JPS6218186Y2 - - Google Patents

Description

[Detailed description of the invention] This invention automatically rotates the dropper body, which receives and collects waste straw sent out from a threshing machine in a sideways position, downward around the horizontal axis when the collection weight reaches a set value. In addition to being configured to move, by utilizing the downward automatic rotation force of this dropper body,
This invention relates to a straw dropper device for a threshing machine, which is provided with a mechanism that rolls and rotates a dropper main body around a vertical axis so that the straw pile base side is swung inward of the machine body.

As a technique for rotating the dropper body around both the vertical axis and the vertical axis as described above, for example, as shown in Japanese Utility Model Application No. 47-8656, One end side of the rotating shaft is connected to the fixed part side with a universal joint, the other end side is supported by a guide rail, and the other end is supported by the guide rail as the amount of collected waste straw received by the dropper body increases. A technique is known in which the side of the guide rail is swung around the vertical axis of the universal joint on the one end side along the slope of the guide rail.

However, in a structure in which the other end side swings along the slope of the guide rail, as the dropper body swings, the position of the other end side where the guide rail is provided gradually changes. Because it is lower relative to the ground, the waste straw is not discharged in a direction perpendicular to the axis of the culm along the axis of rotation of the dropper body.
There is a drawback that slippage occurs in the direction of the culm and it slides down while moving to the other end side where the guide rail is provided, and the posture of the waste straw after being released is greatly disturbed. In particular, if you want to apply shocking vibrations to the dropper body so that even damp waste straw can be reliably released, it is necessary to use the rotational force of the rotating shaft that rotates under the weight of the waste straw to generate the impact. Since this structure is not available, the angle of inclination from the starting end to the end of the guide rail must be increased, and such a steep inclination will further expand the drop at the other end of the dropper main body, making it difficult for most straw removal There is a risk that the stem may slip in the direction of the culm, and the intended effect of swinging out the stock side toward the inside of the machine may not occur.

The purpose of the present invention is to effectively use the structure for restricting the rotational movement of the dropper body by the rolling turning mechanism to ensure that the dropper body swings out the discarded straw stock toward the inside of the machine. The idea is to apply a large impact force to the dropper body while moving the dropper so that the wet straw can be discharged well.

The characteristic structure of the present invention to achieve the above object is that the rotating shaft is horizontally suspended in a substantially horizontal position, and the straw receiving surface component is integrally connected to the rotating shaft. A dropper body is configured to receive and condense the waste straw sent out in a horizontal position, and when the weight of the waste straw collected by the dropper body reaches a set value, the dropper body is moved to the axis of the rotating shaft. It is configured to automatically rotate downward around the horizontal axis, which is the core, and by using the downward automatic rotational force of the drotsuper body, the drotsuper body is swung toward the inside of the machine. A straw removal dropper device for a threshing machine is provided with a rolling rotation mechanism for swinging the straw around a vertical axis provided at a position on the side of the tip of the waste straw. , a rack gear formed along an arc centered on the vertical axis, and a tooth surface that is integrally connected to the rotating shaft at a position away from the vertical axis and meshes with the rack gear; It is formed along an arcuate surface centered on the horizontal axis, which is the axis of the shaft, and both sides of the arcuate surface are formed into straight side surfaces along the radial direction, making the whole almost fan-shaped. and a pinion gear, further comprising a position opposite to one radial side of the pinion gear when the dropper main body is in a straw-receiving and focusing attitude, and a radius of the pinion gear when the dropper main body is in a straw-discharge releasing attitude. The main feature is that a stopper is provided at a position facing the other side in each direction and comes into contact with the pinion gear to restrict its rolling and turning.

With the above configuration, the dropper main body is rotated around both the horizontal axis and the vertical axis. Then, the arc-shaped pinion gear, which is provided integrally with the rotating shaft of the Dropper main body, receives the weight of the waste straw and rotates around the horizontal axis while revolving around the vertical axis, and the Dropper main body assumes the straw removal posture. When this happens, the radial side surface of the pinion gear comes into impactful contact with the stopper, acting to transmit the impact vibration to the waste straw on the waste straw receiving surface component.

Since it works as described above, the present invention has two functions: the rotation action around the horizontal axis of the pinion gear, which rotates under the large moment due to the weight of the collecting and discharging straw received by the dropper body, and the rotation action around the vertical axis. The pinion gear and stopper come into contact with a large impact force that takes into account the revolving speed at be.

The structure for generating such shocking vibrations is one that makes good use of a mechanism for swinging the dropper body around the vertical axis and a member for regulating the swing range. Therefore, compared to the case where a separate vibration generating means is provided,
It is also advantageous in that it can be configured with a simple structure.

In addition, as a means for producing the above-mentioned shocking vibration, the rotation shaft is rolled diagonally downward by utilizing the inclination of the guide rail that supports the rotation shaft of the dropper body as in the conventional structure. Although the rotation axis of the dropper body is horizontally swung around one vertical axis, it can generate a large impact force, and therefore, the conventional structure There is less risk of a large amount of waste straw slipping down towards the culm due to the inclination of the rotation axis of the dropper main body during the swinging of the dropper main body, as in It is easy to release when held close.

Embodiments of the present invention will be described below based on the drawings.

Fig. 1 shows a straw removal cutter device of a combine as an example of a threshing machine, in which the straw is sent backward from the threshing section 1 over the upper side of the removal straw cutter 3 by a clamping and conveying device 2 that pinches and conveys the stock end. The dropper main body 4 is composed of a fork-shaped waste straw receiving surface component 4B that receives and converges the waste straw in a sideways posture, and a rotating shaft 4A that integrally connects this removed straw receiving surface component 4B. The dropper main body 4 is made to be able to swing with respect to the machine body through a rotating shaft 4A around a vertical axis Y provided near the tip receiving side, and a horizontal axis X which is the axis of the rotating shaft 4A. When the amount of collected and collected waste straw on the dropper main body 4, which is horizontally mounted along the left and right directions of the machine in a substantially horizontal position so as to be able to swing around the machine, and is in a position to receive and collect waste straw, reaches a set value. , a spring 5 that automatically rotates the dropper body 4 downward around the horizontal axis X;
Then, the spring 5' that returns to the upper position after releasing the waste straw, and the dropper main body 4 are automatically rotated downward around the horizontal axis X, and are held at the base of the stock around the vertical axis Y. A rolling and turning mechanism 8 is provided which rotates the machine so that its side swings toward the rear of the machine body, and returns to a position along the left-right direction of the machine body as it rotates upward.

As shown in FIGS. 2 and 3, the rolling rotation mechanism 8 includes a rack gear 7 fixed to the fuselage side along an arc centered on the vertical axis Y of the rotating shaft 4A.
A fan-shaped fan-shaped member is connected to one end opposite to the mounting position of the straw receiving surface component 4B across the vertical axis Y of the rotating shaft 4A, and has an arcuate surface centered on the horizontal axis X. As shown in FIG. 2, the waste straw receiving surface component 4B of the dropper main body 4 automatically rotates downward around the horizontal axis X from the waste straw receiving and converging posture in position A. As it moves, the pinion gear 6 rotates counterclockwise, and as the pinion gear 6 rotates at this time, the gear 6a formed along the circular arc surface meshes with the rack gear 7 fixed to the fuselage side. 6 begins to revolve toward the front of the machine body about the vertical axis Y, and the waste straw receiving surface component 4B turns toward the rear of the machine body.

And the radial side surface 6c of the pinion gear 6
The stopper 1 is connected to one end of the rack gear 7.
0', the straw receiving surface forming member 4B stops at the position B and assumes the straw releasing position.

Furthermore, after the discharge of waste straw is finished, the dropper main body 4
When the pinion gear 6 rotates clockwise as the pinion gear 6 rotates upward, the pinion gear 6 begins to revolve toward the rear of the aircraft around the vertical axis Y, and the radial side surface 6b of the pinion gear 6 rotates around the rack gear 7. When it comes into contact with the stopper 10 connected to the other end, the waste straw receiving surface component 4B stops again at the position A, and the dropper main body 4B returns to the waste straw receiving and focusing posture.

In addition, in order to prevent the waste straw received and gathered on the dropper main body 4 from falling off, the free end side of the dropper main body 4 is attached to a shaft member that pivotally supports the dropper main body 4 so as to be able to swing around the vertical axis Y. A straw receiving rod 9 is installed which is positioned in a vertical position and rotates in conjunction with the dropper main body 4 only around the vertical axis Y.

[Brief explanation of drawings]

The drawings show an embodiment of the straw removal dropper device for a threshing machine according to the present invention, and FIG. 1 is a perspective view, FIG. 2 is an enlarged sectional view with a partial cutout of the main part, and FIG. 3 is a partial cutaway of the main part. It is a cutout enlarged rear view. 1... Threshing section, 4... Dropper body, 4A...
...Rotating shaft, 4B... Straw removal surface receiving surface component, 6...
Pinion gear, 6a...Tooth surface, 6b...One radial side, 6c...Other radial side, 7...Rack gear, 8...Rolling turning mechanism, 10, 10'...Stopper, X...Horizontal axis Core, Y... Vertical axis core.

Claims (1)

[Scope of utility model claims] A rotating shaft 4A horizontally suspended in a substantially horizontal position and a straw receiving surface component 4B integrally connected to the rotating shaft 4A receive the waste straw sent out from the threshing machine 1 in a sideways position. When the weight of the waste straw collected by the dropper main body 4 reaches a set value, the dropper main body 4 is moved toward the horizontal axis X, which is the axis of the rotating shaft 4A. The dropper body 4 is configured to automatically rotate downwardly around the machine, and by using the downward automatic rotation force of the dropper body 4, the dropper body 4 is rotated so that the discarded straw stock base side is swung inward within the machine. In a straw removal dropper device for a threshing machine, which is provided with a rolling turning mechanism 8 that swings around a vertical axis V provided at a position on the straw tip side, the rolling turning mechanism 8 is fixed to the threshing machine 1 side, and A rack gear 7 formed along an arc centered on the vertical axis Y, and a gear integrally connected to the rotating shaft 4A at a position away from the vertical axis Y and meshing with the rack gear 7. 6a is formed along a circular arc surface centered on the horizontal axis X, which is the axis of the rotating shaft 4A,
Both sides of the circular arc surface are formed into linear side surfaces 6b and 6c along the radial direction, and the entire body is composed of a pinion gear 6 having a substantially fan shape. The pinion gear 6 is located at a position facing one radial side surface 6b of the pinion gear 6 in a certain state, and at a position facing the other radial side surface 6c of the pinion gear 6 when the dropper main body 4 is in the straw removal posture. A straw removal dropper device for a threshing machine, characterized in that stoppers 10 and 10' are provided to abut against and restrict the rolling and turning of the threshing machine.