JPH0814204B2 - Crushing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can correct wear even if a sliding portion of a turning portion to which a great amount of force is applied is worn away, so that the crushing work is always performed in an optimum state. The present invention relates to a crusher which can be easily and quickly corrected for abrasion.

[Conventional technology]

In particular, when crushing reinforced concrete beams or columns, or when crushing reinforced concrete materials that are installed diagonally such as braces, in order to give shearing force by the crusher, make them orthogonal to each axial direction. It is ideal that the crushing is performed by shear crushing, and therefore, as a crusher that can be swung, there is, for example, JP-A-60-62373. According to this, even if the position of the hydraulic excavator main body is left unchanged, it is possible to crush the object to be crushed by making the angle of only the crusher freely orthogonal to the longitudinal direction of the crushed object. there were.

[Problems to be Solved by the Invention]

However, in order to crush such reinforced concrete beams and columns, even if the crushing machine rotates to a hostile position, the turning point of the crusher itself will always have an excessive bending moment of several tons. A heavy load is applied and play is generated very early at the turning point. Due to this backlash, not only the crushing ability is lowered this time, but also there is a serious drawback that the crushing becomes extremely difficult.

In order to force this backlash, it is necessary to make a large-scale modification of the entire crusher or replace the crusher, which not only interrupts the work but also poses a heavy risk. Furthermore, there is a serious drawback in that, in a narrow place where the crusher is turned over to an appropriate position, an object that should not be crushed, such as an adjacent wall, is crushed.

[Means for solving the problem]

Then, as a result of earnestly researching to solve the above-mentioned problems, the inventor found that the invention was to form a fixed jaw main body at the lower end of the opening of the crushing and crushing section, and use a large vertical split blade and a plurality of horizontal split blades. The movable jaw body fixed to the fixed jaw body is swingably mounted on the vertical surface of the fixed jaw body by the hydraulic mechanism, and the swivel plate fixed to the swivel crushing part is superposed on the mounting annular plate of the mounting body and fixed to the swivel plate. The mounting annular plate is clamped via a sliding spacer between the clamping nut screwed onto the outer periphery of the short tube portion and the swivel plate,
In addition, a swivel plate and a swirl crushing unit attached to the swivel plate are provided so as to be swivelable with respect to the mounting body, and a swirl restricting body that increases the swivel resistance at a desired swivel angle is provided as a crusher, or an opening of the swirl crusher is provided. A fixed jaw body is formed at the lower end of the fixed jaw body, and a movable jaw body to which a large vertical split blade and multiple horizontal split blades are fixed is provided on the vertical surface of the fixed jaw body in a swingable manner by a hydraulic mechanism. The fixed rotating plate is superposed on the mounting ring plate of the mounting body, and the mounting ring is sandwiched between the holding nut screwed to the outer periphery of the short pipe part fixed to the rotating plate and the rotating plate via a sliding spacer. The plate is sandwiched, and the swirl plate and the swirl crushing part attached to the swivel plate are provided so as to be swivelable with respect to the mounting body, and the inner peripheral side engaged part is formed on the tip circumference of the short pipe part to sandwich the plate. Multiple outer peripheral side engaged parts are formed on the circumference of the tip of the A crusher provided with a turning restricting body that engages the engaging portion across the inner peripheral side engaged portion and the outer peripheral engaged portion and increases the turning resistance at a desired turning angle, or Form a fixed jaw body at the lower end of the opening of the turning and crushing unit,
A movable jaw main body with a large vertical split blade and multiple horizontal split blades fixed is provided on the vertical surface of the fixed jaw body so that it can be swung by a hydraulic mechanism, and a swivel plate fixed to the swirl crushing part is attached to the mounting annular plate of the mounting body. Between the swivel plate and the sandwiching nut screwed onto the outer periphery of the short pipe portion fixed to the swivel plate, and sandwiching the mounting annular plate via a sliding spacer, and The installed crushing unit was installed so that it can rotate with respect to the mounting body, and the crushing machine was equipped with a turning stopper body at the desired turning angle position. However, the wear correction can be performed, and thus, the crushing work can be always performed in an optimum state, and the correction against wear can be easily and quickly performed, thereby solving the above problem.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 27.

First, there are three examples of the structure of the swirl crushing unit A. The swirl crushing unit A of the first embodiment is shown in FIGS. 1 to 5. Since the turning and crushing unit A can turn,
In order to specify the shape or the like, the one at the reference position is required, which is based on the position shown in FIG. Further, the members and elements provided in the turning and crushing section A are also in the positional relationship with reference to FIG. The same applies to the following description. The main body of the orbiting and crushing section A is provided with an opening 2 on the front side of the outer casing 1.

A fixed jaw body 3 is integrally provided at the lower end of the outer casing 1 on the opening 2 side so as to project outward. The fixed jaw body 3 has a human foot-like outer shape and is formed of a steel plate as a box. The upper surface (the surface facing the movable jaw body 4 to be described later) of the fixed jaw body 3 in the longitudinal direction. In the middle position,
Long support blades 3a, 3a, ... Which are vertical blades along the longitudinal direction are formed substantially parallel and at substantially equal intervals (4 in the drawings of the embodiment).
Book). The supporting blades 3a, 3a, ... Are actually fixed to the upper surface of the box-shaped portion so as to project slightly upward.
The tip side of the supporting blades 3a, 3a, ... End of the fixed jaw body 3 is orthogonal to the supporting blades 3a, 3a ,.
Is fixed, the tip side of the fixed jaw body 3, that is, the tip side from the connecting portion 3b, has a sharp tip when viewed from the side, and the upper surface thereof forms a flat surface 3c, which will be described later in the middle of the tip. A U-shaped storage portion 3d for storing the tip end side of the vertical split large blade 9 is formed.

4 is a movable jaw body, and the base 4a is the opening 2
Further, it is configured to be inserted into the outer casing 1 to be axially supported, and to be opened and closed on the fixed jaw main body 3. Specifically, the base 4a of the movable jaw 4 is pivotally supported by a shaft 5 provided at the lower end of the opening 2 of the outer casing 1 and swings on the vertical surface of the fixed jaw body 3. Has been done. The movable jaw body 4 has a substantially rectangular cross section and is hollow inside. The tip of the movable jaw body 4 (the side opposite to the base 4a) swells slightly upward,
A movable jaw tip shaft pestle 6 is provided. The tip of the piston rod 7a of the hydraulic cylinder 7 for opening and closing is pivotally supported by the movable jaw tip shaft rod 6, and the middle portion of the cylinder body 7b in the longitudinal direction is pivotally supported by the outer casing 1. On the lower surface side of the movable jaw body 4 (the surface facing the fixed jaw body 3), at both ends in the width direction,
A plurality of lateral dividing blades 8, 8, ... Are provided at predetermined intervals. Further, at the middle of the movable jaw body 4 in the width direction, between the lateral dividing blades 8, 8, ... A large vertical split blade with a large diameter abacus halved in the rear position 9,9
Are provided along the swing surface of the movable jaw body 4 (the cut surface is substantially coincident with the swing plane of the movable jaw body 4).
The horizontal dividing blade 8 also has a shape in which the abacus is halved and both sides thereof are cut, and the blade surface has an arc shape (see FIGS. 8 and 9).

In the second embodiment of the swirl crushing part A, as shown in FIGS. 6 and 7, the fixed jaw body 3 is the same as the swirl crushing part A of the first embodiment, and the first embodiment thereof is the same. Movable jaw body 4
Of the laterally dividing blades 8, 8 ... Are fixed to the movable jaw body 4 by substituting two on both sides of the tip position of the movable jaw body 4 for the substantially rectangular pressing bodies 10. Further, the lower surfaces of the pressing bodies 10, 10 are configured such that when the movable jaw body 4 is closed (see FIG. 7), the lower surface overlaps with the flat surface 3c at the tip of the fixed jaw body 3. There is.

In the third embodiment of the swirling and crushing section A, FIGS.
As shown in the drawings, the same components as those in the first embodiment (see FIGS. 1 to 5) are designated by the same reference numerals and the description thereof will be omitted. The intermediate portion of the fixed jaw body 3 of the orbiting and crushing portion A of the third embodiment is configured similarly to the first embodiment, as shown in FIGS. 10 and 13, and in particular, both inner positions thereof are supported. Blade 3
A storage portion 3d for storing the large vertical split blade 9 is formed between a and 3a and on the side of the connecting portion 3b. For this reason, the movable jaw body 4 of the first embodiment is provided so as to be located rearward of the tip side of the vertically dividing large blade 9. Further, the tip side of the fixed jaw body 3 is provided with a plurality of tip vertical blades 3e, 3e, ... at predetermined intervals, and in the meantime, a horizontal dividing blade on the tip side of the movable jaw body 4 is provided.
8 and 8 are provided so that they can be stored. As a result, the positions of the horizontal dividing blades 8, 8, ... Are provided so as to be located on the tip side with respect to the positions of the horizontal dividing blades 8, 8, ... of the first embodiment.

Further, on the base side of each of the movable jaw body 4 and the fixed jaw body 3, the fixed jaw body 3 has a fixed cutting blade 11a for cutting the reinforcing bar, and the movable jaw body 4 has a movable cutting blade for cutting the reinforcing bar. The movable cutting blades 11b and the fixed cutting blades 1b are fixed to the fixed jaw body 3 when the movable jaw body 4 is closed.
1a and the shearing action.

The rear side of the outer casing 1 (on the side opposite to the opening 2 shown in FIG.
A swivel plate 12 is fixed to the left side in FIG.
The swivel plate 12 is provided with a swivel position restriction structure described later. Next, the turning mechanism and the turning restriction mechanism will be described with reference to FIGS. 15 to 24. B is a mounting body, and two brackets 14, 14 facing the mounting annular plate 13 are provided.
The base of is fixed. The mounting annular plate 13 has an annular shape with an enlarged through hole formed in the center thereof, and the inner periphery thereof is formed as an inner peripheral flange portion 13a.

A short pipe portion 15 is fixed to the periphery of the circular hole portion at the substantially center of the disc-shaped swirl plate 12 at the rear part of the swirl crushing portion A and which coincides with the axis oriented in the direction perpendicular to the plate. An outer screw portion 15a is threaded on the outer peripheral surface on the tip side of the short pipe portion 15, and the short pipe portion 15 is formed.
Inner peripheral side engaged portions 15b, 15b, ... Such as a plurality of concave portions are formed at the peripheral edge of the tip end of the concave portion. In the example, 12
It is divided evenly (see Figure 20). The short tube portion 15 is loosely inserted into the through hole of the mounting annular plate 13. And the clamping nut
The inner screw portion 16a of 16 is screwed into the outer screw portion 15a of the short pipe portion 15,
By this screwing, the lower surface of the clamping nut 16 and the upper surface of the swivel plate 12 hold an appropriate clamping force for the inner peripheral flange portion 13a of the mounting annular plate 13, and the inner peripheral flange portion 13a is attached. A swivel plate 12 to which a swirl crushing section A is fixed is rotatably provided to the annular plate 13. The pressing lower surface of the clamping nut 16 is configured to press the surface of the inner peripheral flange portion 13a, and the outer peripheral side engaged portion 16 such as a concave portion is opposed to the peripheral edge of the leading end by about 180 degrees.
b and 16b are formed. It is provided so that the cross-sectional size of the outer peripheral side engaged portion 16b and the cross-sectional size of the inner peripheral side engaged portion 15b of the short pipe portion 15 match.

17 is a lock lid part, and about 18
Engaging portions 17a, 17a such as convex portions are formed facing each other at 0 degrees.
The engagement portion 17a is provided so as to engage across the inner peripheral side engaged portion 15b of the short pipe portion 15 and the outer peripheral side engaged portion 16b of the sandwiching nut 16. In the embodiment, the inner peripheral side engaged portion 15b and the outer peripheral side engaged portion 16b are formed as concave portions, and the engaging portion 17a is formed as a convex portion, but the inner peripheral side engaged portion 15b. And the outer peripheral side engaged portion 16b is formed as a convex portion,
The engaging portion 17a may be formed as a recess, and the engagement is not limited to the embodiment as long as the engagement is reliable.

Reference numeral 18a denotes an annular L-shaped sliding spacer for the inner circumference, and 18b denotes an annular sliding spacer for the inner circumference. The outer surface of the rising portion of the L-shaped sliding spacer for the inner circumference 18a is the inner circumference flange portion 13a of the previous term. The inner peripheral surface is in contact with the lower surface of the inner peripheral flange portion 13a and the flat portion thereof.
It is provided so as to be sandwiched between the inner peripheral side surfaces of the. The inner peripheral sliding spacer 18b is configured to be sandwiched between the sandwiching nut 16 and the inner peripheral flange portion 13a of the mounting annular plate 13. In addition, the annular outer sliding spacer 19
Is configured to be sandwiched between the spacer annular groove 13b on the outer periphery of the mounting annular plate 13 and the outer peripheral surface of the swivel plate 12. Holes 19a, 19 are provided on the circumferential surface of the outer peripheral sliding spacer 19.
are divided into a plurality of parts (see FIG. 19). In the embodiment, four 90-degree positions are equally divided. Further, a plurality of countersink holes 12a, 12a, ... Are equally divided on the circumferential surface of the swivel plate 12 at positions on the circumference of the hole portions 19a, 19a ,.
In the embodiment, it is formed into 12 equal parts at every 30 degree position (see FIG. 21).

Reference numeral 20 denotes a turning restricting body, the open side of the cylindrical case 20a is attached to a plurality of holes on the circumference of the mounting annular plate 13, and the restricting balls 20b are the countersink 12a of the turning plate 12 and the case 20a.
It is interposed via a hole 19a of the outer peripheral sliding spacer 19 between the compression coil spring 20c and the pressing piece 20d provided by the pressing. An adjusting lid 20e for adjusting the compression strength of the compression coil spring 20c is screwed onto the inner periphery of the upper position of the case 20a.

Reference numeral 21 denotes a turning stopper body, which is provided at a position slightly inner peripheral than the inner peripheral positions of the holes 19a, 19a, ... Of the outer peripheral sliding spacer 19 and rotates between the mounting annular plate 13 and the rotating plate 12. Is to stop. Specifically, as shown in FIGS. 17 and 19, the turning stopper pin 21a, which is constantly urged downward by the compression coil spring 21b, is inserted into the through hole 13c provided at a proper position of the mounting annular plate 13. The tip is inserted, and the tip is locked in a hole 12b provided at an appropriate position of the swivel plate 12, so that the swivel plate 12 is fixed to the mounting annular plate 13 and cannot swivel. is there. The holes 12b are provided at four positions, and the turning is stopped at each position. In the embodiment, it is set to 90 degrees, but it may be set to 60 degrees, 45 degrees, or even 30 degrees.

The L-shaped sliding spacer 18a for the inner circumference, the sliding spacer 18b for the inner circumference, and the sliding spacer 19 for the outer circumference described above are collectively referred to simply as a sliding spacer.

Reference numeral 22 in the drawing denotes an oil passage joint, which is housed inside the short pipe portion 15. Specifically, the two external oil passages are branched into two ports of the columnar branch main body 22a and are branched into independent ports provided in the case 22b enclosing the columnar branch main body 22a. It is provided so as to be continuous with the port of the cylinder 7. The oil passage joint 22 is appropriately rotated so that the oil passage is not twisted even if the turning and crushing portion A is rotated. Reference numeral 23 is a hydraulic excavator body, 24 is a main arm, 25 is a sub arm, and 26a and 26b are swing links. 27, 28 and 29 are the first, second and third hydraulic cylinders, and C is the crushed object.

〔The invention's effect〕

First, in the invention of claim 1, a movable jaw in which a fixed jaw main body 3 is formed at the lower end of the opening 2 of the orbital crushing portion A, and a vertically dividing large blade 9 and a plurality of horizontally dividing blades 8, 8, ... Are fixed. The main body 4 is provided on the vertical surface of the fixed jaw main body 3 so as to be swingable by a hydraulic mechanism,
The swivel plate 12 fixed to the swirl crushing portion A is superposed on the mounting annular plate 13 of the mounting body B, and the swivel plate 12 of the sandwiching nut 16 screwed to the outer circumference of the short pipe portion 15 fixed to the swirl plate 12 is provided. The mounting annular plate 13 is sandwiched by a sliding spacer, and the swivel plate 12 and the swirl crushing part A attached thereto are provided so as to swivel with respect to the mounting body B, and swivel at a desired swivel angle. Since the crusher is provided with the turning regulation body 20 for increasing the resistance, first, even if the sliding portion of the turning portion where a great amount of force is applied is worn away, the correction can be made, and thus the optimum state is always maintained. Therefore, the crushing work can be performed, and secondly, the abrasion can be corrected easily and quickly.

Explaining these effects in detail, the hydraulic excavator body 23
The excavator and the crusher of the present invention are exchanged at the end of the sub arm 25 provided in the, and the piston rod 7a is appropriately moved back and forth by its hydraulic drive, and the fixed jaw main body 3 is moved through the base 4a of the movable jaw main body 4. Swing on the vertical surface of to cut and crush reinforced concrete. Then, as shown in FIGS. 25 to 26, according to the present invention, the swirl crushing part A is rotatably provided on the mounting body B, and the swirl crushing part A is appropriately positioned even for diagonal members. It can be turned to and cut very well.

Conventionally, for diagonal materials, etc.,
When it is crushed, an excessive load of several tons is always applied as a bending moment or impact load to the turning point of the crusher itself. That is, it is a dismantling site where the location where the crusher is used is not specified, and while the hydraulic excavator main body 23 is being operated, the tip side of the movable jaw 4 provided in the swing crushing section A is It is often hit by impact, and the object to be crushed C is often pulled or pushed while crushing. By doing so, the fulcrum of the crusher is originally the end of the auxiliary arm 25 and the swing link 26b. Its swivel plate because it is an edge 1
Tons of excessive load are constantly generated at two points as bending moment or impact bending moment. However, if the crusher is securely stopped and used in a state where the shearing direction is orthogonal to the crushed object C, the bending moment or impact load is hardly applied as described above, but in the actual site. However, this is impossible, and the excessively large bending moment or impact load causes the sliding portion at the turning point to be worn away, resulting in very early play. Due to this backlash, not only the crushing ability is lowered, but also there is a serious drawback that the crushing becomes extremely difficult.

Under such circumstances, in the present invention, the swirl plate 12 fixed to the swirl crushing portion A is superposed on the mounting annular plate 13 of the mounting body B,
The mounting annular plate 13 is sandwiched between the swivel plate 12 and a sandwiching nut 16 screwed onto the outer circumference of the short pipe portion 15 fixed to the swivel plate 12, and the swivel plate 12 is sandwiched. Further, since the swiveling and crushing part A attached to this is provided so as to be swivelable with respect to the mounting body B, even if the sliding spacer of the swiveling part is worn away during the crushing work, the pinching nut 16 is fixed by tightening. By doing so, it is possible to correct the slackness of the mounting annular plate 13 to be clamped to obtain an appropriate clamping interval, and to eliminate the inconvenience due to the abrasion of the sliding spacers, which can prevent the swinging and crushing part A from rattling. The crushing ability does not decrease, and the crushing work is always performed in an optimum state, which is extremely effective.

To explain the action concretely, as shown in FIG. 22, when the sliding spacers have different wear thicknesses ΔL ₁ , ΔL ₂ and ΔL ₃ , they may be the same, but Accordingly, the clamping nut 16 is tightened from the state shown in FIG. 23 to the state shown in FIG. 24, and rattling can be prevented with a tightening amount of ΔL ₀ . In addition, the correction operation with play is completed only by appropriately tightening the clamping nut 16,
It has the advantage of being extremely simple and quick, and there is no need for extensive repairs of the entire crusher or replacement of the crusher at all, as in the past.

Further, since the sandwiching nut 16 is inevitably located outside due to its structure, there is an advantage that operations such as tightening can be simplified.

Next, in the invention of claim 2, in the invention of claim 1, the inner peripheral side engaged portion is provided on the tip circumference of the short tube portion 15.
15b is formed, a plurality of outer peripheral side engaged parts 16b are formed on the tip circumference of the clamping nut 16, and an engaging part 17a provided on the circumference of the locking lid part 17 is formed on the inner peripheral side engaged part. 15b and outer peripheral side engaged portion 16b
Due to the engagement between the and, it is possible to securely prevent the place where the clamping nut 16 is loosened and tends to rotate due to the strong engagement, and it is possible to eliminate sudden rattling during work. It has the effect of ensuring the safety and speed of work.
The other structure is the same as that of the first aspect of the invention, and an effect equivalent to this can be exhibited.

Further, in the invention of claim 3, in the invention of claim 1, the turning stopper body 21 is provided at a desired turning angle position, so that the turning angle is appropriately adjusted and used at that position. Therefore, the movement of the crusher of the present invention can be controlled. Specifically, conventionally, depending on the crushing site, if the crusher is turned over at an appropriate position in a narrow place, the object that should never be crushed originally, for example, a neighbor very close to the crushing site. There was also a serious drawback of crushing the walls and the like during the turning action.

However, in the present invention, although the crushing ability may be halved, it is possible to crush in a crushing trajectory that does not damage adjacent objects, and it is possible to crush only the crushed object C reliably even in a narrow place, and You can work with peace of mind.

The other structure is the same as that of the invention of claim 1, and the same effect as this can be exhibited.

As described above, according to the present invention, even if the longitudinal direction of the crushed object C is any direction, the crushed object C can be crushed in an optimum state so as to be orthogonal to the longitudinal direction, and further, various crushing occurs. The rattling of the turning portion can be corrected very easily and quickly, and further, even in an extremely narrow place, only the object C to be crushed can be crushed surely without damaging other objects.

[Brief description of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal side view of the present invention, FIG. 2 is a state diagram showing a turning state of the present invention, and FIG. 3 is FIG. 1 III-III. Sectional view in the direction of the arrow, FIG. 4 is a perspective view of FIG. 1, FIG. 5 is a perspective view of the movable jaw body,
FIG. 6 is a perspective view of a distal end portion of a movable jaw body according to another embodiment of the present invention, FIG. 7 is a side view of essential parts showing the action of FIG. 6, and FIG.
FIG. 9 is a sectional view of the movable jaw body, FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8, and FIG. 10 is a sectional view of another embodiment of the present invention.
FIG. 12 is a state diagram showing the turning state of FIG. 10, and FIG. 12 is FIG. 10P.
-P arrow sectional view, FIG. 13 is a perspective view of FIG. 10, and FIG.
Fig. 13 is a perspective view of the movable jaw main body, Fig. 15 is a sectional view of a swivel portion, Fig. 16 is a partially cutaway perspective view of Fig. 15, Fig. 17 is a sectional view of a swivel stopper body portion, Fig. 18 Figure is a sectional view of the turning point, Figure 19 is an exploded sectional view of the turning point, Figure 20 is an exploded perspective view of the main members of the turning point, Figure 21 is a front view of the end of the base of the turning and crushing section, 22 is a sectional view of the spacer, FIG. 23,
FIG. 24 is a perspective view showing a tightened state of the locking lid,
Fig. 26 is a schematic view showing a working state, and Fig. 27 is a side view showing the present invention attached to a shovel loader. A: swivel crushing section, B: mounting body, 2 ... opening, 3 ... fixed jaw body, 4 ... movable jaw body, 8 ... horizontal split blade, 9 ... vertical split large blade, 12 ... … Swivel plate, 13 …… Mounting annular plate, 15 …… Short pipe part, 15b …… Inner peripheral side engaged part, 16 …… Clamping nut, 16b …… Outer peripheral side engaged part, 17 …… Lock Lid part, 17a ...... engagement part, 20 ... Turning control body, 21 ... Turning stopper body.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuo Watanabe, 314 Chikusa-cho, Chiba-shi, Chiba Sakado Manufacturing Co., Ltd. (72) Inventor Shigemasa Yoshino 1-42-4 Ogikubo, Suginami-ku, Tokyo

Claims (3)

[Claims] 1. A movable jaw body having a fixed jaw main body formed at the lower end of the opening of the orbital crushing section, and having a large vertical split blade and a plurality of horizontal split blades fixed to the hydraulic mechanism on the vertical surface of the fixed jaw main body. Between the swivel plate and the clamping nut screwed to the outer circumference of the short pipe part fixed to the swivel plate. In addition, a rotation regulation that sandwiches the mounting annular plate via a sliding spacer, and is provided with a swivel plate and a swirl crushing part attached thereto so as to swivel with respect to the mounting body to increase swivel resistance at a desired swivel angle. A crusher characterized by having a body. 2. A movable jaw body having a fixed jaw main body formed at the lower end of the opening of the orbital crushing section and having a large vertical split blade and a plurality of horizontal split blades fixed thereto, and a hydraulic mechanism on the vertical surface of the fixed jaw main body. Between the swivel plate and the clamping nut screwed to the outer circumference of the short pipe part fixed to the swivel plate. , The mounting annular plate is sandwiched by a sliding spacer, and a swivel plate and a swirl crushing part attached to the swivel plate are provided so as to be swivelable with respect to the mounting body, and the inner circumference side is provided on the tip circumference of the short pipe part. An engaged portion is formed, a plurality of outer peripheral side engaged portions are formed on the circumference of the tip of the sandwiching nut, and an engaging portion provided on the circumference of the locking lid portion is referred to as an inner peripheral side engaged portion. A crusher characterized by being provided with a turning restricting body which is engaged across the outer peripheral engaged portion to increase the turning resistance at a desired turning angle. 3. A movable jaw main body having a fixed jaw main body formed at the lower end of the opening of the orbital crushing section, and having a large vertical split blade and a plurality of horizontal split blades fixed thereto, and a vertical mechanism of the fixed jaw main body being used as a hydraulic mechanism. Between the swivel plate and the swivel plate fixed to the swivel crushing part is overlapped with the mounting annular plate of the mounting body, and the swivel plate is screwed onto the outer periphery of the short pipe part fixed to the swivel plate. , The mounting annular plate is sandwiched via sliding spacers, and a swivel plate and a swirl crushing part attached thereto are provided so as to be swivelable with respect to the mounting body, and a swivel stopper body is provided at a desired swivel angle position. A crusher characterized by that.