CN208564963U - Pump assembly, fluid machinery and heat exchange equipment - Google Patents
Pump assembly, fluid machinery and heat exchange equipment Download PDFInfo
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- CN208564963U CN208564963U CN201821143074.0U CN201821143074U CN208564963U CN 208564963 U CN208564963 U CN 208564963U CN 201821143074 U CN201821143074 U CN 201821143074U CN 208564963 U CN208564963 U CN 208564963U
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- pump assembly
- piston bush
- extension
- piston
- wearing ring
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Abstract
The utility model provides a kind of pump assembly, fluid machinery and heat exchange equipment.Wherein, pump assembly includes: upper flange；Upper wearing ring；Cylinder, upper wearing ring are located in cylinder, and upper flange is located at the top of cylinder；Piston component is arranged in cylinder, and piston component includes piston bush and the piston that is slidably arranged in piston bush, and cooperation is limited between the upper surface of piston bush and upper wearing ring, to prevent piston bush from the displacement of radial direction occurs relative to upper flange.The utility model efficiently solves the problems, such as that the piston bush of pump assembly in the prior art easily occurs eccentric rotary, influences pump assembly working efficiency.
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, the upper surface of piston bush and upper wearing ring it
Between limit cooperation, with prevent piston bush relative to upper flange occur radial direction displacement.
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, 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 limits cooperation between the upper surface of piston bush and upper wearing ring, to prevent
Only the displacement of radial direction occurs relative to upper flange for piston bush.In this way, in pump assembly operational process, the upper end of piston bush
It by the limit of upper wearing ring, support, and then prevents piston bush from movement in the radial direction occurring in the process of running, guarantees piston bush
Can normal rotation, solve pump assembly in the prior art piston bush easily occur eccentric rotary, influence pump assembly work
The problem of efficiency, improves 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 decomposition texture schematic diagram of the embodiment two of pump assembly according to the present utility model；
Fig. 5 shows the cross-sectional view of the pump assembly in Fig. 4；
Fig. 6 shows the schematic perspective view of the upper wearing ring of the pump assembly in Fig. 4；
Fig. 7 shows the cross-sectional view of the piston bush of the pump assembly in Fig. 4；
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 schematic perspective view of the upper wearing ring of the pump assembly in Fig. 8；
Figure 11 shows the cross-sectional view of the piston bush of the pump assembly in Fig. 8；
Figure 12 shows the decomposition texture schematic diagram of the example IV of pump assembly according to the present utility model；
Figure 13 shows the cross-sectional view of the pump assembly in Figure 12；
Figure 14 shows the schematic perspective view of the upper wearing ring of the pump assembly in Figure 12；
Figure 15 shows the cross-sectional view of the piston bush of the pump assembly in Figure 12；
Figure 16 shows the decomposition texture schematic diagram of the embodiment five of pump assembly according to the present utility model；
Figure 17 shows the cross-sectional views of the pump assembly in Figure 16；
Figure 18 shows the cross-sectional view of the piston bush of the pump assembly in Figure 16；
Figure 19 shows the cross-sectional view of the lower limiting board of the pump assembly in Figure 16；
Figure 20 shows the decomposition texture schematic diagram of the embodiment six of pump assembly according to the present utility model；
Figure 21 shows the cross-sectional view of the pump assembly in Figure 20；
Figure 22 shows the cross-sectional view of the lower limiting board of the pump assembly in Figure 20；
Figure 23 shows the decomposition texture schematic diagram of the embodiment seven 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 top view of the lower flange of the pump assembly in Figure 23；
Figure 26 shows the decomposition texture schematic diagram of the embodiment eight of pump assembly according to the present utility model；
Figure 27 shows the cross-sectional view of the pump assembly in Figure 26；
Figure 28 shows the schematic perspective view of the lower wearing ring of the pump assembly in Figure 26；
Figure 29 shows the cross-sectional view of the piston bush of the pump assembly in Figure 26；
Figure 30 shows the decomposition texture schematic diagram of the embodiment nine of pump assembly according to the present utility model；
Figure 31 shows the cross-sectional view of the pump assembly in Figure 30；
Figure 32 shows the schematic perspective view of the lower wearing ring of the pump assembly in Figure 30；
Figure 33 shows the cross-sectional view of the piston bush of the pump assembly in Figure 30；
Figure 34 shows the decomposition texture schematic diagram of the embodiment ten of pump assembly according to the present utility model；
Figure 35 shows the cross-sectional view of the pump assembly in Figure 34；
Figure 36 shows the schematic perspective view of the lower wearing ring of the pump assembly in Figure 34；And
Figure 37 shows the cross-sectional view of the piston bush of the pump assembly in Figure 34.
Wherein, the above drawings include the following reference numerals:
11, upper flange；12, lower flange；13, lower limiting board；14, upper limit plate；20, cylinder；30, shaft；40, piston
Set；41, the first extension；42, the first limiting groove；43, retention bead；44, step surface；45, the 6th limiting groove；50, living
Plug；60, lower wearing ring；61, the 7th limiting groove；62, the 5th extension；70, upper wearing ring；71, the 5th limiting groove；72,
4th extension；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 Figure 1 to Figure 3, 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, between the upper surface of piston bush 40 and upper wearing ring 70
Limit cooperation, 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 upper end of piston bush 40 is by upper wearing ring
70 limits, support, and then prevent piston bush 40 from movement in the radial direction occurring in the process of running, guarantee that piston bush 40 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.
As shown in Figure 1 to Figure 3, the upper surface of piston bush 40 has the first extension 41, and the first extension 41, which protrudes into, to be subtracted
In the centre bore of bull ring 70, and limits and cooperate with the inner surface of the centre bore of upper wearing ring 70.Specifically, it is run in pump assembly
In the process, the first extension 41 is protruded into the centre bore of wearing ring 70 and can be limited with the inner surface of centre bore and cooperates, with
The limit that radial direction is carried out to the upper end of piston bush 40 prevents the upper end of piston bush 40 is opposite from radial side occurs with upper flange 11
To displacement, avoid piston bush 40 and piston 50 or the interference of 20 recurring structure of cylinder and influence the normal operation of pump assembly.On
The structure for stating 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 guarantees that piston bush 40 can be rotated relative to upper flange 11, and then guarantees the reliable for operation of pump assembly
Property.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 is so that living
First extension 41 of plug sleeve 40 can be in the centre bore of upper limit plate 14 on the center axis thereof of piston bush 40, guarantee
Limit plate 14 is 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 limit plate 14 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 depicted in figs. 1 and 2, pump assembly further includes the lower flange 12 positioned at 20 lower section of cylinder.Wherein, lower flange 12
Upper surface has eccentric boss, and eccentric boss can extend into piston bush 40, to carry out the limit of radial direction to piston bush 40
Position.Meanwhile the upper end of piston bush 40 is by upper 70 limited support of wearing ring, so that the upper/lower terminal of piston bush 40 is limited
Position support avoids piston bush 40 and piston 50 or 20 recurring structure of cylinder from interfering and influence the normal operation of pump assembly, is promoted
The operational reliability and working performance of pump assembly.
As shown in Fig. 2, the eccentric boss that 12 upper surface of lower flange is set protrude into piston bush 40 and with piston bush 40
Inner surface limit stops.Specifically, the eccentric boss of lower flange 12 stretches to the inner surface of piston bush 40, to piston bush 40
Lower end carries out limit stops, to realize limit of the lower flange 12 to 40 radial direction of piston bush.
It should be noted that the structure of lower flange 12 is without being limited thereto.Optionally, the upper surface of lower flange 12 is plane.
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, and shaft 30 and upper flange 11 and lower flange 12 are coaxially disposed.Specifically, in pump assembly operational process
In, shaft 30 is rotated around the central axis of upper flange 11, and piston bush 40 is rotated around the centre bore of upper wearing ring 70, and piston 50 is opposite
It is only moved back and forth in piston bush 40, piston 50 is moved back and forth relative to shaft 30, and two reciprocating motions are mutually perpendicular to, i.e. pump housing group
The operation of part follows cross slides principle.With the reciprocating motion between piston 50 and piston bush 40, the head of piston 50
Cambered surface, the inner surface of cylinder 20, piston bush 40 pilot hole between two cavity volumes being formed gradually change, 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
The difference of pump assembly and embodiment one in embodiment two is: the structure of upper wearing ring 70 and lower flange 12 is not
Together.
As shown in Figures 4 to 7, upper wearing ring 70 has the 5th limiting groove 71, piston bush towards the surface of piston bush 40
40 upper surface 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.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.
Embodiment three
The difference of pump assembly and embodiment one in embodiment three is: the structure of upper wearing ring 70 and lower flange 12 is not
Together.
As shown in Figs. 8 to 11, upper wearing ring 70 has the 4th extension 72 towards the surface of piston bush 40, and the 4th extends
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
Step surface 44, the 4th extension 72 are protruded into 44 limit stops of step surface in step surface 44, to realize upper wearing ring 70 to piston
Cover the limit of 40 radial directions.
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.
Example IV
The difference of pump assembly and embodiment one in example IV is: upper wearing ring 70, piston bush 40 and lower flange
12 structure is different.
As shown in Figure 12 to Figure 15, 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.
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 16 to Figure 19, pump assembly further includes the structural member positioned at 20 lower section of cylinder, the upper surface of structural member
Limit cooperation is carried out with extension 80 and by extension 80 and piston bush 40, to prevent piston bush 40 from sending out relative to structural member
The displacement of raw radial direction.Wherein, structural member includes lower flange 12 and lower limiting board 13, and lower limiting board 13 is located at cylinder 20 under
Between flange 12, the upper surface of lower limiting board 13 is arranged in extension 80.Specifically, upper and lower flange is used to support shaft 30, under
Limit plate 13 is used to carry out limit stops to the lower end of piston bush 40, prevents piston bush 40 relative to lower flange 12 and lower limiting board
13 occur the displacement of radial direction, and then promote the functional reliability of pump assembly.
As shown in figure 18, the inner surface of 40 lower end of piston bush has a step surface 44, extension 80 protrude into piston bush 40 and
With 44 limit stops of step surface, to prevent the lower end of piston bush 40 from radial direction occurs relative to lower limiting board 13 and lower flange 12
Displacement.
In the other embodiments being not shown in the accompanying drawings, the upper surface of lower flange is arranged in extension.Specifically, laxative remedy
Extension on orchid carries out limit stops to the lower end of piston bush, to prevent the lower end of piston bush relative to lower flange (lower limit
Plate) occur radial direction displacement.Meanwhile the upper end of piston bush is by upper flange limited support, so that piston bush is upper and lower
Both ends are limited support, and piston bush and piston or cylinder recurring structure is avoided to interfere and influence the normal operation of pump assembly,
Promote the operational reliability and working performance of pump assembly.
Embodiment six
Pump assembly in embodiment six is from the difference of embodiment five: the structure of piston bush 40 is different.
As shown in Figure 20 to Figure 22, the lower end surface of piston bush 40 has the 6th limiting groove 45, and extension 80 protrudes into the 6th
In limiting groove 45 and with 45 limit stops of the 6th limiting groove.Specifically, in pump assembly operational process, lower limiting board 13
Extension 80 protrude into the 6th limiting groove 45 of piston bush 40, to realize lower limiting board 13 to the limit of 40 lower end of piston bush
Position, support.Meanwhile the upper end of piston bush 40 is by upper 70 limit stops of wearing ring, and then guarantees the upper and lower end quilt of piston bush 40
Limited support avoids piston bush 40 and piston 50 or 20 recurring structure of cylinder from interfering and influence the normal operation of pump assembly, mentions
Rise the operational reliability of pump assembly.
Embodiment seven
Pump assembly in embodiment seven is from the difference of embodiment one: the structure of pump assembly is different.
As shown in Figure 23 to Figure 25, 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.Wherein, the surface towards lower wearing ring 60 of piston bush 40 has retention bead
43, retention bead 43 protrudes into the centre bore of lower wearing ring 60, and limits and cooperate with the inner surface of the centre bore of lower wearing ring 60.
In this way, lower wearing ring 60 is rotatably arranged in cylinder 20, and lower wearing ring 60 limits only the lower end of piston bush 40
Gear.Meanwhile the upper end of piston bush 40 is by upper 70 limited support of wearing ring, so that the upper/lower terminal of piston bush 40 is limited
Position support avoids piston bush 40 and piston 50 or 20 recurring structure of cylinder from interfering and influence the normal operation of pump assembly, is promoted
The operational reliability and working performance of pump assembly.
Specifically, retention bead 43 protrudes into the centre bore of lower wearing ring 60, the outer surface of retention bead 43 and lower anti-attrition
The centre bore hole wall limit stops of ring 60, to realize lower wearing ring 60 to the limit stops of retention bead 43.The knot of above structure
Structure is simple, easy to accomplish.
Embodiment eight
Pump assembly in embodiment eight is from the difference of embodiment seven: the structure of lower wearing ring 60 is different.
As shown in Figure 26 to Figure 29, 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 nine
Pump assembly in embodiment nine is from the difference of embodiment eight: the structure of lower wearing ring 60 is different.
As shown in Figure 30 to Figure 33, 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 inner surface tool of piston bush 40
There is step surface 44, the 5th extension 62 is protruded into 44 limit stops of step surface in step surface 44, to realize lower 60 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 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 step surface 44 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.
Embodiment ten
Pump assembly in embodiment ten is from the difference of embodiment seven: the structure of piston bush 40 is different.
As shown in Figure 34 to Figure 37, the surface towards piston bush 40 of lower wearing ring 60 has the 5th extension 62, piston
The lower end surface of set 40 has the 6th limiting groove 45, and the 5th extension 62 protrudes into the 6th limiting groove 45 and recessed with the 6th limit
45 limit stops of slot.In this way, the 5th extension 62 protrudes into the 6th limiting groove 45, so that the structure of pump assembly is more
It is compact.Meanwhile the structure of above structure is simple, it is 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 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 upper end of piston bush is limited by upper wearing ring, supports, and then prevents piston bush from existing
Occur movement in the radial direction in operational process, guarantee piston bush can normal rotation, solve prior art middle pump body group
The piston bush of part easily occurs eccentric rotary, influences the problem of pump assembly working efficiency, promotes 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 (18)
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) limits cooperation between the upper surface and the upper wearing ring (70) of the piston bush (40),
To prevent the piston bush (40) relative to the displacement of the upper flange (11) generation radial direction.
2. pump assembly according to claim 1, 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.
3. pump assembly according to claim 1, 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.
4. pump assembly according to claim 1, 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).
5. pump assembly according to claim 1, 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.
6. pump assembly according to any one of claim 1 to 5, 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.
7. pump assembly according to claim 6, which is characterized in that the structural member is lower flange (12).
8. pump assembly according to claim 6, 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).
9. pump assembly according to claim 7 or 8, 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).
10. pump assembly according to claim 6, which is characterized in that the lower end surface of the piston bush (40) has the 6th
Limiting groove (45), the extension (80) protrude into the 6th limiting groove (45) and with the 6th limiting groove (45)
Limit stops.
11. pump assembly according to any one of claim 1 to 5, 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).
12. pump assembly according to claim 11, 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).
13. pump assembly according to claim 11, 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.
14. pump assembly according to claim 11, 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).
15. pump assembly according to claim 11, 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.
16. 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,
And the shaft (30) is coaxially disposed with the upper flange (11) and the lower flange (12).
17. a kind of fluid machinery, which is characterized in that including pump assembly described in any one of claims 1 to 16.
18. a kind of heat exchange equipment, which is characterized in that including the fluid machinery described in claim 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143074.0U CN208564963U (en) | 2018-07-18 | 2018-07-18 | Pump assembly, fluid machinery and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821143074.0U CN208564963U (en) | 2018-07-18 | 2018-07-18 | Pump assembly, fluid machinery and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208564963U true CN208564963U (en) | 2019-03-01 |
Family
ID=65446646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821143074.0U Active CN208564963U (en) | 2018-07-18 | 2018-07-18 | Pump assembly, fluid machinery and heat exchange equipment |
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| Country | Link |
|---|---|
| CN (1) | CN208564963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799107A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
-
2018
- 2018-07-18 CN CN201821143074.0U patent/CN208564963U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799107A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
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