JPH11192014A - Threshing section structure - Google Patents

Abstract

(57) [Problem] To provide a threshing unit structure that can suppress the stay of straw waste and the like in a cover and can easily remove even if straw waste and the like stay in the cover. SOLUTION: A feed chain F in a threshing device 4
A transmission mechanism 17 to the threshing device 4 is provided on the lateral outer side of the lower side wall section 16 below, and a cover 20 that covers the transmission mechanism 17 is provided, and the bottom of the cover 20 is configured to be openable and closable. Threshing unit structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine and a threshing unit mounted on a mobile threshing machine.

[0002]

2. Description of the Related Art Conventionally, a transmission mechanism for transmitting power to a first recovery device, a second recovery device, and the like is provided laterally outside a side wall portion below a feed chain in a threshing device mounted on a combine or the like, particularly a belt type. 2. Description of the Related Art There is known an arrangement in which a transmission mechanism is provided, and a cover for covering the transmission mechanism is detachably provided on a side wall portion. The bottom of this cover had a closed structure to prevent the stones, mud, etc. on the ground from jumping into the transmission mechanism side and preventing the stones, mud, etc. from getting into the pulleys and belts of the transmission mechanism, for example. .

[0003]

In order to easily and quickly attach and detach the cover for covering the power transmission mechanism, the locking portion and the locked portion are connected to the side wall portion of the threshing device by the cover, the side wall portion, and the like. And the locking portion is engaged and disengaged from the locked portion, so that there is some gap between the upper portion of the cover and the side wall portion. , The straw debris that has fallen from the feed chain that is transported backward while pinching the grain stem enters the cover from the gap between the top and side wall of the cover and stays at the bottom, adversely affecting the transmission mechanism Was likely to be provided. for that reason,
Conventionally, the remaining straw debris was removed by removing the entire cover. However, since the entire cover had to be removed one by one, the operation was troublesome.

[0004] The present invention has been made in view of the above-mentioned circumstances, and it is possible to suppress the accumulation of straw chips and the like in the cover, and to simplify the operation even if the straw chips and the like remain in the cover. The purpose is to provide a threshing unit structure that can be eliminated from the market.

[0005]

(Structure) In a threshing unit structure according to a first aspect of the present invention, a transmission mechanism for the threshing device is disposed laterally outside a lower side wall of a feed chain in the threshing device. And a cover that covers the transmission mechanism is provided, and the bottom of the cover is configured to be openable and closable.

(Operation) According to the structure of the first aspect of the present invention, a transmission mechanism for the threshing device is arranged laterally outside the lower side wall of the feed chain in the threshing device, and the transmission mechanism is provided. Is provided, and the bottom of the cover is configured to be openable and closable. Therefore, even if straw chips enter the cover from the feed chain side through the gap with the side wall and stay there, the bottom is opened. Thereby, the straw waste in the cover can be discharged.

(Effects) Therefore, according to the structure of the first aspect of the present invention, it is possible to easily discharge straw wastes and the like that have entered the cover by a simple modification of opening and closing the bottom of the cover. Therefore, it is possible to suppress the staying of the waste chips and the like in the cover for a long period of time, and it is possible to prevent the waste materials in the cover from affecting the transmission mechanism.

(Structure) A threshing unit structure according to claim 2 of the present invention is the threshing unit structure according to claim 1, wherein a lid member for opening and closing the bottom of the cover can be opened only to the outside. It has a characteristic configuration.

(Operation) According to the second aspect of the present invention, since the cover for opening and closing the bottom of the cover can be opened only to the outside, an operation such that the cover enters the cover can be performed. Therefore, there is no possibility that the transmission mechanism and the cover member may come into contact with each other when the cover member enters the cover.

(Effects) Therefore, according to the configuration of the second aspect of the present invention, there is no possibility that the cover member comes into contact with the transmission device in the cover, so that the cover member comes into contact with the driven transmission mechanism. As a result, problems such as breakage due to damage were solved.

(Structure) The threshing unit structure according to claim 3 of the present invention is the threshing unit structure according to claim 1 or 2, wherein a lid member for opening and closing the bottom of the cover is elastically urged toward a closing side. It has a characteristic configuration.

(Operation) According to the third aspect of the present invention, since the cover member for opening and closing the bottom of the cover is elastically urged toward the closing side, the cover member is elastically urged toward the closing side. If not, it must usually be stopped with bolts or the like in order to keep it closed, but such a holding means becomes unnecessary. Also, if the elastic biasing force is set to be weak, the lid member automatically opens and operates due to the weight or vibration of the straw debris or the like that has accumulated at the bottom of the cover, so that the straw debris and the like are discharged during the opening operation. As a result, it is not necessary for the worker to open the lid member one by one to discharge the waste such as straw.

(Effects) Therefore, according to the configuration of the third aspect of the present invention, fasteners such as bolts for holding the lid member in the closed position are not required, and the work of fastening and releasing the fastening is not required. As a result, work efficiency can be improved.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a self-contained combine. This self-removable combine mounts a cutting pretreatment device 3 on a front end portion of a body frame 2 supported by a pair of right and left crawler traveling devices 1 and 1 so as to swing up and down around a horizontal axis. 2 is equipped with a threshing device 4, a boarding operation unit 5, a Glen tank 6, and the like.

As shown in FIGS. 2 and 4, the threshing apparatus 4 rotates a handling cylinder 7 for threshing a grain stalk conveyed by nipping and carrying the stock by a feed chain F around a longitudinal axis. It is installed and supported in the handling room 8 in this state. On the lower surface side of the handling cylinder 7, a receiving net 10 for subjecting the threshing processed material to a sorting device 9 to perform a leaking process is provided. Then, the swing sorting device 12 that receives the leaked material from the receiving net 10 and the processed material discharged from the dust sending port 11 at the rear end of the receiving net 10 and performs the sorting process while transporting it backward is rocked. It is arranged in the state where it is done. A karano 13 for supplying a sorting wind to the swing sorting device 12 is disposed below the front end of the swing sorting device 12. Further, a screw conveyor 14 for collecting the first thing and a screw conveyor 15 for collecting the second thing which collects the coarsely sorted material are disposed below the swinging sorting device 12, respectively. .

As shown in FIG. 2, a belt-type transmission mechanism 17 as a transmission mechanism from the rotation shaft of the Karaoke 13 is disposed on the side of the side wall 16 below the feed chain F in the outer case of the threshing apparatus 4. The belt-type transmission mechanism 17 is the first object-collecting screw conveyor 1.
A transmission belt 19 is wound around a pulley 18 # provided on each of the fourth and second screw collection conveyors 15 and the like so as to be able to transmit the same. A cover 20 made of sheet metal that covers the belt-type transmission mechanism 17 is formed in a horizontally long box shape, and the cover 20 is detachably attached to the side wall portion 16. That is, as shown in FIG. 2 and FIG.
Reference numeral 0 denotes a front-rear width set to be substantially the same as the front-rear width of the threshing device 4. The bottom plate 20 </ b> A is attached to the lower end edge of the outer side surface portion 20 </ b> B of the cover 20 by hinges 21, 21. It is provided so as to be swingable around and elastically urged upward by the weak springs 22, that is, toward the closed side. Here, the bottom plate 20A constitutes a lid member that covers the bottom and is openable and closable. Then, as shown in FIG. 3, the flange 20 a erected on the bottom plate 20 </ b> A is restricted from coming into contact with the inner surface of the side portion 20 </ b> B.
The entry of 0 into the inside is prevented. Further, as a structure for attaching and detaching the cover 20 to and from the side wall portion 16, synthetic resin hooks 23 are provided near the hinges 21 on the inner surface of the side surface portion 20 </ b> B. The lower receiving hooks 24, 24 made of synthetic resin are provided at locations separated upward. And hook 2
The engaged metal fittings 25, 25 with which the lower receiving hooks 24, 24 are engaged, and the engaged metal fittings 25, 25 with which the lower receiving hooks 24, 24 are engaged.
6 and 6 are each formed by bending a rod-shaped member, and project from the side wall portion 16. The lower receiving hooks 24, 24 are integrally connected to and supported by a front hand-pressing plate that can be manually pushed by a user in a state in which an elastic urging resin plate that elastically urges upward is in contact with the lower pressing hooks. When the operator pushes the hand push plate, the lower receiving hook 24 is swung downward to engage the engaged metal fitting 2.
5 can be released. Further, a second cover 27 made of sheet metal that covers the side wall 16 between the upper portion of the cover 20 and the feed chain F is also configured to be detachable from the side wall 16 by the same structure as the cover 20. That is, engaging metal fittings 29, 29 to which a pair of front and rear projecting resin hooks 28, 28 are engaged with the lower portion on the inner surface side of the second cover 27 are provided on the side wall portion 16, and on the upper portion of the second cover 27. An upper engaged metal fitting 31, with which a pair of resin lower receiving hooks 30, 30 disposed in front and rear are engaged.
31 is provided on the side wall portion 16.

According to the above configuration, even if straw chips fall from the feed chain F toward the cover 20 and enter the cover 20 and stay at the bottom, the bottom plate 20A of the cover 20 is manually lowered. The bottom plate 2 may be slightly opened by swinging, or may be somewhat opposed to the urging force of the spring 22 due to vibration or the like during traveling of the self-detachable combine.
When the bottom is opened when OA swings downward, the staying straw waste is discharged to the outside. The bottom plate 20A has a flange portion 20a and a side portion 20B.
Is closed in a state where further upward movement is restricted by contact restriction with the base plate 20A, so that even when rocks, mud, etc. on the ground jump up, entry into the cover 20 is restricted by the bottom plate 20A. .

Next, the dust exhaust fan 32 provided at the rear of the threshing device 4 will be briefly described. Dust fan 3
2, as shown in FIGS. 4 and 5, a fan main body 32A is erected around the horizontal axis Y so as to be freely rotatable around left and right side walls 33L, 33R at the rear part of the outer case of the threshing device 4. That is, the input gear 34, which is rotationally driven by the transmission from the belt-type transmission mechanism 17, is supported by bearings on the left side wall 33L, and the hexagonal hole formed in the input gear 34 forms the rotation center axis of the fan main body 32A. Hex shaft 35
Can be inserted and fitted from right to left, and at the right end of the fan body 32A, a cover plate 37 provided with a bearing portion 36 for bearing and supporting the right end of the hexagonal shaft 35 is attached to the right side wall 33R. It is configured so that bolt connection is possible. Therefore,
When replacing the fan body 32A when the fin 38 of the fan body 32A is damaged, the fan body 32
Only by fastening and releasing the bolts with respect to the cover plate 37 integrated with A, the fan main body 32A can be inserted into and removed from the threshing device 4 from the right side.
The transmission to A can be achieved only by inserting and removing the hexagonal shaft 35 from the hexagonal hole of the input gear 34. The attachment / detachment work of the fan main body 32A can be easily performed without disassembling the bearing structure of the fan main body 32A. In the drawing, reference numeral 39 denotes a fan case of the dust discharge fan 32. In FIG. 5, illustration of the cover 20 is omitted.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a self-contained combine.

FIG. 2 is a longitudinal sectional front view showing the vicinity of a feed chain in a threshing apparatus.

FIG. 3 is a perspective view showing a cover.

FIG. 4 is a longitudinal sectional side view showing a threshing apparatus.

FIG. 5 is an exploded cross-sectional view showing a dust discharge fan.

[Explanation of symbols]

 4 Threshing device 16 Side wall 17 Transmission mechanism 20 Cover 20A Cover member F Feed chain

Claims (3)

[Claims] 1. A transmission mechanism for the threshing device is provided on a laterally outer side of a lower side wall of a feed chain in the threshing device, and a cover for covering the transmission mechanism is provided, and a bottom portion of the cover is openable and closable. Structure of the threshing unit. 2. The threshing unit structure according to claim 1, wherein a cover member for opening and closing the bottom of the cover can be opened only to the outside. 3. The threshing unit structure according to claim 1, wherein a lid member that opens and closes a bottom portion of the cover is elastically biased toward a closed side.