CN201250623Y - Elevating mechanism of main tong of power tongs - Google Patents
Elevating mechanism of main tong of power tongs Download PDFInfo
- Publication number
- CN201250623Y CN201250623Y CNU2008201852051U CN200820185205U CN201250623Y CN 201250623 Y CN201250623 Y CN 201250623Y CN U2008201852051 U CNU2008201852051 U CN U2008201852051U CN 200820185205 U CN200820185205 U CN 200820185205U CN 201250623 Y CN201250623 Y CN 201250623Y
- Authority
- CN
- China
- Prior art keywords
- elevating mechanism
- power tongs
- buoyancy body
- tong
- wheel
- 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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Abstract
The utility model relates to an elevating mechanism of the main tong of power tongs, comprising a main tong and a back-up tong. A space adjusting device is arranged between a floating body arranged on the lower part of the main long and a mangle gear arranged on the upper part of the back-up tong, which leads the space between the floating body and the mangle gear to be adjustable. The utility model had reasonable structure, leads the floating body to move up and down relative to the mangle gear, finds out the thread alternating, off-thread and such situations, and leads the power longs to be used not only as extension tongs but also as casing tongs.
Description
Technical field:
The utility model relates to a kind of oil and gas field drilling well power tongs.
Background technology:
The available dynamic tong, buoyancy body can not be done elevating movement with respect to cut-off wheel, can not in time find situations such as thread alternating and inclined to one side button, and rotary tong, casing tong are all needed independent form.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, make buoyancy body can do elevating movement with respect to cut-off wheel, can in time find situations such as thread alternating and inclined to one side button, make power tongs both can make rotary tong and use, can make the elevating mechanism of the power tongs master pincers of casing tong use again.
Technical solution of the present utility model is:
The elevating mechanism of a kind of power tongs master pincers is characterized in that: comprise main pincers, back-up tong, between the cut-off wheel on the buoyancy body of main pincers bottom and back-up tong top, setting makes the adjustable spacing adjusting device of spacing between buoyancy body and the cut-off wheel.
Described spacing adjusting device comprises the cylinder sleeve of fixedlying connected with buoyancy body, dress piston rod in the cylinder sleeve, and the spring strut of piston rod is stretched out in the dress end in the piston rod, dress compression spring in the spring strut.
The trundle of transfer torque is set between cut-off wheel and buoyancy body.
Described trundle comprises the gear pin that an end is connected with cut-off wheel, the other end suit outer sleeve of gear pin, outer sleeve is connected with buoyancy body, fixed muffle is set in the gear pin, be provided with the pull bar that is connected with outer sleeve in the fixed muffle, the spacer pin of pull bar bottom contacts with the spring housing of fixed muffle below, and a spring is contained in fixed muffle and the spring housing.
Pull bar is connected with outer sleeve by mandrel.
The utility model is rational in infrastructure, makes buoyancy body can do elevating movement with respect to cut-off wheel, both spacing is increased or reduces, can in time find situations such as thread alternating and inclined to one side button, satisfy going up of different tubing strings and detain and the shackle requirement, make power tongs both can make rotary tong and use, can make casing tong again and use.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
Fig. 2 is the configuration diagram of spacing adjusting device.
Fig. 3 is the configuration diagram of the trundle of transfer torque.
Fig. 4 is to use the configuration diagram of power tongs of the present utility model.
The specific embodiment:
The elevating mechanism of a kind of power tongs master pincers comprises main pincers, back-up tong, and between the cut-off wheel 2 on the buoyancy body 1 of main pincers bottom and back-up tong top, setting makes the adjustable spacing adjusting device 3 of spacing between buoyancy body and the cut-off wheel.
Described spacing adjusting device 3 comprises the cylinder sleeve 4 (can be forms such as cylinder jacket or hydraulic cylinder) of fixedlying connected with buoyancy body, dress piston rod 5 in the cylinder sleeve 4, and the spring strut 6 of piston rod is stretched out in the dress end in the piston rod 5, dress compression spring 7 in the spring strut.The trundle 8 of transfer torque is set between cut-off wheel and buoyancy body.
Described trundle 8 comprises the gear pin 9 that an end is connected with cut-off wheel, the other end suit outer sleeve 10 of gear pin, outer sleeve is connected with buoyancy body 1, fixed muffle 11 is set in the gear pin, be provided with the pull bar 12 that is connected by mandrel 13 and outer sleeve in the fixed muffle, the spacer pin 14 of pull bar 12 bottoms contacts with the spring housing 15 of fixed muffle below, and a spring 16 is contained in fixed muffle and the spring housing 15.Outer sleeve 10 can slide up and down along gear pin 9, satisfies the lifting of buoyancy body, and comes transfer torque by the combination of gear pin and outer sleeve.
Claims (5)
1, the elevating mechanism of a kind of power tongs master pincers is characterized in that: comprise main pincers, back-up tong, between the cut-off wheel on the buoyancy body of main pincers bottom and back-up tong top, setting makes the adjustable spacing adjusting device of spacing between buoyancy body and the cut-off wheel.
2, the elevating mechanism of power tongs master pincers according to claim 1, it is characterized in that: described spacing adjusting device comprises the cylinder sleeve of fixedlying connected with buoyancy body, dress piston rod in the cylinder sleeve, the spring strut of piston rod is stretched out in the dress end in the piston rod, dress compression spring in the spring strut.
3, the elevating mechanism of power tongs master pincers according to claim 1 and 2 is characterized in that: the trundle that transfer torque is set between cut-off wheel and buoyancy body.
4, the elevating mechanism of power tongs master pincers according to claim 3, it is characterized in that: described trundle comprises the gear pin that an end is connected with cut-off wheel, the other end suit outer sleeve of gear pin, outer sleeve is connected with buoyancy body, fixed muffle is set in the gear pin, be provided with the pull bar that is connected with outer sleeve in the fixed muffle, the spacer pin of pull bar bottom contacts with the spring housing of fixed muffle below, and a spring is contained in fixed muffle and the spring housing.
5, the elevating mechanism of power tongs master pincers according to claim 4, it is characterized in that: pull bar is connected with outer sleeve by mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201852051U CN201250623Y (en) | 2008-08-21 | 2008-08-21 | Elevating mechanism of main tong of power tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201852051U CN201250623Y (en) | 2008-08-21 | 2008-08-21 | Elevating mechanism of main tong of power tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250623Y true CN201250623Y (en) | 2009-06-03 |
Family
ID=40746297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201852051U Expired - Lifetime CN201250623Y (en) | 2008-08-21 | 2008-08-21 | Elevating mechanism of main tong of power tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250623Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405307A (en) * | 2014-11-14 | 2015-03-11 | 如东前进石油机械制造有限公司 | Inflatable dual-purpose tong floating body lifting device |
| CN116586939A (en) * | 2023-06-26 | 2023-08-15 | 江苏如东联丰石油机械有限公司 | Novel top driving force pincers |
-
2008
- 2008-08-21 CN CNU2008201852051U patent/CN201250623Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405307A (en) * | 2014-11-14 | 2015-03-11 | 如东前进石油机械制造有限公司 | Inflatable dual-purpose tong floating body lifting device |
| CN116586939A (en) * | 2023-06-26 | 2023-08-15 | 江苏如东联丰石油机械有限公司 | Novel top driving force pincers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
|
| CX01 | Expiry of patent term |