Power construction pay-off rack

Abstract

The utility model relates to the technical field of electric power construction, and discloses an electric power construction pay-off rack which comprises a base, a cross beam is fixedly connected to one side of the top of the base, a curved beam is fixedly connected to the other side of the top of the base, a lower support is fixedly connected between the cross beam and the curved beam, and a U-shaped piece is fixedly connected to the outer side of the lower support. An upper support is fixedly connected between the tops of the two U-shaped pieces, sliding grooves are formed in the upper support and the lower support, supporting blocks are slidably connected into the two sliding grooves in the tops, and fixing blocks are fixedly connected to the two sides of the exterior of the upper support. According to the winding roll feeding device, when the motor is started, the first screw rod and the second screw rod can synchronously rotate under transmission of the two bevel gears, the first screw rod can drive the supporting block to move downwards to put down a used winding roll, meanwhile, the second screw rod drives the L-shaped push plate to push a new winding roll for feeding, and therefore the winding roll can be conveniently and synchronously installed and taken out. And the working efficiency of the pay-off rack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power construction, in particular to an electric power construction pay-off frame. Background Art

[0002] Power transmission and distribution systems usually require the laying of a large number of wires and conductors. As a key component, the power construction pay-off rack is responsible for the laying, protection and support of wires and conductors. Usually, in order to ensure the convenience of transportation and use, the wires are mostly wound on reels and sent to the construction site. With the help of the pay-off rack, the wires can be quickly and easily released from the reels for laying.

[0003] At present, traditional electric power construction pay-off stands are mostly composed of fixed brackets. The wire reel with the wire wound on it is placed in the groove at the top of the bracket, and the support shaft of the wire reel and the top of the pay-off stand are installed together through the corresponding arc-shaped fasteners. The wire on the reel can be released by rotating the support shaft of the wire reel on the top of the pay-off stand. In the actual construction process, when the wires on the reel are laid, the reel with the wires emptied on the bracket needs to be manually removed, and then the new reel with the wire wound on it is hoisted and placed on the top of the pay-off stand by lifting equipment.

[0004] Every time the wires and reels on the pay-out rack are replaced, workers are required to manually remove the empty reel and then install the reel with the wires wound on the pay-out rack. The process requires the steps of first removing and then installing, which is time-consuming and makes the pay-out rack inconvenient and inefficient when used. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a power construction pay-off rack, aiming to improve the problem that the pay-off rack in the prior art needs to go through the steps of first taking out and then installing when replacing wires and winding reels, which is time-consuming.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric power construction pay-off frame, comprising a base, a crossbeam fixedly connected to one side of the top of the base, a curved beam fixedly connected to the other side of the top of the base, a lower bracket fixedly connected between the crossbeam and the curved beam, a U-shaped piece fixedly connected to the outside of the lower bracket, an upper bracket fixedly connected between the tops of the two U-shaped pieces, a slide groove is provided inside the upper bracket and the lower bracket, support blocks are slidably connected inside the two top slide grooves, fixed blocks are fixedly connected to the outer sides of the upper bracket, a screw rod 1 is rotatably connected between the fixed block and the lower bracket, the support block is threadedly connected to the outer periphery of the screw rod 1, a bevel gear is fixedly connected to the bottom end of the screw rod 1, the crossbeam, the lower bracket and the curved beam are fixedly connected to a limiting strip on one side away from the U-shaped piece, a groove is provided on the middle side of the top of the limiting strip, two support plates are fixedly connected to the one side of the top of the base away from the curved beam, a driving assembly is provided between the two support plates, an oil injection channel is provided on the top of the upper bracket, and an oil supply assembly is installed on the top of the upper bracket.

[0007] As a further description of the above technical solution:

[0008] The driving assembly includes two motors, the outer sides of the two motors are fixedly connected to the edge of one side of the support plate away from the lower bracket, the output end of the motor is fixedly connected to screw rod 2, the end of screw rod 2 away from the motor is fixedly connected to a bevel gear, the two adjacent bevel gears are meshed, the outer periphery of screw rod 2 is threadedly connected to a movable block, and the top of the movable block is fixedly connected to an L-shaped push plate.

[0009] As a further description of the above technical solution:

[0010] The bottom of the movable block is slidably connected to the top of the base, the bottom of the L-shaped push plate is arranged on the top of the crossbeam, and the second outer periphery of the screw rod is rotatably connected between the insides of the two support plates.

[0011] As a further description of the above technical solution:

[0012] The opposite sides of the two support blocks are both slidably connected to the middle of the U-shaped member, and the top of the support block is provided with an arc-shaped concave surface.

[0013] As a further description of the above technical solution:

[0014] The oil supply assembly includes a turntable and a sleeve, the bottom end of the turntable is fixedly connected to the top of one of the screw rods, the top of the turntable is fixedly connected to an eccentric shaft, the bottom of the sleeve is fixedly connected to the top of the upper bracket, a piston is slidably connected inside the sleeve, a slide is provided between the piston and the eccentric shaft, an oil inlet valve is installed on the side of the sleeve away from the turntable, and an oil outlet valve is installed on the top of the sleeve.

[0015] As a further description of the above technical solution:

[0016] The inside of the oil injection channel is communicated with the inside of the slide groove, and the top of the oil outlet valve and the insides of the two oil injection channels are communicated with each other through a hose.

[0017] As a further description of the above technical solution:

[0018] One end of the slide is fixedly connected to the middle of the sleeve, and the other end of the slide is slidably connected to the outer periphery of the eccentric shaft.

[0019] As a further description of the above technical solution:

[0020] The bottoms of the two lower brackets are fixedly connected to the top of one of the support plates.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, through the cooperation of the motor, screw rod 2, movable block, L-shaped push plate, screw rod 1, support block, bevel gear, limit strip, groove, lower bracket, U-shaped part and upper bracket, when the motor is started, screw rod 1 and screw rod 2 will rotate synchronously under the transmission of two sets of bevel gears, wherein screw rod 1 will drive the support block to move downward to put down the used wire reel, and at the same time, screw rod 2 will drive the L-shaped push plate to push the new wire reel to load the material, thereby realizing convenient and synchronous completion of the installation and removal of the wire reel, and improving the working efficiency of the wire pay-off rack.

[0023] In the utility model, through the cooperation of the screw rod, the oil injection channel, the turntable, the eccentric shaft, the slide, the sleeve, the piston, the oil inlet valve and the oil outlet valve, when the pay-off rack is replaced with a new one for the wire reel wound with the wire, it is possible to conveniently add lubricating oil to the contact portion between the support shaft on the wire reel and the pay-off rack, thereby reducing the wear of the pay-off rack and ensuring that the pay-off rack releases the wire more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a power construction pay-off frame proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an oil injection channel for a power construction pay-off frame proposed by the utility model;

[0026] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0028] Figure 5 for Figure 1 Enlarged view of point C in the middle;

[0029] Figure 6 The utility model is a schematic diagram of the internal structure of a sleeve of a power construction pay-off frame.

[0030] Legend:

[0031] 1. Base; 2. Crossbeam; 3. Curved beam; 4. Lower bracket; 5. U-shaped piece; 6. Upper bracket; 7. Slide; 8. Support block; 9. L-shaped push plate; 10. Fixed block; 11. Screw rod 1; 12. Bevel gear; 13. Limiting strip; 14. Groove; 15. Support plate; 16. Motor; 17. Screw rod 2; 18. Movable block; 19. Oil injection channel; 20. Turntable; 21. Eccentric shaft; 22. Slide; 23. Sleeve; 24. Piston; 25. Oil inlet valve; 26. Oil outlet valve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1 The utility model provides an embodiment: a power construction pay-off rack, including a base 1, the bottom of the base 1 is equipped with a universal wheel structure (not shown in the figure), which can realize the convenient transfer of the pay-off rack in the construction area. A crossbeam 2 is fixedly connected to one side of the top of the base 1, and a curved beam 3 is fixedly connected to the other side of the top of the base 1. A lower bracket 4 is fixedly connected between the crossbeam 2 and the curved beam 3. The side of the crossbeam 2 away from the lower bracket 4 is slightly bent downward, which can prevent the wire reel carrying the wire placed on the crossbeam 2 from moving. The side of the curved beam 3 away from the lower bracket 4 is also slightly bent downward, so that the wire reel pushed to the top of the curved beam 3 can quickly roll along the curved beam 3 to the edge, which is convenient for subsequent workers to recycle the empty wire reel.

