CN203847487U - Hydraulic system used for flushing bearing of hydraulic plunger pump - Google Patents
Hydraulic system used for flushing bearing of hydraulic plunger pump Download PDFInfo
- Publication number
- CN203847487U CN203847487U CN201420263281.5U CN201420263281U CN203847487U CN 203847487 U CN203847487 U CN 203847487U CN 201420263281 U CN201420263281 U CN 201420263281U CN 203847487 U CN203847487 U CN 203847487U
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- hydraulic
- oil
- plunger pump
- pump
- pressure
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Abstract
The utility model discloses a hydraulic system used for flushing a bearing of a hydraulic plunger pump. Hydraulic oil outputted by a circulating filtration pump is in two oil ways after flowing through a first one-way valve, a filter and an outlet of a cooler, the hydraulic oil in one oil way flows back to an oil tank after flowing through a second one-way valve, the hydraulic oil in the other oil way flows back to the oil tank from an L port of the hydraulic plunger pump after flowing through a U port of the hydraulic plunger pump, a first pressure gauge is used for detecting pressure for circularly flushing an oil way system, a second pressure gauge is used for detecting system pressure of a high-pressure plunger pump outlet, a pilot overflow valve serves as a safety valve of a high-pressure plunger pump system, and a third one-way valve is used for preventing oil backflow caused by overload. The hydraulic system used for flushing the bearing of the hydraulic plunger pump has the advantages that use temperature of the spindle bearing of the hydraulic plunger pump is lowered, and oil leakage at a sealing ring position of a spindle frame is prevented effectively by flushing metallic particle contaminants in a hydraulic plunger pump shell, so that service life of the pump is prolonged. Moreover, the hydraulic system used for flushing the bearing of the hydraulic plunger pump is simple, compact and reliable in piping structure, initial invested cost of equipment is lowered, and long-term operating cost of the system is saved.
Description
Technical field
The utility model relates to a kind of hydraulic system of rinsing for hydraulic plunger pump bearing, this system has been specially adapted to apply the high-pressure hydraulic of hydraulic planger pump, system can be reduced use the serviceability temperature of the in-built main shaft bearing of hydraulic planger pump, contaminant metals particle in flushing of hydraulic plunger pump case, the working life of improving hydraulic planger pump.
Background technique
What select in the high-pressure hydraulic major part of the industries such as metallurgical industry, national defense industry, machine tool industry, shipping industry and the industry of shield structure is hydraulic planger pump, wearing and tearing between three pairs of parts with frication pair of the relative movement that hydraulic planger pump is in operation, gap between part is increased, pump internal leakage increases thereupon, oil temperature is corresponding rising also, reduce hydraulic pressure oil viscosity, increased the risk of leakage of hydraulic planger pump.The large parts with frication pair high-speed friction of in hydraulic planger pump pump case three is rotated, when metal surface relative movement, metal and metal produce contact friction, there is bonding and cutting, and due to localized hyperthermia, cause the fatigue flake of large scale metal oxide particle, because discharging, pump case is outer to be accumulated in hydraulic pump body the metal granule peeling off.Because pump case is full of hydraulic oil, the rotation with pump main shaft and cylinder body mixed in together of the metal granule of deposition and hydraulic oil, again in the drift of housing inward eddy, causes the unstable wear of pump inner bearing.After bearing wear to a certain extent, play increases, bearing clearance increases after the rotating accuracy reduction of rear bearing, cannot ensure the relative movement precision of cylinder body and thrust plate, therefore destroy again pump three to the hydrostatic balance between friction pair, three pairs of destroyed friction pairs again can accelerated wear test.
The problem such as cannot discharge in order to solve metal granule that the hydraulic plunger pump case inner product of online use deposits, each hydraulic planger pump producer that produces is designed with and is exclusively used in the U mouth that rinses bearing at hydraulic planger pump, utilize and rinse fluid through U mouth flushing main shaft bearing, and rinse residual metal granule in pump case.Be designed with and be exclusively used in the U mouth that rinses bearing at hydraulic planger pump although respectively produce hydraulic planger pump producer, need designer to design the hydraulic system of the flushing fluid that is incorporated into U mouth.
In the Chinese utility model patent of number of patent application 201120375775.0, mention a kind of auto-flushing high pressure bearing plunger pump, adopt the high pressure oil outlet of plunger pump to draw an oil circuit access pump main body rinse mouth, the requirement of the far super hydraulic plunger pump case of the high pressure oil pressure internal pressure 0.2MPa drawing from pump discharge.
The flushing fluid of current known high-pressure and hydraulic plunger pump U mouth adopts independently hydraulic pressure rinse-system, the pipeline relative complex of this system, and the equipment initial stage drops into long-time running cost higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of hydraulic system of rinsing for hydraulic plunger pump bearing is provided.
Comprise and be circulated throughout filter pump, direct-acting overflow valve, the first one-way valve, filter, the first pressure gauge, cooler, the second one-way valve, hydraulic planger pump, pilot operated compound relief valve, the second pressure gauge, the 3rd one-way valve, fuel tank for the hydraulic system of hydraulic plunger pump bearing flushing; The hydraulic oil that is circulated throughout filter pump output is divided into two oil circuits through the outlet of the first one-way valve, filter and cooler,, oil circuit oil sump tank after the second one-way valve, another oil circuit is after the U of hydraulic planger pump mouth, from the L mouth oil sump tank of hydraulic planger pump, the first pressure gauge is for detection of the pressure of circulation flushing oil-way system, the second pressure gauge is for detection of the system pressure of high-pressure plunger pump discharge, pilot operated compound relief valve is as the safety valve of high-pressure plunger pumping system, and for prevention, because load overloads, caused fluid flows backwards the 3rd one-way valve.
Beneficial effect described in the utility model is: from circulating filtration hydraulic system, draw the flushing fluid of a bypass hydraulic branch as hydraulic planger pump U mouth, effectively reduce the serviceability temperature of hydraulic planger pump main shaft bearing, contaminant particle in flushing of hydraulic plunger pump case, improve the working life of hydraulic planger pump, and pipeline structure is simple, compact, reduce equipment initial stage input cost, and extended the long-term operating cost of system.
Brief description of the drawings
Fig. 1 is the hydraulic system principle figure that hydraulic plunger pump bearing rinses;
Fig. 2 is mark U oral fluid hydraulic plunger pump outline drawing of the present utility model;
Fig. 3 is mark L oral fluid hydraulic plunger pump outline drawing of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As Figure 1-3, comprise and be circulated throughout filter pump 1, direct-acting overflow valve 2, the first one-way valve 3, filter 4, the first pressure gauge 5, cooler 6, the second one-way valve 7, hydraulic planger pump 8, pilot operated compound relief valve 9, the second pressure gauge 10, the 3rd one-way valve 11, fuel tank 12 for the hydraulic system of hydraulic plunger pump bearing flushing; Be circulated throughout the hydraulic oil that filter pump 1 exports and be divided into two oil circuits through the outlet of the first one-way valve 3, filter 4 and cooler 6,, oil circuit oil sump tank 12 after the second one-way valve 7, another oil circuit is after the U of hydraulic planger pump 8 mouth, from the L mouth oil sump tank of hydraulic planger pump 8, the first pressure gauge 5 is for detection of the pressure of circulation flushing oil-way system, the second pressure gauge 10 is for detection of the system pressure of high-pressure plunger pump discharge, pilot operated compound relief valve 9 is as the safety valve of high-pressure plunger pumping system, and for prevention, because load overloads, caused fluid flows backwards the 3rd one-way valve 11.
The hydraulic method rinsing for hydraulic plunger pump bearing is: the highest withstand voltage pressure of hydraulic planger pump 8 main shaft rotary seals place is 0.3MPa, when the hydraulic system of rinsing for hydraulic plunger pump bearing is rinsed, must ensure that hydraulic plunger pump case internal pressure must not exceed 0.2MPa, if the pressure in hydraulic plunger pump case exceedes 0.2MPa, hydraulic oil in housing is very easily from the motive sealing leakage fluid force feed between backbone sealing ring and main shaft: the spring setting pressure of the second one-way valve 7 is the pressure that 0.2MPa ensures circulated filter system, and be incorporated into the pressure at the U mouth place of hydraulic planger pump 8.The U mouth of hydraulic planger pump 8 is to the contaminant metals particle accumulating in the low-pressure washing fluid of the L mouth of hydraulic planger pump 8 can exudate hydraulic plunger pump 8 shells.Meanwhile, the U mouth of hydraulic planger pump 8 has taken away to the low-pressure washing fluid of the L mouth of hydraulic planger pump 8 heat that high-pressure plunger pump 8 produces in high-voltage operation process.
The setting pressure of described direct-acting overflow valve 2 is 0.6MPa, and the setting pressure of pilot operated compound relief valve 9 is 29MPa, and the cracking pressure of the second one-way valve 7 is 0.2MPa.Be circulated throughout the dynamical element of filter pump 1 as circulated filter system, direct-acting overflow valve 2 is as the safety valve of circle irrigation system.The back pressure that the spring of the second one-way valve 7 produces is rinsed the setting pressure of fluid as hydraulic planger pump.
Claims (1)
1. a hydraulic system of rinsing for hydraulic plunger pump bearing, is characterized in that comprising being circulated throughout filter pump (1), direct-acting overflow valve (2), the first one-way valve (3), filter (4), the first pressure gauge (5), cooler (6), the second one-way valve (7), hydraulic planger pump (8), pilot operated compound relief valve (9), the second pressure gauge (10), the 3rd one-way valve (11), fuel tank (12), be circulated throughout the hydraulic oil of filter pump (1) output through the first one-way valve (3), the outlet of filter (4) and cooler (6) is divided into two oil circuits, , oil circuit oil sump tank (12) after the second one-way valve (7), another oil circuit is after the U mouth of hydraulic planger pump (8), from the L mouth oil sump tank of hydraulic planger pump (8), the first pressure gauge (5) is for detection of the pressure of circulation flushing oil-way system, the second pressure gauge (10) is for detection of the system pressure of high-pressure plunger pump discharge, pilot operated compound relief valve (9) is as the safety valve of high-pressure plunger pumping system, for prevention, because load overloads, caused fluid flows backwards the 3rd one-way valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263281.5U CN203847487U (en) | 2014-05-22 | 2014-05-22 | Hydraulic system used for flushing bearing of hydraulic plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263281.5U CN203847487U (en) | 2014-05-22 | 2014-05-22 | Hydraulic system used for flushing bearing of hydraulic plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847487U true CN203847487U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420263281.5U Expired - Fee Related CN203847487U (en) | 2014-05-22 | 2014-05-22 | Hydraulic system used for flushing bearing of hydraulic plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN203847487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967872A (en) * | 2014-05-22 | 2014-08-06 | 浙江德泰机电工程有限公司 | Hydraulic system and method for hydraulic plunger pump bearing flushing |
| CN112024494A (en) * | 2020-07-08 | 2020-12-04 | 西安航空制动科技有限公司 | Cylinder seat cleaning method for airplane brake device |
-
2014
- 2014-05-22 CN CN201420263281.5U patent/CN203847487U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967872A (en) * | 2014-05-22 | 2014-08-06 | 浙江德泰机电工程有限公司 | Hydraulic system and method for hydraulic plunger pump bearing flushing |
| CN103967872B (en) * | 2014-05-22 | 2016-04-13 | 浙江德泰机电工程有限公司 | A kind of hydraulic system for the flushing of hydraulic plunger pump bearing and method thereof |
| CN112024494A (en) * | 2020-07-08 | 2020-12-04 | 西安航空制动科技有限公司 | Cylinder seat cleaning method for airplane brake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20160522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |