Stator fixing tool for external rotor motor test

Abstract

The utility model relates to a stator fixing tool for an external rotor motor test, which comprises an adapter flange connected with a test rack, and is characterized by also comprising a stator clamp for clamping a stator and a baffle plate assembly for limiting the axial movement of the stator, the stator clamp is coaxially connected with the adapter flange, and the baffle plate assembly is coaxially connected with the adapter flange. The baffle assembly is connected with the stator end face and abuts against the end face of the stator clamp. According to the utility model, the radial movement of the stator in the test process is limited through the clamping of the stator clamp on the stator, and the axial movement of the stator in the test process is limited through the connection of the baffle plate assembly and the end surface of the stator and the abutting of the baffle plate assembly and the end surface of the stator clamp, thereby realizing the effective positioning of the stator. The reliability and stability of stator positioning in the test process are improved, and the stator positioning requirement of the external rotor motor test is met.

Description

Technical Field

[0001] The utility model relates to a stator fixing tool for testing an outer rotor motor, belonging to the technical field of testing outer rotor motors. Background Art

[0002] Rotating motors are composed of a rotor, a stator, a base, etc. The stator of a traditional inner rotor motor is generally installed on the base as a fixed part. The rotating rotor is installed inside the stator through bearings and rotates inside. When testing a single motor, the inner rotor motor can be placed directly on the test platform through the base. Unlike inner rotor motors, the rotor of an outer rotor motor is outside and the stator is inside. The rotor is an external rotating body supported by bearings. Before the test, the stator must be fixed with the help of a fixing tool. A patent document with application number CN201920692330.X and title: "A Fixing Device for an Outer Rotor Motor" discloses a fixing device for an outer rotor motor. The above scheme is only suitable for fixing the motor shaft of an outer rotor motor on a treadmill, and cannot be used to fix the stator of an outer rotor motor in other application scenarios. The patent document with application number CN202322339906.3 and title: "A test fixture for an outer rotor generator" discloses a test fixture for an outer rotor generator, but the above-mentioned fixture can only limit the radial movement of the stator during the test, but cannot limit the axial movement of the stator during the test. The reliability and stability of the stator positioning during the test need to be improved. Utility Model Content

[0003] The stator fixing fixture for testing an outer rotor motor provided by the utility model limits the radial movement of the stator during the test by clamping the stator with a stator clamp, and limits the axial movement of the stator during the test by connecting the baffle assembly to the end face of the stator and abutting against the end face of the stator clamp, thereby achieving effective positioning of the stator, improving the reliability and stability of the stator positioning during the test, and meeting the stator positioning requirements of the outer rotor motor test.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A stator fixing fixture for testing an outer rotor motor includes a transfer flange connected to a test frame, and is characterized in that it also includes a stator clamp for clamping the stator and a baffle assembly for limiting axial movement of the stator, wherein the stator clamp is coaxially connected to the transfer flange, and the baffle assembly is connected to the end face of the stator and abuts against the end face of the stator clamp.

[0006] Preferably, the stator clamp comprises two semi-cylindrical clamps that are butt-jointed and clamp the stator, one end of the semi-cylindrical clamp has a semi-circular flange folded outward 90 degrees, the semi-circular flange is fitted with the adapter flange, a flange connecting hole is provided on the semi-circular flange, and a clamp positioning hole corresponding to the flange connecting hole is provided on the adapter flange, and a bolt passes through the flange connecting hole and the clamp positioning hole to coaxially connect the positioning clamp with the adapter flange.

[0007] Preferably, the upper and lower ends of the semi-cylindrical clamp are provided with docking plates respectively, the docking plates are arranged along the axial direction and the two docking plates are aligned along the radial direction, and docking holes are provided on the docking plates.

[0008] Preferably, a through hole for the stator clamp to pass through is provided at the center of the adapter flange, and the clamp positioning holes are provided at the periphery of the through hole.

[0009] Preferably, the end surface of the other end of the semi-cylindrical clamp has an end plate, and the baffle assembly includes a pipe joint connected to the threaded hole of the stator end surface and a baffle sleeved on the pipe joint, and the baffle is pressed against the end plate as the pipe joint is tightened.

[0010] The beneficial effects of the utility model are:

[0011] The utility model discloses a stator fixing fixture for testing an outer rotor motor. The stator clamp clamps the stator and is connected with an adapter flange. The adapter flange is connected to a test frame to form a connection between the stator clamp and the test frame, thereby realizing the connection between the stator in the outer rotor motor and the test frame. The radial movement of the stator during the test is limited by clamping the stator with the stator clamp. The axial movement of the stator during the test is limited by connecting the baffle assembly with the end face of the stator and abutting against the end face of the stator clamp, thereby realizing effective positioning of the stator, improving the reliability and stability of the stator positioning during the test, and meeting the stator positioning requirements of the outer rotor motor test. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a stator fixing fixture for testing an outer rotor motor of the utility model.

[0013] Figure 2 Side view of the stator fixture for testing external rotor motors.

[0014] Figure 3 This is the front view of the semi-cylindrical clamp.

[0015] Figure 4 A cross-sectional view of a semi-cylindrical clamp.

[0016] Figure 5 This is a schematic diagram of the adapter flange. DETAILED DESCRIPTION

[0017] Combine the following Figures 1 to 5 The embodiments of the present utility model are described in detail.

[0018] The stator fixing fixture for testing an outer rotor motor includes an adapter flange 1 connected to a test frame, and is characterized in that it also includes a stator clamp 2 for clamping the stator 100 and a baffle assembly 3 for limiting axial movement of the stator 100, wherein the stator clamp 2 is coaxially connected to the adapter flange 1, and the baffle assembly 3 is connected to the end face of the stator and abuts against the end face of the stator clamp 2.

[0019] In the stator fixing fixture for testing the outer rotor motor described above, the stator clamp 2 clamps the stator 100 and is connected to the adapter flange 1, and the adapter flange 1 is connected to the test frame to form a connection between the stator clamp 2 and the test frame, thereby realizing the connection between the stator and the test frame in the outer rotor motor. The stator 100 is clamped by the stator clamp 2 to limit the radial movement of the stator during the test. The baffle assembly 3 is connected to the stator end face and abuts against the end face of the stator clamp 2 to limit the axial movement of the stator during the test, thereby realizing effective positioning of the stator, improving the reliability and stability of the stator positioning during the test, and meeting the stator positioning requirements of the outer rotor motor test.

[0020] The stator clamp 2 comprises two semi-cylindrical clamps 4 that are butt-jointed and clamp the stator 100. One end of the semi-cylindrical clamp 4 has a semi-circular flange 5 that is folded outward by 90 degrees. The semi-circular flange 5 fits the adapter flange 1. The semi-circular flange 5 has a flange connection hole 51. The adapter flange 1 has a fixture positioning hole 11 corresponding to the flange connection hole 51. Bolts pass through the flange connection hole 51 and the fixture positioning hole 11 to coaxially connect the positioning clamp 2 with the adapter flange 1. The semi-cylindrical clamp 4 is in a semi-cylindrical shape. The two semi-cylindrical clamps 4 are aligned and assembled to clamp the stator 100. The two semi-circular flanges 4 are respectively connected to the adapter flange 1. The stator clamp 2 and the adapter flange 1 are connected as a whole. The adapter flange 1 is connected to the test frame, that is, the stator is installed on the test frame, and the radial movement of the stator during the test is limited by clamping the stator with the two semi-cylindrical clamps 4.

[0021] The upper and lower ends of the semi-cylindrical clamp 4 are provided with docking plates 6, respectively. The docking plates 6 are arranged along the axial direction and the two docking plates 6 are aligned along the radial direction. A docking hole 61 is provided on the docking plate 6. The two semi-cylindrical clamps 4 are docked and spliced ​​by the docking plates 4. The docking plates 6 at both ends of the two semi-cylindrical clamps are respectively attached together, and bolts are passed through the docking holes 61 and fastened to form the docking splicing of the two semi-cylindrical clamps 4.

[0022] The center of the adapter flange 1 is provided with a through hole 12 for the stator clamp to pass through, and the clamp positioning hole 11 is provided on the periphery of the through hole 12. The semi-cylindrical clamp 4 should first pass through the through hole 12 to make the semicircular flange fit with the adapter flange, and then butt joint and clamp the stator.

[0023] The end surface of the other end of the semi-cylindrical clamp 4 is provided with an end plate 7, and the baffle assembly 3 includes a pipe joint 8 connected to the threaded hole of the stator end surface and a baffle 9 sleeved on the pipe joint 8, and the baffle 9 is pressed against the end plate 7 as the pipe joint 8 is tightened. The pipe joint 8 is tightened in the threaded hole of the stator end surface, and the baffle 9 is pressed against the end plate 7 through the pipe joint 8, which is equivalent to connecting the stator end surface with the end plate 7 of the positioning fixture 2, and the axial movement of the stator during the test is limited by the abutment between the end plate 7 and the baffle 9.

[0024] The process of fixing the stator of an outer rotor motor using the stator fixing fixture for outer rotor motor testing described above is as follows:

[0025] First, use bolts to pass through the flange connection holes 51 and the fixture positioning holes 11 to connect the two semi-cylindrical clamps 4 to the adapter flange. The bolts are not tightened first, and the upper and lower butt joint plates 6 of the two semi-cylindrical clamps 4 are respectively abutted.

[0026] Then, the stator of the outer rotor motor is inserted into the two semi-cylindrical clamps 4, and the end surface of the stator is separated from the end plate 7 by 4-5 mm, and then the bolts in the flange connection hole 51 and the fixture positioning hole 11 are tightened.

[0027] Next, bolts are passed through the butt joint plates 6 at the upper and lower ends of the two half-tube clamps 4 to butt joint the two half-tube clamps 4 together to clamp the stator.

[0028] Afterwards, the baffle plate 9 is sleeved on the pipe joint 8, and the pipe joint 8 is screwed into the threaded hole on the end face of the stator so that the baffle plate 9 abuts against the end plate 7.

[0029] Finally, the adapter flange 1 is connected to the test frame so that the stator and the test frame are connected as a whole, thereby completing the stator fixation of the outer rotor motor.

[0030] The above is a complete description of the technical solutions of the embodiments of the utility model in combination with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Claims

1. A stator fixing fixture for testing an external rotor motor, comprising a transfer flange connected to a test frame, characterized in that: It also includes a stator clamp for clamping the stator and a baffle assembly for limiting the axial movement of the stator. The stator clamp is coaxially connected to the adapter flange, and the baffle assembly is connected to the stator end face and abuts against the end face of the stator clamp.

2. The stator fixing fixture for testing an outer rotor motor according to claim 1, characterized in that: The stator clamp comprises two semi-cylindrical clamps that are butt-jointed and clamp the stator. One end of the semi-cylindrical clamp has a semi-circular flange that is folded outward 90 degrees. The semi-circular flange is fitted with an adapter flange. A flange connection hole is provided on the semi-circular flange. A clamp positioning hole corresponding to the flange connection hole is provided on the adapter flange. Bolts pass through the flange connection hole and the clamp positioning hole to coaxially connect the positioning clamp with the adapter flange.

3. The stator fixing fixture for testing an outer rotor motor according to claim 2, characterized in that: The upper and lower ends of the semi-cylindrical clamp are respectively provided with butt joint plates, which are arranged along the axial direction and are aligned along the radial direction, and butt joint holes are provided on the butt joint plates.

4. The stator fixing fixture for testing an outer rotor motor according to claim 3, characterized in that: A through hole for the stator clamp to pass through is arranged at the center of the adapter flange, and a clamp positioning hole is arranged at the periphery of the through hole.

5. The stator fixing fixture for testing an outer rotor motor according to claim 2, characterized in that: The end surface of the other end of the semi-cylindrical clamp is provided with an end plate, and the baffle assembly comprises a pipe joint connected with the threaded hole of the stator end surface and a baffle sleeved on the pipe joint, and the baffle is pressed against the end plate as the pipe joint is tightened.

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