JPS605800Y2 - Reaping section in combine harvester - Google Patents

Description

[Detailed description of the invention] The present invention relates to a reaping section mounted on the front end of a combine harvester body, and in particular, it houses a transmission mechanism for transmitting power to a cutting blade device and serves as a support frame for the device. The horizontal conduction case is formed to be long in the horizontal direction, and the vertical conduction case is long in the vertical direction (back and forth direction) and slopes downward from the transmission case, which accommodates the reaping input shaft and is integrated with the reaping unit frame. This invention relates to an improvement in the reaping section of a combine, which is rotatably supported up and down at the front end of the combine harvester.

The purpose of the present invention is to prevent the reaping section of the combine constructed as described above from being able to move vertically (horizontal rolling) of the horizontal conduction case with respect to the vertical conduction case using conventional means, for example. As is known from Publication No. 53-20445, the lower end of the vertical conduction case, which is tilted downward toward the front, is designed to rotate vertically with respect to the vertical conduction case directly. The rotation axis in the front and back direction for rolling left and right is
The structure is aligned with the axis of the vertical conduction case, which is tilted downward toward the front, and is tilted diagonally with respect to the horizontal plane, and when both the left and right ends of the horizontal conduction case rotate up and down. In addition, since the left and right ends of the lateral conduction case move in the front and rear directions when viewed from above, the balance is disturbed when rolling from side to side, causing smooth vertical movement of the lateral conduction case. In addition to this, there is a problem in that the action of the weeding members and lifting devices that are supported in parallel on the left and right sides of the lateral conduction case becomes malfunctioning.

This invention aims to solve this problem,
A rolling part is installed between the lower end of the vertical conduction case, which is tilted downward toward the front, and the horizontal conduction case, and allows the horizontal conduction case to freely rotate around a longitudinal axis along a horizontal plane. It is characterized by the fact that it has been established.

Next, an example of implementation will be explained in detail according to the drawings.
In the figure, a is a machine that runs on left and right crawlers 1 (one is omitted in the drawing), b is a threshing section consisting of a self-threshing type threshing device mounted on the top side of the machine body a, and C is a threshing section. This is a reaping section that is located in front of the harvester and is mounted in front of the machine body a so that it can be raised and lowered freely, and these combine to form the combine harvester A.

The reaping section C has a cutting body 21 on its reaping section machine frame 20.
..., the lifting devices 22, 22, the cutting blade device 23, the raking devices 24, 24, the stock transfer device 25, etc. are installed, and further,
It is the same as the reaping section of a normal combine, but the reaping section machine frame 2 is attached to the body a of the combine A mentioned above. A transmission case D is formed into a cylindrical shape that serves as a pivot point when mounting the rack so that it can be raised and lowered, and stores the reaping input shaft 3 in the shaft rack. The main body part 20 of the machine frame is formed into a T-shape with the vertical conduction case E protruding downwardly inclining toward the main body part 20.
and a horizontally long horizontally conductive case G that is attached to the lower end of the vertically conductive case E of the machine frame main body 20 so as to roll left and right via a rolling portion F, which will be described later. Branch 21...
・And the raising device 22, 22 and the scraping device 24, 24
The cutting blade device 23 is supported by the case G using the horizontal conduction case G as a support machine frame through appropriate support members, and the stock transfer device 25 is connected to the reaping input shaft 3 of the main body part 20 of the machine frame. The input pulley 30 is mounted on the opposite end of the transmission case D housing the input pulley 30, and is supported via a transmission case H that is installed to rotate vertically around the transmission case D. .

Therefore, the rolling part F formed between the lower end of the vertical conduction case E and the horizontal conduction case G is located approximately at the center of the left and right sides of the case G on the rear surface side of the horizontal conduction case G, and extends rearward. In addition to being provided with a protruding shaft cylinder portion 5, the transverse conduction case G is provided with cutting portions C which are lowered to the operating position as shown in FIG. In a state in which the left and right sled bodies 6, 6 are in contact with the ground, an input shaft 7 in the front-rear direction along a horizontal plane parallel to the ground surface is provided so as to protrude into the shaft cylinder portion 5. A fitting part 8 that freely rotates with respect to the shaft cylinder part 5 about the axis center line of the input shaft 7 is provided at the lower end of the conduction case E, and the fitting part 8 is connected to the shaft cylinder part 5. By fitting into the rear end portion, the lateral conduction case G is configured to freely rotate around a longitudinal axis (input shaft 7) along a horizontal plane and roll from side to side. It is.

Further, as shown in FIG. 3, power is transmitted to the input shaft 7 of the transmission mechanism provided in the horizontal transmission case G by a bevel gear 70 provided at the rear end of the input shaft 7 and the vertical transmission case G. By meshing with the bevel gear 32 provided at the lower end of the transmission shaft 31 housed in E and tilted with respect to a horizontal surface, even if the lateral transmission case G rolls left and right due to the rolling part F, the input shaft remains constant. 7, rotational power is transmitted from the reaping input shaft 3 via the aforementioned transmission shaft 31.

The transmission between the input shaft 7 protruding from the conduction case G and the oblique transmission shaft 31 is as shown in FIG.
It may be designed as appropriate, such as by connecting the input shaft 7 and the input shaft 7 via the universal joint 9.

Note that the starting end 25a of the stock transfer device 25 is located near the upper part of the aforementioned rolling F, which is the center of horizontal swing of the lateral conduction case G, as shown by the chain line in FIG. .

Next, to explain the function and effect, as mentioned above, the reaping section of the combine harvester according to the present invention has a horizontal conduction conduction mechanism attached to the lower end of the longitudinal conduction case E, which is the main body of the reaping section machine frame 20, so as to be able to swing from side to side. When supporting the case G, a rolling motion is provided between the lower end of the vertical conduction case E and the horizontal conduction case G to allow the horizontal conduction case G to freely rotate around a horizontal longitudinal axis (input shaft 7). Since the section F is installed and the lateral conduction case G is supported via the rolling section F, the lateral conduction case G is rotated (rolling) about a horizontal axis of rotation along the front-rear direction. Therefore, when rolling the lateral conduction case G, the left and right sides of the rotational axis do not move back and forth, and the rolling is performed without disturbing the balance, so that the left and right sides of the lateral conduction case G The lateral conduction case G can swing smoothly, and can effectively prevent the left and right ends of the lateral conduction case G from moving back and forth during the oscillation.
Sewing body 21..., scraping device 24...
, the lifting device 22, . . . when supported, their actions are made stable.

[Brief explanation of the drawing]

Fig. 1 is a side view of a combine harvester in which the present invention can be implemented, Fig. 2 is a partially cutaway plan view of the main parts of the same, Fig. 3 is a longitudinal cross-sectional side view of the main parts of the above, and Fig. 4 is another implementation. It is a vertical side view of the main part of an example. Explanation of drawing symbols, A... Combine harvester, a...
... Machine body, b ... Threshing section, C ... Reaping section, 2 ... Reaping machine frame, 20 ... Machine frame main body, 21 ... ... Grass cutting body, 22 ... Pulling device, 23 ... Cutting blade device, 24 ... Raking device, 25 ... Stock transfer device , D...
・Conduction case, E...Longitudinal conduction case, G...
...Horizontal conduction case, H...Conduction case, 3.
... Reaping input shaft, 31 ... Transmission shaft, 32
...Bevel gear, F...Rolling part, 5...Shaft cylinder part, 7...Input shaft, 70
...Bevel gear, 8...Mating part, 9.
...Universal joint.

Claims (1)

[Scope of utility model registration request] The lateral transmission case, which houses the transmission mechanism that transmits power to the cutting blade device and is formed long in the lateral direction to serve as a support frame for the device, faces forward and slopes downward from the transmission case that houses the reaping input shaft. At the reaping part of the combine, which is supported by the lower end of the vertical conduction case protruding from the bottom so as to be able to swing from side to side, the horizontal conduction case is placed horizontally back and forth between the lower end of the vertical conduction case and the horizontal conduction case. A reaping section for a combine harvester, characterized in that a rolling section is provided that can freely rotate around an axis in a direction, and a transverse conduction case is supported via the rolling section.