Electric vehicle speed reducer device easy to install

Abstract

The utility model relates to the technical field of speed reducers, in particular to an electric vehicle speed reducer device easy to install, which comprises a support, the support is fixedly connected on a frame beam, a speed reducer body is arranged below the support, and a first rotating rod is vertically arranged in an inner cavity in the middle of the support. The two ends of the first rotating rod are movably inserted into the rotating holes in the top and the bottom of the support respectively, clamping structures are arranged in inner cavities in the two ends of the support respectively, the inner ends of the two clamping structures are connected with the corresponding positions of the transmission gear set respectively, and through holes are formed in the bottoms of the two ends of the support respectively; two limiting pieces are arranged at the top of the speed reducer body in a spaced mode, the two limiting pieces penetrate through the through holes in the corresponding positions and extend into the support in the working state, and the two clamping structures clamp and fix the limiting pieces in the corresponding positions correspondingly. The speed reducer has the advantages that the installation process of the speed reducer body is greatly simplified, the installation efficiency is improved, and an operator can operate the speed reducer in a narrow space conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to an electric vehicle reducer device which is easy to install. Background Art

[0002] A reducer is a machine that is installed between the prime mover and the working machine to match the rotational speed and transmit torque. In the field of electric vehicles, in order to enable the motor to achieve low-speed and high-torque drive, a reducer needs to be installed in the drive system.

[0003] For example, in the patent document with patent publication number CN204915297U, an electric vehicle reducer mounting structure is disclosed, which includes a reducer and a cross beam, and the reducer housing is provided with a first mounting portion and a second mounting portion integrally formed therewith; the first mounting portion and the second mounting portion are both located on one side of the housing close to the cross beam; the first mounting portion is used to be connected to the first rod of the cross beam, and the second mounting portion is used to be connected to the second rod of the cross beam.

[0004] According to the existing technical literature, the installation structure directly fixes the reducer on the crossbeam by means of a number of bolts. Although the connecting bracket is omitted, the operator is still required to tighten each bolt in turn in a narrow space, which not only results in low installation efficiency but also makes the operation extremely inconvenient.

[0005] To this end, the utility model optimizes and improves the problems of low installation efficiency and inconvenient installation of reducers in the prior art, and hereby proposes a new reducer device with a simple installation process and convenient installation and operation, so as to better solve the problems in the prior art. Utility Model Content

[0006] The utility model solves one of the above-mentioned technical problems and adopts the following technical scheme: an electric vehicle reducer device which is easy to install, comprises a bracket, wherein two ends of the bracket are respectively fixedly connected to corresponding side edges of a frame beam, a reducer body is arranged below the bracket, the interior of the bracket is hollow, a first rotating rod is vertically arranged in an inner cavity in the middle of the bracket, two ends of the first rotating rod are respectively movably inserted in the rotating holes at the top and bottom of the bracket, and also comprises a transmission gear set connected to the first rotating rod, a clamping structure is respectively arranged in the inner cavity at both ends of the bracket, the inner ends of the two clamping structures are respectively connected to corresponding positions of the transmission gear set, through holes are respectively opened on the bottoms at both ends of the bracket, two limiting members are spaced apart at corresponding positions on the top of the reducer body, in a working state, the two limiting members respectively pass through the through holes at corresponding positions and extend to the interior of the bracket, and the two clamping structures respectively clamp and fix the limiting members at corresponding positions.

[0007] In any of the above schemes, preferably, the transmission gear set includes a first gear, the first gear is coaxially fixedly sleeved on the middle part of the first rotating rod, and two driven gear members are spaced apart on both sides of the first gear;

[0008] The inner end of the driven gear member at the corresponding position is meshed and connected with the first gear, and the outer end of the driven gear member at the corresponding position is fixedly connected with the inner end of the clamping structure.

[0009] In any of the above schemes, preferably, the driven gear member includes a second rotating rod, both ends of the second rotating rod are movably inserted into the rotating holes at the top and bottom of the bracket respectively, and a second gear and a first bevel gear are spaced from top to bottom and coaxially fixedly sleeved in the middle of the second rotating rod, the second gear is meshingly linked with the first gear, and a second bevel gear is fixedly connected to the inner end at the corresponding position of the clamping structure, and the first bevel gear is meshingly connected with the second bevel gear.

[0010] In any of the above schemes, preferably, the clamping structure includes two driving members arranged at intervals along the width direction of the bracket, the two driving members are fixedly mounted on the inner wall of the bracket, the inner ends of the two driving members are respectively fixedly connected to the second bevel gears at corresponding positions, and also includes two fixing blocks arranged at intervals along the length direction of the bracket, the two fixing blocks are both connected with the inner part of the bracket in a sliding cooperation, and each of the driving members moves through the two fixing blocks in sequence;

[0011] The two fixing blocks are respectively arranged on both sides of the through hole at corresponding positions, and the inner side walls of the two fixing blocks are respectively abutted against the limiting member in a working state.

[0012] In any of the above schemes, preferably, the driving member includes a screw rod, the threaded sections at both ends of the screw rod have opposite threaded directions and respectively movably penetrate the threaded holes of the two fixed blocks at corresponding positions, and also includes two connecting plates, both of which are fixedly connected to the inner wall of the bracket, the two ends of the screw rod are respectively movably inserted in the rotating holes of the two connecting plates, and the inner end of the screw rod penetrates the connecting plates at the corresponding positions and is fixedly connected to the second bevel gear.

[0013] In any of the above schemes, preferably, the upper end of the first rotating rod passes through the top of the bracket and is movably connected to the inner end of a rocker, a first slot is opened in the middle of the rocker, and a second slot is opened at a corresponding position on the top of the bracket, and also includes a positioning pin for locking the rocker, and in the working state, the lower end of the positioning pin passes through the first slot and the second slot in sequence and is clamped on the top inner wall of the bracket.

[0014] In any of the above schemes, it is preferred that the locating pin includes a plug-in column, two clamping blocks are spaced apart on the circumferential outer wall at the lower end of the plug-in column, an abutment block is fixedly connected to the upper end of the plug-in column, and a screwing block is fixedly connected to the top of the abutment block, and the shapes of the first slot hole and the second slot hole are matched with the external contour of the lower end of the locating pin. When the rocker is in a locked state, the plug-in column is sequentially inserted into the interior of the first slot hole and the second slot hole, and the two clamping blocks are both clamped on the top inner wall of the bracket, and the abutment block is pressed against the top of the rocker.

[0015] In any of the above schemes, preferably, sliding grooves are provided at both ends of the fixing block, and sliding rails are fixedly connected to the vertical inner walls on both sides of the bracket, and the two sliding rails are movably connected to the corresponding sliding grooves respectively.

[0016] In any of the above schemes, it is preferred that the limiting member includes a connecting column, the lower end of the connecting column is fixedly connected to the reducer body, the upper end of the connecting column is fixedly connected to the limiting block, and semicircular grooves are respectively opened on the inner side walls of the two fixed blocks at corresponding positions. In the working state, the circumferential outer walls of the connecting column are respectively pressed against the two semicircular grooves, and the bottom of the limiting block is pressed against the tops of the two fixed blocks.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model rotates the first rotating rod by shaking the rocker, and then under the joint action of the transmission gear set and the driving members, the corresponding fixing blocks approach or move away from each other. When the corresponding fixing blocks approach each other, the two limiting members can be conveniently and quickly clamped and fixed synchronously, thereby completing the fixed installation of the reducer body. When the corresponding fixing blocks move away from each other, the two limiting members can be conveniently and quickly released synchronously, thereby completing the disassembly of the reducer body. This not only ensures the installation firmness of the reducer body and the normal operation of the electric vehicle, but also saves the tightening work of multiple connecting bolts between the reducer body and the bracket. The installation of the reducer body is achieved only by rotating the rocker, which greatly simplifies the installation process of the reducer body, improves the installation efficiency, and is convenient for operators to operate in a narrow space.

[0019] 2. The utility model assembles the positioning pin with the first slot hole and the second slot hole, and simultaneously presses the clamping block and the abutting block together, so that when the fixing block clamps the limit piece, the rocker can be locked and limited to prevent it from continuing to rotate, thereby ensuring the stability of the fixing block clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0022] Figure 2 It is a partial cross-sectional view of the bracket of the utility model when viewed from above.

[0023] Figure 3 for Figure 2 Section view at line AA.

[0024] Figure 4 Schematic diagram of the connection structure between the driving member and the fixed block.

[0025] Figure 5 for Figure 3 A partial enlarged view of point B in the middle.

[0026] Figure 6 for Figure 5 Schematic diagram of the action of the positioning pin.

[0027] In the figure, 1, bracket; 2, frame beam; 3, reducer body; 4, first rotating rod; 5, through hole; 6, first gear; 7, second rotating rod; 8, second gear; 9, first bevel gear; 10, second bevel gear; 11, fixing block; 12, screw rod; 13, connecting plate; 14, rocker; 15, first slot hole; 16, second slot hole; 17, plug-in column; 18, clamping block; 19, abutment block; 20, screw block; 21, slide groove; 22, slide rail; 23, connecting column; 24, limit block; 25, semicircular groove. DETAILED DESCRIPTION

[0028] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 6 as shown in .

[0029] A simple-to-install electric vehicle reducer device comprises a bracket 1, wherein the two ends of the bracket 1 are respectively fixedly connected to the corresponding side edges of a frame beam 2, a reducer body 3 is arranged below the bracket 1, the interior of the bracket 1 is hollow, a first rotating rod 4 is vertically arranged in the inner cavity in the middle of the bracket 1, the two ends of the first rotating rod 4 are respectively movably inserted into the rotating holes at the top and bottom of the bracket 1, and also comprises a transmission gear set connected to the first rotating rod 4, a clamping structure is respectively arranged in the inner cavity at the two ends of the bracket 1, the inner ends of the two clamping structures are respectively connected to the corresponding positions of the transmission gear set, through holes 5 are respectively opened on the bottoms at the two ends of the bracket 1, two limiting members are spaced apart at the corresponding positions on the top of the reducer body 3, in the working state, the two limiting members respectively pass through the through holes 5 at the corresponding positions and extend to the interior of the bracket 1, and the two clamping structures respectively clamp and fix the limiting members at the corresponding positions.

[0030] The utility model fixes the two ends of the bracket 1 on the frame beam 2 by bolts, and then sets the reducer body 3 under the bracket 1, and at the same time, two limiters (interval welded on the top of the outer shell of the reducer body 3) pass through the corresponding through holes 5 respectively to extend into the inside of the bracket 1. The first rotating rod 4 can rotate with the cooperation of the rotating hole, and then drive the transmission gear set to work. Under the action of the transmission gear set, the two clamping structures move synchronously to clamp and fix the two corresponding limiters extending into the inside of the bracket 1 at the same time, so as to realize the fixed installation of the reducer body 3 on the bracket 1, and then fix the reducer body 3 on the frame beam 2 through the bracket 1. Similarly, the first rotating rod 4 is controlled to rotate in the opposite direction with the cooperation of the rotating hole, so that the clamping structure can release the corresponding limiter, so as to finally realize the removal of the reducer body 3 from the bracket 1. Through the utility model, not only can the reducer body 3 be firmly installed to ensure the normal operation of the electric vehicle, but also a plurality of connecting bolts between the reducer body 3 and the bracket 1 can be saved, so as to realize the convenient and quick installation of the reducer body 3.

[0031] In any of the above schemes, preferably, the transmission gear set includes a first gear 6, the first gear 6 is coaxially fixedly sleeved on the middle part of the first rotating rod 4, and two driven gear members are spaced apart on both sides of the first gear 6;

[0032] The inner end of the driven gear member at the corresponding position is meshed and connected with the first gear 6, and the outer end of the driven gear member at the corresponding position is fixedly connected with the inner end of the clamping structure.

[0033] The middle key of the first rotating rod 4 is connected to the first gear 6, and the first rotating rod 4 rotates to drive the first gear 6 to rotate. Two driven gear members are respectively arranged on both sides of the first gear 6 (the two driven gear members on one side are used to drive the corresponding clamping structure on the same side to move, and the two driven gear members on the other side are used to drive the corresponding clamping structure on the other side to move). Under the action of the first gear 6, the four driven gear members move synchronously, thereby driving the two clamping structures to move and clamp the corresponding limit members.

[0034] In any of the above schemes, it is preferred that the driven gear member includes a second rotating rod 7, both ends of the second rotating rod 7 are movably inserted into the rotating holes at the top and bottom of the bracket 1, and a second gear 8 and a first bevel gear 9 are spaced from top to bottom and coaxially fixedly sleeved in the middle of the second rotating rod 7, the second gear 8 is meshingly linked with the first gear 6, and a second bevel gear 10 is fixedly connected to the inner end at the corresponding position of the clamping structure, and the first bevel gear 9 is meshingly connected with the second bevel gear 10.

[0035] The second rotating rod 7 can realize free rotation with the cooperation of the rotating holes at the top and bottom of the bracket 1, and a second gear 8 is key-connected at the corresponding position in the middle of the second rotating rod 7. Under the meshing action of the second gear 8 and the first gear 6 (both are cylindrical spur gears), the rotation of the first gear 6 drives the second gear 8 to rotate, thereby further driving the second rotating rod 7 to rotate. A first bevel gear 9 is arranged below the second gear 8. The first bevel gear 9 is also fixedly sleeved on the second rotating rod 7 by a key connection. The first bevel gear 9 rotates with the second rotating rod 7. Under the meshing connection between the first bevel gear 9 and the second bevel gear 10, the second bevel gear 10 is driven to rotate, thereby realizing the movement of the corresponding clamping structure.

[0036] In any of the above schemes, it is preferred that the clamping structure includes two driving members spaced apart along the width direction of the bracket 1, the two driving members are fixedly mounted on the inner wall of the bracket 1, the inner ends of the two driving members are respectively fixedly connected to the second bevel gear 10 at corresponding positions, and also includes two fixing blocks 11 spaced apart along the length direction of the bracket 1, the two fixing blocks 11 are both connected to the inside of the bracket 1 in a sliding fit, and each of the driving members movably penetrates the two fixing blocks 11 in sequence;

[0037] The two fixing blocks 11 are respectively arranged on both sides of the through hole 5 at corresponding positions, and the inner side walls of the two fixing blocks 11 are respectively in contact with the limiting member in a working state.

[0038] The two driving members are fixedly connected to the inner wall of the bracket 1 at intervals along the width direction of the bracket 1, and the two fixing blocks 11 are movably assembled in the inner cavity of the bracket 1 at intervals along the length direction of the bracket 1. At the same time, each driving member moves through the two fixing blocks 11 in sequence (one driving member moves through the ends of the same side of the two fixing blocks 11 in sequence, and the other driving member moves through the ends of the other side of the two fixing blocks 11 in sequence), and the inner ends of the two driving members are respectively fixedly connected to the second bevel gears 10 at the corresponding positions, and the second bevel gears 10 rotate to drive the driving members to move, so that under the action of the two driving members, the two fixing blocks 11 move toward or away from each other along the inner cavity of the bracket 1. The through hole 5 is located below the two fixing blocks 11 and the two driving members, so that the limiting member extends between the two fixing blocks and the two driving members after passing through the through hole 5, and then the two fixing blocks 11 move inwardly toward each other under the action of the driving member until the inner side walls of the two fixing blocks 11 press against the limiting member, thereby achieving the clamping and fixing of the limiting member, and finally achieving the fixed installation of the reducer body 3.

[0039] In any of the above schemes, it is preferred that the driving member includes a screw 12, the threaded sections at both ends of the screw 12 have opposite threaded directions and respectively movably penetrate the threaded holes of the two fixed blocks 11 at corresponding positions, and also includes two connecting plates 13, both of which are fixedly connected to the inner wall of the bracket 1, and the two ends of the screw 12 are respectively movably inserted in the rotating holes of the two connecting plates 13, and the inner end of the screw 12 penetrates the connecting plates 13 at the corresponding positions and is fixedly connected to the second bevel gear 10.

[0040] The inner end of the screw 12 is fixedly connected to the second bevel gear 10. The rotation of the second bevel gear 10 drives the screw 12 to rotate with the cooperation of the two connecting plates 13. The threaded sections at both ends of the screw 12 respectively penetrate the threaded holes of the corresponding fixing blocks 11. At the same time, the threaded sections at both ends of the screw 12 have opposite thread rotation directions. In this way, when the screw 12 rotates driven by the second bevel gear 10, the two fixing blocks 11 move in opposite directions along the screw 12 under the action of the threaded cooperation, thereby achieving fixed clamping of the limit member.

[0041] In any of the above schemes, it is preferred that the upper end of the first rotating rod 4 passes through the top of the bracket 1 and is movably connected to the inner end of a rocker 14, a first slot 15 is provided in the middle of the rocker 14, and a second slot 16 is provided at a corresponding position on the top of the bracket 1, and also includes a positioning pin for locking the rocker 14. In the working state, the lower end of the positioning pin passes through the first slot 15 and the second slot 16 in sequence and is clamped on the top inner wall of the bracket 1.

[0042] The upper end of the first rotating rod 4 is movably connected to the inner end of a rocking rod 14, so that the first rotating rod 4 can be rotated by shaking the crank of the rocking rod 14. At the same time, a first slot 15 is opened in the middle of the rocking rod 14, and a second slot 16 is opened at a corresponding position on the top of the bracket 1. By inserting the positioning pin into the first slot 15 and the second slot 16 in sequence, the rocking rod 14 is locked to limit its rotation.

[0043] The size of the reducer is fixed, and the position and size of its limiter are also fixed. When the fixed block 11 clamps the limiter, the rocker 14 can no longer continue to rock, and the position of the rocker 14 is also limited. According to the position, the second slot 16 is pre-opened at the top of the bracket 1, and the first slot 15 is opened at the corresponding position in the middle of the rocker 14. When the rocker 14 rotates to the top of the second slot 16, the first slot 15 is just located above the second slot 16, so that the positioning pin can be inserted into the first slot 15 and the second slot 16 in sequence.

[0044] In any of the above schemes, it is preferred that the locating pin includes a plug-in column 17, two clamping blocks 18 are spaced apart on the circumferential outer wall at the lower end of the plug-in column 17, an abutment block 19 is fixedly connected to the upper end of the plug-in column 17, and a screwing block 20 is fixedly connected to the top of the abutment block 19, the shapes of the first slot 15 and the second slot 16 match the outer contour of the lower end of the locating pin, when the rocker 14 is in a locked state, the plug-in column 17 is sequentially inserted into the interior of the first slot 15 and the second slot 16, the two clamping blocks 18 are both clamped on the top inner wall of the bracket 1, and the abutment block 19 presses against the top of the rocker 14.

[0045] Two clamping blocks 18 are arranged at intervals on the circumferential outer wall of the lower end of the plug-in column 17, and grooves for cooperating with the two clamping blocks 18 are vertically opened on the inner walls of the first slot hole 15 and the second slot hole 16. On the premise that the two clamping blocks 18 respectively cooperate with the corresponding grooves, the plug-in column 17 is inserted into the first slot hole 15 and the second slot hole 16 in sequence, and its lower end passes through the top of the bracket 1, and the two clamping blocks 18 just pass through the second slot hole 16. Then, the screwing block 20 is twisted to make the two clamping blocks 18 respectively abut against the top inner wall of the bracket 1, and the abutting block 19 presses against the top of the rocker 14. Under the abutting action of the abutting block 19 and the two clamping blocks 18, the rocker 14 is locked to limit its continued rotation.

[0046] The surface of the clamping block 18 is provided with anti-skid grooves to increase the friction between it and the inner wall of the top of the bracket 1, thereby ensuring that it is stably clamped on the bracket 1.

[0047] In any of the above schemes, preferably, slide grooves 21 are opened at both ends of the fixing block 11, and slide rails 22 are fixedly connected to the vertical inner walls on both sides of the bracket 1, and the two slide rails 22 are movably connected to the corresponding slide grooves 21 respectively.

[0048] The cooperation and connection between the slide rail 22 and the slide groove 21 can make the movement of the fixing block 11 smoother.

[0049] In any of the above schemes, it is preferred that the limiting member includes a connecting column 23, the lower end of the connecting column 23 is fixedly connected to the reducer body 3, the upper end of the connecting column 23 is fixedly connected to the limiting block 24, and semicircular grooves 25 are respectively opened on the inner side walls of the two fixed blocks 11 at corresponding positions. In the working state, the circumferential outer walls of the connecting column 23 are respectively pressed against the two semicircular grooves 25, and the bottom of the limiting block 24 is pressed against the top of the two fixed blocks 11.

[0050] The provision of the semicircular groove 25 can increase the contact area between the fixing block 11 and the connecting column 23 and enhance the friction therebetween. Meanwhile, the limiting block 24 is welded on the top of the connecting column 23 to ensure the firmness of the fixing block 11 clamping.

[0051] Specific working principle:

[0052] The operator first rotates the rocker 14, which then drives the first rotating rod 4 and the first gear 6 to rotate. Under the meshing connection between the first gear 6 and the second gear 8, the second rotating rod 7 is driven to rotate, and then the first bevel gear 9 is driven to rotate. Under the meshing connection between the first bevel gear 9 and the second bevel gear 10, the screw rod 12 is driven to rotate. In this way, the rocker 14 can finally control each screw rod 12 to rotate, so that the two fixed blocks 11 at the corresponding positions are respectively separated from each other, and then the reducer body 3 is set below the bracket 1, and the connecting column 23 and the limit block 24 pass through the corresponding through hole 5 and extend between the two fixed blocks 11 at the corresponding positions. Then, the rocker 14 is rotated in the opposite direction, and the corresponding two fixed blocks 11 are close to each other until the semicircular groove 25 on the fixed block 11 abuts against the connecting column 23. At this time, the rotation of the rocker 14 is restricted, and the first slot 15 opened thereon just moves to the top of the second slot 16, and then the plug-in column 17 is inserted into the first slot 15 and the second slot 16 in turn, and the screw block 20 is rotated so that the clamping block 18 is clamped on the top inner wall of the bracket 1, and under the joint pressure of the abutment block 19 and the clamping block 18, the rocker 14 is locked to ensure the stable clamping of the fixing block 11.

[0053] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0054] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A speed reducer device for an electric vehicle that is easy to install, comprising a bracket (1), wherein both ends of the bracket (1) are respectively fixedly connected to corresponding side edges of a frame beam (2), and a speed reducer body (3) is provided below the bracket (1), characterized in that: The bracket (1) is hollow inside, and a first rotating rod (4) is vertically arranged in the inner cavity in the middle of the bracket (1). The two ends of the first rotating rod (4) are respectively movably inserted into the rotating holes at the top and bottom of the bracket (1). A transmission gear set connected to the first rotating rod (4) is also included. Clamping structures are respectively arranged in the inner cavities at the two ends of the bracket (1), and the inner ends of the two clamping structures are respectively connected to the corresponding positions of the transmission gear set. Through holes (5) are respectively opened on the bottoms at the two ends of the bracket (1). Two limiting members are spaced apart at corresponding positions on the top of the reducer body (3). In a working state, the two limiting members respectively pass through the through holes (5) at the corresponding positions and extend into the interior of the bracket (1), and the two clamping structures respectively clamp and fix the limiting members at the corresponding positions.

2. The electric vehicle reducer device with simple installation according to claim 1, characterized in that: The transmission gear set comprises a first gear (6), the first gear (6) being coaxially fixedly sleeved on the middle part of the first rotating rod (4), and two driven gear members being spaced apart on both sides of the first gear (6); The inner end of the driven gear member at the corresponding position is meshedly connected with the first gear (6), and the outer end of the driven gear member at the corresponding position is fixedly connected with the inner end of the clamping structure.

3. The electric vehicle reducer device with simple installation according to claim 2, characterized in that: The driven gear member comprises a second rotating rod (7), the two ends of the second rotating rod (7) being movably inserted into the rotating holes at the top and bottom of the bracket (1) respectively, a second gear (8) and a first bevel gear (9) being spaced apart and coaxially fixedly sleeved from top to bottom in the middle of the second rotating rod (7), the second gear (8) being meshingly linked with the first gear (6), a second bevel gear (10) being fixedly connected to the inner end at the corresponding position of the clamping structure, and the first bevel gear (9) being meshingly connected with the second bevel gear (10).

4. The electric vehicle reducer device with simple installation according to claim 3, characterized in that: The clamping structure comprises two driving members arranged at intervals along the width direction of the bracket (1), the two driving members are fixedly mounted on the inner wall of the bracket (1), the inner ends of the two driving members are respectively fixedly connected to the second bevel gear (10) at corresponding positions, and also comprises two fixing blocks (11) arranged at intervals along the length direction of the bracket (1), the two fixing blocks (11) are both connected to the inside of the bracket (1) in a sliding cooperation manner, and each of the driving members movably penetrates the two fixing blocks (11) in sequence; The two fixing blocks (11) are respectively arranged on both sides of the through hole (5) at corresponding positions, and in a working state, the inner side walls of the two fixing blocks (11) respectively abut against the limiting member.

5. The electric vehicle reducer device with simple installation according to claim 4, characterized in that: The driving member comprises a screw rod (12), the screw segments at both ends of the screw rod (12) have screw threads in opposite directions and are respectively movably inserted into the threaded holes of the two fixing blocks (11) at corresponding positions, and also comprises two connecting plates (13), the two connecting plates (13) are both fixedly connected to the inner wall of the bracket (1), the two ends of the screw rod (12) are respectively movably inserted into the rotating holes of the two connecting plates (13), and the inner end of the screw rod (12) is inserted into the connecting plates (13) at corresponding positions and is fixedly connected to the second bevel gear (10).

6. The electric vehicle reducer device with simple installation according to claim 5, characterized in that: The upper end of the first rotating rod (4) passes through the top of the bracket (1) and is movably connected to the inner end of a rocking arm (14); a first slot hole (15) is provided in the middle of the rocking arm (14); a second slot hole (16) is provided at a corresponding position on the top of the bracket (1); and a positioning pin for locking the rocking arm (14) is also included. In the working state, the lower end of the positioning pin passes through the first slot hole (15) and the second slot hole (16) in sequence and is clamped on the inner wall of the top of the bracket (1).

7. The electric vehicle reducer device with simple installation according to claim 6, characterized in that: The positioning pin comprises a plug-in column (17), two clamping blocks (18) are arranged at intervals on the circumferential outer wall of the lower end of the plug-in column (17), an abutting block (19) is fixedly connected to the upper end of the plug-in column (17), and a screwing block (20) is fixedly connected to the top of the abutting block (19), the shapes of the first slot hole (15) and the second slot hole (16) match the outer contour of the lower end of the positioning pin, when the rocker (14) is in a locked state, the plug-in column (17) is sequentially inserted into the first slot hole (15) and the second slot hole (16), the two clamping blocks (18) are both clamped on the top inner wall of the bracket (1), and the abutting block (19) is pressed against the top of the rocker (14).

8. The electric vehicle reducer device with simple installation according to claim 7, characterized in that: Slide grooves (21) are provided at both ends of the fixed block (11), and slide rails (22) are fixedly connected to the vertical inner walls on both sides of the bracket (1), and the two slide rails (22) are movably connected to the corresponding slide grooves (21) respectively.

9. The electric vehicle reducer device with simple installation according to claim 8, characterized in that: The limiting member comprises a connecting column (23), the lower end of the connecting column (23) being fixedly connected to the reducer body (3), the upper end of the connecting column (23) being fixedly connected to a limiting block (24), and semicircular grooves (25) are respectively provided on the inner side walls of the two fixing blocks (11) at corresponding positions, and in a working state, the circumferential outer walls of the connecting column (23) are respectively pressed into the two semicircular grooves (25), and the bottom of the limiting block (24) is pressed against the tops of the two fixing blocks (11).

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