JP4495128B2 - Transplanter - Google Patents

Description

  The present invention relates to an improvement of a transplanting machine in which a planting device is provided at the rear part of a traveling machine body and a ground working machine is provided in front of the planting device.

  Conventionally, as shown in FIG. 1, the transmission form to the rear wheel of a riding type transplanter equipped with a planting device for planting seedlings in the rear part of a traveling machine body 2 provided with front and rear wheels at the front and rear, A transmission case 7a having a transmission mechanism for input and conversion transmission, and a rear axle case 7 for transmitting an axle of the rear wheel 2b and a planting transmission shaft are arranged in a state of being separated from the front and rear of the traveling machine body 2, Are connected by a travel connecting shaft 7b.

  In addition, as an example of a transplanting machine in which a ground working machine is arranged in front of the transplanting apparatus of the transplanting machine as described above, a simultaneous planting type rice transplanter that performs planting work at the same time as the field cutting is known. It has been.

  However, when constructing a rice transplanter with a ground working machine, it is difficult to construct a transmission branch structure without making a significant structural change based on the transmission mechanism configuration to the rear wheel as described above. There's a problem.

The transplanter according to the present invention has been made in order to solve the problems of the above-mentioned conventional devices, and is provided with an engine (3) on a traveling machine body (2) having a front wheel (2a) and a rear wheel (2b). And a transmission case (7a) equipped with a transmission mechanism for inputting and transmitting the power of the engine (3) is provided, and a rear axle case (from the transmission mechanism in the transmission case (7a) via a travel connecting shaft (7b) ( 7) Drives the rear wheel (2b) supported by the vehicle, and a planting device (4) is provided at the rear part of the traveling machine body (2) so as to be movable up and down, so that the planting transmission shaft (4a ) Via the input shaft ( 7b) connected to the traveling connecting shaft (7b) in the transplanting machine having the ground working machine (6) provided in front of the planting device (4). 80) and input from the input shaft (80) Power axle in the rear axle casing (7) to (70), and ground working machine transfer case that decorated a transmission mechanism for distributing the power to (6) (8), mounted in front of the rear axle case (7), A connecting shaft (90) projecting forward from the rear axle case (7) and inputting power into the rear axle case (7) and the input shaft (80) are connected outside the rear axle case .

The transplanter according to the present invention has a transmission case in which an engine (3) is mounted on a traveling machine body (2) having a front wheel (2a) and a rear wheel (2b), and a transmission mechanism for inputting power of the engine (3) is input. (7a) is provided to drive the rear wheel (2b) supported by the rear axle case (7) from the transmission mechanism in the transmission case (7a) via the travel connecting shaft (7b), and the traveling machine body (2 The planting device (4) is provided at the rear of the planter so as to be movable up and down, and the planting device (4) is driven from the traveling machine body (2) side via the planting transmission shaft (4a) to plant the planting device (4). In the transplanting machine provided with the ground working machine (6) in front of the input shaft (80) connected to the travel connecting shaft (7b) , and the power input from the input shaft (80) is transmitted to the rear axle case (7). Inner axle (70) and ground work Machine (6) transfer case (8) which is furnished a transmission mechanism for distributing the power to, mounted on the front of the rear axle case (7), the rear axle case (7) from protruding forward the rear axle case (7) in Since the connecting shaft (90) for inputting power to the input shaft (80) and the input shaft (80) are connected outside the rear axle case, the space portion formed in front of the rear axle case 7 can be used effectively. Transmission branching to the ground work machine 6 can be performed.

  Hereinafter, embodiments of the transplanter of the present invention will be described with reference to the drawings.

  Reference numeral 1 denotes a transplanter (rice transplanter) according to an embodiment of the present invention, in which an engine 3 is covered with a bonnet 3a and mounted on a front part of a traveling machine body 2 having a front wheel 2a and a rear wheel 2b. Is composed of a normal structure, scraping the seedlings placed on the seedling stand and planting them on the field, and the field scene which is an example of the ground work machine. The stock removal rotor 6 for leveling is attached to the traveling machine body 2 via an elevating mechanism (not shown), so that seedlings are planted simultaneously with the treatment as the machine body travels.

  The transmission structure of the transplanter 1 is such that a transmission case 7a having a transmission mechanism for converting the power of the engine 3 is input to the front of the abdomen of the traveling machine body 2 and the rear axle case 7 is driven to input while supporting the rear wheel 2b. And a transmission connecting shaft (PTO connecting shaft) 7b that is detachably provided between the two transmission mechanisms and a transmission shaft in a distribution case 8 described later.

With this configuration, the power input from the travel connecting shaft 7b is transmitted to the rear wheel 2b via the transmission mechanism in the rear axle case 7 to be driven.
In addition, the code | symbol 4a in a figure is a planting transmission shaft which transmits motive power to the planting apparatus 4. FIG.

Further, Dai掻rotor 6 so that is driven through the ground work connecting shaft 81a having a freely catch from ground working shaft 81 which protrudes from the distributor casing 8 at the rear. In addition, the blanket rotor 6 is integrally supported by the front arm of the planting device 4 so as to be vertically adjustable by the support arm 4b.

Next, the configuration of the distribution case 8 will be described with reference to FIGS. In this embodiment, the distribution case 8 can be stably attached along the abdomen of the airframe via an adapter case 9 fitted in an attachment hole formed in the front surface of the rear axle case 7.

That is, as shown in FIG. 2, the connecting shaft 90 is supported in a stable manner in both ends through the front and rear bearings 91 and 91a in the cylindrical hole of the adapter case 9, and the shaft cylindrical portion 8a of the distribution case 8 is supported. The bevel gear 71 provided on the axle 70 in the rear axle case 7 has a front end side detachably connected to an input shaft 80 on the distribution case 8 side via a joint 92. It is made to mesh with and transmit.

The front end of the cylinder hole of the adapter case 9 on the front surface of the rear axle case 7 is formed with an inrow portion 9a for fitting the end portion of the shaft cylinder portion 8a of the distribution case 8, and the other end is provided with an attachment hole 9c for the rear axle case 7. The distribution case 8 and the rear axle case 7 are positioned with high precision, and mounting pieces 95 and 96 projecting from both ends are attached to the distribution case 8 and the rear axle case 7, respectively. It is fastened with screws 97 so that it can be securely fixed.

Next, the configuration of the distribution case 8 will be described with reference to FIG. This projects the distribution case 8 supports an input shaft 80 by the cylindrical portion 8a which is provided, a speed change gear mechanism 85 further consisting of the speed change gear set which is speed change operation by shifter shaft 83, provided on the transmission shaft 82, Kura Tsu It provided a clutch mechanism 87 or the like which is a clutch operated by the switch lever 86 is configured to be able to perform freely transmission operation Dai掻rotor 6.

Then, the distribution case 8, the cylindrical portion 8a for supporting the input shaft 80 in a state fitted position on the adapter casing 9, the mounting bracket 88 to be bonded to the mounting piece 95 of the adapter case 9 (flange) Several projecting. By arbitrarily setting the length of the shaft cylinder portion 8a, the mounting bracket 88, and the length of the adapter case 9, the distribution case 8 can be freely and stably supported at an appropriate position in the abdomen of the airframe on the front side of the rear axle case 7. It is configured as follows.

  Further, the input shaft 80 projecting forward from the distribution case 8 and the output shaft 7e projecting rearward from the transmission case 7a (FIG. 1) are detachable via the travel connecting shaft 7b and the joints 7d and 7d. To be connected.

With such a configuration, the distribution case 8 can effectively utilize the space formed in front of the rear axle case 7 so as not to protrude downward and lower the ground height, and to the traveling machine body 2. The input shaft 80 can be installed together in a compact manner, transmitted from the input shaft 80 to the axle 71 via the joint 92 and the connecting shaft 90, and grounded from the input shaft 80 via the clutch mechanism 87 and the transmission gear mechanism 85. The shaving rotor 6 can be transmitted by the shaft 81, and the shaving simultaneous planting work can be performed satisfactorily.

  Since it comprised as mentioned above, by connecting the output shaft 7e which protrudes from the rear part of the transmission case 7a and the input shaft 80 which protrudes from the front part of the distribution case 8 via the driving | running | working connection shaft 7b, a planting-only type Without greatly changing the configuration of the transplanter, the transplanter 1 including the scraper rotor 6 that performs the ground work can be configured easily and efficiently.

In this case, the distribution case 8 is supported in a stable state while being accurately positioned by the adapter case 9. In addition, the adapter case 9 supports the connecting shaft 90 in a state of being supported on both sides in a stable manner, and the lubricating oil that is scraped and scattered in the rear axle case 7 during transmission is blocked by the oil seal 98, so that the movement of the lubricating oil is prevented. There is a feature that the prevented transmission can be performed well.

  In the case of configuring a transplanting machine that does not include a cutting rotor as the ground working machine 6, the distribution case 8 is removed, and a long traveling shaft (not shown) is attached to the rear axle case 7 via a bearing portion. Are directly connected to each other and transmitted to the axle 70.

3 is a side view showing a main part of the transplanter 1. FIG. It is a plane sectional view showing composition of a distribution case, an adapter case, and a rear axle case. It is a perspective view which shows the shape of an adapter case.

Explanation of symbols

1 Transplanter (rice transplanter)
2 traveling machine body 2a front wheel 2b rear wheel 3 engine 4 planting device 6 ground working machine (rotating rotor)
7 Rear axle case 7a Transmission case 7b Traveling connecting shaft 8 Distribution case 9 Adapter case

Claims (1)

An engine (3) is mounted on a traveling machine body (2) having a front wheel (2a) and a rear wheel (2b), and a transmission case (7a) is provided in which a transmission mechanism for transmitting the power of the engine (3) is provided, A rear wheel (2b) supported by the rear axle case (7) is driven from a transmission mechanism in the transmission case (7a) via a traveling connecting shaft (7b), and a planting device is installed at a rear portion of the traveling machine body (2). (4) is provided so that it can be raised and lowered, the planting device (4) is driven from the traveling machine body (2) side through the planting transmission shaft (4a), and a ground work machine ( 6), the input shaft (80) connected to the travel connecting shaft (7b) , and the power input from the input shaft (80) to the axle (70) in the rear axle case (7), And power distribution to the ground work machine (6) That the distribution case the transmission mechanism and interior (8), mounted in front of the rear axle case (7), said protruding from the rear axle case (7) in front connection shaft for inputting power to the rear axle case (7) in ( 90) and the input shaft (80) are connected outside the rear axle case .

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