CN210264523U - Power device of double-output-shaft trenchless directional drilling machine and drill rod matched with power device - Google Patents
Power device of double-output-shaft trenchless directional drilling machine and drill rod matched with power device Download PDFInfo
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- CN210264523U CN210264523U CN201921297248.3U CN201921297248U CN210264523U CN 210264523 U CN210264523 U CN 210264523U CN 201921297248 U CN201921297248 U CN 201921297248U CN 210264523 U CN210264523 U CN 210264523U
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Abstract
The utility model discloses a double output shaft non-excavation directional drilling machine power device and a drill rod matched with the same, which relate to the field of drilling machines, and the key points of the technical proposal are that the drilling machine power device comprises a shell, a first driving device arranged inside the shell, a second driving device arranged inside the shell, a first output shaft driven by the first driving device to rotate and a second output shaft driven by the second driving device to rotate; the second output shaft is arranged in the first output shaft, and the axes of the second output shaft and the first output shaft are superposed and can rotate relatively; the connecting rod penetrates through the outer rod and can rotate in the outer rod; one end of the outer rod, which is far away from the power device, is provided with an inclined part, and an included angle is formed between the inclined part and the outer rod; one end of the connecting rod close to the inclined part extends out of the inclined part and is fixed with the roller bit. The utility model discloses have the effect that the convenience was driped comparatively hard soil layer or the more soil layer of stone.
Description
Technical Field
The utility model relates to a rig field especially relates to a directional rig power device of non-excavation of dual output shaft and supporting drilling rod that uses.
Background
The non-excavation horizontal directional drilling machine utilizes the directional drilling rod to carry out underground construction under the condition of excavating the minimum part of the ground, the construction equipment can not obstruct traffic, can not destroy greenbelts and vegetation, can not influence the normal life and work order of shops, hospitals, schools and residents, and solves the problem of interference of traditional excavation construction on the life of residents.
In the prior art, the foremost drill rod of a common trenchless horizontal drilling machine adopts an asymmetric drill bit, and the working principle is as follows: when the drill bit rotates at a constant speed, the direction of the soil layer pressure borne by the drill bit is uniformly changed along the circumference, so that the track is drilled in a straight direction basically; when the drill rod is only fed but not rotated, the pressure of the drill bit inclined plane is larger, the track is generally along the direction of the drill bit inclined plane, and the advancing track is changed. However, when the drill rod encounters a hard soil layer or a lot of stones in the soil layer, the conventional drilling machine and the drill rod have difficulty in drilling the soil layer.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a directional rig power device of non-excavation of dual output axle conveniently drives the rotation to the more soil layer drilling rod of hard soil layer or stone.
In order to achieve the above purpose, the utility model provides a following technical scheme: a power device of a double-output-shaft trenchless directional drilling machine comprises a shell, a first driving device arranged inside the shell, a second driving device arranged inside the shell, a first output shaft driven by the first driving device to rotate and a second output shaft driven by the second driving device to rotate; the second output shaft is arranged in the first output shaft, and the axes of the second output shaft and the first output shaft are overlapped and can rotate relatively.
By adopting the technical scheme, the first output shaft is driven by the first driving device to rotate and is in threaded connection with the outer rod of the drill rod, and the second output shaft is driven by the second driving device to rotate and is in threaded connection with the connecting rod; the first output shaft and the second output shaft independently rotate, so that the drill rod is driven to rotate conveniently.
The utility model discloses further set up to: the second output shaft comprises a fixed part driven by the second driving device to rotate, a sliding part connected with the fixed part in a sliding way and an elastic part driving the sliding part to move towards the direction far away from the fixed part; the outer wall of the fixing part close to one end of the sliding part is provided with an external spline, and the inner wall of the sliding part close to one end of the fixing part is provided with an internal spline engaged with the external spline.
Through adopting above-mentioned technical scheme, when the in-process that gos forward runs into comparatively hard soil layer or the more soil layer of stone, the speed of going forward can become slowly suddenly, and the bolster provides the cushion stroke, drives the sliding part and slides to the direction that is close to the fixed part, reduces the stress that the second output shaft received, protects the second output shaft.
The utility model discloses further set up to: the outside that the sliding part is close to fixed part one end is fixed with the stopper, and the gliding spout of confession stopper is seted up to the inner wall of first output shaft.
Through adopting above-mentioned technical scheme, the stopper slides in the spout and can prevent that the sliding part from excessively keeping away from the fixed part, increases the stability of second output shaft work.
The utility model discloses further set up to: the first driving device and the second driving device are driven by gears, and the gears are helical gears.
By adopting the technical scheme, the helical gear has the advantages of stable transmission and small impact, vibration and noise, and is suitable for high-speed heavy-load occasions.
The utility model discloses further set up to: the two sides of the gears of the first driving device and the second driving device are abutted with radial bearings, and the other sides of the radial bearings are abutted with the shell
Through adopting above-mentioned technical scheme, radial bearing carries on spacingly to the gear, prevents that the gear from taking place to slide at the rotation in-process, increases gear revolve's stability.
Another object of the utility model is to provide a drilling rod, the convenience is driling comparatively hard soil layer or the more soil layer of stone.
In order to achieve the above purpose, the utility model provides a following technical scheme: a drill rod comprises an outer rod and a connecting rod, wherein the connecting rod penetrates through the outer rod and can rotate in the outer rod; one end of the outer rod, which is far away from the power device, is provided with an inclined part, and an included angle is formed between the inclined part and the outer rod; one end of the connecting rod close to the inclined part extends out of the inclined part and is fixed with the roller bit.
By adopting the technical scheme, the outer rod and the connecting rod rotate simultaneously, the outer rod rotates at a constant speed, and the soil layer pressure on the roller bit changes uniformly along the circumference, so that the track is drilled in a straight direction basically. When the outer rod stops rotating, the roller bit is subjected to higher pressure of the soil layer along the inclined part, and the roller bit advances along the direction of the inclined part; when the straight line gos forward, roller bit can carry out the breakage to the hard soil layer in the place ahead or the more soil layer of stone to make things convenient for it to go forward.
The utility model discloses further set up to: a probe cavity is formed in the outer wall of the outer rod, and a probe is placed in the probe cavity.
Through adopting above-mentioned technical scheme, the probe can launch radio wave, cooperatees with the check out test set on ground, knows the position of drill bit in real time.
The utility model discloses further set up to: be provided with the apron on the probe chamber, be bolted connection between apron and the outer pole to can seal the probe chamber.
Through adopting above-mentioned technical scheme, the apron protects probe cavity and probe, reduces the damage that receives in drilling process.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the outer rod and the connecting rod rotate simultaneously, the outer rod rotates at a constant speed, and the soil layer pressure on the roller bit changes uniformly along the circumference, so that the track is drilled in a substantially straight direction. When the outer rod stops rotating, the roller bit is subjected to higher pressure of the soil layer along the inclined part, and the roller bit advances along the direction of the inclined part; when the roller bit moves forwards in a straight line, the roller bit can crush hard soil layers or soil layers with more stones in front, so that the roller bit can move forwards conveniently;
2. the first output shaft is driven by the first driving device to rotate and is in threaded connection with an outer rod of the drill rod, and the second output shaft is driven by the second driving device to rotate and is in threaded connection with the connecting rod; the first output shaft and the second output shaft rotate independently, so that the drill rod is driven to rotate conveniently;
3. when the in-process that gos forward runs into comparatively hard soil layer or the more soil layer of stone, the speed of going forward can become slowly suddenly, and the bolster provides the cushion stroke, drives the direction slip of sliding part to being close to the fixed part, reduces the stress that the second output shaft received, protects the second output shaft.
Drawings
FIG. 1 is a schematic view of the overall structure of a power plant according to an embodiment;
FIG. 2 is a cross-sectional view of an embodiment power plant;
FIG. 3 is a schematic structural diagram of a first driving device;
FIG. 4 is a schematic structural diagram of a second driving device;
FIG. 5 is an enlarged view of portion A of FIG. 2;
FIG. 6 is an exploded view of the second output shaft;
FIG. 7 is a schematic structural view of the drill rod of the embodiment.
In the figure: 1. a housing; 2. a first driving device; 21. a first gear; 211. a spline; 22. a second gear; 23. a third gear; 24. a first rotating shaft; 3. a second driving device; 31. a fourth gear; 32. a fifth gear; 33. a second rotating shaft; 4. a first output shaft; 41. a chute; 5. a second output shaft; 51. a fixed part; 511. an external spline; 52. a sliding part; 521. an internal spline; 522. a limiting block; 53. a spring; 54. a placement chamber; 6. a radial bearing; 7. an outer rod; 71. a probe cavity; 72. a probe rod; 73. a cover plate; 74. an inclined portion; 8. a connecting rod; 81. a roller cone drill bit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a power device of a double-output-shaft trenchless directional drilling machine is disclosed, and referring to fig. 1, the power device comprises a shell 1, a first driving device 2 arranged inside the shell 1, a second driving device 3 arranged inside the shell 1, a first output shaft 4 driven by the first driving device 2 to rotate and a second output shaft 5 driven by the second driving device 3 to rotate. The second output shaft 5 is provided inside the first output shaft 4, and the axes of the two shafts are overlapped and can rotate relatively.
Referring to fig. 2 and 3, the first driving device 2 includes a first gear 21 rotatably coupled inside the housing 1, a second gear 22 rotatably coupled inside the housing 1 and engaged with the first gear 21, a third gear 23 rotatably coupled inside the housing 1 and engaged with the second gear 22, and a first rotating shaft 24 passing through the third gear 23 and having an axis coincident with the third gear 23.
A spline 211 is fixed on one side of the first gear 21, and the spline 211 is connected with a driving device (a general motor and a reducer) so as to drive the first gear 21 to rotate. First pivot 24 and first output shaft 4 fixed connection, the complex spline fit between third gear 23 and the first pivot 24 to make the transmission of third gear 23 can transmit first pivot 24, drive first output shaft 4 rotation from realizing first drive arrangement 2.
The first gear 21, the second gear 22 and the third gear 23 are all helical gears, have the advantages of smooth transmission and small impact, vibration and noise, and are suitable for high-speed heavy-load occasions. The two sides of the first gear 21, the second gear 22 and the third gear 23 are respectively abutted to the radial bearing 6, and the other side of the radial bearing 6 is abutted to the shell 1, so that the placing stability of the gears is improved.
Referring to fig. 2 and 4, the second driving device 3 includes a fourth gear 31 rotatably coupled inside the housing 1, a fifth gear 32 rotatably coupled inside the housing 1 and engaged with the fourth gear 31, and a second rotating shaft 33 passing through the fifth gear 32 and coinciding with the axis of the fifth gear 32.
The fourth gear 31 is connected to a driving device (typically a motor and a reducer) so as to rotate the fourth gear 31. The second rotating shaft 33 is fixedly connected with the second output shaft 5, and the fifth gear 32 is in spline fit with the second rotating shaft 33, so that the rotation of the fifth gear 32 is transmitted to the second output shaft 5, and the second driving device 3 drives the second output shaft 5 to rotate.
The fourth gear 31 and the fifth gear 32 are both helical gears, have the advantages of smooth transmission and small impact, vibration and noise, and are suitable for high-speed heavy-load occasions. The radial bearing 6 is connected to both sides of the fourth gear 31 and the fifth gear 32 in an abutting mode, the other side of the radial bearing 6 is connected with the shell 1 in an abutting mode, and the placing stability of the gears is improved.
Referring to fig. 5 and 6, the second output shaft 5 includes a fixed portion 51 fixedly connected to the second rotating shaft 33, a sliding portion 52 slidably connected to the fixed portion, and a spring 53 disposed between the fixed portion 51 and the sliding portion 52. One end of the fixed part 51 close to the sliding part 52 and one end of the sliding part 52 close to the fixed part 51 are opened with placing cavities 54 for placing the springs 53 and abutting against the springs 53.
The outer wall of the fixed part 51 near one end of the sliding part 52 is provided with an external spline 511, and the inner wall of the sliding part 52 near one end of the fixed part 51 is provided with an internal spline 521 engaged with the external spline 511. The mating of the internal spline 521 and the external spline 511 enables the sliding portion 52 and the fixed portion 51 to rotate together. The limiting block 522 is fixed on the outer side of the sliding portion 52 close to one end of the fixing portion 51, the sliding groove 41 for the limiting block 522 to slide is formed in the inner wall of the first output shaft 4, and when the limiting block 522 slides to the end of the sliding groove 41, the sliding portion 52 cannot continue to interact in the direction away from the fixing portion 51, so that the fixing portion 51 and the sliding portion 52 are prevented from being separated.
Referring to fig. 7, a drill rod includes an outer rod 7 and a connecting rod 8, the connecting rod 8 passing through the outer rod 7 and being rotatable within the outer rod 7.
The outer wall of the outer rod 7 is provided with a probe cavity 71, a probe 72 is placed in the probe cavity 71, and a cover plate 73 is arranged on the probe cavity 71. The cover plate 73 is connected with the outer rod 7 through bolts, and can seal the probe cavity 71. The probe 72 can emit radio waves, and can be matched with detection equipment on the ground to know the position of the drill bit 81 in real time. The end of the outer rod 7 remote from the power unit is provided with an inclined portion 74, and an included angle is formed between the inclined portion 74 and the outer rod 7. One end of the connecting rod 8 near the inclined portion 74 protrudes out of the inclined portion 74 and is fixed with a roller bit 81.
When in connection, the outer rod 7 is in threaded connection with the first output shaft 4, and the first output shaft 4 transmits rotation to the outer rod 7; the connecting rod 8 is in threaded connection with the second output shaft 5, and the second output shaft 5 transmits the rotation to the connecting rod 8 and drives the roller bit 81 to rotate.
When the roller bit is used, the outer rod 7 and the connecting rod 8 rotate simultaneously, the outer rod 7 rotates at a constant speed, and the soil layer pressure on the roller bit 81 changes uniformly along the circumference, so that the track is drilled in a substantially straight direction. When the outer rod 7 stops rotating, the roller bit 81 is subjected to a large pressure of the soil along the inclined portion 74, and the roller bit 81 advances in the direction of the inclined portion 74.
When the roller bit 81 runs into harder soil layers or more soil layers of stones in the advancing process, the advancing speed is suddenly slowed down, the spring 53 provides a buffer stroke, the stress on the connecting rod of the roller bit 81 is reduced, and then the sliding part 52 is reset under the action of the spring 53 to reserve the buffer stroke for the next buffer. In the process, the spring 53 absorbs the impact force and releases slowly, reducing damage to the device.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a directional rig power device of non-excavation of dual output shaft which characterized in that: the device comprises a shell (1), a first driving device (2) arranged in the shell (1), a second driving device (3) arranged in the shell (1), a first output shaft (4) driven by the first driving device (2) to rotate and a second output shaft (5) driven by the second driving device (3) to rotate; the second output shaft (5) is arranged inside the first output shaft (4), and the axes of the second output shaft and the first output shaft are overlapped and can rotate relatively.
2. The dual output shaft trenchless directional drilling rig power plant of claim 1, further comprising: the second output shaft (5) comprises a fixed part (51) driven by the second driving device (3) to rotate, a sliding part (52) connected with the fixed part (51) in a sliding manner, and an elastic piece driving the sliding part (52) to move towards the direction far away from the fixed part (51); the outer wall of one end of the fixing part (51) close to the sliding part (52) is provided with an external spline (511), and the inner wall of one end of the sliding part (52) close to the fixing part (51) is provided with an internal spline (521) meshed with the external spline (511).
3. The dual output shaft trenchless directional drilling rig power plant of claim 2, wherein: a limiting block (522) is fixed on the outer side of one end, close to the fixing portion (51), of the sliding portion (52), and a sliding groove (41) for the limiting block (522) to slide is formed in the inner wall of the first output shaft (4).
4. The dual output shaft trenchless directional drilling rig power plant of claim 1, further comprising: the first driving device (2) and the second driving device (3) are driven by gears, and the gears are helical gears.
5. The dual output shaft trenchless directional drilling rig power plant of claim 4, wherein: two sides of the gears of the first driving device (2) and the second driving device (3) are abutted with radial bearings (6), and the other sides of the radial bearings (6) are abutted with the shell (1).
6. A drill pipe for use in the dual output shaft trenchless directional drilling rig power plant of any of claims 1-5, wherein: the device comprises an outer rod (7) and a connecting rod (8), wherein the connecting rod (8) penetrates through the outer rod (7) and can rotate in the outer rod (7); one end of the outer rod (7) far away from the power device is provided with an inclined part (74), and an included angle is formed between the inclined part (74) and the outer rod (7); one end of the connecting rod (8) close to the inclined part (74) extends out of the inclined part (74) and is fixed with a roller bit (81).
7. The drill rod of claim 6, wherein: a probe cavity (71) is formed in the outer wall of the outer rod (7), and a probe (72) is placed in the probe cavity (71).
8. The drill rod of claim 7, wherein: a cover plate (73) is arranged on the probe cavity (71), the cover plate (73) is connected with the outer rod (7) through bolts, and the probe cavity (71) can be sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297248.3U CN210264523U (en) | 2019-08-10 | 2019-08-10 | Power device of double-output-shaft trenchless directional drilling machine and drill rod matched with power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297248.3U CN210264523U (en) | 2019-08-10 | 2019-08-10 | Power device of double-output-shaft trenchless directional drilling machine and drill rod matched with power device |
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| Publication Number | Publication Date |
|---|---|
| CN210264523U true CN210264523U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921297248.3U Active CN210264523U (en) | 2019-08-10 | 2019-08-10 | Power device of double-output-shaft trenchless directional drilling machine and drill rod matched with power device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410009A (en) * | 2019-08-10 | 2019-11-05 | 德威土行孙工程机械（北京）有限公司 | A kind of double output shaft no-dig directional driller power device and matching used drilling rod |
-
2019
- 2019-08-10 CN CN201921297248.3U patent/CN210264523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410009A (en) * | 2019-08-10 | 2019-11-05 | 德威土行孙工程机械（北京）有限公司 | A kind of double output shaft no-dig directional driller power device and matching used drilling rod |
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