A support device for EMU maintenance

Abstract

This utility model relates to the field of high-speed train maintenance and discloses a support device for high-speed train maintenance, including a support plate. A track is provided on the lower surface of the support plate, a moving component is provided at the bottom end of the support plate, and an adjusting clamping mechanism is provided at the top end of the support plate. The adjusting clamping mechanism includes an adjusting component, which includes a hydraulic rod. A fixing plate is provided at the top end of the hydraulic rod, and a positioning ring is fixedly connected to the lower surface of the fixing plate. The positioning ring is rotatably connected to the top end of the outer wall of the hydraulic rod. In this utility model, by setting an array of compression springs and sliding rods on the clamping plate, an elastic adaptive clamping structure is formed. This structure can automatically adjust the fit according to the shape of irregular parts of the high-speed train, and the sliding rods can be inserted into the recesses of the irregular parts of the high-speed train, achieving horizontal limiting, significantly improving clamping stability, and ensuring the safety and quality of the maintenance process.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train maintenance, and in particular to a support device for high-speed train maintenance. Background Technology

[0002] As the core equipment of modern rail transit, the safety and stability of high-speed trains depend on regular and efficient inspection and maintenance. During the inspection and maintenance process, key components such as bogies, braking systems, and suspension devices of the high-speed trains need to be positioned and firmly supported to ensure the smooth progress of the inspection and maintenance operations. As an important auxiliary equipment for inspection and maintenance operations, the performance of the support device directly affects the inspection and maintenance efficiency, operational safety, and component maintenance quality.

[0003] A search revealed Chinese Patent Publication No. CN220430109U, which discloses a support device for EMU maintenance, belonging to the field of EMU maintenance technology. The device includes a base with a lifting assembly inside. Extension plates are fixedly installed on both sides of the base's bottom. A telescopic rod is fixedly installed on the top of the extension plates. A support platform is fixedly installed on the top of the telescopic rod. A travel groove is provided on the top of the support platform. A fixing assembly is provided on the inner wall of the travel groove. The fixing assembly includes a bidirectional threaded rod, with both ends rotatably mounted on the inner walls of both sides of the support platform. A first bevel gear is fixedly installed at the middle end of the bidirectional threaded rod. This invention, by incorporating the fixing assembly, effectively secures the parts of the EMU requiring maintenance, preventing slippage during maintenance and avoiding personal injury to maintenance personnel. The device demonstrates good performance.

[0004] Although the device has some improvements, enabling it to clamp and fix the maintenance parts of the EMU and adjust according to the height of the maintenance parts, the shapes of the maintenance parts of the EMU are mostly irregular, while the clamping surface of the clamping plate in the device is flat. This makes it difficult to guarantee the number of contact points during clamping, and the stability of clamping is also difficult to guarantee, which in turn affects subsequent maintenance work. In addition, the orientation of the clamping plate in the device is fixed and cannot be adjusted according to the direction of the maintenance part of the EMU, resulting in poor adaptability and affecting maintenance efficiency.

[0005] Therefore, a support device for EMU maintenance is proposed to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a support device for EMU maintenance, which aims to improve the problem that the clamping surface of the existing clamping plate is flat, making it difficult to adapt to irregular maintenance parts of EMUs, resulting in fewer contact points and poor clamping stability during clamping.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a support device for EMU maintenance, comprising a support plate, a track provided on the lower surface of the support plate, a moving component provided at the bottom end of the support plate, and an adjusting clamping mechanism provided at the top end of the support plate.

[0008] The adjusting clamping mechanism includes an adjusting component, which includes a hydraulic rod. A fixing plate is provided at the top of the hydraulic rod, and a positioning ring is fixedly connected to the lower surface of the fixing plate. The positioning ring is rotatably connected to the top of the outer wall of the hydraulic rod. A fastening bolt is threaded through and connected to the right surface of the positioning ring, and a pressure block is rotatably connected to the left surface of the fastening bolt.

[0009] The adjusting clamping mechanism further includes a clamping assembly, which includes a slider that passes through and is slidably connected to the upper surface of the fixed plate. A clamping plate is fixedly connected to the upper surface of the slider.

[0010] As a further description of the above technical solution:

[0011] The clamping assembly also includes a motor, which is disposed on the front surface of the fixed plate. The output shaft of the motor is fixedly connected to a double-ended screw. A sleeve is fixedly connected to the rear surface of the clamping plate, and a slide rod is elastically connected to the rear surface of the clamping plate through a compression spring.

[0012] As a further description of the above technical solution:

[0013] The movable component includes an adjusting plate that is slidably connected to the left surface of a support plate. Positioning plates are fixedly connected to the left end of the lower surface of the adjusting plate and the right end of the lower surface of the support plate. Rollers are provided on the adjacent surfaces of the two sets of positioning plates. A locking block is elastically connected to the inner wall of the rear side of the adjusting plate through an elastic element. A push block is slidably connected to the front surface of the support plate. A connecting rod is fixedly connected to the rear surface of the push block. A push plate is fixedly connected to the rear surface of the connecting rod. A slot is formed in the inner wall of the support plate.

[0014] As a further description of the above technical solution:

[0015] The center of the positioning ring and the hydraulic rod are on the same axis, a handwheel is fixedly connected to the right surface of the fastening bolt, and the pressure block is slidably connected to the inner wall of the positioning ring.

[0016] As a further description of the above technical solution:

[0017] The double-ended screw passes through and is rotatably connected to the inner surface of the fixed plate, and the double-ended screw passes through and is threadedly connected to the inner surface of the slider.

[0018] As a further description of the above technical solution:

[0019] The slide rod passes through and is slidably connected to the rear surface of the sleeve, which is fitted onto the outer wall of the compression spring.

[0020] As a further description of the above technical solution:

[0021] The card block is slidably connected to the front surface of the adjustment plate, the card block is inserted into the inner wall of the card slot, and the right surface of the card block is set as an inclined surface that gradually slopes backward from left to right.

[0022] As a further description of the above technical solution:

[0023] The connecting rod is slidably connected to the inner wall of the support plate, the push plate is slidably connected to the inner wall of the support plate, and the push plate is inserted into the inner wall of the slot.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, by setting an array of compression springs and slide rods on the clamping plate, an elastic adaptive clamping structure is formed, which can automatically adjust the fit according to the shape of the irregular parts of the EMU. Moreover, the slide rod can be inserted into the recess of the irregular parts of the EMU, which can achieve horizontal limiting, significantly improve clamping stability, and ensure the safety and quality of the maintenance process.

[0026] 2. In this utility model, the moving component adopts an adjustable span design, and multi-level positioning is achieved through the cooperation of the card block and multiple sets of card slots. It can adapt to tracks of different widths, ensuring the applicability of the device. Moreover, the push-block driven unlocking structure is easy to operate, allowing the device to be quickly disassembled from the track, ensuring the convenience of the device.

[0027] 3. In this utility model, under the action of the adjustment component, the height adjustment of the hydraulic rod and the direction adjustment of the positioning ring enable the device to adapt to the maintenance height and orientation requirements of different components of the EMU, thereby improving maintenance efficiency and device adaptability. Attached Figure Description

[0028] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;

[0029] Figure 2 This is a three-dimensional structural breakdown diagram of the support plate and track in this utility model;

[0030] Figure 3 This is a three-dimensional cross-sectional diagram of the support plate and adjustment plate in this utility model.

[0031] Figure 4 This is a three-dimensional cross-sectional diagram showing the hydraulic rod, positioning ring, and fixing plate in this utility model.

[0032] Figure 5 This is a three-dimensional cross-sectional diagram of the fixing plate, slider, and clamping plate in this utility model.

[0033] Figure 6 This is a three-dimensional cross-sectional view of the sleeve in this utility model.

[0034] Legend:

[0035] 1. Support plate; 2. Track; 31. Positioning plate; 32. Roller; 33. Adjusting plate; 34. Elastic element; 35. Locking block; 36. Push block; 37. Connecting rod; 38. Push plate; 39. Slot; 41. Hydraulic rod; 42. Handwheel; 43. Fastening bolt; 44. Pressure block; 45. Positioning ring; 5. Fixing plate; 61. Motor; 62. Double-ended screw; 63. Slider; 64. Clamping plate; 65. Sleeve; 66. Compression spring; 67. Slide rod. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 - Figure 2 One embodiment of this utility model is a support device for EMU maintenance, which includes a support plate 1 connecting the whole device. The lower surface of the support plate 1 is provided with a track 2. The track 2 is made of high-strength steel and has an I-shaped cross section. The bottom end of the support plate 1 is provided with a moving component to facilitate the movement of the device along the track 2. The top end of the support plate 1 is provided with an adjusting clamping mechanism for clamping and fixing the EMU maintenance part.

[0038] Reference Figure 4 - Figure 6 The adjusting clamping mechanism includes an adjusting component, which includes a hydraulic rod 41 for adjusting the height of the fixed plate 5. The hydraulic rod 41 is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. The top of the hydraulic rod 41 is provided with a fixed plate 5. The lower surface of the fixed plate 5 is fixedly connected to a positioning ring 45. The positioning ring 45 is rotatably connected to the top of the outer wall of the hydraulic rod 41. The right surface of the positioning ring 45 is threaded through and connected to a fastening bolt 43. When the fastening bolt 43 rotates, it will move horizontally. The left surface of the fastening bolt 43 is rotatably connected to a pressure block 44. The left surface of the pressure block 44 is made of rubber, which can bring strong friction when it is in close contact with other objects.

[0039] Reference Figure 4 - Figure 6 The clamping mechanism also includes a clamping assembly, which includes a slider 63 that is slidably connected to the upper surface of the fixed plate 5. The upper surface of the fixed plate 5 has a groove, and the bottom of the slider 63 has a matching protrusion to ensure that the slider 63 will not derail during sliding and can remain stable. A clamping plate 64 is fixedly connected to the upper surface of the slider 63. The clamping assembly also includes a motor 61. The motor 61 is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. A double-ended screw 62 is fixedly connected to the output shaft of the motor 61 on the front surface of the fixed plate 5. The two ends of the double-ended screw 62 have opposite thread directions. A sleeve 65 is fixedly connected to the rear surface of the clamping plate 64. A slide rod 67 is elastically connected to the rear surface of the clamping plate 64 through a compression spring 66. The slide rod 67 passes through and slides on the rear surface of the sleeve 65. The sleeve 65 is sleeved on the outer wall of the compression spring 66. This elastic structure design allows the slide rod 67 to adaptively adjust according to the shape and size of the component during the clamping process, providing a more stable clamping force.

[0040] Reference Figure 4 - Figure 6 The center of the positioning ring 45 and the hydraulic rod 41 are on the same axis. The right surface of the fastening bolt 43 is fixedly connected to the handwheel 42. The surface of the handwheel 42 has a recess that fits the contour of the finger, making it easy to rotate by hand. The pressure block 44 is slidably connected to the inner wall of the positioning ring 45. When the pressure block 44 and the hydraulic rod 41 are in close contact, the angle of the positioning ring 45 can be ensured to be stable. The double-ended screw 62 passes through and is rotatably connected to the inner surface of the fixed plate 5. The double-ended screw 62 passes through and is threadedly connected to the inner surface of the slider 63. The slider 63, clamping plate 64, sleeve 65, compression spring 66 and slide rod 67 are all provided in two sets, which are symmetrically distributed back and forth with the center line of the double-ended screw 62. Each set of sleeve 65, compression spring 66 and slide rod 67 is provided in multiples, which are distributed in an array on the adjacent surfaces of the two sets of clamping plates 64.

[0041] Reference Figure 1 - Figure 3The moving component includes an adjusting plate 33, which is slidably connected to the left surface of the support plate 1. The adjusting plate 33 moves in the left and right directions. Positioning plates 31 are fixedly connected to the left end of the lower surface of the adjusting plate 33 and the right end of the lower surface of the support plate 1. Rollers 32 are provided on the adjacent surfaces of the two sets of positioning plates 31. The rollers 32 are existing technology and can be implemented by those skilled in the art. Since they are existing technology, they will not be described in detail in this case. The rollers 32 can brake themselves. A locking block 35 is elastically connected to the inner wall of the rear side of the adjusting plate 33 through an elastic member 34. A push block 36 is slidably connected to the front surface of the support plate 1. A connecting rod 37 is fixedly connected to the rear surface of the push block 36. A push plate 38 is fixedly connected to the rear surface of the connecting rod 37. The push block 36, the connecting rod 37, and the push plate 38 will move synchronously. A slot 39 is opened on the inner wall of the support plate 1. The locking block 35 and the slot 39 fit together. Multiple sets of slots 39 are opened and are equidistantly distributed in the left and right directions.

[0042] Reference Figure 1 - Figure 3 The locking block 35 is slidably connected to the front surface of the adjusting plate 33. When the locking block 35 moves backward, it will squeeze the elastic element 34 to generate a reaction force. The locking block 35 is inserted into the inner wall of the slot 39, which can limit the relative position of the adjusting plate 33 and the support plate 1, so that the device can be used for tracks 2 of different widths. The right surface of the locking block 35 is set as an inclined plane that gradually slopes backward from left to right. When the inclined plane is squeezed, the locking block 35 will move backward. When the adjusting plate 33 and the support plate 1 are close, the inclined plane will be squeezed, so it can only achieve the function of unidirectional limiting. The connecting rod 37 is slidably connected to the inner wall of the support plate 1, and the push plate 38 is slidably connected to the inner wall of the support plate 1. The push plate 38 is inserted into the inner wall of the slot 39.

[0043] Working principle: First, adjust the distance between the support plate 1 and the adjusting plate 33 according to the size of the track 2. When adjusting, first place the roller 32 at the positioning plate 31 below the support plate 1 on the track 2, and then push the adjusting plate 33 toward the support plate 1. When pushing, the roller 32 at the positioning plate 31 below the adjusting plate 33 will gradually rest on the track 2 to achieve stability. When the adjusting plate 33 moves, the inclined surface of the locking block 35 will be squeezed, and the locking block 35 will retract into the adjusting plate 33 to release the obstruction. When it reaches the appropriate position, the elastic element 34 will push the locking block 35 out and insert it into the corresponding slot 39 for limiting.

[0044] At this time, the device can move horizontally and stably along the track 2, and the roller 32 can brake during the movement to ensure stability.

[0045] Then, the fixed plate 5 is raised and lowered by the hydraulic rod 41 to suit the height of the EMU maintenance section. The positioning ring 45 can rotate around the top of the hydraulic rod 41, which drives the fixed plate 5 to achieve horizontal angle adjustment to suit the orientation of the EMU maintenance section. During adjustment, the handwheel 42 is turned to drive the fastening bolt 43 to rotate, which in turn drives the pressure block 44 to move to the right to release the pressure on the hydraulic rod 41. Then, the fixed plate 5 and the positioning ring 45 are rotated to achieve angle adjustment. When the adjustment is appropriate, the handwheel 42 is turned in the opposite direction to drive the fastening bolt 43 to reverse, which in turn drives the pressure block 44 to move to the left to press the hydraulic rod 41. The angle of the fixed plate 5 and the positioning ring 45 is fixed by friction.

[0046] Motor 61 drives double-headed screw 62 to rotate, which in turn drives clamping plate 64 to open and close synchronously, thereby clamping or releasing the EMU component. When clamping, if the EMU maintenance part is irregularly shaped, compression spring 66 can automatically compress or extend according to the pressure, so that slide rod 67 fits against the surface of the component. When slide rod 67 can no longer get closer to clamp, motor 61 can be turned off.

