JP2003112066A - Shear type crushing equipment and self-travelling crusher and method of exchanging rotary teeth of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shear type crushing equipment which can improve the workability during exchanging of rotary teeth of a self-travelling crusher, and a method of exchanging the rotary teeth of the shear type crushing equipment. SOLUTION: This equipment is provided with a housing body 9, revolving shafts 12 which are disposed in an approximately horizontal direction within this housing body 9, a plurality of the rotary teeth 13 of the integral type which are successively mounted on the revolving shafts 12, a plurality of cleaning fins 21 which are disposed in the spaces formed by a plurality of these successively disposed rotary teeth 13, through-holes 9B and 9C which are disposed at right an left side walls 9b and 9c existing on one side and other side, respectively, in the perpendicular direction of the revolving shaft 12 of the housing body 9, side plates 43 which are mounted with the cleaning fins 21 on the inner peripheral side and are fitted to the through-holes 9B and 9C from the outer peripheral side of the housing body 9 and lock bolts 44 which clamp the side plates 43 to the housing body 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shearing type crushing device for thinly shearing an object to be crushed, a self-propelled crushing device provided with the same, and a method for replacing rotary teeth of the shearing type crushing device. is there.

[0002]

2. Description of the Related Art A crusher is used for various kinds of rocks and construction waste such as concrete lumps carried out when a building is demolished and asphalt lumps discharged during road repair, industrial waste, and natural stones. Prior to transportation, etc. are crushed into a predetermined size at the work site, so that waste materials can be reused, construction can be facilitated, and costs can be reduced. Several types have already been proposed as a crushing device provided in this crusher, but as a particularly suitable device for crushing construction waste, household appliances, plastic waste, old tires, etc. A plurality of substantially disk-shaped rotating teeth and a small-diameter disk-shaped spacer interposed between the rotating teeth are fixed to each of the plurality of rotating shafts arranged in parallel to form a rotating body. A shearing type crushing device (such as a biaxial shearing machine including a so-called shredder) is proposed in which the rotating bodies are rotated so that adjacent ones are opposite to each other, so that the objects to be crushed are finely sheared. ing.

At this time, as the rotating teeth, for example, as described in Japanese Patent Publication No. 8-22391, a disk portion having a substantially disk shape attached to the rotating shaft and a plurality of outer peripheral side circumferential portions of the disk portion are provided. Two types of so-called piece cutters, which are detachably attached partial teeth (cutter pieces), and so-called integral rotary teeth (so-called mono-cutters) in which the disk portion and partial teeth of this piece cutter are integrally formed. Has been proposed.

Of these piece cutters and mono cutters, the piece cutter needs only to be replaced by removing only the partial teeth from the disk portion even if the rotating teeth are worn (consumed) as the crushing work progresses. The work can be facilitated, and in particular, the crusher can be replaced at the operation site without the need to carry it into a fully equipped factory. On the other hand, the partially removable structure as described above has a relatively high manufacturing cost, and since the number of parts is large, the replacement part cost and the work cost at the time of replacement are relatively high.

On the other hand, when the rotating body is rotated and the crushed object is sheared by the rotating teeth as described above, the fragments of the crushed object may drop downward from the gaps of the spacers between the rotating teeth as they are, Alternatively, there is a possibility that the crushed material once sheared and extruded to the lower side (discharging side) of the rotating body may wind around or be caught by the spacer and return to the upper side (biting side) of the rotating body again. In Japanese Patent Publication No. 8-22391, for the purpose of preventing these problems, on the inner peripheral side of the housing side wall (= two side surfaces located on one side and the other side in the direction perpendicular to the rotating shaft), on the rotating shaft side. A cleaner (scraper, fixed teeth) is provided to face it. The tip of this cleaner has a substantially arcuate shape having substantially the same diameter as the outer edge of the spacer, and faces the outer edge of the spacer in close proximity or by sliding contact to close the gap between the rotating teeth.
The above-mentioned functions of preventing the falling of the crushed material and the return of the crushed material are fulfilled.

[0006]

When the mono-cutter is used as the rotary teeth as in the above-mentioned prior art, since the rotary body is sequentially inserted into the rotary shafts arranged in the substantially horizontal direction to form the rotary body, wear and the like are caused. If it becomes necessary to replace it, it is necessary to sequentially remove it from the end of the rotary shaft and replace it. At this time, as described above, the cleaner fixed to the housing is arranged to be inserted into the space between all the adjacent rotary teeth, and if it is left as it is, this cleaner interferes with the removal of the rotary teeth in the axial direction. Because I can't
The cleaner must be removed and removed in advance in order to perform the above-mentioned axial extraction work.

However, in the above conventional technique,
Each cleaner inserted between adjacent rotating teeth has a structure in which the upper and lower pieces are divided into upper and lower parts, and the engaging members (longitudinal members) projecting on the inner peripheral side of the housing side wall are used as the upper and lower pieces. The cleaner is attached by sandwiching it from above and below with and then fastening both with a fixing bolt (tie bolt). For this reason,
When removing the cleaner, first loosen the fixing bolt to separate the upper piece from the lower piece, and then pull the upper piece upward in the narrow space between the adjacent rotary teeth and insert it through the upper opening of the housing. It is necessary to take it out, and similarly for the lower piece, it is necessary to pull out downward in a narrow space and take it out through the lower opening of the housing, which is a very laborious and labor-intensive work. This was also the case when the cleaner was reattached to the housing side wall after the new rotary tooth was attached. As a result, the workability in the entire replacement work of the rotary teeth is lowered, and the maintainability is lowered.

An object of the present invention is to provide a shearing type crushing device capable of improving workability when exchanging an integral type rotating tooth, a self-propelled crushing machine provided with the same, and a method of replacing a rotating tooth of the shearing type crushing device. To do.

[0009]

(1) In order to achieve the above object, a shearing type crushing device of the present invention includes a housing, a rotary shaft provided in the housing in a substantially horizontal direction, and the rotary shaft. A plurality of integral rotary teeth sequentially disposed in the housing, a plurality of cleaners disposed in a space formed by the plurality of rotary teeth sequentially disposed, and a direction perpendicular to the rotary shaft of the housing. An opening provided on each of the two side surfaces located on one side and the other side, and the cleaner attaching member to which the cleaner is attached and which fits into the opening from the outer peripheral side of the housing, and the cleaner attaching member on the housing. And a fastening member for fastening.

In the present invention, the cleaner mounting member to which the cleaner is mounted is fitted from the outer peripheral side of the housing into the openings on the two sides on both sides of the housing in the direction perpendicular to the rotation axis, and then the cleaner is fastened to the housing by the fastening member to clean the cleaner. The structure is arranged so as to face the rotation shaft side. With such a structure, if it is necessary to remove the cleaner prior to removing the rotary teeth when replacing the integrated rotary teeth, for example, the cleaner can be attached to the outer peripheral side of the housing together with the cleaner mounting member only by loosening the fastening member. It can be removed. In addition, even when the installation of new rotary teeth is completed and the cleaner is installed, it suffices to fit the cleaner mounting member with the cleaner fitted into the opening from the outer peripheral side of the housing and then fasten it with the fastening member, and it is extremely easy to install. it can. As a result, the upper and lower pieces of the two-part structure can be significantly reduced in labor and labor compared with the conventional structure in which the upper and lower parts of the upper and lower parts of the housing need to be pulled out upward and downward in a narrow space. it can. In this way, the cleaner can be easily removed and attached, which is indispensable when replacing the rotary teeth of the integrated type. Therefore, the workability in the whole rotary teeth replacement work can be improved, and the maintainability can be improved.

(2) In the above (1), preferably,
One of the cleaner mounting members is commonly provided for one of the side surfaces, and the single common cleaner mounting member mounts all of the corresponding cleaners on the side surface side.

(3) In the above (1), and preferably, a plurality of the cleaner mounting members are provided for one side surface, and the plurality of cleaner mounting members are provided on the corresponding side surface side. All of the above cleaners are shared and installed.

(4) In the above (3), more preferably, the plurality of cleaner mounting members are provided in the same number as the number of the cleaners on the corresponding side surface side, and each cleaner mounting member includes one cleaner. Install each.

(5) In order to achieve the above object, the self-propelled crusher of the present invention comprises a frame, a traveling device provided in the frame, a housing, and a rotation provided in the housing in a substantially horizontal direction. A shaft, a plurality of integral rotary teeth sequentially arranged on the rotary shaft, a plurality of cleaners arranged in a space formed by the plural rotary teeth sequentially arranged, and the rotary shaft of the housing An opening provided on each of two side surfaces located on one side and the other side in the direction orthogonal to the cleaner, the cleaner is attached to the cleaner, and the cleaner attaching member is fitted into the opening from the outer peripheral side of the housing; A shearing type crushing device which is composed of a fastening member which is fastened to the housing and is provided on one side in the longitudinal direction of the frame, and a hopping device provided on the shearing type crushing device. Comprising a path, and a conveyor extending from the lower position of the shearing type crusher to the longitudinal outer position of the frame.

(6) In order to achieve the above object, a method of replacing rotary teeth of a shearing type crushing device according to the present invention comprises a plurality of rotary shafts arranged in a substantially horizontal direction and a plurality of rotary shafts fixed to these rotary shafts. Among the housings of the shearing type crushing device including the integral type rotating teeth, the cleaner mounting member fitted from the outer peripheral side to the openings provided on the side surfaces on one side and the other side in the direction perpendicular to the rotating shaft is provided. After removing the housing with the cleaner attached thereto from the housing, the region of the housing on the one axial side of the rotary shaft is opened to expose one end of the rotary shaft to the outside, and the exposed rotary shaft The rotary teeth are sequentially withdrawn from the one end side in the axial direction and taken out of the housing.

(7) In order to achieve the above object, and in the method for exchanging the rotary teeth of the shearing type crushing device of the present invention, the housing of the shearing type crushing device including a plurality of rotating shafts arranged substantially horizontally. Of these, the region on the one end side in the axial direction of the rotating shaft is opened to expose one end of the rotating shaft to the outside,
From the one end side of the exposed rotary shaft, a plurality of integral rotary teeth to be fixedly mounted on the rotary shaft are sequentially inserted in the axial direction and arranged in the housing, and then the one of the housing A cleaner attaching member having a cleaner attached in advance is fitted from the outer peripheral side into openings provided on one side surface and the other side surface in a direction perpendicular to the rotating shaft so that the cleaner faces the rotating shaft side.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the shearing type crushing device of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the entire structure of a self-propelled crusher equipped with an embodiment of the shear crusher of the present invention, and FIG. 2 is an upper surface of the self-propelled crusher shown in FIG. It is a figure. In addition, FIG.
It is the arrow front view seen from the inside A direction.

1 to 3, 1 is a self-propelled crusher, 2 is a crushed object (for example, construction waste, household electric appliances, plastic waste, old tire) by a heavy machine such as a hydraulic excavator equipped with a grapple or the like. The hopper 3 into which the crusher is charged is a shearing type crushing device (in this example, a crushing device 2) which crushes the object to be crushed received in the hopper 2 and discharges it downward.
Shaft shredder) 4, a crusher body composed of the hopper 2, the shearing type crushing device 3, and a drive device 10 described later, and 5 is provided below the crusher body 4 and carries the crusher body 4 The traveling body 6, which receives the crushed material crushed by the shear crushing device 3 and discharged downward, is on the rear side of the self-propelled crusher 1 (right side in FIGS. 1 and 2,
A conveyor 7 for carrying and carrying out to the rear side) is provided above the conveyor 6 and magnetically attracts magnetic substances (rebar etc.) contained in the crushed material being conveyed on the conveyor 6. The magnetic separator 8 to be removed is a power unit as a power unit mounted on the traveling body 5.

The hopper 2 is a hopper having a diameter-expanding shape which is opened upward to receive an object to be crushed, and is arranged above the shear crushing device 3. In addition, this hopper 2
Is detachably attached to the upper part of the housing body 9 of the shearing type crushing device 3 with, for example, bolts and nuts (see FIG. 3).

The shearing type crushing device 3 is referred to as the front side of the self-propelled crushing device 1 of the main body frame crushing device mounting portion 5Aa (left side in FIGS. 1 and 2, front side in FIG. 3 and hereinafter simply front side). Described) mounted on the edge. The shearing type crushing device 3 is driven by a crushing device hydraulic (electrically driven) motor 11 provided in a driving device 10 provided behind the shearing type crushing device 3.

FIG. 4 is a top view showing a detailed structure of the shearing type crushing device 3, and FIG. 5 is a front view seen from the direction B in FIG. In FIGS. 4 and 5, 12
Is a rotary shaft having a substantially regular polygonal cross section (a pentagonal shape in the present embodiment (see FIG. 6 to be described later)) arranged in the housing body 9 in a substantially horizontal direction, and 13 is a central portion of the rotary shaft. An integral type rotary tooth having a plurality of hook portions (not shown) in the circumferential direction of a substantially disk-shaped disk portion (not shown) provided with a through hole (not shown) for inserting the rotary shaft 12, Is a disk-shaped spacer having a diameter smaller than that of the rotary tooth 13 and having a through hole (not shown) for inserting the rotary shaft 12 in the central portion thereof. Rotating body 1 by alternately inserting and fixing
5 and 15 are configured. These rotating bodies 15 and 15 are
The respective rotary shafts 12, 12 are arranged in parallel with each other so as to extend substantially along the front-rear direction (the left-right direction in FIG. 4) of the self-propelled crusher 1, and the rotary teeth 13, 13 of each other are arranged. It is arranged so as to partially overlap and mesh with each other in the radial direction.

Among these rotating bodies 15, 15, a driven gear (not shown) is fixed to the rear (right side in FIG. 4) end of the rotary shaft 12 of the upper rotating body 15 in FIG. A drive gear (not shown) is fixed to the rear end of the rotary shaft 12 of the rotary body 15 (only the upper lid 9d of the drive unit that houses the driven gear and the drive gear is shown in FIG. 4). 16
4 is an input shaft connected to the rear side of the drive gear of the rotating body 15 on the lower side in FIG.
It is connected to an output shaft 11a (see FIG. 1) of the hydraulic motor 11 for the crushing device, and the driving force thereof is input.

That is, the hydraulic motor 11 for the crushing device
The driving force (torque) input from the input shaft 16 to the rotating body 15 shown in the lower side of FIG. 4 is transmitted to the rotating body 15 shown in the upper side of FIG. The driving force is transmitted through the gears, and these rotating bodies 15,
The 15 are rotated in opposite directions so as to receive the crushed material. As a result, the material to be crushed introduced from the hopper 2 is caught between the rotary teeth 13, 13 and sheared into a small piece to be crushed to a predetermined size.

As shown in FIG. 4, the housing body 9 has a substantially box shape, and has a front side wall 9a on the front side and a direction substantially perpendicular to the axial direction of the rotary shaft 12 (that is, the width direction, in FIG. 4). Left and right side walls 9b and 9c are provided on both sides (up and down direction). Further, an opening 9A for receiving the crushed material introduced from the hopper 2 is provided in the upper front part of the housing body 9. Behind the opening 9A, the drive gear and the driven gear, and the two rotating bodies 15 and 1 are provided.
The above-mentioned drive unit is provided in which bearings and the like for rotatably supporting the rotary shafts 12 of the five with respect to the housing body 9 are arranged.

Further, the front side wall 9a is provided with openings (not shown) for taking out the rotary teeth 13 and the spacer 14. In the lid plate 17 that closes this opening, the bolts 18 inserted into through holes (not shown) provided in a plurality of locations (8 locations in the present embodiment) around the lid plate 17 and the housing front side wall 9a are nuts. By being fastened with 19, it is fixed to the housing body 9. That is, when the bolt 18 and the nut 19 are loosened and the lid plate 17 is removed from the housing body 9, the front end portions of the rotary shafts 12 and 12 are exposed (in a cantilever state supported only from the rear side). The rotary shaft 12 through the opening and the rotary tooth 1
3 and the spacer 14 can be pulled out to the front side.

The lid plate 17 is integrally formed by a substantially rectangular main body plate 17a and a bearing plate 17b which is fixed to the rear portion from the center of the main body plate 17a by welding, for example, and ribs 17c.
It is reinforced by. The bearing plate 17b includes:
A through hole (not shown) for inserting the rotary shaft 12 of the rotary body 15 is provided, and the lid plate 17 closes the opening of the front side wall 9a (that is, the state shown in FIG. 4). ), The bearing plate 17b is attached to the rotary shaft 12
Is rotatably supported via a bearing (not shown) provided in the through hole. 20
Is a bearing cover that covers the front end of the rotary shaft 12 supported by the bearing of the bearing plate 17b.

Reference numeral 21 denotes the left side of the housing body 9.
It is provided on the inner peripheral side of the right side walls 9b, 9c, is arranged in the space formed by each rotating tooth 13 of the rotating body 15, and is arranged in substantially the same number as the spacers 14 so as to face each spacer 14 of the rotating body 15. It is a cleaning fin (cleaner). In the cleaning fin 21, fragments of the crushed object drop downward from the gap between the outer peripheral surface of the spacer 14 and the housing body 9, or the crushed object once sheared and crushed and pushed to the lower side of the rotating body 15 is the spacer. It is provided in order to prevent winding or catching around 14 and returning to the upper side of the rotating body 15 again.

Returning to FIG. 1, the traveling body 5 is provided with a main body frame 5A and a traveling device 5B as traveling means. The main body frame 5A is formed of, for example, a substantially rectangular frame, and has a crushing device mounting portion 5Aa on which the shearing crushing device 3, the hopper 2, the power unit 8 and the like are mounted, and the crushing device mounting portion 5Aa. It is composed of a track frame portion 5Ab connecting to the traveling device 5B. The traveling device 5B is composed of a drive wheel 22, a driven wheel (idler) 23, and a crawler belt (trackless crawler belt) 24 spanned between them, and is provided on the drive wheel 22 side. Running hydraulic motor 2
The self-propelled crusher 1 is made to run by giving a driving force by 5.

The conveyor 6 is suspended and supported at its discharge side (ie, rear side) by an arm member 26 provided so as to project from the power unit 8 via supporting members 27 and 28. The portion of the conveyor 6 opposite to the discharge side (that is, the front side) is located below the main body frame crushing device mounting portion 5Aa and is hung from the crushing device mounting portion 5Aa via the support member 29. Supported by. As a result, the conveyor 6 passes from below the main body frame crushing device mounting portion 5Aa to below the power unit 8 to pass the main body frame 5
It is arranged on the rear side outward of A with an upward inclination.

Reference numeral 30 is a frame, 31 is a drive wheel supported by the frame 30, and 32 is a drive wheel 3
Hydraulic motor for conveyor that drives 1 (see FIG. 2), 33
Is a conveyor belt wound around the driving wheel 31 and a driven wheel (not shown), and 34 is a roller for supporting the conveying surface of the conveyor belt 33. At this time, 3
5 is a bearing mechanism (not shown) that supports the rotating shaft of the driven wheel.
Is a well-known tension adjusting mechanism capable of displacing in a substantially horizontal direction. With this, the tension of the conveyor belt 33 can be adjusted.

Reference numeral 36 denotes a crushed material chute which is provided below the shearing type crushing device 3 and guides the crushed material generated by crushing by the shearing type crushing device 3 downward. The conveyor 6 is configured to convey and discharge the crushed material led out from the crushed material chute 36 by circulatingly driving the conveyor belt 33.

The magnetic separator 7 is suspended and supported by the arm member 26 via a support member 37, and a magnetic separator belt 38 arranged above the conveyor belt 33 so as to be substantially orthogonal thereto, and not shown. Magnetic force generating means and magnetic motor 39 for magnetic separator for driving the magnetic separator belt 38.
It has and. The magnetic separator 7 includes the magnetic separator belt 3
8 is driven around the magnetic force generating means (not shown) by the magnetic separator hydraulic motor 39 so that the magnetic force from the magnetic force generating means acts over the magnetic selector belt 38 to cause the magnetic substance to move the magnetic substance. Magnetic material chute 40 provided on the frame 30 of the conveyor 6 after being conveyed in a direction substantially orthogonal to the conveyor belt 33.
It is designed to be dropped to the side of the conveyor 6 via the.

The power unit 8 is mounted above the rear side end of the main body frame crushing device mounting portion 5Aa via a power unit loading member 41, and a driver's seat 42 is provided on the left front side thereof. . This power unit 8 is a hydraulic pump (not shown) that discharges pressure oil to hydraulic actuators such as the crusher hydraulic motor 11, the traveling hydraulic motor 25, the conveyor hydraulic motor 32, and the magnetic separator hydraulic motor 39. No.), an engine (not shown) as a prime mover for driving these hydraulic pumps, and the hydraulic actuators (the hydraulic motor 11 for the crushing device and the hydraulic motor 2 for traveling) from these hydraulic pumps.
5, conveyor hydraulic motor 32, magnetic motor 3 for magnetic separator
9) The control valve device (not shown) having a plurality of control valves (not shown) for controlling the flow of the pressure oil supplied to each unit is incorporated.

In the self-propelled crusher 1 having the above-described structure, the greatest feature of the present embodiment is that the cleaning fin 21 provided in the above-mentioned shear crusher 3 is widthwise outward from the housing body 9. It has a removable structure. Hereinafter, the detailed structure will be described with reference to FIG. 4 described above, FIG. 6 which is a cross-sectional view taken along the line VI-VI in FIG. 4, and FIG. 7 which is a side view seen from the direction C in FIG.

9 in these FIGS. 4, 6 and 7.
B and 9C are through holes 4 for inserting the cleaning fin 21 provided in the left and right side walls 9b and 9c of the housing.
3 is a plurality of sheets on the inner peripheral side (in this embodiment, one sheet or two sheets).
The number of cleaning fins 21 is a side plate fixed by, for example, welding, 43a is a side plate for mounting two cleaning fins 21, and 43b is a side plate for mounting one cleaning fin 21.

The through holes 9B and 9C have an opening area slightly larger than the side sectional area of the cleaning fin 21 and correspond to the spacers 14 of the rotary body 15 on the left and right side walls 9b and 9c of the housing. The same number as the cleaning fins 21 is provided at the position.

Of the side plates 43, the two side plates 43a are provided at three locations on the left side wall 9b side and four locations on the right side wall 9c side, and the one side plate 43b is provided at one side wall 9b. Are provided, and each side wall is provided in parallel.

Further, the side plates 43a, 43b
Is provided with through holes (not shown) for inserting the fixing bolts 44 at a total of two locations, for example, a central portion at the upper end and a central portion at the lower end, and the fixing bolts 44 inserted through the through holes are provided on the left and right side walls of the housing. The side plates 43a and 43b are fixed to the housing body 9 by being fastened to screw holes 45 (see FIG. 8 described later) provided at corresponding positions of 9b and 9c. At this time, the cleaning fins 21 are fitted into the through holes 9B and 9C from the outer peripheral side of the housing main body 9, respectively, and the tips of the cleaning fins 21 are brought close to the outer edges of the spacers 14, as shown in FIG. It is supposed to come.

In the above description, the main body frame 5A constitutes the frame described in each of the claims, and the housing main body 9 and the lid plate 17 constitute a housing. At this time, the lid plate 17 serves as a rotating shaft of the housing. It constitutes a region on the one end side in the axial direction. Also, the left and right side walls 9b and 9c
Constitute two side surfaces located on one side and the other side of the housing in a direction perpendicular to the rotation axis, and have through holes 9B and 9C.
Form an opening provided on each side surface. The side plates 43a and 43b form a cleaner mounting member that fits into the opening from the outer peripheral side of the housing, and the fixing bolts 44 form a fastening member that fastens the cleaner mounting member to the housing.

Next, the operation and action of one embodiment of the shearing type crushing device of the present invention will be described below. In the self-propelled crusher 1 having the above-described configuration, during the crushing work, when the crushed object is put into the hopper 2 by a hydraulic excavator equipped with a grapple or the like, the crushed object received by the hopper 2 becomes a shear crusher. It is guided to No. 3 and finely shredded to a predetermined size. The crushed crushed material falls from the shear crusher 3 onto the conveyor belt 33 of the conveyor 6 through the crushed material chute 36 below, and is discharged backward while the magnetic material is adsorbed by the magnetic separator 7 on the way. It

In the self-propelled crusher 1 for crushing work in this way, when it becomes necessary to replace the rotary teeth 13 of the rotary body 15 due to, for example, wear, the operator is
First, the operation of the self-propelled crusher 1 is completely stopped.

Next, the fixing bolt 4 for the side plate 43
After loosening and removing 4, the side plate 43 is approximately horizontal from the left side wall 9b (or the right side wall 9c) and the axial direction of the rotary shaft 12 by hand (or an appropriate jig or tool such as a lever block may be used). And the cleaning fin 21 fixed to the inner wall of the side plate 43 is removed to the outside of the housing main body 9 in a direction substantially perpendicular to the above (direction perpendicular to the paper surface in FIG. 7).
Pull out from C).

In this way, the side plates 43 are sequentially
Together with the cleaning fin 21 on the left and right side walls 9b, 9
Removed from c, all side plates 43a, 43b
Remove. In Fig. 8, the removal is completed in this way,
It shows a state in which the through hole 9B and the screw hole 45 are exposed.

Next, the operator loosens the bolt 18 and the nut 19 that fasten and fix the lid plate 17 and the housing body 9, and manually (or a suitable jig or tool such as a lever block may be used). Thus, the lid plate 17 is slid forward (leftward in FIG. 8) in a state of being parallel to the front side wall 9a. As a result, the bearings provided in the through holes of the bearing plate 17b are attached to the rotary shaft 1
2, the lid plate 17 is pulled out from the housing body 9
Can be removed to the outside.

Needless to say, either the removal work of the cleaning fin 21 or the removal work of the lid plate 17 may be performed first.

After removing the cleaning fins 21 and the lid plate 17 from the housing body 9 in this manner, the operator inserts the rotating teeth 15 and the spacers 14 through the exposed openings for removing the rotating teeth 13 and the spacers 14 into the rotating bodies 15 and 15. The rotary teeth 13 and the spacers 14 are sequentially and alternately withdrawn from the front side. In this way, all the rotary teeth 13 can be extracted.

On the other hand, when incorporating a new rotary tooth 13, the operator may perform the procedure in the reverse order of the above. That is, the rotating teeth 13 and the spacers 14 are sequentially and alternately inserted into the exposed rotating shafts 12 and 12 from the front side through the openings. When all the rotary teeth 13 have been assembled, the lid plate 17 is slid rearward while the lid plate 17 is parallel to the housing front side wall 9a and the center of the through hole of the bearing plate 17b is aligned with the axis of the rotary shaft 12. As a result, the rotary shaft 12 is inserted into the bearing of the bearing plate 17, and when the lid plate 17 comes into close contact with the housing front side wall 9a, the lid plate 17 is fastened and fixed to the housing body 9 with the bolt 18 and the nut 19. That is, it returns to the state of FIG.

Next, the worker attaches the cleaning fin 21 fixed to the inner wall of the side plate 43 to the left side wall 9b.
(Or the through hole 9B provided in the right side wall 9c) (or the through hole 9C) is fitted from the outer peripheral side, and then the fixing bolt is inserted through the two through holes in the upper and lower end central portions of the side plate 43. The side plate 43 is fixed to the housing body 9 by fastening 44 to the left side wall 9b (or the right side wall 9c). In this way, the cleaning fin 21
Is fitted into the through holes 9B and 9C, the positioning of the cleaning fin 21 with respect to the rotating body 15 in the axial direction and the circumferential direction can be extremely easily performed.

As described above, the side plates 43 are sequentially arranged.
Is fastened to the left and right side walls 9b and 9c, and all the side plates 43a and 43b have been attached to the housing body 9 (that is, the state shown in FIG. 7), the replacement work of the rotary teeth 13 is completed.

As described above, according to the embodiment of the shearing type crushing device of the present invention, the upper and lower pieces of the two-divided structure are respectively drawn upward and downward in the narrow space and above the housing main body 9. -Compared with the conventional structure that needs to be taken out from the lower opening, the time and effort at the time of removing and installing the cleaning fin 21 can be greatly reduced. In this way, since the cleaning fin 21 can be easily removed / attached, which must always be performed when the integrated rotary tooth 13 is replaced, the workability in the entire rotary tooth replacement operation can be improved, and the maintenance efficiency is improved. Can be improved.

