JPS5854898Y2 - Agricultural machine operating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a working machine for agricultural work such as a tractor or a Noriwa rice transplanter, which is equipped with four wheels and is steered by bending the middle part of the machine body. It is designed to allow smooth and reliable operations such as forward/backward switching or traveling speed change between these types of mid-folding aircraft bodies.

That is, if the machine is steered by bending the middle part of the machine, the turning radius of the machine is small and the machine can make small turns, so agricultural work such as plowing and rice planting can be carried out efficiently in every corner of a small field.

However, bending the midway part of the machine changes the distance between the two machines, so the movement of the operator's operation of a pedal or lever on one machine is transmitted to the other machine, and the distance between the two machines changes. It is extremely difficult to operate the operating parts such as the forward/backward switching clutch or transmission mechanism attached to the aircraft, and the operating part and its operating part must be provided only on one of the aircraft. The whole thing became unbalanced.

In the present invention, when mounting an operation transmission shaft extending in the longitudinal direction between the center-folding type aircraft bodies, the operation transmission shaft is positioned on the bending center of both aircraft bodies, and is configured to be freely foldable at that position. The above-mentioned problem is solved by remotely controlling the sliding movement parts of one machine body and the other machine body via this operation transmission shaft. To explain the example drawings when applied to a riding-type rice transplanter, 1 in the figure shows a body consisting of a front body 2 with 4 seats and a rear body 3, and the front and rear bodies 2 and 3 are hollow-shaped bodies. The missions 5 and 6 are each formed in a mission case and have a substantially symmetrical structure, while hollow bosses 7 and 8 are integrally formed at the rear end of the front fuselage 2 and the front end of the rear fuselage 3, The two bosses 7.8 are assembled vertically, and a single vertical shaft 9 is rotatably fitted into both the bosses 7.8 to connect the front and rear bodies 2, 3 so as to be horizontally bendable.

In this case, the bent portion is connected to the lower surface of the boss 8 and the reinforcing member 11 removably attached to the lower surface of the front fuselage 2 and the upper surface of the rear fuselage 3.
It is reinforced by fitting and engaging pins 12 and 13 that protrude from the upper surface of the shaft 9 concentrically with the vertical axis 9, respectively.

Axle cases 14 and 1 are installed on both left and right sides of the front and rear fuselages 2 and 3.
4.15.15 is attached, and at the tip of each axle case there are swing arms 16°16 and 1 that are rotatably attached to this.
Wheels 18, 18, 19, 19 are attached through 7.17, and each swing arm has a spring mechanism 20° 20, 2
1 in the downward rotational direction, and the front wheels 18.18
The distance between the ruts between the rear wheels 19 and 19 is set to a ratio of 4 between the front wheels 18 and 18 and 2 between the rear wheels 19 and 19 to the seedling planting row spacing of 1.

The engine 22 attached to the rear end of the rear fuselage 3 has an output shaft 23 connected to a human power shaft 25 of the rear transmission 6 via a multi-plate clutch 24, and the output shaft 26 of the transmission 6 is connected to the vertical shaft 9 and the boss. The vertical shaft 9 interlocks the bevel gears 3Q and 31 with the input shaft 29 of the front transmission 5 within the boss 7, and the output shaft 32 of the front transmission 5 interlocks with the input shaft 29 of the front transmission 5 within the boss 7. PT protruding from the front of body 2
It is connected to the C-shaft 33 via a clutch mechanism 34 for stopping the planting claw upper part.

35 is a 6-row seedling planting device located in front of the front body 2, and the seedling planting device 35 includes a mission case 36, planting claws 37 and 37 attached to both sides of its tip, and seedlings attached to the top surface of the mission case 36. It is composed of a plurality of seedling planting unit mechanisms 40 arranged in parallel, each consisting of a platform 38 and a float 39 attached to the lower surface of the case. It is configured to move up and down from the front body 2 side by rotating the lift arm 43 that engages with the lower link 41, while its input shaft 44 is connected to the Power is transmitted via a telescoping shaft 45 that connects the TPO shaft 33.

A bundle 47 is provided on the upper surface of the front fuselage 2 via a bundle stand 46, and a steering mechanism 48 of the bundle 47 and a sprocket attached to the upper surface of the reinforcing member 11 of the rear fuselage 3 concentrically with the vertical shaft 9 are provided. 49, and by rotating the bundle 47, the aircraft 2, 3
The steering wheel is configured to be steered by adjusting the direction of new bending and the degree of bending.

The mission 6 in the rear fuselage 3 consists of an input shaft 25, an output shaft 26, and a running shaft 51 and an intermediate shaft 52 pivotally supported between them. 25 is equipped with an idler gear 55 that meshes with a clutch 54 with a gear 53 that is slidably spline-engaged with the drive shaft 51, and a gear 56 that is always engaged with the idler gear 55 and a clutch 54. A speed change gear 57 that meshes with the gear 53 in a sliding manner and a gear 59 that meshes with the fitted gear 58 on the output shaft 26 are rotatably provided as one body. A gear 60 that constantly meshes with the gear 56 of the shaft 51 and a reversing gear 61 that meshes with the gear 53 of the clutch 54 are rotatably provided in a three-piece integral structure, and these constitute a main transmission mechanism 62 for both forward and reverse switching. ing.

Further, two gears 63 and 64 are fitted to the running shaft 51 by spline engagement, and this running shaft 51 is connected to an axle 65, 65 in an axle case 15, 15 attached to both sides of the rear fuselage 3, and a differential lock mechanism 66. The running shaft 51 is mounted on the output shaft 26, which transmits power through a differential gear mechanism 67, and transmits power from both axles 65.65 to the rear wheels 19.19 through a chino 68 of the swing arm 17.17. Gears 69 and 70 that alternately mesh with the upper gears 63 and 64 are integrally and slidably provided in spline engagement to constitute a rear sub-transmission mechanism 71.

On the other hand, the mission 5 in the front body 2 consists of an input shaft 29, an output shaft 32, and a running shaft 72 pivotally supported between them, substantially similar to the rear mission 6. The input shaft 29 is arranged symmetrically on the left and right.
At the top is a spring-loaded clutch 7 that is slidably engaged with a spline.
A pair of gears 74 and 75 and a clutch 73 are provided with an idler gear 76 in which the clutch 73 is always engaged.
Gears 77 and 78 on which gears 74 and 75 on 9 mesh alternately
The axle cases 14 and 14 are fitted to form the front sub-transmission mechanism 79, while the running shaft 72 is attached to the axle cases 14 and 14 attached to both sides of the front body 2.
The power is transmitted to the inner axle 80.80 via a differential gear mechanism 82 with a tension lock mechanism 81, and both axles 80.80 are connected to the swing case 16. ,, front wheel 1B via the cheno 83 in 16.

Power is transmitted to 18.

Further, the traveling shaft 72 and the output shaft 32 are provided with a transmission mechanism 85 that changes the speed of the rotation of the input shaft 29 and transmits it to the output shaft 32 by switching a transmission lever 84 protruding from the outside of the aircraft body 2. .

In FIG. 3, reference numeral 86 is a shifter for sliding the clutch 54 with a gear 53, and the shifter 86 is connected to the rear fuselage 3.
A tumbler 89 attached to the main gear shift operation transmission shaft 88 which is supported in the upper case 87 so as to extend in the longitudinal direction of the fuselage 3.
The clutch 54 is engaged with the spiral groove 90 on the lower surface, and the rotation of the operation transmission shaft 88 causes the clutch 54 to be transmitted to the rear fuselage 3 by transmitting the operator's operation on the front fuselage 2 to the rear fuselage 3. The operating shafts 99 and 100 and the operation transmission shafts 8B and 95 for switching the main transmission mechanism 62 and the auxiliary transmission mechanism 71 have their axes aligned with the center line C of the vertical axis 9, which is the bending point of both bodies 2 and 3.
- C so as to extend in the longitudinal direction of the fuselage, and the operation transmission shafts 88 and 95 in one fuselage are connected to the operating shafts 99 and 100 in the other fuselage.
Since they are connected so that they can be bent at universal joints 108 and 109 on the bending center line C-C of 3, both operation transmission shafts are also bent around the 9 points of the vertical axis in the same way as both bodies 2 and 3. As a result, each operation shaft 99,100 and operation transmission shaft 88,95 do not change in the axial direction at all when the fuselage bodies 2 and 3 are bent. Moreover, each operating shaft 99.100 and the operating transmission shaft 88.95 can be rotated freely in any bent state of the fuselage. The sliding movement parts such as the sliding clutch 54 or the sliding gear pair 69, 70 in the transmission mechanism 62 or 71 of the aircraft body 3 can be operated reliably and at will.

As described above, the present invention allows the sliding movement parts such as the transmission mechanism of one body to be operated from the top of the other body, which is folded into one body. There is no need to centrally provide the operating section, and the operating section and operating section can be placed separately on both bodies, improving the balance of the aircraft. In the other machine, a mechanism that converts the rotation of the operation transmission shaft into sliding motion of the operating section is provided between the operation transmission shaft and the operating section, so that the operating section such as the transmission mechanism does not slide. It has an effect that can be applied even if it is a motion type.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a riding rice transplanter, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a vertical front view of the machine body, and Fig. 4 is Fig. 3. , FIG. 5 is an enlarged sectional view taken along v-V of FIG. 3, FIG. 6 is an enlarged sectional view taken along ■■-vI of FIG. 3, and FIG. VII-V
II enlarged sectional view, Fig. 8 is Fig. 7-VIII-VII
FIG. 9 is a sectional view taken along line IX-IX in FIG. 3 (7). 1... fuselage, 2... front fuselage, 3...
... Rear fuselage, 18, 18 ... Front wheel, 19
．． 19... Rear wheel, 99.100... Operation shaft, 8B, 95... Operation transmission shaft, 98.1
01.107...Operation lever, 54...
・Sliding motion clutch, 69.70...Sliding motion gear.

Claims (1)

[Scope of utility model registration request] In an agricultural machine with four wheels that is bent in the middle for steering, the operator's operation on one of the machines is controlled by a transmission mechanism in the other machine by rotation of an operation transmission shaft. The operation transmission shaft is disposed so as to extend in the longitudinal direction of the aircraft body through the bending center point of both aircraft bodies, and the operation transmission shaft has a A universal joint is provided at a position on the bending center line, and a universal joint is provided between the sliding movement part such as a transmission mechanism in the other body and the operation transmission shaft, and converts the rotation of the operation transmission shaft into sliding movement of the operation part. An operating device for an agricultural machine comprising a mechanism as described above.