CN101749015A - High pressure water hydraulic pressure balanced sealing system of development machine - Google Patents
High pressure water hydraulic pressure balanced sealing system of development machine Download PDFInfo
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- CN101749015A CN101749015A CN 200810229411 CN200810229411A CN101749015A CN 101749015 A CN101749015 A CN 101749015A CN 200810229411 CN200810229411 CN 200810229411 CN 200810229411 A CN200810229411 A CN 200810229411A CN 101749015 A CN101749015 A CN 101749015A
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Abstract
The invention provides a high pressure water hydraulic pressure balanced sealing system of a development machine; the solved problems are that: high pressure water in an internal spraying system of the development machine is directly sealed by a rotating sealing ring, as the high-pressure sealing capacity of the sealing ring under the rotating state is poor relatively, the reliability of the sealing ring is low in the practical usage, so as to cause oil-water mixing phenomenon and cause tremendous damage to mechanical parts of a main machine; the key point in the invention are: pressure intensity which can balance the high pressure water automatically is added at the non-sealing high pressure water side of the rotating sealing ring, so as to lead the rotating sealing ring to work under a zero pressure difference working state, greatly improve the sealing capacity of the sealing ring and the reliability of the whole machine; in addition, the system can automatically lubricate the rotating sealing ring and the mechanical parts which can rotate relatively, so as to greatly improve the service life of the sealing ring and all parts.
Description
Technical field
The present invention relates to a kind of high pressure water hydraulic pressure balanced sealing system of development machine, the pressure that this system utilizes hydraulic oil comes the pressure of autobalance water under high pressure as back pressure, reaches sealing and the zero leakage highly reliable to water under high pressure.
Background technology
At present, the water under high pressure of the internal spraying system of development machine adopts the rotation lattice to enclose direct sealing more, because sealing ring is relatively poor relatively in the ability of rotation status sealed high pressure, so its reliability is lower in the reality use, cause the profit mixing phenomena, huge to the mechanical part harm of main frame.
Summary of the invention
The object of the present invention is to provide a kind of high pressure water hydraulic pressure balanced sealing system of development machine, it adopts the non-tight water under high pressure side at rotating seal ring to add one and the self balancing pressure of water under high pressure, make rotating seal ring be in the zero pressure difference duty, can improve the sealability of sealing ring and the reliability of complete machine greatly.
The object of the present invention is achieved like this: this system comprises HPW hydraulic-driven high-pressure hydraulic pump, the rotation lattice come sealing ring, it is characterized in that: the hydraulically powered high-pressure hydraulic pump delivery port of HPW be the high pressure mouth of a river by pressure duct respectively with the development machine cutting head on the water under high pressure water inlet and the high-pressure water inlet of water-hydraulic coupling autobalance be connected, the duct of water under high pressure water inlet on the cutting head by processing respectively be installed in seal groove in the end that encloses of rotation lattice communicate, an other end of water-hydraulic coupling autobalance is that the hydraulic port place is provided with two interfaces, an interface links to each other with low opening pressure one way valve with repairing by pipeline, one way valve and fuel tank or other repairings and oil storage equipment UNICOM, the another one interface is connected with equilibrium pressure oil-in on being located at cutting head by fluid pressure line, the duct of pressure oil inlet by processing respectively be installed in seal groove in the rotation lattice non-tight water side of enclosing communicate.
Described water-hydraulic coupling autobalance is by the cylinder barrel that processes inner surface, piston, sealing ring, end cap constitutes, the hydraulic oil that equates with water under high pressure pressure of handle is squeezed into the non-tight water side of Ge Laiquan automatically, play the effect of eliminating pressure reduction, its concrete technical scheme is: the piston that sealing ring is housed is installed in the cylinder barrel that processes inner surface that cooperates with it, the sealed cavity that cylinder barrel is divided into two isolation, piston can slide in cylinder barrel simultaneously, and end cap seals the two ends, the left and right sides of cylinder barrel respectively and links to each other with balance pressure oil inlet with high-pressure water inlet by pipeline respectively.The pressure of high-pressure hydraulic pump acts on the piston by pipeline, and piston until the stop motion of pressure at two ends dummy piston, keeps the pressure balance at two ends to the hydraulic oil of opposite side motion and then compression opposite side constantly.
Compared with prior art, the invention has the beneficial effects as follows:
1, the pressure reduction at potted component two ends in the energy autobalance Internal Spraying System of Driving Machinrey, improved the sealing performance of sealing ring, prevent that profit from mixing generation, reduce even stopped and improve the reliability of complete machine because high pressure water system is revealed the possibility for the serious harm of complete machine.
2, the hydro-cushion sealing system of Cai Yonging in autobalance hydraulic pressure, also plays self-lubricated effect to rotating seal ring and counterrotating mechanical part, can improve the application life of sealing ring and each parts greatly.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of high pressure water hydraulic pressure balanced sealing system
Fig. 2 is the structure enlarged drawing of I place view among Fig. 1
Fig. 3 is the structure chart of water-hydraulic coupling autobalance
The specific embodiment
As Fig. 1, shown in 3, the delivery port of HPW water pump 4 (the WP mouth among the figure) be the high pressure mouth of a river by water under high pressure pipeline 3 respectively with the development machine cutting head on water under high pressure water inlet 2 and the high-pressure water inlet 52 of water-hydraulic coupling autobalance 5 be connected, water under high pressure water inlet on the cutting head encloses an end of 1 with two or more rotation lattice that are installed in the seal groove respectively by the duct of processing and communicates, an other end of water-hydraulic coupling autobalance 5 is provided with two interfaces, an interface repairing mouth 57 links to each other with low opening pressure one way valve 6 with repairing by pipeline, one way valve 6 and fuel tank or other repairings and oil storage equipment UNICOM, another one interface equilibrium pressure hydraulic fluid port 58 is connected with equilibrium pressure oil-in 8 on being located at cutting head by fluid pressure line 7, the duct of pressure oil inlet by processing respectively be installed in seal groove in the rotation lattice enclose 1 non-tight water side and communicate.
As shown in Figure 2, the described processing duct that communicates with the water under high pressure water inlet is that middle processing of groove that the rotation lattice enclose is being installed, and the cannelure by a processing communicates with the side that two rotation lattice enclose, the equilibrium pressure oil-in also is to enclose with the rotation lattice by the duct of processing to be connected, enclose and separate by the rotation lattice between the processing duct of this duct and water under high pressure, and the cannelure by processing links to each other, and has so just guaranteed that equilibrium pressure oil can act on the rotation lattice and enclose an other side of bearing water under high pressure.
As shown in Figure 1, during system works, at first the HPW water pump begins to provide water under high pressure to the development machine cutting head, the groove binding of the pressure of water under high pressure by water under high pressure pipeline and processing is in the rotation lattice that seal one sides of enclosing, also acted on simultaneously a side of water-hydraulic coupling autobalance by the water under high pressure pipeline, water-hydraulic coupling autobalance is balance hydraulic pressure automatically, and then in pipeline, provide the hydraulic oil that equates with water under high pressure pressure by an other end, hydraulic oil is by pipeline and act on the equilibrium pressure oil port, and then passing hole channel acts on the rotation lattice non-tight water side of enclosing with balance hydraulic pressure, keeping the pressure reduction of rotation lattice Lai Quan both sides is zero, when the pressure of water pump because load variations or other reasons when changing, because the assurance hydraulic pressure that the interaction energy of profit-hydraulic coupling autobalance is real-time and the balance of hydraulic pressure pressure, thereby the reliability of assurance sealing.The effect of low opening pressure one way valve 6 is to reduce suddenly at hydraulic pressure among Fig. 1, when oil pressure increases relatively, can be automatically prevents to produce negative pressure and cavitates to the repairing of oil pressure side.
As shown in Figure 3, foregoing water-hydraulic coupling autobalance 5 is by the cylinder barrel 53 that processes inner surface, end cap 51, high-pressure water inlet 52, piston 54, sealing ring 55, end cap 56, repairing mouth 57 and balance pressure oil mouth 58 constitute, its function is that the hydraulic oil that equates with water under high pressure pressure of handle is squeezed into the non-tight water side of Ge Laiquan automatically, play the effect of eliminating pressure reduction, the piston 54 that sealing ring 55 is housed is installed in the cylinder barrel that processes inner surface 53 that cooperates with it, the sealed cavity that cylinder barrel is divided into two isolation, one side cavity leads to water under high pressure, an other side is led to hydraulic oil, and piston 54 can be free to slide in cylinder barrel 53 simultaneously.The pressure of high-pressure hydraulic pump acts on the piston by pipeline, and piston until the stop motion of pressure at two ends dummy piston, keeps the pressure balance at two ends to the hydraulic oil of opposite side motion and then compression opposite side constantly.
Claims (2)
1. high pressure water hydraulic pressure balanced sealing system of development machine, comprise HPW hydraulic-driven high-pressure hydraulic pump, the rotation lattice come sealing ring, it is characterized in that: the hydraulically powered high-pressure hydraulic pump delivery port of HPW be the high pressure mouth of a river by pressure duct respectively with the development machine cutting head on the water under high pressure water inlet and the high-pressure water inlet of water-hydraulic coupling autobalance be connected, the duct of water under high pressure water inlet on the cutting head by processing respectively be installed in seal groove in the end that encloses of rotation lattice communicate, an other end of water-hydraulic coupling autobalance is that the hydraulic port place is provided with two interfaces, an interface links to each other with low opening pressure one way valve with repairing by pipeline, one way valve and fuel tank or other repairings and oil storage equipment UNICOM, the another one interface is connected with equilibrium pressure oil-in on being located at cutting head by fluid pressure line, the duct of pressure oil inlet by processing respectively be installed in seal groove in the rotation lattice non-tight water side of enclosing communicate.
2. according to the described high pressure water hydraulic pressure balanced sealing system of development machine of claim 1, it is characterized in that: described water-hydraulic coupling autobalance is by the cylinder barrel that processes inner surface, piston, sealing ring, end cap constitutes, the piston that sealing ring is housed is installed in the cylinder barrel that processes inner surface that cooperates with it, cylinder barrel is divided into the sealed cavity of two isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102294112A CN101749015B (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic pressure balanced sealing system of development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102294112A CN101749015B (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic pressure balanced sealing system of development machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749015A true CN101749015A (en) | 2010-06-23 |
| CN101749015B CN101749015B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102294112A Expired - Fee Related CN101749015B (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic pressure balanced sealing system of development machine |
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| Country | Link |
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| CN (1) | CN101749015B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508618A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Multilevel-redundancy main shaft seal system |
| CN108457647A (en) * | 2017-02-18 | 2018-08-28 | 刘素华 | Implementing cam sleeve line shaft drives the cam sleeve line shaft of the method for hollow cam sleeve rotation to drive hollow cam sleeve impingement box |
| CN109958436A (en) * | 2019-05-10 | 2019-07-02 | 沈阳劲通机械制造有限公司 | A kind of pars contractilis internal spraying water system of development machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3634290A1 (en) * | 1986-10-08 | 1988-04-21 | Eickhoff Geb | Cutting drum equipped with a rotary transmission leadthrough, in particular for machines in underground mining |
| DE4227584C2 (en) * | 1992-08-20 | 1996-05-30 | Freier Fritz Fa | Axial rotary feedthrough with leakage space |
| CN201148874Y (en) * | 2007-12-26 | 2008-11-12 | 三一重型装备有限公司 | Inner spray sealing device of development machine |
| CN201149080Y (en) * | 2007-12-28 | 2008-11-12 | 三一重型装备有限公司 | Rotary sealing device with water seal at exterior |
| CN201306169Y (en) * | 2008-12-09 | 2009-09-09 | 沈阳矿山机械有限公司 | High pressure water hydraulic balancing and sealing system of development machine |
-
2008
- 2008-12-09 CN CN2008102294112A patent/CN101749015B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508618A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Multilevel-redundancy main shaft seal system |
| CN105508618B (en) * | 2016-01-11 | 2017-10-13 | 东方电气集团东方电机有限公司 | A kind of spindle seal system of multilevel redundancy |
| CN108457647A (en) * | 2017-02-18 | 2018-08-28 | 刘素华 | Implementing cam sleeve line shaft drives the cam sleeve line shaft of the method for hollow cam sleeve rotation to drive hollow cam sleeve impingement box |
| CN108457647B (en) * | 2017-02-18 | 2023-12-05 | 刘素华 | Hollow cam sleeve impact box |
| CN109958436A (en) * | 2019-05-10 | 2019-07-02 | 沈阳劲通机械制造有限公司 | A kind of pars contractilis internal spraying water system of development machine |
| CN109958436B (en) * | 2019-05-10 | 2024-04-12 | 沈阳劲通机械制造有限公司 | Spray water system in telescopic part of heading machine |
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| Publication number | Publication date |
|---|---|
| CN101749015B (en) | 2011-08-17 |
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Granted publication date: 20110817 Termination date: 20181209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |