CN201997459U

CN201997459U - Pattern tooth dial wheel roll shaft screen

Info

Publication number: CN201997459U
Application number: CN2011200364334U
Authority: CN
Inventors: 魏静
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-11
Filing date: 2011-02-11
Publication date: 2011-10-05
Anticipated expiration: 2021-02-11

Abstract

The utility model discloses a pattern tooth dial wheel roll shaft screen, which comprises a screen body and a plurality of roll shafts for forming the screen surface of the screen body, wherein the roll shafts are parallel to one another, a set distance is kept between the roll shafts, and a plurality of pattern tooth dial wheels are continuously sleeved on the roll shafts. The pattern tooth dial wheel roll shaft screen is characterized in that: the center of the pattern tooth dial wheel is provided with a shaft hole, a shaft shoulder is arranged on single side or double sides, and three or more than three teeth are arranged on the periphery of the pattern tooth dial wheel; and the two pattern tooth dial wheels corresponding to the shaft position of the adjacent roll shafts are engaged and kept in a set distance. The pattern tooth dial wheel roll shaft screen generates relatively high vibration frequency, has good screening effect, and can effectively improve the screening efficiency.

Description

Flower tooth thumb wheel live-roll grizzly

Technical field

The utility model relates to a kind of colliery, coal preparation plant, power plant is used for the screening plant that raw coal sieves, and is a kind of colored tooth thumb wheel live-roll grizzly specifically.

Background technology

Process systems such as colliery, coal preparation plant, power plant according to designing requirement, need raw coal is sieved by different lumpiness grades, to satisfy the demand of different clients to readymade coal.Usually the screening plant that adopts has vibratory sieve, as probability screen, uniform thickness sieve etc., has also occurred more novel screening plants such as live-roll grizzly, thumb wheel sieve in recent years.

Chinese invention patent " compounded sine screen " (publication number CN1201722A) discloses the identical live-roll grizzly of a kind of structure respectively with Chinese utility model patent " compounded sine screen " (Granted publication CN201279502Y).It is made up of frame, feed hopper, discharge bucket, sieve nest, sieve axle (roll shaft), reducing motor etc.On the sieve nest sieve axle cam roller is installed, oval roller is installed on the cam roller, evenly distributed oval tooth on the oval roller, interlaced arrangement at the bottom of the tooth top of adjacent two oval rollers and the tooth.Rotate the sine wave disturbance that is produced with oval tooth, the material on the sieve nest is played pine, dispersion, material is sieved material by the gap that forms between the ellipse tooth.Advantage such as this equipment has that friction, noise are low, energy-conserving and environment-protective, maintenance capacity are little.But also have simultaneously following shortcoming: because the vibration frequency lower (2 ripple/commentaries on classics) that the oval roller (oval roller) that adopts produces, vibrate softlyer relatively, screening effect is still undesirable.

The utility model content

Technical problem to be solved in the utility model is to overcome the defective that prior art exists, and has proposed a kind of colored tooth thumb wheel live-roll grizzly, and the vibration frequency of its generation is higher relatively, and screening effect is good.

The utility model for realizing the technical scheme that goal of the invention adopted is: a kind of colored tooth thumb wheel live-roll grizzly, the some roll shafts that comprise sieve nest and formation sieve nest compass screen surface, each roll shaft is parallel to each other, and keeps the spacing of setting between each roll shaft, all continuous some colored tooth thumb wheels of suit of described each roll shaft; It is characterized in that: described colored tooth thumb wheel center is axis hole (being provided with keyway), and one-sided or bilateral is established the shaft shoulder, spends tooth thumb wheel periphery to divide equally three teeth or three above teeth are set; Two colored tooth thumb wheels of adjacent roller between centers position correspondence are provided with for engagement, and keep the spacing of setting.

The operation principle of flower tooth thumb wheel live-roll grizzly is: drive drive gear set by drive unit and rotate, each roll shaft of gear set drive is rotation synchronously in the same way, rotate the fluctuation up and down that realizes material by flower tooth thumb wheel, thereby with material loosening, push ahead, make material realize effectively sieving by the square space (sieve aperture) that surrounds by adjacent roll shaft and corresponding four colored tooth thumb wheels.

Because what the utility model adopted is multiple tooth colored tooth pattern, the vibration frequency of generation obviously improves, stirs and speed up during equipment work, thereby has effectively improved the screening effect and the efficient of sieve.

Description of drawings

Fig. 1 is the utility model flower tooth thumb wheel live-roll grizzly compass screen surface roll shaft structural representation;

Fig. 2 is Figure 1A-A generalized section;

Fig. 3 is flower tooth thumb wheel (three teeth) schematic perspective view;

Fig. 4 is flower tooth thumb wheel (three teeth) front schematic view;

Fig. 5 is flower tooth thumb wheel (four teeth) front schematic view;

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.

Embodiment 1: a kind of colored tooth thumb wheel live-roll grizzly, comprise sieve nest 1 and the some roll shafts 2 that constitute the sieve nest compass screen surface, and as shown in Figure 1, each roll shaft is parallel to each other, and keeps the spacing of setting between each roll shaft, all continuous some colored tooth thumb wheels 3 of suit of described each roll shaft; Shown in Fig. 2,3,4,5, described colored tooth thumb wheel center is axis hole 4 (being provided with keyway 5), and one-sided or bilateral is established the shaft shoulder 6, spends tooth thumb wheel periphery to divide equally three teeth or four teeth 7 are set; Two colored tooth thumb wheels of adjacent roller between centers position correspondence are provided with for engagement, and keep the spacing of setting.

Driving drive gear set by drive unit rotates, each roll shaft of gear set drive is rotation synchronously in the same way, rotate the fluctuation up and down that realizes material by flower tooth thumb wheel, thereby with material loosening, push ahead, make material realize effectively screening by the square space (sieve aperture) that surrounds by adjacent roll shaft and coaxial adjacent colored between cog.

Claims

1. a colored tooth thumb wheel live-roll grizzly comprises sieve nest and the some roll shafts that constitute the sieve nest compass screen surface, and each roll shaft is parallel to each other, and keeps the spacing of setting between each roll shaft, all continuous some colored tooth thumb wheels of suit of described each roll shaft; It is characterized in that: described colored tooth thumb wheel center is an axis hole, and one-sided or bilateral is established the shaft shoulder, spends tooth thumb wheel periphery to divide equally three teeth or three above teeth are set; Two colored tooth thumb wheels of adjacent roller between centers position correspondence are provided with for engagement, and keep the spacing of setting.