CN209430407U - Two-stage screw compressor and its twin-stage rotor set mounting structure used - Google Patents
Two-stage screw compressor and its twin-stage rotor set mounting structure used Download PDFInfo
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- CN209430407U CN209430407U CN201822220172.6U CN201822220172U CN209430407U CN 209430407 U CN209430407 U CN 209430407U CN 201822220172 U CN201822220172 U CN 201822220172U CN 209430407 U CN209430407 U CN 209430407U
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Abstract
The twin-stage rotor set mounting structure that the utility model provides a kind of two-stage screw compressor and its uses.Twin-stage rotor set mounting structure includes motor, first order rotor set and second level rotor set.Two-stage screw compressor provided by the utility model and its twin-stage rotor set mounting structure used, by being arranged motor between two-stage rotor set, improve the stability of two-stage screw compressor, can guarantee that overall volume can be reduced as far as possible under the premise of transmission efficiency, avoid the problem of being not allowed using shaft coupling centering and transmission efficiency is caused to reduce, and setting gear-box, it can be according to the position between two-stage rotor set and the quantity apart from setting gear, to meet structural requirement, and lubricating grease is set inside housings, reduce the processing technology difficulty of shell as far as possible in the case where meeting lubrication, and the refrigerant in compression can be made to exchange heat with gear-box by the way that diversion trench is arranged, reduce the heat of gear-box, to guarantee the reliability of gear-box.
Description
Technical field
The utility model relates to Compressor Technology field, especially a kind of two-stage screw compressor and its twin-stage used turn
Subgroup mounting structure.
Background technique
Two-stage screw compressor is lower suitable for evaporating temperatures such as freezing and refrigeration, low temperature environment laboratories, and refrigeration requirement is big
Place.The two-stage rotor of single machine two-stage screw bolt compressor uses the form of shaft coupling connection at present, in order to guarantee that shaft coupling is pacified
Dress is not interfered, and body must just design bigger, and is not allowed to will cause noise there are shaft coupling centering and is increased and influence to press
The problem of contracting machine is run, and directly affects the efficiency of compressor.
Utility model content
In order to solve excessive and low using the shaft coupling transmission efficiency technical problem of compressor size, and one kind is provided and is passed through
The twin-stage rotor set mounting structure that gear drive reduces size and guarantees the two-stage screw compressor of transmission efficiency and its use.
A kind of twin-stage rotor set mounting structure, including motor, first order rotor set and second level rotor set, the motor are set
It is placed between the first order rotor set and the second level rotor set, and the first end of the motor shaft of the motor and described the
Primary rotor group is directly connected to, and second end is connect with the second level rotor set by gear drive.
The gear drive includes driving gear and driven gear, and the driving gear is set to the motor shaft
At second end, the driven gear is set in the second level rotor set.
The second level rotor set includes the second male rotor and the second female rotor, and the driven gear is set to described second
On male rotor.
The gear drive includes gear-box, the motor axis connection of the input terminal of the gear-box and the motor,
The output end of the gear-box is connect with the second level rotor set.
The gear-box includes shell and a plurality of gears for being set to the enclosure interior, and all gears are described
Enclosure interior forms at least one level engaging structure.
Shaft entrance and shaft outlet are provided on the shell, the end of the motor shaft of the motor passes through the shaft
Entrance protrudes into the enclosure interior, and the enclosure interior is protruded by shaft outlet in the end of the second level rotor set.
The shaft entrance and/or the shaft exit are provided with rolling bearing.
The enclosure interior is provided with lubricating grease.
The peripheral side of the shell is provided with diversion trench.
First arbitrarily downgrade rotor set root diameter be greater than the second level rotor set root diameter.
A kind of two-stage screw compressor, including above-mentioned twin-stage rotor set mounting structure.
The compressor includes shell, and the twin-stage rotor set mounting structure is set to the interior of shell, and with it is described
Tonifying Qi hole is provided on the corresponding shell of gear drive.
Two-stage screw compressor provided by the utility model and its twin-stage rotor set mounting structure used, by by motor
It is arranged between two-stage rotor set, reduces transmission distance, reduce the distance between motor and two rotor sets, improve twin-stage spiral shell
The stability of bar compressor can reduce whole body using gear drive as far as possible under the premise of can guarantee transmission efficiency
Product is avoided the problem of being not allowed using shaft coupling centering and transmission efficiency is caused to reduce, and gear-box is arranged, can be according to two
Position between grade rotor set and the quantity apart from setting gear, to meet structural requirement, and setting profit inside housings
Consistent lubricant reduces the processing technology difficulty of shell as far as possible in the case where meeting lubrication, and can be made by the way that diversion trench is arranged
Refrigerant in compression exchanges heat with gear-box, reduces the heat of gear-box, to guarantee the reliability of gear-box.
Detailed description of the invention
Fig. 1 is the implementation of two-stage screw compressor provided by the utility model and its twin-stage rotor set mounting structure used
The structural schematic diagram of the twin-stage rotor set mounting structure of example；
Fig. 2 is the implementation of two-stage screw compressor provided by the utility model and its twin-stage rotor set mounting structure used
The structural schematic diagram using gear-box of the twin-stage rotor set mounting structure of example；
In figure:
1, motor；3, first order rotor set；2, gear drive；21, driving gear；22, driven gear；31, first
Male rotor；32, the first female rotor；4, gear-box；5, second level rotor set；51, the second male rotor；52, the second female rotor.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model is not used to limit the utility model.
Twin-stage rotor set mounting structure as depicted in figs. 1 and 2, including motor 1, first order rotor set 3 and the second level turn
Subgroup 5, the motor 1 are set between first order rotor set 3 and second level rotor set 5, and the of the motor shaft of the motor 1
One end and the first male rotor 31 of first order rotor set 3 are directly connected to, the second male rotor 51 of second end and second level rotor set 5
It being connected by gear drive 2, by being arranged motor 1 between first order rotor set 3 and second level rotor set 5, being utilized
The motor shaft of motor 1 directly drives first order rotor set 3, and using gear drive 2 to second level rotor set 5 into
Row driving, as far as possible reduce transmission distance, reduce between motor 1 and first order rotor set 3 and second level rotor set 5 away from
From, the stability of two-stage screw compressor is improved, and gear drive 2 can be utilized, it can be according to compressed media not
Together, the number of teeth of transmission gear is selected, to realize the selective control of revolving speed between first order rotor set 3 and second level rotor set 5,
To improve transmission efficiency.
The gear drive 2 includes driving gear 21 and driven gear 22, and the driving gear 21 is set to described
At the second end of motor shaft, the driven gear 22 is set in the second level rotor set 5, utilizes 21 He of driving gear
Meshing relation between the driven gear 22 realizes driving of the motor 1 to second level rotor set 5, due to body shared by gear itself
Product it is smaller, and install when be arranged side by side, greatly reduce space needed for transmission device, body overall dimensions made to become smaller, reduce at
This.Meanwhile gear can be lubricated and be freezed by the existing refrigeration oil of compressor, guarantee operational safety and part life, as long as
Guarantee the transmission efficiency between gear, so that it may reduce overall structure, and utilize the gear of driving gear 21 and driven gear 22
Than the revolving speed for adjusting corresponding second level rotor set 5.
First order rotor set 3 includes the first male rotor 31 and the first female rotor 32, and motor 1 drives 31 turns of the first male rotor
Dynamic, the first male rotor 31 drives the first female rotor 32 rotation of expected cooperation, and driving gear 21 is mounted on motor shaft, is located at electricity
Side of the machine 1 far from the first male rotor 31.Second level rotor set 5 include the second male rotor 51 and the second female rotor 52, it is described from
Moving gear 22 is set on second male rotor 51, the second male rotor 51 and the second female rotor 52 in second level rotor set 5
Mutually the fluid between it is compressed in rotation, and driven gear 22 drives the second rotor set 5 under the drive of driving gear 21
Carry out above-mentioned compression process.
As another embodiment, driving gear 21 and driven gear 22 are replaced with into gear set namely the gear drive
Mechanism 2 includes gear-box 4, the motor axis connection of the input terminal of the gear-box 4 and the motor 1, the output of the gear-box 4
End connect with the second rotor set 5, gear set can according between first order rotor set 3 and second level rotor set 5 spacing with set
Seated position is adjusted, and the gear quantity and engagement system in gear-box 4 can be according to first order rotor sets and second level rotor
Group setting position and apart from determination.
The gear-box 4 includes shell and a plurality of gears for being set to the enclosure interior, and all gears are in institute
It states enclosure interior and forms at least one level engaging structure, using a plurality of gears, guarantee first order rotor set 3 and second described in two-stage
Compression direction between grade rotor set 5 is identical, so that two stages of compression can be normally carried out by realizing.
Shaft entrance and shaft outlet are provided on the shell, the end of the motor shaft of the motor 1 is turned by described
Axis entrance protrudes into the enclosure interior, and institute is protruded by shaft outlet in 51 end of the second male rotor of second level rotor set 5
State enclosure interior.
The shaft entrance and/or the shaft exit are provided with rolling bearing, guarantee tooth using the rolling bearing
Position between roller box 4 and motor 1 and first order rotor set 3 and second level rotor set 5 it is relatively stable.
The enclosure interior is provided with lubricating grease, is lubricated using gear of the lubricating grease to enclosure interior, from without
Other lubricant passage ways are set on shell, reduce the processing technology of shell.
The peripheral side of the shell is provided with diversion trench, makes fluid between first order rotor set 3 and second level rotor set 5
Pass through the diversion trench in compression, exchange heat with gear-box 4, to prevent that the temperature of gear-box 4 is excessively high and influences gear-box 4
Normal work.
First order rotor set 3 is low-pressure stage rotor set, and second level rotor set 5 is hiigh pressure stage rotor set.
When installation, first low-pressure stage rotor set is assembled, then hiigh pressure stage rotor set is assembled, by the motor shaft of motor 1
It is directly connected to corresponding rotor set 3, and adjusts driving gear 21 and 22 direction of driven gear, enable two gears
Combined crosswise.Finally two-stage shell is aligned and is installed, the installation of 3 mounting structure of two-stage rotor set can be completed.
There is plane locating for plane locating for the hiigh pressure stage rotor set and the low-pressure stage rotor set spacing namely two-stage to turn
Subgroup is not at same plane, so as to be arranged in juxtaposition length required for reducing two-stage rotor set using between gear,
To reduce mounting structure size.
The root diameter of low-pressure stage rotor set is greater than the root diameter of hiigh pressure stage rotor set, to guarantee optimal stability,
When low-pressure stage and the equal pressure ratio of hiigh pressure stage compression, low-pressure stage rotor set and hiigh pressure stage rotor set stress reach balance, can be effective
Reduce vibrating noise.Pressure medium increases after the compression of low-pressure stage rotor set, and volume is reduced, and low-pressure stage volume flow is greater than height at this time
It arbitrarily downgrades volume flow, but the mass flow of two-stage is equal, the first male rotor according to the principle of mass conservation, in low-pressure stage rotor set
When 31 diameters are greater than the second male rotor 51 in hiigh pressure stage rotor set, two-stage discharge capacity reaches optimum proportioning according to user demand, this
When two-stage rotor set stress balance, stress is minimum at connection gear, effectively improves operation gear life and operation stability.
A kind of two-stage screw compressor, including above-mentioned twin-stage rotor set mounting structure.
The compressor includes shell, and the twin-stage rotor set mounting structure is set to the interior of shell, and with it is described
It is provided with tonifying Qi hole on the corresponding shell of gear drive 2, gear can be adjusted using tool by tonifying Qi hole
It is whole, guarantee installation accuracy.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (12)
1. a kind of twin-stage rotor set mounting structure, it is characterised in that: turn including motor (1), first order rotor set (3) and the second level
Subgroup (5), the motor (1) are set between the first order rotor set (3) and the second level rotor set (5), and described
The first end of the motor shaft of motor (1) is directly connected to the first order rotor set (3), second end and the second level rotor set
(5) it is connected by gear drive (2).
2. twin-stage rotor set mounting structure according to claim 1, it is characterised in that: gear drive (2) packet
Driving gear (21) and driven gear (22) are included, the driving gear (21) is set at the second end of the motor shaft, described
Driven gear (22) is set on the second level rotor set (5).
3. twin-stage rotor set mounting structure according to claim 2, it is characterised in that: second level rotor set (5) packet
The second male rotor (51) and the second female rotor (52) are included, the driven gear (22) is set on second male rotor (51).
4. twin-stage rotor set mounting structure according to claim 1, it is characterised in that: gear drive (2) packet
Include gear-box (4), the motor axis connection of the input terminal of the gear-box (4) and the motor (1), the gear-box (4) it is defeated
Outlet is connected with the corresponding second level rotor set (5).
5. twin-stage rotor set mounting structure according to claim 4, it is characterised in that: the gear-box (4) includes shell
With a plurality of gears for being set to the enclosure interior, all gears form at least one level engagement knot in the enclosure interior
Structure.
6. twin-stage rotor set mounting structure according to claim 5, it is characterised in that: be provided with shaft on the shell and enter
Mouthful and shaft outlet, the end of the motor shaft of the motor (1) enclosure interior is protruded by the shaft entrance, described the
The enclosure interior is protruded by shaft outlet in the end of secondary rotor group (5).
7. twin-stage rotor set mounting structure according to claim 6, it is characterised in that: the shaft entrance and/or described
Shaft exit is provided with rolling bearing.
8. twin-stage rotor set mounting structure according to claim 5, it is characterised in that: the enclosure interior is provided with lubrication
Rouge.
9. twin-stage rotor set mounting structure according to claim 5, it is characterised in that: the peripheral side of the shell is provided with
Diversion trench.
10. twin-stage rotor set mounting structure according to claim 1, it is characterised in that: the first order rotor set (3)
Root diameter is greater than the root diameter of the second level rotor set (5).
11. a kind of two-stage screw compressor, it is characterised in that: including twin-stage rotor described in any one of claims 1 to 10
Group mounting structure.
12. two-stage screw compressor according to claim 11, it is characterised in that: the compressor includes shell, described
Twin-stage rotor set mounting structure is set to the interior of shell, and on the shell corresponding with the gear drive (2)
It is provided with tonifying Qi hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220172.6U CN209430407U (en) | 2018-12-27 | 2018-12-27 | Two-stage screw compressor and its twin-stage rotor set mounting structure used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220172.6U CN209430407U (en) | 2018-12-27 | 2018-12-27 | Two-stage screw compressor and its twin-stage rotor set mounting structure used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430407U true CN209430407U (en) | 2019-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822220172.6U Active CN209430407U (en) | 2018-12-27 | 2018-12-27 | Two-stage screw compressor and its twin-stage rotor set mounting structure used |
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|---|---|
| CN (1) | CN209430407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578275A (en) * | 2018-12-27 | 2019-04-05 | 珠海格力电器股份有限公司 | Two-stage screw compressor and its twin-stage rotor set mounting structure used |
-
2018
- 2018-12-27 CN CN201822220172.6U patent/CN209430407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578275A (en) * | 2018-12-27 | 2019-04-05 | 珠海格力电器股份有限公司 | Two-stage screw compressor and its twin-stage rotor set mounting structure used |
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