Traction mechanism for power grid cable laying

Abstract

The invention discloses a traction mechanism for power grid cable laying, and belongs to the technical field of cable laying, and the traction mechanism comprises a traction vehicle body which is internally provided with a storage cavity and a lead-out port which are communicated with each other; the winding unit is arranged in the storage cavity; the guide unit and the reciprocating unit are both arranged in the storage cavity and detachably connected with each other, the guide unit is used for guiding the left-right direction position of the traction rope during winding and unwinding, and the reciprocating unit is used for driving the guide unit to reciprocate left and right; the limiting unit is arranged in the lead-out opening; according to the scheme, the limiting unit can prevent the pulling rope from swinging left and right repeatedly due to reciprocating deviation during winding and unwinding, cable swinging and angle deviation can be avoided, and the situations of cable abrasion and overlarge local stress are greatly reduced; when the traction rope is released outwards, the reciprocating unit and the guide unit can be detached, the traction rope can be rapidly pulled out, the rope releasing length, speed and the like of the traction rope can be adjusted and controlled according to actual requirements, operation is more convenient, and different rope releasing requirements are met.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and more specifically, to a traction mechanism for laying power grid cables. Background Technology

[0002] Cable laying is a crucial step in electrical engineering, referring to the process of installing cables to designated locations according to design requirements and relevant specifications. Most cable laying processes require cable pulling, such as long-distance laying, cable tray or tunnel laying, and overhead laying. Pulling is necessary to overcome the cable's own weight and the friction between the cable and the laying path, thereby moving the cable from the starting point to the end point. Pulling primarily involves connecting the cable to a pulling rope, and then using pulling equipment to pull the rope and thus the cable from the starting point to the end point.

[0003] However, current traction equipment is not convenient enough when releasing the rope. It usually requires the use of motors to drive multiple mechanisms and manual labor to slowly release the rope, which wastes power resources. At the same time, the rope release process cannot be controlled and adjusted according to the actual needs of the workers, making the operation inconvenient. The long rope release time also leads to low cable laying efficiency. Moreover, the position of the traction rope is not concentrated when it is released and retracted, and it will swing left and right repeatedly. During traction, the cable will deviate at an angle, causing more wear and excessive local stress, which can easily damage the cable and affect the laying effect.

[0004] Therefore, it is necessary to provide a traction mechanism for laying power grid cables to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a traction mechanism for laying power grid cables to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A traction mechanism for laying power grid cables, comprising: The tractor body has interconnected storage cavities and outlets inside; A winding unit, located in the storage cavity, is used to wind the traction rope; The guiding unit and the reciprocating unit are both located in the storage cavity and are detachably connected to each other. The guiding unit is used to guide the left and right position of the traction rope during the winding and unwinding process, and the reciprocating unit is used to drive the guiding unit to move left and right back and forth. A limiting unit is disposed within the outlet to restrict the position of the traction rope entering and exiting the outlet.

[0007] Furthermore, the winding unit includes: A winding shaft is rotatably disposed on the left and right inner walls of the storage cavity, and the winding shaft is provided with a winding drum for winding the traction rope. A first drive unit is disposed on the outer wall of the tractor body, and the output end of the first drive unit is connected to one end of the take-up shaft.

[0008] Furthermore, the guiding unit includes: A guide rod is disposed on the inner wall of the storage cavity, and a connecting plate is slidably connected to the guide rod, and a guide frame is provided on the connecting plate; Two guide rollers are rotatably mounted between the upper and lower walls of the guide frame, and the traction rope is located between the two guide rollers.

[0009] Furthermore, the reciprocating unit includes: A lead screw is rotatably mounted on the left and right inner walls of the storage cavity. A reciprocating seat is threaded onto the lead screw, and the reciprocating seat is detachably connected to the connecting plate. The second drive unit is located on the outer wall of the tractor body, and the output end of the second drive unit is connected to one end of the lead screw.

[0010] Furthermore, the reciprocating seat and the connecting plate are respectively provided with an extension plate and a side plate. The side plate has a connecting hole, and the extension plate is provided with a connecting component for engaging with the connecting hole.

[0011] Furthermore, the connection component includes: A connecting rod slides through the extension plate and is adapted to the connecting hole. One end of the connecting rod is provided with a pull plate, and a first elastic element is provided between the pull plate and the extension plate.

[0012] Furthermore, the limiting unit includes: Two sleeves are symmetrically arranged on the left and right inner walls of the outlet, and each sleeve is provided with a retractable mounting bracket. The limiting cylinder is rotatably mounted on the sleeve, and the traction rope passes between the two limiting cylinders on both sides.

[0013] Furthermore, the left and right inner walls of the outlet are symmetrically rotated with two connecting shafts, and a brush roller is detachably connected between the two connecting shafts. The traction vehicle body is equipped with a linkage component to drive the upper and lower connecting shafts to rotate simultaneously in opposite directions.

[0014] Furthermore, the linkage component includes: Two gears are respectively located at the ends of the upper and lower connecting shafts, and the two gears mesh with each other; A drive belt, one side of which is connected to one end of the take-up shaft, and the other side of which is connected to one of the connecting shafts.

[0015] Furthermore, both ends of the brush roller are provided with insertion ports, and the two connecting shafts on the left and right sides that are close to each other are provided with retractable insertion rods that are adapted to the insertion ports.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution uses a winding unit to wind the traction rope, while a reciprocating unit drives the guide unit and the traction rope to move back and forth. This allows the traction rope to be wound evenly at different positions on the winding unit, avoiding local stacking caused by the traction rope being wound in the same position. It makes full use of the winding space, improves the winding and retrieval quality of the traction rope, and facilitates the storage and subsequent reuse of the traction rope.

[0017] 2. When the traction rope is being wound up, the limiting unit can restrict the position of the traction rope entering and exiting the outlet, which can prevent the traction rope from deviating back and forth and swinging left and right repeatedly during winding and unwinding. This can avoid the phenomenon of cable swinging during traction and causing angular deviation, which can greatly reduce the cable wear and excessive local stress, effectively reduce cable damage, improve the protection of cable laying, and better improve the laying effect of cable.

[0018] 3. When the traction rope is released, the reciprocating unit and the guiding unit can be separated. After that, neither the winding unit nor the reciprocating unit will work actively, that is, no electric drive will occur. Then the traction rope can be pulled outward to achieve the purpose of releasing the rope. No active electric drive is required, which can save more power resources and reduce the cost of cable laying. Since there is no reciprocating unit to restrict the guide unit and traction rope, the traction rope can be pulled out quickly. Unlike the current slow rope release, the length and speed of the traction rope can be adjusted and controlled according to the specific needs of the workers. This makes operation more convenient, meets the rope release needs in various situations, and saves a lot of rope release time, thereby improving the efficiency of cable laying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the traction mechanism of the present invention; Figure 2 This is a structural schematic diagram of the traction mechanism of the present invention from another side view; Figure 3 This is a schematic diagram of the internal structure of the tractor body of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the tractor body of the present invention from another side view; Figure 6 for Figure 5Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the internal structure of the tractor body of the present invention from a frontal view. Figure 8 for Figure 7 Enlarged structural diagram at point C; Figure 9 This is a three-dimensional structural diagram of the guide unit portion of the present invention; Figure 10 This is a cross-sectional structural schematic diagram of the sleeve of the present invention; Figure 11 This is a partial structural diagram of the brush roller before it is connected to the connecting shaft according to the present invention; Figure 12 This is a partial cross-sectional view of the connecting shaft of the present invention.

[0020] Explanation of the labels in the diagram: 1. Traction vehicle body; 2. Storage cavity; 3. Outlet; 4. Rewinding unit; 41. Rewinding shaft; 42. Winding drum; 43. First drive component; 5. Traction rope; 6. Guide unit; 61. Guide rod; 62. Connecting plate; 63. Guide frame; 64. Guide roller; 7. Reciprocating unit; 71. Lead screw; 72. Reciprocating seat; 73. Second drive component; 8. Limiting unit; 81. Sleeve; 82. Mounting bracket; 83. Limiting cylinder; 9. Extension plate; 10. Side plate; 11. Connecting hole; 12. Connecting assembly; 121. Connecting rod; 122. Pull plate; 123. First elastic element; 13. Connecting shaft; 14. Brush roller; 15. Linkage assembly; 151. Gear; 152. Transmission belt; 16. Insert; 17. Insert rod; 18. Inner shift cavity; 19. Second elastic element; 20. Shift groove; 21. Push rod; 22. Inner concealed cavity; 23. Third elastic element; 24. Pressure roller; 25. Operating door. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-12 A traction mechanism for laying power grid cables, comprising: The tractor body 1 has an internal storage cavity 2 and an outlet 3 that are interconnected. The winding unit 4 is located in the storage cavity 2 and is used to wind the traction rope 5; The guide unit 6 and the reciprocating unit 7 are both located in the storage cavity 2 and are detachably connected to each other. The guide unit 6 is used to guide the left and right position of the traction rope 5 during the winding and unwinding process, and the reciprocating unit 7 is used to drive the guide unit 6 to move left and right back and forth. The limiting unit 8 is located inside the outlet 3 and is used to limit the position of the traction rope 5 entering and exiting the outlet 3.

[0023] In use, after the traction rope 5 is fully extended, its end is connected to the cable. At this point, the traction rope 5 needs to be wound up. By operating the winding unit 4, the traction rope 5 is wound up. When the traction rope 5 is wound, it pulls the cable to move, thus achieving the purpose of laying the cable. At the same time, the reciprocating unit 7 drives the guide unit 6 to move back and forth left and right. The guide unit 6 guides the left and right position of the traction rope 5. That is, the reciprocating unit 7 drives the guide unit 6 and the traction rope 5 to move back and forth left and right. Thus, the left and right reciprocating movement of the traction rope 5 allows it to be wound evenly on different positions on the winding unit 4. This avoids the traction rope 5 being wound in the same position, causing local stacking, making full use of the winding space, improving the winding and retrieval quality of the traction rope 5, and facilitating the storage and subsequent reuse of the traction rope 5.

[0024] Meanwhile, when the traction rope 5 is being wound back up, the limiting unit 8 in the outlet 3 can restrict the position of the traction rope 5 entering and exiting the outlet 3, that is, restrict the left and right position of the traction rope 5, so that it always enters and exits from the middle position in the outlet 3. This can prevent the traction rope 5 from shifting back and forth during winding and unwinding and causing repeated left and right swinging. This can also avoid the phenomenon of cable swinging during traction and causing angular deviation, which can greatly reduce the cable wear and excessive local stress caused by this, effectively reduce the cable damage, improve the protection of cable laying, and better improve the cable laying effect.

[0025] Before pulling the cable, the traction rope 5 in the storage chamber 2 needs to be released, that is, the rope is released. First, the reciprocating unit 7 can be moved together with the guide unit 6 to the operation port position. The operation port passes through the outer wall of the traction vehicle body 1. Then, the reciprocating unit 7 and the guide unit 6 are separated, so that the reciprocating unit 7 is not connected to the guide unit 6. Then, the winding unit 4 and the reciprocating unit 7 do not work actively, that is, no electric drive occurs. Then the traction rope 5 can be pulled outward to achieve the purpose of releasing the rope. No electric active drive is required, which can save more power resources and reduce the cable laying cost. Since there is no reciprocating unit 7 restricting the guide unit 6 and the traction rope 5, when the traction rope 5 is pulled out from the winding unit 4, the guide unit 6 will swing with the traction rope 5, and the traction rope 5 can be pulled out quickly. Unlike the current slow rope release, the release length and speed of the traction rope 5 can be adjusted and controlled according to the specific needs of the workers. The operation is more convenient, meets the rope release needs in various situations, and saves a lot of rope release time, thereby improving the efficiency of cable laying. It can be widely promoted and used.

[0026] Furthermore, two pressure rollers 24 are rotatably installed on the left and right inner walls of the storage cavity 2. The traction rope 5 passes between the two pressure rollers 24, which guide the traction rope 5 and limit its vertical position, ensuring that the traction rope 5 is in a horizontal state when passing through the outlet 3 during traction and release, preventing bending, pulling and wear.

[0027] For preferred options, please refer to [link / reference]. Figure 2-3 , Figure 5 and Figure 7 The winding unit 4 includes: The winding shaft 41 is rotatably disposed on the left and right inner walls of the storage cavity 2, and the winding shaft 41 is provided with a winding drum 42 for winding the connecting traction rope 5. The first drive unit 43 is located on the outer wall of the tractor body 1, and the output end of the first drive unit 43 is connected to one end of the winding shaft 41.

[0028] Specifically, the first drive unit 43 in this application can be a servo motor. By starting the first drive unit 43, the take-up shaft 41 is driven to rotate, and the take-up shaft 41 will drive the winding drum 42 to rotate. The rotation of the winding drum 42 can wind the traction rope 5. Similarly, when releasing the rope, the first drive unit 43 can be inactive, and the release of the traction rope 5 will also drive the winding drum 42 to rotate in the opposite direction.

[0029] For preferred options, please refer to [link / reference]. Figure 5-9 The guide unit 6 includes: A guide rod 61 is provided on the inner wall of the storage cavity 2. A connecting plate 62 is slidably connected to the guide rod 61, and a guide frame 63 is provided on the connecting plate 62. Two guide rollers 64 are rotatably mounted between the upper and lower walls of the guide frame 63, and the traction rope 5 is located between the two guide rollers 64.

[0030] Specifically, the traction rope 5 wound on the winding drum 42 passes between two guide rollers 64 and is then discharged from the outlet 3. The two guide rollers 64 can restrict the left and right positions of the traction rope 5. The reciprocating unit 7 will drive the connecting plate 62 to move back and forth along the guide rod 61, which will cause the guide frame 63 and the guide roller 64 to drive the traction rope 5 to move back and forth, so that the traction rope 5 can be evenly wound onto the winding drum 42.

[0031] During the winding and unwinding process, the traction rope 5 causes the two guide rollers 64 to rotate, which reduces the friction of the traction rope 5, improves the smoothness of winding and unwinding, and reduces wear.

[0032] In this embodiment, preferably, please refer to [reference needed]. Figure 2-8 The reciprocating unit 7 includes: The lead screw 71 is rotatably mounted on the left and right inner walls of the storage cavity 2. A reciprocating seat 72 is threadedly connected to the lead screw 71, and the reciprocating seat 72 is detachably connected to the connecting plate 62. The second drive unit 73 is located on the outer wall of the tractor body 1, and the output end of the second drive unit 73 is connected to one end of the lead screw 71.

[0033] Specifically, the second drive component 73 in this application can be a servo motor. When the second drive component 73 is started, it rotates continuously in both directions, which will drive the lead screw 71 to rotate back and forth. The rotation of the lead screw 71 will drive the reciprocating seat 72 to move back and forth left and right. The reciprocating seat 72 will drive the connecting plate 62 connected to it to move back and forth left and right, thus achieving the effect of driving the traction rope 5 to move back and forth left and right through the guide frame 63 and the guide roller 64.

[0034] In this embodiment, preferably, please refer to [reference needed]. Figure 5-8 An extension plate 9 and a side plate 10 are respectively provided on the reciprocating seat 72 and the connecting plate 62. The side plate 10 is provided with a connecting hole 11, and the extension plate 9 is provided with a connecting component 12 for cooperating with the connecting hole 11.

[0035] This design allows the connecting plate 62 to move to the extension plate 9 and above the reciprocating seat 72. Then, the connecting component 12 can limit the side plate 10, so that the side plate 10 and the extension plate 9 are connected. Then, the movement of the reciprocating seat 72 can drive the side plate 10 and the connecting plate 62 to move.

[0036] When the limiting connection between the connecting component 12 and the side plate 10 is released, when the traction rope 5 is pulled, the traction rope 5 will cause the connecting plate 62 to slide along the guide rod 61.

[0037] Furthermore, the outer wall of the tractor body 1 is provided with an operating door 25 to cover the operating port. After opening the operating door 25, the reciprocating unit 7 and the guide unit 6 can be operated through the operating port, which can connect the connecting component 12 to the side plate 10 of the connecting plate 62, or disconnect the connecting component 12 from the side plate 10.

[0038] For preferred options, please refer to [link / reference]. Figure 6 and Figure 8 The connecting component 12 includes: The connecting rod 121 slides through the extension plate 9 and is adapted to the connecting hole 11. One end of the connecting rod 121 is provided with a pull plate 122, and a first elastic element 123 is provided between the pull plate 122 and the extension plate 9.

[0039] With this design, the first elastic element 123 in this application can be a spring. Before connecting the extension plate 9 and the side plate 10, the pull plate 122 is pulled to move the connecting rod 121, which will cause the first elastic element 123 to be stretched and deformed. When the side plate 10 is on the extension plate 9, and the connecting hole 11 on the side plate 10 corresponds to the position of the connecting rod 121, after the pull plate 122 is released, the rebound force of the first elastic element 123 will drive the connecting rod 121 to move and finally enter the connecting hole 11 of the side plate 10, thus completing the connection and fixation of the side plate 10 and the connecting plate 62.

[0040] When the pull plate 122 is pulled again to move the connecting rod 121 away from the connecting hole 11 of the side plate 10, the side plate 10 and the connecting plate 62 can be removed, thus completing the separation of the side plate 10 and the extension plate 9.

[0041] For preferred options, please refer to [link / reference]. Figure 3-5 and Figure 7 The limiting unit 8 includes: Two sleeves 81 are symmetrically arranged on the left and right inner walls of the outlet 3, and the sleeves 81 are provided with retractable mounting brackets 82. The limiting cylinder 83 is rotatably mounted on the sleeve 81, and the traction rope 5 passes through the space between the two limiting cylinders 83.

[0042] Specifically, the traction rope 5 wound on the winding drum 42 will be led out between the two limiting drums 83 after passing through the guide unit 6, so that the traction rope 5 always moves in and out from the middle position of the outlet 3, preventing the traction rope 5 from shifting back and forth during winding and unwinding and causing repeated left and right swings, thereby avoiding the phenomenon of angular deviation caused by cable traction swings and improving the cable laying effect.

[0043] The movement of the traction rope 5 will cause the limiting cylinder 83 to rotate, which can reduce the moving friction of the traction rope 5, reduce wear and improve the smoothness of movement.

[0044] The movement of the traction rope 5 will exert a certain compressive force on the limiting cylinder 83, which will then drive the mounting frame 82 to extend and retract, thereby reducing the hard compression of the traction rope 5 and thus providing a partial buffering effect, reducing the damage to the traction rope 5.

[0045] For preferred options, please refer to [link / reference]. Figure 10The sleeve 81 has an inner cavity 22 that is slidably connected to the mounting bracket 82. The inner wall of the inner cavity 22 is provided with a third elastic element 23 that is connected to the mounting bracket 82.

[0046] With this design, the third elastic element 23 in this application can be a combination of a damper and a spring. When the limiting cylinder 83 is squeezed by the traction rope 5 and moves the mounting frame 82 toward the inner cavity 22, it will gradually compress the third elastic element 23, thereby reducing the wear caused by the hard compression of the traction rope 5. After the limiting cylinder 83 loses the squeezing force, the third elastic element 23 can drive the mounting frame 82 and the limiting cylinder 83 to reset, which can better limit the left and right position of the traction rope 5.

[0047] For preferred options, please refer to [link / reference]. Figure 1-5 The left and right inner walls of the outlet 3 are symmetrically rotated with two connecting shafts 13. A brush roller 14 is detachably connected between the two connecting shafts 13. The traction vehicle body 1 is equipped with a linkage component 15, which is used to drive the upper and lower connecting shafts 13 to rotate simultaneously in opposite directions.

[0048] With this design, when the winding traction rope 5 is retrieved, the linkage assembly 15 can drive the two connecting shafts 13 to rotate, and the connecting shafts 13 can drive the brush roller 14 to rotate. Figure 3 Taking the direction as an example, the upper brush roller 14 will rotate clockwise and the lower brush roller 14 will rotate counterclockwise. In this way, the surface of the traction rope 5 will be cleaned by the two brush rollers 14, which can remove some impurities on the traction rope 5, reduce the attached impurities on the traction rope 5, prevent it from affecting subsequent use, and improve the continuous use performance of the traction rope 5.

[0049] After a period of use, the brush roller 14 can be removed for cleaning or replacement, which facilitates continuous use and improves the cleaning effect on the traction rope 5.

[0050] In this embodiment, preferably, please refer to [reference needed]. Figure 1-2 The linkage component 15 includes: Two gears 151 are respectively located at the ends of the upper and lower connecting shafts 13, and the two gears 151 mesh with each other; The drive belt 152 has one side connected to one end of the take-up shaft 41, and the other side connected to one of the connecting shafts 13.

[0051] With this design, when the first drive component 43 drives the take-up shaft 41 and the winding drum 42 to rotate, the take-up shaft 41 simultaneously rotates via the transmission belt 152. The other side of the transmission belt 152 then drives the connected shaft 13 to rotate. At this time, the connected shaft 13, through the transmission of the gear 151, drives another connected shaft 13 to rotate in the opposite direction. Thus, the two connected shafts 13 rotate simultaneously in opposite directions, which in turn drives the brush roller 14 to rotate. By driving the brush roller 14 through linkage with the take-up shaft 41, the need for additional drive components can be reduced, resulting in better linkage and reduced costs.

[0052] In this embodiment, preferably, please refer to [reference needed]. Figure 4 and Figure 11 Both ends of the brush roller 14 are provided with insertion ports 16, and the two connecting shafts 13 on the left and right sides are provided with retractable insertion rods 17 that are adapted to the insertion ports 16.

[0053] With this design, when installing the brush roller 14, the insert rod 17 can be pressed down to retract it, so that the brush roller 14 is positioned between the two connecting shafts 13 on the left and right, and the insertion port 16 is aligned with the insert rod 17. After releasing the insert rod 17, the insert rod 17 will reset and insert into the insertion port 16 of the brush roller 14, thus achieving the limiting and fixing of the brush roller 14. When disassembling, the insert rod 17 is retracted to disengage the brush roller 14 from the connecting shaft 13. The installation and disassembly of the brush roller 14 are very convenient and simple.

[0054] In this embodiment, preferably, please refer to [reference needed]. Figure 11-12 The connecting shaft 13 has an inner displacement cavity 18 inside. A second elastic element 19 is provided between the inner end of the insertion rod 17 and the bottom wall of the inner displacement cavity 18. The outer wall of the connecting shaft 13 has a displacement groove 20 that communicates with the inner displacement cavity 18. A push rod 21 connected to the insertion rod 17 is slidably connected to the inner wall of the displacement groove 20. The second elastic element 19 in this application can be a spring.

[0055] With this design, before installing the brush roller 14, the push rod 21 can be pushed to move the insertion rod 17 into the inner cavity 18, which will compress the second elastic element 19. When the brush roller 14 is between the two connecting shafts 13, the push rod 21 is released, and the rebound force of the second elastic element 19 will move the insertion rod 17 to reset. Finally, the insertion rod 17 will be inserted into the insertion port 16 of the brush roller 14, thus completing the connection and fixation of the brush roller 14.

[0056] When disassembling the brush roller 14, similarly, first push the push rod 21 to move the insertion rod 17 into the inner moving cavity 18. Once the insertion rod 17 is disengaged from the insertion port 16 of the brush roller 14, the brush roller 14 can be removed. The operation is simple and convenient.

[0057] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0059] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A traction mechanism for power cable laying, characterized in that, include: The tractor body (1) has an interconnected storage cavity (2) and an outlet (3) inside. A winding unit (4) is provided in the storage cavity (2) for winding the traction rope (5); The guide unit (6) and the reciprocating unit (7) are both located in the storage cavity (2) and are detachably connected to each other. The guide unit (6) is used to guide the left and right positions of the traction rope (5) during release and retraction. The reciprocating unit (7) is used to drive the guide unit (6) to move left and right back and forth. The limiting unit (8) is disposed in the outlet (3) to limit the position of the traction rope (5) entering and exiting the outlet (3).

2. A power cable laying tractor according to claim 1, characterized in that The winding unit (4) includes: A winding shaft (41) is rotatably disposed on the left and right inner walls of the storage cavity (2), and a winding drum (42) for winding and connecting the traction rope (5) is provided on the winding shaft (41). A first drive member (43) is provided on the outer wall of the tractor body (1), and the output end of the first drive member (43) is connected to one end of the winding shaft (41).

3. A power cable laying tractor according to claim 1, characterized in that The guiding unit (6) includes: A guide rod (61) is provided on the inner wall of the storage cavity (2), and a connecting plate (62) is slidably connected to the guide rod (61). A guide frame (63) is provided on the connecting plate (62). Two guide rollers (64) are rotatably disposed between the upper and lower walls of the guide frame (63), and the traction rope (5) is located between the two guide rollers (64).

4. A power cable laying tractor according to claim 3, characterised in that, The reciprocating unit (7) includes: A lead screw (71) is rotatably mounted on the left and right inner walls of the storage cavity (2). A reciprocating seat (72) is threaded onto the lead screw (71). The reciprocating seat (72) is detachably connected to the connecting plate (62). The second drive unit (73) is located on the outer wall of the tractor body (1), and the output end of the second drive unit (73) is connected to one end of the lead screw (71).

5. A power cable laying tractor according to claim 4, characterised in that, The reciprocating seat (72) and the connecting plate (62) are respectively provided with an extension plate (9) and a side plate (10). The side plate (10) is provided with a connecting hole (11), and the extension plate (9) is provided with a connecting component (12) for cooperating with the connecting hole (11).

6. A power cable laying tractor according to claim 5, characterised in that, The connection component (12) includes: The connecting rod (121) slides through the extension plate (9) and is adapted to the connecting hole (11). One end of the connecting rod (121) is provided with a pull plate (122), and a first elastic element (123) is provided between the pull plate (122) and the extension plate (9).

7. A power cable laying tractor according to claim 1, characterized in that The limiting unit (8) includes: Two sleeves (81) are symmetrically arranged on the left and right inner walls of the outlet (3), and the sleeves (81) are provided with retractable mounting brackets (82). The limiting cylinder (83) is rotatably mounted on the sleeve (81), and the traction rope (5) passes between the two limiting cylinders (83).

8. A power cable laying tractor according to claim 2, characterized in that The left and right inner walls of the outlet (3) are symmetrically rotated with two connecting shafts (13), and a brush roller (14) is detachably connected between the two connecting shafts (13). The traction vehicle body (1) is provided with a linkage component (15) to drive the two connecting shafts (13) to rotate simultaneously in opposite directions.

9. A power cable laying tractor according to claim 8, characterised in that, The linkage component (15) includes: Two gears (151) are respectively located at the ends of the upper and lower connecting shafts (13), and the two gears (151) mesh with each other; A drive belt (152) is connected on one side to one end of the take-up shaft (41) and on the other side to one of the connecting shafts (13).

10. A power cable laying tractor according to claim 8, characterized in that Both ends of the brush roller (14) are provided with slots (16), and the two connecting shafts (13) on the left and right sides are provided with retractable rods (17) that are adapted to the slots (16).

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