JPH06327338A - Device for transporting stem culm of thresher - Google Patents

Abstract

PURPOSE:To greatly improve workability in cleaning, inspection, servicing, etc., in a threshing chamber. CONSTITUTION:A feed chain 14 horizontally attached to the side of a threshing chamber 6 is constituted to retreat rotatably upward around the driving center of a driving sprocket 19 positioned ahead a front end face 6a of the threshing chamber 6 as a supporting point. In a treating attitude, the feed chain 14 is stood ahead the front end face 6a of the threshing chamber 6 to open the whole side of the threshing chamber 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stem-culm conveying device for a thresher, which is mainly equipped with a combine.

[0002]

BACKGROUND OF THE INVENTION Generally,
In this seed threshing machine, a feed chain for sandwiching and transporting stalks with a trapping rail is installed laterally on the side of the handling room.However, the feeding chain interferes with cleaning, inspection, and maintenance of the handling room. There is an inconvenience that it hinders work. Therefore, as disclosed in Japanese Patent Laid-Open No. 63-84419, there has been proposed a feed chain configured such that it can be retracted and rotated upward so that the side surface of the handling chamber can be opened.
However, since this method rotates the transport end portion of the feed chain with the rotation fulcrum shaft provided at the rear end of the side surface of the handling chamber as a fulcrum, even if the temporary feed chain is retracted and rotated upward. However, it is not possible to open the entire side surface of the handling room, and as a result, the feed chain still gets in the way when cleaning, inspecting and maintaining the handling room.
The reality is that workability is reduced.

[0003]

SUMMARY OF THE INVENTION The present invention was devised with the object of providing a stalk-carrying device for a thresher capable of eliminating these drawbacks in view of the above circumstances. In a thresher that has a feed chain that sandwiches and conveys stalks between the stalks and rails on the side of the handling chamber, the feeding start end of the feed chain is fed by the feed chain rather than the stalk feeding port of the handling chamber. In order to evacuate to the start end side, it is configured so that it can be retracted and rotated upward with the transfer start end side position as a fulcrum relative to the stem-culm supply port of the handling chamber, and the entire side surface of the handling chamber is opened in the standing and retracting posture. To do.
With this configuration, the present invention can significantly improve workability in cleaning, inspection, maintenance, etc. of the handling room.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a combine, wherein the combine 1 comprises a mowing section 2 for cutting stems, a threshing section 3 for threshing cut stems and selecting threshed grains, and a threshing-treated waste. The post-processing unit 4 for discharging the culm and the crawler-type running unit 5 are provided, and the basic configurations of these units are the same as in the related art.

Reference numeral 6 denotes a handling chamber provided in the upper front half of the threshing unit 3, and in the handling chamber 6, the stalks supplied from the stalk-feeding port 6b of the front end face 6a are accommodated in the handling chamber. The threshing process is performed based on the rotating threshing action of the handling cylinder 7, and the threshed grains are allowed to leak into the sorting chamber 9 through the receiving net 8 which can be slid out to the left side. There is. Further, the upper surface and the upper half of the left side surface of the handling chamber 6 are always covered by the cover 10 which is bent in an L shape, but when cleaning, inspecting or maintaining the inside of the handling chamber 6, Cover 10
The upper part of the handling chamber 6 and the upper half part of the left side face can be opened by retracting and rotating upward using the right end position of the upper face of the handling chamber 6 as a fulcrum. Incidentally, 11
Is a detachable first side plate that covers the lower half of the left side of the handling chamber 6, 1
Reference numeral 2 is a second side plate integrally fixed to the receiving net 8 so as to cover the lower end portion of the left side surface of the handling chamber 6.

Further, 13 is a pinch rail, which is laterally installed on the left side surface of the handling chamber 6 so as to closely face and oppose above a feed chain 14, which will be described later. In the example, since the sandwiching rail 13 is integrally provided on the side surface of the cover 10, the sandwiching rail 13 is provided.
With the retraction rotation of the cover 10.
It is possible to retreat from the facing position to the upper right side.

The feed chain 14 clamps the stem culm conveyed to the end position of the lifting conveyer (handle depth adjusting device) 15 provided in the pretreatment section 2 between the feed rod 13 and the clamp rail 13. While carrying out lateral transport along the side surface of the handling room 6, the culms that have been threshed by the handling room 6 in the lateral carrying process are continued to the start end position of the straw chain 16 arranged behind the handling room 6. It is provided laterally on the side surface of the handling chamber 6 so as to be transported. That is, the feed chain 14 is suspended between the driven sprockets 17 and 18 located at the transport start end and the transport end, and the drive sprocket 19 located below the front driven sprockets 17 rearward and in front of the front end surface 6 a of the handling chamber 6. When the drive sprocket 19 is driven, the transport operation is performed. 20 is a tension pulley located near the drive sprocket 19 in order to press the feed chain 14 elastically, and 21 is a tension pulley 2
Reference numeral 0 denotes a swing arm for swinging and supporting 0 around the drive center of the drive sprocket 19, and reference numeral 22 denotes an ammunition for biasing the tension arm 21 toward the feed chain 14 side.

Reference numeral 23 denotes a guide rail in which the driven sprockets 17 and 18 are assembled at both front and rear ends thereof, and the guide rail 23 is provided between the front and rear driven sprockets 17 and 18 within the feeding action side of the feed chain 14. The rotary frame 26 is for slidingly guiding the peripheral portion, and is further connected to the support frame 24 and the support plate 25 to form a frame in the shape of an acute triangle.
Is configured. That is, the guide rail 23
The rear end portion of the feed chain 14 is integrally connected to the rear end portion of the support frame 24 along the non-conveyance acting side of the feed chain 14,
The middle portion of the guide rail 23 is integrally connected to the upper end portion of the support plate 25, and the front end portion of the support frame 24 and the lower end portion of the support plate 25 are integrally connected to each other.

On the other hand, 27 is a transmission case that is fixedly installed at the position of the front end surface of the sorting chamber 9, and the transmission case 27
Is the transmission belt 2 from the Kara shaft 28 arranged in the sorting chamber 9.
Power is input via 9 and the input power is transmitted to the drive shaft 30 of the drive sprocket 19. The tubular portion 27a of the transmission case 27 rotatably supports the drive shaft 30. A boss cylinder portion 31a of a connecting member 31 integrally provided on the rotating frame 26 is rotatably fitted to the boss. That is, the feed chain 14 assembled to the rotating frame 26 is located above the front of the feed chain 14 with the drive center of the drive sprocket 19 located behind the feed start end of the feed chain 14 and in front of the front end surface 6a of the handling chamber 6 as a fulcrum. Although the feed chain 14 can be rotated to the standing retreat posture, the fed chain 14 that is standing up and retracted is located in front of the front end surface portion 6a of the handling chamber 6 so that the entire side surface of the handling chamber 6 can be opened. Further, in the feed chain 14, the transport end side retracts and rotates upward, and the transport start end side retracts and rotates downward, thereby standing up and retracting. Therefore, the uppermost height in the standing retracting position is kept as low as possible. However, since the conveyance start end side of the feed chain 14 rotates in a direction away from the conveyance end portion of the lifting conveyance body 15 located near the upper side, interference with the lifting conveyance body 15 can be avoided. It has become. In this embodiment, the feed chain 14 is rotated to a position where the center of gravity shifts to the front side, and the feed chain 14 is brought into contact with a stopper (not shown) to hold the feed chain 14 in a standing and retracted posture. It is also possible to hold the position.

Further, reference numeral 32 denotes a pair of left and right roll-in prevention plates provided at the conveying end portion of the feed chain 14,
The entanglement prevention plate 32 is integrally opposed to the rear end portion of the rotating frame 26 in a posture of sandwiching the rear driven sprocket 18. The culm conveyed to the end of the feed chain 14 is further linearly slid and guided rearward to prevent the culm from being caught in the rear driven sprocket 18. The culm conveyed to the end of the can be reliably delivered to the straw chain 16, but at the tip of the entanglement prevention plate 32 extending to the rear of the rear driven sprocket 18, an extension of a machine frame reinforcing frame 33 described later is provided. An engagement groove 32a is formed which engages with 33a from above and holds the feed chain 14 in a predetermined horizontal posture. That is, the machine frame reinforcing frame 33 is
The bracket portion 33b integrally fixed to the machine frame 34, the bracket portion 33b and the U-shaped frame portion 33c integrally fixed to the rear end surface portion of the handling chamber 6, the U-shaped frame portion 3
It is composed of a lateral frame portion 33d, one end of which is fixed to 3c, and supports members such as the body cover 35, but the extension portion 33a is formed by simply extending the bracket portion 33b outward. It is getting done.

Furthermore, 36 is the entrainment prevention plate 32.
A locking device for the feed chain 14 provided at the tip of the locking device 36, wherein the locking device 36 rotates between a posture for locking the extension 33a engaged with the engagement groove 32a and a posture for releasing the lock. The hook plate 37, which can be transformed, and the ammunition 38, which constantly urges the hook plate 37 toward the locking position, have a lower surface inclined at the locking portion 37a. When the feed chain 14 is lowered from above, the feed chain 14 is automatically retracted to the non-locking posture based on the contact with the extension portion 33a, and then is extended to the locking posture. The portion 33 is adapted to be locked. Incidentally, 37b is a lever portion for unlocking the hook plate 37.

By the way, the rear driven sprocket 18 is
Between the and the engaging groove 32a, there is formed a space S having a predetermined front-rear space and opening in the vertical direction. That is,
Even if there is a culm that cannot prevent the wrapping by the wrapping prevention plate 32, the passage space S for the wrapping culm is secured, so the wrapping culm is the rear driven sprocket 1
It is possible to eliminate the inconvenience of blocking the feeding operation of the feed chain 14 by clogging between 8 and the engaging groove 32a (extension part 33a).

In the embodiment of the present invention constructed as described above, when cleaning, inspection, maintenance, etc. of the inside of the handling room 6 are performed,
After opening the cover 10, the feed chain 14 is rotated upward while operating the hook plate 37 located at the conveyance end portion of the feed chain 14 in the unlocked posture. However, the feed chain 14 rotated upward is operated. 14
Rotates about the drive center of the drive sprocket 19 located in front of the front end surface 6a of the handling chamber 6, so that the feed chain 14 stands up and retracts in front of the front end surface 6a of the handling chamber 6 and retreats. Will open the entire side of. Therefore, the feed chain 14 with the side surface of the handling room 6 as a fulcrum.
Like the one that retracts and rotates the feed chamber 14, a part of the feed chain 14 that is in the retracted posture does not still remain on the side surface of the handling room 6, and as a result, the feed chain 14 is cleaned, inspected, and maintained in the handling room 6. It is possible to eliminate the inconvenience that disturbs the user and significantly improve the workability.

In addition, since the rotation fulcrum is provided in front of the front end surface 6a of the handling chamber 6, the position of the rotation fulcrum is set rearward of the feeding start end of the feed chain 14, so that the evacuation rotation is performed. In the above, the feeding start end portion of the feed chain 14 is rotated downward so as to be separated from the lifting transport body 15 located in the vicinity of the upper portion, and as a result, the disadvantage that the feeding chain 14 interferes with the lifting transport body 15 is eliminated. can do.

[0015]

In summary, since the present invention is constructed as described above, the feed chain laterally provided on the side surface of the handling room is retracted and rotated upward to open the side surface of the handling room. The feed chain is retracted and rotated upward with the position at the conveyance start end side as a fulcrum relative to the stem-culm supply port of the handling chamber. In other words, since the feed chain stands up and retracts to the conveying start end side with respect to the stem-culm supply port of the handling room to open the entire side surface of the handling room, the feeding chain is retracted with the pivot point provided on the side surface of the handling room as a fulcrum. Even if it is in a retracted position like a rotating one, a part of the feed chain is not located on the side surface of the handling room. As a result,
It is possible to eliminate all the inconveniences of the feed chain during cleaning, inspection, maintenance, etc. of the handling room and significantly improve workability.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a side view of a threshing unit.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is an enlarged side view of the main part of the same.

FIG. 6 is a side view showing a state in which the feed chain is retracted and rotated.

[Explanation of symbols]

 1 combine 2 pre-treatment section 3 threshing section 6 handling room 13 sandwiching rail 14 feed chain 17 front driven sprocket 18 rear driven sprocket 19 drive sprocket 26 rotating frame 27 transmission case 30 drive shaft 31 connecting member 32 winding prevention plate 33 Frame Reinforcement frame 36 Locking device

Front page continued (72) Inventor Tsuyoshi Sugai 667 Izaya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Agricultural Machinery Co., Ltd. (72) Inventor Hidemi Hakada 667 Izamiya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Mitsubishi Agricultural Machinery Co., Ltd. Agricultural Machinery Co., Ltd. (72) Inventor Fukuyori Kounen 667 Isuyacho, Higashi Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Inside Mitsubishi Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A thresher in which a feed chain for sandwiching and transporting stalks between a stalk and a picking rail is laterally provided on the side surface of the handling chamber, and the feeding start end portion of the feed chain is fed by the stalk to the handling chamber. In order to stand up and retreat to the start side of the transfer rather than the mouth, it is configured so that it can be rotated upward with the position of the start end side of the transfer chamber as the fulcrum, and the entire side surface of the handle is opened in the upright retracted position. A stem-culm conveying device for a thresher, which is characterized by: