CA2174351A1 - Device for conveying loads, in particular felled trees - Google Patents
Device for conveying loads, in particular felled treesInfo
- Publication number
- CA2174351A1 CA2174351A1 CA 2174351 CA2174351A CA2174351A1 CA 2174351 A1 CA2174351 A1 CA 2174351A1 CA 2174351 CA2174351 CA 2174351 CA 2174351 A CA2174351 A CA 2174351A CA 2174351 A1 CA2174351 A1 CA 2174351A1
- Authority
- CA
- Canada
- Prior art keywords
- transport device
- tool carrier
- carriage
- mast
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 210000000078 claw Anatomy 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000032258 transport Effects 0.000 description 41
- 238000010276 construction Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241001312218 Arisaema triphyllum Species 0.000 description 1
- 235000006481 Colocasia esculenta Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C21/00—Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways
- B66C21/04—Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways with cable-ways supported at one end or both ends on bodily movable framework, e.g. framework mounted on rail track
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/003—Collecting felled trees
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention concerns a device (1) for conveying loads, in particular felled trees, the de-vice having a conveyor unit (41) mounted on a movable platform (6) and a mast (10) mounted on the platform (6) so that it can be moved. Running between the conveyor unit (41) and a remotely located end-pulley assembly (34) is a load-carrying element (42) on which runs a travelling carriage (51, 52) which is fitted with a hoisting/lowering device (53) and is displaced by means of a drive unit (48). Located between the conveyor unit (41) and the end-pulley assembly (34) is a trans-mission means (45) which can be frictionally coupled to the drive of the drive unit (48) and to the travelling carriage (51, 52) and/or the hoisting/lowering device (53) to give a continuous line running round the whole device.
Description
217~351 Transport device~for loads, in particular felled trees The invention concerns a transport device as described in the introductory part of patent claim 1.
For the transport of loads over unsurfaced, impassable terrain, in which the load is partly or completely lifted for transport, cable cranes are known. Transport devices of this kind generally consist of a mobile tool carrier with a hydraulically erectable mast and the necessary conveying devices such as motor-driven winches for an auxiliary cable, carrying cable, pull cable and, if occasion arises, a brake cable. Provided at a distance from the tool carrier is a guide device on a suitable anchoring facility such as e.g. a tree, over which run the pull and brake cables and the carrying cable. A carriage with a hoisting and lowering device for the load is arranged movably by means of the pull and brake cables on the carrying cable. Assoclated with each end of the pull and brake cables leading from the tool carrier to the guide device and bac.~ to the tool carrier is, on the tooi carrier, a mot3r-driven -~inch device wi~h winch arum. On the carriage is located a pulley which is wrapped by the pull and brake cables and can be locked in its rotational movement by a control device and braking device or coupled to a cable drum of the hoisting and lowering device.
The disadvantage with these devices is elaborate control for synchronisation of the drives of the winch devices.
It is the object of the invention to provide a transport device which requires low investment costs and allows exact positioning of the carriage.
This object of the invention is achieved by the cAaracteristics shown in the characterising part of paten~
claim 1. The surprising advantage is now gainec by ~he fact that due to the endlessiy ro~a~ing ~ransmission means for travel of the carriage independen~ly of the different operating conditions when going uphill or downhill only one drive device is necessary, and so elaborate control devices for the synchronisation of cycles of movement which is . 217~3~1 necessary when using several drives are eliminated.
Furthermore, erection times on installation of the conveying device are saved, as a result of which rapid putting into operation is made possible and unproductive costs are saved.
But also advantageous is an embodiment according to patent claim 2, as a result of which a substantially increased transport capacity is achieved and, due to the associated shorter operating times for overcoming a given conveying volume, the environmental pollution caused in particular by noise is reduced.
Also possible is an embodiment according to patent claim 3, as a result of which the use of supporting elements of small dimensions is made possible, as a result of which a weight reduction and stable anchoring are obtained.
But patent claim 4 too describes an advantageous development, because by this means an exactly predefinable position between the carriage and the transmission means and also force-locking coupling of the carriage to the transmission means are obtained, and changes in the relative position between the transmission means and the carriage by slipping such as occurs with frictional engagement, are avoided.
But also advantageous is an embodiment according to patent claim 5, because by this means the transmission means exhibits a longitudinal elasticity, as a result of which load shocks are cushioned.
According to the advantageous development as described in patent claim 6, the use of drive systems which are proven in practice and technically advanced is possible.
But also possible is an embodiment according to patent claim 7, because by this means a large number of types of transport devices is possible, which can thus be adapted to different operating circumstances.
According to an advantageous development as described in patent claim 8, reliable operation which meets all -- 217435~
requirements is achieved by the use of standard components.
Also possible is an embodiment according to patent claim 9, because by this means graduations in the working speeds, such as for example the rate of advance of the carriage and the speed of hoisting and lowering the load, and hence a high conveying capacity, are achieved.
Also possible is an embodiment according to patent claim 10, as a result of which very rapid switching operations for different directions of conveying are achieved.
According to an advantageous development as described in patent claim 11, predetermined stopping points are reached with precise position.
Another advantageous embodiment is described by patent claim 12, as a result of which rapid, controlled installation and also dismounting of the transport device on site are achieved.
But also possible is an embodiment according to patent claim 13, as a result of which a circumferential range of 1/4 of the circumference of the drive wheel is available for connection of the transmission means to form an endless run, and hence an assembly range of sufficient dimensions.
According to another advantageous embodiment as described in patent claim 14, rapid adaptation of the position of the carriage on the transmission means after installation of the transport device, but also after changes in length of the conveying zone, is achieved.
But also of advantage is an embodiment according to patent claim 15, because by this means on the carriage there is a supply means for switching, coupling and braking devices which require higher operating forces, and an external supply with corresponding pipes is eliminated.
According to an advantageous development as described in patent claim 16, an additional energy supply for supply of an energy system on the carriage is avoided.
According to an advantageous development as described in patent claim 17, elaborate pipes for connecting the 21~435~
carriage to an external control device are avoided.
According to a development as in patent claim 18, a permanent energy supply of the carriage is ensured.
Of advantage here is an embodiment according to patent claim 19, as a result of which reloading at short intervals is possible, and so large battery capacities are avoided.
But also possible is an embodiment according to patent claim 20, as a result of which the carriage has small external dimensions and a low weight.
An advantageous development is described by patent claim 21, because by this means, irrespective of the location of operating personnel, the control signals required for operation can be transmitted to the carriage.
According to an advantageous development as described in patent claim 22, adjustment between the carriage and the transmission means becomes possible and furthermore, according to the advantageous development as in patent claim 23, a dual function depending on the switching state of the clamping device and braking assembly for travel of the carriage or operation of the hoisting and lowering device is achieved.
But also of advantage is an embodiment according to patent claim 24, because by this means the hoisting and lowering device can be stopped irrespective of the operating condition of the guide wheel driven if occasion arises by the transmission means.
According to an advantageous development as described in patent claim 25, a greater conveying range for carrying out material transports is achieved.
According to an advantageous development as described in patent claim 26, rapid adaptation of the transport device according to the requirements set by the ground formation is possible.
An embodiment according to patent claim 27 allows a change of location of the transport device irrespective of towing vehicles.
According to an advantageous embodiment according to 2t7435l patent claim 28, a manoeuvrable vehicle with small external dimensions is achieved.
According to an advantageous development as described in patent claim 29, assembly personnel for installation of the transport device are saved.
According to an advantageous development as described by patent claim 30, the tool carrier comprises corresponding means for operation which are independent of external systems.
An advantageous development is also described by patent claim 31, as a result of which a high tilting moment is effectively taken up by the loads acting on the tool carrier.
But also of advantage is an embodiment according to patent claim 32, as a result of which a tension force directed counter to the action of the support elements is achieved for taking up the tilting moments.
According to advantageous embodiments as described in patent claims 33 to 35, precise alignment of the mast irrespective of the normal position of the tool carrier is easy.
But another advantageous embodiment is also described by patent claim 36, as a result of which a wide supply range for the transport of loads by the transport device is achieved, at the same time with stable protection of steadiness.
But finally also an embodiment according to patent claim 37 is possible, as a result of which higher loads and hence higher conveying capacities are achieved, and shocks occurring due to varying loads are effectively cushioned, and load peaks do not act on the components, in particular the mast of the transport device.
For a better understanding of the invention, it is described with the aid of the practical examples shown in the figures. They show:ig. 1 a transport device according to the invention in a schematic view;
- 217~51 Fig. 2 the transport device according to Fig. 1 in a top vlew;
Fig. 3 a carriage of the transport device according to the invention in a schematic view;
Fig. 4 the carriage according to Fig. 3 in a top view;
Fig. 5 another variant of the transport device according to the invention in a schematic view;
Fig. 6 another embodiment of the transport device according to the invention in elevation;
Fig. 7 the transport device according to Fig. 6 in a top vlew;
Fig. 8 a damping element for anchoring the transport device according to the invention by anchor cables in elevation, partly in section.
In Figs. 1 and 2 is shown a transport device 1 for the transport of loads 2, in particular felled tree trunks 3, over partly impassable terrain. A tool carrier 6 which is movable on a chassis 5 is stood on a stand surface 4 deposited e.g. in the region of a timber access road and supported on the stand surface 4 by support elements 7 arranged in the corner regions. The support elements 7 are e.g. hydraulically operated telescopic cylinders 8 which can be subjected to pressure individually and in the extended state lift the tool carrier 6 with its chassis 5 off the stand surface 4, and which allow the tool carrier 6 to be moved into a horizontally oriented position, i.e.
levelled, independently of any inclination of the stand surface 4. The tool carrier 6 may be self-propelled or designed as a trailer vehicle.
On a platform 9 of the tool carrier 6 is arranged an e.g. hydraulically operated telescopically extendable mast 10. A mast base 11 of the mast 10 facing towards the platform 9 is supported by a pivot bearing assembly 12 on the platform 9, wherein a pivot shaft 13 runs more or less parallel to the stand surface 4. In this pivot bearing assembly 12 the mast 10 can be erected by means of at least one pressurised cylinder 14 linked to the platform 9 and to
For the transport of loads over unsurfaced, impassable terrain, in which the load is partly or completely lifted for transport, cable cranes are known. Transport devices of this kind generally consist of a mobile tool carrier with a hydraulically erectable mast and the necessary conveying devices such as motor-driven winches for an auxiliary cable, carrying cable, pull cable and, if occasion arises, a brake cable. Provided at a distance from the tool carrier is a guide device on a suitable anchoring facility such as e.g. a tree, over which run the pull and brake cables and the carrying cable. A carriage with a hoisting and lowering device for the load is arranged movably by means of the pull and brake cables on the carrying cable. Assoclated with each end of the pull and brake cables leading from the tool carrier to the guide device and bac.~ to the tool carrier is, on the tooi carrier, a mot3r-driven -~inch device wi~h winch arum. On the carriage is located a pulley which is wrapped by the pull and brake cables and can be locked in its rotational movement by a control device and braking device or coupled to a cable drum of the hoisting and lowering device.
The disadvantage with these devices is elaborate control for synchronisation of the drives of the winch devices.
It is the object of the invention to provide a transport device which requires low investment costs and allows exact positioning of the carriage.
This object of the invention is achieved by the cAaracteristics shown in the characterising part of paten~
claim 1. The surprising advantage is now gainec by ~he fact that due to the endlessiy ro~a~ing ~ransmission means for travel of the carriage independen~ly of the different operating conditions when going uphill or downhill only one drive device is necessary, and so elaborate control devices for the synchronisation of cycles of movement which is . 217~3~1 necessary when using several drives are eliminated.
Furthermore, erection times on installation of the conveying device are saved, as a result of which rapid putting into operation is made possible and unproductive costs are saved.
But also advantageous is an embodiment according to patent claim 2, as a result of which a substantially increased transport capacity is achieved and, due to the associated shorter operating times for overcoming a given conveying volume, the environmental pollution caused in particular by noise is reduced.
Also possible is an embodiment according to patent claim 3, as a result of which the use of supporting elements of small dimensions is made possible, as a result of which a weight reduction and stable anchoring are obtained.
But patent claim 4 too describes an advantageous development, because by this means an exactly predefinable position between the carriage and the transmission means and also force-locking coupling of the carriage to the transmission means are obtained, and changes in the relative position between the transmission means and the carriage by slipping such as occurs with frictional engagement, are avoided.
But also advantageous is an embodiment according to patent claim 5, because by this means the transmission means exhibits a longitudinal elasticity, as a result of which load shocks are cushioned.
According to the advantageous development as described in patent claim 6, the use of drive systems which are proven in practice and technically advanced is possible.
But also possible is an embodiment according to patent claim 7, because by this means a large number of types of transport devices is possible, which can thus be adapted to different operating circumstances.
According to an advantageous development as described in patent claim 8, reliable operation which meets all -- 217435~
requirements is achieved by the use of standard components.
Also possible is an embodiment according to patent claim 9, because by this means graduations in the working speeds, such as for example the rate of advance of the carriage and the speed of hoisting and lowering the load, and hence a high conveying capacity, are achieved.
Also possible is an embodiment according to patent claim 10, as a result of which very rapid switching operations for different directions of conveying are achieved.
According to an advantageous development as described in patent claim 11, predetermined stopping points are reached with precise position.
Another advantageous embodiment is described by patent claim 12, as a result of which rapid, controlled installation and also dismounting of the transport device on site are achieved.
But also possible is an embodiment according to patent claim 13, as a result of which a circumferential range of 1/4 of the circumference of the drive wheel is available for connection of the transmission means to form an endless run, and hence an assembly range of sufficient dimensions.
According to another advantageous embodiment as described in patent claim 14, rapid adaptation of the position of the carriage on the transmission means after installation of the transport device, but also after changes in length of the conveying zone, is achieved.
But also of advantage is an embodiment according to patent claim 15, because by this means on the carriage there is a supply means for switching, coupling and braking devices which require higher operating forces, and an external supply with corresponding pipes is eliminated.
According to an advantageous development as described in patent claim 16, an additional energy supply for supply of an energy system on the carriage is avoided.
According to an advantageous development as described in patent claim 17, elaborate pipes for connecting the 21~435~
carriage to an external control device are avoided.
According to a development as in patent claim 18, a permanent energy supply of the carriage is ensured.
Of advantage here is an embodiment according to patent claim 19, as a result of which reloading at short intervals is possible, and so large battery capacities are avoided.
But also possible is an embodiment according to patent claim 20, as a result of which the carriage has small external dimensions and a low weight.
An advantageous development is described by patent claim 21, because by this means, irrespective of the location of operating personnel, the control signals required for operation can be transmitted to the carriage.
According to an advantageous development as described in patent claim 22, adjustment between the carriage and the transmission means becomes possible and furthermore, according to the advantageous development as in patent claim 23, a dual function depending on the switching state of the clamping device and braking assembly for travel of the carriage or operation of the hoisting and lowering device is achieved.
But also of advantage is an embodiment according to patent claim 24, because by this means the hoisting and lowering device can be stopped irrespective of the operating condition of the guide wheel driven if occasion arises by the transmission means.
According to an advantageous development as described in patent claim 25, a greater conveying range for carrying out material transports is achieved.
According to an advantageous development as described in patent claim 26, rapid adaptation of the transport device according to the requirements set by the ground formation is possible.
An embodiment according to patent claim 27 allows a change of location of the transport device irrespective of towing vehicles.
According to an advantageous embodiment according to 2t7435l patent claim 28, a manoeuvrable vehicle with small external dimensions is achieved.
According to an advantageous development as described in patent claim 29, assembly personnel for installation of the transport device are saved.
According to an advantageous development as described by patent claim 30, the tool carrier comprises corresponding means for operation which are independent of external systems.
An advantageous development is also described by patent claim 31, as a result of which a high tilting moment is effectively taken up by the loads acting on the tool carrier.
But also of advantage is an embodiment according to patent claim 32, as a result of which a tension force directed counter to the action of the support elements is achieved for taking up the tilting moments.
According to advantageous embodiments as described in patent claims 33 to 35, precise alignment of the mast irrespective of the normal position of the tool carrier is easy.
But another advantageous embodiment is also described by patent claim 36, as a result of which a wide supply range for the transport of loads by the transport device is achieved, at the same time with stable protection of steadiness.
But finally also an embodiment according to patent claim 37 is possible, as a result of which higher loads and hence higher conveying capacities are achieved, and shocks occurring due to varying loads are effectively cushioned, and load peaks do not act on the components, in particular the mast of the transport device.
