CN201711172U

CN201711172U - Double roll crusher with underlying working set

Info

Publication number: CN201711172U
Application number: CN2009201787894U
Authority: CN
Inventors: 周明义; 李波
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-14
Filing date: 2009-10-14
Publication date: 2011-01-19
Anticipated expiration: 2019-10-14

Abstract

A double roll crusher with an underlying working set mainly comprises a main frame, a high-speed roll, a low-speed roll, an underlying working set, a bearing beam, power drive devices and other structures, wherein the high-speed roll and the low-speed roll are mounted on the main frame, and the underlying working set is arranged right below the high-speed roll and the low-speed roll and fixed on the main frame through the bearing beam. The underlying working set takes the shape of a polygon, a narrow plane surface is arranged at the top, concave arc grooves are formed on the two sides, and when the high-speed roll and the low-speed roll rotate oppositely, spiral teeth of the double rolls are meshed with the concave arc grooves of the underlying working set. The utility model changes the phenomenon of needle-shaped broken material particles, enlarges the breaking ratio by about 60 percent, radically solves sticky blocking caused by the adoption of materials, and prolongs the service life of easily-damaged pieces.

Description

A kind of double-geared roller crusher of underlying operative minor

Technical field

The utility model relates to a kind of double-geared roller crusher that is used for brittle materials such as coal, gangue are carried out fragmentation, particularly a kind of double-geared roller crusher of underlying operative minor.

Background technology

Double-geared roller crusher on the existing market, its operation principle be two discaling rolls relative to or when rotating on the contrary, when material falls into crusher chamber from the mainframe charging aperture, material less than the roller inter-lobe clearance passes through fast, directly discharge by discharging opening, the material that exceeds standard with the double teeth roller that is rotated split, folding, attrition crushing behind desired particle size, discharge outside the body by discharging opening.The shortcomings and deficiencies of this big class double-roll crusher are: material is only limit same direction, position fragmentation in shattering process, and the pin strip of nearly 30%-40% is arranged in the material particles after the fragmentation, thus the requirement that does not reach required discharging granularity.After the wearing and tearing of disintegrating machine tooth plate, adopt usually and change consumable accessory or adjust spacing between discaling roll, strengthened production cost or be prone to not parallel, unsettled phenomenon in service, cause accident to take place.When meeting the strong material of viscosity such as mud coal, brown coal, all can take place sticking stifledly on the double teeth roller, disintegrating machine can't operate as normal, directly influences operation output.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming and defect part of above-mentioned prior art, a kind of this phenomenon that the pin strip is arranged in the broken material particle that both can change is provided, reach the requirement of required crushed particles degree, can increase the double-geared roller crusher of a kind of underlying operative minor of the ratio of reduction again.The purpose of this utility model also is further to provide a kind of double teeth roller to be cleaned automatically, thoroughly solve material reasons such as mud coal, brown coal produce sticking stifled cause can't normal operation, prolong the double-geared roller crusher of a kind of underlying operative minor in disintegrating machine consumable accessory life-span simultaneously.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of double-geared roller crusher of underlying operative minor mainly is made up of mainframe (1), high speed discaling roll (2), low speed discaling roll (3), underlying operative minor (4), backbar (5), actuating unit structures such as (6).High speed discaling roll (2) is installed on the mainframe (1) with low speed discaling roll (3) symmetrical parallel, under high speed discaling roll (2) and the low speed discaling roll (3) a underlying operative minor (4) is set, and underlying operative minor (4) is fixed on the mainframe (1) by backbar (5).Underlying operative minor (4) is symmetrical polygonal body, one narrow plane (7) is arranged at its top, both sides are provided with the concave arc groove (8) of symmetry, and when two discaling rolls relatively rotated, the crushing teeth of helix shape just in time was meshed with the concave arc groove (8) on underlying operative minor (4) both sides on the double teeth roller.

Operation principle of the present utility model is: when the coal of fragmentation, brittle materials such as gangue fall into crusher chamber from the mainframe charging aperture, directly fall on the underlying operative minor narrow plane less than the material of two gap of tooth roller, the material that exceeds standard is split brokenly the discaling roll that is rotated, be expressed to less than gap between discaling roll and drop on the underlying operative minor narrow plane, all break the material that falls within on the underlying operative minor narrow plane through just, the crushing teeth of helix shape drives and changes position and falling direction and enters in the concave arc groove that underlying operative minor both sides are provided with and carry out second-time breakage on the double teeth roller that continues to be rotated, when reaching required crushed particles and spending, discharge outside the body by discharging opening.

The utility model advantage compared with prior art is: a kind of double-geared roller crusher of underlying operative minor, mainly form by structures such as mainframe, high speed discaling roll, low speed discaling roll, underlying operative minor, backbar, actuating units.Being installed on the mainframe of high speed discaling roll and low speed discaling roll symmetrical parallel is provided with a underlying operative minor under high speed discaling roll and the low speed discaling roll, the underlying operative minor is fixed on the mainframe with backbar.Wherein underlying operative minor is symmetrical gengon, one narrow plane is arranged at the top, both sides are provided with the concave arc groove of symmetry, and when high speed discaling roll and low speed discaling roll relatively rotated, the crushing teeth of helix shape just in time can be meshed with the concave arc groove that underlying operative minor both sides are provided with in rotation on the double teeth roller.Material is in shattering process, the discaling roll that directly falls or be rotated splits brokenly, it is just broken to less than falling within all on the underlying operative minor narrow plane during gap between discaling roll to push, the crushing teeth of helix shape drive to change the position of material and falling direction and enters in the concave arc groove that underlying operative minor both sides are provided with and carry out second-time breakage on the double teeth roller that continues to be rotated, after material behind the change position passes through second-time breakage again, thoroughly eliminated the pin strip in the former particle, reached required granularity and require to be discharged from.This underlying operative minor that under high speed discaling roll and low speed discaling roll, is provided with, greatly increased the ratio of reduction of material, the ratio of reduction of ratio double-geared roller crusher has under normal conditions directly improved 60%, has really played the function of implementing the secondary work pair with the one-level operative minor.Secondly the advantage of this set has changed after the tooth plate wearing and tearing of double-geared roller crusher, can directly after increasing backing plate between backbar and the mainframe support plate, fixedly adjust again, avoided adopting existing conventional method to adjust the spacing between double teeth roller and cause its double teeth roller not parallel, move left and right, influence the disintegrating machine normal operation, incident meets accident.In addition, because the underlying operative minor is fixed on the body with backbar, be to remain static, when sticking mud coal, brown coal material on high speed discaling roll and the low speed discaling roll, in turning to the concave arc groove that underlying operative minor both sides are provided with, just clean automatically, sticking stifled phenomenon can not take place, thereby guaranteed the operate as normal of disintegrating machine.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a kind of double-geared roller crusher structural representation of underlying operative minor

Fig. 2 is the structural representation of underlying operative minor

With reference to shown in Figure 1: a kind of double-geared roller crusher of underlying operative minor mainly is made up of mainframe (1), high speed discaling roll (2), low speed discaling roll (3), underlying operative minor (4), backbar (5), actuating unit structures such as (6).Its high speed discaling roll (2) is installed on the mainframe (1) with low speed discaling roll (3) symmetrical parallel, under high speed discaling roll (2) and the low speed discaling roll (3) a underlying operative minor (4) is set, underlying operative minor (4) is fixed on the mainframe (1) with backbar (5).

Shown in Figure 2: underlying operative minor (4) is symmetrical polygonal body, one narrow plane (7) is arranged at its top, both sides are provided with the concave arc groove (8) of symmetry, and when two discaling rolls relatively rotated, the crushing teeth of helix shape just in time was meshed with the concave arc groove (8) on underlying operative minor (4) both sides on the double teeth roller.

The specific embodiment

Coal when fragmentation, brittle materials such as gangue fall into crusher chamber from the charging aperture of the double-geared roller crusher of underlying operative minor, to directly fall on the underlying operative minor narrow plane less than the material of two gap of tooth roller, the material that exceeds standard will drop on the underlying operative minor narrow plane when double teeth roller is split brokenly or be expressed to less than two clearance between rolls in relative rotation, all break the material that falls within on the underlying operative minor narrow plane through just, the crushing teeth of helix shape drives and changes in the concave arc groove that the original position of material and falling direction enter underlying operative minor both sides and carries out second-time breakage on the double teeth roller that continues to be rotated, when reaching needed granularity, discharge outside the body by discharging opening.

Claims

1. the double-geared roller crusher of a underlying operative minor, mainly form by mainframe (1), high speed discaling roll (2), low speed discaling roll (3), underlying operative minor (4), backbar (5), actuating unit (6), high speed discaling roll (2) is installed on the mainframe (1) with low speed discaling roll (3) symmetrical parallel, under high speed discaling roll (2) and the low speed discaling roll (3) a underlying operative minor (4) is set, underlying operative minor (4) is fixed on the mainframe (1) by backbar (5).

2. the double-geared roller crusher of a kind of underlying operative minor according to claim 1, it is characterized in that underlying operative minor (4) is symmetrical polygonal body, one narrow plane (7) is arranged at its top, both sides are provided with the concave arc groove (8) of symmetry, when two discaling rolls relatively rotated, the crushing teeth of helix shape just in time was meshed with the concave arc groove (8) on underlying operative minor (4) both sides on the double teeth roller.