JPS6358963B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention provides a gas pipe burying machine that effectively discharges earth and sand into a trench dug for burying gas pipes, etc. underground, in order to improve work efficiency and save labor. This invention relates to automatic steering devices.

The present inventor has provided a gas pipe burying machine as described above, and the present invention further provides an automatic steering device for enhancing the functions of this gas pipe burying machine.

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

1 and 2 are partially sectional side views of a gas pipe burying machine according to the present invention, and FIG. 3 is a sectional view taken along the 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 sand at the rear, a rammer 4 between the two, and a running section 5 such as a crawler below the chassis 1. It is something.

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

The rammer 4 has a rod 11 descending from a main body 10, and 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 trench 1 dug under the ground
3, and work back and forth for a certain distance.

That is, during the forward movement (FIG. 1), the cover 9 of the discharge port 6 is opened, the screw 7, impellers 8, 8', etc. are also rotating, and the earth and sand is discharged from the discharge port 6 into the groove 13. . Then, after going a certain distance, it will go back again, but at this time (Figure 2) the rammer 4
The main body 10 is lowered, and the nail 12 also vibrates up and down, compacting the discharged earth and sand. This back-and-forth movement and the accompanying work are repeated several times to complete the work in the section (sometimes it can be completed in one round-trip).

By the way, in order to save labor, this gas pipe burying machine is equipped with an automatic reciprocating device.

FIG. 4 is an explanatory diagram of this automatic reciprocating device. First, sensors 14 and 14', such as stakes, are driven into the ground in order to set the range (usually about 15 m) to be reciprocated. On the other hand, a pair of detection tools 15, 15' are provided on the gas pipe burying machine side as well.
15' are connected by a tie rod 16, and 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 movement continues as it is, 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 electromagnetic clutch 22 via the converter 30, and the aircraft shifts from going forward to going home. Also, when the vehicle shifts from going back to going out, the detection device 15' senses the presence of the sensor 14'. Note that these conversion operations can also be performed manually by using the switching lever 23 connected to the tie rod 16.
Of course, it is also possible to perform a stop operation that does not perform either forward or backward movement. In addition, the configuration shown in FIG. 4 is an example, and the present invention is not limited thereto. It may be something.

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

As shown in Figures 5 and 6, a guide wheel 24 that fits tightly into the groove 113 is installed on the front, rear, or both of the aircraft, and this forcibly steers the aircraft. It may also be something that allows you to do so.

On the other hand, FIG. 7 shows another example in which the guide wheel is divided into two types 25 and 26, each of which is pressed against the side wall of the groove 13 by a spring 27 or the like, and which is controlled by changing the side pressure. Left and right guide wheels 25,2
6 can be moved independently in the axial direction. And a group of switches 28, 29 that can catch the axial movement of these left and right guide wheels 25, 26.
is installed and connected via a converter 30 to left and right running clutches 31 and 32 of the machine. As a result, the running clutch 31 on the side where the side pressure is reduced,
32 is disconnected, and conversely, the traveling clutches 31 and 32 on the side where the side pressure is increased are kept connected, so as to follow the bending of the groove 13.

Note that the above example is also an example, and the guide wheels 25,
The clutches 31 and 32 may be turned on and off using an appropriate mechanical structure, or separate left and right drive sources may be provided and the drive sources may be directly controlled.

As described above, the present invention is a self-propelled vehicle that reciprocates a certain distance along a gas pipe buried trench 13, and when going back and forth, discharges earth and sand loaded in the tank 3 into the trench 13, and when going back, In a gas pipe burying machine that rams discharged earth and sand with a rammer 4, guide wheels 24, 25, and 26 are installed in the groove 13 to follow the curve of the groove 13.
The present invention provides an automatic steering device that is fitted into the guide wheels 24, 25, and 26 and moves the aircraft as the guide wheels 24, 25, and 26 curve.

Therefore, first of all, there is no need for a person to operate the steering, which not only saves labor but also stabilizes the work.
Improves efficiency.

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.

Furthermore, according to this invention, by making the width of the guide wheel and the discharge width of the earth and sand discharge port approximately equal, when driving and discharging earth and sand, it is possible to prevent the earth and sand from being discharged outside the buried trench, making it easy to use. Although it has a simple structure, it is possible to work reliably and work efficiency is high.In addition, the rammer can be placed on the center side of the aircraft adjacent to the tank.
In addition, by positioning it on the guide wheel side, when the rammer compacts the soil in the trench, the vibrations will not cause the front and rear of the machine to swing and shift, and as a result, lateral pressure torque is also applied to the guide wheel. This has the advantage that it is stable without any action and therefore allows smooth running without applying the brakes.

[Brief explanation of the drawing]

1 and 2 are partially sectional side views of the gas pipe burying machine, FIG. 3 is a sectional view taken along line X-X' in FIG. 1, and FIG. 4 is an explanatory diagram of the automatic reciprocating device according to the present invention. FIGS. 5 to 7 are explanatory views of the automatic steering system. Code, 3...tank, 4...rammer, 13...
... Groove, 24, 25, 26 ... Guide wheel, 31, 32
...Left and right clutch.

Claims (1)

[Claims] 1 A dirt tank and a rammer are installed on the traveling aircraft, the dirt tank is provided with an outlet for discharging the dirt in the tank, and the rammer is a gas pipe burying machine configured to be able to compact the discharged dirt. In contrast, it has a width that approximately matches the width of a buried trench that has been excavated and formed in advance from a predetermined position on the aircraft,
Further, a guide wheel that can be fitted into the buried groove is provided so as to protrude through an appropriate support so that it can be fitted into the groove, and the width of the guide wheel and the discharge width of the earth and sand discharge port are made approximately equal. Further, an automatic steering device for a gas pipe burial machine, wherein the rammer is located on the center side of the machine body adjacent to the tank and on the side of the guide wheel.