CN201841115U

CN201841115U - Novel vibration sieve

Info

Publication number: CN201841115U
Application number: CN2010206041337U
Authority: CN
Inventors: 王志兴; 张金光; 张大禹; 朱智刚; 付国亮; 庞江涛
Original assignee: NANYANG YALONG ROAD CONSTRUCTION MACHINERY CO Ltd
Current assignee: NANYANG YALONG ROAD CONSTRUCTION MACHINERY CO Ltd
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-05-25
Anticipated expiration: 2020-11-12

Abstract

The utility model discloses a novel vibration sieve, which is provided with a sieve net tensioning device and a vibration absorber, wherein the tensioning device consists of a plurality of tensioning units, each tensioning unit consists of a draw hook, a shaft seat, a screw rod, a spring, a press cover and a screw nut, the draw hook is tightly buckled and connected with a sieve net, the shaft seat is fixedly connected with the draw hook, the spring is tightly fastened on a fixing frame and is in a compression state through the connection of the screw rod, the press cover and the screw nut, the vibration absorber consists a fixed plate, a press block, a spring, a chute, a propping block and a vibration absorbing block, the press block is positioned in the chute and is screwed on the fixed plate through a screw bolt arranged on the press block, the press block tightly presses one end of the spring, the other end of the spring tight presses the propping block, and the propping block props and presses the vibration absorbing block. Compared with the prior art, the novel vibration sieve has a reasonable structure, the sieve net is always in the tensioning state, the work is stable, the service life is long, the vibration is controllable, and harm caused by adverse vibration is reduced or eliminated, so the vibration of the novel vibration sieve becomes regular and harmless, and the reliability is high.

Description

A kind of novel vibrating screen

Technical field

The utility model belongs to the technology that multiple hybrid solid particle media is sieved, and is specifically related to a kind of vibratory sieve with novel tensioning and vibration absorber.

Background technology

The capital equipment that at present multiple hybrid solid granular material is sieved is a vibratory sieve, the drag hook width of existing vibrating screen mesh tensioning apparatus is long, screen cloth discontinuity and stress point are very little, in process of production through being heated and the material impact, make the tensioning apparatus of screen cloth can not play certain effect, and the existing screen cloth that uses, because of existing silk screen not isometric, factors such as the stretcher strain of screen cloth is uncontrollable make vibratory sieve sieve breakage often occur, the brace summer fracture, the phenomenon of bolt looseness causes the vibratory sieve life cycle short, inefficiency, maintenance is frequent, cost increases.

The utility model content

For overcoming above-mentioned technological deficiency, the utility model purpose be to provide a kind of rational in infrastructure, the screen cloth tensile force strong, stable working, vibration is controlled, reliability is high novel vibrating screen.

For realizing above-mentioned utility model purpose, the technical solution of the utility model is: this novel vibrating screen has screen cloth tensioning apparatus and vibration absorber, it is characterized in that: described tensioning apparatus is made of a plurality of stretching units, described stretching unit is made of drag hook, axle bed, screw rod, spring, gland and nut, described drag hook links closely with screen cloth and is connected, axle bed is fixedlyed connected with drag hook, connects by screw rod, gland and nut to make spring be fastened on the fixed mount and be in compressive state; Described vibration absorber is made of fixed head, briquetting, spring, slideway, jacking block and damping block, briquetting is positioned at slideway, and briquetting screws on fixed head by the bolt on it, an end of briquetting holddown spring, the other end of spring compresses jacking block, jacking block roof pressure damping block.

Adopt the positive effect after the technique scheme to be: this novel vibrating screen has obtained very big improvement in the installation of tensioning apparatus, vibration absorber, screen cloth, aspect safeguarding.The tensioning apparatus of screen cloth is to be made of a plurality of stretching units, the drag hook of each stretching unit links closely with screen cloth and is connected, adopt high strength alloy steel to forge drag hook, intensity and bearing capacity all have significant improvement, have characteristics such as not yielding, high temperature resistant, wear-resistant, long service life, connect by high strength screw rod, gland and nut and to allow high-strength spring be fastened on the fixed mount and be in compressive state, effectively tensioning, fixed grit.No matter be zero load or the full production screen cloth tight configuration can keep theoretical design all the time the time in process of production, guarantee the service life of screen cloth.Moreover be heated in process of production and the percussion of material when producing elastic pulling force or elastic deformation when screen cloth, tensioning apparatus can produce corresponding reaction force, guarantee that screen cloth all is in a state than balance all the time, when screen cloth uses certain hour generation plastic deformation, under the elastic reaction of spring, still can keep good operate as normal between each parts, thereby further improve the service life of screen cloth.When screen cloth is changed, only need remove nut, unclamp bolt, promptly replaceable screen cloth makes installations, dismantles easyly rapidly, and maintenance is more prone to.The spring that in the vibration absorber of novel vibrating screen, compresses, make damping block press sieve nest by briquetting, jacking block, and increase vibration absorber at the diverse location of sieve nest, elastic acting force with a plurality of springs reduces or eliminates the formed harm of bad vibration, irregular and at random bad vibration becomes controls, can restriction, regularization, innoxious.Vibratory sieve in process of production or start, the vibration when shutting down is significantly improved, and effectively reduced breakdown rate, and equipment is run more secure, reliable.

Description of drawings

Below in conjunction with accompanying drawing concrete enforcement of the present utility model is described in further detail.

Fig. 1 is a screen cloth tensioning device structure schematic diagram of the present utility model.

Fig. 2 is a screen cloth stretching unit partial sectional view.

Fig. 3 is a damping device structure schematic diagram of the present utility model.

The specific embodiment

Novel vibrating screen shown in Fig. 1,3 has screen cloth tensioning apparatus and vibration absorber.Tensioning apparatus shown in Figure 1 is made of a plurality of stretching units, and described Fig. 2 stretching unit is made of drag hook 2, axle bed 3, screw rod 5, spring 6, gland 7 and nut 8.Drag hook 2 adopts high strength alloy steels to forge, and intensity and bearing capacity be compared with the past characteristics such as not yielding, high temperature resistant, wear-resistant, long service life.Described drag hook 2 links closely with screen cloth 1 and is connected, and axle bed 3 adopts welded structure with drag hook 2, can effectively reduce the screw rod wear phenomenon that occurs because of the work rotation.Make spring 6 on fixed mount 4, be in the compression tightening state by screw rod 5, gland 7 and nut 8 connections, make screen cloth in process of production, can keep theoretical tensioning state all the time, guaranteed the serviceability of screen cloth.The drag hook of each stretching unit can be regulated easily according to screen cloth tensioning situation as shown in Figure 1, and the assurance screen cloth is evenly strained, and has guaranteed the best serviceability of screen cloth.Aborning, when screen cloth 1 was subjected to the percussion of material to produce strain, the spring 6 of tensioning apparatus produced corresponding active force, guarantees that screen cloth 1 all is in a best tensioning state than balance all the time; When screen cloth uses certain hour later on plastic deformation to take place, under the effect of spring 6, still can keep good tightening state between each parts, further prolonged the service life of screen cloth.

Vibration absorber as shown in Figure 3, briquetting 10, spring 11, jacking block 13 and damping block 14 are positioned at sleeve 12, one end of briquetting 10 holddown springs 11, its other end connects jacking block 13, and jacking block 13 presses sieve nest 15 by damping 14 under the pressure effect of spring 11 and adjusting bolt 9.In the equipment course of work, because the irregular oscillation meeting of vibrator causes very big damage to vibratory sieve, particularly when motor counter-rotating braking, the resonance between sieve nest and the associated devices is very harmful.Diverse location at sieve nest 15 increases this vibration absorber, eliminates such bad vibration with a plurality of damping blocks 14, make that bad vibration becomes control, can limit, innoxious, reduced breakdown rate effectively, equipment is run more secure, reliable.

Claims

1. novel vibrating screen, have screen cloth tensioning apparatus and vibration absorber, it is characterized in that: described tensioning apparatus is made of a plurality of stretching units, described stretching unit is made of drag hook, axle bed, screw rod, spring, gland and nut, described drag hook links closely with screen cloth and is connected, axle bed is fixedlyed connected with drag hook, connects by screw rod, gland and nut to make spring be fastened on the fixed mount and be in compressive state; Described vibration absorber is made of fixed head, briquetting, spring, slideway, jacking block and damping block, briquetting is positioned at slideway, and briquetting screws on fixed head by the bolt on it, an end of briquetting holddown spring, the other end of spring compresses jacking block, jacking block roof pressure damping block.