JP2007089479A - Control-setting device of working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten efficiency while carrying out operation easily by constituting a setting tool of one controller so that an original standard setting function may be selectively changed to the function which can set the other controller in a working vehicle having both of resembled two controllers, and selecting and utilizing an effective controlling function in the two controllers. <P>SOLUTION: The control-setting device of the working vehicle 5 is constituted so that the function of the setting can selectively be changed in the working vehicle 5 constituted so that an implement 2 attached to a car body 1 can be controlled by two systems of a lifting and lowering-controlling device 3 and a rolling-controlling device 4. The setting tool 6 or 7 of the two systems is constituted so that the change to the setting function of the other controller 4 or 3 may be selected instead of the standard setting function of it self of the controller 3 or 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  This invention makes it possible to change the function of setting the condition of the other control device in place of the original standard setting function for the setting tool of one control device in the lifting system control device and rolling system control device of the work implement. The present invention relates to a control setting device for a work vehicle.

  Conventionally, this type of work vehicle is equipped with various control devices. For example, when a rotary cultivator is connected to a work vehicle to perform a cultivating work, the work machine is relatively similar in its control function. There is a case in which a plowing depth control device that is one of the system control mechanisms and a rolling control device for a work machine are provided together, and both control functions can be used at the same time. However, when there are two control devices having similar functions, the operator places the operation panel of one control device, which is familiar to him / her, in an easy-to-operate position according to his / her preference, and In many cases, the setting panel is housed in the cover and the work is performed in an unused state.

Thus, when the operator is equipped with two similar control devices and two controls can be used at the same time, for example, as described above, two similar control systems of the tilling depth control device and the rolling control device are used. Control function that is effective for rotary tillage work, for example, either the tillage adjustment dial for tillage control or the tilt adjustment dial for rolling control can be set, or the work equipment lift switch Alternatively, if one of the horizontal manual switches is selected and the work can be performed with the control of both, it becomes possible to perform the tilling work more easily and efficiently, and a work vehicle control setting tool that can satisfy the operator. Can be provided.
JP 2003-189708 A

  The rolling control device for a power farm machine described in Patent Document 1 is provided with a rotary cultivator connected to a tractor so as to be able to perform rolling control, and each mode of an automatic horizontal mode, a parallel mode, or an inclination mode can be selected by a setting device. Thus, rolling control is performed based on the setting signal, so that the tilling work can be performed. In this way, the conventional device is provided with a setting tool corresponding to its own control function for each control device, and the actuator is operated by the setting signal based on the control condition set by the respective setting dial and setting switch, thereby providing the control function. It is the structure which demonstrates.

  In this way, even if a conventional work vehicle has two control devices similar to one, the setting device is separate and the operator can set one of the control devices that he / she is used to depending on his / her preference. There is a problem that the panel is placed at the operation position, the setting operation panel of the other control device is covered and stored in an unusable state, and the effective control function of the other control device is not utilized.

  The invention according to this application is a work vehicle in which two similar control devices are provided, and the setting tool of one control device can be set to the other control device instead of the original standard setting function. In this configuration, it is possible to select and use an effective control function among the two control devices, and to increase efficiency while performing work easily.

  In order to solve the above-mentioned problem, the present invention provides a lifting system control device comprising a work machine (2) mounted on a vehicle body (1) so as to be movable up and down freely and capable of rolling. In the work vehicle (5) configured to be able to control two systems of (3) and the rolling system control device (4), the lifting system control device (3) and the rolling system control device (4) are: A control unit (10) capable of driving each actuator (8) (9) based on a signal set by the setting tool (6) (7) provided for each control system is provided, and the two systems of setting tools (6) (7) replaces the standard setting function of one control device (3 or 4) of the two systems of the lift control device (3) and the rolling system control device (4) with the other control device (4 or 3) Setting function change can be selected as setting tool (7 or 6) A work vehicle control setting device characterized in that the rotary tiller device (2) is connected to the work vehicle (5), and the lift system control device (3) and the rolling system control device (4). This is effective when the system is configured to enable control with relatively similar functions.

  In the invention of claim 1, for example, a plowing depth adjustment dial (45) of a plowing depth control which is a lifting system control device (3) is replaced with a plowing depth setting which is a self-standard setting function. The function can be changed so that the tilt adjustment dial (36) of the system control device (4) can be set. Therefore, the operator does not use only the control device that is familiar to his / her preference even if it is somewhat inconvenient as in the prior art, but from among the control functions of two similar control devices (3) and (4). Effective control functions can be selected and used to facilitate work and improve work efficiency.

  Next, in the invention described in claim 2, in the function change of the setting tool (6) (7), the display switching operation device (11) of the display device (11) such as a liquid crystal mounted on the work vehicle (5) 12. The work vehicle control setting device according to claim 1, wherein the operation device is configured to be changed using a display device (11) mounted on the work vehicle. Can be used to switch between the setting tools (6) and (7), and there is an advantage that a separate device such as a checker is not required.

  Next, in the invention described in claim 3, the control devices (3) and (4) of the two systems have a plurality of function patterns of the setting tool (6) and (7) in each storage unit (3a) and (4a). The work vehicle control setting device according to claim 1, characterized in that the function setting of the setting tool (6) (7) can be changed by storing and selecting the setting tool (6). The functions of the setting tools (6) and (7) can be changed.

  According to the first aspect of the present invention, the control function effective for the work can be selected from the relatively similar control functions of the two systems of control devices (3) and (4). The work efficiency is greatly improved while the work is performed easily.

  In the invention of claim 1, for example, a plowing depth adjustment dial (45) for plowing depth control which is an example of a lifting / lowering control device (3) is replaced with a rolling control device ( Since the function can be changed so that the function setting performed by the tilt adjustment dial (36) in 4) can be performed, the operator prefers while tolerating some inconvenience in the work as in the past. Therefore, there is a feature that an effective control function can be selected from two similar systems of control and work can be conveniently performed to improve work efficiency, instead of using only a familiar control device.

  The invention described in claim 2 can switch the setting tools (6) and (7) by using the operation device (12) such as display switching of the display device (11) mounted on the work vehicle. This is a simple switching device that does not require a separate device such as a checker and can be realized at low cost.

  In the invention described in claim 3, the setting tool (7) or (6) of the other control device (3) is used instead of the original setting function in one setting tool (6) or (7). ) Can be changed easily so that the setting operation can be performed.

  First, the invention of claim 1 is the work vehicle 5 configured to be capable of controlling two systems of the lifting system control device 3 and the rolling system control device 4, and the lifting system control device 3 and the rolling system control device 4. Is provided with a control unit 10 that can drive each actuator 8 based on signals set by the setting tools 6 and 7 provided for each control system, and the two systems of setting tools 6 and 7 have their own control devices 3. Alternatively, instead of the standard setting function of 4, the setting function of the setting tool 7 or 6 of the other control device 4 or 3 can be added.

  Therefore, in the above invention, in two control devices having similar control functions installed in a work vehicle, a control function effective for the work is selected from either one of the control devices 3 or 4 and set. This is an extremely effective invention in which the function can be changed to 6 or 7.

  The invention of claim 2 is configured to change the function of the setting tool 6 or 7 by using the display switching operation device 12 of the display device 11 such as a liquid crystal mounted on the work vehicle 5, such as a checker. It is a simple device that can be manufactured at low cost without requiring another device.

  The invention of claim 3 is set by storing a plurality of function patterns of the setting tools 6 and 7 in the storage units 3a and 4a of the control devices 3 and 4 of the two systems and selecting them. The functions of the tools 6 and 7 can be changed, and the function can be changed very easily.

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, the tractor 5 corresponds to the work vehicle 5 of the present application. As shown in FIG. 5, the tractor 5 is provided with a control seat 16 on the vehicle body 1 and a steering handle 17 disposed in front of the control seat 16. 18 and 18 can be steered with a light operating force via a power steering mechanism. The panel 19 for display and operation is provided with various display units, operation dials, and switches around the speed display meter arranged at the center position, and is attached at an easy-to-see position on the front side of the steering handle 17. It is composed.

  As shown in FIG. 5, the engine 20 is housed and mounted below a hood cover 21 that can be freely opened and closed at the front of the vehicle body 1, and rotates to a traveling mission device 22 that is provided on the lower rear side. It is configured to transmit power. In this case, the traveling mission device 22 of the embodiment is not shown in the figure, but a main clutch or a hydrostatic continuously variable transmission is provided in the transmission path from the engine 20 to the traveling mission device 22. The output is input via these.

  The traveling mission device 22 is equipped with a mission mechanism including the following devices for performing a standard speed change operation of the conventional tractor 5 inside the mission case 27. That is, the traveling mission device 22 has a forward / reverse switching device, a main transmission device capable of four-speed shifting, and a sub-speed capable of shifting between a road speed (high speed) and a work speed (low speed) from the transmission power transmission side of the engine output. Arranged in the order of the transmission, a series of transmissions are possible. In the embodiment, the traveling mission device 22 is configured so that traveling power can be transmitted to the rear wheels 23, 23 of the vehicle body 1, and further, a PTO shaft 24 that transmits the work implement 2 is provided at the rear portion. The power is transmitted to the work machine 2 connected to the rear part.

  As shown in FIG. 5, the working machine 2 is a rotary tiller 2 in the case of the embodiment, and the rear side of the tractor 5 is used with respect to the vehicle body 1 by using a lifting support mechanism described below. It is configured so that it can be raised and lowered freely and can be rolled.

  First, as shown in FIG. 5, the pair of left and right lift arms 26, 26 are pivotally attached to the left and right sides of a hydraulic cylinder case 28 mounted on the top of the mission case 27, with the tip side protruding upward at the rear, It is configured to freely rotate up and down. The left and right lift arms 26 and 26 are turned upward when hydraulic oil is supplied to the hydraulic cylinder 29 in the hydraulic cylinder case 28, and lowered when the hydraulic oil is drained. It can be moved up and down.

  Next, as shown in FIG. 5, the lift rods 30, 30 are connected at the upper ends to the tip ends of the lift arms 26, 26 and the lower ends are connected to intermediate portions of the lower lower links 31, 31, respectively. Thus, the vertical rotation of the lift arms 26 and 26 is transmitted to the lower links 31 and 31 as they are. The lift lots 30, 30 of the embodiment are configured by replacing the right side with a compound cylinder type hydraulic cylinder 30 a and connecting the right side to the left side in order to roll the rotary tiller 2 with respect to the vehicle body 1. It can be expanded and contracted. The hydraulic cylinder 30a is provided with a stroke sensor 32 along the lateral side, and is configured to be able to measure a cylinder length that changes with expansion and contraction and input it to the control unit 10 described later.

  Thus, as shown in FIG. 5, the rotary tiller 2 is connected to the rear portions of the lower links 31, 31, can be moved up and down with respect to the vehicle body 1 of the tractor 5, and can be rotated. Yes.

  The rolling control device 4 according to the embodiment is a general control mechanism that has been widely used in the tractor 5 from the past. That is, as shown in FIG. 1, the control unit 10 has a tilt sensor 35 (installed on the hydraulic cylinder 28) for detecting the tilt angle in the left-right direction of the tractor 5, and a stroke provided along the hydraulic cylinder 30a. The sensor 32 is connected to an inclination adjustment dial 36 (corresponding to the setting tool 7) provided on the panel 19 (on the operation panel) on the control seat 16 side.

  In this case, as shown in FIG. 1, the control unit 10 determines the tilt control amount of the rotary tiller 2 based on the detection information of the two sensors 32 and 35 and the set value set by the tilt adjustment dial 36. calculate. Then, the control unit 10 outputs a control signal to the horizontal expansion solenoid 40 or the horizontal contraction solenoid 41 corresponding to the actuator 9 based on the tilt control amount, and performs rolling control by electromagnetically switching the hydraulic valve, The rotary tiller 2 is maintained at a left / right tilt angle based on a set value.

And if the rolling control apparatus 4 provides the acceleration sensor which detects an up-and-down action | operation on the left-right axis | shaft of a rear-wheel, it can improve an initial response significantly.
Next, the rotary tiller 2 is provided with a potentiometer plow depth sensor 43 for detecting a plow depth at the rear upper part of the rotary cover 42, and a dial adjustable plow on the panel 19 on the control seat 16 side of the tractor 5. The lift arms 26 and 26 are rotated so that the plowing depth set by the depth adjustment dial 45 (corresponding to the setting tool 6) is reached, and the rotary plowing device 2 as a whole moves up and down to maintain the set plowing depth. It is supposed to be.

  And in the case of an Example, as shown in FIG. 1, FIG. 5, when the plowing depth becomes deep, the control part 10 will receive the pushing-up pressure from the downward direction (ground surface), and will move up, As a result Based on the input detection signal, control is performed by outputting a control signal to the lift solenoid 46. In this case, in the rotary tiller 2, when the valve is switched as described above, the hydraulic oil is sent to the hydraulic cylinder 29, the lift arms 26 and 26 are lifted, and the lift lots 30 and 30 and the lower links 31 and 31 are moved. It is lifted through and controlled to the side where the tilling depth becomes shallower. In addition, 47 shown in FIG. 1 has shown the descending solenoid.

  And the rotary cover 42 of an Example is set as the structure which raised the sensitivity by narrowing the width | variety of a dead zone compared with the past so that the rotary tilling apparatus 2 may follow a quick tilling operation | movement more quickly. In the case of the embodiment, the width of the dead zone of the rotary cover 42 is configured such that the width of the lowered dead zone is narrower than that of the raised dead zone.

  If comprised in this way, since the rotary tiller 2 will move the soil in the ascending movement, it is more suitable for the actual situation of the operation to operate a little later, and conversely, it is necessary to fill the hole in the descending movement Therefore, the one that descends earlier is the lifting operation suitable for the actual tillage work and leveling work.

Next, the setting tools 6 and 7 of the control device will be described with reference to FIG.
First, as shown in FIG. 3, the setting tools 7 of the rolling control device 4 are concentrated on the right side of the operation panel 19, and the setting tools 6 of the lifting system control device 3 are placed on the left side of the operation panel 19. Concentrated and configured. An inclination adjustment dial 36, a mode changeover switch 50, and a horizontal manual switch 51 are arranged on the rolling control device 4 side. The inclination adjustment dial 36 can set the inclination of the rotary tiller 2 with respect to the vehicle body 1 by selecting an arbitrary inclination from upward to downward. The mode changeover switch 50 is configured to be able to switch between “automatic horizontal mode”, “tilt mode”, “parallel mode”, and “manual mode”.

  The “automatic horizontal mode” is a mode for always controlling the rotary tiller 2 horizontally, and is a main function of rolling control. In the “tilt mode”, when this is set, a preset tilt angle is maintained regardless of the tilt of the tractor 5.

  In the “parallel mode”, when switched to this, the rotary tiller 2 is always kept parallel to the vehicle body 1 of the tractor 5. In this case, the parallelism on the rotary tiller 2 side with respect to the tractor 5 is detected by the stroke sensor 32 attached to the side of the hydraulic cylinder 30a. When this “parallel mode” is selected, the detection information of the inclination sensor 35 is detected. Regardless of this, the tractor 5 is kept parallel to the vehicle body 1.

  The mode changeover switch 50 is in a manual state when each of the above modes is not selected, and can be moved up and down by operating the horizontal manual switch 51. The horizontal manual switch 51 is provided with two switches, a right-up 51a and a right-down 51b, and a left lift rod 30 that always maintains a constant vertical distance (the distance between the lift arm 26 and the lower link 31). On the other hand, the right hydraulic cylinder 30a is expanded and contracted.

  As shown in FIG. 3, each setting tool 6 of the tilling depth control device 3b is concentrated on the left side, and the raising position adjusting dial 53, the tilling depth adjusting dial 45, the backup switch 54, the working machine ascent and descent. The switches 55 are arranged in order.

  The backup switch 54 is not directly related to the tilling depth control device 3b. However, the backup switch 54 is one of the embodiments of the lifting control device 3, and when the operation is performed by operating the lifting control device 3, the traveling is advanced. When switching to back travel from (or the stop position), the control unit 10 outputs a control signal to the lift solenoid 46, and automatically lifts and rotates the rotary tiller 2 to avoid obstacles and back safely. It can run.

  The control mechanism of the rolling control device 4, the lifting system control device 3, and the tilling depth control device 3b included therein is summarized in FIG. This will be explained in a block diagram.

  First, the control unit 10 is configured to be capable of each control action 3, 3b, 4 and on the input side, the tilt sensor 35, the stroke sensor 32, the tilling depth sensor 43, the control lever 60, the tilling depth adjusting dial 45, the work The machine elevation switch 55, the raising position adjustment dial 53, the backup switch 54, the horizontal mode changeover switch 50, the tilt adjustment dial 36, and the horizontal manual switch 51 are connected to each other. The control unit 10 is configured by connecting a liquid crystal display device 11, a display changeover switch (display switching operation device) 12, a rising solenoid 46, a lowering solenoid 47, a horizontal expansion solenoid 40, and a horizontal contraction solenoid 41 to the output side. ing. In FIG. 1, reference numerals 3a and 4a denote storage units.

  In the embodiment, the plowing depth adjustment dial 45 of the plowing depth control device 3b and the inclination adjustment dial 36 of the rolling control device 4 can be changed to the setting function of the other control instead of one of the original setting functions. It is configured. In other words, the embodiment is configured such that the plowing depth adjustment dial 45 can be changed to the setting function of the tilt adjustment dial 36 of the rolling control device 4 in place of the function of setting and adjusting the original plowing depth.

Therefore, when the setting function of the tilling depth adjustment dial 45 is changed, the setting operation as the inclination adjusting dial 36 can be performed instead of the setting for adjusting the original tilling depth.
As described above, according to the embodiment of the present invention, for example, the tilling depth adjusting dial 45 and the tilt adjusting dial 36, the work implement lifting switch 55 and the horizontal manual switch between the rolling control device 4 and the tilling depth control device 3b are used. 51, the setting function can be changed.

  In this case, as shown in FIG. 1, the setting tools 6 and 7 are marked on the operation panel 19 (in the embodiment shown in FIG. 1, additional numbers 1 to 7 are added in front of the setting tools. .)) Is advantageous in that when a function is changed, it is easy to understand after the operation and the occurrence of an operation error is reduced.

  As a change means, the display changeover switch 12 of the display device 11 can be used relatively easily. Or the function change of the setting tools 6 and 7 is good also as a structure which can memorize | store the function pattern of each switch in the said memory | storage parts 3a and 4a, and can change the function of switches by selecting this.

  The procedure for changing the function of each setting tool 6 and setting tool 7 is shown in the flowchart of FIG. 2 as an example. However, the screen of the liquid crystal display device 11 is switched to the check mode, and the functions of the panels (setting tools 6 and 7). When the change is selected “Yes”, the setting tools 6 and 7 are then displayed in the order of symbols (numbers), and 1 (cultivation depth adjustment dial 45) to 7 (horizontal manual switch 51) are displayed in order. Select the change destination from the display.

  Thus, the function change can be performed by changing the setting tool 6 (plowing depth adjustment dial 45) to the setting tool 7 (tilt adjustment dial 36) according to the procedure shown in FIG. Then, as shown in the flowchart of FIG. 4, the actual work procedure starts the work by setting the dials and switches after switching the functions of the setting tools 6 and 7 as described in the above procedure.

  Then, the control unit 10 reads the setting values 6 and 7 and the setting values and detection values of the sensors and performs the control action, and the work proceeds. In the process, from the depth control, the rolling control, and the lifting control, It is unique in that the selected control is performed, the work is easy, and the work efficiency is greatly improved.

  As described above, each embodiment can be operated by selecting a control function effective for work among the relatively similar control functions of the two control devices 3 and 4, so that it is convenient and easy. There is a feature that the work efficiency can be greatly improved while working.

  Thus, in the embodiment, the function change of the setting tools 6 and 7 is changed to the plowing depth adjustment dial for plowing depth control, and the setting of the tilt adjustment dial of the rolling system control device 4 is performed instead of the original standard setting function. The function can be changed as much as possible, so that the operator can select an effective control function in the control of the two systems, instead of using a favorite or familiar control device as in the past. Thus, the work can be conveniently performed while using one of the effective control functions.

  The setting dials 45 and 36, the raising / lowering, and the horizontal switch can be easily changed in function.

Block diagram showing the control mechanism Switching flowchart Control panel for dual control system flowchart Side view of tractor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Working machine 3 Elevating system control apparatus 4 Rolling system control apparatus 5 Work vehicle 6 Setting tool (elevating control apparatus)
7 Setting tool (rolling control device)
8 Actuator (lifting)
9 Actuator (Rolling)
DESCRIPTION OF SYMBOLS 10 Control part 11 Display apparatus 12 Display switching operation apparatus

Claims (3)

  The work machine (2) that can be freely moved up and down with respect to the vehicle body (1) and can be rolled can be controlled in two systems, that is, a lifting system control device (3) and a rolling system control device (4). In the work vehicle (5) configured as described above, the elevating system control device (3) and the rolling system control device (4) are based on signals set by setting tools (6) and (7) provided for each control system. A control unit (10) capable of driving the actuators (8) and (9), and the two systems of setting tools (6) and (7) are composed of the two systems of lifting system controller (3) and rolling system controller. Instead of the standard setting function of one control device (3 or 4) in (4), the setting function change can be selected as the setting tool (7 or 6) of the other control device (4 or 3). A control setting device for a work vehicle.   The function of the setting tool (6 or 7) can be changed using the display switching operation device (12) of the display device (11) such as a liquid crystal mounted on the work vehicle (5). The work vehicle control setting device according to claim 1, wherein:   The two systems of control devices (3) and (4) store a plurality of function patterns of the setting tools (6) and (7) in the storage units (3a) and (4a), and are set by selecting them. 2. The work vehicle control setting apparatus according to claim 1, wherein the functions of the tools (6) and (7) can be changed.

Images