A conductive slip ring brush filament contact load testing device

Abstract

The utility model discloses a kind of electrically-conductive slip ring brush wire contact load testing devices, the device is composed of electrically-conductive slip ring brush wire fixture and contact load detection two parts, electrically-conductive slip ring brush wire is fixed on rotating platform by brush wire fixture, rotating platform drives brush wire to rotate certain angle and fixed simulation brush wire actual bending angle;Electrically-conductive slip ring ring piece is connected with pressure sensor by ring piece fixture, electrically-conductive slip ring ring piece and pressure sensor are fixed on rotating platform by L type fixture, rotating platform drives ring piece rotation and contact with brush wire, accurately measure the actual value of electrically-conductive slip ring brush wire contact load, the utility model has high measurement accuracy, and the brush wire contact load of the slip ring of different models can be measured.

Description

Technical Field

[0001] This utility model relates to the field of pressure detection, specifically a conductive slip ring brush filament contact load testing device. Background Technology

[0002] Conductive slip rings are crucial components widely used in spaceborne products, enabling the transmission of electrical power and signals between rotating and stationary parts. Alloy wires are widely used in the brush materials of conductive slip rings. In a conductive slip ring, the brush filaments contact the slip ring body with a certain contact load. This contact load significantly affects the performance of the electrical contact, the wear rate, and the service life. The selection of the contact load is related to the current and load conducted by the conductive slip ring. The higher the current and voltage, the greater the required contact load. A larger contact load results in lower contact resistance, reducing the likelihood of electrical sparks and electrolytic corrosion. However, there are limits to the increase in load. Exceeding the load limit will increase the frictional torque, increase wear, raise the friction rate, and reduce the service life of the equipment.

[0003] Contact load testing of conductive slip ring brush filaments is a crucial task, directly impacting the quality of the conductive slip ring. As a vital component of the conductive slip ring, detecting the contact load value of the brush during tooling is a critical step. Currently, there is no ideal solution for detecting the load on the brush filaments, often resulting in significant errors during testing. This device simulates the actual contact pressure value between the brush filaments and the slip ring by obtaining the maximum contact load value generated by the rotating ring plate in contact with the brush filaments. This device boasts high testing accuracy, stable and reliable performance, and is of practical significance for detecting the contact pressure value of brush filaments. Utility Model Content

[0004] This invention addresses the problem of detecting the contact load value of conductive slip ring brush filaments by providing a conductive slip ring brush filament contact load testing device. By designing a fixed structure between the brush filaments and the ring plate, and using a spatial movement device, the actual contact state between the brush filaments and the slip ring is simulated. Furthermore, the contact load value of the brush filaments is measured by a pressure sensor.

[0005] To solve the above problems, this utility model provides the following technical solution: The device consists of two parts: a conductive slip ring brush filament clamp and a contact load detection unit. The conductive slip ring brush filament is fixed on a rotating table by the brush filament clamp. The rotating table rotates the brush filament at a certain angle and fixes it to simulate the actual bending angle of the brush filament. The conductive slip ring plate is connected to a pressure sensor through a plate clamp. The conductive slip ring plate and the pressure sensor are fixed on the rotating table by an L-shaped clamp. The rotating table rotates the plate to contact the brush filament and simulate the contact load of the conductive slip ring brush filament. The conductive slip ring brush filament clamp and the contact load detection unit are respectively mounted on an optical platform by a fixing plate to ensure the accuracy and stability of the pressure detection.

[0006] Furthermore, as a preferred embodiment, the brush bristle clamp is fixed on a rotating table, and the rotating table drives the brush bristle clamp to rotate at different angles to simulate different types of conductive slip rings;

[0007] Furthermore, as a preferred embodiment, the brush bristle clamp can be replaced with different models to clamp brush bristles of different diameters to simulate different models of conductive slip rings;

[0008] Furthermore, as a preferred embodiment, the rotary table of the fixed brush clamp is fixed on a three-dimensional displacement stage, and the displacement stage can move in three dimensions to simulate different types of conductive slip rings.

[0009] Furthermore, as a preferred embodiment, the ring plate is fixed to the rotating table by an L-shaped clamp, and the center of the ring plate coincides with the rotation center of the rotating table in the vertical direction. The pressure sensor is connected to the ring plate clamp by bolts. The rotating table drives the ring plate to rotate, and the contact load generated by the ring plate and the brush bristles is displayed by the pressure sensor. When the value is at its maximum, it is the actual value of the contact load of the conductive slip ring brush bristles. Attached Figure Description

[0010] Figure 1 A schematic diagram of the overall test device for conductive slip ring brush filament contact load.

[0011] Figure 2 Component diagram of the ring-shaped tooling

[0012] Figure 3 Schematic diagram of the bristle clamp

[0013] Figure 4 Schematic diagram of ring clamp Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention. Other embodiments obtained by those skilled in the art without inventive effort are all within the protection scope of this utility model.

[0015] This device is divided into two parts: a conductive slip ring brush filament clamp and a contact load detection unit. The conductive slip ring brush filament clamp consists of a three-dimensional displacement stage (401), a rotary stage (402), a brush filament clamp (403), a brush filament pressure plate (404), and brush filaments (405). The three-dimensional displacement stage (401) is mounted on a fixed plate (2), which is mounted on an optical platform (1) by bolts (201). The rotary stage (402) is mounted on the three-dimensional displacement stage (401). The brush filament clamp (403) is mounted on the rotary stage (402). The brush filaments (405) are placed in the V-groove of the brush filament clamp (403), and the brush filaments (405) are fixed and positioned by the brush filament pressure plate (404) cooperating with the brush filament clamp (403).

[0016] The contact load detection section consists of a fixed stage (301), a rotating stage (302), an L-shaped clamp (303), a pressure sensor (304), a ring clamp (305), a ring pressure plate (306), and a ring (307). The fixed stage (301) is mounted on a fixed plate (2), which is mounted on an optical platform (1) by bolts (201). A rotating stage (302) is mounted above the fixed stage (301), and the L-shaped clamp (303) is mounted on the rotating stage (302). The pressure sensor (304) is connected to the L-shaped clamp (303) by bolts (310). Next, the ring clamp (305) is connected to the pressure sensor (304) by bolts (309); the ring clamp (305) is designed with a semi-circular outline, the diameter of which is the same as the diameter of the ring (307), which serves to position the ring (307); the ring pressure plate (306) is connected to the ring clamp (305) by bolts (308), which serves to fix the ring (307); the L-shaped clamp (303) has a boss on the top, which serves to position the pressure sensor (304), and the ring clamp (305) has a boss, which serves to position the pressure sensor (304).

[0017] During pressure testing, the rotary table (402) is first rotated by a certain angle so that the bristles (405) reach the predetermined angle position, and the rotary table (402) is fixed by locking the button. The coarse adjustment knob of the rotary table (302) drives the ring plate (307) to contact the bristles (405), and a large contact load range is obtained on the pressure sensor (304). The fine adjustment knob of the rotary table (302) continues to drive the ring plate (307) to contact the bristles (405), and the maximum contact load value is the final value.

[0018] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A conductive slip ring brush filament contact load testing device, characterized in that, The device consists of two parts: a conductive slip ring brush filament clamp and a contact load detection unit. The conductive slip ring brush filament is fixed to a rotating platform by the brush filament clamp. The rotating platform rotates the brush filament at a certain angle and fixes it to simulate the actual bending angle of the brush filament. The conductive slip ring plate is connected to a pressure sensor by a plate clamp. The plate and the pressure sensor are fixed to the rotating platform by an L-shaped clamp. The rotating platform rotates the plate to contact the brush filament and simulate the contact load of the conductive slip ring brush filament. The conductive slip ring brush filament clamp and the contact load detection unit are respectively mounted on an optical platform by fixing plates to ensure the accuracy and stability of pressure detection.

2. The conductive slip ring brush filament contact load testing device according to claim 1, characterized in that, The brush clamp is fixed on a rotating platform, and the rotating platform drives the brush clamp to rotate at different angles to simulate different types of conductive slip rings.

3. The conductive slip ring brush filament contact load testing device according to claim 1, characterized in that, The brush clamp can be replaced with different models to clamp brushes of different diameters, simulating different models of conductive slip rings.

4. The conductive slip ring brush filament contact load testing device according to claim 1, characterized in that, The rotating table of the fixed brush clamp is fixed on a three-dimensional displacement stage, which can move in three dimensions to simulate different types of conductive slip rings.

5. The conductive slip ring brush filament contact load testing device according to claim 1, characterized in that, The ring plate is fixed to the rotating table by an L-shaped clamp. The center of the ring plate coincides with the rotation center of the rotating table in the vertical direction. The pressure sensor is connected to the ring plate clamp by bolts. The rotating table drives the ring plate to rotate. The ring plate contacts the brush bristles and generates a contact load, which is displayed by the pressure sensor. When the value is at its maximum, it is the actual value of the contact load of the conductive slip ring brush bristles.

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