CN209637957U - Shaft end constraint structure for compressor and compressor - Google Patents
Shaft end constraint structure for compressor and compressor Download PDFInfo
- Publication number
- CN209637957U CN209637957U CN201822213690.5U CN201822213690U CN209637957U CN 209637957 U CN209637957 U CN 209637957U CN 201822213690 U CN201822213690 U CN 201822213690U CN 209637957 U CN209637957 U CN 209637957U
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- China
- Prior art keywords
- compressor
- crankshaft
- coupling part
- auxiliary section
- shaft end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000008878 coupling Effects 0.000 claims description 56
- 238000010168 coupling process Methods 0.000 claims description 56
- 238000005859 coupling reaction Methods 0.000 claims description 56
- 230000000452 restraining effect Effects 0.000 claims description 26
- 230000003139 buffering effect Effects 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 10
- 241000826860 Trapezium Species 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model provides a shaft end restraint structure and compressor for compressor relates to compressor technical field, has solved the technical problem that the bent axle of the compressor that exists among the prior art can't realize radial and axial restraint. The shaft end constraint structure comprises a shell connecting part, a crankshaft and a crankshaft matching part, wherein the shell connecting part is connected with the crankshaft matching part; the shell connecting part is fixedly arranged on the inner wall of the shell of the compressor; the end of the crankshaft far away from the compressor cylinder is of a conical structure, and a conical hole in clearance fit with the end of the crankshaft far away from the compressor cylinder is arranged in the crankshaft matching portion. The utility model is used for support the bent axle of compressor in order to realize axial and radial restraint to the bent axle head.
Description
Technical field
The utility model relates to Compressor Technology field, more particularly, to a kind of shaft end restraining structure for compressor and
Compressor.
Background technique
In the related art, the rotary shaft (crankshaft 2) at rotor assembly center only has support in one end close to pump assembly,
The other end (free end of crankshaft) is formed as cantilever design, as shown in Figure 1, conventional crankshaft 2 prolongs the length of its axis direction very
Long, this cantilever beam structure is influenced by crankshaft eccentric, can generate certain swing, in simple terms be exactly that amount of deflection is bigger, by force
Degree not enough, so having deformation, causes compressor reliability to decline, and so as to cause a series of problem, will cause shafting mill
Damage forms mechanical noise；It will cause rotor airgap and form pressure fluctuation, form Refrigerant noise；The compressor of this structure is being transported
During turning, since rotor is caused rotor assembly to have rotation disequilibrium, assembly by electromagnet pull effect, design production error
Size positions error etc., rotor swing cause magnetic field unstable, cause electromagnetic noise.This problem has become obstruction compression
The key of machine quality-improving is the technical bottleneck for needing to capture.
Applicants have discovered that in the prior art, there are following technical problems:
The crankshaft of compressor in the prior art cannot achieve radial and axial constraint, is easy to produce biggish amount of deflection and becomes
Shape influences the reliability of compressor.
Utility model content
The purpose of this utility model is to provide a kind of shaft end restraining structure and compressor for compressor, solve existing
There is the technical issues of crankshaft of compressor present in technology cannot achieve radial and axial constraint.It is provided by the utility model all
Many technical effects elaboration as detailed below that optimal technical scheme in more technical solutions can be generated.
To achieve the above object, the utility model provides following technical scheme:
A kind of shaft end restraining structure for compressor provided by the utility model, including housing coupling part, crankshaft and
Crankshaft auxiliary section, in which: the housing coupling part is connected with the crankshaft auxiliary section；The housing coupling part is fixed at
On the inner wall of compressor housing；One end on the crankshaft far from compresser cylinder is pyramidal structure, in the crankshaft auxiliary section
Equipped with the bellmouth with one end clearance fit on the crankshaft far from compressor inside cylinder.
Preferably, the housing coupling part is the ring structure to match with the compressor housing inner circle, the crankshaft
Auxiliary section is matched with the centre bore of the housing coupling part.
Preferably, the support construction for supporting the crankshaft auxiliary section, the support knot are provided on the housing coupling part
Structure is fixed on the inner wall of the centre bore of the housing coupling part and is located at close to the side of motor, the support construction to
Close to the centre bore axis direction horizontal extension.
Preferably, oil storage tank, compressor fortune are provided on the end face of the motor away from compressor of the crankshaft auxiliary section
Lubricating oil when turning in the oil storage tank can flow into the gap between the crankshaft and the crankshaft auxiliary section.
Preferably, the housing coupling part is mounted on the compressor housing by way of welding, hot jacket or cold set
On inner wall.
Preferably, far from one end, the housing coupling part and the crankshaft auxiliary section of compresser cylinder on the crankshaft
It is surface-treated.
Preferably, the surface treatment includes phosphorating treatment, Nitrizing Treatment or molybdenumization processing.
Preferably, it is connected between the housing coupling part and the crankshaft auxiliary section by buffering ring, and the buffering
It is interference fit between ring and the housing coupling part, between the buffering ring and the crankshaft auxiliary section.
Preferably, the buffering ring is made of flexible material.
Preferably, the buffering ring includes the first breeze way and the second breeze way along crankshaft length direction setting,
The upper surface of second breeze way and the end face away from motor in compressor of the housing coupling part are flush, and described second
The lower end surface of breeze way is connected with first breeze way, second breeze way along the crankshaft radial direction thickness from
The direction of second breeze way lower end surface to upper surface is gradually reduced.
Preferably, the shape in the section of first breeze way is rectangle, the shape in the section of second breeze way
For right-angled trapezium, the bottom close to the rectangular long side and the right-angled trapezium of second breeze way coincides,
The oblique waist of the right-angled trapezium of first breeze way and second breeze way is interference fitted with the crankshaft auxiliary section.
Preferably, the shaft end restraining structure further includes pressing plate, and the pressing plate is located at the housing coupling part and the song
On axis auxiliary section in the compressor on the end face of motor and the pressing plate is detachably connected with the housing coupling part.
Preferably, it is provided with the first mounting hole on the pressing plate, the second mounting hole, institute are provided on the housing coupling part
State pressing plate first mounting hole and second mounting hole passed through by connector and the housing coupling part formed it is described can
Dismantling connection.
A kind of compressor, which is characterized in that including the shaft end restraining structure for compressor.
Shaft end restraining structure provided by the utility model for compressor, including housing coupling part, crankshaft and crankshaft
Auxiliary section, wherein housing coupling part is connected with crankshaft auxiliary section；Housing coupling part is fixed at the inner wall of compressor housing
On；One end on crankshaft far from compresser cylinder is pyramidal structure, be equipped in crankshaft auxiliary section in compressor separate on crankshaft
The bellmouth of one end clearance fit of cylinder.The pyramidal structure of the crankshaft of the utility model and the bellmouth phase on crankshaft auxiliary section
The constraint axially and radially of crankshaft end may be implemented in cooperation, and crankshaft cantilever beam structure more in the prior art reduces song
The deflection deformation of axis so as to reduce abrasion and the mechanical noise of crankshaft, and enhances the reliability of compressor, in addition,
Reduce since crankshaft is swung, also reduces the pressure fluctuation of rotor clearance, reduce Refrigerant noise.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic cross-sectional view of compressor in the prior art；
Fig. 2 is the schematic cross-sectional view of compressor provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of shaft end restraining structure provided by the embodiment of the utility model；
Fig. 4 is the assembling section of housing coupling part provided by the embodiment of the utility model Yu crankshaft auxiliary section；
Fig. 5 is the top view of housing coupling part provided by the embodiment of the utility model Yu crankshaft auxiliary section；
Fig. 6 is the schematic cross-section of buffering ring provided by the embodiment of the utility model.
1- housing coupling part in figure；2- crankshaft；3- crankshaft auxiliary section；31- bellmouth；4- supporting mechanism；5- oil storage tank；6-
Buffering ring；The first breeze way of 61-；The second breeze way of 62-；7- pressing plate；8- connector；9- motor；10- compressor housing.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
- Fig. 6 referring to fig. 2, the utility model provide a kind of shaft end restraining structure for compressor, including shell connection
Portion 1, crankshaft 2 and crankshaft auxiliary section 3, in which: housing coupling part 1 is connected with crankshaft auxiliary section 3；Housing coupling part 1 is fixed
It is arranged on the inner wall of compressor housing 10；One end on crankshaft 2 far from compresser cylinder is pyramidal structure, crankshaft auxiliary section 3
The interior bellmouth 31 being equipped with one end clearance fit on crankshaft 2 far from compressor inside cylinder guarantees that crankshaft 2 can be in bellmouth 31
Interior rotation forms sliding pair between crankshaft 2 and bellmouth 31, forms the constraint to crankshaft 2 when crankshaft 2 rotates.This is practical
The pyramidal structure of novel crankshaft 2 matches the free end (song for being used to support crankshaft 2 with the bellmouth 31 on crankshaft auxiliary section 3
Far from one end of compresser cylinder on axis 2), the constraint axially and radially of 2 end of crankshaft may be implemented, for 2 two, crankshaft
Reliability on direction (axially and radially) is very good, and 2 cantilever beam structure of crankshaft more in the prior art reduces crankshaft 2
Deflection deformation so as to reduce abrasion and the mechanical noise of crankshaft 2, and enhances the reliability of compressor, further, since
Crankshaft 2, which is swung, to be reduced, and is also reduced the pressure fluctuation of rotor clearance, is reduced Refrigerant noise.In addition, the crankshaft of the utility model
The design of bellmouth 31 in 2 pyramidal structure and crankshaft auxiliary section 3 is also convenient for realization when crankshaft 2 and the installation of crankshaft auxiliary section 3
The centering of the two, designs certain fit-up gap between crankshaft 2 and crankshaft auxiliary section 3, guarantee crankshaft 2 feel relieved in
In the case of will not be contacted with support ring, can reduce frictional dissipation in this way.Since crankshaft 2 is pyramidal structure, shaft end constraint
Structure is mounted on the upper end (far from one end of compresser cylinder on crankshaft 2) of crankshaft 2, therefore the linear velocity of its rotation is smaller, can
To avoid Fast Wearing, reliability is preferable.It is practical since crankshaft 2 is pyramidal structure, certain radial direction may be implemented
Adjust certralizing ability.
As the utility model embodiment, optionally embodiment, housing coupling part 1 are and 10 inner circle phase of compressor housing
Matched ring structure offers the through-hole that refrigerant passes through on housing coupling part 1, and through-hole is circumferentially-spaced along housing coupling part 1
Compressor air-discharging is convenient in distribution, and crankshaft auxiliary section 3 is matched with the centre bore of housing coupling part 1, therefore can guarantee that shell connects
The essentially concentric of socket part 1 and compressor housing 10.The support construction 4 of support crankshaft auxiliary section 3 is provided on housing coupling part 1,
Support construction 4 is fixed on the inner wall of the centre bore of housing coupling part 1 and is located at close to the side of motor 9, support construction 4
Towards the direction horizontal extension close to centre bore axis, wherein support construction 4 can be ring structure, and crankshaft auxiliary section 3 is located at
The upper surface of support construction 4.Housing coupling part 1 is mounted on the inner wall of compressor housing 10 by way of welding, hot jacket or cold set
On, guarantee the fastening strength of housing coupling part 1 and compressor housing 10.Optionally, housing coupling part 1 and crankshaft auxiliary section 3 can
To use one of cast iron, copper alloy, aluminium alloy, graphite, powdered metallurgical material, mild steel, low-alloy steel or multiple material
It is made, the different material of flexible choice can also be manufactured according to actual needs, to guarantee housing coupling part 1 and crankshaft cooperation
Portion 3 has excellent performance.
As the utility model embodiment optionally embodiment, the end of the motor 9 away from compressor of crankshaft auxiliary section 3
It is provided with oil storage tank 5 on face, lubricating oil when compressor operation in oil storage tank 5 can flow between crankshaft 2 and crankshaft auxiliary section 3
In gap, sliding pair is lubricated.
As the utility model embodiment optionally embodiment, one end, shell on crankshaft 2 far from compresser cylinder connect
Socket part 1 and crankshaft auxiliary section 3 are surface-treated, wherein surface treatment includes phosphorating treatment, Nitrizing Treatment or molybdenumization processing
Deng the wearability of enhancing crankshaft 2, housing coupling part 1 and crankshaft auxiliary section 3.
As the utility model embodiment optionally embodiment, by slow between housing coupling part 1 and crankshaft auxiliary section 3
It rushes ring 6 to be connected, and is interference fit between buffering ring 6 and housing coupling part 1, between buffering ring 6 and crankshaft auxiliary section 3,
Wherein, buffering ring 6 is made of flexible material, which can be silica gel or other materials with the similar silica gel characteristic
Material can form buffer function to the deflection deformation of crankshaft 2, and can correct crankshaft 2 a little because buffering ring 6 itself is softer
The centering relationship of the shaft end restraining structure of end.Specifically, buffering ring 6 includes the first buffering along the setting of 2 length direction of crankshaft
Section 61 and the second breeze way 62, the upper surface of the second breeze way 62 and the end face away from motor 9 in compressor of housing coupling part 1
It is flush, the lower end surface of the second breeze way 62 is connected with the first breeze way 61, and the second breeze way 62 is along 2 radial direction of crankshaft
The direction of thickness from the second breeze way 62 lower end surface to upper surface is gradually reduced；The cross sectional shape of first breeze way 61 is rectangular
Shape, the cross sectional shape of the second breeze way 62 is right-angled trapezium, close to the rectangular long side and right-angled trapezium of the second breeze way 62
Bottom coincide, the first breeze way 61 and the second breeze way 62 are interference fitted with crankshaft auxiliary section 3, particularly second
The oblique waist of the right-angled trapezium of breeze way 62 and crankshaft auxiliary section 3 are interference fitted, so that the cross sectional shape of buffering ring 6 is generally polygon
Shape.First breeze way 61 is to be interference fitted position with crankshaft auxiliary section 3, can both buffer the impact of 2 deflection deformation bring of crankshaft
Power, and flexible buffer resigning may be implemented, it is destroyed caused by avoiding stress from concentrating；When crankshaft 2 deforms larger, the second breeze way
62 are equivalent to the thickness (along the thickness of 2 length direction of crankshaft) for having thickeied buffering ring 6, enhance the intensity of buffering ring 6, Ke Yiti
For bigger support force, the swing of crankshaft 2 is constrained.
In order to avoid buffering ring 6 and about 3 crankshaft auxiliary section jump or fall off, shaft end provided by the utility model is influenced
It is set on the end face of motor 9 in compressor on the intensity and reliability of restraining structure, housing coupling part 1 and crankshaft auxiliary section 3
Pressing plate 7 is set, pressing plate 7 is located at and pressing plate 7 is detachably connected with housing coupling part 1, specifically, being provided with the first peace on pressing plate 7
Hole is filled, the second mounting hole is provided on housing coupling part 1, pressing plate 7 passes through the first mounting hole and the second mounting hole by connector 8
It is detachably connected with the formation of housing coupling part 1, as shown in figure 4, crankshaft auxiliary section 3 and buffering ring 6 are located at the lower section of pressing plate 7.
In addition, the utility model additionally provides a kind of compressor, as shown in Fig. 2, including compressor housing 10, motor 9, gas
Cylinder and the above-mentioned shaft end restraining structure for compressor, motor 9 and cylinder are located in compressor housing 10, and cylinder is located at motor
9 side, shaft end restraining structure are located at the other side of motor 9 and cooperate with crankshaft 2.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
Anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation or replace
It changes, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with claim
Subject to protection scope.
Claims (14)
1. a kind of shaft end restraining structure for compressor, which is characterized in that including housing coupling part (1), crankshaft (2) and song
Axis auxiliary section (3), in which:
The housing coupling part (1) is connected with the crankshaft auxiliary section (3)；
The housing coupling part (1) is fixed on the inner wall of compressor housing (10)；
One end on the crankshaft (2) far from compresser cylinder is pyramidal structure, be equipped in the crankshaft auxiliary section (3) with it is described
The bellmouth (31) of one end clearance fit on crankshaft (2) far from compressor inside cylinder.
2. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that the housing coupling part
It (1) is the ring structure to match with the compressor housing (10) inner circle, the crankshaft auxiliary section (3) connect with the shell
The centre bore in portion (1) matches.
3. the shaft end restraining structure according to claim 2 for compressor, which is characterized in that the housing coupling part
(1) support construction (4) for supporting the crankshaft auxiliary section (3) is provided on, the support construction (4) is fixed at the shell
On the inner wall of the centre bore of body interconnecting piece (1) and it is located at close to the side of motor (9), the support construction (4) is towards close to institute
State the direction horizontal extension of centre bore axis.
4. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that the crankshaft auxiliary section
(3) it is provided with oil storage tank (5) on the end face of the motor (9) away from compressor, in when compressor operation oil storage tank (5)
Lubricating oil can flow into the gap between the crankshaft (2) and the crankshaft auxiliary section (3).
5. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that the housing coupling part
(1) it is mounted on the inner wall of the compressor housing (10) by way of welding, hot jacket or cold set.
6. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that remote on the crankshaft (2)
It is surface-treated from one end of compresser cylinder, the housing coupling part (1) and the crankshaft auxiliary section (3).
7. the shaft end restraining structure according to claim 6 for compressor, which is characterized in that the surface treatment includes
Phosphorating treatment, Nitrizing Treatment or molybdenumization processing.
8. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that the housing coupling part
(1) it is connected between the crankshaft auxiliary section (3) by buffering ring (6), and the buffering ring (6) and the housing coupling part
It (1) is interference fit between, between the buffering ring (6) and the crankshaft auxiliary section (3).
9. the shaft end restraining structure according to claim 8 for compressor, which is characterized in that the buffering ring (6) by
Flexible material is made.
10. the shaft end restraining structure for compressor according to claim 8 or claim 9, which is characterized in that the buffering ring
It (6) include the first breeze way (61) and the second breeze way (62) being arranged along the crankshaft (2) length direction, second buffering
The upper surface of section (62) and the end face away from motor (9) in compressor of the housing coupling part (1) are flush, and described second is slow
The lower end surface for rushing section (62) is connected with first breeze way (61), and second breeze way (62) is along the crankshaft (2) diameter
It is gradually reduced to the direction of thickness from the second breeze way (62) lower end surface to the upper surface in direction.
11. the shaft end restraining structure according to claim 10 for compressor, which is characterized in that first breeze way
(61) cross sectional shape is rectangle, and the cross sectional shape of second breeze way (62) is right-angled trapezium, slow close to described second
The bottom for rushing the rectangular long side and the right-angled trapezium of section (62) coincides, first breeze way (61) and institute
The oblique waist for stating the right-angled trapezium of the second breeze way (62) is interference fitted with the crankshaft auxiliary section (3).
12. the shaft end restraining structure according to claim 1 for compressor, which is characterized in that the shaft end about binding
Structure further includes pressing plate (7), and the pressing plate (7) is located on the housing coupling part (1) and the crankshaft auxiliary section (3) away from compression
In machine on the end face of motor (9) and the pressing plate (7) is detachably connected with the housing coupling part (1).
13. the shaft end restraining structure according to claim 12 for compressor, which is characterized in that on the pressing plate (7)
It is provided with the first mounting hole, the second mounting hole is provided on the housing coupling part (1), the pressing plate (7) passes through connector (8)
It is detachably connected across first mounting hole and second mounting hole with described in the housing coupling part (1) formation.
14. a kind of compressor, which is characterized in that about including the described in any item shaft ends for compressor of claim 1~13
Binding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213690.5U CN209637957U (en) | 2018-12-24 | 2018-12-24 | Shaft end constraint structure for compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213690.5U CN209637957U (en) | 2018-12-24 | 2018-12-24 | Shaft end constraint structure for compressor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637957U true CN209637957U (en) | 2019-11-15 |
Family
ID=68476036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822213690.5U Active CN209637957U (en) | 2018-12-24 | 2018-12-24 | Shaft end constraint structure for compressor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637957U (en) |
-
2018
- 2018-12-24 CN CN201822213690.5U patent/CN209637957U/en active Active
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