Outer circle grinding device for well lid machining

Abstract

The utility model provides an outer circle polishing device for well lid machining, and relates to the technical field of well lid machining, the outer circle polishing device comprises a base, side openings are formed in the two sides of the base, a polishing groove is formed in the top of the base, and mounting frames are arranged at the positions, close to the edges of the two sides, in the polishing groove; according to the well lid grinding device, a well lid with the edge of the outer surface needing to be ground is placed in the grinding groove, the well lid is attracted through an electric control magnet, meanwhile, two limiting blocks extend into through holes in the well lid, and therefore the well lid is fixed; during grinding, the elastic pressure of the spring between the hexagonal movable plate and the hexagonal pressing plate can be adjusted by rotating the screw rod, so that the grinding pressure of the grinding roller on the outer surface of the well lid is changed, and the grinding roller compresses the spring outwards after encountering a larger bulge in the grinding process, so that buffering is performed, and damage to a connecting part caused by rigid impact is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover processing, in particular to an outer circle grinding device for manhole cover processing. Background Art

[0002] The outer circle grinding device for circular manhole cover processing is an auxiliary device used to grind the outer circle of the semi-finished product during the processing of the circular manhole cover so as to make it better for processing and production. It has been widely used in the field of manhole cover grinding.

[0003] At present, the grinding rollers of the existing manhole cover outer circle grinding devices are mostly rigidly fixed, and the outer surface of the grinding roller is in contact with the outer circle of the manhole cover. The outer circle of the manhole cover is ground under the relative rotation of the grinding roller and the manhole cover. However, since the grinding roller is rigidly fixed, when the protruding part of the outer circle of the manhole cover is large, it is easy to impact the grinding roller, causing the connection part of the grinding roller to loosen or be damaged. Utility Model Content

[0004] In order to solve the existing technical problems, the utility model provides an outer circle grinding device for processing a manhole cover.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A cylindrical grinding device for processing manhole covers comprises a base, side openings are provided on both sides of the base, a grinding groove is provided on the top of the base, mounting frames are provided inside the grinding groove near the edges on both sides, grinding rollers are rotatably connected between the internal top and bottom surfaces of the two mounting frames, brackets are fixed on the tops of the two mounting frames, second motors are fixed on the two brackets, and the output ends of the two second motors are fixed to one end of the grinding roller accordingly.

[0007] Optionally, an adjustment sleeve is fixed to the inner wall of one side of the two side openings, and a hexagonal movable plate is slidably connected to the inner walls of the two adjustment sleeves on the side close to and away from the base.

[0008] Optionally, one side of the two adjustment sleeves is threadedly connected with a screw rod, and one end of the two screw rods is rotatably connected to one side of the hexagonal movable plate.

[0009] Optionally, a hexagonal pressure plate is slidably connected to one side of the inner wall of the two adjustment sleeves close to the base, a spring is fixed to one side of the two hexagonal pressure plates, and one end of the two springs is correspondingly fixed to the hexagonal movable plate.

[0010] Optionally, a hexagonal rod is fixed to the other side of the two hexagonal pressure plates, the two hexagonal rods extend to the inside of the grinding groove respectively, and one end of the two hexagonal rods is fixed to one side of the mounting frame respectively.

[0011] Optionally, an inner cavity is formed on the inner bottom surface of the grinding groove, a first motor is fixed inside the inner cavity, an annular groove is formed on the inner wall of the grinding groove, and a turntable is arranged on the inner bottom surface of the grinding groove.

[0012] Optionally, the output end of the first motor is fixed to the bottom of the turntable, a retaining ring is fixed on the outer surface of the turntable and slides into the annular groove, an electric-controlled magnet is arranged inside the turntable, two limit blocks are fixed on the top of the turntable, and an annular opening is opened on the top of the turntable near the edge of the outer surface.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. In the utility model, the manhole cover whose outer surface edge needs to be ground is placed inside the grinding groove, adsorbed by an electric-controlled magnet, and two limit blocks are extended to the inside of the through hole on the manhole cover to fix the manhole cover. During grinding, the elastic pressure of the spring between the hexagonal movable plate and the hexagonal pressure plate can be adjusted by rotating the screw rod, thereby changing the grinding pressure of the grinding roller on the outer surface of the manhole cover. When the grinding roller encounters a larger protrusion during the grinding process, the spring will be compressed outward, thereby providing a buffer to prevent rigid impact from causing damage to the connection part.

