CN117526156A - Crossing construction platform for power transmission line and installation method - Google Patents
Crossing construction platform for power transmission line and installation method Download PDFInfo
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- CN117526156A CN117526156A CN202311429067.2A CN202311429067A CN117526156A CN 117526156 A CN117526156 A CN 117526156A CN 202311429067 A CN202311429067 A CN 202311429067A CN 117526156 A CN117526156 A CN 117526156A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 161
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009434 installation Methods 0.000 title claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 15
- 230000008569 process Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention discloses a crossing construction platform for a power transmission line and an installation method, wherein the crossing construction platform comprises an insulating platform frame, the insulating platform frame comprises a plurality of layers of platform frames, and the length of a longitudinal rod of each platform frame is sequentially increased from top to bottom; the upper layers and the lower layers of the far ends of the multi-layer longitudinal rods far away from the power transmission line are connected through diagonal rods; an insulating spanning frame is connected between the tops of the two insulating platform frames, and a sliding slot is formed in the top surface of the insulating spanning frame; the bottom of the sliding wire groove is provided with a groove, a traction clamp is arranged in the groove, a sliding rail is arranged below the groove, a traction pulley is arranged in the sliding rail, the traction clamp is arranged on the traction pulley, and a plurality of traction pulleys are connected through connecting rods. According to the invention, through improving the structure of the crossing frame, the pulling and paying-off of all the power transmission lines can be performed at one time, the paying-off time is saved, the power transmission lines can be prevented from sliding back and falling down to sequentially extend the outer sides of each layer of frames in pulling, a triangular supporting structure is formed, and the overall stability of the crossing platform can be increased by using less materials.
Description
Technical Field
The invention relates to the technical field of power maintenance safety, in particular to a crossing construction platform for a power transmission line and an installation method.
Background
The distribution lines are generally erected by adopting cement poles, the height from the ground is 8 meters, 10 meters, 12 meters and the like, the number of the lines is large, the range is wide, and the workload of erecting new lines and replacing wires is very large. During construction operations, constructors often face the problem of crossing existing distribution lines due to the crossing of different lines. Construction across existing distribution lines is dangerous and complex, often requiring the creation of a spanning frame on both sides of the existing distribution line, and then performing a pay-off operation from above the spanning frame.
When paying off operation is carried out, an insulating rope is thrown from one side of a power transmission line to the other side, then after the end part of the power transmission line to be spanned is tightly tied with the insulating rope, the rope is pulled on one side so that the power transmission line to be spanned can span the power transmission line from the upper direction of a spanning frame to realize paying off, and as a plurality of power transmission lines needing paying off are needed, the operation of rope tying and pulling needs to be repeated for a plurality of times to finish integral paying off, which is more time-consuming, and meanwhile, in the pulling process of operators, the power transmission line is heavy because of the need of alternately pulling by two hands, the phenomenon of sliding back easily occurs, and the construction efficiency is low.
In addition, the conventional crossing frame structure is a common square frame structure, when the crossing frame structure is erected to a certain height, the situation of poor bottom stability exists, hidden danger is caused to constructors, the crossing frame structure is made into a structure with a small upper part and a large lower part, more materials are required to be additionally consumed, and the cost is increased; moreover, the conventional building mode of the crossing frame is built layer by layer from bottom to top at present, construction staff is required to continuously climb upwards to operate, a plurality of cooperation staff are required to transfer materials, the construction staff is long in working time of high-altitude construction, the danger is high, and the labor cost investment is relatively high.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a spanning construction platform and a mounting method for a power transmission line, which can pull and pay off all the power transmission lines at one time by improving the structure of the spanning frame, greatly save paying-off time and avoid the condition that the power transmission line slides back due to dead weight in the pulling process; in addition, the outer sides of the frames of each layer are sequentially prolonged from top to bottom to form a triangular supporting structure, so that the stability of each layer is improved layer by layer, excessive consumable materials are not additionally added, and the overall stability of the crossing platform can be improved by using less materials through ingenious structural design; meanwhile, the invention adopts a mode that the upper layer is sequentially arranged downwards, so that constructors can always install on the ground, the construction safety is greatly improved, and additional personnel are not required to transmit materials.
The invention is realized by the following technical scheme:
the crossing construction platform for the power transmission line comprises insulating platform frames arranged on two sides of the crossing power transmission line, wherein the insulating platform frames comprise a plurality of layers of platform frames which are sequentially arranged from top to bottom, and the length of a longitudinal rod, perpendicular to the power transmission line, at the bottom of each platform frame is sequentially increased from top to bottom;
the multi-layer longitudinal rods are arranged at the same level near the near end of the power transmission line, the upper layer and the lower layer of the far end of the multi-layer longitudinal rods far away from the power transmission line are connected through inclined rods, vertical rods are further vertically connected between the far end of the upper layer longitudinal rods and the lower layer longitudinal rods, the incremental length is 1/6-1/7 of the length of the uppermost layer longitudinal rods, and the incremental length is 1/15-1/17 of the length of the vertical rods;
an arched insulating spanning frame is connected between the tops of the two insulating platform frames, a plurality of sliding wire grooves are arranged on the top surfaces of the insulating spanning frames side by side, and two ends of each sliding wire groove are of an S-shaped structure;
the bottom of the sliding groove is provided with a slot penetrating through the bottom of the insulating crossing frame, a traction clamp is arranged in the slot, the bottom of the insulating crossing frame below the slot is provided with a sliding rail with a matched shape, a traction pulley is arranged in the sliding rail, the traction clamp is arranged on the traction pulley, and the traction pulleys below the sliding grooves are fixedly connected through a connecting rod.
According to the invention, through improving the structure of the crossing frame, the pulling paying-off of all the power transmission lines can be performed at one time, so that the paying-off time is greatly saved, and the situation that the power transmission lines slide back due to dead weight in the pulling process can be avoided; in addition, through the outside to every layer of frame from last to lower extension in proper order, form triangular bearing structure, not only increased the stability of every layer by layer, also can not additionally increase too much consumptive material, through ingenious structural design, can utilize less material to increase and stride across the holistic stability of platform.
Specifically, the insulating platform frame disclosed by the invention has the advantages that the longitudinal rods of each layer of platform frame are increased by a proper length, so that each layer of platform frame is in a right trapezoid structure, namely, the insulating platform frame is in a structure which is gradually increased from top to bottom, and the overall stability is improved; the incremental length of each layer of longitudinal rods is 1/6-1/7 of the length of the uppermost layer of longitudinal rods and is 1/15-1/17 of the length of the vertical rods, so that the inclination of the inclined rods is kept to be capable of providing good stable support for the weight of the upper layer, the additional length of the inclined rods and the longitudinal rods can be reduced as much as possible, and meanwhile the condition that the floor area of the bottommost layer is overlarge can be avoided.
The arc-shaped insulating spanning frame is connected between the tops of the two insulating platform frames, and the insulating spanning frame plays a role in supporting a power transmission line when paying off. When the insulating spanning frame is used for paying off operation, an operator stands on the insulating platform frame at one side, sequentially clamps the end parts of the power transmission lines needing paying off in sequence in the traction clamp of each sliding wire groove, then a traction rope is reserved on the connecting rod in advance, and the operator synchronously moves along the sliding rail on the insulating platform frame at the other side through pulling the traction rope under the action of the connecting rod, so that the end parts of the power transmission lines are driven to synchronously move from one end to the other end of the insulating spanning frame along the sliding wire grooves; wherein, the power transmission line slides in the slide groove, and its both ends are S type structure, can avoid operating personnel to slide back at the moment of unloading power transmission line, and insulating span structure is arch structure wholly simultaneously, and the power transmission line is also supported to be arch in the unwrapping wire in-process promptly, can further avoid the power transmission line to slide back, and simultaneously when carrying out the power transmission line and pull, because insulating span structure is the cambered surface, compare flat plate type structure, the resistance of insulating frame tip to the power transmission line is littleer, can help the unwrapping wire operation more, and is more laborsaving.
In a certain implementation mode, in order to further facilitate crossing paying off of the transmission line, a plurality of groups of traction clamps and traction pulley structures are arranged in each sliding groove, two ends of each sliding rail are enclosed to form a circular rail through an extension rail, a rotating shaft parallel to the crossed transmission line is arranged at the center of the circular rail, a plurality of driving rods are vertically connected to the rotating shaft along the circumferential direction, the end parts of the driving rods are respectively connected with a plurality of connecting rods, each traction clamp comprises two clamping plates which are arranged in parallel, and a bidirectional overturning plate is arranged at the upper end of each clamping plate.
When the wire paying-off operation is required, the end parts of the transmission line are respectively arranged on the traction clamps of the transmission structure positioned at the most end parts of the insulation spanning frame, the traction ropes are wound on the rotating shaft, an operator pulls the traction ropes at the other end to drive the rotating shaft to rotate, the most end transmission structure moves along the sliding rail, other vacant transmission structures move on the sliding rail together, when the vacant transmission structure moves from bottom to top to the end parts of the insulation spanning frame, the transmission line can be clamped between the two clamping plates under the pulling force transmitted by the rotating shaft so as to be sequentially transmitted under the driving of the traction pulleys, when the transmission structure clamping the transmission line moves from top to bottom to the other end part of the insulation spanning frame, the transmission line continues to move downwards along the sliding rail, and can be pulled up from the two clamping plates under the pulling force transmitted by the rotating shaft until the transmission line is pulled up from the two clamping plates to the proper length, and the wire paying-off operation can be completed after the whole wire paying-off operation is repeated. According to the structure, the rotating shaft can be driven to rotate by pulling one traction rope, continuous conveying of a plurality of power transmission lines can be realized until paying-off operation is completed, operators do not need to pull the power transmission lines in the whole process, the operation is more convenient and rapid, meanwhile, the whole power transmission lines are clamped through the transmission structure and then the pulleys move to drive the power transmission lines to convey, relative friction is not generated between the power transmission lines and the transmission structure, and damage to the surface of the power transmission lines due to friction generated by sliding between the power transmission lines and the sliding grooves can be avoided.
In a certain embodiment, the pivot sets up the multirow actuating lever along circumferencial direction, lies in the equal perpendicular connection of actuating lever of same row on same connecting rod, is connected through many actuating levers between pivot and the every transmission structure of group promptly, and the connecting rod atress is more even for the pulling of power transmission line is laborsaving more.
In a certain embodiment, be provided with the antiskid sheet that inclines to transmission line direction of delivery to set up on the lateral wall of sliding wire groove S type structure department, antiskid sheet can adopt the rubber film, and when operating personnel unloads the power in the pulling, antiskid sheet can provide the reverse frictional force of power transmission line in order to avoid its back to slide, and in its forward motion, because its angle of setting can not produce the resistance to the power transmission line.
In a certain implementation mode, the wire clamping plate is arranged above the wire sliding groove and can rotate upwards around one end, the two-way wire clamping plate can prevent the power transmission line from sliding out of the top of the wire sliding groove, the limiting effect is achieved, after the wire releasing is finished, the wire clamping plate is pulled upwards to be turned upwards, the wire sliding groove can be separated from the wire sliding groove to be pulled out, and the separation operation between the power transmission line and the crossing frame is facilitated.
In a certain implementation mode, two reinforcing rods are connected between the inclined rods and the bottom ends of the adjacent vertical rods, and the end parts of the two reinforcing rods are respectively connected at 1/3 part and 3/4 part of the inclined rods, so that the supporting stability of the inclined rods is further improved, and the integral stability of the insulating platform frame is ensured.
In a certain embodiment, still be connected with fixed knot between two insulating platform frames and construct, connect into overall structure through fixed knot between two insulating platform frames, overall structure is isosceles trapezoid structure from macroscopic view, and stability is better.
In a certain embodiment, the anti-abrasion soft layer is covered on the inner wall of the clamping plate, so that the clamping force on the power transmission line can be improved, and the abrasion to the outer wall of the clamping plate can be avoided.
The invention also provides an installation method for the transmission line crossing construction platform, which comprises the following steps:
firstly, a vertical flat plate is installed on a ground power transmission line, the bottom of the flat plate is fixed on the ground through a base, vertical guide rails are installed on the side walls of two sides of the flat plate, and a fixing clamp is installed on each guide rail;
selecting a cross bar, a longitudinal bar and a vertical bar according to the size of the uppermost platform frame of the insulating platform frame, and mounting and forming;
connecting a vertical rod of the uppermost platform frame close to one side of the flat plate with a fixed clamp of the guide rail, respectively arranging hydraulic devices below a bottom cross rod and the vertical rod of the platform frame, and lifting the platform frame by the hydraulic devices;
the method comprises the steps of sequentially installing a vertical rod, a longitudinal rod, a cross rod and an inclined rod of a second-layer platform frame, loosening a fixing clamp and an upper-layer platform frame after the installation, enabling the fixing clamp to move downwards and then be connected with the vertical rod of a lower-layer platform frame, and then respectively arranging a hydraulic device below the cross rod and the longitudinal rod at the bottom of the lower-layer platform frame to lift the double-layer platform frame;
repeating the steps to finish the installation of the insulating platforms on the two sides of the power transmission line;
and (3) hanging the insulating crossing frame above the power transmission line by using a crane, and then respectively installing the two ends of the insulating crossing frame on the insulating platform frames at the two sides to finish the installation of the crossing construction platform.
The invention adopts a mode that the upper layer is sequentially arranged downwards, constructors can always install on the ground, the construction safety is greatly improved, and additional personnel are not required to transmit materials; compared with the traditional mode of building up layer by layer from the bottom layer, the invention has higher safety, constructors do not need to operate at high altitude for a long time, do not need to climb up and down to perform construction, the whole installation process can be performed on the ground, and the installation efficiency is higher.
In one embodiment, the multi-layer platform frames of the insulating platform frames on two sides of the flat plate are alternately installed, so that the stress balance on two sides of the flat plate can be kept.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the crossing construction platform for the power transmission line, provided by the embodiment of the invention, through improving the structure of the crossing frame, the pulling and paying-off of all the power transmission lines can be performed at one time, so that the paying-off time is greatly saved, and the condition that the power transmission line slides back due to dead weight in the pulling process can be avoided;
2. according to the crossing construction platform for the power transmission line, provided by the embodiment of the invention, through improving the structure of the crossing frame, a traction rope is pulled to drive a rotating shaft to rotate, and meanwhile, continuous conveying of a plurality of power transmission lines is realized until paying-off operation is finished, operators do not need to drag the power transmission lines in the whole process, the operation is more convenient and rapid, meanwhile, the whole power transmission line is clamped through a transmission structure and then a pulley moves to drive the power transmission lines to convey, no relative friction exists between the power transmission lines and the transmission structure, and the damage to the surface of the power transmission lines due to friction generated by sliding between the power transmission lines and a sliding groove can be avoided;
3. according to the crossing construction platform for the power transmission line, provided by the embodiment of the invention, the outer sides of each layer of frames are sequentially prolonged from top to bottom to form the triangular supporting structure, so that the stability of each layer is increased layer by layer, excessive consumable materials are not additionally added, and the overall stability of the crossing platform can be increased by using fewer materials through ingenious structural design;
4. according to the spanning construction platform and the installation method for the power transmission line, which are provided by the embodiment of the invention, by adopting a mode that the upper layer is sequentially installed to the lower layer, constructors can always install on the ground, so that the construction safety is greatly improved, and additional personnel are not required to transmit materials; compared with the traditional mode of building up layer by layer from the bottom layer, the invention has higher safety, constructors do not need to operate at high altitude for a long time, do not need to climb up and down to perform construction, the whole installation process can be performed on the ground, and the installation efficiency is higher.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a cross platform structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an insulating spanning frame according to an embodiment of the present invention;
FIG. 3 is a top plan view of an insulating bridge according to an embodiment of the present invention;
FIG. 4 is a schematic side view of an insulating spanning frame according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a transmission structure according to an embodiment of the present invention.
Reference numerals and corresponding part names:
the device comprises a 1-insulating platform frame, a 2-platform frame, a 3-longitudinal rod, a 4-diagonal rod, a 5-vertical rod, a 6-insulating spanning frame, a 7-sliding wire groove, an 8-clamping plate, a 9-slotting, a 10-traction clamp, an 11-traction pulley, a 12-antiskid sheet, a 13-wire clamping plate, a 14-reinforcing rod, a 15-sliding rail, a 16-rotating shaft, a 17-driving rod, an 18-bidirectional turnover plate, a 19-connecting rod and a 20-flat plate.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the invention. In other instances, well-known structures have not been described in detail in order to avoid obscuring the present invention.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
Example 1
As shown in fig. 1-5, an embodiment of the present invention provides a spanning construction platform for a power transmission line, including an insulation platform frame 1 disposed on two sides of the spanning power transmission line, where the insulation platform frame 1 includes a plurality of layers of platform frames 2 sequentially disposed from top to bottom, and the length of a vertical rod 3 perpendicular to the power transmission line at the bottom of the platform frames 2 sequentially increases from top to bottom;
the multi-layer longitudinal rods 3 are arranged near the near end of the power transmission line in a flush way, the upper layers and the lower layers of the far ends of the multi-layer longitudinal rods 3 far away from the power transmission line are connected through inclined rods 4, vertical rods 5 are further vertically connected between the far ends of the upper-layer longitudinal rods 3 and the lower-layer longitudinal rods 3, the incremental length is 1/6-1/7 of the length of the uppermost-layer longitudinal rods 3, and is 1/15-1/17 of the length of the vertical rods 5;
an arched insulating spanning frame 6 is connected between the tops of the two insulating platform frames 1, a plurality of sliding wire grooves 7 are formed in parallel on the top surface of the insulating spanning frame 6, and two ends of the sliding wire grooves 7 are of an S-shaped structure;
the bottom of the sliding wire groove 7 is provided with a slot 9 penetrating through the bottom of the insulating spanning frame 6, a traction clamp 10 is arranged in the slot 9, a sliding rail with a matched shape is arranged at the bottom of the insulating spanning frame 6 below the slot 9, a traction pulley 11 is arranged in the sliding rail, the traction clamp 10 is arranged on the traction pulley 11, and the traction pulleys 11 below the plurality of sliding wire grooves 7 are fixedly connected through a connecting rod 19.
According to the invention, through improving the structure of the crossing frame, the pulling paying-off of all the power transmission lines can be performed at one time, so that the paying-off time is greatly saved, and the situation that the power transmission lines slide back due to dead weight in the pulling process can be avoided; in addition, through the outside to every layer of frame from last to lower extension in proper order, form triangular bearing structure, not only increased the stability of every layer by layer, also can not additionally increase too much consumptive material, through ingenious structural design, can utilize less material to increase and stride across the holistic stability of platform.
Specifically, according to the insulating platform frame 1 disclosed by the invention, the longitudinal rods 3 of each layer of platform frame 2 are increased by a proper length, so that each layer of platform frame 2 is in a right trapezoid structure, namely the insulating platform frame 1 is in a structure of gradually increasing from top to bottom, and the overall stability is improved; the incremental length of each layer of longitudinal rods is 1/6-1/7 of the length of the uppermost layer of longitudinal rods 3, and is 1/15-1/17 of the length of the vertical rods 5, so that the inclination of the inclined rods is kept to provide good stable support for the weight of the upper layer, the additional length of the inclined rods and the longitudinal rods can be reduced as much as possible, and meanwhile, the condition that the floor area of the bottommost layer is overlarge can be avoided.
The invention connects with the arched insulating spanning frame 6 between the top of two insulating platform frames 1, the insulating spanning frame acts as the supporting power line when paying out. When the insulating spanning frame is used for paying off operation, an operator stands on an insulating platform frame at one side, sequentially clamps the end parts of the power transmission lines needing paying off in sequence in the traction clamp 10 of each sliding wire groove 7, then a traction rope is reserved on a connecting rod in advance, the operator synchronously moves along the sliding rail on the insulating platform frame at the other side through the traction rope, under the action of the connecting rod, the traction pulleys 11 in the plurality of sliding wire grooves 7 drive the end parts of the power transmission lines to synchronously move from one end to the other end of the insulating spanning frame along the sliding wire grooves, when the end parts of the power transmission lines move to the other end of the insulating spanning frame, the power transmission lines can be taken down from the traction clamp 10, then the operator manually pulls the power transmission lines to carry out subsequent traction, and the end part spanning paying off of all the power transmission lines can be completed at one time through the structure; wherein, the power transmission line slides in slide wire groove 7, and its both ends are S type structure, can avoid operating personnel to slide back at the moment of unloading power transmission line, and insulating span structure 6 is the arch structure entirely simultaneously, and the power transmission line is also supported to be the arch in the unwrapping wire in-process promptly, can further avoid the power transmission line to slide back, and simultaneously when carrying out the power transmission line and pull, because insulating span structure 6 is the cambered surface, compared with the flat-plate type structure, the resistance of insulating frame tip to the power transmission line is littleer, can help the unwrapping wire operation more, and is more laborsaving.
In a certain embodiment, in order to further facilitate the crossing paying-off of the transmission line, a plurality of groups of traction clamps 10 and traction pulley 11 structures are arranged in each sliding wire groove 7, two ends of each sliding rail 15 are enclosed to form a circular rail through extension rails, a rotating shaft 16 parallel to the crossed transmission line is arranged at the center of the circular rail, a plurality of driving rods 17 are vertically connected to the rotating shaft 16 along the circumferential direction, the end parts of the driving rods 17 are respectively connected with a plurality of connecting rods, each traction clamp 10 comprises two clamping plates 8 which are arranged in parallel, and a bidirectional overturning plate 18 is arranged at the upper end of each clamping plate 8.
When the insulating spanning frame works, the insulating spanning frame 6 is in a semicircular structure, the sliding rail 15 is in a circular structure, the transmission structures consisting of the connecting rod 19, the traction clamp 10 and the traction pulley 11 are uniformly distributed on the whole circular sliding rail 15, when paying-off operation is needed, the end parts of the transmission lines are respectively arranged on the traction clamps of the transmission structures positioned at the most end parts of the insulating spanning frame 6, the traction ropes are wound on the rotating shaft 16, an operator pulls the traction ropes at the other end, so that the rotating shaft 16 is driven to rotate, the most end transmission structures move along the sliding rail, other spare transmission structures move on the sliding rail together, when the spare transmission structures move from bottom to top to the end parts of the insulating spanning frame 6, the transmission line can push down two-way turnover plate 18 card and go into between two splint 8 under the pulling force of pivot transmission to thereby transmit in proper order under traction pulley 11's drive, when the transmission structure of centre gripping transmission line from last down to the other end of insulating span-ing frame 6, transmission structure continues along the slide rail down motion, and the transmission line is output from insulating span-ing frame 6 tip, the transmission line can pull up two-way turnover plate 18 and deviate from two splint under the pulling force of pivot transmission this moment, repeat this operation until the transmission line unwrapping wire is to suitable length after, wholly upwards pull the transmission line, can make the transmission line deviate from in the draw-wire groove, accomplish unwrapping wire operation. According to the structure, the rotating shaft can be driven to rotate by pulling one traction rope, continuous conveying of a plurality of power transmission lines can be realized until paying-off operation is completed, operators do not need to pull the power transmission lines in the whole process, the operation is more convenient and rapid, meanwhile, the whole power transmission lines are clamped through the transmission structure and then the pulleys move to drive the power transmission lines to convey, relative friction is not generated between the power transmission lines and the transmission structure, and damage to the surface of the power transmission lines due to friction generated by sliding between the power transmission lines and the sliding grooves can be avoided.
In a certain embodiment, the rotating shaft 16 is provided with a plurality of rows of driving rods 17 along the circumferential direction, the driving rods 17 in the same row are vertically connected to the same connecting rod 19, namely, the rotating shaft is connected with each group of transmission structures through a plurality of driving rods, the stress of the connecting rods is more uniform, and the power transmission line is more labor-saving to pull.
In a certain embodiment, the side wall of the S-shaped structure of the sliding wire groove 7 is provided with a non-slip sheet 12 inclined towards the transmission direction of the transmission line, the non-slip sheet can be made of a rubber film, when an operator unloads force in pulling, the non-slip sheet can provide reverse friction force of the transmission line to avoid the reverse sliding of the transmission line, and in the forward movement of the non-slip sheet, the transmission line cannot be resistant due to the setting angle of the non-slip sheet.
In a certain implementation mode, the wire clamping plate 13 is arranged above the wire sliding groove 7, the wire clamping plate 13 can rotate upwards around one end, the two-way wire clamping plate can prevent the power transmission line from sliding out of the upper side of the wire sliding groove 7, the limiting effect is achieved, after the wire releasing is finished, the wire clamping plate is pulled upwards to be turned upwards, and the wire clamping plate can be pulled out of the wire sliding groove to be conveniently separated from the crossing frame.
In a certain embodiment, two reinforcing rods 14 are connected between the inclined rod 4 and the bottom ends of the adjacent vertical rods 5, and the ends of the two reinforcing rods 14 are respectively connected at 1/3 and 3/4 of the inclined rod 4, so that the supporting stability of the inclined rod is further improved, and the overall stability of the insulating platform frame is ensured.
In a certain embodiment, a fixed structure is further connected between the two insulating platform frames 1, the two insulating platform frames 1 are connected into an integral structure through the fixed structure, and the integral structure is of an isosceles trapezoid structure from a macroscopic view, so that the stability is better.
In one embodiment, the inner wall of the clamping plate 17 is covered with a wear-resistant soft layer, so that not only can the clamping force on the power transmission line be improved, but also the outer wall of the clamping plate can be prevented from being worn.
Example 2
The embodiment of the invention provides an installation method for a transmission line crossing construction platform, which comprises the following steps:
(1) Firstly, a vertical flat plate is installed on a ground power transmission line, the bottom of the flat plate is fixed on the ground through a base, vertical guide rails are installed on the side walls of two sides of the flat plate, and a fixing clamp is installed on each guide rail;
(2) Selecting a cross rod, a longitudinal rod and a vertical rod according to the size of the uppermost platform frame 2 of the insulating platform frame 1, and mounting and forming;
(3) Connecting a vertical rod of the uppermost platform frame 2 close to one side of the flat plate with a fixed clamp of a guide rail, respectively arranging hydraulic devices below a bottom cross rod and a vertical rod of the platform frame 2, and lifting the platform frame 2 by the hydraulic devices;
(4) The vertical rod, the longitudinal rod, the cross rod and the inclined rod of the second-layer platform frame 2 are sequentially installed, after the installation is finished, the fixing clamp is loosened from the upper-layer platform frame 2, the fixing clamp moves downwards and is then connected with the vertical rod of the lower-layer platform frame 2, and then the hydraulic device is respectively arranged below the cross rod and the longitudinal rod at the bottom of the lower-layer platform frame 2 to lift the double-layer platform frame 2;
(5) Repeating the steps to finish the installation of the insulating platform frames 1 on the two sides of the power transmission line;
(6) And (3) hoisting the insulating spanning frame 6 to the upper part of the transmission line by using a crane, and then respectively installing two ends on the insulating platform frames 1 on two sides to finish the installation of the spanning construction platform.
The invention adopts a mode that the upper layer is sequentially arranged downwards, constructors can always install on the ground, the construction safety is greatly improved, and additional personnel are not required to transmit materials; compared with the traditional mode of building up layer by layer from the bottom layer, the invention has higher safety, constructors do not need to operate at high altitude for a long time, do not need to climb up and down to perform construction, the whole installation process can be performed on the ground, and the installation efficiency is higher.
In one embodiment, the multi-layered platform frames 2 of the insulating platform frames 1 on both sides of the flat plate 20 are alternately installed, so that the stress balance on both sides of the flat plate can be maintained.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The crossing construction platform for the power transmission line is characterized by comprising insulating platform frames (1) arranged on two sides of the crossing power transmission line, wherein each insulating platform frame (1) comprises a plurality of layers of platform frames (2) which are sequentially arranged from top to bottom, and the lengths of longitudinal rods (3) at the bottoms of the platform frames (2) and vertical to the power transmission line are sequentially increased from top to bottom;
the multi-layer longitudinal rods (3) are arranged near the near end of the power transmission line in a flush way, the upper layers and the lower layers of the far ends of the multi-layer longitudinal rods (3) far away from the power transmission line are connected through inclined rods (4), vertical rods (5) are further vertically connected between the far ends of the upper-layer longitudinal rods (3) and the lower-layer longitudinal rods (3), the incremental length is 1/6-1/7 of the length of the uppermost-layer longitudinal rods (3), and is 1/15-1/17 of the length of the vertical rods (5);
an arched insulating spanning frame (6) is connected between the tops of the two insulating platform frames (1), a plurality of sliding wire grooves (7) are formed in parallel on the top surface of the insulating spanning frame (6), and two ends of the sliding wire grooves (7) are of an S-shaped structure;
the utility model discloses a cable drawing machine, including insulating crossing frame (6), draw wire groove (7), fluting (9) are offered to the bottom of running through insulating crossing frame (6), be provided with draw clamp (10) in fluting (9), insulating crossing frame (6) bottom below fluting (9) is provided with shape assorted slide rail (15), is provided with traction pulley (11) in the slide rail, draw clamp (10) install on traction pulley (11), link to each other through connecting rod (19) are fixed between traction pulley (11) of a plurality of slot (7) below.
2. The crossing construction platform for the power transmission line according to claim 1, wherein a plurality of groups of traction clamps (10) and traction pulley (11) structures are arranged in each sliding wire groove (7), two ends of each sliding rail (15) are enclosed to form a circular rail through extension rails, a rotating shaft (16) parallel to the crossed power transmission line is arranged at the center of the circular rail, a plurality of driving rods (17) are vertically connected to the rotating shaft (16) along the circumferential direction, the end parts of the driving rods (17) are vertically connected with connecting rods (19), each traction clamp (10) comprises two clamping plates (17) which are arranged in parallel, and a bidirectional overturning plate (18) is arranged at the upper ends of the clamping plates (17).
3. A spanning construction platform for an electric transmission line according to claim 1, characterized in that the rotating shaft (16) is provided with a plurality of rows of driving rods (17) along the circumferential direction, and the driving rods (17) located in the same row are all vertically connected to the same connecting rod (19).
4. The crossing construction platform for the power transmission line according to claim 1, wherein the side wall of the S-shaped structure of the sliding wire groove (7) is provided with a non-slip sheet (12) which is obliquely arranged towards the transmission direction of the power transmission line.
5. The crossing construction platform for the power transmission line according to claim 1, wherein a wire clamping plate (13) is arranged above the wire sliding groove (7), and the wire clamping plate (13) can rotate upwards around one end part.
6. The crossing construction platform for the power transmission line according to claim 1, wherein two reinforcing rods (14) are connected between the diagonal rods (4) and the bottom ends of the adjacent vertical rods (5), and the ends of the two reinforcing rods (14) are respectively connected at 1/3 and 3/4 of the diagonal rods (4).
7. A spanning construction platform for a power transmission line according to claim 1, characterized in that a fixed structure is also connected between the two insulating platform frames (1).
8. A spanning construction platform for an electrical transmission line according to claim 2, characterized in that the inner wall of the clamping plate (17) is covered with a wear-resistant soft layer.
9. A method of installing a crossover construction platform for a power transmission line according to any one of claims 1 to 8, comprising the steps of:
(1) Firstly, a vertical flat plate (20) is installed on a ground power transmission line, the bottom of the flat plate is fixed on the ground through a base, vertical guide rails are installed on the side walls of two sides of the flat plate, and a fixing clamp is installed on each guide rail;
(2) Selecting a cross rod, a longitudinal rod and a vertical rod according to the size of a platform frame (2) at the uppermost layer of the insulating platform frame (1), and mounting and forming;
(3) Connecting a vertical rod of the uppermost platform frame (2) close to one side of the flat plate with a fixed clamp of a guide rail, respectively arranging hydraulic devices below a bottom cross rod and a vertical rod of the platform frame (2), and lifting the platform frame (2) through the hydraulic devices;
(4) The method comprises the steps of sequentially installing a vertical rod, a longitudinal rod, a cross rod and an inclined rod of a second-layer platform frame (2), loosening a fixing clamp and the upper-layer platform frame (2) after the installation is finished, enabling the fixing clamp to move downwards and then be connected with the vertical rod of a lower-layer platform frame (2), and then respectively arranging a hydraulic device below the cross rod and the longitudinal rod at the bottom of the lower-layer platform frame (2) to lift the double-layer platform frame (2);
(5) Repeating the steps to finish the installation of the insulating platform frames (1) on the two sides of the power transmission line;
(6) And (3) hoisting the insulating crossing frame (6) to the upper part of the power transmission line by using a crane, and then respectively installing two ends on the insulating platform frames (1) at two sides to finish the installation of the crossing construction platform.
10. A method of installing a cross-over construction platform for a power transmission line according to claim 9, wherein the multi-layered platform frames (2) of the insulating platform frames (1) on both sides of the flat plate (20) are alternately installed.
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| CN202311429067.2A CN117526156B (en) | 2023-10-30 | 2023-10-30 | Full-insulation rapid crossing platform and installation method |
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| CN202311429067.2A CN117526156B (en) | 2023-10-30 | 2023-10-30 | Full-insulation rapid crossing platform and installation method |
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| Publication number | Publication date |
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| CN117526156B (en) | 2024-08-09 |
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