JPH11187749A - Threshing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a threshing apparatus having a simplified structure for attaching a transmission case and a holding member to a side plate so that the attaching operation may be carried out in a time shorter than the conventional time. SOLUTION: This threshing apparatus has a threshing cylinder 17 supported by front and rear side plates 69, mutually interlocked and connected output shaft 38 of a transmission case 29 and a threshing cylinder shaft 17A. An attaching part 71 installed in the transmission case 29, and a holding member 73 for holding a bearing 72 supporting the threshing cylinder-supporting shaft 17A are arranged so as to touch to the side plate 69 in a state nipping the side plate from each front and rear surfaces, and the three layered piled part of the attaching part 71, the side plate 69 and the holding member 73 is fastened and connected together to fix the transmission case 29 and the holding member 73 to the side plate 69.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing apparatus in which a handling cylinder is supported over front and rear side plates, and an output shaft of a transmission case disposed outside the side plate and a handling cylinder support shaft are connected to each other.

[0002]

2. Description of the Related Art Conventionally, in the above-described threshing apparatus, a mounting portion provided on the transmission case and a holding member of a bearing that supports the handle barrel support shaft are separately bolted to a front side plate.

[0003]

According to the above-mentioned conventional construction, the mounting portion on the transmission case side and the holding member of the bearing are separately fixed to the front side plate by bolts. As a result, the structure for attaching the transmission case and the holding member to the front side plate becomes complicated, and there is a problem that the attaching operation takes time.

An object of the present invention is to simplify the structure for mounting the transmission case and the holding member to the side plate, and to perform the mounting work in a shorter time than before.

[0005]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Constitution] In the threshing apparatus described at the beginning, the mounting portion provided on the transmission case and the holding member of the bearing that supports the handle barrel support shaft are connected to the front and rear surfaces of the side plate so as to sandwich the side plate. The transmission case and the holding member are fixed to the side plate by jointly connecting the overlapping portions of the mounting portion, the side plate, and the holding member in three layers together.

According to the above structure, the mounting portion on the transmission case side and the side plate (either a front plate or a rear plate. That is, a structure in which the transmission case is mounted on the front side plate) (In the case of a structure in which the front side plate and the transmission case are attached to the rear side plate, the overlapping portions of the three layers of the rear side plate and the holding member are jointly connected together, so that the transmission case and the holding member are fixed to the side plate. For example, when the joints are jointly fastened by bolts, the number of bolt fixing points may be smaller than the conventional method in which the mounting portion on the transmission case side and the holding member of the bearing are separately bolted to the side plate, and the fixing to the side plate may be reduced. The structure for mounting the transmission case and the holding member can be simplified, and the side plate can be reinforced with the transmission case and the holding member.

[Effect] Therefore, the structure for mounting the transmission case and the holding member to the side plate can be simplified, and the mounting work can be performed in a shorter time than in the past, and the side plate can be connected to the transmission case and the holding member. It was possible to reinforce and improve the durability of the side plate.

The construction, operation and effect of the invention according to claim 2 are as follows.

[Structure] In the invention according to claim 1,
The holding member is formed of a dish-shaped disc having a flange portion for preventing the winding of a straw around its outer peripheral edge.

[Operation] In addition to providing the same operation as the operation according to the first aspect of the present invention, a straw or the like enters the gap between the end surface of the handling cylinder and the side plate and winds around the handling cylinder support shaft. Can be prevented. In addition, since the holding member is formed of the above-described dish-shaped disk, the holding member is hardly bent, the strength is increased, and the side plate can be further strengthened.

[Effect] Therefore, in addition to the same effect as the effect of the first aspect, the handling cylinder can be smoothly rotated, and the durability of the side plate can be further improved. Was.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine of all culms input type. This combine with all culms is equipped with a threshing device 3 on a traveling machine body 2 supported by a pair of left and right crawler traveling devices 1 and integrally connects a pre-cutting unit 4 and a feeder 5 for conveying culled culms. In this state, the rear end of the feeder 5 is supported by the traveling body 2 so as to be swingable about the horizontal axis O, and the cabin 7 having the driver's seat 6 is positioned right outside the feeder 5. 2, an engine 8 is disposed as a prime mover from the right outside of the feeder 5 to the rear of the cabin 7 and below, and a Glen tank 9 is arranged right outside the threshing device 3 behind the cabin 7. Behind the threshing device 3, a chopper 51 and a dust exhaust fan 58 for cutting the straw waste and discharging the same outside the machine are provided.

The pre-cutting processing unit 4 includes a reel 10 that rakes the rearward of the machine while raising the planted grain culm, a clipper-type reaper 11 that cuts the crushed grain culm, and An auger 13 is provided at one location of the cutting width, and the feeder 5 is configured by covering a conveyor 14 for transporting grain culms collected by the auger 13 to a threshing apparatus with a cover 15.

In the threshing device 3, the handling chamber 16 communicating with the end of the feeder 5 is formed by front and rear side plates 69, 70, etc.
The handling cylinder 17 is supported over the front and rear side plates 69 and 70, and the sorting unit 18 is disposed below the handling chamber 16, and
6 is provided with a receiving network 19 for supplying the processed material in a leaking manner to the sorting unit 18. The sorting unit 18 includes an oscillating sorting case 20, a main Karamin 21, a sub Karamin 32, a first item collecting screw conveyor 22, and a second item collecting screw conveyor 2.
The Karin 50 for No. 3 and No. 2 is provided, and the threshing processed material leaked and supplied from the receiving net 19 is sieved and wind-sorted while being rocked and transported backward by the rocking sorting case 20 to separate the kernels into the No. 1 grain. It is configured to be lifted from the screw conveyor 22 for collecting materials to the Glen tank 9 via the bucket conveyor 49 (see FIGS. 1 and 2), and the incompletely sorted second products are returned from the screw conveyor 23 for collecting second products. It is configured to return to the swing sorting case 20 via the device 24.

As shown in FIG. 4, a long counter shaft 25 (hereinafter referred to as a first counter shaft 25) extending in the left-right direction is provided in a space below the feeder 5 in front of the threshing device 3.
The left end of the output shaft 27 of the engine 8 is provided on the left side of the position corresponding to the left side plate 26 in the lateral direction.
From the first counter shaft 25 to the first belt transmission mechanism 28
It is configured to transmit power via the. Then, the horizontal input shaft 30 of the first gear case 29 (corresponding to a transmission case) attached to the front side plate 69 is made to protrude from the left side plate 26, and the left end of the first counter shaft 25 and the first gear case 29.
A second belt transmission mechanism 31 is provided between the input shaft 30 and the front end of the input shaft 30, and a lateral output shaft 38 of the first gear case 29 is provided.
The bevel gear mechanism 4
0 is linked to the deceleration interlock.

Further, as shown in FIG. 5, the main unit 21 and the auxiliary unit 32 of the sorting unit 18, the first item collecting screw conveyor 22, the second item collecting screw conveyor 23, the second item Karamin 50, and the rocking sorting case. 20, the input shafts 21A, 32A of the chopper 51, the dust exhaust fan 58,
22A, 23A, 50A, 52A, 51A, and 58A protrude from the left side plate 26, and a second gear case 33 as a reversing mechanism is interlockedly connected to an intermediate portion of the first counter shaft 25. The output shaft 34 is projected to the left so that the left end of the output shaft 34 is located substantially at the same position in the horizontal direction as the left end of the input shaft 21A such as the main car 21 and the left end of the output shaft 34 and the sorting unit 18 are selected. Each input shaft 21
A, 32A, 22A, 23A, 50A, 52A, 51
A to 58A, the third to seventh belt transmission mechanisms 3
5, 53, 54, 55 and 56 are provided. As shown in FIG. 4, power is transmitted from the output shaft 27 of the engine 8 to the traveling transmission case 60 and the unloader 61 of the Glen tank 9 via the twelfth belt transmission mechanism 62 and the thirteenth belt transmission mechanism 88. Is transmitted.
In FIG. 4, reference numerals 36 and 63 denote a threshing clutch and a traveling clutch, respectively. In FIG. 2, reference numeral 57 denotes a decorative plate 57 that covers the input shaft 21A and the like protruding from the left side plate 26.

The mounting structure of the first gear case 29 will be described. As shown in FIGS.
The mounting portion 71 provided on the gear case 29 and the handle cylinder support shaft 17
The holding member 73 of the bearing 72 supporting the A is separately applied to the front and rear surfaces of the front plate 69 in a state where the front plate 69 is sandwiched between the mounting member 71 and the front plate 69.
The first gear case 29 and the holding member 73 are fixed to the front side plate 69 by jointly connecting the overlapping portions of the three layers of the holding member 73 and the first gear case 29 with a plurality of bolts 74. Bolt 74
Are elongated holes 9 provided separately in the front side plate 69 and the holding member 73.
0, and the position of the first gear case 29 with respect to the handle cylinder support shaft 17A can be changed and adjusted freely. The holding member 73 includes a flange 73 for preventing the
a is constituted by a dish-shaped disk which is bent and connected.

As shown in FIGS. 4, 5, and 6, the first
A transmission mechanism 39 is provided between the input shaft 30 and the output shaft 38 of the gear case 29. In other words, the first, second, and third transmission gears 43, 42, and 44 having different numbers of teeth are spline-fitted to the input shaft 30 so as to be slidable at intervals from each other.
The shift gear 45 is spline-fitted to the output shaft 38 so as to be slidable, and the fourth and fifth transmission gears 46 and 47 are rotatably fitted on both sides of the shift gear 45 of the output shaft 38 via bearings 48. The first and third transmission gears 43 and 44 on both sides of the central second transmission gear 42 are always engaged with each other. Also, as shown in FIG.
4 is pivotally supported by a stay 66 on the outer wall side of the first gear case 29, and a rod 67 for linking the shift fork 64 and the operation lever 65 is provided with a plurality of shift forks at a plurality of shift positions. A ball detent mechanism 68 for holding the position of each of the balls 64 is provided.

As a result, the shift gear 45 is slid by operating the operation lever 65 and the clutch pawl 45a is moved to the clutch pawl 46a of the fourth transmission gear 46, in a low-speed state in which the shift gear 45 is engaged with the second transmission gear 42. The intermediate speed state in which the gears are engaged with each other, and the high speed state in which the shift gear 45 is slid in the reverse direction so that the clutch pawl 45a is engaged with the clutch pawl 47a of the fifth transmission gear 47.
The gear can be shifted stepwise, and suitable threshing can be performed according to the type of the harvested crop.

The bevel gear mechanism 40 includes a small-diameter bevel gear 59 provided on the output shaft 38 of the first gear case 29 and a front-rear output shaft 75 connected concentrically to the handle barrel support shaft 17A.
The large-diameter bevel gear 76 is engaged with the small-diameter bevel gear 59 in a state where the large-diameter bevel gear 76 is disposed closer to the handle cylinder 17 than the output shaft 38 of the first gear case 29.

Another Embodiment The present invention can be applied to a structure in which the transmission case 29 is attached to a rear plate 70. In this case, the mounting portion 7 provided on the transmission case 29
1 and the holding member 73 are applied to the rear side plate 70 in a state where the rear side plate 70 is sandwiched, and their overlapping portions are jointly connected.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is an overall plan view of the combine.

FIG. 3 is a vertical side view of the threshing apparatus.

FIG. 4 is a diagram showing a power transmission system of the threshing device.

FIG. 5 is a diagram showing a transmission system of the threshing device.

FIG. 6 is a sectional view showing a first gear case.

FIG. 7 is a sectional view showing a mounting structure of the first gear case.

FIG. 8 is a sectional view showing a mounting structure of the first gear case.

FIG. 9 is a diagram showing a structure of an operation unit of the transmission mechanism.

[Explanation of symbols]

 17 Handling cylinder 17A Handling cylinder support shaft 29 Transmission case 38 Output shaft 69 Front side plate 70 Rear side plate 71 Mounting part 72 Bearing 73 Holding member 73a Flange part

Continued on the front page (72) Inventor Shinzo Kashino 64 Ishizukita-cho, Sakai-shi, Osaka, Japan, inside Kubota Sakai Works, Ltd. 72) Inventor Yuichi Fumino 64 Ishizu-Kitacho, Sakai City, Osaka Prefecture Inside Kubota Sakai Works

Claims (2)

[Claims] 1. A handling cylinder is supported over front and rear side plates,
A threshing device in which an output shaft of a transmission case disposed outside the side plate and a handling cylinder support shaft are interlocked and connected, wherein a mounting portion provided on the transmission case, and a bearing that supports the handling cylinder support shaft. With the holding member, while separately applying to the front and rear surfaces of the side plate while sandwiching the side plate,
A threshing apparatus in which the overlapping portion of the three layers of the mounting portion, the side plate, and the holding member is jointly fastened and the transmission case and the holding member are fixed to the side plate. 2. The threshing apparatus according to claim 1, wherein the holding member is a dish-shaped disk having a flange portion for preventing the winding of a straw on an outer peripheral edge thereof.