JPH04300654A - Crusher - Google Patents

Abstract

PURPOSE:To enhance the efficiency of crushing work by providing a vibration mechanism vibrating the movable arm supported on a frame in order to finely crush and grind the object to be crushed held between the movable arm and the crushing arm provided in opposed relation to the movable arm. CONSTITUTION:The connection bracket 1 of a crusher A is connected to a power shovel and a frame 3 is connected to the lower end of the bracket 1 through a rotary connection mechanism 2. The lower end of the frame 3 supports a pair of left and right movable arms 10, 10 in opposed relationship in a shakable manner through support shafts 9 and cutters 11 are provided to the both movable arms 10 in the vicinity of the central parts thereof. The base end part of a pressure crushing cylinder 12 supports the vibration shaft 13 of a vibration motor and the upper end part of one movable arm 10 is connected to the cylinder through the vibration shaft 13 and the upper end part of the other movable arm 10 is connected to the cylinder rod 12b of the pressure crushing cylinder 12 through a connection shaft 47. When the vibration shaft 13 is rotated, one movable arm 10 is vibrated in a shaking direction by the eccentric rotation of the vibration shaft 13 and vibration operation is transmitted to the other movable arm 10 through the pressure crushing cylinder 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher used for crushing structural materials of buildings to be demolished, concrete blocks, etc.

0002

[Prior Art] Conventionally, when demolishing buildings, etc., the objects to be crushed, such as walls and floors, were roughly dismantled using a large crusher, and then divided into smaller pieces using a different type of crusher to form reinforcing bars and concrete. It was separated into chunks, etc., and then finely crushed using a dicing machine.

0003

[Problems to be Solved by the Invention] The above-mentioned demolition work requires multiple types of crushers with different functions;
There was a problem that work efficiency decreased. It is an object of the present invention to solve the above-mentioned problems, to enable a crushing operation in which a material to be crushed is dismantled, divided into small pieces, and crushed into small pieces using a single crusher, and to improve work efficiency.

0004

[Means for Solving the Problems] The crusher of the present invention finely crushes or pulverizes a material to be crushed which is sandwiched between a movable arm supported by a frame and a crushing arm provided opposite to the movable arm. The movable arm is configured to include a vibration mechanism that vibrates the movable arm.

[0005]

[Operation] A movable arm supported by a frame is vibrated by a vibration mechanism, and the object to be crushed is crushed between the movable arm and a crushing arm installed opposite to the movable arm. Finely crush or crush by

[0006]

[Effects of the Invention] Since the present invention is configured as described above, it is possible to coarsely crush objects to be crushed, such as walls and floors of buildings, and to finely crush or crush them into fine fragments or powder. ,1
Since the crushed material can be roughly crushed and finely crushed by the crusher on the stand, the crushing efficiency can be improved.

[0007]

Embodiment Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In a crusher A that is attached to a power shovel S and controlled to move to a crushing work position in order to crush objects to be crushed, a connecting bracket 1 is connected to the tip of an arm S1 of the power shovel S and the tip of a piston rod of a hydraulic cylinder S2. The upper end of the frame 3 is connected to the lower end of the connecting bracket 1 via a rotational connecting mechanism 2.

The frame 3 has a pair of upper protruding edges 4 on both sides of the lower end.
The upper frame part 4 has a side-extruded part a, the lower frame part 5 has a pair of lower protruding edges 5a laterally protruded on both sides of the lower end, and an elastic member sandwiched between the upper and lower protruding edges 4a and 5a on both sides. The upper and lower projecting edges 4a and 5a on both sides of the upper and lower frame parts 4 and 5 are respectively fastened with bolts 7 and nuts 8 via the vibration isolating members 6.

At the lower end of the frame 3, a pair of left and right movable arms 10, 10 are arranged side by side and opposite to each other, and each can swing in the inward and outward directions via a support shaft 9 suspended horizontally at the lower end of the frame 3. is supported by A cutter 11 for cutting objects to be crushed, such as reinforcing bars and pipes, is mounted near the center of both movable arms 10 so as to face each other.

At the base end of the main body 12a of the crushing cylinder 12 inserted into the upper frame 4 of the frame 3, there is an output shaft 15 of a vibration motor 15 attached to the side surface of the base end.
An excitation shaft 13 directly connected to a is rotatably supported, and the upper end of one movable arm is connected to the base end of the main body 12a of the crushing cylinder 12 via the excitation shaft 13, The upper end of the other movable arm 10 is connected to the tip of the piston rod 12b of the cylinder 12 via a connecting shaft 47, and when the piston rod 12b moves forward or backward, both movable arms 10 swing open and close in opposite directions.

