JP2012029568A - Reaping and transporting part of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate mounting and demounting operation of a rasing up device for a reaping and transporting part, and to speed up and facilitate maintenance operation in a combine harvester.SOLUTION: The reaping and transporting part is composed by: installing a slide supporting frame body (65) along the right and left directions under an upper part raising up transmission cylindrical body (46); and axially supporting the raising up device (61) through a link (66b) on the slide supporting frame body (65) so that, when the link (66b) is rotated to the rear side and the raising up device (61) is brought close to the slide supporting frame body (65), the raising up device (61) is moved to a reaping operation position and a raising up input transmission shaft (51) is connected to a driving sprocket (61c) to come into a power transmission state, and when the link (66b) is rotated to the front side and the raising up device (61) is separated from the slide supporting frame body (65) to the front, the raising up device (61) is moved to a maintenance position and the raising up input transmission shaft (51) is separated from the driving sprocket (61c) to come into a non-power transmission state and the raising up device (61) further come into a state movable to the right and left along the slide supporting frame body (65).

Description

  The present invention relates to a harvesting and conveying unit for a combine.

  In the grain raising device provided in the harvesting and conveying section of the combine, the pulling drive sprocket, driven roller, endless chain with raising tine, front lid, back lid, etc. are unitized as one grain raising case and built in the raising gear case The spline part of the pulling drive shaft is spline-fitted into the spline hole of the pulling side bevel gear, and the upper part of the back side of the grain raising case and the raising gear case are detachably fastened with a fastener, making maintenance of the grain raising case easy What is made is known.

JP 2007-75031 A (pages 11 to 12, FIG. 10)

  In the prior art shown in the above-mentioned Patent Document 1, the culm pulling case and the pulling gear case are detachably fastened with a fastener, and the cereal pulling case removed at the time of maintenance is placed around the fuselage to perform maintenance work. When it is finished, it is configured to bring and attach the grain raising case. Therefore, when a plurality of pulling cases are removed, it must be mounted while checking the mounting position of the grain raising case adjacent to the pulling gear case, and the mounting work becomes complicated and the maintenance work cannot be performed quickly. was there.

  Therefore, the present invention is intended to solve such problems, facilitate the attaching / detaching operation of the pulling device with respect to the cutting and conveying unit, and facilitate the maintenance work quickly.

In order to solve the above problems, the present invention has taken the following technical means.
According to the first aspect of the present invention, a plurality of pulling input transmissions driven from the upper pulling transmission shaft (45) are constructed by installing an upper pulling transmission cylinder (46) that houses the upper pulling transmission shaft (45) in the left-right direction. A shaft (51) is provided, and a plurality of pulling devices (61) provided on the front side of the cutting and conveying section (6) are driven from the pulling input transmission shaft (51), and a pulling case ( The drive sprocket (61c) bearing on the 61a) side is configured to be able to cut off and connect power by moving in the front-rear direction with respect to the pulling input transmission shaft (51), and the upper pulling transmission cylinder (46). A slide support frame (65) is provided along the left-right direction below, and the movable body (66a) is supported by the slide support frame (65) so as to be movable in the left-right direction. The movable body (66a) Provided with link (66b) to connect one end The supporting means (66) is provided, the upper part of the pulling case (61a) is pivotally supported at the other end of the link (66b), and the link (66b) is rotated rearward to pull the pulling device (61). Is moved closer to the slide support frame (65), the pulling device (61) is moved to the cutting work position, the pulling input transmission shaft (51) and the drive sprocket (61c) are connected to be in a power transmission state, On the other hand, when the link (66b) is rotated forward and the pulling device (61) is moved forward from the slide support frame (65), the pulling device (61) moves to the maintenance position and the pulling input transmission shaft ( 51) and the drive sprocket (61c) are disengaged to enter a non-power transmission state, and the pulling device (61) is configured to be movable to the left and right along the slide support frame (65). Combine to It was cutting the transport unit.

According to a second aspect of the present invention, there is provided the combine cutting and conveying section according to the first aspect, wherein the link (66b) of the support means (66) is configured to be extendable and contractible.
The invention according to claim 3 is characterized in that a plurality of the pulling devices (61) are connected to each other and supported by the link (66b) of the support means (66). A transport unit was used.

  According to a fourth aspect of the present invention, the drive sprocket (61c) of the pulling device (61) is provided with a lock member (76) that can be engaged and disengaged, and the handle (76b) integrated with the lock member (76) is pulled up. (61) protruding to the front surface of the drive sprocket (61c) with the lock member (76) engaged, and the handle (76b) to the posture along the front surface of the pulling device (61) to switch the lock member 4. The structure according to claim 1, wherein the drive sprocket (61c) can be switched to a state in which the drive sprocket (61c) can be rotated by detaching the drive sprocket (61c). This was a harvesting and conveying section for the combine harvester.

  According to the first aspect of the present invention, when the pulling device (61) is separated from the slide support frame (65) by the rotation of the link (66b) of the support means (66), the pulling device (61) is not transmitted with power. The pulling device (61) can be moved to the left and right along the slide support frame (65) to form a maintenance space on the front side of the cutting and conveying unit (6). it can. Further, when the maintenance work is completed, the pulling device (61) can be moved to the center in the left-right direction along the slide support frame (65) and returned to the cutting work position, so that the maintenance work can be easily performed. The efficiency of mowing work is increased.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the length of the protrusion to the front side can be increased by expanding and contracting the link (66b) of the support means (66). A wide maintenance space can be formed in which the pulling device (61) is largely separated from the front side.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the plurality of pulling devices (61, 61) are provided on the link (66b) of the single support means (66). Since they are attached, the plurality of pulling devices (61, 61) can be moved to the cutting operation position and the maintenance position all at once, and the maintenance can be performed quickly.

  According to the invention of claim 4, in addition to the effect of the invention of claim 1, 2 or 3, the lock member (76) is engaged with the drive sprocket (61c) of the pulling device (61). The locked state prevents the rotation of the drive sprocket (61c) of the pulling device (61) during the maintenance work, prevents the phase shift of the pulling lug (61e), The pulling input transmission shaft (51) and the drive sprocket (61c) can be easily engaged. Moreover, when the lock member (76) is engaged with the drive sprocket (61c), the handle (76b) protrudes forward of the pulling device (61), and the pulling device (61) can be easily moved to the maintenance position. In a normal cutting operation state in which the lock member (76) is disengaged, the handle (76b) is in a posture along the front surface of the pulling device (61), so that it is difficult to hinder the cereal conveyance and the cutting operation is smooth. Can be done.

The side view of a combine. The top view of a combine. The front view of a combine. The side view which abbreviate | omitted one part of the cutting conveyance part. The side view and top view of the upper part of a pulling apparatus. The side view and top view of the upper part of a pulling apparatus. The side view and top view of the upper part of a pulling apparatus. The perspective view of the upper part of a raising apparatus, and a top view. The side view which abbreviate | omitted one part of the cutting conveyance part. The side view and front view of the upper part of a pulling apparatus. The side view of a cutting conveyance part.

An embodiment of the present invention will be described with reference to the drawings.
1 to 3 show a combine equipped with the present invention. The traveling vehicle body 1 includes crawler traveling devices 2 and 2, and a threshing unit 3 is mounted on the left side of the rear portion. A Glen tank 4 is mounted on the right side, a control unit 5 is provided on the front side of the Glen tank 4, and a cutting and conveying unit 6 is provided in front of the control unit 5 and the threshing unit 3 so as to be movable up and down.

  The threshing unit 3 is provided with a feed chain 10 for conveying cereals on the left side, and although not shown inside, the upper handling chamber portion in which a handling cylinder, a dust removal processing cylinder, and a second processing cylinder are installed. And a lower sorting chamber equipped with a swing sorting shelf, a red box, a first receptacle, and a second receptacle. The end side of the feed chain 10 faces the start side of a waste transport chain (not shown), the waste that has been threshed by the waste transport chain is transported to the waste cutter 21, and the waste is cut to the field. It is trying to release.

  The Glen tank 4 is composed of an upper tank made of synthetic resin and a lower receiving plate made of iron plate, and has a lower spiral for discharging stored grains to the outside through the discharge auger 22 and discharging it outside the apparatus. I am doing so.

Next, the cutting and conveying unit 6 will be described with reference to FIGS. 4 and 5.
On the front side of the threshing portion 3, the upper base portion of the cutting suspension base 32 provided on the traveling vehicle body 1 supports the upper base portion of the rear cutting frame 33 so as to be rotatable up and down around the horizontal cutting input shaft 33a. The left and right center portions of the lower transmission case 34 are attached to the front end portion of the side cutting frame 33.

  The rear cutting frame 33 is provided with a single-acting lifting cylinder (not shown) and a balance spring (not shown) between the front end side and the traveling vehicle body 1, and is urged upward by the balance spring, and is moved up and down by the lifting cylinder. It is set as the structure rotated.

  A plurality of weed pipes 35,... Extend forward from the lower transmission case 34, and weed bodies 35a,. The front side part of the scraping and conveying device 36 is provided at the middle part in the front-rear direction of the weed pipes 35,... And the left and right side parts of the cutting blade device 37 are supported at the middle part in the front-rear direction of the weed pipes 35,. Yes.

  In addition, a right pulling transmission cylinder body 43 that houses a right pulling transmission shaft 42 is erected from the right end portion of the lower transmission case 34, and an upper pulling transmission shaft 45 extending in the left-right direction between the upper end parts of the right pulling transmission cylinder body 43. Is installed, and power is transmitted from the right pulling transmission shaft 42 to the upper pulling transmission shaft 45.

  Further, the pulling input transmission shafts 51,... Housed in the plurality of pulling transmission cylinders 52,... Are branched downwardly from the upper pulling transmission shaft 45 of the upper pulling transmission cylinder 46, and the pulling input transmission shafts 51,. Power is transmitted to the devices 61.

  The pulling device 61,... Has a drive sprocket 61c integral with the input shaft 61b mounted on the upper end of the pulling case 61a, and a driven roller 61d rotatably mounted on the lower end of the pulling case 61a. A pulling chain 61f that pivotally supports a large number of pulling lugs 61e,... Is wound around a driven roller 61d and a tension sprocket (not shown).

  .. And the input shafts 62b on the pulling case 61a,... Side are inserted in the axial direction with respect to the front end portions of the pulling input transmission cylinders 52,. Yes. Further, the lower portions of the pulling devices 61,... Are detachably attached to the front portions of the weed pipes 35,.

  Further, a slide support frame 65 is supported above the upper pulling transmission cylinder 46 so as to extend in the left-right direction, and the rear upper frame 33b extends forward from the rear side of the cutting and conveying unit 6 to the slide support frame. 65 is supported. Then, the slide support frame 65 supports the pulling case 61a of the pulling device 61 via the support means 66, and the pulling case 61a is moved to the rear side, or the pulling case 61a moved to the front side is slide supported. The frame 65 is configured to slide in the left-right direction so that the front center portion of the cutting and conveying unit 6 can be opened.

In the attached state of the pulling case 61a, the pulling case 61a and the pulling input transmission cylinder 52 are fixed with bolts or pins.
The support means 66 is supported by the slide support frame 65 and is movable along the left-right direction, and the base link 66b is supported by the movable body 66a so as to be rotatable about the vertical axis. The end link 66c is pivotally connected to the end of the end link 66c and the upper portion of the pulling case 61a by a vertical pin 66d.

  Then, when the base link 66b and the tip link 66c are rotated rearward along the left-right direction and placed in the storage state below the slide frame body 65, the pulling devices 61,. It is supported in a power transmission state close to the pulling transmission cylinder 46. Further, the base link 66b and the tip link 66c are rotated so as to protrude forward, and the pulling device 61 is moved to the front maintenance position to be in a power non-transmission state, and the pulling device 61 is moved along the slide support frame 65. It can be moved to the left and right sides, and the front center part of the cutting and conveying unit 6 can be opened for maintenance.

  A handle 79 is provided on the front end of the pulling case 61a of the pulling device 61 so that the pulling device 61 can be easily rotated forward. In providing the handle 79 so as to protrude to the front side, it is desirable to provide an auxiliary pulling device on the side of the pulling device 61, and to provide it at a position where it does not interfere.

  The upper pulling transmission cylinder 46 and the slide support frame 65 at the upper part of the cutting and conveying unit 6 are covered with a cover 78 wide in the left-right direction on the front side and the upper side. The cover 78 is configured in an inverted U shape when viewed from the side, and a rear lower end portion thereof is supported so as to be rotatable around a horizontal axis 78a. Thus, during the cutting operation, the slide support frame 65 is closed and rotated downward to prevent the water and dust from adhering to the slide support frame 65. Further, during the maintenance work, the cover 78 is opened and rotated upward so that the pulling device 61 can be moved forward.

Further, the support means 66 may be configured as shown in FIG.
That is, it is composed of a single link 66e, and the pulling device 61 is slidable left and right and moved back and forth (A in FIG. 6), or a plurality of links 66f and 66g are attached to the plurality of moving bodies 66a and 66a. The pulling device 61 may be moved left and right and moved back and forth by connecting and sliding the links 66f and 66g left and right (B in FIG. 6).

  Further, in each embodiment of the support means 66 described above, as shown in FIG. 7, the links 66h and 66i of the support means 66 are divided into rear links 66ha and 66ia and front links 66hb and 66ib so that they can be expanded and contracted. Then, the pulling device 61 can be moved at an arbitrary position in the front-rear direction, and maintenance work is facilitated.

  Further, the upper portions of the pulling cases 61a and 61a of the pulling devices 61 and 61 adjacent to each other in the central part are connected to each other, and a plurality of pulling devices 61 and 61 are supported by the support means 66, so If the devices 61 and 61 are collectively moved by the slide support frame 65 in the left-right direction, the maintenance space can be quickly formed.

Next, FIG. 8 will be described. (A), (B) is the principal part perspective view and top view of the raising apparatus 61, respectively.
A moving body 66a supported by a slide support frame 65 and movable in the left-right direction; a base link 66b that supports the moving means 66a so as to be rotatable about a vertical axis; It is comprised with the front end link 66c. Then, the lock plate 72 is attached to the left and right outer portions of the movable body 66a, and the lock plate 72 is provided on the left and right inner portions of the distal end link 66c. The left and right movement positions of the devices 61 and 61 are restricted.

  According to the above configuration, the supporting means 66 and the pulling device 61 are moved forward while the circumferential portions 66ba and 66ca formed on the ends of the base link 66b and the tip link 66c are brought into sliding contact with the lock plate 72, respectively. Can be held at any front and rear position. Further, when the flat portions 66bb and 66cb of the base link 66b and the tip link 66c are moved to a state where they abut against the lock plates 72 and 72, the moving position of the pulling device 61 is restricted, and the pulling device 61 is stably moved. Can do.

Further, the lock plate 72 can be combined with the embodiment of FIG.
Next, FIG. 9 will be described. In the lower rear side of the pulling devices 61,..., A pulling stand 74 that is rotatable around a horizontal axis 74a, or a pulling stand 74 that can be expanded and contracted is provided. Thus, the maintenance operation of the cutting and conveying unit 6 can be performed safely while maintaining the lower side of the pulling device 61 in contact with the ground or the front surface of the other pulling device 61 at the maintenance position moved to the front of the pulling devices 61 and 61. can do. In the working state, the tip end side of the pulling stand 74 is rotated upward and stored in the back side of the pulling device 61, so that the cereal conveyance is not hindered.

  Further, as shown in FIG. 10, a locking member 76 integral with the handle 76b is provided on the side of the drive sprocket 61c integral with the input shaft 61b above the pulling device 61 so as to be rotatable around the rotational shaft 76a. The handle 76b is erected in front of the pulling device 61, and the lock member 76 is engaged with the drive claw portion of the drive sprocket 61c to lock the handle 76b (B in FIG. 15), and the handle 76b is placed on the front surface of the pulling device 61. As a posture to be along, the lock member 76 is detached from the drive claw portion of the drive sprocket 61c so as to be in a rotatable state (A in FIG. 15). Thus, by preventing the drive sprocket 61c from rotating during the maintenance of the pulling device 61, the pulling lugs 61e,... Are prevented from shifting, and the engagement between the pulling transmission shaft 51 and the driving sprocket 61c of the pulling device 61 is prevented. Joining / leaving can be facilitated.

Next, the cereal conveyance structure of the cutting and conveying unit 6 will be described with reference to FIG.
From the front side to the rear side, the cutting and transporting unit 6 includes a weeding body 35a, a grain raising device 61, a scraping and conveying apparatus 36, a cutting blade apparatus 37, a grain collecting and conveying apparatus 38, a tip conveying apparatus 39a, and a root conveying apparatus 39b. The cereal conveyance apparatus 39 which consists of this is provided, and the terminal side of the cereal conveyance apparatus 39 is connected to the start end side of the feed chain 10 of the threshing part 3.

  In addition, the tip conveying device 39a of the grain haul conveying device 39 has a single structure located at the upper rear side, but the root conveying device 39b is divided into a front root conveying device 39ba and a rear root conveying device 39bb. Yes. And, the front side portion of the front base transport device 39ba is pivotally supported and the rear side portion is configured to be adjustable up and down, and the tip transport device 39a and the rear base transport device 39bb are supported on the frame portion 39c, and this frame With the rear lower part of the portion 39c as a fulcrum, the rear base transport device 39bb and the front side portion of the tip transport device 39a are configured to be vertically adjustable.

  In addition, the rear side portion of the front base transport device 39ba is connected to the front side portion of the rear base transport device 39bb so as to take over and transfer the cereal, and the rear side portion with the front side portion of the front base transport device 39ba as a fulcrum. Can be adjusted up and down. The grain feeder 39 is rotated and adjusted to adjust the tip length inserted into the threshing unit 3 by a handling depth sensor (not shown) provided near the front end of the threshing unit 3.

  Then, in configuring the front-side base transport device 39ba and the rear-side base transport device 39bb to be vertically adjustable, the vertical rotation adjustment range of the front-side base transport device 39ba is enlarged, and the vertical rotation adjustment range of the rear-side base transport device 39bb is increased. Is made smaller.

  According to the above configuration, the handling depth is adjusted while vertically adjusting the front side root transport device 39ba and the rear side root transport device 39bb. However, the vertical rotation adjustment range of the front side root transport device 39ba is increased, and the rear side root transport is performed. Since the vertical rotation adjustment range of the device 39bb is reduced, the rotation adjustment angle between the rear base conveyance device 39bb and the feed chain 10 can be reduced, and the conveyed cereal can be stably transferred to the feed chain 10. be able to.

  Further, the rear base transporting device 39bb is disposed above the front base transporting device 39ba in a side view so that the starting end side of the rear base transporting device 39bb protrudes forward from the end side of the front base transporting device 39ba. Even if the handling depth is adjusted, it is possible to prevent breakage of the transported culm from the front side root transfer device 39ba to the rear side root transfer device 39bb so that it can be smoothly transferred.

  In addition, a culm length detection sensor 40 is provided at the rear upper part of the pulling device 61 so as to detect a culm longer than a predetermined length. When the culm length detection sensor 40 does not detect the culm, the culm tip transporting device 39a of the culm transporting device 39 has a short culm tip according to the handling depth adjustment command from the control unit (not shown). It is configured so that it cannot be adjusted upward from the transfer position. Further, when the culm length detection sensor 40 detects a long culm, the spear transporting device 39a of the culm transporting device 39 is in the long spear transporting position according to the handling depth adjustment command from the control unit. It can be adjusted upwards.

  In the cutting operation near the end of the cutting operation, the cutting position of the culm is not stable, and the cereal conveyance state at the entrance of the handling chamber of the threshing unit 3 is detected by a processing depth sensor (not shown). When the handling depth of the straw transporting device 39 is adjusted, the tip transporting device 39a may be adjusted to a shallow handling depth so as to correspond to a long grain straw. The takeover to the chain 10 may be disturbed.

  However, according to the above configuration, in the state where the culm length detection sensor 40 detects a short culm, the tip transport device 39a of the culm transport device 39 is short in response to a handling depth adjustment command from the control unit. Since it cannot be adjusted upward from the spear tip transport position, the culm transport device 39 can maintain the short culm transporting state, and the sorghum can be smoothly transferred from the culm transport device 39 to the feed chain 10.

  Further, a potentiometer (not shown) is provided in the rear base transport device 39bb and the front base transport device 39ba to detect the adjustment position, and the front base transport is performed when the front base transport device 39ba and the rear base transport device 39bb are relatedly adjusted. The device 39ba and the rear base transporting device 39bb are handled so as to be parallel to each other when viewed from the side, and the depth is adjusted. And, only when the tip transport device 39a is adjusted to the uppermost position, the front base transport device 39ba is adjusted to be steeper upward than the rear base transport device 39bb to increase the handling depth. Also good.

  According to the said structure, the pulling-out of a corn straw can be prevented and it can convey smoothly at the time of the hand over conveyance of a grain candy.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 6 Cutting cutting conveyance part 45 Upper pulling transmission shaft 46 Upper pulling transmission cylinder 51 Pulling input transmission shaft 61 Pulling device 61a Pulling case 61c Drive sprocket 65 Slide support frame 66 Support means 66a Moving body 66b Link 76 Lock member 76b Handle

Claims (4)

  An upper pulling transmission cylinder (46) that houses the upper pulling transmission shaft (45) is installed in the left-right direction, and a plurality of pulling input transmission shafts (51) driven from the upper pulling transmission shaft (45) are provided, A drive sprocket that is configured to drive a plurality of pulling devices (61) provided on the front side of the cutting and conveying section (6) from the pulling input transmission shaft (51) and that is bearing on the pulling case (61a) side of the pulling device (61). (61c) is configured such that the power can be cut off and connected by moving in the front-rear direction with respect to the pulling input transmission shaft (51). A slide support frame (46) is provided below the upper pulling transmission cylinder (46). 65) is provided along the left-right direction, and the movable body (66a) is supported on the slide support frame (65) so as to be movable in the left-right direction, and a link (66b) connecting one end to the movable body (66a). ) With supporting means (66) The upper portion of the pulling case (61a) is pivotally supported on the other end of the link (66b), and the link (66b) is rotated rearward so that the pulling device (61) is moved to the slide support frame ( 65), the pulling device (61) moves to the cutting work position, the pulling input transmission shaft (51) and the drive sprocket (61c) are connected to enter a power transmission state, while the link (66b) When the pulling device (61) is moved forward from the slide support frame (65) by rotating to the front side, the pulling device (61) moves to the maintenance position, and the pulling input transmission shaft (51) and the drive sprocket (61c) ) And the non-power transmission state, and the pulling device (61) is configured to be movable to the left and right along the slide support frame (65).   The combine harvesting and conveying section according to claim 1, wherein the link (66b) of the support means (66) is configured to be extendable.   3. The combine cutting and conveying section according to claim 1 or 2, wherein a plurality of pulling devices (61) are connected and supported by a link (66b) of a supporting means (66).   The drive sprocket (61c) of the pulling device (61) is provided with a lock member (76) that can be freely engaged and disengaged, and a handle (76b) integral with the lock member (76) is projected from the front surface of the pulling device (61). Then, the locking member (76) is engaged with the driving sprocket (61c), and the handle (76b) is switched to a posture along the front surface of the pulling device (61) to thereby move the locking member (76) to the driving sprocket (61c). 4. The combine cutting and conveying section according to claim 1, 2 or 3, wherein the drive sprocket (61c) can be switched to a state in which the drive sprocket (61c) can be rotated.

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