JPS6311496B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-way dozer with a new blade mechanism for improving the efficiency and safety of cargo handling operations, in which a blade and its support mechanism are attached to the front of the vehicle. be.

Conventionally, processing of lump and granular ore materials in mines or movement of lump and granular raw materials or products at various locations within a factory,
Mini wheel loaders, two-way dozers, etc. have been used to carry out transportation work within a limited area where there are obstacles such as other fixed equipment nearby, such as when moving lumps and granular cargo within a ship's tank. However, when these vehicles are used, for example, in indoor raw material storage areas such as factories with limited space, there are cases where bulk and granular raw materials are pushed into the opening of a hopper provided on the work surface, or when there is a narrow space. When collecting grain, etc. in a ship's tank from the range of action of the clamshell bucket of a loading crane, i.e. the center of the hatch, the object to be processed must be pushed from the hopper or around the hatch, but conventional work vehicles cannot Then, the blades are fixed at right angles to the direction of travel of the vehicle and only have a push-pull function.
Since it is necessary to frequently change direction, go forward or backward, etc., operation is cumbersome and complicated, and operator fatigue increases due to lever operations to switch between forward and reverse and shocks when switching between forward and backward. . In addition, the repeated forward and backward movement means that half of the movement is in the return direction, which is very wasteful.Therefore, for the same amount of cargo handling, the fuel consumption is also very high.In addition, the processing time required is also long, and the damage to the vehicle is severe. , it had drawbacks such as being extremely inefficient and uneconomical.

The present invention was completed by researching the structural aspect of the vehicle in order to eliminate the various drawbacks and hindrances to the cargo handling work according to the prior art, and it is possible to angle the blade smoothly and continuously on a horizontal surface. This object is achieved by creating a two-way dozer that includes a mechanism that makes it possible to do this.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings.

Figures 1 to 3 show the application of the present invention to a two-way dozer for cargo handling in ship tanks, with Figure 1 being a plan view, Figure 2 being a side view, and Figure 3 being an explanatory side view. FIG. 3A is a detailed explanatory view of the brace portion, and FIG. FIG. 4 is a diagram showing a conventional working configuration, and FIG. 5 is a diagram showing a working configuration when using a horizontal angle angle two-way dozer according to the present invention.

Therefore, the structure of the working vehicle of the present invention will be explained. First, in FIGS. 1 and 2, reference numeral 1 denotes a vehicle body, and a working mechanism 2 is pivotally attached to the front portion of the vehicle body. The base end of the working mechanism 2 is constituted by a C-shaped frame 3 consisting of an outside arm, and the C-shaped frame 3 is pivotally connected to the vehicle body 1 via a trunnion 4, and the front portion of the vehicle body 1 is approximately surround each other horizontally. Further, the tip portion 6 including the blade 5 of the working mechanism 2 is made up of the blade 5, a blade support frame 7, and two left and right cylinders 8 for changing the front and rear angle of the blade. The blade support frame 7 is a frame with an L-shaped side surface including a horizontal member 7a and a pair of left and right vertical members 7b extending forward from both ends of the horizontal member, and the blade 5 is attached to the vertically intermediate portion of the horizontal member 7a. The upper end of the blade is pivoted to the front end of the longitudinal member 7b, and the upper end of the blade is connected to the upper end of the L-shaped frame via the longitudinal angle changing cylinder 8. Supported. The working mechanism 2 is mounted on the C-shaped frame 3 approximately in the middle thereof.
It is pivoted by the tip of a rod fitted into a cylinder 9 for raising and lowering books, and the tip 6 can be raised and lowered.

The tip end 6 including the blade is pivoted to the C-shaped frame via left and right braces 10, 10' and a rotatable joint 11 provided at the rear of the central part of the transverse member of the L-shaped frame 7. The structure should be such that it can be worn and supported. Further, the distal ends of the left and right braces 10, 10' support both left and right ends of the L-shaped frame 7 via a rotatable joint 12, and the proximal ends of the braces support the left and right ends of the L-shaped frame 7.
It is pivoted to a bracket A that slides on a slide rail 14 provided along the upper longitudinal direction of the left and right members of the C frame 3 via a rotatable joint 13 shown in FIGS.

Furthermore, the trunnions 16 of the left and right horizontal angle angle cylinders 15 are pivotally attached to the left and right brackets A, respectively, and the base ends of the rods fitted in the cylinders are fixed onto the left and right members of the C-shaped frame 3, respectively. It is pivoted to bracket B. The details of the brace part and the front and rear related parts are as shown in FIG.
It slides on slide rails 14 provided along the longitudinal direction on the left and right members of the shape frame 3, and the cylinder rod 17 is pivotally supported by the fixed bracket B, and the cylinder is coaxially moved around the rod. Sliding. In addition, Fig. 3b is - of Fig. 3a.
Although the sliding portion in this example is an oil surface sliding portion, a ball bearing may be used in this portion. Furthermore, the rotatable joint 13 at the proximal end of the brace 10 is a partially spherical joint in this example, which allows the brace 10 to tilt both forward and backward and horizontally.

The present invention, constructed as described above, operates as follows and produces great effects. First, by expanding and contracting the lifting cylinder 9, the working mechanism 2 moves circularly around the trunnion 4, and the blade 5 moves up and down, and by expanding and contracting the cylinder 8, which changes the blade longitudinal angle, the working mechanism 2 moves circularly around the trunnion 4.
can be tilted back and forth three-dimensionally. At this time, blade 5
The vertically intermediate portion of the blade is supported by the front end of the vertical member 7b of the L-shaped frame 7, and its upper end is connected to the upper end of the L-shaped frame via the front-back angle changing cylinder 8, so that the movement of the blade is L. A large deflection angle can be obtained without being hindered by the shape frame 7 or the cylinder 8, and since the blade is supported at the middle and upper end, it can be stably supported, and the blade 5 can be stably supported from the cylinder 8 to the blade 5. Force can be effectively transmitted to. In addition to these angling actions, in the work vehicle of the present invention, if the left and right horizontal angle angle cylinders are slid on the slide rail 14 in the front and back opposite directions by hydraulic means, the angle angle can be adjusted relative to the traveling direction of the vehicle. The angle formed by the blade 5 can be varied in the horizontal plane. Moreover, since hydraulic means and the slide rail 14 are used, the angle can be changed freely and extremely smoothly. The angle at which it can be angled is about 25 degrees, but it can be stopped at any angle within that angle if necessary.

As a result, when the work vehicle or two-way dozer according to the present invention is used for cargo handling in which objects to be treated are collected and dropped into a hopper in a limited place such as a factory building or on a ship,
If the dozer is driven parallel to the edge around the hopper to push or pull the object with the blade angled in a horizontal plane as described above, the force parallel to the edge and perpendicular to the hopper opening will be The resultant force will be applied to the object. Due to this effect, objects can be placed into the hopper one after another without changing the direction of movement of the dozer. That is, in the past, as shown in FIG. 4, for example, in the case of cargo handling on a ship, the purpose could not be achieved unless the dozer was driven at right angles toward the center of the hatch 32 in the hold 31 and moved back and forth repeatedly. Therefore, it was very difficult to carry out processing using the dozer as shown in the work configuration 34, but when using the horizontal angle two-way dozer of the present invention, the two-way dozer is placed in a pushing state while parallel to the ship wall or the hold partition 33. If the robot travels in the same direction, the object can be easily and almost completely collected in the center of the hatch as shown in work configuration 35 shown in FIG.

Therefore, the effects of the present invention are that the two-way dozer greatly improves the efficiency of onboard cargo handling operations, significantly reduces fuel costs, reduces operator fatigue, prevents danger by reducing backing work, and makes work styles safer depending on the situation. It also brings about many effects, such as being able to make efficient selections. Also, in terms of manufacturing, compared to conventional two-way dozers, special parts can be manufactured more easily and costs can be reduced. Furthermore, in the present invention, the two-way blade blade 5 and the longitudinal angle changing cylinder 8
Brace 1 is the one that is assembled into an L-shaped frame.
Since it can be attached to the 0 tip and the C-shaped frame 3, a two-way dozer that can be angled can be easily obtained by attaching the L-shaped frame in place of the blade of a general earthwork angle dozer. In this case, the L-shaped arm is supported at both ends by the C-shaped frame made up of the outside arm via a brace, so that stable support can be obtained.

The horizontal angle angle two-way dozer of the present invention can be used not only for shipboard work, but also for cargo handling in mines and factories. The illustrated embodiment merely shows one embodiment of the present invention, and the technical scope of the present invention is not limited to this embodiment.

[Brief explanation of the drawing]

Fig. 1 is a plan explanatory view of the present invention applied to a two-way dozer for onboard cargo handling, Fig. 2 is a side view thereof, and Fig. 3 is a detailed explanatory view of the brace portion. Part explanatory diagram, b is a cross-sectional explanatory diagram of part a, and the fourth
The figure shows a conventional working form, and FIG. 5 shows a working form by the dozer of the present invention. In the figure, 1 is the vehicle body, 2 is the working mechanism, 3 is the C-shaped frame, 4 is the trunnion, 5 is the blade, 6 is the tip including the blade, 7 is the L-shaped frame, 8
is a cylinder for changing the blade longitudinal angle, 9 is a cylinder for lifting and lowering, 10, 10' are braces, 11, 12,
13 is a rotary joint, 14 is a slide rail, 1
5 is a horizontal angle angle cylinder, 16 is a trunnion, and 17 is a cylinder rod.

Claims (1)

[Scope of Claims] 1. A working mechanism is provided at the front of the vehicle, and the working mechanism includes a C-shaped frame having a blade at its tip and an outside arm at its base, and both base ends of the C-shaped frame include a blade at its tip and an outside arm at its base. In a two-way dozer, the blade is pivotally connected to both sides of the vehicle body via a trunnion, and has a cylinder for lifting and lowering the working mechanism with the trunnion as the center of rotation, and a cylinder for changing the longitudinal angle of the blade. The frame that supports the blade is constructed of a frame having an L-shaped side surface including a horizontal member and a pair of left and right vertical members extending forward from both ends of the horizontal member, and the vertically intermediate portion of the blade is connected to the vertical member. and connects between the upper end of the blade and the upper end of the L-shaped frame via the front-back angle changing cylinder, and the rear side of the central part of the lateral member of the L-shaped frame. is pivotally supported via a rotary joint provided in the center of the C-shaped frame, and is pivotally supported by the tips of the left and right braces via rotatable joints at the rear of both lateral ends of the L-shaped frame, The base ends of the left and right braces are pivotally connected to brackets A that slide on slide rails provided along the upper longitudinal direction of the left and right members of the C-shaped frame, and the left and right brackets A are provided with left and right horizontal angle angles, respectively. The trunnion part of the ring cylinder is pivotally mounted, and the base end of the rod fitted in the cylinder is pivotally supported on the bracket B fixed on the left and right members of the C-shaped frame, respectively, and the left and right parts are moved by hydraulic means. A two-way dozer, characterized in that the angle formed by the blade relative to the traveling direction of a vehicle can be changed on a horizontal plane by sliding horizontal angle angle cylinders on the slide rail in opposite directions. 2. The two-way dozer according to claim 1, wherein the sliding mechanism of the slide rail is a roller bearing.