JPH10155337A - Reaping part normal/reverse rotation driving device for general purpose combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically and effectively stop a raking reel at the front part of a reaping part when a feeder inside a feeder chamber is reversely rotated. SOLUTION: In a general purpose combine for which the reaping part A equipped with the raking reel 1, a cutting blade 2 and a raking auger 3, etc., is successively provided on the front part of a threshing part through the feeder chamber C and the feeder 4 inside the feeder chamber C is made freely drivable to be rotated normally and reversely, to an intermediate driving shaft 6 pivotally disposed in a transmission route for performing transmission from the normal/ reverse rotation driving side of the feeder 4 to the side of the reaping part A and transmission-connected to the raking reel through a chain transmission part 5, a transmission sprocket 7 on an upper movement high order side is fitted through a unidirectional clutch 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general-purpose combine harvester forward / reverse drive device capable of automatically stopping a rush reel in front of a harvester when a feeder in a feeder chamber is reversed.

[0002]

2. Description of the Related Art Conventionally, a mowing section equipped with a scraping reel, a cutting blade, a scraping auger and the like is continuously provided through a feeder chamber in front of a threshing section, and a feeder in the feeder chamber can be driven to rotate forward and reverse. In the general-purpose combine constructed as described above, the transmission chain between the rotation shaft of the mowing unit driven from the forward and reverse rotation drive side of the feeder and the raking reel, relaxes the chain while pressing the tension rod at the time of reverse rotation. There was a tension pulley that could be fitted.

[0003]

However, in such a tension device, the tension rod is pushed at the time of reverse rotation, so that it is easily deformed and broken, and
The chain is easily dislodged from the sprocket and easily damaged, and in the event of malfunction, the scraping reel reverses and releases the harvested grain stalks to the outside of the machine. Even if a reel clutch is interposed, the operation has to be performed each time the forward / reverse switching is performed, which is troublesome and complicated.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised to solve such a problem and to ensure that the squeeze reel automatically and satisfactorily stops during reverse rotation. In a general-purpose combiner which is provided with a mowing unit equipped with a scraping auger and the like in front of a threshing unit via a feeder chamber, and is configured such that the feeder in the feeder chamber can be driven forward and reverse, the forward and reverse rotation of the feeder A one-way clutch is interposed in a transmission path transmitted from the drive side to the reaping unit side.

[0005]

Therefore, when the feeder is driven forward, each part of the mowing unit is also driven forward, and the one-way clutch is actuated so that, for example, the drive sprocket and the intermediate drive shaft rotate forward by the chain transmission unit. The scraping reel will also be driven forward, and if the feeder is driven in reverse, for example, the drive sprocket will also rotate in reverse,
The one-way clutch does not operate, for example, the intermediate drive shaft or the like remains stopped, the chain transmission unit also remains safely stopped, and the take-up reel automatically stops.

[0006]

3 and 4 schematically show a general-purpose combine as a whole. A threshing unit B equipped with a handling drum 10 and the like is mounted on an airframe supported by both crawlers 9, and the threshing unit B is shown in FIG. A cutting section A equipped with a scraping reel 1, a cutting blade 2, a scraping auger 3 and the like is connected to a front portion of a feeder chamber C extending in front of the cutting section A, and the cutting section A can be moved up and down by a hydraulic cylinder 11. In front of the Glen tank 12 mounted on the lateral side of the threshing section B, a cabin 13 of a driver's cab is provided, and a discharge auger cylinder 14 is mounted from above the engine section D provided behind the Glen tank 12. It is extended and configured similarly to the conventional structure.

A feeder 4 of a chain conveyor type is provided in the feeder chamber C. A rotary shaft 15 for supporting the rear of the feeder chamber C and a communication port provided in a rear frame 16 of the reaper A are provided. Drum 1 that is mounted close to 17
, And one end of the rotating shaft 15 is operatively connected to a forward / reverse rotation motor 19 via a sprocket chain 20, and the other end of the rotating shaft 15 is a mowing unit driving sprocket. 21 is fitted.

[0008] A passive sprocket 24 on which a chain 23 extending from the sprocket 21 is fitted is fitted on a cutting power transmission shaft 22 which is laterally mounted along the rear frame 16 of the cutting unit A. In a transmission case 25 installed on the lateral side of the cutting unit A, the cutting transmission shaft 22 and the drive shaft 26 of the scraping auger 3 are operatively connected by a sprocket chain 27, and the intermediate drive shaft 6 and the cutting The drive shaft 28 of the blade 2 is operatively connected by a sprocket chain, the intermediate drive shaft 6 and the intermediate shaft 6a are operatively connected by a chain transmission portion 5a of the sprocket chain, and the intermediate shaft 6a and the scraping reel 1 are connected. The drive shaft 30 and the chain are transmitted and connected by the chain transmission portion 5 of the sprocket chain, but the chain extends from the sprocket 31 fixed to the drive shaft 26. The second transmission sprocket 7 which is hung the configure fitted through a one-way clutch 8 to the intermediate drive shaft 6.

Therefore, when the motor 19 rotates forward and the feeder 4 is driven to rotate forward, the respective parts of the mowing section A are also driven to rotate forward, and the one-way clutch 8 is operated to drive the drive sprocket 7 and the intermediate drive shaft. When the motor 19 rotates forward and the feeder 4 is driven in the reverse direction, the driving sprocket 7 is also driven in the reverse direction. However, the one-way clutch 8 does not operate and the intermediate drive shaft 6
Is stopped, and the chain transmission units 5a and 5 are also safely stopped, and the scraping reel 1 automatically stops.

[0010]

As described above, according to the present invention, when the feeder 4 is driven in the forward direction, the respective parts of the mowing section A are also driven in the forward direction, and the one-way clutch 8 is actuated, for example, to drive the sprocket 7 or the intermediate drive. When the shaft 6 and the like rotate forward, the scraping reel 1 is also reliably driven forward through the chain transmission unit 5 and the like, and when the feeder 4 is driven in the reverse direction and the reaping unit A is also driven in the reverse direction, For example, the driving sprocket 7 also rotates in the reverse direction, but the one-way clutch 8 does not operate in the reverse direction, the intermediate drive shaft 6 remains stopped, and the chain transmission unit 5 also remains safely stopped, and the reel 1 automatically stops effectively and has a feature that it can be easily implemented with a simple structure.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing a transmission main part of an embodiment of the present invention.

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

FIG. 3 is a side view schematically showing a general-purpose combine.

FIG. 4 is a plan view schematically showing a general-purpose combine.

FIG. 5 is a side view showing a feeder chamber.

FIG. 6 is a partially cutaway front view of FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 raking reel 2 cutting blade 3 raking auger A reaping section B threshing section C feeder chamber 4 feeder 5 chain transmitting section 6 intermediate transmission shaft 7 transmission sprocket 8 one-way clutch

Claims (1)

[Claims] 1. A cutting section A equipped with a scraping reel 1, a cutting blade 2, a scraping auger 3 and the like are connected in front of a threshing section B via a feeder chamber C, and a feeder in the feeder chamber C is provided. In a general-purpose combiner configured so that the feeder 4 can be driven forward / reversely, a one-way clutch 8 is interposed in a transmission path transmitted from the forward / reverse drive side of the feeder 4 to the reaping unit A side. Reaper forward / reverse drive.