CN202627996U - Bushing back-up tong - Google Patents
Bushing back-up tong Download PDFInfo
- Publication number
- CN202627996U CN202627996U CN2012202579335U CN201220257933U CN202627996U CN 202627996 U CN202627996 U CN 202627996U CN 2012202579335 U CN2012202579335 U CN 2012202579335U CN 201220257933 U CN201220257933 U CN 201220257933U CN 202627996 U CN202627996 U CN 202627996U
- Authority
- CN
- China
- Prior art keywords
- tong
- support
- slide rail
- bushing
- pressure sensor
- 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 - Lifetime
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a bushing back-up tong, which comprises a tong head, a support and a clamping cylinder, wherein the tail part of the support is provided with a torque transmission device for measuring torque of the tong head, and the torque transmission device is installed between a left slide rail and a right slide rail, which are fixedly connected with a bushing power tong; and the torque transmission device comprises a roller framework which is connected with a support tail plate on the tail part of the support, the roller framework is provided with rollers which move along the left slide rail and the right slide rail, and a pressure sensor and a bearing flange, which are connected to two sides of the tail part of the support and respectively opposite to the left side and the right side of the roller framework, are arranged inside the roller framework. The bushing back-up tong is reasonable in structure and reliable in performance; during the process for feeding a bushing, a pressure sensor of the bushing back-up tong is not directly contacted with the slide rails, no friction between the back-up tong and the surface of the slide rail is produced, so that the torque measurement precision of the bushing back-up tong can be improved, and the service life of the bushing back-up tong also can be prolonged.
Description
Technical field
The utility model relates to the casing back-up tong that uses in the casing job of a kind of oil field.
Background technology
Existing casing back-up tong; It passes, and pressure sensor directly contacts with slide rail in the square device, along with casing back-up tong slides up and down in slide rail together, because pressure sensor and slide rail face produce sliding friction; Both influence the precision of sensors measure pressure value, also influenced the application life of sensor simultaneously.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of the utility model is to provide, the casing back-up tong of dependable performance.
The technical solution of the utility model is:
A kind of casing back-up tong comprises binding clip, support, clamping cylinder, it is characterized in that: the afterbody at support is provided with the biography square device of measuring the binding clip moment of torsion, passes between the left and right slide rail that the square device is loaded on and the sleeve pipe Power Tong is fixing; Said biography square device comprises the roller frame that is connected with the support tailgate of support afterbody; The roller that moves along left and right slide rail is set on the roller frame, is provided with in the roller frame and is connected tailgate both sides, pressure sensor, the pressure-bearing flange relative respectively with the roller frame left and right sides.
The utility model is rational in infrastructure, dependable performance, and in the casing job process, the pressure sensor of casing back-up tong does not directly contact with slide rail, not with the friction of slide rail face, thus the torque measurement precision of raising casing back-up tong, the application life of improving casing back-up tong again.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is I-I sectional view of Fig. 1.
Fig. 3 is the structural representation that passes the square device.
Fig. 4 is III-III sectional view of Fig. 3.
Fig. 5 is the structural representation of embodiment 2.
Fig. 6 is II-II sectional view of Fig. 5.
The specific embodiment
A kind of casing back-up tong comprises binding clip 1, support 2, clamping cylinder 3, and binding clip is connected with support, and an end of clamping cylinder is rack-mount, and the other end is connected with the clamp mechanism of binding clip, but the binding clip of the flexible drive sleeve back-up tong of clamping cylinder is realized clamping and unclamping.Afterbody at support is provided with the biography square device 5 of measuring the binding clip moment of torsion, passes between the left and right slide rail 6 that the square device is loaded on and the sleeve pipe Power Tong is fixing; Said biography square device comprises the roller frame 11 that is connected through bolt 9 with the support tailgate 7 of support afterbody; The roller 13 that moves along left and right slide rail is set on the roller frame; Roller is connected with roller frame through roller pin 12, setting and be connected tailgate both sides, pressure sensor 8, the pressure-bearing flange 10 relative with the roller frame left and right sides respectively in the roller frame.
In the casing job process; The upper and lower displacement of the relative sleeve pipe Power Tong of casing back-up tong; The turning rolls that has a roller is along with the support of back-up tong moves up and down along slide rail together; And do not produce sliding friction between pressure sensor and the turning rolls, and the tailgate that has pressure sensor simultaneously horizontally slips in turning rolls, and pressure sensor contacts with turning rolls and produces pressure.Measure force value through pressure sensor, multiply each other the torque value when promptly measuring the binding clip operation with binding clip center to the arm of force that passes the square device.
Embodiment 2:
Clamping cylinder is arranged on support one side, and all the other are with embodiment 1.
Claims (1)
1. a casing back-up tong comprises binding clip, support, clamping cylinder, it is characterized in that: the afterbody at support is provided with the biography square device of measuring the binding clip moment of torsion, passes between the left and right slide rail that the square device is loaded on and the sleeve pipe Power Tong is fixing; Said biography square device comprises the roller frame that is connected with the support tailgate of support afterbody; The roller that moves along left and right slide rail is set on the roller frame, is provided with in the roller frame and is connected tailgate both sides, pressure sensor, the pressure-bearing flange relative respectively with the roller frame left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202579335U CN202627996U (en) | 2012-06-04 | 2012-06-04 | Bushing back-up tong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202579335U CN202627996U (en) | 2012-06-04 | 2012-06-04 | Bushing back-up tong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627996U true CN202627996U (en) | 2012-12-26 |
Family
ID=47381204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202579335U Expired - Lifetime CN202627996U (en) | 2012-06-04 | 2012-06-04 | Bushing back-up tong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050170A (en) * | 2016-07-05 | 2016-10-26 | 江苏如石机械有限公司 | Drill pipe tong remote notch aligning and positioning device and control method thereof |
| CN107100565A (en) * | 2017-05-17 | 2017-08-29 | 上海兰石重工机械有限公司 | The hydraulic back-up tongs that vertical float is positioned and locked |
-
2012
- 2012-06-04 CN CN2012202579335U patent/CN202627996U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050170A (en) * | 2016-07-05 | 2016-10-26 | 江苏如石机械有限公司 | Drill pipe tong remote notch aligning and positioning device and control method thereof |
| CN106050170B (en) * | 2016-07-05 | 2018-07-06 | 江苏如石机械股份有限公司 | A kind of rotary tong is remotely to gap positioning device and its control method |
| CN107100565A (en) * | 2017-05-17 | 2017-08-29 | 上海兰石重工机械有限公司 | The hydraulic back-up tongs that vertical float is positioned and locked |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226406 Jiangsu city of Nantong province Rudong County town of bencha Wei Hai Road No. 60 Patentee after: Jiangsu stone machinery Limited by Share Ltd Address before: 226406 Jiangsu city of Nantong province Rudong County town of bencha Wei Hai Road No. 60 Patentee before: Rushi Machinery Co., Ltd., Jiangsu |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |