CN110369253B

CN110369253B - Screening sand device is used in road and bridge construction

Info

Publication number: CN110369253B
Application number: CN201910589350.9A
Authority: CN
Inventors: 李智; 丁可; 蔡振宁; 李长江; 张婷婷
Original assignee: Suqian Tianyi Building Labor Co ltd
Current assignee: Suqian Tianyi Building Labor Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2021-02-02
Anticipated expiration: 2039-07-02
Also published as: CN110369253A

Abstract

The invention discloses a sand screening device for road and bridge construction, belongs to the technical field of building equipment, and solves the problems of sand screening difficulty, waste caused by directly screening out hardened sand blocks, low sand screening efficiency and difficult discharge in the road and bridge construction, and the technical key points are as follows: including first screening sand net, second screening sand net and screening sand box, the magazine is installed at screening sand box top, the magazine bottom intercommunication is smashed the case, it is equipped with the husky mouth that falls to smash the bottom of the case portion, it is equipped with first screening sand net to fall husky mouthful below, first screening sand net below is equipped with second screening sand net, smash the case through installing in the magazine bottom, conveniently smash the sand grain board caking of diameter more than two centimetres, secondly, after first screening sand net and the screening of second screening sand net, be convenient for the collection and the discharge of sand grain, and under linkage mechanism's drive that linkage arm and linkage disk etc. are constituteed, screening sand frame drives the vibration of second screening sand net, improve the efficiency of screening sand, and convenient operation.

Description

Screening sand device is used in road and bridge construction

Technical Field

The invention relates to the technical field of building equipment, in particular to a sand screening device for road and bridge construction.

Background

With the rapid development of economy and the continuous progress of road and bridge engineering, in building construction, sands with different diameters are generally needed to meet the building requirements of different occasions, when sand is screened in the traditional method, a screen is obliquely placed, then a shovel is manually used for splashing the sand to the screen, so that the screen is used for screening the sand, the sand is more laborious, and meanwhile, the efficiency is low.

The current screening sand machine has not only saved a large amount of manpower and materials as a mechanized screening sand device, has also improved screening sand efficiency simultaneously greatly, mixes the easy caking of earth in rainy day sand, and traditional screening sand device screens the gravel and sand of caking the effect not very good, causes the waste of sand easily.

In the screening process of the existing sand screening device, agglomerated sand cannot be crushed, so that the screening effect is reduced, and sand waste is caused; secondly, when screening, the sand that can't effectually be removed in time discharges, and screening sand device is at the in-process of screening, and the screen cloth only can be through the reel side to side movement, shakes when unable self side to side movement to avoid the sand to block up the screen cloth.

Therefore, it is desirable to provide a sand sieving device for road and bridge construction, aiming at solving the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a sand screening device for road and bridge construction, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a sand screening device for road and bridge construction comprises a first sand screening net, a second sand screening net and a sand screening box body, wherein a feeding hopper is installed at the top of the sand screening box body, the bottom of the feeding hopper is communicated with a crushing box, a sand falling port is formed in the bottom of the crushing box, the first sand screening net is arranged below the sand falling port, the second sand screening net is arranged below the first sand screening net, a deformation screen is arranged in the middle of the second sand screening net, two ends of the second sand screening net are fixed on a sand screening frame, the bottom of the sand screening frame is installed on a sliding block, the bottom of the sliding block is connected with a guide sleeve, the guide sleeve is arranged on a guide rod in a sliding mode, the two guide rods are arranged in parallel, the guide rod is distributed below the sliding block, two ends of the guide rod are connected with fixing frames, the fixing frames are fixed on the;

the quantity of slider is two and distributes in the both sides of fixing base, and the fixing base is fixed at the guide arm middle part, and the inside rotation of fixing base is provided with the axis of rotation, and the linkage dish is connected at the axis of rotation top, and linkage dish both sides are connected with the linkage arm, and the linkage arm passes through first linkage ball joint and connects the gangbar, and the gangbar passes through the one end of second linkage ball joint connection connecting rod, and the slider is connected to the other end of connecting rod.

As a further scheme of the invention, the sand screening box body is arranged on the bracket, a pair of squeezing rollers are arranged in the crushing box, the roller shafts of the squeezing rollers are connected through gears which are meshed with each other, the roller shaft of one squeezing roller is connected with the driving shaft through a coupler, and the driving shaft is connected with the motor shaft of the first motor.

As a further aspect of the present invention, the left press roll of the pair of press rolls rotates clockwise, and the right press roll rotates counterclockwise.

As a further aspect of the invention, the gap between a pair of said squeeze rolls is 5-20 mm.

As a further scheme of the invention, the first sand screening net is arranged on the blocking frame, the two sides of the blocking frame are connected with the telescopic rods, the tops of the telescopic rods are fixed on the top of the sand screening box body through rivets, and the tension springs are connected between the top wall of the sand screening box body and the blocking frame.

As a further scheme of the invention, the first sand screening net is obliquely arranged in the blocking frame, the inclination angle of the first sand screening net is 15-30 degrees, a guide plate is arranged below the bottom side of the first sand screening net, and the bottom side of the guide plate is connected with the first coarse sand hopper.

As a further scheme of the invention, the second sand screening net is obliquely arranged, and a second coarse sand hopper is arranged at the bottom side of the second sand screening net.

As a further scheme of the invention, the bottom of the sand screening box body is connected with a collecting hopper, the bottom of the collecting hopper is connected with a sand discharge pipe, and a discharge valve is arranged on the sand discharge pipe.

As a further scheme of the invention, the bottom of the rotating shaft is provided with an incomplete gear, the side surface of the incomplete gear is meshed with a pinion, the pinion is arranged on a motor shaft of a second motor, and the second motor is arranged in a driving box at the bottom of the fixed seat.

As a further scheme of the invention, an electric cylinder is adopted to replace a driving device consisting of an incomplete gear, a pinion and a second motor which are arranged at the bottom of a rotating shaft; the electric cylinder is arranged between the sliding block and the fixed seat.

In conclusion, compared with the prior art, the invention has the following beneficial effects:

the sand screening device for road and bridge construction is stable in structure and convenient to operate, a crushing box is arranged at the bottom of a feeding hopper, a sand grain plate with the diameter of more than two centimeters can be conveniently caked and crushed, then sand grains can be conveniently collected and discharged after being screened by a first sand screening net and a second sand screening net, a sand screening frame drives the second sand screening net to vibrate under the driving of a linkage mechanism consisting of a linkage arm, a linkage disc and the like, the sand screening efficiency is improved, and the operation is convenient.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of the invention.

Fig. 2 is a schematic structural diagram of installation of a coarse sand hopper in the invention.

Fig. 3 is a schematic structural view of the fixing base of the present invention.

Fig. 4 is a schematic structural diagram of a partial gear in the invention.

FIG. 5 is a top view of a linkage arm of the present invention.

Reference numerals: 1-feeding hopper, 2-squeezing roller, 3-crushing box, 4-sand falling port, 5-rivet, 6-telescopic rod, 7-tension spring, 8-blocking frame, 9-first sand screening net, 10-guide plate, 11-second sand screening net, 12-sand screening frame, 13-deformation screen, 14-slide block, 15-compression spring, 16-guide sleeve, 17-fixing frame, 18-guide rod, 19-collecting hopper, 20-connecting rod, 21-linkage arm, 22-sand discharge pipe, 23-discharge valve, 24-fixing seat, 25-sand screening box body, 26-driving shaft, 27-first motor, 28-first coarse sand hopper, 29-second coarse sand hopper, 30-support, 31-linkage disk, 32-rotating shaft, 33-incomplete gear, 34-pinion, 35-second motor, 36-first linkage ball joint and 37-second linkage ball joint.

Detailed Description

The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1 to 5, a sand screening device for road and bridge construction comprises a first sand screening net 9, a second sand screening net 11 and a sand screening box body 25, wherein the sand screening box body 25 is installed on a support 30, a feeding hopper 1 is installed at the top of the sand screening box body 25, the bottom of the feeding hopper 1 is communicated with a crushing box 3, a pair of squeeze rollers 2 are installed in the crushing box 3, the roller shafts of the squeeze rollers 2 are connected through mutually meshed gears, the roller shaft of one squeeze roller 2 is connected with a driving shaft 26 through a coupler, the driving shaft 26 is connected with a motor shaft of a first motor 27, and under the driving of the first motor 27, the pair of squeeze rollers 2 in the crushing box 3 rotate, the squeeze roller 2 on the left side rotates clockwise, and the squeeze roller 2 on the right side rotates anticlockwise, so that sand grains falling from the feeding hopper 1 above fall from top to bottom; the gap between the pair of squeezing rollers 2 is 5-20mm, which is convenient for caking and crushing the sand particle plate with the diameter of more than two centimeters.

The bottom of the crushing box 3 is provided with a sand falling port 4, a first sand screening net 9 is arranged below the sand falling port 4, the first sand screening net 9 is arranged on a blocking frame 8, two sides of the blocking frame 8 are connected with telescopic rods 6, the top of each telescopic rod 6 is fixed to the top of a sand screening box body 25 through rivets 5, a tension spring 7 is connected between the top wall of the sand screening box body 25 and the blocking frame 8, and the blocking frame 8 and the first sand screening net 9 arranged in the blocking frame 8 are suspended below the crushing box 3 under the tension of the tension spring 7;

in order to facilitate discharge of large sand particles intercepted by the first sand sieving net 9, preferably, in this embodiment, the first sand sieving net 9 is obliquely arranged in the blocking frame 8, the inclination angle of the first sand sieving net 9 is 15 ° to 30 °, a guide plate 10 is arranged below the bottom side of the first sand sieving net 9, and the bottom side of the guide plate 10 is connected with a first coarse sand hopper 28, so that the large sand particles intercepted by the first sand sieving net 9 can be conveniently discharged.

A second sand screening net 11 is arranged below the first sand screening net 9, a deformation screen 13 is arranged in the middle of the second sand screening net 11, two ends of the second sand screening net 11 are fixed on a sand screening frame 12, the bottom of the sand screening frame 12 is installed on a sliding block 14, the bottom of the sliding block 14 is connected with a guide sleeve 16, the guide sleeve 16 is arranged on a guide rod 18 in a sliding manner, the number of the guide rods 18 is two, the guide rods 18 are arranged in parallel, the guide rods 18 are distributed below the sliding block 14, two ends of the guide rod 18 are connected with fixing frames 17, the fixing frames 17 are fixed on the inner wall of a sand screening box body 25, and a compression spring 15 is sleeved on the guide rod;

the number of the sliding blocks 14 is two, the two sliding blocks are distributed on two sides of the fixed seat 24, the fixed seat 24 is fixed in the middle of the guide rod 18, a rotating shaft 32 is rotatably arranged in the fixed seat 24, the top of the rotating shaft 32 is connected with a linkage disc 31, two sides of the linkage disc 31 are connected with linkage arms 21, the linkage arms 21 are connected with linkage rods through first linkage ball joints 36, the linkage rods are connected with one end of the connecting rod 20 through second linkage ball joints 37, and the other end of the connecting rod 20 is connected with the sliding blocks 14;

an incomplete gear 33 is installed at the bottom of the rotating shaft 32, the side face of the incomplete gear 33 is meshed with a pinion 34, the pinion 34 is installed on a motor shaft of a second motor 35, the second motor 35 is installed in a driving box at the bottom of the fixing seat 24, the pinion 34 is driven to rotate by the motor shaft of the second motor 35, the incomplete gear 33 and the rotating shaft 32 are driven to rotate, the rotating shaft 32 drives the linkage arm 21 to move through the linkage disc 31, and the sliding block 14 is pushed to slide towards two sides, so that the second sand screening net 11 on the sand screening frame 12 vibrates, and sand grains on the second sand screening net 11 are screened.

The second sand screening net 11 is obliquely arranged, and a second coarse sand hopper 29 is arranged at the bottom side of the second sand screening net 11 and used for discharging large-particle sand particles intercepted and filtered by the second sand screening net 11.

The bottom of the sand sieving box body 25 is connected with the collecting hopper 19, the bottom of the collecting hopper 19 is connected with the sand discharging pipe 22, the sand discharging pipe 22 is provided with the discharging valve 23, and the fine sand collected in the collecting hopper 19 can be discharged by opening the discharging valve 23.

Example 2

A road and bridge construction uses the sand screening device, use the electric cylinder to replace incomplete gear 33, pinion 34 and second electrical machinery 35 constituent drive unit installed in the bottom of the rotating shaft 32 in embodiment 1; install electric cylinder between slider 14 and fixing base 24, electric cylinder's telescopic link length adjustment to make the distance adjustment between slider 14 and the fixing base 24, and drive the slider 14 synchronous motion of the 24 opposite sides of fixing base through linkage arm 21 and linkage dish 31, thereby make second screening sand net 11 produce the vibration, screen the grains of sand.

The rest of the structure of this example is the same as example 1.

The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.

Claims

1. A sand screening device for road and bridge construction comprises a first sand screening net (9), a second sand screening net (11) and a sand screening box body (25), wherein a feeding hopper (1) is installed at the top of the sand screening box body (25), the bottom of the feeding hopper (1) is communicated with a crushing box (3), a sand falling port (4) is formed in the bottom of the crushing box (3), a first sand screening net (9) is arranged below the sand falling port (4), a second sand screening net (11) is arranged below the first sand screening net (9), the sand screening device is characterized in that a deformation screen (13) is arranged in the middle of the second sand screening net (11), two ends of the second sand screening net (11) are fixed on a sand screening frame (12), the bottom of the sand screening frame (12) is installed on a sliding block (14), a guide sleeve (16) is connected to the bottom of the sliding block (14), the guide sleeve (16) is arranged on a guide rod (18) in a sliding mode, the guide rods (18) are arranged in parallel, and the guide rods (18) are distributed below, two ends of the guide rod (18) are connected with a fixed frame (17), the fixed frame (17) is fixed on the inner wall of the sand sieving box body (25), and a compression spring (15) is sleeved on the guide rod (18) between the fixed frame (17) and the guide sleeve (16);

the quantity of slider (14) is two and distributes in the both sides of fixing base (24), and fixing base (24) are fixed in guide arm (18) middle part, and fixing base (24) inside is rotated and is provided with axis of rotation (32), and linkage dish (31) are connected at axis of rotation (32) top, and linkage dish (31) both sides are connected with linkage arm (21), and linkage arm (21) are through first linkage ball joint (36) connection gangbar, and the gangbar passes through the one end that second linkage ball joint (37) connect connecting rod (20), and slider (14) are connected to the other end of connecting rod (20).

2. The road and bridge construction sand screening device according to claim 1, wherein the sand screening box body (25) is installed on a support (30), a pair of squeeze rollers (2) are installed in the crushing box (3), the roll shafts of the squeeze rollers (2) are connected through gears meshed with each other, the roll shaft of one squeeze roller (2) is connected with a driving shaft (26) through a coupler, and the driving shaft (26) is connected with a motor shaft of a first motor (27).

3. The sand screening apparatus for road and bridge construction according to claim 2, wherein the left squeeze roll (2) of the pair of squeeze rolls (2) rotates clockwise, and the right squeeze roll (2) rotates counterclockwise.

4. The sand screening device for road and bridge construction according to claim 3, wherein the gap between the pair of squeeze rolls (2) is 5-20 mm.

5. The road and bridge construction sand screening device according to claim 1, wherein the first sand screening net (9) is installed on the blocking frame (8), telescopic rods (6) are connected to two sides of the blocking frame (8), the tops of the telescopic rods (6) are fixed to the tops of the sand screening box bodies (25) through rivets (5), and tension springs (7) are connected between the top walls of the sand screening box bodies (25) and the blocking frame (8).

6. The road and bridge construction sand screening device according to claim 5, wherein the first sand screening net (9) is obliquely arranged in the blocking frame (8), the inclination angle of the first sand screening net (9) is 15-30 degrees, a guide plate (10) is arranged below the bottom side of the first sand screening net (9), and the bottom side of the guide plate (10) is connected with a first coarse sand hopper (28).

7. The sand screening device for road and bridge construction according to claim 6, wherein the second sand screening net (11) is obliquely arranged and a second coarse sand hopper (29) is arranged at the bottom side thereof.

8. The sand screening device for road and bridge construction according to claim 7, wherein the bottom of the sand screening box body (25) is connected with the collecting hopper (19), the bottom of the collecting hopper (19) is connected with the sand discharge pipe (22), and the sand discharge pipe (22) is provided with the discharge valve (23).

9. The road and bridge construction sand screening device according to any one of claims 1 to 8, wherein the bottom of the rotating shaft (32) is provided with an incomplete gear (33), the side surface of the incomplete gear (33) is engaged with a pinion (34), the pinion (34) is arranged on a motor shaft of a second motor (35), and the second motor (35) is arranged in a driving box at the bottom of the fixed seat (24).

10. The sand screening apparatus for road and bridge construction according to claim 9, wherein an electric cylinder is used instead of a driving means consisting of a partial gear (33), a pinion (34) and a second motor (35) installed at the bottom of the rotating shaft (32); the electric cylinder is arranged between the sliding block (14) and the fixed seat (24).