Solid material comminution or disintegration – Apparatus – Combined or convertible
Reexamination Certificate
2001-06-22
2004-06-22
Rosenbaum, Mark (Department: 3725)
Solid material comminution or disintegration
Apparatus
Combined or convertible
Reexamination Certificate
active
06752339
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a mobile crushing apparatus provided with a crusher for rocks or the like, a supply conveyor for a material to be crushed and a power source for the crusher and the supply conveyor.
BACKGROUND OF THE INVENTION
In the conventional art, there has been frequently employed a mobile crushing apparatus for crushing rocks or the like and manufacturing a concrete aggregate or the like, and in recent years, in order to manufacture the aggregate near a rock mining field or the like, there has been seen a mobile crushing apparatus freely traveling between the working fields. As a first embodiment of the prior arts, there is a structure disclosed in Japanese Patent No. 2809598.
FIG. 27
is a side elevational view of a mobile crushing apparatus
50
disclosed in the publication mentioned above, and
FIG. 28
is a plan view of the same. In
FIGS. 27 and 28
, a frame
51
is attached on a crawler type traveling apparatus
3
, and a cone type crusher
10
is mounted in a substantially center portion of the frame
51
. A supply conveyor
41
a
for supplying a material to be crushed to the crusher
10
is arranged in a right side of the frame
51
with respect to a vehicle in such a manner as to be substantially parallel to a longitudinal direction. A vibrating screen
40
for separating a product and supplying the material to the crusher
10
is arranged in a front side in the longitudinal direction of the frame
51
. A product conveyor
42
for discharging the separated product to an external portion is provided below the vibrating screen
40
so as to be directed forward and upward, and a discharge conveyor
43
a
for discharging the crushed material is provided below the crusher
10
so as to be directed rearward and upward. Although no specific description is given in the publication mentioned above, a power source
30
a
such as an engine for generating power for the traveling apparatus
3
, the crusher
10
, the vibrating screen
40
, the supply conveyor
41
a
and the like is mounted on a rear portion of the frame
51
.
The cone type crusher
10
is structured such as to crush in accordance with a rotary power output from an input shaft
16
. In
FIG. 28
, the input shaft
16
is provided so as to be directed to an opposite side to the vibrating screen
40
in the longitudinal direction of the frame
51
, that is, rearward, and an electric motor
52
arranged in the vehicle side portion opposite to the supply conveyor
41
a
and a belt pulley (not shown) of the input shaft
16
are connected by a V belt
23
. A hydraulic unit
53
(a hydraulic pump) for driving the conveyor or the like and a power generator
54
driven by the engine are arranged at the rear of the crusher
10
. A hydraulic apparatus
55
for driving the traveling apparatus
3
is mounted on a rear portion of the electric motor
52
, the electric motor
52
and the hydraulic apparatus
55
constitute a drive source, and the hydraulic unit
53
and the power generator
54
constitute a power source
30
a.
FIG. 30
is a plan view of a mobile crushing apparatus
60
in accordance with a second embodiment of the prior art. The crusher
10
is mounted on a substantially center portion of a frame
61
, and the vibrating screen
40
is provided in a front portion in a longitudinal direction of the frame
61
. A supply conveyor
41
b
is arranged in the frame
61
disposed in a left side of the crusher
10
and the vibrating screen
40
so as to be along the longitudinal direction. The input shaft
16
of the crusher
10
is arranged in a perpendicular direction to the longitudinal direction and toward the side of the supply conveyor
41
b
. The electric motor
52
for driving the crusher is arranged at the rear of the crusher
10
, and both of the elements are connected by a belt pulley (not shown) of the input shaft
16
and a V belt
23
.
However, the prior arts mentioned above have the following problems.
(1) In the first embodiment, since the input shaft
16
of the crusher
10
is arranged so as to be directed in the longitudinal direction as mentioned above, it is necessary to provide a gap T (a working space) longer than the input shaft
16
between the crusher
10
and the hydraulic unit
53
and the power generator
54
in order to easily perform a drawing operation at a time of dissembling and assembling the input shaft
16
, as shown in FIG.
29
. Accordingly, since the length in the longitudinal direction is increased and a whole size of the mobile crushing apparatus is increased, a weight thereof is increased and a cost therefor is increased.
(2) In the first embodiment, since the electric motor
52
, the hydraulic unit
53
, the power generator
54
and the hydraulic apparatus
55
are respectively arranged on the frame
51
in an independent manner, as shown in
FIG. 28
, a lot of time is required for an assembling operation and a wide space for mounting is required, so that a size of the apparatus is increased and a cost therefor is increased.
(3) In the second embodiment, since the input shaft
16
of the crusher
10
is arranged so as to be directed to the side of the supply conveyor
41
, as shown in
FIG. 30
, earth and sand dropped down from the supply conveyor
41
fall on the drive portion such as the V belt
23
, the electric motor
52
and the like, thereby causing an early abrasion of the V belt
23
and a trouble of the drive portion. Further, since the input shaft
16
is positioned below the supply conveyor
41
b
, it is hard to use a crane for assisting the work at a time of dissembling and assembling the input shaft
16
, so that it is hard to perform the dissembling and assembling work.
Further, as a third embodiment of the prior art, there is a structure disclosed in Japanese Unexamined Patent Publication No. 5-138059.
FIG. 31
is a side elevational view showing a working attitude of a mobile crushing apparatus
90
disclosed in the publication mentioned above. In
FIG. 31
, the crusher
10
for crushing the rocks or the like is mounted on a substantially center portion in a longitudinal direction of a frame
95
provided with the traveling apparatus
3
. The vibrating screen
40
for classifying a grain size of the product is mounted in a front portion in the longitudinal direction of the frame
95
via a vertically moving apparatus
91
in such a manner as to freely move vertically. Further, a supply conveyor
41
c
for transferring the material to be crushed to the vibrating screen
40
is arranged in a left side portion of the frame
95
so as to be inclined upward in the side of the vibrating screen
40
. The supply conveyor
41
c
is attached so as to be freely swung around the a supporting point
92
in the longitudinal direction by a swinging link apparatus
93
. Further, a product conveyor
42
for discharging the product forward and upward is provided below the vibrating screen
40
. Outriggers
94
and
94
are provided in right and left of a front end portion of the frame
95
, and are structured such as to be grounded at a time of crushing work.
FIG. 32
is a side elevational view showing a traveling attitude of the mobile crushing apparatus
90
. At a time of traveling, as shown in
FIG. 32
, the ground of the right and left outriggers
94
and
94
is canceled, and the vibrating screen
40
and the product conveyor
42
are descended by the vertically moving apparatus
91
. Further, the supply conveyor
41
c
is vertically swung around the supporting point
92
by the swinging link apparatus
93
so as to be in a substantially horizontal attitude, whereby a height of a whole of the apparatus is reduced so as to make the apparatus easily pass through a tunnel or the like.
Further, in the mobile crushing apparatus
50
in accordance with the first embodiment, as shown in
FIG. 27
, the crusher
10
is mounted on the substantially center portion in the longitudinal direction of the frame
51
provided with the traveling apparatus
3
, and the vibrating screen
40
is mounted in the front portion in the longitudinal direction
Moriya Yukio
Nakayama Toor
Nishihara Kaoru
Umeda Hiroyuki
Armstrong, Kratz, Quintos Hanson & Brooks, LLP.
Komatsu Ltd.
Rosenbaum Mark
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