CN201367873Y - Automatic hydraulic safety protection circuit of opening-type hydraulic power tong - Google Patents
Automatic hydraulic safety protection circuit of opening-type hydraulic power tong Download PDFInfo
- Publication number
- CN201367873Y CN201367873Y CNU2009200074122U CN200920007412U CN201367873Y CN 201367873 Y CN201367873 Y CN 201367873Y CN U2009200074122 U CNU2009200074122 U CN U2009200074122U CN 200920007412 U CN200920007412 U CN 200920007412U CN 201367873 Y CN201367873 Y CN 201367873Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- power tong
- valve
- type
- opening
- 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
Links
Images
Abstract
The utility model discloses an automatic hydraulic safety protection circuit of an opening-type hydraulic power tong, which consists of a safety door, a power tong body, a hydraulic motor, a hand-operated directional valve, a lifter-type two-position three-way directional control valve, a dual-hydraulic control one-way valve and the like. As for the existing opening-type hydraulic power tong, only mechanical linkage protection and pneumatic linkage protection are designed between the safety door and the power tong, without hydraulic linkage protection. As for the automatic hydraulic safety protection circuit of the opening-type hydraulic power tong of the utility model, the hand-operated directional valve and the hydraulic motor are connected to form the working circuit of the hydraulic power tong; and the lifter-type two-position three-way directional control valve and the dual-hydraulic control one-way valve are connected to form a hydraulic control circuit. The utility model has the beneficial effects of adding the control circuit in the working circuit of the opening-type hydraulic power tong, having simple structure and remarkable economic and social benefits, and greatly improving the safety.
Description
Technical field
The utility model relates to the automatic hydraulic safe protection of the security protection, particularly open hydraulic power tongs of oil drilling and well workover usefulness Power Tong.It belongs to oilfield machinery resist technology field.
Background technology
At present, oil drilling and well workover Power Tong are the common equipments that unloads drilling rod, sleeve pipe and oil pipe operation on the oil field, be divided into open-type, closed type and survivor of a murder attempt's type by the binding clip pattern, because binding clip is an opening, when operation each time, can withdraw well head easily, so the open-type Power Tong also is a kind of of the most normal employing.Simultaneously also because be hatch frame, to using and keeping in repair and brought very big potential safety hazard.Also reduce the intensity of Power Tong itself, can produce shedding deformation during work.The binding clip of open-type Power Tong is an opening; when work, rotate at high speed; the operator can make health or other object touch opening in maloperation or when careless; make operator's health injury occur easily and also damaged Power Tong itself; therefore the open-type Power Tong that uses at the scene requires all safety guard---safety door to be arranged, and prevents that operator's health or other object from entering the Power Tong opening.Can accomplish that preferably safety door does not shut, Power Tong is forbidden running, also can strengthen the intensity of opening simultaneously, reduces shedding deformation.The open-type Power Tong that uses has at the scene passed through repeatedly and has improved at present; the general safety door safety guard that adopts only is to prevent that operator's health and other object from entering opening, the problem that Power Tong can not turn round when fundamentally not solving safety door and not shutting.The employing that also has automatic protection, be 200520124754.4 linked protection formula hydraulic power tongs as the patent No., be the mechanical type linked protection, protective door often clashes into, and damages easily, the fault rate of brake line is also high.The drill pipe tong safety door of the patent No. 200420109240.7 and for example, what it adopted is the interlock of protective door and air clutch, be pneumatic linked protection, can only be applied on the pneumatic or liquid of air clutch, the Power Tong that gas is united driving, can not be applied in hydraulic power tongs.
Summary of the invention
In order to solve present the deficiencies in the prior art, realize that safety door does not shut, the hydraulic loop is obstructed; Power Tong can not turn round; simultaneously also can reinforced cut-out intensity, reduce shedding deformation, the utility model provides a kind of automatic hydraulic safe protection loop for open hydraulic power tongs.
Technical solutions of the utility model are made up of safety door, Power Tong caliper, hydraulic motor, hand-operated direction valve, post rod type two position three way directional control valve, double hydraulic control one way valve etc.Hand-operated direction valve and hydraulic motor constitute hydraulic power tongs work loop, and the post rod type two position three way directional control valve links to each other with the double hydraulic control one way valve and constitutes hydraulic control circuit.The post rod type two position three way directional control valve is installed on safety door or the Power Tong caliper, the double hydraulic control one way valve is set up between hand-operated direction valve and the hydraulic motor, by the switching of post rod type two position three way directional control valve control double hydraulic control one way valve, thus the work loop between control hand-operated direction valve and the hydraulic motor.When safety door is closed, control oil process post rod type two position three way directional control valve to the double hydraulic control one way valve, the double hydraulic control one-way valve opens, the loop of working between hand-operated direction valve and the hydraulic motor is unimpeded, handle hand-operated direction valve, hydraulic motor just can turn round the Power Tong operate as normal; When safety door is not closed, control oil without the post rod type two position three way directional control valve to the double hydraulic control one way valve, direct oil sump tank, the double hydraulic control one way valve is closed, the loop is obstructed between hand-operated direction valve and the hydraulic motor, hydraulic motor does not rotate.Realized that safety door is not related to, the work loop is obstructed, and Power Tong can not turn round.It is characterized in that: hand-operated direction valve links to each other with hydraulic motor and constitutes hydraulic power tongs work loop; The post rod type two position three way directional control valve links to each other with the double hydraulic control one way valve and constitutes hydraulic control circuit.
The beneficial effects of the utility model have provided a kind of automatic hydraulic safe protection loop for open hydraulic power tongs; in the work loop of open hydraulic power tongs, increase a control loop, simple in structure; safety is greatly improved, economic benefit and obvious social benefit.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a hydraulic circuit diagram of the present utility model.
Fig. 2 is the hydraulic circuit diagram when safety door is closed.
Fig. 3 closes when safety door, the hydraulic circuit diagram when handling hand-operated direction valve.
Fig. 4 is a profile schematic diagram of the present utility model (front view).
Fig. 5 is a profile schematic diagram of the present utility model (vertical view).
Among the figure: 1. hand-operated direction valve, 2. hydraulic motor, 3. double hydraulic control one way valve, 4. post rod type two position three way directional control valve, 5. safety door, 6. Power Tong caliper, 7. hydraulic line.
The specific embodiment
In Fig. 1, the Power Tong automatic hydraulic safe protection loop is made up of work loop and control loop, and hand-operated direction valve 1, hydraulic motor 2 constitute the work loop; Post rod type two position three way directional control valve 4 and double hydraulic control one way valve 3 constitute control loop.When safety door 5 did not close, the contact S on the post rod type two position three way directional control valve 4 did not run into the contact of setting, control oil from hydraulic fluid port P1 to hydraulic fluid port Y directly to oil return inlet T, double hydraulic control one way valve 3 is closed, the work loop is obstructed.
In Fig. 2, when safety door 5 is closed, contact S on the post rod type two position three way directional control valve 4 runs into the contact that is set on safety door 5 or the Power Tong caliper 6, the spool that promotes post rod type two position three way directional control valve 4 moves, control oil from hydraulic fluid port P1 to hydraulic fluid port X again to X1, open double hydraulic control one way valve 3, make on the double hydraulic control one way valve 3 hydraulic fluid port A1 unimpeded to B2 to A2, hydraulic fluid port B1, hand-operated direction valve 1 is unobstructed to hydraulic motor 2 working oil path.
In Fig. 3, when safety door 5 is closed, handle hand-operated direction valve 1, pressure oil from hydraulic fluid port P through hydraulic fluid port A to hydraulic fluid port B again to oil return inlet T, or through hydraulic fluid port B to hydraulic fluid port A to oil return inlet T, the formation loop;
In Fig. 4,5 illustrated embodiments, safety door 5 is installed on the Power Tong caliper 6, post rod type two position three way directional control valve 4 is installed on safety door 5 or the Power Tong caliper 6, and double hydraulic control one way valve 3 is built up between hand-operated direction valve 1 and the hydraulic motor 2, links to each other by hydraulic line 7 each other.
Claims (1)
1. automatic hydraulic safe protection loop for open hydraulic power tongs, be made up of safety door, hand-operated direction valve, hydraulic motor, double hydraulic control one way valve and post rod type two position three way directional control valve etc., it is characterized in that: hand-operated direction valve links to each other with hydraulic motor and constitutes hydraulic power tongs work loop; The post rod type two position three way directional control valve links to each other with the double hydraulic control one way valve and constitutes hydraulic control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200074122U CN201367873Y (en) | 2009-02-27 | 2009-02-27 | Automatic hydraulic safety protection circuit of opening-type hydraulic power tong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200074122U CN201367873Y (en) | 2009-02-27 | 2009-02-27 | Automatic hydraulic safety protection circuit of opening-type hydraulic power tong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201367873Y true CN201367873Y (en) | 2009-12-23 |
Family
ID=41486767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200074122U Expired - Fee Related CN201367873Y (en) | 2009-02-27 | 2009-02-27 | Automatic hydraulic safety protection circuit of opening-type hydraulic power tong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201367873Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422023A (en) * | 2015-12-08 | 2016-03-23 | 盐城特达钻采设备有限公司 | Opening type hydraulic power tongs capable of being remotely and hydraulically controlled |
-
2009
- 2009-02-27 CN CNU2009200074122U patent/CN201367873Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422023A (en) * | 2015-12-08 | 2016-03-23 | 盐城特达钻采设备有限公司 | Opening type hydraulic power tongs capable of being remotely and hydraulically controlled |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202827716U (en) | Steering electro-hydraulic control system for remote-control loader | |
| CN205298092U (en) | Automatically controlled hydraulic actuator of emergent shutoff type | |
| CN100520982C (en) | Waterpower driving mechanism for reactor safety rod | |
| CN201367873Y (en) | Automatic hydraulic safety protection circuit of opening-type hydraulic power tong | |
| CN205117870U (en) | Other valves of ladle turret jar | |
| CN205298110U (en) | Hydraulic pressure rock drilling machine's self -adaptation valves | |
| CN204922046U (en) | Guide's formula high temperature stop valve | |
| CN102352734A (en) | Ground blowout preventer control device with function of preventing lifting breakage of drill column | |
| CN104358239B (en) | Hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate | |
| CN203488125U (en) | Gating safety protection device of open-type hydraulic power tongs | |
| CN201367874Y (en) | Automatic safety door protection device of opening-type hydraulic power tong | |
| CN209011775U (en) | The trigger mechanism of hydraulic elevator system | |
| CN101818625A (en) | Automatic safety door protection device for open hydraulic power tongs | |
| CN101818624A (en) | Automatic hydraulic safe protection loop for open hydraulic power tongs | |
| CN104314923B (en) | A kind of relief valve return liquid system and integrated relief valve return liquid valve block | |
| CN204311414U (en) | Flat open rotatable protection airtight and to hold concurrently Flood gate | |
| CN204920850U (en) | Two gate safety arrangement that open door of opening type hydraulic power pincers | |
| CN202832304U (en) | Power tong automatic door interlocking mechanism | |
| CN214661151U (en) | Control system for hydraulic elevator | |
| CN201908590U (en) | Safety protection device for open type hydraulic power tongs | |
| CN210317207U (en) | Safety protection device for opening door of hydraulic power tongs | |
| CN204941382U (en) | Valve elevator Automated condtrol mechanism | |
| CN202302012U (en) | Spring shock absorption pre-resetting angle type hydraulic fast switching valve | |
| CN217582207U (en) | Automatic pneumatic locking interlocking device and system for non-pressure air door | |
| CN206280548U (en) | A kind of lift check of dual drive quick closedown and cut-off combination valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |