CN108087271A - Pump assembly and with its compressor - Google Patents
Pump assembly and with its compressor Download PDFInfo
- Publication number
- CN108087271A CN108087271A CN201711093208.2A CN201711093208A CN108087271A CN 108087271 A CN108087271 A CN 108087271A CN 201711093208 A CN201711093208 A CN 201711093208A CN 108087271 A CN108087271 A CN 108087271A
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- China
- Prior art keywords
- arc slot
- back pressure
- pump assembly
- cylinder
- slide plate
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of pump assembly and with its compressor.Wherein, pump assembly, including：Structural member, structural member are two, and at least one structural member has a back pressure oil structure, and back pressure oil structure is back pressure arc slot, and the radian number of back pressure arc slotMore than or equal to 220 °；Cylinder is arranged between two structural members；Shaft, through two structural members and cylinder, and the rotor portions of shaft have multiple sliding vane grooves；Multiple slide plates, it is slideably correspondingly arranged in multiple sliding vane grooves, part or all of back pressure arc slot is connected with sliding vane groove, and lubricant medium can enter in back pressure arc slot to adjust the pressure in the afterbody of sliding vane groove, ensure that the head of slide plate contacts always with the inner wall of cylinder.Present invention efficiently solves pump assembly in the prior art slide plate head easily with the inner wall of cylinder depart from, cause pump assembly working performance reduce the problem of.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of pump assembly and with its compressor.
Background technology
In pump assembly operational process, in order to ensure that slide plate can successfully be stretched out out of sliding vane groove, it will usually in cunning
The afterbody of piece sets back pressure cavity (the slide plate tail chamber and upper and lower flange back pressure slot formed by slide plate and sliding vane groove is formed), and by oil
High pressure or middle pressure oil (generating restriction effect by circulation passage) in pond are passed through in back pressure cavity to act power to slide plate, should
Active force is used to overcome the frictional force that gas pressure and cylinder are generated with slide plate head in the front and rear cavity residing for the head of slide plate
Deng head and the cylinder inner wall disengaging of anti-slip limiting plate.
However, when in the front and rear cavity residing for slide plate head gas pressure reach pressure at expulsion and be even above pressure at expulsion
When (since cylinder is provided outside exhaust valve plate, overcompression can be carried out to cylinder interior gas), the back pressure of slide plate afterbody is easily caused not
Foot so that the head of slide plate and the inner wall of cylinder depart from cooperation, cause gas (i.e. adjacent cavity company of leaping up in the inner cavity of cylinder
It is logical), and then the work efficiency of pump assembly is influenced, reduce the working performance of pump assembly.Meanwhile the inner wall of slide plate and cylinder
Shock can be generated when being contacted again after disengaging, causes the noise of pump assembly to increase, mechanical energy consumption increases, and reliability reduces.
The content of the invention
It is a primary object of the present invention to provide a kind of pump assembly and with its compressor, to solve in the prior art
The head of the slide plate of pump assembly easily with the inner wall of cylinder depart from, cause pump assembly working performance reduce the problem of.
To achieve these goals, according to an aspect of the invention, there is provided a kind of pump assembly, including：Structural member,
Structural member is two, and at least one structural member has a back pressure oil structure, and back pressure oil structure is back pressure arc slot, and the arc of back pressure arc slot
Number of degrees φ 1 is more than or equal to 220 °；Cylinder is arranged between two structural members；Shaft through two structural members and cylinder, and turns
The rotor portions of axis have multiple sliding vane grooves；Multiple slide plates are slideably correspondingly arranged in multiple sliding vane grooves, are partly or entirely carried on the back
Pressure arc slot is connected with sliding vane groove, and lubricant medium can enter in back pressure arc slot to adjust the pressure in the afterbody of sliding vane groove, protect
The head of card slide plate contacts always with the inner wall of cylinder.
Further, the radian number φ 1 of back pressure arc slot meets 1≤340 ° of 220 °≤φ.
Further, the radian number φ 1 of back pressure arc slot meets 1≤320 ° of 260 °≤φ.
Further, back pressure arc slot is end to end to form annular groove.
Further, annular groove includes interconnected the first arc slot section and the second arc slot section, and the arc of the first arc slot section
The sum of radian number φ 3 of 2 and second arc slot sections of number of degrees φ is equal to the radian number φ 1 of back pressure arc slot, the radian number of the first arc slot section
φ 2 meets 2≤340 ° of 220 °≤φ.
Further, the radian number φ 2 of the first arc slot section meets 2≤320 ° of 260 °≤φ.
Further, the width of the first arc slot section is more than the width of the second arc slot section.
Further, the ratio between cross-sectional area A 2 of 1 and second arc slot section of cross-sectional area A of the first arc slot section satisfaction
Further, the ratio between cross-sectional area A 2 of 1 and second arc slot section of cross-sectional area A of the first arc slot section satisfaction
Further, the ratio between cross-sectional area A 2 of 1 and second arc slot section of cross-sectional area A of the first arc slot section satisfaction
Further, the afterbody of sliding vane groove to the outer surface of rotor portions beeline L >=5mm.
Further, shaft has center oilhole connected in sequence and radial direction oil hole, and radial direction oil hole is connected with back pressure arc slot.
Further, two structural members are respectively upper flange and lower flange, back pressure arc slot be arranged on upper flange towards gas
On the lower face of cylinder；And/or back pressure arc slot is arranged on the upper surface towards cylinder of lower flange.
According to another aspect of the present invention, a kind of compressor is provided, including above-mentioned pump assembly.
It applies the technical scheme of the present invention, pump assembly includes structural member, cylinder, shaft and multiple slide plates.Wherein, structure
Part is two, and at least one structural member has a back pressure oil structure, and back pressure oil structure is back pressure arc slot, and the radian number of back pressure arc slot
φ 1 is more than or equal to 220 °.Cylinder is arranged between two structural members.Shaft passes through two structural members and cylinder, and turn of shaft
Sub-portion has multiple sliding vane grooves.Multiple slide plates are slideably correspondingly arranged in multiple sliding vane grooves, part or all of back pressure arc slot
It is connected with sliding vane groove, lubricant medium can enter in back pressure arc slot to adjust the pressure in the afterbody of sliding vane groove, ensure slide plate
Head contacted always with the inner wall of cylinder.In this way, air-breathing, compression and exhaust phase are carried out in pump assembly, back pressure arc slot
The above-mentioned setting of radian number φ 1 can be further ensured that the head of slide plate contacts always with the holding of the inner wall of cylinder, and then improve
The functional reliability of pump assembly prevents that connection occurs and influences the work efficiency of pump assembly between adjacent chamber.
In pump assembly operational process, lubricant medium can be entered to by back pressure arc slot in sliding vane groove, with to slide plate
Pressure in the afterbody of slot is adjusted, and ensures the afterbody of sliding vane groove and has sufficiently large pressure, that is, ensures the afterbody of sliding vane groove
Interior pressure is consistently greater than or the pressure that is subject to of head equal to slide plate, so that the head of slide plate is protected always with the inner wall of cylinder
Contact is held, and then improves the functional reliability of pump assembly.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the decomposition texture schematic diagram of the embodiment one of pump assembly according to the present invention；
Fig. 2 shows the sectional view of the pump assembly in Fig. 1；
Fig. 3 shows enlarged diagram at the A of the pump assembly in Fig. 2；
Fig. 4 shows the bottom view of the upper flange of the pump assembly in Fig. 1；
Fig. 5 shows the top view of the lower flange of the pump assembly in Fig. 1；
Fig. 6 shows the structure diagram of the back pressure arc slot of the pump assembly in Fig. 1；
Fig. 7 shows the perspective view when afterbody of the sliding vane groove of the pump assembly in Fig. 1 is connected with back pressure arc slot；
Fig. 8 shows that the afterbody of the sliding vane groove of the pump assembly in Fig. 1 departs from the perspective view of moment with back pressure arc slot；
Fig. 9 shows that the afterbody of the sliding vane groove of the pump assembly in Fig. 1 connects the perspective view of moment with back pressure arc slot；
Figure 10 shows the stressing conditions figure during slide plate stretching sliding vane groove in Fig. 7；
Figure 11 shows the top view of the rotor portions in Figure 10；
Figure 12 shows the bottom view of the upper flange of the embodiment two of pump assembly according to the present invention；
Figure 13 shows the top view of the lower flange of the embodiment two of pump assembly according to the present invention；
Figure 14 shows the structure diagram of the back pressure arc slot of the embodiment two of pump assembly according to the present invention；
Figure 15 shows the partial sectional view of the first arc slot section of the back pressure arc slot in Figure 14；
Figure 16 shows the partial sectional view of the second arc slot section of the back pressure arc slot in Figure 14；
Figure 17 shows that the afterbody of the sliding vane groove of the embodiment two of pump assembly according to the present invention is connected with back pressure arc slot
When perspective view；
Figure 18 shows that the afterbody of the sliding vane groove of the embodiment two of pump assembly according to the present invention and back pressure arc slot depart from
The perspective view of moment；
Figure 19 shows that the afterbody of the sliding vane groove of the embodiment two of pump assembly according to the present invention is connected with back pressure arc slot
The perspective view of moment；
Figure 20 shows the radian number of back pressure arc slot and the correspondence curve of efficiency；
Figure 21 shows the correspondence curve of the ratio between the first arc slot section and the second arc slot section cross-sectional area with efficiency；And
Figure 22 shows the correspondence curve of slide plate amount of bias and power consumption.
Wherein, above-mentioned attached drawing is marked including the following drawings：
11st, back pressure arc slot；111st, the first arc slot section；112nd, the second arc slot section；12nd, upper flange；13rd, lower flange；20th, gas
Cylinder；21st, inner cavity；30th, shaft；31st, rotor portions；311st, sliding vane groove；312nd, escape；32nd, center oilhole；33rd, radial direction oil hole；
311st, sliding vane groove；40th, slide plate；50th, gear oil pump.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application
The normally understood identical meanings of person of an ordinary skill in the technical field.
In the present invention, in the case where not making explanation on the contrary, the noun of locality used is as " upper and lower " typically for attached drawing
For shown direction or on vertical, vertical or gravity direction；Similarly, for ease of understanding and retouch
It states, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the inside and outside of the profile compared with each component in itself,
But the above-mentioned noun of locality is not intended to limit the invention.
Easily depart to solve the head of the slide plate of pump assembly in the prior art with the inner wall of cylinder, cause pump assembly
Working performance the problem of reducing, this application provides a kind of pump assembly and with its compressor.
Embodiment one
As shown in Figures 1 to 6, pump assembly includes structural member, cylinder 20, shaft 30 and multiple slide plates 40.Wherein, structure
Part is two, and at least one structural member has a back pressure oil structure, and back pressure oil structure is back pressure arc slot 11, and the arc of back pressure arc slot 11
Number of degrees φ 1 is more than or equal to 220 °.Cylinder 20 is arranged between two structural members.Shaft 30 passes through two structural members and cylinder 20,
And the rotor portions 31 of shaft 30 have multiple sliding vane grooves 311.Multiple slide plates 40 are slideably correspondingly arranged at multiple sliding vane grooves 311
Interior, part or all of back pressure arc slot 11 is connected with sliding vane groove 311, and lubricant medium can be entered in back pressure arc slot 11 and slided with adjusting
Pressure in the afterbody of film trap 311 ensures that the head of slide plate 40 contacts always with the inner wall of cylinder 20.
Air-breathing, compression and exhaust phase are carried out in pump assembly, the above-mentioned setting of the radian number φ 1 of back pressure arc slot 11 can
It is further ensured that the head of slide plate 40 contacts always with the holding of the inner wall of cylinder 20, and then improves the reliable operation of pump assembly
Property, it prevents that connection occurs and influences the work efficiency of pump assembly between adjacent chamber.
In pump assembly operational process, lubricant medium can be entered to by back pressure arc slot 11 in sliding vane groove 311, with right
Pressure in the afterbody of sliding vane groove 311 is adjusted, and ensures the afterbody of sliding vane groove 311 and has sufficiently large pressure, that is, ensures to slide
Pressure in the afterbody of film trap 311 is consistently greater than or the pressure that is subject to of head equal to slide plate 40, so that the head of slide plate 40
Always contacted with the holding of the inner wall of cylinder 20, and then improve the functional reliability of pump assembly.
In the present embodiment, controlled by adjusting 1 values of radian number φ of back pressure arc slot 11 in the afterbody of sliding vane groove 311
Back pressure, pump assembly can be effectively ensured in the process of running, the head of slide plate 40 is in always with the inner wall of cylinder 20
Contact condition prevents the two from departing from the integrity problems such as chamber leakage, the shock of slide plate 40 before and after generation.
In the present embodiment, the above-mentioned setting of the radian number φ 1 of back pressure arc slot 11 can also cause structural member and slide plate 40
Between be stored with enough lubricant mediums, and then reduce the friction and abrasion between structural member and slide plate 40, extending structure part
And the service life of slide plate 40, and then extend the service life of pump assembly.
Optionally, the radian number φ 1 of back pressure arc slot 11 meets 1≤340 ° of 220 °≤φ.Further, back pressure arc slot 11
Radian number φ 1 meets 1≤320 ° of 260 °≤φ.In this way, in pump assembly operational process, the radian number φ 1 of back pressure arc slot 11
Above-mentioned setting can be further ensured that the head of slide plate 40 is remained with the inner wall of cylinder 20 and contact.As shown in figure 20, carry on the back
The above-mentioned numberical range of the radian number φ 1 of pressure arc slot 11 can also improve the efficiency of pump assembly, the head of anti-slip limiting plate 40 with
The contact force of the inner wall of cylinder 20 is excessive to cause slide plate 40 and the frictional heat energy of cylinder 20 excessive, even results in slide plate 40 and cylinder
20 are worn, and then improve the capacity usage ratio of pump assembly, extend the service life of pump assembly.
As shown in fig. 7, plane P crosses the center of rotation of rotor portions 31 and the point of contact of rotor portions 31 and cylinder 20, plane Q is with putting down
Face P is vertical and crosses the center of rotation of rotor portions 31, and back pressure arc slot 11 is symmetrical arranged along plane Q.In rotor portions 31 rotate around it
During the heart is rotated, the active force of gas gradually increases in the inner cavity 21 for the cylinder 20 that the head of slide plate 40 is subject to, sliding
The pressure of the ante-chamber and back cavity (compression chamber) of piece 40 gradually increases.As shown in figure 8, the inner cavity 21 that the head of slide plate 40 is subject at this time
The back pressure that the afterbody of interior gas load and slide plate 40 is subject to balances each other, between the head of slide plate 40 and the inner wall of cylinder 20
Contact force for 0, there are the risks that the head of slide plate 40 departs from the inner wall of cylinder 20 for subsequent time.The above situation in order to prevent
It generates, it is necessary to which the back pressure that the afterbody for improving slide plate 40 is subject to, then the afterbody of sliding vane groove 311 no longer connects with back pressure arc slot 11 at this time
Logical, i.e., the afterbody of sliding vane groove 311 departs from back pressure arc slot 11 so that the state that builds the pressure and (suppress oil) is formed in the afterbody of sliding vane groove 311,
And then the back pressure that the afterbody for increasing slide plate 40 is subject to, and then ensure that the stress of slide plate 40 makes a concerted effort to prolong along the radial direction of cylinder 20
It stretches, prevents lower a moment from the phenomenon that head of slide plate 40 is disengaged with the inner wall of cylinder 20 occurs, and then improve pump assembly
Functional reliability.
In this way, continue to rotate with shaft 30, as shown in figure 9, when the rotor portions 31 of shaft 30 are rotated to shown position
When, the head of slide plate 40 is tangent with the inner wall of cylinder 20 and its center line is in plane P, under the angle, the head of slide plate 40
One lateral pressure becomes air-breathing, and required back pressure reduces, while slide plate 40 starts to stretch out along sliding vane groove 311, and the afterbody of sliding vane groove 311 holds
Increase is accumulated, it is necessary to which lubricant medium is replenished in time, then needs to connect the afterbody of sliding vane groove 311 with back pressure arc slot 11, to ensure to slide
The afterbody of film trap 311 has sufficient lubricant medium.
As shown in figure 11, the afterbody of sliding vane groove 311 to the outer surface of rotor portions 31 beeline L >=5mm.Specifically,
The afterbody of sliding vane groove 311 to the outer surface of rotor portions 31 the power consumption that pump assembly can be influenced apart from size, and then influence the pump housing
The work efficiency of component.If above-mentioned distance is too short, when the load of pump assembly is excessive, the outer surface of rotor portions 31 easily becomes
Shape is excessive or even is broken, and affects the normal operation of slide plate 40, the final efficiency and reliability for influencing pump assembly.Most
The above-mentioned numberical range of short distance L can effectively ensure the structural reliability of rotor portions 31, and to the efficiency shadow of pump assembly
Ring the working performance for less, improving pump assembly.
Specifically, the distance between center of rotation of sliding vane groove 311 and shaft 30 is M, is referred to as slide plate amount of bias.In shaft
In the case that the outer diameters of 30 rotor portions 31 is certain, slide plate amount of bias M is bigger, the afterbody of slide plate 40 and the outer surface of rotor portions 31
Beeline L it is smaller.As shown in Figure 10, according to slide plate 40 in the lateral forces situation of pump assembly operational process, slide plate 40
It is subject to the power F2 of the power F1 and back cavity respectively from ante-chamber, the fulcrum D1 that slide plate 40 can be formed with sliding vane groove 311 in some angles
With fulcrum D2, fulcrum D1 with respect to sliding vane groove 311 for, be cantilever beam force structure.
As shown in figure 22, slide plate amount of bias M is bigger, then the mechanical consumption of pump assembly is smaller, and with slide plate amount of bias M
Increase, the change rate of the mechanical consumption of pump assembly also reduces.As slide plate amount of bias M (i.e. beeline L greatly to a certain extent
It is small to a certain extent), the appearance facial disfigurement of rotor portions 31 becomes larger, at the same be broken at beeline L possibility increase.
As shown in Figures 2 and 3, shaft 30 has center oilhole 32 connected in sequence and radial direction oil hole 33, radial direction oil hole 33
It is connected with back pressure arc slot 11.In this way, pump assembly uses inner flow passage structure type, i.e., by cylinder 20 and surrounding components
Portion sets the mode of runner, can save component and simplify pipeline connection, evades the arrangement of exterior line, occupies size and outer
The problems such as being deformed caused by during portion's pipeline welding.
Specifically, lubricant medium by the center oilhole 32 of shaft 30 into pump assembly, afterwards from center oilhole 32
The radial direction oil hole 33 of connection enters in back pressure arc slot 11, afterwards by back pressure arc slot 11 into the afterbody of sliding vane groove 311, with to cunning
The afterbody of piece 40 provides back pressure, and the head of anti-slip limiting plate 40 and the inner wall of cylinder 20 depart from, and then ensures pump assembly
Normal operation.Meanwhile lubricant medium can also be lubricated slide plate 40 and the contact surface of structural member, reduce therebetween
Contact wear extends the service life of pump assembly, and is cooled down to the inside of cylinder 20, cooled down, and improves pump assembly
Work efficiency, runnability.
As depicted in figs. 1 and 2, two structural members are respectively upper flange 12 and lower flange 13, and back pressure arc slot 11 is arranged on
The upper and lower flange 13 in the lower face towards cylinder 20 of flange 12 towards on the upper surface of cylinder 20.In this way, upper and lower flange leans on
It is peripherally disposed at nearly each position of centre bore to have back pressure arc slot 11, wherein the back pressure arc slot of upper and lower flange is about 11
It is arranged symmetrically, so that the back pressure that the afterbody of slide plate 40 is subject to is symmetrical arranged, will not be deviated there is a situation where slide plate 40, protected
The tight fit of slide plate 40 and sliding vane groove 311 is demonstrate,proved, prevents the situation of neighboring chambers gas connection.
Optionally, lubricant medium generally use lubricating fluid.In this way, lubricating fluid can be in back pressure arc slot 11, sliding vane groove 311
Flowing, and then promote the lubrication of lubricant medium, cooling effect.Optionally, lubricating fluid can be lubricating oil or water, emulsion etc.
Lubricating fluid.
In the accompanying drawings in unshowned other embodiment, back pressure arc slot is positioned only at the lower end towards cylinder of upper flange
On face.The peripherally disposed at the position of its centre bore of upper flange has back pressure arc slot, from the radial direction oil hole of shaft into
The lubricating oil entered is entered in back pressure arc slot, enters to sliding vane groove via back pressure arc slot afterwards, to adjust in the afterbody of sliding vane groove
Back pressure, and then ensure slide plate head be in contact always with cylinder.
In the accompanying drawings in unshowned other embodiment, back pressure arc slot is positioned only at the upper end towards cylinder of lower flange
On face.The peripherally disposed at the position of its centre bore of lower flange has back pressure arc slot, from the radial direction oil hole of shaft into
The lubricating oil entered is entered in back pressure arc slot, enters to sliding vane groove via back pressure arc slot afterwards, to adjust in the afterbody of sliding vane groove
Back pressure, and then ensure slide plate head be in contact always with cylinder.
Present invention also provides a kind of compressor (not shown), including above-mentioned pump assembly.Optionally, compressor is rotation
Vane compressor.Compressor further includes gear oil pump 50.During compressor operating, the afterbody of sliding vane groove 311 needs to provide
The lubricating oil of high pressure or middle pressure, for slide plate 40 to be driven to stretch out and it is made to be contacted with the inner wall holding of cylinder 20, to form closing
Compression chamber.Specifically, by gear oil pump 50 from the oil sump of compressor by center oilhole 32 of the lubricating oil Jing Guo shaft 30, footpath
Back pressure arc slot 11 is entered to the end clearance of oilhole 33, the escape 312 of rotor portions 31, structural member (upper and lower flange), and is passed through
It is entered to by back pressure arc slot 11 in the afterbody of sliding vane groove 311,
Optionally, the oil circuit of upper and lower flange is symmetrical.In this way, above-mentioned setting can ensure slide plate 40 in the axis along cylinder 20
Stress balance on line direction will not occur slide plate 40 311 bias internal of sliding vane groove the phenomenon that, improve the reliable of compressor
Property.
Embodiment two
The pump assembly of embodiment two and embodiment one difference lies in：The structure of back pressure arc slot 11 is different.
As shown in Figure 12 to Figure 14, back pressure arc slot 11 it is end to end to form annular groove.In this way, lubricant medium can be into
Enter to annular groove, and taken away in annular groove internal circulation flow and the heat in cylinder 20, and then reduce inside cylinder 20
Temperature cools down to cylinder 20, is cooled down, and improves the working performance of pump assembly.Meanwhile the structure of said structure is simple, holds
Easy processing, realization, and then reduce the processing cost of pump assembly.
As shown in Figure 12 to Figure 14, annular groove includes interconnected the first arc slot section 111 and the second arc slot section 112, and
The sum of the radian number φ 2 of first arc slot section 111 and the radian number φ 3 of the second arc slot section 112 are equal to the radian number of back pressure arc slot 11
φ 1, the radian number φ 2 of the first arc slot section 111 meet 2≤340 ° of 220 °≤φ.In this way, above-mentioned setting can effectively ensure that the pump housing
In the process of running, the head of slide plate 40, always in contact condition, prevents the two departs from from generating to component with the inner wall of cylinder 20
The integrity problems such as front and rear chamber leakage, the shock of slide plate 40.
Optionally, the radian number φ 2 of the first arc slot section 111 meets 2≤320 ° of 260 °≤φ.In this way, it is transported in pump assembly
During row, the above-mentioned setting of the radian number φ 2 of the first arc slot section 111 can be further ensured that the head of slide plate 40 and cylinder 20
Inner wall remain contact.As shown in figure 20, the above-mentioned numberical range of the radian number φ 2 of the first arc slot section 111 can also carry
The contact force of the efficiency of high pump assembly, the head of anti-slip limiting plate 40 and the inner wall of cylinder 20 is excessive to cause slide plate 40 and cylinder 20
Frictional heat energy it is excessive, even result in slide plate 40 and cylinder 20 be worn, so improve pump assembly capacity usage ratio, extend
The service life of pump assembly.
As shown in Figure 15 and Figure 16, the width of the first arc slot section 111 is more than the width of the second arc slot section 112.Optionally,
The groove depth of one arc slot section 111 is more than the groove depth of the second arc slot section 112.In this way, above-mentioned setting can ensure the afterbody of sliding vane groove 311
When being connected with the second arc slot section 112 so that the state that builds the pressure and (suppress oil) is formed in the afterbody of sliding vane groove 311, and then increases slide plate 40
The back pressure that is subject to of afterbody, ensure that the head of slide plate 40 contacts always with the holding of the inner wall of cylinder 20, improve pump assembly
Operational reliability.
In the present embodiment, the ratio between cross-sectional area A 2 of 1 and second arc slot section 112 of cross-sectional area A of the first arc slot section 111
MeetThe above-mentioned setting of the cross-sectional area of first arc slot section 111 and the second arc slot section 112 can ensure slide plate 40
Head remains with the inner wall of cylinder 20 and contacts.Ratio it is bigger, the back pressure of the afterbody of sliding vane groove 311 is suppressed oily effect and is got over
Substantially, it but can cause back pressure is excessive the head of slide plate 40 is caused to increase with the inner wall frictional force of cylinder 20 simultaneously, cause pump housing group
Part power consumption increases, and the efficiency of pump assembly is deteriorated.
Specifically, when larger back pressure is not required in the afterbody of sliding vane groove 311, the afterbody of sliding vane groove 311 and the first arc slot
Section 111 connects, contact friction force between the head of anti-slip limiting plate 40 and cylinder 20 it is too big and cause abrasion therebetween compared with
Greatly, friction energy-dissipating is reduced, and then improves the work efficiency of pump assembly；When the afterbody of sliding vane groove 311 need larger back pressure with
When ensureing that the head of slide plate 40 is contacted with the inner wall holding of cylinder 20, the afterbody of sliding vane groove 311 is connected with the second arc slot section 112,
And then formed and suppress oil condition, increase the back pressure of the afterbody of sliding vane groove 311, ensure the radial direction that the stress of slide plate 40 is made a concerted effort along cylinder 20
Direction extends, and prevents the phenomenon that head of slide plate 40 is disengaged with the inner wall of cylinder 20, and then improves pump assembly
Functional reliability.
Optionally, the ratio between cross-sectional area A 2 of 1 and second arc slot section 112 of cross-sectional area A of the first arc slot section 111 satisfactionFurther, the ratio between cross-sectional area A 2 of 1 and second arc slot section 112 of cross-sectional area A of the first arc slot section 111
MeetIn this way, in pump assembly operational process, the first arc slot section 111 is transversal with the second arc slot section 112
The above-mentioned setting of area can be further ensured that the head of slide plate 40 is remained with the inner wall of cylinder 20 and contact, and cause the pump housing
The efficiency of component is more preferable.As shown in figure 21, the above-mentioned ratio model of the cross-sectional area of the first arc slot section 111 and the second arc slot section 112
The efficiency of pump assembly can also be improved by enclosing, and the contact force of the head of anti-slip limiting plate 40 and the inner wall of cylinder 20 is excessive to cause slide plate
40 is excessive with the frictional heat energy of cylinder 20, even results in slide plate 40 and cylinder 20 is worn, and then improves the energy of pump assembly
Utilization rate extends the service life of pump assembly.
As shown in figure 17, plane P crosses the center of rotation of rotor portions 31 and the point of contact of rotor portions 31 and cylinder 20, plane Q with
Plane P is vertical and crosses the center of rotation of rotor portions 31, and back pressure arc slot 11 is symmetrical arranged along plane Q.It is rotated around it in rotor portions 31
During center is rotated, the active force of gas gradually increases in the inner cavity 21 for the cylinder 20 that the head of slide plate 40 is subject to,
The pressure of the ante-chamber and back cavity (compression chamber) of slide plate 40 gradually increases.As shown in figure 18, at this time the head of slide plate 40 be subject to it is interior
The back pressure that the afterbody of gas load and slide plate 40 in chamber 21 is subject to balances each other, the head of slide plate 40 and the inner wall of cylinder 20
Between contact force for 0, there are the risks that the head of slide plate 40 departs from the inner wall of cylinder 20 for subsequent time.It is above-mentioned in order to prevent
Situation is generated, it is necessary to the back pressure that the afterbody for improving slide plate 40 is subject to, then the afterbody of sliding vane groove 311 and the first arc slot section at this time
111 depart from and are connected with the second arc slot section 112, and the circulation area of lubricant medium reduces, and form opposite oily effect of suppressing, and increase is slided
The back pressure of the afterbody of film trap 311, and then ensure that the stress of slide plate 40 makes a concerted effort to extend along the radial direction of cylinder 20, prevent lower a moment
The phenomenon that head of slide plate 40 is disengaged with the inner wall of cylinder 20 occurs, and then improves the functional reliability of pump assembly.
In this way, continue to rotate with shaft 30, as shown in figure 19, when the rotor portions 31 of shaft 30 are rotated to shown position
When, the head of slide plate 40 is tangent with the inner wall of cylinder 20 and its center line is in plane P, under the angle, the head of slide plate 40
One lateral pressure becomes air-breathing, and required back pressure reduces, while slide plate 40 starts to stretch out along sliding vane groove 311, and the afterbody of sliding vane groove 311 holds
Product increase then needs to depart from the afterbody of sliding vane groove 311 and the second arc slot section 112 and with the, it is necessary to lubricant medium is replenished in time
One arc slot section 111 connects, to ensure that the afterbody of sliding vane groove 311 has sufficient lubricant medium.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
Air-breathing, compression and exhaust phase are carried out in pump assembly, and the above-mentioned setting of the radian number φ 1 of back pressure arc slot can be into
One step ensures that the head of slide plate contacts always with the holding of the inner wall of cylinder, and then improves the functional reliability of pump assembly, prevents
Connection occurs between adjacent chamber and influences the work efficiency of pump assembly.
In pump assembly operational process, lubricant medium can be entered to by back pressure arc slot in sliding vane groove, with to slide plate
Pressure in the afterbody of slot is adjusted, and ensures the afterbody of sliding vane groove and has sufficiently large pressure, that is, ensures the afterbody of sliding vane groove
Interior pressure is consistently greater than or the pressure that is subject to of head equal to slide plate, so that the head of slide plate is protected always with the inner wall of cylinder
Contact is held, and then improves the functional reliability of pump assembly.
Obviously, above-mentioned described embodiment is only the embodiment of a present invention part, instead of all the embodiments.
Based on the embodiments of the present invention, what those of ordinary skill in the art were obtained without making creative work is all
Other embodiment should all belong to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag
Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that it so uses
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein
Or the order beyond those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of pump assembly, which is characterized in that including：
Structural member, the structural member are two, and at least one structural member has back pressure oil structure, and the back pressure oil structure is
Back pressure arc slot (11), and the radian number φ 1 of the back pressure arc slot (11) is more than or equal to 220 °；
Cylinder (20) is arranged between two structural members；
Shaft (30), the rotor portions (31) through two structural members and the cylinder (20), and the shaft (30) have
Multiple sliding vane grooves (311)；
Multiple slide plates (40) are slideably correspondingly arranged in multiple sliding vane grooves (311), the part or all of back pressure arc
Slot (11) is connected with the sliding vane groove (311), and lubricant medium can enter in the back pressure arc slot (11) to adjust the cunning
Pressure in the afterbody of film trap (311) ensures that the head of the slide plate (40) contacts always with the inner wall of the cylinder (20).
2. pump assembly according to claim 1, which is characterized in that the radian number φ 1 of the back pressure arc slot (11) meets
220°≤φ1≤340°。
3. pump assembly according to claim 2, which is characterized in that the radian number φ 1 of the back pressure arc slot (11) meets
260°≤φ1≤320°。
4. pump assembly according to claim 1, which is characterized in that the back pressure arc slot (11) it is end to end with formed
Annular groove.
5. pump assembly according to claim 4, which is characterized in that the annular groove includes the first interconnected arc slot
Section (111) and the second arc slot section (112), and the radian number φ 2 of the first arc slot section (111) and the second arc slot section
(112) the sum of radian number φ 3 is equal to the radian number φ 1 of the back pressure arc slot (11), the radian of the first arc slot section (111)
Number φ 2 meets 2≤340 ° of 220 °≤φ.
6. pump assembly according to claim 5, which is characterized in that the radian number φ 2 of the first arc slot section (111) is full
2≤320 ° of 260 °≤φ of foot.
7. pump assembly according to claim 5, which is characterized in that the width of the first arc slot section (111) is more than institute
State the width of the second arc slot section (112).
8. pump assembly according to claim 5, which is characterized in that the cross-sectional area A 1 of the first arc slot section (111)
With the ratio between the cross-sectional area A 2 of the second arc slot section (112) satisfaction
9. pump assembly according to claim 8, which is characterized in that the cross-sectional area A 1 of the first arc slot section (111)
With the ratio between the cross-sectional area A 2 of the second arc slot section (112) satisfaction
10. pump assembly according to claim 9, which is characterized in that the cross-sectional area A 1 of the first arc slot section (111)
With the ratio between the cross-sectional area A 2 of the second arc slot section (112) satisfaction
11. pump assembly according to claim 1, which is characterized in that the afterbody of the sliding vane groove (311) to the rotor
Beeline L >=5mm of the outer surface in portion (31).
12. pump assembly according to claim 1, which is characterized in that the shaft (30) has center connected in sequence
Oilhole (32) and radial direction oil hole (33), the radial direction oil hole (33) connect with the back pressure arc slot (11).
13. pump assembly according to any one of claim 1 to 12, which is characterized in that two structural member difference
For upper flange (12) and lower flange (13), the back pressure arc slot (11) is arranged on the direction cylinder of the upper flange (12)
(20) on lower face；And/or the back pressure arc slot (11) is arranged on the direction cylinder (20) of the lower flange (13)
On upper surface.
14. a kind of compressor, which is characterized in that including the pump assembly any one of claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093208.2A CN108087271A (en) | 2017-11-08 | 2017-11-08 | Pump assembly and with its compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711093208.2A CN108087271A (en) | 2017-11-08 | 2017-11-08 | Pump assembly and with its compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087271A true CN108087271A (en) | 2018-05-29 |
Family
ID=62170398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711093208.2A Pending CN108087271A (en) | 2017-11-08 | 2017-11-08 | Pump assembly and with its compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087271A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump, compressor and air conditioner |
| CN108843570A (en) * | 2018-08-17 | 2018-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner with it |
| CN109026695A (en) * | 2018-09-25 | 2018-12-18 | 珠海格力电器股份有限公司 | Pump assembly and rotary blade type compressor |
| CN110966194A (en) * | 2019-10-16 | 2020-04-07 | 珠海格力电器股份有限公司 | Compressor and sliding vane compressor backpressure control structure |
| CN111065824A (en) * | 2018-08-16 | 2020-04-24 | Lg电子株式会社 | Rotary compressor |
| CN111794964A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN111794963A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN112324660A (en) * | 2020-10-09 | 2021-02-05 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789726A (en) * | 2004-12-14 | 2006-06-21 | Lg电子株式会社 | Back pressure apparatus for orbiting vane compressors |
| CN205064266U (en) * | 2015-08-25 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Horizontal compressor and equipment of adjusting temperature |
| CN205154626U (en) * | 2015-11-13 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding -vane compressor |
| CN207420863U (en) * | 2017-11-08 | 2018-05-29 | 珠海格力电器股份有限公司 | Pump assembly and with its compressor |
-
2017
- 2017-11-08 CN CN201711093208.2A patent/CN108087271A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789726A (en) * | 2004-12-14 | 2006-06-21 | Lg电子株式会社 | Back pressure apparatus for orbiting vane compressors |
| CN205064266U (en) * | 2015-08-25 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Horizontal compressor and equipment of adjusting temperature |
| CN205154626U (en) * | 2015-11-13 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding -vane compressor |
| CN207420863U (en) * | 2017-11-08 | 2018-05-29 | 珠海格力电器股份有限公司 | Pump assembly and with its compressor |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454B (en) * | 2018-06-05 | 2023-10-03 | 珠海格力电器股份有限公司 | Compressor pump body, compressor and air conditioner |
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump, compressor and air conditioner |
| CN111065824B (en) * | 2018-08-16 | 2022-07-26 | Lg电子株式会社 | Rotary compressor |
| CN111065824A (en) * | 2018-08-16 | 2020-04-24 | Lg电子株式会社 | Rotary compressor |
| CN108843570A (en) * | 2018-08-17 | 2018-11-20 | 珠海格力电器股份有限公司 | Compressor and air conditioner with it |
| CN108843570B (en) * | 2018-08-17 | 2023-08-25 | 珠海格力电器股份有限公司 | Compressor and air conditioner with same |
| CN109026695A (en) * | 2018-09-25 | 2018-12-18 | 珠海格力电器股份有限公司 | Pump assembly and rotary blade type compressor |
| CN109026695B (en) * | 2018-09-25 | 2023-08-11 | 珠海格力电器股份有限公司 | Pump body assembly and rotary vane compressor |
| CN110966194A (en) * | 2019-10-16 | 2020-04-07 | 珠海格力电器股份有限公司 | Compressor and sliding vane compressor backpressure control structure |
| CN111794963A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN111794963B (en) * | 2020-06-29 | 2021-07-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN111794964A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN112324660B (en) * | 2020-10-09 | 2021-10-15 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN112324660A (en) * | 2020-10-09 | 2021-02-05 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
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