CN113477508A

CN113477508A - Building stones sieving mechanism for highway construction

Info

Publication number: CN113477508A
Application number: CN202110815821.0A
Authority: CN
Inventors: 孟萌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2021-10-08

Abstract

The invention discloses a stone screening device for highway construction, which comprises a screening box, wherein two sides of the screening box are respectively provided with two discharge ports, the horizontal height difference of the two discharge ports is more than thirty centimeters, a first support plate is arranged in the screening box at a position opposite to the discharge ports, one end of the first support plate, which is far away from the discharge ports, is rotatably connected with the inner wall of the screening box, the middle part of the top end of the screening box is provided with a feed port, one end of the first support plate, which is positioned right below the feed port, is provided with a feed through hole, a screen frame is arranged above the feed through hole, the middle part of the screen frame is fixedly connected with a screening net, the bottom of the screening box is provided with a material collecting hopper, the position of the outer part of the screening box, which is opposite to the material collecting hopper, is fixedly connected with a fine material screening groove, the first support plate for supporting the screen frame can rotate in the screening box, the inclination angle of the screen frame can be controlled by rotating and adjusting a first threaded rod, the angle can be adjusted according to the material quantity screened simultaneously, and the accuracy of material screening is improved.

Description

Building stones sieving mechanism for highway construction

The technical field is as follows:

the invention belongs to the technical field of mechanical equipment, and particularly relates to a stone screening device for highway construction.

Background art:

the highway construction is one of important performance for measuring economic construction of a region, China is a capital construction country and a population country, kilometers are earlier than millions of kilometers, and in the process of highway construction, in order to prolong the service life of kilometers, foundations need to be drilled, and fine sand, stones and other materials with different sizes need to be paved underground according to different layers.

In the prior art, stones need to be screened firstly during road construction, and then stones with different sizes are laid on different ground layers respectively, and a submarine cable riprap protection stone grading screening device is disclosed through retrieval (application number CN201320338199. X). 1. The device only screens the materials through the screen, so that the screening efficiency is low and the screening speed is low; 2. the angle of the screen of the device is fixed, so that more proper screen angle adjustment is difficult to perform according to the actual working environment, the material type and the actual specific requirements of the work, and the actual working effect is poor; 3. the device is difficult to clean the interior of the device reasonably, and the practicability is poor; 4. in addition, it is violent that it shakes at the during operation screen cloth of the device that adopts the shock motor to carry out screening among the prior art, makes the material splash everywhere easily, and device stability is relatively poor.

The invention content is as follows:

the invention aims to solve the problems and provide a stone screening device for highway construction, wherein small stones are collected into a collecting hopper through vibration screening of two screens, and then are conveyed into a fine material screening groove through conveying of a spiral discharging rod; the first supporting plate for supporting the screen frame can rotate in the screening box, the inclination angle of the screen frame can be controlled by rotating and adjusting the first threaded rod, the angle can be adjusted according to the amount of materials screened at the same time, and the accuracy of material screening is improved; the bottom of the supporting leg of supporting the screening case and the bottom of screen frame all are equipped with damping rod and spring, and at the shock motor during operation, vibrations are weakened through the mode of shrink to two sets of springs and damping rod, avoid the device to lead to removing because of the vibrations of high frequency in the course of the work, increase the stability of device.

In order to solve the problems, the invention provides a technical scheme of a stone screening device for highway construction, which comprises the following steps:

a stone screening device for highway construction comprises a screening box, wherein two sides of the screening box are respectively provided with two discharge ports, the horizontal height difference of the two discharge ports is larger than thirty centimeters, a first supporting plate is arranged at the position of the interior of the screening box opposite to the discharge ports, one end, far away from the discharge ports, of the first supporting plate is rotatably connected with the inner wall of the screening box, a feed port is arranged at the middle part of the top end of the screening box in a chiseling mode, a feed through hole is arranged at one end, located right below the feed port, of the first supporting plate in a chiseling mode, a screen frame is arranged above the feed through hole, a screening net is fixedly connected to the middle part of the screen frame, a gathering hopper is arranged at the bottom of the screening box, a concentrate screening groove is fixedly connected to the position, opposite to the concentrate gathering hopper, of the exterior of the screening box, spiral discharge rods are arranged inside the concentrate screening groove, and four corners of the bottom of the screening box are provided with supporting legs, the supporting leg includes the bracing piece No. one, the bottom of bracing piece is equipped with the supporting shoe, be equipped with No. two springs between supporting shoe and the bracing piece No. one.

According to a preferred technical scheme, springs are arranged at four corners of the bottom of the screen frame, damping rods are sleeved inside the springs, the tops of the springs and the tops of the damping rods are fixedly connected with the screen frame, the bottoms of the springs and the damping rods are fixedly connected with a supporting plate, the tops of two sides of the two screen frames are fixedly connected with oscillating motors, the outer rings of the bottoms of the two screen frames are hinged with material guide plates, the material guide plates are connected with the screening net through springs, and two ends of each spring are fixedly connected with the material guide plates and the screening net.

According to a preferable technical scheme, two ends of the spiral discharging rod are respectively and rotatably connected with the inner walls of the fine material screening groove and the screening box, the position, opposite to the spiral discharging rod, of the outer wall of the screening box is fixedly connected with a three-phase motor, and the output end of the three-phase motor penetrates through the box wall of the screening box and is fixedly connected with the spiral discharging rod.

As a preferred technical scheme, the bottom of the discharge port of the outer wall of the screening box is fixedly connected with a second supporting plate, the top of the second supporting plate is provided with a first threaded rod, and the top of the first threaded rod is connected with the first supporting plate.

As a preferable technical scheme, a rotary groove is formed in the position, opposite to a first threaded rod, of the first supporting plate, a rotary table is connected to the inside of the rotary groove in a rotating mode, the first threaded rod is connected with the rotary table in a threaded mode, a rolling groove is formed in the top of the second supporting plate in a digging mode, a rolling ball is movably connected to the inside of the rolling groove, and the bottom of the first threaded rod is fixedly connected with the rolling ball.

As a preferred technical scheme of the invention, a plurality of blanking holes are equidistantly cut on the wall of the concentrate screening groove, and the aperture of the blanking holes of the concentrate screening groove decreases from small to large from one end close to the screening box.

As a preferred technical scheme of the invention, the upper part of the fine material screening groove 13 is hinged with a cleaning door through an electromagnetic switch in a matching way.

As a preferred technical scheme, a telescopic groove is formed in the top of the supporting block, a second damping rod is sleeved inside the second spring, the tops of the second spring and the second damping rod are fixedly connected with the first supporting rod, and the bottoms of the second spring and the second damping rod are fixedly connected with the telescopic groove.

As a preferred technical scheme, the outer wall of the lower end of the first supporting rod is fixedly connected with a third supporting plate, the top of the supporting block is rotatably connected with a second threaded rod, the second threaded rod is in threaded connection with the third supporting plate, and the bottoms of the two ends of the third supporting plate are fixedly connected with universal wheels.

The invention has the beneficial effects that: 1. the screening device is provided with multiple screens, wherein small stones are collected into a collecting hopper through vibration screening of two screens, and then conveyed into a fine material screening tank through a spiral blanking rod, the small stones are sequentially obtained from a screening tank due to different apertures of blanking holes, so that the stones are further refined, and unscreened materials are screened into five different grades and reasonably collected through the process, so that the fineness of the foundation during laying is improved, and the foundation firmness is improved; 2. the first supporting plate for supporting the screen frame can rotate in the screening box, the inclination angle of the screen frame can be controlled by rotating and adjusting the first threaded rod, the angle can be adjusted according to the amount of materials screened at the same time, and the accuracy of material screening is improved; 3. damping rods and springs are arranged at the bottoms of the supporting legs for supporting the screening box and the bottoms of the screen frames, when the vibration motor works, the two groups of springs and the damping rods weaken vibration in a contraction mode, the device is prevented from moving due to high-frequency vibration in the working process, and the stability of the device is improved; 4. through the control of the electromagnetic switch, when the device does not work and needs to be cleaned, the corresponding cleaning door can be opened to flush and clean the interior of the device, so that the service life of the device is prolonged; 5. through the cooperation of components such as stock guide, shock motor, screening net and No. three springs for the partial material that will fall into screening net edge strikes the faster material group of speed that falls down in the middle of the screening net, can also accelerate the falling speed of material to a certain extent when preventing that the material from splashing and falling into lower floor's component, can satisfy the reasonable screening to a large amount of materials when guaranteeing that the dog-house diameter can not too big dust when avoiding throwing the material flies upward.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

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

FIG. 2 is a schematic view of a connection structure of a screen frame of the present invention;

FIG. 3 is a schematic structural view of a concentrate screening tank of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of the present invention;

FIG. 5 is a schematic view of the connection structure of the first threaded rod of the present invention;

FIG. 6 is a schematic structural view of a support leg of the present invention.

In the figure: 1. a screening box; 2. a first support plate; 3. a discharge port; 4. a blanking through hole; 5. a first damping rod; 6. a first spring; 7. a screen frame; 8. a vibration motor; 9. screening the net; 10. a material guide plate; 11. a gathering hopper; 12. a screw-type blanking rod; 13. a concentrate screening tank; 14. supporting legs; 15. a three-phase motor; 16. a second support plate; 17. rolling a groove; 18. rolling a ball; 19. a first threaded rod; 20. rotating the groove; 21. a turntable; 22. a blanking hole; 23. a feeding port; 24. a first support rod; 25. a third support plate; 26. a support block; 27. a telescopic groove; 28. a second damping rod; 29. a second spring; 30. a universal wheel; 31. a second threaded rod; 32. and a third spring.

The specific implementation mode is as follows:

as shown in fig. 1 to 6, the following technical solutions are adopted in the present embodiment: a stone screening device for highway construction comprises a screening box 1, two discharge ports 3 are respectively drilled on two sides of the screening box 1, the horizontal height difference of the two discharge ports 3 is larger than thirty centimeters, a first supporting plate 2 is arranged in the screening box 1 at a position opposite to the discharge ports 3, one ends, far away from the discharge ports 3, of the first supporting plates 2 are rotatably connected with the inner wall of the screening box 1, a feed port 23 is drilled in the middle of the top end of the screening box 1, blanking through holes 4 are respectively drilled in one ends, located right below the feed port 23, of the first supporting plates 2, a screen frame 7 is arranged above the blanking through holes 4, a screening net 9 is fixedly connected to the middle of the screen frame 7, a gathering hopper 11 is arranged at the bottom of the screening box 1, and a fine material screening groove 13 is fixedly connected to the position, opposite to the gathering hopper 11, outside the screening box 1, gather hopper 11 and concentrate screening groove 13's inside and be equipped with spiral unloading pole 12, the bottom four corners of screening case 1 all is equipped with supporting leg 14, supporting leg 14 includes a bracing piece 24, the bottom of a bracing piece 24 is equipped with supporting shoe 26, be equipped with No. two springs 29 between supporting shoe 26 and a bracing piece 24.

Wherein, the bottom four corners of screen frame 7 is equipped with spring 6 No. one, the inside cover of spring 6 is equipped with damping rod 5 No. one, the top of spring 6 and damping rod 5 all with screen frame 7 fixed connection, the bottom and the 2 fixed connection of backup pad of a backup pad of spring 6 and damping rod 5, two the equal fixedly connected with in both sides top of screen frame 7 vibrate motor 8, two the bottom outer loop of screen frame 7 all articulates there is stock guide 10, be connected through No. three spring 32 between stock guide 10 and the screening net 9, No. three spring 32 both ends respectively with stock guide 10 and screening net 9 fixed connection.

Wherein, the both ends of spiral unloading pole 12 rotate with the inner wall of concentrated material screening groove 13 and screening case 1 respectively and are connected, the relative spiral unloading pole 12's of outer wall of screening case 1 position fixedly connected with three phase motor 15, the output of three phase motor 15 passes the tank wall and the spiral unloading pole 12 fixed connection of screening case 1.

Wherein, the outer wall of screening case 1 is located the equal fixedly connected with backup pad 16 No. two in bottom of discharge gate 3, the top of backup pad 16 No. two is equipped with threaded rod 19, the top and the backup pad 2 of threaded rod 19 are connected.

Wherein, the position excavation of a backup pad 2 relative threaded rod 19 is equipped with turn trough 20, the internal rotation of turn trough 20 is connected with carousel 21, a threaded rod 19 and carousel 21 threaded connection, the top excavation of No. two backup pads 16 is equipped with slot for rolling 17, the inside swing joint of slot for rolling 17 has spin 18, threaded rod 19's bottom and spin 18 fixed connection.

Wherein, the cell wall equidistance of concentrate screening groove 13 is dug and is equipped with a plurality of unloading holes 22, the unloading hole 22 aperture of concentrate screening groove 13 is from being close to the one end of screening case 1 from little to big and is decreased progressively.

Wherein, the upper portion in essence screening groove 13 is articulated to have the washing door through the electromagnetic switch cooperation, can be so that the device when the inoperative needs wash through electromagnetic switch's control, can open corresponding washing door, washes the cleanness to its inside, improves device's life.

The top of the supporting block 26 is provided with a telescopic groove 27, the inside of the second spring 29 is sleeved with a second damping rod 28, the tops of the second spring 29 and the second damping rod 28 are fixedly connected with the first supporting rod 24, and the bottoms of the second spring 29 and the second damping rod 28 are fixedly connected with the telescopic groove 27.

The outer wall of the lower end of the first supporting rod 24 is fixedly connected with a third supporting plate 25, the top of the supporting block 26 is rotatably connected with a second threaded rod 31, the second threaded rod 31 is in threaded connection with the third supporting plate 25, and the bottoms of the two ends of the third supporting plate 25 are fixedly connected with universal wheels 30.

Specifically, the method comprises the following steps: a stone screening device for road construction is characterized in that when the stone screening device is used, a second threaded rod 31 is rotated, a third support plate 25 is folded through rotation of the second threaded rod 31, the bottom of a universal wheel 30 is far away from a road surface and is contacted with the ground through a support block 26, a first support rod 24 is matched to support a screening box 1, a first threaded rod 19 is rotated according to materials to be screened and screening duration, a rotary disc 21 moves downwards to drive a first support plate 2 to rotate, the inclination angle of a screening net 9 is adjusted, the first threaded rod 19 is not vertical along with the inclination of the first support plate 2, the first threaded rod 19 is adjusted in angle with a rotary disc 21 and an angle of a screening net 18, materials are thrown from a material feeding port 23 after adjustment is completed, the materials fall on the topmost screening net 9, an oscillating motor 8 is started, the oscillating motor 8 drives a screen frame 7 to vibrate, the speed of stones passing through the screening net 9 is accelerated, when the oscillating motor 8 works, the first spring 6 and the first damping rod 5 at the bottom of the screen frame 7 weaken the vibration transmitted to the first supporting plate 2 in a deformation mode, the guide plate 10 also performs certain reciprocating motion, after materials pass through the screening net 9, the guide plate 10 can strike the materials falling from the edge of the screening net 9 to a certain extent, so that part of the materials falling into the edge of the screening net are struck to material groups falling in the middle of the screening net 9 at a higher speed, the falling speed of the materials can be accelerated to a certain extent while the materials are prevented from splashing to fall into lower-layer components, reasonable screening of a large number of materials can be met while dust is prevented from flying when the materials are thrown, small materials fall into the material collecting hopper 11, and meanwhile, the materials which do not pass through the screening net 9 can be discharged into a corresponding device from the discharge port 3 to be collected, open three phase motor 15, three phase motor 15's output drives spiral unloading pole 12 and rotates, the material is carried to beneficiated burden material screening groove 13 one side, carry less building stones in beneficiated burden material screening groove 13, because the aperture size difference of unloading hole 22, obtain the mountain flour in proper order from screening case 1, fine grit and gravel etc. the building stones obtain further refining, the material screening that will not sieve through this process becomes five different grades and collects rationally, improve the meticulous degree when the ground is laid, improve the ground fastness.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The stone screening device for highway construction is characterized by comprising a screening box (1), wherein two discharge ports (3) are respectively arranged on two sides of the screening box (1), the horizontal height difference of the two discharge ports (3) is greater than thirty centimeters, a first supporting plate (2) is arranged at the position, opposite to the discharge ports (3), in the screening box (1), one end, far away from the discharge ports (3), of the first supporting plate (2) is rotatably connected with the inner wall of the screening box (1), a feed port (23) is arranged in the middle of the top end of the screening box (1), a feed through hole (4) is formed in one end, located under the feed port (23), of the first supporting plate (2), a screening net frame (7) is arranged above the feed through hole (4), and a screening net (9) is fixedly connected to the middle of the screening net frame (7), the screening box is characterized in that a gathering hopper (11) is arranged at the bottom of the screening box (1), a concentrate screening groove (13) is fixedly connected to the position, opposite to the gathering hopper (11), of the outer portion of the screening box (1), a spiral blanking rod (12) is arranged inside the gathering hopper (11) and the concentrate screening groove (13), supporting legs (14) are arranged at four corners of the bottom of the screening box (1), each supporting leg (14) comprises a first supporting rod (24), a supporting block (26) is arranged at the bottom of each supporting rod (24), a second spring (29) is arranged between each supporting block (26) and each first supporting rod (24), first springs (6) are arranged at four corners of the bottom of the screen frame (7), a first damping rod (5) is sleeved inside each spring (6), and tops of the first springs (6) and the first damping rods (5) are fixedly connected with the screen frame (7), the bottom of the first spring (6) and the bottom of the first damping rod (5) are fixedly connected with the first supporting plate (2), the top parts of the two sides of the two screen frames (7) are fixedly connected with a vibration motor (8), the outer rings of the bottom of the two screen frames (7) are hinged with a guide plate (10), the guide plate (10) and the screening net (9) are connected through a third spring (32), the two ends of the third spring (32) are respectively and fixedly connected with the guide plate (10) and the screening net (9), the two ends of the spiral discharging rod (12) are respectively and rotatably connected with the inner walls of the fine material screening groove (13) and the screening box (1), the outer wall of the screening box (1) is fixedly connected with a three-phase motor (15) relative to the position of the spiral discharging rod (12), and the output end of the three-phase motor (15) penetrates through the box wall of the screening box (1) and is fixedly connected with the spiral discharging rod (12), the outer wall of screening case (1) is located backup pad (16) No. two of the equal fixedly connected with in bottom of discharge gate (3), the top of backup pad (16) is equipped with threaded rod (19) No. one, the top and the backup pad (2) of threaded rod (19) are connected, the position excavation of a backup pad (2) relative threaded rod (19) is equipped with rotary groove (20), the internal rotation of rotary groove (20) is connected with carousel (21), threaded rod (19) and carousel (21) threaded connection, the top excavation of backup pad (16) No. two is equipped with rolling slot (17), the inside swing joint of rolling slot (17) has spin (18), the bottom and spin (18) fixed connection of threaded rod (19).

2. The screening apparatus of stone for road construction as set forth in claim 1, wherein: the cell wall equidistance of essence screening groove (13) is dug and is equipped with a plurality of unloading holes (22), the unloading hole (22) aperture of essence screening groove (13) is from being close to the one end of screening case (1) by little to big degressive.

3. The screening apparatus of stone for road construction as set forth in claim 1, wherein: the upper part of the fine material screening groove (13) is hinged with a cleaning door through an electromagnetic switch in a matching way.

4. The screening apparatus of stone for road construction as set forth in claim 1, wherein: the top of supporting shoe (26) is dug and is equipped with flexible groove (27), the inside cover of No. two springs (29) is equipped with No. two damping rods (28), the top of No. two springs (29) and No. two damping rods (28) all with bracing piece (24) fixed connection, the bottom and flexible groove (27) fixed connection of No. two springs (29) and No. two damping rods (28).

5. The screening apparatus of stone for road construction as set forth in claim 1, wherein: the support rod is characterized in that a third support plate (25) is fixedly connected to the outer wall of the lower end of the first support rod (24), a second threaded rod (31) is rotatably connected to the top of the support block (26), the second threaded rod (31) is in threaded connection with the third support plate (25), and universal wheels (30) are fixedly connected to the bottoms of the two ends of the third support plate (25).