CN100998978A

CN100998978A - Anti-blocking wear resistance cantilever screen

Info

Publication number: CN100998978A
Application number: CN 200610042171
Authority: CN
Inventors: 常莲英
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-09
Filing date: 2006-01-09
Publication date: 2007-07-18

Abstract

An antiwear cantilever sieve without blocking features that its sieving strips with an antiwear alloy or ceramic layer on their surface is divided into alternatively arranged two groups, one group is fixed to a fixed transverse beam and another group is fixed to a movable one, resulting in different vibration amplitudes and phase angles. Another scheme using beating rings is also disclosed.

Description

Anti-blocking wear resistance cantilever screen

Technical field

The invention belongs to vibratory sieve used Cantilevered screen, particularly anti-blocking wear resistance cantilever screen.

Background technology

In existing Cantilevered screen anti-clogging technology, technique known is to adopt at grating bottom welding reinforcement, strike pipe below the grating hits vibration by reinforcement to grating and prevents to stop up, in this manner, the welding of grating and grating muscle is difficulty relatively, and easily make grating distortion even embrittlement, influence screening precision and screen cloth service life.

Improve in the grating anti-wear performance technology at existing Cantilevered screen, technique known is suit abrasive rubber, a wear-resistant ceramic on the grating muscle, these two kinds of methods have greatly increased the diameter of grating, have reduced the percent opening of screen cloth, and can not adopt the mode of strike to prevent and clear up obstruction.

The objective of the invention is in order to overcome the deficiency of above-mentioned cantilevered screen cloth on anti-clogging and abrasion-proof structure, and a kind of novelty is provided, can remove obstruction automatically, and when improving the grating anti-wear performance, do not reduce the anti-blocking wear resistance cantilever screen of percent opening.

The technical solution adopted for the present invention to solve the technical problems is: aspect the obstruction of prevention and removing Cantilevered screen, and the one, the grating on the Cantilevered screen is divided into two groups at interval, one group is fixedly mounted on the fixed cross beam, and another group then is fixed on the movable crossbeam.When screen cloth was worked, the amplitude of the grating vibration on the moved cross beam was different with the grating on the fixed cross beam with the phase angle, produces the shearing motion on the grating plane between adjacent grating.The 2nd, the pipe under the grating is installed one section at a distance of a segment distance hit ring, hit ring and can not hit adjacent grating simultaneously, but hit grating at interval, and, can also remove interstitial material when hitting when ring moves the space that is between two gratings at random, play double prevention block clearing effect.These two kinds of schemes change the adjacent grating of screen cloth up and down, and material is difficult to be blocked on the screen cloth.In order when improving the grating anti-wear performance, not reduce percent opening, adopt HVAS on grating, to spray one deck high-wear-resistant alloy or ceramic layer as thin as a wafer, adopt this kind structure can save the use amount of precious metal and pottery, and can adopt the mode of strike to come pre-anti-clogging.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the anti-clogging Cantilevered screen first example structure schematic diagram.

Fig. 2 is the anti-clogging Cantilevered screen second example structure schematic diagram.

Fig. 3 is anti-clogging Cantilevered screen the 3rd an example structure schematic diagram.

Fig. 4 is anti-clogging Cantilevered screen the 4th an example structure schematic diagram.

Fig. 5 is anti-clogging Cantilevered screen the 5th an example structure schematic diagram.

Fig. 6 is anti-clogging Cantilevered screen the 6th an example structure schematic diagram.

Fig. 7 is anti-clogging Cantilevered screen the 7th an example structure schematic diagram.

The specific embodiment

In Fig. 1, two groups of

activity gratings

1 and 7 are separately fixed on moved

cross beam

3 and 9, two groups of moved cross beams 3 are fixedlyed connected by connecting rod 6 with 9, two groups fixedly grating 2 and 8 be separately fixed on

fixed cross beam

5 and 12,

axle

4 and 10,

fixed cross beam

5 and 12 is fixed on the screen frame 13, and two groups of

moved cross beams

3 and 9 can be respectively around

axle

4 and 10 motions.Because the connection effect of connecting rod 6, two groups of moved

cross beams

3 and 9 can not rotate, and have therefore kept the direction of movable grating constant.

When screen frame 13 vibrations, two groups fixedly grating 2 and 8 with screen frame 13 vibration, then fixedly grating 2 and 8 amplitude and phase angle produce secondary vibration to two groups of

activity gratings

1 and 7 to be different from two groups with two groups of moved

cross beams

3 and 9, make two groups of

activity gratings

1 and 7 and two groups of fixedly generation front and back, variations up and down between the

grating

2 and 8, therefore prevented the obstruction of material on screen cloth.On the

axle

4 and 10 big small stair is arranged, moved

cross beam

3 and 9 moves on its big step during normal the operation, moved

cross beam

3 and 9 is with less amplitude motion, can pre-anti-clogging, when screen cloth has had obstruction, when needing cleaning, extract the part of axle, moved

cross beam

3 and 9 is moved on the small stair on

axle

4 and 10, and moved

cross beam

3 and 9 obtains bigger amplitude, automatically the screen cloth of

cleaning obstruction.Axle

4 and 10 can be independent, also can be connected by handle 6.

Moved cross beam can be the circle among Fig. 1, also can be the rectangle among Fig. 2.In Fig. 2, rectangle moved cross beam 14 is enclosed within on the rectangular shaped slider 15, and rectangle moved cross beam 14 can only move up and down, and an independent rectangle moved cross beam is the direction of energy maintenance activity grating just, thereby does not need the connection of adjacent two crossbeams.The adjacent rectangle slide block can be independent, and also available handle connects.

Movable grating

1 and 7 can be that the end among Fig. 1 is connected with 9 with moved cross beam 3, also can be that the movable grating 1 among Fig. 3 is connected with 9 with moved cross beam 3 with other positions of 7.

Movable grating can be to be connected with a moved cross beam among Fig. 1, also can be that the movable grating 7 among Fig. 4 is connected with 16 with two moved cross beams 9, and two moved cross beams can keep the directionality of grating.

In Fig. 5, be spaced a distance on the pipe 18 to be fixed with and hit ring 19, hit ring 19 and respectively hit grating, make alternate grating produce the vibration at various amplitude and phase angle, thereby prevented the obstruction of material on screen cloth.Pipe 18 moves on axle 17 at random, when strike ring 19 is between two gratings, also material is cleared up.

In Fig. 6, material contact portion wholecircle perimeter surface adopts HVAS to be sprayed last layer sprayed coating 20 as thin as a wafer on the grating 1, and the material of this sprayed coating 20 is high-wear-resistant alloy or wear-resistant ceramic.

In Fig. 7, material contact portion semi-circumference surface adopts HVAS to be sprayed last layer sprayed coating 21 as thin as a wafer on the grating 1, and the material of this sprayed coating 21 is high-wear-resistant alloy or wear-resistant ceramic.

Claims

1. anti-clogging Cantilevered screen, mainly by screen frame, crossbeam, axle hits ring, and grating is formed, it is characterized in that: crossbeam is divided into fixed cross beam and moved cross beam, and fixed cross beam is installed on the screen frame, and moved cross beam is enclosed within on the axle that is fixed on the screen frame, grating is divided into two groups at interval, one group is fixing grating, is installed on the fixed cross beam, and another group is movable grating, be installed on the moved cross beam, two adjacent moved cross beams are fixedly connected by connecting rod.

2. anti-clogging Cantilevered screen according to claim 1 is characterized in that: above-mentioned moved cross beam cross section can be circular, also can be rectangle or other geometric figures.

3. anti-clogging Cantilevered screen according to claim 1 is characterized in that: there is big small stair above-mentioned axle longitudinal section, and cross section can be circular, also can be rectangular shaped slider, and adjacent axle or slide block can be linked into an integrated entity by handle.

4. anti-clogging Cantilevered screen according to claim 1 is characterized in that: the end that above-mentioned movable grating can be movable grating is connected with moved cross beam, also can be that other positions of movable grating are connected with moved cross beam.

5. anti-clogging Cantilevered screen according to claim 1 is characterized in that: above-mentioned movable grating can be that a grating connects a moved cross beam, also can be that a grating connects two moved cross beams.

6. anti-clogging Cantilevered screen according to claim 1 is characterized in that: above-mentioned crossbeam can all be a fixed cross beam also, and all an end of grating is fixed on the crossbeam, and the ring of strike is arranged under the grating.

7. anti-clogging Cantilevered screen according to claim 1 is characterized in that: said fixing crossbeam and moved cross beam can be one group, two groups or many groups.

8. anti-clogging Cantilevered screen according to claim 1, it is characterized in that: above-mentioned grating can be common iron, high abrasion steel, also can be at common iron or high abrasion steel surface spraying one deck high-wear-resistant alloy or wear-resistant ceramic, this sprayed coating can be that wholecircle at steel is on week, also on the semi-circumference of steel.