CN211283409U - Rotary lifting ring for petroleum drilling tool - Google Patents
Rotary lifting ring for petroleum drilling tool Download PDFInfo
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- CN211283409U CN211283409U CN201922200648.4U CN201922200648U CN211283409U CN 211283409 U CN211283409 U CN 211283409U CN 201922200648 U CN201922200648 U CN 201922200648U CN 211283409 U CN211283409 U CN 211283409U
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- ball seat
- lug
- drilling tool
- circular bead
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Abstract
The utility model discloses a rotary lifting ring for oil drilling tool, including the top connection, keep off the ring, the lug, annular ball seat and steel ball, be provided with the first annular circular bead as an organic whole with the top connection in the upper end of top connection, be provided with the second annular circular bead as an organic whole of being connected with the lug at the lower extreme of lug, and the lower extreme of top connection passes from the second annular circular bead, the cover has annular ball seat on the top connection and between the second annular circular bead that is located first annular circular bead and lug, the arc slot has been seted up symmetrically on the terminal surface of annular ball seat and first annular circular bead, install a set of steel ball between two arc slots. The utility model discloses a simple bearing principle is formed with the combination of arc slot on annular ball seat and the first annular circular bead to the steel ball, realizes the rotation function of rings. Simultaneously annular ball seat and second annular circular bead all with the outer wall clearance fit of top connection to it is smooth and easy when guaranteeing the rings rotation, do not have the jamming phenomenon.
Description
Technical Field
The utility model relates to an oil drilling tool is with rotatory rings belongs to drilling tool technical field.
Background
A common wire lifting or lifting ring hoisting drilling tool in the petroleum and natural gas drilling industry is generally of a fixed structure formed by welding a steel bar or a steel bar and a connector into a whole, can only be lifted and cannot rotate, stress of a welding part between the steel bar or the steel bar and the connector is concentrated, the steel bar or the steel bar is easy to deform when being lifted and pulled, and the steel bar or the steel bar falls off. In addition, the integral wire lifting is also available, the strength is reliable, but the wire lifting can not rotate and only can be lifted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, safe and reliable, the high oil drilling tool of intensity is with rotatory rings to overcome not enough among the prior art.
The technical scheme of the utility model: the rotary lifting ring for the petroleum drilling tool comprises an upper joint, a retaining ring, a lifting lug, an annular ball seat and a steel ball, wherein a first annular shoulder which is connected with the upper joint into a whole is arranged at the upper end of the upper joint, and the steel ball, the annular ball seat, the lifting lug and the retaining ring are sequentially arranged on the outer circle of the lower end, close to the first annular shoulder, of the upper joint.
Further, the lower extreme of lug is provided with and is connected the second annular circular bead as an organic whole with the lug, and the lug afterbody is circular arc rectangle cross-section, and the lug is as an organic whole with second annular circular bead, and the lower extreme of top connection passes from second annular circular bead.
Furthermore, an annular ball seat is sleeved between the first annular shoulder and the second annular shoulder of the lifting lug on the upper joint, arc-shaped grooves are symmetrically formed in the end faces of the annular ball seat and the first annular shoulder, and a group of steel balls are arranged between the two arc-shaped grooves.
Furthermore, the upper joint is welded with a baffle ring at the lower end of the first annular shoulder.
Furthermore, a group of through holes are uniformly distributed on the circumference of the baffle ring.
Further, the distance between the end face of the annular ball seat and the end face of the first annular shoulder and the center of the steel ball is 1-2 mm.
Further, annular ball seat and second annular circular bead all with the outer wall clearance fit of top connection.
Furthermore, the upper joint is provided with a taper thread.
Due to the adoption of the technical scheme, the utility model has the advantages of:
(1) the steel ball, the annular ball seat and the arc-shaped groove on the first annular shoulder are combined to form a simple bearing principle, and the rotating function of the hanging ring is achieved.
(2) Because set up a set of steel ball between annular ball seat and the first annular circular bead to form rolling friction structure between messenger's annular ball seat and the first annular circular bead, annular ball seat and second annular circular bead all with the outer wall clearance fit of top connection simultaneously, thereby guarantee that rings are smooth and easy when rotatory, no jamming phenomenon.
(3) The baffle ring is a ring body, through holes are uniformly distributed on the circumference, so that the rotary lifting ring tool is convenient to install and disassemble and is convenient to install and disassemble when in use, and meanwhile, the baffle ring has the effect of limiting lifting lugs.
Therefore, the utility model discloses overall structure is rotatable, also can carry and draw, inserts the rod iron or the instrument is used for making up and breaking out during the use on the through-hole of fender ring, and it is more convenient, more reliable to use than prior art's rings.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of the upper joint;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is a cross-sectional view of the retainer ring.
The labels in the figures are: 1-upper joint, 2-baffle ring, 3-lifting lug, 4-annular ball seat, 5-steel ball, 6-second annular shoulder, 7-first annular shoulder, 8-conical thread, 9-arc groove and 10-through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
The embodiment of the utility model provides a: the rotary lifting ring for the oil drilling tool is shown in figures 1-4 and comprises an upper joint 1, a baffle ring 2, a lifting lug 3, an annular ball seat 4 and a steel ball 5, wherein a first annular shoulder 7 connected with the upper joint 1 into a whole is arranged at the upper end of the upper joint 1, the steel ball 5, the annular ball seat 4, the lifting lug 3 and the baffle ring 2 are sequentially arranged on the excircle of the lower end of the upper joint 1 close to the first annular shoulder 7, a second annular shoulder 6 connected with the lifting lug 3 into a whole is arranged at the lower end of the lifting lug 3, the tail part of the lifting lug 3 is of an arc rectangular cross section, the lifting lug 3 and the second annular shoulder 6 are integrated into a whole, the lower end of the upper joint 1 penetrates through the second annular shoulder 6, the annular ball seat 4 is sleeved between the first annular shoulder 7 and the second annular shoulder 6 on the lifting lug 3, and arc-shaped grooves 9 are symmetrically arranged on the end, a group of steel balls 5 are arranged between the two arc-shaped grooves 9.
Preferably, the upper joint 1 is provided with the baffle ring 2 welded at the lower end of the first annular shoulder 7, so that the upper joint 1 is prevented from falling off from the second annular shoulder 6, and the safety of the upper joint is improved.
Preferably, a set of through holes 10 are uniformly distributed on the circumference of the baffle ring 2, so that the rotary lifting ring tool can be conveniently buckled and unbuckled, the installation and disassembly work is convenient, and the rotary lifting ring tool has the function of limiting lifting lugs.
Preferably, the distance between the end surface of the annular ball seat 4 and the end surface of the first annular shoulder 7 and the center of the steel ball 5 is 1mm, so that the annular ball seat 4 is separated from the first annular shoulder 7 and can rotate effectively.
Preferably, the annular ball seat 4 and the second annular shoulder 6 are both clearance fitted with the outer wall of the upper sub 1.
Preferably, the upper connector 1 is provided with a taper thread 8 for facilitating effective connection with other tools.
The utility model discloses a theory of operation:
the steel ball 5, the annular ball seat 4 and the arc-shaped groove 9 on the first annular shoulder 7 are combined to form a simple bearing principle, so that the free rotation function of the hanging ring is realized.
2 owing to arranged a set of steel ball 5 between annular ball seat 4 and the first annular circular bead 7 to make and form the rolling friction structure between annular ball seat 4 and the first annular circular bead 7, annular ball seat 4 and second annular circular bead 6 all with top connection 1's outer wall clearance fit simultaneously, thereby guarantee that rings are smooth and easy when rotatory, no jamming phenomenon.
3 keep off ring 2 and be the tourus, the equipartition has through-hole 10 on the circumference, and the rotatory rings instrument of being convenient for goes up when using, breaks out, and the installation of being convenient for is dismantled work, has the effect of spacing lug simultaneously.
To sum up, the utility model discloses overall structure is rotatable, also can carry and draw, inserts the rod iron or the instrument is used for making up and breaking out during the use on the through-hole 10 of fender ring 2, and it is more convenient, more reliable to use than prior art's rings.
Claims (8)
1. The utility model provides a petroleum drilling tool is with rotatory rings, includes top connection (1), fender ring (2), lug (3), annular ball seat (4) and steel ball (5), its characterized in that: a first annular shoulder (7) which is connected with the upper joint (1) into a whole is arranged at the upper end of the upper joint (1), and a steel ball (5), an annular ball seat (4), a lifting lug (3) and a baffle ring (2) are sequentially arranged on the excircle of the lower end of the upper joint (1) close to the first annular shoulder (7).
2. The rotary slinger for an oil drilling tool according to claim 1, wherein: the lower extreme of lug (3) is provided with and is connected second annular circular bead (6) as an organic whole with lug (3), and lug (3) afterbody is circular arc rectangle cross-section, and lug (3) and second annular circular bead (6) are as an organic whole, and the lower extreme of top connection (1) passes from second annular circular bead (6).
3. The rotary slinger for an oil drilling tool according to claim 1, wherein: an annular ball seat (4) is sleeved between the first annular shoulder (7) and the second annular shoulder (6) of the lifting lug (3) on the upper joint (1), arc-shaped grooves (9) are symmetrically formed in the end faces of the annular ball seat (4) and the first annular shoulder (7), and a group of steel balls (5) are mounted between the two arc-shaped grooves (9).
4. The rotary slinger for an oil drilling tool according to claim 1, wherein: and a baffle ring (2) is welded at the lower end of the first annular shoulder (7) on the upper joint (1).
5. The rotary slinger for an oil drilling tool according to claim 4, wherein: a group of through holes (10) are uniformly distributed on the circumference of the baffle ring (2).
6. The rotary slinger for an oil drilling tool according to claim 1, wherein: the end face of the annular ball seat (4) and the end face of the first annular shoulder (7) are 1-2 mm away from the center of the steel ball (5).
7. The rotary slinger for an oil drilling tool according to claim 1, wherein: the annular ball seat (4) and the second annular shoulder (6) are in clearance fit with the outer wall of the upper joint (1).
8. The rotary slinger for an oil drilling tool according to claim 1, wherein: the upper joint (1) is provided with a taper thread (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922200648.4U CN211283409U (en) | 2019-12-10 | 2019-12-10 | Rotary lifting ring for petroleum drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922200648.4U CN211283409U (en) | 2019-12-10 | 2019-12-10 | Rotary lifting ring for petroleum drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211283409U true CN211283409U (en) | 2020-08-18 |
Family
ID=72017232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922200648.4U Active CN211283409U (en) | 2019-12-10 | 2019-12-10 | Rotary lifting ring for petroleum drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211283409U (en) |
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2019
- 2019-12-10 CN CN201922200648.4U patent/CN211283409U/en active Active
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