JPH0538591Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a harvester in which a waste straw processing device that is driven by receiving power from the threshing device is disposed behind the feed chain of the threshing device.

[Conventional technology]

Generally, in the case of a harvester equipped with a waste straw processing device, the power for the waste straw processing device is extracted from the threshing device, and the grain culm bundles that are intermittently sent from the feed chain of the threshing device are processed by the waste straw processing device. I'm trying to process it. In order to prevent the waste straw processing device from being damaged due to clogging, it has conventionally been possible to include a power cutoff mechanism such as a shear pin in the transmission system that cuts off torque transmission exceeding a set value. However, since the threshing equipment continues to operate even after the waste straw processing equipment breaks down, the operator may feed more grain culm bundles to the threshing equipment without realizing it, leading to secondary and even bigger problems. There was a development. In addition, in order to prevent the above-mentioned trouble, it may be possible to stop the drive of the threshing device at the same time as the waste straw processing device becomes clogged, but in this way, the grain culm bundle being threshed will be separated from the handling drum and receiving net. The handling cylinder stops between
In other words, the threshing machine would stop under the load, making it impossible to drive it again.

The present invention has been developed in view of the above-mentioned circumstances, and its purpose is to prevent overloading of the threshing equipment by intermittent feeding of grain culm bundles, and also to prevent overloading of the threshing equipment by utilizing this structure. To provide a harvester capable of preventing the development of a major trouble by preventing the subsequent supply of grain bundles at the time of clogging.

[Means for solving problems]

The characteristic configuration of the present invention is that a power cutoff mechanism is provided in the transmission system to the waste straw processing device to cut off torque transmission exceeding a set value, and a power cutoff mechanism is provided to the inlet of the threshing device to regulate the continuous supply of grain culm bundles. A regulation device is provided, and the supply regulation device is configured to be driven by the power led from a location on the downstream side of the transmission from the power cutoff mechanism, and when the power cutoff mechanism is in operation, the supply regulation device prevents the grain culm bundle from being supplied. The functions and effects are as follows.

[Effect]

If the waste straw becomes clogged in the waste straw processing device, the overload will activate the power cutoff mechanism and the grain culm bundle supply regulation device will operate to prevent the grain culm bundle from being supplied to the feed chain. As a result, the threshing device can stop only the supply of grain culm bundles while driving.

[Effect of idea]

As a result, when the waste straw processing equipment becomes clogged, the supply of grain culm bundles is automatically blocked, and unlike in the past, the operator was unable to feed grain culm bundles without noticing that the waste straw processing equipment was clogged. It is possible to avoid the situation and prevent it from developing into a big trouble. Moreover, the threshing equipment does not stop under load, and therefore, to start the harvester operation, only the clogged part of the waste straw processing equipment needs to be inspected, and operational performance does not deteriorate. It is.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, the barvester is equipped with a threshing device 1 equipped with a feed chain 2 along the left and right direction of the machine body on a body frame 7 equipped with a pair of left and right crawler running devices 6, 6. At the same time, a waste straw processing device 3 for bundling the grain culm bundles threshed by the threshing device 1 is disposed on the conveying end side of the feed chain 2, and a waste straw processing device 3 for binding the grain culm bundles threshed by the threshing device 1 is provided, and a grain culm bundle is disposed on the grain culm supply port side of the threshing device 1. It is constructed by attaching a supply stand 8.

The feed chain 2 is configured to be driven by receiving power from the threshing device 1, and has a clamping rail 9 disposed substantially parallel to the bottom of the feed chain 2.
The grain culm bundle is held between the feed chain 2 and the grain culm bundle, and the grain culm bundle is intermittently supplied to the waste straw processing device 3 by driving the feed chain 2. On the grain culm supply port side of the feed chain 2, that is, at the entrance of the threshing device 1, a star foil 5 serving as a supply regulating device for regulating the continuous supply of grain culm bundles is installed around the transverse axis _P1 of the machine body. It is pivotally mounted to be rotatable in the direction of grain culm bundle conveyance. In other words,
A pair of adjacent blades 10, 10 of the star foil 5
A feeding space 11 that accommodates about one bundle of grain culms is formed between the clamping rail 9 and the feed space 11 in which grain culm bundles are intermittently fed one bundle at a time by rotation of the star wheel 5. It is configured to be supplied to chain 2.

The waste straw processing device 3 includes a packer (not shown) that scrapes the grain bundles sent from the feed chain 2 into the bundling space 12, a bundling string supply needle (not shown), and a bundling string supply needle (not shown). It consists of a door 15 that senses the collection of a predetermined amount of grain bundles in the space 12 by a change in collection pressure, a discharge arm 16 that discharges a large bundle of bundled waste straw, etc., and the drive of each of these members. is configured to be driven by receiving power from the threshing device 1.

That is, as shown in FIG.
The rotating shaft 18 of the No. 2 collected material conveying screw 17 installed in A transmission system to the waste straw processing device 3 is constructed by interlocking the telescopic shaft 20 with the drive shaft 21 of the waste straw processing device 3 through a bevel gear. As shown in FIG. 3, a shear pin 4 is interposed in the power transmission shaft 19 as a power cutoff mechanism, and when the waste straw processing device 3 is clogged and a torque exceeding a set value is applied, the shear pin 4 is inserted. By breaking, it is possible to cut off torque transmission. Further, one end of a bendable rotary cable 23 is introduced into a bevel case 22 provided at a connecting portion between the transmission shaft 19 and the telescopic shaft 20, and is interlocked with the transmission shaft 19 by a bevel gear. The other end of this rotating cable 23 is interlocked with the star wheel 5 by a bevel gear. Therefore, the star wheel 5 is normally rotated via the transmission system, and grain culm bundles can be supplied intermittently, and if the waste straw processing device 3 becomes clogged, the rotational drive of the rotating cable 23 is stopped. and grain culm bundle feed chain 2
supply will be cut off. Further, by changing the number of blades and the rotation speed of the star foil 5, the feeding speed of the grain culm bundle can be freely adjusted.

[Another example]

(B) As the waste straw processing device 3, although a waste straw binding device was explained in the above embodiment, a shredding device may be provided.

○B As the supply regulating device 5, the rotating cable 23
It may be constructed of a rocking plate or a protruding pin interlocked with the rotary cable 23, and the protruding pin protrudes from the inlet of the threshing device 1, or the rocking plate closes the inlet when the rotating cable 23 stops driving.

○C As the power cutoff mechanism 4, in addition to the shear pin, a torque limiter such as a jump clutch or a slip clutch may be used.

[Brief explanation of the drawing]

The drawings show an embodiment of the harvester according to the present invention; FIG. 1 is a front view of the harvester, FIG. 2 is a schematic plan view of the same, and FIG. 3 is a schematic diagram showing a transmission system. 1... Threshing device, 2... Feed chain, 3
...Waste straw processing device, 4...Power cutoff mechanism, 5...
...supply regulation device.

Claims (1)

[Scope of utility model registration request] This harvester is equipped with a waste straw processing device 3 which is driven by receiving power from the threshing device 1 behind the feed chain 2 of the threshing device 1, and is set as a transmission system to the waste straw processing device 3. In addition to intervening a power cutoff mechanism 4 that cuts off the above torque transmission,
A supply regulating device 5 for regulating the continuous supply of grain culm bundles is provided at the entrance of the threshing device 1, and the supply regulating device 5 is driven by the power led from the power cutoff mechanism 4 from a location on the downstream side of the transmission. The harvester is configured to prevent the grain culm bundle from being supplied by the supply regulating device 5 when the power cutoff mechanism 4 is in the operating state.