Input device of motor test bench

Abstract

The utility model relates to the technical field of motor testing, and provides an input device of a motor testing rack, which comprises a base, an input mechanism, a first movable part and a second movable part. The input mechanism is used for docking with a to-be-tested motor for testing; the first movable part is arranged on the base, the second movable part is arranged on the input mechanism, and the first movable part is movably matched with the second movable part so that the input mechanism can move in the first direction relative to the base. The input device of the motor test bench provided by the utility model is convenient for half shaft butt joint.

Description

Technical Field

[0001] This application relates to the field of motor testing technology, and in particular to an input device for a motor test bench. Background Technology

[0002] In the field of vehicle technology, motor test benches are required to test the motor components of vehicles. During testing, the half-shaft of the motor under test needs to be connected to the docking mechanism of the input device. However, in related technologies, the input device is fixed on the base and cannot be moved, which makes the half-shaft docking quite difficult. Utility Model Content

[0003] In view of this, embodiments of this application aim to provide an input device for a motor test bench to facilitate half-shaft docking.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] This application discloses an input device for a motor test bench, comprising:

[0006] Base;

[0007] Input mechanism, used for docking and testing with the motor under test;

[0008] A first movable part and a second movable part are provided, the first movable part being disposed on the base and the second movable part being disposed on the input mechanism. The first movable part and the second movable part are movably engaged so that the input mechanism can move relative to the base along a first direction.

[0009] In one embodiment, one of the first movable part and the second movable part is a slide rail, and the other of the first movable part and the second movable part is a slider, wherein the slider is in sliding engagement with the slide rail.

[0010] In one embodiment, the input device includes a drive member disposed on the base or the input mechanism, the input mechanism being movable relative to the base along the first direction by means of the cooperation of the first movable part and the second movable part under the drive of the drive member.

[0011] In one embodiment, the input mechanism includes a support plate, a motor, a safety clutch, a spindle box, and a docking mechanism. The support plate has a second movable part on one side surface along the second direction, and the motor and the spindle box are arranged on the opposite side of the support plate along the second direction. The safety clutch is disposed between the motor and the spindle box, and the opposite end of the spindle box is connected to the docking mechanism. The docking mechanism is used to dock with the motor under test, wherein the first direction intersects the second direction.

[0012] In one embodiment, the input mechanism includes a torque sensor connected between the safety clutch and the spindle box.

[0013] In one embodiment, the docking mechanism includes an adapter flange, a diaphragm coupling, a pin, an end cap, and a docking assembly. The adapter flange is connected between the spindle box and the diaphragm coupling. The other end of the diaphragm coupling is connected to the end cap. The pin is disposed between the diaphragm coupling and the end cap. The end cap is connected to one end of the docking assembly, and the other end of the docking assembly is used to dock with the motor under test.

[0014] In one embodiment, the docking assembly includes a connector and a movable member. The docking mechanism includes a buffer spring. The connector is connected to the end cap. The movable member is sleeved on the connector and is movable relative to the connector along a first direction. The movable member is used to dock with the motor under test. The buffer spring is disposed between the connector and the movable member along the first direction. The movable member is movable along the first direction to compress the buffer spring when abutted by the motor under test.

[0015] In one embodiment, the input device includes a sensor switch disposed at the buffer spring. When the moving member is not docked with the motor under test, the buffer spring is compressed, and the sensor switch can control the input mechanism to move away from the motor under test along the first direction. After the buffer spring returns to its shape, the sensor switch can control the input mechanism to move closer to the motor under test along the first direction to re-dock with the motor under test.

[0016] In one embodiment, the connector is an external spline shaft, and the moving part is an internal spline sleeve. The internal spline sleeve is fitted around the outer periphery of the external spline shaft and is used to connect with the motor under test.

[0017] In one embodiment, the inner spline sleeve includes an inner involute spline sleeve and an inner rectangular spline sleeve, which are sleeved on the outer spline shaft along the first direction. The inner involute spline sleeve is used to dock with the motor under test.

[0018] This application discloses an input device for a motor test bench. Through the movable cooperation of the first movable part and the second movable part, the input mechanism can move relative to the base along a first direction to mate with the half-shaft of the motor under test and perform testing. On the one hand, the movable cooperation of the first movable part and the second movable part allows the input mechanism to be finely adjusted on the base, which facilitates centering and alignment with the half-shaft of the motor under test, reduces the difficulty of half-shaft docking, and improves the efficiency of half-shaft docking. On the other hand, it can adapt to motors under test of different sizes, and has good flexibility. Attached Figure Description

[0019] Figure 1 A schematic diagram of the input device for a motor test bench provided in this application;

[0020] Figure 2 This is a cross-sectional schematic diagram of a docking component provided in another embodiment of this application.

[0021] Explanation of reference numerals in the attached figures

[0022] 100. Input device; 1. Base; 2. Input mechanism; 21. Bearing plate; 211. First plate; 212. Second plate; 212a. Connecting block; 22. Motor; 23. Safety clutch; 24. Spindle box; 25. Docking mechanism; 251. Adapter flange; 252. Diaphragm coupling; 253. Ejector pin; 254. End cover; 255. Docking assembly; 2551. Connecting piece; 2551a. External spline shaft; 2552. Moving part; 2552a. Internal spline sleeve; 2552a1. Internal involute spline sleeve; 2552a2. Internal rectangular spline sleeve; 256. Buffer spring; 26. Torque sensor; 3. First moving part; 4. Second moving part; 5. Drive component. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] This application provides an input device 100 for a motor test bench. Please refer to [link to relevant documentation]. Figure 1 and Figure 2The input device 100 of the motor test bench includes a base 1, an input mechanism 2, a first movable part 3, and a second movable part 4. The input mechanism 2 is used for docking and testing with the motor under test (not shown in the figure). The first movable part 3 is disposed on the base 1, and the second movable part 4 is disposed on the input mechanism 2. The first movable part 3 and the second movable part 4 are movably engaged so that the input mechanism 2 can move relative to the base 1 in a first direction.

[0026] For example, the active engagement can be a sliding engagement, a gear and rack meshing, or a worm gear engagement, etc.

[0027] The input device 100 of the motor test bench provided in this application adopts a configuration where a first movable part 3 is mounted on a base 1 and a second movable part 4 is mounted on an input mechanism 2. Through the movable cooperation of the first movable part 3 and the second movable part 4, the input mechanism 2 can move relative to the base 1 along a first direction to align with the half-shaft of the motor under test and perform testing. On the one hand, the movable cooperation of the first movable part 3 and the second movable part 4 allows the input mechanism 2 to be finely adjusted on the base 1, facilitating alignment and centering with the half-shaft of the motor under test, reducing the difficulty of half-shaft docking, and improving the efficiency of half-shaft docking. On the other hand, it can adapt to motors of different sizes under test, offering good flexibility.

[0028] It should be noted that the first direction can be the front-back direction, the second direction can be the up-down direction, and the third direction can be the left-right direction.

[0029] It should be noted that "up" refers to the direction towards the ceiling, and "down" is the opposite of "up." The up-down, front-back, and left-right directions are perpendicular to each other, forming a three-dimensional vertical coordinate system.

[0030] In one exemplary embodiment, Figure 1 In this context, R1 can be the first direction, R2 can be the second direction, and R3 can be the third direction.

[0031] For example, in one embodiment, the number of first movable parts 3 and second movable parts 4 can both be multiple, for example, there can be two. The two first movable parts 3 are arranged at intervals along a third direction on the base 1, and the two second movable parts are correspondingly arranged on the input mechanism 2. In this way, the stability of movement can be improved.

[0032] In one embodiment, one of the first movable part 3 and the second movable part 4 is a slide rail, and the other of the first movable part 3 and the second movable part 4 is a slider, which slides in conjunction with the slide rail.

[0033] For example, the first movable part 3 can be a slider, and the second movable part 4 can be a slide rail. Both the slide rail and the slider can extend along the first direction.

[0034] Here, by setting up a slide rail and a slider, on the one hand, the slide rail can provide a smooth and accurate movement path, while the slider can slide easily within the slide rail, making the entire movement process more precise and controllable; on the other hand, the slide rail can provide additional support and stability, preventing the slider from wobbling or sliding unsteadily during movement, resulting in good movement stability.

[0035] In one embodiment, please refer to Figure 1 The input mechanism 2 includes a support plate 21, a motor 22, a safety clutch 23, a spindle box 24, and a docking mechanism 25. The support plate 21 has a second movable part 4 on one side surface along the second direction. The motor 22 and the spindle box 24 are arranged on the opposite side of the support plate 21 along the second direction. The safety clutch 23 is arranged between the motor 22 and the spindle box 24. The opposite end of the spindle box 24 is connected to the docking mechanism 25. The docking mechanism 25 is used to dock with the motor to be tested. The first direction and the second direction intersect.

[0036] For example, the motor 22 can be mounted on one side of the bearing plate 21 along the first direction by means of screwing or welding, and the safety clutch 23 can be connected between the drive shaft of the motor 22 and the spindle box 24 along the first direction. The other end of the spindle box 24 can be connected to one end of the docking mechanism 25 through a flange. The other end of the docking mechanism 25 can be used to dock with the half shaft of the motor under test.

[0037] During operation, the coordinated movement of the first movable part 3 and the second movable part 4 allows the support plate 21 to move along the first direction until the docking mechanism 25 moves to the position of the motor under test and docks with it. During testing, the motor 22 drives the motor under test by inputting torque and speed.

[0038] The safety clutch 23 is equipped with a spring clamping structure. When the torque of the shaft system reaches the set limit, the spring plate disengages, and then the docking mechanism 25 disconnects from the motor under test. This can prevent damage to components due to excessive torque.

[0039] Thus, by setting a safety clutch 23 between the motor 22 and the spindle box 24, the safety clutch 23 can apply emergency braking and disconnect the connection between the docking mechanism 25 and the motor under test when the motor 22 experiences excessive torque. This reduces the risk of product malfunction due to excessive torque in the input device 100 and the associated safety hazards, resulting in good safety. By placing the second movable part 4 on one side of the support plate 21 along the second direction, and placing the motor 22 and the spindle box 24 on the other side of the support plate 21 along the second direction, structural interference can be reduced, resulting in good operational stability.

[0040] As an example, in one embodiment, please refer to Figure 1The support plate 21 includes a first plate 211 and a second plate 212. The first plate 211 is disposed on one side of the second plate 212 along the second direction and can be connected as a whole by welding or screwing. The projection area of ​​the first plate 211 along the second direction is located within the projection area of ​​the second plate 212. A second movable part 4 is disposed on the other side of the second plate 212 along the second direction. The motor 22 can be disposed on the side of the second plate 212 relative to the second movable part 4. The spindle box 24 can be disposed on the side of the first plate 211 along the second direction relative to the second plate 212.

[0041] In one embodiment, please refer to Figure 1 The input device 100 includes a drive member 5, which is disposed on the base 1 or the input mechanism 2. The input mechanism 2 can move relative to the base 1 in a first direction under the drive of the drive member 5 through the cooperation of the first movable part 3 and the second movable part 4.

[0042] For example, the drive component 5 can be mounted on the base 1, and a connecting block 212a is formed on one side of the second plate 212 along the third direction. The drive shaft of the drive component 5 can be connected to the connecting block 212a. In this way, by setting the drive component 5 to drive the input mechanism 2 to move relative to the base 1 along the first direction, on the one hand, the movement accuracy of the input mechanism 2 can be further improved, and the half-shaft centering and alignment can be better achieved; on the other hand, the drive component 5 can realize automated control, reduce manual intervention, and improve testing efficiency and consistency.

[0043] In one exemplary embodiment, the drive element 5 may be an electric cylinder.

[0044] In one embodiment, please refer to Figure 1 The input mechanism 2 includes a torque sensor 26, which is connected between the safety clutch 23 and the spindle box 24.

[0045] For example, the safety clutch 23 can be connected to the torque sensor 26 via a flange, and the torque sensor 26 can be connected to the spindle box 24 via a flange. Here, by setting the torque sensor 26 between the safety clutch 23 and the spindle box 24, the torque can be tested in real time, thereby improving the measurement accuracy of the input device 100.

[0046] In one embodiment, please refer to Figure 2 The docking mechanism 25 includes an adapter flange 251, a diaphragm coupling 252, a pin 253, an end cap 254, and a docking assembly 255. The adapter flange 251 is connected between the spindle box 24 and the diaphragm coupling 252. The other end of the diaphragm coupling 252 is connected to the end cap 254. The pin 253 is located between the diaphragm coupling 252 and the end cap 254. The end cap 254 is connected to one end of the docking assembly 255. The other end of the docking assembly 255 is used to dock with the motor under test.

[0047] For example, the end cap 254 and the ejector pin 253 can be located on one side of the diaphragm coupling 252 along the first direction, and the ejector pin 253 can press against the other side of the diaphragm coupling 252 along the first direction. In this way, after the docking mechanism 25 receives a thrust in the first direction, the ejector pin 253 can withstand a portion of the thrust, reducing the possibility of the diaphragm coupling 252 being damaged and improving its service life. By setting the diaphragm coupling 252, the angular deviation between the docking mechanism 25 and the half-shaft of the motor under test can be compensated.

[0048] In one embodiment, please refer to Figure 2 The docking assembly 255 includes a connector 2551 and a movable component 2552. The docking mechanism 25 includes a buffer spring 256. The connector 2551 is connected to the end cap 254. The movable component 2552 is sleeved on the connector 2551. The movable component 2552 can move relative to the connector 2551 in a first direction. The movable component 2552 is used to dock with the motor under test. The buffer spring 256 is disposed between the connector 2551 and the movable component 2552 in the first direction. The movable component 2552 can move in the first direction to compress the buffer spring 256 when the motor under test abuts against it.

[0049] For example, the connector 2551 can be bolted to the end cap 254, the movable member 2552 can be sleeved on the outer surface of the connector 2551, and the buffer elasticity can be disposed between the end of the movable member 2552 and the shoulder of the connector 2551 in the first direction.

[0050] In this way, when the half-shaft of the motor under test is not docked with the moving part 2552, the motor under test will push the moving part 2552 to move in the first direction relative to the connecting part 2551, so as to squeeze the buffer spring 256 located between the two, so that the docking mechanism 25 has a buffer function when the half-shaft docks, which can improve the safety of the half-shaft docking.

[0051] In one embodiment, the input device 100 includes a sensor switch disposed at the buffer spring 256. When the moving part 2552 is not connected to the motor under test, the buffer spring 256 is compressed, and the sensor switch can control the input mechanism 2 to move away from the motor under test along a first direction. After the buffer spring 256 returns to its shape, the sensor switch can control the input mechanism 2 to move closer to the motor under test along the first direction to reconnect with the motor under test.

[0052] For example, the inductive switch can be communicatively connected to the drive unit 5. When the drive unit 5 drives the input mechanism 2 to move in the first direction toward the direction of the motor under test, and makes the moving part 2552 dock with the half shaft of the motor under test, when the half shaft of the motor under test is not docked with the moving part 2552, the moving part 2552 will move in the first direction to compress the buffer spring 256. At this time, the inductive switch is triggered and sends a distance command to the drive unit 5. After receiving the distance command, the drive unit 5 drives the input mechanism 2 to move in the first direction away from the motor under test. When the distance is reached until the buffer spring 256 recovers its deformation, the inductive switch is triggered and sends a docking command to the drive unit 5. After receiving the docking command, the drive unit 5 drives the input mechanism 2 to move in the first direction toward the direction of the motor under test, so that the moving part 2552 is re- docked with the half shaft of the motor under test.

[0053] Here, by setting an inductive switch at the buffer spring 256, the input mechanism 2 can be made to have the function of re-connection.

[0054] In one embodiment, please refer to Figure 2 The connecting part 2551 is an external spline shaft 2551a, and the moving part 2552 is an internal spline sleeve 2552a. The internal spline sleeve 2552a is fitted on the outer circumference of the external spline shaft 2551a and is used to connect with the motor under test.

[0055] Here, by using the half-shaft of the motor under test to connect with the inner spline sleeve 2552a, compared with the flange connection method, the half-shaft that was not connected can be reconnected simply by rotating the connection mechanism 25 and / or the half-shaft of the motor under test. Moreover, no other fasteners are needed to tighten it after connection, which is highly efficient.

[0056] In one embodiment, please refer to Figure 2 The inner spline sleeve 2552a includes an inner involute spline sleeve 2552a1 and an inner rectangular spline sleeve 2552a2. The inner involute spline sleeve 2552a1 and the inner rectangular spline sleeve 2552a2 are sleeved on the outer spline shaft 2551a along a first direction. The inner involute spline sleeve 2552a1 is used to connect with the motor to be tested.

[0057] For example, a buffer spring 256 is disposed between the inner rectangular spline sleeve 2552a2 and the outer spline shaft 2551a along a first direction. The inner involute spline sleeve 2552a1 and the inner rectangular spline sleeve 2552a2 can be connected as a single unit by screwing or welding.

[0058] Here, an inner involute spline sleeve 2552a1 is used to connect with the half shaft of the motor under test. The inner involute spline sleeve 2552a1 has a large contact area and uniform load distribution, which can transmit high torque.

[0059] In one embodiment, the adapter flange 251 and the diaphragm coupling 252 are connected by bolts. This improves the connection strength between the adapter flange 251 and the diaphragm coupling 252, resulting in better operational stability.

[0060] In one embodiment, the input mechanism 2 includes a connecting flange, and the safety clutch 23 is connected to the motor 22 via the connecting flange.

[0061] For example, the safety clutch 23 can be connected to the drive shaft of the motor 22 via a connecting flange. In this way, connecting the safety clutch 23 to the motor 22 via a connecting flange offers several advantages. Firstly, the flange has high rigidity and stability, effectively transmitting torque and reducing vibration. Secondly, flange connections are typically secured with bolts, making installation and disassembly convenient, facilitating maintenance and replacement. Thirdly, the flange has good alignment, reducing vibration and wear caused by misalignment.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An input device for a motor test bench, characterized in that, include: Base; Input mechanism, used for docking and testing with the motor under test; A first movable part and a second movable part are provided, the first movable part being disposed on the base and the second movable part being disposed on the input mechanism. The first movable part and the second movable part are movably engaged so that the input mechanism can move relative to the base along a first direction.

2. The input device according to claim 1, characterized in that, One of the first movable part and the second movable part is a slide rail, and the other of the first movable part and the second movable part is a slider, which slides in conjunction with the slide rail.

3. The input device according to claim 1, characterized in that, The input device includes a driving member disposed on the base or the input mechanism. The input mechanism is capable of moving relative to the base along the first direction through the cooperation of the first movable part and the second movable part under the drive of the driving member.

4. The input device according to claim 1, characterized in that, The input mechanism includes a support plate, a motor, a safety clutch, a spindle box, and a docking mechanism. The support plate has a second movable part on one side surface along the second direction. The motor and the spindle box are arranged on the opposite side of the support plate along the second direction. The safety clutch is disposed between the motor and the spindle box. The opposite end of the spindle box is connected to the docking mechanism. The docking mechanism is used to dock with the motor under test. The first direction intersects the second direction.

5. The input device according to claim 4, characterized in that, The input mechanism includes a torque sensor connected between the safety clutch and the spindle box.

6. The input device according to claim 4, characterized in that, The docking mechanism includes an adapter flange, a diaphragm coupling, a pin, an end cap, and a docking assembly. The adapter flange is connected between the spindle box and the diaphragm coupling. The other end of the diaphragm coupling is connected to the end cap. The pin is located between the diaphragm coupling and the end cap. The end cap is connected to one end of the docking assembly, and the other end of the docking assembly is used to dock with the motor under test.

7. The input device according to claim 6, characterized in that, The docking assembly includes a connector and a movable component. The docking mechanism includes a buffer spring. The connector is connected to the end cap. The movable component is sleeved on the connector and can move relative to the connector along the first direction. The movable component is used to dock with the motor under test. The buffer spring is disposed between the connector and the movable component along the first direction. The movable component can move along the first direction to compress the buffer spring when the motor under test abuts against it.

8. The input device according to claim 7, characterized in that, The input device includes a sensor switch disposed at the buffer spring. When the moving part is not connected to the motor under test, the buffer spring is compressed, and the sensor switch can control the input mechanism to move away from the motor under test along the first direction. After the buffer spring returns to its shape, the sensor switch can control the input mechanism to move closer to the motor under test along the first direction to reconnect with the motor under test.

9. The input device according to claim 7, characterized in that, The connector is an external spline shaft, and the moving part is an internal spline sleeve. The internal spline sleeve is fitted around the outer periphery of the external spline shaft and is used to connect with the motor under test.

10. The input device according to claim 9, characterized in that, The inner spline sleeve includes an inner involute spline sleeve and an inner rectangular spline sleeve. The inner involute spline sleeve and the inner rectangular spline sleeve are sleeved on the outer spline shaft along the first direction. The inner involute spline sleeve is used to dock with the motor under test.

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