A contact network operation vehicle lifting and falling device

Abstract

This utility model discloses a retraction device for a catenary maintenance vehicle, belonging to the field of maintenance vehicle rescue technology. The retraction device includes a support frame with a retraction assembly mounted on it. The retraction assembly can lift the derailed portion of the maintenance vehicle above the rail. The retraction assembly is equipped with a hydraulic component and a deceleration component. The hydraulic component or deceleration component causes the retraction assembly to slide relative to the support frame in a second direction. After the derailed portion of the maintenance vehicle is above the rail, the deceleration component drives the retraction assembly to slide along the support frame. When the sliding speed of the retraction assembly reaches a first speed, the deceleration component stops, and the hydraulic component drives the retraction assembly to slide along the support frame. This utility model first uses the deceleration component to slowly move the derailed portion of the maintenance vehicle laterally, thereby reducing or eliminating the sudden swaying caused by the abrupt change in the force state of the maintenance vehicle. Then, when the sliding speed of the retraction assembly reaches the first speed, the hydraulic component smoothly transitions from the deceleration component, ensuring the safety of the retraction construction site.

Description

Technical Field

[0001] This utility model belongs to the field of rescue technology for work vehicles, and in particular relates to a lifting and recovery device for overhead contact line work vehicles. Background Technology

[0002] With the development of electrified railways, overhead contact line maintenance vehicles have become crucial equipment for the daily maintenance, inspection, overhaul, emergency repairs, and construction of overhead contact lines. In emergency repairs, the recovery of derailed maintenance vehicles is also a key repair task.

[0003] The overhead contact line maintenance vehicle re-railing device is a special equipment used to help railway vehicles re-rail after derailment or bogie failure. Currently, when the re-railing device moves laterally, the force state of the maintenance vehicle changes abruptly, from static friction to dynamic friction, causing the maintenance vehicle to shake, which may pose a safety hazard at the construction site.

[0004] Therefore, there is an urgent need to design a lifting and resetting device for overhead contact line maintenance vehicles to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a contact wire maintenance vehicle lifting and resetting device, which has advantages and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the specific technical solution of the overhead contact line operation vehicle re-establishment device of this utility model is as follows:

[0007] A catenary maintenance vehicle retraction device includes a support frame placed on a track. A retraction assembly is mounted on the support frame and connected to the derailed section of the maintenance vehicle. The retraction assembly can slide relative to the support frame in a first direction to lift the derailed section of the maintenance vehicle above the track. The retraction assembly is equipped with a hydraulic component and a deceleration component. The hydraulic component or the deceleration component causes the retraction assembly to slide relative to the support frame in a second direction. After the derailed section of the maintenance vehicle is above the track, the deceleration component drives the retraction assembly to slide along the support frame. When the sliding speed of the retraction assembly reaches the first speed, the deceleration component stops, and the hydraulic component drives the retraction assembly to slide along the support frame.

[0008] Furthermore, the retraction assembly includes a sliding frame that can slide along the support frame. A retraction cylinder is connected to the sliding frame. When the retraction cylinder is located below the derailment part of the work vehicle, the output end of the retraction cylinder moves until it connects with the derailment part of the work vehicle. Then, the retraction cylinder lifts the derailment part of the work vehicle until the derailment part of the work vehicle is raised above the track.

[0009] Furthermore, the support frame is equipped with guide rails, and the sliding frame is slidably connected to the support frame through the guide rails.

[0010] Furthermore, the hydraulic assembly includes a connecting frame, on which a hydraulic cylinder is connected. The output end of the hydraulic cylinder is fixedly connected to the reciprocating assembly, so as to drive the reciprocating assembly to slide along the support frame via the hydraulic cylinder.

[0011] Furthermore, the deceleration assembly includes a worm gear and a worm. A placement cavity is provided in the connecting frame, and the worm gear is located in the placement cavity. The worm gear meshes with the worm so that when the worm gear rotates, the worm slides relative to the connecting frame in a second direction. The worm passes through the placement cavity and extends outside the connecting frame. After the derailment part of the work vehicle is higher than the track, the worm slides in the second direction until it connects with the retraction assembly, driving the retraction assembly to slide along the support frame.

