Motor rotating shaft torque test fixture

Abstract

The utility model provides a motor rotating shaft torque test fixture, which comprises a base, two groups of mounting seats capable of relatively sliding are arranged on the base, detachable clamping frames are arranged on the two groups of mounting seats, a driving mechanism connected with the two groups of mounting seats is arranged on the base, and the two groups of mounting seats are driven to open and close through the driving mechanism. A mounting shell is arranged on the clamping frame, two sets of sliding blocks are arranged in the mounting shell in a sliding mode, threaded rotary knobs are connected to the sliding blocks in a threaded mode, abutting columns are arranged at the ends of the threaded rotary knobs, limiting assemblies connected with the sliding blocks are arranged on the mounting shell, and the positions of the sliding blocks are limited through the limiting assemblies. The motor can be axially limited through the fixture, so that the motor is stably fixed, the motor is prevented from rotating in the fixture when the torque of a rotating shaft of the motor is tested, and the accuracy of test data is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing, in particular to a motor shaft torque testing fixture. Background Art

[0002] The motor shaft torque test is designed to evaluate the torque output capacity of the motor under different working conditions to ensure that the motor performance meets the design requirements and safety standards. The test principle is based on the conversion relationship between torque and rotational force, and is achieved by measuring the torsional torque of the motor shaft under a specific load or speed. During the test, the motor may move due to external forces. In order to ensure the accuracy of the test data, a test fixture is required to fix the position of the motor.

[0003] For example, the Chinese utility model patent No. 200620107600.9 provides a motor shaft torque test fixture, which includes a base plate, a support plate connected to the base plate, and a fixed plate fixed to the support plate. A power device and a spring pressure device are provided between the base plate and the fixed plate, and an elastic positioning component is provided between the upper clamping block and the lower clamping block. The fixture clamps the motor through the upper clamping block, the lower clamping block and the elastic positioning component between the two, and the positioning is accurate and the motor is convenient to remove and discharge.

[0004] However, since the casing of most motors is an arc surface with irregular grooves, most existing test fixtures fix the motors through simple clamping, which makes it inconvenient to limit the axial position of the motor. As a result, when testing its torsional force, the motor is prone to rotate between the fixtures, which will cause the accuracy of its test data to decrease. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes a motor shaft torque test fixture to solve the technical problem raised in the above background technology that the casing of most motors is an arc surface with irregular grooves, and most of the existing test fixtures fix the motor by simple clamping, which is not convenient for axially limiting the position of the motor, resulting in the motor easily rotating between the fixtures when testing its torsional force.

[0006] To achieve the above purpose, the utility model provides the following technical solution, a motor shaft torque test fixture, including:

[0007] Pedestal;

[0008] Two groups of mounting seats are provided and are relatively slidably arranged on the base, and both groups of mounting seats are provided with detachable clamping frames;

[0009] A driving mechanism, disposed on the base and connected to the two groups of mounting seats, to drive the two groups of mounting seats to open and close;

[0010] A mounting shell is arranged on the clamping frame, wherein two sets of sliding blocks are arranged in the mounting shell, threaded knobs are screwed on the sliding blocks, and abutment posts are arranged at the ends of the threaded knobs; and

[0011] A limiting component is arranged on the mounting shell and connected to the slider to limit the position of the slider.

[0012] In a preferred embodiment, the driving mechanism comprises:

[0013] A bidirectional screw rod is rotatably arranged in the base along its axis, and a rotating portion is arranged at the end of the bidirectional screw rod; and

[0014] The movable seats are provided in two groups and are respectively screwed to the two ends of the bidirectional screw rod. The two groups of mounting seats are respectively detachably provided on the two groups of movable seats.

[0015] In a preferred embodiment, a receiving block is provided at the end of the mounting seat, and a clamping frame is provided on the clamping frame. The clamping frame is slidably clamped on the receiving block and fixed thereto by bolts.

[0016] In a preferred embodiment, the limiting assembly includes a top screw, and the top screw is provided in two groups, and the ends of the two groups of the top screw are rotatably connected to the two groups of the sliding blocks respectively.

[0017] In a preferred embodiment, a slide groove is provided on the mounting shell, and the threaded knob is slidably mounted in the slide groove.

[0018] In a preferred embodiment, a fixing frame is provided on the base.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] When the fixture is in use, the motor to be tested can be placed between the two groups of clamping frames, and the two groups of clamping frames are controlled to close by a driving mechanism to initially clamp the motor, and then the two groups of slide blocks are slid on the mounting shell, and the positions of the slide blocks are limited by the limit assembly, and finally the threaded knob is turned to make it move on the slide block, so that the abutment column is clamped in the irregular groove on the motor, and the motor can be axially limited, thereby stably fixing the motor to prevent the motor from rotating in the fixture when its shaft torque is tested, thereby effectively improving the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 A front view of a motor shaft torque test fixture provided by the utility model;

[0023] Figure 2 This is a top view of a motor shaft torque test fixture of the utility model;

[0024] Figure 3 This is a cross-sectional view of a motor shaft torque test fixture of the utility model;

[0025] Reference numerals:

[0026] 101, base; 102, fixed frame; 103, bidirectional screw rod; 104, rotating part; 105, movable seat;

[0027] 201, mounting seat; 202, receiving block;

[0028] 301, clamping frame; 302, snap-on frame; 303, mounting shell; 304, slider; 305, threaded knob; 306, abutment column; 307, top screw; 308, slide groove. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the utility model and cannot be understood as limiting the scope of protection of the utility model. Technical personnel in this field can make some non-essential improvements and adjustments to the utility model based on the above application content.

[0030] Example:

[0031] like Figures 1 to 3 As shown, the utility model provides a motor shaft torque test fixture, including a base 101, a fixing frame 102 is arranged on the base 101, and the base 101 is fixed on the test plane by the fixing frame 102. Two sets of relatively slidable mounting seats 201 are arranged on the base 101, and the two sets of mounting seats 201 are both provided with a detachable clamping frame 301. A driving mechanism connected with the two sets of mounting seats 201 is arranged on the base 101, and the two sets of mounting seats 201 are driven to open and close by the driving mechanism. The driving mechanism includes a bidirectional screw rod 103 rotatably arranged in the base 101, and a rotating part 104 is arranged at the end of the bidirectional screw rod 103. Both ends of the bidirectional screw rod 103 are screwed with movable seats 105, and the two sets of mounting seats 201 are detachably arranged on the two sets of movable seats 105.

[0032] When in use, the bidirectional screw rod 103 can be driven to rotate by controlling the rotation of the rotating part 104, wherein the rotation of the rotating part 104 can be manually controlled or driven by a motor. During the rotation process, the bidirectional screw rod 103 drives the two sets of movable seats 105 to open and close in opposite directions, thereby driving the two sets of mounting seats 201 to open and close, so that the motor can be initially clamped and fixed by controlling the two sets of clamping frames 301 to close.

[0033] like Figure 3 As shown, in this embodiment, a receiving block 202 is provided at the end of the mounting seat 201, and a clamping frame 302 is provided on the clamping frame 301, and the clamping frame 302 is slidably clamped on the receiving block 202 and fixed thereto by bolts. The clamping frame 301 is supported by the clamping frame 302 being slidably clamped on the receiving block 202, and the position of the clamping frame 301 is laterally fixed by bolts, thereby preventing the clamping frame 301 from being displaced, and facilitating the replacement of the clamping frame 301, so as to facilitate the clamping of motors of different models.

[0034] like Figures 1 to 3 As shown, in this embodiment, a mounting shell 303 is provided on the clamping frame 301, and two groups of slidingly mounted sliders 304 are provided in the mounting shell 303. A threaded knob 305 is screwed on the slider 304, and an abutment column 306 is provided at the end of the threaded knob 305. A slide groove 308 is provided on the mounting shell 303, and the threaded knob 305 is slidably clamped in the slide groove 308. A limit assembly connected to the slider 304 is provided on the mounting shell 303, and the position of the slider 304 is limited by the limit assembly. The limit assembly includes a top screw 307, and two groups of top screws 307 are provided. The ends of the two groups of top screws 307 are rotatably connected to the two groups of sliders 304 respectively.

[0035] The top screw 307 can be rotated to slide along its axis on the mounting shell 303, thereby driving the slider 304 to slide in the mounting shell 303, and the threaded knob 305 on the slider 304 can slide in the slide groove 308. After the adjustment is completed, the threaded knob 305 can be rotated to make the abutment column 306 slide along its axis to be stuck in the groove on the surface of the motor, so as to limit the axis of the motor.

[0036] Specific usage and beneficial effects of the utility model:

[0037] When the clamp is in use, the motor to be tested can be placed between the two groups of clamping frames 301, and the two groups of clamping frames 301 can be controlled to close by rotating the bidirectional screw rod 103 to initially clamp the motor, and then the two groups of sliders 304 can be driven to slide on the mounting shell 303 and limit their positions by rotating the top screw 307, and finally the threaded knob 305 can be rotated to make it move on the slider 304, so that the abutment column 306 can be clamped in the irregular groove on the motor, and the motor can be axially limited, thereby stably fixing the motor to prevent the motor from rotating in the clamp when testing its shaft torque, thereby effectively improving the accuracy of the test data.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments. On the basis of the utility model, some modifications or improvements can be made thereto, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the scope of protection claimed by the utility model.

Claims

1. A motor shaft torque test fixture, characterized in that: Included are: Base (101); Two groups of mounting seats (201) are provided and are relatively slidably arranged on the base (101), and both groups of mounting seats (201) are provided with detachable clamping frames (301); A driving mechanism, arranged on the base (101) and connected to the two groups of mounting seats (201) to drive the two groups of mounting seats (201) to open and close; A mounting shell (303) is arranged on the clamping frame (301), and two sets of sliding blocks (304) are arranged inside the mounting shell (303). A threaded knob (305) is screwed onto the sliding block (304), and an abutment column (306) is arranged at the end of the threaded knob (305); and A position limiting component is arranged on the mounting shell (303) and connected to the slider (304) to limit the position of the slider (304).

2. A motor shaft torque test fixture according to claim 1, characterized in that: The driving mechanism comprises: A bidirectional screw rod (103) is rotatably arranged along its axis in the base (101), and a rotating portion (104) is arranged at the end of the bidirectional screw rod (103); and The movable seats (105) are provided in two groups and are respectively screwed to the two ends of the bidirectional screw rod (103). The two groups of mounting seats (201) are respectively detachably provided on the two groups of movable seats (105).

3. The motor shaft torque test fixture according to claim 2, characterized in that: A receiving block (202) is provided at the end of the mounting seat (201), and a clamping frame (302) is provided on the clamping frame (301). The clamping frame (302) is slidably clamped on the receiving block (202) and fixed thereto by bolts.

4. The motor shaft torque test fixture according to claim 1, characterized in that: The limiting assembly comprises a top screw (307), and two groups of the top screw (307) are provided. The ends of the two groups of the top screw (307) are rotatably connected to the two groups of the sliding blocks (304) respectively.

5. The motor shaft torque test fixture according to claim 1, characterized in that: The mounting shell (303) is provided with a slide groove (308), and the threaded knob (305) is slidably mounted in the slide groove (308).

6. The motor shaft torque test fixture according to claim 1, characterized in that: A fixing frame (102) is arranged on the base (101).

Images