CN201500548U

CN201500548U - Shear hammer mill

Info

Publication number: CN201500548U
Application number: CN2009200729139U
Authority: CN
Inventors: 俞信国; 乐其呈; 俞正
Original assignee: 俞信国; 乐其呈; 俞正
Current assignee: Shanghai Spring Valley Mechanism Manufacturing Co., Ltd.
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2010-06-09
Anticipated expiration: 2019-05-26

Abstract

A shear hammer mill mainly comprises a feed inlet 1, hammers 2, a rotor 3, a sieve plate 9, a sieve pressing frame 13 of the sieve plate 9, a discharge outlet 7, a machine body 8, a motor 6, a fixed hammer rack 4 and fixed hammers 5 arranged on the fixed hammer rack 4. The fixed hammer rack is fixed on the machine body, and the fixed hammers are fixed on the fixed hammer rack and are parallelly mounted relative to a rotary plane of the hammers at an interval. When materials enter an inner cavity of the mill, a rotary material ring is formed after being hammered by the hammers, and then the materials can be crushed again after the material ring collides with the fixed hammers, and the fixed hammers can reduce rotating speed of the material ring, change moving direction of the materials and increase component force of the material moving to the normal direction of sieve meshes, thereby increasing crushing efficiency and improving uniformity of crushed materials.

Description

Shear hammer sheet crusher

Technical field

The utility model relates to a kind of disintegrating apparatus that is used for industries such as feed, food, chemical industry, medical treatment, especially relates to a kind of shear hammer sheet crusher.

Background technology

Beater disintegrating machine is made up of charging aperture, body, rotor, hammer leaf, sieve sheet and pressure screen frame (unit) thereof, motor, discharging opening etc. usually, during work, by the driven by motor rotor, make epitrochanterian hammer leaf rotation, material enters the back from charging aperture and is pulverized by the continuous hammering of hammer leaf, material powder after the pulverizing passes the sieve aperture of sieve sheet, discharges from the pulverizer discharging opening.There is following problem in the pulverizer of prior art:

1. direction is down when the pulverizer charging aperture enters for material, hammer mills is with tangential motion direction hammering material, hammering relative velocity to material is big, though help improving crush efficiency, but after entering, material promptly moves in the same way with hammer leaf, hammer leaf obviously reduces the relative velocity of material, and hammer mills is to the favourable raising crush efficiency of the relative velocity great talent of material.

2. pulverizer is for improving crush efficiency, hammer leaf must have very big movement velocity, generally need about 100 meter per seconds to the animal-plant kind material, in the zone of correspondence sieve sheet arc length, material is done motion in the same way under hammer leaf drives, also about the 50-100 meter per second, and material is wished lower in the movement velocity on sieve surface usually, like this material along the tangential direction of circumference in mesh surface through out-of-date, obtain chance easily and time enough passes sieve aperture, make output and all improved by the uniformity of comminuting matter.Analyze according to sieve diameter commonly used at present and sieve sheet thickness, the material powder sieves effect when the 1-20 meter per second can be better, can obviously improve the output and the uniformity of improving powder, but existing pulverizer can not be taken into account the high-speed and surperficial material low velocity of sieve of hammer leaf simultaneously.

3. material movement is the tangential direction along sieve surface, and material to go out sieve aperture be in sieve normal to a surface direction, this unfavorable discharging.

For a long time, the problems referred to above are crucial difficult problems that puzzlement pulverizer technology further improves.

Summary of the invention

The utility model purpose is to overcome above-mentioned prior art defective, and a kind of shear hammer sheet crusher that can effectively improve crush efficiency and improve the powder uniformity is provided.

The purpose of this utility model is achieved through the following technical solutions, a kind of shear hammer sheet crusher, mainly comprise charging aperture, hammer leaf, rotor, sieve sheet and press screen frame (unit), discharging opening, body, motor, also comprise and decide the hammer grillage and be arranged at the hammer of deciding on the hammer grillage of deciding, the described grillage of hammering into shape surely is fixed on the body, fixed hammer is fixed on to be decided on the hammer grillage, fixed hammer and the parallel relative installation of hammer leaf Plane of rotation, and a spacing is arranged.Hammer leaf when rotation, not can with hammer grillage surely into shape and fixed hammer contacts.When material enters, be subjected to form a material ring that rotates after the hammer leaf hammering, the fixed hammer of material ring bump back material is pulverized once more, decides hammer simultaneously and has also lowered material ring rotary speed, and the material of low speed is sieving apparent motion, and favourable powder passes sieve aperture.

The sieve sheet is installed in presses on the screen frame (unit), presses the following of screen frame (unit) that vibrating motor can be set, and this vibrating motor is connected with pressing screen frame (unit).Make by isolation mountings such as springs and to press screen frame (unit) and body to separate, make sieve sheet and press screen frame (unit) independently to vibrate, the sieve sheet with decide hammer and do not bump, do not collide with hammer leaf yet.During the vibration of sieve sheet, make sieve aperture constantly obtain cleaning, improve greatly, effectively improve the screen blinding phenomenon by the ability of sieving of comminuting matter.

Fixed hammer is that the 1-50 millimeter is proper with the spacing of hammer leaf Plane of rotation, and this spacing is neglected material pulverizing requirement greatly and decided, and thinner powder can select less spacing.Spacing can be adjusted by the width of adjusting hammer leaf separation sleeve, changes the hammer leaf separation sleeve of different in width, can reach the purpose that changes fixed hammer and hammer leaf Plane of rotation spacing, perhaps by adjusting the thickness of deciding hammer this spacing is regulated.

Surely the hammer quantity of hammering into shape on the grillage of deciding is one or more, and fixed hammer is sheet, and its flat shape can be any one or the combination between them of triangle or trapezoidal or polygon or circular arc.Decide hammer and can be welded on and decide on the hammer grillage, also can adopt removablely, decide on the hammer grillage as being screwed onto by bolt.Meet mutually when fixed hammer is met mutually with hammer leaf and on the vertical plane of rotor rotating shaft, be an acute angles beta between the cutting edge.Like this, fixed hammer just is scissor with meeting mutually of hammer leaf, and favourable raising is to the shearing crushing effect of material.Because the material movement effect that stops has been played in the setting of fixed hammer, hammer leaf strengthens the relative hammering speed of material, and simultaneously, the sieve sheet surface material movement speed corresponding at fixed hammer descends favourable discharging.And material again can be at hammer leaf and is hammered into shape surely under the acute angles beta guide function, has produced towards the component of sieve aperture direction, and material is moved towards the sieve aperture direction.Above-mentioned acute angles beta is generally preferable at the 10-60 degree, and can be adjusted according to actual conditions.Such as regulating, hammering the screw space that reservation can supply bolt to regulate on the grillage, adjusting angle or the like within the specific limits surely into shape by the bolt of fixing fixed hammer.Cutting edge also can be parastate when certainly, hammer was met mutually with hammer leaf calmly.Hammer leaf can turn clockwise, also can be rotated counterclockwise, and generally be the left-right symmetry shape so decide hammer, all can meet mutually so that hammer both sides surely into shape with hammer leaf.

Surely hammer grillage quantity into shape and can be one or more, hammer grillage surely into shape, be arranged in parallel with the hammer leaf Plane of rotation often for tabular according to the width of pulverizer inner chamber.Surely hammer the annular plate-like that grillage can be an intermediate throughholes into shape, the diameter in hole does not contact with rotor so that hammer grillage surely into shape greater than root diameter.Surely hammer the grillage periphery into shape one or more fixed hammers are set, and stretch out in the ringed perimeter of hammering grillage surely into shape one or more protuberances are set, described protuberance is connected with body, is fixed on the pulverizer body will hammer grillage surely into shape.

For increasing wearability and toughness, decide to hammer into shape and hammer grillage surely into shape to adopt high strength alloy steel to make, perhaps make at ordinary steel surface soldered high strength alloy steel.

The utility model can apply to horizontal pulverizer, also can apply to the pulverizer of vertical crusher or other type.

Decide the pulverizer of hammer grillage and fixed hammer by being equipped with of said structure configuration, not only at the pulverizer mouth but also in the zone of correspondence sieve sheet arc length, hammer mills can both keep bigger relative speed difference to material, take into account the high-speed and surperficial material low velocity of sieve of hammer leaf simultaneously, hammer leaf rotates with fixed hammer the into shape and intersects when meeting mutually, form the scissor angle, material can hammered into shape under the side guiding surely, change the material movement direction, increase the component of material to the normal direction motion of sieve aperture, thereby help improving crush efficiency, further improve by the uniformity of comminuting matter.

Description of drawings

Fig. 1 is the utility model first example structure schematic diagram.

Fig. 2 is the generalized section of A-A among Fig. 1.

Fig. 3 is the utility model second example structure schematic diagram.

Fig. 4 is the generalized section of B-B among Fig. 3.

Fig. 5 hammers the framed plate structure schematic diagram into shape surely among the utility model embodiment.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Pulverizer as shown in Figure 1 and Figure 2, it is a horizontal pulverizer, by charging aperture 1, hammer leaf 2, rotor 3, surely hammer into shape grillage 4, hammer 5 into shape surely, motor 6, discharging opening 7, body 8, sieve sheet 9 and press screen frame (unit) 13 etc. to form.

Surely hammer grillage 4 into shape and be the middle annular plate-like that contains the hole, bore dia greater than root diameter so that hammer grillage surely into shape and do not contact with rotor 3, the upper and lower of its ringed perimeter stretches out and forms protuberance 4-1 and 4-2, the appropriate location of groove 10 and body 8 are connected and fixed under pulverizer charging aperture 1 and pulverizer respectively, surely hammering grillage into shape is 5, be arranged between each hammer leaf 2 and with the parallel installation of the Plane of rotation of hammer leaf 2, hammer grillage 4 circular periphery surely into shape at each and be provided with 6 and hammer 5 surely into shape.

Surely hammering 5 into shape adopts bolts to be bolted in to decide on the hammer grillage 4, surely hammer into shape 5 relative with hammer leaf 2 Plane of rotations and keep 5 millimeters spacings, surely hammer the 5 outstanding grillage ring limit parts of hammering into shape surely into shape and adopt isosceles trapezoids, when hammering 5 cutting edge 5-1 surely into shape and meeting mutually with hammer leaf 2 side cutting edge 2-1 on the vertical plane of rotor 3 rotating shafts angle β be preferably 30 and spend.Adjusting is hammered set bolt surely into shape and can be regulated β in the elliptical aperture position of hammering grillage surely into shape.Surely hammer into shape 5 and hammer leaf 2 and material meet mutually and touch part and can adopt high strength alloy steel.

Hammer leaf 2 is divided into 4 groups of installations, adopts separation sleeve to fix between every group of hammer leaf.During hammer leaf 2 rotation, can not contact with hammering grillage 4 surely into shape and hammer 5 surely into shape, hammer into shape 5 relative surely with hammer leaf 2 Plane of rotations, surely hammering 5 into shape meets mutually with hammer leaf 2 and to be scissor, when material when charging aperture 1 enters, be subjected to hammer leaf 2 hammerings and with hammer 5 bumps surely into shape, after material is obstructed, the suitable hammering speed of favourable raising and hammer leaf, effectively improve material grinding efficient, material stops that down the sieve sheet 9 surperficial material movement speed corresponding at fixed hammer descend hammering 5 surely into shape, be beneficial to material and pass sieve aperture, improve the output and the uniformity.And, decide the angle β that hammer side cutting edge 5-1 and hammer leaf cutting edge 2-1 have 30 degree with hammer leaf 2 is met mutually, and hammering the side surely into shape is towards the abduction state of sieve sheet, like this, material hammer leaf with hammering surely and shear under, more help producing motion, pass sieve aperture thereby be more conducive to material to towards the sieve aperture direction.

