JP2838887B2 - 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. 7, 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 rail 34 cooperate to convey the stem and culm, and when the stem and culm are clogged between the endless rotating band 35 and the clamping rail 34, the clamping rail 34 is moved to the endless rotating band 3.
In order to form the clamping action releasing means which is separated from 5, the bending support rod 30 is formed to be able to bend and stretch freely at the waist bending part, and the bending supporting rod 30 is fixed by the fastening bolt 36 at the waist bending part, and the clamping rail 34 is moved to the transfer operation position. Maintain and tighten bolts 3
There is known a configuration in which the clamping action is released by releasing the pin 6.

[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. SUMMARY OF THE INVENTION It is an object of the present invention to improve the urging means and the holding action releasing means to have a simple structure, and to surely prevent the trouble of the apparatus due to the jam of the conveyance.

[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 biasing reaction force is formed as an operating lever that locks the torsion spring against the locking tool, and is separated by a distance equal to or greater than the set distance from the endless rotation band of the holding rail. A mechanical automatic clamping release means for releasing the locking of the torsion spring to the locking member is provided in a state in which the holder is mechanically interlocked.

[0005]

[Function] In other words, at the time of conveyance, the biasing reaction force point of the torsion spring is fixed by the locking tool, and the holding rail is oscillated in the direction of approach to the endless rotating band by the bias of the holder by the torsion spring. When the stem is clogged between the endless rotating band and the clamping rail, the torsion spring is automatically released from the locking device by automatic clamping release means, and the stem is formed by the clamping rail and the endless rotating band. Release the culm clamping action, operate the biasing reaction force side end of the torsion spring that has become the operation lever, swing the clamping rail away from the endless rotation band, and release the jam torsion spring Is configured to be fixed by the locking tool.

In short, the urging means for bringing the holding rail closer to the endless rotation band and the holding action releasing means for separating the holding rail from the endless rotation band are also used, and the automatic holding release means is electrically or hydraulically operated. By using a mechanical type that is inexpensive as compared with a conventional type, the structure of the urging means and the clamping action releasing means can be made simple, and the production of the urging means and the clamping action releasing means can be sufficiently simplified and the manufacturing cost can be reduced. In addition, immediately after the conveyance jam occurs, the clamping action of the stem and culm by the clamping rail and the endless rotating belt is released immediately, and the trouble of the apparatus due to the excessive conveyance jam is reliably prevented. is there.

[0007]

As a result, the urging means for bringing the holding rail closer to the endless rotating band and the holding action releasing means for separating the holding rail from the endless rotating band can be simplified in structure.
In addition, it is possible to provide a more excellent stem / culm transfer device in all aspects of manufacturability, manufacturing cost, and prevention of device trouble due to clogging, which can surely prevent device trouble due to conveyance clogging.

[0008]

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 grain culm conveyance such as a chain with a conveyance claw wound around a driving wheel and an idler wheel is used to form the stock side clamping conveyance 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 for baton touch is attached to the rear end side of the holding rail 15 so as to facilitate the transfer of grain to the feed chain 9.

[0010] Nipping rail 1 to release 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 from the side of the biasing reaction force is connected to the torsion spring 1 with respect to the locking portion 21.
The rotation cam 24 acting on the torsion spring 18c is attached to the support shaft 19 so as to be rotatable integrally with the operation lever 18c. The cam surface 24a of the rotating cam 24 is formed so as to release the locking of the torsion spring 18 with the locking member 21 with the separation. That is, the endless rotating band 14
When the grain stalk is clogged between the stalk and the holding rail 15, the torsion spring 18 is automatically released from the locking member 21 by the rotating cam 24 to release the stem stalk holding action by the holding rail 14 and the endless rotating band 14. Then, the operating lever 18c is operated to swing the holding rail 15 away from the endless rotation band 14, and after the jam is released, the torsion spring 18 is fixed by the locking portion 21, so that the conveyance due to the jam is performed. System troubles can be reliably prevented.

A sensor 23 such as a lit switch for detecting that the torsion spring 18 has been released from the locking member 21 by contact with the operating lever 18c is provided, and the torsion spring is locked based on information from the sensor 23. The engine stop device and the alarm device are activated when the device is removed from the fixture, and the configuration is such that the resetting of the holding rail 15 after the clogging is released is surely executed.

[Other Embodiment] As shown in FIG. 6, screws 25a and 25b driven by the power from the feed chain 9 are provided at the start end of the feed chain 9, and It is also possible to carry out the transfer of the grain stalk to the feed chain 9 without fail. The type of the endless rotating band 14 can be appropriately selected from known ones, and the stem to be transported can be appropriately selected as appropriate.
The installation target of the stem / culm transfer device is not questionable. 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 the holding rail 15 is attached to the holder 16.
The specific configuration fixed to the can be appropriately changed. The locking structure for fixing the biasing reaction end 18b of the torsion spring 18 to the biasing position and releasing the biasing action by releasing the lock can be freely changed as appropriate. I do.
A specific configuration for releasing the locking of the torsion spring 18 to the locking member 21 with the separation of the holding rail 15 from the endless rotation band 14 by a distance equal to or longer than the set interval is mechanically linked to the holder 16. If so, it can be appropriately changed, such as a link type, and these are collectively referred to as mechanical automatic clamping release means 24.

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 attached 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 a plan 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 plan view showing a feed chain front part of another embodiment.

FIG. 7 is an explanatory view of a main part of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 14 Endless rotating band 15 Holding rail 16 Holder 18 Torsion spring 18b Energizing reaction end 18c Operating lever 21 Locking tool 24 Automatic holding release means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa Sho 61-1442539 (JP, U) Japanese Utility Model Showa Sho 63-145423 (JP, U) (58) Fields 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 stem / culm conveying device provided with biasing means for approaching the clamping rail and a clamping action releasing means for separating the clamping rail (15) from the endless rotating band (14). 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. Mobilization (1
4) A torsion spring (1
8), and the biasing reaction end (1) of the torsion spring (18) is provided.
8b) is formed so that the urging action can be released by releasing the lock, and the end of the torsion spring (18) on the side of the urging reaction point is set to the above-mentioned position. Locking tool (21)
And an operating lever (18c) for locking the torsion spring (18) with respect to the endless rotation band (14) of the holding rail (15). A stem and stem provided with a mechanical automatic clamping release means (24) for releasing the engagement of the torsion spring (18) with the stopper (21) in a state of being mechanically interlocked with the holder (16). Transport device.