CN219684519U - Motor car motor node pressure relief loading system - Google Patents

Abstract

The utility model discloses a motor car motor node withdrawal pressure relief system which comprises a motor, a motor fixing platform, a floating box, a connecting rod mechanism and a frame pressing mechanism, wherein a node mounting seat is arranged on the side face of the motor, the motor node is in interference fit with a mounting hole, the motor fixing platform horizontally supports the motor, the floating box comprises a floating support shaft which is vertically lifted, the connecting rod mechanism is arranged at the top of the floating support shaft, the frame pressing mechanism is rotationally connected with the connecting rod mechanism, the frame pressing mechanism comprises a pressure-bearing frame, a hydraulic cylinder, a guide tool and a clamping sleeve, the clamping sleeve is fixed on the pressure-bearing frame, the clamping sleeve is abutted to the node mounting seat, one end of the hydraulic cylinder is horizontally fixed on the pressure-bearing frame, the other end of the hydraulic cylinder is a movable end of the hydraulic cylinder, the movable end of the hydraulic cylinder is abutted to the guide tool, the guide tool is in contact connection with a motor node, the hydraulic cylinder is communicated with a hydraulic power unit, and the hydraulic power unit provides power for the hydraulic cylinder, so that the problems that quick positioning of the motor node and deformation of the motor node mounting seat are easy to occur are solved.

Description

Motor car motor node pressure relief loading system

Technical Field

The utility model relates to the technical field of rail transit vehicle overhaul, in particular to a motor car motor node withdrawal pressure relief system.

Background

The motor fixing node of the rail transit vehicle has the conditions of vibration, shaking and the like in the running process, the inside of the rail transit vehicle can generate the defects of fatigue deformation, looseness and the like, and if the motor fixing node is loosened and separated in the running process, the rail transit vehicle can cause a great safety accident. Therefore, the motor nodes need to be disassembled and overhauled and re-pressed at regular intervals. In recent years, a manual positioning mode of a hydraulic cylinder is adopted for press mounting, dismounting and loading of motor nodes at home and abroad, a motor is usually required to be placed on a fixed base, and an operator pushes out or presses in the motor nodes through the manual positioning mode by using the hydraulic cylinder.

The prior art has several disadvantages: (1) The overhaul fixture is unbalanced in stress structure, and when the hydraulic cylinder is operated to press, assemble and disassemble, uneven stress of the node mounting seat of the motor can be caused, motor deflection occurs, and even stress deformation of the node mounting seat occurs; (2) Meanwhile, the tool is loose in structure, large in personnel operation difficulty, inflexible to use and large in operation difficulty, can only operate in a single working position each time, is low in operation efficiency, and is low in input and output of equipment.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the utility model provides a motor car motor node withdrawal pressure-relief loading system, which adopts a motor fixing platform, a floating box, a connecting rod mechanism, a frame pressing mechanism and a hydraulic power unit, wherein the motor fixing platform is positioned at the bottom of a motor and is used for horizontally supporting and limiting the motor, the floating box is arranged at one side of the motor fixing platform, the floating box comprises a floating supporting shaft which can vertically lift, the connecting rod mechanism is arranged at the top of the supporting shaft, the frame pressing mechanism is fixed at the movable end of the connecting rod mechanism, the vertical height and the horizontal position of the frame pressing mechanism can be respectively adjusted through the floating box and the connecting rod mechanism, a guide tool is arranged on the frame pressing mechanism, the frame pressing mechanism is clamped on a node mounting seat at the side surface of the motor, and a node mounting seat mounting hole is used for accommodating and fixing a motor node, and the hydraulic power unit is started to drive the frame pressing mechanism so as to push the guide tool, thereby realizing the press loading or withdrawal of the motor node, and solving the problems that the rapid positioning of the motor node and the easy deformation of the motor node mounting seat can not be realized.

In order to achieve the above object, a motor car motor node pressure relief loading system is provided, including:

the hydraulic power unit comprises a motor fixing platform, a floating box, a connecting rod mechanism, a frame pressing mechanism and a hydraulic power unit, wherein the motor fixing platform horizontally supports the motor, the floating box is arranged on one side of the motor fixing platform and comprises a floating supporting shaft which is vertically lifted, the connecting rod mechanism is arranged on the top of the floating supporting shaft, the frame pressing mechanism is rotationally connected with the connecting rod mechanism, the frame pressing mechanism comprises a pressure-bearing frame, a hydraulic cylinder, a guiding tool and a clamping sleeve, the clamping sleeve is fixed on the pressure-bearing frame, the clamping sleeve is abutted to a node mounting seat, one end of the hydraulic cylinder is horizontally fixed on the pressure-bearing frame, the other end of the hydraulic cylinder is a movable end of the hydraulic cylinder, the movable end of the hydraulic cylinder is abutted to the guiding tool, the guiding tool is in contact connection with a motor node, the hydraulic cylinder is communicated with the hydraulic power unit, and the hydraulic power unit provides power for the hydraulic cylinder.

Further, the link mechanism comprises a high-strength link and a pressing frame fixing block, one end of the high-strength link is rotationally connected to the floating support shaft, the other end of the high-strength link is rotationally connected with the pressing frame fixing block, and more than one revolute pair is arranged between two end parts of the high-strength link.

Further, the frame pressing mechanism comprises a frame pressing supporting spring and a frame pressing connecting block, two ends of the frame pressing supporting spring are respectively abutted to the pressure-bearing frame and the frame pressing fixing block, the frame pressing connecting block is fixed to the bottom of the frame pressing frame, and the frame pressing connecting block is fixedly connected with the frame pressing fixing block.

Further, the cutting ferrule center sets up the sliding channel and supplies the direction frock passes through, the direction frock includes guide block and briquetting, the guide block with the mounting hole sliding connection of sliding channel, the guide block towards one side of motor node is equipped with the draw-in groove, the draw-in groove is spacing motor node, the briquetting with the removable connection of expansion end.

Further, the frame pressing mechanism comprises an armrest, and the armrest is fixed on the pressure-bearing frame.

Further, the floating box comprises a box body, a counterweight, a transmission chain and a sprocket, wherein the sprocket is arranged in the box body, the transmission chain is in transmission connection with the sprocket, two ends of the transmission chain are respectively fixed on the counterweight and the floating support shaft, and the side face of the floating support shaft is in sliding connection with the box body through a sliding block.

Further, the floating box comprises a locking device and a foot switch, the locking device is fixed on the box body, the locking device is abutted to the floating support shaft, and the foot switch is in signal communication with the locking device.

Further, the motor fixing platform comprises a motor saddle, an angle self-adaptive table top, a limiting device and a guiding device, wherein the hydraulic power unit is installed at the bottom of the motor saddle, the limiting device is fixedly arranged on the top surface of the motor saddle, the angle self-adaptive table top is installed on the limiting device, the angle self-adaptive table top is locked by the limiting device, the guiding device is fixedly arranged on the angle self-adaptive table top, and the guiding device is used for positioning the motor.

In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:

1. the utility model provides a motor car motor node withdrawal pressure-relief loading system which comprises a motor fixing platform, a floating box, a connecting rod mechanism, a frame pressing mechanism and a hydraulic power unit, wherein the motor fixing platform is positioned at the bottom of a motor and is used for horizontally supporting and limiting the motor, the floating box is arranged at one side of the motor fixing platform and comprises a floating supporting shaft capable of vertically lifting, the connecting rod mechanism is arranged at the top of the supporting shaft, the frame pressing mechanism is fixed at the movable end of the connecting rod mechanism, the vertical height and the horizontal position of the frame pressing mechanism can be respectively adjusted through the floating box and the connecting rod mechanism, a guide tool is arranged on the frame pressing mechanism, the frame pressing mechanism is clamped on a node mounting seat at the side surface of the motor, a node mounting seat mounting hole is used for accommodating and fixing a motor node, and the hydraulic power unit is started to drive the frame pressing mechanism so that the guide tool is pushed, and the problem that the motor node can not be rapidly positioned is solved.

2. The utility model provides a motor node pressure relief loading system of a motor car, which adopts a motor fixing platform to rapidly limit a hoisted motor, a floating box and a connecting rod mechanism to rapidly position a frame pressing mechanism to a motor node mounting hole, and then press loading or unloading is completed through a guide tool and a pressure-bearing frame in the frame pressing mechanism.

3. The utility model provides a motor car motor node withdrawal pressure loading system, which comprises a guide block and a pressing block, wherein the guide block is in sliding connection with a mounting hole and a sliding channel, before a hydraulic cylinder is started, a clamping sleeve is abutted against a node mounting seat, the mounting hole and the sliding channel are centered, the guide block is placed in the mounting hole, a clamping groove is formed in one side of the guide block facing to the motor node, the motor node is inserted into the clamping groove to be fixed, so that the motor node is centered with the mounting hole, a pressing block is arranged between the motor node and a movable end of the hydraulic cylinder, the motor node is pushed to the mounting hole by the pressing block under the pushing of the movable end, the clamping sleeve slides along the sliding channel in the pushing process, guiding is provided until the guide block is completely separated from the mounting hole into the sliding channel, and press loading is completed, otherwise, the pressing block is abutted between the motor node and the movable end of the hydraulic cylinder by the pressing block is pushed into the mounting hole, so that the motor node slides out to complete withdrawal, the pressure of the motor node and the strength of a pressure-bearing frame are resisted by the hydraulic cylinder, and the motor main body is prevented from deforming or being crushed.

Drawings

FIG. 1 is a front view of a motor car motor node withdrawal pressure relief system according to an embodiment of the present utility model;

FIG. 2 is a rear view of a motor car motor node retract relief system according to an embodiment of the present utility model;

FIG. 3 is a front view and a top view of a motor platform in a motor car motor node withdrawal and pressure relief system according to an embodiment of the present utility model;

FIG. 4 is a side view and a rear view of a floating box in a motor car motor node back pressure relief loading system according to an embodiment of the present utility model;

FIG. 5 is a right side view of a motor car motor node retract pressure relief system according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view A-A of a motor car motor node pressure relief system according to an embodiment of the present utility model;

FIG. 7 is a partial enlarged view B of a motor car motor node pressure relief loading system according to an embodiment of the present utility model;

FIG. 8 is a schematic structural diagram of a motor car motor node pressure relief system according to an embodiment of the present utility model;

fig. 9 is a partial enlarged view C of a motor car motor node withdrawal and pressure relief system according to an embodiment of the present utility model;

fig. 10 is a schematic flow chart of a method for disassembling and assembling a motor node of a motor car according to an embodiment of the utility model.

Like reference numerals denote like technical features throughout the drawings, in particular: the device comprises a 1-motor fixing platform, a 2-floating box, a 3-connecting rod mechanism, a 4-frame pressing mechanism, a 5-hydraulic power unit, a 6-motor, a 11-motor supporting platform, a 12-angle self-adaptive table board, a 13-limiting device, a 14-guiding device, a 21-box body, a 22-floating supporting shaft, a 23-counterweight, a 24-transmission chain, a 25-locking device, a 26-foot switch, a 31-high-strength connecting rod, a 32-frame pressing fixing block, a 41-pressure-bearing frame, a 42-hydraulic cylinder, a 43-handrail, a 44-frame pressing supporting spring, a 45-frame pressing connecting block, a 46-guiding block, a 47-pressing block, a 48-clamping sleeve, a 61-node mounting seat and a 62-motor node.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1-5, the utility model provides a motor car motor node withdrawal pressure loading system, which comprises a motor fixing platform 1, a floating box 2, a connecting rod mechanism 3, a frame pressing mechanism 4, a hydraulic power unit 5 and a motor 6, wherein the motor fixing platform 1 is positioned at the bottom of the motor 6 and is used for horizontally supporting and limiting the motor 6, the floating box 2 is arranged on one side of the motor fixing platform 1, the floating box 2 comprises a floating support shaft 22 capable of vertically lifting, the connecting rod mechanism 3 is arranged at the top of the support shaft, the frame pressing mechanism 4 is rotationally connected with the connecting rod mechanism 3, the vertical height and the horizontal position of the frame pressing mechanism 4 can be respectively adjusted through the floating box 2 and the connecting rod mechanism 3, a guide tool is arranged on the frame pressing mechanism 4, the frame pressing mechanism 4 is clamped on a node mounting seat 61 on the side surface of the motor 6, a node mounting seat 61 mounting hole is used for accommodating and fixing a motor node 62, and the hydraulic power unit 5 is started to drive the frame pressing mechanism 4 so as to push the guide tool, and the problem that the motor node 62 cannot be rapidly positioned is solved.

Further, as shown in fig. 1-3, the motor fixing platform 1 comprises a motor supporting platform 11, an angle self-adapting table top 12, a limiting device 13 and a guiding device 14, wherein the motor supporting platform 11 is of a frame type supporting structure, the bottom space of the motor supporting platform can be used for installing a hydraulic power unit 5, the limiting device 13 is fixedly arranged on the top surface of the motor supporting platform 11, the limiting device 13 is used for locking and limiting the angle self-adapting table top 12, further, after the motor 6 is lifted to the angle self-adapting table top 12, a plurality of guiding devices 14 are fixed on the table top, preferably, a plurality of groups of guiding devices 14 are arranged, each group comprises two guiding blocks which are arranged in an alignment mode, guiding and limiting effects are provided when the motor 6 is lifted and placed, the angle self-adapting table top 12 can adjust the motor 6 to be placed horizontally, so that the motor 6 can be positioned and placed quickly, and after the motor 6 is completely fixed, a node mounting seat 61 on the side face of the motor 6 extends towards the side of the floating box 2.

Further, as shown in fig. 1-3, the floating box 2 includes a box 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 disposed in the box 21 through a sprocket, two ends of the transmission chain 24 are respectively fixed on the counterweight 23 and the floating support shaft 22, the side surface of the floating support shaft 22 is slidably connected with a guide rail in the box 21 through a sliding block, the floating support shaft 22 passes through a top plate of the box 21 and is slidably connected with the top plate, when the floating support shaft 22 slides up and down, the counterweight 23 is used for balancing the gravity borne by the floating support shaft 22, preferably, the counterweight 23 can increase or decrease the weight according to actual needs, the floating support shaft 22 can be provided with a plurality of pieces according to needs, further, the locking device 25 is fixed on the box 21, the side surface of the floating support shaft 22 is abutted to the floating support shaft 22 through a cylinder driving friction block, the foot switch 26 is in signal communication with a motor in the locking device 25, the locking of the floating support shaft 22 is realized through loosening the foot switch 26, the side surface of the floating support shaft 26 can be fixed on the box 2 or the foot switch 26 is fixed on the side surface of the floating support shaft 2, the position can be directly pressed down by the manual frame, the manual frame is matched with the position of the floating support mechanism is mounted on the top of the box 2, the manual frame is convenient to install the manual frame, and the manual frame is convenient to install, and the position of the manual frame is easy to press the frame is easy to install, and the manual frame is easy to be easy to install, and has high safety, and has high safety and has safety and safety.

Further, as shown in fig. 1-9, the link mechanism 3 includes a high-strength link 31 and a pressing frame fixing block 32, one end of the high-strength link 31 is rotatably connected to the top of the floating support shaft 22, the other end is rotatably connected to the pressing frame fixing block 32, more than one revolute pair is disposed between two ends of the high-strength link 31, the pressing frame fixing block 32 is used for fixedly mounting the pressing frame mechanism 4, the pressing frame mechanism 4 can be quickly pushed to a position close to the node mounting seat 61 through the link mechanism 3, and preferably, the number of the link mechanism 3 is matched with that of the floating support shaft 22.

Further, as shown in fig. 1-9, the pressing frame mechanism 4 includes a pressing frame 41, a hydraulic cylinder 42, an armrest 43, a pressing frame supporting spring 44, a pressing frame connecting block 45, a guiding tool and a clamping sleeve 48, wherein the pressing frame 41 is in a frame structure, the pressing frame supporting spring 44 and the pressing frame connecting block 45 are fixedly arranged at the bottom of the pressing frame 41, the pressing frame 41 is mounted on the pressing frame fixing block 32 through the connecting block, two ends of the pressing frame supporting spring 44 are respectively abutted to the pressing frame 41 and the pressing frame fixing block 32, the pressing frame mechanism 4 can be finely adjusted in the horizontal direction, the armrest 43 is fixed on the pressing frame 41, a plurality of armrests 43 can be arranged, the pressing frame 41 can be abutted to a motor joint mounting seat 61 by holding the armrest 43, further, one end of the hydraulic cylinder 42 is fixed on the pressing frame 41, the other end of the hydraulic cylinder 42 is a pushing end for providing pushing force for the pressing motor joint 62, the pressing frame 41 is further arranged on the pressing frame 41, the clamping sleeve 48 faces the movable end of the hydraulic frame 42, the pressing frame is abutted to the motor joint 62 is abutted to the hydraulic cylinder 42, the other end is abutted to the hydraulic tool is mounted on the hydraulic tool and the other end is abutted to the hydraulic tool, the hydraulic tool is further mounted on the other end of the hydraulic tool is abutted to the hydraulic tool, and the hydraulic tool is mounted on the other end is abutted to the hydraulic tool joint mounting seat, and the hydraulic tool is mounted on the other end is the hydraulic joint mounting seat by the hydraulic tool, and the hydraulic tool is mounted on the hydraulic joint is the hydraulic joint mounting seat by the hydraulic joint is mounted on the hydraulic joint, and the hydraulic tool is the hydraulic joint is mounted on the hydraulic joint is the hydraulic joint.

Further, as shown in fig. 7, the guiding tool comprises a guiding block 46 and a pressing block 47, wherein the guiding block 46 is in sliding connection with the mounting hole and the sliding channel, before the hydraulic cylinder 42 is started, the clamping sleeve 48 is abutted against the node mounting seat 61, the mounting hole and the sliding channel are centered, the guiding block 46 is placed in the mounting hole, a clamping groove is arranged on one side of the guiding block 46 facing the motor node 62, the motor node 62 is inserted into the clamping groove to be fixed, the motor node 62 is centered with the mounting hole, quick positioning is realized, further, the outer edge of the motor node 62 is in interference fit with the mounting hole, the pressing block 47 is arranged between the motor node 62 and the movable end of the hydraulic cylinder 42, the pressing block 47 is detachably connected with the movable end, the pressing block 47 presses the motor node 62 into the mounting hole under the pushing of the movable end, the cutting ferrule slides along the sliding channel in the process of impressing, provide the direction, until briquetting 47 butt node mount pad 61 side, the motor node 62 impresss appointed position this moment, guide block 46 is deviate from completely from the mounting hole, get into in the sliding channel, accomplish the pressure equipment to motor node 62, otherwise, through taking off briquetting 47, butt guide block 46 between motor node 72 and pneumatic cylinder 42 expansion end, promote the guide block 46 and get into the mounting hole, make motor node 72 roll-off, accomplish the withdrawal operation, the pressure of pneumatic cylinder 42 to motor node and pressure frame 41 self intensity form resistance, avoid motor 6 main part atress, avoid motor node mount pad 71 to take place to warp or be crushed.

Further, as shown in fig. 1-8, the motor fixing platform 1 provided by the system can rapidly limit the hoisted motor 6, the floating box 2 and the connecting rod mechanism 3 can rapidly position the frame pressing mechanism 4 to the motor node 62, then press mounting or dismounting is completed through the guide tool and the pressure-bearing frame 41 in the frame pressing mechanism 4, the system integrates three procedures of positioning, press mounting and dismounting in the process of press mounting and dismounting operation of the motor node into one set of equipment, two sets of floating boxes 2, the connecting rod mechanism 3 and the frame pressing mechanism 4 can be arranged at the same time, double-station operation is performed on a plurality of motor nodes 62 on one motor 6, the occupied area of the equipment is reduced, and the operation efficiency is greatly improved.

Further, as shown in fig. 1 to 10, the method for removing the pressure relief system from the motor vehicle motor node includes the following steps:

s100, positioning a motor 6;

before the motor node 62 is disassembled or pressed, the motor 6 is lifted to the angle self-adaptive table top 12, the motor 6 is limited by the limiting device 13 and the guiding device 14, and the motor node 62 faces one side of the floating box 2;

s200, adjusting the height of the frame pressing mechanism 4;

when the foot switch 26 is stepped on, the locking device 25 is retracted and opened, the limitation on the floating support shaft 22 is released, and the handrail 43 is grasped to move the frame pressing mechanism 4 to the horizontal height of the node mounting seat 61;

s301, centering by using a guide tool, and locking the height of the frame pressing mechanism 4;

after the handrail 43 is grasped to operate the frame pressing mechanism 4 to the height position of the positive motor node 62, a guide block 46 is placed in a mounting hole of the motor node 62, part of the guide block 46 is exposed to one side from the mounting hole, then the handrail 43 is held by a hand, the pressure-bearing frame 41 is moved to be close to the node mounting seat 61 through the connecting rod mechanism 3, a clamping sleeve 48 on the pressure-bearing frame 41 is close to the guide block 46 until a sliding channel in the clamping sleeve 48 is sleeved outside the guide block 46, the clamping sleeve 48 is abutted against the side surface of the motor node 62, at the moment, the centering of the frame pressing mechanism 4 and the motor node 62 is completed, then the foot switch 26 is released, and the locking device 25 locks the height of the frame pressing mechanism 4;

s400, pressing the motor node 62;

placing the motor node 62 into a clamping groove of the guide block 46, connecting the pressing block 47 to the movable end of the hydraulic cylinder 42, starting the hydraulic power unit 5 to output power, pushing the pressing block 47 by the movable end of the hydraulic cylinder 42, pressing the motor node 62 into the mounting hole, and finishing the press mounting of the motor node 62, wherein the guide block 46 provides a guide function in the press mounting process;

s500, disassembling the motor node 62;

after centering, the clamping sleeve 48 is abutted against the side surface of the motor node 62, the pressing block 47 is connected to the movable end of the hydraulic cylinder 42, the hydraulic power unit 5 is started to output power, the motor node 62 is pushed into the sliding channel from the mounting hole, and the dismounting of the motor node 62 is completed, and the guide block 46 is not needed in the process;

s600, separating the frame pressing mechanism 4 from the node mounting seat 61 to finish the operation;

through the hydraulic power unit 5, the movable end of the operating hydraulic cylinder 42 is retracted, the clamping sleeve 48 on the pressure-bearing frame 41 is separated from the node mounting seat 61 by the hand-held handrail 43, and then the frame pressing mechanism 4 is moved away from the node mounting seat 61 through the connecting rod mechanism 3, so that the operation is completed.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (8)

1. The utility model provides a motor car motor node moves back pressure release dress system, its characterized in that, including motor fixed platform (1), floating box (2), link mechanism (3), press frame mechanism (4), hydraulic power unit (5), motor fixed platform (1) level holds up motor (6), floating box (2) are located motor fixed platform (1) one side, floating box (2) are including vertical lift's floating back shaft (22), link mechanism (3) are located the top of floating back shaft (22), press frame mechanism (4) with link mechanism (3) rotate and connect, press frame mechanism (4) include pressure-bearing frame (41), pneumatic cylinder (42), direction frock and cutting ferrule (48), cutting ferrule (48) are fixed in on pressure-bearing frame (41), cutting ferrule (48) butt in node mount pad (61), pneumatic cylinder (42) one end level is fixed in on pressure-bearing frame (41), the other end is the expansion end butt in direction motor, direction frock (62) are connected with hydraulic power unit (5) hydraulic power unit (42) are provided.

2. The motor car motor node pressure relief loading system according to claim 1, wherein the link mechanism (3) comprises a high-strength link (31) and a frame pressing fixed block (32), one end of the high-strength link (31) is rotatably connected to the floating support shaft (22), the other end of the high-strength link is rotatably connected with the frame pressing fixed block (32), and more than one revolute pair is arranged between two end parts of the high-strength link (31).

3. The motor car motor node pressure relief loading system according to claim 2, wherein the frame pressing mechanism (4) comprises a frame pressing supporting spring (44) and a frame pressing connecting block (45), two ends of the frame pressing supporting spring (44) are respectively abutted to the pressure-bearing frame (41) and the frame pressing fixed block (32), the frame pressing connecting block (45) is fixed to the bottom of the frame pressing frame (41), and the frame pressing connecting block (45) is fixedly connected with the frame pressing fixed block (32).

4. The bullet train motor node pressure relief loading system according to claim 1, wherein a sliding channel is arranged at the center of the clamping sleeve (48) for the guide tool to pass through, the guide tool comprises a guide block (46) and a pressing block (47), the guide block (46) is slidably connected with the mounting hole and the sliding channel, a clamping groove is arranged on one side, facing the motor node (62), of the guide block (46), the clamping groove is used for limiting the motor node (62), and the pressing block (47) is detachably connected with the movable end.

5. A motor car motor node withdrawal pressure relief system according to claim 2, characterized in that the frame pressing mechanism (4) comprises an armrest (43), the armrest (43) being fixed to the pressure-bearing frame (41).

6. The motor car motor node pressure relief loading system according to claim 1, wherein the floating box (2) comprises a box body (21), a counterweight (23), a transmission chain (24) and a sprocket, wherein the sprocket is arranged in the box body (21), the transmission chain (24) is in transmission connection with the sprocket, two ends of the transmission chain (24) are respectively fixed on the counterweight (23) and the floating support shaft (22), and the side surface of the floating support shaft (22) is in sliding connection with the box body (21) through a sliding block.

7. The motor car motor node pressure relief loading system according to claim 6, wherein the floating box (2) comprises a locking device (25) and a foot switch (26), wherein the locking device (25) is fixed on the box body (21), the locking device (25) is abutted on the floating support shaft (22), and the foot switch (26) is in signal communication with the locking device (25).

8. The motor car motor node pressure relief loading system according to claim 1, wherein the motor fixing platform (1) comprises a motor supporting table (11), an angle self-adaptive table top (12), a limiting device (13) and a guiding device (14), the hydraulic power unit (5) is installed at the bottom of the motor supporting table (11), the limiting device (13) is fixedly arranged on the top surface of the motor supporting table (11), the angle self-adaptive table top (12) is installed on the limiting device (13), the angle self-adaptive table top (12) is locked by the limiting device (13), the guiding device (14) is fixedly arranged on the angle self-adaptive table top (12), and the motor (6) is positioned by the guiding device (14).