A mounting base for a traction motor of a rail vehicle

Abstract

The present application relates to the technical field of motor bases, and discloses a mounting base for traction motors of rail vehicles, which is used to solve the problem that the threaded hole of the traction motor is difficult to accurately align with the mounting hole of the mounting base. A limit block and a moving block are provided in a sliding groove on one side of the mounting hole, the lower end of the moving block is threadedly connected with a threaded column I, and the side wall of the upper end of the moving block is provided with a telescopic strip, a threaded column II and a plug column; when the threaded hole of the traction motor is close to the mounting hole of the mounting base, the moving block is moved up by twisting the threaded column I, and the threaded column II is twisted to adjust the extension length of the telescopic strip, so that the plug column is inserted into the threaded hole. At this time, the position of the traction motor is adjusted by rotating the threaded column II in the opposite direction, and then the descending traction motor and the moving block are guided by the limit block and rotated back to the original position, so that the threaded hole of the traction motor and the mounting hole of the mounting base are in the same straight line, so as to prevent the threaded hole and the mounting hole from deviating, and the position of the traction motor is adjusted for a long time, which affects the installation efficiency of the traction motor.

Description

Technical Field

[0001] The present application relates to the technical field of motor bases, and in particular to a mounting base for a traction motor of a rail vehicle. Background Art

[0002] The rail vehicle traction motor is a vital component in the rail transit system. It is responsible for converting electrical energy into mechanical energy to drive the vehicle. Most of the existing traction motor mounting seats are installed together with the crossbeam of the rail vehicle bogie through a fixed connection, and then the traction motor is fixedly installed on the mounting seat to fix the traction motor.

[0003] After the traction motor is placed on the mounting seat, it is necessary to insert the fastening bolt into the mounting hole of the mounting seat so that the fastening bolt can rotate relative to the threaded hole of the motor to fix the traction motor. However, in the process of placing the traction motor on the mounting seat, when aligning the threaded hole of the traction motor with the mounting hole of the mounting seat, a certain deviation is inevitable, so that the axis of the threaded hole of the traction motor and the axis of the mounting hole of the mounting seat are not in the same straight line, which makes it difficult for the fastening bolt to pass through the threaded hole of the traction motor and the mounting hole of the mounting seat to fix. In addition, in the subsequent process of adjusting the alignment of the threaded hole of the traction motor and the mounting hole of the mounting seat, a long time will be wasted to adjust the position of the traction motor, which greatly affects the installation efficiency of the traction motor. Summary of the invention

[0004] The present application proposes a mounting base for a rail vehicle traction motor, which has the advantage of accurately adjusting the position of the threaded hole of the traction motor and the mounting hole of the mounting base, and is used to solve the problem that the threaded hole of the traction motor and the mounting hole of the mounting base are difficult to accurately align.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a mounting seat for a traction motor of a rail vehicle, comprising a mounting seat and a mounting ring, a sleeve hole being provided in the middle of the mounting seat, a plurality of mounting holes being provided in an array on the upper end surface of the mounting seat, and the mounting seat being provided with: a sliding groove being provided on a side of the mounting hole close to the edge of the mounting seat; two limit blocks being fixedly mounted on the inner wall of the sliding groove and symmetrically arranged, the top of the limit block being composed of two inclined surfaces, and the connection part of the two inclined surfaces being high and the edge being low; a moving block being slidably mounted in the sliding groove; a threaded column I being threadedly connected in the moving block, and the bottom end extending out of the moving block; a storage groove being provided on the mounting seat between the mounting hole and the sliding groove; a telescopic strip, one end of which is slidably inserted into the top end of the side wall of the moving block close to the mounting hole, and the other end extending into the storage groove; a threaded column II being inserted into the side wall of the moving block away from the mounting hole, and one end located inside the moving block being threadedly connected to the telescopic strip; an insertion column being provided at one end of the telescopic strip being in the storage groove.

[0006] Furthermore, the sliding groove is provided with: a retaining ring, which is fixedly sleeved on the bottom end of the threaded column I in the sliding groove; a limiting ring, which is movably sleeved on the outside of the retaining ring, and the limiting ring is close to the side wall of the sliding groove and symmetrically provided with ball grooves; an elastic block, which is fixedly embedded in the bottom end of the inner wall of the sliding groove and is symmetrically arranged; a ball, which is movably embedded in the elastic block and one side is in the ball groove of the limiting ring.

[0007] Furthermore, the depth of the storage groove is greater than the height of the plug post.

[0008] Furthermore, a ring groove is provided at the bottom end of the side wall of the mounting hole, a detection spring is fixedly connected in the ring groove, a slip ring is fixedly connected to the other end of the detection spring, the top end of the slip ring is slidably arranged in the ring groove, and the bottom end of the slip ring extends out of the ring groove.

[0009] Furthermore, the mounting seat is also provided with: a top column, fixedly connected to the end face of the slip ring at one end in the ring groove; a rotating groove, opened on the mounting seat of the side wall of the storage groove; a torsion spring, movably sleeved on the telescopic strip in the plug column, one end fixedly connected to the plug column, and the other end fixedly connected to the plug column; a movable groove, opened in the middle position of the bottom end of the rotating groove; a power rod, slidably installed on the top end of the movable groove, and the top end of the power rod extends out of the movable groove; an elastic column, fixedly connected to the bottom end of the power rod; a limit rod, fixedly connected to the bottom end of the elastic column; a limit sleeve, fixedly installed at the bottom end of the side wall of the power rod and the top end of the side wall of the limit rod; an elastic ring, fixedly connected to the bottom end of the limit sleeve on the limit rod.

[0010] Furthermore, under normal conditions, the plug post is placed vertically, and after the plug post rotates around the axis of the telescopic bar, the torsion spring has a torque that causes the plug post to rotate in the opposite direction around the axis of the telescopic bar.

[0011] Furthermore, the bottom end of the limiting rod is an inclined surface.

[0012] Furthermore, a twisting groove is provided at the middle position of the bottom end of the limiting rod.

[0013] This application has the following beneficial effects:

[0014] 1. The present application provides a mounting seat for a traction motor of a rail vehicle, wherein a sliding groove is provided on one side of a mounting hole, a limit block is fixedly provided in the sliding groove, a moving block is slidably provided in the sliding groove, a threaded column I is threadedly connected to the lower end of the moving block, a telescopic strip is movably provided on the side of the moving block close to the mounting hole, a threaded column II is threadedly connected to the end of the telescopic strip away from the mounting hole, and an insertion column is provided on the end of the telescopic strip close to the mounting hole; when the traction motor is hoisted above the mounting seat and the threaded hole of the traction motor is close to the mounting hole of the mounting seat, the moving block is moved up by twisting the threaded column I, the limit block is no longer limited, and then the threaded column II is twisted to make the telescopic strip drive the insertion column to extend, and finally, the moving block, the telescopic strip and the insertion column are driven to rotate by rotating the threaded column I, so that the insertion column is in the position of the traction motor The bottom end of the threaded hole is inserted into the threaded hole of the traction motor. At this time, the telescopic bar and the plug column drive the traction motor to move by rotating the threaded column II in the opposite direction, until the distance between the axis center of the threaded hole of the plug column and the traction motor and the axis center of the moving block is consistent with the distance between the axis center of the mounting hole and the axis center of the moving block. At this time, the traction motor descends. During the descent, the moving block is guided by the inclined surface above the limit block, so that the moving block rotates back to the original angle, so that the moving block drives the telescopic bar, the plug column and the traction motor to rotate, so that the axis center of the threaded hole of the traction motor and the axis center of the mounting hole of the mounting seat are in the same straight line, which can be accurately aligned to prevent the threaded hole of the traction motor and the mounting hole of the mounting seat from deviating, and adjusting the position of the traction motor for a long time, affecting the installation efficiency of the traction motor.

[0015] 2. The present application provides a mounting seat for a rail vehicle traction motor, in which an annular groove is opened on the lower end surface of the edge of the mounting hole, a detection spring and a slip ring are arranged in the annular groove, and the slip ring protrudes from the annular groove; when the mounting seat and the traction motor are fixed with a fastening bolt, the hexagonal head of the fastening bolt squeezes the slip ring to make the slip ring slide into the annular groove, and when the slip ring slides into the annular groove as a whole, the squeezing amount of the detection spring reaches a set degree, so that the fastening bolt completes the fixation of the mounting seat and the traction motor.

[0016] 3. The present application provides a mounting seat for a traction motor of a rail vehicle, in which a top column is fixedly installed on a slip ring, a rotating groove and a movable groove are opened on the mounting seat on one side of the plug column, and a power rod, an elastic column, a limit rod and an elastic ring are arranged in the movable groove; when the fastening bolt squeezes the slip ring, the slip ring drives the top column to move into the ring groove, and when the top end of the top column presses against one side of the plug column, the plug column rotates around the telescopic bar, thereby causing the plug column to rotate in the rotating groove. At this time, the plug column pushes the power rod, the elastic column and the limit rod, causing the limit rod to slide toward the bottom end of the movable groove, thereby causing the limit rod to limit one side of the hexagonal head of the fastening bolt, so that the fastening bolt no longer rotates, thereby preventing the fastening bolt from rotating in the opposite direction when the rail vehicle vibrates, causing the fixation of the traction motor and the mounting seat to loosen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0018] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a partial cross-sectional view of the present invention from the axis center of the sleeve hole;

[0021] Figure 3 For the present invention Figure 2 A magnified view of the local structure at center A;

[0022] Figure 4 is a cross-sectional view of a moving block of the present invention;

[0023] Figure 5 It is a partial cross-sectional view of the present invention from the axis of the moving groove;

[0024] Figure 6 For the present invention Figure 5 A magnified view of the local structure at B in the middle;

[0025] Figure 7 It is a partial cross-sectional view of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of the local structure at point C in the middle.

[0027] In the figure: 1. mounting seat; 101. sleeve hole; 102. mounting hole; 103. sliding groove; 104. limit block; 105. moving block; 106. threaded column I; 107. retaining ring; 108. limit ring; 109. elastic block; 110. ball; 111. telescopic strip; 112. threaded column II; 113. plug column; 114. ring groove; 115. detection spring; 116. sliding ring; 117. top column; 118. rotating groove; 119. torsion spring; 120. moving groove; 121. power rod; 122. elastic column; 123. limit rod; 124. elastic ring; 125. storage groove; 2. mounting ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Embodiment 1

[0030] See also Figure 1 and Figure 2 A mounting seat for a traction motor of a rail vehicle comprises a mounting seat 1 and a mounting ring 2. A sleeve hole 101 penetrating the mounting seat 1 is provided in the middle position of the mounting seat 1. During installation, the sleeve hole 101 of the mounting seat 1 is sleeved on the horizontal axis of the bogie. The mounting rings 2 are fixedly installed at both ends of the mounting seat 1. The axis center of the center hole of the mounting ring 2 is in the same straight line as the axis center of the sleeve hole 101 of the mounting seat 1. A plurality of mounting holes 102 are provided in an array on the upper end surface of the mounting seat 1.

[0031] See also Figure 2 and Figure 3 A sliding groove 103 penetrating the mounting seat 1 is provided on one side of the mounting hole 102 near the edge of the mounting seat 1. Two symmetrically arranged limit blocks 104 are fixedly installed on the inner wall of the sliding groove 103. The top of the limit block 104 consists of two inclined surfaces, and the connection between the two inclined surfaces is high and the edge is low. A moving block 105 is slidably installed in the sliding groove 103. The limit block 104 guides the moving block 105 to prevent the moving block 105 from rotating in the limit block 104. The length of the moving block 105 is less than the height of the sliding groove 103; please refer to Figure 3 and Figure 4 The internal thread of the moving block 105 is connected with a threaded column Ⅰ106, the bottom end of the threaded column Ⅰ106 extends out of the moving block 105, and the bottom end of the moving block 105 is a hexagonal head, which is convenient for using a wrench to rotate the threaded column Ⅰ106; please refer to Figure 3 and Figure 4 A storage groove 125 is provided on the mounting base 1 between the mounting hole 102 and the sliding groove 103, and the top of the moving block 105 near the side wall of the mounting hole 102 is movably inserted into the telescopic strip 111, and the side wall of the telescopic strip 111 is fixedly installed with a limit strip to prevent the telescopic strip 111 from rotating, one end of the telescopic strip 111 is inserted into the moving block 105, and the other end of the telescopic strip 111 extends into the storage groove 125, and the end of the telescopic strip 111 in the storage groove 125 is sleeved with a plug column 113, and the top of the moving block 105 away from the side wall of the mounting hole 102 is plugged with a threaded column II 112, and one end of the threaded column II 112 located inside the moving block 105 is threadedly connected to the telescopic strip 111, and the other end of the threaded column II 112 is a hexagonal head and extends to the outside of the mounting base 1, and a recess for the threaded column 112 to move up and down is provided at the edge of the mounting base 1.

[0032] See also Figure 3 and Figure 4The bottom end of the threaded column Ⅰ106 in the sliding groove 103 is fixedly sleeved with a retaining ring 107, and a limiting ring 108 is movably sleeved on the outer side of the retaining ring 107. The limiting ring 108 is at the bottom end of the inner wall of the sliding groove 103. The retaining ring 107 and the limiting ring 108 can rotate relatively. The limiting ring 108 is symmetrically provided with ball grooves close to the side wall of the sliding groove 103. The bottom end of the inner wall of the sliding groove 103 is symmetrically embedded with elastic blocks 109, and balls 110 are movably embedded on the elastic blocks 109. One side of the ball 110 is movably arranged in the ball groove of the limiting ring 108. Under the action of the elastic force of the elastic block 109, the ball 110 is pushed into the ball groove of the limiting ring 108 to limit the limiting ring 108.

[0033] The depth of the storage slot 125 is greater than the height of the plug post 113 , so as to ensure that the plug post 113 can be placed in the storage slot 125 , and prevent the plug post 113 from obstructing the traction motor from being placed on the mounting seat 1 .

[0034] The working principle of the first embodiment of the present invention is as follows:

[0035] See also Figure 1-Figure 4When installing the traction motor on the mounting base 1, first, lift the traction motor so that the threaded hole of the traction motor is roughly aligned with the mounting hole 102 of the mounting base 1, and lower the traction motor to a certain height. At this time, by twisting the threaded column Ⅰ106, the thread of the threaded column Ⅰ106 pushes the moving block 105 to move upward, and the upward moving block 105 drives the telescopic strip 111, the threaded column Ⅱ112 and the plug column 113 to move upward until the lowest point of the moving block 105 is higher than the top of the limit block 104. When the threaded column Ⅰ106 is rotated, the threaded column Ⅰ106 rotates in the same direction as the moving block 105, the telescopic strip 111, the threaded column Ⅱ112 and the plug 113. When the plug 113 is not at the bottom end of the threaded hole of the traction motor, the threaded column Ⅱ112 is rotated to make the thread of the threaded column Ⅱ112 push the telescopic strip 111 and the plug 113 to move until the plug 113 is at the bottom end of the threaded hole of the traction motor. At this time, the plug 113 is inserted into the threaded hole of the traction motor, and then the threaded column Ⅱ112 is rotated in the opposite direction. 112, so that the thread of the threaded column II 112 drives the telescopic strip 111, the plug column 113 and the traction motor to move, until the distance between the axis center of the threaded hole of the plug column 113 and the traction motor and the axis center of the moving block 105 is consistent with the distance between the axis center of the mounting hole 102 and the axis center of the moving block 105. At this time, the traction motor descends toward the upper surface of the mounting seat 1. During the descent of the traction motor, the traction motor pushes the plug column 113, the telescopic strip 111, the threaded column II 112, the moving block 105 and the threaded column I 106 to move downward , the downward moving block 105 is guided by the inclined surface above the limit block 104, so that the moving block 105 rotates back to the original angle, so that the moving block 105 drives the telescopic strip 111, the plug column 113 and the traction motor to rotate, so that the axis of the threaded hole of the traction motor and the axis of the mounting hole 102 of the mounting seat 1 are on the same straight line, and can be accurately aligned, thereby preventing the threaded hole of the traction motor and the mounting hole 102 of the mounting seat 1 from deviating, and adjusting the position of the traction motor for a long time, which affects the installation efficiency of the traction motor;

[0036] After placing the traction motor, the threaded column I 106 is continuously rotated to be retracted into the moving block 105, and after the ball 110 is stuck in the ball groove of the limiting ring 108, the thread of the threaded column I 106 pulls the moving block 105, the telescopic strip 111, the threaded column II 112 and the plug 113 downward, so that the plug 113 is disengaged from the threaded hole of the traction motor. At the same time, the threaded column II 112 is rotated so that the thread of the threaded column II 112 pulls the telescopic strip 111 and the plug 113 toward the moving block 105 until the plug 113 is in the storage slot 125 and no longer blocks the mounting hole 102 of the mounting seat 1 and the threaded hole of the traction motor.

[0037] Embodiment 2

[0038] Embodiment 2 is a further improvement on embodiment 1.

[0039] The difference from the first embodiment is that, please refer to Figure 3 A ring groove 114 is provided at the bottom end of the side wall of the mounting hole 102, and a detection spring 115 is fixedly connected in the ring groove 114. A slip ring 116 is fixedly connected to the other end of the detection spring 115. The top end of the slip ring 116 is slidably arranged in the ring groove 114, and the bottom end of the slip ring 116 extends out of the ring groove 114. The detection spring 115 is a spring with a large elastic coefficient. When the compression amount of the detection spring 115 is small, a larger extrusion force is required.

[0040] See also Figure 5 and Figure 6 The end surface of the slip ring 116 at one end of the ring groove 114 is fixedly connected to a top column 117, and a rotating groove 118 is provided on the mounting seat 1 on the side wall of the storage groove 125; please refer to Figure 4 A torsion spring 119 is movably mounted on the telescopic bar 111 in the plug post 113. One end of the torsion spring 119 is fixedly connected to the plug post 113, and the other end of the torsion spring 119 is fixedly connected to the plug post 113. In a normal state, the plug post 113 is placed vertically. After the plug post 113 rotates around the axis of the telescopic bar 111, the torsion spring 119 has a torque that causes the plug post 113 to rotate in the opposite direction around the axis of the telescopic bar 111. Please refer to Figure 5-Figure 8 A movable groove 120 that penetrates the mounting seat 1 is provided in the middle position of the bottom end of the rotating groove 118. The movable groove 120 is thick in the middle and thin at both ends. A power rod 121 is slidably installed at the top of the movable groove 120. The top of the power rod 121 extends out of the movable groove 120. The bottom end of the power rod 121 is fixedly connected with an elastic column 122. The bottom end of the elastic column 122 is fixedly connected with a limiting rod 123. The bottom end of the limiting rod 123 is in the movable groove 120. The bottom end of the side wall of the power rod 121 and the top end of the side wall of the limiting rod 123 are fixedly installed with a limiting sleeve to prevent the power rod 121 and the limiting rod 123 from falling off from the movable groove 120. The bottom end of the limiting sleeve of the limiting rod 123 is fixedly connected with an elastic ring 124, and the elastic ring 124 supports the limiting rod 123.

[0041] See also Figure 8 The bottom end of the limit rod 123 is an inclined surface. When the fastening bolt is used for fixing, when the fastening bolt is installed, the hexagonal head of the fastening bolt presses the inclined surface of the limit rod 123, so that the fastening bolt can rotate normally. When the fastening bolt is removed, the hexagonal head of the fastening bolt is blocked by the limit rod 123 to prevent the fastening bolt from rotating in the opposite direction.

[0042] A twisting groove is provided in the middle of the bottom end of the limiting rod 123. When removing the fastening bolt, the limiting rod 123 is rotated 180 degrees by inserting a screwdriver into the twisting groove, thereby changing the direction of the inclined surface at the bottom end of the limiting rod 123. In the process of removing the fastening bolt, the hexagonal head of the fastening bolt presses the inclined surface of the limiting rod 123, so that the limiting rod 123 no longer hinders the rotation of the hexagonal head of the fastening bolt.

[0043] The working principle of the second embodiment of the present invention is as follows:

[0044] See also Figure 1-Figure 8 , after placing the traction motor on the upper end of the mounting seat 1 and aligning the threaded hole of the traction motor with the mounting hole 102 of the mounting seat 1, the plug 113 is returned to the storage groove 125 by rotating the threaded column I 106 and the threaded column II 112. At this time, the threaded end of the fastening bolt is inserted into the mounting hole 102 and the threaded hole of the traction motor. In the process of twisting the fastening bolt into the threaded hole of the traction motor, the hexagonal head of the fastening bolt squeezes the slip ring 116, so that the slip ring 116 squeezes the detection spring 115. When the hexagonal head of the fastening bolt completely squeezes the slip ring 116 into the annular groove 114, the detection spring 115 is compressed to a certain limit. At this time, it means that the tightening force of the hexagonal head of the fastening bolt on the mounting seat 1 reaches the required force;

[0045] In addition, when the hexagonal head of the fastening bolt squeezes the slip ring 116 and moves the slip ring 116 into the annular groove 114, the slip ring 116 drives the top column 117 on the slip ring 116 to move. At this time, the top end of the top column 117 is inserted into the storage groove 125, thereby pushing the plug column 113 to rotate around the axis of the threaded column II 112, so that the top end of the plug column 113 rotates to the rotating groove 118, and the plug column 113 rotated in the rotating groove 118 squeezes the top end of the power rod 121, and the bottom end of the power rod 121 squeezes the elastic column 122 and the limit rod 123, so that the limit rod 123 moves downward, and the bottom end of the limit rod 123 extends out. The movable groove 120, during the process of tightening the fastening bolt, the rotation direction of the hexagonal head of the fastening bolt is toward the inclined surface of the lower limiting rod 123, so that the hexagonal head of the fastening bolt can push the inclined surface of the limiting rod 123, so that the limiting rod 123 moves into the movable groove 120 to prevent the limiting rod 123 from hindering the rotation of the fastening bolt. When the rail vehicle vibrates, if the fastening bolt rotates in the opposite direction, the hexagonal head of the fastening bolt that rotates in the opposite direction faces the protruding limiting rod 123, and the protruding limiting rod 123 limits the hexagonal head of the fastening bolt to prevent the fastening bolt from rotating in the opposite direction, thereby avoiding looseness between the traction motor and the mounting base 1.

Claims

1. A mounting seat for a traction motor of a rail vehicle, comprising a mounting seat (1) and a mounting ring (2), wherein a sleeve hole (101) is provided in the middle of the mounting seat (1), and a plurality of mounting holes (102) are provided in an array on an upper end surface of the mounting seat (1), characterized in that: The mounting seat (1) is provided with: A sliding groove (103) is formed on one side of the mounting hole (102) close to the edge of the mounting seat (1); Two limit blocks (104) are fixedly mounted on the inner wall of the sliding groove (103) and are symmetrically arranged, wherein the top of the limit block (104) is composed of two inclined surfaces, and the connection between the two inclined surfaces is high and the edge is low; A moving block (105) is slidably mounted in the sliding groove (103), and the moving block (105) is guided by the inclined surface above the limiting block (104); A threaded column I (106) is threadedly connected in the moving block (105) and has a bottom end extending out of the moving block (105); A storage groove (125) is provided on the mounting seat (1) between the mounting hole (102) and the sliding groove (103); A telescopic bar (111), one end of which is slidably inserted into the top end of the side wall of the moving block (105) close to the mounting hole (102), and the other end of which extends into the storage groove (125); A threaded column II (112) is inserted into a side wall of the moving block (105) away from the mounting hole (102), and one end located inside the moving block (105) is threadedly connected to the telescopic strip (111); The plug post (113) is disposed at one end of the telescopic strip (111) located in the storage groove (125).

2. A mounting base for a rail vehicle traction motor according to claim 1, characterized in that: The sliding groove (103) is provided with: A retaining ring (107) is fixedly sleeved on the bottom end of the threaded column I (106) in the sliding groove (103); A limiting ring (108) is movably sleeved on the outside of the retaining ring (107), and the limiting ring (108) is closely attached to the side wall of the sliding groove (103) and symmetrically provided with ball grooves; An elastic block (109) is fixedly embedded in the bottom end of the inner wall of the sliding groove (103) and is symmetrically arranged; The ball (110) is movably embedded in the elastic block (109), and one side of the ball is located in the ball groove of the limiting ring (108).

3. A mounting base for a rail vehicle traction motor according to claim 2, characterized in that: The depth of the storage groove (125) is greater than the height of the plug post (113).

4. A mounting base for a rail vehicle traction motor according to claim 2, characterized in that: An annular groove (114) is provided at the bottom end of the side wall of the mounting hole (102), a detection spring (115) is fixedly connected in the annular groove (114), a slip ring (116) is fixedly connected to the other end of the detection spring (115), the top end of the slip ring (116) is slidably arranged in the annular groove (114), and the bottom end of the slip ring (116) extends out of the annular groove (114).

5. A mounting base for a rail vehicle traction motor according to claim 4, characterized in that: The mounting seat (1) is also provided with: A top column (117) is fixedly connected to an end surface of the slip ring (116) at one end in the ring groove (114); A rotating groove (118) is formed on a mounting seat (1) on a side wall of the storage groove (125); A torsion spring (119) is movably sleeved on the telescopic strip (111) in the plug post (113), one end of which is fixedly connected to the plug post (113), and the other end of which is fixedly connected to the plug post (113); A movable groove (120) is provided at a middle position of the bottom end of the rotating groove (118); A power rod (121) is slidably mounted on the top end of the movable groove (120), and the top end of the power rod (121) extends out of the movable groove (120); An elastic column (122) is fixedly connected to the bottom end of the power rod (121); A limiting rod (123) fixedly connected to the bottom end of the elastic column (122); A limiting sleeve fixedly mounted on the bottom end of the side wall of the power rod (121) and the top end of the side wall of the limiting rod (123); The elastic ring (124) is fixedly connected to the bottom end of the upper limit sleeve of the limit rod (123).

6. A mounting base for a rail vehicle traction motor according to claim 5, characterized in that: In a normal state, the plug post (113) is placed vertically, and after the plug post (113) rotates around the axis of the telescopic bar (111), the torsion spring (119) has a torque that causes the plug post (113) to rotate in the opposite direction around the axis of the telescopic bar (111).

7. A mounting base for a rail vehicle traction motor according to claim 5, characterized in that: The bottom end of the limiting rod (123) is an inclined surface.

8. The mounting base for a rail vehicle traction motor according to claim 5, characterized in that: A twisting groove is provided at the middle position of the bottom end of the limiting rod (123).

Images