Dynamic test equipment for automobile motor performance

Abstract

The invention discloses an automobile motor performance dynamic test device, which comprises a base, a fixing mechanism, a shaking mechanism, a connecting mechanism and a humidifying mechanism, and is characterized in that the base is fixedly connected with a performance detection device, the base is provided with a chute, the interior of the chute is slidably connected with a scene simulation box, and the fixing mechanism is used for mounting and testing a motor to be tested; the shaking mechanism is used for shaking the fixing mechanism and simulating the stable performance condition of the motor under the shaking condition, and the connecting mechanism is used for transmitting rotation data of the output end of the motor in the shaking process to the input end of the performance detection equipment. The automobile motor performance dynamic testing device solves the problems that when an existing automobile motor performance dynamic testing device is used, it is difficult to detect the performance of a motor in the shaking process, and the service life is affected by equipment shaking. And people can use conveniently.

Description

[0001] This application is a divisional application of the application filed on November 04, 2024, with the application number 2024115568073 and the invention title "An Automotive Motor Performance Dynamic Testing Device". Technical Field

[0002] The present invention relates to the technical field of motor performance testing, and specifically to a device for dynamically testing the performance of automotive motors. Background Art

[0003] With the increasing popularity of new energy vehicles, the usage environment of new energy vehicles is becoming increasingly complex. Automobiles will operate in harsh environments such as high temperature, high humidity, and high cold. The performance of the motor in this environment directly affects the safety, power performance, and economy of the whole vehicle. For example, the problem of abnormal noise of the motor at low temperature directly affects the user's satisfaction; the problem of demagnetization of the motor at high temperature will cause the vehicle's power performance to deteriorate; the insulation problem of the motor under high humidity conditions will directly affect the driving safety of the vehicle. Therefore, each new energy vehicle OEM and supplier invests a large amount of resources in motor environmental tests.

[0004] The rotational speed of motors used in new energy vehicles generally exceeds 10,000 rpm, and the torque is above 200 Nm. The high-speed and high-dynamic operating conditions pose higher requirements on the environmental test system. It is necessary to provide environmental conditions for the motor and ensure high alignment accuracy of the motor. Therefore, it is inevitable to develop a fast environmental test system for automotive motors with high alignment accuracy, fast replacement speed, good sealing performance, and taking into account the environmental adaptability of bearings.

[0005] Some of the existing automotive motor performance dynamic testing devices can detect the working performance of the motor in harsh environments such as high temperature, high humidity, and high cold. However, on some bumpy roads, frequent jitters will also affect the performance of the motor. Especially for some low-end vehicles with poor shock absorption effects, the long-term jitter of the motor will reduce the service life of the motor. There are few existing test devices in this regard, and some jitter test devices need to jitter the detection equipment together, which will greatly affect the service life of the equipment in the long run. For this reason, we propose a device for dynamically testing the performance of automotive motors. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for dynamically testing the performance of automotive motors that is convenient for testing the performance of the motor during jitter, so as to solve the problems raised in the above background art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for dynamic testing of automobile motor performance, comprising a base, a fixing mechanism, a shaking mechanism, a connecting mechanism and a humidifying mechanism, wherein a performance detection device is fixedly connected to the base, a mounting frame is fixedly connected to the base, a slide groove is provided on the base, a scene simulation box is slidably connected in the slide groove, the fixing mechanism is installed on the base, and is used to install and test the motor to be tested, the shaking mechanism is installed on the base, and is used to shake the fixing mechanism to simulate the performance stability of the motor under shaking, and the connecting mechanism is installed on the performance detection equipment, and is used to transmit the rotation data of the motor output end during the shaking process to the performance detection device. The input end of the detection device is installed in the scene simulation box, and is used to perform humidification simulation on the scene simulation box when the shaking mechanism is running. The device is convenient for testing the performance of the motor during shaking by setting a shaking mechanism and a connecting mechanism. At the same time, the output end of the shaking motor can be stably transmitted to the input end of a performance detection device fixed on the base. The device is convenient for continuously triggering the operation of the humidification mechanism by using the amplitude of the shaking when the shaking mechanism is working by setting a humidification mechanism, so that the humidification mechanism can continuously humidify the motor to detect the performance of the motor under high humidity conditions. The operation of the device is simple and quick, which improves the detection efficiency, makes the detection more comprehensive, and is convenient for people to use.

