CN210753624U

CN210753624U - Sand screening plate

Info

Publication number: CN210753624U
Application number: CN201921476489.4U
Authority: CN
Inventors: 屈新龙; 李强
Original assignee: Beijing Lupengda Env Engineering Co ltd
Current assignee: Beijing Lu Peng Da Construction Development Co.,Ltd.
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-16
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a sieve sand board, its technical scheme main points are: the material transferring device comprises two vertically arranged frame bodies and a sieve plate arranged on one side of each frame body, wherein a material bearing assembly for transferring materials on the back side of the sieve plate is arranged in each frame body; the material bearing assembly comprises a driving roller and a driven roller which are horizontally arranged at the bottom of a frame body and are arranged along the width direction of the sieve plate, two ends of the driven roller are rotatably connected with the two frame bodies, a material bearing belt used for bearing materials is arranged on the driving roller and the driven roller, one end of the material bearing belt is connected to the driving roller, the other end of the material bearing belt is wound on the driven roller, two ends of the driving roller are provided with a driving mechanism for driving the driving roller to reciprocate along the height direction of the sieve plate, and a springback assembly for driving the material bearing belt to return is arranged on the driven roller. The utility model has the advantages that: the space can be vacated automatically with the fine sand in sieve dorsal part to staff's extra physical demands have been reduced.

Description

Sand screening plate

Technical Field

The utility model relates to a building construction equipment field, concretely relates to sieve sand board.

Background

A sand screen is a tool for separating sand from larger stones or bricks. The sand screening device mainly comprises a frame body which is arranged on the ground and plays a role in fixing and supporting a sand screening plate, and a screening plate which is erected on the frame body and is used for separating stones and sand. The sand screening plate is simple in structure, convenient to install and detach, stable in work and convenient to operate, so that the sand screening plate is suitable for many occasions such as riverways, reservoirs, coal yards or construction sites.

However, when the worker uses the sand sieving plate, the fine sand sieved by the sand sieving plate can be accumulated in the region at the back side of the sand sieving plate, and when the accumulated fine sand is too much, the fine sand can contact the sieve plate, so that the effective working space of the sand sieving plate is reduced. In order to ensure that the sieve plate can work continuously, workers are often required to shovel away the fine sand accumulated on the back side of the sand sieving plate by using tools such as shovels and the like, so that the labor consumption of the workers is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sieve sand board, its advantage is: the space can be vacated automatically with the fine sand in sieve dorsal part to staff's extra physical demands have been reduced.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a sand screening plate comprises two vertically arranged frame bodies and a screening plate arranged on one side of each frame body, wherein a material bearing assembly for transferring materials on the back side of the screening plate is arranged in each frame body;

the material bearing assembly comprises a driving roller and a driven roller which are horizontally arranged at the bottom of a support body and are arranged along the width direction of the sieve plate, two ends of the driven roller are rotatably connected with the two support bodies, a material bearing belt used for bearing materials is arranged on the driving roller and the driven roller, one end of the material bearing belt is connected to the driving roller, the other end of the material bearing belt is wound on the driven roller, two ends of the driving roller are provided with a driving mechanism for driving the driving roller to reciprocate along the height direction of the sieve plate, and a springback assembly for driving the material bearing belt to return is arranged on the driven roller.

Through the technical scheme, the staff is when the sieve leaves the sand, the sand is separated and is accepted on holding the material area through the sieve of sieve, along with the piling up of sand, make the sand be close to the sieve more, thereby influence the sieve of sieve and leave efficiency, at this moment, staff's accessible actuating mechanism drives the drive roll rebound, thereby make and hold the material area and stretch out from the driven voller, and make and hold the material area and form an inclined plane, make the sand remove to the direction of driven voller because of the action of gravity, make the dorsal space of sieve is kept away from to the sand, from not influencing the sieve of sieve and leave efficiency. When actuating mechanism drive roll return, hold the material area and can be under the effect of resilience subassembly, roll up the collection on the driven voller once to satisfy the normal work that holds the material area.

The utility model discloses further set up to: the driving mechanism comprises a sliding rod and a screw rod which are respectively arranged at two ends of the driving roller, the sliding rod and the screw rod are parallel to each other, two ends of the sliding rod are fixedly connected with the frame body, two ends of the screw rod are rotatably connected with the frame body, one end of the screw rod is provided with a driving screw rod rotating driving motor, two ends of the driving roller are fixedly connected with a sleeve respectively, the two sliding sleeves are respectively sleeved on the sliding rod and the screw rod, and the inner peripheral surfaces of the sliding sleeves sleeved on the screw rod are provided with external threads matched with.

Through the technical scheme, when the driving mechanism works, the driving motor drives the screw rod to rotate, and the driving roller is driven to slide between the slide rod and the screw rod through the threaded matching of the screw rod and the sleeve and the limiting action between the other sleeve and the slide rod; the driving mechanism has simple structure and is convenient to maintain.

The utility model discloses further set up to: wear to be equipped with a fixed axle in the driven voller, the both ends and the both sides support body fixed connection of fixed axle, the subassembly that kick-backs is established two torsional springs on the fixed axle including the cover, and two torsional springs are located the both ends of driven voller respectively to the one end rigid coupling of torsional spring is on the fixed axle, and the other end rigid coupling of torsional spring is on the driven voller.

Through above-mentioned technical scheme, when the drive roll slided between slide bar and screw rod, can stretch and move the material-bearing belt to drive the rotation between driven voller and the fixed axle, thereby satisfy the bearing and the direction of material-bearing belt to husky material, when the drive roll return, the driven voller can be under the elastic force of torsional spring, can rotate to the opposite direction, thereby make the material-bearing belt at the time the book collect on the global of driven voller. The resilience assembly is simple in structure and remarkable in effect.

The utility model discloses further set up to: the two ends of the material bearing belt are detachably connected with the driven roller and the driving roller.

Through above-mentioned technical scheme, hold the material and take place wearing and tearing with the grit material for a long time, can cause the harm that holds the material area, will hold the material area and set up to can dismantle with the drive roll and be connected to be convenient for change the maintenance to holding the material area, thereby improved maintenance efficiency.

The utility model discloses further set up to: the outer peripheral surface of the driving roller is provided with a first clamping seam for accommodating the end part of the material bearing strip, and the outer peripheral surface of the driven roller is in threaded connection with a plurality of fixing screws for jacking the material bearing strip in the first clamping seam; the outer peripheral face of driven roller sets up the second screens seam that holds the material and take the tip, driven roller outer peripheral face threaded connection has a plurality of top to touch the bolt that holds the material in the second screens seam.

Through above-mentioned technical scheme, the setting of first screens seam and second screens seam is convenient for the staff to insert the tip that holds the material area and is established wherein to touch through the top of bolt, thereby make the tip that holds the material area press from both sides and establish in the gap of bolt and first screens seam and second screens seam. Thereby improving the fixing efficiency of the material bearing belt.

The utility model discloses further set up to: the sliding rod and the screw rod are respectively sleeved with two corrugated pipes, and the two corrugated pipes are respectively positioned on two sides of the sleeve.

Through the technical scheme, the arrangement of the corrugated pipe plays a role in protecting the slide rod and the screw rod, so that the influence of sand and stone on the slide rod and the screw rod is reduced, and the working stability of the driving mechanism is guaranteed.

The utility model discloses further set up to: a compression spring is arranged in the corrugated pipe, and two ends of the compression spring are fixedly connected to two ends of the corrugated pipe respectively.

Through above-mentioned technical scheme, because the drive roll can drive the flexible of bellows at the in-process that removes, in order to make the flexible efficiency of compression spring higher, so be provided with compression spring to the space that slide bar and screw rod exposed external environment has been reduced.

To sum up, the utility model discloses following beneficial effect has:

firstly, the fine sand on the back side of the sieve plate is automatically vacated. The worker can drive the driving roller to move upwards through the driving mechanism, so that the material bearing belt is stretched out of the driven roller and forms an inclined plane, sand moves towards the direction of the driven roller under the action of gravity, the sand is far away from the space on the back side of the sieve plate, and the sieving efficiency of the sieve plate is not influenced;

and secondly, the working stability of the driving mechanism is improved. The arrangement of the corrugated pipe has a protection effect on the slide rod and the screw rod, so that the influence of sand on the slide rod and the screw rod is reduced, and the working stability of the driving mechanism is guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of a sand screen;

FIG. 2 is a schematic view showing a structure of a driven roller of a driving roller;

FIG. 3 is a schematic structural view showing a driving mechanism;

FIG. 4 is a schematic view showing the operation of the driving mechanism;

fig. 5 is a schematic diagram showing the positional relationship between the bellows and the compression spring.

In the figure, 1, a frame body; 11. a fixed shaft; 2. a sieve plate; 3. a drive roll; 31. a first clamping seam; 32. a first threaded hole; 33. a drive mechanism; 331. a screw; 332. a slide bar; 333. a sleeve; 334. a drive motor; 335. a bellows; 336. a compression spring; 4. a driven roller; 41. a second clamping seam; 42. a second threaded hole; 43. a rebound assembly; 431. a torsion spring; 5. a material carrying belt; 6. and (4) bolts.

Detailed Description

A sieve separating plate is shown in figure 1 and comprises two triangular frame bodies 1 which are vertically arranged and sieve plates 2 which are arranged on one sides of the two frame bodies 1, wherein the sieve plates 2 are fixedly connected with the edges of the two frame bodies 1 at the same side.

As shown in fig. 1, a fixing shaft 11 is horizontally disposed between the two frame bodies 1, the fixing shaft 11 is located at a bottom corner departing from the screen plate 2, and two ends of the fixing shaft 11 are fixed at inner sides of the two frame bodies 1. A driving roller 3 and a driven roller 4 are horizontally arranged between the two frame bodies 1, the driving roller 3 and the driven roller 4 are positioned at the bottom of the frame bodies 1, and the driven roller 4 is sleeved on the fixed shaft 11 and rotates coaxially with the fixed shaft 11; the drive roll 3 is near the back of the screening deck 2. The driving roller 3 and the driven roller 4 are provided with a material bearing belt 5, two ends of the material bearing belt 5 are detachably connected with the driving roller 3 and the driven roller 4 respectively, and the redundant material bearing belt 5 is wound on the driven roller 4. Two sides of the driving roller 3 are also provided with a driving mechanism 33 for driving the driving roller 3 to slide back and forth along the height direction of the sieve plate 2, and the fixed shaft 11 is provided with a rebound assembly 43 for driving the driven roller 4 to rotate and return.

As shown in fig. 2, a first clamping slot 31 is formed in the outer circumferential surface of the drive roll 3 along the length direction of the drive roll 3, one end edge of the material bearing strip 5 is inserted into the first clamping slot 31, a plurality of first threaded holes 32 communicated with the inner wall of the first clamping slot 31 are formed in the outer circumferential surface of the drive roll 3 along the length direction of the drive roll 3, and the first threaded holes 32 are in threaded connection with bolts 6 contacting the material bearing strip 5. And the peripheral face of driven roller 4 has seted up a second screens seam 41 along the length direction of driven roller 4, and the other end of holding material area 5 is inserted and is established in second screens seam 41, and driven roller 4 peripheral face has seted up a plurality of and the mutual second screw hole 42 that communicates of second screens seam 41 inner wall along the length direction of driven roller 4, and second screw hole 42 female connection has the bolt 6 that pushes up and touch and hold material area 5. Through the top contact of the bolt 6 to the material bearing belt 5, the friction force between the material bearing belt 5 and the inner walls of the first clamping seam 31 and the second clamping seam 41 is increased, and further the stability of the fixation of the material bearing belt 5 with the driving roller 3 and the driven roller 4 is improved.

As shown in fig. 3 and 4, the driving mechanism 33 includes a sliding rod 332 and a screw 331 disposed at two ends of the driving roll 3, the sliding rod 332 and the screw 331 are parallel to each other and arranged along the height direction of the screen plate 2, two ends of the sliding rod 332 are fixedly connected to the frame body 1 at one side, and two ends of the screw 331 are rotatably connected to the frame body 1 at the other side. Two ends of the driving roller 3 are respectively fixedly connected with a sleeve 333, one sleeve 333 is sleeved on the sliding rod 332 and connected with the sliding rod 332 in a sliding manner, the other sleeve 333 is sleeved on the screw 331, an internal thread matched with the screw 331 in a threaded manner is formed in the sleeve 333, the upper end of the screw 331 is provided with a driving motor 334, the driving motor 334 is fixedly connected with the frame body 1, and an output shaft of the driving motor 334 is coaxially and fixedly connected with the screw 331. When the materials between the two frame bodies 1 are stacked too high, the driving motor 334 is started, the driving roller 3 slides along the length direction of the sliding rod 332 through the threaded connection of the screw rod 331 and the sleeve 333 and drives the material bearing strip 5 to roll out from the peripheral surface of the driven roller 4 under the limiting action of the sliding rod 332 on the driving roller 3, so that the material bearing strip 5 forms an inclined plane, and the materials above the material bearing strip 5 roll down to the direction of the driven roller 4 under the action of gravity. Through the control of actuating mechanism 33 to holding material belt 5, reduced artifical operation to the material, not only improved sieve 2 and separated efficiency, also saved artificial physical demands moreover.

As shown in fig. 4, the resilient assembly 43 includes two torsion springs 431 sleeved on the fixed shaft 11, the two torsion springs 431 are located at two sides of the driven roller 4, one end of the torsion spring 431 is fixedly connected to the driven roller 4, and the other end of the torsion spring 431 is fixedly connected to the fixed shaft 11. When the driving roller 3 rises, the driven roller 4 is driven to rotate on the fixed shaft 11, so that the torsion spring 431 is driven to generate elastic deformation while the material bearing belt 5 stretches out, and opposite acting force is applied to the driven roller 4, so that the material bearing belt 5 stretches flat, and the material is guided. And when the drive roll 3 return, the driven roller 4 can hold the material area 5 and roll up on the global of driven roller 4 under the effect of torsional spring 431, makes the horizontal bottom that is located the support body 1 of holding the material area 5 to the material is supported.

As shown in fig. 4 and 5, in order to reduce the influence of the material on the driving mechanism 33, two corrugated pipes 335 are respectively sleeved on the sliding rod 332 and the screw 331, the two corrugated pipes 335 are respectively located at two sides of the sleeve 333, and a compression spring 336 is further inserted into each corrugated pipe 335, and two ends of the compression spring 336 are fixedly connected with two ends of the corrugated pipe 335, so that the corrugated pipe 335 is constantly abutted against two ends of the sleeve 333 under the action of the compression spring 336. When the sleeve 333 moves on the sliding rod 332 or the screw 331, the bellows 335 will elastically contract and the sliding rod 332 and the screw 331 are sleeved therein all the time, thereby reducing the influence of sand in the external environment on the sliding of the two sleeves 333 and further protecting the sliding rod 332 and the screw 331.

The working process is as follows: when the staff uses the screening sand board to separate the grit, the fine sand can be gradually piled up on the material bearing belt 5 inside the screening sand board. If the fine sand on the material bearing belt 5 is accumulated more and influences the following sand screening, the worker can work by controlling the driving motor 334, and then the control screw 331 rotates, the sleeve 333 with the internal thread is arranged to slide upwards along the length direction of the screw 331, and then the driving roller 3 is driven to slide upwards, so that the included angle between the material bearing belt 5 and the ground is increased, and the material above the material bearing belt 5 rolls down in the direction of the driven roller 4 under the action of gravity. After the material is poured, the screw 331 is controlled by the driving motor 334 to rotate reversely, so that the driving roller 3 is reset. The sand screening plate can continue to screen sand.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a screening sand board, includes support body (1) of two vertical settings to and set up sieve (2) in support body (1) one side, characterized by: a material bearing assembly for transferring materials on the back side of the sieve plate (2) is arranged in the frame body (1);

hold material subassembly and include that the level sets up drive roll (3) and driven voller (4) that lay in support body (1) bottom and along sieve (2) width direction, the both ends and two support bodies (1) of driven voller (4) rotate to be connected, be provided with on drive roll (3) and driven voller (4) and be used for accepting material hold material area (5), the one end in flourishing material area is connected on drive roll (3), the other end in flourishing material area is connected and is rolled up on driven voller (4) with driven voller (4), the both ends of drive roll (3) are provided with drive roll (3) along sieve (2) direction of height reciprocating motion's actuating mechanism (33), are provided with on driven voller (4) and drive resilience subassembly (43) that become the material and roll up the return.

2. A sand screen as claimed in claim 1, wherein: the driving mechanism (33) comprises a sliding rod (332) and a screw rod (331) which are respectively arranged at two ends of the driving roller (3), the sliding rod (332) and the screw rod (331) are parallel to each other, two ends of the sliding rod (332) are fixedly connected with the frame body (1), two ends of the screw rod (331) are rotatably connected with the frame body (1), one end of the screw rod (331) is provided with a driving motor (334) for driving the screw rod (331) to rotate, two ends of the driving roller (3) are respectively fixedly connected with a sleeve (333), the two sliding sleeves (333) are respectively sleeved on the sliding rod (332) and the screw rod (331), and an outer thread matched with the screw rod (331) is arranged on the inner circumferential surface of the sliding sleeve (333) sleeved on the.

3. A sand screen as claimed in claim 1, wherein: wear to be equipped with a fixed axle (11) in driven voller (4), the both ends and both sides support body (1) fixed connection of fixed axle (11), two torsional springs (431) on fixed axle (11) are established including the cover to resilience subassembly (43), and two torsional springs (431) are located the both ends of driven voller (4) respectively to the one end rigid coupling of torsional spring (431) is on fixed axle (11), and the other end rigid coupling of torsional spring (431) is on driven voller (4).

4. A sand screen as claimed in claim 1, wherein: the two ends of the material bearing belt (5) are detachably connected with the driven roller (4) and the driving roller (3).

5. A sand screen as claimed in claim 4, wherein: the outer peripheral surface of the driving roller (3) is provided with a first clamping seam (31) for accommodating the end part of the material bearing strip (5), and the outer peripheral surface of the driven roller (4) is in threaded connection with a plurality of fixing screws for jacking the material bearing strip (5) in the first clamping seam (31); the outer peripheral face of driven roller (4) is seted up and is held second screens seam (41) that hold material area (5) tip, driven roller (4) outer peripheral face threaded connection has a plurality of top to touch the set screw of holding material area (5) in second screens seam (41).

6. A sand screen as claimed in claim 2, wherein: the sliding rod (332) and the screw rod (331) are respectively sleeved with two corrugated pipes (335), and the two corrugated pipes (335) are respectively positioned on two sides of the sleeve (333).

7. A sand screen as claimed in claim 6, wherein: a compression spring (336) is arranged in the corrugated pipe (335), and two ends of the compression spring (336) are fixedly connected to two ends of the corrugated pipe (335) respectively.