CN213349654U

CN213349654U - Vibrating screen

Info

Publication number: CN213349654U
Application number: CN202021702743.0U
Authority: CN
Inventors: 王仲红; 孙强; 王雷鸣
Original assignee: Beijing Jingcheng Jiuzhu Energy Saving Technology Co ltd
Current assignee: Beijing Jingcheng Jiuzhu Energy Saving Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-06-04
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a vibrating screen, this vibrating screen include box (1) and screen cloth (3), are equipped with first slide (21) and second slide (22) at the interval respectively on the relative internal face of this box (1), so that relative both sides interval between first slide (21) and the second slide (22) on the internal face forms into relative mounting groove, frame (31) detachably of screen cloth (3) is inserted and is established in the mounting groove, first slide (21) with be equipped with sealing mechanism between frame (31) to fill clearance between the two. The utility model discloses be equipped with sealing mechanism between the frame of first slide and screen cloth, eliminate the clearance between its and the frame of screen cloth as far as possible to prevent that the material on the screen cloth from getting into in this clearance and influencing the screening effect.

Description

Vibrating screen

Technical Field

The utility model relates to a screening plant specifically relates to a vibrating screen.

Background

The raw materials for producing the asphalt concrete comprise gravels, asphalt, stone powder and various additives, and the gravels with different particle sizes need to be separated in the process of producing the asphalt concrete, and a vibrating screening machine is needed at the moment.

The existing vibrating screening machine generally comprises a screen box, wherein multiple layers of screen meshes are arranged in the screen box at intervals from top to bottom, the screen meshes of the multiple layers of screen meshes are sequentially reduced from top to bottom, a vibrating mechanism for realizing the vibrating effect of the vibrating screening machine is arranged on the screen box, the vibrating mechanism comprises a motor, a vibrating connection structure, a vibrating screening flywheel and the like, and the vibrating screening machine is a necessary mechanism for realizing vibration of the existing vibrating screening machine.

In order to facilitate replacement of the screen, the screen is often inserted into the screen box and then fixed by fastening structures. For example, chinese patent with publication number CN210701078U discloses a vibrating screen classifier for asphalt concrete, which comprises a screen box, wherein multiple layers of screen meshes are arranged in the screen box from top to bottom, a frame is arranged on each layer of screen mesh along the edge of the screen mesh, two slide ways are arranged in the screen box along the length direction of the screen box, the two slide ways are respectively and fixedly connected to two inner walls of the screen box, each slide way is composed of two parallel slide plates, the frame is located between the two slide plates, and a limiting component for limiting the frame to slide out of the slide ways is arranged on the outer side wall of the screen box. This scheme has the effect that relatively makes things convenient for to dismantle screen cloth and frame from the sieve case. However, in order to facilitate the insertion of the screen into the mounting groove, a screen assembling allowance needs to be left between the two sliding plates, so that a gap exists between the screen and the sliding plates, and the material on the screen falls down from the gap, thereby affecting the screening effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a problem that the aspect will be solved provides a shale shaker, and this shale shaker can eliminate the clearance that the screen cloth was pegged graft, guarantees the screening effect.

In order to achieve the above object, the utility model provides a vibrating screen, this vibrating screen and screen cloth, the interval is equipped with first slide and second slide on the relative internal face of this box respectively to make relative both sides interval between first slide and the second slide on the internal face forms to relative mounting groove, the frame detachably of screen cloth inserts and establishes in the mounting groove, first slide with be equipped with sealing mechanism between the frame to fill clearance between the two.

Specifically, the sealing mechanism is a sealing strip; or

The sealing mechanism is a long strip-shaped sealing air bag, a groove for containing the sealing air bag is formed in the first sliding plate, and an inflating nozzle connected with the sealing air bag is arranged at the end of the first sliding plate.

Preferably, the second slide plate is slidably provided on an inner wall of the case to enable the interval to be adjusted relative to the first slide plate.

Preferably, the box body is provided with an auxiliary mounting device, and the auxiliary mounting device can drive the second sliding plate to lift so that the first sliding plate is in contact with the frame of the screen.

The auxiliary mounting device comprises an auxiliary mounting plate which is positioned on the inner wall of the box body and is adjacent to the second sliding plate, a supporting air bag is arranged on the auxiliary mounting plate, and an inflating nozzle connected with the supporting air bag is arranged at the end of the auxiliary mounting plate; or

The auxiliary mounting device comprises a screw rod connected to the box body through threads and a cam positioned on the end head of the inner side of the screw rod.

Further specifically, the auxiliary mounting plate comprises longitudinal plates and transverse plates, wherein the longitudinal plates are arranged along the length direction of the box body, and the transverse plates are used for connecting two adjacent longitudinal plates.

Preferably, there are two longitudinal plates, and the two longitudinal plates are symmetrically arranged with respect to the longitudinal center line of the first sliding plate.

Preferably, a rotary adjusting handle is fixedly arranged on the outer end head of the screw rod.

Preferably, the cam is connected to the end of the inner side of the screw rod, and a locking nut is sleeved on a rod body of the screw rod, which is located outside the box body.

Preferably, there are a plurality of said screws, and there are one or more said cams on each said screw.

Through the technical scheme, the utility model discloses a following beneficial effect:

1. the utility model discloses be equipped with sealing mechanism between the frame of first slide and screen cloth, this sealing mechanism can eliminate the clearance between its and the frame of screen cloth as far as possible to prevent that the material on the screen cloth from getting into in this clearance and influencing the screening effect.

2. The utility model discloses an among the preferred scheme, the second slide slidable is established on the inner wall of box, when carrying out the dismantlement or the installation work of screen cloth, the second slide is down for clearance between its and the first slide increases, and back in the screen cloth inserts the mounting groove, the second slide drives the screen cloth and goes upward, so that the clearance between first slide in order to eliminate first slide and the frame is hugged closely to the frame of screen cloth.

3. The utility model discloses an among the preferred scheme, establish supplementary installation device in the below of second slide, can reduce installation intensity and guarantee the installation effect.

Drawings

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

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;

fig. 4 is a schematic structural view of a fourth embodiment of the present invention;

fig. 5 is a schematic structural view of the L-shaped hook of the present invention.

Description of the reference numerals

1 first slide plate of box 21

22 second slide 23 auxiliary mounting plate

3 Screen 31 frame

4 sealing strip 5 sealing air bag

6 support gasbag 71 screw rod

72 cam 73 handle

74 locking nut 8L-shaped hook

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the following description, for the sake of clarity, directional terms such as "outer", "inner", etc. are used in a manner similar to those normally used for components of a shaker system, and are intended to be used only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and therefore the features defined "first", "second" may explicitly or implicitly include one or more of the features described.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the vibrating screen of the present invention includes a box body 1 and a screen 3, wherein a first sliding plate 21 and a second sliding plate 22 are respectively disposed on the opposite inner wall surfaces of the box body 1 at intervals, so that the first sliding plate 21 and the second sliding plate 22 on the inner wall surfaces are formed as opposite mounting grooves, a frame 31 of the screen 3 is detachably inserted into the mounting grooves, and a sealing mechanism is disposed between the first sliding plate 21 and the frame 31 to fill the gap therebetween. The first sliding plate 21 is located above the second sliding plate 22, and after the screen cloth 3 is inserted into the mounting groove, the first sliding plate 21 abuts against the second sliding plate 22 due to the action of gravity, a gap exists between the first sliding plate 21 and the frame 31 of the screen cloth 3, and the material on the screen cloth 3 may leak from the gap to affect the screening effect or be stuck in the gap to cause difficulty in disassembling the screen cloth 3, so that a sealing mechanism is arranged between the first sliding plate 21 and the frame 31, and the sealing mechanism can fill the gap between the first sliding plate 21 and the frame 31 of the screen cloth 3 to prevent the material on the screen cloth 3 from entering the gap.

The sealing mechanism is preferably arranged at the bottom of the first sliding plate 21, and specifically, as shown in fig. 1, the sealing mechanism is a sealing strip 4, and the sealing strip 4 is long-strip-shaped along the length direction of the first sliding plate 21.

In addition, as shown in fig. 2, the sealing mechanism may also be a long sealed airbag 5, a groove for accommodating the sealed airbag 5 is provided on the first sliding plate 21, and an inflation nozzle connected with the sealed airbag 5 is provided on an end of the first sliding plate 21. Before the screen 3 is inserted into the mounting groove, the sealing air bag 5 is not inflated, a sufficient insertion gap is reserved for the screen 3, so that the placing work of the screen 3 can be smoothly carried out, after the screen 3 is inserted into the mounting groove, the sealing air bag 5 is inflated, and the inflated sealing air bag 5 fills the gap between the frame 31 of the screen 3 and the first sliding plate 21, so that materials are prevented from entering the gap.

In order to provide enough operation margin for the mounting and dismounting of the screen 3 so as to make the work smooth, the second sliding plate 22 is slidably provided on the inner wall of the box body 1 to be able to adjust the interval with respect to the first sliding plate 21, i.e., when the dismounting or mounting work is performed, the second sliding plate 22 moves downward so that the gap between the second sliding plate 22 and the first sliding plate 21 increases, and after the screen 3 is inserted into the mounting groove, the second sliding plate 22 moves upward the screen so that the frame 31 of the screen 3 is closely attached to the first sliding plate 21 to eliminate the gap between the first sliding plate 21 and the frame. Specifically, a sliding block may be disposed at an end of the second sliding plate 22 close to the box body 1, and a corresponding sliding chute may be disposed on an inner wall of the box body 1, so that the second sliding plate 22 can slide up and down along the inner wall of the box body 1. The descending can depend on the gravity of the user, and the ascending can be manually or by means of an auxiliary tool.

In order to conveniently lift the second sliding plate 22, an auxiliary mounting device is arranged on the box body 1, and the auxiliary mounting device can drive the second sliding plate 22 to lift so that the first sliding plate 21 is contacted with the frame of the screen 3.

Specifically, as the utility model discloses an embodiment of supplementary installation device, as shown in fig. 3, supplementary installation device is including being located on the inner wall of box 1 and neighbouring the supplementary mounting panel 23 of second slide 22, be equipped with support gasbag 6 on the supplementary mounting panel 23, the end department of supplementary mounting panel 23 be equipped with the charging connector that support gasbag 6 is connected, insert the in-process around screen cloth 3 inserts the mounting groove, support gasbag 6 does not aerify, inserts the work completion back, aerifys support gasbag 6, makes it lift second slide 22 to frame 31 lifting with screen cloth 3 to contact with first slide 21, in order to eliminate the clearance between the two.

In order to ensure the stability of the second sliding plate 22 in lifting and prevent the second sliding plate from being raised, the auxiliary mounting plate 23 includes a plurality of longitudinal plates along the length direction of the box body 1 and transverse plates connecting two adjacent longitudinal plates, preferably, two longitudinal plates are arranged symmetrically with the longitudinal center line of the first sliding plate 21, and each longitudinal plate is provided with a strip-shaped supporting airbag 6.

In addition, as another embodiment of the auxiliary mounting device of the present invention, as shown in fig. 4, the auxiliary mounting device includes a screw 71 screwed to the case 1 and a cam 72 located at an inner end of the screw 71. Before and during insertion of the screen 3 into the mounting groove, the thinner side of the cam 72 faces the bottom of the second slide plate 22, and after the screen 3 is inserted into the mounting groove, the screw 71 is screwed to rotate the cam 72 so that the thicker side, i.e., the convex position, faces the bottom of the second slide plate 22 to lift the second slide plate 22.

In order to facilitate the observation of the direction of the cam 72, a rotation adjusting handle 73 is fixedly arranged on the outer end head of the screw rod 71, and the handle 73 is preferably in the same direction as the protruding position of the cam 72.

In order to ensure the uniformity of the lifting work, the screw rods 71 are provided with a plurality of, for example, two and one in the middle of the two ends of the box body 1, respectively, and the cams 72 may be provided with a plurality of or one in one-to-one correspondence with the screw rods 71.

The cam 72 may be fixed to the inner end of the screw 71, or may be keyed to the inner end of the screw 71. When the screen mesh 3 is fixedly connected, in order to avoid excessive vibration of the cam 72 in the vibrating process of the vibrating screen, a locking nut 74 can be sleeved on the rod body of the screw 71 outside the box body 1, after the screen mesh 3 is installed, the screw 71 is rotated to enable the cam 72 to be tightly attached to the inner wall of the box body 1, and then the locking nut 74 is screwed to enable the cam 72 to be tightly attached to the outer wall of the box body 1; when keyed, the cam 72 can be removed from the screw 71 after the screen has been installed, even though it need not be involved in the vibrating operation.

In order to prevent the screen 3 from sliding off the second sliding plate 22 during the installation process, a rotatable L-shaped hook 8 may be provided at the end of the second sliding plate 22, as shown in fig. 5, the L-shaped hook 8 may be connected with the second sliding plate 22 through a screw, after the screen 3 is placed on the second sliding plate 22, the L-shaped hook 8 is inserted into a corresponding screw hole on the second sliding plate 22, and the L-shaped hook 8 is rotated to be tightly attached to the frame 31 of the screen 3.

Corresponding mounting holes are formed in the first sliding plate 21, the second sliding plate 22 and the frame 31 of the screen 3, and after the screen 3 is inserted into the mounting groove, the first sliding plate 21, the second sliding plate 22 and the frame 31 of the screen 3 are fastened and connected through bolts, so that the screen 3 can be mounted. The positions of the mounting holes can be arranged at three positions, such as two positions at two ends and a middle position.

In addition, the vibrating screen further comprises a vibrating mechanism, and the structure of the vibrating mechanism and the connection mode of the vibrating mechanism and the box body 1 are the prior art and are not described herein.

The following is a preferred embodiment of the present invention.

As shown in fig. 4, the vibrating screen includes a box 1 and a screen 3, a first sliding plate 21 and a second sliding plate 22 are respectively arranged on opposite inner wall surfaces of the box 1 at intervals, so that the first sliding plate 21 and the second sliding plate 22 on the inner wall surfaces at opposite sides are formed into opposite mounting grooves at intervals, a frame 31 of the screen 3 is detachably inserted into the mounting grooves, a sealing strip 4 is arranged at the bottom of the first sliding plate 21, an auxiliary mounting device is arranged below the second sliding plate 22 on the box 1, the auxiliary mounting device includes a screw 71 connected to the box 1 through threads and a cam 72 connected to an inner end of the screw 71 through keys, a rotation adjusting handle 73 in the same direction as a protruding position of the cam 72 is fixedly arranged on an outer end of the screw 71, and a locking nut 74 is sleeved on a rod body of the screw 71 outside the box 1. The end of the second sliding plate 22 is provided with a threaded hole, and an L-shaped hook 8 is detachably connected in the threaded hole.

When the screen cloth 3 of the vibrating screen is inserted into the mounting groove, the auxiliary mounting device does not apply force to the second sliding plate 22, after the screen cloth 3 is inserted into the mounting groove, the L-shaped hook 8 rotates to the hook body to face upwards, the main screen cloth 3 is blocked to prevent the main screen cloth 3 from sliding downwards, then the screw rod 71 is screwed to drive the cam 72 to jack the second sliding plate 22, and after the jack is in place, the first sliding plate 21, the frame 31 of the screen cloth 3 and the second sliding plate 22 are tightly connected through bolts to achieve mounting of the screen cloth 3. After the installation is completed, the cam 72 is removed from the screw 71, and the screw 71 is screwed so that its outer end is closely attached to the outer wall of the case 1.

As can be seen from the above description, the present invention has the following advantages: a sealing mechanism is arranged between the first sliding plate 21 and the frame 31 of the screen 3, and a gap between the first sliding plate and the frame 31 of the screen 3 is eliminated as much as possible, so that the material on the screen 3 is prevented from entering the gap to influence the screening effect; the second sliding plate 22 is slidably arranged on the inner wall of the box body 1, when the screen 3 is detached or installed, the second sliding plate 22 moves downwards to increase the gap between the second sliding plate 22 and the first sliding plate 21, and after the screen 3 is inserted into the installation groove, the second sliding plate 22 drives the screen to move upwards to enable the frame 31 of the screen 3 to be tightly attached to the first sliding plate 21 to eliminate the gap between the first sliding plate 21 and the frame; an auxiliary installation device is arranged below the second sliding plate 22, so that the installation strength can be reduced and the installation effect can be ensured.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The vibrating screen is characterized by comprising a box body (1) and a screen (3), wherein a first sliding plate (21) and a second sliding plate (22) are arranged on opposite inner wall surfaces of the box body (1) at intervals respectively, so that the intervals between the first sliding plate (21) and the second sliding plate (22) on the inner wall surfaces on the opposite sides are formed into opposite mounting grooves, a frame (31) of the screen (3) is detachably inserted into the mounting grooves, and a sealing mechanism is arranged between the first sliding plate (21) and the frame (31) to fill a gap between the first sliding plate and the frame.

2. The vibrating screen of claim 1, wherein the sealing mechanism is a sealing strip (4); or

The sealing mechanism is a long strip-shaped sealing air bag (5), a groove for containing the sealing air bag (5) is formed in the first sliding plate (21), and an inflating nozzle connected with the sealing air bag (5) is arranged at the end of the first sliding plate (21).

3. Vibrating screen according to claim 1 or 2, characterised in that the second slide (22) is slidably arranged on the inner wall of the box (1) to enable the adjustment of the spacing with respect to the first slide (21).

4. A vibrating screen as claimed in claim 3, characterised in that the box (1) is provided with auxiliary mounting means able to drive the second slide (22) up so as to bring the first slide (21) into contact with the border (31) of the screen (3).

5. The vibrating screen of claim 4, characterized in that the auxiliary mounting means comprises an auxiliary mounting plate (23) located on the inner wall of the box body (1) and adjacent to the second sliding plate (22), a supporting air bag (6) is arranged on the auxiliary mounting plate (23), and an inflation nozzle connected with the supporting air bag (6) is arranged at the end of the auxiliary mounting plate (23); or

The auxiliary mounting device comprises a screw rod (71) connected to the box body (1) through threads and a cam (72) located on the end head of the inner side of the screw rod (71).

6. The vibrating screen of claim 5, characterised in that the auxiliary mounting plate (23) comprises longitudinal plates along the length of the box (1) and transverse plates connecting two adjacent longitudinal plates.

7. Vibrating screen according to claim 6, characterised in that said longitudinal plates are two and are arranged symmetrically with respect to the longitudinal centre line of said first sliding plate (21).

8. The vibrating screen of claim 5, wherein a rotary adjustment handle (73) is fixedly provided on an outer end of the screw (71).

9. The vibrating screen according to claim 5, characterised in that the cam (72) is connected to the inner end of the screw (71), the screw (71) being provided with a locking nut (74) on the rod outside the box (1).

10. The vibrating screen of claim 5, wherein there are a plurality of said screws (71), and there are one or more of said cams (72) on each of said screws (71).