KR20210000439A - Device for keep the depth of digging for peanut harvest machine - Google Patents

Abstract

The present invention proposes a peanut harvester that can control the depth of digging. According to the present invention, an apparatus comprises: a digging frame (20) supported rotatably for a predetermined section with respect to a driving body (10) about a support shaft (28) and having a digging blade (22) installed at an end thereof; a wheel frame having an upper and lower wheel frame (44) rotatably supported about a support shaft (48) with respect to the digging frame (20); a sensing wheel (40) elastically supported so as to be movable up and down for a predetermined section with respect to the upper and lower wheel frame (44); a sensing means for sensing a change in the vertical height of the sensing wheel (40); and a hydraulic cylinder supported by the digging frame (20) and capable of adjusting the height of the sensing wheel (40) by rotating the wheel frame around the support shaft (48).

Description

Device for keep the depth of digging for peanut harvest machine

The present invention relates to a peanut harvester, and more particularly, to a device for adjusting the excavation depth of a peanut harvester configured to maintain the oyster depth set to a certain depth during the working process in order to collect peanuts from the cultivation area.

Korean Patent Application No. 10-2016-0079010 may be cited as a prior patent document for a peanut harvester. Although the technical content disclosed by this prior patent document is capable of controlling the depth of oyster for harvesting peanuts, it is judged that it is somewhat unsatisfactory in terms of maintaining the set depth of oyster.

An object of the present invention is to provide a peanut harvester capable of automatically adjusting the depth of oyster while driving in an automatic running type peanut harvester configured to harvest peanuts while driving.

The fact that the depth of the oyster can be automatically adjusted while driving in this way means that in reality, the efficiency of harvesting peanuts can be maximized.

The apparatus for adjusting the excavation depth of the peanut harvester of the present invention comprises: a gulch frame supported by a gulchwi blade installed at an end portion and supported so as to be rotatable for a certain section about a support shaft with respect to a traveling body; A wheel frame having upper and lower wheel frames rotatably supported about a support shaft with respect to the gulch frame; A sensing wheel elastically supported so as to move up and down a predetermined section with respect to the upper and lower wheel frames; A sensing means for detecting a change in height of the sensing wheel; And it is supported by the gulch frame, by rotating the wheel frame around the support shaft, it is composed of a hydraulic cylinder capable of adjusting the height of the sensing wheel.

And according to an embodiment of the sensing means of the present invention, the sensing wheel is installed at the lower end and inserted into the inside of the upper and lower wheel frames, and the wheel support link is installed inside the upper and lower wheel frames to elastically support the wheel support link. It consists of a spring, an interlocking protrusion installed on the wheel support link and protruding to the outside through a slot formed in an up-down direction on the upper and lower wheel frames and interlocking with the sensing wheel, and a potentiometer that detects the vertical movement of the interlocking protrusion.

According to the present invention having the configuration as described above, it can be seen that the gulchwi blade of a peanut harvester for harvesting peanuts in the ground while autonomously driving can always maintain a constant depth of the ground. Therefore, it is expected to have the effect of harvesting peanuts most efficiently.

1 is a right side view of the present invention peanut harvester.
Figure 2 is a left side view showing a partial enlarged view of the present invention peanut harvester.
Figure 3 is a partial enlarged view of the present invention peanut harvester.
Figure 4 is a perspective view of a partially enlarged view of Figure 2;
Figure 5 is an enlarged end view of the present invention peanut harvester.
Figure 6 is a block diagram for explaining the depth control of the present invention peanut harvester.

Next, based on the illustrated embodiment, the present invention will be described in more detail.

As shown in Figs. 1 and 2, the peanut harvester of the present invention includes a driving body 10 having a driving source capable of driving, and an excavation frame 20 supported by the driving body 10, have. The running body 10 itself having a driving source such as an engine, etc., can be said to be known, and the running unit 12 configured of, for example, a crawler installed for running, and an operating device for overall control of the harvester body It includes a driving unit 14 is installed.

Here, the excavation frame 20 is supported so as to be able to rotate at a certain angle around the support shaft 28 with respect to the traveling body 10. And the driving unit 14 is provided with a variety of operating devices for the overall driving and oyster control of the peanut harvester, for example, the peripheral speed lever and steering control to control the forward and backward movement of the driving body 10 through the control of HST. For example, a steering lever (power steering lever) is mentioned.

In addition, the peanut harvester of the present invention is provided with various sensors (potentiometers) and a driving device (hydraulic cylinder) driven by these sensors in order to control the depth of the oyster. First, the peanut harvester of the present invention is provided with a sensing means for detecting the state of the peripheral speed lever for controlling the operation related to the forward or backward movement of the traveling body 10. As shown in FIG. 3, a first detection sensor Sa for detecting the state of the peripheral speed lever 18 installed in the driving unit 14 is installed.

The peripheral speed lever 18 installed in the driving unit 14 is capable of performing forward and backward motions in the forward and backward directions. The rotational movement of the peripheral speed lever 18 is made around the first support shaft 18c, and the peripheral speed lever 18 rotates at regular intervals in the front-rear direction while being connected to the support bracket 18a. In addition, the first detection sensor Sa is constituted by, for example, a potentiometer, and may be referred to as a first potentiometer Sa.

The fork Sp connected to the first potentiometer Sa is configured to rotate by the interlocking protrusion 18b installed on the support bracket 18a on which the peripheral speed lever 18 is supported. This fork (Sp) is currently sold in a state assembled to a conventional potentiometer, and the first potentiometer (Sa) can know the position of the current peripheral speed lever 18 according to the rotation angle of the fork (Sp). Here, being able to know the position of the peripheral speed lever 18 means that it is possible to know whether the peripheral speed lever 18 is in a forward or reverse state.

As shown in the enlarged view of Figure 2 and Figure 4, the peanut harvester of the present invention is equipped with a second detection sensor (Sb). The second detection sensor Sb is for measuring the rotation angle of the gulch frame 20 that is supported so as to be rotatable around the support shaft 28 in a certain range. At the front end of the gulch frame 20, a gulchwi blade 32 is installed, and the second detection sensor Sb measures the inclination of the gulch frame 20 to ultimately determine the position of the gulchwi blade 32. It can be said that it is for judgment.

In the illustrated embodiment, the second detection sensor Sa is composed of a potentiometer, and thus may be referred to as a second potentiometer. As can be seen from the enlarged views of FIGS. 1 and 2, the second potentiometer (Sb) senses the rotation of the gulch frame 20 with the support shaft 28 as the center, and a part of the gulch frame 10 The other end of the interlocking link 26 that is connected and interlocked with (29) is coupled between the forks (Sp) of the potentiometer (Sa). Accordingly, the rotation angle of the pull frame 10 centered on the support shaft 28 is transmitted to the potentiometer Sa through the interlocking link 26.

And according to the present invention, as shown in FIG. 5, a sensing wheel 40 and a gulch blade 22 are installed at the tip of the gulch frame 20. In actual work, while the gulchwi blade 22 is driven in a state where it digs into the ground to a certain depth, the detection wheel 40 rolls on the ground. This sensing wheel 40 is connected to the lower end of the wheel support link 42, the wheel support link 42 is inserted into the interior of the upper and lower wheel frame 44, the built-in upper and lower wheel frame 44 It is installed to maintain a constant height at all times by a spring. That is, the sensing wheel 40 is movable in a certain section in the vertical section, and is elastically supported to maintain a constant height (reference height) by a spring.

In the present invention, the wheel frames 44 and 46 supporting the sensing wheel 40 are supported so as to be rotatable about the support shaft 48 with respect to the gulch frame 20, and the left and right wheel frames ( 46) and the upper and lower wheel frames 44 extending in the vertical direction from the front end of the left and right wheel frames 26. The wheel frames 44 and 46 of the present invention are installed to be rotatable about the support shaft 48 with respect to the gulch frame 20, and the wheel support link 42 is a vertical wheel that can move in the vertical direction among the wheel frames. It can be seen that the frame 44 is elastically supported by a built-in spring to maintain a constant height inside the frame 44.

In the illustrated embodiment, the slot 45 is formed in the vertical direction in the upper and lower wheel frame 44, and the interlocking protrusion 47 installed on the wheel support link 42 protrudes to the outside through the slot 45 It is configured to be coupled to the fork Sp of the third detection sensor (third potentiometer) Sc. Therefore, when the wheel support link 42, which is elastically supported so that a predetermined position (reference position) can be maintained by a spring inside the upper and lower wheel frames 44, moves upward or downward from the reference position, the third potentiometer (Sc) becomes possible to detect this.

Next, according to the present invention, a look at the hydraulic cylinder installed in the peanut harvester. As shown in FIG. 1, the gulch frame 20 is rotatably supported around the support shaft 28, and can be moved by the first hydraulic cylinder Ca. That is, the lower end is supported by the traveling body 10, and the rig frame 20 can be rotated around the support shaft 28 by the first hydraulic cylinder (Ca) in which the operating piston is connected to the rig frame 20. Is configured to do.

In addition, as described above, the first potentiometer Sa can detect the forward or reverse state of the peripheral speed lever. For the interlocking control between the first potentiometer Sa and the first hydraulic cylinder Ca, for example, when the state of the peripheral speed lever is sensed by the first potentiometer, that is, when the reverse of the driving body is detected, the controller 1 The hydraulic cylinder (Ca) is controlled to raise the rig frame. This control can be said to be substantially to prevent damage to the excavation part in the ground due to unexpected motion while the reversing is performed.

And, as can be seen with reference to FIG. 5, a second hydraulic cylinder Cb is installed so that the sensing wheel 40 can also move in the vertical direction. The upper end of the second hydraulic cylinder Cb is connected to and supported by the rig frame 20, and the operating pistons of the second hydraulic cylinder Cb are pin-connected 46a to the left and right wheel frames 46. Accordingly, it can be seen that when the piston of the second hydraulic cylinder Cb is extended, the sensing wheel 40 descends, and when the piston of the second hydraulic cylinder Cb is contracted, the sensing wheel 40 rises. This second hydraulic cylinder Cb is installed so that the sensing wheel 40 can always maintain the reference position, as will be described later.

Next, based on the above-described configuration, the overall operation of the adjusting device of the present invention will be described with reference to FIG. 6.

First, before the actual work of the peanut harvester begins, let's look at the initial settings. Preparatory work is carried out in front of a certain distance (for example, 1-2m) from the place where the actual harvesting work is in progress in the peanut cultivation area (head bank). That is, since the lower end of the gulch frame 20 is lifted upward while the peanut harvester is moving, the gulch frame 20 must be controlled in a ready state to perform the actual work upon arrival at the cultivation site.

To this end, the operator manipulates the driver's seat manipulation device 110, which may be possible by touching the steering lever once, for example. Or, of course, it could be replaced by performing another lever or button on the driver's seat. And when the driver's seat operation device 110, for example, a steering lever is simply operated, the control unit 110 manipulates the first hydraulic cylinder Ca so that the gulch blade 22 contacts the ground of the cultivation site. 20) to descend.

In order to perform the actual harvesting operation, the peanut harvester must start running and the gulchwi blade 22 must go from the ground to the ground at a certain depth. And the current location of the peanut harvester is in front of a certain distance (for example, 1-2m) from the point where peanuts are actually grown. In order to start driving at this current position, the operator operates the peripheral speed lever 120. Here, the peripheral speed lever in the peanut harvester is related to the angle and rotational speed of the swash plate in HST, as known in the prior art mentioned above, and a lever capable of controlling the forward and backward movement of the traveling body 10 and the speed. to be.

When the operator manipulates the peripheral speed lever 120, the first potentiometer Sa described above can detect that the traveling body 10 is moving forward. The detection signal of the first potentiometer Sa is transmitted to the control unit 100. In addition, it is natural that the operation signal of the peripheral speed lever 120 is directly transmitted to the control unit 100 so that other signal processing (engine and HST, etc.) for actual driving is also performed.

In this way, while traveling a certain distance (for example, 1-2m), the control unit 100 commands the first hydraulic cylinder Ca to lower the rig frame 20 to a predetermined position. Here, that the control unit 100 controls the first hydraulic cylinder Ca means that the hydraulic cylinder Ca controls the hydraulic cylinder Ca to execute the desired operation by electrically controlling the oil entry port to the first hydraulic cylinder Ca. to be.

And when the driving body 10 travels a certain distance (for example, 1-2m), the excavation blade 22 enters the ground to a preset depth. Here, the depth at which the excavation blade 22 enters the ground will ultimately be determined by the inclination angle of the excavation frame 20, and the inclination angle of the excavation frame 20 is a value previously stored in the control unit 110. Accordingly, the first hydraulic cylinder Ca inclines the excavation frame 20 until the value sensed by the second potentiometer Sb reaches a predetermined inclination.

In this way, when the excavation frame 20 has a predetermined inclination, the excavation blade 22 also reaches a predetermined depth. And in this state, the second hydraulic cylinder Cb operates so that the sensing wheel 40 can be set to the reference position. That is, by the operation of the second hydraulic cylinder Cb, the upper and lower wheel frames 44 and the left and right wheel frames 46 rotate around the support shaft 48, so that the interlocking protrusion 47 is inside the slot 45. It is to go to the center position. The position of the interlocking protrusion 47 may be referred to as a reference position, and this reference position may be equally applied to the sensing wheel 40.

This state can be said to be ready to perform actual peanut harvesting, which can be said to be a state in which the setting for actual harvesting is completed. This state is maintained even when the peripheral speed lever 120 continues to travel, and the peripheral speed lever 120 is in a neutral state, so that the excavation blade 22 may maintain the standby state while maintaining the current underground depth. have.

This state should be able to be set just before the actual peanut cultivation, after which the actual running and peanut harvesting proceeds. Next, the peanut harvester of the present invention harvests peanuts. As described above, the harvesting proceeds while driving in a state where the gulchwi blade 22 has entered a certain depth into the ground. However, the depth of the ground where the gulchwi blade 22 is located may vary depending on the slope of the cultivation area and the condition of the soil of the cultivation area. However, changing the depth of the gulchwi blade 22 by this external condition may hinder efficient peanut harvesting.

That is, in the operation of harvesting peanuts, it can be said that it is natural that the gulchwi blade 22 is more efficient to maintain a predetermined depth. Accordingly, in the present invention, the depth control of the excavation blade 22 is performed so that the excavation blade 22 can have a predetermined depth with respect to the running of the driving body 10.

As described above, the sensing wheel 40 always has a predetermined reference position with respect to the upper and lower wheel frames 44 as the wheel support links 42 are elastically supported by a spring inside the upper and lower wheel frames 44. have. This reference position can be said to be, for example, that the interlocking protrusion 47 connected to the wheel support link 42 is located at the center of the slot 50. And such a reference position of the sensing wheel 40, since the interlocking protrusion 47 installed on the wheel support link 42 is fitted in the fork Sp of the third potentiometer Sc, the control unit 100 can always detect it. I can.

And, due to the external environment according to the driving, the excavation blade 22 can dig deeper than a predetermined depth. When the excavation blade 22 digs into the ground beyond a predetermined reference depth, the detection wheel 40 in contact with the ground and in cloud contact is bound to rise relatively high. That is, as the distance between the excavation blade 22 and the sensing wheel 40 increases, the sensing wheel 40 rises, and the lifting of the sensing wheel 40 is an interlocking protrusion inside the upper and lower wheel frames 44. (47) will be raised.

When the interlocking protrusion 47 rises, the third potentiometer Sc senses this and sends a signal to the control unit 100. Upon receiving the signal that the sensing wheel 40 has risen through the third potentiometer Sc, the control unit 100 controls the first hydraulic cylinder Ca so that the rig frame 10 rises. When the gulchwi frame 10 is raised, the gulchwi blade 22 is actually raised as well, and the rise of the gulchwi blade 22 is sensed by the third potentiometer Sc.

The detection value of the third potentiometer Sc, which detects the rise of the gulch blade 22 through the detection wheel 40, is fed back to the control unit 100 again, while the detection wheel 40 is brought to the reference position. When [when the interlocking protrusion 47 comes to the reference position], the control unit 100 controls the first hydraulic cylinder Ca to stop the drilling frame 20 by a detection signal of the third potentiometer Sc. .

The embodiment described above has been described for the case where the excavation blade 22 descends deeper than the reference depth. However, even when the excavation blade 22 rises to a shallower depth than the reference depth due to the external environment, it is natural to perform the same control as described above, and this control allows the excavation blade 22 to maintain the reference depth. It can be said that it is controlled to be able to do.

In summary, such feedback control, in order to ensure that the sensing wheel 40 always maintains the reference position, the control unit 100 controls the first hydraulic cylinder Ca using a signal transmitted from the third potentiometer Sc. By controlling, it can be seen that the gulch blade 22 is controlled to run at a predetermined depth (reference depth).

Within the scope of the basic technical idea of the present invention as described above, it is natural that various modifications will be possible for a person skilled in the art. And the scope of protection of the present invention should be interpreted on the basis of the appended claims.

10 ..... Driving body
20 ..... gulch frame
26 ..... Linked Link
28 ..... support shaft
40 ..... sensing wheel
42 ..... Wheel support link
44 ..... upper and lower wheel frame
46 ..... Left and right wheel frames
47 ..... interlocking protrusion
48 ..... support shaft

Claims (2)

A gulch frame 20 provided with a gulchwi blade 22 installed at an end thereof and supported so as to be rotatable for a certain section about the support shaft 28 with respect to the traveling body 10;
A wheel frame having upper and lower wheel frames 44 that are rotatably supported about the support shaft 48 with respect to the gulch frame 20;
A sensing wheel 40 elastically supported so as to move up and down a predetermined section with respect to the upper and lower wheel frames 44;
Sensing means for detecting a change in the vertical height of the sensing wheel 40; And
A device for adjusting the excavation depth of a peanut harvester comprising a hydraulic cylinder that is supported by the gulch frame 20 and is capable of adjusting the height of the sensing wheel 40 by rotating the wheel frame around the support shaft 48.
The method of claim 1, wherein the sensing means,
The sensing wheel 40 is installed at the lower end and the wheel support link 42 inserted into the upper and lower wheel frames 44 and the upper and lower wheel frames 44 are installed inside the wheel support link 42 to elastically A spring supported by the wheel support link 42 and protruding to the outside through a slot formed in the vertical direction on the upper and lower wheel frames 44, the interlocking protrusion 45 interlocking with the sensing wheel 40, and interlocking A device for adjusting the depth of excavation of a peanut harvester consisting of a potentiometer that detects the vertical movement of the protrusion 45.

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