A motor node dismounting and pressing system and method

Abstract

The application discloses a motor node dismounting and pressing assembly system and method for a motor train unit, which comprises a motor, a node mounting seat arranged on the side of the motor, and motor nodes in interference fit with mounting holes; the system further comprises a motor fixing platform, a floating box, a connecting rod mechanism and a pressing frame mechanism; the motor fixing platform horizontally holds up the motor; the floating box comprises vertically-lifted floating support shafts; the connecting rod mechanism is arranged on the top of the floating support shafts; the pressing frame mechanism and the connecting rod mechanism are rotationally connected; the pressing frame mechanism comprises a pressure bearing frame, a hydraulic cylinder, a guide tool and a clamping sleeve; the clamping sleeve is fixed to the pressure bearing frame and abuts against the node mounting seat; one end of the hydraulic cylinder is horizontally fixed to the pressure bearing frame, and the other end is a movable end; the movable end abuts against the guide tool; the guide tool is in contact connection with the motor node; the hydraulic cylinder is in communication with a hydraulic power unit; and the hydraulic power unit provides power for the hydraulic cylinder, so that the problems that the motor node cannot be quickly positioned and the node mounting seat is prone to deformation are solved.

Description

Technical Field

[0001] This invention relates to the field of rail transit vehicle maintenance technology, and more specifically, to a system and method for unloading and pressing motor nodes of a motor train. Background Technology

[0002] During operation, the motor mounting nodes of rail transit vehicles are subject to vibration and shaking, which may lead to internal defects such as fatigue deformation and loosening. If the motor mounting nodes become loose or detached during operation, it can cause a serious safety accident. Therefore, it is necessary to regularly remove, inspect, and re-press the motor nodes. In recent years, both domestically and internationally, the pressing and removal of motor nodes has largely adopted the manual positioning method using hydraulic cylinders. Typically, the motor is placed on a fixed base, and operators manually position the motor node using a hydraulic cylinder to push it out or press it in.

[0003] The existing technology has the following disadvantages: (1) The stress structure of this maintenance tool is unbalanced. When the hydraulic cylinder is operated to press and unload, the stress on the motor node mounting seat will be uneven, resulting in motor displacement or even deformation of the node mounting seat; (2) At the same time, the structure of this tool is loose, making it difficult for personnel to operate and use. It is not flexible and difficult to operate. Each operation can only be performed at a single station, resulting in low work efficiency and low input and output of the equipment. Summary of the Invention

[0004] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides a system and method for pressing and unloading motor nodes in high-speed trains. This system employs a motor fixing platform, a floating box, a linkage mechanism, a pressing frame mechanism, and a hydraulic power unit. The motor fixing platform is located at the bottom of the motor and is used to horizontally support and limit its movement. The floating box is located on one side of the motor fixing platform and includes a vertically movable floating support shaft. The linkage mechanism is located at the top of the support shaft, and the pressing frame mechanism is fixed to the movable end of the linkage mechanism. The vertical height and horizontal position of the pressing frame mechanism can be adjusted separately through the floating box and the linkage mechanism. The pressing frame mechanism is equipped with a guide fixture that engages with the node mounting seat on the side of the motor. The mounting hole of the node mounting seat is used to accommodate and fix the motor node. The hydraulic power unit is activated to drive the pressing frame mechanism, which in turn pushes the guide fixture, thereby pressing or unloading the motor node. This system solves the problems of inability to quickly position the motor node and the easy deformation of the motor node mounting seat.

[0005] To achieve the above objectives, according to one aspect of the present invention, a train motor node unloading and pressing system is provided, comprising:

[0006] The system comprises a motor mounting platform, a floating box, a linkage mechanism, a pressure frame mechanism, and a hydraulic power unit. The motor mounting platform horizontally supports the motor. The floating box is located on one side of the motor mounting platform and includes a vertically lifting floating support shaft. The linkage mechanism is located on top of the floating support shaft. The pressure frame mechanism is rotatably connected to the linkage mechanism. The pressure frame mechanism includes a pressure-bearing frame, a hydraulic cylinder, a guide fixture, and a retaining sleeve. The retaining sleeve is fixed to the pressure-bearing frame and abuts against the node mounting seat. One end of the hydraulic cylinder is horizontally fixed to the pressure-bearing frame, and the other end is a movable end that abuts against the guide fixture. The guide fixture is in contact with the motor node. The hydraulic cylinder is connected to the hydraulic power unit, which provides power to the hydraulic cylinder.

