JPH0144031Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, the drive shaft of the vertical grain culm combing body of a harvester had a connection part inside the anti-wrapping cylinder, and the shaft hole of the spline joint and the end of the drive shaft were not visible. The task of assembling the drive shaft was extremely difficult.

The present invention aims to provide a transmission device for a grain culm combing body in a harvester, which allows the work of assembling the drive shaft to be carried out extremely easily, and which can reliably hold the anti-wrapping tube in a predetermined position. A plurality of vertically hanging grain culm combing bodies are arranged at intervals in the front part of the aircraft, and separate drive shafts are installed between the upper parts of these grain culm combing bodies, and they are connected by spline joints. In a harvesting machine in which each drive shaft is covered with an anti-wrapping tube extending between adjacent grain culm combing bodies, the anti-wrapping tube is provided in the shaft passage part of the case of the grain culm combing body. A hole into which the winding prevention cylinder can be fitted is bored, and a part of the receiving cylinder into which the end of the winding prevention cylinder fits is fixed to the outside around this hole, and a gap is left between the other part and the case. Insert into this gap a shutter having a notch in which the drive shaft connected by the spline joint fits but does not fit the anti-wrapping tube, and screw this shutter onto the outer surface of the case. This feature is characterized in that the end portion of the anti-wrapping tube is stopped by a screw.

The embodiments shown in the drawings will be explained below.
Reference numeral 1 denotes two pairs of horizontally hanging type grain culm pulling bodies 1 provided at the front part of the combine, and a pair of grain culm raising bodies 1 on both sides and a front part between the central grain culm raising bodies 1, 1 are provided. This is a vertical grain culm combing device 2 that scoops and separates grain culms.
... is arranged, and the grain culm carding body 2 has a chain 4 stretched between the upper drive sprocket 3 and the lower floating sprocket, and a large number of carding claws 5 ... attached to the chain 4 are guides. The rail protrudes out of the case 6 from the lower end running part to the upper front surface to scoop up and divide the grain culms.

Further, a bearing 8 attached with a bolt 9 to the upper right side (as viewed from the front) of the case 6 of the grain culm combing body 2 in the center supports the vertical shaft 7 through the bearing. A drive sprocket 3 is spline-fitted into the case 6, a hole 11 is bored on the left side of the case 6 through which the anti-wrapping tube 10 is inserted, and a short receiving tube 12 is welded to the outside of the hole 11.
The lower part of the flange of the receiver cylinder 12 forms a gap between it and the case 6 into which the shutter 13 is inserted.

Further, on the side facing the grain culm lifting passage of the case 6a of the grain culm combing body 2 on the left side when viewed from the front, a joint shaft similar to the joint shaft 7 to which the drive sprocket 3 is spline-fitted is equipped with a bearing. 8a as shown on the left side of FIG. Similar to the case 6 in the center, a hole 11b and a receiving tube 12b are provided on the left side of the case 6, as shown on the right side of FIG.

Then, when assembling the drive shafts 15, 15a,
For example, when assembling the right drive shaft 15, the end of the drive shaft 15 is connected to the joint shaft 7b of the right grain culm carding body 2 via a spline joint 16b as shown on the right side of FIG. Insert the prevention tube 10 into the hole 1
1b until it contacts the drive sprocket 3, the anti-winding tube 10 is retracted by l, and the spline joint 16 spline-fitted to the other end of the drive shaft 15 is removed from the anti-winding tube 10 by the same length l. stand out.

In this state, hold the grain culm upper body 2 in the center and connect the joint shaft 7.
is fitted into the spline joint 16, and then the anti-winding cylinder 10 is pulled out to the position shown in FIG. 3a and the left end is fitted into the bearing 8.
The right end of the receiver 12b is pulled out from the case 6b.
Therefore, when the shutter 13 is inserted from below the receiving tube 12b and tightened with the bolt 17, the end of the anti-wrapping tube 10 is supported by the shutter 13.
It is received around the horseshoe-shaped notch of the

Also, when assembling the left drive shaft 15a, the anti-wrapping cylinder 10 is pushed into the central case 6 as shown by the dotted line in FIG. Cylinder 1
0', hold the grain culm carding upper body 2 on the left side, then fit the protruding joint shaft into the protruding spline joint, return the anti-wrapping cylinder 10',
When the shutter 13 is inserted and screwed, the drive shaft 1
5, 15a and the anti-wrapping tubes 10, 10' are now assembled.

Even when there are four or more grain culm combing bodies 2, the drive shaft can be assembled in the same manner as in the above embodiment.

Furthermore, a weed splitting body 19 is attached to the front part of the pretreatment frame rod 20 that supports the lower part of the grain culm pulling body 1, and the front end of this weed splitting body 19 has a combing claw as shown in FIG. Since the tip of the comb 5 is located vertically below the frontmost position b of the rotating locus, the combing claw 5 scoops up the grain culm before the cutting body 19 pushes it, improving the picking up effect of the combing claw 5. can do.

Next, another example of assembling the drive shaft will be disclosed with reference to FIG. 5 and FIG. 6. FIG. ' is larger in diameter than the spline joint 16, but smaller in diameter than the winding prevention cylinder 10', and is not provided with a shutter.

Since a compression spring 18 is interposed between the stepped portion a of the drive shaft 15' and the spline joint 16', the spline joint 16' is pushed out by the compression spring 18 as shown in FIG. Since the anti-winding cylinder 10' projects outward from the winding prevention tube 10', the joint shaft 7' can be easily fitted into the spline joint 16', and after connection, the compression spring 18 is compressed as shown in FIG. Ru.

7 and 8 show a part of the grain culm raking device provided at the rear of the grain culm pulling body 1 and a part of the stock lateral conveyance chain 20 for laterally transporting the harvested grain culm, and the raking wheel 21 ... is pivotally supported on the upper part of the cutting blade 34, and a stock raking chain 22 is placed close to the upper part of the left and right raking wheels 21, 21, and a lug is attached above each raking wheel 21... The raking belts 23... are stretched, and the upper surface of each raking belt 23...
A guide rod 25 extending from the left side (as viewed from the front) of a frame plate 28 provided at the lower part of the central guide cover 24 is connected to the stock raking chain 22 and the stock lateral conveyance chain on that side. The guide rods 26 and 27, which extend rearward along the conveying surface of the frame plate 20 and have their bases fixed to the left side of the frame plate 28, extend along the conveying surface of the stock scraping chain 22 on that side.

Further, among the guide rods, 25 and 27 extend to a confluence 29 formed by the rear part of the stock side horizontal conveyance chain 20 and the stock stock scraping chain 22 on the right side,
A merging guide plate 30 consisting of two upper and lower triangular plates 30a and 30b is provided in the merging section 29, protruding from between the guide rods 25 and 27 and facing the scraping chain 22 and the horizontal conveyance chain 20. Then, this merging guide plate 30 is attached to a support rod 32 supported by a support metal 31 on the frame plate 28 so as to be movable back and forth, and the support rod 3
2 is urged rearward by a spring 33, and a stopper 35 welded to the front end of the support rod 32 is joined to the upper surface of the frame plate 28 to prevent rotation of the support rod 32.

Therefore, the above-mentioned grain culm combing body 2 is used to comb and divide the culm,
The grain culm raised by the grain culm pulling body 1 is moved to the raking wheel 21...
..., stock chain 22, 22 and raking belt 2
The grain culms that were harvested by the cutting blade 34 while being raked by 3... and raked from the raking path on the left side were fed laterally from the stock horizontal conveyance chain 20 and raked from the raking path on the left side. The grain culm joins the transversely fed grain culm at the merging portion 29.

At that time, if the rear ends of the guide rods 25 and 27 are simply wrapped in a plan view, the merging grain culms will be pushed by the other guide rod 25 or 27 and tilted, resulting in disordered posture. If the rear ends of the guide rods 25, 27 are kept in the middle of the guide surface of the merging guide plate 30 as shown in FIG. 7, the culm posture will not be disturbed as shown in FIG. Since the guide plate 30 moves forward and backward according to the amount of culms, it is possible to prevent culms from leaking and to merge them in an orderly manner with appropriate clamping pressure.

The merged grain culm is supplied to the rear threshing device by the grain culm conveying device and is threshed.

As mentioned above, the present invention includes a plurality of vertically hanging grain culm combing bodies arranged at intervals in the front part of the aircraft, separate drive shafts installed between the upper parts of these grain culm combing bodies, and In a harvester in which these are connected in series through a spline joint and each drive shaft is covered with a winding prevention tube extending between adjacent grain culm carding bodies 2, the shaft of the case 6 of the grain culm carding body 2 is passed through. Anti-wrapping cylinder 1
A hole 11 into which the holder 0' can be inserted is bored, and a part of the receiving tube 12 into which the end of the winding prevention tube fits is fixed to the outside around this hole, and the other part is fixed to the case 6. A shutter 13 having a notch in which the drive shaft 15 connected by the spline joint fits but does not fit the winding prevention cylinder 10' is inserted into this gap, leaving a gap between the two. Since the end of the winding prevention cylinder is fixed by screwing onto the outer surface of the case 6, when connecting the drive shafts, the winding prevention cylinder is brought together and the connection part of one drive shaft is wound. It can be made to protrude from the sticking prevention cylinder, and the other drive shaft can be easily connected while looking at the connection part.

Moreover, by returning the rolled-up prevention tube after connection and stopping it with a shutter, the wrapping-prevention tube can be reliably held at a predetermined position.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a front view of the front part of the combine, Figure 2 is a side view of the same, Figure 3 a is a sectional view of the upper part of the central grain culm combing body, b is a perspective view of the shutter, and Figure 4 is the right side. A sectional view with a part of the support part of the drive shaft omitted, No. 5
The figure is a sectional view of the central grain culm combing body in another example of the drive shaft connection part, FIG. Figure 8 is a plan view of the loading device, and Figure 9 is a sectional view of the grain culm confluence.
The figure is a cross-sectional view of a conventional grain culm confluence section. 2... Grain culm upper body, 3... Sprocket, 7...
... joint shaft, 6 ... case, 10 ... winding prevention cylinder,
15, 15a... Drive shaft, 16... Spline joint.

Claims (1)

[Scope of utility model registration request] A plurality of vertically hung grain culm combing bodies 2 are arranged at intervals in the front part of the machine, and separate drive shafts 15, 15a are installed between the upper parts of these grain culm combing bodies 2, and they are Each drive shaft 15, 15a is connected to the adjacent grain culm combing body 2 through a spline joint 16.
In a harvester covered with anti-wrapping tubes 10, 10' extending between the grain culm combing body 2, a hole 1 into which the anti-wrapping tube 10' can be inserted into the shaft passage portion of the case 6 of the grain culm combing body 2;
1 is bored, and a part of the receiving tube 12 into which the end of the winding prevention tube fits is fixed to the outside around this hole, while leaving a gap between the other part and the case 6, A shutter 13 having a notch in which the drive shaft 15 connected by the spline joint fits but does not fit the winding prevention tube 10' is inserted into this gap, and this shutter 13 is attached to the outer surface of the case 6. 1. A transmission device for a grain culm combing body in a harvester, characterized in that the end of the anti-wrapping tube is stopped by screwing.