CN201924844U - Drill rod elevator of rotary drilling rig - Google Patents
Drill rod elevator of rotary drilling rig Download PDFInfo
- Publication number
- CN201924844U CN201924844U CN2010206542472U CN201020654247U CN201924844U CN 201924844 U CN201924844 U CN 201924844U CN 2010206542472 U CN2010206542472 U CN 2010206542472U CN 201020654247 U CN201020654247 U CN 201020654247U CN 201924844 U CN201924844 U CN 201924844U
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- CN
- China
- Prior art keywords
- drilling rig
- bearing
- rod elevator
- rotary drilling
- deep groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a drill rod elevator of a rotary drilling rig. The drill rod elevator comprises an intermediate body, an upper joint and a lower joint, wherein the upper joint is in threaded connection with the intermediate body; a cavity is arranged in the intermediate body; the lower joint comprises a base and a center shaft, which are integrally connected; and the center shaft is positioned in the cavity of the intermediate body and sleeved with a thrust bearing and deep groove ball bearings. On the basis that the two deep groove ball bearings, namely the upper and the lower deep groove ball bearings, are used for radial positioning and the thrust bearing is used for independently bearing the axial force, as the working condition of the elevator is bearing smaller rotary force and bigger axial force as well as axial impact, the thrust bearing can bear higher axial live load and dead load, so as to meet the requirements of bearing capacity. Therefore, compared with the prior art that the four bearings are used for bearing force, only the three bearings are adopted for meeting the requirements of the bearing capacity, and the drill rod elevator of the rotary drilling rig has lower manufacturing cost and simpler structure, and can effectively shorten the assembly labor hour and simplify the assembly.
Description
Technical field
The utility model relates to a kind of drilling rod elevator, relates to a kind of rotary drilling rig that is widely used in rotary drilling rig industry drilling rod elevator specifically.
Background technology
Rotary drilling rig is one of widely used equipment in rotary drilling rig field with the drilling rod elevator, belongs to the particular component that has in the rotary drilling rig use than the high safety reliability requirement.
Wire rope when not being subjected to loaded-up condition thigh and strand between tighten, when master winch has just begun to promote drilling rod, wire rope begins stressed tension, wire rope can produce one revolving force (make wire rope itself loose) under the load of axis direction, the elevator inner bearing can rotate under the effect of wire rope revolving force.
What generally use on the market now is the compound mode that adopts four single-row angular contact ball bearings, and wherein three angular contact ball bearings are installed up and born axial load, and another angular contact ball bearing has been installed the centering effect downwards.This structure need be used 4 bearings, the cost of manufacture height, and assembly difficulty is big.And because this structure, causes this kind elevator application life because the ability deviation of angular contact bearing bearing radial force is not very long.The replacing of elevator had both increased user's purchase cost, can user's programming be impacted again.
The utility model content
Problem to be solved in the utility model is in order to overcome the above-mentioned defective of traditional elevator, to provide a kind of and can reduce assembly difficulty, and cost of manufacture is low, long service life and can improve the rotary drilling rig drilling rod elevator of efficiency of assembling.
In order to address the above problem, the utility model by the following technical solutions;
A kind of rotary drilling rig drilling rod elevator comprises:
Intermediate has cavity in the described intermediate;
Top connection, described top connection is threaded with intermediate;
Lower contact, lower contact comprise base and the central axis that one connects, and described central axis is positioned at the cavity of intermediate, is set with thrust bearing and deep groove ball bearing on the described central axis.
Below be the utility model for further improvement of these options:
Be provided with the annular boss to central protuberance in the cavity of described intermediate, described deep groove ball bearing is arranged on the side of annular boss near base, and described thrust bearing and deep groove ball bearing are arranged on the side of annular boss near top connection.
Further improve:
Described deep groove ball bearing is equipped with lip-type packing near a side of base.
Further improve:
Be provided with nut between described thrust bearing and the deep groove ball bearing, this nut is connected with central axle threads.
This nut carries out axial restraint to thrust bearing, has reduced this rotary drilling rig effectively with the possibility that the drilling rod elevator is hit and damages, and has increased its application life.
Further improve:
Fixing locking between described nut and the central axis by hexagon socket head cap screw.
Further improve:
Described hexagon socket head cap screw is two, radially is provided with.
Further improve:
The length of described hexagon socket head cap screw is lower than the spacing of nut and intermediate, to guarantee the smooth dismounting of hexagon socket head cap screw.
Further improve:
The cross sectional shape of described nut is step-like, is provided with the axial hole of two symmetries on the step of nut.Be used for the dismounting nut, can simplify the step of dismounting round nut to a great extent.
The utility model adopts such scheme because rotary drilling rig mainly bears axial tension with the drilling rod elevator, so the utility model by about two deep groove ball bearings carry out bearing axial force separately by thrust bearing on the basis of radial location.Because the duty of elevator is to bear lower revolving force and bigger axial force and axial impact, use thrust bearing can bear higher axial dynamic loading and static load relatively, can satisfy requirement for bearing capacity.
The utility model adopts two deep groove ball bearing centering, can guarantee effectively that elevator can be immediately discharges the revolving force of wire rope effectively, this elevator overall structure simple and stable, be about 2000 hours the average length of working life of the elevator on the market, this elevator can reach about 4000 hours through the bright average operation time of actual verification, had prolonged the application life of elevator greatly.
The utility model is compared with traditional employing four shaft strengths, only adopt three bearings can satisfy requirement for bearing capacity, so cost of manufacture is lower, and this structure is simple relatively, in the time of can effectively shortening the mounter and assembly difficulty.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-lower contact; The 2-base; The 3-lip-type packing; 4,8-deep groove ball bearing; The 5-intermediate; The 6-thrust bearing; The 7-round nut; The 9-top connection; 10-O shape sealing ring; The 11-central axis; The 12-cavity; The 13-boss; The 14-hexagon socket head cap screw; The 15-axial hole.
The specific embodiment
Embodiment, as shown in the figure, a kind of rotary drilling rig drilling rod elevator comprises lower contact 1, intermediate 5 and top connection 9, has cavity 12 in the described intermediate 5, described top connection 9 is threaded with intermediate 5.
Described lower contact 1 comprises base 2 and the central axis 11 that one connects, and described central axis 11 is positioned at the cavity 12 of intermediate 5.
Be provided with annular boss 13 in the cavity 12 of described intermediate 5 to central protuberance, described annular boss 13 is equipped with deep groove ball bearing 4 near a side of base 2, deep groove ball bearing 4 is sleeved on the central axis 11, near a side of bases 2 lip-type packing 3 is installed at deep groove ball bearing 4.
Described annular boss 13 is equipped with thrust bearing 6 and deep groove ball bearing 8 near a side of top connection 9, and described thrust bearing 6 and deep groove ball bearing 8 are set on the central axis 11.
Be provided with nut 7 between described thrust bearing 6 and the deep groove ball bearing 8, this nut 7 is threaded with central axis 11.7 pairs of thrust bearings of this nut 6 carry out axial restraint, have reduced this rotary drilling rig effectively with the possibility that the drilling rod elevator is hit and damages, and have increased its application life;
Described nut 7 is fixing locking by two hexagon socket head cap screws 14 radially, and bolt length is lower than the spacing of nut 7 and intermediate 5, to guarantee the smooth dismounting of hexagon socket head cap screw 14.
The cross sectional shape of described nut 7 is step-like, is provided with the axial hole 15 of two symmetries on the step of nut 7, and is used for the dismounting nut, can simplify the step of dismounting round nut to a great extent.
Because rotary drilling rig mainly bears axial tension with the drilling rod elevator, thus this rotary drilling rig with the drilling rod elevator by about two deep groove ball bearings carry out bearing axial force separately by thrust bearing on the basis of radial location.
Because rotary drilling rig is to bear lower revolving force and bigger axial force and axial impact with the duty of drilling rod elevator, use thrust bearing can bear higher axial dynamic loading and static load relatively, can satisfy requirement for bearing capacity.
The utility model adopts two deep groove ball bearing centering, can guarantee effectively that elevator can be immediately discharges the revolving force of wire rope effectively, this elevator overall structure simple and stable, be about 2000 hours the average length of working life of the elevator on the market, this elevator can reach about 4000 hours through the bright average operation time of actual verification, had prolonged the application life of elevator greatly.
The utility model is compared with traditional employing four shaft strengths, only adopt three bearings can satisfy requirement for bearing capacity, so cost of manufacture is lower, and this structure is simple relatively, in the time of can effectively shortening the mounter and assembly difficulty.
Claims (8)
1. rotary drilling rig drilling rod elevator comprises:
Intermediate (5) has cavity (12) in the described intermediate (5);
Top connection (9), described top connection (9) is threaded with intermediate (5);
Lower contact (1), lower contact (1) comprise base (2) and the central axis (11) that one connects, and described central axis (11) is positioned at the cavity (12) of intermediate (5);
It is characterized in that:
Be set with thrust bearing (6) and deep groove ball bearing (4,8) on the described central axis (11).
2. a kind of rotary drilling rig drilling rod elevator according to claim 1, it is characterized in that: be provided with annular boss (13) in the cavity (12) of described intermediate (5) to central protuberance, described deep groove ball bearing (4) is arranged on the side of annular boss (13) near base (2), and described thrust bearing (6) and deep groove ball bearing (8) are arranged on the side of annular boss (13) near top connection (9).
3. a kind of rotary drilling rig drilling rod elevator according to claim 2 is characterized in that: described deep groove ball bearing (4) is equipped with lip-type packing (3) near a side of base (2).
4. a kind of rotary drilling rig drilling rod elevator according to claim 2 is characterized in that: be provided with nut (7) between described thrust bearing (6) and the deep groove ball bearing (8), this nut (7) is threaded with central axis (11).
5. a kind of rotary drilling rig drilling rod elevator according to claim 4 is characterized in that: fixing by hexagon socket head cap screw (14) between described nut (7) and the central axis (11).
6. a kind of rotary drilling rig drilling rod elevator according to claim 5 is characterized in that: described hexagon socket head cap screw (14) is two, radially is provided with.
7. a kind of rotary drilling rig drilling rod elevator according to claim 6 is characterized in that: the length of described hexagon socket head cap screw (14) is lower than the spacing of nut (7) and intermediate (5).
8. according to one of them described a kind of rotary drilling rig drilling rod elevator of claim 4～7, it is characterized in that: the cross sectional shape of described nut (7) is step-like, is provided with the axial hole (15) of two symmetries on the step of nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206542472U CN201924844U (en) | 2010-12-13 | 2010-12-13 | Drill rod elevator of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206542472U CN201924844U (en) | 2010-12-13 | 2010-12-13 | Drill rod elevator of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924844U true CN201924844U (en) | 2011-08-10 |
Family
ID=44428702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206542472U Expired - Fee Related CN201924844U (en) | 2010-12-13 | 2010-12-13 | Drill rod elevator of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201924844U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913149A (en) * | 2012-10-25 | 2013-02-06 | 北京南车时代机车车辆机械有限公司 | Rotary drilling rig and two-channel hydraulic power transmission elevator thereof |
| CN103075118A (en) * | 2012-12-28 | 2013-05-01 | 三一重工股份有限公司 | Elevator pin shaft assembly, elevator and rotary drilling rig |
| CN109882089A (en) * | 2019-04-10 | 2019-06-14 | 聂伟荣 | One kind exempting from oiling rotary connecting joint |
| CN109882089B (en) * | 2019-04-10 | 2024-04-12 | 湖南盛势通科技有限公司 | Oiling-free rotary connector |
-
2010
- 2010-12-13 CN CN2010206542472U patent/CN201924844U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913149A (en) * | 2012-10-25 | 2013-02-06 | 北京南车时代机车车辆机械有限公司 | Rotary drilling rig and two-channel hydraulic power transmission elevator thereof |
| CN103075118A (en) * | 2012-12-28 | 2013-05-01 | 三一重工股份有限公司 | Elevator pin shaft assembly, elevator and rotary drilling rig |
| CN103075118B (en) * | 2012-12-28 | 2016-02-10 | 三一重工股份有限公司 | Elevator pin shaft, elevator and rotary drilling rig |
| CN109882089A (en) * | 2019-04-10 | 2019-06-14 | 聂伟荣 | One kind exempting from oiling rotary connecting joint |
| CN109882089B (en) * | 2019-04-10 | 2024-04-12 | 湖南盛势通科技有限公司 | Oiling-free rotary connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |