JPH0513A - Operating structure of reaper section of reaper - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is a contactless ground-height detection device (ultrasonic sensor) for a mowing part that is attached to a body so as to be able to move up and down.
To provide a reaper operating structure for a reaper, in which the reaper is automatically attached and disengaged as the reaper moves up and down based on detection information from the detector. With the goal. According to the present invention, a contactless ground-height detection device 9 for a mowing section, which is attached to a machine body so as to be able to move up and down, and an actuator 13 for operating a mowing section clutch 10, are provided. Based on the information, the reaper unit clutch 10
However, it is characterized in that a control mechanism 16 for operating the actuator 13 is provided so that the height of the mowing unit above the ground is equal to or less than a set value and the height is higher than the set value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reaper operating structure for a reaper having a reaper mounted on a machine body so as to be vertically movable.

[0002]

2. Description of the Related Art In the above reaping machine, when the reaping section is lowered to the working level, the reaping section clutch is automatically engaged and operated, and when the reaping section is raised to the non-working level, the reaping section is operated. In order to enable the clutch to be automatically disengaged, a device for detecting the height of the reaping unit with respect to the aircraft is provided, and the clutch is operated based on the information from the device for detecting the aircraft height. Therefore, as shown in FIG. 3, the work on the shore is performed without forming a headland because the shore is relatively low, and the rear side of the traveling device rides on the shore and the aircraft is lowered frontward. Or when working in a wetland while operating a controlled climate that keeps the cutting height constant,
When the front part of the traveling device enters the recess of the cultivator and the machine lowers forward, the mowing part is artificially lowered so that it becomes a working level for the field scene, and the mowing part is automatically raised. The machine body level is higher than the setting work level of the clutch automatic control, and the clutch may not be operated or disengaged, and the automatic clutch control may not be used or the work may be inconvenient. Therefore,
For example, as disclosed in Japanese Utility Model Application Laid-Open No. 53-33636, a contact-type contactor which rubs the ground surface on the lower part of the mowing part and rotates to detect a change in the size of the isolation between the mowing part and the ground surface. A ground-height detection sensor is provided, and when the isolation dimension is less than or equal to a predetermined amount, the cutting clutch lever is towed and rotated, and a connecting operation is performed using a wire so as to change to a position where the cutting clutch should be engaged. Therefore, the clutch operation was not affected by the ground posture of the aircraft.

[0003]

As described above, when the contact type ground height detecting sensor is used as the ground height detecting means of the mowing section, when the field is a soft land such as a wet field,
Not only can the contact surface be buried and the accurate ground height cannot be detected, but the rotation of the sensor can be used to connect the cutting clutch lever with a wire, so that reliable connection operation is possible in the case of soft ground. There was a problem that I could not. Also, if the grounding sensor is too long, it is easily damaged, etc., and the length of the sensor is limited.Therefore, the mowing section clutch can only be turned on and off at a relatively low position. There is a problem that the cutting will be cut and the result will be repeated over and over, adversely affecting the durability of the machine.Furthermore, if the cutting unit stops just by slightly raising it, the rotating unit of the cutting unit There is also a problem that it is difficult to carry out inspections and maintenance while turning. The present invention has been made in view of the above situation, and its purpose is to detect an accurate height above ground regardless of the field conditions,
To ensure that the reaper clutch can be operated.

[0004]

The characteristic structure of the operating structure of the reaper of the reaper according to the present invention is a non-contact type ground-height detecting device for detecting the ground-height of the reaper attached to the machine body so as to be vertically movable. With the provision of an actuator for operating the mowing section clutch, based on the detection information from the ground height detecting device, the mowing section clutch is turned on when the ground level of the mowing section is below a set value, In addition, a control mechanism for activating the actuator is provided so that the mowing section clutch is disengaged when the ground level of the mowing section is larger than the set value.

[0005]

[Function] When the reaper is at a low level for work, it enters and
In addition, the cutting unit clutch is automatically operated based on the detection result of the ground height detection device so that the cutting unit will be turned off when it is at a high level for non-working. Can be forced. Moreover, since the ground height detecting device is a non-contact type, it is possible to detect an accurate ground height even on a soft land such as a wet field in a field, and based on the detection information of the ground height detecting device, an actuator Since the reaper section clutch is operated by the driving force of the above, the reaper section clutch is reliably operated.

[0006]

As described above, since the reaping section clutch can be operated accurately on the basis of the detection result of the ground height detecting device, the reaping section clutch can be operated accurately regardless of the field condition, and the work can be performed efficiently. became. Further, since it is a non-contact type ground height detecting device, there is no need to use a long grounding sensor as in the case of a contact type ground height detecting device, and it is possible to adjust The set value can be set to a desired height, and the reaping work can be satisfactorily performed without the reaper clutch being disengaged during the reaping work in the normal reaping height control range.

[0007]

EXAMPLES Next, examples of the present invention will be described. As shown in FIG. 1, a crawler traveling device 1, a threshing unit 2, and a driving unit 3
At the front of the self-propelled machine having the like, a mowing unit 7 including a raising device 4 and a mowing device 5 for the planted grain culm, and a conveying device 6 for supplying the mowing grain culm to the threshing feed chain 2a.
Is combined with the hydraulic cylinder 8 so that it can be freely swung up and down around the axis P to form a combine.

As shown in FIG. 1, an ultrasonic transmitter 9a and an ultrasonic receiver 9b are attached to the cutting unit 7 so as to be able to move up and down, and the ultrasonic wave is transmitted from the transmitter 9a to the receiver 9b. Mowing unit 7 based on the time required to receive
The ground height detecting device 9 is configured to detect the ground height of.

Then, as shown in FIG.
To the rocking operation lever 11 of the belt tension type clutch 10 with respect to the electromagnetic solenoid 1 via the spring 12.
3 is interlocked and the power supply to this solenoid 13 is turned on and off to operate the spring 12 to move the lever 1
1 is configured so that clutch operation can be performed by switching between a state in which 1 is energized to the clutch engaged position ON and a state in which it is energized to the clutch disengaged position OFF, and the ground height detection device 9 and the clutch 10 are engaged. Each of the setting devices 14 that can be operated to change the height of the cutting unit 7 to be grounded is connected to the operation circuit 15 of the solenoid 13 by a control mechanism 16.
It is linked via.

In order to configure the control mechanism 16,
Port 16a for inputting signals from each of the detection device 9 and the setting device 14, based on information from the input port 16a, the detection height by the detection device 9 and the setting height by the setting device 14 are compared, Only when it is determined that the detected height is less than or equal to the set height, the control arithmetic unit 16b that outputs the signal to operate the clutch 10 and the port 1 that outputs the signal from the control arithmetic unit 16b to the operation circuit 15
6c, the clutch 10 is engaged when the ground height of the mowing unit 7 is less than or equal to the set value, and the clutch 10 is disengaged when the ground height of the mowing unit 7 is greater than the set value. The clutch 10 is automatically operated based on the information from the ground height detection device 9 and the setting device 14,
When the reaper 7 is lowered to the working level, the reaper 7 is automatically driven, and when the reaper 7 is raised to the non-working level, the reaper driving is automatically stopped. As shown in FIG. 3, regardless of the level of the mowing unit 7 with respect to the machine body, such as when the machine body is in the front-lowering posture, as long as the ground level is at the working level, the clutch 1
0 is entered and operated.

The mowing section clutch can be changed to various types such as an occlusal type. As the control mechanism, a configuration other than a microcomputer such as a logic circuit may be adopted. INDUSTRIAL APPLICABILITY The present invention can be applied to a reaper for reaping various stem culms other than rice barley.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a block diagram of a control system

FIG. 3 is an explanatory view of a body tilted state.

[Explanation of symbols]

 7 Mowing part 9 Ground height detecting device 10 Mowing part clutch 13 Actuator 16 Control mechanism

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[Procedure amendment]

[Submission date] September 26, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of the Invention] Operation structure of a mowing part of a mowing machine

What is claimed is: 1. A non-contact type ground-height detecting structure for a mowing machine, wherein a mowing unit (7) is attached to a machine body so that it can be moved up and down freely. A height detecting device (9) and an actuator (13) for operating the mowing section clutch (10), and based on the detection information from the ground height detecting apparatus (9), the mowing section (7) Ground height is set
The reaper unit clutch (10) is equal to or less than the set value
And the height of the mowing part (7) above the ground level is larger than the set value, the control mechanism () for operating the actuator (13) so that the mowing part clutch (10) is disengaged. 16) The structure for operating the mowing part of the mowing machine.

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reaper operating structure for a reaper having a reaper mounted on a machine body so as to be vertically movable.

[0002]

2. Description of the Related Art In the above reaping machine, when the reaping section is lowered to the working level, the reaping section clutch is automatically engaged and operated, and when the reaping section is raised to the non-working level, the reaping section is operated. In order to enable the clutch to be automatically disengaged, a device for detecting the height of the reaping unit with respect to the aircraft is provided, and the clutch is operated based on the information from the device for detecting the aircraft height. to have been, Figure
As shown in Fig. 3 , when the work on the shore is performed without forming a headland because the shore is relatively low, and the aircraft is lowered to the front due to riding on the shore behind the traveling device, When operating the wetland while operating the control mechanism that keeps the value constant, when the front part of the traveling device enters the recess of the cultivator and the machine lowers to the front, the mowing part becomes the working level for the field scene. Even if it is artificially lowered or automatically raised, the level of the cutting unit against the machine is higher than the setting work level of the clutch automatic control, and the clutch is not operated or disengaged, and the automatic clutch control cannot be used. However, there were some inconveniences that I could not work. Therefore,
For example, as disclosed in Japanese Patent Application Laid-Open No. 55-41 , a contact-type contacting device that rubs against the ground surface at the lower part of the mowing part and rotates to detect a change in the size of the isolation between the mowing part and the ground surface. A ground-height detection sensor is provided, and when the isolated size falls below a predetermined amount, the mowing switch is turned on and the mowing section drive clutch is turned on.
That make it in, the clutch operation has been so as not to be affected by the ground attitude of the aircraft.

[0003]

[SUMMARY OF THE INVENTION] As described above, when a ground height detecting sensor of a contact type as the detection means of ground height of the reaper, when field is soft weak areas are contact surfaces Since it was buried, the height to ground could not be detected accurately, and the culm was cut by the cutting unit.
Even if the cutting height of the
It is buried in the ground, the clutch of the reaper is not engaged, and the culm is cut.
A serious reaping problem that the aircraft progresses without being
There was a problem that occurred. Also, like easily broken and ground sensor is too long, since the length of the sensor is limited, it can not switching on and off of only reaper clutch at a relatively low position, this
Has the drawback of encouraging the above problems.
Moreover , if the mowing unit stops only by slightly raising the mowing unit, there is a problem that it is difficult to perform inspection, maintenance, etc. while rotating the rotating part of the mowing unit. The present invention has been made in view of the above circumstances, and an object thereof is to reliably operate a reaper clutch by detecting an appropriate height above ground regardless of field conditions. It is in.

[0004]

The characteristic structure of the operating structure of the reaper of the reaper according to the present invention is a non-contact type ground-height detecting device for detecting the ground-height of the reaper attached to the machine body so as to be vertically movable. And, provided with an actuator for operating the mowing unit clutch, based on the detection information from the ground height detection device, the mowing unit clutch is that the ground height of the mowing unit is less than or equal to a set value. It is a point that a control mechanism for operating the actuator is provided so that the mowing section clutch is disengaged when the ground level of the mowing section is larger than the set value.

[0005]

[Function] When the reaper is at a low level for work, it enters and
In addition, the cutting unit clutch is automatically operated based on the detection result of the ground height detection device so that the cutting unit will be turned off when it is at a high level for non-working. Can be forced. Moreover, since the ground height detection device is a non-contact type, it is possible to detect an accurate ground height even if the field is a soft land such as a wet field, and based on the detection information of the ground height detection device, the actuator Since the reaper section clutch is operated by the driving force of the above, the reaper section clutch is reliably operated.

[0006]

Therefore, the operation of the reaper section clutch is a non-contact type.
Since it can be accurately performed based on the detection result of the ground height detection device, even if the field is weak, the cutting unit can reach the set height.
When it descends, the reaping section clutch will be securely engaged and operate.
Even if the cutting height of the grain culm is an appropriate cutting height, the cutting section
The clutch will not engage, and the aircraft will proceed without the grain culms being cut.
There will be no serious reaping mistakes
In addition, good harvesting work can be performed. further,
Since it is a non-contact type ground height detector, there is no need to use a long grounding sensor as in the case of a contact type ground height detector, and the cutting range is within the normal cutting height control range. It is possible to satisfactorily perform the mowing work without the partial clutch being disengaged during the mowing work.

[0007]

EXAMPLES Next, examples of the present invention will be described. As shown in FIG. 1, a crawler traveling device 1, a threshing unit 2, and a driving unit 3
At the front of the self-propelled machine having the like, a mowing unit 7 including a raising device 4 and a mowing device 5 for the planted grain culm, and a conveying device 6 for supplying the mowing grain culm to the threshing feed chain 2a.
Is combined with the hydraulic cylinder 8 so that it can be freely swung up and down around the axis P to form a combine.

As shown in FIG. 1, an ultrasonic transmitter 9a and an ultrasonic receiver 9b are attached to the cutting unit 7 so as to be able to move up and down, and the ultrasonic wave is transmitted from the transmitter 9a to the receiver 9b. Mowing unit 7 based on the time required to receive
The ground height detecting device 9 is configured to detect the ground height of.

Then, as shown in FIG.
To the rocking operation lever 11 of the belt tension type clutch 10 with respect to the electromagnetic solenoid 1 via the spring 12.
3 is interlocked and the power supply to this solenoid 13 is turned on and off to operate the spring 12 to move the lever 1
1 is configured so that clutch operation can be performed by switching between a state in which 1 is energized to the clutch engaged position ON and a state in which it is energized to the clutch disengaged position OFF, and the ground height detection device 9 and the clutch 10 are engaged. Each of the setting devices 14 that can be operated to change the height of the cutting unit 7 to be grounded is connected to the operation circuit 15 of the solenoid 13 by a control mechanism 16.
It is linked via.

In order to configure the control mechanism 16,
Port 16a for inputting signals from each of the detection device 9 and the setting device 14, based on information from the input port 16a, the detection height by the detection device 9 and the setting height by the setting device 14 are compared, Only when it is determined that the detected height is less than or equal to the set height, the control arithmetic unit 16b that outputs the signal to operate the clutch 10 and the port 1 that outputs the signal from the control arithmetic unit 16b to the operation circuit 15
6c, the clutch 10 is engaged when the ground height of the mowing unit 7 is less than or equal to the set value, and the clutch 10 is disengaged when the ground height of the mowing unit 7 is greater than the set value. The clutch 10 is automatically operated based on the information from the ground height detection device 9 and the setting device 14,
When the reaper 7 is lowered to the working level, the reaper 7 is automatically driven, and when the reaper 7 is raised to the non-working level, the reaper driving is automatically stopped. As shown in FIG. 3, regardless of the level of the mowing unit 7 with respect to the machine body, such as when the machine body is in the front-lowering posture, as long as the ground level is at the working level, the clutch 1
0 is entered and operated.

The mowing section clutch can be changed to various types such as an occlusal type. As the control mechanism, a configuration other than a microcomputer such as a logic circuit may be adopted. INDUSTRIAL APPLICABILITY The present invention can be applied to a reaper for reaping various stem culms other than rice barley.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of the front part of the combine.

FIG. 2 is a block diagram of a control system

FIG. 3 is an explanatory view of a body tilted state.

[Explanation of Codes] 7 Mowing Unit 9 Ground Height Detection Device 10 Mowing Unit Clutch 13 Actuator 16 Control Mechanism

Claims (1)

What is claimed is: 1. A non-contact type ground-height detecting structure for a mowing machine, wherein a mowing unit (7) is attached to a machine body so that it can be moved up and down freely, and which detects the ground-height of the mowing unit (7). A height detecting device (9) and an actuator (13) for operating the mowing section clutch (10), and based on the detection information from the ground height detecting apparatus (9), the mowing section (7) If the ground level is less than or equal to the set value, the mowing section clutch (10) is turned on, and if the ground level of the mowing section (7) is greater than the set value, the mowing section clutch (10) operates. A reaper operating structure for a reaper, which is provided with a control mechanism (16) for operating the actuator (13) so as to cut.