JP2508787B2 - Riding type farm work machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a riding-type agricultural work machine in which a farming machine is mounted on a rear portion of a riding-type traveling vehicle body so as to be able to roll freely via an elevating link mechanism.

[Prior Art and Problems to be Solved by the Invention] As a conventional technology, an agricultural machine equipped with a transmission case containing a transmission is mounted on a lifting link mechanism at the rear of a riding type traveling vehicle in a freely rolling manner. In the riding-type agricultural work machine, a rolling shaft is provided on the front side of the transmission case, and the rolling shaft is rotatably connected to the lifting link mechanism.

In the above-mentioned conventional machine, most of the weight of the agricultural work machine is concentrated on the rolling shaft portion of the transmission case, and therefore reinforcement is required to increase the strength of that portion. This allows
There is a problem that the weight of the agricultural work machine becomes heavy.

[Means for solving the problem]

In order to solve the above problems, the present invention relates to a riding-type agricultural work machine in which an agricultural-working machine including a transmission case having a transmission installed therein is mounted on a lifting link mechanism at a rear portion of a riding-type traveling vehicle in a freely rolling manner. A mounting frame that is connected to the link mechanism in a freely rolling manner is provided, and the mounting frame is formed so as to extend downward from the connecting portion with the elevating link mechanism and then to extend rearward, and the transmission case is mounted on the mounting frame. It was a riding-type agricultural work machine characterized by having the agricultural work machine attached in this state.

[Operation and effect of the invention]

In the riding-type farm work machine of the present invention, the mounting frame on which the farm work machine is mounted is connected to the lifting link mechanism so that the farm work machine can be mounted on the riding-type traveling vehicle body so as to be liftable and rollable. Then, the mounting frame is formed so as to extend downward from the connecting portion with the elevating and lowering link mechanism and then to extend rearward, and the agricultural working machine can be mounted with the transmission case of the agricultural working machine mounted on the mounting frame. Therefore, the strength of the transmission case itself can be made smaller than in the conventional case, and the weight of the machine body can be reduced.

〔Example〕

A riding type rice transplanter according to an embodiment of the present invention will be described below.

The tractor body 1, which is a riding type vehicle body, has a four-wheel configuration having a front wheel 8 and a rear wheel 9, and the front wheel 8 is provided to be steerable by a steering handle 10 and an engine 12 under a rear seat 11 is used. Drive and drive. An elevating link mechanism 2 is provided in the rear portion of the vehicle body 1 in the form of a four-point link, and the hydraulic circuit controls the elevation of the vehicle body 1 by expanding and contracting a hydraulic cylinder 13. 14 is a power take-off shaft for transmitting the seedling planting device.

At the rear part of the elevating and lowering link mechanism 2, a rolling shaft 16 integral with the link 15 in the vertical direction is provided, and a rolling metal 17 is fixed to the front end of the mounting frame 3 made of pipe material. Is provided rotatably around the rolling shaft 16. The mounting frame 3 is curved in a U-shape on the side surface, and a supporting arm 18 extending to the left and right sides is provided at the rear end with respect to the rolling metal 17 provided at the front end, and an attachment device 7 is provided at the front end. The fertilizer application is detachably attached and supported.

The planting transmission case 6 is provided with a main transmission case portion 19 in which a main transmission device is housed in the center of the front portion, and a planting device for transmitting each seedling planting device 5 from the main transmission case portion 19 to the rear left and right sides. A planting case portion 20 having a transmission device installed therein is provided in a branched manner, and from the main transmission case portion 19, the seedling supply device 4 mainly consisting of a seedling tank is reciprocated left and right, and the seedlings are moved downward at each end of the movement. A feeding device for feeding is provided so as to transmit power. Further, at the rear end of the planting transmission case 20, a seedling planting device 5 for moving up and down to separate the seedlings supplied to the lower end of the seedling feeder 4 and planting it on the soil surface below is transmitted. To be installed. In the main transmission case portion 19, the mounting frame 3 is integrally mounted on the U-shaped front side portion and the bottom side portion by the mounting tools 21 and 22. twenty three
Is a float attached to the planted transmission case 6. Each of the floats 23 is mounted so that the front side can swing up and down, and the vertical movement of the float 23 controls the expansion and contraction of the hydraulic cylinder 13 to raise and lower the seedling planting device with respect to the vehicle body 1 for seedling planting. The device 5 is configured to control the depth of seedling planting to be constant.

The fertilizer applicator has a fertilizer tank for storing fertilizer in the upper part, and a feeding roll for feeding the fertilizer in the lower part. The fertilizer is guided to the vicinity of the planting position of each seedling planting device 5. Fertilizer pipes are provided to allow the water to flow down.
The transmission of the feeding roll of each fertilizer application may be provided so as to be transmitted by the transmission device in the planted transmission case portion 20 or the main transmission case portion 19.

It should be noted that the support arm 18 at the rear end of the mounting frame 3 may be provided with a step stand which can be a step at the time of supplying seedlings.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a partial plan view, and FIG. 3 is a partial plan sectional view. In the drawings, reference numeral 1 is a vehicle body, 2 is a lifting link mechanism, 3 is a mounting frame, 4 is a seedling supply device, 5 is a seedling planting device, 6 is a planting transmission case, and 7 is an accessory device.

Claims (1)

(57) [Claims] 1. A riding-type agricultural work machine in which an agricultural-working machine having a transmission case having a transmission installed therein is mounted on a lifting link mechanism at a rear portion of a riding-type traveling vehicle in a rolling manner, and the agricultural working machine is rollably connected to the lifting link mechanism. A mounting frame is provided, and the mounting frame is formed so as to extend downward from the connecting portion with the elevating link mechanism and then to extend rearward, and the agricultural work machine is mounted with the transmission case mounted on the mounting frame. A riding-type farm work machine characterized by.