JPS5829925A - Self-operating device in gas pipe burying equipment - Google Patents

Abstract

PURPOSE:To save manpower to operate and control and to enable saving of labor, by a method wherein, in a gas pipe burying equipment which reciprocates along a gas pipe burying ditch, guide wheels engage the ditch, and the equipment is caused to advance following curve-running of the guide wheels. CONSTITUTION:A vehicle 2, positioned across a ditch 13 and reciprocating over the ditch 13 wherein a gas pipe is planned to be buried, discharges soil and sand in a tank 3 into the ditch 13 for reburying when it runs forward, and consolidates the soil and sand by a rammer 4 when it runs backward. Guide wheels 25 and 26, which engage the ditch 13 and turn in conformity with a curve, are supported to the vehicle 2. Thus, even if the ditch 13 is curved, the guide wheels 25 and 26 follow the ditch, the movement in an axial direction of the guide wheels 25 and 26 is detected, and this causes the guide wheels to run in conformity with the curve of the ditch 13 through the connection and disconnection of running clutches 31 and 32. Even if the ditch 13 is curved, this causes automatic running of the vehicle along the ditch 13 and permits saving of manpower required for maniplation and control.

Description

[Detailed Description of the Invention] This invention aims to improve the efficiency and efficiency of work in gas management equipment that effectively discharges earth and sand into trenches dug for burying gas pipes, etc. underground. This invention relates to an automatic steering system.

The present inventor has previously provided the gas management equipment as described above, and the present invention further provides an automatic steering device for improving the functionality of the gas management equipment.

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

1 and 2 are partially sectional side views of the gas management equipment according to the present invention, and FIG. 3 is a sectional view taken along line x-x' in FIG. 1.

The earth and sand filling machine is equipped with an operating engine section 2 at the top and front of the chassis 1, a tank 3 for loading soil at the rear, and a rammer 4 between the two, and a running section 5 such as a crawler below the chassis 1. It is something to do.

The operating engine section 2 is equipped with an engine and various operating mechanisms, and a screw 7 is installed inside the tank 3 toward the discharge port 6.
is installed, while a blade for dispersing soil and a root wheel 8 are installed slightly above.
．． 8 is also provided. Note that the discharge port 6 may be opened and closed by a lid 9 as appropriate.

In the rammer 4, the rod 11 is lowered from the main body 10, and 1. A hammer 12 is attached to the lower end of the rod 11, and the hammer 12 itself is designed to vibrate up and down.

With this configuration, the go-around work is performed over a fixed distance along the trench 13 dug under the ground.

That is, during forward movement (Fig. 1), the position 9 of the discharge port 6 is open, and the screw 7, impeller 8, 8, etc. are also rotating.
Earth and sand are discharged from the discharge port 6 into the groove 13. After traveling a certain distance, the rammer 4 then goes back, but at this time (FIG. 2) the main body 10 of the rammer 4 lowers and the rammer 12 also vibrates up and down, compacting the discharged earth and sand. This back-and-forth movement and the associated work are repeated several times to complete the work in the section (there are cases where the work is completed in a back-and-forth movement).

By the way, in order to save labor, this gas management equipment is equipped with an automatic go-around device.

FIG. 4 is an explanatory diagram of this automatic go-around device. First, a bottle-like sensor 14, 14 is struck on the ground in order to set the range (usually about 15 m) within which to go back and forth. On the other hand, a pair of detection tools 15.15 is provided on the gas management equipment side as well, and the two detection tools 15.15 are connected by a tie rod 16. A detection piece 17 is installed in the middle.

FIG. 4 shows the state just before the end of the forward movement, but if the forward movement continues, the detection tool 15 will come into contact with the sensor 14, and due to the reaction force will be rotated as shown by the dashed line. At this time, due to the presence of the tie rod 16, the other detection tool 15' is similarly displaced, and the detection piece 17 is also displaced to the position indicated by the chain line, thereby switching the switch 18 to the switch 19. This electrical fluctuation is switched from the forward rotation electromagnetic clutch 21 to the reverse rotation SW clutch 22 via the converter I, and the aircraft shifts from forward travel to go-around travel. We will also be moving from a round trip to an outbound trip. Note that these conversion operations can be performed manually by operating a switching lever connected to the tie rod 16, and of course a stopping operation that does not perform either forward or backward movement is also possible.

The configuration of the thin tube 4 shown in FIG.
．． 15 may be applied directly to the forward/reverse switching lever.

Next, even if the groove 13 is curved, an automatic steering device is installed to follow it.

An example of this is shown in Figures 5 and 6, in which the front, rear, or both parts of the aircraft are equipped with guidance sections that fit tightly into the grooves 13, thereby forcing the aircraft to steer. There may be.

On the other hand, Fig. 7 shows another example, where the guide wheel is divided into two parts F.
! ! 25 and 26, and are pressed against the side wall of the groove 13 by a spring 27 or the like, and the left and right guide wheels 25 and 25 are made to be able to move independently in the axial direction depending on changes in lateral pressure. And a switch group 4 that can catch the axial movement of these left and right guide wheels 25,
4 is installed and connected to the latch 31.32 that runs from side to side of the machine via the converter side, thereby cutting off the connection of the latch 31.32 that runs on the side where the side pressure is reduced,
On the other hand, the latch that runs on the side where the lateral pressure is greater 31.32
The groove 13 is made to follow the bending of the groove 13 by, for example, maintaining the connection.

Note that the above example is also an example, and the clutches 31, 32 may be turned on and off by an appropriate mechanical structure to displace the guide wheels 25, 26, or drive sources on the left and right sides may be provided, The driving source may be directly controlled.

As described above, the present invention is a self-propelled vehicle that reciprocates a certain distance along a gas management groove 13, and discharges the earth and sand loaded in the tank 3 into the groove 13 when going back, and when going back, In a gas management equipment that compacts released earth and sand with a rammer 4, guide wheels 24, 25.
26 into the groove 13, and the guide wheels 24.251.
The present invention provides an automatic steering system that allows the aircraft to advance in accordance with the 26 rotations.

Therefore, since a person is not required for steering operation, labor is saved, work is stabilized, and performance is improved.

Furthermore, since the degree to which people touch the aircraft body may be small, dangers can be prevented and safety can be ensured.

In addition, various excellent effects can be expected, such as a simple structure, no interference with manual operation, and no interference with the versatility of the machine.

[Brief explanation of the drawing]

Figures 1 and 2 are partial cross-sectional side views of gas management equipment;
The figure is a sectional view taken along the line x-l in FIG. 1, FIG. 4 is an explanatory diagram of an automatic go-around system according to the present invention, and FIGS. 5 to 7 are explanatory diagrams of an automatic steering system. (Signs) 3... Tank 4... Rammer 13... Groove, 25, Envy... Guide wheel 31. 32... Right and left Kugucci Applicant Seirei Kogyo Co., Ltd. Agent ( 8103) Patent attorney Eiji Omura

Claims (1)

[Scope of Claims] ■ A self-propelled vehicle that travels back and forth a certain distance along a gas management trench, and when going out, releases earth and sand loaded in a tank into the trench, and when going back, In gas management equipment that uses rammers to compact ejected earth and sand, an automatic steering device that inserts a guide wheel into a groove to follow the curve of the groove and moves the aircraft as the guide wheel rotates. ■・Press the two guide wheels into contact with the side walls of the groove,
The automatic steering device according to claim 0, wherein the left and right clutches are appropriately controlled by sensing this side pressure to cause the steering to proceed along the curve of the groove.