CN201306169Y - High pressure water hydraulic balancing and sealing system of development machine - Google Patents
High pressure water hydraulic balancing and sealing system of development machine Download PDFInfo
- Publication number
- CN201306169Y CN201306169Y CN 200820231314 CN200820231314U CN201306169Y CN 201306169 Y CN201306169 Y CN 201306169Y CN 200820231314 CN200820231314 CN 200820231314 CN 200820231314 U CN200820231314 U CN 200820231314U CN 201306169 Y CN201306169 Y CN 201306169Y
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- pressure
- high pressure
- water
- sealing ring
- hydraulic
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Abstract
The utility model relates to a high pressure water hydraulic balancing and sealing system of a development machine; the problem needed to be solved is as follows: the high pressure water of an inner spraying system of the development machine is directly sealed by a rotary glyd ring; because the sealing ring has quite poor capability in sealing the high pressure in the rotating state, the reliability of the sealing ring in actual use is quite low, oil and water are mixed, and great damage is brought to the mechanical part of the machine. The main points are as follows: pressure which is automatically balanced with the high pressure water is added on the non-seal high pressure water side of the rotary sealing ring, so that the rotary sealing ring is in the working status of zero differential pressure, so as to greatly improve the sealing capability of the sealing ring and the reliability of the whole machine. Meanwhile, the rotary sealing ring and mechanical parts which relatively rotate are automatically lubricated, and the service life of the sealing ring and all the parts can be greatly prolonged.
Description
Technical field
The utility model relates to a kind of high pressure water hydraulic pressure balanced sealing system of development machine, and 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 purpose of this utility model 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 purpose of this utility model is achieved in that 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 beneficial effects of the utility model are:
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 utility model 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, a kind of 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 |
|---|---|---|---|
| CN 200820231314 CN201306169Y (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic balancing and sealing system of development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820231314 CN201306169Y (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic balancing and sealing system of development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306169Y true CN201306169Y (en) | 2009-09-09 |
Family
ID=41098635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820231314 Expired - Lifetime CN201306169Y (en) | 2008-12-09 | 2008-12-09 | High pressure water hydraulic balancing and sealing system of development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306169Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749015B (en) * | 2008-12-09 | 2011-08-17 | 沈阳矿山机械有限公司 | High pressure water hydraulic pressure balanced sealing system of development machine |
| CN103511402A (en) * | 2012-06-18 | 2014-01-15 | 中国航空工业集团公司西安飞机设计研究所 | Method for preventing hydraulic lock and special pressure balance device for preventing hydraulic lock |
-
2008
- 2008-12-09 CN CN 200820231314 patent/CN201306169Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749015B (en) * | 2008-12-09 | 2011-08-17 | 沈阳矿山机械有限公司 | High pressure water hydraulic pressure balanced sealing system of development machine |
| CN103511402A (en) * | 2012-06-18 | 2014-01-15 | 中国航空工业集团公司西安飞机设计研究所 | Method for preventing hydraulic lock and special pressure balance device for preventing hydraulic lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090909 Effective date of abandoning: 20081209 |