JP2000092964A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester capable of ensuring the safety of manual threshing work by placing an emergency engine-stopping tool at a specific position to stop the engine and all driving parts including the threshing part in an emergency. SOLUTION: This combine harvester is provided with a culm reaping part, a feed chain and a threshing part. The reaping part is provided with an auxiliary transfer device to assist the delivery of the reaped culm to the feed chain and the auxiliary transfer device is provided with a culm clogging sensor 54 to detect the clogging of culm. The engine driving each driving part of the main machine is stopped based on the detection result of the culm clogging sensor 54. An emergency engine-stopping tool 60 is placed near the culm-clogging sensor 54 forcing the culm-clogging sensor 54 to take the sensing action in an emergency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combine.

[0002]

2. Description of the Related Art Conventionally, as one form of combine, a cutting unit for cutting grain stalks, a feed chain for conveying grain stalks cut by the cutting unit, and threshing of grain stalks conveyed by the feed chain. Equipped with a threshing unit, provided in the mowing unit, an auxiliary transport device that assists in transferring the harvested grain culm to the feed chain, and provided in the auxiliary transport device with a grain stalk clogging sensor that detects clogging of the grain culm. There is a configuration in which the engine that drives each drive unit of the machine is stopped based on the detection result of the clogged grain sensor.

[0003] Further, the rice remaining in the uncut state in the field is cut by a worker manually, threshed by holding the root portion of the grain stalk in a hand and inserting the tip end into the threshing part of the combine. In some cases, a so-called manual operation is performed.

[0004] A switch for emergency stop of the engine is provided on the grain stalk pressing cover which covers the upper part of the feed chain, so that the hand, clothes, etc. of the operator should be pinched by the feed chain during manual handling. In this case, the switch is operated to stop the engine urgently, so that the driving of all the driving units as well as the threshing unit can be stopped.

[0005]

However, in the above-mentioned combine, although the switch for emergency stop of the engine is rarely used, it is mounted as necessary in consideration of safety. Switches are increasing manufacturing costs.

In addition, the above switch requires time and effort to attach it to the cereal stem pressing cover body, thereby reducing manufacturing efficiency.

[0007] Further, the position of the switch for emergency stop of the engine provided on the grain stalk pressing cover body is located on the upper right side when viewed from a worker who performs manual handling work. If the handle is pinched, the right hand is likely to be pinched because the handling cylinder is located on the right front, and in this case, it is difficult for the operator to press the switch with the left hand,
Good safety cannot be ensured.

[0008]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a cutting section for cutting grain stalks, a feed chain for conveying the grain stalks cut by the cutting section, and a grain stalk conveyed by the feed chain. Equipped with a threshing unit for threshing, provided in the reaping unit with an auxiliary transfer device for assisting the delivery of the cut culm to the feed chain, and a culm clogging sensor for detecting clogging of the cereal culm in the auxiliary transfer device In the combine configured to stop the engine that drives each drive unit of the machine based on the detection result of the grain culm clogging sensor,
An engine emergency stop device is arranged near the grain clogging sensor, and the combine can be operated to perform sensing operation of the grain clogging sensor with the engine emergency stop device. .

Further, the present invention provides an auxiliary transport device, comprising: an auxiliary transport chain; a clamping body which is opposed to a grain culm transport path of the auxiliary transport chain and elastically urged to advance toward the grain culm transport path. With a support bracket that supports the clamping body,
A grain stalk clogging sensor that detects the retreating movement of the pinching body separated from the grain stalk transport path due to the jamming of the grain stalk is installed. And the sensor terminal retreats in tandem with the reversing clamping body to perform the sensing operation. On the other hand, the engine emergency stop device rotates the middle part around the axis substantially perpendicular to the direction in which the sensor terminal protrudes. It is freely pivoted, and the working part side, the other end of the engine emergency stop device, engages with the sensor terminal in conjunction with the rotation operation of the operation unit side, which is one end of the engine emergency stop device. In addition, the sensor terminal is retracted to perform the sensing operation of the grain clogging sensor, and the operation unit of the engine emergency stop device is arranged in front of and near the feed chain.

[0010]

Embodiments of the present invention will be described below.

[0011] That is, the combine according to the present invention has, as a basic structure, a cutting section for cutting grain stalks, a feed chain for conveying the grain stalks cut by the cutting section, and a grain transferred by the feed chain. Equipped with a threshing unit for threshing the culm, and in the reaping unit, provided with an auxiliary transport device for assisting the delivery of the cut culm to the feed chain, and the auxiliary transport device for detecting clogging of the cereal culm. Providing a clog sensor,
The engine that drives each drive unit of the machine is stopped based on the detection result of the grain clogging sensor.

The combine has a characteristic structure in which an engine emergency stop device is arranged near the grain clogging sensor, and the combiner can be operated by the engine emergency stop device to perform a sensing operation of the grain clogging sensor. .

As described above, in an emergency, the engine emergency stop device is operated to perform the sensing operation of the grain stalk clogging sensor, thereby stopping the engine urgently and driving all the drive units as well as the threshing unit. It can be stopped to ensure the safety of handling work.

At this time, since an existing grain clogging sensor is used as a switch for urgently stopping the engine, the production cost of the machine can be reduced.

In addition, it is possible to save the trouble of providing a separate engine emergency stop switch, thereby improving the manufacturing efficiency of the machine.

The auxiliary transport device includes an auxiliary transport chain, and a clamping body which is opposed to the grain culm transport path of the auxiliary transport chain and is elastically biased to advance toward the grain culm transport path. A cereal clogging sensor is installed on the support bracket that supports the strangulation body to detect the retreating movement of the strangulation body separating from the culm transport path due to clogging of the culm. The sensor terminal protrudes in parallel with the operating direction, and the sensor terminal retreats and interlocks with the retreating clamping body to perform sensing operation. Pivotally supported about an axis substantially perpendicular to the axis, and interlocked with a rotation operation of the operation unit side, which is one end of the engine emergency stop device, and is rotated at the other end of the engine emergency stop device. A certain working part side engages with the sensor terminal and Retracting the same sensor terminals, thereby sensing operation cereal 稈詰 Mari sensor.

In this manner, the grain stalk clogging sensor can be reliably operated by the engine emergency stop device with a simple structure, and from this point of view, it is possible to ensure the safety of manual handling work and reduce the manufacturing cost of the machine. Reduction can be achieved.

The operation section of the engine emergency stop device is disposed in front of and near the feed chain.

As described above, the engine emergency stop device can be operated quickly, easily, and surely at the time of manual operation, and the operability of the engine emergency stop device and the safety of the manual operation are improved. Can be secured.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a combine according to the present invention, in which a pair of left and right crawler-type traveling parts 2 and 2 are provided below the body frame 1 and a reaper 3 is provided on the left front end of the body frame 1. Attachment, threshing section 4 just behind mowing section 3
, A straw processing unit 5 is provided immediately after the threshing unit 4, and an operating unit 6 is provided on the right front of the body frame 1.
An engine E is provided directly below the operating section 6 and
A grain storage unit 7 is provided immediately after these. 4a
Is a handle cylinder provided in the threshing unit 4, 8 is a feed chain provided on the upper left side of the threshing unit 4, and 9 is a grain squeeze pressing body arranged to face above the feed chain 8 and face the same.

Each drive unit is driven by the engine E.

As shown in FIG. 1, the mowing section 3 has a mowing frame 11 attached to the upper end of a column (not shown) erected at the left front end of the body frame 1 so as to be vertically rotatable.

As shown in FIGS. 1 and 2, the cutting frame 11 is used for weeding by the weeding boards 20 for weeding the six-rowed grain culms to be planted. A cereal stem raising device 21 for raising the six-row cereal stem, and a grain stalk raking device for scraping the root of the six-row cereal stem caused by the cereal stem raising device 21
22, a cutting blade device 23 for cutting the roots of the grain stalks scraped by the grain stalk scraping device 22, and a lower part of the six-row grain stalks cut by the cutting blade device 23 to the threshing unit 4 side. Lower transport device for transport
24, an upper conveying device 25 for conveying the upper part of the grain culm to the threshing unit 4 side, and a head conveying device 26 for conveying the head part of the same grain culm,
An auxiliary transport device 27 is provided to assist in transferring the culm from the upper and lower transport devices 25 and 24 to the feed chain 8 of the threshing unit 4.

As shown in FIGS. 1 and 2, the cereal stem raising device 21 includes a total of six raising cases 30 extending vertically in a position immediately behind the weeding plates 20 adjacent to the left and right. It is standing.

As shown in FIG. 1 and FIG. 2, the grain stalk scraping device 22 has a tine-equipped scraping belt 32 and a star wheel 33 vertically opposed to each other at a position immediately behind each of the raising cases 30. Have been placed.

As shown in FIGS. 1 and 2, the lower transport device 24 includes a left lower transport mechanism 34 that clamps the lower part of the two-row grain culm on the left side and transports the grain to the inner rear junction P. The lower central transport mechanism 35 that clamps the lower part of the two-row grain culm at the center and transports it to the inner rear junction P, and the lower middle part of the two-row cereal culm and converges the inner rear. A right lower transport mechanism 36 for transporting to the section P; and a vertical transport mechanism 37 for transporting to the feed chain 8 by sandwiching the lower part of the cereal culm transported by the transport mechanisms 34, 35, 36 and joined at the junction P. The vertical transport mechanism 37 behind the junction P is shared regardless of the number of cutting lines.

Therefore, the relative positional relationship between the vertical transport mechanism 37 and the threshing unit 4 can be kept constant, and good connection to the feed chain 8 provided in the threshing unit 4 can be ensured.

The transport mechanisms 34, 35, 36 are basically composed of transport chains 34a, 35a, 36a and transport chains 34a, 35a, 36a.
Clasps 34 placed opposite to the culm transport paths 35a and 36a
b, 35b, and 36b, and the vertical transport mechanism 37 is similarly configured.

As shown in FIGS. 1 and 2, the upper conveying device 25 is provided with a left upper conveying mechanism 38 for picking up the upper portion of the two-row grain culm on the left side and conveying the culm to the inner rear junction P. The upper central transport mechanism 39 which lifts the upper part of the two-row grain culm and transports it to the inner rear junction P, and the upper right of the two-row grain culm and lifts it to the inner rear junction P And a right upper transfer mechanism 40 for transferring, the right upper transfer mechanism 40 includes:
The front carrier 41 and the rear carrier 42 are divided into two parts.

As shown in FIGS. 1 and 2, the head transport device 26 includes a left head transport mechanism 43, a center head transport mechanism 44, and a right head transport mechanism 45. 43, 44, 45 are located immediately behind the star wheel 33, above each of the left upper transport mechanism 38, the central upper transport mechanism 39, and the front transport body 41, and interpose each of these grain culm transport paths. It is arranged at a position facing each of the transport mechanisms 38 and 39 and the front transport body 41 to transport the tip of the grain stem for two rows. Reference numerals 43a, 44a, and 45a denote ear tip transport tines, respectively.

As shown in FIGS. 3 and 4, the auxiliary transport device 27 is disposed between the terminal side of the vertical transport mechanism 37 and the terminal side of the rear transport body 42, and the starting end of the feed chain 8. It is arranged close to the side part 8a so that the middle part of the grain culm is delivered to the feed chain 8 and conveyed. 47 is a cereal rod delivery rod.

The auxiliary transport device 27 is basically composed of a transport chain 48 and a clamping body 49 arranged opposite to the grain culm transport path of the transport chain 48.

As shown in FIGS. 3 to 5, the holding body 49 is provided with a support bracket 51 at the rear end of the auxiliary frame 50 extending rearward from the left side of the cutting frame 11 toward the feed chain 8. Mounting through. 52 is a stay.

That is, the clasping body 49 comprises a rod-like clasping body 49a extending along the grain culm conveying path of the conveying chain 48, and a pair of front and rear rod-like supports 49b for supporting the clasping body 49a. ,
49b, and a pair of front and rear supports 49b, 49b
Are the left and right side walls of the support bracket 51 formed in the front view
Coil springs 53, 53 as elastic means are wound around the support members 49b, 49b located between the left and right side walls 51a, 51a.
The support members 49b, 49b are elastically urged by 3 and 53 so as to advance toward the culm conveying path side of the conveying chain 48.

On the ceiling wall 51b of the support bracket 51, a grain stalk clogging sensor 54 is mounted via a sensor support 55 so that the position of the sensor 54 can be adjusted in the direction of movement of the clasping body 49. Reference numeral 56 denotes a long hole for position adjustment, and 57 denotes an adjustment bolt.

That is, in the grain clogging sensor 54, the sensor main body 54a is attached to the sensor support 55, and the rod-shaped sensor terminal 54b is projected from the sensor main body 54a in parallel with the support 49b of the clamping body 49. A contact piece 49c projecting from the rear support 49b comes into contact with the sensor terminal 54b at the time of the retreating operation of the clamping body 49, and the sensor terminal 54b is retreated to perform the sensing operation. . Reference numeral 58 denotes a spring for restoring the sensor terminal.

The grain clogging sensor 54 is electrically wired so as to function as a stop switch of the engine E that drives each drive unit of the machine.

Therefore, when the grain stalk clogging sensor 54 detects the jam of the grain stalks of the auxiliary conveying device 27, the engine E is immediately stopped to take measures to eliminate the jam of the grain stalks.

Further, an engine emergency stop device 60 for stopping the driving of the engine E is mounted on the sensor support 55.

That is, in the engine emergency stop device 60, the support shaft 61 is attached to the rear portion of the sensor support 55 with its axis oriented in a direction substantially perpendicular to the direction in which the sensor terminal 54b projects, and extends in the front-rear direction on the support shaft 61. The intermediate part of the plate-shaped stopper main body 62 is pivotally supported via a pivot bracket 63, and a forked operating part 62a is formed at the front end of the stopper main body 62.
Is engaged with the sensor terminal 54b in a crossing manner, and the locking pin projects substantially orthogonally above the sensor terminal 54b.
54c, and an operating portion 62b
Is formed. Numeral 64 denotes a torque spring as an elastic means for urging the stopper main body 62 to rotate. The torque spring 64 separates the action portion 62a of the stopper main body 62 from the locking pin 54c about the support shaft 61. Elastically biased to rotate in the direction in which

In this way, when the operating portion 62b of the engine emergency stop device 60 is pushed toward the transport chain, the action portion 62a retreats the sensor terminal 54b via the locking pin 54c to perform the sensing operation. .

At this time, the operation unit 62b is connected to the feed chain 8
If the operator's right hand is pinched by the threshing unit 4 during manual handling, it can be operated with the left hand, or if both hands are pinched. It can be operated with a part of the body such as shoulders and arms.

Therefore, in an emergency, the engine E can be quickly stopped by operating the engine emergency stop device 60 promptly, and the safety of manual handling can be ensured well.

[0045]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, an engine emergency stop device is disposed near the grain clogging sensor so that the engine emergency stop device can be operated to perform a sensing operation of the grain clogging sensor. In an emergency, the engine emergency stop device is operated to perform a sensing operation of the grain stalk clogging sensor, thereby stopping the engine urgently, stopping the drive of all the drive units as well as the threshing unit, and handling it manually. Work safety can be ensured.

In this case, since an existing grain clogging sensor is used as a switch for urgently stopping the engine, the manufacturing cost of the machine can be reduced.

Further, it is possible to improve the production efficiency of the machine by eliminating the need to separately provide an engine emergency stop switch.

According to the second aspect of the present invention, the auxiliary transport device is opposed to the auxiliary transport chain and the grain culm transport path of the auxiliary transport chain, and is elastically urged to advance toward the grain culm transport path side. A supporting bracket for supporting the clamping body, and a culm clogging sensor for detecting a retreating movement of the clamping body moving away from the culm conveying path due to the clogging of the culm; The clogging sensor makes the sensor terminal protrude in parallel with the direction in which the banding body moves forward and backward, and the sensor terminal performs a sensing operation in conjunction with the banding body moving backward, while the engine emergency stop device is in the middle. Pivotably around an axis substantially perpendicular to the direction in which the sensor terminals protrude,
In conjunction with the turning operation of the operation unit side, which is one end of the engine emergency stop device, the operation unit side, which is the other end of the engine emergency stop device, engages with the sensor terminal and the sensor terminal. And the cereal clogging sensor is operated for sensing, so that the structure can be simplified and the cereal clogging sensor can be reliably operated by the engine emergency stop device. Performance and the manufacturing cost of this machine can be reduced.

According to the third aspect of the present invention, since the operation unit of the engine emergency stop device is disposed in front of and near the feed chain, the engine can be quickly, easily, and surely operated during manual operation. The emergency stop device can be operated, and the operability of the engine emergency stop device and the safety of the manual operation can be ensured satisfactorily.

[Brief description of the drawings]

FIG. 1 is a side view of a combine according to the present invention.

FIG. 2 is a plan view of a reaper.

FIG. 3 is a side view of the auxiliary transport device.

FIG. 4 is a plan view of the auxiliary transport device.

FIG. 5 is a perspective view of a grain culm sensor.

[Explanation of symbols]

 A Combine 1 Airframe 2 Running section 3 Cutting section 4 Threshing section 5 Drainage processing section 6 Operating section

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B076 AA03 CA11 CA20 DC01 EB05 EC23 ED12 2B084 AA01 AC05 BD05 BD19 BD26 BF11 BH13 2B085 AA02 AC18 AC23 AC70 BC03 BE11 BE50

Claims (3)

[Claims] 1. A cutting section equipped with a cutting section for cutting grain stalks, a feed chain for conveying the grain stalks cut by the cutting section, and a threshing section for threshing the stalks conveyed by the feed chain. In the part, an auxiliary transport device that assists in transferring the harvested grain culm to the feed chain is provided, and a grain culm clogging sensor that detects clogging of the grain culm is provided in the auxiliary transport device, and the grain culm clogging sensor is provided. In the combine configured to stop the engine that drives each drive unit of the machine based on the detection result, an engine emergency stop device is arranged near the grain clogging sensor, and the grain emergency stop device is used by the engine emergency stop device. A combine operable to operate a clogging sensor for sensing operation. 2. The auxiliary transport device includes an auxiliary transport chain, and a clamping body which is opposed to the grain culm transport path of the auxiliary transport chain and is elastically biased to advance toward the grain culm transport path. A stalk clogging sensor, which detects a retreating movement of the stalks away from the stalk transport path due to stalks of the stalks, is attached to a support bracket for supporting the stalks, and the stalk clogging sensor is a clamping body. The sensor terminal protrudes in parallel with the direction in which it moves forward and backward, and the sensor terminal retreats and interlocks with the retracting body to perform the sensing operation. The other end of the engine emergency stop device is rotatably supported about an axis substantially perpendicular to the protruding direction, and interlocks with the rotation operation of the operation unit side, which is one end of the engine emergency stop device. When the working part side is engaged with the sensor terminal, And retracting the same sensor terminal, according to claim 1 Combine wherein thereby sensing operation cereal 稈詰 Mari sensor. 3. The combine according to claim 2, wherein the operation unit of the engine emergency stop device is disposed in front of and near the feed chain.