CN105546116A - Self-centering ultrahigh-pressure motive seal kit - Google Patents
Self-centering ultrahigh-pressure motive seal kit Download PDFInfo
- Publication number
- CN105546116A CN105546116A CN201610049440.5A CN201610049440A CN105546116A CN 105546116 A CN105546116 A CN 105546116A CN 201610049440 A CN201610049440 A CN 201610049440A CN 105546116 A CN105546116 A CN 105546116A
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- China
- Prior art keywords
- pressure
- self
- centering
- oil cylinder
- centering pad
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/56—Other sealings for reciprocating rods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A self-centering ultrahigh-pressure motive seal kit comprises an oil cylinder, an oil cylinder seal head, a high-pressure cylinder, a piston assembly, a piston rod and an axial self-centering pad, wherein the oil cylinder seal head is connected with the oil cylinder, the high-pressure cylinder is connected with the oil cylinder seal head, the piston assembly is arranged in the oil cylinder, and the piston rod is connected with the piston; the axial self-centering pad consists of a self-centering shell and a guide sleeve I and a guide sleeve II respectively embedded into two sides of an axle hole of the self-centering shell; the piston rod connected with the piston assembly penetrates through the oil cylinder seal head to extend into the high-pressure cylinder; the low-pressure oil end of the oil cylinder seal head is provided with a guide sleeve III, an oil seal I, an oil seal collar and a snap spring which are precisely matched, and a first guide function is exerted on the piston rod; the axial self-centering pad is sheathed on the piston rod, and the axial self-centering pad is tightly attached to a conical surface installed of the oil cylinder seal head, therefore a double guide function is exerted on the piston rod; a high-pressure seal assembly and a spacing sleeve used for limiting the high-pressure seal assembly are arranged between the piston rod and the high-pressure cylinder in sequence. The self-centering ultrahigh-pressure motive seal kit disclosed by the invention has the advantages that installation, disassembly and maintenance are facilitated, maintenance cost is reduced, high-pressure seal performance is extended, and the high-pressure components are prolonged in service life.
Description
Technical field
The present invention relates to the suction booster of Water Cutting equipment, what particularly relate to reciprocating intensifier pump a kind ofly seals reliable, installation, maintenance, self contering ultrahigh pressure motive sealing external member easy to maintenance.
Background technique
Along with the development of water-jet technology application, the pressure of water jet is also more and more higher, and in water jet system, the life and reliability of original paper sealing is a key factor of restriction water jet development, and the pressure of ultrahigh pressure is higher, discharge capacity is larger; Higher to seal request, corresponding sealing difficulty is larger, if there is atomic little leakage will affect the stability of whole equipment work, ultrahigh pressure motive sealing is one of the core technology in water-jet technology field, is related to added value and the quality of extra-high tension unit; And in ultrahigh pressure movable sealing structure, the coaxality in piston rod, high-pressure cylinder, the reciprocal running of high pressure sealing determines one of most important factor of high pressure sealing.The deficiency that the application of structural design in large discharge, high pressure high-end devices of general high-tension apparatus obviously exposes because of coaxality causes Sealing short-term to damage, and affects the defect of sealing life.
Summary of the invention
The technical problem to be solved in the present invention is, there is provided one conveniently can install, dismantle, keep in repair, safeguard, reduce maintenance cost, reach and extend high pressure sealing performance, extend high voltage component working life, improve the self contering ultrahigh pressure motive sealing external member of stable equipment operation.
The technological scheme adopted is:
Self contering ultrahigh pressure motive sealing external member, comprises piston rod, the axial self-centering pad of oil cylinder, the oil cylinder seal head of connection oil cylinder, the high-pressure cylinder connecting oil cylinder seal head, the piston assembly be contained in oil cylinder, connection piston.Described axial self-centering pad inlays guide pin bushing I respectively by self contering housing and axis hole both sides thereof and guide pin bushing II is formed, described self contering housing is provided with axial self-centering pad large end face, the axial self-centering pad conical surface and axial self-centering pad and installs screw thread, wherein axial self-centering pad large end face and axial self-centering pad axis perpendicular, the axial self-centering pad conical surface is coaxial with axial self-centering pad axle center.The piston rod of described connection piston assembly puts in high-pressure cylinder through oil cylinder seal head, and the low oil pressure end of oil cylinder seal head is provided with precision-fit guide pin bushing III, oil sealing I, oil seal collar, jump ring, reaches sealing oil pressure and plays the first effect be redirected to piston rod.Described axial self-centering cushion cover dress on the piston rod, and axial self-centering pad is arranged on oil cylinder seal head and high-pressure cylinder joint, the high voltage terminal of described oil cylinder seal head is provided with the conical surface matched with the axial self-centering pad conical surface, try hard to recommend dynamic high-pressure cylinder outside and compress axial self-centering pad, axial self-centering pad and oil cylinder seal head fit tightly, because the conical surface has self-centering characteristic, axial self-centering pad plays the effect of dual guiding to piston rod.Described putting between the piston rod of high-pressure cylinder and high-pressure cylinder is disposed with high-pressure sealing component and spacing spacer sleeve thereof, and the high-pressure cylinder nut be threaded connection on the matching thread of high-pressure cylinder waterexit end compresses spacer sleeve, prevents high-pressure sealing component axial float.After high-pressure cylinder is in place, remove high-pressure cylinder nut, by closely cooperating of described high-pressure cylinder and high pressure sealing; The precision-fit of oil cylinder seal head and axial self-centering pad; Again by the concentric guide cylinder fitting surface of high-pressure cylinder and oil cylinder seal head, axial self-centering conical surface, guide pin bushing III three coordinates, and realizes piston rod coaxial high pressure in high-pressure cylinder, high pressure sealing and runs, form self contering ultrahigh pressure motive sealing external member.
The axial self-centering pad installing/dismounting sleeve that has been threaded installed by the above-mentioned axial self-centering pad set by axial self-centering pad, can advance, pull out axial self-centering pad with axial self-centering pad installing/dismounting sleeve, complete the installation and removal of axial self-centering pad.
The high voltage terminal of above-mentioned oil cylinder seal head is provided with the close-fitting concentric guide cylinder fitting surface with high-pressure cylinder, plays with axially oriented effect high-pressure cylinder.
Above-mentioned high pressure sealing, when keeping in repair, screws in high-pressure cylinder dismounting nut on the threaded end of high-pressure cylinder, by clashing into high-pressure cylinder dismounting nut spindle nose with hitting iron, is extracted by high-pressure cylinder from oil cylinder seal head.
The above-mentioned annular groove being provided with oil sealing II between oil cylinder seal head and axial self-centering pad, when oil sealing I lost efficacy, oil sealing II was arranged in annular groove, continues the reliability ensureing sealing, extend the working life of low pressure seal under the prerequisite not dismantling oil cylinder seal head.
Seal Kit coaxality of the present invention is high, convenient to install, dismounting, maintenance, to safeguard, reduce maintenance cost, reaches to extend high pressure sealing performance, extend high voltage component working life, improves stable equipment operation.
Accompanying drawing explanation
Fig. 1 is axial self-centering mat structure schematic diagram of the present invention.
Fig. 2 is axial self-centering pad installing/dismounting sleeve of the present invention and axial self-centering pad connection diagram.
Fig. 3 is structural representation of the present invention.
Fig. 4 is high-pressure sealing component of the present invention and spacer sleeve scheme of installation.
Fig. 5 is high-pressure cylinder of the present invention dismounting nut dismounting high-pressure cylinder schematic diagram.
Embodiment
Self contering ultrahigh pressure motive sealing external member, comprises piston rod 22, the axial self-centering pad 12 of oil cylinder 27, the oil cylinder seal head 14 of connection oil cylinder, the high-pressure cylinder 11 connecting oil cylinder seal head, the piston assembly 26 be contained in oil cylinder, connection piston.Described axial self-centering pad 12 inlays guide pin bushing I1 respectively by self contering housing 3 and axis hole both sides thereof and guide pin bushing II2 is formed, described self contering housing 3 is provided with axial self-centering pad large end face 5, the axial self-centering pad conical surface 6 and axial self-centering pad and installs screw thread 4, wherein axial self-centering pad large end face 5 is vertical with axial self-centering pad axle center 7, the axial self-centering pad conical surface 6 coaxial with axial self-centering pad axle center 7 (see Fig. 1).The piston rod 22 of described connection piston assembly 26 puts in high-pressure cylinder 11 through oil cylinder seal head 14, the low oil pressure end of oil cylinder seal head 14 is provided with precision-fit guide pin bushing III15, oil sealing I16, oil seal collar 17, jump ring 18, reach sealing oil pressure and play the first effect be redirected to piston rod.Described axial self-centering pad 12 is sleeved on piston rod 22, and axial self-centering pad 12 is arranged on oil cylinder seal head 14 and high-pressure cylinder 11 joint, the high voltage terminal of described oil cylinder seal head 14 is provided with the conical surface matched with the axial self-centering pad conical surface, try hard to recommend dynamic high-pressure cylinder 11 outside and compress axial self-centering pad 12, axial self-centering pad 12 and oil cylinder seal head 14 fit tightly, because the conical surface has self-centering characteristic, axial self-centering pad plays the effect (see Fig. 3) of dual guiding to piston rod.The annular groove of oil sealing II19 is provided with between described oil cylinder seal head 14 and axial self-centering pad 12, when oil sealing I16 lost efficacy, oil sealing II19 is arranged in annular groove, continues the reliability ensureing sealing, extend the working life of low pressure seal under the prerequisite not dismantling oil cylinder seal head.Axial self-centering pad set by described axial self-centering pad 12 is installed screw thread 4 and is connected with axial self-centering pad installing/dismounting sleeve 8, useful axial self-centering pad installing/dismounting sleeve 8 advances, pulls out axial self-centering pad 12, completes the installation and removal of axial self-centering pad.Described putting between the piston rod 22 of high-pressure cylinder and high-pressure cylinder 11 is disposed with high-pressure sealing component 10 and spacing spacer sleeve 9 thereof, the high-pressure cylinder nut 20 be threaded connection on high-pressure cylinder waterexit end matching thread 21 compresses spacer sleeve 9, prevent high-pressure sealing component axial float (see Fig. 4), after high-pressure cylinder is in place, remove high-pressure cylinder nut.High pressure sealing, when keeping in repair, screws in high-pressure cylinder dismounting nut 25 on the threaded end of high-pressure cylinder 11, by clashing into high-pressure cylinder dismounting nut spindle nose 28 with hitting iron 24, is extracted (see Fig. 5) by high-pressure cylinder 11 from oil cylinder seal head 14.By closely cooperating of described high-pressure cylinder 11 and high pressure sealing 10; The precision-fit face 13 of oil cylinder seal head 14 and axial self-centering pad 12; Again by high-pressure cylinder 11 and the concentric guide cylinder fitting surface 23 of oil cylinder seal head 14, axial self-centering conical surface 6, guide pin bushing III15 three coordinates, and realizes piston rod coaxial high pressure in high-pressure cylinder, high pressure sealing and runs, form self contering ultrahigh pressure motive sealing external member.
The structural design of self contering ultrahigh pressure motive sealing external member of the present invention is applicable to the motive sealing of all extra-high tension units, all within protection of the present invention.
Claims (5)
1. self contering ultrahigh pressure motive sealing external member, comprise oil cylinder (27), connect the oil cylinder seal head (14) of oil cylinder, connect the high-pressure cylinder (11) of oil cylinder seal head, be contained in the piston assembly (26) in oil cylinder, connect the piston rod (22) of piston, axial self-centering pad (12), it is characterized in that described axial self-centering pad (12) inlays guide pin bushing I (1) respectively by self contering housing (3) and axis hole both sides thereof and guide pin bushing II (2) is formed, described self contering housing (3) is provided with axial self-centering pad large end face (5), screw thread (4) installed by the axial self-centering pad conical surface (6) and axial self-centering pad, wherein axial self-centering pad large end face (5) is vertical with axial self-centering pad axle center (7), the axial self-centering pad conical surface (6) is coaxial with axial self-centering pad axle center (7), the piston rod (22) of described connection piston assembly (26) puts in high-pressure cylinder (11) through oil cylinder seal head (14), the low oil pressure end of oil cylinder seal head (14) is provided with precision-fit guide pin bushing III (15), oil sealing I1 (6), oil seal collar (17), jump ring (18), reach sealing oil pressure and the first effect be redirected is played to piston rod, described axial self-centering pad (12) is sleeved on piston rod (22), and axial self-centering pad (12) is arranged on oil cylinder seal head (14) and high-pressure cylinder (11) joint, the high voltage terminal of described oil cylinder seal head (14) is provided with the conical surface matched with the axial self-centering pad conical surface, try hard to recommend dynamic high-pressure cylinder (11) outside and compress axial self-centering pad (12), axial self-centering pad (12) and oil cylinder seal head (14) fit tightly, because the conical surface has self-centering characteristic, axial self-centering pad plays the effect of dual guiding to piston rod, described putting between the piston rod (22) of high-pressure cylinder and high-pressure cylinder (11) is disposed with high-pressure sealing component (10) and spacing spacer sleeve (9) thereof, the high-pressure cylinder nut (20) be threaded connection on high-pressure cylinder waterexit end matching thread (21) compresses spacer sleeve (9), prevent high-pressure sealing component axial float, after high-pressure cylinder is in place, remove high-pressure cylinder nut, by closely cooperating of described high-pressure cylinder (11) and high pressure sealing (10), the precision-fit face (13) of oil cylinder seal head (14) and axial self-centering pad (12), again by high-pressure cylinder (11) and the concentric guide cylinder fitting surface (23) of oil cylinder seal head (14), axial self-centering conical surface (6), guide pin bushing III (15) three coordinates, realize piston rod coaxial high pressure in high-pressure cylinder, high pressure sealing to run, form self contering ultrahigh pressure motive sealing external member.
2. self contering ultrahigh pressure motive sealing external member according to claim 1, it is characterized in that the described axial self-centering pad set by axial self-centering pad (12) is installed screw thread (4) and is connected with axial self-centering pad installing/dismounting sleeve (8), available axial self-centering pad installing/dismounting sleeve (8) advances, pulls out axial self-centering pad (12), completes the installation and removal of axial self-centering pad.
3. self contering ultrahigh pressure motive sealing external member according to claim 1, it is characterized in that the high voltage terminal of described oil cylinder seal head (14) is provided with the close-fitting concentric guide cylinder fitting surface (23) with high-pressure cylinder (11), high-pressure cylinder is played with axially oriented effect.
4. self contering ultrahigh pressure motive sealing external member according to claim 1, it is characterized in that described high pressure sealing (10) is when keeping in repair, screw in high-pressure cylinder dismounting nut (25) on the threaded end of high-pressure cylinder (11), by clashing into high-pressure cylinder dismounting nut spindle nose (28) with hitting iron (24), high-pressure cylinder (11) is extracted from oil cylinder seal head (14).
5. self contering ultrahigh pressure motive sealing external member according to claim 1, it is characterized in that the annular groove being provided with oil sealing II (19) between described oil cylinder seal head (14) and axial self-centering pad (12), when oil sealing I (16) lost efficacy, oil sealing II (19) is arranged in annular groove, under the prerequisite not dismantling oil cylinder seal head, continue the reliability ensureing sealing, extend the working life of low pressure seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049440.5A CN105546116A (en) | 2016-01-25 | 2016-01-25 | Self-centering ultrahigh-pressure motive seal kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049440.5A CN105546116A (en) | 2016-01-25 | 2016-01-25 | Self-centering ultrahigh-pressure motive seal kit |
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| Publication Number | Publication Date |
|---|---|
| CN105546116A true CN105546116A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610049440.5A Pending CN105546116A (en) | 2016-01-25 | 2016-01-25 | Self-centering ultrahigh-pressure motive seal kit |
Country Status (1)
| Country | Link |
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| CN (1) | CN105546116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907360A (en) * | 2017-03-15 | 2017-06-30 | 合肥良骏汽车材料有限公司 | For the Water Cutting booster of carpet for automobile cutting |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02298675A (en) * | 1989-04-04 | 1990-12-11 | Flow Internatl Corp | High pressure seal assemble for high pressure cylinder piston pump |
| US6086070A (en) * | 1997-09-18 | 2000-07-11 | Flow International Corporation | High pressure fluid seal assembly |
| CN203248709U (en) * | 2013-04-11 | 2013-10-23 | 徐州徐工液压件有限公司 | Conical face matching structure for oil cylinder pressing cover and guide sleeve |
| CN104613050A (en) * | 2015-01-30 | 2015-05-13 | 沈阳广惠志成数控切割设备有限公司 | Rigid sealing structure for water inlet and outlet valve and high-pressure water cylinder of supercharger |
| CN104632772A (en) * | 2015-01-20 | 2015-05-20 | 沈阳广惠志成数控切割设备有限公司 | Two-in-one composite bidirectional sealing sleeve set |
| CN105114389A (en) * | 2015-07-27 | 2015-12-02 | 柳州柳工液压件有限公司 | Hydraulic oil cylinder |
| CN105134673A (en) * | 2015-09-24 | 2015-12-09 | 沈阳广惠志成数控切割设备有限公司 | Ultrahigh pressure conical surface rigidly-sealed self-pre-fastening energy accumulator |
| CN205503984U (en) * | 2016-01-25 | 2016-08-24 | 沈阳广惠志成数控切割设备有限公司 | From super high -pressure dynamic sealing external member of centering |
-
2016
- 2016-01-25 CN CN201610049440.5A patent/CN105546116A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02298675A (en) * | 1989-04-04 | 1990-12-11 | Flow Internatl Corp | High pressure seal assemble for high pressure cylinder piston pump |
| US6086070A (en) * | 1997-09-18 | 2000-07-11 | Flow International Corporation | High pressure fluid seal assembly |
| CN203248709U (en) * | 2013-04-11 | 2013-10-23 | 徐州徐工液压件有限公司 | Conical face matching structure for oil cylinder pressing cover and guide sleeve |
| CN104632772A (en) * | 2015-01-20 | 2015-05-20 | 沈阳广惠志成数控切割设备有限公司 | Two-in-one composite bidirectional sealing sleeve set |
| CN104613050A (en) * | 2015-01-30 | 2015-05-13 | 沈阳广惠志成数控切割设备有限公司 | Rigid sealing structure for water inlet and outlet valve and high-pressure water cylinder of supercharger |
| CN105114389A (en) * | 2015-07-27 | 2015-12-02 | 柳州柳工液压件有限公司 | Hydraulic oil cylinder |
| CN105134673A (en) * | 2015-09-24 | 2015-12-09 | 沈阳广惠志成数控切割设备有限公司 | Ultrahigh pressure conical surface rigidly-sealed self-pre-fastening energy accumulator |
| CN205503984U (en) * | 2016-01-25 | 2016-08-24 | 沈阳广惠志成数控切割设备有限公司 | From super high -pressure dynamic sealing external member of centering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907360A (en) * | 2017-03-15 | 2017-06-30 | 合肥良骏汽车材料有限公司 | For the Water Cutting booster of carpet for automobile cutting |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Manyu Inventor after: Meng Zhicheng Inventor before: Liu Manyu Inventor before: Meng Zhicheng Inventor before: Guo Ruirui |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160818 Address after: 110150 Liaoning city of Shenyang Province in Yuhong District, Hong Xiang Bei Li Guan Cun Applicant after: SHENYANG GO HIGH CNC WATERJET CUTTING CORPORATION Address before: Fang Shen Fu Metro High Bay Road 113000 in Liaoning Province, Fushun city on the city in two square large order 3 Building 2 unit 301 room Applicant before: LIAONING GUANGHUI INTELLIGENT EQUIPMENT CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |
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| WD01 | Invention patent application deemed withdrawn after publication |