CN219850640U

CN219850640U - Sand and stone screening machine

Info

Publication number: CN219850640U
Application number: CN202320383711.6U
Authority: CN
Inventors: 温洪刚
Original assignee: Hangzhou Qianshen Commercial Concrete Co ltd
Current assignee: Hangzhou Qianshen Commercial Concrete Co ltd
Priority date: 2023-02-25
Filing date: 2023-02-25
Publication date: 2023-10-20
Anticipated expiration: 2033-02-25

Abstract

The utility model relates to the field of screening equipment, in particular to a sand screening machine, which comprises a mounting bracket and a screen mesh arranged on the mounting bracket, wherein a vibrating piece and a cleaning device are further arranged on the mounting bracket, the vibrating piece is used for driving the screen mesh to vibrate, the cleaning device comprises a cleaning piece and a driving mechanism, the cleaning piece is connected to the mounting bracket in a sliding manner along the direction parallel to the screen mesh, the cleaning piece is moved to clean gravel adhered to the screen mesh, the driving mechanism comprises a moving assembly and a rotating assembly, the moving assembly is used for driving the cleaning piece to move, and the rotating assembly is used for driving the cleaning piece to rotate. The utility model has the effects of reducing the occurrence of the condition of blocking of the mesh holes of the screen cloth in the screening process of the screening machine and improving the running stability of the screening machine.

Description

Sand and stone screening machine

Technical Field

The utility model relates to the technical field of screening equipment, in particular to a sand screening machine.

Background

The sand and stone is a common building material, the sand and stone with different particle sizes have different functions in application, and the sand and stone with the particle size smaller than 5mm can be used as yellow sand, and the sand and stone with the particle size larger than 5mm and smaller than 16mm can be used as small stones. The sand and stone with different particle sizes are doped in the concrete, so that the strength of the concrete can be effectively improved.

The common sand and stone screening method mainly comprises two kinds, for small-sized engineering, a screen is usually supported manually, and then constructors throw sand and stone towards the screen by using iron balls to finish sand and stone screening. For medium-sized or large-sized engineering, sand and stones are screened by using a screening machine generally, wherein a common screening machine mainly comprises a mounting bracket, a screen and a vibrating mechanism, the screen is mounted on the mounting bracket, the vibrating mechanism is connected with the screen, and the vibrating mechanism is used for driving the screen to vibrate, so that sand and stones are screened.

In the construction process of building engineering, sand and stones are generally stored in an open air environment. The sand and stone contain water with different degrees, so that some fine grits are easy to adhere to the screen during the sand and stone screening process, and the mesh of the screen is reduced or even blocked along with the increase of the adhesion of the grits, so that the stability of the screening machine in the related art is lower during the running process.

Disclosure of Invention

In order to reduce the blocking of meshes of a screen and improve the stability of the screening machine, the utility model provides a sand screening machine.

The sand screening machine provided by the utility model adopts the following technical scheme:

the utility model provides a grit screening machine, includes the installing support and installs the screen cloth on the installing support, still be provided with vibrating piece and cleaning device on the installing support, the vibrating piece is used for driving the screen cloth vibration, cleaning device includes cleaning piece and actuating mechanism, the cleaning piece is along the direction sliding connection of parallel and screen cloth on the installing support, removes the cleaning piece can clean the grit of adhesion on the screen cloth, actuating mechanism includes moving component and rotating assembly, moving component is used for driving the cleaning piece and removes, rotating assembly is used for driving the cleaning piece and rotates.

Through adopting above-mentioned technical scheme, drive assembly drives the clearance piece and removes, and after the relative screen cloth of clearance piece took place to remove, the clearance piece cleans the gravel of adhesion on the screen cloth. In the moving process of the cleaning piece, the cleaning piece can clean different positions of the screen. The driving mechanism drives the cleaning piece to rotate, so that the moving speed of the cleaning piece relative to the screen is improved, and the cleaning effect of the cleaning piece on the screen is improved.

Optionally, the cleaning member is a brush roller, and the rotating assembly can drive the brush roller to rotate around the axis of the brush roller.

Through adopting above-mentioned technical scheme, when the brush roller removed, the brush hair of brush roller rubbed with the screen cloth to clean the gravel of adhesion on the screen cloth. When the brush roller rotates around the axis of the brush roller, the speed of the brush hair on the brush roller and the relative screen mesh moving is improved, so that the cleaning effect of the brush roller is effectively improved.

Optionally, the removal subassembly includes control lever, drive screw, the control lever is along the slip direction sliding connection of brush roller on the installing support, drive screw sets up along the slip direction of brush roller, drive screw one end passes the control lever and rotates to be connected on the installing support, the screw hole has been seted up to the position that corresponds drive screw on the control lever, drive screw threaded connection is in threaded hole, the brush roller is connected on the control lever.

Through adopting above-mentioned technical scheme, rotate the drive screw, drive screw drives the control lever and removes under the effect of screw thread, and then drive the brush roller and remove.

Optionally, the rotating assembly includes drive rack, driven gear and connecting axle, connecting axle one end and brush roller tip coaxial coupling, the other end passes the control lever and extends to one side that the brush roller was kept away from to the control lever, the slide hole has been seted up to the position that corresponds the connecting axle on the control lever, the connecting axle can be in connecting the slide hole internal rotation, driven gear coaxial coupling is kept away from the one end of brush roller at the connecting axle, the drive rack sets up on the installing support along the length direction of brush roller to drive rack and driven gear engagement.

Through adopting above-mentioned technical scheme, drive rack and driven rack meshing, when the control lever drove the connecting axle and remove, can make driven gear roll on the rack under the cooperation of tooth's socket and gear to drive the brush roller and rotate.

Optionally, the rotating assemblies are arranged in two groups, and the two rotating assemblies are respectively arranged at two sides of the brush roller along the axis of the brush roller.

Through adopting above-mentioned technical scheme, two driven gears drive the brush roller simultaneously and rotate, can improve the stability of brush roller rotation in-process, make the better performance clearance effect of brush roller.

Optionally, still be provided with guide assembly on the installing support, guide assembly includes two guide plates, two guide plates set up along the direction interval of perpendicular to screen cloth, the connecting axle can be in the slide hole along the direction removal of perpendicular to screen cloth, when the connecting axle removes in the clearance between two guide plates, guide plate can drive the brush roller and remove to the direction of keeping away from the screen cloth.

Through adopting above-mentioned technical scheme, when need not clear up the screen cloth, guide board guide brush roller keeps away from the screen cloth to reduce the brush roller and the influence that the vibration of screen cloth contact caused the screen cloth, with make the screening machine better screen cloth to sand and stone.

Optionally, the guide plate includes an inclined portion, one end of the inclined portion is connected with the mounting bracket, and the other end is inclined in a direction approaching the screen along a sliding direction of the brush roller.

Through adopting above-mentioned technical scheme, remove the control lever when connecting axle side and tilting portion butt, connecting axle laminating tilting portion removes, and then guide brush roller to the direction removal of keeping away from the screen cloth.

Optionally, the guide plate further includes a stabilizing portion, the stabilizing portion is parallel to the screen, and one end of the stabilizing portion is connected with one end of the inclined portion, which is close to the screen.

Through adopting above-mentioned technical scheme, when the connecting axle is arranged in the clearance between two stabilizing parts, stabilizing part stops the brush roller and removes along the direction of perpendicular to screen cloth, not only can make driven gear better with drive rack meshing, stabilizing part supports the connecting axle moreover, can make brush roller clearance in-process operation more stable.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is an enlarged view of portion a of fig. 1 in accordance with an embodiment of the present utility model.

Fig. 3 is a schematic view of a guide assembly according to an embodiment of the present utility model.

Reference numerals: 1. a mounting bracket; 2. a screen; 3. a vibrating member; 4. a cleaning device; 41. cleaning the piece; 42. a driving mechanism; 5. a moving assembly; 51. a control lever; 52. driving a screw; 53. a driving member; 54. a mounting plate; 55. a sliding hole; 6. a rotating assembly; 61. a drive rack; 62. a driven gear; 63. a connecting shaft; 7. a guide assembly; 71. a guide plate; 711. a horizontal portion; 712. an inclined portion; 713. a stabilizing portion.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a sand screening machine.

Referring to fig. 1, the sand screening machine comprises a mounting bracket 1, a screen 2, a vibrating piece 3 and a cleaning device 4, wherein the screen 2, the vibrating piece 3 and the cleaning device 4 are mounted on the mounting bracket 1, the screen 2 is horizontally arranged, the vibrating piece 3 is connected with the screen 2, and the vibrating piece 3 is used for driving the screen 2 to vibrate; the vibrating member 3 in this embodiment is a vibrating motor. The cleaning device 4 is in contact with the screen 2 and is used for cleaning the screen 2 when more gravel adheres to the screen 2; thereby reducing the occurrence of the gravel adhering to the screen 2, which results in the mesh of the screen 2 being narrowed. A compression spring is arranged between the screen 2 and the mounting bracket 1, one end of the compression spring is welded with the frame of the screen 2, and the other end is welded with the mounting bracket 1. When vibrating motor drives screen cloth 2 vibration, compression spring can play the cushioning effect to can reduce the installation support 1 and follow the condition that screen cloth 2 together vibrates the noise.

Referring to fig. 1 and 2, the cleaning device 4 includes a cleaning member 41 and a driving mechanism 42, the cleaning member 41 being used to clean the screen 2. The cleaning member 41 in this embodiment is a brush roller which is located above the screen 2 and whose bristles can be brought into contact with the screen 2. The brush roller is slidingly connected to the mounting bracket 1 along a direction perpendicular to the axis of the brush roller and parallel to the screen 2. The driving mechanism 42 is installed on the mounting bracket 1, and the driving mechanism 42 is used for driving the brush roller to move, and when the brush roller moves, the bristles of the brush roller clean the sand gravel adhered on the screen 2.

Referring to fig. 1 and 2, the driving mechanism 42 includes a moving assembly 5, the moving assembly 5 includes a control lever 51, a driving screw 52, and a driving member 53, the control lever 51 is disposed perpendicular to the screen 2, and one end of the control lever 51 is slidably coupled to the mounting bracket 1 in a sliding direction of the brush roller. Two mounting plates 54 are welded on the mounting bracket 1 perpendicular to the screen 2, and the two mounting plates 54 are arranged at intervals in parallel along the sliding direction of the brush roller. The driving member 53 is welded to one side of one of the mounting plates 54, which is far from the other mounting plate 54, the driving screw 52 is disposed along the moving direction of the brush roller, one end of the driving screw 52 is rotatably connected to the mounting plate 54 far from the driving member 53, and the other end sequentially passes through the control rod 51 and the mounting plate 54 near to the driving member 53 and is connected to the driving member 53. A threaded hole is provided in the control rod 51 at a position corresponding to the drive screw 52, and the drive screw 52 is screwed into the threaded hole. The driving piece 53 is used for driving the driving screw 52 to rotate, in this embodiment, the driving piece 53 is a servo motor, a housing of the servo motor is welded on the mounting plate 54, and an output shaft of the servo motor is welded coaxially with the driving screw 52. The brush roller end is connected to a control lever 51. The output shaft of the servo motor rotates to drive the driving screw 52 to rotate, so as to drive the control rod 51 to move; the control rod 51 can drive the brush roller to rotate, so that the brush roller can automatically clean the screen 2.

Referring to fig. 1 and 2, the drive mechanism 42 further includes a rotating assembly 6, the rotating assembly 6 being located between the two mounting plates 54, the rotating assembly 6 including a drive rack 61, a driven gear 62, and a connecting shaft 63. The driven gear 62 is coaxially disposed at a side of the control lever 51 away from the brush roller, and the connecting shaft 63 is disposed between the driven gear 62 and the brush roller. One end of the connecting shaft 63 is coaxially welded to the brush roller, and the other end is coaxially welded to the driven gear 62. The control lever 51 is provided with a slide hole 55 at a position corresponding to the connection shaft 63, the connection shaft 63 is inserted into the slide hole 55, and the connection shaft 63 can rotate around its own axis in the slide hole 55. The drive rack 61 is welded to the two mounting plates 54 at both ends thereof, respectively, the drive rack 61 is located below the driven gear 62, and the drive rack 61 is meshed with the driven gear 62. When the driving screw 52 drives the control rod 51 to move, the connecting shaft 63 can be driven to move. When the connecting shaft 63 moves, the driven gear 62 can be driven to roll on the driving rack 61, thereby driving the brush roller to rotate. The cleaning effect of the brush roller on the screen 2 is improved.

Referring to fig. 1, 2 and 3, in the process of screening sand and stone by the screening machine, the vibrating piece 3 drives the screen 2 to vibrate, and in order to reduce the influence of the contact of the brush roller and the screen 2 on the vibration of the brush roller, a guide assembly 7 is arranged between the control rod 51 and the brush roller. The guide assembly 7 is located on the side of the drive 53 adjacent to the drive screw 52, the guide assembly 7 comprising two guide plates 71, the two guide plates 71 being arranged at a distance from each other in a direction perpendicular to the screen 2. The connecting shaft 63 is located in the gap between the two guide plates 71. The guide plate 71 includes an inclined portion 712, a horizontal portion 711, and a stabilizing portion 713, and both the inclined portion 712 and the horizontal portion 711 have a rectangular plate-like structure. The horizontal portion 711 is located between the mounting plate 54 adjacent to the driving member 53 and the inclined portion 712. The horizontal portion 711 is welded at one end to the mounting plate 54 adjacent to the driving member 53 and at the other end to one end of the inclined portion 712. The inclined portion 712 is inclined from an end near the horizontal portion 711 to an end far from the horizontal portion 711 in a direction approaching the screen 2 along the sliding direction of the brush roller. The stabilizing portion 713 is horizontally disposed, and one end of the stabilizing portion 713 is welded to one end of the inclined portion 712 remote from the horizontal portion 711, and the other end is welded to the mounting plate 54 remote from the driving member 53. The connecting shaft 63 is located in the gap between the two guide plates 71. The slide hole 55 is a rectangular groove, and the connection shaft 63 is slidable in the vertical direction within the slide hole 55. When the brush roller is not in use, the driving screw 52 is rotated to move the brush roller in a direction approaching the driving member 53. When the connecting shaft 63 is located in the gap corresponding to the lock of the inclined portions 712 of the two guide plates 71, the inclined portions 712 can guide the connecting shaft 63 to rise so that the brush roller no longer contacts the screen 2, thereby reducing the influence of the brush roller on the vibration of the screen 2.

In order to improve stability in the moving process of the brush roller, the guide assembly 7 and the rotation assembly 6 may be provided in two groups, and the two groups of the guide assembly 7 and the rotation assembly 6 are provided at both sides of the brush roller in the axial direction of the brush roller. The two groups of guide assemblies 7 guide the brush roller to move at the same time, so that the stability of the brush roller in the moving process is improved. The two groups of rotating assemblies 6 drive the brush roller to rotate simultaneously, so that the stability of the brush roller in the rotating process is improved.

The implementation principle of the sand screening machine provided by the embodiment of the utility model is as follows: during normal screening of sand and stones by the screening machine, both connecting shafts 63 are located at positions corresponding to the horizontal portions 711 of the two guide plates 71, and at this time, the brush roller is in no contact with the screen 2. When sand particles adhered on the screen 2 are more, a worker can control the servo motor to start, the servo motor drives the driving screw 52 to rotate, and under the action of the driving screw 52, the control rod 51 drives the brush roller to move. When the connecting shaft 63 moves to a position corresponding to the stabilizing portion 713 of the guide plate 71, the driven gear 62 is engaged with the driving rack 61, and the bristles of the brush roller are brought into contact with the screen 2. In the process that the connecting shaft 63 moves along the length direction of the stabilizing portion 713, the driving rack 61 can drive the driven gear 62 to rotate, and then drive the brush roller to rotate, so that the screen 2 is cleaned.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. Grit screening machine, including installing support (1) and install screen cloth (2) on installing support (1), its characterized in that: still be provided with vibrating piece (3) and cleaning device (4) on installing support (1), vibrating piece (3) are used for driving screen cloth (2) vibration, cleaning device (4) are including cleaning piece (41) and actuating mechanism (42), cleaning piece (41) are along being on installing support (1) of direction sliding connection parallel to screen cloth (2), remove cleaning piece (41) can clean the grit that adheres to on screen cloth (2), actuating mechanism (42) are including moving subassembly (5) and rotating assembly (6), moving subassembly (5) are used for driving cleaning piece (41) and remove, rotating assembly (6) are used for driving cleaning piece (41) rotation;

the cleaning piece (41) is a brush roller, and the rotating assembly (6) can drive the brush roller to rotate around the axis of the brush roller;

the movable assembly (5) comprises a control rod (51) and a driving screw (52), the control rod (51) is connected to the mounting bracket (1) in a sliding mode along the sliding direction of the brush roller, the driving screw (52) is arranged along the sliding direction of the brush roller, one end of the driving screw (52) penetrates through the control rod (51) and is connected to the mounting bracket (1) in a rotating mode, a threaded hole is formed in the position, corresponding to the driving screw (52), of the control rod (51), the driving screw (52) is connected to the threaded hole in a threaded mode, and the brush roller is connected to the control rod (51);

the rotating assembly (6) comprises a driving rack (61), a driven gear (62) and a connecting shaft (63), one end of the connecting shaft (63) is coaxially connected with the end part of the brush roller, the other end of the connecting shaft penetrates through the control rod (51) to extend to one side, far away from the brush roller, of the control rod (51), a sliding hole (55) is formed in the position, corresponding to the connecting shaft (63), of the control rod (51), the connecting shaft (63) can rotate in the connecting sliding hole (55), the driven gear (62) is coaxially connected to one end, far away from the brush roller, of the connecting shaft (63), and the driving rack (61) is arranged on the mounting bracket (1) along the length direction of the brush roller and is meshed with the driven gear (62).

2. The sand screen as in claim 1, wherein: the two rotating assemblies (6) are arranged in two groups, and the two rotating assemblies (6) are respectively arranged on two sides of the brush roller along the axis of the brush roller.

3. The sand screen as in claim 2, wherein: still be provided with guide assembly (7) on installing support (1), guide assembly (7) are including two guide board (71), two guide board (71) set up along the direction interval of perpendicular to screen cloth (2), connecting axle (63) can be in slide hole (55) along the direction removal of perpendicular to screen cloth (2), connecting axle (63) when removing in the clearance between two guide board (71), guide board (71) can drive the brush roller to the direction removal of keeping away from screen cloth (2).

4. A sand screen as claimed in claim 3, wherein: the guide plate (71) comprises an inclined part (712), one end of the inclined part (712) is connected with the mounting bracket (1), and the other end of the inclined part is inclined towards a direction approaching the screen (2) along the sliding direction of the brush roller.

5. The sand screen as claimed in claim 4, wherein: the guide plate (71) further comprises a stabilizing part (713), the stabilizing part (713) is parallel to the screen (2), and one end of the stabilizing part (713) is connected with one end of the inclined part (712) close to the screen (2).