JP3215259B2 - Launching device for self-propelled drilling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a launching apparatus for a self-propelled drilling machine, and more particularly to a self-propelled drilling machine that can automatically launch in a precise penetration direction, and has little wear on the drilling machine and the launching apparatus. The present invention relates to a launching device for a self-propelled drilling machine that can reduce the time required for the machine to enter the soil.

[0002]

2. Description of the Related Art Self-propelled drilling machines are used when drilling holes for burying gas or water pipes in the ground, for example, and pneumatic ones using compressed air as a driving fluid.
There is a hydraulic type using pressure oil as a driving fluid. This drilling machine is prevented from reversing in the soil by receiving the reaction force at the time of propulsion by the soil, but at the start of drilling, it determines the drilling direction and also prevents reverse movement and It is necessary to start.

For this reason, for example, in a starter assisting device for a drilling device (hereinafter referred to as a first conventional example) disclosed in Japanese Patent Publication No. 56-11039, as shown in FIG.
1 and a carriage 103 supported by the bottom plate 102. The drilling device 104 supported by the carriage 103 is prevented from moving backward by the braking device 105, and the bottom plate of the carriage 103 is prevented. The angle around the vertical and horizontal axes with respect to 102 can be adjusted.

The braking device 105 includes a braking roll 106 which is frictionally engaged with the drilling machine 104, is rotatable in a direction in which the drilling machine 104 moves forward, and is stopped in a direction in which the drilling machine 104 moves backward. Japanese Patent Publication No. 54-18486 discloses a mounting device (hereinafter referred to as a second conventional example) used when driving a pneumatic self-propelled drilling machine into the soil. As shown in FIG. 5, a table 202 fixed to the ground by an anchor 201, a turntable 203 supported rotatably about a vertical axis of the table 202, and a turntable about a horizontal axis of the turntable 203 Gantry 204 supported by
A parallel link 205/206 rotatably connected around an axis parallel to the horizontal rotation axis of the mounting base 204 at the front portion of the mounting base 204, and the parallel link 205/206 is parallel to the horizontal rotation axis of the mounting base 204. A pair of upper and lower clamps 207, 208 rotatably connected around a central axis, a tension spring 209 for urging the two clamps 207, 208 in the closing direction via the parallel links 205, 206; Support 21 on the rear of 204
0, and the self-propelled drilling machine 211
-It is inserted between 208 and placed on the support boat 210.

In this mounting apparatus, when the drilling machine 211 moves forward, the two clamps 207, 208 are driven forward by the propulsive force of the drilling machine 211. When the drill 211 moves forward and the drill 211 tries to reverse, the reverse propulsion drives the clamps 207 and 208 backward, narrowing the gap between the clamps 207 and 208, and the drill 211 is strongly pinched. As a result, the drilling machine 211 is prevented from moving backward by the frictional force.

[0006]

In the first prior art, the reverse movement of the drilling machine 104 is prevented by the friction between the brake roll 106 whose rotation has stopped and the drilling machine 104. Both 104 and 104 have undesirable wear. Also, the friction between the braking roll 106 and the drilling machine 104 merely receives the reaction force of the drilling machine 104, and the force for actively pushing the drilling machine 104 into the soil is not given to the drilling machine 104. The advance of the drilling machine 104 is slow, and it takes a long time to penetrate into the soil.

In the second conventional example, the clamp 207
The friction between the drill 208 and the drill 211 prevents the drill 211 from reversing, so that both the clamps 207 and 208 and the drill 211 are undesirably worn. Also, clamps 207 and 20
The friction between the drilling machine 211 and the drilling machine 211 merely receives the reaction force of the drilling machine 211, and the force for pushing the drilling machine 211 is not given to the drilling machine 211. It takes a long time to penetrate the soil.

In the first and second prior art examples, the drilling machine
It is conceivable that the worker pushes the drilling machine 104/211 from behind in order to increase the forward speed of the 104/211 and to reduce the time required to penetrate the soil. It is necessary to ensure that the drilling trench from the drilling machine 10
When starting 4 ・ 211, it is necessary to cut a large excavation groove, which greatly increases the construction cost, makes it easy for the drilling direction to be out of order, and gives the operator a drilling machine.
1 gives great pain due to vibration.

In view of the above circumstances, the present invention can automatically start a self-propelled drilling machine in an accurate penetration direction, reduce the wear of the drilling machine and the starting device, and furthermore, keep the drilling machine in the soil. It is an object of the present invention to provide a launching device for a self-propelled drilling machine which can reduce the time for drilling.

[0010]

In order to achieve the above object, a starting device for a self-propelled drilling machine according to the present invention has a grounding frame fixed to the ground and a self-propelled drilling machine supported by the grounding frame. A starting guide frame on which the machine is mounted, a holding frame for preventing the drilling machine mounted on the starting guide frame from dropping from the starting guide frame, and the punching machine mounted on the starting guide frame. A starting device for a self-propelled drilling machine, comprising a pushing force applying means for urging in a forward direction.

[0011]

In the present invention, the reverse movement of the drilling machine mounted on the starting guide frame is prevented by the urging force of the pushing force applying means. There is no need to rub the device and wear on the drilling and launching equipment can be significantly reduced. Also,
Since the punch is positively pushed in the forward direction by the urging force of the pushing force applying means, the time required for the punch to enter the soil can be reduced.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a starting device for a self-propelled drilling machine according to an embodiment of the present invention. As shown in the side view of FIG. 1 and the plan view of FIG. 2, a starting device of a self-propelled drilling machine according to one embodiment of the present invention includes a grounding frame 2 fixed to the ground by an anchor 1.
The starting guide frame 4 supported by the grounding frame 2 and on which the self-propelled drilling machine 3 is mounted, and the drilling machine 3 mounted on the starting guide frame 4 falling off from the starting guide frame 4. A pair of pressing frames 5 and 6 to prevent the starting guide frame 4
And a pushing force applying means 7 for urging the drilling machine 3 mounted on the machine in the forward direction.

Although not particularly limited, the grounding frame 2 is formed in a plate shape in order to reduce the grounding pressure, and has boss portions 8 through which the anchor 1 is inserted at six positions at the front, rear, left and right sides of the right and left sides. I have. Handles 9 for carrying the starting device are provided on the left and right sides of the grounding frame 2. The starting guide frame 4 is arranged above the grounding frame 2. The starting guide frame 4 can be fixed to the grounding frame 2. However, in order to finely adjust the penetration direction of the drilling machine 3, the starting guide frame 4 has a horizontal axis and a vertical axis with respect to the grounding frame 2. It is supported on the grounding frame 2 so as to be rotatable around.

The structure in which the starting guide frame 4 is supported on the grounding frame 2 so as to be rotatable around the horizontal axis and the vertical axis is not particularly limited. For example, the rotary table is rotatable around the vertical axis on the grounding frame 2. May be supported, and the start guide frame 4 may be supported on the rotary table so as to be rotatable around the horizontal axis. However, in this embodiment, in order to reduce the movement of the tip of the drilling machine 3 when the penetration direction of the drilling machine 3 is adjusted and to reduce the error of the drilling position of the drilling machine 3, the front end of the starting guide frame 4 is required. For example, it is connected to the grounding frame 2 so as to be rotatable around a horizontal axis and a vertical axis by a ball joint 10, and an intermediate portion (or a rear end) of the starting guide frame 4 in the front-rear direction can be moved up and down by an adjusting mechanism 11. And it is supported by the grounding frame 2 so as to be movable in the left-right direction.

The front and back length of the starting guide frame 4 may be longer than necessary to guide the propulsion of the drilling machine 3 in the penetration direction. In order to prevent lifting of the drilling machine 3 from the starting guide frame 4 by the front and rear holding frames 5 and 6 until the propulsion becomes possible, the front and rear length of the starting guide frame 4 is set to about 50 times the entire length of the drilling machine 3.
Over a percent.

The adjusting mechanism 11 can move up and down the rear end of the starting guide frame 4 and can move in the left-right direction.
In this embodiment, a guide roller 31 for guiding the wire 26 of the punching machine removing device 25 is attached to the rear end of the starting guide frame 4 as described later. For this purpose, the intermediate portion of the start guide frame 4 in the front-rear direction is supported on the grounding frame 2 so as to be able to move up and down and move in the left-right direction.

That is, in this embodiment, a pair of left and right vertical adjustment screws 12 are operated to raise and lower the middle portion of the starting guide frame 4 in the front-rear direction, and a pair of left and right horizontal adjustment screws 13 are operated. An intermediate portion of the starting guide frame 4 in the front-rear direction is moved left and right. Of the holding frames 5 and 6,
The front holding frame 5 is connected to the starting guide frame 4 via the hinge 14.
The start guide frame 4 can be opened and closed between an open position where the upper side of the vehicle is opened and a closed position that covers the upper side of the start guide frame 4.
Linked to Further, as shown in FIG. 2, the holding frame 5 can be fixed to the starting guide frame 4 by bolts 15 in the closed position.

The rear holding frame 6 is attached to the starting guide frame 4 from above the boring machine 3 by means of thumb screws 23. The pressing frame 6 is formed integrally with a cover 24 that covers the outside of the spring 16 of the pressing force applying means 7 in the left-right direction. The pushing force applying means 7 includes a spring 16, a thumb screw 17 for engaging one end of the spring 16 with the starting guide frame 4, a hook 18 and a pin 19 connected to the other end of the spring 16, and another Pin 20
And a spring receiver 21 attached to the rear end of the drilling machine 3 placed on the starting guide frame 4.

In the case of performing drilling work using this starting device, for example, the grounding frame 2 is roughly positioned in the drilling direction and placed on the ground, for example, the bottom surface of a cut groove, and the grounding frame 2 is moved from the boss 8 to the ground. And anchor 1 is fixed to the ground. Thereafter, the bolts 15 are loosened to open the holding frame 5, the holding frame 6 is removed, the drilling machine 3 is placed on the starting guide frame 4, the holding frame 5 is closed, and the holding frame 5 is bolted.
At 15, it is fixed to the starting guide frame 4, and the boring machine 3 is brought into tight contact with the starting guide frame 4 and the holding frame 5. After that, one end of the spring 16 is engaged with the thumb screw 17 screwed to the starting guide frame 4, and the spring receiver 21 is put on the rear end of the drilling machine 3. The hook 16 is engaged with the pin 20 provided on the spring receiver 21, and the spring 16 is mounted between the starting guide frame 4 and the spring receiver 21. In this manner, the spring 16 is mounted between the starting guide frame 4 and the spring receiver 21, and the holding frame 6 is attached to the thumbscrew 23.
To lightly attach to the starting guide frame 4.

In this state, the adjusting mechanism 11 is operated to finely adjust the elevation angle or depression angle in the penetration direction and the azimuth on the plane, and then the two pressure oil hoses connected to the rear end of the drilling machine 3 are connected. The pressurized oil is supplied to and discharged from the drilling machine 3 via the drilling machine 3, and the drilling machine 3 is operated.
At this time, the screw 15 is loosened to a close contact state without pressing force. When the rear end of the drilling machine 3 passes through the rear end of the starting guide frame 4, the operation of the drilling machine 3 is temporarily stopped because the drilling machine 3 is in the soil to such an extent that it can be self-propelled. The frame 6 and the pushing force applying means 7 are disassembled and removed. Further, the punching machine removing device 25 shown in FIG. 3 is assembled to the grounding frame 2, and the wire 26 of the punching machine removing device 25 is connected to the rear end of the punching machine 3. Connect to At this point, it is not necessary to securely fix the boring machine removing device 25 to the grounding frame 2.

As shown in FIGS. 1 to 3, a pin 28 for engaging the frame 27 of the punching machine removing device 25 and a bolt 29 for fixing the frame 27 to the grounding frame are screwed into the rear portion of the grounding frame 2. A screw hole 30 is formed. A guide roller 31 for guiding the wire 26 is fixed to the rear part of the start guide frame 4 so as to be disassembled. The frame of this drilling machine removal device 25
At the bottom of 27, a manual winch that winds the wire 26
32 is supported, and a support fitting device 34 is provided between the upper end of the frame 27 and the soil end face 33 as necessary. The support fitting device 34 includes a mounting pin 35 fixed to the upper end of the frame 27.
And a support fitting main body 36 externally inserted into the mounting pin 35, and a contact fitting 37 abutting on the soil end face 33 and screwed to the support fitting main body 36. Handle 38 is provided.

When the propulsion of the drilling machine 3 is hindered by a solid rock or the like or when the drilling is completed, the bolts 29 of the drilling machine removing device 25 are tightened to securely fix the drilling machine removing device 25 to the grounding frame 2, Further, a guide roller 31 is provided at the rear of the starting guide frame 4.
After assembling, the winch 32 is operated to remove the drilling machine 3 from the perforation hole 39. According to the work procedure as described above, the drilling machine 3 can be mounted on the starting device by lowering the drilling machine 3 from above with the front holding frame 5 opened and the rear holding frame 6 removed, so that the starting device Drilling machine 3 behind
No space is needed for workers to hold down
For example, in the case of performing a drilling operation by installing a starting device at the bottom of a cutting groove, the entire length of the drilling machine 3, the front-rear length enough to pipe two hydraulic hoses to the drilling machine 3, the lateral width of the starting device, and It is sufficient to excavate a relatively narrow cut groove having a width on the left and right sides of the starting device that has a space for installation of the starting device and operation of the winch, so that the excavation cost can be reduced.

Further, the drilling machine 3 can be mounted on the starting device by opening the front holding frame 5 and lowering the drilling machine 3 from above with the rear holding frame 6 removed.
The boring machine 3 can be mounted on the starting device in a short time with a simple mounting operation. In addition, when the penetration direction of the drilling machine 3 is finely adjusted, the amount of movement of the tip of the drilling machine 3 is small, so that the drilling machine 3 can penetrate the soil from an accurate penetration position.

