CN2186604Y

CN2186604Y - Beater pulverizer hammer

Info

Publication number: CN2186604Y
Application number: CN 94211684
Authority: CN
Inventors: 张友祥; 王爱德
Original assignee: GUANGXI AGRICULTURE UNIV
Current assignee: GUANGXI AGRICULTURE UNIV
Priority date: 1994-05-17
Filing date: 1994-05-17
Publication date: 1995-01-04
Anticipated expiration: 2004-05-17

Abstract

The utility model relates to a hammer for beater pulverizers. The hammer which has various shapes is provided with fixing holes, and the working surfaces at both sides of the hammer are in sharp angle shape, arc shape or streamline shape. Materials receive just center (surface) impact when the hammer is in use, which improves pulverizing efficiency and lowers energy consumption thereby.

Description

Beater pulverizer hammer

The utility model relates to the hammer leaf that beater grinder is used.

Beater grinder is very universal in industry such as feed, cereal processing industry and chemistry, and its operation principle mainly is the purpose that the strike of material is reached comminuting matter by the hammer leaf of rotation at a high speed.The now open hammer leaf of using comprises rectangle hammer leaf, trapezoidal hammer leaf and mixing shape hammer leaf etc., and it all is a plane that its working face (hammer leaf thickness) is located, and is fixed on by the hole on the hammer leaf and carries out work on the pulverizer disk.And once used the high-speed photography of used 5000 width of cloth/seconds of 7300 width of cloth/seconds, Beijing agricultural machinery according to West Germany science film research institute, take the film of simple grain iblet situation when the inner quilt of existing pulverizer is pulverized, the phenomenon that has shown eccentric impact, be corn to enter the impact that is subjected to the plane hammer leaf after the pulverizing chamber mainly be eccentric the impact, impact and seldom be subjected to the positive heart (face).Be subjected to the eccentric iblet that impacts and produced a turning moment, iblet has been produced rotatablely move, and can not make its fragmentation, only under the enough big situation of impact velocity, just might make the iblet fracture, therefore also must further pulverize, just can reach and close the granularity that symbol requires.The reason that causes eccentric impact phenomenon mainly is because rotating disk when running such as the same typhoon machine of hammer leaf are housed, and forces material to flow to hammer leaf working face edge along the air-flow of its formation.Above reason makes existing beater grinder certainly will increase energy consumption, reduces crush efficiency.

The purpose of this utility model is at existing beater grinder hammer leaf the eccentric problem of impacting of material, provide a kind of and can make material in crushing process, mainly be subjected to the positive heart (face) to impact, thereby improve the crushing effect of pulverizer and reduce the novel hammer leaf of its power consumption.

Realize the scheme of the utility model purpose, be to improve the hammer leaf of known beater grinder, being about to working face is that the plane known hammer leaf transformation of the way is acute angle type or circular arc type or streamlined for working face.

The beater grinder that adopts this novel hammer leaf is when work, though material is subjected to the effect of air-flow equally, the compressed gas fluid layer that has overcome plane hammer leaf existence forces the problem of material to hammer leaf working face two side flow.This moment, the flow direction of air-flow was to move along the inclined working or the cambered surface of hammer leaf, and the entire working surface that granule materials just can directly contact hammer leaf forms the positive heart (face) impact, thereby improves crush efficiency, and reaches the purpose that cuts down the consumption of energy.

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

Fig. 1 is the front view of an embodiment of the utility model.

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

Fig. 3 is the front view of another embodiment of the utility model.

Fig. 4 is the left view of Fig. 3 embodiment.

Fig. 5 is the eccentric material schematic diagram that impacts of plane hammer leaf.

Fig. 6 is that the positive heart of the utility model acute angle set hammer sheet (face) impacts the material schematic diagram.

Fig. 1,2 embodiment hammer leaves 1 are rectangle, and 5 millimeters of thickness have two bearing pin circular holes 2 that are connected with the pulverizer rotating disk on the hammer leaf, and the both sides working face of hammer leaf is 70 ℃ of acute angle types, and length is 5 millimeters at the bottom of the acute triangle.Hammer leaf 1 is installed on the pulverizer rotating disk by bearing pin, and can reverses end for end to use.During work, as shown in Figure 6, material directly is subjected to the positive heart of hammer leaf 1 acute angle (face) impact and is pulverized, and has improved crush efficiency.

Fig. 3,4 another embodiment hammer leaves 1 still are rectangle, and 7 millimeters of thickness have two bearing pin circular holes 2 that are connected with the pulverizer rotating disk on the hammer leaf, and it is 3.5 millimeters semicircle cambered surface that the both sides working face of hammer leaf respectively is radius.During work, as shown in Figure 5, material directly is subjected to the positive heart (face) impact of hammer leaf 1 cambered surface and is pulverized.

Claims

1, a kind of beater grinder hammer leaf, the hammer leaf both sides of different shape are working face, and the hole of the usefulness of fixing is arranged on the hammer leaf, the working face that it is characterized in that hammer leaf is acute angle type or circular arc type or streamlined.

2,, it is characterized in that working face is the thickness that length equals hammer leaf at the bottom of the triangle of acute angle type according to the described hammer leaf of claim 1; The arc radius of circular arc type equals half of hammer leaf thickness.