Accurate positioning auxiliary device for dismounting and mounting of subway train coupler

Abstract

The utility model provides an accurate positioning auxiliary device for dismounting and mounting a subway train coupler. The accurate positioning auxiliary device comprises a main frame, a front supporting assembly and a rear supporting assembly. The total frame is fixed to a hydraulic lift truck platform, a first supporting part is arranged at the front end of the total frame, and a second supporting part is arranged at the rear end of the total frame. And the front supporting assembly is installed on the first supporting part, and the front supporting assembly comprises a movable bottom plate, a supporting column and a supporting rod. The movable bottom plate freely moves on the first supporting part, the supporting column is arranged on the movable bottom plate, and the supporting rod is arranged on the supporting column. And the rear supporting assembly is installed on the second supporting part, and the rear supporting assembly comprises a rear support and a rear supporting block. The rear support is connected with the second supporting part in a sliding mode, and the rear supporting block is arranged on the rear support. The device can be directly installed on an original hydraulic lifting platform car when needed to be used, and can be detached from the hydraulic lifting platform car to be stored additionally after being used.

Description

Technical Field

[0001] The utility model relates to the field of urban rail transit vehicle maintenance, and particularly relates to a precise positioning auxiliary device for the disassembly and assembly of subway train couplers. Background Technique

[0002] With the frequent use of subway trains in daily operation, the coupler, as a key component connecting train carriages, is of great importance. The coupler not only bears the traction force and braking force between train carriages but also is directly related to the safety and stability of the train. In actual operation, subway train couplers may malfunction or their performance may decline due to factors such as long-term wear, fatigue, and corrosion. Once the coupler malfunctions, it may lead to an insecure connection between train carriages or even serious accidents such as carriage separation, posing a serious threat to the lives and property safety of passengers. To avoid such situations, subway maintenance companies usually formulate strict coupler maintenance and replacement systems. After the train has been used for a certain number of years or traveled a certain mileage, a comprehensive special inspection of the coupler is carried out to ensure that it has not been damaged or has no hidden dangers affecting the safe operation of the train, and necessary repairs or replacements are made according to the inspection results. The process of replacing the coupler requires professional technicians to operate, including steps such as disassembling the old coupler, installing the new coupler, and adjusting connection parameters. During the replacement process, a comprehensive inspection and testing of the new coupler are also required to ensure that its performance meets the standards and requirements.

[0003] In short, the replacement of subway train couplers is one of the important measures to ensure the safe operation of trains and the safety of passengers. By regularly maintaining and replacing the coupler, potential safety hazards can be detected and eliminated in a timely manner, ensuring the normal operation of the train.

[0004] In the daily process of replacing the coupler, according to the maintenance manual instructions (taking the fully automatic coupler as an example), the disassembly process is as follows: First, remove the air pipeline connecting the coupler to the train and disconnect the coupler aviation plug connector. Subsequently, remove the stop fasteners, place the special tooling for the fully automatic coupler on the hydraulic lift truck, and push the hydraulic truck to directly below the fully automatic coupler. Align the tooling with the front and rear support positions of the coupler, raise the platform of the hydraulic lift truck until the front and rear ends of the tooling simultaneously support the fully automatic coupler. Then remove the fixed bolts on both sides of the coupler, slowly lower the platform of the hydraulic lift truck, and use the overhead crane to lift away the fully automatic coupler. The installation process is the opposite, and a torque of 1700 N·m needs to be applied after the coupler fixed bolts are tightened.

[0005] However, in actual operation, the above maintenance process has the following 4 problems:

[0006] Problem 1: When aligning the coupler fixing bolts, the hydraulic vehicle is pushed in the front-back direction, and the vertical direction can be completed by hydraulics. However, for the left-right adjustment, the hydraulic platform vehicle needs to be moved significantly. During the movement, the coupler will collide with the car body, and the small wheels of the hydraulic vehicle are prone to getting stuck in the grooves between the rails and the ground, making the operation inconvenient.

[0007] Problem 2: When subway trains connect different carriages, different types of couplers are used, which can be divided into: fully automatic couplers, semi-automatic couplers, and semi-permanent couplers, each with different functions. Due to the large differences in their structural dimensions, the original coupler tooling prepared three sets of replaceable support devices. When installing the corresponding coupler, the tooling support needs to be replaced first before use, which consumes time and effort. And when the selection is inappropriate, safety problems such as coupler falling may occur.

