CN114105006B - Jacking crossbeam, climbing frame and tower crane - Google Patents

Abstract

The invention relates to a jacking cross beam, a climbing frame and a tower crane. The jacking crossbeam includes: the lifting beam body is provided with lifting shafts at two ends in a protruding mode, and the lifting shafts are used for being hung in hanging grooves of standard section steps; the middle of the jacking cross beam main body is provided with a mounting seat which is used for connecting a jacking oil cylinder of the climbing frame; two ends of the jacking cross beam main body are provided with bolt slide ways; at least two pin shafts are slidably arranged in the pin slide ways, and the pin shafts are used for outwards sliding out of the anti-drop holes inserted into the standard joint steps. According to the technical scheme, the lifting beam can be matched with the anti-drop holes of different hole sites through different pin shafts, so that the lifting beam can be adapted to standard joint steps with the anti-drop holes of different hole sites, the universality is stronger, and the equipment cost is reduced; meanwhile, in the using process, only the corresponding bolt shaft is required to be operated to extend, complex replacement operation is not required, the use is more convenient, and the lifting joint efficiency of the tower crane is improved.

Description

Jacking crossbeam, climbing frame and tower crane

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a jacking cross beam, a climbing frame and a tower crane.

Background

Tower cranes are one of the common lifting devices in the construction field. When the tower crane is operated in a lifting joint, a lifting shaft of the lifting beam is required to be hung on a stepping structure which is correspondingly arranged, so that the lifting beam and related components thereof are supported, and the lifting operation is facilitated. In order to improve the stability of the fit between the jacking shaft and the stepping structure, a plurality of jacking cross beams with anti-falling structures are provided in the prior art, and anti-falling pins are arranged at the end parts of the jacking cross beams, and correspondingly, anti-falling holes are formed in the stepping structure so as to realize the anti-falling function by utilizing the fit of the anti-falling pins and the anti-falling holes. However, in the above scheme, since the position and the specification of the anti-drop pin are fixed, only one standard knot can be adapted to the same stepping structure in use, a special anti-drop structure is required to be designed for each hole site aiming at the stepping structure of different hole sites, the universality of the anti-drop structure is poor, and various anti-drop structures with different specifications are required to be equipped in operation, so that the operation efficiency of the lifting knot of the tower crane is affected, and the equipment cost is increased.

Disclosure of Invention

In view of the above, the present invention provides a lifting beam, a climbing frame and a tower crane for solving the above technical problems.

The invention provides a jacking crossbeam, comprising: the lifting beam body is provided with lifting shafts at two ends in a protruding mode, and the lifting shafts are used for being hung in hanging grooves of standard section steps; the middle of the jacking cross beam main body is provided with a mounting seat which is used for connecting a jacking oil cylinder of the climbing frame; two ends of the jacking cross beam main body are provided with bolt slide ways; at least two pin shafts are slidably arranged in the pin slide ways, and the pin shafts are used for outwards sliding out of the anti-drop holes inserted into the standard joint steps.

In one possible implementation, the jacking crossbeam further comprises: the fixing plate is provided with a bolt hole and is connected with the end part of the jacking cross beam main body; the pin shaft is used for sliding outwards, penetrating through the pin hole and inserting into the anti-falling hole of the standard joint pedal.

In one possible implementation, the fixing plate is further provided with a jacking shaft hole; the jacking shaft is used for penetrating through the jacking shaft hole and being hung in the hanging groove of the standard joint pedal.

In one possible implementation, the jacking crossbeam further comprises: the limiting plates are arranged opposite to the bolt slide ways and connected with the jacking beam main body, limiting slide grooves which are in one-to-one correspondence with the bolt shafts are arranged on the limiting plates along the extending direction of the jacking beam main body, and the limiting slide grooves are arranged at intervals; each pin shaft is provided with a limiting rod extending along the radial direction, and the limiting rods penetrate through the corresponding limiting sliding grooves and are in sliding fit with the limiting sliding grooves.

In one possible implementation manner, two ends of the limiting chute are provided with clamping grooves extending downwards; the stop lever can cooperate with draw-in groove joint.

In one possible implementation manner, the number of the pin shafts is two, and the number of the limit sliding grooves is two; the jacking crossbeam still includes: the linkage plate is arranged opposite to the bolt slide way and is provided with an arc-shaped linkage slide groove; the limiting rod passes through the corresponding limiting chute and the corresponding linkage chute and is in sliding connection with the linkage plate.

In one possible implementation, the two sides of the linkage plate are respectively connected with a first operation rod and a second operation rod.

In one possible implementation, the number of pin pins is two, and the jacking crossbeam further includes: the linkage plate is arranged opposite to the bolt slide way and is provided with an arc-shaped linkage slide groove; each pin shaft is provided with a limiting rod extending along the radial direction, and the limiting rods penetrate through the linkage sliding grooves and are connected with the linkage plate in a sliding manner; a support column is arranged between the two bolt shafts; the support column is provided with a third operating rod extending along the radial direction, and the third operating rod penetrates through the linkage chute and is in sliding connection with the linkage plate.

The invention also provides a climbing frame, which comprises the jacking cross beam in any one of the above steps.

The invention also provides a tower crane, which comprises the climbing frame in any one of the above steps.

The beneficial effects of the invention are as follows:

the jacking cross beam can be matched with the anti-drop holes of different hole sites through different pin shafts, so that the same jacking cross beam can be used for adapting to standard joint steps with the anti-drop holes of different hole sites, the universality is stronger, and the equipment cost is reduced; in addition, only need during the use operate corresponding bolt axle stretch out can, need not to carry out to complicated change operation, use more convenient, be favorable to improving tower crane's lifting joint efficiency.

Drawings

Fig. 1 is a schematic view of a lifting beam according to an embodiment of the present invention.

FIG. 2 is a diagram showing two standard knots with different holes according to an embodiment of the present invention.

Fig. 3 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 4 is a schematic view of a lifting beam according to an embodiment of the present invention.

Fig. 5 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 6 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 7 is a diagram showing two working states of a bolt shaft of a lifting beam and two standard joint steps with different hole sites according to an embodiment of the present invention.

Fig. 8 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 9 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 10 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 11 is a schematic view of a lifting beam according to an embodiment of the invention.

Fig. 12 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 13 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 14 is a schematic view of a lifting beam according to an embodiment of the present invention.

Fig. 15 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 16 is a schematic view of a lifting beam according to an embodiment of the invention.

Fig. 17 is a schematic diagram illustrating an assembled state of a lifting beam and a standard joint step according to an embodiment of the invention.

Fig. 18 is a schematic view showing a part of a structure of a lifting beam according to an embodiment of the invention.

FIG. 19 is a diagram showing a jacking beam and two standard joint marks with different hole sites according to an embodiment of the present invention.

Fig. 20 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Fig. 21 is a schematic view of a part of a structure of a lifting beam according to an embodiment of the invention.

Reference numerals illustrate:

the lifting beam comprises a lifting beam body, a lifting shaft 101, a mounting seat 102, a bolt slideway 103, a fixing plate 11, a bolt hole 111, a lifting shaft hole 112, a bolt pin 121, a first bolt pin 1211, a second bolt pin 1212, a first 1213 support column 1214, a third operating rod 1215, a mounting groove 122, a limit rod 122, a first limit rod 1221, a second limit rod 1222, a limit plate 123, a limit chute 1231, a first chute 1232, a second chute 1233, a clamping groove 1234, a first clamping groove 1235, a second clamping groove 1236, a linkage plate 124, a linkage chute 1241, a first operating rod 1242, a standard step of a second operating rod 211, an anti-falling hole 2112 and a hanging groove.

Detailed Description

In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back, top, bottom … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following embodiment of the invention provides a jacking cross beam which can be applied to a climbing frame of a tower crane, and has an anti-drop function when the jacking cross beam is connected with a standard section step of the climbing frame.

As shown in fig. 1, the lifting beam 1 includes a lifting beam body 10. In the extending direction of the lifting beam body 10, both ends of the lifting beam body 10 are provided with lifting shafts 101, and the lifting shafts 101 protrude outward from the end surface of the lifting beam body 10, and when the lifting beam body 10 is assembled with the standard joint step 211, the lifting shafts 101 are hung in the hanging grooves 2112 on the standard joint step 211. The two ends of the jacking beam main body 10 are provided with bolt slide ways 103, each bolt slide way 103 is internally provided with at least two bolt shafts 121, and the bolt shafts 121 can slide outwards from the bolt slide ways 103; when the jacking crossbeam body 10 is assembled with the standard joint pedal 211, the pin shaft 121 can be inserted into the anti-falling hole 2111 on the standard joint pedal 211 after outwards sliding out from the pin slide 103, so as to prevent the jacking crossbeam body 10 from falling off from the standard joint pedal 211. The middle position of the jacking beam main body 10 is also provided with a mounting seat 102 for connecting with a jacking cylinder of the climbing frame.

Wherein, the different latch shafts 121 respectively correspond to the anti-drop holes 2111 of different hole sites, for example, two standard joint steps 211 having the anti-drop holes 2111 of different heights shown in fig. 2, when the jacking crossbeam main body 10 is assembled with the different standard joint steps 211, the corresponding latch shafts 121 can be operated to be matched with the anti-drop holes 2111 according to the different hole sites of the anti-drop holes 2111.

It should be noted that the number of the latch shafts 121 in the present embodiment is not limited to the number shown in fig. 1, and may be set according to practical situations, and the number of the latch shafts 121 may be two or more than two.

The jacking crossbeam 1 in this embodiment can adapt to the standard section of having the anticreep hole 2111 of different hole sites and mark time 211, and the commonality is stronger, can be applied to the standard section of different specifications and mark time 211, need not to dispose special anticreep device to every standard section and mark time 211, is favorable to reducing equipment cost, only need during the assembly operate corresponding bolt axle 121 can, simple and convenient is favorable to improving tower crane lifting joint operation's efficiency.

In some embodiments of the invention, as shown in fig. 1 and 3, the lifting beam 1 further comprises a fixing plate 11. The fixing plate 11 is used as a mounting substrate, and the fixing plate 11 is connected with the end part of the jacking beam main body 10; the fixing plate 11 is provided with a pin hole 111, and the pin hole 111 is provided corresponding to the plurality of pin shafts 121. Wherein each latch pin 121 may extend outwardly through the latch pin hole 111 or may be retracted inwardly from the latch pin hole 111.

As shown in fig. 3 and 4, when the jacking beam body 10 is assembled with the standard joint, the end of the jacking beam body 10 is connected with the standard joint step 211 of the standard joint through the jacking shaft 101, the latch hole 111 corresponds to the anti-drop hole 2111 of the standard joint step 211, at this time, the operable latch pin 121 extends from the latch hole 111 to a direction close to the standard joint step 211 and extends into the anti-drop hole 2111, thereby limiting the jacking beam body 10, and effectively improving the stability of the jacking beam body 10 when the jacking operation is performed.

In some embodiments of the present invention, as shown in fig. 3 and 4, the fixing plate 11 is provided with a jacking shaft hole 112, for example, the jacking shaft hole 112 is located above the bolt hole 111, so that when the fixing plate 11 is connected with the jacking beam body 10, the fixing plate 11 can be sleeved on the jacking shaft 101 of the jacking beam body 10 through the jacking shaft hole 112, and the jacking shaft 101 can pass through the jacking shaft hole 112 and be hung in the hanging groove 2112 on the standard joint step 211. In addition, the fixing plate 11 can be limited by lifting up the end surface of the beam body 10 and the standard joint step 211.

In some embodiments of the present invention, as shown in fig. 4 and 5, the lifting beam 1 further includes a limiting plate 123. The limiting plate 123 is positioned on one side of the fixing plate 11 facing the jacking beam main body 10 and is opposite to the bolt slide way 103; the limiting plate 123 is connected with the jacking beam main body 10, and the sliding direction of the limiting plate 123 and the bolt shaft 121 is kept consistent; the limiting plate 123 is provided with a plurality of limiting sliding grooves 1231, the limiting sliding grooves 1231 are all arranged along the extending direction of the jacking cross beam main body 10, and the limiting sliding grooves 1231 are mutually arranged at intervals; each pin shaft 121 corresponds to one limiting chute 1231, so that the limiting chute 1231 and the pin shaft 121 form a one-to-one correspondence. Each pin shaft 121 is provided with a limiting rod 122 extending along the radial direction, and the limiting rods 122 penetrate through the corresponding limiting sliding grooves 1231 and are in sliding fit with the corresponding limiting sliding grooves 1231; the pin shaft 121 is driven to extend or retract by operating the limit lever 122 to slide in the limit chute 1231. The limiting rod 122 can form a clamping fit with the limiting chute 1231 to limit the pin shaft 121, so that the pin shaft 121 can be prevented from loosening or shaking. Specifically, the stop lever 122 may be a pin, a bolt, or other form of component, and the stop lever 122 may be welded, threaded, or otherwise coupled to the latch shaft 121.

Further, as shown in fig. 5, two ends of each limiting chute 1231 are respectively provided with a clamping groove 1234, and the clamping grooves 1234 extend downwards. When the limiting rod 122 slides to the clamping groove 1234 at any end of the limiting chute 1231, the limiting rod 122 can be matched with the clamping groove 1234 in a clamping way, so that the sliding of the limiting rod 122 in the limiting chute 1231 is limited. Wherein, the stop lever 122 can be clamped with the clamping groove 1234 by rotating the stop lever 122, and the clamping can be released by reversely rotating the stop lever 122.

For example, as shown in fig. 6, the plurality of limiting runners 1231 specifically includes a first runner 1232 and a second runner 1233, and the plurality of pin shafts 121 includes a first pin shaft 1211 and a second pin shaft 1212, respectively. Specifically, the first and second sliding grooves 1232 and 1233 are disposed at intervals in the height direction, and the first sliding groove 1232 is located above the second sliding groove 1233; the first pin shaft 1211 is disposed corresponding to the first runner 1232, and the second pin shaft 1212 is disposed corresponding to the second runner 1233.

Wherein, a first limiting rod 1221 is arranged on the side wall of the first plug shaft 1211 facing the limiting plate 123, and the first limiting rod 1221 passes through the first sliding groove 1232 and is in sliding fit with the first sliding groove 1232; the two ends of the first sliding groove 1232 are respectively provided with a first clamping groove 1235 extending downwards, and when the first limiting rod 1221 slides to any one end of the first sliding groove 1232, the first limiting rod 1221 can be in clamping fit with the corresponding first clamping groove 1235 by rotating the first limiting rod 1221, so as to axially limit the first plug pin shaft 1211.

Similarly, a second limiting rod 1222 is disposed on a side wall of the second pin shaft 1212 facing the limiting plate 123, and the second limiting rod 1222 passes through the second sliding groove 1233 and is slidably engaged with the second sliding groove 1233; two ends of the second sliding groove 1233 are respectively provided with a second clamping groove 1236 extending downwards, and when the second limiting rod 1222 slides to any one end of the second sliding groove 1233, the second limiting rod 1222 and the corresponding second clamping groove 1236 can be clamped by rotating the second limiting rod 1222, so that the second pin shaft 1212 is axially limited.

As shown in fig. 6 and 7, when the lifting beam body 10 is assembled to the standard joint, the latch shaft 121 corresponding to the escape-preventing hole 2111 of the standard joint step 211 may be selectively extended and inserted into the escape-preventing hole 2111 to be engaged.

Specifically, as shown in fig. 8, when the first plug shaft 1211 is aligned with the anti-falling hole 2111, by operating the first stop lever 1221 to slide in the first chute 1232, the first plug shaft 1211 is driven to extend from the plug hole 111 (as shown in fig. 8) and extend into the anti-falling hole 2111 to form a locking state, at this time, the first stop lever 1221 slides to the left end of the first chute 1232, so that the first stop lever 1221 can be rotated downward, so that the first stop lever 1221 is engaged with the corresponding first slot 1235 to axially stop the first plug shaft 1211; when the jacking beam main body 10 needs to be disassembled, the first stop lever 1221 can be rotated upwards, the clamping fit between the first stop lever 1221 and the first clamping groove 1235 is released, and then the first stop lever 1221 is operated to slide inwards to drive the first plug pin shaft 1211 to be pulled out from the anti-drop hole 2111, so that the locking state is released.

Similarly, as shown in fig. 9, when the second latch shaft 1212 is aligned with the anti-drop hole 2111, the second latch shaft 1212 is driven to extend out of the latch hole 111 (as shown in fig. 9) and be inserted into the anti-drop hole 2111 by operating the second stop lever 1222 to slide into the end of the second slide slot 1233 close to the standard step 211, and then the second stop lever 1222 is rotated downward to make the second stop lever 1222 engage with the corresponding second slot 1236 in a clamping manner, so as to axially stop the second latch shaft 1212; when the lifting beam body 10 needs to be disassembled, the second limiting rod 1222 can be rotated upwards, the clamping fit between the second limiting rod 1222 and the second clamping groove 1236 is released, and then the second limiting rod 1222 is operated to slide inwards to drive the second latch shaft 1212 to be pulled out from the anti-release hole 2111, so as to release the locking state.

When the jacking beam body 10 is in the unassembled state, the first pin shaft 1211 and the second pin shaft 1212 can be retracted (as shown in fig. 10) by operating the first stop lever 1221 and the second stop lever 1222, at this time, the first stop lever 1221 is located at an end of the first chute 1232 away from the standard joint step 211, and the second stop lever 1222 is located at an end of the second chute 1233 away from the standard joint step 211, so that the first stop lever 1221 and the second stop lever 1222 can be rotated downward, so that the first stop lever 1221 is engaged with the corresponding first slot 1235, and the second stop lever 1222 is engaged with the corresponding second slot 1236, so that the first pin shaft 1211 and the second pin shaft 1212 remain stable.

Further, as shown in fig. 7, the bolt hole 111 is specifically a waist-shaped hole, and is provided in the height direction to fit the escape preventing holes 2111 of different heights. The first pin shaft 1211 and the second pin shaft 1212 are both in a non-circular structure with a non-circular cross section, and one side of the first pin shaft 1211 opposite to the second pin shaft 1212 is located on a plane, so that the shapes of the first pin shaft 1211 and the second pin shaft 1212 are matched with the pin hole 111, and the first pin shaft 1211 and the second pin shaft 1212 can normally rotate in the pin shaft so as to be in clamping fit.

In some embodiments of the present invention, as shown in fig. 11 and 12, the number of the latch shafts 121 and the limiting grooves 1231 is two, and the lifting beam 1 further includes a linkage plate 124. The linkage plate 124 is arranged opposite to the bolt slide way 103, and is specifically positioned at one side of the limiting plate 123 away from the bolt shaft; the linkage plate 124 is provided with an arc-shaped linkage chute 1241, and the limiting rod passes through the linkage chute 1241 and is in sliding connection with the linkage plate 124. The linkage chute 1241 is adapted to the limit chute, for example, the size and shape of the linkage chute 1241 are calculated according to the size parameter design of the limit chute, so that the two latch shafts 121 can generate linkage under the action of the external force and the linkage plate 124, and slide in the linkage chute 1241 respectively. In order to reduce space occupation, the linkage plate 124 may also have an arc structure adapted to the linkage chute 1241.

For example, as shown in fig. 13 and 14, the plurality of pin shafts 121 includes a first pin shaft 1211 and a second pin shaft 1212, and the plurality of limit runners 1231 includes a first runner 1232 and a second runner 1233; a first limiting rod 1221 extending along the radial direction is arranged on the side wall of the first plug pin shaft 1211, and the first limiting rod 1221 passes through the first sliding groove 1232 and is in sliding fit with the first sliding groove 1232; a second limiting rod 1222 extending along the radial direction is arranged on the side wall of the second pin shaft 1212, and the second limiting rod 1222 penetrates through the second sliding groove 1233 and is in sliding fit with the second sliding groove 1233.

When the jacking crossbeam main body 10 is assembled on the standard joint, if the first plug shaft 1211 is aligned with the anti-drop hole 2111 of the standard joint step 211, the first plug shaft 1211 is operated to extend out and insert into the anti-drop hole 2111, at this time, the first stop lever 1221 slides to one end of the first chute 1232 close to the standard joint step 211, and at the same time, the first stop lever 1221 also slides to one end of the first chute 1241; since the end of the second latch shaft 1212 is blocked from being extended by the standard step 211, the second stopper rod 1222 slides toward the other end of the linkage chute 1241 by the linkage plate 124 so that the second latch shaft 1212 is maintained in a state of not being extended outward in the latch hole 111, as shown in fig. 13. Similarly, as shown in fig. 15 and 16, if the second latch shaft 1212 is aligned with the anti-drop hole 2111 of the standard pitch step 211, the second latch shaft 1212 is operated to extend and insert into the anti-drop hole 2111, at this time, the second stopper rod 1222 is slid to one end of the second sliding groove 1233 near the standard pitch step 211, and the second stopper rod 1222 is also slid to one end thereof in the linkage sliding groove 1241; since the end of the first plug shaft 1211 is blocked from being protruded by the standard joint step 211, the first stopper rod 1221 slides toward the other end of the linkage chute 1241 by the linkage plate 124 so that the first plug shaft 1211 is maintained in the state of not being protruded outwardly within the plug hole 111 as shown in fig. 14.

