CN118664414A - Stable polishing device for roller grinding wheel - Google Patents

Abstract

The present invention relates to a stable grinding device for a roller wheel of a road roller in the field of grinding equipment. Through a sliding frame and a clamping roller assembly installed at both ends of the sliding frame, when grinding the roller body, the walking wheel and the abutting wheel formed in a triangular distribution in the clamping roller assembly are utilized, so that the grinding device is stably clamped on the roller body and makes arc-shaped reciprocating motion along the circumferential surface of the roller body. At the same time, the grinding roller is started to abut against the roller body to grind it, so that the grinding has good stability. In addition, an infrared distance sensor is used to monitor and control the height of the grinding device, so that in the process of the roller driving the roller body to roll horizontally to change the grinding surface, the range of the arc-shaped reciprocating motion of the grinding device is automatically adjusted to adapt to the working progress of the roller, realize automatic grinding, overcome the problems of stability and cumbersome operation during manual grinding, and there is no need to disassemble the roller, so it is convenient for efficient on-site processing.

Description

A stable grinding device for roller wheel

Technical Field

The invention relates to a roller grinding device, in particular to a stable grinding device for a roller wheel applied in the field of grinding equipment.

Background Art

The roller wheel is under tremendous pressure and wear for a long time during the heavy road construction task, and damage is inevitable on the surface. In order to ensure its working efficiency and extend its service life, timely repair work is particularly important. Once damage is found on the surface of the roller wheel, it should be professionally filled immediately. The filling material must have excellent wear resistance and compression resistance. Subsequently, fine grinding is performed to ensure that the surface of the roller wheel is smooth and flat and restore its original working performance. Through this series of repair measures, the service life of the roller wheel can be effectively extended.

The existing grinding treatment method is to manually hold a grinder to grind and smooth the defects on the surface of the roller one by one, or use large-scale grinding equipment to grind the roller removed from the roller as a whole. Manual grinding has poor stability and is time-consuming and inefficient. Using a large grinding device for overall grinding requires the roller to be disassembled and transported to a specific factory, which is cumbersome and time-consuming. Therefore, an on-site efficient and stable grinding device is needed to perform on-site efficient grinding treatment of the roller.

Summary of the invention

In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing grinding method of the grinding wheel has poor stability, is time-consuming and cumbersome.

In order to solve the above problems, the present invention provides a stable grinding device for a roller wheel of a road roller, comprising a sliding frame, wherein the left and right ends of the sliding frame are provided with a right clamping block and a left clamping block which are symmetrically arranged, and a clamping roller assembly is installed inside the right clamping block and the left clamping block, and the clamping roller assembly comprises a traveling wheel abutting against the inner wall of the circumference of the roller body and two abutting wheels abutting against the outer wall of the circumference of the roller body, and the two abutting wheels and the traveling wheel are distributed in an isosceles triangle, and the traveling wheel is connected to a traveling motor through a first sliding transmission assembly;

The first sliding transmission assembly located on one side of the right clamping block includes a roller shaft fixedly connected to the travel wheel, the roller shaft sleeve is provided with a sliding sleeve slidably connected to the right clamping block, a prismatic cylinder is passed through the sliding sleeve, the prismatic cylinder is connected to the roller shaft through a transmission gear set, a prismatic shaft is slidably nested in the prismatic cylinder, the prismatic shaft is connected to the travel motor through a coupling, and the sliding sleeve is connected to a first radial screw rod assembly installed on the right clamping block that drives it to move in the radial direction of the roller body;

A grinding roller is provided between the abutting wheels, and the grinding roller is connected to a grinding motor through a second sliding transmission assembly. The second sliding transmission assembly has the same structure as the first sliding transmission assembly. A supporting roller is abutted against the inner side of the grinding roller, and the supporting roller is rotatably connected to a shielding cover, and a sliding rod is fixedly connected to the outer side of the shielding cover. The sliding rod passes through a radial moving frame, and a supporting spring abutting against the radial moving frame is provided on the sliding rod, and a radial adjusting screw rotatably connected to the sliding frame is threaded at the outer end thereof; a counterweight block is rotatably connected to the outer end of the counterweight block, and an infrared distance sensor is fixedly connected to the lower end of the counterweight block, and the walking motor, the grinding motor and the infrared distance sensor are all electrically connected to a controller.

