Carbon brush grinding and forming mechanism

Abstract

The utility model provides a carbon brush grinding and forming mechanism, which relates to the field of carbon brush grinding and comprises a machine tool and a driving part with a power output part entering a working area in the machine tool, and the power output part entering the working area is provided with a grinding body; a ring sleeve fixed in the tool area surrounds the grinding body; the ring sleeve is provided with a plurality of clamps filled with the carbon brushes, and the clamps push the carbon brushes to be in contact with the grinding body in a limited manner; according to the carbon brush grinding device, the clamp pushes the carbon brush to make contact with the grinding body, the grinding body is driven by the shaft to make friction contact with the carbon brush, then the contact face of the carbon brush and the grinding body is ground, the whole grinding process is automatically completed by the device except for feeding and discharging, the automation degree is improved, and the grinding precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of carbon brush grinding, in particular to a carbon brush grinding and forming mechanism. Background Art

[0002] Carbon brush is a kind of sliding contact structure, which is mainly used for transferring energy or signal between the fixed part and the rotating part of the generator. It is easy to wear and needs regular maintenance and replacement. Carbon brush is generally square and installed in front of the metal bracket. The surface in contact with the rotating part needs to be polished into an arc surface with the same curvature as the rotating part.

[0003] At present, the Chinese utility model patent with the authorization announcement number CN 212947059 U proposes a carbon brush arc surface grinding device for the above-mentioned grinding process, which includes a support frame, a clamp is provided on the support frame, a lifting mechanism is provided between the clamp and the support frame, a square shaft is provided on the clamp, the square shaft is fixedly connected to the support frame, a sliding seat is provided on the square shaft, the sliding seat sleeve is provided on the square shaft to slide, a grinding stone is provided at the end of the sliding seat, the carbon brush is fixed on the clamp, and the grinding stone moves back and forth against the carbon brush. Judging from the drawings in the specification of the authorized patent, the patent sets a set of standardized instruments for the grinding process, which can significantly improve the grinding accuracy, but combined with the implementation process, personnel participation is still required, and the degree of automation has room for improvement. Utility Model Content

[0004] The utility model aims to provide a carbon brush grinding and forming mechanism to solve the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A carbon brush grinding and forming mechanism comprises a machine tool and a driving part whose power output part enters a working area in the machine tool, wherein the power output part entering the working area is provided with a grinding body;

[0007] A fixed ring in the tool region surrounds the grinding body;

[0008] The ring sleeve is equipped with multiple fixtures for loading carbon brushes, and the fixtures are used to push the carbon brushes to contact the grinding body to a limited extent;

[0009] When the power output part in the driving part drives the grinding body to rotate axially, the grinding body grinds the carbon brush pushed by the clamp.

[0010] Preferably, the fixture comprises a base fixed at the ring sleeve, the base is provided with a carbon brush frame for housing the carbon brush, and the base is further provided with a pushing structure adjacent to the carbon brush frame, the pushing structure pushes the carbon brush to contact the grinding body.

[0011] Preferably, the pushing structure includes a coil spring shaft adjacent to the carbon brush frame, and a coil spring with one end inserted into the coil spring shaft and the other end contacting the end of the carbon brush.

[0012] Preferably, a slot is provided in the coil spring shaft, and the central end of the coil spring is inserted into the slot.

[0013] Preferably, the grinding body includes a first grinding part and a second grinding part which are integrated by screws and are trapped in the power output part of the driving part.

[0014] Preferably, the power output portion is a shaft connected to the driving portion.

[0015] Preferably, it also includes a fixing portion arranged in the working area for fixing the ring sleeve.

[0016] Preferably, the working area is a slot arranged in the machine tool, and the slot is an open slot, and a flap is provided at the slot opening of the open slot as a blocking portion.

[0017] The beneficial effects of the utility model are:

[0018] In the utility model, the clamp pushes the carbon brush to contact the grinding body, and the grinding body driven by the shaft will frictionally contact the carbon brush, thereby grinding the contact surface of the carbon brush and the grinding body. The entire grinding process, except for loading and unloading, is completed independently by the equipment, the degree of automation is improved, and the grinding accuracy is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a carbon brush grinding and forming mechanism;

[0020] Figure 2 for Figure 1 A three-dimensional diagram of the carbon brush grinding and forming mechanism shown;

[0021] Figure 3 is a schematic diagram of the structure of the grinding assembly;

[0022] Figure 4 It is a separate diagram of the grinding body and the carbon brush clamp;

[0023] Figure 5 It is a structural schematic diagram of the fixing part in the carbon brush clamp body;

[0024] Figure 6 It is a schematic diagram of the structure of the fixture in the carbon brush clamp body;

[0025] Figure numerals: 1. machine tool; 2. flap; 3. groove; 4. driving part; 5. fixture; 51. base; 52. carbon brush frame; 53. coil spring shaft; 54. coil spring; 6. shaft; 7. fixing part; 8. hydraulic support rod; 9. grinding body; 91. first grinding part; 92. second grinding part; 10. ring sleeve; 11. limiting groove; 12. shaft sleeve. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0027] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0028] Example 1

[0029] In this embodiment, a carbon brush grinding and forming mechanism is proposed. Figure 1-Figure 6 The carbon brush grinding and forming mechanism includes a machine tool 1, such as Figure 2 As shown, the machine tool 1 has a slot 3 and a flap 2 corresponding to the slot 3 .

