A shaft retaining ring mounting tool for a rotary transformer rotor.

CN224626499UActive Publication Date: 2026-08-11JIANGSU WEITELI MOTORS MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-08-11

AI Technical Summary

Benefits of technology

本实用新型提供一种用于电机旋转变压器转子的轴用挡圈安装工具,该用于电机旋转变压器转子的轴用挡圈安装工具结构简单,安装方便,操作简易,实用性强。

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Abstract

This utility model discloses a shaft retaining ring installation tool for a rotary transformer rotor, comprising a cylindrical body with a striking base plate at the bottom and an annular positioning liner on the inner wall of the head. The depth of the positioning liner is less than the thickness of the shaft retaining ring. The outer diameter of the cylindrical body is smaller than the outer diameter of the rotary transformer rotor. This shaft retaining ring installation tool for a rotary transformer rotor has a simple structure, is easy to install, simple to operate, and highly practical.
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Description

Technical Field

[0001] This utility model relates to a tool, more specifically, a tool for installing a retaining ring on the rotor of a motor rotary transformer. Background Technology

[0002] A rotary transformer is typically installed on an electric motor. It accurately and in real-time detects the rotor position, speed, and direction of rotation, converting these mechanical motion parameters into electrical signals that are transmitted to the motor's controller, thus enabling precise motor control. When installing the rotary transformer rotor, a shaft retaining ring is usually used for axial fixation. Current installation methods generally rely on manual installation, which makes it difficult to ensure the retaining ring is properly installed, increasing the difficulty of manual operation. Utility Model Content

[0003] Therefore, it is necessary to provide a shaft retaining ring mounting tool for the rotor of a motor rotary transformer to address the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A shaft retaining ring installation tool for a rotary transformer rotor of a motor is characterized in that the shaft retaining ring installation tool for a rotary transformer rotor of a motor comprises a cylindrical body, the bottom of the cylindrical body is provided with a striking base plate, and the inner wall of the head of the cylindrical body is provided with an annular positioning liner.

[0005] In a preferred embodiment of this utility model, the depth of the positioning bushing is less than the thickness of the shaft retaining ring.

[0006] In a preferred embodiment of this utility model, the outer diameter of the cylinder is smaller than the outer diameter of the rotor of the rotary transformer.

[0007] In a preferred embodiment of this utility model, the cylinder and the striking base plate are integrally formed.

[0008] Compared with the prior art, the present invention has the following beneficial effects: This utility model provides a shaft retaining ring installation tool for a rotary transformer rotor. The shaft retaining ring installation tool for a rotary transformer rotor has a simple structure, is easy to install, is easy to operate, and is highly practical. Attached Figure Description

[0009] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the shaft retaining ring installation tool for the rotor of a rotary transformer for motors according to this utility model; Figure 2 for Figure 1 A three-dimensional structural diagram of a shaft retaining ring mounting tool for a rotary transformer rotor, showing another perspective; Figure 3 for Figure 2 A cross-sectional view along line CC of a shaft retaining ring mounting tool for a rotary transformer rotor used in an electric motor. Figure 4 for Figure 3 A magnified view of the details of region D in the diagram; Figure 5 This is a schematic diagram illustrating the use of the retaining ring installation tool for this shaft; Figure 6 for Figure 5 A sectional view of the motor spindle along line AA; Figure 7 for Figure 6 A magnified view of the details of region B in the diagram; The markings in the diagram are explained as follows: 11, cylinder; 12, positioning liner; 10, shaft retaining ring installation tool for motor rotary transformer rotor; 13, striking base plate; 20, shaft retaining ring; 30, rotary transformer. Detailed Implementation

[0011] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0012] like Figures 1 to 5 As shown, the shaft retaining ring installation tool 10 for the rotor of the motor rotary transformer includes a cylindrical body 11, a striking base plate 13 at the bottom of the cylindrical body 11, and an annular positioning liner 12 on the inner wall of the head of the cylindrical body 11.

[0013] It should be noted that the depth of the positioning liner 12 is less than the thickness of the shaft retaining ring 20.

[0014] In addition, the outer diameter of the cylinder 11 is smaller than the outer diameter of the rotor of the rotary transformer 30.

[0015] In addition, the cylinder 11 and the striking base plate 13 are integrally formed.

[0016] The working method of the shaft retaining ring installation tool used for the rotor of the motor rotary transformer is described below.

[0017] like Figures 5 to 7As shown, the user first places the retaining ring 20 onto the protrusion M of the motor spindle 40, then faces the opening of the retaining ring installation tool 10 toward the retaining ring 20, and then uses a hammer to strike the base plate 13, causing the retaining ring 20 to slide past the protrusion M and engage with the pre-made retaining ring groove on the motor spindle 40. In this way, the retaining ring 20 is successfully installed.

[0018] This shaft retaining ring installation tool for motor rotary transformer rotors is simple in structure, easy to install, simple to operate, and highly practical.

[0019] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.

Claims

1. A shaft retainer installation tool for a motor resolver rotor, characterized by, The shaft retaining ring installation tool (10) for the motor resolver rotor comprises a cylindrical barrel (11), the bottom of the barrel (11) is provided with a knocking bottom plate (13), and the inner wall of the head of the barrel (11) is provided with an annular positioning lining table (12).

2. The shaft retaining ring installation tool for a motor resolver rotor according to claim 1, characterized by, The depth of the positioning lining table (12) is less than the thickness of the shaft retaining ring (20).

3. The shaft retaining ring installation tool for a motor resolver rotor according to claim 1, characterized by, The outer diameter of the barrel (11) is less than the outer diameter of the resolver rotor (30).

4. The shaft retaining ring installation tool for a motor resolver rotor according to claim 1, characterized by, The barrel (11) and the knocking bottom plate (13) are integrally formed.