JP6555795B2 - Combine - Google Patents

Description

  The present invention relates to a combine such as a harvester that harvests cereals planted in a field and collects grains, or a combine such as a feed combine that harvests cereals for feed and collects as feed, and more particularly, a harvester or It is related with the combine provided with the counter case which transmits the motive power of an engine to a threshing apparatus.

  Conventionally, a combine is provided with a traveling machine body on which an engine is mounted, and a pair of left and right traveling crawlers are mounted on the traveling machine body, and the pair of left and right traveling crawlers are driven and controlled to move in a farm field or the like. The combine is also provided with a counter case for transmitting the engine power to the reaping device or the threshing device, cutting the stock of uncut cereal planted in the field with a cutting blade device, and The cereal is transported to the threshing device by the transport device, the threshing device is threshed by the threshing device, and the grains are collected (see, for example, Patent Document 1). Further, a technique for dividing a counter case into a right main body case and a left main body case is also known (see Patent Document 2).

JP 2004-138166 A JP 2011-130671 A

  In the prior art, since the handling cylinder drive pulley is arranged at a low position on the front surface of the counter case, the handling cylinder is limited when the front and rear width dimensions of the counter case installation space are limited as in a small structure with a small number of cutting lines. There are problems such as simplification of the drive structure and improvement in handling cylinder drive performance. Further, when the barrel driving pulley is disposed at a high position of the counter case, there is a problem that the gear or shaft supported at the high position of the counter case is insufficiently lubricated.

  Therefore, the present invention seeks to provide a combine that has been improved by examining these current conditions.

In order to achieve the object, a combine of an invention according to claim 1 includes a traveling machine body equipped with an engine, a cutting device having a cutting blade, a threshing device having a handling cylinder and a grain sorting mechanism, the cutting device, and the In a combine provided with a counter case for transmitting the power of the engine to the threshing device, a chopping transmission shaft for transmitting the power of the engine to the reaping device to the counter case, and a threshing for transmitting the power of the engine to the threshing device. The structure includes a sorting operation input shaft and a handling cylinder drive shaft that transmits a driving force of the threshing sorting operation input shaft to the handling cylinder, and the handling cylinder drive shaft includes the cutting transmission shaft and It is positioned higher than the threshing sorting operation input shaft and higher than the lubricating oil surface inside the counter case, so as to forcibly lubricate the barrel driving shaft body. Form, said counter casing, the thresher and drive shaft support portion for supporting the drive shaft, thresher driving vertical axis bearing for transmitting the driving force of the threshing sorting work input shaft to the threshing drum drive shaft And a vertical cylinder portion provided through the body, and the lubricating oil is supplied from the upper end portion of the vertical cylinder portion to the barrel driving shaft body .

The invention according to claim 2 is a traveling machine body equipped with an engine, a reaping device having a cutting blade, a threshing device having a handling cylinder and a grain sorting mechanism, and the motive power of the engine to the reaping device and the threshing device. In the combine provided with a counter case to be transmitted, the combine is provided with a handle cylinder driving shaft that transmits a driving force to the handle cylinder, and the counter case is provided with a handle cylinder drive shaft body, The handling cylinder drive shaft is arranged at a position higher than the lubricating oil surface, and is configured to forcibly lubricate the handling cylinder drive shaft, and the counter case is disposed between the counter case and the oil cooler. The hydraulic oil is circulated, the return oil pipe from the oil cooler is branched, and the return oil pipe is connected to a high position of the counter case where the handling cylinder drive shaft is supported, The counter case has a right body case and a left body case, the right body case projects upward, the handling cylinder drive shaft is disposed on the upper end side of the right body case, and the right body In this structure, the bottom of the case communicates with the bottom of the left main body case, and an oil flow down groove is provided for dropping the hydraulic oil from the return oil pipe connecting portion of the counter case.

The invention described in claim 3 is the combine of claim 2, journaled threshing sorting work input shaft to the counter case, a structure for transmitting the power of the engine to the threshing sorting work input shaft, The threshing selection work input shaft is formed by a right input shaft and a left input shaft, the right input shaft is supported inside the right body case, and the left input shaft is supported inside the left body case.

According to the first aspect of the present invention, a traveling machine body equipped with an engine, a reaping device having a cutting blade, a threshing device having a handling cylinder and a grain sorting mechanism, and the motive power of the engine in the reaping device and the threshing device. In the combine provided with a counter case for transmitting the power, the chopping transmission shaft for transmitting the power of the engine to the reaping device to the counter case, the threshing selection operation input shaft for transmitting the power of the engine to the threshing device, A handling cylinder drive shaft that transmits the driving force of the threshing selection work input shaft to the handling cylinder is provided internally, and the handling cylinder drive shaft is configured by the cutting transmission shaft and the threshing selection work input shaft. even at high positions than said lubricating oil level of the internal counter case is disposed at a height position, forcibly configured to lubrication to the threshing drum drive shaft, the counter case, A drive shaft support for pivotally supporting the barrel driving shaft and a barrel driving vertical axis for transmitting the driving force of the threshing sorting input shaft to the barrel driving shaft are provided through the bearing body. And the lubricating oil is supplied from the upper end of the vertical cylinder portion to the barrel drive shaft body. Lubricating oil can be supplied, and a barrel drive pulley can be disposed at a high position of the counter case via a barrel drive shaft. That is, the barrel drive pulley can be compactly supported at a high position within the front-rear width of the counter case, and the front-rear width dimension of the counter case can be shortened. The barrel drive belt can be formed in a short length. Maintenance workability around the barrel drive pulley can be improved.

According to the invention which concerns on Claim 2 , the traveling body which mounted an engine, the reaping apparatus which has a cutting blade, the threshing apparatus which has a handling cylinder and the grain selection mechanism, the power of the engine in the reaping apparatus and the threshing apparatus A combiner including a counter case for transmitting a handle cylinder drive shaft for transmitting a driving force to the handle cylinder, wherein the counter case includes a handle cylinder drive shaft body, and the counter case includes The barrel drive shaft is disposed at a position higher than the lubricating oil surface of the barrel, and is configured to forcibly lubricate the barrel drive shaft, and the counter case is disposed between the counter case and the oil cooler. The return oil pipe from the oil cooler is branched, and the return oil pipe is connected to a high position of the counter case where the handle cylinder drive shaft is supported. The counter case includes a right body case and a left body case, the right body case projects upward, the handling cylinder drive shaft is disposed on the upper end side of the right body case, and the right side case is disposed. Since the bottom of the main body case and the inner bottom of the left main body case are in communication with each other, an oil flow down groove is provided for dropping hydraulic oil from the return oil pipe connecting portion of the counter case. On the other hand, it is possible to prevent the hydraulic oil that is forcibly lubricated from moving from the right main body case to the left main body case via the oil flow down groove and increasing the pressure of the hydraulic oil returning to the right main body case. For example, when hydraulic oil inside the counter case is circulated between the counter case and an oil cooler, a hydraulic valve, or a hydraulic actuator, the return oil from the oil cooler to the counter case (the hydraulic oil that lubricates the barrel drive shaft body) ) Can easily prevent back pressure.

According to the invention which concerns on Claim 3 , it is the structure which supports the threshing sorting work input shaft in the counter case, and transmits the motive power of the engine to the threshing sorting work input shaft, and the threshing sorting work input shaft is on the right side. An input shaft and a left input shaft are formed. The right input shaft is supported inside the right body case, and the left input shaft is supported inside the left body case. The counter case can be assembled by combining the right main body case and the left main body case with the gear or shaft assembled to the case. For example, a cylinder drive vertical axis and a cylinder drive horizontal axis as the cylinder drive shaft body are arranged in an L shape inside the right body case, and the cylinder drive pulley is pivotally supported on the cylinder drive horizontal axis. In this structure, power can be transmitted from the threshing sorting operation input shaft (right input shaft) to the handling cylinder drive horizontal axis via the handling cylinder drive vertical axis by connecting two pairs of bevel gears. That is, the barrel drive pulley can be easily disposed at a high position of the counter case via the barrel drive shaft.

It is a left view of the combine for 4 thread cutting of 1st Embodiment of this invention. It is the same right view. It is the same top view. FIG. 2 is a drive system diagram of the combine of FIG. 1. It is drive system diagrams, such as a counter case. It is the perspective view which looked at the threshing device front part from the upper surface. It is the perspective view which looked at the threshing device front part from the right side. It is the perspective view which looked at the handling cylinder drive mechanism from the right rear. It is the perspective view which looked at the handling cylinder drive mechanism from the left front. It is the perspective view which looked at the threshing clutch part from the right front. It is the perspective view which looked at drive belt parts, such as a counter case, from the right side. It is the perspective view which looked at drive belt parts, such as a counter case, from the right front. It is the perspective view which looked at the handling cylinder drive belt part from the upper left side. It is the perspective view which looked at the counter case from the left rear. It is the perspective view which looked at the engine and the counter case from back. It is front explanatory drawing which shows the gear arrangement | positioning inside a counter case. It is a back surface explanatory view showing gear arrangement inside a counter case. It is the perspective view which looked at the gear arrangement inside a counter case from the right rear. It is sectional explanatory drawing of the connection part of a right side main body case and a left side main body case. It is a cross-sectional top view of the handling cylinder drive vertical axis | shaft part of a right main body case.

  DESCRIPTION OF EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. 1 is a left side view of the combine, FIG. 2 is a right side view of the combine, and FIG. 3 is a plan view of the combine. The overall structure of the combine will be described with reference to FIGS. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side. As shown in FIGS. 1 to 3, a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 as a traveling unit is provided. At the front part of the traveling machine body 1, a four-row mowing device 3 that takes in while harvesting cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be movable up and down around the mowing rotation fulcrum shaft 4a. The A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grains taken out from the threshing device 5 are mounted side by side on the traveling machine body 1. The threshing device 5 is disposed on the left side in the forward direction of the traveling machine body 1, and the grain tank 7 is disposed on the right side in the forward direction of the traveling machine body 1. A swivelable discharge conveyor 8 is provided at the rear part of the traveling machine body 1, and the grains inside the grain tank 7 are discharged from the culling spout 9 of the discharge conveyor 8 to a truck bed or container. ing. An operation cabin 10 is provided on the right side of the reaping device 3 and on the front side of the grain tank 7.

  In the driving cabin 10, there are disposed a steering handle 11, a driving seat 12, a transmission lever 13, a working clutch lever for turning on and off a threshing clutch and a cutting clutch. The driving cabin 10 is provided with a step (not shown) on which an operator gets on, a handle column provided with a steering handle 11, and a lever column provided with the levers and switches. An engine 14 as a power source is disposed in the traveling machine body 1 below the driver seat 12.

  As shown in FIGS. 1 and 2, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 14 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24 and an intermediate roller 25 that holds the non-grounded side of the traveling crawler 2 are provided. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, the track roller 24 supports the grounding side of the traveling crawler 2, and the intermediate roller 25 supports the non-traveling crawler 2. Support the ground side.

  As shown in FIGS. 1 and 2, below the cutting frame 31 connected to the cutting rotation fulcrum shaft 4 a of the cutting device 3, a clipper that cuts the stock of uncut grain culm (grain culm) planted in the field. A type of cutting blade device 32 is provided. In front of the cutting frame 31, a grain stalk elevating device 33 for four ridges that raises uncut sorghum planted in a field is disposed. Between the culm pulling device 33 and the front end portion (feed start end side) of the feed chain 6, a culm transporting device 34 that transports the chopped culm harvested by the cutting blade device 32 is arranged. In addition, in front of the lower part of the grain raising apparatus 33, a four-part weeding body for weeding the uncut grained rice planted in the field is projected. The driving crawler 2 is driven by the engine 14 so as to move in the field while the uncut rice culms planted in the field are continuously cut by the cutting device 3.

  Next, the drive structure of the combine will be described with reference to FIG. As shown in FIG. 4, the grain raising device 33 has a four-case raising case 129 having a plurality of raising tines 128 for raising an uncut grained rice that has been weeded by a weed board. The grain feeder 224 includes left and right right star wheels 130R and left and right right scooping belts 131R that squeeze the stock side of the right two grain grains introduced from the two right side pulling cases 129, and the left side. It has left and right left star foils 130L and left and right left rake belts 131L that rake up the stock side of the cereal grains for the two left-hand sides introduced from the two pulling cases 129.

  The cutting blade device 32 is a clipper type that cuts the stock of four rows of cereals scraped by the right star wheel 130R, the right and left right take-up belts 131R, the left star wheel 130L, and the left and right left take-up belts 131L. Left and right cutting blades 132.

  In addition, the cereal carrying device 34 has a right stock former transport chain 133R that feeds back the stock side of the right two reaped harvested rice straws that are raked by the right two star wheels 130R and the rake belt 131R. And left stock transport that joins the stock side of the left two cropped grains that have been scraped by the left two star foils 130L and the scraping belt 131L to the transport end of the right stock transport chain 133R Chain 133L. By the left and right stock transport chains 133R and 133L, the stock ends of the harvested cereal meals for the four strips are joined to the transport end portion of the right stock transport chain 133R.

  The grain feeder 34 is fed from a vertical conveyor chain 134 serving as a grain feeder that inherits the stock side of the harvested cereals for six strips from the right stock former feed chain 133R, and fed from the conveyance end of the vertical feed chain 134. An auxiliary stock source transport chain 135 is provided as an auxiliary transport means for transporting the stock side of the harvested cereals for four strips at the transport start end of the chain 6. From the vertical conveyance chain 134, the stock side of the cut grain cereals for four strips is conveyed to the conveyance start end portion of the feed chain 6 through the auxiliary stock source conveyance chain 135.

  The grain culm transporting device 34 is transported by the right stalk transporting tine 137R that transports the tip of the harvested stalks for the two right-hand strips transported by the right stock transporting chain 133R and the left stock transporting chain 133L. It has a left tip transporting tine 137L that transports the tip side of the harvested cereal rice cake for the two left-hand sides. The vertical feed chain 134 pinches and conveys the roots of the four chopped cereal grains, and the tip of the four chopped cereal grains is transported at the feed end side of the right tip tine 137R. In the chamber 55 installation chamber, the tip side of the four cut stalks harvested by the reaping device 3 is conveyed, and the grain is shed.

  In addition, as shown in FIG. 4, the pulling horizontal transmission shaft 143 is connected to the cutting input shaft 17 via the vertical transmission shaft 140, the horizontal transmission shaft 141, and the left conveyance drive shaft 142. The pulling lateral transmission shaft 143 is connected to the pulling tine drive shaft 144 of each pulling case 129 for four strips. A pulling case 129 is erected on the front end side of the cutting frame 31, and the pulling tine drive shaft 144 protrudes from the rear surface on the upper end side of the pulling case 129. The pulling tine chain 128a provided with a plurality of pulling tines 128 is driven via the pulling tine drive shaft 144 and the pulling lateral transmission shaft 143.

  As shown in FIG. 4, the left and right cutting blades 132 are connected to the lateral transmission shaft 141 via the left and right crankshafts 145. The left and right cutting blades 132 are configured to be driven synchronously via the lateral transmission shaft 141. The cutting blade device 32 is divided at the central portion of the cutting width for four lines to form the left and right cutting blades 132, and the left and right cutting blades 132 are reciprocated in opposite directions, and left and right generated by the reciprocating movement. The cutting blade 132 is configured to be able to cancel the vibration (inertial force).

  As shown in FIG. 4, one end of the longitudinal transmission shaft 140 is connected to the cutting input shaft 17. A horizontal transmission shaft 141 is connected to the other end side of the vertical transmission shaft 140. The rotational force of the cutting input shaft 17 is transmitted from the vertical transmission shaft 140 and the horizontal transmission shaft 141 to each drive unit of the cereal conveyance device 34. In other words, the right transmission drive shaft 146 is connected to the vertical transmission shaft 140. Via the vertical transmission shaft 140 and the right transport drive shaft 146, the right stock former transport chain 133R and the right tip transport tine 137R, the right star wheel 130R and the right take-up belt 131R are driven. Further, the auxiliary stock former conveyance chain 135 and the right tip conveyance tine 137R are driven via the vertical transmission shaft 140 and the rear conveyance drive shaft 147.

  Further, the left transport drive shaft 142 is connected to the left end side of the horizontal transmission shaft 141. The left stock former transport chain 133L and the left tip transport tine 137L, the left star wheel 130L, and the left take-up belt 131L are driven via the left transport drive shaft 142.

  Next, the structure of the threshing apparatus 5 will be described with reference to FIGS. 1, 2, and 4. As shown in FIGS. 1 and 2, the threshing device 5 includes a handling cylinder 55 for threshing threshing, a rocking sorter 56 for selecting the cereals falling below the handling cylinder 55, and a tang fan 57. ing. In addition, the rotating shaft core line of the handling cylinder 55 is extended along the conveyance direction (the advancing direction of the traveling machine body 1) of the cereal with the feed chain 6. The stock side of the corn straw conveyed from the reaping device 3 by the corn straw conveying device 34 is inherited by the feed chain 6 and is nipped and conveyed. Then, the tip side of the cereal cocoon is carried into the handling chamber of the threshing device 5 and threshed by the handling drum 55.

  As shown in FIG. 1, on the lower side of the rocking sorter 56, a first conveyor 58 for picking up the grain (the first thing) sorted by the rocking sorter 56 and two branches such as a grain with a branch raft. A second conveyor 59 for taking out the articles is provided. The two conveyors 58 and 59 of the present embodiment are arranged on the upper surface side of the traveling machine body 1 above the rear part of the traveling crawler 2 in a side view in order of the first conveyor 58 and the second conveyor 59 from the front side in the traveling direction of the traveling machine body 1. It is installed. A grain sorting mechanism 62 is constituted by the above-described swing sorter 56, the tang fan 57, the first conveyor 58, the second conveyor 59, and the like.

  The grains falling from the swing sorting board 56 are removed by the sorting wind from the red pepper fan 57 and the dust in the grains falls first on the conveyor 58. A cereal conveyor 60 extending in the vertical direction is connected to the terminal end of the conveyor 58 near the grain tank 7. The grain taken out first from the conveyor 58 is carried into the grain tank 7 via the cereal conveyor 60 and collected in the grain tank 7.

  In addition, the rocking sorter 56 drops the second thing such as the grain with branch stems onto the second conveyor 59 by rocking sorting (specific gravity sorting, Kara style sort). The second product is configured so as to be returned to the upper surface side of the front portion of the swing sorter 56 from the terminal end of the second conveyor 59 via the reduction conveyor and re-sorted. On the other hand, the waste handed over to the waste chain from the rear end side of the feed chain 6 is discharged to the rear of the traveling machine body 1 in a long state, or on the waste cutter provided at the rear part of the threshing device 5. After being cut to a short length as appropriate, it is discharged to the lower rear of the traveling machine body 1.

  Further, as shown in FIG. 4, the travel input shaft 152 of the mission case 88 is connected to the output shaft 150 that protrudes to the left side of the engine 14 via the travel drive belt 151. After the rotational driving force of the engine 14 is transmitted to the transmission case 88 and shifted, it is transmitted to the left and right traveling crawlers 2 via the left and right axles 153, and the left and right traveling crawlers 2 are driven by the rotational force of the engine 14. It is configured as follows.

  As shown in FIG. 4, a radiator cooling fan 154 for cooling the engine 14 is driven by an output shaft 150 protruding to the right side of the engine 14. Further, a discharge auger drive shaft 157 is connected to the output shaft 150 on the right side of the engine 14, and the discharge conveyor 8 is driven via the discharge auger drive shaft 157 by the rotational driving force of the engine 14, and the grains in the grain tank 7 are Is discharged into a container or the like.

  Next, a power transmission structure such as a counter case (gear case) 89 will be described with reference to FIGS. As shown in FIGS. 4 and 5, a counter case (gear case) 89 that transmits the rotational driving force of the engine 14 to each part of the reaping device 3 and the threshing device 5 is provided. A threshing selection work input shaft 165 that transmits the rotational driving force of the engine 14 to each part of the threshing device 5, and a handling cylinder drive horizontal shaft 160 that transmits the rotational driving force of the threshing selection work input shaft 165 to the handling cylinder 55 and the processing cylinder 61, Arranged in the counter case 89. The output shaft 150 on the left side of the engine 14 is connected to the right end portion of the threshing selection work input shaft 165 via a tension roller type threshing clutch 161 and a threshing drive belt 162.

  Further, the lower end portion of the handling cylinder drive vertical axis 167 is connected to the threshing selection work input shaft 165 via the first bevel gears 166 a and 166 b, and the second bevel gears 168 a and 168 b are connected to the upper end portion of the handling cylinder drive vertical axis 167. The rear end portion of the handling cylinder drive horizontal shaft 160 is connected through the via. That is, the lower end portion of the barrel drive vertical axis 167 extending vertically is connected to the middle portion of the threshing selection operation input shaft 165 extending in the left-right direction, and the threshing selection operation input shaft 165 is fixed. The rotational power is configured to be transmitted to the handling cylinder driving horizontal axis 160 via the handling cylinder driving vertical axis 167.

  In addition, as shown in FIG. 4, a handling cylinder shaft 163 that supports the handling cylinder 55 via a handling cylinder drive pulley 116 and a handling cylinder drive belt 117, and a processing cylinder 61 are provided on the handling cylinder drive horizontal shaft 160. The supported processing cylinder shaft 164 is connected. The handling cylinder 55 and the processing cylinder 61 are configured to rotate at a predetermined rotation speed (low speed rotation speed or high speed rotation speed) by the rotational force of the engine 14 at a substantially constant rotation speed. Further, by the rotational force of the engine 14 at a substantially constant rotational speed, the swing sorting plate 56, the red pepper fan 57, the first conveyor 58, the second conveyor 59, the dust discharge fan and the waste discharger via the threshing selection work input shaft 165. A grain sorting mechanism 62 including a chain, a waste cutter, and the like is configured to be rotationally driven at a substantially constant rotational speed.

  Further, as shown in FIGS. 4 to 18, a counter case 89 is provided on the left side of the engine 14 on the traveling machine body 1 on the front side of the threshing device 5. The counter case 89 includes a handling cylinder driving horizontal shaft 160, a threshing selection operation input shaft 165 connected to the handling cylinder driving horizontal shaft 160, a vehicle speed tuning shaft 100 connected to the PTO shaft 99 of the mission case 88, and a threshing. A cutting transmission shaft 101 connected to the sorting operation input shaft 165 or the vehicle speed tuning shaft 100, a cutting drive shaft 102 connected to the cutting input shaft 17, and a feed chain drive shaft 103 for driving the feed chain 6 are arranged. An output shaft 15 of the engine 14 is connected to a threshing selection work input shaft 165 via a threshing drive pulley 118 and a threshing drive belt 162. The reaping driving force and the threshing driving force are transmitted from the threshing selection work input shaft 165 to the reaping device 3 and the threshing device 5. The PTO shaft 119 of the transmission case 88 is connected to the vehicle speed tuning shaft 100 via the PTO pulley 119, the PTO belt 120, the PTO counter pulleys 122a and 122b on the PTO counter shaft 121, the vehicle speed tuning pulley 104, and the vehicle speed tuning belt 123. A vehicle speed tuning drive force is transmitted from the PTO shaft 99 to the counter case 89.

  As shown in FIG. 5, a one-way clutch 105 that transmits the vehicle speed tuning rotational force of the vehicle speed tuning shaft 100 to the reaping device 3 is provided on the vehicle speed tuning shaft 100 in the counter case 89. A cutting transmission shaft 101 is coupled to the vehicle speed tuning shaft 100 via a cutting transmission mechanism 108 and a one-way clutch 105. The cutting transmission mechanism 108 includes a low speed side transmission gear 106 and a high speed side transmission gear 107. The low speed side transmission gear 106 or the high speed side transmission gear 107 is selectively used as the cutting transmission shaft 101 by a cutting speed change operation means (not shown) for performing low speed, neutral (zero rotation) and high speed cutting speed changes and a cutting speed change slider 108a. It is configured to be engaged so that a cutting shift output is transmitted from the vehicle speed tuning shaft 100 to the cutting transmission shaft 101 via the cutting transmission mechanism 108.

  As shown in FIG. 5, the chopping transmission work shaft 101 is connected to the threshing selection work input shaft 165 via the constant rotation mechanism 111. The constant rotation mechanism 111 includes a low speed side constant rotation gear 109 and a high speed side constant rotation gear 110. A constant rotation speed change operation means (not shown) for performing constant rotation shifts of low speed, neutral (zero rotation) and high speed and a constant rotation switching slider 111a connect the low speed side constant rotation gear 109 or the high speed side constant rotation gear 110 to the cutting transmission shaft 101. And a constant rotational speed change output is transmitted from the threshing sorting operation input shaft 165 to the cutting transmission shaft 101 via the constant rotational mechanism 111.

  Further, the cutting drive shaft 102 is connected to the cutting transmission shaft 101 via a torque limiter 114. The cutting input shaft 17 is connected to the cutting drive shaft 102 via the cutting drive pulley 124 and the cutting drive belt 125, and the cutting drive force is transmitted from the cutting drive shaft 102 to the cutting device 3. A rotation output at a constant rotational speed necessary for maintaining the cutting operation is transmitted from the threshing selection operation input shaft 165 to the cutting transmission shaft 101 via the low-speed constant rotation gear 109. Therefore, the cutting input shaft 17 can be operated at a constant rotational speed from the low-speed constant rotating gear 109 regardless of the moving speed of the traveling machine body 1 to maintain the cutting operation, and the direction change workability on the headland in the field can be improved. Can be improved. The threshing sorting operation input shaft 165 is connected to the tangle fan 57 or the first conveyor 58 through the threshing sorting pulley 126 and the sorting drive belt 127, and threshing and sorting is performed in the grain sorting mechanism 62 (such as the tanghu fan 57) of the threshing device 5. A threshing driving force is transmitted from the work input shaft 165.

  Further, a rotational output at a constant rotational speed that is faster than the maximum speed of the vehicle speed synchronous output from the vehicle speed tuning shaft 100 and the high speed side transmission gear 107 is transferred from the threshing sorting operation input shaft 165 via the high speed side constant rotational gear 110. Is transmitted to. Therefore, the cutting input shaft 17 can be operated at a constant rotational speed from the high-speed side constant rotating gear 110 that is faster than the maximum speed of the vehicle speed synchronization output, and the efficiency of cutting the fallen cedar can be improved. It is to be noted that the cutting input shaft 17 is operated by a rotational force equal to or less than the torque set by the torque limiter 114, thereby preventing the cutting blade 132 and the like from being damaged.

  The counter case 89 includes a feed chain tuning mechanism 112 having a planetary gear-type transmission structure that connects the feed chain drive shaft 103 to the threshing sorting operation input shaft 165, and a feed that is coupled to the feed chain tuning mechanism 112 via a feed chain clutch 113a. A chain clutch shaft 113 and a drive chain 115 for connecting the feed chain drive shaft 103 to the feed chain clutch shaft 113 are provided. The rotational output of the threshing selection work input shaft 165 is shifted in proportion to the rotational speed of the cutting transmission shaft 101 by the feed chain tuning mechanism 112 and transmitted to the feed chain drive shaft 103. That is, by operating the feed chain 6 via the feed chain tuning mechanism 112, the feed chain is secured while ensuring the minimum rotational speed (constant rotational speed from the low-speed constant rotational gear 109) necessary for conveying the cereal. The cereal conveyance speed of 6 can be changed in synchronization with the vehicle speed.

  Further, since the left main body case 91 includes the drive chain 115 and the left subcase body 93 includes the feed chain clutch 113a, the support portion of the left subcase body 93 is partially bulged. And the left-right width | variety of parts other than the feed chain clutch 113a support part of the left subcase body 93 can be formed compactly, and the left subcase body 93 can be formed lightweight. Since the hydraulic oil at the bottom of the left main body case 91 is splashed toward the feed chain drive shaft 103 by the drive chain 115, the feed chain drive shaft 103 supported at a high position is well lubricated.

  Next, a power transmission structure such as the transmission case 88 will be described with reference to FIGS. As shown in FIGS. 4 and 6, the transmission case 88 includes a pair of linearly traveling first hydraulic pumps (HST traveling pumps) and linearly traveling first hydraulic motors (HST traveling motors). A hydraulic continuously variable transmission mechanism 53 and a turning hydraulic continuously variable transmission mechanism 54 having a pair of turning second hydraulic pumps (HST turning pumps) and a turning second hydraulic motor (HST turning motor) are provided. . Further, one end side of the PTO shaft 99 protrudes from the transmission case 88 to the left outer side, a PTO pulley 119 is provided on the PTO shaft 99, and the PTO belt 120 is wound around the PTO pulley 119.

  As shown in FIGS. 4 and 6, the driving force output from the output shaft 150 of the engine 14 is transmitted through the travel drive belt 151 and the travel input shaft 152, and the straight hydraulic type continuously variable transmission mechanism 53 and the turning hydraulic type. Each is transmitted to the continuously variable transmission mechanism 54.

  Note that the straight-travel hydraulic continuously variable transmission mechanism 53 changes and adjusts the inclination angle of the hydraulic pump swash plate in accordance with the amount of operation of the shift lever 13 and the control handle 11 disposed in the control unit 9 and outputs straight output. The turning hydraulic continuously variable transmission mechanism 54 is a two-hydraulic pump according to the amount of rotation of the shift lever 13 and the steering handle 11 disposed in the control unit 9. By changing and adjusting the inclination angle of the swash plate, the rotational direction and the rotational speed of the output for turning are arbitrarily adjusted. From the straight hydraulic stepless transmission mechanism 53 and the turning hydraulic stepless transmission mechanism 54 The shift output is transmitted to the drive sprockets 22 of the left and right traveling crawlers 2, respectively, and the vehicle speed (traveling speed) and traveling direction of the traveling machine body 1 are determined.

  Further, as shown in FIGS. 16 to 18, a cutting speed change cylinder 71 for operating the cutting speed change slider 108 a of the cutting speed change mechanism 108 and a constant cutting speed cylinder 72 for operating the constant rotation switching slider 111 a of the constant rotation mechanism 111 are provided. . The mowing shift cylinder 71 and the mowing constant speed cylinder 72 are arranged on the upper cover of the counter case 89. The fork shaft 73 in the counter case 89 is provided with a speed change fork 74 for switching the cutting speed change slider 108a and a constant speed fork 75 for switching the constant rotation speed change slider 111a so as to be slidable in the axial direction. The constant speed fork 75 is switched from neutral to the high speed constant rotation side or the low speed constant rotation side while switching to the high speed or standard (low speed) output side.

  Further, as shown in FIGS. 6 to 15, the engine 14 is mounted on the right side of the upper surface of the traveling machine body 1, a transmission case 88 is installed in front of the center of the left and right width of the traveling machine body 1, and on the left side of the upper surface of the traveling machine body 1. A counter case 89 is arranged. An output pulley 149 is pivotally supported on the left end portion of the output shaft 150 of the engine 14 extended in the left-right direction, and the traveling drive belt 151 of the mission case 88 and the threshing drive belt 162 of the counter case 89 are hung on the output pulley 149. It is turning. With this configuration, the output of the engine 14 is transmitted to the mission case 88 and the counter case 89, respectively.

  As shown in FIGS. 6 to 14, a cutting fulcrum frame 35 is erected on the upper surface of the traveling machine body 1 in front of the threshing device 5, and the upper surface of the cutting fulcrum frame 35 is cut through the left and right bearing bodies 36. The rotation fulcrum shaft 4a is pivotally supported. The auxiliary frame 37 is erected on the upper surface of the traveling machine body 1 on the right side of the cutting fulcrum frame 35, and the top plate 38 is fixed over the upper right side of the cutting fulcrum frame 35 and the upper surface of the auxiliary frame 37. The right bearing body 36 is attached to the upper surface. As shown in FIGS. 10 and 11, a counter bearing 48 is fastened and fixed to the auxiliary frame 37, and a PTO counter shaft 121 is pivotally supported on the counter bearing 48.

  Moreover, the columnar frame 39 which forms a part of engine room for engine 14 interior is provided. A columnar frame 39 is erected on the horizontal upper surface of the top plate 38, the conveyor support 40 is fixed to the upper end of the columnar frame 39, and the discharge conveyor 8 is placed in the storage (non-working) position via the conveyor support 40. Support (see FIGS. 1 and 2). In addition, a threshing clutch electric motor 41 is provided as a threshing input actuator for switching the threshing clutch 161. A clutch operating frame 42 is fastened and fixed to an intermediate portion of the columnar frame 39, and an electric motor 41 for threshing clutch, a clutch switching gear 43, a clutch switching arm 44, and the like are disposed on the threshing clutch operating frame 42, and a tension roller type A clutch switching arm 44 is connected to a tension arm 45 that supports the threshing clutch 161 via a tension spring 46.

  With the above configuration, the threshing drive belt 162 is maintained in a tension state by operating the threshing clutch electric motor 41 with the clutch and the threshing clutch 161 to be operated, and the output of the engine 14 is transmitted to the counter case 89. On the other hand, the threshing drive belt 162 is maintained in a relaxed state by the cutting operation of the threshing clutch 161 (electric motor 41 clutch cutting operation). The columnar frame 39 can be used as a frame member that forms a part of the engine room, a support member that supports the discharge conveyor 8 in the storage position, or a support member that supports the threshing clutch operation frame 42.

  That is, using a space formed at a high position in a narrow space between the engine 14 and the threshing device 5 (a position where assembly work or maintenance work is easy), a threshing clutch on / off mechanism such as an electric motor 41 for the threshing clutch. Although it is not necessary to secure a space on the counter case 89 side where the threshing clutch insertion / cutting mechanism such as the electric motor 41 for threshing clutch is installed, the threshing can be performed close to the right side of the counter case 89. The drive pulley 118 can be supported. Without being restricted by the electric motor 41 for threshing clutch or the threshing clutch on / off mechanism, a high gear ratio (reduction ratio) can be set by eliminating the need to increase the rigidity of the bearing structure associated with the extension of the threshing selection work input shaft 165. Possible large diameter threshing drive pulley 118 can be easily installed.

  On the other hand, as shown in FIGS. 10 to 12, a PTO counter shaft 121 is rotatably supported on the front surface of the auxiliary frame 37 via a counter bearing body 48. The PTO belt 120 is wound around between the PTO counter pulley 122 a and the PTO pulley 119 on the PTO counter shaft 121. Further, a vehicle speed tuning belt 123 is wound around the PTO counter pulley 122 b on the PTO counter shaft 121 and the vehicle speed tuning pulley 104. With this configuration, the vehicle speed tuning drive force of the transmission case 88 is transmitted from the PTO shaft 99 to the vehicle speed tuning shaft 100.

  As shown in FIGS. 1, 4, and 6 to 12, a cutting fulcrum frame 35 is erected on the front portion of the traveling machine body 1, and the cutting device 3 is supported by the cutting fulcrum frame 35 so as to be movable up and down. In a combine provided with a counter case 89 for transmitting power to the threshing device 5 and the reaping device 3 and arranging the counter case 89 between the threshing device 5 and the reaping fulcrum frame 35, a columnar shape as a cabin column on the upper right side of the reaping fulcrum frame 35 The frame 39 is erected, and a threshing clutch electric motor 41 as a threshing clutch operation unit is disposed in the middle part of the columnar frame 39. Therefore, the threshing clutch operation part 41 can be supported also using the columnar frame 39, and the number of components for assembling the threshing clutch electric motor 41 can be reduced. Further, since it is not necessary to secure a place for assembling the threshing clutch electric motor 41 on the counter case 89 side, the front-rear width of the counter case 89 (the handling cylinder driving pulley 116 installation portion) can be formed compactly.

  As shown in FIGS. 5, 10, and 11, the structure includes a PTO counter shaft 121 on which a PTO belt 120 that transmits power from the engine 14 to the counter case 89, a vehicle speed tuning belt 123, and PTO counter pulleys 122 a and 122 b are arranged. The auxiliary frame 37 is juxtaposed on the right side of the cutting fulcrum frame 35, the lower end of the columnar frame 39 is supported by the cutting fulcrum frame 35 and the auxiliary frame 37, and the counter frame 48 is attached to the auxiliary frame 37 via the counter bearing body 48. The counter shaft 121 is pivotally supported. Therefore, by utilizing the cutting fulcrum frame 35 and the auxiliary frame 37, the PTO counter pulley on which the driving cabin 10, the threshing clutch electric motor 41 (threshing clutch operating unit), and the PTO belt 120 or the vehicle speed tuning belt 123 are wound. 122a, 122b, etc. can be intensively supported, and the narrow space between the threshing device 5 and the driving cabin 10 can be easily and effectively used.

  Further, as shown in FIGS. 12, 15, and 16, the counter case 89 includes an upper surface cover 90, a left main body case 91, a right main body case 92, and a left sub case body 93. An upper surface lid 90 is fastened to the upper surface of the left main body case 91 so as to close the upper surface opening. The right body case 92 is fastened to the right side surface of the left body case 91 so as to close the right side opening. The left subcase body 93 is fastened to the left side surface of the left main body case 91 so as to close the left side surface opening. Further, in the left main body case 91, a cutting transmission mechanism 108, a constant rotation mechanism 111, and the like are arranged. On the other hand, a feed chain tuning mechanism 112 or a torque limiter 114 is disposed in the left subcase body 93.

  As shown in FIGS. 14 to 18, in the right body case 92, the first bevel gears 166 a and 166 b, the barrel driving vertical axis 167, the second bevel gears 168 a and 168 b, and the barrel driving horizontal axis 160 are provided. Be placed. The drive shaft support portion 92a is formed by projecting the upper surface side of the right body case 92 upward. The first bevel gears 166a and 166b, the barrel drive longitudinal axis 167, and the second bevel gears 168a and 168b are installed in the upper extending portion of the right main body case 92, and the upper extending portion of the right main body case 92 is provided. A handling cylinder drive vertical axis 167 is installed substantially vertically, and a drive shaft support portion 92a is projected horizontally from the upper end portion of the upper extension portion of the right body case 92 so that the top surface height of the right body case 92 is high. The barrel drive horizontal shaft 160 is pivotally supported by the drive shaft support portion 92a at the position, and the barrel drive horizontal shaft 160 is installed substantially horizontally in the drive shaft support portion 92a (right body case 92).

  That is, the lower end side of the barrel drive horizontal shaft 160 is connected to the threshing sorting operation input shaft 165 extended in the left-right direction via the first bevel gears 166a and 166b, and the upper end side of the barrel drive horizontal shaft 160 is connected. The rear end side of the barrel driving horizontal shaft 160 is connected via the second bevel gears 168 a and 168 b, and the barrel driving pulley 116 is pivotally supported on the front end side of the barrel driving horizontal shaft 160. The front end side of the barrel driving horizontal shaft 160 projects from the front end side of the driving shaft support portion 92a toward the front, and the barrel driving pulley 116 is pivotally supported by the projecting portion on the front end side of the barrel driving horizontal shaft 160; The handling cylinder driving pulley 116 is supported within the front-rear width of the left main body case 91, the right main body case 92 is projected upward, and the handling cylinder driving pulley 116 is disposed on the upper end side of the right main body case 92. In addition, a handling cylinder drive vertical axis 167 is disposed inside the right body case 92, the handling cylinder drive horizontal axis 160 is pivotally supported on the drive shaft support portion 92 a at the upper end of the right body case 92, and the handling cylinder drive horizontal axis 160 is supported. A handling drum driving pulley 116 is pivotally supported.

  In addition, transmission gears (first bevel gears 166a and 166b and second bevel gears 168a and 168b) to the handling barrel 55 of the threshing device 5 are installed in the right body case 92, and transmission gears (cutting) to the reaping device 3 are cut. (The gears of the speed change mechanism 108 or the constant rotation mechanism 111) are provided in the left main body case 91, and the drive shaft support portion on the upper end side of the right main body case is disposed on the front side of the machine housing of the threshing device 5 via the support frame body 98. 92a is detachably connected. The machine housing front side of the threshing apparatus 5 is detachably connected to the upper surface side of the mowing fulcrum frame 35 via the machine housing support pipe body 63. The machine housing of the threshing device 5, the cutting fulcrum frame 35 (running machine body 1), and the counter case 89 are detachably fastened and fixed via the support frame body 98 and the machine housing support pipe body 63.

  In addition, a plurality of case pedestals 94 are projected on the upper surface between the left and right support legs of the cutting fulcrum frame 35 on the upper surface of the traveling machine body 1, while the support legs 95 are provided on the front and rear surfaces of the left end of the left body case 91. The support legs 96 are integrally formed on the front and rear surfaces of the left end of the right body case 92, respectively. The support legs 95 and 96 are placed on the upper surface of each case support 94, and the support legs 95 and 96 are fastened to the case support 94 with case support bolts 97, respectively. That is, the counter case 89 is configured to be attached to and detached from the traveling machine body 1 in a state where the right main body case 92 and the left sub case body 93 are integrally combined with the left main body case 91.

  As shown in FIGS. 5 and 11 to 19, a counter case 89 is formed by the right main body case 92 and the left main body case 91, a threshing drive pulley 118 is disposed on the right side of the right main body case 92, and the right main body case 92. A barrel drive pulley 116 is supported on the front end side of the barrel drive horizontal shaft 160 that supports the barrel drive vertical axis 167 and the barrel drive horizontal shaft 160 inside and protrudes forward from a high position on the front surface of the right body case 92. It is pivotally supported. Therefore, the barrel drive pulley 116 can be installed within the front-rear width of the counter case 89 (left main body case 91), the front-rear width dimension of the counter case 89 installation space can be shortened, and the narrowing between the threshing device 5 and the cutting fulcrum frame 35 can be achieved. The counter case 89 can be easily disposed in a small space.

  As shown in FIGS. 9, 12, and 14, left and right case cradles 94 are provided on the upper surface between the left and right support legs of the cutting fulcrum frame 35 on the upper surface of the traveling machine body 1, and The support leg 95 of the main body case 92 and the support leg 96 of the left main body case 91 are fastened and fixed. Therefore, while the rigidity of the left and right case cradle 94 can be secured by the cutting fulcrum frame 35, the connection rigidity between the traveling machine body 1 and the cutting fulcrum frame 35 can be secured by the left and right case cradle 94. The connection strength between the case cradle 94 and the traveling machine body 1 can be easily improved, and the cutting fulcrum frame 35 or the counter case 89 can be supported on the upper surface side of the traveling machine body 1 with high rigidity.

  As shown in FIGS. 1, 4, 5, and 14 to 18, a threshing device having a traveling machine body 1 on which an engine 14 is mounted, a cutting device 3 having a cutting blade 132, a handling drum 55, and a grain sorting mechanism 62. 5 and a combiner provided with a counter case 89 for transmitting the power of the engine 14 to the reaping device 3 or the threshing device 5, the counter case 89 has a right main body case 92 and a left main body case 91, and the right main body case. A barrel driving pulley 116 is provided on the upper end side of the right main body case 92 so that 92 protrudes upward. Therefore, the cylinder driving pulley 116 can be compactly supported at a high position within the front-rear width of the counter case 89, and the front side of the threshing device 5 and the rear side of the cutting fulcrum frame 35 can be achieved without reducing the front-rear width dimension of the main body of the counter case 89. The front-rear width dimension of the counter case 89 installation space formed between the two can be shortened. While the cutting rotation fulcrum shaft 4a can be arranged close to the front side of the threshing device 5, the barrel driving belt 117 can be formed short, and the driving structure of the barrel 55 can be simplified. Maintenance workability around the barrel drive pulley 116 can be improved. Even in the case of a small body structure in which the front and rear width dimensions of the space for installing the counter case 89 are restricted, the counter case 89 having the same power transmission function as that of the large machine can be easily installed, and the drive performance of the handling cylinder 55 can be improved.

  As shown in FIGS. 5 and 14 to 18, transmission gears (first bevel gears 166 a and 166 b and second bevel gears 168 a and 168 b) to the handling cylinder 55 of the threshing device 5 are provided in the right main body case 92. Transmission gears (a mowing transmission mechanism 108 and a constant rotation mechanism 111) to the mowing device 3 are provided in the left main body case 91. Therefore, it is not necessary to change the gear specification in the left main body case 91 in which the transmission gear to the reaping device 3 is arranged when changing the specification of the transmission gear to the barrel 55. Further, when changing the specification of the left main body case 91 where the transmission gear to the cutting device 3 is arranged, it is not necessary to change the gear specification inside the right main body case 92 where the transmission gear to the handling cylinder 55 is arranged. By increasing the number of shared parts with a plurality of specifications, the manufacturing cost of the counter case 89 can be reduced, and the assembly workability can be improved.

  As shown in FIGS. 5 and 14 to 18, the upper end side of the right body case 92 is detachably connected to the front side of the threshing device 5 via a support frame body 98. Therefore, the upper part of the counter case 89 can be fixed to the front of the machine housing of the threshing device 5 in a state where the machine housing bottom portion of the threshing device 5 and the bottom portion of the counter case 89 are placed on the upper surface of the traveling machine body 1. The counter case 89 can be utilized as a support frame for the threshing device 5 and the support rigidity of the front portion of the threshing device 5 can be improved.

  Further, as shown in FIGS. 5, 15, and 19, a counter case 89 is used as a hydraulic oil tank that supplies hydraulic oil to a hydraulic actuator such as the lifting hydraulic cylinder 4 and is driven by the engine 14. A counter case 89 is connected to a working hydraulic pump via a supply oil pipe 77, and a hydraulic valve (not shown) for controlling the operation of a hydraulic actuator such as the lifting hydraulic cylinder 4 is connected via an oil cooler 78 and a return oil pipe 79. A counter case 89 is connected. The return oil pipe 80 is branched and connected to the return oil pipe 79 in the middle of the connection between the oil cooler 78 and the counter case 89, and the oil pipe plug 81 is provided at the high position of the right body case 92 of the counter case 89, and the return oil pipe 80 is provided in the middle of the return oil pipe 79. The oil pipe plug 81 is connected through the via.

  That is, the return oil pipe 79 is connected to the upper end portion of the right main body case 92 extended above the left main body case 91 via the oil pipe 80 and the oil pipe plug 81, and the hydraulic oil supplied from the counter case 89 is supplied to the right side. Returning to the upper end of the main body case 92, the rear end side bearing 160 or the upper end of the upper cylinder drive vertical axis 167 as the front cylinder drive shaft 160 disposed as a cylinder drive shaft disposed higher than the lubricating oil surface inside the counter case 89. The side bearings or bevel gears 166a, 166b, 168a, 168b are forcibly lubricated.

  Further, as shown in FIGS. 19 and 20, an oil communication passage 82 that connects the inner bottom portion of the right main body case 92 and the inner bottom portion of the left main body case 91 is formed, and the hydraulic oil returned to the upper end portion of the right main body case 92 is formed. Is configured to return from the oil communication passage 82 into the left main body case 91. On the other hand, a handling cylinder drive vertical axis 167 is provided in the vertical cylinder portion 92b of the right main body case 92 via a bearing bearing body 83, and a connecting portion of the drive shaft support portion 92a and the vertical cylinder portion 92b of the right main body case 92 is provided. An oil flow down groove 92d is formed in the inner hole surface of the drive shaft support portion 92a facing the reinforcement rib body 92c, of the inner hole surface of the drive shaft support portion 92a on which the reinforcing rib body 92c is formed. Form. The hydraulic oil is returned from the oil pipe plug 81 to which the return oil pipe 80 is connected to the upper end side of the vertical cylinder portion 92b of the right main body case 92, and the hydraulic oil returned to the upper end side of the vertical cylinder portion 92b is It is configured to fall to the bottom of the main body case 92 and return from the oil communication passage 82 into the left main body case 91.

  In addition, as shown in FIGS. 5 and 17 to 19, the threshing selection work input shaft 165 is divided into a right input shaft 165 a and a left input shaft 165 b, and the right input shaft 165 a is connected to the right end of the left input shaft 165 b. The left end is splined so as to be separable by a shaft connecting pipe 169. The right input shaft 165a is supported inside the right body case 92, and the left input shaft 165b is supported inside the left body case 91. Yes. When assembling the counter case 89, the right input shaft 165a, the barrel drive horizontal shaft 160, the barrel drive vertical axis 167, and the bevel gears 166a, 166b, 168a, 168b are assembled inside the right body case 92, After the left input shaft 165b, the shaft such as the cutting transmission shaft 101, and the gear such as the cutting transmission mechanism 108 or the constant rotation mechanism 111 are assembled to the left main body case 91, the left main body case 91 and the right main body case 92 are combined. And fastened and fixed.

  As shown in FIGS. 5 and 14 to 18, a handling cylinder driving vertical axis 167 is arranged inside the right body case 92, and a handling cylinder driving horizontal axis 160 is pivotally supported at the upper end portion of the right body case 92, so A barrel driving pulley 116 is pivotally supported on the shaft 160. Therefore, power can be transmitted from the handling cylinder drive vertical axis 167 to the handling cylinder drive horizontal axis 160 by two pairs of bevel gears (first bevel gears 166a and 166b and second bevel gears 168a and 168b). In the machine structure in which the driving cabin 10 is arranged adjacent to the threshing device 5, the distance between the threshing device 5 and the driving cabin 10 can be shortened.

  As shown in FIGS. 1, 4, 5, and 14 to 19, a threshing apparatus having a traveling machine body 1 on which an engine 14 is mounted, a cutting device 3 having a cutting blade 132, a handling cylinder 55, and a grain sorting mechanism 62. 5 and a combiner provided with a counter case 89 for transmitting the power of the engine 14 to the reaping device 3 or the threshing device 5, a handling cylinder drive horizontal shaft 160 as a handling cylinder drive shaft body for transmitting a driving force to the handling cylinder 55 is provided. The counter case 89 is provided with a handle cylinder driving horizontal shaft 160. The handle cylinder driving horizontal shaft 160 is disposed at a position higher than the lubricating oil surface inside the counter case 89, and the cylinder driving horizontal shaft 160 is provided. It is configured to forcibly lubricate. Accordingly, the lubricating oil can be sufficiently supplied to the handling cylinder driving horizontal shaft 160 at the high position of the counter case 89, and the handling cylinder driving pulley 116 can be disposed at the high position of the counter case 89 via the handling cylinder driving horizontal shaft 160. . That is, the barrel drive pulley 116 can be compactly supported at a high position within the front-rear width of the counter case 89, and the front-rear width dimension of the counter case 89 can be shortened. The barrel drive belt 117 can be formed in a short length. Maintenance workability around the barrel drive pulley 116 can be improved.

  As shown in FIGS. 5 and 14 to 19, hydraulic oil inside the counter case 89 is circulated between the counter case 89 and a hydraulic device such as the oil cooler 78, and the return oil pipe from the oil cooler 78 is circulated. 79 is branched to return to the high position of the counter case 89 on which the barrel driving horizontal shaft 160 is supported, and the oil pipe 79 is connected. Accordingly, the lubricating structure of the support cylinder drive horizontal shaft 160 support portion can be easily configured without forming a special lubricating oil passage, and the support cylinder drive horizontal shaft 160 support portion can be easily lubricated.

  As shown in FIGS. 5 and 14 to 19, the counter case 89 has a right main body case 92 and a left main body case 91, and the right main body case 92 protrudes upward so as to protrude toward the upper end side of the right main body case 92. A structure in which a handling cylinder drive horizontal shaft 160 is disposed and the inner bottom portion of the right main body case 92 and the inner bottom portion of the left main body case 91 are communicated with each other, and the hydraulic oil flows down from the connecting portion of the return oil pipe 80 of the counter case 89. A groove 92d is provided. Accordingly, the hydraulic oil forcibly lubricated with respect to the barrel driving horizontal shaft 160 moves from the right main body case 92 to the left main body case 91 via the oil flow lower groove 92d and returns to the right main body case 92 side. The pressure can be prevented from increasing. For example, when hydraulic oil in the counter case 89 is circulated between the counter case 89 and the oil cooler 78 or a hydraulic valve or hydraulic actuator (lifting hydraulic cylinder 4), the return oil (handle cylinder) from the oil cooler 78 to the counter case 89 is circulated. It is possible to easily prevent a back pressure from being generated in the hydraulic oil that lubricates the drive horizontal shaft 160.

  As shown in FIG. 19, the threshing sorting operation input shaft 165 is pivotally supported on the counter case 89, and the power of the engine 14 is transmitted to the threshing sorting operation input shaft 165. The threshing sorting operation input shaft 165 is connected to the right input shaft. The right input shaft 165a is supported inside the right main body case 92, and the left input shaft 165b is supported inside the left main body case 91. Accordingly, the counter case 89 can be assembled by combining the right main body case 92 and the left main body case 91 with the gears or shafts assembled to the right main body case 92 and the left main body case 91, respectively. For example, in the right main body case 92, a cylinder driving vertical axis 167 and a cylinder driving horizontal axis 160 as a cylinder driving shaft body are arranged in an L shape, and the cylinder driving pulley 116 is pivoted on the cylinder driving horizontal axis 160. In the supporting structure, the handling cylinder drive horizontal axis 160 is connected from the threshing selection work input shaft 165 (right input shaft 165a) via the handling cylinder drive vertical axis 167 by connecting two pairs of bevel gears 166a, 166b and 168a, 168b. Can transmit power to That is, the handling cylinder driving pulley 116 can be easily disposed at the high position of the counter case 89 via the handling cylinder driving horizontal shaft 160.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Cutting device 5 Threshing device 14 Engine 55 Handling cylinder 62 Grain sorting mechanism 78 Oil cooler 89 Counter case 91 Left side case 92 Right side case 92d Oil flow lower groove 132 Cutting blade 160 Handling cylinder drive horizontal axis body)

Claims (3)

In a combine provided with a traveling machine body mounted with an engine, a reaping device having a cutting blade, a threshing device having a handling cylinder and a grain sorting mechanism, and a counter case for transmitting the power of the engine to the reaping device and the threshing device ,
The counter case has a cutting transmission shaft that transmits the power of the engine to the cutting device, a threshing selection input shaft that transmits the power of the engine to the threshing device, and the driving force of the threshing selection input shaft. A handle cylinder driving shaft that transmits to the cylinder,
The barrel driving shaft is positioned higher than the cutting transmission shaft and the threshing sorting operation input shaft, and is positioned higher than the lubricating oil surface inside the counter case,
Configured to forcibly lubricate the barrel drive shaft ,
The counter case includes a drive shaft support portion for supporting the barrel driving shaft body, and a barrel driving vertical axis for transmitting the driving force of the threshing sorting operation input shaft to the barrel driving shaft body via a bearing body. And a vertical cylinder portion installed inside,
The combine is characterized in that the lubricating oil is supplied from the upper end portion of the vertical cylinder portion to the barrel driving shaft body . In a combine provided with a traveling machine body mounted with an engine, a reaping device having a cutting blade, a threshing device having a handling cylinder and a grain sorting mechanism, and a counter case for transmitting the power of the engine to the reaping device and the threshing device ,
A handling cylinder drive shaft that transmits a driving force to the handling cylinder is provided, and the handling case drive shaft is provided in the counter case, and the handling case is positioned higher than the lubricating oil surface inside the counter case. A cylinder drive shaft is arranged and configured to forcibly lubricate the handle cylinder drive shaft,
The hydraulic oil in the counter case is circulated between the counter case and the oil cooler, and the return oil pipe from the oil cooler is branched to increase the height of the counter case where the handling cylinder drive shaft is supported. Connect the return oil pipe to the position,
The counter case includes a right body case and a left body case, the right body case projects upward, the handling cylinder drive shaft is disposed on the upper end side of the right body case, and the right side case is disposed. A combine having a structure in which the bottom of the main body case communicates with the bottom of the left main body case, and is provided with an oil flow down groove for dropping hydraulic oil from the return oil pipe connecting portion of the counter case. The counter case supports a threshing and sorting operation input shaft, and transmits the engine power to the threshing and sorting operation input shaft. The threshing and sorting operation input shaft is formed by a right input shaft and a left input shaft. The combine according to claim 2 , wherein a right input shaft is pivotally supported inside the right body case, and a left input shaft is pivotally supported inside the left body case.

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