CN202833001U - Swash plate type rotary valve flow distributing pure water plunger pump - Google Patents

Swash plate type rotary valve flow distributing pure water plunger pump Download PDF

Info

Publication number
CN202833001U
CN202833001U CN 201220499454 CN201220499454U CN202833001U CN 202833001 U CN202833001 U CN 202833001U CN 201220499454 CN201220499454 CN 201220499454 CN 201220499454 U CN201220499454 U CN 201220499454U CN 202833001 U CN202833001 U CN 202833001U
Authority
CN
China
Prior art keywords
valve
cover
cylinder
disc
plunger
Prior art date
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 - Fee Related
Application number
CN 201220499454
Other languages
Chinese (zh)
Inventor
聂松林
张坤生
尹方龙
喻国哲
董武涛
申凤梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Technology
Original Assignee
Beijing University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN 201220499454 priority Critical patent/CN202833001U/en
Application granted granted Critical
Publication of CN202833001U publication Critical patent/CN202833001U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a pump, in particular to a swash plate type rotary valve distributing pure water plunger pump. The swash plate type rotary valve distributing pure water plunger pump comprises a main shaft, a front end cover, a swash plate, a return trip plate, a spherical hinge, sliding shoes, a plunger, a cylinder body, a suction valve, a discharge valve, a valve disc, a cover plate, a back end cover and a shell body. The cylinder body and the valve disc are driven to ratate by the main shaft through splines, the swash plate is fixed on the front end cover and relatively static, flow distributing is achieved through the suction valve and the discharge valve, radial forces of the cylinder body and the valve disc are born together by a front end bearing of the front end cover and a big bearing pressed into the shell body in an interference mode outside the cylinder body, and values of pressure and velocity (PV) born by each sliding bearing is reduced. A flow distributing disc is replaced by a flow distributing valve, a key friction pair is reduced, because the flow distributing valve is good in tightness, high volume efficiency can be achieved in a valve type pump at a high pressure. A main water inlet channel is arranged along the axis of the main shaft, an enclosed space is formed by the main water inlet channel and a branch water inlet channel, influence of water absorbing capacity of a water pump by rotation of the cylinder body and the valve disc is greatly reduced.

Description

Inclined disc type rotary valve flow pure water plunger pump
Technical field
The utility model belongs to the pump class, is specifically related to a kind of inclined disc type rotary valve flow pure water plunger pump.
Background technique
Hydraulic pamp is dynamical element and the core parts of hydraulic pressure system, therefore its design and researchp is had and important meaning.The structural type of hydraulic pamp mainly comprises plunger type, blade type, gear type, and the sealing effect of blade type and gear type hydraulic pamp is poor, and volumetric efficiency is low, leaks serious in the situation that working pressure improves.The crucial friction pair of three couples of plunger pump structure commonly used comprises plunger and cylinder hole, piston shoes and swash plate, thrust plate and cylinder body end face, it all is the face contact, therefore sealing effect is relatively better, can guarantee higher volumetric efficiency under the operating mode of and low viscosity medium higher in pressure ratio, and with respect to blade type and gear type hydraulic pamp, friction pair has lower PV value.Therefore, existing water pump has adopted the structure of plunger type mostly.
The water pump of plunger-type structure can be divided into axial piston structure and radial plunger type structure according to the arrangement of plunger.The specific power of radial mode plunger pump is large, and is subjected to the restriction in circumferential arrangement space, only is used for the occasion of low speed high torque; The Water Hydraulic Pump of axial piston structure has reduced wearing and tearing and the power loss of friction pair, and is particularly important for Water Hydraulic Pump, because the greasy property extreme difference of aqueous medium is difficult to form the elastohydrodynamic lubrication effect between friction pair.Therefore most of plunger pump adopts the axial piston structure.
Its flow mode of the water pump of plunger-type structure comprises valve plate distribution, axle flow, three kinds of valve flows.Valve plate distribution relies on thrust plate that hyperbaric chamber and low-pressure cavity are separated, the friction pair that valve plate distribution and axle flow all exist a face contact, and owing to the impact of machining accuracy, this friction pair has leakage to a certain degree.And because the intrusion of environmental contaminants can produce wearing and tearing on the junction plane of friction pair, so that the gap of friction pair junction plane becomes large, the sealing effect variation is leaked and is strengthened.Under the high pressure operating mode, even the high and low pressure chamber is communicated with.Therefore, under the middle high-pressure operating mode, valve plate distribution and axle flow are difficult to higher volumetric efficiency.Strong and the good sealing effect of the water pump contamination resistance of valve flow also can guarantee high volumetric efficiency under the operating mode of high pressure.
Plunger pump generally has swash plate rotation and cylinder body rotation dual mode, and the plunger pump of swash plate rotation easily produces uneven rotation, causes Vibration Cylinder Body.The utility model has adopted swash plate to fix, the structural type of cylinder body and valve disc rotation, and the main intake tunnel on the valve disc is distributed in the main-shaft axis direction, has avoided because the suction that the rotation of cylinder body and valve disc causes foot phenomenon not.
The model utility content
The utility model provides a kind of inclined disc type rotary valve flow pure water plunger pump, and this pump can be issued to higher volumetric efficiency in the middle high-pressure operating mode, and more intense contamination resistance is arranged, and has avoided because the problem of the Vibration Cylinder Body that the swash plate rotation causes.
Concrete technological scheme is as follows: inclined disc type rotary valve flow pure water plunger pump comprises main shaft (1), front cover (6), housing (13), rear end cover (17), swash plate (35), piston shoes (34), plunger (33), cylinder body (10), valve disc (16), thrust bearing (23), cover plate (18), suction valve (11), delivery valve (26), return plate (36), ball pivot (37);
Front cover (6), housing (13), rear end cover (17) forms outside framework from left to right successively, internal structure from left to right is followed successively by front cover (6), swash plate (35), cylinder body (10), valve disc (16) and rear end cover (17), main shaft (1) runs through front cover (6) and swash plate (35) from left to right, main shaft (1) drives cylinder body (10) by spline and rotates, front cover (6) is fixedly connected with swash plate (35), be return plate (36) and ball pivot (37) between swash plate (35) and the cylinder body (10), cylinder body (10) is fixed together with valve disc (16), valve disc (16) rotates under the drive of cylinder body (10), and thrust bearing (23) and cover plate (18) are positioned between valve disc (16) and the rear end cover (17) from left to right successively;
Described cylinder body (10) is solid body, have a plurality of plunger cavities (28), be uniformly distributed along the circumference, plunger cavity (28) runs through cylinder body (10) vertically, plunger (33) is positioned at plunger cavity (28), cylinder body (10) has a plurality of valve pockets (12), the number of valve pocket (12) is identical with the number of plunger cavity (28), valve pocket (12) circumferentially evenly distributes along cylinder body (10), valve pocket (12) does not run through cylinder body (10) vertically, valve pocket (12) is built-in with suction valve (11), and the valve port of suction valve (11) is opened end valve dish (16) to the right; The unique corresponding plunger cavity of each valve pocket (12) (28), they are communicated with by curve bath; Described cylinder body (10) has spring eye (39), and spring eye (39) is built-in with spring and spring seat (40); The right-hand member of spring acts on the left side of valve disc (16), the left end of spring is installed on the spring seat (40), spring acts on the ball pivot (37) by spring seat (40), ball pivot (37) acts on the return plate (36), return plate (36) acts on the piston shoes (34), and piston shoes (34) are close on swash plate (35) inclined-plane;
Described valve disc (16) is solid body, have a plurality of valve pockets (27), be uniformly distributed along the circumference, valve pocket (27) does not connect vertically, the number of valve pocket (27) is identical with the number of plunger (33), valve pocket (27) is built-in with one-way valve, be delivery valve (26), the valve port of delivery valve (26) is opened newel post's consent (28) left, valve disc (16) is provided with main intake tunnel (20), main intake tunnel (20) axis and main shaft (1) dead in line, and connect valve disc (16), have many branch's intake tunnels (15) on the main intake tunnel (20), valve disc (16) is provided with a plurality of high pressure water exhalant canals (22), and each valve pocket (27) is communicated with a high pressure water exhalant canal (22); Valve disc (16) right-hand member afterbody has a step (19), and this step (19) can be so that valve disc (16) be subject to hydraulic coupling left;
Valve disc (16) is that each valve pocket (12) is communicated with main intake tunnel (20) by branch's intake tunnel (15) with the annexation of cylinder body (10);
Valve disc (16) right-hand member afterbody is fixedly connected with thrust bearing (23), cover plate (18) presses with thrust bearing (23), cover plate (18) is fixed in rear end cover (17), form annular effluent trough (24) between valve disc (16) right-hand member afterbody and cover plate (18) and the rear end cover (17), have water outlet (25) on the rear end cover (17), water outlet (25) communicates with annular effluent trough, communicate by exhalant canal (22) between valve pocket (27) and the annular effluent trough (24), have water intake (21) on the rear end cover (17), water intake (21) communicates with main intake tunnel (20).
The end of branch's intake tunnel (15) of valve disc (16) is sealed with nylon stopper (14), but keep one of them branch's intake tunnel (15) connected state outside with valve disc (16), each bearing, Sealing and friction pair make water enter into whole pump body from water intake (21), so that can obtain fully water lubricating.The right side of valve disc is fixed with thrust bearing (23), and this thrust bearing (23) can carry cylinder body (10) and valve disc (16) axial force to the right.The right-hand member afterbody of valve disc (16) forms a step (19), and this step (19) can make valve disc (16) and cylinder body (10) be subject to left axial liquid pressure.
Described inclined disc type rotary valve flow pure water plunger pump is characterized in that: be provided with rotating seal component between described front cover (6) and the main shaft (1), rotating seal component is isolated from the outside by oil seal cover (3).
Described inclined disc type rotary valve flow pure water plunger pump, it is characterized in that: described front cover (6) is pressed into sliding bearing (38) from right-hand member, the radial force of carrying main shaft (1).
Described inclined disc type rotary valve flow pure water plunger pump is characterized in that: described front cover (6) has oblique hole (5) and axial bore (4), realizes the fully water lubricating of bearing and Sealing.
Described inclined disc type rotary valve flow pure water plunger pump, it is characterized in that: sealed by rotating seal component between described rear end cover (17) and valve disc (16) the right-hand member axial region, described cover plate (18) and valve disc (16) right-hand member axial region are sealed by rotating seal component, are sealed by static seal between described cover plate (18) and the rear end cover (17).
The radial force that the outer large bearing (8) of step bearing (38) and cylinder bore the pump housing before this model utility adopted has reduced the PV value that each bearing bears, and has prolonged the life-span of bearing.
This model utility swash plate (35) is fixing, cylinder body (10) and valve disc (16) rotation, thus avoided vibrating because of the pump housing that swash plate (35) rotation causes.
The applications of plunger (33) " automatic compensating device for sealed clearance of plunger pair " (number of patent application: 200910243654.6) of patent applied for, be pressed with plunger bushing (30) in the outside of plunger (33), have water port (31) radially on the plunger (33), plunger (33) is in setting-out, high pressure water enters water port (31) from plunger cavity (28), make plunger bushing (30) be pressed on cylinder body (10) inwall, reduced because the leakage that the excesssive gap between plunger cavity (28) and the plunger (33) causes.
Beneficial effect:
Swash plate (35) is fixed together with front cover (6), does not rotate together with main shaft (1), has avoided because the pump housing vibration that the mass unbalance of swash plate (35) causes; Before adopting the outer large structure of bearing (8) of step bearing (38) and cylinder has reduced the PV value that each bearing bears, thus the life-span of having improved bearing, and two bearing actings in conjunction have reduced the vibration of the pump housing that main shaft (1) flexural buckling causes; The inner high pressure water of plunger cavity (28) acts on high pressure water on the plunger bushing (30) by diversion passage (31), realizes the auto-compensation in gap, reduces because the leakage that the gap between plunger (33) and the plunger hole (28) causes; Replace thrust plate with flow-distributing valve, reduced friction pair, improved contamination resistance and the sealability of water pump, reduced the wear resistance requirement of hydraulic pressure system filter precision and material, realized the high-pressure trend of inclined disc type pure water plunger pump; Front cover (6) has oblique hole (5) and axial bore (4), and cylinder body (10) has water port (29), so that aqueous medium can be full of whole housing (13), Sealing, bearing and friction pair can obtain sufficient lubrication; The axial force to the right that the thrust bearing (23) of valve disc (16) right-hand member can carry cylinder body (10) and valve disc (16).Main intake tunnel (20) on the valve disc (16) is positioned at main shaft (1) axial direction, and main intake tunnel (20) and branch's intake tunnel (15) form a confined space, have greatly reduced the rotation of cylinder body (10) and valve disc (16) to the impact of pump sump ability.The step of valve disc (16) right-hand member afterbody and thrust bearing (23) bear hydraulic coupling to the right jointly.
Description of drawings
Accompanying drawing 1 is the erection drawing of inclined disc type rotary valve flow pure water plunger pump of the present utility model;
The schematic three dimensional views that accompanying drawing 2 is seen from left to right for cylinder body of the present utility model;
The schematic three dimensional views that accompanying drawing 3 is seen from right to left for cylinder body of the present utility model;
The schematic three dimensional views that accompanying drawing 4 is seen from left to right for valve disc of the present utility model;
The schematic three dimensional views that accompanying drawing 5 is seen from right to left for valve disc of the present utility model;
(1) main shaft, (2) rotating seal component, (3) oil seal cover, (4) front cover axial bore, the oblique hole of (5) front cover, (6) front cover, (7) air bleeder screw plug, the outer large bearing of (8) cylinder, (9) cylinder sleeve, (10) cylinder body, (11) suction valve, (12) suction valve valve pocket, (13) housing, (14) nylon stopper, (15) branch intake tunnel, (16) valve disc, (17) rear end cover, (18) cover plate, (19) step of valve disc right-hand member afterbody, (20) main intake tunnel, (21) water intake, (22) exhalant canal, (23) thrust bearing, (24) annular effluent trough, (25) water outlet, (26) delivery valve, (27) delivery valve valve pocket, (28) plunger cavity, (29) cylinder body water port, (30) plunger bushing, (31) plunger diversion passage, (32) plunger cavity cover, (33) plunger, (34) piston shoes, (35) swash plate, (36) return plate, (37) ball pivot, (38) front step bearing, (39) spring eye, (40) spring seat
Embodiment
As shown in the figure, the utility model comprises main shaft (1), front cover (6), housing (13), rear end cover (17), swash plate (35), return plate (36), ball pivot (37), piston shoes (34), plunger (33), cylinder body (10), valve disc (16), cover plate (18), thrust bearing (23).Front cover (6) is realized sealing by rotating seal component, and oil seal cover (3) separates Sealing and outside, and front cover (6) is embedded with front step bearing (38).Front cover (6) main body has oblique hole (5) and axial bore (4), and step bearing (38) and rotating seal component can obtain fully water lubricating before guaranteeing.
Swash plate (35) is positioned at the right-hand member of front cover (6), and swash plate (35) is fixed on the front cover (6).The right-hand member of swash plate (35) is piston shoes (34), plunger (33), return plate (36), ball pivot (37).Plunger (33) moves reciprocatingly in the plunger cavity (28) of cylinder body (10).
Odd number piston shoes (34) circumferentially evenly distribute along return plate (36), return plate (36) inner side surface is close to ball pivot (37) outer side surface and is slided, axially be evenly distributed with spring eye (39) in the cylinder body (10), spring one end is fixed on the spring seat (40), one side pressure of spring is on the mating face of valve disc (16) and cylinder body (10), the other end of spring compresses ball pivot (37) by spring seat (40), ball pivot (37) acts on the return plate (36), return plate (36) acts on piston shoes (34), so that piston shoes (34) can press swash plate (35).
Be pressed into plunger bushing (30) in plunger (33) outside, have plunger diversion passage (31) in the plunger (33), when plunger (33) setting-out, high pressure water can act on the plunger bushing (30) by plunger diversion passage (31), realize the auto-compensation in gap, reduce and leak.Cylinder body (10) endoporus has spline, and main shaft (1) drives cylinder body (10) by spline and valve disc (16) rotates jointly.Cylinder body (10) and valve disc (16) are fixed together.
The outer large bearing (8) of step bearing (38) and cylinder had reduced the PV value that each bearing bears, the life-span of having improved bearing before the utility model adopted.Two bearing actings in conjunction have reduced the vibration of the pump housing that main shaft (1) flexural buckling causes.
The working procedure of this inclined disc type rotary valve flow pure water plunger pump is as described below: motor makes main shaft (1) obtain rotating speed, and main shaft (1) drives cylinder body (10) by spline and valve disc (16) rotates with this rotating speed jointly.Plunger (33) and piston shoes (34) rotate with cylinder body (10).Swash plate (35) is upper to rotate retracting spring so that piston shoes (34) are close to.The variation of swash plate (35) axial length is so that piston shoes (34) obtain axial thrust, and plunger (33) moves reciprocatingly along plunger cavity (28), and the volume in the plunger cavity (28) obtains periodic the variation.When piston shoes (34) move from the direction of limit inferior position (the sloping tray axial thickness maximum) limit position that makes progress (sloping tray axial thickness is minimum) of swash plate (35), plunger (33) is to left movement, it is large that volume in the plunger cavity (28) becomes, and obtains certain degree of vacuum.At this moment, the suction valve (11) in the cylinder body (10) externally overcomes spring force under the effect of hydraulic pressure to be opened, water from water intake (21) along main intake tunnel (20) and branch's intake tunnel (15) enter into plunger cavity (28).When piston shoes (34) move to limes superiors position (sloping tray axial thickness is minimum), when beginning from the limes superiors position (sloping tray axial thickness is minimum) limit position motion downwards (sloping tray axial thickness is maximum), plunger cavity (28) volume diminishes, form high pressure water in the plunger cavity (28), cylinder body (10) suction valve this moment (11) cuts out under the effect of high pressure water.Delivery valve (26) is opened under the effect of high pressure water, and water flows out from water outlet along exhalant canal (22).Cylinder body water port (29) in the cylinder body (10) and the axial bore (4) on the front cover (6) and oblique hole (5) so that the whole pump housing under the condition of fully water lubricating, work, all Sealings, bearing and friction pair can obtain sufficient lubrication, prevent under the dry friction operating mode operation and lose efficacy.

Claims (6)

1. inclined disc type rotary valve flow pure water plunger pump is characterized in that: main shaft (1), front cover (6), housing (13), rear end cover (17), swash plate (35), piston shoes (34), plunger (33), cylinder body (10), valve disc (16), thrust bearing (23), cover plate (18), suction valve (11), delivery valve (26), return plate (36), ball pivot (37);
Front cover (6), housing (13), rear end cover (17) forms the outside framework of pump from left to right successively, internal structure from left to right is followed successively by front cover (6), swash plate (35), cylinder body (10), valve disc (16) and rear end cover (17), main shaft (1) runs through front cover (6) and swash plate (35) from left to right, main shaft (1) drives cylinder body (10) by spline and rotates, front cover (6) is fixedly connected with swash plate (35), be return plate (36) and ball pivot (37) between swash plate (35) and the cylinder body (10), cylinder body (10) is fixed together with valve disc (16), valve disc (16) rotates under the drive of cylinder body (10), and thrust bearing (23) and cover plate (18) are positioned between valve disc (16) and the rear end cover (17) from left to right successively;
Described cylinder body (10) is solid body, have a plurality of plunger cavities (28), be uniformly distributed along the circumference, plunger cavity (28) runs through cylinder body (10) vertically, plunger (33) is positioned at plunger cavity (28), cylinder body (10) has a plurality of valve pockets (12), the number of valve pocket (12) is identical with the number of plunger cavity (28), valve pocket (12) circumferentially evenly distributes along cylinder body (10), valve pocket (12) does not run through cylinder body (10) vertically, valve pocket (12) is built-in with suction valve (11), and the valve port of suction valve (11) is opened end valve dish (16) to the right; The unique corresponding plunger cavity of each valve pocket (12) (28), they are communicated with by curve bath; Described cylinder body (10) has spring eye (39), and spring eye (39) is built-in with spring and spring seat (40); The right-hand member of spring acts on the left side of valve disc (16), the left end of spring is installed on the spring seat (40), spring acts on the ball pivot (37) by spring seat (40), ball pivot (37) acts on the return plate (36), return plate (36) acts on the piston shoes (34), and piston shoes (34) are close on swash plate (35) inclined-plane;
Described valve disc (16) is solid body, have a plurality of valve pockets (27), be uniformly distributed along the circumference, valve pocket (27) does not connect vertically, the number of valve pocket (27) is identical with the number of plunger (33), valve pocket (27) is built-in with one-way valve, be delivery valve (26), the valve port of delivery valve (26) is opened left end plug chamber (28), valve disc (16) is provided with main intake tunnel (20), main intake tunnel (20) axis and main shaft (1) dead in line, and connect valve disc (16), have many branch's intake tunnels (15) on the main intake tunnel (20), valve disc (16) is provided with a plurality of high pressure water exhalant canals (22), and each valve pocket (27) is communicated with a high pressure water exhalant canal (22); Valve disc (16) right-hand member afterbody has a step (19), and this step (19) can be so that valve disc (16) be subject to hydraulic coupling left;
Valve disc (16) is that each valve pocket (12) is communicated with main intake tunnel (20) by branch's intake tunnel (15) with the annexation of cylinder body (10);
Valve disc (16) right-hand member afterbody is fixedly connected with thrust bearing (23), cover plate (18) presses with thrust bearing (23), cover plate (18) is fixed in rear end cover (17), form annular effluent trough (24) between valve disc (16) right-hand member afterbody and cover plate (18) and the rear end cover (17), have water outlet (25) on the rear end cover (17), water outlet (25) communicates with annular effluent trough, be communicated with by exhalant canal (22) between valve pocket (27) and the annular effluent trough (24), have water intake (21) on the rear end cover (17), water intake (21) communicates with main intake tunnel (20).
2. inclined disc type rotary valve flow pure water plunger pump according to claim 1, it is characterized in that: be provided with rotating seal component between described front cover (6) and the main shaft (1), rotating seal component is isolated from the outside by oil seal cover (3).
3. inclined disc type rotary valve flow pure water plunger pump according to claim 1, it is characterized in that: described front cover (6) is pressed into sliding bearing (38) from right-hand member, the radial force of carrying main shaft (1).
4. inclined disc type rotary valve flow pure water plunger pump according to claim 1, it is characterized in that: described front cover (6) has oblique hole (5) and axial bore (4), realizes the fully water lubricating of bearing and Sealing.
5. inclined disc type rotary valve flow pure water plunger pump according to claim 1, it is characterized in that: the end of branch's intake tunnel (15) of described valve disc (16) is sealed with nylon stopper (14), but keep one of them branch's intake tunnel (15) connected state outside with valve disc (16), namely one of them branch's intake tunnel (15) is not sealed by nylon stopper (14).
6. inclined disc type rotary valve flow pure water plunger pump according to claim 1, it is characterized in that: sealed by rotating seal component between described rear end cover (17) and valve disc (16) the right-hand member axial region, described cover plate (18) and valve disc (16) right-hand member axial region are sealed by rotating seal component, are sealed by static seal between described cover plate (18) and the rear end cover (17).
CN 201220499454 2012-09-27 2012-09-27 Swash plate type rotary valve flow distributing pure water plunger pump Expired - Fee Related CN202833001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220499454 CN202833001U (en) 2012-09-27 2012-09-27 Swash plate type rotary valve flow distributing pure water plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220499454 CN202833001U (en) 2012-09-27 2012-09-27 Swash plate type rotary valve flow distributing pure water plunger pump

Publications (1)

Publication Number Publication Date
CN202833001U true CN202833001U (en) 2013-03-27

Family

ID=47944726

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220499454 Expired - Fee Related CN202833001U (en) 2012-09-27 2012-09-27 Swash plate type rotary valve flow distributing pure water plunger pump

Country Status (1)

Country Link
CN (1) CN202833001U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277279A (en) * 2013-06-09 2013-09-04 淮阴工学院 Pump assisted type valve distributing plunger pump
CN104405604A (en) * 2014-10-20 2015-03-11 浙江大学 Ultrahigh-pressure axial plunger pump
CN106351827A (en) * 2016-10-20 2017-01-25 华中科技大学 Flow distribution cooling mechanism and inclined disc compressor with same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277279A (en) * 2013-06-09 2013-09-04 淮阴工学院 Pump assisted type valve distributing plunger pump
CN104405604A (en) * 2014-10-20 2015-03-11 浙江大学 Ultrahigh-pressure axial plunger pump
CN106351827A (en) * 2016-10-20 2017-01-25 华中科技大学 Flow distribution cooling mechanism and inclined disc compressor with same

Similar Documents

Publication Publication Date Title
CN103184990B (en) Oblique plunger type pure water hydraulic swash plate pump
CN103075316B (en) Cylinder inner bearing supports semi-shaft type Water Hydraulic Axial Piston Pump
CN101985921B (en) External radial plunger pump of casing tongue sealing mechanism
CN202833001U (en) Swash plate type rotary valve flow distributing pure water plunger pump
CN101949374A (en) Swash plate type valve distributing high-pressure pure water plunger pump
CN104454420A (en) Inclined-disc-rotating internally-disposed valve flow distribution axial plunger pump
CN101832243A (en) Axial water pressure plunger pump with easy maintenance
CN201771701U (en) Inclined disc type valve flow distribution high pressure pure water plunger pump
CN109441749B (en) Shaft valve composite flow distribution method of water hydraulic plunger pump
CN103883493B (en) The axial piston pump that a kind of cylinder body is static
CN201786591U (en) Axial water-pressure plunger pump easy to be repaired
CN201615056U (en) Rotor pump with high self-priming performance
CN203285640U (en) Auxiliary pump type plunger pump with flow distributed by valve
CN108301999B (en) A kind of two-dimentional plunger pump of space cam transmission
CN108506453A (en) Hydrostatic variable-speed torque-converting device
CN206035733U (en) Two inclined plane axial plunger pump of balanced type
CN112032009B (en) Valve flow distribution axial plunger pump
CN102174924B (en) Swing-cylinder hydraulic motor
CN109653973B (en) Water lubrication shaft valve composite flow distribution radial plunger pump
CN203009155U (en) Oil distribution disc of hydraulic motor
CN104895754B (en) An axial plunger and radial plunger combined hydraulic pump
CN105275734A (en) Axial-oil-distribution tilt cylinder plunger type hydraulic motor
CN201344123Y (en) Novel pump cover of radial plunger pump
CN110617213B (en) Spiral tooth double-arc tooth-shaped hydraulic gear pump with dynamic and static pressure floating support at shaft end
CN212803799U (en) High back pressure hydraulic steering gear with Y-shaped rotary dynamic sealing structure

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130327

Termination date: 20140927

EXPY Termination of patent right or utility model