Take-up and pay-off vehicle for electrified railway contact net

Abstract

The utility model relates to the technical field of electrified railways, and discloses an electrified railway catenary take-up and pay-off vehicle which comprises a vehicle body, a rectangular shell is fixedly installed at the top of the vehicle body, two first fixing blocks are fixedly installed at the top of the vehicle body, and first rotating rods are rotationally installed on the sides, close to each other, of the two first fixing blocks. The front faces of the first rotating rods penetrate through the corresponding first fixing blocks. Through the design of the first belt, efficient power transmission between the first rotating rod and the roller is ensured, accurate control over the cable winding and unwinding speed is achieved, through introduction of the second belt, the rotating speed of the two-way lead screw and the rotating speed of the roller are kept synchronous, the uniformity and tightness of the cable in the winding process are ensured, and therefore the problems that the cable is loosened, wound unevenly and the like are solved; and by arranging the large gear, the small gear and the medium gear, the rotating speed can be changed according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of electrified railways, and more specifically to an overhead wire retracting and unreeling vehicle for electrified railways. Background Art

[0002] The construction and maintenance of the high-speed railway contact network, as a key facility for electric locomotives to obtain electrical energy, is of vital importance. The contact network is responsible for stably and efficiently transmitting electricity to the high-speed trains in motion, ensuring that the trains can run continuously and quickly. However, in the process of erecting the contact network, traditional construction methods often rely on manpower to replace or install new conductors and load-bearing cables. This method is not only labor-intensive and inefficient, but also difficult to ensure the quality and safety of the project. Especially on busy railway lines, this construction method may also pose a threat to driving safety and the personal safety of workers. In order to solve these problems, the electrified railway contact network retractable and pay-out vehicle came into being. This professional equipment can greatly improve the efficiency of contact network erection. Efficiency and safety, reduce labor intensity, however, the electrified railway contact network pay-off and take-up vehicles on the market currently generally have a common problem: the take-up speed is fixed or can only be changed by adjusting the motor speed. This method of relying on the motor to adjust the rotation speed, although it can achieve speed changes, but in the long run, it puts higher requirements on the working state of the motor. The motor needs to constantly change its operating state to adapt to different take-up speeds, which not only increases energy consumption, but may also cause the motor to overheat and increase wear, thereby shortening its service life. In addition, frequent adjustment of the motor speed may also affect the stability of the take-up quality and increase the risk of contact network erection. Therefore, it needs to be improved and optimized. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an electrified railway contact network pay-off and take-up vehicle, which has the advantages of automatic speed change and uniform winding.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrified railway contact network retractable wire vehicle, comprising a vehicle body, a rectangular shell fixedly installed on the top of the vehicle body, two fixed blocks 1 fixedly installed on the top of the vehicle body, a rotating rod 1 rotatably installed on one side of the two fixed blocks 1 close to each other, the front side of the rotating rod 1 passes through the corresponding fixed block 1, a large gear, a small gear and a middle gear are fixedly sleeved on the outer wall of the rotating rod 1, two support columns are fixedly installed on the top of the vehicle body, rollers are rotatably installed on the inner walls of the two support columns, and a belt 1 is wound around the outer wall of the roller and the outer wall of the rotating rod 1.

[0005] As a preferred technical solution of the utility model, a rectangular block is fixedly installed on the top of the vehicle body, a rectangular groove is opened on the top of the rectangular block, a partition is fixedly installed on the inner wall of the rectangular groove, a bidirectional screw is rotatably installed inside the rectangular groove, the bidirectional screw passes through the partition and is rotatably connected to the partition, and a guide block is threadedly sleeved on the outer wall of the bidirectional screw.

[0006] As a preferred technical solution of the utility model, a sliding groove is provided on the top of the vehicle body, a mobile frame is slidably installed on the inner wall of the sliding groove, a rotating rod 2 is rotatably installed on the inner wall of the mobile frame, a gear set is fixedly sleeved on the outer wall of the rotating rod 2, and the gear set is meshed with a pinion gear, a hydraulic cylinder 1 is fixedly installed on the top of the vehicle body, the output shaft of the hydraulic cylinder 1 is fixedly connected to the front side of the mobile frame, a motor is fixedly installed on the back side of the mobile frame, and the output shaft of the motor extends to the interior of the mobile frame and is fixedly connected to the back side of the rotating rod 2.

[0007] As a preferred technical solution of the utility model, a limiting slide bar is fixedly installed on the inner wall of the front side of the partition, the back side of the limiting slide bar is fixedly connected to the inner wall of the rectangular groove, and the limiting slide bar passes through the guide block and is slidably connected to the guide block.

[0008] As a preferred technical solution of the utility model, a notch is opened on the right side of the rectangular block, and belt 2 is wound around the outer walls of the bidirectional screw rod and the rotating rod 1, and the belt 2 passes through the notch on the outer wall of the right side of the rectangular block.

[0009] As a preferred technical solution of the utility model, a hydraulic cylinder 2 is fixedly installed on the inner wall of the bottom of the guide block, and a guide ring is fixedly installed on the output shaft of the hydraulic cylinder 2.

[0010] As a preferred technical solution of the utility model, a convex block is fixedly installed on the bottom of the movable frame, and the convex block is adapted to the contact surface of the sliding groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model ensures efficient power transmission between the rotating rod 1 and the roller through the design of the belt 1, and realizes the precise control of the cable retracting and releasing speed. The introduction of the belt 2 makes the rotation speed of the bidirectional screw and the roller synchronized, ensuring the uniformity and tightness of the cable during the winding process, thereby avoiding the problems of loose cables and uneven winding. By setting large gears, small gears and medium gears, the rotation speed can be changed according to actual needs. By combining the belt drive and the gear drive system, the precise control of the cable retracting and releasing speed is realized, so that the equipment can adapt to a variety of different working scenes and process requirements = improving the adaptability and versatility of the equipment.

[0013] 2. The utility model has a guide block which is threadedly sleeved on the outer wall of the bidirectional screw rod to form a threaded connection with the bidirectional screw rod. Therefore, when the bidirectional screw rod rotates, the guide block moves back and forth along the axial direction of the bidirectional screw rod. Compared with the traditional device, the guide block is provided to limit and guide the cable when it is recovered, so that the cable can be evenly wound, which can better ensure the winding quality of the cable, thereby avoiding defects such as uneven tightness of the cable or loose winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the rectangular shell of the utility model;

[0016] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 5 It is a schematic diagram of the partial cross-section structure of the vehicle body of the utility model.

[0019] In the figure: 1. body; 2. rectangular shell; 3. support column; 4. roller; 5. fixed block 1; 6. rotating rod 1; 7. belt 1; 8. large gear; 9. small gear; 10. medium gear; 11. sliding groove; 12. moving frame; 13. rotating rod 2; 14. gear set; 15. hydraulic cylinder 1; 16. motor; 17. rectangular block; 18. rectangular groove; 19. partition; 20. bidirectional screw; 21. belt 2; 22. guide block; 23. limit slide; 24. hydraulic cylinder 2; 25. guide ring; 26. convex block. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 to 5As shown, the utility model provides an electrified railway contact network retractable wire vehicle, comprising a vehicle body 1, a rectangular shell 2 is fixedly installed on the top of the vehicle body 1, two fixed blocks 5 are fixedly installed on the top of the vehicle body 1, a rotating rod 6 is rotatably installed on one side of the two fixed blocks 5 close to each other, the front side of the rotating rod 6 passes through the corresponding fixed block 5, a large gear 8, a small gear 9 and a middle gear 10 are fixedly sleeved on the outer wall of the rotating rod 6, two supporting columns 3 are fixedly installed on the top of the vehicle body 1, rollers 4 are rotatably installed on the inner walls of the two supporting columns 3, and belts 7 are wound around the outer walls of the rollers 4 and the outer walls of the rotating rod 6.

[0022] The design of belt 7 ensures efficient power transmission between rotating rod 6 and roller 4, and realizes precise control of cable retraction and release speed. The introduction of belt 21 makes the rotation speed of bidirectional screw 20 synchronized with that of roller 4, and ensures the uniformity and tightness of the cable during winding, thereby avoiding problems such as loose cable and uneven winding. By setting large gears, small gears and medium gears, the rotation speed can be changed according to actual needs. By combining belt drive and gear drive system, precise control of cable retraction and release speed is realized, so that the equipment can adapt to a variety of different working scenarios and process requirements, which improves the adaptability and versatility of the equipment.

[0023] The staff first starts the motor 16, and the output shaft of the motor 16 rotates to drive the rotating rod 2 13 to rotate, and the rotating rod 2 13 drives the gear set 14 to rotate, and the gear set 14 meshes with the pinion 9 to drive the pinion 9. Now the pinion 9 drives the rotating rod 1 6 to rotate, and drives the roller 4 to rotate under the action of the belt 1 7, so as to perform the cable retracting operation. When the rotation speed of the roller 4 needs to be adjusted, the hydraulic cylinder 15 is started, and the output shaft of the hydraulic cylinder 15 is telescopic to drive the moving frame 12 to move, and the moving frame 12 drives the rotating rod 2 13 to move, and the rotating rod 2 13 drives the gear set 14 to move, so that the gear set 14 is meshed with the large gear 8 or the middle gear 10, thereby achieving the purpose of speed change.

[0024] Among them, a rectangular block 17 is fixedly installed on the top of the car body 1, a rectangular groove 18 is opened on the top of the rectangular block 17, a partition 19 is fixedly installed on the inner wall of the rectangular groove 18, a bidirectional screw rod 20 is rotatably installed inside the rectangular groove 18, the bidirectional screw rod 20 passes through the partition 19 and is rotatably connected to the partition 19, and a guide block 22 is threadedly sleeved on the outer wall of the bidirectional screw rod 20.

[0025] The guide block 22 is threadedly sleeved on the outer wall of the bidirectional screw rod 20 to form a threaded connection with the bidirectional screw rod 20. Therefore, when the bidirectional screw rod 20 rotates, the guide block 22 moves back and forth along the axial direction of the bidirectional screw rod 20. Compared with the traditional device, by setting the guide block 22, the cable can be limited and guided when it is recovered, so that the cable can be evenly wound, which can better ensure the winding quality of the cable, thereby avoiding defects such as uneven tightness of the cable or loose winding.

[0026] When the staff is performing the cable retracting and releasing operation, after the motor 16 is started, the output shaft of the motor 16 drives the rotating rod 2 13 to rotate, the rotating rod 2 13 drives the gear set 14 to rotate, the gear set 14 engages with the pinion 9 to drive the pinion 9 to rotate, the pinion 9 drives the rotating rod 1 6 to rotate, and the bidirectional screw rod 20 is driven to rotate under the action of the belt 21, and the bidirectional screw rod 20 is threadedly connected to the guide block 22, thereby driving the guide block 22 to reciprocate in the horizontal direction, so as to limit and guide the cable when it is retracted, so that the cable can be evenly wound.

[0027] Among them, a sliding groove 11 is opened on the top of the vehicle body 1, and a moving frame 12 is slidably installed on the inner wall of the sliding groove 11, and a rotating rod 13 is rotatably installed on the inner wall of the moving frame 12. A gear set 14 is fixedly sleeved on the outer wall of the rotating rod 13, and the gear set 14 is meshed with the pinion 9. A hydraulic cylinder 15 is fixedly installed on the top of the vehicle body 1, and the output shaft of the hydraulic cylinder 15 is fixedly connected to the front of the moving frame 12. A motor 16 is fixedly installed on the back of the moving frame 12, and the output shaft of the motor 16 extends to the interior of the moving frame 12 and is fixedly connected to the back of the rotating rod 13.

[0028] Through the hydraulic cylinder 15, the output shaft of the hydraulic cylinder 15 is telescopically driven to drive the movable frame 12 to move, the movable frame 12 drives the rotating rod 2 13 to move, and the rotating rod 2 13 drives the gear set 14 to move. Through the position change of the gear set 14, the gear set 14 can mesh with gears of different sizes on the outer wall of the rotating rod 16, so as to achieve the purpose of speed change. The speed change mechanism enables the wire-reeling and wire-winding vehicle to adjust the speed according to different work requirements, thereby improving work efficiency and adaptability.

[0029] Among them, a limiting slide bar 23 is fixedly installed on the inner wall of the front side of the partition 19 , the back side of the limiting slide bar 23 is fixedly connected to the inner wall of the rectangular groove 18 , and the limiting slide bar 23 passes through the guide block 22 and is slidably connected to the guide block 22 .

[0030] The design of the limiting slide bar 23 ensures that the guide block 22 can slide freely on the limiting slide bar 23, while limiting its movement trajectory through the slide bar to prevent it from deviating from the predetermined path, thereby improving the working efficiency and service life of the retractable and pay-off vehicle.

[0031] Among them, a slot is opened on the right side of the rectangular block 17, and a belt 21 is wound around the outer walls of the bidirectional screw rod 20 and the rotating rod 1 6, and the belt 21 passes through the slot on the outer wall of the right side of the rectangular block 17.

[0032] The bidirectional screw rod 20 and the rotating rod 1 6 are connected together by the belt 2 21, so that power transmission and speed matching between the two can be achieved.

[0033] Among them, a hydraulic cylinder 24 is fixedly installed on the bottom inner wall of the guide block 22, and a guide ring 25 is fixedly installed on the output shaft of the hydraulic cylinder 24.

[0034] Driven by the hydraulic cylinder 24, the guide ring 25 can move precisely in the vertical direction to meet the height requirements of the site. By setting the guide block 22, the path of the cables and wires during the process of retracting and releasing the cables can be guided.

[0035] A convex block 26 is fixedly mounted on the bottom of the moving frame 12 , and the convex block 26 is matched with the contact surface of the sliding groove 11 .

[0036] The convex block 26 is adapted to the contact surface of the sliding groove 11, thereby ensuring that the moving frame 12 can move stably and smoothly in the sliding groove 11, while reducing unnecessary friction and resistance.

[0037] The working principle and use process of this utility model:

[0038] The staff first starts the motor 16, and the output shaft of the motor 16 rotates to drive the rotating rod 2 13 to rotate, and the rotating rod 2 13 drives the gear set 14 to rotate, and the gear set 14 meshes with the pinion 9 to drive the pinion 9. Now the pinion 9 drives the rotating rod 1 6 to rotate, and drives the roller 4 to rotate under the action of the belt 1 7, so as to perform the cable retracting operation. When the rotation speed of the roller 4 needs to be adjusted, the hydraulic cylinder 15 is started, and the output shaft of the hydraulic cylinder 15 is telescopic to drive the moving frame 12 to move, and the moving frame 12 drives the rotating rod 2 13 to move, and the rotating rod 2 13 drives the gear set 14 to move, so that the gear set 14 is meshed with the large gear 8 or the middle gear 10, thereby achieving the purpose of speed change.

[0039] When the staff is performing the cable retracting and releasing operation, after the motor 16 is started, the output shaft of the motor 16 drives the rotating rod 2 13 to rotate, the rotating rod 2 13 drives the gear set 14 to rotate, the gear set 14 engages with the pinion 9 to drive the pinion 9 to rotate, the pinion 9 drives the rotating rod 1 6 to rotate, and the bidirectional screw rod 20 is driven to rotate under the action of the belt 21, and the bidirectional screw rod 20 is threadedly connected to the guide block 22, thereby driving the guide block 22 to reciprocate in the horizontal direction, so as to limit and guide the cable when it is retracted, so that the cable can be evenly wound.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrified railway overhead wire retracting and paying-off vehicle, comprising a vehicle body (1), characterized in that: A rectangular shell (2) is fixedly mounted on the top of the vehicle body (1), two fixed blocks (5) are fixedly mounted on the top of the vehicle body (1), a rotating rod (6) is rotatably mounted on the side of the two fixed blocks (5) close to each other, the front side of the rotating rod (6) passes through the corresponding fixed block (5), a large gear (8), a small gear (9) and a middle gear (10) are fixedly sleeved on the outer wall of the rotating rod (6), two support columns (3) are fixedly mounted on the top of the vehicle body (1), rollers (4) are rotatably mounted on the inner walls of the two support columns (3), and a belt (7) is wound around the outer wall of the roller (4) and the outer wall of the rotating rod (6).

2. The electrified railway overhead wire retracting and paying-off vehicle according to claim 1, characterized in that: A rectangular block (17) is fixedly mounted on the top of the vehicle body (1), a rectangular groove (18) is opened on the top of the rectangular block (17), a partition (19) is fixedly mounted on the inner wall of the rectangular groove (18), a bidirectional screw rod (20) is rotatably mounted inside the rectangular groove (18), the bidirectional screw rod (20) passes through the partition (19) and is rotatably connected to the partition (19), and a guide block (22) is threadedly sleeved on the outer wall of the bidirectional screw rod (20).

3. The electrified railway overhead wire retracting and paying-off vehicle according to claim 1, characterized in that: A sliding groove (11) is provided on the top of the vehicle body (1), a moving frame (12) is slidably mounted on the inner wall of the sliding groove (11), a rotating rod (13) is rotatably mounted on the inner wall of the moving frame (12), a gear set (14) is fixedly sleeved on the outer wall of the rotating rod (13), the gear set (14) is meshed with a pinion (9), a hydraulic cylinder (15) is fixedly mounted on the top of the vehicle body (1), an output shaft of the hydraulic cylinder (15) is fixedly connected to the front of the moving frame (12), a motor (16) is fixedly mounted on the back of the moving frame (12), an output shaft of the motor (16) extends to the inside of the moving frame (12) and is fixedly connected to the back of the rotating rod (13).

4. The electrified railway overhead wire retracting and paying-off vehicle according to claim 2, characterized in that: A limiting slide bar (23) is fixedly mounted on the inner wall of the front side of the partition (19); the back side of the limiting slide bar (23) is fixedly connected to the inner wall of the rectangular groove (18); the limiting slide bar (23) passes through the guide block (22) and is slidably connected to the guide block (22).

5. The electrified railway overhead wire retracting and paying-off vehicle according to claim 2, characterized in that: A notch is provided on the right side of the rectangular block (17), and a belt (21) is wound around the outer walls of the bidirectional screw rod (20) and the first rotating rod (6), and the belt (21) passes through the notch on the outer wall of the right side of the rectangular block (17).

6. The electrified railway overhead wire retracting and paying-off vehicle according to claim 2, characterized in that: A second hydraulic cylinder (24) is fixedly mounted on the inner wall of the bottom of the guide block (22), and a guide ring (25) is fixedly mounted on the output shaft of the second hydraulic cylinder (24).

7. The electrified railway overhead wire retracting and paying-off vehicle according to claim 3, characterized in that: A convex block (26) is fixedly mounted on the bottom of the movable frame (12), and the convex block (26) is adapted to the contact surface of the sliding groove (11).

Images