CN205918589U - Helical -lobe compressor and multistage screw drive structure thereof - Google Patents
Helical -lobe compressor and multistage screw drive structure thereof Download PDFInfo
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- CN205918589U CN205918589U CN201620835463.4U CN201620835463U CN205918589U CN 205918589 U CN205918589 U CN 205918589U CN 201620835463 U CN201620835463 U CN 201620835463U CN 205918589 U CN205918589 U CN 205918589U
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Abstract
The utility model discloses a helical -lobe compressor and multistage screw drive structure thereof, multistage screw drive structure includes multistage rotor assembly, the rotor assembly is including the male rotor and the female rotor of mutually supporting, and is multistage a male rotor in the rotor assembly rotates first male rotor (1) be connected, adjacent two -stage for being used for with drive arrangement's drive end in the rotor assembly, preceding one -level male rotor and/or female rotor and back one -level in the rotor assembly gear (3) that all have coaxial setting on the male rotor in the rotor assembly, adjacent two -stage the rotor assembly gear (3) intermeshing. The embodiment of the utility model provides a multistage screw drive structure has effectively reduced the driven whole length of multistage rotor assembly cooperation, has reduced the overall structure of compressor, has effectively improved the compact structure nature of compressor to, the noise and the vibration of the whole operation of compressor have been reduced.
Description
Technical field
This utility model is related to compression device technical field, particularly to a kind of helical-lobe compressor and its multi-stage screw transmission
Structure.
Background technology
With the raising to compressor compresses amount, the application of multi-stage screw compressor is also more and more extensive.
, it is applied to the evaporating temperatures such as freezing and refrigeration, low temperature environment laboratory relatively taking single machine two-stage screw bolt compressor as a example
The big place of low and refrigeration requirement.
At present, single machine two-stage screw bolt compressor has two-stage rotor set, including low-pressure stage male rotor and hiigh pressure stage male rotor.
One end of low-pressure stage male rotor is connected with driving means, and the other end of low-pressure stage male rotor is passed through with one end of hiigh pressure stage male rotor
Shaft coupling connects.Due to two-stage rotor using shaft coupling connection in the form of so that the length of fit of two-stage rotor set longer so that
The overall structure of compressor is long, so that compressor overall operation is made an uproar while the volume of compressor is larger and loosely organized
Sound and vibration are higher.
Therefore, how to improve the structural compactness of compressor, reduce noise and vibration, be that those skilled in the art urgently solves
Problem certainly.
Utility model content
In view of this, this utility model provides a kind of multi-stage screw drive mechanism, to improve the compact conformation of compressor
Property, reduce noise and vibration.The invention also discloses a kind of helical-lobe compressor.
For achieving the above object, the following technical scheme of this utility model offer:
It can be seen from above-mentioned technical scheme that, a kind of multi-stage screw drive mechanism that this utility model provides, including many
Level rotor set, described rotor set includes the male rotor cooperating and female rotor, one of multistage described rotor set male rotor
It is the first male rotor for being connected with the drive end rotation of driving means, in two neighboring described rotor set, described in previous stage
It is respectively provided with, on male rotor in rotor set and/or the male rotor in rotor set described in female rotor and rear stage, the tooth being coaxially disposed
Wheel；
The described gear of two neighboring described rotor set intermeshes.
Preferably, in above-mentioned multi-stage screw drive mechanism, the quantity of described rotor set is two-stage.
Preferably, in above-mentioned multi-stage screw drive mechanism, described gear is located at the end of the rotor of described rotor set.
Preferably, in above-mentioned multi-stage screw drive mechanism, coordinate the rotor of transmission in rotor set described in adjacent two-stage respectively
For power rotor and passive rotor；
The opposite end of described power rotor and described passive rotor is provided with described gear.
Preferably, two female rotor positions in above-mentioned multi-stage screw drive mechanism, with two neighboring described male rotor cooperation
The same side in described male rotor.
Preferably, in above-mentioned multi-stage screw drive mechanism, the outer wall of the rotor of described rotor set has external thread section, institute
State gear and be there is the internal thread hole being matched with described external thread section.
Preferably, in above-mentioned multi-stage screw drive mechanism, also include coordinating with described external thread section, be used for avoiding described tooth
The locking nut that wheel slips.
Preferably, in above-mentioned multi-stage screw drive mechanism, described first male rotor is low-pressure stage male rotor.
This utility model additionally provides a kind of helical-lobe compressor, including compressor housing and in described compression case body
The multi-stage screw drive mechanism in portion, described multi-stage screw drive mechanism is the multi-stage screw drive mechanism as any of the above-described.
Preferably, in above-mentioned helical-lobe compressor, the quantity of described compressor housing is multiple and with described rotor set one by one
Corresponding.
Preferably, in above-mentioned helical-lobe compressor, also include being arranged on described compressor housing, for adjusting described gear
The adjustment hole of position；
Described adjustment hole is correspondingly arranged with described gear.
Preferably, in above-mentioned helical-lobe compressor, described adjustment hole is QI invigorating hole.
The multi-stage screw drive mechanism that this utility model provides, one of multiple male rotors are the first male rotor, first
Male rotor is used for being connected with the drive end rotation of driving means, in order to provide rotatory force to multiple male rotors.Adjacent two-stage turns
The gear of subgroup engages each other.By above-mentioned setting so that the male rotor in multi-stage rotor group all rotates.Because adjacent two-stage turns
Subgroup is engaged by gear and completes to be driven, it is to avoid setting shaft coupling, therefore, the rotor in adjacent two-stage rotor set need not be coaxial
Alignment can also coordinate transmission, effectively reduce the entire length of multi-stage rotor group cooperation transmission, reduce the entirety of compressor
Structure, effectively increases the structural compactness of compressor, and, reduces noise and the vibration of compressor overall operation.
This utility model additionally provides a kind of helical-lobe compressor with above-mentioned multi-stage screw drive mechanism.Due to above-mentioned many
Level screw drive structure has above-mentioned technique effect, and the helical-lobe compressor with above-mentioned multi-stage screw drive mechanism also should have together
The technique effect of sample, here is no longer discussed in detail.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the multi-stage screw drive mechanism that Fig. 1 provides for this utility model embodiment；
The schematic side view of the gear that Fig. 2 provides for this utility model embodiment；
The internal structure schematic diagram of the helical-lobe compressor that Fig. 3 provides for this utility model embodiment；
The schematic side view of the multi-stage screw drive mechanism that Fig. 4 provides for this utility model embodiment.
Specific embodiment
The utility model discloses a kind of multi-stage screw drive mechanism, to improve the structural compactness of compressor, reduction is made an uproar
Sound and vibration.The invention also discloses a kind of helical-lobe compressor.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
As described in Figure 1, this utility model embodiment provides a kind of multi-stage screw drive mechanism, including multi-stage rotor group,
Rotor set includes the male rotor cooperating and female rotor, and multi-stage rotor group is had multiple male rotors and corresponded with male rotor
Female rotor, one of multiple male rotors male rotor is the first male rotor 1, and the first male rotor 1 is used for the drive with driving means
Moved end rotates and connects.In adjacent two-stage rotor set, the male rotor in previous stage rotor set and/or female rotor and rear stage rotor
The gear 3 being coaxially disposed is respectively provided with the male rotor in group；The gear 3 of adjacent two-stage rotor set intermeshes.
That is, in this utility model embodiment, gear 3 can be set on two male rotors, this two male rotors are respectively
Male rotor in previous stage rotor set and the male rotor in rear stage rotor set.Nibbled mutually by the gear 3 on two male rotors
Close, the gear 3 realizing adjacent two-stage rotor set intermeshes, and realizes the transmission between adjacent two-stage rotor set.
Gear 3 can also be arranged on the male rotor in the female rotor in previous stage rotor set and rear stage rotor set.Logical
Cross a female rotor to intermesh with the gear 3 on a male rotor, the gear 3 realizing adjacent two-stage rotor set intermeshes,
Realize the transmission between adjacent two-stage rotor set.
Gear 3 can also be respectively provided with the male rotor in previous stage rotor set and female rotor, i.e. in previous stage rotor set
There are two gears 3, and, gear 3 is set on the male rotor in rear stage rotor set, by by rear stage rotor set
Gear 3 on male rotor is engaged each other with two gears 3 in previous stage rotor set, and the program can also improve gear further
The precision of 3 engagements and the degree of stability of transmission.
The multi-stage screw drive mechanism that this utility model embodiment provides, one of multiple male rotors are the first male rotor
1, the first male rotor 1 is used for being connected with the drive end rotation of driving means, in order to provide rotatory force to multiple male rotors.Adjacent
The gear 3 of two-stage rotor set engages each other.By above-mentioned setting so that the male rotor in multi-stage rotor group all rotates.Due to phase
Adjacent two-stage rotor set is engaged by gear 3 and completes to be driven, it is to avoid setting shaft coupling, therefore, turning in adjacent two-stage rotor set
Son can also coordinate transmission without co-axially align, effectively reduce the entire length of multi-stage rotor group cooperation transmission, reduce pressure
The overall structure of contracting machine, effectively increases the structural compactness of compressor, and, reduce compressor overall operation noise and
Vibration.
It is understood that gear 3 can by helical-lobe compressor existing freezing oil be lubricated and freeze it is ensured that
Run safety and part service life.And, in adjacent two-stage rotor set, previous stage rotor set is the rotor near driving means
Group, rear stage rotor set is the rotor set away from driving means.The driving force of driving means transmission is transmitted by previous stage rotor set
To rear stage rotor set.
As shown in figure 1, the quantity of male rotor is two.Therefore, the quantity of rotor set is two-stage, i.e. in the present embodiment
Multi-stage screw drive mechanism is two-stage screw drive mechanism.In the present embodiment, two male rotors are the first male rotor 1 and the
Two male rotors 2, also include and the first female rotor 5 of the first male rotor 1 cooperation and the second female rotor with the second male rotor 2 cooperation
6.
In the present embodiment, the first male rotor 1 is used for being rotated with the drive end of driving means and is connected, on the first male rotor 1
Gear 3 engage with the gear 3 on the second male rotor 2, and then make the first male rotor 1 rotate when drive 2 turns of the second male rotor
Dynamic.
Gear 3, the gear 3 on the first female rotor 5 and can also be arranged on the first female rotor 5 and the second male rotor 2
Gear 3 on two male rotors 2 engages each other.
The quantity of male rotor can also be three, i.e. in also having in the middle of the first male rotor 1 and the second male rotor 2
Between male rotor, middle male rotor can arrange two gears 3, respectively with the first male rotor 1 and the second male rotor 2 on gear
3 engagements；One gear 3 can also be set, jointly coordinate with the gear 3 on the first male rotor 1 and the second male rotor 2.
As shown in Figures 1 and 2, in order to avoid male rotor has axial force, gear 3 is preferably spur gear wheel.
Gear 3 can also be set to cylindric spiral gear；Or, gear 3 is set to straight bevel gear 3；Or, by tooth
Wheel 3 is set to circular cone helical gear 3.
In the present embodiment, gear 3 is located at the end of the rotor of rotor set.Wherein, the rotor of above-mentioned rotor set is setting
Cogged male rotor or female rotor.So that gear 3 is provided with male rotor as a example, gear 3 be arranged at male rotor end so that
Gear 3 is away from the spiro rod section of male rotor, and then avoids interfering between gear 3 and the female rotor on male rotor.
Preferably, the rotor coordinating transmission in adjacent two-stage rotor set is respectively power rotor and passive rotor；Actively turn
The opposite end of son and passive rotor is provided with gear 3.As shown in figure 1, the first male rotor 1 drives the second male rotor 2 to rotate, because
This, the first male rotor 1 is power rotor, and the second male rotor 2 is passive rotor.Wherein, the first male rotor 1 and the second male rotor 2
Opposite end be provided with gear 3 so that the first male rotor 1 and the second male rotor 2 are along the direction arrangement away from driving means, convenient
The setting of compressor housing, has been also convenient for cooperating of the first male rotor 1 and second male rotor 2.
Gear 3 can also be arranged at power rotor (the first male rotor 1) and the homonymy of passive rotor (the second male rotor 2)
End, in order to the first male rotor 1 and the second male rotor 2 along perpendicular to the arrangement of the direction of male rotor axis.
It is located at the same side of male rotor with two female rotors of two neighboring male rotor cooperation.In the present embodiment, first is cloudy
Rotor 5 is coordinated with the first male rotor 1, and the second female rotor 6 is coordinated with the second male rotor 2, the first female rotor 5 and the second female rotor 6
The same side positioned at the first male rotor 1 and the second male rotor 2.As shown in figure 1, the first female rotor 5 is located in figure the first male rotor 1
Lower section, the second female rotor 6 is located at the lower section of in figure the second male rotor 2.In order to make the first female rotor 5 and the first male rotor
Gap (the second compression coordinating between the gap (the first compression chamber) of cooperation and the second female rotor 6 and the second male rotor 2 between 1
Chamber) it is oppositely arranged, facilitate the arrangement of compressor housing.Two female rotors can also be located at respectively the both sides of male rotor,
This is no longer discussed in detail and all within protection domain.
External thread section is had on the outer wall of the rotor of rotor set, gear 3 has the internal thread hole matching with external thread section.
That is, gear 3 and male rotor screw thread are connected, and further increase the connective stability of gear 3 and male rotor.Can also be in tooth
Unthreaded hole, male rotor and unthreaded hole interference or excessive cooperation are arranged on wheel 3.Can also be using other modes it is only necessary to guarantee gear 3 and sun
Rotor common rotation.Wherein, the rotor of above-mentioned rotor set is to arrange cogged male rotor or female rotor.
As shown in figure 1, also including locking nut in the multi-stage screw drive mechanism of this utility model embodiment offer, locking
Nut and the external thread section cooperation of rotor, are used for avoiding gear 3 to slip.By arranging locking nut, further increase gear 3
Stability maintenance on rotor, it is to avoid gear 3 slips from rotor.
In the present embodiment, the first male rotor 1 has the rotor key being connected for the drive end with driving means
Groove；There is in rotor keyway the rotor key 11 being matched therewith.That is, the first male rotor 1 passes through rotor key 11 and driving means
Drive end connects.The drive end of driving means and the first male rotor 1 can also be passed through gear drive, here is no longer situated between in detail
Continue.
Above-mentioned driving means are preferably motor.
In the present embodiment, the first male rotor 1 is low-pressure stage male rotor.As shown in Fig. 1 and Fig. 4, the first male rotor 1 is low
Arbitrarily downgrade male rotor, therefore, the second male rotor 2 is low-pressure stage male rotor, in order to match with decrement, the first male rotor 1 straight
Footpath is more than the diameter of the second male rotor 2, is more beneficial for the cooperation transmission of the first male rotor and the second male rotor 2, improves transmission
Stability.
This utility model embodiment additionally provides a kind of helical-lobe compressor, including compressor housing and positioned at compressor housing
Internal multi-stage screw drive mechanism, multi-stage screw drive mechanism is as any one multi-stage screw drive mechanism above-mentioned.Due to upper
State multi-stage screw drive mechanism and there is above-mentioned technique effect, the helical-lobe compressor with above-mentioned multi-stage screw drive mechanism also should have
There is same technique effect, here is no longer discussed in detail.
The female rotor of the male rotor of multi-stage screw drive mechanism and/or multi-stage screw drive mechanism passes through bearing bracket stand located at pressure
In contracting casing body, in order to improve rotational stability, reduce friction loss.
Compressor housing includes low-pressure stage compressor housing and high pressure stage compressor housing.
As shown in figure 3, the first male rotor 1 and the first female rotor 5 are arranged in low-pressure stage compression case body.First male rotor
1 is connected with driving means (motor) by rotor key 11, and low-pressure stage is passed through in the first male rotor 1 and the one end with the first female rotor 5
Aerofluxuss bearing group 8 is fixed in the aerofluxuss bearing block of low-pressure stage compressor housing.First male rotor 1 and with the first female rotor 5
The other end (near one end of driving means) is fixed on the air-breathing axle of low-pressure stage compressor housing by low-pressure stage air-breathing bearing group 7
In bearing.
Second male rotor 2 and the second female rotor 6 are arranged in high pressure stage compressor housing, and the second male rotor 2 and second is cloudy
One end of rotor 6 is fixed in the aerofluxuss bearing block of high pressure stage compressor housing by hiigh pressure stage aerofluxuss bearing group 10.Second sun
Rotor 2 is fixed on by hiigh pressure stage air-breathing bearing group 9 with the other end (near one end of the first male rotor 1) of the second female rotor 6
In the air-breathing bearing block of high pressure stage compressor housing.
During installation, first low-pressure stage rotor set is assembled the (part such as the first male rotor 1, the first female rotor 5 and bearing installation
In low-pressure stage compression case body), then hiigh pressure stage rotor set is assembled (the second male rotor 2, the second female rotor 6 and bearing etc.
Part is installed in high pressure stage compressor housing), the gear 3 on gear 3 and the second male rotor 2 on adjustment the first male rotor 1
Position so that two gears 3 engage each other, then low-pressure stage compressor housing is aligned with high pressure stage compressor housing and connects
Install.
By above-mentioned setting, the quantity of compressor housing is multiple and is corresponded with rotor set.That is, compressor housing bag
Include low-pressure stage compressor housing and high pressure stage compressor housing.By above-mentioned setting it can be seen that facilitating the assembling of compressor.
One compressor housing can also be set, multi-stage rotor group is installed in same compression case body.
The helical-lobe compressor that this utility model embodiment provides, also includes the adjustment hole being arranged on compressor housing, adjusts
Knothole is used for adjusting gear 3 position, and therefore, adjustment hole is correspondingly arranged with gear 3.After helical-lobe compressor is installed, available instrument
By adjustment hole, the position of gear 3 is adjusted again, to ensure installation accuracy.
Preferably, adjustment hole is QI invigorating hole.In order to improve the range of application of adjustment hole.
As shown in figure 4, the first male rotor 1 and the second male rotor 2 can not be in same levels.It is of course also possible to will
First male rotor 1 and the second male rotor 2 are arranged in same level.Above-mentioned horizontal plane is helical-lobe compressor normal operating conditions
Under horizontal plane.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or new using this practicality
Type.Multiple modifications to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The wide scope consistent with features of novelty.
Claims (12)
1. a kind of multi-stage screw drive mechanism, including multi-stage rotor group, described rotor set includes the male rotor cooperating and the moon
Rotor, one of multistage described rotor set male rotor is the first male rotor for being connected with the drive end rotation of driving means
(1) it is characterised in that in rotor set described in adjacent two-stage, male rotor in rotor set described in previous stage and/or female rotor and after
The gear (3) being coaxially disposed is respectively provided with the male rotor in rotor set described in one-level；
The described gear (3) of rotor set described in adjacent two-stage intermeshes.
2. multi-stage screw drive mechanism as claimed in claim 1 is it is characterised in that the quantity of described rotor set is two-stage.
3. multi-stage screw drive mechanism as claimed in claim 1 is it is characterised in that described gear (3) is located at described rotor set
Rotor end.
4. multi-stage screw drive mechanism as claimed in claim 3 passes it is characterised in that coordinating in rotor set described in adjacent two-stage
Dynamic rotor is respectively power rotor and passive rotor；
The opposite end of described power rotor and described passive rotor is provided with described gear (3).
5. multi-stage screw drive mechanism as claimed in claim 1 is it is characterised in that coordinate with two neighboring described male rotor
Two female rotors are located at the same side of described male rotor.
6. multi-stage screw drive mechanism as claimed in claim 1 is it is characterised in that have on the outer wall of the rotor of described rotor set
There is external thread section, described gear (3) has the internal thread hole matching with described external thread section.
7. multi-stage screw drive mechanism as claimed in claim 6 it is characterised in that also include and described external thread section cooperation,
For the locking nut avoiding described gear (3) to slip.
8. multi-stage screw drive mechanism as claimed in claim 1 is it is characterised in that described first male rotor (1) is low-pressure stage
Male rotor.
9. a kind of helical-lobe compressor, the multi-stage screw transmission knot including compressor housing and positioned at described compressor
Structure is it is characterised in that described multi-stage screw drive mechanism is the multi-stage screw transmission knot as described in any one of claim 1-8
Structure.
10. helical-lobe compressor as claimed in claim 9 it is characterised in that described compressor housing quantity be multiple and with
Described rotor set corresponds.
11. helical-lobe compressors as claimed in claim 10 it is characterised in that also including being arranged on described compressor housing,
For adjusting the adjustment hole of described gear (3) position；
Described adjustment hole is correspondingly arranged with described gear (3).
12. helical-lobe compressors as claimed in claim 11 are it is characterised in that described adjustment hole is QI invigorating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835463.4U CN205918589U (en) | 2016-08-01 | 2016-08-01 | Helical -lobe compressor and multistage screw drive structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620835463.4U CN205918589U (en) | 2016-08-01 | 2016-08-01 | Helical -lobe compressor and multistage screw drive structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918589U true CN205918589U (en) | 2017-02-01 |
Family
ID=57870152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620835463.4U Ceased CN205918589U (en) | 2016-08-01 | 2016-08-01 | Helical -lobe compressor and multistage screw drive structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050657A (en) * | 2016-08-01 | 2016-10-26 | 珠海格力电器股份有限公司 | Screw compressor and multistage screw drive structure thereof |
| CN109236646A (en) * | 2018-10-30 | 2019-01-18 | 西漠能源技术（苏州）有限公司 | A kind of single shaft two-stage screw compressor |
-
2016
- 2016-08-01 CN CN201620835463.4U patent/CN205918589U/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050657A (en) * | 2016-08-01 | 2016-10-26 | 珠海格力电器股份有限公司 | Screw compressor and multistage screw drive structure thereof |
| CN109322824A (en) * | 2016-08-01 | 2019-02-12 | 珠海格力电器股份有限公司 | Helical-lobe compressor and its multi-stage screw drive mechanism |
| CN109236646A (en) * | 2018-10-30 | 2019-01-18 | 西漠能源技术（苏州）有限公司 | A kind of single shaft two-stage screw compressor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20190322 Decision number of declaring invalidation: 39447 Granted publication date: 20170201 |