Replaceable carbon brush holder

Abstract

The utility model provides a replaceable carbon brush holder, including buckle base, buckle base is detachably connected with positioning column, and the carbon brush mounting seat is used for the sleeve joint on the positioning column, and the carbon brush mounting cylinder is equipped on the carbon brush mounting seat, and the pressing plate is equipped on the positioning column, and the pressing plate is used for fixing the carbon brush mounting seat with buckle base cooperation, the utility model discloses buckle base and the detachable connection of positioning column, the split type design and the screw thread cooperation structure of collocation first clamping hoop, second clamping hoop realize quick assembly and disassembly of each component.

Description

Technical Field

[0001] This utility model belongs to the field of carbon brush mounting structure, and specifically relates to a replaceable carbon brush holder. Background Technology

[0002] During the operation of equipment such as motors and generators, carbon brushes are key components, playing a vital role in conducting current and ensuring the stability of electrical contacts. Carbon brushes need to be installed and fixed using brush holders to ensure stable contact and reliable operation with corresponding contact components (such as commutators and slip rings).

[0003] However, existing carbon brush holders have many shortcomings: On the one hand, the overall structure of traditional carbon brush holders is mostly a one-piece design. When the carbon brush mounting base, carbon brush, and other components are worn or damaged and need to be replaced, the entire holder often needs to be disassembled or even replaced, which is cumbersome and not only increases maintenance time and cost, but may also affect the stability of other components of the equipment due to frequent disassembly and assembly. On the other hand, the adaptability and stability of carbon brush installation are poor. Some holders are difficult to flexibly adapt to the installation requirements of different numbers and specifications of carbon brushes. During operation, carbon brushes are prone to positional displacement due to insecure installation, resulting in poor contact, affecting current conduction, and even causing equipment failure. At the same time, there is little optimization design for the carbon brush working environment. Carbon dust and other impurities generated by carbon brush wear are prone to accumulate, which will increase contact resistance and reduce the service life of carbon brushes. Moreover, there is a lack of effective insulation, wire connection and installation and debugging convenience design, which cannot fully meet the requirements of efficient, stable and safe operation of equipment.

[0004] Therefore, there is an urgent need for a replaceable carbon brush holder with a reasonable structural design that facilitates component replacement, adapts to different carbon brush installation requirements, ensures stable carbon brush operation, and optimizes the working environment, in order to solve the shortcomings of existing technologies. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a replaceable carbon brush holder, which achieves quick assembly and disassembly of each component through the detachable connection between the buckle base and the positioning pin, combined with the split design of the first clamp and the second clamp and the threaded engagement structure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A replaceable carbon brush holder includes a snap-fit ​​base, which is detachably connected to a positioning pin. The positioning pin is used to attach a carbon brush mounting seat, which is provided with a carbon brush mounting cylinder. The positioning pin is provided with a pressure plate, which cooperates with the snap-fit ​​base to fix the carbon brush mounting seat.

[0008] Preferably, the buckle base includes a first clamp and a second clamp, which are connected by a locking bolt.

[0009] Preferably, the second clamp is connected to the internal threaded cylinder, and the internal threaded cylinder is threadedly engaged with the positioning insert.

[0010] Preferably, the carbon brush mounting base is provided with a sleeve, which is used to fit onto the positioning pin, and the internal threaded sleeve cooperates with the pressure plate to clamp the carbon brush mounting base.

[0011] Preferably, the carbon brush mounting base has multiple carbon brush mounting cylinders arranged in parallel.

[0012] Preferably, the number of carbon brush mounting cylinders is three, and the carbon brush mounting cylinders are square cylinders with spring clip mounting holes.

[0013] Preferably, the buckle base is made of insulating material.

[0014] Preferably, the carbon brush mounting base is provided with a wire mounting hole for connecting the carbon brush wire to the carbon brush via a bolt.

[0015] Preferably, the carbon brush mounting cylinder is connected to the air blowing pipe.

[0016] Preferably, the top of the positioning post is provided with a rotating cap.

[0017] The present invention can achieve the following beneficial effects:

[0018] 1. The detachable connection between the buckle base and the positioning pin, combined with the split design of the first clamp and the second clamp and the threaded engagement structure, enables quick assembly and disassembly of each component.

[0019] 2. The carbon brush mounting base uses a sleeve to connect to the positioning pin, combined with the axial clamping fit between the pressure plate and the internal threaded cylinder, providing dual radial and axial positioning of the carbon brush mounting base. This effectively prevents the carbon brush from shifting position due to vibration and impact during operation.

[0020] 3. The carbon brush mounting base can be equipped with multiple parallel carbon brush mounting cylinders, and the cylinder shape and quantity (such as three square cylinders) can be flexibly designed as needed to adapt to different application scenarios such as multiple carbon brushes in parallel (such as high current equipment).

[0021] 4. The design of connecting the carbon brush mounting cylinder with the air blowing pipe allows the carbon brush mounting area to be swept by airflow in real time, promptly removing carbon powder, external dust and other impurities generated by carbon brush wear. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Fig. 1 This is the front view of the present utility model;

[0024] Fig. 2 This is a side view of the present invention;

[0025] Fig. 3 This is a structural diagram of the carbon brush mounting cylinder of this utility model.

[0026] In the diagram: 1. Buckle base; 101. First clamp; 102. Second clamp; 103. Locking bolt; 104. Internal threaded cylinder; 2. Positioning pin; 3. Carbon brush mounting base; 4. Carbon brush mounting cylinder; 5. Pressure plate; 6. Carbon brush; 7. Air blowing pipe; 8. Rotating cap. Detailed Implementation

[0027] Preferred solutions include Figs. 1 to 3 As shown, a replaceable carbon brush holder includes a snap-fit ​​base 1, which is detachably connected to a positioning pin 2. The positioning pin 2 is used to attach a carbon brush mounting base 3. The carbon brush mounting base 3 is provided with a carbon brush mounting cylinder 4. The positioning pin 2 is provided with a pressure plate 5, which cooperates with the snap-fit ​​base 1 to fix the carbon brush mounting base 3.

[0028] The positioning pins provide an installation reference and axial limit for the carbon brush mount. The carbon brush mount integrates the carbon brush mounting sleeve and is the direct carrier for carbon brush assembly. The pressure plate, together with the snap-fit ​​base, uses axial clamping force to stably restrict the carbon brush mount in the set position, ensuring accurate positioning and stable force on the carbon brush during operation.

[0029] Furthermore, the buckle base 1 includes a first clamp 101 and a second clamp 102, which are connected by a locking bolt 103.

[0030] The snap-fit ​​base is a split structure consisting of a first clamp and a second clamp, which are connected and secured with locking bolts. This design is suitable for applications requiring a clamping fit, such as cylindrical mounting bases. During installation, the two clamps can be first attached to the base, and then tightened with bolts. This simplifies the installation process and allows for adjustment of the clamp gap to accommodate mounting bases within a certain dimensional tolerance range, improving versatility and installation flexibility.

[0031] Furthermore, the second clamp 102 is connected to the internal threaded cylinder 104, and the internal threaded cylinder 104 is threadedly engaged with the positioning insert 2.

[0032] The second clamp integrates an internally threaded cylinder, forming a threaded pair with the external thread of the positioning pin. The threaded engagement allows for adjustable connection between the clamp base and the positioning pin. By rotating the positioning pin or the clamp base, the axial relative position of the two can be precisely adjusted, thus adapting to the installation requirements of carbon brush mounting seats of different thicknesses. At the same time, the self-locking property of the threaded connection ensures the structural stability after connection and prevents loosening due to vibration during operation.

[0033] Furthermore, the carbon brush mounting base 3 is provided with a sleeve, which is used to fit onto the positioning pin 2, and the internal threaded cylinder 104 cooperates with the pressure plate 5 to clamp the carbon brush mounting base 3.

[0034] The carbon brush mounting base is equipped with a sleeve, which is fitted onto the positioning pin in a sleeve-like manner to achieve rapid radial positioning, making the assembly of the mounting base and the positioning pin more convenient and easier to ensure coaxiality. The internal threaded cylinder and the pressure plate apply clamping force to the carbon brush mounting base fitted onto the positioning pin from both axial ends, forming axial constraint.

[0035] Furthermore, the carbon brush mounting base 3 has multiple carbon brush mounting cylinders 4 arranged in parallel.

[0036] Multiple parallel carbon brush mounting cylinders are arranged on the carbon brush mounting base, allowing for the simultaneous installation of multiple sets of carbon brushes. This is applicable to scenarios requiring multiple carbon brushes to operate in parallel (such as in high-current equipment where multiple carbon brushes share the current load). The parallel arrangement makes the carbon brush installation compact and orderly, facilitating the implementation of supporting designs such as wire connection and airflow purging. It also utilizes the uniform structure of the mounting base to ensure the consistency of the operating status of multiple carbon brushes, improving the overall current transmission stability.

[0037] Furthermore, there are three carbon brush mounting cylinders 4. The carbon brush mounting cylinders 4 are square cylinders with spring clip mounting holes.

[0038] The selection of three carbon brush mounting cylinders is based on compatibility with common multi-carbon brush applications (such as the carbon brush configuration requirements of some motors and generators). The square cylinder structure, compared to a round cylinder, provides a more stable mounting reference and limit for the carbon brush springs by utilizing the square edges and planes, resulting in a more uniform distribution of elastic pressure from the springs to the carbon brushes. Spring mounting holes are provided for assembling elastic clamping components, which reliably press the carbon brushes into the mounting cylinders using the elastic force of the springs.

[0039] Furthermore, the buckle base 1 is made of insulating material.

[0040] The buckle base is made of insulating material (such as engineering plastics, insulating ceramics, etc.), which can effectively block current from being conducted through the base, and avoid the risk of abnormal potential and leakage of other metal parts of the equipment due to the conductivity of the base.

[0041] Furthermore, the carbon brush mounting base 3 is provided with a wire mounting hole, which is used to connect to the wire of the carbon brush 6 by bolts.

[0042] The carbon brush mounting base is equipped with wire mounting holes, providing standardized and detachable connection points for the carbon brush wires.

[0043] Furthermore, the carbon brush mounting cylinder 4 is connected to the air blowing pipe 7.

[0044] The carbon brush mounting cylinder is connected to the air blowing pipe, forming an airflow channel. During carbon brush operation, compressed air or other airflow can be introduced through the air blowing pipe to purge the inside of the carbon brush mounting cylinder and the surface of the carbon brush, promptly removing carbon dust generated by carbon brush wear and dust and other impurities from the outside. If these impurities accumulate, they may affect the contact stability between the carbon brush and the contact parts, increase contact resistance, and even cause sparking. Airflow purging effectively optimizes the carbon brush working environment, extends carbon brush life, and improves equipment operational reliability.

[0045] Furthermore, the top of the positioning post 2 is provided with a rotating cap 8.

[0046] A rotating cap is provided on top of the positioning pin, offering operators a convenient point for applying force. When assembling or adjusting the threaded connection between the positioning pin and the snap-fit ​​base, the positioning pin can be easily rotated using the rotating cap, eliminating the need for additional tools (or simplifying tool use), thus improving installation and adjustment efficiency.

[0047] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A replaceable carbon brush holder, characterized in that: Includes a snap-fit ​​base (1), which is detachably connected to a positioning pin (2). The positioning pin (2) is used to attach a carbon brush mounting base (3). The carbon brush mounting base (3) is provided with a carbon brush mounting sleeve (4). The positioning pin (2) is provided with a pressure plate (5). The pressure plate (5) cooperates with the snap-fit ​​base (1) to fix the carbon brush mounting base (3).

2. The replaceable carbon brush holder according to claim 1, characterized in that: The buckle base (1) includes a first clamp (101) and a second clamp (102), which are connected by a locking bolt (103).

3. A replaceable carbon brush holder according to claim 2, characterized in that: The second clamp (102) is connected to the internal threaded cylinder (104), and the internal threaded cylinder (104) is threadedly engaged with the positioning pin (2).

4. A replaceable carbon brush holder according to claim 3, characterized in that: The carbon brush mounting base (3) is provided with a sleeve, which is used to fit onto the positioning pin (2). The internal threaded cylinder (104) cooperates with the pressure plate (5) to clamp the carbon brush mounting base (3).

5. A replaceable carbon brush holder according to claim 1, characterized in that: Multiple carbon brush mounting cylinders (4) are provided on the carbon brush mounting base (3), and the multiple carbon brush mounting cylinders (4) are arranged in parallel.

6. A replaceable carbon brush holder according to claim 5, characterized in that: There are three carbon brush mounting cylinders (4). The carbon brush mounting cylinder (4) is a square cylinder with spring clip mounting holes.

7. A replaceable carbon brush holder according to claim 1, characterized in that: The buckle base (1) is made of insulating material.

8. A replaceable carbon brush holder according to claim 1, characterized in that: The carbon brush mounting base (3) is provided with a wire mounting hole, which is used to connect the wire of the carbon brush (6) by bolt.

9. A replaceable carbon brush holder according to claim 1, characterized in that: The carbon brush mounting cylinder (4) is connected to the air blowing pipe (7).

10. A replaceable carbon brush holder according to claim 1, characterized in that: The top of the positioning post (2) is equipped with a rotating cap (8).

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