The crushing head device that is used for high-efficient shearing fine crusher
Technical field
The present invention relates to a kind of crushing head device of high-efficient shearing fine pulverizer, specifically material is thrown between the cutting blade and fixed blade of precision-fit because of the centrifugal action of the rotor of high speed rotating, the device of comminuting matter is sheared in the relative motion of cutting blade and fixed blade, belongs to the crushing technology field of shearing.
Background technology
Because the difference of material characteristic, some food can not produce too much heat in the food crushing process, such as the big Rice ﹠ peanut milk of peanut butter, making baby ground rice etc., too much heat can cause the variation (reaching 60 as rice starch in temperature rise can gelatinization when spending) of product quality; Be rich in the material of fibrous matter in addition, such as bean dregs, fruits and vegetables skin slag, coconut meat etc., the finished product granularity requirements is very little after the fine pulverizing, and the gap delta between the required fixed blade is very little, otherwise causes discharging not smooth.Fine pulverizing is the important manufacturing process that food material is handled in earlier stage, and it then is the most effective grinding mode of fibre material etc. that shearing-type is pulverized.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of crushing head device that is used for high-efficient shearing fine crusher is provided.
According to technical scheme provided by the invention, the crushing head device that is used for high-efficient shearing fine crusher comprises vane rotor and encircles cutting head surely, described vane rotor is contained in to be decided in the ring cutting head, cutting blade is housed on the vane rotor, surely encircle fixed blade is housed in the cutting head, gapped between described cutting blade and the fixed blade, material is progressively sheared in the high speed relative motion process of cutting blade and fixed blade and is pulverized.
Surely encircle in the cutting head described, fixed blade is installed between drag ring and the following drag ring, and last drag ring is installed in the top board below, and following drag ring is installed in the lower platen top, spacing ring is installed between top board and the lower platen, and top board and lower platen interconnect.
Described fixed blade has dug skewed slot, the rake face of fixed blade and the mutual out of plumb of back knife face, and the scope of anterior angle α is at 3-6 °, and the scope of relief angle β is 10-15 °.
The quantity of described fixed blade is installed between drag ring and following drag ring with annular between 200-250 equably, and leaves gap delta between adjacent two fixed blades, and the scope of gap delta is at 0.02-3mm.
Described cutting blade is welded on the outer rim of vane rotor equably, and cutting blade has 5-10, the rake face of cutting blade and the mutual out of plumb of back knife face, and anterior angle η scope is at 10-15 °, and relief angle γ scope is at 8-15 °.
Leave gap h between described fixed blade and the cutting blade, the scope of gap h is 0.08-0.15mm.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Because reasonably designed the angle of fixed blade, cutting blade rake face and back knife face, the gap between fixed blade and the cutting blade 7 makes the material that is close to blade be subjected to the effect of cutting force, is pulverized better; Owing to have skewed slot on the fixed blade, thereby the material after the pulverizing can be flowed out swimmingly.In addition, smooth and easy because of discharging reduces the heat that produces in the crushing process, can not change the quality of some heat sensitive materials, finally realizes the quick fine pulverizing of fibre material, heat sensitive material etc.
Description of drawings
Fig. 1 is the used cutting head cutaway view that encircles surely of the present invention.
Fig. 2 cooperates schematic diagram for the dynamic and static blade of the present invention.
Fig. 3 is the fixed blade front view.
Fig. 4 is a fixed blade A-A cutaway top view.
Fig. 5 is the fixed blade left view.
Fig. 6 is the fixed blade partial enlarged view.
Fig. 7 is the cutting blade partial enlarged view
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1, 2, fixed blade 2 is installed between drag ring 1 and the following drag ring 3, last drag ring 1, following drag ring 3 are fixed between top board 4 and the lower platen 6 by screw bolt and nut, so just limited moving up and down of fixed blade 2, the spacing ring 5 that is installed between top board 4 and the lower platen 6 has limited moving radially of fixed blade 2, and cutting blade 7 is welded on the vane rotor 8.
Shown in Fig. 3,4,5,6: the rake face 9 of fixed blade 2 and back knife face 10 mutual out of plumb, anterior angle η scope is at 10-15 °, and back angular region is at 8-15 °; Have skewed slot on the rake face 9, make the discharging gap broaden gradually, be equivalent to increase the draw ratio of " discharge opening ".The quantity of described fixed blade 2 is at 200~250, and annular is installed in 3 of drag ring 1 and following drag rings, and leaves gap delta between adjacent two fixed blades 2, and the scope of gap delta is at 0.02-3mm.
As shown in Figure 7: be welded on the rake face 11 and back knife face 12 mutual out of plumb of the cutting blade 7 on the vane rotor 8, anterior angle η scope is at 10-15 °, and relief angle γ scope is at 8-15 °.Leave gap h between described fixed blade 2 and the cutting blade 7, gap h scope is 0.08-0.15mm.
When rotor high-speed rotates (changeing scooter 6000-12000r/min), material is under the powerful centrifugal action of impeller 8 generations of rotation at a high speed, be pressed on the fixed blade 2, the high speed relative motion of fixed blade 2 and cutting blade 7, make the material cutting and grinding of being close to blade, the material after the pulverizing is discharged through fixed blade 2 gaps.