JPH0541654Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention is an exhaust system for a combine harvester in which a culm clogging alarm switch provided on a culm conveying device is also used as an alarm switch that warns of the open state of a culm cutting device. This invention relates to a culm cutting device.

[Prior art]

A culm cutting device is attached to the lower rear of the culm conveying device installed in the combine, and this culm conveying device includes a culm detection sensor that warns of clogged culm, A culm clogging alarm device is provided which includes a detection switch disposed opposite to the sensor and a buzzer or alarm lamp connected to the detection switch.

In addition, the culm cutting device opens around the fulcrum shaft on one side of the machine in order to remove the culms that are stuck in the conveyance path of the culm conveying device, and to facilitate maintenance of the device itself. It's becoming like that.

However, if you forget to close this culm cutting device and start the engine with one side open, the aircraft will be in a cantilevered state due to vibrations caused by the engine startup and vibrations caused by the aircraft running as it is. There was a problem that the culm cutting device was damaged.

[Purpose of invention]

The present invention was devised to solve the problem in view of the above-mentioned conventional situation, and uses a culm clogging alarm switch provided in the culm conveying device to warn of the open state of the culm cutting device. It is an object of the present invention to provide a culm cutting device for a combine harvester that can also be used as an alarm switch to warn of the open state of the culm cutting device.

[Structure of the idea]

A culm cutting device for a combine according to the present invention that achieves the above object is provided with a culm cutting device that can be opened and closed on one side of the machine body around a fulcrum shaft on one side of the machine body at the lower rear of the culm conveying device, and the other side can be opened and closed. A detection switch installed opposite to the culm detection sensor provided on the conveyance path of the conveying device is used as a culm clogging alarm switch when the culm cutting device is in the closed position, and as an open position alarm switch when the culm cutting device is in the open position. It is characterized by being configured so that:

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be explained.

As shown in FIG. 5, the combine 1 is moved by a traveling device 3 consisting of a pair of left and right crawlers 2 that touch the ground, and a threshing device 5 is mounted on a machine stand 4 provided above the traveling device 3. A pre-processing device (not shown) is installed in front of the threshing device 5 to harvest the standing grain culms and to convey the cut grain culms to the threshing device 5.
Further, behind the end of the feed chain (not shown) of the threshing device 5, a shedding culm conveying device 6 is disposed, and at the rear and lower part of this shedding culm conveying device 6, a shedding culm cutting device 7 and a shedding culm conveying device 7 are provided. A waste culm processing device 10 is disposed behind the grain culm, and includes a concentrator 8 that condenses a predetermined amount of uncut grain culms and releases them into the field.

The waste culms transported by the waste culm transport device 6 are processed by the converging device 8 by switching the switching plate 9 to a substantially horizontal laid-down position.
Moreover, by switching to the upright position shown by the solid line in FIG. 5, the cutting process is performed by the culm cutting device 7.

A cut straw spreading device 11 is provided below the waste culm cutting device 7 to spread the straw cut by the waste culm cutting device 7 toward the already cut field side. This cut straw spreading device 11 consists of a helical shaft 1 having a helical blade 12 fixed to the stock side, as shown in detail in FIG.
3 is rotatably provided, and this spiral blade 1
The spiral bottom plate 14 provided below the spiral blade 12
A notch 16 is provided in the rear half of a portion corresponding to the length of the jumping blade 15 connected to the tip side of the
As the springing blade 15 rotates, the cut straw is thrown out from this notch 16 toward the rear.

Further, the spring blade 15 is provided with a bent portion 17 that is bent in an L shape with respect to the spring surface thereof, and this bent portion 17 is bent in an E direction that is oblique to the axial direction of the helical shaft 13. The bent portion 17 causes the wind to act in the E direction.

On the rear side in the jumping direction by the jumping blades 15, there is a sink bottom plate 1 that constitutes a sliding passage 20 to the focusing device 8.
8 is arranged, the cut straw thrown out by the jumping blades 15 once collides with the back side of the sink bottom plate 18 and is spread, and then spread and falls to the field below.

As shown in FIG. 3, the culm cutting device 7 has a vertical fulcrum shaft 25 provided on the tip side of the culm, and the stem side of the culm is in a closed position as shown by a solid line. It is configured to be openable and closable to the open position shown by the chain line. A trunk fitting 26 is provided on the stock side of the culm cutting device 7, and a stopper fitting 2 is provided on the threshing device 5 side.
Further, a positioning hole 38 is provided on the stock base side on the threshing device 5 side, and a positioning pin 37 that fits into the positioning hole 38 is provided on the opposite culm cutting device 7 side. is fixed. The culm cutting device 7 is moved by the operation of attaching and detaching the positioning pin 37 and the trunk fitting 26.
Opening and closing operations can be performed around the fulcrum shaft 25. This culm cutting device 7 is not limited to the embodiments, but may be configured to open and close around a fulcrum shaft on one side of the machine body and on the other side.

The culm cutting device 7 also has a pair of front and rear rotating shafts 2.
8 and 30 are provided, and both rotating shafts 28 and 3
A large number of disk blades 29 and 31 are fixed to the rotary shaft 28 and 30 and are opposed to each other at a predetermined interval in the axial direction, and gears 32 and 33 that mesh with each other are fixed to the rotary shaft 28 and the rotary shaft 30, respectively. ing.

Further, a pulley 34 is fixed to the rotating shaft 30,
This pulley 34 and the pulley 3 provided on the side of the threshing device 5
Since the V-belt 36 is wound around the culm cutting device 5, the V-belt 36 is wound on and off in conjunction with the opening/closing operation of the culm cutting device 7.

The base end of a culm detection sensor 40 made of an elastic plate is fixed to a mounting plate 47 fixed to the conveyance path of the culm conveyance device 6, and the culm detection sensor 40 is mounted oppositely on the movable side. The detection switch 41 is fixed to a swinging plate 43 rotatably provided on the mounting plate 47 about a fulcrum shaft 42 fixed to the mounting plate 47, and the swinging plate 43 is rotated downward by a spring 44. A locking surface 45 is provided on one side. Further, a locking piece 46 that slopes diagonally downward so as to lock a locking surface 45 of the swing plate 43 is fixed to the cover 7a provided above on the side of the culm cutting device 7.

As shown in FIG. 4, this detection switch 41 is provided to open and close an alarm circuit 50 which is connected in parallel to the normal load circuit of the combine harvester connected to a battery 52, and an alarm device 51 is provided in this alarm circuit. . This normal load circuit also includes a contact 54 connected to the starter circuit, and a contact 54 connected to the normal load circuit.
A starter switch 53 is provided so as to be able to freely switch between an IG contact 55 and an OFF contact.

When the culm cutting device 7 is fixed in the closed position as shown in FIG. 42 in the counterclockwise direction, and the detection switch 41 moves to the upper position, the detection switch 41 is moved upwardly by the amount of ejected culm that has increased on the conveyance path.
The culm clogging alarm switch can be activated only by the culm clogging. In this case, starter switch 5
3 is automatically switched to the IG contact 55 side because the combine 1 is in operation.

Then, as shown in FIG. 1A, when the engine is stopped and the culm cutting device 7 is operated to the open position,
Since the locking piece 46 of the culm cutting device 7 also moves backward, the swing plate 43 urged clockwise by the spring 44 rotates around the fulcrum shaft 42.
The detection switch 41 side moves to the lower position and comes into contact with the culm detection sensor 40 to turn on, which can serve as an open position alarm switch for the culm cutting device 7. In this state, the starter switch is activated. After starting the engine with 53, if you take your hand off the key, the starter switch 53 automatically connects to the IG contact 55, so the detection switch 41 has already been activated.
When the alarm circuit 50 is in the ON state, its alarm 51 sounds to warn that the culm cutting device 7 is in the open position.

Therefore, the culm clogging alarm switch 41 provided on the conveyance path of the culm conveying device 6 is made to double as an alarm switch that warns of the open state of the culm cutting device 7.
The open state of the culm cutting device 7 can be warned.

Furthermore, the detection switch 41 that alerts the open state of the exhaust culm cutting device 7 can be restored to the exhaust culm clogging alarm switch by bringing the exhaust culm cutting device 7 into the closed state.

As a result, if you forget to close the conventional culm cutting device and start the engine with the other side open, the machine will vibrate due to the engine, and if you continue to drive, the machine will be in a one-sided standby state. The problem of damaging a certain culm cutting device can be solved.

[Effect of idea]

The culm cutting device for a combine according to the present invention that requires this is provided with a culm cutting device that can be opened and closed on one side of the machine body around a fulcrum shaft on one side of the machine body at the rear and lower part of the culm conveying device, and A detection switch installed opposite to the exhaust culm detection sensor provided on the conveyance path is configured to act as an exhaust culm clogging alarm switch when the exhaust culm cutting device is in the closed position, and to act as an open position alarm switch when the exhaust culm cutting device is in the open position. Because of the configuration, the exhaust culm clogging alarm switch installed on the conveyance path of the exhaust culm conveying device,
It can also be used as an alarm switch that warns of the open state of the culm cutting device, and can warn of the open state of the culm cutting device. Aircraft vibration caused by the engine when the engine is started with the engine open,
It is possible to solve the problem that the cantilevered culm cutting device is damaged due to body vibration when the machine is allowed to run as it is.

Furthermore, the detection switch that alerts the open state of the exhaust culm cutting device can be restored to the exhaust culm clogging alarm switch by closing the exhaust culm cutting device.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1A is a side longitudinal sectional view of the main part, Fig. 1B is a side longitudinal sectional view of the main part explaining the operation, Fig. 2 is a perspective view of the main part, and Fig. 3 is a plan view of the culm cutting device. Figure 4 is an electrical wiring diagram, Figure 5 is a side view of the culm cutting device,
6 is a sectional view taken along the line A-A in FIG. 5, and FIG. 7 is a perspective view of the main parts. 1... Combine harvester, 6... Culm conveying device, 7...
... Culm cutting device, 25... Fulcrum shaft, 40... Culm detection sensor, 41... Detection switch, 43... Rocking plate.

Claims (1)

[Scope of utility model registration request] A culm cutting device is provided at the rear and lower part of the culm conveying device, and the other side can be opened and closed around a fulcrum shaft on one side of the machine body, and a culm cutting device is installed opposite to the culm detection sensor provided on the conveyance path of the culm conveying device. A culm cutting combine harvester characterized in that the detection switch is configured to act as a culm clogging alarm switch when the culm cutting device is in a closed position, and to act as an open position alarm switch when the culm cutting device is in an open position. Device.