Carbon brush plate assembly of high-voltage direct current motor

Abstract

The utility model discloses a high-voltage direct current motor carbon brush plate assembly, and particularly relates to the technical field of motor parts, the high-voltage direct current motor carbon brush plate assembly comprises a motor carbon brush holder plate assembly, the front end and the rear end of the motor carbon brush holder plate assembly are symmetrically and fixedly connected with positioning structures, and the right end of the motor carbon brush holder plate assembly is fixedly connected with a clamping structure. The left end of the motor carbon brush holder plate assembly is fixedly connected with a connecting structure. According to the carbon brush plate assembly of the high-voltage direct-current motor, the motor carbon brush holder plate assembly is fixed through the two first limiting plates and the two clamping plates, and the device can be fixed at any required installation position under the cooperation of the fixing plates and the fixing bolts, so that when the motor carbon brush holder plate assembly is installed, disassembled or replaced, the motor carbon brush holder plate assembly can be installed, disassembled or replaced conveniently and rapidly. The motor carbon brush holder plate assembly is simple and convenient, the work efficiency is not reduced because the original motor carbon brush holder plate assembly needs to be dismounted and then installed when the motor carbon brush holder plate assembly is replaced every time, the fixing position is damaged due to repeated replacement, and the fixing is not stable, and the practicability and the universality of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor components, in particular to a high-voltage direct current motor carbon brush plate assembly. Background Art

[0002] Motor carbon brushes are used on the commutator or slip ring of the motor as sliding contacts for conducting and importing current. Generally, carbon brushes are mainly made of graphite, impregnated graphite, and metal (including copper and silver) graphite. When working, the carbon brushes need to be installed on the carbon brush holder. During installation, pressure is applied to the carbon brushes in sliding contact with the surface of the commutator or collector ring through a spring, so that it can stably conduct current between the fixed body and the rotating body. For the motor, the brush holder is as important as the carbon brush. When the brush holder is not suitable, the carbon brush not only cannot give full play to its excellent characteristics, but also will have a great impact on the performance and life of the motor itself. In addition, each time the carbon brush is replaced, the original one needs to be removed and installed again, which reduces work efficiency, and the fixing part will be damaged due to multiple replacements, resulting in unstable fixation.

[0003] Chinese patent document CN208209688U discloses a motor carbon brush holder plate assembly, including a bracket for mounting on a motor stator, a carbon brush plate arranged on the bracket, and a carbon brush box arranged on the carbon brush plate, wherein the bracket includes a main baffle and support plates vertically arranged on both sides of the main baffle, the carbon brush plate is arranged on the main baffle between the two support plates, the carbon brush plate is provided with a mounting hole for the slip ring to be installed, two carbon brush boxes are arranged, and the two carbon brush boxes are symmetrically arranged on the carbon brush plates on both sides of the mounting hole, and the carbon brush boxes are parallel to the main baffle and inclined; however, there are still the following defects in the implementation process:

[0004] Although the above patent uses a bracket to ensure stable installation of the carbon brush plate and carbon brush box, and reduces the space occupied by the carbon brush box and carbon brush plate inside the product by setting the carbon brush box parallel and inclined to the main baffle, while reducing the material used for the carbon brush plate, thereby reducing the production cost of the enterprise, the device in the above document is not suitable for the installation of carbon brush plates and carbon brush boxes of various sizes. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-voltage DC motor carbon brush plate assembly, which can effectively solve the problem that the carbon brush bracket cannot be applied to motor carbon brush plate assemblies of various sizes.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-voltage DC motor carbon brush plate assembly comprises a motor carbon brush frame plate assembly, wherein the front and rear ends of the motor carbon brush frame plate assembly are symmetrically fixedly connected with positioning structures, the right end of the motor carbon brush frame plate assembly is fixedly connected with a clamping structure, the left end of the motor carbon brush frame plate assembly is fixedly connected with a connecting structure, the ends of the two positioning structures away from each other and the ends of the clamping structure and the connecting structure away from each other are fixedly connected with fixing plates, and the upper ends of the four fixing plates are slidably connected with four fixing bolts.

[0008] Preferably, the positioning structure comprises a frame plate, a front end of the frame plate is threadedly connected with a bolt that passes through the front end of the frame plate and extends to the rear end of the frame plate, and a rear end of the bolt is fixedly connected with a limiting plate.

[0009] Preferably, the clamping structure includes a support plate, a lifting structure is rotatably connected to the left end of the support plate, a sliding groove is symmetrically opened in the middle of the upper end of the support plate and extends to the lower part of the support plate, and two elastic fixing blocks are fixedly connected to the front part and the rear part of the left end of the support plate.

[0010] Preferably, the lifting structure includes a gear, the left end of the gear is fixedly connected to a control rod that passes through the left end of the gear and extends to the right part of the gear, the right end of the control rod passes through the left end of the support plate and extends to the right part of the support plate, the front part of the outer surface of the gear and the rear part of the outer surface of the gear are symmetrically meshed with racks, the ends of the two racks that are away from each other are fixedly connected to sliders, the outer surfaces of the two sliders are slidably connected to an inner cavity of a slide groove, and the left ends of the two racks are fixedly connected to clamps.

[0011] Preferably, the connecting structure includes a connecting plate, and the front right end and the rear right end of the connecting plate are both provided with a slide groove 2 that passes through the right end of the connecting plate and extends to the left part of the connecting plate, the two inner cavities of the slide groove 2 are slidingly connected to the left parts of the two limiting plates 1, and the ends of the two inner cavities of the slide groove 2 that are away from each other are symmetrically fixed with three elastic propulsion structures.

[0012] Preferably, the elastic propulsion structure comprises a shell, the inner cavity of the shell is slidably connected with a spring, and the rear end of the spring and the bottom wall of the inner cavity of the shell are fixedly connected with a sliding bolt.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model can push two limiting plates to fix the front and rear ends of the motor carbon brush frame plate assembly by rotating two bolts, and can push the upper and lower ends of the motor carbon brush frame plate assembly to be fixed by meshing two adjacent racks through gears. Such a design can adjust the fixing range of the device according to the size of the motor carbon brush frame plate assembly, and fixing plates and fixing bolts are provided around the periphery of the device. With the cooperation of the fixing plates and fixing bolts, the device can be fixed at any required installation position. In this way, it is simple and convenient to install, disassemble or replace the motor carbon brush frame plate assembly, and there is no need to remove the original one and then install it every time the motor carbon brush frame plate assembly is replaced, which reduces work efficiency, and the fixing place will be damaged due to multiple replacements, resulting in unstable fixation, thereby improving the practicability and universality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the positioning structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the clamping structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the lifting structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the connection structure of the utility model.

[0020] In the figure: 1. motor carbon brush holder plate assembly; 2. positioning structure; 21. frame plate; 22. bolt one; 23. limiting plate one; 3. clamping structure; 31. support plate; 32. lifting structure; 321. gear; 322. rack; 323. slider; 324. clamping plate; 325. control lever; 33. elastic fixing block; 34. slide slot one; 4. connecting structure; 41. connecting plate; 42. slide slot two; 43. elastic propulsion structure; 431. housing; 432. slide bolt; 433. spring; 5. fixing plate; 6. fixing bolt. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-5As shown, a high-voltage DC motor carbon brush plate assembly includes a motor carbon brush frame plate assembly 1, the front and rear ends of the motor carbon brush frame plate assembly 1 are symmetrically fixedly connected with positioning structures 2, the front and rear ends of the motor carbon brush frame plate assembly 1 can be fixed by the two positioning structures 2, the right end of the motor carbon brush frame plate assembly 1 is fixedly connected with a clamping structure 3, the upper and lower ends of the motor carbon brush frame plate assembly 1 can be fixed by the clamping structure 3, the left end of the motor carbon brush frame plate assembly 1 is fixedly connected with a connecting structure 4, the two positioning structures 2 are connected into a whole by the connecting structure 4, the ends of the two positioning structures 2 that are away from each other and the ends of the clamping structure 3 and the connecting structure 4 that are away from each other are fixedly connected with a fixing plate 5, the upper ends of the four fixing plates 5 are slidably connected with four fixing bolts 6, and the device can be fixed at a position where it needs to be fixed by the cooperation of the fixing plate 5 and the fixing bolts 6.

[0023] In order to fix the front and rear ends of the motor brush holder plate assembly 1, as Figure 2 , Figure 5 As shown, the positioning structure 2 includes a frame plate 21, a front end of the frame plate 21 is threadedly connected with a bolt 22 that passes through the front end of the frame plate 21 and extends to the rear end of the frame plate 21, and a rear end of the bolt 22 is fixedly connected with a limiting plate 23.

[0024] The connecting structure 4 includes a connecting plate 41, and a slide groove 42 is provided at the front right end and the rear right end of the connecting plate 41, which passes through the right end of the connecting plate 41 and extends to the left part of the connecting plate 41. The inner cavities of the two slide grooves 42 are slidingly connected to the left parts of the two limiting plates 23, and three elastic propulsion structures 43 are symmetrically fixedly connected at one end of the inner cavities of the two slide grooves 42 away from each other.

[0025] The elastic propulsion structure 43 includes a shell 431 , an inner cavity of the shell 431 is slidably connected with a spring 433 , and a sliding bolt 432 is fixedly connected to the rear end of the spring 433 and the bottom wall of the inner cavity of the shell 431 .

[0026] As can be seen from the above, when the front and rear ends of the motor carbon brush rack plate assembly 1 need to be fixed, first, the two limiting plates 23 are rotated toward one end away from each other through the bolt 22, and then the motor carbon brush rack plate assembly 1 is placed between the two limiting plates 23. Because the left parts of the two limiting plates 23 are respectively located in the inner cavities of the two slide grooves 42, the spring 433 is pushed to move under the elastic force of the slide bolt 432. In this way, the two limiting plates 23 are pushed under the action of the six elastic propulsion structures 43 to simply limit the front and rear ends of the motor carbon brush rack plate assembly 1, and then the two limiting plates 23 are pushed by rotating the two bolts 22 to further fix the motor carbon brush rack plate assembly 1.

[0027] In order to fix the upper and lower ends of the motor brush holder plate assembly 1, as Figure 3 , Figure 4The clamping structure 3 shown includes a support plate 31, a lifting structure 32 is rotatably connected to the left end of the support plate 31, a sliding groove 34 is symmetrically opened in the middle of the upper end of the support plate 31 and extends from the upper end of the support plate 31 to the lower part of the support plate 31, and two elastic fixing blocks 33 are fixedly connected to the front part of the left end of the support plate 31 and the rear part of the left end of the support plate 31.

[0028] The lifting structure 32 includes a gear 321, the left end of the gear 321 is fixedly connected to a control rod 325 that passes through the left end of the gear 321 and extends to the right part of the gear 321, the right end of the control rod 325 passes through the left end of the support plate 31 and extends to the right part of the support plate 31, the front of the outer surface of the gear 321 and the rear of the outer surface of the gear 321 are symmetrically meshed and connected with racks 322, the ends of the two racks 322 that are away from each other are fixedly connected to sliders 323, the outer surfaces of the two sliders 323 are slidably connected to the inner cavity of the slide groove 34, and the left ends of the two racks 322 are fixedly connected to clamps 324.

[0029] As can be seen from the above, by rotating the control rod 325, the gear 321 is driven to rotate, so that the gear 321 will mesh with the two adjacent racks 322, pushing the two racks 322 to move up and down, and because the ends of the two racks 322 that are away from each other are fixedly connected with the slider 323, and the two sliders 323 are in the inner cavities of the two slide grooves 34, the trajectory of the lifting and lowering movement of the two racks 322 is limited, avoiding the two racks 322 from being out of the moving range when moving. When the two racks 322 move, the two clamping plates 324 are driven to move up and down, so that the upper and lower ends of the motor brush rack plate assembly 1 can be fixed. The four elastic fixing blocks 33 are elastic, so when the right end of the motor brush rack plate assembly 1 is fixed, it will expand and contract according to the size of the motor brush rack plate assembly 1.

[0030] The working principle of the utility model is as follows: when it is necessary to fix the motor carbon brush rack plate assembly 1, the positioning structure 2 is first placed between the two limiting plates 23 and the upper end of the clamping plate 324 located on the lower side. In this way, the spring 433 will be pushed to move under the elastic force of the sliding bolt 432, so that the two limiting plates 23 will be driven to simply limit the front and rear ends of the motor carbon brush rack plate assembly 1 under the pushing action of the six elastic propulsion structures 43, and then the two bolts 22 are rotated, and the two limiting plates 23 will be strengthened to fix the front and rear ends of the motor carbon brush rack plate assembly 1 under the pushing action of the two bolts 22, and then the gear 321 is driven to rotate by rotating the control rod 325. Under the rotating action of the gear 321, the two adjacent racks 322 will be meshed, pushing the two racks 322 to move. When the two racks 322 move, the two clamping plates 324 will be driven to move, thereby driving the two clamping plates 324 to fix the upper and lower ends of the motor carbon brush rack plate assembly 1.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-voltage DC motor carbon brush plate assembly, comprising a motor carbon brush holder plate assembly (1), characterized in that: The front and rear ends of the motor carbon brush rack plate assembly (1) are symmetrically fixedly connected with positioning structures (2); the right end of the motor carbon brush rack plate assembly (1) is fixedly connected with a clamping structure (3); the left end of the motor carbon brush rack plate assembly (1) is fixedly connected with a connecting structure (4); the ends of the two positioning structures (2) that are away from each other and the ends of the clamping structure (3) and the connecting structure (4) that are away from each other are fixedly connected with fixing plates (5); and the upper ends of the four fixing plates (5) are slidably connected with four fixing bolts (6).

2. A high-voltage DC motor carbon brush plate assembly according to claim 1, characterized in that: The positioning structure (2) comprises a frame plate (21), the front end of the frame plate (21) being threadedly connected to a bolt (22) penetrating the front end of the frame plate (21) and extending to the rear end of the frame plate (21), and the rear end of the bolt (22) being fixedly connected to a limiting plate (23).

3. A high-voltage DC motor carbon brush plate assembly according to claim 1, characterized in that: The clamping structure (3) comprises a support plate (31), the left end of the support plate (31) is rotatably connected to a lifting structure (32), the middle part of the upper end of the support plate (31) is symmetrically provided with a slide groove (34) penetrating the upper end of the support plate (31) and extending to the lower part of the support plate (31), and the front part of the left end of the support plate (31) and the rear part of the left end of the support plate (31) are both fixedly connected to two elastic fixing blocks (33).

4. A high-voltage DC motor carbon brush plate assembly according to claim 3, characterized in that: The lifting structure (32) comprises a gear (321), the left end of the gear (321) is fixedly connected with a control rod (325) which passes through the left end of the gear (321) and extends to the right part of the gear (321), the right end of the control rod (325) passes through the left end of the support plate (31) and extends to the right part of the support plate (31), the front part of the outer surface of the gear (321) and the rear part of the outer surface of the gear (321) are symmetrically meshed and connected with racks (322), the ends of the two racks (322) which are away from each other are fixedly connected with sliders (323), the outer surfaces of the two sliders (323) are slidably connected with the inner cavity of the slide groove (34), and the left ends of the two racks (322) are fixedly connected with clamping plates (324).

5. A high-voltage DC motor carbon brush plate assembly according to claim 2, characterized in that: The connecting structure (4) comprises a connecting plate (41), and the front right end of the connecting plate (41) and the rear right end of the connecting plate (41) are both provided with a second slide groove (42) penetrating the right end of the connecting plate (41) and extending to the left part of the connecting plate (41), the inner cavities of the two second slide grooves (42) are slidably connected to the left parts of the two first limiting plates (23), and the inner cavities of the two second slide grooves (42) are symmetrically fixedly connected with three elastic propulsion structures (43) at one end away from each other.

6. A high-voltage DC motor carbon brush plate assembly according to claim 5, characterized in that: The elastic propulsion structure (43) comprises a shell (431), the inner cavity of the shell (431) is slidably connected to a spring (433), and the rear end of the spring (433) and the bottom wall of the inner cavity of the shell (431) are fixedly connected to a sliding bolt (432).

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