CN2156931Y

CN2156931Y - Hammer crusher

Info

Publication number: CN2156931Y
Application number: CN 93208074
Authority: CN
Inventors: 李大彦
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-03
Filing date: 1993-04-03
Publication date: 1994-02-23
Anticipated expiration: 2003-04-03

Abstract

The utility model provides a hammer crusher used for crushing particulate materials. Compared with the past hammer crushers, the structure of the utility model has the difference that a rotor shaft is hollow, holes are arranged on the wall of the rotor shaft, centrifugal blower slices are installed among rotor discs, and the fastening devices of sieve slices adopts a structure that roller chain ends are connected with springs. The utility model, therefore, has the characteristics of high powder discharging efficiency, increased production efficiency, stable operation and less maintenance time.

Description

Hammer crusher

The utility model relates to a kind of granular material disintegrating apparatus, particularly beater disintegrating machine.

The common drawback of domestic existing beater disintegrating machine is: production efficiency is subjected to all multifactor impacts such as material moisture, hammer tip and sieve distance between commutator segments, deduster air quantity, above factor changes slightly, just anxious poly-decline of pulverizer productivity ratio, far do not reach design objective, sometimes even stifled machine phenomenon can take place, cause the sieve sheet to damage and make the pulverizer cisco unity malfunction.Analyze its reason, two key factors of decision beater disintegrating machine production efficiency height are: the 1. crush efficiency of hammer leaf; 2. the sieve that the sieves sheet ability that falls.Research work emphasis in the past is to improve the crush efficiency of hammer leaf and ignored the sieve sheet is sieved Research on ability, domestic existing beater disintegrating machine is exactly the ubiquity sieve of the sieve sheet crush efficiency of ability (row powder efficient) well below hammer leaf that fall, make pulverized fine grained in time not discharge, and cause repetition and excessively pulverizing ineffectually, make the production capacity of beater disintegrating machine not reach design objective.

The purpose of this utility model is exactly at above-mentioned existing in prior technology shortcoming, sets about from the sieve that improves the sieve sheet ability that falls, and improves existing beater disintegrating machine, provide a kind of production efficiency high and more stable, simple in structure, easy to use, the reliable novel beater disintegrating machine of smooth operation.

The utility model has structurally been made following two unilateral significant improvement to existing beater disintegrating machine:

1. armature spindle is selected hollow shaft for use, has the hole on the axial wall, and centrifugal airblast blade is housed between each rotor disk; During the beater disintegrating machine running, rotor resembles a centrifugal blower, make the interior generation of pulverizing chamber and engine housing have the air-flow of certain flow rate, pressure, it flows to is to diffusion all around by rotor axis, be introduced into pulverizing chamber, recross the sieve sheet and enter engine housing, enter atmosphere by following discharge gate through deduster at last, this air-flow can force and drive in the pulverizing that pulverized particulate crosses that the sieve sheet enters in the body and be finished product, the ability thereby the sieve that improves the sieve sheet falls.

The fixture of 2. sieving sheet adopts the structure of roller chain termination spring, because beater disintegrating machine in the running, owing to treat the continuous feeding of comminuting matter, the material of feeding is subjected to the strike fragmentation that high speed is rotated hammer leaf, and with the certain speed of hammer leaf in the rotation of sieve sheet inwall, form certain thickness material circulation layer, the sieve that this circulation layer has greatly hindered the sieve sheet ability that falls; The structure of employing roller chain termination spring is at the material with the hammer leaf rotor rotation sieve sheet to be produced the percussion of uneven part as the purpose of the fixture of sieve sheet, the vibration that makes the sieve sheet produce certain frequency, this vibration has to a certain degree destruction to the material circulation layer, the raising of ability thereby the sieve that helps sieving sheet falls.In addition, the sieve sheet under the vibrational state also helps passing through of material.

The advantage of beater disintegrating machine is owing to improved the structure of original beater disintegrating machine, the sieve that the has improved the sieve sheet effectively ability that falls, thus improved the production efficiency of beater disintegrating machine greatly, and stable operation is reliable, has reduced maintenance time and expense.

Below in conjunction with accompanying drawing structure of the present utility model is done further carefully to state:

Fig. 1 is the utility model internal structure sketch

Fig. 2 is a profilograph of the present utility model

Fig. 3 is the detail structure chart of sieve sheet of the present utility model and roller chain

Among the figure: 1 is hammer leaf, and 2 is the axial wall perforate, and 3 is hollow shaft, and 4 is rotor disk, and 5 are the sieve sheet, and 6 is centrifugal airblast blade, and 7 is roller chain, and 8 is spring, and 9 are sieve sheet fixture, and 10 is engine housing.Arrow points among the figure is represented the airflow direction in the beater disintegrating machine.

Beater disintegrating machine is made of the part of institute's column number among the figure; Have several axially long perforates 2 on hollow shaft 3 walls, several rotor disks 4 are housed on the hollow shaft 3, centrifugal airblast blade 6 is housed between each rotor disk 4, being equally spaced one week of outer rim of each rotor disk 4, several are vertical and run through the axle of each card, being equipped with on the axle can be around the hammer leaf 1 of this widely different commentaries on classics, in the engine housing 10, be provided with the sieve sheet 5 that be the face of cylinder concentric around the rotor disk with hollow shaft 3, on the sieve sheet 5 sieve aperture is arranged, the periphery of sieve sheet 5 is supported by the roller chain around the sieve sheet, one end of roller chain 7 is connected by buffer spring 8 on the fixture 9 of sieve sheet 5, leaves the gap that does not hinder hammer leaf 1 widely different transhipment moving between sieve sheet 5 and the rotor disk 4.

Claims

1, a kind of beater disintegrating machine that is used for the granular material pulverizing is made of rotor, sieve sheet and engine housing, it is characterized in that armature spindle is a hollow shaft, has the hole on the axial wall; Centrifugal airblast blade is housed between each rotor disk; The fixture of sieve sheet is the structure of roller chain termination spring.