JPS6041069Y2 - reaper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reaping machine in which a cutting height control sensor is provided on the lateral side of a reaping processing device so as to be swingable up and down about the horizontal axis at its front end.

The above-mentioned reaper is equipped with a cutting height control sensor to maintain a constant cutting height regardless of pitching of the machine or fluctuations in the amount of sinking into the mud. Alternatively, there is a problem that the sensor may be deformed or damaged due to other objects coming into contact with it from the lateral and outer sides.

In addition, the vertical swing range of the sensor is limited to a certain range for operating the operated device, but conventionally, the descending range of the sensor is limited by receiving the front end of the sensor. Therefore, when the sensor is pressed downward due to contact with the ground when the machine is moved backwards with the cutting height control activated during reaping work on a headland, for example, the sensor will be restricted as described above. There was also the problem that the front end was bent downward using the front end as a fulcrum, causing deformation and damage.

The present invention aims to solve both of the above-mentioned problems with an inexpensive and simple structure that uses dual-purpose members, so that it can be used satisfactorily over a long period of time.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

As shown in FIGS. 1 and 2, a crawler traveling device 1,
A pair of left and right stem culm introduction paths A1. A device 4 for pulling up the stem culm introduced into A2, a clipper-type cutting blade 5 as a reaping processing device for cutting the base of the pulled stem culm, and an auxiliary conveyance device 6a for conveying the cut stem culm backwards and merging it together. , 6b, a reaping processing section consisting of a rear conveyance device 7 that conveys the merged stem culms toward the threshing device 2 is provided, and as the machine advances, the stem culms planted in the field are harvested and the stem culms are subsequently threshed. It is structured so that processing operations are automatically and continuously performed.

Note that this combine harvester is normally set to perform circular mowing work with the already cut area located on the right side of the machine body.

The support frame 8 of the reaping processing section is pivotally supported to the vehicle body by a hydraulic cylinder 9 so as to be swingable around the horizontal axis X, and as shown in FIGS. With respect to the horizontal axis 10 provided on the right side of the blade 5 and supported by the frame 8, cutting heights are arranged in parallel at a horizontal interval larger than the plant diameter of the target stem culm and smaller than the planting interval. A spring 12 that pivots the front ends of a pair of grounding rod-like bodies 11a and 11b as control sensors so as to be able to swing up and down about an axis Y, and biases each of the rainforest-like bodies 11a and 11b downward.
a and 12b are provided.

Furthermore, a control valve 1 for switching the operating state of the hydraulic cylinder 9 is provided.
The wire 15 extending from the swing operating arm 14 of No. 3 is connected to the tongue pieces 16a, 16 attached to the rainforest-like bodies 11a, llb, respectively.
The pin 1 is placed in a state in which relative movement in the vertical direction is prevented by long holes 17a and 17b extending in the vertical direction with respect to b.
8 and the swing operation arm 14.
The hydraulic cylinder 9 is extended by a spring 19 to urge the reaping section toward the upward movement.

When the heights of the rainforest bodies 11a and llb relative to the cutting blade are both within the set range, or when one of the heights is within the set range and the other is rising above the set range, the control valve 1
3 to a neutral state in which the operation of the hydraulic cylinder 9 is stopped, and when the heights of the rainforest-like bodies 11a and llb relative to the cutting blade rise too far out of the set range, the control valve 13 is switched to the neutral state where the hydraulic cylinder 9 is stopped. When the reaping processing section is raised by the extension operation, and when the relative mowing height of at least one of the rainforest bodies 11a and 11b falls outside the set range, the control valve 13 is lowered by the hydraulic pressure. The cylinder 9 is shortened to lower the cutting section, thereby automatically maintaining the height of the cutting blade 5 relative to the ground at the set height, thereby adjusting the cutting height. It is designed to stabilize the situation.

In short, the height of the cutting blade 5 above the ground is detected by the rainforest bodies 11a and 11b, and the cutting processing section is automatically raised and lowered to stabilize the cutting height regardless of pitching of the vehicle body. , and prevents the reaping unit from rising even if one of the pair of rod-shaped bodies 11a, llb rides on foreign objects such as straw waste, uncut stem culms, stumps, etc. and deviates from the setting range. This is to prevent malfunctions caused by foreign objects.

Further, the swinging operation arm 14, which is biased toward the lowering operation by the sensors 11a and llb, is fixed to the locking pin 20.
A valve operating lever 21 is provided which is locked and moved upward at the rising position U1 and the lifting stop device N1.
By switching the lever 21 to the lowered position, the reaping processing section can be raised or lowered as desired.Furthermore, by switching the lever 21 to the automatic position A, the pin 20 can be moved to the arm 14.
the rainforest-like body 11a,
The arrangement is such that the reaping processing section is automatically moved up and down based on the information of llb.

In addition, 30.30 in the figure is a spring that urges the lever 21 to return to the vertical stop position N.

In order to provide the rainforest bodies 11a and 11b, both the paths A
The horizontal shaft 10 is attached to a support frame 29 that extends laterally outward in a cantilevered manner from a cylindrical frame 23 that supports the right end of the three weeding tools 22 located at the front end of 1w A2. I support this.

Then, a rod-shaped protector 24 that covers the front and lateral sides of the rainforest bodies 11a and llb is attached to the connecting piece 24 at the front end thereof.
A is bolted to the cylindrical frame 23, and a rod-shaped reinforcing frame 25 connected to the rear end is connected to the cylindrical frame 23 by bolts, thereby creating a rainforest-like structure. It is designed to protect the bodies 11a and llb from contact with other objects.

Further, the reinforcing frame 25 is configured to also serve as a stopper that receives and restricts the descending range of the rear ends of the rainforest-like bodies 11a and llb, so that the descending range of the rainforest-like bodies 11a and llb is restricted by the front end thereof. The arm is supported by a pivot portion to the horizontal shaft 10 and a connecting portion to the wire 15, and the rear end is regulated while being supported by the reinforcing frame 25.

When the right-hand weeding tool 22 is supported by the cylindrical frame 23, a rod-shaped body 27 is extended rearward from a plate 26 in an upright position located at the back of the weeding tool 22, and the rod-shaped The body 27 is inserted into the cylindrical frame 23 so as to be movable back and forth, and the back and forth movement is fixed by the contact bolt 28, so that the position of the weeding tool 22 can be adjusted in the back and forth direction. It's a big deal.

Further, the front end of the protector 24 is attached to the weeding tool 22.
extends toward the rear of the plate body 26, and its extending end is connected to the plate body 26.
This prevents the uncut stem culm from collapsing onto the rod-like bodies 11a and 11b by the weeding tool 22 and the protector 24 during splitting work. It is structured so that it can be guided continuously.

5 and 6 show another embodiment,
This is provided with a protector 24A having a surface that covers the front, lateral and upper sides of the rainforest bodies 11a and llb.

In the embodiment, a pair of sensors 11a and 11b are provided, but only one sensor 11a may be provided.

Further, the present invention can be applied to reapers such as binders in addition to combine harvesters.

In summary, the reaping machine according to the present invention has a government-registered structure, and is provided with a protector 24 that covers at least the front and lateral outer sides of the sensor 11a, and the rear end of the protector 24 is connected to the reaping processing device 5. The reinforcing frame 25 is also configured to serve as a stopper for receiving and regulating the descending range of the rear end of the sensor 11a.

That is, since the protector 24 is provided to cover at least the front and lateral sides of the sensor 11a, other objects may come into contact with the sensor 11a from the front or the lateral sides.
This can solve the problem of government records where the sensor 11a is deformed and damaged, and moreover, the protector 24 and the reaping processing device 5 can be removed.
In order to increase the strength of the protector 24, a reinforcing frame 25 is provided to connect the protector 24, and the lowering range of the rear end of the sensor 11a can be covered by an inexpensive and simple structure in which the reinforcing frame 25 is also used. Since the stopper is provided, the descending range of the sensor 11a, which is pressed downward due to contact with the ground when the aircraft moves backward, can be restricted with its front end and rear end supported. Compared to the conventional structure that regulates the descending range of the sensor 11a by catching only the front end of the sensor 11a, the descending range of the sensor 11a is regulated in a manner that suppresses deformation and damage to the sensor 11a. It has become possible.

As a result, a reaper that can be used satisfactorily for a long period of time has been obtained, while solving the problem of both government and public records with an inexpensive and simple structure in which the protector reinforcing frame 26 also serves as a stopper.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the reaper according to the present invention, and show the first embodiment.
The figure is a plan view of the combine, Figure 2 is a side view of the front part of the combine, Figure 3 is a diagram of the relationship between the rainforest body and the control valve, Figure 4 is a plan view of the rainforest body attachment part, and Figure 5 is a side view of the front part of the combine. FIG. 6 is a partially cutaway plan view of another embodiment, and FIG. 6 is a perspective view of another embodiment. 5... Reaping processing device, lla... Sensor, 24... Protector 25...
・Reinforcement frame, Y... Horizontal axis center.

Claims (1)

[Scope of utility model registration request] A cutting height control sensor 11 is installed on the side of the cutting processing device 5.
A is provided with a protector 24 that covers at least the front and lateral outer sides of the sensor 11a, and a protector 24 is provided that covers at least the front and lateral outside of the sensor 11a. A reaping machine characterized in that a reinforcing frame 25 connecting the end edge and the reaping processing device 5 is also used as a stopper for receiving and regulating the descending range of the rear end of the sensor 11a.