KR20130142077A - Combine - Google Patents

Abstract

The supply speed of a storehouse to a threshing device is optimized. A hydraulic nonstop variable-speed driving device (10) for operating a feed chain (12B) is installed without operating a driving device (2) and a cutting device (4), a counter shaft (71) is installed to the left and right directions in the front side of a threshing device (3), power is delivered from an output shaft (70) of an engine (62) to the internal side part of the counter shaft (71), and power is delivered from the external side part of the counter shaft (71) to an input shaft (10A) of the hydraulic nonstop variable-speed driving device (10). Also, power is delivered from the counter shaft (71) to the threshing device (3), and a threshing clutch (90A) connects or blocks delivery of power from the output shaft (70) of the engine (62) to the counter shaft (71).

Description

Combine {COMBINE}

The present invention relates to a combine having a feed chain for supplying the grain stem harvested by the harvesting apparatus to the threshing apparatus.

Conventionally, in order to simplify the assembly of the combine transmission mechanism to facilitate assembly, the transmission mechanism branched into the transmission path for transmitting the rotation of the engine to the traveling device and the transmission path for transmitting to the harvesting device and threshing device (Patent Document 1) The electric mechanism (patent document 2) which installs branching into the electric path which transmits rotation of an engine to a traveling device and a harvesting device, and the electric path which transmits to a threshing apparatus is proposed.

Japanese Patent Laid-Open No. 5-199812 Japanese Patent Laid-Open No. 11-253039

However, the transmission mechanism of Patent Document 1 is output from a common hydraulic continuously variable transmission to the feed chain for supplying the grain stem to the harvesting apparatus and threshing apparatus, so that the driving speed of the feed chain is compared with the driving speed of the harvesting apparatus. There was a problem that the feed rate between the grains to the threshing apparatus cannot be optimized because it cannot be set independently. In addition, the output shaft of the gearbox for increasing and decelerating the rotation of the hydraulic continuously variable transmission protrudes toward the inside of the body, so that the number of parts of the electric mechanism from the gearbox to the feed chain increases, thereby reducing the space for installation. There was a problem that it could not be planned.

In addition, the transmission mechanism of Patent Document 2 has a problem that the transmission efficiency of the feed chain is low because the feed chain is transmitted from the sorting unit of the threshing apparatus through the continuously variable transmission.

Therefore, the main subject of this invention is to solve this problem.

The present invention which solves the above problems is as follows.

The invention according to claim 1 is provided with a mowing device (4) in the front of the body having the traveling device (2), a threshing device (3) behind the mowing device (4), and the threshing device ( On the right and left sides of 3) a combine having a feed chain 12B for taking over the grain stems harvested by the harvesting device 4 and supplying them to the threshing device 3, wherein the traveling device 2 and the harvesting device ( 4) the hydraulic continuously variable transmission 10 which drives the said feed chain 12B without driving, and the counter shaft 71 of the gas left-right direction are installed in the front side of the threshing apparatus 3, and the engine ( Power is transmitted from the output shaft 70 of 62 to the gas inside of the counter shaft 71, and power is transmitted from the gas outside of the counter shaft 71 to the input shaft 10A of the hydraulic continuously variable transmission 10. It is a combine characterized in that the configuration was made.

The invention according to claim 2 is configured to transmit power from the counter shaft 71 to the threshing apparatus 3, and transmits power from the output shaft 70 of the engine 62 to the counter shaft 71. It is the combine of Claim 1 which provided the threshing clutch 90A which connects and interrupts.

The invention according to claim 3 transfers power from the gas inner portion of the counter shaft 71 to the barrel 55 provided in the threshing apparatus 3, and from the gas outer portion of the counter shaft 71. It is the combine of Claim 2 which comprised the structure which transmits power to the sorting part 51 with which the threshing apparatus 3 was equipped.

The invention according to claim 4 is the combine according to claim 3 in which the counter shaft 71 and the hydraulic continuously variable transmission 10 are supported on the front wall 50A of the threshing apparatus 3.

The invention according to claim 5 is provided with a mowing support 35 for supporting the mowing device 4 at the front of the base, and the mowing support 35 and the front wall 50A of the threshing device 3 are provided. It is a combine of Claim 4 which connected to the support frame 11B, and supported the said hydraulic continuously variable transmission 10 to the said support frame 11B.

According to a sixth aspect of the present invention, there is provided a gear box (68) having a second output shaft (68B) for driving the feed chain (12B) to the right side of the support frame (11B), and the hydraulic continuously variable transmission ( It is a combine of Claim 5 which attached 10) to the left side of the said support frame 11B.

According to the invention of claim 7, the drive sprocket 17A rotatably supports the feed chain 12B to the outside of the gas around the fixed shaft 35B in the vertical direction and winds the feed chain 12B. And a coupling 68C for connecting and disconnecting the second output shaft 68B and the drive sprocket 17A between the second output shaft 68B and the feed chain 12B. In this case, the second output shaft 68B and the driving sprocket 17A are separated, and when the feed chain 12B is rotated inward to the body, the second output shaft 68B and the driving sprocket 17A are connected. It is a combine of Claim 6 which made into a structure.

The invention according to claim 8 shifts the hydraulic continuously variable transmission device 10 in order to synchronize the feed chain conveyance speed VF of the feed chain 12B to the mowing conveyance speed VH of the mowing device 4. The combine as described in any one of Claims 1-7 provided with the harvesting threshing mode and the control apparatus 85 which can implement the manual threshing mode which keeps the said feed chain conveyance speed VF at a predetermined conveyance speed.

The invention according to claim 9 is that, in the mowing threshing mode, the control device 85 has a first mowing speed VH when the mowing conveyance speed VH is equal to or greater than a first set value VH1 preset. It is the combine of Claim 8 which sets larger the ratio of the change amount of the said feed chain conveyance speed VF with respect to the change amount of the mowing conveyance speed VH than when it is lower than the setting value VH1.

The invention according to claim 10, wherein the control device 85 is a second set in advance in the cutting threshing mode as the cutting conveyance speed VH in which the feed chain conveyance speed VF is higher than the first set value VH1. It is the combine of Claim 9 which hold | maintains the said feed chain conveyance speed VF at predetermined 3rd set value VF2 when it is more than set value VH2.

(Effects of the Invention)

According to the invention as set forth in claim 1, since the feed chain 12B is driven by the hydraulic continuously variable transmission 10 which does not drive the traveling device 2 and the harvesting device 4, the drive speed of this feed chain 12B. Can be set independently of the drive speed of the harvesting device 4, and a suitable amount of harvesting grain stem can be supplied to the threshing apparatus 3 by the feed chain 12B.

According to invention of Claim 2, in addition to the effect of invention of Claim 1, the threshing clutch 90A which connects and interrupts transmission of the power from the output shaft 70 of the engine 62 to the countershaft 71 is provided. Since the threshing clutch 90A is used, transmission of power to the threshing apparatus 3 and the hydraulic continuously variable transmission 10 can be interrupted.

According to invention of Claim 3, in addition to the effect of invention of Claim 2, power is transmitted from the gas inner part of the countershaft 71 to the barrel 55, and the sorting part 51 from the gas outer part of the countershaft 71 is carried out. And the hydraulic continuously variable transmission 10, the transmission structure of the threshing apparatus 3 can be simplified and the body of a combine can be made compact.

According to invention of Claim 4, in addition to the effect of invention of Claim 3, the countershaft 71 and the hydraulic continuously variable transmission 10 are supported by the front wall 50A of the threshing apparatus 3, and the countershaft It is possible to prevent deformation of the 71 to improve durability and to improve transmission efficiency.

According to the invention of Claim 5, in addition to the effect of the invention of Claim 4, the hydraulic continuously variable transmission is provided by the support frame 11B which connects the mowing support 5 and the front wall 50A of the threshing apparatus 3. (10) can be supported.

According to the invention of claim 6, in addition to the effects of the invention of claim 5, the gearbox 68 and the hydraulic continuously variable transmission 10 including the second output shaft 68B for driving the feed chain 12B are provided. The left and right sides of the support frame 11B can be attached and supported, respectively.

According to the invention of claim 7, in addition to the effect of the invention of claim 6, when the feed chain 12B is rotated outward of the body, the second output shaft 68B and the drive sprocket 17A are separated, and the feed When the chain 12B is rotated inward to the body, the second output shaft 68B and the drive sprocket 17A are connected to each other. Therefore, the chain 12B is connected to the feed chain 12B during maintenance and inspection of the feed chain 12B. Since no power is transmitted, the safety of maintenance and inspection work is increased.

According to invention of Claim 8, in addition to the effect of invention of any one of Claims 1-7, in a harvesting threshing mode, the feed chain conveyance speed VF is synchronized with the harvesting conveyance speed VH, and a manual threshing mode In the present invention, the feed chain conveyance speed VF can be maintained at a predetermined conveyance speed.

According to invention of Claim 9, in addition to the effect of invention of Claim 8, when the mowing conveyance speed VH is more than the 1st set value VH1 preset, the mowing conveyance speed VH is 1st set value VH1. The ratio of the change amount of the feed chain conveyance speed VF to the change amount of the mowing conveyance speed VH can be made larger than that at the lower speed.

According to invention of Claim 10, in addition to the effect of invention of Claim 9, 2nd set value VH2 preset as feed cutting speed VH whose feed chain conveyance speed VF is higher than 1st set value VH1. ), The feed chain conveyance speed VF can be maintained at a predetermined third set value VF2.

1 is a left side view of the combine.
2 is a plan view of the combine.
3 is a left side view of the main portion of the threshing apparatus.
4 is a sectional view of principal parts of the threshing apparatus.
It is a principal part front view of a combine.
It is a principal part front view of a combine.
7 is an explanatory view of the attachment of the hydraulic continuously variable transmission for a feed chain.
8 is an enlarged cross-sectional view of part (a) of the hydraulic continuously variable transmission for a feed chain and an enlarged side view of (b).
It is a main part transmission mechanism figure of a combine.
10 is a connection diagram of a control device.
11 is an explanatory diagram of a first driving method of a feed chain.
12 is an explanatory diagram of a second driving method of a feed chain.
13 is an explanatory view of a first stop method of a feed chain.
14 is an explanatory diagram of a second stopping method of the feed chain.
It is a principal left side view of a conveying apparatus.
It is a principal part top view of a conveying apparatus.
It is a left side view of the manual threshing lever at the time of a normal harvest threshing operation.
18 is a left side view of the manual threshing lever in the manual threshing operation.
19 is a plan view of the manual threshing lever.
20 is an explanatory view of the attachment of another hydraulic continuously variable transmission for a feed chain.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring an accompanying drawing. In addition, although the direction is shown and demonstrated conveniently for ease of understanding, a structure is not limited by these.

1 and 2, the combine is provided with a traveling device 2 composed of a pair of right and left crawlers for the purpose of traveling on the soil surface below the base frame 1, The threshing apparatus 3 which threshes and sorts is provided in the upper left side, and the harvesting apparatus 4 which harvests the grain stem of a pavement is provided in front of the threshing apparatus 3. The grains threshed and selected by the threshing apparatus 3 are stored in the grain tank 5 provided in the right side of the threshing apparatus 3, and the stored grains are discharged | emitted outside by the discharge container 7. As shown in FIG. Moreover, the cockpit 6 in which an operator boards is provided in the upper right side of the base frame 1, and the engine room 8 which mounts the engine 62 is provided in the lower side of the cockpit 6.

(Cutting device)

The mowing device 4 includes a mowing rear frame 28, a mowing transmission case 29 which is horizontally arranged at the distal end of the mowing rear frame 28, and a connection frame installed upright from the mowing transmission case 29. It is provided in the harvesting frame 30 used as the main frame formed by 29A. The base of the harvesting rear frame 28 is biased to the right side of the transverse electric cylinder 36 pivotally supported on the upper left and right pairs of suspension stands (cutting supports) 35 and 35 installed on the base frame 1. It is installed at the site.

The harvesting device 4 is a grass dividing rod 31 for dividing the planting grain stem installed in the lower part of the front side, and a raising device 32 which raises and falls the planting grain stem installed in the rear of the grass dividing rod 31. , A cutting blade device 33 for cutting the bottom of the placing grain stem provided in the rear lower portion of the raising device 32, and installed in the rear of the raising device 32 and the cutting blade device 33, the threshing device (3) The conveying apparatus 34 which conveys toward the threshing part conveying apparatus 12 provided in the one side of () is provided. The conveying apparatus 34 is comprised from the lower conveyance apparatus 34A which conveys the lower side of a harvesting grain stem, and the ear tip conveying apparatus 34B which conveys the ear tip side, and conveys a threshing part from this conveying apparatus 34. In order to prevent falling of the grain stem at the time of taking over by the apparatus 12, in the front part inside (right side) of the front part of the threshing part conveying apparatus 12, the supply chamber 50 from the rear end of the conveying apparatus 34 is carried out. The support body 37 is provided over the front end of the.

At the rear end of the frame 4A of the harvesting device 4, as shown in FIG. 15, a bracket 38C for installing a front side holding rod and a grain stem for detecting a deformation amount of the front side holding rod. The bracket 38D for installing the sensor 34C is provided. In addition, the front end of the frame 4A is mounted on the connecting frame 29A provided upright on the left side of the mowing transmission case 29 of the mowing frame 30, and inclined so as to rise backwards from the front to the rear, and the rear end is fed. It faces the front side upper direction of the chain 12B.

The front side auxiliary holding rod is comprised with the upper side auxiliary holding rod which consists of a spring plate etc., and a lower side auxiliary holding rod. The front end of the upper auxiliary holding rod is attached to the bracket 38C mounted at the end of the frame 4A by a fastening member such as a bolt, and the rear end is provided after the start end of the feed chain 12B. have. In addition, the front end of the lower auxiliary holding rod is attached to the bracket 38C mounted at the end of the frame 4A by the fastening member such as a bolt so as to cover the upper auxiliary holding rod from the lower side, and the rear end thereof is the pinching rod 12A. It is installed up to the front side of the.

In addition, the width in the left and right directions of the upper auxiliary holding rod and the lower auxiliary holding rod is formed to be narrower than the width in the left and right directions of the feed chain 12B, and the lower auxiliary holding rod is the left and right outer plates of the feed chain 12B. Lies in between in between.

The grain stem sensor 34C is attached to a bracket 38D attached to the end of the frame 4A by a fastening member such as a bolt. As for the grain stem sensor 34C, as shown in FIG. 15, it is preferable to provide two grain stem sensors 34C and 34C in the front-back direction to the bracket 38D.

The grain stem sensor 34C arrange | positioned at the front side detects the presence or absence of grain stem handed over to the feed chain 12B from the conveying apparatus 34. As shown in FIG. That is, when there is a grain stem to be transferred from the conveying device 34 to the feed chain 12B, the rear end portion of the upper auxiliary holding rod moves upward, and the rear end portion of the upper auxiliary holding rod 34C is disposed on the front side. Press). On the other hand, when there is no grain stem, the rear end of the upper auxiliary holding rod is maintained in a state of being installed following the start end of the feed chain 12B.

The grain stem sensor 34C arrange | positioned at the back side detects the blockage of the grain stem handed over to the feed chain 12B from the conveyance apparatus 34. FIG. That is, when the grain stem taken over from the conveying apparatus 34 to the feed chain 12B is blocked by the front side of the feed chain 12B, the rear end part of a lower auxiliary holding rod moves toward upper direction, and the intermediate part of a lower auxiliary holding rod will be moved. The grain stem sensor 34C arrange | positioned at the back side is pressed. On the other hand, when there is no blockage between the grain stems, the rear end of the lower auxiliary holding rod keeps the state loaded on the upper side of the feed chain 12B. Moreover, it is preferable to switch the conveyance speed of the feed chain 12B especially according to the output value of 34C of grain stem sensors arrange | positioned at the back side.

15 and 16, the rear side auxiliary holding rod (auxiliary holding rod) which sandwiches the grain stem conveyed from the conveying apparatus 34 to the feed chain 12B at the end of the frame 4A with the feed chain 12B. 43 and the manual threshing restricting plate 40 for operating the mode switch 46 for switching between the normal cutting and the manual threshing operations instead of the mode switch 6B disposed on the quick-cover 50D described later. ) Is installed.

The front end portion of the rear auxiliary holding rod 43 made of a spring plate or the like is pivotally supported on the shaft 44A attached to the bracket 44 attached to the end of the frame 4A in the left and right direction, and is supported by the rear end. The portion is provided to the rear side along the lower side of the holding rod 12C, and is provided to the rear side than the front end of the holding rod 12C. The width in the left and right direction of the rear side auxiliary holding rod 43 is formed to be narrower than the width in the left and right direction of the feed chain 12B, and the rear side auxiliary holding rod 43 is the left and right outer side of the feed chain 12B. It lies between the plates. In addition, the shaft 44A is disposed in parallel with the support shaft 68D for driving the feed chain 12B and the support shaft of the long wheel 17B.

In addition, the rear side auxiliary holding rod 43 opens a quick cover 50D and moves the holding rod 12C upwards during maintenance and inspection work of the feed chain 12B. In order to secure this, it can be oscillated counterclockwise from the left side of the body about the axis 44A.

The manual threshing restricting plate 40 is provided on the front plate 41 made of a channel material having a substantially U-shape in cross section, and on a shaft 41B which is installed in the left and right directions attached to the rear end of the front plate 41. It is comprised with the back side plate 42 formed in the shape of the letter I of the cross section in which the front-end part was rocking | swivelly supported.

The front end of the front side plate 41 is pivotally supported on the shaft 44 supporting the front end of the rear side auxiliary holding rod 43, and the front surface of the shaft 44A of the bracket 44 on the outer surface of the left side plate of the front end. 41 A of substantially semi-circular arc shapes which press the mode switch 46 attached to the side lower side are attached. Moreover, between the both side plates of the rear end part of the front side plate 41, the shaft 41B which is provided in the left-right direction which supports the front-end part of the rear side plate 42 so that rocking | moving is attached is attached. In addition, in this embodiment, although the front plate 41 and the rear side auxiliary holding rod 43 are supported on the same shaft 44A, you may support to the other shaft.

As shown in FIGS. 17-19, the operation part 41A is formed in semi-circular arc shape (a circular arc shape which goes from the position of 6 o'clock to the position of 12 o'clock in the state shown in FIG. 17) toward the front side, The center of the semi-circular arc shape is located away from the center of the shaft 44A (offward toward the front side with respect to the shaft 44A in the state shown in FIG. 17). In addition, as shown in FIG. 17, when the manual threshing restricting plate 40 is located in a regulated state, the operating part 41A has a lower side of the operating part 41A and a terminal part 46A of the mode switch 46. As shown in FIG. In order to prevent the contact between the lower part of the operation part 41A and the terminal part 46A of the mode switch 46, it arrange | positions so that it may be arrange | positioned, and as shown in FIG. In the non-regulated state, the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 contact with each other so that the upper portion of the operating portion 41A contacts the terminal portion 46A of the mode switch 46. It is arranged to press.

Further, as the manual threshing regulating plate 40 swings in the counterclockwise direction, the gap between the upper portion of the operating portion 41A and the terminal portion 46A of the mode switch 46 is narrowed, so that the upper portion of the operating portion 41A is in the mode. The terminal portion 46A of the switch 46 is pressed more strongly.

The shape of the operating portion 41A is not limited to the above-described shape, but is formed in a 1/4 arc shape (arc from 9 to 12 o'clock) toward the front side, and the center of the quarter arc shape is formed. 44A), which is biased toward the front side of the shaft center, and is formed of a quarter arc shape (a circular arc shape from 9 to 12 o'clock) toward the front side and a straight portion inclined downward from the lower end of the arc to form the quarter arc shape. The center can be made into the shape etc. which shifted to the front side rather than the shaft center of 44 A of shafts.

As a result, when the front side plate 41 is swung in the counterclockwise direction from the left side of the body, centering on the shaft 44A, the traveling device (in the case of switching from the ordinary cutting threshing operation to the manual threshing operation) Even when vibrations or the like caused by the traveling of 2) propagate to the front plate 41, the front plate 41 is swung in the counterclockwise direction about the axis 44A. The gap between the terminal portion 46A and the operating portion 41A of the front plate 41 becomes narrow, and the terminal portion 46A of the mode switch 46 can be reliably pressed to maintain the ON state.

On the other hand, the mode switch 46 is detected when the front side plate 41 is swung in the clockwise direction from the left side of the base about the axis 44A to switch from the manual threshing operation to the normal cutting threshing operation. The state can be changed slowly from the ON state to the OFF state.

In addition, when switching from the ordinary harvesting threshing operation to the manual threshing operation, the operator is warned by a monitor or the like arranged on the front surface of the cockpit 6 in order to maintain the safety of the assistant operator.

The mode switch 46 detects the switching from the normal threshing operation to the manual threshing operation mode by contact between the terminal portion 46A of the mode switch 46 and the operating portion 41A of the front plate 41. Detection sensors can also be used. However, in order to prevent the detection state (on / off state) from becoming unstable due to vibration generated by traveling of the traveling device 2 or the like, when the terminal portion 46A of the mode switch 46 is displaced by a certain level or more, In the case where pressure is applied, it is preferable to use a displacement sensor and a decompression sensor for detecting switching from a normal cutting threshing operation to a manual threshing operation mode or the like.

When a displacement sensor is used as the mode switch 46, the output value according to the displacement amount which is pressed by the operation part 41A and the terminal part 46A displaces can be output.

Thus, when the displacement sensor is used as the mode switch 46, the mode corresponding to the rocking position of the front plate 41, which previously switches the control device 85 from the ordinary harvesting threshing operation to the manual threshing operation, is described. The terminal portion of the mode switch 46 corresponding to the displacement amount (threshold A) of the terminal portion 46A of the switch 46 and the swinging position of the front plate 41 for switching from the manual threshing operation to the normal cutting threshing operation. By setting the displacement amount (threshold B) of 46A, the switching of the work can be easily changed by changing the thresholds A and B even when the vibration or the like due to the running of the traveling device 2 is significantly changed by the soil surface. It is possible to switch the work stably.

The front end of the rear plate 42 is pivotally supported by the shaft 41B mounted on the rear end of the front plate 41, and the front part 42A inserted inside the front plate 41 is The cross section is formed in the shape of a letter I, and the rear part 42B, which is installed from the rear end of the front plate 41 toward the rear, is also formed in the shape of a letter I.

In a normal mowing threshing operation, the manual threshing restricting plate 40 is swung in a clockwise direction about the axis 44A, and is formed between the rear end of the frame 4A and the front end of the holding rod 12C. When the threshing operation is performed, the manual threshing limiting plate 40 is swung in the counterclockwise direction about the axis 44A, and the rear end of the frame 4A It becomes an unregulated state which opens the space above the rear side auxiliary holding rod 43 formed between the front ends of the holding rod 12C.

That is, the manual threshing regulating plate 40 rotates downward, and the space | interval of the rear part of this manual threshing regulating plate 40 and the front part of the pinching rod 12A is reduced, and the manual threshing grain stem to the feed chain 12B is carried out. The regulated state in which the supply of oil is regulated, the manual threshing regulating plate 40 rotates upward, and the distance between the rear part of the manual threshing regulating plate 40 and the front part of the pinching rod 12A is enlarged to feed the feed chain 12B. ) Is configured to switch to an unregulated state that allows the supply of the manual threshing grain to the threshing grain.

In the regulated state, in a plan view, the front plate 41 is installed rearward from the shaft 44A to cover the start end portion of the feed chain 12B, and the rear plate 42 is the front plate. It is provided rearward from 41 and reaches the rear of the front end of the holding rod 12C, and is disposed on the left side of the feed chain 12B. Moreover, in the side view, the front side plate 41 is arrange | positioned inclined so that the back may be gentle upward from the shaft 44A, and the rear side plate 42 is gentle toward the rear side from the front side plate 41. It is arrange | positioned inclined so that a back may go up, and it reaches | attains the rear part of the front end part of the holding rod 12C.

The front plate 41 maintains the posture in a regulated state by the lower stopper 41C provided at its middle part contacting the upper edge of the supporting member 43A provided at the base of the auxiliary holding rod 43, and the rear plate 42 maintains the posture in a regulated state by bringing the front end portion of the rear side plate 42 into contact with the rear side of the front side plate 41. In addition, in order to increase the safety of the assistant worker, the front end of the front plate 41 is preferably disposed on the front side than the front end of the feed chain 12B, and is placed on the upper side of the conveying device 34 to prevent scattering of dust and the like. It is preferable to arrange | position rearward rather than the rear end of the arranged front side dustproof cover 49A.

Moreover, in order to prevent protrusion from a base body, it is preferable to arrange | position the right side surface of the front side plate 41 inside the left end side of the rear side dust cover 49B arrange | positioned above the conveying apparatus 34. As shown in FIG. In addition, as shown in FIG. 17, since the back side plate 42 can be rocked about the axis 41A of the rear end part of the front side plate 41, manual threshing restriction | limiting is not carried out without removing the back side dust cover 49B. The plate 40 can be rocked in the vertical direction.

In the non-regulated state, when viewed from the side, the front side plate 41 is inclined so that the front rises forward from the shaft 44A, and the rear side plate 42 of the front side plate 41 It is provided substantially horizontally toward the front from the axis 41B. The front plate 41 maintains the posture in an unregulated state by bringing the upper surface of the front plate 41 into contact with the upper stopper 44C installed upright on the bracket 44, and the rear plate 42 is the rear plate. The upper surface of the rear part 42B of 42 is brought into contact with the rear part of the front plate 41 to maintain an unregulated posture. Moreover, in order to prevent the fluctuation | variation of the regulated state attitude | position and the non-regulated state attitude | position of the front side plate 41 by the propagation of a vibration, etc., and to fluctuate the front side plate 41 easily, It is preferable to bias the front plate 41 in a regulated and non-regulated posture by connecting the left side of the rear portion and the front side plate 41 with a spring-shaped spring while straddling the shaft 44A.

Moreover, in order to maintain the attitude | position of the grain stem handed over to the threshing part conveyance apparatus 12 from the conveyance apparatus 34, it shifted to the right side of the upper surface or lower surface of the support body 37 facing the ear tip conveyance apparatus 34B. An auxiliary conveying apparatus can also be arrange | positioned at a site | part.

The auxiliary conveying apparatus is provided with a belt with a lug moving from the front side to the rear side and an adjacent belt in order to convey the tip of the grain stem inherited from the tip end conveying apparatus 34B to the feed chain 12B. In addition, the auxiliary conveying apparatus rotates the rotation of the counter shaft 71 which will be described later through the output shaft 10B of the hydraulic continuously variable transmission ("hydraulic continuously variable transmission" in claim) 10 for the feed chain. It is preferable that the moving speed of the attached belt or the like be the same as the moving speed of the feed chain 12B. Instead of the hydraulic continuously variable transmission (hydraulic continuously variable transmission) 10 for a feed chain, a hydraulic mechanical continuously variable transmission configured by combining a hydrostatic continuously variable transmission and a planetary gear may be used.

As shown in FIGS. 3-5, the suspension stand 35 on the left side is provided above 35 A of bases which stood upright in the base frame 1. As shown in FIG. Feed chain rotation shaft 35B which is installed in the front part of the left side of suspension stand 35 in the up-down direction rotatably supporting the base of the transverse transmission frame 35C which axially supports the left side of transverse transmission cylinder 36, and is supported. Is installed. Moreover, the transverse electric cylinder 36 is rotated centering around the feed chain rotation shaft 35B, and the maintenance and inspection work of apparatuses, such as the grass dividing rod 31 and the raising device 32, of the mowing device 4 is easy. In order to achieve this, the transverse transmission frame 35C is formed in an arc shape having a convex portion downward from the base to the distal end when viewed from the front. In addition, as mentioned later, the threshing part conveyance apparatus 12 which conveys grain stem also rotates centering around the feed chain rotation shaft 35B.

The suspension stand 35 on the right side is provided above the base 35A installed on the base frame 1. A support member 35D for axially supporting the right side of the transverse electric cylinder 36 is provided at the upper end of the suspension stand 35. The support member 35D is composed of a front side support member and a rear side support member divided into substantially semi-circular arcs. When axially supporting the right side of the transverse electric cylinder 36, the front and rear support members are engaged, and the transverse electric cylinder 36 is moved to the feed chain rotation shaft to maintain the mowing device 4 or the transmission 65. When moving the harvesting | reaping apparatus 4 to the left side by rotating centering around 35B), the transverse electric cylinder 36 is pulled forward by disconnecting the front-back side support member. Moreover, in order to raise rigidity with respect to deformation | transformation of the left and right suspension stands 35, 35, etc., the connection frame 35E is provided in the middle part of the up-down direction of the left and right suspension stands 35,35.

The rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 through the pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66 and to the traveling hydraulic continuously variable transmission 66. The motorized rotation is applied to the pulley 36B supported at the right end of the transverse transmission shaft 36A built in the transverse transmission cylinder 36 via a pulley (not shown) supported on the output shaft of the traveling hydraulic continuously variable transmission 66. Electric motor rotates the transverse electric cylinder 36 and the transverse electric shaft 36A. In addition, the rotation motorized by the transverse electric shaft 36A raises the cutting device 32, the cutting blade device 33, and the conveying device 34 of the mowing device 4 through the electric shaft (not shown) incorporated in the frame 28. ) And the like.

Further, the rotation of the engine 62 is transmitted to the traveling hydraulic continuously variable transmission 66 through the pulley 66B supported by the input shaft of the traveling hydraulic continuously variable transmission 66, and the traveling hydraulic continuously variable transmission 66 The swing transmitted to) is transmitted to the crawler on the left and right of the traveling device 2 via the transmission 65.

Threshing device

As shown in FIG. 4, the threshing apparatus 3 is equipped with the processing chamber 50 which threshes grain stems in the upper part of a front side, and the selection chamber which selects the grain threshed below the processing chamber 50 (selection part). 51 is provided.

In the barrel 50, a barrel 55 having a plurality of barrels is supported by a barrel shaft axially supported by the front and back walls 50A and 50C. Then, the grain stem supply opening 26A is opened in the lower left of the front wall 50A of the feeding chamber 50, and the threshing opening 26B is opened in the lower portion of the left wall 50B along the barrel 55. A hung mouth 26C is opened in the lower left of the barrier 50C. Moreover, the threshing part conveyance apparatus 12 which clamps the bottom of a grain stem along the threshing opening 26B, and conveys back is provided in the left side of the feeding chamber 50, and the threshing conveyed by the threshing part conveying apparatus 12 After the finished grain granules are turned over and conveyed to the rear conveying apparatus 58 provided at the rear of the threshing part conveying apparatus 12, they are cut by the pair of emptying cutters 59 and discharged to the outside. do.

The rocking | fluctuation sorting apparatus 52 is provided in the upper part of the sorting chamber 51, The 1st air port 53A which blows air to the sheave of the front part of the shaking-separating apparatus 52, and the rocking | fluctuation are provided in the lower part of the sorting chamber 51, The first accommodating trough 53B for collecting the grains leaking from the sorting device, the second blowhole 53C for blowing air to the sieve of the rear portion of the swing sorting device, the diameter of the sheet leaking from the rocking sorting device, and the like. The 2nd receiving trough 53D which collect | recovers this attached grain (2nd thing) is provided sequentially from the front side. The grain recovered from the first accommodating trough 53B is transferred to the grain tank 5 by the first conveying spiral 53b embedded in the first accommodating trough 53B, and recovered from the second accommodating trough 53D. The grains and the like are transferred to the processing chamber 2 by the feeding spiral 53d built in the housing trough 53D.

The rear part of the right side of the processing chamber 50 communicates with the dust collection chamber, and inside the dust collection chamber, the dust treatment cylinder 57 having a screw blade body on the outer circumferential surface is axially supported in the front-rear direction, and on the front side of the dust collection chamber 2 The second treatment chamber for treating and reducing the burned water is installed. Inside the second processing chamber, a second processing cylinder 56 having an intermittent spiral blade on its outer circumferential surface is axially supported. Moreover, on the rear upper side of the rocking | flux sorting shelf, the dust pan 48 which draws rice straw waste etc. which generate | occur | produce at the time of threshing and sorting, and discharges it out of a gas is arrange | positioned.

Threshing unit conveying device

The threshing part conveying apparatus 12 is equipped with the clamping rod 12A located in the upper side, and the feed chain 12B located in the lower side, as shown to FIG. 3, FIG. The pinching rod 12A is biased toward the feed chain 12B side by biasing means 14 such as a spring with respect to the barrel cover 50D of the chamber 50. The feed chain 12B is wound around the long mounting wheels 17B and 17B rotatably supported at the front and rear ends of the upper chain rail 18A, and the drive sprocket 17A provided between the long mounting wheels 17B and 17B, It is an endless chain driven. The feed chain 12B on the working side placed above the upper chain rail 18A sandwiches the clamping rod 12A and the grain stem in the process of moving from the front side to the rear side. Moreover, in order to prevent winding to the terminal part etc. of the feed chain 12B of the grain stem conveyed, it is preferable to use the idle sprocket by which the winding prevention plate 17D was provided in the both sides at the rear mounting wheel 17B. .

On the side of the barrel cover 50D, an auxiliary worker who is performing manual threshing operation easily adjusts the speed (feed chain conveyance speed in claim) VF1 of the feed chain 12B during manual threshing operation, thereby making workability easier. In order to increase the speed, the speed adjusting dial 6A is provided. Further, in order to efficiently adjust the speed of the speed VF of the feed chain 12B according to the amount of manual threshing grain stem, the speed adjustment dial 6A of the rear side auxiliary holding rod 43 which puts the manual threshing grain stem upwards. The speed adjusting dial 6A may be arranged on the side panel of the cockpit 6 in order to efficiently assist assistants unfamiliar with the operator who sits around or sits in the cockpit 6.

In addition, the speed VF of the feed chain 12B in manual threshing operation to the gas frame 1 in front of the threshing apparatus 3 together with the speed regulating dial 6A or instead of the speed regulating dial 6A. It is also possible to provide a speed adjustment pedal 45 for speed adjustment.

In the side view, the pinching rod 12A is provided with the inclination which goes back along the threshing opening 26B from the grain stem supply port 26A of the feeding chamber 50 to 26G of the drainage ports. The upper chain rail 18A which puts the feed chain 12B of the acting side on the upper side is inclined back upward from the front end of the transverse transmission cylinder 36, and then inclined gradually upward to incline the rear side of the feeding chamber 50. After it reaches the front of the grain stem supply port 26A, it inclines so that the back side may go up along the threshing port 26B from the grain stem supply port 26A of the feeding chamber 50 to the hungry port 26C facing the pinching rod 12A. . Thereafter, after extending horizontally from the hungry port 26C to the rear, the back is inclined downward to reach the rear end of the front end of the tip end conveying device 34B. In addition, in order to easily change the front-back direction length of the threshing part conveying apparatus 12 according to the change of the number of cutting strands of the harvesting | reaping apparatus 4, the upper chain rail 18A is divided | segmented into the front-back direction division | segmentation. It is preferable to set it as a structure.

The lower chain rail 18B, which puts the non-action side feed chain 12B on the upper side, is inclined upward from the upper end of the counter shaft 71 that transmits rotation of the engine 62 to the drive sprocket 17A. It is reaching the end. In addition, the rear end of the lower chain rail 18B is in front of the rear mounting wheel 17B and is provided below the hungry port 26C.

The front end of the lower chain rail 18B is detachably provided with a guide 18D for guiding the non-acting side feed chain 12B to the drive sprocket 17A provided below the front end of the lower chain rail 18B. It is. The guide 18D is provided above the countershaft 71, and is formed in substantially 1/4 circular shape. In addition, a cover (not shown) is preferably provided above the guide 18D in order to prevent contamination of the counter shaft 71 due to falling of oil or the like.

On the lower side of the lower chain rail 18B, a support frame 19 for supporting the upper chain rail 18A and the lower chain rail 18B is provided by the rail connecting plate 18C. In other words, the feed chain 12B is supported by the support frame 19. In addition, in the connecting plate 18E connected to the upper chain rail 18A and the lower chain rail 18B, straw straw falling from the feed chain 12B during grain stem conveyance falls to the driving unit of the sorting chamber 51. A straw shaving guide plate (not shown) is attached to prevent it.

As shown in FIGS. 3 and 5, the front end of the support frame 19 is installed on a plate 19A provided by a bolt or the like on the bracket 19B, and the bracket 19B is provided on a suspension stand 35 on the left side. The upper and lower ends of the chain rotation shaft 35B are rotatably provided. In addition, the feed chain rotation shaft 35B is fed to the feed chain 12B in order to reduce the inflow into the gas inside of the tip end portion of the feed chain 12B when the feed chain 12B is rotated around the feed chain rotation shaft 35B. ) Is installed in the vicinity of the rear side of the long mounting wheel 17B on the front side of which is wound.

The support frame 19 is an input shaft of the hydraulic continuously variable transmission 10 for the feed chain from the front end when viewed from the side in order to prevent interference with the hydraulic continuously variable transmission (hydraulic continuously variable transmission) 10 or the like for the feed chain. After extending backward between 10A and the output shaft 68B of the gearbox 68, it curves approximately 90 degrees in front of the 1st transmission motor 10C, and extends upwards. And after extending the front of the countershaft 71 toward upward, it inclines so that a back may go up along the lower side of the lower chain rail 18B from the lower side of the guide 18D, and the front-back direction of the lower chain rail 18B may be approximately. It reaches the middle part.

Thereby, when performing maintenance and inspection of the feed chain 12B, the hydraulic continuously variable transmission 10 for feed chains, etc., the support frame 19 is rotated centering around the feed chain rotation shaft 35B and a feed chain is carried out. This can be easily performed by separating the rear portion of the 12B from the main body of the threshing apparatus 3. In addition, the feed chain pivot shaft 35B is placed on the front side of the feed chain hydraulic continuously variable transmission 10 so as to be easily maintained and inspected by the hydraulic continuously variable transmission 10 for feed chain. .

As viewed from the side, the front mounting wheel 17B is provided near the front of the horizontal shaft transmission cylinder 36 which rotates the rotation of the engine 62 to the harvesting apparatus 4, as shown in FIG. The side mounting wheel 17B is provided in the rear vicinity of the front end of the ear tip conveying apparatus 34B. The drive sprocket 17A is arranged between the front and rear mounting wheels 17B and 17B in the front and rear direction, and is disposed on the front mounting wheel 17B side, and the horizontal shaft transmission cylinder 36 and the feed chain 12B are disposed. In the center of the counter shaft 71 for transmitting the rotation of the engine 62 is located. Moreover, in the up-down direction, it is located in the substantially center of the support frame 19 extended toward the back which supports the counter shaft 71, the lower chain rail 18B, etc. Moreover, the tension sprocket 17C in which the base was supported by the drive shaft 68D mentioned later is provided between the front mounting wheel 17B and the drive sprocket 17A.

As a result, the feed chain 12B moves upward from the drive sprocket 17A, and then moves along the tension sprocket 17C to reach the front mounting wheel 17B, and the front mounting wheel 17B. ), The upper side of the upper chain rail 18A is moved toward the rear mounting wheel 17B. Thereafter, the feed chain 12B moves from the rear mounting wheel 17B toward the front lower chain rail 18B, and then moves the upper side of the lower chain rail 18B forward from the rear end of the lower chain rail 18B. After moving to the guide 18D on the side, it moves along the guide 18D and has reached the drive sprocket 17A.

As shown in FIG. 6, the rotation of the engine 62 is transmitted to the hydraulic continuously variable transmission 10 for the feed chain via the counter shaft 71, and after the gear box 68 is increased or decreased, the threshing part conveying apparatus 12 is rotated. Is driven by an output shaft 68B connected to a drive sprocket 17A.

Both side portions of the counter shaft 71 are axially supported by a pair of support members 80 which are installed in a vertical direction in the vertical portion of the front wall 50A of the threshing apparatus 3 toward the front. The rotation of the engine 62 is transmitted to the counter shaft 71 via the pulley 71A supported at the right end of the counter shaft 71.

The rotation transmitted to the counter shaft 71 is transmitted to the barrel 55 via the pulley 71C and the belt 92 supported on the left side of the pulley 71A, and is supported on the left end of the counter shaft 71. It is transmitted to the input shaft 10A of the hydraulic continuously variable transmission 10 for a feed chain via the pulley 71D, the belt 93, etc. supported by the right side of the pulley 71E. The rotation transmitted to the input shaft 10A of the hydraulic continuously variable transmission 10 for the feed chain is transmitted to the gearbox 68 via the output shaft 10B as shown in FIG. 8 by the gear of the gearbox 68. It is accelerated and decelerated to be transmitted to the output shaft 68B. The rotation transmitted to the output shaft 68B is transmitted to the drive sprocket 17A of the feed chain 12B via the coupling 68C. The drive sprocket 17A is rotatably supported by the drive shaft 68D.

When the drive shaft 68D is supported by the plate 19C provided on the right side of the support frame 19, and the support frame 19 is rotated with respect to the feed chain rotation shaft (fixed shaft) 35B, the coupling 68C The output shaft 68B and the drive sprocket 17A are disconnected, and the rotation of the engine 62 is not transmitted to the drive sprocket 17A so that the feed chain 12B, guide 18D, and the like can be safely exchanged. Can be. Instead of the coupling 68C connecting the output shaft 68B and the drive shaft 68D, a clutch and a claw clutch engaged with the opposing output shaft 68B and the end portions of the drive shaft 68D may be provided.

As shown in FIG. 7, the gearbox 68 is the right side of the rear side plate (support frame) 11B which was installed to the front and installed in the up-down direction of the front wall 50A of the threshing apparatus 3 toward the front. Installed in In addition, in order to effectively utilize the space at the front side of the threshing apparatus 3, a hydraulic continuously variable transmission 10 for a feed chain is attached to the left side of the gearbox 68, and a hydraulic continuously variable transmission for a feed chain ( On the rear side of 10), a first speed change motor 10C for rotating the trunnion shaft 10F of the hydraulic continuously variable transmission 10 for a feed chain is provided.

Moreover, as shown in FIG. 20, the 1st transmission motor 10C which rotates the trunnion shaft 10F of the hydraulic continuously variable transmission 10 for feed chains to the rear side of the hydraulic continuously variable transmission 10 for feed chains, and The second speed change motor 10E for rotating the trunnion shaft 10F at a high speed may be provided in parallel with the output and the like than the first speed change motor 10C.

The gear 10c of the 1st transmission motor 10C provided in the base frame 1, and the 2nd transmission motor 10E are provided in the front-end | tip part of 10 G of fan-shaped gears whose base end is supported by the trunnion shaft 10F. Gear 10e is engaged. The control unit 85, which will be described later, drives the first shifting motor 10C in the normal mowing mode to rotate the trunnion shaft 10F, and the second shifting motor 10E in the manual threshing mode. Rotate the trunnion shaft 10F. In addition, in the mowing mode, the second transmission motor 10E free rotates, and in the manual threshing mode, the first transmission motor 10C free rotates.

The hydraulic continuously variable transmission 10 and the gearbox 68 for the feed chain may be installed in the gas frame 1, and the first gearbox 10C and the second gearbox 10E may be installed in the gearbox 68. Alternatively, the pump portion having the input shaft 10A and the motor portion having the output shaft 10B may be used instead of the hydraulic continuously variable transmission 10 for the feed chain having a unitary structure. Hydraulic continuously variable transmissions may be used.

In addition, the first shifting motor 10C shifts the hydraulic continuously variable transmission 10 for a feed chain in conjunction with the drive speed of the harvesting device 4. Specifically, it is preferable to detect the speed of rotation output from the traveling hydraulic continuously variable transmission 66 and transmitted to the harvesting device 4, and to operate the first speed change motor 10C in accordance with this rotation speed.

The front end of the rear plate 11B and the rear end of the front plate 11A provided in the connecting frame 35E of the left and right suspension stands 35 and 35 are loosely inserted by pins to reduce vibration. Connected. In addition, the rear part of the rear side plate 11B is connected by the fastening means, such as a bracket and a bolt by the counter shaft 71 side. Moreover, the harvesting position sensor 36S which detects the rotation position of the harvesting rear frame 28 up-down direction is provided in the lower side of the horizontal transmission shaft 36A.

On the left side of the base 35A on the right side, as shown in FIG. 6, in order to shorten the hydraulic system, opening and closing of the hydraulic system such as the hydraulic continuously variable transmission 10 for a feed chain and the hydraulic continuously variable transmission 66 for driving is controlled. A control valve 9A is provided, and on the right side of the control valve 9A, an oil tank 9B for supplying oil to a feed chain hydraulic continuously variable transmission 10 and a traveling hydraulic continuously variable transmission 66 is installed. It is.

In order to effectively utilize the space below the threshing apparatus 3 and to prevent the interference of the feed chain 12B, the belt 93, etc. at the time of rotation of the feed chain 12B, the hydraulic continuously variable transmission apparatus 10 for a feed chain is shown. The input shaft 10A, the output shaft 10B, and the output shaft 68B of the gear box 68 are provided in a vertically arranged state.

In order to prevent the pressure loss of the hydraulic pressure, the input shaft 10A of the pump portion of the hydraulic continuously variable transmission 10 for a feed chain is installed below the output shaft 10B, and the hydraulic continuously variable transmission 10 for a feed chain and a control valve ( 9A) and the hydraulic path are shortened.

In order to facilitate the winding of the feed chain 12B, the output shaft 68B of the gearbox 68 is installed above the output shaft 10B of the hydraulic continuously variable transmission 10 for the feed chain, and the feed chain 12B The length is short.

(Narrow guide)

On the left side (not drawn side) of the combine, as shown in FIG. 2, the guide 20 is provided which can switch to the protruding posture which protrudes to the outside of a combine, and the storing posture accommodated inside.

The guide 20 is composed of a front portion 20A and a rear portion 20B connected in an indirect state, and the front end portion of the front portion 20A is the front end portion of the dichotomy frame on the rear side of the leftmost dividing body 31. Pivotally supported, and the rear end of the rear part 20B is supported by the support member provided in the left side part of the base frame 1 so that the movement to the front-back direction is possible. In addition, the guide 20 is switched into the protruding posture and the storing posture by switching means (not shown) having a link structure.

In addition, when the mode switch 6B is connected and in the manual threshing mode from the ordinary mowing mode, the guide 20 is held in the storage position in order to prevent contact of the guide 20 into the auxiliary worker performing the manual threshing operation. do.

(Motor mechanism)

Next, the transmission mechanism of this embodiment is demonstrated. As shown in FIG. 9, the rotation of the engine 62 is driven by the first path A transmitted to the feed chain hydraulic continuously variable transmission 10 and the second path transmitted to the traveling hydraulic continuously variable transmission 66. (B) and branched to the third path (C) to be transmitted to the gear box 39 in front of the grain tank (5) and is driven.

In the first path A driven by the hydraulic continuously variable transmission 10 for the feed chain, rotation of the engine 62 is carried out by the pulley 70A supported by the crankshaft (output shaft) 70, the belt 90, The electric motor is transmitted to the counter shaft 71 via a pulley 71A supported by the counter shaft 71. Moreover, the threshing clutch 90A which connects and interrupts the transmission to the electric downstream side rather than the belt 90 is provided in the 1st path A. As shown in FIG.

The rotation of the counter shaft 71 is transmitted to the second processing cylinder 56 and the exhaust treatment cylinder 57 via the pulley 71B, the belt 91, and the like, and the pulley 71C, the belt 92, and the like. It is transmitted to the barrel 55 and the cargo conveying device 58 through the. The counter shaft 71 is rotated through the pulley 71D, the belt 93, and the input shaft 10A via the pulley 10D supported by the input shaft 10A of the hydraulic continuously variable transmission 10 for a feed chain. It is powered by). The counter shaft 71 is driven by the pulley 71E and the belt 94 supported on the left side of the pulley 71D, the first tuyere 53A, the first feed spiral 53b, and the second tuyere 53C. ), The number 2 feed spiral 53d, the dust exhaust fan 48, the swing sorting device 52, and the exhaust height cutter 59 are driven.

The rotation of the input shaft 10A is transmitted to the gearbox 68 via the output shaft 10B, and after being accelerated and decelerated by a plurality of gears 68A built in the gearbox 68, the shaft is supported by the gearbox 68. It is transmitted to the output shaft 68B.

In addition, the gearbox 68 is provided with a feed chain speed sensor 10S for measuring the rotational speed of the gear 68A provided on the output shaft 10B of the hydraulic continuously variable transmission 10 for a feed chain.

The rotation of the output shaft 68B is transmitted to the drive shaft 68D through the coupling 68C, and to the feed chain 12B through the drive sprocket 17A supported at the left end of the drive shaft 68D. In addition, in order to easily rotate the feed chain 12B around the feed chain pivot shaft 35B which is mounted on the suspension stand 35 on the left side, as shown in FIG. 5, the gas is lower than the center of the feed chain 12B. The center of the feed chain rotation shaft 35B is provided inside, and the feed chain rotation shaft 35B is vertically installed in the vertical direction. As shown in FIG. 6, the left end of the output shaft 68B is the counter shaft 71. The drive sprocket 17A is also supported on the left side rather than the left end of the pulley 71E.

The left side of the cockpit 6 is provided with a main gear lever 16 for remotely operating the hydraulically variable transmission 66 for driving, and a rear side of the main gear lever 16 has a transmission 65 according to a collapsed state between the grains. A sub transmission lever 15 is provided for switching a stepped sub transmission device provided in the transmission mechanism. The main gear lever 16 is provided with a speed increase switch 16A for remotely operating the hydraulic continuously variable transmission 10 for a feed chain, and a deceleration switch 16B. Press and hold the speed increase switch 16A for at least 2 seconds to change the rotation of the output shaft 10B of the hydraulic continuously variable transmission 10 for the feed chain to the maximum rotation speed, and press the speed increase switch 16A shortly for about 1 second. The rotation of the 10B can be speeded up step by step. Similarly, when the deceleration switch 16B is pressed and held for about 2 seconds or more, the rotation of the output shaft 10B of the hydraulic continuously variable transmission 10 for the feed chain can be changed to the minimum rotation speed, and the deceleration switch 16B is shortened for about 1 second. When pressed, the output shaft 10B can be rotated at low speed in steps. The speed increase switch 16A and the speed reduction switch 16B are collectively referred to as a speed change switch S. FIG. In addition, a lower speed lever position sensor 16S for measuring a shift position of the lower speed lever 16 is installed at a lower portion of the lower speed lever 16, and a lower speed shift lever 15 is provided at a lower portion of the lower speed lever 15. An auxiliary shift lever position sensor 15S for measuring the shift position of is provided.

In the second path B transmitted to the traveling hydraulic continuously variable transmission 66, the rotation of the engine 62 is driven by the pulley 70B supported by the crankshaft 70, the belt 96, and the traveling hydraulic type. It is input to this traveling hydraulic continuously variable transmission 66 via the pulley 66B supported by the input shaft of the continuously variable transmission 66.

The rotation of the input shaft of the traveling hydraulic continuously variable transmission 66 is transmitted to the transmission 65 through the output shaft of the traveling hydraulic continuously variable transmission 66, and after being increased and decelerated by a plurality of gears built into the transmission 65. It is transmitted to the traveling device 2 via the left and right axles 65A supported by the transmission 65 and the drive wheel 65B fixed to the tip end of the axles 65A. Further, the rotation of the output shaft of the traveling hydraulic continuously variable transmission 66 is from the output shaft 65C outputted from a portion above the sub transmission device in the transmission path in the transmission 65, and the tip end of the output shaft 65C. It drives to the pulley 36B supported by the right end of the transverse electric shaft 36A via the output pulley 65D and the transmission belt 65E attached to it. A mowing clutch 65F is formed in the transmission belt 65E as a configuration for biasing the tension roller.

That is, the rotation of the engine 62 transmitted to the input shaft of the traveling hydraulic continuously variable transmission 66 increases and decreases by the traveling hydraulic continuously variable transmission 66 and branches, thereby branching one side to the left and right supported by the transmission 65. Is driven to the crawler of the traveling device 2 via 65 A of the axles, and the other side is driven to the raising device 32, the conveying device 34, etc. of the mowing device 4 via the transverse electric shaft 36A. , The traveling speed V of the traveling device 2, the raising speed of the raising device 32 of the harvesting device 4 and the conveying speed of the conveying device 34 (lowing conveying speed in the claim) (VH ) Is determined with a certain relationship. For example, when the traveling speed V of the traveling device 2 is made high, the rising speed of the raising device 32 of the harvesting device 4 and the conveying speed VH of the carrying device 34 are also determined. When it becomes high speed and the traveling speed V of the traveling apparatus 2 is made into low speed, the raising speed of the raising device 32 of the harvesting | reaping apparatus 4, and the conveyance speed VH of the conveying apparatus 34 also become Slow speed. In addition, the travel speed sensor 66S and the conveyance speed sensor 34S which measure rotation speed are provided in 65 A of axles, and 36 A of horizontal transverse shafts, respectively.

In addition, the left and right side clutch gears 65H are axially coupled to and separated from the left and right sides of the center gear 65G provided in a portion below the sub transmission in the transmission path in the transmission 65. A claw clutch type left and right side clutch 65I is formed between this center gear 65G and left and right side clutch gear 65H, respectively. The left and right side clutch 65I is engaged with the left and right axle gears attached to the bases of the left and right axles 65A.

