JP2001039132A - Lifting and supporting device of working vehicle for track - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting and supporting device of a vehicle body which can rapidly and efficiently solve a condition that a steel wheel on a track is not operated. SOLUTION: The working vehicle comprises steel wheels 6, 9 for track for the traveling on a track 14, and a pair of outrigger devices 1 to lift and support a vehicle body by bringing their lower end parts into contact with the ground at the sides of the vehicle body. The outrigger devices 1 comprise an outer post 1a, an inner post extended downwardly from the outer post 1a, and a ground contact plate mounted on a lower end of the inner post. The forward or rear side of the vehicle body is lifted and supported by the outrigger devices 1, and a rail catch is set to the vehicle body on the opposite side to the lifting and supporting side of the vehicle body. The outrigger devices 1 are located within the vehicle width to lift and support the vehicle body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track work vehicle provided with a track iron wheel for traveling on a track, and more particularly, to recover this state when the iron wheel of the track work vehicle does not operate. And a device for lifting and supporting the work vehicle. The track work vehicle is not limited to a work vehicle running on rails having only track running wheels,
Also includes a track-and-ground work vehicle provided with a track traveling wheel and a road traveling wheel.

[0002]

2. Description of the Related Art Conventionally, such a working vehicle has a retractable iron wheel for a track so that it can be moved on a railroad track. For example, see JP-A-9-48222. On the other hand, in the case of a vehicle that does not include a track iron wheel on a work vehicle, a separate track truck is interposed between the track and the wheels, and the wheels of the work vehicle are mounted on the track truck to move the work vehicle. For example, see JP-A-1-254465.

[0003]

However, the former has a structure in which an iron wheel for a track is provided on a work vehicle, and the iron wheel is mounted on a track instead of a wheel. In this structure, the vehicle is lifted using the front and rear outrigger devices so that a bogie is interposed therebetween. Therefore,
The former has no emergency escape measures when the iron wheel stops rotating. In the latter, the outrigger devices provided before and after the vehicle are located in front and behind the vehicle, so there is no problem in terms of space if it is always provided for a large work vehicle. The outrigger device gets in the way when not in use. Furthermore, there is little mounting space.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lifting support device for a vehicle body capable of quickly and efficiently solving this problem even if the iron wheels on the track do not operate. I have.

[0005]

In order to achieve the above object, the invention according to claim 1 comprises a track wheel for traveling on a track, a center of gravity of a side of the vehicle body when the vehicle is empty, and A pair of outrigger devices for lifting and supporting the vehicle body with the lower end thereof in contact with the center of gravity of the vehicle, the outrigger device comprising an outer post vertically fixed to the vehicle body, and an inner post extending downward from the outer post. And a ground plate attached to the lower end of the inner post.

According to a second aspect of the present invention, the outrigger device lifts and supports the front or rear side of the vehicle body, and includes, on one side, a vehicle body mounting portion which is mounted on the vehicle body on the side opposite to the lifting support side of the vehicle body. On the other hand, a rail catcher provided with a rail holding portion for holding the rail was provided.

According to a third aspect of the present invention, the lower end portion is grounded between a track wheel for traveling on a track and a center of gravity of a side of the vehicle body when empty and a center of gravity when loading. An outrigger device comprising a pair of outrigger devices for lifting and supporting the vehicle body, the outrigger device being provided so as to be tiltable in a front-rear direction of the vehicle body from a vertical position on the vehicle body, an inner post extending downward from the outer post, And a ground plate attached to the lower end of the inner post.

According to a fourth aspect of the present invention, the outrigger device is located within a vehicle width.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the lifting support device of the present invention will be described. In this embodiment, a pair of vehicle-body lifting support devices are arranged on both sides of the track work vehicle. The vehicle body lifting support device has jack means.

For the jack means, for example, a pair of outrigger devices is used, and the outer post, the inner post extending downward from the outer post, and the jack means are stably provided on the tip of the inner post on the ground such as a track. The outer post is fixed vertically to the vehicle body frame.

In the case of a working vehicle of a truck (or dump) vehicle, an engine is usually disposed below the driving cabin. When the carrier is empty, the center of gravity of the vehicle body is shifted forward of the vehicle body. Often they are skewed.
Therefore, when the inner post is extended from the outer post, the rear side of the vehicle body floats. Therefore, it is preferable to mount the rail catch mounting portion on the rear side of the vehicle body, hold the rail holding portion of the rail catch on the rail, and pull the rear side of the vehicle body downward to lift and support the front side.

Conversely, when loading, when the inner post is extended from the outer post, the front side of the vehicle body floats.
Therefore, it is preferable to mount the rail catch mounting portion on the front side of the vehicle body, hold the rail holding portion of the rail catch on the rail, and pull the front side of the vehicle body downward to lift and support the rear side.

Further, the outer post may be mounted so as to be tiltable in the front-rear direction of the vehicle body with respect to the vehicle body frame.

In the case where the ground is covered with ballast, if the ground plate of the outrigger device is small, the outrigger device may slide on the ballast and break down. It is desirable to have a size or to lay a hard plate below the ground plate that is larger than the ground plate.

After raising or supporting either the front or the rear of the vehicle body, a separately provided truck is allowed to enter the lower part of the vehicle body from the side where the vehicle is lifted and supported, and the vehicle body is placed on the truck, and To move.

[0016]

Next, an embodiment will be described in detail with reference to FIGS. The track work vehicle A is configured based on a truck (or dump) vehicle running on the road 13, and therefore, tire wheels 4 and 5 are attached to the front, rear, left and right of the vehicle body, respectively. In the figure, 11 is a frame of a vehicle body, 12 is a carrier, and 13 is a cabin.

Iron wheels 6, 9 are attached to the front, rear, left and right sides of the vehicle body by means of iron wheel overhanging mechanisms 7, 10 so as to be freely extended (down) and stored (up). It should be noted that an idle roller 8 is interposed between the rear iron wheel 9 and the rear wheel 5 to transmit the rotational force of the rear wheel 5 to the iron wheel 9 in the same rotation direction.
The rear wheel 9 and the idle roller 8 are integrally attached to the iron wheel overhang mechanism 7.

An outrigger device 1 is vertically fixed to a pair of left and right sides between a center of gravity G1 of a vehicle empty portion on the side of the body frame 11 and a center of gravity G2 when the vehicle is loaded. The outrigger device 1 includes an outer post 1a vertically fixed to the frame 11, and an inner post 1b in the outer post 1a.
And a ground plate 1c attached to the lower end of the inner post 1b
It is composed of To extend the inner post 1b, hydraulic pressure is supplied to the inner post 1b via a dedicated hydraulic pump (not shown) and a handle for generating hydraulic pressure, thereby extending the inner post 1b downward. The outrigger device 1 is fixed to the side of the frame 11 within the vehicle width.

Next, the operation of the embodiment of the present invention will be described. Normally, when the work vehicle A travels on the road 18, the iron wheels 6, 9 are retracted and the tire wheels 4, 5, as shown in FIG.
Drive on. In order to run the work vehicle A on the track 14 in the track construction, as shown in FIG. 2, the iron wheels 6, 9 are attached to the ties and the wheels 4, 5 via the iron wheel overhanging mechanisms 7, 10 on the track 14. And run it.

However, when the iron wheel does not rotate due to a failure of the driving mechanism of the iron wheel, the outrigger device 1 of the present invention is operated. When the iron wheel 9 at the rear of the work vehicle A is locked and does not move, and when the work vehicle A is empty, the center of gravity G1 of the vehicle body
Is out of the mounting position of the outrigger device 1, the outrigger device 1 is operated to extend the inner post 1b and ground the ground plate 1c attached to the tip. Further, by extending the inner post 1b, the rear side of the vehicle body starts to float as shown in FIG. 3, and finally the rear side is lifted and supported.

In this state, the track bogie 15 is placed on the track 14 from the rear, and is set below the rear tire wheel 5 as shown in FIG. 4 and locked when the inner post 1b of the outrigger device 1 is retracted. The iron wheel 9 and the tire wheel 5 are separated from the track, and the bogie 15 supporting the fixed tire wheel 5 runs on the track 14.

If the front iron wheel 6 does not rotate in an unloaded state, the center of gravity G1 of the vehicle body is often biased toward the front side of the vehicle body. 14, and then the outrigger device 1 is operated to extend the inner post 1 b to ground the ground plate 1 c attached to the tip thereof.
When b is extended, the rear side of the vehicle body floats,
The rail catch 20 is attached to the rear side of the vehicle body, and furthermore, the front side is lifted and supported by making the rail catch the rail and pulling the rear side of the vehicle body downward.

Next, when the rear iron wheel 9 does not rotate in the loaded state, since the center of gravity G2 of the vehicle body is often biased toward the rear side of the vehicle body, the outrigger device 1 is operated. Then, the inner post 1b is extended so that the ground plate 1c attached to the tip is grounded.
When b is extended, the front side of the vehicle body floats, so the rail catch 20 is attached to the front side of the vehicle body, and furthermore, the front side of the vehicle body is pulled downward by being bitten by the rail, thereby lifting and supporting the rear side.

When the iron wheel 6 at the front part does not rotate in the loaded state, the center of gravity G2 of the vehicle body is often biased toward the rear side of the vehicle body. Then, the inner post 1b is extended to ground the ground plate 1c attached to the tip. Further, by extending the inner post 1b, as shown in FIG. 5, the front side of the vehicle body starts to float, and finally the front side is lifted and supported.

Further, another embodiment will be described with reference to FIGS. When the outer post 2a of the outrigger device 2 is attached to the vehicle body frame so as to be tiltable in the front-rear direction, as shown in FIG. 6, when the rear iron wheel 9 does not rotate, the center of gravity G2 of the vehicle body is shifted to the front side of the vehicle body. In many cases, the outrigger device 2 is set so that the lower end of the outrigger device 2 is located behind the vertical position with respect to the ground. In this state, the inner post 2b is extended to ground the ground plate 2c attached to the tip. Further, by extending the inner post 2b, the rear side of the vehicle body starts to float, and finally the rear side is lifted and supported.

Conversely, when the front iron wheel 6 does not rotate, the lower end of the outrigger device 2 is set so as to be located forward of the vertical position with respect to the ground. In this state, the inner post 2b is extended to ground the ground plate 2c attached to the tip. Further, by extending the inner post 2b, the front side of the vehicle body starts to float, and finally the front side is lifted and supported as shown in FIG.

In this state, the work vehicle is moved from that position by entering the lower part of the vehicle body from the side where the carriage 15 provided separately is lifted and supported.

[0028]

According to the present invention, when the iron wheel of the working vehicle is not operated, the outrigger device and the rail catch are used to lift and support the vehicle body only on the front side or the rear side irrespective of the empty or loaded state. Can be. Therefore, when the iron wheels and tire wheels are lifted off the railway rails, the track truck enters the lower part of the vehicle body to move the work vehicle. Can be.

Since the outrigger device is provided so as to be tiltable to the front and rear sides of the vehicle body, the vehicle body can be lifted and supported only on the front side or the rear side. Therefore, when the iron wheels and tire wheels are lifted off the railway rails, the track truck enters the lower part of the vehicle body to move the work vehicle. Can be.

Since the operation is performed using only the operation of the pair of outrigger devices supporting and lifting the vehicle body and the operation of the rail catch or the outrigger device, the time can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view of a track working vehicle of the present invention traveling on a general road.

FIG. 2 is an overall side view of the track work vehicle of the present invention traveling on a track.

FIG. 3 is an overall side view in which the rear portion of the vehicle body is lifted by operating the fixed outrigger device of the present invention.

FIG. 4 is an overall side view in which the track bogie is set on rear tire wheels from the state of FIG. 3;

FIG. 5 is an overall side view in which a front portion of the vehicle body is lifted.

FIG. 6 is an overall side view in which an outrigger device provided to be tiltable forward and backward is set rearward, and a rear portion is lifted.

FIG. 7 is an overall side view in which an outrigger device provided to be tiltable forward and backward is set forward, and a front portion is lifted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 2 Outrigger device 1a, 2a Outer post 1b, 2b Inner post 1c, 2c Ground plate 4, 5 Tire wheel 6, 9 Iron wheel 7, 10 Iron wheel driving device 8 Idle roller 11 Body 13 Cabin 14 Track 20 Rail catch

Claims (4)

[Claims] 1. A pair of rails for traveling on a track, and a lower end of the body being lifted and supported between a center of gravity of an unloaded side and a center of gravity of a loaded side of the vehicle body. The outrigger device includes an outer post fixed vertically to the vehicle body, an inner post extending downward from the outer post, and a ground plate attached to a lower end of the inner post. A lifting and supporting device for a railroad work vehicle. 2. An outrigger device for lifting and supporting a front or rear side of the vehicle body, a vehicle body mounting portion mounted on a vehicle body on the side opposite to the lifting support side of the vehicle body, and a rail on the other side. The lifting support device for a track work vehicle according to claim 1, further comprising a rail catch provided with a rail holding portion that holds the rail. 3. A pair of rails for running on a track, and a lower end of the body between a steel wheel for a track for running on a track and a center of gravity of an unloaded state and a center of gravity of a loaded body for lifting and supporting the body. An outer post provided so as to be tiltable in a longitudinal direction of the vehicle body from a vertical position on the vehicle body, an inner post extending downward from the outer post, and an outrigger device attached to a lower end of the inner post. A lifting and supporting apparatus for a track work vehicle, comprising: 4. The lifting support device for a track working vehicle according to claim 1, wherein said outrigger device is located within a vehicle width.