CN108799105A - Pump body assembly, fluid machine and heat exchange equipment - Google Patents
Pump body assembly, fluid machine and heat exchange equipment Download PDFInfo
- Publication number
- CN108799105A CN108799105A CN201810792304.4A CN201810792304A CN108799105A CN 108799105 A CN108799105 A CN 108799105A CN 201810792304 A CN201810792304 A CN 201810792304A CN 108799105 A CN108799105 A CN 108799105A
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- Prior art keywords
- piston bush
- pump assembly
- extension
- piston
- flange
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- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000008141 laxative Substances 0.000 claims description 2
- 230000002475 laxative effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000000354 decomposition reaction Methods 0.000 description 8
- 210000002421 cell wall Anatomy 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Classifications
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
-
- 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
-
- 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
- F04C2240/00—Components
- F04C2240/10—Stators
-
- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a pump body assembly, a fluid machine and heat exchange equipment. Wherein, pump body subassembly includes: an upper flange; an upper antifriction ring; the upper anti-friction ring is positioned in the cylinder, and the upper flange is positioned above the cylinder; the piston assembly is arranged in the cylinder and comprises a piston sleeve and a piston which is arranged in the piston sleeve in a sliding mode, the upper antifriction ring is provided with a center hole, the upper end face of the piston sleeve is provided with a first extending portion, and the first extending portion extends into the center hole of the upper antifriction ring and is in limit fit with the lower end face of the upper flange so as to prevent the piston sleeve from displacing in the radial direction relative to the upper flange. The invention effectively solves the problem that the piston sleeve of the pump body assembly is easy to eccentrically rotate and influences the working efficiency of the pump body assembly in the prior art.
Description
Technical field
The present invention relates to pump assembly technical fields, are set in particular to a kind of pump assembly, fluid machinery and heat exchange
It is standby.
Background technology
Currently, in pump assembly operational process, piston bush is easy to happen eccentric, tilt rotation, cause piston bush easily with
Cylinder and piston rub, and have severely impacted the working efficiency and working performance of pump assembly.
Invention content
The main purpose of the present invention is to provide a kind of pump assembly, fluid machinery and heat transmission equipments, to solve existing skill
The piston bush of art middle pump body component easily occurs eccentric rotary, influences the problem of pump assembly working efficiency.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of pump assembly, including：Upper flange；
Upper wearing ring；Cylinder, upper wearing ring are located in cylinder, and upper flange is located at the top of cylinder；Piston component is arranged in cylinder,
Piston component includes piston bush and the piston that is slidably arranged in piston bush, and upper wearing ring has centre bore, the upper end of piston bush
Face has the first extension, and the first extension, which is stretched into the centre bore of wearing ring and limited between the lower face of upper flange, matches
It closes, to prevent piston bush relative to the displacement of upper flange generation radial direction.
Further, the surface towards piston bush of upper flange has a recess portion, the first extension stretch in recess portion and with
In the radial direction limit stops of the recess portion in piston bush.
Further, the lower face of upper flange has the limiting section extended towards piston bush, the first extension and limiting section
Limit stops, to prevent piston bush relative to the displacement of upper flange generation radial direction.
Further, pump assembly further includes the structural member being located at below cylinder, and the upper surface of structural member has extension
And limit cooperation is carried out by extension and piston bush, to prevent piston bush relative to the displacement of structural member generation radial direction.
Further, structural member is lower flange.
Further, structural member includes lower flange and lower limiting board, and lower limiting board extends between cylinder and lower flange
The upper surface in lower limiting board or lower flange is arranged in portion.
Further, extension stretch into piston bush and with the inner surface limit stops of piston bush.
Further, the lower face of piston bush has the 6th limiting groove, extension stretch into the 6th limiting groove and with
6th limiting groove limit stops.
Further, pump assembly further includes the lower flange being located at below piston component and the lower anti-attrition being arranged in cylinder
Ring limits cooperation between the lower face of piston bush and lower wearing ring, to prevent piston bush from radial direction occurs relative to lower flange
Displacement.
Further, there is limit protrusion, limit protrusion to stretch into lower wearing ring on the surface of the lower wearing ring of the direction of piston bush
Centre bore in, and with the inner surface of the centre bore of lower wearing ring limit coordinate.
Further, the surface of the lower wearing ring of the direction of piston bush has a limit protrusion, lower wearing ring towards piston bush
Surface there is the 7th limiting groove, limit protrusion stretch into the 7th limiting groove and with the 7th limiting groove limit stops.
