CN203321370U - Hole bottom power drilling tool high-temperature-resistant stall prevention joint - Google Patents
Hole bottom power drilling tool high-temperature-resistant stall prevention joint Download PDFInfo
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- CN203321370U CN203321370U CN2013202454936U CN201320245493U CN203321370U CN 203321370 U CN203321370 U CN 203321370U CN 2013202454936 U CN2013202454936 U CN 2013202454936U CN 201320245493 U CN201320245493 U CN 201320245493U CN 203321370 U CN203321370 U CN 203321370U
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- drilling tool
- transmission shaft
- hole
- power drilling
- high temperature
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Abstract
The utility model discloses a hole bottom power drilling tool high-temperature-resistant stall prevention joint which comprises an outer cylinder, an upper transmission shaft, a lower transmission shaft, a torsional spring, slips and a pre-fastening sleeve. The lower end of the upper transmission shaft is inserted into the lower transmission shaft. The upper transmission shaft is connected with the lower transmission shaft through a multi-step thread. Space is reserved at the connection position of the upper transmission shaft and the lower transmission shaft. The upper transmission shaft and the lower transmission shaft are sleeved with the outer cylinder. The torsional spring is fixedly arranged on the upper transmission shaft in a sleeved mode. The lower end of the torsional spring is fixedly connected with the top of the lower transmission shaft. The upper portion of the lower transmission shaft is hollow and provided with a plurality of holding claws which are evenly distributed in an annular mode. The holding claws slant towards the axis. One slip is installed in the gap between every two adjacent holding claws. The outer surfaces of the slips and the outer surfaces of the holding claws are conical surfaces. The outer sides of the slips are sleeved with the pre-fastening sleeve. The pre-fastening sleeve is meshed with the slips through threads. According to the hole bottom power drilling tool high-temperature-resistant stall prevention joint, the clamping-sliding effect in the drilling process is reduced, excessively high accumulated torque energy of a drilling tool is prevented, and the risk that rotation of a drill bit is stopped is reduced. The hole bottom power drilling tool high-temperature-resistant stall prevention joint is used in cooperation with the turbine drilling tool, and the braking stall phenomenon of the turbine drilling tool under the large-torque high-drilling-pressure working condition is avoided.
Description
Technical field
The utility model relates to the geological drilling field, particularly a kind of take regulate machine tool under the hole that the drilling well moment of torsion is purpose.
Background technology
In the prior art, the driving of bit has ground to drive power drilling tool under (drive on rotating disk or top) and hole to drive two kinds of major ways usually.When adopting the ground drive form, often add up a large amount of amount of torsional energy in drill string, form torsion spring accumulation potential energy, in complicated stratum, easily induced vibration and impact, damage under drill string junction button, hole measurement and control instrument etc.; Use power drilling tool under hole, particularly turbodrill to drive drill bit to creep into brokenly rock, when creeping into moment of torsion when excessive, easily cause drill bit to stop the rotation, so that can't obtain drilling depth; Particularly, in bad ground, this phenomenon often occurs, and has greatly affected the efficiency of creeping into and has crept into safety.Generally take the mode of controlling drilling parameter to make it steady, the harm of whirling vibration at the bottom of the reduction hole, and strengthen Vibration Absorption Designing to instrument under hole to reduce its injury, but these methods can't fundamentally effectively control and reduce whirling vibration, are difficult to obtain good control effect.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide the real-time adjustment means of moment of torsion under a kind of all-metal hole, card in the minimizing drilling process at the bottom of drill bit and hole-cunning effect, the too high torque energy of prevention drilling tool accumulative total, and this energy is reduced to drill bit stops operating and the risk that causes obtaining drilling depth for cutting rock break-off process.Especially in high temperature well, coordinate turbodrill to use this cover instrument, overcome braking " stall " phenomenon of turbodrill under the large the pressure of the drill operating mode of high pulling torque.
The technical solution of the utility model is achieved in that
The high temperature resistant stall proof joint of power drilling tool at the bottom of a kind of hole, comprise outer cylinder body, upload moving axis, lower drive shaft, torsion spring, slips and pre-tightening sleeve, described lower end of uploading moving axis is inserted in described lower drive shaft and connects by multiple thread, at described moving axis and the described lower drive shaft junction headspace uploaded, described outer cylinder body is enclosed within described uploading outside moving axis and described lower drive shaft, described torsion spring fixed cover is uploaded on moving axis described, described torsion spring lower end is fixedly connected with described lower drive shaft top, described lower drive shaft top hollow and be the equally distributed holding claws of a plurality of shaping shapes, a plurality of described holding claws tilt towards axle center, between the space between adjacent two holding claws, slips is housed, described slips and described holding claw external surface are the conical surface, described slips outside cover has pre-tightening sleeve, described pre-tightening sleeve with between described slips by together with threaded engagement.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, the quantity of the corresponding described holding claw of the number of described torsion spring, a plurality of described torsion spring screw-casings together, have installing hole at described holding claw upper surface, and the joint pin correspondence of each described torsion spring lower end is inserted in a described installing hole.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, also comprise linear bearing and bearing support, described lower drive shaft is through described linear bearing, and described bearing support is fixedly connected with described outer cylinder body lower end, and described linear bearing is encapsulated in described outer cylinder body by described bearing support.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, described slips inwall is provided with the metal pad.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, described holding claw is 3, and corresponding described torsion spring is three, and three described holding claws circularize and are uniformly distributed, together, the joint pin of each described torsion spring lower end inserts in the installing hole of corresponding described holding claw upper surface three described torsion spring screw-casings.
The high temperature resistant stall proof of power drilling tool joint at the bottom of above-mentioned hole, describedly upload moving axis and the equal hollow of lower drive shaft connects.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, the lower end of described lower drive shaft has oil standard die nipple screw thread.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, described upper end of uploading moving axis is provided with interior six side's sockets.
The high temperature resistant stall proof joint of power drilling tool at the bottom of above-mentioned hole, described outer cylinder body upper end is taper thread.
The high temperature resistant stall proof of power drilling tool joint at the bottom of above-mentioned hole, described upload moving axis and described lower drive shaft junction below be provided with shoulder.
The beneficial effects of the utility model are: at the bottom of hole, the high temperature resistant stall proof of power drilling tool is reduced the card at the bottom of drill bit and hole-cunning effect in few drilling process, the too high torque energy of prevention drilling tool accumulative total, and this energy is caused obtaining the risk of drilling depth for reducing drill bit in the cutting rock break-off process stops operating.Especially in high temperature well, coordinate the bottom of turbodrill to use the utility model, overcome braking " stall " phenomenon of turbodrill under the large the pressure of the drill operating mode of high pulling torque.
The accompanying drawing explanation
The structural representation that Fig. 1 is the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
The structural representation of uploading moving axis that Fig. 2 is the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
The structural representation that Fig. 3 is the lower drive shaft of the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
The structural representation that Fig. 4 is the outer cylinder body of the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
The structural representation that Fig. 5 is the slips of the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
Slips, holding claw and pre-tightening sleeve fit structure schematic diagram that Fig. 6 is the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
Three torsion spring screw-casings structural representation together that Fig. 7 is the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole,
The structural representation that Fig. 8 is the pre-tightening sleeve of the high temperature resistant stall proof joint of power drilling tool at the bottom of the utility model hole.
In figure: the 1-outer cylinder body, 2-uploads moving axis, 3-lower drive shaft, 4-holding claw, 5-slips, 6-pre-tightening sleeve, 7-linear bearing, 8-bearing support, 9-shoulder, 10-torsion spring.
The specific embodiment
By reference to the accompanying drawings the utility model is described further:
As shown in Figure 1, the high temperature resistant stall proof joint of power drilling tool at the bottom of a kind of hole, comprise outer cylinder body 1, upload moving axis 2, lower drive shaft 3, torsion spring 10, slips 5 and pre-tightening sleeve 6, described lower end of uploading moving axis 2 is inserted in described lower drive shaft 3 and connects by multiple thread, , at described moving axis 2 and the described lower drive shaft 3 junction headspaces uploaded, described outer cylinder body 1 is enclosed within described uploading outside moving axis 2 and described lower drive shaft 3, described torsion spring 10 fixed covers are uploaded on moving axis 2 described, described torsion spring 10 lower ends are fixedly connected with described lower drive shaft 3 tops, described lower drive shaft 3 top hollows and be 3 and circularize equally distributed holding claw 4, 3 described holding claws 4 tilt towards axle center, between the space between adjacent two holding claws 4, slips 5 is housed, described slips 5 and described holding claw 4 external surfaces are the conical surface, described slips 5 outside covers have pre-tightening sleeve 6, described pre-tightening sleeve 6 with between described slips 5 by together with threaded engagement, the holding claw 4 that slips 5 is obliquely installed in order to swelling, while regulating pre-fastening moment, pre-tightening sleeve 6 compresses slips 5, 5 swelling holding claws 4 of slips are inwardly held holding claw 4 tightly and are uploaded moving axis 2.
As shown in Figure 7, the quantity of the corresponding described holding claw 4 of the number of described torsion spring 10 is also three, 3 described torsion spring 10 screw-casings together, have installing hole at described holding claw 4 upper surfaces, the joint pin correspondence of each described torsion spring 10 lower end is inserted in a described installing hole, 3 torsion spring 10 screw-casings are used together and can increase moment of torsion, and the number of torsion spring 10 numbers and holding claw 4 also can be set according to the size of pre-fastening moment.
As shown in Figure 1, also comprise linear bearing 7 and bearing support 8, described lower drive shaft 3 is through described linear bearing 7, and described bearing support 8 is fixedly connected with described outer cylinder body 1 lower end, and described linear bearing 7 is encapsulated in described outer cylinder body 1 by described bearing support 8.
As shown in Figure 5, described slips 5 inwalls are provided with the metal pad, and the metal pad is wear-resisting, avoid needing the worry of frequent renewal part.
As shown in Figure 1, Figure 2 and Figure 3, describedly upload moving axis 2 and the equal hollow of lower drive shaft 3 connects, the structure that hollow connects is as slurry channel.
As shown in figures 1 and 3, the lower end of described lower drive shaft 3 has the oil standard die nipple drilling tool that is threaded.
As depicted in figs. 1 and 2, described upper end of uploading moving axis 2 is provided with interior six side's sockets, interior six side's sockets in order to hole at the bottom of the lower end of power drilling tool insert.
As shown in Figure 1 and Figure 4, described outer cylinder body 1 upper end is taper thread, together with taper thread is screwed in order to the stator with drill string or downhole motor, and also is processed with the installation seam on outer cylinder body 1, is convenient to unloading.
As shown in figures 1 and 3, described upload moving axis 2 and described lower drive shaft 3 junctions below be provided with shoulder 9, shoulder 9 can prevent from uploading moving axis 2 and come off.
The high temperature resistant stall proof joint of the power drilling tool course of work at the bottom of hole:
While creeping into work, at the bottom of hole, the lower end of power drilling tool is connected with the upper end of the high temperature resistant stall proof joint of power drilling tool at the bottom of hole, and at the bottom of hole, the lower end of the high temperature resistant stall proof joint of power drilling tool is connected with drill bit.As shown in Figure 6 and Figure 8, regulate pre-fastening moment by regulating pre-tightening sleeve 6, when creeping into moment of torsion while being less than pre-fastening moment, upload between moving axis 2, lower drive shaft 3, slips 5, torsion spring 10, pre-tightening sleeve 6 all without relative motion, the structure of outer cylinder body 1 inside is done as a wholely with power drilling tool at the bottom of hole, to rotate fully, and drives bit.
When creeping into moment of torsion, reach while being enough to overcome pre-fastening moment, to cause slips 5 and upload between moving axis 2 occurring sliding, lower drive shaft 3 overcomes the torsion upward sliding of spring, linear bearing 7 has the effect (selecting in this embodiment the diamond alignment bearing of wear-resisting high temperature resistance) of guiding and righting lower drive shaft 3, lower drive shaft 3 upward slidings can cause that the drill bit that below connects promotes at the bottom of hole, after disengaging at the bottom of drill bit and hole, drill bit will be gradually from a slow speed, even on-position returns to full rotating speed state: when the torque at the bottom of acting on hole on the high temperature resistant stall proof joint of power drilling tool reduces, at the bottom of hole, the high temperature resistant stall proof joint of power drilling tool arrives original state by skin-active under the reaction of torsion spring 10, at the bottom of hole, the high temperature resistant stall proof of power drilling tool saves each mechanism and returns initial position, drill bit continues to creep into.
At the bottom of the utility model hole, all building blocks (uploading moving axis 2, lower drive shaft 3, bearing support 8, pre-tightening sleeve 6, outer cylinder body 1 and torsion spring 10 etc.) of the high temperature resistant stall proof joint of power drilling tool are metal parts and high temperature resistant component, can in the hot environment more than 300 ℃, use.
Above-described embodiment is only for the utility model creation example clearly is described, and not the utility model is created the restriction of the specific embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any apparent variations of being extended out within spirit of the present utility model and principle or change are still among the utility model is created the protection domain of claim.
Claims (10)
1. the high temperature resistant stall proof joint of power drilling tool at the bottom of a hole, it is characterized in that, comprise outer cylinder body, upload moving axis, lower drive shaft, torsion spring, slips and pre-tightening sleeve, described lower end of uploading moving axis is inserted in described lower drive shaft and connects by multiple thread, at described moving axis and the described lower drive shaft junction headspace uploaded, described outer cylinder body is enclosed within described uploading outside moving axis and described lower drive shaft, described torsion spring fixed cover is uploaded on moving axis described, described torsion spring lower end is fixedly connected with described lower drive shaft top, described lower drive shaft top hollow and circularize equally distributed holding claws for a plurality of, a plurality of described holding claws tilt towards axle center, between the space between adjacent two holding claws, slips is housed, described slips and described holding claw external surface are the conical surface, described slips outside cover has pre-tightening sleeve, described pre-tightening sleeve with between described slips by together with threaded engagement.
2. at the bottom of hole according to claim 1, the high temperature resistant stall proof of power drilling tool saves, it is characterized in that, the quantity of the corresponding described holding claw of the number of described torsion spring, a plurality of described torsion spring screw-casings together, have installing hole at described holding claw upper surface, the joint pin correspondence of each described torsion spring lower end is inserted in a described installing hole.
3. at the bottom of hole according to claim 1, the high temperature resistant stall proof of power drilling tool saves, it is characterized in that, also comprise linear bearing and bearing support, described lower drive shaft is through described linear bearing, described bearing support is fixedly connected with described outer cylinder body lower end, and described linear bearing is encapsulated in described outer cylinder body by described bearing support.
4. the high temperature resistant stall proof joint of power drilling tool at the bottom of hole according to claim 1, is characterized in that, described slips inwall is provided with the metal pad.
5. at the bottom of hole according to claim 2, the high temperature resistant stall proof of power drilling tool saves, it is characterized in that, described holding claw is three, corresponding described torsion spring is three, three described holding claws circularize and are uniformly distributed, together, the joint pin of each described torsion spring lower end inserts in the installing hole of corresponding described holding claw upper surface three described torsion spring screw-casings.
6. according to the high temperature resistant stall proof of power drilling tool at the bottom of the arbitrary described hole of claim 1-5 joint, it is characterized in that, describedly upload moving axis and the equal hollow of lower drive shaft connects.
7. according to the high temperature resistant stall proof joint of power drilling tool at the bottom of the arbitrary described hole of claim 1-5, it is characterized in that, the lower end of described lower drive shaft has oil standard die nipple screw thread.
8. according to the high temperature resistant stall proof joint of power drilling tool at the bottom of the arbitrary described hole of claim 1-5, it is characterized in that, described upper end of uploading moving axis is provided with interior six side's sockets.
9. according to the high temperature resistant stall proof joint of power drilling tool at the bottom of the arbitrary described hole of claim 1-5, it is characterized in that, described outer cylinder body upper end is taper thread.
10. the high temperature resistant stall proof of power drilling tool joint at the bottom of hole according to claim 6, is characterized in that, described upload moving axis and described lower drive shaft junction below be provided with shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202454936U CN203321370U (en) | 2013-05-08 | 2013-05-08 | Hole bottom power drilling tool high-temperature-resistant stall prevention joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202454936U CN203321370U (en) | 2013-05-08 | 2013-05-08 | Hole bottom power drilling tool high-temperature-resistant stall prevention joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321370U true CN203321370U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202454936U Withdrawn - After Issue CN203321370U (en) | 2013-05-08 | 2013-05-08 | Hole bottom power drilling tool high-temperature-resistant stall prevention joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256013A (en) * | 2013-05-08 | 2013-08-21 | 中国地质大学（北京） | High-temperature-resisting and anti-stall joint of down-hole motor drilling tool |
-
2013
- 2013-05-08 CN CN2013202454936U patent/CN203321370U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256013A (en) * | 2013-05-08 | 2013-08-21 | 中国地质大学（北京） | High-temperature-resisting and anti-stall joint of down-hole motor drilling tool |
| CN103256013B (en) * | 2013-05-08 | 2015-02-25 | 中国地质大学（北京） | High-temperature-resisting and anti-stall joint of down-hole motor drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20150225 |
|
| RGAV | Abandon patent right to avoid regrant |