JP4903507B2 - Self-removing combine - Google Patents

Description

  The present invention relates to a structure of a cutting part of a self-removing combine.

  In the self-removing combine of the 6-row mowing specification, for example, as disclosed in Patent Document 1, the 6-row cereal that has been raised in a predetermined posture by the pulling device is cut by the reaping device, The cereals that have been transported to the middle of the cutting width by two pairs by a pair of conveying devices equipped with a stock transporting mechanism and a tip transporting mechanism, fed to the supply transport device, and transported backward by the supply transport device In addition, a cereal conveyance form is employed in which the threshing device is delivered to the starting end of the feed chain in a sideways posture.

In the above cereal conveyance form, among the three sets of merging conveying devices, the conveying device for merging right and left is derived from the front portion of the cutting part frame (14 in FIG. 6 and FIG. 10 in Patent Document 1). A transmission structure that is driven by the vertical rotation power (vertical transmission shaft 43b in FIGS. 6 and 10 of Patent Document 1) is employed.
Japanese Patent Laid-Open No. 2001-148927 (FIGS. 7, 9, and 10)

In the above-described conventional structure, since the forward downward inclination angle of the cutting part frame is larger than the forward downward inclination angle of the merging conveyance device, the transmission shaft inserted into the cutting part frame (FIG. 10 of Patent Document 1). 41), the vertical transmission shaft for taking out the power (43b in FIG. 10 of Patent Document 1) forms a large upright angle, and the transmission shaft and the vertical transmission shaft are substantially connected to the bevel gear. The position of gear occlusion was limited because it was necessary to place bevel gears at right angles or obtuse angles. In this case, since the rotation direction of the transmission shaft inserted through the cutting unit frame is determined by the rotation direction of the other transmission parts, the rotation direction of the vertical transmission shaft is opposite to the direction of driving the merging conveyance device. Thus, the confluence conveying device is driven to rotate in a desired direction through a reverse gear mechanism (43d in FIG. 10 of Patent Document 1).
Therefore, the transmission structure to the merging conveyance device requires many parts and is expensive.

  The present invention has been made paying attention to such points, and its main purpose is to simplify the transmission structure to the transfer device for merging and to reduce the cost.

1st invention equips the cutting part which cuts and conveys a plurality of strips with a straight cylindrical cutting part frame which also serves as a transmission case in a forward-downward inclined posture, and uses the base end part of the cutting part frame as a traveling body. It is connected and supported so that it can swing up and down around the horizontal fulcrum, and the rotational power transmitted to the mowing part frame via the horizontal fulcrum is branched and transmitted to each operating part in the mowing part, and the harvested culm is conveyed backward In the self-removing combine configured to drive the merging conveyance device with the vertical axis rotational power derived from the front portion of the cutting unit frame,
A conveying device for merging located on one side of the left and right sides, and a conveying device for merging located on the other side of the left and right sides, so as to convey the harvested cereals toward the merging point in the middle of the cutting width, Three sets of merging conveyance devices composed of merging conveyance devices located in the middle of the left and right are arranged in parallel,
The front of the cutting unit frame with upright deploy vertical transmission shaft interlinked straight and transmission shaft inserted through the cutting unit frame and a transfer drive shafts and vertical transmission shaft interlocked bevel gear,
By connecting the drive sprockets of the stock transport mechanism and the tip transport mechanism constituting the transport device for merging located in the left and right middle to the upper and lower intermediate portion and the upper end portion of the vertical transmission shaft , the stock transport mechanism And the tip conveying mechanism are arranged in parallel with the transmission shaft inserted through the cutting part frame in a side view .

  According to the above-described configuration, for example, as shown in FIG. 6, the longitudinal transmission shaft 37 is simply connected to the transmission shaft 35 that drives the merging conveyance device by the bevel gear in conjunction with the transmission shaft 35 inserted through the cutting unit frame 10. It can be rotated in the direction of rotation for carrying out the desired conveyance.

  Therefore, according to the first invention, the longitudinal transmission shaft that drives the merging conveyance device can be interlocked with the transmission shaft that is inserted into the cutting unit frame without the reverse gear mechanism, The transmission structure to the transport device can be simplified and the cost can be reduced.

According to a second aspect of the present invention, a reaping portion that carries a plurality of reaping and conveying is equipped with a straight cylindrical reaping portion frame that also serves as a transmission case in a forward downward inclined posture, and the base end portion of the reaping portion frame is used as a traveling machine body. It is connected and supported so that it can swing up and down around the horizontal fulcrum, and the rotational power transmitted to the mowing part frame via the horizontal fulcrum is branched and transmitted to each operating part in the mowing part, and the harvested culm is conveyed backward In the self-removing combine configured to drive the merging conveyance device with the vertical axis rotational power derived from the front portion of the cutting unit frame,
A vertical transmission shaft is installed upright at a front portion of the cutting unit frame so as to be orthogonal or substantially orthogonal to the transmission shaft inserted into the cutting unit frame, and the transmission shaft and the vertical transmission shaft are interlocked with a bevel gear, Connecting the drive sprockets of the stock transport mechanism and the tip transport mechanism constituting the transport device for merging to the direction transmission shaft,
A cylindrical front output case part having a lower end side flange-connected to the mowing part frame is externally fitted to the lower part of the longitudinal transmission shaft,
A drive sprocket of the stock transport mechanism driven by the longitudinal transmission shaft is supported on the upper end of the front output case,
A drive sprocket of the tip transport mechanism is connected to an upper end portion of the longitudinal transmission shaft that extends upward from the drive sprocket of the stock transport mechanism and is exposed to the outside .

  FIG. 1 shows a side view of the front portion of the self-removing combine, and FIG. 2 shows a plan view thereof. The self-decomposing combine is configured such that a cutting unit 3 having a six-row cutting specification is connected to a front part of a traveling machine body 2 including a pair of left and right crawler traveling devices 1 so as to be movable up and down, and a driving unit 4 and a threshing are connected to the traveling machine body 2. The apparatus 5 and the grain collection tank 6 with an unloader are mounted.

  The reaping portion 3 is provided with a straight cylindrical reaping portion frame 10 that also serves as a transmission case in a downwardly inclined posture, and the rear end base portion of the reaping portion frame 10 is erected on the front end portion of the traveling machine body 2. The support base 11 is connected and supported so as to be able to swing up and down about a lateral fulcrum P, and is driven to swing up and down by a hydraulic cylinder 12.

  The mowing unit frame 10 is provided with six pulling devices 13 for raising the planted culm to a predetermined cutting posture, a clipper-type mowing device 14 for cutting the raised planting culm, and the pulling culm for each item. Auxiliary conveyor belt 15 that gently rakes back each time, a rotary packer 16 that rakes and conveys the roots of the harvested cereals for each line, and conveys the reaped cereals to the intermediate part within the cutting width by two lines. Three sets of conveying devices (hereinafter referred to as “conveying devices for merging”) 17, 18, 19, and the combined cereals are fed to the start end of the feed chain 7 provided on the lateral outer side of the threshing device 5. And the like.

  The transport device 17 for merging on the left side of the machine body is composed of a stock transport mechanism 17a that sandwiches and transports the stock of the two left-handed cereal crops and a tip transport mechanism 17b that locks and transports the head. The merging transport device 18 is configured by a stock transport mechanism 18a and a tip transport mechanism 18b for two middle strips, and the merging transport device 19 on the right side of the machine body is a stock transport mechanism for the right two strips. 19a and a tip transport mechanism 19b. The auxiliary transport belt 15 and the rotary packer 16 are provided at the front ends of the stock transport mechanisms 17a, 18a, and 19a, respectively, and the adjacent rotary packers 16 are interlocked with each other in units of two strips.

  The supply and transport device 20 includes a tip locking transport mechanism 21 formed by extending the tip transport mechanism 19b of the confluence transport device 19 on the right side of the machine body to the front of the feed chain 7, and three sets of the transport devices 17 for the merge. , 18 and 19, the stock holding and conveying mechanism 22 extending rearward from the cereal merging point, and a horizontally-turned relay conveying mechanism 23 provided in front of the feed chain 7. The corn flour in the standing posture joined by the merging conveying devices 17, 18, 19 is received by the start end portion of the supply conveying device 20, and the corn straw is changed into a sideways posture while being conveyed rearward and upward, so that the feed chain 7. It is designed to be handed over to the beginning.

  The stock holding and conveying mechanism 22 swings up and down around the front fulcrum and changes the conveyance end position, thereby changing the cereal delivery position to the feed chain 7 in the cocoon length direction to the threshing device 5. A function to change and adjust the cereal insertion length, a so-called handling depth adjustment function, is provided.

  As shown in FIG. 3, the main transmission shaft 25 is inserted into the proximal end boss portion 10 a of the cutting unit frame 10 concentrically with the lateral fulcrum P, and the right end of the main transmission shaft 25 is connected to the PTO shaft 27 of the transmission case 26. The belt is linked. The mission case 26 is connected with a hydrostatic continuously variable transmission 29 that is linked to the engine 28, and the forward or reverse speed change power from the continuously variable transmission 29 is incorporated into the mission case 26. The sub-transmission mechanism (not shown) is gear-shifted to a plurality of stages and transmitted to the left and right crawler travel devices 1 so as to be able to move forward and backward by a continuously variable transmission.

  Of the speed change power input to the transmission case 26 from the continuously variable transmission 29, only the forward rotation power is taken out from the PTO shaft 27 and transmitted to the main transmission shaft 25, and the rotational power in a certain direction of the main transmission shaft 25 is trimmed. As will be described later via the part frame 10, it is transmitted to each part, and the pulling device 13, the mowing device 14, the auxiliary transport belt 15, the rotary packer 16, the transport devices 17, 18, 19 for merging, and the supply transport device 20 is driven at a speed synchronized with the traveling speed.

  Near the left end portion of the base end boss portion 10a in the reaping portion frame 10, a main transmission shaft 25 is equipped with a vertical transmission shaft 30 linked to a bevel gear, and the supply / conveyance device is driven by the power extracted from the vertical transmission shaft 30. The tip locking conveyance mechanism 21 and the relay conveyance mechanism 23 in 20 are driven.

  As shown in FIG. 4, a transmission shaft 31 that is linked to the main transmission shaft 25 through a bevel gear is inserted into the rear half of the cutting unit frame 10, and an intermediate output case unit 32 is provided at the front and rear intermediate portions of the cutting unit frame 10. Is erected. The intermediate vertical transmission shaft 33 inserted and supported by the intermediate output case portion 32 is linked to the transmission shaft 31 with the bevel gear, and the power extracted from the intermediate vertical transmission shaft 33 is used in the merging transfer device 19 on the right side of the machine body. The stock transport mechanism 19a is driven.

  An output boss portion 32a extends obliquely from the base portion of the intermediate output case portion 32, and the oblique transmission shaft 34 inserted and supported by the output boss portion 32a and the intermediate longitudinal transmission shaft 33 are interlocked with the bevel gear, thereby obliquely transmitting. The stock holding and transport mechanism 22 in the supply transport device 20 is driven by the power extracted from the shaft 34.

  A transmission shaft 35 associated with a bevel gear at the lower end of the intermediate longitudinal transmission shaft 33 is inserted and arranged concentrically with the transmission shaft 31 provided in the rear half of the cutting portion frame 10 in the front half of the cutting portion frame 10. Yes. As shown in FIG. 6, a front output case portion 36 is erected on the front portion of the cutting unit frame 10, and a front longitudinal transmission shaft 37 and a transmission shaft 35 that are inserted and supported by the front output case portion 36. Are linked to the bevel gear, and the drive sprockets 18c and 18d of the stock transport mechanism 18a and the tip transport mechanism 18b constituting the transport device 18 for merging the two central strips are connected to the front vertical transmission shaft 37. . As shown in FIGS. 4 and 6, the whole of the cutting unit 3 is centered on the vicinity of the upper end of the intermediate output case 32 (near the rear end of the stock transport mechanism 19a in the transport device 19 for confluence on the right side of the machine body). The arrangement is rotated slightly in the clockwise direction in FIG. As a result, the forward downward inclination angle of the merging conveyance device 18 and the forward downward inclination angle of the reaping portion frame 10 are set to be substantially the same, and the front longitudinal transmission shaft 37 orthogonal to the merging conveyance device 18 is reaped. The transmission shaft 35 inserted in the front part of the part frame 10 is arranged substantially orthogonally. The bevel gear 35a of the transmission shaft 35 is positioned on the side of the lateral transmission shaft 42 described later with respect to the bevel gear 37a of the vertical transmission shaft 37, and the bevel gear 37a of the vertical transmission shaft 37 and the bevel gear 35a of the transmission shaft 35 are engaged. is doing.

As described above and shown in FIG. 4, the entire cutting part 3 is slightly rotated in the clockwise direction in FIG. 4. The center of gravity is reduced. The position of the cutting blade drive case 41 described later is higher than the position of the cutting blade drive case of Patent Document 1 (the difference in height between the cutting device 14 and the cutting blade drive case 41 is large), The accumulation of mud and straw scraps near and below the cutting blade drive case 41 is reduced.
A horizontally long cutting blade drive case 41 is connected to the front end of the cutting unit frame 10, and a lateral transmission shaft 42 inserted through the cutting blade drive case 41 is linked to the front end of the transmission shaft 35 of the cutting unit frame 10 with a bevel gear. ing. On the left and right sides of the cutting blade drive case 41, a cutting blade drive shaft 43 that is linked to a lateral transmission shaft 42 with a bevel gear is provided. Although not shown, the mowing device 14 is configured to have a vibration damping specification in which a pair of left and right movable cutting blades divided at the center of the cutting width are reciprocally driven reciprocally. The blade is driven in a reciprocating manner with a constant stroke in conjunction with the cutting blade drive shaft 43.

  A pair of struts 44 are erected from near the left and right ends of the cutting blade drive case 41, and the counter shaft 47 for raising and driving is inserted into a counter case 46 that is horizontally connected across the upper ends of both struts 44. At the same time, the upper part of the raising device 13 is connected to each of the raising drive cases 48 connected in parallel to the counter case 46.

  As shown in FIG. 8, the column 44 on the left side of the machine body is configured in a cylindrical shape through which the vertical transmission shaft 49 is inserted, and the lower end of the vertical transmission shaft 49 is connected to the horizontal transmission shaft 42 of the cutting blade drive case 41. Bevel gear is linked. A shift case 50 is installed at the top of the column 44 and the counter case 46 is connected to the left end of the shift case 50.

  The pulling speed change case 50 is equipped with a gear shift type pulling speed change mechanism 52 that shifts the power from the vertical transmission shaft 49 in two steps to take it out from the output shaft 51, and outputs the output shaft 51 and the counter shaft 47. Are interlocked with the bevel gear, and are all pulled up by the power that is raised from the counter shaft 47 and transmitted through the drive case 48 to be driven synchronously.

  An output case 53 is connected to a lower portion of the column 44 on the left side of the machine body. A longitudinal transmission shaft 54 provided in the output case 53 and a longitudinal transmission shaft 49 inserted through the column 44 form an intermediate shaft 55. The stock transport mechanism 17a and the tip transport mechanism 17b in the confluence transport device 17 on the left side of the machine body are driven by the power extracted from the vertical transmission shaft 54 through the bevel gear.

[Other Examples]
The present invention can also be applied to a four-part specification, five-part specification cutting part.

Combine side view Top view of the cutting part Plan view showing the transmission system of the mowing unit Side view of a part of the cutting part Front view showing the front part of the transport system in the cutting part Longitudinal side view showing the drive structure of the central confluence conveying device Rear view of pulling device drive structure Longitudinal front view showing part of the pulling device drive structure

3 mowing parts
10 Mowing unit frame 13 Lifting device 17 Conveying device (conveying device for merging)
18 Conveying device (conveying device for merging)
18a Stock transport mechanism 18b Tip transport mechanism 18c Drive sprocket 18d Drive sprocket 19 Transport device (conveyance device for merging)
35 Transmission shaft
36 Front output case 37 Vertical transmission shaft P Horizontal fulcrum

Claims (2)

Equipped with a straight cylindrical reaping section frame that also serves as a transmission case in a forward and downward tilting posture on the reaping section that transports multiple strips, the base end of this reaping section frame is swung up and down around the fulcrum horizontally Conveying device for merging and supporting the movably harvested cereals rearward, configured to movably connect and support, and to transmit the rotational power transmitted to the mowing unit frame via the lateral fulcrum to each operating part in the mowing unit. In a self-removing combine that is configured to be driven by the vertical axis rotational power derived from the front portion of the cutting unit frame,
A conveying device for merging located on one side of the left and right sides, and a conveying device for merging located on the other side of the left and right sides, so as to convey the harvested cereals toward the merging point in the middle of the cutting width, Three sets of merging conveyance devices composed of merging conveyance devices located in the middle of the left and right are arranged in parallel,
The front of the cutting unit frame with upright deploy vertical transmission shaft interlinked straight and transmission shaft inserted through the cutting unit frame and a transmission shaft and vertical transmission shaft interlocked bevel gear,
By connecting the drive sprockets of the stock transport mechanism and the tip transport mechanism constituting the transport device for merging located in the left and right middle to the upper and lower intermediate portion and the upper end portion of the vertical transmission shaft , the stock transport mechanism The self-detaching combine , wherein the tip and the tip transport mechanism are arranged in parallel with a transmission shaft inserted through the cutting part frame in a side view . Equipped with a straight cylindrical reaping section frame that also serves as a transmission case in a forward and downward tilting posture on the reaping section that transports multiple strips, the base end of this reaping section frame is swung up and down around the fulcrum horizontally Conveying device for merging and supporting the movably harvested cereals rearward, configured to movably connect and support, and to transmit the rotational power transmitted to the mowing unit frame via the lateral fulcrum to each operating part in the mowing unit. In a self-removing combine that is configured to be driven by the vertical axis rotational power derived from the front portion of the cutting unit frame,
A vertical transmission shaft is installed upright at a front portion of the cutting unit frame so as to be orthogonal or substantially orthogonal to the transmission shaft inserted into the cutting unit frame, and the transmission shaft and the vertical transmission shaft are interlocked with a bevel gear, Connecting the drive sprockets of the stock transport mechanism and the tip transport mechanism constituting the transport device for merging to the direction transmission shaft,
A cylindrical front output case part having a lower end side flange-connected to the mowing part frame is externally fitted to the lower part of the longitudinal transmission shaft,
A drive sprocket of the stock transport mechanism driven by the longitudinal transmission shaft is supported on the upper end of the front output case,
A self-removal mechanism characterized in that a drive sprocket of the tip transport mechanism is connected to an upper end portion of the longitudinal transmission shaft that extends upward from the drive sprocket of the stock transport mechanism and is exposed outward. Type combine.