JP3520529B2 - Work machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working machine for preventing a seedling planting posture from being disturbed by the influence of wind when planting seedlings. 2. Description of the Related Art Conventionally, on windy days, the attitude of planting seedlings has sometimes been disturbed. An object of the present invention is to solve such a conventional problem. [0003] In order to solve the above-mentioned problems, the present invention employs the following technical means. That is,
The vehicle body 4 is advanced by the driving wheels 2 and 3, and the grounding bodies 27 and 28 are placed near the seedling-planting position.
The arm 30 is provided so as to be supported by an arm 30 that rotates vertically with respect to 0,
Rotating case 21 bearing on the planting transmission case 20
In the working machine for planting seedlings by the planting device 22 provided in the plant, a wind shield 65 is provided outside the planting device 22 by attaching it to the planting transmission case 20, and it is confirmed that the wind is strong by the anemometer 63. When the detection is performed, the work machine is provided with control means for rotating the arm 30 upward to move the grounding bodies 27 and 28 upward. According to the working machine of the present invention, when the arm 30 is turned up and down, the grounding bodies 27 and 28 move up and down with respect to the rotating case 21 near the seedling planting position. Since the ground height of 21 changes, the planting depth of the seedlings by the planting device 22 can be changed. Further, when the vehicle body 4 is advanced by the drive wheels 2 and 3 and the planting device 22 plants the seedlings, the wind shield 65 prevents the seedlings from being disturbed by the strong wind and disturbing the planting posture. Further, when it is detected by the anemometer 63 that the wind is strong, the arm 30 is turned upward to rotate the arm 30 and the grounding body 27,
Since the seedling 28 is moved upward, the planting depth of the seedling by the planting device 22 is increased, and the planted seedling is prevented from falling down due to strong wind. Further, by moving the grounding bodies 27 and 28 upward, the wind shield 6 attached to the planting transmission case 20 is prevented.
Since the gap between 5 and the ground is narrowed, it is possible to suppress the flow of the wind from the gap to the seedling to be planted, and to suppress the disturbed planting posture due to the strong wind. Therefore, it is possible to prevent the seedling planting posture from being disturbed even on a windy day, and to solve the conventional problems. 1 shows a riding type rice transplanter having the following configuration. A riding floor 5 is stretched above a vehicle body 4 having a pair of left and right driving front wheels 2, 2 and a pair of left and right driving rear wheels 3, 3, and a steering frame 6 is erected in the front left and right central portions. Then, a steering handle 7 is provided, and a prime mover 8 is mounted on the vehicle body 4 on the rear side thereof, the floor 5 is bulged upward so as to cover it, and a cockpit 10 is provided on the bulging portion 9 of the cover. And Reference numeral 11 denotes a front transmission case, and 12 denotes a rear transmission case. Reference numeral 13 denotes a lifting link mechanism. In this method, a column 14 is erected on the rear end of the vehicle body 4, the bases of the upper and lower link rods 15a and 15b are pivotally connected thereto, and the vertical link frame 15c is pivotally connected to the rear end. A rolling hitch 16 for connecting a working machine to the link frame 15c is provided integrally. And this upper link 15
and a piston 18a of a hydraulic device 18 having a base end pivotally connected to the vehicle body side.
7 and the lifting link mechanism 13 is
It is configured to be driven by. Reference numeral 19 denotes a rice transplanter, which is an example of a working machine, which is provided with a planting device 22 mounted on a rotating case 21 at a lower rear end side of a planting transmission case 20, and a seedling mounting table 13 at an upper front side thereof.
Is supported from the case 20 side via support members 23 and 24 so as to be able to reciprocate left and right, and the seedling mounting table 13 is connected to a moving rod 25 interlocked with a left and right reciprocal lateral movement mechanism in the case 20. . Then, a stopper 26 for receiving a seedling having a seedling dividing port provided at the lower end side of the seedling mounting table 13 is fixedly attached to the case 20 side, and the planting device 22 separates the seedling from the seedling dividing port and planting. It is configured to attach. 27
Indicates a center float, and 28, 28 indicate side floats disposed on the left and right outer sides. Both are pivotally attached to the case 20 side by a planting depth adjusting lever 29 so that the planting planting depth can be adjusted. A rear side is pivotally attached to an arm 30 operable so as to be rotatable, and a front side is attached to the case 20 by expansion and contraction links 31 and 32 so as to be vertically movable. The hydraulic device 1 is disposed between the distal end of the center float 27 and the projection 33 fixed to the case 20.