[0012] Furthermore, a power source is provided inside the placement cavity, and a rotating shaft is fixedly connected to the output end of the power source. The rotating shaft is fixedly connected to the worm gear.

[0013] Furthermore, it also includes a switching valve, the outlet end of which is connected to the hydraulic cylinder, and the inlet end of which is connected to an oil tank and an oil pump respectively. When the deceleration assembly drives the reciprocating assembly to slide along the support frame, the oil tank is connected to the hydraulic cylinder through the switching valve. When the hydraulic assembly drives the reciprocating assembly to slide along the support frame, the oil pump is connected to the hydraulic cylinder through the switching valve.

[0014] Furthermore, the connecting frame is equipped with a control component, which controls whether the connecting frame is connected to the support frame.

[0015] Furthermore, the control component includes a control frame that can slide relative to the connecting frame in a first direction. A locking block is connected to the control frame, and multiple slots are provided on the support frame. When the locking block engages with the slots, the deceleration component or hydraulic component can drive the reciprocating component to slide along the support frame. When the locking block separates from the slots, the control frame can drive the connecting frame to slide along the support frame.

[0016] Furthermore, the control frame is provided with a sliding groove, through which the control frame is slidably connected to the connecting frame. A slide rail is connected to the control frame, through which the control frame is slidably connected to the guide rail on the support frame.

[0017] This utility model has the following advantages: After the derailed part of the work vehicle is higher than the track, the derailed part of the work vehicle is first slowly moved laterally by the deceleration component, thereby reducing or eliminating the sudden shaking caused by the force state of the work vehicle. Then, when the sliding speed of the retraction component reaches the first speed, the deceleration component stops, and the hydraulic component drives the retraction component to slide along the support frame. Thus, the hydraulic component smoothly transitions from the deceleration component, reducing or eliminating the shaking force and ensuring the safety of the retraction construction site. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the reciprocating device of this utility model;

[0019] Figure 2This is a schematic diagram of the exploded structure of the reactivation device of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the hydraulic component and control component of this utility model;

[0021] Figure 4 This is a schematic diagram of the deceleration assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure of the switching valve of this utility model;

[0023] The markings in the diagram are as follows: 1. Support frame; 11. Slot; 12. Plate; 2. Retraction assembly; 21. Sliding frame; 22. Retraction cylinder; 3. Hydraulic assembly; 31. Connecting frame; 32. Hydraulic cylinder; 4. Reduction assembly; 41. Worm gear; 42. Worm wheel; 43. Rotating shaft; 5. Control assembly; 51. Control frame; 52. Block; 53. Slide rail; 6. Oil tank; 61. Oil pump; 62. Switching valve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0026] The following is a reference to the appendix. Figure 1 To be continued Figure 5 This invention describes a catenary maintenance vehicle re-railing device, which is a special device used to help railway vehicles re-rail after derailment or bogie failure.

[0027] The lifting and repositioning device of this overhead contact line operation vehicle includes a support frame 1, which is placed on a track. A locking plate 12 is connected to the support frame 1. The locking plate 12 can slide relative to the support frame 1. After the support frame 1 is placed on the track, the locking plate 12 slides until it engages with the track to fix the support frame 1 on the track.

[0028] The current retraction device causes a sudden change in the force state of the work vehicle during lateral movement, from static friction to dynamic friction, which causes the work vehicle to shake and may pose a safety hazard at the construction site.

[0029] Therefore, a retraction assembly 2 is provided on the support frame 1. The retraction assembly 2 is connected to the derailment part of the work vehicle. The retraction assembly 2 can slide relative to the support frame 1 in the first direction A. First, the support frame 1 is placed on the track, and the retraction device is moved to the bottom load-bearing structure of the derailment part of the work vehicle. Then, the support frame 1 is fixed by the clamping plate 12. The retraction assembly 2 is started and moves upward along the first direction A until the retraction assembly 2 is connected to the derailment part of the work vehicle. Then, the retraction assembly 2 drives the derailment part of the work vehicle to continue to move upward along the first direction A until the ladder wheels of the derailment part of the work vehicle are raised above the track. Then, the retraction assembly 2 stops raising.

[0030] After the derailment section of the work vehicle has completed its movement and the ladder wheels of the derailment section are aligned with the track, the retraction assembly 2 drives the derailment section of the work vehicle to move downwards along the first direction A until the ladder wheels of the derailment section of the work vehicle connect with the track and rerail. Then, the retraction assembly 2 continues to move downwards along the first direction A, thereby separating the retraction assembly 2 from the derailment section of the work vehicle until the retraction assembly 2 is reset, so as to separate the retraction device from the track and avoid interference between the retraction assembly 2 and the derailment section of the work vehicle when the retraction device is separated from the track.

[0031] Specifically, the retraction assembly 2 includes a sliding frame 21, which can slide along the support frame 1. A retraction cylinder 22 is connected to the sliding frame 21. When the retraction cylinder 22 is located below the derailment part of the work vehicle, the output end of the retraction cylinder 22 moves until it connects with the derailment part of the work vehicle. Then, the retraction cylinder 22 lifts the derailment part of the work vehicle until it is raised above the track. After the derailment part of the work vehicle has moved, the retraction cylinder 22 lowers the derailment part of the work vehicle until the ladder wheels of the derailment part of the work vehicle are connected to the track and the vehicle is rerailed.

[0032] Preferably, the support frame 1 is provided with a guide rail, and the sliding frame 21 is slidably connected to the support frame 1 through the guide rail. By setting the guide rail, the sliding direction of the sliding frame 21 is limited, ensuring that the sliding frame 21 can only slide along the first direction A.

[0033] The retraction assembly 2 is equipped with a hydraulic assembly 3 and a deceleration assembly 4. The hydraulic assembly 3 or the deceleration assembly 4 causes the retraction assembly 2 to slide relative to the support frame 1 in the second direction B. After the derailed part of the working vehicle is higher than the rail, the deceleration assembly 4 first drives the retraction assembly 2 to slide along the support frame 1. At this time, the hydraulic assembly 3 is not activated. When the sliding speed of the retraction assembly 2 reaches the first speed, the deceleration assembly 4 stops, and the hydraulic assembly 3 drives the retraction assembly 2 to slide along the support frame 1. After the derailed part of the working vehicle is higher than the rail, the deceleration assembly 4 slowly moves the derailed part of the working vehicle laterally, thereby reducing or eliminating the sudden shaking caused by the force state of the working vehicle. Subsequently, when the sliding speed of the retraction assembly 2 reaches the first speed, the deceleration assembly 4 stops, and the hydraulic assembly 3 drives the retraction assembly 2 to slide along the support frame 1. Thus, the hydraulic assembly 3 smoothly transitions from the deceleration assembly 4, reducing or eliminating the shaking force and ensuring the safety of the retraction construction site.

[0034] Specifically, the second direction B is perpendicular to the first direction A. The first direction A is the lifting path of the reciprocating component 2, and the second direction B is the lateral movement path of the reciprocating component 2. The first direction A is perpendicular to the second direction B.

[0035] Specifically, the first speed is the normal speed at which the deceleration assembly 4 drives the retraction assembly 2. Since the derailment part of the work vehicle is lifted on the retraction assembly 2, the first speed will be reached after moving laterally for a certain distance.

[0036] When the deceleration component 4 stops and the hydraulic component 3 drives the reciprocating component 2 to slide along the support frame 1, the hydraulic component 3 preferably drives the reciprocating component 2 to slide along the support frame 1 at a first speed. In other embodiments of this utility model, other speeds may also be used.

[0037] Specifically, the hydraulic assembly 3 includes a connecting frame 31, on which a hydraulic cylinder 32 is connected. The output end of the hydraulic cylinder 32 is fixedly connected to the reciprocating assembly 2, so that the reciprocating assembly 2 can be driven to slide along the second direction B by the hydraulic cylinder 32.

[0038] Specifically, the deceleration assembly 4 includes a worm gear 42 and a worm 41. A placement cavity is provided in the connecting frame 31, and the worm gear 42 is located in the placement cavity. The worm gear 42 meshes with the worm 41 so that when the worm gear 42 rotates, the worm 41 slides relative to the connecting frame 31 in the second direction B. The worm 41 passes through the placement cavity and extends outside the connecting frame 31. After the derailment part of the work vehicle is higher than the track, the worm 41 slides in the second direction B until it connects with the retraction assembly 2, driving the retraction assembly 2 to slide along the support frame 1.

[0039] The part of the worm 41 that passes through the placement cavity is a through groove. The through groove limits the worm 41 and ensures that the worm 41 is always engaged with the worm wheel 42.

[0040] Furthermore, a power source is provided inside the placement cavity, and a rotating shaft 43 is fixedly connected to the output end of the power source. The rotating shaft 43 is fixedly connected to the worm gear 42. The power source can be a motor. In other embodiments of this utility model, other power sources can also be selected, as long as they can control the rotation of the worm gear 42.

[0041] This retraction device also includes a switching valve 62. The outlet end of the switching valve 62 is connected to the hydraulic cylinder 32, and the inlet end of the switching valve 62 is connected to the oil tank 6 and the oil pump 61 respectively. When the deceleration assembly 4 drives the retraction assembly 2 to slide along the support frame 1, the oil tank 6 is connected to the hydraulic cylinder 32 through the switching valve 62. Since the output end of the hydraulic cylinder 32 is fixedly connected to the sliding frame 21, the output end of the hydraulic cylinder 32 moves synchronously when the deceleration assembly 4 drives the retraction assembly 2 to slide along the support frame 1. At this time, the hydraulic tank is transported to the hydraulic cylinder 32 through the oil tank 6. When the hydraulic assembly 3 drives the retraction assembly 2 to slide along the support frame 1, the oil pump 61 is connected to the hydraulic cylinder 32 through the switching valve 62. The oil pump 61 drives the hydraulic cylinder 32 to move the retraction assembly 2.

[0042] The connecting frame 31 is equipped with a control component 5, which controls whether the connecting frame 31 is connected to the support frame 1. Specifically, the control component 5 includes a control frame 51, which can slide relative to the connecting frame 31 along the first direction A. A locking block 52 is connected to the control frame 51. The support frame 1 has multiple slots 11. When the locking block 52 is engaged with the slots 11, the deceleration component 4 or the hydraulic component 3 can drive the reciprocating component 2 to slide along the support frame 1. When the pushing distance of the hydraulic cylinder 32 reaches a large stroke, the locking block 52 is separated from the slots 11. At this time, the control frame 51 can drive the connecting frame 31 to slide along the support frame 1 to restore the pushing stroke of the hydraulic cylinder 32.

[0043] Furthermore, a sliding groove is provided on the control frame 51, and the control frame 51 is slidably connected to the connecting frame 31 through the sliding groove. By setting the sliding groove, the control frame 51 can only slide relative to the connecting frame 31 along the first direction A. A slide rail 53 is connected to the control frame 51, and the control frame 51 is slidably connected to the guide rail on the support frame 1 through the slide rail 53. The slide rail 53 restricts the sliding path of the control frame 51 along the second direction B.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A contact wire maintenance vehicle re-establishment device, characterized in that, The system includes a support frame (1) placed on a track. The support frame (1) is equipped with a retraction assembly (2), which is connected to the derailment part of the work vehicle. The retraction assembly (2) can slide relative to the support frame (1) in a first direction to lift the derailment part of the work vehicle above the track. The retraction assembly (2) is equipped with a hydraulic assembly (3) and a deceleration assembly (4). The hydraulic assembly (3) or the deceleration assembly (4) causes the retraction assembly (2) to slide relative to the support frame (1) in a second direction. The first direction is perpendicular to the second direction. After the derailment part of the work vehicle is above the track, the deceleration assembly (4) drives the retraction assembly (2) to slide along the support frame (1). When the sliding speed of the retraction assembly (2) reaches the first speed, the deceleration assembly (4) stops, and the hydraulic assembly (3) drives the retraction assembly (2) to slide along the support frame (1).

2. The overhead contact line maintenance vehicle re-establishment device according to claim 1, characterized in that, The retraction assembly (2) includes a sliding frame (21) which can slide along the support frame (1). A retraction cylinder (22) is connected to the sliding frame (21). When the retraction cylinder (22) is located below the derailment part of the work vehicle, the output end of the retraction cylinder (22) moves until it connects with the derailment part of the work vehicle. Then the retraction cylinder (22) lifts the derailment part of the work vehicle until the derailment part of the work vehicle is raised above the track.

3. The overhead contact line maintenance vehicle re-establishment device according to claim 2, characterized in that, The support frame (1) is provided with a guide rail, and the sliding frame (21) is slidably connected to the support frame (1) through the guide rail.

4. The overhead contact line maintenance vehicle re-establishment device according to claim 1, characterized in that, The hydraulic assembly (3) includes a connecting frame (31), on which a hydraulic cylinder (32) is connected. The output end of the hydraulic cylinder (32) is fixedly connected to the retraction assembly (2) so that the retraction assembly (2) can be driven to slide along the support frame (1) by the hydraulic cylinder (32).

5. The overhead contact line maintenance vehicle re-establishment device according to claim 4, characterized in that, The deceleration assembly (4) includes a worm gear (42) and a worm (41). The connecting frame (31) has a placement cavity. The worm gear (42) is located in the placement cavity. The worm gear (42) meshes with the worm (41) so that when the worm gear (42) rotates, the worm (41) slides relative to the connecting frame (31) in a second direction. The worm (41) passes through the placement cavity and extends to the outside of the connecting frame (31). After the derailment part of the work vehicle is higher than the track, the worm (41) slides in the second direction until it connects with the retraction assembly (2), driving the retraction assembly (2) to slide along the support frame (1).

6. The overhead contact line maintenance vehicle re-establishment device according to claim 5, characterized in that, The placement cavity is equipped with a power source, and the output end of the power source is fixedly connected to a rotating shaft (43), which is fixedly connected to a worm gear (42).

7. The overhead contact line maintenance vehicle re-establishment device according to claim 5, characterized in that, It also includes a switching valve (62), the outlet end of which is connected to the hydraulic cylinder (32), and the inlet end of which is connected to an oil tank (6) and an oil pump (61). When the deceleration assembly (4) drives the reciprocating assembly (2) to slide along the support frame (1), the oil tank (6) is connected to the hydraulic cylinder (32) through the switching valve (62). When the hydraulic assembly (3) drives the reciprocating assembly (2) to slide along the support frame (1), the oil pump (61) is connected to the hydraulic cylinder (32) through the switching valve (62).

8. The overhead contact line maintenance vehicle re-establishment device according to claim 4, characterized in that, The connecting frame (31) is provided with a control component (5), which controls whether the connecting frame (31) is connected to the support frame (1).

9. The overhead contact line maintenance vehicle re-establishment device according to claim 8, characterized in that, The control component (5) includes a control frame (51), which can slide relative to the connecting frame (31) in a first direction. A locking block (52) is connected to the control frame (51), and multiple slots (11) are provided on the support frame (1). When the locking block (52) engages with the slot (11), the deceleration component (4) or the hydraulic component (3) can drive the retraction component (2) to slide along the support frame (1). When the locking block (52) separates from the slot (11), the control frame (51) can drive the connecting frame (31) to slide along the support frame (1).

10. The overhead contact line maintenance vehicle re-establishment device according to claim 9, characterized in that, The control frame (51) is provided with a sliding groove, and the control frame (51) is slidably connected to the connecting frame (31) through the sliding groove. The control frame (51) is connected with a slide rail (53), and the control frame (51) is slidably connected to the guide rail on the support frame (1) through the slide rail (53).

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