JP3186694B2 - Grain stalk feeder for combine threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain culm feeding apparatus for a combine threshing apparatus for threshing by supplying the entire grain culm, which has been cut short by high cutting, such as cutting along a ridge, to a threshing apparatus. About.

[0002]

2. Description of the Related Art A grain culm holding / conveying device is provided along a handling room of a threshing device, and a front portion of a rail frame of the grain culm holding / conveying device is divided into a rear portion so as to be rotatable up and down. Then, the front part of the rail frame and the rail piece are integrally rotated upward at the rear fulcrum and retracted from the feed chain to release the pinch, and the entire grain culm is supplied to the handling room of the threshing device to leave unhandled portions. A combine for threshing in the absence of a grain is described in JP-A-55-19019.

[0003]

The above-mentioned conventional one can prevent the unhandled portion even if it is a short culm as much as possible.
The switching of the rail piece to the release state is manually performed, and the operation is troublesome. In addition, the rail piece that rotates integrally with the front rail frame must be separated from the fixed rail piece on the rear side, and when the front and rear rail pieces move up and down exceptionally in the sandwiched state, they are connected. In this case, a step is generated in the portion, and the conveyance is easily disturbed. Further, a safety cover needs to be provided above the rail frame and the rail. However, since the rail frame and the rail piece rotate largely upward integrally, the safety cover cannot be provided. Further, a complicated and long cover is required to provide the cover.

[0004]

According to the present invention, a threshing device is mounted on a machine having a traveling device, a pretreatment device is provided in front of the threshing device, and a lower feed chain and an opposing and close proximity to the feed chain are provided. In a combine in which a grain stalk clamping and conveying device for clamping and transporting a grain stalk by an upper clamping rail is arranged along a handle of the threshing device, the clamping rail is configured by connecting a plurality of rail pieces, An upward hanging rod is provided on the rail piece, and each rail piece is elastically supported on the rail frame via the hanging rod and the spring so as to be able to move up and down, and an actuator connected to the hanging rod is provided,
A state where the suspension rod is moved up in the axial direction by the operation of the actuator to support the rail piece on the rail frame.
By moving the rail piece upward against the spring in a state, the rail piece is switched to a release state in which the rail piece is separated from the feed chain at a lower portion of the rail frame , and the actuator is connected to a plurality of suspension rods. Then, the above-mentioned problem is solved by moving the plurality of suspension rods in the axial direction by operating the actuator and moving the rail pieces in parallel in the upward direction.

[0005]

The present invention has the following effects. Switch the rail pieces to the release state where they are separated from the feed chain
Even if the grain stalk is cut short by high cutting due to cutting along the ridge by the combine, etc. Threshing can be performed, and harvesting along the levee by the combine becomes possible.
Instead of rotating the rail frame and the rail piece upward as in the past, the rail piece is moved upward by moving the suspension rod of the rail piece upward with the actuator, so that the rail piece and the feed chain do not move together. Since the spacing was increased, the rail pieces were connected to the feed chain while the rail pieces were connected without separating the rail pieces .
The state can be switched to the pinched state released from the state . Therefore, even in the sandwiching state where the rail piece and the feed chain are close to each other, each rail piece is in a connected state, and there is almost no vertical displacement at the connecting portion of each rail piece, so that it is possible to satisfactorily sandwich and transport. Each rail piece is supported on the rail frame via a suspension rod and spring so that it can be raised and lowered,
The rail is supported on the rail frame by moving the suspension rod upward in the axial direction with the actuator.
And move it upwards against the spring to move the rail
Leaving the rail piece from the feed chain in the lower portion of the frame
The rails are switched to the pinched release state, so that the rail pieces can be stably stable without greatly changing the support structure.
While it is possible to switch to the pinch release state, in the normal pinch and transport state where the rail piece is close to the feed chain, the pressing force applied to the rail piece from the culm conveyed and pinched by the rail frame via the spring is ensured Can be received. Furthermore, instead of rotating the rail frame and the rail piece integrally upward as in the prior art,
Since the rail frame is fixed and only the rail piece is moved to the above-mentioned pinching release state , the amount of upward projection in the pinch releasing state is small, and the rail frame and the pinching rail are covered with a cover. When covering, the cover can be made compact. In addition, when the plurality of suspension rods are simultaneously moved upward by the actuator and the rail pieces are moved in parallel in the upward direction, the rail pieces and the feed chain are further improved while the movement amount of the rail pieces is small. What
It can be in a pinched release state .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. A self-removal threshing device 2 is mounted on one side of a machine having a traveling device 1 and an operation is performed on the other side. Section, a grain tank and an engine, and the threshing apparatus 2
A grain stalk nipping and transporting device 6 comprising a feed chain 3 provided below and an upper nipping rail 5 provided to be opposed to and close to the feed chain 3 is provided along the handle. In front of the threshing device 2, a cutting device 12 including a cutting blade 7, a weeding body 8, a cereal stem raising member 9, a scraping wheel 10, and a stalk scraping band 11, and an ear-side carrier 13 and stock carrier 1
4 and a cereal culm conveying device 16 which is tilted up and down about a rear upper shaft 15 to adjust the handling depth, and is provided with a cereal culm conveying device (not shown). 16 is provided with a culm length detection sensor like a conventional one, and is configured so that the handling depth can be automatically adjusted based on the detection result.

[0007] The clamping rail 5 of the grain stem clamping and conveying device 6 is constituted by connecting a plurality of rail pieces 5a, 5b, 5c, and the two rail pieces 5a, 5b from the front end are connected to the suspension rod 18, 18 penetrates through the suspension plate 19, and the suspension plate 19 is connected to the hydraulic cylinder 21 (actuator) mounted on the support arm 20, and all the rail pieces 5a, 5b, 5c
Are suspended by a rail frame 22 via a spring so as to be able to move up and down. In addition, the hydraulic cylinder 21 is mounted on the rail frame 2 above the clamping rail 5.
2 is located above. On the shaft 15 or the frame 23, a potentiometer 25 interlocked with the operation of the lift cylinder 17 for elevating and lowering the pretreatment device is mounted via a rod 24, and the cutting height is detected by the potentiometer 25. is there.

The cutting and threshing operation by the combiner described above will be described. A manual high cutting control switch provided in an operation unit, a handling depth control switch of an automatic handling depth control circuit, and an automatic cutting height control including the potentiometer 25 are provided. Turn on the cutting height control switches of the circuit and set the threshing clutch lever to the on position to turn on the self-release switch.
When the pre-processing clutch lever is set to the ON position, the pre-processing lever switch is turned ON, and when the traveling speed change lever is set to a desired speed position, the traveling speed lever potentiometer detects it and the detected values thereof are calculated by the microcomputer. Is input to

In places other than the vicinity of the levee, the pretreatment device is advanced with the herbaceous body 8... Approaching the ground. At this time, since the potentiometer 25 emits an L signal, In 16, the handling depth is automatically controlled based on the detection value of the culm length detector, the hydraulic cylinder 21 is extended, and the spring brings the rail pieces 5 a, 5 b closer to the feed chain 3 to be in a normal nipping and conveying posture. So that normal mowing and threshing can be performed. Then
When approaching the ridge, operating the lift cylinder 17 to raise the pretreatment device to approximately the same height as the top surface of the ridge,
The potentiometer 25 emits an H signal in a state where the manual high cutting control switch, the handling depth control switch, the cutting height control switch, the self-releasing operation switch, and the pre-processing lever switch provided in the operation unit are each ON. The cereal culm transport device 16 rapidly descends and turns to the deepest handling position regardless of the detection result of the culm length detector, and the short culm harvested at a high position is moved backward by the cereal culm transport device 16 near the root of the culm. After being nipped and transported upward, and the grain culm transport device 16 is rotated downward,
After a lapse of a certain period of time (while the supply of the culm in the culm transport device 16 is completed), the hydraulic cylinder 21 contracts and moves the suspension rods 18, 18 upward in the axial direction (length direction), thereby changing the rail. The pieces 5a and 5b are supported on the rail frame 22.
In this state, it is pulled up in parallel against the spring, and at the same time, the grain culm transport device 16 is rapidly lowered and turned to the deepest handling position regardless of the detection result of the culm length detector.

[0010] The short grain stalks harvested at a high position are fed back while being held close to the base by a grain stalk transport device 16, the spike side is inserted into the supply port of the threshing device 2, and the stock side is inserted. but are scraped fried rests beginning of the feed chain 3, the rail pieces 5a, the 5b lower portion of the rail frame 22
In this state , the pinch is released from the feed chain 3 and the spikes with all the grains are strongly pulled by the teeth of the handle cylinder. The whole grain stalk is easily pulled into the handling room without being pinched by the starting end of No. 6, and is subjected to a shedding process in the same manner as a thresher type. However, when cutting and threshing grain culms along the levee, the load on the handling drum becomes large, so it is desirable to slightly reduce the traveling speed in order to reduce the amount of supplied grain culms. Also, in the case where the handling depth is adjusted in the direction of decreasing the handling depth from the deepest handling state, the lowering of the rail pieces 5a and 5b is delayed for a certain time.

At the rear of the threshing device 2, a desk-type cutter 27 is mounted, and at the upper part of the feed chain immediately after the operation unit, a forward switch 28 and a reverse switch 29 are provided.
The aircraft moves forward when the forward switch 28 is pressed, and retreats when the reverse switch 29 is pressed. A chute cover composed of side plates on both sides and a rear plate 30 is vertically provided below the cutter 27, and a cutout groove 31 having a downward opening is formed in an intermediate portion of the rear plate 30. The sensor bar 33 of the detector 32 consisting of a potentiometer mounted on the upper part is rotationally urged so as to enter inwardly from the notch groove 31 with no load, and the grain culm is supplied with the body stopped. And threshing, and the discharged waste straw is
When shredded by 7, the straw is deposited below the chute cover, which pushes the sensor bar 33 backward and turns on the detector 32, which is input to the microcomputer,
An alarm such as a buzzer is activated by the output, so the worker predicts that the aircraft will run, and when leaving the aircraft,
After a certain period of time, the forward solenoid of the electromagnetic clutch for forward and backward movement operates, so that the aircraft automatically advances, and when the chute cover moves to a place where no straw is deposited, the detector 32 is turned off, and the aircraft is turned off. Stop.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a plan view of a starting end of the grain stem holding and conveying device.

FIG. 3 is a side view of the same.

FIG. 4 is an input / output control diagram.

FIG. 5 is a flowchart.

FIG. 6 is a side view of a cutting height detector mounting portion.

FIG. 7 is a side view of a combine having a straw processing device.

FIG. 8 is a rear view of the detection unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling device 2 Threshing device 3 Feed chain 5 Nipping rail 5a Rail piece 5b Rail piece 6 Grain squeezing and conveying device 18 Suspension rod 21 Hydraulic cylinder (actuator) 22 Rail frame

Claims (2)

(57) [Claims] 1. A threshing device is mounted on a machine having a traveling device, a pretreatment device is provided in front of the threshing device, and a grain culm is provided by a lower feed chain and an upper clamping rail facing and close to the feed chain. In a combine in which a grain stalk nipping and conveying device for nipping and conveying is arranged along the handle of the threshing device, the nipping rail is constituted by connecting a plurality of rail pieces, and each rail piece is suspended upward. A rod is provided, each rail piece is elastically supported on the rail frame via the suspension rod and a spring so as to be able to move up and down, and an actuator connected to the suspension rod is provided, and the suspension rod is raised in the axial direction by the operation of the actuator. Les the rail piece by moving
By moving it upward against the spring while being supported by the rail frame,
Clamping solutions spaced rail piece from the feed chain with square site
A grain culm supply device of a threshing device for a combine, wherein the device is configured to switch to a removal state . 2. The method according to claim 1, wherein the actuator is connected to the plurality of suspension rods, and the plurality of suspension rods are moved upward in the axial direction by the operation of the actuator, so that the rail pieces are moved in parallel in the upward direction. A grain stalk supply device for a combine threshing device according to claim 1.