CN114918125A - Screening plant for road engineering - Google Patents
Screening plant for road engineering Download PDFInfo
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- CN114918125A CN114918125A CN202210563597.5A CN202210563597A CN114918125A CN 114918125 A CN114918125 A CN 114918125A CN 202210563597 A CN202210563597 A CN 202210563597A CN 114918125 A CN114918125 A CN 114918125A
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- Prior art keywords
- gear
- shell
- feeding
- screening
- switch valve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a screening device for road engineering, which relates to the technical field of screening equipment and comprises a walking bracket, wherein the walking bracket is provided with a first shell, a screening mechanism, a second shell, a first driving mechanism, a feeding mechanism, a second driving mechanism, a dredging mechanism and a discharging switch valve; a feeding switch valve is arranged at the top of the first shell; the feeding mechanism is used for shoveling and taking the building materials on the ground and conveying the building materials to the feeding switch valve; the screening mechanism is used for screening the building materials with different sizes and screening the building materials with qualified sizes out from the lower part of the screening mechanism; the discharging switching valve is used for receiving the building materials screened out from the screening mechanism; the second shell is provided with a crushing mechanism which is used for crushing building materials which are not sieved by the sieving mechanism and have larger sizes; dredge mechanism sets up in screening mechanism top, and dredge mechanism is used for dredging screening mechanism's sieve mesh and spraying liquid and carry out the dust fall.
Description
Technical Field
The invention relates to the technical field of screening equipment, in particular to a screening device for road engineering.
Background
In the building construction process, according to the construction needs of difference, need sieve the processing to former gravel and stones, separate big or small stone wherein, fine sand, use now more be exactly the screening machine that has multistage screen cloth, improved screening efficiency greatly. However, current screening plant, at first, in the screen cloth use, there are a lot of sizes and the equal stone of size of screen cloth mesh to plug up the mesh, if not clear away in time, will cause the jam to the mesh, influence work efficiency, damage the machine even, and secondly, the stone that contains in the grit is filtered out by the screen cloth if will transport once more or smash, wastes time and energy.
In the prior art, for example, a chinese patent with publication number CN112246622B discloses a multi-stage screening mechanism and a concrete gravel screening device, wherein a primary screening device and a secondary screening device are sequentially arranged from top to bottom, and a first driving motor is used to drive a swing mechanism to swing, so as to drive an arc screen to swing; the material sieved by the circular arc screen can fall into a secondary sieving device; an output shaft of the second driving motor is connected with the top of the connecting rod, and the bottom of the connecting rod extends downwards; the sleeve is arranged at the periphery of the connecting rod, and a gap is formed between the sleeve and the connecting rod; the downward movement of the lower pressing piece can drive the movable block to slide downwards so that the other end of the second connecting rod extends out of the through groove; the secondary screen is connected to the sleeve; the secondary screen comprises a bottom net and a side net, wherein the bottom net and the side net are encircled to form a screen mesh structure with an opening at the top and connected with the periphery and the bottom; the secondary screen can rotate relative to the chassis. This prior art has the advantage that the efficiency of sieving is high. But does not consider the problems of early feeding, later blanking and large-volume material treatment without sieving.
Disclosure of Invention
Aiming at the defects in the prior art, the feeding mechanism can scoop the materials on the ground and convey the materials to the feeding switch valve; the screening mechanism can screen materials with two specifications at the same time; the crushing mechanism can crush the materials with larger volume which are not screened out in the processing channel, and is convenient for secondary screening.
The technical scheme adopted by the invention for solving the technical problems is as follows: a screening device for road engineering comprises a walking support, wherein a first shell, a screening mechanism, a second shell, a first driving mechanism, a feeding mechanism, a second driving mechanism, a dredging mechanism and a discharging switch valve are arranged on the walking support; the first shell is fixedly arranged on the walking bracket, and a feeding switch valve is arranged at the top of the first shell; the feeding mechanism is used for shoveling and taking the building materials on the ground and conveying the building materials to the feeding switch valve; one end of the screening mechanism is rotatably connected with the first shell, the other end of the screening mechanism is rotatably connected with the second shell, the second shell is rotatably connected with the walking bracket, and the interiors of the second shell, the screening mechanism and the first shell are mutually communicated to form a processing channel; a feeding screw is rotatably mounted on the first shell, one end of the feeding screw penetrates through the first shell and is connected with the feeding switch valve, the other end of the feeding screw penetrates through the second shell to the outer side of the second shell and is connected with the second driving mechanism, and the feeding screw is used for conveying building materials; the screening mechanism is used for screening the building materials with different sizes and screening the building materials with qualified sizes out of the lower part of the screening mechanism; the discharging switch valve is arranged at the bottom of the screening mechanism and is used for receiving the building materials screened out of the screening mechanism; the second shell is provided with a crushing mechanism which is used for crushing building materials which are not sieved by the sieving mechanism and have larger sizes; the dredging mechanism is arranged above the screening mechanism and is used for dredging sieve pores of the screening mechanism and spraying liquid for dust fall; the first driving mechanism is used for driving the discharge switch valve to move; the second driving mechanism is used for driving the feeding screw and the screening mechanism to move, the feeding screw drives the feeding switch valve to move, and the feeding switch valve drives the feeding mechanism to move.
Further, the feeding mechanism comprises a first gear which is rotatably arranged on the first shell, the feeding switch valve drives the first gear to rotate, a second gear is fixedly arranged on a central shaft of the first gear, a first transmission shaft is rotatably arranged on the first shell, two ends of the first transmission shaft are provided with first belt wheels, third gears are further arranged on the first transmission shaft, the third gears are meshed with the second gears, second belt wheels are symmetrically arranged on the walking support, the first belt wheels are in transmission connection with the second belt wheels through a transmission belt, third belt wheels are arranged on the central shaft of the second belt wheels, fourth belt wheels are symmetrically arranged on the walking support, the third belt wheels are in transmission connection with the fourth belt wheels through the transmission belt, a cross rod is arranged on the transmission belt, a connecting frame is slidably arranged on the cross rod, a first rack is arranged at one end, close to the first driving mechanism, the first rack is driven by the driving mechanism to move, a first spring is arranged in the connecting frame, one end of the first spring is fixedly connected with the cross rod, the other end of the first spring is fixedly connected with the connecting frame, and a dustpan for shoveling building materials is arranged at the bottom of the connecting frame.
Further, the feeding switch valve comprises a driving wheel rotatably mounted on a first shell, a central shaft of the driving wheel is fixedly connected with a feeding screw, a pawl is rotatably mounted on the driving wheel, an elastic part for resetting the pawl is arranged on the pawl, the other end of the elastic part is connected with the driving wheel, a ratchet wheel is rotatably mounted on the first shell and is meshed with the pawl, a first support is arranged on the outer peripheral side of the ratchet wheel, a first gear ring is arranged on the outer peripheral side of the first support and is meshed with a first gear in a feeding mechanism, a first connecting rod is arranged on the first support, a second connecting rod is rotatably mounted on the other end of the first connecting rod, a second support is rotatably connected with the other end of the second connecting rod and is in sliding connection with the first shell, second racks are symmetrically mounted on the second support, a feeding hopper is arranged at the top of the first shell, the feeding hopper and the first shell are mutually communicated to form a feeding channel, and bin gates for opening and closing the feeding channel are symmetrically arranged on the feeding hopper, the feeding hopper is symmetrically provided with four gears, the four gears are meshed with the two racks, the four gears respectively penetrate through the feeding hopper and are fixedly connected with the bin gate, the top of the feeding hopper is rotatably connected with an accepting plate, and an elastic part used for accepting the plate to reset is arranged at the joint of the accepting plate and the feeding hopper.
Furthermore, the screening mechanism comprises a screen drum which is rotatably installed on the walking support, one end of the screen drum is rotatably connected with one end of the shell, the other end of the screen drum is rotatably connected with the second shell, one end, close to the second driving mechanism, of the screen drum is provided with a second gear ring, the second driving mechanism drives the second gear ring to rotate, the screen drum is divided into a coarse filtering area and a fine filtering area, a screen is slidably installed on the outer periphery of the bottom of the coarse filtering area of the screen drum, the size of a screen hole of the screen is consistent with that of a screen hole of the fine filtering area on the screen drum, one end, close to the second driving mechanism, of the screen is provided with a trigger rod and a discharge hole, the second driving mechanism drives the trigger rod to move, a first electric push rod is arranged on the screen, a push plate is arranged on the output end of the first electric push rod, the push plate slides in a hollow cavity formed between the screen drum and pushes materials screened out from the coarse filtering area to the discharge hole, a fixed plate is arranged on the walking support, and a plurality of fixed plates for assisting the screen to vibrate are arranged on the fixed plates.
Further, the crushing mechanism comprises a first motor arranged on the walking support, a fifth gear is arranged on an output shaft of the first motor, a third gear ring is arranged on the second shell, the third gear ring is meshed with the fifth gear, a second motor is arranged on one side of the second shell, a sixth gear is arranged on an output shaft of the second motor, a seventh gear is rotatably arranged on the second shell, a gear transmission set is arranged on the second shell, the sixth gear drives the seventh gear to rotate through the gear transmission set, a first crushing wheel is fixedly arranged on a central shaft of the sixth gear, and a second crushing wheel is fixedly arranged on a central shaft of the seventh gear.
Furthermore, the discharging switch valve comprises a discharging bin arranged at the bottom of the walking support, the bottom surface of the discharging bin is an inclined plane, a discharging port is arranged on one lower side of the horizontal height of the bottom surface of the discharging bin, a baffle is slidably arranged on one side, close to the discharging port, of the discharging bin, a connecting rod III is arranged on the baffle, a rack III is arranged on the connecting rod III, and a driving mechanism drives the rack to move.
Further, mediation mechanism includes the slide of slidable mounting on the walking support, slidable mounting has a plurality of mediation heads on the slide, the overhead spring two that has cup jointed of mediation, the one end and the slide fixed connection of spring two, the other end and the first fixed connection of mediation of spring two, the cavity has been seted up to mediation first inside, the sprinkler bead has been seted up to mediation head bottom, the last water tank that is provided with of walking support, the water tank bottom is provided with the hose, the one end and the water tank intercommunication of hose, the other end and the first intercommunication of mediation of hose, it installs gear eight to rotate on the walking support, gear eight and the second intermeshing of ring gear in the screening mechanism, be provided with connecting rod four on gear eight's the center pin, set up flutedly on the slide, connecting rod four slides in the recess on the slide.
Further, the driving mechanism I comprises an arc-shaped sliding rail and an electric push rod II which are arranged on the walking support, inclined rails are symmetrically arranged on the output end of the electric push rod II, the arc-shaped sliding rail is symmetrically arranged on the walking support, a transmission shaft II is slidably mounted on the arc-shaped sliding rail and is slidably connected with the inclined rails, a gear nine and a gear ten are respectively arranged on two sides of the transmission shaft II, the gear nine is used for driving a rack I in the feeding mechanism to move, the gear ten is used for driving a rack III in the discharging switch valve to move, a motor III is slidably mounted on the inclined rails, and the output shaft of the motor III is fixedly connected with the transmission shaft II.
Furthermore, the driving mechanism II comprises a motor IV arranged on the walking support, a belt wheel VI is arranged on an output shaft of the motor IV, a gear IV is arranged on a central shaft of the belt wheel VI, a rotating rod is arranged on the gear IV and used for driving the trigger rod to move, the gear IV is meshed with the gear ring II, a belt wheel V is arranged on a central shaft of the feeding screw rod, and the belt wheel V is in transmission connection with the belt wheel VI through a transmission belt.
Compared with the prior art, the invention has the beneficial effects that: (1) the feeding mechanism can scoop the materials on the ground and convey the materials to the feeding switch valve; (2) the screening mechanism can screen materials with two specifications at the same time; (3) the crushing mechanism can crush the materials with larger volume which are not screened out in the processing channel, and is convenient for secondary screening.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is another perspective view of the overall structure of the present invention.
Fig. 3 is a schematic structural diagram of the feeding mechanism of the present invention.
Fig. 4 is a schematic structural diagram of the feeding switch valve of the invention.
FIG. 5 is a schematic view of the feed screw of the present invention.
Fig. 6 is a schematic structural view of the screening mechanism of the present invention.
Fig. 7 is a partial structural schematic view of the screening mechanism of the present invention.
Fig. 8 is a schematic view of the crushing mechanism of the present invention.
Fig. 9 is a schematic view of the internal structure of the crushing mechanism of the present invention.
FIG. 10 is a schematic view of the structure of the outlet switch valve of the present invention.
Fig. 11 is a schematic structural view of the dredging mechanism of the invention.
FIG. 12 is a schematic view of a driving mechanism according to the present invention.
FIG. 13 is a schematic structural diagram of a second driving mechanism according to the present invention.
In the figure: 1. a walking bracket; 2. a first shell; 3. a screening mechanism; 4. a second shell; 5. a first driving mechanism; 6. a feeding mechanism; 7. a feeding switch valve; 8. a second driving mechanism; 9. a feed screw; 10. a crushing mechanism; 11. a dredging mechanism; 12. a discharge switch valve; 301. a screen drum; 302. a gear ring II; 303. screening a screen; 304. a trigger lever; 305. a fixing plate; 306. fixing the rod; 307. a first electric push rod; 308. pushing the plate; a. a discharge port; 501. an arc-shaped slide rail; 502. a second transmission shaft; 503. a ninth gear; 504. ten gears; 505. a second electric push rod; 506. a ramp; 507. a third motor; 601. a first gear; 602. a second gear; 603. a first transmission shaft; 604. a third gear; 605. a first belt wheel; 606. a second belt wheel; 607. a third belt wheel; 608. a belt wheel IV; 609. a conveyor belt; 610. a cross bar; 611. a connecting frame; 612. a first rack; 613. a first spring; 614. a dustpan; 701. a driving wheel; 702. a pawl; 703. a ratchet wheel; 704. a first bracket; 705. a first connecting rod; 706. a second connecting rod; 707. a second bracket; 708. a second rack; 709. feeding into a hopper; 710. a bin gate; 711. a fourth gear; 712. a bearing plate; 713. a first gear ring; 801. a motor IV; 802. a fifth belt wheel; 803. eleven gears; 804. a rotating rod; 1001. a first motor; 1002. a fifth gear; 1003. a gear ring III; 1004. a second motor; 1005. a sixth gear; 1006. a seventh gear; 1007. a first crushing wheel; 1008. a second crushing wheel; 1101. eighth gear; 1102. a fourth connecting rod; 1103. dredging the head; 1104. a second spring; 1105. a slide plate; 1106. a water tank; 1107. a hose; 1201. a blanking bin; 1202. a baffle plate; 1203. a third connecting rod; 1204. a third rack; b. and (4) a feed opening.
Detailed Description
In the following description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the following description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The invention will be further described with reference to the drawings and illustrative embodiments, which are provided herein for the purpose of illustrating the invention and are not to be construed as limiting the invention. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.
Example (b): as shown in fig. 1-13, a screening device for road engineering comprises a walking bracket 1, wherein a first shell 2, a screening mechanism 3, a second shell 4, a first driving mechanism 5, a feeding mechanism 6, a second driving mechanism 8, a dredging mechanism 11 and a discharging switch valve 12 are arranged on the walking bracket 1; the first shell 2 is fixedly arranged on the walking support 1, and a feeding switch valve 7 is arranged at the top of the first shell 2; the feeding mechanism 6 is used for shoveling and taking the building materials on the ground and conveying the building materials to the feeding switch valve 7; one end of the screening mechanism 3 is rotatably connected with the first shell 2, the other end of the screening mechanism 3 is rotatably connected with the second shell 4, the second shell 4 is rotatably connected with the walking bracket 1, and the interiors of the second shell 4, the screening mechanism 3 and the first shell 2 are mutually communicated to form a processing channel; a feeding screw 9 is rotatably mounted on the first shell 2, one end of the feeding screw 9 penetrates through the first shell 2 to be connected with the feeding switch valve 7, the other end of the feeding screw 9 penetrates through the second shell 4 to the outer side of the second shell 4 and is connected with the second driving mechanism 8, and the feeding screw 9 is used for conveying building materials; the screening mechanism 3 is used for screening the building materials with different sizes and screening the building materials with qualified sizes out of the lower part of the screening mechanism 3; the discharge switch valve 12 is arranged at the bottom of the screening mechanism 3, and the discharge switch valve 12 is used for receiving the building materials screened out of the screening mechanism 3; the second shell 4 is provided with a crushing mechanism 10, and the crushing mechanism 10 is used for crushing the building materials which are not sieved by the sieving mechanism 3 and have larger sizes; the dredging mechanism 11 is arranged above the screening mechanism 3, and the dredging mechanism 11 is used for dredging the sieve pores of the screening mechanism 3 and spraying liquid for dust fall; the first driving mechanism 5 is used for driving the discharge switch valve 12 to move; the second driving mechanism 8 is used for driving the feeding screw rod 9 and the screening mechanism 3 to move, the feeding screw rod 9 drives the feeding switch valve 7 to move, and the feeding switch valve 7 drives the feeding mechanism 6 to move.
The feeding mechanism 6 comprises a first gear 601 rotationally mounted on a first shell 2, a feeding switch valve 7 drives the first gear 601 to rotate, a second gear 602 is fixedly mounted on a central shaft of the first gear 601, a first transmission shaft 603 is rotationally mounted on the first shell 2, a first belt wheel 605 is fixedly mounted at each of two ends of the first transmission shaft 603, a third gear 604 is further fixedly mounted on the first transmission shaft 603, the third gear 604 and the second gear 602 are bevel gears, the third gear 604 and the second gear 602 are meshed with each other, second belt wheels 606 are symmetrically and rotationally mounted on a walking support 1, the first belt wheel 605 and the second belt wheel 606 are in transmission connection through a transmission belt, a third belt wheel 607 is fixedly mounted on the central shaft of the second belt wheel 606, fourth belt wheels 608 are symmetrically and rotationally mounted at the top of the walking support 1, the third belt wheels 607 and the fourth belt wheels 608 are in transmission connection through a transmission belt 609, a cross rod 610 is arranged between the transmission belts 609 at two sides, two ends of the cross rod 610 are respectively and fixedly connected with the transmission belts 609 at two sides, the cross rod 610 is provided with a connecting frame 611 in a sliding mode, one end, close to the first driving mechanism 5, of the connecting frame 611 is fixedly provided with a first rack 612, the first driving mechanism 5 drives the first rack 612 to move, a first spring 613 is arranged in the connecting frame 611, one end of the first spring 613 is fixedly connected with the cross rod 610, the other end of the first spring 613 is fixedly connected with the connecting frame 611, and the bottom of the connecting frame 611 is fixedly provided with a dustpan 614 for shoveling building materials; when the first driving mechanism 5 moves, the first rack 612 is driven to move, the first rack 612 drives the connecting frame 611 to slide on the cross bar 610, the connecting frame 611 drives the dustpan 614 to move in a translation manner, so that the dustpan 614 performs a shoveling action on the ground, when the feeding switch valve 7 moves, the first gear 601 is driven to rotate, the first gear 601 drives the second gear 602 to rotate, the second gear 602 drives the third gear 604 to rotate, the third gear 604 drives the first belt wheel 605 to rotate through the first transmission shaft 603, the first belt wheel 605 drives the second belt wheel 606 to rotate through the transmission belt, the second belt wheel 606 drives the third belt wheel 607 to rotate, the third belt wheel 607 drives the fourth belt wheel 608 to rotate through the transmission belt 609, the transmission belt 609 rotates, the cross bar 610 drives the connecting frame 611 to move, the connecting frame 611 drives the dustpan 614 to move, when the dustpan 614 moves to the top of the conveyor belt 609, the material is turned over, and building material scooped up in the dustpan 614 is poured into the material loading open/close valve 7.
The feeding switch valve 7 comprises a driving wheel 701 rotatably mounted on a first shell 2, the central shaft of the driving wheel 701 is fixedly connected with a feeding screw rod 9, a pawl 702 is rotatably mounted on the driving wheel 701, an elastic part for resetting the pawl 702 is arranged on the pawl 702, the other end of the elastic part is connected with the driving wheel 701, a ratchet 703 is rotatably mounted on the first shell 2 and is meshed with the pawl 702, a first support 704 is fixedly mounted on the outer peripheral side of the ratchet 703, a first gear ring 713 is fixedly mounted on the outer peripheral side of the first support 704, the first gear ring 713 is mutually meshed with a first gear 601 in the feeding mechanism 6, a first connecting rod 705 is fixedly mounted on the first support 704, a second connecting rod 706 is rotatably mounted at the other end of the first connecting rod 705, a second support 707 is rotatably connected at the other end of the second connecting rod 706, the second support 707 is slidably connected with the first shell 2, second racks 708 are symmetrically and fixedly mounted on the second support 707, and a feeding hopper 709 is fixedly mounted at the top of the first shell 2, the feeding hopper 709 and the shell I2 are communicated with each other to form a feeding channel, a bin door 710 for opening and closing the feeding channel is symmetrically and rotatably mounted on the feeding hopper 709, a gear IV 711 is symmetrically and rotatably mounted on the feeding hopper 709 and is meshed with the rack II 708, the gear IV 711 penetrates through the feeding hopper 709 and is fixedly connected with the bin door 710, the top of the feeding hopper 709 is rotatably connected with a bearing plate 712, the bearing plate 712 is rotatably connected with the feeding hopper 709, and an elastic element for resetting the bearing plate 712 is arranged at the joint of the bearing plate 712 and the feeding hopper 709; when the feeding screw 9 rotates, the driving wheel 701 is driven to rotate, the driving wheel 701 drives the pawl 702 to rotate, the pawl 702 drives the ratchet 703 to rotate, the ratchet 703 drives the first support 704 to rotate, the first support 704 drives the first gear ring 713 to rotate and simultaneously drives the first connecting rod 705 to rotate, the first gear ring 713 rotates and drives the first gear 601 in the feeding mechanism 6 to rotate, the first connecting rod 705 drives the second connecting rod 706 to swing, the second connecting rod 706 drives the second support 707 to slide along the first shell 2 in the vertical direction, the second support 707 drives the second rack 708 to vertically slide, the second rack 708 drives the fourth rack 711 to rotate, and the fourth rack 711 drives the bin door 710 to open and close; the arrangement of the internal engagement ratchet wheel 703 mechanism in the mechanism avoids the reverse operation of the dustpan 614 in the feeding mechanism 6 caused by a series of linkage due to the reverse rotation of the feeding screw 9, and also ensures that the feeding channel is in a closed state when the feeding screw 9 reversely rotates.
The screening mechanism 3 comprises a screen drum 301 rotatably mounted on the walking bracket 1, one end of the screen drum 301 is rotatably connected with a first shell 2, the other end of the screen drum 301 is rotatably connected with a second shell 4, one end of the screen drum 301 close to a second driving mechanism 8 is fixedly provided with a second gear ring 302, the second driving mechanism 8 drives the second gear ring 302 to rotate, the screen drum 301 is divided into a coarse filtering area and a fine filtering area, the outer periphery of the bottom of the coarse filtering area of the screen drum 301 is slidably provided with a screen mesh 303, the size of a screen mesh of the screen mesh 303 is consistent with that of a screen mesh of the fine filtering area on the screen drum 301, one end of the screen mesh 303 close to the second driving mechanism 8 is provided with a trigger rod 304 and a discharge port a, the discharge port a is externally connected with a collecting bin, the second driving mechanism 8 drives the trigger rod 304 to move, the screen mesh 303 is fixedly provided with a first electric push rod 307, the output end of the first electric push rod 307 is fixedly provided with a push plate 308, the push plate 308 slides in a hollow cavity formed between the screen mesh 303 and the screen drum 301 and pushes the material screened from the coarse filtering area to the discharge port a, a fixed plate 305 is fixedly arranged on the traveling bracket 1, and a plurality of fixed rods 306 for assisting the screen 303 to vibrate are fixedly arranged on the fixed plate 305; when the second driving mechanism 8 moves, the second driving mechanism 8 drives the second gear ring 302 to rotate and drives the trigger rod 304 to swing, when the second gear ring 302 rotates, the screen drum 301 is driven to rotate, the building materials inside the screen drum 301 are screened in the rotation of the screen drum 301, the smaller particles firstly fall to the discharge switch valve 12 below the screen drum 301 through the fine filtering area, the larger particles and part of the smaller particles fall to the screen mesh 303 through the coarse filtering area, when the trigger rod 304 swings, the screen mesh 303 is driven to slide on the screen drum 301, the screen mesh 303 collides with the fixed rod 306 in the sliding process, the screen mesh 303 vibrates, the smaller particles are screened out from the screen mesh 303 and fall to the discharge switch valve 12, at the moment, only the larger particles remain in the hollow cavity formed between the screen mesh 303 and the screen drum 301, the first electric push rod 307 is started, the first electric push rod 307 drives the second push rod 308 to push the larger particles to the discharge port a, fall into the collecting bin through the discharge port a. This screening mechanism 3 uses same power supply can sieve out two kinds of materials that the particle size is different, and application range is wider.
The crushing mechanism 10 comprises a first motor 1001 fixedly mounted on the walking bracket 1, a fifth gear 1002 is fixedly mounted on an output shaft of the first motor 1001, a third gear ring 1003 is fixedly mounted on a second shell 4, the third gear ring 1003 is meshed with the fifth gear 1002, a second motor 1004 is fixedly mounted on one side of the second shell 4, a sixth gear 1005 is fixedly mounted on an output shaft of the second motor 1004, a seventh gear 1006 is rotatably mounted on the second shell 4, a gear transmission set is arranged on the second shell 4, the sixth gear 1005 drives the seventh gear 1006 to rotate through the gear transmission set, a first crushing wheel 1007 is fixedly mounted on a central shaft of the sixth gear 1005, and a second crushing wheel 1008 is fixedly mounted on a central shaft of the seventh gear 1006; a certain amount of large-volume building materials exist in the processing channel and cannot be screened from the screening mechanism 3, the building materials are conveyed to the second shell 4 through the feeding screw rod 9, the first motor 1001 is started, the first motor 1001 drives the fifth gear 1002 to rotate, the fifth gear 1002 drives the third gear ring 1003 to rotate, the third gear ring 1003 drives the second shell 4 to swing, after the horizontal height of one side, provided with the crushing wheel, of the second shell 4 is lower, the first motor 1001 is halted, the large-volume building materials fall to the crushing wheel under the influence of gravity, the second motor 1004 is started, the second motor 1004 drives the sixth gear 1005 to rotate, the sixth gear 1005 drives the first crushing wheel 1007 to rotate and simultaneously drives the seventh gear 1006 to rotate through the gear rotating group, the seventh gear 1006 drives the second crushing wheel 1008 to rotate, the second crushing wheel 1008 and the first crushing wheel 1007 interact to crush the large-volume building materials, the first motor 1001 is started and rotated reversely, the motor 1001 drives the gear 1002 to rotate, the gear 1002 drives the gear ring 1003 to rotate, the gear ring 1003 drives the shell II 4 to swing, after the horizontal height of one side, provided with a crushing wheel, of the shell II 4 is high, the crushed building materials drop to the shell II 4 close to one side of the feeding screw rod 9 under the influence of gravity, the driving mechanism II 8 is started, the driving mechanism II 8 rotates reversely, the driving mechanism II 8 drives the feeding screw rod 9 to rotate reversely, and the feeding screw rod 9 conveys the crushed building materials to the screening mechanism 3 for secondary screening.
The discharging switch valve 12 comprises a blanking bin 1201 fixedly installed at the bottom of the walking bracket 1, the bottom surface of the blanking bin 1201 is an inclined surface, a blanking opening b is arranged on one side of the lower horizontal height of the bottom surface of the blanking bin 1201, a baffle 1202 is slidably installed on one side, close to the blanking opening b, of the blanking bin 1201, a connecting rod three 1203 is fixedly installed on the baffle 1202, a rack three 1204 is fixedly installed on the connecting rod three 1203, and a driving mechanism one 5 drives the rack three 1204 to move; when the first driving mechanism 5 moves, the third rack 1204 is driven to vertically move, the third rack 1204 drives the baffle 1202 to slide upwards, and the screened particles in the blanking bin 1201 fall out through the blanking port b.
The dredging mechanism 11 comprises a sliding plate 1105 which is slidably mounted on the walking support 1, a plurality of dredging heads 1103 are slidably mounted on the sliding plate 1105, a spring II 1104 is sleeved on each dredging head 1103, one end of the spring II 1104 is fixedly connected with the sliding plate 1105, the other end of the spring II 1104 is fixedly connected with each dredging head 1103, a hollow chamber is formed inside each dredging head 1103, a spraying opening is formed in the bottom of each dredging head 1103, a water tank 1106 is fixedly mounted on the walking support 1, a hose 1107 is fixedly mounted at the bottom of each water tank 1106, one end of each hose 1107 is communicated with the corresponding water tank 1106, the other end of each hose 1107 is communicated with each dredging head 1103, a water outlet valve is arranged at the joint of each water tank 1106 and each hose 1107, a gear octa 1101 is rotatably mounted on the walking support 1, the gear octa 1101 is mutually meshed with a gear ring II 302 in the screening mechanism 3, a connecting rod IV 1102 is fixedly mounted on the central shaft of the gear octa 1101, a groove 1105 is formed in the sliding plate 1105, and the connecting rod IV slides in the groove on the sliding plate 1105; when ring gear two 302 rotates, drive gear eight 1101 and rotate, gear eight 1101 drives connecting rod four 1102 and rotates, connecting rod four 1102 drives slide 1105 and slides from top to bottom in vertical direction, slide 1105 drives dredging head 1103 through spring two 1104 and reciprocates, clear up the sieve mesh that blocks up, when workshop operation dust is great, can start the outlet valve, the liquid in the water tank 1106 passes through hose 1107 and gets into dredging head 1103 department, spray to screening mechanism 3 on via dredging head 1103 again, carry out the dust fall and handle.
The first driving mechanism 5 comprises an arc-shaped sliding rail 501 and a second electric push rod 505 which are fixedly mounted on the walking bracket 1, oblique rails 506 are symmetrically and fixedly mounted on the output end of the second electric push rod 505, the arc-shaped sliding rails 501 are symmetrically arranged on the walking bracket 1, a second transmission shaft 502 is slidably mounted on the arc-shaped sliding rail 501, the second transmission shaft 502 is slidably connected with the oblique rails 506, the oblique rails 506 drive the second transmission shaft 502 to slide on the arc-shaped sliding rails 501, nine gears 503 and ten gears 504 are respectively and fixedly mounted on two sides of the second transmission shaft 502, the nine gears 503 are used for driving a first rack 612 in the feeding mechanism 6 to move, the ten gears 504 are used for driving a third rack 1204 in the discharging switch valve 12 to move, a third motor 507 is slidably mounted on the oblique rails 506, and an output shaft of the third motor 507 is fixedly connected with the second transmission shaft 502; in an initial state, a gear ten 504 and a gear rack three 1204 are in a meshed state, a gear nine 503 and a gear rack one 612 are in a separated state, when a motor three 507 is started, a motor three 507 drives a transmission shaft two 502 to rotate, a transmission shaft two 502 drives a gear nine 503 and a gear ten 504 to rotate, the gear ten 504 drives the gear rack three 1204 to move, when the gear rack one 612 needs to move, the motor three 507 is paused, an electric push rod two 505 is started, the electric push rod two 505 drives an inclined rail 506 to move, the inclined rail 506 pushes the transmission shaft two 502 to slide along an arc-shaped sliding rail 501 until the gear nine 503 and the gear rack one 612 are mutually meshed, the motor three 507 is started, the motor three 507 drives the transmission shaft two 502 to rotate, the transmission shaft two 502 drives the gear nine 503 and the gear ten 504 to rotate, and the gear nine 503 drives the gear rack one 612 to move.
The second driving mechanism 8 comprises a fourth motor 801 fixedly mounted on the walking support 1, a sixth belt wheel (not shown in the figure) is fixedly mounted on an output shaft of the fourth motor 801, an eleventh gear 803 is fixedly mounted on a central shaft of the sixth belt wheel, a rotary rod 804 is fixedly mounted on the eleventh gear 803, the rotary rod 804 is used for driving the trigger rod 304 to move, the eleventh gear 803 is meshed with the second gear ring 302, a fifth belt wheel 802 is fixedly mounted on a central shaft of the feeding screw 9, and the fifth belt wheel 802 is in transmission connection with the sixth belt wheel through a transmission belt; the motor IV 801 is started, the motor IV 801 drives the belt wheel VI to rotate, the belt wheel VI drives the belt wheel V802 to rotate through the transmission belt and simultaneously drives the gear V803 to rotate, the belt wheel V802 drives the feeding screw rod 9 to rotate, the gear V803 drives the gear ring II 302 to rotate and simultaneously drives the rotating rod 804 to rotate, and the rotating rod 804 cannot be limited by the trigger rod 304 when rotating and can push the trigger rod 304 to swing.
The working principle of the invention is as follows: starting a second driving mechanism 8, the second driving mechanism 8 drives a feeding screw 9 to rotate and simultaneously drives a screening mechanism 3 to move, the feeding screw 9 drives a feeding switch valve 7 to move, the feeding switch valve 7 is opened, the feeding switch valve 7 drives a feeding mechanism 6 to move, a first driving mechanism 5 is started, the first driving mechanism 5 drives the feeding mechanism 6 to shovel materials to be screened on the ground, then the feeding mechanism 6 drives the materials to move to the feeding switch valve 7, the materials are put into a processing channel from the feeding switch valve 7, the feeding screw 9 sends the materials to the screening mechanism 3, the screening mechanism 3 screens the materials, the qualified materials fall to a discharging switch valve 12 from the lower part of the screening mechanism 3, the materials with larger sizes are conveyed to a crushing mechanism 10 by the feeding screw 9, the crushing mechanism 10 is started to crush the materials, the second driving mechanism 8 is adjusted, make two 8 drive feeding screw 9 reversals of actuating mechanism, feeding screw 9 conveys the material after the breakage to screening mechanism 3 department and carries out the secondary screening, adjust actuating mechanism 5, make actuating mechanism 5 drive ejection of compact ooff valve 12 and open, the material after the screening falls out, when screening mechanism 3 blocks up, dredging mechanism 11 clears up screening mechanism 3's sieve mesh, when screening mechanism 3 moved, accessible starts dredging mechanism 11 and sprays water the dust fall to the processing environment.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides a screening plant for road engineering, includes walking support (1), its characterized in that: the traveling support (1) is provided with a first shell (2), a screening mechanism (3), a second shell (4), a first driving mechanism (5), a feeding mechanism (6), a second driving mechanism (8), a dredging mechanism (11) and a discharging switch valve (12);
the first shell (2) is fixedly arranged on the walking bracket (1), and the top of the first shell (2) is provided with a feeding switch valve (7);
the feeding mechanism (6) is used for shoveling the building materials on the ground and conveying the building materials to the feeding switch valve (7);
one end of the screening mechanism (3) is rotatably connected with the first shell (2), the other end of the screening mechanism (3) is rotatably connected with the second shell (4), the second shell (4) is rotatably connected with the walking bracket (1), and the interiors of the second shell (4), the screening mechanism (3) and the first shell (2) are communicated with one another to form a processing channel;
a feeding screw (9) is rotatably mounted on the first shell (2), one end of the feeding screw (9) penetrates through the first shell (2) to be connected with the feeding switch valve (7), the other end of the feeding screw (9) penetrates through the second shell (4) to the outer side of the second shell (4) and is connected with a second driving mechanism (8), and the feeding screw (9) is used for conveying building materials;
the screening mechanism (3) is used for screening the building materials with different sizes and screening the building materials with qualified sizes out from the lower part of the screening mechanism (3);
the discharging switch valve (12) is arranged at the bottom of the screening mechanism (3), and the discharging switch valve (12) is used for receiving the building materials screened out of the screening mechanism (3);
the second shell (4) is provided with a crushing mechanism (10), and the crushing mechanism (10) is used for crushing the building materials which are not sieved by the sieving mechanism (3) and have larger sizes;
the dredging mechanism (11) is arranged above the screening mechanism (3), and the dredging mechanism (11) is used for dredging sieve pores of the screening mechanism (3) and spraying liquid for dust fall;
the first driving mechanism (5) is used for driving the discharge switch valve (12) to move;
the second driving mechanism (8) is used for driving the feeding screw (9) and the screening mechanism (3) to move, the feeding screw (9) drives the feeding switch valve (7) to move, and the feeding switch valve (7) drives the feeding mechanism (6) to move.
2. A screening device for road engineering according to claim 1, wherein: the feeding mechanism (6) comprises a first gear (601) rotatably mounted on a first shell (2), a feeding switch valve (7) drives the first gear (601) to rotate, a second gear (602) is fixedly mounted on a central shaft of the first gear (601), a first transmission shaft (603) is rotatably mounted on the first shell (2), belt wheels (605) are arranged at two ends of the first transmission shaft (603), a third gear (604) is further arranged on the first transmission shaft (603), the third gear (604) is meshed with the second gear (602), belt wheels (606) are symmetrically arranged on the walking support (1), the first belt wheel (605) is in transmission connection with the second belt wheel (606) through a transmission belt, a third belt wheel (607) is arranged on the central shaft of the second belt wheel (606), belt wheels (608) are symmetrically arranged on the walking support (1), and the third belt wheel (607) is in transmission connection with the fourth belt wheel (608) through a transmission belt (609), the conveying belt (609) is provided with a cross rod (610), a connecting frame (611) is installed on the cross rod (610) in a sliding mode, a rack I (612) is arranged at one end, close to a driving mechanism I (5), of the connecting frame (611), the driving mechanism I (5) drives the rack I (612) to move, a spring I (613) is arranged in the connecting frame (611), one end of the spring I (613) is fixedly connected with the cross rod (610), the other end of the spring I (613) is fixedly connected with the connecting frame (611), and a dustpan (614) used for shoveling building materials is arranged at the bottom of the connecting frame (611).
3. A screening device for road engineering according to claim 2, wherein: the feeding switch valve (7) comprises a driving wheel (701) rotatably mounted on a first shell (2), a central shaft of the driving wheel (701) is fixedly connected with a feeding screw (9), a pawl (702) is rotatably mounted on the driving wheel (701), an elastic part for resetting the pawl (702) is arranged on the pawl (702), the other end of the elastic part is connected with the driving wheel (701), a ratchet wheel (703) is rotatably mounted on the first shell (2), the ratchet wheel (703) is meshed with the pawl (702), a first support (704) is arranged on the outer peripheral side of the ratchet wheel (703), a first gear ring (713) is arranged on the outer peripheral side of the first support (704), the first gear ring (713) is mutually meshed with a first gear (601) in the feeding mechanism (6), a first connecting rod (705) is arranged on the first support (704), a second connecting rod (706) is rotatably mounted on the other end of the first connecting rod (705), and a second support (707) is rotatably connected to the other end of the second connecting rod (706), the support II (707) is in sliding connection with the shell I (2), the rack II (708) is symmetrically installed on the support II (707), a feeding hopper (709) is arranged at the top of the shell I (2), the feeding hopper (709) and the shell I (2) are communicated with each other to form a feeding channel, bin gates (710) used for opening and closing the feeding channel are symmetrically arranged on the feeding hopper (709), gear IV (711) is symmetrically arranged on the feeding hopper (709), the gear IV (711) is meshed with the rack II (708), the gear IV (711) respectively penetrates through the feeding hopper (709) and the bin gates (710) to be fixedly connected, a bearing plate (712) is rotatably connected to the top of the feeding hopper (709), and an elastic piece used for bearing the reset of the plate (712) is arranged at the joint of the bearing plate (712) and the feeding hopper (709).
4. A screening device for road engineering according to claim 1, wherein: the screening mechanism (3) comprises a screen drum (301) rotatably mounted on the walking support (1), one end of the screen drum (301) is rotatably connected with the first shell (2), the other end of the screen drum (301) is rotatably connected with the second shell (4), one end, close to the second driving mechanism (8), of the screen drum (301) is provided with a second gear ring (302), the second driving mechanism (8) drives the second gear ring (302) to rotate, the screen drum (301) is divided into a coarse filtering area and a fine filtering area, a screen (303) is slidably mounted on the outer peripheral side of the bottom of the coarse filtering area of the screen drum (301), screen holes of the screen (303) are consistent with screen holes of the fine filtering area on the screen drum (301), one end, close to the second driving mechanism (8), of the screen (303) is provided with a trigger rod (304) and a discharge hole (a), the second driving mechanism (8) drives the trigger rod (304) to move, and a first electric push rod (307) is arranged on the screen (303), the output end of the electric push rod I (307) is provided with a push plate (308), the push plate (308) slides in a hollow cavity formed between the screen mesh (303) and the screen drum (301) and pushes the materials screened out from the coarse screening area to a discharge hole (a), a fixed plate (305) is arranged on the walking bracket (1), and a plurality of fixed rods (306) used for assisting the screen mesh (303) to vibrate are arranged on the fixed plate (305).
5. A screening device for road engineering according to claim 1, wherein: the crushing mechanism (10) comprises a first motor (1001) arranged on the walking support (1), a fifth gear (1002) is arranged on an output shaft of the first motor (1001), a third gear ring (1003) is arranged on a second shell (4), the third gear ring (1003) is meshed with the fifth gear (1002), a second motor (1004) is arranged on one side of the second shell (4), a sixth gear (1005) is arranged on an output shaft of the second motor (1004), a seventh gear (1006) is rotatably arranged on the second shell (4), a gear transmission set is arranged on the second shell (4), the sixth gear (1005) drives the seventh gear (1006) to rotate through the gear transmission set, a first crushing wheel (1007) is fixedly arranged on a central shaft of the sixth gear (1005), and a second crushing wheel (1008) is fixedly arranged on a central shaft of the seventh gear (1006).
6. A screening device for road engineering according to claim 1, wherein: discharge switch valve (12) is including setting up blanking bin (1201) in walking bracket (1) bottom, blanking bin (1201) bottom surface is the inclined plane, the lower one side of blanking bin (1201) bottom surface level is provided with feed opening (b), one side slidable mounting that blanking bin (1201) are close to feed opening (b) has baffle (1202), be provided with three (1203) of connecting rod on baffle (1202), be provided with three (1204) of rack on three (1203) of connecting rod, actuating mechanism one (5) drive three (1204) motions of rack.
7. A screening device for road engineering according to claim 4, wherein: the dredging mechanism (11) comprises a sliding plate (1105) slidably mounted on a walking support (1), a plurality of dredging heads (1103) are slidably mounted on the sliding plate (1105), a second spring (1104) is sleeved on the dredging heads (1103), one end of the second spring (1104) is fixedly connected with the sliding plate (1105), the other end of the second spring (1104) is fixedly connected with the dredging heads (1103), a hollow chamber is formed inside the dredging heads (1103), a spraying port is formed at the bottom of the dredging heads (1103), a water tank (1106) is arranged on the walking support (1), a hose (1107) is arranged at the bottom of the water tank (1106), one end of the hose (1107) is communicated with the water tank (1106), the other end of the hose (1107) is communicated with the dredging heads (1103), a gear octa (1101) is rotatably mounted on the walking support (1), the gear octa (1101) is mutually meshed with a second gear ring (302) in the screening mechanism (3), a fourth connecting rod (1102) is arranged on a central shaft of the gear octa (1101), the sliding plate (1105) is provided with a groove, and the connecting rod IV (1102) slides in the groove on the sliding plate (1105).
8. A screening device for road engineering according to claim 2, wherein: the driving mechanism I (5) comprises an arc-shaped sliding rail (501) and an electric push rod II (505), the arc-shaped sliding rail (501) and the electric push rod II (505) are arranged on the walking support (1), oblique rails (506) are symmetrically arranged on the output end of the electric push rod II (505), the arc-shaped sliding rail (501) is symmetrically arranged on the walking support (1), a transmission shaft II (502) is slidably mounted on the arc-shaped sliding rail (501), the transmission shaft II (502) is slidably connected with the oblique rails (506), gear nine (503) and gear ten (504) are respectively arranged on two sides of the transmission shaft II (502), the gear nine (503) is used for driving a rack I (612) in the feeding mechanism (6) to move, the gear ten (504) is used for driving a rack III (1204) in the discharging switch valve (12) to move, a motor III (507) is slidably mounted on the oblique rails (506), and an output shaft of the motor III (507) is fixedly connected with the transmission shaft II (502).
9. A screening device for road engineering according to claim 4, wherein: the driving mechanism II (8) comprises a motor IV (801) arranged on the walking support (1), an output shaft of the motor IV (801) is provided with a belt wheel VI, a central shaft of the belt wheel VI is provided with a gear IV (803), a rotating rod (804) is arranged on the gear IV (803), the rotating rod (804) is used for driving the trigger rod (304) to move, the gear IV (803) is mutually meshed with the gear ring II (302), a central shaft of the feeding screw rod (9) is provided with a belt wheel V (802), and the belt wheel V (802) is in transmission connection with the belt wheel VI through a transmission belt.
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