For a better understanding of the invention, it is described with the aid of the practical examples shown in the figures. They show:ig. 1 a transport device according to the invention in a schematic view;
- 217~51 Fig. 2 the transport device according to Fig. 1 in a top vlew;
Fig. 3 a carriage of the transport device according to the invention in a schematic view;
Fig. 4 the carriage according to Fig. 3 in a top view;
Fig. 5 another variant of the transport device according to the invention in a schematic view;
Fig. 6 another embodiment of the transport device according to the invention in elevation;
Fig. 7 the transport device according to Fig. 6 in a top vlew;
Fig. 8 a damping element for anchoring the transport device according to the invention by anchor cables in elevation, partly in section.
In Figs. 1 and 2 is shown a transport device 1 for the transport of loads 2, in particular felled tree trunks 3, over partly impassable terrain. A tool carrier 6 which is movable on a chassis 5 is stood on a stand surface 4 deposited e.g. in the region of a timber access road and supported on the stand surface 4 by support elements 7 arranged in the corner regions. The support elements 7 are e.g. hydraulically operated telescopic cylinders 8 which can be subjected to pressure individually and in the extended state lift the tool carrier 6 with its chassis 5 off the stand surface 4, and which allow the tool carrier 6 to be moved into a horizontally oriented position, i.e.
levelled, independently of any inclination of the stand surface 4. The tool carrier 6 may be self-propelled or designed as a trailer vehicle.
On a platform 9 of the tool carrier 6 is arranged an e.g. hydraulically operated telescopically extendable mast 10. A mast base 11 of the mast 10 facing towards the platform 9 is supported by a pivot bearing assembly 12 on the platform 9, wherein a pivot shaft 13 runs more or less parallel to the stand surface 4. In this pivot bearing assembly 12 the mast 10 can be erected by means of at least one pressurised cylinder 14 linked to the platform 9 and to
2 1 7 ~
the mast 10, between a position more or less parallel to the stand surface 4 and a position forming an angle of 90 thereto, as is necessary for operation of the transport device 1 for reasons of stability.
Opposite the mast base 11, a mast head 15 comprises a head carrier 16 which extends more or less parallel to the stand surface 4 and on opposite faces 17, 18 comprises journals 19, 20 extending parallel to the stand surface 4, about which guide rollers 21 to 24 are mounted rotatably.
In the region of the mast base 11, associated with the guide rollers 21 to 24 are guide rollers 27 to 30, also about journals 25, 26 extending parallel to the stand surface 4.
At a distance 31 from the tool carrier 6 or the head carrier 16 arranged on the mast head 15, a guide device 34 is attached to a support device 32, e.g. a tree 33 standing on the ground. This guide device 34 consists for example of a carrier 35 extending more or less parallel to the head carrier 16 and formed from a bending-resistant profile such as e.g. a U-profile, C-profile, square profile etc., and comprises in opposite end regions 36, 37 guide rollers 38, 39 for a supporting element 42 which leads from a fastening assembly 40 on the tool carrier 6 over the guide roller 24 of the head carrier 16 and the guide rollers 38, 39 of the guide device 34 and the guide roller 21 on the head carrier 16, to a conveying device 41 on the tool carrier 6, and which is formed e.g. by a multi-core steel cable.
A transmission means 45, e.g. a drive chain 46, in particular a round link chain, runs more or less parallel thereto between the tool carrier 6 and the guide rollers 22, 23 of the head carrier 16 and guide rollers 43, 44 of the guide device 34.
But furthermore the transmission means 45 can be formed for example by a cable provided with balls, double-cone balls, etc. pressed on with drivers. Further, flat link chains or roller chains are also possible for use as the transmission means 45.
- ~1 74~S L
This transmission means 45 forms an endless run which extends on the tool carrier 6 over a drive wheel 47 of a feed mechanism 48, e.g. motor-driven chain drive gear 49.
In the regions of the supporting element 42 extending between the head carrier 16 and the guide device 34, carriages 51, 52 supported thereon by rollers 50 are arranged movably. These carriages 51, 52 comprise hoisting and lowering devices 53 for transport of the load 2. For travel of the carriages 51, 52 along the regions of the supporting element 42 extending between the head carriers 16 and the guide device 34, the carriages 51, 52 are coupled immovably to the transmission means 45. By setting in operation the feed mechanism 48 on the tool carrier 6, wherein the drive wheel 47 if necessary can be driven in the opposite direction of rotation, there is travel of the carriages 51, 52 along the conveying zone predetermined by the supporting element 42, this being by two-run construction for the forward and return motions of the transmission means 45 for respectively diametrically opposed movement of the carriages 51, 52 arranged on one run each. It is also advantageous if on the tool carrier 6 is arranged a braking device for the transmission means 45 or the drive device.
For stable anchorage of the tool carrier 6 or its mast 10 and the guide device 34, on them are arranged anchor cables 54 which are anchored at suitable points in the ground after assembly of the system before laying and tensioning the supporting element 42 and the transmission means 45. The anchor cables 54 are provided with damping elements 55 which act as shock absorbers if load shocks occur and so reduce the risk of a cable breaking. The damping elements 55 linked to the run of the anchor cables 54 comprise, as a shock-absorbing element, a compression spring assembly which is formed from cup springs laminated with each other and in which the tensile loads and load shocks occurring at the anchor cable 54 are resiliently reduced.
- 2174~51 As can now be seen better from Fig. 2, the chain drive gear 49 is arranged on the tool carrier 6 or on the platform 9 thereof. In the practical example shown, the drive wheel 47 of the chain drive gear 49 is oriented in a plane parallel to the platform 9 and rotated by means of a drive motor 56, which is formed e.g. by an internal combustion engine or an electric or hydraulic motor, with the interposition of a gear mechanism 57 about a shaft 58 extending perpendicularly to the platform 9, the direction of rotation being reversible. The gear mechanism 57 can be formed e.g. by a change-speed gearbox with clutch or a hydraulic converter gear.
Naturally an arrangement in which the drive wheel 47 rotates in a plane extending perpendicularly to the platform 9 is possible. The drive wheel 47 is designed as a sprocket, e.g. toothed sprocket, side link sprocket etc.
for form-locking and/or force-locking connection to the transmission means 45.
Further, on the platform 9 associated with the chain drive gear 49 are arranged a transmission means store 59 and a winch 60. The latter comprise drums 61 for holding the drive chain 46, which can be driven by drive motors 62.
A chain run 63 approaching the drive wheel 47 tangentially from the transmission means store 59 forms with a chain run 64, which moves away from the drive wheel 47 tangentially in the direction of the winch 60 and wraps around the drive wheel 47 on the side facing away from the guide device 34 by a quarter of the circumference, an angle of about 90.
When the transport device 1 is erected to set in operation the device for conveying the load 2, the tool carrier 6 is positioned on a suitable standing location and levelled with the support elements 7, and the mast 10 is put in position and anchored in the ground against fixed points with the anchor cables 54. Further, the guide device 34 is attached to the support device 32 at the distance 31 predetermined by the conveying zone, and also anchored in the ground at fixed points by the anchor cables - 2 l 74351 54 in a direction opposite the tool carrier 6. Subsequent-ly the supporting element 42 is paid out along the conveying zone between tool carrier 6 and guide device 34, using the guide rollers already described. The same operation is performed with the drive chain 46 which is unwound from the transmission means store 59. To assist this operation, on the tool carrier 6 can be arranged an auxiliary cable winch 65 for an auxiliary cable 66 with which both the supporting element 42 and the drive chain 46 are hoisted up between the tool carrier 6 and the guide device 34. The two conveying runs 67, 68, which still mainly rest on the ground between the tool carrier 6 and the guide device 34, are provided with the carriages 51, 52. The further process of putting into operation now provides for tensioning the supporting element 42 with the conveying device 41 between the tool carrier 6 or the mast head 15 and the guide device 34.
At the end of this process by setting in operation the chain drive gear 49 and the winch 60 when the chain store is stopped the transmission means 45 is tensioned between tool carrier 6 and guide device 34, wherein the chain run 63 running off the transmission means store 59 is not engaged with the drive wheel 47. The chain run 63 is here spaced apart from the drive wheel 47 by a working height predetermined by the drive chain 46. Thus tensioning of the transmission means 45 is now possible by means of the rotary movement of the drive wheel 47 according to an arrow 69, wherein the drive chain 46 running off the drive wheel 47 is wound onto the drum 61 of the winch 60. If the transmission means 45 is now in a position tensioned according to the supporting element 42, between the tool carrier 6 or mast head 15 and the guide device 34, then the drive wheel 47 and the winch 60 are stopped and the chain run 63 between the transmission means store 59 and the drive wheel 47 is brought into engagement with the drive wheel 47 by means of an e.g. pressurised cylinder 70. The same also applies to the chain run 64. Thus the - ` 2174~5l transmission means 45 is fixed in form-locking relationship to the drive wheel 47, as a result of which the chain runs 63, 64 between the drive wheel 47 and the transmission means store 59 and the winch 60 become slack. The two chain runs 63, 64 are now cut through mechanically e.g. by sawing and in total reduced to a length which is one-quarter of the circumferential length on the drive wheel 47. These end regions of the drive chain 46 obtained in this way are now brought into engagement with the drive wheel 47 and connected to each other with a connecting element 71, e.g. a screwable chain link 72, as shown schematically in dashed lines. Thus for operation of the transport device 1, the transmission means 45 extending endlessly between the tool carrier 6 and the guide device 34 is achieved. There now follows positioning of the carriages 51, 52 in the region of the conveying runs 67, 68 by individual travel along the supporting element 42 by means of the transmission means 45. To achieve this, the carriages 51, 52 comprise alternately controllable clutch devices 73, 74 with which they can be coupled selectively relative to the supporting element 42 and the transmission means 45. The final position of the carriages 51, 52 is in this case selected in such a way that one carriage 51, 52 is each arranged alternately in the region of the mast 10 and in the region of the guide device 34. By alternate drive of the drive wheel 47 in relation to the direction of rotation, travel of the carriages 51, 52 in mutually opposed directions of advance according to arrows 75, 76 is possible, wherein in each case one of the carriages 51, 52 is movable in the direction of the tool carrier 6 and the other of the carriages 51, 52 is movable in the direction of the guide device 34 or in opposite directions. Thus idle travel is avoided and the capacity of the transport device 1 is increased.
In Figs. 3 and 4 is shown the carriage 51, 52. This consists of a supporting plate 77 which comprises rotatably mounted rollers 50 spaced apart from each other by a - 21 i7~13~ 1 distance 78 and is supported by them on the supporting element 42. Depending on the nature of the load 2 to be conveyed, additional rollers 50 may be provided. Another roller 79 supported on the supporting element 42 is rotatably coupled to a pressure generator 80, e.g. a hydraulic pump 81. This pressure generator 80 during operation of the carriage 51 supplies via pipes 82, 83 an accumulator 84 mounted on the supporting plate 77 with a pressure medium, e.g. hydraulic oil, from a store 85 mounted on the supporting plate 77. Further, on the supporting plate 77 are arranged at least three guide wheels 87, 88, 89 for the transmission means 45, which are rotatable about rotary shafts 86 extending parallel to each other and in a plane parallel to the plane of rotation of the rollers 50, 79. If the transmission means 45 is designed as a drive chain 46, the guide wheels 87, 88, 89 for making a form-locking connection are designed as toothed sprockets or side link sprockets. The transmission means 45, which extends more or less parallel to the supporting element 42, is deflected through approximately 90 at two spaced-apart guide wheels 87, 89, and wraps around the other guide wheel 88 arranged between the guide wheels 87, 89 and offset therefrom, through approximately 180. This guide wheel 88 forms a drive wheel 90 of the hoisting and lowering device 53 for the load 2, and can be coupled by a shaft 91 rotatably connected to the drive wheel 90 and a controllable clutch 92, e.g. a claw clutch, plate clutch, etc., to a drum 93 for a load means 94, e.g.
cable, chain, etc. Associated with the drive wheel 90 is a locking device 96 formed by a hydraulically operated braking assembly 95, e.g. a disc brake.
Further, on the supporting plate 77 is arranged a hydraulically operated clamping device 97 encompassing the supporting element 42. The clamping device 97, clutch 92 and locking device 96 are conductively connected to the accumulator 84, with the interposition of valves 98, 99, 100 .
- 217~3~1 Further, the carriage 51 comprises a control device 101 which is provided e.g. with a radio receiver 102 and comprises switching means 103 for operation of the valves 98, 99, 100 conductively connected to the control device 101 .
The manner of operation of the carriage 51 is now as follows.
Essentially three operating conditions are provided, namely travel of the carriage 51 on the supporting element 42, the performance of hoisting and lowering operations for the load 2 while the carriage 51 is stationary relative to the supporting element 42, and alteration of the position of the carriage 51 in relation to the transmission means 45.
If the carriage 51 for idle travel or travel with a load 2 picked up is to be displaced on the supporting element 42 according to a double arrow 104, then the braking assembly 95 which locks the guide wheel 88 is actuated. This takes place e.g. by a radio command which triggers the valve 98 via the radio receiver 102 and the switching means 103, as a result of which a brake cylinder 105 admits pressure medium, e.g. a hydraulic oil, from the accumulator 84. The braking assembly 95 can in this case act directly on the guide wheel 88 or a disc 106 which is connected in driving relationship by a chain drive 107 to a pinion 108 rotatably connected to the guide wheel 88. By locking the guide wheel 88, a force-locking connection is made between the latter and the transmission means 45. If now the transmission means 45 is set in motion in the desired direction of conveying, then the carriage 51 is entrained and, as long as the transmission means 45 is moved, displaced on the supporting element 42. After reaching a predetermined position, wherein this can be detected manually or by control means such as proximity switches, limit switches, etc. on the supporting element 42 or the chain 45, movement of the chain 45 is stopped. If now in this position the hoisting and lowering device 53 is - 2~7~3~1 to be actuated for hoisting or lowering the load 2, then the carriage 51 is fixed with the clamping device 97 to the supporting element 42. This operation too takes place hydraulically by making the pressure connection between the accumulator 84 and the clamping device 97 by means of the valve 99. After opening of the braking assembly 95 and hence release of the guide wheel 88, there follow setting in operation of the transmission means 45 and, via the shaft 91 and the engaged clutch 92, the rotary movement of the drum 93 and, depending on the direction of advance of the transmission means 45, winding and unwinding of the load means 94.
If the carriage 51 is to be altered with respect to its position relative to the transmission means 45, as takes place e.g. during assembly for putting the transport device 1 into operation, the carriage 51 is fixed to the supporting element 42 with the clamping device 97 and the transmission means 45 is set in motion, wherein locking of the guide wheel 88 by the braking assembly 95 is eliminated. In order to avoid winding and unwinding of the load means 94 in this operating condition, the clutch 92 interposed between the shaft 91 and the drum 93 is released. The arrangement of another braking device 109 is possible here too, to prevent unwanted rotation of the drum 93. This braking device 109 too can be formed e.g. by a disc brake which can admit the pressure medium from the accumulator 84.
To supply the control device 101 of the carriage 51 with a control voltage, on the latter is arranged an energy source llo, e.g. a rechargeable battery. The energy supply of the carriage 51 is however also alternative with a towing cable which is connected to an energy supply device of the tool carrier 6. In case of use of rechargeable batteries, it is also possible to provide, in the region of the terminal position of the carriage 51, in particular on the head carrier 16 of the mast 10, a point of attachment via which recharging of energy can be performed in - 2174~1 downtimes.
In Fig. 5 is shown another construction of the transport device 1. In this, at a distance from the tool carrier 6 two guide rollers 112, 113 independent of each other are anchored at a greater distance from each other, e.g. to trees 33. Between the tool carrier 6 and the guide rollers 112, 113 runs the endlessly rotating drive chain 46. Between the tool carrier 6 and the guide roller 112 or the guide roller 113 runs in each case, more or less parallel to the course of the drive chain 46, a supporting element 114, 115 which is mounted in mounting assemblies 116 on a bracket 117 for the guide rollers 112, 113. From this bracket 117 also leads, approximately in the direction of the supporting element, an anchor cable 54 provided with the damping element 55, to a fixed point or anchor point in the ground. On each of the supporting elements 114, 115, which in their course form a conveying region, one of the carriages 51, 52 is arranged movably via the rollers 50 and can be positioned on the drive chain 46.
With this construction, due to the spaced-apart arrangement of the guide rollers 112, 113 arranged opposite the tool carrier 6 and the possibility of lateral deflection of the load means 94 for picking up the load 2, a correspondingly large total region can be covered with respect to transport.
In Figs. 6 and 7 is shown another variant of the transport device 1. The tool carrier 6 with this construction comprises a mast assembly 118 consisting of several parts, in which the mast 10 at the mast head 15 comprises a crossbeam 119 with hinged assembly 120, in which swing-out arms 121 are coupled. Preferably a length of the arm 121, which is e.g. of telescopic construction, is hydraulically adjustable. At their ends 122 opposite the hinged assembly 120 are arranged poles 124 which are pivotable relative to the arm 121 by additional hinged assemblies 123 and constructed for example as telescopic cylinders 125 hydraulically adjustable in length. More or - ` 2174351 less in the region of the hinged assembly 123, the anchor cables 54 are attached to the poles 124 in order to support or anchor them at fixed points in the ground against the action of tensile force caused by the supporting element 42 and the drive chain. In this case the anchor cables 54 comprise the damping elements 55 which damp load shocks which occur during operation of the transport device 1.
As already described in the above statements, at a distance from the poles 124 the brackets 117 with the guide rollers 112, 113 are anchored to suitable support devices in the ground to form the endless run of the drive chain 46 between the tool carrier 6 with the mast assembly 118. To guide the chain, also provided in the region of the hinged assemblies 123 are guide rollers both for the supporting element 42 and for the drive chain 46.
With this arrangement of the transport device 1 are also provided, as already described in the preceding figures, at least two carriages 51, 52. Due to the construction of the mast assembly 118 with the arms 121 and the poles 124 and the spaced-apart guide rollers 112, 113, a large area can be covered with respect to transport with the transport device 1.
Due to the multi-part construction of the mast assembly 118 with the arms 121 and the poles 124 and the hinged assemblies, space-saving collapse is possible when transporting the tool carrier 6 between different transport locations.
In Fig. 8 is shown the damping element 55 for the anchor cables 54. This comprises a tubular housing 126 which is connected at one end 127 by a cover portion 129 welded to a tube wall 128. Concentrically with a longitudinal centre axis 130, the cover portion 129 comprises a bore 131. At one end 132 opposite the cover portion 129 is arranged a bottom portion 133 which is releasably connected to the housing 126 and screwed, for example with a threaded journal 134, into an internal thread 135 of the housing 126. A mounting plate 136 with -~17~3~
a bore 137 for receiving a cable loop 138 is attached, for example by welding, to the bottom portion 133 on the side facing away from the threaded journal 134. Through the cover portion 129 in the bore 131 passes a stay 139 which, at one end 140 facing away from the housing 126, forms a mounting eye 141 for a cable loop 142. The stay 139 is provided with an external thread 145 at its other end 144 opposite the mounting eye 141 and arranged in an interior 143 of the housing 126. Between the cover portion 129 and a mounting nut 146, which is provided on the external thread 145 of the stay 139, is arranged a compression spring element 147. This compression spring element 147 is for example formed by an assembly of cup springs 148. But of course construction of the compression spring element 147 as a helical compression spring, elastically deformable damping body, etc. is possible too.
It is also possible according to the invention to arrange on the tool carrier 6 an energy generating system, e.g. an internal combustion engine, with a hydraulic system coupled thereto and/or a generator. Further it would also be possible to supply the transport device 1 with the energy for operation from another energy source, e.g. from a public network, emergency power unit, etc.
Further it is possible for at least one support element 7 of the support assembly to be arranged as a central pole on the tool carrier 6, in which the line of application of the supporting force passes through the centre of gravity of the tool carrier 6.
It is also conceivable that the mast 10 is arranged on an additional supporting plate which is pivotable relative to the platform 9 of the tool carrier 6 about an axis extending in a direction perpendicular to the stand surface 4.
Further, the mast 10 can be constructed as a multi-part mast assembly 118 which in the erected state forms three poles 124 which extend more or less vertically to the stand surface 4 and are connected in end regions facing -21743Sl ` 18 away from the stand surface 4 by arms 121 extending more or less parallel to the stand surface 4.
It is pointed out that sometimes disproportionate scales were selected for greater clarity in the drawings.
Naturally the technical details and the components described, in particular fitting of the tool carrier with the chain drive gear, the feed mechanism, the mast assembly, control means and carriages etc. can be modified as desired within the scope of the expert's capability.
Finally the individual constructions shown in Figs. 1, 2; 3, 4; 5; 6, 7; 8 may also form the subject of independent solutions according to the invention. The objects and solutions according to the invention in this respect can be found in the detailed descriptions of these figures.
the mast 10, between a position more or less parallel to the stand surface 4 and a position forming an angle of 90 thereto, as is necessary for operation of the transport device 1 for reasons of stability.
Opposite the mast base 11, a mast head 15 comprises a head carrier 16 which extends more or less parallel to the stand surface 4 and on opposite faces 17, 18 comprises journals 19, 20 extending parallel to the stand surface 4, about which guide rollers 21 to 24 are mounted rotatably.
In the region of the mast base 11, associated with the guide rollers 21 to 24 are guide rollers 27 to 30, also about journals 25, 26 extending parallel to the stand surface 4.
At a distance 31 from the tool carrier 6 or the head carrier 16 arranged on the mast head 15, a guide device 34 is attached to a support device 32, e.g. a tree 33 standing on the ground. This guide device 34 consists for example of a carrier 35 extending more or less parallel to the head carrier 16 and formed from a bending-resistant profile such as e.g. a U-profile, C-profile, square profile etc., and comprises in opposite end regions 36, 37 guide rollers 38, 39 for a supporting element 42 which leads from a fastening assembly 40 on the tool carrier 6 over the guide roller 24 of the head carrier 16 and the guide rollers 38, 39 of the guide device 34 and the guide roller 21 on the head carrier 16, to a conveying device 41 on the tool carrier 6, and which is formed e.g. by a multi-core steel cable.
A transmission means 45, e.g. a drive chain 46, in particular a round link chain, runs more or less parallel thereto between the tool carrier 6 and the guide rollers 22, 23 of the head carrier 16 and guide rollers 43, 44 of the guide device 34.
But furthermore the transmission means 45 can be formed for example by a cable provided with balls, double-cone balls, etc. pressed on with drivers. Further, flat link chains or roller chains are also possible for use as the transmission means 45.
- ~1 74~S L
This transmission means 45 forms an endless run which extends on the tool carrier 6 over a drive wheel 47 of a feed mechanism 48, e.g. motor-driven chain drive gear 49.
In the regions of the supporting element 42 extending between the head carrier 16 and the guide device 34, carriages 51, 52 supported thereon by rollers 50 are arranged movably. These carriages 51, 52 comprise hoisting and lowering devices 53 for transport of the load 2. For travel of the carriages 51, 52 along the regions of the supporting element 42 extending between the head carriers 16 and the guide device 34, the carriages 51, 52 are coupled immovably to the transmission means 45. By setting in operation the feed mechanism 48 on the tool carrier 6, wherein the drive wheel 47 if necessary can be driven in the opposite direction of rotation, there is travel of the carriages 51, 52 along the conveying zone predetermined by the supporting element 42, this being by two-run construction for the forward and return motions of the transmission means 45 for respectively diametrically opposed movement of the carriages 51, 52 arranged on one run each. It is also advantageous if on the tool carrier 6 is arranged a braking device for the transmission means 45 or the drive device.
For stable anchorage of the tool carrier 6 or its mast 10 and the guide device 34, on them are arranged anchor cables 54 which are anchored at suitable points in the ground after assembly of the system before laying and tensioning the supporting element 42 and the transmission means 45. The anchor cables 54 are provided with damping elements 55 which act as shock absorbers if load shocks occur and so reduce the risk of a cable breaking. The damping elements 55 linked to the run of the anchor cables 54 comprise, as a shock-absorbing element, a compression spring assembly which is formed from cup springs laminated with each other and in which the tensile loads and load shocks occurring at the anchor cable 54 are resiliently reduced.
- 2174~51 As can now be seen better from Fig. 2, the chain drive gear 49 is arranged on the tool carrier 6 or on the platform 9 thereof. In the practical example shown, the drive wheel 47 of the chain drive gear 49 is oriented in a plane parallel to the platform 9 and rotated by means of a drive motor 56, which is formed e.g. by an internal combustion engine or an electric or hydraulic motor, with the interposition of a gear mechanism 57 about a shaft 58 extending perpendicularly to the platform 9, the direction of rotation being reversible. The gear mechanism 57 can be formed e.g. by a change-speed gearbox with clutch or a hydraulic converter gear.
Naturally an arrangement in which the drive wheel 47 rotates in a plane extending perpendicularly to the platform 9 is possible. The drive wheel 47 is designed as a sprocket, e.g. toothed sprocket, side link sprocket etc.
for form-locking and/or force-locking connection to the transmission means 45.
Further, on the platform 9 associated with the chain drive gear 49 are arranged a transmission means store 59 and a winch 60. The latter comprise drums 61 for holding the drive chain 46, which can be driven by drive motors 62.
A chain run 63 approaching the drive wheel 47 tangentially from the transmission means store 59 forms with a chain run 64, which moves away from the drive wheel 47 tangentially in the direction of the winch 60 and wraps around the drive wheel 47 on the side facing away from the guide device 34 by a quarter of the circumference, an angle of about 90.
When the transport device 1 is erected to set in operation the device for conveying the load 2, the tool carrier 6 is positioned on a suitable standing location and levelled with the support elements 7, and the mast 10 is put in position and anchored in the ground against fixed points with the anchor cables 54. Further, the guide device 34 is attached to the support device 32 at the distance 31 predetermined by the conveying zone, and also anchored in the ground at fixed points by the anchor cables - 2 l 74351 54 in a direction opposite the tool carrier 6. Subsequent-ly the supporting element 42 is paid out along the conveying zone between tool carrier 6 and guide device 34, using the guide rollers already described. The same operation is performed with the drive chain 46 which is unwound from the transmission means store 59. To assist this operation, on the tool carrier 6 can be arranged an auxiliary cable winch 65 for an auxiliary cable 66 with which both the supporting element 42 and the drive chain 46 are hoisted up between the tool carrier 6 and the guide device 34. The two conveying runs 67, 68, which still mainly rest on the ground between the tool carrier 6 and the guide device 34, are provided with the carriages 51, 52. The further process of putting into operation now provides for tensioning the supporting element 42 with the conveying device 41 between the tool carrier 6 or the mast head 15 and the guide device 34.
At the end of this process by setting in operation the chain drive gear 49 and the winch 60 when the chain store is stopped the transmission means 45 is tensioned between tool carrier 6 and guide device 34, wherein the chain run 63 running off the transmission means store 59 is not engaged with the drive wheel 47. The chain run 63 is here spaced apart from the drive wheel 47 by a working height predetermined by the drive chain 46. Thus tensioning of the transmission means 45 is now possible by means of the rotary movement of the drive wheel 47 according to an arrow 69, wherein the drive chain 46 running off the drive wheel 47 is wound onto the drum 61 of the winch 60. If the transmission means 45 is now in a position tensioned according to the supporting element 42, between the tool carrier 6 or mast head 15 and the guide device 34, then the drive wheel 47 and the winch 60 are stopped and the chain run 63 between the transmission means store 59 and the drive wheel 47 is brought into engagement with the drive wheel 47 by means of an e.g. pressurised cylinder 70. The same also applies to the chain run 64. Thus the - ` 2174~5l transmission means 45 is fixed in form-locking relationship to the drive wheel 47, as a result of which the chain runs 63, 64 between the drive wheel 47 and the transmission means store 59 and the winch 60 become slack. The two chain runs 63, 64 are now cut through mechanically e.g. by sawing and in total reduced to a length which is one-quarter of the circumferential length on the drive wheel 47. These end regions of the drive chain 46 obtained in this way are now brought into engagement with the drive wheel 47 and connected to each other with a connecting element 71, e.g. a screwable chain link 72, as shown schematically in dashed lines. Thus for operation of the transport device 1, the transmission means 45 extending endlessly between the tool carrier 6 and the guide device 34 is achieved. There now follows positioning of the carriages 51, 52 in the region of the conveying runs 67, 68 by individual travel along the supporting element 42 by means of the transmission means 45. To achieve this, the carriages 51, 52 comprise alternately controllable clutch devices 73, 74 with which they can be coupled selectively relative to the supporting element 42 and the transmission means 45. The final position of the carriages 51, 52 is in this case selected in such a way that one carriage 51, 52 is each arranged alternately in the region of the mast 10 and in the region of the guide device 34. By alternate drive of the drive wheel 47 in relation to the direction of rotation, travel of the carriages 51, 52 in mutually opposed directions of advance according to arrows 75, 76 is possible, wherein in each case one of the carriages 51, 52 is movable in the direction of the tool carrier 6 and the other of the carriages 51, 52 is movable in the direction of the guide device 34 or in opposite directions. Thus idle travel is avoided and the capacity of the transport device 1 is increased.
In Figs. 3 and 4 is shown the carriage 51, 52. This consists of a supporting plate 77 which comprises rotatably mounted rollers 50 spaced apart from each other by a - 21 i7~13~ 1 distance 78 and is supported by them on the supporting element 42. Depending on the nature of the load 2 to be conveyed, additional rollers 50 may be provided. Another roller 79 supported on the supporting element 42 is rotatably coupled to a pressure generator 80, e.g. a hydraulic pump 81. This pressure generator 80 during operation of the carriage 51 supplies via pipes 82, 83 an accumulator 84 mounted on the supporting plate 77 with a pressure medium, e.g. hydraulic oil, from a store 85 mounted on the supporting plate 77. Further, on the supporting plate 77 are arranged at least three guide wheels 87, 88, 89 for the transmission means 45, which are rotatable about rotary shafts 86 extending parallel to each other and in a plane parallel to the plane of rotation of the rollers 50, 79. If the transmission means 45 is designed as a drive chain 46, the guide wheels 87, 88, 89 for making a form-locking connection are designed as toothed sprockets or side link sprockets. The transmission means 45, which extends more or less parallel to the supporting element 42, is deflected through approximately 90 at two spaced-apart guide wheels 87, 89, and wraps around the other guide wheel 88 arranged between the guide wheels 87, 89 and offset therefrom, through approximately 180. This guide wheel 88 forms a drive wheel 90 of the hoisting and lowering device 53 for the load 2, and can be coupled by a shaft 91 rotatably connected to the drive wheel 90 and a controllable clutch 92, e.g. a claw clutch, plate clutch, etc., to a drum 93 for a load means 94, e.g.
cable, chain, etc. Associated with the drive wheel 90 is a locking device 96 formed by a hydraulically operated braking assembly 95, e.g. a disc brake.
Further, on the supporting plate 77 is arranged a hydraulically operated clamping device 97 encompassing the supporting element 42. The clamping device 97, clutch 92 and locking device 96 are conductively connected to the accumulator 84, with the interposition of valves 98, 99, 100 .
- 217~3~1 Further, the carriage 51 comprises a control device 101 which is provided e.g. with a radio receiver 102 and comprises switching means 103 for operation of the valves 98, 99, 100 conductively connected to the control device 101 .
The manner of operation of the carriage 51 is now as follows.
Essentially three operating conditions are provided, namely travel of the carriage 51 on the supporting element 42, the performance of hoisting and lowering operations for the load 2 while the carriage 51 is stationary relative to the supporting element 42, and alteration of the position of the carriage 51 in relation to the transmission means 45.
If the carriage 51 for idle travel or travel with a load 2 picked up is to be displaced on the supporting element 42 according to a double arrow 104, then the braking assembly 95 which locks the guide wheel 88 is actuated. This takes place e.g. by a radio command which triggers the valve 98 via the radio receiver 102 and the switching means 103, as a result of which a brake cylinder 105 admits pressure medium, e.g. a hydraulic oil, from the accumulator 84. The braking assembly 95 can in this case act directly on the guide wheel 88 or a disc 106 which is connected in driving relationship by a chain drive 107 to a pinion 108 rotatably connected to the guide wheel 88. By locking the guide wheel 88, a force-locking connection is made between the latter and the transmission means 45. If now the transmission means 45 is set in motion in the desired direction of conveying, then the carriage 51 is entrained and, as long as the transmission means 45 is moved, displaced on the supporting element 42. After reaching a predetermined position, wherein this can be detected manually or by control means such as proximity switches, limit switches, etc. on the supporting element 42 or the chain 45, movement of the chain 45 is stopped. If now in this position the hoisting and lowering device 53 is - 2~7~3~1 to be actuated for hoisting or lowering the load 2, then the carriage 51 is fixed with the clamping device 97 to the supporting element 42. This operation too takes place hydraulically by making the pressure connection between the accumulator 84 and the clamping device 97 by means of the valve 99. After opening of the braking assembly 95 and hence release of the guide wheel 88, there follow setting in operation of the transmission means 45 and, via the shaft 91 and the engaged clutch 92, the rotary movement of the drum 93 and, depending on the direction of advance of the transmission means 45, winding and unwinding of the load means 94.
If the carriage 51 is to be altered with respect to its position relative to the transmission means 45, as takes place e.g. during assembly for putting the transport device 1 into operation, the carriage 51 is fixed to the supporting element 42 with the clamping device 97 and the transmission means 45 is set in motion, wherein locking of the guide wheel 88 by the braking assembly 95 is eliminated. In order to avoid winding and unwinding of the load means 94 in this operating condition, the clutch 92 interposed between the shaft 91 and the drum 93 is released. The arrangement of another braking device 109 is possible here too, to prevent unwanted rotation of the drum 93. This braking device 109 too can be formed e.g. by a disc brake which can admit the pressure medium from the accumulator 84.
To supply the control device 101 of the carriage 51 with a control voltage, on the latter is arranged an energy source llo, e.g. a rechargeable battery. The energy supply of the carriage 51 is however also alternative with a towing cable which is connected to an energy supply device of the tool carrier 6. In case of use of rechargeable batteries, it is also possible to provide, in the region of the terminal position of the carriage 51, in particular on the head carrier 16 of the mast 10, a point of attachment via which recharging of energy can be performed in - 2174~1 downtimes.
In Fig. 5 is shown another construction of the transport device 1. In this, at a distance from the tool carrier 6 two guide rollers 112, 113 independent of each other are anchored at a greater distance from each other, e.g. to trees 33. Between the tool carrier 6 and the guide rollers 112, 113 runs the endlessly rotating drive chain 46. Between the tool carrier 6 and the guide roller 112 or the guide roller 113 runs in each case, more or less parallel to the course of the drive chain 46, a supporting element 114, 115 which is mounted in mounting assemblies 116 on a bracket 117 for the guide rollers 112, 113. From this bracket 117 also leads, approximately in the direction of the supporting element, an anchor cable 54 provided with the damping element 55, to a fixed point or anchor point in the ground. On each of the supporting elements 114, 115, which in their course form a conveying region, one of the carriages 51, 52 is arranged movably via the rollers 50 and can be positioned on the drive chain 46.
With this construction, due to the spaced-apart arrangement of the guide rollers 112, 113 arranged opposite the tool carrier 6 and the possibility of lateral deflection of the load means 94 for picking up the load 2, a correspondingly large total region can be covered with respect to transport.
In Figs. 6 and 7 is shown another variant of the transport device 1. The tool carrier 6 with this construction comprises a mast assembly 118 consisting of several parts, in which the mast 10 at the mast head 15 comprises a crossbeam 119 with hinged assembly 120, in which swing-out arms 121 are coupled. Preferably a length of the arm 121, which is e.g. of telescopic construction, is hydraulically adjustable. At their ends 122 opposite the hinged assembly 120 are arranged poles 124 which are pivotable relative to the arm 121 by additional hinged assemblies 123 and constructed for example as telescopic cylinders 125 hydraulically adjustable in length. More or - ` 2174351 less in the region of the hinged assembly 123, the anchor cables 54 are attached to the poles 124 in order to support or anchor them at fixed points in the ground against the action of tensile force caused by the supporting element 42 and the drive chain. In this case the anchor cables 54 comprise the damping elements 55 which damp load shocks which occur during operation of the transport device 1.
As already described in the above statements, at a distance from the poles 124 the brackets 117 with the guide rollers 112, 113 are anchored to suitable support devices in the ground to form the endless run of the drive chain 46 between the tool carrier 6 with the mast assembly 118. To guide the chain, also provided in the region of the hinged assemblies 123 are guide rollers both for the supporting element 42 and for the drive chain 46.
With this arrangement of the transport device 1 are also provided, as already described in the preceding figures, at least two carriages 51, 52. Due to the construction of the mast assembly 118 with the arms 121 and the poles 124 and the spaced-apart guide rollers 112, 113, a large area can be covered with respect to transport with the transport device 1.
Due to the multi-part construction of the mast assembly 118 with the arms 121 and the poles 124 and the hinged assemblies, space-saving collapse is possible when transporting the tool carrier 6 between different transport locations.
In Fig. 8 is shown the damping element 55 for the anchor cables 54. This comprises a tubular housing 126 which is connected at one end 127 by a cover portion 129 welded to a tube wall 128. Concentrically with a longitudinal centre axis 130, the cover portion 129 comprises a bore 131. At one end 132 opposite the cover portion 129 is arranged a bottom portion 133 which is releasably connected to the housing 126 and screwed, for example with a threaded journal 134, into an internal thread 135 of the housing 126. A mounting plate 136 with -~17~3~
a bore 137 for receiving a cable loop 138 is attached, for example by welding, to the bottom portion 133 on the side facing away from the threaded journal 134. Through the cover portion 129 in the bore 131 passes a stay 139 which, at one end 140 facing away from the housing 126, forms a mounting eye 141 for a cable loop 142. The stay 139 is provided with an external thread 145 at its other end 144 opposite the mounting eye 141 and arranged in an interior 143 of the housing 126. Between the cover portion 129 and a mounting nut 146, which is provided on the external thread 145 of the stay 139, is arranged a compression spring element 147. This compression spring element 147 is for example formed by an assembly of cup springs 148. But of course construction of the compression spring element 147 as a helical compression spring, elastically deformable damping body, etc. is possible too.
It is also possible according to the invention to arrange on the tool carrier 6 an energy generating system, e.g. an internal combustion engine, with a hydraulic system coupled thereto and/or a generator. Further it would also be possible to supply the transport device 1 with the energy for operation from another energy source, e.g. from a public network, emergency power unit, etc.
Further it is possible for at least one support element 7 of the support assembly to be arranged as a central pole on the tool carrier 6, in which the line of application of the supporting force passes through the centre of gravity of the tool carrier 6.
It is also conceivable that the mast 10 is arranged on an additional supporting plate which is pivotable relative to the platform 9 of the tool carrier 6 about an axis extending in a direction perpendicular to the stand surface 4.
Further, the mast 10 can be constructed as a multi-part mast assembly 118 which in the erected state forms three poles 124 which extend more or less vertically to the stand surface 4 and are connected in end regions facing -21743Sl ` 18 away from the stand surface 4 by arms 121 extending more or less parallel to the stand surface 4.
It is pointed out that sometimes disproportionate scales were selected for greater clarity in the drawings.
Naturally the technical details and the components described, in particular fitting of the tool carrier with the chain drive gear, the feed mechanism, the mast assembly, control means and carriages etc. can be modified as desired within the scope of the expert's capability.
Finally the individual constructions shown in Figs. 1, 2; 3, 4; 5; 6, 7; 8 may also form the subject of independent solutions according to the invention. The objects and solutions according to the invention in this respect can be found in the detailed descriptions of these figures.
Claims (37)
1. Transport device for loads, in particular felled trees, with a conveying device arranged on a mobile tool carrier, with a mast arranged adjustably on the tool carrier and a guide device spaced apart from the mast and a supporting element extending between conveying device and guide device, and with a carriage movable thereon by a feed mechanism and comprising a hoisting and lowering device, characterised in that between the conveying device (41) and the guide device (34) is connected a transmission means (45) which can be coupled in force-locking relationship to a drive device of the feed mechanism (48) and the carriage (51, 52) and/or the hoisting and lowering device (53), to form an endlessly rotating run.
2. Transport device according to claim 1, characterised in that more or less parallel to the endlessly rotating run is arranged at least one supporting element (42) which forms two conveying regions extending between the tool carrier (6) and the guide device (34), each with a movable carriage (51, 52).
3. Transport device according to claim 1 or 2, characterised in that each conveying region comprises a supporting element (114, 115) extending between the tool carrier (6) and a mounting assembly (116) of the guide device (34).
4. Transport device according to one or more of claims 1 to 3, characterised in that the transmission means (45) is formed by a drive chain (46), e.g. round link chain, flat link chain, etc.
5. Transport device according to claims 1 to 3, characterised in that the transmission means (45) is formed by a cable provided with driver elements.
6. Transport device according to one or more of claims 1 to 5, characterised in that the drive device of the feed mechanism (48) is formed as chain drive gear (49) for the drive chain (46).
7. Transport device according to one or more of claims 1 to 6, characterised in that the chain drive gear (49) comprises a drive motor (56) to which is coupled a drive wheel (47) arranged rotatably in a plane extending parallel or perpendicularly to a stand surface (4), e.g. a sprocket.
8. Transport device according to one or more of claims 1 to 7, characterised in that the drive motor (56) is formed by an internal combustion engine or electric or hydraulic motor, and between drive motor (56) and drive wheel (47) is arranged a gear mechanism (57), e.g. a change-speed gearbox with clutch or hydraulic converter gear.
9. Transport device according to one or more of claims 1 to 8, characterised in that associated with the drive motor (56) is a device for regulating the speed and/or changing the direction of rotation.
10. Transport device according to one or more of claims 1 to 9, characterised in that between the drive motor (56) and the drive wheel (47) is arranged a gear mechanism for reversing the direction of rotation.
11. Transport device according to one or more of claims 1 to 10, characterised in that on the tool carrier (6) is arranged a braking device for the transmission means (45) or the drive device.
12. Transport device according to one or more of claims 1 to 11, characterised in that on the tool carrier (6) are arranged a transmission means store (59) formed by a reel and a tensioning device formed by a winch (60), and transmission means runs which move towards and away from them extend in a direction tangential to the drive wheel (47).
13. Transport device according to claim 12, characterised in that the outward and inward transmission means runs form with each other an angle of 90°.
14. Transport device according to one or more of claims 1 to 13, characterised in that the carriage (51, 52) and the transmission means (45) are adjustable relative to each other.
15. Transport device according to one or more of claims 1 to 14, characterised in that on the carriage (51, 52) is arranged a hydraulic system with an accumulator (84) and a hydraulic pump (81) conductively connected thereto.
16. Transport device according to one or more of claims 1 to 15, characterised in that a drive for the hydraulic pump (81) is formed by a roller (79) driven by frictional engagement with the supporting element (42).
17. Transport device according to one or more of claims 1 to 16, characterised in that the carriage (51, 52) comprises a control device (101) which is conductively connected to valves (98, 99, 100) of the hydraulic system.
18. Transport device according to one or more of claims 1 to 17, characterised in that on the carriage (51, 52) is arranged an energy source (110), e.g. a rechargeable battery.
19. Transport device according to claim 18, characterised in that on the tool carrier (6) or mast (10) are arranged transmission devices with contact elements which can be coupled to the carriage (51, 52) for energy transmission.
20. Transport device according to one or more of claims 1 to 17, characterised in that the carriage (51, 52) is conductively connected by towing cables to a control device and/or energy source (110) of the tool carrier (6).
21. Transport device according to one or more of claims 1 to 20, characterised in that the control device of the tool carrier (6) and/or the control device (101) of the carriage (51, 52) is connected, in particular connected by radio, to at least one control terminal at a distance therefrom.
22. Transport device according to one or more of claims 1 to 21, characterised in that on the carriage (51, 52) is arranged a hydraulically operated clamping device (97) encompassing the supporting element (42).
23. Transport device according to one or more of claims 1 to 22, characterised in that on the carriage (51, 52) is arranged a hydraulically operated braking assembly (95), e.g. a disc brake, for a guide wheel (88) partially wrapped by the transmission means (45).
24. Transport device according to one or more of claims 1 to 23, characterised in that a drum (93) for a load means (94) of the hoisting and lowering device (53) can be coupled immovably to the guide wheel (88) by a hydraulically operated clutch (92), e.g. claw clutch, plate clutch, etc.
25. Transport device according to one or more of claims 1 to 24, characterised in that at a distance from the tool carrier (6) are arranged several spaced-apart guide devices (34), in particular anchored stationarily relative to a stand surface (4).
26. Transport device according to one or more of claims 1 to 25, characterised in that the guide device (34) is arranged on a supporting device (32) which is anchored stationarily relative to the stand surface (4) and, if occasion arises, adjustable in height.
27. Transport device according to one or more of claims 1 to 26, characterised in that the tool carrier (6) is self-propelled.
28. Transport device according to one or more of claims 1 to 26, characterised in that the tool carrier (6) is constructed as a trailer vehicle.
29. Transport device according to one or more of claims 1 to 28, characterised in that on the tool carrier (6) are arranged motor-driven conveying devices (41) for an auxiliary cable and at least one supporting element (42).
30. Transport device according to one or more of claims 1 to 29, characterised in that on the tool carrier (6) is arranged an energy generating system, e.g. an internal combustion engine with a hydraulic system coupled thereto and/or a generator.
31. Transport device according to one or more of claims 1 to 30, characterised in that the tool carrier (6) can be supported on the stand surface (4) by support elements (7), in particular hydraulic telescopic cylinders (8).
32. Transport device according to one or more of claims 1 to 31, characterised in that at least one support element (7) of the support assembly is arranged as a central pole on the tool carrier (6) of which the line of application of the supporting force passes through the centre of gravity of the tool carrier (6).
33. Transport device according to one or more of claims 1 to 32, characterised in that the mast (10) is constructed as a telescopic mast hydraulically adjustable in height.
34. Transport device according to one or more of claims 1 to 33, characterised in that the mast (10) is arranged on an additional supporting plate pivotable relative to a platform (9) of the tool carrier (6) about an axis extending in a direction perpendicular to the stand surface (4).
35. Transport device according to one or more of claims 1 to 34, characterised in that one end of the mast (10) associated with the platform (9) is mounted thereon pivotably in a pivot bearing assembly (12) about a pivot shaft (13) extending more or less parallel to the stand surface (4).
36. Transport device according to one or more of claims 1 to 35, characterised in that the mast (10) is constructed as a multi-part mast assembly (118) which in the erected state forms three poles (124) which extend more or less vertically to the stand surface (4) and which in end regions facing away from the stand surface (4) are connected by arms (121) extending more or less parallel to the stand surface (4).
37. Transport device according to one or more of claims 1 to 36, characterised in that the mast (10) and/or the mast assembly (118) are provided with anchor devices formed by anchor cables (54), which comprise damping elements (55), in particular spring-loaded shock absorbers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1597/94 | 1994-08-17 | ||
| AT159794A ATA159794A (en) | 1994-08-17 | 1994-08-17 | TRANSPORTATION DEVICE FOR LOADS, IN PARTICULAR FALLED TREES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2174351A1 true CA2174351A1 (en) | 1996-02-22 |
Family
ID=3516861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2174351 Abandoned CA2174351A1 (en) | 1994-08-17 | 1995-08-16 | Device for conveying loads, in particular felled trees |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | ATA159794A (en) |
| AU (1) | AU3156295A (en) |
| CA (1) | CA2174351A1 (en) |
| WO (1) | WO1996004779A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004009401A1 (en) * | 2004-02-24 | 2005-09-15 | Bilfinger Berger Ag | cable crane |
| JP5615151B2 (en) * | 2010-12-10 | 2014-10-29 | 井村 覺 | Forest resource utilization system |
| RU2492630C2 (en) * | 2011-11-17 | 2013-09-20 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Method of cable logging of wood |
| DE102011122121B3 (en) * | 2011-12-22 | 2013-06-27 | Koller Gmbh | Forestry winch |
| ITFI20130050A1 (en) * | 2013-03-08 | 2014-09-09 | Stefania Ferretti | EQUIPMENT FOR RECOVERY OF TRUNKS. |
| CN105347199A (en) * | 2015-11-30 | 2016-02-24 | 国网福建省电力有限公司 | Electric tower sliding conveying slideway positioning device and use method thereof |
| CN106429872A (en) * | 2016-11-17 | 2017-02-22 | 长沙正忠科技发展有限公司 | Movable freight cableway device |
| JP7238865B2 (en) * | 2020-07-28 | 2023-03-14 | トヨタ自動車株式会社 | Collection method and collection system |
| CN114793822B (en) * | 2022-05-25 | 2023-06-02 | 南京林业大学 | A green belt tree planting device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3407942A (en) * | 1967-02-23 | 1968-10-29 | Skagit Corp | Log yarding system |
| NO122931B (en) * | 1970-02-20 | 1971-09-06 | Ludvik Isachsen Mek Verksted A | |
| CA913568A (en) * | 1970-11-30 | 1972-10-31 | A. Stryvoke Ross | Logging system with balloon-supported tail block |
| US3863774A (en) * | 1974-03-18 | 1975-02-04 | Weyerhaeuser Co | Skyline carriage |
| CA1219542A (en) * | 1984-12-27 | 1987-03-24 | National Research Council Of Canada | Log yarding carriage |
| AU582292B2 (en) * | 1987-01-15 | 1989-03-16 | Kozo Hirano | Radio control aerial automatic carrying system |
| AT396223B (en) * | 1988-02-08 | 1993-07-26 | Mm Handels Gewerbe Und Industr | CABLE CRANE VELVET HANGER FOR THE WOOD BACK |
-
1994
- 1994-08-17 AT AT159794A patent/ATA159794A/en not_active Application Discontinuation
-
1995
- 1995-08-16 CA CA 2174351 patent/CA2174351A1/en not_active Abandoned
- 1995-08-16 WO PCT/AT1995/000164 patent/WO1996004779A1/en active Application Filing
- 1995-08-16 AU AU31562/95A patent/AU3156295A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| ATA159794A (en) | 1999-10-15 |
| AU3156295A (en) | 1996-03-07 |
| WO1996004779A1 (en) | 1996-02-22 |
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Legal Events
| Date | Code | Title | Description |
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| FZDE | Dead |