A generator carbon brush grinding tool

Abstract

The utility model relates to carbon brush grinding technical field especially relates to a generator carbon brush grinding tool. The generator carbon brush grinding tool includes the installation base, is fixedly installed with L type frame on the installation base, is installed with the rotatory connection installation shaft on the vertical board section of L type frame, and the polishing roller for polishing carbon brush is set up on the installation shaft, and the clamping part for clamping carbon brush is installed on the horizontal board of L type frame. The generator carbon brush grinding tool provided by the utility model is driven under the elastic force of spring, and the generator carbon brush bottom in the carbon brush insertion frame can be firmly abutted with the polishing roller, avoids the hidden danger that the polishing effect is poor because the carbon brush bottom cannot effectively contact with the polishing roller, and the carbon powder polished down on both sides of the carbon brush insertion frame can be recycled through the dust cover by opening the negative pressure fan, on one hand, the carbon powder can be secondarily utilized to avoid resource waste, on the other hand, the surrounding environment is avoided to be polluted by the carbon powder.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush grinding technology, and in particular to a generator carbon brush grinding tool. Background Technology

[0002] Currently, power plant generators are all synchronous generators. These generators supply power to the load. The quality of contact between the generator brushes and slip rings during operation causes uneven current flow to each brush, resulting in some brushes having zero current while others have very high current. The more zero-current brushes there are, the higher the current of the other brushes will be, leading to more severe overload. To address this issue, patent document CN211277837U describes a method that controls the grinding precision of carbon brushes using a sliding carbon brush holder, which is convenient and reliable. Rotating the grinding handle drives a rotating shaft, which in turn drives a grinding drum. Sandpaper is placed on the side wall of the grinding drum, and the grinding drum rotates the sandpaper, causing it to contact and rub against the carbon brush until the carbon brush and slip ring reach the correct arc, ensuring operational stability. However, because the carbon brushes are fixed using a carbon brush holder, after a certain amount of grinding, it is impossible to maintain a tight fit between the grinding surface of the carbon brush and the sandpaper on the grinding drum. Therefore, the height of the carbon brush holder needs to be adjusted after a period of grinding, which is time-consuming and labor-intensive.

[0003] Therefore, it is necessary to provide a new generator carbon brush grinding tool to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a generator carbon brush grinding tool.

[0005] The generator carbon brush grinding tool provided by this utility model includes a mounting base, an L-shaped frame fixedly mounted on the mounting base, and a rotatingly connected mounting shaft mounted on the vertical plate section of the L-shaped frame. A grinding roller for grinding carbon brushes is sleeved on the mounting shaft.

[0006] The horizontal plate of the L-shaped frame is equipped with a clamping component for holding carbon brushes, and the clamping component includes a carbon brush insertion frame. Two symmetrically distributed sliding rods are fixedly installed on the carbon brush insertion frame, and the two sliding rods pass through the through holes opened in the horizontal plate and are slidably connected to the through holes. Each sliding rod is fitted with a spring, and a locking screw for fastening the carbon brush is inserted into the threaded through hole opened in the insertion frame.

[0007] Preferably, one end of the spring is fixedly connected to the inner top wall of the horizontal plate of the L-shaped frame, and the other end of the spring is fixedly connected to the upper frame edge of the carbon brush insertion frame.

[0008] Preferably, a rod cap is fixedly installed on the top of the sliding rod.

[0009] Preferably, a dust collection assembly is also installed on the horizontal plate of the L-shaped frame, and the dust collection assembly includes a mounting housing, which is fixedly installed on the horizontal plate of the L-shaped frame. The mounting housing contains a negative pressure fan and a dust collection box connected to the dust suction port of the negative pressure fan. A filter screen is installed inside the dust suction port. The dust collection box is connected to two guide pipes through a three-way pipe. A dust suction hood is fixedly installed at the connection end of each of the two guide pipes, and the two dust suction hoods are respectively located on both sides of the brush insertion frame.

[0010] Preferably, the L-shaped frame is equipped with a servo motor for driving the rotation of the mounting shaft, and the mounting shaft is provided with a side protrusion.

[0011] Preferably, a lead screw is fixedly mounted on the end of the mounting shaft, and a threaded nut is fitted on the lead screw.

[0012] Compared with related technologies, the generator carbon brush grinding tool provided by this utility model has the following beneficial effects:

[0013] This invention utilizes the elastic force of a spring to ensure that the bottom of the generator carbon brush in the carbon brush insertion frame is firmly pressed against the grinding roller, thus avoiding the potential problem of poor grinding effect due to the bottom of the carbon brush not being able to effectively contact the grinding roller. Furthermore, by turning on the negative pressure fan, the carbon powder ground off both sides of the carbon brush insertion frame can be recycled through the dust collection hood. This not only allows for the reuse of carbon powder and avoids resource waste, but also prevents carbon powder from polluting the surrounding environment. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the generator carbon brush grinding tool provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the structure for mounting the shaft on the L-shaped frame.

[0016] Figure 3 for Figure 1 A schematic diagram of the clamping component is shown.

[0017] Figure 4 for Figure 1 The diagram shows the structure of the dust collection assembly.

[0018] The following are the labels in the diagram: 1. Mounting base; 2. L-shaped frame; 3. Mounting shaft; 31. Side protrusion; 32. Servo motor; 33. Lead screw; 34. Nut; 4. Grinding roller; 5. Clamping component; 51. Carbon brush insertion frame; 52. Sliding rod; 521. Rod cap; 53. Spring; 54. Locking screw; 6. Dust collection assembly; 61. Mounting housing; 62. Material guide tube; 63. Dust suction hood. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a generator carbon brush grinding tool, which includes a mounting base 1, a clamping component 5, and a dust collection assembly 6.

[0022] In the embodiments of this utility model, please refer to Figure 1 and Figure 2 An L-shaped frame 2 is fixedly mounted on the mounting base 1, and a rotating mounting shaft 3 is mounted on the vertical plate section of the L-shaped frame 2. A grinding roller 4 for grinding carbon brushes is sleeved on the mounting shaft 3. Specifically, a servo motor 32 for driving the mounting shaft 3 to rotate is mounted on the L-shaped frame 2, and a side protrusion 31 is provided on the mounting shaft 3. A lead screw 33 is fixedly mounted on the end of the mounting shaft 3, and a threaded nut 34 is sleeved on the lead screw 33.

[0023] It should be noted that: when installing the grinding roller 4, after unscrewing the nut 34, the grinding roller 4 is inserted into the mounting shaft 3, and then the nut 34 is put on the lead screw 33 and tightened. When replacing the grinding roller 4, after unscrewing the nut 34, the grinding roller 4 is removed and the new grinding roller 4 is installed on the mounting shaft 3, and then the nut 34 is tightened on the lead screw 33. The overall operation is simple and convenient.

[0024] In this embodiment, a side protrusion 31 is provided on the mounting shaft 3, so that the grinding roller 4 can be driven to rotate when the mounting shaft 3 is installed.

[0025] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 A clamping component 5 for holding carbon brushes is installed on the horizontal plate of the L-shaped frame 2. The clamping component 5 includes a carbon brush insertion frame 51. Two symmetrically distributed sliding rods 52 are fixedly installed on the carbon brush insertion frame 51. The two sliding rods 52 pass through the through holes opened in the horizontal plate and are slidably connected to the through holes. A rod cap 521 is fixedly installed on the top of the sliding rod 52. A spring 53 is sleeved on each sliding rod 52. One end of the spring 53 is fixedly connected to the inner top wall of the horizontal plate of the L-shaped frame 2, and the other end of the spring 53 is fixedly connected to the upper frame edge of the carbon brush insertion frame 51. A locking screw 54 for fastening the carbon brush is inserted into the threaded through hole opened in the insertion frame 51.

[0026] It should be noted that when installing the carbon brush, pressing the carbon brush insertion frame 51 causes the sliding rod 52 to slide upward and compress the spring 53. At this time, the distance between the carbon brush insertion frame 51 and the highest point of the grinding roller 4 increases. Then, the carbon brush is inserted from the bottom of the carbon brush insertion frame 51 into the carbon brush insertion frame 51. Then, the locking screw 54 is tightened to drive the locking screw 54 to fix the carbon brush in the carbon brush insertion frame 51 (keeping the bottom carbon body of the carbon brush extending out of the lower part of the carbon brush insertion frame 51). Then, the carbon brush insertion frame 51 is released, so that under the elastic force of the spring 53, the bottom of the generator carbon brush in the carbon brush insertion frame 51 can firmly abut against the grinding roller 4, avoiding the hidden danger of poor grinding effect due to the bottom of the carbon brush not being able to effectively contact the grinding roller 4.

[0027] In the embodiments of this utility model, please refer to Figure 1 and Figure 4 A dust collection assembly 6 is also installed on the horizontal plate of the L-shaped frame 2. The dust collection assembly 6 includes a mounting housing 61, which is fixedly installed on the horizontal plate of the L-shaped frame 2. The mounting housing 61 contains a negative pressure fan and a dust collection box connected to the dust suction port of the negative pressure fan. A filter screen is installed in the dust suction port. The dust collection box is connected to two guide pipes 62 through a three-way pipe. A dust suction hood 63 is fixedly installed at the connection end of the two guide pipes 62, and the two dust suction hoods 63 are respectively located on both sides of the brush insertion frame 51.

[0028] It should be noted that turning on the negative pressure fan allows the toner powder ground off both sides of the carbon brush insertion frame 51 to be recycled through the dust collection hood 63. This not only allows the toner powder to be reused to avoid resource waste, but also prevents the toner powder from polluting the surrounding environment.

[0029] The working principle of the generator carbon brush grinding tool provided by this utility model is as follows:

[0030] When installing the grinding roller 4, unscrew the nut 34 and insert the grinding roller 4 onto the mounting shaft 3. Then, put the nut 34 on the lead screw 33 and tighten it. When replacing the grinding roller 4, unscrew the nut 34, remove the grinding roller 4, install the new grinding roller 4 onto the mounting shaft 3, and then tighten the nut 34 on the lead screw 33. The overall operation is simple and convenient.

[0031] When installing the carbon brush, pressing the carbon brush insertion frame 51 causes the sliding rod 52 to slide upward and compress the spring 53. At this time, the distance between the carbon brush insertion frame 51 and the highest point of the grinding roller 4 increases. Then, the carbon brush is inserted from the bottom of the carbon brush insertion frame 51 into the carbon brush insertion frame 51. Then, tighten the locking screw 54 to fix the carbon brush in the carbon brush insertion frame 51 (keeping the bottom carbon body of the carbon brush extending out of the lower part of the carbon brush insertion frame 51). Then, loosen the carbon brush insertion frame 51. Under the elastic force of the spring 53, the bottom of the generator carbon brush in the carbon brush insertion frame 51 can be firmly pressed against the grinding roller 4, avoiding the hidden danger of poor grinding effect due to the bottom of the carbon brush not being able to effectively contact the grinding roller 4. Turning on the negative pressure fan allows the carbon powder ground off both sides of the carbon brush insertion frame 51 to be recycled through the dust collection hood 63. On the one hand, the carbon powder can be reused to avoid resource waste, and on the other hand, carbon powder can be prevented from polluting the surrounding environment.

[0032] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A generator carbon brush grinding tool, characterized in that, Includes a mounting base (1), on which an L-shaped frame (2) is fixedly mounted, and a rotatingly connected mounting shaft (3) is mounted on the vertical plate section of the L-shaped frame (2), and a grinding roller (4) for grinding carbon brushes is sleeved on the mounting shaft (3). The L-shaped frame (2) is equipped with a clamping component (5) for clamping carbon brushes on its horizontal plate. The clamping component (5) includes a carbon brush insertion frame (51). Two symmetrically distributed sliding rods (52) are fixedly installed on the carbon brush insertion frame (51). The two sliding rods (52) pass through the through holes opened in the horizontal plate and are slidably connected to the through holes. A spring (53) is sleeved on each sliding rod (52). A locking screw (54) for fastening carbon brushes is inserted into the threaded through hole opened in the insertion frame (51).

2. The generator carbon brush grinding tool according to claim 1, characterized in that, One end of the spring (53) is fixedly connected to the inner top wall of the horizontal plate of the L-shaped frame (2), and the other end of the spring (53) is fixedly connected to the upper frame edge of the carbon brush insertion frame (51).

3. The generator carbon brush grinding tool according to claim 1, characterized in that, A rod cap (521) is fixedly installed on the top of the sliding rod (52).

4. The generator carbon brush grinding tool according to claim 1, characterized in that, A dust collection assembly (6) is also installed on the horizontal plate of the L-shaped frame (2), and the dust collection assembly (6) includes a mounting housing (61). The mounting housing (61) is fixedly installed on the horizontal plate of the L-shaped frame (2), and the mounting housing (61) contains a negative pressure fan and a dust collection box connected to the dust suction port of the negative pressure fan. A filter screen is installed in the dust suction port. The dust collection box is connected to two guide pipes (62) through a three-way pipe. A dust suction hood (63) is fixedly installed at the connection end of the two guide pipes (62), and the two dust suction hoods (63) are respectively located on both sides of the brush insertion frame (51).

5. The generator carbon brush grinding tool according to claim 1, characterized in that, The L-shaped frame (2) is equipped with a servo motor (32) for driving the mounting shaft (3) to rotate, and the mounting shaft (3) is provided with a side protrusion (31).

6. The generator carbon brush grinding tool according to claim 5, characterized in that, The end of the mounting shaft (3) is fixedly mounted with a lead screw (33) arranged coaxially, and a nut (34) with threaded connection is sleeved on the lead screw (33).

Images