CN210483574U - Drilling tool elevator - Google Patents
Drilling tool elevator Download PDFInfo
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- CN210483574U CN210483574U CN201920782042.3U CN201920782042U CN210483574U CN 210483574 U CN210483574 U CN 210483574U CN 201920782042 U CN201920782042 U CN 201920782042U CN 210483574 U CN210483574 U CN 210483574U
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- 238000005553 drilling Methods 0.000 title claims abstract description 63
- 239000003921 oil Substances 0.000 claims description 67
- 239000010720 hydraulic oil Substances 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model provides a drilling tool elevator, which comprises an elevator main body, two locking devices with the same structure and at least one driving device, wherein the elevator main body is provided with a drilling rod hole for a drilling rod to pass through and two lug groups respectively positioned at two sides of the drilling rod hole, each lug group comprises a first lug and a second lug which are symmetrically arranged from top to bottom, a lug groove is formed between the first lug and the second lug, and the lug groove is used for being matched with a hanging ring; the locking device comprises a first hydraulic cylinder and a first hydraulic rod, the driving device is connected with the locking device, the driving device can drive the first hydraulic rod to move along the direction parallel to the axis of the drill rod hole so as to lock the lifting ring, when the lifting ring is hung in the lifting lug groove, the driving device drives the locking device to operate, the first hydraulic rod stretches out and can form a closed ring around the lifting ring with the lifting lug groove so as to lock the lifting ring, the slippage between the lifting ring and a drilling tool elevator in the hoisting process is avoided, and the potential safety hazard is reduced.
Description
Technical Field
The utility model relates to an oil development technical field especially relates to a drilling tool elevator.
Background
The drilling equipment often includes drive arrangement, drilling rod and drilling tool elevator, and in the course of the work, drive arrangement is connected with the drilling rod transmission and can drive the drilling rod and rotate and carry out the probing, and the drilling rod usually wears to establish in the drilling tool elevator, and the drilling tool elevator drives the drilling rod and plays the drilling or goes down the drilling through cooperating with rings.
A lifting lug groove matched with the lifting ring is formed in the drilling tool elevator, a worker needs to hang the lifting ring in the lifting lug groove and then penetrates through a protection pin, and the lifting ring can be prevented from slipping from the lifting lug groove by the protection pin; after the protection pin is arranged in a penetrating mode, the worker lifts the hanging ring, so that the drilling tool elevator drives the drilling rod to move upwards, the drilling rod is lifted out, and the drilling is completed.
But the action of wearing to establish the protection pin needs to be accomplished by staff's manual, and the operation degree of difficulty is big, wears to establish in place easily manually moreover to can lead to the rings slippage, cause the drilling tool to fall into the well even, consequently have great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a drilling tool elevator for there is the problem of great potential safety hazard after rings and the cooperation of drilling tool elevator among the solution prior art.
In order to achieve the above objects, the embodiment of the present invention provides a drilling tool elevator comprising an elevator main body, two locking devices having the same structure, and at least one driving device, wherein,
the elevator main body is provided with a drill rod hole for a drill rod to pass through and two lug groups respectively positioned on two sides of the drill rod hole, each lug group comprises a first lug and a second lug which are arranged in an up-down symmetrical mode, a lug groove is formed between the first lug and the second lug, and the lug groove is used for being matched with a hanging ring;
the locking device comprises a first hydraulic cylinder and a first hydraulic rod, the driving device is connected with the locking device, and the driving device can drive the first hydraulic rod to move along the direction parallel to the axis of the drill rod hole so as to lock the hanging ring.
Compared with the prior art, the embodiment of the utility model provides a drilling tool elevator has following advantage:
the embodiment of the utility model provides a drilling tool elevator is in the use, and after the rings articulate the lug inslot of elevator main part, drive arrangement drive locking device operation, locking device's first hydraulic stem stretches out to can form around the airtight circle of rings with the locking rings with the lug groove, avoided producing the slippage between the in-process rings that rise and drilling tool elevator, reduced the possibility that single rings accident took place, reduced the potential safety hazard.
According to the drilling tool elevator, one side, facing the lifting lug groove, of the second lifting lug is provided with the locking groove, and the first hydraulic rod can stretch into the locking groove to lock the lifting ring.
The drilling tool elevator comprises a first hydraulic cylinder, a second hydraulic cylinder and a first piston, wherein the first hydraulic cylinder comprises a first oil chamber, a second oil chamber and the first piston is positioned between the first oil chamber and the second oil chamber, and the first hydraulic rod is positioned in the second oil chamber and connected with the first piston.
In the drill elevator, the number of the driving devices is two, and the two driving devices have the same structure and are symmetrically arranged about the axis of the drill rod hole.
The drilling tool elevator comprises a second hydraulic cylinder and a second hydraulic rod, wherein an oil cavity of the second hydraulic cylinder is communicated with the first oil cavity, and the second hydraulic rod can move along the direction parallel to the axis of the drill rod hole, so that hydraulic oil in the second hydraulic cylinder enters the first oil cavity.
According to the drilling tool elevator, one end of the second hydraulic rod extends into the lifting lug groove to be in contact with the lifting ring.
The drilling tool elevator further comprises a third hydraulic cylinder and a third hydraulic rod, wherein an oil cavity of the third hydraulic cylinder is communicated with the second oil cavity, and the third hydraulic rod can move in a direction parallel to the axis of the drill rod hole, so that hydraulic oil in the third hydraulic cylinder enters the second oil cavity.
According to the drilling tool elevator, the elevator main body is provided with an installation groove upwards from the bottom, the third hydraulic cylinder is installed in the installation groove, and the third hydraulic rod extends out of the installation groove.
According to the drilling tool elevator, the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder are respectively provided with the dustproof plugs.
According to the drilling tool elevator, a communication pipeline is arranged between the third hydraulic cylinder and the second oil chamber, and a manual valve is arranged on the communication pipeline.
In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, other technical problems, technical features included in technical solutions, and advantageous effects brought by the technical features that can be solved by a drilling tool elevator provided by embodiments of the present invention will be described in further detail in specific embodiments.
Drawings
In order to illustrate more clearly the embodiments of the invention or the technical solutions in the prior art, the drawings which are needed in the description of the embodiments of the invention or the prior art will be briefly described below, it is obvious that the drawings in the following description are only a part of the embodiments of the invention, and the drawings and the description are not intended to limit the scope of the disclosed concept in any way, but to illustrate the disclosed concept for a person skilled in the art by referring to a specific embodiment, and for a person skilled in the art, other drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a first schematic structural diagram of a drilling tool elevator according to an embodiment of the present invention;
FIG. 2 is a schematic bottom view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a cross-sectional view of FIG. 1;
FIG. 5 is a second schematic structural view of a drilling tool elevator according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of fig. 5.
Description of reference numerals:
100-an elevator body; 110-drill rod hole;
121-a first lifting lug; 122-a second lifting lug;
123-lug groove; 124-locking groove;
210-a first hydraulic cylinder; 211-a first oil chamber;
212-a second oil chamber; 213-a first piston;
220-a first hydraulic lever; 310-a second hydraulic cylinder;
320-a second hydraulic rod; 410-a third hydraulic cylinder;
420-a third hydraulic ram; 500-dust plug;
600-a communication pipeline; 700-hanging ring.
Detailed Description
In order to solve the problem that has great potential safety hazard after rings and the drilling tool elevator cooperation among the prior art, the embodiment of the utility model provides a drilling tool elevator, this drilling tool elevator includes the elevator main part, locking device and drive arrangement, in the use, rings articulate in the lug inslot of elevator main part, drive arrangement drive locking device operation, locking device's first hydraulic stem stretches out, and can form the airtight circle around rings with the lug slot formation with locking rings, avoided producing the slippage between the in-process rings that lift and drilling tool elevator, the possibility that single rings accident took place has been reduced, the potential safety hazard has been reduced.
In order to make the above objects, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 to 4, an elevator for a drilling tool according to an embodiment of the present invention includes an elevator main body 100, two locking devices having the same structure, and at least one driving device, wherein the elevator main body 100 is provided with a drill rod hole 110 for a drill rod to pass through and two lug groups respectively located at two sides of the drill rod hole 110, each lug group includes a first lug 121 and a second lug 122 symmetrically arranged from top to bottom, a lug groove 123 is formed between the first lug 121 and the second lug 122, and the lug groove 123 is used for being matched with an elevator ring 700; the locking device comprises a first hydraulic cylinder 210 and a first hydraulic rod 220, and a driving device is connected with the locking device and can drive the first hydraulic rod 220 to move along a direction parallel to the axis of the drill rod hole 110 so as to lock the hanging ring 700.
Specifically, as shown in fig. 1, 2 and 3, the elevator body 100 is centrally provided with a drill pipe hole 110, and the drill pipe hole 110 is used to pass a drill pipe therethrough, so that the drill pipe is caught on the elevator body 100 to move in accordance with the movement of the elevator body 100. Two lifting lug groups are arranged on two sides of the elevator main body 100, and are symmetrically distributed about the axis of the drill pipe hole 110, and the lifting lug groups are used for being connected with the lifting ring 700, so that the elevator main body 100 can move along with the movement of the lifting ring 700.
In this embodiment, as shown in fig. 1 and 4, the two lifting lug groups are identical in structure and described in the orientation shown in fig. 1, each lifting lug group includes a first lifting lug 121 and a second lifting lug 122, and the first lifting lug 121 and the second lifting lug 122 are fixedly connected to the lifting lug main body, and the fixed connection may be configured as welding. The first lifting lug 121 is located above the second lifting lug 122, and the structure of the first lifting lug 121 is the same as that of the second lifting lug 122, for example, a plane parallel to the top surface of the elevator main body 100 is taken as a cross section, and the cross sections of the first lifting lug 121 and the second lifting lug 122 may be rectangular, semicircular or oblong. The first lifting lug 121 and the second lifting lug 122 are arranged oppositely, a lifting lug groove 123 is formed between the first lifting lug 121 and the second lifting lug 122, a plane perpendicular to the top surface of the elevator main body 100 is taken as a cross section, the cross section of the lifting lug groove 123 can be in an optimal arc shape, the opening direction of the lifting lug groove 123 deviates from the drill rod hole 110, the lifting lug groove 123 is used for being matched with the lifting ring 700, and the lifting ring 700 can extend into the lifting lug groove 123 from the opening of the lifting lug groove 123 and is hung in the lifting lug groove 123.
When the hanging ring 700 is hung in the hanging ring groove 123, the locking device is used for being matched with the hanging ring groove 123 to surround the hanging ring 700, and a sealing ring is formed around the hanging ring 700 to prevent the hanging ring 700 from slipping out of the hanging ring groove 123. Specifically, since two lug grooves 123 are formed on both sides of the drill elevator, the number of the locking devices in this embodiment is two, and one locking device corresponds to one lug groove 123. The locking device in this embodiment includes a first hydraulic cylinder 210 and a first hydraulic rod 220, and the first hydraulic cylinder 210 may be disposed inside the elevator main body 100 or may be installed on the top of the elevator main body 100; the first hydraulic rod 220 is located in the first hydraulic cylinder 210 and connected to a piston in the first hydraulic cylinder 210, and the first hydraulic rod 220 can extend out of the first hydraulic cylinder 210 under the driving of the hydraulic oil in the first hydraulic cylinder 210.
In this embodiment, as shown in fig. 4, preferably, the first hydraulic cylinder 210 is installed inside the first lifting lug 121, specifically, a side of the first lifting lug 121 facing the lifting lug groove 123 is a bottom of the first lifting lug 121, the first lifting lug 121 opens a receiving groove from the bottom, the first hydraulic cylinder 210 is located in the receiving groove, and the first hydraulic rod 220 can move along a direction parallel to an axis of the drill rod hole 110, so as to extend out of the bottom of the first lifting lug 121, and can abut against a top of the second lifting lug 122, so as to intercept at an opening of the lifting lug groove 123, so that the lifting ring 700 located in the lifting lug groove 123 cannot slip out of the opening of the lifting lug groove 123. In addition, a groove or a connecting portion may be further provided on the top of the second lifting lug 122, and the groove or the connecting portion is used for cooperating with the first hydraulic rod 220, so as to further improve the locking effect.
The driving device is connected with the locking device and is used for driving the locking device to be matched with the lug groove 123, and specifically, on the basis of the above embodiment, the driving device is used for driving the first hydraulic rod 220 to extend out of the bottom of the first lug 121. In this embodiment, the driving device may be a hydraulic driving device, a pneumatic driving device, or a motor driving device. The driving means may be installed inside the elevator main body 100 or may be installed outside the elevator main body 100.
In summary, when the drilling tool elevator provided by the embodiment is used, after the lifting ring 700 extends into the lifting lug groove 123 and is hung in the lifting lug groove 123, the driving device drives the locking device to operate, the first hydraulic rod 220 in the locking device extends out and can form a closed loop around the lifting ring 700 with the lifting lug groove 123, and the lifting ring 700 is locked. Therefore, the drilling tool elevator provided by the embodiment locks the hanging ring 700 hung with the lifting lug groove 123 by arranging the driving device and the locking device on the drilling tool elevator, so that the phenomenon of slippage between the hanging ring 700 and the drilling tool elevator in the lifting process is avoided, the possibility of accident occurrence of the single hanging ring 700 is reduced, and the potential safety hazard is reduced.
Further, in a possible implementation manner, a locking groove 124 is provided at a side of the second lifting lug 122 facing the lifting lug groove 123, and the first hydraulic rod 220 can extend into the locking groove 124 to lock the lifting ring 700. As shown in fig. 4 and 5, the side of the second lifting lug 122 facing the lifting lug groove 123 is taken as the top of the second lifting lug 122, and in addition to the above-mentioned embodiment, the first hydraulic rod 220 can abut against the top of the second lifting lug 122 to surround the lifting ring 700, in this embodiment, a locking groove 124 is provided at the top of the second lifting lug 122, and the locking groove 124 may be a blind hole or a through hole. In this embodiment, the locking groove 124 is configured to enable the first hydraulic rod 220 to extend into the locking groove 124, so as to further improve the reliability of the connection between the first hydraulic rod 220 and the lifting lug groove 123, and further improve the locking capability of the lifting ring 700.
In one possible implementation, the first hydraulic cylinder 210 includes a first oil chamber 211, a second oil chamber 212, and a first piston 213 located between the first oil chamber 211 and the second oil chamber 212, and the first hydraulic rod 220 is located in the second oil chamber 212 and connected to the first piston 213. On the basis of the above embodiment, the first hydraulic rod 220 can move along the direction parallel to the axis of the drill rod hole 110 by the first piston 213 in the first hydraulic cylinder 210, in this embodiment, the first hydraulic cylinder 210 includes the first oil chamber 211, the second oil chamber 212 and the first piston 213, the first hydraulic rod 220 is connected to the first piston 213 and located in the second oil chamber 212, specifically, as shown in fig. 4 and 6, fig. 4 shows a cross-sectional view of the drill elevator when the first hydraulic rod 220 extends into the locking groove 124; figure 6 shows a cross-sectional view of the tool elevator as the first hydraulic ram 220 is retracted back into the first hydraulic cylinder 210. Flowable hydraulic oil is arranged in the first oil chamber 211 and the second oil chamber 212, and the oil amount of the hydraulic oil can be changed. When the hydraulic oil in the first oil chamber 211 increases, the hydraulic oil pushes the first piston 213 to move downwards, so as to drive the first hydraulic rod 220 to move downwards until the hydraulic oil extends into the locking groove 124; when the hydraulic oil in the second oil chamber 212 increases, the hydraulic oil pushes the first piston 213 upward, thereby moving the first hydraulic rod 220 upward and retracting into the first hydraulic cylinder 210.
In addition to the above embodiment, the first hydraulic cylinder 210 is connected to a driving device that can drive the hydraulic oil in the first and second oil chambers 211 and 212 to change. In this embodiment, since the number of the locking devices is two, the number of the driving devices may be one or two. In one possible implementation, the number of driving devices is two, the two driving devices are identical in structure and are symmetrically arranged about the axis of the drill hole 110, and each driving device is connected with one first hydraulic cylinder 210. In addition, when one driving device is provided, the driving device is connected to the two first hydraulic cylinders 210, respectively.
In one possible implementation, the driving device includes a second hydraulic cylinder 310 and a second hydraulic rod 320, the oil chamber of the second hydraulic cylinder 310 is communicated with the first oil chamber 211, and the second hydraulic rod 320 can move along a direction parallel to the axis of the drill rod hole 110, so that the hydraulic oil in the second hydraulic cylinder 310 enters the first oil chamber 211. Specifically, as shown in fig. 4 and 6, the second hydraulic cylinder 310 includes an oil chamber and a piston, and the second hydraulic rod 320 is connected to the bottom of the piston. In this embodiment, a communication pipeline 600 is provided between the oil chamber of the second hydraulic cylinder 310 and the first oil chamber 211, and the hydraulic oil in the second hydraulic cylinder 310 and the hydraulic oil in the first oil chamber 211 can circulate. Therefore, when an upward force is applied to the second hydraulic rod 320, the second hydraulic rod 320 moves upward, and the piston moves upward, thereby pressing the hydraulic oil in the oil chamber of the second hydraulic cylinder 310 into the first oil chamber 211 of the first hydraulic cylinder 210 through the communication pipe 600, and further pushing the first piston 213 and the first hydraulic rod 220 downward.
On the basis of the above embodiment, the upward force applied to the second hydraulic rod 320 can be applied by a manual driving action or a mechanical driving action, and preferably, in a possible implementation manner, one end of the second hydraulic rod 320 extends into the lifting lug groove 123 to be in contact with the lifting ring 700, and the lifting ring 700 can apply an upward force to the second hydraulic rod 320. As shown in fig. 4, after the hanging ring 700 is hung in the hanging ring groove 123, the hanging ring 700 drives the drilling tool elevator to be lifted upwards, so that the hanging ring 700 acts on the end of the second hydraulic rod 320, the second hydraulic rod 320 and the piston in the second hydraulic cylinder 310 move upwards, and the hydraulic oil in the oil cavity of the second hydraulic cylinder 310 is squeezed into the first oil cavity 211 of the first hydraulic cylinder 210. The arrangement reduces the complexity of manual operation, the second hydraulic rod 320 is driven by the action of the lifting ring 700 to drive the locking device, automatic locking is realized, and the speed and convenience for locking the lifting ring 700 are improved.
Further, in a possible implementation, the driving device further includes a third hydraulic cylinder 410 and a third hydraulic rod 420, the oil chamber of the third hydraulic cylinder 410 is communicated with the second oil chamber 212, and the third hydraulic rod 420 can move along a direction parallel to the axis of the drill rod hole 110, so that hydraulic oil in the third hydraulic cylinder 410 enters the second oil chamber 212. As shown in fig. 4 and 6, third hydraulic cylinder 410 includes an oil chamber and a piston, and third hydraulic rod 420 is connected to the bottom of the piston. In this embodiment, a communication pipeline 600 is provided between the oil chamber of the third hydraulic cylinder 410 and the second oil chamber 212, and it should be noted that the communication pipeline 600 is connected to the bottom of the side surface of the second oil chamber 212. The hydraulic oil in the third hydraulic cylinder 410 can communicate with the hydraulic oil in the second oil chamber 212. Therefore, when an upward force is applied to third hydraulic rod 420, third hydraulic rod 420 moves upward, and the piston moves upward, thereby pressing the hydraulic oil in the oil chamber of third hydraulic cylinder 410 into second oil chamber 212 of first hydraulic cylinder 210 through communication pipe 600, and further pushing first piston 213 and first hydraulic rod 220 upward.
On the basis of the above embodiment, the upward force applied to the third hydraulic rod 420 may be applied by a manual driving action or a mechanical driving action, and preferably, in one possible implementation, an installation groove is provided upward from the bottom on the elevator main body 100, the third hydraulic cylinder 410 is installed in the installation groove, and the third hydraulic rod 420 protrudes from the installation groove. After the operation of the drilling tool elevator is finished, the drilling tool elevator descends to the bottom of the elevator main body 100 along with the hanging ring 700 to be in contact with the loading surface of the drilling platform, the loading surface is a plane, and the loading surface can apply an upward force to the third hydraulic rod 420. As shown in fig. 6, when the bottom of the elevator body 100 contacts the tray surface, the tray surface acts on the end of the third hydraulic rod 420, so that the third hydraulic rod 420 and the piston in the third hydraulic cylinder 410 move upward, and the hydraulic oil in the oil chamber of the third hydraulic cylinder 410 is pushed into the second oil chamber 212 of the first hydraulic cylinder 210. Such setting has reduced manual operation's loaded down with trivial details degree, utilizes the effect of the mutual power of elevator main part 100 and quotation to drive third hydraulic stem 420 and then drive locking means, has realized automatic unblock, has improved the convenience, and then makes things convenient for rings 700 to take out.
In one possible implementation, the first hydraulic cylinder 210, the second hydraulic cylinder 310, and the third hydraulic cylinder 410 are respectively provided with a dust plug 500. Specifically, as shown in fig. 4 and fig. 6, the bottom portions of the first hydraulic cylinder 210, the second hydraulic cylinder 310, and the third hydraulic cylinder 410 are respectively provided with a dust plug 500, and the dust plug 500 may be a rubber retainer ring, a rubber plug, or a plastic retainer ring.
In one possible implementation, a communication line 600 is provided between third hydraulic cylinder 410 and second oil chamber 212, and a manual valve is provided on communication line 600. The manual valve in this embodiment may be a stop valve, a plug valve, a ball valve, or a butterfly valve, and specifically, the manual valve is used to close the communication pipeline 600, and when the manual valve is locked, the hydraulic oil between the third hydraulic cylinder 410 and the first oil chamber 211 can be prevented from flowing. The hand wheel and handle of the manual valve may be extended to be positioned on top of the elevator body 100. Further, a manual valve may also be provided between the second hydraulic cylinder 310 and the first oil chamber 211. The manual valve can ensure the stability of hydraulic oil in each hydraulic cylinder inside the drilling tool elevator when the drilling tool elevator does not work.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A drilling tool elevator, which is characterized by comprising an elevator main body, two locking devices with the same structure and at least one driving device, wherein,
the elevator main body is provided with a drill rod hole for a drill rod to pass through and two lug groups respectively positioned on two sides of the drill rod hole, each lug group comprises a first lug and a second lug which are arranged in an up-down symmetrical mode, a lug groove is formed between the first lug and the second lug, and the lug groove is used for being matched with a hanging ring;
the locking device comprises a first hydraulic cylinder and a first hydraulic rod, the driving device is connected with the locking device, and the driving device can drive the first hydraulic rod to move along the direction parallel to the axis of the drill rod hole so as to lock the hanging ring.
2. The drilling tool elevator according to claim 1, wherein a locking groove is provided at a side of the second lifting lug facing the lifting lug groove, and the first hydraulic rod can extend into the locking groove to lock the lifting ring.
3. The drill elevator of claim 1, wherein the first hydraulic cylinder includes a first oil chamber, a second oil chamber, and a first piston located between the first oil chamber and the second oil chamber, the first hydraulic rod being located within the second oil chamber and connected to the first piston.
4. The drill elevator of claim 3 wherein said drive means are two in number, both said drive means being identical in construction and symmetrically disposed about the axis of said drill pipe bore.
5. The drilling tool elevator of claim 4, wherein the drive means comprises a second hydraulic cylinder and a second hydraulic rod, the oil chamber of the second hydraulic cylinder being in communication with the first oil chamber, the second hydraulic rod being movable in a direction parallel to the axis of the drill pipe bore to allow hydraulic oil in the second hydraulic cylinder to enter the first oil chamber.
6. The drilling tool elevator of claim 5 wherein one end of the second hydraulic ram extends into the lug well into contact with the lifting eye.
7. The drill elevator of claim 6, wherein the drive means further comprises a third hydraulic cylinder and a third hydraulic rod, the oil chamber of the third hydraulic cylinder being in communication with the second oil chamber, the third hydraulic rod being movable in a direction parallel to the axis of the drill pipe bore to allow hydraulic oil within the third hydraulic cylinder to enter the second oil chamber.
8. The drill elevator of claim 7, wherein the elevator body has a mounting slot formed therein from the bottom upward, the third hydraulic cylinder being mounted in the mounting slot, and the third hydraulic rod extending from the mounting slot.
9. The drilling tool elevator of claim 8, wherein dust plugs are disposed on the first, second and third hydraulic cylinders, respectively.
10. The drilling tool elevator of claim 9, wherein a communication line is provided between the third hydraulic cylinder and the second oil chamber, the communication line having a manual valve disposed thereon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782042.3U CN210483574U (en) | 2019-05-28 | 2019-05-28 | Drilling tool elevator |
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| CN201920782042.3U CN210483574U (en) | 2019-05-28 | 2019-05-28 | Drilling tool elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012676A (en) * | 2019-05-28 | 2020-12-01 | 中国石油天然气股份有限公司 | Drilling tool elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012676A (en) * | 2019-05-28 | 2020-12-01 | 中国石油天然气股份有限公司 | Drilling tool elevator |
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