JPS647220Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a remote idling control device for a prime mover in a lumber collecting machine.

Conventionally, the logging machines used to collect fallen trees have been installed close to mountain roads, making it impossible to see the logging site completely from the location of the logging machine, and Even if the wood-collecting machine is located at the same location, if mountain fog occurs, visibility will be obstructed, and workers will operate the wood-collecting machine based on their intuition, making the work extremely dangerous. There was a demand for a remote-type lumber collecting machine that could be remotely controlled while the machine was in use.

The present invention was developed in view of the above-mentioned needs, and the purpose is to provide an idling control device for a prime mover in a remote-type lumber collecting machine that allows the lumber collecting machine to be operated from a remote location via a cable. It is an object of the present invention to provide a remote-controlled idling control device that can use the conventional governor of a prime mover as is.

That is, the idling control device for a prime mover of the present invention is provided with an air lock device for stopping or releasing the expansion and contraction movement of the piston rod of the cylinder, and also has an air lock device that stops or releases the expansion and contraction movement of the piston rod.
A plurality of reed switches that can be turned on and off are arranged on the side wall of the cylinder, and the piston position detection signal from the reed switches controls the amount of extension of the cylinder to open and close the fuel valve of the governor by a predetermined amount. This is what I did.

Hereinafter, one embodiment of the idling control device for the prime mover of the remote-type lumber collecting machine of the present invention will be described with reference to the drawings. FIG. The drawing shows a four-barrel type lumber collecting machine, with machine frame 2 standing upright on base 1,
Four winding drums 3a, 3b, 3c, and 3d are rotatably mounted between the two, and a prime mover 4 consisting of a diesel engine is mounted on the base 1. Each of the winding drums 3a, 3b, 3c, and 3d transfers the rotational driving force of the output shaft 5 of the prime mover 4 to a clutch mechanism 6, a transmission 7, a forward/reverse rotation switching mechanism 8, and each winding drum 3.
A, 3b, 3c, 3d side rotationally connected via clutch mechanism 9, each winding drum 3a, 3b, 3
The torque and rotational speed of the motors c and 3d are controlled by the gear switching ratio of the transmission 7 and the output of the prime mover 4.

The idling control device 10 of the present invention, which adjusts the output of the prime mover 4, is installed in parallel with the governor 11 of the prime mover 4, and includes a fuel valve 12 called a throttle valve.
An auto switch cylinder 14 is provided at the end of the link mechanism 13 connected to the fuel valve 12, and the fuel valve 12 is opened and closed by expanding and contracting the auto switch cylinder 14.

That is, as shown in FIG. 4, the auto switch cylinder 14 is provided with supply and exhaust ports 16 and 17 at the front and rear ends of a non-magnetic cylinder 15, and a piston 17 that slides airtightly is inserted into the cylinder 15. and a piston rod 19 extending from the piston 18.
protrudes from one end of the cylinder 15.

The piston 18 is made of a non-magnetic material,
A permanent magnet 20 is embedded in the circumferential groove, and six reed switches RSW1, RSW2...RSW6 are installed in the side wall of the cylinder 15 in the direction of the cylinder.
are arranged, and are turned on and off by the approach and separation of the permanent magnet 20.

Reference numerals 21 and 21 denote air lock devices fixed to the cylinder 15 via a bracket 22, each of which is fitted over the piston rod 19, has an intake/exhaust port 23, and is slidable by tightening the piston rod 19 from the outer periphery using air pressure. The locking mechanism (not shown) that secures the is removed.

The auto switch cylinder 14 and air lock devices 21, 21 are controlled and driven by a control circuit 24 consisting of an air circuit and an electric circuit as shown in FIG. 5, and communicate with two solenoid valves 25a, 25b. The solenoid valves 25a and 25b are operated by switching the air pressure from the air tank 26 to operate the control panel 27 provided at the driver's seat of the base 1, or a remote control panel that can be carried portable via the cable 28 from the control panel 27. It is selectively driven via the control circuit 24 according to the selected position of the idling adjustment knobs 30a, 30b provided in the idling adjustment knob 29. When the idling adjustment knobs 30a, 30b are set, the input of the piston position detection switch circuit 32 including the reed switch RSW is activated. The piston 18 is securely fixed by the air lock devices 21, 21 at the selected reed switch RSW position by a switching circuit 33 consisting of a group of relays connected to each terminal of the signal and idling adjustment knobs 30a, 30b and an up/down changeover switch 34. .

With the above configuration, the fuel valve 1 of the governor 11
Since the auto switch cylinder 14 adjusts the extension and opens/closes the cable 2, the prime mover 4 is connected to the cable 2.
Idling adjustment knob 3 within the range where 8 extends
A suitable idling condition can be obtained with the length that allows the rotation of the winding drums 3a, 3
It becomes possible to remotely control the load on b, 3c, and 3d and the rotational speed associated with switching of the transmission 7 while visually checking it near the material collection site.

As explained above, the present invention is configured so that the fuel supply valve provided on the governor of the prime mover is opened and closed by the expansion and contraction of the auto switch cylinder, and the expansion/contraction position is detected by the reed switch provided on the auto switch cylinder. Since this can be selected from the remote control panel location via the control circuit, it is possible to use the conventional prime mover as is, making it extremely easy to modify, and the simple configuration also prevents malfunctions. It has characteristics such as being unlikely to cause accidents such as

In addition, according to the present invention, it is possible to visually check the wood collection work near the work site, so the stability of the work can be measured and the work efficiency is significantly improved.The practical effects of the present invention are as follows. Extremely large.

[Brief explanation of the drawing]

The drawings show an embodiment of the remote idling control device for the prime mover in the timber collecting machine of the present invention. Figure 1 is a front view of the timber collecting machine, Figure 2 is a plan view of the same, and Figure 3 is a front view of the timber collecting machine.
The figure is a partially cutaway front view of the main part, Figure 4 is a partially cutaway front view of the auto switching cylinder, and Figure 5 is a partially cutaway front view of the auto switching cylinder.
The figure is a control circuit diagram. 1... Base, 2... Machine frame, 3a, 3b, 3c,
3d... Winding drum, 4... Prime mover, 6, 9... Clutch mechanism, 7... Transmission, 8... Forward/reverse switching mechanism, 10... Idling control device, 11
... Governor, 12 ... Fuel valve, 13 ... Link mechanism, 14 ... Auto switch cylinder, 1
5... Cylinder, 18... Piston, 19... Piston rod, 20... Permanent magnet, 21... Air lock device, 24... Control circuit, 25a, 25
b...Solenoid valve, 27...Operation panel, 28
... Cable, 29 ... Remote control panel, 30a, 3
0b...Idling adjustment knob, 32...Piston position detection circuit, 33...Switching circuit, 34
...Raise/lower changeover switch, RSW...Reed switch.

Claims (1)

[Scope of utility model registration request] The rotation ratio of the output shaft of a prime mover consisting of an internal combustion engine such as a diesel engine is changed through a clutch mechanism and transmission, and the rotational force is selectively transmitted to multiple winding drums mounted horizontally on a base. In this wood collecting machine, the fuel supply valve provided in the governor of the prime mover is equipped with a plurality of reed switches in the axial direction of the cylinder wall, and a permanent magnet is installed in a part of the piston to turn the fuel supply valve on and off by moving close to and spaced from the reed switches. The auto switch cylinder is configured to open and close by expanding and contracting, and an aerodynamic device is inserted between the piston rod of the auto switch cylinder and the cylinder, and fluid pressure is applied to the auto switch cylinder and the aerodynamic device via solenoid valves, respectively. and the solenoid valves are driven via a control circuit that moves the piston position to a desired selection position and stops in accordance with the signal from each reed switch, and the selection operation panel is connected to the lumber collecting machine via a cable. A remote idling control device for a prime mover in a lumber collecting machine, characterized in that it can be moved away from the main body.