CN214221119U - Hydraulic slip for preventing drilling tool clamping damage - Google Patents
Hydraulic slip for preventing drilling tool clamping damage Download PDFInfo
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- CN214221119U CN214221119U CN202022345256.XU CN202022345256U CN214221119U CN 214221119 U CN214221119 U CN 214221119U CN 202022345256 U CN202022345256 U CN 202022345256U CN 214221119 U CN214221119 U CN 214221119U
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Abstract
The utility model discloses a hydraulic slip for preventing drilling tool clamping damage, which relates to the technical field of hydraulic slips and comprises a slip, wherein the slip comprises two parts which are the same left and right; the inner diameter of the slip is larger than the outer diameter of the drilling tool, and the outer diameter of the slip is smaller than the inner diameter of the slip body; the top of the slip is provided with an annular shoulder extending outwards. The slip is divided into two halves, the outer conical surface is slightly smaller than the inner conical surface of the slip body, the slip is provided with a larger stress end surface, the end surface can be in contact with the slip body, the weight of the drilling tool is transmitted to the slip body through the end surface, and then the effect of suspending the drilling tool is achieved.
Description
Technical Field
The utility model relates to a hydraulic pressure slips technical field especially relates to a prevent hydraulic pressure slips of drilling tool centre gripping damage.
Background
The existing hydraulic slips are mainly used for clamping an orifice drilling tool and have the gravity locking function, and the main advantage is that any position of the drilling tool can be clamped. However, because the weight of the drilling tool in the ultra-deep well drilling is very large, and the hydraulic slip has a gravity self-locking structure, the clamping force of the slip is increased under the action of gravity, and the outer surface layer of the drilling tool is often damaged. If the drilling tool is frequently damaged, the service life of the drilling tool is rapidly reduced, and even drilling accidents occur.
The existing hydraulic elevator is mainly used for lifting various pipe fittings, stress points are concentrated at the end part of the joint, and damage to a drilling tool can be reduced. But it can only lift the end face of the drilling tool and can not clamp any position of the drilling tool like a hydraulic slip.
Disclosure of Invention
For solving above technical problem, the utility model provides a prevent hydraulic pressure slips of drilling tool centre gripping damage synthesizes the function of elevator and slips together, realizes the switching of elevator and slips function, and then realizes holding the change of suspension additional.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a hydraulic slip for preventing the clamping damage of a drilling tool, which comprises a slip, wherein the slip comprises two parts which are the same on the left and the right; the inner diameter of the slip is larger than the outer diameter of the drilling tool, and the outer diameter of the slip is smaller than the inner diameter of the slip body; the top of the slip is provided with an annular shoulder extending outwards.
Optionally, two sides of the slip body are respectively provided with a hydraulic cylinder, the top of a hydraulic rod of the hydraulic cylinder is movably connected with one end of a connecting rod, the other end of the connecting rod is movably connected with the top of the corresponding part of the slip, and the middle of the connecting rod is movably connected with the top of the slip body.
Optionally, the shape of the top of the inner diameter side of the slip is matched with the transition conical surface of the drilling tool.
The utility model discloses for prior art gain following technological effect:
1. the same slip body is used as the existing hydraulic slip, the contact mode of the slip and the slip body is changed by changing the slip, the functions of the elevator and the slip are integrated, the switching of the functions of the elevator and the slip is realized, and the change from holding to holding is further realized;
2. the size of the slips is changed, so that the slips can be suitable for drilling tools of different specifications;
3. the size is moderate, the disassembly and the use are convenient, and the easy-wear parts are convenient to replace.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the structure schematic diagram of the hydraulic slip for preventing the damage of the drill tool.
Description of reference numerals: 1. a slip body; 2. slips; 3. drilling tools; 4. a connecting rod; 5. and a hydraulic cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in FIG. 1, the embodiment provides a hydraulic slip for preventing the clamping damage of a drilling tool, which comprises slips 2, wherein the slips 2 comprises two parts which are the same on the left and the right; the inner diameter of the slip 2 is larger than the outer diameter of the drilling tool 3, and the outer diameter of the slip 2 is smaller than the inner diameter of the slip body 1; the top of the slip 2 is provided with an annular shoulder extending outwards.
In this embodiment, the slip 2 has a vertical hole on one side of its inner diameter, and the upper surface of the slip 2 contacts the shoulder of the drilling tool 3.
In a more specific embodiment, a supporting frame is arranged at the top of the slip body 1, a supporting rod is respectively arranged at the top of the left part and the right part of the slip 2, the middle part of the connecting rod 4 is movably hinged with the supporting frame, one end of the connecting rod 4 is movably hinged with the top of the hydraulic rod, and the other end of the connecting rod 4 is movably hinged with the top of the supporting rod.
When the hydraulic rod extends out, the other end of the connecting rod 4 moves downwards, so that the left part and the right part of the slip 2 enter the slip body 1, the bottom surface of the shoulder is contacted with the top surface of the slip body 1, the left part and the right part of the slip 2 are prevented from clamping the drilling tool 3 with large clamping force due to the gravity of the drilling tool 3 to cause the damage of the drilling tool 3, and the clamping of the slip 2 on the drilling tool 3 is changed into suspension.
Example two:
in this embodiment, one side of the inner diameter of the slip 2 is a vertical hole, and the shape of the top of the inner side of the slip 2 is matched with the transition conical surface of the drilling tool 3, so that the transition conical surface of the drilling tool 3 is in contact with the slip 2.
The hydraulic slip for preventing the drilling tool from clamping damage can be suitable for the drilling tools with different specifications by changing the inner diameter size of the slip.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (3)
1. The hydraulic slip for preventing the clamping damage of the drilling tool is characterized by comprising a slip, wherein the slip comprises two parts which are the same on the left and the right; the inner diameter of the slip is larger than the outer diameter of the drilling tool, and the outer diameter of the slip is smaller than the inner diameter of the slip body; the top of the slip is provided with an annular shoulder extending outwards.
2. The hydraulic slip for preventing the drilling tool from being clamped and damaged according to claim 1, wherein two sides of the slip body are respectively provided with a hydraulic cylinder, the top of a hydraulic rod of each hydraulic cylinder is movably connected with one end of a connecting rod, the other end of each connecting rod is movably connected with the top of the corresponding part of the slip, and the middle of each connecting rod is movably connected with the top of the slip body.
3. The hydraulic slip for preventing damage to the grip of a drilling tool of claim 1, wherein the inside diameter side crests of the slip are shaped to match the transitional cone of the drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022345256.XU CN214221119U (en) | 2020-10-20 | 2020-10-20 | Hydraulic slip for preventing drilling tool clamping damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022345256.XU CN214221119U (en) | 2020-10-20 | 2020-10-20 | Hydraulic slip for preventing drilling tool clamping damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221119U true CN214221119U (en) | 2021-09-17 |
Family
ID=77694897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022345256.XU Active CN214221119U (en) | 2020-10-20 | 2020-10-20 | Hydraulic slip for preventing drilling tool clamping damage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221119U (en) |
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2020
- 2020-10-20 CN CN202022345256.XU patent/CN214221119U/en active Active
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