CN100421848C - Underwater pipe drilling machine with controllable feed depth - Google Patents

Abstract

The invention discloses an underwater pipeline drilling machine capable of controlling the feeding depth, which comprises: a housing, a main shaft and a main shaft sleeve are arranged in the center of the housing along the axial direction, and a The lower part of the housing is provided with a main transmission box, and the upper part of the housing is provided with a feed box; the main transmission box is provided with a main drive motor and a transmission gear that transmits the power of the main drive motor to the main shaft sleeve; the feed The box is provided with a main shaft driving assembly for transmitting the rotation of the main shaft sleeve to move the main shaft, and a feed depth positioning assembly for positioning the drilling depth of the drilling knife; the bottom end of the main shaft is provided with a drilling knife. The present invention can set the feed depth of the hole drilling machine by adjusting the position of the dial before the hole drilling operation when the hole drilling operation is carried out under water with poor visibility; when the hole drilling machine is working, the hole drilling knife reaches When the drilling depth is set, the drilling machine can automatically stop the feeding movement, which meets the requirements of underwater drilling operations.

Description

Underwater pipe drilling machine with controllable feed depth

technical field

The invention relates to a pipeline drilling machine, in particular to an underwater pipeline drilling machine which can set the drilling depth and automatically stops drilling when the set drilling depth is reached.

Background technique

At present, the feeding depth of the pipeline drilling machine is mainly indicated by a scale rod with a scale or an instrument, and the operator judges the drilling depth of the pipeline drilling machine according to the read indication value. When the drilling machine reaches the required drilling depth, the operator needs to operate the pipeline drilling machine to stop drilling.

The traditional pipe drilling machine can be barely used when drilling on land, but when the pipeline drilling operation is carried out underwater, due to the poor visibility underwater, it is generally impossible to directly observe the drilling of the pipeline drilling machine Therefore, a drilling machine that reaches the set drilling depth and can automatically stop drilling is needed to meet the requirements of underwater drilling operations.

Contents of the invention

The object of the present invention is to provide an underwater pipeline drilling machine which has simple structure, easy operation, can set the drilling depth, and automatically stops drilling after reaching the set drilling depth.

In order to achieve the above object, the present invention adopts a technical solution: an underwater pipeline drilling machine capable of controlling the feed depth, which includes: a housing, a main shaft and a main shaft sleeve are arranged in the center of the housing along the axial direction. The main shaft and the main shaft sleeve are connected by a sliding key, the lower part of the housing is provided with a main transmission box, and the upper part of the housing is provided with a feed box; the main transmission box is provided with a main drive motor, and the power of the main drive motor The transmission gear transmitted to the main shaft sleeve; the feed box is provided with a main shaft drive assembly that transmits the rotation of the main shaft sleeve to make the main shaft move, and a feed depth positioning assembly that positions the drilling depth of the coring knife; The bottom end of the main shaft is provided with a hole cutter.

In actual operation, on the output shaft of the main drive motor on the main transmission box, a first gear and a second gear are slidably arranged; the lower end of the outer wall of the main shaft sleeve is provided with a third gear and a fourth gear , the third gear corresponds to the first gear, and the fourth gear corresponds to the second gear; through the sliding of the first gear and the second gear, the first gear can be meshed with the third gear or the second gear can be connected to the second gear. The fourth gear meshes transmission. The outer wall of the main transmission case is provided with a speed change switch that drives the first gear and the second gear to slide, so that the first gear and the third gear are meshed for transmission or the second gear is meshed with the fourth gear for transmission.

In the above-mentioned underwater pipeline drilling machine with controllable feed depth, the top end of the main shaft sleeve extends into the feed box; the main shaft drive assembly includes a fifth gear arranged on the top of the main shaft sleeve, A fixed shaft is provided in the feed box. Rotating on the fixed shaft is provided with a sixth gear, a seventh gear, a tenth gear and an eleventh gear, wherein the sixth gear is fixedly connected to the seventh gear, and the tenth gear is fixedly connected to the eleventh gear; The gear meshes with the fifth gear, and the seventh gear meshes with an eighth gear arranged on a safety clutch. The safety clutch is sleeved on a rotating shaft, and the eighth gear rotates on the rotating shaft. The other side of the shaft is also fixedly provided with a ninth gear, which meshes with the tenth gear; the center of the top of the main shaft is provided with a threaded nut, and the upper part of the main shaft is provided with a threaded screw through which the threaded nut is matched. The shaft of the bar is arranged rollingly between the top of the main shaft sleeve and the feed box, and a twelfth gear is fixedly connected to the shaft, and the twelfth gear meshes with the eleventh gear. In addition, the two ends of the rotating shaft respectively extend out of the feed box, and a hand wheel is provided at the end close to the eighth gear, and a fast drive motor is connected to the end close to the ninth gear; The number of teeth of the seventh gear and the tenth gear is different, and it has a certain difference in the number of teeth.

In the above-mentioned underwater pipeline drilling machine with controllable feed depth, the feed depth positioning assembly includes a thirteenth gear meshed with the twelfth gear, a fifteenth gear meshed with the fifth gear, and A fourteenth gear meshed with the thirteenth gear, a set of differential gears is arranged between the fourteenth gear and the fifteenth gear; the output end of the differential gear is decelerated by a set of reduction gears and then connected to a Worm screw, worm gear, the shaft of the worm gear is connected with a dial outside the feeding box to indicate the feeding depth of the drilling machine main shaft. The central shaft of the dial is provided with a large gear, the large gear meshes with a small gear, the gear shaft of the pinion extends out of the dial and is matched with a locking disc, locking the locking disc can make the small gear The gear shaft of the gear cannot rotate; the outer circle of the dial is provided with a cam, and the clutch is connected with a push fork corresponding to the cam.

In the above-mentioned underwater pipeline drilling machine capable of controlling the feeding depth, the main drive motor is a hydraulic motor, and the clutch is a jaw type safety clutch.

The present invention has the following advantages due to the adoption of the above design:

1. The feeding depth of the present invention can be displayed on the dial outside the feeding box, which avoids the problem that the height of the drilling machine is too high when a scale rod is used to indicate the feeding depth.

2. The present invention can set the feeding depth of the drilling machine by adjusting the position of the dial before the drilling operation when the drilling operation is performed under water with poor visibility; when the drilling machine is working, the drilling When the knife reaches the set drilling depth, the drilling machine can automatically stop the feeding movement, which meets the requirements of underwater drilling operations.

3. The setting of the feed depth in the present invention is simple and convenient.

4. When the feed force of the main shaft is too large or the main shaft moves to the limit position at both ends, the safety clutch can be opened automatically to prevent equipment damage.

Description of drawings

Fig. 1 is the structural appearance schematic diagram of the present invention

Figure 2 is the right view of Figure 1

Fig. 3 is the internal structure schematic diagram of the present invention

Figure 4 is a sectional view of E-E in Figure 1

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, it is a kind of underwater pipeline drilling machine that can control the feed depth provided by the present invention, and it includes:

A housing 1, the center of the housing 1 is provided with a main shaft 2 and a main shaft sleeve 3 along the axial direction, the main shaft 2 and the main shaft sleeve 3 are connected by sliding keys, and the lower part of the housing 1 is provided with a main transmission box 11, The upper part of the housing 1 is provided with a feed box 12;

The main transmission box 11 is provided with a main drive motor 13, and a transmission gear that transmits the power of the main drive motor 13 to the main shaft sleeve;

The feed box 12 is provided with a spindle drive assembly for transmitting the rotation of the spindle sleeve 3 to move the spindle, and a feed depth positioning assembly for positioning the drilling depth of the hole cutter;

The bottom end of the main shaft 2 is provided with a hole cutter (not shown in the drawing of the hole cutter).

In the present invention, on the output shaft of the main drive motor 13 on the main transmission box 11, the first gear Z1 and the second gear Z2 are slidably arranged; the lower end of the outer wall of the main shaft sleeve 3 is provided with the third gear Z3 and the second gear. Four gears Z4, the third gear Z3 corresponds to the first gear Z1, and the fourth gear Z4 corresponds to the second gear Z2; through the sliding of the first gear Z1 and the second gear Z2, the first gear Z1 and the second gear Z2 can be made to The third gear Z3 is meshed for transmission or the second gear Z2 is meshed with the fourth gear Z4 for transmission. Specifically, the outer wall of the main transmission box 11 is provided with a device that drives the first gear Z1 and the second gear Z2 to slide, so that the first gear Z1 and the third gear Z3 are meshed for transmission or the second gear Z2 is meshed with the fourth gear Z4 Transmission shift switch 14. Toggle the variable speed switch 14 to adjust the meshing of different groups of gears, so as to achieve the purpose of changing the rotating speed.

In the present invention, the top of the main shaft sleeve 3 extends into the feed box 12; the main shaft driving assembly includes a fifth gear Z5 arranged on the top of the main shaft sleeve 3, and a fixed shaft 15 arranged in the feed box. Rotating on the fixed shaft 15 are the sixth gear Z6, the seventh gear Z7, the tenth gear Z10 and the eleventh gear Z11, wherein the sixth gear Z6 is fixedly connected to the seventh gear Z7, and the tenth gear Z10 is connected to the tenth gear. A gear Z11 is fixedly connected; the sixth gear Z6 meshes with the fifth gear Z5, and the seventh gear Z7 meshes with an eighth gear Z8 arranged on a safety clutch 6, and the safety clutch 6 is sleeved on a rotating shaft 16 The eighth gear Z8 is set on the rotating shaft 16 for rotation, and a ninth gear Z9 is fixedly connected to the other side of the rotating shaft 16, and the ninth gear Z9 meshes with the tenth gear Z10.

Both ends of the above-mentioned rotating shaft 16 extend out of the feed box 12 respectively, and a hand wheel 17 is provided at one end close to the eighth gear Z8, and a fast drive motor 18 is connected to one end close to the ninth gear Z9.

In addition, the center of the top of the main shaft 2 is provided with a threaded nut 21, and the top of the main shaft 2 is provided with a threaded screw 22 in cooperation with the threaded nut 21. There is a twelfth gear Z12 fixedly connected to the shaft 5, and the twelfth gear Z12 meshes with the eleventh gear Z11. Generally speaking, the number of teeth of the seventh gear Z7 on the fixed shaft 15 is different from that of the tenth gear Z10, and there is a certain difference in the number of teeth, so that the screw nut 21 on the main shaft 2 and the lead screw 22 produce differential motion, thereby realizing The low-speed working feed movement of the main shaft 2; in addition, when the feed force is too large, the safety clutch 6 is opened to prevent equipment damage.

In the present invention, the feed depth positioning assembly includes a thirteenth gear Z13 meshed with the twelfth gear Z12, a fifteenth gear Z15 meshed with the fifth gear Z5, and a thirteenth gear Z13 meshed with the thirteenth gear Z13. The fourteenth gear Z14, a set of differential gears Z16, Z17, Z18 is arranged between the fourteenth gear Z14 and the fifteenth gear Z15; wherein, the gear Z15 is coaxial with the gear Z14, and the number of teeth and the diameter of the indexing circle are the same; Gear Z5 is coaxial with gear Z12, the number of teeth and the diameter of the indexing circle are the same; the center distance of the two sets of gears is the same, and Z5 and Z15 are directly meshed; the two gears of Z12 and Z14 have a height difference in space, and they cannot be meshed directly. The idler Z13, the upper half of the tooth width of the idler Z13 meshes with Z12, and the lower half meshes with Z14; the purpose of the idler Z13 is to make the differential obtain the speed difference between Z5 and Z12; in Figure 3, according to the mechanical transmission The representation method of the figure, because the gear Z14 and the gear Z15 have the same number of teeth, generally the gear Z5 and the gear Z15 are not drawn as direct meshing in the transmission diagram, otherwise, it is easy to cause a misunderstanding that the number of teeth of the gear Z14 and the gear Z15 are not the same, and generally adopt The method of adding a bracket indicates that this method is often used in the schematic diagram of machine tool transmission. The output ends of the differential gears Z16, Z17 and Z18 are decelerated by a set of reduction gears Z19 and Z20 and then connected to a worm Z21 and a worm gear Z22, and the shaft of the worm gear Z22 is connected to a dial 4 on the outside of the feed box 12 , used to indicate the feed depth of the drilling machine spindle. The above-mentioned group of differential gears Z16, Z17, Z18 detects the speed difference between the shaft 5 of the lead screw and the screw nut 21, and then transmits it to the worm Z21 to drive the worm gear Z22 to rotate. The shaft of the worm gear Z22 is connected to the feed box The dial 4 on the outside of the 12 is connected to indicate the feed depth of the main shaft of the drilling machine.

In the above-mentioned embodiment, as shown in Fig. 1 and Fig. 4, a large gear 42 is arranged on the central axis 41 of the dial 4, and the large gear 42 is meshed with a small gear 43, and the gear shaft 44 of the small gear 43 extends out of the scale Disc 4 is also equipped with a locking disc 45, and locking the locking disc 45 can make the gear shaft 44 of the pinion 43 unable to rotate, so that the dial 4, the bull gear 42 and the center shaft 41 are integrated; Unlock the locking disc 45, the gear shaft 44 can be rotated to drive the pinion 43 to rotate around the bull gear 42 along the central axis 41 of the dial, so as to adjust the rotational position of the dial 4, so as to set the feed depth of the drilling machine. The dial 4 is provided with a cam 46, and the safety clutch 6 is connected with a push fork 61 corresponding to the cam 46. When the main shaft of the drilling machine reaches the set feed depth, the cam 46 on the dial 4 pushes The shift fork 61 opens the safety clutch 6 and stops the feed movement of the main shaft.

The main driving motor 13 in the above embodiment is a hydraulic motor, but it is not limited thereto, and an electric motor suitable for other underwater work can also be selected. The above-mentioned clutch 6 is specifically a jaw type safety clutch in this embodiment, and its working principle is to make two coupling elements with trapezoidal teeth on the end face mesh with each other through the compression effect of a spring to transmit torque; When the torque is too large, the load exceeds the compression force of the spring, and the two combined elements slide relative to each other, which plays the role of safety protection. Its advantages are simple structure, small size, and large transmission torque. Limited, steel ball safety clutch or other friction safety clutch can also be selected.

The present invention can realize following several motions:

1. Spindle rotary motion

The main drive motor 13 with the planetary reducer drives the main shaft sleeve 3 to rotate through the high-speed gears Z1 and Z3 (or through the low-speed gears Z2 and Z4), and drives the main shaft 2 to rotate through the feather key.

The main transmission box is provided with a variable speed switch 14, and the high-speed or low-speed rotation of the main shaft can be realized by moving the handle.

2. Working feed movement of the spindle

The main drive motor 13 directly drives the main shaft sleeve 3 to rotate the main shaft 2 through the gears Z1, Z3 (or gears Z2, Z4). Simultaneously, the gear Z5 at the upper end of the main shaft sleeve 3 drives the gears Z6, Z7, Z8, and through the jaw type safety clutch 7, the shaft 5 of the screw driven by the gears Z9, Z10, Z11 and Z12 rotates. Due to the difference in the number of teeth of the gears Z7 and Z10, differential motion occurs between the screw nut 21 on the main shaft 4 and the shaft 5 of the lead screw, thereby realizing the low-speed working feed movement of the main shaft 2; when the feed force is too large, the interlocking The safety clutch 6 is opened to prevent equipment damage.

3. Fast forward and rewind movement of the spindle

The main drive motor 13 stops rotating, and the working feed on the feed box is moved and the fast feed conversion handle (referring to Fig. 1, Fig. 2), and the jaw type safety clutch 6 is opened. By driving the motor 18 quickly, the gear Z9 on the shaft is driven, and the shaft 5 of the lead screw is driven to rotate through the gears Z10, Z11 and Z12, thereby realizing the fast forward and backward of the main shaft 2.

4. Manual adjustment of the spindle position

When the jaw type safety clutch 6 is opened, the hand wheel 17 can be turned to manually adjust the feeding position of the main shaft 2 .

The indication and setting of the feed depth of the present invention are as follows:

The right side of the feed box can detect the speed difference between the screw shaft 5 and the screw nut 21 through the gears Z13, Z14 and Z15 and the gears Z16, Z17 and Z18 in the differential; through the gears Z19, Z20 and the worm Z21, Drive the worm gear Z22 to rotate; the shaft of the worm gear 222 is connected with the dial on the outside of the feed box, so as to indicate the feed depth of the drilling machine main shaft.

Loosen the locking disc 45, the gear shaft 44 with the pinion can be rotated relative to the large gear 42 on the dial center shaft 41 (see Fig. 4), by adjusting the rotational position of the dial, the progress of the drilling machine can be set. give depth. After setting, tighten the locking disc 45, the gear shaft 44 with the pinion can be fixed, and the dial 4, the bull gear 42 and the center shaft 41 are integrated. When the main shaft of the drilling machine reaches the feeding depth, the circular cam on the left hand wheel on the dial pushes the shift fork, opens the jaw type safety clutch 6, and stops the feeding movement of the main shaft. When the main shaft of the drilling machine moves up and down, the dial 4 also rotates correspondingly, indicating the movement position and the drilling depth of the main shaft of the drilling machine.