The shape of the side plate, which is one of the features of the present invention, is not limited to that of the above-described embodiment, and various modifications can be made without departing from the spirit and technical idea thereof. Is. Hereinafter, modifications of such a side plate shape will be sequentially described.

(Variation 1) Structure in which one cleaning fin 21 is individually provided on one side plate FIGS. 9 (a) and 9 (b) show one embodiment of the shear crushing device of the present invention. Of the side plate 4 in the modified example of
It is a side view showing the state where 3b was attached and the state where it was removed, respectively. 9A and 9B, the left and right side walls 9b and 9c have the same number of the one side plate 43b as the cleaning fin 21.
(However, in FIG. 9A, the left side wall 9b is provided.
Only the side is shown). These side plates 43b are, similar to the above-described embodiment of the present invention, the fixing bolts 44 inserted into through holes (not shown) provided at a total of two locations of the upper end central portion and the lower end central portion. Are fastened to the screw holes 45 provided at the positions corresponding to the through holes of the left and right side walls 9b and 9c of the housing, so that they are fixed to the housing body 9. With such a structure, the cleaning fins 21 can be individually extracted when the cleaning fins 21 are removed. Also in this modified example having the above-described structure, the same effect as that of the above-described embodiment of the present invention can be obtained.

(Variation 2) A structure in which all the cleaning fins 21 on one side wall are provided on one side plate. FIGS. 10 (a) and 10 (b) show one embodiment of the shear crushing device of the present invention. FIG. 9 is a side view showing a state in which a side plate is attached and a state in which the side plate is detached, in a modified example of the above embodiment. In these FIGS. 10 (a) and 10 (b), reference numeral 43 'designates housing left and right side walls 9b, 9c.
Of these, all the cleaning fins 21 on the side wall side are side plates fixed to the inner wall (however, in FIG.
Only the left side wall 9b side is shown in (a). This side plate 43 'has fixing bolts 44 inserted through through holes (not shown) provided at a plurality of positions (8 positions in the present embodiment) at the upper end and the lower end of the left and right side walls 9b, 9c. By being fastened to the screw hole 45 provided at a position corresponding to the through hole, the screw hole 45 is fixed to the housing body 9. In this modified example, the side plate 43 'constitutes a cleaner mounting member that fits into the opening from the outer peripheral side of the housing. In this modified example having the above-described structure, the same effect as that of the above-described embodiment of the present invention can be obtained, and by removing one side plate 43 ', all side walls on one side can be removed. Since the cleaning fin 21 can be removed, the workability of rotating tooth replacement work can be further improved.

In this case, the through holes 9B and 9C for inserting the cleaning fins 21 individually provided for the respective cleaning fins 21 on the left and right side walls 9b and 9c of the housing.
11, as shown in FIG. 11, one opening 9B ', 9C' which connects all the through holes 9B, 9C on the respective side walls.
(However, in FIG. 11, only the opening 9B ′ provided on the left side wall 9b is shown). In this modification, the openings 9B 'and 9C' constitute openings provided on the side surfaces, respectively.

[0055]

According to the present invention, the cleaner mounting member having the cleaner mounted on the inner peripheral side is fitted and fastened to the openings provided on both side surfaces in the direction perpendicular to the rotation axis of the housing of the shearing type crushing device. With the structure in which the member is fixed to the housing, the cleaner together with the cleaner mounting member can be easily removed to the outer peripheral side of the housing simply by loosening the fastening member. Thereby, workability at the time of exchanging the integral rotary teeth can be improved.

[Brief description of drawings]

FIG. 1 is a side view showing the overall structure of a self-propelled crusher equipped with an embodiment of a shear crusher of the present invention.

FIG. 2 is a top view showing the overall structure of a self-propelled crusher equipped with an embodiment of the shear crushing device of the present invention.

FIG. 3 is a front view seen from the direction A in FIG.

FIG. 4 is a top view showing a detailed structure of an embodiment of the shearing type crushing device of the present invention.

5 is a front view seen from the direction B in FIG.

6 is a cross-sectional view taken along the line VI-VI in FIG.

FIG. 7 is a side view as seen from the direction C in FIG.

FIG. 8 is a side view showing a state in which a side plate is removed in the embodiment of the shearing type crushing device of the present invention.

FIG. 9 shows a state in which a side plate of a modified example in which one cleaning fin is individually provided on one side plate is attached and detached in an embodiment of the shearing type crushing device of the present invention. It is a side view showing each.

FIG. 10 shows an embodiment of the shear-type crushing device of the present invention in which all cleaning fins on one side wall are
It is a side view showing a state where a side plate of a modification made into a structure provided in one side plate was attached, and a state where it was removed, respectively.

FIG. 11 shows an embodiment of the shear-type crushing device of the present invention in which all cleaning fins on one side wall are
FIG. 7 is a side view showing a state in which a side plate of a modified example in which all the through holes on the respective side walls are communicated with each other is provided as one opening, and is attached and removed, respectively, which is a structure provided in one side plate.

