CN201908590U - Safety protection device for open type hydraulic power tongs - Google Patents
Safety protection device for open type hydraulic power tongs Download PDFInfo
- Publication number
- CN201908590U CN201908590U CN2011200250723U CN201120025072U CN201908590U CN 201908590 U CN201908590 U CN 201908590U CN 2011200250723 U CN2011200250723 U CN 2011200250723U CN 201120025072 U CN201120025072 U CN 201120025072U CN 201908590 U CN201908590 U CN 201908590U
- Authority
- CN
- China
- Prior art keywords
- cam
- safety
- hydraulic
- safety door
- link
- 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
Abstract
The utility model relates to a safety protection device for a pair of open type hydraulic power tongs, which comprises a safety door, a cam and link mechanism, a body of the power tongs, a protective cover, an ejector rod type two-bit three-way reversing valve, a fixed seat, a hydraulic motor, a manual reversing valve, a hydraulic control one-way valve and a hydraulic pipeline, wherein the cam and link mechanism is connected with the safety door and the ejector rod type two-bit three-way reversing valve, and the ejector rod type two-bit three-way reversing valve is connected with the hydraulic pipeline through the hydraulic control one-way valve. The cam and link mechanism comprises a link, a cam, a cam fixed shaft and a link pin, wherein one end of the link is connected with the safety door through the link pin, one end of the link is connected with the cam, the cam can rotate around the cam fixed shaft, and an ejector rod on the ejector rod type two-bit three-way reversing valve is ejected on the outer curved surface of the cam and can move axially along with the rotation of the cam. The safety door comprises a door body of the safety door, a bolt shaft, a bolt jacking rod, a return spring, a screw, a pin shaft, a pin and a tension spring. The safety protection device has the benefits of significantly improving the safety performance of the pair of the open type hydraulic power tongs and protecting personnel safety of an operator more reliably.
Description
Technical field
The utility model relates to the safe automatic safety device of the security protection facility, particularly open hydraulic power tongs of oil drilling and well workover usefulness Power Tong.It belongs to oilfield machinery security protection technology field.
Background technology
Because security needs all requires open-type Power Tong configuration safety device on the oil field.The open-type Power Tong has passed through repeatedly and has improved at present, existing multiple safety protection mechanism, as the patent No. is " a kind of automatic safety door protection device for open hydraulic power tongs " patent of 200920007413.7, and it is to be provided with the post rod type two position three way directional control valve on safety door or Power Tong caliper; Between hand-operated direction valve and hydraulic motor, be provided with the double hydraulic control one way valve; The commutation that opens or closes control post rod type two position three way directional control valve of safety door.Use this device also having following problem in reality: 1, safety door does not have door latch apparatus, can not guarantee that in actual use safety door closes; 2, the post rod type two position three way directional control valve is arranged on safety door or the Power Tong caliper, is arranged on the binding clip opening part, damages easily; 3, the post rod type two position three way directional control valve is arranged on safety door or the Power Tong caliper, the valve commutation is directly controlled by safety door, not by leverage, need very big power could realize commutation, inapplicable on the open-type Power Tong of small-sized model, and the component at commutation position also damage easily." a kind of open hydraulic power tongs safety-door device " patent of the patent No. 200920146424.3 and for example, there are connecting rod one end and door main body hinged, the other end links to each other with the eccentric shaft of remote-controlled valve, eccentric shaft, armshaft, Control Shaft are fixed in one, there is a notch alignment spool at the Control Shaft middle part, door main body can drive the Control Shaft rotation by connecting rod when door drew back, spool is opened, remote control circuit is linked up, door main body can drive the Control Shaft rotation by connecting rod when door was closed, the spool return, remote control circuit is cut off.Also there are some problems in this device: 1. also do not have door latch apparatus, can not guarantee that safety door shuts; 2, it is the overflow of control overflow valve, can not Power Tong be stopped operating, and still is not very safe.
Summary of the invention
Of the present utility modelly overcome the deficiencies in the prior art part; a kind of open hydraulic power tongs safety guard is provided, has realized that safety door does not shut, hydraulic circuit is obstructed; hydraulic power tongs can not turn round; perhaps safety door one is opened, and cuts off hydraulic circuit automatically, and hydraulic power tongs shuts down automatically; increased the bolt axle simultaneously; guarantee that safety door is closed and put in place, can not open voluntarily, increased security reliability.
Technical solutions of the utility model are made up of safety door, cam link mechanism, Power Tong caliper, protective cover, post rod type two position three way directional control valve, holder, hydraulic motor, hand-operated direction valve, hydraulic control one-way valve and hydraulic line etc., be connected with hydraulic line between cam link mechanism attachment security door and the post rod type two position three way directional control valve, post rod type two position three way directional control valve and hydraulic control one-way valve.Cam link mechanism is by connecting rod, cam, cam fixed axis and link pin are formed, connecting rod links to each other with safety door by link pin one end, one end links to each other with cam, cam is fixed on the Power Tong caliper by the cam fixed axis, cam can rotate around the cam fixed axis, push rod on the post rod type two position three way directional control valve withstands on the positive camber of cam, when safety door opens or closes, connecting rod drives cam and rotates around the cam fixed axis, the push rod that drives on the post rod type two position three way directional control valve moves axially, make the commutation of post rod type two position three way directional control valve, open or close, make the unimpeded or cut-out of hydraulic circuit by hydraulic line control hydraulic control one-way valve.Safety door is made up of safety every body, bolt axle, bolt push rod, handgrip, back-moving spring, screw, bearing pin, pin and extension spring etc., handgrip is fixed on safe every body by bearing pin, one end of handgrip is connected with pin with the bolt push rod, bolt push rod one end has back-moving spring, one end links to each other with the bolt axle, on safety every body, bolt axle one end is inserted in the lockhole of setting on the Power Tong caliper back-moving spring by screw.When safety door is opened, need manually pull handgrip, jack-up bolt push rod and bolt axle, the bolt axle breaks away from from the lockhole that the Power Tong caliper is set, and safety door just can be opened.When safety door is closed, extension spring pulling safety door is closed and is put in place, the D face of bolt shaft end is the inclined-plane, when contacting with the Power Tong caliper, can promote to move on bolt axle and the bolt push rod, make the bolt axle slide into the lockhole of setting on the Power Tong caliper, back-moving spring drive bolt axle and bolt push rod are descending, the bolt axle puts in place, and safety door is fastened.It is characterized in that: cam link mechanism is made up of connecting rod, cam, cam fixed axis and link pin, connecting rod links to each other with safety door by link pin one end, one end links to each other with cam, cam can rotate around the cam fixed axis, push rod on the post rod type two position three way directional control valve withstands on the positive camber of cam, can move axially with cam rotation.Safety door is made up of safety every body, bolt axle, bolt push rod, handgrip, back-moving spring, screw, bearing pin, pin and extension spring.
The beneficial effects of the utility model are that the security performance of open hydraulic power tongs is significantly improved, and protect operator's personal safety more reliably.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a vertical view of the present utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
Fig. 5 is the C-C sectional view of Fig. 2.
Among the figure: 1. safety door, 2. cam link mechanism, 3. Power Tong caliper, 4. protective cover, 5. post rod type two position three way directional control valve, 6. holder, 7. hydraulic motor, 8. hydraulic control one-way valve, 9. hand-operated direction valve, 10. hydraulic line, 11. connecting rods, 12. link pins, 13. the cam fixed axis, 14. cams, 15. bolt axles, 16. bolt push rods, 17. safe every body, 18. handgrips, 19. pins, 20. back-moving springs, 21. screw, 22. extension springs, door-hinge on 23., 24. link pins; 25. following door-hinge, 26. bearing pins.
The specific embodiment
As shown in Figure 1 and Figure 2, technical solutions of the utility model are made up of safety door 1, cam link mechanism 2, Power Tong caliper 3, protective cover 4, post rod type two position three way directional control valve 5, holder 6, hydraulic motor 7, hydraulic control one-way valve 8, hand-operated direction valve 9 and hydraulic line 10 etc., be connected with hydraulic line 10 between cam link mechanism 2 attachment security doors 1 and the post rod type two position three way directional control valve 5, post rod type two position three way directional control valve 5 and hydraulic control one-way valve 8.
As Fig. 1, Fig. 2, shown in Figure 3, cam link mechanism 2 is by connecting rod 11, cam 14, cam fixed axis 13 and link pin 12 are formed, connecting rod 11 1 ends link to each other with safety door 1 by link pin 24, one end links to each other with cam 14 by link pin 12, cam 14 is fixed on the Power Tong caliper 3 by cam fixed axis 13, cam 14 can rotate around cam fixed axis 13, push rod on the post rod type two position three way directional control valve 5 withstands on the positive camber of cam 14, when safety door 1 opens or closes, connecting rod 11 drives cam 14 and rotates around cam fixed axis 13, the push rod that drives on the post rod type two position three way directional control valve 5 moves axially, make 5 commutations of post rod type two position three way directional control valve, open or close by hydraulic line 10 control hydraulic control one-way valves 8, make the unimpeded or cut-out of hydraulic circuit.
