CN202398391U

CN202398391U - Hammer mill rotor and grinder with same

Info

Publication number: CN202398391U
Application number: CN2011205367911U
Authority: CN
Inventors: 曾国良; 程洪波; 彭奎
Original assignee: YANGZHOU SINO-EU INDUSTRIAL ROBOT Co Ltd
Current assignee: YANGZHOU SINO-EU INDUSTRIAL ROBOT Co Ltd
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-08-29
Anticipated expiration: 2021-12-20

Abstract

The utility model relates to a hammer mill rotor and a grinder with the same, which belong to the technical file of feed, grain oil and chemical machinery. The hammer mill rotor comprises a plurality of hammer sheets installed on the rotor and a rotor spindle arranged in the center of the rotor, wherein a peripherally-sealed cylindrical barrel body is fixed on the rotor spindle, the cylindrical barrel body and the rotor spindle have a coaxial line, grooves extending along the length direction of the barrel body and being in the same shape are evenly distributed on the peripheral surface of the cylindrical barrel body, partition pieces in the same shape are respectively positioned in each groove along the length direction of the barrel body in equal distance mode, each partition piece is provided with a pin shaft hole respectively, a pin shaft is inserted in each pin shaft hole respectively, each hammer piece is respectively arranged between adjacent partition pieces, each hammer piece is provided with two symmetrical hammer piece installation holes, and each hammer piece is suspended on the pin shaft through the hammer piece installation hole.

Description

Beater disintegrating machine rotor and use the pulverizer of this rotor

Technical field

The utility model relates to a kind of beater disintegrating machine rotor, also relates to the pulverizer that uses this rotor, 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.

The utility model content

The primary and foremost purpose of the utility model is, overcomes the problem that exists in the prior art, provides that a kind of windage is little, the beater disintegrating machine rotor of power consumptive province.

For solving above technical problem; The beater disintegrating machine rotor 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 external peripheral surface of said cylindrical barrel is evenly distributed with along the groove that the cylindrical shell length direction extends and the shape size is identical; Along the equidistant respectively identical partition of shape size that is provided with of cylindrical shell length direction, be respectively equipped with pin shaft hole on each said partition in each said groove, bearing pin is plugged in each said pin shaft hole successively; Each said hammer leaf lays respectively in the interval of adjacent partition, is arranged with two hammer leaf installing holes on each hammer leaf respectively and is suspended on the said bearing pin through hammer leaf installing hole wherein.

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 the cylindrical barrel of the utility model 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, each said groove is a crescent, and the outer edge of each said partition and the outer surface of said cylindrical shell are positioned on the same face of cylinder.Crescent shaped groove is superficial, as long as bearing pin can be installed, the outer edge of each partition and the outer surface of cylindrical shell are positioned on the same face of cylinder and make windage littler.

As the further improvement of the utility model, also be respectively equipped with subsequent use pin shaft hole on each said partition, each subsequent use pin shaft hole is equating with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole and the said hammer leaf with corresponding.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 utility model 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.

Another purpose of the utility model is, overcomes the problem that exists in the prior art, provides that a kind of windage is little, the beater disintegrating machine of power consumptive province.

For solving above technical problem; The beater disintegrating machine that the utility model provided comprises rotor mill, and rotor mill comprises 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 external peripheral surface of said cylindrical barrel are evenly distributed with along the groove that the cylindrical shell length direction extends and the shape size is identical, in each said groove along the equidistant respectively identical partition of shape size that is provided with of cylindrical shell length direction; Be respectively equipped with pin shaft hole on each said partition, bearing pin is plugged in each said pin shaft hole successively; Each said hammer leaf lays respectively in the interval of adjacent partition, is arranged with two hammer leaf installing holes on each hammer leaf respectively and is suspended on the said bearing pin through hammer leaf installing hole wherein.

As the improvement of the utility model, each said groove is a crescent, and the outer edge of each said partition and the outer surface of said cylindrical shell are positioned on the same face of cylinder.

As the further improvement of the utility model, also be respectively equipped with subsequent use pin shaft hole on each said partition, each subsequent use pin shaft hole is equating with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole and the said hammer leaf with corresponding.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail, 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 the utility model beater disintegrating machine.

Fig. 2 is the front view of the utility model beater disintegrating machine rotor.

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 partition; 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 external peripheral surface of cylindrical barrel 3b is evenly distributed with along the groove that the cylindrical shell length direction extends and the shape size is identical; In each groove along the equidistant respectively identical partition 3c of shape size that is provided with of cylindrical shell length direction; Groove is a crescent, and the outer edge of each partition 3c and the outer surface of cylindrical shell are positioned on the same face of cylinder.Be respectively equipped with pin shaft hole 3c1 on each partition 3c, bearing pin 3e is plugged among each pin shaft hole 3c1 successively; Each hammer leaf 3d lays respectively in the interval of adjacent partition 3c, is arranged with two hammer leaf installing hole 3d1 on each 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 partition 3c, each subsequent use pin shaft hole with equating with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole 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

1. beater disintegrating machine rotor; 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: the cylindrical barrel that is fixed with the circumferencial direction sealing on the said rotor main shaft; Said cylindrical barrel and said rotor main shaft coaxial line, the external peripheral surface of said cylindrical barrel are evenly distributed with along the groove that the cylindrical shell length direction extends and the shape size is identical, in each said groove along the equidistant respectively identical partition of shape size that is provided with of cylindrical shell length direction; Be respectively equipped with pin shaft hole on each said partition, bearing pin is plugged in each said pin shaft hole successively; Each said hammer leaf lays respectively in the interval of adjacent partition, is arranged with two hammer leaf installing holes on each hammer leaf respectively and is suspended on the said bearing pin through hammer leaf installing hole wherein.

2. beater disintegrating machine rotor according to claim 1 is characterized in that: each said groove is a crescent, and the outer edge of each said partition and the outer surface of said cylindrical shell are positioned on the same face of cylinder.

3. beater disintegrating machine rotor according to claim 1 and 2; It is characterized in that: also be respectively equipped with subsequent use pin shaft hole on each said partition, each subsequent use pin shaft hole is equating with the spacing between two hammer leaf installing holes on the spacing between the pin shaft hole and the said hammer leaf with corresponding.

4. a beater disintegrating machine comprises rotor mill, it is characterized in that: this pulverizer adopts like each described rotor mill in the claim 1 to 3.