JPH0545162Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a threshing device equipped with an opening adjustment mechanism that adjusts the opening of the chaff sheave lip and an air volume adjustment mechanism that adjusts the air volume of the winnow. be.

[Conventional technology]

In such a threshing device, dedicated actuators were used as drive sources for the opening adjustment mechanism and the air volume adjustment mechanism (references not listed).

[Problem that the invention attempts to solve]

However, since two expensive actuators are provided, not only is the cost increased, but the space for installing the actuators is also increased, leading to an increase in the size of the drive section.

The present invention was devised in view of these circumstances, and its purpose is to make the above-mentioned threshing device more compact and lower in cost.

[Means for solving problems]

The characteristic configuration of the present invention is that the chaff sheave lip opening adjustment mechanism and the winnowing air volume adjustment mechanism are linked to a single actuator that serves as their driving source, and the power of this actuator is selectively applied to both of the adjustment mechanisms. The present invention is provided with a switching mechanism that transmits data uniformly, and its functions and effects are as follows.

[Effect]

In other words, the power of one actuator can be selectively transmitted to the opening adjustment mechanism and the air volume adjustment mechanism by the switching mechanism, and the driving source for both adjustment mechanisms is shared by one actuator.

[Effect of idea]

Therefore, one actuator is not required compared to the conventional one, making it possible to make the threshing device more compact and lower in cost.

〔Example〕

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

What is shown in Fig. 3 is a well-known threshing device to which the present invention is applied, including a feed chain 2 that supplies grain culms to a handling chamber 1, and a feed chain 2 that supplies processed material leaking from the handling chamber 1. It has a chaff sieve 3 that transports the machine to the rear while sorting downwards, a winnow 4 that sends sorting air to the entire sorting section including the chaff sieve 3, and the like. and,
As shown in FIG. 1, a clamping rail 5 disposed parallel to the feed chain 2 is provided with a volume sensor S for determining the amount of grain culm based on its vertical displacement. Further, the chaff sheave portion 3 is provided with an opening adjustment mechanism 7 for adjusting the opening of the lip 6, and the winnower 4 is provided with an air volume adjustment mechanism 8 for adjusting the air volume.

The opening adjustment mechanism 7 and the air volume adjustment mechanism 8 are
One electric motor M, which is an example of an actuator
The power of the electric motor M can be selectively obtained by a switching mechanism 9.

That is, the first and second clutch members 11 and 12 are rotatably fitted onto a single shaft 10, and
A fan-shaped sleeve member 13 as shown in FIG. 2 is fitted between the second clutch members 11 and 12 so as to be rotatable and shiftable.
The pinion gear 1 of the electric motor M is located in the arc portion of
4 and a fork member 15 on the center side.
are engaged to form the switching mechanism 9. and,
Fork member 1 associated with the operation of electromagnetic solenoid SL
The sleeve member 13 is shifted by the rocking of 5,
First clutch member 11 or second clutch member 12
The two clutch members 11 and 12 are engaged with each other so that the power of the electric motor M is transmitted to the first clutch member 11 or the second clutch member 12. Further, the first clutch member 11 and the first swing link 16 of the opening adjustment mechanism 7 are linked via a push-pull wire _W1 ,
The first swing link 16 swings in conjunction with the rotation of the first clutch member 11, and the second
The clutch member 12 and the second swing link 17 of the air volume adjustment mechanism 8 are linked via another push-pull wire _W2 , and the second swing link 17 is linked to the rotation of the second clutch member 12. It is made to oscillate.

The opening adjustment mechanism 7 is configured such that each lip 6 is linked to a movable frame 21 and the inclination angle of each lip 6 changes as the first swing link 16 swings. As the opening becomes steeper and the opening becomes larger, the leakage screening becomes coarser, and as the angle of inclination becomes gentler and the opening becomes smaller, the leakage screening becomes finer.

The air volume adjustment mechanism 8 is configured such that the lid 19 of the front opening 18 is linked to the second swing link 17, and the opening/closing degree of the lid 19 changes as the second swing link 17 swings. The air volume increases as the lid 19 opens and the front opening 18 widens.

A first potentiometer PM1 for determining the angle of the lip 6 by detecting the swing angle is installed at the fulcrum of the first swing link 16, and a first potentiometer _PM1 is mounted at the fulcrum of the second swing link 17. is provided with a second potentiometer _PM2 that determines the degree of opening and closing of the lid body 19 by detecting the swing angle. These first and second potentiometers PM ₁ and PM ₂ are connected to the control device 20 together with the volume sensor S, and the detection signals are sent to the control device 20 at any time.
It is now being sent to Further, the control device 20 is connected with the electromagnetic solenoid SL and the electric motor M, and the volume sensor S and the first and second
These are moved based on the detection results of potentiometers PM ₁ and PM ₂ .

Specifically, when the amount of grain culm detected by the volume sensor S increases, the control device 20 controls the opening degree of the chaff sheave 3 detected by the first potentiometer PM 1 and the second potentiometer PM ₁ to increase the amount of grain culm detected by the volume sensor S.
It is determined that the air volume of the winch 4 detected by PM ₂ is relatively small, and the electric motor M is driven and the electromagnetic solenoid SL is activated.
The power is transmitted to the opening degree adjusting mechanism 7 or the air volume adjusting mechanism 8 as necessary to increase the opening degree and the air volume. Furthermore, when the amount of grain culm detected by the volume sensor S decreases, the electric motor M is driven in the opposite direction to reduce the opening degree and air volume.

Note that 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,
FIG. 1 is a diagram showing the control system, FIG. 2 is a sectional view of the switching mechanism, and FIG. 3 is an overall longitudinal sectional side view. 3... Chaff sheave, 4... Tang winch, 6... Lip, 7... Opening adjustment, 8... Air volume adjustment mechanism, 9...
...Switching mechanism, M...Electric motor.

Claims (1)

[Claims for Utility Model Registration] 1. Opening adjustment mechanism 7 for the lip 6 of the chaff sheave 3
and the air volume adjustment mechanism 8 of the winch 4 to a single actuator M serving as their drive source, and a switching mechanism 9 that selectively transmits the power of this actuator M to both the adjustment mechanisms 7 and 8. A threshing device equipped with 2. The threshing device according to claim 1, wherein the actuator M is an electric motor.