The left and right side clutch 65I slides the side clutch gear 65H in left and right directions by a shifter (not shown) which is operated by left and right tilting operation of the steering lever disposed in front of the cockpit 6 so that the center gear ( 65G), the motor is cut off.

In addition, the left and right side clutch 65I is interlocked with the stepping operation of the racing pedal 22 disposed on the front lower step of the cockpit 6, and when the racing pedal 22 is stepped on, the left and right side clutch 65I The center gear 65G and the side clutch gear 65H are separated through the side clutch 65I, and the rotation of the engine 62 is not transmitted to the axle 65A. On the other hand, when the pedal pedal 22 is released, the center gear 65G and the side clutch gear 65H are engaged through the left and right side clutches 65I, and the rotation of the engine 62 is rotated to the axle 65A. Electric motor

When one side of the pavement is mowed to the boundary of the head, the main gear lever 16 is operated to the neutral position and stopped, and the center pedal 65G and the side are pushed through the side clutch 65I by stepping on the racing pedal 22. The engagement of the clutch gear 65H is released to stop the rotation of the axle 65A.

When the main gear lever 16 is moved to the forward side again with the combine stopped, the output shaft 65C is driven by the output of the traveling hydraulic continuously variable transmission 66, and the mowing device 4 is carried out via the mowing clutch 65F. ) Is driven. At this time, since the left and right side clutches 65I are shut off, the traveling device 2 is not driven forward and maintains the stopped state. With this configuration, the placing grain stem in the state which entered the harvesting device 4 in the state where the harvesting advances to the head boundary and is stopped can be harvested by the operation of the racing pedal 22 and the main gear lever 16.

In addition, the mowing clutch 65F can be linked to the operation of the rocking pedal 22. That is, when the racing pedal 22 is stepped on, the output shaft 65C of the transmission 65 and the horizontal motor shaft 36A of the harvesting device 4 are connected via the harvesting clutch 65F, and the harvesting device 4 is connected. Drive. On the other hand, when the sound of the racing pedal 22 is released, the mowing device is released by disconnecting the output shaft 65C of the transmission 65 from the transverse motor shaft 36A of the mowing device 4 via the mowing clutch 65F. (4) stops driving.

When one side of the pavement is mowed to the boundary of the head, the main gear lever 16 is operated to the neutral position to stop the vehicle body. When the racing pedal 22 is stepped in the state where the combine is stopped, the harvesting apparatus 4 is driven. At this time, since the main gear lever 16 is moved to the neutral position, the traveling device 2 is not driven forward and maintains the stopped state.

In the third path C transmitted to the discharge spiral 39A of the grain tank 5, the rotation of the engine 62 is carried out by the pulley 70C supported by the crankshaft 70, the belt 97, and the gearbox. It drives to the discharge spiral 39A provided in the lower part of the grain tank 5 via 39 etc. Further, the rotation of the discharge spiral 39A is transmitted to the auger spiral 39B incorporated in the discharge cylinder 7 provided at the rear of the grain tank 5. Moreover, the discharge clutch 97A which connects and interrupts the transmission to the transmission downstream side rather than the belt 97 is provided in the 3rd path C. As shown in FIG.

(How to run and stop the feed chain)

Next, the driving / stopping method of the feed chain 12B of this embodiment is demonstrated. On the input side of the control apparatus 85 provided in the cockpit 6, as shown in FIG. 10, the traveling speed sensor 66S which detects the speed V of the traveling apparatus 2, and the conveying apparatus of the mowing apparatus 4 are shown. The conveyance speed sensor 34S which detects the speed VH of 34, the feed chain speed sensor 10S which detects the speed VF of the feed chain 12B of the threshing part conveying apparatus 12, and Sub-shift lever position sensor 15S for detecting the lever position of the shift lever 15, and increase / deceleration switch 16A for increasing / decreasing the speed VF of the feed chain 12B provided in the main gear lever 16; 16B), a speed adjusting dial 6A for increasing and decreasing the speed VF of the feed chain 12B provided on the side surface of the barrel cover 50D, and a mode switch 6B for switching to the manual threshing mode. And the grain stem which detects the presence or absence of the reversing switch 6C which reversely rotates the feed chain 12B from the rear side toward the front side, and the grain to be conveyed on the feed chain 12B. Standing can (34C), and a stop switch (6D) that an emergency stop the driving of geupdong cover (50D) feed chain (12B) that is installed on the side of the connected via a predetermined input interface circuit. On the output side, on the output side, a first transmission motor 10C for driving the trunnion shaft 10F of the hydraulic continuously variable transmission 10 for a feed chain in a normal mowing mode, and a hydraulic continuously variable transmission for a feed chain in a manual threshing mode. The second variable speed motor 10E for driving the trunnion shaft 10F of the apparatus 10 is connected via a predetermined output interface circuit.

In addition, the mode switch 6B is not limited to the switch which an operator operates manually. That is, in order to prevent the disturbance of the attitude | position of the grain stem taken over from the terminal part of the conveying apparatus 34 of the harvesting | reaping apparatus 4 to the start end of the feed chain 12B, the terminal part of the conveying apparatus 34 was rocked in the vertical direction. The manual threshing limiting plate 40 and the rear side auxiliary holding rod 43 are provided below the manual threshing limiting plate 40. When switching to the manual threshing mode, the manual threshing regulating plate 40 is positioned on the upper side of the shaft 44A so that the manual threshing grain stem is placed upward on the rear side auxiliary holding rod 43 and the feed chain 12B. By switching from a regulated state to an unregulated state. A mode switch 46 for turning on / off in conjunction with an operation for rocking the manual threshing limiting plate 40 may be provided, and the mode switch 46 may be used as the mode switch 6B.

<First driving method of feed chain>

11 shows a first driving method of the speed VF of the feed chain 12B. The horizontal axis represents the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S, and V1 and V2 are first and second set values of the traveling speed V. FIG. The vertical axis on the left indicates the speed VF of the feed chain 12B detected by the feed chain speed sensor 10S, VF1 and VF2 are the first and second set values of the speed VF of the feed chain 12B, The vertical axis on the right indicates the speed VH of the conveying device 34 detected by the conveying speed sensor 34S, VH1 and VH2 are the first and second set values of the conveying speed VH, and VH1 and VH2 travel. Corresponds to the speed when the traveling speed V of the apparatus 2 is the first and second set values V1, V2.

Moreover, the solid line has shown the speed VF of the feed chain 12B, and the broken line has shown the speed VH of the conveying apparatus 34. As shown in FIG.

First, the control device 85 judges whether there is an input of the mode switch 6B, and when it is determined that there is no input of the mode switch 6B, the control device 85 determines the speed ( It is judged whether or not VH (the input value from the conveyance speed sensor 34S) is lower than the first set value VH1.

When it is determined that the speed VH of the conveying device 34 is lower than the first set value VH1, the speed VF of the feed chain 12B is calculated by the following formula 1 as shown in the first state. Control by speed. In addition, the conveyance speed VH of the conveying apparatus 34 with respect to the traveling speed V of the traveling apparatus 2 is changed by the shift stage position set by the sub transmission lever 15. As shown in FIG.

Expression 1 VF = K × V

K = VH1 / V1

On the other hand, when it is determined that the speed VH of the conveying apparatus 34 is equal to or more constant than the first set value VF1, the speed VF of the feed chain 12B is represented by the following equation 2 as shown in the second state. Control at the speed computed by.

Expression 2 VF = VF1 + 1.5 to 2.5 × K × (V-V1)

K = (VH2-VH1) / (V2-V1)

Subsequently, the controller 85 determines whether or not the speed VF (the input value of the feed chain speed sensor 10S) of the feed chain 12B is lower than the second set value VH2 of the conveying device 34. To judge.

When it is determined that the speed VF of the feed chain 12B is lower than the second set value VH2 of the conveying device 34, the speed VF of the feed chain 12B is determined as shown in the second state. Control at the speed calculated in Equation 2.

On the other hand, when it is determined that the speed VF of the feed chain 12B is equal to or higher than the second set value VH2 of the conveying device 34, the speed of the feed chain 12B as shown in the third state ( VF) is maintained at the second set value (third set value in claim) (VF2).

When the traveling speed V of the traveling device 2 detected by the traveling speed sensor 66S exceeds the maximum speed V2 over a predetermined time, a monitor or the like disposed on the front surface of the cockpit 6 is provided. It is desirable to warn the operator.

<2nd driving method of feed chain>

12 shows a second method of driving the speed VF of the feed chain 12B. The solid line shows the speed VF of the feed chain 12B, the broken line shows the speed VH of the conveying apparatus 34, and the same code | symbol is attached | subjected to the same member as a 1st drive method, and the overlapping description is abbreviate | omitted.

First, the control device 85 judges whether there is an input of the mode switch 6B, and when it is determined that there is no input of the mode switch 6B, the feed chain of the first state to the third state described above ( The speed VF of 12B) is maintained.

On the other hand, when it determines with the input of the mode switch 6B, the speed VF of the feed chain 12B is controlled by the speed computed by following formula (3). In addition, the speed VF of the feed chain 12B can be increased or decreased in the range of 10 to 20% by the speed adjusting dial 6A, and the grain stem is placed on the feed chain 12B above by manual threshing operation. It is preferable to increase the speed VF of the feed chain 12B by operating the speed adjusting dial 6A.

Equation 3 VF = 0.25 to 0.5 x VH1

<First Stop Method of Feed Chain>

FIG. 13 shows a first stop method of the feed chain 12B being driven by the first drive method.

13 shows the operation state of the stop switch 6D in the first stage, and the hydraulic endless speed change apparatus 10 for the feed chain for increasing and decelerating the rotation speed transmitted to the feed chain 12B in the second stage. The position situation of the trunnion shaft 10F is shown, and the speed VF of the feed chain 12B is shown in the third stage. In addition, the driving state of the engine 62 is shown by the 4th stage of FIG. 13, The speed VH of the conveying apparatus 34 installed in the harvesting apparatus 4 which drives in conjunction with the traveling apparatus 2 is shown in the lowest stage. Is shown.

First, the control device 85 determines whether there is an input of the stop switch 6D, and if it is determined that there is no input of the stop switch 6D, the control device 85 drives the feed chain 12B by the first driving method. do.

On the other hand, when it is determined that there is an input of the stop switch 6D, the trunnion shaft 10F is driven by driving the first shifting motor 10C connected to the trunnion shaft 10F of the feed chain hydraulic continuously variable transmission 10. ) Rotates to the neutral position to stop the rotation of the output shaft (10B) of the hydraulic continuously variable transmission (10) for the feed chain. As a result, the driving force to the feed chain 12B is cut off, and the rotation of the feed chain 12B is stopped.

In addition, when it is determined that there is an input of the stop switch 6D, the engine 62 is stopped and the rotation transmitted to the traveling hydraulic continuously variable transmission 66 is interrupted to the traveling device 2 and the harvesting device 4. The rotation of the installed conveying apparatus 34 is stopped.

In order to stop the feed chain 12B more quickly, it is preferable to rotate the trunnion shaft 10F beyond the neutral position to a slightly reverse position.

<2nd method of stopping the feed chain>

14 shows a second stopping method of the feed chain 12B being driven by the second driving method. In addition, the same code | symbol is attached | subjected to the same member as a 1st stop method, and the overlapping description is abbreviate | omitted.

First, the control device 85 judges whether there is an input of the stop switch 6D, and if it is determined that there is no input of the stop switch 6D, the control device 85 drives the feed chain 12B by the second driving method. do.

On the other hand, when it is judged that there is input of the stop switch 6D, it drives with the 2nd transmission motor 10E connected to the trunnion shaft 10F of the hydraulic continuously variable transmission 10 for feed chains, and runs the trunnion shaft 10F. ) Rotates to the neutral position to stop the rotation of the output shaft (10B) of the hydraulic continuously variable transmission (10) for the feed chain. As a result, the driving force to the feed chain 12B is cut off, and the rotation of the feed chain 12B is stopped.

In addition, when it is determined that there is an input of the stop switch 6D, the engine 62 is stopped and the rotation transmitted to the traveling hydraulic continuously variable transmission 66 is interrupted to the traveling device 2 and the harvesting device 4. The rotation of the installed conveying apparatus 34 is stopped.

In order to emergency stop the feed chain 12B, the second speed change motor 10E sets a reduction ratio or the like larger than the first speed change motor 10C used in the first stop method, and trunnions to the first speed change motor 10C. The trunnion shaft 10F can be rotated at high speed compared with the case where the unlock shaft 10F is rotated. In addition, in order to stop the feed chain 12B more quickly, the trunnion shaft 10F is rotated beyond the neutral position until it is slightly reversed, and the rotation sensor 68G rotates the output shaft 10B. It is preferable to stop and rotate the trunnion shaft 10F from the reverse side position to the neutral position after the rotation of the output shaft 10B is again detected or after the rotation of the output shaft 10B is detected for 1 to 2 seconds. Do.

In order to remove a blockage between the feed chain 12B and the holding rod 12C and the like, the inversion switch 6C can be operated to change the rotation direction of the feed chain 12B. In this case, the feed chain 12B is reversely driven only when the reverse switch 6C is operated in order to prevent the reverse of the unprepared feed chain 12B and increase the safety of the auxiliary worker, or the auxiliary worker combines 1 to 2 seconds after the reversing switch 6C has been operated to secure the time falling from the reverse direction, the feed chain 12B is reversely driven, or the surrounding collaborators are notified of the reversal state of the feed chain 12B. It is preferable to ring the horn at the inversion of the feed chain 12B.

Further, when the stop switch 6D is operated and the engine 62 is started again after the feed chain 12B, the engine 62, and the like are stopped, the mode switch 6B is released to switch to the normal mowing mode. Needs to be.

The present invention can be applied to agricultural work vehicles.

2: traveling device 3: threshing device
4: mowing device
10: hydraulic continuously variable transmission (hydraulic continuously variable transmission)
10A: input shaft 11B: rear side plate (support frame)
12B: Feed Chain 17A: Drive Sprocket
35: suspension stand (cutting support) 35B: fixed shaft
50A: front wall 51: sorting room (selection unit)
55: rapid 62: engine
68: gearbox 68B: output shaft (second output shaft)
68C Coupling 70 Crankshaft (Output Shaft)
71: counter shaft 71A: pulley (input pulley)
85: control device 90A: threshing clutch
VF: conveying speed (feed chain conveying speed)
VF2: Second set value (third set value) VH: Transfer speed (cutting speed)
VH1: First set value VH2: Second set value

Claims (10)

A harvesting device 4 is provided at the front of the body having the traveling device 2, and a threshing device 3 is provided at the rear of the harvesting device 4, and at the left and right sides of the threshing device 3, In the combiner provided with the feed chain 12B which takes over the grain stem harvested by the harvesting | reaping apparatus 4, and supplies it to the threshing apparatus 3, the said driving apparatus 2 and the harvesting apparatus 4 are not driven, The hydraulic continuously variable transmission device 10 for driving the feed chain 12B is provided, and the counter shaft 71 in the horizontal direction of the gas is provided on the front side of the threshing device 3 to output the shaft 70 of the engine 62. Is configured to transmit power from the gas outer portion of the counter shaft 71 to the input shaft 10A of the hydraulic continuously variable transmission 10 from the gas outer portion of the counter shaft 71. Combine. The method of claim 1,
Threshing clutch which is configured to transmit power from the counter shaft 71 to the threshing apparatus 3 and connects and cuts off transmission of power from the output shaft 70 of the engine 62 to the counter shaft 71 ( A combine, characterized in that 90A) is installed. 3. The method of claim 2,
Separation part which transfers power from the gas inner part of the said counter shaft 71 to the barrel 55 with which the threshing apparatus 3 was equipped, and was provided in the threshing apparatus 3 from the gas outer part of the counter shaft 71. The combine characterized by the structure which transmits power to 51. It is characterized by the above-mentioned. The method of claim 3, wherein
A combine characterized in that the counter shaft (71) and the hydraulic continuously variable transmission (10) are supported on the front wall (50A) of the threshing apparatus (3). 5. The method of claim 4,
A mowing support 35 for supporting the mowing device 4 at the front of the body, and connecting the mowing support 35 and the front wall 50A of the threshing device 3 to the supporting frame 11B. And the hydraulic continuously variable transmission (10) is supported on the support frame (11B). The method of claim 5, wherein
A gear box 68 having a second output shaft 68B for driving the feed chain 12B is attached to the right side of the support frame 11B, and the hydraulic continuously variable transmission 10 is attached to the support frame ( The combine which is attached to the left side part of 11B). The method according to claim 6,
The drive sprocket 17A and the second output shaft 68B which support the feed chain 12B so as to be rotatable to the outside of the gas around the fixed shaft 35B in the vertical direction, and wind the feed chain 12B. A coupling 68C for connecting and disconnecting the second output shaft 68B and the drive sprocket 17A between the first and second output shafts 68B and rotating the feed chain 12B outwardly of the body. The second output shaft 68B and the drive sprocket 17A are connected to each other when the feed chain 12B is rotated to the inside of the body. combine. The method according to any one of claims 1 to 7,
Mowing threshing mode for shift control of the hydraulic continuously variable transmission 10 to synchronize the feed chain conveyance speed VF of the feed chain 12B to the mowing conveyance speed VH of the mowing device 4, and the feed. A combine device comprising a control device 85 capable of executing a manual threshing mode for maintaining a chain conveyance speed VF at a predetermined conveyance speed. The method of claim 8,
The control device 85 is that the mowing conveyance speed VH is lower than the first setting value VH1 when the mowing conveyance speed VH is equal to or larger than the first preset value VH1 in the mowing threshing mode. The combine characterized by setting the ratio of the change amount of the said feed chain conveyance speed VF with respect to the change amount of mowing conveyance speed VH larger than a case. The method of claim 9,
When the feed chain conveyance speed VF is higher than the first set value VH1 than the first set value VH1 in the mowing threshing mode, the controller 85 is equal to or larger than the second set value VH2 preset. And the feed chain conveyance speed VF is maintained at a predetermined third set value VF2.

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