JPH0730622U - General-purpose combine harvester forward / reverse drive - Google Patents

Abstract

(57) [Summary] [Purpose] When the feeder in the feeder room is reversed, the take-up reel in front of the cutting unit can be automatically stopped effectively. [Structure] A cutting section A equipped with a take-up reel 1, a cutting blade 2, a take-up auger 3 and the like is provided in front of a threshing section B in a feeder chamber C.
In the general-purpose combine in which the feeder 4 in the feeder chamber C can be driven in the forward / reverse direction, the cutting section A is provided from the forward / reverse drive side of the feeder 4.
The chain transmission unit 5 is mounted on the chain in the transmission path that is transmitted to the side.
A transmission sprocket 7 on the upper moving upper side is attached to an intermediate drive shaft 6 which is transmission-connected to the take-up reel via a one-way clutch 8
It is configured by fitting through.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a general-purpose combine harvester forward / reverse drive that can automatically stop the take-up reel in front of the harvester when the feeder in the feeder chamber is reversed.

[0002]

[Prior art]

 Conventionally, a mowing unit equipped with a take-up reel, a cutting blade, a take-up auger, etc. is continuously provided in front of a threshing unit via a feeder chamber, and the feeder in the feeder chamber is configured to be capable of forward and reverse driving. In a general-purpose combine, the transmission chain between the rotary shaft of the mowing part driven from the forward / reverse drive side of the feeder and the take-up reel may be loosened while pressing the tension rod during reverse rotation. There was a tension pulley that could be installed.

[0003]

[Problems to be solved by the device]

 However, in such a tension device, the tension rod is pushed during reverse rotation, so that the tension rod is easily deformed and damaged, and the chain easily comes off the sprocket and is easily damaged. Even if the grain culm that was taken in reverse was released, it would be discharged to the outside of the machine.Also, even if a reel clutch was installed in the transmission part of the take-in reel, that operation would always be performed when switching between forward and reverse rotation. It had a problem that it had to be troublesome and had a complicated structure.

[0004]

[Means for Solving the Problems]

 The present invention is designed to solve such a problem and automatically and properly stop the take-up reel at the time of reverse rotation.Therefore, a mowing machine equipped with a take-up reel, a cutting blade, a scraping auger, etc. In a general-purpose combine machine in which the parts are continuously connected in front of the threshing part via the feeder chamber and the feeder in the feeder chamber can be driven forward and backward, the power is transmitted from the forward and reverse driving side of the feeder to the mowing section side. A transmission sprocket on the same side as the upper side is fitted through a one-way clutch to an intermediate drive shaft that is mounted on the path and is drivingly connected to the take-up reel via a chain transmission section. Is.

[0005]

[Action]

 Therefore, when the feeder is driven in the normal direction, each part of the mowing section is also driven in the normal direction, and the one-way clutch is activated to rotate the drive sprocket and the intermediate drive shaft in the normal direction while the chain transmission section drives the take-up reel. Will also be driven in the normal direction, and if the feeder is driven in the reverse direction, the drive sprocket will also be rotated in the reverse direction, but the one-way clutch will not operate and the intermediate drive shaft will remain stopped. The chain transmission also remains safely stopped, and the take-in reel automatically stops.

[0006]

【Example】

 3 and 4 schematically show the general-purpose combine as a whole, in which a threshing section B equipped with a handling barrel 10 and the like is mounted on a machine supported by both crawlers 9 and extends in front of the threshing section B. At the front of the feeder chamber C to be installed, a cutting section A equipped with a take-up reel 1, a cutting blade 2, a scraping auger 3 and the like is continuously provided, and the cutting section A is vertically movable by a hydraulic cylinder 11. The cabin 13 of the operator's cab is equipped in front of the Glen tank 12 mounted on the lateral side of the threshing section B, and the discharge auger cylinder 14 is installed from above the engine section D mounted behind the Glen tank 12. It is extended and constructed in the same way as the conventional structure.

A chain conveyor type feeder 4 is installed in the feeder chamber C, and a rotary shaft portion 15 that pivotally supports the rear portion of the feeder chamber C and a communication provided in the rear frame 16 of the reaper portion A are connected to each other. The feeder 4 is mounted on a drum 18 that is mounted close to the mouth 17 and is mounted on a shaft. One end side of the rotary shaft portion 15 is connected to a forward / reverse rotation motor 19 via a sprocket chain 20 while being transmitted to the rotary shaft portion 15. A reaper drive sprocket 21 is fitted to the other end of the sword.

A passive transmission sprocket 24, on which a chain 23 extending from the sprocket 21 is hooked, is fitted to a reaping transmission shaft 22 which is laid laterally along the rear frame 16 of the reaper A. In the transmission case 25 installed laterally of the cutting section A, the cutting transmission shaft 22 and the drive shaft 26 of the scraping auger 3 are transmission-coupled by a sprocket chain 27, and the intermediate drive shaft 6 is connected. The drive shaft 28 of the cutting blade 2 is transmission-coupled by a sprocket chain, the intermediate drive shaft 6 and the intermediate shaft 6a are transmission-coupled by a chain transmission portion 5a of the sprocket chain, and the intermediate shaft 6a and the scraping reel are also connected. The drive shaft 30 is connected to the drive shaft 30 by the chain transmission portion 5 of the sprocket chain, and extends from the sprocket 31 fixed to the drive shaft 26. The transmission sprocket 7 on which the chain 32 is mounted is configured to be fitted on the intermediate drive shaft 6 via a one-way clutch 8.

Therefore, when the motor 19 rotates in the normal direction to drive the feeder 4 in the normal direction, each part of the reaper A is also driven in the normal direction, and the one-way clutch 8 operates to drive the drive sprocket 7 and the intermediate drive. While the shaft 6 rotates in the normal direction, the take-in reel 1 is also driven in the normal direction via the chain transmission parts 5a, 5, and when the motor 19 is rotated in the reverse direction and the feeder 4 is driven in the reverse direction, the drive sprocket 7 is also rotated. Although it will rotate in the reverse direction, the one-way clutch 8 will not operate, the intermediate drive shaft 6 will remain stopped, and the chain transmission parts 5a, 5 will also remain safely stopped, and the take-in reel 1 will automatically stop. To do.

[0010]

[Effect of device]

 As described above, according to the present invention, when the feeder 4 is driven in the normal direction, each part of the cutting section A is also driven in the normal direction, and the one-way clutch 8 is actuated to rotate the drive sprocket 7 and the intermediate drive shaft 6 in the normal direction. However, the take-in reel 1 is surely driven in the normal direction via the chain transmission unit 5, and when the feeder 4 is driven in the reverse direction and the cutting unit A is also driven in the reverse direction, the drive sprocket 7 is also rotated in the reverse direction. However, the one-way clutch 8 does not operate in the reverse rotation direction, the intermediate drive shaft 6 remains stopped, and the chain transmission unit 5 also stops safely, so that the take-up reel 1 automatically becomes effective. Since it is stopped, it has a feature that it can be suitably implemented with a simple structure.

[Brief description of drawings]

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

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

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

FIG. 4 is a schematic plan view of a general-purpose combine.

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

FIG. 6 is a front view showing a part of FIG. 5 in a cutaway manner.

[Explanation of symbols]

 1 Scraping reel 2 Cutting blade 3 Scraping auger A Mowing part B Threshing part C Feeder chamber 4 Feeder 5 Chain transmission part 6 Intermediate transmission shaft 7 Transmission sprocket 8 One-way clutch

Claims (1)

[Scope of utility model registration request] 1. A cutting section A equipped with a scraping reel 1, a cutting blade 2, a scraping auger 3 and the like is 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 combine in which 4 is driven in the forward and reverse directions, the take-up reel is axially mounted in a transmission path that is transmitted from the forward and reverse drive side of the feeder 4 to the mowing section A side, and a chain transmission section 5 is used. A reaper forward / reverse drive device comprising a transmission sprocket (7) on the upper side of an upper movement fitted to an intermediate drive shaft (6) that is transmission-coupled to (1) via a one-way clutch (8).