[0030] Further explanation, the slot 3 is an open slot, the space inside the slot is the working area of ​​the machine tool 1, and the flap 2 is rotatably arranged on the upper edge of the machine tool 1. Figure 2 The hydraulic struts 8 shown are supported, either covering the slot opening of the open slot or away from the slot opening of the slot, revealing the working area in the slot.

[0031] See also Figure 1 and Figure 2 A driving unit 4 is provided in the working area. The driving unit 4 is a motor in this embodiment. The motor is provided with a shaft 6, and the shaft 6 enters the working area.

[0032] Further explanation, the shaft 6 is equipped with a grinding body 9, and there is a fixing part 7 fixed to the bottom of the groove 3 in the working area, the shaft 6 passes through the fixing part 7, and the grinding body 9 is close to the fixing part 7. The fixing part 7 is equipped with a ring sleeve 10, and the axis of the ring sleeve 10 coincides with the axis of the shaft 6.

[0033] More importantly, the ring sleeve 10 is equipped with a fixture 5 for loading the carbon brush. The number of the fixtures 5 is four in this embodiment. Figure 3 and Figure 4 For reference, the fixture 5 pushes the carbon brush to contact the grinding body 9, so that the grinding body 9 driven by the shaft 6 will frictionally contact with the carbon brush, thereby grinding the contact surface of the carbon brush and the grinding body 9.

[0034] To further explain, the above-mentioned clamp 5 includes a base 51 fixed at the ring sleeve 10, and the base 51 is equipped with a carbon brush frame 52 for framing the carbon brush. The base 51 is also equipped with a coil spring shaft 53 adjacent to the carbon brush frame 52, and a coil spring 54 with one end inserted into the coil spring shaft 53 and the other end contacting the end of the carbon brush. In this way, it can be determined that the coil spring 54 can push the carbon brush to contact the grinding body 9 within its own elastic force range, thereby grinding the surface where the carbon brush contacts the grinding body 9.

[0035] In this embodiment, the grinding body 9 is a split structure. Specifically, the grinding body 9 includes a first grinding portion 91 and a second grinding portion 92, wherein the first grinding portion 91 and the second grinding portion 92 are engaged at the shaft 6. In this way, the first grinding portion 91 and the second grinding portion 92 are fixed to the shaft 6 by screws inserted into the first grinding portion 91 and the second grinding portion 92.

[0036] To further illustrate, the advantage of the split grinding body 9 is that it is easy to disassemble and assemble. In addition, the curvature of the arc surface of the carbon brush can be adjusted in combination with the change of its own diameter.

[0037] In this embodiment, the ring sleeve 10 is combined with the fixing portion 7 by screws. Figure 5 As shown, it is equipped with a limiting groove 11 for the frame grinding body 9 and a sleeve 12 for the trap shaft 6. Specifically, when the grinding body 9 enters the limiting groove 11, it indicates that the carbon brush is located within the rotation range of the grinding body 9, and the sleeve 12 is responsible for supporting the shaft 6.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The above shows and describes the basic principle, main features and 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 preferred examples of the utility model and are not used to limit 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 of the utility model is defined by the attached claims and their equivalents.

Claims

1. A carbon brush grinding and forming mechanism, comprising a machine tool, and a driving part whose power output part enters a working area in the machine tool, characterized in that: The power output part entering the working area is equipped with grinding bodies; A fixed ring in the tool region surrounds the grinding body; The ring sleeve is equipped with a plurality of fixtures for loading carbon brushes, and the fixtures are used to push the carbon brushes to contact the grinding body to a limited extent, so that the grinding body can grind the carbon brushes pushed by the fixtures when the power output part in the driving part drives the grinding body to rotate axially.

2. A carbon brush grinding and forming mechanism according to claim 1, characterized in that: The fixture comprises a base fixed at the ring sleeve, the base is provided with a carbon brush frame for housing the carbon brush, and the base is also provided with a pushing structure adjacent to the carbon brush frame, the pushing structure pushes the carbon brush to contact the grinding body.

3. A carbon brush grinding and forming mechanism according to claim 2, characterized in that: The pushing structure comprises a coil spring shaft adjacent to the carbon brush frame and a coil spring with one end inserted into the coil spring shaft and the other end contacting the end of the carbon brush.

4. A carbon brush grinding and forming mechanism according to claim 3, characterized in that: A clamping groove is arranged in the coil spring shaft, and the center end of the coil spring is clamped into the clamping groove.

5. A carbon brush grinding and forming mechanism according to claim 1, characterized in that: The grinding body comprises a first grinding part and a second grinding part which are integrated and trapped in the power output part of the driving part through screws.

6. A carbon brush grinding and forming mechanism according to claim 5, characterized in that: The power output part is a shaft connected to the driving part.

7. A carbon brush grinding and forming mechanism according to claim 1, characterized in that: The invention also comprises a fixing part which is arranged in the working area and is used for fixing the ring sleeve.

8. The carbon brush grinding and forming mechanism according to claim 1, characterized in that: The working area is a slot arranged in the machine tool, and the slot is an open slot, and a flap is provided at the slot opening of the open slot as a blocking part.

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