CN112844749A

CN112844749A - Crushing and screening all-in-one machine for concrete

Info

Publication number: CN112844749A
Application number: CN202110011518.5A
Authority: CN
Inventors: 谷新保; 吴帅涛
Original assignee: Nanyang Institute of Technology
Current assignee: Nanyang Institute of Technology
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-05-28

Abstract

The invention discloses a crushing and screening integrated machine for concrete, which comprises a supporting platform, wherein a crushing and screening mechanism and a concrete reprocessing mechanism are arranged on the supporting platform; the crushing and screening mechanism comprises a box body, a feed inlet with a large outside and a small inside is arranged above the box body, a crushing assembly is arranged in the box body, a vibrating screening assembly is arranged below the crushing assembly, a conveying assembly for conveying fine materials is arranged below the vibrating screening assembly, and a first outlet and a second outlet for the vibrating screening assembly and the conveying assembly to extend out are respectively formed in two sides of the box body; the concrete reprocessing mechanism comprises a rack, a displacement assembly is arranged at the top of the rack, a storage bin which is used for storing fine materials and is provided with an opening in the upper portion is connected to the operation end of the displacement assembly, an opening and closing door is arranged at the bottom of the storage bin, and a grinding assembly used for grinding the fine materials is arranged inside the rack. The invention can crush, screen and recycle the waste concrete, not only can play a role of protecting the environment, but also realizes the resource recycling, and has good economic benefit.

Description

Crushing and screening all-in-one machine for concrete

Technical Field

The invention relates to the technical field of building equipment, in particular to a crushing and screening integrated machine for concrete.

Background

The concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening. Concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; hardened, i.e. hardened concrete or concrete.

During the process of building removal, a large amount of hardened waste concrete can be generated, and the waste concrete becomes industrial waste to be discarded, so that the environment is polluted, and a large amount of land is occupied; nowadays, resources are increasingly exhausted, various resources are recycled, and waste concrete is a resource which can be recycled again and protects the environment. The waste concrete is generally piled in the empty space or deeply buried in the market, which not only pollutes the environment, but also wastes resources.

Therefore, there is a need in the market for an integrated crushing and screening machine for concrete, which solves the above problems in the prior art.

Disclosure of Invention

The invention aims to provide a crushing and screening integrated machine for concrete, which can crush, screen and recycle waste concrete, play a role in protecting environment, realize resource recycling and have good economic benefit.

In order to achieve the purpose, the invention provides the following technical scheme: a crushing and screening integrated machine for concrete comprises a supporting platform, wherein a crushing and screening mechanism and a concrete reprocessing mechanism are arranged on the supporting platform;

the crushing and screening mechanism comprises a box body, a feeding hole with a large outside and a small inside is arranged above the box body, a crushing assembly is arranged in the box body and positioned below the feeding hole, a vibrating screening assembly used for screening coarse materials and fine materials is arranged below the crushing assembly, a conveying assembly for conveying the fine materials is arranged below the vibrating screening assembly, the conveying directions of the vibrating screening assembly and the conveying assembly are opposite, and a first outlet and a second outlet for the vibrating screening assembly and the conveying assembly to extend out are respectively formed in two sides of the box body;

the concrete reprocessing mechanism comprises a rack, a displacement assembly is arranged at the top of the rack, a storage bin which is used for storing fine materials and is provided with an opening in the upper portion is connected to the operation end of the displacement assembly, an opening and closing door is arranged at the bottom of the storage bin, and a grinding assembly used for grinding the fine materials is arranged inside the rack.

Through adopting above-mentioned technical scheme, put into the feed inlet in the broken screening mechanism in order with the concrete of sclerosis, the hardened concrete is smashed by broken subassembly after entering into the box of broken screening mechanism inside, and the concrete fragment falls to the vibration screening subassembly that is located broken subassembly below and carries out the vibration screening, and its in-process coarse fodder is sent out by the first export through the vibration screening subassembly, and the fine material is shaken off to taking on the conveying subassembly and is sent out by the second export. The displacement assembly of the concrete reprocessing mechanism firstly displaces the storage bin to the second outlet to receive fine materials, the displacement assembly displaces the storage bin into the rack after the storage bin is filled with the fine materials, the opening and closing door at the bottom of the storage bin is opened after the fine materials are stabilized to place the fine materials into the grinding assembly, the grinding assembly is utilized to grind the fine materials, and the concrete is recycled after grinding. Therefore, the invention can crush, screen and recycle the waste concrete, not only can play a role of protecting the environment, but also realizes the resource recycling, and has good economic benefit.

The crushing assembly comprises a group of first crushing pieces and two groups of second crushing pieces, the structures of the first crushing pieces and the second crushing pieces are the same, the first crushing pieces comprise transmission shafts and crushing teeth, the transmission shafts are rotatably arranged on the inner wall of the box body, the transmission shafts are connected with mounting rollers in a linkage mode, clamping grooves in bulb shapes are formed in the side walls of the mounting rollers along the axial direction, clamping portions matched with the clamping grooves are arranged on the crushing teeth, supporting portions abutting against the two sides of the crushing teeth are arranged on the mounting rollers, and the transmission shafts of the first crushing pieces are connected with first driving motors.

Through adopting above-mentioned technical scheme, not only easy dismounting does benefit to equipment in earlier stage and subsequent maintenance, and crushing strength is high moreover, can effectively carry out crushing operation with the hardened concrete.

The invention is further arranged in such a way that a first counterattack component and a second counterattack component are respectively arranged at the positions, positioned at the two sides of the two groups of second crushing pieces, in the box body, the first counterattack component comprises a triangular supporting seat arranged on the inner wall of the box body, and a first counterattack plate with the sawtooth-shaped outer side is arranged on the triangular supporting seat; the second counterattack subassembly includes first cylinder, first cylinder is installed on the box, and the end that stretches out of first cylinder is connected with the counterattack supporting seat that sets up inside the box, install the second counterattack board that the outside is the cockscomb structure on the counterattack supporting seat, the inboard of second counterattack board is equipped with the constant head tank, be equipped with on the counterattack supporting seat with the location arch that the constant head tank agrees with mutually.

Through adopting above-mentioned technical scheme, during crushing operation, partial concrete piece can sputter first counterattack subassembly and second counterattack subassembly and do, and first counterattack subassembly and second counterattack subassembly do and act on this concrete piece and carry out further breakage to it to improve the crushing effect to hardened concrete, improve the recycle ratio of abandonment concrete.

The invention is further provided that the displacement assembly comprises a slide rail, a slide plate, a linear motor, a main shaft, an upper connecting plate, a lower connecting plate, a second cylinder and a third cylinder, the slide rail is arranged at the top of the frame, the linear motor is arranged at one end of the slide rail, and the output end of the linear motor is connected with the slide plate and drives the slide plate to move along the extension direction of the slide rail; the upper connecting plate is arranged on the upper portion of the main shaft, the lower connecting plate is sleeved in the middle of the main shaft, the second air cylinder is arranged on the sliding plate, the extending end of the second air cylinder is connected with the lower connecting plate, the third air cylinder is arranged on the upper connecting plate, the extending end of the third air cylinder is also connected with the lower connecting plate, a sleeve is axially arranged inside the storage bin, the lower portion of the main shaft is arranged in the sleeve in a penetrating mode, and the lower portion of the main shaft is in interference fit with the sleeve.

Through adopting above-mentioned technical scheme, can carry out diversified displacement to the storage storehouse through operation linear electric motor, second cylinder and third cylinder, with its accurate and quick displacement to corresponding operation station, it is very convenient to operate.

The invention is further provided that a fourth cylinder is installed at the top end of the main shaft, a connecting rod is arranged inside the main shaft in a sliding mode along the axial direction, the upper end of the connecting rod is connected with the extending end of the fourth cylinder, the lower end of the connecting rod extends out of the main shaft and is connected with the opening and closing door, the lower part of the storage bin is in a horn mouth shape with a large upper part and a small lower part, a discharging opening is formed in the lower part of the storage bin, the opening and closing door is in a frustum shape with a small upper part and a large lower part, and a sealing gasket which is in sealing fit with the.

Through adopting above-mentioned technical scheme, through the lift of fourth cylinder drive switching door, realize opening and close of storage bin lower part feed opening, and then realize the automatic unloading function in storage bin.

The grinding assembly comprises an outer barrel and an inner barrel arranged in the outer barrel, a pressure bearing part is arranged on the inner wall of the inner barrel, a grinding cavity is arranged in the pressure bearing part, a water inlet pipe extending into the grinding cavity is mounted on the outer barrel, a second driving motor is mounted at the bottom of the grinding cavity, a motor shaft of the second driving motor is connected with a grinding body, the top end and the bottom end of the grinding body are respectively in a cone shape protruding upwards and protruding downwards, an overflowing gap with gradually reduced distance from top to bottom is formed between the inner wall of the grinding cavity and the outer wall of the grinding body, and balls in spiral distribution are further arranged on the outer wall of the grinding body; the bottom of grinding the chamber still is equipped with the support ring, installs the toper baffle of upwards uplift on the support ring, installs the toper overflow board of downwards uplift on the toper baffle, sets up big-end-up's overflow hole on the toper overflow board, second driving motor's motor shaft runs through toper baffle and toper overflow board, form the overflow chamber between toper baffle and the toper overflow board, the bottom of inner tube is equipped with the atmospheric discharging pipe of intercommunication, be equipped with on the bearing portion even through the passageway that overflows of flow chamber and discharging pipe.

Through adopting above-mentioned technical scheme, by the rotation of second driving motor drive rinding body, add water and grind the concrete fine material, make its concrete that reforms plastic state, and this structural design can make inside concrete rely on self gravity whereabouts and flow from the discharging pipe, has the difficult advantage that produces the jam and pile up.

The invention is further arranged in such a way that a heat-insulating filling layer is arranged between the outer barrel and the inner barrel, a water storage cavity coated outside the inner barrel is arranged in the heat-insulating filling layer, and the upper part of the water storage cavity is provided with a water inlet port communicated with the atmosphere.

Through adopting above-mentioned technical scheme, fill hot water in the water storage chamber, the cooperation keeps warm in the concrete grinding process again on the filling layer that keeps warm, avoids it to take place to condense, makes it keep the plastic state before the play discharging pipe all the time.

The invention is further arranged in such a way that a backflow cylinder is arranged between the inner cylinder and the outer cylinder, the bottom of the backflow cylinder is communicated with a discharge pipe, the outer end of the discharge pipe is provided with an opening and closing valve, the top end of the backflow cylinder is provided with a third driving motor, a motor shaft of the third driving motor penetrates through the top of the backflow cylinder and extends into the backflow cylinder and is connected with a driving shaft, the driving shaft is axially provided with a helical blade, the outer edge of the helical blade is attached to the inner wall of the backflow cylinder, and the upper part of the backflow cylinder is provided with a backflow pipe communicating the inner cavity of the backflow cylinder with.

Through adopting above-mentioned technical scheme, when closing the on-off valve, start third driving motor, third driving motor's motor shaft drives the drive shaft and rotates, and then drives helical blade and rotate, and helical blade produces the negative pressure, with the concrete backward flow of discharging pipe first half section to grinding the chamber in, grinds it once more, can improve the grinding effect to the concrete.

The grinding body is further provided with a stepped hole along the radial direction, a locking screw penetrates through the stepped hole, the screw rod part of the locking screw is rotatably connected to the side part of the motor shaft of the second driving motor, the screw cap part of the locking screw abuts against the step of the stepped hole, a sealing plug is further inserted into the stepped hole, the inner end of the sealing plug abuts against the screw cap part of the locking screw, and the shape of the outer end of the sealing plug is matched with the shape of the side part of the grinding body.

Through adopting above-mentioned technical scheme, can not only realize the high-speed joint of rinding body and second driving motor shaft, the design of sealed end cap can prevent effectively that the concrete from entering into the shoulder hole and causing the jam of shoulder hole moreover to convenient subsequent maintenance operation.

The invention is further provided that the top end of the inner cylinder is provided with a supporting flange, and the supporting flange is provided with a sealing ring which is used for forming sealing fit with the lower connecting plate.

Through adopting above-mentioned technical scheme, when storage storehouse was put into the inner tube, the support flange of lower connecting plate and inner tube was laminated mutually, and concrete fines spills to the inner tube outside and causes the pollution when can avoiding transferring concrete fines.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of the crushing and screening mechanism of the present invention;

FIG. 3 is a schematic view of the construction of the concrete reprocessing mechanism of the present invention;

FIG. 4 is a schematic view of an abrasive assembly according to the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

In the figure: 1. a support platform; 2. a crushing and screening mechanism; 3. a concrete reprocessing mechanism; 4. a box body; 5. a feed inlet; 6. a crushing assembly; 7. a vibratory screen assembly; 8. a belt transfer assembly; 9. a first outlet; 10. a second outlet; 11. a frame; 12. a displacement assembly; 13. a storage bin; 14. opening and closing the door; 15. a grinding assembly; 16. a first crushing member; 17. a second crushing member; 18. a drive shaft; 19. crushing teeth; 20. mounting a roller; 21. a card slot; 22. a clamping part; 23. a support portion; 24. a first drive motor; 25. a first reaction component; 26. a second reaction component; 27. a triangular support seat; 28. a first reaction plate; 29. a first cylinder; 30. counterattack supporting seat; 31. positioning a groove; 32. positioning the projection; 33. a slide rail; 34. a slide plate; 35. a linear motor; 36. a main shaft; 37. an upper connecting plate; 38. a lower connecting plate; 39. a second cylinder; 40. a third cylinder; 41. a sleeve; 42. a fourth cylinder; 43. a connecting rod; 44. a feeding port; 45. a gasket; 46. an outer cylinder; 47. an inner barrel; 48. a pressure-bearing portion; 49. a grinding chamber; 50. a water inlet pipe; 51. a second drive motor; 52. a grinding body; 53. an over-current gap; 54. a support ring; 55. a conical partition plate; 56. a conical overflow plate; 57. an overflowing hole; 58. a flow-through chamber; 59. a discharge pipe; 60. an overflow channel; 61. a heat-insulating filling layer; 62. a water storage cavity; 63. a water inlet interface; 64. a reflux drum; 65. opening and closing a valve; 66. a third drive motor; 67. a drive shaft; 68. a helical blade; 69. a return pipe; 70. a stepped hole; 71. locking screws; 72. sealing the plug; 73. a support flange; 74. a seal ring; 75. a second reaction plate; 76. and a ball.

Detailed Description

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

Example (b): the invention provides a crushing and screening integrated machine for concrete, which comprises a supporting platform 1, wherein a crushing and screening mechanism 2 and a concrete reprocessing mechanism 3 are arranged on the supporting platform 1, as shown in attached figures 1-5;

the crushing and screening mechanism 2 comprises a box body 4, a feeding hole 5 with a large outside and a small inside is arranged above the box body 4, a crushing component 6 is arranged in the box body 4 and below the feeding hole 5, a vibrating screening component 7 for screening coarse materials and fine materials is arranged below the crushing component 6 (the vibrating screening component 7 is a vibrating screening machine with a conveying belt, is easy to purchase in the market and is the prior art, and therefore the detailed structure of the vibrating screening component is not described in detail herein), a conveying fine material belt conveying component 8 (the belt conveying component 8 is a conventional belt conveying component) is arranged below the vibrating screening component 7, the conveying directions of the vibrating screening component 7 and the belt conveying component 8 are opposite, and a first outlet 9 and a second outlet 10 for extending out of the vibrating screening component 7 and the belt conveying component 8 are respectively arranged on two sides of the box body 4;

the concrete reprocessing mechanism 3 comprises a frame 11, a displacement assembly 12 is arranged at the top of the frame 11, a storage bin 13 which is used for storing fine materials and is provided with an opening at the upper part is connected to the operating end of the displacement assembly 12, an opening and closing door 14 is arranged at the bottom of the storage bin 13, and a grinding assembly 15 which is used for grinding the fine materials is arranged inside the frame 11.

As shown in fig. 2, the crushing assembly 6 includes a set of first crushing members 16 and two sets of second crushing members 17, the first crushing members 16 and the second crushing members 17 have the same structure, the specification of the second crushing members 17 is smaller than that of the first crushing members 16, the first crushing members 16 include transmission shafts 18 and crushing teeth 19, the transmission shafts 18 are rotatably disposed on the inner wall of the box 4, the transmission shafts 18 are connected with mounting rollers 20 in a linkage manner, clamping grooves 21 in a bulb shape are axially formed in the side walls of the mounting rollers 20, clamping portions 22 engaged with the clamping grooves 21 are formed on the crushing teeth 19, supporting portions 23 abutting against two sides of the crushing teeth 19 are formed on the mounting rollers 20, and the transmission shafts 18 of the first crushing members 16 are connected with first driving motors 24. This design is easy dismounting not only, does benefit to equipment and subsequent maintenance in earlier stage, and crushing strength is high moreover, can effectively carry out the crushing operation with hardened concrete.

As shown in fig. 2, a first counterattack component 25 and a second counterattack component 26 are respectively arranged at positions on two sides of two groups of second crushing members 17 in the box body 4, the first counterattack component 25 comprises a triangular supporting seat 27 mounted on the inner wall of the box body 4, and a first counterattack plate 28 with a sawtooth-shaped outer side is mounted on the triangular supporting seat 27; the second impact component 26 comprises a first cylinder 29, the first cylinder 29 is installed on the box body 4, the extending end of the first cylinder 29 is connected with an impact support seat 30 arranged inside the box body 4, a second impact plate 75 with the outer side being in a sawtooth shape is installed on the impact support seat 30, a positioning groove 31 is arranged on the inner side of the second impact plate 75, and a positioning bulge 32 matched with the positioning groove 31 is arranged on the impact support seat 30. During the broken operation, partial concrete piece can sputter first counterattack subassembly 25 and second counterattack subassembly 26 and do, and first counterattack subassembly 25 and second counterattack subassembly 26 do and act on this concrete piece and carry out further breakage to it to improve the crushing effect to hardened concrete, improve the recycle who abandons the concrete.

As shown in fig. 3, the displacement assembly 12 includes a slide rail 33, a slide plate 34, a linear motor 35, a main shaft 36, an upper connecting plate 37, a lower connecting plate 38, a second air cylinder 39 and a third air cylinder 40, the slide rail 33 is mounted at the top of the frame 11, the linear motor 35 is mounted at one end of the slide rail 33, and an output end of the linear motor 35 is connected to the slide plate 34 and drives the slide plate 34 to move along the extending direction of the slide rail 33; the upper connecting plate 37 is mounted on the upper portion of the main shaft 36, the lower connecting plate 38 is sleeved in the middle of the main shaft 36, the second air cylinder 39 is mounted on the sliding plate 34, the extending end of the second air cylinder 39 is connected with the lower connecting plate 38, the third air cylinder 40 is mounted on the upper connecting plate 37, the extending end of the third air cylinder 40 is also connected with the lower connecting plate 38, a sleeve 41 is axially arranged inside the storage bin 13, the lower portion of the main shaft 36 is arranged in the sleeve 41 in a penetrating mode, and the lower portion of the main shaft 36 is in interference fit with the sleeve 41. The storage bin 13 can be displaced in multiple directions by operating the linear motor 35, the second air cylinder 39 and the third air cylinder 40, and can be accurately and quickly displaced to a corresponding operation station, so that the operation is very convenient.

As shown in fig. 3, a fourth cylinder 42 is installed at the top end of the main shaft 36, a connecting rod 43 is arranged inside the main shaft 36 in a sliding manner along the axial direction, the upper end of the connecting rod 43 is connected with the extending end of the fourth cylinder 42, the lower end of the connecting rod 43 extends out of the main shaft 36 and is connected with the opening and closing door 14, the lower part of the storage bin 13 is in a bell mouth shape with a large upper part and a small lower part, a discharge opening 44 is formed in the lower part of the storage bin 13, the opening and closing door 14 is in a frustum shape with a small upper part and a large lower part, and a sealing gasket 45 which forms a sealing fit. The opening and closing door 14 is driven to lift through the fourth air cylinder 42, so that the opening and closing of the feed opening 44 at the lower part of the storage bin 13 are realized, and the automatic feeding function of the storage bin 13 is realized.

As shown in fig. 4, the grinding assembly 15 includes an outer cylinder 46 and an inner cylinder 47 disposed inside the outer cylinder 46, a pressure-bearing portion 48 is disposed on an inner wall of the inner cylinder 47, a grinding cavity 49 is disposed in the pressure-bearing portion 48, a water inlet pipe 50 extending into the grinding cavity 49 is mounted on the outer cylinder 46, a second driving motor 51 is mounted at the bottom of the grinding cavity 49, a motor shaft of the second driving motor 51 is connected with a grinding body 52, the top end and the bottom end of the grinding body 52 are respectively in a cone shape bulging upward and bulging downward, a flow-through gap 53 whose distance gradually decreases from top to bottom is formed between the inner wall of the grinding cavity 49 and the outer wall of the grinding body 52, and balls 76 distributed spirally are further disposed on the outer wall; the bottom of the grinding cavity 49 is further provided with a support ring 54, the support ring 54 is provided with an upward-bulging conical partition plate 55, the conical partition plate 55 is provided with a downward-bulging conical overflow plate 56, the conical overflow plate 56 is provided with an overflow hole 57 with a large upper part and a small lower part, a motor shaft of the second driving motor 51 penetrates through the conical partition plate 55 and the conical overflow plate 56, an overflow cavity 58 is formed between the conical partition plate 55 and the conical overflow plate 56, the bottom of the inner cylinder 47 is provided with a discharge pipe 59 communicated with the atmosphere, and the pressure bearing part 48 is provided with an overflow channel 60 connected with the flow cavity 58 and the discharge pipe 59. The grinding body 52 is driven to rotate by the second driving motor 51, water is added, concrete fine materials are ground, the concrete in a plastic state is formed again, the internal concrete can fall by means of self gravity and flow out of the discharge pipe 59 through the structural design, and the advantage that blocking and accumulation are not prone to occurring is achieved.

As shown in fig. 4, a heat insulating filling layer 61 is arranged between the outer cylinder 46 and the inner cylinder 47, a water storage cavity 62 coated outside the inner cylinder 47 is arranged in the heat insulating filling layer 61, and a water inlet 63 communicated with the atmosphere is arranged at the upper part of the water storage cavity 62. The water storage cavity 62 is filled with hot water, and the heat preservation filling layer 61 is matched to preserve heat in the concrete grinding process, so that the concrete is prevented from being condensed, and the concrete is always kept in a plastic state before flowing out of the discharge pipe 59.

As shown in fig. 4, a backflow cylinder 64 is further disposed between the inner cylinder 47 and the outer cylinder 46, the bottom of the backflow cylinder 64 is communicated with the discharge pipe 59, the outer end of the discharge pipe 59 is provided with an opening and closing valve 65, the top end of the backflow cylinder 64 is provided with a third driving motor 66, a motor shaft of the third driving motor 66 penetrates through the top of the backflow cylinder 64 to extend into the backflow cylinder 64 and is connected with a driving shaft 67, a helical blade 68 is axially disposed on the driving shaft 67, the outer edge of the helical blade 68 is attached to the inner wall of the backflow cylinder 64, and the upper portion of the backflow cylinder 64 is provided with a backflow pipe 69 communicating the inner cavity of the backflow cylinder 64 with the grinding. When the opening and closing valve 65 is closed, the third driving motor 66 is started, the motor shaft of the third driving motor 66 drives the driving shaft 67 to rotate, and further drives the helical blade 68 to rotate, the helical blade 68 generates negative pressure, the concrete at the front half section of the discharge pipe 59 flows back to the grinding cavity 49, the concrete is ground again, and the grinding effect on the concrete can be improved.

As shown in fig. 5, a stepped hole 70 is radially formed in the grinding body 52, a locking screw 71 is inserted into the stepped hole 70, a screw portion of the locking screw 71 is rotatably connected to a motor shaft side portion of the second driving motor 51, a nut portion of the locking screw 71 abuts against a step of the stepped hole 70, a sealing plug 72 is further inserted into the stepped hole 70, an inner end of the sealing plug 72 abuts against a nut portion of the locking screw 71, and an outer end shape of the sealing plug 72 is matched with a side shape of the grinding body 52. The design can not only realize the quick connection between the grinding body 52 and the motor shaft of the second driving motor 51, but also effectively prevent the concrete from entering the stepped hole 70 to block the stepped hole 70 due to the design of the sealing plug 72, thereby facilitating the subsequent maintenance operation.

As shown in fig. 4, a supporting flange 73 is provided at the top end of the inner cylinder 47, and a sealing ring 74 for forming a sealing engagement with the lower connecting plate 38 is provided on the supporting flange 73. When the storage bin 13 is placed in the inner cylinder 47, the lower connecting plate 38 is attached to the supporting flange 73 of the inner cylinder 47, so that the phenomenon that the fine concrete splashes out of the inner cylinder 47 to cause pollution when the fine concrete is placed can be avoided.

The working principle is as follows: hardened concrete is orderly placed into a feeding hole 5 in a crushing and screening mechanism 2, the hardened concrete is crushed by a crushing component 6 after entering a box body 4 of the crushing and screening mechanism 2, concrete fragments fall on a vibrating screening component 7 positioned below the crushing component 6 for vibrating screening, in the process, coarse materials are sent out from a first outlet 9 through the vibrating screening component 7, and fine materials are shaken off to a belt conveying component 8 and sent out from a second outlet 10. The displacement assembly 12 of the concrete reprocessing mechanism 3 firstly displaces the storage bin 13 to the second outlet 10 to receive the fine materials, after the storage bin 13 is filled with the fine materials, the displacement assembly 12 displaces the storage bin 13 into the rack 11, after the fine materials are stabilized, the opening and closing door 14 at the bottom of the storage bin 13 is opened to place the fine materials into the grinding assembly 15, the fine materials are ground by the grinding assembly 15, and the concrete is recycled after grinding. Therefore, the invention can crush, screen and recycle the waste concrete, not only can play a role of protecting the environment, but also realizes the resource recycling, and has good economic benefit.

Claims

1. The utility model provides a crushing and screening all-in-one that concrete was used which characterized in that: comprises a supporting platform (1), wherein the supporting platform (1) is provided with a crushing and screening mechanism (2) and a concrete reprocessing mechanism (3);

the crushing and screening mechanism (2) comprises a box body (4), a feeding hole (5) with a large outside and a small inside is arranged above the box body (4), a crushing component (6) is arranged in the box body (4) and is positioned below the feeding hole (5), a vibrating screening component (7) for screening coarse materials and fine materials is arranged below the crushing component (6), a conveying component (8) for conveying fine materials is arranged below the vibrating screening component (7), the conveying directions of the vibrating screening component (7) and the conveying component (8) are opposite, and a first outlet (9) and a second outlet (10) for the vibrating screening component (7) and the conveying component (8) to extend out are respectively arranged on two sides of the box body (4);

the concrete reprocessing mechanism (3) comprises a rack (11), wherein a displacement assembly (12) is arranged at the top of the rack (11), a storage bin (13) which is used for storing fine materials and is provided with an opening at the upper part is connected to the operation end of the displacement assembly (12), an opening and closing door (14) is arranged at the bottom of the storage bin (13), and a grinding assembly (15) which is used for grinding the fine materials is arranged inside the rack (11).

2. A crushing and screening all-in-one machine for concrete according to claim 1, characterized in that: broken subassembly (6) are including a set of first broken piece (16) and two sets of second broken piece (17), first broken piece (16) is the same with the structure of second broken piece (17), first broken piece (16) are including transmission shaft (18) and broken tooth (19), transmission shaft (18) rotate to set up on box (4) inner wall, and linkage connection has installation roller (20) on transmission shaft (18), offers along the axial on installation roller (20) lateral wall to be bulb-shaped draw-in groove (21), be equipped with joint portion (22) that agree with mutually with draw-in groove (21) on broken tooth (19), be equipped with on installation roller (20) and support portion (23) of propping in broken tooth (19) both sides, transmission shaft (18) of first broken piece (16) are connected with first driving motor (24).

3. A crushing and screening all-in-one machine for concrete according to claim 2, characterized in that: a first counterattack component (25) and a second counterattack component (26) are respectively arranged at the positions, located at the two sides of the two groups of second crushing pieces (17), in the box body (4), the first counterattack component (25) comprises a triangular supporting seat (27) arranged on the inner wall of the box body (4), and a first counterattack plate (28) with the outer side being in a sawtooth shape is arranged on the triangular supporting seat (27); second counterattack subassembly (26) include first cylinder (29), install on box (4) first cylinder (29), the end that stretches out of first cylinder (29) is connected with the counterattack supporting seat (30) of setting in box (4) inside, install on counterattack supporting seat (30) the outside and be jagged second counterattack board (75), the inboard of second counterattack board (75) is equipped with constant head tank (31), be equipped with on counterattack supporting seat (30) with location arch (32) that constant head tank (31) agreed with mutually.

4. A crushing and screening all-in-one machine for concrete according to claim 1, characterized in that: the displacement assembly (12) comprises a sliding rail (33), a sliding plate (34), a linear motor (35), a main shaft (36), an upper connecting plate (37), a lower connecting plate (38), a second air cylinder (39) and a third air cylinder (40), the sliding rail (33) is installed at the top of the rack (11), the linear motor (35) is installed at one end of the sliding rail (33), and the output end of the linear motor (35) is connected with the sliding plate (34) and drives the sliding plate (34) to move along the extending direction of the sliding rail (33); the upper connecting plate (37) is mounted on the upper portion of the main shaft (36), the lower connecting plate (38) is sleeved in the middle of the main shaft (36), the second air cylinder (39) is mounted on the sliding plate (34), the extending end of the second air cylinder (39) is connected with the lower connecting plate (38), the third air cylinder (40) is mounted on the upper connecting plate (37), the extending end of the third air cylinder (40) is also connected with the lower connecting plate (38), a sleeve (41) is axially arranged inside the storage bin (13), the lower portion of the main shaft (36) penetrates through the sleeve (41), and the lower portion of the main shaft (36) is in interference fit with the sleeve (41).

5. A crushing and screening all-in-one machine for concrete according to claim 4, characterized in that: fourth cylinder (42) are installed on the top of main shaft (36), and the inside of main shaft (36) is provided with connecting rod (43) along endwise slip, and the upper end of connecting rod (43) is connected with the end that stretches out of fourth cylinder (42), and the lower extreme of connecting rod (43) stretches out main shaft (36) and is connected with opening and closing door (14), the lower part of storage bin (13) is big-end-up's horn mouth shape, and feed opening (44) have been seted up to the lower part of storage bin (13), opening and closing door (14) are big-end-up's frustum shape, open and close and install on door (14) and constitute sealed complex sealed pad (45) with feed opening (44) lateral wall.

6. A crushing and screening all-in-one machine for concrete according to claim 1, characterized in that: the grinding assembly (15) comprises an outer cylinder (46) and an inner cylinder (47) arranged inside the outer cylinder (46), a bearing part (48) is arranged on the inner wall of the inner cylinder (47), a grinding cavity (49) is arranged in the bearing part (48), a water inlet pipe (50) extending into the grinding cavity (49) is mounted on the outer cylinder (46), a second driving motor (51) is mounted at the bottom of the grinding cavity (49), a motor shaft of the second driving motor (51) is connected with a grinding body (52), the top end and the bottom end of the grinding body (52) are respectively in a conical shape protruding upwards and protruding downwards, an overflowing gap (53) with gradually reduced distance from top to bottom is formed between the inner wall of the grinding cavity (49) and the outer wall of the grinding body (52), and balls (76) distributed spirally are further arranged on the outer wall of the grinding body (52); the bottom of grinding chamber (49) still is equipped with support ring (54), installs upwards uplifted toper baffle (55) on support ring (54), installs downwards uplifted toper overflow board (56) on toper baffle (55), has seted up big-end-up overflow hole (57) on toper overflow board (56), the motor shaft of second driving motor (51) runs through toper baffle (55) and toper overflow board (56), form overflow chamber (58) between toper baffle (55) and toper overflow board (56), the bottom of inner tube (47) is equipped with communicating atmospheric discharging pipe (59), be equipped with overflow channel (60) even through overflow chamber (58) and discharging pipe (59) on bearing portion (48).

7. A crushing and screening all-in-one machine for concrete according to claim 6, characterized in that: be equipped with heat preservation filling layer (61) between urceolus (46) and inner tube (47), be equipped with water storage chamber (62) of cladding in inner tube (47) outside in heat preservation filling layer (61), the upper portion in water storage chamber (62) is equipped with intercommunication atmospheric water inlet (63).

8. A crushing and screening all-in-one machine for concrete according to claim 6, characterized in that: still be equipped with backward flow section of thick bamboo (64) between inner tube (47) and urceolus (46), the bottom and discharging pipe (59) of backward flow section of thick bamboo (64) are linked together, the outer end of discharging pipe (59) is equipped with on-off valve (65), third driving motor (66) are installed on the top of backward flow section of thick bamboo (64), the motor shaft of third driving motor (66) runs through the top of backward flow section of thick bamboo (64) and stretches into backward flow section of thick bamboo (64) in and is connected with drive shaft (67), be provided with helical blade (68) along the axial on drive shaft (67), the outward flange of helical blade (68) is laminated with the inner wall of backward flow section of thick bamboo (64) mutually, the upper portion of backward flow section of thick bamboo (64) be equipped with intercommunication backward flow section of thick bamboo.

9. A crushing and screening all-in-one machine for concrete according to claim 6, characterized in that: the grinding body (52) is provided with a stepped hole (70) along the radial direction, a locking screw (71) penetrates through the stepped hole (70), the screw rod portion of the locking screw (71) is rotatably connected to the side portion of a motor shaft of the second driving motor (51), the nut portion of the locking screw (71) abuts against the step of the stepped hole (70), a sealing plug (72) is further inserted into the stepped hole (70), the inner end of the sealing plug (72) abuts against the nut portion of the locking screw (71), and the outer end shape of the sealing plug (72) is matched with the side portion shape of the grinding body (52).

10. A crushing and screening all-in-one machine for concrete according to claim 1, characterized in that: the top end of the inner cylinder (47) is provided with a supporting flange (73), and the supporting flange (73) is provided with a sealing ring (74) which is used for forming sealing fit with the lower connecting plate (38).