JPS5929463Y2 - Combine grain culm inheritance device - Google Patents

Description

[Detailed description of the invention] This invention is equipped with a reaping device in front of the thresher, and feeds the reaped husks from the reaping device's reaped husks conveying chain to the feed chain of the threshing machine, allowing continuous reaping and threshing. Concerning the combine that performs the work.

Conventionally, a supporting rod is provided in the upper part of the food chain, and the base end of the feed chain guide rod is supported at the front end of the supporting rod.
There was a technique (for example, Japanese Utility Model Publication No. 48-3776) in which the culm to be fed to the starting end of the feed chain was held between the guide rods, but since the guide rods were extended along the feed chain run, the feed When adjusting the cutting height by moving the end of the conveyor chain that feeds the cut culm to the chain toward and away from the start end of the feed chain, the tip position of the guide rod changes relative to the end of the conveyor chain, and the culm is transferred. When the guide rod was connected to the conveyor chain to solve the problem, the overall shape of the guide rod was deformed due to the change in the chain, and the supporting action between the base end of the guide rod and the feed chain was improved. It was difficult to hold the shell in place, and there was a risk of disturbing the transport posture of the culm.

The present invention solves the above-mentioned conventional drawbacks by installing a supporting rod along the upper part of the feed chain, using the upper side of the feed chain as a conveying surface, and conveying the culm in a pinched manner.
A cutting husk conveying chain is provided, the terminal end of which can be freely moved toward and away from the starting end of the feed chain, and a feed chain guide rod is provided that is supported by the front end of the supporting rod and extends along the upper conveying surface of the feed chain. In the combine harvester, the tip end of the feed chain guide rod is curved along the locus of the end of the conveyor chain that is displaced by cutting height adjustment, and the tip of the feed chain guide rod is curved so that it can cross the end of the chain guide rod on the conveyor chain side. The feed chain guide rod is always supported in the same receiving shape with respect to the end of the conveyor chain that is displaced when adjusting the cutting height, and there is no space between the feed chain and this guide rod regardless of the culm length. By being able to reliably take in the culm and intersecting the feed chain guide rod and the chain guide rod of the conveyance chain,
The culm inheritance of each of the guide rods can be obtained well without special support for the tips of the feed chain guide rods, and compared to conventional methods, disturbances in the culm conveying posture and unreasonable deformation of the feed chain guide rods are prevented. It is an object of the present invention to provide a culm inheritance device for a combine harvester.

Hereinafter, in order to further deepen the understanding of the present invention, the present invention will be explained in detail based on the illustrated embodiment. Fig. 1 is a schematic side view of an advanced type combine harvester according to the present invention, and Fig. 2 is a side view thereof. In the figure, 1 is a machine base, 2 is a truck frame equipped with a pair of running rollers 3, 3 on both left and right sides, and support structures 4, 4 are provided between this truck frame 2 and the machine base 1. It is erected.

Reference numeral 5 denotes a threshing machine mounted on the machine stand 1, and inside thereof, a high-grade handling cylinder 6 of an axis orthogonal type is mounted on a shaft along the longitudinal direction of the machine stand 1.

Reference numeral 7 designates a reaping device for two-row mowing, which includes a plurality of grass dividing boards 8 and cutting blades 9, and each of these elements 8 and 9 is connected to a reaping frame 1.
At the same time, a rotating fulcrum pipe 13 for raising and lowering the reaping section is connected to the rear end of the frame 10 via a lifting drive bevel case 11 and a reaping drive connecting pipe 12. It is configured to be raised and lowered as appropriate.

That is, a bracket 14 is attached to the connecting pipe 12, and a lifting hydraulic cylinder 15 is provided between the bracket 14 and the truck frame 2, so that the reaping section can be raised and lowered as appropriate.

Reference numeral 16 denotes a culm support transfer device, which is composed of a feed chain 17 and a support rod 18 installed along the upper part of the chain 17, and is installed along the handling opening of the threshing machine 5. It is.

Further, 19 is a step, and a driver's seat 21 is provided on the step 19 via a seat pipe 20, and a driving operation section 22 is formed in the front part of the driver's seat 21.

In other words, the operation column 23 is installed upright on the step 19, and the operation panel surface 23a is accessed from inside this operation column 23.
A threshing clutch lever 24, left and right side clutch levers 25, 26, a traveling main clutch lever 27, and a reaping latch lever 28 are respectively erected on the top to constitute the driving operation section 22.

Further, numeral 29 is a paddy receiving stand, and above it is facing a frying conveyor device 30 for taking out fine grains from the first mouth.

31 is the second thrower cylinder for reducing and transferring the second ring source from the second port at the bottom of the handling chamber, and 32 is the feed chain 1T.
A straw removal chain 33 is a cover for the chain 32, which extends from the terminal end of the straw removal chain 32 to the upper part of the cutter of a straw removal cutting device (not shown).

Furthermore, 34 is a water-cooled 4-cycle condenser diesel engine mounted on the machine base 1, and 35 is a drive sprocket for the traveling roller 3;
It is connected to 6.

Further, 37 is an idle roller that supports the end of the roller 3 that runs together with the sprocket 35, and 38... is a plurality of track rollers that are brought into sliding contact with the lower inner surface of the roller 3 that runs.

Furthermore, 39 is a suction/discharge seat device whose suction port is opened toward the sorting air path, and 40 is an inlet supply plate provided above the front part of the threshing machine 5.

Next, to explain the shell culm conveying device, the cutting blade 9
A scraping wheel 41 and a scraping belt 42 are rotatably installed in the upper part of the culm to scrape the root side of the culm.

In addition, each bevel case 11, 43 has a lifting connection pipe 44.
．． Left and right shell culm pulling devices 46 and 47 are installed via the shaft 45 to cause the piloerection and lodging of the shell culm.

Furthermore, a sprocket (not shown) for driving a lower pre-conveyance chain 48 is provided coaxially with the scraping wheel 41 to constitute a lower pre-conveyance device, which is configured to clamp and convey the culm base of the culm. ing.

The starting end of a lower post-transporting chain 49, which is a cut husk culm transporting chain, faces behind the pre-transporting chain 48, and the terminal end of the chain 49 is directed toward the starting end of the feed chain 17. It has been extended.

On the other hand, an upper conveying device 50 for pinching and conveying the tip side of the shell culm is extended above the lower conveying chain 48°490, and the conveying tines 50a of this device 50 are made to protrude toward the shell culm conveying path. In this state, the upper conveyance device 50 is covered with an upper conveyance cover 51.

Here, the bevel case 43 is connected to the upper conveyance device 50.
The rotating force is transmitted from the upper transport drive case 52 through the upper transport drive case 52.

By the way, there is a hydraulic device 5 at the bottom of the driver's seat 21 mentioned above.
3 and a hydraulic control lever 54 for automatic lifting. By operating the lever 54, hydraulic oil is appropriately supplied to the cylinder 15, and by lifting and lowering the reaping section using the rotation fulcrum pipe 13 as a fulcrum, the culm can be raised and lowered. It is configured to adjust the cutting height.

Further, the long and short culm adjustment guide plate 55 includes a long and short culm adjustment lever 5.
6, the lower end of the lever 56 is connected to the lower pre-conveyance device constituting the lower pre-conveyance chain 48, and by manually operating the adjustment lever 56 as appropriate, the support shaft 5T can be used as a rotation fulcrum. The inclination angle of the lower pre-conveyance chain 48 is varied, thereby adjusting the interval between the lower conveyance chains 48 and 49 to adjust the handling depth of the culm as appropriate.

Furthermore, a traveling speed change lever 58 is installed upright on the traveling transmission 36, and the traveling speed of the aircraft is appropriately varied by operating the lever 58 via a speed change gear inside the mission case. .

Furthermore, numeral 59 is an upper conveyance chain case, and a lower conveyance guide rod 60 is attached to this case 59, and chain guide rods 62 are attached to several rows 60 via support fittings 61.

Next, the structure of the shell culm joint device, which is the core of the present invention, will be explained in detail with reference to FIG. 1 and FIGS. 3 and 4.
A base end portion of a feed chain guide rod 63 is rotatably supported on the feeding start end side of the support rod 18.

That is, the guide rod fulcrum shaft 64 is connected to the support rods 1B and 18.
At the same time, the base end of the feed chain guide rod 63 is fixed to the fulcrum shaft 64, and one end of the torsion spring 65 wound around the fulcrum shaft 64 is wound around the guide rod 63 to maintain normal operation. In some cases, the intermediate portion of the guide rod 63 is configured to be close to the feed chain 17 and the tip portion is close to the lower post-transport chain 49, respectively, from the feed end of the lower post-transport chain 49 to the feed start end of the feed chain 17. The culm is constructed so that it can be inherited.

Moreover, in this embodiment, the tip of the feed chain guide rod 63 is brought into contact with the guide rod 62, and
2, the guide punch 63 extending from the contact portion to the feed chain 1-7 is curved in a curvature shape along the swinging trajectory of the chain 49 after being conveyed to the lower part.

Further, a hook 66 is attached to the tip of the support rod 18 for locking the guide rod 63 in an upwardly lifted state during cutting work.

A locking pin 67 is provided at the outwardly projecting end of the hook 66.
A spring holder 68 is also attached, and a spring 69 is stretched between the spring holder 68 and the support rod 18.

Additionally, regarding the configuration of each part shown in Fig. 3, 7
0 is a sprocket for driving the chain 49 constituting the lower pre-transport device, 11 is a chain guide plate of the device, and 12 is an idle rucket screwed to this guide plate 11, and an idler 13 is pivotally supported at its upper end. are doing.

Further, reference numeral 14 denotes a straw presser screwed to the handling cylinder cover 75, and a compression spring γ5 is stretched between the presser stand 14 and the support rod 18.

On the other hand, a chain guide metal γ7 is screwed to the lower surface of the tip of the chain stand 16 of the feed chain 11, and an induction sprocket (78) is mounted on the tip of the chain guide metal γ7.
A tension spring 80 is also provided to apply appropriate tension to the feed chain IT.

Note that 81 is a feed chain front cover.

The present invention is constructed as described above, and its operation will be explained below.

Now, when the combine harvester is working, the weed cutting board 8 divides the standing culms, and the culm lifting devices 46 and 41 raise the culms, and the cutting blade 9 at the base of the culms cuts them. The culm is raked in by the raking belt 42, and the culm base portion of the culm is held by the lower conveyance front chain 48, and the tip side is held by the upper conveyance device 50, and the culm is conveyed sequentially to the rear.

After being conveyed to the lower part, the husks connected to the chain 49 are guided by the feed chain guide rod 63 and fed to the feed start end of the feed chain 11, and then inserted into the handling chamber from the handling opening of the threshing machine 5. The handling teeth 6a implanted in the handling barrel 6...
・Threshing is done in this process.

Next, by operating the hydraulic operating lever 54, the reaping section is raised using the rotational fulcrum pipe 13 as a fulcrum -316, and the lower conveyance chain 49 is swung clockwise as shown by the imaginary line length in Fig. 3. do.

At this time, the guide rod 62 is the feed chain guide rod 63.
Since it sequentially moves backward along the curved part of the culm, the pressing force of several rows 63 against the culm can always be kept constant. The culm can be smoothly transferred from the part to the feed start end of the feed chain 11.

Therefore, if the spring force of the torsion spring 65 that urges the feed chain guide rod 63 is set in advance, such a receiver can perform the splicing action properly.

On the other hand, during cutting work, the feed chain guide rod 63 is connected to the torsion spring 65 as shown by the imaginary line β in FIG.
When the guide rod 63 in this state is locked by the hook 66, the upwardly lifted and locked guide rod 63 guides the culm that is inserted when it is removed. In order to achieve the desired effect, such shortcuts can be carried out smoothly.

As is clear from the above embodiments, the present invention has a supporting rod 18 along the upper part of the feed chain 1T, and the upper side of the feed chain 1T is used as a conveying surface to pinch and convey the culm, and the starting end of the feed chain 17 is A feed chain guide rod 63 is provided, such as a lower post-transport chain 49 whose terminal end is movable toward and away from the feed chain guide rod 63 supported by the front end of the support rod 18 and installed along the upper conveyance surface of the feed chain 1T. In the combine harvester equipped with
The feed chain guide rod 63 along the trajectory of the end
The tip side of the feed chain guide rod 63 is curved, and the tip of the feed chain guide rod 63 is extended so as to be able to cross the end of the chain guide rod 62 on the side of the conveyance chain 49, and is disposed at the end of the conveyance chain 49 that is displaced when adjusting the cutting height. The feed chain guide rod 63 can always be supported in the same receiving shape, and the shell culm can be reliably inserted between the feed chain 17 and this guide rod 63 regardless of the culm length. By intersecting the chain guide rod 62 of the conveyance chain 49, the culm inheritance of each of the guide rods 62, 63 can be obtained well without special support for the tip of the feed chain guide rod 63. Compared to the conventional method, this method has remarkable effects such as being able to prevent disturbances in the culm conveying posture and unreasonable deformation of the feed chain guide rod 63.

[Brief explanation of the drawing]

Fig. 1 is a side view of a combine equipped with a culm joint device according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged side view of the main parts of Fig. 2, and Fig. 4 is IV-IV in Figure 3
It is an arrow sectional view along a line. 16... Culm graft transfer device, 17...
Feed chain, 18... Scissors lever, 49...
... Chain after lower conveyance, 63 ... Feed chain guide rod, 65 ... Spring, 66 ...
···hook.

Claims (1)

[Scope of utility model registration request] A supporting rod 18 is installed along the upper part of the feed chain 1γ,
A reaping culm conveying chain 4 that pinches and conveys the husks using the upper side of the feed chain 17 as a conveyance surface, and that has its terminal end movable toward and away from the starting end of the feed chain 17.
9, and a feed chain guide rod 63 supported on the front end of the support rod 18 and extending along the conveyance surface above the feed chain 17. The tip side of the feed chain guide rod 63 is curved along the trajectory, and the chain guide rod 6 on the conveyor chain 49 side
2. The feed chain guide rod 6 can be crossed at the terminal end.
A combine harvester culm inheritance device characterized by having three extended tips.