[0034] Reference Figure 2 , Figure 4 and Figure 5, a U-shaped piece 5 is fixedly connected to the outside of the lower bracket 4, and an upper bracket 6 is fixedly connected between the tops of the two U-shaped pieces 5. The U-shaped piece 5 can ensure that the support shaft on the wire reel can enter the interior of the lower bracket 4 without being blocked by the upper bracket 6, and also ensure that the upper bracket 6 can be firmly installed on the lower bracket 4. A slide groove 7 is provided inside the upper bracket 6 and the lower bracket 4, and a support block 8 is slidably connected inside the two top slide grooves 7. A fixed block 10 is fixedly connected to both sides of the outer side of the upper bracket 6. A screw rod 11 is rotatably connected between the fixed block 10 and the lower bracket 4, and the inner part of the support block 8 is threadedly connected to the outer periphery of the screw rod 11. When the screw rod 11 rotates, it can drive the support block 8 to move in the slide groove 7 inside the upper bracket 6 or the lower bracket 4, and then the support block 8 can drive the wire reel that has released the wire downward when it moves downward, and send it out of the interior of the upper bracket 6. At the same time, when the screw rod 11 drives the support block 8 to move upward, it can transport the wire reel carrying the wire upward to a high place. A bevel gear 12 is fixedly connected to the bottom end of the screw rod 11, and the side of the cross beam 2, the lower bracket 4 and the curved beam 3 away from the U-shaped member 5 are fixedly connected to a limit strip 13, and a groove 14 is provided on the middle side of the top of the limit strip 13. Through the limit strip 13 and the groove 14 on its top, the support bearing of the cable reel can be supported on the groove 14 when the cable reel moves downward, and the support block 8 continues to be driven by the screw rod 11 to move downward into the slide groove 7 inside the lower bracket 4, so that the empty cable reel placed on the groove 14 can be pushed onto the curved beam 3 and taken out from the pay-off rack in subsequent operations.

[0035] Reference Figure 1 , Figure 4 and Figure 5 Two support plates 15 are fixedly connected to the side of the top of the base 1 away from the curved beam 3, and a driving assembly is arranged between the two support plates 15. The driving assembly can drive the bevel gear 12 at the bottom of the screw 11 to rotate, and then drive the support block 8 to move inside the slide groove 7. At the same time, the driving assembly will also drive the wire reel placed on the cross beam 2 to move, push it onto the lower bracket 4, and fall into the groove 14 on the limit strip 13 for limiting, so as to prevent the support shaft on the wire reel from shaking on the lower bracket 4, so that when the subsequent support block 8 extends from the slide groove 7 inside the lower bracket 4, the wire reel can be directly lifted up and moved upward, and then enter the slide groove 7 inside the upper bracket 6.

[0036] Reference Figure 1 , Figure 2 and Figure 5, an oil injection channel 19 is provided at the top of the upper bracket 6, through which the lubricating oil can be conveniently injected into the contact part between the support shaft part of the winding reel and the pay-off frame. An oil supply assembly is installed on the top of the upper bracket 6, and the oil supply assembly will extract the lubricating oil from the outside as the pay-off frame is started, and transport it to the inside of the oil injection channel 19. The opposite sides of the two support blocks 8 are slidably connected to the middle of the U-shaped member 5, so that the support block 8 can pass through the gap between the upper bracket 6 and the lower bracket 4 through the limit of the U-shaped member 5, and then stably enter the slide groove 7 inside the upper bracket 6 or the lower bracket 4. An arc-shaped concave surface is provided on the top of the support block 8, and the arc-shaped concave surface on the top of the support block 8 can be adapted to the support shaft on the winding reel, ensuring that the support block 8 will not shake or fall when lifting the support shaft of the winding reel. The bottoms of the two lower brackets 4 are fixedly connected to the top of one of the support plates 15, and the lower bracket 4 is supported by the support plate 15, further improving the support strength of the lower bracket 4.

[0037] Reference Figure 1 , Figure 4 and Figure 5 The driving assembly includes two motors 16. The outer sides of the two motors 16 are fixedly connected to the edge of one side of one of the support plates 15 away from the lower bracket 4. The output end of the motor 16 is fixedly connected to the screw rod 2 17. The end of the screw rod 2 17 away from the motor 16 is fixedly connected to the bevel gear 12. The two adjacent bevel gears 12 are meshed. The outer periphery of the screw rod 2 17 is threadedly connected to a movable block 18. The top of the movable block 18 is fixedly connected to the L-shaped push plate 9. The motor 16 is started to drive the screw rod 2 17 to rotate. Through the transmission of the two sets of bevel gears 12, the screw rod 2 17 rotates and correspondingly drives the screw rod 1 11 on the same side to rotate. At the same time, under the drive of the screw rod 2 17, the movable block 18 will move toward the lower bracket 4, and push the winding drum placed on the cross beam 2 through the L-shaped push plate 9, so that the winding drum placed on the cross beam 2 will slowly enter between the upper bracket 6 and the lower bracket 4 under the push of the L-shaped push plate 9, and finally stay on the groove 14. The bottom of the movable block 18 is slidably connected to the top of the base 1, so that the movable block 18 can remain stable when driven by the screw rod 17, and then drive the L-shaped push plate 9 to stably push the wire reel carrying the wire to load. The bottom of the L-shaped push plate 9 is set on the top of the crossbeam 2, so that the L-shaped push plate 9 can move near the top of the crossbeam 2, and then push the support shaft of the wire reel, so that the wire reel can roll to the groove 14 and stay. The outer periphery of the screw rod 17 is rotatably connected between the inside of the two support plates 15, so that when the motor 16 drives the screw rod 17 to rotate, the stability of the screw rod 17 can be maintained, and then the stability of the pay-off rack during loading and unloading is ensured.

[0038] Reference Figure 2 , Figure 3 and Figure 6The oil supply assembly includes a rotating disk 20 and a sleeve 23. The bottom end of the rotating disk 20 is fixedly connected to the top of one of the screw rods 11. The top of the rotating disk 20 is fixedly connected to the eccentric shaft 21. The bottom of the sleeve 23 is fixedly connected to the top of the upper bracket 6. The piston 24 is slidably connected inside the sleeve 23. A slide 22 is arranged between the piston 24 and the eccentric shaft 21. An oil inlet valve 25 is installed on the side of the sleeve 23 away from the rotating disk 20, and an oil outlet valve 26 is installed on the top of the sleeve 23. It will drive a rotating disk 20 at the top to rotate, and the eccentric shaft 21 is driven to perform circular motion through the rotation of the rotating disk 20, so that the eccentric shaft 21 can pull the piston 24 through the slide 22 to continuously reciprocate inside the sleeve 23. At the same time, since both the oil inlet valve 25 and the oil outlet valve 26 are one-way valve structures, when the piston 24 moves toward the position of the rotating disk 20, negative pressure will be generated inside the sleeve 23, and then transmitted to the lubricating oil storage tank through the oil inlet valve 25, and the lubricating oil will be sucked into the sleeve 23. Then the piston 24 will move toward the inside of the sleeve 23 to reset, and at this time the piston 24 will squeeze the lubricating oil inside the sleeve 23, so that the lubricating oil passes through the oil outlet valve 26 into the hose under high pressure, and finally enters the inside of the oil injection channel 19 along the hose. When the injected lubricating oil reaches the required amount, the pipeline and the oil outlet valve 26 can be separated, so that no more lubricating oil will be sucked into the sleeve 23. After that, the lubricating oil enters the inside of the slide 7 along the oil injection channel 19, and then lubricates the contact distribution between the support shaft of the winding drum and the pay-off frame, reducing the wear of the pay-off frame and ensuring that the pay-off frame releases the wire more smoothly.

[0039] Reference Figure 2 , Figure 3 and Figure 6 The inside of the oil injection channel 19 is connected to the inside of the slide 7, and the top of the oil outlet valve 26 and the inside of the two oil injection channels 19 are connected through a hose, so that after the lubricating oil enters the hose from the oil outlet valve 26, it will be divided and enter the two oil injection channels 19 respectively to lubricate the pay-off stand. One end of the slide 22 is fixedly connected to the middle of the sleeve 23, and the other end of the slide 22 is slidably connected to the outer periphery of the eccentric shaft 21. The slide 22 can convert the circular motion trend of the eccentric shaft 21 into the linear reciprocating motion trend of the piston 24, so as to realize the convenient extraction and injection of the lubricating oil.

[0040] Working principle: When the wires on the pay-off rack are released and laid, the motor 16 is started to drive the screw rod 2 17 to rotate. Through the transmission of the two sets of bevel gears 12, the screw rod 2 17 rotates and correspondingly drives the screw rod 1 11 on the same side to rotate. At this time, the movable block 18 will move toward the lower bracket 4 under the drive of the screw rod 2 17, and push the reel placed on the beam 2 through the L-shaped push plate 9. At the same time, the movement of the screw rod 11 will drive the support block 8 to move downward along the inside of the slide groove 7, and lower the reel with the released wires from the top of the upper bracket 6. During the process, the screw rod 11 will drive the support block 8 to pass through the U-shaped part 5 first and enter the slide groove 7 inside the lower bracket 4. At this time, the reel on the top of the support block 8 will be placed on the groove 14 in the middle of the limit strip 13 through the support shafts at both ends. At this time, the motor 16 continues to start, the support block 8 will continue to move down in the slide groove 7 inside the lower bracket 4, and the controlled wire reel will stay on the top of the lower bracket 4, and at this time, the L-shaped push plate 9 pushes the wire reel with the wire wound on it from the crossbeam 2 to the lower bracket 4. The force of the L-shaped push plate 9 will cause the wire reel with the wire to push the empty wire reel out of the groove 14 and fall onto the curved beam 3. At this time, the empty wire reel will roll along the curved surface at the top of the curved beam 3 to the edge, waiting for the worker to recycle it, and the wire reel with the wire will continue to be pushed by the L-shaped push plate 9 until it falls into the groove 14. At this time, the motor 16 starts to drive the screw rod 2 17 to rotate in the opposite direction, so that the L-shaped push plate 9 will move in the direction away from the lower bracket 4 until it returns to its original position, and the support block 8 will be driven by the screw rod 1 11 to move upward, so that the support block 8 extends from the slide groove 7 inside the lower bracket 4, and supports the two support bearings of the wire reel carrying the wire through the arc-shaped concave structure on the top of the support block 8. As the motor 16 continues to drive the screw rod 2 17 to rotate in the opposite direction, the L-shaped push plate 9 moves to the original position on the beam 2, and the support block 8 will lift the wire reel carrying the wire through the U-shaped part 5 into the upper bracket 6, and until the support block 8 supports the wire reel carrying the wire upward to the highest point inside the slide groove 7, at this time, the unloading and loading operations of the pay-off rack are completed. After that, during the working period, only the next wire reel carrying the wire is hoisted to the beam 2 by the lifting equipment, and the above operations are repeated to complete the unloading and loading operations of the pay-off rack conveniently and synchronously.

[0041] When the wire reel carrying the electric wire is sent upward to the top of the upper bracket 6, the worker can plug the pipe on the lubricating oil storage tank and the oil inlet valve 25. As the screw 11 rotates in the opposite direction to lift the support block 8 upward, the screw 11 will also drive a turntable 20 on the top to rotate, and the eccentric shaft 21 is driven to perform circular motion through the rotation of the turntable 20, so that the eccentric shaft 21 can pull the piston 24 through the slide 22 to continuously reciprocate inside the sleeve 23. At the same time, since the oil inlet valve 25 and the oil outlet valve 26 are both one-way valve structures, when the piston 24 moves toward the position of the turntable 20, negative pressure will be generated inside the sleeve 23, and then transmitted to the lubricating oil storage tank through the oil inlet valve 25, and the lubricating oil will be sucked into the sleeve 23. Then the piston 24 will move toward the inside of the sleeve 23 to reset. At this time, the piston 24 will squeeze the lubricating oil inside the sleeve 23, so that the lubricating oil passes through the oil outlet valve 26 into the hose under high pressure, and finally enters the inside of the oil filling channel 19 along the hose. After extracting a certain amount of lubricating oil, the pipeline and the oil inlet valve 25 on the oil storage tank can be disassembled to avoid injecting too much lubricating oil and causing waste. After that, the lubricating oil entering the inside of the oil filling channel 19 will drip into the slide groove 7 inside the upper bracket 6, and finally the lubricating oil will soak the inner wall of the lubricating groove 7, and contact the top of the upward support block 8, and also contact the outside of the support shaft of the winding drum carrying the wire. When the wire on the winding drum is pulled and released, with the help of the rotation of the winding drum, the lubricating oil is evenly applied to the top inner wall of the slide groove 7, the top of the support block 8 and the outer periphery of the support shaft of the winding drum.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power construction pay-off frame, comprising a base (1), characterized in that: A crossbeam (2) is fixedly connected to one side of the top of the base (1), a curved beam (3) is fixedly connected to the other side of the top of the base (1), a lower bracket (4) is fixedly connected between the crossbeam (2) and the curved beam (3), a U-shaped member (5) is fixedly connected to the outside of the lower bracket (4), an upper bracket (6) is fixedly connected between the tops of the two U-shaped members (5), a slide groove (7) is provided inside the upper bracket (6) and the lower bracket (4), a support block (8) is slidably connected inside the two slide grooves (7) at the top, a fixed block (10) is fixedly connected to both sides of the outside of the upper bracket (6), and a screw is rotatably connected between the fixed block (10) and the lower bracket (4). Rod one (11), the support block (8) is internally threadedly connected to the outer periphery of the screw rod one (11), the bottom end of the screw rod one (11) is fixedly connected to a bevel gear (12), the side of the cross beam (2), the lower bracket (4) and the curved beam (3) away from the U-shaped member (5) are all fixedly connected to a limit strip (13), a groove (14) is provided on the middle side of the top of the limit strip (13), two support plates (15) are fixedly connected to the side of the top of the base (1) away from the curved beam (3), a driving assembly is provided between the two support plates (15), an oil injection channel (19) is provided on the top of the upper bracket (6), and an oil supply assembly is installed on the top of the upper bracket (6).

2. The electric power construction pay-off frame according to claim 1, characterized in that: The driving assembly comprises two motors (16), the outer sides of the two motors (16) are fixedly connected to the edge of one side of one of the support plates (15) away from the lower bracket (4), the output end of the motor (16) is fixedly connected to a second screw rod (17), the end of the second screw rod (17) away from the motor (16) is fixedly connected to a bevel gear (12), two adjacent bevel gears (12) are meshed, the outer periphery of the second screw rod (17) is threadedly connected to a movable block (18), and the top of the movable block (18) is fixedly connected to an L-shaped push plate (9).

3. The electric power construction pay-off frame according to claim 2, characterized in that: The bottom of the movable block (18) is slidably connected to the top of the base (1), the bottom of the L-shaped push plate (9) is arranged on the top of the crossbeam (2), and the outer periphery of the second screw rod (17) is rotatably connected between the insides of the two support plates (15).

4. The electric power construction pay-off frame according to claim 1, characterized in that: The opposite sides of the two support blocks (8) are both slidably connected to the middle of the U-shaped member (5), and the top of the support block (8) is provided with an arc-shaped concave surface.

5. The electric power construction pay-off frame according to claim 1, characterized in that: The oil supply assembly comprises a turntable (20) and a sleeve (23), wherein the bottom end of the turntable (20) is fixedly connected to the top end of one of the screw rods (11), the top of the turntable (20) is fixedly connected to an eccentric shaft (21), the bottom of the sleeve (23) is fixedly connected to the top of the upper bracket (6), a piston (24) is slidably connected inside the sleeve (23), a slide (22) is provided between the piston (24) and the eccentric shaft (21), an oil inlet valve (25) is installed on a side of the sleeve (23) away from the turntable (20), and an oil outlet valve (26) is installed on the top of the sleeve (23).

6. The electric power construction pay-off frame according to claim 5, characterized in that: The interior of the oil injection channel (19) is connected to the interior of the slide groove (7), and the top end of the oil outlet valve (26) and the interiors of the two oil injection channels (19) are connected via a hose.

7. The electric power construction pay-off frame according to claim 5, characterized in that: One end of the slide (22) is fixedly connected to the middle of the sleeve (23), and the other end of the slide (22) is slidably connected to the outer periphery of the eccentric shaft (21).

8. The electric power construction pay-off frame according to claim 1, characterized in that: The bottoms of the two lower brackets (4) are fixedly connected to the top of one of the support plates (15).

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