A slip ring with self-cleaning capability

Abstract

The application provides a slip ring with self-cleaning capability, and relates to the technical field of conductive slip rings.The slip ring comprises a brush wire body, a ring piece assembly is mounted on the brush wire body, the ring piece assembly is used for preventing metal debris generated by friction between the brush wire body and the ring piece assembly from accumulating at a contact position to cause short circuit, the outer periphery of an outer ring piece is in abutment with the brush wire body, an inner ring piece is connected with the outer ring piece through a connecting piece, a spiral ring groove is processed on the outer ring piece, and a through hole is formed in the spiral ring groove.In the use process of the slip ring, debris generated by friction between the brush wire body and the outer ring piece is collected through the spiral ring groove, so that the self-cleaning function is realized.In addition, the spiral ring groove increases the contact area of the brush wire body and the outer ring piece, the electric transmission capacity of the slip ring is more stable, metal debris is automatically treated, labor cost is reduced, and the service life of the slip ring is prolonged.

Description

Technical Field

[0001] This invention relates to the field of conductive slip ring technology, and in particular to a slip ring with self-cleaning capability. Background Technology

[0002] Conductive slip rings are key electrical components, serving as power transmission devices for transmitting electrical signals and power between two relatively rotating structures. They play a crucial role in transmitting electrical energy and signals in rotating systems and have applications in many fields.

[0003] During actual use, the constant friction between the slider or brush bristles and the ring plate of a slip ring generates debris. This excess friction material is often metal, and if not cleaned in time, it will accumulate at the contact points, causing a short circuit in the slip ring. This is a common form of malfunction and failure, severely affecting conductivity and service life. The specific cause of the aforementioned problem is excessive wear debris, which cannot be automatically discharged from the contact area in a timely manner.

[0004] Therefore, in order to address the shortcomings of the existing structure, we have conducted research and improvements and proposed a slip ring with self-cleaning capabilities. Summary of the Invention

[0005] The purpose of this invention is to provide a slip ring with self-cleaning capability. This slip ring with self-cleaning capability achieves its self-cleaning function by adding a spiral groove structure to the outer ring plate. The debris generated by the friction between the brush bristles and the outer ring plate is collected through the spiral groove.

[0006] This invention provides a slip ring with self-cleaning capability, comprising a brush bristle body, wherein a ring assembly is mounted on the brush bristle body, the ring assembly being used to prevent metal debris generated by friction between the brush bristle body and the ring assembly from accumulating at the contact points and causing a short circuit.

[0007] The ring assembly includes an outer ring plate, an inner ring plate, a connector, a spiral ring groove, and a through hole;

[0008] The outer circumference of the outer ring plate abuts against the brush filament body. The inner ring plate is connected to the outer ring plate through the connector. The outer ring plate is machined with a spiral groove, and a through hole is opened in the spiral groove. By rotating the brush filament body and the outer ring plate relative to each other, metal debris is guided into the spiral groove, reducing the accumulation of metal debris at the contact points of the brush filament body and the outer ring plate.

[0009] Preferably, the inner ring plate is provided with an adsorption component, which is used to collect metal debris generated by the friction between the brush bristle body and the ring plate assembly.

[0010] The adsorption component includes an adhesive layer, a sponge layer, and an adsorption layer;

[0011] The sponge layer is connected to the adhesive layer and the inner ring plate. The adsorption layer is disposed on the side of the sponge layer away from the adhesive layer. Metal debris is adsorbed onto the sponge layer and the adsorption layer through the through holes, thereby collecting the metal debris in a concentrated manner.

[0012] Preferably, the connector includes a limiting plate and a positioning pin;

[0013] The limiting plate and the outer ring piece are fixedly connected. The limiting plate is inserted into the limiting groove of the inner ring piece. The limiting plate is connected to the inner ring piece through the positioning pin.

[0014] Preferably, the inner ring plate is machined with an annular groove, and the inner ring plate and the outer ring plate are combined to form a cavity for collecting metal debris.

[0015] Preferably, the surface of the spiral annular groove is sanded to form a uniformly rough surface, so that the collected metal debris is stably concentrated in the spiral annular groove.

[0016] Preferably, the adsorption layer is formed by needle punching Nomex fibers.

[0017] Preferably, the adhesive layer is composed of a cotton paper substrate and a hot-melt pressure-sensitive adhesive.

