CN219226849U

CN219226849U - High temperature resistant carbon brush holder assembly

Info

Publication number: CN219226849U
Application number: CN202223408415.1U
Authority: CN
Inventors: 潘鸿雷; 张忠武; 陈辉; 朱振华
Original assignee: Rui'an Ruixin Electrical Appliance Co ltd
Current assignee: Rui'an Ruixin Electrical Appliance Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-20
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a high-temperature-resistant carbon brush holder assembly, which comprises a bearing connecting plate, wherein a first limiting block and a second limiting block which are symmetrically distributed are fixedly connected to the top of the bearing connecting plate, clamping grooves are formed in the inner walls of one side of the first limiting block and the inner wall of one side of the second limiting block, the clamping connecting plates are connected in a sliding mode in the clamping grooves, the clamping connecting plates in the first limiting block and the second limiting block which are positioned on the same side are fixedly connected through a supporting connecting rod, a threaded groove is formed in the inner wall of the clamping groove on the second limiting block, and a threaded rod is connected to the inner wall of the clamping groove on the second limiting block through the threaded groove. According to the utility model, the length of the extending threaded rod is adjusted by rotating the threaded rod, so that the carbon brush moves downwards along with the telescopic connecting plate and the limiting connecting plate in the abrasion shortening process until the limiting connecting plate meets the obstruction of the threaded rod and stops moving continuously, and the carbon brush is controlled to stop being used when the carbon brush is shortened to a designated position, and the carbon brush holder is prevented from being burnt at a continuous high temperature.

Description

High temperature resistant carbon brush holder assembly

Technical Field

The utility model relates to the technical field of carbon brush holders of brush motors, in particular to a high-temperature-resistant carbon brush holder assembly.

Background

The carbon brush holder has the function of applying pressure to the carbon brush in sliding contact with the surface of the commutator or the collecting ring, so that the carbon brush can stably conduct current between the fixed body and the rotating body, no matter how good the characteristics of the carbon brush are, the carbon brush not only can not fully exert the excellent characteristics of the carbon brush, but also can bring great influence to the performance and the service life of the motor, and at present, in the prior art, the carbon brush holder is rubbed back and forth to generate heat when being used in the carbon brush motor, and the carbon brush holder can be burnt out after being used for a long time, so that the influence is caused to the service life of the motor, and therefore, a high-temperature-resistant carbon brush holder assembly is needed.

Through retrieving, chinese patent application number is CN 202122223322.0's patent discloses a novel high temperature resistant carbon brush holder assembly, including carbon brush seat, carbon brush box fixed connection is on the carbon brush seat, the shaft hole has been seted up in the middle of the carbon brush seat, the spring mounting groove has been seted up to the symmetry on the carbon brush seat, install heat dissipation spring on the spring mounting groove, symmetry fixedly connected with linking bridge on the carbon brush seat, the joint hole has been seted up to the symmetry on the carbon brush seat, just the joint hole sets up inside the linking bridge, the carbon brush box comprises bottom plate, baffle, connecting block, top stopper, bottom plate fixed connection carbon brush seat, baffle vertical fixed connection is on the bottom plate, connecting block fixed connection is at the bottom plate top, top stopper fixed connection is at the connecting block top, top stopper one end fixed connection baffle, the length of top stopper is greater than the length of bottom plate and connecting block.

The novel high temperature resistant carbon brush holder assembly in the above patent has the following disadvantages: the carbon brush in the novel high-temperature-resistant carbon brush holder assembly is easy to burn the carbon brush holder before shortening to the designated position, so that the motor cannot work or even is damaged.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a high-temperature-resistant carbon brush holder assembly.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a high temperature resistant carbon brush holder assembly, is including bearing even board, bear even board top fixedly connected with symmetric distribution's first stopper and second stopper, first stopper, second stopper one side inner wall all process has the screens groove, the inside sliding connection of screens groove has the screens even board, is located same one side screens even between the board through supporting connection rod fixed connection in first stopper, the second stopper, the inner wall processing of screens groove has the screw groove on the second stopper, the screens inslot wall is connected with the threaded rod through the screw groove on the second stopper.

Preferably: the inner wall processing of first stopper, second stopper one side has built-in groove, built-in inslot portion is provided with telescopic spring, telescopic spring one end fixedly connected with flexible link plate, flexible link plate outer wall sliding connection is in built-in inslot wall all around, flexible link plate one side outer wall rotation is connected with spacing link plate, spacing link plate joint is in the carbon brush.

Preferably: a detachable clamping rod is arranged between the telescopic connecting plate and the limiting connecting plate.

Preferably: and heat conducting balls are arranged on one sides close to the first limiting block and the second limiting block.

Preferred as the present utility model: and radiating fins are fixedly connected to one sides of the first limiting block and the second limiting block, and uniformly distributed radiating holes are formed in the inner wall of one side of each radiating fin.

As a preferred embodiment of the present utility model: the radiating fin is arc-shaped.

The utility model has the beneficial effects that:

the length that rotatory threaded rod adjusted threaded rod stretched out for the carbon brush shortens the in-process at wearing and tearing, and flexible link board, spacing link board are carried the carbon brush and are moved downwards, and the hindrance that runs into the threaded rod stops continuing the removal until spacing link board, thereby control carbon brush is shortened and is stopped the use promptly when appointed position, prevents that continuous high temperature from burning out the carbon brush holder, damages the motor even.

Drawings

FIG. 1 is a schematic view of the overall structure of a high temperature resistant carbon brush holder assembly according to the present utility model;

FIG. 2 is a schematic diagram of the first and second limiting blocks of the carbon brush holder assembly with high temperature resistance according to the present utility model;

FIG. 3 is a schematic side view of a second limiting block of a high temperature resistant carbon brush holder assembly according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a second stopper of a carbon brush holder assembly with high temperature resistance according to the present utility model.

In the figure: the heat-conducting device comprises a 1-bearing connecting plate, a 2-first limiting block, a 3-second limiting block, a 4-radiating fin, a 5-clamping groove, a 6-supporting connecting rod, a 7-heat-conducting ball, an 8-threaded rod, a 9-clamping connecting plate, a 10-radiating hole, a 11-telescopic connecting plate, a 12-limiting connecting plate, a 13-built-in groove and a 14-telescopic spring.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the patent and simplifying the description, and do not limit the device, structure, or element to which it refers to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the patent.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Example 1:

the utility model provides a high temperature resistant carbon brush holder assembly, refer to fig. 1-4 and show, including bearing link 1, bearing link 1 top fixedly connected with symmetrical distribution's first stopper 2 and second stopper 3, first stopper 2, the inside wall of second stopper 3 one side all is processed and is had screens groove 5, screens link 9 of sliding connection in screens groove 5, lie in same one side screens link 9 in first stopper 2, the second stopper 3 between through supporting link 6 fixed connection, the inside wall processing of screens groove 5 has the screw thread groove on the second stopper 3, screens groove 5 inner wall is connected with threaded rod 8 through the screw thread groove on the second stopper 3, first stopper 2, the inside wall processing of second stopper 3 one side has built-in groove 13, the inside extension spring 14 that is provided with of built-in groove 13, extension spring 14 one end fixedly connected with flexible link 11, flexible link 11 all around outer wall sliding connection in built-in groove 13 inner wall, flexible link 11 one side outer wall rotation is connected with spacing link 12, flexible link 11 and carbon brush link 12 are connected with spacing link 12 in the spacing link that can be dismantled between the carbon brush link 12;

the length that threaded rod 8 stretched out is adjusted to rotatory threaded rod 8 for the carbon brush shortens the in-process at wearing and tearing, flexible link plate 11, spacing link plate 12 are carried the carbon brush and are moved down, stop continuing to remove until spacing link plate 12 runs into the hindrance of threaded rod 8, thereby control carbon brush is stopping to use promptly when shortening to the assigned position, prevent that continuous high temperature from burning out the carbon brush holder, damage the motor even, spacing link plate 12 joint is in the carbon brush, the extrusion carbon brush that lasts under the elasticity effect of telescopic spring 14, make the carbon brush contact with the rotor all the time, support connecting rod 6 is when playing spacing effect to the carbon brush, ensure that carbon brush and air contact surface are big, thereby accelerate the radiating efficiency of carbon brush.

Referring to fig. 1-3, heat conducting balls 7 are arranged on the sides close to the first limiting block 2 and the second limiting block 3, cooling fins 4 are fixedly connected to the sides far away from the first limiting block 2 and the second limiting block 3, uniformly distributed cooling holes 10 are formed in the inner wall of one side of each cooling fin 4, and the cooling fins 4 are arc-shaped;

the heat conduction ball 7 can transfer the carbon brush faster to the carbon brush frame for heat dissipation, the arc-shaped radiating fins 4 can help the air flow, the air resistance is reduced, and the contact area between the radiating fins 4 and the air can be increased by the radiating holes 10 on the radiating fins 4, so that the heat dissipation efficiency is accelerated.

When the carbon brush is installed, the clamping rod between the telescopic connecting plate 11 and the limiting connecting plate 12 is firstly taken out, then the limiting connecting plate 12 is rotated, the carbon brush is placed between the first limiting block 2 and the second limiting block 3, the limiting connecting plate 12 is clamped into the carbon brush, the clamping rod is placed between the telescopic connecting plate 11 and the limiting connecting plate 12, a stable right-angle relationship is formed between the telescopic connecting plate 11 and the limiting connecting plate 12, the carbon brush is positioned in the supporting connecting rod 6, the rotor of the motor is tightly attached to the inside under the action of the telescopic spring 14, the threaded rod 8 is rotated to extend to a designated position, namely, the critical position of the carbon brush frame burnt by the continuous running abrasion of the motor, when the motor runs, the carbon brush and the rotor generate heat by friction, the heat on the carbon brush automatically dissipates a part, then the heat is transferred to the carbon brush frame by the heat conduction balls 7, the heat dissipation sheet 4 on the heat dissipation frame can assist in dissipating the heat, and the heat dissipation efficiency is improved.

While the utility model has been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a high temperature resistant carbon brush holder assembly, includes bears even board (1), its characterized in that, bear even board (1) top fixedly connected with symmetric distribution's first stopper (2) and second stopper (3), first stopper (2), second stopper (3) one side inner wall all process has screens groove (5), inside sliding connection of screens groove (5) has screens even board (9), is located same one side screens even between board (9) through supporting rod (6) fixed connection in first stopper (2), second stopper (3), the inner wall processing of screens groove (5) has the screw groove on second stopper (3), screens groove (5) inner wall is connected with threaded rod (8) through the screw groove on second stopper (3).

2. The high-temperature-resistant carbon brush holder assembly according to claim 1, wherein a built-in groove (13) is machined in the inner wall of one side of the first limiting block (2) and the second limiting block (3), a telescopic spring (14) is arranged in the built-in groove (13), one end of the telescopic spring (14) is fixedly connected with a telescopic connecting plate (11), the outer wall of the periphery of the telescopic connecting plate (11) is slidably connected with the inner wall of the built-in groove (13), a limiting connecting plate (12) is rotationally connected with the outer wall of one side of the telescopic connecting plate (11), and the limiting connecting plate (12) is clamped in a carbon brush.

3. A carbon brush holder assembly according to claim 2, characterized in that a detachable clamping rod is arranged between the telescopic connecting plate (11) and the limiting connecting plate (12).

4. A carbon brush holder assembly according to claim 1, characterized in that heat conducting balls (7) are arranged on the sides close to the first limiting block (2) and the second limiting block (3).

5. The high-temperature-resistant carbon brush holder assembly according to claim 1, wherein radiating fins (4) are fixedly connected to one sides of the first limiting block (2) and the second limiting block (3), and uniformly distributed radiating holes (10) are formed in the inner wall of one side of each radiating fin (4).

6. A high temperature resistant carbon brush holder assembly according to claim 5, wherein the heat sink (4) is in the form of an arcuate plate.