Slip ring grinding and repairing device

Abstract

The utility model relates to a slip ring grinding and repairing device which comprises a mounting seat, a bottom plate is arranged on the mounting seat, a lead screw is rotatably arranged on the bottom plate, a hand wheel is mounted at one end of the lead screw, a sliding block in sliding fit with the bottom plate is in threaded connection with the lead screw, an angle adjusting assembly is arranged on the sliding block, and a grinding device is mounted on the angle adjusting assembly. The slip ring is ground in the running state of the generator, the repair convenience can be improved, the influence on the coaxiality of the slip ring due to the problem of installation errors during repair can be avoided, the overall size of the device is small, and the device is suitable for machining in a narrow space between a generator bearing seat and a rotor.

Description

Technical Field

[0001] This utility model relates to the field of slip ring repair technology, specifically to a slip ring grinding and repair device. Background Technology

[0002] The rotor slip ring of a synchronous generator is an important electrical component in a synchronous generator. It is mainly used to connect the generator rotor and the external circuit. The slip ring is usually installed on the rotor shaft to carry current and ensure that electrical energy is transferred from the generator to the power grid, realizing the transmission and distribution of electrical energy. Due to factors such as electrolytic corrosion, improper installation and adjustment, and poor manufacturing process, the rotor slip ring of a synchronous generator may have large scratches, and there may be arcing and poor contact between the slip ring and the carbon brush.

[0003] Currently, the main methods for on-site repair of generator rotor slip rings are turning and manual grinding. Turning is not suitable for environments with limited space. Manual grinding requires highly skilled operators, and the concentricity of the repaired slip ring cannot be guaranteed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a slip ring grinding and repair device.

[0005] The purpose of this utility model can be achieved through the following technical solution: a slip ring grinding and repair device, including a mounting base, a base plate on the mounting base, a lead screw rotatably mounted on the base plate, a handwheel mounted on one end of the lead screw, a slider threadedly connected to the lead screw and slidingly engaged with the base plate, an angle adjustment component on the slider, and a grinding device mounted on the angle adjustment component.

[0006] Preferably, the angle adjustment component includes a right-angle base and a clamp. The right-angle base has an adjustment hole, and an adjustment bolt is provided in the adjustment hole. The adjustment bolt is threadedly connected to the clamp.

[0007] Preferably, there are two symmetrical adjustment holes for waist adjustment.

[0008] Preferably, the grinding device is a pneumatic angle grinder, and a grinding wheel is installed at the output end of the pneumatic angle grinder.

[0009] Preferably, the pneumatic angle grinder is equipped with an adjustable air intake valve.

[0010] The beneficial effects of this utility model are: this utility model can grind the slip ring while the generator is running, which not only improves the convenience of repair, but also avoids the impact of installation errors on the coaxiality of the slip ring during repair. The overall size of the device is small, making it suitable for processing in the narrow space between the generator bearing housing and the rotor. Attached Figure Description

[0011] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a slip ring grinding and repair device according to the present invention.

[0013] Figure 2 This is another structural schematic diagram of a slip ring grinding and repair device according to the present invention.

[0014] Figure 3 This is a schematic diagram of the installation of a slip ring grinding and repair device according to the present invention.

[0015] The labels in the diagram represent: 1. Mounting base; 2. Base plate; 3. Lead screw; 4. Handwheel; 5. Slider; 6. Right-angle base; 7. Clamp; 8. Adjusting waist hole; 9. Adjusting bolt; 10. Pneumatic angle grinder; 11. Grinding wheel; 12. Adjusting air inlet valve. Detailed Implementation

[0016] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0017] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0018] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] See Figures 1 to 3As shown, the structure of this utility model is as follows: a slip ring grinding and repair device, including a mounting base 1. Based on a generator bearing housing, the mounting base 1 is bolted to the lifting lug screw holes of the generator bearing housing. A base plate 2 is provided on the mounting base 1, and the base plate 2 is mounted and fixed on the mounting base 1, parallel to the generator rotor shaft and perpendicular to the generator rotor slip ring. Then, the generator is started and rotated to make the rotor slip ring rotate. A lead screw 3 is rotatably mounted on the base plate 2, and a handwheel 4 is installed at one end of the lead screw 3. A slider that slides with the base plate 2 is threaded onto the lead screw 3. 5. Turn the handwheel 4. Through the threaded engagement of the lead screw 3 and the slider 5, the slider 5 is moved along the base plate 2. The slider 5 is equipped with an angle adjustment component, on which a grinding device is installed. Start the grinding device and adjust its angle through the angle adjustment device to make the grinding device fit against the slip ring. Then, the slider 5 drives the grinding device to move parallel to the generator rotor shaft to grind and repair the slip ring. Since the slip ring is ground while the generator is running, the coaxiality of the slip ring is avoided due to installation errors during repair.

[0020] like Figure 1 , Figure 2 As shown, the angle adjustment assembly includes a right-angle base 6 and a clamp 7. The grinding device is installed on the clamp 7. The right-angle base 6 has an adjustment waist hole 8, which is arc-shaped. An adjustment bolt 9 is installed in the adjustment waist hole 8. The adjustment bolt 9 is threadedly connected to the clamp 7. The clamp 7 is installed in the adjustment waist hole 8 by adjusting the bolt 9. When adjusting the angle of the grinding device, the adjustment bolt 9 is loosened so that the clamp 7 can move along the adjustment waist hole 8. After adjustment, the adjustment bolt 9 is tightened again.

[0021] In this embodiment, two symmetrical adjustment holes 8 are provided, which helps to improve the stability of the clamp 7 during installation.

[0022] Furthermore, the grinding device is a pneumatic angle grinder 10, which is powered by compressed air. The pneumatic angle grinder 10 is equipped with an air inlet, and the compressed air source hose is connected to the air inlet via a quick connector. A grinding wheel 11 is installed at the output end of the pneumatic angle grinder 10. The compressed air drives the pneumatic angle grinder 10 to rotate, thereby driving the grinding wheel 11 to grind and repair the slip ring.

[0023] Furthermore, the pneumatic angle grinder 10 is equipped with an adjustable air intake valve 12. Specifically, by adjusting the opening of the adjustable air intake valve 12, the amount of air entering the pneumatic angle grinder 10 is controlled, thereby adjusting the speed and power of the pneumatic angle grinder 10 to meet different grinding needs.

[0024] In practical use, such as Figure 3As shown, using the generator bearing housing as a base, the mounting base 1 is bolted to the lifting lug screw hole of the generator bearing housing. Then, the generator is started to rotate, causing the rotor slip ring to rotate. Next, the angle of the grinding device is adjusted by the angle adjustment device so that the grinding device fits against the slip ring. Then, the handwheel 4 is turned, and the lead screw 3 and the slider 5 are threaded together, causing the slider 5 to move along the base plate 2, which in turn causes the grinding device to move parallel to the generator rotor shaft to grind and repair the slip ring. Since the generator rotor slip ring is rotated and ground while the generator is running, the coaxiality of the slip ring is avoided due to installation errors during repair.

[0025] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A slip ring grinding and repair device, characterized in that: Includes a mounting base (1), on which a base plate (2) is provided, and a lead screw (3) is rotatably provided on the base plate (2). A handwheel (4) is installed at one end of the lead screw (3), and a slider (5) that slides with the base plate (2) is threadedly connected to the lead screw (3). An angle adjustment component is provided on the slider (5), and a grinding device is installed on the angle adjustment component.

2. The slip ring grinding and repair device according to claim 1, characterized in that: The angle adjustment assembly includes a right-angle base (6) and a clamp (7). The right-angle base (6) has an adjustment waist hole (8) and an adjustment bolt (9) is provided in the adjustment waist hole (8). The adjustment bolt (9) is threadedly connected to the clamp (7).

3. The slip ring grinding and repair device according to claim 2, characterized in that: The adjustable waist hole (8) is provided in two symmetrically.

4. The slip ring grinding and repair device according to claim 1, characterized in that: The grinding device is a pneumatic angle grinder (10), and a grinding wheel (11) is installed at the output end of the pneumatic angle grinder (10).

5. The slip ring grinding and repair device according to claim 4, characterized in that: The pneumatic angle grinder (10) is equipped with an adjustable air intake valve (12).

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