Reluctance type rotary transformer rotor test tool
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing technology, rotor testing of reluctance rotary transformers needs to be carried out after the overall assembly, which can easily lead to waste of stator and other components due to non-standard rotors.
A test fixture for a reluctance rotary transformer rotor is designed, including a base, a motor, a coaxial fixing device, a reluctance rotary transformer stator assembly, and a transfer positioning structure. The rotor to be tested is fixed by the lifting structure, the coaxial fixing device, and the transfer positioning structure, and the working state is simulated for pre-testing to avoid non-standard rotor assembly.
This enables pre-testing of the rotor, preventing unqualified rotors from being used in assembly, reducing waste of the stator and other components, and improving the accuracy and reliability of testing.
Smart Images
Figure CN224081665U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rotary transformer technology, and in particular to a rotor testing fixture for a reluctance rotary transformer. Background Technology
[0002] In the field of rotary transformers, reluctance rotary transformers have the advantages of reliability, simple structure, and ease of manufacturing, and are widely used in applications requiring high reliability, such as new energy vehicles. The excitation winding and output winding of a reluctance rotary transformer are both located on the stator. Through a special concave-convex design of the rotor shape, the air gap becomes uneven, resulting in a magnetic field that changes with the rotation angle and air gap permeability. This causes the air gap magnetic field to change in the same way, allowing the output winding to output a sine or cosine signal.
[0003] The special shape design requires extremely high accuracy in the rotor's shape and size. Traditional testing involves testing the entire assembled reluctance rotary transformer. If it fails, the entire unit is considered defective, which easily leads to the waste of standard stators and other components. Therefore, it is necessary to test the rotor in advance.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] This application provides a test fixture for a reluctance rotary transformer rotor, which at least to a certain extent provides a fixture that can pre-test the rotor of the reluctance rotary transformer, thereby avoiding the participation of non-standard rotors in the assembly of the reluctance rotary transformer and reducing the waste of stator and other accessories.
[0006] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.
[0007] According to one aspect of this application, a test fixture for a reluctance rotary transformer rotor is provided, comprising: a base, a motor, a coaxial fixing device, a reluctance rotary transformer stator assembly, and a transition positioning structure; wherein, the base has a lifting structure, the top of the lifting structure has a motor slot, and the motor is disposed in the motor slot; the coaxial fixing device is disposed on the base, and the coaxial fixing device includes a first connecting portion; the reluctance rotary transformer stator assembly includes a second connecting portion, the first connecting portion and the second connecting portion are detachably connected, and the axis of the reluctance rotary transformer stator assembly is the same as that of the drive shaft of the motor; one end of the transition positioning structure is connected to the top of the drive shaft, and the other end is used to connect to the bottom of the reluctance rotary transformer rotor.
[0008] By configuring the transfer positioning structure, the bottom of the rotor under test (the rotor of the reluctance rotary transformer, hereinafter referred to as the rotor) can be fixed, so that the rotor under test can rotate with the motor, simulating the working state of the reluctance rotary transformer, thereby testing the rotor under test and detecting whether the rotor under test meets the standard. This can prevent non-standard rotors from participating in the overall assembly of the reluctance rotary transformer, thereby reducing the waste of the stator and other components.
[0009] Furthermore, the stator assembly of the reluctance rotary transformer (hereinafter referred to as the stator assembly) has the same axis as the drive shaft of the motor, which allows the rotor to be tested to be directly set on the transfer positioning structure from the axial cavity of the stator assembly, making it convenient to set the rotor to be tested on the tooling.
[0010] Furthermore, by setting the first connecting part and the second connecting part to be detachably connected, the tooling can be configured with different stator assemblies, thereby allowing for testing of different models of rotors.
[0011] Furthermore, by setting up a lifting structure, the rotor to be tested can be easily set up.
[0012] Furthermore, by setting up motor slots, the motor's position on the base can be made more stable and less prone to shaking, thereby making the test results of the rotor under test more accurate and reliable.
[0013] In one embodiment of this application, the coaxial fixing device includes a plurality of first connecting parts, which are coaxially arranged and the distances from different first connecting parts to the axis are different.
[0014] By configuring multiple first connecting parts and setting them coaxially, the types and sizes of stator assemblies that can be configured in the tooling can be more diverse, thereby enabling testing of more types and models of rotors.
[0015] In one embodiment of this application, it further includes a speed regulating device, which is electrically connected to the motor.
[0016] By configuring a speed adjustment device, the performance of the rotor under test at different speeds can be tested, so as to comprehensively test the rotor under test.
[0017] In one embodiment of this application, it further includes: a support column and a limiting structure; the support column is disposed on the base, and the limiting structure is disposed on the support column, the limiting structure being used to fix the top of the rotor of the reluctance rotary transformer in the radial direction.
[0018] By configuring support columns and limiting structures, the position of the rotor under test can be further guaranteed during testing, avoiding rotor swaying and thus ensuring the accuracy and reliability of the test.
[0019] In one embodiment of this application, the limiting structure includes: a telescopic crossbar, a bearing, and a positioning rod; the telescopic crossbar is rotatably connected to the support column; the bearing is fixedly disposed at one end of the telescopic crossbar away from the support column and is in the same direction as the axis of the reluctance rotary transformer rotor; one end of the positioning rod is fixedly connected to the shaft of the bearing, and the other end is detachably connected to the top of the reluctance rotary transformer rotor.
[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0022] Figure 1 A schematic diagram of a magnetoresistive rotary transformer rotor testing fixture is shown in one embodiment of this application;
[0023] Figure 2 A schematic diagram of a reluctance rotary transformer stator assembly according to one embodiment of this application is shown;
[0024] Figure 3 A schematic diagram of a coaxial fixing device in one embodiment of this application is shown. Detailed Implementation
[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0026] Furthermore, the accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore, repeated descriptions of them will be omitted. It should be noted that the concepts of "first," "second," etc., mentioned in this application are only used to distinguish different connecting parts.
[0027] The reluctance rotary transformer rotor testing fixture in one embodiment of this application can be used as follows: Figure 1-3 As shown, the rotor testing fixture for the reluctance rotary transformer includes: a base 1, a motor 2, a coaxial fixing device 3, a stator assembly of the reluctance rotary transformer 4, and a transfer positioning structure 5.
[0028] The base 1 has a lifting structure 11, and the top of the lifting structure 11 has a motor slot 111, in which the motor 2 is installed.
[0029] The coaxial fixing device 3 is mounted on the base 1, and the coaxial fixing device 3 includes a first connecting part 31.
[0030] The stator assembly 4 of the reluctance rotary transformer includes a second connecting part 41, and the first connecting part 31 and the second connecting part 41 are detachably connected. The stator assembly 4 of the reluctance rotary transformer has the same axis as the drive shaft 21 of the motor 2.
[0031] One end of the adapter positioning structure 5 is connected to the top of the drive shaft 21, and the other end is used to connect to the bottom of the rotor of the reluctance rotary transformer.
[0032] By configuring the transfer positioning structure, the bottom of the rotor under test (the rotor of the reluctance rotary transformer, hereinafter referred to as the rotor) can be fixed, so that the rotor under test can rotate with the motor, simulating the working state of the reluctance rotary transformer, thereby testing the rotor under test and detecting whether the rotor under test meets the standard. This can prevent non-standard rotors from participating in the overall assembly of the reluctance rotary transformer, thereby reducing the waste of the stator and other components.
[0033] Furthermore, the stator assembly of the reluctance rotary transformer (hereinafter referred to as the stator assembly) has the same axis as the drive shaft of the motor, which allows the rotor to be tested to be directly set on the transfer positioning structure from the axial cavity of the stator assembly, making it convenient to set the rotor to be tested on the tooling.
[0034] Furthermore, by setting the first connecting part and the second connecting part to be detachably connected, the tooling can be configured with different stator assemblies, thereby allowing for testing of different models of rotors.
[0035] Furthermore, by setting up a lifting structure, the rotor to be tested can be easily set up.
[0036] Furthermore, by setting up motor slots, the motor's position on the base can be made more stable and less prone to shaking, thereby making the test results of the rotor under test more accurate and reliable.
[0037] In one embodiment, such as Figure 3As shown, the coaxial fixing device 3 includes a plurality of first connecting parts 31, which are coaxially arranged, and the distances from different first connecting parts 31 to the axis are different.
[0038] It should be noted that, Figure 3 In the diagram, only the first connecting part 31 of the coaxial fixing device 3 is shown.
[0039] By configuring multiple first connecting parts and setting them coaxially, the types and sizes of stator assemblies that can be configured in the tooling can be more diverse, thereby enabling testing of more types and models of rotors.
[0040] In one embodiment, the rotor testing fixture for a reluctance rotary transformer further includes a speed regulating device, which is electrically connected to the motor.
[0041] By configuring a speed adjustment device, the performance of the rotor under test at different speeds can be tested, so as to comprehensively test the rotor under test.
[0042] In one embodiment, the rotor testing fixture for a reluctance rotary transformer further includes: a support column 6 and a limiting structure 7.
[0043] The support column 6 is mounted on the base 1, and the limiting structure 7 is mounted on the support column 6. The limiting structure 7 is used to fix the top of the reluctance rotary transformer rotor in the radial direction.
[0044] By configuring support columns and limiting structures, the position of the rotor under test can be further guaranteed during testing, avoiding rotor swaying and thus ensuring the accuracy and reliability of the test.
[0045] In one embodiment, the limiting structure 7 includes: a telescopic crossbar 71, a bearing 72, and a positioning rod 73.
[0046] The telescopic crossbar 71 is rotatably connected to the support column 6.
[0047] The bearing 72 is fixedly installed at the end of the telescopic crossbar 71 away from the support column 6, and is in the same direction as the axis of the rotor of the reluctance rotary transformer.
[0048] One end of the positioning rod 73 is fixedly connected to the shaft of the bearing 72, and the other end is detachably connected to the top of the rotor of the reluctance rotary transformer.
[0049] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the appended claims.
Claims
1. A magnetic reluctance resolver rotor test fixture, characterized by, The utility model relates to a magnetic resistance type rotary transformer stator assembly, and specifically relates to a magnetic resistance type rotary transformer stator assembly and a magnetic resistance type rotary transformer rotor. It comprises a base (1), a motor (2), a coaxial fixing device (3), a magnetic resistance type rotary transformer stator assembly (4) and a switching positioning structure (5). The base (1) has a lifting structure (11), and the top of the lifting structure (11) has a motor slot (111), wherein the motor (2) is arranged in the motor slot (111). The coaxial fixing device (3) is arranged on the base (1), and the coaxial fixing device (3) comprises a first connecting part (31). The magnetic resistance type rotary transformer stator assembly (4) comprises a second connecting part (41), the first connecting part (31) and the second connecting part (41) are detachably connected, and the magnetic resistance type rotary transformer stator assembly (4) has the same axis as the transmission shaft (21) of the motor (2). One end of the switching positioning structure (5) is connected to the top of the transmission shaft (21), and the other end is used for connecting the bottom of the magnetic resistance type rotary transformer rotor.
2. The magnetoresistive resolver rotor test fixture of claim 1, wherein, The coaxial fixing device (3) comprises a plurality of first connecting parts (31), the plurality of first connecting parts (31) are arranged coaxially, and the distances from different first connecting parts (31) to the axis are different.
3. The magnetoresistive resolver rotor test fixture of claim 1, wherein, It further comprises a rotating speed adjusting device, which is electrically connected with the motor. It further comprises a supporting column (6) and a limiting structure (7).
4. The magnetoresistive resolver rotor test fixture of claim 1, wherein, The supporting column (6) is arranged on the base (1), and the limiting structure (7) is arranged on the supporting column (6), and the limiting structure (7) is used for fixing the top of the magnetic resistance type rotary transformer rotor in the radial direction. The limiting structure (7) comprises a telescopic cross rod (71), a bearing (72) and a positioning rod (73). The telescopic cross rod (71) is rotationally connected to the supporting column (6).
5. The magnetoresistive resolver rotor test fixture of claim 4, wherein, The bearing (72) is fixedly arranged at one end of the telescopic cross rod (71) away from the supporting column (6) and has the same axial direction as the magnetic resistance type rotary transformer rotor. One end of the positioning rod (73) is fixedly connected to the rotating shaft of the bearing (72), and the other end is detachably connected to the top of the magnetic resistance type rotary transformer rotor.