JPH0543642Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is used in threshing equipment installed in combine harvesters, harvesters, etc., in particular to fix straw cutting blades for shredding straw, etc. that are entangled in a rotating handling barrel. - Regarding the removal structure.

[Conventional technology]

An example of the mounting structure of the above-mentioned straw cutting blade is the Utility Model 61-
It is disclosed in Publication No. 89234. This structure has each straw cutting blade protrude into the handling chamber through an opening provided in the tool post serving as a fixed frame, and the back surface of the straw cutting blade is pressed and fixed by the upper cover of the handling chamber via a pressing member. .

[Problem that the invention attempts to solve]

With the above-mentioned configuration, when removing the straw cutting blades to perform cleaning, adjustment, etc. in the handling chamber, each of the plurality of straw cutting blades must be removed individually, which is a cumbersome task for the operator. At the same time, the work involves handling the straw cutting blade itself, which is dangerous work.

Therefore, research has begun on a structure in which the straw cutting blade is fixed to the tool rest and the tool rest is attached to and removed from the handling chamber.The present invention is designed to easily operate the tool rest with the straw cutting blade fixed in this way. , the purpose is to obtain a structure that can be attached and detached.

[Means for solving problems]

The feature of the present invention is that in the above-mentioned threshing device, a notch for locking is provided on one side of the front and rear side walls of the handling chamber and on one side of the turret to which the straw cutting blade is attached, and a pin is provided on the other side. With the pin inserted deep inside, rotate the tool rest around the axis passing through the front and rear notches.
The turret can be rotated freely between the operating position in which the straw cutting blade protrudes into the handling chamber and the retracted position in which the catch net placed below the turret can be taken out. The tool rest is characterized in that it is configured to be more detachable and that it is provided with a lock mechanism for fixing the tool rest in the working position.

[Effect]

In the upper feature structure, when the locking mechanism locks the tool rest in the working position, the straw cutting blade protrudes into the handling chamber, making it suitable for threshing, and when the locking mechanism is released, the tool rest is moved to the back of the notch. It can be switched to the retracted position by rotating around the horizontal axis. Since the catch net can be attached and detached in the retracted position, the turret has the function of a locking device for the catch net, and adjustment of the handling cylinder can be easily carried out in the retracted position.

Even when the turret is in the retracted position, the straw cutting blade remains inside the threshing device, so when removing the turret for reasons such as parts replacement or adjustment, simply pull out the pin from the notch. It can be easily taken out of the handling room.

[Effect of idea]

As a result, the structure is simple with a pivot structure between the notch and the pin, and it is easy to switch between the working position suitable for threshing and the retracting position suitable for attaching and removing the receiving net.In addition, the turret is equipped with a straw cutting blade. It can be easily attached and detached, improving operability and safety.

〔Example〕

Hereinafter, a threshing device that is an embodiment of the present invention will be described based on the drawings.

The entire threshing device is constructed as follows.
In other words, as shown in Fig. 6 and Fig. 1, the harvested grain culm, which has been conveyed in a horizontal position by the feed chain 1, is suspended horizontally so that it can be driven in the handling chamber 15 in the threshing device. The grain is threshed by the handling drum 3. Threshed paddy and relatively small straw waste leak through the receiving net 16 placed below the handling barrel 3, fall onto the grain pan 21 installed on the lower swinging sorting frame 17, and are shaken by the grain pan 21. The paddy is sent to the grain sieve 22 on the lower side while being sorted by specific gravity by the operation, and on the grain sieve 22, by the shaking operation and the air blowing action from the winnower 20, the paddy leaks and is collected in the first grain collection section 18. Then, the paddy with branches, etc. collected in the second material collection section 19 is thrown away by a thrower 10 that can be thrown away.
The grain is fed into a processing chamber 11 arranged in parallel with the handling chamber 15, and is threshed again by a processing cylinder 23.

Next, the structure of the receiving net 16 will be explained in detail.
As shown in the figure, a pair of arcuate front mesh frames 2a,
It has a structure in which crimp nets 4, 4 are stretched over a rear net frame 2b.

Next, the support structure for the receiving net 16 on the side of the handling chamber 15 will be described in detail. As shown in FIGS. Guides 7 and 8 forming the front and rear side walls 7 and 8 are provided inside the handling chamber 15. To assemble the receiving net 16, as shown in Figs. 1 and 4, first,
The front mesh frame 2a is placed on the guide parts 7, 8 and inserted into the engagement hole 13 of the front auxiliary frame 14, which is constructed across the feed chain 1 side ends of both guide parts 7, 8. The front pin 12 provided at the front end of the front net frame 2a is inserted to position the front portion of the front net frame 2a.

The rear positioning of the front mesh frame 2a is shown in Figures 1, 4, and 5.
As shown in the figure, the engaging part 5, which has a U-shape in side view and which engages and disengages from the insertion/extraction direction of the receiving net 16, is connected to the pin 9 protruding inwardly from both guide parts 7, 8 on the front receiver. It is provided at the rear end of the net frame 2a to suppress floating of the front receiving net frame 2a. After that, the rear net frame 2b is inserted, but as shown in FIG. Then, as shown in FIG. 1, the front end of the rear net frame 2b to be inserted is inserted under the protrusion 6a of the bow metal 6 to prevent the front part of the rear net frame 2b from floating up. The rear part of the rear net frame 2b is positioned by both guides 7 and 8 as shown in FIGS.
This is done by inserting a rear pin 25 provided laterally at the rear end of the rear net frame 2b into a notch 24 provided in the rear net frame 2b.

Next, the structure of the vicinity of the tool rest 27 for fixing the receiving net 16 will be described in detail. As shown in FIGS.
a is attached, and pins 28 protrude from both longitudinal ends of the tool rest 27. On the other hand, notches 29 are provided in the side walls 26a at both ends of the rear frame 26, which extends over both the guide parts 7 and 8, and the pins 28 of the tool rest 27 are engaged with the notches 29. By inserting the tool rest 27 into and out of the handling chamber 15, the tool rest 27 can be attached to and removed from the handling chamber 15, and can be rotated around the lateral axis of the notch 29.

The catch net 16 is fixed by directly pressing the rear end of the rear catch net frame 2b with the bottom of the tool post 27 when the tool rest 27 is in the working position. The turret 27 is fixed in the working position as shown in Figures 1, 2, and 3.
A lock pin as a lock mechanism 31 which is biased toward the projecting side by a spring 30 is attached to the tool rest 27 so as to be freely retractable and rotatable,
This is done by engaging the locking pin 31 into a locking hole 32 provided in the side wall 26a of 6.
Further, as shown in FIG. 3, the bracket 33 that supports the lock pin 31 is provided with a cam portion 33a, and the operating portion 31a of the lock pin 31 is provided with a cam portion 33a.
comes into contact with the cam 33a, and the cam portion 33a
and the cam action of the operating part 31a, the lock pin 3
By rotating the lock pin 31, the lock pin 31 can be moved in and out.

A pin 34 is provided on the upper edge of the tool rest 27, a removable handling chamber guide 35 is connected to the pin 34, and a handling chamber cover 36 is installed to be openable and closable.

[Another example]

In the above embodiment, the pin 28 was provided in the tool rest 27 and the notch 29 was provided on the handling chamber 15 side, but
The pin 28 may be provided on the handling chamber 15 side, and the notch 29 may be provided on the tool rest 27.

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the threshing device according to the present invention,
Figure 1 is a vertical front view of the handling chamber, Figure 2 is a diagram showing the state in which the tool rest is removed from the handling room, Figure 3 is a plan view of the tool rest, Figure 4 is an overall perspective view of the handling room, and Figure 4 is a perspective view of the handling room. FIG. 5 is an overall perspective view of the receiving net, and FIG. 6 is an overall side view of the threshing device. 7, 8... side wall of the handling room, 15... handling room, 16...
...Reception net, 27...Turret post, 27a...Straw cutting blade,
28...Pin, 29...Notch, 31...Lock mechanism.

Claims (1)

[Scope of utility model registration request] Side walls 7 and 8 before and after the handling chamber 15, and straw cutting blade 27
A locking notch 29 is provided on one side of the tool rest 27 to which a is attached, and a pin 28 is provided on the other, and with the pin 28 inserted deep into the notch 29, the tool rest 27 around the axis passing through the front and rear notches 29, the straw cutting blade 27a is inserted into the handling chamber 1.
5 and the working posture in which the tool rest 27 is projected.
The tool rest 27 is configured to be freely rotatable to a retracted position in which the catch net 16 disposed below can be taken out, and the tool rest 27 is configured to be freely attachable and detachable from the handling chamber 15. The threshing device is provided with a locking mechanism 31 for fixing the threshing device 27 in the working position.