CN201267803Y

CN201267803Y - Bar screen

Info

Publication number: CN201267803Y
Application number: CNU2008201531987U
Authority: CN
Inventors: 唐国荣; 卢江海; 杜洪缙; 蒋月明
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2008-09-18
Filing date: 2008-09-18
Publication date: 2009-07-08
Anticipated expiration: 2018-09-18

Abstract

The utility model discloses a bar screen, which comprises a screen frame, beam mounts and a plurality of screen bars; wherein, the beam mounts and the screen bars are arranged in the screen frame; the screen bars are equidistantly arranged in parallel; one end of each screen bar is inserted in the beam mount and movably connected with the beam mount; and an adjusting part which is used to adjust the space between the screen bars is also erected on the screen bars. Through screwing adjusting nuts, movable rods can move and through utilizing circular arc-shaped notches to drive the screen bars to rotate and move, so that the space between the screen bars can be conveniently and quickly adjusted. The bar screen can be used to screen materials with various granularities, thus greatly increasing the working efficiency. If the screen bars are worn out to cause screen cuts to become larger, the space between the screen bars can be lessened with the same method, consequently, the service life of the screen bars is prolonged, and the economic benefit is increased.

Description

A kind of bar screen

Technical field

The utility model relates to screen cloth, more particularly, relates to a kind of bar screen, and this bar screen can be adjusted the spacing between its sieve rod.

Background technology

The kind type of screen cloth has a lot, and bar screen is wherein comparatively common a kind of.Because bar screen has manufacturing process simply and screening efficiency is higher, thereby is used in a large number.See also Fig. 1, shown in Figure 2, the radial section of the sieve rod 11 of traditional bar screen 10 is circular, equidistantly arrange by fixing between the sieve rod 11, and an end all is fixed on the roof beam structure 12, by sieve seam (i.e. space between the sieve rod 11) material sieved.But, when the production technology demand changes, the grade frequent variations of on-the-sieve material, perhaps sieve rod 11 take place wearing and tearing cause that diameter diminishes, when spacing becomes big, must in time change the spacing between the sieve rod 11, yet the sieve of traditional bar screen 10 rod 11 and roof beam structure 12 disposable welding can't be adjusted spacing at all, thereby cause bar screen 10 normally to sieve accurately.

See also shown in Figure 3, application number is that 200620068755.6 Chinese patent discloses a kind of bar screen 20, the face of overlooking of each sieve rod 21 of this bar screen all is the trapezoidal shape structure, and making sieve seam between the sieve rod 21 all become big from top to bottom gradually (is the L1＜L2) among Fig. 3.This bar screen 20 can prevent that material from being blocked, and is convenient to screening.Thereby play the effect of stopping up of preventing.But because sieve rod 21 and roof beam structure 22 also for being fixedly connected with, still can't carry out the spacing adjustment, therefore, in case the material grade changes or sieves rod 21 generations when wearing and tearing, still can't normally sieve accurately.

At present, can only prepare equidistantly and the how secondary bar screen of unequal-interval, at any time be used for integral replacing.Because the replacement frequency height is so that labour intensity is big and efficient is low, and bar screen be in case wearing and tearing just must be changed, and service life is on the low side, causes serious waste.

The utility model content

At exist in the prior art above-mentioned can't adjust the sieve interrod spacing, with the material grade change changes frequently and service life low shortcoming, the purpose of this utility model provides a kind of bar screen, this bar screen can be adjusted its sieve interrod spacing, not only be suitable for the material screening of various grades, also improve its service life.

For achieving the above object, the utility model adopts following technical scheme:

This bar screen comprises screen frame, is located at roof beam structure and sieve rod in the screen frame, and several sieve rods equidistantly are set up in parallel, and the excellent end of described sieve penetrates roof beam structure, and is flexibly connected with roof beam structure; Also set up one on the described sieve rod and be used for adjusting the adjustment component of sieving interrod spacing.

Described adjustment component comprises the carriage release lever of being located in the roof beam structure, and the bottom of carriage release lever has several circular arc type grooves, and is set up in respectively on the corresponding sieve rod by groove.

Described carriage release lever two ends are connected with respectively screw rod, and screw rod passes screen frame, and are connected with screen frame by at the screw rod traversing through end adjusting nut being set.

The radial section of described sieve rod all is ellipse.

Described roof beam structure both sides have several mounting grooves side by side, and described sieve rod one end passes respectively corresponding mounting groove; The roof beam structure both sides also are fixed with respectively be used to preventing from sieving the strip of paper used for sealing that rod becomes flexible up and down.

In technique scheme, bar screen of the present utility model comprises screen frame, is located at roof beam structure and sieve rod in the screen frame, and several sieve rods equidistantly are set up in parallel, and sieve an excellent end and penetrate roof beam structure, and be flexibly connected with roof beam structure; Also set up one on the sieve rod and be used for adjusting the adjustment component of sieving interrod spacing.Thereby this bar screen moves carriage release lever by turning adjusting nut, and drive the sieve rod by the circular arc type groove and be rotated movement, thereby easily and fast sieve the interrod spacing adjustment, be applicable to the material screening of various grades, greatly improved operating efficiency; If when sieve rod generation wearing and tearing cause the sieve seam to become big, will sieve interrod spacing by same method and turn down, thereby prolong the service life of sieving rod, increase economic benefit.

Description of drawings

Fig. 1 is the structure vertical view of a kind of bar screen of prior art;

Fig. 2 is the structural representation of sieve rod shown in Figure 1;

Fig. 3 is the structure vertical view of the alternative bar screen of prior art;

Fig. 4 is the structure vertical view of bar screen of the present utility model;

Fig. 5 is the cutaway view along A-A line among Fig. 4;

Fig. 6 is the partial structurtes schematic diagram of the adjustment component of bar screen of the present utility model;

Fig. 7, Fig. 8 are respectively the original state of sieve rod of the present utility model and the cutaway view of the state of adjustment.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

See also Fig. 4～shown in Figure 6, bar screen 30 of the present utility model comprises screen frame 33, is located at roof beam structure 32 and sieve rod 31 in the screen frame 33, need to prove at this, the quantity of roof beam structure 32 can be one, two or more with the size of screen cloth, roof beam structure 32 quantity among Fig. 4, Fig. 5 namely are shown side by side two, each roof beam structure 32 all is connected with several sieve rods 31, below take one of them roof beam structure 32 as example: several identical sieve rods 31 equidistantly are set up in parallel, the radial section of sieve rod 31 all is ellipse, sieve rod 31 1 ends penetrate roof beam structure 32, and are flexibly connected with roof beam structure 32; This roof beam structure 32 can select channel-section steel to make, and offers respectively and sieve rod 31 corresponding several mounting grooves 321 in the both sides of

roof beam structure

32, and 32 liang of side lower parts of roof beam structure also respectively welding be provided with a strip of paper used for sealing 322, strip of paper used for sealing 322 consists of the perforation of fixing with mounting groove 321 respectively; And sieve rod 31 1 ends namely penetrate in the perforation of mounting groove 321 and strip of paper used for sealing 322 formation, and be held on the strip of paper used for sealing 322, be defined in this perforation thereby will sieve rod 31, it is loosening up and down to prevent that sieve rod 31 from taking place, and sieve rod 31 can be rotated freely in the perforation of roof beam structure 32.On several sieve rods 31, also set up one and be used for adjusting the adjustment component of sieving excellent 31 spacings, this adjustment component comprises the carriage release lever 34 of being located in the roof beam structure 32, the bottom of carriage release lever 34 has several circular arc type grooves 341, and be set up in respectively on the corresponding sieve rod 31 by groove 341, carriage release lever 34 two ends also are connected with respectively screw rod 342, two screw rods 342 passes respectively the screen frame 33 of both sides, and is connected with screen frame 33 by at screw rod 342 traversing through end adjusting nut 343 being set; When turning adjusting nut 343, carriage release lever 34 is axially moved along roof beam structure 32, and mobile carriage release lever 34 drives all corresponding recesses that sieves excellent 31 edges 341 tracks and is rotated movement by the circular arc type groove 341 of its lower end, thereby can change the distance between the sieve rod 31.

Please in conjunction with Fig. 7, shown in Figure 8, Fig. 7 be the sieve rod 31 of this bar screen 30 at the cutaway view of original state, sieve rod 31 spacings when L3 is original state; When the material grade of needs screening changes, only need to adjust by 343 pairs of excellent 31 spacings of sieve of adjusting nut, dotted arrow is the adjustment moving direction of carriage release lever 34 among Fig. 8, and L4 is sieve rod 31 minimum spacings of adjustment state.Equally, if wearing and tearing take place sieve rod 31 when causing the sieve seam to become big, also only need sieve excellent 31 spacing and turn down and get final product by adjusting nut 343.

After adopting bar screen 30 of the present utility model, no longer need to purchase how secondary bar screen 30 and be used for integral replacing, only needing rotation to adjust nut 343 just can easily adjust fast, not only satisfied the screening of various grade materials, and reduced labour intensity, and improved operating efficiency, also prolonged the service life of bar screen 30, increased economic benefit, effect is very remarkable.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims

1. bar screen, this bar screen comprise screen frame, are located at roof beam structure and sieve rod in the screen frame, and several sieve rods equidistantly are set up in parallel, and it is characterized in that:

The excellent end of described sieve penetrates roof beam structure, and flexibly connects with roof beam structure; Also set up one on the described sieve rod and be used to adjust the adjustment component of sieving interrod spacing.

2. bar screen as claimed in claim 1 is characterized in that:

3. bar screen as claimed in claim 2 is characterized in that:

4. bar screen as claimed in claim 1 is characterized in that:

The radial section of described sieve rod all is ellipse.

5. bar screen as claimed in claim 1 is characterized in that: