CN113385255A

CN113385255A - Construction waste crushing and screening device

Info

Publication number: CN113385255A
Application number: CN202110661912.3A
Authority: CN
Inventors: 丁军
Original assignee: Individual
Current assignee: Shanghai Xiaoqi New Energy Technology Group Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-09-14
Anticipated expiration: 2041-06-15
Also published as: CN113385255B

Abstract

The invention relates to the technical field of construction waste treatment, and discloses a construction waste crushing and screening device which comprises a crushing box and a screening box, wherein the bottom of the crushing box is fixedly connected with an installation side plate at a position close to the right side, the bottom of the installation side plate is fixedly connected with a supporting leg at a position close to the front side, the top of the crushing box is provided with a feed opening at the middle position, the top of the crushing box is fixedly connected with a feed hopper at a position outside the feed opening, and the front side wall of the crushing box is fixedly connected with a power motor at a position slightly left from the middle. This broken screening plant of building rubbish has improved broken efficiency through the cubic mode broken step by step, and the screen cloth that conveying guide arm, preceding sieve pole and back sieve pole are constituteed can remove when screening to improved the efficiency of screening, prevented to take place to block up, and conveying guide arm can rotate the bold building rubbish of screening to the left side discharge during the screening, prevents to influence screening efficiency.

Description

Construction waste crushing and screening device

Technical Field

The invention relates to the technical field of construction waste treatment, in particular to a construction waste crushing and screening device.

Background

Waste gas building can produce a large amount of building rubbish when demolising, building rubbish generally directly carries out the landfill processing, direct landfill wasting resources, and building rubbish is piling up and the landfill in-process, because fermentation and the eluviation of rainwater, erode, and the surface water and the soaking of groundwater and the sewage filtration liquid or leachate that percolates out, can cause the serious pollution of surface water and groundwater on every side, be unfavorable for the environmental protection, building rubbish can carry out recycle through kibbling mode, general reducing mechanism is poor to building rubbish crushing effect, kibbling building rubbish screening degree of difficulty is high, the efficiency of screening is low, the easy jam that appears in the screening process, and the wearing and tearing to the screen cloth are big in the screening process, damage appears easily in the screening plant, bring inconvenience for the screening.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a construction waste crushing and screening device, which solves the problems of poor crushing effect and high screening difficulty of construction waste.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a construction waste crushing and screening device comprises a crushing box and a screening box, wherein a position at the bottom of the crushing box and positioned at the right side is fixedly connected with an installation side plate, a position at the bottom of the installation side plate and positioned at the front side is fixedly connected with a supporting leg, a feeding port is formed in the top of the crushing box and positioned at the middle position, a feeding hopper is fixedly connected at the top of the crushing box and positioned at the outer side of the feeding port, a power motor is fixedly connected at the position at the front side wall of the crushing box and positioned at the left side of the middle part, a main crushing roller is rotatably connected at the position at the front side inner wall of the crushing box and positioned right to the power motor through a bearing, crushing teeth are fixedly connected to the outer wall of the main crushing roller, the output end of the power motor penetrates through the crushing box and is fixedly connected with the main crushing roller, and an auxiliary crushing roller is rotatably connected at the position at the front side inner wall of the crushing box and positioned at the right side of the main crushing roller through a bearing, the crushing box comprises a main crushing roller, a secondary crushing roller, a grinding tooth, an extrusion baffle, a transmission turntable, a transmission guide rod, a positioning shaft and a bearing, wherein the position of the inner wall of the front side of the crushing box, which is positioned at the lower side of the main crushing roller and the auxiliary crushing roller, is rotatably connected with the secondary crushing roller through the bearing, the outer wall of the secondary crushing roller is fixedly connected with the grinding tooth, the position of the inner wall of the front side of the crushing box, which is positioned at the left side of the secondary crushing roller, the front side wall of the crushing box, which is positioned at the right side of the auxiliary crushing roller, is rotatably connected with the transmission turntable through the bearing, the rear end of the transmission turntable penetrates through the crushing box and is fixedly connected with the auxiliary crushing roller, the front side wall of the transmission turntable is rotatably connected with the transmission guide rod through the bearing, the bottom of the crushing box is provided with a chute, the positioning shaft is fixedly connected with the top of the screening box through the bearing, which is positioned at the position, which is far away from the transmission turntable is positioned at the upper end of the screening box, the screening box comprises a screening box body, a support, a discharging screening device, a mounting transverse frame, a shaking screening device, a poking rod, a unidirectional hinge and a vibrating mechanism, wherein a discharging opening is formed in the left side wall of the screening box body, a dispersing retaining pile is fixedly connected to the position, close to the middle, of the rear side inner wall of the screening box body through the support, a discharging screening device is mounted on the position, close to the bottom, of the right side wall of the screening box body, a mounting transverse frame is fixedly connected to the position, close to the lower side of the discharging screening device, of the left side inner wall of the screening box body, a mounting transverse frame is fixedly connected to the position, close to the bottom, of the screening box body, a front screening rod is movably inserted between the discharging screening device and the mounting transverse frame, a rear screening rod is movably inserted to the position, close to the right side of the front side wall of the screening box body, a shaking screening device is arranged below the front screening rod and the rear screening rod, the bottom of the crushing box body is rotatably connected with the poking rod through the hinge, the unidirectional hinge, and the poking rod can only deflect towards the left side but cannot deflect towards the right side;

