JPS60188004A - Machine body controller in moving work machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention is applied, for example, to a body control device in a walking type III transplanter that uses a float and running wheels, or a mobile work machine.

[Prior art 1 For example, walking type [[J 4ifi 61 and J3]
[] - Contact with 01 plane tI! A swing control valve that senses the I pressure and controls the supply of pressure oil to the hydraulic cylinder is installed (1711). Then, the lift 1 control lever, which is operated separately, for example (111 匈Turn Tsujilever) is controlled by the Nli River lever to lower the wheels and lift the rice transplanter body. It is possible to supply a fixed amount of pressure oil. When a predetermined lift is achieved, the swing control valve is forcibly pulled back to the center position, causing the cylinder to become blocked. [Technique of invention (!Fj problem) The problem with this type of control device m is that the lift was achieved, but in addition [+1 transplanter (moving work (number)) If the valve is stuck, the valve will be in the neutral position and no further lifting operation can be performed. [Object of the Invention] The present invention has been made based on the above circumstances. Even if the swing control valve is in the neutral position when the wheels are lowered and the main body is in the lift 1 position during non-operation, the hydraulic cylinder is further activated to prevent further lift operation. Movement f￥: This is an attempt to provide a new body control device for musical instruments.

Technical Configuration of the Invention To achieve this objective, the present invention provides a contact point for the ground side of the main body of the mobile work machine. The swing control valve is equipped with a swing control valve that senses pressure fluctuations and controls the supply of pressure oil to the oil cylinder.
A lift control lever separately operated by the 71 industry station supplies 11 oil to the hydraulic cylinder for a predetermined period so as to lower the middle wheel, and the hydraulic cylinder LJ has a separate control for the pressure oil applied for a predetermined period. It is characterized by a structure in which pressure is applied by a valve and the lift by the hydraulic cylinder is controlled to an unprecedented level. [Example] Below are the drawings. Please refer to J.
3 CS code 81 is the main body of the rice transplanter, and the engine 3 is mounted on the front frame 2. In the middle between the front frame 2 and the rear frame 4, there is a mission 5 which is a part of the ffl Uebetsu-Kikyu 1 body component. Power is transmitted to the transmission 5 from the engine 3 through a belt transmission system 6. Further, a part of the Mitsushicon 5 has an oil 111 perspective 1, which is driven by the power from the mission 5. On both sides of the above mission 5, that is, on both sides of the main body 1, there are gear 17 boxes 8.8, and there are mounted cases 9, 9 that also serve as swing arms,
The curved end of the wheel is pivoted to the transmission 5, and the rear end of the wheel is pivoted to the wheel 10.10. and the above Mitsushicon 5
From there, the wheels 10.10 are driven through a chain transmission system installed in the chain case 9.9. vlh is transmitted. In addition, the above-mentioned mission 5 is equipped with a transmission system in the rear part 71 and 4 so that the power is transmitted to the transplanter OtgS11 installed in the rear part of the transplanter Mokukyu 1.
ing. The chain cases 9.9 and 9.9 above are each provided with interlocking arms 12.12, which have interlocking arms 13.1
A balance 14 is connected via 3, and this balance 14 is connected to a piston [1] of a hydraulic cylinder 15. - Please note the supply of pressure oil to the oil cylinder 15 c''
Control the swing of the F1F1 case, move the wheels 10°10 to the III Uetsuki plant body 1, and lower it relatively.
By releasing the pressure oil from the hydraulic cylinder 15, the rotor case 9.9 is controlled to swing in the opposite direction (by 4 loads), and the middle wheel 10.10 is moved relative to the EEI planter. The above E [(On the lower side of the planter water body 1, there is
are arranged, and these senna 70-1 to 17 have their rear parts pivoted to the rice transplanter main body 1 with a pivot 18, and 1. :
The front part of the front part is connected to the [EI
4t? i 4jJt C is connected to Thu 1. Also above)
A hinge rod 20 extends from the ground 17 and is connected to an operating arm 22 of a swing control valve (spool type) 21. Pressure oil is supplied to the swing control valve 21 from the oil h-pump 23, and the release times j'l! j
'J so that the oil pressure of the -C hydraulic tank 25 is restored through 24.
-,). , JL oil pressure cylinder 15, through the inside and passage 2G.
It is provided with another communicating cylinder chamber 2γ, and a free piston 29 supported by a spring 28 is provided therein. Then, on the opposite side of the cylinder chamber 27, there is the oil pump 23 and the swing control valve 21.
A switching valve 3o disposed between the cylinder chamber 2 and the cylinder chamber 2 is connected to the cylinder chamber 2.
1 is in communication with the hydraulic pump 23, and a position in which the cylinder 927 is in branch communication with the hydraulic pump 23 and the swing control valve 21 is controlled. This is a spool valve, and the spool is used as a lever 31 that is also used as a planting lever, hydraulic lever, side clutch lever, etc.
operated by. This 1. :The connection between the switching valve 30 and the control lever 31 is connected to the control lever 1-1.
are connected with. Further, the lever 31 is moved to another operating stroke range (at 6 the swing control valve 21
UA3 also serves as a lift control lever for operating the rice body 1, and the above swing control pulse 1
The long hole 33 provided in the operating arm 22 of 21 is connected to the controller l-D.
The operating pin 35 at one end of the lever wire 34 is inserted, and the other end of the lever 34 is connected to the lever 31 so that it can be operated in conjunction. In such a configuration, during planting work, the sensor raft 17 has different depths and irregularities depending on the depth and unevenness of the LL assembly board.
As the ground contact pressure with the rice field corresponding to the vertical movement of both wheels 10.10 is applied, this was detected)
The operating arm 22 is rotated via the V-shaped sensor rod 20, and the swing control valve 21 is switched. At this time, the switching valve 30 brings the hydraulic pump 23 and the swing control valve 21 into communication. Connection 11 with J Nawara 111! When IJ: exceeds the set value, the swing control valve 21 is switched and pressure oil is supplied to the hydraulic cylinder 15, so that the balance 14. Stanza 8 [''Rad 13. The 1 encasing 9 is swung through the continuous vj arm 12, and the wheels 10 are lowered relative to the 1J-1 transplanter 1. As a result, the grounding pressure between C1 and 1 is set (when the swing control valve 21 returns to 1r1, the swing control valve 21 becomes the neutral position, and the pressure oil in the hydraulic cylinder 15 is blocked. Setting (C1 wheel io, the swing control valve 21 is switched, and the pressure oil of the corresponding hydraulic cylinder 14 is released.
J, rib-encase between io and car body 9.9
swings and raises the wheel 10.10 relative to the main body 1. (When it is necessary to lift the rice transplanter main body 1, such as when turning the rice transplanter body, for example, operate the planting clutch to the 1st position) and operate the lever 31 to control the Then, the bottle head 35 is moved, and the operating arm 22 is further rotated at the end of the elongated hole 33, so that one oil is supplied to the hydraulic cylinder 15 until a predetermined amount of oil is supplied to the hydraulic cylinder 15. Then, when a predetermined amount of oil is supplied, the swing control valve 21 returns to the middle position and the lift operation is completed. Even in this state, the rice transplanter body 1
When it is deep in ltX, move the lever 31,
Rotate to the range of the IC operation stroke set in . As a result, the CVJ switching valve 30 is switched, 11-oil is supplied to the back of the cylinder 5C21, and the suffling 2
8, the tree piston 29 is operated against pressure 8, pressure oil is pushed out into the hydraulic cylinder 15, and the piston 1'' Rad 16 is protruded 1°.Thus, the lit operation of the E-Nisshu+i main body 1 is further achieved. In addition, in the figure, the code|symbol 36 is a -f-nick valve, and 37 is a release valve. In a3 of the above embodiment, in the case where the present invention is applied to a walking rice transplanter, the present invention has a sensing function.
It can be similarly widely applied to any number of moving operations that require covering the running wheels.

[Efficacy of invention]

The present invention is as described below, and the swing control valve is in the neutral position when the wheels are lowered during non-operation such as when the aircraft is turning, and the swing control valve is in the neutral position with the C1 construction g4m tree body lifted.
1. ! (Since the lifting operation beyond that is made 11 functions, when the work equipment is stuck in a deep place, it is possible to realize a convenient situation to lift the work equipment and bring it out from the depth.) (3) To be done.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the present invention, FIG. 2 is a 1'L side view of the same, and FIG. 3 is a 4]4 diagram of a hydraulic control system. 1...III transplanter main body, 2...front frame, 3...
... Engine, 4 ... Rear frame, 5 ... Mitsushicon, 6 ... Belt transmission system, 7 ... Oil Lf machine groove, 8
... Gi 12 box, 9... Chain case, 10.
...Summer wheel, 11...Planting part, 12...Region i1+ arm, 13...Region 1FII [cotton], 14...Balance, 15...Hydraulic cylinder, 16...Piston rod , 17...Sen9-)

[''-t, 17... axis, 1
9... Bending and extending link machine (to 1, 20... [?nsa rod, 21... Swing control valve, 22... Operating arm, 23... Hydraulic pump, 24... Release circuit, 25... ... Oil tank, 26 ... Passage, 27 ... Cylinder chamber, 28 ... Subring, 29 ... Free screw, 30 ... Control valve, 31 ... Control lever, 32 ... ...Comte []-Ruwai A7.33...
Elongated hole, 34... Control Y i2.35... Pin head, 3G... Di]-Tsuku valve, 37... Release valve. Patent applicant: 1EISQ Agricultural Machinery Co., Ltd. J111 Patent attorney: Jundo Haku Kobashi Patent attorney: Susumu Murai

Claims (1)

[Claims] A swing control system is installed on the ground side of the mobile work machine that is constantly in use, detecting ground pressure fluctuations on the flow 1 and controlling the supply of pressure oil to the hydraulic cylinder. Valve (Riff 1 that is operated separately when not working)
Lower the control lever C11j to . 1. Sea urchin top 1i
In a system that supplies a predetermined amount of pressure oil to a hydraulic cylinder C, the hydraulic cylinder applies a pressure of a predetermined amount of pressure to the returned pressure oil using another control valve, and the oil L1 is refluxed by the cylinder. A mobile work that is characterized by the fact that it is controlled so that it becomes even more isolated.