CN212143342U

CN212143342U - Large-amplitude cantilever screen mesh and vibrating screen

Info

Publication number: CN212143342U
Application number: CN202020453619.9U
Authority: CN
Inventors: 孙庆忠; 刘奇; 肖珂
Original assignee: Jinan Zhongran Science & Technology Development Co ltd
Current assignee: Jinan Zhongran Science & Technology Development Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-15
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to a shale shaker structure field especially relates to a big amplitude cantilever screen cloth and shale shaker, can improve the vibration range of screen cloth. The utility model provides a large-amplitude cantilever screen, includes cross arm, sieve stick and two curb plates, the cross arm sets up between the curb plate, distributes along curb plate length direction be equipped with a plurality of sieve sticks on the cross arm length direction, set up the main spring unit that shakes between the curb plate, the cross arm is connected with the main spring unit that shakes. The screen rod is connected with the side plate through the main vibration spring assembly, and is different from the traditional rigid connection, so that extra relative movement is generated between the screen rod and the side plate, and the integral amplitude is increased.

Description

Large-amplitude cantilever screen mesh and vibrating screen

Technical Field

The utility model relates to a shale shaker structure field especially relates to a big amplitude cantilever screen cloth and shale shaker.

Background

The vibrating screen is a screening device widely applied, in particular to the fields of metallurgical industry, such as blast furnace ironmaking, ore screening and the like. The vibrating screen operates by utilizing reciprocating rotary type vibration generated by vibrator excitation. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotation or reciprocating vibration, and the materials to be screened continuously raise and fall, so that the effect of rapidly screening the materials with different volumes is realized.

The cantilever screen vibrating screen is one kind of vibrating screen, and has several layers of screen rods with certain interval for sieving ore and sintered material. For example, in a patent publication No. CN201493257U, entitled screening device for sintered material, the applicant discloses a screening device which can screen sintered material using a sieve bar type screen.

Generally speaking, the larger the vibration amplitude of the vibrating screen is, the better the screening effect is, but the vibrating screen mostly realizes the vibration by connecting the motor with the polarizing block, when the vibration amplitude needs to be improved, the weight or the position of the polarizing block needs to be adjusted, so that the polarizing block can generate a larger moment, but the load on the motor is increased, and the service life of the motor or a motor bearing is shortened.

In addition, because the hardness of the screened materials is high, the screen is easy to wear, and the screen can be reused only by maintenance and replacement after being worn. Among the prior art, the welding of sieve stick is on the cross arm, and the cross arm is inconvenient to be dismantled with the curb plate fixed connection of shale shaker, when wearing and tearing appear in part, needs to change whole screen cloth, has increased manufacturing cost.

SUMMERY OF THE UTILITY MODEL

Not enough to the above-mentioned of prior art, the utility model provides a big amplitude cantilever screen cloth and shale shaker can improve the vibration range of screen cloth.

The utility model provides a scheme as follows:

the utility model provides a large-amplitude cantilever screen, includes cross arm, sieve stick and two curb plates, the cross arm sets up between the curb plate, distributes along curb plate length direction be equipped with a plurality of sieve sticks on the cross arm length direction, set up the main spring unit that shakes between the curb plate, the cross arm is connected with the main spring unit that shakes. The screen rod is connected with the side plate through the main vibration spring assembly, and is different from the traditional rigid connection, so that extra relative movement is generated between the screen rod and the side plate, and the integral amplitude is increased.

Preferably, the main vibration spring assembly comprises an inner seat and an outer seat, the inner seat is connected with the side plate, the outer seat is connected with the cross arm, the outer seat is sleeved on the outer side of the inner seat, and an elastic layer is arranged between the inner seat and the outer seat. Relative motion between outer seat and the interior seat is for rotating, and the elastic layer setting can provide elastic restraint between the two, can not increase unnecessary device in the master spring subassembly outside again, can not exert an influence to the screening of material.

Preferably, the elastic layer is rubber or a plurality of uniformly distributed springs. The rubber or the spring is a simple elastic element, and is low in cost and easy to obtain.

Preferably, the cross sections of the inner seat and the outer seat are circular or polygonal. The round shape is convenient for processing; the polygon is convenient for the restriction between the outer seat and the inner seat, and the torsion transition is not easy.

Preferably, the main vibration spring assembly is provided with a plurality of cross arm fixing frames, and the cross arms are connected with the cross arm fixing frames. The cross arm fixing frame does not play a role in screening, but prolongs the working area of the screen rod, saves the manufacturing materials of the screen rod and lightens the whole weight of the screen.

Preferably, the screen also comprises vibration damping bars, and the vibration damping bars are arranged between the screen bars on different cross arms. The bar that shakes is carried out very big to the sieve stick that moves to the highest point and minimum, prevents that the sieve stick from pressing from both sides the material.

Preferably, the vibration damping rod is arranged in parallel with the cross arm, and two ends of the vibration damping rod are connected with the two side plates. Parallel arrangement ensures that the vibration damping rod can impact the whole sieve rod, and avoids different impact forces on two sides to cause transitional wear on one side.

Preferably, the main vibration spring assembly is detachably connected with the side plate. The detachable connection is convenient for independent replacement when the local sieve rod is damaged, and the maintenance and replacement cost is reduced.

A vibrating screen uses the large-amplitude cantilever screen.

The beneficial effects of the utility model reside in that:

1. the sieve bars are connected with the side plates through the main vibration spring assembly, and the amplitude of the sieve bars is increased in an elastic deformation mode;

2. the sieve stick can be dismantled with the curb plate and be connected, can change the repair alone when local sieve stick damages.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic cross-sectional view of a master spring assembly according to an embodiment;

FIG. 5 is a schematic cross-sectional view of a second embodiment of a primary vibration spring assembly;

FIG. 6 is a schematic cross-sectional view of an embodiment triple primary spring assembly;

FIG. 7 is a cross-sectional schematic view of an embodiment four primary vibration spring assembly;

in the figure, 1-side plate, 2-cross arm, 3-sieve bar, 4-vibration damping bar, 5-cross arm fixing frame, 6-main vibration spring assembly, 611, 621, 631, 641-outer seat, 612, 622, 632, 642-inner seat, 613, 623, 633, 643-elastic layer.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Example one

As shown in fig. 1 to 4, the present embodiment discloses a large-amplitude cantilever screen, which includes two side plates 1, and the side plates 1 are arranged in parallel left and right. A plurality of detachable main vibration spring assemblies 6 are arranged between the two side plates 1, and the main vibration spring assemblies 6 are distributed along the extending direction of the side plates 1 and are horizontally arranged. Is detachably connected with the side plate 1. The detachable connection mode comprises a conventional bolt connection mode, a clamping connection mode and the like. Be fixed with a plurality of cross arm mount 5 on the main spring assembly that shakes 6, install cross arm 2 on the

cross arm mount

5, 2 level settings of cross arm to be equipped with the sieve stick 3 of a plurality of parallels. Set up between the sieve stick 3 of different cross arms 2 and hinder vibration stick 4, hinder vibration stick 4 and main spring unit 6, cross arm 2 parallel arrangement that shakes, both ends and curb plate 1 fixed connection.

The main vibration spring assembly 6 comprises an outer seat 611, an inner seat 612 and an elastic layer 613, wherein the outer seat 611 is fixedly connected with the cross arm fixing frame 5 and is sleeved outside the inner seat 612, two ends of the inner seat 612 are detachably connected with the side plate 1, and the elastic layer 613 is arranged between the outer seat 611 and the inner seat 612. The outer seat 611 and the inner seat 612 are both circular in cross section, and the elastic layer 613 is rubber.

A vibrating screen uses the large-amplitude cantilever screen.

The utility model discloses the theory of operation as follows:

when the vibration source drove the vibration of curb plate 1, sieve stick 3 vibrated thereupon and sieves, because be equipped with main spring unit 6 that shakes between sieve stick 3 and the curb plate 1 to rigid connection, consequently still produced extra relative motion because elastic connection between sieve stick 3 and the curb plate 1, improved holistic amplitude.

Example two

As shown in fig. 5, in the present embodiment, the cross sections of the outer seat 621 and the inner seat 622 are both rectangular, and the elastic layer 623 is made of rubber. The other parts of this embodiment are substantially the same as those of the first embodiment.

EXAMPLE III

As shown in fig. 6, in the present embodiment, the outer seat 631 and the inner seat 632 are both circular in cross section, and the elastic layer 633 is a plurality of springs uniformly distributed. The other parts of this embodiment are substantially the same as those of the first embodiment.

Example four

As shown in fig. 7, in the present embodiment, the outer seat 641 and the inner seat 642 have rectangular cross-sections, and the elastic layer 643 is a plurality of uniformly distributed springs. The other parts of this embodiment are substantially the same as those of the first embodiment.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a big amplitude cantilever screen cloth, includes cross arm (2), sieve stick (3) and two curb plates (1), cross arm (2) set up between curb plate (1), distribute along curb plate (1) length direction be equipped with a plurality of sieve sticks (3), its characterized in that on cross arm (2) length direction: and a main vibration spring assembly (6) is arranged between the side plates (1), and the cross arm (2) is connected with the main vibration spring assembly (6).

2. The large amplitude cantilever screen of claim 1, wherein: the main vibration spring assembly (6) comprises an inner seat and an outer seat, the inner seat is connected with the side plate (1), the outer seat is connected with the cross arm (2), the outer seat is sleeved on the outer side of the inner seat, and an elastic layer is arranged between the inner seat and the outer seat.

3. The large amplitude cantilever screen of claim 2, wherein: the elastic layer is rubber or a plurality of uniformly distributed springs.

4. The large amplitude cantilever screen of claim 2, wherein: the cross sections of the inner seat and the outer seat are circular or polygonal.

5. The large amplitude cantilever screen of claim 1, wherein: the main vibration spring assembly is provided with a plurality of cross arm fixing frames (5), and the cross arms (2) are connected with the cross arm fixing frames (5).

6. The large amplitude cantilever screen of claim 1, wherein: the screen also comprises a vibration damping rod (4), wherein the vibration damping rod (4) is arranged between the screen rods (3) on different cross arms (2).

7. The large amplitude cantilever screen of claim 6, wherein: the vibration damping rod (4) is arranged in parallel with the cross arm (2), and two ends of the vibration damping rod (4) are connected with the two side plates (1).

8. The large amplitude cantilever screen of claim 1, wherein: the main vibration spring assembly (6) is detachably connected with the side plate (1).

9. A vibrating screen is characterized in that: a large amplitude cantilever screen according to any of claims 1 to 8 is used.