[Explanation of symbols]

1 Self-propelled Crusher 2 Hopper 3 Shear Crusher 5A Main Frame (Frame) 5B Traveling Device 6 Conveyor 9 Housing Main Body (Housing) 9B Through Hole (Opening) 9B 'Through Hole (Opening) 9b Left Side Wall (Side) ) 9C Through hole (opening) 9C 'Through hole (opening) 9c Right side wall (side) 12 Rotating shaft 13 Rotating tooth 17 Lid plate (area) 21 Cleaning fin (cleaner) 43a Side plate (cleaner mounting member) 43b Side Plate (cleaner mounting member) 43 'Side plate (cleaner mounting member) 44 Fixing bolt (fastening member)

Continued front page    (72) Inventor Jun Ikeda             Hitachi Construction Machinery Co., Ltd.             Ceremony Company Tsuchiura Factory (72) Inventor Kentaro Hashimoto             Hitachi Construction Machinery Co., Ltd.             Ceremony Company Tsuchiura Factory F-term (reference) 4D065 CA12 CB02 CC01 CC08 DD22                       EB01 EB02 EB14 EC09 ED06                       ED12                 4D067 DD04 GA02 GA06 GA18 GB03

Claims (7)

[Claims] 1. A housing, a rotary shaft provided in the housing in a substantially horizontal direction, a plurality of integral rotary teeth sequentially arranged on the rotary shaft, and a plurality of rotary teeth sequentially arranged. A plurality of cleaners arranged in a space formed by teeth, openings provided on two side surfaces of the housing that are located on one side and the other side of the housing in a direction perpendicular to the rotation axis, and the cleaner is attached. A shearing crushing device comprising: a cleaner mounting member that fits into the opening from the outer peripheral side of the housing; and a fastening member that fastens the cleaner mounting member to the housing. 2. The shear crushing device according to claim 1, wherein one cleaner mounting member is provided in common for each one of the side surfaces, and one common cleaner mounting member corresponds to the cleaner mounting member. A shearing type crushing device, characterized in that all the cleaners on the side surface are attached. 3. The shear type crushing apparatus according to claim 1, wherein a plurality of the cleaner mounting members are provided for one side surface, and the plurality of cleaner mounting members are provided on the corresponding side surface side. A shearing type crushing device, in which all the cleaners are shared and attached. 4. The shear crushing apparatus according to claim 3, wherein the plurality of cleaner mounting members are provided in the same number as the number of the corresponding side surface cleaners, and each cleaner mounting member includes one cleaner. A shearing type crushing device characterized by being attached to each. 5. A frame, a traveling device provided on the frame, a housing, a rotary shaft provided in the housing in a substantially horizontal direction, a plurality of integral rotary teeth sequentially arranged on the rotary shaft, A plurality of cleaners arranged in a space formed by the plurality of rotating teeth arranged in sequence, and two cleaners arranged on two side surfaces of the housing located on one side and the other side in a direction perpendicular to the rotation axis. An opening, the cleaner is attached to the cleaner, the cleaner attaching member is fitted into the opening from the outer peripheral side of the housing, and the fastening member is used to fasten the cleaner attaching member to the housing. The opening is provided on one longitudinal side of the frame. A shearing type crushing device, a hopper provided on an upper part of the shearing type crushing device, and the frame from a position below the shearing type crushing device. A self-propelled crusher, comprising: a conveyor extending to an outer position in the longitudinal direction of the. 6. A housing of a shearing type crushing device including a plurality of rotating shafts arranged in a substantially horizontal direction and a plurality of integral rotating teeth fixed to these rotating shafts, the housing being perpendicular to the rotating shafts. After the cleaner mounting member fitted from the outer peripheral side into the opening provided on the side surface on one side and the side surface on the other side is taken out of the housing together with the cleaner mounted therein, the axial direction of the rotary shaft of the housing. A region on one end side is opened to expose one end of the rotary shaft to the outside, and the rotary teeth are sequentially pulled out in the axial direction from the exposed one end side of the rotary shaft and taken out of the housing. Method for replacing rotary teeth of shear type crusher. 7. A housing of a shearing type crushing device including a plurality of rotating shafts arranged in a substantially horizontal direction, wherein an area of one end of the rotating shaft in the axial direction is opened and one end of the rotating shaft is opened to the outside. From the one end portion side of the exposed rotary shaft, a plurality of integral rotary teeth to be fixedly mounted on the rotary shaft are sequentially inserted in the axial direction and disposed in the housing, A cleaner mounting member having a cleaner attached in advance is fitted into the openings provided on one side surface and the other side surface of the housing in a direction perpendicular to the rotating shaft from the outer peripheral side so that the cleaner faces the rotating shaft side. A method of exchanging rotary teeth of a shear type crushing device, which comprises: