CN2916103Y - Hydraulic cathead device - Google Patents
Hydraulic cathead device Download PDFInfo
- Publication number
- CN2916103Y CN2916103Y CN 200620039364 CN200620039364U CN2916103Y CN 2916103 Y CN2916103 Y CN 2916103Y CN 200620039364 CN200620039364 CN 200620039364 CN 200620039364 U CN200620039364 U CN 200620039364U CN 2916103 Y CN2916103 Y CN 2916103Y
- Authority
- CN
- China
- Prior art keywords
- cathead
- oil cylinder
- cylinder
- square tube
- piston rod
- 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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- Earth Drilling (AREA)
Abstract
The utility model provides a hydraulic cathead device used for round pipe mechanical clamping and loosening operation in oil well. An inner square cylinder is arranged outside a cathead oil cylinder, and an outer square cylinder is arranged outside the inner square cylinder. The lower body of the cathead oil cylinder is connected with the outer square cylinder base through a cylindrical pin. The square joint of the piston rod top on the cathead oil cylinder is connected with the inner square cylinder through a screw pin. Thus the cathead oil cylinder and the holding inner and outer square cylinders form a assembly. The outer square cylinder base can directly fixed on the drill stand through a bolt, to realize easy and stable assembling and convenient disassembling. When the device works, the piston rod on the cathead oil cylinder makes the inner square cylinder and a movable pulley to stretch out at the same time. A steel rope drags a large forceps to perform clamping and loosening through the movable and stable pulleys. During the whole operating process, the cathead oil cylinder is always in position under the control of the inner and outer square cylinders, thus realizing safe and steady operation. The hydraulic cathead device can also provide the same function if the cathead oil cylinder body is connected with the inner square cylinder and the piston rod is connected with the outer square cylinder.
Description
Technical field
The utility model relates to the hydraulic catwork device that oil drilling machine degree of tightness oil pipe, drilling rod, sleeve pipe and brill such as endure at the operation of tubular pillar screw thread.
Background technology
During petroleum drilling operation, using the cat head oil cylinder to drive the rope traction tong tubular pillar screw thread such as endures to oil pipe, drilling rod, sleeve pipe and brill and links closely or release, because the tractive force of wire rope is very big, adopt at present and increase support members such as holder and diagonal member when on the rig platform, the cat head oil cylinder being installed, the position and the requirement of welding of installing are all very high, move trouble.The cat head oil cylinder is to be stretched out by piston rod be with the movable pulley haulage cable simultaneously, and is very big to the active force of piston rod, causes that easily piston rod rocks and the sealing ring leakage of oil, not too safe.
Summary of the invention
For the installation that changes present cat head oil cylinder and the deficiency of working condition, the utility model provides a kind of hydraulic catwork device, is one with the inside and outside square tube suit of cat head oil cylinder and support, and not only simple installation is firm, and can make cat head oil cylinder stable working safety.
The technical scheme that its technical problem that solves the utility model adopts is: suit inner square tube outside the cat head oil cylinder, inner square tube be the outer square tube of suit more outward; The lower cylinder body of cat head oil cylinder is connected with pin with the base of outer square tube, and the piston rod head square joint of cat head oil cylinder is connected with spiral pin with inner square tube, and the inside and outside square tube suit of cat head oil cylinder and support is an one like this.The last tops of inner square tube is installed movable pulley; Fixed pulley is installed in the outside, bottom of outer square tube; The wire rope series connection is arranged between the moving fixed pulley.On the outer square tube base installing hole is arranged, can be directly on the rig platform appropriate location firm with bolt, simple installation is firm, moves conveniently.During work; the piston rod of cat head oil cylinder drives inner square tube and movable pulley stretches out together; wire rope links closely through moving fixed pulley traction tong or releases operation; in the entire job process; the cat head oil cylinder is subjected to the suit of inside and outside square tube spacing all the time; cylinder body and piston rod all obtain reliably protecting, stable working safety.
The utility model beneficial effect is: the cat head oil cylinder is sleeved in the inside and outside square tube, and the single unit system compact conformation, simple installation is firm, stable working safety.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structure chart of the present utility model.
Among the figure 1, movable pulley, 2, loam cake, 3, square joint, 4, spiral pin, 5, piston rod, 6, the cat head oil cylinder, 7, inner square tube, 8, outer square tube, 9, wire rope, 10, fixed pulley, 11, lower cylinder body, 12, pin, 13, joint A, 14, joint B, 15, base.
The specific embodiment
The outer suit inner square tube of cat head oil cylinder (6) (7) of hydraulic catwork device, the outer square tube (8) of the outer suit again of inner square tube (7); The lower cylinder body (11) of cat head oil cylinder (6) is connected with pin (12) with the base (1 5) of outer square tube (8); Piston rod (5) the head square joint (3) of cat head oil cylinder (6) is connected with spiral pin (4) with inner square tube (7), and the inner square tube (7) and outer square tube (8) suit of cat head oil cylinder (6) and support are one like this.Movable pulley (1) is installed at loam cake (2) top of inner square tube (7); Fixed pulley (10) is installed in the outside, below of outer square tube (8), the wire rope (9) of connecting between the moving fixed pulley.The base (15) of outer square tube (8) bottom is directly used bolton on the rig platform, simple installation is firm.One side of outer square tube (8) has joint A (13) to be connected with the working chamber up and down of cat head oil cylinder (6) by taking over joint B (14), when joint B (14) connects hydraulic oil, joint A (13) connects oil return pipe, because oil cylinder lower cylinder body (11) is fixedlyed connected with the base (15) of outer square tube (8), piston rod (5) stretches out, the movable pulley (1) that promotes inner square tube (7) and top thereof stretches out together reposefully, and wire rope (9) process movable pulley (1) and fixed pulley (10) traction tong link closely to the tubular pillar screw thread or release operation.When joint A (13) connection hydraulic oil, joint B (14) connects oil return pipe, and piston rod (5) drives inner square tube (7) and is withdrawn into together in the outer square tube (8), and in the entire job process, the cat head oil cylinder is subjected to the suit of inside and outside square tube spacing all the time, stable working safety.
The utility model hydraulic catwork device also can be connected the cylinder body of cat head oil cylinder (6) with inner square tube (7), piston rod (5) is connected with outer square tube (8), and function is the same.
Claims (1)
1, a kind of hydraulic catwork device comprises cat head oil cylinder, inner square tube, outer square tube, it is characterized in that: the outer suit inner square tube of cat head oil cylinder, the outer suit foreign side of inner square tube tube; The cylinder body of cat head oil cylinder is connected with outer square tube, and the piston rod of cat head oil cylinder is connected with inner square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039364 CN2916103Y (en) | 2006-02-06 | 2006-02-06 | Hydraulic cathead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039364 CN2916103Y (en) | 2006-02-06 | 2006-02-06 | Hydraulic cathead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916103Y true CN2916103Y (en) | 2007-06-27 |
Family
ID=38187011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039364 Expired - Fee Related CN2916103Y (en) | 2006-02-06 | 2006-02-06 | Hydraulic cathead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916103Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900382A (en) * | 2011-07-28 | 2013-01-30 | 吴江市宏亿纺织有限公司 | Hydraulic cathead device |
| CN106761491A (en) * | 2017-03-23 | 2017-05-31 | 成都来宝石油设备有限公司 | The drilling and completing fluids pressure cat head of three faces protection steel wire rope |
| CN106869828A (en) * | 2017-03-23 | 2017-06-20 | 成都来宝石油设备有限公司 | Improve the hydraulic catwork structure of security performance |
| CN106968622A (en) * | 2017-03-23 | 2017-07-21 | 成都来宝石油设备有限公司 | Prevent the hydraulic catwork that guy wire is hurted sb.'s feelings |
-
2006
- 2006-02-06 CN CN 200620039364 patent/CN2916103Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900382A (en) * | 2011-07-28 | 2013-01-30 | 吴江市宏亿纺织有限公司 | Hydraulic cathead device |
| CN106761491A (en) * | 2017-03-23 | 2017-05-31 | 成都来宝石油设备有限公司 | The drilling and completing fluids pressure cat head of three faces protection steel wire rope |
| CN106869828A (en) * | 2017-03-23 | 2017-06-20 | 成都来宝石油设备有限公司 | Improve the hydraulic catwork structure of security performance |
| CN106968622A (en) * | 2017-03-23 | 2017-07-21 | 成都来宝石油设备有限公司 | Prevent the hydraulic catwork that guy wire is hurted sb.'s feelings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Cai Bingyu Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Cai Bingyu Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Cai Bingyu Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20110206 |