Carbon brush structure with conductive function

By designing a carbon brush structure with conductive function, and using the outer shell to be threadedly connected to the engine flywheel housing, the carbon brush contacts the flywheel, and the wire conducts the current, thus solving the problem that the carbon brush cannot conduct current, avoiding damage to the engine shaft system, and extending the life of shaft system components.

CN223978270UActive Publication Date: 2026-03-06GUANGXI YUCHAI POWER MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520628070.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-06
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing carbon brush structures cannot effectively conduct current or voltage generated in generator sets, leading to damage to the engine shaft system.

Method used

A conductive carbon brush structure was designed, including a housing, a carbon brush, a spring, and a wire. The housing is threadedly connected to the engine flywheel housing, the carbon brush contacts the flywheel, the spring is pressed, and the wire guides the current to the housing to conduct shaft current. The housing is made of a metal material and is conductive.

Benefits of technology

It effectively removes residual current or voltage from the engine shaft system, preventing shaft damage and extending the service life of engine shaft components. It has a wide range of applications and is highly practical.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223978270U_ABST
    Figure CN223978270U_ABST
Patent Text Reader

Abstract

The utility model discloses a carbon brush structure with a conductive function, belongs to the technical field of engines, and solves the problem that a shaft system of an existing engine is easy to damage. The carbon brush structure comprises a shell, the shell is installed on an engine flywheel shell, an installation hole is formed in the middle of the shell, a carbon brush is movably inserted into the installation hole, a spring is arranged at one end of the carbon brush, the spring is installed between the carbon brush and the shell, and the other end of the carbon brush makes contact with a flywheel. A wire hole communicated with the mounting hole is formed in one end of the shell, a wire is inserted into the wire hole, one end of the wire is in contact with the carbon brush, and the other end of the wire penetrates through the wire hole and then extends to the outer side of the shell to be connected with the shell. The carbon brush structure with the conductive function provided by the utility model has the conductive function, reduces the influence of current on a shaft system, avoids the damage of an engine shaft system, and has the characteristics of wide application range and strong practicability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to a carbon brush structure with conductive function. Background Technology

[0002] Carbon brushes, also known as electric brushes, are widely used in many electrical devices as a sliding contact component. The main materials used in carbon brushes are graphite, resin-impregnated graphite, and metallic (including copper and silver) graphite. Carbon brushes are devices that transmit current between the stationary and rotating parts of electric motors, generators, or other rotating machinery. They are generally made of pure carbon with a coagulant.

[0003] In the matching generator set, the shaft system of the engine is connected to the shaft system of the motor. During the operation of the entire unit, the motor shaft will generate current or voltage. Although the motor itself is equipped with brushes, there is a possibility that the current may not be completely carried away. If it cannot be carried away in time, it will cause certain damage to the shaft system (bearings) of the engine. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing a carbon brush structure with conductive function. This structure has conductive function, reduces the impact of current on the shaft system, avoids damage to the engine shaft system, and has the characteristics of wide applicability and strong practicality.

[0005] The technical solution adopted by this utility model is: a carbon brush structure with conductive function, including a shell, the shell being installed on the engine flywheel housing, a mounting hole being opened in the middle of the shell, a carbon brush being movably inserted into the mounting hole, a spring being provided at one end of the carbon brush, the spring being installed between the carbon brush and the shell, the other end of the carbon brush contacting the flywheel, a wire hole being opened at one end of the shell communicating with the mounting hole, a wire being inserted into the wire hole, one end of the wire contacting the carbon brush, and the other end of the wire passing through the wire hole and extending to the outside of the shell to connect thereto.

[0006] As a further improvement, one end of the outer casing is provided with a connection hole, and the wire passes through the wire hole and is inserted into the connection hole.

[0007] Furthermore, one end of the outer side of the outer casing is provided with an external thread, and the outer casing is threadedly connected to the engine flywheel housing.

[0008] Furthermore, the other end of the outer side of the outer casing is provided with multiple slits for clamping the wrench.

[0009] Furthermore, a sealing cover is provided between the outer casing and the carbon brush, and the carbon brush and the sealing cover are movably connected.

[0010] Furthermore, one end of the carbon brush is provided with multiple friction carbon brush particles arranged in a multi-layered, surrounding pattern.

[0011] Furthermore, sound-absorbing cotton is provided on the outer side of the carbon brush and spring, and the sound-absorbing cotton is arranged on the mounting hole.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This utility model discloses a carbon brush structure with conductive function. The outer shell is threaded onto the engine flywheel housing, and the head of the carbon brush contacts the flywheel. The outer shell is made of conductive metal. A wire connects the carbon brush to the outer shell. A spring presses the carbon brush firmly, ensuring it remains in contact with the flywheel. During engine operation, if current flows into the engine shaft system, it passes through the flywheel to the carbon brush, then through the brush to the wire, which guides the current to the outer shell, and finally to the engine flywheel housing. This effectively removes residual current / voltage generated in the shaft system during operation, preventing damage to the engine shaft system, reducing the impact of current on the shaft system, and effectively extending the service life of engine shaft system components. It is highly practical and has a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of this utility model in actual application.

[0019] The components are: 1-outer shell, 2-mounting hole, 3-carbon brush, 4-external thread, 5-sound insulation cotton, 6-spring, 7-wire hole, 8-wire, 9-connection hole, 10-cut, 11-sealing cover, 12-flywheel, 13-engine flywheel housing, 14-friction carbon brush particles. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0021] See Figure 1-4As shown, this utility model discloses a carbon brush structure with conductive function, including a housing 1, which is mounted on an engine flywheel housing 13. A mounting hole 2 is provided in the middle of the housing 1, and a carbon brush 3 is movably inserted into the mounting hole 2. A spring 6 is provided at one end of the carbon brush 3, and the spring 6 is installed between the carbon brush 3 and the housing 1. The other end of the carbon brush 3 contacts the flywheel 12. A wire hole 7 communicating with the mounting hole 2 is provided at one end of the housing 1, and a wire 8 is inserted into the wire hole 7. One end of the wire 8 contacts the carbon brush 3, and the other end of the wire 8 passes through the wire hole 7 and extends to the outside of the housing 1 to connect with it. By threading the housing 1 onto the engine flywheel housing 13, the head of the carbon brush 3 contacts the engine flywheel 12. The housing 1 is... Metal materials are conductive. The wire 8 connects the carbon brush 3 to the housing 1. The spring 6 presses the carbon brush 3 tightly so that it is always in contact with the flywheel 12. During the operation of the engine assembly, if current flows into the engine shaft system, the current flows through the flywheel 12 to the carbon brush 3, and through the carbon brush 3 to the wire 8. The wire 8 leads the current to the housing 1. Alternatively, the carbon brush 3 can be made to contact other rotating parts of the shaft system, so that the current flows through the housing 1 to the engine flywheel housing 13. This timely conduction of residual current or voltage generated in the entire shaft system during operation can prevent damage to the engine shaft system, reduce the impact of current on the shaft system, and effectively improve the service life of engine shaft system components.

[0022] Specifically, one end of the outer casing 1 is provided with a connection hole 9. The wire 8 passes through the wire hole 7 and is inserted into the connection hole 9. By inserting it, the wire 8 and the outer casing 1 can be quickly connected together, which is conducive to rapid assembly.

[0023] Priority is given that one end of the outer side of the outer casing 1 is provided with an external thread 4, and the outer casing 1 is threadedly connected to the engine flywheel housing 13. The threaded connection facilitates quick installation and subsequent disassembly and replacement.

[0024] Furthermore, the other end of the outer side of the housing 1 is provided with multiple slits 10 for wrench clamping, which facilitates the operator to install and disassemble the housing 1 by using the wrench clamping slits 10.

[0025] Furthermore, a sealing cover 11 is provided between the outer casing 1 and the carbon brush 3. The carbon brush 3 and the sealing cover 11 are movably connected. The sealing cover 11 supports the carbon brush 3 and also seals it, effectively preventing dust from falling into the mounting hole 2.

[0026] Furthermore, one end of the carbon brush 3 is provided with multiple friction carbon brush particles 14 arranged in a multi-layered ring. The graphite component in the carbon brush particles has good lubrication properties, which can reduce friction and wear and extend the service life of the carbon brush.

[0027] Furthermore, sound insulation cotton 5 is provided on the outside of carbon brush 3 and spring 6. The sound insulation cotton 5 is arranged on the mounting hole 2. The sound insulation cotton 5 plays the role of sound insulation and noise reduction. While the spring 6 presses the carbon brush 3, the spring 6 has a good shock absorption and buffering effect during use, which is conducive to noise optimization.

[0028] In this embodiment, a carbon brush structure with conductive function is used by threading the outer shell 1 onto the engine flywheel housing 13. The head of the carbon brush 3 contacts the engine flywheel 12. The outer shell 1 is made of a conductive metal material. The wire 8 connects the carbon brush 3 to the outer shell 1. The spring 6 presses the carbon brush 3 firmly, ensuring it remains in contact with the flywheel 12. During engine operation, if current flows into the engine shaft system, the current flows through the flywheel 12 to the carbon brush 3, then through the carbon brush 3 to the wire 8, which then guides the current to the outer shell 1, and finally to the engine flywheel housing 13. This effectively removes residual current / voltage generated in the entire shaft system during operation, preventing damage to the engine shaft system, reducing the impact of current on the shaft system, and effectively improving the service life of engine shaft system components. This invention, a carbon brush structure with conductive function, reduces the impact of current on the shaft system, prevents damage to the engine shaft system, and has the characteristics of wide applicability and strong practicality.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A carbon brush structure with conductive function, characterized in that, The utility model provides a carbon brush, including the shell (1), the shell (1) is installed on the engine flywheel shell (13), the shell (1) middle position is seted up with the installation hole (2), the installation hole (2) is movably inserted with carbon brush (3), one end of carbon brush (3) is equipped with spring (6), the spring (6) is installed between carbon brush (3) and shell (1), the other end of carbon brush (3) is in contact with flywheel (12), one end of shell (1) is seted up with the wire hole (7) of communication with installation hole (2), wire (8) is inserted in wire hole (7), one end of wire (8) is in contact with carbon brush (3), the other end of wire (8) extends to the outside of shell (1) after passing through wire hole (7) and is connected therewith.

2. The carbon brush structure with electric conduction function according to claim 1, characterized in that, One end of shell (1) is equipped with connecting hole (9), and wire (8) is inserted in connecting hole (9) after passing through wire hole (7).

3. The carbon brush structure with electric conduction function according to claim 1, characterized in that, One end of shell (1) is equipped with external thread (4), and shell (1) is screwed with engine flywheel shell (13).

4. The carbon brush structure with electric conduction function according to claim 3, characterized in that, The other end of shell (1) is equipped with a plurality of cutouts (10) for spanner clamping.

5. The carbon brush structure with electric conduction function according to claim 1, characterized in that, Sealing cover (11) is arranged between shell (1) and carbon brush (3), and carbon brush (3) is movably inserted in sealing cover (11).

6. The carbon brush structure with electric conduction function according to claim 1, characterized in that, One end of carbon brush (3) is equipped with a plurality of friction carbon brush particles (14) arranged in multiple layers and surrounded.

7. The carbon brush structure with electric conduction function according to claim 1, characterized in that, Soundproof cotton (5) is arranged outside carbon brush (3) and spring (6) and on installation hole (2).