the screening plant of unloading includes conveying guide arm, installation bearing and adapter sleeve, the outer wall of installation bearing and the right side wall of screening case are located the position fixed connection who leans on the downside, the inner wall fixed connection of adapter sleeve and installation bearing, the conveying guide arm activity cup joints the inside at the adapter sleeve, the right-hand member of conveying guide arm passes through the bearing and is connected with the left side wall rotation of installation curb plate, the left end of conveying guide arm runs through the screening case and extends the left side of screening case.

Preferably, the shaking screening device comprises a base, a clamping groove, a connecting frame, a positioning chuck, a supporting block, a limiting rod, a limiting clamping groove, a left clamping rod and a right clamping rod, wherein the base is fixedly connected with the middle position of the top of the installation cross frame, the clamping groove is formed in the bottom of the base, the positioning chuck is fixedly connected with the middle position of the inner wall of the bottom of the connecting frame, the connecting frame is sleeved on the outer side of the base, one end, far away from the connecting frame, of the positioning chuck is movably clamped in the clamping groove, the supporting block is fixedly connected with the top of the connecting frame, the limiting rod is fixedly connected with one end, far away from the connecting frame, of the supporting block, the limiting clamping groove is formed in the left end and the right end of the limiting rod, the left clamping rod is fixedly connected with the bottom of the front screen rod and is located at the position opposite to the limiting clamping groove, the right clamping rod is fixedly connected with the bottom of the rear screen rod and is located at the position opposite to the limiting clamping groove, the one end that preceding sieve pole was kept away from to left side kelly inserts to the left side inside that leans on of spacing draw-in groove, the one end that back sieve pole was kept away from to right side kelly inserts to the right side inside that leans on of spacing draw-in groove.

Preferably, the main crushing roller, the auxiliary crushing roller and the secondary crushing roller all run through the crushing box and extend to the rear side of the crushing box near the rear end, the rear end of the main crushing roller is meshed with a rear end gear of the auxiliary crushing roller, the rear end of the auxiliary crushing roller is connected with the rear end of the secondary crushing roller through a belt and a belt pulley in a transmission mode, the distance between the main crushing roller and the auxiliary crushing roller is larger than the distance between the main crushing roller and the secondary crushing roller, the distance between the main crushing roller and the secondary crushing roller is larger than the minimum distance between the secondary crushing roller and an extrusion baffle plate, the main crushing roller is driven to rotate through a power motor, the main crushing roller drives the auxiliary crushing roller to reversely rotate through a gear, and the main crushing roller and the auxiliary crushing roller rotate and drive crushing teeth to roll and crush the construction waste in the middle part.

Preferably, the end, close to clockwise, of the crushing tooth is sharp-pointed, the cross-sectional shape of the rolling tooth is semicircular, the construction waste is cut and crushed through the crushing tooth, and the construction waste is squeezed and crushed through the rolling tooth.

Preferably, the dispersion fender pile is coniform, and building rubbish spreads along the outer wall of dispersion fender pile to the outside when dropping to dispersion fender pile top to prevent that building rubbish from concentrating the whereabouts and influencing the efficiency of screening.

Preferably, the distance between the side surface of the extrusion baffle close to the lower end and the secondary crushing roller is gradually reduced, so that the construction waste between the secondary crushing roller and the extrusion baffle is crushed by the rolling teeth.

Preferably, the mounting bearing is a one-way bearing, the outer wall of the conveying guide rod is provided with a threaded ring, the inner wall of the connecting sleeve is provided with a threaded groove, the mounting bearing rotates to enable the conveying guide rod to keep static when the screening box moves towards the right side through the cooperation of the conveying guide rod, the mounting bearing and the connecting sleeve, the mounting bearing enables the connecting sleeve to be incapable of rotating when the screening box moves towards the left side, the conveying guide rod rotates under the action of the threaded groove in the inner wall of the connecting sleeve to enable construction waste to move towards the left side through the threaded ring, and large construction waste is moved out towards the left side.

Preferably, the lower extreme that leans on of spacing draw-in groove is all hugged closely to left kelly and right kelly when gag lever post is parallel with the installation crossbearer by the inside wall, makes the gag lever post rotate under the restriction of left kelly and right kelly when removing.

Compared with the prior art, the invention provides a construction waste crushing and screening device which has the following beneficial effects:

1. the construction waste crushing and screening device is provided with a power motor, a main crushing roller, an auxiliary crushing roller, a secondary crushing roller, crushing teeth, rolling teeth and an extrusion baffle plate, wherein the main crushing roller is driven by the power motor to rotate, the main crushing roller drives the auxiliary crushing roller to reversely rotate through a gear, the main crushing roller and the auxiliary crushing roller rotate around a restaurant and drive the crushing teeth to roll and crush construction waste in the middle part, meanwhile, the auxiliary crushing roller drives the secondary crushing roller to rotate through a belt, the construction waste falling to the upper side of the auxiliary crushing roller is stirred to the left side through the secondary crushing roller, the construction waste is crushed again under the action of the rolling teeth and the auxiliary crushing roller, then the construction waste falls to the surface of the extrusion baffle plate and moves downwards along the extrusion baffle plate, the distance between the extrusion baffle plate and the secondary crushing roller is gradually reduced, and when the construction waste is contacted with the secondary crushing roller, is rolled once more by secondary crushing roller and rolling tooth, has improved the crushing effect to building rubbish through the broken mode of cubic to broken mode has improved broken efficiency step by step.

2. This broken screening plant of building rubbish sets up the transmission carousel, the transmission guide arm, the screening case, location axle and poker rod, drives the transmission guide arm and rotates when the transmission carousel rotates, moves about the transmission guide arm drives the screening case through the location axle when rotating, and the screening case moves left through filterable bold building rubbish under the effect of poker rod when moving right, thereby makes building rubbish shift out the screening case fast, thereby prevents to take place to block up.

3. This broken screening plant of building rubbish sieves building rubbish through the screen cloth of carrying guide arm, preceding sieve pole and back sieve pole constitution, and carry guide arm, preceding sieve pole and back sieve pole and can remove to improved the efficiency of screening, building rubbish falls to and keeps off the stake top back along the dispersion and keep off the outside landing in stake surface, thereby disperses building rubbish, prevents that building rubbish from concentrating the efficiency that influences the screening.

4. This broken screening plant of building rubbish, set up the conveying guide arm, installation bearing and adapter sleeve, it moves left to drive the installation bearing when the screening case moves left, the installation bearing drives the adapter sleeve and moves left, the adapter sleeve moves left and drives the conveying guide arm through the screw thread and rotate, the contact position that the conveying guide arm rotated to make its top building rubbish changes and makes building rubbish roll, thereby screening efficiency has been improved, the screw thread of conveying guide arm rotation through its outer wall simultaneously drives the bold building rubbish of its top to move to the left side, discharge the bold building rubbish of screening to the left side.

5. The construction waste crushing and screening device is provided with a base, a clamping groove, a connecting frame, a positioning chuck, a supporting block, a limiting rod, a limiting clamping groove, a left clamping rod, a right clamping rod, a front screen rod and a rear screen rod, wherein the base is driven to move left and right through an installation cross frame when a screening box moves left and right, the base drives the connecting frame to move left through the clamping groove and the positioning chuck, the connecting frame drives the limiting rod to move left through the supporting block, the front screen rod limits the limiting rod to move left through the left clamping rod and the limiting clamping groove so that the limiting rod deflects anticlockwise, the connecting frame is driven to deflect through the supporting block when the limiting rod deflects, the limiting rod drives the right clamping rod to move back through the limiting clamping groove, the right clamping rod drives the rear screen rod to move back, the limiting rod drives the left clamping rod to move front through the limiting clamping groove when the screening box moves right, so that the front screen rod and the rear screen rod are driven to repeatedly move back and forth when the screening box moves left and right, thereby make the building of preceding sieve pole and back sieve pole upside and the contact position of preceding sieve pole and back sieve pole change constantly, thereby improved the efficiency of screening, thereby prevent that the motionless emergence from blockking up between building rubbish and preceding sieve pole and the back sieve pole from influencing screening efficiency.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the internal structure of the screening box of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 3A according to the present invention;

FIG. 5 is a schematic diagram of a portion of the shaker screening apparatus of the present invention;

figure 6 is a schematic view of the underside structure of the shaking and screening device of the present invention.

Wherein: 1. a crushing box; 2. installing a side plate; 3. supporting legs; 4. a feeding hopper; 5. a power motor; 6. a main crushing roller; 7. a secondary crushing roller; 8. a secondary crushing roller; 9. crushing teeth; 10. grinding teeth; 11. extruding the baffle; 12. a transmission turntable; 13. a drive guide rod; 14. screening the box; 15. an I-shaped fastener; 16. positioning the shaft; 17. a discharge opening; 18. dispersing the retaining piles; 19. a conveying guide rod; 20. mounting a bearing; 21. connecting sleeves; 22. mounting a transverse frame; 23. a base; 24. a card slot; 25. a connecting frame; 26. positioning the chuck; 27. a support block; 28. a limiting rod; 29. a limiting clamping groove; 30. a left clamping rod; 31. a right clamping rod; 32. a front screen bar; 33. a rear screen bar; 34. a poke rod.

Detailed Description

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

Referring to fig. 1-6, the invention provides a construction waste crushing and screening device, which comprises a crushing box 1 and a screening box 14, wherein the bottom of the crushing box 1 is fixedly connected with an installation side plate 2 at a position close to the right side, the bottom of the installation side plate 2 is fixedly connected with a supporting leg 3 at a position close to the front side, a feeding port is formed in the top of the crushing box 1 at the middle position, a feeding hopper 4 is fixedly connected to the top of the crushing box 1 at a position outside the feeding port, a power motor 5 is fixedly connected to the front side wall of the crushing box 1 at a position close to the left side of the middle position, a main crushing roller 6 is rotatably connected to a position, opposite to the power motor 5, of the front side inner wall of the crushing box 1 through a bearing, crushing teeth 9 are fixedly connected to the outer wall of the main crushing roller 6, an output end of the power motor 5 penetrates through the crushing box 1 and is fixedly connected with the main crushing roller 6, and an auxiliary crushing roller is rotatably connected to a position, on the right side of the front side inner wall of the main crushing roller 6, of the crushing box 1 through a bearing 7, the inner wall of the front side of the crushing box 1 and the position at the lower side of the main crushing roller 6 and the auxiliary crushing roller 7 are rotatably connected with a secondary crushing roller 8 through a bearing, the outer wall of the secondary crushing roller 8 is fixedly connected with rolling teeth 10, the end, close to the clockwise, of each crushing tooth 9 is sharp, the cross section of each rolling tooth 10 is semicircular, the construction waste is cut and crushed through the crushing teeth 9, the construction waste is extruded and crushed through the rolling teeth 10, the inner wall of the front side of the crushing box 1 and the position at the left side of the secondary crushing roller 8 are fixedly connected with an extrusion baffle plate 11, the rear ends, close to the main crushing roller 6, the auxiliary crushing roller 7 and the secondary crushing roller 8 all penetrate through the crushing box 1 and extend to the rear side of the crushing box 1, the rear end of the main crushing roller 6 is meshed with a rear end gear of the auxiliary crushing roller 7, the rear end of the auxiliary crushing roller 7 is connected with the rear end of the secondary crushing roller 8 through a belt pulley and a belt pulley in a transmission way, the distance between the main crushing roller 6 and the auxiliary crushing roller 7 is larger than the distance between the main crushing roller 6 and the secondary crushing roller 8, the distance between the main crushing roller 6 and the secondary crushing roller 8 is larger than the minimum distance between the secondary crushing roller 8 and the extrusion baffle plate 11, the main crushing roller 6 is driven to rotate by the power motor 5, the main crushing roller 6 drives the auxiliary crushing roller 7 to reversely rotate through a gear, the main crushing roller 6 and the auxiliary crushing roller 7 carry out restaurant rotation and drive the crushing teeth 9 to crush and crush the construction waste in the middle part, meanwhile, the auxiliary crushing roller 7 drives the secondary crushing roller 8 to rotate through a belt, the construction waste falling to the upper side of the auxiliary crushing roller 8 is stirred to the left side through the secondary crushing roller 8, the construction waste is crushed again under the action of the crushing teeth 10 and the auxiliary crushing roller 7, the construction waste falls to the surface of the extrusion baffle plate 11 and moves downwards along the extrusion baffle plate 11, the distance between the side surface close to the lower end of the extrusion baffle plate 11 and the secondary crushing roller 8 is gradually reduced, so that the construction waste between the secondary crushing roller 8 and the extrusion baffle plate 11 is extruded and crushed by the rolling teeth 10, the crushing effect on the construction waste is improved by a three-time crushing mode, the crushing efficiency is improved by a step-by-step crushing mode, the front side wall of the crushing box 1 is positioned at the position just opposite to the secondary crushing roller 7 and is rotationally connected with a transmission turntable 12 through a bearing, the rear end close to the transmission turntable 12 penetrates through the crushing box 1 and is fixedly connected with the secondary crushing roller 7, the front side wall of the transmission turntable 12 is rotationally connected with a transmission guide rod 13 through a bearing, the bottom of the crushing box 1 is provided with a chute, the top of the screening box 14 is fixedly connected with an I-shaped clamping piece 15, the upper end close to the I-shaped clamping piece 15 is clamped inside the chute, the front side wall of the screening box 14 is fixedly connected with a positioning shaft 16 at the position close to the left side, the front end of a positioning shaft 16 is rotatably connected with one end of a transmission guide rod 13 far away from a transmission turntable 12 through a bearing, the left side wall of a screening box 14 is provided with a discharge opening 17, the inner wall of the rear side of the screening box 14 is fixedly connected with a dispersion retaining pile 18 through a bracket near the middle, the dispersion retaining pile 18 is conical, construction waste is dispersed outwards along the outer wall of the dispersion retaining pile 18 when falling above the dispersion retaining pile 18, so that the construction waste is prevented from falling intensively to influence the screening efficiency, the right side wall of the screening box 14 is provided with a discharge screening device near the bottom, the inner wall of the left side of the screening box 14 is fixedly connected with an installation transverse frame 22 at the lower side of the discharge screening device, the front side wall of the screening box 14 is movably inserted with a front screening rod 32 at the position between the discharge device and the installation transverse frame 22, the front side wall of the screening box 14 is movably inserted with a rear screening rod 33 at the position on the right side of the front screening rod 32, the shaking screening device is arranged below the front screening rod 32 and the rear screening rod 33, the bottom of the crushing box 1 is rotatably connected with a poking rod 34 through a hinge, the hinge is a one-way hinge, so that the poking rod 34 can only deflect towards the left side but cannot deflect towards the right side, a transmission turntable 12, a transmission guide rod 13, a screening box 14, a positioning shaft 16 and a poking rod 34 are arranged, the transmission turntable 12 drives the transmission guide rod 13 to rotate when rotating, the transmission guide rod 13 drives the screening box 14 to move left and right through the positioning shaft 16 when rotating, and the screening box 14 moves right and pushes large building garbage which is not filtered inside the screening box 14 to move left under the action of the poking rod 34, so that the building garbage can quickly move out of the screening box 14, and blockage is prevented;

