JPH052633U - Check device for traveling vehicle with tilt control device - Google Patents

Abstract

(57) [Abstract] [Purpose] Check the input of each sensor of automatic tilt control easily in the driver's seat. [Structure] The combine is positioned on a horizontal surface plate, and the operating levers 17 set the left and right hydraulic cylinders 16 and 16 'to the lower limit positions. Input check changeover switch 2 in this state
When 5 is turned on and the tilt angle setting dial 19 is set to the horizontal position, the input check control of the tilt sensor 21 is activated, and when the sensor is within the normal range, the horn 26 sounds.
Similarly, when the setting dial 19 is fully rotated to the left, the input check control of the left stroke sensor 22 is activated, and when the setting dial is fully rotated to the right, the input check control of the right stroke sensor 23 is activated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention relates to a traveling vehicle equipped with a tilt control device for holding a vehicle body at a preset tilt angle such as horizontal, and is particularly suitable for application to a combine. Specifically, each detection member of the tilt control device is input. Checking device for checking.

[0002]

[Prior Art]

 Recently, there has been proposed a combine equipped with an automatic tilt control device that always holds the machine body at a predetermined tilt angle such as horizontal regardless of the unevenness and tilt of the field. The tilt control device includes a tilt sensor for detecting the tilt angle of the machine body, a setting dial for setting the machine body to a predetermined tilt angle, hydraulic cylinders respectively interposing the left and right crawler traveling devices with the machine body, and these hydraulic cylinders. It has a left / right stroke sensor that detects the amount of expansion / contraction stroke, and compares the actual tilt angle of the machine body by the tilt sensor with the set tilt angle set with the setting dial. The expansion and contraction target values are calculated, and the left and right hydraulic cylinders are expanded and contracted while being detected by the stroke sensor so as to reach these target values.

[0003]

[Problems to be solved by the device]

 By the way, before the combine is shipped or at the time of maintenance, it is necessary to perform an input check whether the tilt sensor and the left and right stroke sensors output the set values. The voltage values in each were checked one by one with a voltmeter (tester) and a special inspection device.

Therefore, these input checks are extremely troublesome because it is necessary to dig into each sensor location with the combine installed in a predetermined state, and at the time of maintenance, it is necessary to check that no special inspection device is available. There are cases where you cannot.

Therefore, an object of the present invention is to provide a checking device for a traveling vehicle equipped with a tilt control device, which enables extremely easy input checking of each sensor in a driver's seat. ..

[0006]

[Means for Solving the Problems]

 The present invention has been made in view of the above circumstances, and the inclination sensor (21) for detecting the inclination of the airframe, and the intervals between the left and right traveling devices (2) (2 ') and the airframe (3) are respectively provided. Left and right stroke sensors (22) and (23) for detecting, and setting operation means (19) capable of setting the inclination of the machine body are provided, and the inclination of the machine body is held at a set value based on the setting operation means. An input check switching means (25) for switching to a check mode in a traveling vehicle equipped with a tilt control device formed by expanding and contracting the left and right hydraulic cylinders (16) (16 ') interposed between the left and right traveling devices and the machine body. And a notification means (26) for notifying that the tilt sensor (21) and the left and right stroke sensors (22) (23) are in proper states, and the setting operation means (19) at three different positions (A ) (B) (C) An input check control means (30) for checking each of the tilt sensor (21) and the left and right stroke sensors (22, 23) respectively, and in the check mode state, the setting operation is performed. When the means (19) is operated to each position (A) (B) (C) and the tilt sensor (21) and the left and right stroke sensors (22) (23) are in proper states, the input check control means (30) is provided. ) Notifies each of the sensors by the notification means (26).

[0007]

[Action]

 Based on the above configuration, the traveling vehicle (1) is positioned on the surface plate whose horizontal level is ensured, and the left and right hydraulic cylinders (16) and (16 ') are set to the lowest position by the operating lever (17). In this state, when the input check switching means (25) is switched to the check mode and the setting means (19) is set to the central position (C), the input check control means (30) controls the input check control of the tilt sensor (21). When the potentiometer (21a) of the sensor is in a predetermined horizontal range, the notification means (26) such as a horn notifies that the sensor (21) is in a normal state. Similarly, when the setting means (19) is turned fully to the left (A), the notifying means (26) notifies that the left stroke sensor (22) is in a normal state, and the setting means is also set. When (19) is turned to the position (B) where it is fully rotated to the right, the notification means (26) notifies that the right stroke sensor (23) is in a normal state.

[0008]

[Effect of the device]

 As described above, according to the present invention, the operator can operate the setting means (19) at each position in the driver's seat in order to operate the tilt sensor (21) and the left and right stroke sensors (22), (23). The input can be checked, and it is extremely easy to check whether or not each sensor is in a normal state without using a special instrument.

If the setting means (19) is not in a normal state, the notification means (26) does not notify even if the position (A), (B), (C) is operated, so the setting means (19) You can also check for problems such as your own disconnection.

Further, since the setting means (19) of the tilt control device is used for switching the input check of each sensor (21), (22), (23), it is not necessary to add a special device, and the cost is increased. It can be easily applied without inviting.

It should be noted that the reference numerals in parentheses described above are in contrast to the drawings, but do not limit the configuration of the present invention in any way.

[0012]

【Example】

 Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

As shown in FIG. 3, the combine 1 has a traveling machine body 3 supported by a pair of left and right crawler traveling devices 2 and 2 ′. The traveling machine body 3 is mounted on a body frame 5. It is equipped with an automatic threshing machine, a paddy tank, a driver's seat, etc., which are mounted on it, and a pretreatment section 6 is supported in a forward and downward direction. The crawler traveling device 2 has a drive sprocket 7, a driven sprocket 9, a large number of rolling wheels 10, ... And a crawler 11 wound around these, and the drive sprocket 7 is mounted on the body frame 5. The driven sprocket 9 and a large number of rolling wheels 10 are supported by a case, and are slidably or swingably supported by a track frame 12. Furthermore, a pair of front and rear swing arms 13 and 15 are supported on the machine body frame 5. One end of each of these swing arms 13 and 15 is connected to the track frame 12, and the other end thereof is connected to a connecting rod 14. Are connected to each other via. The other end of the rear swing arm 15 is extended, the piston end of the hydraulic cylinder 16 is connected to the extension, and the other end of the hydraulic cylinder 16 is connected to the machine body frame 5. Although the above description refers to the left crawler traveling device 2, the right crawler traveling device 2'is similarly configured.

Further, as shown in FIG. 2, on the panel 18 of the driver's seat of the traveling machine body 3, as shown in FIG. 2, an operating lever 17 capable of tilting in the left / right / front / rear direction, a tilt setting dial 19, and a lamp 20 a are incorporated. A tilt automatic main switch 20 and the like are provided, and an input check changeover switch 25 is provided on the front side surface of the panel 18. The operating lever 17 lowers the machine body 3 by the forward tilting operation, raises the machine body 3 by the rearward tilting operation, tilts the machine body rightwardly by the rightward tilting operation, and moves leftwardly by the leftward tilting operation. Operates downhill. In addition, the driver's seat is equipped with a single side clutch lever, a main gear shift lever, a pre-treatment section elevating lever, a cutting height setting dial, etc. By operating the clutch lever left and right by the driver. The corresponding side clutches are disengaged, the side brakes are further actuated, the traveling machine body 3 is steered, and the main speed change lever is operated in the forward and reverse directions to provide a continuously variable transmission and forward / reverse switching clutch. When the traveling device is shifted forward or backward, and the pretreatment section elevating lever is operated in the ascending direction, the pretreatment section 6 is moved up and the elevating lever is operated in the descending direction. , The pre-processing unit 6 is lowered to the lowered position preset by the setting dial. The left and right dividers provided at the front end of the pretreatment unit 6 are respectively provided with a left (for horizontal cutting) automatic direction control device and a right (for row cutting) automatic direction control device. The control devices each issue a left / right turn command to inching the side clutch. Further, an inclination sensor 21 (see FIG. 1) is installed at an appropriate position of the traveling machine body 3, and the inclination sensor 21 can detect the inclination angle of the machine body 3. Left and right stroke sensors 22 and 23 (see FIG. 1) are arranged in parallel with the left and right hydraulic cylinders 16 and 16 '. The distance from the machine frame 5 is detected.

FIG. 1 is a diagram showing the connection of the above-mentioned operation means and various sensors. The tilt control unit U includes the input check changeover switch 25, the tilt automatic switch 20, the four switches operated by the operation lever 17, and the potentiometer 19a operated by the tilt setting dial 19 constituting the setting means. The signal from is input. Further, the control unit U includes potentiometers 22a and 23a of stroke sensors 22 and 23 for detecting stroke positions of the left and right hydraulic cylinders 16 and 16 ', and a potentiometer of inclination sensor 21 for detecting left and right inclination of the traveling body 3. The signal from 21a is input. On the other hand, the tilt control unit U outputs to the above-described ramp 20a of the automatic switch 20 and solenoid valves 33 and 35 for operating the left and right hydraulic cylinders 16 and 16 'for tilting the machine body, and also constitutes notifying means. It outputs to the horn 26.

Then, in the control unit U, while the stroke values are detected by the left and right stroke sensors 22 and 23 so as to match the preset angle of the preset dial 19 based on the signal from the tilt sensor 22, The automatic tilt control means 46 for driving and controlling the left and right solenoid valves 35, 36, and the input check changeover switch 25 and the automatic tilt switch 20 are used to switch the three positions A, B and C of the setting dial 19 to the left and right strokes, respectively. Corresponding to the sensors 22 and 23 and the tilt sensor 21, when each sensor is in a normal range, a horn 26 is smoothed and an input check control means 30 known to an operator is built in.

Next, the operation of this embodiment will be described with reference to FIGS. 4 and 5.

First, the combine 1 is transported onto a surface plate whose horizontal level is ensured, and the operator tilts the operation lever 17 forward to contract the left and right hydraulic cylinders 16 and 16 ′ to the limit, and 3 is set to the lower limit position, thereby completing the initial setting shown in FIG. 4 (S1). When the input check switch 25 is turned on in this state (S2), the inclination control mode (S3) is switched to the input check (control) mode (S4).

Further, in the input check control mode, as shown in FIG. 5, when the automatic tilt switch 20 is turned on (S5), the input check control means 30 operates. In this state, when the setting dial 19 is set to the central position (zone) C (S6), the input check control of the tilt sensor 21 is activated (S7), and the potentiometer 21a of the tilt sensor 21 is in the horizontal range. The horn 26 sounds intermittently to inform the operator that the sensor is in the normal position (S8). Similarly, when the setting dial 19 is fully turned to the left and set to the left position (zone) A, the input check control of the left stroke sensor 22 is activated (S9), and the potentiometer 22a of the sensor is moved to the lower limit position. If so, the horn 26 sounds intermittently to inform the operator that the sensor 22 is in the normal range (S8). When the setting dial 19 is fully turned to the right and set to the right position (zone) C, the input check control of the right stroke sensor 23 is activated (S10), and the potentiometer 23a of the sensor is set to the lower limit. When in the position, the horn 26 sounds intermittently to inform the operator that the sensor 23 is in the normal range (S8). If the tilt sensor 21 and the left and right stroke sensors 22 and 23 are out of the normal range, the horn 26 does not play (S11), and each sensor is abnormal and needs to be adjusted. Let me know. This completes the input check of each sensor 21, 22, 23 for automatic tilt control.

On the other hand, in the combine 1, when the input check changeover switch 25 is turned off and the automatic tilt main switch 20 is turned on, the automatic tilt control means 46 is operated. In this state, the actual inclination angle of the machine body 3 is detected every moment by the inclination sensor 21, and the detected value is compared with the set value preset by the operator using the setting dial 19. Then, the deviation between these detected values and the set value is calculated, and the expansion / contraction target values of the left and right hydraulic cylinders 16 and 16 'are calculated with the left and right center of the machine body when the main switch 20 is turned on as a virtual stop. Then, the left and right hydraulic cylinders 16 and 16 'extend and retract in opposite directions so that the detected values of the left and right stroke sensors 22 and 23 match the target value, whereby the traveling machine body 3 is set by the setting dial 19. Keep the same inclination angle and drive.

In the above-mentioned embodiment, the horn 26 is used as the notification means, but this may be other means such as a monitor lamp, and a plurality of horns may be installed corresponding to each sensor. .. Although the condition that the check control means operates is that the automatic tilt main switch 20 is in the ON state, this is not necessary, and the check control means operates only by switching the input check switch 25. May be. Furthermore, although the above embodiment has been described with respect to the combine, it is needless to say that the present invention can be similarly applied to other traveling vehicles including construction machines such as a bulldozer.

[Brief description of drawings]

FIG. 1 is a control block diagram showing an input check control device of a tilt control device according to the present invention.

FIG. 2 is a perspective view showing an operation unit of the tilt control device and the input check control device according to the present invention.

FIG. 3 is a side view showing a combine to which the present invention can be applied.

FIG. 4 is a flowchart showing the start of input check control according to the present invention.

FIG. 5 is a flowchart showing input check control according to the present invention.

[Explanation of symbols]

 1 traveling vehicle (combine) 2, 2 '(crawler) traveling device 3 traveling body 16, 16' hydraulic cylinder 19 setting means (dial) 20 automatic main switch 21 tilt sensor 22 left stroke sensor 23 right stroke sensor 30 input check control means 33, 35 Left and right solenoid valves for tilt control 46 Automatic tilt control means

Claims (1)

[Claims for utility model registration] Claims: 1. An inclination sensor for detecting the inclination of the machine body, a left and right stroke sensor for detecting a distance between the left and right traveling devices and the body, and a setting operation means capable of setting the inclination of the machine body. And a tilt control device that expands and contracts left and right hydraulic cylinders interposed between the left and right traveling devices and the body so as to maintain the tilt of the body at a set value based on the setting operation means. In the traveling vehicle, the input check switching means for switching to the check mode, the notification means for notifying that the tilt sensor and the left and right stroke sensors are in the proper state, and the three different positions of the setting operation means are the tilt sensor. And an input check control means for checking each of the left and right stroke sensors and checking the respective sensors. Then, when the setting operation means is operated to each position, when the inclination sensor and the left and right stroke sensor are in proper states, the input check control means notifies the notification means corresponding to each sensor, A checking device for a traveling vehicle equipped with a tilt control device.