JPH0526089Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention a. Industrial application field This invention relates to an operating device and a working method for a rotary snowplow equipped with a snow removal device having a snow throwing device, such as a snow removal device.

b. Prior art and its problems Currently, the operating device of a rotary snow blower with a snow throwing device has a hydraulic circuit configuration as shown in Fig. 3 as an example, and each actuator is connected to a plurality of operating levers or Select the operating lever and operating direction corresponding to the actuator of the snow-throwing device part to be operated by the shaped operating lever, or the direction of the snow-throwing position to be moved, and tilt it. As a result, each actuator is moved by operating the operation valve directly or through calculation by a controller.

On the other hand, in snow removal work using the rotary snowplow, both hands are occupied with steering operations and adjusting the travel speed lever to obtain a work speed that corresponds to the work load. Particularly in snow removal work in urban areas, the free zone in which snow can be thrown is limited, there are many obstacles, and it is necessary to appropriately adjust the snow throwing position.
The operation lever is frequently operated. Therefore, in current snow removal work, the driving operation of the rotary snowplow is controlled by a driver, and the snow throwing position is controlled by an assistant. However, by dividing the operation as described above, it is necessary to consider the timing of the driver and assistant.
Due to delays in the operation of the snow throwing device, the progress of the rotary snowplow vehicle frequently has to be stopped and the snow removal device must be operated, reducing the efficiency of snow removal work, and both the driver and the assistant require advanced operating skills. was needed.

B. Structure of the invention a Means for solving the problem This application attempts to solve the problem by taking the above matters into account and configuring it as follows. That is, the present application is based on the cap opening/closing angle, chute rotation angle, chute expansion/contraction amount, and blower rotation speed of a rotary snowplow equipped with a snow removal device that has a snow throwing device that can freely adjust the snow throwing direction and snow throwing angle. A rotary snowplow calculates the position of the rotary snowplow based on a snowplow position data memory circuit that stores the calculated snowplow position according to a characteristic equation, and the running speed, elapsed time, and travel distance of the rotary snowplow. Snow removal work in which control data can be stored in advance in a control device of a rotary snowplow equipped with a position calculation circuit and a correction calculation circuit that calculates the cap opening/closing angle, chute rotation angle, and chute expansion/contraction amount of the snow throwing device. By adding a construction method data memory circuit, necessary work method data is read from the snow removal method data memory circuit in comparison to the gator obtained by the rotary snowplow position calculation circuit, and the data is combined with the data of the snow throwing position data memory circuit. By comparing, the cap opening/closing angle, the chute rotation angle, and the amount of chute expansion/contraction are calculated by the correction calculation circuit, and each actuator is operated.

b. Embodiments of the invention Examples of the invention will be described below with reference to FIGS. 1 and 2.

A snow removing device 2 having a snow throwing device 1 that can freely adjust the snow throwing direction and snow throwing angle is mounted on a main vehicle 3, and a cap 5 is attached to the snow removing device 2 so that the snow throwing angle can be adjusted by a hydraulic cylinder 4. A position detector 6 is connected to detect the sliding angle of the hydraulic motor 7.
A position detector 9 is connected to detect the turning angle of the chute turning section 8, which is configured to be able to adjust the direction of snow throwing. Furthermore, the hydraulic cylinder 10
A position detector 12 for detecting the amount of expansion and contraction of the chute of a chute expansion and contraction section 11 attached to the chute so as to adjust the snow throwing height is connected thereto. Also, a rotation speed detector 15 attached to the propulsion shaft 14 to detect the rotation speed of the blower 13 for imparting speed to the snow to be removed or a rotation speed detector 17 to detect the rotation speed of the engine 16 and the snow removal Work transmission 1
A gear stage number detector 19 attached to 8 is attached. In addition, a steering angle detector 25 is attached to the driving shaft 20 or differential 21 of the rotary snowplow, or a running speed or mileage detector 23 attached to the vehicle 22, and a rotating part of the steering operation section 24 of the main vehicle. It is being

Each of the detectors 6, 9, 12 and 15 mentioned above
Alternatively, the signals of the cap opening/closing angle, chute rotation angle, chute expansion/contraction, and blower rotation speed detected from 17 and 19 are input to the input interface 26.
and stored in the snow throwing position data memory circuit 27 as a snow throwing position calculated based on the characteristic equation.

