CN114310532A

CN114310532A - Concrete precast slab top layer grinding device

Info

Publication number: CN114310532A
Application number: CN202210243880.XA
Authority: CN
Inventors: 张梅
Original assignee: Xuzhou Aoxing New Building Materials Co ltd
Current assignee: Xuzhou Aoxing New Building Materials Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-04-12
Anticipated expiration: 2042-03-14
Also published as: CN114310532B

Abstract

The invention relates to the field of surface processing of concrete precast slabs, in particular to a concrete precast slab surface layer polishing device, which comprises a fixing mechanism and a polishing mechanism, wherein an execution part in the device mainly plays the following roles on the basis of realizing the function of changing the position of a polishing part: the distance of limiting the single movement of the polishing part avoids the situation that the surface of the concrete precast slab is polished unevenly due to the fact that the nth polishing part and the n + th polishing part are overlapped, and the dust collection plate is arranged in a multi-azimuth mode, and has the advantages that: the dust collection range is enlarged, dust collection dead angles are reduced, dust generated by polishing is timely absorbed by the dust collector to the maximum extent, the probability of dust scattering to the working environment is reduced, the housing can form a closed space when contacting with the concrete prefabricated slab is completed, the dust is covered, the dust is further favorably absorbed by the dust collector in time, and the probability of dust scattering is reduced.

Description

Concrete precast slab top layer grinding device

Technical Field

The invention relates to the field of surface processing of concrete precast slabs, in particular to a polishing device for a surface layer of a concrete precast slab.

Background

The precast slab, namely the floor slab, refers to a concrete precast member which is produced, processed and formed in a precast yard and is directly transported to a construction site for installation.

The utility model discloses a Chinese utility model patent with publication number CN208409424U in the prior art discloses a floor polishing device for building construction, which controls the lifting height of a floor in the vertical direction through a screw rod lifting device, drives a polishing disc to rotate in the vertical direction through a rotating motor, polishes the floor surface through the polishing disc, and realizes the purpose of polishing the floor through mechanical operation, but is limited to the purpose, and the concrete reasons are that firstly, during the polishing of the floor receiving surface, the device can not ensure the overlapping condition between single polishing surfaces, and the overlapping of the single polishing surfaces can easily cause the excessive polishing of the partial area of the floor surface, namely the uneven polishing of the floor surface; secondly, although the device is provided with a dust collection system, the dust collection system is of a non-cover type or closed type structure, and the main body of the dust collection system is arranged on the back side of the polishing disc, so that the dust collection effect is poor, and dust collection dead corners exist.

Disclosure of Invention

In order to solve the technical problem, the invention provides a concrete precast slab surface layer polishing device which comprises a fixing mechanism and polishing mechanisms, wherein the fixing mechanism and the polishing mechanisms are both arranged on the ground, and the polishing mechanisms are symmetrically arranged in front and back of the fixing mechanism.

Fixed establishment include unable adjustment base, solid fixed splint, movable clamp plate, mounting panel and flexible side board, gu fixed base arranges subaerially in, gu fixed splint is installed to unable adjustment base's up end left end, gu fixed base's up end right-hand member slidable mounting has movable clamp plate, gu fixed base's right-hand member face is installed and is used for fixed electric putter's mounting panel, electric putter keeps away from the one end of mounting panel and links to each other with movable clamp plate's side, electric putter is symmetrical about arranging, be equipped with the flexible side board of arranging about being between the rear end of solid fixed splint and movable clamp plate, gu fixed splint and movable clamp plate's side all offer the rectangle that supplies to insert the piece and peg graft and lead to the groove, insert the piece and install the preceding terminal surface at flexible side board, the front end that inserts the piece is pegged graft and is had vertical round bar.

Because the concrete precast slab only carries out single-side polishing, the inserting block is inserted into the rectangular through groove in a manual mode, the vertical round rod is installed, the telescopic side plate is connected and fixed with the fixed clamping plate and the movable clamping plate, then the concrete precast slab is vertically placed on the fixed base in a manual mode and is positioned between the movable clamping plate and the fixed clamping plate, the concrete precast slab is closely attached to the right end face of the fixed clamping plate and the front end face of the telescopic side plate, the movable clamping plate is pushed leftwards through the electric push rod, the telescopic side plate synchronously contracts until the movable clamping plate slightly clamps the concrete precast slab, the concrete is fixed, then the surface of the concrete precast slab is polished through the polishing mechanism on the front side of the concrete precast slab, and after the polishing is finished, the polishing mechanism on the front side of the concrete precast slab returns to the original position, and then unloading the telescopic side plates manually, attaching the telescopic side plates to the polished surfaces of the concrete precast slabs according to the operation steps to fix the telescopic side plates between the movable clamping plates and the fixed clamping plates, and polishing the surfaces of the concrete precast slabs by a polishing mechanism at the rear sides of the concrete precast slabs.

The polishing mechanism comprises an execution part and a polishing part, the execution part comprises a U-shaped plate, a cylinder and a portal frame, the rectangle piece, the elastic sheet board, steel cable and a motor, subaerial is arranged in to the portal frame, the U-shaped plate that is inversion structure passes through cylinder and portal frame horizontal segment lower extreme sliding connection, the lower extreme at the U-shaped plate is installed to the portion of polishing, the back of the body side of portal frame horizontal segment is equipped with the rectangle piece from a left side to right equidistance, the elastic sheet board is installed to the lower extreme bilateral symmetry of rectangle piece, the cylinder is located between the elastic sheet board, cylindrical back of the body end links to each other with the one end of steel cable, the steel cable is located between elastic sheet board and the portal frame back of the body side, the other end of steel cable is walked around and is located positive right side of cylinder and rotates and install at portal frame dorsal part axostylus axostyle and link to each other with the pivot that rotates and install at portal frame dorsal part mutually for fixed steel cable, the pivot is located the right side of U-shaped plate, the back of pivot end links to each other with the output shaft of arranging subaerial motor in.

The concrete precast slab is vertically placed on the fixed base by a manual mode, the concrete precast slab is positioned between the movable clamping plate and the fixed clamping plate, the concrete precast slab is closely attached to the right end surface of the fixed clamping plate and the front end surface of the telescopic side plate, then the movable clamping plate is pushed leftwards by an electric push rod, the telescopic side plate synchronously contracts until the movable clamping plate slightly clamps the concrete precast slab, then a polishing part at the front side of the concrete precast slab starts to work, the polishing part polishes the surface of the concrete precast slab from bottom to top, after the polishing part finishes single polishing, a motor drives a rotating shaft to rotate, the rotating shaft synchronously winds a steel rope, a cylinder drives a U-shaped plate to do linear motion rightwards under the pulling of the steel rope, the U-shaped plate drives the polishing part to synchronously move rightwards, an elastic sheet plate contacted with the cylinder is extruded and bent, the elastic sheet contacted with the cylinder is separated from the cylinder and continuously moves rightwards, when the cylinder is located between the elastic sheet plates connected with the next rectangular block, the first motor stops working, then the polishing part works again, the surface of the concrete precast slab is polished from top to bottom, the position polished by the polishing part at this time is not overlapped with the position polished at the last time but is close to the position polished at the last time, and the whole polishing of the polishing surface of the concrete precast slab is completed according to the operation.

The polishing part comprises an air cylinder, a track plate, an electric sliding block, a dust collector, a housing, a polishing disc, a second motor, a dust collecting plate and a connecting pipe, the air cylinder is arranged at the lower end of the U-shaped plate, the electric sliding block is connected with the left end and the right end of the air cylinder through the track plate, the electric sliding block is arranged at the vertical section of the U-shaped plate, the dust collector is arranged at the pushing end of the air cylinder, the dust collector is slidably arranged between the track plates, a circular pipe used for fixing the housing is arranged at the rear end of the dust collector, a fixing mechanism is positioned between the housings, the polishing disc is arranged in the housings, the opposite end of the polishing disc is positioned outside the housings, the polishing disc is sleeved on the output shaft of the second motor, the second motor is arranged on the inner wall of the housings, the dust collecting plate which is circumferentially arranged along the polishing disc is distributed in the housings, the dust collecting plate is connected with one end of the connecting pipe, the other end of the connecting pipe is connected with the circular pipe, the connecting pipe penetrates through the housings, the air cylinder pushes the dust collector towards the concrete precast slab, the dust collector drives the housing to move synchronously, the housing drives the polishing disc and the second motor to move synchronously until the polishing disc contacts with the surface of the concrete precast slab, then the polishing disc is driven by the second motor to rotate, meanwhile, the track slab and the air cylinder move upwards synchronously through the electric slider, the polishing disc also moves upwards synchronously, the polishing disc polishes the surface of the concrete precast slab, after the polishing disc moves above the concrete precast slab, the polishing disc moves rightwards for a corresponding distance through the execution part, then the polishing disc moves downwards through the electric slider, the polishing disc polishes the surface of the concrete precast slab, the whole polishing of the polished surface of the concrete precast slab is completed according to the operation mode, and dust generated by polishing is synchronously absorbed and removed through the cooperation of the dust collector, the circular pipe, the connecting pipe and the dust collecting plate.

The first preferred technical scheme is as follows: rectangular block front end seted up the through-hole No. one, the opposite side of portal frame horizontal segment is opened and is equipped with No. two through-holes, the joint has the spacer pin that is used for fixed rectangular block between No. two through-holes that a through-hole and position correspond with it, the quantity of No. two through-holes on same portal frame is more than the quantity of a through-hole, take the threaded connection mode between the output shaft of polishing dish and No. two motors, the diameter size specification of the polishing dish that uses with the supporting portion of polishing has a variety, after changing the polishing dish of different diameter size, lift the spacer pin off through artifical mode, then remove rectangular block to relevant position department, distance between the adjacent rectangular block obtains the adjustment, install the spacer pin again immediately and fix rectangular block with fixed rectangular block

The preferred technical scheme is as follows: the middle part of housing be semicircle crown plate, the upper end joint of semicircle crown plate has upper shrouding, the lower extreme of semicircle crown plate has lower floor's shrouding through the bayonet lock joint, the connecting pipe run through semicircle crown plate, lift the bayonet lock off through artifical mode, then take off lower floor's shrouding and upper shrouding in proper order, carry out surface cleaning to upper shrouding, lower floor's shrouding and semicircle crown plate afterwards, avoid upper shrouding, lower floor's shrouding and semicircle crown plate three long-pending more dust that attaches in surface.

The preferred technical scheme is three: the non-annular surfaces of the opposite sides of the semicircular plates are provided with rectangular grooves, rolling shafts are rotatably arranged between the left inner side walls and the right inner side walls of the rectangular grooves through pin shafts, the rolling shafts are arranged at equal intervals from top to bottom, the distance between the axis of the rolling shafts and the non-annular surfaces of the opposite sides of the semicircular plates is smaller than the radius of the rolling shafts, and the rolling shafts can generate rolling friction with the surfaces of the concrete precast slabs, so that the movement resistance of the cover shell during the movement along the surfaces of the concrete precast slabs is reduced, and the extra abrasion of the surfaces of the concrete precast slabs is avoided.

The preferable technical scheme is four: the connecting pipe constitute by fixed pipe and linking pipe, the one end of fixed pipe is linked together with the pipe, the other end of fixed pipe runs through the housing and is located the housing, the one end of linking pipe links to each other through the screw-thread fit mode with the one end that fixed pipe is located the housing, the other end of linking pipe links to each other with the dust absorption board, on the basis that upper shrouding and lower floor's shrouding have been lifted off, lift the mill, link up pipe and dust absorption board wholly in proper order through the manual mode, then carry out comprehensive cleaning to the mill, dust absorption board, avoid the mill surface to deposit to attach more dust and reduce the effect of polishing of mill.

The preferred technical scheme is five: the opposite sides of the lower layer sealing plate are provided with brushes at equal intervals from left to right, and the brushes synchronously sweep along the surface of the concrete precast slab during the movement of the cover shell along the surface of the concrete precast slab so as to remove residual dust or particle impurities easy to clean.

The preferred technical scheme is six: the upper end joint of unable adjustment base have a chinese character 'shan' shaped plate, the chinese character 'shan' shaped plate is located the below of housing, the chinese character 'shan' shaped plate is used for accepting the dust or the granule impurity that drop or cleaned down by the brush, avoids dust or granule impurity long-pending attaching to ground and be not convenient for clean.

The preferred technical scheme is seven: the internal surface of housing all bond and have the sponge layer for the dust absorption, the dust that produces is polished in the adsorbable sponge layer, it makes the dust maximum just absorbed in the housing between dust catcher, the housing, very big reduction dust is scattered the probability to operational environment in four directions.

The preferred technical scheme is eight: the rubber layers are arranged at the opposite side ends of the fixed clamping plate and the movable clamping plate, and can increase the friction among the fixed clamping plate, the movable clamping plate and the concrete precast slab, so that the probability of the concrete precast slab deviation is reduced.

The invention has the following beneficial effects: 1. the invention designs a concrete precast slab surface layer polishing device, and an execution part in the device plays the following main roles on the basis of realizing the function of changing the position of a polishing part: the distance that the portion of polishing single removed is injectd, avoids concrete precast slab surface nth time to polish the position and the n + time to polish and takes place the stack between the position, and leads to concrete precast slab surface to present the inhomogeneous state of polishing.

2. The multi-azimuth arrangement of the dust collection plate has the advantages that: the dust collection range is enlarged, dust collection dead angles are reduced, dust generated by polishing is timely absorbed by the dust collector to the maximum extent, the probability of dust scattering to the working environment is reduced, the housing can form a closed space when contacting with the concrete prefabricated slab is completed, the dust is covered, the dust is further favorably absorbed by the dust collector in time, and the probability of dust scattering is reduced.

3. The invention is provided with two grinding mechanisms, and the telescopic side plates, the movable clamping plates and the fixed clamping plates are assembled and connected, which has the advantages that: between the concrete precast slab surface of polishing twice, need not to take off the concrete precast slab again and change the polished surface of concrete precast slab, then effectual workman's intensity of labour that has reduced has improved work efficiency, and flexible side board is used for further restricting the degree of freedom of concrete precast slab, avoids the concrete precast slab to take place the skew during unilateral is polished.

4. The housing and the connecting pipe are both of an assembled and spliced structure, so that the interior of the polishing part can be conveniently cleaned, and the polishing effect is prevented from being influenced by more impurities such as dust and the like accumulated in the polishing part.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention in a state where a precast concrete slab is clamped.

Fig. 2 is a plan view of fig. 1.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a schematic view of a three-dimensional cutoff structure of a portal frame, a rectangular block, an elastic sheet plate and a limit pin.

Fig. 5 is a schematic plan view of the chevron board.

Fig. 6 is a schematic perspective view of the chevron-shaped board and the fixing mechanism in a state where the concrete precast slab is clamped.

Fig. 7 is a perspective view of the fixing mechanism.

Fig. 8 is a perspective view of the U-shaped plate, the cylinder and the polishing portion.

Fig. 9 is a perspective view of the U-shaped plate and the cylinder removed from the structure of fig. 8.

Fig. 10 is a perspective view of the structure of fig. 9 rotated in the direction of the arrows.

Fig. 11 is a schematic perspective view of a part of the structure of fig. 10.

In the figure: 1. a fixing mechanism; 2. a polishing mechanism; 10. a fixed base; 100. a Chinese character 'shan' shaped plate; 11. fixing the clamping plate; 12. a movable splint; 13. mounting a plate; 14. an electric push rod; 15. a telescopic side plate; 16. inserting a block; 17. a vertical round bar; 20. an execution unit; 200. a U-shaped plate; 201. a cylinder; 202. a gantry; 203. a rectangular block; 204. an elastic sheet plate; 205. a steel cord; 206. a first motor; 207; a second through hole; 208. a spacing pin; 21. a polishing part; 210. a cylinder; 211. a track plate; 212. an electric slider; 213. a dust collector; 214. a housing; 215. grinding disc; 216. a second motor; 217. a dust collection plate; 218. a connecting pipe; 220. a semicircular ring plate; 221. an upper layer sealing plate; 222. a bayonet lock; 223. a lower layer sealing plate; 224. a roll axis; 225. a brush; 226. a sponge layer; 230. a fixed tube; 231. the tube is connected.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the concrete precast slab surface layer polishing device comprises a fixing mechanism 1 and a polishing mechanism 2, wherein the fixing mechanism 1 and the polishing mechanism 2 are both arranged on the ground, and the polishing mechanisms 2 are symmetrically arranged in front and back of the fixing mechanism 1.

Referring to fig. 1, 6 and 7, the fixing mechanism 1 includes a fixing base 10 and a fixing splint 11, movable clamp plate 12, mounting panel 13 and flexible side board 15, unable adjustment base 10 arranges subaerially in, unable adjustment base 10's up end left end installs solid fixed clamp plate 11, unable adjustment base 10's up end right-hand member slidable mounting has movable clamp plate 12, unable adjustment base 10's right-hand member is installed and is used for fixed electric putter 14 mounting panel 13, electric putter 14 keeps away from the one end of mounting panel 13 and links to each other with movable clamp plate 12's side, electric putter 14 is symmetrical about arranging, be equipped with the flexible side board 15 of arranging about being between the rear end of solid fixed clamp plate 11 and movable clamp plate 12, the rectangle that supplies to insert 16 grafting of piece leads to the groove all is seted up to gu fixed clamp plate 11 and movable clamp plate 12's side, insert 16 preceding terminal surface at flexible side board 15, the front end that inserts 16 is pegged graft and is had vertical round bar 17.

Because the concrete precast slab only carries out single-side grinding at a time, the inserting block 16 is required to be inserted into the rectangular through groove in a manual mode, the vertical round rod 17 is installed, the telescopic side plate 15 is connected and fixed with the fixed clamping plate 11 and the movable clamping plate 12, then the concrete precast slab is vertically placed on the fixed base 10 in a manual mode, the concrete precast slab is positioned between the movable clamping plate 12 and the fixed clamping plate 11, the concrete precast slab is clung to the right end face of the fixed clamping plate 11 and the front end face of the telescopic side plate 15, the movable clamping plate 12 is pushed leftwards through the electric push rod 14, the telescopic side plate 15 is synchronously contracted until the movable clamping plate 12 slightly clamps the concrete precast slab, the concrete precast slab is fixed, then the surface of the concrete precast slab is ground through the grinding mechanism 2 at the front side of the concrete precast slab, after grinding is finished, the grinding mechanism 2 at the front side of the concrete precast slab returns to the original position, then the telescopic side plate 15 is detached manually, the telescopic side plate 15 is attached to the ground surface of the concrete precast slab and fixed between the movable clamping plate 12 and the fixed clamping plate 11 according to the operation steps, and then the surface of the concrete precast slab is ground through the grinding mechanism 2 at the rear side of the concrete precast slab.

Be provided with two grinding machanism 2 and establish to assembly connection's useful part between flexible side board 15 and movable clamp plate 12, the solid fixed splint 11: between the operation of polishing on concrete slab surface twice, need not to take off the concrete slab again and change the polished surface of concrete slab, effectual reduction workman's intensity of labour then improves work efficiency, and flexible side board 15 is used for further restricting the degree of freedom of concrete slab, avoids the concrete slab to take place the skew during unilateral is polished.

Referring to fig. 7, the rubber layers are mounted at the opposite side ends of the fixed clamping plate 11 and the movable clamping plate 12, and the rubber layers can increase the friction between the fixed clamping plate 11, the movable clamping plate 12 and the concrete precast slab, thereby being beneficial to reducing the possibility of the concrete precast slab shifting.

Referring to fig. 3, 4, 8, 9, 10 and 11, the polishing mechanism 2 includes an executing portion 20 and a polishing portion 21, the executing portion 20 includes a u-shaped plate 200, a cylinder 201, a gantry 202, a rectangular block 203, an elastic plate 204, a steel cable 205 and a motor 206, the gantry 202 is disposed on the ground, the inverted u-shaped plate 200 is slidably connected to the lower end of the horizontal section of the gantry 202 through the cylinder 201, the polishing portion 21 is disposed at the lower end of the u-shaped plate 200, the opposing sides of the horizontal section of the gantry 202 are provided with the rectangular blocks 203 from left to right at equal intervals, the lower ends of the rectangular blocks 203 are symmetrically provided with the elastic plates 204, the cylinder 201 is disposed between the elastic plates 204, the opposing back end of the cylinder 201 is connected to one end of the steel cable 205, the steel cable 205 is disposed between the elastic plate 204 and the opposing sides of the elastic plates 204 and the gantry 202, the other end of the steel cable 205 bypasses the right side of the cylinder 201 and is rotatably disposed at the opposing back side of the gantry 202 to fix the steel cable 205 at the opposing side of the gantry 202 The rotating shaft is connected with the right side of the u-shaped plate 200, and the opposite end of the rotating shaft is connected with the output shaft of a first motor 206 placed on the ground.

The concrete precast slabs are vertically placed on the fixed base 10 in a manual mode, the concrete precast slabs are positioned between the movable clamping plate 12 and the fixed clamping plate 11, the concrete precast slabs are tightly attached to the right end face of the fixed clamping plate 11 and the front end face of the telescopic side plate 15, the movable clamping plate 12 is pushed leftwards through the electric push rod 14, the telescopic side plate 15 synchronously contracts until the movable clamping plate 12 slightly clamps the concrete precast slabs, then the grinding part 21 on the front side of the concrete precast slabs starts working, the grinding part 21 grinds the surface of the concrete precast slabs from bottom to top, after the grinding part 21 finishes single grinding, the rotating shaft is driven to rotate through the first motor 206, the rotating shaft synchronously winds the steel rope 205, the cylinder 201 drives the U-shaped plate 200 to do linear motion rightwards under the pulling of the steel rope 205, the U-shaped plate 200 drives the grinding part 21 to synchronously move rightwards, and the elastic sheet 204 in contact with the cylinder 201 is extruded and bent, the column 201 moves rightwards after being separated from the elastic sheet plates 204 which are in contact with the column 201, when the column 201 is located between the elastic sheet plates 204 which are connected with the next rectangular block 203, the motor 206 stops working, then the grinding part 21 works again, the surface of the concrete prefabricated slab is ground from top to bottom, the ground part 21 does not coincide with but is close to the ground part of the concrete prefabricated slab, the whole grinding of the ground surface of the concrete prefabricated slab is completed according to the operation, the column 201 can be reset through the manual cooperation with the motor 206, and the concrete operation is as follows: the rotating shaft is rotated by a motor 206, the steel rope is unreeled, and the U-shaped plate and the whole cylinder are moved leftwards in a manual mode in a matching mode, so that the U-shaped plate drives the polishing part 21 to move synchronously until the U-shaped plate and the whole cylinder return to the original position.

The executing part 20 has the following main functions on the basis of realizing the function of changing the position of the polishing part 21: the distance that the portion 21 single removed of injecing polishes avoids taking place the stack between the portion 21 position of polishing of the nth time in concrete precast slab surface and the portion 21 position of polishing of n +1 time, and leads to concrete precast slab surface to present the inhomogeneous state of polishing.

Referring to fig. 3, 8, 9, 10 and 11, the polishing portion 21 includes an air cylinder 210, rail plates 211, an electric slider 212, a vacuum cleaner 213, a housing 214, a polishing disc 215, a second motor 216, a vacuum cleaner 217 and a connecting pipe 218, the air cylinder 210 is disposed at the lower end of the U-shaped plate 200, the electric slider 212 is connected to the left and right ends of the air cylinder 210 through the rail plates 211, the electric slider 212 is mounted at the vertical section of the U-shaped plate 200, the vacuum cleaner 213 is mounted at the pushing end of the air cylinder 210, the vacuum cleaner 213 is slidably mounted between the rail plates 211, a circular tube for fixing the housing 214 is mounted at the rear end of the vacuum cleaner 213, the fixing mechanism 1 is located between the housings 214, the polishing disc 215 is disposed inside the housing 214, the opposite end of the polishing disc 215 is located outside the housing 214, the polishing disc 215 is sleeved on the output shaft of the second motor 216, the second motor 216 is mounted on the inner wall of the housing 214, the cleaning plates 217 are disposed inside the housing 214 along the circumferential direction of the polishing disc 215, the dust suction plate 217 is connected to one end of a connection pipe 218, the other end of the connection pipe 218 is connected to a circular pipe, the connection pipe 218 penetrates through the housing 214, the dust suction machine 213 is pushed toward the precast concrete slab by the air cylinder 210, the dust suction machine 213 drives the housing 214 to move synchronously, the housing 214 drives the polishing disc 215 and the second motor 216 to move synchronously until the polishing disc 215 contacts the surface of the precast concrete slab, then the polishing disc 215 is driven by the second motor 216 to rotate, the rail plate 211 and the air cylinder 210 move synchronously upward by the electric slider 212, the polishing disc 215 also moves synchronously upward, the polishing disc 215 polishes the surface of the precast concrete slab, after the polishing disc 215 moves above the precast concrete slab, the polishing disc 215 moves rightwards by a corresponding distance by the execution part 20, and then the polishing disc 215 moves downwards by the electric slider 212, the polishing disc 215 polishes the surface of the precast concrete slab, the whole grinding of the grinding surface of the concrete precast slab is completed according to the above operation mode, and dust generated by grinding is synchronously sucked and removed through the cooperation of the dust collector 213, the circular pipe, the connecting pipe 218 and the dust collection plate 217 while grinding.

The advantage of multidirectional setting of dust absorption board 217 is: the dust collection range is enlarged, dust collection dead angles are reduced, dust generated by polishing is timely absorbed by the dust collector 213 to the maximum extent, the probability of dust scattering to the working environment is reduced, the housing 214 can form a closed space when contacting with the concrete prefabricated slab is completed, the dust is covered, the dust is further favorably absorbed by the dust collector 213 in time, and the probability of dust scattering is reduced.

Referring to fig. 4, a first through hole is formed in the front end of the rectangular block 203, a second through hole 207 is formed in the opposite side of the horizontal section of the portal frame 202, a limiting pin 208 for fixing the rectangular block 203 is clamped between the first through hole and the second through hole 207 corresponding to the first through hole in position, the number of the second through holes 207 in the same portal frame 202 is more than that of the first through hole, a threaded connection mode is adopted between the polishing disc 215 and an output shaft of a second motor 216, the diameter size specifications of the polishing disc 215 used in cooperation with the polishing part 21 are various, after the polishing discs 215 with different diameters are replaced, the limiting pin 208 is detached manually, then the rectangular block 203 is moved to the corresponding position, the distance between adjacent rectangular blocks 203 is adjusted, and then the limiting pin 208 is reinstalled to fix the rectangular block 203.

Referring to fig. 10 and 11, the middle part of housing 214 be semicircle annular plate 220, semicircle annular plate 220's upper end joint has upper shrouding 221, semicircle annular plate 220's lower extreme has lower floor's shrouding 223 through bayonet 222 joint, connecting pipe 218 run through semicircle annular plate 220, lift bayonet 222 off through artifical mode, then take off lower floor's shrouding 223 and upper shrouding 221 in proper order, carry out surface cleaning to upper shrouding 221, lower floor's shrouding 223 and semicircle annular plate 220 afterwards, avoid upper shrouding 221, lower floor's shrouding 223 and semicircle annular plate 220 three surface area to attach more dust.

Referring to fig. 10 and 11, the non-annular surface of the opposite side of the semicircular plate 220 is provided with a rectangular groove, the left and right inner side walls of the rectangular groove are rotatably provided with rolling shafts 224 through pin shafts, the rolling shafts 224 are equidistantly arranged from top to bottom, and the distance between the axis of the rolling shaft 224 and the non-annular surface of the opposite side of the semicircular plate 220 is smaller than the radius of the rolling shaft 224, so that rolling friction can be generated between the rolling shaft 224 and the surface of the concrete precast slab, thereby reducing the movement resistance of the cover 214 during the movement along the surface of the concrete precast slab and avoiding additional abrasion on the surface of the concrete precast slab.

Referring to fig. 9 and 11, the connection pipe 218 is composed of a fixed pipe 230 and an engagement pipe 231, one end of the fixed pipe 230 is communicated with a circular pipe, the other end of the fixed pipe 230 penetrates through the housing 214 and is located in the housing 214, one end of the engagement pipe 231 is connected with one end of the fixed pipe 230 located in the housing 214 through a screw-fit manner, the other end of the engagement pipe 231 is connected with the dust suction plate 217, the polishing disc 215, the engagement pipe 231 and the dust suction plate 217 are sequentially detached by a manual manner on the basis that the upper sealing plate 221 and the lower sealing plate 223 are detached, and then the polishing disc 215 and the dust suction plate 217 are completely cleaned, so that the polishing disc 215 is prevented from being accumulated with more dust on the surface to reduce the polishing effect of the polishing disc 215.

Referring to fig. 11, brushes 225 are installed on opposite sides of the lower closing plate 223 at equal intervals from left to right, and the brushes 225 are simultaneously swept along the surface of the precast concrete slab during the movement of the cover 214 along the surface of the precast concrete slab to remove residual dust or easily cleaned particulate impurities, etc.

Referring to fig. 3 and 5, the upper end of the fixing base 10 is fastened with the chevron-shaped plate 100, the chevron-shaped plate 100 is located below the housing 214, and the chevron-shaped plate 100 is used for receiving dust or particle impurities falling or cleaned by the brush 225, so that the dust or particle impurities are prevented from being accumulated on the ground and are not convenient to clean.

Referring to fig. 10 and 11, the sponge layer 226 for absorbing dust is adhered to the inner surface of the housing 214, the sponge layer 226 can absorb dust generated by grinding, and the dust is absorbed in the housing 214 to the maximum extent by the cooperation between the dust collector 213 and the housing 214, so that the probability of dust scattering to the working environment is greatly reduced.

When utilizing top layer grinding device to carry out the surface to concrete precast slab and polish, first step, fixed concrete precast slab: because of the concrete precast slab single only carries out the single face and polishes, so need make through artifical mode to insert piece 16 and insert the rectangle and lead to the groove, and install vertical round bar 17, accomplish between flexible side board 15 and solid fixed splint 11 and the activity splint 12 and be connected fixedly, then vertically place the concrete precast slab on unable adjustment base 10 through artifical mode, the concrete precast slab is located between activity splint 12 and the solid fixed splint 11, and the concrete precast slab is hugged closely with the right-hand member face of solid fixed splint 11, the preceding terminal surface of flexible side board 15, promote movable splint 12 through electric putter 14 left side immediately, flexible side board 15 contracts in step, press from both sides tight concrete precast slab slightly until activity splint 12, so far the concrete precast slab obtains fixedly.

Step two, polishing the single side surface: the dust collector 213 is pushed towards the direction of the concrete precast slab by the air cylinder 210, the dust collector 213 drives the cover 214 to synchronously move, the cover 214 drives the polishing disc 215 and the second motor 216 to synchronously move until the polishing disc 215 contacts the surface of the concrete precast slab, then the polishing disc 215 is driven to rotate by the second motor 216, meanwhile, the track plate 211 and the air cylinder 210 synchronously move upwards by the electric slide block 212, the polishing disc 215 also synchronously moves upwards, and the polishing disc 215 polishes the surface of the concrete precast slab.

Step three, polishing and dedusting in a progressive manner: after the polishing disc 215 moves to the upper part of the concrete precast slab, the polishing disc 215 finishes single polishing, then the rotating shaft is driven to rotate by a first motor 206, the rotating shaft synchronously winds up the steel rope 205, the cylinder 201 drives the U-shaped plate 200 to do rectilinear motion rightwards under the pulling of the steel rope 205, the U-shaped plate 200 drives the polishing part 21 to synchronously move rightwards, the elastic sheet plate 204 contacted with the cylinder 201 is extruded and bent, the cylinder 201 and the elastic sheet plate 204 contacted with the cylinder 201 are separated and then continue to move rightwards, when the cylinder 201 is positioned between the elastic sheet plates 204 connected with the next rectangular block 203, the first motor 206 stops working, then the polishing part 21 works again, and polishes the surface of the concrete precast slab from top to bottom, the polishing part 21 polished at this time is not overlapped with but is adjacent to the last polished part, the whole polishing surface of the concrete precast slab is finished according to the above operation, during polishing, dust generated by polishing is synchronously sucked and removed through the cooperation of the dust collector 213, the circular tube, the connecting tube 218 and the dust collecting plate 217.

Fourthly, converting the polished surface of the concrete precast slab: after the third step is completed, the polishing disc 215 at the front side of the concrete precast slab returns to the original position, then the side retractable plate 15 is detached manually, the side retractable plate 15 is attached to the polished surface of the concrete precast slab and fixed between the movable clamping plate 12 and the fixed clamping plate 11 according to the operation steps in the first step, and then the surface of the concrete precast slab is polished by the polishing mechanism 2 at the rear side of the concrete precast slab according to the operation steps in the second step and the third step.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete precast slab top layer grinding device, includes fixed establishment (1) and grinding machanism (2), its characterized in that: the fixing mechanism (1) and the polishing mechanism (2) are both arranged on the ground, and the polishing mechanism (2) is symmetrically arranged in front and back of the fixing mechanism (1);

the U-shaped plate grinding mechanism (2) comprises an execution part (20) and a grinding part (21), the execution part (20) comprises a U-shaped plate (200), a cylinder (201), a portal frame (202), rectangular blocks (203), elastic sheet plates (204), a steel rope (205) and a motor (206), the portal frame (202) is arranged on the ground, the U-shaped plate (200) in an inverted structure is slidably connected with the lower end of the horizontal section of the portal frame (202) through the cylinder (201), the grinding part (21) is arranged at the lower end of the U-shaped plate (200), the rectangular blocks (203) are arranged on the opposite sides of the horizontal section of the portal frame (202) from left to right at equal intervals, the elastic sheet plates (204) are symmetrically arranged at the left and right of the lower end of the rectangular block (203), the cylinder (201) is arranged between the elastic sheet plates (204), the opposite ends of the cylinder (201) are connected with one end of the steel rope (205), the steel rope (205) is arranged between the elastic sheet plates (204) and the opposite sides of the portal frame (202), the other end of the steel rope (205) bypasses a shaft rod which is positioned on the right side of the cylinder (201) and is rotatably arranged on the opposite back side of the portal frame (202) to be connected with a rotating shaft which is rotatably arranged on the opposite back side of the portal frame (202) and is used for fixing the steel rope (205), the rotating shaft is positioned on the right side of the U-shaped plate (200), and the opposite end of the rotating shaft is connected with an output shaft of a first motor (206) which is arranged on the ground;

the polishing part (21) comprises an air cylinder (210), a rail plate (211), an electric sliding block (212), a dust collector (213), a cover shell (214), a polishing disc (215), a second motor (216), a dust collecting plate (217) and a connecting pipe (218), the air cylinder (210) is arranged at the lower end of the U-shaped plate (200), the electric sliding block (212) is connected with the left end and the right end of the air cylinder (210) through the rail plate (211), the electric sliding block (212) is arranged at the vertical section of the U-shaped plate (200), the dust collector (213) is arranged at the pushing end of the air cylinder (210), the dust collector (213) is slidably arranged between the rail plates (211), a round pipe used for fixing the cover shell (214) is arranged at the rear end of the dust collector (213), a fixing mechanism (1) is positioned between the cover shells (214), the polishing disc (215) is arranged inside the cover shell (214), the opposite end of the polishing disc (215) is positioned outside the cover shell (214), the grinding disc (215) is sleeved on an output shaft of the second motor (216), the second motor (216) is installed on the inner wall of the housing (214), dust suction plates (217) which are circumferentially distributed along the grinding disc (215) are distributed in the housing (214), the dust suction plates (217) are connected with one end of a connecting pipe (218), the other end of the connecting pipe (218) is connected with a circular pipe, and the connecting pipe (218) penetrates through the housing (214).

2. The concrete precast slab surface grinding device according to claim 1, characterized in that: the fixing mechanism (1) comprises a fixed base (10), a fixed clamping plate (11), a movable clamping plate (12), a mounting plate (13) and telescopic side plates (15), wherein the fixed base (10) is arranged on the ground, the fixed clamping plate (11) is installed at the left end of the upper end face of the fixed base (10), the movable clamping plate (12) is installed at the right end of the upper end face of the fixed base (10) in a sliding manner, the mounting plate (13) used for fixing an electric push rod (14) is installed at the right end face of the fixed base (10), one end, far away from the mounting plate (13), of the electric push rod (14) is connected with the side end of the movable clamping plate (12), the electric push rods (14) are symmetrically arranged up and down, the telescopic side plates (15) which are arranged up and down are arranged between the rear ends of the fixed clamping plate (11) and the movable clamping plate (12), rectangular through grooves for inserting the blocks (16) in a plugging manner are formed in the side ends of the fixed clamping plate (11) and the movable clamping plate (12), the inserting block (16) is installed on the front end face of the telescopic side plate (15), and a vertical round rod (17) is inserted into the front end of the inserting block (16).

3. The concrete precast slab surface grinding device according to claim 1, characterized in that: rectangular block (203) front end seted up a through-hole, portal frame (202) horizontal segment's the side of keeping back on the back open and be equipped with No. two through-holes (207), the joint has spacing pin (208) that are used for fixed rectangular block (203) between No. two through-holes (207) that a through-hole and position correspond with it, the quantity of No. two through-holes (207) on same portal frame (202) is more than the quantity of a through-hole.

4. The concrete precast slab surface grinding device according to claim 1, characterized in that: the middle part of housing (214) be semicircle crown plate (220), the upper end joint of semicircle crown plate (220) has upper shrouding (221), the lower extreme of semicircle crown plate (220) has lower floor shrouding (223) through bayonet lock (222) joint, connecting pipe (218) run through semicircle crown plate (220).

5. The concrete precast slab surface grinding device according to claim 4, wherein: the semicircular plate is characterized in that a rectangular groove is formed in the non-annular surface of the opposite side of the semicircular plate (220), rolling shafts (224) are rotatably arranged between the left inner side wall and the right inner side wall of the rectangular groove through pin shafts, the rolling shafts (224) are arranged from top to bottom at equal intervals, and the distance between the axis of each rolling shaft (224) and the non-annular surface of the opposite side of the semicircular plate (220) is smaller than the radius of each rolling shaft (224).

6. The concrete precast slab surface grinding device according to claim 1, characterized in that: the connecting pipe (218) consists of a fixed pipe (230) and an adapter pipe (231), one end of the fixed pipe (230) is communicated with the circular pipe, the other end of the fixed pipe (230) penetrates through the housing (214) and is positioned in the housing (214), one end of the adapter pipe (231) is connected with one end of the fixed pipe (230) positioned in the housing (214) in a threaded fit mode, and the other end of the adapter pipe (231) is connected with the dust collection plate (217).

7. The concrete precast slab surface grinding device according to claim 4, wherein: the opposite sides of the lower layer closing plate (223) are provided with brushes (225) at equal intervals from left to right.

8. The concrete precast slab surface grinding device according to claim 2, characterized in that: the upper end of the fixed base (10) is clamped with a Chinese character 'shan' shaped plate (100), and the Chinese character 'shan' shaped plate (100) is positioned below the housing (214).

9. The concrete precast slab surface grinding device according to claim 1, characterized in that: the inner surfaces of the shells (214) are all adhered with sponge layers (226) for absorbing dust.

10. The concrete precast slab surface grinding device according to claim 2, characterized in that: rubber layers are arranged at the opposite side ends of the fixed clamping plate (11) and the movable clamping plate (12).