CN209918281U

CN209918281U - Anti-blocking screening machine

Info

Publication number: CN209918281U
Application number: CN201920366885.5U
Authority: CN
Inventors: 管永强; 刘传磊
Original assignee: Shanghai Jiagen Subgrade Material Co Ltd
Current assignee: Shanghai Jiagen Subgrade Material Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-01-10
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses an anti-blocking screening machine, which relates to the field of building material screening equipment and comprises a machine body and a driving device, wherein a screen plate is arranged inside the machine body, an extrusion plate is fixed inside the machine body and is arranged above the screen plate, a slide bar is arranged on one side of the extrusion plate close to the screen plate, and one end of the slide bar, which is far away from the extrusion plate, is movably inserted into the screen plate; the inside vibrator that is used for knocking the sieve that is equipped with of organism, vibrator is including knocking the driving piece that strikes the piece and because the drive strikes the piece of sieve. The utility model provides a security is strong, sieves effectually, and the sieve blocks up a few of the condition and prevents stifled screening plant.

Description

Anti-blocking screening machine

Technical Field

The utility model relates to a building material screening equipment field, specific theory, it relates to an prevent stifled screening machine.

Background

The sieving machine is a vibrating sieving mechanical device which utilizes the relative movement of bulk materials and a sieve surface to lead partial particles to penetrate through sieve pores and divide materials such as sand, gravel, broken stone and the like into different grades according to the particle size.

The patent of the invention with the prior patent publication number of CN108126884A discloses a vibrating screen classifier, which comprises a body, wherein a first screen plate and a second screen plate are horizontally arranged in the body at intervals from top to bottom, and a vibrating motor is arranged on the body.

In practical use, the broken materials are poured into the machine body from the feeding hole, and the broken materials are separated from broken materials of different sizes through the vibration filtering of the first sieve plate and the second sieve plate, so that the screening of the broken materials is realized. However, when the sieving machine is used for sieving materials, the problem that the sieving holes on the sieving plate are blocked by the sieved materials is solved.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing a prevent stifled screening machine utilizes stripper plate cooperation vibrator, promotes the shaking ability of sieve, shakes the material that falls to block up in the sieve mesh, reduces the sieve and is blockked up the possibility.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an anti-blocking screening machine comprises a machine body and a driving device, wherein a screen plate is arranged in the machine body, an extrusion plate is fixed in the machine body and arranged above the screen plate, a sliding rod is arranged on one side, close to the screen plate, of the extrusion plate, and one end, far away from the extrusion plate, of the sliding rod movably penetrates through the screen plate; the inside vibrator that is used for striking the sieve that is equipped with of organism, vibrator strikes the driving piece of piece and because the drive strikes the piece including striking the sieve.

By adopting the technical scheme, in actual use, materials to be screened are put into the screening machine, and the materials vibrate on the screening plate with high frequency along with the screening plate to be screened; meanwhile, the knocking piece in the vibrating device knocks the sieve plate to enable the sieve plate to slide along the length direction of the sliding rod, so that the vibration amplitude of the sieve plate is increased, and sand stones smaller than the aperture of the sieve plate can easily fall down from the holes of the sieve plate quickly, thereby improving the sieving capacity of the sieve plate and the sieving efficiency; the sieve plate vibrates greatly, so that sand blocking the sieve plate can vibrate out, the sieve plate hole is kept smooth, and the risk of blocking the sieve plate is reduced; and after the sieve plate slides along the length direction of the sliding rod, the materials on the sieve plate impact the extrusion plate, so that the upper-layer materials extrude the lower-layer materials, the falling of the materials in the sieve holes is accelerated, and the possibility of blockage of the sieve plate is reduced. Through this kind of mode, not only improve the screening efficiency of screening machine greatly, effectively reduce the risk that the sieve blockked up simultaneously.

The utility model discloses further set up to: the slide bar is sleeved with a first elastic piece, and two ends of the elastic piece are respectively abutted to the fixed block and the sieve plate.

Through adopting above-mentioned technical scheme, when making the sieve strikeed, elastic potential energy can be stored to first elastic component, makes the sieve strikeed the back, makes it slide faster along first bullet piece diastole direction, improves vibrations impact force, improves the screening effect greatly, reduces the risk that the sieve blockked up.

The utility model discloses further set up to: one side of the extrusion plate, which is close to the sieve plate, is provided with a slide rail along the length direction of the extrusion plate, a fixed block is arranged in the slide rail in a sliding manner, and the slide bar is arranged on the fixed block; and a second elastic part for driving the fixed block to reset is connected between the fixed part and the inner wall of the slide rail.

By adopting the technical scheme, after the screened materials are put into the screening machine, the impact force of the materials impacting the screening plate drives the screening plate to slide along the slide rail direction, and when the component force of the impact force along the length direction of the slide rail is smaller than the elastic force of the second elastic part, the second elastic part pulls the screening plate to restore to the original position; make the sieve realize reciprocating motion along slide rail length direction through this kind of mode, improve the vibration range of sieve, be favorable to blockking up the grit vibration in sieve hole and come out, dredge the sieve mesh, reduce the risk that the sieve blockked up.

The utility model discloses further set up to: the fixed block is connected with the rollers in a rotating mode on two opposite sides, and the fixed block is matched with the sliding rail in a sliding mode through the rollers.

Through adopting above-mentioned technical scheme, pass through the gyro wheel with the fixed block and form the cooperation of sliding with the slide rail, effectively reduce the resistance that the fixed block slided on the slide rail, promote the distance of sliding of fixed block on the slide rail, and then promote the sieve along slide rail length direction sliding amplitude, improve the shock energy of sieve, reduce the risk that the sieve blockked up.

The utility model discloses further set up to: a pushing block used for being matched with the knocking piece to work is arranged on one side, close to the knocking piece, of the sieve plate; when the pushing device works, the knocking piece knocks the pushing block.

Through adopting above-mentioned technical scheme, the during operation strikes the ejector pad through knocking the piece, drives the sieve and follows slide rail direction high-speed slip, further improves sieve vibrations ability, is favorable to blockking up the grit vibration of sieve pore and comes out, keeps the sieve mesh unblocked, reduces the sieve by the possibility of stifled match.

The utility model discloses further set up to: the knocking piece is a cam, the driving piece is a driving motor, the driving motor is fixed on the outer wall of the machine body, and the cam is fixedly arranged on an output shaft of the driving motor.

Through adopting above-mentioned technical scheme, drive the cam through the motor and rotate, accomplish the action of knocking of cam to the sieve, simple structure easily realizes, and the cam design can guarantee to carry out intermittent type nature to the sieve and strike the effect, promotes and strikes the effect, reduces the risk that the sieve is blockked up.

The utility model discloses further set up to: the vibrating devices are arranged in two groups, and the vibrating devices are arranged on one side of the sieve plate departing from the corresponding extrusion plate at intervals.

Through adopting above-mentioned technical scheme, two sets of vibrator's setting can be guaranteed when knocking the sieve, makes sieve both sides atress simultaneously, and the sieve atress is more even, makes the material change and drops from the sieve mesh, improves and strikes the effect, reduces the risk that the sieve blockked up.

The utility model discloses further set up to: two sieve plates are arranged on the machine body at intervals; the machine body is internally fixed with a material conveying plate which is positioned between the upper sieve plate and the lower sieve plate.

By adopting the technical scheme, the sieve plates which are arranged in the machine body at intervals up and down and the material conveying plates which are arranged between the two sieve plates are utilized, so that the material is sieved twice, and the sieving effect is improved.

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

1. the screen plate is knocked by using a knocking piece in the vibrating device and matched with the extrusion plate, so that the vibration amplitude of the screen plate is improved, gravels blocking the screen plate holes are vibrated out, the screen plate holes are kept smooth, and meanwhile, materials in the screen holes are more prone to falling off, so that the possibility of blocking the screen plate is effectively reduced;

2. the arrangement of the extrusion plate and the sliding arrangement of the fixed block on the extrusion plate are utilized, so that the vibration amplitude of the sieve plate is further improved, and the sieving capacity of the sieve plate is improved;

3. two sieve plates are arranged in the machine body up and down, so that materials are sieved for multiple times, and the sieving effect is greatly improved.

Drawings

FIG. 1 is a schematic view of an embodiment of the present invention taken along a shaft;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic view of the structure of the squeeze plate and the sieve plate according to an embodiment of the present invention;

fig. 4 is a schematic view of a fixing block according to an embodiment of the present invention.

Reference numerals: 1. a body; 101. mounting a plate; 102. a support pillar; 103. a vibration spring; 104. a blocking cover; 105. a feed inlet; 106. a vibration motor; 2. a sieve plate; 21. a first screen deck; 211. a first discharge port; 22. a second screen deck; 221. a second discharge port; 3. a material conveying plate; 31. a material conveying port; 4. a material collecting bin; 41. a third discharge port; 5. a pressing plate; 51. a slide rail; 6. a fixed block; 61. a roller; 62. a slide bar; 63. a compression spring; 64. an extension spring; 7. a cam; 71. a first cam; 72. a second cam; 8. a drive motor; 81. a first drive motor; 82. a second drive motor; 9. and (7) pushing the block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, the anti-blocking screening machine comprises a machine body 1, wherein the machine body 1 can be of a rectangular box structure, mounting plates 101 are horizontally fixed on two sides of the machine body 1 in the width direction, vibration springs 103 are fixed on corner positions of one side, close to the ground, of the two mounting plates 101 in the vertical direction, and one ends, far away from the mounting plates 101, of the vibration springs 103 are fixedly connected with supporting columns 102. A vibration motor 106 for driving the sieving machine to work is fixed to one side of the machine body 1 in the longitudinal direction by bolts.

With reference to fig. 2, two extrusion plates 5 are fixed on the side wall inside the machine body 1, and the two extrusion plates 5 are fixed at intervals up and down inside the machine body 1; the two extrusion plates 5 are both arranged in the machine body 1 in an inclined manner, and the inclined directions are opposite. The shape of two stripper plates 5 all can be the rectangle, and two slide rails 51 that are the symmetry and set up are all seted up to one side that two stripper plates 5 are close to ground, and slide rail 51 sets up along 5 length direction on stripper plate, and two slide rails 51 all set up at 5 border positions on stripper plate.

With reference to fig. 3-4, a fixed block 6 is embedded in the slide rail 51, the fixed block 6 is rotatably connected to two sides of the slide rail 51 through a shaft rod, and the roller 61 is embedded in the slide rail 51, so that the fixed block 6 and the slide rail 51 form a sliding fit. Two fixed blocks 6 are arranged in each slide rail 51 at intervals along the length direction of the slide rail, and an extension spring 64 is fixed on one side of the fixed block 6 which is higher in the vertical direction and deviates from the adjacent slide block in the two fixed blocks 6. The extension spring 64 extends from the fixed block 6 to the extrusion plate 5 along the length direction of the slide rail 51 and is fixedly connected with the extrusion plate 5, and the extension spring 64 is a second elastic member.

A sliding rod 62 is fixed on one side of the fixed block 6, which is far away from the extrusion plate 5, and the sliding rod 62 is vertically arranged on the fixed block 6. The one end that the fixed block 6 was kept away from to slide bar 62 is equipped with sieve 2, and the one end that the fixed block 6 was kept away from to slide bar 62 wears to establish sieve 2, makes sieve 2 and slide bar 62 form the cooperation of sliding. Meanwhile, threads are arranged at one end, far away from the fixed block 6, of the sliding rod 62, and the sieve plate 2 is fixed on the sliding rod 62 through matching nuts. The sliding rod 62 is further sleeved with a compression spring 63, and two ends of the compression spring 63 respectively abut against the surface of the sieve plate 2 and one side, close to the sieve plate 2, of the fixed block 6.

Referring to fig. 2, a blocking cover 104 is integrally formed on the upper side of the machine body 1, a feeding hole 105 is fixed on the upper side of the blocking cover 104, and the feeding hole 105 is arranged on the upper side of the high end of the first sieve plate 21 to ensure that the fed materials can slide from the high end of the first sieve plate 21 to the low end. The screening deck 2 comprises a first screening deck 21 and a second screening deck 22. The first screening deck 21 is disposed above the second screening deck 22. Along the inclined direction of the first sieve plate 21, a first discharge hole 211 is opened at the lower end of the first sieve plate 21. First sieve 21 below is provided with defeated flitch 3, and defeated flitch 3 sets up along the incline direction of first sieve 21, and defeated flitch 3 and first sieve 21 parallel arrangement, and defeated flitch 3 passes through the fixed setting of lateral wall on 1 inner wall of organism. A material conveying port 31 is formed at the lower end of the material conveying plate 3, and the material conveying port 31 is arranged above the higher end of the second sieve plate 22. The second sieve plate 22 is fixedly arranged under the first sieve plate 21, the inclination direction of the second sieve plate 22 is opposite to the inclination direction of the first sieve plate 21, namely, the high end of the second sieve plate 22 is arranged at the lower end of the first sieve plate 21, and a second discharge hole 221 is formed in the low end of the second sieve plate 22 along the inclination direction of the second sieve plate 22. The collecting bin 4 is fixed on the lower side of the machine body 1, the collecting bin 4 is arranged on the lower side of the second sieve plate 22, and a third discharging hole 41 is formed in the lower side of the collecting bin 4.

During operation, materials to be screened are firstly screened on the first screen plate 21, large materials slide out from the first discharge port 211 along the first screen plate 21, materials which are leaked from the first screen plate 21 and fall on the material conveying plate 3, materials slide to the material conveying port 31 along the material conveying plate 3 and slide to the second screen plate 22 through the material conveying port 31, and secondary screening is carried out.

The vibrating devices are fixed on two sides of the machine body 1 in the width direction and are respectively arranged on the side walls of the machine body 1 on two sides of the first sieve plate 21 and the second sieve plate 22 in the width direction. The vibrating device comprises a driving motor 8 fixed on the outer side wall of the machine body 1 and a cam 7 fixedly arranged on an output shaft of the driving motor 8, and the cam 7 is arranged below the sieve plate 2. In practical use, during operation, the driving motor 8 rotates the driving cam 7 to intermittently knock the sieve plate 2, so that the vibration amplitude of the sieve plate 2 is increased, the sand blocking the holes of the sieve plate 2 is favorably vibrated out, the holes of the sieve plate 2 are kept smooth, and the possibility of blocking the sieve plate 2 is reduced.

With reference to fig. 2-3, the driving motor 8 is disposed on the side walls of the machine body 1 on both sides of the first sieve plate 21 and the second sieve plate 22 in the width direction. The driving motor 8 comprises two symmetrical driving motors 81 fixed on two side walls of the width direction of the machine body 1, an output shaft of the driving motor 81 penetrates through the side wall of the machine body 1 and is arranged on the lower side of the first sieve plate 21, and the output shaft and the side wall of the machine body 1 are rotatably connected through a bearing. A first cam 71 is fixed at one end of an output shaft of the first driving motor 81, which is far away from the motor, and after the first cam 71 rotates, the convex part will intermittently beat the sieve plate 2.

The vibrating device further comprises two second driving motors 82 symmetrically fixed on two side walls of the width direction of the machine body 1, an output shaft of each second driving motor 82 penetrates through the side wall of the machine body 1 and is arranged on the lower side of the corresponding second sieve plate 22, and the output shaft is rotatably connected with the side wall of the machine body 1 through a bearing. A second cam 72 is fixed at one end of the output shaft of the second motor, which is far away from the motor, and after the second cam 72 rotates, the convex part will intermittently beat the sieve plate 2. The during operation rotates through driving motor 8 and makes 7 intermittent type of cams strike sieve 2, increases sieve 2's amplitude of vibration, makes the material change and drops from the sieve mesh, reduces sieve 2 and is blockked up, improves sieve 2's screening ability simultaneously.

The knocking positions of the sieve plate 2 corresponding to the cams 7 are all vertical to the sieve plate 2 and are fixed with push blocks 9, so that the cams 7 can knock the push blocks 9 when knocking the sieve plate 2. The pushing block 9 is pushed to make the sieve plate 2 slide along the sliding rail 51, and after the sieve plate 2 slides to a certain distance, the extension spring 64 pulls the sieve plate 2 to move to the original position, so that the sieve plate 2 forms reciprocating motion along the sliding rail 51 along the length direction. Further improve the vibration range of sieve 2, be favorable to blockking up the grit vibration in 2 holes of sieve and come out, dredge the sieve mesh, reduce the risk that sieve 2 blockked up.

The working principle of the embodiment is as follows:

in actual use, after the material enters the screening machine, the material is screened on the screening plate, and simultaneously the cam 7 continuously and intermittently knocks the screening plate 2, so that the screening plate 2 slides up and down along the sliding rod 62 and slides along the length direction of the sliding rail 51, and meanwhile, the arrangement of the compression spring 63 and the extension spring 64 enables the screening plate 2 to quickly recover to the original state after sliding. Through this kind of mode, improve the screening ability of sieve 2 greatly, be favorable to blockking up the grit vibration in 2 holes of sieve and come out, keep 2 sieve meshes of sieve unblocked, reduce the risk that sieve 2 is blockked up.

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 without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The anti-blocking screening machine comprises a machine body (1) and a driving device, wherein a screening plate (2) is arranged in the machine body (1), and the anti-blocking screening machine is characterized in that an extrusion plate (5) is fixed in the machine body (1), and the extrusion plate (5) is arranged above the screening plate (2); a sliding rod (62) is arranged on one side, close to the sieve plate (2), of the extrusion plate (5), and one end, far away from the extrusion plate (5), of the sliding rod (62) movably penetrates through the sieve plate (2); the vibrating screen is characterized in that a vibrating device used for knocking the screen plate (2) is arranged inside the machine body (1), and the vibrating device comprises a knocking piece for knocking the screen plate (2) and a driving piece for driving the knocking piece.

2. The anti-blocking screening machine according to claim 1, characterized in that a first elastic member is sleeved on the sliding rod (62), and two ends of the first elastic member are respectively abutted against the fixed block (6) and the screening plate (2).

3. The anti-blocking screening machine according to claim 1, characterized in that a slide rail (51) is arranged on one side of the extrusion plate (5) close to the screen plate (2) along the length direction of the extrusion plate, a fixed block (6) is arranged in the slide rail (51) in a sliding manner, and the slide rod (62) is arranged on the fixed block (6); and a second elastic part for driving the fixed block (6) to reset is connected between the fixed block (6) and the inner wall of the sliding rail (51).

4. The anti-blocking screening machine according to claim 3, characterized in that the two opposite sides of the fixing block (6) are rotatably connected with rollers (61), and the fixing block (6) is in sliding fit with the sliding rails (51) through the rollers (61).

5. The anti-blocking screening machine according to claim 3, characterized in that one side of the screening plate (2) close to the knocking piece is provided with a push block (9) for matching with the knocking piece; when the device works, the knocking piece knocks the push block (9).

6. The anti-blocking screening machine according to claim 1 or 5, characterized in that the knocking member is a cam (7), the driving member is a driving motor (8), the driving motor (8) is fixed on the outer wall of the machine body (1), and the cam (7) is fixedly arranged on an output shaft of the driving motor (8).

7. Anti-blocking screening machine according to claim 6, characterized in that there are two sets of said vibration devices, two of said vibration devices being spaced apart on the side of the screening plate (2) facing away from the corresponding stripper plate (5).

8. The anti-blocking screening machine according to claim 1, characterized in that the screening plate (2) is provided with two blocks at intervals up and down the machine body (1); the machine body (1) is internally fixed with a material conveying plate (3), and the material conveying plate (3) is positioned between the upper sieve plate and the lower sieve plate (2).