CN109356883A - Impeller assembly and compressor provided with same - Google Patents
Impeller assembly and compressor provided with same Download PDFInfo
- Publication number
- CN109356883A CN109356883A CN201811543432.1A CN201811543432A CN109356883A CN 109356883 A CN109356883 A CN 109356883A CN 201811543432 A CN201811543432 A CN 201811543432A CN 109356883 A CN109356883 A CN 109356883A
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- impeller
- face
- center hole
- hold
- impeller assembly
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- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 17
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000007704 transition Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an impeller assembly and a compressor provided with the same, wherein the impeller assembly comprises: the impeller is provided with a front end face and a rear end face which are oppositely arranged in the direction of the central axis of the impeller, and the impeller is provided with an impeller central hole which is communicated with the front end face and the rear end face; one end of the driving shaft is inserted into the central hole of the impeller from the rear end face, and the end of the driving shaft inserted into the central hole of the impeller is provided with a central hole of the driving shaft; one end of the compression gasket is inserted into the central hole of the impeller from the front end face, and the other end of the compression gasket abuts against the front end face; the locking piece comprises a locking head and a locking rod connected with one end of the locking head, the locking rod penetrates through the pressing gasket and is inserted into the central hole of the driving shaft, and the locking head abuts against the pressing gasket. The impeller assembly is convenient to disassemble and assemble, and meanwhile reliable positioning and locking are achieved, so that the disassembling and assembling process of the compressor with the impeller assembly is simplified, and the operation reliability of the compressor is improved.
Description
Technical field
The present invention relates to compression set fields, more particularly to a kind of impeller assembly and equipped with its compressor.
Background technique
Centrifugal compressor is a kind of rotary machine equipment for generating pressure difference by high revolving speed to do work, usually
Running speed between 5000RPM-50000RPM.At high speed, the intensity of rotary axis part, positioning and locking pair
The operation of compressor has vital influence.And impeller assumes responsibility for producing as most important component in rotary axis part
For raw centrifugal force with the effect of compressed gas, the mode of positioning and locking is increasingly important for the operation of compressor.
Currently, common impeller positioning and locking mode includes:
One, it is fixed by key and locking nut.As shown in Figure 1, the rear end face of impeller hub is bonded with the shaft shoulder of drive shaft
And realize the axially position of impeller, the radial positioning of the periphery cooperation realization impeller of the centre bore and drive shaft of impeller hub,
The power that impeller and drive shaft are keyed and realize drive shaft to impeller simultaneously transmits.Locking nut is sheathed on drive shaft and supports
In the front end face of impeller hub, to play axial locking effect.Using the fixed impeller of the positioning and locking mode, there is processing
Advantage at low cost, convenient for disassembly and assembly.But at the same time, the front end of drive shaft is stretched out longer, causes shafting amount of deflection to become larger, impeller exists
Phenomena such as larger shake and abnormal labyrinth seal friction are easy to produce in high speed rotation.And the keyway root of drive shaft and impeller
There are biggish stress concentrations, and weaken the intensity of drive shaft and impeller, and the concentricity of impeller and drive shaft is poor.In addition,
The drive shaft for stretching out the front end face of impeller influences the distribution of the gas at impeller inlet, affects the aeroperformance of impeller.
Two, it is fixed by locking nut.As shown in Fig. 2, drive shaft is inserted in the centre bore of impeller, locking nut is passed through
The front end face of impeller is inserted in drive shaft.Using the fixed impeller of the positioning and locking mode, have processing cost low, convenient for disassembly and assembly
The advantages of.But at the same time, in impeller after being dismounted for multiple times, the mating surface friction of the front end face and locking nut of impeller is bright
It is aobvious and there are apparent burrs, and since locking nut lacks reliable positioning, locking nut is deposited in assembling process
It causes impeller that part occurs in rotary course so as to cause impeller extrusion deformation in slight inclination and beats, and locking screw
There are sharp transition between the female and air inlet of impeller, the noise control that is unfavorable in the runnability and operational process of impeller.
Three, locking nut is locked by way of hydraulic tensioning.As shown in figure 3, drive shaft is directly arranged in impeller, locking
Nut is directly sleeved in drive shaft with impeller locking, without structures such as set keys.Using the fixed leaf of the positioning and locking mode
Wheel, torque are generated by stiction, have the advantages that no stress concentration and wear problem, but at the same time, due to needing
The stiction wanted is larger, therefore generallys use on the driving shaft plus specific hydraulic tool, by hydraulic tool to driving
Axis applies biggish axial force and stretches drive shaft, and locks locking nut while stretching drive shaft, removes after being repeated several times
Hydraulic device can produce biggish axial force since locking nut hinders the recoverable force of drive shaft, which can
Enough stiction is generated on rubbing surface with torque needed for providing wheel rotation, while locks locking nut reliably.
And installation method in this way is needed by special hydraulic device, therefore assembly efficiency is very low, maintenance difficult.
In conclusion impeller is difficult to reach reliable positioning, locking while convenient for disassembly and assembly at present, to be difficult in letter
The operational reliability of compressor is improved while changing the dismounting process of compressor.
Summary of the invention
Based on this, it is necessary to aiming at the problem that impeller is difficult to reach reliable positioning while convenient for disassembly and assembly with locking,
The reliable impeller assembly of positioning and locking and the compressor equipped with it while providing a kind of convenient for disassembly and assembly.
A kind of impeller assembly, the impeller assembly include:
Impeller has the front end face and rear end face being oppositely arranged in the central axial direction of the impeller, the impeller
Offer the impeller center hole for being connected to the front end face and the rear end face；
One end of drive shaft, the drive shaft is inserted in the impeller center hole from the rear end face, and the drive shaft is inserted
One end set on the impeller center hole offers shaft center hole；
One end of compress gasket, the compress gasket is inserted in the impeller center hole, the compression from the front end face
The other end of gasket is held in the front end face；And
Locking member, the locking member include the check lock lever of locking head and the described locking head one end of connection, and the check lock lever is worn
It crosses the compress gasket and is inserted in the shaft center hole, the locking head is held in the compress gasket.
Impeller in an assembling process, is installed on drive shaft one end by hot cover process first, to leaf by above-mentioned impeller assembly
Compress gasket is installed after wheel is cooling, then fastens locking member according to regulation torque, the disassembly process of impeller is then above-mentioned group
The direction operation of dress process.It can be seen that the disassembly process of impeller assembly is simple and convenient, disassembly efficiency with higher.Moreover,
Impeller is not passed completely through by drive shaft since drive shaft and locking member are inserted in impeller center hole from the both ends of impeller respectively
Centre bore, therefore the length of drive shaft is shorter, to reduce the flexible deformation occurred in high-speed rotation, and then reduces
The bounce of impeller.In addition, locking member realizes the axially position of impeller by the front end face that compress gasket compresses impeller, thus
The front end face that locking member directly contacted and wore impeller with impeller is avoided, and compress gasket and impeller cooperation realize impeller
Radial positioning, limit the deformation of impeller.Reliably determine in this way, above-mentioned impeller assembly while convenient for disassembly and assembly, realizes
Position and locking, to simplify the dismounting process of the compressor equipped with the impeller assembly, improve the operational reliability of compressor.
The impeller center hole includes that the first interconnected linkage section is connect with second in one of the embodiments,
Section, first linkage section are connected to the rear end face away from one end of second linkage section, and second linkage section deviates from institute
The one end for stating the first linkage section is connected to the front end face；The aperture of first linkage section is greater than the hole of second linkage section
Diameter, one end of the drive shaft are limited in first linkage section, and one end of the compress gasket is limited in second connection
Section.
In one of the embodiments, the hole wall of first linkage section offer from the front end face extend to it is described after
First keyway of end face, the periphery of the drive shaft offer and matched second keyway of first keyway；The impeller
Component further includes connecting key, and the connecting key is limited in the accommodating chamber that first keyway and the second keyway are collectively formed.
The shaft center hole includes setting internal thread threaded connection section, the lock in one of the embodiments,
Tight bar includes being equipped with externally threaded threaded joints, and the threaded joints are threadedly coupled with the threaded connection section.
The shaft center hole further includes the positioning for being connected to the threaded connection section in one of the embodiments,
Section, the check lock lever include the positioning region for being connected to the threaded joints, the positioning section and at least partly described positioning region
Clearance fit.
The compress gasket including the first compressed part and is connected to first compressed part one in one of the embodiments,
The outer diameter of second compressed part at end, second compressed part is less than first compressed part, and second compressed part is inserted in institute
Impeller center hole is stated, the end face that first compressed part connects second compressed part one end is held in the front end face.
The compress gasket offers the first hold-down apertures and is connected to first hold-down apertures in one of the embodiments,
The second hold-down apertures, first hold-down apertures one end is connected to the end of first compressed part far from second compressed part side
Face, second hold-down apertures are connected to first hold-down apertures and the end of second compressed part far from first compressed part side
Face, the aperture of second hold-down apertures are less than the aperture of first hold-down apertures, and first hold-down apertures and described second compress
Step surface is formed between hole, the check lock lever passes through first hold-down apertures, and the locking head is held in the step surface.
A side surface shape of the compress gasket and the prominent front end face of the locking member in one of the embodiments,
At the pneumatic face of guidance air-flow flowing.
The pneumatic face is to the curved surface far from the rear end face direction protrusion in one of the embodiments,.
A kind of compressor, including above-mentioned impeller assembly.
Detailed description of the invention
Fig. 1 is the schematic diagram of scheme one in background technique；
Fig. 2 is the schematic diagram of scheme two in background technique；
Fig. 3 is the schematic diagram of scheme three in background technique；
Fig. 4 is the schematic diagram of the impeller assembly of one embodiment of the invention；
Fig. 5 is the front view of impeller assembly shown in Fig. 4；
Fig. 6 is the schematic diagram of the impeller of impeller assembly shown in Fig. 4；
Fig. 7 is the schematic diagram of the drive shaft of impeller assembly shown in Fig. 4；
Fig. 8 is the schematic diagram of the compress gasket of impeller assembly shown in Fig. 4；
Fig. 9 is the front view of compress gasket shown in Fig. 8；
Figure 10 is the schematic diagram of the locking member of impeller assembly shown in Fig. 4；
Figure 11 is the front view of locking member shown in Fig. 10.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figures 4 and 5, a kind of centrifugal compressor (not shown) of one embodiment of the invention, including for mentioning
The impeller assembly 100 of high gas pressure.Impeller assembly 100 includes impeller 10, drive shaft 30, compress gasket 50 and locking member
70, impeller 10 is installed in drive shaft 30 by compress gasket 50 and locking member 70, and impeller 10 can follow drive shaft 30 to revolve at a high speed
Turn to improve gas pressure.
Impeller 10 has the front end face 123 being oppositely arranged in the central axial direction of impeller 10 and rear end face 125 (as schemed
Shown in 6), impeller 10, which follows the rotation of drive shaft 30 to generate centrifugal force, makes air-flow from 123 1 side of front end face to 10 internal flow of impeller.
The center of impeller 10 offers the impeller center hole 121 of connection front end face 123 and rear end face 125.One end of drive shaft 30 is after
End face 125 is inserted in impeller center hole 121, and one end that drive shaft 30 is inserted in impeller center hole 121 offers shaft center
Hole 34.One end of compress gasket 50 is inserted in impeller center hole 121 from front end face 123, and the other end of compress gasket 50 is held in
Front end face 123.Locking member 70 includes locking head 72 and the check lock lever 74 for connecting 72 one end of locking head, and check lock lever 74 passes through clamping pad
Piece 50 is inserted in shaft center hole 34, and locking head 72 is held in compress gasket 50.
Impeller 10 in an assembling process, is installed on drive shaft 30 1 by hot cover process first by above-mentioned impeller assembly 100
Compress gasket 50 is installed after impeller 10 is cooling in end, then fastens locking member 70, the disassembly of impeller 10 according to regulation torque
Process is then the direction operation of above-mentioned assembling process.It can be seen that the disassembly process of impeller assembly 100 is simple and convenient, have compared with
High disassembly efficiency.Moreover, because drive shaft 30 and locking member 70 are inserted in impeller center hole 121 from the both ends of impeller 10 respectively
And impeller center hole 121 is not passed completely through by drive shaft 30, therefore the length of drive shaft 30 is shorter, it is revolved to reduce high speed
The flexible deformation occurred during turning, and then reduce the bounce of impeller 10.In addition, locking member 70 is compressed by compress gasket 50
The front end face 123 of impeller 10 and the axially position for realizing impeller 10, directly contact so as to avoid locking member 70 with impeller 10
And the front end face 123 of impeller 10 is worn, and compress gasket 50 and impeller 10 cooperate the radial positioning for realizing impeller 10, limitation
The deformation of impeller 10.In this way, above-mentioned impeller assembly 100 while convenient for disassembly and assembly, realizes reliable positioning and locking, from
And the dismounting process of the compressor equipped with the impeller assembly 100 is simplified, improve the operational reliability of compressor.
As shown in Fig. 4 and Fig. 6, specifically in some embodiments, impeller 10 is including wheel hub 12 and circumferentially surrounds wheel hub 12
Blade 14, front end face 123 and rear end face 125 are formed in 12 both ends of wheel hub, the central axis and impeller 10 in impeller center hole 121
Central axis be overlapped.Impeller center hole 121 includes interconnected the first linkage section 1212 and the second linkage section 1214, and first
Linkage section 1212 is connected to the rear end face 125 of wheel hub 12, and the second linkage section 1214 is connected to the front end face 123 of wheel hub 12, and first connects
The aperture for connecing section 1212 is greater than the aperture of the second linkage section 1214, and the length of the first linkage section 1212 in the axial direction is also much larger than the
The length of two linkage sections 1214 in the axial direction.
In one embodiment, the hole wall of the first linkage section 1212, which is also provided with, extends to rear end from front end face 123 along axial direction
First keyway 1216 in face 125, the first keyway 1216 is used to accommodate the connecting key cooperated with drive shaft 30, to realize drive shaft
30 to impeller 10 torque transmit.Specifically in one embodiment, the quantity of the first keyway 1216 is two, two the first keyways
1216 with the line of 10 central point of impeller be in 180 °.It is appreciated that the quantity of the first keyway 1216 is unlimited, can set as needed
It sets.
As shown in Fig. 4 and Fig. 7, one end of drive shaft 30 is inserted in the impeller center hole 121 of impeller 10, and and impeller center
121 transition fit of hole or interference fit.The periphery that drive shaft 30 is inserted in 121 one end of impeller center hole offers and the first key
Matched second keyway 32 of slot 1216, impeller assembly 100 further include connecting key 90, connecting key 90 be limited in the first keyway 1216 with
In the accommodating chamber that second keyway 32 is collectively formed.In this way, one end of drive shaft 30 passes through periphery and connecting key 90 and impeller 10
Mating, impeller 10 can follow drive shaft 30 to rotate synchronously.
In some embodiments, the shaft center hole 34 of drive shaft 30 includes sequentially connected changeover portion in the axial direction
341, positioning section 343 and threaded connection section 345, drive shaft 30 are mutually coupled by shaft center hole 34 and locking member 70.
Wherein, changeover portion 341 is connected to one end end face that drive shaft 30 is inserted in impeller center hole 121, positioning section 343
Being connected to one end of front end face 123 of the linkage section far from impeller 10, (i.e. linkage section is inserted in impeller center hole far from drive shaft 30
The side of one end end face in 121), threaded connection section 345 is connected to positioning section 343 far from 341 one end of changeover portion.Wherein, spiral shell
Line linkage section 345 is equipped with internal screw thread with a part mating of the check lock lever 74 with locking member 70, the inner wall smooth of positioning section 343 with
It is coupled with a part of the check lock lever 74 of locking member 70, the hole of changeover portion 341 connects 343 one end of positioning section to remotely located without leave
343 one end of section are gradually increased.Specifically in one embodiment, the axial length of positioning section 343 is the 0.5- in the aperture of positioning section 343
1 times, to meet processing, assembly and the requirement of connection effect.
As shown in Fig. 4, Fig. 8 and Fig. 9, compress gasket 50 is including the first compressed part 52 and is connected to 52 one end of the first compressed part
The second compressed part 54, the outer diameter of the second compressed part 54 is less than the first compressed part 52.Wherein, the second compressed part 54 is inserted in impeller
Second linkage section 1214 of centre bore 121 and with 1214 clearance fit of the second linkage section and realize that the radial direction of compress gasket 50 is fixed
Position, and since the first keyway 1216 opened up on impeller 10 results in the asking there are a degree of Stress non-homogeneity of impeller 10
Topic, therefore the second compressed part 54 has the function of limiting wheel hub 12 in impeller 10 and deforms.First compressed part 52 connection second compresses
The end face of 54 one end of portion is held in the front end face 123 of wheel hub 12, to realize the axially position of compress gasket 50, avoids locking
Part 70 is directly contacted with the front end face 123 of impeller 10.
The second hold-down apertures 58 that compress gasket 50 is provided in the axial direction with the first hold-down apertures 56 and is connected to the first hold-down apertures 56,
First hold-down apertures, 56 one end is connected to the first end face of the compressed part 52 far from 54 side of the second compressed part, the second hold-down apertures 58 connection the
One hold-down apertures 56 and the second end face of the compressed part 54 far from 52 side of the first compressed part.The aperture of second hold-down apertures 58 is less than first
The aperture of hold-down apertures 56 forms step surface between first hold-down apertures 56 and the second hold-down apertures 58.
As shown in Fig. 4, Figure 10 and Figure 11, the locking head 72 of locking member 70 includes the first head 721 and the second head 723,
Second head 723 is connected to the outer diameter on 721 one end of the first head and the second head 723 less than the first head 721.Wherein, second
Head 723 is inserted into the first hold-down apertures 56 of compress gasket 50, and the second head 723 is supported far from a side end face on the first head 721
It is held in step surface, so that compress gasket 50 to be pressed in the front end face 123 of wheel hub 12.First head 721 connects the second head 723
The end face of side is held in the end face that compress gasket 50 connects the first hold-down apertures 56, and the first head 721 is far from the second head 723 1
The surface of the end face of side and prominent 123 side of front end face of compress gasket 50 is collectively formed to far from 125 direction of rear end face protrusion
Curved surface, to form the pneumatic face that guidance air-flow smoothly flows into impeller 10 to the radial direction of impeller 10, to effectively reduce
Noise that gas shock locking member 70 generates, and the angle of impeller 10 is allowed airflow into closer to being related in impeller 10 is optimal
Inlet air flow angle, to improve the aeroperformance of impeller 10.
In one embodiment, the first head 721 of locking head 72 offers multiple edges far from 723 1 side surface of the second head
Circumferentially spaced locking hole 7232, locking hole 7232 is for cooperating specific tooling locking locking member 70.It is appreciated that locking
The locking mode of part 70 is without being limited thereto, in other embodiments, locking hole 7232 can also be replaced with positioned at the first head 721
Center Hexagon hole with matching criteria force moment tools.
74 self-locking head 72 of check lock lever is equipped with sequentially connected transition part 741, positioning region 743 and screw thread in the axial direction
Interconnecting piece 745.Wherein, the first hold-down apertures 56 that transition part 741 passes through compress gasket 50 protrude into second company in impeller center hole 121
It connects in section 1214.The changeover portion 341 that positioning region 743 passes through shaft center hole 34 protrude into positioning section 343 and with positioning section 343
Clearance fit, and the outer diameter of positioning region 743 is less than the aperture of changeover portion 341 and is arranged with the hole wall interval of changeover portion 341.Screw thread
Interconnecting piece 745 is equipped with external screw thread, and threaded joints 745 are inserted in the threaded connection section 345 in shaft center hole 34 and and spiral shell
Line linkage section 345 is threadedly coupled.In this way, being threadedly coupled in threaded joints 745 with threaded connection section 345 and realizing axially position
While, positioning region 743 and 343 clearance fit of positioning section realize radial positioning of the locking member 70 in drive shaft 30, eliminate
The positioning accuracy that thread pitch present in being threadedly engaged brings locking member 70 not enough causes locking member 70 is opposite to drive
Axis 30 tilts, and then the phenomenon that make 10 compressive deformation of impeller.
Above-mentioned impeller assembly 100 and the compressor equipped with it, drive shaft 30 and locking member 70 are respectively protruding into impeller from both ends
In 10 impeller center hole 121, therefore the prior art side of the front end face 123 of impeller 10 is passed through and protruded compared to drive shaft 30
Case effectively shortens the length of drive shaft 30, reduces the flexible deformation of drive shaft 30, to reduce the bounce of impeller 10
It is abnormal, it solves in compressor operational process since impeller 10 is beated excessive the problems such as causing labyrinth seal friction damage.Moreover,
The mutual cooperation of drive shaft 30, compress gasket 50 and locking member 70 improves the reliability of positioning of impeller 10, and impeller 10 is secured
Ground is lock onto drive shaft 30 to follow drive shaft 30 to rotate, while being dismounted for multiple times will not cause to damage to impeller 10.Into one
Step ground, the assembly precision of the impeller assembly 100 is only dependent upon the machining accuracy of part, so as to avoid artificial rigging error band
The influence come, improves the assembly consistency of impeller assembly 100 and the structural reliability of impeller assembly 100.In addition, impeller 10
Air-flow at front end face 123 can be inside the impeller 10 gently entered under the guidance of compress gasket 50 and locking member 70, to mention
The high pneumatic property of impeller 10, the noise for generating gas shock impeller 10 can control to very low level.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of impeller assembly (100), which is characterized in that the impeller assembly (100) includes:
Impeller (10) has the front end face (123) and rear end face being oppositely arranged in the central axial direction of the impeller (10)
(125), the impeller (10) offers the impeller center hole for being connected to the front end face (123) and the rear end face (125)
(121)；
One end of drive shaft (30), the drive shaft (30) is inserted in the impeller center hole from the rear end face (125)
(121), one end that the drive shaft (30) is inserted in the impeller center hole (121) offers shaft center hole (34)；
One end of compress gasket (50), the compress gasket (50) is inserted in the impeller center hole from the front end face (123)
(121), the other end of the compress gasket (50) is held in the front end face (123)；And
Locking member (70), the locking member (70) include the check lock lever of locking head (72) and described locking head (72) one end of connection
(74), the check lock lever (74) passes through the compress gasket (50) and is inserted in the shaft center hole (34), the locking head
(72) compress gasket (50) are held in.
2. impeller assembly (100) according to claim 1, which is characterized in that the impeller center hole (121) includes mutual
The first linkage section (1212) of connection and the second linkage section (1214), first linkage section (1212) is away from second connection
One end of section (1214) is connected to the rear end face (125), and second linkage section (1214) deviates from first linkage section
(1212) one end is connected to the front end face (123)；The aperture of first linkage section (1212) is greater than second linkage section
(1214) aperture, one end of the drive shaft (30) are limited in first linkage section (1212), the compress gasket (50)
One end be limited in second linkage section (1214).
3. impeller assembly (100) according to claim 2, which is characterized in that the hole wall of first linkage section (1212)
The first keyway (1216) that the rear end face (125) is extended to from the front end face (123) is offered, the drive shaft (30)
Periphery offers and matched second keyway (32) of first keyway (1216)；The impeller assembly (100) further includes connecting
It connects key (90), the accommodating chamber that the connecting key (90) is limited in first keyway (1216) and the second keyway (32) are collectively formed
It is interior.
4. impeller assembly (100) according to claim 1, which is characterized in that the shaft center hole (34) includes setting
Internal thread threaded connection section (345), the check lock lever (74) includes being equipped with externally threaded threaded joints (745), described
Threaded joints (745) are threadedly coupled with the threaded connection section (345).
5. impeller assembly (100) according to claim 4, which is characterized in that the shaft center hole (34) further includes
It is connected to the positioning section (343) of the threaded connection section (345), the check lock lever (74) includes being connected to the threaded joints
(745) positioning region (743), the positioning section (343) and at least partly described positioning region (743) clearance fit.
6. impeller assembly (100) according to claim 1, which is characterized in that the compress gasket (50) includes the first pressure
Tight portion (52) and the second compressed part (54) for being connected to described first compressed part (52) one end, second compressed part (54) it is outer
Diameter is less than first compressed part (52), and second compressed part (54) is inserted in the impeller center hole (121), and described first
The end face that compressed part (52) connects described second compressed part (54) one end is held in the front end face (123).
7. impeller assembly (100) according to claim 6, which is characterized in that the compress gasket (50) offers first
Hold-down apertures (56) and the second hold-down apertures (58) being connected to first hold-down apertures (56), described first hold-down apertures (56) one end connect
Lead to end face of first compressed part (52) far from the second compressed part (54) side, second hold-down apertures (58) are connected to institute
State the end face of the first hold-down apertures (56) and second compressed part (54) far from the first compressed part (52) side, described second
The aperture of hold-down apertures (58) is less than the aperture of first hold-down apertures (56), and first hold-down apertures (56) and described second compress
Step surface is formed between hole (58), the check lock lever (74) passes through first hold-down apertures (56), and the locking head (72) supports
In the step surface.
8. impeller assembly (100) according to claim 1, which is characterized in that the compress gasket (50) and the locking
One side surface of the prominent front end face (123) of part (70) forms the pneumatic face of guidance air-flow flowing.
9. impeller assembly (100) according to claim 8, which is characterized in that the pneumatic face is to far from the rear end
The curved surface of face (125) direction protrusion.
10. a kind of compressor, which is characterized in that including impeller assembly as described in any one of claims 1-9 (100).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543432.1A CN109356883A (en) | 2018-12-17 | 2018-12-17 | Impeller assembly and compressor provided with same |
| PCT/CN2019/113019 WO2020125198A1 (en) | 2018-12-17 | 2019-10-24 | Impeller component and compressor having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543432.1A CN109356883A (en) | 2018-12-17 | 2018-12-17 | Impeller assembly and compressor provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356883A true CN109356883A (en) | 2019-02-19 |
Family
ID=65328921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543432.1A Pending CN109356883A (en) | 2018-12-17 | 2018-12-17 | Impeller assembly and compressor provided with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109356883A (en) |
| WO (1) | WO2020125198A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125198A1 (en) * | 2018-12-17 | 2020-06-25 | 珠海格力电器股份有限公司 | Impeller component and compressor having same |
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|---|---|---|---|---|
| CN204344514U (en) * | 2014-12-10 | 2015-05-20 | 南方泵业股份有限公司 | A kind of impeller locking mechanism |
| CN206129715U (en) * | 2016-11-09 | 2017-04-26 | 烟台荏原空调设备有限公司 | Centrifugal compressor and guiding device thereof |
| CN107366637A (en) * | 2016-05-11 | 2017-11-21 | 襄阳新金开泵业有限公司 | A kind of impeller locking device of lime pump |
| CN209294129U (en) * | 2018-12-17 | 2019-08-23 | 珠海格力电器股份有限公司 | Impeller assembly and compressor provided with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941506A (en) * | 1974-09-05 | 1976-03-02 | Carrier Corporation | Rotor assembly |
| US5163816A (en) * | 1991-07-12 | 1992-11-17 | General Motors Corporation | Wheel lock, centering and drive means and turbocharger impeller combination |
| CN201593522U (en) * | 2009-11-18 | 2010-09-29 | 泽尼特泵业（苏州）有限公司 | Connection structure of pump shaft and impeller on sewage pump |
| CN206190591U (en) * | 2016-10-20 | 2017-05-24 | 贵州开磷集团股份有限公司 | Locking device of chemical pump impeller |
| CN207229453U (en) * | 2017-08-23 | 2018-04-13 | 江苏英特泵阀制造有限公司 | A kind of centrifugal pump with self-locking device |
| CN109356883A (en) * | 2018-12-17 | 2019-02-19 | 珠海格力电器股份有限公司 | Impeller assembly and compressor provided with same |
-
2018
- 2018-12-17 CN CN201811543432.1A patent/CN109356883A/en active Pending
-
2019
- 2019-10-24 WO PCT/CN2019/113019 patent/WO2020125198A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204344514U (en) * | 2014-12-10 | 2015-05-20 | 南方泵业股份有限公司 | A kind of impeller locking mechanism |
| CN107366637A (en) * | 2016-05-11 | 2017-11-21 | 襄阳新金开泵业有限公司 | A kind of impeller locking device of lime pump |
| CN206129715U (en) * | 2016-11-09 | 2017-04-26 | 烟台荏原空调设备有限公司 | Centrifugal compressor and guiding device thereof |
| CN209294129U (en) * | 2018-12-17 | 2019-08-23 | 珠海格力电器股份有限公司 | Impeller assembly and compressor provided with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125198A1 (en) * | 2018-12-17 | 2020-06-25 | 珠海格力电器股份有限公司 | Impeller component and compressor having same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020125198A1 (en) | 2020-06-25 |
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