CN208595059U - 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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- CN208595059U CN208595059U CN201821145052.8U CN201821145052U CN208595059U CN 208595059 U CN208595059 U CN 208595059U CN 201821145052 U CN201821145052 U CN 201821145052U CN 208595059 U CN208595059 U CN 208595059U
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- 239000012530 fluid Substances 0.000 title claims abstract description 13
- 239000011324 bead Substances 0.000 claims description 39
- 230000014759 maintenance of location Effects 0.000 claims description 39
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 22
- 238000000354 decomposition reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 8
- 210000002421 cell wall Anatomy 0.000 description 7
- 241000233855 Orchidaceae Species 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 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: at least two structural members; the air cylinder is positioned between the two structural parts; 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 lower end face of the piston sleeve is provided with a limiting protrusion, and the piston sleeve is in limiting fit with a structural part located below the cylinder through the limiting protrusion so as to prevent the piston sleeve from displacing in the radial direction relative to the structural part. 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: extremely
Few two structural members；Cylinder, cylinder are located between two structural members；Piston component is arranged in cylinder, and piston component includes living
The lower end surface of plug sleeve and the piston being slidably arranged in piston bush, piston bush has retention bead, and piston bush passes through retention bead
It limits and cooperates with the structural member being located at below cylinder, to prevent piston bush relative to the displacement of structural member generation radial direction.
Further, the structural member below cylinder is lower flange.
Further, the surface towards piston bush of lower flange has the second limiting groove, and retention bead protrudes into the second limit
In the groove of position, to prevent piston bush relative to the displacement of lower flange generation radial direction.
Further, at least two structural members include lower flange and lower limiting board, and lower limiting board and lower flange are respectively positioned on gas
The lower section of cylinder, and lower limiting board is between cylinder and lower flange, retention bead and lower limiting board limit stops, to prevent piston
Cover the displacement that radial direction occurs relative to lower limiting board.
Further, retention bead protrudes into the centre bore of lower limiting board, and the inner surface with the centre bore of lower limiting board
Limit cooperation.
Further, lower limiting board has the 4th limiting groove towards the surface of piston bush, and retention bead protrudes into the 4th limit
Position groove in and with the 4th limiting groove limit stops.
Further, structural member includes upper flange, and pump assembly further includes upper wearing ring, and upper wearing ring is located in cylinder,
Upper flange is located at the top of cylinder, between the upper surface of piston bush and upper wearing ring limit cooperation, with prevent piston bush relative to
The displacement of upper flange generation radial direction.
Further, the upper surface of piston bush has the first extension, and the first extension protrudes into the centre bore of wearing ring
It is interior, and limit and cooperate with the inner surface of the centre bore of upper wearing ring.
Further, upper wearing ring has the 5th limiting groove towards the surface of piston bush, and the upper surface of piston bush has
First extension, the first extension protrude into the 5th limiting groove and with the 5th limiting groove limit stops.
Further, upper wearing ring has the 4th extension towards the surface of piston bush, and the 4th extension protrudes into piston bush
Interior and inner surface limit stops with piston bush.
Further, upper wearing ring has the 4th extension towards the surface of piston bush, and the upper surface of piston bush has the
One limiting groove, the 4th extension protrude into the first limiting groove and with the first limiting groove limit stops.
Further, structural member includes upper flange, and pump assembly further includes upper wearing ring, and upper wearing ring is located in cylinder,
Upper flange is located at the top of cylinder, and upper wearing ring has centre bore, and the upper surface of piston bush has the first extension, and first extends
Portion protrudes into the centre bore of wearing ring and limits cooperation between the lower end surface of upper flange, to prevent piston bush relative to upper method
The displacement of radial direction occurs for orchid.
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, structural member includes the upper flange above piston component and the laxative remedy below piston component
Orchid, pump assembly further include: shaft, shaft are successively threaded through upper flange, piston bush and lower flange, and shaft and upper flange and under
Flange coaxial setting.
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 at least two structural members, cylinder and piston component.Its
In, cylinder is located between two structural members.Piston component is arranged in cylinder, and piston component includes piston bush and is slidably arranged in
Piston in piston bush, the lower end surface of piston bush have retention bead, and piston bush is by retention bead and is located at below cylinder
Structural member limit cooperation, to prevent piston bush relative to the displacement of structural member generation radial direction.In this way, being run in pump assembly
In the process, the retention bead positioned at piston bush lower end cooperates with the structural member limit being disposed below, then the lower end quilt of piston bush
Structural member limit, 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 cross-sectional view of the piston bush of the pump assembly in Fig. 1；
Fig. 4 shows the top view of the lower flange 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 cross-sectional view of the piston bush of the pump assembly in Fig. 5；
Fig. 8 shows the decomposition texture schematic diagram of the embodiment three of pump assembly according to the present utility model；
Fig. 9 shows the cross-sectional view of the pump assembly in Fig. 8；
Figure 10 shows the cross-sectional view of the piston bush of the pump assembly in Fig. 8；
Figure 11 shows the bottom view of the lower limiting board of the pump assembly in Fig. 8；
Figure 12 shows the cross-sectional view of the lower limiting board in Figure 11；
Figure 13 shows the decomposition texture schematic diagram of the example IV of pump assembly according to the present utility model；
Figure 14 shows the cross-sectional view of the pump assembly in Figure 13；
Figure 15 shows the schematic perspective view of the upper flange of the pump assembly in Figure 13；
Figure 16 shows the cross-sectional view of the piston bush of the pump assembly in Figure 13；
Figure 17 shows the decomposition texture schematic diagrams of the embodiment five of pump assembly according to the present utility model；
Figure 18 shows the cross-sectional view of the pump assembly in Figure 17；
Figure 19 shows the schematic perspective view of the upper flange of the pump assembly in Figure 17；
Figure 20 shows the top view of the lower flange of the pump assembly in Figure 17；
Figure 21 shows the cross-sectional view of the piston bush of the pump assembly in Figure 17；
Figure 22 shows the decomposition texture schematic diagram of the embodiment six of pump assembly according to the present utility model；
Figure 23 shows the cross-sectional view of the pump assembly in Figure 22；
Figure 24 shows the cross-sectional view of the piston bush of the pump assembly in Figure 22；
Figure 25 shows the bottom view of the lower limiting board of the pump assembly in Figure 22；
Figure 26 shows the cross-sectional view of the lower limiting board in Figure 25；
Figure 27 shows the decomposition texture schematic diagram of the embodiment seven of pump assembly according to the present utility model；
Figure 28 shows the cross-sectional view of the pump assembly in Figure 27；
Figure 29 shows the cross-sectional view of the piston bush of the pump assembly in Figure 27；
Figure 30 shows the schematic perspective view of the upper wearing ring of the pump assembly in Figure 27；
Figure 31 shows the decomposition texture schematic diagram of the embodiment eight of pump assembly according to the present utility model；
Figure 32 shows the cross-sectional view of the pump assembly in Figure 31；
Figure 33 shows the cross-sectional view of the piston bush of the pump assembly in Figure 31；
Figure 34 shows the schematic perspective view of the upper wearing ring of the pump assembly in Figure 31；
Figure 35 shows the decomposition texture schematic diagram of the embodiment nine of pump assembly according to the present utility model；
Figure 36 shows the cross-sectional view of the pump assembly in Figure 35；
Figure 37 shows the cross-sectional view of the piston bush of the pump assembly in Figure 35；
Figure 38 shows the schematic perspective view of the upper wearing ring of the pump assembly in Figure 35；
Figure 39 shows the bottom view of the lower limiting board of the pump assembly in Figure 35；And
Figure 40 shows the cross-sectional view of the lower limiting board in Figure 39.
Wherein, the above drawings include the following reference numerals:
11, upper flange；111, recess portion；112, limiting section；12, lower flange；121, the second limiting groove；13, lower limiting board；
131, the 4th limiting groove；20, cylinder；30, shaft；40, piston bush；41, the first extension；42, the first limiting groove；43,
Retention bead；44, step surface；50, piston；70, upper wearing ring；71, the 5th limiting groove；72, the 4th 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.
As shown in Figures 1 to 4, pump assembly includes two structural members, cylinder 20 and piston component.Wherein, 20, cylinder
Between two structural members.Piston component is arranged in cylinder 20, and piston component includes piston bush 40 and is slidably arranged in piston
Piston 50 in set 40, the lower end surface of piston bush 40 have retention bead 43, and piston bush 40 is by retention bead 43 and is located at gas
The structural member of 20 lower section of cylinder limits cooperation, to prevent piston bush 40 relative to the displacement of structural member generation radial direction.
Retention bead 43 and the structural member that is disposed below in pump assembly operational process, positioned at 40 lower end of piston bush
Limit cooperation, then the lower end of piston bush 40 is by structural member limit, support, and then prevents piston bush 40 from diameter occurring in the process of running
Movement on direction, guarantee piston bush 40 can normal rotation, the piston bush for solving pump assembly in the prior art easily sends out
Raw eccentric rotary influences the problem of pump assembly working efficiency, improves the operational reliability and working performance of pump assembly.
As shown in Figure 2 and Figure 4, the structural member positioned at 20 lower section of cylinder is lower flange 12.Wherein, the direction of lower flange 12 is living
The surface of plug sleeve 40 has the second limiting groove 121, and retention bead 43 protrudes into the second limiting groove 121, to prevent piston bush
40 the displacement of radial direction occurs relative to lower flange 12.In this way, the limit in pump assembly operational process, on piston bush 40
Protrusion 43 stretches in the second limiting groove 121 of lower flange 12, the table of the cell wall of the second limiting groove 121 to retention bead 43
Face carries out limit stops, to realize that lower flange 12 to the limit stops of the lower end of piston bush 40, avoids the lower end phase of piston bush 40
Lower flange 12 occurs the displacement of radial direction.
Specifically, the second limiting groove 121 eccentric setting on lower flange 12, retention bead 43 protrude into the second limiting groove
In 121, to realize lower flange 12 to the limit stops of piston bush 40.
Optionally, the second limiting groove 121 is annular groove, and eccentricity of the annular groove on lower flange 12 is e.
As depicted in figs. 1 and 2, two structural members further include the upper flange 11 above piston component, and pump assembly is also
Including shaft 30.Wherein, shaft 30 is successively threaded through upper flange 11, piston bush 40 and lower flange 12, and shaft 30 and upper flange
11 and lower flange 12 be coaxially disposed.In pump assembly operational process, shaft 30 is rotated around the central axis of upper flange 11, piston
Set 40 is rotated around the central axis of recess portion 111, and piston 50 is only moved back and forth relative to piston bush 40, and piston 50 is relative to shaft 30
It moves back and forth, two reciprocating motions are mutually perpendicular to, i.e. the operation of pump assembly follows cross slides principle.With piston 50
With the reciprocating motion between piston bush 40, the head cambered surface of piston 50, the inner surface of cylinder 20, piston bush 40 pilot hole between
Two cavity volumes formed gradually change, and complete air-breathing, 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
Pump assembly in embodiment two is from the difference of embodiment one: the structure of structural member is different.
As shown in Figures 5 to 7, at least two structural members include lower flange 12 and lower limiting board 13, and lower limiting board 13 is under
Flange 12 is respectively positioned on the lower section of cylinder 20, and lower limiting board 13, between cylinder 20 and lower flange 12, retention bead 43 is under
13 limit stops of limit plate, to prevent piston bush 40 relative to the displacement of the generation radial direction of lower limiting board 13.
As shown in Figures 5 to 7, retention bead 43 protrudes into the centre bore of lower limiting board 13, and in lower limiting board 13
The inner surface in heart hole limits cooperation.In this way, the hole wall of the centre bore of lower limiting board 13 is to limit in pump assembly operational process
The outer surface limit stops of protrusion 43 avoid piston to realize limit, support of the lower limiting board 13 to 40 radial direction of piston bush
The displacement of radial direction occurs relative to lower flange 12 and lower limiting board 13 for the lower end of set 40, and guarantee piston bush 40 stablizes fortune
Row, promotes the operational reliability and working efficiency of pump assembly.
Optionally, the centre bore of retention bead 43 and lower limiting board 13 is coaxially disposed.
Optionally, the cyclic structure of retention bead 43.The structure of above structure is simple, easy to accomplish, processing.
Embodiment three
Pump assembly in embodiment three is from the difference of embodiment two: the structure of lower limiting board 13 is different.
As shown in Fig. 8 to Figure 12, lower limiting board 13 has the 4th limiting groove 131, limit towards the surface of piston bush 40
Protrusion 43 protrude into the 4th limiting groove 131 and with 131 limit stops of the 4th limiting groove.In this way, being run in pump assembly
The cell wall of Cheng Zhong, the outer surface of retention bead 43 and the 4th limiting groove 131, which limits, to be cooperated, to realize lower limiting board 13 to piston
The limit of the radial direction of set 40 promotes the operational reliability of pump assembly so that the operation of piston bush 40 is more steady.
Optionally, the 4th limiting groove 131 is annular groove, and the centre bore of annular groove and lower limiting board 13 is coaxially disposed.
The structure of above structure is simple, easy to accomplish, processing.
Example IV
The difference of pump assembly and embodiment two in example IV is: the structure of upper flange 11 and piston bush 40 is not
Together.
As shown in figure 13 to figure 16, the lower end surface of upper flange 11 has the limiting section 112 extended towards piston bush 40, piston
The upper end of set 40 has step surface 44.Wherein, step surface 44 is located at piston bush 40 towards the end of upper flange 11, limiting section 112
It protrudes into the step surface 44 of piston bush 40 to 44 limit stops of step surface, to realize upper flange 11 to 40 radial direction of piston bush
Limited support.
Optionally, limiting section 112 is ring structure, and ring structure and 11 eccentric setting of upper flange, eccentricity e.On
The structure for stating structure is simple, easy to accomplish.
It should be noted that the structure of limiting section 112 is without being limited thereto.Optionally, limiting section 112 is surrounded by multiple arc sections
It is formed, and multiple arc sections surround the centre bore coaxial arrangement of the circle and upper flange 11 that are formed.
Embodiment five
Pump assembly in embodiment five is from the difference of embodiment one: the structure of pump assembly is different.
As shown in figure 17 to figure 21, pump assembly further includes upper wearing ring 70, and upper wearing ring 70 is located in cylinder 20, upper method
Orchid 11 is located at the top of cylinder 20, cooperation is limited between the upper surface of piston bush 40 and upper wearing ring 70, to prevent piston bush 40
The displacement of radial direction occurs relative to upper flange 11.In this way, in pump assembly operational process, on the upper end of piston bush 40
The limit of wearing ring 70, support, the upper end of piston bush 40 prevent piston bush 40 from running by the limit of lower flange 12, support
Occur movement in the radial direction in journey, guarantee piston bush 40 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 pump assembly operational reliability and
Working performance.
As shown in Figure 17, Figure 18 and Figure 21, the upper surface of piston bush 40 has the first extension 41, and the first extension 41 is stretched
In the centre bore for entering upper wearing ring 70, and limits and cooperate with the inner surface of the centre bore of upper wearing ring 70.Specifically, in pump housing group
In part operational process, the first extension 41, which is protruded into the centre bore of wearing ring 70 and can be limited with the inner surface of centre bore, matches
It closes, the limit of radial direction is carried out with the upper end to piston bush 40, prevent the upper end of piston bush 40 is opposite from occurring with upper flange 11
The displacement of radial direction avoids piston bush 40 and piston 50 or 20 recurring structure of cylinder from interfering and influence the normal fortune of pump assembly
Row.The structure of above structure is simple, is easily worked, realizes.
In the present embodiment, in a ring, and the first extension 41 is coaxially disposed the first extension 41 with piston bush 40.This
Sample, above-mentioned setting enable the first extension 41 of piston bush 40 in the centre bore of upper wearing ring 70 in piston bush 40
The rotation of mandrel line, in guarantees wearing ring 70 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 inner surface of the centre bore of structure, outermost cyclic structure and upper wearing ring 70 carries out limit stops.In this way, above-mentioned setting makes
The structure more diversity of the first extension 41 is obtained, so that the processing of piston bush 40, manufacture are more easier, simply, is reduced
The labor intensity of staff.
Optionally, the first extension 41 is bulge loop, and bulge loop and piston bush 40 are coaxially disposed.
It should be noted that the structure of the first extension 41 is without being limited thereto.Optionally, the first extension 41 is at least one
Protrusion, when protrusion is multiple, multiple protrusions are coaxially disposed around the circle and piston bush 40 formed.
As shown in Figure 17 and Figure 18, the lower end surface of upper flange 11 has the limiting section 112 extended towards piston bush 40, piston
First extension 41 of set 40 cooperates with the limit of limiting section 112.In this way, above-mentioned setting is so that the first extension 41 leans near and far
The surface of central axis from piston bush 40 is limited backstop, to prevent piston bush 40 from radial direction occurs relative to upper flange 11
Displacement.
Specifically, limiting section 112 is located at the inside of the first extension 41, then the lateral surface of limiting section 112 extends to first
The surface of 40 central axis of close piston bush in portion 41 carries out limit stops, avoids piston bush 40 that the fortune towards center axis thereof occurs
It is dynamic.Meanwhile the hole wall of the centre bore of upper wearing ring 70 carries out the surface of 40 central axis of separate piston bush of the first extension 41
Limit stops avoid piston bush 40 that the movement far from center axis thereof occurs, and then realize to the radial direction of piston bush 40
Limit, support, promote the running stability of pump assembly.
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 recess portion
111, the first extension 41 on piston bush 40, which is stretched in recess portion 111 and limited with recess portion 111, to be cooperated.The structure of above structure
Simply, easy to accomplish.
It should be noted that the structure of lower flange 12 is without being limited thereto.Optionally, the upper surface of lower flange 12 has eccentric convex
Platform, eccentricity of the eccentric boss on lower flange 12 are e.Wherein, eccentric boss stretches in the lower end of piston bush 40, to work
The lower end of plug sleeve 40 carries out limit stops, avoids piston bush 40 that the displacement of radial direction occurs relative to lower flange 12.
Embodiment six
Pump assembly in embodiment six is from the difference of embodiment five: the structure of pump assembly is different.
As shown in Figure 22 to Figure 26, structural member includes upper flange 11, lower flange 12 and lower limiting board 13, and pump assembly also wraps
Wearing ring 70 is included, upper wearing ring 70 is located in cylinder 20, and upper flange 11 is located at the top of cylinder 20, the upper surface of piston bush 40
Cooperation is limited, between upper wearing ring 70 to prevent piston bush 40 relative to the displacement of the generation radial direction of upper flange 11.Meanwhile
Lower limiting board 13 and lower flange 12 are respectively positioned on the lower section of cylinder 20, and lower limiting board 13 is between cylinder 20 and lower flange 12,
The lower end surface of piston bush 40 has retention bead 43, and piston bush 40 is cooperated by retention bead 43 and the limit of lower limiting board 13.This
Sample, in pump assembly operational process, retention bead 43 and lower limiting board 13 limit positioned at 40 lower end of piston bush cooperate, then live
The lower end of plug sleeve 40 is limited by structural member, supports, and the upper end of piston bush 40 realizes piston bush by upper 70 limit stops of wearing ring
40 upper and lower end is limited the technical effect of backstop, and then prevents piston bush 40 from occurring in the process of running in the radial direction
Movement, guarantee piston bush 40 can normal rotation, the piston bush for solving pump assembly in the prior art easily occurs eccentric turn
It moves, influence the problem of pump assembly working efficiency, improve the operational reliability and working performance of pump assembly.
Specifically, lower limiting board 13 has the 4th limiting groove 131 towards the surface of piston bush 40, and retention bead 43 protrudes into
In 4th limiting groove 131 and with 131 limit stops of the 4th limiting groove.In this way, in pump assembly operational process, limit convex
It plays 43 outer surface and the cell wall of the 4th limiting groove 131 limits and cooperates, to realize lower limiting board 13 to the radial direction of piston bush 40
The limit in direction promotes the operational reliability of pump assembly so that the operation of piston bush 40 is more steady.
Optionally, the 4th limiting groove 131 is annular groove, and the centre bore of annular groove and lower limiting board 13 is coaxially disposed.
The structure of above structure is simple, easy to accomplish, processing.
It should be noted that retention bead 43 and the matching relationship of lower limiting board 13 are without being limited thereto.Optionally, retention bead
43 stretch in the centre bore of lower limiting board 13 and limit cooperation with centre bore.In this way, in pump assembly operational process, center
The hole wall in hole can carry out limit stops to the outer surface of retention bead 43, to realize lower limiting board 13 to the lower end of piston bush 40
Limit, support, prevent piston bush 40 from the displacement of radial direction occurring relative to lower flange 12 and lower limiting board 13, promote the pump housing
The operational reliability and working efficiency of component.
As shown in Figure 22 to Figure 24, the upper surface of piston bush 40 has the first extension 41, and the first extension 41 protrudes into
In the centre bore of wearing ring 70, and limits and cooperate with the inner surface of the centre bore of upper wearing ring 70.Specifically, it is transported in pump assembly
During row, the first extension 41, which is protruded into the centre bore of wearing ring 70 and can be limited with the inner surface of centre bore, to be cooperated,
The limit that radial direction is carried out with the upper end to piston bush 40 prevents the upper end of piston bush 40 is opposite from radial direction occurs with upper flange 11
The displacement in direction avoids piston bush 40 and piston 50 or 20 recurring structure of cylinder from interfering and influence the normal operation of pump assembly.
The structure of above structure is simple, is easily worked, realizes.
Embodiment seven
Pump assembly in embodiment seven is from the difference of embodiment six: the upper structure of wearing ring 70 is different.
As shown in Figure 27 to Figure 30, upper wearing ring 70 has the 5th limiting groove 71, piston towards the surface of piston bush 40
The upper surface of set 40 has the first extension 41, the first extension 41 protrude into the 5th limiting groove 71 and with the 5th limiting groove
71 limit stops.The structure of above structure is simple, easy to accomplish.
Specifically, in pump assembly operational process, the outer surface of the first extension 41 of piston bush 40 and the 5th limit
The cell wall limit stops of groove 71, and then wearing ring 70 is realized to the limit stops of the upper end of piston bush 40, prevent piston
The displacement of radial direction occurs relative to upper flange 11 for the upper end of set 40, promotes the operational reliability of pump assembly.
Optionally, the 5th limiting groove 71 is annular groove, and the centre bore of annular groove and upper wearing ring 70 is coaxially disposed.
Optionally, the first extension 41 is ring structure, and the 5th limiting groove 71 and the first extension 41 are coaxially disposed.
As shown in Figure 27 to Figure 29, lower limiting board 13 has the 4th limiting groove 131, the retention bead of 40 lower end of piston bush
43 stretch in the 4th limiting groove 131, and the cell wall of the 4th limiting groove 131 limits only the outer surface of retention bead 43
Gear to realize limit, support of the lower limiting board 13 to 40 lower end of piston bush, and then promotes the operation stability of pump assembly.
Embodiment eight
Pump assembly in embodiment eight is from the difference of embodiment six: the upper structure of wearing ring 70 is different.
As shown in Figure 31 to Figure 34, upper wearing ring 70 has the 4th extension 72 towards the surface of piston bush 40, and the 4th prolongs
Extending portion 72 protrudes into piston bush 40 and the inner surface limit stops with piston bush 40.Specifically, have on the inner surface of piston bush 40
There is step surface 44, the 4th extension 72 is protruded into 44 limit stops of step surface in step surface 44, to realize upper 70 pairs of work of wearing ring
The limit of 40 radial direction of plug sleeve.
Optionally, in a ring, and the centre bore of the 4th extension 72 and upper wearing ring 70 is coaxially disposed the 4th extension 72.
It should be noted that the structure of the 4th extension 72 is without being limited thereto.Optionally, the 4th extension 72 is double-layer circular
The inner surface of structure, outermost layer cyclic structure and step surface 44 carries out limit stops.In this way, above-mentioned setting is so that the 4th extension
72 structure more diversity reduces staff's so that the processing of upper wearing ring 70, manufacture are more easier, simply
Labor intensity.
Embodiment nine
The difference of pump assembly and embodiment six in embodiment nine is: the structure of upper wearing ring 70 and piston bush 40 is not
Together.
As shown in Figure 35 to Figure 40, upper wearing ring 70 has the 4th extension 72, piston bush towards the surface of piston bush 40
40 upper surface has the first limiting groove 42, the 4th extension 72 protrude into the first limiting groove 42 and with the first limiting groove
42 limit stops.Specifically, in pump assembly operational process, the 4th extension 72 is protruded into the first limiting groove 42, then and
The cell wall limit stops of the outer surface of four extensions 72 and the first limiting groove 42, to realize upper wearing ring 70 to 40 diameter of piston bush
Limit to direction.
In the present embodiment, the 4th extension 72 and the first limiting groove 42 in a ring, and the 4th extension 72, first limit
Position groove 42 and piston bush 40 are coaxially disposed.The structure of above structure is simple, easy to accomplish, processing.
In the present embodiment, lower limiting board 13 has the 4th limiting groove 131, and the retention bead 43 of 40 lower end of piston bush is stretched
Entering to the 4th limiting groove 131, the cell wall of the 4th limiting groove 131 carries out limit stops to the outer surface of retention bead 43,
To realize limit, support of the lower limiting board 13 to 40 lower end of piston bush, and then promote the operation stability of pump assembly.
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 retention bead positioned at piston bush lower end is limited with the structural member being disposed below
Cooperation, then the lower end of piston bush is by structural member limit, support, and then prevents piston bush from occurring in the process of running in the radial direction
Movement, guarantee piston bush can normal rotation, solve pump assembly in the prior art piston bush easily occur eccentric rotary,
The problem of influencing pump assembly working efficiency, improve the operational reliability and working performance of pump assembly.
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 (17)
1. a kind of pump assembly characterized by comprising
At least two structural members；
Cylinder (20), the cylinder (20) are located between two structural members；
Piston component, in the cylinder (20), the piston component includes piston bush (40) and is slidably arranged in described for setting
The lower end surface of piston (50) in piston bush (40), the piston bush (40) has retention bead (43), the piston bush (40)
It is limited and is cooperated with the structural member being located at below the cylinder (20) by the retention bead (43), to prevent the piston
Cover the displacement that radial direction occurs relative to the structural member for (40).
2. pump assembly according to claim 1, which is characterized in that the structural member being located at below the cylinder (20)
For lower flange (12).
3. pump assembly according to claim 2, which is characterized in that the lower flange (12) towards the piston bush
(40) surface has the second limiting groove (121), and the retention bead (43) is protruded into second limiting groove (121),
To prevent the piston bush (40) relative to the displacement of the lower flange (12) generation radial direction.
4. pump assembly according to claim 1, which is characterized in that at least two structural members include lower flange (12)
And lower limiting board (13), the lower limiting board (13) and the lower flange (12) are respectively positioned on the lower section of the cylinder (20), and institute
Lower limiting board (13) are stated between the cylinder (20) and the lower flange (12), the retention bead (43) and the lower limit
Position plate (13) limit stops, to prevent the piston bush (40) relative to the position of the lower limiting board (13) generation radial direction
It moves.
5. pump assembly according to claim 4, which is characterized in that the retention bead (43) protrudes into the lower limiting board
(13) it in centre bore, and limits and cooperates with the inner surface of the centre bore of the lower limiting board (13).
6. pump assembly according to claim 4, which is characterized in that the lower limiting board (13) is towards the piston bush
(40) surface has the 4th limiting groove (131), the retention bead (43) protrude into the 4th limiting groove (131) and
With the 4th limiting groove (131) limit stops.
7. pump assembly according to any one of claim 1 to 6, which is characterized in that the structural member includes upper flange
(11), the pump assembly further includes upper wearing ring (70), and the upper wearing ring (70) is located in the cylinder (20), it is described on
Flange (11) is located at the top of the cylinder (20), limits between the upper surface and the upper wearing ring (70) of the piston bush (40)
Position cooperation, to prevent the piston bush (40) relative to the displacement of the upper flange (11) generation radial direction.
8. pump assembly according to claim 7, which is characterized in that the upper surface of the piston bush (40) has first to prolong
Extending portion (41), first extension (41) are protruded into the centre bore of the upper wearing ring (70), and with the upper wearing ring
(70) inner surface of centre bore limits cooperation.
9. pump assembly according to claim 7, which is characterized in that the upper wearing ring (70) is towards the piston bush
(40) surface has the 5th limiting groove (71), and the upper surface of the piston bush (40) has the first extension (41), described
First extension (41) protrude into the 5th limiting groove (71) and with the 5th limiting groove (71) limit stops.
10. pump assembly according to claim 7, which is characterized in that the upper wearing ring (70) is towards the piston bush
(40) surface has the 4th extension (72), the 4th extension (72) protrude into the piston bush (40) and with the work
The inner surface limit stops of plug sleeve (40).
11. pump assembly according to claim 7, which is characterized in that the upper wearing ring (70) is towards the piston bush
(40) surface has the 4th extension (72), and the upper surface of the piston bush (40) has the first limiting groove (42), described
4th extension (72) protrude into first limiting groove (42) and with the first limiting groove (42) limit stops.
12. pump assembly according to any one of claim 1 to 6, which is characterized in that the structural member includes upper flange
(11), the pump assembly further includes upper wearing ring (70), and the upper wearing ring (70) is located in the cylinder (20), it is described on
Flange (11) is located at the top of the cylinder (20), and the upper wearing ring (70) has a centre bore, the piston bush (40) it is upper
End face has the first extension (41), first extension (41) protrude into the centre bore of the upper wearing ring (70) and with institute
It states and limits cooperation between the lower end surface of upper flange (11), to prevent the piston bush (40) from occurring relative to the upper flange (11)
The displacement of radial direction.
13. pump assembly according to claim 12, 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).
14. pump assembly according to claim 12, which is characterized in that the lower end surface of the upper flange (11) has direction
The limiting section (112) that the piston bush (40) extends, first extension (41) and the limiting section (112) limit stops,
To prevent the piston bush (40) relative to the displacement of the upper flange (11) generation radial direction.
15. pump assembly according to claim 1, which is characterized in that the structural member includes being located at the piston component
The upper flange (11) of top and the lower flange (12) below the piston component, the pump assembly further include:
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).
16. a kind of fluid machinery, which is characterized in that including pump assembly described in any one of claims 1 to 15.
17. a kind of heat exchange equipment, which is characterized in that including the fluid machinery described in claim 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821145052.8U CN208595059U (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 |
|---|---|---|---|
| CN201821145052.8U CN208595059U (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machine and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595059U true CN208595059U (en) | 2019-03-12 |
Family
ID=65603329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821145052.8U Active CN208595059U (en) | 2018-07-18 | 2018-07-18 | Pump body assembly, fluid machine and heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916046A (en) * | 2018-07-18 | 2018-11-30 | 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 CN201821145052.8U patent/CN208595059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916046A (en) * | 2018-07-18 | 2018-11-30 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine and heat exchange equipment |
| CN108916046B (en) * | 2018-07-18 | 2024-04-16 | 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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