JPH089763A - Threshing equipment - Google Patents

Abstract

(57) [Summary] [Structure] The upper case 15 which hangs the handling cylinder 1 is swingably and openably supported with respect to the lower case 14 around a support axis P which is substantially parallel to the handling body axis. An arcuate receiving net is provided on the 14 side along the circumferential direction of the handling cylinder 1, and a driving torque is obtained from the handling barrel shaft 1a via the belt type transmission mechanism 17 to move the receiving net 2 in the circumferential direction of the handling barrel 1. Installed a receiving net forced vibration device for forced vibration,
The belt type transmission mechanism 17 is equipped with an automatic tension type tension clutch 22, and holding means 26 for holding the operating lever 24 of the tension clutch 22 in the clutch disengaged position is provided in the lower case 14. [Effect] It is possible to prevent wasteful consumption of power and is economically efficient.
Unnecessary vibration noise can be prevented, environment deterioration can be prevented, unnecessary vibration force can be prevented from acting on the structure around the net, and deterioration of the durability of the structure around the net can be prevented. A threshing device capable of being provided can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supports an upper case, on which a handling cylinder is mounted, swingably and openably with respect to a lower case around a support shaft substantially parallel to the axis of the handling cylinder. An arc-shaped receiving net is provided along the circumferential direction of the handling cylinder, and a driving rotational force is obtained from the handling barrel shaft via a belt type transmission mechanism to force the receiving net to vibrate in the circumferential direction of the handling cylinder. The present invention relates to a threshing device provided with a net forced vibration device.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned threshing device, the belt in the belt type transmission mechanism is kept tensioned and is driven from the drive pulley on the handling barrel shaft side to the driven pulley on the net-receiving forced vibration device side. The rotary force is always transmitted [for example, Japanese Utility Model Laid-Open No. 4-24426].

[0003]

The forced vibration of the receiving net is carried out in order to prevent clogging of the receiving net and increase the leakage rate of grain. Although it is particularly necessary for the crops containing it, for example, dry crops and the like have a good leakage rate from the receiving net, so that forced vibration is often unnecessary for these crops.

Under such a tendency, according to the above-mentioned conventional structure, the driving torque is always transmitted from the driving pulley on the side of the handle barrel to the driven pulley on the side of the net-receiving forced vibration device. Therefore, even when threshing a crop that does not require the above-mentioned forced net vibration, the forced net vibration device always drives and vibrates, and as a result, the conventional configuration consumes unnecessary power. Not only that, it was easy to generate unnecessary vibration noise of the receiving nets to deteriorate the environment, and further to give unnecessary vibrations to the structures around the receiving nets to easily reduce the durability of those structures.

An object of the present invention is to provide a threshing device which can prevent wasteful consumption of power and deterioration of the environment, and can prevent deterioration of durability of the structure around the receiving net due to vibration of the receiving net. .

[0006]

A threshing device according to the present invention is characterized in that a belt type transmission mechanism is equipped with an automatic tension type tension clutch, and an operation lever of the tension clutch is held at a clutch disengaged position. The holding means is provided in the lower case.

The holding means may be constructed by providing a cover for preventing straws from entering the belt type transmission mechanism with an engaging portion for the operating lever.

[0008]

In other words, because of the above-mentioned configuration, when threshing a crop containing a lot of water or a wet crop, the tension clutch is set to "clutch", and the net-receiving forced vibration is accompanied by the drive rotation of the handle shaft. By driving the device and vibrating the receiving net, clogging can be prevented and the grain leakage rate can be increased.

On the other hand, when threshing a crop having a high grain leakage rate such as a dry crop, the upper case is opened upward with respect to the lower case, and the tension clutch is set to "clutch disengagement". In this state, the operating lever of the tension clutch is held by the holding means in the lower case, the upper case is closed, and the handle shaft is driven and rotated. Even if the handle shaft is driven and rotated, the drive torque is not transmitted to the net-receiving forced vibration device, so that unnecessary power consumption can be prevented and unnecessary vibration noise can be prevented. It is possible to prevent unnecessary vibration force from acting.

Further, since the tension clutch and the holding means are provided in the case composed of the upper part and the lower part, the dead space is effectively used to save the accommodation space as compared with the case where it is provided outside the case. In addition, the structure can be simplified, and erroneous operation can be prevented.

In the case where the cover for preventing the intrusion of straws into the belt type transmission mechanism is provided with the engaging portion for the operating lever to constitute the holding means, the number of constituent members of the holding means can be reduced. At the same time, the structure can be simplified, and the production cost can be reduced.

[0012]

As a result, wasteful consumption of power can be prevented, which is economical, and unnecessary vibration noise can be prevented from being generated, which can prevent environmental deterioration and unnecessary vibration force in the structure around the receiving net. Can be prevented, so that the durability of the structure around the receiving net can be prevented from lowering, and moreover, the storage space can be saved and the structure can be simplified so that a compact structure can be made and erroneous operation can be prevented. It was possible to provide a threshing device with good workability.

Further, when the cover for preventing the intrusion of straws into the belt type transmission mechanism is provided with a retaining portion for the operating lever to constitute the holding means, the production cost can be reduced. Therefore, it is possible to provide a threshing device that is more economical.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 4 and 6 show a threshing device according to the present invention. This threshing device has a lower case 1 in which a swinging and sorting device 13 and the like, which sorts and sifts a leaked material while swinging it, is installed.
4, the upper case 15 on which the handling cylinder 1 is mounted is supported so as to be swingable and openable about a support axis P substantially parallel to the handling body axis, and the side of the handling port 16 of the upper case 15 is lifted. Therefore, the handling room 5 can be opened widely.

An arc-shaped receiving net 2 is provided on the lower case 14 side along the circumferential direction of the handling cylinder, and the receiving net 2 is forcibly vibrated along the circumferential direction of the handling barrel 1 to prevent clogging. I am doing it. The receiving net 2 itself is formed by integral molding of ultra-high molecular weight polyethylene having excellent wear resistance and water repellency, and as shown in FIG. 5, both side edges 2a thereof are provided on both sides of the receiving net supporting frame 3 on the machine side. It is supported by the guide rail 4 provided.

As shown in FIG. 4, a forced vibration device 6 for the receiving net 2 is provided at the upper part on the back side of the handling chamber 5. This vibrating device 6
Attaches an eccentric cam 8 to the rotary shaft 7, and pivotally mounts one end of a swing arm 9 whose one end is pivotally supported on the side wall of the handling chamber 5 to the outer ring 10 of the eccentric cam 8 so that the swing arm 9 has a free end. The engaging portion 11 is provided and configured. The engaging portion 11 engages with a roller 12 axially supported on the outer surface of the end of the receiving net 2, and transmits the vibration of the swinging arm 9 which moves up and down by the rotation of the eccentric cam 8 to the receiving net 2.
The rotating shaft 7 is handled by a belt type transmission mechanism 17 to handle the cylinder 1.
It is configured to be transmitted from.

As shown in FIGS. 2 and 3 (a), the belt 18 in the belt type transmission mechanism 17 is provided on the drive pulley 19 on the side of the handle shaft 1a and the driven pulley 20 on the side of the net-receiving forced vibration device 6. , Gently winding the drive torque so that it cannot be transmitted,
The belt type transmission mechanism 17 is equipped with an automatic tension type tension clutch 22. More specifically, as shown in FIGS. 1, 2, and 3, the tension arm 23 includes a tension arm 29 having a belt pressing tension pulley 23 for applying a tension capable of transmitting a driving torque to the belt 18. The lower case 14 is attached to the lower outer surface of the belt 18 so that the lower case 14 can come into contact with and separate from the lower outer surface of the belt 18.
The lower case 14 is provided with a spring 25 that is swingably connected to the tension arm 29 and urges the tension pulley 23 integrally with the tension arm 29 against the belt 18 so that the driving torque can be transmitted (that is, the clutch 25 is urged). And a plate-like operation lever 2 for operating the on / off of the clutch, which is provided between the tension arm 29 and a portion of the tension arm 29 on the tip side of the pivot.
4 is integrally connected to the tension arm 29 to form the tension clutch 22. A locking projection 26 (an example of a holding means) for holding the operation lever 24 at the clutch disengagement position is provided on the cover 27 for preventing the straw from entering the belt type transmission mechanism 17 in the lower case 14. It is provided.

As shown in FIG. 3B, the operating lever 24
The front side surface of the locking projection 26 in a side view is formed as an inclined cam surface for guiding an operating lever that is closer to the belt type transmission mechanism 17 toward the lower end so that the locking projection 26 can be easily locked. I am doing it. That is, when the operation lever 24 is pushed down and swung against the biasing force of the spring 25 from above the locking projection 26 in the "clutch disengaged" state, the operation lever 24 moves toward the belt type transmission mechanism 17 side. While flexing, it slides down on the inclined cam surface, overcoming the locking projection 26, and at the same time, the flexure returns to the original position and the spring 25
The urging force of the contact abuts and locks the lower surface of the locking projection 26.

With the above-described structure, when threshing a crop containing a large amount of water or a wet crop, the tension clutch 22 is set to "clutched" and the net-receiving forced vibration is accompanied by the drive rotation of the handling barrel shaft 1a. By driving the device 6 and vibrating the receiving net 2, clogging of the receiving net 2 can be prevented and the leakage rate of the grain can be increased.

On the other hand, at the time of threshing of a crop having a high grain leakage rate such as a dry crop, the upper case 15 is opened upward with respect to the lower case 14 (see FIG. 1), and as described above. By the method, the operation lever 24 is pushed downward and oscillated against the biasing force of the spring 25, and is locked to the locking projection 26 in the lower case 14 to put the tension clutch 22 in the “clutch disengaged” state. After that (see FIG. 2), the upper case 15 is closed and the handling barrel shaft 1a is driven and rotated. Even if the handling cylinder shaft 1a is driven and rotated, the driving torque is not transmitted to the net-receiving compulsory vibrating device 6, so that wasteful consumption of power can be prevented, unnecessary vibration noise can be prevented, and the surroundings of the net can be prevented. It is possible to prevent unnecessary vibration force from acting on the structure.

Further, since the tension clutch 22 and the locking projection 26 are provided in the case composed of the upper and lower parts, the dead space is effectively used as compared with the case where the tension clutch 22 and the engaging projection 26 are provided outside the case. Space can be saved, the structure can be simplified, and erroneous operation can be prevented.

The operating lever 2 is attached to the cover 27 for preventing the intrusion of straw into the belt type transmission mechanism 17.
Since the locking projection 26 for the control lever 4 is provided, the number of constituent members of the holding means for the operation lever 24 can be reduced, the structure can be simplified, and the production cost can be reduced.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of a tension clutch with a clutch engaged.

FIG. 2 is a side view of the tension clutch with the clutch disengaged.

FIG. 3A is a cross-sectional plan view of the tension clutch, and FIG. 3B is a side view showing the locking operation of the operation lever with respect to the locking projection.

FIG. 4 is a vertical sectional front view of the threshing device.

FIG. 5 is a cross-sectional view showing a structure around a receiving net.

FIG. 6 is a vertical sectional side view of the threshing device.

[Explanation of reference numerals] 1 handling cylinder 1a handling cylinder shaft 2 receiving net 6 receiving net forced vibration device 14 lower case 15 upper case 17 belt type transmission mechanism 22 tension clutch 24 operating lever 26 holding means 27 cover P support shaft

Claims (2)

[Claims] 1. An upper case (1) for axially mounting a handling cylinder (1)
5) is supported on the lower case (14) so as to be swingable and openable about a support shaft (P) substantially parallel to the axis of the handling cylinder, and the handling case (1) of the handling cylinder (1) is attached to the lower case (14) side. A circular arc-shaped receiving net (2) is provided along the circumferential direction, and a driving torque is obtained from the handling barrel shaft (1a) via the belt type transmission mechanism (17) to move the receiving net (2) to the handling barrel (2). A threshing device provided with a forced net vibrating device (6) for forcibly vibrating in the circumferential direction of 1), wherein the belt type transmission mechanism (17) is equipped with an automatic tension type tension clutch (22), A threshing device in which a holding means (26) for holding the operation lever (24) of the tension clutch (22) at the clutch disengaged position is provided in the lower case (14). 2. A cover (27) for preventing the intrusion of straws into the belt type transmission mechanism (17) is provided with an engaging portion for the operation lever (24), and the holding means (2).
The threshing device according to claim 1, which constitutes 6).