JPH1094320A - Threshing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance work efficiency by enabling the evasion of a feed chain and a side wall body to be executed from the side part of a threshing room, facilitating maintenance inside the threshing room and also improving the evasion operability of the feed chain. SOLUTION: The feed chain 3 arranged in the side part of the threshing room is constituted so as to be evasion possible fromthe side part of the threshing room by rotation with its driving input shaft 22 as a center. In addition to it, the side wall body covering the side part of the threshing room is constituted so as to be open/close possible. By the configuration, an opening part is formed in the side part of the threshing room by the evasion of the feed chain 3 and the opening of the side wall body 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus provided in a combine or the like.

[0002]

2. Description of the Related Art Conventionally, a threshing apparatus has a grain culm transfer port formed at a side of a threshing room in which a handling drum is provided, and a feed chain is provided along the grain culm transfer port. This is a configuration in which threshing is performed while pinching and transporting the cereal stem with a pinching rod. The feed chain has an endless chain wound around a driving sprocket and a floating roller.

In order to facilitate the maintenance of the sorting room and the sorting room provided below the handling room,
A technique has been created in which the feed chain and the side wall body covering the side of the threshing chamber can be retracted from the side of the threshing chamber. For example, in Japanese Utility Model Laid-Open No. 55-162533, Japanese Patent Laid-Open No. 61-12213 and Japanese Utility Model Laid-Open No. 1-167839, a feed chain provided in a threshing room side is driven from a machine side via a transmission joint. By rotating the feed chain together with the side wall body around an axis provided at a predetermined distance from the transmission coupling, the transmission coupling can be separated and retracted from the side of the threshing room. A configured threshing device is disclosed. The transmission coupling is formed between the output shaft on the fuselage side and the drive sprocket of the feed chain engaged with the output shaft.

[0004]

As described above, in the prior art, the feed chain provided on the side of the threshing room is configured to be driven from the machine body side via a transmission joint. -The rotation center shaft for retracting the chain and the transmission joint are set at positions separated by a predetermined distance.

Therefore, when performing maintenance, an operator releases the engagement between the output shaft on the machine body side and the drive sprocket of the feed chain to separate the transmission joint, and thereafter the feed chain and the side wall body are separated. An operation of retreating from the side of the threshing chamber by rotating it greatly is performed. Then
When the threshing operation is returned to a state in which the threshing operation is possible after the maintenance is completed, the operator rotates the feed chain and the side wall body in a direction approaching the side of the threshing chamber, and furthermore, Transmission couplings must be connected. However,
In this state, since the power transmission joint and the rotation center axis of the feed chain are separated from each other, the load of the feed chain and the side wall body is concentrated on the rotation center axis, and the load is bent or rotated. The relative position between the output shaft on the machine body side and the drive sprocket of the feed chain is shifted due to the play of the moving center shaft. Therefore, in order to connect the transmission joint in such a displaced state, the operator has to lift the feed chain by hand, and the operability is extremely poor, resulting in low work efficiency.

[0006]

The present invention uses the following technical means in order to solve the above-mentioned problems. That is, the feed chain 3 disposed on the side of the threshing chamber 1 is configured to be retractable from the side of the threshing chamber 1 by rotating about the drive input shaft 22 of the feed chain 3, and the threshing is performed. The side wall 6 covering the side of the chamber 1 is configured to be openable and closable, so that the opening 21 is formed in the side of the threshing chamber 1 by retracting the feed chain 3 and opening the side wall 6. It is a threshing device characterized by this.

[0007] Usually, in the threshing apparatus, maintenance such as cleaning of the threshing chamber is performed when trouble such as clogging of straw occurs during the threshing operation or during storage after the threshing operation. In the threshing apparatus of the present invention, an opening 21 is formed in the side of the threshing chamber 1 by retracting the feed chain 3 and opening the side wall body 6, and through this opening 21,
The threshing room 1 is ready for maintenance such as cleaning.

Since the feed chain 3 rotates around the drive input shaft 22 of the feed chain 3,
Even if the connection work of the transmission coupling is not separately performed as in the prior art, it is easy if the side wall 6 is closed and the feed chain 3 is rotated to return to the side of the threshing chamber 1 after the maintenance is completed. Return to the state where threshing work is possible.

[0009]

As described above, in the present invention, the opening 21 is formed on the side of the threshing chamber 1 by the retraction of the feed chain 3 and the opening of the side wall 6, and through this opening 21. In addition, maintenance such as cleaning of the interior of the threshing room 1 can be easily performed. And while closing the side wall body 6,
If the feed chain 3 is rotated and returned to the side of the threshing chamber 1, it can be easily returned to a state in which threshing can be performed.
Thereby, work efficiency can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described by exemplifying an embodiment in a combine. First, in the combine shown in the figure, a box-shaped threshing machine frame 7 is provided with a sorting chamber 5 having a pressurized air tang 8, a sorting wind path, a swing sorting shelf 9, and the like in the lower half, and a handling drum 10 on the upper side. A threshing chamber 1 which is provided with a threshing net 4 extending from the lower side to the back while being supported by the handle cylinder shaft 11 in the front-rear direction, and is provided with a sorting and dust removal rear of the threshing chamber 12 from the threshing chamber 1 at the end. And a dust exhaust chamber 14 having a suction exhaust device 13 for sucking and discharging air.

At the front wall 15 of the threshing room 1, a stalk supply port 16 is provided.
Is provided, and the culm opening 12 is provided on the rear wall 17. The grain culm supply port 16 and the culm opening 12 are opened above the lower inner peripheral surface of the threshing net 4, and the culm supplied from the supply port 16 is fed to the culm opening 12 along the upper surface of the threshing net 4. It is configured to guide the transfer. The threshing net 4 can be moved in and out along a net frame guide provided along the supply port 16 and the lower part of the culm opening 12 of the threshing machine frame 7. The threshing net 4 on the upper side of the threshing room 1 can be opened and closed from the lower opening by opening a freely openable threshing cover 19 around the hinge 18 on the back.

An opening 21 is formed in the side wall 20 between the threshing room 1 and the sorting room 5, and the swinging sorting shelf 9 in the sorting room 5 is seen below the opening 21. A side end of the threshing net 4 is viewed from the top, and the handle drum 10 is widely opened from the top. The opening / closing side frame (side wall body) 6 is provided at the opening 21 with a rear transmission shaft (drive input shaft). It is provided so as to be freely opened and closed in the horizontal direction about the center 22.

The opening / closing side frame 6 has an inner plate 23 on the inner side, and is brought into contact with a side end of the threshing net 4 to form one threshing room on the threshing net 4 and five lower sorting chambers. Side can be closed. The feed chain 3 is rotatably stretched along the peripheral edge of the opening / closing side frame 6, and the rear end is wrapped around a drive sprocket 24 transmitted from the transmission shaft 22, and the upper side is grain culm transfer. The opening / closing side frame 3 is configured to be rotatable along the opening 2, and a hook F is provided at the front end of the opening / closing side frame 3 so that the closed position can be fixed to the threshing machine frame 7.

A transmission shaft 22 which is the center of the opening and closing of the opening and closing side frame 6
Is vertically supported on a transmission case 25 at the rear portion of the side wall 20, and the opening / closing side frame 6 is provided rotatably around the transmission shaft 22 with respect to the transmission case 25. . The transmission case 25 is provided with a fan shaft 26 of the suction / dust generator 13.
A gear mechanism transmitted from the drive shaft is accommodated, the feed chain 3 is interlocked with the drive sprocket 24 via the transmission shaft 22, and the helical shaft 29 and the discharge shaft are interlocked with the belt 28 from the other drive pulley 27. It is provided so as to transmit the cutter shaft 31 of the culm cutter 30 and the like.
Is a second spiral shaft, and 34 is a swing shaft of the swing sorting shelf 9.

At the side end of the threshing cover 19, a filter is provided.
A pinching rod 35 is provided along the upper surface of the chain 3, and in a state where the threshing cover 19 is closed, the stem portion of the culm can be clamped and transported with the feed chain 3. . Above the dust chamber 14, a culm cover 37 for covering the culm passage 36 is provided. When threshing, threshing cover-19
Each part is transmitted with the opening / closing side frame 6 closed. Fee
The chain 3 is transmitted by the rotation of the fan shaft 26 via the transmission shaft 22 and the like. When the root portion of the cereal stem is supplied to the starting end of the feed chain 3, the culm is clamped between the clamping rod 35, supplied from the supply port 16 into the threshing chamber 1, and transferred to the culm opening 12 side. The threshing action by the handling cylinder 10 is performed.

When the inside of the threshing room 1 or the sorting room 5 is to be cleaned, the threshing cover 19, the opening / closing side frame 6 and the like are opened. When cleaning the upper part of the dynamic sorting shelf 9 and attaching and detaching the lower sorting net 4, it can be performed from the open opening 21 of the opening / closing side frame 6. Since the opening and closing rotation of the feed chain 3 is performed around the transmission shaft 22 from the transmission case 25 on the culm side, the opening and closing operation is easy and the opening of the opening and closing side frame 6 is largely opened. can do.

A harvesting device 38 is provided in front of a vehicle body 40 having a traveling device 39 so as to be able to move up and down freely. Grain stalks harvested by the harvesting device 38 are transferred and supplied to the starting end of the feed chain 3 of the threshing device. It has a configuration. This reaper 3
Reference numeral 8 denotes a mower frame 43 which is supported on a transmission case 41 at the front of the vehicle body 40 by a lift cylinder 42 so as to be rotatable up and down, a cutting blade 44 in the form of a clipper, a weeding frame 45, and a grain stalk raising device 4.
A transmission support 49 having a transmission mechanism for connecting the support shaft 47 below the reaper frame 43 and the support shaft 48 above the raising device 46, and having a transmission mechanism for the raising device 46 therein; The support shaft 5 near the cutting blade 44 in front of the support shaft 47 of the reaper frame 43
It is pivoted up and down around 0, and the raising device 4
A hydraulically extendable telescopic cylinder provided between the mower frame 43 and the transmission support 49 as a four-point link mechanism in a side view with the weeding frame 45 or the like supporting the lower end of the shaft 6 on the support shaft 51 and the like as a rotation side. By means of 52, the weeding frame 45, the raising device 46 and the like can be turned up and down around the support shafts 50 and 47 at the bottom side. The solenoid control valve 54 in the hydraulic circuit 53 of the telescopic cylinder 52 is operated by an operation lever of a control device 55.
The solenoid can be interlocked by the operation of 56.
57 is a switch of the solenoid, 58 is a hydraulic pump,
Numeral 59 is a tank port.

Reference numeral 60 denotes a raking device provided at the front end of the reaper frame 43 so as to face the upper side of the cutting blade 44, and 61 denotes a raking position of the grain stem cut by the cutting blade 44 by the raking device 60. A collecting device 62 for collecting the culm from the collecting device 61 to the rear end of the feed chain 3 of the threshing device.
It is attached to. In addition, the transfer device 62 has a configuration in which the front end portion is vertically moved to change the pinching position of the grain culm, and the supply depth to the threshing room 1 can be changed and adjusted.

Such a cutting device 38 is of a multi-row cutting type, and includes a weeding frame 45, a raising device 46, and a raking device 60.
The support shafts 47, 48, 50, etc., pass through the entire left and right width, and the left and right ends of the support shafts 47 and 48 are connected by a transmission support 49. Weeding frame 45
Are pivotally supported by a support shaft 51 for each raising device 46 so as to open a grain stem raising guide portion of each cutting line.

The reaper 38 can be raised and lowered by the expansion and contraction of the lift cylinder 42.
The grass frame 45, the raising device 46 and the like can be moved up and down with respect to the reaper frame 43 by the expansion and contraction of 2. When the weeding frame 45 and the raising device 46 are raised at a low ridge or the like, the cutting blade 44 is simultaneously retracted by the four-point link mechanism with respect to the cutting blade 44. Without being disturbed, etc., cutting can be performed as close to the ridge 63 as possible, and the uncut portion at the ridge of the grain stalk can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a threshing apparatus according to an embodiment of the present invention.

FIG. 2 is a front sectional view of the threshing apparatus according to the embodiment of the present invention.

FIG. 3 is a side view of the threshing apparatus according to the embodiment of the present invention.

FIG. 4 is a plan view for explaining a transmission mechanism of a part of the threshing apparatus according to the embodiment of the present invention.

FIG. 5 is a side view of a front portion of the combine according to the embodiment of the present invention.

FIG. 6 is a plan view of a combine front part according to the embodiment of the present invention.

FIG. 7 is an explanatory plan view of a transmission mechanism of a part of the combine according to the embodiment of the present invention.

FIG. 8 is a hydraulic circuit diagram of a part of the combine according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Threshing room 3 Feed chain 6 Side wall body 22 Drive input shaft

Claims (1)

[Claims] A feed chain disposed on a side of the threshing room is configured to be retractable from a side of the threshing room by rotating the feed chain around a drive input shaft of the feed chain. An opening 21 is formed in the side of the threshing room 1 by opening and closing the side wall 6 covering the side of the threshing room 1 by retracting the feed chain 3 and opening the side wall 6. Threshing apparatus characterized by the following.