JP2006149251A - Combine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine enabling its compactification by a simple arrangement structure of a header part-driving gear case and an oil tank. <P>SOLUTION: This combine 10 supporting the header part 16 at the frontal direction of its machine body as freely lifting up and down and arranging its threshing part 15 in the rear directional part of the header part 16 of the machine body is provided by arranging the pre-treating part-driving gear case 28 for transmitting power to the header part 16 and the oil tank 42 for storing the lubricating oil of a hydraulic device for lifting up and down a working part of the header part 16, etc., or a power-transmitting device in the left and right direction of the machine body side by side so as to position between the header 16 and threshing part 15 at the front part of the machine body. By arranging the pre-treating part-driving gear case 28 and oil tank 42 in the left and right direction of the machine body side by side, the combine 10 can be compactified. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combine that drives a feed chain of a pretreatment unit and a threshing device via a hydraulic continuously variable transmission.

  In a combine that synchronizes the rotation speed of the preprocessing unit and the speed of the feed chain of the threshing device with the vehicle speed, input of a gear case (transmission device) for driving the preprocessing unit that distributes power to the preprocessing unit and the feed chain, respectively. A hydraulic continuously variable transmission is provided on the side, and power is transmitted from the high speed portion of the gear train of the gear case for driving the preprocessing portion linked to the hydraulic continuously variable transmission to the input portion of the preprocessing portion and from the low speed portion to the feed chain. A combine that communicates is known (for example, see Patent Document 1).

  An oil tank is fixedly installed at the front end of the fuselage, and a support part is provided in the oil tank to support the pretreatment part so that it can be raised and lowered, and power from the engine is distributed between the oil tank and the threshing part behind it There is known a combine in which a gear case (power distribution case) for driving the pre-processing unit is arranged and a mechanism for linking power distribution to the threshing unit (threshing device) has a relatively simple structure (for example, Patent Document 2). reference).

Japanese Patent Laid-Open No. 5-199812 (page 3, FIG. 3) JP 2000-92950 A (page 3, FIG. 2)

  The former prior art requires an oil tank for supplying lubricating oil to the gear case for driving the pretreatment unit or for supplying oil to various hydraulic devices. However, there is no disclosure about the installation of the oil tank. Absent.

  In the latter prior art, the oil tank and the gear case for driving the pretreatment unit are juxtaposed in the front-rear direction of the fuselage, which increases the size of the combine. In particular, in a small combine such as a two-line mower, an oil tank or the like cannot be installed because the space below the pretreatment support part is small. If the oil tank and the gear case for driving the pretreatment part are arranged in parallel in the front-rear direction, the combine Becomes larger than necessary.

  In view of the above circumstances, an object of the present invention is to provide a combine that can be made compact by a simple arrangement structure of a gear case for driving a pretreatment unit and an oil tank.

In order to achieve the above object, the present invention according to claim 1 is directed to support a pretreatment section (16) in front of the body (11) so as to be movable up and down, and to prevent the pretreatment section (16) of the body (11). In the combine (10) in which the threshing part (15) is arranged in the rear part,
A gear case (28) for driving a pretreatment unit for transmitting power to the pretreatment unit (16) to the airframe (11) between the pretreatment unit (16) and the threshing unit (15), and the pretreatment An oil tank (42) for storing lubricating oil for a hydraulic device or a power transmission device that moves up and down a working portion such as the portion (16) is arranged side by side in the left-right direction of the machine body (11).
It is in the combine characterized by that.

According to a second aspect of the present invention, a cooling fan (48) is disposed in the fuselage (11) between the pre-processing unit driving gear case (28) and the oil tank (42) with the air blowing direction as the left-right direction. did,
The combine according to claim 1.

The present invention according to claim 3 is a treatment depth transport body (26) that conveys cereal straw from the pretreatment section (16) to the threshing section (15) and adjusts the handling depth in the threshing section (15). )
A driving device (44) for swinging and driving the handling depth conveying body (26) is disposed in the machine body (11) between the preprocessing unit driving gear case (28) and the oil tank (42).
The combine according to claim 1.

  The reference numerals in the parentheses are for reference to the drawings and do not limit the present invention.

  According to the first aspect of the present invention, the gear case for driving the pretreatment section and the oil tank are arranged side by side in the left-right direction between the pretreatment section and the threshing section, so that the combine is configured compactly with a simple arrangement structure. In addition, the drive path from the preprocessing unit driving gear case to the preprocessing unit can be shortened, and the arrangement from the oil tank to each operation unit hydraulic device or power transmission device can be shortened.

  According to the second aspect of the present invention, it is possible to cool both the preprocessing unit drive gear case and the oil tank by a single cooling fan. Particularly, when the gear case is provided with HST, the HST is effectively cooled. can do.

  According to the third aspect of the present invention, it is possible to make the combine compact by disposing the swing driving device for the handling depth conveying body between the gear case for driving the pretreatment unit and the oil tank.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 7 show an embodiment of the present invention. FIG. 1 is a left side view of a combine according to the present invention, FIG. 2 is a right side view of a combine according to the present invention, and FIG. 1 and 2 are plan views showing the front part of the combine shown in FIG. 2, FIG. 4 is a front view of the combine with the pretreatment part of FIG. 3 removed, and FIG. 5 is a right side view showing the installation state of the gear case in FIG. 6 is a front view of FIG. 5, and FIG. 7 is a transmission system diagram of the combine shown in FIGS.

  As shown in FIGS. 1 to 4, the combine 10 includes a crawler traveling device 12 below the body 11, and is configured to be able to travel and turn by the operation of the crawler traveling device 12. A driver's seat 13 is disposed on the left and right sides of the airframe 11, and a threshing portion 15 is disposed on the other side. A pre-processing unit 16 is disposed in front of the body 11.

  The pretreatment unit 16 includes a horizontal transmission pipe 20 rotatably supported by a pair of left and right support members 17 and 18, and a vertical transmission pipe 21 fixed to the horizontal transmission pipe 20. A divider 22, a cutting blade (not shown), a cutting and conveying device (not shown), and the like are disposed at the tip. The cutting blade, the cutting and conveying device and the like are driven by the power transmitted through the lateral transmission pipe 20 and the vertical transmission pipe 21. The support member 17 is fixed to the threshing portion 15 via a connecting member 23.

  The threshing unit 15 is provided with a feed chain 25 for conveying the cereals along the threshing unit 15. Between the feed chain 25 and the cutting and conveying device of the pre-processing unit 16, the horizontal transmission pipe 20 is rotatably supported so that the passing position of the tip of the culm relative to the threshing unit 15 can be adjusted. The treated depth conveyance body 26 is arranged.

  As shown in FIGS. 3 to 6, the front of the machine body 11 has a front through the support member 18 and an attachment member 27 so as to be positioned between the threshing unit 15 and the pretreatment unit 16. A processing unit drive gear case 28 is disposed and connected and fixed to the threshing unit 15 via a connecting member 30. That is, the support member 18 also serves as a mounting member for the preprocessing unit driving gear case 28. By disposing the preprocessing unit driving gear case 28 at the front of the airframe 11, the driving path from the preprocessing unit driving gear case 28 to the preprocessing unit 16 can be configured to be short.

  A hydraulic continuously variable transmission (hereinafter referred to as HST) 31 is disposed on a side surface of the preprocessing unit driving gear case 28, and an HST oil tank 32 is provided. A motor 35 and a potentiometer 36 are supported on the mounting bracket 33 fixed to the preprocessing unit driving gear case 28.

  Then, a fan gear 38 fixed to the HST 31 trunnion shaft is driven by a gear 37 fixed to the output shaft of the motor 35 to adjust the output of the HST 31. The potentiometer 36 detects the swing amount of the sector gear 38 via the sensor arm 40 fixed to the movable shaft, and detects the output of the HST 31.

  In the machine body 11, an oil tank 42 is disposed between the threshing part 15 and the pretreatment part 16 via an attachment member 41, and the left and right direction of the gear case 28 for driving the pretreatment part and the machine body 11. It is arranged to line up. The oil in the oil tank 42 is used not only as lubricating oil for the traveling HST of the combine 10 but also as operating oil for the pretreatment unit 16 and other hydraulic equipment. By disposing the oil tank 42 at the front portion of the machine body 11, the disposition from the oil tank 42 to each operation unit hydraulic device or power transmission device can be shortened.