The vibration generating shaft 13 is formed with an eccentric portion 14 that is eccentric by an eccentric amount e with respect to its rotational axis a, and this eccentric portion 14 is formed in a bearing hole penetrated through the upper end of one of the movable arms 10. 48 so as to be freely rotatable. This bearing hole 48
is formed in a vertically elongated shape so that the horizontal component of the eccentric rotation of the eccentric part 14 is transmitted to the movable arm 10 so that the upper end of the movable arm 10 vibrates in the axial direction of the crushing cylinder 12 due to the eccentric rotation of the eccentric part 14. .

The vibration motor 15 is rotated to rotate the vibration shaft 13.
When rotated, one movable arm 10 vibrates in the swinging direction due to the eccentric rotation of the eccentric portion 14 of the vibration generating shaft 13, and the other movable arm 10 vibrates in the swinging direction.
The vibration motion is transmitted through the crushing cylinder 12, and both movable arms 10 vibrate in the direction of pinching and releasing the object to be crushed, which is sandwiched between the two movable arms 10, and a repeated impact action is applied to the object to be crushed. Added.

The lower ends of both movable arms 10 each have a large number of teeth 16a arranged in the circumferential direction, and rotation about an axis parallel to the swing axis of the movable arms 10 via a support shaft 17 is provided. A rotatably pivoted gear-like rotary attachment 16 is mounted in each case. The dual rotation attachments 16 are driven to rotate in opposite directions by attachment motors 21 attached to both movable arms 10.
By rotating the bi-rotary attachment 16, it is possible to scrape away small pieces from the walls, floors, etc. of a building, peel off the surface layer, or drill through holes in the walls, floors, etc.

Both movable arms 10 are bifurcated via a joint 19 between the vicinity of the teeth 16a of the dual rotation attachment 16 and the suction recovery device 20 mounted on the main body S3 of the power shovel S. A collection duct 18 having a pair of branch pipes 18a, 18a each inserted into the inside and whose tips are disposed near the teeth 16a of the rotary attachment 16 is installed, and is scraped off by the teeth 16a of both the rotary attachments 16. The fine fragments and dust are sucked into both branch parts 18a and collected into the suction and collection device 20 through the collection duct 18.

Next, the operation and effects of the embodiment having the above-described configuration will be explained. During crushing work, with the vibration motor 15 and both attachment motors 21 started, the object to be crushed is sandwiched between both movable arms 10 and the crushing cylinder 1 is moved.
When the two piston rods 12b are moved back and forth, the object to be crushed is pinched and crushed between the two movable arms 10, and
The object to be crushed is repeatedly impacted by the vibrating motion of both movable arms 10, and a scraping action is applied to the object by the rotation of both rotary attachments 16, and the object to be crushed is coarsely crushed into fine pieces or dust. Finely crushed or crushed,
The fine fragments and dust are sucked into both branch portions 18a and collected into the suction and collection device 20 through the collection duct 18.

Therefore, the object to be crushed can be effectively coarsely crushed and finely crushed or pulverized in a short time by the combined crushing force of the crushing cylinder 12 and the repeated impact force of both movable arms 10. This eliminates the need for subdivision work and improves the efficiency of crushing work.

[0017]Furthermore, since the shredded and pulverized fine fragments and dust are recovered through the collection duct 18, there is an effect that there is no need to remove the fine fragments and dust after crushing the object. The collected fragments and dust can then be laid down and reused as crushed stone, road foundations, etc.

Furthermore, since the surface layer of walls and floors of buildings can be peeled off using the double-rotation attachment 16, and through holes can be drilled in walls and floors, it is possible to open windows on objects to be crushed. Furthermore, the location to be crushed can be freely selected.

Next, the second embodiment shown in FIGS. 5 and 6 will be described. In this example, in a rotary connection mechanism 2A that rotatably connects the connection bracket 1A and the frame 3A, the lower end of the connection bracket 1A is A cylindrical base 23a, a flange portion 23b connected below the base 23a and having an outer diameter larger than the outer diameter of the base 23a, and a threaded portion 23c connected above the base 23a. The connecting member 23 having the connecting member 23 is fastened by a nut 24 screwed onto the threaded portion 23c. On the other hand, the casing 25 formed at the upper end of the frame 3A has a circular slide hole 25a penetrating through its upper wall 25c, and a circular slide hole 25a that is connected below the slide hole 25a and has a diameter larger than that of the slide hole 25a. A vibration isolation chamber 25b having an enlarged inner diameter is formed.

The base 23a of the connecting member 23 is tightly fitted into the slide hole 25a of the casing 25, and the flange portion 23b of the connecting member 23 is inserted into the vibration isolation chamber 25b of the casing 25 at the upper and lower sides, respectively. The casing 25 is tightly fitted with a gap formed, and the casing 25 is connected to the connecting member 23 so as to be slidable in the axial direction and rotatable around the axis.

In the gap between the upper wall portion 25c of the casing 25 and the flange portion 23b of the connecting member 23, and the casing 2
Oil 27 and compressed air 2 are provided in the gap between the lower wall portion 25d and the flange portion 23b of the frame 3A to absorb vibrations of the frame 3A.
8 are each enclosed.

An eccentric portion 14A is formed in the center of a pair of left and right vibration shafts 13A, 13A, which are inserted in parallel through the lower end of the frame 3A and support the center portions of both movable arms 10A. The eccentric portions 14A are freely rotatably fitted into elongated bearing holes 48A extending through the vertically central portions of both movable arms 10A. A mutually meshed tuning gear 29 is fitted on one side of the eccentric portion 14A of both vibration generating shafts 13A so as to be able to rotate together with the vibration generating shaft 13A.

One of the vibration shafts 13A is directly connected to the output shaft 15aA of a vibration motor 15A attached to the frame 3A, and when the vibration motor 15A is driven to rotate when the piston rod 12bA of the crushing cylinder 12A moves, one of the vibration shafts 13A is The rotation of the vibration shaft 13A is transmitted to the other vibration shaft 1 via both synchronized gears 29.
3A, both vibration axes 13A rotate in opposite directions,
Due to the eccentric rotation of the eccentric portion 14A, both movable arms 10A vibrate in the direction of pinching and releasing the object to be crushed which is sandwiched between the two movable arms 10A, and the object to be crushed is repeatedly impacted while being crushed.

A pair of rotary attachments 16A, 16A are attached to the lower ends of both movable arms 10A, facing each other via a support shaft 17A, in order to apply a scraping action to the object to be crushed. is rotationally driven by attachment motors 21A attached to the lower ends of both movable arms 10A about an axis substantially parallel to the approximate straight line of the locus of movement of the lower ends of the movable arms 10A.

Next, in the third embodiment shown in FIGS. 7 and 8, the connecting bracket 1B has a support portion 3 having a pair of left and right side walls.
1 and a fixed arm 32 having serrated teeth 32a are attached to the frame 3B, which are connected in a substantially inverted V shape,
A horizontally elongated guide hole 31 a is provided near the tip of the support portion 31 .

A gear-shaped rotation attachment 16B is located at the center of the vibration shaft 13B, which is rotatably supported at the base end of the support portion 31 of the frame 3B and is driven to rotate counterclockwise in the figure by the vibration motor 15B. are fitted so as to be rotatable together, and eccentric portions 14B are formed on both sides of the rotary attachment 16B near both ends of the vibration generating shaft 13B.

The movable arm 10B, which faces the fixed arm 32 and is connected to the support portion 31 of the frame 3B, has a serrated tooth portion 10bB near the tip thereof.
The movable arm 10B is formed such that the distance from the movable arm 10B gradually increases toward the front, and protrusions 33 that are loosely inserted into the guide holes 31a of the frame 3B protrude from both sides of the movable arm 10B. The eccentric portion 14 of the vibration generating shaft 13B is located in the bearing hole 18B penetrating the base end of the support portion 31 of the arm 10B.
B is fitted and inserted so that it can freely rotate.

The vibration motor 15B is rotated to rotate the vibration shaft 1.
When 3B is rotated, the rotary attachment 16B is rotationally driven, and at the same time, the bearing hole 48B of the movable arm 10B is rotated.
The vicinity moves circularly around the rotation axis a of the vibration generating shaft 13B with a rotation radius of eccentricity e due to the eccentric rotation of the eccentric portion 14B, and the vicinity of the center of the movable arm 10B is guided by the guide hole 31a to form a toothed portion. The tooth portion 10 moves forward and backward in the arrangement direction of 10bB.
bB vibrates with a compound motion that combines a rocking motion and a forward/backward motion. When the frame 3B is pushed forward during the crushing operation, the object to be crushed gradually enters the deep part of the gap between the movable arm 10B and the fixed arm 32, and while being coarsely crushed, it is further crushed into fine pieces or crushed by the rotating attachment 16B. .

Next, in the fourth embodiment shown in FIG. 9, the fixed arm 32C has a tooth portion 32 having a front tooth row arranged at a coarse pitch and a rear tooth row arranged at a fine pitch.
aC is formed, and the movable arm 10C has a tooth portion 10bC having a front tooth row arranged at a coarse pitch and a rear tooth row arranged at a fine pitch. The movable arm 10C is formed to gradually expand toward the front, and the vicinity of the proximal end of the movable arm 10C is connected to the tip of a connecting link 36 that is pivotably supported by the frame 3C.

A gear-shaped rotating attachment 16C is attached to the center of the vibration shaft 13C, which is rotatably supported at the tip of the support portion 31C of the fixed arm 32C and is driven to rotate counterclockwise in the figure by the vibration motor. Eccentric portions 14C are rotatably fitted and formed near both ends of the vibration axis 13C.
is rotatably fitted into a bearing hole 48C provided through the tip of the movable arm 10C.

[0031] The vibration motor 15C is rotationally driven to rotate the vibration shaft 1.
When 3C is rotated, the rotary attachment 16C is rotationally driven, and at the same time, the vicinity of the tip of the movable arm 10C moves circularly around the rotational axis a of the vibration generating shaft 13C with a rotation radius of an eccentric amount e, thereby rotating the movable arm 10C. Connecting link 3 is near the base end of
6, the tooth portion 10bC moves forward and backward in the arrangement direction of the rear tooth row, and the tooth portion 10bC vibrates in a compound motion that combines a rocking motion and a forward and backward motion. When the frame 3C is pushed forward during the crushing operation, the teeth 32aC, 1 of both arms 32C, 10C
The object to be crushed sandwiched between 0bC is scraped off by the rotary attachment 16C, and finely crushed or pulverized by both arms 32C and 10C.

Next, in the fifth embodiment shown in FIG. 10, the frame 3D includes a first movable arm 10D that is swingably supported by a support shaft 38 inserted near the center of the frame 3D, and A second movable arm 10E, which is swingably supported by a support shaft 39 inserted in the The tooth portions 10bD and 10bE having rear tooth rows arranged at an arrangement pitch are the two tooth portions 10bD.
, 10bE are formed so that the interval is gradually expanded toward the front.

The first movable arm 10D is connected to a piston rod 40a of a first hydraulic excitation cylinder 40 attached to the upper end of the frame 3D, and the second movable arm 10E is connected to a second hydraulic excitation cylinder 40 attached to the lower end of the frame 3D. Shaking cylinder 4
1 piston rod 41a.

Both hydraulic vibration cylinders 40 and 41 are connected to hydraulic circuits for vibration so that the piston rods 40a and 41a vibrate in the axial direction by supplying high pressure oil in a pulsating manner into the piston driving oil chambers. When connected and driving both hydraulic vibration cylinders 40 and 41, both movable arms 10
D, 10E vibrate in opposite directions, and both movable arms 10D,
The object to be crushed which is sandwiched between 10E is finely crushed or pulverized.

Next, in the sixth embodiment shown in FIG. 11, the frame 3F is connected to the connection bracket 1F via the rotary connection mechanism 2F, and the frame 3F is connected to the connection bracket 1F via the rotation connection mechanism 2F.
A movable arm 10F is interposed between the pair of fixed arms 32F and 32F, and is supported by the frame 3F via a support shaft 44 so as to be able to swing in both directions. 10bF is formed.

A rotary disk 42 is fitted to a vibration generating shaft 13F that is rotatably supported near the center of one fixed arm 32F and is rotationally driven by a vibration motor (not shown), and this rotary disk 42 and the movable arm 10F means that one end is a rotating disk 42.
The other end is connected by a crank arm 43 pinned to the movable arm 10F.

When the vibration shaft 13F is rotated, the movable arm 10F vibrates toward both fixed arms 32F due to the crank movement of the crank arm 43, and both fixed arms 32F
The object to be crushed which is sandwiched between the movable arm 10F and the movable arm 10F is finely crushed or pulverized.

Note that the other effects of the second to sixth embodiments are almost the same as those of the first embodiment, so
The explanation will be omitted.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a crusher according to a first embodiment of the present invention.

FIG. 2 is a side view of a power shovel to which the crusher of the first embodiment is attached.

FIG. 3 is a sectional view taken along the line X1-X1 in FIG. 1;

FIG. 4 is a front view showing a crusher of a second embodiment.

5 is a sectional view taken along the line X2-X2 in FIG. 4. FIG.

6 is a sectional view taken along the line X3-X3 in FIG. 4. FIG.

FIG. 7 is a front view showing a crusher of a third embodiment.

8 is an enlarged sectional view taken along the line X4-X4 in FIG. 7. FIG.

FIG. 9 is a front view showing a crusher of a fourth embodiment.

FIG. 10 is a front view showing a crusher of a fifth embodiment.

FIG. 11 is a front view showing a crusher of a sixth embodiment.

[Explanation of symbols]

3, 3A, 3B, 3C, 3D, 3F frame 10,
10A, 10B, 10C, 10D, 10E, 10F
Movable arms 13, 13A, 13B, 13C Vibration axis 3
2, 32C, 32F fixed arm

Claims (1)

[Claims] Claim 1: A movable arm supported by a frame;
A crusher characterized by comprising a vibration mechanism that vibrates the movable arm in order to finely crush or crush the object to be crushed which is sandwiched between the movable arm and a crushing arm disposed opposite to the movable arm.