When the jacking beam main body 10 is in the unassembled state, the first pin shaft 1211 may be operated to slide toward the end of the first chute 1232 away from the standard joint step 211, while the second pin shaft 1212 is operated to slide toward the end of the second chute 1233 away from the standard joint step 211, and at this time, the linkage plate 124 is also moved in a direction away from the standard joint step 211 by the driving of the first and second stopper rods 1221 and 1222, and both the first pin shaft 1211 and the second pin shaft 1212 are in the retracted state, as shown in fig. 12.

Further, as shown in fig. 12 and 13, the linkage plate 124 is further provided with a first lever 1242 and a second lever 1243. Specifically, the first operating lever 1242 and the second operating lever 1243 are respectively connected to two sides of the linkage plate 124, and the first operating lever 1242 is located at a side of the linkage chute 1241 where the arc protrudes, and the second operating lever 1243 is located at a side of the linkage chute 1241 where the arc is recessed. The first operation rod 1242 and the second operation rod 1243 are fixedly connected (e.g., welded) to the linkage plate 124, so as to apply an external force to the linkage plate 124, wherein the external force can be applied to the first operation rod 1242 to drive one of the first pin shaft 1211 and the second pin shaft 1212, which is aligned with the anti-drop hole 2111, to extend outwards, or the external force can be applied to the second operation rod 1243 to drive the pin shaft 121 in the extended state to retract inwards from the pin hole 111.

In the use process, no manual judgment is needed to determine which of the anti-drop holes 2111 is aligned with which of the pin shafts 121, only when the jacking beam main body 10 is assembled on the standard joint, a pushing force is applied through the first operation rod 1242, if the first pin shaft 1211 is aligned with the anti-drop hole 2111, the first pin shaft 1211 extends out and is inserted into the anti-drop hole 2111, the second pin shaft 1212 is automatically in a retracted state under the driving of the linkage plate 124, otherwise, if the second pin shaft 1212 is aligned with the anti-drop hole 2111, the second pin shaft 1212 extends out and is inserted into the anti-drop hole 2111, and the first pin shaft 1211 is automatically in a retracted state under the driving of the linkage plate 124. Through jacking crossbeam 1 in this embodiment, can further simplify the operation process of bolt mechanism 12, reduce the degree of difficulty of assembly operation, be favorable to further improving tower crane's lifting joint efficiency.

In some embodiments of the present invention, another implementation of the lifting beam 1 is provided, as shown in fig. 17 and 18, the lifting beam 1 further comprises a linkage plate 124 and a support column 1213. The linkage plate 124 is disposed opposite to the latch slide 103, and an arc-shaped linkage chute 1241 is disposed on the linkage plate 124. The number of the pin shafts 121 is two, and a limiting rod 122 extending along the radial direction is arranged on the side wall of each pin shaft 121, and the limiting rod 122 penetrates through the linkage chute 1241 and is in sliding connection with the linkage plate 124. The support column 1213 is disposed between the two bolt shafts 121, the support column 1213 is disposed along the extending direction of the bolt shafts 121, and a third operation rod 1214 extending in the radial direction is disposed on the sidewall of the support column 1213, and the third operation rod 1214 passes through the linkage chute 1241 and is slidably connected to the linkage plate 124. The third operating rod 1214 may push or pull the linkage plate 124, so that the two limiting rods 122 slide in the linkage chute 1241 under the action of the external force and the linkage plate 124, and further drive the limiting rods 122 to extend outwards or retract inwards.

For example, as shown in fig. 17 to 19, the plurality of pin shafts 121 specifically includes a first pin shaft 1211 and a second pin shaft 1212, and the support column 1213 is located between the first pin shaft 1211 and the second pin shaft 1212; the side wall of the first pin shaft 1211 facing the linkage plate 124 is provided with a first limiting rod 1221 extending along a radial direction, the side wall of the second pin shaft 1212 facing the linkage plate 124 is provided with a second limiting rod 1222 extending along a radial direction, the side wall of the support column 1213 facing the linkage plate 124 is provided with a third operating rod 1214 extending along a radial direction, and the first limiting rod 1221, the second limiting rod 1222 and the third operating rod 1214 pass through the linkage chute 1241 and form sliding connection with the linkage plate 124. The third operation rod 1214 is used for applying an external force to push or pull the linkage plate 124, and when the linkage plate 124 moves under the action of the external force, the first limit rod 1221 and the second limit rod 1222 are driven to move correspondingly, so that the first pin shaft 1211 and the support column 1213 extend outwards from the pin hole 111, or the second pin shaft 1212 and the support column 1213 extend outwards from the pin hole 111.

Further, as shown in fig. 19, the plug hole 111 is a waist-shaped hole and is provided in the height direction; the cross-sectional shapes of the first and second pin shafts 1211 and 1212 are non-circular, and the opposite sides of the first pin shaft 1211 and the second pin shaft 1212 are planar to fit the shape of the pin hole 111. The plane of the first pin shaft 1211 facing the second pin shaft 1212 is provided with a mounting groove 1215, the plane of the second pin shaft 1212 facing the first pin shaft 1211 is also provided with a mounting groove 1215, the two mounting grooves 1215 are correspondingly arranged, the extending directions of the mounting grooves 1215 are the same as the sliding directions of the support columns 1213, and the support columns 1213 are positioned in the two mounting grooves 1215 and can slide relative to the mounting grooves 1215. Because the cross sections of the first pin shaft 1211 and the second pin shaft 1212 are non-circular, the support post 1213 can extend into the anti-drop hole 2111 together when the first pin shaft 1211 or the second pin shaft 1212 extends out and is matched with the anti-drop hole 2111, thereby increasing the cross section area of the entire pin shaft and improving the connection strength.

It will be appreciated that the greater the cross-sectional area of the pin shaft, the greater the force that the tower crane will be required to lift the beam body 10 during crane luffing operations.

When the jacking beam body 10 is assembled on the standard joint, as shown in fig. 19 and 20, the third operating rod 1214 applies an external force to push the support column 1213 to extend outwards, so as to drive the linkage plate 124 to perform corresponding operation, and further make the first limiting rod 1221 and the second limiting rod 1222 slide in the linkage chute 1241 respectively. If the first bolt shaft 1211 is aligned with the anti-falling hole 2111, the first stop lever 1221 slides in a direction approaching to the bolt hole 111 under the driving of the linkage plate 124, drives the first bolt shaft 1211 to extend, and the second stop lever 1222 slides in a direction separating from the bolt hole 111, drives the second bolt shaft 1212 to maintain the retracted state, as shown in fig. 20, and at this time, the first bolt shaft 1211 and the support column 1213 extend into the anti-falling hole 2111 together; if the second latch shaft 1212 is aligned with the anti-release hole 2111, the second stop lever 1222 is driven by the linkage plate 124 to slide in a direction approaching the latch hole 111, to drive the second latch shaft 1212 to extend, and the first stop lever 1221 is driven to slide in a direction away from the latch hole 111, to drive the first latch shaft 1211 to maintain the retracted state, as shown in fig. 18, in which case the second latch shaft 1212 and the support post 1213 extend out of the anti-release hole 2111 together.

When the jacking beam main body 10 is in the non-assembled state, the external force is applied by the third operating rod 1214 to pull the support column 1213 to retract, so that the linkage plate 124 is driven to move correspondingly, and at this time, the pin shaft 121 in the extended state and the support column are also driven by the linkage plate 124 to retract inwards, as shown in the state of fig. 21.

Further, as shown in fig. 19, the cross-section of the support pillar 1213 is rectangular, and correspondingly, the shape of the mounting groove 1215 is adapted to the shape of the support pillar 1213, and is also a rectangular groove, so that, on one hand, the limited space can be fully utilized, and the cross-sectional area of the pin shaft can be increased as much as possible, and on the other hand, the processing can be facilitated. Of course, the cross-sectional shape of the support column 1213 is not limited to the example in the present embodiment, and the cross-sectional shape of the support column 1213 may be a circle or other shape.

It should be noted that, the arrangement manner of the plurality of pin shafts 121 of the lifting beam 1 of the present invention is not limited to the example in the above embodiment, and the plurality of pin shafts 121 may be arranged at intervals in the height direction, may be arranged at intervals in the horizontal direction, or may be arranged at intervals along a certain inclination direction, and may specifically be arranged according to the hole positions of the anti-falling holes 2111 of the standard step 211, so as to meet the requirements of the anti-falling holes 2111 of different hole positions, thereby being capable of adapting to the standard step 211 of different sizes.

In one embodiment of the invention, a climbing frame is provided, which can be applied to a tower crane.

