Rough grinding device for bridge concrete production

Abstract

The invention relates to the technical field of polishing devices, in particular to a coarse polishing device for bridge concrete production, which comprises a grip shell, a starting assembly arranged on a bearing ring and used for polishing an aggregate concentration area, two knocking assemblies arranged on a fixing plate and used for generating vibration, and a linkage assembly arranged in a placing shell and used for connecting equipment. The bearing shell is provided with a dust suction assembly used for collecting polishing dust, the dust outlet shell is provided with a filtering assembly, and the buffering disc and the vibration transmission disc are each provided with a reverse rotation assembly used for being matched with the starting assembly. When the grinding device encounters an aggregate concentration area during grinding, high-frequency vibration can be generated under the cooperation of the trigger block and the telescopic block, alternating shear stress can be induced at the interface of the aggregate concentration area and a cement matrix, the cohesive force of the aggregate matrix is weakened, repeated grinding of the aggregate concentration area is avoided, and the grinding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a rough grinding device for bridge concrete production. Background Art

[0002] Concrete slab is an object with high compressive strength and can withstand huge pressure, which makes it very suitable for bridge construction. Concrete slab needs to be roughly ground during production to eliminate tiny bumps, depressions or rough textures on the surface. During the rough grinding of concrete slabs, due to insufficient vibration during concrete production, a raised aggregate concentration area will be formed. The aggregate concentration area is mostly high-hardness materials such as granite and quartzite with a Mohs hardness of 5 to 7, while the hardness of the cement matrix is ​​only 3 to 4 on the Mohs hardness. When grinding the aggregate concentration area, due to their different hardness, when the grinding disc is grinding to the aggregate concentration area, the grinding disc will contact the raised surface. The wear degree of the grinding stone will decrease, and the skeleton concentration area needs to be repeatedly polished. In this case, the grinding efficiency will be reduced, making the grinding process more cumbersome. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a rough grinding device for bridge concrete production.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a handle shell, one end of the handle shell is fixedly connected to an equipment shell, one end of the equipment shell is fixedly connected to a placement shell, the outer side of the equipment shell is fixedly connected to a transmission shell, the outer side of the transmission shell is fixedly connected to a load-bearing shell, the placement shell is provided with two grinding discs for grinding concrete slabs, the bottom of the placement shell is fixedly connected to a bearing ring, the bearing ring is provided with a starting assembly for grinding aggregate concentration areas, the inside of the starting assembly is provided with a starting column and an inverse clamping strip, the cooperation of the starting column and the inverse clamping strip can reduce the rotation speed of one of the grinding discs, the inside of the starting assembly is provided with two positioning columns, one of the positioning columns is provided with a fixed plate, the fixed plate is provided with two knocking assemblies for generating vibration, the inside of the knocking assembly is provided with a trigger block and a telescopic block, the cooperation of the trigger block and the telescopic block can generate high-frequency vibration, the load-bearing shell is provided with a dust suction assembly for collecting dust generated when grinding concrete slabs, the dust suction assembly is provided with a dust outlet shell for controlling the outlet of the inhaled dust, the dust outlet shell is provided with a filter assembly for filtering dust, and the inside of the placement shell is provided with a linkage assembly for connecting the equipment; The starting assembly includes: a transmission shaft, two positioning posts, a starting post, two positioning pieces, a placement ring, two locking posts, two rotating posts, a buffer disk, a fixing plate, two anti-fall blocks, a vibration transmission disk and a plurality of trigger blocks; wherein a bearing is provided on the top of the placement shell, the transmission shaft is fixedly connected to the inner ring of the bearing on the placement shell, the outer side of the load-bearing ring is correspondingly fixedly connected to the two positioning posts and the two positioning pieces, the positioning post is an inverted L shape, and the two positioning posts are cross-distributed with the two positioning pieces, the bottom of each positioning piece is fixedly connected to the placement ring, the bottom of the placement ring is provided with a ring groove for connecting the rotating post, and the two rotating posts are correspondingly plugged into the rotating post. In the ring groove, the bottom of each rotating column is fixedly connected to a corresponding locking column, the two locking columns are fixedly connected to a buffer disk, and the top of each locking column is fixedly connected to the top of the placement ring, one of the positioning columns is fixedly connected to a fixing plate, and the corresponding ends of the bottoms of the two positioning columns are fixedly connected to an anti-fall block, and a plug ring for connecting the anti-fall blocks is provided on the outer side of the vibration disk, and the two anti-fall blocks are correspondingly plugged into the plug ring of the vibration disk, and the corresponding ends of the buffer disk and the vibration disk are provided with a plurality of trigger blocks, and the trigger blocks on the buffer disk and the vibration disk correspond, the starting column is plugged into the carrying ring, and the buffer disk and the vibration disk are provided with a reversing component for cooperating with the starting component; Each reversal component includes: a receiving column, a rotating disk, a first spring and an inverse clamping strip; wherein, a hemispherical groove for placing the rotating disk is provided at the axial center position of the buffer disk and the axial center position of the vibration transmission disk, each receiving column is correspondingly fixed in the hemispherical groove of the buffer disk and the hemispherical groove of the vibration transmission disk, each receiving column is movably connected to a rotating disk, and each rotating disk is fixedly connected to an inverse clamping strip on the outer side away from the hemispherical groove of the buffer disk and the hemispherical groove of the vibration transmission disk, and a spring for the inverse clamping strip to fit is provided on the starting column. Long groove, each first spring is arranged in the buffer disk hemispherical groove and the vibration disk hemispherical groove, and the two ends of the two first springs are respectively fixed to the reverse clamping strip and the corresponding inner wall of the buffer disk hemispherical groove and the inner wall of the vibration disk hemispherical groove, and one side corresponding to each reverse clamping strip is semi-arc-shaped, and when the starting column rotates forward, the semi-arc-shaped reverse clamping strip is pushed by the long groove part of the starting column to rotate toward the corresponding buffer disk hemispherical groove and the vibration disk hemispherical groove, and when the starting column rotates reversely, the end of each reverse clamping strip without the semi-arc-shaped end fits with the long groove of the starting column; Each of the knocking components includes: a telescopic cylinder, a telescopic column, a second spring, a telescopic block and a blocking piece; the two telescopic cylinders are correspondingly fixedly connected on the fixed plate, a second spring is provided inside each telescopic cylinder, and the two ends of each second spring are respectively fixedly connected to the inner wall of the telescopic cylinder and the blocking piece, the blocking piece is fixedly connected to the telescopic column, the second spring is sleeved on the telescopic column, and each telescopic column is fixedly connected to a telescopic block at one end away from the fixed plate, both sides of each telescopic block are semi-arc-shaped, the size of each telescopic block is smaller than the distance between the two corresponding trigger blocks, and the two telescopic blocks are respectively fitted with the trigger block on the buffer disk and the trigger block on the vibration disk, a cavity disk is fixedly connected to the bottom of the vibration disk, there are two cavity disks in total, and the other cavity disk is fixedly connected to the top of the transmission shaft, each A connecting piece is fixedly connected to each cavity disk, and the outer ring of each connecting piece is fixedly connected to a splash plate, and each splash plate is fixedly connected to a splash strip at one end away from the connecting piece, and each cavity disk is provided with a threaded groove for bolt connection, and the threaded groove on each cavity disk runs through the cavity on the cavity disk, and a fixing column is provided in the cavity of each cavity disk, and each fixing column is inserted into the cavity of the corresponding cavity disk, and each fixing column is provided with a threaded groove, and each cavity disk is provided with a bolt, and each bolt is threadedly connected to the corresponding cavity disk and the fixing column inside the cavity disk through the threaded groove on the cavity disk and the threaded groove on the fixing column, and a nut is threadedly connected to both ends of each bolt, and each fixing column is fixedly connected to a fixing disk, and each fixing disk is fixedly connected to a grinding disk.

[0005] Preferably, through the coordinated use of the starting assembly, the reversing assembly and the striking assembly, when it is necessary to perform rough grinding on the bridge concrete slab, the positive rotation of the transmission shaft drives the grinding disc on the top of the placement shell to rotate, and then the transmission shaft drives the starting column to rotate when it rotates forward, and then the starting column pushes the two reverse clamping strips to move toward the corresponding inside of the buffer plate and the inside of the vibration plate when it rotates forward, and then the first spring of the reverse clamping strip is stretched when it moves, and then a grinding disc on the top of the placement shell is first used to perform normal rough grinding on the bridge concrete slab. When there is an aggregate concentrated area on the surface of the bridge concrete slab, the transmission shaft is rotated in the reverse direction, and then the starting column is driven to rotate when the transmission shaft rotates. When the starting column rotates in the reverse direction to the position corresponding to the reverse clamping strip, the long groove of the starting column fits with the reverse clamping strip, and then the starting column rotates to the reverse direction When the long slot of the clamping strip is in the position, the reverse clamping strip is driven to revolve around the starting column, and then the two reverse clamping strips drive the buffer plate and the vibration plate to rotate when they revolve. When the buffer plate and the vibration plate rotate, several trigger blocks on the buffer plate and the vibration plate push the two telescopic blocks to move toward the position of the telescopic tube, and then the second spring is compressed. When the trigger block releases the limit on the telescopic block, the second spring rebounds and drives the telescopic block to knock the anti-fall block to vibrate, and then the vibration plate drives the corresponding grinding plate to rotate through the cavity plate when it rotates, and then the grinding plate at the bottom of the vibration plate is used to roughly grind the aggregate concentrated area on the bridge concrete slab. When the grinding plate needs to be replaced, the nut is rotated to release the threaded connection with the bolt, and then the bolt is rotated to release the threaded connection with the fixed column, and then the grinding plate is removed for replacement.

[0006] As a preferred technical solution of the present invention, the dust collection assembly includes: a single-head gear column, a bearing plate, two load-bearing bars, a centrifugal shell, a fan blade, a back plate and a dust outlet shell; wherein, a bearing is provided on the load-bearing shell, the single-head gear column is fixedly connected to the inner ring of the bearing on the load-bearing shell, the two load-bearing bars are correspondingly fixedly connected to one end of the load-bearing shell away from the transmission shell, the two load-bearing bars are fixedly connected to the back plate at one end away from the load-bearing shell, the bearing plate is fixedly connected in the middle of the two load-bearing bars, a bearing is provided on the bearing plate, the single-head gear column is fixedly connected to the inner ring of the bearing on the bearing plate, the back plate is fixedly connected to the centrifugal shell, the fan blade is arranged inside the centrifugal shell, the end of the single-head gear column away from the transmission shell passes through the back plate and is fixedly connected to the fan blade, and the bottom of the centrifugal shell is fixedly connected to the dust outlet shell; The linkage assembly includes: a bevel gear, a first double-headed gear column, a second double-barreled gear column, a bearing sheet and a stepper motor; wherein the bearing sheet is arranged inside the handle shell, a bearing is arranged on the bearing sheet, the first double-headed gear column is fixedly connected to the inner ring of the bearing on the bearing sheet, the stepper motor is arranged on the bearing sheet, the output shaft of the stepper motor is fixedly connected to the first double-headed gear column, a bevel gear is fixedly connected to the transmission shaft, and the bevel gear is meshed with a gear on the first double-headed gear column, the second double-barreled gear column is arranged inside the transmission shell, and one end of the second double-barreled gear column is movably connected to the transmission shell, another gear on the first double-headed gear column is meshed with a gear on the second double-barreled gear column, and another gear on the second double-barreled gear column is meshed with the single-headed gear column; The filter assembly includes: a dust housing, a plug-in frame, a filter sheet and a handle; wherein the top of the dust housing is fixedly connected to the transmission housing, the dust outlet housing is fixedly connected to the dust housing, the dust housing is provided with a U-shaped slot for connecting the plug-in frame, the outer side of the filter sheet is fixedly connected to the plug-in frame, the top of the plug-in frame is fixedly connected to the handle, the plug-in frame is plugged into the U-shaped slot of the dust housing, and the filter sheet is provided with a plurality of filter holes for air circulation.

[0007] Preferably, through the coordinated use of the dust suction component, the linkage component and the filter component, when the bridge concrete slab is roughly polished, the stepper motor is started, and then the stepper motor rotates to drive the first double-headed gear column and the second double-barrel gear column to rotate, the first double-headed gear column drives the transmission shaft to rotate through the meshing bevel gears, the second double-barrel gear column drives the single-headed gear column to rotate, and the single-headed gear column drives the centrifugal shell to rotate when rotating, and then the fan blades rotate to suck the dust generated during the polishing of the polishing disc into the inside of the centrifugal shell, the dust enters the dust outlet shell along the inner ring structure of the centrifugal shell, and then the dust enters the dust loading shell through the dust outlet shell, after entering the dust loading shell, the dust is blocked by the plug-in frame and retained in the dust loading shell, and when the plug-in frame needs to be replaced, the plug-in state of the plug-in frame and the dust loading shell is released, and then the plug-in frame is taken out for cleaning and replacement.

[0008] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. Through the coordinated use of the starting component, the reversing component and the knocking component, when encountering an aggregate concentrated area during grinding, high-frequency vibration can be generated through the cooperation of the trigger block and the telescopic block, which can induce alternating shear stress at the interface between the aggregate concentrated area and the cement matrix, weaken the bonding force of the aggregate matrix, avoid repeated grinding of the aggregate concentrated area, and improve the grinding efficiency.

[0009] 2. Through the coordinated use of the starting component and the reversing component, when the surface of the cement board is polished, the starting column and the reverse clamping strip can be used to switch the polishing disc according to the surface conditions of the cement board, so as to promote the reasonable distribution of the power required for polishing and avoid waste of resources.

[0010] 3. Through the coordinated use of the dust collection component and the filter component, when grinding the cement board, the fan blades and the filter sheet can absorb and filter the dust generated by grinding while grinding, thus preventing the large dust generated during the grinding process from entering the air and affecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the handle shell of the present invention; Figure 2 It is a schematic diagram of the transmission housing structure of the present invention; Figure 3 It is a schematic diagram of the load-bearing shell structure of the present invention; Figure 4 It is a schematic structural diagram of a first double-headed gear column of the present invention; Figure 5 It is a schematic diagram of the structure of the bevel gear of the present invention; Figure 6 It is a schematic diagram of the transmission shaft structure of the present invention; Figure 7 It is a schematic diagram of the structure of the vibration transmission plate of the present invention; Figure 8 It is a schematic diagram of the positioning column structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the buffer disk of the present invention; Fig.10 For the present invention Fig. 9 Detailed structural diagram at A in the middle; Fig.11 It is a schematic diagram of the fixed disk structure of the present invention; Fig.12 It is a schematic diagram of the centrifugal shell structure of the present invention; Fig.13 It is a schematic diagram of the dust outlet shell structure of the present invention.

[0012] Among them: 1. handle shell; 2. equipment shell; 3. placement shell; 4. transmission shell; 5. load-bearing shell; 6. load-bearing ring; 7. transmission shaft; 8. positioning column; 9. starting column; 10. positioning piece; 11. placement ring; 12. clamping column; 13. rotating column; 14. buffer plate; 15. fixing plate; 16. anti-drop block; 17. vibration plate; 18. trigger block; 19. receiving column; 20. rotating plate; 21. first spring; 22. reverse clamping strip; 23. telescopic tube; 24. telescopic column; 25. second spring; 26. telescopic block; 27. splash bar; 28. , cavity disk; 29, connecting plate; 30, splash plate; 31, grinding disk; 32, bevel gear; 33, first double-headed gear column; 34, second double-barreled gear column; 35, single-headed gear column; 36, bearing plate; 37, load-bearing bar; 38, centrifugal shell; 39, fan blade; 40, back plate; 41, dust discharge shell; 42, dust loading shell; 43, plug-in frame; 44, filter plate; 45, handle; 46, fixed disk; 47, fixed column; 48, bolt; 49, nut; 50, bearing plate; 51, stepper motor; 52, barrier plate; 53, hemispherical groove. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0014] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, a rough grinding device for bridge concrete production includes a handle shell 1, one end of the handle shell 1 is fixedly connected to an equipment shell 2, one end of the equipment shell 2 is fixedly connected to a placement shell 3, the outer side of the equipment shell 2 is fixedly connected to a transmission shell 4, the outer side of the transmission shell 4 is fixedly connected to a load-bearing shell 5, the placement shell 3 is provided with two grinding discs 31 for grinding concrete slabs, the bottom of the placement shell 3 is fixedly connected to a load-bearing ring 6, the load-bearing ring 6 is provided with a starting assembly for grinding aggregate concentration areas, the inside of the starting assembly is provided with a starting column 9 and an inverse clamping strip 22, and the cooperation of the starting column 9 and the inverse clamping strip 22 can lower one of the grinding discs 31. 1 speed, two positioning columns 8 are arranged inside the starting component, one of the positioning columns 8 is provided with a fixing plate 15, the fixing plate 15 is provided with two knocking components for generating vibration, a trigger block 18 and a telescopic block 26 are arranged inside the knocking component, and the cooperation of the trigger block 18 and the telescopic block 26 can generate high-frequency vibration, a dust collecting component for collecting dust generated when grinding the concrete slab is arranged on the load-bearing shell 5, a dust outlet shell 41 for controlling the outlet of the sucked dust is arranged on the dust outlet shell 41, and a filter component for filtering dust is arranged on the dust outlet shell 41, and a linkage component for connecting the device is arranged inside the placement shell 3; When the grinding disc 31 encounters an aggregate concentrated area, high-frequency vibration can be generated through the cooperation of the trigger block 18 and the telescopic block 26, which can induce alternating shear stress at the interface between the aggregate concentrated area and the cement matrix, weaken the bonding force of the aggregate matrix, avoid repeated grinding of the aggregate concentrated area, and improve the grinding efficiency.

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the starting assembly includes: a transmission shaft 7, two positioning columns 8, a starting column 9, two positioning pieces 10, a placement ring 11, two locking columns 12, two rotating columns 13, a buffer disk 14, a fixing plate 15, two anti-fall blocks 16, a vibration disk 17 and a plurality of trigger blocks 18; wherein, a bearing is provided on the top of the placement shell 3, the transmission shaft 7 is fixedly connected to the inner ring of the bearing on the placement shell 3, the outer side of the load-bearing ring 6 is correspondingly fixedly connected to the two positioning columns 8 and the two positioning pieces 10, the positioning column 8 is an inverted L shape, and the two positioning columns 8 are cross-distributed with the two positioning pieces 10, the bottom of each positioning piece 10 is fixedly connected to the placement ring 11, the bottom of the placement ring 11 is provided with an annular groove for connecting the rotating column 13, and the two The rotating column 13 is correspondingly inserted in the annular groove of the rotating column 13, and the bottom of each rotating column 13 is correspondingly fixedly connected to a snap-fit ​​column 12, and the two snap-fit ​​columns 12 are fixedly connected to a buffer disk 14, and the top of each snap-fit ​​column 12 is fixedly connected to the top of the placement ring 11, and a fixing plate 15 is fixedly connected to one of the positioning columns 8, and the corresponding ends of the bottoms of the two positioning columns 8 are fixedly connected to an anti-fall block 16, and an insert ring for connecting the anti-fall block 16 is provided on the outer side of the vibration disk 17, and the two anti-fall blocks 16 are correspondingly inserted on the insert ring of the vibration disk 17, and the buffer disk 14 and the vibration disk 17 The corresponding end is provided with a plurality of trigger blocks 18, and the buffer disk 14 corresponds to the trigger block 18 on the vibration disk 17, and the start column 9 is inserted into the carrying ring 6; When it is necessary to perform rough grinding on the bridge concrete slab, the transmission shaft 7 rotates forward to drive the grinding disc 31 on the top of the placement shell 3 to rotate, and then the transmission shaft 7 drives the starting column 9 to rotate when rotating forward, and then the starting column 9 pushes the two reverse clamping strips 22 to move toward the corresponding buffer plate 14 and the vibration plate 17 when rotating forward, and then the first spring 21 of the reverse clamping strip 22 is stretched when moving, and then a grinding disc 31 on the top of the placement shell 3 is used to perform normal rough grinding on the bridge concrete slab, so that the rotation speed of one grinding disc 31 is reduced when necessary.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the buffer disk 14 and the vibration disk 17 are both provided with a reversing component for cooperating with the starting component; each reversing component includes: a receiving column 19, a rotating disk 20, a first spring 21 and a reverse clamping strip 22; wherein, the axial center position of the buffer disk 14 and the axial center position of the vibration disk 17 are both provided with a hemispherical groove 53 for placing the rotating disk 20, each receiving column 19 is correspondingly fixed in the hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration disk 17, each receiving column 19 is movably connected to a rotating disk 20, and each rotating disk 20 is fixedly connected to an reverse clamping strip 22 on the outer side away from the hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration disk 17, The moving column 9 is provided with a long groove for the reverse clamping strip 22 to fit, each first spring 21 is arranged in the hemispherical groove 53 of the buffer plate 14 and the hemispherical groove 53 of the vibration plate 17, and the two ends of the two first springs 21 are respectively fixed to the reverse clamping strip 22 and the corresponding inner wall of the hemispherical groove 53 of the buffer plate 14 and the inner wall of the hemispherical groove 53 of the vibration plate 17, and one side corresponding to each reverse clamping strip 22 is semi-arc-shaped, and when the starting column 9 rotates forward, the semi-arc-shaped reverse clamping strip 22 is pushed by the long groove part of the starting column 9 to rotate toward the corresponding hemispherical groove 53 of the buffer plate 14 and the hemispherical groove 53 of the vibration plate 17, and when the starting column 9 rotates reversely, the end of each reverse clamping strip 22 without the semi-arc-shaped fits with the long groove of the starting column 9; When encountering an aggregate concentration area on the surface of the bridge concrete slab, the transmission shaft 7 is rotated in the opposite direction, and the rotation of the transmission shaft 7 drives the starting column 9 to rotate. When the starting column 9 is rotated in the opposite direction to the position corresponding to the reverse clamping strip 22, the long groove of the starting column 9 fits with the reverse clamping strip 22, and then the starting column 9 drives the reverse clamping strip 22 to revolve around the starting column 9 when it rotates to the position of the long groove of the reverse clamping strip 22. Then, the two reverse clamping strips 22 drive the buffer plate 14 and the vibration plate 17 to rotate when they revolve. When the buffer plate 14 and the vibration plate 17 rotate, several trigger blocks 18 on the buffer plate 14 and the vibration plate 17 push the two telescopic blocks 26 to move toward the position of the telescopic cylinder 23, and then the second spring 25 is compressed, so that the starting column 9 can rotate in the opposite direction when needed, thereby further optimizing the grinding process.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, each of the knocking components includes: a telescopic cylinder 23, a telescopic column 24, a second spring 25, a telescopic block 26 and a blocking piece 52; the fixed plate 15 is correspondingly fixedly connected to the two telescopic cylinders 23, each telescopic cylinder 23 is provided with a second spring 25 inside, and the two ends of each second spring 25 are respectively fixedly connected to the inner wall of the telescopic cylinder 23 and the blocking piece 52, the blocking piece 52 is fixedly connected to the telescopic column 24, the second spring 25 is sleeved on the telescopic column 24, and each telescopic column 24 is fixedly connected to a telescopic block 26 at one end away from the fixed plate 15, and both sides of each telescopic block 26 are semi-arc-shaped, and the size of each telescopic block 26 is smaller than the distance between the two corresponding trigger blocks 18, and the two telescopic blocks 26 are respectively fitted with the trigger block 18 on the buffer disk 14 and the trigger block 18 on the vibration disk 17, and the bottom of the vibration disk 17 is fixedly connected to a cavity disk 28, and there are two cavity disks 28, and the other cavity disk 28 is fixedly connected to the top of the transmission shaft 7. Each cavity disk 28 is fixedly connected to a connecting piece 29, and the outer ring of each connecting piece 29 is fixedly connected to a splash plate 30. The end of each splash plate 30 away from the connecting piece 29 is fixedly connected to a splash bar 27. Each cavity disk 28 is provided with a threaded groove for bolt 48 connection, and the threaded groove on each cavity disk 28 penetrates the cavity on the cavity disk 28. A fixing column 47 is provided in the cavity of each cavity disk 28, and each fixing column 47 is plugged into the corresponding cavity. The cavity disk 28 is inside the cavity, and each fixing column 47 is provided with a threaded groove. Each cavity disk 28 is provided with a bolt 48, and each bolt 48 is threadedly connected to the corresponding cavity disk 28 and the fixing column 47 inside the cavity disk 28 through the threaded groove on the cavity disk 28 and the threaded groove on the fixing column 47. Both ends of each bolt 48 are threadedly connected to a nut 49, each fixing column 47 is fixedly connected to a fixing disk 46, and each fixing disk 46 is fixedly connected to a grinding disk 31.

