CN2483092Y - Combined cone-shape milling head - Google Patents

Abstract

A combined conical milling head is characterized with a pair of inner and outer cones with the same pitch cone bus contour line, the inner cone is fixed mill, the outer cone is a movable mill, the cooperating surface of the outer cone and the inner cone is provided with groups of long shear knives and short knives and feeding grooves, the shear knives are placed in strip form intervals, each short shear knife is distributed between two long shear knives and is located on the edge of the inner and outer cone surface, the shear knives are in strip form distribution and are vertical to the rotating tangent line, and outstand form the cone surface with 0.2-1.6 mm, the multi-group feeding grooves are in triangular type, the feeding mouth is a triangular slot. The utility model provides a commercialized grinder which can guarantees the stable work of the rubber grinder and satisfies the need of market.

Description

Combination taper bistrique

The utility model relates to a kind of grinding wheel head structure that grinds facility, relates in particular to the combination taper bistrique that waste and old rubber particle is ground.

Waste old is a black pollution.According to the data introduction, the annual scrap rubber amount in the whole world is up to 6,800,000 tons, and domestic part can cause secondary pollution again as reclaimed rubber.Do not handle owing to still there is desirable method, waste old (wherein a large amount of is junked tire) is large harmful solid waste, is the medium-term and long-term insoluble public hazards of environmental protection.

Waste-tyre rubber-powder after the meticulous pulverizing is important regenerated resources, and not only alternative natural rubber raw material can mix certain proportion and make rubber tyre and rubber.The more important thing is through the tyre surface rubber powder of meticulous pulverizing and can make modified pitch, can be used for building an airport runway, high-grade highway abroad use in a large number, and China also intends using, and the social demand amount is very big, and market will supply falls short of demand.Obviously, the recycling waste old is the preferred plan that fundamentally solves environmental problem, also is the perfect design of benefiting the nation and the people.

Processing to waste old (wherein a large amount of is junked tire) has been international and domestic very the attention and problem, has wherein produced the multiple technologies scheme, handles through freezing liquid nitrogen, pulverize, but investment is big, cost is high again.Recently proposed a kind ofly to carry out the scheme of pulverization process after to the waste old swelling again with solvent, but the technology of industrial treatment difficulty comparatively, solvent can produce certain consumption.Though traditional mechanical crushing is worked into certain fineness easily by large-scale machines such as shearings, also be difficult to solve that micelle is ground to fineness more than 80 orders.As can not head it off, will have influence on the use of waste-tyre rubber-powder.As the bistrique of existing old rubber fine pulverizer, mainly be the plane bistrique, the normal time of using had only about 200 hours, must reconditioning.Reason is that the plane bistrique is healed away from the mill center, and linear velocity heals lossy more greatly; More near the mill center, the linear velocity little loss of healing is littler.

Bistrique is the parts of the most critical of pulverizer.Though the plane bistrique is made simple,,, production efficiency is progressively descended along with the abrasion of bistrique owing to can not keep its flatness for a long time; And need frequent reconditioning, often shut down and make the effective time minimizing, can have a strong impact on the output of rubber powder.Also, have now and utilize the pulverizer of plane bistrique manufacturing can only make small-sized type, and the rubber powder particle diameter of pulverizing is thicker, can not guarantee the rubber powder fineness owing to above-mentioned linear velocity problem.This shows the existing commercialization pulverizer that also is difficult to become meeting the market requirement with the mechanical type pulverizer of plane bistrique.

The purpose of this utility model is: a kind of combination taper bistrique is provided, is particularly useful for rubber crusher, can guarantee the rubber crusher steady operation, make it become a kind of commercialization pulverizer of meeting the market requirement.

The purpose of this utility model is achieved in that a kind of combination taper bistrique, in a pair of pitch cone bus of its structure outline line is identical, Outer Taper, inner cone is fixed mill, Outer Taper is moving mill, Outer Taper, the surface that inner cone mates mutually is provided with many group leaders, short shear knife and feed well, wherein shear knife is the strip interval, short shear knife is distributed between the long pruning cutting knife and interior, the outer rim of outer pyramidal surface, shear knife is that strip distributes and rotation tangential direction approximate vertical, and protrude from the surperficial 0.2-1.6mm of cone, many group feed wells are leg-of-mutton shapes, and charging aperture is leg-of-mutton wide portion.

Further improvement of the utility model is: the surface that Outer Taper, inner cone are mated mutually also is provided with ring knife, i.e. the projection of ring-type, and ring knife is in the end of the big end surfaces of coupling mutually, and with to rotate tangential direction parallel.Be cooling chamber in the chamber of inside and outside cone, and be provided with cooling fluid turnover pipe.

Principle of the present utility model is: the moving mill of Outer Taper is driven by power transmission shaft, inner cone with decide mill and can move axially, Outer Taper, ring knife can be in contact with one another on the surface that inner cone mates mutually; Thick micelle is sent into by feeding screw and is decided mill by in the wide feed well that also presents triangle to thin cross section, get material by moving mill feed well again, by implementing the differential shearing of multitool sheet, constantly micelle is rolled and be advanced to milling zone and grind, gap adjustment by endless knife can be controlled the rubber powder fineness, thereby is ground into fine glue powder.

Characteristics of the present utility model are as follows: this combination taper bistrique, be particularly useful for rubber crusher, scientific structure, principle advanced person, reliable operation, shear knife with alloy guarantees long-term continuous operation, need not frequent the adjustment and reconditioning, can be during to the certain wearing and tearing of shear knife by adjusting the operate as normal that the propelling of deciding mill guarantees machine, can make the machine of various ability to work, the production capacity height of unit both can be used for normal temperature and pulverize, and can conveniently make the machine that output reaches 180KG/H, can also dispose and be applicable to freezing pulverizing after freezing, output reaches more than the 360KG/H, fineness index height, and 80-120 purpose rubber powder can account for more than 60% after pulverizing once, in a word, the utility model makes pulverizer become a kind of commercialization pulverizer of meeting the market requirement.The utility model has overcome the unbalanced abrasion of background technology plane bistrique, adds the concentricity height of moving mill and fixed mill, and this helps improving the pulverizing quality and the efficient of bistrique.

Because the special construction of taper bistrique makes the rigidity of bistrique stronger, the water capacity in the cavity is bigger, cooling effect is better, the rubber for tire micelle that makes the plane bistrique be difficult to pulverize becomes the problem that is very easy to solution, for advantage has been created in a large amount of manufacturings of tyre surface rubber powder; Because the linear velocity problem, cause utilizing the pulverizer of plane bistrique manufacturing can only make small-sized type, and effective work area of conical grinding head is big, can make the device fabrication must be bigger.Though acquire a certain degree of difficulty in the manufacturing of taper bistrique, its single machine yield can improve about 5 times than plane bistrique.

The operation principle of taper bistrique is: in bistrique high speed rotary course, gets hopper and sends micelle to feed well, and the propelling of constantly rolling, reach the pulverizing purpose by shearing and grinding, therefore crushing process is one and makes micelle process from coarse to fine, compares with plain grinding, and pulverization principle is more apparent rationally.

The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is the structural representation of the moving mill of the utility model, and Fig. 2 is the local surfaces schematic diagram of the utility model Fig. 1

Fig. 3 is the cross section structure schematic diagram of Fig. 2;

The structural representation that Fig. 4 grinds surely for the utility model

Fig. 5 is the local surfaces schematic diagram of the utility model Fig. 4, and Fig. 6 is the cross section structure schematic diagram of Fig. 5;

As shown in the figure, combination taper bistrique is made of jointly Fig. 1 and Fig. 4, Fig. 1 mates in Fig. 4 and moving mill rotation during work, the pitch cone bus outline line of two cones is identical, Outer Taper 1, inner cone 2 surface of coupling mutually is provided with many group leaders, short shear knife and 6,5 and feed well 7, wherein shear knife is that strip is spaced apart, short shear knife is distributed between the long pruning cutting knife and interior, the big end outer rim of outer pyramidal surface, shear knife is that the strip distribution is vertical with the rotation tangential direction, and also the tiltable certain angle improves cutting effect, and the angle of inclination is generally about 5 degree, and protruding from the surperficial 0.2-1.6mm of cone, is excellent with 0.2-0.8mm especially.Many group feed wells 7 are leg-of-mutton shapes, and charging aperture is leg-of-mutton wide portion.Bistrique body, Outer Taper, inner cone all can adopt the 10#-45# steel, and shear knife is a wear-resisting alloy steel, as YG8.Shear knife be shaped as rectangle, blade 5-1,6-1 are the limit of rectangle.

The surface that Outer Taper, inner cone are mated mutually also is provided with ring knife 1, i.e. the projection of ring-type is distributed in the whole circumference of cone, and ring knife is in the end of match surface mutually, and with to rotate tangential direction parallel.Be cooling chamber 4 in the chamber of inside and outside cone, and be provided with cooling fluid paddle hole 2.The movable sealing of inner cone cooling is prior art, as rubber seal.

Outer Taper, the quantity one of many groups of long and short shear knives that distribute in the inner cone is odd number, one is even number, the total quantity of shear knife is that 40-120 props up on each cone, thereby the on-stream differential scissors that can remain the cone bistrique of bistrique, and angle of taper can be selected in the scope of 20-48 degree, preferred 26-38 degree, i.e. and the half-angle of taper is at the 13-19 degree.When pulverizing thick rubber powder as a need, annular blade can be cancelled.Gap between fixed mill and the moving mill is free adjustment as required.

Claims (4)

1, a kind of combination taper bistrique, it is characterized in that comprising the identical inside and outside cone of a pair of pitch cone bus outline line, inner cone is moving mill for fixed mill, Outer Taper, Outer Taper, the surface that inner cone mates mutually is provided with many long and short shear knives of group and feed well, wherein shear knife is the strip interval, short shear knife is distributed between the long pruning cutting knife and in the outer rim on inside and outside cone surface, shear knife is that strip distributes and rotation tangential direction approximate vertical, and protrude from the surperficial 0.2-1.6mm of cone, many group feed wells are leg-of-mutton shapes, and charging aperture is leg-of-mutton wide portion.

2, by the described combination taper of claim 1 bistrique, it is characterized in that the surface that Outer Taper, inner cone mate mutually is provided with ring knife, i.e. the projection of ring-type, ring knife is in the end of match surface mutually, and with to rotate tangential direction parallel.

3,, it is characterized in that angle of taper can select in the scope of 20-48 degree, preferred 26-38 degree by the described combination taper of claim 1 bistrique.

4, by the described combination taper of claim 1 bistrique, it is characterized in that Outer Taper, one of the quantity of many groups of long and short shear knives that distribute in the inner cone is an odd number, and one is even number, and the quantity of the shear knife of each cone is that 40-120 props up.

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