[0008] Preferably, the fixing mechanism includes two first side plates fixedly mounted on the base, the first side plates are fixedly connected to a first spring, the first spring is fixedly connected to a rocking block slidably connected to the base, the top of the rocking block is fixedly connected to a second spring, the second spring is fixedly connected to a mounting plate, the two sides of the rocking block are fixedly connected to second side plates slidably connected to the mounting plate, the mounting plate is slidably connected to a sliding block, and the sliding block is provided with a limiting member for limiting the position of the sliding block, so as to facilitate fixing the motor with test on the equipment for testing.

[0009] Preferably, the connecting mechanism includes a first gear column fixedly connected to the output end of the motor to be tested, the first gear column is plugged with a first disc, the first disc is provided with a first gear groove, the base is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a first ring, and the first ring is provided with a transmission part for transmission, so as to facilitate the stable transmission of the output end power of the motor during the shaking process to the input end of the performance detection equipment fixed on the base.

[0010] Preferably, the transmission member includes a plurality of third springs fixedly installed on the inner wall of the first ring and fixedly connected thereto. The plurality of third springs are fixedly connected to a second ring. The inner wall of the second ring is rotatably connected to a second disc. A second gear groove is formed in the second disc. The input end of the performance detection device is fixedly connected to a first gear, and the second disc is coaxially fixedly connected to a second gear.

[0011] Preferably, the jitter mechanism includes a motor mount fixedly installed in the scene simulation box. A motor is fixedly installed on the motor mount. The output end of the motor is fixedly connected to a second gear column. An internal gear tube inserted with the second gear column is rotatably connected to the mounting frame. A plurality of cams are fixedly connected to the internal gear tube. The shaking block is provided with a first inclined surface and a second inclined surface, which are convenient for driving the motor to jitter in the horizontal and vertical directions.

[0012] Preferably, the limiting member includes a stopper fixedly installed on the sliding block. A fourth spring is fixedly connected to the stopper. The fourth spring is fixedly connected to a plug block slidably connected to the stopper. A plurality of helical tooth grooves inserted with the plug block are formed on the mounting plate, which is convenient for fixing the motor.

[0013] Preferably, the humidifying mechanism includes two water tanks fixedly installed in the scene simulation box. A plurality of atomizing nozzles are provided on the two water tanks. A one-way valve for adding water to the water tank and having a one-way air intake function is threadedly connected to the scene simulation box. A humidifying member for driving the atomizing nozzles to spray water when the mounting plate shakes is provided in the scene simulation box, which is convenient for simulating a high-humidity environment in the scene simulation box.

[0014] Preferably, the humidifying member includes a fifth spring fixedly installed in the scene simulation box. A push plate is fixedly connected to the fifth spring. A water spraying button is provided on the water tank. Third inclined surfaces slidably connected to the water spraying button are formed at both ends of the push plate, which is convenient for driving the atomizing nozzles to spray water mist by the shaking of the mounting plate.

[0015] Preferably, the first disc, the second disc, the first gear and the second gear are all made of high-strength impact-resistant alloy material, which is more durable and prolongs the service life of the equipment.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention solves the problems that it is difficult to detect the performance of an automotive motor during the jitter process when using an existing dynamic test device for automotive motor performance, and the jitter of the device affects its service life. The device is provided with a jitter mechanism and a connection mechanism, which facilitate the testing of the performance of the motor during the jitter process. At the same time, the rotating output end of the jittering motor can be stably transmitted to the input end of a performance detection device fixed on the base. The device is provided with a humidifying mechanism, which conveniently triggers the operation of the humidifying mechanism continuously by using the amplitude of the jitter when the jitter mechanism is working, so that the humidifying mechanism can continuously humidify the motor to detect the performance of the motor under high humidity conditions. The device is simple and fast to operate, improves the detection efficiency, makes the detection more comprehensive, and is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the present invention; Figure 3 is a schematic diagram of a partial structure of the connection mechanism of the present invention; Figure 4 is Figure 3 an enlarged view of area A in Figure 5 is a schematic diagram of a partial structure of the humidifying mechanism of the present invention; Figure 6 is Figure 5 an enlarged view of area B in Figure 7 is Figure 5 an enlarged view of area C in Figure 8 is a schematic diagram of a partial structure of the jitter mechanism of the present invention; Figure 9 is a schematic diagram of a partial structure of the fixing mechanism of the present invention; Figure 10 is Figure 9 an enlarged view of area D in

[0018] In the figure: 1-base; 2-performance testing equipment; 3-mounting frame; 4-slide; 5-scene simulation box; 6-fixing mechanism; 7-shaking mechanism; 8-connecting mechanism; 9-humidifying mechanism; 10-first side plate; 11-first spring; 12-shaking block; 13-second spring; 14-mounting plate; 15-second side plate; 16-sliding block; 17-limiting member; 18-first gear column; 19-first disc; 20-first gear slot; 21-fixing frame; 22-first ring; 23-third spring; 24-second ring ;25-second disc;26-second gear groove;27-first gear;28-second gear;29-motor frame;30-motor;31-second gear column;32-inner gear tube;33-cam;34-first inclined plane;35-second inclined plane;36-stop block;37-fourth spring;38-plug-in block;39-oblique tooth groove;40-water tank;41-atomizing nozzle;42-one-way valve;43-humidifying element;44-fifth spring;45-push plate;46-water spray button;47-third inclined plane;48-transmission element. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example 1 See also Figures 1 - 4 The figure shows a dynamic test device for automobile motor performance, including a base 1, a fixing mechanism 6, a shaking mechanism 7, a connecting mechanism 8 and a humidifying mechanism 9. A performance detection device 2 is fixedly connected to the base 1, a mounting frame 3 is fixedly connected to the base 1, a slide 4 is provided on the base 1, and a scene simulation box 5 is slidably connected in the slide 4. The fixing mechanism 6 is installed on the base 1 for installing and testing the motor to be tested. The shaking mechanism 7 is installed on the base 1 for shaking the fixing mechanism 6 to simulate the performance stability of the motor under shaking. The connecting mechanism 8 is installed on the performance detection device 2 for transmitting the rotation data of the motor output end during the shaking process to the input end of the performance detection device 2. The humidifying mechanism 9 is installed in the scene simulation box 5 for linking the humidification simulation in the scene simulation box 5 when the shaking mechanism 7 is running.

[0021] See also Figures 5 - 10, the fixing mechanism 6 in the figure includes two first side plates 10 fixedly installed on the base 1. A first spring 11 is fixedly connected to the first side plate 10. The first spring 11 is fixedly connected to a swaying block 12 slidably connected to the base 1. The top of the swaying block 12 is fixedly connected to a second spring 13. The second spring 13 is fixedly connected to a mounting plate 14. Both sides of the swaying block 12 are fixedly connected to second side plates 15 slidably connected to the mounting plate 14. A sliding block 16 is slidably connected to the mounting plate 14. A limiting member 17 for limiting the position of the sliding block 16 is provided on the sliding block 16.

[0022] Please refer to Figures 3 - 7 , the connecting mechanism 8 in the figure includes a first gear column 18 fixedly connected to the output end of the motor to be tested. The first gear column 18 is inserted into a first disc 19. A first gear groove 20 is formed in the first disc 19. A fixing frame 21 is fixedly connected to the base 1. A first ring 22 is fixedly connected to the fixing frame 21. A transmission member 48 for transmission is provided on the first ring 22.

[0023] Please refer to Figures 3 - 7 , the transmission member 48 in the figure includes multiple groups of third springs 23 fixedly installed and fixedly connected to the inner wall of the first ring 22. The multiple groups of third springs 23 are fixedly connected to a second ring 24. The inner wall of the second ring 24 is rotatably connected to a second disc 25. A second gear groove 26 is formed in the second disc 25. The input end of the performance detection device 2 is fixedly connected to a first gear 27. The second disc 25 is coaxially and fixedly connected to a second gear 28. The first disc 19, the second disc 25, the first gear 27, and the second gear 28 are all made of high-strength impact-resistant alloy material.

[0024] In this embodiment, slide open the scene simulation box 5, place the motor to be tested on the mounting plate 14, slide the sliding block 16 to clamp the motor, fix the sliding block 16 by the limiter 17, so that the first gear column 18 at the output end of the motor is plugged and fixed with the first disc 19, close the scene simulation box 5, start the motor, and start the shaking mechanism 7 at the same time. The shaking mechanism 7 drives the shaking block 12 to shake left and right and drives the mounting plate 14 to shake up and down, so that the motor shakes up and down. At this time, the motor drives the first disc 19 to rotate. The first disc 19 drives the first gear slot 20 to rotate. The outer diameter of the second gear 28 is slightly smaller than the inner diameter of the first gear slot 20, so that the first gear slot 20 can continuously drive the second gear 28 to rotate. At the same time, the first disc 19 can shake to a certain extent, and the second gear 28 will always be rotated by the first gear slot 20. At the same time, The second gear 28 drives the second disc 25 to rotate. While the second disc 25 can rotate, it can also swing to a certain extent under the action of the second ring 24 and the third spring 23. The rotation of the second disc 25 drives the second gear slot 26 and the first gear 27 to rotate. The outer diameter of the first gear 27 is slightly smaller than the inner diameter of the second gear slot 26, so that the second gear slot 26 can continuously drive the first gear 27 to rotate while the second disc 25 can swing to a certain extent. In this way, the motor can stably transmit the rotation of the output end to the input end of the performance testing device 2 while constantly shaking. At the same time, the performance testing device 2 will not shake, avoiding the long-term shaking of the performance testing device 2 affecting its service life. At the same time, the mounting plate 14 will drive the humidification mechanism 9 to continuously spray water mist into the scene simulation box 5 while shaking, thereby jointly simulating a high humidity environment.

[0025] Example 2 See also Figures 5 - 10 Example 2 is described. This example further illustrates Example 1. The shaking mechanism 7 shown in the figure includes a motor frame 29 fixedly installed in the scene simulation box 5. A motor 30 is fixedly installed on the motor frame 29. The output end of the motor 30 is fixedly connected to a second gear column 31. An internal gear tube 32 that is rotatably connected to the second gear column 31 is connected to the mounting frame 3. Multiple groups of cams 33 are fixedly connected to the internal gear tube 32. A first inclined surface 34 and a second inclined surface 35 are provided on the shaking block 12.

[0026] See also Figures 9 - 10 The limiting member 17 shown in the figure includes a stopper 36 fixedly mounted on the sliding block 16, a fourth spring 37 fixedly connected to the stopper 36, the fourth spring 37 fixedly connected to a plug-in block 38 slidably connected to the stopper 36, and a plurality of groups of beveled tooth grooves 39 plugged into the plug-in block 38 are provided on the mounting plate 14.

[0027] In this embodiment, the model of the motor 30 is preferably YYHS-40. When the scene simulation box 5 is pulling the switch, the second gear column 31 is always plugged into the inner gear tube 32, ensuring that the transmission between the motor 30 and the inner gear tube 32 will not be disconnected. When the motor 30 is started, the motor 30 drives the second gear column 31 to rotate, thereby driving the inner gear tube 32 to rotate, which can drive the cam 33 to rotate. When the cam 33 hits the bottom surface of the mounting plate 14, it pushes the mounting plate 14 upward, the second spring 13 is stretched, and the cam 33 continues to rotate and hits the first inclined surface 34 to push the shaking block 12 moves to compress the first spring 11 on that side, and then the cam 33 rotates and hits the second inclined surface 35 to push the shaking block 12 to move to the other side to compress the first spring 11 on that side. Thereafter, the cam 33 continues to hit the bottom surface of the mounting plate 14. This reciprocating process can realize the horizontal and vertical shaking of the motor. The plug-in block 38 is pushed upward to compress the fourth spring 37 to release the plug-in block 38 from the oblique tooth groove 39, and the sliding block 16 can be slid to release the fixation of the motor. A fixing ring (not shown) is provided on the sliding block 16 for clamping the upper and lower ends of the motor to prevent the motor from shaking upward when it shakes.

[0028] Example 3 See also Figures 1 - 4 , the figure includes a base 1, a fixing mechanism 6, a shaking mechanism 7, a connecting mechanism 8 and a humidifying mechanism 9. The base 1 is fixedly connected to a performance detection device 2, the base 1 is fixedly connected to a mounting frame 3, the base 1 is provided with a slide 4, and the slide 4 is slidably connected to a scene simulation box 5. The fixing mechanism 6 is installed on the base 1 for installing and testing the motor to be tested. The shaking mechanism 7 is installed on the base 1 for shaking the fixing mechanism 6 to simulate the performance stability of the motor under shaking. The connecting mechanism 8 is installed on the performance detection device 2 for transmitting the rotation data of the motor output end during the shaking process to the input end of the performance detection device 2. The humidifying mechanism 9 is installed in the scene simulation box 5 for linking the humidification simulation in the scene simulation box 5 when the shaking mechanism 7 is running.

[0029] See also Figures 5 - 7 Example 3 is described. This example further explains Example 1. The humidifying mechanism 9 shown in the figure includes two water tanks 40 fixedly installed in the scene simulation box 5. The two water tanks 40 are provided with multiple groups of atomizing nozzles 41. The scene simulation box 5 is threaded with a one-way valve 42 for adding water to the water tank 40 and having a one-way air intake function. The scene simulation box 5 is provided with a humidifying component 43 for linking the atomizing nozzle 41 to spray water when the mounting plate 14 shakes.

[0030] See also Figures 5 - 7, in the illustrated humidifying member 43 includes a fifth spring 44 fixedly installed in the scene simulation box 5, a push plate 45 is fixedly connected to the fifth spring 44, a water spraying button 46 is provided on the water tank 40, and third inclined surfaces 47 slidably connected to the water spraying button 46 are formed at both ends of the push plate 45.

[0031] In this embodiment, slide the scene simulation box 5 to one side of the mounting frame 3 to form a relatively sealed environment. Start the motor 30 to drive the mounting plate 14 to shake. The mounting plate 14 will continuously push the push plate 45 to move up and down. When the push plate 45 moves up to compress the fifth spring 44, the third inclined surface 47 will push the water spraying button 46 to spray the water in the water tank 40 from the atomizing nozzle 41. At this time, the one-way valve 42 can only let air in and not out to ensure the air pressure balance inside the water tank 40. Opening the one-way valve 42 can add water to the water tank 40. This device does not require other motors to drive. Only during the process of starting the motor 30 to drive the motor to shake, the force of the motor shaking is used to continuously trigger the water spraying button 46, saving energy.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive motor performance dynamic testing device, characterized in that, Comprising: A base (1), on which a performance detection device (2) is fixedly connected, an installation frame (3) is fixedly connected to the base (1), a chute (4) is formed on the base (1), and a scene simulation box (5) is slidably connected in the chute (4); Also comprising: A fixing mechanism (6), the fixing mechanism (6) includes a shaking block (12) slidably connected to the base (1) in the horizontal direction, a second spring (13) is fixedly connected to the top of the shaking block (12), and the upper end of the second spring (13) is fixedly connected to a mounting plate (14) for fixing motors of different sizes to be tested on the mounting plate (14) for dynamic testing; A shaking mechanism (7), the shaking mechanism (7) includes a plurality of cams (33) mounted on the base (1) for impacting and shaking the shaking block (12) through the cams (33), so that the motor to be tested shakes in multiple directions to simulate the performance stability of the motor under shaking conditions; A connecting mechanism (8), the connecting mechanism (8) is mounted on the performance detection device (2) for transmitting the rotational data of the motor output end during the shaking process to the input end of the performance detection device (2); Humidifying mechanism (9), the humidifying mechanism (9) includes two water tanks (40) fixedly installed in the scene simulation box (5), which are used to drive the water tanks (40) to spray water in parallel when the shaking mechanism (7) operates, so as to humidify and simulate the inside of the scene simulation box (5). The connecting mechanism (8) includes a first gear column (18) fixedly connected to the output end of the motor to be tested. The first gear column (18) is inserted with a first disc (19). A first gear groove (20) is opened on the first disc (19). A fixed frame (21) is fixedly connected to the base (1). A first ring (22) is fixedly connected to the fixed frame (21). A transmission member (48) for dynamic transmission is provided on the first ring (22). The transmission member (48) includes multiple groups of third springs (23) fixedly installed on the inner wall of the first ring (22). Multiple groups of the third springs (23) are fixedly connected to a second ring (24). The inner wall of the second ring (24) is rotatably connected to a second disc (25). A second gear groove (26) is opened in the second disc (25). The input end of the performance detection device (2) is fixedly connected to a first gear (27). The second disc (25) is coaxially fixedly connected to a second gear (28). The shaking mechanism (7) includes a motor frame (29) fixedly installed in the scene simulation box (5). A motor (30) is fixedly installed on the motor frame (29). The output end of the motor (30) is fixedly connected to a second gear column (31). An internal gear tube (32) inserted with the second gear column (31) is rotatably connected to the mounting frame (3). Multiple groups of the cams (33) are all fixedly installed on the internal gear tube (32). The shaking block (12) is provided with a first inclined surface (34) and a second inclined surface (35); The first disc (19), the second disc (25), the first gear (27) and the second gear (28) are all made of alloy material.

2. The dynamic test device for the performance of an automotive motor according to claim 1, characterized in that: The fixing mechanism (6) further includes two first side plates (10) fixedly installed on the base (1). A first spring (11) is fixedly connected to the first side plate (10). One end of the first spring (11) is fixedly connected to the shaking block (12). Second side plates (15) slidably connected to the mounting plate (14) are fixedly connected to both sides of the shaking block (12). A sliding block (16) is slidably connected to the mounting plate (14) in the horizontal direction. A limiting member (17) for limiting is provided on the sliding block (16).

3. The dynamic test device for automotive motor performance according to claim 2, characterized in that: The limiting member (17) includes a stop block (36) fixedly installed on the sliding block (16). A fourth spring (37) is fixedly connected to the stop block (36). The fourth spring (37) is fixedly connected to a plug-in block (38) slidably connected to the stop block (36). Multiple groups of helical tooth grooves (39) inserted with the plug-in block (38) are opened on the mounting plate (14).

4. A dynamic test device for automotive motor performance according to claim 1, characterized in that: The humidifying mechanism (9) includes multiple groups of atomizing nozzles (41) respectively installed on the two sides of the water tank (40). A one-way valve (42) for adding water to the water tank (40) and having a one-way air intake function is threadedly connected to the scenario simulation box (5). A humidifying member (43) is provided in the scenario simulation box (5) for driving the atomizing nozzles (41) to spray water when the mounting plate (14) shakes.

5. The dynamic test device for automotive motor performance according to claim 4, wherein: The humidifying member (43) includes a fifth spring (44) fixedly installed in the scenario simulation box (5). A push plate (45) is fixedly connected to the fifth spring (44). A water spraying button (46) is provided on the water tank (40). Third inclined surfaces (47) slidably connected to the water spraying button (46) are formed at both ends of the push plate (45).

6. The dynamic testing device for automotive motor performance according to claim 1, characterized in that: The first disc (19), the second disc (25), the first gear (27) and the second gear (28) are all made of high-strength impact-resistant alloy material.

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