the unloading and screening device comprises a conveying guide rod 19, a mounting bearing 20 and a connecting sleeve 21, wherein the outer wall of the mounting bearing 20 is fixedly connected with the right side wall of the screening box 14 and is positioned at a position close to the lower side, the connecting sleeve 21 is fixedly connected with the inner wall of the mounting bearing 20, the conveying guide rod 19 is movably sleeved inside the connecting sleeve 21, the right end of the conveying guide rod 19 is rotatably connected with the left side wall of the mounting side plate 2 through a bearing, the left end of the conveying guide rod 19 penetrates through the screening box 14 and extends to the left side of the screening box 14, the mounting bearing 20 is a one-way bearing, the outer wall of the conveying guide rod 19 is provided with a threaded ring, the inner wall of the connecting sleeve 21 is provided with a threaded groove, the mounting bearing 20 rotates to enable the conveying guide rod 19 to be kept static when the screening box 14 moves towards the right side through the matching of the conveying guide rod 19, the mounting bearing 20 and the connecting sleeve 21, and the mounting bearing 20 enables the connecting sleeve 21 not to rotate when the screening box 14 moves towards the left side, the conveying guide rod 19 rotates under the action of the thread groove on the inner wall of the connecting sleeve 21 to drive the construction waste to move to the left side through the thread ring, and large construction waste is moved out to the left side.

The shaking screening device comprises a base 23, a clamping groove 24, a connecting frame 25, a positioning clamping head 26, a supporting block 27, a limiting rod 28, a limiting clamping groove 29, a left clamping rod 30 and a right clamping rod 31, wherein the base 23 is fixedly connected with the top of an installation transverse frame 22 and positioned in the middle, the clamping groove 24 is formed in the bottom of the base 23, the positioning clamping head 26 is fixedly connected with the inner wall of the bottom of the connecting frame 25 and positioned in the middle, the connecting frame 25 is sleeved on the outer side of the base 23, one end, far away from the connecting frame 25, of the positioning clamping head 26 is movably clamped in the clamping groove 24, the supporting block 27 is fixedly connected with the top of the connecting frame 25, the limiting rod 28 is fixedly connected with one end, far away from the connecting frame 25, of the supporting block 27, the limiting clamping groove 29 is formed in the left end and the right end of the limiting rod 28, the left clamping rod 30 is fixedly connected with the bottom of a front screening rod 32 and positioned right to the limiting clamping groove 29, the right clamping rod 31 is fixedly connected with the bottom of a rear screening rod 33 and positioned right to the limiting clamping groove 29, one end of the left clamping rod 30, which is far away from the front screen rod 32, is inserted into the left side of the limiting clamping groove 29, one end of the right clamping rod 31, which is far away from the rear screen rod 33, is inserted into the right side of the limiting clamping groove 29, when the limiting rod 28 is parallel to the mounting cross frame 22, the lower ends of the left clamping rod 30 and the right clamping rod 31 are tightly attached to the inner side wall of the limiting clamping groove 29, so that the limiting rod 28 can rotate under the limitation of the left clamping rod 30 and the right clamping rod 31 when moving, construction waste is screened through a screen formed by the conveying guide rod 19, the front screen rod 32 and the rear screen rod 33, the conveying guide rod 19, the front screen rod 32 and the rear screen rod 33 can move, the screening efficiency is improved, the construction waste falls above the dispersing retaining piles 18 and slides outwards along the surface of the dispersing retaining piles 18, the construction waste is dispersed, the screening efficiency is prevented from being intensively influenced, and the base 23, the clamping groove 24 and the construction waste is arranged, The screening box 14 comprises a connecting frame 25, a positioning chuck 26, a supporting block 27, a limiting rod 28, a limiting clamping groove 29, a left clamping rod 30, a right clamping rod 31, a front screening rod 32 and a rear screening rod 33, the screening box 14 drives a base 23 to move left and right through an installation transverse frame 22 when moving left and right, the base 23 drives the connecting frame 25 to move left through a clamping groove 24 and the positioning chuck 26, the connecting frame 25 drives the limiting rod 28 to move left through the supporting block 27, the front screening rod 32 limits the limiting rod 28 to move left through the left clamping rod 30 and the limiting clamping groove 29 so as to enable the limiting rod 28 to deflect anticlockwise, the limiting rod 28 drives the connecting frame 25 to deflect through the supporting block 27 when deflecting, the limiting rod 28 drives the right clamping rod 31 to move towards the rear side through the limiting clamping groove 29, the right clamping rod 31 drives the rear screening rod 33 to move towards the rear side, when the screening box 14 is screened, the limiting rod 28 drives the left clamping rod 30 to move towards the front side through the limiting clamping groove 29, thereby make screening case 14 remove when moving and drive preceding sieve pole 32 and back sieve pole 33 and carry out the back-and-forth movement repeatedly to make the building of preceding sieve pole 32 and the upside of back sieve pole 33 and the contact position of preceding sieve pole 32 and back sieve pole 33 change constantly, thereby improved the efficiency of screening, thereby prevent that the motionless takes place to block up between building rubbish and preceding sieve pole 32 and the back sieve pole 33 and influences screening efficiency.

When in use, the construction waste is thrown into the crushing box 1 through the feeding hopper 4, the power motor 5 is started simultaneously, the main crushing roller 6 is driven to rotate through the power motor 5, the main crushing roller 6 drives the auxiliary crushing roller 7 to reversely rotate through the gear, the main crushing roller 6 and the auxiliary crushing roller 7 rotate through the restaurant and drive the crushing teeth 9 to roll and crush the construction waste in the middle part, meanwhile, the auxiliary crushing roller 7 drives the secondary crushing roller 8 to rotate through the belt, the construction waste falling to the upper side of the auxiliary crushing roller 8 is stirred to the left side through the secondary crushing roller 8, the construction waste is crushed again under the action of the rolling teeth 10 and the auxiliary crushing roller 7, then the construction waste falls to the surface of the extrusion baffle plate 11 and moves downwards along the extrusion baffle plate 11, the distance between the extrusion baffle plate 11 and the secondary crushing roller 8 is gradually reduced, when the construction waste is contacted with the secondary crushing roller 8, the construction waste is rolled again by the secondary crushing roller 8 and the rolling teeth 10, the construction waste after rolling falls to the upper part of the dispersing retaining pile 18, the construction waste falls to the upper part of the dispersing retaining pile 18 and then slides outwards along the surface of the dispersing retaining pile 18, so that the construction waste is dispersed and falls to the upper part of a screen mesh consisting of a conveying guide rod 19, a front screen rod 32 and a rear screen rod 33, the auxiliary crushing roller 7 drives the transmission turntable 12 to rotate when rotating, the transmission guide rod 13 rotates when the transmission turntable 12 rotates, the screening box 14 is driven to move left and right by the positioning shaft 16 when the transmission guide rod 13 rotates, large building waste which is not filtered inside the screening box 14 is driven to move left under the action of the poking rod 34 when the screening box 14 moves right, so that the construction waste is quickly moved out of the screening box 14, the mounting bearing 20 is driven to move left when the screening box 14 moves left, the mounting bearing 20 drives the connecting sleeve 21 to move left, the connecting sleeve 21 moves leftwards to drive the conveying guide rod 19 to rotate through threads, the conveying guide rod 19 rotates to change the contact position of the construction waste above the conveying guide rod 19 to roll the construction waste, so that the screening efficiency is improved, meanwhile, the conveying guide rod 19 rotates to drive the large construction waste above the conveying guide rod to move leftwards through the threads on the outer wall of the conveying guide rod 19, the screened large construction waste is discharged leftwards, the screening box 14 drives the base 23 to move leftwards and rightwards through the mounting cross frame 22 when moving leftwards and rightwards, the base 23 drives the connecting frame 25 to move leftwards through the clamping grooves 24 and the positioning clamping heads 26, the connecting frame 25 drives the limiting rod 28 to move leftwards through the supporting block 27, the front screening rod 32 limits the limiting rod 28 to move leftwards through the left clamping rod 30 and the limiting clamping grooves 29 to enable the limiting rod 28 to deflect anticlockwise, and drives the connecting frame 25 to deflect through the supporting block 27 when the limiting rod 28 deflects, the limiting rod 28 drives the right clamping rod 31 to move towards the rear side through the limiting clamping groove 29, the right clamping rod 31 drives the rear sieve rod 33 to move towards the rear side, when the sieving box 14 moves towards the right, the limiting rod 28 drives the left clamping rod 30 to move towards the front side through the limiting clamping groove 29, so that the sieving box 14 drives the front sieve rod 32 and the rear sieve rod 33 to repeatedly move back and forth when moving left and right, contact positions of buildings on the upper sides of the front sieve rod 32 and the rear sieve rod 33 and the front sieve rod 32 and the rear sieve rod 33 are changed constantly, sieving efficiency is improved, and accordingly the influence on sieving efficiency caused by blockage caused by the fact that the buildings on the upper sides of the front sieve rod 32 and the rear sieve rod 33 are stationary is prevented, small-sized buildings can fall below the sieving box 14, and large-sized buildings can move left and fall below the mounting side plate 2 and are located at positions close to the left.

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

Claims

1. The utility model provides a construction waste crushing and screening device, includes crushing case (1) and screening case (14), its characterized in that: the bottom of the crushing box (1) is fixedly connected with an installation side plate (2) at the position close to the right side, the bottom of the installation side plate (2) is fixedly connected with a supporting leg (3) at the position close to the front side, the top of the crushing box (1) is provided with a feed opening at the middle position, the top of the crushing box (1) is fixedly connected with a feed hopper (4) at the position outside the feed opening, the front side wall of the crushing box (1) is fixedly connected with a power motor (5) at the position slightly left from the middle, the inner wall of the front side of the crushing box (1) is rotatably connected with a main crushing roller (6) at the position just opposite to the power motor (5) through a bearing, the outer wall of the main crushing roller (6) is fixedly connected with crushing teeth (9), and the output end of the power motor (5) penetrates through the crushing box (1) and is fixedly connected with the main crushing roller (6), the crushing device is characterized in that the position of the inner wall of the front side of the crushing box (1), which is positioned on the right side of the main crushing roller (6), is rotatably connected with an auxiliary crushing roller (7) through a bearing, the position of the inner wall of the front side of the crushing box (1), which is positioned on the lower side of the main crushing roller (6) and the auxiliary crushing roller (7), is rotatably connected with a secondary crushing roller (8) through a bearing, the outer wall of the secondary crushing roller (8) is fixedly connected with grinding teeth (10), the position of the inner wall of the front side of the crushing box (1), which is positioned on the left side of the secondary crushing roller (8), is fixedly connected with a pressing baffle plate (11), the position of the front side wall of the crushing box (1), which is positioned right against the auxiliary crushing roller (7), is rotatably connected with a transmission turntable (12) through a bearing, the rear end of the transmission turntable (12) penetrates through the crushing box (1) and is fixedly connected with the auxiliary crushing roller (7), and the front side wall of the transmission turntable (12) is rotatably connected with a transmission guide rod (13) through a bearing, the bottom of the crushing box (1) is provided with a sliding groove, the top of the screening box (14) is fixedly connected with an I-shaped clamping piece (15), the upper end of the I-shaped clamping piece (15) close to the sliding groove is clamped inside the sliding groove, the front side wall of the screening box (14) is fixedly connected with a positioning shaft (16) close to the left side, the front end of the positioning shaft (16) is rotatably connected with one end, far away from the transmission turntable (12), of the transmission guide rod (13) through a bearing, the left side wall of the screening box (14) is provided with a discharge opening (17), the rear side inner wall of the screening box (14) is fixedly connected with a dispersion retaining pile (18) close to the middle through a bracket, the right side wall of the screening box (14) is provided with a discharge screening device close to the bottom, and the left side inner wall of the screening box (14) is fixedly connected with a mounting transverse frame (22) at the position of the lower side of the discharge, a front sieve rod (32) is movably inserted in a position, located between the discharging sieving device and the mounting cross frame (22), of the front side wall of the sieving box (14), a rear sieve rod (33) is movably inserted in a position, located on the right side of the front sieve rod (32), of the front side wall of the sieving box (14), a shaking sieving device is arranged below the front sieve rod (32) and the rear sieve rod (33), and the bottom of the crushing box (1) is rotatably connected with a poking rod (34) through a hinge;

unloading screening plant is including carrying guide arm (19), installation bearing (20) and adapter sleeve (21), the outer wall of installation bearing (20) and the right side wall of screening case (14) are located and lean on the position fixed connection of downside, the inner wall fixed connection of adapter sleeve (21) and installation bearing (20), carry guide arm (19) activity to cup joint the inside at adapter sleeve (21), the right-hand member of carrying guide arm (19) passes through the bearing and is connected with the left side wall rotation of installation curb plate (2), the left end of carrying guide arm (19) runs through screening case (14) and extends the left side of screening case (14).

2. The construction waste crushing and screening device of claim 1, wherein: the shaking screening device comprises a base (23), a clamping groove (24), a connecting frame (25), a positioning clamping head (26), a supporting block (27), a limiting rod (28), a limiting clamping groove (29), a left clamping rod (30) and a right clamping rod (31), wherein the base (23) is fixedly connected with the top of an installation transverse frame (22) and is positioned in the middle, the clamping groove (24) is formed in the bottom of the base (23), the positioning clamping head (26) is fixedly connected with the inner wall of the bottom of the connecting frame (25) and is positioned in the middle, the connecting frame (25) is sleeved on the outer side of the base (23), one end, far away from the connecting frame (25), of the positioning clamping head (26) is movably clamped inside the clamping groove (24), the supporting block (27) is fixedly connected with the top of the connecting frame (25), the limiting rod (28) is fixedly connected with one end, far away from the connecting frame (25), of the supporting block (27), both ends about gag lever post (28) are seted up in spacing draw-in groove (29), left side kelly (30) and the bottom of preceding sieve pole (32) are located just to the position fixed connection of spacing draw-in groove (29), right side kelly (31) and the bottom of back sieve pole (33) are located just to the position fixed connection of spacing draw-in groove (29), the one end that preceding sieve pole (32) were kept away from in left side inserts inside leaning on the left side to spacing draw-in groove (29), the one end that back sieve pole (33) were kept away from in right side kelly (31) is inserted inside leaning on the right side to spacing draw-in groove (29).

3. The construction waste crushing and screening device of claim 1, wherein: the rear ends of the main crushing roller (6), the auxiliary crushing roller (7) and the secondary crushing roller (8) which are close to each other all penetrate through the crushing box (1) and extend to the rear side of the crushing box (1), the rear end of the main crushing roller (6) is meshed with the rear end gear of the auxiliary crushing roller (7), and the rear end of the auxiliary crushing roller (7) is connected with the rear end of the secondary crushing roller (8) through a belt and a belt pulley in a transmission mode.

4. The construction waste crushing and screening device of claim 1, wherein: the end, close to the clockwise direction, of the crushing tooth (9) is sharp, and the cross section of the rolling tooth (10) is semicircular.

5. The construction waste crushing and screening device of claim 1, wherein: the dispersing retaining pile (18) is conical.

6. The construction waste crushing and screening device of claim 1, wherein: the distance between the side surface of the extrusion baffle plate (11) close to the lower end and the secondary crushing roller (8) is gradually reduced.

7. The construction waste crushing and screening device of claim 1, wherein: the mounting bearing (20) is a one-way bearing, the outer wall of the conveying guide rod (19) is provided with a threaded ring, and the inner wall of the connecting sleeve (21) is provided with a threaded groove.

8. The construction waste crushing and screening device of claim 2, wherein: when the limiting rod (28) is parallel to the mounting transverse frame (22), the lower ends of the left clamping rod (30) and the right clamping rod (31) close to the inner side wall of the limiting clamping groove (29) in a clinging mode.