Claims (10)

1. the submarine pipeline tapping machine of a controllable feeding depth is characterized in that it includes:

One housing, these housing central authorities are provided with a main shaft and rack sleeve vertically, adopt feather key to connect between this main shaft and the rack sleeve, and this lower housing portion is provided with a main transmission box, and this housing top is provided with a feed box;

This main transmission box is provided with a main CD-ROM drive motor, and the travelling gear of the transmission of power of main CD-ROM drive motor being given rack sleeve;

Be provided with the main shaft drives assembly that the rotation transmission of described rack sleeve is made motion of main shaft in this feed box, and the feeding depth positioning component of locating holes cutter drilling depth;

The bottom of described main shaft is provided with a boring cutter.

2. the submarine pipeline tapping machine of controllable feeding depth according to claim 1 is characterized in that: on the output shaft of the main CD-ROM drive motor on the described main transmission box, slip be provided with first gear and second gear; The outer wall lower end of described rack sleeve is provided with the 3rd gear and the 4th gear, and the 3rd gear is corresponding with first gear, and the 4th gear is corresponding with second gear; By the slip of first gear and second gear, can make first gear and the 3rd meshed transmission gear or second gear and the 4th meshed transmission gear.

3. the submarine pipeline tapping machine of controllable feeding depth according to claim 2, it is characterized in that: the outer wall of described main transmission box is provided with one and drives first gear and the slip of second gear, thereby makes the varying speed switch of first gear and the 3rd meshed transmission gear or second gear and the 4th meshed transmission gear.

4. according to the submarine pipeline tapping machine of claim 1 or 2 or 3 described controllable feeding depths, it is characterized in that: the top of described rack sleeve extends into described feed box; Described main shaft drives assembly includes the 5th gear that is arranged on this rack sleeve top, be arranged on the fixed axis in the feed box, that rotates on this fixed axis is provided with the 6th gear, the 7th gear, the tenth gear and the 11 gear, and wherein affixed, the tenth gear of the 6th gear and the 7th gear and the 11 gear are affixed; The 6th gear is meshed with the 5th gear, and the 7th gear and is arranged on the octadentate wheel engagement on the overload-release clutch, this overload-release clutch is sheathed on the turning cylinder, what the octadentate wheel then rotated is arranged on the turning cylinder, also affixed one the 9th gear that is provided with of the opposite side of this turning cylinder, the 9th gear and the tenth gears engaged; The center at described main shaft top is provided with a screw, cooperate this screw, the top of main shaft is run through and is provided with a leading screw, between the top and feed box that are arranged on rack sleeve that the axle of leading screw rolls, and this axle is gone up affixed 1 the 12 gear, the 12 gear and the 11 gears engaged of being provided with.

5. the submarine pipeline tapping machine of controllable feeding depth according to claim 4, it is characterized in that: feed box is extended at the two ends of described turning cylinder respectively, and at a end near the octadentate wheel, be provided with a handwheel, at the end near the 9th gear, connection is provided with a fast driving motor; The 7th gear on the described fixed axis is different with the number of teeth of the tenth gear, and it is poor that it has certain number of teeth.

6. the submarine pipeline tapping machine of controllable feeding depth according to claim 4, it is characterized in that: described feeding depth positioning component includes the 13 gear of the one and the 12 gear engagement, the 15 gear of the one and the 5th gears engaged, and one and the 14 gear of the 13 gears engaged, be provided with one group of differential gear between the 14 gear and 15 gears; The output of this differential gear connects a worm screw, worm gear again after one group of reduction gearing is slowed down, the axle of this worm gear is connected with a dial in the feed box outside, in order to indicate the feeding depth of tapping machine main shaft.

7. the submarine pipeline tapping machine of controllable feeding depth according to claim 6, it is characterized in that: the central shaft of described dial is provided with a gear wheel, this gear wheel is engaged with a pinion, the gear shaft of this pinion extends described dial and is equipped with a locking plate, locks this locking plate the gear shaft of pinion can not be rotated; This dial is provided with a cam, described overload-release clutch be connected with one with the corresponding promotion shift fork of this cam.

8. the submarine pipeline tapping machine of controllable feeding depth according to claim 7, it is characterized in that: the cam that is provided with on the described dial is arranged on the cylindrical of dial.

9. according to the submarine pipeline tapping machine of claim 1 or 2 or 3 described controllable feeding depths, it is characterized in that: described main CD-ROM drive motor is a hydraulic motor.

10. the submarine pipeline tapping machine of controllable feeding depth according to claim 4, it is characterized in that: described overload-release clutch is castellated overload-release clutch.

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