Vehicle-mounted motor testing device

Abstract

The invention discloses a vehicle-mounted motor testing device, and relates to the technical field of motor testing devices.The vehicle-mounted motor testing device comprises a supporting base, a testing motor and a motor dynamometer, the supporting base is internally provided with a connecting shaft assembly used for installing a coupler in a matched mode for an output shaft of the motor, and through use of a cleaning assembly, a push rod will extrude a spring tube; air in the bourdon tube is sprayed to the output shaft of the test motor from the jet head, dust, water and the like on the outer side of the output shaft of the test motor are blown away along with movement of the test motor, meanwhile, the air is sprayed to the surface of the test key block through the jet head, and dust accumulated on the two sides of the test key block is blown away. The effect of cleaning the output shaft of the test motor and the test key block through wind power is achieved, dust accumulated when the test key block and the output shaft of the test motor are not used for a long time is removed, and the situation that vibration and even eccentric falling are caused by untight attachment when the test key block and the output shaft of the test motor are connected due to dust is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of motor testing devices, and in particular to a vehicle-mounted motor testing device. Background Art

[0002] The motor test device is a tool used to evaluate the performance and quality of the motor. The importance of the motor test device lies in its ability to comprehensively evaluate and test the performance of the motor. By using this device, it can be ensured that the quality of the motor meets the standards and meets the expected performance requirements. In addition, it also helps to identify and solve possible problems with the motor, thereby improving the reliability and durability of the motor. It ensures that the quality and performance of the motor meet the expected standards through precise testing and analysis. The on-board motor is a device that converts and transmits electrical energy. It is mainly used as a power source for electric vehicles. It realizes the conversion or transmission of electrical energy to mechanical energy through the law of electromagnetic induction. Its main function is to generate driving torque.

[0003] When the motor testing device tests the vehicle-mounted motor, the motor's output shaft is mainly connected to the dynamometer's shaft through a coupling. The motor is energized and the dynamometer obtains data such as the motor's torque and speed through the motor's output shaft. However, the output shafts of different vehicle-mounted motors are of different sizes, and the coupling model must match the motor's output shaft before it can be used. Therefore, when rotating different motors for testing, it is necessary to match the shaft converter and tighten the screws, which is very troublesome.

[0004] When installing the shaft mount, it is necessary to ensure that the motor's output shaft and latch are clean. If there is dust or other foreign matter, it is easy to cause inaccurate connection between the shaft mount and the output shaft. During the test process, it is easy to cause the shaft mount and the output shaft to not fit tightly, causing vibration or even eccentricity and falling off. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a vehicle-mounted motor testing device, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vehicle-mounted motor testing device, used to facilitate the testing of vehicle-mounted motors, including a support base, a test motor and a motor dynamometer, a coupling assembly for matching the output shaft of the motor with an installation coupling is arranged inside the support base, a cleaning assembly is arranged inside the support base, and a protection assembly is arranged inside the support base.

[0009] Furthermore, the coupling assembly includes a hydraulic rod fixedly connected to the inside of the support base, the top of the hydraulic rod is fixedly connected to a support plate, the top of the support plate is rotatably connected to a slide rail, the top of the slide rail is slidably connected to a mounting block, an electric telescopic rod is fixedly connected to the inside of the slide rail, the electric telescopic rod is fixedly connected to the mounting block, a steering motor is fixedly connected to the inside of the support base, the output shaft of the steering motor passes through the support plate and is fixedly connected to the slide rail, and the test motor is mounted on the top of the mounting block by bolts.

[0010] Furthermore, a rotating circle is rotatably connected to the top of the support base, a rotating armrest is fixedly connected to the outside of the rotating circle, a fixed block is fixedly connected to the top of the rotating circle, an arc-shaped fixing plate is rotatably connected to the top of the fixed block, a coupling block is slidably connected to the top of the arc-shaped fixing plate, a clamping spring is fixedly connected to the outside of the arc-shaped fixing plate, the clamping spring is fixedly connected to the fixed block, a fastening screw is threadedly connected to the top of the coupling block, a motor keyway is opened inside the coupling block, and a test key block is fixedly connected to the outside of the coupling block.

[0011] Furthermore, twelve coupling blocks are provided, and the motor keyways inside the twelve coupling blocks have different sizes.

[0012] Furthermore, a support block is fixedly connected to the outer side of the support base, a force-bearing rod is slidably connected to the inner side of the support block, a connecting rod is rotatably connected to the outer side of the force-bearing rod, a bidirectional motor is rotatably connected to the bottom of the connecting rod, a slide cylinder is slidably connected to the outer side of the bidirectional motor, and the slide cylinder is fixedly connected to the inner side of the support block.

[0013] Furthermore, the output shaft of the bidirectional motor is fixedly connected to a rotating cylinder, a buffer spring is fixedly connected inside the rotating cylinder, a screwdriver is slidably connected inside the rotating cylinder, and the screwdriver is rotatably connected to the buffer spring.

[0014] Furthermore, the cleaning assembly includes a spring tube fixedly connected to the outside of the support block, a conduit is fixedly connected to one end of the spring tube close to the support block, the conduit is fixedly connected to the inside of the support block, a nozzle is installed at the bottom of the conduit, an air duct is installed on the outside of the conduit, and the air duct is connected to the conduit.

[0015] Furthermore, the protection component includes a push rod fixedly connected to the outside of the mounting block, a fixed ring fixedly connected inside the push rod, a protective ring slidably connected inside the fixed ring, a fold line rod rotatably connected to the outside of the protective ring, a return spring fixedly connected to the outside of the fold line rod, the return spring is fixedly connected to the fixed ring, a roller is rotatably connected to the outside of the fixed ring, and the fold line rod is symmetrically arranged with the protective ring as the center of symmetry.

[0016] (III) Beneficial effects

[0017] The vehicle-mounted motor testing device provided by the present invention has the following beneficial effects:

[0018] 1. The present invention uses a coupling assembly to select a shaft of the same size as the output shaft of the test motor from the motor keyways inside the twelve coupling blocks, and the electric telescopic rod is extended to push the output shaft of the test motor to insert into the motor keyway. At the same time, the screwdriver rotates to rotate the fastening screw to squeeze and fix the output shaft of the test motor, so that the coupling block is installed on the outside of the output shaft of the test motor, thereby achieving the effect of facilitating the selection of matching couplings for test motors with different output shaft sizes and installation. When the output shaft of the test motor and the coupling hole of the motor dynamometer are of different sizes, the coupling block acts as a coupling to dock the output shaft of the test motor with the coupling hole of the motor dynamometer, which is convenient for the motor dynamometer to detect the speed, torque and other performance of the test motor. Compared with the existing installation by manual docking and tightening of screws by inspection personnel, the twelve coupling blocks are arranged in a ring shape, which is convenient for users to rotate and select, and automatically dock and tighten the fastening screws to install the coupling blocks, saving the time of manual docking and tightening of fastening screws by inspection personnel and speeding up the installation process.

[0019] 2. Through the use of a cleaning component, the push rod of the present invention squeezes the spring tube, so that the air inside the spring tube is sprayed from the nozzle to the output shaft of the test motor. As the test motor moves, dust and moisture on the outside of the output shaft of the test motor are blown away. At the same time, the nozzle is sprayed to the surface of the test key block to blow away the accumulated dust on both sides of the test key block, thereby achieving the effect of wind cleaning the output shaft and the test key block of the test motor, removing dust accumulated on the test key block and the output shaft of the test motor when not used for a long time, and avoiding the situation that dust easily causes the test key block and the output shaft of the test motor to be not tightly fitted when connected, causing vibration or even eccentric falling off.

[0020] 3. The present invention uses a protection component. The mounting block drives the push rod to move. The broken line rod is squeezed by the motor dynamometer and rotates. The broken line rod pulls the protection ring to move. The protection ring and the fixed ring wrap the output shaft of the test motor, the coupling block, the test key block and the coupling hole of the motor dynamometer. The protection cover composed of the fixed ring and the protection ring does not affect the output shaft transmission of the test motor, and blocks external dust and debris from affecting the output shaft transmission of the test motor, thereby achieving the effect of automatically protecting the output shaft rotation test of the test motor. When the test motor and the motor dynamometer are connected, the connection is automatically covered. When separated, the protection ring is automatically retracted into the fixed ring, which prevents the test personnel from accidentally touching the output shaft of the test motor and avoids the protection ring from affecting the operation of the device before and after the test. Compared with the exposed coupling of the existing motor test device, an automatically extended and retracted protection ring is added to the outer side of the coupling, which avoids the situation where the high-speed coupling block falls off and flies out to injure people due to loose connection between the coupling block and the output shaft of the test motor or the test key block and the coupling hole of the motor dynamometer, thereby ensuring the safety of the test personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of part of the structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the coupling assembly of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the coupling block structure of the present invention;

[0025] Figure 5 It is a schematic cross-sectional view of the support block structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the cleaning component structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the screwdriver of the present invention;

[0028] Figure 8 This is a test schematic diagram of a test motor of the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of the protection component of the present invention;

[0030] Fig.10 It is a schematic diagram of the protection ring structure of the present invention.

[0031] The numbers in the figure represent:

[0032] 1. Support base; 2. Test motor; 3. Motor dynamometer;

[0033] The coupling assembly includes: 41, hydraulic rod; 42, support plate; 43, slide rail; 44, mounting block; 45, electric telescopic rod; 46, steering motor; 47, rotating circle; 48, rotating handrail; 49, fixing block; 410, arc fixing plate; 411, coupling block; 412, clamping spring; 413, fastening screw; 414, motor keyway; 415, test key block; 416, support block; 417, force rod; 418, connecting rod; 419, bidirectional motor; 420, slide cylinder; 421, rotating cylinder; 422, buffer spring; 423, screwdriver;

[0034] The cleaning assembly includes: 51, a spring tube; 52, a guide tube; 53, a jet head; 54, an air guide tube;

[0035] The protection assembly includes: 61, a push rod; 62, a fixing ring; 63, a protection ring; 64, a folding rod; 65, a return spring; 66, a roller. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] refer to Figures 1 to 10 A vehicle-mounted motor testing device according to a preferred embodiment of the present invention will be described in detail below.

[0038] A vehicle-mounted motor testing device is used to facilitate testing of vehicle-mounted motors, including a support base 1, a test motor 2 and a motor dynamometer 3. The test motor 2 is connected to an external power supply to facilitate starting the test. A coupling hole is provided on the outside of the motor dynamometer 3. A coupling assembly for matching the output shaft of the motor with the coupling is provided inside the support base 1. A cleaning assembly is provided inside the support base 1. A protection assembly is provided inside the support base 1.

[0039] The coupling assembly includes a hydraulic rod 41 fixedly connected to the inside of the support base 1, and the extension and contraction of the hydraulic rod 41 are controlled by an external power supply. A support plate 42 is fixedly connected to the top of the hydraulic rod 41, and a slide rail 43 is rotatably connected to the top of the support plate 42. A mounting block 44 is slidably connected to the top of the slide rail 43, and an electric telescopic rod 45 is fixedly connected to the inside of the slide rail 43. The extension and contraction of the electric telescopic rod 45 are controlled by an external power supply. Four electric telescopic rods 45 are provided, and the electric telescopic rods 45 are fixedly connected to the mounting block 44. A steering motor 46 is fixedly connected to the inside of the support base 1, and the output shaft of the steering motor 46 is fixedly connected to a telescopic column, which is fixedly connected to the slide rail 43. When the slide rail 43 moves upward, the telescopic column extends so that the steering motor 46 is still connected to the slide rail 43. The steering motor 46 is controlled by an external power supply to rotate its output shaft, and the output shaft of the steering motor 46 passes through the support plate 42 and is fixedly connected to the slide rail 43. The test motor 2 is mounted on the top of the mounting block 44 by bolts.

[0040] A rotating ring 47 is rotatably connected to the top of the support base 1, a rotating handrail 48 is fixedly connected to the outer side of the rotating ring 47, a fixed block 49 is fixedly connected to the top of the rotating ring 47, an arc-shaped fixing plate 410 is rotatably connected to the top of the fixing block 49, two symmetrical arc-shaped fixing plates 410 are arranged on the top of the fixing block 49, the arc-shaped fixing plates 410 are processed with an arc on one side close to the test motor 2, a coupling block 411 is slidably connected to the top of the arc-shaped fixing plate 410, when the output shaft of the test motor 2 and the coupling hole of the motor dynamometer 3 are different in size, the coupling block 411 acts as a coupling, and the output shaft of the test motor 2 and the coupling hole of the motor dynamometer 3 are connected to each other, so as to facilitate the motor dynamometer 3 to detect the speed, torque and other performance of the test motor 2, a clamping spring 412 is fixedly connected to the outer side of the arc-shaped fixing plate 410, and the clamping spring 412 is fixedly connected to the outer side of the arc-shaped fixing plate 410, and the clamping spring 412 is fixedly connected to the outer side of the arc-shaped fixing plate 410, and the clamping spring 412 is fixedly connected to the outer side of the arc-shaped fixing plate 410. Figure 4 The coupling block 411 is in a compressed state, the clamping spring 412 is fixedly connected to the fixed block 49, the top of the coupling block 411 is threadedly connected with a fastening screw 413, the top of the fastening screw 413 is provided with a cross hole, the bottom of the fastening screw 413 is fixedly connected with a hard rubber pad, the coupling block 411 is provided with a motor keyway 414, the motor keyway 414 is used to insert the output shaft of the test motor 2, the outer side of the coupling block 411 is fixedly connected with a test key block 415, the test key block 415 is used to be inserted into the coupling hole of the motor dynamometer 3, and the test key block 415 of each coupling block 411 is the same size.

[0041] Twelve coupling blocks 411 are provided, and the motor keyways 414 inside the twelve coupling blocks 411 have different sizes.

[0042] A support block 416 is fixedly connected to the outside of the support base 1, and the support block 416 is C-shaped. A force-bearing rod 417 is slidably connected inside the support block 416. A connecting rod 418 is rotatably connected to the outside of the force-bearing rod 417. A bidirectional motor 419 is rotatably connected to the bottom of the connecting rod 418. The bidirectional motor 419 is controlled by an external power supply to rotate its output shaft. A slide cylinder 420 is slidably connected to the outside of the bidirectional motor 419, and the slide cylinder 420 is fixedly connected to the inside of the support block 416.

[0043] The output shaft of the bidirectional motor 419 is fixedly connected to a rotating cylinder 421, a buffer spring 422 is fixedly connected inside the rotating cylinder 421, a screwdriver 423 is slidably connected inside the rotating cylinder 421, a strip protrusion is fixedly connected to the outside of the screwdriver 423, the strip protrusion is slidably connected to the inside of the rotating cylinder 421, so that the screwdriver 423 can only slide up and down inside the rotating cylinder 421, and the rotating cylinder 421 can drive the screwdriver 423 to rotate, a cross protrusion is provided at the bottom of the screwdriver 423 for installing and disassembling the fastening screw 413, and the screwdriver 423 is rotatably connected to the buffer spring 422.

[0044] The cleaning component includes a spring tube 51 fixedly connected to the outside of the support block 416. The spring tube 51 is made of rubber and is fixedly connected to a spring on the outside so that the spring tube 51 can automatically return to its original state after being compressed. The end of the spring tube 51 close to the support block 416 is fixedly connected to a conduit 52. The conduit 52 is fixedly connected to the inside of the support block 416. A nozzle 53 is installed at the bottom of the conduit 52. The nozzle 53 is detachable for easy replacement. An air guide tube 54 is installed on the outside of the conduit 52. The nozzle 53 is detachable for easy replacement. A nozzle is set at one end of the air guide tube 54 close to the test key block 415. Two air guide tubes 54 are set, and the air guide tubes 54 are connected to the conduit 52.

[0045] The protection component includes a push rod 61 fixedly connected to the outside of the mounting block 44, a fixed ring 62 fixedly connected inside the push rod 61, a protection ring 63 slidably connected inside the fixed ring 62, a folding rod 64 rotatably connected outside the protection ring 63, a rotating wheel is provided at one end of the folding rod 64 away from the protection ring 63, the side of the folding rod 64 away from the push rod 61 is set in an inclined state, a return spring 65 fixedly connected outside the folding rod 64, the return spring 65 is fixedly connected to the fixed ring 62, a roller 66 is rotatably connected outside the fixed ring 62, and the folding rod 64 is symmetrically arranged with the protection ring 63 as the center of symmetry.

[0046] The following is the entire working process and working principle of the above embodiment: the inspector places the test motor 2 on the top of the mounting block 44 through the lifting equipment, and the output shaft of the motor passes through the fixing ring 62, so that one side of the output shaft of the motor is in close contact with the fixing ring 62, and the test motor 2 is installed on the top of the mounting block 44 by bolts. The inspector rotates the rotating armrest 48 by hand, and the rotating armrest 48 drives the rotating ring 47 fixedly connected to it to rotate, and the rotating ring 47 drives the fixed block 49 fixedly connected to it to rotate, and the fixed block 49 drives the arc-shaped fixing plate 410 rotatably connected to it to rotate the coupling block 411. The motor keyways 414 inside the twelve coupling blocks 411 are of different sizes, and the one with the same size as the output shaft of the test motor 2 is selected from the twelve motor keyways 414. , rotate the corresponding coupling block 411 to the left side of the output shaft of the test motor 2, the inspector opens the hydraulic rod 41, controls the extension and contraction of the hydraulic rod 41, so that the output shaft of the test motor 2 and the motor keyway 414 inside the coupling block 411 are at the same height, the inspector opens the electric telescopic rod 45, the electric telescopic rod 45 extends and pushes the mounting block 44 to move in the direction of the fixed block 49, the mounting block 44 drives the test motor 2 to move in the direction of the coupling block 411, and the output shaft of the test motor 2 is inserted into the motor keyway 414, and at the same time the mounting block 44 drives the push rod 61 to move in the direction of the force rod 417, the push rod 61 pushes the force rod 417 to move into the support block 416, and the force rod 417 drives the connecting rod 418 connected to it for rotation to move toward the support block 416 Internal movement, since the bidirectional motor 419 is slidably connected with the slide cylinder 420, the bidirectional motor 419 can only move up and down, and the bottom end of the connecting rod 418 is restricted by the bidirectional motor 419, so that the connecting rod 418 moves downward, and the connecting rod 418 drives the bidirectional motor 419 connected to it for rotation to move downward, and the bidirectional motor 419 drives the rotating cylinder 421 fixedly connected to its output shaft to move downward, and the rotating cylinder 421 drives the screwdriver 423 connected to it for sliding movement downward, and the screwdriver 423 contacts the fastening screw 413 and is squeezed by the fastening screw 413, and the fastening screw 413 moves upward inside the rotating cylinder 421, and the screwdriver 423 squeezes the buffer spring 422 connected to it for rotation to contract, and after the output shaft of the test motor 2 is inserted into the motor keyway 414 The inspector closes the electric telescopic rod 45 and opens the bidirectional motor 419. The output shaft of the bidirectional motor 419 drives the rotating cylinder 421 fixedly connected thereto to rotate. Due to the strip-shaped protrusion on the outer side of the screwdriver 423, the rotating cylinder 421 rotates and drives the screwdriver 423 to rotate. The screwdriver 423 rotates so that its cross protrusion docks with the cross hole provided on the top of the fastening screw 413. The buffer spring 422 stretches and pushes the screwdriver 423 downward so that the screwdriver 423 always sticks to the fastening screw 413. The rotation of the screwdriver 423 drives the fastening screw 413 to rotate. The fastening screw 413 is threadedly connected with the coupling block 411. The fastening screw 413 moves downward to squeeze and fix the output shaft of the test motor 2, so that the coupling block 411 is installed on the outer side of the output shaft of the test motor 2.The effect of conveniently selecting and installing matching couplings for test motors 2 with different output shaft sizes is achieved. When the output shaft of the test motor 2 and the coupling hole of the motor dynamometer 3 are of different sizes, the coupling block 411 acts as a coupling to connect the output shaft of the test motor 2 with the coupling hole of the motor dynamometer 3, which is convenient for the motor dynamometer 3 to detect the speed, torque and other performances of the test motor 2. Compared with the existing installation by manual docking and tightening of screws by inspection personnel, the twelve coupling blocks 411 are arranged in a ring shape, which is convenient for users to rotate and select, and automatically dock and tighten the fastening screws 413 to install the coupling blocks 411, saving the installation time of the inspection personnel for manual docking and tightening of the fastening screws 413, speeding up the installation process, and facilitating the installation of matching coupling blocks 411 for test motors 2 with different output shafts.

[0047] Furthermore, after the coupling block 411 is installed on the output shaft of the test motor 2, the inspector opens the electric telescopic rod 45, the electric telescopic rod 45 contracts and pulls the mounting block 44, and the mounting block 44 drives the test motor 2 to make the coupling block 411 away from the arc-shaped fixing plate 410. Figure 4The coupling block 411 is in a compressed state, and the coupling block 411 is away from the arc-shaped fixing plate 410, so that the clamping spring 412 stretches and pushes the arc-shaped fixing plate 410, so that the two arc-shaped fixing plates 410 are close to each other. The user turns on the steering motor 46, and the output shaft of the steering motor 46 drives the slide rail 43 fixedly connected thereto to rotate, and the slide rail 43 drives the mounting block 44 to rotate the test motor 2. When the test motor 2 rotates half a circle so that the output shaft of the test motor 2 points to the motor dynamometer 3, the inspection personnel controls the steering motor 46 to stop rotating, and the inspection personnel turns on the hydraulic rod 41. The hydraulic rod 41 stretches and drives the support plate 42 to move upward, and the support plate 42 drives the slide rail 43 to move the mounting block 44 upward, and the mounting block 44 drives the test motor 2 to move upward. When the output of the test motor 2 When the coupling block 411 installed on the outside of the output shaft is at the same height as the coupling hole of the motor dynamometer 3, the hydraulic rod 41 is closed, and the inspector opens the electric telescopic rod 45. The electric telescopic rod 45 extends and pushes the mounting block 44 to move. The mounting block 44 drives the test motor 2 to move toward the motor dynamometer 3. The coupling block 411 installed on the outside of the output shaft of the test motor 2 moves toward the coupling hole of the motor dynamometer 3. The test key block 415 fixedly connected to the outside of the coupling block 411 is inserted into the coupling hole of the motor dynamometer 3. The inspector turns on the external power supply of the test motor 2. The output shaft of the test motor 2 rotates, driving the detection element inside the motor dynamometer 3 to rotate, so that the motor dynamometer 3 detects the speed, torque and other data of the test motor 2. At the same time, when the mounting block 44 moves toward the motor dynamometer When the folding rod 64 moves in the direction of the motor dynamometer 3, the mounting block 44 drives the push rod 61 fixedly connected thereto to move in the direction of the motor dynamometer 3, the push rod 61 drives the fixed ring 62 fixedly connected thereto to move in the direction of the motor dynamometer 3, the fixed ring 62 drives the protective ring 63 fixedly connected thereto to make the folded line rod 64 move in the direction of the motor dynamometer 3, the folded line rod 64 is squeezed by the outer side of the motor dynamometer 3, since a rotating wheel is provided at one end of the folded line rod 64 away from the protective ring 63, the folded line rod 64 rotates with the connection between the folded line rod 64 and the protective ring 63 as the rotation center, after the folded line rod 64 contacts the roller 66, since the folded line rod 64 is in an inclined state, the rotating wheel of the folded line rod 64 slides on the outer side of the motor dynamometer 3, the roller 66 rolls on the surface of the folded line rod 64, and the folded line rod 64 approaches the complex One end of the positioning spring 65 pulls the protective ring 63 to move out of the fixed ring 62, and the broken line rod 64 stretches the reset spring 65 fixedly connected thereto, and the protective ring 63 extends from the inside of the fixed ring 62 to contact the outside of the motor dynamometer 3. The protective ring 63 and the fixed ring 62 wrap the output shaft of the test motor 2, the coupling block 411, the test key block 415 and the coupling hole of the motor dynamometer 3. The protective cover composed of the fixed ring 62 and the protective ring 63 does not affect the output shaft transmission of the test motor 2, and at the same time, blocks external dust and debris from affecting the output shaft transmission of the test motor 2, thereby achieving the effect of protecting the output shaft rotation test of the test motor 2. When the test motor 2 is connected to the motor dynamometer 3, the connection between the output shaft of the test motor 2 and the motor dynamometer 3 is automatically covered.When the test motor 2 is separated from the motor dynamometer 3, the protection ring 63 is automatically retracted into the fixed ring 62, which prevents the test personnel from accidentally touching the output shaft of the test motor 2 and avoids the protection ring 63 from affecting the operation of the device before and after the test. Compared with the exposed coupling of the existing motor test device, the protection ring 63 that automatically extends and retracts is added to the outer side of the coupling, which prevents the coupling block 411 from falling off and flying out at high speed and injuring people due to loose connection between the coupling block 411 and the output shaft of the test motor 2 or the test key block 415 and the coupling hole of the motor dynamometer 3, thereby ensuring the safety of the test personnel;

[0048] After the test of the test motor 2 is completed, the inspector controls the electric telescopic rod 45 to retract, so that the test key block 415 is separated from the coupling hole of the motor dynamometer 3, controls the hydraulic rod 41 to retract to make the test motor 2 move downward, and turns on the steering motor 46 so that the steering motor 46 drives the slide rail 43 to rotate half a circle, so that the test motor 2 is reset, and then the electric telescopic rod 45 is opened again. The electric telescopic rod 45 pushes the mounting block 44 to make the output shaft of the test motor 2 move in the direction of the arc-shaped fixing plate 410, and the coupling block 411 on the outer side of the output shaft of the test motor 2 squeezes the arc-shaped fixing plate 410 so that the two arc-shaped fixing plates 410 are opened, and the coupling block 411 is inserted into the arc-shaped fixing plate 410. The plate 410 squeezes the clamping spring 412, and the push rod 61 squeezes the force-bearing rod 417 at the same time. The screwdriver 423 moves downward to contact the fastening screw 413. The inspector controls the bidirectional motor 419 to reverse, so that the screwdriver 423 loosens the fastening screw 413. Since the clamping spring 412 squeezes the arc-shaped fixing plate 410 to clamp the coupling block 411, the inspector controls the test key block 415 to contract to separate the coupling block 411 from the output shaft of the test motor 2, removes the bolts between the test motor 2 and the mounting block 44, and the inspector moves the test motor 2 away through the lifting equipment, thereby achieving the effect of disassembling the coupling block 411, so that the coupling block 411 is reset, which is convenient for the next test motor 2 to be tested.

[0049] Furthermore, when the push rod 61 moves toward the force-bearing rod 417, the push rod 61 will squeeze the spring tube 51, so that the air inside the spring tube 51 is sprayed from the nozzle 53 to the output shaft of the test motor 2 through the duct 52. As the output shaft of the test motor 2 moves toward the coupling block 411, the wind blown out by the nozzle 53 will blow away the dust, moisture, etc. on the outside of the output shaft of the test motor 2. At the same time, the airflow inside the duct 52 enters the two air ducts 54, and is sprayed toward the surface of the test key block 415 through the nozzles of the two air ducts 54, blowing away the accumulated dust on both sides of the test key block 415, thereby achieving the effect of wind cleaning the output shaft of the test motor 2 and the test key block 415, removing the dust accumulated on the test key block 415 and the output shaft of the test motor 2 when they are not used for a long time, and avoiding the situation that dust easily causes the test key block 415 and the output shaft of the test motor 2 to be not tightly connected, causing vibration or even eccentric falling off.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted motor testing device, used to facilitate testing of a vehicle-mounted motor, comprising a support base (1), a test motor (2) and a motor dynamometer (3), characterized in that: A coupling assembly for matching the output shaft of the motor with a coupling is arranged inside the support base (1), a cleaning assembly is arranged inside the support base (1), and a protection assembly is arranged inside the support base (1).

2. A vehicle-mounted motor testing device according to claim 1, characterized in that: The coupling assembly comprises a hydraulic rod (41) fixedly connected to the inside of a support base (1); a support plate (42) is fixedly connected to the top of the hydraulic rod (41); a slide rail (43) is rotatably connected to the top of the support plate (42); a mounting block (44) is slidably connected to the top of the slide rail (43); an electric telescopic rod (45) is fixedly connected to the inside of the slide rail (43); the electric telescopic rod (45) is fixedly connected to the mounting block (44); a steering motor (46) is fixedly connected to the inside of the support base (1); an output shaft of the steering motor (46) passes through the support plate (42) and is fixedly connected to the slide rail (43); and the test motor (2) is mounted on the top of the mounting block (44) by bolts.

3. The vehicle-mounted motor testing device according to claim 1, characterized in that: The top of the support base (1) is rotatably connected to a rotating ring (47), the outer side of the rotating ring (47) is fixedly connected to a rotating armrest (48), the top of the rotating ring (47) is fixedly connected to a fixing block (49), the top of the fixing block (49) is rotatably connected to an arc-shaped fixing sheet (410), the top of the arc-shaped fixing sheet (410) is slidably connected to a coupling block (411), the outer side of the arc-shaped fixing sheet (410) is fixedly connected to a clamping spring (412), the clamping spring (412) is fixedly connected to the fixing block (49), the top of the coupling block (411) is threadedly connected to a fastening screw (413), a motor keyway (414) is provided inside the coupling block (411), and a test key block (415) is fixedly connected to the outer side of the coupling block (411).

4. The vehicle-mounted motor testing device according to claim 3, characterized in that: Twelve coupling blocks (411) are provided, and the motor keyways (414) inside the twelve coupling blocks (411) have different sizes.

5. The vehicle-mounted motor testing device according to claim 1, characterized in that: The support base (1) is fixedly connected to a support block (416) on the outside, the support block (416) is slidably connected to a force-bearing rod (417) on the inside, the force-bearing rod (417) is rotatably connected to a connecting rod (418) on the outside, the connecting rod (418) is rotatably connected to a bidirectional motor (419) at the bottom, the bidirectional motor (419) is slidably connected to a slide cylinder (420) on the outside, and the slide cylinder (420) is fixedly connected to the inside of the support block (416).

6. The vehicle-mounted motor testing device according to claim 5, characterized in that: The output shaft of the bidirectional motor (419) is fixedly connected to a rotating cylinder (421), a buffer spring (422) is fixedly connected inside the rotating cylinder (421), a screwdriver (423) is slidably connected inside the rotating cylinder (421), and the screwdriver (423) is rotatably connected to the buffer spring (422).

7. The vehicle-mounted motor testing device according to claim 4, characterized in that: The cleaning assembly comprises a spring tube (51) fixedly connected to the outside of a support block (416); one end of the spring tube (51) close to the support block (416) is fixedly connected to a conduit (52); the conduit (52) is fixedly connected to the inside of the support block (416); a nozzle (53) is installed at the bottom of the conduit (52); an air guide tube (54) is installed on the outside of the conduit (52); and the air guide tube (54) is connected to the conduit (52).

8. The vehicle-mounted motor testing device according to claim 2, characterized in that: The protection component comprises a push rod (61) fixedly connected to the outside of the mounting block (44); a fixing ring (62) is fixedly connected inside the push rod (61); a protection ring (63) is slidably connected inside the fixing ring (62); a folding rod (64) is rotatably connected to the outside of the protection ring (63); a return spring (65) is fixedly connected to the outside of the folding rod (64); the return spring (65) is fixedly connected to the fixing ring (62); a roller (66) is rotatably connected to the outside of the fixing ring (62); and the folding rod (64) is symmetrically arranged with the protection ring (63) as the symmetry center.

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