Single point mooring conductive slip ring brush and high-strength forming method thereof

Abstract

The application discloses a single-point mooring conductive slip ring brush and a high-strength forming method thereof, which comprises a brush holder and a brush positioning plate. After brush wires are passed through brush wire mounting holes of the brush positioning plate, the brush wires are welded, the brush positioning plate is installed on the brush holder, the brush wires are formed in the hidden bending groove through a forming tool, and the brush wires are hidden in the groove of the brush positioning plate through epoxy resin sealing. The brush positioning plate is reinforced by the brush holder, the brush wires after bending are reinforced by the hidden bending groove, the strength of the formed brush reaches a new height, the strength design requirement of the single-point mooring system conductive slip ring brush is met, and the problems of brush warping, deformation and obvious increase of the opening angle after long-time running are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of manufacturing technology of precision conductive slip rings for single-point mooring, and in particular to a single-point mooring conductive slip ring brush and its high-strength forming method. Background Technology

[0002] In a single-point mooring system, a precision conductive slip ring enables continuous 360° transmission of electrical energy and signals between rotating mechanisms through the sliding friction between the brush and the ring body. The stability of the sliding friction between the brush bristles and the ring body determines several important performance parameters of the conductive slip ring, such as contact resistance and electrical noise. Therefore, improving the stability of the brush bristles and the ring body during rotation is one of the important areas of research in recent years on how to improve the reliability and lifespan of conductive slip rings.

[0003] Single-point mooring conductive slip rings often have a long axial dimension, making the polyimide brush positioning plate prone to deformation. While a brush holder can provide sufficient strength support for the positioning plate, it occupies space, significantly reducing its width and preventing adequate spacing for the brush filaments. Consequently, the brush filaments cannot be bent to the required angle before insertion. A workaround is to insert the brush filaments vertically into the positioning plate and then bend them at the end face using a tooling fixture to achieve the desired angle. This results in a cantilever beam structure at the contact point between the brush filament root and the ring body. The brush filaments bear pressure upon contact, with the root being the primary stress point. Due to the bending at the root, plastic deformation occurs, reducing the strength compared to undeformed filaments. Over time, this leads to an increased angle and decreased pressure on the brush filaments, posing risks to stable power output and signal transmission. Summary of the Invention

[0004] The purpose of this invention is to provide a single-point mooring conductive slip ring brush and its high-strength molding method.

[0005] The objective of this invention is achieved as follows:

[0006] A single-point mooring conductive slip ring brush includes a brush holder and a brush positioning plate. The brush holder has a brush positioning plate mounting groove in the middle and a brush positioning plate mounting threaded hole on the side of the brush positioning plate mounting groove for mounting and fixing the brush positioning plate. The brush holder has a brush holder mounting hole on the side for fixing the brush holder to the conductive slip ring bracket.

[0007] The brush positioning plate has a hidden solder joint groove in the width direction of the top; there are two rows of brush wire mounting holes in the length direction of the brush positioning plate. The "∏"-shaped brush wires are fixedly installed in the brush wire mounting holes. The brush wires are welded in the middle of the brush wires, and the solder joints are embedded in the hidden solder joint grooves and fit tightly with the brush positioning plate.

[0008] Two rows of embedded bending and concealing grooves are provided along the length of the bottom of the brush positioning plate; the brush wires are bent into the required angle within the bending and concealing grooves, and the bending is lower than the end face of the brush positioning plate.

[0009] The bent and concealed groove is filled with epoxy resin, and the height of the epoxy resin is flush with the bottom end face of the brush positioning plate.

[0010] A high-strength forming method for a single-point moored conductive slip ring brush, the specific steps of which are as follows:

[0011] A. First, make a brush holder. The brush holder has a groove for mounting the brush positioning plate, a mounting hole for the brush holder, and a threaded hole for mounting the brush positioning plate.

[0012] B. Make a brush positioning plate with a hidden solder joint groove on the top width direction; two rows of brush wire mounting holes on the length direction; and two rows of buried bending hidden grooves on the bottom length direction.

[0013] C. According to the spacing of the brush bristle holes on the brush positioning plate, bend the brush bristles into a "∏" shape;

[0014] D. Insert the brush filaments into the brush filament mounting holes and weld the wires in the middle of the brush filaments. After welding, embed the solder joints into the solder joint hiding grooves and fit them tightly against the brush positioning plate.

[0015] E. Fill the grooves hidden by the solder joints on the brush positioning plate with epoxy resin to fix the solder joints and brush bristles.

[0016] F. Install the brush positioning plate into the brush positioning plate mounting groove in the middle of the brush holder, and fix it with screws in the mounting threaded holes of the brush positioning plate;

[0017] G. Using forming tooling, the brush wires are bent to the designed angle in the bending hidden groove of the brush positioning plate, and the bending is lower than the end face of the brush positioning plate.

[0018] H. Fill the hidden groove with epoxy resin, and make the height of the epoxy resin flush with the bottom end face of the brush positioning plate.

[0019] I. Secure the entire brush assembly to the conductive slip ring bracket through the brush holder mounting holes on the brush holder.

[0020] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. It is equipped with a brush holder, a brush positioning plate, brush filaments, and a bending fixture. The bending fixture bends the brush filaments to the corresponding angle, ensuring the consistency of bending.

[0022] 2. The brush positioning plate is fixed to the brush holder with screws, which increases the strength of the brush positioning plate and prevents it from warping or deforming.

[0023] 3. By bending the brush bristles and embedding them in the groove of the brush positioning plate, and then sealing them with epoxy resin, the structural strength of the brush bristle cantilever beam is effectively increased, which can significantly improve the phenomenon of increased brush bristle angle after the conductive slip ring has been working for a long time.

[0024] 4. After the bristles are bent, a certain amount of springback will occur through slow stress release. By embedding the bent bristles in the groove of the brush positioning plate and then sealing them with epoxy resin, the phenomenon of the opening angle decreasing due to the springback after the bristles are bent can be prevented. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a conductive slip ring brush holder structure;

[0026] Figure 2 This is a schematic diagram of the conductive slip ring brush positioning plate structure;

[0027] Figure 3 This is a schematic diagram of the forming tooling process;

[0028] Figure 4 This is a schematic diagram of the finished brush structure;

[0029] In the diagram: 1. Brush holder; 2. Brush positioning plate mounting groove; 3. Brush holder mounting hole; 4. Brush positioning plate mounting threaded hole; 5. Brush positioning plate; 6. Brush filament mounting hole; 7. Weld joint concealed groove; 8. Bending concealed groove; 9. Forming tooling; 10. Brush filament; 11. Epoxy resin. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0031] like Figures 1 to 4 As shown, a single-point mooring conductive slip ring brush includes a brush holder 1 and a brush positioning plate 4. The brush holder 1 has a brush positioning plate mounting groove 2 in the middle, and a brush positioning plate mounting threaded hole on the side of the brush positioning plate mounting groove 2 for mounting and fixing the brush positioning plate 4. The brush holder 1 has a brush holder mounting hole 3 on the side for fixing the brush holder 1 to the conductive slip ring bracket.

[0032] The brush positioning plate 4 has a hidden solder joint groove 7 in the width direction of the top; and two rows of brush wire mounting holes 6 in the length direction of the brush positioning plate 4. The "∏"-shaped brush wire 10 is fixedly installed in the brush wire mounting hole 6. The brush wire 10 is welded in the middle of the brush wire 10, and the solder joint is embedded in the hidden solder joint groove 7 and is tightly attached to the brush positioning plate 5.

[0033] Two rows of buried bending and concealing grooves 8 are provided along the length of the bottom of the brush positioning plate 4; the brush wires 10 are bent into the required angle within the bending and concealing grooves 8, and the bending is lower than the end face of the brush positioning plate 4.

[0034] 2. The single-point mooring conductive slip ring brush according to claim 1, characterized in that the bent hidden groove 8 is filled with epoxy resin 11, and the height of the epoxy resin 11 is flush with the bottom end face of the brush positioning plate 4.

[0035] A method for forming bent brush filaments embedded in a conductive slip ring, the specific steps of which are as follows:

[0036] A. As Figure 1 As shown, firstly, a brush holder 1 is made. The brush holder 1 is provided with a brush positioning plate mounting groove 2, a brush holder mounting hole 3, and a brush positioning plate mounting threaded hole.

[0037] B. Make a brush positioning plate 4. The brush positioning plate 4 has a hidden solder joint groove 7 in the width direction of the top of the brush positioning plate 4; two rows of brush wire mounting holes 6 in the length direction of the brush positioning plate 4; and two rows of buried bending hidden grooves 8 in the length direction of the bottom of the brush positioning plate 4.

[0038] C. According to the spacing of the brush bristle holes on the brush positioning plate 4, bend the brush bristles 10 into a "∏" shape;

[0039] D. As Figure 2 As shown, the brush filament 10 is inserted into the brush filament mounting hole 6, and a wire is soldered in the middle of the brush filament 10. After the soldering is completed, the solder joint is buried in the solder joint hiding groove 7 and is tightly fitted with the brush positioning plate 5.

[0040] E. Fill the hidden groove 7 of the welding point on the brush positioning plate 4 with epoxy resin to fix the welding point and brush bristles.

[0041] F. Install the brush positioning plate 4 into the brush positioning plate mounting groove 2 in the middle of the brush holder 1, and fix it with screws in the mounting threaded holes of the brush positioning plate.

[0042] G, such as Figure 3 As shown, the brush wire 10 is bent to the required angle in the bending hidden groove 8 of the brush positioning plate 4 by the forming tool 9, and the bending is lower than the end face of the brush positioning plate 4.

[0043] H, such as Figure 4 As shown, epoxy resin 11 is filled in the bent and hidden groove, and the height of epoxy resin 11 is flush with the bottom end face of the brush positioning plate 4.

[0044] 1. Fix the entire brush assembly onto the conductive slip ring bracket through the brush holder mounting hole 3 on the brush holder 1.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and the inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A single-point mooring conductive slip ring brush, characterized in that, Includes a brush holder (1) and a brush positioning plate. The brush holder (1) has a brush positioning plate mounting groove (2) in the middle and a brush positioning plate mounting threaded hole on the side of the brush positioning plate mounting groove (2) for mounting and fixing the brush positioning plate. The brush holder (1) has a brush holder mounting hole (3) on the side for fixing the brush holder (1) on the conductive slip ring bracket. The top width direction of the brush positioning plate is provided with a solder joint hiding groove (7); the length direction of the brush positioning plate is provided with two rows of brush wire mounting holes (6), and the "∏" shaped brush wire (10) is fixedly installed on the brush wire mounting hole (6). The brush wire (10) is welded with a wire in the middle, and the solder joint is embedded in the solder joint hiding groove (7) and fits tightly with the brush positioning plate (5). Two rows of buried bending and concealing grooves (8) are provided along the length of the bottom of the brush positioning plate; within the buried bending and concealing grooves (8), the brush wires (10) are bent to the angle required by the design, and the bending point is lower than the end face of the brush positioning plate; The buried bending hidden groove (8) is filled with epoxy resin (11), and the height of the epoxy resin (11) is flush with the bottom end face of the brush positioning plate.

2. The high-strength forming method for a single-point mooring conductive slip ring brush according to claim 1, characterized in that, Includes the following steps: A. First, make a brush holder (1). The brush holder (1) has a brush positioning plate mounting groove (2), a brush holder mounting hole (3), and a brush positioning plate mounting threaded hole. B. Make a brush positioning plate with a solder joint hiding groove (7) on the top width direction; two rows of brush wire mounting holes (6) on the length direction; and two rows of buried bending hiding grooves (8) on the bottom length direction. C. According to the spacing of the brush wire mounting holes in the width direction of the brush positioning plate, bend the brush wire (10) into a "∏" shape; D. Insert the brush wire (10) into the brush wire mounting hole (6) and weld the wire in the middle of the brush wire (10). After welding, bury the solder joint in the solder joint hiding groove (7) and fit it tightly with the brush positioning plate (5). E. Fill the hidden groove (7) of the welding point on the brush positioning plate with epoxy resin to fix the welding point and brush bristles. F. Install the brush positioning plate into the brush positioning plate mounting groove (2) in the middle of the brush holder (1), and fix it with screws in the mounting threaded hole of the brush positioning plate; G. Using the forming tool (9), the brush wire (10) is bent into the angle required by the design in the hidden bending groove (8) of the brush positioning plate, and the bending is lower than the end face of the brush positioning plate. H. Fill the buried bending hidden groove (8) with epoxy resin (11), and the height of the epoxy resin (11) in the buried bending hidden groove (8) is flush with the bottom end face of the brush positioning plate. I. Fix the entire brush assembly onto the conductive slip ring bracket through the brush holder mounting hole (3) on the brush holder (1).

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