CN201262051Y - Compound hydraulic clamper - Google Patents
Compound hydraulic clamper Download PDFInfo
- Publication number
- CN201262051Y CN201262051Y CNU2008201001675U CN200820100167U CN201262051Y CN 201262051 Y CN201262051 Y CN 201262051Y CN U2008201001675 U CNU2008201001675 U CN U2008201001675U CN 200820100167 U CN200820100167 U CN 200820100167U CN 201262051 Y CN201262051 Y CN 201262051Y
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- Prior art keywords
- cylinder body
- unclamps
- piston
- unclamped
- oil
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- 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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- 150000001875 compounds Chemical class 0.000 title claims description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 241000239290 Araneae Species 0.000 claims description 38
- 238000005553 drilling Methods 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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Abstract
The utility model discloses a combined hydraulic clamp fastener, which comprises a left loosing oil cylinder, a right loosing oil cylinder and a reinforcement oil cylinder. Compared with the traditional clamp fastener, the combined hydraulic clamp fastener not only can clamp a drill pipe through a disc spring, but also can connect a motor reversion oil way driven by a unit head of a drilling rig to the reinforcement oil cylinder; when the drilling rig turns back to unscrew the threads of the drill pipe, oil liquid of the unit head motor reversion oil way enters into the reinforcement oil cylinder; the reinforcement clamping is realized by utilizing the reversion pressure of the drilling rig, thereby effectively ensuring the clamping reliability of the drill pipe; the left loosing oil cylinder and the right loosing oil cylinder are arranged on the combined hydraulic clamp fastener so as to jack up a clamping disc spring, and the clamp fastener can be loosed through smaller pressure, thereby creating conditions for opening the clamp fastener through the rotation backpressure of the drilling rig, and being beneficial for rotation and propulsion of the drilling rig as well as linkage of the clamp fastener.
Description
Technical field
The utility model relates to a kind of hydraulic pressure chucking device of all-hydraulic drill, particularly a kind of compound hydraulic gripper.
Background technology
Hydraulic gripper at present commonly used can be divided into normally closed type and two kinds open in usual by the state of its slips when not working.
The normally closed type clamper unclamps by spring clamping, oil cylinder, the size of its clamping force depends on the tension force that spring produces, for guaranteeing enough clamping forces, need big specification or more spring, when unclamping clamper, can need further compression spring, therefore need the oil cylinder of the big section of configuration or improve opening pressure to produce bigger thrust, so just caused the physical dimension of clamper to increase, in the hydraulic system that the interlock function is arranged, the opening pressure raising can cause efficient to reduce.
Clamper open in usual clamps with oil cylinder, and spring unclamps, and clamper open in usual is more simple in structure than normally closed type clamper, but its maximum shortcoming is when the oil pressure that breaks down disappears, clamping force also disappears at once, and therefore, it only suits to use creeping on the rig of nearly horizontal drilling.
Hydraulic gripper is as one of main executing agency of all-hydraulic drill, to the basic demand of its proposition is when the clamping drilling rod, action is wanted rapidly, and enough clamping forces are arranged, but present clamper does not have the setting of other boosting oil cylinder because slips can only be once afterburning by oil cylinder, makes that the frictional force between the slips is less, thereby cause clamping unreliable, security incident easily takes place; Need bigger external force when opening clamper in addition, make that not only structure is more complicated, also be unfavorable for the rotation-propelling and the clamper interlock of rig.
The utility model content
In view of this, the purpose of this utility model provides a kind of compound hydraulic gripper, and the setting by boosting oil cylinder can realize that secondary clamps, and clamping is reliable, and is safe in utilization; By two designs of unclamping oil cylinder, can unclamp clamper simultaneously, help the interlock of rig rotation-propelling and clamper with less pressure.
Compound hydraulic gripper of the present utility model, comprise left clamping device and right clamping device, described left clamping device comprises that cylinder body is unclamped on a left side, piston, left slips and left slip spider are unclamped in a left side, a described left side is unclamped piston and is arranged on a left side and unclamps cylinder body inside, and described left slips is arranged on the left slip spider and left slip spider unclamps piston with a left side and links to each other; Described right clamping device comprises that cylinder body is unclamped on the right side, piston, right slips and right slip spider are unclamped in the right side, the described right side is unclamped piston and is arranged on the inside that cylinder body is unclamped on the right side, described right slips is arranged on the right slip spider and right slip spider unclamps piston with the right side and links to each other, also comprise elastic device, described elastic device is installed in a left side and unclamps cylinder body inside, and two ends act on bottom and left bottom of unclamping piston that cylinder body is unclamped on a left side respectively;
Also comprise left lever and right pull bar, an end and the left side of described left lever are unclamped cylinder body and are fixedlyed connected, and the other end of described left lever passes left slip spider and is connected with right slip spider; One end and the right side of described right pull bar are unclamped cylinder body and are fixedlyed connected, and the other end of described right pull bar passes right slip spider and is connected with left slip spider;
Further, described compound hydraulic gripper also includes boosting oil cylinder, and described boosting oil cylinder is arranged on the right side and unclamps cylinder body inside, is provided with the reinforcement piston in the described boosting oil cylinder, and the top of described reinforcement piston is unclamped piston base with the right side and is connected;
Further, described compound hydraulic gripper also comprises oil-in I, oil-in II and oil-in III, and described oil-in I is arranged on a left side and unclamps on the cylinder body, unclamps cylinder body and a left side with a left side and unclamps a left side between the piston and unclamp oil cylinder and communicate; Described oil-in II is arranged on the right side and unclamps on the cylinder body, unclamps cylinder body with the right side and unclamps oil cylinder with the right right side of unclamping between the piston and communicate; Described oil-in III is arranged on the right side and unclamps on the cylinder body and with boosting oil cylinder and communicate;
Further, a described left side is unclamped cylinder body and is included left end cap, and described left end cap is arranged on the bottom that cylinder body is unclamped on a left side; The described right side is unclamped cylinder body and is included right end cap, and described right end cap is arranged on the bottom that cylinder body is unclamped on the right side;
Further, described elastic device is for clamping the butterfly spring;
Further, the top that described left slip spider unclamps piston by a dovetail groove and a left side links to each other, and the top that described right slip spider unclamps piston by a dovetail groove and a left side links to each other;
Further, also comprise base.
The beneficial effects of the utility model are:
(1) compares with traditional clamper, this clamper not only can clamp drilling rod with butterfly spring, but also drill power head CD-ROM drive motor counter-rotating oil circuit can be inserted the auxiliary clamping cylinder of clamper, when the drill rod thread button is unscrewed in the rig counter-rotating, unit head motor counter-rotating oil circuit fluid enters the auxiliary clamping cylinder of clamper, utilize the rig reversal pressure to realize that reinforcement clamps, and can effectively guarantee the reliability that drilling rod clamps;
(2) this clamper is provided with two and unclamps oil cylinder and back down simultaneously and clamp the dish spring, can unclamp clamper with less pressure, and this just helps utilizing rig rotation back pressure to open clamper, helps rig rotation-propelling and clamper and links;
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following manual and claims.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the utility model structural representation;
Fig. 2 is the draw rod positions structural representation;
Fig. 3 is a left view of the present utility model;
Fig. 4 is a right view of the present utility model;
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
Compound hydraulic gripper of the present utility model, comprise left clamping device and right clamping device, left side clamping device comprises that cylinder body 4 is unclamped on a left side, piston 3, left slips 61 and left slip spider 5 are unclamped in a left side, a left side is unclamped piston 3 and is arranged on a left side and unclamps cylinder body 4 inside, and the top that left slips 61 is arranged on the left slip spider 5 and left slip spider 5 unclamps piston 3 by a dovetail groove and a left side links to each other; Right clamping device comprises that cylinder body 9 is unclamped on the right side, piston 8, right slips 62 and right slip spider 3 are unclamped in the right side, the right side is unclamped piston and is arranged on the inside that cylinder body 9 is unclamped on the right side, and the top that right slips 62 is arranged on the right slip spider 7 and right slip spider 7 unclamps piston 8 by the dovetail groove and the right side links to each other;
Elastic device 2 is installed in a left side and unclamps cylinder body 4 inside, and two ends act on bottom and left bottom of unclamping piston 3 that cylinder body 4 is unclamped on a left side respectively; Elastic device 2 adopts and clamps the butterfly spring in the present embodiment;
Also be provided with left lever 13 and right pull bar 12 on the device, an end and the left side of left lever 13 unclamped cylinder body 4 and fixedlyed connected, and the other end of left lever 13 passes right slip spider 7; Cylinder body 4 links to each other; One end of right pull bar 12 unclamps cylinder body 6 with the right side fixedlys connected, and the other end of right pull bar 12 passes left slip spider 5.
A left side is unclamped cylinder body 4 and is provided with oil-in I15, and oil-in I15 and a left side are unclamped cylinder body 4 and unclamped oil cylinder with a left left side of unclamping between the piston 3 and communicate; Oil-in II16 is arranged on that the right side is unclamped on the cylinder body 4 and unclamps cylinder body 9 with the right side and unclamp oil cylinder with the right right side of unclamping between the piston 8 and communicate; Oil-in III17 is arranged on the right side and unclamps on the cylinder body 9 and with boosting oil cylinder 18 and communicate.
For reaching the effect that reinforcement clamps, unclamp cylinder body 9 inside on the right side and be provided with boosting oil cylinder 18, be provided with reinforcement piston 10 in the boosting oil cylinder 18, the top of reinforcement piston 10 and the right side are unclamped piston 8 bottom connections and are touched.
The bottom of unclamping cylinder body 4 on a left side is provided with left end cap 1; The bottom of unclamping cylinder body 9 on the right side is provided with right end cap 11.
Present embodiment also comprises base 14.
The course of work of the present utility model is as follows:
(1) clamps the drilling rod operation
The utility model is compound hydraulic gripper, and when clamping 2 normally closed clamping of butterfly spring, clamping butterfly spring 2 left ends unclamp cylinder body 4, right slip spider 7, the right side and unclamp piston 8 to left movement by compressing left end cap 1 and driving a left side; Clamp butterfly spring 2 right-hand members and unclamp by compressing a left side that piston 3, left slip spider 5, the right side unclamp cylinder body 9, right end cap 11 moves right, thereby make left slips 61 and right slips 62 move toward one another clamp drilling rod.
When reinforcement clamps, oil-in III17 oil-feed, fluid acts on reinforcement piston 10 right sides, and the reinforcement piston moves to left, and drives the right side and unclamps piston 8, right slip spider 7, a left side and unclamp cylinder body 4, left end cap 1 to left movement; Simultaneously fluid acts on the left side of right end cap 11 and drives right end cap 11, the right side and unclamps cylinder body 9, left slip spider 5, a left side and unclamp piston 3 and move right, thereby reinforcement clamps drilling rod.
(2) unclamp the drilling rod operation
As oil-in I15 and oil-in II16 with when feeding pressure oil, hydraulic oil enters by a left side and unclamps piston 3, and a left side unclamps that oil cylinder is unclamped on a left side that cylinder body 4 forms and piston 8 is unclamped on the right side, and the right side is unclamped the right side that cylinder body 9 forms and unclamped in the oil cylinder.
When entering pressure oil in oil cylinder is unclamped on a left side, pressure oil acts on a left side and unclamps piston right-hand member 3, drives a left side and unclamps that piston 3, left slip spider 5, the right side unclamp cylinder body 9, right end cap 11 is moved to the left; Simultaneously pressure oil acts on the right-hand member that cylinder body 4 is unclamped on a left side, drives left end cap 1, a left side and unclamps cylinder body 4, right slip spider 7, the right side and unclamp piston 8 and move right, and a left side is unclamped oil cylinder compression butterfly spring and unclamped drilling rod simultaneously.
In like manner as can be known, when the oil cylinder oil-feed was unclamped on the right side, the compression butterfly spring also unclamped drilling rod;
During practical application, about unclamp oil cylinder oil-feed simultaneously, compress butterfly spring simultaneously, so only the less system pressure of need just can unclamp clamper.The system pressure that helps rig when interlock rotation and produced when advancing unclamps clamper.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. compound hydraulic gripper, comprise left clamping device and right clamping device, described left clamping device comprises that cylinder body (4) is unclamped on a left side, piston (3), left slips (61) and left slip spider (5) are unclamped in a left side, a described left side is unclamped piston (3) and is arranged on a left side and unclamps cylinder body (4) inside, and described left slips (61) is arranged on that left slip spider (5) is gone up and left slip spider (5) unclamps piston (3) with a left side and links to each other; Described right clamping device comprises that cylinder body (9) is unclamped on the right side, piston (8), right slips (62) and right slip spider (3) are unclamped in the right side, the described right side is unclamped piston and is arranged on the inside that cylinder body (9) are unclamped on the right side, described right slips (62) is arranged on that right slip spider (7) is gone up and right slip spider (7) unclamps piston (8) with the right side and links to each other, it is characterized in that: also comprise elastic device (2), described elastic device (2) is installed in a left side and unclamps cylinder body (4) inside, and an end links to each other with the bottom interior wall that cylinder body (4) is unclamped on a left side, and the other end unclamps piston (3) with a left side and links to each other;
Also comprise left lever (13) and right pull bar (12), an end of described left lever (13) unclamps cylinder body (4) with a left side fixedlys connected, and the other end of described left lever (13) passes left slip spider (5) and is connected with right slip spider (7); Cylinder body (4) links to each other; One end of described right pull bar (12) unclamps cylinder body (6) with the right side fixedlys connected, and the other end of described right pull bar (12) passes right slip spider (7) and is connected with left slip spider (5).
2. compound hydraulic gripper according to claim 1, it is characterized in that: described compound hydraulic gripper also includes boosting oil cylinder (18), described boosting oil cylinder (18) is arranged on the right side and unclamps cylinder body (9) inside, be provided with reinforcement piston (10) in the described boosting oil cylinder (18), the top of described reinforcement piston (10) is unclamped piston (8) bottom with the right side and is connected.
3. compound hydraulic gripper according to claim 1 and 2, it is characterized in that: also comprise oil-in I (15), oil-in II (16) and oil-in III (17), described oil-in I (15) is arranged on a left side and unclamps on the cylinder body (4), unclamps cylinder body (4) and a left side with a left side and unclamps a left side between the piston (3) and unclamp oil cylinder and communicate; Described oil-in II (16) is arranged on the right side and unclamps on the cylinder body (4), unclamps cylinder body (9) and the right side with the right side and unclamps the right side between the piston (8) and unclamp oil cylinder and communicate; Described oil-in III (17) is arranged on the right side and unclamps that cylinder body (9) is gone up and communicate with boosting oil cylinder (18).
4. compound hydraulic gripper according to claim 3 is characterized in that: a described left side is unclamped cylinder body (4) and is included left end cap (1), and described left end cap (1) is arranged on the bottom that cylinder body (4) are unclamped on a left side; The described right side is unclamped cylinder body (9) and is included right end cap (11), and described right end cap (11) is arranged on the bottom that cylinder body (9) are unclamped on the right side.
5. compound hydraulic gripper according to claim 4 is characterized in that: described elastic device (2) is for clamping the butterfly spring.
6. compound hydraulic gripper according to claim 5 is characterized in that: the top that described left slip spider (5) unclamps piston (3) by a dovetail groove and a left side links to each other, and the top that described right slip spider (7) unclamps piston (8) by a dovetail groove and a left side links to each other.
7. compound hydraulic gripper according to claim 6 is characterized in that: described compound hydraulic gripper also comprises base (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201001675U CN201262051Y (en) | 2008-09-28 | 2008-09-28 | Compound hydraulic clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201001675U CN201262051Y (en) | 2008-09-28 | 2008-09-28 | Compound hydraulic clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262051Y true CN201262051Y (en) | 2009-06-24 |
Family
ID=40808524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201001675U Expired - Fee Related CN201262051Y (en) | 2008-09-28 | 2008-09-28 | Compound hydraulic clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262051Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268969A (en) * | 2011-07-05 | 2011-12-07 | 江苏省无锡探矿机械总厂有限公司 | Self-weight type drill rod clamp holder |
| CN102606089A (en) * | 2012-03-30 | 2012-07-25 | 中煤科工集团重庆研究院 | Hydraulic clamp holder |
| WO2015100687A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Drill rod clamp for power head drilling rig |
| CN111456629A (en) * | 2020-04-14 | 2020-07-28 | 西安石油大学 | Diameter-variable external-clamping type top-drive casing pipe lowering device |
-
2008
- 2008-09-28 CN CNU2008201001675U patent/CN201262051Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268969A (en) * | 2011-07-05 | 2011-12-07 | 江苏省无锡探矿机械总厂有限公司 | Self-weight type drill rod clamp holder |
| CN102268969B (en) * | 2011-07-05 | 2013-09-04 | 江苏省无锡探矿机械总厂有限公司 | Self-weight type drill rod clamp holder |
| CN102606089A (en) * | 2012-03-30 | 2012-07-25 | 中煤科工集团重庆研究院 | Hydraulic clamp holder |
| WO2015100687A1 (en) * | 2013-12-30 | 2015-07-09 | 恒天九五重工有限公司 | Drill rod clamp for power head drilling rig |
| CN111456629A (en) * | 2020-04-14 | 2020-07-28 | 西安石油大学 | Diameter-variable external-clamping type top-drive casing pipe lowering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Institute of Coal Science Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20160928 |