The climbing frame comprises the jacking cross beam 1 in any embodiment, and when the jacking cross beam 1 is assembled with a standard joint, the anti-falling function of the jacking cross beam 1 can be realized by matching the pin shaft 121 with the anti-falling hole 2111 of the standard joint step 211.

The climbing frame in this embodiment also has all the beneficial effects of the jacking crossbeam 1 in any of the above embodiments, and will not be described herein.

In one embodiment of the invention, a tower crane is also provided, which comprises the climbing frame in any embodiment, and can perform lifting joint operation through the climbing frame.

The tower crane in this embodiment also has all the beneficial effects of the climbing frame in any of the above embodiments, and will not be described herein.

The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.

The block diagrams of the devices, apparatuses, devices, systems referred to in the present invention are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.

It should also be noted that in the apparatus and device of the present invention, the components may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features herein.

The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as presently claimed, and is intended to cover all modifications, alternatives, and equivalents falling within the spirit and scope of the invention.

Claims (9)

1. A jacking crossbeam (1), characterized by comprising:

the lifting beam comprises a lifting beam main body (10), wherein lifting shafts (101) are convexly arranged at two ends of the lifting beam main body (10), and the lifting shafts (101) are used for being hung in hanging grooves (2112) of standard joint steps (211);

an installation seat (102) is arranged in the middle of the jacking beam main body (10), and the installation seat (102) is used for being connected with a jacking oil cylinder of the climbing frame;

two ends of the jacking cross beam main body (10) are provided with bolt slide ways (103);

two pin shafts (121) are arranged in the pin slide ways (103) in a sliding mode, and the pin shafts (121) are used for sliding out of anti-falling holes (2111) which are inserted into the standard joint steps (211) outwards; and

a linkage plate (124) arranged opposite to the bolt slide way (103), wherein the linkage plate (124) is provided with an arc-shaped linkage slide way (1241);

each bolt shaft (121) is provided with a limiting rod (122) extending along the radial direction, and the limiting rods (122) penetrate through the linkage sliding grooves (1241) and are in sliding connection with the linkage plates (124).

2. Jacking crossbeam (1) according to claim 1, further comprising:

the fixing plate (11), the bolt hole (111) is formed in the fixing plate (11), and the fixing plate (11) is connected with the end part of the jacking beam main body (10);

the bolt shaft (121) is used for sliding outwards, penetrating through the bolt hole (111) and inserting into the anti-falling hole (2111) of the standard joint step (211).

3. Jacking crossbeam (1) according to claim 2, characterized in that,

the fixed plate (11) is also provided with a jacking shaft hole (112);

the jacking shaft (101) is used for penetrating through the jacking shaft hole (112) and is hung in the hanging groove (2112) of the standard joint step (211).

4. A jacking crossbeam (1) as claimed in any one of claims 1 to 3, further comprising:

the limiting plates (123) are arranged opposite to the bolt slide ways (103), the limiting plates (123) are connected with the jacking beam main body (10), limiting sliding grooves (1231) which are in one-to-one correspondence with the bolt shafts (121) are arranged on the limiting plates (123) along the extending direction of the jacking beam main body (10), and a plurality of limiting sliding grooves (1231) are arranged at intervals;

each bolt shaft (121) is provided with a limiting rod (122) extending along the radial direction, and the limiting rods (122) penetrate through the corresponding limiting sliding grooves (1231) and are in sliding fit with the limiting sliding grooves (1231).

5. Jacking crossbeam (1) according to claim 4, characterized in that,

both ends of the limiting chute (1231) are provided with clamping grooves (1234) which extend downwards;

the limiting rod (122) can be matched with the clamping groove (1234) in a clamping mode.

6. Jacking crossbeam (1) according to claim 5, characterized in that,

the two sides of the linkage plate (124) are respectively connected with a first operation rod (1242) and a second operation rod (1243).

7. A lifting beam (1) according to any one of claims 1 to 3, characterized in that,

a support column (1213) is arranged between the two bolt shafts (121); the support column (1213) is provided with a third operation rod (1214) extending along the radial direction, and the third operation rod (1214) passes through the linkage chute (1241) and is in sliding connection with the linkage plate (124).

8. Climbing frame, characterized by comprising a jacking crossbeam (1) according to any one of claims 1 to 7.

9. A tower crane comprising a climbing frame according to claim 8.