Testing device for rotary transformer

Abstract

The utility model discloses a testing device for a rotary transformer, and relates to the technical field of rotary transformer detection, the testing device comprises a deflection assembly used for testing the deflection sensitivity of the rotary transformer, the deflection assembly drives a clamping assembly to rotate at multiple angles, the detection of the deflection sensitivity of the rotary transformer is improved, and the clamping assembly is arranged on the deflection assembly. The clamping assembly clamps the rotary transformer, the clamping assembly carries out vibration detection on the rotary transformer and detects whether the rotary transformer generates abnormal sound or not in the working process, the clamping assembly is provided with a monitoring camera and an ejection column, and when dangerous conditions such as position deviation and assembly looseness occur in the rotary transformer detection process, the ejection column is ejected out of the monitoring camera. And the rotary transformer is quickly pushed out by the ejection column, so that damage to equipment and personnel is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of testing devices for rotary transformer, in particular to a kind of testing devices for rotary transformer. BACKGROUND

[0002] Rotary transformer is a kind of electrical equipment, is widely used in the occasion needing to be effectively connected between rotary motion and electrical signal conversion. Its main role is to convert the motion information (angle or position etc.) on rotary machinery (such as motor, generator etc.) into electrical signal, and the working principle of rotary transformer is similar to ordinary transformer, but its particularity is that it can work under the condition of rotation.

[0003] Rotary transformer is often used in position feedback, angle measurement, servo control system, for converting mechanical movement into electrical signal. Before shipment, rotary transformer is detected and deflection sensitivity is detected, which is the key step to ensure its normal operation and accurate performance, and rotary transformer will generate output signal with the rotation of mechanical shaft in actual working process. Through rotation detection, it can be ensured that the transformer can accurately generate electrical signal under different rotating speeds and different angles. If rotation detection is unqualified, the transformer may not accurately track the rotation state of the machine, thereby affecting the precision and stability of the control system. In practical application, rotary transformer may encounter different degrees of deflection or installation error. Through deflection sensitivity detection, it can be evaluated whether rotary transformer can still work normally under these conditions, whether it will cause performance decline or inaccurate output signal due to deflection.

[0004] The Chinese utility model patent with publication number CN214237773U discloses a kind of reluctance rotary transformer detection fixing device, this device is clamped to rotary transformer, improve the stability of rotary transformer in detection process, satisfy different specifications rotary transformer detection requirements by double fixing, and improve safety by guiding mechanism, but this device cannot quickly eject rotary transformer when detection accident occurs. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model discloses a kind of testing devices for rotary transformer

[0006] The utility model discloses a technical scheme that solves the above technical problem is adopted: a kind of testing device for rotary transformer, including deflection subassembly, the deflection subassembly includes base, adjusting mechanism is provided on the base, adjusting mechanism is provided with clamping assembly, the clamping assembly includes the oscillation frame of sliding installation on adjusting disc, protection frame is provided on the oscillation frame, multiple groups of ejection column are slidably arranged in the protection frame, spring two is provided between the ejection column and oscillation frame, the ejection column is attached with rotary transformer, and the rotary transformer includes stator, wire harness is rotatably arranged in stator, rotor is provided on the side of stator, rotating shaft and clamping frame are provided on the oscillation frame, and the clamping frame is clamped to rotary transformer.

[0007] Further, the adjusting structure includes a limiting frame slidably mounted on the base, the limiting frame is provided with an adjusting frame, and an electric cylinder is further provided on the base, with the movable end of the electric cylinder being connected with the limiting frame.

[0008] Further, an adjusting column is rotatably provided on the base, an offset column is rotatably provided on the adjusting column, a limiting ball is provided at one end of the offset column, an adjusting disc is provided at the other end of the offset column, a mounting frame is provided on the adjusting disc, and the limiting ball is slidably connected with the adjusting frame.

[0009] Further, a spring one is provided between the oscillation frame and the adjusting disc, a cam is rotatably provided on the mounting frame, and the cam is attached with the oscillation frame.

[0010] Further, multiple locking columns are slidably arranged in the rotating shaft, and the rotating shaft and the locking columns are inserted into the wire harness and drive the wire harness to rotate.

[0011] The utility model discloses the deflection subassembly of setting drives rotary transformer to carry out the adjustment of multiple angles, changes the position of rotary transformer, improves the accuracy of the deflection sensitivity detection of rotary transformer, the clamping assembly of setting of the utility model discloses carries out the clamping to rotary transformer, improves the stability of rotary transformer in the detection process, and the applicability of the utility model is improved to the rotary test of rotary transformer, when rotary transformer occurs accidental incident in the process of detection, the clamping assembly can quickly eject the clamping assembly, avoids the harm of clamping assembly to equipment or personnel, and the security of the utility model is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure front view of the utility model.

[0013] Figure 2 It is Figure 1 It is the structure section view of A-A direction in the middle.

[0014] Figure 3 It is the whole structure schematic view of the utility model.

[0015] Figure 4 It is the right view of the utility model deflection assembly structure.

[0016] Figure 5 The utility model discloses a Figure 4 It is the structure section view of B-B direction in the utility model.

[0017] Figure 6 It is the partial structure schematic view of the utility model deflection assembly.

[0018] Figure 7 It is the right view of the utility model clamping assembly structure.

[0019] Figure 8 The utility model discloses a Figure 7 It is the structure section view of C-C direction in the utility model.

[0020] Figure 9 It is the partial structure section view of the utility model clamping assembly.

[0021] Fig. 1 - deflection assembly;2 - clamping assembly;3 - rotary transformer;101 - base;102 - adjusting frame;103 - limiting frame;104 - electric cylinder;105 - adjusting disc;106 - mounting frame;107 - adjusting column;108 - deflection column;109 - limiting ball;201 - oscillation frame;202 - spring one;203 - cam;204 - protection frame;205 - clamping frame;206 - rotating shaft;207 - locking column;208 - ejection column;209 - spring two;301 - stator;302 - rotor;303 - wire harness. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 9 The utility model discloses a kind of rotary transformer test devices shown in the drawing, including the clamping assembly 2 for clamping rotary transformer 3 and detecting the rotation sensitivity of rotary transformer 3, when rotary transformer 3 occurs position deviation during detection process, clamping assembly 2 quickly separates rotary transformer 3 from the device, avoid more serious accident of rotary transformer 3 to cause influence to personnel and equipment, the utility model is also provided with deflection assembly 1, clamping assembly 2 is installed on deflection assembly 1, deflection assembly 1 drives clamping assembly 2 and rotary transformer 3 are deflected, and the deflection sensitivity of rotary transformer 3 is detected.

[0023] The deflection assembly 1 comprises a base 101, a limiting frame 103 is slidably arranged on the base 101, an electric cylinder 104 is arranged on the base 101, the movable end of the electric cylinder 104 is connected with the limiting frame 103, when the electric cylinder 104 is driven, the electric cylinder 104 drives the limiting frame 103 to reciprocatingly slide on the base 101, an adjusting frame 102 is arranged on the limiting frame 103, a limiting groove is arranged in the adjusting frame 102, an adjusting column 107 is rotatably arranged in the base 101, a deflection column 108 is rotatably arranged on the adjusting column 107, a limiting ball 109 is arranged at one end of the deflection column 108, the limiting ball 109 slides in the limiting groove of the adjusting frame 102, an adjusting disc 105 is arranged at the other end of the deflection column 108, a mounting frame 106 is arranged on the adjusting disc 105, a clamping assembly 2 is mounted on the adjusting disc 105, when the deflection sensitivity of the rotary transformer 3 is detected, the electric cylinder 104 is driven to slide on the base 101, the electric cylinder 104 drives the limiting frame 103 and the adjusting frame 102 to move, when the limiting frame 103 and the adjusting frame 102 slide on the base 101, the adjusting frame 102 drives the limiting ball 109 to move, the limiting ball 109 drives the deflection column 108 to rotate on the adjusting column 107, the deflection column 108 drives the adjusting disc 105 to rotate with the rotary transformer 3, the adjusting column 107 is driven to rotate on the base 101, the adjusting column 107 drives the deflection column 108 and the rotary transformer 3 to rotate along the axis of the adjusting column 107, the multi-angle deflection of the rotary transformer 3 is completed, and the detection precision of the deflection sensitivity of the rotary transformer 3 is improved.

[0024] The clamping assembly 2 comprises a vibration frame 201 slidingly mounted on the adjusting disc 105, a plurality of spring groups 202 are arranged between the vibration frame 201 and the adjusting disc 105, a cam 203 is rotationally arranged on the mounting frame 106, the cam 203 is in contact with the vibration frame 201, when the driving cam 203 rotates, the cam 203 drives the vibration frame 201 to reciprocate on the adjusting disc 105, thereby realizing the vibration of the rotary transformer 3, detecting whether the rotary transformer 3 has abnormal noise, two clamping frames 205 are slidingly arranged on the vibration frame 201, the two clamping frames 205 are close to each other to clamp the stator 301, thereby completing the clamping of the rotary transformer 3, a rotating shaft 206 is coaxially rotationally arranged on the vibration frame 201, a plurality of locking columns 207 are slidingly arranged in the rotating shaft 206, the rotating shaft 206 is inserted into the wire harness 303, the locking columns 207 are driven to slide in the rotating shaft 206, the rotating shaft 206 is in contact with the inner wall of the wire harness 303, thereby completing the fixation of the rotating shaft 206 and the wire harness 303, at this time, the stator 301 is fixed with the clamping frame 205, when the rotating shaft 206 is driven to rotate on the vibration frame 201, the rotating shaft 206 drives the wire harness 303 to rotate on the rotor 302, thereby testing the rotation detection function of the wire harness 303, two protection frames 204 are arranged on the vibration frame 201, a plurality of ejection columns 208 are slidingly arranged in the protection frame 204, spring groups 209 are arranged between the ejection columns 208 and the protection frame 204, when the rotary transformer 3 is placed on the protection frame 204, the ejection columns 208 are pressed, the ejection columns 208 compress the spring groups 209, the ejection columns 208 are fixed on the vibration frame 201 by the electromagnet block, when the rotary transformer 3 has an accident, the electromagnet block is turned off to release the fixation of the ejection columns 208, at this time, the ejection columns 208 are reset by the restoring force of the deformation of the spring groups 209, the ejection columns 208 push the rotary transformer 3 out, thereby completing the protection of personnel and equipment, a monitoring camera is further arranged on the vibration frame 201 to monitor the working state of the rotary transformer 3.

[0025] The rotary transformer 3 comprises a stator 301, a wire harness 303 is rotationally arranged in the stator 301, a rotor 302 is arranged on the side of the stator 301, the rotor 302 is connected with a power supply and a data analyzer.

[0026] Working principle: when working, place the rotary transformer 3 on the protection frame 204, press the ejection column 208 with the rotary transformer 3, press the ejection column 208 into the protection frame 204, at this time the spring 209 is compressed, the electromagnet block in the protection frame 204 is started to fix the ejection column 208, at the same time the rotating shaft 206 is inserted into the wire harness 303, drives multiple sets of locking columns 207 to slide on the rotating shaft 206, multiple sets of locking columns 207 are close to the inner wall of the wire harness 303 to complete the fixation of the rotating shaft 206 and the wire harness 303, drives two sets of clamping frames 205 to approach each other, two sets of clamping frames 205 clamp the rotary transformer 3, the rotor 302 is connected with the power supply and data analyzer, after completing the fixation of the rotary transformer 3, drive the cam 203 to rotate, the cam 203 drives the oscillation frame 201 to reciprocate on the adjusting disc 105, the oscillation frame 201 drives the rotary transformer 3 to vibrate, detects whether the rotary transformer 3 has abnormal sound.

[0027] After completing the detection of abnormal sound of the rotary transformer 3, the rotary transformer 3 is tested, the rotating shaft 206 is driven to rotate on the oscillation frame 201, the rotating shaft 206 drives the wire harness 303 to rotate through the locking column 207, changes the rotating speed of the rotating shaft 206 to judge whether the rotating speed detection of the rotary transformer 3 is accurate, when the monitoring camera on the oscillation frame 201 detects that the rotary transformer 3 has position deviation, assembly looseness and other faults during detection, drive the locking column 207 to retract into the rotating shaft 206, at the same time drive two sets of clamping frames 205 to move away from each other, at the same time close the electromagnet block in the protection frame 204, at this time the ejection column 208 is reset by the deformation recovery force of the spring 209, the ejection column 208 quickly ejects the rotary transformer 3, avoids the rotary transformer 3 from causing harm to personnel and equipment.

[0028] When the deflection sensitivity of the rotary transformer 3 is detected, the electric cylinder 104 is driven to slide on the base 101, the electric cylinder 104 drives the limiting frame 103 and the adjusting frame 102 to move, when the limiting frame 103 and the adjusting frame 102 slide on the base 101, the adjusting frame 102 drives the limiting ball 109 to move, the limiting ball 109 drives the deflection column 108 to rotate on the adjusting column 107, the deflection column 108 drives the adjusting disc 105 and the rotary transformer 3 to rotate, drives the adjusting column 107 to rotate on the base 101, the adjusting column 107 drives the deflection column 108 and the rotary transformer 3 to rotate along the axis of the adjusting column 107, completes the multi-angle deflection of the rotary transformer 3, improves the detection accuracy of the deflection sensitivity of the rotary transformer 3.

Claims

1. A test device for a rotary transformer comprising a deflection assembly (1), characterized in that: The deflection assembly (1) comprises a base (101), the base (101) is provided with an adjusting mechanism, the adjusting mechanism is provided with a clamping assembly (2), the clamping assembly (2) comprises a vibration frame (201) slidingly installed on the adjusting disc (105), the vibration frame (201) is provided with a protection frame (204), a plurality of ejection columns (208) are slidingly arranged in the protection frame (204), the spring two (209) is arranged between the ejection column (208) and the vibration frame (201), the ejection column (208) is attached to the rotary transformer (3), the rotary transformer (3) comprises a stator (301), the stator (301) is rotatably provided with a wire harness (303), the stator (301) is provided with a rotor (302) on the side, the vibration frame (201) is provided with a rotating shaft (206) and a clamping frame (205), and the clamping frame (205) clamps the rotary transformer (3).

2. A test device for a resolver according to claim 1, characterized in that: The adjusting mechanism comprises a limiting frame (103) slidingly installed on the base (101), the limiting frame (103) is provided with an adjusting frame (102), and the base (101) is further provided with an electric cylinder (104), and the movable end of the electric cylinder (104) is connected with the limiting frame (103).

3. A test device for a rotary transformer as defined in claim 2, characterized in that: The base (101) is rotatably provided with an adjusting column (107), the adjusting column (107) is rotatably provided with a deflection column (108), one end of the deflection column (108) is provided with a limiting ball (109), the other end of the deflection column (108) is provided with an adjusting disc (105), the adjusting disc (105) is provided with a mounting frame (106), and the limiting ball (109) is slidingly connected with the adjusting frame (102).

4. A test device for a rotary transformer as claimed in claim 3, characterized in that: The spring one (202) is arranged between the vibration frame (201) and the adjusting disc (105), the cam (203) is rotatably arranged on the mounting frame (106), and the cam (203) is attached to the vibration frame (201).

5. A test device for a rotary transformer as claimed in claim 4, characterized in that: The rotating shaft (206) is slidingly provided with a plurality of locking columns (207), and the rotating shaft (206) and the locking column (207) are inserted into the wire harness (303) and drive the wire harness (303) to rotate.

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