CN1988957A

CN1988957A - Vertical shaft impact crusher

Info

Publication number: CN1988957A
Application number: CNA2005800245737A
Authority: CN
Inventors: 河龙干
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-24
Filing date: 2005-05-23
Publication date: 2007-06-27
Also published as: KR100545788B1

Abstract

A vertical shaft impact crusher is provided to maximize the lifetime of a rotor while to effectively crush the target objects. The vertical shaft impact crusher, comprising a rotating body positioned at a rotating shaft and to which target objects are introduced from upwards, wherein a protective layer is formed inside the rotating body such that the introduced target objects are gradually enlarged in diameter along an upward direction of the rotating body by the rotating movement of the rotating body, thereby forming an inner surface thereof with a sectional shape of funnel. Further, another vertical shaft impact crusher is provided, comprising an upper rotating body positioned on a rotating shaft, and a lower rotating body positioned below the upper rotating body, wherein a lower protective layer is formed inside the lower rotating body such that the target objects introduced from the upside are gradually enlarged in diameter along an upward direction of the lower rotating body by the rotating movement of the lower rotating body, thereby forming an inner surface thereof with a sectional shape of funnel, wherein an upper protective layer is formed such that the target objects escaped from the lower protective layer are moved along an inside height of the upper rotating body, wherein the diameter of the upper protective layer is larger than the lower protective layer, and wherein the upper protective layer is formed in an inverse funnel shape relative to that of the lower protective layer.

Description

Vertical shaft impact crusher

Technical field

The present invention relates to a kind of vertical shaft impact crusher, more specifically to a kind of life-span that is configured to farthest to increase rotor simultaneously effectively fragmentation treat the vertical shaft impact crusher of broken object.

Background technology

This area is known that usually impact crusher is a kind ofly to be used for impact body collision by making high relative velocity on target object and the device of broken target object, and it is divided into trunnion axis impact crusher and vertical shaft impact crusher usually.

The trunnion axis impact crusher be a kind of impact body that is used to clash into target object be connected on the feathering axis with bump and broken from top the time with the device of the object of rotation at a high speed.Machines such as beater grinder belong to this disintegrating machine usually.This disintegrating machine has simple structure, is worn at short notice but shortcoming is impact body.For example, reach 20 hours-30 hours the time when this disintegrating machine is used to broken general stone, its impact body just is worn fully.

Therefore, the trunnion axis impact crusher only is used to for example lime stone of broken target object with soft.

Vertical shaft impact crusher is divided into two kinds again, and a kind of have a protective layer of being made by the object of for example stone and so on its rotor inner wall, and another kind of do not have protective layer on its rotor inner wall.

Fig. 1 is the cutaway view of vertical shaft impact crusher of the prior art, and Fig. 2 is the perspective view of the rotor of impacting shaft.Especially; the rotor that does not have protective layer according to prior art has and the similar structure of the impeller of centrifugal liquid pump usually; make rotating shaft 800 rotatably vertically mounted thereto, and rotor 802 and driving pulley 804 are installed in the above and below of rotating shaft 800 respectively by the bearing (not shown).

Radial arrangement four or five support plates 808 on working rotor platform 806, the heavy rotor liner plate 810 (being called as brake shoe) that abrasion resistant cast steel is made is connected on the described support plate.

The peripheral speed scope of rotor 802 from 30 meter per seconds in when operation to 90 meter per seconds.In the outside of rotor 802 and with interval, the heavy stator of making by a large amount of abrasion resistant cast steels 812 with circular arrangement in crusher shell 814.

In this vertical shaft impact crusher, in the time of in the target object as stone is imported into the hopper 816 that is installed in rotor 802 tops, the middle part of target object contact rotor 802, steadily quickened also therefore by high speed rotor rotated liner plate 810 bumps and broken, and be discharged from last and impinge upon on the stator of circularly arranging 812, obtain fragmentation thus once more.Subsequently, the broken piece of target object is discharged downwards.

This vertical shaft impact crusher that does not have protective layer has very high crushing efficiency because of the bump operation of directly finishing target object.Simultaneously, this disintegrating machine can broken 100 millimeters or bigger relatively large target object.Yet owing to operated by serious wearing and tearing by the rotor plate 810 of target object high-speed impact, therefore the problem that produces is to become quite short its life-span.

When fragmentation comprised the general stone of silica of about 60% content, the life-span of rotor liner plate (brake shoe) 810 was no more than tens hours.Compare with the life-span of the liner plate of dissimilar disintegrating machine, for example the life-span of gyratory crusher reaches 1000 hours or more, and the life-span of vertical shaft impact crusher is quite short as can be seen.

In order to solve wear problem, proposed to have the vertical shaft impact crusher of protective layer to the rotor liner plate.

Fig. 3 is the cutaway view that has the vertical shaft impact crusher of protective layer according to prior art, and Fig. 4 is the perspective view of its rotor.This disintegrating machine has two kinds of protective layers, i.e. stone cover.First stone cover 902 is arranged on the stator 900, and second stone cover 906 is arranged in the rotor 904.First stone cover 902 on the stator 900 forms tilted shape because of the internal friction angle of gravity effect and stone cover moulding material, and stone cover inner surface is made funnel shaped ordinary construction thus.

Second stone on the rotor 904 cover 906 is formed on the support plate 908 through deposition by centrifugal force.At this, what determine deposition shape is the internal friction angle of deposition building stones.

If angle of friction is big, then form sharply crooked sedimentary pile, if angle of friction is little, then form crooked gradually sedimentary pile.Internal friction angle is determined by the building stones shape usually.That is to say that if shape is round, then internal friction angle becomes littler, if shape is a dihedral, then internal friction angle becomes bigger.

First stone on the stator 900 overlaps 902 crooked covering stators 900, the feasible bump that suffers the high-speed target object without any the part of stator 900.Then therefore stationary part has the life-span of prolongation.Yet second stone cover 906 on the rotor 904 does not provide enough protection to external impact.Weak spot is the terminal distal tip 910 of stone cover.

When being imported into from hopper 912, target object is clashed into and is at first overlapped 906 fragmentations by being formed on epitrochanterian second stone, discharges subsequently to be accelerated simultaneously from rotor 904.In accelerator, the target object under pretending firmly is subjected to the impact that stone cover 906 impacts and be subjected at last distal tip 910, therefrom discharges subsequently.

If broken piece is enough little, about several millimeters of size, then when broken piece impinged upon on the distal tip 910, distal tip only was worn and can not ruptures.Yet when if broken piece is of a size of tens millimeters, distal tip is worn continuously and by impact failure, makes its life-span be shortened.

In order to improve the 910 abrasionproof life-spans of distal tip, be inserted in the distal tip 910 by hard metal board-like element, but it when increasing, broken piece size ruptures rapidly.Therefore, usually in the vertical shaft impact crusher of this rotor 904 with this type of shape, utilize the sieve screening and remove 40 millimeters or bigger target object, only supply with the target object under this size.

Simultaneously be subjected to above-mentioned restriction dimensionally even target object is imported into, distal tip 910 also is worn to a certain extent continuously, thereby its life-span is shortened.According to the long-term test of using the company of this disintegrating machine always, the distal tip common 1 or 2 of hard metal just should be changed in week.

In addition, another factor of damaging rotor 904 be by the cover of the stone on the stator 900 902 bumps and broken target object disperses and collision on the external peripheral surface of rotor 904.

Target object translational speed after the stone cover 902 of bump stator descends and falls under the normal condition.Yet having a kind of phenomenon is that some target objects rebound to rotor 904, thereby bumps with the external peripheral surface of high speed rotor rotated.Therefore, the problem that causes of this phenomenon is that rotor 904 ruptures gradually and scraps at last.

As mentioned above, the performance that disintegrating machine of the prior art is limited because of wearing and tearing have, thus the size of pending target object also is restricted.

Summary of the invention

Technical problem

Therefore; the present invention is intended to solve the above problem that exists in the prior art; and the purpose of this invention is to provide a kind of vertical shaft impact crusher; wherein obviously improve the life-span of parts simultaneously for equal even broken effectively little and big target objects, on rotor, form have complete defencive function protective layer to improve the life-span of rotor.

Advantageous effects

According to vertical shaft impact crusher of the present invention; on rotor, form the protective layer of tilted shape; make the inside of rotor avoid fully contacting the wearing and tearing that produced with target object; and the circumferential surface of rotor also avoids discharging up or down from rotor because of target object the impact of the target object that produces fully, farthest increases the life-span of rotor thus.

Description of drawings

Among the figure:

Fig. 1 is the cutaway view of vertical shaft impact crusher of the prior art, and Fig. 2 is the perspective view of the rotor of impacting shaft;

Fig. 3 is the cutaway view that has the vertical shaft impact crusher of protective layer according to prior art, and Fig. 4 is the perspective view of its rotor;

Fig. 5 is the cutaway view according to the vertical shaft impact crusher of first embodiment of the invention;

Fig. 6 is the cutaway view along the intercepting of the line A-A among Fig. 5;

Fig. 7 is the cutaway view along the intercepting of the line B-B among Fig. 8, and expression is according to the vertical shaft impact crusher of second embodiment of the invention;

Fig. 8 is arranged on the plane according to the following rotary body of the rotor on the vertical shaft impact crusher of second embodiment of the invention, and the loam cake that is in rotor is removed the state that only stays its underframe simultaneously;

Fig. 9 is the cutaway view according to the vertical shaft impact crusher of third embodiment of the invention;

Figure 10 is the perspective view according to the rotor leg of third embodiment of the invention;

Figure 11-13 is arranged on the schematic diagram according to the epitrochanterian distortion protective layer of vertical shaft impact crusher of the present invention;

Figure 14 is arranged on the schematic diagram according to the epitrochanterian protective layer of vertical shaft impact crusher of the present invention; And

Figure 15 is the schematic diagram of the vertical shaft impact crusher of fourth embodiment of the invention.

The concise and to the point description of Reference numeral

1,100: rotor 2: axle

3,300,320: protective element 4: shell body

5: loam cake 6: hopper

7: bear box 8: belt pulley

12: protuberance 13: rotary body

14: fastening bolt 15: cover cap

16: protective layer 31: supporting leg

41: top 42: step portion

43: the protective layer that is used for stator

61,610: carrier pipe 62: anti-scatter

71: bearing 72: supporting leg

112: loam cake 113: go up protective layer

120: following rotary body 121: rotating disc

123: lower protective layer 130: fastening bolt

140: rotor leg 141: connecting plate

160: the protective layer deformation block

200: axle 210: go up rotary body

215: rotary body 310: go up guard section

320: following guard section 500: loam cake

701: protective layer shaping piece

702: height adjustment hole 703: impact block

Specific embodiment

The unequal protection layer that has the infundibulate cross sectional shape by formation inner surface on rotor is realized the vertical shaft impact crusher that the present invention proposes.Utilization is formed on epitrochanterian unequal protection layer; the inside of rotor is avoided wearing and tearing fully; and the circumferential surface of rotor also avoids discharging up or down from rotor because of target object the impact of the target object that causes fully, the cover element that therefore is used for the rotor external peripheral surface fixed installation that can rotate.

Thereby vertical shaft impact crusher of the present invention is configured to comprise the shell body as framework identical with vertical shaft impact crusher of the prior art, is bearing in the rotating shaft bearing housing of bottom in the shell body, the high speed rotor rotated that links to each other with the top of rotating shaft, be used to drive rotor belt pulley, be used for supplying with the hopper of target object and being used for the skewed slot part of closure shell body and the loam cake on top to rotor.

Form stator by the target object that is collected in the shell body internal upper part, and impinge upon on the described stator from the target object that rotor high-speed takeoffs.For this stator, can adopt conventional antifriction metal (AFM) anvil.Characteristic of the present invention is rotor and the related peripheral device with unequal protection layer.

To be described in detail as follows technical characterictic of the present invention:

Vertical shaft impact crusher of the present invention comprises at least one rotary body that is positioned on the rotating shaft; target object is incorporated into this a rotating body from the top; wherein be formed with a protective layer in the inboard of corresponding rotary body; thereby the target object of introducing enlarges on diameter gradually in the discharge direction of the lower edge rotary body that rotatablely moves of rotary body, thereby forms the inner surface that it has the infundibulate cross section.

Vertical shaft impact crusher of the present invention is embodied as three specific embodiments, will be described in detail as follows them:

At first, with reference to the Fig. 5 that represents vertical shaft impact crusher with cutaway view the first embodiment of the present invention is described.

The present invention relates to a kind of vertical shaft impact crusher; it comprises the rotary body 215 that is positioned on the rotating shaft; it is used to hold the target object that imports from above; and be formed on protective layer 16 in the rotary body 215; wherein protective layer 16 has the infundibulate inner surface, and the target object of importing is by the enlarging gradually to diameter upward along rotary body 215 that rotatablely move of rotary body 215.

In addition, anti-scatter 62 is installed on the rear surface of hopper-bottomed bin, is used to import the target object in the rotary body 215, does not get back in the rotary body 215 thereby can not make target object depart from rotary body 215.

Fig. 6 is the cutaway view along the intercepting of the line A-A among Fig. 5.Specifically, protective element 3 is set, it extends downwards and has an annular shape bigger than the diameter of rotary body 215 from the top equal-height position with rotary body 215.Protective element 3 be set be the target object of scattering for the circumferential surface that prevents rotary body 215 can not departed from the protective layer 16 that forms on the rotary body 215.

Below, more specifically describe with reference to Fig. 5 and 6 pairs of first embodiment of the present invention.

Rotor 1 is funnel shaped on the whole, and wherein infundibulate rotary body 215 is formed on top and protuberance 12 is formed on the bottom 11 of round rotor to link to each other with axle 2.

Rotor 1 links to each other with axle 2 by fastening bolt 14, and cover cap 15 capping fastening bolts 14 are in case its wearing and tearing.

Reference numeral 16 expressions on rotary body 215 are formed on epitrochanterian protective layer.Protective layer 16 is constructed such that treats the gathering stably under action of centrifugal force of broken granule and oarse-grained target object and various fine clay composition, thereby even rotor 1 stops, its shape also can be maintained.

The circumference of upper rotor part 1 is fixing and be bearing on the shell body 4 by supporting leg 31 around, described protective element by protective element 3.

The top 41 of the shell body 4 of disintegrating machine is formed with the step portion 42 bigger than the lower diameter of shell body, makes the protective layer 43 that is used for stator be formed on the shell body 4 and assembles target object with tilted shape simultaneously.Simultaneously, the top of loam cake 5 closure shell bodies 4, and hopper 6 is connected the center of loam cake 5.

Target object carrier pipe 61 is connected the lower end of hopper 6.Connect anti-scatter 62 so that the target object of irregular scattering is got back in the rotor 1 on the hopper rear surface above target object carrier pipe 61, and prevent that scattering target object broken on the stator protective layer from importing in the rotor.

Axle 2 is by bearing 71 and bear box 7 swivel bearings, and wherein bear box 7 is fixed and is bearing on the shell body 4 by supporting leg 72.Reference numeral 8 expressions of not explaining are used to drive the belt pulley of rotating shaft 2.For convenience, not shownly be used to prevent that dust from entering the detailed structure of the labyrinth of bearing 71.

Below, will the operation of vertical shaft impact crusher of the present invention be described.

At first, target object (stone) is directed near the middle part of high speed rotor rotated by carrier pipe 61.In rotary body 215, protective layer 16 is formed by the target object that is deposited as the funnel-shaped surface shape, with the inside of tight covering rotary body 215.

Therefore, the target object of importing obtains rotary speed and is impacted near the middle part of rotation protective layer 16 simultaneously, and they closely contact with protective layer 16 under action of centrifugal force simultaneously.

Then, the speed that equates basically of target objects acquisitions that closely contacts with protective layer 16 and protective layer 16.The centrifugal force of supposing target object is pressed against protective layer 16 is F, F be divided into the vertical stress component F2 vertical with protective layer 16 and with the horizontal component F1 of protective layer 16 levels.

F1 is used for along drawing target object on the inclined surface of protective layer 16, and F2 produces frictional force, thereby produces reactive new frictional force on the direction relative with F1.Yet because this frictional force is less than F1, so target object is pulled upwardly along the inclined surface of protective layer 16.

Along with the inclined surface of target object along protective layer 16 is pulled upwardly, the diameter of unequal protection layer increases.Therefore, the peripheral speed of the target object that closely contacts with inclined surface under the effect of frictional force becomes bigger, obtains the speed that equates basically with the largest circumference speed of rotary body 215 at last when they leave rotary body 215 in the upper end of rotor 1.Target object is compared relatively low along the rate of climb of inclined surface with its peripheral speed.

The high-speed target object that leaves from rotary body 215 is reduced with also broken so speed by stator protective layer 43 bumps that formed by the target object that deposits.Subsequently, Po Sui target object falls by shell body 4 with around the annular space between the protective element 3 of rotary body 215 outsides.

When the bump of target object by stator protective layer 43 is broken; in them some show irregular scattering state; but they can not impinge upon on the circumference of rotor 1 by protective element 3, thereby the circumference of rotary body 215 can not suffer the destruction of similar wearing and tearing.This point is discharged from the end of rotary body 215 because of target object becomes possibility.

That is to say that if conventional vertical shaft impact crusher, target object is discharged by the circumferential surface of rotor, makes and can not protective element be installed in case the circumferential surface of spline suffers the bump of target object piece basically.Therefore, in the prior art, do not have the method that is used to prevent target object piece bump rotor circumference surface, thereby the circumferential surface of rotor impinges upon by the target object piece on the circumferential surface of high speed rotor rotated by heavy wear.

Therefore, although the circumferential surface of rotor applies the annealing hard material, the problem that produces is that this circumferential surface should periodically obtain repairing, and perhaps rotor itself should be scrapped.

Below, with reference to the Fig. 7 that represents vertical shaft impact crusher with cutaway view the second embodiment of the present invention is described.

The structure that constitutes second embodiment of the invention comprises the last rotary body 210 that is positioned on the rotating shaft; and be positioned at following rotary body 120 below the rotary body 210; wherein at the following rotary body 120 inner lower protective layers 123 that form; make from target object the enlarging gradually to diameter upward of upside importing by rotary body 120 under the edge that rotatablely moves of following rotary body 120; form the inner surface that it has the infundibulate cross sectional shape thus; wherein going up protective layer 113 is formed and makes the target object of discharging from lower protective layer 123 move along the internal height of last rotary body 210; the diameter of last protective layer 210 is greater than lower protective layer 120, and upward protective layer 113 forms the shape of falling the infundibulate with respect to lower protective layer 123.

Hole 112 is formed on the top of rotary body 210 and middle part therefrom guiding target object, and goes up protective layer 113 and be formed in the rotary body 210.The shape of last protective layer 113 is determined by the internal friction angle between centrifugal force and the target object.Last protective layer 113 is constructed such that treats the gathering stably under the action of centrifugal force of

rotary body

210 and 120 of broken granule and oarse-grained target object and various fine clay composition; even thereby after

rotary body

210 and 120 stopped under the situation of non-fracture, its shape also can be maintained.

Form protuberances 122 downwards being connected from rotating disc 121, and rotary body 120 is installed upwards with formation lower protective layer 123 from rotating disc 121 down with axle 200.

The vertical shaft impact crusher operation that more than has two protective layers is as follows: at first, when target object imported in the rotor 100 by hopper 600 and carrier pipe 610, target object at first impacted the middle part of lower protective layer 123.Target object obtains rotary speed by bump, moves up and quickens along the inclined surface of lower protective layer 123, simultaneously by closely contacting with inclined surface under centrifugal action, discharges from lower protective layer 123 at last.

The acceleration operation of the target object among first embodiment in this operation and Fig. 5 is identical.The target object that leaves lower protective layer 123 be subjected to again protective layer 113 top bump and be accelerated subsequently, under action of centrifugal force, closely contact simultaneously with last protective layer 113.Then, target object is accelerated simultaneously along the inclined surface of last protective layer 113 and rolls down, and leaves rotary body 210 in the lower end of last protective layer 113 at last.

The target object that leaves rotary body 210 is broken by impinging upon on the stator protective layer 43 that is formed on the step portion 42, and speed reduction is subsequently discharged downwards in the mode the same with first embodiment.

The target object that departs from rotary body forms stator protective layer 43 on the stator so that speed reduces and assembles thereon thus by impinging upon, and the target object that departs from stator protective layer 43 falls.

The rotor 100 that is made of last rotary body 210 and following rotary body 120 is being constructed such that on the feature that protective layer and lower

protective layer

113 and 123 are overlapped; thereby the height of rotor 100 is less than the total length of

protective layer

113 and 123, and the height of disintegrating machine is discharged on the whole significantly reduction because of target object downwards from rotor 100.

Therefore, significantly reduce in order to make the size on the vertical length direction of disintegrating machine of the present invention, last rotary body 210 is oriented to overlap with the internal height of following rotary body 120, thereby last protective layer and lower

protective layer

113 and 123 are mutual and overlapping based on horizontal reference.

Rotor 100 according to the impact crusher of second embodiment of the invention is configured to comprise rotary body 210 and following rotary body 120.Last rotary body 210 and following rotary body 120 are made separately and processing, and interconnect by fastening bolt 130 subsequently.For this reason, as shown in Figure 8, a plurality of rotor legs 140 rotate up the lower horizontal of body 210 and extend so that last rotary body and following rotary body interconnect from the bottom of descending rotary body 120.The rotor leg comprises 3-6 rotor leg.

The end of rotor leg 140 terminates into rectangle connecting plate 141, and its outer surface accurately is processed into corresponding with the curvature of the inner surface of the bottom of last rotary body and forms the hole to engage fastening bolt 130 on this outer surface.

In the outside of last rotary body and following

rotary body

210 and 120, protective element 300 is installed on the loam cake 500 to prevent that rotary body from suffering the bump of the target object piece of scattering.Protective element 300 is by constituting with following guard section 320 by the removably interconnective guard section 310 of going up of bolt.Protective element 300 is formed along the overall height annular bigger than the diameter of last rotary body 210 that comprises rotary body and following

rotary body

210 and 120, and the circumferential surface that prevents rotary body and following rotary body thus suffers the bump of the target object of scattering.

Simultaneously, although target object scattering at random on lower protective layer 123, they are quickened exactly and discharge and can not be discharged to the outside by the loam cake 112 of rotor.

Fig. 9 is the cutaway view according to the vertical shaft impact crusher of third embodiment of the invention.Specifically, last rotary body and following

rotary body

210 and 120 are made separately, and adopt a plurality of vertical rotor legs 140 to be mutually permanently connected.

The inner circumferential edge that a plurality of rotor legs 140 rotate up a side of body from the following outer circumferential edges of a side of rotary body extends so that go up rotary body and following rotary body is mutually permanently connected.More particularly, with reference to Figure 10 of perspective view of the rotor leg of expression third embodiment of the invention, a plurality of rotor legs 140 rotate up body 210 from the top of rotary body 120 down upper vertical is extended so that go up rotary body and following rotary body is mutually permanently connected.Rotor leg 140 comprises 3-6 rotor leg.

The end of rotor leg 140 is formed with and is used for bolted internal thread hole, and fastening bolt is fixed by this hole and is threaded.Operation to disintegrating machine with rotor leg describes; in the time of in importing rotor 100; target object impinges upon the middle part of lower protective layer 123; be accelerated; simultaneously along rolling on the inclined surface of protective layer to leave lower protective layer 123; the space that limits by the spacing by rotor leg 140 impinges upon the top of protective layer 113 subsequently, forms thus to go up protective layer 113.

Figure 11-13 is arranged on plane and the amplification view according to the epitrochanterian protective layer deformation block of vertical shaft impact crusher of the present invention respectively; wherein protective layer deformation block 160 is installed in the sweep of the top of rotary body 120,215 and 210 with the protective layer of formation rotary body.Because the installation of protective layer deformation block 160, target object are to deposit owing to deformation block 160 rather than other protective layers 16 more, thereby form protruding distortion protective layer 161.

The effect that the distortion protective layer 161 of above-mentioned bending provides is even that when target object has relatively large size, they also can obtain fragmentation effectively in rotor and their acceleration operation is improved.Deformation block 160 can be installed in the middle part of rotor rather than the top of rotor shown in Figure 13.

The target object that departs from the protective layer that forms on the rotary body shown in the present invention first to the 3rd embodiment forms stator protective layer 43 at step portion 4 places on the top of shell body 4, prevents to form wearing and tearing by this protective layer under the bump of the heavy metal piece that departs from rotary body.

Be used for forming the rotary body 215,120 of protective layer 16,113 and 123 on according to the rotary body 215,120 and 210 of above first to the 3rd embodiment and 210 shape is divided into two kinds of forms.

First kind of form is the infundibulate shape, and wherein rotary body 215,120 and 210 internal diameter be along upward to identical, and protective layer 16,113 and 123 is formed the discharge direction enlarged-diameter along target object on rotary body, to form the infundibulate shape thus.

Second kind of form is another infundibulate shape shown in Figure 14, wherein rotary body 215,120 and 210 internal diameter form along target object upward to the infundibulate shape of enlarged-diameter.In this case, protective layer shaping piece 701 is integrally formed to form protective layer 16,113 and 123 on rotary body 215,120 and 210 with the end of rotary body 215,120 and 210.

Alternatively, protective layer shaping piece 701 can be made separately, thereby is easy to if desired it is replaced with new protective layer shaping piece, because point rather than other parts that the end of rotary body is a target object departs from and might wear and tear.Protective layer shaping piece 701 has at least one height regulating tank 702 of regulating its height.

Figure 15 is the cutaway view according to the vertical shaft impact crusher of fourth embodiment of the invention, below will be described.

In the 4th embodiment; a plurality of wear-resisting impact blocks 703 are connected the inboard on the top of shell body 4; thereby the target object that departs from the protective layer of rotary body clashes into thereon; and in first to the 3rd embodiment; stator protective layer 43 is formed on the step portion 42 on the top of shell body 4, thereby prevents that this step portion is subjected to departing from the bump of the heavy metal piece of rotary body.In the 4th embodiment, do not form the stator protective layer, target object is fractured into piece and by impinging upon on the impact block 703.

Although invention has been described and diagram with reference to the preferred embodiments of the present invention at this, it will be apparent for a person skilled in the art that without departing from the spirit and scope of the present invention and can make various deformation and change it.Therefore, intention makes the distortion of the invention in accessory claim and its equivalence requirement and changes and all is included in the scope of the present invention.

Claims

1. vertical shaft impact crusher; comprise and being positioned on the rotating shaft with at least one rotary body that receives the target object that imports from above and the protective layer that is formed on corresponding a rotating body; wherein; because the target object that imports enlarges along the discharge direction diameter of rotary body gradually by rotatablely moving of rotary body, therefore described protective layer has the infundibulate inner surface.

2. vertical shaft impact crusher; comprise and being positioned on the rotating shaft with rotary body that receives the target object that imports from above and the protective layer that is formed on a rotating body; wherein; because the target object that imports rotatablely moves along the enlarging gradually to diameter upward of rotary body by rotary body, therefore described protective layer has the infundibulate inner surface.

3. vertical shaft impact crusher; comprise the last rotary body that is positioned on the rotary body; and be positioned at following rotary body below the rotary body; wherein; following a rotating body form lower protective layer make the target object that imports from above by rotary body down rotatablely move along under the enlarging gradually to diameter upward of rotary body; form the inner surface that it has the infundibulate cross sectional shape thus; protective layer makes the target object of discharging from last protective layer move along the internal height of last rotary body in the formation; the diameter of last protective layer is bigger than lower protective layer, and last protective layer forms the shape of falling the infundibulate with respect to lower protective layer.

4. according to any described vertical shaft impact crusher among the claim 1-3, it is characterized in that the bump of the target object by departing from the rotary body protective layer forms protective layer regularly.

5. vertical shaft impact crusher according to claim 3 is characterized in that, last rotary body is oriented to overlap with the internal height of following rotary body, thereby it is overlapped on vertical length direction with lower protective layer to go up protective layer.

6. vertical axis impact crusher according to claim 3, it is characterized in that, a plurality of rotor legs rotate up the inner circumferential edge extension of a side of body from the outer circumferential edges of a side of following rotary body, perhaps a plurality of rotor legs rotate up the upper vertical extension of body from the top of following rotary body, thereby the last rotary body of independent manufacturing and following rotary body are mutually permanently connected.

7. according to any described vertical axis impact crusher among the claim 1-3, it is characterized in that the internal diameter of rotary body is along the constant formation of its internal height.

8. according to any described vertical axis impact crusher among the claim 1-3; it is characterized in that; the internal diameter of rotary body is formed along the infundibulate shape of the discharge direction enlarged-diameter of target object, and protective layer shaping piece one or the end that removably is connected rotary body are to form protective layer.

9. vertical axis impact crusher according to claim 2, it is characterized in that, also comprise the protective element that forms the annular shape bigger than the diameter of rotary body downwards in the mode of extending from the upper height of rotary body, the circumferential surface that is used to prevent rotary body suffers the bump of the target object of scattering.

10. vertical axis impact crusher according to claim 9 is characterized in that, protective element links to each other with the shell body of disintegrating machine and supports thereon.

11. vertical axis impact crusher according to claim 3, it is characterized in that, also comprise the protective element that forms along the bigger annular shape of the diameter of rotary body on the whole aspect ratio of last rotary body, the circumferential surface that is used to prevent rotary body suffers the bump of the target object of scattering.

12. vertical axis impact crusher according to claim 2 is characterized in that, also comprises the anti-scatter that is connected on the hopper-bottomed bin rear surface, described hopper is formed target object is imported rotary body.

13. according to any described vertical axis impact crusher among the claim 1-3, it is characterized in that, also comprise a plurality of protective layer deformation blocks that are installed in each rotary body inside or end.

14. vertical axis impact crusher according to claim 8 is characterized in that, protective layer shaping piece has at least one height regulating tank of regulating its height.

15., it is characterized in that according to any described vertical axis impact crusher among the claim 1-3, also comprise a plurality of antifriction alloy impact blocks that are connected the shell body upper inner, make the target object that departs from the rotary body protective layer clash into thereon.