JPH071943Y2 - Waste culm discharge device in combine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a culm bundle discharging device in a combine, which bundles the culm after threshing and discharges it in a standing posture in the field to promote the drying of straw. It is used.

[Prior art]

Conventionally, a holding and discharging device for bundling culm bundle composed of a conveyor chain and a guide rail opposed to the conveyor chain is provided, and a resistor is attached to the guide rail, and this resistor is projected into a conveying passage to form a culm bundle by the resistor. Japanese Patent Application Laid-Open No. Sho 57-74018 has already known a device that makes it easier to stand in a field by giving a resistance in the carrying direction and rotating it to release it in a state where the plant base is expanded.

[Problems to be solved by the invention]

However, in the conventional type, the amount of protrusion of the resistor into the transfer passage is set to a constant value.If the amount of protrusion is set to be large enough to match that of a large bundle of culm bundles, a moderate rotation occurs when the supply and discharge bundles are large bundles. Although the amount can be obtained, in the case of a small bundle, the amount of protrusion is relatively large relative to the bundle diameter, rather it may become a barrier and blockage occurs at the resistor part, and it may not pass smoothly.
If the amount of protrusion of the resistor is set to be small so that it corresponds to a small bundle, it is good for small bundles, but for large bundles, the amount of protrusion with respect to the bundle diameter decreases conversely, and the resistance is small and an appropriate amount of rotation can be obtained. Therefore, there is a problem that the lower part of the discharged culm bundle does not spread and does not stand in the field.

[Means for solving problems]

The apparatus for discharging culm bundles in a combine according to the present invention, which has been devised to solve the above problems, is as follows.

In the combine provided with the waste culm transporting mechanism 3 which discharges the waste culm bundles bound by the waste bunching unit 2 in a standing posture after being carried by the transport chain 4 and the guide rail 6 facing it, In the culm bundle transfer passage 5 between the guide rail 6 and the guide rail 6, there is provided a resistor 17 which projects from the guide rail 6 side and gives resistance to one side of the culm bundle being conveyed to rotate the same. Guide rail 6 of resistor 17
The amount of protrusion from the culm bundle transfer passage 5 can be changed,
It is characterized in that a resistance adjusting means is provided which can increase the amount of projection and increase the resistance as the thickness of the culm bundle increases.

[Action]

The culm bundle delivered from the culm bundling unit 2 passes through the culm bundle conveying passage 5 while being sandwiched between the conveying chain 4 and the guide rail 6, and is caught by the anti-antibody 17, and while rotating due to the resistance, the culm bundle conveying passage 5 It will fall from the end of and land in a standing posture.
At that time, the protrusion amount of the resistor 17 to the culm bundle conveying passage 5 can be changed, and as the culm bundle becomes larger, the protrusion amount of the resistor 17 is increased to increase the resistance force. Even if the thickness of the culm is changed, the resistor 17 acts at an appropriate position (appropriate height) in the radial direction of the culm bundle, and a resistance force corresponding to the size of the culm bundle is applied. Even if a small bundle of culm bundles is not clogged, a large bundle can rotate properly and land in an upright posture.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. 1 is a threshing part of a self-removing combine, 2 is a culm bundling part, 3 is a culm bundle conveying mechanism, and after threshing in the threshing part 1. The culms are bundled by the culm bundle unit 2, and the bundled culm bundles are conveyed by the culm bundle conveying mechanism 3 to one side of the machine (cut side) and discharged to the outside of the machine. ing.

The culm bundle conveying mechanism 3 is composed of a conveying chain 4 and a guide rail 6 facing the conveying chain 4, and a culm bundle conveying passage 5 is provided between the conveying chain 4 and the guide rail 6.

At the end of the guide rail 6 on the side of the bundling portion, a culm bundle receiving guide 7
However, the culm bundle drop guides 8 are provided at the ends on the discharge side.

Further, a slide plate 12 is provided at the conveying end portion of the conveying chain 4 to cover the turning portion, that is, the sprocket portion, and to form a vertical sliding surface.

The culm bundle receiving guide 7 guides the culm bundle supplied from the culm bundling portion 2 in a sideways posture in the conveying direction while changing it to a vertical posture, and the culm drop guide 8 cooperates with the sliding plate 12. This is for guiding and dropping the falling culm bundle in a vertical posture. Reference numeral 14 is a sweeper of the culm binding unit 2.

The guide rail 6 is supported by a rail base 15 via a rail support rod 6a attached to the guide rail 6, and is urged in the direction of the transport chain 4 by a rail spring 16 so that the waste culvert transport passage 5
It can move up and down according to the size of the culm bundle passing through.

Reference numeral 17 denotes a guide rail 6 at the end of the culm bundle transfer passage 5.
The resistor 17 has a V-shaped projection 17a which is projected downward. The resistor 17 is supported on the rail base 15 via a resistor support rod 17b provided on the upper part, and is conveyed by a resistor spring 18 to the conveying chain 4. It is biased in the direction, and the resistor 17 can move up and down independently of the up and down movement of the guide rail 6. Reference numeral 17c is a vertically elongated hole provided in the resistor 17, into which a guide pin 6c provided in the guide rail 6 is inserted.

With the above-described structure, the resistor 17 gives a resistance in the conveying direction to the culm bundle by its V-shaped projection 17a to rotate the culm bundle, and the rise amount of the guide rail 6 changes due to the change in the thickness of the culm bundle. But it doesn't follow up or down. Therefore, the resistor 17 relatively changes the amount of protrusion (h in FIG. 2 and H in FIG. 3) from the guide rail 6 to the culm bundle conveying passage 5 in accordance with the change in the thickness of the culm bundle. It is possible to reduce the protrusion amount of the resistor 17 when the thickness of the culm bundle is small,
A resistance adjusting means is provided which can increase the amount of protrusion of the resistor 17 to increase the resistance when the culm bundle becomes thicker.

Incidentally, 16a is a support washer for the rail spring 16, and 16b is a stop pin attached to the rail support rod 6a.

Further, 18a is a support washer for the resistor spring 18, and 18b is a stop pin attached to the resistor support culm 17b.

The stop pins 16b and 18b contact the lower edge of the rail base 15 to prevent the guide rail 6 and the resistor 17 from further descending.

In the one configured as described above, the culms after threshing in the threshing section 1 are bound by the culm bundling section 2, and the bound culm bundles are vertically arranged with the receiving guide 7 downward on the stock side. It is transformed into a posture and transferred to the culm bundle conveying mechanism 3, where it is conveyed to the discharge position through the culm bundle conveying passage 5 while being sandwiched between the conveying chain 4 and the guide rail 6, but at that time Is rotated by receiving the resistance of the V-shaped projection 17a of the resistor 17 provided in the culm bundle conveying path 5, so that the stock portion below the binding portion is circularly expanded. Then, the culm bundle reaching the conveyance end of the culm bundle conveying mechanism 3 is guided by the sliding plate 12 and the culm bundle drop guide 8 and falls in a standing posture while maintaining a vertical posture.

In the above operation, when the thickness of the culm bundle during transportation changes, the protrusion amount (projection height) of the resistor 17 into the culm bundle conveying passage 5 is automatically changed according to the size of the culm bundle. The resistance given to the culm bundle of the resistor 17 is automatically increased / decreased in proportion to the size of the culm bundle during conveyance. For example, as shown in FIG. In the case of a small bundle, the width l of the culm bundle conveying passage 5 is small, and the protruding amount h of the resistor 17 downward from the guide rail 6 is also small. Therefore, the acting position of the resistor 17 in the radial direction of the culm bundle is shallow (the working height is low), and the culm bundle receives a small resistance commensurate with the small bundle by the resistor 17 and rotates while rotating in the arrow direction. Passes smoothly without clogging the body 17 part.

Further, as shown in FIG. 3, in the case of a large bundle, the guide rail 6 is pushed up by an amount corresponding to the increase in the thickness thereof, and the width L of the conveyance passage 5 is increased, and the guide rail 6 is pushed up only by the moving amount. The protrusion amount H of the resistor 17 increases. Therefore, the acting position of the resistor 17 in the radial direction of the culm bundle is deep (the working height is high), and the culm bundle receives a large resistance corresponding to the large bundle by the resistor 17 and rotates in the arrow direction, When it passes, it is released in a state where the lower part is appropriately expanded.

[Effect of device]

The present invention is configured such that the amount of protrusion of the resistor 17 provided in the culm bundle conveying passage 5 from the guide rail 6 to the culm bundle conveying passage 5 can be changed. Since the resistance adjusting means for increasing the resistance of the resistor 17 is provided to increase the resistance of the resistor 17, when the bundle of discharged culms is small and the width of the discharge conduit 5 is narrow, the protruding amount of the resistor 17 is increased. If the culm bundle is large and the culm bundle conveying passage 5 is wide, the resistor 17
By increasing the amount of protrusion of, the proper position (proper height) in the radial direction of the bundle regardless of size
The resistance body 17 can be made to act on this to give a resistance force of a size corresponding to the size of the grain culm bundle. Therefore, in the case of a small bundle as in the conventional case, the resistor does not act as a barrier to block the drainage bundle, and conversely, in the case of a large bundle, the rotation of the bundle does not become insufficient. However, it can be rotated well and the lower part can be opened, and it is possible to land in the field in an upright position.

[Brief description of drawings]

The drawings show an embodiment according to the present invention. FIG. 1 is an overall rear view of the combine, FIGS. 2 and 3 are side view diagrams of the culm bundle conveying mechanism, and FIG. It is sectional drawing of a part. 1 ... Threshing unit, 2 ... Waste bunching unit, 4 ... Conveyance chain 5 ... Waste bunching transport passage, 6 ... Guide rail, 17 ... Resistor h, H ... Projection amount

Claims (1)

[Scope of utility model registration request] 1. A combine provided with an exhaust culm bundle transfer mechanism 3 for discharging an culm bundle bound by an exhaust bunching unit 2 in an upright posture after being sandwiched and transported by a transport chain 4 and a guide rail 6 facing it. , The transport chain 4 and the guide rail 6
In the culm bundle transfer passage 5 between the and, a resistor 17 is provided, which projects from the guide rail 6 side and gives resistance to one side of the culm bundle being conveyed to rotate the same, and The amount of protrusion from the guide rail 6 to the culm bundle conveying passage 5 is changeable, and a resistance adjusting means is provided which can increase the amount of protrusion and increase the resistance as the thickness of the culm bundle increases. An apparatus for discharging culm bundles in a combine characterized by the above.