[0047] After the maintenance is completed, the starter motor 61 drives the double-headed screw 62 to reverse, causing the slide bar 67 to open and release the clamp on the maintenance part of the EMU.

[0048] Then, press the push block 36 backward to move the connecting rod 37 and the push plate 38 backward, press the locking block 35 out of the locking groove 39, and then move the adjusting plate 33 away from the support plate 1, so that the roller 32 can be opened, making it easy to remove the device from the track 2.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support device for the maintenance of high-speed trains, comprising a support plate (1), characterized in that: The lower surface of the support plate (1) is provided with a track (2), the bottom end of the support plate (1) is provided with a moving component, and the top end of the support plate (1) is provided with an adjusting clamping mechanism. The adjusting clamping mechanism includes an adjusting component, which includes a hydraulic rod (41). A fixing plate (5) is provided at the top of the hydraulic rod (41). A positioning ring (45) is fixedly connected to the lower surface of the fixing plate (5). The positioning ring (45) is rotatably connected to the top of the outer wall of the hydraulic rod (41). A fastening bolt (43) is threaded through and threaded onto the right surface of the positioning ring (45). A pressure block (44) is rotatably connected to the left surface of the fastening bolt (43). The adjusting clamping mechanism further includes a clamping assembly, which includes a slider (63) that passes through and is slidably connected to the upper surface of the fixed plate (5). A clamping plate (64) is fixedly connected to the upper surface of the slider (63).

2. The support device for EMU maintenance according to claim 1, characterized in that: The clamping assembly also includes a motor (61), which is disposed on the front surface of the fixing plate (5). The output shaft of the motor (61) is fixedly connected to a double-headed screw (62). A sleeve (65) is fixedly connected to the rear surface of the clamping plate (64). A slide rod (67) is elastically connected to the rear surface of the clamping plate (64) through a compression spring (66).

3. The support device for EMU maintenance according to claim 1, characterized in that: The moving component includes an adjusting plate (33), which is slidably connected to the left surface of the support plate (1). Positioning plates (31) are fixedly connected to the left end of the lower surface of the adjusting plate (33) and the right end of the lower surface of the support plate (1). Rollers (32) are provided on the adjacent surfaces of the two sets of positioning plates (31). A locking block (35) is elastically connected to the inner wall of the rear side of the adjusting plate (33) through an elastic element (34). A push block (36) is slidably connected to the front surface of the support plate (1). A connecting rod (37) is fixedly connected to the rear surface of the push block (36). A push plate (38) is fixedly connected to the rear surface of the connecting rod (37). A slot (39) is provided on the inner wall of the support plate (1).

4. The support device for EMU maintenance according to claim 1, characterized in that: The center of the positioning ring (45) and the hydraulic rod (41) are on the same axis. A handwheel (42) is fixedly connected to the right surface of the fastening bolt (43). The pressure block (44) is slidably connected to the inner wall of the positioning ring (45).

5. A support device for EMU maintenance according to claim 2, characterized in that: The double-ended screw (62) passes through and is rotatably connected to the inner surface of the fixed plate (5), and the double-ended screw (62) passes through and is threadedly connected to the inner surface of the slider (63).

6. A support device for EMU maintenance according to claim 2, characterized in that: The slide bar (67) passes through and is slidably connected to the rear surface of the sleeve (65), which is sleeved on the outer wall of the compression spring (66).

7. A support device for EMU maintenance according to claim 3, characterized in that: The card block (35) is slidably connected to the front surface of the adjusting plate (33), the card block (35) is inserted into the inner wall of the card slot (39), and the right surface of the card block (35) is set as an inclined surface that gradually slopes backward from left to right.

8. A support device for EMU maintenance according to claim 3, characterized in that: The connecting rod (37) is slidably connected to the inner wall of the support plate (1), the push plate (38) is slidably connected to the inner wall of the support plate (1), and the push plate (38) is inserted into the inner wall of the slot (39).

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