Rapid testing device for motor speed reducer

Abstract

The invention relates to the field of automobile motor speed reducers, and discloses a motor speed reducer rapid testing device which comprises a deformation supporting seat, a mounting frame, a driving part, a traction belt, a telescopic suspension mechanism, an abutting mechanism, a guiding mechanism and a limiting mechanism. The mounting frame and the driving part are both assembled on the deformation supporting seat, and the telescopic suspension mechanism is arranged on the mounting frame and is connected with the driving part through a traction belt; the abutting mechanism is arranged on the telescopic suspension mechanism and communicates with the deformation supporting base so that liquid in the deformation supporting base can enter the abutting mechanism to clamp the speed reducer. The guiding mechanism is arranged on the upper abutting mechanism so as to guide the abutting mechanism during horizontal moving-out. According to the invention, the deformation supporting seat can adapt to limited space and is convenient to adapt to different spaces, so that when the automobile motor reducer is moved out, the guide mechanism detects and buffers a barrier, the limiting mechanism cooperates with the barrier, emergency braking is carried out during collision, the test convenience and safety are improved, and the device is suitable for narrow space.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive motor reducer testing, and more specifically, it relates to a rapid testing device for motor reducers. Background Art

[0002] The motor reducer of an electric vehicle is a device that realizes torque and speed conversion through mechanical transmission and other means. Its working principle is mainly based on mechanical gear transmission. The motor reducer plays a crucial role in the power transmission process of an electric vehicle. It converts the high-speed, low-torque output of the motor into a low-speed, high-torque output suitable for wheel drive. However, after the electric vehicle has been running for a long time, the bearings inside the motor reducer may wear due to friction, resulting in abnormal vibration or noise during operation, and even affecting the transmission accuracy. The gears will wear due to meshing friction during long-term use, and the tooth profile may change, leading to a decrease in transmission efficiency, an increase in noise, and even faults such as gear jamming. The shaft components may also deform due to uneven force or overload, affecting the smoothness and accuracy of transmission. Therefore, through disassembly testing, the wear degree of these components can be checked, and damaged components can be repaired or replaced in time to avoid further damage to other components.

[0003] Some motor reducers are located at the front of the vehicle. When the existing method is used to remove and test the motor reducer of an electric vehicle, usually the installation and accommodation space of the electric vehicle and the location of the equipment are limited, which is not conducive to using large equipment to remove the reducer, increasing the inconvenience of testing. Summary of the Invention

[0004] The present invention provides a rapid testing device for motor reducers, which solves the technical problem in the related art that the space and location at the front of the electric vehicle are limited, making it difficult to use large equipment to remove the transmission, and increasing the operational inconvenience.

[0005] The present invention provides a rapid testing device for motor reducers, including a deformable support base, a mounting frame, a driving member, a traction belt, a telescopic suspension mechanism, a pressing mechanism, a guiding mechanism, and a limiting mechanism; The mounting frame and the driving member are both assembled on the deformable support base. The telescopic suspension mechanism is arranged on the mounting frame and is connected to the driving member through the traction belt; The pressing mechanism is arranged on the telescopic suspension mechanism and is communicated with the deformable support base to clamp the reducer when liquid enters the deformable support base; The guiding mechanism is arranged on the upper pressing mechanism to guide the pressing mechanism during horizontal removal, buffer and alarm when touching an obstacle, and brake the telescopic suspension mechanism through the limiting mechanism.

[0006] As a further optimized solution of the present invention, the deformable support seat includes a first base, a second base, a moving plate, a driver and a linear actuator. Cavities are formed inside both the first base and the second base. The second base slides into the first base. The moving plate is slidably sleeved inside the second base. The driver is installed on the second base, and the driving end of the driver is fixedly connected to the moving plate. The linear actuator changes the relative positions of the first base and the second base. The linear actuator includes a hydraulic cylinder installed on the first base, and the driving end of the hydraulic cylinder is connected to the second base through a connecting block.

[0007] As a further optimized solution of the present invention, right-angle rods are slidably sleeved at both corners of the second base, and balls are provided at the bottoms of the right-angle rods.

[0008] As a further optimized solution of the present invention, the driving member includes a driving motor, a mounting block and a rotating rod. The mounting blocks are symmetrically installed on the first base and are rotatably connected to the rotating rod. One end of the outer circumference of the rotating rod is fixedly connected to one end of a traction belt. A wire pulley is provided on the mounting frame, and the traction belt bypasses the wire pulley. The driving motor is installed on the mounting block, and transmission gears that are mutually driven are fixedly sleeved on both the rotating rod and the driving shaft of the driving motor.

[0009] As a further optimized solution of the present invention, the telescopic suspension mechanism includes a guide plate, a sleeve, a moving rod and a suspension rod. The guide plate is slidably sleeved on the mounting frame. One end of the sleeve is fixedly connected to the guide plate, and the sleeve is fixedly connected to the traction belt. One end of the moving rod slides into the sleeve, and the other end is connected to the pressing mechanism through the suspension rod.

[0010] As a further optimized solution of the present invention, the pressing mechanism includes an annular pipe, a sleeve and a pressing rod. The annular pipe is installed on the suspension rod and is communicated with the second base through a liquid supply pipe. A valve is provided on the liquid supply pipe. The sleeve is installed on the inner circumference of the annular pipe and is communicated with the annular pipe. One end of the pressing rod slides into the sleeve, and the other end presses against the reducer.

[0011] As a further optimized solution of the present invention, the guiding mechanism includes a fixed rod and a deflecting rod. One end of the fixed rod is fixedly connected to the outer circumference of the annular pipe, and the other end is rotatably connected to the deflecting rod through a hinge. An alarm member is provided on the fixed rod.

[0012] As a further optimized solution of the present invention, the alarm member includes a pulling alarm installed on the fixed rod, and the pulling alarm includes a pulling rope connected to the deflecting rod.

[0013] As a further optimized solution of the present invention, the limiting mechanism includes a pulling rope, a linkage rope, a pull rod, a guiding member and a pressing member. The guiding member is arranged on the suspension rod and the ring tube. The pulling rope is slidably connected with the guiding member. The pulling rope is connected with the deflection rod through the linkage rope. The pull rod is slidably arranged inside the moving rod. One end of the pull rod is fixedly connected with the pulling rope, and the other end is connected with the pressing member.

[0014] As a further optimized solution of the present invention, the pressing member includes a pressing block, an acting block, a spring, a guiding rod and a moving block. A guiding groove is formed at the insertion end of the moving rod. The guiding rod is installed inside the guiding groove. The moving block is slidably sleeved on the guiding rod and is fixedly connected with the pressing block. The inner wall of the guiding groove is connected with the moving block through the spring. The moving block is fixedly connected with the pull rod. The contact surfaces of the acting block and the pressing block are both inclined.

[0015] The beneficial effects of the present invention are as follows: 1. For the rapid testing device of the motor reducer of the present invention, the deformation support base can flexibly adjust the shape and support structure, and can work under the condition that the installation accommodation space and position of the electric vehicle motor reducer are limited, solving the problem of difficult removal of the transmission with large equipment, improving the convenience of testing, and being applicable to complex testing environments.

[0016] 2. For the rapid testing device of the motor reducer of the present invention, during the process of removing the reducer, the guiding mechanism plays a crucial role. Since the installation position of the transmission is usually limited, it is easy to collide with surrounding devices and cause damage during removal. Through the guiding mechanism, detection is carried out in front of the moving reducer. When it touches the existing obstacles, it can not only sense in time, but also buffer through its own structure to reduce the impact force of the collision, thereby effectively reducing the risk of collision damage to surrounding devices and ensuring that the entire removal process is safer and more reliable.

[0017] 3. For the rapid testing device of the motor reducer of the present invention, by setting the limiting mechanism to work in coordination with the guiding mechanism, during the movement of the electric vehicle motor reducer, once the guiding mechanism triggers corresponding actions due to collision, the limiting mechanism will immediately respond and perform emergency braking, avoiding further displacement and damage caused by collision, effectively preventing possible safety accidents, and providing reliable safety guarantee for the entire removal operation. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a rapid testing device for a motor reducer proposed by the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the driving member in a rapid testing device for a motor reducer proposed by the present invention.

[0020] Figure 3 Schematic structural diagram of the annular pipe in a rapid testing device for a motor reducer proposed by the present invention.

[0021] Figure 4 Schematic internal structural diagram of the first base and the second base in a rapid testing device for a motor reducer proposed by the present invention.

[0022] Figure 5 Schematic cross-sectional structural diagram of the sleeve in a rapid testing device for a motor reducer proposed by the present invention.

[0023] Figure 6 For Figure 5 The enlarged structural diagram at position A in

[0024] Figure 7 Schematic structural diagram of the right-angle rod in a rapid testing device for a motor reducer proposed by the present invention.

