A device for processing the arc of a carbon brush working surface

Abstract

The utility model relates to the carbon brush processing and manufacturing field, especially to a carbon brush working surface camber processing device. The rotating device of the utility model includes lower base, end face bearing, inner core lower sealing plate, enclosure, inner core, inner core upper sealing plate, upper base, 2 end face bearings are respectively installed into lower base and upper base, the inner core lower sealing plate and inner core upper sealing plate are respectively screwed in the both end faces of inner core, the boss is set up on the inner core lower sealing plate and inner core upper sealing plate, the boss of inner core lower sealing plate and inner core upper sealing plate faces outward, the enclosure is fixedly connected with lower base, upper base, the carbon brush assembly is installed on the enclosure, the output shaft of servo motor is connected with the boss of inner core lower sealing plate through the connecting shaft, and the outer circular surface of inner core is provided with spiral saw teeth. The utility model avoids the running-in time after the carbon brush assembly replacement, and improves the radar starting rate.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush processing and manufacturing, and specifically to a device for processing the curvature of the working surface of a carbon brush. Technical Background

[0002] The basic principle of radar in the military air defense field is to transmit high-power microwave signals through a rotating antenna reflector, while simultaneously receiving wave signals reflected back from objects in the air. The spatial coordinates of the objects are then obtained through signal processing. The data is updated once the reflector rotates once, thus enabling the monitoring of objects in the air.

[0003] The mechanical structure for energy transmission mainly consists of two parts: the busbar ring and the carbon brush assembly. Its working principle is similar to that of a brushed motor. Due to its special technical specifications, the contact surface between the carbon brush and the busbar ring must meet certain requirements. Generally, the contact surface between the carbon brush and the busbar ring is arc-shaped to ensure that the cutoff area meets the set requirements, thereby achieving a reliable moving contact connection between the carbon brush and the busbar ring. During the manufacturing of the radar system and spare parts, the parameters of this component require extensive testing, running-in, and electrical debugging.

[0004] Replacing carbon brushes in radar units also requires adjusting parameters for a break-in period before putting the brushes back into service. This reduces the user experience and wastes time. Utility Model Content

[0005] To address the shortcomings of the prior art, this invention provides a carbon brush working surface curvature processing device. This invention can prefabricate carbon brushes for components in different bands and models of radar, solving the problem of low efficiency in adjusting telecommunications indicators in mechanical structural parts used for energy transmission.

[0006] The technical solution of this utility model is: a carbon brush working surface arc processing device, including a servo control unit, a servo motor, a motor bracket, a rotating device, a carbon brush assembly, and a coupling. The lower base of the rotating device is fixedly connected to the motor bracket, and the servo motor is fixed to the lower part of the motor bracket. The rotating device includes a lower base, end face bearings, a lower inner core sealing plate, a frame, an inner core, an upper inner core sealing plate, and an upper base. Two end face bearings are respectively installed in the lower base and the upper base. The lower inner core sealing plate and the upper inner core sealing plate are respectively threadedly fixed to the two end faces of the inner core. Bosses are provided on the lower inner core sealing plate and the upper inner core sealing plate, with the bosses facing outwards. The frame is fixedly connected to the lower base and the upper base. The carbon brush assembly is installed on the frame. The output shaft of the servo motor is connected to the boss of the lower inner core sealing plate through a coupling. Spiral saw teeth are provided on the outer circular surface of the inner core.

[0007] According to the above-described carbon brush working surface curvature processing device, the feature is that: six frames are provided.

[0008] According to the above-described carbon brush working surface curvature processing device, the feature is that: three spiral saw teeth are provided.

[0009] According to the above-described carbon brush working surface curvature processing device, the carbon brush assembly includes a connecting plate and carbon brush parts, and the connecting plate connects multiple carbon brush parts together through a T-slot.

[0010] According to the above-described carbon brush working surface curvature processing device, the carbon brush part is characterized in that: the carbon brush part is carbon brush part one, carbon brush part two, or a combination of carbon brush part one and carbon brush part two.

[0011] According to the above-described carbon brush working surface curvature processing device, the carbon brush part includes two carbon brush clamping components, each carbon brush clamping component includes a carbon brush, a spring and an adjusting nut, the adjusting nut compresses the spring, and the spring transmits the corresponding force to the carbon brush.

[0012] According to the above-described carbon brush working surface curvature processing device, the feature is that: the motor bracket is made of a circular aluminum plate and a circular tube welded together, and the hexagonal groove in the center of the disc is used for the rotation orientation of the rotating device.

[0013] According to the above-mentioned carbon brush working surface curvature processing device, the inner core material is 45 steel, and the surface of the spiral saw teeth is heat treated, with the surface hardness of the spiral saw teeth reaching 190-240HC.

[0014] This invention achieves the following beneficial effects: First, it saves resources occupied by the long-term commissioning and debugging of the entire radar system. Second, it improves the efficiency of spare parts manufacturing. Third, it avoids the break-in time after replacing the carbon brush assembly, thus increasing the radar's uptime. Attached Figure Description

[0015] Figure 1 This is an exploded view of the device for this utility model patent.

[0016] Figure 2 This is a schematic diagram of the working state of the device for this utility model patent.

[0017] Figure 3 This is a schematic diagram of the carbon brush assembly.

[0018] Figure 4 This is a structural schematic diagram of a carbon brush component.

[0019] Figure 5 This is a schematic diagram of the structure of carbon brush component two.

[0020] Figure 6 This is a schematic diagram of the carbon brush connection plate structure.

[0021] Figure 7 This is a schematic diagram of a carbon brush prefabrication.

[0022] Figure 8 This is a schematic diagram of the motor bracket structure.

[0023] Figure 9 This is a schematic diagram of the rotating device.

[0024] Figure 10 This is an exploded view of the rotating device.

[0025] Figure 11 This is a schematic diagram of the inner core structure.

[0026] Figure description: Servo control unit 1, servo motor 2, motor bracket 3, rotating device 4, lower base 41, end face bearing 42, inner core lower sealing plate 43, frame 44, inner core 45, inner core upper sealing plate 46, upper base 47, carbon brush assembly 5, carbon brush part one 51, carbon brush part two 52, connecting plate 53, coupling 6. Detailed Implementation

[0027] The prefabricated equipment is further explained below with reference to the accompanying drawings:

[0028] like Figures 1 to 11 As shown, this utility model discloses a carbon brush working surface curvature processing device, comprising a servo control unit 1, a servo motor 2, a motor bracket 3, a rotating device 4, a carbon brush assembly 5, and a coupling 6. The carbon brush assembly 5 is bolted to the side mounting port of the rotating device 4. The lower base 41 of the rotating device 4 is oriented to the hexagonal concave mounting surface of the motor bracket 3. The servo motor 2 is fixed to the lower part of the motor bracket 3, and the output shaft of the servo motor 2 is connected to the boss of the lower sealing plate 43 through the coupling 6, thereby realizing torque transmission between the inner core 45 of the rotating device 4 and the servo motor 2. The servo control unit 1 controls the servo motor 2 to rotate at a low speed, generally 10-50 rpm, to achieve synchronous processing of multiple carbon brush curvature surfaces.

[0029] like Figure 9 , Figure 10As shown, the rotating device 4 includes a lower base 41, end face bearings 42, a lower inner core sealing plate 43, a frame 44, an inner core 45, an upper inner core sealing plate 46, and an upper base 47. Two end face bearings 42 are respectively installed into the inner holes of the lower base 41 and the upper base 47. The lower inner core sealing plate 43 and the upper inner core sealing plate 46 are threadedly fixed to both ends of the inner core 45. Bosses are provided on the lower inner core sealing plate 43 and the upper inner core sealing plate 46. After installation, the bosses of the lower inner core sealing plate 43 and the upper inner core sealing plate 46 face outwards, meaning that after installation, the bosses of the lower inner core sealing plate 43 and the upper inner core sealing plate 46 are located within the inner ring of the bearings 42. The frame 44 is pre-tightened to the lower base 41 via a threaded connection. Multiple frames 44 are generally provided; this invention's device has six frames 44. The carbon brush assembly 5 is installed on the frames 44, thus allowing the processing of multiple carbon brushes to be completed at once. The upper base 47 is fixed to the frame 44 via a threaded connection. After the rotating device 4 of this utility model is installed, the inner core 45 is adjusted to ensure that there is no jamming during rotation before the thread tightening operation.

[0030] like Figure 11 As shown, the outer circular surface of the inner core 45 of this utility model is provided with helical saw teeth, and the helical saw teeth are... Figure 7 A schematic diagram of the carbon brush prefabrication (left). Surface A forms mutual friction, completing the prefabrication of the arc surface of the carbon brush part, ensuring that the contact area between the carbon brush and the busbar ring core meets the design requirements. Multiple spiral sawtooth teeth can be set, such as... Figure 11 Three are set in the middle.

[0031] like Figures 3 to 6 As shown, the carbon brush assembly 5 includes a connecting plate 53 and carbon brush components. The connecting plate 53 connects multiple carbon brush components together via T-slots. The carbon brush components can be carbon brush component one 51, carbon brush component two 52, or a combination of both. For example, a combination of carbon brush component one 51 and carbon brush component two 52 allows for the simultaneous breaking in of two different types of carbon brushes. Carbon brush component one 51 and carbon brush component two 52 can have the same structure, differing only in their dimensions. Figure 5 As shown, the carbon brush component 52 of this utility model includes two carbon brush clamping parts. Each carbon brush clamping part includes a carbon brush, a spring, and an adjusting nut. After installation, the adjusting nut compresses the spring, and the spring transmits the corresponding force to the carbon brush, thereby ensuring that the wear force is the same for different carbon brushes. If a torque wrench is used, it can be ensured that different carbon brush clamping parts are the same for the carbon brushes, ensuring that the carbon brushes have the same length, shape, and dimensions after prefabrication.

[0032] like Figure 8 As shown, the motor bracket 3 is made of a circular aluminum plate welded to a circular tube. The hexagonal groove in the center of the disc is used for the rotation orientation of the rotating device 4, and it is equipped with four threaded holes for mounting and fixing the servo motor. A through hole for the coupling 6 is reserved in the center. Stainless steel universal adjusting feet are installed at the bottom of the circular tube to adjust the level of the equipment.

[0033] Figure 11 The inner core is a 45 structure diagram. The material is 45 steel. The surface of the spiral saw teeth is heat-treated to achieve a surface hardness of 190-240HC. The maximum outer circle is consistent with the pre-made arc radius of the carbon brush, ensuring that the contact area between the carbon brush and the busbar ring core meets the design requirements.

[0034] The device of this invention can be applied to the prefabrication of multi-channel carbon brushes for radar. It has a simple, flexible and efficient structure and can prefabricate 6 carbon brush assemblies at a time. It can also freely combine and prefabricate carbon brush part 1 51 and carbon brush part 2 52.

[0035] This invention achieves the following objectives: First, it significantly reduces the debugging cycle of telecommunications indicators for core components, avoiding the resource consumption of prolonged radar system startup and debugging, thus improving efficiency by approximately 10 times. Second, for spare parts such as carbon brush assemblies, it avoids inconsistencies in telecommunications indicators caused by repeated disassembly and reassembly of carbon brushes, ensuring high reliability of telecommunications indicators.

Claims

1. A device for machining the curvature of a carbon brush working surface, comprising a servo control unit, a servo motor, a motor bracket, a rotating device, a carbon brush assembly, and a coupling, wherein the lower base of the rotating device is fixedly connected to the motor bracket, and the servo motor is fixed to the lower part of the motor bracket, characterized in that: The rotating device includes a lower base, end face bearings, a lower inner core sealing plate, a frame, an inner core, an upper inner core sealing plate, and an upper base. Two end face bearings are respectively installed in the lower base and the upper base. The lower inner core sealing plate and the upper inner core sealing plate are respectively threaded to the two end faces of the inner core. The lower inner core sealing plate and the upper inner core sealing plate are provided with bosses, with the bosses of the lower inner core sealing plate and the upper inner core sealing plate facing outwards. The frame is fixedly connected to the lower base and the upper base. The carbon brush assembly is installed on the frame. The output shaft of the servo motor is connected to the boss of the lower inner core sealing plate through a coupling. The outer circular surface of the inner core is provided with helical saw teeth.

2. The carbon brush working surface curvature processing device according to claim 1, characterized in that: Six frames are set.

3. The carbon brush working surface curvature processing device according to claim 1, characterized in that: Three spiral saw teeth are set.

4. The carbon brush working surface curvature processing device according to claim 1, characterized in that: The carbon brush assembly includes a connecting plate and carbon brush components. The connecting plate connects multiple carbon brush components together via T-slots.

5. The carbon brush working surface curvature processing device according to claim 4, characterized in that: The carbon brush component is carbon brush component one, carbon brush component two, or a combination of carbon brush component one and carbon brush component two.

6. The carbon brush working surface curvature processing device according to claim 4, characterized in that: The carbon brush component includes two carbon brush clamping parts. Each carbon brush clamping part includes a carbon brush, a spring, and an adjusting nut. The adjusting nut compresses the spring, and the spring transmits the corresponding force to the carbon brush.

7. The carbon brush working surface curvature processing device according to claim 1, characterized in that: The motor bracket is made of circular aluminum plate and circular tube welded together, and the hexagonal groove in the center of the disc is used for the rotation orientation of the rotating device.

8. The carbon brush working surface curvature processing device according to claim 1, characterized in that: The inner core material is 45 steel, and the surface of the spiral saw teeth is heat-treated, with a surface hardness of 190-240HC.

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