Summary of the invention
Task of the present utility model is to provide a kind of single block hammer screening crusher that satisfies the required granularity requirements of subsequent technique and can also suppress effectively to pulverize that has the desirable ratio of reduction and only need one stage crushing just can reach.
Task of the present utility model is finished like this, and a kind of single block hammer screening crusher comprises the broken machine case body with broken working chamber that is made of left, right, front and rear casing and upper box, and wherein, the top of left box body constitutes charging aperture; One broken rotor is positioned at described broken machine case body, and is arranged on rotationally on described preceding casing and the rear box, is provided with tup with interval state pivot on this broken rotor; One is used for whole screen(ing) machine structure that the ore after the described broken rotor fragmentation is drawn, be located in the described broken working chamber, and the below corresponding to described broken rotor is characterised in that: dispose one in the outside of described left box body and at the position corresponding to described charging aperture and be used for using granularity and exempting from broken particle and introducing the pre-screen-dividing machine structure that sifts out in advance before the broken working chamber treating that broken ore is introduced described broken working chamber and simultaneously raw ore reached from charging aperture; On described left box body and towards a side of described broken working chamber, be equipped with a grid body, this grid body constitutes the gradient relation that reduces one by one highly from top to bottom successively corresponding to the below of described charging aperture between described pre-screen-dividing machine structure, grid body and the whole screen(ing) machine structure three.
In a specific embodiment of the present utility model, described pre-screen-dividing machine structure comprises a pair of pre-sub-sieve roller frame opposite each other, one group of first sub-sieve conveying roller and one group of second sub-sieve conveying roller, a pair of pre-sub-sieve roller frame is connected with the top of described left box body, and corresponding to described charging aperture, one group first, the equal pivot of the second sub-sieve conveying roller is arranged between the described a pair of pre-sub-sieve roller frame, wherein: constitute difference in height between one group of first sub-sieve conveying roller and one group of second sub-sieve conveying roller, and one group of second sub-sieve conveying roller is between described charging aperture and one group of first sub-sieve conveying roller.
In another specific embodiment of the present utility model, maintain the roll gap that falls for the particle that has reached granularity in the raw ore between described one group of first sub-sieve conveying roller, also has the roll gap that is used for having reached the particle whereabouts of granularity between described one group of second sub-sieve conveying roller for raw ore, and the surface at one group of first sub-sieve conveying roller all is intervally distributed with first flange vertically, and all is intervally distributed with second flange vertically on the surface of one group of second sub-sieve conveying roller.
In another specific embodiment of the present utility model, the cross sectional shape of described first, second flange is ellipse or peach shape.
In another specific embodiment of the present utility model, described grid body comprises coupling beam under one a group of grid and the grid, the upper end of one group of grid is formed on the grid on the coupling beam with the interval state, space between the adjacent grid constitutes charging conduit, wherein: in one group of grid, the outside of one piece of grid of first and end respectively is extended with a grid pivot, grid pivot pivot is arranged on the grid pivotal block, grid pivotal block and described broken machine case body are fixed, the middle part of coupling beam is connected with the lower end of one group of grid under the grid, and under the grid end bearing of coupling beam on first supporting seat, the inwall of first supporting seat and described preceding casing is fixed, the other end of coupling beam is supported on second supporting seat under the grid, and the inwall of second supporting seat and described rear box is fixed.
Also have in the specific embodiment of the present utility model, the surface towards last of described grid constitutes the grid step that one group of height that is used to make the upper surface of grid from top to bottom reduces one by one, and the width of described charging conduit and maximum blanking granularity adapt.