[0025] Figure 8 Schematic bottom view structure diagram of the first base and the second base in a rapid testing device for a motor reducer proposed by the present invention.

[0026] In the figure: 1. Deformable support base; 101. First base; 102. Second base; 103. Moving plate; 104. Driver; 105. Hydraulic cylinder; 106. Connecting block; 107. Right-angle rod; 108. Ball. 2. Mounting frame; 3. Driving member; 31. Driving motor; 32. Mounting block; 33. Rotating rod; 34. Wire guide wheel; 35. Transmission gear. 4. Traction belt; 5. Telescopic suspension mechanism; 51. Guide plate; 52. Sleeve; 53. Moving rod; 531. Guide groove; 54. Suspension rod. 6. Pressing mechanism; 61. Annular pipe; 62. Sleeve; 63. Pressing rod; 64. Liquid supply pipe; 65. Valve. 7. Guiding mechanism; 71. Fixed rod; 72. Deflecting rod; 73. Hinge; 74. Pulling alarm; 741. Pulling rope. 8. Limiting mechanism; 81. Pulling rope; 82. Linking rope; 83. Pulling rod; 84. Guide member; 85. Pressing block; 86. Acting block; 87. Spring; 88. Guide rod; 89. Moving block. Specific implementation manner

[0027] Reference will now be made to example embodiments to discuss the subject matter described herein. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein, and the functions and arrangements of the elements discussed can be changed without departing from the scope of protection of the content of this specification. Each example can omit, substitute, or add various processes or components as needed. In addition, the features described in some examples can also be combined in other examples.

[0028] As Figure 1 shown, a rapid testing device for a motor reducer according to an embodiment of the present invention is characterized by comprising a deformable support base 1, a mounting frame 2, a driving member 3, a traction belt 4, a telescopic suspension mechanism 5, a pressing mechanism 6, a guiding mechanism 7, and a limiting mechanism 8; It further includes a test bench for testing the reducer; The mounting frame 2 and the driving member 3 are both assembled on the deformable support base 1. The telescopic suspension mechanism 5 is arranged on the mounting frame 2 and is connected to the driving member 3 through the traction belt 4; The pressing mechanism 6 is arranged on the telescopic suspension mechanism 5 and is communicated with the deformable support base 1 to clamp the reducer when the liquid in the deformable support base 1 enters; The guiding mechanism 7 is arranged on the upper pressing mechanism 6 to guide the pressing mechanism 6 when it moves horizontally outwards, buffer and give an alarm when touching an obstacle, and act on the telescopic suspension mechanism 5 through the limiting mechanism 8 to brake.

[0029] It should be noted that in order to adapt to the spatial position of the front of an electric vehicle, the deformable support base 1 serves as the basic framework of the entire device, providing an installation and support platform for other components. The mounting frame 2 is fixed on the deformable support base 1, and the driving member 3 generates power to wind the traction belt 4. The traction belt 4 transmits the power of the driving member 3 to the telescopic suspension mechanism 5, driving it to move on the mounting frame 2. The telescopic suspension mechanism 5 can adjust its position, thereby driving the pressing mechanism 6 to move to a suitable position. The pressing mechanism 6 is communicated with the deformable support base 1. When the liquid in the deformable support base 1 flows into the pressing mechanism 6, the pressing mechanism 6 realizes the clamping of the reducer. The guiding mechanism 7 is installed on the pressing mechanism 6. When the pressing mechanism 6 moves horizontally outwards, it guides its movement direction through its own structure. When encountering an obstacle, the guiding mechanism 7 can buffer the collision force and trigger an alarm. At the same time, the guiding mechanism 7 is connected to the telescopic suspension mechanism 5 through the limiting mechanism 8, triggering the limiting mechanism 8 to brake the telescopic suspension mechanism 5 to prevent the device from continuing to move and causing damage.

[0030] As Figure 2 , Figure 4 , Figure 7 and Figure 8As shown in the figure, the deformable support base 1 includes a first base 101, a second base 102, a moving plate 103, a driver 104 and a linear actuator. The driver 104 is a hydraulic cylinder or a pneumatic cylinder. Cavities are formed inside both the first base 101 and the second base 102. A drain valve is connected to the bottom of the second base 102. The second base 102 contains a liquid inside, and the liquid is water, which can increase the stability of the support. At the same time, it can be discharged when carrying, increasing the convenience of movement. The second base 102 slides into the inside of the first base 101. The moving plate 103 is slidably sleeved inside the second base 102. The driver 104 is installed on the second base 102, and the driving end of the driver 104 is fixedly connected to the moving plate 103. The linear actuator changes the relative positions of the first base 101 and the second base 102. The linear actuator includes a hydraulic cylinder 105 installed on the first base 101, and the driving end of the hydraulic cylinder 105 is connected to the second base 102 through a connecting block 106.

[0031] Furthermore, right-angle rods 107 are slidably sleeved at both corners of the second base 102. A ball 108 is provided at the bottom of the right-angle rod 107. Rollers are provided at the bottoms of both the first base 101 and the second base 102.

[0032] It should be noted that the second base 102 can slide inside the first base 101. This structure can adjust the overall length and support range of the deformable support base 1. The moving plate 103 slides inside the second base 102. The driver 104 is installed on the second base 102, and its driving end is fixedly connected to the moving plate 103. When the driver 104 works, it can push the moving plate 103 to move inside the second base 102 to squeeze the liquid, and then act on the pressing mechanism 6. The hydraulic cylinder 105 is installed on the first base 101, and its driving end is connected to the second base 102 through a connecting block 106. When the hydraulic cylinder 105 works, it pushes the second base 102 to slide inside the first base 101.

[0033] With such a structure, the deformable support base 1 can flexibly adjust its own shape and support structure according to different test environments, enhancing the adaptability of the device and improving the convenience of testing.

[0034] The right-angle rods 107 are slidably sleeved at both corners of the second base 102. The balls 108 at their bottoms play a role of rolling friction when the second base 102 moves. When the second base 102 slides inside the first base 101, the balls 108 are in rolling contact with the contact surface. Compared with sliding friction, the friction force is greatly reduced. At the same time, the right-angle rods 107 can also play an auxiliary supporting role for the second base 102.

[0035] Such as Figure 2As shown in the figure, the driving member 3 includes a driving motor 31, a mounting block 32 and a rotating rod 33. The mounting blocks 32 are symmetrically mounted on the first base 101 and are rotatably connected to the rotating rod 33. One end of the outer circumference of the rotating rod 33 is fixedly connected to the traction belt 4. A wire wheel 34 is provided on the mounting frame 2. The traction belt 4 bypasses the wire wheel 34. The driving motor 31 is mounted on the mounting block 32. Transmission gears 35 that are mutually engaged are fixedly sleeved on both the rotating rod 33 and the driving shaft of the driving motor 31.

[0036] It should be noted that the driving motor 31 is mounted on the mounting block 32. When the driving motor 31 is started, its driving shaft drives the transmission gear 35 fixedly sleeved on the shaft to rotate. The transmission gear 35 is also fixedly sleeved on the rotating rod 33. The two transmission gears 35 are meshed with each other, so as to transmit the power of the driving motor 31 to the rotating rod 33, causing the rotating rod 33 to rotate. One end of the outer circumference of the rotating rod 33 is fixedly connected to the traction belt 4. When the rotating rod 33 rotates, it can wind or release the traction belt 4. The wire wheel 34 on the mounting frame 2 changes the movement direction of the traction belt 4, so that the traction belt 4 can drive the telescopic suspension mechanism 5 to move along a predetermined path.

[0037] As Figure 2 , Figure 5 and Figure 6 shown in the figure, the telescopic suspension mechanism 5 includes a guide plate 51, a sleeve 52, a moving rod 53 and a suspension rod 54. The guide plate 51 is slidably sleeved on the mounting frame 2. One end of the sleeve 52 is fixedly connected to the guide plate 51. The sleeve 52 is fixedly connected to the traction belt 4. One end of the moving rod 53 slides into the inside of the sleeve 52, and the other end is connected to the pressing mechanism 6 through the suspension rod 54.

[0038] It should be noted that the guide plate 51 is slidably sleeved on the mounting frame 2, which plays a guiding role in the movement of the telescopic suspension mechanism 5, ensuring that it moves along the height direction of the mounting frame 2 and avoiding deviation. One end of the sleeve 52 is fixedly connected to the guide plate 51 and is also fixedly connected to the traction belt 4. When the traction belt 4 moves, it drives the sleeve 52 to move. One end of the moving rod 53 slides in the sleeve 52, so that the moving rod 53 moves within a horizontal range. The other end is connected to the pressing mechanism 6 through the suspension rod 54, thereby driving the pressing mechanism 6 to move and realizing the adjustment of the position of the pressing mechanism 6.

[0039] As Figure 2 and Figure 3 shown in the figure, the pressing mechanism 6 includes an annular pipe 61, a sleeve 62 and a pressing rod 63. The annular pipe 61 is mounted on the suspension rod 54 and is communicated with the second base 102 through a liquid supply pipe 64. A valve 65 is provided on the liquid supply pipe 64. The sleeve 62 is mounted on the inner circumference of the annular pipe 61 and is communicated with the annular pipe 61. One end of the pressing rod 63 slides into the inside of the sleeve 62, and the other end presses against the reducer.

[0040] It should be noted that the annular pipe 61 is installed on the suspension rod 54 and is connected to the second base 102 through the liquid supply pipe 64. When it is necessary to clamp the reducer, the valve 65 is opened, and the liquid in the second base 102 flows into the annular pipe 61 through the liquid supply pipe 64 under the action of pressure. The pressure in the annular pipe 61 increases, pushing the pressing rod 63 in the sleeve 62 communicated with it to extend. One end of the extended pressing rod 63 presses against the reducer, realizing the clamping of the reducer.

[0041] As Figure 3 shown, the guiding mechanism 7 includes a fixed rod 71 and a deflecting rod 72. One end of the fixed rod 71 is fixedly connected to the outer periphery of the annular pipe 61, and the other end is rotatably connected to the deflecting rod 72 through a hinge 73. An alarm component is provided on the fixed rod 71.

[0042] Furthermore, the alarm component includes a pulling alarm 74 installed on the fixed rod 71, and the pulling alarm 74 includes a pulling rope 741 connected to the deflecting rod 72.

[0043] One end of the fixed rod 71 is fixedly connected to the outer periphery of the annular pipe 61, and the other end is rotatably connected to the deflecting rod 72 through a hinge 73. When the pressing mechanism 6 moves horizontally, the guiding mechanism 7 moves accordingly. During the movement, since the width of the movement path is not clear, if an obstacle is encountered, the deflecting rod 72 will be deflected by the acting force of the obstacle, and the alarm component on the fixed rod 71 will be triggered when the deflecting rod 72 deflects, emitting an alarm signal. At the same time, the deflection of the deflecting rod 72 will also act on the telescopic suspension mechanism 5 through the limiting mechanism 8 to achieve braking.

[0044] The guiding mechanism 7 can issue an alarm in time when encountering an obstacle, reminding the operator to stop the operation of the device, avoiding the collision and damage between the device and the obstacle, and improving the safety of the device.

[0045] The pulling alarm 74 is installed on the fixed rod 71. One end of the pulling rope 741 is connected to the deflecting rod 72, and the other end is connected to the pulling alarm 74. When the deflecting rod 72 deflects due to touching an obstacle, it will pull the pulling rope 741, and the pulling of the pulling rope 741 triggers the pulling alarm 74 to emit an alarm sound or signal, realizing the alarm function through mechanical connection.

[0046] The alarm function is realized by using a simple mechanical structure, with low cost and high reliability. It can notify the operator of the abnormal situation of the device in the first time, effectively protecting the device and the testing equipment.

[0047] As Figure 3 、 Figure 5 and Figure 6As shown, the limiting mechanism 8 includes a pulling rope 81, a linkage rope 82, a pull rod 83, a guiding member 84 and a pressing member. The guiding member 84 is arranged on the suspension rod 54 and the annular pipe 61. The suspension rod 54 is composed of a T-shaped rod and a rod body. The pulling rope 81 is slidably connected to the guiding member 84. The pulling rope 81 is connected to the deflecting rod 72 through the linkage rope 82. The pull rod 83 is slidably arranged inside the moving rod 53. One end of the pull rod 83 is fixedly connected to the pulling rope 81, and the other end is connected to the pressing member.

[0048] It should be noted that the guiding member 84 is a sphere or a wire wheel. The guiding member 84 is arranged on the suspension rod 54 and the annular pipe 61 to provide a guiding direction for the pulling rope 81 and ensure the accurate movement direction of the pulling rope 81. The pulling rope 81 is connected to the deflecting rod 72 through the linkage rope 82. When the deflecting rod 72 deflects, it pulls the linkage rope 82, and then pulls the pulling rope 81. The pull rod 83 is slidably arranged inside the moving rod 53. One end is fixedly connected to the pulling rope 81, and the other end is connected to the pressing member. When the pulling rope 81 is pulled, it drives the pull rod 83 to slide inside the moving rod 53. The movement of the pull rod 83 causes the pressing member to exert a braking effect on the moving rod 53, thereby preventing the telescopic suspension mechanism 5 from continuing to move.

[0049] The limiting mechanism 8 is closely matched with the guiding mechanism 7 to realize the braking of the telescopic suspension mechanism 5 simultaneously when the alarm is triggered, further improving the safety and reliability of the device, and effectively avoiding damage caused by the device continuing to move when encountering an obstacle.

[0050] Specifically, the pressing member includes a pressing block 85, an acting block 86, a spring 87, a guiding rod 88 and a moving block 89. A guiding groove 531 is formed at the inserted end of the moving rod 53. The guiding rod 88 is installed inside the guiding groove 531. The moving block 89 is slidably sleeved on the guiding rod 88 and is fixedly connected to the pressing block 85. The inner wall of the guiding groove 531 is connected to the moving block 89 through the spring 87. The moving block 89 is fixedly connected to the pull rod 83. The contact surfaces of the acting block 86 and the pressing block 85 are both inclined.

[0051] The guiding rod 88 is installed in the guiding groove 531 at the inserted end of the moving rod 53. The moving block 89 is slidably sleeved on the guiding rod 88 to ensure that the moving block 89 can only move along the direction of the guiding rod 88. The moving block 89 is fixedly connected to the pressing block 85. The spring 87 connects the inner wall of the guiding groove 531 and the moving block 89 to play a reset role. When the pull rod 83 moves, it drives the moving block 89. The moving block 89 slides on the guiding rod 88 and compresses the spring 87. The contact surfaces of the acting block 86 and the pressing block 85 are inclined, and the pressing block 85 presses against the inner top wall of the sleeve 52 for braking.

[0052] After braking, the pull rod 83 cannot continue to move within the sleeve 52, so that the annular pipe 61 cannot move horizontally. At this time, by pressing the pull rod 83, the pressing block 85 can be disengaged from contacting the inner top wall of the sleeve 52, and then the entire device can be adjusted in position by rolling the wheels.

[0053] This test device can also be used to test the speed reducer on wind power generation equipment. The speed reducer of wind power generation equipment is usually installed inside the tower barrel or in the narrow space of the nacelle. It is difficult for traditional large equipment to directly operate. Through the sliding structure of the base one 101 and the base two 102 of the deformable support seat, the overall length of this device can be flexibly adjusted to adapt to different heights of the tower barrel or the limited space in the nacelle. By pushing the base two 102 to slide within the base one 101 through the hydraulic cylinder 105, the lateral dimension of the device can be shortened, facilitating passage through the maintenance channel of the tower barrel. The right-angle rod 107 and the ball 108 at the corner of the base two 102 can reduce the moving friction, facilitating the translation or turning of the device in the nacelle and avoiding collision with components such as cables and pipelines. The position of the wind power speed reducer is relatively high (such as the top of the nacelle). It is necessary to drive the traction belt 4 through the driving member 3 to pull the telescopic suspension mechanism 5 to rise vertically, so that the pressing mechanism 6 is aligned with the speed reducer. The moving rod 53 slides within the sleeve 52, and the horizontal position can be finely adjusted to ensure that the pressing mechanism 6 fits the outer shell of the speed reducer.

[0054] Start the driver 104 to push the moving plate 103, squeeze the liquid inside the base two 102, and the liquid flows into the annular pipe 61 through the liquid supply pipe 64, pushing the push rod 63 inside the sleeve 62 to extend, and tightly clamping the speed reducer circumferentially to achieve stable clamping.

[0055] Obstacle detection: The nacelle is filled with equipment such as gearboxes, generators, and heat dissipation devices. When the speed reducer is removed, it is easy to collide with surrounding components. The fixed rod 71 and the deflecting rod 72 (connected by a hinge) of the guiding mechanism 7 are installed at the front end of the pressing mechanism 6. When horizontally moving and touching an obstacle (such as a generator bracket), the deflecting rod 72 is deflected by the force, pulling the pulling rope 741 to trigger the alarm 74, prompting the operator to stop moving.

[0056] Emergency braking of the limiting mechanism: The deflection of the deflecting rod 72 pulls the pull rope 81 through the linkage rope 82, driving the sliding of the pull rod 83 inside the moving rod 53, making the pressing block 85 tightly press against the inner wall of the sleeve 52, instantly braking the telescopic suspension mechanism 5, and avoiding damage to the equipment due to hard collision.

[0057] Removal and testing: After the braking is released, the speed reducer is translated to the test platform outside the nacelle through the rollers at the bottom of the device. The test contents include gear wear detection, bearing vibration analysis, transmission efficiency test, etc.

[0058] The working principle of testing the electric vehicle motor speed reducer: Adjustment Preparation: Meanwhile, start the hydraulic cylinder 105. Its driving end pushes the second base 102 to slide within the first base 101 through the connecting block 106, adjusting the overall length and support range of the deformation support base 1 to adapt to different test environments. The ball 108 at the bottom of the right-angle rod 107 can reduce the friction when the second base 102 moves. The rollers at the bottoms of the first base 101 and the second base 102 facilitate the movement of the entire device. Start the driver 104, whose driving end pushes the moving plate 103 to slide within the second base 102, squeezing the liquid inside the second base 102 to provide clamping power reserve for the pressing mechanism 6.

[0059] Driving and Positioning: Start the driving motor 31. Its driving shaft drives the transmission gear 35 to rotate, which meshes with the transmission gear 35 on the rotating rod 33, causing the rotating rod 33 to rotate. When the rotating rod 33 rotates, it winds or unwinds the traction belt 4. The traction belt 4 changes the direction of motion by passing around the wire pulley 34, driving the telescopic suspension mechanism 5 to move. The guide plate 51 of the telescopic suspension mechanism 5 slides on the mounting frame 2 to ensure no deviation during movement in the height direction. The sleeve 52 moves with the traction belt 4. Move the moving rod 53, and the moving rod 53 slides within the sleeve 52, driving the pressing mechanism 6 to move to the position of the reducer through the suspension rod 54.

[0060] Reducer Clamping: Open the valve 65. The liquid inside the second base 102 flows into the annular pipe 61 through the liquid supply pipe 64 under pressure. The pressure inside the annular pipe 61 increases, pushing the push rod 63 inside the sleeve 62 to extend. The extending end of the push rod 63 presses against the reducer to achieve clamping of the reducer.

[0061] Testing and Protection: Move the suspension rod 54. The pressing mechanism 6 drives the reducer to horizontally move out of the device, and the guiding mechanism 7 moves accordingly. If encountering an obstacle, the deflecting rod 72 deflects under the blocking force, pulling the pulling rope 741 to trigger the pulling alarm 74 to emit an alarm. At the same time, the deflecting rod 72 pulls the pulling rope 81 through the linkage rope 82. The pulling rope 81 slides under the guidance of the guiding member 84, driving the pull rod 83 to slide within the moving rod 53. The pull rod 83 drives the acting block 86 to move, acting on the pressing block 85. The moving block 89 slides on the guiding rod 88 and compresses the spring 87, causing the pressing block 85 to press against the top wall inside the sleeve 52, braking the moving rod 53 and preventing the telescopic suspension mechanism 5 from continuing to move, protecting the reducer and the devices near the reducer installation equipment. After braking, the pull rod 83 can be pressed to release the contact between the pressing block 85 and the top wall inside the sleeve 52, and the position can be adjusted through the roller moving device. After removing the reducer, place it on the test bench for testing.

[0062] The embodiments of the present invention have been described above. However, these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of these embodiments, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of these embodiments.

Claims

1. A rapid testing device for a motor reducer, characterized in that, It includes a deformable support base (1), a mounting frame (2), a driving member (3), a traction belt (4), a telescopic suspension mechanism (5), a pressing mechanism (6), a guiding mechanism (7) and a limiting mechanism (8); The mounting frame (2) and the driving member (3) are both assembled on the deformable support base (1). The telescopic suspension mechanism (5) is arranged on the mounting frame (2) and is connected to the driving member (3) through the traction belt (4); The pressing mechanism (6) is arranged on the telescopic suspension mechanism (5) and is communicated with the deformable support base (1) to clamp the reducer when the liquid in the deformable support base (1) enters; The guiding mechanism (7) is arranged on the upper pressing mechanism (6) to guide the pressing mechanism (6) when moving horizontally outwards, buffer and alarm when touching an obstacle, and brake the telescopic suspension mechanism (5) through the limiting mechanism (8).

2. The rapid testing device for a motor reducer according to claim 1, wherein: The deformable support base (1) includes a first base (101), a second base (102), a moving plate (103), a driver (104) and a linear actuator. Cavities are formed inside both the first base (101) and the second base (102). The second base (102) slides into the inside of the first base (101). The moving plate (103) is slidably sleeved inside the second base (102). The driver (104) is installed on the second base (102), and the driving end of the driver (104) is fixedly connected to the moving plate (103). The linear actuator changes the relative positions of the first base (101) and the second base (102). The linear actuator includes a hydraulic cylinder (105) installed on the first base (101). The driving end of the hydraulic cylinder (105) is connected to the second base (102) through a connecting block (106).

3. The rapid testing device for a motor reducer according to claim 2, wherein: Right-angle rods (107) are slidably sleeved at both corners of the second base (102), and balls (108) are provided at the bottoms of the right-angle rods (107).

4. The rapid testing device for an electric motor reducer according to claim 3, characterized in that: The driving member (3) includes a driving motor (31), a mounting block (32) and a rotating rod (33). The mounting blocks (32) are symmetrically installed on the first base (101) and are rotatably connected to the rotating rod (33). The outer circumference of the rotating rod (33) is fixedly connected to one end of the traction belt (4). A wire pulley (34) is provided on the mounting frame (2). The traction belt (4) bypasses the wire pulley (34). The driving motor (31) is installed on the mounting block (32). Transmission gears (35) that are mutually driven are fixedly sleeved on both the rotating rod (33) and the driving shaft of the driving motor (31).

5. A rapid testing device for an electric motor reducer according to any one of claims 1-3, characterized in that: The telescopic suspension mechanism (5) includes a guiding plate (51), a sleeve (52), a moving rod (53) and a suspension rod (54). The guiding plate (51) is slidably sleeved on the mounting frame (2). One end of the sleeve (52) is fixedly connected to the guiding plate (51). The sleeve (52) is fixedly connected to the traction belt (4). One end of the moving rod (53) slides into the inside of the sleeve (52), and the other end is connected to the pressing mechanism (6) through the suspension rod (54).

6. The rapid test device for a motor reducer according to claim 5, wherein: The pressing mechanism (6) includes an annular pipe (61), a sleeve (62) and a pressing rod (63). The annular pipe (61) is installed on the suspension rod (54) and is communicated with the second base (102) through a liquid supply pipe (64). A valve (65) is provided on the liquid supply pipe (64). The sleeve (62) is installed at the inner circumference of the annular pipe (61) and is communicated with the annular pipe (61). One end of the pressing rod (63) slides into the inside of the sleeve (62), and the other end presses against the reducer.

7. The rapid test device for a motor reducer according to claim 6, characterized in that: The guiding mechanism (7) includes a fixed rod (71) and a deflecting rod (72). One end of the fixed rod (71) is fixedly connected to the outer circumference of the annular pipe (61), and the other end is rotatably connected to the deflecting rod (72) through a hinge (73). An alarm member is provided on the fixed rod (71).

8. A rapid testing device for a motor reducer according to claim 7, characterized in that: The alarm member includes a pulling alarm (74) installed on the fixed rod (71). The pulling alarm (74) includes a pulling rope (741) connected to the deflecting rod (72).

9. A rapid testing device for a motor reducer according to claim 8, characterized in that: The limiting mechanism (8) includes a pulling rope (81), a linkage rope (82), a pull rod (83), a guiding member (84) and a pressing member. The guiding member (84) is arranged on the suspension rod (54) and the annular pipe (61). The pulling rope (81) is slidably connected to the guiding member (84). The pulling rope (81) is connected to the deflecting rod (72) through the linkage rope (82). The pull rod (83) is slidably arranged inside the moving rod (53). One end of the pull rod (83) is fixedly connected to the pulling rope (81), and the other end is connected to the pressing member.

10. The rapid testing device for a motor reducer according to claim 9, wherein: The pressing member includes a pressing block (85), an acting block (86), a spring (87), a guiding rod (88) and a moving block (89). A guiding groove (531) is formed at the insertion end of the moving rod (53). The guiding rod (88) is installed inside the guiding groove (531). The moving block (89) is slidably sleeved on the guiding rod (88) and is fixedly connected to the pressing block (85). The inner wall of the guiding groove (531) is connected to the moving block (89) through the spring (87). The moving block (89) is fixedly connected to the pull rod (83). The contact surfaces of the acting block (86) and the pressing block (85) are both inclined.

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