CN201760309U

CN201760309U - Hammer crusher

Info

Publication number: CN201760309U
Application number: CN2010202997727U
Authority: CN
Inventors: 刘达春; 谭贤诚
Original assignee: CHONGQING LONGJIAN MACHINERY MANUFACTURE Co Ltd
Current assignee: CHONGQING LONGJIAN MACHINERY MANUFACTURE Co Ltd
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2011-03-16
Anticipated expiration: 2020-08-20

Abstract

The utility model relates to a hammer crusher applicable to sand making operation. An existing hammer crusher can be only used for crushing various limited materials with middle-low hardness, water content ratio smaller than 15% and weak abradability, and is low in durability of a hammer head and low in production efficiency. A toothed plate and a lateral protecting plate are mounted inside an upper shell; a feeding port is arranged on the top of the upper shell; a lateral protecting plate and a sieve plate are mounted inside a lower shell; a crushing cavity is formed by the upper shell and the lower shell; finished sands flow out through the sieve plate; a swing plate, a sealing cover, a V-belt pulley, non-return gaskets and a bushing are mounted on a spindle; and two ends of the spindle are tightly pressed by hexagonal nuts and locked by the non-return gaskets. The hammer crusher is applicable to sand making operation of hard materials with compressive strength being no more than 150Mpa, can also crush the materials with higher water content ratio, the service life is prolonged, and the cost is low.

Description

Hammer mill

Technical field

The utility model relates to a kind of processing equipment, relates in particular to a kind of hammer mill that is applicable to the operation of system sand.

Background technology

Can only be used for broken various softs and the weak material of abrasion as Chinese patent 03230055.7 disclosed " hammer mill ".The compression strength of its material is no more than 100MPa, and moisture content is less than 15%.The material that is broken only is coal, salt, chalk, gypsum, brick and tile, lime stone etc.The tup durability is low, and production efficiency is low.

Summary of the invention

Hammer mill comprises upper and lower enclosure, castellated plates, backplate, main shaft, knockout plate, hammer, sieve plate, V belt wheel, hex nut and locking packing ring etc.Castellated plates and side guard plate are housed in the upper casing, and the upper casing top is provided with charging aperture; Side guard plate and sieve plate are housed in the lower casing, and upper and lower enclosure constitutes crusher chamber jointly, and the finished product sandstone flows out through sieve plate; Knockout plate, seal cover, V belt wheel, floor clip and lining are contained on the main shaft, and two ends compress with hex nut and lock with floor clip;

For better effect:

Be provided with on the knockout plate of 7～11 layouts and wear bearing pin and hammer.

Every knockout plate is provided with 16～20 pinned holes, per 4 pinned holes be one group at circumference first-class half through uniform, totally 4～5 groups of pinned holes that radius increases progressively.After shortening, the hammer wearing and tearing use the pinned hole that another group radius increases instead.

Its long and wide length ratio of the stress surface of hammer increases to 2.5～3 times.

The hammer portion of hammer adopts the high-wearing feature metal material, and shank adopts the metal material of high-intensity high-tenacity.

1, can regulate the knockout plate of hammer radius of turn, each knockout plate has 4～5 groups of totally 16～20 holes.After hammer wearing and tearing shorten, can change the outfit in the knockout plate hole that another group radius increases wearing bearing pin, make the radius of turn of hammer keep among a small circle change, it impacts the linear velocity substantially constant, thereby keeps the crushing efficiency of machine; The utilization rate that improves hammer simultaneously prolongs the service life of hammer.

2. improved compound hammer: its long and wide length ratio of stress surface by hammer increases to 2.5～3 times, has increased effective volume that uses part of hammer.The hammer portion of hammer adopts the high-wearing feature metal material, and shank adopts the metal material of high-intensity high-tenacity.The material of two kinds of difference in functionalitys of use combines, the shank high-intensity high-tenacity, impacts the part high-wearing feature.The use of hammer consumes the ratio raising that part accounts for the tup gross mass, and utilization rate and its usage economy obviously improve, and the cost of unit finished product reduces.

3. compress all parts that are contained on the main shaft with hex nut, and lock with special floor clip.The coupling mechanism force of hex nut is bigger, and special-purpose floor clip locking is more reliable, and the part on the axle is difficult for loosening; Because hex nut is arranged in the two ends outermost of main shaft, also is convenient to the tightening once more of nut; The reliability of complete machine is improved, and spindle unit improves service life.

4. only use a V belt wheel transferring power, cancelled the conventional main shaft other end and joined a flywheel.Alleviate the complete machine quality and reduced cost; Reduced the spindle unit rotator inertia, be not damaged with protection hammer, knockout plate when shutdown in time takes place to help when card blocks up the too many machine of feeding.

The utility model also is no more than the system sand operation of hard material among the 150MPa applicable to compression strength, the material higher to moisture content also can add the water fragmentation.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the utility model one structural representation.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the structural representation of hammer.

The specific embodiment

Castellated plates 3 and side guard plate 4 are housed in the hammer mill upper casing 2, and the top is provided with charging aperture; Side guard plate 4 and sieve plate 10 are housed in the lower casing 1, constitute crusher chamber jointly, the finished product sandstone flows out through sieve plate 10; Knockout plate 5, seal cover 7, V belt wheel 14, floor clip 9 and lining etc. are contained on the main shaft 12, compress, also lock with floor clip 9 with hex nut 8; Be equipped with on the knockout plate 5 of 10 layouts and wear bearing pin 11, hammer 6 is installed on it; The hammer portion 62 of hammer is the ZGCr26 cast steel with high chromium, and its shank 61 is a 40# medium carbon steel, and every knockout plate 5 is provided with 16 pinned holes, per 4 pinned holes be one group at circumference first-class half through uniform, totally 4 groups; After shortening, hammer 6 wearing and tearing use the pinned hole that another group radius increases instead.

Motor is sent to main frame V belt wheel by V-belt with power, drives main shaft 12 rotation at a high speed, and building stones feed by charging aperture, and material feeds in the machine from the top material inlet, is subjected to the strike, impact, shearing, abrasive action of the hammer 6 of high-speed motion and pulverizes.In the rotor bottom, be provided with in sieve plate, the comminuting matter grade and discharge by sieve plate less than screen size, be trapped in strike and the grinding that continues to be subjected to hammer 6 on the sieve plate greater than the coarse fraction of screen size, at last by outside the sieve plate discharge machine.

Claims

1. a hammer mill that is applicable to the operation of system sand comprises upper casing (2), lower casing (1), and it is characterized in that: castellated plates (3) and side guard plate (4) are housed in the upper casing (2), and upper casing (2) top is provided with charging aperture; Side guard plate (4) and sieve plate (10) are housed in the lower casing (1), and upper and lower enclosure constitutes crusher chamber jointly; Knockout plate (5), seal cover (7), V belt wheel (14), floor clip (9) and lining are contained on the main shaft (12), and two ends compress, also lock with floor clip (9) with hex nut (8).

2. hammer mill as claimed in claim 1 is characterized in that: be provided with on the knockout plate 5 of 7～11 layouts and wear bearing pin (11) and hammer (6).

3. hammer mill as claimed in claim 2 is characterized in that: every knockout plate 5 is provided with 16～20 pinned holes, per 4 pinned holes be one group at circumference first-class half through uniform, totally 4～5 groups of pinned holes that radius increases progressively.

4. hammer mill as claimed in claim 2 is characterized in that: its long and wide length ratio of the stress surface of hammer increases to 2.5～3 times.

5. hammer mill as claimed in claim 2 is characterized in that: the hammer portion (62) of hammer adopts the high-wearing feature metal material, and shank (61) adopts the metal material of high-intensity high-tenacity.