CN103821468A - Double pendulum rod complex holder - Google Patents
Double pendulum rod complex holder Download PDFInfo
- Publication number
- CN103821468A CN103821468A CN201410086265.8A CN201410086265A CN103821468A CN 103821468 A CN103821468 A CN 103821468A CN 201410086265 A CN201410086265 A CN 201410086265A CN 103821468 A CN103821468 A CN 103821468A
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- fork
- bearing pin
- push rod
- side plate
- depression bar
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- Clamps And Clips (AREA)
Abstract
The invention discloses a double pendulum rod compound holder, which comprises a front baffle, an upper slip segment, a lower slip segment, a lead screw, a compression bar, a compression bar pin roll, a pendulum rod, a pendulum rod pin roll, a mandril pin roll, a mandril, a side plate, a back baffle, a piston, elastic devices, a cylinder and a base. A force-applying device and a stress device of the double pendulum rod compound holder adopt the upper and lower double-layer design, and thus the size of the holder in the length direction is reduced. The left and right oil cylinders of the holder are internally provided with a set of elastic device respectively, pretightening force of the elastic devices are transmitted to the slip group by virtue of the lever principle, and thus a drill pipe is clamped. The power arm of a lever is larger than the resisting arm, so the holder has the function of increasing force. The slip group comprises the left and right slips, each slip is composed of the upper slip segment and the lower slip segment, and the slips are connected through the lead screw. Under the state that the holder clamps the drill pipe, the lead screw for connecting the slips is disassembled, the upper slip segment of each slip is removed, and thus the drill pipe is taken out. The double pendulum rod compound holder has a small external dimension and large opening, so the field use is facilitated.
Description
Technical field
The present invention relates to drilling machine clamp holder, relate in particular to a kind of double swing-bar combined type clamper, for drilling tool in all-hydraulic drill clamping hole.
Background technology
Clamper is widely used on all kinds of rigs, and its effect is to coordinate chuck to realize machinery and twist, unload drilling rod, also can be used for, the interior drilling tool of clamping hole when lower brill, prevents drilling tool slippage.The form of structure of clamper has multiple, common are normally closed type and open in usual.
Oscillating rod type clamper is generally made up of staggered form fork and oil cylinder, and its action principle and scissors are similar, and oil cylinder is its application of force source.Generally in the majority with structure applications open in usual.Normally closed type fork clamper is because of its complex structure, and overall dimensions are larger, and application seldom.Meeting under the requirement that clamping ability is large, design combined type fork clamper, can make its overall dimensions little, has great importance for the performance that improves complete machine.
Double swing-bar combined type clamper adopts special construction design, and force application apparatus and stressing device adopt Dual-layer setting, has shortened the size of clamper length direction.In the situation that not reducing clamping ability, effectively solve the excessive problem of clamper appearance and size.
Summary of the invention
The invention provides a kind of double swing-bar combined type clamper.This clamper is normally closed type, has the features such as overall dimensions are little, clamping ability is strong.In clamper oil cylinder inside, some groups of elastic devices are set, utilize leverage principle, the pretightning force of elastic device is delivered on slips, clamp drilling rod.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of double swing-bar combined type clamper, clamper adopts the strict symmetric design in left and right, comprises front apron 1, lower slips piece 2, upper slips piece 3, screw mandrel 4, depression bar 5, depression bar bearing pin 6, fork 7, fork bearing pin 8, push rod bearing pin 9, push rod 10, side plate 11, backboard 12, piston 13, elastic device 14, cylinder barrel 15 and base 16.
Wherein, piston 13 forms boosting oil cylinder chamber II with cylinder barrel 15, and piston 13, side plate 11 and cylinder barrel 15 compositions unclamp oil cylinder chamber I.
Elastic device 14 is arranged in the II of boosting oil cylinder chamber, and one end withstands on cylinder barrel 15, and the other end withstands on piston 13.
Fork bearing pin 8 is arranged in front apron 1 and backboard 12, and fork bearing pin 8 is arranged in fork 7 simultaneously, and fork 7 rotates around fork bearing pin 8.
Depression bar bearing pin 6 is arranged in depression bar 5 and fork 7, and depression bar 5 and fork 7 are hinged.
Push rod bearing pin 9 is arranged in push rod 10 and fork 7, and push rod 10 is hinged with fork 7.
On side plate 11, have cylindrical hole 17 and lower cylindrical hole 18, depression bar 5 is arranged in the upper cylindrical hole 17 of side plate 11, moves along the axis direction of upper cylindrical hole 17; Push rod 10 is arranged in the lower cylindrical hole 18 of side plate 11, moves along the axis direction of lower cylindrical hole 18.
Push rod 10 one end are connected by screw with piston 13, and the other end and fork 7 are hinged.
Side plate 11 is bolted with cylinder barrel 15, and side plate 11 is bolted with front apron 1 and backboard 12.
On lower slips piece 2 and upper slips piece 3, have screwed hole, lower slips piece 2 is connected by screw mandrel 4 with upper slips piece 3.
On lower slips piece 2 and upper slips piece 3, have cylinder groove, the cylinder boss part of push rod 5 is snapped in cylinder groove, connect lower slips piece 2 and upper slips piece 3 by screw mandrel 4, by push rod 5 and upper and lower slip segment fixed installation.
Described elastic device 14 is dish spring or cylindrically coiled spring.
Beneficial effect
Compared with prior art, the beneficial effect of double swing-bar combined type clamper of the present invention is:
(1) double swing-bar combined type clamper has increased by one group of elastic device in II inside, boosting oil cylinder chamber, utilizes lever principle that the pretightning force of elastic device is passed to slips, clamps drilling rod.Reach and do not have hydraulic oil to make the object that the used time also can clamp drilling rod.Have hydraulic oil to do the used time, the power that clamps drilling rod is the pretightning force of elastic device generation and the stack of the active force that boosting oil cylinder chamber II produces
(2) clamper is in clamping process, and fork rotates around fork bearing pin.Distance between push rod bearing pin and fork bearing pin is considered as power arm, and the distance between depression bar bearing pin and fork bearing pin is considered as resistance arm, and power arm is less than resistance arm.While clamping drilling rod, the active force that oil cylinder produces is greater than the power of slips clamping drilling rod, and clamper has boosting function.
(3) slips component left and right slips, slips divides again upper and lower slip segment, is connected with screw mandrel.Under the state of clamp holder clamping drilling rod, the connection wire rod of dismounting slips, the upper slips piece of removable slips, takes out drilling rod.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of side plate;
Fig. 4 is slips structural representation;
Fig. 5 is lower slips block structure schematic diagram;
Fig. 6 is pressure rod structure schematic diagram.
In figure, 1 is front apron; 2 is lower slips piece; 3 is upper slips piece; 4 is screw mandrel; 5 is depression bar; 6 is depression bar bearing pin; 7 is fork; 8 is fork bearing pin; 9 is push rod bearing pin; 10 is push rod; 11 is side plate; 12 is backboard; 13 is piston; 14 is elastic device; 15 is cylinder barrel; 16 is base; 17 is upper cylindrical hole; 18 is lower cylindrical hole.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
A kind of double swing-bar combined type clamper, clamper adopts the strict symmetric design in left and right.Referring to Fig. 1.Comprise front apron 1, lower slips piece 2, upper slips piece 3, screw mandrel 4, depression bar 5, depression bar bearing pin 6, fork 7, fork bearing pin 8, push rod bearing pin 9, push rod 10, side plate 11, backboard 12, piston 13, elastic device 14, cylinder barrel 15 and base 16.
Wherein, piston 13 forms boosting oil cylinder chamber II with cylinder barrel 15, and piston 13, side plate 11 and cylinder barrel 15 compositions unclamp oil cylinder chamber I.
Elastic device 14 is arranged in the II of boosting oil cylinder chamber, and one end withstands on cylinder barrel 15, and the other end withstands on piston 13.
Fork bearing pin 8 is arranged in front apron 1 and backboard 12, and fork bearing pin 8 is arranged in fork 7 simultaneously, and fork 7 rotates around fork bearing pin 8.
Depression bar bearing pin 6 is arranged in depression bar 5 and fork 7, and depression bar 5 and fork 7 are hinged.
Push rod bearing pin 9 is arranged in push rod 10 and fork 7, and push rod 10 is hinged with fork 7.
On side plate 11, have cylindrical hole 17 and lower cylindrical hole 18, depression bar 5 is arranged in the upper cylindrical hole 17 of side plate 11, moves along the axis direction of upper cylindrical hole 17; Push rod 10 is arranged in the lower cylindrical hole 18 of side plate 11, moves along the axis direction of lower cylindrical hole 18.
Push rod 10 one end are connected by screw with piston 13, and the other end and fork 7 are hinged.
Side plate 11 is bolted with cylinder barrel 15, and side plate 11 is bolted with front apron 1 and backboard 12.
On lower slips piece 2 and upper slips piece 3, have screwed hole, lower slips piece 2 is connected by screw mandrel 4 with upper slips piece 3.
On lower slips piece 2 and upper slips piece 3, have cylinder groove, the cylinder boss part of push rod 5 is snapped in cylinder groove, connect lower slips piece 2 and upper slips piece 3 by screw mandrel 4, by push rod 5 and upper and lower slip segment fixed installation.
Described elastic device 14 is dish spring or cylindrically coiled spring.
The course of work of the present invention is as follows:
(1) clamp drilling rod operation
The present invention is normally closed type clamper.Under nature, unclamp oil cylinder chamber I and boosting oil cylinder chamber II does not have hydraulic oil effect, elastic device 14 holds out against piston 13 under the effect of pretightning force, and piston 13 holds out against push rod 10.Push rod 10 passes to depression bar 5 by fork 7 by power.Depression bar 5 holds out against upper slips piece 3 and lower slips piece 2 simultaneously, clamps drilling rod.In the time of the larger clamping force of needs, in the II of boosting oil cylinder chamber, pass into hydraulic oil, unclamp not fuel feeding of oil cylinder chamber I, hydraulic oil acts on piston 13, and piston 13 passes to depression bar 5 by active force by push rod 10 and fork 7.Now, clamping the power of drilling rod is that pretightning force and the hydraulic oil of elastic device 14 acts on the thrust sum that piston 13 produces.
(2) unclamp drilling rod operation
Enter hydraulic oil to unclamping in the I of oil cylinder chamber, fuel cut-off in the II of boosting oil cylinder chamber, the thrust of unclamping the hydraulic oil generation in the I of oil cylinder chamber is greater than the pretightning force of elastic device, drive push rod 10 counter motions, fork 7 turns clockwise around fork bearing pin 8, drives depression bar 5 to regain, and clamper unclamps.
Finally it should be noted that: obviously, above-described embodiment is only for example of the present invention is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being amplified out thus or variation are still among protection scope of the present invention.
Claims (4)
1. a double swing-bar combined type clamper, is characterized in that: double swing-bar combined type clamper adopts special construction design, and force application apparatus and stressing device adopt Dual-layer setting.Comprise front apron (1), lower slips piece (2), upper slips piece (3), screw mandrel (4), depression bar (5), depression bar bearing pin (6), fork (7), fork bearing pin (8), push rod bearing pin (9), push rod (10), side plate (11), backboard (12), piston (13), elastic device (14), cylinder barrel (15) and base (16);
Wherein, piston (13) unclamps oil cylinder chamber I with cylinder barrel (15) composition boosting oil cylinder chamber II, piston (13), side plate (11) and cylinder barrel (15) composition;
Elastic device (14) is arranged in the II of boosting oil cylinder chamber, and it is upper that one end withstands on cylinder barrel (15), and the other end withstands on piston (13); Fork bearing pin (8) is arranged in front apron (1) and backboard (12), and fork bearing pin (8) is arranged in fork (7) simultaneously, and fork (7) rotates around fork bearing pin (8);
Depression bar bearing pin (6) is arranged in depression bar (5) and fork (7), and depression bar (5) and fork (7) are hinged.Push rod bearing pin (9) is arranged in push rod (10) and fork (7), and push rod (10) is hinged with fork (7).On side plate (11), have cylindrical hole (17) and lower cylindrical hole (18), depression bar (5) is arranged in the upper cylindrical hole (17) of side plate (11), along the axis direction motion of upper cylindrical hole (17); Push rod (10) is arranged in the lower cylindrical hole (18) of side plate (11), along the axis direction motion of lower cylindrical hole (18).Push rod (10) one end is connected by screw with piston (13), and the other end and fork (7) are hinged.Side plate (11) is bolted with cylinder barrel (15), and side plate (11) is bolted with front apron (1) and backboard (12).
2. double swing-bar combined type clamper according to claim 1, is characterized in that: the power that clamps drilling rod is the pretightning force of elastic device (14) generation and the stack of the active force that boosting oil cylinder chamber II produces.Described elastic device (14) is dish spring or cylindrically coiled spring.
3. double swing-bar combined type clamper according to claim 1, is characterized in that: the distance between described push rod bearing pin (9) and fork bearing pin (8) is greater than the distance between depression bar bearing pin (6) and fork bearing pin (8).
4. according to double swing-bar combined type clamper claimed in claim 1, it is characterized in that: slips is made up of lower slips piece (2) and upper slips piece (3), lower slips piece (2) is connected by screw mandrel (4) with upper slips piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086265.8A CN103821468B (en) | 2014-03-10 | 2014-03-10 | A kind of double swing-bar combined type clamper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086265.8A CN103821468B (en) | 2014-03-10 | 2014-03-10 | A kind of double swing-bar combined type clamper |
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| Publication Number | Publication Date |
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| CN103821468A true CN103821468A (en) | 2014-05-28 |
| CN103821468B CN103821468B (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410086265.8A Active CN103821468B (en) | 2014-03-10 | 2014-03-10 | A kind of double swing-bar combined type clamper |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948123A (en) * | 2015-07-15 | 2015-09-30 | 吉林大学 | Switch type wire-line coring drill pipe holder capable of being operated manually and exerting pretightening force |
| CN111911098A (en) * | 2020-08-24 | 2020-11-10 | 西南石油大学 | Self-adaptive floating slip integrated with pipe column bidirectional coupling |
| CN112756910A (en) * | 2020-12-25 | 2021-05-07 | 中煤科工集团西安研究院有限公司 | Winding device and method for welding type multi-head spiral drill rod |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293153A1 (en) * | 1987-05-25 | 1988-11-30 | Smc Corporation | Parallel gripper |
| CN2127740Y (en) * | 1992-04-16 | 1993-03-03 | 罗仁全 | Polish rod slip for beam-pumping units |
| EP0619166A1 (en) * | 1993-04-05 | 1994-10-12 | UNIVER S.p.A. | Pneumatically actuated gripping device |
| CN1824473A (en) * | 2005-02-24 | 2006-08-30 | 山东科技大学 | Pneumatic mechanical hand clamping tongs |
| CN1914405A (en) * | 2003-12-12 | 2007-02-14 | 瓦克I/P公司 | Method and apparatus for offline standbuilding |
| CN201614894U (en) * | 2010-02-09 | 2010-10-27 | 煤炭科学研究总院西安研究院 | Compound clamp fastener with opened top |
| CN102574283A (en) * | 2009-10-20 | 2012-07-11 | 伊利诺斯工具制品有限公司 | Dual side acting hydraulic grips synchronization |
| CN103061693A (en) * | 2013-01-18 | 2013-04-24 | 中煤科工集团西安研究院 | Oil cylinder counter-supporting type reinforced gripper |
-
2014
- 2014-03-10 CN CN201410086265.8A patent/CN103821468B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293153A1 (en) * | 1987-05-25 | 1988-11-30 | Smc Corporation | Parallel gripper |
| CN2127740Y (en) * | 1992-04-16 | 1993-03-03 | 罗仁全 | Polish rod slip for beam-pumping units |
| EP0619166A1 (en) * | 1993-04-05 | 1994-10-12 | UNIVER S.p.A. | Pneumatically actuated gripping device |
| CN1914405A (en) * | 2003-12-12 | 2007-02-14 | 瓦克I/P公司 | Method and apparatus for offline standbuilding |
| CN1824473A (en) * | 2005-02-24 | 2006-08-30 | 山东科技大学 | Pneumatic mechanical hand clamping tongs |
| CN102574283A (en) * | 2009-10-20 | 2012-07-11 | 伊利诺斯工具制品有限公司 | Dual side acting hydraulic grips synchronization |
| CN201614894U (en) * | 2010-02-09 | 2010-10-27 | 煤炭科学研究总院西安研究院 | Compound clamp fastener with opened top |
| CN103061693A (en) * | 2013-01-18 | 2013-04-24 | 中煤科工集团西安研究院 | Oil cylinder counter-supporting type reinforced gripper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948123A (en) * | 2015-07-15 | 2015-09-30 | 吉林大学 | Switch type wire-line coring drill pipe holder capable of being operated manually and exerting pretightening force |
| CN111911098A (en) * | 2020-08-24 | 2020-11-10 | 西南石油大学 | Self-adaptive floating slip integrated with pipe column bidirectional coupling |
| CN112756910A (en) * | 2020-12-25 | 2021-05-07 | 中煤科工集团西安研究院有限公司 | Winding device and method for welding type multi-head spiral drill rod |
| CN112756910B (en) * | 2020-12-25 | 2022-03-15 | 中煤科工集团西安研究院有限公司 | Winding device and method for welding type multi-head spiral drill rod |
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| Publication number | Publication date |
|---|---|
| CN103821468B (en) | 2015-11-11 |
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