Conductive slip ring brush wire contact load pressure detection device

Abstract

The invention discloses a conductive slip ring brush wire contact load pressure detection device which is composed of a conductive slip ring brush clamp and a contact pressure detection part, a brush plate clamping plate is fixed on an optical platform through bolts, a brush plate is installed in the brush plate clamping plate, the brush plate is detachable, and the brush plate clamping plate is fixed on the optical platform through bolts. Electric brush plates with different brush wire angles can be replaced, and the electric brush plate pressing plate is arranged at the top of the electric brush plate clamping plate and can be used for pressing the electric brush plates; the pressure detection part adjusts a pressure sensor and a profiling contact through a lifting platform, a displacement platform and an electric rotating platform which are installed on an optical platform so as to better simulate the contact state of an electric brush wire and a slip ring and further more accurately measure the actual value of the contact load of the brush wire of the conductive slip ring. The slip ring brush wire contact load measuring device is high in measuring precision and can measure brush wire contact loads of slip rings of different models.

Description

Technical Field

[0001] The present invention relates to the field of pressure detection, and in particular to a conductive slip ring brush wire contact load pressure detection device. Background Art

[0002] Conductive slip ring is an important component widely used in satellite-borne products, realizing the transmission of electrical power and signals between rotating parts and fixed parts. Alloy wire is widely used in the brush material of conductive slip ring. In the conductive slip ring, the brush wire contacts the conductive slip ring body with a certain pressure. The contact pressure has a great influence on the performance, wear rate and service life of the electrical contact. The choice of contact pressure is related to the current and pressure conducted by the conductive slip ring. The greater the current and voltage, the greater the contact pressure required. The greater the contact pressure, the smaller the contact resistance, and it is less likely to cause electric sparks and electric erosion. However, there is a limit to the increase in pressure. Exceeding the pressure limit will increase the friction torque, increase the wear, increase the friction rate, and reduce the service life of the equipment.

[0003] The contact pressure detection of the brush wire of the conductive slip ring is a very important task, which is related to the product quality of the conductive slip ring. As an important component of the conductive slip ring, the detection of the contact pressure value of the brush during tooling is a very important link. At present, there is no good solution for the pressure detection of the brush wire, and there are often large errors in the detection. This device simulates the actual contact pressure value between the brush wire and the slip ring through the contoured contact and the displacement device, and can further realize its automatic detection and processing through the control system. The device has high test accuracy and stable and reliable performance, which is of practical significance for the detection of the contact pressure value of the brush wire. Summary of the Invention

[0004] The present invention aims to solve the problem of detecting the contact pressure value of the brush wire of a conductive slip ring and provides a conductive slip ring brush wire contact pressure detection device. By designing a contoured contact and using a spatial moving device, the actual contact state between the brush wire and the slip ring is simulated, and the contact pressure value of the brush wire is further measured by a pressure sensor.

[0005] To solve the above problems, the present invention provides the following technical solutions: the device consists of a conductive slip ring brush clamp and a contact pressure detection part. The brush plate clamp is fixed to the optical platform by bolts. The brush plate is installed inside the brush plate clamp. The brush plate is detachable and can be replaced with brush plates of different brush wire angles. It can cooperate with the contact pressure detection part to perform pressure detection of brush wires of different sizes. The brush plate pressure plate is installed on the top of the brush plate clamp and can cooperate with the brush plate clamp to press the brush plate. The pressure detection part consists of an electric lifting platform, an electric displacement platform, an electric rotation platform, a pressure sensor, a pressure sensor base and a contour contact. The contact pressure detection part can be adjusted according to different types of conductive slip rings, and the contour contact is used to simulate the detection of the brush wire contact pressure. The conductive slip ring brush clamp and the contact pressure detection part of the device are respectively installed on the optical platform to ensure the accuracy and stability of pressure detection.

[0006] Furthermore, preferably, the brush plate clamp is mounted on the optical platform, and the internal groove size of the brush plate clamp is designed to be the same as the external structure size of the brush plate to meet the requirements of clamping the brush plate in subsequent steps. A threaded hole is machined on the top of the brush plate clamp to meet the requirements of cooperating with the brush plate pressure plate in subsequent steps to achieve compression of the brush plate.

[0007] Furthermore, as a preferred embodiment, the brush plate is installed inside the brush plate clamping plate, and for measuring the contact pressure of brush wires at different angles, it is only necessary to replace brush plates of different sizes;

[0008] Furthermore, as a preferred embodiment, the bottom size of the brush plate pressing plate is designed to be the same as the internal size of the brush plate clamping plate, and a threaded hole is processed on the top to meet the requirements of matching with the brush plate clamping plate to achieve the pressing of the brush plate;

[0009] Furthermore, as a preferred embodiment, the electric lifting platform is installed on the optical platform, an electric translation platform is installed above the lifting platform, and an electric rotating platform is installed on the slider of the electric translation platform. The three devices can be connected to a motion controller to achieve up and down, left and right, and circular motion of the rotating platform through precise control of the controller;

[0010] Further, as a preference, the electric rotary table is mounted with a pressure sensor base by bolts, and the pressure sensor and the pressure sensor base are connected together by bolts, rather than being placed on the pressure sensor base table, in order to avoid the influence of friction between the pressure sensor and the pressure sensor base that may be generated when the brush wire contacts the contoured contact on the measurement result. The pressure sensor is mounted with a contoured contact, and a boss is machined on the top of the pressure sensor base to achieve positioning of the pressure sensor;

[0011] Further, as a preference, a trapezoidal groove is processed on the contact surface of the profiling contact with the brush wire, the size of the groove is the same as the size of the groove of the conductive slip ring body, and the material of the profiling contact is the same as the material of the conductive slip ring body, further simulating the contact environment between the slip ring and the brush wire, and the plane where the profiling contact contacts the pressure sensor is processed with a boss to achieve positioning of the profiling contact, and the profiling contact can be replaced according to different models of slip ring bodies;

[0012] Furthermore, as a preference, the device can realize the automatic detection function of the brush wire contact pressure through automatic control, accurately simulate different types of conductive slip rings by controlling the electric lifting platform and the electric displacement platform, and find the optimal contact pressure value between the contoured contact and the brush wire by controlling the electric rotating platform, thereby realizing the detection function of the conductive slip ring brush wire contact pressure value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall schematic diagram of the conductive slip ring brush wire contact pressure detection device

[0014] Figure 2 Diagram of the pressure detection contact component

[0015] Figure 3 Schematic diagram of the brush fixture

[0016] Figure 4 Schematic diagram of the brush plate splint structure

[0017] Figure 5 Schematic diagram of the brush plate structure DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concept of the present invention. Other embodiments obtained by those of ordinary skill in the art without making creative work are all within the scope of protection of the present invention.

[0019] The device is divided into two parts: a conductive slip ring brush fixture and a contact pressure detection part. The conductive slip ring brush fixture part is respectively composed of a brush plate clamp (201), a brush plate pressure plate (202), a brush plate (203) and a bolt (205); the brush plate clamp (201) is installed on an optical platform (3) through a bolt (204); the external structural dimensions of the brush plate (203) are the same as the internal groove dimensions of the brush plate clamp (201); during installation, the brush plate (203) is placed inside the brush plate clamp (201); a brush plate pressure plate is installed on the top of the brush plate clamp (201) and is connected to the brush plate clamp (201) through a bolt (205) to achieve positioning and clamping of the brush plate (203).

[0020] The contact pressure detection part is respectively composed of an electric lifting platform (101), an electric displacement platform (102), an electric rotating platform (103), a pressure sensor base (104), a pressure sensor (105) and a contour contact (106); the electric lifting platform (101) is installed on the optical platform (3), the electric displacement platform (102) is installed above the electric lifting platform (101), and the electric rotating platform (103) is installed on the slider of the electric displacement platform (102); the pressure sensor base (104) is installed on the electric rotating platform (103), and the pressure sensor (105) is connected to the pressure sensor base (104) through a bolt (107) and the contour contact (106); the top of the pressure sensor base (104) is designed with a boss to play a role in positioning the pressure sensor (105), and the contour contact (106) is designed with a boss to play a role in positioning the contour contact (106).

[0021] When performing pressure detection, the brush plate (203) is first placed inside the brush plate clamp (201), and the brush plate pressure plate (202) is connected to the brush plate clamp (201) by bolts (205) to achieve clamping and fixing of the brush plate (203), and then the pressure sensor (105) and the contour contact (106) are connected to the pressure sensor base (104), and then the electric lifting platform (101) and the electric displacement platform (102) are adjusted to the initial position of the brush wire detection, and the electric rotating platform (103) is further adjusted to make the trapezoidal groove of the contour contact (106) contact with a single brush wire of the brush plate (203), and further measure the contact pressure of the conductive slip ring brush wire at this time. After the test is completed, the electric lifting platform (101) and the electric displacement platform (102) are controlled again to adjust the contour contact (106) to the position of the next brush wire, and the conductive slip ring brush wire contact pressure is detected according to the above process.

[0022] For those skilled in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A conductive slip ring brush wire contact load pressure detection device, characterized in that: The device consists of two parts: a conductive slip ring brush clamp and a contact pressure detection part. The brush plate clamp is fixed to the optical platform by bolts. The brush plate is installed inside the brush plate clamp. The brush plate is detachable and can be replaced with brush plates of different brush wire angles. It can cooperate with the contact pressure detection part to perform pressure detection of brush wires of different sizes. The brush plate pressure plate is installed on the top of the brush plate clamp and can cooperate with the brush plate clamp to press the brush plate. The pressure detection part consists of an electric lifting platform, an electric displacement platform, an electric rotation platform, a pressure sensor, a pressure sensor base and a contoured contact. The contact pressure detection part can be adjusted according to different types of conductive slip rings, and the contoured contact is used to simulate the detection of the brush wire contact pressure. The conductive slip ring brush clamp and the contact pressure detection part of the device are respectively installed on the optical platform to ensure the accuracy and stability of pressure detection.

2. A conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The brush plate clamp is installed on the optical platform. The internal groove size of the brush plate clamp is designed to be the same as the external structure size of the brush plate to meet the clamping of the brush plate in subsequent steps. The top of the brush plate clamp is processed with a threaded hole to meet the cooperation with the brush plate pressure plate in subsequent steps to achieve the compression of the brush plate.

3. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The brush plate is installed inside the brush plate clamping plate. To measure the contact pressure of brush wires at different angles, it is only necessary to replace brush plates of different sizes.

4. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The bottom size of the brush plate pressing plate is designed to be the same as the internal size of the brush plate clamping plate, and a threaded hole is processed on the top to meet the needs of matching with the brush plate clamping plate to achieve compression of the brush plate.

5. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The electric lifting platform is installed on the optical platform, an electric translation platform is installed above the lifting platform, and an electric rotating platform is installed on the slider of the electric translation platform. The three devices can be connected together with the motion controller. Through the precise control of the controller, the up and down, left and right and circular motion of the rotating platform can be realized.

6. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The electric rotary table table is equipped with a pressure sensor base by bolts. The pressure sensor and the pressure sensor base are connected together by bolts. The pressure sensor is not placed on the pressure sensor base table to avoid the influence of the friction between the pressure sensor and the pressure sensor base when the brush wire contacts the contoured contact on the measurement result. The pressure sensor is equipped with a contoured contact, and a boss is processed on the top of the pressure sensor base to achieve the positioning of the pressure sensor.

7. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: A trapezoidal groove is machined above the contoured contact and on the contact surface with the brush wire. The size of the groove is the same as that of the groove of the conductive slip ring body, and the material of the contoured contact is the same as that of the conductive slip ring body, further simulating the contact environment between the slip ring and the brush wire. The plane where the contoured contact contacts the pressure sensor is machined with a boss to achieve positioning of the contoured contact. The contoured contact can be replaced according to different models of slip ring bodies.

8. The conductive slip ring brush contact load pressure detection device according to claim 1, characterized in that: The device can realize the automatic detection function of the brush wire contact pressure through automatic control, accurately simulate different types of conductive slip rings by controlling the electric lifting platform and the electric translation platform, and find the optimal contact pressure value between the contoured contact and the brush wire by controlling the electric rotating platform, thereby realizing the detection function of the conductive slip ring brush wire contact pressure value.

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