JP2520499Y2 - Stock gathering device for binding machine for combine harvesters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION Field of the Invention The present invention relates to a stock tying device of a combine bundling machine.

2. Description of the Related Art Many combine harvesters are equipped with a cutter or a knotter (bundling machine) at the rear of the machine in order to chop threshed culms and discharge them to a field, or tie them together in predetermined bundles and discharge them to the field. The combine bundling machine has an endless belt that is positioned on the feed passage side of the waste culm fed from the threshing unit side of the machine and on the tip side from the transport start end to the transport end on the transport working surface side. It is already known that a stock rooting device consisting of is provided, and the stock root edge is aligned while bringing the culm to the tip side by the stock rooting device (Japanese Utility Model Publication No. 2-20926,
JP-A-64-43127).

However, since the above-mentioned conventional stock gathering device uses an endless belt with protrusions, the drainage of culms is poor, and culms and straw waste are wound around the protrusions and belts, There is a hateful feeling
Once the culms etc. are wrapped around, there is a problem that the stock pulling action is hindered.

Means for Solving the Problems Therefore, the present invention is an endless chain in which the conveying action side is sequentially located on the tip side from the starting end side to the terminating side of the stocker side of the culm conveying passage of the binding machine attached to the combine. Is rotatably provided, and a large number of rod-shaped tines are hung on the endless chain at a predetermined interval, and a guide plate is horizontally installed on the transport operation side of the tine so as to closely face the vicinity of the hanging lower end of the tine. The above-mentioned problems are solved by aligning the tine facing edges of the plate with the movement path of the tine, and at the same time, preventing the tine from expanding toward the culm transport passage side, the culms and straw debris are removed from the tine. It is intended to prevent the back side from being caught or jammed.

Action The culms sent from the threshing section side of the combine to the culm-carrying passage of the binding machine are pushed by the rod-shaped tines whose root ends move with the movement of the chain, and are gradually moved to the tip side and aligned. However, on the transport operation side of the tine, a guide plate is laterally laid in close proximity to the vicinity of the hanging lower end of the tine, and moreover, the tine facing edge of the guide plate is arranged along the movement path of the tine, so that the tine is drained. It is prevented from expanding to the side of the transport passage and moves along the guide plate while maintaining a proper posture.

Embodiment The configuration of the present invention will be described with reference to an embodiment shown in the drawings. At the rear of the combine (this machine), a cutter 2 having a cutter frame 2a is attached to the end side of the straw chain 1a of the threshing device 1, and the binding machine 3 is attached to the rear side of the cutter 2 via a stay 3a and a connecting tool 3b. The threshing culm is supplied to either the cutter 2 or the binding machine 3 by the raising / lowering operation of the switching plate 5 which is detachably connected and is provided on the upper surface of the cutter frame 4 so as to be chopped or bound. It is configured to process.

Reference numeral 6 denotes left and right knotter side plates, which are integrally connected by knotter frames 7, 8 and 9. The upper and lower intermediate portions of the binding machine 3 are guide plates.
A knotting case having a culm conveying passage 11 having a needle 10, a drive mechanism such as a needle 12, a packer 13 and a door 14 and a one-rotation clutch mechanism 15 below the culm conveying passage 11.
A knotted portion having 16 disposed therein, and having a knotter building 17, a discharging rod R, a holder (not shown) and the like above the drainage transfer passage 11.
18 are arranged. And from the knotter case 16 to the knot
The power transmission path to 18 is provided so as to bypass the stocker side of the culm transport passage 11, and the tip side of the culm passage 11 is open. That is, the pipe-shaped upper bracket 20 which is located above the stock root side with the culm passage 11 interposed therein and has the binding shaft 19 incorporated therein, the needle crank shaft 21 which is located below the stock root side is incorporated and the base end is provided. Fixed pipe-shaped lower brackets 22 are laterally arranged on one side of the knotter case 16, respectively, and the tip ends of both brackets 20 and 22 are formed of square pipes, and an intermediate transmission portion 23 that links a needle crank shaft 21 and a binding shaft 19 to the outside. Are integrally connected via a vertical frame 24 provided integrally with each other, thereby forming a U-shaped support frame 25 having an open tip side.
The vertical frame 24 is made of a solid square pipe, and the upper and lower brackets 20 and 22 at the front end side penetrate the vertical frame 24 and are fixed in a two-point supporting manner. Extends outward from 24, and the chain wheel 19
An intermediate transmission unit 23 including a, 21a and a chain 23a is provided. 23b is a chain cover.

On the other hand, the upper bracket 20 is provided with a plurality of mounting holes 26a and 27a along the culm direction, respectively.
A straining device A is provided on the side of the strainer so that the position of the stem can be freely changed and fixed. The upper bracket 20 is located closer to the tip than the straining device A and has a pair of left and right scraping tines. Is fixed via a mounting seat 28, and supports the knot portion 18, and a cover 29 covering the upper portion of the knot portion 18 is attached. Further, a root aligning device C and a transporting device D for binding culm are sequentially arranged in front of the stock pulling device A in the culm conveying direction.

By the way, the stock gathering apparatus A is configured as follows. That is, a small bevel gear 31 fixed to a chain drive shaft 33 and a large bevel gear 31a fixed to an input shaft of a raking device to be described later are incorporated in one side upper surface of the upper cover 30 also serving as a frame in a meshing state, and Upper bevel gear case 32 integrally connected to 27
The drive chain wheel 34 on the protruding side of the chain drive shaft 33.
The arms 35 linked to the crank mechanism K of the root aligning device C are fixed to the upper projecting end side, respectively, and the driven chain wheel 37 is rotatably fitted in the elongated hole 36 provided on the other side of the upper cover 30. The bolt shaft 38 is inserted and tightened and fixed to the cover 30 with the nut 39.
The bolt shaft 38 is urged in the direction of tension of the endless chain 42 with the rod-shaped tine 41 by the compression ram 40, and is configured to cope with the elongation of the endless chain 42 over time within the range of the elongated hole 36. is there. The tine 41 is hung on the outer periphery of the chain 42 at a predetermined interval, and the tine 41 is, for example, a hollow rod-shaped body made of a synthetic resin and having a substantially semicircular outer shape on the conveying action side.
Highly strong, and a recess provided on the upper back of the tine 41
Notches 41b are provided on both left and right sides of 41a, and chain 42 is provided in recess 41a.
The projecting portion 42a is inserted and connected by the pin 43. On the inside of the upper cover 30 and on the conveyance operation side of the endless chain 42, a guide plate 45 along the movement locus of the chain 42 is erected upright via a mounting plate 44, and the rotation of the chain 42 causes the rear flat portion 41c of the tine 41 to move. The tine 41 is prevented from rotating (pivoting) or swinging about the axis so as to move along the guide plate 45. Then, the starting end side of the guide plate 45 is formed in an arc shape along the movement locus of the tine 41, and the arc-shaped portion is made into a movable body 45a which is rotatable in the expansion and contraction direction of the chain 42 by the hinge 46, and the movable body 45a is an arm. The movable body 45a is linked to the bolt shaft 38 via 47 and rotates in response to the movement adjustment of the driven chain 37, so that the gap between the tine 41 and the guide plate 45 is always kept at a constant small gap. There is. Also, there is a tine on the transport side of the stock arranging device A.
A guide plate 48 is provided in the vicinity of the hanging lower end of 41, and the tine facing edge 48a of the guide plate 48 has a shape along the movement locus of the tine 41,
The lower end of the tine 41 is restricted from expanding. A guide rod 49 for preventing wrapping is fixed to the guide plate 48 along the outer circumference of the movement path of the tines 41 on the terminal side in the culm transport direction, and an elastic plate 50 made of rubber or the like is fixed on the opposite side of the cutter. The free end side of the elastic plate 50 is sandwiched between the switching plate 5 and the guide plate 51 of the cutter 2 so that the drainage a is not caught at the connecting portion between the cutter 2 and the binding machine 3. In addition, the upper cover 30 has a connecting plate
Lower cover 53 is integrally connected via 52, and both covers 30, 5
The frame 54 of the stock arranging device A is formed of 3 and the frame 5
The free end side of 4 is placed in contact with the machine side (the free end side of the lower cover 53 is mounted on the knotter frame 8 and the cutter frame 2a in the embodiment), and the stockholders are aligned in a cantilevered state. Although it is the device A, the free end side of the frame 54 is the cutter frame.
It has a stable mounting structure supported by 2a and the like, and is designed so that the cutter frame 2a also serves as a guide and a support when the set position of the stock arranging apparatus A is changed.

Next, the scraping device B is configured as follows. That is, the large bevel gear 31a built in the upper bevel gear case 32.
An input shaft (hexagonal shaft) 60 with the is fixed penetrates the raking case 61 on one side, and the raking shaft 62 penetrates to the outside of the raking case 61, and is fixed to the protruding end of the raking shaft 62. The chain 64 is suspended between the wheel 63 and the chain wheel 63a fixed to the input shaft 60, and the power is configured to be transmitted to the raking shaft 62 at a reduced speed. It has become. Reference numeral 65 is a scraping tine, 65a is a chain, and 66 is a case connecting pipe.

Next, the root alignment device C is configured as follows. That is, triangular rocking plates 72 and 73 are pivotally attached to support shafts 70 and 71 provided in front and rear of the mounting bracket 27 so as to be horizontally rotatable, respectively, and the front rocking plate 7
The second corner 72a and the tip of the arm 35 fixed to the upward protruding end of the chain drive shaft 33 are formed by a rod 74, and the corner 72b of the swing plate 72 and the corner 73a of the rear swing plate 73 are formed by a rod 75. The arms 76, which are pivotally connected to each other and are pivotally connected to the corners 73b of the rear swing plate 73, are linked to each other by a plate 77 having the plate 77 orthogonally fixed to the arm 76 and a link 79 composed of a plate 78 pivotally connected to the plate 77. The swinging plate 72 is pivotally connected to the corner 72c of the swinging plate 72, and the root aligning plate P is fixed to the tip of the arm 76. Swing 72, 73 back and forth,
As a result, the root aligning plate P reciprocates in the culm direction of the culm a. Then, the root aligning device C has a mounting bracket 27
It is structured such that it is integrally connected to the stock yuan assembling apparatus A via.

In addition, the corner 72c of the front swing plate 72 and the corner 73b of the rear swing plate 73.
A virtual line l connecting the corners 72b of the front rocking plate 72 and the rear rocking plate 7
The line l ₁ connecting the three corners 73a is always set to be parallel, and the link 79 is for absorbing a design error and an assembly error, and has a highly reliable structure.

Next, the transport device D for the culm bundle is configured as follows. That is, a bracket 83 fixed to the base end side of a transport body 82 including an endless chain 80 with a projection 80a and a transport case 81 covering the chain 80, a fulcrum shaft 85 fixed to the bracket 83 on a mounting seat 84 fixed to the notter case 16 And the carrier 82
Is configured to be horizontally rotatable around the fulcrum shaft 85, and a rotation restricting body 87 provided with a pin 86 is fixed to one protruding end of the fulcrum shaft 85. On the other hand, a bracket 88 fixed to the knotter case 16 has a substantially L-shaped long hole 8 having an engaging portion 89a at one end.
9 and an arm 90 provided with a handle 90a are pivotally connected to each other by a support shaft 91, and a pulling ammunition is provided between a side of the arm 90 near the rotation base end and the knotter case 16.
The arm 90 is urged forward by stretching the
A pin 86 of the front rotation restricting body 87 is slidably fitted in the arm 90 and the rotation restricting body 87 to form a link mechanism c that is bendable in the front-rear direction. Then, when the carrier 82 is manually rotated to a position (storage posture) orthogonal to the traveling direction of the machine body, the pawl clutch 93 is disengaged and the power transmission to the bundle carrying device D is cut off. .

Now, the power transmission mechanism of the binding machine 3 will be described in detail. Power is transmitted from the machine (the cutter rotating shaft 2'in the embodiment) side to the chain transmission 100.
With this, the fixed shaft 103a, which is supported by three points of the knotter case 16, the lower bevel gear case 101, and the bearing portion 102, and which is a pipe shaft, and is slidable only in the axial center direction with respect to the fixed shaft 103a via the slide fitting portion S. A transmission system that transmits to the knotter input shaft 103 configured to be connected by the fitted movable shaft 103b and reaches the knot portion 18 via the needle crank shaft 21, the intermediate transmission portion 23 and the binding shaft 19 in the knotter case 16, and a bundle conveying device. While branching to the transmission system leading to D, the shaft is transmitted from the shaft end of the knotter input shaft 103 to the output shaft 106 by the engagement of bevel gears 104, 105 in the lower bevel gear case 101, and the output shaft 106 is slid to the slide portion S ₁
Is transmitted to the drive shaft 33 of the stock pulling device A through the expandable universal joint shaft 107, and is distributed from the drive shaft 33 to the crank mechanism K side and the scraping device C side of the root aligning device B as described above. The respective devices are adapted to operate in association with each other at a predetermined timing.

The knotter input shaft 103 is supported at three points of the knotter case 16, the lower bevel gear case 101, and the bearing portion 102 of the fixed shaft 103a. After the bevel gear case 101 is positioned and fixed, the bearing portion 102 is configured to move and adjust in the direction perpendicular to the axial direction within the range of the long hole d and set at an appropriate position. In the embodiment, the bearing 102
A centering type holder 102a is used as the above so that even if the knotter input shaft 103 is slightly inclined, it can be sufficiently dealt with.

By the way, the stock gathering apparatus A is configured to change the set position by moving in the culm direction according to the culm length (difference between short culm and long culm, etc.) as described above, and therefore the knotter input shaft 103 is described above. As described above, it is configured to be expandable and contractible, and the mounting position of the lower bevel gear case 101 is also variable. That is, first, the fixed shaft 103 constituting the notter input shaft 103
a movable shaft 103b is provided on the outer side of the notter case 16 near the drive portion, and the movable shaft 103b is inserted through the notter case 16 so as to be freely slidable in the axial direction.
The driving portion 103a is supported via a bearing portion 102 which is provided so as to be movable and fixed in a direction orthogonal to the axial direction on the driving portion side. In this embodiment, the slide fitting portion S is provided at a substantially middle portion in the longitudinal direction of the notter input shaft 103, and the bearing portion 102 of the fixed shaft 103a is provided.
Is configured to be movable in the front-rear direction within the range of the long hole d provided in the bearing portion 102. In addition, adjustment of the bearing part 102 in the vertical direction is performed by properly seating a seat (not shown) on the lower surface of the bearing part 102.
The fixed shaft 10
The bearing portion 3a can be moved and adjusted not only in the front-back direction but also in the vertical direction.

Next, the lower bevel gear case 101 is mounted on the knotter frame 7 with the mounting metal fitting 108 fixed to the case 101.
It is bolted to 09, and the mounting brackets 108 and 109 are provided with a plurality of mounting holes 108a and 109a, respectively, which extend along the culm direction.By changing the mounting holes 109, the set position of the lower bevel gear case 101 can be adjusted. Has become.

By the way, in this embodiment, as shown in FIG. 23, the mounting bracket 26 fixed to the upper bracket 20 corresponds to the hole interval of the mounting hole 27a provided in the stock moving device A side mounting bracket 27 in the culm direction. By appropriately selecting the mounting holes 26a arranged in five rows, the setting position of the strainer approaching device A can be switched in four stages at 1 pitch in the stem direction, while the mounting bracket 109 fixed to the notter frame 7 has The mounting holes 109a are arranged in four rows in the culm direction corresponding to the hole intervals of the mounting holes 108a provided on the case 101 side mounting bracket 108, and are set so as to have a moving width L (L> l). is there.

In the present embodiment, the adjustment of the set positions of the stock aligning device A and the lower bevel gear case 101 is performed stepwise by changing the mounting holes. For example, one mounting hole may be a long hole or the stock aligning device A may be changed. It is also possible to make stepless adjustment by configuring the support structure such as a slide type that can be slidably fixed. Further, the power transmission path to the lower bevel gear case 101 is not limited to that of this embodiment.

By the way, on the outer side of the tip end side of the knotter case 16, there is provided a basket 111 for storing the binding cord b held by the rubber band 111a in the rear space part of the knotter input transmission part 110, and the basket 111 is open at the rear. Forming and basket 1
The 11 component frames are configured to perform the functions of a protective cover and a safety cover that protect the knotter input transmission unit 110.
That is, the outer plate 112, the top plate 113, and the bottom plate 114 of the basket 111 fixed to the knotter frame 7 are extended to the vicinity of the cutter side plate 2b, and the extended chain and the basket front plate 115 allow the input chain wheel 116, the metal portion 102, and The knotter input transmission section 110 including the transmission chain 117 and the like is surrounded by three surfaces.
Incidentally, the basket top plate 113 has substantially the same height as the guide plate 10 of the culm-carrying passage 11 so as to perform the guiding action on the side of the culm tip.

In the above configuration, the culm a sent to the binding machine 3 side by the straw chain 1a on the machine side is aligned by the stock source aligning device A while being aligned in the tip direction, and the scraping device B is used. The roots are sequentially scraped backward through the culm-carrying passage 11, and further, while the roots are aligned by the rooting device C in a substantially single row, they are sent to a culm chamber 14a having a door 14 and bundled in a predetermined bundle. Then, it is discharged to the already-cut area of the field by the bundle conveying device D.

By the way, the culm a sent to the culm conveying passage 11 of the binding machine 3 is conveyed while being pushed toward the tip side by the rod-shaped tines 41 whose base ends move together with the movement of the endless chain 42. Although aligned in the process, a guide plate 48 is laterally laid on the carrying action side of the tine 41 in the vicinity of the lower end of the tine 41 so as to face the tine 41, and the tine facing edge of the guide plate 48 moves along the tine 41. Since the tine 41 hangs in a cantilever state on the endless chain 42, the guide plate 48 restricts the tine 41 from expanding toward the culm-carrying passage, because the tine 41 is located on the rear surface of the tine 41. The guide plate 45 standing up to the side moves together with the guide plate 48 while maintaining a proper posture, so that culm or straw debris is caught or clogged between the tine 41 and the guide plate 45. Is prevented in advance. Further, when the tine 41 spreads to the side of the culm-carrying passage during work, the culm and straw waste are entangled in the tine 41 and are easily wrapped,
Moreover, since the discharge of the culm is worse on the end of the conveyance, the culm can be easily carried around, but the expansion of the tines 41 is restricted so that there is no such inconvenience, and the stock pulling action is always performed well.

Effect of the Invention Since the present invention is configured as described above, it has a simple structure in which the tines hang down in an endless chain in a cantilevered manner, but the tines are expanded by the guide plate to the drainage transfer passage side. It is possible to regulate, so that it is possible to prevent culms and straw debris from being caught or jammed on the back side of the tine, and eliminate the culm and wrapping around the tines. Therefore, the stock pulling action is always performed well.

[Brief description of drawings]

FIG. 1 is a side view of the binding machine, FIG. 2 is a cross-sectional side view showing a transmission mechanism of the stock aligning device, and FIG. 3 is a side view of the stock aligning device.
FIG. 4 is a sectional plan view of a lower bevel gear case, FIG. 5 is a sectional plan view of an upper bevel gear case, FIG. 6 is a schematic view showing a transmission path of a binding machine, and FIG. 7 is an enlarged view showing a transmission path of a knotter case. 8 and 9 are rear views of the case, and FIGS.
11 is a perspective view of the binding machine, FIG. 12 is a rear view of the support frame of the binding machine, FIG. 13 is an exploded perspective view of the support frame and the knotter case, and FIG. 14 is an enlarged view of the connecting portion between the cutter and the binding machine. FIG. 15 is a perspective view, FIG. 15 is an exploded perspective view of a connecting portion between a cutter and a binding machine, FIG. 16 is an exploded perspective view of a stock cultivating device, FIG. 17 is a perspective view of a guide plate of the stock cultivating device, and FIG. Is a perspective view showing the structure of the tines, FIG. 19 is a plan view showing the mounting structure of the tines with respect to the chain, FIGS. 20 and 21 are plan views showing the relationship between the stock aligning device and the root aligning device, respectively. Figure is a schematic plan view of the crank mechanism. Figure 23 is an exploded perspective view of the set position adjusting unit of the stock arranging device. Figure 24 is a perspective view showing the relationship between the threshing unit and the binding machine. Fig. 26 is a rear view showing the moving relationship between the device and the lower bevel gear case, Fig. 26 is an exploded perspective view of the root aligning device, and Fig. 27 is a disconnection of the scraping device. Plan view, FIG. 28 is a side view of the sweeping case, FIG. 29 is a partially cutaway plan view of the sweeping case, FIG. 30 is a side view showing the relationship between the sweeping case and the input shaft,
FIG. 31 is a side view showing the internal structure of the scraping case, FIG. 32 is an exploded perspective view of the knotter case and the bundle conveying device, FIG. 33 is a plan view of the bundle conveying device, and FIG. Side view,
FIG. 35 is a partial front view of the bundle conveying device mounting portion, FIG. 36 is a sectional side view of the conveyer, and FIG. 37 is a plan view of the bundle conveying device rotating portion.
38 is a side view showing the relationship between the arm and the rotation restricting body, FIG. 39 is a side view showing an attachment structure of the bundle transport device to the notter case, and FIGS. 40 and 41 are the storage posture and the working posture of the bundle transport device. 42 and FIG. 43 are perspective views of a tying string ball storage basket portion, respectively.
FIG. 44 is a perspective view showing the posture switching operation state of the bundle transport device, and FIG.
FIG. 45 is a sectional plan view showing the relationship between the basket portion and the notter input transmission portion, FIG. 46 is a side view showing the relationship between the basket portion and the notter input transmission portion, and FIG. 47 is an exploded perspective view of the basket. DESCRIPTION OF SYMBOLS 1 ... Combine threshing apparatus, 2 ... Cutter, 3 ... Bundling machine, 11 ... Conveying passage of culm, 41 ... Rod tine, 42 ...
Endless chain, 48 ... Guide plate, a.

 ─────────────────────────────────────────────────── --Continued from the front page Examiner Eiichi Yoshida (56) References JP-A-64-43127 (JP, A) Actually opened 62-178850 (JP, U) Actually opened 59-73151 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. An endless chain in which a conveyor working side is sequentially located on the tip side from the starting end side to the terminating side is rotatably provided on the stocker side of a culm conveying passage of a binding machine attached to a combine, A large number of rod-shaped tines are hung at a predetermined interval on the endless chain, and a guide plate is horizontally installed near the hanging lower end of the tine on the conveying action side of the tine, and the tine facing edge of the tine is tine. A stock gathering device for a binding machine for combine harvesters, which is characterized by following the movement locus of.