JP6168217B2 - Combine - Google Patents

Description

  The present invention relates to a combine.

  Conventionally, as shown in Patent Document 1 below, in order to increase the safety of handling operations, the lateral side of the conveying start end of the threshing feed chain is raised to a position higher than the conveying action area of the threshing feed chain. A moving handle plate is provided, and an auxiliary clamping rod that holds the culm between the threshing feed chain and the conveying start end of the threshing feed chain can be turned up and down at the upper side of the conveying start end of the threshing feed chain. There is known a technique of providing and handling the auxiliary clamping rod upward during the handling operation and retracting it, and moving the handling plate upward.

  In addition, as shown in Patent Document 2 below, a technique is known in which a hand switch for driving a feed chain for conveying cereals at a constant speed is provided in a threshing device in order to improve the workability of the hand handling work. It has been.

JP 2007-14287 A JP 2008-278785 A

  However, in the technique described in Patent Document 1, since the handling plate moves upward during the handling operation and inhibits the conveying action of the threshing feed chain, the grain mash that has been hand-chopped at the conveying start end of the threshing feed chain. Even if placed, this cereal cannot be actively supplied to the threshing device, and there is a problem that the efficiency of the handling operation is reduced.

  Further, the technique described in Patent Document 2 has a problem that the efficiency of the handling operation is reduced because the handling switch has to be manually pressed when switching from the normal cutting operation to the handling operation. It was.

  Therefore, the main problem of the present invention is to eliminate such problems.

  In order to solve the above problems, the present invention has taken the following technical means.

  That is, the invention according to claim 1 is provided with a threshing device (4) on the rear side of the reaping device (3), and is conveyed from the reaping device (3) side to the left and right sides of the threshing device (4). In the combine provided with the threshing feed chain (8) that takes over the cereal and supplies it to the threshing device (4), the conveying start end of the threshing feed chain (8) is provided at the conveying start end of the threshing feed chain (8). Threshing by retreating upward from the conveying start end of the threshing feed chain (8), and a regulated state in which the supply of the hand-held cereal straw to the threshing feed chain (8) is restricted. A handling restriction member (18) that switches to an unregulated state that allows supply of the hand-held cereal meal to the feed chain (8) is provided, and a conveyance start end of the threshing feed chain (8) in the restricted state; Hand handling restriction member (18) In between, it is set as the structure by which the clearance gap of the up-down direction used as the conveyance path | route of the grain straw handed over to the threshing feed chain (8) side is maintained from the reaping device (3) side, It is configured so that it can be pivoted up and down around the horizontal axis (22) on the side of the reaping device (3), and the regulation release state appears by the upward rotation of the handling regulation member (18). A takeover guide rod (23) that elastically presses the cereal rice cake that is handed over from the reaping device (3) side to the conveying start end portion of the threshing feed chain (8) to the upper surface of the conveying start end portion of the threshing feed chain (8). , And the combiner is characterized in that the front end portion of the takeover guide rod (23) is supported on the cutting device (3) side.

  The invention according to claim 2 is a holding rail (9) for holding a cereal basket with the threshing feed chain (8) on the upper side of the rear part of the threshing feed chain (8). The combine according to claim 1, wherein the rear end portion of the hand-handling restricting member (18) in the restricted state is positioned behind the front end portion of the holding rail (9).

  The invention according to claim 3 is configured such that the handling restriction member (18) in the restriction release state is held in a posture in which the rear end portion is biased to the front side with respect to the horizontal axis (22). The combine according to claim 1 or claim 2.

  According to a fourth aspect of the present invention, the feed chain (8) is driven at a speed synchronized with the driving speed of the reaping device (3) when the handling control member (18) is switched to the control state. When the handling restriction member (18) is switched to the restriction release state, the drive speed of the feed chain (8) is maintained at a constant rotation speed regardless of the drive speed of the cutting device (3). The combine according to any one of claims 1 to 3, which is configured as described above.

  According to the first aspect of the present invention, at the time of cutting and threshing work, the handling control member (18) is disposed at a position facing the upper side of the conveyance start end of the threshing feed chain (8), thereby the threshing feed chain. (8) The supply of the hand-held cereal meal to the start end can be regulated. In this state, the reaping device (3) is provided between the transport start end of the threshing feed chain (8) and the hand-handling regulating member (18). Since the gap in the vertical direction that serves as the conveyance path for the cereals that are handed over from the threshing feed chain (8) side is maintained, the cereals are handed over from the reaping device (3) side to the threshing feed chain (8) side. It can be performed smoothly, and the efficiency of the mowing and threshing work is increased.

  During the handling operation, the handling control member (18) is retracted upward from the conveyance start end of the threshing feed chain (8), so that it can be handled to the conveyance start end of the threshing feed chain (8). The cereal can be easily supplied, and the threshing can be actively fed to the threshing device (4) by the conveying action of the threshing feed chain (8) for threshing treatment.

  Further, the hand handling restricting member (18) is attached so as to be pivotable up and down around the horizontal axis (22) on the cutting device (3) side, and by the upward turning of the hand handling restricting member (18), Since the restriction release state appears, the hand is closer to the conveyance start end side of the threshing feed chain (8) than the structure in which the front part of the handling restriction member is lifted and rotated with the threshing device side as a fulcrum. A wide space for handling cereals can be formed, and hand handling work can be easily performed.

  According to invention of Claim 2, in addition to the effect by the invention of Claim 1, the rear-end part of the handling control member (18) in a control state opposes the upper side of the threshing feed chain (8). Since it is located behind the front end portion of the sandwiching rail (9) that is arranged, in the cutting and threshing work, the cereals that have passed through the conveyance passage formed below the handling restriction member (18) are sandwiched by the rail ( 9) Guided smoothly to the lower side, efficiency of cutting and threshing work is increased.

  According to invention of Claim 3, in addition to the effect by the invention of Claim 1 or Claim 2, the handling control member (18) in the restriction release state has the rear end portion as a vertical rotation fulcrum. Since it is held in a posture biased to the front side of the horizontal axis (22), it is possible to form a wider space for hand-handled cereal supply and to facilitate the hand-work operation.

  According to the invention of claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, when the handling restriction member (18) is switched to the restriction state, Since the feed chain (8) is driven at a speed synchronized with the driving speed of the reaping device (3), the transfer of the cereal from the reaping device (3) to the threshing feed chain (8) is facilitated. The occurrence of clogging is reduced and the efficiency of harvesting work is increased.

  Further, when the handling restriction member (18) is switched to the restriction release state, the drive speed of the feed chain (8) is maintained at a constant rotation speed regardless of the drive speed of the reaping device (3). Therefore, the hand-held cereal meal can be easily supplied to the threshing feed chain (8).

Combine side view Top view of the combine Side view of the main part of the combine Top view of the main part of the combine Schematic showing the power transmission mechanism of the main part of the combine Side view of the main part of the combine Cut side view of the main part of the combine Expanded side view of the main part Front view of the main part of the combine Front view of the main part

  An embodiment of the present invention will be described with reference to the drawings.

  The combine mainly threshs the harvesting portion (reaping device) 3 at the front of the vehicle body 1 provided with the traveling crawler (traveling device) 2 that harvests and transports the napped grain straw and the grain straw conveyed and supplied from the harvesting portion 3. It consists of a threshing device (threshing unit) 4 at the rear of the vehicle body.

  The traveling crawler 2 receives an output rotation from a traveling continuously variable transmission (first continuously variable transmission) 50 that continuously changes the driving force to the engine E and transmits it to the traveling crawler 2 via a traveling mission 51. Is transmitted.

  The cutting unit 3 is mounted on a cutting support frame 6 that can be moved up and down with respect to the cutting suspension stand 5 protruding upward from the traveling frame 1a of the vehicle body 1 and provided along the front-rear direction. The harvesting and conveying cereal from the reaping unit 3 includes a threshing feed chain 8 provided along one side of the handling chamber of the handling cylinder 7 of the threshing unit 4 and a spring for energizing the spring at a position facing this upper side. It is configured to be inherited between the holding rail 9 having a U-shaped cross section supported via 9a.

  Moreover, the said cutting part 3 is the weeding body 10,10 ... which divides the mashing to the right and left, the cedar raising apparatus 11 for 6 rows which raises the mashing after weeding, and after raising A clipper-type cutting blade device 12 that harvests cereals, a scraping and transporting device that scoops and transports the harvested culms, takes up and transports the cereals that have been scraped and transported to the rear threshing unit 4 It consists of the harvested cereal masher 13 and the like.

  On the terminal side of the harvested cereal masher 13, a stock source side supply chain 14 and a supply chain 15 with a tip lug on the side of the threshing part 4 are provided. The threshing feed chain 8 is arranged and configured to inherit the culm with an appropriate posture.

  In the state of cutting and threshing while being self-propelled, a hand-holding restraining member (hand-handling restricting member) 18 that covers the top end of the threshing feed chain 8 is provided so as to prevent hand-feeding of the cereal. At the time of handling operation to manually supply the harvested cereals into the handling chamber, the handling handle check member is pushed upward to stand up, thereby opening the top end of the threshing feed chain and raising the hand. The handling mode switch 19 is turned on to switch the threshing feed chain 8 from the shift control state linked to the vehicle speed to the handling mode in which the threshing feed chain 8 rotates at a constant speed. In addition, the handling control member 18 forms the cross-sectional shape of the left-right direction in a U shape or L shape.

  The hand-controlling member 18 is located in a predetermined position above the top surface of the start end portion of the threshing feed chain 8 (corrosion passage for cereals), and is in a corresponding position to cover the top of the feed chain 8. It is configured to be switchable between a (regulated state) A and a standing open posture (regulated release state) B that can be handled by hand. The front end portion of the member 18 is pivotally supported by a horizontal axis 22 in the horizontal direction in the horizontal direction installed on the conveyance support frame portion 21 of the conveyance device attached to the cutting side frame 20. The end side swings up and down with the horizontal shaft 22 as a pivot. The above-described hand-handling mode switch 19 detects the rotation angle of the hand-handling check member 18 around the horizontal axis 22 or when the hand-handling check member 18 is in the hand-handling restraining posture A. By being in contact with the handling check member 18, the handling mode is configured to be effective.

  In addition, the rear end portion of the hand-holding check member 18 faces the start end portion of the holding rail 9 provided on the upper side of the threshing feed chain 8 in a state of being superposed in a side view. A notch 18a is provided at the rear end of the check member 18 so as not to hinder the vertical movement of the holding rail 9.

  Further, in the standing open posture B state of the handling check member 18, a forward tilted posture in which the upper end side is the front and the lower end side is the rear (the posture in which the rear end portion is biased to the front side relative to the horizontal shaft 22). Is configured to maintain.

  On the upper surface of the start end portion of the threshing feed chain 8, a takeover guide rod 23 having an elastic pressing force weaker than the clamping force by the clamping rail 9 is provided, and a horizontal fulcrum of the handling check member 18. The shaft 22 is mounted on the same axis.

  A stay 23 a is provided at the base portion of the hand over guide rod 23, and the hand control member 18 in the hand control posture A has a pin 18 b provided on the base side of the hand control member 18. By contacting the upper edge of 23a, the threshing feed chain 8 is held in a state of being vertically separated.

  Grains that are handed over to the threshing feed chain 8 from the harvested grain straw transporting device 13 are transported through the lower side of the takeover guide straw 23, but when the succeeding grain straw increases, the takeover guide straw 23 is pushed upward. In addition, since the hand-holding check member 18 rises, it is possible to prevent the hand-holding check member 18 from coming into contact with the cereal.

  When performing hand-handing work, the tip side of the hand-harvested cereal cocoon is placed on the supply receiving plate 25 made of a rubber plate facing the supply funnel 24 into the handling chamber, and the stocker side is placed on the takeover guide rod 23 and It is handed and supplied on the start end of the feed chain.

  Next, a power transmission mechanism that transmits power from the engine E to the threshing unit 4 will be described. As shown in FIG. 5, the engine E is linked from the output shaft 30 of the engine E to the threshing counter shaft 31 via a pulley and a belt. Further, the threshing counter shaft 31 is interlocked with a handling cylinder input shaft 32 from the threshing counter shaft 31 to the handling cylinder 7 via a pulley and a belt, and is hydraulically stepped through a counter pulley 33, an HST input pulley 34 and an HST input belt 36. It is linked to an HST input shaft 35 to a device (second continuously variable transmission, HST) 37. Further, the threshing counter shaft 31 is interlocked to transmit power to a sorting device 55 such as a processing cylinder 38, a red pepper 39, or a swing sorting shelf via a pulley and a belt.

  Further, the output shaft 30 of the engine E and the traveling continuously variable transmission 50 are interlocked, and the power from the traveling continuously variable transmission 50 is transmitted to the traveling mission 51.

  In the traveling mission 51, left and right side clutches (not shown) for connecting and disconnecting transmission to the left and right traveling crawlers 2 are provided. By disconnecting both the left and right side clutches, the traveling crawler 2 Is stopped and only one of the left and right side clutches is disconnected to turn the aircraft.

  Further, the rotation output from the continuously variable transmission 50 for traveling is transmitted to the cutting unit 3 from the upper side than the side clutch in the traveling mission 51. Thereby, the cutting part 3 is driven at a speed synchronized with the traveling speed of the airframe.

  Further, a cutting clutch 54 is provided between the output shaft 52 that outputs the driving force for the cutting unit 3 from the traveling mission 51 and the upper transmission shaft 53 of the cutting unit 3.

  From the HST 37, the threshing feed chain 8 is rotationally driven via the reduction gear mechanism 41 in the reduction gear case 40, the reduction output shaft 42, and the feed chain drive sprocket 43. In the threshing feed chain 8, a chain rail 8b is integrated with a frame 8a that is pivotally supported by a vertically swinging opening / closing fulcrum shaft 26 (see FIG. 10) installed in the front, and a shaft is formed at the front end of the chain rail 8b. An idler wheel 8c that is supported, an idler wheel 8d that is pivotally supported at the rear end of the chain rail 8b, a drive wheel 8e that is driven by the HST 37, and a tension ring 8f that is disposed between the idler wheel 8c and the drive wheel 8e. Wrap around. Thereby, the threshing feed chain 8 swings and opens in the left-right direction with the swing opening / closing fulcrum shaft 26 as a fulcrum, and when the threshing feed chain 8 rotates outward from the machine body, the feed chain drive sprocket 43 on the moving side and the machine body The engagement with the coupling gear provided at the shaft end of the stationary deceleration output shaft 42 is released.

  The HST 37 is installed in the front part of the handling barrel 7 chamber of the threshing unit 4 and in a space behind the cutting suspension base 5 where the cutting part is suspended, and connects the left and right cutting suspension bases 5 and 5. A support frame 46 that connects the member 44 and the bearing member 45 of the threshing countershaft 31 that is installed in the horizontal direction on the front side of the threshing portion is mounted and supported via the reduction gear case 40. Further, the HST 37 is disposed near the right side (hand barrel side) of the threshing feed chain 8 and is set at a position behind the starting end of the feed chain.

  Further, the HST 37 is configured to shift-control only the threshing feed chain 8 alone, but this can arbitrarily increase / decrease the threshing feed chain by operating the HST trunnion arm with a shift motor. Further, the threshing feed chain 8 can be shift-controlled by driving the HST in conjunction with the vehicle speed.

  With the above configuration, in the state where the hand restraint member 18 is in the hand restraint posture A, the hand handling mode is OFF, and the HST 37 shifts in synchronization with the output rotation speed of the continuously variable transmission 50 for traveling. Then, the cereals are smoothly taken over and conveyed from the reaped cereal conveyance device 13 of the reaping unit 3.

  Further, in the state where the hand-controlling member 18 is in the standing open posture B, the hand-handling mode is ON, and the threshing feed chain 8 is operated at a constant driving speed unrelated to the traveling speed of the machine body and the driving speed of the cutting unit 3. The shift position of the HST 37 is fixed so as to be driven.

  Although not shown in the drawings, the emergency stop switch button of the combine may be disposed behind and above the handling control member. Moreover, a switch can also be arrange | positioned in the position where the handling operator can visually confirm the ON state of the handling mode switch.

  Moreover, if a clogging sensor is provided in the takeover part between the terminal part of the harvested cereal conveying apparatus and the start part of the threshing feed chain, the cereal clogging can be quickly detected and dealt with.

  If a piano wire with a shape that follows the tip trajectory of the chain plate is provided outside the start end of the threshing feed chain, the action of the chain can be moderately suppressed, and the posture of the transporting culm at low speed and small amount of cutting is established. It is possible to prevent the former leading.

  Also, if the peak of the threshing feed chain on the stock side side of the chain plate is made higher than the peak on the tip side of the chain plate, the tip side will become lower, and the feed chain will act too much at the time of cutting and taking over, so that It can be prevented from becoming a leader.

  Also in the waste straw transport chain, the height of the chain plate mountain is set in the same manner as described above, so that the tip side is lowered, and the posture of the heel can be easily corrected when the lug of the tip chain acts.

3 Cutting part (reaping device)
4 Threshing device 8 Threshing feed chain 9 Clamping rail 18 Hand-holding control member (hand-handling control member)
22 Horizontal shaft 23 Takeover guide rod 37 HST (second continuously variable transmission)
50 continuously variable transmission for travel (first continuously variable transmission)

Claims (4)

The threshing device (4) is provided on the rear side of the reaping device (3), and the threshing device (4) is handed over to the left and right sides of the threshing device (4) by the cereals conveyed from the reaping device (3). In the combine equipped with the threshing feed chain (8) to be fed to the threshing feed chain (8), the conveying start end is arranged at a position facing the upper side of the conveying start end of the threshing feed chain (8). The regulation state that regulates the supply of hand-held cereal meal to the threshing feed chain (8), and the handling to the threshing feed chain (8) by retreating upward from the conveying start end of the threshing feed chain (8) A handling control member (18) that switches to a regulation release state that allows the supply of cereals is provided, and includes a conveyance start end of the threshing feed chain (8) and a handling regulation member (18) in the regulation state. In the meantime, from the mowing device (3) side A structure in which the vertical clearance as the conveying path of culms carried over to the grain feed chain (8) side is maintained,
The hand handling restricting member (18) is attached so as to be pivotable up and down around the horizontal axis (22) on the reaping device (3) side. It is configured so that the deregulation state appears,
There is a takeover guide rod (23) that elastically presses the cereal rice cake that is handed over from the reaping device (3) side to the conveying start end portion of the threshing feed chain (8) to the upper surface of the conveying start end portion of the threshing feed chain (8). A combine, comprising: a front end portion of the takeover guide rod (23) supported on the reaping device (3) side.   On the upper side of the rear part of the threshing feed chain (8), the sandwiching rail (9) that holds the cereal straw with the threshing feed chain (8) is disposed opposite to the regulation state. The combine according to claim 1, wherein the rear end portion of the hand-holding restricting member (18) is positioned rearward of the front end portion of the holding rail (9).   The hand-handling restriction member (18) in the restriction release state is configured to be held in a posture in which a rear end portion thereof is biased to the front side with respect to the horizontal axis (22). Combine.   When the hand control member (18) is switched to the control state, the feed chain (8) is driven at a speed synchronized with the driving speed of the mowing device (3), and the hand control member ( 18 is a configuration in which the feed chain (8) is maintained at a constant rotational speed regardless of the drive speed of the reaping device (3) when 18) is switched to the regulation release state. The combine according to any one of claims 3 to 4.

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