Motor testing equipment

Abstract

The present invention provides a motor detection device, the technical solution of which is that the motor detection device includes a test frame, a lifting device and a test positioning piece, the test frame includes a fixed test plate and a movable test plate, the top of the test positioning piece is provided with a test positioning hole for inserting and positioning a rotor gear and mutually engaging in the circumferential direction, the test positioning piece is connected to the movable test plate and the bottom is provided with a connecting rod passing through the movable test plate, the bottom end of the connecting rod is used to connect an encoder or a load sheet. The movable test plate can be lifted upward by the lifting device, so that the test positioning piece on the movable test plate is positioned and matched with the motor rotor gear, when the motor is started and the rotor gear rotates, the rotor gear drives the connecting rod to rotate, the encoder can be used to collect the test data of the motor under no-load conditions, and the load sheet on the connecting rod can also be used to test the working performance of the motor under load conditions, thereby meeting the test requirements for the motor under load conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of motor detection, and in particular to a motor detection device. Background Art

[0002] During the production and processing of the motor, after the motor has completed the assembly of parts such as the rotor, stator and carbon brushes, the motor performance needs to be tested. At present, the method for testing the motor is usually to move the motor to be tested to the bottom of the testing equipment, insert the testing rod from top to bottom into the gear on the rotor, start the motor to rotate the rotor, and drive the testing rod to rotate through the gear on the rotor to obtain the test data of the motor to judge the working performance of the motor. However, the existing motor testing equipment cannot test the working performance of the motor when the motor rotor is subjected to load resistance, which has certain limitations. Summary of the invention

[0003] The object of the present invention is to provide a motor detection device capable of realizing load detection.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A motor testing device includes a test frame, a lifting device and a test positioning piece, the test frame includes a fixed test plate and a movable test plate, the movable test plate is located above the fixed test plate, the lifting device is installed between the fixed test plate and the movable test plate and is used to lift the movable test plate, the top of the test positioning piece is provided with a test positioning hole for inserting and positioning a rotor gear and interlocking with each other along the circumferential direction, the test positioning piece is connected to the movable test plate and has a connecting rod passing through the movable test plate at the bottom, the bottom end of the connecting rod is used to connect an encoder or a load sheet.

[0006] It is further provided that: the test positioning member comprises a test fixed block and a test floating block, the test fixed block is provided with a movable hole, and the test floating block can be installed in the movable hole in a floating manner.

[0007] It is further configured that the contour of the outer wall of the test floating block is a polygonal structure, the inner wall of the movable hole is configured to correspond to the polygonal structure of the outer wall contour of the test floating block, and the outer wall of the test floating block and the inner wall of the movable hole cooperate with each other and are clamped together along the circumferential direction.

[0008] It is further configured that a movable block is provided at one end of the test floating block close to the connecting rod, the movable block is arranged at the test positioning hole, and an elastic member is connected between the movable block and the connecting rod.

[0009] It is further configured that: the outer periphery of the test floating block close to one end of the connecting rod protrudes to form a limiting flange, and the inner wall of the movable hole away from one end of the connecting rod forms a limiting rib, and the limiting flange is snap-fitted with the limiting rib.

[0010] Further configuration: the motor detection equipment also includes a correction device, which includes a correction gear group, a linear drive device and a gear drive device, the test positioning piece is provided with meshing teeth along its circumferential direction, the gear drive device is used to drive the correction gear group to rotate, and the linear drive device is used to drive the correction gear group to move close to the test positioning piece and mesh with the meshing teeth.

[0011] It is further configured that: the correction device includes a correction slide, the correction slide is slidably connected to the movable test plate in a horizontal direction, and the linear drive device is installed on the movable test plate and is used to drive the correction slide to slide.

[0012] It is further configured that the correction gear set includes three interlocking gears meshing in sequence, the three interlocking gears are rotatably connected to the correction slide, and the gear driving device is installed on the correction slide and connected to the interlocking gears away from the test positioning member.

[0013] It is further configured that a positioning column is provided on the top surface of the movable test plate, and the positioning column is used to pass through a positioning installation hole on a fixture carrying the motor.

[0014] It is further configured that a limit stop is provided on the top surface of the movable test plate, the limit stop is higher than the test positioning piece and lower than the positioning column, and the limit stop is used to abut against the bottom surface of the fixture and provide a stopping effect.