On the other hand, the signal output from the travel distance detector 23 similarly enters the rotary snowplow position calculation circuit 28 via the input interface 26, and calculates the travel position of the rotary snowplow. The calculated traveling position data is read by a correction calculation circuit 29, and further, snow throwing position data, snow throwing method data, etc. are read from a memory section corresponding to the traveling position data of a snow removal work method data memory circuit 30 prepared in advance. . The actual snow throwing position data from the snow throwing position data memory circuit 27 is compared in accordance with the snow throwing position data and snow throwing method data read as described above, correction calculations are performed, and operation is performed from the output interface 31. Each solenoid valve 32, 33, corresponding to each hydraulic cylinder 4, hydraulic motor 7, and hydraulic cylinder 10 that requires
Hydraulic cylinder 4, hydraulic motor 7, and hydraulic cylinder 1 that require the aforementioned operation at the same time as sending a control signal to 34.
A signal that controls the operating speed of 0 is sent to each controller 3.
Send to 5, 36, 37. Each controller 35,3
The signals received by the proportional control solenoid valves 38, 37 are converted into solenoid valve control signals and sent to the proportional control solenoid valves 38, 39, 40.

By the above control, the oil discharged from the working hydraulic pump 41 is transferred to each proportional control solenoid valve 38, 3.
9 and 40, respectively, and the corresponding solenoid valves 32, 33, and 34 control the corresponding hydraulic cylinders 4, hydraulic motors 7, and hydraulic cylinders 1.
The snow throwing position is operated according to the set snow throwing position and snow throwing method by being fed in accordance with the required operation of the snow throwing position.

When the operation start switch 42 is pressed, the above series of operations are automatically controlled by continuously repeating comparison and correction calculations by the rotary snowplow position calculation circuit 28 and correction calculation circuit 29. Further, when in the continuous automatic control state, the automatic operation can be temporarily stopped by pressing the emergency stop switch 43.

Furthermore, the above automatic control operation is completed by the correction calculation circuit 29 reading the termination data stored in advance in the snow removal work method data memory circuit 30, or by the operation termination switch 4.
4 can be completed. Furthermore, the operation end switch 44 can also serve as the operation start switch 42. The control data stored in the snow removal work method data memory circuit 30 is stored in the snow removal work area where the rotary snow removal vehicle is used.
The snow-throwing position and snow-throwing method for that section can be designed and incorporated in advance according to the travel distance. Furthermore, the contents of the snow removal method data memory circuit can be rewritten, and the structure can be adapted to changes in snow removal conditions in the snow removal section.

Further, it is possible to prepare several types of snow removal work method data, and by preparing a plurality of operation start switches 42 in terms of electrical circuitry, it is possible to select a snow removal work method and start the operation.

Furthermore, in order to respond to subtle changes in conditions during snow removal work, by adding an input device 45 such as a lever or touch panel, it becomes possible to correct the snow throwing position, etc. even during automatic control.

An example of the above-mentioned snow removal work method data to be designed in advance will be explained with reference to FIG. In snow removal section Z,
The snow-throwing conditions are classified into lateral snow-throwing possible zones I, L, and N, snow-throwing impossible zone J, snow-throwing possible zone K, and intersection point (snow-throwing impossible zone) M, etc. Furthermore, according to the above classification, side snow throwing sections A, D, H, front snow throwing sections B,
Fixed point snow throwing sections C, E, G and snow throwing device correction section F
Classify into. According to these, the operation starting point 100
, move the snow throwing position from A to A, move the snow throwing position from B to C at vehicle position 101, move the snow throwing position from D to H at vehicle position 102, move the snow throwing position from H to H at vehicle position 103, and move the snow throwing position from E to H at vehicle position 104. holds the snow-throwing position and sets the method of moving the snow-throwing position at each position, such as from one position to the other, between vehicle position 105 and vehicle position 106. Furthermore, the snow removal work method data memory circuit holds the snow throwing positions after the vehicle position 107, and determines a law for each snow throwing position and snow throwing method data, such as ending at the snow throwing position at the operation completion point 108, as control data. 30
write to. 46, 47, 49, 50, 5 in the diagram
1, 52, 54 are hydraulic cylinders, 48 is a hydraulic motor, 53 is a manual directional switching valve (or electromagnetic directional switching valve), 55 is a steering switching valve, 56 is a flow dividing valve,
57 is an oil cooler, 58 is a hydraulic pump, 59 is a filter, and 60 is an oil tank.

c. Effect Explain along with the effects.

C. Effects of the invention By applying the control device of the above invention to a rotary snowplow equipped with a snow removal device that has a snow removal device that can freely adjust the snow throwing direction and snow throwing angle, it can be adapted to the preset snow removal work section. It can be automatically controlled according to snow removal work method data, and during snow removal work, the snow removal position is automatically adjusted according to the relative position of the vehicle and the snow removal margin, which changes every moment as the rotary snowplow advances. be able to. Furthermore, there is no need to use multiple levers or composite levers that were required to be operated in that section. This allows the driver to concentrate on steering operations and speed adjustments, making it possible to reduce the frequency of operating the snow throwing device and improving the efficiency of snow removal work.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of the present invention, FIG. 2 is a working example diagram of the present invention, and FIG. 3 is a hydraulic circuit diagram of a conventional rotary snowplow. 1...Snow throwing device, 2...Snow removing device, 3...Main vehicle, 4...Hydraulic cylinder, 5...Cap, 6
...Position detector, 7...Hydraulic motor, 8...Chute rotating section, 9...Position detector, 10...Hydraulic cylinder, 11...Chute telescopic section, 12...Position detector, 13...Blower , 14...propulsion shaft, 15
...Rotational speed detector, 16...Engine, 17...
...Rotational speed detector, 18...Transmission for snow removal work,
19... Gear stage number detector, 20... Propulsion shaft for driving, 21... Differential, 22... Vehicle, 23... Travel distance detector, 24... Steering operation unit, 2
5...Steering angle detector, 26...Input interface, 27...Snow throwing position data memory circuit, 28...Rotary snowplow position calculation circuit, 2
9... Correction calculation circuit, 30... Snow removal work method data memory circuit, 31... Output interface,
32, 33, 34... Solenoid valve, 35, 36, 37
... Controller, 38, 39, 40 ... Proportional control solenoid valve, 41 ... Hydraulic pump for work.

Claims (1)

[Scope of utility model registration request] In a rotary snowplow equipped with a snow removal device that can freely adjust the snow throwing direction and snow throwing angle, the cap opening/closing angle, chute rotation angle, chute expansion/contraction amount, and blower rotation speed are Based on the snow throwing position data memory circuit that stores the calculated snow throwing position and the traveling speed, elapsed time and traveling distance of the rotary snowplow,
Based on the rotary snowplow position calculation circuit that calculates the position of the rotary snowplow, the snow throwing position data memory circuit, and the rotary snowplow position calculation circuit, the cap opening/closing angle, chute rotation angle, and chute expansion/contraction amount of the snow throwing device are calculated. The rotary snowplow vehicle position calculation circuit is equipped with a correction calculation circuit for calculating and a snow removal method data memory circuit for presetting the snow removal work method such as the snow removal position and snow removal method in the snow removal section and storing it as control data. Based on the circuit, the data of the snow removal work method data memory circuit and the snow throwing position data memory circuit are compared and calculated, and the optimal snow throwing position according to the advancing position of the rotary snowplow is continuously and automatically calculated and corrected. A work pattern control device for a rotary snowplow.