CN208595057U - Pump assembly, fluid machinery and heat exchange equipment - Google Patents
Pump assembly, fluid machinery and heat exchange equipment Download PDFInfo
- Publication number
- CN208595057U CN208595057U CN201821144903.7U CN201821144903U CN208595057U CN 208595057 U CN208595057 U CN 208595057U CN 201821144903 U CN201821144903 U CN 201821144903U CN 208595057 U CN208595057 U CN 208595057U
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- Prior art keywords
- pump assembly
- shaft
- hole
- cylinder
- lower flange
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- Withdrawn - After Issue
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Abstract
The utility model provides a kind of pump assembly, fluid machinery and heat exchange equipment.Wherein, pump assembly includes: shaft；Cylinder, shaft pass through cylinder；Lower flange is provided with protruding portion, and protruding portion has the through-hole passed through for shaft positioned at the lower section of cylinder on the end face towards cylinder of lower flange.The utility model efficiently solve the problems, such as pump assembly in the prior art shaft easily deformation occurs, influence pump assembly working performance.
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
In the prior art, as shown in Figure 1, the short axle section 11 ' of the shaft 10 ' of pump assembly protrudes into cylinder 20 ' and laxative remedy
The length H1 of orchid 30 ' is codetermined by the height of limit plate 40 ' and lower flange 30 ', causes short axle section 11 ' longer, span is larger.
Under identical stress condition, easily leading to the short axle section 11 ' of shaft 10 ', deformation occurs, leads to short axle section 11 ' and lower flange 30 '
Between contact stress increase, easily the two contact position recurring structure wear, the working performance and structure for influencing pump assembly can
By property.
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 shaft of technology middle pump body component easy the problem of deformation occurs, influence pump assembly working performance.
To achieve the goals above, one aspect according to the present utility model provides a kind of pump assembly, comprising: turns
Axis；Cylinder, shaft pass through cylinder；Lower flange is provided with protrusion on the end face towards cylinder of lower flange positioned at the lower section of cylinder
Portion, and protruding portion has the through-hole passed through for shaft.
Further, protruding portion is round boss, and the outer circle axis of round boss and the outer circle axis coaxle of lower flange are set
It sets, and through-hole is arranged on round boss.
Further, through-hole eccentric setting on round boss, and the outer circle axis of the axis of through-hole and round boss it
Between distance be eccentric distance e.
Further, pump assembly further include: piston bush is pivotally disposed in cylinder, and piston bush has for shaft
The via hole passed through, and protruding portion is stretched in piston bush by via hole；Piston is slidably arranged in piston bush to form capacity
Chamber has preset distance along the axis direction of shaft between protruding portion and piston.
Further, piston bush includes ontology and the undergauge section connecting with ontology, undergauge section be located at ontology and lower flange it
Between, pump assembly further include: limit plate, limit plate are located at the top of lower flange and are set in outside undergauge section, limit plate and ontology
Counter stopper, to be limited to piston bush.
Further, cooperate after there is limit plate center through hole, undergauge section to protrude into center through hole with limit plate, and undergauge
There is predetermined gap A, and predetermined gap A is more than or equal to 0.5mm between section and the hole wall of center through hole.
Further, the roughness Ra value of the hole wall of via hole is less than 0.5mm.
Further, shaft includes sequentially connected long shaft part, sliding section and short axle section, and sliding section is located in piston bush,
Short axle section is threaded through in through-hole.
Further, the side wall of cylinder has gas vent, pump assembly further include: exhaust valve component, exhaust valve component are set
The position set on the outer surface of cylinder and with gas vent is corresponding.
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 shaft, cylinder and lower flange.Wherein, shaft passes through
Cylinder.Lower flange is located at the lower section of cylinder, protruding portion is provided on the end face towards cylinder of lower flange, and protruding portion has confession
The through-hole that shaft passes through.In this way, shaft, which passes through cylinder and part shaft, passes through protruding portion on lower flange, the part shaft and prominent
Portion cooperates out, reduces structural span of the shaft in pump assembly, and preventing the part shaft, deformation occurs, and then prevents due to turning
The axis stress concentration phenomenon that deformation occurs between caused shaft and lower flange, avoids shaft and lower flange from structural wear occur.
In pump assembly operational process, the protruding portion of shaft and lower flange cooperates, and then prevents shaft from deforming, and keeps away
Exempt from the contact stress due to caused by shaft deformation between shaft and lower flange to increase, and then prevents shaft and lower flange from tying
Structure abrasion, extends the service life of pump assembly, promotes the working performance and functional reliability of pump assembly, reduces energy damage
Consumption.
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 cross-sectional view after pump assembly removal upper flange in the prior art；
Fig. 2 shows the cross-sectional views of the embodiment of pump assembly according to the present utility model；
Fig. 3 shows the decomposition texture schematic diagram of the pump assembly in Fig. 2；
Fig. 4 shows the cross-sectional view after the removal upper flange of the pump assembly in Fig. 2；
Fig. 5 shows the schematic perspective view of the lower flange of the pump assembly in Fig. 3；
Fig. 6 shows the top view of the lower flange in Fig. 5；
Fig. 7 shows the cross-sectional view of the lower flange in Fig. 5；
Fig. 8 shows the schematic perspective view of the shaft of the pump assembly in Fig. 3；
Fig. 9 shows the schematic perspective view of the piston bush of the pump assembly in Fig. 3；
Figure 10 shows the schematic perspective view of the limit plate of the pump assembly in Fig. 3；And
Figure 11 shows the working principle diagram of the pump assembly in Fig. 2.
Wherein, the above drawings include the following reference numerals:
10 ', shaft, 11 ', short axle section；20 ', cylinder；30 ', lower flange；40 ', limit plate；10, shaft；11, long shaft part；
12, section is slid；13, short axle section；20, cylinder；21, gas vent；30, lower flange；31, protruding portion；311, through-hole；40, piston bush；
41, via hole；42, ontology；43, undergauge section；50, piston；60, limit plate；61, center through hole；70, exhaust valve component；80, upper method
It is blue.
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.
In order to which easily deformation occurs, influences pump assembly working performance asks for the shaft that solves pump assembly in the prior art
Topic, this application provides a kind of pump assembly, fluid machinery and heat exchange equipments.
As shown in Figures 2 to 4, pump assembly includes shaft 10, cylinder 20 and lower flange 30.Wherein, shaft 10 passes through gas
Cylinder 20.Lower flange 30 is located at the lower section of cylinder 20, lower flange 30 towards being provided with protruding portion 31 on the end face of cylinder 20, and it is prominent
Portion 31 has the through-hole 311 passed through for shaft 10 out.
Using the technical solution of the present embodiment, shaft 10 passes through cylinder 20 and part shaft 10 passes through dashing forward on lower flange 30
Portion 31 out, the part shaft 10 and protruding portion 31 cooperate, and reduce structural span of the shaft 10 in pump assembly, prevent the part
Deformation occurs for shaft 10, and then prevents the stress due to shaft 10 caused by deformation occurs between shaft 10 and lower flange 30 from concentrating
Phenomenon avoids shaft 10 and lower flange 30 from structural wear occur.
In pump assembly operational process, the protruding portion 31 of shaft 10 and lower flange 30 cooperates, and then prevents shaft 10 from sending out
Change shape, avoids the contact stress due to caused by 10 deformation of shaft between shaft 10 and lower flange 30 from increasing, and then anti-rotation stop
Axis 10 and the abrasion of 30 recurring structure of lower flange, extend the service life of pump assembly, promote the working performance and work of pump assembly
Make reliability, reduces energy loss.
As shown in Figures 2 to 4, protruding portion 31 is round boss, the outer circle axis of round boss and the outer circle of lower flange 30
Axis coaxle setting, and through-hole 311 is arranged on round boss.Specifically, protruding portion 31 protrudes into cylinder 20, and shaft 10 passes through
It is pierced by after cylinder 20 and protruding portion 31 from lower flange 30.The protruding portion 31 of round boss shape makes the dress of lower flange 30 Yu cylinder 20
With being more easier, conveniently, and the processing of protruding portion 31 is more easier, is easy, reducing the labor intensity of staff, shorten
Processing is time-consuming, and then reduces the processing cost of pump assembly.
As shown in Figures 5 to 7, the eccentric setting on round boss of through-hole 311, and the axis and round boss of through-hole 311
The distance between outer circle axis be eccentric distance e.Wherein, cylinder 20 and the lower flange 30 are coaxially disposed.Specifically, shaft 10
The protruding portion 31 on lower flange 30 is passed through by through-hole 311, guarantees that shaft 10 can rotate in cylinder 20 and lower flange 30, with
Realize air-breathing, compression and the exhaust event of cylinder 20.Shaft 10 and round boss eccentric setting, to guarantee the bias of pump assembly
Away from guaranteeing the operation stability of pump assembly for e to realize the normal operation of pump assembly.
The axle center in the eccentricity of the middle pump body component center of circle as composed by flange screw hole and axis hole compared with prior art
Distance determines to compare, and in the present embodiment, the eccentricity of pump assembly passes through the outer circle axis of round boss and the axis of through-hole 311
Line determines, simple and reliable.
In the present embodiment, the eccentric distance e for determining pump assembly is set by above structure, so that the control of eccentric distance e
Mode is more easier to guarantee, simple and reliable.
As shown in Figures 2 to 4, pump assembly further includes piston bush 40 and piston 50.Wherein, piston bush 40 is pivotly set
It sets in cylinder 20, piston bush 40 has the via hole 41 passed through for shaft 10, and protruding portion 31 stretches to piston by via hole 41
In set 40.Piston 50 is slidably arranged in piston bush 40 to form capacity chamber, along the axis direction of shaft 10, protruding portion 31 with
There is preset distance between piston 50.In this way, above-mentioned preset distance energy is arranged during piston 50 is run in piston bush 40
It enough prevents recurring structure between piston 50 and protruding portion 31 from interfering, and then improves the structural reliability of pump assembly, guarantee the pump housing
Component can operate normally.The structure of above structure is simple, is easily worked.
As shown in figure 9, piston bush 40 is located at ontology including ontology 42 and the undergauge section 43 connecting with ontology 42, undergauge section 43
Between 42 and lower flange 30, pump assembly further includes limit plate 60.Wherein, limit plate 60 is located at the top of lower flange 30 and is arranged
Outside undergauge section 43, limit plate 60 and 42 counter stopper of ontology, to be limited to piston bush 40.Specifically, 43 court of undergauge section
Extend to lower flange 30, and is embedded in limit plate 60, the ontology 42 and 60 counter stopper of limit plate of piston bush 40, to prevent from living
Plug sleeve 40 is pierced by out of cylinder 20.The structure of above structure is simple, is easily worked, realizes.
Specifically, undergauge section 43 is cyclic structure, and ontology 42 has a via hole 41 being axially arranged along it, and undergauge section 43 with
Via hole 41 is coaxially disposed, ontology 42 and 60 counter stopper of limit plate, end face and lower flange 30 of the undergauge section 43 towards lower flange 30
Clearance fit.In this way, above-mentioned assembly method, which can be avoided, generates large area friction, reduce between piston bush 40 and lower flange 30
Friction, reduces frictional power loss, improves the working efficiency of pump assembly.
Specifically, it is carried out under the driving of shaft 10 with the rotation of piston 50 after piston bush 40 is arranged in cylinder 20
Rotation.Due to piston 50 on the axis direction of shaft 10 with 60 counter stopper of limit plate and with 30 clearance fit of lower flange, from
And the contact area of piston bush 40 and limit plate 60 or lower flange 30 is effectively reduced, it thereby reduces piston bush 40 and is rotating
The abrasion that generates in the process reduces friction power loss loss, improves the working efficiency of pump assembly.
In the present embodiment, there is the pilot hole for radially penetrating through setting, piston 50, which is slidably arranged in, leads in ontology 42
Into hole to carry out linear reciprocating motion.Since piston 50 is slidably arranged in pilot hole, thus when piston 50 is in pilot hole
When side-to-side movement, the volume of capacity chamber can be made constantly to change, to guarantee the air-breathing of pump assembly, exhaust stability.
In the present embodiment, shaft 10 and 30 eccentric setting of lower flange, cylinder 20 and 10 eccentric setting of shaft and eccentricity
It is fixed as e.Cylinder 20, limit plate 60 and lower flange 30 are arranged concentrically.In this way, the cylinder 20 of aforesaid way installation can guarantee gas
Cylinder 20 and the eccentricity of shaft 10 are fixed, so that piston bush 40 and piston 50 have the characteristics that kinetic stability is good, are mentioned
The working performance of high pump assembly, job stability.
Specifically, cross slides are formed between piston 50, piston bush 40, cylinder 20 and shaft 10, piston 50 is along vertical
It is directly slided in piston bush 40 in the direction of the axis of shaft 10, so that piston 50 slides in piston bush 40 to change capacity
The volume of chamber, then cylinder 20 carries out air-breathing, compression and exhaust event.Above structure makes piston 50 and piston bush 40 in cylinder 20
Interior movement is more stable, continuous, and the vibration of pump assembly has been effectively relieved, and guarantees that the volume variation of capacity chamber has rule
It restrains, reduce clearance volume, to improve the operation stability of pump assembly, and then improve the reliable operation of pump assembly
Property.
As shown in figure 3, piston 50 has the slip hole axially through setting along shaft 10, shaft 10 passes through slip hole,
Piston 50 is under the driving of shaft 10 with the rotation of shaft 10 and simultaneously along the axis direction perpendicular to shaft 10 in piston bush 40
Inside reciprocatingly slide, due to piston 50 moved in a straight line relative to shaft 10 rather than rotary reciprocating motion, thus effectively reduce partially
Heart quality reduces shaft 10 and lateral force that piston 50 is subject to, to reduce the abrasion of piston 50, improve piston 50
Sealing performance.Meanwhile ensure that the operation stability and reliability of pump assembly, and reduce fluid machinery vibration risk,
Simplify the structure of fluid machinery.
Piston 50 in the utility model is cylindrical.Preferably, piston 50 is cylindrical or non-cylindrical.
As shown in figure 3, pump assembly further includes the upper flange 80 positioned at 20 top of cylinder.Wherein, cylinder 20 is located at upper method
Between orchid 80 and lower flange 30, and upper and lower flange is fixedly connected by fastener with cylinder 20.In this way, above-mentioned mounting means makes
The structure for obtaining pump assembly is more compact, prevents the gases did escape in cylinder 20, improves the working efficiency of pump assembly, mention
Rise the working performance of pump assembly.
As shown in Fig. 3, Fig. 4 and Figure 10, after there is limit plate 60 center through hole 61, undergauge section 43 to protrude into center through hole 61
Cooperate with limit plate 60, and there is predetermined gap A, and predetermined gap A is greater than between undergauge section 43 and the hole wall of center through hole 61
Equal to 0.5mm.Specifically, undergauge section 43 stretches in center through hole 61, and limit plate 60 can be protected with the outer surface of cylinder 20
Maintain an equal level neat, so that the appearance of pump assembly is more beautiful, and manufacture easy to process.It is logical with undergauge section 43 in the prior art and center
Gap is smaller between the hole wall in hole 61 compares, in the present embodiment between the center through hole 61 and undergauge section 43 of limit plate 60 exist compared with
Wide arc gap prevents limit plate 60 from contacting with piston bush 40, avoids generating rubbing action therebetween and influencing making for pump assembly
Use the service life.
As shown in figure 9, the roughness Ra value of the hole wall of via hole 41 is less than 0.5mm.In this way, above-mentioned setting can guarantee via hole
There are certain roughness in 41, so that constituting between the hole wall of via hole 41 and the protruding portion 31 of lower flange 30, friction is secondary, and guarantee is lived
Plug sleeve 40 can rotate in cylinder 20.
As shown in Figure 4 and Figure 8, shaft 10 includes sequentially connected long shaft part 11, sliding section 12 and short axle section 13, slides section
12 are located in piston bush 40, and short axle section 13 is threaded through in through-hole 311.In this way, sliding section 12 and piston 50 are cooperatively connected, section is slid
12 are located in through-hole 311, and then reduce the span of the short axle section 13 of shaft 10, shorten the length of short axle section 13, Jin Erfang
Only deformation occurs for short axle section 13, avoids that the stable structure that stress is concentrated and influences the two occurs between short axle section 13 and protruding portion 31
Property, to improve the operational reliability of pump assembly, improve the working efficiency of pump assembly.
Compared with the length H1 of prior art short-and-medium axle section 13, the length H2 of the short axle section 13 in the present embodiment is shorter, has
Conducive to saving production cost.In this way, above-mentioned be provided with the deformation for being conducive to reduce short axle section 13 (shaft 10), prevent from reducing short axle section
The stress of 13 (shafts 10) and lower flange 30 is concentrated, and then improves the abrasion condition of short axle section 13 (shaft 10) and lower flange 30.
As shown in figure 3, the side wall of cylinder 20 has gas vent 21, pump assembly further includes exhaust valve component 70.Wherein, it arranges
Air-valve assembly 70 is arranged on the outer surface of cylinder 20 and corresponding with the position of gas vent 21.In this way, exhaust valve component 70
Setting can be effectively prevented from capacity intracavity gas and largely leak, and ensure that the compression efficiency of capacity chamber.Specifically, it is vented
Valve module 70 includes exhaust valve plate and valve block baffle, and exhaust valve plate blocks gas vent 21, and valve block baffle is stacked on exhaust valve plate,
Gas pressure only at gas vent 21 is greater than the active force of valve block baffle, and the gas in cylinder 20 can be discharged, improve
The functional reliability of pump assembly.
In the present embodiment, the assembling process of pump assembly is as follows: piston 50 is mounted in the pilot hole of piston bush 40, contracting
Diameter section 43 is mounted on limit plate 60, and limit plate 60 is fixedly connected with lower flange 30, while cylinder 20 and the coaxial peace of piston bush 40
Dress, lower flange 30 are fixedly connected with cylinder 20, and the sliding mating surface of shaft 10 and a pair of the slip hole of piston 50 are parallel
Surface engagement installation, the long shaft part 11 of 80 fixed rotating shaft 10 of upper flange, while upper flange 80 is fixedly connected with cylinder, to complete
The assembly of pump assembly.Wherein the sliding section 12 of shaft 10 is located in cylinder 20, and short axle section 13 is located at the protruding portion of lower flange 30
In 31.
As shown in figure 11, pump assembly is run using cross slides principle, wherein piston 50 is used as sliding block, shaft
10 sliding mating surface is as first connecting rod l1, the pilot hole of piston bush 40 is as second connecting rod l2.Pilot hole and sliding mating surface
It is mutually perpendicular to, piston 50 can only be moved back and forth relative to pilot hole, and piston 50 can only be moved back and forth relative to sliding mating surface.It is living
Plug 50 is reduced to after mass center it can be found that its running track is circular motion, which is the axle center O with cylinder 202With shaft 10
Axle center O1Line be diameter circle.
As second connecting rod l2When circling, sliding block can be along second connecting rod l2It moves back and forth；Meanwhile sliding block can edge
First connecting rod l1It moves back and forth.First connecting rod l1With second connecting rod l2Remain vertical, so that sliding block is along first connecting rod l1Back and forth
The direction of motion and sliding block are along second connecting rod l2Vibration-direction is mutually perpendicular to.First connecting rod l1With second connecting rod l2And piston 50
Relative motion relation, formed cross slides principle.
Present invention also provides a kind of fluid machinery (not shown), including above-mentioned pump assembly.Optionally, fluid machinery
For compressor.
In the present embodiment, the operation process of compressor is as follows: motor-driven rotatable shaft 10 rotates, and shaft 10 drives piston 50
Rotation, piston 50 drive piston bush 40 to rotate.In above-mentioned motion process, shaft 10 is rotated around the center of through-hole 311, piston bush
40 rotate around the center of the round boss of lower flange 30, and piston 50 only moves back and forth relative to piston bush 40, piston 50 relative to
Shaft 10 moves back and forth, and two reciprocating motions are mutually perpendicular to.With the reciprocating motion between piston 50 and piston bush 40, piston 50
Head cambered surface, the inner surface of cylinder 20, two cavity volumes formed between the pilot hole of piston bush 40 gradually change, complete
Air-breathing, compression, exhaust process.
Present invention also provides a kind of heat exchange equipment (not shown), including above-mentioned fluid machinery.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
Shaft passes through cylinder and part shaft passes through the protruding portion on lower flange, and the part shaft and protruding portion cooperate, subtract
Structural span of the small shaft in pump assembly, preventing the part shaft, deformation occurs, and then prevents since deformation occurs for shaft
Stress concentration phenomenon between caused shaft and lower flange avoids shaft and lower flange from structural wear occur.
In pump assembly operational process, the protruding portion of shaft and lower flange cooperates, and then prevents shaft from deforming, and keeps away
Exempt from the contact stress due to caused by shaft deformation between shaft and lower flange to increase, and then prevents shaft and lower flange from tying
Structure abrasion, extends the service life of pump assembly, promotes the working performance and functional reliability of pump assembly, reduces energy damage
Consumption.
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 (11)
1. a kind of pump assembly characterized by comprising
Shaft (10)；
Cylinder (20), the shaft (10) pass through the cylinder (20)；
Lower flange (30) is located at the lower section of the cylinder (20), the end face towards the cylinder (20) of the lower flange (30)
On be provided with protruding portion (31), and the protruding portion (31) has the through-hole (311) passed through for the shaft (10).
2. pump assembly according to claim 1, which is characterized in that the protruding portion (31) is round boss, the circle
The outer circle axis of shape boss and the outer circle axis coaxle of the lower flange (30) are arranged, and the through-hole (311) is arranged described
On round boss.
3. pump assembly according to claim 2, which is characterized in that the through-hole (311) is inclined on the round boss
Heart setting, and the distance between outer circle axis of the axis of the through-hole (311) and the round boss is eccentric distance e.
4. pump assembly according to claim 1, which is characterized in that the pump assembly further include:
Piston bush (40) is pivotally disposed in the cylinder (20), and the piston bush (40), which has, supplies the shaft (10)
The via hole (41) passed through, and the protruding portion (31) is stretched in the piston bush (40) by the via hole (41)；
Piston (50) is slidably arranged in the piston bush (40) to form capacity chamber, along the axis side of the shaft (10)
To with preset distance between the protruding portion (31) and the piston (50).
5. pump assembly according to claim 4, which is characterized in that the piston bush (40) include ontology (42) and with institute
State the undergauge section (43) of ontology (42) connection, the undergauge section (43) be located at the ontology (42) and the lower flange (30) it
Between, the pump assembly further include:
Limit plate (60), the limit plate (60) are located at the top of the lower flange (30) and are set in the undergauge section (43)
Outside, the limit plate (60) and the ontology (42) counter stopper, to be limited to the piston bush (40).
6. pump assembly according to claim 5, which is characterized in that the limit plate (60) has center through hole (61),
The undergauge section (43) cooperates after protruding into the center through hole (61) with the limit plate (60), and the undergauge section (43) with
There is predetermined gap A, and the predetermined gap A is more than or equal to 0.5mm between the hole wall of the center through hole (61).
7. pump assembly according to claim 4, which is characterized in that the roughness Ra value of the hole wall of the via hole (41) is small
In 0.5mm.
8. pump assembly according to claim 4, which is characterized in that the shaft (10) includes sequentially connected long shaft part
(11), section (12) and short axle section (13) are slid, the sliding section (12) is located in the piston bush (40), the short axle section (13)
It is threaded through in the through-hole (311).
9. pump assembly according to any one of claim 1 to 8, which is characterized in that the side wall of the cylinder (20) has
There are gas vent (21), the pump assembly further include:
Exhaust valve component (70), the exhaust valve component (70) be arranged on the outer surface of the cylinder (20) and with the exhaust
The position in hole (21) is corresponding.
10. a kind of fluid machinery, which is characterized in that including pump assembly described in any one of claims 1 to 9.
11. a kind of heat exchange equipment, which is characterized in that including fluid machinery described in any one of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144903.7U CN208595057U (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 |
|---|---|---|---|
| CN201821144903.7U CN208595057U (en) | 2018-07-18 | 2018-07-18 | Pump assembly, fluid machinery and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595057U true CN208595057U (en) | 2019-03-12 |
Family
ID=65603333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821144903.7U Withdrawn - After Issue CN208595057U (en) | 2018-07-18 | 2018-07-18 | Pump assembly, fluid machinery and heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799103A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
-
2018
- 2018-07-18 CN CN201821144903.7U patent/CN208595057U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799103A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
| CN108799103B (en) * | 2018-07-18 | 2023-10-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body assembly, fluid machinery and heat exchange equipment |
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