Grinding device for valve maintenance

Abstract

The utility model relates to the field of valve maintenance, in particular to a grinder for valve maintenance, and aims to solve the technical problems that a grinding structure on the valve grinder is inconvenient to replace and the stability of the grinding structure is poor during use. According to the technical scheme, the grinder for valve maintenance comprises a shell, a hydraulic cylinder, a positioning assembly, a grinding assembly, a bearing assembly, a grip assembly and a movable assembly; by means of the multiple handles, a user can conveniently move the device to work, and the hydraulic cylinder is matched to drive the movable block to move front and back along the inner wall of the supporting plate; according to the valve grinder, the grinding disc driven by the motor rotates to efficiently grind and repair the inner wall of a valve, then the grinding disc can be rapidly taken down through the two fixing bolts to be replaced, and the problems that a grinding structure on the valve grinder is inconvenient to replace, and the stability of the grinding structure is poor during use are solved.

Description

Technical Field

[0001] The utility model belongs to the field of valve maintenance, and particularly relates to a grinder for valve maintenance. Background Art

[0002] A grinder for valve maintenance is generally a tool used to repair the sealing surface of a valve. It usually includes a grinding head and a handle. By rotating the grinding head, the flatness and sealing performance of the valve sealing surface can be repaired. This tool is usually used to repair scratches, pits or other damages on the valve sealing surface to ensure the normal operation and sealing performance of the valve.

[0003] The grinding structure of the existing valve grinder is often installed on the grinder through bolts. However, during use, since the grinding structure needs to rotate at a high speed to grind and repair the inner wall of the valve, the strong centrifugal force often causes the grinding disc to rotate along the outer wall of the bolt, thus easily damaging the bolt and itself.

[0004] Therefore, aiming at the problems that it is difficult to open and replace the grinding structure as needed during the use of the above-mentioned valve grinder, and the stability of the grinding structure is not good during use, a grinder for valve maintenance is developed. By adding a front and rear adjustment structure, a four-point clamping structure and a handle lifting structure to the valve maintenance grinder, the grinding disc of the device can be quickly replaced, and the inner wall of a small valve can be efficiently ground and repaired deeply. Moreover, the stability of the device during use can be improved, so as to facilitate the device to perform efficient grinding and repair processing on small valves. Summary of the Utility Model

[0005] In order to overcome the problems that the grinding structure on the valve grinder is not convenient to replace and the stability of the grinding structure is not good during use.

[0006] The technical solution of the utility model is as follows: A grinder for valve maintenance includes a housing and a hydraulic cylinder, and also includes a positioning component, a grinding component, a bearing component, a handle component and a movable component. The bearing component is in a cylindrical shape, and a hydraulic cylinder is installed therein. The outer wall of the hydraulic cylinder is protected by the housing. The front end of the hydraulic cylinder is installed with a movable component that slides back and forth. The front end of the movable component is installed with a grinding component that is installed in a threaded manner. The outer wall of the bearing component is provided with a handle component to assist the user in moving the device.

[0007] Preferably, multiple grip components facilitate the user to lift and carry the device, making it convenient to use the device. In cooperation with the hydraulic cylinder driving the movable component to slide back and forth along the inner wall of the bearing component, deep grinding and repair can be performed on the inner wall of the valve. Moreover, the grinding component installed by threading can quickly remove the grinding tool as needed and firmly limit and fix the grinding tool during use, thus achieving efficient grinding and repair of the valve according to its size.

[0008] Preferably, the bearing component includes a support plate, a limiting groove, a bearing platform, and a second groove. The upper end of the bearing platform is fixedly connected with support plates installed equidistantly around the bearing platform for one week. The front end of the support plate is provided with a limiting groove. The front and rear ends of the bearing platform are penetrated and provided with second grooves. A hydraulic cylinder is installed in the second grooves. The outer wall of the hydraulic cylinder is installed with a housing, and the front end of the housing is connected to the rear end of the bearing platform. During use, the limiting groove and the limiting block cooperate to provide limitation when the hydraulic cylinder drives the movable block to move back and forth, preventing it from shaking and affecting the grinding effect of the grinding disc on the inner wall of the valve.

[0009] Preferably, the movable component includes a movable block, a limiting block, a mounting cylinder, and a motor. The front end of the telescopic rod of the hydraulic cylinder is fixedly connected with the movable block. The outer wall of the movable block is fixedly connected with limiting blocks installed equidistantly around the movable block for one week. The limiting block is adapted to the limiting groove. The front end of the movable block is fixedly connected with a mounting cylinder, and a motor is fixedly installed in the mounting cylinder. During use, the hydraulic cylinder drives the movable block to slide back and forth along the inner wall of the support plate, and thus deep grinding and repair can be performed on the inner wall of the valve.

[0010] Preferably, the grinding component includes a first fixing bolt, a grinding disc, a second fixing bolt, a first convex block, a groove, and a second convex block. The front end of the output unit of the motor is fixedly connected with the second fixing bolt, and the front end of the second fixing bolt is fixedly connected with first convex blocks distributed equidistantly with the second fixing bolt as the center. The first fixing bolt is threadedly installed on the second fixing bolt. During use, the first fixing bolt and the second fixing bolt cooperate to quickly remove the grinding disc from the second fixing bolt, thus facilitating the user to replace and maintain the grinding disc.

[0011] Preferably, the rear end of the first fixing bolt is fixedly connected with second convex blocks distributed equidistantly around the grinding disc for one week. The front and rear ends of the grinding disc are provided with grooves distributed equidistantly with the grinding disc as the center. The grooves are adapted to the first convex blocks and the second convex blocks. During use, in cooperation with the adaptation of the first convex blocks and the second convex blocks to the grooves, the grinding disc can be limited and fixed to prevent it from idling during the processing.

[0012] Preferably, the positioning assembly includes a positioning ring, an electric cylinder, a first groove body, and a positioning block. A positioning ring is fixedly connected to the front end of the support plate. The outer wall of the positioning ring is provided with a first groove body that penetrates through and is equidistantly arranged around the positioning ring for one week. An electric cylinder is installed in the first groove body. The ends of the telescopic rods of the electric cylinders that are close to each other are fixedly connected with positioning blocks. When in use, the four electric cylinders drive the positioning blocks to fix the outer wall of the valve at four points, thereby providing stable support for the device and fixing it on the valve, facilitating the user to use the device.

[0013] Preferably, the handle assembly includes a connecting block and a handle. The connecting block is fixedly connected to the outer wall of the support plate. The ends of the connecting blocks that are far away from each other are fixedly connected with handles. When in use, through the multiple handles, it is convenient for the user to carry the device, thereby facilitating the user to perform grinding and repair work on the valve.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Through the convex block limiting structure on the grinding assembly and the rotating installation structure, the grinding disc can be quickly removed according to needs and firmly limited and fixed. The handle assembly facilitates the user to carry the device, and the hydraulic cylinder drives the movable assembly to make the grinding assembly slide back and forth along the inner wall of the bearing assembly, thereby grinding and repairing the deep part of the inner wall of the valve and improving the grinding and repair efficiency of the device;

[0016] 2. The four electric cylinders drive the positioning blocks to fix the outer wall of the valve at four points, thereby providing stable support for the device and fixing it on the valve, facilitating the user to use the device;

[0017] 3. The first convex block and the second convex block are adapted to the groove, which can limit and fix the grinding disc to prevent it from idling during the processing;

[0018] 4. The limiting groove and the limiting block cooperate to provide limitation when the hydraulic cylinder drives the movable block to move back and forth, preventing it from shaking and affecting the grinding effect of the grinding disc on the inner wall of the valve. Description of the Drawings

[0019] Figure 1 Shown is a three-dimensional structural schematic diagram of a grinding device for valve repair of the present utility model;

[0020] Figure 2 Shown is a three-dimensional structural split schematic diagram of a grinding device for valve repair of the present utility model;

[0021] Figure 3 Shown is a three-dimensional structural schematic diagram of the bearing assembly and the handle assembly of a grinding device for valve repair of the present utility model;

[0022] Figure 4 The figure shows a schematic exploded perspective view of the movable assembly of a grinding device for valve repair according to the present utility model;

[0023] Figure 5 The figure shows a schematic exploded perspective view of the grinding assembly and the positioning assembly of a grinding device for valve repair according to the present utility model.

[0024] Explanation of reference numerals: 101 - positioning ring, 102 - electric cylinder, 103 - first groove, 104 - positioning block, 201 - first fixing bolt, 202 - grinding disc, 203 - second fixing bolt, 204 - first convex block, 205 - groove, 206 - second convex block, 301 - support plate, 302 - limiting groove, 303 - bearing platform, 304 - second groove, 401 - connecting block, 402 - handle, 5 - outer shell, 6 - hydraulic cylinder, 701 - movable block, 702 - limiting block, 703 - mounting cylinder, 704 - motor. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Please refer to Figure 1-2 , the present utility model provides an embodiment: a grinding device for valve repair, including an outer shell 5 and a hydraulic cylinder 6, and further including a positioning assembly, a grinding assembly, a bearing assembly, a grip assembly, and a movable assembly. The bearing assembly is cylindrical, and a hydraulic cylinder 6 is installed therein. The outer wall of the hydraulic cylinder 6 is provided with an outer shell 5 for protection. The front end of the hydraulic cylinder 6 is installed with a movable assembly that slides back and forth. The front end of the movable assembly is installed with a grinding assembly that is installed in a threaded manner. The outer wall of the bearing assembly is provided with a grip assembly for assisting the user to move the device. Through a plurality of grip assemblies, the user can conveniently lift and hold the device, facilitating the use of the device. In cooperation with the hydraulic cylinder 6 driving the movable assembly to slide back and forth along the inner wall of the bearing assembly, the deep part of the inner wall of the valve can be ground and repaired. Moreover, through the grinding assembly installed in a threaded manner, the grinding tool can be quickly removed according to needs, and the grinding tool can be firmly limited and fixed during use, thereby realizing efficient grinding and repair work on the valve according to the size of the valve.

