CN212143395U

CN212143395U - Probability screen

Info

Publication number: CN212143395U
Application number: CN202020539677.3U
Authority: CN
Inventors: 郑玉军; 郭良义; 苗长彬; 程鑫; 范志刚; 董向龙; 冯磊
Original assignee: Xinxiang Xianfeng Vibration Machinery Co ltd
Current assignee: Xinxiang Xianfeng Vibration Machinery Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-15
Anticipated expiration: 2030-04-14

Abstract

A probability sieve comprises a sieve body, wherein the upper end and the lower end of the sieve body are respectively provided with a feed inlet and a feed port, a first screen, a second screen and a third screen are arranged in the sieve body from top to bottom, the right side of the feed port is also provided with a waste discharge port, the lower sides of the first screen, the second screen and the third screen are respectively provided with a first feed plate, a second feed plate and a third feed plate which are connected with the feed port, the upper sides of the waste discharge port on the first feed plate, the second feed plate and the third feed plate are respectively provided with a through groove, a baffle plate is hinged in each through groove, and a control device for driving the baffle plate to rotate is arranged in the sieve body; the utility model discloses the structure is ingenious, thinks about the novelty, can not tear open when carrying out the efficient screening to the material clear up the screen cloth, clear up effectually, and control is convenient, and combines pay-off mouth and the exhaust outlet that sets up through controlling means, thereby can avoid the dregs that fall when clearing up to get into the degree of purity that the pay-off mouth influences the material and collects.

Description

Probability screen

Technical Field

The utility model relates to a shale shaker technical field, in particular to probability sieve.

Background

The probability screening method is a probability screening method which is established on the basis of a statistical method for researching the screening-through probability of a scattered material group consisting of particles with different particle sizes on a screen surface; the screening machine embodying the probability screening method is called a probability screening machine, and is called a probability screen for short.

The probability screen mainly comprises a screen box, a vibration exciter and a supporting device (or a hanging device); the exciting force generated by the vibration exciter acts on the screen box to drive the screen box to vibrate, so that the materials are screened.

The existing probability sieve is mostly driven by two vibration exciters, the exciting forces generated by the two vibration exciters are the same, the directions of the exciting forces are opposite, the two vibration exciters generate a linear exciting force after self-synchronization to drive the sieve box to vibrate linearly, namely, the vibration track of the sieve box is a straight line; when the screened materials are thin, the probability screen of linear vibration is easy to block the screen, and after the screen plate screens the materials, the materials left on the screen are difficult to clean, so that the next screening work of the screening machine is influenced; when the sieve blockked up the trouble, unable quick change the mediation to the sieve, sieve life is low.

A probability screen is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defect of prior art, the utility model aims at providing a probability sieve, the effectual easy problem of blockking up of probability sieve of having solved.

The technical scheme that the utility model solves is that, the utility model comprises a screen body, the upper end and the lower end of the screen body are respectively provided with a feed inlet and a feed port, a first screen, a second screen and a third screen are arranged in the screen body from top to bottom, the right side of the feed port is also provided with a waste discharge port, the lower sides of the first screen, the second screen and the third screen are respectively provided with a first feed plate, a second feed plate and a third feed plate which are connected with the feed port, the upper sides of the waste discharge port on the first feed plate, the second feed plate and the third feed plate are respectively provided with a through groove, a striker plate is hinged in the through grooves, and a control device for driving the striker plate to rotate is arranged in the screen body;

the rear end of screen frame is equipped with the working chamber, first screen cloth, the upside of second screen cloth and third screen cloth still is equipped with the first spout that feeds through the working chamber respectively, second spout and third spout, first spout, slidable mounting has first fixed plate in second spout and the third spout respectively, second fixed plate and third fixed plate, first fixed plate, rotate respectively on second fixed plate and the third fixed plate and install a plurality of axis of rotation, the lower extreme of axis of rotation is equipped with the carousel, the lower extreme of carousel is equipped with the brush, be equipped with the mount of connecting first fixed plate in the working chamber, the mount of second fixed plate and third fixed plate, still be equipped with drive carousel pivoted first drive arrangement on the mount, the lower extreme of mount still is equipped with the drive mount according to first screen cloth, the second drive arrangement of second screen cloth or third screen cloth parallel direction removal.

The invention has the beneficial effects that: the utility model discloses the structure is ingenious, thinks about the novelty, can not tear open when carrying out the efficient screening to the material clear up the screen cloth, clear up effectually, and control is convenient, and combines pay-off mouth and the exhaust outlet that sets up through controlling means, thereby can avoid the dregs that fall when clearing up to get into the degree of purity that the pay-off mouth influences the material and collects.

Drawings

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

Fig. 2 is an enlarged view of a in fig. 1 according to the present invention.

Fig. 3 is a cross-sectional view taken along the direction B-B in fig. 2 according to the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Example (b):

as shown in figures 1 to 3, the utility model comprises a screen body 1, a feed inlet 2 and a feed port 3 are respectively arranged at the upper end and the lower end of the screen body 1, a first screen 4, a second screen 5 and a third screen 6 are arranged in the screen body 1 from top to bottom, the first screen 4, the second screen 5 and the third screen 6 are all obliquely arranged in the screen body 1, a waste discharge port 7 is also arranged at the right side of the feed port 3, the opening of the feed port 3 is towards the left, the opening of the waste discharge port 7 is towards the lower, the first screen 4, a first feeding plate 8, a second feeding plate 9 and a third feeding plate 10 which are connected with the feeding ports 3 are respectively arranged at the lower sides of the second screen 5 and the third screen 6, through grooves 11 are respectively arranged on the first feeding plate 8, the second feeding plate 9 and the third feeding plate 10 at the upper sides of the waste discharge ports 7, striker plates 12 are hinged in the through grooves 11, and a control device for driving the striker plates 12 to rotate is arranged in the screen body 1;

the rear end of the screen body 1 is provided with a working chamber 13, the upper sides of the first screen 4, the second screen 5 and the third screen 6 are respectively provided with a first chute, a second chute and a third chute which are communicated with the working chamber 13, a first fixing plate 14, a second fixing plate 15 and a third fixing plate 16 are respectively arranged in the first chute, the second chute and the third chute in a sliding manner, the first fixing plate 14, the second fixing plate 15 and the third fixing plate 16 are respectively provided with a plurality of rotating shafts 17 in a rotating manner, the lower end of each rotating shaft 17 is provided with a rotating disc 18, the lower end of each rotating disc 18 is provided with a brush 19, the rotating disc 18 can be rotated to brush the parts contacted with the first screen 4, the second screen 5 and the third screen 6, a fixing frame 20 connected with the first fixing plate 14, the second fixing plate 15 and the third fixing plate 16 is arranged in the working chamber 13, the fixing frame 20 is further provided with a first driving device for driving the, the lower end of the fixing frame 20 is further provided with a second driving device for driving the fixing frame 20 to move in a direction parallel to the first screen 4, the second screen 5 or the third screen 6, so that the brush 19 can completely brush the first screen 4, the second screen 5 and the third screen 6.

The control device comprises a first ejector rod 21, a second ejector rod 22 and a third ejector rod 23 which are respectively arranged at the lower sides of a first screen 4, a second screen 5 and a third screen 6, the first ejector rod 21, the second ejector rod 22 and the third ejector rod 23 are parallel, the upper ends of the first ejector rod 21, the second ejector rod 22 and the third ejector rod 23 respectively push against the lower end surfaces of the baffle plates 12 on the first feeding plate 8, the second feeding plate 9 and the third feeding plate 10, the second ejector rod 22 penetrates through the second feeding plate 9, the third ejector rod 23 penetrates through the third feeding plate 10, the second ejector rod 22 is connected to the left side of the first ejector rod 21 through a connecting rod, the third ejector rod 23 is connected to the left side of the second ejector rod 22 through a connecting rod, so that the first ejector rod 21, the second ejector rod 22 and the third ejector rod 23 simultaneously move up and down, the lower end of the first ejector rod 21 is connected with a pull rope 24, a telescopic rod 25 positioned at the upper side of the lower end of the, the telescopic rod 25 can be a hydraulic rod, and the right end of the telescopic rod 25 is connected with the pull rope 24 to form a structure that the first push rod 21 is driven to move up and down by the extension and contraction of the telescopic rod 25.

The right end of the telescopic rod 25 is further provided with a guide wheel 26 installed on the side wall of the screen body 1, the pull rope 24 is installed on the guide wheel 26 in an attaching mode, and the pull rope 24 can be prevented from being abraded when the telescopic rod 25 drives the pull rope 24 to move.

The first driving device comprises a first gear 27 arranged at the upper end of the rotating shaft 17, a plurality of first motors 28 for driving the first gear 27 to rotate are arranged on the fixed frame 20, and a first toothed chain 29 meshed with the first gear 27 is arranged on the rotating shaft of each first motor 28.

The second driving device comprises a second toothed chain 30 arranged at the lower end of the working cavity 13, the transmission direction of the second toothed chain 30 is parallel to the first screen 4, the second screen 5 or the third screen 6, the second driving device further comprises a second gear 31 arranged at the lower end of the fixing frame 20, the second gear 31 is meshed with the second toothed chain 30, and a second motor for driving the second toothed chain 30 to move is further arranged in the working cavity 13.

In order to ensure that the first fixing plate 14, the second fixing plate 15, the third fixing plate 16 and devices mounted on the first fixing plate do not influence the screening work when the screen body 1 is subjected to the screening work and to avoid the screen body from being impacted and worn by materials, the left end of the screen body 1 is provided with a mounting cavity 33, the mounting cavity 33 is positioned at the upper side of the feeding port 3 and the left sides of the first screen cloth 4, the second screen cloth 5 and the third screen cloth 6, the left ends of the first sliding chute, the second sliding chute and the third sliding chute extend into the mounting cavity 33, and when the screen body 1 is subjected to the screening work, the first fixing plate 14, the second fixing plate 15 and the third fixing plate 16 are fed into the mounting cavity 33 through the second driving device to prevent the screening work from being interfered.

When the material receiving device is used, materials enter the screen body 1 through the feeding hole 2, the vibration exciter arranged at the lower end of the screen body 1 is turned on, the materials are screened on the first screen 4, the second screen 5 and the third screen 6, and the material slide ways on the first screen 4, the second screen 5 and the third screen 6 are arranged on the material receiving device and then are fed into the feeding hole 3 through the material receiving device.

When the screening efficiency of the device is reduced due to the blockage of the screen holes on the first screen 4, the second screen 5 and the third screen 6, the telescopic rod 25 is controlled to contract to drive the first ejector rod 21, the second ejector rod 22 and the third ejector rod 23 to move upwards, so that the first ejector rod 21, the second ejector rod 22 and the third ejector rod 23 respectively eject the baffle plates 12 in the through grooves 11 of the first feeding plate 8, the second feeding plate 9 and the third feeding plate 10 to enable the through grooves 11 to be communicated with the waste discharge port 7 on the lower side, at the moment, the rotary disc 18 is controlled to rotate by the first motor 28, the second toothed chain 30 is controlled to rotate by the second motor, the brushes 19 on the fixing frame 20 leave the mounting cavity 33 and clean the first screen 4, the second screen 5 and the third screen 6, the other cleaned waste through grooves 11 enter the waste discharge port 7 to be discharged, the second motor is controlled to rotate again after the cleaning is completed, so that the fixing frame 20 enters the mounting cavity 33, and after the cleaning is finished, the screening work can be continued.

The foregoing detailed description/examples are specific embodiments of the present invention, and are intended to be illustrative of the principles of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A probability sieve comprises a sieve body (1) and is characterized in that the upper end and the lower end of the sieve body (1) are respectively provided with a feed inlet (2) and a feed port (3), a first screen (4), a second screen (5) and a third screen (6) are arranged in the sieve body (1) from top to bottom, the right side of the feed port (3) is also provided with a waste discharge port (7), the lower sides of the first screen (4), the second screen (5) and the third screen (6) are respectively provided with a first feed plate (8) connected with the feed port (3), the waste material conveying device comprises a second conveying plate (9) and a third conveying plate (10), wherein through grooves (11) are formed in the upper sides of waste material discharge ports (7) on the first conveying plate (8), the second conveying plate (9) and the third conveying plate (10), baffle plates (12) are hinged in the through grooves (11), and a control device for driving the baffle plates (12) to rotate is arranged in a screen body (1);

the rear end of the screen body (1) is provided with a working cavity (13), the upper sides of the first screen (4), the second screen (5) and the third screen (6) are respectively provided with a first chute, a second chute and a third chute which are communicated with the working cavity (13), a first fixing plate (14), a second fixing plate (15) and a third fixing plate (16) are respectively arranged in the first chute, the second chute and the third chute in a sliding manner, the first fixing plate (14), the second fixing plate (15) and the third fixing plate (16) are respectively provided with a plurality of rotating shafts (17) in a rotating manner, the lower end of each rotating shaft (17) is provided with a turntable (18), the lower end of each turntable (18) is provided with a brush (19), a fixing frame (20) which is connected with the first fixing plate (14), the second fixing plate (15) and the third fixing plate (16) is arranged in the working cavity (13), and the fixing frame (20) is further provided with a first driving device which drives the turntable, the lower end of the fixing frame (20) is also provided with a second driving device for driving the fixing frame (20) to move in the direction parallel to the first screen (4), the second screen (5) or the third screen (6).

2. The probability screen according to claim 1, characterized in that the control device comprises a first ejector rod (21), a second ejector rod (22) and a third ejector rod (23) which are respectively arranged at the lower sides of the first screen (4), the second screen (5) and the third screen (6), the upper ends of the first ejector rod (21), the second ejector rod (22) and the third ejector rod (23) respectively push against the lower end surfaces of the baffle plates (12) on the first feeding plate (8), the second feeding plate (9) and the third feeding plate (10), the second ejector rod (22) is connected to the left side of the first ejector rod (21) through a connecting rod, the third ejector rod (23) is connected to the left side of the second ejector rod (22) through a connecting rod, the lower end of the first ejector rod (21) is connected with a pull rope (24), a telescopic rod (25) is further arranged in the screen body (1), and the right end of the telescopic rod (25) is connected with the pull rope (24), the structure that the first mandril (21) is driven to move up and down by the extension and contraction of the telescopic rod (25) is formed.

3. The probability screen according to claim 2, characterized in that the right end of the telescopic rod (25) is further provided with a guide wheel (26) installed on the side wall of the screen body (1), and the pull rope (24) is installed on the guide wheel (26) in an attaching manner.

4. A probability screen as claimed in claim 1, characterised in that the first driving means comprises a first gear (27) arranged at the upper end of the rotating shaft (17), the fixed frame (20) is provided with a plurality of first motors (28) for driving the first gear (27) to rotate, and the rotating shaft of the first motors (28) is provided with a first toothed chain (29) engaged with the first gear (27).

5. A probability screen according to claim 1, characterized in that the second driving device comprises a second toothed chain (30) arranged at the lower end of the working chamber (13), the transmission direction of the second toothed chain (30) is parallel to the first screen (4), the second screen (5) or the third screen (6), the second driving device further comprises a second gear (31) arranged at the lower end of the fixed frame (20), the second gear (31) is engaged with the second toothed chain (30), and a second motor for driving the second toothed chain (30) to move is arranged in the working chamber (13).

6. A probability screen according to claim 1, characterised in that the screen body (1) is provided with a housing chamber (33) at the left end, and the left ends of the first, second and third chutes extend into the housing chamber (33).