CN201953327U - Power tongs with low-gear buckling automatic unloading function - Google Patents
Power tongs with low-gear buckling automatic unloading function Download PDFInfo
- Publication number
- CN201953327U CN201953327U CN2011200677659U CN201120067765U CN201953327U CN 201953327 U CN201953327 U CN 201953327U CN 2011200677659 U CN2011200677659 U CN 2011200677659U CN 201120067765 U CN201120067765 U CN 201120067765U CN 201953327 U CN201953327 U CN 201953327U
- Authority
- CN
- China
- Prior art keywords
- low
- power tongs
- valve
- drilling
- flame proof
- 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
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a pair of power tongs with low-gear buckling automatic unloading function. The pair of power tongs comprises a main tong, a back tong and a hydraulic motor, wherein when the hydraulic motor is connected with a low-gear buckling automatic unloading capable of automatically unloading when the main tong performs low-gear buckling. The pair of power tongs has a reasonable structure; when the output torque reaches a set value, the pair of power tongs when performing low-gear buckling can automatically unload, so the torque value of a screwed drilling stem joint can be controlled, a screwing torque is not too high or too low, a drilling stem joint box is protected, the normal operation of drilling operation is guaranteed, the labor intensity of drilling workers is reduced, and drilling accidents are prevented from occurring.
Description
Technical field
The utility model relates to a kind of petroleum gas drilling well power tongs.
Background technology
Existing petroleum gas drilling well power tongs, during the operation of the low-grade upward button of main pincers work, torque value can not effectively be controlled, and influences the operate as normal of drilling well, and labor strength is big.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the power tongs of button automatic deloading function on the tool low grade of good working effect.
Technical solution of the present utility model is:
The power tongs of button automatic deloading function comprises main pincers, back-up tong, hydraulic motor on a kind of tool low grade, it is characterized in that: hydraulic motor and main pincers are done low-gradely to detain automatic relief arrangement on can the low grade of automatic deloading when going up button and be connected.
The button automatic relief arrangement comprises high voltage interface, the oil return interface that is connected with hand-operated direction valve on the low grade, and hand-operated direction valve is connected with the flame proof electromagnetic relief valve by the oil motor valve plate, and the flame proof electromagnetic relief valve is connected with the flame proof electro connecting pressure gauge by Pneumatic reversal valve.
The utility model is rational in infrastructure; when power tongs is detained on low grade; when the moment of torsion of output reaches setting value; energy automatic deloading; make the torque value of the tool joint of tightening controlled, unlikely joint screw-down torque is excessive and too small, has protected the tool joint box to guarantee normally carrying out of drillng operation; alleviate driller's labour intensity, prevented the generation of drilling failure.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the low and middle-grade structural representations of going up the button automatic relief arrangement of Fig. 1.
The specific embodiment
The power tongs of button automatic deloading function on a kind of tool low grade, comprise main pincers 1, back-up tong 2, suspension rod 3, hydraulic motor 5, gear 6, gas control operating desk 7, hydraulic motor 5 and main pincers are done low-gradely to detain automatic relief arrangement 4 on can the low grade of automatic deloading when going up button and be connected.
The button automatic relief arrangement comprises high voltage interface 8, the oil return interface 9 that is connected with hand-operated direction valve 10 on the low grade, hand-operated direction valve 10 is connected with flame proof electromagnetic relief valve 11 by oil motor valve plate 12, and the flame proof electromagnetic relief valve is connected with flame proof electro connecting pressure gauge 14 by Pneumatic reversal valve 13.
Also has pressure-torque meter 15 among the figure.
Operating principle of the present utility model is:
High voltage interface, the oil return interface is with after hydraulic power source is connected, the primer fluid potential source, when the rotating speed handle on the gas control operating desk changes to " low grade " position, Pneumatic reversal valve 13 is failure to actuate, be that oil circuit communicates with the flame proof electro connecting pressure gauge, the handle of hand-operated direction valve is operated downwards, the main pincers of power tongs are made low-grade upward button and rotation and output torque, when force value continuous rising in liquid road reaches the setting value of flame proof electro connecting pressure gauge, the electromagnet action and the unloading of flame proof electromagnetic relief valve, the output torque and the rotating speed of main pincers disappear immediately, reach the low-grade purpose that goes up automatic deloading when detaining.When the rotating speed handle on the gas control operating desk changes to " top grade " position, the Pneumatic reversal valve action, be that oil circuit and flame proof electro connecting pressure gauge cut off, the handle of hand-operated direction valve is operated downwards, and the main pincers of power tongs are made high-grade upward button and rotation and output torque, at this moment, the flame proof electro connecting pressure gauge does not have pressure and lost efficacy, the flame proof electromagnetic relief valve plays common overflow valve, and pressurize liquid stream played safety return circuit when liquid road pressure reached the setting of flame proof electromagnetic relief valve.
Claims (2)
1. the power tongs of button automatic deloading function on the tool low grade comprises main pincers, back-up tong, hydraulic motor, it is characterized in that: hydraulic motor and main pincers are done low-gradely to detain automatic relief arrangement on can the low grade of automatic deloading when going up button and be connected.
2. the power tongs of button automatic deloading function on the tool low grade according to claim 1, it is characterized in that: the button automatic relief arrangement comprises high voltage interface, the oil return interface that is connected with hand-operated direction valve on the low grade, hand-operated direction valve is connected with the flame proof electromagnetic relief valve by the oil motor valve plate, and the flame proof electromagnetic relief valve is connected with the flame proof electro connecting pressure gauge by Pneumatic reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200677659U CN201953327U (en) | 2011-03-15 | 2011-03-15 | Power tongs with low-gear buckling automatic unloading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200677659U CN201953327U (en) | 2011-03-15 | 2011-03-15 | Power tongs with low-gear buckling automatic unloading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953327U true CN201953327U (en) | 2011-08-31 |
Family
ID=44497444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200677659U Expired - Lifetime CN201953327U (en) | 2011-03-15 | 2011-03-15 | Power tongs with low-gear buckling automatic unloading function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370338A (en) * | 2016-11-03 | 2017-02-01 | 江苏如石机械有限公司 | Drill rod power tong intelligent torque meter |
| CN108678691A (en) * | 2018-05-23 | 2018-10-19 | 张昌恒 | Controllable lossless upper clasp forceps and its application method |
-
2011
- 2011-03-15 CN CN2011200677659U patent/CN201953327U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370338A (en) * | 2016-11-03 | 2017-02-01 | 江苏如石机械有限公司 | Drill rod power tong intelligent torque meter |
| CN108678691A (en) * | 2018-05-23 | 2018-10-19 | 张昌恒 | Controllable lossless upper clasp forceps and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203308413U (en) | Large-diameter drilling and coring device for soft-and-hard interbedding rock masses | |
| CN103147711B (en) | A kind of milling tool for oil well, well and using method thereof | |
| CN202970677U (en) | Long spiral drilling machine | |
| CN201953327U (en) | Power tongs with low-gear buckling automatic unloading function | |
| CN104695878A (en) | Remote control type hydraulic clamp device and control method | |
| CN201874918U (en) | Composite hydraulic cylinder and electro-hydraulic proportional lifting system thereof | |
| CN203292631U (en) | Tapping power head of servo motor | |
| CN104196782A (en) | Serially-connected composite throttling speed regulating loop for lifter | |
| CN203614034U (en) | Crawler-type hydraulic cutting drill rig with intelligent braking device | |
| CN202937181U (en) | Hydraulic oil-way system of anchor rod drilling machine | |
| CN103643659A (en) | Gear transmission starting-stopping system of balance gate | |
| CN202072420U (en) | Automatic tensioning hydraulic system for winding of rotary drilling rig | |
| CN201693514U (en) | Tool used for mounting piston of slurry pump | |
| CN204386451U (en) | A kind of multi-functional full-automatic spiral drilling machine | |
| CN106678350A (en) | Automobile gear shifting structure | |
| CN202225129U (en) | Tool special for sampling of transformer body | |
| CN205089710U (en) | Balancing unit of environmental sanitation special car suction nozzle | |
| CN209976930U (en) | Pushing pressure setting system based on drill jumbo | |
| CN201842853U (en) | Rotary driving device of tapping machine of blast furnace | |
| CN204053966U (en) | Torsion-type tool for installing and dismounting petroleum casing pipe screw protector | |
| CN203834430U (en) | Balancing gate gear transmission opening and closing system | |
| CN202926286U (en) | Well mouth safety valve switching device | |
| CN202273612U (en) | Back-off device of sucker rod | |
| CN204113127U (en) | The side shifter of unit head | |
| CN202742112U (en) | Automatic connection device for milling cutter |
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 | ||
| 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 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |