JP2838886B2 - Stem and culm conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biasing means for movably mounting a holding rail for conveying stem and stalk in a direction approaching and separating from an endless rotating band for conveying stem and stem, and for bringing the holding rail closer to the endless rotating band. Further, the present invention relates to a stem / culm conveying device provided with a clamping action releasing means for separating a clamping rail from an endless rotating band.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, in order to form an urging means, a holder 31 is attached to a curved support rod 30, and the support rod 32 is slidably urged by a coil spring 33. 31 and push the holding rail 34 toward the endless turning band 35 with the coil spring 33 to thereby make the endless turning band 3
5 and the clamping rails 34 cooperate to clamp and transport the stems and stems. When the stems and stems are clogged between the endless rotating band 35 and the clamping rails 34, the clamping rails 34 are separated from the endless rotating band 35. In order to form the holding action releasing means for causing the
0 is formed so as to be able to bend and stretch freely at the waist-folded portion, the curved support rod 30 is fixed by the tightening bolt 36 at the waist-folded portion, the holding rail 34 is maintained at the transfer operation position, and the tightening bolt 36 is loosened to release the holding operation. Such a configuration is known.

[0003]

However, since the urging means and the holding action releasing means are independent of each other, the structure for forming both means becomes complicated,
There is room for improvement in terms of simplification of production and cost reduction. An object of the present invention is to improve the urging means and the holding action releasing means to have a simple structure.

[0004]

A feature of the present invention is that a clamping rail for conveying stem and culm is movably mounted in a direction approaching and separating from an endless rotating band for conveying stem and culm, and the clamping rail is moved closer to the endless rotating band. In a stem / culm conveying device provided with a biasing means for causing the clamping rail to be separated from the endless rotating belt, a holder to which the clamping rail is fixed is used to form the biasing means and the clamping releasing means. A torsion spring is installed to swing freely in the direction approaching and moving away from the endless rotation band, and a torsion spring is provided to urge the holder to swing in the direction to approach the endless rotation band. The biasing reaction end of the torsion spring is biased. A locking member fixed at the operating position is formed so that the urging action can be released by releasing the locking,
The end of the torsion spring on the side of the urging reaction force is formed as an operation lever for engaging and disengaging the torsion spring with respect to the locking member.

[0005]

[Function] In other words, at the time of transport, the biasing reaction force end of the torsion spring is fixed by the locking member, and the holding rail is oscillated in the direction of approaching the endless rotating band by the bias of the holder by the torsion spring. When the stem is clogged between the endless rotating belt and the holding rail, the torsion spring acting as the operating lever is operated at the biasing reaction force side end to operate the torsion spring. After being released from the stopper, the holding rail is swung in a direction away from the endless rotating band, and after the jam is released, the biasing reaction end of the torsion spring is fixed by the stopper. In short, the urging means for bringing the clamping rail closer to the endless rotating band and the clamping action releasing means for separating the clamping rail from the endless rotating band are simplified in structure by using a common structure, and the urging means and the clamping action are released. The production of the means can be sufficiently simplified and the production cost can be greatly reduced.

[0006]

As a result, the urging means for bringing the holding rail closer to the endless turning band and the holding action releasing means for separating the holding rail from the endless turning band can be made simple in structure and productivity. It has become possible to provide a stalk / culm transfer device that is more excellent in cost.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cutting unit 2 is swingably moved up and down around a support shaft 4 by a hydraulic cylinder 3 at the front of a traveling vehicle body equipped with a crawler type traveling device 1 and mounted with a threshing device 7. At the same time, the harvesting unit 5, the cutting blade 6, and the stock-side clamping / conveying device 8 and the tip-side engaging / conveying device 10 which feed the harvested cereals to the feed chain 9 of the threshing device 7 are connected to the cutting unit. 2 to make up a self-contained combine.

As shown in FIGS. 2 to 5, an endless rotation for transporting grain culm, such as a chain with transport claws wound around a driving wheel and a free wheel, is used to form the stock-side clamping transport device 8. The holding rail 15 is arranged close to the band 14 and the supporting member 11 is attached to the curved mounting frame 13 which bypasses the transport path.
, The swing arm 12 is attached to the support member 11 with the support shaft 19, the holder 16 is attached to the swing arm 12 so as to be rotatable therearound, and a pair of support bolts 1 of the holding rail 15 are provided.
7 is inserted into the long hole 16a of the holder 16 so as to be able to change its position in the longitudinal direction of the transported culm, and the holder 16 is held by a pair of nuts 20 screwed to the support bolts 17 to hold the holding rail 1.
5 is fixed to a holder 16, and a torsion spring 18 for urging the swing arm 12, the holder 16 and the holding rail 15 in a direction of approaching the endless rotating band 14 is fitted on the support shaft 19. When the urging action end 18a is locked to the swing arm 12, the urging reaction force end 18b is connected to the locking portion 2 of the support member 11.
1, the endless rotating band 1
4 and the clamping rail 15 cooperate to clamp and transport the stem of the grain culm.
6, the holding rail 15 is swung with respect to the endless turning band 14 so as to be able to cope with the change in the amount of the transported culm. By operating the nut 20, the holding rail 15 for the endless turning band 14 is operated.
Is adjustable in the distance direction and in the longitudinal direction of the transported grain. An extension rail 15a made of a spring wire is provided on the rear end side of the clamping rail 15 so as to facilitate the transfer of the grain stalk to the feed chain 9.

[0009] Nipping rail 1 for releasing jam of grain stalk transport
5 is separated from the endless rotating band 14 by the locking portions 21.
The opening 11a of the supporting member 11 forming the torsion spring 1
8 is formed into a shape that can be released from the engagement with the opening 11a.
The end of the torsion spring 18 projecting outward from the support member 11 on the side of the biasing reaction force is formed on an operation lever 18c for engaging and disengaging the torsion spring 18 with respect to the locking portion 21. . That is, when the grain stem is clogged between the endless rotating band 14 and the holding rail 15, the operating lever 18c is operated to cause the torsion spring 1 to move.
8 is detached from the locking portion 21 and the holding rail 15 is swung in a direction away from the endless rotating band 14 so that the torsion spring 18 is fixed by the locking portion 21 after the clogging is released.

A sensor 23 such as a limit switch is mounted on a sensor holder 22 rotatably mounted on the support shaft 19, a detection piece 24 for the sensor 23 is mounted on the support shaft 19 so as to be rotatable integrally, and an operation lever 18c is mounted on the sensor holder. In a state where the torsion spring 18 is fixed by the locking portion 21 and the holding rail 15 is separated from the endless rotation band 14 by a set distance or more due to jamming of the grain stalk, the detection piece is detected. 24 adjustment bolts 24a
, The engine stop device and the alarm device are activated by the information from the sensor 23, so that the trouble of the transport system due to the clogging can be surely prevented. When the holding rail 15 is detached from the endless rotating band 14 by removing from the
, The sensor holder 22 is integrally rotated so as not to contact the detection piece 24, and the engine stop device is maintained in a non-operating state, so that the clogging can be released using the driving force of the transport system. It is composed.

[Alternative Embodiment] The type of the endless rotating belt 14 can be appropriately selected from known ones, and the stems and stems to be transported can be freely selected as appropriate.
A specific configuration in which the holder 16 is swingably mounted in a direction of approaching and separating from the endless rotating band 14, and a holding rail 15
The specific configuration for fixing the to the holder 16 can be appropriately changed. The locking structure for fixing the biasing reaction force point 18b of the torsion spring 18 at the biasing position and releasing the biasing operation by releasing the lock can be changed as appropriate, and the locking configuration is changed to the locking member 2.
1 collectively.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is a partial side view of a combine.

FIG. 2 is a sectional view of a main part.

FIG. 3 is an exploded perspective view of a main part.

FIG. 4 is a plan view of the holding and conveying device at the stock side.

FIG. 5 is a rear view of the holding side conveying device at the stock side;

FIG. 6 is a rear view of a main part of a conventional example.

[Explanation of symbols]

 14 Endless rotating band 15 Nipping rail 16 Holder 18 Torsion spring 18b Energizing reaction end 18c Operation lever 21 Locking tool

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01D 61/00

Claims (1)

(57) [Claims] 1. A stalk-carrying clamping rail (15) is movably mounted in a direction approaching and away from the stalk-culm carrying endless rotating band (14), and the clamping rail (15) is attached to the endless rotating band (14). ) And a clamping action releasing means for separating the clamping rail (15) from the endless rotating band (14), the stem and stem conveying device provided with the biasing means and the clamping means. In order to form the action release means, a holder (16) to which the clamping rail (15) is fixed is attached so as to be swingable in a direction approaching and away from the endless rotation band (14), and the holder (16) is rotated endlessly. A torsion spring (18) for oscillatingly biasing in the approaching direction to the moving band (14) is provided, and a biasing reaction end (18b) of the torsion spring (18) is fixed at a biasing position. The urging action can be released by releasing the stopper (21). And the torsion spring (1)
An operation lever (18) for engaging and disengaging the torsion spring (18) with respect to the locking tool (21) is attached to the end of the biasing reaction force point side of 8).
The stem / culm conveying device formed in c).