CN201330704Y - Principal machine of single-screw air compressor - Google Patents
Principal machine of single-screw air compressor Download PDFInfo
- Publication number
- CN201330704Y CN201330704Y CNU2008201564196U CN200820156419U CN201330704Y CN 201330704 Y CN201330704 Y CN 201330704Y CN U2008201564196 U CNU2008201564196 U CN U2008201564196U CN 200820156419 U CN200820156419 U CN 200820156419U CN 201330704 Y CN201330704 Y CN 201330704Y
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- worm
- screw
- compressor
- air compressor
- worm screw
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Abstract
The utility model relates to a principal machine of a single-screw air compressor. The principal machine comprises a worm shaft (2), a second worm (30) and a second star wheel piece (100), wherein, the worm shaft (2) is connected with a shaft coupling (6) and a first worm (3); the first worm (3) is engaged with a first star wheel piece (10); the second worm (30) and the second star wheel piece (100) are the same as the first worm (3) and the first star wheel piece (10) respectively; and the second worm (30) is serially connected with the worm shaft (2). The utility model has the following beneficial effects: compared with a large screw air compressor with the same volume, the principal machine can be machined, assembled and detected more easily because the sizes of main parts are reduced.
Description
Technical field
The utility model relates to a kind of single-screw air compressor host, relates in particular in this single-screw air compressor host linkage structure between the worm screw and star-wheel.
Background technique
The engagement pair that single screw compressor mainly is made up of the plane star-wheel of a cylindrical worm and two symmetric arrangement is contained in the casing to be formed.The gear ratio of general worm screw and star-wheel is 6: 11, and 6 spiral fluted worm screws and the star-wheel engagement that 11 star-wheel teeth are arranged are promptly arranged, and each star-wheel tooth is divided into two spaces up and down with the spiral chute that is engaged with, and realizes the thermal procession of compression separately.Characteristics such as single screw compressor has the simple in structure of rotary compressor, and volume is little also have equilibrium of forces rational in infrastructure, desirable, and single-machine capacity is big, no volume clearance; Advantages such as the low vibration of noise is little.
Cube being directly proportional of the volume flow of single screw compressor (air displacement) and rotor (worm screw and star-wheel) diameter, the compressor of therefore big volume flow should be selected big root diameter for use, excessive root diameter will cause the difficulty in the manufacturing, the expansion of manufacture cost increase and main frame radial dimension.In addition, root diameter is subjected to the restriction of rotor tooth tip circle circular velocity again, and it is a key factor that influences compressor size, weight, efficient and rotating manner.
Improve tooth top speed, on the one hand compressor weight and boundary dimension are improved, the relative leakage rate of gas by each gap location of enclosed volume will reduce, and has improved the volumetric efficiency and the adiabatic efficiency of compressor; On the other hand, the fluid resistance losses of gas in suction and exhaust ports and between cog volume increased, the engagement pair frictional loss increases, and causes the compressor adiabatic efficiency to reduce, and this is more obvious concerning injected compressor.
This shows: compressor is under a fixed structure and working condition, the tooth top speed that a best must be arranged, usually injected compressor tooth top speed is 10～50m/s, this has just determined jumbo single screw compressor to move under this velocity range, is difficult to adopt the kind of drive of motor and compressor direct connection.
It is higher that single screw compressor is made geometrical shape and each component cooperation position required precision of processing that difficult point is the engagement pair molded lines, housing, and the accuracy of mesh of star-wheel tooth and worm screw groove directly affects life-span of compressor.The single-screw air compressor discharge capacity is big more, and difficulty of processing is just high more.
Because above-mentioned, single-screw air compressor of the prior art generally is no more than 60m
3/ min.
By Figure 1A, Figure 1B as seen, among the figure: clutch shaft bearing 1, worm shaft 2, worm screw 3, second bearing 4, housing 5, coupling 6, connecting cylinder 7, drive motor 8, the 3rd bearing 9, spider piece 10, star-wheel body 11, the 4th bearing 12.This structure is made up of a worm screw 3 and two spider pieces, worm shaft 2 directly is linked together main frame and drive motor 8 by coupling 6, worm shaft drives worm screw and rotates under the effect of drive motor, the worm spiral groove, and the casing inner wall and the spider piece flank of tooth constitute the element volume of sealing.During compressor operation, drive by screw rod that the star-wheel tooth circulates successively and spiral chute meshes, air is entered between the worm screw groove by air aspiration cavity, after the star-wheel tooth enters screw slot, along with star-wheel tooth slide relative in screw slot, the compressed lubricant oil that sprays into atomizing simultaneously of air when the star-wheel tooth runs to the position of design pressure, begins the estuary exhaust from the housing.
How to design a kind of volume less, can accomplish 80-120m again
3The single-screw air compressor host of/min is the problem that the technician will solve.
Summary of the invention
The utility model technical issues that need to address have provided a kind of single-screw air compressor host, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the worm shaft that connects coupling; The described worm shaft and first worm screw are joined, first worm screw and the engagement of first spider piece; Also comprise: second identical with the first worm screw respectively worm screw and second spider piece with first spider piece; Described second worm screw is serially connected on the worm shaft.
Compared with prior art, the beneficial effects of the utility model are: compare with the large scale screw rod machine of same volume, because the main parts size size reduces, be easy to processing, assembling and detection.
Description of drawings
Figure 1A is a single-screw air compressor host structural representation in the prior art;
Figure 1B is the side view of Figure 1A;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 2: the utility model comprises: the worm shaft 2 that connects coupling 6; The described worm shaft 2 and first worm screw 3 are joined, first worm screw 3 and 10 engagements of first spider piece; Also comprise: identical with first worm screw 3 respectively second worm screw 30 and second spider piece 100 with first spider piece 10; Described second worm screw 30 is serially connected on the worm shaft 2;
The mesh phase dislocation in a circumferential direction of the rotor screw channel of described first worm screw 3 and first spider piece 10 and second worm screw 30 and second spider piece 100.
With being installed in the housing of two identical worm screws series connection, each worm screw and two spider pieces and housing are formed an organic compressor units to the utility model then with a worm shaft, and two groups of compressor units are finished compressed-air actuated thermal procession separately.Simultaneously, the screw channel of two worm screw rotors suitably misplaces with the mesh phase of two star-wheels in a circumferential direction, thereby makes compressor pressure pulse and torque frequency double, and their alternation amplitude then reduces half, and the vibration of complete machine, noise are obviously descended.
The utility model adopts a worm shaft with being installed in the housing of two identical worm screws series connection, realizes air-breathingly separately, compresses, the design proposal of exhaust, and having solved separate unit compressor volume flow is 120m
3The root diameter of/min is big, the difficult problem of tooth top speed height and manufacturing process difficulty.
The screw channel of two worm screw rotors of the utility model suitably misplaces with the mesh phase of two star-wheels in a circumferential direction, thereby make compressor pressure pulse and torque frequency double, their alternation amplitude then reduces half, vibration, the noise of complete machine are obviously descended, reduced specific power (specific power: 5.4KW/m
3Min
-1), reduced operating cost.
The utility model is except that housing, main shaft side cover, and main parts size such as rotor, star-wheel assembly and connecting cylinder and volume flow are 60m
3The separate unit compressor component of/min are identical, have good versatility, and manufacture cost is 60m than two volume flows
3/ min main frame reduces by 30%.
Claims (2)
1. a single-screw air compressor host comprises: the worm shaft (2) that connects coupling (6); Described worm shaft (2) joins with first worm screw (3), first worm screw (3) and first spider piece (10) engagement; It is characterized in that also comprising: identical with first worm screw (3) respectively second worm screw (30) and second spider piece (100) with first spider piece (10); Described second worm screw (30) is serially connected on the worm shaft (2).
2. single-screw air compressor host according to claim 1 is characterized in that: described first worm screw (3) and first spider piece (10) misplace with the rotor screw channel mesh phase in a circumferential direction of second worm screw (30) and second spider piece (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201564196U CN201330704Y (en) | 2008-12-02 | 2008-12-02 | Principal machine of single-screw air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201564196U CN201330704Y (en) | 2008-12-02 | 2008-12-02 | Principal machine of single-screw air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330704Y true CN201330704Y (en) | 2009-10-21 |
Family
ID=41224082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201564196U Expired - Lifetime CN201330704Y (en) | 2008-12-02 | 2008-12-02 | Principal machine of single-screw air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330704Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762633A (en) * | 2017-01-10 | 2017-05-31 | 麦克维尔空调制冷(苏州)有限公司 | A kind of multiscrew formula determines frequency refrigeration compressor |
-
2008
- 2008-12-02 CN CNU2008201564196U patent/CN201330704Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762633A (en) * | 2017-01-10 | 2017-05-31 | 麦克维尔空调制冷(苏州)有限公司 | A kind of multiscrew formula determines frequency refrigeration compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI FEIHE COMPRESSOR MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SHANGHAI FEIHE INDUSTRY GROUP CO., LTD. Effective date: 20120203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120203 Address after: 200444 Shanghai city Baoshan District City Bank Road No. 118 Patentee after: Shanghai Feihe Compressor Manufacturing Co., Ltd. Address before: 200444 No. 518 Industrial Road, Shanghai, Baoshan District Patentee before: Shanghai Feihe Industry Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091021 |
|
| CX01 | Expiry of patent term |