JP2890728B2 - Straw conveyor in threshing machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a straw conveying device in a threshing machine, and is particularly applicable to a combine or a harvester.

(Prior art)

This type of conventional straw conveying device is disclosed in, for example,
According to the configuration described in Japanese Patent No. 7236, when the lifting force of the transport straw reaches a certain level or more, the drainage chain is lifted upward to open the space between the guide rod.

This configuration is a kind of safety device, and the timing of opening depends on the strength of the catcher. If it is too strong, it will not function as a safety device, and if it is too weak, normal threshing work cannot be continued.

[Problems to be solved by the invention]

In the straw conveying device of this kind of threshing machine, if the continuous operation is continued, the straw is likely to be clogged and labor is often taken to remove it.

When the lifting force of the transport straw is increased as in the conventional type described above, the drainage chain is opened upward, so that it is safe. However, since it is opened immediately, there is a problem that continuous work cannot be performed.

Therefore, the present invention uses a frame that is framed to reinforce the fuselage and supports the straw conveying device, so that the whole becomes strong and can perform reliable work.
It is intended to create something that can be easily maintained.

[Means for solving the problem]

The present invention employs the following technical means to solve the above-mentioned problems. That is, on the outside of the threshing section of the threshing room 1, the left and right reinforcing frames 3, 3 ′ each having a base attached to the rear side plate 2 of the threshing room 1 and extending in the direction of the straw.
, And the leading end portions of the reinforcing frames 3 and 3 ′ are connected to the body 4, respectively.
Between 3 ', there is provided a supporting frame 5 whose base is attached to a reinforcing frame 3' located on the tip side of the straw so as to be freely pivotable up and down, and whose tip is freely engaged and disengaged with the reinforcing frame 3 on the stock side. The supporting frame 5 is a straw conveying device in a threshing machine configured to support the straw chain 6.

[Action / Effect]

First, the threshing operation is started while the threshing machine 7 is started and the rotating parts of the machine are driven.

The grain culm is transported by the transport device 8 while the threshing room 1
And threshed. Then, the straw is sandwiched between the straw chain 6 and the guide rod 9, conveyed, and supplied to the rear cutter.

During such work, the entire threshing machine 7, in particular,
The straw portion is composed of left and right reinforcement frames 3, 3 'and a support frame 5 connecting these left and right reinforcement frames 3, 3'.
The work can be done safely and reliably because the framework is firmly configured.

In this case, the waste straw chain 6 is attached to the support frame 5, and since the support frame 5 is attached to the reinforcing frames 3, 3 'on both the left and right sides, the amount of transported straw is increased and the pressure is increased. There is a feature that the straw can be transported reliably without escaping.

Next, in the maintenance work of the straw chain 6, the lock device 11 'is removed, and the support frame 5 is rotated upward with the one reinforcement frame 3' side as a fulcrum to open the space between the support rod 5 and the guide rod 9.

In this manner, the straw chain 6 can easily remove the entangled straw waste when the space between the straw chain 6 and the guide rod 11 is opened, and can easily perform maintenance.

As described above, the present invention provides left and right reinforcing frames 3 and 3 ′, which are attached to the rear side plate 2 of the threshing chamber 1 and extend in the direction of the straw, outside the threshing section of the threshing chamber 1. The front end portions of the reinforcing frames 3, 3 'are connected to the body 4 respectively, and the left and right reinforcing frames 3, 3' are provided.
A support frame 5 is provided between which the base portion is vertically rotatably attached to a reinforcing frame 3 'located on the tip side of the straw and the tip portion is removably locked to the reinforcing frame 3 on the stock side. Since the frame 5 is configured to support the straw chain 6, the rear side plate of the threshing chamber, which is weakened with the configuration of the straw passage, can be strengthened by the frame configuration of each frame.

Moreover, the straw conveying device can rotate the straw chain upward by using the above-described reinforcing frame to open the space between the straw chain and the guide rod. Maintenance can be performed very easily.

〔Example〕

The threshing machine 7 has a threshing chamber 1 around which a handling cylinder 12 is mounted, and a transport device 8 is provided outside the threshing chamber 1 to perform a threshing operation.

The straw part is formed on the straw side of the rear side plate 2 of the threshing room 1,
Threshing culms, that is, straw are discharged to the rear of the machine.

The reinforcing frames 3 and 3 'have their bases connected to the rear side plates 2 and 3'.
And extend in the direction of the straw, with the tip of the lower body 4
Attached to.

The support frame 5 is provided between the pair of left and right reinforcing frames 3 and 3 'so that the base is pivotally connected to the frame 3' located on the tip side of the straw, and the tip end is provided with a lock device 11 And can be detachably attached to the reinforcing frame 3 on the stock side.

The straw conveying device 13 includes a straw chain 6 and a guide rod 9. The straw chain 6 is attached to the support frame 5, and the guide rod 9 is attached to the lower body 4.

3 and 4, the supporting frame 5 in the embodiment shown in FIG.
Is composed of two arm rods 14 and 14 'and reinforcing frames 3, 3'
Are mounted on a mounting frame 15 connected diagonally so as to be freely rotatable up and down.

The drainage chain 6 is attached to the arm rods 14 and 14 ′ constituting the support frame 5, and is configured to be capable of locking and opening operations.

 Next, the operation will be described.

First, the cereal culm supplied to the threshing machine 7 is threshed in the threshing room 1 in the process of being nipped and transported sequentially by the transport device 8.

Then, the threshed waste is supplied to a rear cutter by a waste straw chain 6 and a guide rod 9 constituting the straw transporting device 13.

During such a continuous operation, the rear side plate 2 and the peripheral structure thereof include the reinforcing frame 3, 3 'and the supporting frame 5
Because it is reinforced firmly, you can work reliably without deviation.

Next, the case of performing maintenance will be described.
The drainage chain 6 first removes the lock device 11.

When the support frame 5 is opened upward using the pivotal connection with the reinforcing frame 3 ′ as a pivot, the straw chain 6 is opened.
Rise together, the distance between the guide rod 9 and the guide rod 9 increases, and maintenance can be performed very easily.

[Brief description of the drawings]

1 shows a plan view, FIG. 2 shows a side view, FIG. 3 shows a plan view of another embodiment, FIG. 4 shows a side view thereof, and FIG. Is a rear view showing the operation. DESCRIPTION OF SYMBOLS 1 ... threshing room, 2 ... rear side plate 3, 3 '... reinforcement frame, 4 ... body 5 ... support frame, 6 ... straw chain 7 ... threshing machine, 8 ... transport device 9 ... guide rod, 11 … Locking device 12… Handling cylinder, 13… Straw conveying device 14, 14 ′… Arm rod, 15… Mounting frame

Claims (1)

(57) [Claims] 1. At the outside of the threshing section of a threshing chamber 1, left and right reinforcing frames 3, 3 'are provided which are attached to a rear side plate 2 of the threshing chamber 1 and extend in the direction of the straw. 3 and 3 'are connected to the body 4 respectively, and the base is freely rotatable vertically between the left and right reinforcement frames 33' on the reinforcement frame 3 'located on the tip side of the straw. Frame provided in a threshing machine in which a supporting frame 5 is provided so as to be freely locked and disengaged with a reinforcing frame 3 on the stock side, and the supporting frame 5 supports a straw chain 6.