CN2079226U - Ultrahigh-pressure valve type flow distribution axial plunger pump - Google Patents
Ultrahigh-pressure valve type flow distribution axial plunger pump Download PDFInfo
- Publication number
- CN2079226U CN2079226U CN 90213862 CN90213862U CN2079226U CN 2079226 U CN2079226 U CN 2079226U CN 90213862 CN90213862 CN 90213862 CN 90213862 U CN90213862 U CN 90213862U CN 2079226 U CN2079226 U CN 2079226U
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- China
- Prior art keywords
- valve
- oil
- pump
- spring
- ultrahigh
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an ultrahigh-pressure valve type flow distribution axial plunger pump. The utility model is suitable for being used as a motive power element of hydraulic systems with pressure within 63-100MPa. The utility model is formed by improving the key parts of pumps existing in the prior through optimization design. A flat valve structure is adopted by an oil inlet valve which is composed of an oil inlet screw, a holder, a fixed conical spring, and a valve plate. A plunger is provided with an oil outlet valve seat, and the oil outlet valve is composed of an oil outlet valve screw, a compression spring, a steel ball, and the oil outlet valve seat. The oil filter screen is connected with the pump body by a spring retainer for holes and a spring retainer for shafts. An oil filter does not need to be added in addition. The utility model provides an ideal power element for ultrahigh-pressure hydraulic systems.
Description
The utility model relates to a kind of ultrahigh pressure axial piston pump, is specially adapted to use as dynamical element in the Superhigh Pressure Hydraulic System that pressure is 63～100MPa.It is 100MPa that this pump can form serial rated pressure, and discharge capacity is 0.4～6ml/r.
100MPa pressure level ultrahigh pressure axial piston pump, China does not also form series now.Several 100MPa pressure level axial piston pumps of domestic production, ubiquity that flow is little, the life-span is low, and suction capacity is poor, and efficient is low, standardization level is not high, and particularly power/volume density is little, problem such as can not level install and use.Because existing pump adopts ball-valve structure more, dead volume is big, and ball valve inertia is big, and it is big to cross flow resistance, thereby the responsiveness of pump is slow, and suction capacity is little, and volumetric efficiency is low.Because the pump housing of existing pump is the separated type pump housing, cause the coaxality of bearing to be difficult for guaranteeing again, reduced the mechanical efficiency of pump, increased the noise of pump, the life-span of having limited pump.
Task of the present utility model is exactly to improve the deficiency that said pump exists, and makes it complete in specifications, and is simple in structure, good manufacturability, and function admirable, easy to install, for extra high voltage system provides a kind of desirable dynamical element.
Task of the present utility model is finished as follows, shortcoming at original ultrahigh pressure axial piston pump, suction there is not valve, draining valve, plunger is paid, structures such as the pump housing and bearing distribution have been done improvement, oil sucting valve changes the flap type structure into, because valve block is in light weight than the ball valve steel ball, so inertia is little, dead volume is less in addition, improved the responsiveness of pump, reduced valve block and lagged behind to the influence of volumetric efficiency, improved the volumetric efficiency of pump, it is little that this flap type of while is crossed flow resistance than ball valve, improved the suction capacity of pump, between valve block and retainer, add volute spring, make valve block work balance, reduced hydraulic vibration and noise, and pump can substantially horizontal be installed and used, the draining valve valve seat directly leaves on plunger bushing, has not only reduced the dead volume of pump widely, has improved volumetric efficiency, reduce sealing together than original structure simultaneously, dwindled the radial dimension of pump.The pump housing adopts overall structure, is easy to keep coaxality, improves the mechanical efficiency of pump, reduces mechanicalness noise, and overall structure pump housing axial dimension precision is easy to guarantee simultaneously, helps reducing of dead volume.This kind pump has added oil cleaner screen in pump, when installing and using, do not need to add oil screen again.
This kind pump also has following distinguishing feature except that having These characteristics, contain the standard piece rate up to 60%.The part system reaches 90% with rate in addition, and giving production management and reducing cost provides good condition.Variable product inventory is zero, parts stock.Assemble according to the market demand.
The concrete structure of model utility is provided by following examples and accompanying drawing.
Fig. 1 is a partial cutaway schematic of the present utility model.
Fig. 2 is that master of the present utility model looks generalized section.
With reference to Fig. 2, (1) pump shaft, (2) flat key, (3) hexagon socket head cap screw, (4) outside framework oil seal, (5) pump cover, (6) bearing, (7) hexagon socket head cap screw, (8) compression spring, (9) bearing, (10) pump housing, (11) bearing, (12) plunger, (13) plunger bushing, (14) spring, (15) compression spring, (16) bearing, (17) steel pad I, (18) steel ball, (19) spring, (20) outlet valve spiral shell, (21) copper packing, (22) valve block, (23) volute spring, (24) retainer, (25) steel pad II (26) 6) " O " RunddichtringO, (27) back-up ring, (28) oiling valve spiral shell, (29) oil cleaner screen, (30) axle check ring, (31) internal circlip, (32) sealing cover, (33) " O " shape seal ring, (34) hexagon socket head cap screw, (35), (36), (37) screw plug, (38) " O " shape seal ring, (39) label.
The pump housing (10) is the 2G45 Cast Steel, plays the body effect, is used for supporting and connects each part, connects oil circuit.Plunger (12) is by the GCr15 steel, live plug sleeve (13) by the 40Cr steel, (12), (13) forming plunger pays, plunger is paid and is installed in the equally distributed hole of the pump housing, spring I (14) carbon steel wire system, compression spring (15) 45 steels, pump shaft (1) is by the 40Cr steel, when prime mover drives the transmission shaft rotation, under pump shaft swash plate and spring I (14) compression spring (15) acting in conjunction, make plunger (12) produce to-and-fro motion, steel pad I (17) steel pad II (25) is made by the 08F steel, is used for plunger bushing, the sealing of lower end surface, flat key (2) standard piece, be installed on and connect prime mover in the keyway of pump shaft (1), bearing (16) bearing (9) standard piece is used for the radial support power of balance pump shaft (1), bearing (16) is a stuffing box bearing simultaneously, after liquid level descended, assurance pump chamber inner fluid is not let out down, and was lubricated, cooling plunger head and bearing (11) be friction and each bearing of circle down.Bearing (11) bearing (16) standard piece plays axially mounting to pump shaft, and pump cover (5) 45 steels are used for balancing axial thrust, adds round section joint ring (38) sealing when pump uses outside oil box, and outside framework oil seal (4) prevents that the pump inner fluid from leaking outside.Hex head bolt (3), (7) standard piece are used to connect the pump housing and pump cover and pump and flange, compression spring (9) standard piece, play the screw retention effect, steel ball (18) standard piece, spring (19) 65Nn steel, valve port on outlet valve spiral shell 45 steels and the plunger bushing (13) is formed draining valve, and steel pad II (25) standard piece is used for the sealing between the outlet valve spiral shell and the pump housing.
With reference to accompanying drawing 1, oil sucting valve is by valve block (22) 100Cr6 steel, volute spring (23) IIDIN2076 steel, and retainer (24) X5Cri18, DIN1541 steel and oiling valve spiral shell (28) 40Cr steel are formed, " O " seal ring (26) standard piece.Back-up ring (27) standard piece is used for the sealing between the oiling valve spiral shell (28) and the pump housing, axle check ring (30) standard piece, and internal circlip (31) standard piece is used for fixing oil cleaner screen (29).Sealing cover (32) 45 steels, with round section joint ring (33) standard piece, bolt (34) standard piece acting in conjunction, when being used for the pump housing and outside oil box, using, sealing fluid and connection oil inlet pipe, screw plug (35), screw plug (36), screw plug (37) igelite system are used for the sealing of hydraulic fluid port.During external use, sealing fluid and connect oil inlet pipe, screw plug (35), screw plug (36), screw plug (37) igelite system are used for the sealing of hydraulic fluid port.
Claims (1)
- A kind of ultrahigh-pressure valve type fluid-distributing axial plunger pump, by being installed in oil-feed spiral shell (28) on the pump housing (10), retainer (24), the fixing oil-feed spiral shell formed of volute spring (23), valve block (22), the oil cleaner screen that the draining valve that outlet valve spiral shell (20), pressure spring (19), plunger bushing (13), steel ball (18) are formed and one form with spring flange (31), oil cleaner screen (29) with check ring (30), a hole is whole and by the oily device of turnover that oiling valve, draining valve, oil cleaner screen constitute, and it is characterized in that:A, the position that keeps volute spring (23) and valve block (22) by retainer (24), and itself and the pump housing (10) are installed on one by oil-feed spiral shell (28), the formation oil sucting valve,B, delivery valve seat are opened on plunger (13), by outlet valve spiral shell (20) and pressure spring (19) steel ball (18) are pressed on the valve seat, constitute draining valve,C, by one with check ring (30) and a hole with spring flange (31), oil cleaner screen (29) is fixed on the filler opening of the pump housing (10),D, by oil cleaner screen, oiling valve and draining valve are formed the turnover oil device of one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213862 CN2079226U (en) | 1990-05-30 | 1990-05-30 | Ultrahigh-pressure valve type flow distribution axial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90213862 CN2079226U (en) | 1990-05-30 | 1990-05-30 | Ultrahigh-pressure valve type flow distribution axial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2079226U true CN2079226U (en) | 1991-06-19 |
Family
ID=4893299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90213862 Expired - Lifetime CN2079226U (en) | 1990-05-30 | 1990-05-30 | Ultrahigh-pressure valve type flow distribution axial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2079226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147952A (en) * | 2013-03-19 | 2013-06-12 | 佛山华液动力科技有限公司 | Ultrahigh pressure axial plunger oil pump |
| CN104234966A (en) * | 2013-06-20 | 2014-12-24 | 扬州市宝元机械制造有限公司 | Hydraulic pump |
| CN109798231A (en) * | 2019-03-22 | 2019-05-24 | 哈尔滨工业大学 | A kind of inclined disc type Small Plunger Pump |
-
1990
- 1990-05-30 CN CN 90213862 patent/CN2079226U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147952A (en) * | 2013-03-19 | 2013-06-12 | 佛山华液动力科技有限公司 | Ultrahigh pressure axial plunger oil pump |
| CN103147952B (en) * | 2013-03-19 | 2016-04-20 | 广东华液动力科技有限公司 | A kind of ultrahigh pressure axial plunger oil pump |
| CN104234966A (en) * | 2013-06-20 | 2014-12-24 | 扬州市宝元机械制造有限公司 | Hydraulic pump |
| CN109798231A (en) * | 2019-03-22 | 2019-05-24 | 哈尔滨工业大学 | A kind of inclined disc type Small Plunger Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |