JPH05178171A - Lift-up device for movable work vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] By ensuring the lifting action of the vehicle body and lifting the vehicle body together with the traveling crawlers to the ground, it is possible to easily and efficiently perform the work such as cleaning, attaching and detaching the traveling crawlers. It is something that is often done. A ground support member (13, 13) is provided on a vehicle body (2) equipped with a running crawler (1) so as to be swingable about a lateral lateral axis at left and right outer positions of the running crawler (1, 1). The ground support members 13 and 13 are configured to be swingable in a posture in which the vehicle body 2 is lifted and supported on the ground by applying an external force accompanying the driving traveling of the vehicle body with the ground contact point as a reaction force point. In the mobile work vehicle, the left and right ground support members 13, 13 are configured so that the left and right can swing integrally and can be slidably adjusted in the lateral width direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body lift-up device for a mobile work vehicle having a traveling crawler at the bottom of the vehicle body.

[0002]

2. Description of the Related Art A mobile work vehicle with a traveling crawl of this kind is used to lift the vehicle body when inspecting and servicing the traveling crawler, replacing the crowbar label or cleaning the traveling crawler. It is convenient to do this after the traveling crawler is levitated from the ground for a certain distance, and the work can be done efficiently.

In particular, in the conventional combine harvester, when the mud and the debris are removed when entering a wetland or the like, it is not possible to raise the vehicle body to the ground and idle only the crower. -It was difficult to clean the inside of LA.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the problems of the prior art, and in particular, the present invention raises the vehicle body to the ground to inspect and maintain the traveling crawlers. It is intended to perform work such as cleaning simply and efficiently. To achieve this object, the present invention takes the following technical means.

[0005]

[Means for Solving the Problems] That is, the technical means according to the present invention includes a vehicle body 2 having a traveling crawler 1,
Ground support members 13 and 13 which are swingable around left and right lateral axes are provided at both left and right outer positions of the traveling crawlers 1 and 1, and the ground support members 13 and 13 are reversed at their ground points. As a power point, in a mobile work vehicle that is configured to be swingable in a posture of lifting and supporting the vehicle body 2 on the ground by applying an external force accompanying the driving traveling of the vehicle body, the left and right ground support members 13, 13 are It is characterized in that the left and right sides are integrally swingable and can be slidably adjusted in the lateral width direction.

[0006]

When the vehicle body is lifted, the lower end of the stand 15 is tilted and grounded. Therefore, the operator puts his / her foot on the upper surface of the grounding stability holding member 14 provided at the lower end of the stand so that the grounding point at the lower end of the stand does not move, puts his / her weight on the foot, and fixes the state. By operating the traveling operation lever 8, the traveling crawler 2 is driven to advance the machine body.

Then, the vehicle body 2 receives an external force caused by driving the vehicle body 2, and the grounding support member 13 sequentially oscillates and stands up using the grounding point as a reaction point, and the entire grounding stability holding member 14 is grounded. As a result, a stable standing posture is maintained, and the front part of the vehicle body is lifted to the ground together with the running crawler.
Then, by lifting the rear portion of the vehicle body with the jack 16, the entire traveling crawler 1 is floated above ground.

Before replacing the black label,
Adjust the left and right stands by sliding them outward.

[0009]

As described above, according to the present invention, since the entire traveling crawler can be levitated above the ground, only the crawler portion can be idled and only water is applied to the crawler portion. Since the crawler part rotates at a high speed, mud and straw debris can be easily removed, and maintenance can be improved.

Even when the crawler is removed, since the crawler is separated from the ground, the tension bolts of the crawler can be easily loosened, and the left and right ground support members are outwardly moved. Since it can be moved and adjusted, it is easy to attach / detach and replace the black label. Since the left and right stands (ground support members) have an integrated rocking structure, even if the height of the road surface at the left and right positions is different, when one of the stands stands upright, the other side works in conjunction with this. The stand also works, and the vehicle body can be reliably lifted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine as an example of a mobile work vehicle, in which a mowing unit 3 is provided in front of a vehicle body 2 equipped with a traveling crawler 1.
Is provided so as to be able to move up and down around the horizontal axis 4, and the threshing section 5 is provided on the vehicle body 2.
Is installed to configure the combine.

An engine 6 is mounted on one side of the reaping section 3, a driver's seat 7 is provided above the engine 6, and an operating lever (hydraulic pressure) for controlling the forward and backward traveling of the body is provided near the driver's seat. A control box 9 including an HST lever 8) of a continuously variable transmission is installed. A grain bagging processing device including a hopper 10 and the like is arranged on the lateral side of the threshing unit 5.

The traveling crawler 1 includes a driving wheel 1a and a driven wheel 1
b, a wheel 1c, and a cro-labeled 1d wound around these. A support shaft 11 is laterally installed on the front portion of the vehicle body 2, and a bearing is configured so as to be rotatable about the axis of the traveling frame 12. A grounding stabilizing holding member 14 is provided at the tip of the grounding supporting member 13 so as to be L-shaped in a side view to form a lifting / lowering stand 15. The stand 15 connects the base portion of the grounding supporting member 13 to the support shaft 11 described above. It is provided so as to be swingable in the front-rear direction of the machine body by being fitted and fixed to.

The support shaft 11 is divided into two parts at the intermediate part, and the engaging convex parts 11 are provided on opposite sides of the two so that they can rotate in conjunction with each other.
a and an engaging recess 11b are provided and fitted to each other, so that the left and right ground support members 13, 13 swing integrally. Moreover, the left and right ground support members 13, 13 are configured to be slidable in the lateral width direction. Of course, even after such slide adjustment of the ground support member 13, the left and right ground support members 13, 13 can be configured to integrally swing. The ground-stability holding member 14 has a wide structure so that when the body is lifted, the user can place his / her feet on the ground and step on the ground to fix it.

Further, the lifting / lowering stand 15 has a length L from a supporting position on the support shaft 11 to a grounding point P of the grounding stability holding member 14 larger than a ground height H at the supporting position. There is. Further, the lifting stand 15 is arranged on both the left and right outer sides of the machine body. Especially, since the center of gravity of the machine body in the front-rear direction is located on the front side of the traveling crawler 1,
They are arranged on both outer sides of the left and right traveling crawlers 1, 1 near the center of gravity position.

A jack 16 which can be moved up and down is installed at the center of the vehicle body in the lateral width direction at the rear of the vehicle body. Therefore,
The entire mobile work vehicle can be lifted by the three-point support of the left and right stands 15 at the front of the vehicle body and the rear jacks 16. Left and right stand 15,1
With the configuration in which 5 swings separately, there is no problem if the road surface is flat, but when lifting the combine on a farm road, etc., if the height of the road surface is different from left to right, the side grounded on the road surface The stand can lift the combine properly, but there was a problem that the stand on the side that was not securely grounded to the road surface did not stand up or stood up halfway. However, in the case where the left and right stands are integrally rocked as described above, even if the height of the road surface at the left and right positions is different, if one of the stands stands upright,
The stand on the other side works in conjunction with this, and the front portion of the combine can be reliably lifted.

When removing the cloro label, the stands standing upright at the approaching position interfere with each other. Therefore, the left and right stands are held at a position for holding a space of at least the width of the chlora (virtual). Slide outward until it reaches the line position). Then, under such a condition, the stand can be swung upright and the vehicle body can be lifted. Therefore, when the black label is exchanged or detached, the space is changed.
It can be done easily in the room.

[Brief description of drawings]

FIG. 1 is a right side view of a main part of a combine.

FIG. 2 is a rear view of the main part of the combine.

FIG. 3 is a cutaway rear view of the main part.

FIG. 4 is a left side view of the main part of the combine.

[Explanation of symbols]

 1 Running Crawler 2 Car Body 3 Mowing Section 4 Horizontal Axis 5 Threshing Section 6 Engine 7 Driver's Seat 8 Operating Lever 9 Control Box 10 Hopper 11 Spindle 12 Traveling Frame Pipe 13 Ground Supporting Member 14 Ground Stabilizing Member 15 Lifting Stand 16 jack

Claims (1)

[Claims] 1. A vehicle body 2 equipped with a traveling crawler 1 is provided with ground support members 13, 13 which are swingable about left and right lateral axial centers at both left and right outside positions of the traveling crawlers 1, 1. In addition, the ground support members 13 and 13 are configured to be swingable in a posture of lifting and supporting the vehicle body 2 over the ground by applying an external force accompanying the driving traveling of the vehicle body with the ground contact point as a reaction point. In the mobile work vehicle described above, the left and right ground support members 13, 13 are configured such that the left and right are integrally swingable, and the slide adjustment is possible in the lateral width direction. Car body lift-up device.