JPH05294216A - Body lift-up device in mobile working vehicle - Google Patents

Abstract

PURPOSE:To make stuck mud fall easily by relaxing the tension state of a crawler belt in a traveling crawler at the time of lifting up a body, and turning this loosened crawler belt at high speed. CONSTITUTION:A locomotive working vehicle is provided with a lift-up means 8 for lifting up a body provided with a traveling crawler 1 from the ground, a lift-up detecting means 11 for detecting the lifted-up state of the body, and a means for relaxing the tension state of the traveling crawler 1 automatically on the basis of the detection result of the lift-up detecting means 11.

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 equipped with a traveling crawler and is applied to a combine or the like.

[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]

SUMMARY OF THE INVENTION The present invention is such that, when the vehicle body is lifted up, the tension of the crowbar label in the traveling crawler is automatically loosened.
This is by turning the loose croat label at high speed,
This is to make it easier for the adhered mud to fall off. To achieve this object, the present invention takes the following technical means.

[0004]

That is, the technical means according to the present invention is provided with lift-up means 8 for lifting up the vehicle body 2 equipped with the traveling crawler 1 to the ground, and the lift-up state of the vehicle body is set. Lift-up detecting means 11 for detecting is provided, and means for automatically relaxing the tension state of the traveling crawler based on the detection result of the lift-up detecting means is provided. ..

[0005]

When the vehicle body is lifted up, the lower end of the stand 8 is grounded in an inclined posture and the traveling crawler 1 is driven by the operation of the traveling operation lever 5 to advance the machine body. Stands up by pushing over the ground and maintains a stable standing posture by crossing the fulcrum, whereby the vehicle body is lifted upward.

When the standing and stable posture of the stand 8 is maintained, the detection device 12 is activated at this point,
As a result of the detection, the cylinder contracts, the driven wheel moves to the drive wheel side, and the chromatic label automatically loosens. Under such a condition, when the traveling chrome is driven and rotated at a high speed, the slackened chloro label will rotate while vibrating violently. It will surely be shaken off.

[0007]

As described above, according to the present invention, when the vehicle body is lifted, the croato label is automatically slackened. Therefore, if the velcro belt is rotated at a high speed, a large vibration is generated and the chrome label adheres. It is possible to effectively shake off the existing mud.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The figure shows an example of a combine, in which a threshing section 3 is mounted on a vehicle body 2 equipped with a traveling crawler 1, and a mowing section 4 is equipped in the front. An engine is mounted on one side of the reaping section, a driver's seat is located above the engine, and an operation lever (H / S / T lever) 5 that controls the forward / backward movement of the aircraft near this driver's seat. An operation box 6 having the above items is installed. The traveling crawler 1 includes a driving wheel 1a, a driven wheel 1b, a rolling wheel 1c, and a chloro label 1d wound around these.
And so on.

As a vehicle body lift-up means, front and rear portions of the vehicle body 2 are provided with stands 8, which can be undulated around a support shaft 7, 7.
8 are provided. The stand 8 is constituted by a stand arm 9 and a grounding stable holding member 10 so as to have a substantially L shape in a side view. Then, the lower end of the stand arm 9 is brought into contact with the ground in an inclined posture, and then the traveling crawler is driven to advance the machine body, and the stands 8 and 8 project the ground to support the spindles 7 and 7. It is configured to stand up and lift up the car body.

Between the stand 8 and the vehicle body 2, when the stand 8 maintains a standing upright posture beyond a fulcrum, the standing upright posture is detected and the tensioning / relaxing means of the traveling crawler is activated. A detection device 11 is provided, and the hydraulic cylinder 12 is driven in the reduction direction based on the detection result of the detection device 11 to move the driven wheel 1b to the drive wheel 1a side. Is gradually loosening. When the hydraulic cylinder 12 is driven in the extension direction opposite to the above, the driven wheel 1b moves to the side opposite to the driving wheel 1a and the slackened croravelto 1d returns to the original tensioned state. .

If the stand 8 and the traveling frame pipe 2a are also provided with an air nozzle 13, and this is connected to a compressor 14 and air is blown, the crawler is rotated at a high speed. , The mud dropping effect is doubled.

[0012]

[Other Embodiment] An embodiment shown in FIGS. 5 to 6 will be described. On the front side of the vehicle body 2, there is provided a stand 8 capable of undulating around a support shaft 7 which is installed in the lateral direction, and on the rear portion of the vehicle body, there is provided a jack 15 which can be raised and lowered as a rear ground support member at the center portion in the vehicle lateral direction. It is installed in.

Therefore, the entire mobile work vehicle can be lifted by the three-point support of the left and right stands 8 on the front of the vehicle body and the rear jack 15. Then, in the stand 8 having such a configuration, the length of the stand 8 can be changed and adjusted. That is, the stand arms 9a and 9b are configured to be expandable and contractable, and the adjustment holes 16 and the pin shaft 17 can be adjusted in two steps. Therefore, if such a configuration is adopted, for example, as shown in FIG.
Is lifted to a position where it slightly floats above the ground, but the traveling crawler 1 on the other side is lifted more than that to tilt the entire vehicle body and make it easier to clean mud and the like inside the wheels. be able to.

The embodiment shown in FIGS. 7 to 9 has a construction in which the hydraulic jack 15J is used as means for lifting the rear portion of the vehicle body, but it can be raised and lowered around the fulcrum P and is shown in the stored state shown in FIG. 8 and FIG. It can be changed to the standing state. Reference numeral 18 is a fulcrum crossing spring, and 19 is a stopper.
Although the embodiment shown in FIGS. 10 to 12 has a configuration in which the entire body is fully up by one stand 8S, if the fulcrum A of the stand 8S is provided on the vehicle body 2 and the grounding point of the stand 8S is B, the center of gravity is The position G is provided within a range L between A and B in a side view, and within a range with a ground contact length l when the stand stands up.

In the embodiment shown in FIGS. 13 to 14, the rear end side of the traveling frame 20 is provided so as to be able to oscillate and stand around the fulcrum O so that the grounding stand 21 is also used. The raising / lowering drive device 22 of the reaping unit 4 uses a returning piston type hydraulic cylinder. Therefore, according to such a configuration, as shown in FIG.
As shown in FIG. 3, first, the sleeper base 23 is prepared, and the traveling crawler 1 is mounted on the sleeper base 23 while the machine body is backed, and the rear side of the vehicle body is lifted. After that, the stand 21 is rocked upright and grounded on the ground. Then, pressure oil is supplied to the lifting drive device 22 of the mowing section 4 to forcibly move the mowing section downward with respect to the vehicle body 2,
When pressure oil is still supplied to the lifting drive device 22 with the bottom frame of the mowing section being in contact with the ground, the bottom frame of the mowing section is used as a ground support point for the front side of the vehicle body 2. ,
That is, the front side of the traveling crawler 1 is lifted, and the entire traveling crawler is easily levitated to the ground.

[Brief description of drawings]

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

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

FIG. 3 is a side view of the main part of the combine.

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

FIG. 7 is a rear view of the main part of the combine.

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

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

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 rear view of the main part of the combine.

FIG. 13 is a side view of the main part of the combine.

FIG. 14 is a side view of the main part of the combine.

[Explanation of symbols]

 1 Running Crawler 2 Car Body 3 Threshing Part 4 Mowing Part 5 Operation Lever 6 Operation Box 7 Spindle 8 Stand 9 Stand Arm 10 Ground Stability Holding Member 11 Detection Device 12 Hydraulic Cylinder-

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Riichi Ochi 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A lift-up means 8 for lifting up a vehicle body 2 having a traveling crawler 1 to ground is provided.
Lift-up detection means 11 for detecting the lift-up state of the vehicle body is provided, and means for automatically relaxing the tension state of the traveling crawler based on the detection result of the lift-up detection means is provided. A vehicle body lift-up device for a mobile work vehicle.