JPH06908Y2 - Combine harvesting pretreatment device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a pre-cutting mechanism for cutting and raising shell culms with respect to the tip support case of the main frame extending along the longitudinal direction of the machine body. Supporting slidably in the lateral direction of the machine body, changing the relative positional relationship between the mowing pretreatment mechanism and the traveling machine body, and in the case of a swivel cutting form in which the uncut culm is located on the left side, the mowing pretreatment mechanism Is located on the left side to widen the space between the left steering device and the uncut culm to prevent the uncut culm from being pushed down by the mud pushing of the traveling device. In the case of taking the middle form with the position of, the pre-mowing treatment mechanism is brought close to the center of the traveling machine body,
The present invention relates to a combine harvesting pretreatment device having an advantage that a structure for suppressing a shell-falling phenomenon in a right traveling device can be taken.

[Conventional technology]

In this type of combine harvesting pretreatment device, conventionally, as a configuration in which the harvesting pretreatment mechanism is supported so as to be laterally slidable with respect to the main frame of the traveling machine body while maintaining a substantially parallel posture, for example, the actual cutting machine 53- As shown in Japanese Patent No. 48766, a rectangular sliding body is slidably engaged with a U-shaped guide groove, and the fixed side member is rotatably fixed in the axial direction with the sliding body. There is a configuration in which a screw type lateral feed drive shaft supported in this state is screwed, and the cutting pretreatment mechanism is laterally slid by the rotation of the drive shaft.

[Problems to be solved by the device]

The above-mentioned conventional structure is a structure for the cutting pretreatment mechanism to support laterally slidable without changing the relative vertical posture with respect to the traveling machine body. If the sliding action force is biased to the sliding guide action part, smooth sliding guide may be hindered due to slight wear etc. generated in the sliding part during short-term use. There was a defect that the rectangular sliding guide surface was liable to be broken during sliding movement, and there was room for improvement.

An object of the present invention is to provide a combine harvesting pretreatment device capable of smoothly performing a lateral sliding operation.

[Means for Solving the Problems]

According to the characteristic configuration of the present invention, in the combine harvesting pretreatment device described at the beginning, the harvesting pretreatment mechanism is provided with a pair of front and rear sliding frames, and with respect to the tip support case via the sliding frames. An input shaft, which is slidably supported in the lateral direction of the machine body, and through which power is transmitted via a transmission shaft in the main frame, and a lateral feed drive shaft that is screwed and linked between the tip support case. And is configured to be laterally slidable by the rotation of the lateral feed drive shaft by the power from the input shaft, and further, the lateral feed drive shaft is provided at a substantially central position between the pair of sliding frames. The input shaft is arranged in parallel with the sliding frame, and the input shaft is arranged further in the rear side of the machine than the sliding frame located on the rear side of the machine and is arranged in parallel with the sliding frame. Yes, The operation and effect of which is as follows.

[Action]

The reaping pretreatment mechanism is supported by a pair of front and rear sliding frames so that it can slide laterally while maintaining a substantially parallel attitude to the machine body, and a transverse feed drive shaft is arranged approximately in the center between the sliding frames. Therefore, the lateral sliding action force between the lateral feed drive shaft and the female screw part screwed to the lateral feed drive shaft acts substantially evenly on each sliding frame, and there is little possibility that the sliding guide part will be twisted. It becomes a thing. Moreover, by disposing the input shaft to which power is transmitted further rearward than the rear side sliding frame, even if the transverse feed drive shaft is arranged substantially in the center between the sliding frames, The distance between the two sliding frames can be suppressed to be small.

[Effect of device]

Therefore, it is possible to provide a combine pre-mowing pretreatment device which can make the sliding support structure of the pre-mowing treatment mechanism compact by a rational arrangement structure, but which enables smooth lateral sliding operation with less slack. It was

〔Example〕

As shown in FIGS. 3 and 4, the combine is a weeding tool.
(1) A raising device that raises the planting culms sown by (1)
(2), Mowing device (3) for cutting after-raising husks, Packer (4) for focusing the cutting husks in the center of the cutting width, and transporting the focused husks toward the rear threshing device (5) A pre-mowing treatment device including a vertical transport device (6) and the like, and a driver's seat (7) disposed laterally of the vertical transport device (6).

The weeding tool (1), the raising device (2), the mowing device (3), the packer (4), etc. are collectively referred to as a mowing pretreatment mechanism (17), and the mowing pretreatment mechanism (17) The lateral sliding structure for the traveling machine body (9) will be described. As shown in FIG.
(9) A vertically oriented frame (10) is erected at the front end, and a horizontally oriented transmission case (11) is rotatably supported on the upper end of the vertically oriented frame (10) about its horizontal axis. The main frame (12) in the front-back direction of the fuselage is fixed to the outer peripheral surface of the lateral transmission case (11), and the transmission shaft (13) of the lateral transmission case (11) and the transmission shaft (14) of the main frame (12) are fixed. And the bevel gear mechanism (15) to connect the sideways transmission case (11)
The end input pulley (37) of (13) receives power from the engine (not shown) and transmits the power to the mainframe transmission shaft (14). A support case (16) is provided at the tip of the main frame (12), and a mowing pretreatment mechanism (17) is attached to the support case (16).

The mounting structure of the tip support case (16) will be described. First
As shown in Fig. 2 and Fig. 2, the sliding shaft [an example of the input shaft] (18) is positioned at the main frame (12) mounting part of the tip support case (16) along the lateral direction of the machine body. The bearing is supported slidably in the direction of the center (X), and the passive bevel gear (19) externally fitted and mounted on the hexagonal sliding shaft (18) and the main frame (12) And a drive bevel gear (20) attached to the tip of a transmission shaft (14) arranged in the gear shaft are interlocked and interlocked to form a transmission structure to the sliding shaft (18). The passive bevel gear (19) is externally fitted to the hexagonal intermediate portion of the sliding shaft (18) so as to be integrally rotatable, and is also rotatable only through the bearing (21) to the tip support case (16). It is supported and is configured to allow lateral sliding of the sliding shaft (18). A bevel gear transmission mechanism (22) for supplying power to the raising devices (2) and (2) is provided at the right end portion of the sliding shaft (18) protruding rightward from the support case (16). On the other hand, the left end of the sliding shaft (18) is free and
It is located within the cover (36) forming (36a).

On the front side of the sliding shaft (18), a pipe-type laterally-oriented first sliding frame (23) is pivotally supported so as to be able to laterally slide on the tip support case (16) via pushes (24), (24). At the same time, left and right support frames (25), (25) having left and right weeding tool support rods fixed to the left and right ends projecting from the tip support case (16) are connected and fixed. Further, a second sliding frame (26) is laid across the left and right support frames (25), (25) further forward than the first sliding frame (23), and the supporting case (16) is Holder with a substantially U-shaped cross section that extends further forward from the front end
(27) is inserted from the front opening side and is loosely fitted and supported.
It is configured to be able to slide laterally relative to (27).

A spiral shaft (28) having an endless reciprocal spiral groove formed in a state of being located substantially in the front-rear center between the first sliding frame (23) and the second sliding frame (an example of a lateral feed drive shaft) Is provided so as to span the tip support case (16) and the right support frame (25). The cutting support pretreatment mechanism (17) supported by the left and right support frames (25), (25) is attached to the tip support case.
A spiral shaft (28) forms a drive for sliding laterally with respect to (16). This spiral shaft (28) has a tip support case (1
While being pivotally supported on 6), an input pulley (29) is fixed to the other end, and the input pulley (29) and the sliding shaft (18) end output pulley (30) are connected to the belt (31). It is transmitted and receives power from the sliding shaft (18). Here, the spiral shaft (28) is not directly connected to the right support frame (25), but the belt
(31) It is connected via a transmission case (32) that has a transmission mechanism inside. Further, a tension pulley (33) acting on the belt (31) is swingably supported on a boss (32A) on the transmission case (32) side that pivotally supports the sliding shaft (18), It is possible to form a clutch of the above formula to connect and disconnect the power from the sliding shaft (18) to the spiral shaft (28).

Therefore, when the clutch is operated with the above configuration, the spiral shaft (28) is rotated in one direction, and the top member (34) mounted in the wall of the tip support case (16) and the spiral groove of the spiral shaft (28). Due to the fitting and engaging action of (1), it rotates and slides in the axial direction of itself. Then, it reversely slides at the end of the spiral groove. As a result, the pre-mowing treatment mechanism (17) is configured to be able to laterally slide with respect to the traveling machine body, and is set to a desired lateral sliding position by opening / closing the clutch.

In contrast to the configuration in which the cutting pretreatment mechanism (17) is slid sideways with respect to the traveling machine body (9), the vertical transfer device (6) is connected to the rod (35) with respect to the cutting pretreatment mechanism (17). ), The vertical conveyor (6) is pivotally supported at the rear fulcrum (a) so that it can swing to the left and right, and the two are interlocked to move from the mowing pretreatment mechanism (17) to the vertical conveyor (6). It is constructed so that the delivery of the carrier shells can be smoothly carried out.

[Another embodiment]

(A) As a device for laterally sliding the cutting pretreatment mechanism (17), a screw shaft may be installed instead of the spiral shaft (28), and the screw shaft may be driven by a forward / reverse rotation motor.

(B) The left end of the sliding shaft (18) may be supported by the left support frame (25).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1 is a sectional view showing a sliding drive structure of a harvesting pretreatment mechanism, and FIG. 2 is a sectional view taken along line II-II of FIG. 3 is an overall side view, and FIG. 4 is an overall plan view. (12) …… Main frame, (14) …… Transmission shaft, (16) …… Tip support case, (17) …… Mowing pretreatment mechanism, (18) …… Input shaft, (23), (26) …… Sliding frame, (28) …… Transverse drive shaft.

Claims (1)

[Scope of utility model registration request] 1. A pre-cutting mechanism (17) for cutting up raised culms
The main frame (1
A combine pre-mowing pretreatment device slidably supported in the lateral width direction of the body with respect to the tip support case (16) of 2), wherein the pre-mowing treatment mechanism (17) comprises a pair of front and rear sliding frames. (2
3), (26), through the sliding frame (23), (26),
An input shaft (18) that is slidably supported in the lateral width direction of the body with respect to the tip support case (16) and that transmits power via a transmission shaft (14) in the main frame (12). A lateral feed drive shaft (28) screwed together with the tip support case (16), and laterally driven by rotation of the lateral feed drive shaft (28) by power from the input shaft (18). Further, the transverse feed drive shaft (28) is configured to be slidable, and the transverse feed drive shaft (28) is disposed at a substantially central position between the pair of slide frames (23), (26). ), And the input shaft (18)
The combine harvesting pretreatment device is located further rearward of the body than the sliding frame (23) located on the rear side of the body and is arranged parallel to the sliding frame (23).