CN2528922Y - Multiple fluid-pressure clamper - Google Patents
Multiple fluid-pressure clamper Download PDFInfo
- Publication number
- CN2528922Y CN2528922Y CN 02224484 CN02224484U CN2528922Y CN 2528922 Y CN2528922 Y CN 2528922Y CN 02224484 CN02224484 CN 02224484 CN 02224484 U CN02224484 U CN 02224484U CN 2528922 Y CN2528922 Y CN 2528922Y
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- main
- spring
- utility
- clamper
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Abstract
The utility model relates to a multiple fluid-pressure clamper, which is suitable for fully hydraulic drill. The utility model comprises a slip recess, a slip, a main spring, a main cylinder and a main piston, the main piston is arranged in the main cylinder, one end of the main piston is provided with the main spring, the main piston is connected with the movable slip recess, and one end of the movable slip recess is provided with a side cylinder which brings into play an overlapped role with the tension of the main spring. The utility model adds the side cylinder linked with a gyrator on the basis of a normally closed typed clamper. When detaching a drill stem, action force of the side cylinder is overlapped with tension of the main spring to form clamping force while realizing reliable clamping. The utility model has dual advantages of safe and reliable work of the normally closed typed clamper with the effect of spring clamping and large clamping force of normally opened typed clamper with the effect of oil pressure clamping. The utility model has small size of shape and low unsealing pressure and is good for pressure coordination between each branch of the hydraulic system while improving efficiency of the hydraulic system; the utility model matches with a hydraulic chuck in the hydraulic system with linkage function and guarantees coordinate action.
Description
Technical field
The utility model relates to a kind of clamping device, especially for the hydraulic gripper on the all-hydraulic drill with interlock function, is fixed on the front end that rig feeds fuselage usually, is used for fixing drilling tool in the hole.
Background technology
Hydraulic gripper in the past 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, 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 cause 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 unclamps with oil cylinder clamping, spring.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, and clamping force also disappears at once, and therefore, it only should use creeping on the rig of nearly horizontal drilling.
Hydraulic gripper is as one of main executing agency of all-hydraulic drill, and when the basic demand of its proposition was the clamping drilling rod, action was wanted rapidly, and enough clamping forces are arranged.Specifically, two kinds of situation: a are arranged, when unloading the drilling rod screw thread again, guarantee not produce relative slip between the drilling rod that is held and the slips.When rig has the interlock function, require the opening and closing movement of clamper and chuck to coordinate, to guarantee all the time that promptly one of them clamps drilling rod after, another mechanism unclamps again.In addition, the opening pressure of unclamping drilling rod is low, to improve the efficient of hydraulic system.Dash forward when meeting outage or oil pipe explosion during b, rig use, clamper should be able to promptly be clamped drilling rod, effectively prevents drilling rod slippage or " run and bore " under the deadweight effect.This point is being bored vertical or is being even more important during high inclination-angle boring.
Summary of the invention
The utility model provides a kind of compound hydraulic gripper, and it combines spring and clamps the big two-fold advantage of clamp holder clamping power open in usual that the normally closed type clamper is safe and reliable and oil pressure clamps.
Technical solution of the present utility model is: compound hydraulic gripper, comprise slip spider, slips, main spring, master cylinder and main piston, slips is located in the slip spider, stationary slip seat one end is provided with spring base, be provided with main piston in the master cylinder, be provided with main spring between spring base and master cylinder and the main piston, master cylinder is connected by connecting rod with spring base, main piston is connected by connecting rod with movable slip spider, be provided with spring between the described slip spider, movable slip spider one end is provided with auxiliary oil cylinder with the tension force superposition effect of main spring by connecting rod and main piston, is provided with auxiliary piston in the auxiliary oil cylinder.
The utility model is on the basis of normally closed type clamper, has set up an auxiliary oil cylinder.By can the clamping drilling tool condition of not slippage in vertical drilling determine the tension force of main spring, the spring that just can use small-sized is as application of force source, thereby is that the appearance and size that reduces clamper has been created condition.When drilling rod is unloaded in gyrator counter-rotating, there is pressure oil to enter auxiliary oil cylinder and produces thrust, with the tension force superposition of main spring, to guarantee reliably drilling rod in the holes for clamping.When unclamping, the thrust of master cylinder only need overcome the tension force of main spring, and opening pressure is lower, has improved the efficient of hydraulic system.On the rig that the interlock function is arranged, this clamper cooperate with oild chuck can guarantee first clamping, after the coordination of unclamping.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Compound hydraulic gripper, comprise slip spider 3,7, slips 5, main spring 9, master cylinder 13 and main piston 12, slip spider 3,7 is located on the clamper slide rail 1, be provided with spring 6 between the slip spider 3,7, slips 5 is located in the slip spider 3,7, is provided with inserted link 4 axial restraint slips 5 in the slip spider 3,7, two inserted links 4 are extracted out, desirablely go out slips 5, the clamper through hole is extended, so that by the particle size drilling tool.Stationary slip seat 7 one ends are provided with spring base 8, be provided with main spring 9 between spring base 8 and master cylinder 13 and the main piston 12, be provided with main piston 12 in the master cylinder 13, master cylinder 13 is connected by connecting rod 14 with spring base 8, described connecting rod 14 adopts bolt, bolt 14 can be regulated the size of main spring 9 tension force, main piston 12 is connected by connecting rod 2 with movable slip spider 3, described connecting rod 2 adopts bolt, the size that bolt 2 adjustable clamp are held device slips 5 opening degrees, movable slip spider 3 one ends are provided with auxiliary oil cylinder 11 with the tension force superposition effect of main spring 9 by connecting rod 2 and main piston 12, are provided with auxiliary piston 10 in the auxiliary oil cylinder 11.
The utility model operating principle is: when pressure oil entered master cylinder 13, under the effect of pressure oil, main piston 12 moved compression main spring 9, and by the effect of connecting rod 2 and spring 6, movable slip spider 3 is moved to the left simultaneously, and clamper unclamps.When the master cylinder oil return, under main spring 9 tension force effects, main piston 12 moves, and compresses spring 6 simultaneously, and movable slip spider 3 moves right clamp holder clamping.When gyrator reverses, there is pressure oil to enter auxiliary oil cylinder 11 and produces thrust, this moment, the clamping force of clamper was the thrust sum of the tension force and the auxiliary oil cylinder 11 of main spring 9, can clamp drilling rod reliably when guaranteeing shackle.When the gyrator stall, auxiliary oil cylinder 11 releasing pressure automaticallies, thrust disappears, and only keeps the tension force of main spring 9, continues to clamp drilling rod.
Claims (2)
1, compound hydraulic gripper, comprise slip spider (3,7), slips (5), main spring (9), master cylinder (13) and main piston (12), slips (5) is located at slip spider (3,7) in, stationary slip seat (7) one ends are provided with spring base (8), be provided with main piston (12) in the master cylinder (13), be provided with main spring (9) between spring base (8) and master cylinder (13) and the main piston (12), master cylinder (13) is connected by connecting rod (14) with spring base (8), main piston (12) is connected by connecting rod (2) with movable slip spider (3), it is characterized in that: described slip spider (3,7) be provided with spring (6) between, movable slip spider (3) one ends are provided with by connecting rod (2) and main piston (12) and the auxiliary oil cylinder (11) of the tension force superposition effect of main spring (9), are provided with auxiliary piston (10) in the auxiliary oil cylinder (11).
2, compound hydraulic gripper as claimed in claim 1 is characterized in that: described connecting rod (14,2) adopts adjustable bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224484 CN2528922Y (en) | 2002-01-30 | 2002-01-30 | Multiple fluid-pressure clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224484 CN2528922Y (en) | 2002-01-30 | 2002-01-30 | Multiple fluid-pressure clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528922Y true CN2528922Y (en) | 2003-01-01 |
Family
ID=33701888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224484 Expired - Lifetime CN2528922Y (en) | 2002-01-30 | 2002-01-30 | Multiple fluid-pressure clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528922Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924286B (en) * | 2006-09-29 | 2010-11-03 | 重庆科技学院 | Hydraulic gripper for gas extraction, drainage and discharge driller |
| CN102116018A (en) * | 2011-01-06 | 2011-07-06 | 中国地质大学（武汉） | Full-hydraulic continuous-penetration static sounding machine with double oil cylinder groups |
| CN101363310B (en) * | 2008-09-28 | 2011-09-14 | 煤炭科学研究总院重庆研究院 | Linkage hydraulic clamper for mining fully hydraulic rig |
| CN101775965B (en) * | 2010-02-09 | 2012-06-27 | 煤炭科学研究总院西安研究院 | Open-top composite clamp holder |
| CN103272318A (en) * | 2013-06-01 | 2013-09-04 | 刘冠法 | Anesthesia support |
-
2002
- 2002-01-30 CN CN 02224484 patent/CN2528922Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924286B (en) * | 2006-09-29 | 2010-11-03 | 重庆科技学院 | Hydraulic gripper for gas extraction, drainage and discharge driller |
| CN101363310B (en) * | 2008-09-28 | 2011-09-14 | 煤炭科学研究总院重庆研究院 | Linkage hydraulic clamper for mining fully hydraulic rig |
| CN101775965B (en) * | 2010-02-09 | 2012-06-27 | 煤炭科学研究总院西安研究院 | Open-top composite clamp holder |
| CN102116018A (en) * | 2011-01-06 | 2011-07-06 | 中国地质大学（武汉） | Full-hydraulic continuous-penetration static sounding machine with double oil cylinder groups |
| CN103272318A (en) * | 2013-06-01 | 2013-09-04 | 刘冠法 | Anesthesia support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120130 Granted publication date: 20030101 |