[0018] When the trigger block 18 releases the limit on the telescopic block 26, the second spring 25 rebounds and drives the telescopic block 26 to knock the anti-fall block 16 to vibrate, and then the vibration plate 17 drives the corresponding grinding plate 31 to rotate through the cavity plate 28 when rotating, and then the grinding plate 31 at the bottom of the vibration plate 17 is used to roughly grind the aggregate concentrated area on the bridge concrete slab. When the grinding plate 31 needs to be replaced, the nut 49 is rotated to release the threaded connection with the bolt 48, and then the bolt 48 is rotated to release the threaded connection with the fixing column 47, and then the grinding plate 31 is removed for replacement. The interaction between the telescopic block 26 and the trigger block 18 generates vibration, which helps to break the concrete surface and improve the grinding efficiency.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, a rough grinding device for bridge concrete production, the dust collection component includes: a single-head gear column 35, a bearing plate 36, two load-bearing bars 37, a centrifugal shell 38, a fan blade 39, a back plate 40 and a dust outlet shell 41; wherein, a bearing is provided on the load-bearing shell 5, the single-head gear column 35 is fixedly connected to the inner ring of the bearing on the load-bearing shell 5, the two load-bearing bars 37 are correspondingly fixedly connected to the end of the load-bearing shell 5 away from the transmission shell 4, the ends of the two load-bearing bars 37 away from the load-bearing shell 5 are fixedly connected to the back plate 40, the bearing plate 36 is fixedly connected in the middle of the two load-bearing bars 37, a bearing is provided on the bearing plate 36, the single-head gear column 35 is fixedly connected to the inner ring of the bearing on the bearing plate 36, the back plate 40 is fixedly connected to the centrifugal shell 38, the fan blade 39 is arranged inside the centrifugal shell 38, the end of the single-head gear column 35 away from the transmission shell 4 passes through the back plate 40 and is fixedly connected to the fan blade 39, and the bottom of the centrifugal shell 38 is fixedly connected to the dust outlet shell 41; When the bridge concrete slab is roughly ground, the stepper motor 51 is started, and the stepper motor 51 rotates to drive the first double-headed gear column 33 and the second double-barreled gear column 34 to rotate. The first double-headed gear column 33 drives the transmission shaft 7 to rotate through the meshing bevel gear 32, and the second double-barreled gear column 34 drives the single-headed gear column 35 to rotate. The single-headed gear column 35 drives the centrifugal shell 38 to rotate when rotating, and then the fan blades 39 rotate to suck the dust generated by the grinding disc 31 during grinding into the inside of the centrifugal shell 38, which can collect the dust generated during the grinding process and keep the working environment clean.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13As shown, the linkage assembly includes: a bevel gear 32, a first double-headed gear column 33, a second double-barreled gear column 34, a bearing plate 50 and a stepper motor 51; wherein the bearing plate 50 is arranged inside the handle shell 1, a bearing is arranged on the bearing plate 50, the first double-headed gear column 33 is fixedly connected to the inner ring of the bearing on the bearing plate 50, the stepper motor 51 is arranged on the bearing plate 50, the output shaft of the stepper motor 51 is fixedly connected to the first double-headed gear column 33, a bevel gear 32 is fixedly connected to the transmission shaft 7, and the bevel gear 32 is meshed with a gear on the first double-headed gear column 33, the second double-barreled gear column 34 is arranged inside the transmission shell 4, and one end of the second double-barreled gear column 34 is movable with the transmission shell 4 The first double-headed gear column 33 is connected, another gear on the first double-barreled gear column 33 is meshed with a gear on the second double-barreled gear column 34, and another gear on the second double-barreled gear column 34 is meshed with the single-headed gear column 35. The filter assembly includes: a dust housing 42, a plug-in frame 43, a filter sheet 44 and a handle 45; wherein the top of the dust housing 42 is fixedly connected to the transmission housing 4, the dust outlet housing 41 is fixedly connected to the dust housing 42, a U-shaped slot for connecting the plug-in frame 43 is provided on the dust housing 42, the outer side of the filter sheet 44 is fixedly connected to the plug-in frame 43, the top of the plug-in frame 43 is fixedly connected to the handle 45, the plug-in frame 43 is plugged into the U-shaped slot of the dust housing 42, and the filter sheet 44 is provided with a plurality of filter holes for air circulation; When dust enters the dust outlet shell 41 along the inner ring structure of the centrifugal shell 38, and then enters the dust holding shell 42 through the dust outlet shell 41, the dust enters the dust holding shell 42 and is blocked by the plug-in frame 43 and retained in the dust holding shell 42. When the plug-in frame 43 needs to be replaced, the plug-in state of the plug-in frame 43 and the dust holding shell 42 is released, and then the plug-in frame 43 is taken out for cleaning and replacement, which can ensure that the various parts of the equipment are firmly connected and facilitate maintenance and replacement of parts.

[0021] Working principle: In the first step, when the bridge concrete slab needs to be roughly polished, the stepper motor 51 is started, and then the stepper motor 51 rotates to drive the first double-headed gear column 33 and the second double-barreled gear column 34 to rotate, and the transmission shaft 7 rotates forward to drive the grinding disc 31 on the top of the placement shell 3 to rotate, and then the transmission shaft 7 drives the starting column 9 to rotate when rotating forward, and then the starting column 9 pushes the two reverse clamping strips 22 to move toward the corresponding buffer plate 14 and the vibration plate 17 when rotating forward, and then the reverse clamping strip 22 is stretched by the first spring 21 when moving, and then the grinding disc 31 on the top of the placement shell 3 is used to perform normal rough polishing on the bridge concrete slab; In the second step, when encountering an aggregate concentration area on the surface of the bridge concrete slab, the transmission shaft 7 is rotated in the opposite direction, and the transmission shaft 7 drives the starting column 9 to rotate when rotating. When the starting column 9 is rotated in the opposite direction to the position corresponding to the reverse clamping strip 22, the long groove of the starting column 9 fits with the reverse clamping strip 22, and then the starting column 9 drives the reverse clamping strip 22 to revolve around the starting column 9 when rotating to the position of the long groove of the reverse clamping strip 22. Then, the two reverse clamping strips 22 drive the buffer plate 14 and the vibration plate 17 to rotate when revolving. When the buffer plate 14 and the vibration plate 17 rotate, the several trigger blocks 18 on the buffer plate 14 and the vibration plate 17 push the two telescopic blocks 26 to move toward the position of the telescopic cylinder 23, and then the second spring 25 is compressed; In the third step, when the trigger block 18 releases the limit on the telescopic block 26, the second spring 25 rebounds and drives the telescopic block 26 to knock the anti-fall block 16 to vibrate, and then the vibration plate 17 drives the corresponding grinding plate 31 to rotate through the cavity plate 28 when rotating, and then the aggregate concentration area on the bridge concrete slab is roughly ground by the grinding plate 31 at the bottom of the vibration plate 17. When the grinding plate 31 needs to be replaced, the nut 49 is rotated to release the threaded connection with the bolt 48, and then the bolt 48 is rotated to release the threaded connection state with the fixing column 47, and then the grinding plate 31 is removed for replacement; Step 4: When the first double-headed gear column 33 drives the transmission shaft 7 to rotate through the meshing bevel gear 32, the second double-barreled gear column 34 drives the single-headed gear column 35 to rotate, and the single-headed gear column 35 drives the centrifugal shell 38 to rotate when rotating, and then the fan blade 39 rotates to suck the dust generated by the grinding disc 31 into the inside of the centrifugal shell 38; The fifth step is that when the dust enters the dust outlet shell 41 along the inner ring structure of the centrifugal shell 38, and then the dust enters the dust holding shell 42 through the dust outlet shell 41, the dust enters the dust holding shell 42 and is blocked by the plug-in frame 43 and retained in the dust holding shell 42. When the plug-in frame 43 needs to be replaced, the plug-in state of the plug-in frame 43 and the dust holding shell 42 is released, and then the plug-in frame 43 is taken out for cleaning and replacement.

[0022] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A rough grinding device for bridge concrete production, comprising a handle shell (1), one end of the handle shell (1) is fixedly connected to a device shell (2), and one end of the device shell (2) is fixedly connected to a placement shell (3), characterized in that: The outer side of the equipment shell (2) is fixedly connected to a transmission shell (4), the outer side of the transmission shell (4) is fixedly connected to a load-bearing shell (5), the placement shell (3) is provided with two grinding discs (31) for grinding concrete slabs, the bottom of the placement shell (3) is fixedly connected to a bearing ring (6), the bearing ring (6) is provided with a starting assembly for grinding an aggregate concentration area, the inside of the starting assembly is provided with a starting column (9) and a reverse clamping strip (22), the cooperation of the starting column (9) and the reverse clamping strip (22) can reduce the rotation speed of one of the grinding discs (31), the inside of the starting assembly is provided with two positioning columns (8), one of which is (8) is provided with a fixing plate (15), the fixing plate (15) is provided with two striking components for generating vibration, a trigger block (18) and a telescopic block (26) are provided inside the striking components, and the trigger block (18) and the telescopic block (26) can generate high-frequency vibration in cooperation, a dust collecting component for collecting dust generated when grinding the concrete slab is provided on the load-bearing shell (5), a dust outlet shell (41) for controlling the outlet of the sucked dust is provided on the dust collecting component, a filter component for filtering dust is provided on the dust outlet shell (41), and a linkage component for connecting the device is provided inside the placement shell (3).

2. A rough grinding device for bridge concrete production according to claim 1, characterized in that: The starting assembly comprises: a transmission shaft (7), two positioning columns (8), a starting column (9), two positioning plates (10), a placement ring (11), two locking columns (12), two rotating columns (13), a buffer plate (14), a fixing plate (15), two anti-falling blocks (16), a vibration transmission plate (17) and a plurality of trigger blocks (18); The top of the placement shell (3) is provided with a bearing, the transmission shaft (7) is fixedly connected to the inner ring of the bearing on the placement shell (3), the outer side of the load-bearing ring (6) is fixedly connected to two positioning columns (8) and two positioning sheets (10), the positioning column (8) is in an inverted L shape, and the two positioning columns (8) and the two positioning sheets (10) are cross-distributed, the bottom of each positioning sheet (10) is fixedly connected to the placement ring (11), the bottom of the placement ring (11) is provided with an annular groove for connecting to a rotating column (13), the two rotating columns (13) are correspondingly inserted in the annular groove of the rotating column (13), the bottom of each rotating column (13) is correspondingly fixedly connected to a locking column (12), and the two locking columns (12) are fixedly connected to the A buffer disk (14) is fixedly connected, and the top of each engaging column (12) is fixedly connected to the top of the placement ring (11), a fixing plate (15) is fixedly connected to one of the positioning columns (8), and the corresponding ends of the bottoms of the two positioning columns (8) are fixedly connected to an anti-drop block (16), and the outer side of the vibration disk (17) is provided with a plug ring for connecting the anti-drop block (16), and the two anti-drop blocks (16) are correspondingly plugged into the plug ring of the vibration disk (17), and the corresponding ends of the buffer disk (14) and the vibration disk (17) are provided with a plurality of trigger blocks (18), and the trigger blocks (18) on the buffer disk (14) and the vibration disk (17) correspond to each other, and the start column (9) is plugged into the carrying ring (6).

3. A rough grinding device for bridge concrete production according to claim 2, characterized in that: The buffer disk (14) and the vibration transmission disk (17) are both provided with a reversing component for cooperating with the starting component; Each reversing assembly comprises: a receiving column (19), a rotating disk (20), a first spring (21) and a reverse clamping strip (22); The center position of the axis of the buffer disk (14) and the center position of the axis of the vibration disk (17) are both provided with a hemispherical groove (53) for placing the rotating disk (20), each receiving column (19) is fixed in the hemispherical groove (53) of the buffer disk (14) and the hemispherical groove (53) of the vibration disk (17) respectively, each receiving column (19) is movably connected to a rotating disk (20), each rotating disk (20) is fixedly connected to an inverse clamping strip (22) on the outer side away from the hemispherical groove (53) of the buffer disk (14) and the hemispherical groove (53) of the vibration disk (17), the starting column (9) is provided with a long groove for the inverse clamping strip (22) to fit, and each first spring (21) is arranged on the buffer disk (1 4) in the hemispherical groove (53) and the hemispherical groove (53) of the vibration plate (17), and the two ends of the two first springs (21) are respectively fixed to the reverse clamping strip (22) and the inner wall of the corresponding hemispherical groove (53) of the buffer plate (14) and the inner wall of the hemispherical groove (53) of the vibration plate (17), and the corresponding side of each reverse clamping strip (22) is semi-arc-shaped, and when the starting column (9) rotates forward, the semi-arc-shaped reverse clamping strip (22) is pushed by the long groove part of the starting column (9) to rotate toward the corresponding hemispherical groove (53) of the buffer plate (14) and the hemispherical groove (53) of the vibration plate (17), and when the starting column (9) rotates reversely, the end of each reverse clamping strip (22) without the semi-arc-shaped end is in contact with the long groove of the starting column (9).

4. A rough grinding device for bridge concrete production according to claim 3, characterized in that: Each of the striking components comprises: a telescopic cylinder (23), a telescopic column (24), a second spring (25), a telescopic block (26) and a blocking plate (52); Two telescopic cylinders (23) are correspondingly fixedly connected to the fixed plate (15), each telescopic cylinder (23) is provided with a second spring (25) inside, and the two ends of each second spring (25) are respectively fixedly connected to the inner wall of the telescopic cylinder (23) and the blocking plate (52), the blocking plate (52) is fixedly connected to the telescopic column (24), the second spring (25) is sleeved on the telescopic column (24), and one end of each telescopic column (24) away from the fixed plate (15) is fixedly connected to a telescopic block (26), both sides of each telescopic block (26) are semi-arc-shaped, the size of each telescopic block (26) is smaller than the distance between two corresponding trigger blocks (18), and the two telescopic blocks (26) are respectively fitted with the trigger block (18) on the buffer plate (14) and the trigger block (18) on the vibration plate (17).

5. A rough grinding device for bridge concrete production according to claim 4, characterized in that: A cavity disk (28) is fixedly connected to the bottom of the vibration transmission disk (17), there are two cavity disks (28) in total, and the other cavity disk (28) is fixedly connected to the top of the transmission shaft (7), each cavity disk (28) is fixedly connected to a connecting plate (29), the outer ring of each connecting plate (29) is fixedly connected to a splash plate (30), and the end of each splash plate (30) away from the connecting plate (29) is fixedly connected to a splash bar (27), each cavity disk (28) is provided with a threaded groove for bolt (48) connection, and the threaded groove on each cavity disk (28) penetrates the cavity on the cavity disk (28), and the cavity of each cavity disk (28) is A fixing column (47) is provided, each fixing column (47) is inserted into the cavity of the corresponding cavity disk (28), and each fixing column (47) is provided with a threaded groove, each cavity disk (28) is provided with a bolt (48), and each bolt (48) is threadedly connected to the corresponding cavity disk (28) and the fixing column (47) inside the cavity disk (28) through the threaded groove on the cavity disk (28) and the threaded groove on the fixing column (47), and each bolt (48) is threadedly connected to a nut (49) at both ends, each fixing column (47) is fixedly connected to a fixing disk (46), and each fixing disk (46) is fixedly connected to a grinding disk (31).

6. A rough grinding device for bridge concrete production according to claim 1, characterized in that: The dust collection assembly comprises: a single-head gear column (35), a bearing plate (36), two load-bearing bars (37), a centrifugal shell (38), a fan blade (39), a back plate (40) and a dust outlet shell (41); The load-bearing shell (5) is provided with a bearing, the single-head gear column (35) is fixedly connected to the inner ring of the bearing on the load-bearing shell (5), the two load-bearing bars (37) are correspondingly fixedly connected to one end of the load-bearing shell (5) away from the transmission shell (4), the two ends of the load-bearing bars (37) away from the load-bearing shell (5) are fixedly connected to the back plate (40), the bearing plate (36) is fixedly connected in the middle of the two load-bearing bars (37), the bearing plate (36) is provided with a bearing, the single-head gear column (35) is fixedly connected to the inner ring of the bearing on the bearing plate (36), the back plate (40) is fixedly connected to the centrifugal shell (38), the fan blade (39) is arranged inside the centrifugal shell (38), the end of the single-head gear column (35) away from the transmission shell (4) passes through the back plate (40) and is fixedly connected to the fan blade (39), and the bottom of the centrifugal shell (38) is fixedly connected to the dust outlet shell (41).

7. A rough grinding device for bridge concrete production according to claim 1, characterized in that: The linkage assembly comprises: a bevel gear (32), a first double-headed gear column (33), a second double-barreled gear column (34), a bearing plate (50) and a stepping motor (51); The bearing sheet (50) is arranged inside the handle shell (1), a bearing is arranged on the bearing sheet (50), a first double-headed gear column (33) is fixedly connected to the inner ring of the bearing on the bearing sheet (50), a stepper motor (51) is arranged on the bearing sheet (50), an output shaft of the stepper motor (51) is fixedly connected to the first double-headed gear column (33), a bevel gear (32) is fixedly connected to the transmission shaft (7), and the bevel gear (32) is meshed with a gear on the first double-headed gear column (33), a second double-barreled gear column (34) is arranged inside the transmission housing (4), and one end of the second double-barreled gear column (34) is movably connected to the transmission housing (4), another gear on the first double-headed gear column (33) is meshed with a gear on the second double-barreled gear column (34), and another gear on the second double-barreled gear column (34) is meshed with the single-headed gear column (35).

8. A rough grinding device for bridge concrete production according to claim 1, characterized in that: The filter assembly comprises: a dust housing (42), a plug-in frame (43), a filter sheet (44) and a handle (45); The top of the dust housing (42) is fixedly connected to the transmission housing (4), the dust outlet housing (41) is fixedly connected to the dust housing (42), a U-shaped slot for connecting to the plug-in frame (43) is provided on the dust housing (42), the outer side of the filter sheet (44) is fixedly connected to the plug-in frame (43), the top of the plug-in frame (43) is fixedly connected to the handle (45), the plug-in frame (43) is plugged into the U-shaped slot of the dust housing (42), and the filter sheet (44) is provided with a plurality of filter holes for air circulation.

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