CN1065605A

CN1065605A - Concrete deck pulverizer

Info

Publication number: CN1065605A
Application number: CN91111224A
Authority: CN
Inventors: K·R·拉邦提
Original assignee: LaBounty Manufacturing Inc
Current assignee: LaBounty Manufacturing Inc
Priority date: 1991-04-10
Filing date: 1991-11-25
Publication date: 1992-10-28
Also published as: MX9102275A; DE4201622A1; ITTO910727A1; AU1236492A; BE1004775A6; ITTO910727A0; WO1992018708A1; FR2675185A1

Abstract

A kind of heavy duty mobile concrete deck pulverizer that is attached on portable power equipment hanging rod structure and the hydraulic system has the elongated frame with two ends.Frame one end is fixed with an auxiliary assembly unit, so that type is assembled on the hanging rod structure.The a pair of gnathosoma that has a plurality of concrete gear shaping plates that face with each other interconnects swingably.Two jaws with respect to the prolonging direction offset mounting of frame in the other end of frame, making wherein, a gnathosoma can be orientated under machined surface to be pulverized in the exercises of suspension rod arm configuration.A hydraulic cylinder is housed on the frame, is connected with one of them gnathosoma.

Description

Concrete deck pulverizer

The present invention relates to a kind ofly be attached to the hanging rod structure of portable power equipment and the heavy duty mobile rigid pavement on the hydraulic system smashes device.

More particularly, to smash device be concrete deck pulverizer on a kind of facility that can be attached to such as excavator or backhoe in above-mentioned rigid pavement.This grinder has a frame supporting a jaw structure of grinder uniqueness in the mode with respect to frame self offset mounting, makes the grinder can be in level processing general work in all exercises of hanging rod structure.

When the large-scale structure of reconstruction filled the soil of having opened up, the demolition operation had often accounted for most workload.That is to say,, often will demolish and remove some buildings, bridge, road surface, airport, smelter and other outmoded equipment for to the alteration work open circuit.Such problem is arranged here: the rule of management of associated danger goods and materials and land fill and practice of construction condition are not allowed and are conformed to the principle of simplicity to handle the structure of bulk through demolition.Optimal situation is, the volume of these structure is reduced significantly, so both can reclaim some metal, can reuse again through the bulk material (for example concrete) of the crushing backfill or the roadbed that gathers materials as road etc.

With relevant processing objects to be dwindled such as building, bridge, road surface, smelters, it is formed and shape is diversified.What often run into is concrete, and it also can add reinforcing bar usually, makes various bridge floors, flooring, sidewalk, wall or the like.Pitch also can be used.These processing objects, some may be at bottom, and some may will touch machined surface and can have any problem at high level under this occasion, and the constructor is placed in to demolish operation around its neutralization abnormally dangerous.Processing object also may be some structural metallic materials of not crushing, for example beam, channel-section steel, reinforcing bar, sheet material, sheet material, tubing, bar, cable, member and old metal etc. usually.

Therefore, for the demolition of assisting structure, through the collection of the rubbish of demolition and chip with through the processing of crushing material, so that reuse or reclaim, the someone develops and variously is attached to that portable engine has ancillary service such as excavator and backacter.License to the United States Patent (USP) 4,519,135th of LaBounty 1985 month May 28, about a kind of patent of metal demolition shearing machine.This shearing machine is to be used for specially demolishing, shred and handle can crushing and structural meterials that some are not crushed, comprises beam, channel-section steel, sheet material, tubing, bar and other old metal.This shearing machine mainly relies on shearing or tearing material to be done broken.Licensed to the United States Patent (USP) 4,838,493rd of LaBounty on June 13rd, 1989, can crushing or the concrete breaker of friable material or processing object about a kind of being applicable to.But but this breaker grating, fragmentation or pulverize the grating material that resembles reinforcing bar or non-reinforced concrete and so on.The United States Patent (USP) 4,017,114 that licensed to LaBounty on April 12nd, 1977 has been introduced a kind of generally in order to collect through doing the multidirectional grab bucket of broken material and chip.Collected material and chip pack into that truck or railcar back are transported at a distance and reuse or reclaim.This grab bucket patent also discloses a kind of tumbler that makes grab bucket can get the multiple angles orientation.

These ancillary services and they are echoed the excavator that uses thereon all problem, and the scope of application of these ancillary services is limited, is only limited to hanging rod structure and excavator.In other words, smashing device, particularly smash the gnathosoma of device, is to be installed on the scraper bowl bar of hanging rod structure or the handle as straight firm extension.Sometimes these ancillary services are that extension as suspension rod directly is installed on the suspension rod.The gnathosoma of some ancillary service is installed on the framework of the straight line extension that is actually scraper bowl bar or suspension rod.Under the situation of this layout, when ancillary service is orientated on hanging rod structure for carrying out work, often needs excavator to move just and can touch processing object, be introduced into and do broken in the jaw that smashes device or smash.

Therefore, we need a kind of like this heavy duty mobile concrete deck pulverizer, this grinder has a frame supporting a jaw structure of grinder uniqueness in the mode with respect to frame self offset mounting, makes the grinder can be in substantially horizontal processing general work in all exercises of hanging rod structure.This working range can also be included near and the various horizontal planes away from the excavator crawler belt on the comminution process of the coagulation aspect, flooring, slabstone, sidewalk, road surface etc. of carrying out.

The heavy duty mobile concrete deck pulverizer that the present invention is attached on portable power equipment hanging rod structure and the hydraulic system has an elongated frame with two opposed ends.One end of frame is fixed with an auxiliary assembly unit, in order to rack to hanging rod structure so that make grinder towards or deviate from facility.The a pair of gnathosoma that has concrete gear shaping vis-a-vis is connected to each other together swingably, can open and close each other.Two gnathosomas are assembled to the other end of frame in the mode with the prolonging direction offset mounting of frame, make one of them gnathosoma direction orientation under the machined surface to be pulverized in all exercises of hanging rod structure.A hydraulic cylinder is housed on the frame is connected, make two gnathosomas can folding with one of them gnathosoma.

The main purpose and the advantage of concrete deck pulverizer of the present invention are, its elongated frame is unique, it is supporting the jaw structure of offset mounting formula, grinder can be worked in all exercises of hanging rod structure, pulverize near the concrete of drivers' cab, settle the gnathosoma of pulverizing usefulness and need not mobile excavator up to the place that hanging rod structure can get.

Another advantage and the purpose of concrete deck pulverizer of the present invention are, its build-up member is unique, can make up easily and apace, make grinder can according to the operator be smash machined surface want to make hanging rod structure to shift near or away from the needs of drivers' cab towards or away from excavator.

Another main purpose of the present invention and advantage are that the assembly structure of concrete deck pulverizer is unique, can adapt to the scraper bowl bar that is installed in excavator or the situation of suspension rod easily, but also can with grinder towards or deviate from drivers' cab and install.

The present invention also has another purpose and advantage, and promptly its elongated frame is got case structure, and this has not only alleviated weight, has improved intensity and application life, and has further protected the workpiece and the movable part of grinder.

The present invention also has such purpose and advantage: grinder of the present invention can smash concrete layer, flooring, slabstone-sidewalk, bridge and the road surface etc. that difficulty is touched, and comprises that those are very near from excavator, the work plane above excavator away from excavator or height.

Concrete layer mill of the present invention also has another major advantage, be that its subcapitulum is unique, offset mounting, be wedge shape, in a single day it be under the concrete machined surface, be to smash that machined surface wants that grinder is shifted near or when shifting to or moving according to the operator just, machined surface mentioned in the gnathosoma of packing into pulverize away from excavator away from the needs of drivers' cab at grinder.Subcapitulum is the wedge shape of inclination, and this helps grinder in the cleaning work of material when crushing drops out from gnathosoma.

The present invention also has another purpose and advantage: the gnathosoma of concrete deck pulverizer has a little shear, can be with the bar cutting or the destruction that may run in the concrete to be pulverized.The operator shifts near hanging rod structure or during away from drivers' cab, shear does not hinder grinder to proceed the comminution process of its steel concrete.

At last, another main purpose of the present invention and advantage are, concrete gear shaping vis-a-vis is slightly inwardly to the direction configuration of the pivotally connected mechanism of gnathosoma, and this helps at gnathosoma up to catch, to hold and to support the concrete machined surface before closed and comminution process begins.

Fig. 1 is the front perspective view that has the concrete deck pulverizer of rotary auxiliary installing component, and the gnathosoma of offset mounting formula is opening wide.

Fig. 2 is the lateral view that is attached to the concrete deck pulverizer on the hanging rod structure of an excavator, frame and last gnathosoma, and part is cut open.

Fig. 3 is that the 3-3 line along Fig. 2 cuts poly-transverse sectional view, shows the planar top view of subcapitulum.

Fig. 4 is the transverse sectional view along the 4-4 line intercepting of Fig. 2, shows the bottom planar view of gnathosoma.

Fig. 5 is and the similar lateral view of Fig. 2 that just gnathosoma is in the close position.

Fig. 6 is the transverse sectional view of the gnathosoma of concrete deck pulverizer along the 6-6 line intercepting of Fig. 5.

Fig. 7 is the transverse sectional view of the gnathosoma of concrete deck pulverizer along the 7-7 line intercepting of Fig. 5.

Fig. 8 is the schematic diagram of concrete deck pulverizer working condition when being attached on the hanging rod structure of an excavator, and excavator to be ready beginning excavating the most close himself concrete.

Schematic diagram and Fig. 8 of Fig. 9 are similar, show concrete deck pulverizer after the section concrete machined layer flour that will quite grow is broken into fragment, are in the situation of the distal-most end that hanging rod structure can reach.

Though concrete deck pulverizer of the present invention is shown in Fig. 1-8, some portable power equipments are the most suitable.More particularly, portable power equipment can be the excavator 10 shown in Fig. 8 and 9, backhoe or other similar facility.

Excavator 10 is contained on a pair of continuous crawler belt 12, and this crawler belt 12 can be creeped excavator along ground just.Sometimes also can adopt wheel.Be equiped with drivers' cab 14 or spin chamber 14 on the crawler belt rotationally.The driver sits in and handles excavator 10 in the unit room.Hinged hanging rod structure has a suspension rod 16 usually, is installed in the both sides of drivers' cab 14 swingably at 18 places, so that be pivotably connected scraper bowl bar or arm 24, for the usefulness that supports concrete deck pulverizer at rod end 28.

Saying that more specifically suspension rod 16 is assembled on the drivers' cab 14 at fulcrum 18 places.Hydraulic unit driver or hydraulic cylinder 20 comprise a piston and plunger, and are connected with drivers' cab 14 with suspension rod 16 swingably, make suspension rod 16 can more than lift and nutation.There is a fulcrum 22 suspension rod 16 ends, and scraper bowl bar 24 promptly is assemblied on this fulcrum swingably.Hydraulic cylinder 26 couples together the top of suspension rod 16 and the end of scraper bowl bar 24 swingably, scraper bowl bar 24 not only can be moved towards drivers' cab downwards with respect to cantilever 16, and can upwards depart from the drivers' cab motion.The rod end 28 of scraper bowl bar or arm 24 has a pivot aperture, for supporting an annex is assembled to the trunnion 32(Fig. 2 and 5 that uses on the end 28 of excavator 10 scraper bowl bars 24).

When being connected to the rod end 28 of scraper bowl bar 24, can adopt by annex auxiliary swing connecting bar 34.Connecting rod 34 comprises a pair of spacer link 36, and this spacer link is pivotably connected on the pivot holder 38 at rod end 28 places of scraper bowl bar 24.A connecting rod pivot 40 arranged from pivot holder 38 is not far, hydraulic cylinder 41 is promptly by means of this fulcrum, and may be connected on the swing connecting bar 34 by the cylinder plug that the end has a pin 43, and plug pin nail 43 can be changed, and is perhaps the same with pin 40.Fulcrum 40 also is connected to pair of auxiliary links 44, and the end of this connecting rod 44 is pointed to and is connected on this annex.Auxiliary connecting rod 44 is fixed rightly and swingably by pin 50, thereby swing connecting bar 34 is locked onto on this annex.

Referring now to Fig. 1-9,, always among the figure shows auxiliary assembly unit 49 of the present invention.Auxiliary assembly unit 49 has a pair of identical and plate 52 that parallel opposed usually, and this plate is assembled on base plate or auxiliary framework caping or the end 74 by welding or weldment.But auxiliary assembly unit 49 also may comprise the structure of the rotary part 58 in 4,017, No. 114 patent documents known and that be disclosed in the above-mentioned LaBounty of licensing to of present technique field.

Referring now to Fig. 1-7,, we can understand and study the details of concrete deck pulverizer 70 of the present invention.Grinder 70 can be made by firm metal, and it has an elongated frame 72, the box structure that this frame is preferably airtight basically.Frame 72 comprises airtight top, lid or end 74, airtight rear wall 76, airtight sidewall 78 and the unlimited antetheca 80 of part.Antetheca 80 has an elongated perforate 82 of passing wall, as the access that feeds frame inside 84.

Lower jaw structure 88 firmly is fixed on the frame 72, and bottom 86 is airtight, that is, the lower jaw structure 88 that is wedge shape is fixed on the bottom 86 of device frame 72 rightly by welding.Lower jaw 88 is substantially perpendicular to the prolonging direction or the direction of box-shaped rack 72, or with respect to this direction offset mounting.In many application scenarios, lower jaw 88 is suitable for becoming about an angle of 90 degrees with the prolonging direction of frame 12, or is substantially perpendicular to frame.Referring to the horizon H of 88 tops of lower jaw among Fig. 2, compare with vertical frame 72.In some application scenario, lower jaw 88 be substantially perpendicular to the scope of frame 72 can from 45 to 135 degree, 65 to 125 degree or 75 to 110 degree.

Consider that from the angle of intensity and light weight lower jaw 88 preferably is box-shaped.Lower jaw 88 has two side plates 90 to be connected by welding on the sidewall 78 of sealing.The airtight sidewall 78 of frame inside 84 rear bearing sheet 92 of also can burn-oning can improve the intensity of structure like this.Cover plate or the welding of top board 94 mats properly are welded on the top of side plate 90.Base plate 96 can also be welded on the each several part of the rear wall of side plate 90 and frame 72 and sidewall 75 and 78.Can also connect one second anti-abrasion base plate 97 on the base plate 96.The quenched end plate 98 of anti-abrasion can be suitably fixed at lower jaw 88 tips.

The cover plate of lower jaw 88 or top board 94 are not only supporting interior increment, bead or screen 104,106, and are supporting external tooth, tip, bead or screen 100,102.Plate 100,102,104,106 is supporting point, tooth, tip or bead 108, bead 108 with become row or embark on journey be arranged as suitable, and slightly towards frame 72.Be appreciated that plate 100,102,104,106 is not difficult to change by means of for example bolt or welding.Be provided with gap 108.5 between the plate 100,102,104 and 106, this gap will be in hereinafter going through.Tooth plate or screen 106 are supporting the lower scissors sheet of settling 112 backwards, and this shear blade is the part of

little shear

110, and 110 parts that may be made in concrete deck pulverizer 70 of shear are so more suitable.

Mobilizable maxilla 120 is considered its intensity and light weight problem with respect to lower jaw 88 swing, also should get box be designed to suitable.The top board 124 that maxilla 120 is conformed to side plate 122 by side plate 122 and profile suitably welds together to be formed.Top board 124 tops are provided with hydraulic cylinder leg 126, and this support can suitably support the hole of passing wherein 128.Have main pivot hole 130 on the sidewall 78, main pivot 132 is promptly in place by this hole 130, and maxilla 120 can be swung.

Maxilla 120 has a cover plate or base plate 134 suitable supports to have tooth, bead, tip or put 140 external tooth, end plate, projected edge plate or some plate 136 and 138.Be provided with an internal gear 142 between the

plate

136 and 138, internal gear 142 also has tooth, tip or the bead 144 of pointing to frame 72 with tooth 140 slightly.

Between the tooth 108 and 144 gapped 144.5 and 108.5, make maxilla 120 tooth 140 and 144 and tooth 108 stagger, thereby fragment can be fallen into wherein, unlikely blocking.Internal gear 142 is fit to have the tooth or most advanced and sophisticated 146 of outermost expansion or elongation.The last shear blade 148 of shear 110 preferably has a quenched pad, and blade 148 itself then disposes along internal gear 142 backwards.

Hydraulic unit driver such as hydraulic cylinder 150 has an assembly fixture 152 to be fixed on the support 126 of movable maxilla 120.Hydraulic cylinder 150 is fixing by pin 154.Hydraulic cylinder 150 extends from the elongated hole 82 that support 126 passes antetheca 80, and plunger pin 158 suitably is fixed on the sidewall 178, and is connected with cylinder plug support 156.

Now just be understood that advantage and the course of work thereof of concrete powder millstone 10 of the present invention at fit on.Auxiliary assembly unit 49 make grinder 70 can be easily towards or carry drivers' cab 14 and install.That is, the rod end 28 of scraper bowl bar 24 and pivoted link 34 are not difficult to be connected on the buck plate 52.Can load onto a whirligig 58 in the auxiliary assembly unit 49, can make frame 72 and

gnathosoma

88 and 120 when grinder 70 mat hydraulic pressure are rotated in any horizontal direction orientation.In addition, grinder 70 can also be attached on scraper bowl bar 24 or the suspension rod 16.

Concrete deck pulverizer 70 be used for crushing and the horizontal concrete machined surface pulverized such as slabstone, aspect, sidewall etc. highly desirable.Can see that from Fig. 8 and 9

gnathosoma

88 and 120 is substantially perpendicular to the prolonging direction of frame 72 or with respect to this direction offset mounting, and scraper bowl bar 24 is connected with auxiliary assembly unit 49 swingably.By this layout,

gnathosoma

88 and 120 can properly be orientated, and the whole scope of activities in

hanging rod structure

16 and 24 is ground into fragment R with concrete machined surface W.The lower jaw 88 of wedge shape and tooth a little inwardly 108 and 140 assist up machined surface W to be pushed in the gnathosoma, and before gnathosoma closes the machined surface pulverizing this machined surface W are remained in the gnathosoma.Be appreciated that beginning the time is that the tooth 46 of elongation inserts earlier in concrete or the frangible material, then the

tooth

140 and 108 of the outside just begins to insert in the concrete, so just guaranteed that maximum hydraulic power is unlikely to use up entirely quickly, but use by easy stages.When

gnathosoma

88 and 120 opened, the fragment through pulverizing fell down from

gnathosoma

88 and 22 towards having a down dip because of wedge shape lower jaw 88, by gap 108.5 and 144.5 they is caught.

The quenched most advanced and sophisticated plate 98 and the second anti-abrasion base plate 97 are guaranteed concrete deck pulverizer 70 running hours long service life.Gnathosoma 88,120 and frame 72 are all made box-shaped, and this has improved the application life and the intensity of grinder 70.Said above that frame 72 also shielded to each movable part (comprising main pivot 132 and hydraulic cylinder 150) of grinder.

We look at the working condition of aspect grinder 70 now.At machined surface W may be under the situation of a continuous machined surface, wants during beginning to chisel a hole earlier on machined surface, as shown in Figure 8.Then, quenched most advanced and sophisticated plate 78 just can move along machined surface W by means of the motion of hanging rod structure together with wedge shape lower jaw 88, and machined surface W is mentioned.Meanwhile,

gnathosoma

88 and 120 opens, closes, so fragment R falls down from grinder 70 when gnathosoma opens.At this moment shear 110 just can be with presumable any reinforcement or bar cutting in the concrete, cut off or destroy.When hanging

rod structure

16 and 24 moved apart drivers' cab, concrete deck pulverizer 70 made grinder 70 and substantially horizontal machined surface W keep suitable angular orientation just around the hanging rod structure swing.In any practical occasion, machined surface can also be higher or lower than excavator 10.

Under the prerequisite that does not break away from the present invention's spirit essence or its principal character, the present invention can other special shape implement; Therefore this manual for embodiment all should be considered as character for example in every respect, rather than limitation of the present invention, scope of the present invention should be as the criterion with this manual appending claims, rather than more than state bright content and be as the criterion.

Claims

1, a kind of hanging rod structure of portable power equipment and heavy duty mobile concrete deck pulverizer on the hydraulic system of being attached to is characterized in that it comprises:

(a) elongated frame has two ends;

(b) auxiliary assembly unit is fixed on the end of described frame, in order to rack to hanging rod structure;

(c) a pair of the upper jaw and the lower jaw, have a plurality of concrete vis-a-vis and insert tooth, the upper jaw and the lower jaw are connected to each other swingably, make its folding each other, and be installed on another end of frame with respect to the prolonging direction offset mounting of frame, lower jaw can be orientated under machined surface in all exercises of hanging rod structure;

(d) hydraulic cylinder is contained on the frame, and is connected with one of them gnathosoma, makes the upper jaw and the lower jaw can folding.

2, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that, lower jaw is fixedlyed connected with frame, and maxilla then is connected with hydraulic system, and is installed on the frame swingably.

3, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that frame is box-shaped, and lower jaw is fixedlyed connected with frame, and another end of frame is closed.

4, heavy duty mobile concrete deck pulverizer as claimed in claim 3 is characterized in that, hydraulic cylinder and maxilla are installed in the frame swingably, so that outwards be flapped toward fixed jaw by the aperture of frame.

5, heavy duty mobile concrete deck pulverizer as claimed in claim 3 is characterized in that, an end of described frame is sealed by auxiliary assembly unit.

6, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that, lower jaw is fixedlyed connected with another end of frame, and is substantially perpendicular to frame.

7, heavy duty mobile concrete deck pulverizer as claimed in claim 6 is characterized in that fixed jaw is wedge shape, so that grinder is lifted machined surface in two jaws when shifting to machined surface.

8, heavy duty mobile concrete deck pulverizer as claimed in claim 6 is characterized in that, fixed jaw has a plate through quenching.

9, heavy duty mobile concrete deck pulverizer as claimed in claim 7 is characterized in that, two jaws are got case structure.

10, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that, two jaws have opposed plate, and each plate is supporting and each staggered tooth of tooth of another plate.

11, heavy duty mobile concrete deck pulverizer as claimed in claim 10 is characterized in that, the tooth on each plate is lined up three rows at least.

12, heavy duty mobile concrete deck pulverizer as claimed in claim 10 is characterized in that, each tooth points to the Pivot joint of two jaws slightly inwardly.

13, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that, the outmost tooth of one of them gnathosoma is elongated.

14, heavy duty mobile concrete deck pulverizer as claimed in claim 1 is characterized in that, each gnathosoma is supporting a little shear blade that adjoins its Pivot joint.

15, a kind of cantilever construction of portable power equipment and heavy duty mobile concrete deck pulverizer on the hydraulic system of being attached to is characterized in that it comprises:

(a) elongated frame has two ends;

(b) auxiliary assembly unit is fixed on the end of frame, in order to rack to hanging rod structure, make grinder towards or deviate from described facility orientation;

(c) the upper jaw and the lower jaw, have opposed but interlaced with each other concrete and insert tooth, two jaws are connected to each other swingably, making each other can folding, lower jaw is wedge shape and is contained on another end of frame, be substantially perpendicular to frame, lower jaw is orientated under machined surface to be pulverized in all exercises of hanging rod structure; With

(d) hydraulic cylinder is contained on the frame and with one of them gnathosoma and is connected, and makes two jaws can folding.

16, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, lower jaw is fixedlyed connected with frame, so that machined surface is lifted in two jaws when grinder is shifted to machined surface.

17, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, lower jaw has a plate through quenching.

18, heavy duty mobile concrete deck pulverizer as claimed in claim 16 is characterized in that, two jaws are got case structure.

19, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, two jaws have opposed plate, and each plate is supporting and the staggered tooth of tooth of another plate.

20, heavy duty mobile concrete deck pulverizer as claimed in claim 19 is characterized in that, the tooth on each plate is lined up three rows at least.

21, heavy duty mobile concrete deck pulverizer as claimed in claim 19 is characterized in that, each tooth slightly inwardly points to the Pivot joint of two jaws.

22, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, the outmost tooth of one of them gnathosoma is elongated.

23, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, each jaw is supporting the little shear blade that adjoins its Pivot joint.

24, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, lower jaw is fixedlyed connected with frame, and maxilla is connected with hydraulic system, and is installed on the frame swingably.

25, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that frame is box-shaped, and lower jaw is fixedlyed connected with frame, and closes another end of frame.

26, heavy duty mobile concrete deck pulverizer as claimed in claim 25 is characterized in that, hydraulic cylinder and maxilla are installed in the frame swingably, so that be flapped toward lower jaw outwardly by the frame hole.

27, heavy duty mobile concrete deck pulverizer as claimed in claim 26 is characterized in that, end of this of frame is sealed by auxiliary assembly unit.

28, heavy duty mobile concrete deck pulverizer as claimed in claim 15 is characterized in that, described auxiliary assembly unit has a rotatable device.

29, heavy duty mobile as claimed in claim 15 rigid pavement smashes device, it is characterized in that, described auxiliary assembly unit comprises a pair of opposed dish, can swing and can reversally be connected with hanging rod structure, and with opposed auxiliary pivoted link to being connected.

30, heavy duty mobile as claimed in claim 29 rigid pavement smashes device, it is characterized in that, has the eyelet of three configurations triangular in shape on each plate, for the usefulness of hanging rod structure and connecting rod reversal connection.

31, a kind ofly be attached to portable engine and have heavy duty mobile concrete deck pulverizer on cantilever construction and the hydraulic system, it is characterized in that it comprises:

(a) an elongated cabinet rack has two ends;

(b) auxiliary assembly unit is fixed to an end of frame, in order to rack to hanging rod structure, make grinder towards or deviate from described facility orientation;

(c) the upper jaw and the lower jaw, have a plurality of concrete and insert tooth, the upper jaw and the lower jaw interconnect each other swingably, making each other can folding, maxilla is installed in the frame swingably, and lower jaw is wedge shape, and is installed on another end of frame, be substantially perpendicular to frame, lower jaw is orientated under machined surface to be pulverized in all exercises of suspension rod; With

(d) hydraulic cylinder is contained in the frame, is connected with maxilla, makes maxilla and hydraulic cylinder outwards be flapped toward lower jaw by the frame hole, makes two jaws can folding.

32, heavy duty mobile concrete deck pulverizer as claimed in claim 32 is characterized in that, described fixed jaw has a gear shaping plate through quenching.

33, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, two jaws are got case structure.

34, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, two jaws have opposed plate, and each plate is supporting a plurality of and the staggered tooth of the tooth of another plate.

35, heavy duty mobile concrete deck pulverizer as claimed in claim 34 is characterized in that, the tooth on each plate becomes three rows to arrange at least.

36, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, points to the Pivot joint of two jaws in each teeth directional.

37, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, the outmost tooth of one of them gnathosoma is elongated.

38, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, two jaws are respectively supporting a little shear blade that adjoins its Pivot joint.

39, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, " perpendicular " speech is meant that fixing lower jaw and the angle between the frame are in 45 to 135 scopes of spending.

40, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, " perpendicular " speech is meant that fixing lower jaw and the angle between the frame are in 65 to 125 scopes of spending.

41, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, " perpendicular " speech is meant that fixing lower jaw and the angle between the frame are in 75 to 110 scopes of spending.

42, heavy duty mobile concrete deck pulverizer as claimed in claim 31 is characterized in that, " perpendicular " speech is meant that fixing lower jaw and the angle between the frame are near 90 degree.