JPS646004Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ground work device, and its purpose is to enable rolling operation of the ground work device relative to the vehicle body with simple operation and accurately to a desired posture. It is in.

More specifically, in order to be able to roll the ground work device to a desired posture relative to the vehicle body when working on sloped ground near the edge of a ridge, conventionally, for example, the ground work device must be rolled relative to the vehicle body. A drive mechanism is provided, and an operating tool for operating the drive mechanism is provided in a state linked to the drive mechanism so as to operate the drive mechanism only while switching from an operation stop position to an operation operation position. There is something.

In this case, in order to perform a rolling operation on the ground work device, first operate the operating tool to the activation operating position, and when the ground work device reaches the desired rolling posture, immediately return the operating tool to the deactivation position. However, as soon as the ground work device reaches the desired rolling posture, the operator must immediately return the operating tool to the stop position, so the operator must monitor the ground work device during the rolling operation. There is a hassle of having to keep doing it,
In addition, an unskilled person cannot return to the stop position at an appropriate timing, and therefore cannot accurately achieve a desired rolling posture.

The configuration of the present invention is to provide a drive mechanism for rolling the ground work device relative to the vehicle body, provide a device to detect the rolling posture of the work device relative to the vehicle body, and change the appropriate posture of the rolling posture of the work device relative to the vehicle body. an attitude control mechanism that automatically operates the drive mechanism based on information from both devices so that the attitude detected by the rolling attitude detection device becomes the attitude set by the artificial setting device; Further, a detection device is provided for detecting an inclination angle of the ground work device to the ground, and the drive mechanism is automatically operated based on the detection result of the detection device to maintain the ground work device in a horizontal attitude to the ground. A rolling control mechanism is configured by linking a detection device for detecting the angle of inclination to the ground with the attitude control mechanism, and further includes a switching mechanism for selectively switching the operation of the attitude control mechanism and the rolling control mechanism. characterized by something.

Next, the effects of the proposed structure will be described.

In other words, since the attitude control mechanism allows the ground work equipment to automatically roll into the attitude set by the manual setting device, the worker simply sets the desired rolling attitude by using the manual setting device. In the end, it became possible to roll the ground work device accurately to a desired posture with a simple operation.

In this way, by achieving automation, it is easy to operate the ground work device to a specific posture with respect to the vehicle body, and the rolling control mechanism is linked to this posture control mechanism via a switching mechanism. When working from the edge of the ridge to the center of the field, simply operating the switching mechanism allows the ground working device to be maintained in a horizontal position relative to the ground, regardless of the left/right tilting of the vehicle body, allowing for good work. Moreover, when performing ridge work in a different location from the above after finishing work in the center by reciprocating, etc., the switching mechanism can be simply switched from the rolling control side to the posture control side, and the ground work device The position can be switched to a preset position relative to the vehicle, making it very easy to use.

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

As shown in FIGS. 1 to 3, a pair of left and right wheels 1 are mounted on the front and rear, and a left and right wheel is connected to a lift cylinder 3 at the rear of the vehicle body, which has a steering section 2 in the center. A rotary tiller 5, which is an example of a ground-working device, is connected to the rotary tiller 5, which is an example of a ground-working device, through a pair of lift arms 4 so as to be able to move up and down.

A rear cover 6 is pivotally connected to the tilling device 5 so as to be freely swingable, and an arm 10 is pivotally connected to the cover 6 via a rod 9 to a frame 8 extending from a rotary frame 7. A first sensor 11 that detects the ground level of the tilling device 5 based on the swing angle of the arm 10 is provided at the pivot portion of the arm 10, and a control box 12 provided in the control section 2 A volume 13 for changing and setting a desired plowing depth and a rotation operating tool 13a for the volume are incorporated. Then, the first sensor 1 is activated so that the tillage depth is maintained at the depth set by the volume 13.
1 and the volume 13, an elevating control mechanism is configured to automatically operate the lift cylinder 3.

Also, a potentiometer 14 is installed to detect the swing angle of the lift arm 4 relative to the vehicle body, and a first position A that brings about a state in which the first sensor 11 is used and a state in which the potentiometer 14 is used are provided. A work selection switch 15 rotatably operable to a second position B, which provides a second position B, is incorporated in the control box 12. Then, with the work selection switch 15 switched to the second position, the height of the tilling device 5 relative to the vehicle body is adjusted to the volume 1.
A position control mechanism is configured to automatically operate the lift cylinder 3 based on information from the volume 13 and the potentiometer 14 so as to maintain the height set at step 3.

To connect the tilling device 5 and the vehicle body, one of the left and right lower links 16, 16 and one of the left and right lift arms 4, 4 are connected by a lift rod 18, and the other lower link 16 and the other lift arm are connected. 4 are interlocked and connected by a lift rod cylinder 19, and the tilling device 5 can be operated in a rolling manner by expanding and contracting the lift rod cylinder 19.

As shown in FIGS. 1 to 3, first and second switches 20a and 20b are provided on the rotary frame 7, which are turned on when the tillage device 5 tilts from a horizontal position to the left or right by a predetermined angle or more. A second sensor 20 is attached as a ground inclination angle detection device. Then, the first and second switches 20
a, 20b are respectively connected to the operating section 2 for extending the electromagnetic control valve 21 for the lift rod cylinder 19.
1a and the shortening operation part 21b, and automatically operates the lift rod cylinder 19 based on the information from the second sensor 20 so as to maintain the tilling device 5 in a horizontal position. 1
A rolling control mechanism is configured.

A stroke sensor 22 is attached to the lift rod cylinder 19 to detect the extension/retraction position of the lift rod cylinder 19 as the rolling attitude of the tilling device 5 relative to the vehicle body based on fluctuations in electric signals. The signals from the volume 23, which changes and sets the posture according to fluctuations in electrical signals, the rotary operating tool 23a corresponding thereto, the stroke sensor 22, and the signal from the volume 23 are compared, and if the difference between the two signals is out of the appropriate setting range. The discrimination circuit 24 operates to energize the operation part 21a or 21b of the valve 21, and rotates between the operation position C where the second sensor 20 is connected to the valve 21 and the operation position D where the discrimination circuit 24 is connected. A selection switch 25 as an operable switching mechanism is incorporated, so that the selection switch 2
In the state in which the discrimination circuit 24 is connected to the valve 21 at step 5, both 2
A second rolling control mechanism is configured to automatically operate the lift rod cylinder 19 based on the information Nos. 2 and 23.

In short, during normal tilling work, the first rolling control mechanism maintains the tilling device 5 in a horizontal position, thereby preventing the tilling depth from changing in the lateral direction regardless of the left and right tilt of the vehicle body, and when tilling work is performed on slopes or pillow land, the second rolling control mechanism operates the tilling device 5 to the desired rolling position relative to the vehicle body, and allows work to be performed while maintaining it in that position.

Further, to configure the second rolling control mechanism, various types of devices such as an electric motor can be used as the rolling operation drive mechanism 19, and various changes can be made to the structure for connecting the ground work device 5 to the vehicle body in a rolling manner. can. Moreover, the rolling attitude detection device 22
Various changes can also be made depending on the connection structure of the ground work device 5.

[Brief explanation of the drawing]

FIG. 1 is a side view of the riding power cultivator, FIG. 2 is a plan view of the control box, and FIG. 3 is a block diagram. 5...Ground work device, 19...Rolling operation drive mechanism, 20...Ground inclination angle detection device, 22
...Rolling attitude detection device, 23...Artificial setting device, 25...Switching mechanism.

Claims (1)

[Scope of utility model registration request] A drive mechanism 19 for rolling the ground work device 5 relative to the vehicle body is provided, a device 22 for detecting the rolling posture of the work device 5 relative to the vehicle body is provided, and an appropriate posture of the rolling posture of the work device 5 relative to the vehicle body is changed and set. An artificial setting device 23 is provided to adjust the driving mechanism 19 based on information from both devices 22 and 23 so that the detected posture of the rolling posture detection device 22 becomes the set posture of the artificial setting device 23.
furthermore, a detection device 20 is provided to detect the angle of inclination of the ground work device 5 to the ground, and the drive mechanism 19 is automatically activated based on the detection result of the detection device 20. A rolling control mechanism is configured by linking a detection device 20 that detects the inclination angle with respect to the ground to maintain the above-mentioned ground work device 5 in a horizontal attitude relative to the ground by operating the above-mentioned attitude control mechanism; A ground-based working machine equipped with a switching mechanism 25 that selectively switches the operation of a rolling control mechanism.