[0015] Compared with the prior art, the solution of the present invention has the following advantages:

[0016] In the motor detection equipment involved in the present invention, the movable test plate can be lifted upward by a lifting device, so that the test positioning piece on the movable test plate is positioned and matched with the motor rotor gear. When the motor is started, the rotor gear rotates, and the rotor gear drives the connecting rod to rotate. The test data of the motor under no-load conditions can be collected through an encoder, and the working performance of the motor under load conditions can also be tested by a load sheet on the connecting rod. The test structure is simple and meets the test requirements for the motor under load conditions.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of a motor detection device in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a test stand in an embodiment of the present invention;

[0021] Figure 3 A cross-sectional view of a motor detection device in an embodiment of the present invention;

[0022] Figure 4 A cross-sectional view of a motor detection device in another embodiment of the present invention;

[0023] Figure 5 for Figure 3 A magnified schematic diagram of center A. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0025] like Figures 1 to 5 As shown, the present invention provides a motor detection equipment, including a test frame 1, a lifting device 2 and a test positioning piece 3, the test frame 1 includes a fixed test plate 11 and a movable test plate 12, the movable test plate 12 is located above the fixed test plate 11, the lifting device 2 is installed between the fixed test plate 11 and the movable test plate 12 and is used to lift the movable test plate 12, a test positioning hole 31 is provided on the top of the test positioning piece 3 for inserting and positioning the rotor gear and interlocking with each other along the circumferential direction, the test positioning piece 3 is connected to the movable test plate 12 and a connecting rod 4 passing through the movable test plate 12 is provided at the bottom, and the bottom end of the connecting rod 4 is used to connect an encoder 5 or a load sheet 6.

[0026] The movable test plate 12 can be lifted upward by the lifting device 2, so that the test positioning piece 3 on the movable test plate 12 is positioned and matched with the motor rotor gear. When the motor starts, the rotor gear rotates, and the rotor gear drives the connecting rod 4 to rotate. The test data of the motor under no-load conditions can be collected through the encoder 5, and the working performance of the motor under load conditions can also be tested through the load plate 6 on the connecting rod 4. The test structure is simple and meets the test requirements for the motor under load conditions.

[0027] In this embodiment, the encoder 5 and the load sheet 6 can be connected to the connecting rod 4 according to actual needs, and can be specifically connected and fixed by bolt fasteners. When the encoder 5 is connected to the connecting rod 4, when the load sheet 6 is placed on the connecting rod 4, the test positioning member 3 is affected by the gravity of the load sheet 6, resulting in an increase in resistance during the rotation of the test positioning member 3, and an increase in the rotation resistance of the motor rotor gear matched with the test positioning member 3, so that the working performance of the motor under resistance, that is, under load, can be tested.

[0028] In this embodiment, the motor testing device further includes a pressing device 7, which can move in three directions and is used to press down and fix the motor on the fixture to prevent the motor from shaking and moving during the test.

[0029] Furthermore, the test positioning member 3 includes a test fixed block 32 and a test floating block 33. The test fixed block 32 is provided with a movable hole 321. The test floating block 33 can be installed in a floating manner in the movable hole 321. Preferably, the contour of the outer peripheral wall of the test floating block 33 is a polygonal structure, and the inner wall of the movable hole 321 is arranged to correspond to the polygonal structure of the outer peripheral wall contour of the test floating block 33. The outer peripheral wall of the test floating block 33 and the inner wall of the movable hole 321 are matched and mutually engaged along the circumferential direction.

[0030] By setting a floating test floating block 33 on the test fixed block 32, during the process of the test positioning piece 3 and the motor rotor gear being matched, when the test positioning hole 31 on the test positioning piece 3 and the rotor gear cannot be matched and collide with each other, the test floating block 33 can move downward to avoid strong collision and extrusion with the motor rotor gear, which may cause damage to the test positioning piece 3 and the motor rotor gear.

[0031] In this embodiment, the test floating block 33 is generally in the shape of a polygonal column. Such a structural setting can make the test floating block 33 and the test fixed block 32 clamped and fixed in the circumferential direction. The test floating block 33 can only move in the vertical direction relative to the test fixed block 32, providing a buffering effect when colliding with the rotor gear. The test floating block 33 cannot rotate relative to the test fixed block 32. Therefore, when the test positioning member 3 cooperates with the rotor gear, the rotation of the rotor gear drives the test floating block 33 to rotate, and the test floating block 33 simultaneously drives the test fixed block 32 to rotate. The test fixed block 32 is connected to the connecting rod 4 and drives the connecting rod 4 to rotate, so that the working performance of the motor can be tested.

[0032] Furthermore, a movable block 34 is provided at one end of the test floating block 33 close to the connecting rod 4, and the movable block 34 is arranged at the test positioning hole 31. An elastic member 35 is connected between the movable block 34 and the connecting rod 4, and the elastic member 35 is a spring. Preferably, a movable groove 41 is provided on the top surface of the connecting rod 4 for the elastic member 35 and the movable block 34 to be embedded and vertically moved. In this embodiment, a mounting groove 331 is provided in the middle of the bottom surface of the test floating block 33, and the movable block 34 is embedded in the mounting groove 331.

[0033] Through such a setting, the movable block 34 is connected to the test floating block 33, and a spring is connected to the bottom of the movable block 34, so that the test floating block 33 has a floating function. In addition, the movable block 34 can also provide a stop limit for the rotor gear. The movable block 34 and the test floating block 33 adopt a concave-convex matching structure, which improves the connection reliability of the two and makes it difficult for the two to separate.

[0034] In this embodiment, the inner wall of the test positioning hole 31 is a tooth-shaped structure for engaging with the rotor gear. When the rotor gear rotates, the test positioning member 3 rotates synchronously with the rotor gear.

[0035] Furthermore, the outer periphery of the test floating block 33 near the end of the connecting rod 4 protrudes to form a limiting flange 332, and the inner wall of the movable hole 321 away from the end of the connecting rod 4 forms a limiting rib 3211, and the limiting flange 332 is engaged with the limiting rib 3211. By providing the engaging structure of the limiting flange 332 and the limiting rib 3211, a limiting function is provided for the test floating block 33 to prevent the test floating block 33 from falling out of the test fixed block 32.

[0036] In this embodiment, a bearing 8 is installed on the movable test plate 12 at a position where the connecting rod 4 passes through, and the bearing 8 is connected to the connecting rod 4 .

[0037] Furthermore, the motor detection equipment also includes a correction device 9, which includes a correction gear group 91, a linear drive device 92 and a gear drive device 93. The test positioning member 3 is provided with meshing teeth along its circumferential direction. The gear drive device 93 is used to drive the correction gear group 91 to rotate, and the linear drive device 92 is used to drive the correction gear group 91 to move close to the test positioning member 3 and engage with the meshing teeth.

[0038] By setting up the correction device 9, the correction gear set 91 can be driven by the linear drive device 92 to engage with the test positioning piece 3, and the gear drive device 93 can be linked to the correction gear set 91 to rotate, thereby driving the test positioning piece 3 to rotate to a suitable angle to meet the requirement of inserting the rotor gear into the test positioning hole 31. By adopting an automated control method, there is no need to manually adjust the test positioning piece 3 to match the rotor gear, thereby improving the degree of automation and the efficiency of motor testing.

[0039] Furthermore, the correction device 9 includes a correction slide 94, which is slidably connected to the movable test plate 12 in a horizontal direction, and the linear drive device 92 is installed on the movable test plate 12 and is used to drive the correction slide 94 to slide. In this embodiment, the linear drive device 92 is a driving cylinder.

[0040] In this embodiment, the correction gear set 91 includes three sequentially meshed linkage gears 911, and the three linkage gears 911 are all rotatably connected to the correction slide 94. The gear drive device 93 is installed on the correction slide 94 and connected to the linkage gear 911 away from the test positioning member 3. The gear drive device 93 is a drive motor. Preferably, the three linkage gears 911 are arranged in a straight line. In other embodiments, one, two or more than three linkage gears 911 may also be provided.

[0041] By setting three linkage gears 911 distributed in a straight line, and connecting the driving motor to the linkage gear 911 farthest from the test positioning member 3, when the driving motor is started, the linkage gear 911 farthest away starts to rotate and links the other two linkage gears 911 to rotate. After the transmission of multiple gears, the stability of the linkage gear 911 during rotation is improved, and it is not easy to shake. When the linkage test positioning member 3 rotates, the rotation angle of the test positioning member 3 can be more accurately controlled, so that the test positioning member 3 can cooperate with the rotor gear at one time, thereby improving the test efficiency.

[0042] Furthermore, a positioning column 121 is provided on the top surface of the movable test plate 12, and the positioning column 121 is used to pass through the positioning and mounting hole on the fixture carrying the motor. By providing the positioning column 121, the positioning column 121 can cooperate with the positioning and mounting hole on the fixture, thereby ensuring that the rotor gear is located directly above the test positioning member 3, avoiding collision damage to the rotor gear due to positioning error.

[0043] Furthermore, a limit stopper 122 is provided on the top surface of the movable test plate 12 , and the limit stopper 122 is higher than the test positioning member 3 and lower than the positioning column 121 . The limit stopper 122 is used to abut against the bottom surface of the fixture and provide a stopping effect.

[0044] By providing the limit stopper 122, the limit stopper 122 can contact with the bottom surface of the fixture, thereby protecting the test positioning member 3 and the correction gear set 91 from collision damage, thereby ensuring the safety of the motor test process.

[0045] Furthermore, four connecting columns 123 are provided under the movable test plate 12, and four guide seats 111 are provided on the fixed test plate 11. The connecting columns 123 pass through the guide seats 111, and the guide seats 111 provide lifting guides for the connecting columns 123, thereby improving the stability of the movable test plate 12 during lifting movement.

[0046] In summary, the solution of the present invention has the following advantages:

[0047] In the motor detection equipment involved in the present invention, the movable test plate 12 can be lifted upward by the lifting device 2, so that the test positioning piece 3 on the movable test plate 12 is positioned and matched with the motor rotor gear. When the motor starts and the rotor gear rotates, the rotor gear drives the connecting rod 4 to rotate. The test data of the motor under no-load conditions can be collected through the encoder 5, and the working performance of the motor under load conditions can also be tested through the load sheet 6 on the connecting rod 4. The test structure is simple and meets the test requirements for the motor under load conditions.

[0048] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A motor detection device, characterized in that: The invention comprises a test frame, a lifting device and a test positioning member, wherein the test frame comprises a fixed test plate and a movable test plate, wherein the movable test plate is located above the fixed test plate, wherein the lifting device is installed between the fixed test plate and the movable test plate and is used to lift the movable test plate, wherein a test positioning hole for inserting and positioning a rotor gear and mutually engaging with each other in a circumferential direction is provided on the top of the test positioning member, wherein the test positioning member is connected to the movable test plate and a connecting rod passing through the movable test plate is provided at the bottom, wherein the bottom end of the connecting rod is used to connect with an encoder or a load sheet, wherein the test positioning member comprises a test fixed block and a test floating block, wherein a movable hole is provided on the test fixed block, wherein the test floating block is floatingly installed in the movable hole, wherein the contour of the outer peripheral wall of the test floating block is a polygonal structure, wherein the inner wall of the movable hole is arranged to correspond to the contour of the outer peripheral wall of the test floating block in a polygonal structure, wherein the outer peripheral wall of the test floating block matches with the inner wall of the movable hole and mutually engages with each other in a circumferential direction, wherein a movable block is provided at one end of the test floating block close to the connecting rod, wherein the movable block is arranged at the test positioning hole, and an elastic member is connected between the movable block and the connecting rod; It also includes a correction device, which includes a correction gear group, a linear drive device and a gear drive device. The test positioning piece is provided with meshing teeth along its circumferential direction. The gear drive device is used to drive the correction gear group to rotate. The linear drive device is used to drive the correction gear group to move close to the test positioning piece and mesh with the meshing teeth. The correction device includes a correction slide, which is slidably connected to the movable test plate in a horizontal direction. The linear drive device is installed on the movable test plate and is used to drive the correction slide to slide. The correction gear group includes three interlocking gears meshing in sequence. The three interlocking gears are all rotatably connected to the correction slide. The gear drive device is installed on the correction slide and connected to the interlocking gear away from the test positioning piece.

2. The motor detection device according to claim 1 is characterized in that: The outer periphery of the test floating block close to one end of the connecting rod protrudes to form a limiting flange, and the inner wall of the movable hole away from one end of the connecting rod forms a limiting rib, and the limiting flange is engaged with the limiting rib.

3. The motor detection device according to claim 1 is characterized in that: A positioning column is provided on the top surface of the movable test plate, and the positioning column is used to pass through a positioning installation hole on a fixture carrying the motor.

4. The motor detection device according to claim 3 is characterized in that: A limit stopper is provided on the top surface of the movable test plate. The limit stopper is higher than the test positioning piece and lower than the positioning column. The limit stopper is used to abut against the bottom surface of the fixture and provide a stopping effect.

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