A carbon brush electrical slip ring

Abstract

The utility model relates to electrical components technical field especially relates to a carbon brush electric slip ring, including shell and the end cap of installation in the shell end part, the shell is rotationally arranged with the conductive component, and the outside of conductive component is equipped with two groups of symmetrical setting carbon brush assembly and self -cleaning component, and carbon brush assembly includes the fixed frame of fixed connection in the shell, and the fixed frame is fixedly connected with the carrier plate, and the bottom of carrier plate is fixedly equipped with a plurality of locating blocks, and the inboard of locating block is installed with the brush holder, and the inboard wall of brush holder both ends is fixedly equipped with carbon brush block, and the brush holder is still connected with the wire, and the wire extends to the shell outside, the carbon brush electric slip ring, its advantage is to install the abrasion monitoring unit outside the brush holder, to the intuitive mode prompt staff needs to replace carbon brush assembly, to avoid the problem that carbon brush block wears excessively, and have temperature monitoring function, can avoid because temperature is too high and causes carbon brush block wear aggravation, the trouble such as conductive ring damage, prevent equipment downtime or accident expansion.

Description

Technical Field

[0001] This utility model relates to the field of electrical components technology, specifically a carbon brush slip ring. Background Technology

[0002] A carbon brush slip ring is a rotatable mechanical component used to transmit electricity and signals from a fixed position to a rotating position. It typically consists of a conductive ring, brushes, bearings, and a housing. The conductive ring is mounted on a rotating shaft, and the carbon brushes contact the conductive ring, transmitting electricity and signals through friction. Its main function is to stably transmit electricity and signals between rotating and fixed components. In existing carbon brush slip rings, the carbon brushes gradually wear down during operation due to contact with the conductive ring. Traditional carbon brush slip rings lack effective and intuitive methods for monitoring and indicating carbon brush wear. When the carbon brushes wear excessively, it not only leads to increased contact resistance and reduced transmission efficiency, but may also cause overheating, arcing, and other problems, seriously affecting the normal operation of equipment and even causing equipment damage. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a carbon brush slip ring that solves the technical problem of the lack of wear monitoring function in existing carbon brush slip rings.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a carbon brush slip ring, including a housing and an end cap installed at the end of the housing. A conductive component is rotatably arranged inside the housing. Two sets of symmetrically arranged carbon brush components and a self-cleaning component are provided on the outside of the conductive component. The carbon brush component includes a fixing frame fixed inside the housing. A carrier plate is fixed on the fixing frame. Multiple positioning blocks are fixed on the bottom of the carrier plate. A brush holder is installed on the inner side of the positioning block. Carbon brush blocks are fixed on the inner sidewalls at both ends of the brush holder. A wire is also connected to the brush holder and extends to the outside of the housing.

[0005] A wear monitoring unit that contacts the brush holder is installed on the side wall of the carrier plate. The wear monitoring unit includes an elastic sheet installed on the side wall of the carrier plate, and a trigger is fixed at one end of the elastic sheet.

[0006] Preferably, the elastic sheet consists of a fixing part, a bending part, and an arc-shaped part. The fixing part is fixedly connected to the carrier plate, the bending part is bent inward, the arc-shaped part contacts the brush holder surface and bends outward, and the trigger is fixed on the arc-shaped part.

[0007] Preferably, the trigger includes a cylinder fixed to one end of an elastic sheet, a pressure block movably connected inside the cylinder, one end of the pressure block being hemispherical, the other end of the pressure block being elastically connected through the inner wall of the spring cylinder, and a micro switch also being installed inside the cylinder.

[0008] Preferably, a contact temperature probe is installed on the inner wall of the brush holder near the carbon brush block.

[0009] Preferably, the carrier plate is equipped with an alarm that is electrically connected to a micro switch and a contact temperature probe.

[0010] Preferably, the conductive component includes a rotating shaft rotatably connected inside the housing, and multiple sets of conductive rings that contact the carbon brush block are installed on the outer wall of the rotating shaft, with multiple insulating rings provided between the multiple sets of conductive rings.

[0011] Preferably, the self-cleaning component includes a fixing plate installed inside the housing, and multiple sets of brush blocks corresponding to the positions of the conductive ring are fixed on the fixing plate.

[0012] By employing the above technical solution, this utility model provides a carbon brush slip ring, which has at least the following beneficial effects:

[0013] 1. The advantage of this carbon brush slip ring is that a wear monitoring unit is installed on the outside of the brush holder. Utilizing the design of the arc-shaped part at the tail of the elastic plate, when the carbon brush block gradually wears and becomes thinner, the elastic plate gradually restores its deformation. At this time, the trigger at the tail of the elastic plate will contact the brush holder, so that when the carbon brush block wears to a certain extent, an alarm will be issued to intuitively remind the staff that the carbon brush assembly needs to be replaced to avoid the problem of excessive wear of the carbon brush block.

[0014] 2. This carbon brush slip ring, by setting a contact temperature probe, can monitor the temperature of the carbon brush block in real time and continuously. When the temperature of the carbon brush block approaches or exceeds the normal range, it can quickly issue an alarm to remind the staff to deal with it in time, so as to avoid failures such as accelerated wear of carbon brush block and damage to conductive ring caused by excessive temperature, and prevent equipment shutdown or the escalation of accidents.

[0015] 3. This carbon brush slip ring, by setting a self-cleaning component, allows the brush to clean the carbon powder adhering to the surface of the conductive ring in a timely manner, preventing the problem of increased surface roughness of the conductive ring caused by carbon powder accumulation, extending the service life of the conductive ring and carbon brush block, and reducing maintenance and replacement costs. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the conductive component of this utility model;

[0020] Figure 4 This is a schematic diagram of the carbon brush assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the carrier plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the wear monitoring unit of this utility model;

[0023] Figure 7 This is a cross-sectional view of the trigger element of this utility model.

[0024] Figure 8 This is a schematic diagram of the structure of the self-cleaning component of this utility model.

[0025] Figure label:

[0026] 1. Outer shell; 2. End cap; 3. Conductive component; 31. Rotating shaft; 32. Conductive ring; 33. Insulating ring; 4. Carbon brush assembly; 41. Fixing bracket; 42. Carrier plate; 43. Positioning block; 44. Brush holder; 45. Carbon brush block; 46. Wear monitoring unit; 461. Elastic sheet; 4611. Fixing part; 4612. Bending part; 4613. Arc-shaped part; 462. Trigger; 4621. Cylinder; 4622. Pressure block; 4623. Spring; 4624. Micro switch; 47. Contact temperature probe; 48. Alarm; 49. Wire; 5. Self-cleaning component; 51. Fixing plate; 52. Brush block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Carbon brush slip rings are key electromechanical components used to achieve power and signal transmission between rotating and stationary parts. They are widely used in equipment requiring dynamic conductivity, such as industrial motors, wind turbines, robots, and automated production lines. Their core function is to maintain a stable electrical connection during rotational motion, solving the problem of power and signal transmission between moving and stationary components.

[0029] Due to the technical deficiency of existing technologies in lacking wear monitoring functionality, please refer to... Figures 1-8This embodiment provides a carbon brush slip ring that will issue an alarm when the carbon brush block 45 wears to a certain extent, visually prompting the operator to replace the carbon brush assembly 4 to avoid excessive wear of the carbon brush block 45. The carbon brush slip ring includes a housing 1 and an end cap 2 installed at the end of the housing 1. A conductive component 3 is rotatably disposed inside the housing 1. Two sets of symmetrically arranged carbon brush assemblies 4 and a self-cleaning component 5 are provided on the outer side of the conductive component 3. The carbon brush assembly 4 includes a fixing frame 41 fixed inside the housing 1. A carrier plate 42 is fixedly fixed on the fixing frame 41. Multiple positioning blocks 43 are fixedly disposed at the bottom of the carrier plate 42. A brush holder 44 is installed on the inner side of the positioning block 43. Carbon brush blocks 45 are fixed on the inner sidewalls at both ends of the brush holder 44. A wire 49 is also connected to the brush holder 44 and extends to the outside of the housing 1. The conductive component 3 and the carbon brush assembly 4 cooperate to form a power and signal transmission structure, thereby achieving a stable electrical connection during rotation. The positioning blocks 43 can be used to position and install the brush holder 44 to ensure accurate positioning of the brush holder 44.

[0030] In existing carbon brush slip rings, the carbon brush gradually wears down during operation as it contacts the conductive ring 32. Traditional carbon brush slip rings lack an effective and intuitive method for monitoring and indicating carbon brush wear. To address this issue, a wear monitoring unit 46 is installed on the side wall of the carrier plate 42, contacting the brush holder 44. The wear monitoring unit 46 includes an elastic sheet 461 mounted on the side wall of the carrier plate 42, with a trigger element 462 fixed at one end. Furthermore, the elastic sheet 461 consists of a fixing part 4611, a bending part 4612, and an arc-shaped part 4613. The fixing part 4611 is fixed to the carrier plate 42, the bending part 4612 bends inward, and the arc-shaped part 4613... 13 contacts the surface of the brush holder 44 and bends outward, with the trigger 462 fixed on the arc-shaped portion 4613. Due to the elasticity of the brush holder 44 itself, as the carbon brush block 45 gradually wears down, the brush holder 44 will gradually bend and move inward. At this time, the elastic piece 461 gradually recovers its deformation. Due to the design of the arc-shaped portion 4613 at the tail of the elastic piece 461, when the carbon brush block 45 gradually wears down and becomes thinner, the tail of the elastic piece 461 will gradually approach the brush holder 44. When the trigger 462 contacts the brush holder 44 and forms a compression, an alarm will be sounded to visually remind the staff that the carbon brush assembly 4 needs to be replaced to avoid the problem of excessive wear of the carbon brush block 45.

[0031] Furthermore, to trigger an alarm for excessive wear of carbon brush block 45, please refer to... Figure 7The trigger 462 includes a cylinder 4621 fixed to one end of an elastic sheet 461. A pressure block 4622 is movably connected inside the cylinder 4621. One end of the pressure block 4622 is hemispherical, and the other end of the pressure block 4622 is elastically connected to the inner wall of the cylinder 4621 via a spring 4623. A micro switch 4624 is also installed inside the cylinder 4621. The pressure block 4622 in the trigger 462 will contact the brush holder 44. When the brush holder 44 continues to bend and move inward, the elastic sheet 461 will elastically reset, which will cause the pressure block 4622 to be squeezed back into the cylinder 4621 by the brush holder 44. Then the pressure block 4622 will trigger the micro switch 4624 and issue an alarm.

[0032] The existing carbon brush block 45 is in constant contact with the conductive ring 32, which generates heat at the contact point. When the temperature is too high, it can cause accelerated wear of the carbon brush block 45 and damage to the conductive ring 32. To address this issue, a contact-type temperature probe 47 is installed on the inner wall of the brush holder 44 near the carbon brush block 45. This probe can monitor the temperature of the carbon brush block 45 in real time and continuously. When the temperature of the carbon brush block 45 approaches or exceeds the normal range, it can quickly issue an alarm to remind staff to take timely action and prevent accelerated wear of the carbon brush block 45 and damage to the conductive ring 32 caused by excessive temperature, thus preventing equipment shutdown or the escalation of the accident.

[0033] Furthermore, to provide alarms for excessive wear and overheating, an alarm 48 is installed on the carrier plate 42, which is electrically connected to the micro switch 4624 and the contact temperature probe 47. When the micro switch 4624 and the contact temperature probe 47 are triggered, alarm information or alarm pop-ups can be sent to the inside of the equipment through the alarm 48.

[0034] In existing slip rings, short circuits can easily occur between adjacent conductive rings (32 rings) due to dust and carbon buildup, leading to signal interference or equipment malfunction. For solutions to this problem, please refer to [reference needed]. Figure 3 The conductive component 3 includes a rotating shaft 31 rotatably connected inside the housing 1. Multiple sets of conductive rings 32 that contact the carbon brush block 45 are installed on the outer wall of the rotating shaft 31, and multiple insulating rings 33 are provided between the multiple sets of conductive rings 32. The insulating rings 33 can effectively prevent short circuits between rings and improve the stability of multi-channel signal transmission.

[0035] Dust or carbon buildup on the surface of the existing conductive ring 32 can increase contact resistance, leading to overheating and signal distortion. To address this issue, the self-cleaning component 5 includes a fixing plate 51 installed inside the housing 1. Multiple sets of brush blocks 52 corresponding to the positions of the conductive ring 32 are fixed on the fixing plate 51. The brush blocks 52 automatically clean surface impurities as the conductive ring 32 rotates, reducing the risk of poor contact.

[0036] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon brush slip ring, comprising a housing (1) and an end cap (2) mounted on the end of the housing (1), characterized in that: The conductive component (3) is rotatably arranged inside the outer shell (1). Two sets of symmetrically arranged carbon brush components (4) and self-cleaning components (5) are arranged on the outside of the conductive component (3). The carbon brush component (4) includes a fixed frame (41) fixed inside the outer shell (1). A carrier plate (42) is fixed on the fixed frame (41). Multiple positioning blocks (43) are fixed at the bottom of the carrier plate (42). A brush holder (44) is installed on the inner side of the positioning block (43). Carbon brush blocks (45) are fixed on the inner sidewalls at both ends of the brush holder (44). A wire (49) is also connected to the brush holder (44). The wire (49) extends to the outside of the outer shell (1). A wear monitoring unit (46) that contacts the brush holder (44) is installed on the side wall of the carrier plate (42). The wear monitoring unit (46) includes an elastic sheet (461) installed on the side wall of the carrier plate (42), and a trigger (462) is fixed at one end of the elastic sheet (461).

2. The carbon brush slip ring according to claim 1, characterized in that: The elastic sheet (461) is composed of a fixing part (4611), a bending part (4612) and an arc-shaped part (4613). The fixing part (4611) is fixed to the carrier plate (42), the bending part (4612) bends inward, the arc-shaped part (4613) contacts the surface of the brush holder (44) and bends outward, and the trigger (462) is fixed on the arc-shaped part (4613).

3. The carbon brush slip ring according to claim 2, characterized in that: The trigger (462) includes a cylinder (4621) fixed to one end of an elastic sheet (461), a pressure block (4622) movably connected inside the cylinder (4621), one end of the pressure block (4622) being hemispherical, and the other end of the pressure block (4622) being elastically connected to the inner wall of the cylinder (4621) via a spring (4623), and a micro switch (4624) is also installed inside the cylinder (4621).

4. The carbon brush slip ring according to claim 3, characterized in that: A contact temperature probe (47) is installed on the inner wall of the brush holder (44) near the carbon brush block (45).

5. The carbon brush slip ring according to claim 4, characterized in that: An alarm (48) electrically connected to a micro switch (4624) and a contact temperature probe (47) is mounted on the carrier plate (42).

6. The carbon brush slip ring according to claim 1, characterized in that: The conductive component (3) includes a rotating shaft (31) rotatably connected inside the housing (1). Multiple sets of conductive rings (32) that contact the carbon brush block (45) are installed on the outer wall of the rotating shaft (31), and multiple insulating rings (33) are provided between the multiple sets of conductive rings (32).

7. The carbon brush slip ring according to claim 6, characterized in that: The self-cleaning component (5) includes a fixing plate (51) installed inside the housing (1), and multiple sets of brush blocks (52) corresponding to the positions of the conductive ring (32) are fixed on the fixing plate (51).

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