Grinding and polishing device

Abstract

The utility model discloses a grinding and polishing device, which relates to the technical field of grinding and polishing, and comprises a main body support, the bottom of the main body support is rotatably connected with four supporting wheels, the upper end face of the main body support is slidably connected with a movable block, the upper end of the movable block is connected with an electric cylinder support, and the top of the electric cylinder support is connected with an electric cylinder. The output end of the electric cylinder penetrates through the top of the electric cylinder support and is connected with the upper surface of the movable plate, the movable plate is slidably connected with the electric cylinder support, the lower surface of the movable plate is connected with two fixing columns, the fixing columns penetrate through the movable block and are in sliding contact with the movable block, and the lower ends of the fixing columns are connected with the grinding and polishing mechanism. According to the rail grinding and polishing device, the position of the grinding and polishing mechanism is adjusted through the electric cylinder and the moving unit to be matched with the six rubber wheels, the rail grinding range, strength and speed are conveniently controlled, and the grinding efficiency is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, in particular to a grinding and polishing device. Background Art

[0002] When a train runs on a track, the wheel hub will generate a great extrusion and impact force on the rail. The surface of the rail will be damaged in various ways, such as corrugations, flash, cracks, etc. under the long-term action of this force. Such rail damage will affect the running stability of the train. When grinding the rail, small-scale grinding operations usually use small grinding equipment. Usually, the small grinding equipment uses a grinding wheel to grind the rail. However, the surface of the rail is usually arc-shaped, and the fit between the grinding wheel and the rail is poor. It is not easy to control the grinding contact range. When grinding, it may be necessary to adjust the angle of the grinding wheel to repeatedly grind a section of the rail, which affects the construction efficiency.

[0003] Based on this, a grinding and polishing device is provided now, which can eliminate the disadvantages of the existing device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a grinding and polishing device to solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grinding and polishing device includes a main body bracket. Four support wheels are rotatably connected to the bottom of the main body bracket. An activity block is slidably connected to the upper end surface of the main body bracket. An electric cylinder bracket is connected to the upper end of the activity block. An electric cylinder is connected to the top of the electric cylinder bracket. The output end of the electric cylinder penetrates through the top of the electric cylinder bracket and is connected to the upper surface of an activity plate. The activity plate is slidably connected to the electric cylinder bracket. Two fixed columns are connected to the lower surface of the activity plate. The fixed columns penetrate through the activity block and are in sliding contact with the activity block. The lower ends of the fixed columns are connected to a grinding and polishing mechanism. A moving unit acting on the activity block is provided at the upper end of the main body bracket. A main control box is connected to the upper end surface of the main body bracket.

[0007] On the basis of the above technical solutions, the utility model also provides the following optional technical solutions:

[0008] In an alternative solution: The grinding and polishing mechanism includes a grinding bracket connected to the bottom end of the fixed column. A grinding motor is provided on the grinding bracket. The power output shaft of the grinding motor is coaxially connected to a driving rubber wheel. Horizontally from left to right at the lower end of the grinding bracket, there are a first supporting rubber wheel, a second supporting rubber wheel, a third supporting rubber wheel, and a fourth supporting rubber wheel. The grinding bracket is rotationally connected to the first supporting rubber wheel, the second supporting rubber wheel, the third supporting rubber wheel, and the fourth supporting rubber wheel. A tensioning structure is provided at the right end of the grinding bracket. The driving rubber wheel, the first supporting rubber wheel, the second supporting rubber wheel, the third supporting rubber wheel, the fourth supporting rubber wheel, and the tensioning structure are jointly sleeved within a sand belt.

[0009] In an alternative solution: The tensioning structure includes a telescopic cavity provided inside the right end of the grinding bracket. A spring is provided within the telescopic cavity. The right end of the telescopic cavity is slidably fitted with a telescopic column. The right end of the telescopic column is connected to a limiting strip. A limiting groove is provided through the upper surface of the limiting strip. A limiting bolt is slidably provided within the limiting groove. The limiting bolt is threadedly connected to the grinding bracket. The right end side of the telescopic column is rotationally connected to a tensioning rubber wheel.

[0010] In an alternative solution: The moving unit includes an adjustment motor fixedly connected to the upper surface of the main body bracket. The power output shaft of the adjustment motor is connected to the left end of a lead screw. The right end of the lead screw is rotationally connected to a fixed block. The fixed block is connected to the upper surface of the main body bracket. The lead screw passes through a movable block and is threadedly connected to the movable block.

[0011] In an alternative solution: The lower end of the main body bracket is connected to a driving motor. The power output shaft of the driving motor is connected to the right end of a first rotating shaft. The left end of the first rotating shaft is rotationally connected to the main body bracket. A driving gear is coaxially provided in the middle of the first rotating shaft. A second rotating shaft is provided in parallel below the first rotating shaft. The second rotating shaft passes through and is rotationally connected to the main body bracket. A support wheel is connected to each end of the second rotating shaft. A driven gear is coaxially connected to the position corresponding to the driving gear on the second rotating shaft. The driven gear meshes with the driving gear.

[0012] In an alternative solution: The driving rubber wheel, the first supporting rubber wheel, the second supporting rubber wheel, the third supporting rubber wheel, the fourth supporting rubber wheel, and the tensioning rubber wheel are located on the same side of the grinding bracket and the distance between their sides and the side of the grinding bracket is the same.

[0013] In an alternative solution: The movable block is a solid iron block.

[0014] In an alternative solution: A lifting lug is provided at the upper end of each of the four sides of the main body bracket.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The utility model adjusts the position of the grinding and polishing mechanism through an electric cylinder and a moving unit, and cooperates with six rubber wheels to conveniently control the range, strength and speed of rail grinding, optimize the grinding efficiency, and has strong practicability. Description of the Drawings

[0017] Figure 1 It is a front structural schematic diagram of the utility model.

[0018] Figure 2 It is a back structural schematic diagram of the utility model.

[0019] Figure 3 For the utility model Figure 2 Partial enlarged view of A in the figure.

[0020] Figure 4 It is a structural schematic diagram of the grinding and polishing mechanism of the utility model.

[0021] Figure 5 It is a partial sectional schematic diagram of the grinding and polishing mechanism of the utility model.

[0022] Annotation of reference numerals in the drawings: 101, main body bracket; 102, movable block; 103, electric cylinder bracket; 104, electric cylinder; 105, movable plate; 106, fixed column; 107, lifting lug; 201, position adjustment motor; 202, lead screw; 203, fixed block; 301, grinding bracket; 302, grinding motor; 303, driving rubber wheel; 304, first supporting rubber wheel; 305, second supporting rubber wheel; 306, third supporting rubber wheel; 307, fourth supporting rubber wheel; 308, abrasive belt; 401, telescopic cavity; 402, telescopic column; 403, spring; 404, limiting strip; 405, limiting groove; 406, limiting bolt; 407, tensioning rubber wheel; 501, supporting wheel; 502, first rotating shaft; 503, driving gear; 504, second rotating shaft; 505, driven gear; 506, driving motor; 601, main control box. Detailed Description of the Preferred Embodiments

[0023] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further elaborates on the utility model in conjunction with the drawings and embodiments. Embodiment 1

[0024] In one embodiment, as Figures 1 - 5 shown, a grinding and polishing device includes a main body bracket 101, and four supporting wheels 501 are rotatably connected to the bottom of the main body bracket 101.

[0025] In this embodiment, the upper end surface of the main body bracket 101 is slidably connected to the movable block 102. The upper end of the movable block 102 is connected to the electric cylinder bracket 103. The top of the electric cylinder bracket 103 is connected to the electric cylinder 104. The output end of the electric cylinder 104 penetrates through the top of the electric cylinder bracket 103 and is connected to the upper surface of the movable plate 105. The movable plate 105 is slidably connected to the electric cylinder bracket 103. The lower surface of the movable plate 105 is connected to two fixed columns 106. The fixed columns 106 penetrate through the movable block 102 and are in sliding contact with the movable block 102. The lower ends of the fixed columns 106 are connected to the grinding and polishing mechanism. The upper end of the main body bracket 101 is provided with a moving unit acting on the movable block 102. The upper end surface of the main body bracket 101 is connected to the main control box 601. The position of the grinding and polishing mechanism is controlled by the electric cylinder 104 and the moving unit, so as to conveniently control the grinding range, strength and speed of the railway track.

[0026] In one embodiment, as Figure 4 shown, the grinding and polishing mechanism includes a grinding bracket 301 connected to the bottom end of the fixed column 106. A grinding motor 302 is provided on the grinding bracket 301. The power output shaft of the grinding motor 302 is coaxially connected to a transmission rubber wheel 303. The lower end of the grinding bracket 301 is horizontally provided with a first support rubber wheel 304, a second support rubber wheel 305, a third support rubber wheel 306 and a fourth support rubber wheel 307 from left to right. The grinding bracket 301 is rotatably connected to the first support rubber wheel 304, the second support rubber wheel 305, the third support rubber wheel 306 and the fourth support rubber wheel 307. A tensioning structure is provided at the right end of the grinding bracket 301. The transmission rubber wheel 303, the first support rubber wheel 304, the second support rubber wheel 305, the third support rubber wheel 306, the fourth support rubber wheel 307 and the tensioning structure are jointly sleeved in a sand belt 308.

[0027] In one embodiment, as Figure 3 and Figure 5 shown, the tensioning structure includes a telescopic cavity 401 provided inside the right end of the grinding bracket 301. A spring 403 is provided in the telescopic cavity 401. The right end of the telescopic cavity 401 is slidably fitted with a telescopic column 402. The right end of the telescopic column 402 is connected to a limit strip 404. A limit groove 405 is provided through the upper surface of the limit strip 404. A limit bolt 406 is slidably provided in the limit groove 405. The limit bolt 406 is threadedly connected to the grinding bracket 301. The right end side of the telescopic column 402 is rotatably connected to a tensioning rubber wheel 407.

[0028] In one embodiment, as Figure 1As shown, the mobile unit includes an adjustment motor 201 fixedly connected to the upper surface of the main body bracket 101. The power output shaft of the adjustment motor 201 is connected to the left end of a lead screw 202. The right end of the lead screw 202 is rotatably connected to a fixed block 203, and the fixed block 203 is connected to the upper surface of the main body bracket 101. The lead screw 202 penetrates through a movable block 102 and is threadedly connected to the movable block 102.

[0029] In one embodiment, as Figure 1 shown, a driving motor 506 is connected to the lower end of the main body bracket 101. The power output shaft of the driving motor 506 is connected to the right end of a first rotating shaft 502. The left end of the first rotating shaft 502 is rotatably connected to the main body bracket 101. A driving gear 503 is coaxially provided in the middle of the first rotating shaft 502. A second rotating shaft 504 is provided in parallel below the first rotating shaft 502. The second rotating shaft 504 penetrates through and is rotatably connected to the main body bracket 101. A support wheel 501 is connected to each end of the second rotating shaft 504. A driven gear 505 is coaxially connected to the position of the second rotating shaft 504 corresponding to the driving gear 503. The driven gear 505 meshes with the driving gear 503. Embodiment 2

[0030] In one embodiment, as Figure 4 shown, the transmission rubber wheel 303, the first support rubber wheel 304, the second support rubber wheel 305, the third support rubber wheel 306, the fourth support rubber wheel 307, and the tensioning rubber wheel 407 are located on the same side of the grinding bracket 301 and the distance between their sides and the side of the grinding bracket 301 is the same.

[0031] In one embodiment, as Figure 1 shown, the movable block 102 is a solid iron block.

[0032] In one embodiment, as Figure 1 shown, a lifting lug 107 is provided at the upper end of each of the four sides of the main body bracket 101.

[0033] The above embodiments disclose a grinding and polishing device. When grinding and polishing a railway track, first operate the main control box 601 to control the position adjustment motor 201, so that the movable block 102 slides on the upper surface of the main body bracket 101. The movable block 102 drives the fixed column 106 and the grinding and polishing mechanism connected to the bottom of the fixed column 106, so that directly below between the first support rubber wheel 304 and the second support rubber wheel 305 is the left railway track, or directly below between the third support rubber wheel 306 and the fourth support rubber wheel 307 is the right railway track. Then operate the main control box 601 to adjust the height of the grinding and polishing mechanism by controlling the telescopic movement of the electric cylinder 104, so as to adjust the contact area and contact force between the abrasive belt 308 and the railway track, achieving the purpose of adjusting the grinding range and grinding force. Then operate the main control box 601 to start the grinding motor 302 and adjust its speed, thereby changing the grinding speed. Operate the main control box 601 to start the movement motor 506 and adjust its speed, so that the grinding and polishing device advances on the railway track at a certain speed. After the abrasive belt 308 contacts the railway track, the grinding center can be offset by controlling the operation of the position adjustment motor 201, achieving the effect of changing the grinding position. For example, for the left railway track, if the left railway track is closer to the first support rubber wheel 304, the grinding effect on the left side of the top of the left railway track will be stronger than the grinding effect on the right side of the top of the left railway track. On the contrary, if the left railway track is closer to the second support rubber wheel 305, the grinding effect on the left side of the top of the left railway track will be weaker than the grinding effect on the right side of the top of the left railway track.

[0034] As described above, the above are only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A grinding and polishing device, comprising a main body bracket (101), and four supporting wheels (501) are rotatably connected to the bottom of the main body bracket (101); Characterized in that, The upper end surface of the main body bracket (101) is slidably connected with a movable block (102), the upper end of the movable block (102) is connected with an electric cylinder bracket (103), the top of the electric cylinder bracket (103) is connected with an electric cylinder (104), the output end of the electric cylinder (104) penetrates through the top of the electric cylinder bracket (103) and is connected with the upper surface of a movable plate (105), the movable plate (105) is slidably connected with the electric cylinder bracket (103), the lower surface of the movable plate (105) is connected with two fixing columns (106), the fixing columns (106) penetrate through the movable block (102) and are in sliding contact with the movable block (102), the lower ends of the fixing columns (106) are connected with a grinding and polishing mechanism, a moving unit acting on the movable block (102) is arranged at the upper end of the main body bracket (101), and a main control box (601) is connected to the upper end surface of the main body bracket (101).

2. The abrasive and polishing device according to claim 1, characterized in that, The grinding and polishing mechanism comprises a grinding bracket (301) connected to the bottom end of the fixing column (106), a grinding motor (302) is arranged on the grinding bracket (301), a driving rubber wheel (303) is coaxially connected to the power output shaft of the grinding motor (302), a first supporting rubber wheel (304), a second supporting rubber wheel (305), a third supporting rubber wheel (306) and a fourth supporting rubber wheel (307) are horizontally arranged at the lower end of the grinding bracket (301) from left to right, the grinding bracket (301) is rotatably connected with the first supporting rubber wheel (304), the second supporting rubber wheel (305), the third supporting rubber wheel (306) and the fourth supporting rubber wheel (307), a tensioning structure is arranged at the right end of the grinding bracket (301), and the driving rubber wheel (303), the first supporting rubber wheel (304), the second supporting rubber wheel (305), the third supporting rubber wheel (306), the fourth supporting rubber wheel (307) and the tensioning structure are jointly sleeved in a sand belt (308).

3. A polishing device according to claim 2, characterized in that, The tensioning structure comprises a telescopic cavity (401) arranged inside the right end of the grinding bracket (301), a spring (403) is arranged in the telescopic cavity (401), the right end of the telescopic cavity (401) is slidably fitted with a telescopic column (402), the right end of the telescopic column (402) is connected with a limiting strip (404), a limiting groove (405) is arranged through the upper surface of the limiting strip (404), a limiting bolt (406) is slidably arranged in the limiting groove (405), the limiting bolt (406) is threadedly connected with the grinding bracket (301), and the right end side of the telescopic column (402) is rotatably connected with a tensioning rubber wheel (407).

4. A grinding and polishing device according to claim 1, characterized in that The mobile unit includes a positioning motor (201) fixedly connected to the upper surface of the main body bracket (101). The power output shaft of the positioning motor (201) is connected to the left end of a lead screw (202). The right end of the lead screw (202) is rotatably connected to a fixed block (203), and the fixed block (203) is connected to the upper surface of the main body bracket (101). The lead screw (202) passes through a movable block (102) and is threadedly connected to the movable block (102).

5. A grinding and polishing device according to claim 1, characterized in that, The lower end of the main body bracket (101) is connected to a driving motor (506). The power output shaft of the driving motor (506) is connected to the right end of a first rotating shaft (502). The left end of the first rotating shaft (502) is rotatably connected to the main body bracket (101). A driving gear (503) is coaxially provided in the middle of the first rotating shaft (502). A second rotating shaft (504) is arranged in parallel below the first rotating shaft (502). The second rotating shaft (504) passes through and is rotatably connected to the main body bracket (101). Two supporting wheels (501) are respectively connected to both ends of the second rotating shaft (504). A driven gear (505) is coaxially connected to the position of the second rotating shaft (504) corresponding to the driving gear (503), and the driven gear (505) meshes with the driving gear (503).

6. The abrasive polishing device according to claim 3, characterized in that, The driving rubber wheel (303), the first supporting rubber wheel (304), the second supporting rubber wheel (305), the third supporting rubber wheel (306), the fourth supporting rubber wheel (307) and the tensioning rubber wheel (407) are located on the same side of the grinding bracket (301) and the distance between their sides and the side of the grinding bracket (301) is the same.

7. A polishing device according to claim 1, characterized in that, The movable block (102) is a solid iron cube.

8. A polishing device according to claim 1, characterized in that, One lifting lug (107) is respectively provided at the upper ends of the four sides of the main body bracket (101).

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