JPH10299267A - Crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To bring out breakability, by arranging a nearly disk-shaped cutting member installed in a fixed jaw or a movable jaw in the jaw body to be rotatable and detachable and exchanging the cutting member into a new member when the cutting member has been worn out. SOLUTION: A pin 15 for a disk-shaped cutting member is inserted in a pin hole formed at the lower face of a movable jaw 8 and a pin hole passing the axial center of the disk-shaped cutting member 14. In this case, a groove piercing a part of the jaw body 8 in the longitudinal direction of the movable jaw body 8 is formed in the fitting part 19 of the disk-shaped cutting member 14 to contain a part of the member. When breaking some materials by using this crusher, the breaking fixed cutter position against breaking materials of the member is altered in sequence to use the whole outer periphery of the cutting member in sequence. In this way, the durable life of the cutting member is retained for a long time and the cutting member can be exchanged to a new cutting member by removing it when it has been worn out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher mainly mounted on a working machine of a construction machine and used for crushing rocks, concrete and the like.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view showing an embodiment of a crusher 31 described in Japanese Patent Publication No. 2-27504. FIG. 7 is a perspective view of a main part of the movable jaw main body 3 of the crusher 31 in FIG. 6 as viewed obliquely from below. In the crusher 31 shown in FIGS. 6 and 7, the base of the movable jaw main body 3 is pivotally supported by the outer housing 1, and the fixed jaw main body 6 corresponding to the movable jaw main body 3 is fixed to the outer housing 1, and the movable jaw main body 3 is moved. A plurality of downward sharp teeth 5 project from left and right sides of the lower surface of the jaw body 3, and a large push splitting blade 22 having a large diameter abacus halved substantially at the center of the lower surface of the distal end of the movable jaw body 3 is provided. Hydraulic cylinder 13 for jaw body 3
Can be swung. When the movable jaw main body 3 is closed, the forked blades 24, 24 are formed so that the large press splitting blade 22 can be inserted into the distal end side of the fixed blade rod 6a at the center position.

FIG. 8 is a sectional view showing another embodiment of a crusher 32 described in Japanese Utility Model Publication No. Hei 3-15612. FIG. 9 is a perspective view showing the crushing protrusion 33 in FIG. In the crusher 32 shown in FIGS.
A crushing projection 33 having a disk-like shape or a part thereof formed sharply from the center of the diameter to the outer peripheral edge is detachably attached to the tip end of 4 via a connecting body 35.

FIG. 10 is a front view showing a crusher 36 according to another embodiment described in Japanese Patent Application Laid-Open No. 7-137373. FIG. 11 is a front view of the claw 37 in FIG. In the crusher 36 shown in FIG. 10 and FIG. 11, the claws 37 welded to the distal ends of the left and right arms 38, 38 'of the crusher 36 are exposed so that they are exposed when they are worn to a state to be replaced. A color steel material 39 of a color different from that of the nail body is embedded in the center.

[0005]

In the crusher 31 according to one embodiment of the prior art shown in FIGS. 6 and 7, the shape of the large diameter abacus, which is welded to substantially the center of the lower surface of the front end of the movable jaw body 3, is reduced to approximately half. When the large press split blade 22 is worn, it is difficult to replace the large press split blade 22. Therefore, the movable jaw body 3 that has not been worn must be replaced, which is very uneconomical. In a crusher 32 according to another embodiment of the prior art shown in FIGS. 8 and 9, a connecting body 35 to which a crushing projection 33 is welded is detachably attached to a distal end portion of a movable blade body 34. Therefore, when the crushing protrusion 33 is worn, it may be replaced with a new connector 35 with a new crushing protrusion 33.
In order to reuse the old connection body 35 that has been removed, the worn old crushing ram 33 is gas-cut and the new crushing ram 3 is re-used.
3 has to be welded, so that the welding work is tedious, expensive and uneconomical. In a crusher 36 according to another embodiment of the prior art shown in FIGS. 10 and 11, when the claw 37 is worn, the arms 38, 3 of the claw 37 are used.
A new claw 37 must be welded after gas-cutting the welded portion to 8 'and taking care of the cut marks. Therefore, the welding operation must be performed when the crusher 36 is not used, and the welding operation requires a great deal of labor and cost, which is uneconomical. According to the present invention, at least one of a fixed jaw body and a movable jaw body of a crusher is provided with a substantially disk-shaped disc-shaped blade member, and the disc-shaped blade member is rotatable with respect to the jaw body, and is detachable. It is an object of the present invention to provide a crusher adapted to be mounted on a crusher.

[0006]

According to the present invention, there is provided a crusher having a frame main body, a fixed jaw integrally provided on the frame main body, and a movable jaw provided swingably on the frame main body. Wherein at least one of the fixed jaw body and the movable jaw body is provided with a substantially disk-shaped disk-shaped blade member, and the disk-shaped blade member is rotatably and detachably attached to the jaw body. I made it. Further, the disk-shaped blade member has a fixed blade whose longitudinal direction is orthogonal to the blade member. In the case described above, the disc-shaped blade member mounting portion of at least one of the fixed jaw body and the movable jaw body has a groove formed in the longitudinal direction of the jaw body and through a part of the jaw body. And at least a part of the disc-shaped blade member is accommodated in the groove. Further, the disc-shaped blade member has a top along the longitudinal direction of the jaw body on the circumference thereof. Also, depending on the disk-shaped blade member,
A plurality of projections were provided on the circumference.

In the present invention, a substantially disk-shaped disk-shaped blade member is rotatably attached to at least one of the fixed jaw and the movable jaw of the crusher. Therefore, when the crushing operation is performed using the crusher, the fixed blade for crushing the object to be crushed by the disk-shaped blade member can be sequentially changed. That is, since the entire outer periphery of the disk-shaped blade member can be used sequentially, the service life of the disk-shaped blade member can be maintained for a long time. Further, since the disk-shaped blade member is detachably attached to the jaw body, when the disk-shaped blade member is worn, it is possible to remove the disk-shaped blade member and replace it with a new disk-shaped blade member. it can. Further, since the disc-shaped blade member mounting portion and the groove in the longitudinal direction of the jaw are formed in at least one of the fixed jaw and the movable jaw, at least one of the disc-shaped blade members is formed in the groove. The part can be in a housed state. In addition, since the disk-shaped blade member is formed in a shape having a top along the longitudinal direction of the jaw body on its circumference, for example, a substantially abacus bead shape, it can exhibit a sufficient function as a crushing blade. Further, among the disc-shaped blade members, those having a plurality of protrusions on the circumference thereof can exhibit crushing property against a material to be crushed such as rock or concrete due to the high hardness of the protrusions. .

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a crusher 2 showing one embodiment of the present invention. In the figure, 4 is a frame main body of the hydraulic crusher 2, 8 is a movable jaw body, 9 is a pin for pivotally supporting the base of the movable jaw body 8 to the frame main body 4, and 10 is a pin hole through which the pin 9 is inserted. , 11 are hydraulic cylinders,
12 is a fixed jaw integrally provided on the frame body 4, 14 is a disk-shaped blade member, 15 is a pin for a disk-shaped blade member,
Reference numeral 16 denotes downward sharp blades provided on both left and right sides on the lower surface side of the movable jaw body 8, and reference numerals 17 and 18 denote cutting blades for cutting a reinforcing bar or the like. FIG. 2 is an enlarged view of a portion A in FIG. In the figure,
(0-0) is the axis of the pin 9 for supporting the movable jaw body 8 (pin 9
, But is represented by a single point in FIG. 2),
(0′-0 ′) is the axis of the disk-shaped blade member pin 15 (the center line of the disk-shaped blade member pin 15 but represented by one point in FIG. 2). FIG. 3 is a cross-sectional view of a main part taken along line BB of FIG. In the drawing, reference numeral 19 denotes a disk-shaped blade member mounting portion provided at the center of the lower end portion of the movable jaw body 8 on the distal end side, and reference numeral 20 denotes a disk-shaped blade member pin 15 penetrated into the disk-shaped blade member mounting portion 19. Pin hole 21 is a disc-shaped blade member 1
4 is a pin hole for inserting the disc-shaped blade member pin 15, 23 is a nut member screwed to prevent the disc-shaped blade member pin 15 from coming off, and 27 is a longitudinal direction of the movable jaw body 8. And a groove formed through a part of the movable jaw 8.
In addition, the code | symbol T shown in FIG. 3 shows the top part formed in the circumference as a shape of the disk-shaped blade member 14. As shown in FIG. FIG. 4 is a perspective view showing a disk-shaped blade member 14a according to an embodiment of the present invention. In the figure, reference numeral 25 denotes a fixed blade formed in a gear shape whose longitudinal direction is orthogonal to the disk-shaped blade member 14a. FIG.
FIG. 9 is a perspective view showing a disc-shaped blade member 14b according to another embodiment of the present invention. In the figure, 26 is a disk-shaped blade member 14b
And a plurality of protrusions having high hardness provided on the circumference.

Next, the configuration of the crusher 2 of this embodiment is shown in FIG.
5 will be described. In the present embodiment, the base of the movable jaw 8 is pivotally supported on the frame main body 4 by a pin 9, the movable jaw 8 can be rocked by a hydraulic cylinder 11, and meshes with the movable jaw 8. In the crusher 2 in which the fixed jaw body 12 is formed integrally with the frame main body 4, the movable jaw body 8 is provided with a substantially disk-shaped disk-shaped blade member 14, and the disk-shaped blade member 14 is provided with the movable jaw body 14. 8 is rotatably and detachably attached to the disk-shaped blade member attachment portion 19 provided in the apparatus. That is, a pin hole 20 of the disc-shaped blade member mounting portion 19 formed on the distal end side of the lower surface portion of the movable jaw body 8,
The pin 15 for the disc-shaped blade member was inserted through the pin hole 21 passing through the axis of the disc-shaped blade member 14. Further, as an example of the disk-shaped blade member 14, the disk-shaped blade member 14a as shown in FIG. 4 has a gear-shaped fixed blade 25 whose longitudinal direction is orthogonal. In the above case, the disc-shaped blade member mounting portion 19 forms a groove 27 (shown in FIG. 3) in the longitudinal direction of the movable jaw 8 and through a part of the movable jaw 8. At least a part of the disc-shaped blade member 14 is accommodated in the groove 27. The disk-shaped blade member 14 has a top portion T (shown in FIG. 3) on the circumference thereof along the longitudinal direction of the movable jaw body 8. In addition, as shown in FIG. 5, the disk-shaped blade member 14b of another embodiment has a plurality of protrusions 26 on its circumference.

Next, the operation of the crusher 2 of the present embodiment will be described. In this embodiment, a substantially disk-shaped disk-shaped blade member 14 is rotatably attached to the movable jaw body 8 of the crusher 2. Therefore, when the crushing operation is performed using the crusher 2, the fixed blade position for crushing the disk-shaped blade member 14 with respect to the crushed object (for example, the disk-shaped blade member 14 shown in FIG. 4).
(referred to as the position of the fixed blade 25 on the circumference of the circle a). That is, since the entire outer periphery of the disk-shaped blade member 14 can be sequentially used, the service life of the disk-shaped blade member 14 can be maintained for a long time. Further, since the disk-shaped blade member 14 is detachably attached to the movable jaw body 8, when the disk-shaped blade member 14 is worn, the disk-shaped blade member 14 is removed and a new disk-shaped blade member 14 is removed. It can be replaced with a blade member (14). Further, since the disk-shaped blade member 19 and the groove 27 in the longitudinal direction of the movable jaw 8 are formed on the movable jaw 8, the groove 2
7, at least a part of the disc-shaped blade member 14 can be stored. The disk-shaped blade member 14
Is formed in a shape having a top portion T (shown in FIG. 3) along the longitudinal direction of the movable jaw body 8 on its circumference, for example, a substantially abacus bead shape, so that it can exhibit a sufficient function as a crushing blade. it can. In the disk-shaped blade member (14), the disk-shaped blade member (14b) having a plurality of projections (see FIG. 5) on its circumference has a high hardness due to the high hardness of the projections (26). It can exhibit the crushing property against the material to be crushed such as concrete.

[0011]

According to the present invention, a substantially disk-shaped disk-shaped blade member is rotatably mounted on at least one of the fixed jaw and the movable jaw of the crusher. Therefore, when the crushing operation is performed using the crushing machine, the position of the fixed blade for crushing the disk-shaped blade member with respect to the crushed object can be sequentially changed. That is, since the entire outer periphery of the disk-shaped blade member can be used sequentially, the service life of the disk-shaped blade member can be maintained for a long time. Further, since the disk-shaped blade member is detachably attached to the jaw body, when the disk-shaped blade member is worn, it is possible to remove the disk-shaped blade member and replace it with a new disk-shaped blade member. it can. Further, since the disc-shaped blade member and the groove in the longitudinal direction of the jaw are formed in at least one of the fixed jaw and the movable jaw, at least a part of the disc-shaped blade is formed in the groove. It can be stored. In addition, since the disk-shaped blade member is formed in a shape having a top along the longitudinal direction of the jaw body on its circumference, for example, a substantially abacus bead shape, it can exhibit a sufficient function as a crushing blade. Further, among the disc-shaped blade members, those having a plurality of protrusions on the circumference thereof can exhibit crushing property against a material to be crushed such as rock or concrete due to the high hardness of the protrusions. . Therefore, in a construction machine or the like equipped with the crusher of the present invention, workability and economic efficiency in crushing work can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a crusher showing one embodiment of the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a cross-sectional view of a main part taken along line BB in FIG.

FIG. 4 is a perspective view showing a disk-shaped blade member according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a disk-shaped blade member according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a crusher according to an embodiment of the prior art.

FIG. 7 is a perspective view of a main part of the movable jaw main body of the crusher shown in FIG. 6, as viewed obliquely from below.

FIG. 8 is a sectional view showing a crusher according to another embodiment of the prior art.

FIG. 9 is a perspective view showing a crushing protrusion in FIG. 8;

FIG. 10 is a front view showing a crusher according to another embodiment of the prior art.

FIG. 11 is a front view of the nail shown in FIG. 10;

[Explanation of symbols]

 2,31,32,36 Crusher 4 Frame body 8 Movable jaw 9 Pin 10,20,21 Pin hole 11,13 Hydraulic cylinder 12 Fixed jaw 14,14a, 14b Disc-shaped blade member 15 Disc-shaped blade member pin 19 Disk-shaped blade member mounting part 27 Groove part

Claims (6)

[Claims] 1. A crusher having a frame main body, a fixed jaw integrally provided on the frame main body, and a movable jaw provided swingably on the frame main body, wherein the fixed jaw or the movable jaw is movable. A crushing machine, wherein a substantially disk-shaped blade member is provided on at least one of the jaws, and the disk-shaped blade member is rotatably and detachably attached to the jaw body. 2. The crusher according to claim 1, wherein said disk-shaped blade member has a fixed blade whose longitudinal direction is orthogonal to the blade. 3. The disc-shaped blade member mounting portion of at least one of the fixed jaw body and the movable jaw body, a groove is formed in a longitudinal direction of the jaw body, and the disc-shaped blade member is formed in the groove. The crusher according to claim 1, wherein at least a part of the crusher is stored. 4. The crusher according to claim 3, wherein said groove is formed through said jaw body. 5. The crushing machine according to claim 1, wherein the disk-shaped blade member has a top along a longitudinal direction of the jaw body on a circumference thereof. 6. The crusher according to claim 1, wherein said disk-shaped blade member has a plurality of projections on its circumference.