CN105201850B - A kind of compressor - Google Patents
A kind of compressor Download PDFInfo
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- CN105201850B CN105201850B CN201510706178.2A CN201510706178A CN105201850B CN 105201850 B CN105201850 B CN 105201850B CN 201510706178 A CN201510706178 A CN 201510706178A CN 105201850 B CN105201850 B CN 105201850B
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- impeller
- blade
- bent axle
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Abstract
The present invention provides a kind of compressor, including bent axle (7) and motor rotor component, it also includes the impeller (4) or blade that are installed to the bent axle (7) top, the impeller (4) or the blade can be driven and rotate therewith by the rotation of bent axle (7), impeller (4) or blade can produce the axial force with the gas force opposite direction suffered by bent axle and motor rotor component on bent axle (7) when rotated, according to the compressor of the present invention, crankshaft rotor component play can effectively suppressed, reduce compressor mechanical loss and grate flow channel loss, reduce oil extraction rate, improve reliability and service life.
Description
Technical field
The invention belongs to Compressor Technology field, and in particular to a kind of compressor.
Background technology
Rolling rotor compressor in the market is in practical work process, due to the intermittence exhaust of exhaust valve plate
(generally each cycle is vented once), can cause the upper and lower cavity of rotor the pressure differential fluctuated occur, the pressure differential acts on
On bent axle and motor rotor component, the gas force of fluctuation is formed, so as to cause bent axle and motor rotor component axle occur and alter phenomenon.
Altered if with rotor assembly axle occurs for bent axle, easily cause the upper and lower flange thrust surface wear of the pump housing, significantly increase compressor
Noise and energy consumption, while the service life of compressor is greatly lowered.
Mainly there is the following two kinds for the way to solve the problem in the market：
Method one：Motor stator and rotor difference in height is set, makes bent axle with rotor assembly by downward by the magnetic pull of motor
Electromagnetic force, so as to suppress the play of bent axle and rotor assembly, as illustrated in fig. 1 and 2, wherein Fq-magnetic pull, Fa-gas force,
G-bent axle and motor rotor component gravity：
Method two：Method disclosed in patent No. CN 202441642U, sets bearing on main shaft, by the side of bearing positioning
Formula limits the play of bent axle and motor rotor component, as shown in Figure 3：
Though both the above method can solve the problems, such as that axle is altered, there is also following problem：
A) it is spacing using motor magnetic pull, motor stator, rotor height need to be set poor, cause electric efficiency to reduce；
B) spacing using bearing, it need to make bearing installation, fixed kit, and cost is higher；The peace of bearing simultaneously
Dress with alignment quality it is more difficult control and it is cumbersome, the program also introduces the friction of bearing, causes mechanical loss to increase；
Because electric efficiency reduction be present in the technical problem for solving to prevent axle from altering in existing above-mentioned compressor；And/or
Holistic cost is higher；Complicated, cumbersome, and also big etc. technical problem of mechanical loss is installed simultaneously, therefore present invention research is set
Count out a kind of compressor.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome compressor of the prior art solving to prevent what axle from altering
Electric efficiency simultaneously also be present reduces and/or the defects of holistic cost is higher etc., so as to provide a kind of compressor.
The present invention provides a kind of compressor, including bent axle and motor rotor component, and it also includes being installed on the bent axle
The impeller or blade in portion, the impeller or the blade can be driven by the rotation of bent axle and rotate therewith, impeller or blade
The axial force with the gas force opposite direction suffered by bent axle and motor rotor component can be produced on bent axle when rotated.
The impeller has impeller axle and is arranged at least two impeller blade of the impeller axle radial outside.
The blade is at least two, is along the circumferential direction uniformly arranged on the radial outside of the bent axle.
Preferably, the impeller blade or the blade have inclination angle, turn axial force caused by rotation, bent axle and motor
The gravity of sub-component meets equation below：Ft+G >=Fa max, wherein Ft are axial force caused by impeller or blade, and G is bent axle
With the gravity suffered by motor rotor component, Fa is the gas force suffered by crankshaft motor rotor assembly, and Fa max are the gas force
Maximum.
Preferably, the impeller blade is releasably attached to the radial outside of the impeller axle.
Preferably, the impeller axle includes the different multi-diameter shaft of two sections of external diameters, and the impeller blade is arranged on the portion of being relatively large in diameter
On the external diameter divided, boss is formed relative to compared with large outer-diametric portion compared with small outer-diametric portion, the top of bent axle 7 is provided with and the boss
The detent to match.
Preferably, the impeller axle bottom center has hole, and bent axle top center is provided with what is matched with the hole
It is raised.
Preferably, using the fixed form being cold-pressed after interference fit when being engaged between the impeller axle and bent axle；Or
Person adds the fixed form of screw lock again after coordinating using gap.
Preferably, the lower end of impeller axle 41 is provided with the fool proof location structure being mutually matched with the upper end of bent axle 7.
Preferably, the gas " taking out " of rotor lower end is arrived into rotor upper end during impeller or the blade rotation.
Preferably, gas mixture during impeller or the blade rotation by pump housing discharge inside compressor is thrown to compressor
In inner walls and end cap.
Preferably, the compressor is rotor-type compressor.
Compressor provided by the invention has the advantages that：
1. according to the compressor of the present invention, it can effectively suppress crankshaft rotor component play, while can also effectively prevent
Electric efficiency reduces, and is unlikely to so that holistic cost is higher so that holistic cost is relatively low；
2. according to the compressor of the present invention, its installation is simple and convenient to operate；
3. according to the compressor of the present invention, without causing the wave of power in order to take into account bad working environments setting compared with margin
Take, so as to effectively reduce mechanical loss；
4. according to the compressor of the present invention, the pressure differential at motor both ends can be also effectively reduced, so as to reduce crankshaft rotor group
The intensity of part play, while can also reduce the passages losses of compressor pump exhaust；
5. according to the compressor of the present invention, the oil extraction rate of compressor can be also effectively reduced, so as to ensure that compressor efficiently may be used
The operation leaned on.
Brief description of the drawings
Compressor drum component axially loaded schematic diagram in Fig. 1 art methods one；
Compressor in Fig. 2 art methods one sets electric machine rotor difference to obtain the simplified schematic diagram of magnetic pull；
Fig. 3 is the simplified schematic diagram for the compressor that the anti-axle of bearing in art methods two alters scheme；
Fig. 4 is the structural representation of the compressor of the present invention；
Fig. 5 is compressor drum component axially loaded schematic diagram in the present invention；
The compressor internal gas that Fig. 6 is the present invention flows to schematic diagram；
Fig. 7 is the Oil-gas Separation schematic diagram inside the compressor of the present invention.
Reference is expressed as in figure：
1-compressor pump, 2-motor stator, 3-rotor, 4-impeller, 41-impeller axle, 42-impeller blade,
5-compressor housing, 6-knockout, 7-bent axle.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to protection scope of the present invention.
As shown in figure 4, the present invention provides a kind of compressor (being preferably rotor-type compressor) for preventing axle from altering, including song
Axle 7 and motor rotor component, it also includes the impeller for being installed to the top of bent axle 7 (present invention is preferably to be installed to its top)
4 or blade (not shown), the impeller 4 or blade can be driven and rotate therewith by the rotation of bent axle 7, impeller 4 or
Blade can produce the axial force with the gas force opposite direction suffered by bent axle and motor rotor component on bent axle 7 when rotated.
The axial force is (because compressor is normally at motor with gas force direction in a preferred embodiment of the invention
Below component, due to the effect of compressor compresses, gas becomes gases at high pressure, therefore lower section can there is high pressure gas for electric machine assembly
Body, its pressure ratio electric machine assembly top pressure is high, therefore the pressure differential of the gas is applied to electric machine assembly and shown as to group of motors
Part produces upward gas force) axial force of opposite (i.e. downward), due to the operating principle of aerofoil fan, inclined fan blade
When rotated, there can be blowing function, the power for making wind direction fore blow is that impeller or blade apply, then impeller or blade can also be received
To reverse active force, i.e., it can produce reverse axial force, the direction of axial force can be by adjusting the impeller blade or blade of impeller
Incline direction or the rotation direction (or rotation direction) of adjustment impeller blade or blade adjust, revolved using impeller (or blade)
The principle with the reverse axial force of gas force is produced when turning, is effectively realized axle occurs compressor crank shaft motor rotor component
Alter the suppression of phenomenon.
According to the compressor that axle alters of preventing of the present invention, can while crankshaft rotor component play is effectively suppressed,
Due to without setting as the motor stator in art methods one, rotor height are poor, so that electric efficiency is high, i.e., can also
Effectively prevent electric efficiency from reducing；And due to without set art methods two in bearing arrangement, and impeller and
Blade can mold making, therefore also be not so that holistic cost is higher, so that holistic cost is relatively low, installation is simple, behaviour
Facilitate；3rd, suppress the play of crankshaft rotor component using axial force caused by impeller rotation by the present invention, and due to leaf
Take turns the restraint altered to axle strengthens as axle alters the enhancing of intensity, therefore also without more unnecessary in order to take into account bad working environments setting
Measure and cause the waste of power, so as to effectively reduce mechanical loss.
Impeller 4 has impeller axle 41 and is arranged at least two impeller blade 42 of the impeller axle radial outside, preferably 3
Impeller blade, so can be on the basis of normal rotation be ensured further such that cost-effectively reducing.
The blade is at least two, is along the circumferential direction uniformly arranged on the radial outside of the bent axle 7.It is preferably removable
3 blades are installed with unloading.So can be on the basis of normal rotation be ensured further such that cost-effectively reducing.Blade with
The fixed form being cold-pressed after interference fit can be used when being engaged between bent axle 7；Or add screw after coordinating using gap again
The fixed form of locking.
As shown in Figure 5, it is preferable that the impeller blade or the blade have inclination angle (i.e. impeller blade are each other or blade
There is the inclination angle of certain angle each other, be not generally flush with or vertical, similar to the blade tilt of electric fan), make rotation
The gravity of caused axial force, bent axle and motor rotor component meets equation below：Ft+G >=Fa max, wherein Ft are impeller
Or axial force caused by blade, G are the gravity suffered by bent axle and motor rotor component, Fa is suffered by crankshaft motor rotor assembly
Gas force, Fa max are the maximum of the gas force., can be by downward axial force of impeller by setting rational blade tilt
With the maximum made a concerted effort to be arranged to not less than upward gas force of gravity, so as to effectively suppress crankshaft motor rotor set
The phenomenon that axle is altered occurs when by gas force for part, farthest ensures that the phenomenon that axle is altered does not occur.
Compressor rotary speed is higher, and the gas force Fa that crankshaft rotor component is subject to is bigger, and it is bigger that axle alters intensity, and now blade
Also (due to the principle of aerofoil fan, fan turns faster to caused axial force F t, and wind is bigger, wind for increase therewith at high speed
The reaction force for being applied to blade is also bigger), i.e., the restraint that impeller is altered to axle in the program alter the enhancing of intensity with axle and
Enhancing, therefore (drawn relative to using motor magnetic without causing the waste of power in order to take into account bad working environments setting compared with margin
Power is come for suppressing the scheme that axle is altered, it is to set magnetic pull size according to worst operating mode is suppressed, i.e., in unskilled labor
In condition, magnetic pull has compared with margin, and this part surplus is acted on bent axle, causes the waste of power.).
Preferably, the length of the impeller blade 42 or the blade is arranged to one than the inner width of compressor housing 5
Half is smaller, and while the impeller blade 42 or the blade be normally loaded into the compressor housing 5, impeller
Inwall of the end of piece 42 or blade close to compressor housing 5.It can normally be loaded into the compressor in impeller or blade
Housing on the basis of the longer the better as far as possible, so can effectively increase caused axial direction when impeller or blade rotate
Power, axle is prevented to alter the generation of phenomenon to greatest extent.
Preferably, the impeller blade 42 is releasably attached to the radial outside of the impeller axle 41.By dismountable
Impeller blade is fixed to the radial outside of the impeller axle by mounting means, can more facilitate and be installed between impeller blade and impeller axle
And dismounting, improve the efficiency of demolition, installation.
Preferably, when compressor assembles, the impeller axle 41 includes the different multi-diameter shaft of two sections of external diameters, the impeller blade 42
It is arranged on the external diameter of larger diameter portion, boss (not shown), institute is formed relative to compared with large outer-diametric portion compared with small outer-diametric portion
State the top of bent axle 7 and be provided with the detent (not shown) to match with the boss, the boss of the impeller axle 41 is inserted into institute
In the detent for stating bent axle 7, formed and coordinate installation.This is a kind of installation side preferably connected between impeller axle and bent axle
Formula, tight fit between the two is ensure that, realize the purpose rotated by bent axle impeller axle and then impeller piece.
Preferably, the bottom center of impeller axle 41 has hole (not shown), and the top center of bent axle 7 is provided with being somebody's turn to do
The projection (being not shown, preferably the projection is formed by the two-stage step of bent axle) that hole matches, the projection of the bent axle 7 is inserted into
In the hole of the bottom center of impeller axle 41, formed and coordinate installation.This is another preferably between connection impeller axle and bent axle
Mounting means, ensure that tight fit between the two, realize by bent axle impeller axle and then impeller piece revolve
The purpose turned.
Preferably, using the fixed form being cold-pressed after interference fit when being engaged between the impeller axle 41 and bent axle 7；
Or add the fixed form of screw lock after coordinating using gap again.This is two kinds of preferable connections between impeller axle and bent axle
Fixed (fastening) mode, it ensure that impeller axle will not come off from bent axle easily when working operation.
Preferably, using the fixed form being cold-pressed after interference fit when being engaged between the blade and bent axle；Or
Add the fixed form of screw lock after coordinating using gap again.This is two kinds of preferable being connected between blade and bent axle
(fastening) mode, it ensure that blade will not come off from bent axle easily when working operation.
Preferably, the lower end of impeller axle 41 is provided with the fool proof location structure being mutually matched with the upper end of bent axle 7 and (not shown
Go out).The fool proof location structure may be preferred that the structures such as similar key and keyway, while ensureing correctly installation, it is ensured that
Impeller can rotate together with bent axle.
As shown in Figure 6, it is preferable that at work, impeller can be by the gas " taking out " of rotor lower end when rotating for impeller 4
(gas is extracted into impeller upper end, the utilization principle of axial-flow type air-flow from impeller lower end during wheel rotation) arrives rotor upper end,
The speed of compressor internal gas flow is so accelerated, the pressure differential at rotor both ends is reduced, reduces gas force, enter
And reduce the intensity of crankshaft rotor component play, while also reduce the passages losses (compressor pump of compressor pump exhaust
After body exhaust, air-flow will pass through the runner of electric machine rotor, because runner is smaller, process meeting build-up of pressure loss, and use
Gas below motor is extracted into top by this programme by impeller or blade, can be accelerated the fluid velocity of air-flow, then can be dropped
The passages losses of its low exhaust process).
As shown in Figure 7, it is preferable that rotated at a high speed by the rotary blade inside compressor or blade, the impeller blade or
Blade can pass through when rotating by the gas mixture " getting rid of " of pump housing discharge inside compressor to compressor housing inwall and end cap
Rotation enhances the agitaion to compressor inside gas mixture, simultaneously because suction-operated of the housing to oil, Neng Gouyou
Oil-gas Separation is realized to effect, so as to reduce the oil extraction rate of compressor.
Preferably, the compressor is rotor-type compressor.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
On the premise of departing from the technology of the present invention principle, some improvement and modification can also be made, these improvement and modification also should be regarded as this
The protection domain of invention.
Claims (9)
1. a kind of compressor, including bent axle (7) and motor rotor component, it is characterised in that：Also include being installed to the bent axle (7)
The impeller (4) or blade on top, the impeller (4) or blade can be driven by the rotation of bent axle (7) and rotate therewith, impeller
(4) or blade produces the axle with the gas force opposite direction suffered by bent axle and motor rotor component on bent axle (7) when rotated
Xiang Li；
The impeller (4) has impeller axle (41) and is arranged at least two impeller blade (42) of impeller axle (41) radial outside；
The blade is at least two, is along the circumferential direction uniformly arranged on the radial outside of the bent axle (7)；
And：The impeller blade (42) or the blade have inclination angle, make axial force caused by rotation, bent axle and rotor
The gravity of component meets equation below：Ft+G >=Fa max, wherein Ft are axial force caused by impeller (4) or blade, and G is bent axle
With the gravity suffered by motor rotor component, Fa is the gas force suffered by bent axle and motor rotor component, and Fa max are the gas force
Maximum.
2. compressor according to claim 1, it is characterised in that：The impeller blade (42) is releasably attached to the leaf
The radial outside of wheel shaft (41).
3. according to the compressor described in one of claim 1-2, it is characterised in that：The impeller axle (41) includes two sections of external diameters not
Same multi-diameter shaft, the impeller blade (42) are arranged on the external diameter of larger diameter portion, compared with small outer-diametric portion relative to larger outer
Path portion forms boss, and bent axle (7) top is provided with the detent to match with the boss.
4. according to the compressor described in one of claim 1-2, it is characterised in that：Impeller axle (41) bottom center has
Hole, bent axle (7) the top center are provided with the projection to match with the hole.
5. compressor according to claim 3, it is characterised in that：When being engaged between the impeller axle (41) and bent axle (7)
Using the fixed form being cold-pressed after interference fit；Or add the fixed form of screw lock after coordinating using gap again.
6. compressor according to claim 3, it is characterised in that：On impeller axle (41) lower end and the bent axle (7)
End is provided with the fool proof location structure being mutually matched.
7. according to the compressor described in one of claim 1-2, it is characterised in that：By electricity when the impeller (4) or blade rotate
The gas " taking out " of machine rotor lower end arrives rotor upper end.
8. according to the compressor described in one of claim 1-2, it is characterised in that：The impeller (4) or blade will pressures when rotating
The gas mixture of pump housing discharge is thrown on compressor housing (5) inwall and end cap inside contracting machine.
9. according to the compressor described in one of claim 1-2, it is characterised in that：The compressor is rotor-type compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706178.2A CN105201850B (en) | 2015-10-26 | 2015-10-26 | A kind of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706178.2A CN105201850B (en) | 2015-10-26 | 2015-10-26 | A kind of compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201850A CN105201850A (en) | 2015-12-30 |
| CN105201850B true CN105201850B (en) | 2017-12-01 |
Family
ID=54949728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510706178.2A Active CN105201850B (en) | 2015-10-26 | 2015-10-26 | A kind of compressor |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670374A (en) * | 2004-03-15 | 2005-09-21 | 三洋电机株式会社 | Multicylinder rotary compressor and compressing system and refrigerating unit provided with same |
| CN103557163A (en) * | 2013-09-30 | 2014-02-05 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN204140422U (en) * | 2014-08-01 | 2015-02-04 | 安徽美芝精密制造有限公司 | Rotary compressor |
| CN104334884A (en) * | 2012-04-19 | 2015-02-04 | 三菱电机株式会社 | Hermetically sealed compressor and vapor compression refrigeration cycle device with hermetically sealed compressor |
| CN204553225U (en) * | 2015-03-23 | 2015-08-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
| CN205101235U (en) * | 2015-10-26 | 2016-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62199992A (en) * | 1986-02-28 | 1987-09-03 | Hitachi Ltd | Enclosed rotary compressor |
-
2015
- 2015-10-26 CN CN201510706178.2A patent/CN105201850B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670374A (en) * | 2004-03-15 | 2005-09-21 | 三洋电机株式会社 | Multicylinder rotary compressor and compressing system and refrigerating unit provided with same |
| CN104334884A (en) * | 2012-04-19 | 2015-02-04 | 三菱电机株式会社 | Hermetically sealed compressor and vapor compression refrigeration cycle device with hermetically sealed compressor |
| CN103557163A (en) * | 2013-09-30 | 2014-02-05 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN204140422U (en) * | 2014-08-01 | 2015-02-04 | 安徽美芝精密制造有限公司 | Rotary compressor |
| CN204553225U (en) * | 2015-03-23 | 2015-08-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
| CN205101235U (en) * | 2015-10-26 | 2016-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
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| CN105201850A (en) | 2015-12-30 |
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