JPH0144036Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a threshing machine that is equipped with a waste straw binding device in series with a threshing device and an auxiliary conveyance device that conveys waste straw from the threshing device to the binding device.

Conventionally, in order to drive a bundling device using the above-mentioned device, a transmission shaft is mounted horizontally in a state perpendicular to the direction of conveying the waste straw, and an input transmission wheel body housed in a bundling case is fitted onto the transmission shaft. At the same time, it was configured to transmit power from the threshing device to the transmission shaft. However, in order to adjust the binding position, the binding case must be slid against the transmission shaft, which requires a long and strong transmission shaft, which requires time and effort to manufacture and requires many parts. It was getting expensive.

In view of the above points, it is an object of the present invention to make effective use of the original structure to provide a compact and inexpensive transmission structure to the binding device.

In order to achieve the above object, the present invention provides the above-mentioned threshing machine, in which a plurality of the auxiliary conveyance devices are arranged in parallel in the culm direction of the conveyed waste straw, and a drive shaft that integrally drives the auxiliary conveyance devices is provided. A transmission wheel body is horizontally supported, is rotatably housed in a binding case, and is operatively connected to an input shaft of the binding device, and is fitted onto the drive shaft so as to be slidable and integrally rotatable in at least one direction. characterized by something.

In other words, in order to integrally drive the auxiliary conveyance devices installed in parallel, the drive shaft, which is inherently long and strong, is effectively used, and the drive shaft is equipped with a transmission wheel for input to the binding device. It is fitted to transmit the power of the binding device.

Therefore, it is possible to eliminate the need for a dedicated transmission shaft for transmitting power to the binding device, the transmission configuration to the transmission shaft, and the space for their installation, and the transmission configuration to the binding device can be made compact. With,
It has become possible to reduce both the number of parts and the manufacturing effort, making it cheaper.

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings.

A waste straw conveying device 2 is provided behind the threshing device 1 provided in the combine, and a pair of auxiliary conveying devices 3, 3 are provided in line with the removed straw conveying device 2 and lined up in the culm direction of the transported waste straw. A waste straw binding device 4 is connected to the auxiliary conveyance devices 3, 3, and a shredding device 5 is provided below the auxiliary conveyance devices 3, 3, respectively, and the waste straw after threshing is bundled into a predetermined amount and delivered to the field. It is configured to either be released or shredded and released into the field.

A drive shaft 7 that integrally drives the auxiliary conveying devices 3, 3 is horizontally supported across the left and right opposing walls 6, 6 which are connected in a state of protruding rearward of the threshing device 1,
It is configured to transmit power from the threshing device 1 to the drive shaft 7 via a forward/reverse switching mechanism 8.
In the normal rotation state, the waste straw from the waste straw conveying device 2 is conveyed and supplied to the bundling device 4, and on the other hand, in the reverse rotation state, the waste straw from the waste straw conveying device 2 is conveyed and guided to the shredding device 5. It is structured as follows.

The waste straw binding device 4 has an opposing case portion 9
A U-shaped binding case 9 when viewed from the front is provided to form a space S sufficient to collect a predetermined amount of waste straw between a and 9a, and a knot 10 is provided on the upper side of both opposing case portions 9a and 9a. , string supply section 11 on the lower side
It is configured by providing each.

Guide 1 horizontally suspended across the opposing walls 6, 6
2, the binding case 9 is slidably and fixedly supported in the left-right direction of the machine, and the input transmission wheel body 13 is rotatably installed inside the front end of the binding case 9;
The transmission wheel body 13 is slidably fitted onto the drive shaft 7 via a one-way clutch 14 in such a manner that transmission is transmitted to the binding device 4 only during forward rotation.

In the binding case 9, as shown in FIG. 2, the transmission wheel body 13 is rotatably provided, and a packer drive shaft serving as an input shaft to the binding device 4 is gear-transmitted to the transmission wheel body 13. 15, needle crankshaft 16, door 1 for sensing a predetermined amount of focusing
7 attached, the door shaft 18, the first power take-off shaft 19,
An intermediate shaft 20, a node drive shaft 21, and a second power take-off shaft 22 are mounted on the needle crankshaft 1.
6. Loosely fit the transmission sprocket 23 to the intermediate shaft 20 and the joint drive shaft 21, and
The sprockets 24, 24, which are integrally rotatably attached to the power take-off shafts 19, 22, and the transmission sprocket 23 are interlocked and connected via a chain, and the sprocket 2 is loosely fitted onto the needle crankshaft 16.
3, the gear-transmitted power from the packer drive shaft 15 is transmitted to the first and second power take-off shafts 19 and 22.

Further, a sprocket 26 is attached to the needle crankshaft 16 so as to be freely rotatable, and a sprocket 23 loosely fitted to the needle crankshaft 16 is interlocked and connected to the sprocket 26 via a one-turn clutch 27. The chain is transmitted to the joint drive shaft 21 through the sprocket 28 loosely fitted to the door shaft 18, and as the door shaft 18 rotates, the one-turn clutch 27 is engaged and operated, thereby driving the string supply section 11 and the joint 10. It is configured.

The first and second power take-off shafts 19 and 22 are
As shown in FIG. 3, each is composed of a cylindrical shaft with a spline formed on its inner circumferential surface, and the splined shaft is fitted into the case 9 from both the left and right sides of the case 9. It is configured to transmit power to various attachment devices.

A conveying device 2 that clamps and conveys the bundled waste straw bundles to the first power take-off shaft 19 for three-dimensional discharge.
9 are interlocked and connected.

A raking device 30 of a locking pawl erecting type, which is located above the auxiliary conveyance device 3 and which rakes waste straw into the binding device 4, is connected to the second power take-off shaft 22 in an interlocking manner.

The present invention is applicable not only to combines but also to various types of threshing machines such as harvesters.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing machine according to the present invention; FIG. 1 is a partially omitted overall side view of the combine, FIG. 2 is a partially cutaway plan view of the main parts, and FIG. 3 is an enlarged sectional view of the main parts. It is. 1... Threshing device, 3... Auxiliary conveyance device, 4...
Binding device, 7... Drive shaft, 9... Binding case, 1
3...Transmission wheel body, 15...Input shaft.

Claims (1)

[Scope of utility model registration request] This threshing machine is equipped with a waste straw binding device 4 connected to a threshing device 1 and an auxiliary conveyance device 3 for conveying the waste straw from the threshing device 1 to the binding device 4, the auxiliary conveyance device 3 being conveyed. A plurality of drive shafts 7 are arranged in parallel in the culm direction of the waste straw, and a drive shaft 7 that integrally drives the auxiliary conveyance device 3 is horizontally supported, and is rotatably housed in a binding case 9 and serves as an input shaft of the binding device 4. 15. A threshing machine characterized in that a transmission wheel body 13 interlocked with a transmission wheel body 15 is fitted on the drive shaft 7 so as to be slidable and integrally rotatable in at least one direction.