JP3225403B2 - Threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a threshing device provided in a combine or the like.

[0002]

[Prior art]

Conventionally, a threshing device has formed a grain culm transfer port on a side of a threshing room equipped with a handling drum, provided a feed chain along the grain culm transfer port, and provided a grain culm with the feed chain and a pinching rod. This is a configuration in which threshing is performed while nipping and transporting. 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, the feed chain and the side wall body covering the side of the threshing room are retracted from the side of the threshing room. Technologies that make it possible have been created. For example,
Japanese Utility Model Application Laid-Open No. 55-162533, Japanese Patent Application Laid-Open No. 61-12213, and Japanese Utility Model Application Laid-Open No. 1-167839 discloses a configuration in which a feed chain provided on the threshing room side is driven from the fuselage side via a transmission joint. A threshing device in which the outer feed chain is pivoted about a shaft provided at a predetermined distance from the transmission joint together with the side wall body so that the transmission coupling can be separated and retracted from the side of the threshing chamber. Is disclosed. The transmission joint is formed between the output shaft on the fuselage side and the drive sprocket of the feed chain engaged with the output shaft.

[0004]

[Problems to be solved by the invention]

As described above, in the conventional technology, the feed chain provided on the threshing room side is configured to be driven from the machine body side via the transmission joint, and the rotation center shaft for retracting the feed chain and the feed chain Is set at a position separated by a predetermined distance.

Therefore, when performing maintenance, the operator disengages the output shaft on the machine body side from the drive sprocket of the feed chain to separate the transmission joint, and thereafter, turns the feed chain together with the side wall body largely. Then, an operation of retracting from the side of the threshing room is performed. Therefore, 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 The aforementioned transmission coupling 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 fuselage 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, and the work efficiency is low.

[0006]

[Means for Solving the Problems]

The present invention uses the following technical means to solve the above-mentioned problems. That is, the dust collector 13
An input shaft 22 for driving the feed chain 3 is mounted on a transmission case 25 accommodating a driving gear mechanism, and the feed chain 3 is configured to be rotatable outwardly around the drive input shaft 22 side. A threshing apparatus characterized in that a locking member 25 is provided on the side of the support member which is opposite to the input shaft 22 and moves integrally with the feed chain 3.

[0007]

Effect of the Invention

Usually, in the threshing apparatus, maintenance such as cleaning of the threshing room is performed when troubles such as straw clogging occur during the threshing operation, or during storage after the threshing operation. In the threshing apparatus of the present invention, by retracting the feed chain 3 from the side of the threshing chamber 1, maintenance such as cleaning of the interior of the threshing chamber 1 can be performed. The feed chain 3 includes a transmission case 25 that accommodates a gear mechanism for driving the dust collector 13.
Since the input shaft 22 is pivoted around the input shaft 22, it is not necessary to separately connect the transmission coupling as in the conventional case. After maintenance, the feed chain 3 is rotated to the original position. Then, if it returns to the side part of the threshing room 1, it will return to the state in which the threshing operation can be easily performed.

[0008]

【The invention's effect】

As described above, in the present invention, maintenance such as cleaning of the inside of the threshing chamber 1 can be facilitated by retracting the feed chain 3 from the side of the threshing chamber 1. When the feed chain 3 is rotated, the feed chain 3 is configured to rotate around the input shaft 22 mounted on the transmission case 25 accommodating the gear mechanism for driving the dust collector 13, so that sufficient support strength is secured. When the maintenance is performed by rotating the feed chain 3 outward, unnecessary structures that hinder the operation are reduced, and the maintenance can be easily performed. Further, when the feed chain 3 is returned to the threshing room 1 side, the original threshing position is maintained by the locking member 25, so that the threshing work can be performed without weakening the support strength of the feed chain 3. Can be.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

In the combine shown in the figure, a box-shaped threshing machine frame 7 is used.
In the lower half, a sorting chamber 5 having a pressurized air tray 8, a sorting wind path, a swing sorting shelf 9 and the like is provided in the lower half, and a handling cylinder 10 is supported on the upper side by a handling cylinder shaft 11 in the front-rear direction. A threshing chamber 1 provided with a threshing net 4 extending from the back to the back, and a suction duster 13 which is located behind the threshing port 12 at the end of the threshing chamber 1 and suctions and discharges sorted dust and the like. A room 14 is provided.

[0010] At the front wall 15 of the threshing room 1, a grain culm supply port 16 is provided, and a rear wall 17 is provided.
The culm opening 12 is provided in the section. 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 cereal 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 put 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 lower threshing net 4 is opened from the opening below the culm transfer port 2 on the side.
The upper threshing net 4 is configured so that the upper side of the threshing chamber 1 can be opened and closed by opening a threshing cover 19 that can be opened and closed around a hinge 18 at 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. The side end of the threshing net 4 is open at the top, and the handle cylinder 10 is wide open at the top, so that the handle cylinder 10 can be seen.
An opening / closing side frame (side wall body) 6 is provided in the opening 21 so as to be freely opened and closed in a horizontal direction about a rear transmission shaft (drive input shaft) 22.

The opening / closing side frame 6 has an inner plate 23 on the inside, 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. or,
The feed chain 3 is rotatably stretched along the peripheral edge of the opening / closing side frame 6, the rear end of the feed chain 3 is hung over a drive sprocket 24 transmitted from the transmission shaft 22, and the upper side is connected to the grain culm transfer port 2. The opening / closing side frame 3 is provided with a hook 25 at the front end thereof so that the closed position can be fixed to the threshing machine frame 7.

A transmission shaft 22, which is an opening / closing center portion of the opening / closing side frame 6, is vertically supported by a transmission case 25 at the rear of the side wall 20, and opens and closes around the transmission shaft 22 with respect to the transmission case 25. The side frame 6 is provided rotatably. The transmission case 25 accommodates a gear mechanism transmitted from the fan shaft 26 of the suction / dust generator 13, interlocks the feed chain 3 from the drive sprocket 24 via the transmission shaft 22, and transmits the drive chain from another drive pulley 27. The first spiral shaft 29 and the culm cutter by interlocking with the belt 28
A cutter shaft 31 and the like 30 are provided so as to be transmitted. Reference numeral 32 denotes a pressurized wind shaft, reference numeral 33 denotes a second spiral shaft, and reference numeral 34 denotes a swing shaft of the swing sorting shelf 9.

At the side end of the threshing cover 19, there is provided a narrowing rod 35 that can run along the upper surface of the feed chain 3. With the threshing cover 19 closed, a grain culm is formed between the threshing cover 19 and the feed chain 3. Can be transported. Dust chamber 14
A culm cover 37 that covers the culm passage 36 is provided above the culm passage 36. At the time of threshing, each part is transmitted with the threshing cover 19 and the open / close side frame 6 closed. The feed chain 3 is transmitted by the rotation of the fan shaft 26 via the transmission shaft 22 and the like. When the root of the culm is supplied to the starting end of the feed chain 3, it is sandwiched between the strangulation rod 35, supplied from the supply port 16 into the threshing chamber 1, and transferred to the culm opening 12 to be handled. A threshing action by the body 10 is performed.

When cleaning the inside of the threshing room 1 or the sorting room 5, the threshing cover 19, the opening / closing side frame 6, etc. are opened, and especially the lower threshing net 4 of the threshing room 1 and the swinging of the sorting room 5 are performed. When cleaning the upper part of the sorting shelf 9 or 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 by the opening and closing side frame 6 can be largely opened. it can.

A mowing 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, and transports and supplies the culm harvested by the mowing device 38 to the starting end of the feed chain 3 of the threshing device. And The reaper 38 includes a clipper-shaped cutting blade 44, a weeding frame 45, and a reaper frame 43 that is supported on a transmission case 41 at the front of the vehicle body 40 so as to be vertically rotatable by a lift cylinder 42.
A transmission having a transmission mechanism of the raising device 46 inside by connecting between a support shaft 47 at a lower portion of the reaper frame 43 and a support shaft 48 at an upper portion of the raising device 46. The support 49 and the mower frame 43 are vertically rotated about a support shaft 50 near the cutting blade 44 in front of the support shaft 47 of the reaper frame 43, and a lower end portion of the raising device 46 is supported by the support shaft 51 in front. As a four-point link mechanism in a side view with the grass frame 45 or the like as a rotation side, a hydraulically extendable telescopic cylinder 52 provided between the reaper frame 43 and the transmission support 49,
The weeding frame 45 and the raising device 46 are connected to the support shafts 50 and 4 at the bottom.
It can be turned up and down around 7. The solenoid control valve 54 in the hydraulic circuit 53 of the telescopic cylinder 52 has a configuration in which the solenoid can be interlocked by operating the operation lever 56 of the control device 55. 57 is a switch for the solenoid, 58 is a hydraulic pump, and 59 is a tank port.

Reference numeral 60 denotes a scraping device provided at the front end of the reaper frame 43 so as to face the upper portion of the cutting blade 44, and reference numeral 61 denotes a squeezing position of the grain stem cut by the cutting blade 44 by the scraping device 60. And 62, a transfer device for transferring the grain stalk inherited from the transfer device 61 to the start end of the feed chain 3 of the threshing device, and both are mounted on the reaper frame 43. Have been. In addition, the transfer device 62 has a configuration in which the position of the front end portion is changed up and down to change the pinching position of the cereal stem and the supply depth to the threshing room 1 can be changed and adjusted.

Such a reaping device 38 is of a multi-row type, and a plurality of weeding frames 45, a raising device 46, a raking device 60, and the like are arranged on the left and right, and each of the support shafts 47, 48, 50, etc. Through the entire left and right width, the left and right ends of the support shafts 47 and 48 are connected by a transmission support 49. In addition, the weeding frame 45 is 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 mowing device 38 can be moved up and down by the expansion and contraction of the lift cylinder 42, and the weeding frame 45 and 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 the telescopic cylinder 52. . When the weeding frame 45 and the pulling device 46 are raised at a low row, etc., the cutting blade 44 is simultaneously retracted by the four-point link mechanism.
44 can be cut as close to the ridge 63 as possible without being disturbed by the tip of the weeding frame 45, 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]

 1 threshing room 3 feed chain 6 side wall 22 drive input shaft 25 locking member

Claims (1)

(57) [Claims] An input shaft for driving a feed chain is mounted on a transmission case accommodating a gear mechanism for driving a dust collector, and the feed chain is mounted around the drive input shaft. A threshing apparatus characterized in that it is configured to be rotatable outward, and a locking member 25 is provided on a support member side opposite to the input shaft 22 and moving integrally with the feed chain 3.