More of the present utility model and in specific embodiment, described whole screen(ing) machine structure comprises the first sieve material double-edged fine-toothed comb, the second sieve material double-edged fine-toothed comb, the a pair of first sieve material double-edged fine-toothed comb bearing support, a pair of second a sieve material double-edged fine-toothed comb bearing support and the backing roll, the first sieve material double-edged fine-toothed comb is located on a pair of first sieve material double-edged fine-toothed comb bearing support, the second sieve material double-edged fine-toothed comb is located on a pair of second sieve material double-edged fine-toothed comb bearing support, one end of one end of the first sieve material double-edged fine-toothed comb bearing support and the second sieve material double-edged fine-toothed comb bearing support is hinged, and the other end of the first sieve material double-edged fine-toothed comb bearing support is installed with hanging feet on one first, hanging feet is placed on the front beam on first, one end of front beam through hole on the casing before being opened in is stretched over outside the described preceding casing, the through hole of the other end on being opened in described rear box is stretched over outside the rear box, the other end of the second sieve material double-edged fine-toothed comb bearing support is fixed with hanging feet on one second, hanging feet is hung on the rear cross beam on second, one end of rear cross beam through be opened in described before through hole on the casing be stretched over before outside the casing, the through hole of the other end on being opened in described rear box is stretched over outside the rear box, match with the bottom of a pair of first sieve material double-edged fine-toothed comb bearing support or match with the bottom of the second sieve material double-edged fine-toothed comb bearing support in the middle part of backing roll, and an end of backing roll is stretched over outside the preceding casing, and be shelved on the preceding casing, the other end is stretched over outside the rear box, and is shelved on outside the rear box.
In of the present utility model and then specific embodiment, described first sieve is expected the two ends of double-edged fine-toothed comb and is positioned at the bottom that each constitutes one group of first chimeric bead at interval, described second sieve is expected the two ends of double-edged fine-toothed comb and is positioned at the bottom that each constitutes one group of second chimeric bead at interval, expect that a side of double-edged fine-toothed comb respectively is concaved with one group of first gomphosis groove at interval on the described a pair of first sieve material double-edged fine-toothed comb bearing support and towards described first sieve, expect that a side of double-edged fine-toothed comb respectively is concaved with one group of second gomphosis groove at interval on the described a pair of second sieve material double-edged fine-toothed comb bearing support and towards described second sieve, the quantity of the described first chimeric bead equates with the quantity of described first gomphosis groove, and position each other is corresponding, the quantity of the described second chimeric bead equates with the quantity of described second gomphosis groove, and position each other is corresponding, wherein: the first chimeric bead is embedded in first gomphosis groove, and the second chimeric bead embeds in second gomphosis groove.
Of the present utility model again more and in specific embodiment, the diameter of described maximum blanking granularity is 40-150mm.
In again of the present utility model and then specific embodiment, the quantity of described tup has three to nine groups, be three to nine five equilibriums and distribute on described broken rotor, the quantity of every group of tup equates, and respectively to organize the installation site of tup on broken rotor be identical.
The technical scheme that the utility model provides is owing to connected a pre-screen-dividing machine structure in the outside of left box body and at the position corresponding to charging aperture, by this pre-screen-dividing machine structure the particle that has met product granularity in the raw ore is sifted out, avoid that this part material is also sent into broken working chamber and participate in together fragmentation of lump ore, thereby can suppress pulverizing effectively; The grid physical efficiency is guaranteed that the coarse fodder in the broken working chamber is earlier broken and is gone out earlier, can avoid pulverizing the generation of situation equally; The utility model scheme is worked in the mode that tup hits ore, and the ratio of reduction only needs one section and just can reach E Shi or two sections to three sections ratios of reduction that just can reach of cone crusher far above Hubei Province formula or cone crusher in the prior art.Therefore, the utility model scheme not only can be saved the energy resource consumption of disintegrating machine, and helps to improve crushing efficiency ultimate attainmently.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Ask for an interview Fig. 1 and Fig. 2, the broken machine case body 1 that provides is made of left box body 11, right case 12, preceding casing 13, rear box 14 and upper box 16, and is surrounded jointly by left, right, front and rear casing 11,12,13,14 and upper box 16 and to constitute the broken machine case body 1 with broken working chamber 15.The top of left box body 11 constitutes charging aperture 111, and the top at this left box body 11 promptly is equipped with pre-screen-dividing machine structure 4 corresponding to the position of charging aperture 111, pre-screen-dividing machine structure 4 comprises a pair of pre-sub-sieve roller frame 41, one group of first sub-sieve conveying roller 42 and one group of second sub-sieve conveying roller 43, a pair of pre-sub-sieve roller frame 41 is set parallel to each other, and be connected with the top of the left box body 11 of broken machine case body 1, one group of first sub-sieve conveying roller 42 and one group of second sub-sieve conveying roller 43 are arranged between a pair of pre-sub-sieve roller frame 41 rotationally, wherein: the position of one group of first sub-sieve conveying roller 42 is than the position height of one group of second sub-sieve conveying roller 43, that is to say first, the second sub-sieve conveying roller 42, be formed with difference in height between 43, be formed with a sub-sieve feeding step in other words.One group first, the second sub-sieve conveying roller 42,43 quantity is not all because of being subjected to the restriction of quantity shown in Figure 2, the second sub-sieve conveying roller 43 is between the charging aperture 111 and the first sub-sieve conveying roller 42, that is to say, one group of first sub-sieve conveying roller 42 is positioned at the rear of one group of second sub-sieve conveying roller 43, deliver to one group of second sub-sieve conveying roller 43 by the ore of one group of first sub-sieve conveying roller 42 behind sub-sieve, to unload to the following broken working chamber 15 that also will describe in detail from charging aperture 111 through the ore behind the sub-sieve once more by one group of second sub-sieve conveying roller 43, more properly say and unload to grid body 5.
By top explanation as can be known, first, second sub-sieve conveying roller 42,43 comes down to material feeding of the present utility model and pre-screening mechanism, Given this manage, first, second sub-sieve conveying roller 42,43 can be understood as pre-sub-sieve roller, each roller is all by identical direction rotation, the ore (also can claim building stones) that is positioned on the roll surface is promoted by roller, is driven to the direction of broken working chamber 15 by storage end and send (driveing), until enter broken working chamber 15 from charging aperture 111.
All maintain the space between aforesaid one group of first sub-sieve conveying roller 42 and between one group of second sub-sieve conveying roller 43, no matter and be each roll body of one group of first sub-sieve conveying roller 42 or the surface of each roll body of one group of second sub-sieve conveying roller 43 all is intervally distributed with flange vertically.The applicant is defined as first flange 421 with the flange on one group of first sub-sieve conveying roller 42, in like manner the flange on one group of second sub-sieve conveying roller 43 is defined as second flange 431.Form and the suitable whereabouts passage of permission screen size by aforesaid flange, therefrom fall for particle, and, therefore can claim that flange is the roller dish because aforesaid flange has and promotes the function that the bed of material advances.The cross sectional shape of roller dish both can be circular, also can be ellipse or peach shape, and wherein, the running of ellipse or peach shape roller dish can make the bed of material produce the effect that pitches when advancing, and strengthened the function that particle separates from the bed of material.The number of the quantity of aforesaid one group of first sub-sieve conveying roller 42 and one group of second sub-sieve conveying roller 43 depends on the occupation rate of accept in the supplied materials, if accept ratio height, the quantity of roller is just corresponding some more so, and vice versa.In addition, the roller number is relevant with the sub-sieve of ore charge, and material is wet and contain mud for a long time, the then also corresponding increase of the quantity of roller.Above the notion of mentioned peach shape be meant the shape of the peach of fruit category.
By shown in Figure 2, in one group of first sub-sieve conveying roller 42, two rollers that occupy spout 44 belows are promptly near the impact because of the lump ore that will bear batcher with standing in the breach and be discharged into of two rollers at spout 44 places, therefore adopt the roller of reinforced structure and have vibration absorber 45, preferred vibration absorber 45 is a rubber blanket, so that several tons the lump ore of guaranteeing to weigh unloads fashionable unlikely damage roller.
As shown in the above description, the function of aforesaid pre-screen-dividing machine structure 4 is: the particle that has reached the finished product granularity requirements when ore is sent to charging aperture 111 in tcrude ore screens out in advance, and avoiding them to enter broken working chamber 15, to participate in lump ores together broken and the pulverizing situation occurred.According to known general knowledge, one group of first sub-sieve conveying roller 42 and one group of second sub-sieve conveying roller 43 are respectively driven by corresponding actuating unit.Figure 1 shows that example, drive sprocket wheel 432 on the first second sub-sieve conveying roller 43 in one group of second sub-sieve conveying roller 43 by motor through reductor, and remaining the second sub-sieve conveying roller 43 in one group of second sub-sieve conveying roller 43 by chain one by one transition connect (because all being installed with sprocket wheel 432 on each second sub-sieve conveying roller 43), the operation principle of one group of first sub-sieve conveying roller 42 is same as above.
One broken rotor 2 is arranged in the aforesaid broken machine case body 1 rotationally by the rotor spindle nose 22 at its two ends, specifically: with in a pair of rotor spindle nose 22 one of them promptly towards a rotor spindle nose 22 of preceding casing 13 bearing block support by being furnished with bearing on preceding casing 13, and another rotor spindle nose 22 promptly towards the rotor spindle nose 22 of rear box 14 equally the bearing block support by being furnished with bearing on rear box 14, and be stretched over outside the rear box, promptly be stretched over broken machine case body 1 outer (present embodiment is the rear box 14 of broken machine case body 1) and fixedly connected with the drive 6 of power drive mechanism by the keyway 221 that is provided with on it.In the present embodiment, on broken rotor 2, be provided with five groups of tups 21 with five five equilibrium pivots, certainly the group number of tup 21 is not subjected to the restriction of embodiment, for example may be as few as nine groups of three groups or as many as, in the time of three groups, then be separated by 120 ° for every group, in the time of nine groups, then every group at a distance of 40 °, and the notion of 120 ° of being said here and 40 ° all is that circumferencial direction according to the cylinder of broken rotor 2 is a benchmark.In addition, although having illustrated respectively to organize the quantity of tup 21 in the present embodiment is seven, but should not be restricted equally, because when the specification of hammer mill is big, and when the length of broken rotor 2 was long, the columns of so can corresponding increase axial tup 21 was with example, when the diameter of broken rotor 2 is big, row's number of the tup 21 on then corresponding increase rotor 2 surfaces of revolution.Each tup 21 is located on the hammer handle 212 by tup bearing pin 211, and hammer handle 212 is located on the broken rotor 2 by hammer handle axle 2121.When driving broken rotors 2 rotations by the drive 6 of power drive mechanism, then the ore sequencing that will be entered in the broken working chamber 15 by the tup on the broken rotor 2 21 hits on grid body 5 and sieve, on whole screen(ing) machine structure 3 the residue material is continued strike and sieves.
Please continue to see that Fig. 1 and Fig. 2 main broken of the present utility model are operated on the grid body 5 carries out, it is between charging aperture 111 and whole screen(ing) machine structure 3.The structure of grid body 5 is as follows: comprise coupling beam 52 under one a group of grid 51 and the grid, grid 51 is in fact just as the shape of comb, one group of grid 51 is formed on the grid on the coupling beam 511 integratedly, and the outside of the base portion (illustrated upper end) of one piece of grid of first in one group of grid 51 and end respectively is extended with a grid pivot 512, each grid pivot 512 pivot is arranged on the grid pivotal block 5121, with location status shown in Figure 1 is example, first is the upper inside wall of an end of casing 13 before also promptly the grid pivotal block 5121 of the grid pivot 512 of first piece of grid 51 is fixed on of front, and the upper inside wall of end other end of casing 13 before to be the grid pivotal block 5121 of the grid pivot 512 of last one piece of grid 51 be fixed on.Constitute charging conduit 514 between the adjacent grid 51, the width of charging conduit 514 is that the grid gap width should be able to admit maximum feed granularity, also promptly should satisfy the requirement that adapts with maximum blanking granularity, the preferred width of charging conduit 514 is 40-150mm, present embodiment is selected 70-120mm, and specifically the applying unit (user) by equipment requires to select in the 40-150mm scope according to reality.The grid gap width is decided by maximum marker size.In addition, each grid 51 towards on the surface be formed with one group of grid step 513 that one group of height that is used to make the upper surface of grid 51 reduces successively from top to bottom, for aforesaid tup 21 provides the condition that ore is impacted, and the ore that the ore that is crashed to pieces earlier promptly reaches the finished product granularity spills from aforesaid charging conduit 514 earlier, embodiment is earlier broken to go out earlier, avoids pulverizing.As seen, grid coarse crushing chamber (perhaps claiming grid coarse crushing zone) can be called in the zone of grid body 5, constitute by the adjacent part of grid body 5 with broken rotor 2, in this zone (or claiming interval), tup 21 can directly be pounded to material piece (ore), and makes to smash and reach the wide material piece of grid seam and discharge on the spot from charging conduit 514.Under the aforesaid grid promptly fixedly connected towards an end of whole screen(ing) machine structure 3 with one group of grid 51 with the lower end of one group of grid 51 in the middle part of coupling beam 52, and under the grid end bearing of coupling beam 52 on first supporting base 521, the other end is supported on second supporting base 522, wherein, first supporting base 521 is fixed with the inwall of preceding casing 13, and second supporting base 522 is fixed with the inwall of rear box 14, preferred scheme also can be coupling beam under the grid 52 and first, second supporting base 521, parallels 523 respectively is set between 522, the effect of parallels 523 can be regulated the space between the work circle of the lower end of grid body 5 and broken rotor 2, thereby control enters the ore grain size of whole screen(ing) machine structure 5.
The whole screen(ing) machine structure 3 that the utility model provides comprises one first, the second sieve material double-edged fine-toothed comb 31,32, each is a pair of first years old, the second sieve material double-edged fine-toothed comb bearing support 33,34 and one backing roll 35, promptly each constitutes one group of first chimeric bead 311 with the interval state towards the surface of the first sieve material double-edged fine-toothed comb bearing support 33 in the bottom (bottom surface) at the two ends of one first sieve material double-edged fine-toothed comb 31, each constitutes first gomphosis groove, 332 scarves on one of them first sieve material double-edged fine-toothed comb bearing support 33 in the first chimeric bead 311 and a pair of first sieve material double-edged fine-toothed comb bearing support 33 of an end of one group of first gomphosis groove, 332, the first sieve material double-edged fine-toothed combs 31 with the interval state and the upper surface of a pair of first sieve material double-edged fine-toothed comb bearing support 33 is promptly towards the surface of the first sieve material double-edged fine-toothed comb 31; And the first chimeric bead 311 and a pair of first of the other end of the first sieve material double-edged fine-toothed comb 31 is sieved first gomphosis groove, 332 scarves on another first sieve material double-edged fine-toothed comb bearing support 33 of expecting in the double-edged fine-toothed comb bearing support 33.One end of a pair of first sieve material double-edged fine-toothed comb bearing support 33 respectively is articulated and connected by the end of jointed shaft 334 with a pair of second sieve material double-edged fine-toothed comb bearing support 34, and the other end of the first sieve material double-edged fine-toothed comb bearing support 33 is installed with hanging feet 331 on one first, this on first hanging feet 331 hang on front beam 3311, through hole 131 before one end of front beam 3311 passes and is opened on the casing 13 is stretched over outside the preceding casing 13, and be shelved on the preceding casing 13, the other end passes and is opened in the through hole that is equivalent to through hole 131 on the rear box 1 and is stretched over outside the rear box 14, and be shelved on the rear box 14, promptly each constitutes one group of second chimeric bead 321 with the interval state towards the surface of the second sieve material double-edged fine-toothed comb bearing support 34 in the bottom at the two ends of the second sieve material double-edged fine-toothed comb 32, and a pair of second sieve material double-edged fine-toothed comb bearing support 34 each offers second gomphosis groove, 342 scarves on one of them second sieve material double-edged fine-toothed comb bearing support 34 in the second chimeric bead 321 and a pair of second sieve material double-edged fine-toothed comb bearing support 34 of an end of one group of second gomphosis groove, 342, the second sieve material double-edged fine-toothed combs 32 with the interval state towards the surface of the second sieve material double-edged fine-toothed comb 32; And the second chimeric bead 321 and a pair of second of the other end of the second sieve material double-edged fine-toothed comb 32 is sieved second gomphosis groove, 342 scarves on another second sieve material double-edged fine-toothed comb bearing support 34 of expecting in the double-edged fine-toothed comb bearing support 34.The other end of the second sieve material double-edged fine-toothed comb bearing support 34 is installed with hanging feet 341 on one second, this on second hanging feet 341 hang on rear cross beam 3411, before the through hole that is equivalent to aforesaid through hole 131 before one end of rear cross beam 3411 passes and is opened on the casing 13 is stretched over outside the casing 13, and the other end passes and is opened in the through hole that is equivalent to aforesaid through hole 131 on the rear box 14 and is stretched over outside the rear box 14.And as shown in the above description, the two ends of the first sieve material double-edged fine-toothed comb 31 and a pair of first sieve expect that double-edged fine-toothed comb bearing support 33 matches in chimeric mode, expect that with the two ends of example second sieve material double-edged fine-toothed comb 32 and a pair of second sieve double-edged fine-toothed comb bearing support 34 matches in chimeric mode, when needs overhaul or change first, second sieve material double-edged fine-toothed comb 31,32, they can be unloaded from first, second sieve material double-edged fine-toothed comb bearing support 33,34 respectively.What the applicant need state is: if the position of the first chimeric bead 311 on the first sieve material double-edged fine-toothed comb 31 and the position of first gomphosis groove 332 on the first sieve material double-edged fine-toothed comb bearing support 33 are exchanged; and the second chimeric bead 321 and second on the second sieve material double-edged fine-toothed comb 32 is sieved the position of expecting second gomphosis groove 342 on the double-edged fine-toothed comb bearing support 34 exchange; so; undoubtedly belong to the equivalence conversion, should belong to protection domain of the present utility model.One backing roll 35 is arranged at the bottom of a pair of second sieve material double-edged fine-toothed comb bearing support 34 in the present embodiment, the second sieve material double-edged fine-toothed comb bearing support 34 is played the support effect, promptly a pair of second sieve material double-edged fine-toothed comb bearing support 34 is supported by the middle part of backing roll 35, through hole before the roll shaft spindle nose 351 of one end of backing roll 35 passes and is opened on the casing 13 is stretched over outside the preceding casing 13, and be shelved on the preceding casing 13, roll shaft spindle nose 351 (not shown)s of the other end of backing roll 35 are passed the through hole that is opened on the rear box 14 and are stretched over outside the rear box 14, and are shelved on the rear box 14.If backing roll 35 is transplanted to the bottom of expecting double-edged fine-toothed comb bearing support 33 corresponding to first sieve, should be considered as equivalence so and replaces.
By shown in Figure 1, the outside of casing 13 has stacked first at interval before aforesaid, second cushion block 132, the 133 and the 3rd cushion block 134, therewith adaptably, rear side at rear box 14 has stacked and first too, second, the 3rd cushion block 132,133, the cushion block (not shown) of 134 equivalences, be used for raising or reducing the height of front beam 3311 corresponding to first cushion block 132 of front beam 3311, second cushion block 133 corresponding to the roll shaft spindle nose 351 of backing roll 35 is used for adjusting the height of backing roll 35, and is used to regulate the height of rear cross beam 3411 corresponding to the 3rd cushion block 134 of rear cross beam 3411.Certainly, too corresponding cushion block can be set to position corresponding to the middle part of forward and backward crossbeam 3311,3411 and backing roll 35.
And then as shown in the above description, the quantity of the quantity of the first chimeric bead 311 and first gomphosis groove 332 equate and the position corresponding; Equally, the quantity of the quantity of the second chimeric bead 321 and second gomphosis groove 342 equate and the position corresponding mutually.
Be provided with a pair of first roller 333 at the long side direction of the aforesaid a pair of first sieve material double-edged fine-toothed comb bearing support 33 and back to each pivot of a side of aforesaid broken rotor 2, equally, at the long side direction of a pair of second sieve material double-edged fine-toothed comb bearing support 34 and be provided with a pair of second roller 343 back to each pivot of a side of broken rotor 2 equally.When will be with first, the second sieve material double-edged fine-toothed comb bearing support 33,34 and take the first sieve material double-edged fine-toothed comb 31 and when taking the second sieve material double-edged fine-toothed comb 32 and from broken working chamber 15, takes out maintenance or replacing by the second sieve material double-edged fine-toothed comb bearing support 34 by the first sieve material double-edged fine-toothed comb bearing support 33, just can be by first, second roller 333,343 play booster action, for example earlier pair of guide rails is extend into the bottom of broken working chamber 15 and with first, second roller 333,343 is corresponding, make first, second roller 333,343 contact with guide rail, in order to easily and effortlessly shifting out first, the second sieve material double-edged fine-toothed comb bearing support 33,34.Taking out in first, second sieve material double-edged fine-toothed comb 31,32, earlier backing roll 35 is got from.
By above-mentioned explanation to whole screen(ing) machine structure 3 as can be known, the first sieve material double-edged fine-toothed comb bearing support 33 take the first sieve material double-edged fine-toothed comb 31 by its long side direction first on hanging feet 331 be hung on the forward and backward casing 13,14, and the second sieve material double-edged fine-toothed comb bearing support 34 take the second sieve material double-edged fine-toothed comb 32 by its on second hanging feet 341 be hung on equally on the forward and backward casing 13,14, hinged end separately of first, second sieve material double-edged fine-toothed comb bearing support 33,34 is that end that is hinged by jointed shaft 334 each other of first, second sieve material double-edged fine-toothed comb bearing support 33,34 is by backing roll 35 supportings.Be in the process of use in invention, even if tup 21 wearing and tearing shorten, then can adapt to by adjusting cushion block, specifically: the two ends of backing roll 35 and middle part used making backing roll 35 move or move down on slightly with the quantity that increases and decreases second cushion block 133, and make by the quantity that increases and decreases the first, the 3rd cushion block 132,134 and to lift on the forward and backward crossbeam 3311,3411 or descend, thereby the gap that the inner surface that still can accomplish to make first, second sieve material double-edged fine-toothed comb 31,32 and broken rotor 2 work are justified is in normal condition.
The grid section that constitutes first, second sieve material double-edged fine-toothed comb 31,32 both can be that some grid sections intert on corresponding first, second sieve material double-edged fine-toothed comb bearing support 33,34, the grate plate that also can be into piece is enclosed within on first, second sieve material double-edged fine-toothed comb bearing support 33,34, its seam of combing both can be horizontal (present embodiment), also can be (consistent) longitudinally with tup 21 beating positions, all unlikely variation that causes whole screen(ing) machine structure 3 job specification.
In the example of this enforcement, the cornerite of whole screen(ing) machine structure 3 can reach 125 °, but if the ore crushability can be better, when perhaps allowing marker size big, the cornerite of whole screen(ing) machine structure 3 can reduce.
So far, can know the implication of " screening " in the utility model title fully,, promptly original qualified certified products in the raw material (ore) are not applied fragmentation, and whole shattering process be followed all the time with fragmentation with going out by pre-screen-dividing machine structure 4 pre-sub-sieves.
The applicant sketches operation principle of the present utility model in conjunction with Fig. 1 and Fig. 2, by heavy batcher raw ore is fed to pre-screening mechanism 4 of the present utility model through spout 44, ore is given one group of second sub-sieve conveying roller 43 by one group of first sub-sieve conveying roller 42 transition of pre-screening mechanism 4, and then introduce on the grid bodies 5 at charging aperture 111 by the second sub-sieve conveying roller 43, tup 21 for broken rotor 2 hits, grid body 5 has shape of progressively shrinking wide at the top and narrow at the bottom, make big massive ore progressively fragmentation diminish, and all grid slit widths that reached are that the particle of the width of aforesaid charging conduit 514 can both be immediately discharged from charging conduit 514 in whole process.The remaining ore of discharging granularity that do not reach as yet enters the preceding double-edged fine-toothed comb of whole screen(ing) machine structure 3 of broken rotor 2 belows promptly the first sieve material double-edged fine-toothed comb 31 and back double-edged fine-toothed comb continues to be subjected to the strike of the tup 21 on the broken rotor 2 promptly on the second sieve material double-edged fine-toothed comb 32.And in this process also be with broken with row, unlikely delay.
In a word, the technical scheme that the utility model provides has reached goal of the invention, has embodied the technique effect that the applicant gets the phase.