JPH08322367A - Combine - Google Patents

Abstract

PURPOSE: To provide a combine capable of easily feeding grain straws for a hand-feeding threshing work into the feed chains of a thresher. CONSTITUTION: Two dust-preventing covers 8A, 8B divided in the longitudinal direction and capable of being downward moved on support points disposed at both the front and rear ends are disposed at the upper part of the longitudinally carrying device of a cutting and pre-treating device. The dust-preventing cover 8 is made in a form capable of being switched into a dust-preventing posture for covering the upper part of the longitudinally carrying device or into a V-shaped, hand-threshing grain straw-feeding posture downward moved in a shape for forming a grain straw-feeding opening between the free ends of both dust-preventing covers 8A, 8B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine having a dust-preventing cover provided on an upper portion of a vertical conveying device of a pre-cutting processing device.

[0002]

2. Description of the Related Art Conventionally, in the upper part of a vertical conveyor of a combine, floating materials such as straw debris from grain stems conveyed by the vertical conveyor are scattered to the control section on the lateral side of the vertical conveyor. A dustproof cover is provided to suppress it. The dust-proof cover is configured so that it can be slid forward and backward so as to be able to thresh a hand-cut grain culm, or can be swung upward and downward around a horizontal axis (Actual Publication No. 2-93927). (See Kaihei 3-112222).

[0003]

When threshing a hand-handled culm, the dust-proof cover is opened to supply the hand-handled culm to the starting end of the feed chain of the threshing device. The cover was merely opened and closed in an unobtrusive position when threshing a hand-handled culm.

An object of the present invention is to make effective use of a dustproof cover to facilitate the supply of hand-operated grain culms.

[0005]

According to a first aspect of the present invention, in the upper part of a vertical conveying device of a cutting pretreatment device, front and rear halves can be pivoted downward and divided into two front and rear dustproof parts. A cover is provided, and the dust-proof cover is swung downward in a dust-proof posture that covers the upper portion of the vertical conveyance device and is swung downward in a state in which a gap for grain grain supply is formed between the free ends of the dust-proof covers. It is configured so that it can be switched to a hand-operated grain culm feeding position.

According to a second aspect of the present invention, the front cover and the rear cover of the dustproof cover are linked through a link mechanism so that the front cover can be operated in conjunction with the manual operation of the rear cover. In addition, the link mechanism connecting the front cover attached to the cutting pretreatment device side and the rear cover attached to the threshing device side is configured to be extendable and retractable and expandable and contractible, so that the cutting pretreatment device is moved up and down. It is configured so that it can be switched between a state allowing expansion and contraction and a fixed state in which expansion and contraction are linked with both covers.

According to a third aspect of the present invention, the front cover and the rear cover of the dustproof cover are biased in a dustproof posture for covering the upper portion of the vertical conveyance device, respectively, and both covers are resisted against the biasing force. There is provided a fixing means for fixing the V-shaped hand-operated grain culm feeding posture that is swung downward.

According to a fourth aspect of the present invention, the front cover and the rear cover of the dust-proof cover are swung downward by their own weight, and a V-shaped hand-operated grain culm feeding posture and a vertical conveying device are used for conveying. It is configured so that it can be switched to a dustproof posture that covers the upper part of the vertical transport device by pushing up the grain culms that are to be pushed up.

According to a fifth aspect of the present invention, the front cover and the rear cover of the dustproof cover are linked through a link mechanism so that both covers can be operated in an interlocking manner, and One cover is configured to be swingable via a drive mechanism, and the drive mechanism and a grain culm presence / absence sensor for detecting the presence of grain culm introduced into the pre-cutting device are linked to each other, and the grain by the sensor is linked. In a dust-proof posture that covers the upper part of the vertical conveyance device with the dust-proof cover via the drive mechanism in accordance with the detection of culm, and with the detection of the absence of grain culm by the sensor, the dust-proof cover via the drive mechanism. It is configured so that it can be switched to a V-shaped hand-operated grain culm feeding posture that is swung downward.

[0010]

According to the first aspect of the present invention, when the dust cover of the front and rear divided into two is switched to the V-shaped hand-operated grain culm supply posture, the hand-handled grain culvert is tilted. The upper surface of the dust-proof cover which has been changed to can be used for feeding to the starting end of the feed chain of the threshing device. Then, by switching the front and rear two-part dust-proof covers to a dust-proof posture that covers the upper portion of the vertical transport device, it is possible to suppress the floating straws from the grain culvert transported by the vertical transport device from scattering around.

According to the second aspect of the present invention, it is not necessary to switch the postures of the front cover and the rear cover separately. In addition, when the pre-mowing treatment device is lifted during turning around the ridge, the link mechanism is not damaged by the vertical movement of the pre-mowing treatment device.

According to the third aspect of the present invention, the posture switching of the front cover and the rear cover can be restored by utilizing the biasing force of the spring, and the lifting means against the self-weight is fixed. Only a small operation force is required to release.

According to the present invention described in claim 4, normally,
Since the front cover and the rear cover are switched to the V-shaped hand-operated grain culm feeding posture that is swung downward by its own weight, the hand-operated grain culm is placed on the upper surface of the dust-proof cover which is changed to the inclined posture. It can be used to feed the starting end of the feed chain of the threshing device. Then, during mowing work while the machine is running, both covers are switched to the closed posture by pushing up the grain culvert conveyed by the vertical conveying device,
It is possible to prevent the floating straws from the grain culm conveyed by the vertical conveying device from scattering around.

According to the present invention described in claim 5, normally,
Since the front cover and the rear cover are switched to the V-shaped hand-operated grain culm feeding posture that is swung downward, use the upper surface of the dust-proof cover in which the hand-handled grain culm is changed to the inclined posture. Can be supplied to the beginning end of the feed chain of the threshing device. Then, during the mowing work with the machine running, when the sensor detects the cutting culm along with the traveling of the machine, the front cover and the rear cover are detected in accordance with the detection of the culm,
It is possible to suppress the floating straws scattered from the grain culm transported by the vertical transporting device by switching to a closed posture that covers the upper portion of the vertical transporting device.

[0015]

According to the present invention as set forth in claim 1, by using the dustproof cover for covering the upper portion of the vertical conveying device, the hand-operated grain culm can be supplied to the feed chain in a stable posture. The threshing process of culms can be done smoothly.

According to the second aspect of the present invention, the postures of the front cover and the rear cover need not be switched separately, and the postures can be switched quickly. In addition, since the link mechanism for interlocking the front cover and the rear cover is configured to be expandable and contractible, the link mechanism is not damaged by the raising of the pre-mowing treatment device during the mowing operation.

According to the third aspect of the present invention, when the front cover and the rear cover are artificially switched, the front cover and the rear cover can be lifted against their own weight with a light operating force. .

According to the present invention described in claim 4, a special mechanism for switching between the front cover and the rear cover is not required, so that the structure can be simplified and the cost can be reduced.

According to the fifth aspect of the present invention, since the presence / absence of grain culms is detected and the postures of the front cover and the rear cover are automatically switched, no special switching operation is required.
Moreover, it is possible to prevent clogging in the vertical transport device due to forgetting to switch.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show the entire three-row mowing combine, which is a cutting pretreatment device A comprising a raising device 1, a mowing device 2, and a vertical conveying device 3 at the front of the machine body. Equipped with, raise the fallen grain culm with the raising device 1, cut the grain stalks of the grain culm with the harvesting device 2, and convey the harvested grain culm to the landing with the vertical transport device 3 and change to the horizontal posture. It is configured to be delivered to the feed chain 4 of the threshing device D.

The reaping pretreatment device A is pivotally supported about the horizontal axis P with respect to the machine body so as to be vertically swingable, and is equipped with a hydraulic cylinder 5.
It is configured so that it can be driven up and down via. A control section 6 is provided on the lateral side of the vertical transfer device 3 of the pre-pruning treatment device A, and the vertical transfer device 3 is provided above the vertical transfer device 3.
A dust-proof cover B is provided to prevent straw dust floating from the grain culm transported by the above from scattering to the control section.

The dustproof cover B is a fixed dustproof cover 7 continuously provided on the upper part of the raising device 1, and a swingable openable / closable continuously provided at the rear part of the fixed dustproof cover 7. The fixed dustproof cover 7 is formed on the side surface cover 1a of the raising device 1 and on the upper surface of the partition wall 1b provided on the rear surface at the left and right center of the raising device. The front and rear dust-proof covers 8 are formed by a plastic transparent cover that is laid across the front and rear halves, and the front and rear dust-proof covers 8 are swingable and openable.
Is pivotally supported by the rear end of the side cover 1a of the raising device 1 and the rear end of the partition wall 1b so as to be swingable around the horizontal axis P1, and the rear cover 8B is attached to the front wall of the threshing device D. Horizontal axis P2
It is pivotally supported around it. The both covers 8A and 8B are formed of a plastic transparent cover that allows the inside to be seen through.

As shown in FIG. 3, the front cover 8A and the rear cover 8B are fixed to the arm 9a fixed to the rotating shaft 8a of the front cover 8A and to the rotating shaft 8b of the rear cover 8B. The arm 9b is connected to the inner and outer double expansion and contraction shafts 10, and the arm fixed to the rotation shaft 8b of the rear cover 8B by operating the operation lever 11 fixed to the rotation shaft 8b of the rear cover 8B. 9b, inner and outer double telescopic shaft 1
0, the arm 9 fixed to the rotary shaft 8a of the front cover 8A
The front cover 8A is operated in conjunction with the swinging of the rear cover 8B via the link mechanism R consisting of a. Then, the front cover 8A and the rear cover 8B
The rotation angle of the rear cover 8B with respect to the front cover 8A is set by the lever ratio of each arm 9a, 9b, and the substantially horizontal dust-proof posture that covers the upper portion of the vertical conveyance device 3 and both covers 8A, 8B. It is configured such that it can be switched to a V-shaped hand-operated grain culm feeding posture that is swung downward in a state where a gap for grain culm feeding is formed between the free ends. The operating lever 1
1 is configured so that it can be locked and held by the lever guide 11a at the position of the hand-operated grain culm supply posture.

The telescopic shaft 1 is attached to the outer shaft 10a of the telescopic shaft 10.
A lock mechanism 12 is provided which can be switched between a state in which 0 expansion and contraction is allowed and a state in which expansion and contraction is disabled. The lock mechanism 12 is composed of a solenoid type lock pin and is fitted in the outer shaft 10a. It is configured so that it can be engaged with a saw-toothed locking claw 10c formed on the inner shaft 10b.

The lock mechanism 12 includes a pre-mowing treatment device A.
It is configured so that the lock can be automatically released as the user moves up and down. That is, the normally-closed switch S1 for detecting the neutral position N of the lifting lever a of the pre-cutting device A is linked to the control device S using a microcomputer, and the operating lever a of the pre-cutting device A is raised UP or Descending DW
When it is operated to the side, the switch S1 for detecting the neutral position N of the operating lever a is turned on, the solenoid of the lock mechanism 12 is energized via the control device S and the driver Sa to release the lock, and to the neutral N position. The energization of the solenoid is released and locked with the stop operation.

The link mechanism R is provided at the shaft end on the inner side of the body protruding from the cover, and the operation lever 11 of the cover 8 is provided in the lever box 6b on the lateral side of the driver's seat 6a. It can be operated from the control section.

According to the above construction, when threshing a hand-handled culm, if the rear cover 8B is swung downward by the operating lever 11, the front cover 8 is moved through the link mechanism R.
A is integrally swung downward, and a gap for supplying grain culms is formed at the lower end. Therefore, the operator can easily supply the grain culms to the feed chain 4 by placing the hand-operated grain culm on the upper surface of the front cover 8A or the rear cover 8B and sliding it along the inclined surface.

