CN105064933A - Closed plier combination pliers - Google Patents
Closed plier combination pliers Download PDFInfo
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- CN105064933A CN105064933A CN201510505361.6A CN201510505361A CN105064933A CN 105064933 A CN105064933 A CN 105064933A CN 201510505361 A CN201510505361 A CN 201510505361A CN 105064933 A CN105064933 A CN 105064933A
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- cylinder assembly
- pincers
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- 230000000712 assembly Effects 0.000 claims abstract description 18
- 238000000429 assembly Methods 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 56
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 150000002843 nonmetals Chemical class 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses closed plier combination pliers which comprise main pliers, back pliers, a front guide rod and a back support seat, wherein the front guide rod and the back support seat are used for connecting the main pliers with the back pliers. The main pliers comprise multiway valve assemblies, a first shell, a rotation cylinder assembly, a big gear wheel and multiple power shaft assemblies; the back pliers comprise a second shell, second hydraulic cylinder supports and multiple second hydraulic cylinder assemblies, and a piston rod of each second hydraulic cylinder assembly is provided with a second circular-arc-shaped tooth plate; each multiway valve assembly is connected with an external hydraulic system, connected with a corresponding hydraulic motor with a reducer through a rubber pipe and connected with the rotation cylinder assembly through a first hose pipe, the rotation cylinder assembly is connected with a plurality of first hydraulic cylinder assemblies through a plurality of sealing oil channels, and the multiway valve assemblies are connected with the second hydraulic cylinder assemblies through second hose pipes. Accordingly, the traceless or micro-damage effect of an oil pipe body can be achieved, and the use safety is improved.
Description
Technical field
The present invention relates to technical field of petroleum machinery, particularly relate to one and to remain silent pincers combination plier.
Background technology
As everyone knows, well head automation, when well workover, drillng operation, is progressively carried out in oil field, to remain silent Qian Shang oil discharge pipe if adopted, one can realize single elevator operation, and it two adopts pincers of remaining silent can save artificial push-and-pull pliers back and forth, more than can reduce the labour intensity of workman, improve safety.In addition, oil field is in wellbore construction, sometimes according to the supporting needs of new technology new equipment, require that pliers can only stick of tool bar body, cannot stick of tool knock-off joint, pliers block teeth are to after the occlusion of drilling rod body, can only micro-damage, traditional rotary tong be two frontal plate to folder, every frontal plate only fills two block teeth, containment area is too little, forms very dark bite mark after occlusion.For gas well, particularly high sulfur Gas Fields, oil pipe, to overlap effective be anti-corrosion pipe, body is softer, during pliers clamping body, requires pliers to body without dental impression, pincers of remaining silent of the prior art are general all adopts planet pawl clamp system, point cantact between block teeth and body, dark especially to the bite mark of body, the even easily flat body of folder, after surface has the body of dental impression to go into the well, acid solution enters from dental impression gap, sour bad oil pipe, causes body to hang well accident, gas leakage accidents; In addition, when pincers of remaining silent of the prior art are detained in realization and shackle action exchanges, need to take cover plate apart, take out planet pawl, then turn over turnback, reinstall, the too tired lock of such action, operating efficiency is lower.
Therefore, be necessary to provide a kind of pincers combination plier of remaining silent solved the problems of the technologies described above.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of pincers combination plier of remaining silent reducing oil pipe, sleeve pipe, this bulk damage of drilling rod.
For achieving the above object, the technical solution used in the present invention is: one is remained silent pincers combination plier, comprise: main pincers, back-up tong and for connecting guide rod and rear support before main pincers and back-up tong, described front guide rod is provided with front guide rod spring, described rear support is provided with back-guiding rod spring, described main pincers comprise: banked direction control valves assembly, first housing and the rotary cylinder assembly be arranged in the first housing, gear wheel and several line shaft assembly, described first housing comprises the first shell top wall and the first housing lower wall, described rotary cylinder assembly comprises: rotary cylinder, with the upper bracket of the first shell top wall phase fixing and the undersetting with the first housing lower wall phase fixing, clutch shaft bearing is provided with between described rotary cylinder and upper bracket, the second bearing is provided with between described rotary cylinder and undersetting, the central authorities of described rotary cylinder are provided with a through hole, each line shaft assembly comprises: upper cover plate, lower cover, axle and pinion integrated with axle, described upper cover plate and the first shell top wall phase fixing, described lower cover and the first housing lower wall phase fixing, the 3rd bearing is provided with between described axle and upper cover plate, the 4th bearing is provided with between described axle and lower cover, the below of each line shaft assembly is provided with band reducer hydraulic motor, described axle is connected with band reducer hydraulic motor, described pinion is meshed with gear wheel, described gear wheel and rotary cylinder assembly phase fixing, the top of described rotary cylinder assembly is provided with the first hydraulic cylinder leg, described first hydraulic cylinder leg is provided with the first hydraulic cylinder assembly of several even arrangement, the axis perpendicular of several first hydraulic cylinder assembly and rotary cylinder is arranged, the piston rod of each first hydraulic cylinder assembly is all provided with the first circular arc dental lamina, described back-up tong comprises the second housing, be arranged at the second hydraulic cylinder leg in the second housing and be arranged at the several second hydraulic cylinder assemblies on the second hydraulic cylinder leg, the piston rod of each second hydraulic cylinder assembly is all provided with the second circular arc dental lamina, described banked direction control valves assembly is connected with external hydraulic system, be connected by sebific duct between described banked direction control valves assembly with each band reducer hydraulic motor, described banked direction control valves assembly is connected by the first flexible pipe with between rotary cylinder assembly, seal oil duct by several between described rotary cylinder assembly with several first hydraulic cylinder assembly to be connected, be connected by the second flexible pipe between described banked direction control valves assembly with several second hydraulic cylinder assembly.
Preferably, remain silent in pincers combination plier in above-mentioned one, described first circular arc dental lamina be shiny surface by clamping the face that pipe fitting contacts, described first circular arc dental lamina is made up of nonmetals.
Preferably, remain silent in pincers combination plier in above-mentioned one, described first circular arc dental lamina be serrated face by clamping the face that pipe fitting contacts, described first circular arc dental lamina is made up of metal material.
Preferably, remain silent in pincers combination plier in above-mentioned one, described second circular arc dental lamina be shiny surface by clamping the face that pipe fitting contacts, described second circular arc dental lamina is made up of nonmetals.
Preferably, remain silent in pincers combination plier in above-mentioned one, described second circular arc dental lamina be serrated face by clamping the face that pipe fitting contacts, described second circular arc dental lamina is made up of metal material.
Preferably, remain silent in pincers combination plier in above-mentioned one, the quantity of described line shaft assembly and band reducer hydraulic motor is four, and the oil circuit of four band reducer hydraulic motors adopts and is connected in parallel.
Preferably, remain silent in pincers combination plier in above-mentioned one, described banked direction control valves assembly is provided with shackle handle, main pincers clamping and release handle and back-up tong clamping and release handle.
Preferably, remain silent in pincers combination plier in above-mentioned one, described banked direction control valves assembly is connected with PLC.
Preferably, remain silent in pincers combination plier in above-mentioned one, oil circuit, after banked direction control valves assembly and rotary cylinder assembly, is provided with diffluence motor, fine setting choke valve, booster and pressurize lock before entering the first hydraulic cylinder assembly.
Preferably, remain silent in pincers combination plier in above-mentioned one, the oil circuit for connecting banked direction control valves assembly and the second hydraulic cylinder assembly is provided with diffluence motor, finely tune choke valve, booster and pressurize locks.
Beneficial effect of the present invention is: the pincers combination plier of remaining silent in the present invention, solve existing pincers design of remaining silent unreasonable, cause damaging that oil pipe, sleeve pipe, drilling rod body are serious, the problem of poor stability, the remaining silent pincers combination plier in the present invention can make oil pipe, sleeve pipe, drilling rod body reach seamless or the effect of micro-damage; When upper shackle action is exchanged, do not need to open cover plate, ensure that operating efficiency and product quality and safety in utilization increases, thus reduce enterprise's cost of production and drop into, make enterprise remain advantage in market competition, be convenient to realize well head automation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 remains silent in the present invention to clamp the structural representation of combination plier.
Fig. 2 is the structural representation of main pincers in the present invention.
Fig. 3 is the sectional structure schematic diagram along the line of A-A shown in Fig. 2.
In Fig. 1 to Fig. 3: 1, main pincers, 2, back-up tong, 3, front guide rod, 4, rear support, 5, front guide rod spring, 6, banked direction control valves assembly, 7, first housing, 8, rotary cylinder assembly, 9, gear wheel, 10, line shaft assembly, 11, first shell top wall, 12, first housing lower wall, 13, rotary cylinder, 14, upper bracket, 15, undersetting, 16, clutch shaft bearing, 17, second bearing, 18, through hole, 19, upper cover plate, 20, lower cover, 21, axle, 22, pinion, 23, 3rd bearing, 24, 4th bearing, 25, band reducer hydraulic motor, 26, first hydraulic cylinder leg, 27, first hydraulic cylinder assembly, 28, first circular arc dental lamina, 29, second housing, 30, second hydraulic cylinder leg, 31, second hydraulic cylinder assembly, 32, back-guiding rod spring.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred embodiments illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these embodiments.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Shown in ginseng Fig. 1 to Fig. 3, one is remained silent pincers combination plier, comprising: main pincers 1, back-up tong 2 and for connecting guide rod 3 and rear support 4 before main pincers 1 and back-up tong 2, described front guide rod 3 is provided with front guide rod spring 5, described rear support 4 is provided with back-guiding rod spring 32.
Described main pincers 1 comprise: banked direction control valves assembly 6, first housing 7 and the rotary cylinder assembly 8 be arranged in the first housing 7, gear wheel 9 and four line shaft assemblies 10, described first housing 7 comprises the first shell top wall 11 and the first housing lower wall 12, described rotary cylinder assembly 8 comprises: rotary cylinder 13, with the upper bracket 14 of the first shell top wall 11 phase fixing and the undersetting 15 with the first housing lower wall 12 phase fixing, clutch shaft bearing 16 is provided with between described rotary cylinder 13 and upper bracket 14, the second bearing 17 is provided with between described rotary cylinder 13 and undersetting 15, the central authorities of described rotary cylinder 13 are provided with a through hole 18, each line shaft assembly 10 comprises: upper cover plate 19, lower cover 20, axle 21 and pinion 22 integrated with axle 21, described upper cover plate 19 and the first shell top wall 11 phase fixing, described lower cover 20 and the first housing lower wall 12 phase fixing, the 3rd bearing 23 is provided with between described axle 21 and upper cover plate 19, the 4th bearing 24 is provided with between described axle 21 and lower cover 20, the below of each line shaft assembly 10 is provided with band reducer hydraulic motor 25, described axle 21 is connected with band reducer hydraulic motor 25, described pinion 22 is meshed with gear wheel 9, described gear wheel 9 and rotary cylinder assembly 8 phase fixing, the top of described rotary cylinder assembly 8 is provided with the first hydraulic cylinder leg 26, described first hydraulic cylinder leg 26 is provided with four the first hydraulic cylinder assemblies 27 of evenly arranging, each first hydraulic cylinder assembly 27 is arranged with the axis perpendicular of rotary cylinder 13, clamping force is very large, frictional force can be made like this to increase, thus must moment of torsion be arrived.The contact area piston rod of each first hydraulic cylinder assembly 27 being all provided with the first circular arc dental lamina 28, first circular arc dental lamina 28 is large, makes oil pipe surface uniform stressed, makes oil pipe indeformable.In the present embodiment, described first circular arc dental lamina 28 be serrated face by clamping the face that pipe fitting contacts, described first circular arc dental lamina 28 is made up of high-quality steel and through Overheating Treatment, can be made drilling rod body surface uniform stressed, realize micro-damage, certainly, in other embodiments, described first circular arc dental lamina 28 with can be also shiny surface by clamping the face that pipe fitting contacts, when for shiny surface, described first circular arc dental lamina 28 is made up of nonmetals, can ensure the seamless effect of body.
Described back-up tong 2 comprises the second housing 29, is arranged at the second hydraulic cylinder leg 30 in the second housing 29 and is arranged at four the second hydraulic cylinder assemblies 31 on the second hydraulic cylinder leg 30, and described second housing comprises top panel, lower panel and the several stay pipes for connecting top panel and lower panel.The piston rod of each second hydraulic cylinder assembly 31 is all provided with the second circular arc dental lamina (not shown), in the present embodiment, described second circular arc dental lamina be serrated face by clamping the face that pipe fitting contacts, described second circular arc dental lamina is made up of high-quality steel and through Overheating Treatment, drilling rod body surface uniform stressed can be made, realize micro-damage, certainly, in other embodiments, described second circular arc dental lamina with also can be shiny surface by clamping the face that pipe fitting contacts, when for shiny surface, described second circular arc dental lamina is made up of nonmetals, the seamless effect of body can be ensured.
Described banked direction control valves assembly 6 is connected with external hydraulic system, be connected by sebific duct between described banked direction control valves assembly 6 with each band reducer hydraulic motor 25, described banked direction control valves assembly 6 is connected by the first flexible pipe with between rotary cylinder assembly 8, seal oil duct by several between described rotary cylinder assembly 8 with several first hydraulic cylinder assembly 27 to be connected, be connected by the second flexible pipe between described banked direction control valves assembly 6 with several second hydraulic cylinder assembly 31.The oil circuit of four band reducer hydraulic motors 25 adopts and is connected in parallel.Described banked direction control valves assembly 6 is provided with shackle handle, and main pincers clamping and release handle and back-up tong clamping and release handle, can realize Non-follow control, and certainly, described banked direction control valves assembly 6 also can be connected with PLC, to realize Automated condtrol.Oil circuit is after banked direction control valves assembly 6 with rotary cylinder assembly 8, diffluence motor, fine setting choke valve, booster and pressurize lock is provided with before entering the first hydraulic cylinder assembly 27, thus can ensure that the piston rod of four the first hydraulic cylinder assemblies 27 is synchronized with the movement, and ensure the clamping pressure that the piston rod of the first hydraulic cylinder assembly 27 is powerful.Oil circuit for connecting banked direction control valves assembly 6 and the second hydraulic cylinder assembly 31 is provided with diffluence motor, finely tune choke valve, booster and pressurize locks, thus can ensure that the piston rod of four the second hydraulic cylinder assemblies 31 is synchronized with the movement, and ensure the clamping pressure that the piston rod of the second hydraulic cylinder assembly 31 is powerful.
In the present invention, the operating principle of combination plier is: combination plier is when workover treatment, it is horizontal positioned, play the intermediate throughholes that oil pipe or lower oil pipe are directly through the vertical direction of the remain silent main pincers of pincers and back-up tong, when needing main pincers 1 to clamp, the main pincers clamping lever of operation banked direction control valves assembly 6, the piston rod of four the first hydraulic cylinder assemblies 27 synchronously stretches out, first circular arc dental lamina 28 clamps oil pipe, when needs are buckled, attacker's handle on operation banked direction control valves assembly 6, first circular arc dental lamina 28 is bitten the surface of body and is started to rotate, under the effect of reaction torque is provided at back-up tong 2, form moment of torsion, button can be completed, when needing shackle, then operate banked direction control valves assembly 6 shackle handle, the first circular arc dental lamina 28 is bitten tube surfaces and is started to rotate toward shackle direction, under providing the effect of reaction torque, forms moment of torsion, can complete shackle at back-up tong 2, when needing main pincers 1 to unclamp, the main pincers release handle of operation banked direction control valves assembly 6, the piston synchronous of four the first hydraulic cylinder assemblies 27 is retracted, and the first circular arc dental lamina 28 leaves body.When needing back-up tong 2 to clamp, the back-up tong clamping lever of operation banked direction control valves assembly 1, the piston rod of four the second hydraulic cylinder assemblies 31 synchronously stretches out, second circular arc dental lamina clamping oil pipe, when needs back-up tong 2 unclamps, the back-up tong release handle of operation banked direction control valves assembly 6, the piston synchronous of four the second hydraulic cylinder assemblies 31 is retracted, and the second circular arc dental lamina leaves body.The oil circuit that the clamping of main pincers 1, the oil circuit unclamped and upper shackle rotate independently separates, the oil circuit rotated is that external hydraulic system is first connected with banked direction control valves assembly, and then pass through the oil inlet and outlet of sebific duct connecting band reducer hydraulic motor 25, then the transmission of line shaft assembly 10 and gear wheel 9 is passed through, rotary cylinder assembly 8 is driven to rotate, thus drive the several first hydraulic cylinder assemblies 27 above rotary cylinder assembly 8 to rotate, gear wheel 9, rotary cylinder assembly 8, first hydraulic cylinder leg 26, first hydraulic cylinder total 27 one-tenths they are synchronous rotations continuously; Main clamp is tight, unclamp oil circuit be by rotary cylinder assembly inside sealing oil duct be connected to the first hydraulic cylinder assembly, and have the sealing of revolution pressure-resistant seal, when design can ensure that main pincers clamping cylinder clamps body like this, energy rotation with pressure.The oil circuit that back-up tong clamps, unclamp and the oil circuit of main pincers separate.
In sum, the combination plier in the present invention, solves existing pincers design of remaining silent unreasonable, causes damaging that oil pipe, sleeve pipe, drilling rod body are serious, the problem of poor stability, and the remaining silent pincers in the present invention can make oil pipe body reach seamless or the effect of micro-damage; When upper shackle action is exchanged, do not need to open cover plate, ensure that operating efficiency and product quality and safety in utilization increases, thus reduce enterprise's cost of production and drop into, make enterprise remain advantage in market competition, be convenient to realize well head automation.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Claims (10)
1. a pincers combination plier of remaining silent, it is characterized in that, comprise: main pincers, back-up tong and for connecting guide rod and rear support before main pincers and back-up tong, described front guide rod is provided with front guide rod spring, described rear support is provided with back-guiding rod spring, described main pincers comprise: banked direction control valves assembly, first housing and the rotary cylinder assembly be arranged in the first housing, gear wheel and several line shaft assembly, described first housing comprises the first shell top wall and the first housing lower wall, described rotary cylinder assembly comprises: rotary cylinder, with the upper bracket of the first shell top wall phase fixing and the undersetting with the first housing lower wall phase fixing, clutch shaft bearing is provided with between described rotary cylinder and upper bracket, the second bearing is provided with between described rotary cylinder and undersetting, the central authorities of described rotary cylinder are provided with a through hole, each line shaft assembly comprises: upper cover plate, lower cover, axle and pinion integrated with axle, described upper cover plate and the first shell top wall phase fixing, described lower cover and the first housing lower wall phase fixing, the 3rd bearing is provided with between described axle and upper cover plate, the 4th bearing is provided with between described axle and lower cover, the below of each line shaft assembly is provided with band reducer hydraulic motor, described axle is connected with band reducer hydraulic motor, described pinion is meshed with gear wheel, described gear wheel and rotary cylinder assembly phase fixing, the top of described rotary cylinder assembly is provided with the first hydraulic cylinder leg, described first hydraulic cylinder leg is provided with the first hydraulic cylinder assembly of several even arrangement, the axis perpendicular of several first hydraulic cylinder assembly and rotary cylinder is arranged, the piston rod of each first hydraulic cylinder assembly is all provided with the first circular arc dental lamina, described back-up tong comprises the second housing, be arranged at the second hydraulic cylinder leg in the second housing and be arranged at the several second hydraulic cylinder assemblies on the second hydraulic cylinder leg, the piston rod of each second hydraulic cylinder assembly is all provided with the second circular arc dental lamina, described banked direction control valves assembly is connected with external hydraulic system, be connected by sebific duct between described banked direction control valves assembly with each band reducer hydraulic motor, described banked direction control valves assembly is connected by the first flexible pipe with between rotary cylinder assembly, seal oil duct by several between described rotary cylinder assembly with several first hydraulic cylinder assembly to be connected, be connected by the second flexible pipe between described banked direction control valves assembly with several second hydraulic cylinder assembly.
2. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: described first circular arc dental lamina be shiny surface by clamping the face that pipe fitting contacts, described first circular arc dental lamina is made up of nonmetals.
3. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: described first circular arc dental lamina be serrated face by clamping the face that pipe fitting contacts, described first circular arc dental lamina is made up of metal material.
4. as claimed in claim 2 or claim 3 one is remained silent pincers combination plier, it is characterized in that: described second circular arc dental lamina be shiny surface by clamping the face that pipe fitting contacts, described second circular arc dental lamina is made up of nonmetals.
5. as claimed in claim 2 or claim 3 one is remained silent pincers combination plier, it is characterized in that: described second circular arc dental lamina be serrated face by clamping the face that pipe fitting contacts, described second circular arc dental lamina is made up of metal material.
6. one as claimed in claim 1 is remained silent pincers combination plier, and it is characterized in that: the quantity of described line shaft assembly and band reducer hydraulic motor is four, the oil circuit of four band reducer hydraulic motors adopts and is connected in parallel.
7. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: described banked direction control valves assembly is provided with shackle handle, main pincers clamping and release handle and back-up tong clamping and release handle.
8. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: described banked direction control valves assembly is connected with PLC.
9. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: oil circuit, after banked direction control valves assembly and rotary cylinder assembly, is provided with diffluence motor, fine setting choke valve, booster and pressurize and locks before entering the first hydraulic cylinder assembly.
10. one as claimed in claim 1 is remained silent pincers combination plier, it is characterized in that: the oil circuit for connecting banked direction control valves assembly and the second hydraulic cylinder assembly is provided with diffluence motor, finely tune choke valve, booster and pressurize locks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505361.6A CN105064933B (en) | 2015-08-18 | 2015-08-18 | One kind is remained silent pincers combination plier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505361.6A CN105064933B (en) | 2015-08-18 | 2015-08-18 | One kind is remained silent pincers combination plier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105064933A true CN105064933A (en) | 2015-11-18 |
| CN105064933B CN105064933B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510505361.6A Active CN105064933B (en) | 2015-08-18 | 2015-08-18 | One kind is remained silent pincers combination plier |
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| CN (1) | CN105064933B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201173096Y (en) * | 2008-03-01 | 2008-12-31 | 任民 | Hydraulic dynamic pliers back-ups |
| CN201443318U (en) * | 2008-10-18 | 2010-04-28 | 西南石油大学 | Power clamp for continuous cycling drilling operation |
| CN101818626A (en) * | 2009-02-27 | 2010-09-01 | 盐城特达钻采设备有限公司 | Back-up tong driving structure for power tongs |
| CN203515391U (en) * | 2013-10-15 | 2014-04-02 | 江苏申利达机械制造有限公司 | Large-torque makeup and breakout unit capable of rotating continuously by 360 degrees |
| CN103939038A (en) * | 2014-04-10 | 2014-07-23 | 江苏申利达机械制造有限公司 | Hydraulic power tongs without tooth marks |
| CN203879421U (en) * | 2014-05-04 | 2014-10-15 | 江苏如通石油机械股份有限公司 | Novel pipe rod closed-type power tongs |
| CN204419081U (en) * | 2015-01-27 | 2015-06-24 | 南通金牛机械制造有限公司 | A kind of drill pipe tong need not changing jaw |
| CN204827283U (en) * | 2015-08-18 | 2015-12-02 | 江苏申利达机械制造有限公司 | Pincers combination plier of remaining silent |
-
2015
- 2015-08-18 CN CN201510505361.6A patent/CN105064933B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201173096Y (en) * | 2008-03-01 | 2008-12-31 | 任民 | Hydraulic dynamic pliers back-ups |
| CN201443318U (en) * | 2008-10-18 | 2010-04-28 | 西南石油大学 | Power clamp for continuous cycling drilling operation |
| CN101818626A (en) * | 2009-02-27 | 2010-09-01 | 盐城特达钻采设备有限公司 | Back-up tong driving structure for power tongs |
| CN203515391U (en) * | 2013-10-15 | 2014-04-02 | 江苏申利达机械制造有限公司 | Large-torque makeup and breakout unit capable of rotating continuously by 360 degrees |
| CN103939038A (en) * | 2014-04-10 | 2014-07-23 | 江苏申利达机械制造有限公司 | Hydraulic power tongs without tooth marks |
| CN203879421U (en) * | 2014-05-04 | 2014-10-15 | 江苏如通石油机械股份有限公司 | Novel pipe rod closed-type power tongs |
| CN204419081U (en) * | 2015-01-27 | 2015-06-24 | 南通金牛机械制造有限公司 | A kind of drill pipe tong need not changing jaw |
| CN204827283U (en) * | 2015-08-18 | 2015-12-02 | 江苏申利达机械制造有限公司 | Pincers combination plier of remaining silent |
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| Publication number | Publication date |
|---|---|
| CN105064933B (en) | 2017-07-04 |
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Denomination of invention: A type of closed pliers combination pliers Granted publication date: 20170704 Pledgee: Bank of China Limited Jianhu Branch Pledgor: JIANGSU SHENLIDA MACHINERY MANUFACTURE CO.,LTD. Registration number: Y2024980007556 |
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