JPS5942832Y2 - reaping harvester - Google Patents

Description

[Detailed description of the invention] The present invention has a sensor configured to be displaced by the pressing force of the planted stem culm to be reaped against the restoring force of a spring, which is mechanically interlocked with an interlocking reaping latch. The present invention relates to an improvement in a reaping harvester configured to drive a reaping device only when the reaping device is pressed and displaced by the stem culm.

In the above-mentioned reaping and harvesting machine, conventionally, the clutch has a transmission contact surface of the driven side interlocking member and a transmission contact surface of the drive side interlocking member that presses and rotates the driven side interlocking member, Since the driven-side articulating member was configured to be pressed only in the direction of rotation by the driving-side articulating member, such as being perpendicular to the direction of rotation, the clutch disengagement operation could be performed as desired. As done,
If the spring is set, its restoring force will be relatively strong, making it easy for the stem culm to be pushed down by the reaction force of the pressing force exerted on the sensor.

The present invention ensures that the clutch disengagement operation is performed reliably, but also allows the spring to have a relatively weak elastic restoring force, thereby avoiding as much as possible the rush of the stem culm caused by the sensor. The purpose is to do.

Next, embodiments of the present invention will be described based on illustrative drawings.

A threshing section 2 is provided on a machine base equipped with a crawler-type traveling device 1, and in front of the machine base, a pair of left and right lifting devices 3, 3 for the planted husk culm, a reaping device 4 for the raised husk culm, and a reaping device are provided. A pre-processing section comprising a conveying device 6 that supplies the grain tank to the threshing foot chain 5, and a pair of left and right rotating bodies 1.7 that scrape the stock side of the grain culm from the reaping device 4 into the starting end of the conveying device 6. A is provided, and as the aircraft runs, the planted culms are harvested,
It consists of a combine harvester that threshes the harvested grain culm.

As shown in FIG. 2, an interlocking type reaping latch 10 is attached to the interlocking part between the pre-processing section #41g moving cylinder shaft 8 linked to the engine side and the driving shaft S for the reaping device 4.
An interlocking type conveying latch 12 is provided at the interlocking portion between the drive shaft 11 and the conveying device 6, and an interlocking type buido chain clutch 14 is provided at the interlocking portion between the drive cylinder shaft 8 and the drive shaft 13 for the threshing feed chain 5. On the other hand, a contact sensor 15 for the planted culm is swingably provided in the lifting path B for one of the lifting devices 3, and each of the clutches 10, 12, 14 is connected integrally and simultaneously. A swingable fork 16 for turning on and off, a swinging lever 17 for operating the fork 16, and the sensor 15.
An arm 18 integrally connected to the
and a release wire 19 connecting the lever 1″I.
The sensor 15 and all of the clutches are interlocked by a mechanical interlocking mechanism consisting of
7 and the fuselage part, all clutches 10, 12° 14
A tension spring 20 that biases the sensor 15 in the cutting direction and biases the sensor 15 into a swinging position protruding into the path B.
is constructed to constitute a drive restraining mechanism for the reaping device 4, the conveying device 6, and the threshing feed chain 5. Only when the aircraft is oscillated toward the rear of the aircraft against the restoring force of the spring 20, each clutch 1
0.12.14 is in the engaged state, and the reaping gear d4 conveying device 6 and threshing feed chain 5 are activated.

As shown in FIG. 3, the clutches 1t) and 12.14 each include a movable occlusal member 21 that slides in conjunction with the sensor 15, and a movable occlusal member 21 during occlusion. Fixed 111v joint member 2 that presses and rotates
The transmission abutment surfaces 23 of the two engagement members 21 and 22 are configured as cam surfaces that are inclined with respect to the rotation direction of the two engagement members 21 and 22, and the movable engagement member 21 is configured to reduce the transmission rotational force of the fixed engagement member 22 relative to the movable engagement member 21. The movable engaging member 2 is biased in the clutch disengaging direction by the component force generated by the cam surface, and the spring 20 has a weak restoring force.
The operating force required for sliding in the cutting direction in step 1 is as light as possible.

A chain tightener 25 is installed in the case 24 for the chain transmission part that transmits the g power to each of the pulling devices 3.
To support the tightener 25, as shown in FIG.
Insert the opposite side of the headed pin 26 attached to one end into the bottle hole 27 on the one split case 24a side that constitutes the front case 24, and then insert it into the bottle hole 27 to prevent the bottle 26 from being removed. The head side of the other split case 24b is attached to the protrusion 28 of the case 24b.
It is in contact with.

As shown in FIG. 5, a front bobbin hole 27 and a protrusion 28 are provided on both sides of the case 24 at a position corresponding to the chain arrangement, and the case 24 is pulled up by the left and right lifting devices 3 and 3.
The tightener 25 can be attached to either the left or right side so that it is common to both.

In order to raise the movable lifting claws 29 of each of the lifting devices 3 and raise them at the starting end, as shown in FIG. It is installed so that it can rotate freely.

As shown in FIG. 6, the scraping rotary body I includes a skirt portion 7b extending on the lower surface side of the scraping action portion 7a.
The outer periphery of the container is configured to have a truncated conical shape with a smaller diameter at the lower end, so that the rolled waste straw etc. can easily fall off due to its own weight.

The clutch configuration described above can also be applied to a harvesting machine for harvesting various grain culms such as binders and rushes, and a harvesting machine for harvesting various stem culms.

Further, in order to provide each of the clutches 10, 12, and 14 with a cutting biasing force due to the transmitted rotational force, only one side of the transmission contact surface of the movable side mating member 21 and the fixed jaw portion attachment 22 is attached to the cam surface. It may be configured.

In summary, the present invention provides the reaping and harvesting machine described above, in which the reaping latch is configured such that the movable side mating member, which is slid in conjunction with the sensor, is biased in the clutch disengagement direction by a transmitted rotational force. A further feature is that at least one transmission contact surface of the occlusal member is configured as a cam surface.

That is, the movable engagement member 21 is urged to slide in the clutch disengagement direction by a component of the rotational force transmitted by the cam surface, and the sliding movement toward the disengagement side is performed against the static frictional force. Since the occlusal structure can be operated with a light operating force compared to the conventional articulation configuration, even if the spring 20 has a weaker elastic restoring force than the conventional art, the clutch 10 can be operated as desired. The cutting operation can now be performed reliably, and as a result, it has become possible to avoid as much as possible the planted stem culm being pushed down due to the reaction force of the pressing force exerted on the sensor 15.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the reaping harvester according to the present invention,
Fig. 1 is a front view of the combine, Fig. 2 is a schematic plan view of the control mechanism, Fig. 3 is a side view of the main parts, Fig. 4 is a cross-sectional view of the transmission structure for the lifting device, and Fig. 5 is a schematic plan view of the control mechanism. FIG. 4 is a cross-sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a cross-sectional view of the scraping rotor. 4... Reaping device, 10... Clutch,
15... Sensor, 20-... Spring, 21, 22... Occlusal member, 23...
- Transmission contact surface.

Claims (1)

[Scope of utility model registration request] The sensor 15 is configured to be displaced by the pressing force of the planted stem culm to be reaped against the restoring force of the spring 20.
The reaping harvester is configured to be mechanically interlocked with an interlocking reaping latch 10 to drive the reaping device 4 only when the sensor 15 is pressed and displaced by the stem culm, and the reaping latch 10 is configured to include: The engaging member 21.
22, at least one transmission contact surface 23 is configured as a cam surface.