JPS5812585Y2 - Combine accelerator device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an accelerator device for a combine harvester.

Generally, when a combine harvester is driven on the road, the operator must use his/her left and right hands to operate various operating levers such as the side clutch lever, gear shift lever, and accelerator lever, which are located near the operating control unit and the driver's seat. Since the vehicle is driven on the road at an extremely high speed compared to the traveling speed in the field, there is a drawback that safety during travel is hindered due to such lever operation.

In order to eliminate this drawback, it would be possible to install a new accelerator pedal in the driving control section and reduce the number of manually operated levers when driving on the road, but simply installing an accelerator pedal would result in the following problems: A scandal occurs.

In other words, if the operator accidentally presses the accelerator pedal during reaping work in the field, the rotation of the handling drum will be excessively accelerated as the engine speeds up, causing a problem in the threshing process of the harvested husk. be.

Therefore, the present invention provides a combine harvester equipped with an accelerator lever for accelerating the engine, by providing an accelerator pedal in the operation section separately from the lever.
The number of levers operated by the operator with the left and right hands when the combine harvester is running on the road is reduced, and safety is improved when the combine harvester is running on the road.
By configuring the structure so that the interlock between the accelerator pedal and the accelerator wire is cut off when the accelerator is turned on, even if the operator accidentally operates the accelerator pedal during reaping work in the field, the rotation of the threshing section will not be stopped. It is an object of the present invention to provide an accelerator device for a combine harvester that can smoothly thresh the harvested husk without causing any fluctuation.

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 side view of a combine harvester according to the present invention, and Fig. 2 is a plan view thereof. 2 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 4 is this truck frame 2.
a pivot shaft for rotatably supporting the machine base 1;
6 is a lifting cylinder that lifts the front of the machine 1 upwards using the pivot shaft 4 as a fulcrum; 6 is a threshing machine mounted on the machine 1; inside the threshing machine, a handling barrel 7 is installed at the front and rear of the machine 1; It is mounted on an axis along the direction.

Reference numeral 8 denotes a reaping device for multi-row mowing; it is composed of a plurality of grass division plates 9 . . . and a cutting blade 10.

Reference numeral 11 denotes a husk culm transfer device, which is composed of a feed chain 12 and a culm rod 13, and is installed along the handling opening (not shown) of the threshing machine 6.

Further, 14 is a step, and a driver's seat 15 is provided on the step 14 via a seat frame, and a driving operation section 16 is formed in the front part of the driver's seat 15.

That is, the operation column 17 is installed upright on the step 14, and the operation panel 17a is opened from inside this operation column 17.
Threshing clutch lever 18 and reaping latch lever 19 on top
The driving operation section 16 is constructed by erecting left and right side clutch levers 20 and 21, respectively, and installing a latch pedal 22 running on the left side of the operation column 17.

Furthermore, 23 is a grain pedestal, and a grain frying conveyor device 24 for taking out fine grains from the first mouth is facing on the -L side thereof.

Reference numeral 25 indicates a straw cutting device detachably installed at the rear of the threshing machine 6; 26 indicates a straw removing chain extending from the end of the feed chain 12 to the upper part of the cutter of the straw cutting device 25; It's a cover.

Furthermore, 28 is an engine mounted on the machine base 1;
Reference numeral 29 is a drive sprocket for the traveling roller 3, which is connected to a traveling transmission (not shown).

30 is a front idler that supports the end of the roller 3 that runs together with the sprocket 29; 31 is a carrier roller that slides into contact with the upper inner surface of the roller 3 that runs;
2... are a plurality of track rollers brought into sliding contact with the lower inner surface of the crawler 3.

Furthermore, 33 is a suction/discharge seat device whose suction port is opened toward the sorting air path, 34 is an inlet supply plate provided in the handling chamber portion of the threshing machine 6, and 35 is a handling barrel pulley cover.

Next, to explain the shell culm conveying device, the cutting blade 1
A scraping drum 36 is installed in the upper part of the
The scraping drum 36 is rotatably equipped with a star wheel 37 for scraping the root side of the culm.

Each of these star wheels 37 is equipped in correspondence with the left and right shell culm lifting devices 39, 39, and coaxially with these star wheels 37 is a sprocket for driving the lower conveyor chains 4O, 40. (not shown) are provided to constitute the lower conveying devices on the left and right sides, and are configured to clamp and convey the root portion of the grain culm.

Furthermore, left and right -L portion conveying devices 41° 41 for pinching and conveying the tip side of grain culms are extended above the left and right lower conveying devices, and the conveying tines 41a in these devices 41.41 are used to convey the grain culms. The upper conveyance device 4L41 is covered with an upper conveyance left cover 42 and an upper conveyance layer cover 43, respectively, in a state of protruding toward the passage.

The starting end of the vertical conveying device 44, which can be adjusted in length and shortness, faces behind the upper conveying device 41, 41.
The terminal end of the device 44 extends toward the starting end of the feed chain 12.

Furthermore, detection devices 45 and 46 are attached to the inner surface of the handling cylinder boot IJ+- cover 35.

The detection devices 45 and 46 detect the handling depth of the culm inserted into the handling chamber, and change the inclination angle of the vertical conveyance device 44 via a hydraulic circuit to keep the culm always at a predetermined handling depth position. It is intended to be held in place.

In addition. 1 and 2, 41 is the fourth gutter-L section cover, 48 is the air cleaner, 49 is the engine dust prevention device,
Reference numeral 50 indicates a fuel tank, and reference numeral 51 indicates a dust feed adjustment lever 52, an auxiliary conveyance device.

Next, referring to Figures 3 and 4, the threshing clutch lever 1
To explain the pivot structure of 8, the lever 18 has its base end pivoted to a bin 53 provided in the operation column 17, and the lever 18 can be accessed at the upper part of the base end of the threshing clutch lever 18. Threshing clutch wires 56 and 57 are connected to the projecting piece 54 via a clutch link 55, and each of these wires 5
The wire 56 on one side of the 6° 57 is interlocked with a threshing clutch mechanism (not shown), and the threshing clutch is engaged when the oil mud clutch lever 18 is turned on or off as appropriate.

Next, the structure of the accelerator device, which is the core of the present invention, will be explained with reference to FIGS. 3 to 5.

An accelerator lever 58 is attached to the right side (left side in FIG. 3) of the operating column 1T, and after guiding the accelerator wire 59 connected to this lever 58 into the operating column 17, the accelerator lever 58 is connected to the lever 58. The wire 59 is extended toward the rear, and the end of this extension is connected to a decompression lever (not shown), so that the rotation speed of the engine 28 can be appropriately increased via the decompression wire or the like. .

Moreover, the right side of the -F'iij operation column 17 (third
In the step 14 on the left side in the figure, there is a bearing 6.
0 and 61 to support the fulcrum shaft 62, and the accelerator pedal 63 is loosely fitted onto the fulcrum shaft 62.

This accelerator pedal 63 is made by integrally connecting a pedal part 63a projecting above the step 14, an L-shaped rod 63b, a swinging fulcrum cylinder 63c, and a protruding piece S3d, and is inserted into the fulcrum cylinder 63C. It is designed to rotate against a spring 64 using a fulcrum shaft 62 as a fulcrum.

Moreover, a sawtooth-shaped engagement pawl 65 is integrally formed at one end of the swing fulcrum cylinder 63c.

A fulcrum cylinder 67 having an engaging pawl 66 that engages with the engaging pawl 65 is loosely fitted onto the fulcrum shaft 62, and a spring 68 is stretched between the fulcrum cylinder 67 and the bearing 60. , the claws 65 and 66 are configured to always mesh with each other under normal conditions.

Furthermore, projecting pieces 67a and 67b are integrally bored in the fulcrum cylinder 6T, and an accelerator wire 69 is connected to one of the projecting pieces 67a, and this wire 69 is extended rearward to form a decompression lever (Fig. one protrusion 67 connected to the other (not shown)
When the threshing clutch wire 57 mentioned above is connected to b and the threshing clutch lever 18 is turned on, that is, when the lever 18 is swung to the imaginary line position in FIG.

This is configured to cut off the interlock between the accelerator pedal 63 and the accelerator wire 69.

In addition, 70 in FIGS. 3 and 4 is a rearview mirror,
71 is a headlamp.

The present invention is constructed as described above and will be described below.

Explain its use.

Now, when you run a combine harvester on the road.

By stepping on the accelerator pedal 63 without manually operating the existing accelerator lever 58, the operator can increase or decrease the speed of the engine 28 as appropriate.

That is, when the accelerator pedal 63 is depressed against the spring 64, its fulcrum cylinder 63c rotates, and this rotational force is transmitted to the other fulcrum cylinder 67 via each engagement claw 65, 66, and the fulcrum cylinder 63c rotates. Since the accelerator wire 69 connected to the engine 67 via the protrusion 67a is pulled forward, the speed of the engine 28 is increased via the decompression lever and the decompression wire.

Therefore, when the combine harvester is running on the road, the number of levers that the operator operates with his left and right hands can be reduced, so it is possible to improve safety when the combine harvester is running on the road.

On the other hand, when reaping work is carried out in the field, when the reaping latch lever 19 and the threshing clutch lever 18 are turned on, the threshing clutch wire 57 is connected to the spring 68 as shown in FIG. One of the fulcrum cylinders 67 is moved away from the other fulcrum cylinder 63c in opposition, and the engagement of each of the engaging claws 65 and 66 is released, thereby cutting off the interlocking movement between the accelerator pedal 63 and the accelerator wire 69. Even if the operator accidentally operates the accelerator pedal 63 during such work.

The speed of the engine 28 is not increased by depressing the pedal 63.

Therefore, fluctuations in the rotation of the handling cylinder 7 due to the above-mentioned erroneous operation can be prevented.

Thus, the threshing process of the harvested husk can be carried out smoothly.

In addition, when turning the aircraft, press the accelerator lever 5 at hand.
By adjusting 8, it is possible to reduce the traveling speed and smoothly turn the aircraft.

As described in detail above, the present invention is a combine harvester equipped with an accelerator lever 58 for accelerating the engine 28, in which an accelerator pedal 63 is provided in the operation section 16 separately from the lever 58, and an accelerator wire is connected to the pedal 63. 69 and when the threshing clutch lever 18 is turned on (on operation), the interlocking action between the accelerator pedal 63 and the accelerator wire 69 is cut off. The pedal 63 during reaping work can be improved.
It has various excellent advantages, such as being able to prevent fluctuations in the rotation of the threshing unit due to erroneous operation, and making it possible to smoothly thresh the harvested husk.

In the above embodiment, the accelerator pedal 63 and the accelerator wire 69 are connected or disconnected by a mechanical device.
It goes without saying that 9 may be configured to be interlocked or cut off by an electrical device.

[Brief explanation of the drawing]

FIG. 1 is a side view of a combine harvester equipped with an accelerator device according to the present invention, and FIG. 2 is a plan view of FIG. 1. 3 is a front view of the driving operation unit 16, FIG. 4 is a side view partially sectionally showing the driving operation unit 16, and FIG. 5 is a plan view showing the related structure between the accelerator pedal 63 and the accelerator wire 69. , FIG. 6 is a plan view for explaining the operation of the present invention. 16... Driving operation unit, 18... Threshing clutch lever, 2B... Engine 58...
...Accelerator lever-163...Accelerator pedal wire. 69...Accelerator

Claims (1)

[Scope of utility model registration request] In a combine harvester equipped with an accelerator lever for accelerating the engine, when an accelerator pedal is provided in the operation control unit separately from the lever, an accelerator wire is connected to the pedal, and the threshing clutch lever is turned on. ,
An accelerator device for a combine harvester, characterized in that it is configured to cut off interlocking between an accelerator pedal and an accelerator wire.