A rough grinding device for bridge concrete production

Abstract

The present invention relates to the technical field of grinding devices, and particularly to a rough grinding device for bridge concrete production, which includes a grip shell. A starting component for grinding the aggregate concentration area is provided on the bearing ring. Two knocking components for generating vibration are provided on the fixed plate. A linkage component for connecting the equipment is provided inside the placement shell. A dust suction component for collecting grinding dust is provided on the load-bearing shell. A filtering component is provided on the dust outlet shell. Reverse components for cooperating with the starting component are provided on both the buffer disc and the vibration transmission disc. By the combined use of the starting component, the reverse component and the knocking component, when encountering an aggregate concentration 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 concentration area and the cement matrix, weaken the bonding force between the aggregate matrix, avoid repeated grinding of the aggregate concentration area, and improve the grinding efficiency.

Description

Technical Field

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

[0002] A concrete slab is an object with high compressive strength and can withstand huge pressures, which makes it very suitable for bridge construction. During the production of concrete slabs, rough grinding is required to eliminate small surface protrusions, depressions, or rough textures. During the rough grinding of concrete slabs, due to insufficient vibration during the concrete production process, a concentrated area of protruding aggregates will be formed. The concentrated area of aggregates is mostly composed of high-hardness materials such as granite and quartzite with a Mohs hardness of 5-7, while the hardness of the cement matrix is only 3-4 on the Mohs scale. When grinding the concentrated area of aggregates, due to the different hardnesses, when the grinding disc reaches the concentrated area of aggregates, the wear rate of the grinding disc when contacting the protruding surface will decrease, and thus the concentrated area of the skeleton needs to be ground repeatedly. 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] To solve the above technical problems, the present invention provides the following technical solutions: It includes a grip shell. One end of the grip shell is fixedly connected to an equipment shell. One end of the equipment shell is fixedly connected to a placement shell. The outside of the equipment shell is fixedly connected to a transmission shell. The outside of the transmission shell is fixedly connected to a load-bearing shell. The placement shell is provided with two grinding discs for grinding the concrete slab. The bottom of the placement shell is fixedly connected to a bearing ring. The bearing ring is provided with a starting component for grinding the concentrated area of aggregates. The inside of the starting component is provided with a starting column and a reverse clamping strip. With the cooperation of the starting column and the reverse clamping strip, the rotation speed of one of the grinding discs can be reduced. The inside of the starting component is provided with two positioning columns. One of the positioning columns is provided with a fixing plate. The fixing plate is provided with two knocking components for generating vibration. The inside of the knocking component is provided with a trigger block and a telescopic block. With the cooperation of the trigger block and the telescopic block, high-frequency vibration can be generated. The load-bearing shell is provided with a dust suction component for collecting the dust generated during the grinding of the concrete slab. The dust suction component is provided with a dust outlet shell for controlling the outlet of the inhaled dust. The dust outlet shell is provided with a filtering component for filtering the dust. The inside of the placement shell is provided with a linkage component for connecting the equipment;

[0005] The starting component includes: a transmission shaft, two positioning posts, a starting post, two positioning plates, a placement ring, two engaging posts, two rotating posts, a buffer plate, a fixing plate, two anti-falling blocks, a vibration transmission plate, and several trigger blocks; among them, a bearing is provided at 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 bearing ring is fixedly connected corresponding to the two positioning posts and the two positioning plates, the positioning posts are in an inverted L shape, and the two positioning posts and the two positioning plates are cross-distributed, the bottom of each positioning plate is fixedly connected to the placement ring, a ring groove for connecting the rotating posts is provided at the bottom of the placement ring, the two rotating posts are correspondingly inserted into the ring grooves of the rotating posts, the bottom of each rotating post is fixedly connected with an engaging post correspondingly, the two engaging posts are both fixedly connected to a buffer plate, and the top of each engaging post is fixedly connected to the top of the placement ring, a fixing plate is fixedly connected to one of the positioning posts, one end corresponding to the bottom of the two positioning posts is fixedly connected with an anti-falling block, an insertion ring for connecting the anti-falling block is provided on the outer side of the vibration transmission plate, the two anti-falling blocks are correspondingly inserted into the insertion rings of the vibration transmission plate, several trigger blocks are provided at the corresponding ends of the buffer plate and the vibration transmission plate, and the trigger blocks on the buffer plate and the vibration transmission plate correspond to each other, the starting post is inserted into the bearing ring, and a reverse rotation component for cooperating with the starting component is provided on both the buffer plate and the vibration transmission plate;

[0006] Each reverse rotation component includes: a receiving post, a rotating disk, a first spring, and a reverse engaging strip; among them, a hemispherical groove for placing the rotating disk is provided at the axial center position of the buffer plate and the axial center position of the vibration transmission plate, each receiving post is fixedly arranged correspondingly in the hemispherical groove of the buffer plate and the hemispherical groove of the vibration transmission plate, a rotating disk is movably connected to each receiving post, a reverse engaging strip is fixedly connected to the outer side of each rotating disk away from the hemispherical groove of the buffer plate and the hemispherical groove of the vibration transmission plate, a long groove for the reverse engaging strip to fit is provided on the starting post, each first spring is arranged in the hemispherical groove of the buffer plate and the hemispherical groove of the vibration transmission plate, and the two ends of the two first springs are fixedly connected to the reverse engaging strip and the inner wall of the corresponding hemispherical groove of the buffer plate and the inner wall of the hemispherical groove of the vibration transmission plate respectively, one side corresponding to each reverse engaging strip is semi-circular, and when the starting post rotates forward, the semi-circular shape of the reverse engaging strip rotates into the corresponding hemispherical groove of the buffer plate and the hemispherical groove of the vibration transmission plate under the push of the long groove part of the starting post, and when the starting post rotates backward, the non-semi-circular end of each reverse engaging strip fits with the long groove of the starting post;

[0007] Each of the percussion components includes: a telescopic cylinder, a telescopic column, a second spring, a telescopic block and a blocking piece; two telescopic cylinders are fixedly connected to the fixed plate correspondingly. A second spring is arranged inside each telescopic cylinder, and both ends of each second spring are fixedly connected to the inner wall of the telescopic cylinder and the blocking piece respectively. The blocking piece is fixedly connected to the telescopic column. The second spring is sleeved on the telescopic column. One end of each telescopic column far away from the fixed plate is fixedly connected with a telescopic block. Both sides of each telescopic block are semi-circular. The size of each telescopic block is smaller than the distance between two corresponding trigger blocks. And the two telescopic blocks are respectively in contact with the trigger blocks on the buffer disc and the trigger blocks on the vibration transmission disc. A cavity disc is fixedly connected to the bottom of the vibration transmission disc. There are two cavity discs in total. And the other cavity disc is fixedly connected to the top of the transmission shaft. A connecting piece is fixedly connected to each cavity disc. An anti-splash plate is fixedly connected to the outer ring of each connecting piece. One end of each anti-splash plate far away from the connecting piece is fixedly connected with an anti-splash strip. Thread grooves for bolt connection are arranged on each cavity disc. And the thread grooves on each cavity disc penetrate through the cavities on the cavity discs. A fixed column is arranged in the cavity of each cavity disc. Each fixed column is inserted into the cavity of the corresponding cavity disc. And thread grooves are arranged on each fixed column. A bolt is arranged on each cavity disc. And each bolt is threadedly connected with the corresponding cavity disc and the fixed column inside the cavity disc through the thread grooves on the cavity disc and the thread grooves on the fixed column. Nuts are threadedly connected to both ends of each bolt. A fixed disc is fixedly connected to each fixed column. A grinding disc is fixedly connected to each fixed disc.

[0008] Preferably, through the combined use of the starting component, the reversing component, and the knocking component, when rough grinding of the bridge concrete slab is required, the drive shaft rotates forward to drive the grinding disc at the top of the placing shell to rotate. Further, when the drive shaft rotates forward, it drives the starting column to rotate. Further, when the starting column rotates forward, it pushes the two reverse clamping strips to move towards the inside of the corresponding buffer disc and the inside of the vibration transmission disc. Further, when the reverse clamping strips move, the first spring stretches. Further, first, use one grinding disc at the top of the placing shell to perform normal rough grinding on the bridge concrete slab. When an aggregate concentration area is encountered on the surface of the bridge concrete slab, reverse-rotate the drive shaft. Further, when the drive shaft rotates, it drives the starting column to rotate. When the starting column rotates to a position corresponding to the reverse clamping strip, since the long groove of the starting column fits with the reverse clamping strip, further, when the starting column rotates to the position of the long groove of the reverse clamping strip, it drives the reverse clamping strip to revolve around the starting column. Further, when the two reverse clamping strips revolve, they drive the buffer disc and the vibration transmission disc to rotate. When the buffer disc and the vibration transmission disc rotate, several trigger blocks on the buffer disc and the vibration transmission disc push the two telescopic blocks to move towards the position of the telescopic cylinder. Further, the second spring is compressed. When the trigger block releases the limit on the telescopic block, the second spring rebounds to drive the telescopic block to knock the anti-falling block to generate vibration. Further, when the vibration transmission disc rotates, it drives the corresponding grinding disc to rotate through the cavity disc. Further, use the grinding disc at the bottom of the vibration transmission disc to perform rough grinding on the aggregate concentration area on the bridge concrete slab. When the grinding disc needs to be replaced, turn the nut to release the threaded connection between the nut and the bolt. Further, after turning the bolt, release the threaded connection state between the bolt and the fixed column. Further, remove the grinding disc for replacement.

[0009] As a preferred technical solution of the present invention, the dust suction component includes: a single-headed gear column, a bearing plate, two load-bearing strips, 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-headed gear column is fixedly connected to the inner ring of the bearing on the load-bearing shell, the two load-bearing strips are correspondingly fixedly connected to one end of the load-bearing shell away from the transmission shell, the ends of the two load-bearing strips away from the load-bearing shell are fixedly connected to the back plate, the bearing plate is fixedly connected between the two load-bearing strips, a bearing is provided on the bearing plate, the single-headed 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-headed 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;

[0010] The linkage assembly includes: a bevel gear, a first double-headed gear column, a second double-barrel gear column, a bearing plate, and a stepper motor; wherein, the bearing plate is arranged inside the grip housing, a bearing is provided on the bearing plate, the first double-headed gear column is fixedly connected to the inner ring of the bearing on the bearing plate, the stepper motor is arranged on the bearing plate, 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 meshes with one of the gears on the first double-headed gear column. The second double-barrel gear column is arranged inside the transmission housing, and one end of the second double-barrel gear column is movably connected to the transmission housing. Another gear on the first double-headed gear column meshes with one of the gears on the second double-barrel gear column, and another gear on the second double-barrel gear column meshes with the single-headed gear column;

[0011] The filtering 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, a U-shaped slot for connecting the plug-in frame is provided on the dust housing, 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 inserted into the U-shaped slot of the dust housing, and a number of filter holes for air circulation are provided on the filter sheet.

[0012] Preferably, through the coordinated use of the dust suction assembly, the linkage assembly, and the filtering assembly, when rough grinding the bridge concrete slab, the stepper motor is started. Then, the rotation of the stepper motor drives 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 gear. The second double-barrel gear column drives the single-headed gear column to rotate. When the single-headed gear column rotates, it drives the centrifugal housing to rotate. Then, the fan blades rotate to suck the dust generated during the grinding of the grinding disc into the centrifugal housing. The dust enters the dust outlet housing along the inner ring structure of the centrifugal housing. Then, the dust enters the dust housing through the dust outlet housing. After the dust enters the dust housing, it is retained in the dust housing by the blockage of the plug-in frame. When it is necessary to replace the plug-in frame, the plug-in state of the plug-in frame and the dust housing is released, and then the plug-in frame is taken out for cleaning and replacement.

[0013] Compared with the prior art, the beneficial effects that the present invention can achieve are:

[0014] 1. Through the coordinated use of the starting assembly, the reverse assembly, and the knocking assembly, when encountering an area with concentrated aggregates 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 area with concentrated aggregates and the cement matrix, weaken the aggregate matrix adhesion force, avoid repeated grinding of the area with concentrated aggregates, and improve the grinding efficiency.

[0015] 2. By the combined use of the starting component and the reversing component, when grinding the surface of the cement board, the grinding disc used can be switched according to the condition of the cement board surface through the cooperation of the starting column and the reverse card strip, promoting the reasonable distribution of the power required for grinding and avoiding waste of resources.

[0016] 3. By the combined use of the dust suction component and the filtering component, when grinding the cement board, the dust generated during grinding can be absorbed and filtered through the cooperation of the fan blades and the filter sheets, avoiding the large amount of dust generated during grinding from entering the air and affecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the grip shell structure of the present invention;

[0018] Figure 2 Schematic diagram of the transmission shell structure of the present invention;

[0019] Figure 3 Schematic diagram of the load-bearing shell structure of the present invention;

[0020] Figure 4 Schematic diagram of the first double-headed gear column structure of the present invention;

[0021] Figure 5 Schematic diagram of the bevel gear structure of the present invention;

[0022] Figure 6 Schematic diagram of the transmission shaft structure of the present invention;

[0023] Figure 7 Schematic diagram of the vibration transmission disc structure of the present invention;

[0024] Figure 8 Schematic diagram of the positioning column structure of the present invention;

[0025] Figure 9 Schematic diagram of the buffer disc structure of the present invention;

[0026] Figure 10 For the present invention Figure 9 Schematic diagram of the detailed structure at position A in;

[0027] Figure 11 Schematic diagram of the fixed disc structure of the present invention;

[0028] Figure 12 Schematic diagram of the centrifugal shell structure of the present invention;

[0029] Figure 13 Schematic diagram of the dust outlet shell structure of the present invention.

[0030] 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

[0031] 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.

[0032] Embodiment: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown in the figure, a rough grinding device for bridge concrete production includes a grip shell 1. One end of the grip 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 outside of the equipment shell 2 is fixedly connected to a transmission shell 4. The outside of the transmission shell 4 is fixedly connected to a load-bearing shell 5. There are two grinding discs 31 for grinding concrete slabs on the placement shell 3. The bottom of the placement shell 3 is fixedly connected to a bearing ring 6. There is a starting component for grinding the aggregate concentration area on the bearing ring 6. Inside the starting component, there are a starting column 9 and a reverse latch 22. With the cooperation of the starting column 9 and the reverse latch 22, the rotation speed of one of the grinding discs 31 can be reduced. There are two positioning columns 8 inside the starting component. One of the positioning columns 8 is provided with a fixing plate 15. There are two knocking components for generating vibration on the fixing plate 15. Inside the knocking component, there are a trigger block 18 and a telescopic block 26. With the cooperation of the trigger block 18 and the telescopic block 26, high-frequency vibration can be generated. There is a dust suction component on the load-bearing shell 5 for collecting the dust generated when grinding the concrete slab. There is a dust outlet shell 41 for controlling the outlet of the inhaled dust on the dust suction component. There is a filtering component for filtering dust on the dust outlet shell 41. There is a linkage component for connecting the equipment inside the placement shell 3;

[0033] When the grinding disc 31 encounters an aggregate concentration 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 concentration area and the cement matrix, weaken the aggregate matrix adhesion, avoid repeated grinding of the aggregate concentration area, and improve the grinding efficiency.

[0034] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11As shown in the figure, the starting component includes: a drive shaft 7, two positioning posts 8, a starting post 9, two positioning plates 10, a placement ring 11, two engaging posts 12, two rotating posts 13, a buffer plate 14, a fixing plate 15, two anti-falling blocks 16, a vibration transmission plate 17, and several trigger blocks 18; among them, a bearing is provided at the top of the placement shell 3, the drive shaft 7 is fixedly connected to the inner ring of the bearing on the placement shell 3, the outer side of the bearing ring 6 is fixedly connected corresponding to the two positioning posts 8 and the two positioning plates 10, the positioning post 8 is in an inverted L shape, and the two positioning posts 8 and the two positioning plates 10 are cross-distributed. The bottom of each positioning plate 10 is fixedly connected to the placement ring 11. A ring groove for connecting the rotating post 13 is provided at the bottom of the placement ring 11. The two rotating posts 13 are correspondingly inserted into the ring groove of the rotating post 13. The bottom of each rotating post 13 is fixedly connected to an engaging post 12 correspondingly. The two engaging posts 12 are both fixedly connected to a buffer plate 14, and the top of each engaging post 12 is fixedly connected to the top of the placement ring 11. A fixing plate 15 is fixedly connected to one of the positioning posts 8. One end corresponding to the bottom of the two positioning posts 8 is fixedly connected to an anti-falling block 16. An insertion ring for connecting the anti-falling block 16 is provided on the outer side of the vibration transmission plate 17. The two anti-falling blocks 16 are correspondingly inserted into the insertion ring of the vibration transmission plate 17. A number of trigger blocks 18 are provided at the corresponding ends of the buffer plate 14 and the vibration transmission plate 17, and the trigger blocks 18 on the buffer plate 14 and the vibration transmission plate 17 correspond to each other. The starting post 9 is inserted into the bearing ring 6;

[0035] When rough grinding of the bridge concrete slab is required, the drive shaft 7 rotates forward to drive the grinding disc 31 at the top of the placement shell 3 to rotate. Furthermore, when the drive shaft 7 rotates forward, it drives the starting post 9 to rotate. Furthermore, when the starting post 9 rotates forward, it pushes the two reverse clamping strips 22 towards the inside of the corresponding buffer plate 14 and the inside of the vibration transmission plate 17. Furthermore, when the reverse clamping strips 22 move, the first spring 21 stretches. Furthermore, first, a grinding disc 31 at the top of the placement shell 3 is used to perform normal rough grinding on the bridge concrete slab, so as to reduce the rotation speed of one grinding disc 31 when needed.

[0036] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11As shown in the figure, a reverse component for cooperating with the starting component is provided on both the buffer disk 14 and the vibration transmission disk 17; each reverse component includes: a receiving column 19, a rotating disk 20, a first spring 21, and a reverse catch strip 22; wherein, a hemispherical groove 53 for placing the rotating disk 20 is provided at the axial center positions of both the buffer disk 14 and the vibration transmission disk 17. Each receiving column 19 is fixedly corresponding in the hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration transmission disk 17. A rotating disk 20 is movably connected to each receiving column 19. A reverse catch strip 22 is fixedly connected to the outer side of each rotating disk 20 away from the hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration transmission disk 17. A long groove for the reverse catch strip 22 to fit is provided on the starting column 9. Each first spring 21 is arranged in the hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration transmission disk 17, and both ends of the two first springs 21 are fixed to the reverse catch strip 22 and the inner walls of the corresponding hemispherical groove 53 of the buffer disk 14 and the inner wall of the hemispherical groove 53 of the vibration transmission disk 17 respectively. One side corresponding to each reverse catch strip 22 is semi-circular. When the starting column 9 rotates forward, the semi-circular shape of the reverse catch strip 22 is pushed into the corresponding hemispherical groove 53 of the buffer disk 14 and the hemispherical groove 53 of the vibration transmission disk 17 under the drive of the long groove part of the starting column 9. When the starting column 9 rotates backward, the non-semicircular end of each reverse catch strip 22 fits with the long groove of the starting column 9;

[0037] When there is an aggregate concentration area on the surface of the bridge concrete slab, the transmission shaft 7 is rotated in the reverse direction. Then, when the transmission shaft 7 rotates, it drives the starting column 9 to rotate. When the starting column 9 rotates in the reverse direction to the position corresponding to the reverse catch strip 22, due to the long groove of the starting column 9 fitting with the reverse catch strip 22, when the starting column 9 rotates to the position of the long groove of the reverse catch strip 22, it drives the reverse catch strip 22 to revolve around the starting column 9. Then, when the two reverse catch strips 22 revolve, they drive the buffer disk 14 and the vibration transmission disk 17 to rotate. When the buffer disk 14 and the vibration transmission disk 17 rotate, several trigger blocks 18 on the buffer disk 14 and the vibration transmission disk 17 push the two telescopic blocks 26 towards the position of the telescopic cylinder 23. Then, the second spring 25 is compressed, realizing the reverse rotation of the starting column 9 when needed and further optimizing the grinding process.

[0038] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11As shown in the figure, each of the tapping components includes: a telescopic cylinder 23, a telescopic column 24, a second spring 25, a telescopic block 26 and a blocking piece 52; two telescopic cylinders 23 are fixedly connected to the corresponding positions on the fixed plate 15. A second spring 25 is arranged inside each telescopic cylinder 23, and both ends of each second spring 25 are fixedly connected to the inner wall of the telescopic cylinder 23 and the blocking piece 52 respectively. The blocking piece 52 is fixedly connected to the telescopic column 24. The second spring 25 is sleeved on the telescopic column 24. 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-circular. 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 in contact with the trigger blocks 18 on the buffer plate 14 and the trigger blocks 18 on the vibration transmission plate 17. A cavity plate 28 is fixedly connected to the bottom of the vibration transmission plate 17. There are two cavity plates 28 in total. And the other cavity plate 28 is fixedly connected to the top of the transmission shaft 7. A connecting piece 29 is fixedly connected to each cavity plate 28. An anti-splash plate 30 is fixedly connected to the outer ring of each connecting piece 29. An anti-splash strip 27 is fixedly connected to one end of each anti-splash plate 30 away from the connecting piece 29. Thread grooves for bolt 48 connection are arranged on each cavity plate 28, and the thread grooves on each cavity plate 28 penetrate through the cavities on the cavity plate 28. A fixing column 47 is arranged in the cavity of each cavity plate 28. Each fixing column 47 is inserted into the cavity of the corresponding cavity plate 28, and thread grooves are arranged on each fixing column 47. A bolt 48 is arranged on each cavity plate 28, and each bolt 48 is threadedly connected to the corresponding cavity plate 28 and the fixing column 47 inside the cavity plate 28 through the thread grooves on the cavity plate 28 and the thread grooves on the fixing column 47. Nuts 49 are threadedly connected to both ends of each bolt 48. A fixing disk 46 is fixedly connected to each fixing column 47. A grinding disk 31 is fixedly connected to each fixing disk 46.

[0039] When the trigger block 18 releases the limit on the telescopic block 26, the second spring 25 rebounds to drive the telescopic block 26 to tap the anti-falling block 16 to generate vibration. Then, when the vibration transmission plate 17 rotates, it drives the corresponding grinding disk 31 to rotate through the cavity plate 28. Then, the grinding disk 31 at the bottom of the vibration transmission plate 17 is used to roughly grind the aggregate concentration area on the bridge concrete slab. When it is necessary to replace the grinding disk 31, turn the nut 49 to release the threaded connection between the nut 49 and the bolt 48. Then, after turning the bolt 48, release the threaded connection state between the bolt 48 and the fixing column 47. Then, remove the grinding disk 31 for replacement. The vibration generated by the interaction between the telescopic block 26 and the trigger block 18 helps to break the concrete surface and improve the grinding efficiency.

[0040] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown in Figure 13 , a rough grinding device for bridge concrete production, the dust suction component includes: a single-headed 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-headed 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 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 between the two load-bearing bars 37, a bearing is provided on the bearing plate 36, the single-headed 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, and one end of the single-headed 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;

[0041] When rough grinding the bridge concrete slab, start the stepping motor 51, and then the rotation of the stepping motor 51 drives the first double-headed gear column 33 and the second double-barrel 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-barrel gear column 34 drives the single-headed gear column 35 to rotate. When the single-headed gear column 35 rotates, it drives the centrifugal shell 38 to rotate, and then the fan blade 39 rotates to suck the dust generated during the grinding of the grinding disc 31 into the centrifugal shell 38, which can collect the dust generated during the grinding process and keep the working environment clean.

[0042] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown in the figure, the linkage assembly includes: a bevel gear 32, a first double-headed gear column 33, a second double-cylinder gear column 34, a bearing plate 50, and a stepper motor 51; among them, the bearing plate 50 is arranged inside the grip housing 1, bearings are provided 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, and 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 meshes with one of the gears on the first double-headed gear column 33. The second double-cylinder gear column 34 is arranged inside the transmission housing 4, and one end of the second double-cylinder gear column 34 is movably connected to the transmission housing 4. Another gear on the first double-headed gear column 33 meshes with one of the gears on the second double-cylinder gear column 34, and another gear on the second double-cylinder gear column 34 meshes with the single-headed gear column 35. The filtering assembly includes: a dust housing 42, a plug-in frame 43, a filter sheet 44, and a handle 45; among them, 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 a number of filter holes for air circulation are provided on the filter sheet 44;

[0043] When dust enters the dust outlet housing 41 along the inner ring structure of the centrifugal housing 38, and then the dust enters the dust housing 42 through the dust outlet housing 41. After the dust enters the dust housing 42, it is retained in the dust housing 42 by the blockage of the plug-in frame 43. When it is necessary to replace the plug-in frame 43, the plug-in state of the plug-in frame 43 and the dust housing 42 is released, and then the plug-in frame 43 is taken out for cleaning and replacement, which can ensure the firm connection of all parts of the equipment and is convenient for maintenance and replacement of parts.

[0044] Working principle:

[0045] In the first step, when it is necessary to roughly grind the bridge concrete slab, the stepper motor 51 is started. Then, the rotation of the stepper motor 51 drives the first double-headed gear column 33 and the second double-cylinder gear column 34 to rotate. The forward rotation of the transmission shaft 7 drives the grinding disc 31 on the top of the placing shell 3 to rotate. Then, when the transmission shaft 7 rotates forward, it drives the starting column 9 to rotate. Then, when the starting column 9 rotates forward, it pushes the two reverse clamping strips 22 to move towards the inside of the corresponding buffer disc 14 and the inside of the vibration transmission disc 17. Then, when the reverse clamping strips 22 move, the first spring 21 is stretched. Then, a grinding disc 31 on the top of the placing shell 3 is first used to normally rough grind the bridge concrete slab;

[0046] Second step, when there is an aggregate concentration area on the surface of the bridge concrete slab, reverse-rotate the transmission shaft 7. Then, when the transmission shaft 7 rotates, it drives the starting column 9 to rotate. When the starting column 9 rotates reversely to the position corresponding to the reverse catch 22, since the long groove of the starting column 9 fits with the reverse catch 22, when the starting column 9 rotates to the position of the long groove of the reverse catch 22, it drives the reverse catch 22 to revolve around the starting column 9. Then, when the two reverse catches 22 revolve, they drive the buffer disc 14 and the vibration transmission disc 17 to rotate. When the buffer disc 14 and the vibration transmission disc 17 rotate, several trigger blocks 18 on the buffer disc 14 and the vibration transmission disc 17 push the two expansion blocks 26 towards the position of the expansion cylinder 23, and then the second spring 25 is compressed;

[0047] Third step, when the trigger block 18 releases the limit on the expansion block 26, the second spring 25 rebounds to drive the expansion block 26 to strike the anti-falling block 16 to generate vibration. Then, when the vibration transmission disc 17 rotates, it drives the corresponding grinding disc 31 to rotate through the cavity disc 28. Then, the grinding disc 31 at the bottom of the vibration transmission disc 17 roughly grinds the aggregate concentration area on the bridge concrete slab. When it is necessary to replace the grinding disc 31, rotate the nut 49 to release the threaded connection between the nut 49 and the bolt 48. Then, after rotating the bolt 48, release the threaded connection state between the bolt 48 and the fixed column 47, and then remove the grinding disc 31 for replacement;

[0048] Fourth step, when the first double-headed gear column 33 drives the transmission shaft 7 to rotate through the meshing bevel gear 32, the second double-barrel gear column 34 drives the single-headed gear column 35 to rotate. When the single-headed gear column 35 rotates, it drives the centrifugal housing 38 to rotate. Then, the fan blade 39 rotates to suck the dust generated during the grinding of the grinding disc 31 into the centrifugal housing 38;

[0049] Fifth step, when the dust enters the dust outlet housing 41 along the inner ring structure of the centrifugal housing 38, then the dust enters the dust loading housing 42 through the dust outlet housing 41. After the dust enters the dust loading housing 42, it is blocked by the insertion frame 43 and stays in the dust loading housing 42. When it is necessary to replace the insertion frame 43, release the insertion state between the insertion frame 43 and the dust loading housing 42, and then remove the insertion frame 43 for cleaning and replacement.

[0050] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the gist 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), 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 the positioning columns (8) is provided with a fixing plate (15), the fixing plate (15) is provided with two knocking assemblies for generating vibration, the inside of the knocking assembly is provided with a trigger block (18) and a telescopic block (26), The trigger block (18) and the telescopic block (26) can generate high-frequency vibration under the cooperation of each other. The load-bearing shell (5) is provided with a dust collecting component for collecting dust generated when grinding the concrete slab. The dust collecting component is provided with a dust outlet shell (41) for controlling the outlet of the sucked dust. The dust outlet shell (41) is provided with a filter component for filtering dust. The interior of the placement shell (3) is provided with a linkage component for connecting the device. The starting component comprises: a transmission shaft (7), two positioning columns (8), a starting column (9), two positioning sheets (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). A bearing is provided on the top of the placement shell (3), a 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), the two locking columns (12) are fixedly connected to a buffer disk (14), and each The top of the locking 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). The outer side of the vibration plate (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 plate (17). The buffer plate (14) and the vibration plate (17) are provided with a plurality of trigger blocks (18) at the corresponding ends, and the trigger blocks (18) on the buffer plate (14) and the vibration plate (17) correspond to each other. The starting column (9) is plugged into the carrying ring (6), and the buffer plate (14) and the vibration plate (17) are 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 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 end is fitted with the long groove of the starting column (9); Each striking assembly 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).

2. A rough grinding device for bridge concrete production according to claim 1, 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).

3. 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).

4. 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).

5. 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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