阅读说明：本技术 直流无刷电机的外转子内径检测装置 (Outer rotor inner diameter detection device of direct current brushless motor ) 是由 孙豪远 江林飞 汪旭亮 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种直流无刷电机的外转子内径检测装置,包括基座,基座上方设有检测座；所述基座的中心设有中心孔,基座上还设有一组呈环形分布的支撑限位柱；所述检测座包括底座,底座上方设有两根对称分布的导轨,导轨上设有扇形座体,每个扇形座体的内侧均设有螺杆,两根螺杆之间设有调节螺母；所述底座的底部设有中心孔相配合的旋转轴,底座底面还设有与支撑限位柱相配合的圆形限位凹槽。本发明具有能够有效提高测量精度和降低工人劳动强度的特点。(The invention discloses an outer rotor inner diameter detection device of a direct current brushless motor, which comprises a base, wherein a detection seat is arranged above the base; the center of the base is provided with a central hole, and the base is also provided with a group of supporting and limiting columns which are distributed annularly; the detection seat comprises a base, two guide rails which are symmetrically distributed are arranged above the base, fan-shaped seat bodies are arranged on the guide rails, a screw is arranged on the inner side of each fan-shaped seat body, and an adjusting nut is arranged between the two screws; the bottom of base is equipped with centre bore matched with rotation axis, and the base bottom surface still is equipped with and supports spacing post matched with circular spacing recess. The invention has the characteristics of effectively improving the measurement precision and reducing the labor intensity of workers.)

1. Outer rotor internal diameter detection device of brushless DC motor, its characterized in that: comprises a base (1), a detection seat (2) is arranged above the base (1); a central hole (4) is formed in the center of the base (1), and a group of supporting and limiting columns (5) which are distributed annularly are further arranged on the base (1); the detection seat (2) comprises a base (201), two guide rails (202) which are symmetrically distributed are arranged above the base (201), fan-shaped seat bodies (203) are arranged on the guide rails (202), a screw rod (204) is arranged on the inner side of each fan-shaped seat body (203), and an adjusting nut (205) is arranged between the two screw rods (204); the bottom of base (201) is equipped with centre bore (4) matched with rotation axis (206), and base (201) bottom surface still is equipped with and supports spacing post (5) matched with circular spacing recess (207).

2. The outer rotor inner diameter detection device of a dc brushless motor according to claim 1, characterized in that: the central hole (4) is of a conical structure.

3. The outer rotor inner diameter detection device of a dc brushless motor according to claim 1, characterized in that: and the upper end of the support limiting column (5) is provided with a ball (3).

Technical Field

The invention relates to an outer rotor inner diameter detector, in particular to an outer rotor inner diameter detection device of a direct-current brushless motor.

Background

The direct current brushless motor comprises a stator, an outer rotor and other main components, wherein the outer rotor rotates around the stator, in order to avoid the phenomenon that the outer rotor and an inner stator cannot be assembled due to size, the outer rotor generally needs to carry out inner diameter detection after production is finished, and the inner stator needs to carry out outer diameter detection. For the detection of the inner diameter of the outer rotor, a vernier caliper measurement mode is generally adopted in the market, and as the vernier caliper can only measure the diameter between two points inside the outer rotor, a certain measurement error exists, and finally, a measurement value needs to be read manually, and a certain reading error also exists; meanwhile, the labor intensity of workers is also high by adopting the mode. Therefore, the prior art has the problems of low measurement precision and high labor intensity.

Disclosure of Invention

The invention aims to provide an inner diameter detection device for an outer rotor of a brushless direct current motor. The invention has the characteristics of effectively improving the measurement precision and reducing the labor intensity of workers.

The technical scheme of the invention is as follows: the inner diameter detection device of the outer rotor of the brushless DC motor comprises a base, wherein a detection seat is arranged above the base; the center of the base is provided with a central hole, and the base is also provided with a group of supporting and limiting columns which are distributed annularly; the detection seat comprises a base, two guide rails which are symmetrically distributed are arranged above the base, fan-shaped seat bodies are arranged on the guide rails, a screw is arranged on the inner side of each fan-shaped seat body, and an adjusting nut is arranged between the two screws; the bottom of base is equipped with centre bore matched with rotation axis, and the base bottom surface still is equipped with and supports spacing post matched with circular spacing recess.

In the inner diameter detection device of the outer rotor of the dc brushless motor, the central hole has a tapered structure.

In the inner diameter detection device of the outer rotor of the brushless dc motor, the upper end of the support limit column is provided with a ball.

Compared with the prior art, the invention is composed of the base and the detection seat, the detection seat and the base are in rotary connection, the size of the detection seat corresponds to the inner diameter of the outer rotor, the detection of the inner diameter of the outer rotor can be completed only by placing the outer rotor outside the detection seat and rotating the detection seat, the structure is simple, the operation is convenient, the inner diameter of the outer rotor can be completely detected, the detection precision is improved, the detection efficiency can be effectively improved, and the labor intensity of workers is reduced; meanwhile, the detection seat of the invention is composed of a base, a guide rail, fan-shaped seat bodies, a screw rod and an adjusting nut, and the distance between the two fan-shaped seat bodies is completed by the rotation of the adjusting nut, so that the detection seat can adapt to outer rotors with different sizes, and the application range is expanded. In conclusion, the invention has the characteristics of effectively improving the measurement precision and reducing the labor intensity of workers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial cross-sectional view of the base and test seat;

FIG. 3 is a top view of the fan housing;

FIG. 4 is a top view of the base;

fig. 5 is a bottom view of the base.

The labels in the figures are: 1-base, 2-detection seat, 3-ball, 4-central hole, 5-support limit column, 201-base, 202-guide rail, 203-fan-shaped seat body, 204-screw rod, 205-adjusting nut, 206-rotating shaft and 207-circular limit groove.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.