[0015] 2. In the utility model, when grinding the outer surface of the manhole cover, the first motor is started to drive the turntable to rotate, thereby driving the manhole cover to rotate, and the second motor is started to drive the grinding roller to rotate, wherein the turntable rotates clockwise and the grinding roller rotates counterclockwise. The grinding force on the grinding surface can be increased by the opposite rotation of the turntable and the grinding roller. When the turntable rotates, the turntable can be supported by the mutual engagement of the retaining ring and the annular groove to prevent the turntable and the manhole cover placed thereon from generating a vertical downward force acting on the axial direction of the first motor and damaging the first motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 The utility model provides a top view of a three-dimensional structural diagram of an outer cylindrical grinding device for manhole cover processing;

[0018] Figure 2 The utility model provides a schematic diagram of a cross-sectional three-dimensional structure of an external cylindrical grinding device for manhole cover processing;

[0019] Figure 3 For this utility model Figure 2 Magnified view at A in the middle;

[0020] Figure 4 For this utility model Figure 2 Magnified view at B.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Base; 2. Side opening; 3. Grinding groove; 4. Turntable; 5. Limit block; 6. Adjusting sleeve; 7. Screw; 8. Electric control magnet; 9. Inner cavity; 10. First motor; 11. Hexagonal movable plate; 12. Spring; 13. Hexagonal pressure plate; 14. Hexagonal rod; 15. Mounting frame; 16. Second motor; 17. Bracket; 18. Grinding roller; 19. Annular groove; 20. Snap ring; 21. Annular opening.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] The utility model will now be further described in detail with reference to the accompanying drawings.

[0025] Embodiment 1, as Figure 1-4 As shown, the utility model provides a technical solution of an external cylindrical grinding device for manhole cover processing: it includes a base 1, side openings 2 are opened on both sides of the base 1, a grinding groove 3 is opened on the top of the base 1, mounting frames 15 are arranged inside the grinding groove 3 near the edges on both sides, grinding rollers 18 are rotatably connected between the internal top and bottom surfaces of the two mounting frames 15, brackets 17 are fixed on the tops of the two mounting frames 15, second motors 16 are fixed on the two brackets 17, and the output ends of the two second motors 16 are fixed to one end of the grinding roller 18 accordingly.

[0026] The effect achieved by the entire embodiment 1 is that when using the present device, the manhole cover whose outer surface edge needs to be ground is placed inside the grinding groove 3, adsorbed by the electric-controlled magnet 8, and at the same time, the two limit blocks 5 are extended to the inside of the through hole on the manhole cover to fix the manhole cover. During grinding, the elastic pressure of the spring 12 between the hexagonal movable plate 11 and the hexagonal pressure plate 13 can be adjusted by rotating the screw 7, thereby changing the grinding pressure of the grinding roller 18 on the outer surface of the manhole cover. During the grinding process, when the grinding roller 18 encounters a larger protrusion, the spring 12 will be compressed outwardly, thereby providing buffering to prevent rigid impact from causing damage to the connection part.

[0027] Embodiment 2, as Figure 1-4As shown, an adjusting sleeve 6 is fixed to the inner wall of one side of the two side openings 2, a hexagonal movable plate 11 is slidably connected to the inner wall of the two adjusting sleeves 6 on the side close to and away from the base 1, a screw rod 7 is threadedly connected to one side of the two adjusting sleeves 6, one end of the two screw rods 7 is rotatably connected to one side of the hexagonal movable plate 11, a hexagonal pressure plate 13 is slidably connected to the inner wall of the two adjusting sleeves 6 on the side close to the base 1, a spring 12 is fixed to one side of the two hexagonal pressure plates 13, one end of the two springs 12 is correspondingly fixed to the hexagonal movable plate 11, a hexagonal rod 14 is fixed to the other side of the two hexagonal pressure plates 13, and the two hexagonal rods 1 4 extends to the inside of the grinding groove 3, one end of the two hexagonal rods 14 is fixed to one side of the mounting frame 15, the inner bottom surface of the grinding groove 3 is provided with an inner cavity 9, the inner cavity 9 is fixed with a first motor 10, the inner wall of the grinding groove 3 is provided with an annular groove 19, the inner bottom surface of the grinding groove 3 is provided with a turntable 4, the output end of the first motor 10 is fixed to the bottom of the turntable 4, the outer surface of the turntable 4 is fixed with a snap ring 20 that is slidably engaged in the annular groove 19, the inside of the turntable 4 is provided with an electric control magnet 8, the top of the turntable 4 is fixed with two limit blocks 5, and the top of the turntable 4 is provided with an annular opening 21 near the edge of the outer surface.

[0028] The effect achieved by the entire embodiment 2 is that when grinding the outer surface of the manhole cover, the turntable 4 is driven to rotate by starting the first motor 10, thereby driving the manhole cover to rotate, and the second motor 16 is started to drive the grinding roller 18 to rotate, wherein the turntable 4 rotates clockwise and the grinding roller 18 rotates counterclockwise. The grinding force on the grinding surface can be increased by the opposite rotation of the turntable 4 and the grinding roller 18. When the turntable 4 rotates, the turntable 4 can be supported by the mutual engagement of the retaining ring 20 and the annular groove 19 to prevent the turntable 4 and the manhole cover placed thereon from generating a vertical downward force acting on the axial direction of the first motor 10, thereby damaging the first motor 10.

[0029] Working principle: When using this device, place the manhole cover whose outer surface edge needs to be ground inside the grinding groove 3, adsorb it through the electric-controlled magnet 8, and extend the two limit blocks 5 to the inside of the through hole on the manhole cover to fix the manhole cover. When grinding, the elastic pressure of the spring 12 between the hexagonal movable plate 11 and the hexagonal pressure plate 13 can be adjusted by rotating the screw 7, thereby changing the grinding pressure of the grinding roller 18 on the outer surface of the manhole cover. During the grinding process, when the grinding roller 18 encounters a larger protrusion, it will compress the spring 12 outward, thereby providing a buffer to prevent rigid impact from causing damage to the connection part. When grinding the outer surface of the manhole cover, the first motor 10 is started to drive the turntable 4 to rotate, thereby driving the manhole cover to rotate, and the second motor 16 is started to drive the grinding roller 18 to rotate, wherein the turntable 4 rotates clockwise and the grinding roller 18 rotates counterclockwise. The opposite rotation of the turntable 4 and the grinding roller 18 can increase the grinding force on the grinding surface. When the turntable 4 rotates, the mutual engagement of the retaining ring 20 and the annular groove 19 can support the turntable 4 to prevent the turntable 4 and the manhole cover placed thereon from generating a vertical downward force acting on the axial direction of the first motor 10 and damaging the first motor 10.

[0030] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An external cylindrical grinding device for manhole cover processing, comprising a base (1), characterized in that: Side openings (2) are provided on both sides of the base (1), a grinding groove (3) is provided on the top of the base (1), mounting frames (15) are provided inside the grinding groove (3) near the edges on both sides, grinding rollers (18) are rotatably connected between the top and bottom surfaces of the two mounting frames (15), brackets (17) are fixed on the tops of the two mounting frames (15), second motors (16) are fixed on the two brackets (17), and the output ends of the two second motors (16) are fixed to one end of the grinding roller (18) respectively.

2. The outer cylindrical grinding device for manhole cover processing according to claim 1 is characterized in that: An adjustment sleeve (6) is fixed to one inner wall of each of the two side openings (2), and a hexagonal movable plate (11) is slidably connected to the inner walls of the two adjustment sleeves (6) on the side close to and away from the base (1).

3. The outer cylindrical grinding device for manhole cover processing according to claim 2, characterized in that: One side of the two adjustment sleeves (6) is threadedly connected to a screw rod (7), and one end of the two screw rods (7) is rotatably connected to one side of the hexagonal movable plate (11).

4. The outer cylindrical grinding device for manhole cover processing according to claim 3 is characterized in that: A hexagonal pressure plate (13) is slidably connected to one side of the inner wall of the two adjustment sleeves (6) close to the base (1), a spring (12) is fixed to one side of the two hexagonal pressure plates (13), and one end of the two springs (12) is correspondingly fixed to the hexagonal movable plate (11).

5. The outer cylindrical grinding device for manhole cover processing according to claim 4, characterized in that: A hexagonal rod (14) is fixed to the other side of the two hexagonal pressure plates (13), the two hexagonal rods (14) extend to the inside of the grinding groove (3) respectively, and one end of the two hexagonal rods (14) is fixed to one side of the mounting frame (15) respectively.

6. The outer cylindrical grinding device for manhole cover processing according to claim 5, characterized in that: An inner cavity (9) is provided on the inner bottom surface of the grinding groove (3), a first motor (10) is fixed inside the inner cavity (9), an annular groove (19) is provided on the inner wall of the grinding groove (3), and a turntable (4) is arranged on the inner bottom surface of the grinding groove (3).

7. The outer cylindrical grinding device for manhole cover processing according to claim 6, characterized in that: The output end of the first motor (10) is fixed to the bottom of the turntable (4); a retaining ring (20) is fixed to the outer surface of the turntable (4) and is slidably engaged in the annular groove (19); an electric control magnet (8) is arranged inside the turntable (4); two limit blocks (5) are fixed to the top of the turntable (4); and an annular opening (21) is provided at the top of the turntable (4) near the edge of the outer surface.

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