CN108118593B

CN108118593B - Road grinding construction device

Info

Publication number: CN108118593B
Application number: CN201810099267.9A
Authority: CN
Inventors: 陈飞; 颜赫; 钟国武; 王火明; 徐霈; 陈天泉; 王祺; 唐智伦; 徐周聪
Original assignee: China Merchants Chongqing Communications Research and Design Institute Co Ltd
Current assignee: China Merchants Chongqing Communications Research and Design Institute Co Ltd
Priority date: 2018-01-31
Filing date: 2018-01-31
Publication date: 2023-05-09
Anticipated expiration: 2038-01-31
Also published as: CN108118593A

Abstract

The invention belongs to the technical field of road construction equipment, and particularly discloses a road leveling construction device which comprises a shell and a supporting part arranged on the bottom surface of the shell, wherein the shell is a cylinder body with a closed upper end surface and an open lower end surface, a polishing mechanism fixedly connected to the upper end surface of the shell through a bearing is arranged in the middle of an inner cavity of the shell, the upper end of the polishing mechanism is connected with a driving mechanism, the middle of the polishing mechanism is connected with a supporting lifting mechanism, and a dust collection device is arranged on the upper side of the side surface of the shell; dustproof cloth is connected between every two adjacent supporting parts. The invention can realize the layer-by-layer grinding of the convex-concave uneven parts on the pavement from top to bottom, and can treat larger convex uneven parts on the pavement, in particular to the flatness treatment of semi-rigid base layers, cement concrete pavement slabs and the like. The device has the advantages of high working efficiency, large working range, reasonable and smart structural design, high adjustment accuracy and high application value; the device has better dustproof efficiency and dustproof effect, can reduce environmental pollution and improve construction operation environment.

Description

Road grinding construction device

Technical Field

The invention belongs to the technical field of road construction equipment, and particularly relates to a road leveling construction device.

Background

In road engineering construction, in order to improve the overall flatness and driving comfort of a road surface, a local uneven area caused by construction flaws is often subjected to leveling treatment, such as a concrete bridge deck, a semi-rigid base layer surface, a concrete pavement slab and the like. However, due to the localized sanding, in practice most of the material removal by sanding tends not to be significant, and therefore conventional sanding machines tend to be unsuitable for reasons related to equipment costs, ease of use, and the like.

In the patent application publication number CN105133475B, a dust-proof road construction apparatus is disclosed, which adopts a screw-type right pressure generated when a motor is driven to rotate and a simultaneous or synchronous rotation, so that a polishing head can be driven to perform synchronous polishing rotation and left-right translation, and only one motor is used, thus reducing equipment cost in combination with the case of a locally protruded polishing amount; the dust collection device is used for dust collection in the polishing range, so that a relatively efficient dust prevention effect is realized; the leg members with the height automatically adjusted by the motor are further arranged, the leveling instrument is matched, the levelness of the whole equipment can be rapidly adjusted on site according to the actual outline of the road surface, and the adjustment is accurate, so that the flatness of the polished workpiece can be guaranteed. But it has the following disadvantages: once the polishing head has larger convex blocks in the polishing range, the polishing head can be prevented from advancing, and the leg members at one end can be separated from the road surface to be tilted upwards, so that the local polishing work of the road surface can not be finished finally.

Disclosure of Invention

The invention aims to provide a road leveling construction device which can level bumps on a road surface layer by layer from top to bottom, can treat larger protruding objects on the road surface and has a larger working treatment range.

In order to achieve the above purpose, the basic scheme of the invention is as follows: the utility model provides a road grinds flat construction device, includes lower extreme open-ended shell, and the shell lower extreme is equipped with supporting part, is equipped with grinding machanism in the shell, grinding machanism is including rotating the sleeve and the drive of connecting on the shell sleeve pivoted drive part, be equipped with the bull stick in the sleeve, be equipped with the lug on the bull stick lateral wall, be equipped with the bar hole that supplies the lug to slide from top to bottom on the sleeve lateral wall, fixedly connected with elastic component on the bull stick, elastic component upper end fixed connection is on the sleeve, the bull stick is located fixedly connected with annular lasso on the lateral wall of sleeve below, be equipped with annular cavity in the annular lasso, set up the annular groove with annular cavity intercommunication on the lateral wall of annular lasso, sliding connection has a plurality of fixture blocks in the annular cavity, fixedly connected with horizontally arranged's bracing piece on the fixture block, the bracing piece passes the annular groove, the one end fixedly connected with slider that keeps away from the fixture block has been seted up on the inner wall of shell and supplies the slider to slide from top to bottom, be equipped with the permanent magnet in the slider, the magnetic pole of one side that is close to the first electromagnet is opposite with the magnetic pole of the first electromagnet on the bull stick, the lower extreme fixedly connected with of bull stick is used for polishing.

The working principle of the basic scheme is as follows: when the device is used, the device is firstly placed on the ground to be polished, and then the first electromagnet is electrified to generate magnetism. Because the permanent magnet with the magnetic pole opposite to that of the first electromagnet is arranged in the sliding block, the first electromagnet generates attraction force to the permanent magnet after magnetism, and the sliding block is connected in the sliding groove in a sliding way, so that the sliding block can slide downwards along the sliding groove. Because the sliding block is fixedly connected with the supporting rod, the sliding block can drive the supporting rod to move downwards when sliding downwards; the supporting rod penetrates through the annular groove and a clamping block is arranged at one end, close to the rotating rod, of the supporting rod, the clamping block is slidably connected in the annular cavity in the annular ring, and therefore downward force can be applied to the annular ring through the annular groove when the supporting rod moves downwards. Meanwhile, the annular ring is fixedly connected to the rotating rod, and the rotating rod is connected in the strip-shaped hole on the sleeve in a sliding mode through the lug, so that the annular ring can drive the rotating rod to move downwards when being subjected to downward force, and the lug slides downwards in the strip-shaped hole. Simultaneously, because the elastic piece is fixedly connected on the rotating rod, the elastic piece can be elastically deformed when the rotating rod moves downwards. The lower surface of the sanding head at the lower end of the rotating rod stops descending when it contacts a protrusion on the ground. Then the driving part is started, and the driving part drives the sleeve to rotate. Because lug sliding connection on the bull stick is downthehole at the bar, therefore when the sleeve rotated, the bar hole can be to the lug force drive lug motion together, drive the bull stick promptly and rotate. The rotating rod rotates to drive the polishing head to rotate, so that the polishing head polishes the protrusions on the ground. Because be equipped with annular cavity in the annular lasso, be equipped with the annular groove with annular cavity intercommunication on the lateral wall of annular lasso, and the fixture block sliding connection on the bracing piece is in annular cavity, so when the bull stick rotated, the fixture block can slide in annular cavity. The clamping block is stable and motionless, and relative motion is generated between the clamping block and the rotating rod under the rotating action of the rotating rod, so that the rotating rod has no influence on the supporting rod. When the polishing head polishes the protrusion, the first electromagnet can continuously apply magnetic force to the permanent magnet, namely, the polishing head can be subjected to downward force, so that after the polishing head polishes away one layer of protrusion, the polishing head can continuously descend, and the polishing head continuously polishes the next layer of protrusion. When the protrusion is polished, the driving part is stopped, and the first electromagnet is powered off. Because the elastic piece is in the elastic deformation state, the elastic piece can have elastic restoring force on the rotating rod, and accordingly the elastic piece can drive the rotating rod to move upwards until the supporting rod and the protruding block are reset.

The beneficial effect of this basic scheme lies in: according to the invention, the protruding blocks are arranged on the side walls of the rotating rods, and the strip-shaped holes for the protruding blocks to move up and down are arranged at the positions of the sleeves corresponding to the protruding blocks, so that when the sleeves rotate, the side edges of the strip-shaped holes can push the stop blocks to move, and the rotating rods and the polishing heads are pushed to rotate. Meanwhile, by arranging the annular ring, the support rod, the permanent magnet and the first electromagnet, when the first electromagnet drives the support rod to move, the support rod drives the annular ring to move, and therefore the annular ring drives the support rod and the polishing head to move downwards; when the rotating rod rotates, the annular ring rotates along with the rotating rod, the annular groove rotates, the supporting rod does not rotate, and the clamping block on the supporting rod is stably positioned in the annular cavity. The invention has simple structure, reasonable and ingenious design, high cost performance and high application value. The scheme drives the polishing head to move from top to bottom, the driving part drives the polishing head to rotate, the process of polishing the convex blocks layer by layer on the road surface from top to bottom is realized, larger convex objects on the road surface can be processed, the working processing range of the device is larger, and the application value is high.

Further, a cavity is arranged in the rotating rod, a water delivery pipe is arranged in the cavity, the upper end of the water delivery pipe penetrates through the sleeve and is connected with a water supply source, water spraying ports are uniformly distributed on the side wall of the polishing head, and a water delivery pipe communicated with the water spraying ports and the water delivery pipe is arranged inside the polishing head. The water spraying device has the advantages that when the protrusions are polished, the water is sprayed out from the water spraying port through the water conveying pipe and the water conveying pipe, centrifugal force generated by rotation of the polishing head to the water is utilized, the water is promoted to rush out of the water spraying port, dust generated in the polishing process is just deposited, flying dust is greatly reduced, a dustproof effect is achieved, the working environment is protected, and the health of workers is guaranteed.

Further, the supporting part comprises a plurality of fixed columns and adjusting columns sleeved on the outer sides of the fixed columns, the fixed columns are connected with adjusting ring bodies in a threaded mode, protruding edge strips are arranged at the lower ends of the adjusting columns along the periphery of the adjusting column, and rotating grooves matched with the lower ends of the adjusting columns and the edge strips are formed in the adjusting ring bodies. The adjusting device has the advantages that the adjusting ring body can be rotated to drive the adjusting column to ascend or descend, the adjusting column can move in the vertical direction certainly when rotating a little, the adjusting precision is high, and the adaptability of the device is improved.

Further, dustproof cloth is connected between every two adjacent fixed columns, the upper side and the lower side of the dustproof cloth are respectively connected to the adjusting column and the fixed columns, and a dust collection device is arranged in the shell. The polishing machine has the advantages that dust generated by polishing can be prevented from flying everywhere, dust is well treated, dust pollution is reduced, working environment is protected, and the health of workers is guaranteed.

Further, a second electromagnet with the same magnetic pole as the upper side of the permanent magnet is arranged in the shell at the top of the chute, and a current transmitter is arranged in the energizing circuit of the first electromagnet and the second electromagnet. The polishing head has the advantages that after the second electromagnet is electrified, magnetic repulsive force which is the same as that of the permanent magnet can be generated, namely, the permanent magnet is driven to move away from the second electromagnet towards the direction of the first electromagnet, so that the downward movement operation of the polishing head is guaranteed, and the polishing efficiency is improved. The current transducer can provide current which changes linearly, the magnetic force of the electromagnet is in direct proportion to the magnitude of the current, and the magnetic force of the first electromagnet and the magnetic force of the second electromagnet can change linearly by adopting the current transducer; when the permanent magnet descends, the elastic piece generates elastic deformation to generate pulling force for preventing the supporting rod from moving downwards, the pulling force is increased in a linear relation along with the downward movement of the supporting rod, at the moment, the current transducer is adopted to provide increasing current, so that the magnetic force of the first electromagnet and the magnetic force of the second electromagnet are increased linearly, the pulling force is counteracted, the supporting rod is favorably maintained to descend at a uniform speed, the polishing effect is improved, and the stability of the device is improved.

Further, the upper end face of the shell is provided with a level meter. The device has the advantages that the levelness of the device is convenient to accurately adjust, and the polishing effect of the device is improved.

Further, graduations are arranged on the fixed columns along the height direction of the fixed columns. The visual digital adjusting device has the advantages that the adjusting distance of the supporting part is visual and digital, and the adjusting action is more intuitively carried out, so that the convenience is provided for adjustment.

Further, the drive part comprises a drive motor arranged on the top wall of the shell, an output shaft of the drive motor penetrates through the top wall of the shell, is positioned inside the shell and is parallel to the sleeve, and the output shaft of the drive motor is connected with the connecting sleeve through a gear pair. The device has the advantages of simple structure and convenience for subsequent maintenance work.

Further, the cross section of the adjusting ring body is regular hexagon. The adjustable ring body has the advantages that the adjustable ring body can be adjusted through the wrench, and the operability of the device is improved.

Further, a transparent observation window is arranged at the lower part of the side surface of the shell corresponding to the polishing head. The polishing head has the advantages that the position and the operation condition of the polishing head are convenient to observe.

Drawings

FIG. 1 is a schematic view of an embodiment of a road leveling construction equipment according to the present invention;

FIG. 2 is a schematic view of the structure of section A-A of FIG. 1;

FIG. 3 is a schematic view of the structure of section B-B of FIG. 1;

FIG. 4 is a schematic view of the structure of the support portion;

fig. 5 is a schematic view of the structure of the section C-C in fig. 4.

Detailed Description

The invention is described in further detail below by way of specific embodiments:

reference numerals illustrate: the dust collector comprises a shell 1, a supporting part 2, a ball bearing 3, a dust collection device 4, a sleeve 5, a spring 6, a rotating rod 7, a protruding block 8, a strip-shaped hole 9, a polishing head 10, a water spray opening 11, a water supply pipe 12, a water supply pipe 13, a driving motor 14, a gear pair 15, an annular ring 16, a supporting rod 17, a clamping block 18, an annular groove 19, a sliding block 20, a sliding groove 21, a permanent magnet 22, a first electromagnet 23, a base 24, a fixed column 25, an adjusting column 26, an internal thread 27, an adjusting ring 28, an external thread 29, a rim strip 30, a rotating groove 31, a dust-proof cloth 32, a connecting piece 33, an observation window 34, a second electromagnet 35, a level gauge 36 and scales 37.

As shown in fig. 1, the road leveling construction equipment comprises a housing 1, namely a supporting part 2 which is fixedly arranged at the lower end of the housing 1 at equal intervals, and a cylinder body with an opening at the lower end and not closed at the upper end of the housing 1. The supporting part 2 comprises at least two fixed columns 25 which are fixedly arranged at the lower end of the shell 1 at equal intervals, in the embodiment, four fixed columns 25 are arranged, the lower ends of the four fixed columns 25 are fixedly connected with a base 24 through connecting pieces 33, and the fixed columns 25 are positioned in the middle of the base 24. As shown in fig. 4 and 5, an external thread 29 is provided on the outer surface of the fixed column 25, an adjusting ring 28 is sleeved on the fixed column 25, an internal thread 27 adapted to the external thread 29 is provided on the inner wall of the adjusting ring 28, and the adjusting ring 28 is in threaded connection with the fixed column 25. In this embodiment, the cross section of the adjusting ring 28 is regular hexagon, and the adjusting ring 28 can be adjusted by a wrench, so that the operation of the device is simplified. The fixed column 25 is sleeved with an adjusting column 26, the upper end of the adjusting column 26 is fixedly connected to the lower end of the shell 1, the lower end of the adjusting column 26 is provided with an outwards protruding edge strip 30 along the periphery of the adjusting column, namely, the lower end of the adjusting column 26 and the cross section structure of the edge strip 30 are L-shaped, and the T-shaped or L-shaped related structures in the embodiment can meet the installation requirements of corresponding parts, namely, the adjusting column 26 can support the relative rotation relation of the two connecting parties and can synchronously move up and down. The lower end of the adjusting ring 28 is rotatably connected in the rotating groove 31, and the rotating groove 31 is matched with the lower end of the adjusting column 26 and the edge strip 30. Every two adjacent fixed columns 25 are connected with dustproof cloth 32, and the upper and lower sides of the dustproof cloth 32 are respectively connected to the adjusting column 26 and the fixed columns 25. In order to more intuitively perform the adjustment operation of the support 2, the fixing column 25 is provided with graduations 37 along the height direction thereof. The distance adjustment of the support part 2 can be visualized and digitized, and convenience is provided for adjustment.

The side wall of the upper part of the shell 1 is provided with a dust collection device 4, and a dust collection opening of the dust collection device 4 is positioned in the shell 1. The shell 1 is internally provided with a polishing mechanism, the polishing mechanism comprises a sleeve 5, and the sleeve 5 is a cylinder body with an upper end closed and a lower end opened. The side wall of the upper end of the sleeve 5 is fixedly connected with a ball bearing 3, and the outer ring of the ball bearing 3 is fixedly connected to the top wall of the shell 1. The top wall of the shell 1 is fixedly connected with a driving motor 14, an output shaft of the driving motor 14 penetrates through the top wall of the shell 1, is located inside the shell 1 and is parallel to the sleeve 5, the output shaft of the driving motor 14 is connected with the connecting sleeve 5 through a gear pair 15, specifically, a first gear is fixedly connected to the output shaft of the driving motor 14, a second gear is sleeved on the side wall of the sleeve 5, and the first gear and the second gear are meshed with each other. In order to accurately adjust the levelness of the device, the upper end surface of the housing 1 is provided with a level gauge 36. The device is provided with a horizontal adjustment reference, so that the levelness of the device can be accurately adjusted, and an excellent foundation is laid for the work of the device.

As shown in fig. 2 and 3, a rotating rod 7 is arranged in the sleeve 5, the rotating rod 7 is a cylindrical rod, and an elastic piece, which is a spring 6 in this embodiment, is connected between the upper end of the rotating rod 7 and the top wall of the sleeve 5. The lower end of the spring 6 is fixedly connected to the top wall of the rotating rod 7, and the upper end of the spring 6 is fixedly connected to the top wall of the sleeve 5. The lateral wall on bull stick 7 upper portion is last fixedly connected with outwards bellied lug 8, lug 8 sliding connection is in the bar hole 9 of sleeve 5, and the outer end of lug 8 is located sleeve 5 outward, and under the natural state, bull stick 7 makes lug 8 be located bar hole 9's upper end under the elasticity effect of spring 6. The bull stick 7 is located fixedly connected with annular lasso 16 on the lateral wall of sleeve 5 below, has seted up annular cavity in the annular lasso 16, in the annular groove 19 of seting up on the lateral wall of annular lasso 16 with annular cavity intercommunication, sliding connection has a plurality of sliders 20 in the annular cavity, slider 20 quantity is four in this embodiment, and the contained angle that two adjacent sliders 20 and the axle center of bull stick 7 formed is 90 degrees. The volume of the clamping block 18 is larger than the area of the annular groove 19, so that the clamping block 18 cannot be separated from the annular groove 19. Each clamping block 18 is fixedly connected with a supporting rod 17 which is horizontally arranged, the supporting rods 17 are mutually perpendicular to the clamping blocks 18, and two opposite supporting rods 17 are positioned on the same horizontal line. One end of the supporting rod 17, which is far away from the clamping block 18, is fixedly connected with a sliding block 20, the inner wall of the shell 1 is provided with a sliding groove 21 for the sliding block 20 to slide up and down, and the sliding block 20 is in sliding connection in the sliding groove 21. The upper end fixedly connected with second electro-magnet 35 of spout 21, the lower extreme fixedly connected with first electro-magnet 23 of spout 21, fixedly connected with permanent magnet 22 in slider 20, the magnetism of permanent magnet 22 and first electro-magnet 23 is the same, and the magnetism of permanent magnet 22 and second electro-magnet 35 is opposite, is equipped with the current transducer in the circular telegram circuit of first electro-magnet 23 and second electro-magnet 35, is favorable to maintaining the uniform velocity decline of bracing piece 17, improves the polishing effect, improves the stability of device. In a natural state, the rotating rod 7 enables the sliding block 20 to be positioned at the top end of the sliding groove 21 under the action of the elastic force of the spring 6. The lower extreme fixedly connected with of bull stick 7 polishes head 10, and the lower surface of polishing head 10 is the frosting, and in this embodiment, the length of spout 21, the length of bar hole 9 all equals the biggest lift stroke of polishing head 10. A plurality of water spray ports 11 are circumferentially and uniformly distributed on the side wall of the polishing head 10, a cavity is formed in the rotary rod 7, a water delivery pipe 13 is accommodated in the cavity, the upper end of the water delivery pipe 13 penetrates through the top wall of the sleeve 5 and is positioned outside the sleeve 5, the upper end of the water delivery pipe 13 is connected with a water supply source, the lower end of the water delivery pipe 13 is positioned in the polishing head 10, and a water delivery pipe 12 communicated with the water spray ports 11 and the lower end of the water delivery pipe 13 is arranged in the polishing head 10. The lower side wall of the shell 1 is provided with a transparent observation window 34 corresponding to the polishing head 10, and the observation window 34 is positioned between two adjacent sliding grooves 21, so that the position and the operation condition of the polishing head 10 can be observed conveniently during working.

In practice, the base 24 at the lower end of the fixing post 25 is first placed on the road surface to be ground locally. The support 2 is then adjusted according to the level reference of the level 36 until the level 36 shows level. The specific adjusting process of the supporting part 2 is as follows: the outer side surface of the adjusting ring 28 is clamped by a wrench and then screwed, so that the adjusting ring 28 ascends or descends, and the adjusting column 26 is driven to ascend or descend. The first electromagnet 23 and the second electromagnet 35 are then energized, the current transducer provides a linearly varying current, and the permanent magnet 22 within the slider 20 is acted upon by the magnetic forces of the first electromagnet 23 and the second electromagnet 35. The first electromagnet 23 generates magnetic attraction force to the permanent magnet 22, and the second electromagnet 35 generates magnetic repulsion force to the permanent magnet 22, wherein the magnetic attraction force and the magnetic repulsion force are linearly changed under the action of the current transducer, and therefore the sliding block 20 drives the supporting rod 17 to vertically move downwards. The supporting rod 17 drives the rotating rod 7 and the polishing head 10 to move downwards through the annular ring 16, the protruding block 8 moves downwards in the strip-shaped hole 9, and the spring 6 is stretched continuously. When the lower surface of the sanding head 10 contacts the top of the protrusion on the road surface, the sanding head 10 stops descending. The driving motor 14 is then started to turn on the water supply source. The driving motor 14 drives the sleeve 5 to rotate through the first gear and the second gear, and the strip-shaped hole 9 on the sleeve 5 pushes the lug 8 to rotate, so that the lug 8 drives the rotating rod 7 and the polishing head 10 to rotate. The sanding surface of the lower surface of the sanding head 10 performs a sanding process on the protrusions of the ground. When the sliding block 20 moves to the bottom of the sliding groove 21, the protruding block 8 is positioned at the lower end of the strip-shaped hole 9, the lower surface of the polishing head 10 is just attached to a horizontal road surface, and protrusions on the road surface are well polished. When polishing the protrusions, the water supply source delivers water to the water jet 11 through the water delivery pipe 13 and the water delivery pipe 12, and the water is sprayed from the water jet 11. Meanwhile, the polishing head 10 rotates to enable the water in the water spraying port 11 to generate centrifugal force, so that water is promoted to be sprayed out of the water spraying port 11, dust in the polishing process is precipitated by sprayed water, the dust can be blocked by the dust-proof cloth 32 in a range between the four fixing columns 25, flying dust is greatly reduced, and a small amount of flying dust can be absorbed by the dust-absorbing device 4 at the upper part of the inner shell 1. After the protrusions of the road surface are ground, the water supply source is turned off, the driving motor 14 and the dust suction device 4 are stopped, and thus the grinding head 10 stops rotating. Then the first electromagnet 23 and the second electromagnet 35 are powered off, the rotating rod 7 and the polishing head 10 are lifted and reset under the action of the spring 6, the protruding block 8 is positioned at the upper end of the strip-shaped hole 9, and the sliding block 20 is positioned at the upper end of the sliding groove 21.

The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a road grinds flat construction device, includes lower extreme open-ended shell, and the shell lower extreme is equipped with supporting part, is equipped with grinding machanism in the shell, its characterized in that: the polishing mechanism comprises a sleeve and a driving part, the sleeve is rotatably connected to the shell, the driving part drives the sleeve to rotate, the driving part comprises a driving motor arranged on the top wall of the shell, an output shaft of the driving motor penetrates through the top wall of the shell and is positioned in the shell and parallel to the sleeve, and the output shaft of the driving motor is connected with the connecting sleeve through a gear pair; the sleeve is internally provided with a rotating rod, the side wall of the rotating rod is provided with a convex block, the side wall of the sleeve is provided with a strip-shaped hole for the convex block to slide up and down, and the rotating rod is positioned at the upper end of the strip-shaped hole under the elastic action of the elastic piece in a natural state; the elastic piece is fixedly connected to the rotating rod, the upper end of the elastic piece is fixedly connected to the sleeve, the side wall of the rotating rod below the sleeve is fixedly connected with the annular ring, an annular cavity is arranged in the annular ring, an annular groove communicated with the annular cavity is formed in the side wall of the annular ring, a plurality of clamping blocks are connected in the annular cavity in a sliding mode, and the clamping blocks cannot be separated from the annular groove due to the fact that the volume of the clamping blocks is larger than the area of the annular groove; the clamping block is fixedly connected with a supporting rod which is horizontally arranged, the supporting rod penetrates through the annular groove, one end, away from the clamping block, of the supporting rod is fixedly connected with a sliding block, a sliding groove for the sliding block to slide up and down is formed in the inner wall of the shell, a first electromagnet is arranged at the lower end of the sliding groove, a permanent magnet is arranged in the sliding block, the magnetic pole of one side, close to the first electromagnet, of the permanent magnet is opposite to that of the first electromagnet, and the lower end of the rotating rod is fixedly connected with a polishing head for polishing.

2. The road leveling construction equipment according to claim 1, wherein: the cavity is arranged in the rotating rod, the water delivery pipe is arranged in the cavity, the upper end of the water delivery pipe penetrates through the sleeve and is connected with a water supply source, water spraying holes are uniformly distributed on the side wall of the polishing head, and the water delivery pipe communicated with the water spraying holes and the water delivery pipe is arranged inside the polishing head.

3. The road leveling construction equipment according to claim 1, wherein: the supporting part comprises a plurality of fixed columns and adjusting columns sleeved on the outer sides of the fixed columns, the fixed columns are connected with adjusting ring bodies in a threaded mode, protruding edge strips are arranged at the lower ends of the adjusting columns along the periphery of the lower ends of the adjusting columns, and rotating grooves matched with the lower ends of the adjusting columns and the edge strips are formed in the adjusting ring bodies.

4. The road leveling construction equipment according to claim 2, wherein: every two adjacent fixed columns are connected with dustproof cloth, the upper and lower sides of the dustproof cloth are respectively connected to the adjusting column and the fixed column, and a dust collection device is arranged in the shell.

5. The road leveling construction equipment according to claim 2, wherein: the shell at the top of the chute is internally provided with a second electromagnet with the same magnetic pole as the upper side of the permanent magnet, and current transmitters are arranged in the energizing circuits of the first electromagnet and the second electromagnet.

6. The road leveling construction equipment according to claim 2, wherein: the upper end face of the shell is provided with a level meter.

7. A road leveling construction equipment as set forth in claim 3 wherein: the fixed column is provided with scales along the height direction.

8. A road leveling construction equipment as set forth in claim 3 wherein: the cross section of the adjusting ring body is regular hexagon.

9. The road leveling construction equipment according to claim 4, wherein: and a transparent observation window is arranged at the lower part of the side surface of the shell corresponding to the polishing head.