Solid material comminution or disintegration – Apparatus – With automatic control
Patent
1996-02-01
1998-02-10
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
With automatic control
24110174, 241224, B02C 2102
Patent
active
057160147
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a self-advancing crushing machine for crushing wrecks or the like at, for example, building sites wherein portions of the wrecks or the like are to be crushed. The present invention also relates to a mounting structure of a crusher motor for driving the crusher of the self-advancing crushing machine for crushing the wrecks or the like.
PRIOR ART
As disclosed in Japanese Utility Model Laid-open Publication No. SHO 64-32744 and Japanese Patent Laid-open Publication No. SHO 63-77553, a self-advancing crushing machine is known in which a crusher, a hopper and a driving device are mounted to a vehicle body provided with a pair of bilateral travelling members, wherein a discharge conveyer is disposed to be tiltable between the paired travelling members at a lower portion of the vehicle body.
The self-advancing crushing machines disclosed in the above prior art publications can self advance through the rotation of crawler belts or wheels and finely crush materials to be crushed such as concrete or the like projected into a hopper, and the crushed pieces are discharged outside the vehicle body by means of the discharge conveyer.
A crusher mounted to such self-advancing crushing machine is called a jaw-crusher and is provided with, as disclosed, for example, in Japanese Patent Laid-open Publication No. SHO 63-77553, a housing to which are provided a stationary receiving plate and a movable crushing plate, whereby the materials to be crushed are crushed between the stationary receiving plate and the movable crushing plate by swinging the movable crushing plate. However, the materials cannot be crushed finely by such crusher, and particularly, tires, wood chips and the like cannot be finely crushed.
Furthermore, the self-advancing crushing machine disclosed in Japanese Utility Model Laid-open Publication No. SHO 64-32744 is equipped with a crusher in which the materials to be crushed are charged above a housing, so that it is necessary to utilize an elongated stationary receiving plate and a movable crushing plate. Hence, the distance between the vehicle body and the upper surface of the housing is made long, and since a hopper is disposed at an upper portion of such housing, the entire vertical height of the crushing machine increases.
For this reason, it is possible that the total height of the vehicle and the crushing machine mounted thereon will exceed a prescribed height for a vehicle when the crushing machine is conveyed while being mounted on a body of the vehicle, and in such case, it is necessary to disassemble the hopper from the crushing machine, thereby creating a troublesome problem.
Still further, the self-advancing crushing machine disclosed in Japanese Utility Model Laid-open Publication No. SHO 64-32744 is of a type in which materials to be crushed are projected in the hopper such that the materials then directly fall down from the hopper and along it by the force of gravity, so that the amount of the materials to be fed into the crusher from the hopper varies per unit time according to the force of gravity acting on the materials or the amount of the materials projected into the hopper, resulting in unstable crushing operation of the crusher. In certain cases, moreover, the materials cannot be stably fed into the crusher because of clogging of the materials in the hopper, and when the hopper clogs with the materials, it is necessary for a worker or operator to enter the hopper to remove the clogging materials and carry out the maintenance thereof. Because of this reason, the height of the hopper is made low so that the worker can easily enter into the hopper, and accordingly, there is a possibility for the worker to erroneously enter the hopper during the working, thus creating a dangerous situation. In order to obviate such problem and ensure the safety of the worker during the working in the hopper, it is required to further locate an equipment or device therefor.
Furthermore, in the self-advancing crushing machine of the type described above, a
REFERENCES:
patent: 4269364 (1981-05-01), Moriconi et al.
patent: 5476227 (1995-12-01), Tamura et al.
patent: 5580004 (1996-12-01), Tamura et al.
Patent Abstracts of Japan, vol. 016, No. 261 (C-0950), Jun. 12, 1992 (Kyokuto Kaihatsu Kogyo Co., Ltd.).
Self Propelling Dual-Axis Shear, Komatsu Ltd., May 1993.
Nakayama Toru
Ozawa Yuji
Tamura Yukio
Komatsu Ltd.
Rosenbaum Mark
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