Further, there is the 5th extension, the 5th extension to stretch into piston on the surface towards piston bush of lower wearing ring
Set in and with the inner surface limit stops of piston bush.
Further, the surface towards piston bush of lower wearing ring has the 5th extension, and the lower face of piston bush has
6th limiting groove, the 5th extension stretch into the 6th limiting groove and with the 6th limiting groove limit stops.
Further, pump assembly further includes：Lower flange is located at the lower section of piston component；Shaft, shaft are threaded through successively
Upper flange, piston bush and lower flange, and shaft is coaxially disposed with upper flange and lower flange.
According to another aspect of the present invention, a kind of fluid machinery, including above-mentioned pump assembly are provided.
According to another aspect of the present invention, a kind of heat transmission equipment, including above-mentioned fluid machinery are provided.
It applies the technical scheme of the present invention, pump assembly includes upper flange, upper wearing ring, cylinder and piston component.Wherein,
Upper wearing ring is located in cylinder, and upper flange is located at the top of cylinder.Piston component is arranged in cylinder, and piston component includes piston
There is centre bore, the upper surface of piston bush to have the first extension for the piston for covering and being slidably arranged in piston bush, upper wearing ring,
First extension stretches into the centre bore of wearing ring and limits cooperation between the lower face of upper flange, to prevent piston bush phase
Upper flange occurs the displacement of radial direction.In this way, in pump assembly operational process, the first extension of piston bush stretches into
Cooperation is limited in the centre bore of upper wearing ring and between the lower face of upper flange, realizes limit of the upper flange to piston set upper side
Position, support, and then prevent piston bush from movement in the radial direction occurring in the process of running, ensure that piston bush can normally turn
It is dynamic, solve the problems, such as that the piston bush of pump assembly in the prior art easily occurs eccentric rotary, influences pump assembly working efficiency,
Improve the operational reliability and working performance of pump assembly.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted 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 views of the pump assembly in Fig. 1；
Fig. 3 shows the upward view of the upper flange of the pump assembly in Fig. 1；
Fig. 4 shows the sectional view of the piston bush of the pump assembly in Fig. 1；
Fig. 5 shows the decomposition texture schematic diagram of the embodiment two of pump assembly according to the present invention；
Fig. 6 shows the sectional view of the pump assembly in Fig. 5；
Fig. 7 shows the upward view of the upper flange of the pump assembly in Fig. 5；
Fig. 8 shows the sectional view of the piston bush of the pump assembly in Fig. 5；
Fig. 9 shows the decomposition texture schematic diagram of the embodiment three of pump assembly according to the present invention；
Figure 10 shows the sectional view of the pump assembly in Fig. 9；
Figure 11 shows the dimensional structure diagram of the upper flange of the pump assembly in Fig. 9；
Figure 12 shows the vertical view of the lower flange of the pump assembly in Fig. 9；
Figure 13 shows the sectional view of the piston bush of the pump assembly in Fig. 9；
Figure 14 shows the decomposition texture schematic diagram of the example IV of pump assembly according to the present invention；
Figure 15 shows the sectional view of the pump assembly in Figure 14；
Figure 16 shows the dimensional structure diagram of the upper flange of the pump assembly in Figure 14；
Figure 17 shows the sectional views of the lower limiting board of the pump assembly in Figure 14；
Figure 18 shows the sectional view of the piston bush of the pump assembly in Figure 14；
Figure 19 shows the decomposition texture schematic diagram of the embodiment five of pump assembly according to the present invention；
Figure 20 shows the sectional view of the pump assembly in Figure 19；
Figure 21 shows the dimensional structure diagram of the upper flange of the pump assembly in Figure 19；
Figure 22 shows the vertical view of the lower flange of the pump assembly in Figure 19；
Figure 23 shows the decomposition texture schematic diagram of the embodiment six of pump assembly according to the present invention；
Figure 24 shows the sectional view of the pump assembly in Figure 23；
Figure 25 shows the dimensional structure diagram of the upper flange of the pump assembly in Figure 23；
Figure 26 shows the sectional view of the lower wearing ring of the pump assembly in Figure 23；
Figure 27 shows the sectional view of the piston bush of the pump assembly in Figure 23；
Figure 28 shows the decomposition texture schematic diagram of the embodiment seven of pump assembly according to the present invention；
Figure 29 shows the sectional view of the pump assembly in Figure 28；
Figure 30 shows the dimensional structure diagram of the upper flange of the pump assembly in Figure 28；
Figure 31 shows the sectional view of the lower wearing ring of the pump assembly in Figure 28；
Figure 32 shows the sectional view of the piston bush of the pump assembly in Figure 28；
Figure 33 shows the decomposition texture schematic diagram of the embodiment eight of pump assembly according to the present invention；
Figure 34 shows the sectional view of the pump assembly in Figure 33；
Figure 35 shows the sectional view of the piston bush of the pump assembly in Figure 33；And
Figure 36 shows the sectional view of the lower wearing ring of the pump assembly in Figure 33.
Wherein, above-mentioned attached drawing includes the following drawings label：
11, upper flange；111, recess portion；112, limiting section；12, lower flange；13, lower limiting board；20, cylinder；30, shaft；
40, piston bush；41, the first extension；43, limit protrusion；44, step surface；45, the 6th limiting groove；50, piston；60, subtract under
Bull ring；61, the 7th limiting groove；62, the 5th extension；70, upper wearing ring；80, extension.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be 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 absence of explanation to the contrary, the noun of locality used is typically directed to attached drawing as " upper and lower "
Shown in for direction, or on vertical, vertical or gravity direction；Similarly, it for ease of understanding and retouches
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 relative to each component itself,
But the above-mentioned noun of locality is not intended to restrict the invention.
Piston bush in order to solve pump assembly in the prior art easily occurs eccentric rotary, influences pump assembly working efficiency
The problem of, this application provides a kind of pump assembly, fluid machinery and heat transmission equipments.
Embodiment one
As shown in Figures 1 to 4, pump assembly includes upper flange 11, upper wearing ring 70, cylinder 20 and piston component.Wherein,
Upper wearing ring 70 is located in cylinder 20, and upper flange 11 is located at the top of cylinder 20.Piston component is arranged in cylinder 20, piston group
Part includes piston bush 40 and the piston being slidably arranged in piston bush 40 50, and upper wearing ring 70 has centre bore, piston bush 40
Upper surface has the first extension 41, the first extension 41 stretch into the centre bore of wearing ring 70 and with the lower end of upper flange 11
Cooperation is limited between face, to prevent piston bush 40 relative to the displacement of the generation radial direction of upper flange 11.
Using the technical solution of the present embodiment, in pump assembly operational process, the first extension 41 of piston bush 40 is stretched
Enter in the centre bore of upper wearing ring 70 and limit cooperation between the lower face of upper flange 11, realizes upper flange 11 to piston bush
The limits of 40 upper ends, support, and then prevent piston bush 40 from movement in the radial direction occurring in the process of running, ensure piston bush
40 can normal rotation, solve pump assembly in the prior art piston bush easily occur eccentric rotary, influence pump assembly work
The problem of making efficiency improves the operational reliability and working performance of pump assembly.
As shown in Figure 1 to Figure 3, there is recess portion 111, the first extension 41 to stretch on the surface towards piston bush 40 of upper flange 11
Enter in recess portion 111 and with recess portion 111 piston bush 40 limit stops in the radial direction.Specifically, the first extension 41 is worn
It is stretched in recess portion 111 after crossing the centre bore of wearing ring 70, the outer surface of the first extension 41 is limited with the inner surface of recess portion 111
Position cooperation, then realize upper flange 11 to the limit stops of the radial direction of 40 upper end of piston bush, avoid piston bush 40 and piston
50 or the interference of 20 recurring structure of cylinder and influence the normal operation of pump assembly.The structure of above structure is simple, is easily worked, is real
It is existing.
In the present embodiment, the first extension 41 and recess portion 111 in a ring, and the first extension 41, recess portion 111 and piston
40 coaxial arrangement of set.In this way, above-mentioned setting ensures that piston bush 40 can be rotated relative to upper flange 11, and then ensure the pump housing
The operational reliability of component.Piston bush 40 and 11 eccentric setting of upper flange, and the eccentric amount e that eccentricity is pump assembly.In this way,
Above-mentioned setting enables the first extension 41 of piston bush 40 in the interior central shaft around piston bush 40 of recess portion 111 of upper flange 11
Line (or central axis of recess portion 111) rotates, and ensures upper flange 11 to the limit of piston bush 40, support reliability.
It should be noted that the structure of the first extension 41 is without being limited thereto.Optionally, the first extension 41 is double-layer circular
Structure, at least one layer of cyclic structure and the inside cell wall or outside cell wall of recess portion 111 carry out limit stops.In this way, above-mentioned setting
So that the structure more diversity of the first extension 41 drops so that the processing of piston bush 40, manufacture are more prone to, simply
The labor intensity of low staff.
In the present embodiment, recess portion 111 is groove.The structure of above structure is simple, is easily worked, realizes.
In the present embodiment, the groove width of groove is more than the thickness of the first extension 41.In this way, above-mentioned setting ensures that first prolongs
Extending portion 41 is located in groove, and then ensures that groove can carry out limit stops to the first extension 41, promotes upper flange 11 to work
The limit reliability of plug sleeve 40, promotes the operational reliability of pump assembly.
In the present embodiment, the surface of the inside cell wall of groove and the first extension 41 close to the center side of piston bush 40
Between have the first preset distance, and the first preset distance be more than or equal to 5um and be less than or equal to 40um.Specifically, groove is interior
The first extension of side channel wall pair 41 carries out limit stops close to the surface of the center side of piston bush 40, prevents from occurring therebetween
Radial displacement.Meanwhile in order to ensure piston bush 40 can normal rotation, it is close in the inside cell wall of groove and the first extension 41
There is the first preset distance between the surface of the center side of piston bush 40, both ensured that groove can carry out the first extension 41
Radial limit, also enables the first extension 41 to be rotated relative to groove, and then promotes the operational reliability of pump assembly.
In the present embodiment, recess portion 111 and 11 eccentric setting of upper flange, and eccentricity is e.In this way, through the above way
Determining the eccentricity of pump assembly so that the eccentricity of pump assembly is more prone to ensure, the determination of eccentric amount e is relatively reliable,
Simply.
As depicted in figs. 1 and 2, pump assembly further includes the lower flange 12 for being located at 20 lower section of cylinder.Specifically, lower flange 12
Upper surface there is eccentric boss, eccentric boss can carry out limit stops to the lower end of piston bush 40, to prevent piston bush 40
Lower end the displacement of radial direction occurs relative to lower flange 12, meanwhile, the upper end of piston bush 40 by 11 limited support of upper flange,
So that the upper/lower terminal of piston bush 40 is limited support, piston bush 40 and 20 recurring structure of piston 50 or cylinder are avoided
Interfere and influence the normal operation of pump assembly, promotes the operational reliability and working performance of pump assembly.
As shown in Figure 2 and Figure 4, eccentric boss stretch into piston bush 40 and with the inner surface limit stops of piston bush 40.Tool
Body, has a step surface 44 on the inner surface of piston bush 40, and step surface 44 is located at piston bush 40 towards the end of lower flange 12,
Eccentric boss stretches in step surface 44 to 44 limit stops of step surface, to realize lower flange 12 to 40 radial direction of piston bush
Limit.
Optionally, eccentric boss eccentric setting on lower flange 12, and eccentricity is e.In this way, determining through the above way
The eccentricity of pump assembly so that the eccentricity of pump assembly is more prone to ensure, the determination of eccentric amount e is relatively reliable, simple.
As depicted in figs. 1 and 2, pump assembly further includes shaft 30.Wherein, shaft 30 is threaded through upper flange 11, lives successively
Plug sleeve 40 and lower flange 12, and shaft 30 is coaxially disposed with upper flange 11 and lower flange 12.Specifically, it was run in pump assembly
Cheng Zhong, shaft 30 are rotated around the central axis of upper flange 11, and piston bush 40 is rotated around the central axis of recess portion 111,50 phase of piston
Piston bush 40 is only moved back and forth, piston 50 is moved back and forth relative to shaft 30, and two reciprocating motions are mutually perpendicular to, i.e. the pump housing
The operation of component follows cross slides principle.With the reciprocating motion between piston 50 and piston bush 40, the head of piston 50
Portion's cambered surface, the inner surface of cylinder 20, piston bush 40 pilot hole between two cavity volumes being formed gradually change, complete to inhale
Gas, compression, exhaust process.
Present invention also provides a kind of fluid machinery (not shown), including above-mentioned pump assembly.Optionally, fluid machinery
For compressor.
Present invention also provides a kind of heat transmission equipment (not shown), including above-mentioned fluid machinery.Optionally, heat transmission equipment
For air conditioner.
Embodiment two
Pump assembly in embodiment two and embodiment one difference lies in：The structure of upper flange 11 and lower flange 12 is not
Together.
As shown in Fig. 5 to Fig. 8, the lower face of upper flange 11 has the limiting section 112 extended towards piston bush 40, and first prolongs
Extending portion 41 and 112 limit stops of limiting section, to prevent piston bush 40 relative to the displacement of the generation radial direction of upper flange 11.Specifically
The side of ground, the side of limiting section 112 and the first extension 41 can carry out limit cooperation, prevent that radial position occurs therebetween
It moves, and then prevents piston bush 40 from the displacement of radial direction occurring relative to upper flange 11, ensure the stable operation of piston bush 40, carry
Rise the operational reliability and working efficiency of pump assembly.
As shown in fig. 6, limiting section 112 is located at the inside of the first extension 41.Specifically, the lateral surface pair of limiting section 112
First extension 41 carries out limit stops close to the surface of the center side of piston bush 40, prevents that radial move occurs therebetween
Position.
Optionally, the lateral surface of limiting section 112 and the first extension 41 close to the surface of the center side of piston bush 40 it
Between have the second preset distance, and the second preset distance be more than or equal to 5um and be less than or equal to 40um.In this way, above-mentioned numberical range
Both ensured that limiting section 112 can carry out radial limit to the first extension 41, and also enable the first extension 41 relative to limit
Position portion 112 rotates, and then promotes the operational reliability of pump assembly.
In the other embodiment being not shown in the accompanying drawings, limiting section is located at the outside of the first extension.Specifically, first
The medial surface of extension carries out limit stops to the surface of center side of the limiting section far from piston bush, prevents from occurring therebetween
Radial displacement.
In the present embodiment, lower flange 12 towards the end face of piston bush 40 be plane.
Embodiment three
Pump assembly in embodiment three and embodiment two difference lies in：The structure of structural member and piston bush 40 is different.
As shown in Fig. 9 to Figure 13, pump assembly further includes the structural member for being located at 20 lower section of cylinder, the upper end mask of structural member
There is extension 80 and limit cooperation is carried out by extension 80 and piston bush 40, to prevent piston bush 40 from occurring relative to structural member
The displacement of radial direction.Wherein, structural member includes lower flange 12 and lower limiting board 13, and lower limiting board 13 is located at cylinder 20 and laxative remedy
Between orchid 12, extension 80 is arranged in the upper surface of lower flange 12.Specifically, the extension 80 on lower flange 12 is to piston bush 40
Lower end carry out limit stops, to prevent the lower end of piston bush 40 from the displacement of radial direction occurs relative to lower flange 12.Meanwhile
The upper end of piston bush 40 is avoided by 11 limited support of upper flange so that the upper/lower terminal of piston bush 40 is limited support
Piston bush 40 interferes and influences the normal operation of pump assembly with piston 50 or 20 recurring structure of cylinder, promotes the fortune of pump assembly
Row reliability and working performance.
As shown in Figure 10, piston bush 40 has limit protrusion 43, limit protrusion 43 and extension towards the surface of lower flange 12
80 limit stops of portion.Specifically, limit protrusion 43 is located at the outside of the extension 80, and the outer surface of extension 80 can be with limit
The inner surface contact of position protrusion 43, extension 80 can carry out limit protrusion 43 limit stops of radial direction, prevent piston
The displacement of radial direction occurs relative to lower flange 12 for the lower end of set 40.
In the other embodiment being not shown in the accompanying drawings, extension is arranged in the upper surface of lower limiting board.Specifically, under
Extension on limiting plate carries out limit stops to the lower end of piston bush, with prevent the lower end of piston bush relative to lower flange (under
Limiting plate) occur radial direction displacement.Meanwhile the upper end of piston bush is by upper flange limited support, so that piston bush
Upper/lower terminal is limited support, avoids piston bush from interfering with piston or cylinder recurring structure and influences the normal of pump assembly
Operation, promotes the operational reliability and working performance of pump assembly.
Example IV
Pump assembly in example IV and embodiment three difference lies in：The structure of upper flange 11 and piston bush 40 is not
Together, the installation position of extension 80 is different.
As shown in Figure 14 to Figure 18, the lower face of piston bush 40 has the 6th limiting groove 45, prolonging on lower limiting board 13
Extending portion 80 stretch into the 6th limiting groove 45 and with 45 limit stops of the 6th limiting groove.In this way, the extension of lower limiting board 13
80 stretch in the 6th limiting groove 45 of piston bush 40, and the outer surface of extension 80 and the cell wall of the 6th limiting groove 45 limit
Cooperation, to realize lower limiting board 13 to the limit of 40 lower end of piston bush, support, prevent piston bush 40 relative to lower flange 12 (under
Limiting plate 13) occur radial direction displacement.
Optionally, the 6th limiting groove 45 and extension 80 are cyclic structure, and the two is coaxially disposed.The knot of above structure
Structure is simple, easy to implement.
As shown in Figure 14 and Figure 15, upper flange 11 towards the surface of piston bush 40 there is recess portion 111, the first extension 41 to wear
It is stretched in recess portion 111 after crossing the centre bore of wearing ring 70, and the radial direction upper limit with recess portion 111 in piston bush 40 stops
Gear.In this way, above-mentioned setting realizes upper flange 11 to the limit stops of the radial direction of 40 upper end of piston bush, piston bush 40 is avoided
Interfere and influence the normal operation of pump assembly with piston 50 or 20 recurring structure of cylinder.The structure of above structure is simple, is easy
Processing is realized.
It should be noted that the structure of upper flange 11 is without being limited thereto.Optionally, the lower face of upper flange 11 has towards living
The limiting section 112 that plug sleeve 40 extends, 41 limit stops of limiting section 112 and the first extension, to realize upper flange 11 to piston bush
The limit stops of 40 upper end prevent the upper end of piston bush 40 from the displacement of radial direction occurring relative to upper flange 11.
Embodiment five
Pump assembly in embodiment five and embodiment two difference lies in：The structure of pump assembly is different.
As shown in Figure 19 to Figure 22, pump assembly further includes the lower flange 12 being located at below piston component and is arranged in cylinder
Lower wearing ring 60 in 20 limits cooperation between the lower face of piston bush 40 and lower wearing ring 60, to prevent piston bush 40 opposite
The displacement of radial direction occurs in lower flange 12.Specifically, in pump assembly operational process, lower wearing ring 60 is to piston bush 40
Lower end limit stops, prevent the lower end of piston bush 40 from the displacement of radial direction occurring relative to lower flange 12.Meanwhile piston bush
40 upper end avoids piston bush by 11 limited support of upper flange so that the upper/lower terminal of piston bush 40 is limited support
40 interfere and influence the normal operation of pump assembly with piston 50 or 20 recurring structure of cylinder, promote the reliable for operation of pump assembly
Property and working performance.
As shown in figure 20, there is limit protrusion 43, limit protrusion 43 to stretch on the surface of the lower wearing ring of the direction of piston bush 40 60
In the centre bore for entering lower wearing ring 60, and limits and coordinate with the inner surface of the centre bore of lower wearing ring 60.In this way, limit protrusion 43
Outer surface and lower wearing ring 60 centre bore hole wall limit stops, to realize that lower wearing ring 60 stops the limit of limit protrusion 43
Gear.The structure of above structure is simple, easy to implement.
Embodiment six
Pump assembly in embodiment six and embodiment five difference lies in：The structure of lower wearing ring 60 is different.
As shown in Figure 23 to Figure 27, the surface of the lower wearing ring of the direction of piston bush 40 60 has limit protrusion 43, lower anti-attrition
The surface towards piston bush 40 of ring 60 has the 7th limiting groove 61, limit protrusion 43 stretch into the 7th limiting groove 61 and with
7th limiting groove, 61 limit stops.Specifically, in pump assembly operational process, the limit protrusion 43 of piston bush 40 stretches into down
In 7th limiting groove 61 of wearing ring 60, and the cell wall of the 7th limiting groove 61 and the outer surface limit of limit protrusion 43 stop
Gear prevents the lower end of piston bush 40 relative to lower flange 12 to realize that lower wearing ring 60 and the limit of 40 lower end of piston bush coordinate
The displacement of radial direction occurs.
Optionally, limit protrusion 43 and the 7th limiting groove 61 in a ring, and limit protrusion 43, the 7th limiting groove 61 and
Piston bush 40 is coaxially disposed.Wherein, the centre bore of the 7th limiting groove 61 and lower wearing ring 60 is coaxially disposed.The knot of above structure
Structure is simple, easy to implement, processing.
Embodiment seven
Pump assembly in embodiment seven and embodiment five difference lies in：The structure of lower wearing ring 60 and piston bush 40 is not
Together.
As shown in Figure 28 to Figure 32, pump assembly further includes the lower limiting board between lower flange 12 and lower wearing ring 60
13, there is the 5th extension 62, the 5th extension 62 to stretch into piston bush 40 on the surface towards piston bush 40 of lower wearing ring 60
And with the inner surface limit stops of piston bush 40.Specifically, the 5th extension 62 of lower wearing ring 60 stretches into piston bush 40, and
Limit stops are carried out to the lower end of piston bush 40, to realize lower limit of the wearing ring 60 to 40 radial direction of piston bush.
Optionally, in a ring, and the centre bore of the 5th extension 62 and lower wearing ring 60 is coaxially disposed the 5th extension 62.
It should be noted that the structure of the 5th extension 62 is without being limited thereto.Optionally, the 5th extension 62 is double-layer circular
Structure, outermost layer cyclic structure and the inner surface of piston bush 40 carry out limit stops.In this way, above-mentioned setting makes the 5th extension
62 structure more diversity reduces staff's so that the processing of lower wearing ring 60, manufacture are more prone to, simply
Labor intensity.
It should be noted that the structure of pump assembly is without being limited thereto.In the other embodiment being not shown in the accompanying drawings, pump
Body component does not include lower limiting board, and lower flange is contacted with the lower face of wearing ring and cylinder.
Embodiment eight
Pump assembly in embodiment eight and embodiment five difference lies in：The structure of lower wearing ring 60 and piston bush 40 is not
Together.
As shown in Figure 33 to Figure 36, pump assembly further includes the lower limiting board between lower flange 12 and lower wearing ring 60
13, there is the 5th extension 62, the lower face of piston bush 40 to have the 6th limit on the surface towards piston bush 40 of lower wearing ring 60
Position groove 45, the 5th extension 62 stretch into the 6th limiting groove 45 and with 45 limit stops of the 6th limiting groove.In this way, the 5th
Extension 62 stretches into the 6th limiting groove 45, so that the structure of pump assembly is compacter.Meanwhile the knot of above structure
Structure is simple, easy to implement.
Specifically, in pump assembly operational process, the 5th extension 62 of lower wearing ring 60 stretches into the of piston bush 40
In six limiting grooves 45, to realize limit, support of the lower wearing ring 60 to 40 lower end of piston bush.Meanwhile the upper end of piston bush 40
By 70 limit stops of upper wearing ring, and then ensure that the upper and lower end of piston bush 40 is limited support, avoids piston bush 40 and piston
50 or the interference of 20 recurring structure of cylinder and influence the normal operation of pump assembly, promote the operational reliability of pump assembly.
It should be noted that the structure of pump assembly is without being limited thereto.In the other embodiment being not shown in the accompanying drawings, pump
Body component does not include lower limiting board, and lower flange is contacted with the lower face of wearing ring and cylinder.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
In pump assembly operational process, the first extension of piston bush stretch into the centre bore of wearing ring and with upper method
Cooperation is limited between blue lower face, realizes limit, support of the upper flange to piston set upper side, and then prevent piston bush from transporting
Movement in the radial direction occurs during row, ensure piston bush can normal rotation, solve pump assembly in the prior art
Piston bush easily occur eccentric rotary, influence pump assembly working efficiency the problem of, improve the operational reliability of pump assembly
And working performance.
Obviously, above-mentioned described embodiment only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts 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 implementation mode, 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 " packet
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 for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of pump assembly, which is characterized in that including：
Upper flange (11)；
Upper wearing ring (70)；
Cylinder (20), the upper wearing ring (70) are located in the cylinder (20), and the upper flange (11) is located at the cylinder
(20) top；
Piston component, in the cylinder (20), the piston component includes piston bush (40) and is slidably arranged in described for setting
Piston (50) in piston bush (40), the upper wearing ring (70) have centre bore, and the upper surface of the piston bush (40) has
First extension (41), first extension (41) stretch into the centre bore of the upper wearing ring (70) and with the upper flange
(11) cooperation is limited between lower face, to prevent the piston bush (40) from radial direction occurs relative to the upper flange (11)
Displacement.
2. pump assembly according to claim 1, which is characterized in that the direction piston bush of the upper flange (11)
(40) surface has a recess portion (111), first extension (41) stretch in the recess portion (111) and with the recess portion
(111) in the limit stops in the radial direction of the piston bush (40).
3. pump assembly according to claim 1, which is characterized in that the lower face of the upper flange (11) has towards institute
The limiting section (112) of piston bush (40) extension, first extension (41) and the limiting section (112) limit stops are stated, with
Prevent the piston bush (40) from the displacement of radial direction occurring relative to the upper flange (11).
4. pump assembly according to any one of claim 1 to 3, which is characterized in that the pump assembly further includes position
The upper surface of structural member below the cylinder (20), the structural member has extension (80) and passes through the extension
(80) limit cooperation is carried out with the piston bush (40), to prevent the piston bush (40) from radial direction occurs relative to the structural member
The displacement in direction.
5. pump assembly according to claim 4, which is characterized in that the structural member is lower flange (12).
6. pump assembly according to claim 4, which is characterized in that the structural member includes lower flange (12) and lower limit
Plate (13), between the cylinder (20) and the lower flange (12), the extension (80) sets the lower limiting board (13)
Set the upper surface in the lower limiting board (13) or the lower flange (12).
7. pump assembly according to claim 5 or 6, which is characterized in that the extension (80) stretches into the piston bush
(40) in and with the inner surface limit stops of the piston bush (40).
8. pump assembly according to claim 4, which is characterized in that the lower face of the piston bush (40) has the 6th limit
Position groove (45), the extension (80) are stretched into the 6th limiting groove (45) and are limited with the 6th limiting groove (45)
Position backstop.
9. pump assembly according to any one of claim 1 to 3, which is characterized in that the pump assembly further includes position
The lower wearing ring (60) of lower flange (12) and setting in the cylinder (20) below the piston component, the piston bush
(40) it limits and coordinates between lower face and the lower wearing ring (60), to prevent the piston bush (40) relative to the laxative remedy
The displacement of radial direction occurs for blue (12).
10. pump assembly according to claim 9, which is characterized in that the direction lower anti-attrition of the piston bush (40)
There is limit protrusion (43), the limit protrusion (43) to stretch into the centre bore of the lower wearing ring (60) on the surface of ring (60),
And it limits and coordinates with the inner surface of the centre bore of the lower wearing ring (60).
11. pump assembly according to claim 9, which is characterized in that the direction lower anti-attrition of the piston bush (40)
The surface of ring (60) has a limit protrusion (43), and the surface of the direction piston bush (40) of the lower wearing ring (60) has the
Seven limiting grooves (61), the limit protrusion (43) stretch into the 7th limiting groove (61) and with the 7th limiting groove
(61) limit stops.
12. pump assembly according to claim 9, which is characterized in that the direction piston of the lower wearing ring (60)
The surface for covering (40) has the 5th extension (62), the 5th extension (62) stretch into the piston bush (40) and with it is described
The inner surface limit stops of piston bush (40).
13. pump assembly according to claim 9, which is characterized in that the direction piston of the lower wearing ring (60)
There is the 5th extension (62), the lower face of the piston bush (40) to have the 6th limiting groove (45), institute on the surface for covering (40)
State the 5th extension (62) stretch into the 6th limiting groove (45) and with the 6th limiting groove (45) limit stops.
14. pump assembly according to claim 1, which is characterized in that the pump assembly further includes：
Lower flange (12) is located at the lower section of the piston component；
Shaft (30), the shaft (30) are threaded through the upper flange (11), the piston bush (40) and the lower flange successively
(12), and the shaft (30) is coaxially disposed with the upper flange (11) and the lower flange (12).
15. a kind of fluid machinery, which is characterized in that including the pump assembly described in any one of claim 1 to 14.
16. a kind of heat transmission equipment, which is characterized in that including the fluid machinery described in claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792304.4A CN108799105B (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machinery and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792304.4A CN108799105B (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machinery and heat exchange equipment |
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| CN108799105A true CN108799105A (en) | 2018-11-13 |
| CN108799105B CN108799105B (en) | 2023-10-03 |
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| WO2020015291A1 (en) * | 2018-07-18 | 2020-01-23 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine, and heat exchange device |
| WO2020015290A1 (en) * | 2018-07-18 | 2020-01-23 | 珠海格力电器股份有限公司 | Pump assembly, fluid machine, and heat exchange device |
| US20210372408A1 (en) * | 2018-07-18 | 2021-12-02 | Gree Electric Appliances, Inc. Of Zhuhai | Pump body assembly, fluid machinery, and heat exchange device |
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