Novel integrated rotary transformer performance detection tool
Through the modular design of the mounting plate and ring plate, the problem of coaxial deviation of the stator rotor in high-precision rotation test is solved, and rapid installation, disassembly and efficient detection is achieved, magnetic field interference is avoided, and the accuracy and efficiency of the rotation test are improved.
Patent Information
- Application Number
- CN202422540726.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In existing high-precision rotary test equipment, the coaxial deviation of the stator and rotor installation affects the test accuracy, manual adjustment is cumbersome and inefficient, making it difficult to achieve rapid replacement and simplified debugging.
The installation plate and ring plate design are adopted, and the modular assembly of concentric grooves, rotor pillars, support plates and stator pillars can achieve rapid preliminary positioning and convenient disassembly of the rotor and stator, and the magnetic field interference is used to avoid magnetic field interference and improve detection accuracy and efficiency.
It realizes rapid installation and disassembly of high-precision rotary tests, simplifies the replacement process, improves detection accuracy and efficiency, and avoids the impact of magnetic fields on test accuracy.
Smart Images

Figure CN223204908U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detection tooling, and specifically relates to a novel integrated rotary transformer performance detection tooling. Background Art
[0002] With the continuous advancement of measurement and control technology both domestically and internationally, the rise of the high-precision servo motor and high-precision robot markets, and the increasing use of resolvers in the military-to-civilian transition, high-precision resolver testing equipment is becoming increasingly important. However, the most widely used resolvers are mostly composed of two separate parts: the stator and rotor. During installation, any misalignment between the stator and rotor can significantly impact test accuracy. Therefore, applications requiring high precision, such as high-precision resolver testing equipment and precision servo motors, place stringent requirements on the coaxiality of the resolver's stator and rotor installation. Traditionally, high-precision resolver testing has relied on manual coaxial adjustment, which has resulted in poor accuracy, cumbersome operation, and limited efficiency.
[0003] According to application number: 202010181187.5, a tool for automatic centering and adjustment of a rotary transformer is disclosed, which includes a rotary transformer stator bracket for mounting the rotary transformer stator, a rotary transformer rotor bracket for mounting the rotary transformer rotor, an eccentricity measurement mechanism, and an automatic horizontal translation stage. The stator-rotor air gap is between the inner edge of the rotary transformer stator and the outer edge of the rotor. The eccentricity measurement mechanism is installed above the rotary transformer rotor bracket and rotates with the rotor of the rotary transformer with the center of the rotary transformer rotor bracket as the center of the circle to complete the measurement of the eccentricity of the rotary transformer stator and the rotary transformer rotor. The beneficial effects are: no human intervention is required during the measurement and adjustment of the coaxiality of the rotary transformer stator and rotor, which eliminates human errors and improves measurement accuracy; by converting the coaxiality measurement results of the stator and rotor into a control signal, the automatic horizontal translation stage is driven to perform automatic centering adjustment, thereby improving the accuracy and efficiency of the adjustment.
[0004] In the above patent, the stator and rotor brackets have no positioning, and each time the model is changed, it needs to be installed by a meter. The installation process is cumbersome and inefficient, and it is not convenient to simplify the replacement and facilitate the debugging process. Utility Model Content
[0005] The purpose of the utility model is to provide a novel integrated rotary transformer performance detection tool to solve the installation, disassembly and positioning installation problems in the prior art.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A novel integrated rotary transformer performance testing tool comprises a mounting plate and a circular ring plate. The mounting plate is provided with a concentric groove, a rotor support is installed inside the concentric groove, a support plate is provided at the bottom end of one side of the rotor support, and the support plate is supported on the surface of the mounting plate. The inner diameter of the circular ring plate is sleeved on the outer diameter of the support plate, and the stator support is installed on the circular ring plate.
[0008] Furthermore, the mounting plate is provided with a plurality of mounting holes, and the support plate is provided with a plurality of countersunk grooves that mate concentrically with the mounting holes. For stable installation of the rotor strut, the countersunk grooves are concentrically aligned with the mounting holes, and the inner walls of the mounting holes are threaded, allowing bolts to further stabilize the installation of the rotor strut.
[0009] Furthermore, an extension platform is provided below the rotor support, which cooperates with the concentric groove. When installing the rotor support, the extension platform and the concentric groove cooperate to achieve a preliminary positioning effect, conveniently maintaining the rotor support concentrically aligned with the mounting plate, and also facilitates the concentric positioning of the countersunk groove and the mounting hole.
[0010] Furthermore, the stator struts are provided with a stepped platform at their bottom ends. When the stator struts and the circular plate are engaged, the stepped platform rests on the surface of the circular plate, providing initial positioning for the stator struts. To remove and replace the internal rotor struts, simply lift the circular plate upward, which in turn moves the stator struts synchronously, allowing for simultaneous removal of the stator struts. The circular plate not only facilitates the initial positioning of both the support plate and the stator struts, but also facilitates overall disassembly, improving inspection accuracy and efficiency.
[0011] Furthermore, the mounting plate and annular plate are made of non-magnetic metal. Non-magnetic metal materials, such as non-magnetic steel, generate little or no magnetism in a magnetic field. This property enables them to maintain stable performance in magnetic fields, preventing additional magnetic effects caused by field fluctuations and thus avoiding magnetic field interference. This effectively prevents the impact of tooling on resolver testing accuracy.
[0012] The technical solution of this utility model has the following beneficial effects:
[0013] 1. By adding a mounting plate and a circular ring plate, the mounting plate is used to quickly and preliminarily position the rotor struts, the circular ring plate acts on the preliminary positioning of the support plate and the stator struts, and at the same time plays the role of convenient overall disassembly.
[0014] 2. The overall system adopts a modular assembly method, and the connections between various components are relatively independent, which simplifies replacement and facilitates the debugging process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.
[0016] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present utility model.
[0017] Figure 2 This is a schematic diagram of the split structure of the utility model.
[0018] Figure 3 It is a top view of the utility model.
[0019] Figure 4 It is the AA cross-sectional view of the present invention.
[0020] Figure 5 This is a planar cross-sectional view of the stator support of the present utility model.
[0021] Figure numerals: 10, mounting plate; 101, mounting hole; 102, concentric groove; 11, rotor support; 111, support plate; 112, extension platform; 113, countersunk groove; 12, annular plate; 13, stator support; 131, stepped platform. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0023] Example 1:
[0024] refer to Figure 1 and Figure 2 A new type of integrated rotary transformer performance testing tool includes a mounting plate 10 and a circular ring plate 12. The mounting plate 10 is penetrated by a concentric groove 102. A rotor support 11 is installed inside the concentric groove 102. A support plate 111 is provided at the bottom end of one side of the rotor support 11. The support plate 111 is supported on the surface of the mounting plate 10, wherein the inner diameter of the circular ring plate 12 is sleeved on the outer diameter of the support plate 111, and a stator support 13 is installed on the circular ring plate 12.
[0025] In the above scheme, the mounting plate 10 is provided with multiple countersunk holes through its surface. The mounting plate 10 is then fixed to the motor shaft plate by screws inserted into the countersunk holes. The rotor struts 11 are then positioned and installed within the concentric grooves 102. The stator struts 13 are then mounted on the annular plate 12. Finally, the inner diameter of the annular plate 12 is fitted over the outer diameter of the support plate 111 to complete the installation and positioning. This modular assembly approach allows for relatively independent connections between components, simplifying replacement and facilitating commissioning.
[0026] Further references Figure 1 and Figure 4 The mounting plate 10 has a plurality of mounting holes 101 formed on its surface, and the support plate 111 has a plurality of countersunk grooves 113 concentrically aligned with the mounting holes 101. To ensure stable installation of the rotor strut 11, the countersunk grooves 113 are concentrically aligned with the mounting holes 101. The inner wall of the mounting hole 101 has threads, which are used to further stabilize the installation of the rotor strut 11 by bolts.
[0027] Further references Figure 4 An extension platform 112 is provided below the rotor support 11, which cooperates with the concentric groove 102. When installing the rotor support 11, the cooperation between the extension platform 112 and the concentric groove 102 provides a preliminary positioning effect, facilitating the concentric alignment of the rotor support 11 with the mounting plate 10. This also facilitates the concentric alignment of the countersunk groove 113 with the mounting hole 101.
[0028] Further references Figure 4 and Figure 5 The stator struts 13 are provided with a stepped platform 131 at their bottom ends. When the stator struts 13 and the annular plate 12 are in engagement, the stepped platform 131 rests on the surface of the annular plate 12, thereby providing preliminary positioning for the stator struts 13. When the internal rotor struts 11 need to be removed and replaced, the annular plate 12 only needs to be lifted upward, which will drive the stator struts 13 to move synchronously. This allows the stator struts 13 to be removed simultaneously with the annular plate 12. The annular plate 12 serves to provide preliminary positioning for both the support plate 111 and the stator struts 13, while also facilitating overall disassembly and improving inspection accuracy and efficiency.
[0029] Furthermore, the mounting plate 10 and annular plate 12 are made of non-magnetic metal. Non-magnetic metal materials, such as non-magnetic steel, generate little or no magnetism in a magnetic field. This property enables them to maintain stable performance in a magnetic field environment, preventing additional magnetic effects caused by changes in the magnetic field, thereby avoiding magnetic field interference. This effectively prevents the impact of tooling on resolver testing accuracy.
[0030] The specific implementation process of this embodiment is as follows:
[0031] The surface of the mounting plate 10 is provided with multiple countersunk holes, and the mounting plate 10 is punched and fixed to the motor shaft plate, and the mounting plate 10 is fastened to the motor shaft plate by screws entering the countersunk holes; then the rotor support 11 is placed in the concentric groove 102 for positioning and installation, and the extension platform 112 cooperates with the concentric groove 102 to achieve a preliminary positioning effect, which is convenient for keeping the rotor support 11 concentrically aligned with the mounting plate 10; it also facilitates the concentric cooperation and positioning of the countersunk groove 113 and the mounting hole 101; then the stator support 13 is installed on the circular ring plate 12, and the stepped platform 131 will support the surface of the circular ring plate 12 to preliminarily position the installation of the stator support 13; finally, the inner diameter of the circular ring plate 12 is sleeved on the outer diameter of the support plate 111 to complete the installation and positioning, thereby improving the detection accuracy and detection efficiency; this factory's products can be used for testing single-pole, multi-pole, single-channel, and multi-channel rotating transformers, and realize the output value test of each angle sampling of the rotating transformer.
[0032] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Various modifications or equivalent substitutions may be made to the present invention within the spirit and scope of protection of the present invention. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.
[0033] In the description of this utility model, it should be noted that the terms "inner," "front," "back," "left," and "right" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the enclosed circles, or are the directions or positional relationships in which the utility model product is typically placed when in use. They are used solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, these terms indicating directions or positional relationships should not be construed as limiting this utility model.
[0034] It should be further noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, these terms may refer to fixed, removable, or integral connections between components; they may also refer to mechanical or electrical connections; and they may also refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this invention based on the specific circumstances.
Claims
1. A new type of integrated rotary transformer performance testing tool, characterized by: The invention comprises a mounting plate (10) and a circular ring plate (12), wherein a concentric groove (102) is provided through the mounting plate (10), a rotor support (11) is installed inside the concentric groove (102), a support plate (111) is provided at the bottom end of one side of the rotor support (11), and the support plate (111) is supported on the surface of the mounting plate (10), wherein the inner diameter of the circular ring plate (12) is sleeved on the outer diameter of the support plate (111), and a stator support (13) is installed on the circular ring plate (12).
2. The novel integrated rotary transformer performance testing tool according to claim 1 is characterized in that: The surface of the mounting plate (10) is provided with a plurality of mounting holes (101), and the support plate (111) is provided with a plurality of countersunk grooves (113) coaxially matched with the mounting holes (101).
3. The novel integrated rotary transformer performance testing tool according to claim 2 is characterized in that: An extension platform (112) is provided below the rotor support (11), wherein the extension platform (112) and the concentric groove (102) cooperate with each other.
4. The novel integrated rotary transformer performance testing tool according to claim 3 is characterized in that: The bottom end of the stator support (13) is provided with a stepped platform (131).
5. The novel integrated rotary transformer performance testing tool according to claim 1 is characterized in that: The mounting plate (10) and the annular plate (12) are made of non-magnetic metal material.
Citation Information
Patent Citations
Automatic centering adjustment tool for rotary transformer
CN111288952A