[0027] Please refer to Figure 3, in this embodiment, the bearing assembly includes a support plate 301, a limiting groove 302, a bearing platform 303, and a second groove 304. At the upper end of the bearing platform 303, a support plate 301 is fixedly connected and evenly installed around the bearing platform 303 for one week. A limiting groove 302 is opened at the front end of the support plate 301. Second grooves 304 are penetrated and opened at the front and rear ends of the bearing platform 303. A hydraulic cylinder 6 is installed in the second groove 304. An outer shell 5 is installed on the outer wall of the hydraulic cylinder 6. The front end of the outer shell 5 is connected to the rear end of the bearing platform 303. When in use, through the cooperation of the limiting groove 302 and the limiting block 702, when the hydraulic cylinder 6 drives the movable block 701 to move back and forth, it can provide limitation to prevent it from shaking and affecting the grinding effect of the grinding disc 202 on the inner wall of the valve. The handle assembly includes a connecting block 401 and a handle 402. The connecting block 401 is fixedly connected to the outer wall of the support plate 301. The handle 402 is fixedly connected to the mutually remote ends of the connecting block 401. When in use, through a plurality of handles 402, it is convenient for the user to carry the device, thereby facilitating the user to perform grinding and repair work on the valve.

[0028] Please refer to Figure 4-5 , in this embodiment, the movable assembly includes a movable block 701, a limiting block 702, an installation cylinder 703, and a motor 704. The front end of the telescopic rod of the hydraulic cylinder 6 is fixedly connected to the movable block 701. The limiting block 702 is fixedly connected to the outer wall of the movable block 701 and evenly installed around the movable block 701 for one week. The limiting block 702 is adapted to the limiting groove 302. The installation cylinder 703 is fixedly connected to the front end of the movable block 701. The motor 704 is fixedly connected in the installation cylinder 703. When in use, the hydraulic cylinder 6 drives the movable block 701 to slide back and forth along the inner wall of the support plate 301, and thus the deep part of the inner wall of the valve can be ground and repaired.

[0029] Preferably, the grinding assembly includes a first fixing bolt 201, a grinding disc 202, a second fixing bolt 203, a first convex block 204, a groove 205, and a second convex block 206. The front end of the output unit of the motor 704 is fixedly connected to the second fixing bolt 203. The front end of the second fixing bolt 203 is fixedly connected to the first convex blocks 204 that are equidistantly distributed around the second fixing bolt 203 as the center. The first fixing bolt 201 is threadedly installed on the second fixing bolt 203. During use, the grinding disc 202 can be quickly removed from the second fixing bolt 203 by the cooperation of the first fixing bolt 201 and the second fixing bolt 203, facilitating the user to replace and maintain the grinding disc 202. The rear end of the first fixing bolt 201 is fixedly connected to the second convex blocks 206 that are equidistantly distributed around the grinding disc 202 for one week. The front and rear ends of the grinding disc 202 are provided with grooves 205 that are equidistantly distributed around the grinding disc 202 as the center. The grooves 205 are adapted to the first convex blocks 204 and the second convex blocks 206. During use, in cooperation with the adaptation of the first convex blocks 204 and the second convex blocks 206 to the grooves 205, the grinding disc can be limited and fixed to prevent it from idling during the processing. The positioning assembly includes a positioning ring 101, an electric cylinder 102, a first groove body 103, and a positioning block 104. The front end of the support plate 301 is fixedly connected to the positioning ring 101. The outer wall of the positioning ring 101 is penetrated and provided with the first groove bodies 103 that are equidistantly arranged around the positioning ring 101 for one week. The electric cylinder 102 is installed in the first groove body 103. The ends of the telescopic rods of the electric cylinder 102 that are close to each other are fixedly connected to the positioning block 104. During use, the outer wall of the valve is fixed at four points by driving the positioning block 104 through the four electric cylinders 102, thereby providing stable support for the device and fixing it on the valve, facilitating the user to use the device.

[0030] When working, first, hold the handle 402 by hand, move the device to the front of the water inlet of the valve that affects grinding, and install the appropriate grinding disc 202 on the second fixing bolt 203, and fix it with the cooperation of the first fixing bolt 201. Then, place the outer wall of the valve inside the positioning ring 101, and then start the electric cylinder 102 to drive the positioning block 104 to clamp and fix the outer wall of the valve at four points, providing stable support for the device.

[0031] Next, start the motor 704. The motor 704 drives the grinding disc 202 to rotate at a high speed. In cooperation with starting the hydraulic cylinder 6, the hydraulic cylinder 6 drives the movable block 701 to move back and forth along the inner wall of the support plate 301, so that the high-speed rotating grinding disc 202 grinds and repairs the damaged part of the inner wall of the valve, and can also grind and repair the damaged part deep in the valve.

[0032] Through the above steps, multiple handles 402 facilitate the user to move the device for work, and cooperate with the hydraulic cylinder 6 to drive the movable block 701 to move back and forth along the inner wall of the support plate 301, so that the grinding disc 202 driven by the motor 704 rotates to perform efficient grinding and repair work on the inner wall of the valve. Then, the grinding disc 202 can be quickly removed and replaced by two fixing bolts, solving the problems that the grinding structure on the valve grinder is inconvenient to replace and the stability of the grinding structure is poor during use.

[0033] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A lapping machine for valve maintenance, comprising a housing (5) and a hydraulic cylinder (6), characterized in that: It also includes a positioning component, a grinding component, a bearing component, a grip component, and a movable component. The bearing component is cylindrical, and a hydraulic cylinder (6) is installed therein. The outer wall of the hydraulic cylinder (6) is provided with a housing (5) for protection. The front end of the hydraulic cylinder (6) is installed with a movable component that slides back and forth. The front end of the movable component is installed with a grinding component in a threaded manner. The outer wall of the bearing component is provided with a grip component to assist the user in moving the device.

2. The lapping machine for valve repair according to claim 1, wherein: The bearing component includes a support plate (301), a limit groove (302), a bearing table (303), and a second groove body (304). The upper end of the bearing table (303) is fixedly connected with support plates (301) that are equidistantly installed around the bearing table (303). The front end of the support plate (301) is provided with a limit groove (302). The front and rear ends of the bearing table (303) are penetrated and provided with second groove bodies (304). A hydraulic cylinder (6) is installed in the second groove body (304). The outer wall of the hydraulic cylinder (6) is installed with a housing (5), and the front end of the housing (5) is connected to the rear end of the bearing table (303).

3. The lapping tool for valve repair according to claim 2, characterized in that: The movable component includes a movable block (701), a limit block (702), an installation cylinder (703), and a motor (704). The front end of the telescopic rod of the hydraulic cylinder (6) is fixedly connected with a movable block (701). The outer wall of the movable block (701) is fixedly connected with limit blocks (702) that are equidistantly installed around the movable block (701). The limit blocks (702) are adapted to the limit grooves (302). The front end of the movable block (701) is fixedly connected with an installation cylinder (703), and a motor (704) is fixedly installed in the installation cylinder (703).

4. The lapping machine for valve maintenance according to claim 3, wherein: The grinding component includes a first fixing bolt (201), a grinding disc (202), a second fixing bolt (203), a first convex block (204), a groove (205), and a second convex block (206). The front end of the output unit of the motor (704) is fixedly connected with a second fixing bolt (203). The front end of the second fixing bolt (203) is fixedly connected with first convex blocks (204) that are equidistantly distributed with the second fixing bolt (203) as the center. The first fixing bolt (201) is threadedly installed on the second fixing bolt (203).

5. The lapping machine for valve repair according to claim 4, wherein: The rear end of the first fixing bolt (201) is fixedly connected with second convex blocks (206) that are equidistantly distributed with the first fixing bolt (201) as the center. The front and rear ends of the grinding disc (202) are provided with grooves (205) that are equidistantly distributed around the grinding disc (202). The grooves (205) are adapted to the first convex blocks (204) and the second convex blocks (206).

6. The lapping machine for valve repair according to claim 5, characterized in that: The positioning component includes a positioning ring (101), an electric cylinder (102), a first groove body (103), and a positioning block (104). The front end of the support plate (301) is fixedly connected with a positioning ring (101). The outer wall of the positioning ring (101) is penetrated and provided with first groove bodies (103) that are equidistantly arranged around the positioning ring (101). An electric cylinder (102) is installed in the first groove body (103). The ends of the telescopic rods of the electric cylinder (102) that are close to each other are fixedly connected with a positioning block (104).

7. A grinder for valve repair according to claim 6, characterized in that: The grip assembly includes a connecting block (401) and a handle (402). The connecting block (401) is fixedly connected to the outer wall of the support plate (301), and the handles (402) are fixedly connected to the opposite ends of the connecting block (401).

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