JPH09316912A - Crusher fitted to slewing arm of civil engineering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and rapidly demolish a structure, by fitting a bucket-form body at the front end of a slewing arm of a construction machine and providing crushing devices with teeth doing reciprocal and rotary movement in the body and providing fixed crushing teeth in the inside face of the body and forming an discharge opening for crushed concrete waste materials in the bottom of the bucket-form body. SOLUTION: Crushing actuators 5 are pivotted on the shaft 4 in a bucket 3 at the front end of a slewing arm of a construction machine. Crushing teeth 8, 9 having different sizes are protruded at the arcuate peripheral face 7 of the crushing actuators 5. The shaft 4 is connected to the piston rod of a hydraulic cylinder 10 arranged at the outside of the bucket 3. The hydraulic cylinder 10 is connected to a hydraulic hose and operated in a driver's seat. Fixed crushing teeth 15, 16 corresponding to the crushing teeth are provided in the bucket 3. And a discharge opening 17 for the crushed concrete pieces is provided at the bottom face. The crushing actuator 5 is repeatedly driven to do the rotary movement in the right and left directions by the hydraulic cylinder 10. In this way, concrete lumps are crushed with a strong pressure between two actuators 5 the crushing teeth 8, 9 and respective actuators and the fixed shushing teeth 15, 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering machine, and more particularly to a crushing apparatus which is attached to the tip of a revolving arm equipped in the civil engineering machine and finely crushes concrete waste materials scattered at a building demolition site.

[0002]

SUMMARY OF THE INVENTION An object of the present invention is to equip a swivel arm of a small turning civil engineering machine with a function of crushing concrete waste materials and other non-ferrous materials accumulated at a building demolition site and finely processing them. It is to obtain a device that can perform dismantling work simply and quickly.

[0003]

The means of the present invention are as follows. A bucket-shaped main body is attached to the tip of the swing arm of the civil engineering machine body, a toothed crushing actuating body that reciprocally rotates by hydraulic power means is pivotally mounted in the main body, and is fixed to the inner surface of the main body facing the crushing actuating body. A crushing device that is installed on the swing arm of a civil engineering machine that has crushing teeth and has an outlet for crushed concrete waste at the bottom of the main body.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION There are three illustrated embodiments.

First, in the first example shown in FIGS. 1 and 2, the crushing actuating body 5 is pivotally attached to the bucket 3 at the tip of the revolving arm 2 of the civil engineering machine 1 by a shaft 4, and the crushing actuating body 5 has an arcuate circumference. Crushing teeth 8 and 9 of different sizes are respectively provided on the surface 7, and the shaft 4 is connected to the piston rod 11 of the hydraulic cylinder 10 outside the bucket 3 by a rod 12.
Although not shown in the drawing so that the hydraulic cylinder 10 can be operated at the driver's seat, the hydraulic cylinder 10 is connected via a hydraulic hose. The bucket 3 has an outlet 17 for crushed concrete on the bottom surface thereof, and fixed crushing teeth 15, 16 corresponding to the crushing teeth 8, 9 are provided inside. Thus, the crushing actuating bodies 5, 6 are alternately rotated left and right by the hydraulic cylinder 10, and the crushing teeth 8, 9 between the two actuating bodies 5, 6 and the concrete with the actuating bodies and the fixed crushing teeth 15, 16 are provided. The lump is crushed under high pressure, crushed and immediately discharged from the outlet 17. Next, the example of FIG. 3 is equipped with a pair of crushing actuators 5 and 6,
On the inner side of the bucket 3, fixed crushing teeth 15, 1
6 is provided, and the other structure is the same as that of the first example. Further, in FIG. 4, one crushing actuating member 5 is shaped like a sword and is sharply crushed by the sharp-edged teeth 22.

[0006]

EFFECTS OF THE INVENTION According to the present invention, by supplying a concrete block or other waste material K into the main body at the tip of the turning arm, it becomes possible to efficiently crush and discharge by the reciprocating motion of the crushing operation body, It is extremely advantageous because it can quickly and surely clean up the site of dismantling using a civil engineering machine with a small turning radius.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment.

FIG. 2 is a vertical sectional side view of a main part of the first embodiment.

FIG. 3 is a vertical side view of the second embodiment.

FIG. 4 is a vertical sectional side view of a third embodiment.

[Explanation of symbols]

 1 Civil engineering machinery 2 Swivel arm 3 Bucket 5,6 Crushing actuator 8,9 Crushing tooth 10 Hydraulic cylinder

Claims (4)

[Claims] 1. A bucket-shaped main body is attached to the tip of a swing arm of a civil engineering machine main body, a toothed crushing actuating body for reciprocating rotational movement by hydraulic power means is pivotally mounted in the main body, and a crushing actuating body is provided on the inner surface of the main body. A crushing device that is attached to the swivel arm of a civil engineering machine that has a fixed crushing tooth facing it and a discharge port for crushed concrete waste etc. is formed in the bottom of the main body. 2. The crushing device to be attached to a turning arm of a civil engineering machine according to claim 1, wherein a bucket having a scooping function is mainly used at the tip of the turning arm. 3. A crushing device to be attached to a swing arm of a civil engineering machine according to claim 1, wherein the crushing teeth projecting from the crushing actuating member are of different sizes. 4. A crushing device to be attached to a revolving arm of a civil engineering machine according to claim 1, wherein two crushing actuating bodies are arranged in parallel in the main body so as to be reciprocally rotatable, and each of them is connected to a hydraulic power unit.