As Fig. 4, shown in Figure 5, safety door 1 is made up of safety every body 17, bolt axle 15, bolt push rod 16, handgrip 18, back-moving spring 20, screw 21, bearing pin 26, pin 19 and extension spring 22 etc., handgrip 18 is fixed on safe every body 17 by bearing pin 26, one end of handgrip 18 is connected with bolt push rod 16 usefulness pins 19, bolt push rod 16 1 ends have back-moving spring 20, one end links to each other with bolt axle 15, back-moving spring 20 is fixed on safe every body 17 by screw 21, and bolt axle 15 1 ends are inserted in the lockhole of setting on the Power Tong caliper 3.When safety door 1 is opened, need manually pull handgrip 18, jack-up bolt push rod 16 and bolt axle 15, bolt axle 15 breaks away from from the lockhole that Power Tong caliper 3 is set, and safety door 1 just can be opened.When safety door 1 is closed, extension spring 22 pulling safety doors 1 are closed and are put in place, the D face of bolt axle 15 ends is inclined-planes, when contacting with Power Tong caliper 3, can promote to move on bolt axle 15 and the bolt push rod 16, make bolt axle 15 slide into the lockhole of setting on the Power Tong caliper 3, back-moving spring 20 drive bolt axles 15 and bolt push rod 16 are descending, bolt axle 15 puts in place, and safety door 1 is fastened.
Claims (2)
1. open hydraulic power tongs safety guard; by safety door; cam link mechanism; the Power Tong caliper; protective cover; the post rod type two position three way directional control valve; holder; hydraulic motor; hand-operated direction valve; hydraulic control one-way valve and hydraulic line are formed; cam link mechanism attachment security door and post rod type two position three way directional control valve; be connected with hydraulic line between post rod type two position three way directional control valve and the hydraulic control one-way valve; it is characterized in that: cam link mechanism is by connecting rod; cam; cam fixed axis and link pin are formed; connecting rod links to each other with safety door by link pin one end; one end links to each other with cam; cam can rotate around the cam fixed axis; push rod on the post rod type two position three way directional control valve withstands on the positive camber of cam, can move axially with cam rotation.
2. a kind of open hydraulic power tongs safety guard according to claim 1 is characterized in that: safety door is made up of safety every body, bolt axle, bolt push rod, handgrip, back-moving spring, screw, bearing pin, pin and extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200250723U CN201908590U (en) | 2011-01-18 | 2011-01-18 | Safety protection device for open type hydraulic power tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200250723U CN201908590U (en) | 2011-01-18 | 2011-01-18 | Safety protection device for open type hydraulic power tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908590U true CN201908590U (en) | 2011-07-27 |
Family
ID=44300793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200250723U Expired - Lifetime CN201908590U (en) | 2011-01-18 | 2011-01-18 | Safety protection device for open type hydraulic power tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206501A (en) * | 2019-06-05 | 2019-09-06 | 东营市元捷石油机械有限公司 | Hydraulic locking apparatus |
| CN110424905A (en) * | 2019-07-24 | 2019-11-08 | 江苏如东联丰石油机械有限公司 | A kind of Novel hydraulic elevator of band folding signal designation |
-
2011
- 2011-01-18 CN CN2011200250723U patent/CN201908590U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206501A (en) * | 2019-06-05 | 2019-09-06 | 东营市元捷石油机械有限公司 | Hydraulic locking apparatus |
| CN110424905A (en) * | 2019-07-24 | 2019-11-08 | 江苏如东联丰石油机械有限公司 | A kind of Novel hydraulic elevator of band folding signal designation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201908590U (en) | Safety protection device for open type hydraulic power tongs | |
| CN203488125U (en) | Gating safety protection device of open-type hydraulic power tongs | |
| CN104358239B (en) | Hydraulic flat is opened rotatable protection airtight and to be held concurrently Flood gate | |
| CN204920850U (en) | Two gate safety arrangement that open door of opening type hydraulic power pincers | |
| CN102926599B (en) | A kind of marine tool cabinet automatic locking structure | |
| CN205259976U (en) | Can long -range liquid accuse opening type hydraulic power pincers | |
| CN209585946U (en) | People's air defense door latch apparatus | |
| CN100445512C (en) | Strongbox having automatic bolt control device | |
| CN210317207U (en) | Safety protection device for opening door of hydraulic power tongs | |
| CN201367874Y (en) | Automatic safety door protection device of opening-type hydraulic power tong | |
| CN101818625A (en) | Automatic safety door protection device for open hydraulic power tongs | |
| CN205400619U (en) | From lock elevator | |
| CN201747303U (en) | Safe and automatic protection and locking system for hydraulic power tong | |
| CN201367873Y (en) | Automatic hydraulic safety protection circuit of opening-type hydraulic power tong | |
| CN210509081U (en) | Door control protection device of open type hydraulic power tongs | |
| CN209469790U (en) | A kind of pressurized tank mechanism for opening/closing | |
| CN209398913U (en) | A kind of valve locking device | |
| CN202832304U (en) | Power tong automatic door interlocking mechanism | |
| CN2555383Y (en) | Side-opening elevator | |
| CN211820914U (en) | Mechanical cut-off self-closing valve | |
| CN209228217U (en) | A kind of lock body structure | |
| CN217270079U (en) | Double-door single-control safety protection device of open type hydraulic power tongs | |
| CN102080509A (en) | Opened type hydraulic dynamic clamp safety door interlocking protecting device | |
| CN104165550A (en) | Defensive grappling device | |
| CN110805727A (en) | Safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110727 |
|
| CX01 | Expiry of patent term |