Impact-resistant brush carrier

Abstract

The utility model relates to the technical field of motor assemblies, and discloses an impact-resistant brush carrier which comprises a central steel plate, end face steel plates are fixedly welded to the outer side walls of the front end and the rear end of the central steel plate respectively, and the central steel plate and the two end face steel plates are concentrically arranged and are made of stainless steel materials. An embedding groove is formed between the front side wall and the rear side wall of the four corners of the center steel plate, connecting columns are fixedly connected into the embedding groove, the front ends of the four connecting columns are fixedly connected with a front end face steel plate, and the rear ends of the four connecting columns are fixedly connected with a rear end face steel plate. The integral brush carrier adopts a three-layer sandwich type structural design and is formed by compounding three layers of steel plate structures, the end face steel plates are welded to the front end and the rear end of the center steel plate respectively, the connecting columns are arranged to be connected and reinforced with the reinforcing columns, the reinforcing effect of the integral brush carrier structure is achieved, and different from a buffering structure, the service life of the brush carrier is prolonged. The whole brush carrier can still have a good impact-resistant effect when the brush carrier is used for large impact.

Description

Technical Field

[0001] The utility model relates to the technical field of motor components, in particular to an impact-resistant brush holder. Background Art

[0002] An electric motor, commonly known as a motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It is usually composed of multiple components, including a brush holder. The brush holder is a device for installing brushes to ensure that the brushes are accurately positioned on the commutator, thereby ensuring that the brushes are in full and close contact with the commutator, keeping the contact voltage drop constant, and ensuring that the brushes do not jump and cause sparks, resulting in commutation failures.

[0003] The utility model with prior art publication number CN212751987U relates to a novel brush holder assembly, including a brush holder base. A buffer is provided between the brush holder brush and the brush holder base to relieve the pulling force on the brush holder brush, so that the brush holder brush is protected when working; and a protective pad is provided on the brush holder base to improve the impact resistance of the brush holder.

[0004] However, the above device still has the following problems when in use: it mainly relies on the buffer component for buffering and shock reduction, thereby achieving impact resistance. However, since its buffer pad and buffer component are both arranged at the brush holder, and the brush holder itself is a small component in the motor, the deformation of its buffer pad and buffer component is limited, that is, the buffer stroke is small, and it cannot achieve good impact resistance when facing a larger impact. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides an impact-resistant brush holder, which solves the problems raised by the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impact-resistant brush holder, comprising a central steel plate, wherein an end steel plate is fixedly welded to the outer side walls at the front and rear ends of the central steel plate, the central steel plate and the two end steel plates are concentrically arranged and are both made of stainless steel, an interlocking groove is provided between the front and rear side walls at the four corners of the central steel plate, a connecting column is fixedly connected in the interlocking groove, the front ends of the four connecting columns are fixedly connected to the front end steel plate, the rear ends of the four connecting columns are fixedly connected to the rear end steel plate, a reinforcing column is fixedly connected between the side walls on the opposite sides of the four corners of the two end steel plates, and the four reinforcing columns are located on the outer side of the central steel plate, the overall brush holder adopts a three-layer sandwich structure design, which is composed of a three-layer steel plate structure, wherein an end steel plate is welded to the front and rear ends of the central steel plate, and a plurality of connecting columns and reinforcing columns are provided for connection and reinforcement, which plays a role in reinforcing the overall brush holder structure. Different from the buffer structure, the overall brush holder can still play a good impact-resistant effect when facing a larger impact.

[0009] As a further solution of the utility model: a first through hole is opened between the center positions of the front and rear side walls of the central steel plate, and the first through hole is located on the inner side of the four engaging grooves. A second through hole is opened between the center positions of the front and rear side walls of the end face steel plate corresponding to the first through hole. The center position of the overall impact-resistant brush holder is arranged in a connected state, which is conducive to the arrangement of the brushes.

[0010] As a further solution of the utility model: the two end face steel plates are arranged in a front-to-back symmetrical shape, and a group of grooves are respectively opened on the outer side walls of the two end face steel plates away from one end. The four grooves are located in a rectangular array on the outer side of the second through hole on the corresponding side, and the grooves play a role in reducing the weight of the overall impact-resistant brush holder.

[0011] As a further solution of the utility model: a first matching groove is respectively opened in the middle of the outer side walls at both ends of the end face steel plate, a group of second matching grooves is respectively opened in the middle of the outer side walls at the upper and lower ends of the end face steel plate, a group of second matching grooves consists of three, and two groups of matching grooves are arranged on the end face steel plates at the front and rear ends of the overall brush holder, that is, a group of matching grooves is respectively opened at the upper and lower ends of the end face steel plate, and at the same time, a group of matching grooves is also opened at both ends of the end face steel plate, which can cooperate with the internal blocks of the motor housing to fix the overall brush holder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the overall brush holder adopts a three-layer sandwich structure design, which is composed of a three-layer steel plate structure. An end steel plate is welded at the front and rear ends of the central steel plate, and a plurality of connecting columns and reinforcing columns are provided for connection and reinforcement, which plays a role in reinforcing the overall brush holder structure. Different from the buffer structure, the overall brush holder can still play a good impact resistance effect when facing a larger impact.

[0014] 2. In the utility model, two groups of matching grooves are arranged at the end steel plates at the front and rear ends of the integral brush holder, that is, a group of matching grooves are respectively opened at the upper and lower ends of the end steel plates, and at the same time, a group of matching grooves are also opened at both ends of the end steel plates, which can cooperate with the internal blocks of the motor housing to fix the integral brush holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall stereogram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the central steel plate of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the end steel plate and the connection reinforcement mechanism of the utility model.

[0018] In the figure: 1. center steel plate; 2. fitting groove; 3. end steel plate; 4. first matching groove; 5. second matching groove; 6. groove; 7. first through hole; 8. second through hole; 9. connecting column; 10. reinforcement column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1 to 3In the embodiment of the utility model, the impact-resistant brush holder comprises a central steel plate 1, and an end steel plate 3 is fixedly welded to the outer side walls at the front and rear ends of the central steel plate 1. The central steel plate 1 and the two end steel plates 3 are concentrically arranged and are made of stainless steel. An engaging groove 2 is opened between the front and rear side walls at the four corners of the central steel plate 1, and a connecting column 9 is fixedly connected in the engaging groove 2. The front ends of the four connecting columns 9 are fixedly connected to the front end steel plate 3, and the rear ends of the four connecting columns 9 are fixedly connected to the rear end steel plate 3. A reinforcing column 10 is fixedly connected between the side walls facing each other at the four corners of the two end steel plates 3, and the four reinforcing columns 10 are located on the outside of the central steel plate 1. The overall brush holder adopts a three-layer sandwich structure design, which is composed of a three-layer steel plate structure. An end steel plate 3 is welded to the front and rear ends of the central steel plate 1, and a plurality of connecting columns 9 are provided to connect and reinforce with the reinforcing columns 10, which plays a reinforcing role in the overall brush holder structure. Different from the buffer structure, the overall brush holder can still play a good impact-resistant effect when facing a larger impact.

[0021] A first through hole 7 is opened between the center positions of the front and rear side walls of the center steel plate 1, and the first through hole 7 is located on the inner sides of the four engaging grooves 2. A second through hole 8 is opened between the center positions of the front and rear side walls of the end face steel plate 3 corresponding to the first through hole 7. The center position of the overall impact-resistant brush holder is connected, which is convenient for arranging the brushes.

[0022] The two end steel plates 3 are arranged symmetrically front to back, and a group of grooves 6 are respectively opened on the outer side walls of the two end steel plates 3 away from one end. There are four grooves 6 and they are arranged in a rectangular array on the outer side of the second through hole 8 on the corresponding side. The grooves 6 play a role in reducing the weight of the overall impact-resistant brush holder.

[0023] A first matching groove 4 is respectively opened in the middle of the outer wall at both ends of the end steel plate 3, and a group of second matching grooves 5 are respectively opened in the middle of the outer wall at the upper and lower ends of the end steel plate 3. A group of second matching grooves 5 consists of three. Two groups of matching grooves are arranged on the end steel plates 3 at the front and rear ends of the overall brush holder, that is, a group of matching grooves are respectively opened at the upper and lower ends of the end steel plate 3, and at the same time, a group of matching grooves are also opened at both ends of the end steel plate 3, which can cooperate with the internal blocks of the motor housing to fix the overall brush holder.

[0024] The working principle of the utility model is as follows: the overall brush holder adopts a three-layer sandwich structure design, which is composed of a three-layer steel plate structure, wherein an end steel plate 3 is welded to each of the front and rear ends of the center steel plate 1, and a plurality of connecting columns 9 and reinforcing columns 10 are provided for connection and reinforcement, which plays a reinforcing role in the overall brush holder structure. Different from the buffer structure, the overall brush holder can still play a good impact resistance effect when facing a larger impact, and the center position of the overall impact-resistant brush holder is connected, which is conducive to the arrangement of brushes. In addition, two groups of matching grooves are provided at the end steel plates 3 at the front and rear ends of the overall brush holder, that is, a group of matching grooves are respectively opened at the upper and lower ends of the end steel plate 3, and at the same time, a group of matching grooves are also opened at each of the two ends of the end steel plate 3, which can cooperate with the internal block of the motor housing to fix the overall brush holder.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impact-resistant brush holder, comprising a central steel plate (1); Features: An end steel plate (3) is fixedly welded to the outer side walls at both ends of the central steel plate (1); the central steel plate (1) and the two end steel plates (3) are arranged concentrically and are made of stainless steel; The central steel plate (1) is provided with an embedding groove (2) between the front and rear side walls at the four corners, and a connecting column (9) is fixedly connected in the embedding groove (2); A reinforcement column (10) is fixedly connected between the side walls facing each other at the four corners of the two end surface steel plates (3), and the four reinforcement columns (10) are located outside the central steel plate (1).

2. The impact-resistant brush holder according to claim 1, characterized in that: The front ends of the four connecting columns (9) are fixedly connected to the front end face steel plate (3), and the rear ends of the four connecting columns (9) are fixedly connected to the rear end face steel plate (3).

3. The impact-resistant brush holder according to claim 1, characterized in that: A first through hole (7) is provided between the center positions of the front and rear side walls of the center steel plate (1), and the first through hole (7) is located inside the four engaging grooves (2).

4. The impact-resistant brush holder according to claim 1, characterized in that: A second through hole (8) is provided between the center positions of the front and rear side walls of the end surface steel plate (3) corresponding to the first through hole (7).

5. The impact-resistant brush holder according to claim 1, characterized in that: The two end surface steel plates (3) are arranged in a front-to-back symmetrical shape, and a group of grooves (6) are respectively provided on the outer side walls of the two end surface steel plates (3) away from one end.

6. The impact-resistant brush holder according to claim 5, characterized in that: The grooves (6) are four in number and are arranged in a rectangular array and are located outside the second through hole (8) on the corresponding side.

7. The impact-resistant brush holder according to claim 1, characterized in that: A first matching groove (4) is respectively provided in the middle of the outer side walls at both ends of the end face steel plate (3), and a group of second matching grooves (5) is respectively provided in the middle of the outer side walls at the upper and lower ends of the end face steel plate (3), wherein a group of the second matching grooves (5) consists of three.

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