[0018] This invention provides a slip ring with self-cleaning capability through improvements, which have the following improvements and advantages compared with the prior art:

[0019] By using an outer ring plate, inner ring plate, connectors, spiral grooves, and through holes in combination, and by adding a spiral groove structure to the outer ring plate, the debris generated by the friction between the brush bristles and the outer ring plate during the use of the slip ring is collected through the spiral groove, achieving a self-cleaning function. In addition, the spiral groove increases the contact area between the brush bristles and the outer ring plate, making the slip ring's electrical transmission capability more stable. The automatic handling of metal debris not only reduces labor costs but also extends the service life of the slip ring. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the outer ring plate, spiral groove and through hole of the present invention.

[0022] Figure 3 This is a schematic diagram of the inner ring plate of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the adhesive layer, sponge layer and adsorption layer of the present invention.

[0024] Figure 5This is a schematic diagram of the structure of the inner ring plate, positioning pin, and adhesive layer of the present invention.

[0025] Figure 6 This is an assembly diagram of the outer ring plate, inner ring plate, and brush bristle body of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Brush bristle body, 2-Ring assembly, 21-Outer ring, 22-Inner ring, 23-Connector, 231-Limiting plate, 232-Positioning pin, 24-Spiral groove, 25-Through hole, 3-Adsorption assembly, 31-Adhesive layer, 32-Sponge layer, 33-Adsorption layer. Detailed Implementation

[0028] In this embodiment, as Figure 1 and Figure 6 As shown, a slip ring with self-cleaning capability includes a brush bristle body 1 and a ring assembly 2 mounted on the brush bristle body 1. The ring assembly 2 is used to prevent metal debris generated by friction between the brush bristle body 1 and the ring assembly 2 from accumulating at the contact points and causing a short circuit. The ring assembly 2 includes an outer ring 21, an inner ring 22, a connector 23, a spiral ring groove 24, and a through hole 25. The outer periphery of the outer ring 21 abuts against the brush bristle body 1. The inner ring 22 is connected to the outer ring 21 through the connector 23. The outer ring 21 is machined with a spiral ring groove 24, and a through hole 25 is opened in the spiral ring groove 24. By rotating the brush bristle body 1 and the outer ring 21 relative to each other, metal debris is guided into the spiral ring groove 24, reducing the accumulation of metal debris at the contact points of the brush bristle body 1 and the outer ring 21.

[0029] Furthermore, the outer ring plate 21 and the inner ring plate 22 are designed to be detachable. The inner ring plate 22 is used to install on the slide of the conductive slip ring. The number of spiral ring grooves 24 on the outer ring plate 21 is specifically processed according to the usage requirements. The through hole 25 penetrates the cavity formed by the combination of the outer ring plate 21, the inner ring plate 22, and the outer ring plate 21. Spiral ring grooves 24 are added to the original outer ring plate 21. During the use of the conductive slip ring, the debris generated by the friction between the brush bristle body 1 and the outer ring plate 21 is collected through the spiral ring grooves 24 to achieve the self-cleaning function.

[0030] In some embodiments, such as Figure 4 and Figure 5 As shown, an adsorption component 3 is provided in the inner ring plate 22. The adsorption component 3 is used to collect metal debris generated by the friction between the brush body 1 and the ring plate assembly 2. The adsorption component 3 includes an adhesive layer 31, a sponge layer 32 and an adsorption layer 33. The sponge layer 32 is connected to the inner ring plate 22 through the adhesive layer 31. The adsorption layer 33 is located on the side of the sponge layer 32 away from the adhesive layer 31. The metal debris is adsorbed onto the sponge layer 32 and the adsorption layer 33 through the through hole 25, thereby collecting the metal debris in a concentrated manner.

[0031] Furthermore, the design of the adhesive layer 31 facilitates the replacement of the sponge layer 32 and the adsorption layer 33. Both the sponge layer 32 and the adsorption layer 33 can adsorb metal debris, preventing metal debris from falling into the housing of the conductive slip ring.

[0032] In some embodiments, such as Figure 2 and Figure 3 As shown, the connector 23 includes a limiting plate 231 and a positioning pin 232. The limiting plate 231 is fixedly connected to the outer ring piece 21. The limiting plate 231 is inserted into the limiting groove of the inner ring piece 22. The limiting plate 231 is connected to the inner ring piece 22 through the positioning pin 232.

[0033] Furthermore, the limiting plate 231 and the inner ring piece 22 are connected by a limiting groove, and the limiting plate 231 and the inner ring piece 22 are fixed by a positioning pin 232, thereby enhancing the connection stability between the inner ring piece 22 and the outer ring piece 21.

[0034] The inner ring plate 22 has an annular groove machined on it. When the inner ring plate 22 and the outer ring plate 21 are combined together, they form a cavity for collecting metal debris.

[0035] The cavity formed by the combination of the inner ring plate 22 and the outer ring plate 21 is connected to the through hole 25, which is beneficial for collecting debris.

[0036] The surface of the spiral annular groove 24 is sanded to form a uniformly rough surface, so that the collected metal debris is stably concentrated in the spiral annular groove 24.

[0037] The spiral annular groove with 24 frosted finish is designed to adsorb debris.

[0038] The adsorption layer 33 is made of Nomex fiber needle punched together.

[0039] The adsorption layer 33 is made of Nomex fiber, and there are gaps between the Nomex fibers to adsorb metal debris. Nomex fiber has excellent high temperature resistance and flame retardancy, good dimensional stability and good mechanical properties.

[0040] The adhesive layer 31 is composed of cotton paper substrate and hot melt pressure-sensitive adhesive.

[0041] The design of the adhesive layer 31 facilitates the separation and replacement of the sponge layer 32 and the absorbent layer 33 from the groove in the inner ring plate 22.

[0042] The working principle of this application is illustrated below with a preferred embodiment:

[0043] First, insert the inner ring plate 22 into the inner cavity of the outer ring plate 21. Insert the limiting plate 231 on the outer ring plate 21 into the limiting groove of the inner ring plate 22. Then, use the positioning pin 232 to connect the inner ring plate 22 and the limiting plate 231. At this time, the inner ring plate 22 and the outer ring plate 21 are installed together. When the whole mechanism is in use, the brush body 1 and the outer ring plate 21 will continuously rub against each other and generate debris. As the brush body 1 and the outer ring plate 21 rotate relative to each other, the debris enters the interior of the spiral ring groove 24. Some debris enters the cavity of the inner ring plate 22 and the outer ring plate 21 along the through hole 25. The debris is adsorbed by the adsorption layer 33. Some debris remains in the sponge layer 32, thus completing the automatic processing of some metal debris. After removing the inner ring plate 22 from the outer ring plate 21, pull the adhesive layer 31 to separate the inner ring plate 22, so that the adsorption layer 33 and the sponge layer 32 can be replaced.

Claims

1. A slip ring with self-cleaning capability, comprising a brush bristle body (1), characterized in that, A ring assembly (2) is installed on the brush bristle body (1). The ring assembly (2) is used to prevent metal debris generated by friction between the brush bristle body (1) and the ring assembly (2) from accumulating at the contact point and causing a short circuit. The ring assembly (2) includes an outer ring (21), an inner ring (22), a connector (23), a spiral groove (24), and a through hole (25); The outer circumference of the outer ring plate (21) abuts against the brush filament body (1). The inner ring plate (22) is connected to the outer ring plate (21) through the connector (23). The outer ring plate (21) is machined with a spiral ring groove (24). A through hole (25) is opened in the spiral ring groove (24). By rotating the brush filament body (1) and the outer ring plate (21) relative to each other, metal debris is guided into the spiral ring groove (24), reducing the cumulative amount of metal debris at the contact points of the brush filament body (1) and the outer ring plate (21). An adsorption component (3) is provided in the inner ring plate (22), and the adsorption component (3) is used to collect metal debris generated by the friction between the brush filament body (1) and the ring plate assembly (2). The adsorption component (3) includes an adhesive layer (31), a sponge layer (32), and an adsorption layer (33). The sponge layer (32) is connected to the adhesive layer (31) and the inner ring plate (22). The adsorption layer (33) is disposed on the side of the sponge layer (32) away from the adhesive layer (31). Metal debris is adsorbed on the sponge layer (32) and the adsorption layer (33) through the through hole (25), thereby collecting the metal debris in a concentrated manner.

2. The slip ring with self-cleaning capability according to claim 1, characterized in that, The connector (23) includes a limiting plate (231) and a positioning pin (232); The limiting plate (231) and the outer ring piece (21) are fixedly connected. The limiting plate (231) is inserted into the limiting groove of the inner ring piece (22). The limiting plate (231) is connected to the inner ring piece (22) through the positioning pin (232).

3. A slip ring with self-cleaning capability according to claim 1, characterized in that, The inner ring plate (22) is machined with an annular groove, and the inner ring plate (22) and the outer ring plate (21) are combined to form a cavity for collecting metal debris.

4. A slip ring with self-cleaning capability according to claim 1, characterized in that, The surface of the spiral ring groove (24) is sanded to form a uniformly rough surface, so that the collected metal debris is stably concentrated in the spiral ring groove (24).

5. A slip ring with self-cleaning capability according to claim 1, characterized in that, The adsorption layer (33) is formed by needle punching Nomex fibers.

6. A slip ring with self-cleaning capability according to claim 1, characterized in that, The adhesive layer (31) is composed of cotton paper substrate and hot melt pressure-sensitive adhesive.

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