CN203470081U

CN203470081U - Hammer crusher

Info

Publication number: CN203470081U
Application number: CN201320541606.7U
Authority: CN
Inventors: 娄可柏; 胡建平; 王金胜; 张志勇
Original assignee: Zhejiang Tianneng Power Materials Co Ltd
Current assignee: Zhejiang Tianneng Power Materials Co Ltd
Priority date: 2013-09-02
Filing date: 2013-09-02
Publication date: 2014-03-12
Anticipated expiration: 2023-09-02

Abstract

The utility model discloses a hammer crusher. The hammer crusher comprises a main shaft and a hammerhead, wherein the hammerhead comprises a hammer seat fixedly connected to the main shaft and a hammer sleeve detachably connected to the hammer seat, and one end, which is far away from the hammer seat, of the hammer sleeve is provided with an expansion head. The hammer crusher has the advantages that by arranging the detachable hammerhead and the sleeve with the expansion head at one end far away from the hammer seat, the working area of the hammerhead is effectively increased under the condition that the weight of the hammer crusher is scarcely increased; when the hammer crusher is maintained, only the damaged hammer sleeve needs to be disassembled and replaced, and the whole hammerhead does not need to be replaced, so that the working strength is effectively reduced while raw materials are saved.

Description

A kind of hammer mill

Technical field

The utility model relates to a kind of breaker for block, particularly a kind of hammer mill.

Background technology

The material that hammer mill is is directly 600-1800 millimeter by maximum particle size is crushed to 25 or 25 millimeters of following single stage crushing disintegrating machines.Hammer mill is applicable at the broken medium-hard material of the industrial departments such as cement, chemical industry, electric power, metallurgy.Hammer mill is mainly to complete broken material operation by impact energy.During hammer mill work, driven by motor rotor is made High Rotation Speed, material enters in disintegrating machine chamber uniformly, the tup of the high speed rotary being connected with rotor impacts, shearing splitting material causes material and is broken, simultaneously, the Action of Gravity Field of material self makes material rush at support body Internal baffle, grating from the tup of High Rotation Speed, and the material detention that is greater than screen size continues to be subject to strike and the grinding of hammer on sieve plate, until be crushed to required discharging-material size finally by outside sieve plate discharge machine.

Because tup is in when work, need directly with material, shock to occur and carry out broken material, very easily impaired.And the tup of now widely used disintegrating machine, whole tup is as a whole, directly and rotating shaft hinged, monoblock type tup has following shortcoming: tup hammering face is easy to wear, and tup is scrapped with regard to integral body, and tup needs integral replacing, could produce by normal boot-strap, change the frequency higher; Service life is short, consumes highly, and due to every tup Heavy Weight, during replacing, labour intensity is large, the repair time is long; During replacing, first will dismantle old tup then new tup is installed again, remove and install all and will in machine, implement, space is little, need to participate in that maintainer is more, labour intensity is very large.And the wearing and tearing of whole tup is only the sub-fraction of tup, wasted greatly material; And owing to running into grinder hammerhead in production reality, change frequently, production cost is very high, and labor strength is very large, and operating efficiency is very low.

In order to overcome the shortcoming of monoblock type tup, having publication number is that the patent documentation of CN202725258U discloses a kind of grinder hammerhead, comprises tup main body, hammer cover, bearing pin, and tup main body outside is fixed with hammer cover by bearing pin.

Although above patent documentation designs by the split to tup, make tup be convenient to installation, dismounting and change, saved a large amount of labours, repair time and material.But and unresolved tup problem easy to wear under the working environment of high-frequency and high strength collision.

Utility model content

The utility model provides a kind of hammer mill, the shape of appropriate design tup, and to solve the flimsy problem of tup of existing hammer mill, and it is light to have quality, and working surface intensity is large, the advantages such as easy accessibility.

A hammer mill, comprises main shaft and tup, it is characterized in that, described tup comprises the hammer seat being fixedly connected with described main shaft, and the hammer cover removably connecting with described hammer seat, described hammer cover away from one end of hammer seat with the head expanding.

During hammer mill work, the hammer cover of tup is groundwork interval, impact, shearing splitting material, therefore, hammer cover is compared with easy damaged, and hammer cover arranges with hammer seat is detachable, make disintegrating machine when maintenance, only need dismounting and change the hammer cover damaging, and not needing to change whole tup, when saving material, effectively reducing working strength; And relative hammer cover, operation interval is mainly distributed on the head of hammer cover away from one end of hammer seat, and therefore, the head that away from hammer seat one end, expansion is set at hammer cover can, when substantially not increasing hammer mill weight, effectively increase the work area of tup.

In order to make tup around main shaft stability of rotation, preferably, described tup has the center line perpendicular to main shaft, described hammer cover comprises and hammers a linkage section being connected and described head into shape, expansion arc transition by trapezoidal shape is connected described linkage section with head, the upper bottom surface of this expansion arc is towards main shaft, and bottom surface is connected with described head.

Further preferred, described expansion arc has two sidewalls parallel with main shaft, and two other opposing sidewalls vertical with main shaft, and wherein the angle of parallel with main shaft two sidewalls and center line is 60 °.In the situation that expansion arc length is constant, if described angle is less than 60 °, expansion arc, along shorter perpendicular to the height of centerline direction expansion, makes work area can not get effective expansion; If described angle is greater than 60 °, can makes the thickness reduction of expansion arc on centerline direction, thereby the anti-shock strength of described head is declined.Therefore, described angle is arranged on 60 °.

In order to strengthen anti-shock strength and the wearability of the head in working region, preferred, the periphery of described head is coated with wear-resistant material layer.

Head the anti-shock strength of the section start expanding a little less than, easily there is herein fracture, therefore, preferred, described wear-resistant material layer extends upward from described head, the length of extension is head length 1/5～1/3.Make wear-resistant material layer cover head at the section start expanding, strengthen the whole anti-shock strength of hammer cover.

Preferably, head dorsad main shaft one side be ，Gai bottom surface, bottom surface be the arc surface centered by main shaft.When the arc surface of setting centered by main shaft makes material and described bottom surface occur to impact, the impact of generation mostly is tangential impact, effectively reduces the radial impact power that is delivered to main shaft.

For the working region of tup is rationally set, preferred, along on centerline direction, described hammer cover is 1:2～1:4 with the length ratio of tup.

Further preferred, along on centerline direction, the length ratio 1:3～1:6 of described expansion arc and hammer cover.

The beneficial effects of the utility model:

Hammer mill of the present utility model, by dismountable tup is set, and the hammer cover away from one end of hammer seat with expansion head, in the situation that substantially not increasing hammer mill weight, effectively increase the work area of tup; And disintegrating machine, when maintenance, only needs dismounting and changes the hammer cover damaging, and not needing to change whole tup, effectively reduces working strength when saving material.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

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

The specific embodiment

As depicted in figs. 1 and 2, the present embodiment comprises main shaft 1 and tup 2, and tup 2 comprises the hammer seat 3 being fixedly connected with main shaft 1, and overlaps 4 with the hammer that hammer seat removably connects, and hammer overlaps 4 one end away from hammer seat 3 with the head 5 of expansion.

The periphery of head 5 is coated with wear-resistant material layer, and wear-resistant material layer extends upward from head 5, and the length of extension is 1/4 of head 5 length.

Tup 2 has the center line perpendicular to main shaft, and hammer overlaps 4 and comprises and hammer seat 3 linkage sections that are connected 7 and head 5, and expansion arc 6 transition by trapezoidal shape are connected linkage section 7 with head 5, and the upper bottom surface of expansion arc 6 is towards main shaft 1, and bottom surface is connected with head 5.

Expansion arc 6 has two sidewalls parallel with main shaft 1, and two other opposing sidewalls vertical with main shaft 1, and wherein the angle of parallel with main shaft 1 two sidewalls and center line is 60 °.In expansion arc 6 length, constant in the situation that, if described angle is less than 60 °, expansion arc 6, along shorter perpendicular to the height of centerline direction expansion, makes work area can not get effective expansion; If described angle is greater than 60 °, can makes the thickness reduction of expansion arc 6 on centerline direction, thereby the anti-shock strength of head 5 is declined.Therefore, described angle is arranged on 60 °.

Head 5 dorsad main shaft 1 one sides is that ，Gai bottom surface, bottom surface is the arc surface centered by main shaft 1.When the arc surface of setting centered by main shaft 1 makes the bottom surface of material and head 5 occur to impact, the impact of generation mostly is tangential impact, effectively reduces the radial impact power that is delivered to main shaft 1, the service life of improving main shaft.

For the working region of tup is rationally set, along on centerline direction, hammer cover 4 is 1/2 with the length ratio of tup 2.

For the working region of tup is rationally set, along on centerline direction, the length ratio 1/4 of expansion arc 6 and hammer cover 3.

When the hammer mill of the present embodiment is worked, the hammer cover 4 of tup 2 is groundwork interval, impact, shearing splitting material, therefore, hammer cover 4 is compared with easy damaged, and hammer cover 4 detachably arranges with hammer seat 3, make disintegrating machine when maintenance, only need dismounting and change the hammer cover 4 damaging, and do not need to change whole tup 2, when saving material, effectively reduce working strength; And hammer overlaps relatively, operation interval is mainly distributed on the head 5 of hammer cover 4 away from one end of hammer seat, therefore the head 5 that, away from hammer seat 3 one end, expansion is set at hammer cover 4 can, when substantially not increasing hammer mill weight, effectively increase the work area of tup 2.

Claims

1. a hammer mill, comprises main shaft and tup, it is characterized in that, described tup comprises the hammer seat being fixedly connected with described main shaft, and the hammer cover removably connecting with described hammer seat, described hammer cover away from one end of hammer seat with the head expanding;

Described tup has the center line perpendicular to main shaft, described hammer cover comprises and hammers a linkage section being connected and described head into shape, expansion arc transition by trapezoidal shape is connected described linkage section with head, and the upper bottom surface of this expansion arc is towards main shaft, and bottom surface is connected with described head;

Described expansion arc has two sidewalls parallel with main shaft, and two other opposing sidewalls vertical with main shaft, and wherein the angle of parallel with main shaft two sidewalls and center line is 60 °.

2. hammer mill as claimed in claim 1, is characterized in that, the periphery of described head is coated with wear-resistant material layer.

3. hammer mill as claimed in claim 2, is characterized in that, described wear-resistant material layer extends upward from described head, and the length of extension is head length 1/5～1/3.

4. hammer mill as claimed in claim 1, is characterized in that, described head dorsad main shaft one side is that ，Gai bottom surface, bottom surface is the arc surface centered by main shaft.

5. hammer mill as claimed in claim 4, is characterized in that, along on centerline direction, described hammer cover is 1:2～1:4 with the length ratio of tup.

6. hammer mill as claimed in claim 5, is characterized in that, along on centerline direction, and the length ratio 1:3～1:6 of described expansion arc and hammer cover.