In the above-mentioned stable grinding device for the roller wheel of a road roller, stable and efficient on-site reciprocating automatic grinding is achieved by means of the clamping roller assembly distributed in a triangular shape and the grinding rollers arranged between the abutting rollers.

As a further improvement of the present application, the shielding hood is an arc-shaped hood, a blowing pipe is fixedly connected to the upper portion of the shielding hood, and a dust collecting box is fixedly connected to the lower portion of the shielding hood, and a plurality of arc-shaped suction grooves equidistantly distributed are provided at the connection between the shielding hood and the dust collecting box, the blowing pipe is connected to the air extraction and supply device through the air inlet pipe, and the dust collecting box is connected to the air extraction and supply device through the air extraction pipe.

As a further improvement of the present application, the traveling wheel is a rubber wheel with a rough surface, and the abutting wheel is a metal wheel with a smooth surface.

As a further improvement of the present application, a splicing block longitudinally plugged into the left clamping block is provided on one side of the sliding frame close to the left clamping block. The splicing block is fixedly connected to the left clamping block, and the splicing block is threadedly connected to a longitudinal adjustment screw rod rotatably connected to the sliding frame.

As a further improvement of the present application, the inner walls of the right clamping block and the left clamping block are provided with radial through grooves for the sliding sleeve to engage and slide. The left side of the sliding sleeve is a circular tubular structure and the right side is a rectangular frame structure. The prismatic tube is rotatably connected to the right part of the sliding sleeve through a bearing.

As a further improvement of the present application, the center of gravity of the counterweight block is lower than the hinge position of the counterweight block and the right clamping block.

As a further improvement of the present application, support plates fixedly connected to the inner wall of the shielding cover are rotatably connected at both ends of the support roller, and a gap is provided between the support roller and the shielding cover for debris to slide down. Rubber sleeves abutting the end of the grinding roller are fixedly sleeved at both ends of the support roller, and bristles are fixedly connected to the part between the rubber sleeves at both ends.

As a further improvement of the present application, the air extraction and supply device includes a blower installed in the left clamping block, the blower is connected to the blowing pipe through the air inlet pipe, and is connected to the dust box through the air extraction pipe, a piston is nested in the blower, the piston extends to the outside of the blower and is fixedly connected to a clamping frame, the clamping frame is fixedly connected to an eccentric groove disk, the eccentric groove disk is connected to a plug-in shaft through a third sliding transmission assembly, the plug-in shaft is slidably plugged into the grinding roller, the third sliding transmission assembly has the same structure as the first sliding transmission assembly, and the eccentric groove disk is connected to the prismatic shaft of the third sliding transmission assembly.

As a further improvement of the present application, a prismatic cavity for inserting the plug-in shaft is provided at the central axis position of the grinding roller, and a one-way valve is installed at the connection points between the air inlet pipe and the air exhaust pipe and the blower cylinder.

To summarize, the present invention uses a sliding frame and a clamping roller assembly installed at both ends of the sliding frame. When grinding the roller body, the triangularly distributed walking wheels and abutment wheels are formed in the clamping roller assembly, so that the grinding device is stably clamped on the roller body and moves back and forth in an arc shape along the circumferential surface of the roller body. At the same time, the grinding roller is started to abut against the roller body to grind it, so that the grinding has good stability. In addition, the height of the grinding device is monitored and controlled by an infrared distance sensor, so that in the process of the roller driving the roller body to roll horizontally to change the grinding surface, the range of the arc reciprocating movement of the grinding device is automatically adjusted to adapt to the working progress of the roller, realize automatic grinding, overcome the problems of stability and cumbersome operation during manual grinding, and there is no need to disassemble the roller, which is convenient for efficient on-site processing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the assembly of the grinding device and the grinding wheel in the present application;

FIG2 is a schematic diagram of the three-dimensional structure of the present application;

FIG3 is a schematic diagram of the transverse cross-sectional structure of FIG1 at the position of the running wheels;

FIG4 is an enlarged schematic diagram of the structure at A in FIG3 ;

FIG5 is a schematic diagram of the longitudinal cross-sectional structure of FIG1;

FIG6 is an enlarged schematic diagram of the structure at B in FIG5 ;

FIG7 is a schematic diagram of the assembly structure of the right clamping block in the present application;

FIG8 is a schematic diagram of a grinding device in the present application performing reciprocating arc motion;

FIG9 is a schematic diagram of a transverse cross-sectional structure of FIG1 located at the middle of the shielding cover;

FIG10 is an enlarged schematic diagram of the structure at D in FIG9 ;

FIG11 is a schematic diagram of the movement of the jet airflow and the grinding debris in the present application;

FIG12 is an enlarged schematic diagram of the structure at C in FIG5 ;

FIG13 is a schematic diagram of the assembly structure of the left clamping block in the present application;

FIG14 is a schematic diagram of the inner structure of the shielding cover in the present application;

FIG. 15 is an enlarged structural schematic diagram of point E in FIG. 14 .

Description of the numbers in the figure:

1. Sliding frame; 101. Splicing block; 2. Right clamping block; 201. Radial through groove; 3. Left clamping block; 4. Clamping roller assembly; 5. Roller body; 6. Travel wheel; 7. Abutment wheel; 8. Roller shaft; 9. Sliding sleeve; 10. Transmission gear set; 11. Prism cylinder; 12. Prism shaft; 13. Travel motor; 14. First radial screw assembly; 15. Grinding roller; 1501. Prism cavity; 16. Second sliding transmission assembly; 17. Grinding motor; 18. Shielding cover; 1801 , suction groove; 19, support roller; 1901, rubber sleeve; 1902, bristles; 20, sliding rod; 21, radial moving frame; 22, supporting spring; 23, radial adjustment screw; 24, blowing pipe; 25, dust box; 26, air inlet pipe; 27, blower; 28, exhaust pipe; 29, piston; 30, clamping frame; 31, eccentric groove disk; 32, third sliding transmission assembly; 33, plug-in shaft; 34, longitudinal adjustment screw; 35, counterweight; 36, infrared distance sensor.

DETAILED DESCRIPTION

Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

The first implementation method:

Fig. 1-10 shows a stable grinding device for a roller wheel of a road roller, comprising a sliding frame 1, a right clamping block 2 and a left clamping block 3 symmetrically arranged at the left and right ends of the sliding frame 1, a clamping roller assembly 4 is installed inside the right clamping block 2 and the left clamping block 3, the clamping roller assembly 4 comprises a running wheel 6 abutting against the inner wall of the circumference of the roller body 5 and two abutting wheels 7 abutting against the outer wall of the circumference of the roller body 5, the two abutting wheels 7 and the running wheel 6 are distributed in an isosceles triangle, and the running wheel 6 is connected to a running motor 13 through a first sliding transmission assembly;

The first sliding transmission assembly located on one side of the right clamping block 2 includes a roller shaft 8 fixedly connected to the travel wheel 6, the roller shaft 8 is sleeved with a sliding sleeve 9 slidably connected to the right clamping block 2, a prism tube 11 runs through the sliding sleeve 9, the prism tube 11 is connected to the roller shaft 8 through a transmission gear set 10, a prism shaft 12 is slidably nested in the prism tube 11, the prism shaft 12 is connected to the travel motor 13 through a coupling, and the sliding sleeve 9 is connected to a first radial screw assembly 14 that drives it to move in the radial direction of the roller body 5 and is installed on the right clamping block 2;

A grinding roller 15 is provided between the abutting wheels 7, and the grinding roller 15 is connected to a grinding motor 17 through a second sliding transmission assembly 16. The second sliding transmission assembly 16 has the same structure as the first sliding transmission assembly. A supporting roller 19 is abutted on the inner side of the grinding roller 15, and the supporting roller 19 is rotatably connected to a shielding cover 18. A sliding rod 20 is fixedly connected to the outer side of the shielding cover 18. The sliding rod 20 passes through a radial moving frame 21, and a supporting spring 22 abutting the radial moving frame 21 is sleeved on the sliding rod 20, and a radial adjusting screw 23 rotatably connected to the sliding frame 1 is threadedly connected at its outer end; a counterweight block 35 is rotatably connected to the outer end of the counterweight block 35, and an infrared distance sensor 36 is fixedly connected to the lower end of the counterweight block 35, and the walking motor 13, the grinding motor 17 and the infrared distance sensor 36 are all electrically connected to a controller.

Specifically, when using, please refer to Figures 6 and 8, which include the following steps:

First, install the grinding device; install the grinding device on the roller body 5 of the roller, so that the travel wheels 6 of the two clamping roller assemblies 4 are respectively abutted against the circumferential inner walls of the ends of the roller body 5 on both sides, and then screw the first radial screw assembly 14, which drives the travel wheels 6 to move in the radial direction of the roller body 5 through the sliding sleeve 9 and the roller shaft 8, so that the triangularly distributed travel wheels 6 and the two abutting wheels 7 are clamped on the inner and outer sides of the ends of the roller body 5, thereby realizing the installation of the grinding device;

Second, adjust the position of the grinding roller 15; screw the radial adjustment screw 23, the radial moving frame 21 drives the shielding cover 18 to approach the grinding wheel body 5 through the sliding rod 20, and the shielding cover 18 pushes the grinding roller 15 to contact the surface of the grinding wheel body 5 through the supporting roller 19;

Third, reciprocating and grinding; the controller starts the travel motor 13, the grinding motor 17 and the infrared distance sensor 36, the travel motor 13 drives the prism cylinder 11 to rotate through the prism shaft 12, the prism cylinder 11 drives the roller shaft 8 to rotate through the transmission gear set 10, the roller shaft 8 drives the travel wheel 6 to rotate, and the travel wheel 6 reciprocates along the circumferential surface of the roller body 5. It should be noted that the infrared distance sensor 36 is used to monitor the vertical height of the grinding device from the ground in real time to prevent the grinding device from being too low and contacting the ground or too high and climbing over the upper part of the roller body 5 and colliding with the machine arm of the roller;

At the same time, the grinding motor 17 drives the grinding roller 15 to rotate through the second sliding transmission assembly 16 , and the grinding roller 15 moves back and forth to grind the circumferential surface of the grinding wheel body 5 .

Replace the grinding surface; start the roller, which drives the roller body 5 to roll back and forth horizontally, so that the grinding device fully grinds the outer surface of the entire roller body 5.

Compared with the traditional roller grinding device, the present invention uses a sliding frame 1 and a clamping roller assembly 4 installed at both ends of the sliding frame 1. When grinding the roller body 5, the walking wheel 6 connected to the walking motor 13 in the clamping roller assembly 4 and the two abutment wheels 7 forming a triangular distribution with the walking wheel 6 are used to cooperate, so that the grinding device is stably clamped on the roller body 5 and moves back and forth in an arc along the circumferential surface of the roller body 5. At the same time, the grinding roller 15 is started to abut on the roller body 5 to grind it, so that the grinding has better stability. In addition, the infrared distance sensor 36 is used to monitor and control the height of the grinding device, and the range of the arc reciprocating movement of the grinding device is automatically adjusted when the roller drives the roller body 5 to roll horizontally, so as to realize automatic grinding, overcome the problems of stability and cumbersome operation during manual grinding, and there is no need to disassemble the roller to facilitate efficient on-site processing.

In this embodiment, the traveling wheel 6 is a rubber wheel with a rough surface, the abutting wheel 7 is a metal wheel with a smooth surface, and the abutting wheel 7 is rotatably connected to the inner side walls of the right clamping block 2 and the left clamping block 3 .

Specifically, the clamping roller assembly 4 has a better clamping effect on the grinding wheel body 5 and facilitates the grinding device to move on the surface of the grinding wheel body 5.

Please refer to Figure 1. The sliding frame 1 is provided with a splicing block 101 longitudinally plugged therein on one side close to the left clamping block 3. The splicing block 101 is fixedly connected to the left clamping block 3. The splicing block 101 is threadedly connected to a longitudinal adjustment screw rod 34 rotatably connected to the sliding frame 1.

Specifically, by screwing the longitudinal adjustment screw 34 , the splicing block 101 drives the left clamping block 3 to move longitudinally, thereby changing the spacing between the right clamping block 2 and the left clamping block 3 , thereby facilitating the installation of the clamping roller assembly 4 .

Please refer to Figure 7. The inner walls of the right clamping block 2 and the left clamping block 3 are both provided with radial through grooves 201 for the sliding sleeve 9 to slide and engage. The left side of the sliding sleeve 9 is a circular tubular structure and the right side is a rectangular frame structure. The prismatic tube 11 is rotatably connected to the right part of the sliding sleeve 9 through a bearing.

Specifically, the sliding sleeve 9 has a better supporting effect on the roller shaft 8, and the sliding sleeve 9 has better stability when moving.

Please refer to FIG. 6 , the center of gravity of the counterweight block 35 is lower than the hinged position between the counterweight block 35 and the right clamping block 2 .

Specifically, the counterweight 35 is always vertically downward under the action of gravity, so that the infrared distance sensor 36 is always vertically downward to monitor the vertical height of the grinding device, thereby facilitating the control of the position of the grinding device on the grinding wheel body 5.

Second implementation method:

Figures 5 and 11-15 show a stable grinding device for a roller wheel of a road roller. On the basis of the first embodiment, the shielding cover 18 is an arc-shaped cover, a blow pipe 24 is fixedly connected to the upper portion of the shielding cover 18, and a dust box 25 is fixedly connected to the lower portion thereof. A plurality of arc-shaped suction grooves 1801 equidistantly distributed are provided at the connection between the shielding cover 18 and the dust box 25. The blow pipe 24 is connected to an air extraction and supply device via an air inlet pipe 26, and the dust box 25 is connected to the air extraction and supply device via an air extraction pipe 28.

Specifically, when the grinding roller 15 grinds the circumferential outer wall of the grinding wheel body 5, the air supply device injects air flow into the blow pipe 24, and the blow pipe 24 blows the grinding roller 15, so that the grinding debris slides down along the inner wall of the shielding cover 18. At the same time, the negative pressure generated in the dust box 25 due to the exhaust gas is collected by the suction groove 1801 to prevent the debris from polluting the working environment.

Please refer to Figures 14 and 15. Both ends of the support roller 19 are rotatably connected to support plates fixedly connected to the inner wall of the shielding cover 18. There is a gap between the support roller 19 and the shielding cover 18 for debris to slide down. Both ends of the support roller 19 are fixedly sleeved with rubber sleeves 1901 that abut against the end of the grinding roller 15, and the part between the rubber sleeves 1901 at both ends is fixedly connected with bristles 1902.

Specifically, when the grinding roller 15 rotates, it drives the supporting roller 19 to rotate, and the bristles 1902 on the supporting roller 19 simultaneously brush and clean the surface of the grinding roller 15 and the inner wall of the shielding cover 18, thereby reducing impurities adhering to the surface of the grinding roller 15 and increasing the debris cleaning speed.

Please refer to Figures 12 and 13. The air extraction and supply device includes a blower 27 installed in the left clamping block 3. The blower 27 is connected to the blowing pipe 24 through the air inlet pipe 26, and is connected to the dust box 25 through the air extraction pipe 28. A piston 29 is nested in the blower 27. The piston 29 extends to the outside of the blower 27 and is fixedly connected to a clamping frame 30. The clamping frame 30 is fixedly connected to an eccentric groove disk 31. The eccentric groove disk 31 is connected to a plug-in shaft 33 through a third sliding transmission assembly 32. The plug-in shaft 33 is slidably plugged with the grinding roller 15. The third sliding transmission assembly 32 has the same structure as the first sliding transmission assembly. The eccentric groove disk 31 is connected to the prismatic shaft 12 of the third sliding transmission assembly 32.

Specifically, the grinding motor 17 drives the grinding roller 15 to rotate through the second sliding transmission assembly 16, the grinding roller 15 drives the prismatic shaft 12 of the third sliding transmission assembly 32 to rotate through the plug-in shaft 33, the prismatic shaft 12 of the third sliding transmission assembly 32 drives the eccentric groove disk 31 to rotate, and the eccentric groove disk 31 drives the piston 29 to reciprocate in the blower 27 through the clamping frame 30 to realize air extraction and air supply.

Please refer to Figures 12 and 15. A prismatic cavity 1501 for inserting the plug-in shaft 33 is opened at the central axis position of the grinding roller 15, and a one-way valve is installed at the connection between the air inlet pipe 26 and the air exhaust pipe 28 and the blower cylinder 27.

Specifically, it is convenient to realize synchronous driving of the blower 27 and unidirectional flow of airflow, thereby improving the effects of debris blowing and negative pressure suction. In addition, the plug-in shaft 33 provides support for the grinding roller 15 to improve the stability of the grinding roller 15.

In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims (9)

1. A stable grinding device for a roller wheel of a road roller, characterized in that it comprises a sliding frame (1), wherein the left and right ends of the sliding frame (1) are provided with a right clamping block (2) and a left clamping block (3) which are symmetrically arranged, and a clamping roller assembly (4) is installed inside the right clamping block (2) and the left clamping block (3), and the clamping roller assembly (4) comprises a running wheel (6) abutting against the inner wall of the circumference of a roller body (5) and two abutting wheels (7) abutting against the outer wall of the circumference of the roller body (5), wherein the two abutting wheels (7) and the running wheel (6) are distributed in an isosceles triangle, and the running wheel (6) is connected to a running motor (13) through a first sliding transmission assembly; A first sliding transmission assembly located on one side of the right clamping block (2) comprises a roller shaft (8) fixedly connected to the travel wheel (6); the roller shaft (8) is sleeved with a sliding sleeve (9) slidably connected to the right clamping block (2); a prism tube (11) passes through the sliding sleeve (9); the prism tube (11) is connected to the roller shaft (8) via a transmission gear set (10); a prism shaft (12) is slidably embedded in the prism tube (11); the prism shaft (12) is connected to the travel motor (13) via a coupling; the sliding sleeve (9) is connected to a first radial screw assembly (14) mounted on the right clamping block (2) and drives it to move in the radial direction of the roller body (5); A grinding roller (15) is provided between the abutting wheels (7). The grinding roller (15) is connected to a grinding motor (17) via a second sliding transmission assembly (16). The second sliding transmission assembly (16) has the same structure as the first sliding transmission assembly. A supporting roller (19) is abutted on the inner side of the grinding roller (15). The supporting roller (19) is rotatably connected to a shielding cover (18). A sliding rod (20) is fixedly connected to the outer side of the shielding cover (18). A radial moving frame (21) passes through the sliding rod (20). A supporting spring (22) abutting against the radial moving frame (21) is sleeved on the sliding rod (20), and a radial adjustment screw (23) rotatably connected to the sliding frame (1) is threadedly connected at the outer end of the sliding rod (20). A counterweight (35) is rotatably connected to the outer end of the counterweight (35). An infrared distance sensor (36) is fixedly connected to the lower end of the counterweight (35). The travel motor (13), the grinding motor (17) and the infrared distance sensor (36) are all electrically connected to a controller. 2. A stable grinding device for a roller wheel of a road roller according to claim 1, characterized in that the shielding cover (18) is an arc-shaped cover, a blowing pipe (24) is fixedly connected to the upper part of the shielding cover (18), and a dust collecting box (25) is fixedly connected to the lower part thereof, and a plurality of arc-shaped suction grooves (1801) equidistantly distributed are provided at the connection between the shielding cover (18) and the dust collecting box (25), the blowing pipe (24) is connected to an air extraction device through an air inlet pipe (26), and the dust collecting box (25) is connected to the air extraction device through an air extraction pipe (28). 3. A stable grinding device for a roller wheel of a road roller according to claim 1, characterized in that the travel wheel (6) is a rubber wheel with a rough surface, and the abutment wheel (7) is a metal wheel with a smooth surface. 4. A stable grinding device for a roller wheel of a road roller according to claim 1, characterized in that a splicing block (101) longitudinally plugged into the left clamping block (3) is provided on the side of the sliding frame (1) close to the left clamping block (3), the splicing block (101) is fixedly connected to the left clamping block (3), and the splicing block (101) is threadedly connected to a longitudinal adjustment screw (34) rotatably connected to the sliding frame (1). 5. A stable grinding device for a roller wheel of a road roller according to claim 1, characterized in that the inner walls of the right clamping block (2) and the left clamping block (3) are provided with radial through grooves (201) for the sliding sleeve (9) to slide and engage, the left side of the sliding sleeve (9) is a circular tubular structure and the right side is a rectangular frame structure, and the prismatic cylinder (11) is rotatably connected to the right side of the sliding sleeve (9) through a bearing. 6. A stable grinding device for a roller wheel of a road roller according to claim 1, characterized in that the center of gravity of the counterweight block (35) is lower than the hinge position of the counterweight block (35) and the right clamping block (2). 7. A stable grinding device for a roller wheel of a road roller according to claim 2, characterized in that support plates fixedly connected to the inner wall of the shielding cover (18) are rotatably connected at both ends of the support roller (19), a gap is present between the support roller (19) and the shielding cover (18) for debris to slide down, and rubber sleeves (1901) abutting against the end of the grinding roller (15) are fixedly sleeved at both ends of the support roller (19), and bristles (1902) are fixedly connected to the portion between the rubber sleeves (1901) at both ends. 8. A stable grinding device for a roller wheel of a road roller according to claim 2, characterized in that the air extraction and supply device comprises a blower (27) installed in the left clamping block (3), the blower (27) is connected to the blowing pipe (24) through the air inlet pipe (26), and is connected to the dust collecting box (25) through the air extraction pipe (28), a piston (29) is nested in the blower (27), the piston (29) extends to the outside of the blower (27) and is fixedly connected to a clamping frame (30), the clamping frame (30) is fixedly connected to an eccentric groove disk (31), the eccentric groove disk (31) is connected to a plug-in shaft (33) through a third sliding transmission assembly (32), the plug-in shaft (33) is slidably plugged with the grinding roller (15), the third sliding transmission assembly (32) has the same structure as the first sliding transmission assembly, and the eccentric groove disk (31) is connected to the prismatic shaft (12) of the third sliding transmission assembly (32). 9. A stable grinding device for a roller wheel of a road roller according to claim 2, characterized in that a prismatic cavity (1501) for inserting a plug-in shaft (33) is provided at the central axis position of the grinding roller (15), and a one-way valve is installed at the connection points between the air inlet pipe (26) and the air exhaust pipe (28) and the blower cylinder (27).