Solid material comminution or disintegration – Apparatus – With automatic control
Patent
1996-06-13
1998-03-24
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
With automatic control
241 36, 24110174, B02C 2500
Patent
active
057303738
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
The present invention relates to an apparatus for the drive control of a crusher system which comprises a feeder, a crusher, a belt conveyer and so forth in a traveling type crushing machine that is designed to crush wooden bodies, concrete blocks and so forth which are produced, e.g., when a building is broken.
BACKGROUND ART
A self traveling type crushing machine has been known, as disclosed, e.g., in Japanese Unexamined Utility Model Publication No. Sho 64-32744, which has a vehicle body that is equipped with a traveling body and that has mounted thereon a hopper, a crusher and a conveyer and in which those objects which are thrown into the hopper are crushed by the crusher, the crushed pieces being conveyed on the conveyer and discharged out of the vehicle body.
Such a self traveling crushing machine may be provided with a feeder for feeding objects to be crushed thrown into the hopper automatically into the crusher. In such system, the feeder, the crusher and the belt conveyer are driven by drive sources which are operated independently of each other, each of these drive sources being then independently controlledly driven by a feeder switch, a crusher switch and a belt conveyer switch which are separate from each other.
Such a drive control apparatus is required to operate each of the switches where it is desired to stop the feeder, the crusher and the belt conveyer. If the belt conveyer removing the crushed objects is abnormally stopped, the crusher and the feeder will not be stopped but continue to be driven. Hence the objects to be crushed remain to be crushed. This have caused the crushed pieces to accumulate on the conveyer and may have caused the conveyer to be broken. When this happens, a time consuming repairing work has been required. Thus, the prior art has been found problematical in that a crushing operation tends to be extremely lowered in its efficiency.
Also, a crusher that is employed in the above mentioned self traveling type crushing machine is typically provided in a housing with a fixed jaw and a swinging jaw where the swinging jaw is swingingly reciprocated in the direction of the fixed jaw, thereby crushing objects to be crushed. Such a crusher is adequate in order to crush such common things as wooden bodies, concrete blocks and so forth as produced when a building is broken, but has been found to be unsatisfactory in dealing with large and high-strength materials such as fragments of a reinforcing steel and large wooden wastes. Such objects if charged into the hopper will get locked in between the fixed and swinging jaws to make the crusher inoperative.
If in this way an object to be crushed is firmly interlocked between the fixed and swinging jaws and as a result the crusher is stopped, the crusher will then be stopped in a state in which the swinging jaw is displaced proximate to the fixed jaw. Thus, an extremely large force is required in removing such an interlocked object, such removing operations become extremely laborious and a time consuming operation is required for removal of such an interlocked object. Thus, here again, a crushing operation tends to be extremely lowered in its efficiency.
Especially in the case of a traveling type crushing machine in which at the outlet of the crusher there are disposed traveling bodies, a belt conveyer and so forth, there remains a minimum space for removal below the crusher and it entails quite a troublesome job in the removal of an interlocked object. For this reason, a time consuming work is needed for removing an interlocked object. Hence, the prior art crushing operation has, here again, been found to be problematical since it tends to be extremely inefficient.
THE INVENTION
The present invention has as an object to obviate these inconveniences in the prior art and to provide a crusher system drive control apparatus for a traveling type crushing machine, which apparatus is capable of eliminating a possible damage of a belt conveyer, facilitates the removal of an object if it happens to be interlocked in the c
REFERENCES:
patent: 4721257 (1988-01-01), Williams et al.
patent: 4793561 (1988-12-01), Burda
patent: 4988045 (1991-01-01), Griesedieck et al.
patent: 5074435 (1991-12-01), Suverkrop et al.
patent: 5566893 (1996-10-01), Getz
Kurohara Motoki
Nakayama Toru
Nishida Yasutaka
Tamura Yukio
Yamaguchi Masaho
Komatsu Ltd.
Rosenbaum Mark
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