CN202398389U - Pulverizer rotor - Google Patents

Abstract

The utility model relates to a pulverizer rotor and belongs to the technical field of fodder, grain oil and chemical machinery. The pulverizer rotor comprises a rotor main shaft positioned in the center; a cylindrical cylinder body sealed in the circumferential direction is fixed on the rotor main shaft; the cylindrical cylinder body and the rotor main shaft share the same axial line; a plurality of spacing rings are fixed on the outer circumference of the cylindrical cylinder body at equal intervals along the length direction of the cylinder body; groups of pin shaft holes are formed on the spacing rings respectively; pin shafts are inserted in the pin shaft holes in sequence; a hammer slice is positioned in the space between each two adjacent spacing rings; two hammer slice mounting holes are symmetrically formed on each hammer slice; each hammer slice is hung on one pin shaft through one hammer slice mounting hole; standby pin shaft holes are formed on the spacing rings respectively; and the distance between each standby pin shaft hole and a corresponding pin shaft hole is equal to the distance between two hammer slice mounting holes on each hammer slice. When the pulverizer rotor runs, the air resistance is small, the electricity consumption is lowered, and the hammer slices can be replaced conveniently and quickly.

Description

A kind of rotor mill

Technical field

The utility model relates to a kind of pulverizer, relates in particular to a kind of rotor mill, belongs to feed, grain and oil, chemical machinery technical field.

Background technology

At present; Feed, grain and oil, industrial chemicals are carried out grinding and processing mainly adopt beater disintegrating machine; Beater disintegrating machine comprises casing, be arranged in the pulverizing chamber of casing and be arranged in the rotor of pulverizing chamber, and the top of pulverizing chamber is provided with charging aperture, and the bottom is provided with expansion chamber; Between charging aperture and the expansion chamber screen frame is installed, is fixed with the sieve sheet on the screen frame.Rotor is installed on the rotor main shaft; The rotor main shaft two ends are supported on the frame through bearing block; The disc hammer frame plate is installed on the main shaft by certain intervals, is spaced from each other through main shaft distance bushing between the hammer frame plate, and the outward flange of hammer frame plate is evenly distributed with many group pin shaft holes; Bearing pin is installed in the pin shaft hole, and hammer leaf is installed on the bearing pin and passes through hammer leaf spacer axial restraint.

During pulverizer work, armature spindle drives hammer frame plate and drives the hammer leaf high speed rotating that is contained on the bearing pin, hammer leaf centrifugal development simultaneously.Material gets into pulverizing chamber from the charging aperture at pulverizer top, at first gets into accelerating region, at accelerating region; The decrease speed of material is lower; When getting into pulverizing chamber, contact with hammer leaf, the linear velocity of hammer leaf is higher, and is broken because both huge speed differences cause material to overwhelm; Get into district at full speed then, material flies to the sieve sheet under action of centrifugal force, bumps once more with the sieve sheet, becomes granule by bulky grain, and pulverized small particles material passes the sieve aperture of sieve sheet, under the effect of gravity and auxiliary air draft system, discharges from discharging opening.

Not enough below the tradition rotor mill exists: (1) numerous hammer frame plate areas are big, Heavy Weight; Main shaft distance bushing weight between the adjacent hammer frame plate is also very heavy; Add numerous hammer leaf spacers; Make that the gross weight of rotor mill self is big, the energy consumption that consumes during rotation is high, needs a lot of energy that consume during braking equally.(2) although hammer leaf only is mounted in the outward flange of hammer frame plate, the both ends of the surface of the whole disc face of all hammer frame plates all rub with the interior air-flow of pulverizing chamber when rotor high-speed turns round, and produce very big windage, have more aggravated the consumption of power.(3) rotor in the course of the work, the axial location of each hammer leaf is fixed by the hammer leaf spacer, in the rotor turning course, each hammer leaf is in the same plane all the time, can not destroy the circulation layer of material, and pulverizer efficient is reduced.(4) the rotary inertia quality and this particle that equal each particle in the rigid body to the distance of rotating shaft square the summation of product; All the distance from rotor axis is far away owing to numerous hammer leaf spacers, so the hammer leaf spacer is bigger with respect to the rotary inertia of rotor axis.(5) numerous hammer leaf spacers are installed on each bearing pin, have increased the external diameter of bearing pin, make whole front face area bigger, because bearing pin is far away apart from rotor axis, the linear velocity when rotating is bigger, therefore can improve windage greatly.(6) hammer leaf of hammer frame plate is installed in the outer rim of hammer frame plate, because the radius ratio of hammer frame plate is bigger, and the outer rim poor rigidity of hammer frame plate, than being easier to take place the flexible deformation; The main shaft distance bushing axial location is leaned at the center of hammer frame plate, and the outer rim of hammer frame plate is leaned on hammer leaf spacer location, and the hammer leaf spacer also plays the effect of hammer leaf being carried out axial restraint simultaneously; And hammer leaf frequently rotates in the process of hitting material; Be there is relative motion between hammer leaf spacer and the hammer leaf, can not be completely fixed extremely that this has just caused the outer rim location of hammer frame plate bad; Distortion is unavoidable, is difficult to guarantee absolute parallel between each hammer frame plate.

Summary of the invention

The purpose of the utility model is, overcomes the problem that exists in the prior art, provides that a kind of windage is little, the rotor mill of power consumptive province.

For solving above technical problem; A kind of rotor mill that the utility model provided; Comprise the rotor main shaft that is installed in epitrochanterian a plurality of hammer leaf and is positioned at rotor center; Be fixed with the cylindrical barrel of circumferencial direction sealing on the said rotor main shaft, said cylindrical barrel and said rotor main shaft coaxial line, the excircle upper edge cylindrical shell length direction of said cylindrical barrel is equidistant to be fixed with a plurality of spacer rings; Each said spacer ring is provided with a plurality of groups of pin shaft holes, and bearing pin is plugged in each said pin shaft hole successively; Each said hammer leaf lays respectively in the interval of adjacent spacer ring, is arranged with two hammer leaf installing holes on the said hammer leaf respectively and is suspended on the said bearing pin through one of them hammer leaf installing hole.

With respect to prior art, the utility model has been obtained following beneficial effect: numerous disc hammer frame plates of the big Heavy Weight of area have been cancelled in (1), replace the cylindrical barrel of circumferencial direction sealing; Cylindrical shell is a hollow-core construction; Weight alleviates greatly, and the power consumption when both having reduced in service and braking has been practiced thrift material cost again; Reduce manufacture difficulty, shortened the manufacturing cycle.(2) save main shaft distance bushing, further alleviated weight.(3) traditional rotor, just there are two end faces in each hammer frame plate, and is provided with several hammer frame plates along the rotor axis direction; And cylindrical barrel of the present invention is rotated around self axis, and except that the regional area that hammer leaf is installed, cylindrical shell integral body does not have front face area when rotating, and only has two end faces, greatly reduces windage, has reduced the power consumption of unit finished product.(4) because hammer leaf does not have the fixing of hammer leaf spacer, in the rotor high-speed running, hammer leaf can move freely along bearing pin; In the accelerator of material whereabouts, hammer leaf can be along axially evenly hitting material, in high velocity; Because hammer leaf is distributed in the different plane; Can destroy the circulation layer that material forms in this zone, increase the relative velocity between material and hammer leaf, improve crush efficiency.(5) partition is located on the barrel wall and is highly very little, and good rigidly is not easy to deform.

As the improvement of the utility model, also be respectively equipped with subsequent use pin shaft hole on each said spacer ring, each subsequent use pin shaft hole with equating accordingly with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole and the said hammer leaf.Be arranged with two hammer leaf installing holes on the hammer leaf respectively, turn around to use when being convenient at one end wear and tear back or change hammer sieve gap, prolong the service life of hammer leaf and the product of production different fineness; Traditional rotor need be extracted bearing pin out; Making all hammer leaves break away from rotor lands; Because in a single day hammer leaf is broken each group of back and mixed easily, before the installation of turning around, must organize hammer leaf and weigh, so that the basic dynamic balance performance that guarantees to reinstall the back rotor to each; And hammer leaf is weighed and is wasted time and energy, if maintenance mans lack a sense of responsibility, it is excessive and cause unbalance serious that weight differential is respectively organized between the hammer leaf in appearance easily; In case and dynamic balancing is bad; Not only increase power consumption, and rotor is easy to damage the base bearing at armature spindle two ends especially; And the present invention is provided with subsequent use pin shaft hole, only increases a bearing pin, just can save hammer leaf fully and land the link of weighing again; When hammer leaf turns around to use, a bearing pin that increases is inserted from an end, hit the hammer leaf installing hole of holding from hammer leaf successively while inserting and pass; After new bearing pin is in place, pull up former bearing pin, promptly realized the use of turning around of hammer leaf; Whole process convenient is quick; Shortened the time of changing greatly, alleviated working strength of workers greatly, and can guarantee that rotor keeps original balance.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation, accompanying drawing only provides reference and explanation usefulness, and is non-in order to restriction the utility model.

Fig. 1 is the structural representation of beater disintegrating machine.

Fig. 2 is the front view of the utility model rotor mill.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the stereogram of Fig. 2.

Among the figure: 1 charging aperture; 2 casings; 3 rotors; The 3a rotor main shaft; The 3b cylindrical barrel; The 3c spacer ring; The 3c1 pin shaft hole; The 3d hammer leaf; 3d1 hammer leaf installing hole; The 3e bearing pin; 4 screen frames; 5 expansion chambers.

The specific embodiment

As shown in Figure 1; Beater disintegrating machine comprises casing 2, be arranged in the pulverizing chamber of casing and be arranged in the rotor 3 of pulverizing chamber, and the top of pulverizing chamber is provided with charging aperture 1, and the bottom is provided with expansion chamber 5; Between charging aperture 1 and the expansion chamber 5 screen frame 4 is installed, is fixed with the sieve sheet on the screen frame 4.

Extremely shown in Figure 4 like Fig. 2; The center of rotor 3 is provided with rotor main shaft 3a, is fixed with the cylindrical barrel 3b of circumferencial direction sealing on the rotor main shaft 3a, cylindrical barrel 3b and rotor main shaft coaxial line; Its two ends can be empty web pattern, also can be the end plate of sealing.The excircle upper edge cylindrical shell length direction of cylindrical barrel 3b is equidistant to be fixed with a plurality of spacer ring 3c, and each spacer ring 3c is provided with a plurality of groups of pin shaft hole 3c1, and bearing pin 3e is plugged among each pin shaft hole 3c1 successively; Each hammer leaf 3d lays respectively in the interval of adjacent spacer ring 3c, is arranged with two hammer leaf installing hole 3d1 on the hammer leaf 3d respectively and is suspended on the bearing pin 3e through hammer leaf installing hole wherein.

Also be respectively equipped with subsequent use pin shaft hole on each spacer ring 3c, each subsequent use pin shaft hole equates with corresponding spacing between two hammer leaf installing hole 3d1 on the spacing between the pin shaft hole of usefulness and the hammer leaf.When hammer leaf 3d need turn around to use, a bearing pin that increases is inserted from an end, hit the hammer leaf installing hole of holding from hammer leaf successively while inserting and pass, after new bearing pin is in place, pull up former bearing pin, promptly realized the use of turning around of hammer leaf.

The above is merely the preferable possible embodiments of the utility model, non-so the limitation the utility model scope of patent protection.Except that the foregoing description, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims (2)

1. rotor mill; Comprise the rotor main shaft that is installed in epitrochanterian a plurality of hammer leaf and is positioned at rotor center; It is characterized in that: be fixed with the cylindrical barrel of circumferencial direction sealing on the said rotor main shaft, said cylindrical barrel and said rotor main shaft coaxial line, the excircle upper edge cylindrical shell length direction of said cylindrical barrel is equidistant to be fixed with a plurality of spacer rings; Each said spacer ring is provided with a plurality of groups of pin shaft holes, and bearing pin is plugged in each said pin shaft hole successively; Each said hammer leaf lays respectively in the interval of adjacent spacer ring, is arranged with two hammer leaf installing holes on the said hammer leaf respectively and is suspended on the said bearing pin through one of them hammer leaf installing hole.

2. rotor mill according to claim 1; It is characterized in that: also be respectively equipped with subsequent use pin shaft hole on each said spacer ring, each subsequent use pin shaft hole with equating accordingly with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole and the said hammer leaf.

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