[0007] Furthermore, the linkage mechanism includes a high-strength connecting rod and a pressure frame fixing block. One end of the high-strength connecting rod is rotatably connected to the floating support shaft, and the other end is rotatably connected to the pressure frame fixing block. One or more rotating pairs are provided between the two ends of the high-strength connecting rod.

[0008] Furthermore, the frame pressing mechanism includes a frame pressing support spring and a frame pressing connecting block. The two ends of the frame pressing support spring abut against the pressure-bearing frame and the frame pressing fixing block, respectively. The frame pressing connecting block is fixed to the bottom of the frame pressing frame and is fixedly connected to the frame pressing fixing block.

[0009] Furthermore, the sleeve has a sliding channel at its center for the guide fixture to pass through. The guide fixture includes a guide block and a pressure block. The guide block is slidably connected to the mounting hole and the sliding channel. The guide block has a slot on the side facing the motor node, which limits the motor node. The pressure block is detachably connected to the movable end.

[0010] Furthermore, the pressure frame mechanism includes a handrail, which is fixed to the pressure-bearing frame.

[0011] Furthermore, the floating tank includes a tank body, a counterweight, a transmission chain, and a sprocket. The sprocket is disposed in the tank body, and the transmission chain and the sprocket are connected in a transmission manner. The two ends of the transmission chain are respectively fixed to the counterweight and the floating support shaft, and the side of the floating support shaft is slidably connected to the tank body through a slider.

[0012] Furthermore, the floating tank includes a locking device and a foot switch. The locking device is fixed to the tank body and abuts against the floating support shaft. The foot switch is signal-connected to the locking device.

[0013] Furthermore, the motor fixing platform includes a motor support, an angle-adaptive platform, a limiting device, and a guiding device. The hydraulic power unit is installed at the bottom of the motor support, and the limiting device is fixedly installed on the top surface of the motor support. The angle-adaptive platform is installed on the limiting device and the limiting device locks the angle-adaptive platform. The guiding device is fixedly installed on the angle-adaptive platform and positions the motor.

[0014] According to another aspect of the present invention, a method for unloading and pressing a power train motor node is provided, which is implemented using the aforementioned power train motor node unloading and pressing system, and includes the following steps:

[0015] S100, Motor Positioning: Before the motor node unloading or pressing operation, the motor is hoisted onto the angle adaptive platform and the motor is limited by the limiting device and the guiding device, with the motor node facing one side of the floating box.

[0016] S200, adjust the height of the pressing frame mechanism, step on the foot switch, release the locking device from the restriction of the floating support shaft, grab the handrail and move the pressing frame mechanism to the horizontal height of the node mounting seat;

[0017] S301, using a guide fixture for centering, locking the height of the pressing frame mechanism, aligning the pressing frame mechanism with the height position of the motor node, inserting a guide block into the mounting hole of the motor node, with part of the guide block protruding from the mounting hole to one side, holding the handle and moving the pressing frame closer to the node mounting seat via the linkage mechanism until the sliding channel in the sleeve is fitted onto the outside of the guide block, the sleeve abutting against the side of the motor node, completing the centering of the pressing frame mechanism and the motor node, releasing the foot switch, and the locking device locking the pressing frame mechanism;

[0018] S400, press-fit the motor node, place the motor node into the slot of the guide block, connect the press block to the movable end of the hydraulic cylinder, start the hydraulic power unit to output power, the movable end pushes the press block, press the motor node into the mounting hole, and complete the press-fit of the motor node;

[0019] S500, unload the motor node, press the ferrule against the side of the motor node, and after centering, connect the pressure block to the movable end of the hydraulic cylinder 42, start the hydraulic power unit to output power, and push the motor node from the mounting hole into the sliding channel to complete the unloading of the motor node.

[0020] S600, the pressing frame mechanism is separated from the node mounting base. The movable end is retracted by the hydraulic power unit to separate the sleeve from the node mounting base. The pressing frame mechanism is then moved to separate from the node mounting base, completing the operation.

[0021] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0022] 1. This invention provides a motor node retraction and pressing system for electric vehicles, comprising a motor fixing platform, a floating box, a linkage mechanism, a pressing frame mechanism, and a hydraulic power unit. The motor fixing platform is located at the bottom of the motor and is used to horizontally support and limit the motor. The floating box is located on one side of the motor fixing platform and includes a floating support shaft that can be vertically raised and lowered. The linkage mechanism is located at the top of the support shaft. The pressing frame mechanism is fixed to the movable end of the linkage mechanism. The vertical height and horizontal position of the pressing frame mechanism can be adjusted respectively through the floating box and the linkage mechanism. The pressing frame mechanism is provided with a guide fixture to clamp the pressing frame mechanism onto the node mounting seat on the side of the motor. The mounting hole of the node mounting seat is used to accommodate and fix the motor node. The hydraulic power unit is activated to drive the pressing frame mechanism to push the guide fixture, thereby realizing the pressing or retraction of the motor node, solving the problem of not being able to quickly position the motor node.

[0023] 2. This invention provides a motor node unloading and pressing system for high-speed trains. It employs a motor fixing platform to quickly limit the position of the hoisted motor, and a floating box and linkage mechanism to quickly position the pressing frame mechanism at the motor node mounting hole. Then, the pressing or unloading is completed through the guide fixtures and pressure-bearing frame in the pressing frame mechanism. This system integrates the positioning, pressing, and unloading processes of motor node pressing and unloading into a single set of equipment. It can also be equipped with two sets of floating boxes, linkage mechanisms, and pressing frames, allowing for dual-station operation on multiple motor nodes on a single motor, reducing the equipment's footprint and significantly improving operational efficiency.

[0024] 3. This invention provides a system for unloading and pressing a motor node in a high-speed train. The guiding fixture includes a guide block and a pressure block. The guide block is slidably connected to the mounting hole and the sliding channel. Before starting the hydraulic cylinder, the clamping sleeve is pressed against the node mounting seat, the mounting hole and the sliding channel are aligned, and the guide block is placed into the mounting hole. The guide block has a slot on the side facing the motor node. The motor node is inserted into the slot for fixation, aligning the motor node with the mounting hole for quick positioning. A pressure block is provided between the motor node and the movable end of the hydraulic cylinder. The pressure block pushes the motor node towards the mounting hole under the push of the movable end. During the pushing process, the clamping sleeve slides along the sliding channel to provide guidance until the guide block is completely disengaged from the mounting hole and enters the sliding channel, completing the pressing. Conversely, by removing the pressure block, the guide block is placed between the motor node and the movable end of the hydraulic cylinder, and the guide block is pushed into the mounting hole to allow the motor node to slide out and complete the unloading. The pressing frame mechanism used in this system makes the pressure of the hydraulic cylinder on the motor node resisted by the strength of the bearing frame itself, avoiding stress on the motor body and preventing deformation or damage to the motor node mounting seat. Attached Figure Description

[0025] Figure 1 This is a front view of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0026] Figure 2 This is a rear view of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0027] Figure 3 These are front and top views of a motor platform in a high-speed train motor node unloading and pressing system according to an embodiment of the present invention;

[0028] Figure 4 These are side and rear views of a floating box in a high-speed train motor node unloading and pressing system according to an embodiment of the present invention;

[0029] Figure 5 This is a right view of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0030] Figure 6 AA is a cross-sectional view of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0031] Figure 7 This is a partial enlarged view (B) of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0033] Figure 9 This is a partial enlarged view (C) of a train motor node unloading and pressing system according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic flowchart of a method for unloading and pressing a motor node in a high-speed train according to an embodiment of the present invention.

[0035] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-motor fixing platform, 2-floating box, 3-linkage mechanism, 4-pressing frame mechanism, 5-hydraulic power unit, 6-motor, 11-motor support, 12-angle adaptive platform, 13-limiting device, 14-guide device, 21-box body, 22-floating support shaft, 23-counterweight, 24-transmission chain, 25-locking device, 26-foot switch, 31-high-strength connecting rod, 32-pressing frame fixing block, 41-pressure bearing frame, 42-hydraulic cylinder, 43-handrail, 44-pressing frame support spring, 45-pressing frame connecting block, 46-guide block, 47-pressing block, 48-clamping sleeve, 61-node mounting base, 62-motor node. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0037] like Figures 1-5 As shown, this invention provides a motor node retraction and pressing system for electric vehicles, including a motor fixing platform 1, a floating box 2, a linkage mechanism 3, a pressing frame mechanism 4, a hydraulic power unit 5, and a motor 6. The motor fixing platform 1 is located at the bottom of the motor 6 and is used to horizontally support and limit the motor 6. The floating box 2 is located on one side of the motor fixing platform 1 and includes a vertically movable floating support shaft 22. The linkage mechanism 3 is located at the top of the support shaft. The pressing frame mechanism 4 is rotatably connected to the linkage mechanism 3. The vertical height and horizontal position of the pressing frame mechanism 4 can be adjusted respectively through the floating box 2 and the linkage mechanism 3. The pressing frame mechanism 4 is equipped with a guide fixture, which engages the pressing frame mechanism 4 with a node mounting seat 61 on the side of the motor 6. The mounting hole of the node mounting seat 61 is used to accommodate and fix the motor node 62. The hydraulic power unit 5 is activated to drive the pressing frame mechanism 4, thereby pushing the guide fixture to press or retract the motor node 62, solving the problem of the inability to quickly position the motor node.

[0038] Furthermore, such as Figures 1-3As shown, the motor fixing platform 1 includes a motor support 11, an angle-adaptive platform 12, a limiting device 13, and a guide device 14. The motor support 11 is a frame-type support structure, and its bottom space can be used to install the hydraulic power unit 5. A limiting device 13 is fixedly installed on the top surface of the motor support 11, and the angle-adaptive platform 12 is installed on the limiting device 13. The limiting device 13 is used to lock and limit the angle-adaptive platform 12. Further, after the motor 6 is hoisted to the angle-adaptive platform 12, multiple guide devices 14 are fixed on the platform. Preferably, multiple sets of guide devices 14 are provided, and each set includes two aligned guide blocks to provide guidance and limiting functions when hoisting and placing the motor 6. The angle-adaptive platform 12 can be rotated and finely adjusted in the horizontal plane to facilitate the quick placement of the bottom of the motor 6 in the guide device 14 for limiting. After the motor 6 is completely fixed, the node mounting seat 61 on its side extends toward the floating box 2.

[0039] Furthermore, such as Figures 1-3 As shown, the floating box 2 includes a box body 21, a floating support shaft 22, a counterweight 23, a transmission chain 24, a locking device 25, and a foot switch 26. The transmission chain 24 is installed inside the box body 21 via a sprocket. Both ends of the transmission chain 24 are fixed to the counterweight 23 and the floating support shaft 22, respectively. The side of the floating support shaft 22 is slidably connected to a guide rail inside the box body 21 via a slider. The floating support shaft 22 passes through the top plate of the box body 21 and is slidably connected to the top plate. When the floating support shaft 22 slides up and down, the counterweight 23 is used to balance the weight carried by the floating support shaft 22. Preferably, the counterweight 23 can be increased or decreased in weight according to actual needs. Multiple floating support shafts 22 can be provided as needed. The locking device 25 is fixed to the housing 21. The friction block is driven by a cylinder to abut against the side of the floating support shaft 22 to lock the support shaft. The foot switch 26 is connected to the motor signal in the locking device 25. The floating support shaft 22 is locked by releasing the foot switch 26. The foot switch 26 can be fixed to the side of the floating housing 2 or directly fixed to the ground. Using the foot switch 26 to lock the movement of the floating support shaft 22 ensures the safety of manual operation. The floating housing 2 used in this system is used to support the vertical movement of the linkage mechanism 3 and the pressure frame mechanism 4 at its top. The height position of the pressure frame mechanism 4 can be adjusted conveniently and effortlessly to achieve the effect of matching the position of the node mounting seat 61.

[0040] Furthermore, such as Figures 1-9As shown, the linkage mechanism 3 includes a high-strength linkage 31 and a pressure frame fixing block 32. One end of the high-strength linkage 31 is rotatably connected to the top of the floating support shaft 22, and the other end is rotatably connected to the pressure frame fixing block 32. One or more rotating pairs are provided between the two ends of the high-strength linkage 31. The pressure frame fixing block 32 is used to fix and install the pressure frame mechanism 4. The pressure frame mechanism 4 can be quickly pushed to a position close to the node mounting seat 61 through the linkage mechanism 3. Preferably, the number of linkage mechanisms 3 matches the floating support shaft 22.

[0041] Furthermore, such as Figures 1-9 As shown, the frame pressing mechanism 4 includes a pressure-bearing frame 41, a hydraulic cylinder 42, a handrail 43, a frame pressing support spring 44, a frame pressing connecting block 45, a guide fixture, and a retaining sleeve 48. The pressure-bearing frame 41 is a frame-shaped structure. The bottom of the pressure-bearing frame 41 is fixedly equipped with the frame pressing support spring 44 and the frame pressing connecting block 45. The frame pressing frame 41 is mounted on the frame pressing fixing block 32 via the connecting block. The two ends of the frame pressing support spring 44 abut against the pressure-bearing frame 41 and the frame pressing fixing block 32, respectively, allowing for fine-tuning of the frame pressing mechanism 4 in the horizontal direction. The handrail 43 is fixed to the pressure-bearing frame 41, and multiple handrails can be provided. By holding the handrail 43, the pressure-bearing frame 41 can be brought close to the motor node mounting seat 61. Furthermore, within the frame formed by the pressure-bearing frame 41, a horizontally fixed... A hydraulic cylinder 42 is provided, with one end fixed to the pressure-bearing frame 41 and the other end being a movable end used to provide thrust for pressing the motor node 62. A retaining sleeve 48 is also provided on the pressure-bearing frame 41 to which the movable end points. The retaining sleeve 48 faces the movable end of the hydraulic cylinder 42 and abuts against the node mounting seat 61. When the hydraulic cylinder 42 pushes the motor node 62, the pressure-bearing frame 41 is subjected to a reaction force. At this time, the retaining sleeve 48 abuts against the node mounting seat 61 to keep the unloading or pressing process stable. A sliding channel is provided in the center of the retaining sleeve 48 for the guide tool to pass through. Furthermore, one end of the guide tool passes through the mounting hole of the node mounting seat 61, and the other end contacts the movable end of the hydraulic cylinder 42 to transmit thrust. The hydraulic cylinder 42 is connected to the hydraulic power unit 5, which provides the power source for the hydraulic cylinder 42.

[0042] Furthermore, such as Figure 7As shown, the guide fixture includes a guide block 46 and a pressure block 47. The guide block 46 is slidably connected to the mounting hole and the sliding channel. Before starting the hydraulic cylinder 42, the sleeve 48 is pressed against the node mounting seat 61, the mounting hole and the sliding channel are aligned, and the guide block 46 is placed into the mounting hole. The guide block 46 has a slot on the side facing the motor node 62. The motor node 62 is inserted into the slot for fixation, so that the motor node 62 is aligned with the mounting hole, achieving quick positioning. Furthermore, the outer edge of the motor node 62 is interference-fitted with the mounting hole. A pressure block 47 is provided between the motor node 62 and the movable end of the hydraulic cylinder 42. The pressure block 47 is detachably connected to the movable end. Under the push of the movable end, the pressure block 47 pushes the motor node 62 towards... The mounting hole is pressed in, and during the pressing process, the ferrule slides along the sliding channel to provide guidance until the pressure block 47 abuts against the side of the node mounting base 61. At this time, the motor node 62 is pressed into the designated position, and the guide block 46 completely disengages from the mounting hole and enters the sliding channel, completing the pressing of the motor node 62. Conversely, by removing the pressure block 47, the guide block 46 is placed between the motor node 72 and the movable end of the hydraulic cylinder 42, and the guide block 46 is pushed into the mounting hole, causing the motor node 72 to slide out, completing the unloading operation. The frame pressing mechanism 4 used in this system makes the pressure of the hydraulic cylinder 42 on the motor node resisted by the strength of the bearing frame 41 itself, avoiding stress on the main body of the motor 6 and preventing the motor node mounting base 71 from being deformed or crushed.

[0043] Furthermore, such as Figures 1-8 As shown, the motor fixing platform 1 provided by this system can quickly limit the position of the hoisted motor 6. The floating box 2 and the linkage mechanism 3 can quickly position the pressure frame mechanism 4 to the motor node 62. Then, the pressure installation or unloading is completed through the guide tooling and pressure frame 41 in the pressure frame mechanism 4. This system integrates the positioning, pressure installation and unloading processes of the motor node pressure installation and unloading into one set of equipment. At the same time, two sets of floating boxes 2, linkage mechanisms 3 and pressure frame mechanisms 4 can be set up to perform dual-station operations on multiple motor nodes 62 on one motor 6, which reduces the footprint of the equipment and greatly improves the work efficiency.

[0044] Furthermore, such as Figures 1-10 As shown, the method for unloading and pressing a high-speed train motor node includes the following steps:

[0045] S100, 6-position motor;

[0046] Before removing or pressing the motor node 62, the motor 6 is hoisted onto the angle adaptive platform 12 and the motor 6 is limited by the limiting device 13 and the guiding device 14. At this time, the motor node 62 faces the side of the floating box 2.

[0047] S200, Adjust the height of the frame pressing mechanism 4;

[0048] Step on the foot switch 26. At this time, the locking device 25 retracts and opens, releasing the restriction on the floating support shaft 22. Grab the handrail 43 and move the pressure frame mechanism 4 to the horizontal height of the node mounting seat 61.

[0049] S301, use guide fixtures to center and lock the height of the frame pressing mechanism 4;

[0050] After grasping the handrail 43 and operating the frame pressing mechanism 4 to align the height position of the motor node 62, place the guide block 46 into the mounting hole of the motor node 62. Part of the guide block 46 protrudes out from the mounting hole to one side. Then, holding the handrail 43, move the pressure frame 41 close to the node mounting seat 61 through the linkage mechanism 3. Bring the sleeve 48 on the pressure frame 41 close to the guide block 46 until the sliding channel in the sleeve 48 is fitted outside the guide block 46 and the sleeve 48 abuts against the side of the motor node 62. At this time, the alignment of the frame pressing mechanism 4 and the motor node 62 is completed. Then, release the foot switch 26 and the locking device 25 locks the height of the frame pressing mechanism 4.

[0051] S400, press-fit motor node 62;

[0052] Place the motor node 62 into the slot of the guide block 46, then connect the pressure block 47 to the movable end of the hydraulic cylinder 42, start the hydraulic power unit 5 to output power, and the movable end of the hydraulic cylinder 42 pushes the pressure block 47 to press the motor node 62 into the mounting hole, thus completing the pressing of the motor node 62. During the pressing process, the guide block 46 provides a guiding function.

[0053] S500, motor unloading node 62;

[0054] After aligning the sleeve 48 against the side of the motor node 62, connect the pressure block 47 to the movable end of the hydraulic cylinder 42, start the hydraulic power unit 5 to output power, and push the motor node 62 from the mounting hole into the sliding channel to complete the unloading of the motor node 62. The guide block 46 is not required during this process.

[0055] S600, the pressing mechanism 4 is separated from the node mounting base 61 to complete the operation;

[0056] By operating the hydraulic power unit 5, the movable end of the hydraulic cylinder 42 is retracted, and the hand handle 43 is used to separate the sleeve 48 on the pressure frame 41 from the node mounting seat 61. Then, the pressure frame mechanism 4 is moved away from the node mounting seat 61 by the linkage mechanism 3 to complete the operation.

[0057] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A motor car motor node de-pressurization and disassembly system, characterized by, The system includes a motor mounting platform (1), a floating box (2), a linkage mechanism (3), a pressure frame mechanism (4), and a hydraulic power unit (5). The motor mounting platform (1) horizontally supports the motor (6). The floating box (2) is located on one side of the motor mounting platform (1). The floating box (2) includes a vertically lifting floating support shaft (22). The linkage mechanism (3) is located on top of the floating support shaft (22). The pressure frame mechanism (4) and the linkage mechanism (3) are rotatably connected. The pressure frame mechanism (4) includes a pressure-bearing frame (41), a hydraulic cylinder (42), a guide fixture, and a clamp. The sleeve (48) is fixed on the pressure frame (41), and the sleeve (48) abuts against the node mounting seat (61). The mounting hole of the node mounting seat (61) is used to accommodate and fix the motor node (62). One end of the hydraulic cylinder (42) is horizontally fixed on the pressure frame (41), and the other end is a movable end. The movable end abuts against the guide fixture. The guide fixture is in contact with the motor node (62). The hydraulic cylinder (42) is connected to the hydraulic power unit (5). The hydraulic power unit (5) provides power to the hydraulic cylinder (42). The sleeve (48) has a sliding channel in the center for the guide fixture to pass through. The guide fixture includes a guide block (46) and a pressure block (47). The guide block (46) is slidably connected to the mounting hole and the sliding channel. The guide block (46) has a slot on the side facing the motor node (62). The slot limits the motor node (62). The outer edge of the motor node (62) is interference-fitted with the mounting hole. The pressure block (47) is provided between the motor node (62) and the movable end of the hydraulic cylinder (42). The pressure block (47) is detachably connected to the movable end.

2. The motor node dismounting and pressing system of a motor train unit according to claim 1, characterized in that, The linkage mechanism (3) includes a high-strength connecting rod (31) and a pressure frame fixing block (32). One end of the high-strength connecting rod (31) is rotatably connected to the floating support shaft (22), and the other end is rotatably connected to the pressure frame fixing block (32). There is one or more rotating pairs between the two ends of the high-strength connecting rod (31).

3. The motor node deinstallation and press-fit system of claim 2, wherein, The frame pressing mechanism (4) includes a frame pressing support spring (44) and a frame pressing connecting block (45). The two ends of the frame pressing support spring (44) abut against the pressure-bearing frame (41) and the frame pressing fixing block (32) respectively. The frame pressing connecting block (45) is fixed to the bottom of the frame pressing frame (41) and is fixedly connected to the frame pressing fixing block (32).

4. The motor node deinstallation and press-fit system of claim 2, wherein, The pressure frame mechanism (4) includes a handrail (43), which is fixed to the pressure-bearing frame (41).

5. The motor node deinstallation and press-fit system of claim 1, wherein, The floating box (2) includes a box body (21), a counterweight (23), a transmission chain (24), and a sprocket. The sprocket is located inside the box body (21). The transmission chain (24) and the sprocket are connected in a transmission connection. The two ends of the transmission chain (24) are respectively fixed to the counterweight (23) and the floating support shaft (22). The side of the floating support shaft (22) is slidably connected to the box body (21) through a slider.

6. The motor node deinstallation and press-fit system of claim 5, wherein, The floating box (2) includes a locking device (25) and a foot switch (26). The locking device (25) is fixed on the box body (21) and abuts against the floating support shaft (22). The foot switch (26) is connected to the locking device (25) via signal communication.

7. The motor node deinstallation and press-fit system of claim 1, wherein, The motor fixing platform (1) includes a motor support (11), an angle adaptive platform (12), a limiting device (13), and a guiding device (14). The hydraulic power unit (5) is installed at the bottom of the motor support (11). The limiting device (13) is fixedly installed on the top surface of the motor support (11). The angle adaptive platform (12) is installed on the limiting device (13). The limiting device (13) locks the angle adaptive platform (12). The guiding device (14) is fixedly installed on the angle adaptive platform (12). The guiding device (14) positions the motor (6).

8. A method for dismounting and press-fitting a motor node of a train, characterized in that, The system and method for unloading and pressing a train motor node as described in any one of claims 1-7 are implemented by including the following steps: S100, Motor (6) positioning: Before the motor node (62) is removed or pressed, the motor (6) is hoisted onto the angle adaptive platform (12), and the motor (6) is limited by the limiting device (13) and the guiding device (14), with the motor node (62) facing the side of the floating box (2). S200, adjust the height of the pressing frame mechanism (4), step on the foot switch (26), release the locking device (25) from the restriction on the floating support shaft (22), grab the handrail (43) and move the pressing frame mechanism (4) to the horizontal height of the node mounting seat (61); S301, using the guide fixture for centering, lock the height of the pressing frame mechanism (4), align the pressing frame mechanism (4) with the height position of the motor node (62), and place the guide block (46) into the mounting hole of the motor node (62). Part of the guide block (46) protrudes from the mounting hole to one side. Hold the handle (43) and move the supporting frame (41) close to the node mounting seat (61) through the linkage mechanism 3 until the sliding channel in the sleeve (48) is sleeved outside the guide block (46). The sleeve (48) abuts against the side of the motor node (62), completing the centering of the pressing frame mechanism (4) and the motor node (62). Release the foot switch (26), and the locking device (25) locks the pressing frame mechanism (4). S400, press the motor node (62), place the motor node (62) into the slot of the guide block (46), connect the pressing block (4) to the movable end of the hydraulic cylinder (42), start the hydraulic power unit (5) to output power, the movable end pushes the pressing block (47) to press the motor node (62) into the mounting hole, and complete the press installation of the motor node (62); S500, remove the motor node (62), place the sleeve (48) against the side of the motor node (62), and after centering, connect the pressure block (47) to the movable end of the hydraulic cylinder (42), start the hydraulic power unit (5) to output power, and push the motor node (62) from the mounting hole into the sliding channel to complete the removal of the motor node (62); S600, the pressing frame mechanism (4) is separated from the node mounting seat (61), and the movable end is retracted by the hydraulic power unit (5) to separate the sleeve (48) from the node mounting seat (61), and the pressing frame mechanism (4) is moved to separate from the node mounting seat (61) to complete the operation.

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