8, when the float 17 is pushed upward by a certain amount or more to approach the case 20 side, the piston 18a of the hydraulic device 18 is switched so as to protrude, and the planting device 22 is raised, Conversely, when the airbag is suspended downward and opened at a certain interval, the piston 18
The control is performed such that a is switched so as to retract and the planting device 22 is lowered. It should be noted that the switching valve 3
4 is configured so that the switching operation can be performed by the operation lever 35 beside the seat. Reference numeral 36 denotes a fertilizer application device, and a fertilizer storage hopper 37.
And a fertilizer feeding section 38 provided at a lower portion thereof, a hose 39 for transferring the fed fertilizer, a groove generator 40 provided on the floats 27 and 28, and the like.
8 to drive the fertilizer to the hose 39, which is transported through the hose by the wind pressure of the air blower 42 and discharged into the formation groove by the groove generator 40 so that fertilization can be performed simultaneously with the rice transplanting operation. I have. Reference numeral 43 denotes a rolling control device, which is provided with an electric cylinder 44 above the vertical link frame 15c, and pulls the operating piston and the seedling mounting table support member 24, which is an integral part of the planting device 22, by a spring 45. And connect
When the planting device 22 is greatly inclined to one of the left and right sides, this is detected by the rolling sensor 46, the electric cylinder 44 is driven, and the planting device 22 is restored to the left and right horizontal side. ing. The rolling sensor 46 for detecting the inclination to the left and right is not limited to a sensor for simply detecting the inclination, but is an acceleration detection sensor. If the configuration is such that the piston protruding speed or the retracting speed of the electric cylinder 44 is changed so that the restoration speed fluctuates according to the acceleration of the tilting movement, the rolling control becomes accurate. Reference numeral 47 denotes a throttle lever for changing and adjusting the rotation speed of the output shaft of the motor 8. In the above basic configuration,
On windy days, the planting posture may be seen. Therefore, when the planting claw of the planting device 22 separates and holds the seedling and is about to plant the plant at the time of planting the seedling, it is necessary to rotate the plant in order to prevent the planting posture from being disturbed by the strong wind and disturbing the planting posture. At least the left and right side surfaces of the case 21 are covered to prevent wind from hitting at the time of planting. That is, a windproof hood 65 for covering the left and right sides and the back side of the rotating case 21 with a transparent resin plate is provided on the transmission case on which the rotating case 21 is supported. Constitute a notch 66 that can pass through. It is to be noted that a flexible member such as rubber which is in contact with the paddy rice topsoil surface may be attached to a lower end portion of the hood 65. It is desirable to detect the intensity of the wind with an anemometer and to increase the seedling depth on a windy day. That is, as in the embodiment shown in FIG. 4, the wind intensity is detected by the anemometer 63 and a signal is sent to the controller when the wind intensity becomes equal to or higher than a predetermined reference, and the electric cylinder 64 is driven by this signal. The floats 27 and 28 are moved upward to control the depth of seedling planting. The anemometer is not limited to the embodiment, but may be a wind pressure detector. The simplified seat hood 62 shown in FIGS. 5 and 6 protects the operator from rain and wind.
The hood is configured to be rotatable together with the cockpit 10 so that operations such as seedling supply can be performed easily. More specifically, a seat support frame 55 fixed to the vehicle body 4 is provided on the upper surface of the motor under the cover bulging portion 9 that covers the motor 8, and the frame 55 is fixed to the bottom surface of the cockpit 10. Support shaft 5
6 is rotatably received by a metal 57 fixed to the support frame 55. The front hood frame 59a and the ceiling are integrally formed so that the front side of the seat is opened to the seat frame 58 fixed to the lower portion of the cockpit 10, and then the hood frame 59b is erected. The transparent resin body 6 is fixed around the frame.
Stretch 0 except for the front side. In addition, windows 61 that can be opened and closed are provided on the left and right side surfaces. The transparent resin body 60 may be a plywood or a film. The cockpit 10 can be operated between a free rotation state and a rotation locked state that can be fixed during driving. Also, the control lever etc.
It is integrated with this seat, and is configured in an operation form by wire interlocking. As described above, when the seat hood 62 is integrally mounted on the rotatable cockpit 10 and the front side thereof is opened, compared with a complex and expensive, full-scale vehicle such as a cabin, the seat hood 62 can be provided. very, and the weight becomes inexpensive, like riding type rice planting machine, often Ru <br/> it be a working machine requiring seedlings supplementation rotates the cockpit 10 laterally or backwards The operation can be easily performed, which is extremely convenient. The embodiment shown in FIGS. 7 and 8 will be described.
In this embodiment, the intermediate portion of the upper link rod 15a is connected to the link 67.
And a pitching mechanism for varying the inclination angle of the rice transplanter 19 on the working machine side in the front-rear direction. The hydraulic cylinder device 68 is configured to be operated by an electromagnetic switching valve 69. This switching control is performed by a signal from the front-rear inclination sensor 70 that detects the front-rear inclination. When the rice transplanter 19 is inclined out of a certain range, the front-rear posture is returned to the initial appropriate inclination state. ing. In order to prevent the rice transplanter 19 from tilting largely to the left and right, a sensor 71 for detecting a pendulum-type tilt is provided in the embodiment, and a switching valve switched by a signal from the sensor 71 is provided. 72, the piston 73 of the hydraulic cylinder 73 attached to the link frame 15c
The rice transplanter 19, which is rotatable left and right in FIG. In the above configuration, the hydraulic control circuit is a priority circuit as shown in FIG. That is, the control for correcting the inclination of the rice transplanter in the front-rear direction is the first priority, the rice transplanter 19 is vertically controlled, and finally, the left and right inclination is controlled. That is, this is to prevent a disadvantage that the lifting and lowering control of the work implement is erroneously controlled unless the pitching control is in an appropriate state.

[Brief description of the drawings] FIG. 1 is a side view FIG. 2 is a side sectional view of a main part. FIG. 3 is a rear view of a main part of FIG. 2; FIG. 4 is a control circuit diagram of a main part. FIG. 5 is a side sectional view of another example. FIG. 6 is a front sectional view of a main part of FIG. 5; FIG. 7 is a partially sectional side view of another example. 8 is a hydraulic circuit diagram in FIG. [Explanation of symbols] 2 Drive wheels (drive front wheels) 3 drive wheel (drive rear wheel) 4 Body 20 Planting transmission case 21 Rotating case 22 Planting equipment 27 Center Float 28 Side float 30 Arm 63 Anemometer 64 Electric cylinder 65 Wind Avoidance (Wind Hood)

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hitoshi Yamazaki 1 Eki Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department, Inc. (72) Inventor Masaru Nomura 1 Toya-machi, Hachikura, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hideyuki Kusamoto 1 Engineering Department, Yasekura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. References Japanese Utility Model 1-167820 (JP, U) Japanese Utility Model 51-151023 (JP, U) Japanese Utility Model 51-115121 (JP, U) Japanese Utility Model 50-139618 (J , U) (58) investigated the field (Int.Cl. ^7, DB name) A01C 11/02

Claims (1)

(1) A vehicle body (4) which is advanced by driving wheels (2) and (3) is provided, and grounding bodies (27) and (28) are moved up and down relative to a planting transmission case (20) near a planting position. In a working machine which is provided to be supported by a rotating arm 30 and in which seedlings are planted by a planting device 22 mounted on a rotating case 21 which is supported by the planting transmission case 20, the planting device 22 is provided outside the planting device 22. A wind shield 65 is attached to the planting transmission case 20 and provided.
When it is detected by the anemometer 63 that the wind is strong, the arm 3
1. A working machine comprising a control means for rotating an upper surface of a ground contact body 27 and 28 by rotating the upper surface of a work piece 0 upward.