[0008] Problem 3: According to the installation position of the coupler fixing bolts, at the connection between the coupler tail and the car body, when operating as above with a hydraulic lifting platform vehicle and the original tooling, due to the influence of the installation position and the hydraulic vehicle, there is little space left inside. Therefore, maintenance personnel need to screw in and install the coupler fixing bolts in a narrow space. The operating environment is uncomfortable, resulting in reduced efficiency and it is easy to cause the operator to lose balance and fall. Even when two people do not cooperate properly, events such as pinching may occur.

[0009] Problem 4: Due to the design structure of the original tooling, its bottom directly contacts the hydraulic vehicle platform without other fixing measures. And the hydraulic vehicle models at each maintenance base are different, and the sizes of their upper platforms are also different. When using a small-sized hydraulic vehicle, the contact area of the bottom surface of the tooling for support is small, which will pose a safety hazard. Specifically, during the operation process, any accidental lateral impact force may become the trigger point, causing the tooling to lose stability and then tip over. Once the tooling tips over, it may not only damage itself, but also cause the fully automatic coupler carried to fall. Especially in a space-constrained environment, this sudden situation will greatly increase the accident risk and may lead to serious equipment damage or even personal injury accidents.

[0010] The present utility model aims to solve the above problems. Content of the utility model

[0011] To solve the above problems, the present utility model proposes a precise positioning auxiliary device for the disassembly and assembly of subway train couplers, including:

[0012] A general framework, fixed on the hydraulic lifting vehicle platform, with a first support part provided at the front end of the general framework and a second support part provided at the rear end of the general framework;

[0013] A front support assembly, installed on the first support part, and the front support assembly includes:

[0014] A movable bottom plate that moves freely on the first support portion;

[0015] Support columns, arranged on the movable bottom plate;

[0016] Support rods, arranged on the support columns, and the support rods hold the center axis of the coupler;

[0017] A rear support assembly, installed on the second support portion, and the rear support assembly includes:

[0018] A rear bracket, slidably connected to the second support portion;

[0019] Rear support blocks, arranged on the rear bracket, and the rear support blocks support the tail end of the coupler.

[0020] In one embodiment, the overall frame includes:

[0021] Two rods, located on the left and right sides of the overall frame, and the two rods are fixedly attached to the two sides of the hydraulic lifting vehicle platform;

[0022] A front support plate, serving as the first support portion, and the front support plate is respectively connected to the front ends of the two rods, supporting the front support assembly and restricting the movement range of the front support assembly;

[0023] Guide rails, serving as the second support portion, and the guide rails are respectively connected to the rear ends of the two rods, supporting the rear support assembly. The guide rails can move left and right, and the guide rails cooperate with the two rods and the front support plate to adjust the left - right spacing of the overall frame.

[0024] In one embodiment, the overall frame further includes two side bottom plates and a guide rail reinforcement plate. The two side bottom plates are respectively arranged at the bottoms of the front ends of the two rods, and the guide rail reinforcement plate is arranged at the bottom of the guide rail.

[0025] In one embodiment, the overall frame further includes a middle bottom plate, and the middle bottom plate is arranged at the bottom of the middle of the front support plate, and the middle bottom plate is used to fix the front end of the coupler.

[0026] In one embodiment, the overall frame further includes a spacer rod, and the spacer rod is arranged on the front support plate, and emergency gaskets are placed on the spacer rod.

[0027] In one embodiment, the overall frame further includes four lifting rings, which are respectively arranged at the front and rear ends of the two rods.

[0028] In one embodiment, the movable bottom plate includes:

[0029] A lower bottom plate, connected to the lower ends of the support columns;

[0030] Four universal wheels are provided at the bottom of the lower bottom plate.

[0031] In one embodiment, the front support assembly further includes a connecting member, the connecting member is disposed on the lower bottom plate, and the connecting member cooperates with the middle bottom plate to fix the front end of the coupler.

[0032] In one embodiment, the front support assembly further includes a limiting member;

[0033] The upper end of the support rod is provided with a thread, and the lower end of the support rod cooperates with the limiting member to hold the central axis of the coupler;

[0034] The upper end of the support column contacts the limiting member.

[0035] In one embodiment, the precise positioning auxiliary device for disassembling and assembling the subway train coupler further includes: a limiting handle, and the limiting handle includes:

[0036] A frame body;

[0037] A first limiting assembly disposed on the first surface of the frame body;

[0038] A second limiting assembly, the left-right distance of the second limiting assembly is smaller than the left-right distance of the first limiting assembly, and the second limiting assembly is disposed on the second surface of the frame body;

[0039] A positioning assembly disposed at the bottom of the frame body, and the positioning assembly cooperates with the rear support block to position the rear end of the coupler at the support position of the rear support block.

[0040] The precise positioning auxiliary device for disassembling and assembling the subway train coupler of the present utility model has the following beneficial effects:

[0041] 1. The device is designed with a flexible adjustment mechanism, allowing for front-back, left-right and minor vertical adjustments in the horizontal plane, without the need to move the hydraulic platform truck significantly, reducing the risk of collision between the coupler and the car body. By strengthening the bottom support structure, it ensures that the device is stable and does not shake during the adjustment process, avoiding the small wheels of the hydraulic truck from getting stuck in the groove and improving the operation convenience.

[0042] 2. The device adopts a modular design, which can adapt to three different sizes of couplers: fully automatic couplers, semi-automatic couplers, and semi-permanent couplers, without the need to frequently replace the tooling support, saving time and improving work efficiency. By simply adjusting or replacing the module, it can adapt to different coupler types, reducing the operation complexity and error rate.

[0043] 3. The device is designed with a clever coupler lifting and swing angle mechanism, which can create a larger operating space at the connection between the coupler tail and the car body, facilitating comfortable operation for maintenance personnel. By optimizing the structural design, the operation time of the operator in the narrow high-altitude space is reduced, the risks of unstable center of gravity, falling or tumbling are lowered, and at the same time, accidents such as pinching are avoided.

[0044] 4. The bottom of the device contacts the side of the platform through the two side rods, with strong stability, ensuring that the tooling is stable and does not tip over. Brief Description of the Drawings

[0045] Figure 1 is a schematic structural diagram of a precise positioning auxiliary device for subway train coupler disassembly and assembly according to an embodiment of the present utility model;

[0046] Figure 2 is a schematic structural diagram of the overall framework according to an embodiment of the present utility model;

[0047] Figure 3 is a schematic structural diagram of the front support assembly according to an embodiment of the present utility model;

[0048] Figure 4 is a schematic structural diagram of the rear support assembly according to an embodiment of the present utility model;

[0049] Figure 5 is a schematic structural diagram of the limit handle according to an embodiment of the present utility model;

[0050] Figure 6 is a schematic diagram of the precise positioning auxiliary device for subway train coupler disassembly and assembly according to an embodiment of the present utility model applied to a hydraulic vehicle platform with a width of 80 cm;

[0051] Figure 7 is a schematic diagram of the precise positioning auxiliary device for subway train coupler disassembly and assembly according to an embodiment of the present utility model applied to a hydraulic vehicle platform with a width of 60 cm;

[0052] Figure 8 is a schematic diagram of the left swing angle effect of the coupler;

[0053] Figure 9 is a schematic diagram of the left and right swing angles of the coupler; and

[0054] Figure 10 is a schematic diagram of the overall use effect of the precise positioning auxiliary device for subway train coupler disassembly and assembly according to an embodiment of the present utility model.

[0055] Reference Signs

[0056] 1. General framework; 11. Rod; 12. Front support plate; 13. Guide rail; 14. Side bottom plate; 15. Middle bottom plate; 16. Spacer rod; 17. Suspension ring; 18. Guide rail reinforcement plate; 2. Front support assembly; 21. Lower bottom plate; 22. Universal wheel; 23. Support rod; 24. Support column; 25. M24 limit nut; 26. Pin; 3. Rear support assembly; 31. Rear support block; 32. Rear bracket; 4. Limit handle; 41. Wide-side handle; 42. Narrow-side handle. Detailed implementation

[0057] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0058] To make the most of the market - common hydraulic lifting platform truck and save costs. The precisely - positioned auxiliary device designed this time can be directly installed on the original hydraulic lifting platform truck when needed and removed from the hydraulic lifting platform truck and stored separately after use.

[0059] According to the on - site needs to solve the problems that the coupler installation requires stable lifting in place, there should be more space for operators to install fixing bolts after lifting, more simple and efficient alignment, and avoid the above - mentioned problems. Based on the external dimensions of three types of couplers, the present utility model designs a general precisely - positioned auxiliary device. Taking the market - common hydraulic platform truck as the base, it can make adjustments in four directions, facilitating installation alignment. And when the rear end is fixed, the front end can move left and right to generate a swing angle, thus creating an operating environment and providing more space for maintenance personnel to operate. As Figure 1 shown, the present utility model proposes a precisely - positioned auxiliary device for the disassembly and assembly of subway train couplers, including: a general framework 1, a front support assembly 2, and a rear support assembly 3.

[0060] The general framework 1 is used to be fixed on the platform of the hydraulic lifting vehicle. A first support part is provided at the front end of the general framework 1, and a second support part is provided at the rear end of the general framework 1. As Figure 2As shown, in this embodiment, the general framework 1 includes: two rods 11, a front support plate 12, and a guide rail 13. The two rods 11 are arranged on the left and right sides of the general framework 1 and are used as the supports on the left and right sides of the general framework 1. Moreover, the two rods 11 are fixedly attached to the two sides of the hydraulic lifting platform. Preferably, in this embodiment, the two rods 11 are two angle irons, and there are two rows of size adjustment holes at the upper parts of the two rods 11 for adjusting the front-to-back spacing of the general framework 1 according to the usage requirements. The front support plate 12 serves as the first support part and is respectively connected to the front ends of the two rods 11, used for supporting the front support assembly 2 and at the same time restricting the movable range of the front support assembly 2. The guide rail 13 serves as the second support part and is respectively connected to the rear ends of the two rods 11 to support the rear support assembly 3. The guide rail 13 can move left and right, which is beneficial for adjusting the installation position later. The guide rail 13 cooperates with the two rods 11 and the front support plate 12 to adjust the left-to-right spacing of the general framework 1 so as to meet various sizes of general-purpose hydraulic platform trolleys on the market. Preferably, in this embodiment, the guide rail 13 is a set of C-SH2R28-640 guide rails.

[0061] Furthermore, the general framework 1 further includes two side bottom plates 14 and a guide rail reinforcement plate 18. The two side bottom plates 14 are respectively arranged at the bottoms of the front ends of the two rods and are used to improve the strength of the general framework 1 and make the front heights of this precise positioning auxiliary device equal. The guide rail reinforcement plate 18 is arranged at the bottom of the guide rail to strengthen the strength of the rear part of the general framework 1.

[0062] Furthermore, the general framework 1 further includes a middle bottom plate 15, which is arranged at the bottom in the middle of the front support plate 12 and is used to fix the front end of the coupler. See Figure 2 . Preferably, in this embodiment, there are two rows of holes opened along the front-to-back direction in the middle of the middle bottom plate 15, and these two rows of holes are used to cooperate with the pins to fix the front end of the coupler.

[0063] Furthermore, the general framework 1 further includes a gasket rod 16, which is arranged on the front support plate 12 and is used to place gaskets of various specifications for emergency use.

[0064] Furthermore, the general framework 1 further includes four lifting rings 17, which are respectively arranged at the front and rear ends of the two rods 11 and are convenient for hoisting by a traveling crane in special cases.

[0065] The front support assembly 2 is installed on the first support part. The front support assembly includes: a movable bottom plate, a support column 24, and a support rod 23. See Figure 3。The movable bottom plate can move freely within the first support portion. The support column 24 is disposed on the movable bottom plate, the support rod 23 is disposed on the support column 24, and the support rod 23 holds the coupler central axis. In this embodiment, the movable bottom plate includes a lower bottom plate 21 and four universal wheels 22. The lower bottom plate 21 is connected to the lower end of the support column 24, and the lower bottom plate 21 serves to connect the support column 24 and the lower universal wheels 22. The four universal wheels 22 are disposed at the bottom of the lower bottom plate 21. In this embodiment, preferably 4 two-inch universal wheels are used to exert the bearing capacity and enable the front support assembly 2 to move freely on the front support plate 12.

[0066] Further, the front support assembly 2 further includes a limiting member. The upper end of the support rod 23 is provided with a thread, and the lower end of the support rod 23 cooperates with the limiting member to hold the coupler central axis. The upper end of the support column 24 contacts the limiting member and is responsible for supporting the support rod. In this embodiment, preferably, the limiting member is two M24 limiting nuts 25, and through the cooperation of the double nuts, it is used to adjust the height of the support rod 23. Specifically, through the thread and the limiting member as a limiting fit, it is used to hold the coupler central axis, and all three types of couplers meet the dimensions.

[0067] Further, the front support assembly 2 further includes a connecting member, which is disposed on the lower bottom plate 21. The connecting member cooperates with the middle bottom plate 15 in the general frame 1 to fix the front end of the coupler. In this embodiment, preferably, the connecting member is a pin 26, see Figure 3 。When it is necessary to fix the front end of the coupler, the pin 26 is inserted into the opening in the middle of the middle bottom plate for use.

[0068] The rear support assembly 3 is installed in the second support portion. The rear support assembly includes a rear bracket 32 and a rear support block 31, see Figure 4 。The rear bracket 32 is slidably connected to the second support portion. In this embodiment, the rear bracket 32 is connected to the guide rail 13 in the general frame 1 to fix the rear support block 31. The rear support block 31 is disposed on the rear bracket 32. Through the measurement of the dimensional structures of the three types of couplers, the rear support block 31 can be used for all three types of couplers without the need to be replaced with the model, and it serves to support the coupler end.

[0069] The precise positioning auxiliary device for the disassembly and assembly of the subway train coupler described above mainly solves the problems of fixed lifting of the coupler, efficient alignment, and generating a swing angle at the coupler end to create an operation space.

[0070] Further, the precise positioning auxiliary device for the disassembly and assembly of the subway train coupler further includes a limiting handle 4. The limiting handle 4 mainly solves the problem of the initial placement position of the coupler lifted by the crane onto a precise positioning auxiliary device for the disassembly and assembly of the subway train coupler (including the general frame 1, the front support assembly 2, and the rear support assembly 3) described above, making its initial position centered and more convenient for subsequent alignment. As Figure 5As shown in the figure, the limit handle 4 includes: a frame body, a first limit component, a second limit component, and a positioning component 43. The first limit component is arranged on the first surface of the frame body. The left - right spacing of the second limit component is smaller than that of the first limit component, and the second limit component is arranged on the second surface of the frame body. The positioning component 43 is arranged at the bottom of the frame body. The positioning component cooperates with the rear support block 31 to position the tail end of the coupler at the support position on the rear support block 31. Specifically, the protruding end face (i.e., the positioning component 43) of the limit handle 4 cooperates with the lower groove of the rear support block 31 to confirm the position. Then, by using the spacing between the limit handles 4 and the size of the rectangular installation plane at the tail end of the coupler, the same clearance can be achieved on both sides for placement. In this embodiment, the first limit component includes two wide - face side handles 41, and the second limit component includes two narrow - face side handles 42. Refer to Figure 5 . The frame body is composed of four 250 - mm rectangular tubes and two 690 - mm rectangular tubes. The two narrow - face side handles 42 are arranged on the two inner 250 - mm rectangular tubes, and the two wide - face side handles 41 are arranged on the two outer 690 - mm rectangular tubes. Moreover, the wide - face side handles 41 and the narrow - face side handles 42 are arranged in different directions. There is a limit space between the two wide - face side handles 41, and a limit space is also formed between the two narrow - face side handles 42. It can be used on both the front and back sides. For example, when installing a full - automatic coupler, hold the narrow face and use the wide face for alignment; when installing a semi - automatic coupler and a semi - permanent coupler, hold the wide face and use the narrow face for alignment. The positioning component 43 is composed of a 75 - mm rectangular tube and a 95 - mm rectangular tube.

[0071] When installing the coupler, two people need to cooperate in the operation. First, confirm the load capacity of the hydraulic vehicle and the size of its upper platform, and adjust the overall frame 1 of this precise positioning auxiliary device to a position that conforms to the size of the hydraulic vehicle platform (refer to Figure 6 、 Figure 7 ), place it on the platform, and confirm that the two side rods 11 are in contact with the side of the platform. Move the front support assembly 2 to the middle position, insert a pin 26 on the lower bottom plate 21 to fix it on the middle bottom plate 15 of the overall frame 1, and move the rear support assembly 3 to the middle position through the rear linear guide 13.

[0072] Use a crane to lift the required coupler to directly above the hydraulic vehicle, and select the use surface of the "limit handle" 4 according to the form of the installed coupler. Taking the full - automatic coupler as an example, hold the narrow face (i.e., the two narrow - face side handles 42), insert the protruding end at the bottom into the groove in the middle of the rear support block 31, slowly lower the coupler, and confirm that the installation surface at the tail end of the coupler descends parallel and centered along the wide - face armrest of the "limit handle" 4. When the bottom of the installation surface at the tail end of the coupler contacts both sides of the rear support block 31, at this time, adjust the limit nut of the support rod 23 in the front support assembly 2 until the coupler central axis contacts the support rod 23 of the front support assembly. At this time, the coupler has been correctly placed on this device.

[0073] During installation, one person is responsible for guiding and observing the positional relationship between the mounting surface at the end of the coupler and the mounting holes on the car body; another person holds the handrail of the hydraulic cart and adjusts the overall position of the coupler according to the instructions of the other person. The front-back position can be adjusted by pushing or pulling the hydraulic cart, the left-right position can be adjusted by the universal wheels 22 in the front support assembly 2 and the rear linear guide rail 13 to move left and right, and the up-down position can be adjusted by the lifting device of the hydraulic cart. After the positions are aligned, press the two mounting surfaces closely together to ensure that the end of the coupler does not displace. Pull out the front pin 26 and move the front support assembly 2 to the left to make the front end of the coupler generate a swing angle (see Figure 8 、 Figure 9 ), creating space on the right side. Through this space, bring the right coupler fixing bolt into the installation position and pre-tighten it. Then move the front support assembly 2 to the right to create space on the left side, bring in and pre-tighten the left coupler fixing bolt. After both sides are pre-tightened, lower the hydraulic cart platform until the coupler is separated from this device, withdraw the hydraulic cart backward, use a torque wrench to apply torque to the coupler fixing bolts, and paint color marks. The installation of the coupler fixing bolts is completed.

[0074] The disassembly process is the opposite. Lift the hydraulic platform to the bottom of the coupler, note that the rear support block 31 contacts the bottom of the mounting surface at the end of the coupler, and hold the overall coupler. After removing the coupler fixing bolts, lower and withdraw the hydraulic lifting platform cart. Figure 10 This is the overall usage effect diagram of this device.

[0075] The precise positioning auxiliary device for the disassembly and assembly of subway train couplers of the present utility model has the following beneficial effects:

[0076] 1. This device is designed with a flexible adjustment mechanism, allowing for front-back, left-right, and minor vertical adjustments in the horizontal plane without significantly moving the hydraulic platform cart, reducing the risk of collision between the coupler and the car body. By strengthening the bottom support structure, it ensures that the device is stable and does not shake during the adjustment process, avoiding the small wheels of the hydraulic cart from getting stuck in the grooves and improving the operation convenience.

[0077] 2. This device adopts a modular design and can adapt to three different sizes of couplers, namely, fully automatic couplers, semi-automatic couplers, and semi-permanent couplers, without the need to frequently replace the tooling support, saving time and improving work efficiency. By simple adjustment or replacement of modules, it can adapt to different coupler types, reducing the operation complexity and error rate.

[0078] 3. This device is designed with a clever coupler lifting and swing angle mechanism, which can create a larger operating space at the connection between the coupler tail and the car body, facilitating comfortable operation for maintenance personnel. Through optimized structural design, it reduces the operation time of the operator in the narrow high-altitude space, reduces the risk of unstable center of gravity, falling, or dropping, and at the same time avoids accidents such as pinching.

[0079] 4. The bottom of this device contacts the side of the platform through the two side rods, with strong stability, ensuring that the tooling is stable and does not tip over.

[0080] The above embodiments are only further descriptions of the present invention, rather than other forms of limitation on the present invention. The present invention may also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding modifications and changes according to the present invention, but these corresponding modifications and changes should all fall within the protection scope of the present invention.

Claims

1. An accurate positioning auxiliary device for the disassembly and assembly of subway train couplers, characterized in that, Comprising: A general framework, fixed on the platform of the hydraulic lift truck. A first support part is provided at the front end of the general framework, and a second support part is provided at the rear end of the general framework; A front support assembly, installed on the first support part, the front support assembly comprising: A movable bottom plate, freely movable on the first support part; Support columns, provided on the movable bottom plate; Support rods, provided on the support columns, and the support rods hold the middle axis of the coupler; A rear support assembly, installed on the second support part, the rear support assembly comprising: A rear bracket, slidably connected to the second support part; A rear support block, provided on the rear bracket, and the rear support block supports the tail end of the coupler.

2. The precise positioning auxiliary device for the disassembly and assembly of subway train couplers according to claim 1, characterized in that, The general framework includes: Two rods, located on the left and right sides of the general framework, and the two rods are fixedly attached to both sides of the hydraulic lift truck platform; A front support plate, serving as the first support part, the front support plate is respectively connected to the front ends of the two rods, supports the front support assembly and limits the movement range of the front support assembly; Guide rails, serving as the second support part, the guide rails are respectively connected to the rear ends of the two rods, support the rear support assembly, the guide rails can move left and right, and the guide rails cooperate with the two rods and the front support plate to adjust the left and right spacing of the general framework.

3. The precise positioning auxiliary device for subway train coupler disassembly and assembly according to claim 2, characterized in that, The general framework further includes two side bottom plates and guide rail reinforcement plates. The two side bottom plates are respectively provided at the bottoms of the front ends of the two rods, and the guide rail reinforcement plates are provided at the bottoms of the guide rails.

4. The precise positioning auxiliary device for the disassembly and assembly of the subway train coupler according to claim 2, characterized in that, The general framework further includes a middle bottom plate, and the middle bottom plate is provided at the bottom of the middle of the front support plate, and the middle bottom plate is used to fix the front end of the coupler.

5. The precise positioning assistance device for the disassembly and assembly of subway train couplers according to claim 2, wherein The general framework further includes a gasket rod, and the gasket rod is provided on the front support plate, and emergency gaskets are placed on the gasket rod.

6. The precise positioning auxiliary device for the disassembly and assembly of subway train couplers according to claim 2, characterized in that, The general framework further includes four lifting rings, respectively provided at the front and rear ends of the two rods.

7. The precise positioning auxiliary device for the disassembly and assembly of the subway train coupler according to claim 4, wherein The movable bottom plate includes: A lower bottom plate, connected to the lower ends of the support columns; Four universal wheels, provided at the bottom of the lower bottom plate.

8. The precise positioning auxiliary device for the disassembly and assembly of the subway train coupler according to claim 7, characterized in that, The front support assembly further includes a connecting piece, and the connecting piece is provided on the lower bottom plate, and the connecting piece cooperates with the middle bottom plate to fix the front end of the coupler.

9. The precise positioning auxiliary device for the disassembly and assembly of the subway train coupler according to claim 1, characterized in that, The front support assembly further includes a limiting piece; The upper end of the support rod is provided with a thread, and the lower end of the support rod cooperates with the limiting piece to hold the middle axis of the coupler; The upper end of the support column contacts the limiting piece.

10. The precise positioning auxiliary device for subway train coupler disassembly and assembly according to claim 1, characterized in that, The precise positioning auxiliary device for disassembling and assembling the subway train coupler further includes: a limiting handle, and the limiting handle includes: A frame body; A first limiting assembly, provided on the first surface of the frame body; A second limiting assembly, the left and right spacing of the second limiting assembly is smaller than the left and right spacing of the first limiting assembly, and the second limiting assembly is provided on the second surface of the frame body; A positioning assembly, provided at the bottom of the frame body, and the positioning assembly cooperates with the rear support block to position the support position of the tail end of the coupler on the rear support block.

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