Fig. 3, that shown in Figure 4 is another embodiment of the present utility model.This pulverizer is a kind of horizontal pulverizer, its basic structure is identical with embodiment shown in Fig. 1, Fig. 2, the sieve sheet is installed in presses on the screen frame (unit), but below pressure screen frame (unit) 13, be provided with vibrating motor 11, this vibrating motor is connected with pressing screen frame (unit), will press screen frame (unit) and sieve sheet and body 8 thereof to separate by spring 12 isolation mountings such as grade, makes sieve sheet 9 and pressure screen frame (unit) 13 thereof independently to vibrate, sieve sheet 9 with hammer 5 surely into shape and do not contact, also do not collide with hammer leaf 2.The amplitude of sieve sheet 9 is at the 1-5 millimeter, and vibration frequency is 50 hertz.Can make the vibration of sieve sheet under vibrating motor 11 effects, thereby improve stifled sieve phenomenon, to material grinding such as the high fibers of little sieve aperture fine powder material high-moisture, effect is obvious especially.In addition, protuberance 4-1 is set, hammers the grillage bottom surely into shape and be provided with bolt hole and be connected with body 8 by bolt on the top of hammering grillage surely into shape.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all belongs within the scope of technical solutions of the utility model any simple modification, equivalent variations or modification that above embodiment did.

Claims

1. shear hammer sheet crusher, mainly comprise charging aperture (1), hammer leaf (2), rotor (3), sieve sheet (9) and press screen frame (unit) (13), discharging opening (7), body (8), motor (6), it is characterized in that, also comprise and decide hammer grillage (4) and be arranged to decide to decide hammer (5) on the hammer grillage (4), surely hammer grillage (4) into shape and be fixed on the body (8), the Plane of rotation of fixed hammer (5) and hammer leaf (2) is relative and a spacing arranged.

2. shear hammer sheet crusher as claimed in claim 1, it is characterized in that pressing the below of screen frame (unit) (13) to be provided with vibrating motor, this vibrating motor (11) is connected with pressing screen frame (unit) (13), by spring isolation mountings such as (12) pressure screen frame (unit) (13) and body (8) are separated, sieve sheet (9) and pressure screen frame (unit) (13) thereof can independently vibrate.

3. shear hammer sheet crusher as claimed in claim 1 or 2 is characterized in that, described fixed hammer (5) is the 1-50 millimeter with the spacing of hammer leaf (2) Plane of rotation.

4. shear hammer sheet crusher as claimed in claim 1 or 2 is characterized in that, the spacing of described fixed hammer (5) and hammer leaf (2) Plane of rotation can realize by the hammer leaf separation sleeve of changing different in width or the thickness of adjusting fixed hammer.

5. shear hammer sheet crusher as claimed in claim 4 is characterized in that, described fixed hammer (5) is a sheet, and flat shape can be any one of triangle or trapezoidal or polygon or circular arc, also can be the combination between them.

6. shear hammer sheet crusher as claimed in claim 1 or 2 is characterized in that, described fixed hammer (5) is met cutting edge mutually with hammer leaf (2) and be an acute angle on the vertical plane of rotor (3) rotating shaft when meeting mutually.

7. shear hammer sheet crusher as claimed in claim 6 is characterized in that, described acute angle is the 10-60 degree.

8. shear hammer sheet crusher as claimed in claim 1 or 2 is characterized in that, the described grillage (4) of hammering into shape surely be arranged in parallel with hammer leaf (2) Plane of rotation for tabular.

9. shear hammer sheet crusher as claimed in claim 8, it is characterized in that, describedly hammer the annular that grillage (4) is intermediate throughholes surely into shape, the diameter of described through hole is greater than the diameter of rotor, circular periphery is provided with one or more outward extending protuberances (4-1,4-2), and above-mentioned protuberance is connected with body (8).