CN208578716U - Pump body assembly, fluid machine and heat exchange equipment - Google Patents
Pump body assembly, fluid machine and heat exchange equipment Download PDFInfo
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- CN208578716U CN208578716U CN201821144926.8U CN201821144926U CN208578716U CN 208578716 U CN208578716 U CN 208578716U CN 201821144926 U CN201821144926 U CN 201821144926U CN 208578716 U CN208578716 U CN 208578716U
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- pump assembly
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- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 239000011324 bead Substances 0.000 claims description 23
- 230000014759 maintenance of location Effects 0.000 claims description 23
- 239000008141 laxative Substances 0.000 claims description 2
- 230000002475 laxative effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 238000000354 decomposition reaction Methods 0.000 description 8
- 238000010586 diagram 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
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Abstract
The utility model provides a pump body subassembly, fluid machinery and indirect heating 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 utility model discloses the piston sleeve of pump body subassembly has easily taken place eccentric rotation among the prior art, has influenced pump body subassembly work efficiency's problem effectively.
Description
Technical field
The utility model relates to pump assembly technical fields, in particular to a kind of pump assembly, fluid machinery and change
Hot equipment.
Background technique
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.
Utility model content
The main purpose of the utility model is to provide a kind of pump assembly, fluid machinery and heat exchange equipments, existing to solve
There is the piston bush of technology middle pump body component that eccentric rotary easily occurs, influences the problem of pump assembly working efficiency.
To achieve the goals above, one aspect according to the present utility model provides a kind of pump assembly, comprising: on
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 gas
In cylinder, piston component includes piston bush and the piston that is slidably arranged in piston bush, and upper wearing ring has centre bore, piston bush
Upper surface has the first extension, and the first extension is protruded into the centre bore of wearing ring and limited between the lower end surface of upper flange
Position cooperation, 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 end surface 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 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 of lower limiting board or lower flange is arranged in portion.
Further, extension protrudes into piston bush and the inner surface limit stops with piston bush.
Further, the lower end surface of piston bush has the 6th limiting groove, extension protrude 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 end surface of piston bush and lower wearing ring, to prevent piston bush from radial direction occurs relative to lower flange
Displacement.
Further, the surface towards lower wearing ring of piston bush has retention bead, and retention bead protrudes into lower wearing ring
Centre bore in, and with the inner surface of the centre bore of lower wearing ring limit cooperate.
Further, the surface towards lower wearing ring of piston bush has a retention bead, lower wearing ring towards piston bush
Surface there is the 7th limiting groove, retention bead protrude into the 7th limiting groove and with the 7th limiting groove limit stops.
Further, the surface towards piston bush of lower wearing ring has the 5th extension, and the 5th extension protrudes into piston
Cover the interior and inner surface limit stops with piston bush.
Further, the surface towards piston bush of lower wearing ring has the 5th extension, and the lower end surface of piston bush has
6th limiting groove, the 5th extension protrude into the 6th limiting groove and with the 6th limiting groove limit stops.
Further, pump assembly further include: lower flange, positioned at the lower section of piston component；Shaft, shaft are successively threaded through
Upper flange, piston bush and lower flange, and shaft and upper flange and lower flange are coaxially disposed.
Another aspect according to the present utility model provides a kind of fluid machinery, including above-mentioned pump assembly.
Another aspect according to the present utility model provides a kind of heat exchange equipment, including above-mentioned fluid machinery.
Using the technical solution of the utility model, 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, piston component packet
The piston for including piston bush and being slidably arranged in piston bush, upper wearing ring have centre bore, and the upper surface of piston bush has first
Extension, the first extension protrudes into the centre bore of wearing ring and limits cooperation between the lower end surface of upper flange, to prevent
The displacement of radial direction occurs relative to upper flange for piston bush.In this way, the first of piston bush prolongs in pump assembly operational process
Extending portion protrudes into the centre bore of wearing ring and limits cooperation between the lower end surface of upper flange, realizes upper flange to piston bush
The limit of upper end, support, and then prevent piston bush from movement in the radial direction occurring in the process of running, guarantee that piston bush can
Normal rotation, the piston bush for solving pump assembly in the prior art easily occur eccentric rotary, influence pump assembly working efficiency
The problem of, improve the operational reliability and working performance of pump assembly.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows the decomposition texture schematic diagram of the embodiment one of pump assembly according to the present utility model；
Fig. 2 shows the cross-sectional views of the pump assembly in Fig. 1；
Fig. 3 shows the bottom view of the upper flange of the pump assembly in Fig. 1；
Fig. 4 shows the cross-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 utility model；
Fig. 6 shows the cross-sectional view of the pump assembly in Fig. 5；
Fig. 7 shows the bottom view of the upper flange of the pump assembly in Fig. 5；
Fig. 8 shows the cross-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 utility model；
Figure 10 shows the cross-sectional view of the pump assembly in Fig. 9；
Figure 11 shows the schematic perspective view of the upper flange of the pump assembly in Fig. 9；
Figure 12 shows the top view of the lower flange of the pump assembly in Fig. 9；
Figure 13 shows the cross-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 utility model；
Figure 15 shows the cross-sectional view of the pump assembly in Figure 14；
Figure 16 shows the schematic perspective view of the upper flange of the pump assembly in Figure 14；
Figure 17 shows the cross-sectional views of the lower limiting board of the pump assembly in Figure 14；
Figure 18 shows the cross-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 utility model；
Figure 20 shows the cross-sectional view of the pump assembly in Figure 19；
Figure 21 shows the schematic perspective view of the upper flange of the pump assembly in Figure 19；
Figure 22 shows the top 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 utility model；
Figure 24 shows the cross-sectional view of the pump assembly in Figure 23；
Figure 25 shows the schematic perspective view of the upper flange of the pump assembly in Figure 23；
Figure 26 shows the cross-sectional view of the lower wearing ring of the pump assembly in Figure 23；
Figure 27 shows the cross-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 utility model；
Figure 29 shows the cross-sectional view of the pump assembly in Figure 28；
Figure 30 shows the schematic perspective view of the upper flange of the pump assembly in Figure 28；
Figure 31 shows the cross-sectional view of the lower wearing ring of the pump assembly in Figure 28；
Figure 32 shows the cross-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 utility model；
Figure 34 shows the cross-sectional view of the pump assembly in Figure 33；
Figure 35 shows the cross-sectional view of the piston bush of the pump assembly in Figure 33；And
Figure 36 shows the cross-sectional view of the lower wearing ring of the pump assembly in Figure 33.
Wherein, the above drawings include the following reference numerals:
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, retention bead；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 embodiment
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 utility model 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 such as " upper and lower " is usually to be directed to
For direction shown in the drawings, or on vertical, vertical or gravity direction；Similarly, for ease of understanding
And description, " left and right " is usually for shown in the drawings left and right；" inside and outside " refers to the profile relative to each component itself
It is inside and outside, but the above-mentioned noun of locality is not intended to limit the utility model.
Eccentric rotary easily occurs in order to solve the piston bush of pump assembly in the prior art, influences pump assembly working efficiency
The problem of, this application provides a kind of pump assembly, fluid machinery and heat exchange 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, and the first extension 41 protrudes into the centre bore of wearing ring 70 and the lower end with 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 end surface 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, guarantee 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, the surface towards piston bush 40 of upper flange 11 has recess portion 111, and the first extension 41 is stretched
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 and the inner surface of recess portion 111 limit
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 guarantees that piston bush 40 can be rotated relative to upper flange 11, and then guarantee the pump housing
The operational reliability of component.Piston bush 40 and 11 eccentric setting of upper flange, and eccentricity is the eccentric amount e of pump assembly.In this way,
Above-mentioned setting enables the first extension 41 of piston bush 40 in the recess portion 111 of upper flange 11 around the central axis of piston bush 40
Line (or central axis of recess portion 111) rotation guarantees 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
The inside cell wall or outside cell wall of structure, at least one layer of cyclic structure and 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 easier, 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 greater than the thickness of the first extension 41.In this way, above-mentioned setting guarantees that first prolongs
Extending portion 41 is located in groove, and then guarantees that groove can carry out limit stops to the first extension 41, promotes 11 pairs of work of upper flange
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
Side channel wall carries out limit stops close to the surface of the center side of piston bush 40 to the first extension 41, prevents from occurring therebetween
Radial displacement.Meanwhile in order to guarantee 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 guaranteed that groove can carry out the first extension 41
Radial limit, also enables the first extension 41 to rotate 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
Determine the eccentricity of pump assembly, so that the eccentricity of pump assembly is more easier to guarantee, 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 positioned 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 protrudes into piston bush 40 and the inner surface limit stops with 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 easier to guarantee, 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 successively threaded through upper flange 11, lives
Plug sleeve 40 and lower flange 12, and shaft 30 and upper flange 11 and lower flange 12 are coaxially disposed.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 exchange equipment (not shown), including above-mentioned fluid machinery.Optionally, heat exchange equipment
For air conditioner.
Embodiment two
The difference of pump assembly and embodiment one in embodiment two is: the structure of upper flange 11 and lower flange 12 is not
Together.
As shown in Fig. 5 to Fig. 8, the lower end surface 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 is able to carry out limit cooperation, prevents 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, guarantee the stable operation of piston bush 40, mention
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 guaranteed that limiting section 112 can carry out radial limit to the first extension 41, and also enabled the first extension 41 relative to limit
Position portion 112 rotates, and then promotes the operational reliability of pump assembly.
In the other embodiments being not shown in the accompanying drawings, limiting section is located at the outside of the first extension.Specifically, first
The surface of center side of the medial surface of extension to limiting section far from piston bush carries out limit stops, 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 is from the difference of embodiment two: 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 positioned 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, the upper surface of lower flange 12 is arranged in extension 80.Specifically, the extension 80 on lower flange 12 is to piston bush 40
Lower end carry out limit stops, with prevent the lower end of piston bush 40 relative to lower flange 12 occur radial direction displacement.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
The normal operation of pump assembly is interfered and influenced to piston bush 40 and 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 retention bead 43, retention bead 43 and extension towards the surface of lower flange 12
80 limit stops of portion.Specifically, retention bead 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 the limit stops of radial direction to retention bead 43, prevent piston
The displacement of radial direction occurs relative to lower flange 12 for the lower end of set 40.
In the other embodiments being not shown in the accompanying drawings, the upper surface of lower limiting board is arranged in extension.Specifically, under
Extension on limit 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
Limit 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
The difference of pump assembly and embodiment three in example IV is: the structure of upper flange 11 and piston bush 40 is not
Together, the setting position of extension 80 is different.
As shown in Figure 14 to Figure 18, the lower end surface of piston bush 40 has the 6th limiting groove 45, prolonging on lower limiting board 13
Extending portion 80 protrude 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 cell wall of the outer surface of extension 80 and the 6th limiting groove 45 limits
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
Limit 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 accomplish.
As shown in Figure 14 and Figure 15, upper flange 11 has recess portion 111 towards the surface of piston bush 40, and the first extension 41 is worn
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 end surface 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 is from the difference of embodiment two: 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 end surface 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 relative to lower flange 12 occur radial direction displacement.Meanwhile piston bush
40 upper end avoids piston bush so that the upper/lower terminal of piston bush 40 is limited support by 11 limited support of upper flange
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, the surface towards lower wearing ring 60 of piston bush 40 has retention bead 43, and retention bead 43 is stretched
In the centre bore for entering lower wearing ring 60, and limits and cooperate with the inner surface of the centre bore of lower wearing ring 60.In this way, retention bead 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 retention bead 43
Gear.The structure of above structure is simple, easy to accomplish.
Embodiment six
Pump assembly in embodiment six is from the difference of embodiment five: the structure of lower wearing ring 60 is different.
As shown in Figure 23 to Figure 27, the surface towards lower wearing ring 60 of piston bush 40 has retention bead 43, lower anti-attrition
The surface towards piston bush 40 of ring 60 has the 7th limiting groove 61, retention bead 43 protrude into the 7th limiting groove 61 and with
7th limiting groove, 61 limit stops.Specifically, in pump assembly operational process, the retention bead 43 of piston bush 40 is protruded 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 retention bead 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 cooperate
The displacement of radial direction occurs.
Optionally, retention bead 43 and the 7th limiting groove 61 in a ring, and retention bead 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 accomplish, processing.
Embodiment seven
The difference of pump assembly and embodiment five in embodiment seven is: 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, the surface towards piston bush 40 of lower wearing ring 60 has the 5th extension 62, and the 5th extension 62 protrudes into piston bush 40
And the inner surface limit stops with piston bush 40.Specifically, the 5th extension 62 of lower wearing ring 60 protrudes 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
The inner surface of structure, outermost layer cyclic structure and piston bush 40 carries out limit stops.In this way, above-mentioned setting is so that the 5th extension
62 structure more diversity reduces staff's so that the processing of lower wearing ring 60, manufacture are more easier, simply
Labor intensity.
It should be noted that the structure of pump assembly is without being limited thereto.In the other embodiments being not shown in the accompanying drawings, pump
Body component does not include lower limiting board, the lower end face contact of lower flange and wearing ring and cylinder.
Embodiment eight
The difference of pump assembly and embodiment five in embodiment eight is: 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, the surface towards piston bush 40 of lower wearing ring 60 has the 5th extension 62, and the lower end surface of piston bush 40 has the 6th limit
Position groove 45, the 5th extension 62 protrude into the 6th limiting groove 45 and with 45 limit stops of the 6th limiting groove.In this way, the 5th
Extension 62 protrudes into the 6th limiting groove 45, so that the structure of pump assembly is more compact.Meanwhile the knot of above structure
Structure is simple, easy to accomplish.
Specifically, in pump assembly operational process, the 5th extension 62 of lower wearing ring 60 protrudes 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 upper 70 limit stops of wearing ring, and then guarantee 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 embodiments being not shown in the accompanying drawings, pump
Body component does not include lower limiting board, the lower end face contact of lower flange and wearing ring and cylinder.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
In pump assembly operational process, the first extension of piston bush protrude into the centre bore of wearing ring and with upper method
Cooperation is limited between blue lower end surface, 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, guarantee 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 is only the embodiment of the utility model a part, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The range of the utility model protection all should belong in the every other embodiment obtained.
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 singular
Also it is 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 their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, 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 above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (16)
1. a kind of pump assembly characterized by comprising
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) protrude into the centre bore of the upper wearing ring (70) and with the upper flange
(11) cooperation is limited between lower end surface, 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 upper flange (11) towards the piston bush
(40) surface has 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 end surface 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
Structural member below the cylinder (20), the upper surface of the structural member have extension (80) and pass 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) protrudes into the piston bush
(40) the interior and inner surface limit stops with the piston bush (40).
8. pump assembly according to claim 4, which is characterized in that the lower end surface of the piston bush (40) has the 6th limit
Position groove (45), the extension (80) are protruded 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 cooperates between lower end surface 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 piston bush (40) towards the lower anti-attrition
The surface of ring (60) has retention bead (43), and the retention bead (43) is protruded into the centre bore of the lower wearing ring (60),
And it limits and cooperates 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 piston bush (40) towards the lower anti-attrition
The surface of ring (60) has retention bead (43), and the surface towards the piston bush (40) of the lower wearing ring (60) has the
Seven limiting grooves (61), the retention bead (43) protrude 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 lower wearing ring (60) towards the piston
The surface for covering (40) has the 5th extension (62), the 5th extension (62) protrude 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 lower wearing ring (60) towards the piston
The surface for covering (40) has the 5th extension (62), and the lower end surface of the piston bush (40) has the 6th limiting groove (45), institute
State the 5th extension (62) protrude 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 include:
Lower flange (12), positioned at the lower section of the piston component；
Shaft (30), the shaft (30) are successively threaded through the upper flange (11), the piston bush (40) and the lower flange
(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 pump assembly described in any one of claims 1 to 14.
16. a kind of heat exchange equipment, which is characterized in that including the fluid machinery described in claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144926.8U CN208578716U (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machine and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144926.8U CN208578716U (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machine and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208578716U true CN208578716U (en) | 2019-03-05 |
Family
ID=65510889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821144926.8U Withdrawn - After Issue CN208578716U (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machine and heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208578716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799105A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine and heat exchange equipment |
-
2018
- 2018-07-18 CN CN201821144926.8U patent/CN208578716U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799105A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine and heat exchange equipment |
| CN108799105B (en) * | 2018-07-18 | 2023-10-03 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machinery and heat exchange equipment |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20231003 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20231003 |