  In the body 11, the swing driving device 44 of the handling depth transport body 26 is placed between the threshing portion 15 and the pretreatment portion 16, and the gear case 28 for driving the pretreatment portion and the oil. Arranged between the tanks 42. The swing drive device 44 includes a motor 45 disposed so as to be positioned between the support member 17 and the oil tank 42, a feed screw 46 fixed to the output shaft of the motor 43, and the feed screw 46. And a link mechanism 47 that rotates the handling depth conveying body 26 around the lateral transmission pipe 20. The combine 10 can be made compact by disposing the swing driving device 44 of the handling depth conveying body 26 between the preprocessing unit driving gear case 28 and the oil tank 42.

  A cooling fan 48 is arranged in the HST 31 so as to blow air from the HST 31 side toward the oil tank 42 side. Accordingly, since the air around the preprocessing unit driving gear case 28 is sucked by the rotation of the cooling fan 48, the preprocessing unit driving gear case 28 can be cooled. The oil tank 42 can be cooled by the air blown from the cooling fan 48 to the oil tank 42. Further, when the HST 31 is provided in the preprocessing unit driving gear case 28, the HST 31 can also be effectively cooled.

  As shown in FIG. 7, the threshing unit 15 selects the grain from the first handling cylinder 51 and the second handling cylinder 52 that handle the grain from the grain culm, and the grain and swarf that are handled. A swing sorter 53 that performs the operation, a first spiral 55 that carries the sorted grain out of the threshing unit 15, a second spiral 56 that recirculates the grain mixed with sawdust to the swing sorter 53, A tang fan 57 that blows a sorting wind for selecting grains and swarf on the swinging sorter 53, and sucking the swarf blown off from the swinging sorter 53 and discharging it to the outside of the threshing unit 15. A dust exhaust fan 58, a waste disposal unit 60 that is disposed at the rear of the threshing unit 15 and that cuts and discharges the waste after the threshing is finished, and is transported by the feed chain 25. The cereals threshed by the second handling cylinder 52 are taken over from the feed chain 25 and are discharged. And a straw discharge conveyor chain 61 for transporting the processing unit 60. In addition, a grain tank (not shown) that stores the grain in the combine 10 and an auger 62 that carries the grain out of the grain tank may be installed.

  The transmission system of the combine 10 is configured as shown in FIG. Pulleys 71b, 71c, 71d are fixed to the output shaft 71a of the engine 71. Power is transmitted from the pulley 71b to the auger 62 via a belt 71e. Power is transmitted from the pulley 71c to the traveling drive system of the combine 10 via the belt 71f.

  Pulleys 72 a and 72 b and a bevel gear 72 c are fixed to the transmission shaft 72. Power is transmitted to the transmission shaft 72 by a belt 71g spanned between the pulley 71d and the pulley 72a.

  Pulleys 51 b and 51 b are fixed to the drive shaft 51 a of the first handling cylinder 51. A bevel gear 52c that meshes with a pulley 52b and the bevel gear 72c is fixed to the drive shaft 52a of the second handling cylinder 52. A belt 52d is stretched between the pulley 51b and the pulley 52b.

  A pulley 73 a and a bevel gear 73 b are fixed to the transmission shaft 73. A belt 51d is stretched between the pulley 51c and the pulley 73a. A bevel gear 61 b that meshes with the bevel gear 73 b is fixed to the drive shaft 61 a of the waste transport chain 61.

  The power transmitted to the transmission shaft 72 is transmitted to the drive shaft 52a via the bevel gears 72c and 52c, and rotationally drives the second barrel, and via the pulley 52b, belt 52d and pulley 51b. It is transmitted to the drive shaft 51a and rotationally drives the first handling cylinder 51. Further, power of the drive shaft 51a is transmitted to the transmission shaft 73 via the pulley 51c, belt 51d and pulley 73a, and the drive shaft 61a is transmitted from the transmission shaft 73 via the bevel gear 73b and bevel gear 61b. Then, the waste conveying chain 61 is driven.

  Pulleys 56b, 56c and 56d are fixed to the drive shaft 56a of the second spiral 56, and a belt 72d is stretched between the pulley 56b and the pulley 72b. A pulley 55 b is fixed to the drive shaft 55 a of the first spiral 55. A pulley 53 b is fixed to the drive shaft 53 a of the swing sorter 53. Pulleys 57 b and 57 c are fixed to the drive shaft 57 a of the tang fan 57. A belt 56e is stretched between the pulleys 56c, 55b, 53b and 57b. A pulley 58 b is fixed to the drive shaft 58 a of the dust exhaust fan 58. A pulley 60 b is fixed to the drive shaft 60 a of the waste disposal unit 60. A belt 56f is stretched between the pulleys 56d, 58b and 60b.

  When power is transmitted from the transmission shaft 72 to the pulley 72b, the belt 72d, and the pulley 56b, the drive shaft 56a is driven to rotate the second spiral 56, and the power is supplied to the pulley 56c, belt 56e, It is transmitted to the drive shaft 55a, the drive shaft 53a, and the drive shaft 57a through the pulley 55b, the pulley 53b, and the pulley 57b to drive the first spiral 55, the swing sorter 53, and the red fan 57. Further, the dust is transmitted to the drive shaft 58a and the drive shaft 60a through the pulley 56d, the belt 56f, the pulley 58, and the pulley 60b, and drives the dust exhaust fan 58 and the waste disposal unit 60.

  A pulley 31b is fixed to the input shaft 31a of the HST 31 that passes through the preprocessing unit driving gear case 28 in a rotatable manner. A belt 57d is stretched between the pulley 57c and the pulley 31b. Gears 31d and 31e are fixed to the output shaft 31c of the HST 31.

  An output shaft 28b driven by a gear train 28a meshing with the gear 31d and an output shaft 28d driven by a gear train 28c meshed with the gear 31e are disposed in the preprocessing unit driving gear case 28. . A pulley 28e is fixed to the output shaft 28d, and the pre-processing unit 16 is driven via a belt 28f that spans the pulley 28e. The output shaft 28 b is directly connected to the sprocket 25 a of the feed chain 25 and drives the feed chain 25.

  When power is transmitted from the drive shaft 57a of the tang fan 57 to the input shaft 31a via the pulley 57c, belt 57d and pulley 31b, the rotational speed thereof is HST31 and the gear train 28a of the preprocessing unit drive gear case 28. , 28c, and output to the output shafts 28b, 28d, respectively. Then, the feed chain 25 is driven from the output shaft 28b through the sprocket 25a, and the pretreatment unit 16 is driven from the output shaft 28d through the pulley 28e and the belt 28f.

  The cooling fan 48 can be attached to the output shaft 31c, for example, by extending the output shaft 31c of the HST 31 to the side opposite to the preprocessing unit driving gear case 28.

  As described above, the pre-processing unit driving gear case 28 and the oil tank 42 are arranged in the front portion of the body 11 in the left-right direction of the body 11, thereby shortening the length of the body 11 in the front-rear direction and combining 10. Can be made compact. Further, the combine 10 can be made more compact by disposing the swing driving device 44 of the handling depth transport body 26 between the preprocessing unit driving gear case 28 and the oil tank 42.

  Since one cooling fan is disposed between the preprocessing unit driving gear case 28 and the oil tank 42, the preprocessing unit driving gear case 28 and the oil tank 42 can be efficiently cooled. Further, the HST 31 can also be cooled by disposing the HST 31 in the preprocessing unit driving gear case 28.

It is a left view of the combine which concerns on this invention. It is a right view of the combine which concerns on this invention. It is a top view which shows the front part of the combine shown in FIG.1 and FIG.2. It is a front view of the combine which removed the pre-processing part of FIG. It is a right view which shows the installation state of the gear case in FIG. FIG. 6 is a front view of FIG. 5. FIG. 7 is a transmission system diagram of the combine shown in FIGS. 1 and 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Combine 11 Airframe 15 Threshing part 16 Pretreatment part 28 Pretreatment part drive gear case 42 Oil tank 44 Drive device (oscillation drive device)
48 Cooling fan

Claims (3)

In the combine in which the pretreatment unit is supported so as to be movable up and down in front of the machine body, and the threshing unit is arranged in the rear part of the pretreatment part of the machine body
A gear case for driving a pre-processing unit that transmits power to the pre-processing unit and a hydraulic device or a power transmission that moves up and down a working unit such as the pre-processing unit to the airframe between the pre-processing unit and the threshing unit. An oil tank for storing lubricating oil for the device is arranged side by side in the left-right direction of the aircraft,
Combine that is characterized by that. A cooling fan is disposed in the airframe between the preprocessing unit driving gear case and the oil tank, and the air blowing direction is disposed in the left-right direction.
The combine according to claim 1. A conveying depth conveying body that adjusts the handling depth in the threshing portion while conveying cereals from the pretreatment portion to the threshing portion,
A drive device that swings and drives the handling depth conveyance body is disposed in the machine body between the gear case for driving the pretreatment unit and the oil tank,
The combine according to claim 1.

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