During the mowing and threshing operation, when the operation lever a of the mowing pretreatment device A is operated to the upward UP side, the lock of the lock mechanism 12 is released via the control device S and the driver Sa by the signal from the switch S1. When the pre-cutting device A is raised, the telescopic shaft 10 is stretched and stretched.
It is possible to avoid bending or breaking of 0. In such a case, the front cover 8A and the rear cover 8B allow the telescopic shaft 10 to allow the relative distance between the covers 8A and 8B in the front-rear direction due to the raising of the pre-cutting apparatus A, and the both covers 8A and 8B. The hanging of 8B due to its own weight is prevented by the fitting of the outer shaft 10a and the inner shaft 10b.

[Second Embodiment] Second embodiment. As shown in FIG. 4, L-shaped arms 13a and 13b are respectively fixed to the ends of the rotary shafts 8a and 8b of the front cover 8A and the rear cover 8B, and the respective arms 13a and 1b are fixed.
Winding springs 14a and 14b are provided on the rotating shafts 8a and 8b of the armature 3b to move the arms 13a and 13b to the stoppers 15a and 1b.
The covers 8A, 8B are placed in a horizontal dustproof posture by being urged so as to contact the 5b, and the release wires 16, 16 are connected to the free ends of the arms 13a, 13b, respectively. The other ends of the wires 16 and 16 are connected to one operating lever 11, and the operating lever 11 can be locked and held by the lever guide 11a in the position of the hand-operated grain culm feeding posture, and the both covers 8A , 8B is the winding spring 1
It is configured so that it can be switched to a V-shaped hand-operated grain culm supply posture that is swung downward against the urging force of 4a and 14b. That is, the covers 8A and 8B biased in the dustproof posture by the winding springs 14a and 14b are attached to the release wires 16 and 1.
By means of a fixing means 17 composed of 6, an operating lever 11 and a lever guide 11a, both covers 8A and 8B can be fixed in a V-shaped hand-operated grain culm supply posture. The operation lever 11 is provided on the side wall of the threshing device D on the side of the feed chain 4 so that it can be easily operated from the hand-operated grain culm supply point, and the release wire 16 is hidden under the vertical transport device 3. Let the operating lever 1
It is connected to 1.

Third embodiment. As shown in FIG. 5, similarly to the first embodiment, the front cover 8A and the rear cover 8B are linked via a link mechanism R having a lock mechanism 12 so that both covers 8A and 8B are always connected to V It is set in a character-like hand-operated grain culm feeding posture. Therefore, when threshing a hand-handled culm, if the hand-handled culm is placed on the upper surface of the front cover 8A or the rear cover 8B and slid along the inclined surface, the feed chain 4 can be easily processed. Can supply grain culms. When threshing the cut grain culm as the machine runs, the front cover 8A is pushed up by the grain culm conveyed by the vertical conveying device 3.
Along with that, the rear cover 8B is lifted, and both covers 8B
The gap between A and 8B is closed to prevent the floating straws from the grain culvert conveyed by the vertical conveying device 3 from scattering around. The front cover 8A and the rear cover 8B include a rotating shaft 8
Due to the lever ratio of the arms 9a and 9b fixed to the a and 8b, as the front cover 8A rises, both covers 8A and 8b
The rotation angle of the rear cover 8B is set so that the gap B is closed. Further, similar to the first embodiment, the operation lever a of the pre-mowing treatment device A is used at the time of turning around the ridge.
When the lock mechanism 12 is operated to the up side, the lock mechanism 12 is driven by the signal from the switch S1 via the control device S and the driver Sa.
It is possible to prevent the expansion shaft 10 from being stretched when the pre-cutting apparatus A is lifted and the expansion shaft 10 is bent or damaged.

Fourth embodiment. As shown in FIG. 6, similarly to the first embodiment, the front cover 8A and the rear cover 8B are linked via a link mechanism R having a lock mechanism 12, so that both covers 8A and 8B are always connected to V It is set in a character-like hand-operated grain culm feeding posture. Then, the rotation shaft 8 of the rear cover 8B
A motor M as a drive mechanism capable of forward and reverse rotation is provided in b, and the motor M and the sensor S2 for detecting the presence or absence of grain stall provided in the raising path of the raising device 1 are used as a control device S and a driver Sb using a microcomputer. Through.
Therefore, when threshing a hand-handled grain culm, the hand-handled grain culm is used as it is for the front cover 8A or the rear cover 8
By mounting it on the upper surface of B and sliding it along the inclined surface, the grain culms can be easily supplied to the feed chain 4. Then, when threshing the cut grain culm as the machine is traveling, when the sensor S2 detects that the grain culm has been supplied to the raising device 1, the opening / closing cover 8 is automatically connected with it. Is switched to a horizontal dustproof posture, and is switched to a V-shaped hand-operated grain culm supply posture in accordance with the detection of the absence of grain culms.

In each of the above embodiments, the fixed dustproof cover 7 is shown as an example, but the fixed dustproof cover 7 may be omitted.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is an overall plan view of the combine

FIG. 3 is a schematic view showing the association between the dustproof cover and the control device.

FIG. 4 is a schematic diagram of a second embodiment.

FIG. 5 is a schematic diagram of a third embodiment.

FIG. 6 is a schematic diagram of a fourth embodiment.

[Explanation of symbols]

 3 Vertical transport device 8 Dust cover 8A Front cover 8B Rear cover 17 Fixing means A Mowing pretreatment device D Threshing device M Drive mechanism R Link mechanism S2 Sensor

Claims (5)

[Claims] 1. A front and rear two-part dustproof cover (8A), (8B) which can swing downward with a front end and a rear end as a fulcrum at an upper portion of a vertical transfer device (3) of the pre-cutting device (A). And a dust-proof cover (8) for covering the upper part of the vertical transport device (3) with a dust-proof posture, and a gap for supplying grain culms is formed between the free ends of the dust-proof covers (8A) and (8B). The combine is configured so that it can be switched to a V-shaped hand-operated grain culm feeding posture that is swung downwards. 2. A front cover (8) of the dustproof cover (8).
A) and the rear cover (8B) are linked via a link mechanism (R) so that the front cover (8A) can be operated in conjunction with the manual operation of the rear cover (8B), and the pre-cutting process is performed. Front cover (8A) attached to the device (A) side
The link mechanism (R) that connects the rear cover (8B) attached to the threshing device (D) side is configured to be expandable and contractible by extension and contraction, and is allowed to expand and contract due to the raising and lowering of the cutting pretreatment device (A). The combine according to claim 1, wherein the combine is capable of switching between a closed state and an expansion / contraction fixed state in which both covers (8A) and (8B) are interlocked. 3. A front cover (8) of the dustproof cover (8).
A) and the rear cover (8B) are biased to a dust-proof posture that covers the upper portion of the vertical transport device (3), respectively, and both covers (8A) and (8B) are swung downward against the biasing force. The combine according to claim 1, further comprising a fixing means (17) for fixing the V-shaped hand-operated grain culm supply posture. 4. A front cover (8) of the dustproof cover (8).
A) and the rear cover (8B) are swung downward by their own weight to provide a V-shaped hand-operated grain culm supply posture, and by pushing up the grain culms transported by the vertical transport device (3), the vertical transport device (3 The combine harvester according to claim 1, wherein the combine harvester is configured to be capable of switching to a dustproof posture that covers the upper part of). 5. A front cover (8) of the dust cover (8).
A) and the rear cover (8B) are linked through a link mechanism (R) to configure both covers (8A) and (8B) so that they can be operated in an interlocking manner, and both covers (8A) and (8B) One cover (8B) of the inside is configured to be swingable via a drive mechanism (M), and the presence of the grain stem introduced into the drive mechanism (M) and the pre-cutting processing device (A) is detected. In cooperation with the grain culm presence / absence sensor (S2), the dust cover (8) is attached to the upper part of the vertical conveyance device (3) via the drive mechanism (M) in accordance with the detection of the grain culm by the sensor (S2). In a dust-proof posture covering the V-shaped hand-holding device in which the dust-proof cover (8) is swung downward through the drive mechanism (M) in accordance with the detection of the absence of grain culms by the sensor (S2). The combine harvester according to claim 1, wherein the combine harvester is configured to be switchable to a grain culm supply posture.