JPH05270366A - Car body lift up device for mobile working vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] Lifting up the car body by the stand, and
During work, even if the left and right sides of the black label cut or come off, a jack that can be set on either side can be used to enable lift-up. [Structure] One side of a vehicle body 2 having a traveling crawler 1 in the lateral direction is configured to be lifted up by a stand 9 capable of standing up while swinging, and the other side can be lifted up by a jack 12, and The feature is that the mounting position can be changed on either side.

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 Conventionally, a technique has been proposed in which a front part of a vehicle body is lifted up to the ground by a stand (a ground support member capable of standing up by rocking), and a rear part is lifted up by a jack.

[0003]

In the case of such a stand, this stand is used with its ground contact point as a reaction point.
An external force is applied along with driving of the vehicle body so that the vehicle body is rockably erected in a posture of lifting and supporting the vehicle body to the ground. Therefore, when the black label breaks or comes off, it is difficult to lift up by the stand, and it is necessary to rely on the lift up by the jack.

The present invention is intended to solve the problems of the prior arts, and in particular, the present invention does not matter whether the left and right sides of the black label are cut or removed during the operation. It is possible to lift up by using the jack that can be set on the side. To achieve this object, the present invention takes the following technical means.

[0005]

That is, the technical means according to the present invention is designed so that one side of the vehicle body 2 having the traveling crawler 1 in the lateral direction is lifted up by a stand 9 capable of swinging and standing. In addition to the construction, the other side can be lifted up by the jack 12 and the mounting position can be changed on either the left or right side.

[0006]

When the vehicle body is lifted, the lower end of the stand arm (ground support member 10) is tilted and grounded. Therefore, the operator operates the traveling operation lever 5 of the driving control unit to drive the traveling crawler 2 to advance the machine body. Then, the vehicle body 2 receives an external force caused by driving the vehicle body 2, and the stand arm 10 sequentially oscillates and stands up with the ground contact point as a reaction force point.

When the entire grounding stability holding member 11 is grounded, the standing stable posture is maintained, and one side of the vehicle body is lifted to the ground together with the traveling crawlers. And
By lifting the other side of the vehicle body with the jack 12, the left and right traveling crawlers 1, 1 as a whole float above the ground. If the black label breaks or detaches during work, the jack can be attached to either the left or right frame even if the stand cannot be lifted up. Can be exchanged by jacking up the frame on the detached side).

[0008]

As described above, in short, according to the present invention, the entire traveling crawler can be levitated above ground.
It is possible to idle only the chlora part, and by simply applying water to the chlora part, mud and straw debris can be easily removed. In particular, if the black label breaks during work, the jack can be attached and changed to either the left or right frame, even if the stand cannot be lifted up, so the frame on the side with the black label cut can be changed. It's convenient because you can jack up and replace it.

[0009]

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

A control box 6 having an operation lever (HST lever of hydraulic continuously variable transmission) 5 for controlling the forward and backward traveling of the body is installed on one side of the reaping section 3. The traveling crawler 1 is composed of a driving wheel 1a, a driven wheel 1b, a rolling wheel 1c, a croravelto 1d wound around these, and the like. On one side of the vehicle body 2, there is provided a stand 9 which is swingable around the axis of a support shaft 8 which is installed laterally with respect to the traveling frame 7.

The stand 9 is a stand arm (ground support member 10) and a ground stabilizing member 11 is provided at the ground side end of the stand arm 10 so as to be L-shaped in a side view. It is provided so that one can be set on the front side and the other on the rear side of the center of gravity in the longitudinal direction of the aircraft. Then, a jack 12 that can be raised and lowered on the other side of the vehicle body 2
Is provided. This jack 12 is one of the support members 13 and 13 ′ protruding from the vehicle body 2 toward the left and right outer sides.
It is detachably attached via the pin shaft 14 so that it can be worn on either the left or right side.

A working machine 1 such as a cutter is provided at the rear of the combine.
When 5 is not set, or when the work machine is removed for maintenance even if it is set, the load applied to the crawler becomes small, so the traction force of the crawler decreases and the stand Is hard to stand up. In such a case, if the mounting position of the stand can be changed back and forth (selection of mounting hole 16.16) as shown in FIGS. 4 to 5, the optimum position for the traction force of the crawler can be obtained. You can choose. That is, for example, when there is no working machine, the mounting position of the stand is changed to the front side compared to when the working machine is set.

The embodiment shown in FIGS. 7 to 8 is constructed so that the length of the ground contact stabilizing member 11 can be changed from L ₁ to L ₂ shown in FIGS. 8A and 8B. . Reference numeral 17 is a lock pin that locks after its length is changed. In the standard crawler, even if the driving force of the crawler and the force to prevent overrun at the ground contact stabilizing member 11 are balanced, replace it with a super wetland chlora for work in wetlands. Sometimes work. At this time, the driving force of the crawler increases, so if the length of the grounding stability holding member 11 is constant,
It is dangerous to balun, but it can be solved by making appropriate changes as described above.

As the construction of the stand 9, in the embodiment shown in FIGS. 9 and 10, the center line C of the stand arm 10 when standing up is inclined with respect to the perpendicular line T passing through the axis of the support shaft 8. Is configured to hold. In other words, when the stand 9 stands up from the state of FIG. 9 to the state of FIG. 10, the ground stable holding member 11 at the lower end is grounded and held after the fulcrum is crossed. It can stand upright and can maintain a stable state even after standing up.

The embodiment shown in FIGS. 11 and 12 has a side view L.
In the character-shaped stand 9, the stand 9 is provided with an auxiliary standing plate 18 for grounding P _{1 at} a predetermined distance from the grounding point P ₂ before standing (state of FIG. 11). In the stand 9, the smaller the ground contact angle E ₂ is, the easier it is to stand up. However, since the length of L is shortened, the ascending height of the body is correspondingly reduced.

Therefore, in such an embodiment, the auxiliary standing plate 18
Since the contact angle with the ground is reduced to E ₂ → E ₁ , it is possible to surely stand up even on a slippery surface and to raise the machine body high. That is, when the machine body is advanced in the state of FIG. 11, the machine body first rises with the ground contact point P ₁ of the auxiliary upright plate 18 as a support point, and finally the stand 9
The grounding point P ₂ will support the aircraft.

[Brief description of drawings]

FIG. 1 is a 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 rear view of the main part of the combine.

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

FIG. 5 is a side view of the main part of the combine.

FIG. 6 is a perspective view showing a mounted state of a stand.

FIG. 7 is a front view of a main part of a stand.

FIG. 8 is a cutaway side view of a main part of the stand.

FIG. 9 is a side view of the main part of the combine.

FIG. 10 is a side view of the main part of the combine.

FIG. 11 is a side view of the main part of the combine.

FIG. 12 is a side view of the main part of the combine.

[Explanation of symbols]

 1 Running Crawler 2 Car Body 3 Mowing Section 4 Threshing Section 5 Operation Lever 6 Control Box 7 Traveling Frame 8 Supporting Shaft 9 Stand 10 Stand Arm 11 Ground Stability Holding Member 12 Jack 13 Supporting Member 14 Pin Shaft 15 Work Machine 16 Mounting hole 17 Lock pin 18 Auxiliary standing plate

Claims (1)

[Claims] 1. A structure in which one side of a vehicle body 2 having a traveling crawler 1 in the lateral direction is lifted up by a stand 9 capable of swinging and standing, and the other side can be lifted up by a jack 12. Further, the vehicle body lift-up device for a mobile work vehicle, characterized in that the mounting position can be changed on either the left side or the right side.