When the operation of the drilling machine 3 starts, the spring 16
Positively urges the drilling machine 3 in the drilling direction, so that the biasing force of the spring 16 opposes the reaction force at the time of propulsion of the drilling machine 3 and prevents the drilling machine 3 from moving backward. Wear of the punch 3 and the starting device, particularly the starting guide frame 4 and the front and rear holding frames 5 and 6 of the starting device is significantly reduced, and the durability of the drill 3 and the starting device is enhanced.

Further, since the drilling machine 3 is pushed into the soil by the biasing force of the spring 16, the drilling machine 3 enters the soil in a short time, and the biasing direction of the spring 16 is stable. There is no possibility that the penetration direction of the drill 3 will be disturbed, the drilling machine 3 can be accurately penetrated in the penetration direction, and the operator does not need to receive the vibration of the drilling machine 3. Further, when the drilling machine 3 is penetrated to the extent that it can be self-propelled into the soil, the rear holding frame 6 and the pushing force applying means 7 are removed, and the drilling machine removal device 25 is assembled to the grounding frame 2 of the starting device. At the time of shifting from the drilling operation by the drilling machine 3 to the drilling machine removing operation, the bolt 29 is tightened and the drilling machine removing device 25 is securely connected to the grounding frame 2.
Work and fixing the guide roller 31 to the starting guide frame 4 are all that is required.
If the boring machine removal device 25 is tightened with the bolt 29 when assembling the device, the operation of tightening the bolt 29 becomes unnecessary. Therefore, in each of the above-described conventional examples, the entire starting device is removed and the punching machine removal device 25 is installed when the operation shifts from the drilling operation to the punching machine removal operation, whereas the shift from the drilling operation to the punching machine removal operation is performed. Can be performed in a very short time.

At the end of the boring machine removal operation, the boring machine 3 is pulled back onto the starting guide frame 4 and is held by the front holding frame 5 so as not to float from the starting guide frame 4. 2 with the drilling machine removal device 25 assembled, and with the drilling machine 3 connected to the wire 26 of the drilling machine removal device 25, the starting device, the anchor 1, the drilling machine removal device 25 and the drilling machine 3 are drilled at once. For example, a backhoe, a crane mounted on a vehicle, or the like can be used to remove the drilling machine 25 and the starting device. The removal operation of the starting device, the anchor 1, the drilling machine removing device 25, and the boring device can be easily performed in a short time. Machine 3 can be removed.

[0027]

As described above, the present invention relates to a grounding frame fixed to the ground, a starting guide frame supported by the grounding frame and on which a self-propelled drilling machine is mounted, and a starting guide frame. Since a pressing frame for preventing the drilling machine mounted on the starting guide frame from dropping off from the starting guide frame and a pressing force applying means for urging the drilling machine mounted on the starting guide frame in the forward direction are provided. The effect is as follows.

Since the drilling machine is accurately urged in the forward direction by the pushing force applying means without using the operator's hand, the drilling machine is mounted on the starting guide frame and the holding frame is prevented from dropping from the starting guide frame. When the drill is operated, the pushing force applying means has the effect of automatically starting in the correct penetration direction against the reaction force at the time of propulsion of the drill. Further, since the pushing force applying means prevents the drilling machine from reversing against the reaction force at the time of propulsion of the drilling machine, the wear of the drilling machine and the starting device is small, and the durability of the drilling machine and the starting device is improved. In addition, it is possible to prevent a decrease in the control accuracy of the penetration direction control of the starting device for a long period of time.

Further, since the drilling machine is constantly urged in the forward direction by the pushing force applying means, the time until the drilling machine enters the soil can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention.

FIG. 2 is a plan view of one embodiment of the present invention.

FIG. 3 is a side view of the boring machine removing device assembled in one embodiment of the present invention.

FIG. 4 is a perspective view of a first conventional example.

FIG. 5 is a perspective view of a second conventional example.

[Explanation of symbols]

2. Ground contact frame 3. Drilling machine 4. Starting guide frame and starting guide of the drilling machine mounted on the starting guide frame 5. 6. Pressing frame 7. Pressing force applying means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-188588 (JP, U) JP-A 52-8908 (JP, U) JP-B-56-11039 (JP, B2) JP-B-54 18486 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) E21B 7/26

Claims (1)

(57) [Claims] 1. A grounding frame fixed to the ground, a starting guide frame supported by the grounding frame, and on which a self-propelled drilling machine is mounted, and a start of the drilling machine mounted on the starting guide frame. A self-propelled drilling machine, comprising: a holding frame for preventing the drilling machine from falling off from the guide frame; and pushing force applying means for urging the drilling machine mounted on the starting guide frame in a forward direction. apparatus.