CN105593519B - Sealing ring for hydraulic pressure pump dispenser - Google Patents

Sealing ring for hydraulic pressure pump dispenser Download PDF

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Publication number
CN105593519B
CN105593519B CN201480053212.4A CN201480053212A CN105593519B CN 105593519 B CN105593519 B CN 105593519B CN 201480053212 A CN201480053212 A CN 201480053212A CN 105593519 B CN105593519 B CN 105593519B
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CN
China
Prior art keywords
sealing
ring
sealing ring
hydraulic pressure
stator
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CN201480053212.4A
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Chinese (zh)
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CN105593519A (en
Inventor
V·拉比
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Individual
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/047—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the outer ends of the cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves
    • F04B1/0465—Distribution members, e.g. valves plate-like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/303—Control of machines or pumps with rotary cylinder blocks by turning the valve plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Abstract

A kind of sealing ring (1) for hydraulic pressure pump dispenser includes continuous sealing ring (11), the hydraulic pressure pump dispenser is used for the pressure distributor (2) of hydraulic pump (44), the continuous sealing ring (11) is contained in the annular groove (16) being formed in pump stator (3), the input/output port (7) of the pump stator (3) is each aligned with distribution opening (21), the distribution opening (21) is on the direction of its thickness directly through the ring (11), this ring includes circular contact sleeve (14), it has the circumference (15) that can be contacted with rotor-side low pressure seal surface (13), the ring (11) also includes compression decompression track (24), sealed ring sealing lip (39) between the ring (11) and annular groove (16) is provided, and anti-rotation device (36).

Description

Sealing ring for hydraulic pressure pump dispenser
Technical field
Subject of the present invention is a kind of sealing ring for hydraulic pressure pump dispenser.
Background technology
Those hydraulic pumps of rotating cylinder axial-piston or radial-piston motor hydraulic pump, particularly variable cylinder capacity, lead to Often it is made up of the rotor for wherein forming hydraulic cylinder.In each cylinder, hydraulic piston performs reciprocating motion.
The rotor is generally included into charge level, and it keeps the distribution surface with being formed on the surface of stator (also to be claimed sometimes For distribution plate) most sealedly may contact, distribution surface is likely to form the part of the pump housing.
Enter charge level and generally comprise hole, each hole is connected to one in hydraulic cylinder, and distribution surface is inputted including at least one Mouthful, hydraulic piston can suck hydraulic fluid via input port；And at least one delivery outlet, the piston can be via output The mouth conveying fluid, the hole and the port constitute pressure distributor.
Therefore, when the rotor is turning, the hole is alternately connected by input port with input pipe, then via delivery outlet with Efferent duct is connected.This have the consequence that, the reciprocating motion that each is performed in the hydraulic cylinder of its own due to hydraulic piston, The flowing of hydraulic fluid may be set up between the pipe.
It should be noted that entering between charge level and distribution surface inevitably to occur the leakage of hydraulic fluid.Therefore, on the one hand, Some hydraulic fluids are directly delivered to input pipe, or vice versa from efferent duct, and on the other hand, some described fluids directly from The pipe is delivered to the inner sheath that the hydraulic pump is generally comprised.These leakages reduce the volume and energy efficiency of the pump.
In the case of the hydraulic pump of the type with axial piston, in order to seal relative to each other as far as possible, enter charge level The load tending to make it be in contact with each other is subjected to distribution surface.This load pushing away in response to hydraulic piston especially by thrust plate Power and the result of reaction force produced, such as described plate is probably wobbler or yoke.
With reference to the relative motion in the face, the reaction force causes friction loss, is set by this way so as to reduce The energy efficiency of the pump of meter.It must be noted that under the particular case of axial piston hydraulic pump, entering charge level and distribution surface respectively being made by oneself Position is on planar circular surface.
In the case of rotating cylinder radial-piston motor hydraulic pump, distributor is generally by being positioned on the outer surface of the first cylinder Distribution surface composition, the first cylinder is fixed to stator, and enters charge level and be positioned on the inner surface of the second cylinder, the assembling of the second cylinder On the first cylinder and fixed to rotor.Using this particular configuration, preferably by staying in the first cylinder and the second cylinder Between small―gap suture obtain sealing between the face, extreme essence is needed in the process of these cylinders during manufacture Degree.
Even if the friction loss produced by the distributor may be relatively low, obtain sealing using this strategy and can still result at this The notable leakage occurred on the distributor of latter type.In addition, unless radial-piston motor hydraulic pump with diametrically opposite position On at least two input ports and two delivery outlet radial equilibriums, the port of higher pressure is otherwise being subjected to by hydraulic fluid The pressure applied on cross section may make the distributor be subjected to be probably potential high radial load things, this may lead No small extra friction is caused to lose.
Provided that radial load compensating groove is subjected to input port or the radial load of delivery outlet of higher pressure to offset, Then this shortcoming can also be reduced if not actually elimination.This arrangement is on May 22nd, 2013 for example on the date, with Shen Stated in the number of patent application 1354562 related to pump motor that the name asked someone is submitted.
In view of above-mentioned situation, in current technological development level, tended to produce with high-caliber sealed distributor High friction loss, and on the contrary, being more likely to show the notable leakage of hydraulic fluid with the distributor that low friction is lost.
It should be noted that, on the one hand, if the pressure of pump operation is higher, and on the other hand, if the pump is used for portion Gas-distributing cylinder capacity, then in those liquid of rotating cylinder radial-piston motor or axial piston hydraulic pump, especially variable cylinder capacity The relative drop of energy efficiency caused by hydraulic leak and friction loss that the entering of press pump occurs between charge level and distribution surface compared with It is high.
Therefore, it is of particular importance that, the leakage and the loss are reduced as far as possible, and depressurize hydraulic fluid simultaneously The energy for the highest possible part that Shi Huifu is discharged by hydraulic fluid.
In order to meet this group of target, relative to prior art and when according to a particular matching somebody with somebody distributor When standby cylinder enters charge level and distribution surface, following provisions are made according to the sealing ring for hydraulic pressure pump dispenser of the present invention：
For identical friction loss, as the leakage occurred between the inner sheath that the pipe and hydraulic pump are generally comprised Stream is the same, and the leakage stream occurred between the input pipe and efferent duct of the distributor is reduced；
For the sealing of phase same level, the friction loss produced by the distributor is relatively low.
Therefore, especially can according to the sealing ring for hydraulic pressure pump dispenser of the present invention：
Help to set up the hydraulic pump for showing high volume and energy efficiency；
Allow the design and manufacture of hydraulic pump or hydraulic electric motor pump, these pumps can be advantageously formed together with other assemblies Specialize in the hydraulic hybrid transmission for the high energy source efficiency that motor vehicle driving is used.
In addition, having inexpensive price according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is manufactured need not Complicated method or the material of costliness.
The ring is also designed to provide robustness and the life-span of height, and can be used for the field of high hydraulic pressure.
The ring can also be applied to any hydraulic pump or hydraulic pump motor of fixed or variable cylinder capacity, especially pump Or whether pump motor has blade, axial piston, radial piston, rotation or non-rotating cylinder type, and no matter run thereon Fluid：Liquid, gas or semiliquid.
The content of the invention
For the sealing ring of hydraulic pressure pump dispenser, the hydraulic separate that the hydraulic pressure pump dispenser is designed to include hydraulic pump is matched somebody with somebody Device, the distributor includes at least one pump stator distribution surface fixed to pump stator, and the distribution surface has stator side low pressure Sealing surfaces, at least two input-outputs mouthful in pump stator are unfolded into from stator side low pressure seal surface, and defeated Enter-delivery outlet in it is each with specific to input-output mouthful and be similarly formed the stator interior at least one input- Efferent duct is connected, and the distributor also includes at least one pump rotor fixed to pump rotor and enters charge level, and the charging face has Rotor-side low pressure seal surface, opens at least one hole, hole is with forming in the internal rotor from rotor-side low pressure seal surface Feed pipe connection, and stator side low pressure seal surface is oriented to towards rotor-side low pressure seal surface so that pump rotor is every Turn at least one times, charging hole alternately finds itself towards one or the other in two input-outputs mouthful, including：
At least one continuous sealing ring, it is contained in annular groove with a small amount of axially and/or radially gap, and annular groove is formed In the pump stator inside the surface region limited by stator side low pressure seal surface, the ring, which has, to be contained in inside annular groove Stator side ring surface, and the rotor side ring surface flushed with stator side low pressure seal surface, and input-output mouthful is beaten via the groove Reach on sealing surfaces, ring is wider than the port to cover port on axially or radially, and including substantially axial therewith Or at least one radially aligned distribution opening, the opening on the direction of its thickness directly through continuous sealing ring, when entering When expecting hole generally facing the port, opening can place one in two input-outputs mouthful connected with charging hole；
At least one circular contact sleeve, it is axially or radially formed on every side in distribution opening, the sleeve Circumference with the contact that can be contacted with rotor-side low pressure seal surface；
At least one compresses-track is depressurized, it is formed on certain angle sector of rotor side ring surface, and the sector is determined The outside of the part in the face that position is located in radial distribution opening；
At least one ring sealing lip, it may or may not be fixed to continuous sealing ring, and perform the ring and ring Axially or radially sealing between groove；
At least one compression-reduced pressure sealing pad, it performs stator side ring surface and the bottom and/or axial direction of annular groove or footpath So done to the sealing between side, and in the angular region that superincumbent angle sector is limited is formed by compression-decompression track；
Anti-rotation device, it makes continuous sealing ring be maintained at the fixed angular positions relative to pump stator.
Annular groove is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it, which is included in, is oriented to and stator side Ring bearing face on the side at a right angle of low pressure seal surface, the ring bearing shoulder that the bearing-surface includes with continuous sealing ring is assisted Make.
Annular groove is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it, which is included in, is oriented to and stator side Ring sealing surface on the side at a right angle of low pressure seal surface, the ring sealing shoulder association that the sealing surface includes with continuous sealing ring Make.
Ring sealing lip is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is to seal shoulder fixed to ring Flexible metal blade.
Ring sealing lip is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is positioned at prolonging for ring sealing shoulder Above continuous part, below or the inside.
Ring sealing lip is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it of flexible material by being made Transverse sealing pad is constituted, and flexible material keeps contacting simultaneously with annular groove and stator side ring surface.
Compression-reduced pressure sealing pad is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it has at least The bottom of one fan-shaped compression-decompression honeycomb chamber, honeycomb chamber and stator side ring surface and annular groove and/or axially or radially limit together with side Fixed closing and sealed volume.
Compression-reduced pressure sealing pad is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it includes sector Compression-decompression honeycomb chamber reinforcement alveolate texture formed therein, the alveolate texture is produced with rigid material, and energy The appropriate position relative to continuous sealing ring is enough directly or indirectly maintained at using anti-rotation device, and the rigid material can To scribble flexible material completely or partially, flexible material on the one hand can be with stator side annular face contacts, and/or another aspect and ring The bottom of groove and/or axially or radially side contacts.
Included strengthening alveolate texture according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is incorporated to stator side ring Face and by being made with continuous sealing ring identical material.
Compression-decompression track is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it has at least one Fan-shaped compression-vent, fan-shaped compression-relief pipe is opened via fan-shaped compression-vent, fan-shaped compression-relief pipe connection by The closing of fan-shaped compression-decompression honeycomb chamber limit and sealed volume and rotor side ring surface, the scallop hole is in this way It is positioned：Once, charging hole finds itself towards the scallop hole, the scallop hole and then via sector pressure to every turn of pump rotor Feed pipe is connected to the sealed volume by contracting-relief pipe.
Include the transverse sealing for only forming a single component according to the sealing ring for hydraulic pressure pump dispenser of the present invention Pad and compression-reduced pressure sealing pad.
Ring sealing surface is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is oriented to the circle with contacting Contour is substantially vertical.
Ring sealing surface is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is oriented to the circle with contacting Contour is substantially vertical, and ring sealing surface than the sealing surface further from the bottom of annular groove and distribution be open so that ring sealing surface with The skew of the circumference out of plumb of contact.
At least one in the axial face of the sealing ring for hydraulic pressure pump dispenser including annular groove of the present invention, its by The axial face for fitting closely over the installation band of the ring around pump stator is formed.
Cylindrical pump stator distribution surface is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention and pump rotor enters Charge level, and at least one in input-output mouthful cooperates with forming at least one radial load compensating port in pump stator, mends Repay mouth to open from pump stator distribution surface and enter charge level towards pump rotor, the compensating port is also located at and compensation in the stator At the input-output mouthful diametrically opposite that mouth is cooperated, and input-output pipe is connected to by radial load compensation pipe, The input-output mouthful that compensating port is cooperated is connected to input-output pipe.
According to the present invention the sealing ring for hydraulic pressure pump dispenser include compensating port, its via radial load compensating tank from Pump stator distribution surface is opened, and radial load compensation sealing plate is contained in radial load benefit with a small amount of axial direction and/or tangential gap Repay in groove.
Radial load compensation sealing plate is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is in its thickness Direction on be open directly through compensation, compensation opening is placed enters the radial load compensation pipe that charge level connect with pump rotor.
Radial load compensating tank is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it, which is included in, is directed Plate bearing-surface on the side at a right angle with stator side low pressure seal surface, the bearing-surface and radial load compensation sealing plate Including plate support shoulder cooperation.
Radial load compensating tank is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it, which is included in, is directed Plate sealing surface on the side at a right angle with stator side low pressure seal surface, the sealing surface and radial load compensation sealing plate Including plate sealing shoulder cooperation.
According to the present invention the sealing ring for hydraulic pressure pump dispenser include radial load compensation sealing plate, its with can with or The compensating plate sealing lip cooperation of the plate can be not affixed to, the lip performs the axle between the plate and radial load compensating tank To and/or radially and/or tangential sealing.
Ring sealing lip is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it of flexible material by being made Flexible compensation gasket seal is constituted, and flexible material keeps connecing with radial load compensating tank and radial load compensation sealing plate simultaneously Touch.
Radial load compensation sealing plate is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it includes being formed At least one compensation peripheral contacts sleeve in its periphery, the sleeve has can enter the contact that charge level is contacted with pump rotor Compensate object-line.
Plate sealing surface is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is oriented to the benefit with contacting Repay object-line substantially vertical.
Plate sealing surface is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is oriented to the benefit with contacting Repay that object-line is substantially vertical, and plate bearing-surface is open than the sealing surface further from the bottom of radial load compensating tank and compensation, So that plate sealing surface and the skew of the compensation object-line out of plumb contacted.
Include distribution according to the sealing ring for hydraulic pressure pump dispenser of the present invention to be open, it includes at least one connection Beam, beam makes circular contact sleeve connection together, and the beam is sub so as to limit at least one distribution on the either side of its length Opening.
Anti-rotation device is included according to the sealing ring for hydraulic pressure pump dispenser of the present invention, it is rotated by least one anti-ring Pin bank into the pin on the one hand anti-stator rotation that insertion is formed in pump stator of, anti-ring rotation pin-and-hole, and on the other hand The side for being inserted in its thickness is upward through the pin-and-hole that the anti-ring of continuous sealing ring rotates.
Brief description of the drawings
It will allow to more fully understand the present invention with reference to the description that the accompanying drawing provided by way of non-limiting example is carried out The advantage that the feature and the present invention shown can be provided：
Fig. 1 is the three-dimensional perspective of axial piston hydraulic pump, and axial piston hydraulic pump includes receiving according to the present invention Hydraulic pressure pump dispenser sealing ring pressure distributor, the continuous sealing ring of sealing ring has plane global shape and inserts same The pump stator distribution surface and pump rotor that sample has flat shape enter between charge level.
Fig. 2 is the three-dimensional perspective of radial-piston motor hydraulic pump, and radial-piston motor hydraulic pump includes receiving according to the present invention Hydraulic pressure pump dispenser sealing ring pressure distributor, the continuous sealing ring of sealing ring has cylinder global shape and inserts same The pump stator distribution surface and pump rotor that sample has cylindrical shape enter between charge level.
Fig. 3 and Fig. 4 are that the three-dimensional for the pressure distributor for receiving the hydraulic pressure pump dispenser sealing ring according to the present invention is saturating respectively View and the 3-D view decomposed, the continuous sealing ring of sealing ring have cylinder global shape, and the ring is with being axially positioned on two Four radial load compensating ports cooperation on every side of individual input-output mouthful.
Fig. 5 is to work as continuous sealing ring to have cylinder global shape, and with two compression-reduced pressure sealing pads and four During transverse sealing pad, the 3-D view of continuous sealing ring, the identical continuous blocks that pad can be cooperated by the ring are soft Property material composition, this configuration be likely to form according to the present invention hydraulic pressure pump dispenser sealing ring a particular.
Fig. 6 and Fig. 7 be respectively when continuous sealing ring has cylinder global shape, and when continuous sealing ring include-root According to the fan-shaped compression-decompression honeycomb chamber of particular-six of the hydraulic pressure pump dispenser sealing ring of the present invention and 15 During distribution son opening, the side view and schematic cross-section of continuous sealing ring.
Fig. 8 is the schematic cross-section for the pressure distributor for receiving the hydraulic pressure pump dispenser sealing ring according to the present invention, institute The pump stator that distributor includes possessing two input-outputs mouthful is stated, stator cooperates with the pump rotor with nine charging holes.
Fig. 9 be according to the present invention hydraulic pressure pump dispenser sealing ring continuous sealing ring and the continuous loop with it is all this The three-dimensional cross-section of the transverse sealing pad, annular groove and the pump stator that cooperate a bit.
Figure 10 be may by according to the present invention hydraulic pressure pump dispenser sealing ring provide Fig. 8 as shown in continuous sealing Partial schematic section on the B-B of ring, the section is intercepted in the region of distribution son opening.
Figure 11 be may by according to the present invention hydraulic pressure pump dispenser sealing ring provide Fig. 8 as shown in continuous sealing Partial schematic cross section on the C-C of ring, the section especially shows how fan-shaped compression-decompression honeycomb chamber can be arranged And how this honeycomb chamber can be connected to the surface of compression-decompression track by fan-shaped compression-relief pipe.
Figure 12 and Figure 13 illustrated in schematic cross-section two inputs of the pump stator cooperated when the continuous loop- One in delivery outlet when being subjected to high pressure, such as may be by the continuous sealing that is provided according to the hydraulic pressure pump dispenser sealing ring of the present invention How ring works.
Figure 14 be according to the radial load compensation sealing plate that can include of hydraulic pressure pump dispenser sealing ring of the present invention and The three-dimensional cross-section of the plate and all these flexible compensation gasket seals cooperated, radial load compensating tank and pump stator.
Figure 15 be as may by according to the present invention hydraulic pressure pump dispenser sealing ring provide radial load compensation sealing plate Schematic cross-section, the cross section be the plate include compensation opening region in be intercepted.
Embodiment
Fig. 1 to Figure 15 shows hydraulic pressure pump dispenser sealing ring 1.
The pressure distributor 2 that hydraulic pump 44 can include is intended for according to the hydraulic pressure pump dispenser sealing ring 1 of the present invention, The distributor 2 includes at least one pump stator distribution surface 5 fixed to pump stator 3, and the distribution surface 5 has stator side low pressure Sealing surfaces 12, at least two input-outputs mouthful 7 in pump stator 3 are unfolded into from stator side low pressure seal surface 12, and And in input-output mouthfuls 7 it is each with specific to input-output mouthful 7 and be similarly formed inside the stator 3 at least one Individual input-output pipe 8 is connected, and distributor 2 also includes at least one pump rotor fixed to pump rotor 4 and enters charge level 6, the charging Face 6 has rotor-side low pressure seal surface 13, opens at least one hole 9 from rotor-side low pressure seal surface 13, hole 9 is with forming Feed pipe 10 inside the rotor 4 is connected, and stator side low pressure seal surface 12 is oriented to towards rotor-side low pressure seal Surface 13 so that at least one times, charging hole 9 alternately finds itself towards in two input-outputs mouthful 7 to every turn of pump rotor 4 One or the other.
Fig. 1 to Figure 13 shows that hydraulic pressure pump dispenser sealing ring 1 includes at least one continuous sealing ring 11, and it is with a small amount of axle To and/or radial clearance be contained in annular groove 16, annular groove 16 is formed in the surface district limited by stator side low pressure seal surface 12 In pump stator 3 inside domain, the ring 11, which has, is contained in stator side ring surface 23 inside annular groove 16, and with stator side low pressure The rotor side ring surface 22 that sealing surfaces 12 are flushed, and input-output mouthful 7 is opened to the sealing surfaces 12 via the groove 16 On, the ring 11 is wider than input-output mouthful 7 to cover the input-output mouthful 7 on axially or radially, and including big At least one the distribution opening 21 being axially or radially aligned therewith is caused, opening 21 is on the direction of its thickness directly through continuous close Seal ring 11, when charging hole 9 is generally facing the input-output mouthful 7, the opening 21 can place what is connected with charging hole 9 One in two input-outputs mouthful 7, an identical distribution opening 21 is merely able to place the end connected with the hole 9 Mouthful.
It should be noted that continuous sealing ring 11 can advantageously have small thickness and small hardness so that even if when by hydraulic pressure When the hydraulic pressure that pump 44 is produced is relatively low, continuous sealing ring 11 can also be easily deformed and be adapted to its geometry environment.
Therefore, especially as shown in figs. 9 and 10, at least one is included according to the hydraulic pressure pump dispenser sealing ring 1 of the present invention Individual circular contact sleeve 14, it is axially or radially formed on every side in distribution opening 21, and the sleeve 14 is with can be with The circumference 15 for the contact that rotor-side low pressure seal surface 13 is contacted.
It should be noted that circular contact sleeve 14 and/or rotor-side low pressure seal surface 13 can be nitrogenized, Surface hardened layer and/ Or DLC " diamond-like-carbon " is scribbled, or with any other coating hard and/or with low-friction coefficient.
Hydraulic pressure pump dispenser sealing ring 1 also compresses-depressurized track 24 including at least one, and it is formed in rotor side ring surface 22 Certain angle sector on, the outside of the part in the face 22 that the sector location is located in radial distribution opening 21.Institute State track 24 particularly evident in Figure 5.
It such as clearly can in fig .9 find out, at least one ring sealing lip is further comprised according to the sealing ring 1 of the present invention 39, it may or may not be fixed to continuous sealing ring 11 and perform axially or radially close between the ring 11 and annular groove 16 Envelope.
The specifically shown hydraulic pressure pump dispenser sealing rings 1 of Figure 11 include at least one compression-reduced pressure sealing pad 28, and it is performed The bottom and/or the axially or radially sealing between side of stator side ring surface 23 and annular groove 16, and by compression-decompression track 24 Formed and so done in the angular region that superincumbent angle sector is limited.
Finally, hydraulic pressure pump dispenser sealing ring 1 includes anti-rotation device 36, and as shown in Figures 4 and 5, it makes continuous sealing Ring 11 is maintained at the fixed angular positions relative to pump stator 3.
Following provisions are made according to the hydraulic pressure pump dispenser sealing ring 1 of the present invention：As shown in Figure 9, annular groove 16 can be wrapped Include in the ring bearing face 17 being oriented on the side at a right angle with stator side low pressure seal surface 12, the bearing-surface 17 is with connecting The ring bearing shoulder 19 that continuous sealing ring 11 includes cooperates.
It should be noted that again in fig .9, annular groove 16, which can be included in, to be oriented to stator side low pressure seal surface 12 into straight Ring sealing surface 18 on the side at angle, the sealing surface 18 cooperates with the ring sealing shoulder 20 that continuous sealing ring 11 includes.
As shown in Figure 9, ring sealing lip 39 can be secured to the flexible metal blade that ring seals shoulder 20.
It should be noted that ring sealing lip 39 can be positioned above the extendible portion of ring sealing shoulder 20, following or the inside.
Ring sealing lip 39 can be made up of the transverse sealing pad 27 being made of flexible material, and flexible material is kept and annular groove 16 and stator side ring surface 23 contact simultaneously, be clearly shown in such as Figure 10.The flexible material may, for example, be rubber or elasticity Body, and can be strengthened with more rigid material, such as plastics, Teflon, steel or well known by persons skilled in the art What reinforcement material or structure.
As shown in Figure 11, following provisions are made according to the hydraulic pressure pump dispenser sealing ring of the present invention：Compression-reduced pressure sealing Pad 28 has at least one fan-shaped compression-decompression honeycomb chamber 25, its bottom and/or axle with stator side ring surface 23 and annular groove 16 To or radial side limit closing and sealed volume together, without any limitation, the honeycomb chamber 25 may be with cross section Circle, ellipse, Long Circle, square, rectangle or any geometry.
Compression-reduced pressure sealing pad 28 can include fan-shaped compression-decompression honeycomb chamber 25 reinforcement honeycomb formed therein Shape structure 40, the alveolate texture 40 is produced with rigid material 42, and can use anti-rotation device 36 directly or indirectly The appropriate position relative to continuous sealing ring 11 is maintained at, and the rigid material 42 can apply flexible material completely or partially Material 43, the one side of flexible material 43 can be contacted with stator side ring surface 23, and/or the on the other hand bottom with annular groove 16 And/or axially or radially side contacts.
Fig. 4, Fig. 5, Fig. 7, Fig. 8, Figure 11, Figure 12 and Figure 13 show that stator side ring surface can be incorporated to by strengthening alveolate texture 40 23 and by being made with the identical material of continuous sealing ring 11.In such a case, it is possible to for example make one using electrical-chemistry method Individual or multiple fan-shaped compression-decompression honeycomb chambers 25 sink into stator side ring surface 23, and transverse sealing pad 27 and compression-decompression Gasket seal 28 especially can be made by the flexible material 43 of the overmolded on stator side ring surface 23 and reinforcement alveolate texture 40 Into the pad is then with unique effect：The annular groove 16 that continuous sealing ring 11 is cooperated with continuous sealing ring 11 is provided Between optimal possible sealing.
One specific reality of the hydraulic pressure pump dispenser sealing ring 1 according to the present invention according to Fig. 5 to Fig. 8 and Figure 11 Apply scheme, compression-decompression track 24 can have at least one fan-shaped compression-vent 26, fan-shaped compression-relief pipe 41 via Fan-shaped compression-vent 26 is opened, and fan-shaped compression-relief pipe 41 connects the closing limited by fan-shaped compression-decompression honeycomb chamber 25 With sealed volume and rotor side ring surface 22, the fan-shaped compression-vent 26 is positioned in this way：Pump rotor 4 is every Turn once, charging hole 9 finds itself towards the fan-shaped compression-vent 26, the fan-shaped compression-vent 26 then via Feed pipe 10 is connected to the sealed volume by fan-shaped compression-relief pipe 41.
It should be noted that in this case, the pressure that the hydraulic fluid included in feed pipe 10 is subjected to is diffused into immediately Closing and sealed volume that fan-shaped compression-decompression honeycomb chamber 25 is limited.In consideration of it, applying the pressure above The area of compression-decompression sectored cell chamber 25 becomes the cross-sectional area be advantageously greater than charging hole 9 so that compression-decompression track 24 find naturally self by the pressure exert oneself to be pressed in its towards rotor-side low pressure seal surface 13 on, the production of this result Required sealing between the raw track 24 and the surface 13.
It should be noted that especially in figures 4 and 5, transverse sealing pad 27 and compression-reduced pressure sealing pad 28 can be formed as The only component that can be made up of various rigidity and flexible material, will pass through any device well known by persons skilled in the art Carry out local resistance to deformation and local or equably reinforcement and/or reinforcing.
In this respect, as shown in Figures 10 and 11, transverse sealing pad 27 and/or compression-reduced pressure sealing pad 28 can With for example with metal-cored 55 be made up of rigid material 42.
It should be noted that ring sealing surface 18 can be positioned so that it is substantially vertical with the circumference 15 contacted, but the face 18 with Small skew between the line 15 allows the pressure that (such as Figure 10 suggestions) applies in annular groove 16 that the line 15 firmly is pressed in into pump Rotor enters on charge level 6, so as to realize the line 15 and it is described enter charge level 6 between good sealing, and produce the two simultaneously Only only small amounts of contact load between face and therefore produce seldom friction loss.
Figure 10 also illustrates ring sealing surface 18 and can be positioned so that, and ring supporting surface 17 substantially vertical with the circumference 15 contacted Can be than the sealing surface 18 is further from the bottom of annular groove 16 and is distributed opening 21 so that ring sealing surface 18 and the circumference contacted The skew of 15 out of plumb.
Another particular of the hydraulic pressure pump dispenser sealing ring 1 according to the present invention according to Fig. 4, annular groove At least one axial face that band 34 can be installed by fitting closely over the ring around pump stator 3 in 16 axial face is formed, institute Stating band 34 allows continuous sealing ring 11 and/or compression-reduced pressure sealing pad 28 and/or transverse sealing pad 27 to be arranged on pump stator On 3.
It should be noted that the installation band 34 can particularly by shrink assembly, engage, tighten, crimp, roll or welded and installed On pump stator 3, and at least one solid or viscous that band 34 can include being contained between installation band 34 and pump stator 3 is installed Property gasket seal.
In figs. 3 and 4 it should be noted that it can be cylinder that pump stator distribution surface 5 and pump rotor, which enter charge level 6, and input-defeated At least one in outlet 7 cooperates with forming at least one radial load compensating port 30 in pump stator 3, and compensating port 30 is from pump Stator distribution surface 5 is opened and enters charge level 6 towards pump rotor, and the compensating port 30 is also located at and compensating port in the stator 3 At 30 7 diametrically opposites of the input-output cooperated mouthful, and input-output is connected to by radial load compensation pipe 31 Pipe 8, the input-output mouthful 7 that compensating port 30 is cooperated is connected to input-output pipe 8.
It should be noted that what the compensating port 30 was almost cooperated exposed to the surface region of pressure equivalent to compensating port 30 Input-output mouthful 7 is exposed to the surface region of same pressure so that the pressure is produced very on pump stator 3 and pump rotor 4 Less or without radial load.It should also be noted that compensating port 30 can form the surface district limited on stator side low pressure seal surface 12 Inside domain, and stator side low pressure seal surface 12 can be towards rotor-side low pressure seal surface 13.
Especially as shown in Fig. 4, Figure 14 and Figure 15, compensating port 30 can divide via radial load compensating tank 29 from pump stator Opened with face 5, radial load compensation sealing plate 32 is contained in radial load compensating tank 29 with a small amount of axial direction and/or tangential gap In, the sealing plate 32 is made from steel for example.
Figure 15 shows that radial load compensation sealing plate 32 can be mended on the direction of its thickness directly through compensation opening 48 Repay opening 48 and place and enter the radial load compensation pipe 31 that charge level 6 is connected with pump rotor.
It should be noted that compensation opening 48 can be made up of the hole of small cross section, it keeps radial load compensation sealing plate 32 As rigid as possible, unique function in the hole is will to apply in the radial load compensation pipe 31 that the plate 32 is connected to Pressure diffusion enters charge level 6 to pump rotor.
Figure 14 shows that radial load compensating tank 29 can be included in and is oriented to stator side low pressure seal surface 12 into straight Plate bearing-surface 49 on the side at angle, the plate support shoulder 51 that the bearing-surface 49 includes with radial load compensation sealing plate 32 is assisted Make.
Figure 14 also show that radial load compensating tank 29 can be included in be oriented to stator side low pressure seal surface 12 into Plate sealing surface 50 on the side at right angle, the plate sealing shoulder 52 that the sealing surface 50 includes with radial load compensation sealing plate 32 is assisted Make.
Still in fig. 14, it can be seen that radial load compensation sealing plate 32 can cooperate with compensating plate sealing lip 45, lip 45 The plate 32 may or may not be fixed to, the lip 45 performs the axial direction between the plate 32 and radial load compensating tank 29 And/or radially and/or tangential sealing, and the lip 45 can especially flexible metal blade, its be fixed to plate sealing shoulder 52 and/ Or be positioned above the extendible portion of the shoulder 52, below or the inside.
It should be noted that ring sealing lip 39 can be made up of the flexible compensation gasket seal 33 being made of flexible material, flexible material Material keeps contacting with radial load compensating tank 29 and radial load compensation sealing plate 32 simultaneously, such as described flexible material is probably Rubber or elastomer, may be strengthened with more rigid material, and such as plastics, Teflon, steel or those skilled in the art are Any reinforcement material or structure known.
The particular of the hydraulic pressure pump dispenser sealing ring 1 according to the present invention according to Figure 14 and Figure 15, Radial load compensation sealing plate 32 can include forming at least one compensation peripheral contacts sleeve 46, the sleeve in its periphery 46 have can enter the compensation object-line 47 for the contact that charge level 6 is contacted with pump rotor.
It should be noted that advantageously, the rotor-side low pressure seal table that compensation peripheral contacts sleeve 46 and/or sleeve 46 are cooperated Face 13 can be nitrogenized, Surface hardened layer and/or scribble DLC " diamond-like-carbon ", or with hard and/or with low-friction coefficient Any other coating.
In addition, plate sealing surface 50 can be positioned so that, but the face 50 substantially vertical with the compensation object-line 47 contacted Small skew between the line 47 allows the pressure applied in radial load compensating tank 29 that the line 47 firmly is pressed in into pump Rotor enters on charge level 6, with formed the line 47 and it is described enter charge level 6 between good sealing, and produce the two faces simultaneously Between only small amounts of contact load and therefore produce seldom friction loss.This configuration is clearly stated in fig .15.
It is substantially vertical with the compensation object-line 47 contacted that Figure 15 also shows that plate sealing surface 50 can be positioned so that, and plate is supported Face 49 is than the sealing surface 50 is further from the bottom of radial load compensating tank 29 and compensates opening 48 so that plate sealing surface 50 is with connecing The skew of the tactile compensation out of plumb of object-line 47.
As shown in Fig. 3 to Figure 10 and Figure 12 and Figure 13, distribution opening 21 can include at least one tie-beam 56, and it makes Circular contact sleeve 14 links together, and the beam 56 is open so as to limit at least one distribution on the either side of its length 57, the beam 56 therefore partially enclosed input-output mouthful 7 substantially axial or radially aligned with the opening 21, without damaging The input-output mouthful 7 and towards the hydraulic fluid between the charging hole 9 of the input-output mouthful 7 or any other fluid Correct flowing.
The pin 35 that should be noted that anti-rotation device 36 from Fig. 4 and Fig. 5 can be rotated by least one anti-ring is constituted, anti-ring rotation Pin 35 on the one hand insert formed in pump stator 3 anti-stator rotation pin-and-hole 37, and on the other hand be inserted in its thickness Side be upward through continuous sealing ring 11 anti-ring rotation pin-and-hole 38.
It should be noted that the pin 35 of anti-ring rotation can be mounted freely in the pin-and-hole 38 of anti-ring rotation and tightly install In the pin-and-hole 37 that anti-stator rotates, or vice versa, such as described stop pin 35 is probably metal cartridge or elastic opening pin.
How the present invention works：
It will be worked from foregoing description and combination Fig. 1 to Figure 15 to understand according to the hydraulic pressure pump dispenser sealing ring 1 of the present invention Mode.
In order to illustrate how the ring 1 works, Fig. 2 to the configuration shown in Figure 15 is mainly chosen and applied to hydraulic pressure Pump 44, the hydraulic pump piston 53 and hydraulic pump cylinder 54 of hydraulic pump 44 are radially organized in pump rotor 4, as shown in Figure 2.It is necessary Emphasize, in this non-restrictive illustrative embodiment, the pump 44 conveys oil with pump.
According to this non-restrictive illustrative embodiment of the sealing ring 1 according to the present invention, pump stator distribution surface 5 and pump It is cylinder that rotor, which enters charge level 6,.Therefore, the ring 1 also has main cylindrical shape.As understood map in Fig. 8, Figure 12 and Figure 13 Show, pressure distributor 2 includes two input-outputs mouthful 7 in this example.This demonstrate that the fact that：Continuous sealing ring 11 Including two distribution openings 21, each distribution opening 21 and the input-output mouthful 7 that opening 21 is cooperated are radially aligned, such as Fig. 3 Shown into Fig. 8 and Figure 12 and Figure 13.
Figure 10 is the part section on the B-B of the continuous sealing ring 11 shown in Fig. 8.The section is in distribution opening 21 More particularly it is intercepted above and in distribution opening 57.The section especially shows to be axially formed at the opening 21 Circular contact sleeve 14 on per side.As Fig. 9 in three dimensions shown in, the sleeve 14 have contact circumference 15, It is designed to contact with rotor-side low pressure seal surface 13 to form optimal possible sealing therewith.
In Fig. 3 to Figure 10 and Figure 12 and Figure 13 as can be seen that distribution opening 21 on the direction of its thickness directly through Continuous sealing ring 11, and separated each other in a circumferential direction by compression-decompression track 24, several fan-shaped compression-relief pipes 41 are each opened to the surface of compression-decompression track 24 via the fan-shaped compression-vent 26 of its own.It is non-limiting at this In embodiment, the circular contact sleeve 14 on every side of distribution opening 21 is axially formed in the axial direction by making point The tie-beam 56 of the separation of cloth opening 57 is connected.
It should be noted that especially in Fig. 8, Figure 12 and Figure 13, each sector compression-relief pipe 41 is connected to sector and compressed-subtracts Honeycomb chamber 25 is pressed, fan-shaped compression-decompression honeycomb chamber 25 limits closing and sealed volume together with the bottom of annular groove 16.Figure 11 is Part section on the C-C of continuous sealing ring 11 shown in Fig. 8, it is illustrated in detail in fan-shaped compression-decompression honeycomb chamber 25 such as The fan-shaped compression-relief pipe 41, which is connected to, to be compressed-that what is arranged and how it is cooperated by compression-decompression track 24 subtracts Press the surface of track 24.
It can be clearly seen that fan-shaped compression-decompression honeycomb chamber 25 is formed in Fig. 5, Fig. 7, Fig. 8, Figure 12 and Figure 13 It is incorporated in the cellular reinforcement structure 40 of stator side ring surface 23, the flexible material of the structure 40 overmolded over the structure 43 form compression-reduced pressure sealing pad 28, as shown in Figure 11 in more detail.
Fig. 4 and Fig. 5 show in passing, according to considering here in order to illustrate the sealing according to the present invention that how ring 1 to work The particular of ring 1, two compression-reduced pressure sealing pads 28 and four transverse sealing pads 27 are especially by a kind of and phase The flexible material 43 of same continuous blocks is constituted.In order to become apparent from, in the drawings, the continuous blocks are shown as and continuous sealing Ring 11 is separated.In fact, described piece can cover stator side ring surface 23 and by overmolded or engage and be incorporated to the ring The reinforcement alveolate texture 40 in face 23.
Figure 11 shows that flexible material 43 is partially filled with fan-shaped compression-decompression honeycomb chamber 25 to be formed in the honeycomb chamber 25 Chamber bag, and produce the optimal possible sealing between stator side ring surface 23 and annular groove 16.
As can be seen that the pin 35 (simple metal cylinder in this case) rotated by anti-ring makes company such as from Fig. 4 and Fig. 5 Continuous sealing ring 11 keeps being in the fixed angular positions relative to pump stator 3, and the pin-and-hole 38 that pin 35 rotates via anti-ring is described in Ring 11, the pin 35 is free in the hole 38, and the pin 35 is blocked in the pin-and-hole 37 that anti-stator rotates.
Will be it is easily inferred that being configured with compression-reduced pressure sealing pad 28 and transverse sealing pad in this way from Fig. 4 The continuous sealing ring 11 of piece 27 has been able to install band 34 on pump stator 3 by means of ring.
From Fig. 3 and Fig. 4 it should also be noted that pump stator 3 has angularly is positioned on every side of input-output mouthfuls 7 Four radial load compensating ports 30.It is each defeated using this particular configuration of the hydraulic pressure pump dispenser sealing ring 1 according to the present invention Enter-delivery outlet 7 cooperates with two radial load compensating ports 30, compensating port 30 is with input-output mouthful 7 diametrically opposites formation in pump In stator 3, compensating port 30 compensates pipe 31 by its radial load and is connected to the input-output cooperated with compensating port 30 mouthful 7 It is best illustrated in identical input-output pipe 8, such as Fig. 3.
It should be noted that two compensating ports 30 substantially correspond to compensating port 30 therewith exposed to the total surface region of pressure The input-output mouthful 7 of cooperation is exposed to the surface region of same pressure.Therefore, the pressure applied in input-output mouthful 7 Low or even zero radial load is produced on pump stator 3 and pump rotor 4.
As can be seen that optimal possible sealedly continuous between charge level 6 is entered in offer input-output mouthful 7 and pump rotor In the mode of sealing ring 11, the radial load compensation sealing plate 32 that each radial load compensating port 30 has also provides the port 30 and it is described enter charge level 6 between optimal possible sealing.
In this respect, radial load compensation sealing plate 32 especially includes compensating plate sealing lip 45, its provide described plate 32 with Sealing between the radial load compensating tank 29 that the plate 32 is cooperated.(it is through the three-dimensional transversal of the plate 32 to Figure 14 Face) and Figure 15 (it is schematic cross-section) show, consider herein in order to illustrate according to the present invention sealing ring 1 how work In the case of work, compensating plate sealing lip 45 be thin bonding jumper, its formed plate seal shoulder 52 extendible portion in and with by The flexible compensation gasket seal 33 that flexible material 43 (such as rubber or elastomer) is made cooperates, and the flexible material 43 may be Radial load compensation sealing plate 32 carries out overmolded below and in the extendible portion of the shoulder 52, and the flexible gasket 33 keeps same When lower contacts with radial load compensating tank 29 and compensating plate sealing lip 45.
Here it may emphasize, radial load compensation sealing plate 32 is relative flexibility and easily deformable so that pressure can It is pressed in the compensation object-line 47 contacted on rotor-side low pressure seal surface 13.
In order to accomplish this point, the plate sealing surface 50 that radial load compensating tank 29 is shown is designed to compensate with radial load The out of plumb of compensation object-line 47 for the contact directly over the sealing surface 50 that sealing plate 32 includes.It is this skew it is meant that Stressed cross-sectional area is applied aboveS1Very little so that result from the cross-sectional areaS1Radial load still very little.This Tend to realize the good sealing between the compensation object-line 47 of contact and rotor-side low pressure seal surface 13, and simultaneously in institute The contact position stated between line 47 and the surface 13 produces seldom contact load, and therefore produces seldom friction loss.
In order to describe how to work by rights according to the sealing ring 1 of the present invention, it should be highlighted that, continuous sealing ring 11 have small thickness, and are therefore also relative flexibility and easily deformable.In addition, it should also be emphasized that, annular groove 16 is enough Deep so that the continuous loop 11 can be located relative to the centrifugal radial of groove 16, as shown in figure 12 and figure 13.So And, it is necessary to understand, in fact, deformation and eccentric throw that continuous sealing ring 11 is subjected to are about several microns to tens microns, and The Figure 12 and Figure 13 for describing the deformation and eccentric throw largely similarly amplify so that be appreciated that these to according to this The influence of the operation of the sealing ring 1 of invention.
Therefore, when the radial-piston motor hydraulic pump 44 for the type described in Fig. 2 is in operation, its pump rotor 4 encloses Rotated around pump stator 3.Pump stator distribution surface 5 is oriented to enter charge level 6 towards pump rotor, and input-output mouthful 7 is fed with nine The rough alignment of hole 9, each charging hole 9 feeds hydraulic pump cylinder 54 via the feed pipe 10 of its own.
It should be noted that (it is located at highest point and we will temporarily be referred to as in the input-outlet 7 from Figure 12 and Figure 13 " upper port 7 ") in the pressure that applies do not diffuse into input-output mouthfuls 7 (it be positioned at position farthest in described Figure 12 and Figure 13 And we will temporarily be referred to as " lower port 7 "), this is due to continuous sealing ring 11 and is particularly due to compression-reduced pressure sealing Pad 28, it prevents oil from tangentially being transmitted between stator side ring surface 23 and the bottom of annular groove 16.
As shown in Figure 12, if there is upper port 7 highest to apply pressure (such as 1000 bars), and applied in lower port 7 Plus pressure it is relatively low (such as 10 bars), then local radial thrust is applied to stator side ring surface 23 by the elevated pressures, thrust Size is more than the thrust that the lower pressure applied in lower port 7 is applied to the face 23.
This thrust is unbalanced as a result, continuous sealing ring 11 is deformed and is firmly pressed in the region of upper port 7 On rotor-side low pressure seal surface 13, and the continuous loop 11 is kept with the surface 13 in the region of lower port 7 at a distance of several Micron or tens microns of distance.
It should be noted that corresponding to the load still very little of the radial thrust, because only in the small horizontal stroke in the face 23 Sectional areaS1On apply pressure on stator side ring surface 23, as shown in Figure 10.The cross-sectional areaS1In continuous sealing ring 11 design phase is determined, and is the two rings sealing that must be provided in annular groove 16 on every side of continuous sealing ring 11 The result of the deliberate axial dipole field produced between face 18 and the line vertical with the circumference 15 of contact, the shape of circumference 15 of contact Each surface into the sealing surface 18 on rotor side ring surface 22.In this respect, it should be noted that appropriate in such as Figure 10 Shown in ground, it is continuously close that the circumference 15 of contact is oriented to direction more farther in the axial direction than the ring sealing surface 18 that line 15 is cooperated The inside of seal ring 11, to produce required local radial thrust on stator side ring surface 23.
Therefore, it is being provided between two ring sealing surfaces 18 and the line vertical with the circumference 15 of contact and determine transversal AreaS1Axial dipole field it is meant that the pressure applied in annular groove 16 effectively by the line 15 firmly be pressed in pump rotor charging On face 6.This tend to be formed the line 15 and it is described enter charge level 6 between sealing, and simultaneously the line 15 and the face 6 it Between contact position produce seldom contact load, and therefore produce seldom friction loss.It should be noted that turning in the line 15 and pump The contact for the contact position that son enters between charge level 6 is substantially dependent on the width for the contact that the line 15 is made with the face 6, The width also depends on the deliberate selection made in the design of continuous sealing ring 11.
It can be seen from fig. 10 that on the one hand by ring sealing lip 39, (it keeps connecing with ring sealing surface 18 due to elasticity Touch), and on the other hand by transverse sealing pad 27, realize the ring sealing surface 18 shown by annular groove 16 with by continuous sealing ring Sealing between the ring sealing shoulder 20 of 11 displays.Therefore, the lip 39 prevents the seal 27 to be squeezed, even in very Under high pressure (such as 2000 bars), and the pad provides perfect sealing.
Find out in fig. 12, due to deformation of the continuous sealing ring 11 in the region of lower port 7, rotor side ring surface 22 is kept With rotor-side low pressure seal surface 13 at a distance of several microns or tens microns of distance.In the angle sector shared by the lower port 7 In, therefore firmly extrusion pump rotor enters charge level 6 to the circumference 15 of contact, and therefore do not provide any sealing.
Therefore, only by staying in several microns between stator side low pressure seal surface 12 and rotor-side low pressure seal surface 13 Or tens microns of small―gap suture, realize the sealing that the lower port 7 and pump rotor enter between charge level 6.Particularly by surface 12,13 High accuracy processing obtain the small―gap suture, (be here according to the example of selection yet with the low pressure applied in lower port 7 10 bars), the leakage stream still very little transmitted between the surface 12,13.The energy loss associated with the leakage stream because This can be ignored.
It will be appreciated that Figure 13 shows that there is relatively low application pressure (such as 10 bars) and lower port 7 to have is higher when upper port 7 Application pressure (such as 1000 bars) when, the deformation of continuous sealing ring 11, continuous sealing ring 11 work mode keep constant.
It is stated that, fan-shaped compression-decompression honeycomb chamber 25 is particularly illustrated in Fig. 8, Figure 12 and Figure 13, it is in the hole 9 Leave and good sealing between charging hole 9 and compression-decompression track 24 is provided after the angle sector shared by upper port 7.Institute State honeycomb chamber 25 also visible in Fig. 5 three dimensions and in Figure 11 schematic cross-section.
In fact, according to the example for being used to illustrate how to be worked according to the sealing ring 1 of the present invention considered here, hydraulic pump Cylinder 54 sucks oil under 10 bars from lower port 7, and conveys oil in upper port 7 under 1000 bars.Therefore, when any charging hole 9 Via compression-decompression track 24 from upper port 7 be transformed into lower port 7 when, hydraulic pump cylinder 54 and be connected to the charging hole 9 The oil included in feed pipe 10 is needed by decompression step by step (expansion).In this expansion process, compressed that (oil can be pressed in oil Contracting) when the energy that is stored of the oil can mechanically be reclaimed by hydraulic pump 44.This function to the pump 44 for assigning Good energy efficiency is necessary.
When due to the rotation of pump rotor 4, charging hole 9 leaves upper port 7 to start to follow during compression-decompression track 24, so far The hole 9 that the present has placed the upper port 7 finds itself to be closed by the track 24, and upper port 7 is via the charging of its own Pipe 10 is connected with corresponding hydraulic pump cylinder 54.It is contained therein as the mechanism of hydraulic pump 44 increases the volume of hydraulic pump cylinder 54 Oil expansion, and start to export the energy stored in the oily compression process to the pump 44 with mechanical type.
Charging hole 9 continues on compression-decompression track 24 and set out until it runs into first fan-shaped compression-vent 26, fan The track 24 is connected to by shape compression-vent 26 to be subtracted positioned at the fan-shaped compression-sector immediately below vent 26 is compressed- Press closing and sealed volume that honeycomb chamber 25 is limited.
Therefore, this is to return to the configuration shown in Figure 11, and this has the pressure that will apply in hydraulic pump cylinder 54 The closing and the direct effect of sealed volume are diffused into, closing and the radial cross-section of sealed volume are noticeably greater than charging The radial cross-section in hole 9.Describe resulting differential radial cross-sectional area in fig. 11S2.It should be noted that based on sealing with rubbing Wear compromise between losing, determined during the design phase of continuous sealing ring 11S2。
Due to differential radial cross-sectional areaS2, compression-decompression track 24 finds to exert oneself to be pressed in rotor-side self by pressure On low pressure seal surface 13, charging hole 9 is opened on rotor-side low pressure seal surface 13.This is formed in compression-decompression track 24 The sealing around charging hole 9 between rotor-side low pressure seal surface 13, firmly the surface 13 is pressed in by the track 24 On load be higher than the pressure that applies in hydraulic pump cylinder 54.
Thus, it will be understood that as charging hole 9 is progressively advanced along compression-decompression track 24, the volume of hydraulic pump cylinder 54 increases Plus, and the oil mass that the cylinder 54 is included does not increase.This is determined by the mechanism of hydraulic pump 44.Its result is strictly described The expansion of oil and the recovery of the energy previously stored in its compression process.
When the charging hole 9 reaches next fan-shaped compression-vent 26, compression-decompression track 24 is firmly pressed in Identical principle on rotor-side low pressure seal surface 13 occurs, but at lower pressures etc., until the charging hole 9 is arrived Up to lower port 7.
It should be noted that the non-limiting embodiment party of the sealing ring 1 according to the present invention according to Fig. 8, Figure 12 and Figure 13 Case, the angle skew between two fan-shaped compression-vents 26 and the diameter in the hole is calculated in this way：It is same Charging hole 9 can not be located at towards two fan-shaped compression-vents 26 simultaneously.In order to increase fan-shaped compression-vent 26 Quantity, and therefore increase the quantity of fan-shaped compression-vent 26, it should be noted that, it may be possible to provide charging hole 9, it is in the axial direction In Long Circle, and can at least two rows it is interconnected in be separated, it is interconnected to pass through non-limiting examples Mode be applied to fan-shaped compression-vent 26.
In addition, especially in Figure 5 the geometry of shown fan-shaped compression-decompression honeycomb chamber 25 be it is nonrestrictive, And may be different to another honeycomb chamber 25 from a honeycomb chamber 25.In fact, the selection of the geometry needs It is notified on demand, on the one hand, to produce the optimal possibility between compression-decompression track 24 and rotor-side low pressure seal surface 13 Sealing, and on the other hand, with produce between the track 24 and the surface 13 it is minimum can energy friction.
It can in fig. 11 find out and result from ring sealing surface 18 and the horizontal stroke of the axial dipole field of the out of plumb of circumference 15 contacted Sectional areaS1, the skew is provided in the angular region of the continuous sealing ring 11 shared by compression-decompression track 24, as skew On the remainder for being provided at the circumference of continuous sealing ring 11.The cross-sectional areaS1Allow on the axial side of the track 24 Sealing at edge is improved.
It has to be understood that, foregoing description is only provided by way of example, and in the thin of described embodiment In the case that section is replaced by any other equivalent details, foregoing description does not limit this hair not past scope in any way Bright field.

Claims (26)

1. a kind of sealing ring (1) for hydraulic pressure pump dispenser, the hydraulic pressure pump dispenser is designed to may include hydraulic pump (44) pressure distributor (2), the distributor (2) includes at least one pump stator distribution surface fixed to pump stator (3) (5), the distribution surface (5) has stator side low pressure seal surface (12), is opened from the stator side low pressure seal surface (12) At least two input-outputs mouthful (7) formed in the pump stator (3), and it is each in the input-output mouthful (7) With specific to the input-output mouthful (7) and being similarly formed at least one internal input-output pipe of the stator (3) (8) connect, the distributor (2) also includes at least one pump rotor fixed to pump rotor (4) and enters charge level (6), the charging Face (6) has rotor-side low pressure seal surface (13), and at least one charging is opened from the rotor-side low pressure seal surface (13) Hole (9), the charging hole (9) connects with being formed in the internal feed pipe (10) of the rotor (4), and the stator side low pressure is close Envelope surface (12) is oriented to towards the rotor-side low pressure seal surface (13) so that the pump rotor (4) often goes to few one Secondary, the charging hole (9) is alternately towards one or the other in described two input-outputs mouthful (7), it is characterised in that bag Include：
At least one continuous sealing ring (11), it is contained in annular groove (16) with a small amount of axially and/or radially gap, described The pump stator (3) of annular groove (16) formation inside the surface region limited by the stator side low pressure seal surface (12) In, the continuous sealing ring (11), which has, is contained in the internal stator side ring surface (23) of the annular groove (16), and with it is described fixed The rotor side ring surface (22) that sub- side low pressure seal surface (12) flushes, and the input-output mouthful (7) is via the annular groove (16) It is opened on the sealing surfaces (12), the continuous sealing ring (11) is on axially or radially than the input-output mouthful (7) Width is open to cover the input-output mouthful (7) including at least one distribution being axially or radially aligned therewith (21) it is, described to be distributed opening (21) on the direction of its thickness directly through the continuous sealing ring (11), when the charging hole (9) when towards the input-output mouthful (7), the distribution opening (21) can place connected with the charging hole (9) described One in two input-outputs mouthful (7)；
At least one circular contact sleeve (14), it is axially or radially formed on every side in the distribution opening (21), The circular contact sleeve (14) has the circumference (15) that can be contacted with the rotor-side low pressure seal surface (13)；
At least one compresses-depressurized track (24), and it is formed on certain angle sector of the rotor side ring surface (22), institute State the outside of the part for the rotor side ring surface (22) that angle sector location is located in the distribution opening (21)；
At least one ring sealing lip (39), it may or may not be fixed to the continuous sealing ring (11), and perform institute State the axially or radially sealing between continuous sealing ring (11) and the annular groove (16)；
At least one compression-reduced pressure sealing pad (28), it performs the stator side ring surface (23) and the annular groove (16) Sealing between bottom and/or axially or radially side, and forming superincumbent described by the compression-decompression track (24) So done in the angular region that angle sector is limited；
Anti-rotation device (36), it makes the continuous sealing ring (11) be maintained at the fixed angles position relative to the pump stator (3) Put.
2. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the annular groove (16) includes In the ring bearing face (17) being oriented on the side at a right angle with the stator side low pressure seal surface (12), the ring bearing The ring bearing shoulder (19) that face (17) includes with the continuous sealing ring (11) cooperates.
3. the sealing ring according to claim 2 for hydraulic pressure pump dispenser, it is characterised in that the annular groove (16) includes In the ring sealing surface (18) being oriented on the side at a right angle with the stator side low pressure seal surface (12), the ring sealing Face (18) cooperates with the ring sealing shoulder (20) that the continuous sealing ring (11) includes.
4. the sealing ring according to claim 3 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing lip (39) To seal the flexible metal blade of shoulder (20) fixed to the ring.
5. the sealing ring according to claim 3 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing lip (39) It is positioned above the extendible portion of ring sealing shoulder (20), below or the inside.
6. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing lip (39) It is made up of the transverse sealing pad (27) being made of flexible material, the flexible material is kept and the annular groove (16) and described fixed Sub- side ring surface (23) contacts simultaneously.
7. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the compression-reduced pressure sealing Pad (28) has at least one fan-shaped compression-decompression honeycomb chamber (25), the honeycomb chamber (25) and the stator side ring surface (23) and the annular groove (16) the bottom and/or axially or radially side limit together closing and sealed volume.
8. the sealing ring according to claim 7 for hydraulic pressure pump dispenser, it is characterised in that the compression-reduced pressure sealing Pad (28) includes the fan-shaped compression-decompression honeycomb chamber (25) reinforcement alveolate texture (40) formed therein, the honeybee Nest shape structure (40) is produced with rigid material (42), and the anti-rotation device (36) can be used directly or indirectly to be maintained at Relative to the appropriate position of the continuous sealing ring (11), and the rigid material (42) scribbles flexible material completely or partially (43), the flexible material (43) on the one hand contacts with the stator side ring surface (23), and/or another aspect and the annular groove (16) the bottom and/or the axially or radially side contacts.
9. the sealing ring according to claim 8 for hydraulic pressure pump dispenser, it is characterised in that the cellular knot of the reinforcement Structure (40) is incorporated to the stator side ring surface (23) and by being made with continuous sealing ring (11) the identical material.
10. the sealing ring according to claim 7 for hydraulic pressure pump dispenser, it is characterised in that the compression-decompression rail Road (24) has at least one fan-shaped compression-vent (26), and fan-shaped compression-relief pipe (41) compresses via the sector-subtracts Hole (26) are pressed to open, the institute that fan-shaped compression-relief pipe (41) connection is limited by the fan-shaped compression-decompression honeycomb chamber (25) State closing and sealed volume and the rotor side ring surface (22), the fan-shaped compression-vent (26) in this way by Positioning：Once, the charging hole (9) finds itself towards the fan-shaped compression-vent (26) to every turn of the pump rotor (4), Fan-shaped compression-the vent (26) and then the feed pipe (10) is connected to via the fan-shaped compression-relief pipe (41) The sealed volume.
11. the sealing ring according to claim 6 for hydraulic pressure pump dispenser, it is characterised in that the transverse sealing pad And the compression-reduced pressure sealing pad (28) only forms a single component (27).
12. the sealing ring according to claim 3 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing surface (18) It is oriented to vertical with the circumference (15).
13. the sealing ring according to claim 3 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing surface (18) Be oriented to it is vertical with the circumference (15), and the ring bearing face (17) than the ring sealing surface (18) further from the ring The bottom of groove (16) and the distribution opening (21) so that the ring sealing surface (18) and the circumference (15) out of plumb Skew.
14. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the axle of the annular groove (16) At least one axial face for installing band (34) by the ring fitted closely over around the pump stator (3) into face is formed.
15. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the pump stator distribution surface (5) and the pump rotor to enter charge level (6) be cylinder, and at least one in the input-output mouthful (7) is with forming described At least one radial load compensating port (30) cooperation in pump stator (3), the compensating port (30) is from the pump stator distribution surface (5) open and enter charge level (6) towards the pump rotor, the compensating port (30) be also located in the stator (3) with it is described At the input-output mouthful (7) diametrically opposite that compensating port (30) is cooperated, and pass through radial load compensation pipe (31) The input-output pipe (8) is connected to, the input-output that the compensating port (30) cooperates mouthful (7) is connected to described Input-output pipe (8).
16. the sealing ring according to claim 15 for hydraulic pressure pump dispenser, it is characterised in that the compensating port (30) Opened via radial load compensating tank (29) from the pump stator distribution surface (5), radial load compensation sealing plate (32) is with a small quantity Axial direction and/or tangential gap be contained in the radial load compensating tank (29).
17. the sealing ring according to claim 16 for hydraulic pressure pump dispenser, it is characterised in that the radial load is mended Repay sealing plate (32) to be open (48) directly through compensation on the direction of its thickness, the compensation opening (48) is placed and the pump Rotor enters the radial load compensation pipe (31) of charge level (6) connection.
18. the sealing ring according to claim 16 for hydraulic pressure pump dispenser, it is characterised in that the radial load is mended Repay groove (29) and be included in the plate bearing-surface being oriented on the side at a right angle with the stator side low pressure seal surface (12) (49), the plate bearing-surface (49) cooperates with the plate support shoulder (51) that the radial load compensation sealing plate (32) includes.
19. the sealing ring according to claim 18 for hydraulic pressure pump dispenser, it is characterised in that the radial load is mended Repay groove (29) and be included in the plate sealing surface being oriented on the side at a right angle with the stator side low pressure seal surface (12) (50), the plate sealing surface (50) cooperates with the plate sealing shoulder (52) that the radial load compensation sealing plate (32) includes.
20. the sealing ring according to claim 16 for hydraulic pressure pump dispenser, it is characterised in that the radial load is mended Sealing plate (32) is repaid with the compensating plate sealing lip (45) of the radial load compensation sealing plate (32) may or may not be fixed to Cooperation, the compensating plate sealing lip (45) performs the radial load compensation sealing plate (32) and the radial load compensating tank (29) axially and/or radially and/or tangentially sealing between.
21. the sealing ring according to claim 20 for hydraulic pressure pump dispenser, it is characterised in that the ring sealing lip (39) be made up of the flexible compensation gasket seal (33) being made of flexible material, the flexible material keep simultaneously with the radial direction Load compensation groove (29) and the radial load compensation sealing plate (32) contact.
22. the sealing ring for hydraulic pressure pump dispenser according to claim 16 or 17, it is characterised in that the radial direction is carried Lotus compensation sealing plate (32) includes forming at least one compensation peripheral contacts sleeve (46) in its periphery, and the compensation periphery connects Tactile sleeve (46) has can enter the compensation object-line (47) that charge level (6) is contacted with the pump rotor.
23. the sealing ring according to claim 19 for hydraulic pressure pump dispenser, it is characterised in that the plate sealing surface (50) it is oriented to vertical with the compensation object-line (47).
24. the sealing ring according to claim 19 for hydraulic pressure pump dispenser, it is characterised in that the plate sealing surface (50) be oriented to it is described compensation object-line (47) it is vertical, and the plate bearing-surface (49) than the sealing surface (50) further from The bottom of the radial load compensating tank (29) and the compensation opening (48) so that the plate sealing surface (50) with it is described Compensate the skew of object-line (47) out of plumb.
25. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the distribution opening (21) Including at least one tie-beam (56), the tie-beam (56) makes the circular contact sleeve (14) link together, the company Beam (56) is connect to limit at least one distribution son opening (57) on the either side of its length.
26. the sealing ring according to claim 1 for hydraulic pressure pump dispenser, it is characterised in that the anti-rotation device (36) The pin (35) rotated by least one anti-ring is constituted, and on the one hand insertion is formed in the pump stator pin (35) of the anti-ring rotation (3) pin-and-hole (37) of the anti-stator rotation in, and be on the other hand inserted in the side of its thickness and be upward through the continuous sealing The pin-and-hole (38) of the anti-ring rotation of ring (11).
CN201480053212.4A 2013-09-25 2014-09-22 Sealing ring for hydraulic pressure pump dispenser Active CN105593519B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1359250A FR3011045B1 (en) 2013-09-25 2013-09-25 SEAL RING FOR HYDRAULIC PUMP DISPENSER
FR1359250 2013-09-25
PCT/FR2014/052352 WO2015044571A1 (en) 2013-09-25 2014-09-22 Sealing ring for a hydraulic pump distributor

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CN105593519A CN105593519A (en) 2016-05-18
CN105593519B true CN105593519B (en) 2017-10-24

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JP (1) JP6387088B2 (en)
KR (1) KR102254259B1 (en)
CN (1) CN105593519B (en)
AU (1) AU2014326490B2 (en)
CA (1) CA2925485C (en)
ES (1) ES2670551T3 (en)
FR (1) FR3011045B1 (en)
WO (1) WO2015044571A1 (en)

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CN109989898A (en) * 2019-05-15 2019-07-09 梁德荣 Inclined seal ring flow-distribution mechanism, axial piston motor and axial plunger pump

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Also Published As

Publication number Publication date
KR102254259B1 (en) 2021-05-20
FR3011045B1 (en) 2015-10-30
KR20160058901A (en) 2016-05-25
FR3011045A1 (en) 2015-03-27
ES2670551T3 (en) 2018-05-30
CA2925485A1 (en) 2015-04-02
AU2014326490A1 (en) 2016-05-12
WO2015044571A1 (en) 2015-04-02
AU2014326490B2 (en) 2018-01-25
CA2925485C (en) 2019-04-02
JP2016539285A (en) 2016-12-15
JP6387088B2 (en) 2018-09-05
CN105593519A (en) 2016-05-18
EP3049671B1 (en) 2018-03-14
EP3049671A1 (en) 2016-08-03

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