CN110404759B

CN110404759B - Convenient screening sand device for building engineering who removes transportation

Info

Publication number: CN110404759B
Application number: CN201910652263.3A
Authority: CN
Inventors: 陈治学
Original assignee: Shenzhen Huishen Boyue Wisdom Construction Technology Co ltd
Current assignee: Guangdong pilot Intelligent Construction Technology Co.,Ltd.
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2021-01-15
Anticipated expiration: 2039-07-19
Also published as: CN110404759A

Abstract

The invention relates to a sand screening device for construction engineering, which is convenient to move and transport and comprises a sand screening mechanism, a sand screening mechanism and a sand screening mechanism, wherein the sand screening mechanism comprises a base frame, a hopper, a roller screen cylinder and a conveying assembly, the hopper is fixedly arranged at the upper end of the base frame, the roller screen cylinder is rotatably arranged on the base frame, the conveying assembly is used for conveying finished fine sand, the discharge end of the hopper extends into the feed end of the roller screen cylinder, and the conveying assembly is arranged below the roller screen cylinder; the moving mechanism comprises a vehicle body and a loading assembly used for installing the sand screening mechanism, the vehicle body comprises a vehicle frame, a vehicle head arranged at one end of the vehicle frame and wheels rotatably arranged at the lower end of the vehicle frame, the loading assembly comprises a loading plate rotatably arranged on the vehicle frame and a traction plate slidably arranged on the loading plate, a first driving part for driving the loading plate to turn over is arranged on the vehicle frame, and a second driving part for driving the traction plate to slide is arranged on the loading plate. The invention has the advantage of convenient movement and transportation.

Description

Convenient screening sand device for building engineering who removes transportation

Technical Field

The invention relates to the technical field of equipment for construction, in particular to a sand screening device for construction engineering, which is convenient to move and transport.

Background

In construction sites such as highways, bridges, houses and the like, sand screening is an indispensable work. The earliest screening works, usually by manually using a shovel to throw the sand to be screened over the screen, using the natural slope of the screen to screen out the fine sand.

With the development of mechanization, various sand screening devices are born. Among them, the most widely used are sand screening machines, which mainly include drum-type sand screening machines, water-washing drum-type sand screening machines, vibrating screen type sand screening machines, etc. The drum-type sand screening machine is characterized in that the drum-type sand screening machine imitates the working principle that sand is screened by an inclined screen, sand to be screened is placed into an inclined drum-type screening drum, and sand materials are enabled to repeatedly roll and slide so as to be fully dispersed and separated.

However, in the actual use process, due to the fact that the sand screening machine is large in size, heavy in weight and difficult to move, workers have to place the sand screening machine at a position far away from a construction area of a construction site so as to reduce movement of the sand screening machine. However, due to the arrangement, in the construction process, the screened sand has to be transported back and forth by workers, so that the labor intensity of the workers is increased, and the construction efficiency of the construction site is reduced.

Disclosure of Invention

The invention aims to provide a sand screening device for construction engineering, which is convenient to move and transport and has the advantage of convenient movement and transport.

The above object of the present invention is achieved by the following technical solutions:

a conveniently remove screening sand device for building engineering of transportation includes:

the sand screening mechanism comprises a base frame, a hopper fixedly arranged at the upper end of the base frame, a roller screen drum rotatably arranged on the base frame and a conveying assembly for conveying finished fine sand, wherein the discharge end of the hopper extends into the feed end of the roller screen drum, and the conveying assembly is arranged below the roller screen drum;

the moving mechanism comprises a vehicle body and a loading assembly used for installing the sand screening mechanism, the vehicle body comprises a frame, a vehicle head arranged at one end of the frame and wheels rotatably arranged at the lower end of the frame, the loading assembly comprises a loading plate rotatably arranged on the frame and a traction plate slidably arranged on the loading plate, a first driving part used for driving the loading plate to turn over is arranged on the frame, a second driving part used for driving the traction plate to slide is arranged on the loading plate,

the loading plate is provided with a first hydraulic cylinder, the loading plate is provided with a first rotating axis, the loading plate is provided with a second rotating axis, the two sides of the loading plate adjacent to the rotating axis are respectively provided with a traction assembly, the traction assembly comprises a second hydraulic cylinder which is rotatably connected with the loading plate, the rotating axis of the second hydraulic cylinder is positioned at one end, far away from the rotating axis, of the loading plate, the second hydraulic cylinder is provided with a second piston rod, the sliding direction of the second piston rod is the same as the sliding direction of the traction plate, the end part of the second piston rod rotates to be provided with a hooking part used for hooking the base frame, and the loading plate is provided.

By adopting the technical scheme, the first driving part drives the loading plate to rotate so that the loading plate is inclined downwards along the direction close to the sand screening mechanism, then the first hydraulic cylinder drives the first piston rod to slide so that the hooking part is hooked at one end of the base frame close to the frame, then the third driving part drives the first hydraulic cylinder to rotate so that one end of the base frame close to the frame is lifted, then the second driving part drives the traction plate to slide so that the traction plate is abutted against the lower end of the base frame, and then the first hydraulic cylinder drives the first piston rod to slide reversely so as to pull the base frame to move towards the frame;

when the base frame is completely positioned on the traction plate, the first driving part drives the loading plate to rotate reversely so as to enable the loading plate to be parallel to the ground, the second driving part drives the traction plate to slide reversely, and the base frame is separated from the hooking part and then is completely placed on the loading plate along with the traction plate;

therefore, the sand screening mechanism and the moving mechanism are detached and installed, and when the sand screening mechanism is installed on the moving mechanism, the sand screening mechanism is convenient and fast to move and transport.

The invention is further configured to: the conveying assembly comprises a sand guide plate arranged on the base frame and a sand conveying plate with one end connected with the base frame,

the number of the sand conveying plates is two, the two sand conveying plates are positioned at two opposite sides of the sand guide plate, the rotating axes of the two sand conveying plates are positioned at two opposite sides of the base frame,

at least two sand conveying rotary rollers are rotatably arranged on the sand conveying plate, a conveying belt is coated on the sand conveying rotary rollers, a first driving motor for driving the sand conveying rotary rollers to rotate is fixedly arranged on the sand conveying plate,

the sand guide plate comprises two guide plate bodies, one end of one guide plate body is fixedly connected to one end of the other guide plate body, the other end of one guide plate body extends to the position above one sand conveying plate, and the other end of the other guide plate body extends to the position above the other sand conveying plate.

Through adopting above-mentioned technical scheme, the fine sand of finished product that the screening dropped in the roller screen section of thick bamboo slips respectively under the effect of leading the sand board and send the sand board to two for the fine sand of finished product can convey the both sides that the bed frame is relative simultaneously, is convenient for carry husky to two fortune husky cars simultaneously, has improved the work efficiency of this screening sand device from this.

The invention is further configured to: the included angle alpha between the two guide plate bodies is larger than 90 degrees and smaller than 180 degrees.

Through adopting above-mentioned technical scheme, be the obtuse angle setting between two baffle plate bodies of leading husky board, enlarge the husky scope of leading husky board.

The invention is further configured to: fixed being provided with on the bed frame is used for control lead husky board pivoted control part, the control part is including rotating the pivot of connecting in the bed frame, the pivot is fixed to be set up in the junction of two baffle plate bodies, the horizontal extending direction of pivot with the horizontal extending direction of sending the husky board is the same, sliding connection has the locking block on the bed frame, be provided with the confession along its circumference on the excircle face of pivot the locking groove of locking block sliding embedding, the locking groove is kept away from the fixed third elastic component that is provided with of one end of pivot, the tip fixed connection of third elastic component in the locking block.

Through adopting above-mentioned technical scheme, locking piece embedding locking groove is in order to restrict the rotation of pivot to the rotation angle of control sand guide plate guarantees sand guide plate and leads husky stability.

The invention is further configured to: the conveying assembly comprises a sand blocking plate fixedly arranged on the base frame, the sand blocking plate is positioned on one side, away from the sand guide plate, of the sand conveying plate, and the lower end of the sand blocking plate is positioned above the sand conveying plate.

Through adopting above-mentioned technical scheme, the setting of fender sand board avoids the fine sand of finished product to break away from when leading the sand board because of too big removal of speed surpasss the transportation scope of sending the sand board, has improved this conveyor components's work efficiency.

The invention is further configured to: the traction plate is rotatably provided with a plurality of traction rollers which are distributed at intervals along the moving direction of the traction plate, and the traction plate is provided with a limiting part for limiting the rotation of the traction rollers.

Through adopting above-mentioned technical scheme, the setting of pulling commentaries on classics roller is convenient for pull the subassembly pulling screening sand mechanism.

The invention is further configured to: the limiting part comprises a ratchet wheel coaxially and fixedly arranged on the traction rotating roller, a pawl of which the end part is matched with the ratchet wheel and a limiting block for hinging the pawl, the limiting block slides along the axial direction of the traction rotating roller so that the end part of the pawl is abutted against or separated from the ratchet wheel, and a first elastic piece for providing elastic force of the end part of the pawl towards one side of the ratchet wheel is arranged on the limiting block.

By adopting the technical scheme, when the sand screening mechanism needs to be installed on the moving mechanism, the traction rotating roller can only move along the direction close to the rotation axis of the second hydraulic cylinder through the matching of the ratchet wheel and the pawl, so that the hooking part can hook the traction sand screening mechanism more conveniently;

when the sand screening mechanism needs to be separated from the moving mechanism, the sliding limiting block enables the ratchet wheel and the pawl to be separated, and the traction rotating roller is in a free rotating state at the moment, so that the sand screening mechanism can conveniently move on the traction rotating roller along the direction far away from the second hydraulic cylinder.

The invention is further configured to: the traction roller is coated with a traction belt, and the traction belt is provided with anti-skid grains.

Through adopting above-mentioned technical scheme, the portion of colluding of being convenient for drives screening sand mechanism and removes traction belt's setting.

The invention is further configured to: collude hold the portion including articulated connect in collude holding the piece and fixed set up in of second piston rod end portion the second elastic component, collude the rotation axis of holding the piece with the rotation axis of loading the board is perpendicular, collude and hold the piece and keep away from one side of second piston rod has the guide inclined plane, the direction that the guide inclined plane is close to the second piston rod is to being close to the slope of loading board center, the second elastic component with collude holding a piece fixed connection with providing collude and hold the piece orientation the elasticity of traction plate one side.

Through adopting above-mentioned technical scheme, when colluding the one end that holds the piece and keep away from the second piston rod and contradict with the bed frame, collude and hold the piece and take place to rotate under the effect on guide inclined plane, when the bed frame crossed the tip on guide inclined plane, collude and hold the piece and collude the bed frame under the effect of second elastic component and hold in colluding and hold the piece, the second piston rod pulling of being convenient for pulls screening sand mechanism.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the sand screening mechanism and the moving mechanism are convenient and quick to detach and install, and when the sand screening mechanism is installed on the moving mechanism, the sand screening device is convenient and quick to move and transport;

2. finished fine sand falling from the screening in the roller screen cylinder slides to the two sand conveying plates under the action of the sand guide plates respectively, so that the finished fine sand can be conveyed to two opposite sides of the base frame at the same time, and the sand conveying of two sand conveying vehicles is facilitated, and the working efficiency of the sand screening device is improved.

Drawings

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

FIG. 2 is a schematic view of the overall structure of the moving mechanism;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic bottom view of the moving mechanism;

FIG. 5 is a schematic view of the mounting structure of the moving mechanism;

FIG. 6 is a schematic structural view of the hook portion;

FIG. 7 is a cross-sectional structural schematic of the traction plate;

FIG. 8 is a schematic view of the installation structure of the defining part;

FIG. 9 is a schematic view of the installation structure of the sand screening mechanism;

FIG. 10 is a schematic view of the sand guide plate in a bidirectional sand guiding state;

FIG. 11 is a schematic view of a one-way sand-guiding state of the sand-guiding plate;

fig. 12 is a schematic configuration diagram of the control unit.

In the figure, 1, a sand screening mechanism; 11. a base frame; 12. a hopper; 13. a roller screen cylinder; 131. a third drive motor; 132. a guide rail; 14. a delivery assembly; 141. a sand guide plate; 142. a sand conveying plate; 1421. sand feeding and roller rotating; 1422. a conveyor belt; 1423. a first drive motor; 143. a control unit; 1431. a rotating shaft; 1432. a locking groove; 1433. a locking block; 1434. a third elastic member; 144. a sand guard; 2. a moving mechanism; 21. a vehicle body; 211. a frame; 212. a headstock; 213. a wheel; 22. a loading assembly; 221. a loading plate; 222. a traction plate; 2221. a traction roller; 2222. a limiting part; 22221. a ratchet wheel; 22222. a pawl; 22223. a limiting block; 22224. a first elastic member; 223. a first driving section; 2231. a first hydraulic cylinder; 2232. a first piston rod; 2233. a first slider; 224. a second driving section; 2241. a screw; 2242. a second drive motor; 23. a traction assembly; 231. a second hydraulic cylinder; 232. a second piston rod; 233. a hooking part; 2331. a hooking block; 2332. a second elastic member; 2333. a guide ramp; 234. a third driving section; 2341. a third hydraulic cylinder; 2342. a third piston rod.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the sand screening device for construction engineering, which is convenient for mobile transportation and is disclosed by the invention, comprises a sand screening mechanism 1 for screening and obtaining fine sand of a finished product and a moving mechanism 2 for transporting the sand screening mechanism 1. The sand screening mechanism 1 can be fixedly placed on the moving mechanism 2 for sand screening, and can also be detached from the moving mechanism 2 for sand screening.

Referring to fig. 9 and 10, the sand screening mechanism 1 includes a base frame 11, a hopper 12 fixedly disposed at an upper end of the base frame 11, a drum screen 13 rotatably disposed at the base frame 11, and a conveying assembly 14 for conveying a finished fine sand.

The drum screen includes a central rotating shaft 1431 rotatably connected to the base frame 11, a screen cylinder fixedly disposed outside the central rotating shaft 1431, and a third driving motor 131 driving the central rotating shaft 1431 to rotate. The screen cylinder has a feed end and a discharge end. The discharge end of the hopper 12 extends into the feed end of the trommel drum 13. The discharge end of the screen drum is provided with a guide rail 132 for guiding waste slag such as stones. The guide rail 132 is fixedly connected to the base frame 11. The trommel feed end is at a higher elevation than its discharge end, i.e., the central shaft 1431 is inclined downwardly in a direction away from the hopper 12. The third driving motor 131 is fixedly connected with the base frame 11, and an output shaft of the third driving motor 131 is coaxially and fixedly connected with the central rotating shaft 1431 of the roller screen drum 13.

Further, a conveyor assembly 14 is mounted below the roller screen drum 13. The transportation assembly 14 includes a sand guide plate 141 rotatably disposed on the base frame 11, a sand conveying plate 142 having one end connected to the base frame 11, and a sand blocking plate 144 fixedly disposed on the base frame 11.

The sand conveying plate 142 is rectangular, one short side of the sand conveying plate 142 is fixedly connected to the base frame 11, and the other short side of the sand conveying plate 142 extends out of the base frame 11. The sand conveying plate 142 is inclined upward in a direction away from the base frame 11. The number of the sand feeding plates 142 is two, and the two sand feeding plates 142 are divided into two sides which are opposite to the sand guiding plate 141. The rotation axes of the two sand conveying plates 142 are located at opposite sides of the base frame 11, and the other short sides of the two sand conveying plates 142 respectively protrude from opposite ends of the base frame 11 so that the finished fine sand can be simultaneously transferred to the opposite sides of the base frame 11.

At least two sand conveying rotating rollers 1421 are rotatably arranged on the sand conveying plate 142, the axial direction of each sand conveying rotating roller 1421 is parallel to the short side of the sand conveying plate 142, and all the sand conveying rotating rollers 1421 are distributed at intervals along the length direction of the sand conveying plate 142. The sand feeding roller 1421 is coated with a conveying belt 1422, and the conveying belt 1422 is provided with anti-skid grains. A first driving motor 1423 for driving the sand feeding roller 1421 to rotate is fixedly arranged on the sand feeding plate 142. A synchronizing wheel is coaxially and fixedly arranged on the first driving motor 1423, a driven wheel is coaxially and fixedly arranged on the sand feeding rotating roller 1421, and a synchronous belt is wrapped on the synchronizing wheel and the driven wheel. Alternatively, the output shaft of the first driving motor 1423 is coaxially and fixedly connected to the sand feeding roller 1421.

Referring to fig. 10 and 11, the sand guide plate 141 is located between the long sides of the two sand feeding plates 142. The sand guide plate 141 includes two guide plate bodies, one end of one of the guide plate bodies is fixedly connected to one end of the other guide plate body, the other end of one of the guide plate bodies extends to the upper side of one of the sand conveying plates 142, and the other end of the other guide plate body extends to the upper side of the other sand conveying plate 142. The included angle alpha between the two guide plate bodies is larger than 90 degrees and smaller than 180 degrees. The two guide plate bodies of the sand guide plate 141 are arranged at an obtuse angle to expand the sand guide range of the sand guide plate 141.

Referring to fig. 10 and 12, a control portion 143 for controlling the sand guiding plate 141 to rotate to achieve one-sided sand guiding or two-sided sand guiding is fixedly disposed on the base frame 11. The control portion 143 includes a rotating shaft 1431 rotatably connected to the base frame 11, the rotating shaft 1431 is fixedly disposed at a connection position of the two guide plate bodies, and a horizontal extending direction of the rotating shaft 1431 is the same as a horizontal extending direction of the sand conveying plate 142. The base frame 11 is slidably connected with a locking block 1433, a locking groove 1432 for the locking block 1433 to be slidably inserted is arranged on the outer circumferential surface of the rotating shaft 1431 along the circumferential direction, a third elastic member 1434 is fixedly arranged at one end of the locking groove 1432 far away from the rotating shaft 1431, and the end of the third elastic member 1434 is fixedly connected to the locking block 1433. The third elastic member 1434 is a compression spring or a tension spring.

The number of the locking grooves 1432 is 3, and the locking blocks 1433 are respectively inserted into one of the three locking grooves 1432, so that the sand guiding plate 141 is in a bidirectional sand guiding state or a unidirectional sand guiding state for any one of the sand feeding plates 142. The locking block 1433 is inserted into the locking groove 1432 to limit the rotation of the rotation shaft 1431, thereby controlling the rotation angle of the sand guide plate 141 and ensuring the sand guide stability of the sand guide plate 141.

When the opening of the sand guide plate 141 faces the ground right below, the end parts of the other ends of the two guide plate bodies face the end surfaces of the two sand conveying plates 142 respectively, and at the moment, the sand guide plate 141 is in a bidirectional sand guide state;

when the opening of the sand guide plate 141 faces one side of the roller screen cylinder 13, the other end of one of the guide plate bodies faces the end face of one of the sand feeding plates 142, and the other end of the other guide plate body faces the side of the roller screen cylinder 13 far away from the sand feeding plate 142, at this time, the sand guide plate 141 only feeds the finished fine sand to the sand feeding plate 142, so that the sand guide plate 141 is in a unidirectional sand guiding state.

Further, the sand guard 144 is located on a side of the sand feeding plate 142 away from the sand guide plate 141, and a lower end of the sand guard 144 is located above the sand feeding plate 142. The sand guard 144 slopes downwardly in a direction adjacent the sand feed plate 142.

Referring to fig. 2, the moving mechanism 2 includes a vehicle body 21 and a loading assembly 22 for mounting the sand screening mechanism 1. The vehicle body 21 includes a frame 211, a head 212 provided at one end of the frame 211, and wheels 213 rotatably provided at a lower end of the frame 211. The loading assembly 22 is located at an end of the frame 211 remote from the nose 212.

Referring to fig. 4 and 5, the loading assembly 22 includes a loading plate 221 rotatably disposed on the frame 211 and a traction plate 222 slidably disposed on the loading plate 221. The rotation axis of the loading plate 221 is located at an end of the frame 211 away from the vehicle head 212, and the traction plate 222 slides in a direction approaching or moving away from the vehicle head 212.

Further, the frame 211 is provided with a first driving portion 223 for driving the loading plate 221 to be reversed.

The first driving unit 223 includes a first hydraulic cylinder 2231 fixedly provided to the frame 211, and the first hydraulic cylinder 2231 has a first piston rod 2232. The first piston rod 2232 slides in the vertical direction, the lower end surface of the loading plate 221 is connected with a first sliding block 2233 in a sliding manner, the sliding direction of the first sliding block 2233 is the same as that of the traction plate 222, and the end of the first piston rod 2232 is hinged to the first sliding block 2233.

Alternatively, the first driving unit 223 includes a first hydraulic cylinder 2231 rotatably disposed on the frame 211, a rotation axis of the first hydraulic cylinder 2231 is located at one end of the frame 211 close to the vehicle head 212 and is parallel to a rotation axis of the loading plate 221, the first hydraulic cylinder 2231 has a first piston rod 2232, an end of the first piston rod 2232 is hinged to a lower end surface of the loading plate 221, and a hinge point of the first piston rod 2232 and the loading plate 221 is located on a side of the loading plate 221 away from the rotation axis thereof.

The first hydraulic cylinder 2231 causes the first piston rod 2232 to slide, thereby causing the load plate 221 to rotate.

Referring to fig. 5, the loading plate 221 is provided with a second driving part 224 for driving the traction plate 222 to slide. The second driving unit 224 includes a screw 2241 screwed to the traction plate 222 and a second driving motor 2242 for driving the screw 2241 to rotate, an axis of the screw 2241 is the same as a sliding direction of the traction plate 222, the second driving motor 2242 is fixedly disposed at one end of the traction plate 222 close to the vehicle head 212, and an output shaft of the second driving motor 2242 is coaxially and fixedly connected with the screw 2241. The second driving motor 2242 is activated to rotate the screw 2241, so as to slide the traction plate 222.

Further, the loading plate 221 has traction assemblies 23 mounted on both sides adjacent to its axis of rotation. The pulling assembly 23 comprises a second hydraulic cylinder 231 rotatably connected to the loading plate 221, the rotation axis of the second hydraulic cylinder 231 is located at one end of the loading plate 221 away from the rotation axis, the second hydraulic cylinder 231 is provided with a second piston rod 232, and the sliding direction of the second piston rod 232 is the same as the sliding direction of the pulling plate 222. The second hydraulic cylinder 231 drives the second piston rod 232 to slide.

Referring to fig. 3, the loading plate 221 is provided with a third driving portion 234 for driving the second hydraulic cylinder 231 to rotate.

The third driving unit 234 includes a third hydraulic cylinder 2341 rotatably provided on the loading plate 221, the rotation axis of the third hydraulic cylinder 2341 is located at one end of the loading plate 221 near the rotation axis thereof, and the rotation axis of the third hydraulic cylinder 2341 is parallel to the rotation axis of the loading plate 221. The third hydraulic cylinder 2341 has a third piston rod, and the end of the third piston rod is hinged to the second hydraulic cylinder 231.

Alternatively, the third driving unit 234 includes a third hydraulic cylinder 2341 fixedly provided on the loading plate 221, the third hydraulic cylinder 2341 has a third piston rod, and the sliding direction of the third piston rod is perpendicular to the loading plate 221. The lower end of the second hydraulic cylinder 231 is slidably provided with a second slider, and the sliding direction of the second slider is the same as the sliding direction of the second piston rod 232. The third piston rod is hinged to the second piston rod 232.

The third hydraulic cylinder 2341 drives the third piston rod to slide, thereby driving the second piston rod 232 to turn.

Referring to fig. 5 and 6, an end of the second piston rod 232 is rotatably provided with a hooking portion 233 for hooking the base frame 11.

The hook part 233 includes a hook block 2331 hinged to an end of the second piston rod 232 and a second elastic member 2332 fixedly disposed at an end of the second piston rod 232, a rotation axis of the hook block 2331 is perpendicular to a rotation axis of the loading plate 221, a guide inclined surface 2333 is provided at a side of the hook block 2331 away from the second piston rod 232, the guide inclined surface 2333 is inclined toward a center of the loading plate 221 in a direction close to the second piston rod 232, and the second elastic member 2332 is fixedly connected to the hook block 2331 to provide an elastic force to the hook block 2331 toward a side of the traction plate 222. The second elastic member 2332 is a torsion spring.

When the end of the hook block 2331 away from the second piston rod 232 abuts against the base frame 11, the hook block 2331 rotates under the action of the guiding inclined plane 2333. When the base frame 11 passes over the end of the guide slope 2333, the hook block 2331 hooks the base frame 11 to the hook block 2331 by the second elastic member 2332.

Referring to fig. 7, a plurality of pulling rollers 2221 are rotatably disposed on the pulling plate 222, the pulling rollers 2221 have anti-slip patterns, the axial direction of the pulling rollers 2221 is parallel to the direction of the rotation axis of the loading plate 221, and the plurality of pulling rollers 2221 are spaced apart from each other along the moving direction of the pulling plate 222. The traction roller 2221 is covered with a traction belt having anti-skid grains.

Referring to fig. 8, the traction plate 222 is provided with a restriction portion 2222 for restricting rotation of the traction roller 2221. The limiting part 2222 includes a ratchet 22221 coaxially and fixedly disposed on the traction roller 2221, a pawl 22222 with an end portion matched with the ratchet 22221, and a limiting block 22223 for the pawl 22222 to hinge, the limiting block 22223 slides along the axial direction of the traction roller 2221 to make the end portion of the pawl 22222 abut against or disengage from the ratchet 22221, and the limiting block 22223 is provided with a first elastic member 22224 for providing an elastic force for the end portion of the pawl 22222 to face one side of the ratchet 22221. The first elastic member 22224 is a torsion spring, a compression spring, or a coil spring.

When the sand screening mechanism 1 needs to be mounted on the moving mechanism 2, the engagement of the ratchet 22221 and the pawl 22222 makes the pulling turn 2221 movable only in a direction close to the rotation axis of the second hydraulic cylinder 231.

When the sand sieving mechanism 1 needs to be disengaged from the moving mechanism 2, the limiting block 22223 is slid to disengage the ratchet wheel 22221 and the pawl 22222, and the pulling rotary roller 2221 is in a free rotation state, so that the sand sieving mechanism 1 moves on the pulling rotary roller 2221 in a direction away from the second hydraulic cylinder 231.

The implementation principle of the embodiment is as follows:

firstly, installation:

(1) the first driving portion 223 drives the loading plate 221 to rotate so that the loading plate 221 is inclined downward in a direction approaching the sand sieving mechanism 1;

(2) the second hydraulic cylinder 231 drives the second piston rod 232 to slide so that the hooking portion 233 is hooked at one end of the base frame 11 close to the frame 211;

(3) the third driving part 234 drives the second hydraulic cylinder 231 to rotate so as to lift one end of the base frame 11 close to the frame 211;

(4) the second driving part 224 drives the traction plate 222 to slide so that the traction plate 222 abuts against the lower end of the base frame 11;

(5) the second hydraulic cylinder 231 drives the second piston rod 232 to slide reversely to pull the base frame 11 to move towards the frame 211;

(6) sliding the stop block 22223 to engage the ratchet 22221 and the pawl 22222 so that the traction roller 2221 can only move in a direction approaching the headstock 212;

(7) when the base frame 11 is completely located on the traction plate 222, the first driving part 223 drives the loading plate 221 to rotate reversely so that the loading plate 221 is parallel to the ground;

(8) the second driving part 224 drives the traction plate 222 to slide reversely, and the base frame 11 is completely placed on the loading plate 221 following the traction plate 222 after being separated from the hooking part 233;

(II) disassembling:

(1) the second driving part 224 drives the traction plate 222 to slide until the base frame 11 is hooked on the hooking part 233;

(2) the first driving portion 223 drives the loading plate 221 to rotate so that the loading plate 221 is inclined downward in a direction approaching the sand sieving mechanism 1;

(3) the second hydraulic cylinder 231 drives the second piston rod 232 to slide so as to cooperate with the second driving portion 224 to drive the traction plate 222 to slide, so that the end of the traction plate 222 abuts against the ground;

(4) the hooking part 233 is disengaged from the base frame 11, and the stopper 22223 is moved to disengage the pawl 22222 from the ratchet 22221, thereby allowing the traction roller 2221 to rotate freely;

(5) the base frame 11 moves downward on the traction roller 2221 to abut against the ground;

(6) the vehicle body 21 is moved to disengage the base frame 11 from the traction plate 222.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a convenient screening sand device for building engineering who removes transportation which characterized in that includes:

the sand screening mechanism (1) comprises a base frame (11), a hopper (12) fixedly arranged at the upper end of the base frame (11), a roller screen drum (13) rotatably arranged on the base frame (11) and a conveying assembly (14) used for conveying finished fine sand, wherein the discharge end of the hopper (12) extends into the feed end of the roller screen drum (13), and the conveying assembly (14) is arranged below the roller screen drum (13);

the moving mechanism (2) comprises a vehicle body (21) and a loading assembly (22) used for installing the sand screening mechanism (1), wherein the vehicle body (21) comprises a vehicle frame (211), a vehicle head (212) arranged at one end of the vehicle frame (211) and wheels (213) rotatably arranged at the lower end of the vehicle frame (211), the loading assembly (22) comprises a loading plate (221) rotatably arranged on the vehicle frame (211) and a traction plate (222) slidably arranged on the loading plate (221), a first driving part (223) for driving the loading plate (221) to turn over is arranged on the vehicle frame (211), a second driving part (224) for driving the traction plate (222) to slide is arranged on the loading plate (221),

the two sides of the loading plate (221) adjacent to the rotation axis of the loading plate are respectively provided with a traction assembly (23), the traction assembly (23) comprises a second hydraulic cylinder (231) rotatably connected to the loading plate (221), the rotation axis of the second hydraulic cylinder (231) is located at one end of the loading plate (221) far away from the rotation axis of the loading plate, the second hydraulic cylinder (231) is provided with a second piston rod (232), the sliding direction of the second piston rod (232) is the same as that of the traction plate (222), the end of the second piston rod (232) is rotatably provided with a hooking part (233) used for hooking the base frame (11), and the loading plate (221) is provided with a third driving part (234) used for driving the second hydraulic cylinder (231) to rotate;

the conveying assembly (14) comprises a sand guide plate (141) arranged on the base frame (11) and a sand conveying plate (142) with one end connected to the base frame (11),

the number of the sand conveying plates (142) is two, the two sand conveying plates (142) are respectively positioned at two opposite sides of the sand guide plate (141), the rotating axes of the two sand conveying plates (142) are positioned at two opposite sides of the base frame (11),

the sand conveying plate (142) is rotatably provided with at least two sand conveying rotating rollers (1421), the sand conveying rotating rollers (1421) are coated with a conveying belt (1422), the sand conveying plate (142) is fixedly provided with a first driving motor (1423) for driving the sand conveying rotating rollers (1421) to rotate,

the sand guide plate (141) comprises two guide plate bodies, one end of one guide plate body is fixedly connected to one end of the other guide plate body, the other end of one guide plate body extends to the position above one sand conveying plate (142), and the other end of the other guide plate body extends to the position above the other sand conveying plate (142).

2. The sand screening device for construction engineering convenient for mobile transportation according to claim 1, wherein the included angle α between the two guide plate bodies is greater than 90 ° and less than 180 °.

3. The sand screening device for construction engineering convenient for mobile transportation according to claim 2, it is characterized in that a control part (143) for controlling the sand guide plate (141) to rotate is fixedly arranged on the base frame (11), the control part (143) comprises a rotating shaft (1431) which is rotatably connected with the base frame (11), the rotating shaft (1431) is fixedly arranged at the joint of the two guide plate bodies, the horizontal extending direction of the rotating shaft (1431) is the same as the horizontal extending direction of the sand conveying plate (142), a locking block (1433) is connected on the base frame (11) in a sliding way, a locking groove (1432) for the locking block (1433) to be embedded in a sliding way is arranged on the outer circular surface of the rotating shaft (1431) along the circumferential direction of the rotating shaft, a third elastic piece (1434) is fixedly arranged at one end of the locking groove (1432) far away from the rotating shaft (1431), the end of the third elastic member (1434) is fixedly connected to the locking block (1433).

4. The sand screening device for construction engineering convenient for mobile transportation according to claim 1, wherein the conveying assembly (14) comprises a sand blocking plate (144) fixedly arranged on the base frame (11), the sand blocking plate (144) is positioned on one side of the sand conveying plate (142) far away from the sand guide plate (141), and the lower end of the sand blocking plate (144) is positioned above the sand conveying plate (142).

5. The sand screening device for construction engineering convenient for mobile transportation according to claim 1, wherein a plurality of pulling rollers (2221) are rotatably arranged on the pulling plate (222), the plurality of pulling rollers (2221) are distributed at intervals along the moving direction of the pulling plate (222), and a limiting portion (2222) for limiting the rotation of the pulling rollers (2221) is arranged on the pulling plate (222).

6. The sand screening device for construction engineering convenient for mobile transportation according to claim 5, wherein the limiting part (2222) comprises a ratchet wheel (22221) coaxially and fixedly arranged on the traction roller (2221), a pawl (22222) with an end matched with the ratchet wheel (22221), and a limiting block (22223) for hinging the pawl (22222), the limiting block (22223) slides along the axial direction of the traction roller (2221) to enable the end of the pawl (22222) to abut against or separate from the ratchet wheel (22221), and a first elastic member (22224) for providing elastic force to the end of the pawl (22222) towards one side of the ratchet wheel (22221) is arranged on the limiting block (22223).

7. The sand screening device convenient for mobile transportation in building engineering as claimed in claim 5, wherein the traction roller (2221) is covered with a traction belt, and the traction belt has anti-skid lines.

8. The sand screening device for construction engineering convenient for mobile transportation as claimed in claim 1, wherein the hooking part (233) comprises a hooking block (2331) hinged to the end of the second piston rod (232) and a second elastic member (2332) fixedly arranged at the end of the second piston rod (232), the rotation axis of the hooking block (2331) is perpendicular to the rotation axis of the loading plate (221), one side of the hooking block (2331) far away from the second piston rod (232) is provided with a guiding inclined plane (2333), the guiding inclined plane (2333) is inclined towards the center of the loading plate (221) along the direction close to the second piston rod (232), and the second elastic member (2332) is fixedly connected with the hooking block (2331) to provide the elastic force of the hooking block (2331) towards the side of the traction plate (222).