JPH0118687Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a working vehicle, and more particularly to a working vehicle equipped with a laterally movable blade at the front of the vehicle.

Conventionally, it has been used in limited areas with surrounding obstacles, such as processing fallen ore under a belt conveyor for transporting fine ore in a steel mill, moving grain in a ship's tank, and clearing the ground or removing snow near obstacles. To move and transport earth and sand, a mini wheel loader equipped with a small bucket at the front of the vehicle, a two-way dozer equipped with a blade with raking and pushing functions at the front of the vehicle, or a long arm at the front of the vehicle This is generally carried out using a special vehicle equipped with a working device such as a blade through which the vehicle can be moved away from obstacles. However, in all of the above vehicles, the working equipment cannot be moved laterally relative to the vehicle body, so if the vehicle body is moved to the side of the obstacle, it is impossible to move or transport the dirt, etc. below or in front of the obstacle. It becomes possible.
For example, in order to dispose of fallen ore under a belt conveyor for transporting fine ore in a steelworks, it is desirable to move the fallen ore under the belt conveyor while moving the vehicle body along the side of the belt conveyor. This work is impossible with conventional vehicles, and the work efficiency is poor because the vehicle must be repeatedly moved back and forth in a direction intersecting the belt conveyor to scrape or push out dirt, etc. Furthermore, in order to move and transport grain in a tank, it is desirable to scrape up the grain in front of the reinforcing ribs while avoiding the reinforcing ribs that protrude laterally from the inner wall of the tank. This is inconvenient because the vehicle itself must be moved to the front of the reinforcing rib or the process must be done manually.

In addition, since none of the above conventional vehicles can transfer the working equipment laterally relative to the vehicle body, in order to move and transport earth and sand over a wide lateral range while repeatedly moving the vehicle forward and backward, it is necessary to The work is complicated and inefficient because the vehicle's running position must be changed.

The present invention has been made to eliminate the above-mentioned conventional drawbacks, and for this reason, the work vehicle according to the present invention includes a mounting bracket removably fixed to the front part of the vehicle body between the front wheels of a wheel type vehicle; a lift mechanism whose base is pivotally connected to a mounting bracket; a long support arm whose base is pivotally connected to the mounting bracket and which protrudes almost straight in front of the vehicle that can be raised and lowered by the lift mechanism; and a tip end of the support arm. a blade support body which is pivotally connected to the support arm and can be tilted back and forth by a tilt mechanism provided on the support arm; A working device includes a blade and an actuating device that slides the blade in both left and right directions, and the sliding mechanism is provided with upper and lower two parts provided on the blade support.
It consists of a horizontal rail of the book and two upper and lower horizontal rails that are provided on the upper part of the back surface of the blade and slidably engage with the horizontal rail of the blade support, and the actuating device is arranged on the upper part of the back surface of the blade and the upper and lower horizontal rails, respectively. It consists of a single piston cylinder disposed between the upper and lower horizontal rails provided on the blade support, connected between the blade and the blade support, and housed in a housing, the lift cylinder and the tilt A cylinder is disposed on the support arm substantially parallel to the arm, and the support arm, the lift cylinder, and the tilt cylinder are configured to be substantially horizontal when the work equipment is lowered, and the blade of the work equipment, the support arm, the lift mechanism, and The tilt mechanism is characterized in that its height is lower than the front wheels of the vehicle when the lift mechanism is lowered, and that the entire working device is removable from the vehicle body via the mounting bracket.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Figures 1 to 3 show the application of the present invention to a two-way dozer as an ore processing vehicle.
In the figure, 2 is the vehicle body, 4 is the front wheel, 6 is a mounting bracket fixed with bolt 8 to the front part of the vehicle body 2,
10 is a long push arm or support arm whose one end is fixed to the mounting bracket 6 with a pin 12;
14 is a bracket fixed in the middle of the push arm 10; 16 is a piston cylinder which is fixed with pins 18 and 20 between the brackets 6 and 14 and serves as a lift mechanism for raising and lowering the push arm 10; and 22 is a piston cylinder installed horizontally between the push arms 10 and 10. 24 is a bracket fixed to the intermediate rod 22, and 26 is a pin 28 at the tip of the push arm 10.
a stopped blade support, 30 a blade supported by the blade support 26; 32 a pin 3 between the blade support 26 and the bracket 24;
4 and 36 respectively show piston cylinders forming a tilting mechanism for tilting the stopped blade 30. The piston cylinder 16 that constitutes the lift mechanism and the piston cylinder 32 that constitutes the tilt mechanism are arranged on the push arm or support arm 10 substantially parallel to the arm, and the arm 10, the piston cylinder 16, and the piston cylinder 32 are connected to the blade 30. It is constructed so that it becomes almost horizontal when descending.

As best shown in FIG. 3, the blade support 26 has a mounting bracket 38 fixed to the tip of the push arm 10 with a pin 28 on the rear side thereof;
Pin 34 to the piston tip of the piston cylinder 32
It is equipped with a mounting bracket 40 to be fixed, and a housing 44 that houses a piston cylinder 42 for lateral movement of the blade 30, which will be described later, and two upper and lower rails 4 with an L-shaped cross section extending almost horizontally on the front side.
6 and 48 are fixed with bolts 50.

On the other hand, on the upper half of the back surface of the blade 30, there are two upper and lower rails 52, 5 that extend almost horizontally and have an L-shaped cross section.
4 are fixed by suitable means such as bolts, and these rails 52, 54 are slidably engaged with the rails 46, 48 of the blade support 26 so as not to come off (FIG. 1). Housing 44
The tip of the piston 43 of the piston cylinder 42 housed inside is fixed to a pin 58 to a fixture 56 fixed to the back surface of the blade 30, and the rear end 43' of the piston cylinder 42 is connected to the blade support 2.
A pin 60 is fixed to the housing 44 of No. 6.
Therefore, the blade 30 is moved left and right with respect to the blade support 26 by expanding and contracting the piston of the piston cylinder 42. In other words, vehicle body 2
is moved laterally relative to the In addition, it is desirable to provide a cover 62 surrounding the piston rod on the back side of the blade to prevent dirt and the like from adhering to the piston rod 43 of the piston cylinder 42 and causing malfunction.

As shown in the figure, the push arm 10, the blade 30, the piston cylinder 16 as a lift mechanism, and the piston cylinder 32 as a tilt mechanism are connected to the front wheel 4 when the push arm 10 is lowered.
It is arranged and configured to be shorter in height, so that the entire blade support mechanism in front of the mounting bracket 6 can enter under a belt conveyor (not shown) which is lower in height than the front wheel 4.

Next, the operation of the two-way dozer having the above configuration will be explained. The vertical movement or vertical movement of the blade 30 is achieved by pivoting the entire push arm 10 around the pin 12 by extending and contracting the piston of the piston cylinder 16. In addition, the tilting of the blade 30 in the front-rear direction is caused by the piston cylinder 3 as shown by two dots and a dashed line in FIG.
By expanding and contracting the piston shaft of 2, the blade 3
0 and by swinging the blade support 26 around the pin 28. At this time, since the upper half of the blade 30 is supported by the push arm 10, a large swing of the lower end of the blade can be obtained. Furthermore, the lateral movement of the blade 30 is caused by the piston cylinder 4 as described above.
This is done by expanding and contracting the piston shaft of 2 from the neutral position shown by the solid line in FIG. 2, thereby moving it left and right relative to the vehicle body 2 as shown by the dashed line in the same figure. Therefore, in order to use the vehicle to dispose of fallen ore under the belt conveyor, the blade 30 is used to scrape up or push out the fallen ore while moving the vehicle forward and backward in a direction that intersects the belt conveyor, as in the past. However, by moving the blade 30 laterally without changing the course of the vehicle, processing can be performed over a wider range than the width of the blade, and work efficiency can be improved.
In addition, since the vehicle body runs along the side of the belt conveyor and only the blade 30 enters laterally under the belt conveyor to move and transport fallen ore, work efficiency can be further improved. can.

Although the above-mentioned embodiment is particularly shown as a two-way dozer for treating fallen ore, the present invention is not limited to this, and is a work vehicle in which the blade can move vertically, tilt forward and backward, and move laterally in front of the vehicle. It can be used to improve work efficiency in grain movement within a ship's tank, leveling or snow removal in a limited area with surrounding obstacles, as well as general leveling and snow removal work.

As described above, according to the present invention, the blade is provided on the blade support body so as to be slidable on both the left and right sides via the slide mechanism, and the blade is made to be slidable on both the left and right sides by the actuating device. It is possible to move and transport dirt, etc. below or in front of an obstacle without moving the vehicle body to the side of the obstacle, and it can also move and transport dirt etc. that is wider than the width of the blade itself while the vehicle is moving straight. can be covered.

Additionally, in the present invention, the entire working device is attached to the front of the vehicle body via a bracket, the support arm is a long arm that projects almost straight ahead of the vehicle, and the lift cylinder and tilt cylinder are the blade and the support arm are arranged substantially parallel to the support arm, the support arm, the lift cylinder and the tilt cylinder are configured to be substantially horizontal when the work equipment is lowered; The lift mechanism and the tilt mechanism are configured so that the height is lower than the front wheels of the vehicle when the lift mechanism is lowered. The blade can easily approach deep areas of obstacles that the vehicle itself cannot enter. On the contrary, this means that the vehicle can be moved even when there are obstacles, and therefore, the work vehicle of the present invention can cover an extremely wide range of work areas even near obstacles, improving work efficiency. I can do it. In particular, by combining the movement of the vehicle near this obstacle with the above-mentioned sliding of the blade in both left and right directions, the work area can be further expanded.

Furthermore, in this invention, the entire working device in front of the mounting bracket is integrated and can be removably mounted on the vehicle body, which not only makes it easy to attach and detach the working device to the vehicle body, but also allows the hydraulic pressure to be applied to each piston cylinder. By connecting the piping to the vehicle body side hydraulic system using a quick joint, etc., it can be easily replaced and installed on a standard specification loader. Furthermore, by using a wheel-type work vehicle, it not only has better maneuverability than a truck-type vehicle, but also generates less noise when working inside a steelworks or ship tank.
Good workability. Furthermore, since the blade is made of a thin plate, it is particularly convenient for light work such as processing fallen ore and moving grain. Furthermore, since an actuating device consisting of a rail and a piston cylinder as a slide mechanism is provided at the upper part of the back of the blade, the slide mechanism and piston cylinder are There is no risk of damage and is highly durable. In particular, since the piston cylinder is housed in a housing disposed between upper and lower horizontal rails provided on the upper back surface of the blade and on the blade support, there is no risk of contamination. Further, since the actuating device for sliding the blade is composed of a single piston cylinder, the structure can be simplified and the weight can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a partial side view showing an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a perspective view of essential parts of the embodiment. 2... Vehicle body, 4... Front wheel, 10... Push arm, 16... Piston cylinder (lift mechanism), 26... Blade support, 30... Blade, 32... Piston cylinder (tilt mechanism),
42... Piston cylinder (for blade movement),
46, 48, 52, 54...Rail.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A mounting bracket removably fixed to the front of the vehicle body between the front wheels of a wheel-type vehicle, a lift mechanism whose base is pivoted to the mounting bracket, and the mounting bracket. an elongated support arm whose base is pivotally connected to the vehicle and which protrudes almost straight in front of the vehicle and can be raised and lowered by a lift mechanism;
A blade support is pivotally connected to the tip of the support arm and can be tilted back and forth by a tilt mechanism provided on the support arm, and a blade support is provided on the blade support so as to be slidable in both left and right directions via a slide mechanism. The working device includes a thin plate-shaped blade and an actuating device that slides the blade in both left and right directions, and the sliding mechanism includes two upper and lower horizontal rails provided on the blade support and a back surface of the blade. Upper and lower parts 2 provided at the upper part and slidably engaged with the lateral rails of the blade support.
the actuating device is disposed between the upper and lower horizontal rails provided on the upper back surface of the blade and the blade support, and is connected between the blade and the blade support, and is connected within the housing. The lift cylinder and tilt cylinder are arranged on a support arm substantially parallel to the arm, and the support arm, lift cylinder, and tilt cylinder are arranged substantially horizontally when the work equipment is lowered. The blade, the support arm, the lift mechanism, and the tilt mechanism of the working device are configured to be lower in height than the front wheels of the vehicle when the lift mechanism is lowered, and the entire working device is mounted through the mounting bracket. A work vehicle characterized by being able to be attached to and detached from the vehicle body. (2) The vehicle according to paragraph 1, wherein the vehicle is a two-way dozer.