JPH0681205U - Arrangement structure of automatic tilling depth control sensor of rotary device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To ensure good accuracy of automatic plowing depth control. [Structure] A vertical rib 12 'for reinforcement is provided on the upper surface of the rear cover 11.
Extend from the front end of the rear cover 11 to the rear end position,
The connecting portion 12'a is formed by extending the front end portion of the reinforcing vertical rib 12 'toward the front upper side, and the connecting portion 12'a and the left and right shaft case 9'disposed at the front portion of the rotary device A are formed. A hanger rod 13 'is interposed between the bracket and the front portion of the upper surface of the rear cover 11, and the bracket is arranged at a position located laterally outside the connecting portion 12'a. Are arranged so as to overlap each other in a side view, the sensor body of the automatic tilling depth control sensor is placed on the upper surface of the rotary cover 10 and in the vicinity of the pivot portion, and the sensing body faces the bracket side from the sensor body. 14b is extended, the sensing body 14b is positioned substantially parallel to the reinforcing vertical ribs 12 ', and the tip is connected to the bracket 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

The present invention relates to a structure for arranging an automatic tilling depth control sensor for a rotary device.

[0002]

[Prior art]

 Conventionally, a rotary device connected to the rear of the tractor is configured so that the automatic working depth control sensor automatically and appropriately adjusts the working depth so that the working depth is always kept constant.

That is, in the automatic tilling depth control sensor, the sensor main body is mounted on the rotary cover of the rotary device, and the tip of the sensing rod protruding from the sensor main body is vertically oscillated vertically from the rotary cover. A rotary device in which the sensor body is configured to detect the movement of the rear cover that is connected to the rear cover and swings up and down with changes in the plowing depth via the sensing rod, and the sensor body is provided on the tractor. By controlling the hydraulic valve for raising and lowering, the rotary device automatically adjusts the working depth.

[0004]

[Problems to be solved by the device]

 However, even with such an automatic plowing depth control sensor, there is a problem that the plowing depth is not accurately controlled because the sensing rod does not operate accurately.

That is, the rear cover connecting the tips of the sensing rods is designed to be lightweight by using a thin plate so that the tip end originally slides on the cultivated surface to serve the function of leveling the cultivated surface. The rear cover itself swings up and down as appropriate even when the working depth changes to ensure the leveling of the cultivated surface.However, the rear cover is liable to be distorted due to scattering of cultivated soil. This distortion has been a cause of deteriorating the accuracy of the sensing rod.

[0006]

[Means for Solving the Problems]

 Therefore, in the present invention, the rear end of the rotary cover of the rotary device is pivotally supported by the base end of the rear cover so as to be vertically swingable, and the rear cover and the hydraulic valve for raising and lowering the rotary device provided on the tractor are connected. In a rotary device that has an automatic tillage depth control sensor installed in the front of the rear cover, a pair of left and right vertical ribs for reinforcement are projected on the upper surface of the rear cover at intervals in the left-right width direction. In addition, each reinforcing vertical rib extends longitudinally from the front end portion of the rear cover to the rear end position, and the connecting portion extends frontward and upward from the front end portion of each reinforcing vertical rib. A pair of left and right hanger rods are provided between each connecting part and the left and right shaft case arranged in the front part of the rotary device. of The bracket is arranged at a position located on the outer side, and the bracket and the connecting portion are overlapped with each other in a side view, and the bracket is arranged on the upper surface of the rotary cover immediately in front of the bracket and the pivot portion. Place the sensor body of the automatic plowing depth control sensor in the vicinity of the sensor body, extend the sensing body from the sensor body toward the bracket side, and position the sensing body approximately parallel to the vertical reinforcing ribs and tip. It is intended to provide a structure for arranging an automatic tilling depth control sensor for a rotary device, which is connected to a bracket.

[0007]

[Action]

 In the present invention, when the tilling depth changes during the tilling work, the rear cover swings up and down in response to the change, and the sensor body detects the movement of the rear cover by the sensing body, and the valve for lifting the rotary device of the tractor is moved. Along with the operation, the rotary unit is automatically adjusted to the proper height, so that a constant working depth is automatically secured.

At this time, a pair of left and right reinforcing vertical ribs are provided on the upper surface of the rear cover so as to be spaced apart in the left-right width direction, and each reinforcing vertical rib extends from the front end portion of the rear cover to the rear end position. It is formed by extending it vertically and extending the connecting part from the front end of each reinforcing vertical rib toward the front upper part, and between each connecting part and the left and right shaft cases arranged in the front part of the rotary device. Since a pair of left and right hanger rods are provided, even when the rear cover itself is made thin and lightweight, it is possible to prevent the rear cover from being distorted due to cultivated and scattered soil, etc. It is possible to prevent the occurrence of twisting.

Moreover, the bracket is arranged at a position on the front side of the upper surface of the rear cover and on the lateral outside of either one of the left and right connecting parts, and the bracket and the connecting part are overlapped in a side view. The sensor body of the automatic tillage depth control sensor is placed on the upper surface of the rotary cover located immediately in front of the bracket and in the vicinity of the pivot, and sensing is performed from the sensor body toward the bracket side. Since the body is extended and the sensing body is positioned substantially parallel to the vertical ribs for reinforcement and the tip is connected to the bracket, the vertical movement of the rear cover can be reliably detected through the sensing body. Can be transmitted to.

As described above, since the rear cover can be prevented from being distorted or twisted and the vertical movement of the rear cover can be reliably transmitted to the sensor main body, the accuracy of the automatic plowing depth control is ensured to be good. be able to.

[0011]

【Example】

 1 and 2 is a rotary device, which is vertically movably connected to the rear of a tractor and is used for cultivating work.

Further, 1 is a hitch portion, 2 is a stay, 3 is an electric tilling case, 4 is a rotary shaft, 5 is a rotary claw, 6 is a depth adjusting frame, 7 is a tilling depth adjusting device, 8 is a side cover, 9, 9'is a left-right shaft case.

Reference numeral 10 denotes a rotary cover that covers the rotary claw 5, and a rear end of the cover 10 has a rear end of which is pivotally supported 11b so as to be vertically swingable.

The rear cover 11 is formed in a laterally long thin plate shape, and the tip 11a is bent downward so that the tip 11a slides on the cultivated surface, so that the cultivated surface is leveled. It is configured to be done.

On the upper surface of the rear cover 11, a pair of left and right reinforcing vertical ribs 12, 12 ′ are provided so as to project in the left-right width direction, and each reinforcing vertical rib 12, 12 ′ has a front end of the rear cover 12. Longitudinally extending from the end to the rear end position, and the connecting portions 12a, 12'a are formed by extending from the front end of each of the reinforcing vertical ribs 12, 12 'toward the front upper side. A pair of left and right hanger rods 13 and 13 'are provided between the 12'a and the left and right shaft cases 9 and 9'arranged in the front part of the rotary device A. The lowering of the rear cover is restricted.

Moreover, the rotary apparatus A is constructed so that the automatic plowing depth control sensor 14 automatically and appropriately adjusts the plowing depth so that the plowing depth is always kept constant.

The automatic tilling depth control sensor 14 includes a sensor body 14a, a sensing body 14b projecting from the sensor body 14a and connecting the tip to the rear cover 11, a sensor body 14a, and a rotary body provided on the tractor. It consists of an automatic tillage depth control wire 14c which is interposed between a hydraulic valve for raising and lowering the device.

In such a configuration, the gist of the present invention is the arrangement structure of the automatic tilling depth control sensor 14, which is as follows.

That is, the sensor body 14a of the automatic plowing depth control sensor 14 is mounted on the upper surface of the rotary cover 10 located below and in proximity to the right hanger rod 13 ', and the sensor body 14a has a right hanger rod in plan view. The sensing body 14b is projected rearward in parallel with the 13 'and the right reinforcing vertical rib 12', and the tip 14b 'of the sensing body 14b is attached to the rear cover 11 near the right reinforcing vertical rib 12' via the bracket 15. Are linked together. Moreover, the bracket 15 is arranged on the front part of the upper surface of the rear cover 11 and at a position laterally outside the right connecting part 12'a, and the bracket 15 and the connecting part 12'a are viewed in a side view. They are polymerized and placed.

Further, a reinforcing rib 16 is provided on the back surface of the rotary cover 10 on which the sensor body 14a is mounted.

Therefore, the sensor body 14a is stably supported on the upper surface of the rotary cover 10 having the reinforcing ribs 16, and the tip 14b 'of the sensing body 14b protruding from the sensor body 14a also has the right reinforcing vertical ribs 12. Since it is connected to the rear cover 11 via the bracket 15 in the vicinity of the ', the sensor main body 14a does not cause a sensing error due to the distortion of the rear cover 11, etc. It fulfills the function of controlling the working depth.

[0022]

[Effect of device]

 According to the present invention, since the structure is simplified and accurate sensing can be performed, automatic plowing depth control is surely performed, and there is an effect that work performance of securing a constant plowing depth is significantly improved.

[Brief description of drawings]

FIG. 1 is a side view of a rotary device having an automatic tilling depth control sensor arrangement structure according to the present invention.

FIG. 2 is a plan view of the rotary device.

[Explanation of symbols]

 A Rotary device 10 Rotary cover 11 Rear cover 14 Automatic tillage control sensor 14a Sensor body 14b Sensing body

Claims (1)

[Scope of utility model registration request] 1. A rotary cover (10) for a rotary device (A).
The rear end of the rear cover (11) is pivotally supported (11b) so that it can swing up and down, and the rear cover (11) automatically moves between the rear cover (11) and the hydraulic valve for raising and lowering the rotary device installed on the tractor. In a rotary device with a plowing depth control sensor (14) interposed so that automatic plowing control can be performed by the sensor (14), a pair of left and right reinforcing vertical ribs (12) are provided on the upper surface of the rear cover (11). ,
(12 ') are projected in the left-right width direction at intervals, and the reinforcing vertical ribs (12), (12') are extended longitudinally from the front end of the rear cover (12) to the rear end position. Let each vertical rib for reinforcement
From the front end of (12), (12 ') to the front upper part, connect part (12a), (1
2'a) is formed by extending it, and each connecting part (12a), (12'a) and the left and right shaft cases (9), (9 ') arranged at the front part of the rotary device (A).
Left and right pair of hanger rods (13), (13 ') between and
The front cover of the rear cover (11) and the left and right connecting parts (1
2a) and (12'a), the bracket (15) is arranged at a position located on the lateral outer side of either one, and the bracket (15) and the connecting portion (12'a) are overlapped in a side view. The rotary cover located immediately in front of the bracket (15).
Place the sensor body (14a) of the automatic tilling depth control sensor (14) on the upper surface of (10) and in the vicinity of the pivot (11b), and place the bracket (15) side from the sensor body (14a). Extend the sensing body (14b) toward, and position the sensing body (14b) substantially parallel to the reinforcing vertical ribs (12 '), and connect the tip (14b') to the bracket (15). Automatic rotary depth control sensor arrangement structure for the rotary device.