CN201013269Y - Lever-type hydraulic chuck - Google Patents
Lever-type hydraulic chuck Download PDFInfo
- Publication number
- CN201013269Y CN201013269Y CNU2007200313406U CN200720031340U CN201013269Y CN 201013269 Y CN201013269 Y CN 201013269Y CN U2007200313406 U CNU2007200313406 U CN U2007200313406U CN 200720031340 U CN200720031340 U CN 200720031340U CN 201013269 Y CN201013269 Y CN 201013269Y
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- CN
- China
- Prior art keywords
- slip
- thrust bearing
- chuck
- connecting shaft
- lever
- Prior art date
- 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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Abstract
The utility model provides a lever-type oil chuck, which comprises three slip assemblies and a close chamber A. Each of the slip assemblies consists of a slip, an inner connecting shaft, an outer connecting shaft and a butt plate. The three slip assemblies are arranged at an angle of 120 degrees in the radial direction of and on a slip recess. The close chamber A consists of an upper cylinder body, a cylinder holder and a plunger. The upper end of a dished spring is connected with a support tray; the lower end of the dished spring is connected with an upper tray. An upper end of the support tray is provided with nuts. One end of a thrust bearing is connected with a lower tray; the other end of the thrust bearing is connected with the plunger. A pressure bar is fixed outside the cylinder seat. The pressure bar is equipped with an angular contact ball bearing. Lower end of the slip recess is connected with a hexagonal upright shaft. The lower end of the hexagonal upright shaft is provided with round nuts. Spacers are arranged between the pressure bar and the hexagonal upright shaft; an oil dish is empty and fit over the slip recess, and is impacted by the thrust bearing and is assembled on the plunger. The utility model has the advantages of capability of adjusting the pretightening force, large clamping force, excellent radial capacity of compensation, and prolonging the service life of chuck.
Description
Technical field
The utility model relates to the parts in the drilling equipment rock-core borer, specifically refers to a kind of rock-core borer oild chuck.
Background technology
Chuck is as a vitals of rig, and its function is to clamp kelly, to drilling rod transfer torque and axial force, realizes the revolution of drill bit, finishes simultaneously to add, reduce pressure and creep under the effect that feeds oil cylinder.At present, the chuck that the probing industry known to the public is used has Wedge-type chuck and lever chuck, but Wedge-type chuck clamping force is little, and processing difficulties does not have aligning force; The lever chuck is movement in a curve because of jaw body, so its scope of application is little.
Summary of the invention
The purpose of this utility model is the shortcoming that overcomes prior art, and a kind of lever oild chuck is provided, and can regulate the pretightning force size, and chucking power is strong, has good radial compensation ability, has prolonged the application life of chuck.
The technical solution of the utility model is by slips, interior connecting shaft, outer connecting shaft and connecting plate constitute slip assemblies, described slip assemblies has three groups, described three groups of slip assemblies upwards are 120 ° of layouts in the footpath of slip spider, by upper cylinder body, cylinder seat and piston constitute airtight cavity volume A, dish spring upper end is connected with supporting disk, the lower end is connected with top tray, upper end at supporting disk is provided with nut, thrust bearing one end is connected with following pallet, the other end is connected with piston, fixed outside at the cylinder seat has the pressure beam, be equipped with angular contact ball bearing on the pressure beam, the slip spider lower end is connected with six side's vertical shafts, is provided with round nut in the lower end of six side's vertical shafts, be provided with spacer ring pressing between beam and the six side's vertical shafts, trapped fuel circle or whirl in the air be enclosed within slip spider and by the thrust bearing compression fit on piston.
The utility model has the advantages that:
The lever oild chuck is compared its design concept novelty, delicate structure with common dish spring one Wedge-type, tooth bar one Wedge-type chuck, be used for wherein lever principle is ingenious, make chuck after the wearing and tearing of slips clamping face, have good radial compensation ability, make prolong the application life of chuck; In addition, the chucking power that this structure produces is more a lot of greatly than other chucks, and chucking power is strong, and pretightning force can free adjustment.By regulating the pretightning force size, the wearing and tearing of slips there is radial compensation power, can avoid because the wearing and tearing of chuck are frequently changed the situation of slips.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, in normal drilling process, hydraulic oil injects the airtight cavity volume A that is made of upper cylinder body 8, cylinder seat 14 and piston 7 through the hydraulic fluid port of upper cylinder body 8 and produces pressure, force piston 7 to move upward, promoting down through thrust bearing 6, pallet 16, outer connecting shaft 5 rise, connecting shaft 4 and slips 2 are radially producing displacement in driving by connecting plate 3 simultaneously, make slips 2 unclamp drilling rod.
When oil pocket the inside hydraulic oil is not with pressure, under the effect of dish spring 19 thrusts, top tray 16 moves down, compressing outer connecting shaft 5 moves, connecting shaft 4 moves along the radially generation of slip spider 17 in driving by connecting plate 3 when the outer connecting shaft 5 of three groups of slip assemblies is moved down, make three groups of slips clamp three of six side's kellies, be free to promote drilling tool or pressurize and creep into.
Hydraulic oil injects airtight cavity volume A through the hydraulic fluid port of upper cylinder body 8 and produces pressure, force piston 7 to move upward, promoting down through thrust bearing 6, pallet 16, outer connecting shaft 5, top tray 18 rise, dish spring 19 is compressed produces axial force upwards, this axial force is delivered on the slip spider 17 by supporting disk 1, round nut 20, slip spider 17 drives six side's vertical shafts 13, make it be subjected to axial force upwards, this axial force has been added on the two dish angular contact bearings 10 of pressing in the beam 9 finally by the round nut 11 on six side's vertical shafts 13 and the conduction of spacer ring 12.Drip pan 15 be sky be enclosed within slip spider 17 and by thrust bearing 6 compression fit on piston 7, its effect mainly is in order to store lubricating grease to guarantee the normal lubricated of thrust bearing 6, also is in order to reduce the leakage of lubricating grease in addition.
Claims (1)
1. lever oild chuck, it is characterized in that by slips (2), interior connecting shaft (4), outer connecting shaft (5) and connecting plate (3) constitute slip assemblies, described slip assemblies has three groups, described three groups of slip assemblies upwards are 120 ° of layouts in the footpath of slip spider (17), by upper cylinder body (8), cylinder seat (14) and piston (7) constitute airtight cavity volume A, dish spring (19) upper end is connected with supporting disk (1), the lower end is connected with top tray (18), be provided with nut (20) in the upper end of supporting disk (1), thrust bearing (6) one ends are connected with following pallet (16), the other end is connected with piston (7), fixed outside at cylinder seat (14) has pressure beam (9), on pressure beam (9), be equipped with angular contact ball bearing (10), slip spider (17) lower end is connected with six side's vertical shafts (13), be provided with round nut (11) in the lower end of six side's vertical shafts (13), be provided with spacer ring (12) pressing between beam (9) and the six side's vertical shafts (13), drip pan (15) sky be enclosed within slip spider (17) and by thrust bearing (6) compression fit on piston (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200313406U CN201013269Y (en) | 2007-03-13 | 2007-03-13 | Lever-type hydraulic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200313406U CN201013269Y (en) | 2007-03-13 | 2007-03-13 | Lever-type hydraulic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013269Y true CN201013269Y (en) | 2008-01-30 |
Family
ID=39025055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200313406U Expired - Fee Related CN201013269Y (en) | 2007-03-13 | 2007-03-13 | Lever-type hydraulic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013269Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956537A (en) * | 2010-09-07 | 2011-01-26 | 镇江安达煤矿专用设备有限公司 | Hydraulic chunk with function of compensatory clamping |
| CN102330537A (en) * | 2011-09-30 | 2012-01-25 | 三一重型装备有限公司 | Tunnel drilling machine and hydraulic power head device thereof |
| CN102536138A (en) * | 2010-12-09 | 2012-07-04 | 无锡市安迈工程机械有限公司 | Hydraulic chuck of drilling machine |
| CN108249744A (en) * | 2018-03-22 | 2018-07-06 | 东南大学 | Major diameter quartz glass tube reprocesses automatic chuck clamping device |
-
2007
- 2007-03-13 CN CNU2007200313406U patent/CN201013269Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956537A (en) * | 2010-09-07 | 2011-01-26 | 镇江安达煤矿专用设备有限公司 | Hydraulic chunk with function of compensatory clamping |
| CN102536138A (en) * | 2010-12-09 | 2012-07-04 | 无锡市安迈工程机械有限公司 | Hydraulic chuck of drilling machine |
| CN102330537A (en) * | 2011-09-30 | 2012-01-25 | 三一重型装备有限公司 | Tunnel drilling machine and hydraulic power head device thereof |
| CN108249744A (en) * | 2018-03-22 | 2018-07-06 | 东南大学 | Major diameter quartz glass tube reprocesses automatic chuck clamping device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20100313 |