Outer rotor permanent magnet synchronous motor fixing device
By designing an external rotor permanent magnet synchronous motor fixing device including a base plate, a large vertical plate and a small vertical plate, the coordination of the positioning slot and the clamping strip is used to solve the problem of difficulty in fixing the motor during the test, and a high-precision test effect is achieved.
Patent Information
- Application Number
- CN202421277989.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The outer rotor permanent magnet synchronous motor is difficult to effectively fix during the test, which affects the test accuracy.
The fixing device including the base plate, large vertical plate and small vertical plate is adopted. Through the coordination of the positioning slot and the positioning clip, the motor and the dynamometer are ensured to be coaxial, and supported and fixed by supporting bearings and tightening sleeves.
It improves the coaxiality between the motor and the dynamometer, improves the testing accuracy, is simple in structure and strong practicality.
Smart Images
Figure CN223139612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a motor testing device, and more precisely, to a fixing device for an outer rotor permanent magnet synchronous motor. Background Art
[0002] The outer rotor permanent magnet synchronous motor is a new type of motor and is relatively rare in the market. The outside of this motor is a rotating permanent magnet rotor, and the inside is a fixed winding stator. During the testing process, it is very difficult to effectively fix it. Content of the Utility Model
[0003] Based on this, it is necessary to provide a fixing device for an outer rotor permanent magnet synchronous motor in view of the above technical problems.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A fixing device for an outer rotor permanent magnet synchronous motor, characterized in that the fixing device for the outer rotor permanent magnet synchronous motor comprises a bottom plate, a pair of large vertical plates and a small vertical plate are arranged on the bottom plate, the large vertical plates and the small vertical plate are arranged in parallel, and the arrangement direction of the large vertical plates is perpendicular to the bottom plate.
[0006] A number of rectangular positioning slots are arranged on the bottom plate, a bottom plate screw hole is arranged on both sides of the positioning slot, and a detachable positioning strip is arranged in the positioning slot.
[0007] A through first round hole is arranged at the upper part of the large vertical plate, a support bearing is arranged in the first round hole, a pair of first fixing screw holes are arranged at the bottom of the large vertical plate, a first positioning notch is arranged at the center of the bottom of the large vertical plate, and the first positioning notch is matched with the positioning strip.
[0008] A through second round hole is arranged at the upper part of the small vertical plate, a tension sleeve is arranged in the second round hole, a pair of second fixing screw holes are arranged at the bottom of the small vertical plate, a second positioning notch is arranged at the center of the bottom of the small vertical plate, and the second positioning notch is matched with the positioning strip.
[0009] As a preferred embodiment of the utility model, the first fixing screw hole, the second positioning notch and the bottom plate screw hole are connected by screws.
[0010] As a preferred embodiment of the utility model, the positioning slots are arranged linearly.
[0011] As a preferred embodiment of the utility model, the positioning strip is in a long strip shape.
[0012] As a preferred embodiment of the present utility model, the tensioning sleeve is a "C"-shaped tensioning sleeve.
[0013] Compared with the prior art, the present utility model has the following beneficial effects:
[0014] The present utility model provides a fixing device for an outer-rotor permanent magnet synchronous motor. Since the large vertical plate and the small vertical plate are both in keyway-oriented fit with the bottom plate, the coaxiality of the overall motor and the dynamometer is effectively guaranteed, thereby improving the test accuracy. The structure is simple and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0016] Figure 1 It is a three-dimensional structural schematic diagram of the fixing device for the outer-rotor permanent magnet synchronous motor of the present utility model;
[0017] Figure 2 is Figure 1 a three-dimensional structural exploded schematic diagram of the fixing device for the outer-rotor permanent magnet synchronous motor in
[0018] Figure 3 is Figure 2 a detailed enlarged schematic diagram of area A in
[0019] Figure 4 is Figure 2 a three-dimensional structural schematic diagram of the large vertical plate of the fixing device for the outer-rotor permanent magnet synchronous motor in
[0020] Figure 5 is Figure 2 a three-dimensional structural schematic diagram of the small vertical plate of the fixing device for the outer-rotor permanent magnet synchronous motor in
[0021] Figure 6 is Figure 1 a usage schematic diagram of the fixing device for the outer-rotor permanent magnet synchronous motor in
[0022] The reference signs in the drawings are explained as follows: 1, bottom plate; 11, positioning card slot; 121, bottom plate screw hole; 2, large vertical plate; 20, support bearing; 22, first fixing screw hole; 23, first positioning notch; 3, small vertical plate; 30, tensioning sleeve; 31, first round hole; 32, second fixing screw hole; 33, second positioning notch; 5, positioning strip. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.
[0024] As Figures 1 to 5 shown, the fixing device of the outer rotor permanent magnet synchronous motor includes a bottom plate 1, on which there are a pair of large vertical plates 2 and a small vertical plate 3. The large vertical plates 2 and the small vertical plate 3 are arranged in parallel, and the arrangement direction of the large vertical plates 2 is perpendicular to the bottom plate 1.
[0025] The bottom plate 1 is provided with a number of rectangular positioning card slots 11. On both sides of the positioning card slots 11, there is a bottom plate screw hole 121, and a detachable positioning card strip 5 is arranged in the positioning card slots 11.
[0026] It should be noted that the positioning card strip 5 is in a long strip shape. The positioning card slots 11 are arranged linearly.
[0027] As Figure 4 shown, at the upper part of the large vertical plate 2, there is a through first round hole 31, in which there is a support bearing 20. At the bottom of the large vertical plate 2, there are a pair of first fixing screw holes 22. At the center of the bottom of the large vertical plate 2, there is a first positioning notch 23, which is matched with the positioning card strip 5.
[0028] As Figure 5 shown, at the upper part of the small vertical plate 3, there is a through second round hole 31, in which there is a tensioning sleeve 30. At the bottom of the small vertical plate 3, there are a pair of second fixing screw holes 32. At the center of the bottom of the small vertical plate 3, there is a second positioning notch 33, which is matched with the positioning card strip 5.
[0029] It should be noted that the first fixing screw holes 22, the second positioning notch 33 and the bottom plate screw holes 121 are connected by screws.
[0030] In addition, the tensioning sleeve 30 is a "C"-shaped tensioning sleeve.
[0031] The usage method of the fixing device of the outer rotor permanent magnet synchronous motor will be described below.
[0032] As Figure 6 shown, connect the outer permanent magnet rotor 4 of the outer rotor permanent magnet synchronous motor with the transmission flange 5, and make the outer wall of the transmission flange 5 be supported by the corresponding support bearing 20. At the same time, make the annular end face 41 of the outer permanent magnet rotor 4 be supported by another support bearing 20.
[0033] It should be noted that the transmission flange 5 is connected with an external dynamometer, and the dynamometer drives the transmission flange 5.
[0034] In addition, the inner stator shaft 6 of the outer rotor permanent magnet synchronous motor is passed through the expansion sleeve 30, and the expansion sleeve 30 is locked.
[0035] Finally, start the dynamometer to test the outer rotor permanent magnet synchronous motor.
[0036] Since the large vertical plate 2 and the small vertical plate 3 are both in keyway-oriented fit with the bottom plate 1, the coaxiality of the whole motor and the dynamometer is effectively guaranteed, thereby improving the test accuracy. The structure is simple and the practicability is strong.
[0037] Without being limited thereto, any changes or substitutions that are conceived without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims
1. A fixing device for an outer-rotor permanent magnet synchronous motor, characterized in that, The described external-rotor permanent magnet synchronous motor fixing device includes a bottom plate (1). A pair of large vertical plates (2) and a small vertical plate (3) are provided on the bottom plate (1). The large vertical plates (2) and the small vertical plate (3) are arranged in parallel. The setting direction of the large vertical plates (2) is perpendicular to the bottom plate (1). A number of rectangular positioning card slots (11) are provided on the bottom plate (1). A bottom plate screw hole (121) is provided on both sides of the positioning card slot (11). A detachable positioning card strip (5) is provided in the positioning card slot (11). An upper part of the large vertical plate (2) is provided with a through first round hole (31). A support bearing (20) is provided in the first round hole (31). A pair of first fixing screw holes (22) are provided at the bottom of the large vertical plate (2). A first positioning notch (23) is provided at the center of the bottom of the large vertical plate (2). The first positioning notch (23) is matched with the positioning card strip (5). An upper part of the small vertical plate (3) is provided with a through second round hole (31). A tension sleeve (30) is provided in the second round hole (31). A pair of second fixing screw holes (32) are provided at the bottom of the small vertical plate (3). A second positioning notch (33) is provided at the center of the bottom of the small vertical plate (3). The second positioning notch (33) is matched with the positioning card strip (5).
2. The fixing device of the outer-rotor permanent magnet synchronous motor according to claim 1, characterized in that, The first fixing screw holes (22), the second positioning notch (33) and the bottom plate screw holes (121) are connected by screws.
3. The fixing device of the outer-rotor permanent magnet synchronous motor according to claim 1, wherein, The positioning card slots (11) are arranged linearly.
4. The fixing device of the outer rotor permanent magnet synchronous motor according to claim 1, characterized in that, The positioning card strip (5) is strip-shaped.
5. The fixing device for an outer-rotor permanent magnet synchronous motor according to claim 1, wherein The tension sleeve (30) is a "C"-shaped tension sleeve.