Auxiliary testing device for any-angle motor stalling test

Abstract

The utility model discloses an arbitrary-angle motor locked-rotor test auxiliary testing device, which comprises a horizontal moving platform, an inclined adjusting platform and a locked-rotor unit, and is characterized in that the horizontal moving platform is used for realizing the movement of the inclined adjusting platform along the X direction and the Y direction; the inclined adjusting platform is used for achieving movement of the locked-rotor unit in the Z direction and rotation around the Y axis; the locked-rotor unit comprises a mounting plate and a locked-rotor flange used for being coaxially connected with an output shaft of the motor, the mounting plate is connected with the inclination adjusting platform, and the locked-rotor flange is further provided with a plurality of pin holes evenly distributed in the annular direction and a plurality of second mounting holes evenly distributed in the annular direction; the locked-rotor flange is connected with the mounting plate through at least one pin penetrating through the pin hole and at least one first screw penetrating through the second mounting hole, and the axis of the locked-rotor flange is parallel to the Y axis. The device can meet the locked-rotor measurement of the motor at any angle, and is good in universality.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor test device technical field, concretely relates to a kind of arbitrary angle motor locked-rotor test auxiliary testing device. BACKGROUND

[0002] Locked-rotor torque test in driving motor is an important performance test, and it is crucial to evaluate the performance, reliability and performance of motor under different working conditions. Locked-rotor torque test mainly tests the maximum torque that motor can produce when output shaft is completely fixed (i.e. locked-rotor state), which can meet the following requirements: 1) evaluate motor performance: by measuring locked-rotor torque, the output capacity of motor under extreme load conditions can be understood, which is very important for motor design, selection and application scene matching. 2) Determine the load capacity of motor: locked-rotor torque is one of the key indicators to measure whether motor can work normally under extreme conditions, which helps to determine the maximum load capacity of motor. 3) Detect motor design defects: locked-rotor torque test can reveal possible problems in motor design, such as unreasonable magnetic circuit design and improper material selection, so as to help optimize design. 4) Ensure motor quality: as a link of motor quality control, locked-rotor torque test helps to ensure that the motor meets the specified performance standards and customer requirements. But the existing motor locked-rotor test auxiliary testing device is generally affected by the distribution of fixed hole position on rotating disc when in use, and can only be used for locked-rotor measurement at some evenly distributed hole positions of motor shaft, which cannot meet the locked-rotor measurement at any angle, and the application range is limited. SUMMARY

[0003] The utility model aims at the above problem, and provides an arbitrary angle motor locked-rotor test auxiliary testing device, which can meet the locked-rotor measurement of motor at any angle, and has good versatility.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] The utility model provides an arbitrary angle motor locked-rotor test auxiliary testing device, which comprises a horizontal moving platform, an inclined adjusting platform and a locked-rotor unit, wherein:

[0006] The horizontal moving platform is used to realize the movement of the inclined adjusting platform along X and Y directions.

[0007] The inclined adjusting platform is used to realize the movement of the locked-rotor unit along Z direction and rotation around Y axis.

[0008] The stalling unit comprises a mounting plate and a stalling flange for coaxially connecting an output shaft of the motor, the mounting plate is connected with the tilt adjustment platform, a plurality of annularly distributed pin holes and a plurality of annularly distributed second mounting holes are formed in the stalling flange, the stalling flange is connected with the mounting plate through at least one pin penetrating the pin hole and at least one first screw penetrating the second mounting hole, and the axis of the stalling flange is parallel to the Y axis.

[0009] Preferably, the horizontal moving platform comprises a base plate, an X-direction moving unit and a Y-direction moving unit, the X-direction moving unit is connected with the base plate, the Y-direction moving unit is connected with the X-direction moving unit, and the X-direction moving unit and the Y-direction moving unit are both guide rail and sliding block mechanisms.

[0010] Preferably, the tilt adjustment platform comprises two symmetrically arranged adjustment units, each adjustment unit comprises a mounting seat, an adjustment seat, a Z-direction guide rail and two first nuts, the mounting seat is connected with the horizontal moving platform and is provided with a plurality of first threaded holes, the adjustment seat is provided with a spherical groove and a waist-shaped groove corresponding to the first threaded holes, the adjustment seat and the mounting seat are connected through second screws penetrating the waist-shaped grooves and the first threaded holes, the Z-direction guide rail comprises a threaded guide rail and a ball head connected with each other, the two first nuts are threadedly connected with the threaded guide rail, the ball head is in clearance fit with the spherical groove, and the two ends of the mounting plate are respectively penetrated on the threaded guide rails of the two adjustment units and fastened through the first nuts.

[0011] Preferably, the adjustment unit further comprises a third nut, the third nut is threadedly connected with the threaded guide rail, and the threaded guide rail is relatively fixed through the third nut abutting against the adjustment seat.

[0012] Preferably, the stalling unit further comprises a plurality of second nuts, an arc-shaped sliding groove is formed in the mounting plate, the first screw is penetrated in the second mounting hole and connected with the second nut in the arc-shaped sliding groove, and the second nut is a T-shaped nut.

[0013] Preferably, the stalling flange comprises two symmetrically arranged semicircular plates.

[0014] Preferably, the mounting plate is further provided with a scale for displaying a rotation adjustment angle.

[0015] Preferably, the pin hole is 36.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] When the device is connected to the motor on the test bench, it can be freely adjusted in three directions of X, Y, and Z in space through the horizontal moving platform and the tilt adjustment platform, which is convenient for centering and driving the stall flange to achieve rotation at any angle. There is no need to redesign the tooling when rotating at different angles during the stall test, which reduces the production cost of the test tooling and does not require disassembly and replacement of the entire machine. It can reduce the workload of the assembly personnel, shorten the installation and adjustment time, and improve work efficiency. It is suitable for different test benches and stalls at any angle to meet the test requirements of customers and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the utility model's auxiliary test device for an arbitrary angle motor stall test;

[0019] Figure 2 This is a front view of the utility model's auxiliary test device for motor stall test at any angle;

[0020] Figure 3 This is a structural diagram of the locked-rotor unit of the utility model;

[0021] Figure 4 For this utility model Figure 3 AA cross-sectional view;

[0022] Figure 5 This is a schematic diagram of the assembly of the mounting seat and the adjustment seat of the utility model;

[0023] Figure 6 This is a schematic diagram of the assembly of the adjustment seat and the Z-direction guide rail of the utility model;

[0024] Figure 7 For this utility model Figure 6 BB cross-sectional view;

[0025] Figure 8 This is a schematic diagram of the rotation angle adjustment of the mounting plate of the utility model.

[0026] Explanation of the accompanying drawings: 1. Horizontal moving platform; 2. Tilt adjustment platform; 3. Locking unit; 11. Base plate; 12. X-moving unit; 13. Y-moving unit; 21. Mounting seat; 22. Adjustment seat; 23. Z-guide rail; 24. First nut; 31. Mounting plate; 32. Locking flange; 33. Pin; 211. First mounting hole; 212. First threaded hole; 221. Spherical slot hole; 222. Waist-shaped slot; 231. Threaded guide rail; 232. Ball head; 311. Arc-shaped slide groove; 312. First screw; 313. Second nut; 321. Second mounting hole; 322. Pin hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] like Figure 1-8 As shown, an auxiliary test device for a motor stall test at any angle includes a horizontal moving platform 1, an inclination adjustment platform 2 and a stall unit 3, wherein:

[0030] The horizontal moving platform 1 is used to realize the movement of the tilt adjustment platform 2 along the X and Y directions;

[0031] The tilt adjustment platform 2 is used to enable the stall unit 3 to move along the Z direction and rotate around the Y axis;

[0032] The blocking unit 3 includes a mounting plate 31 and a blocking flange 32 for coaxially connecting to the output shaft of the motor. The mounting plate 31 is connected to the tilt adjustment platform 2. The blocking flange 32 is also provided with a plurality of circumferentially evenly distributed pin holes 322 and a plurality of circumferentially evenly distributed second mounting holes 321. The blocking flange 32 is connected to the mounting plate 31 by at least one pin 33 passing through the pin hole 322 and at least one first screw 312 passing through the second mounting hole 321, and the axis of the blocking flange 32 is parallel to the Y-axis.

[0033] The entire device can be mounted on a test bench, which is used to connect the motor's fixed portion (stator). The motor's output shaft is coaxially connected to the device's locking flange 32. The locking flange 32 is connected to the tilt adjustment platform 2 via a mounting plate 31. The tilt adjustment platform 2 drives the locking flange 32 to rotate at any angle. During the locking test, the locking flange 32 and mounting plate 31 are connected by a first screw 312. To prevent excessive torque during the locking test, which could cause circumferential movement, a pin 33 is used to secure the device in the circumferential direction. This prevents relative displacement when the first screw 312 is tightened. Several pin holes 322, such as 36, are designed on the locking flange 32. This allows for direct adjustment through the pin holes, allowing for locking tests at angles of 0°, 10°, 20°, and so on, with n∈0-35. It also allows for locking tests at any angle after the tilt adjustment platform 2 is used. When connected to the test bench, the locking flange 32 can be freely adjusted in space along the X, Y, and Z axes, facilitating alignment.

[0034] For example, this application applies to the following standard requirements: According to GB / T 18488-2024, Section 6.3.10, for the stall torque test, five test points are evenly selected within one electrical cycle (0.02s). To meet this requirement, a device was designed to enable the relative position of the drive motor stator and rotor to form any angle. This met the customer's testing requirements, significantly shortened installation and adjustment time, and reduced the production cost of the test tooling.

[0035] In one embodiment, the horizontal moving platform 1 includes a base plate 11, an X-direction moving unit 12 and a Y-direction moving unit 13. The X-direction moving unit 12 is connected to the base plate 11, and the Y-direction moving unit 13 is connected to the X-direction moving unit 12. Both the X-direction moving unit 12 and the Y-direction moving unit 13 are guide rail slider mechanisms.

[0036] The base plate 11 is connected to the stage, and the X-axis moving unit 12 and the Y-axis moving unit 13 use a guide rail and slider mechanism. After the motor is fixed to the stage, the device is adjusted so that the motor output shaft is coaxially connected to the locking flange 32. This completes the X-axis and Y-axis movement adjustment of the device and achieves X-axis and Y-axis movement limit. It is easy to imagine that the guide rail and slider mechanism can also be replaced with other linear motion mechanisms known in the art.

[0037] In one embodiment, the tilt adjustment platform 2 includes two symmetrically arranged adjustment units, the adjustment units including a mounting seat 21, an adjustment seat 22, a Z guide rail 23 and two first nuts 24. The mounting seat 21 is connected to the horizontal moving platform 1 and is provided with a plurality of first threaded holes 212. The adjustment seat 22 is provided with a spherical slot 221 and a waist-shaped slot 222 corresponding to the first threaded hole 212 one by one. The connection between the adjustment seat 22 and the mounting seat 21 is achieved by passing through the waist-shaped slot 222 and the first threaded hole 212. The Z guide rail 23 includes a threaded guide rail 231 and a ball head 232 connected to each other. The two first nuts 24 are threadedly connected to the threaded guide rail 231, and the ball head 232 is clearance-fitted with the spherical slot 221. The two ends of the mounting plate 31 are respectively passed through the threaded guide rails 231 of the two adjustment units and fastened by the first nuts 24.

[0038] Among them, the mounting seat 21 is provided with a plurality of first mounting holes 211, and the mounting seat 21 is connected to the horizontal moving platform 1 by screws passing through the first mounting holes 211. The adjustment seat 22 and the Z-direction guide rail 23 are clearance-matched with the spherical slot 221 through the ball head 232, such as Figure 6 、 7 As shown, and through the adjustment of the waist groove 222, as shown Figure 5 As shown, the first nut 24 is used to limit the movement of the mounting plate 31 in the Z-axis direction. The two first nuts 24 of each adjustment unit are used to clamp the side mounting plate 31, which can form an angle of 30° to 150° with the horizontal plane in space to achieve a fan-shaped motion range. When the angle is α, the blocking flange 32 also forms an angle of α rotation, as shown in FIG. Figure 8 As shown, the specific rotation angle is related to the distance between the threaded guide rails 231, the length of the threaded guide rails 231 and the rotation angle of the threaded guide rails 231. Since the mounting seat 21 will also form a certain distance of offset in the horizontal direction, it is designed to be a waist-shaped groove 222 to give a certain offset. It should be noted that the threaded guide rail can be a stud. When adjusting, it is only necessary to complete the adjustment and fixation by detecting the horizontality (that is, the rotation angle can be detected) and the height. After the adjustment is completed, the horizontal movable platform 1 is moved to keep it aligned with the output shaft of the motor.

[0039] In one embodiment, the adjustment unit further includes a third nut that is threadedly connected to the threaded guide rail 231. The third nut abuts against the adjustment seat 22 to achieve relative fixation of the threaded guide rail 231. This facilitates the initial fixation of the threaded guide rail 231 to form a desired angle, thereby facilitating subsequent adjustment of the Z-direction movement of the mounting plate 31.

[0040] In one embodiment, the locking unit 3 further includes a plurality of second nuts 313. The mounting plate 31 defines an arcuate slot 311. A first screw 312 is inserted through the second mounting hole 321 and engages with the second nut 313 within the arcuate slot 311. The second nut 313 is a T-nut. The locking flange 32 is secured to the mounting plate 31 via the first screw 312 and the T-nut. Multiple T-nuts secure the locking flange 32 to the mounting plate 31 and facilitate adjustment within the arcuate slot 311.

[0041] In one embodiment, the locking flange 32 includes two symmetrically arranged semicircular plates connected by screws to form the locking flange 32. The gap formed by the adjacent surfaces of the two semicircular plates can be used to accurately indicate the scale on the scale.

[0042] In one embodiment, a scale for displaying the rotation adjustment angle is further provided on the mounting plate 31. The rotation angle can be displayed intuitively through the scale on the mounting plate 31 for easy observation.

[0043] In one embodiment, the number of pin holes 322 is 36, or it can be adjusted according to actual needs.

[0044] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely represent specific and detailed examples of the present application and should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An auxiliary test device for a motor stall test at any angle, characterized by: The arbitrary angle motor stall test auxiliary test device comprises a horizontal moving platform (1), an inclination adjustment platform (2) and a stall unit (3), wherein: The horizontal moving platform (1) is used to enable the tilt adjustment platform (2) to move in the X and Y directions; The tilt adjustment platform (2) is used to enable the stall unit (3) to move along the Z direction and rotate around the Y axis; The blocking unit (3) comprises a mounting plate (31) and a blocking flange (32) for coaxially connecting to the output shaft of the motor, wherein the mounting plate (31) is connected to the tilt adjustment platform (2), and the blocking flange (32) is further provided with a plurality of circumferentially evenly distributed pin holes (322) and a plurality of circumferentially evenly distributed second mounting holes (321), and the blocking flange (32) is connected to the mounting plate (31) via at least one pin (33) passing through the pin hole (322) and at least one first screw (312) passing through the second mounting hole (321), and the axis of the blocking flange (32) is parallel to the Y axis.

2. The auxiliary test device for a motor stall test at any angle according to claim 1, characterized in that: The horizontal moving platform (1) comprises a base plate (11), an X-moving unit (12) and a Y-moving unit (13); the X-moving unit (12) is connected to the base plate (11); the Y-moving unit (13) is connected to the X-moving unit (12); and both the X-moving unit (12) and the Y-moving unit (13) are guide rail and slider mechanisms.

3. The auxiliary test device for a motor stall test at any angle according to claim 1 or 2, characterized in that: The tilt adjustment platform (2) includes two symmetrically arranged adjustment units, the adjustment units including a mounting seat (21), an adjustment seat (22), a Z-direction guide rail (23) and two first nuts (24), the mounting seat (21) is connected to the horizontal moving platform (1) and is provided with a plurality of first threaded holes (212), the adjustment seat (22) is provided with a spherical slot hole (221) and a waist-shaped slot (222) corresponding to the first threaded hole (212), and the waist-shaped slot (222) and the first screw hole (212) are provided on the adjustment seat (22). The second screw of the threaded hole (212) realizes the connection between the adjustment seat (22) and the mounting seat (21); the Z-direction guide rail (23) comprises a threaded guide rail (231) and a ball head (232) connected to each other; the two first nuts (24) are threadedly connected to the threaded guide rail (231); the ball head (232) and the spherical slot (221) are clearance-matched; the two ends of the mounting plate (31) are respectively correspondingly provided on the threaded guide rails (231) of the two adjustment units and are fastened by the first nuts (24).

4. The auxiliary test device for a motor stall test at any angle according to claim 3, wherein: The adjustment unit further comprises a third nut, the third nut being threadedly connected to the threaded guide rail (231), and the relative fixation of the threaded guide rail (231) is achieved by the third nut abutting against the adjustment seat (22).

5. The auxiliary test device for a motor stall test at any angle according to claim 1, wherein: The blocking unit (3) further includes a plurality of second nuts (313), an arc-shaped sliding groove (311) is provided on the mounting plate (31), the first screw (312) is passed through the second mounting hole (321) and connected to the second nut (313) in the arc-shaped sliding groove (311), and the second nut (313) is a T-nut.

6. The auxiliary test device for a motor stall test at any angle according to claim 1, characterized in that: The blocking flange (32) comprises two symmetrically arranged semicircular plates.

7. The auxiliary test device for a motor stall test at any angle according to claim 1, wherein: The mounting plate (31) is also provided with a scale for displaying the rotation adjustment angle.

8. The auxiliary test device for a motor stall test at any angle according to claim 1, wherein: There are 36 pin holes (322).

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