CN219570333U - Driving connection structure for two-stage dry oil-free screw compressor - Google Patents
Driving connection structure for two-stage dry oil-free screw compressor Download PDFInfo
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- CN219570333U CN219570333U CN202320206429.0U CN202320206429U CN219570333U CN 219570333 U CN219570333 U CN 219570333U CN 202320206429 U CN202320206429 U CN 202320206429U CN 219570333 U CN219570333 U CN 219570333U
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- screw compressor
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Abstract
The utility model relates to a driving connection structure used in a two-stage dry oil-free screw compressor. The existing two-stage dry oil-free screw compressor is provided with a gear box, and is complex in structure. The utility model comprises a driving motor, a connecting shell, a shell, an exhaust end, a rear cover plate, a male rotor, a female rotor and a synchronous gear, wherein the driving motor, the connecting shell, the exhaust end and the rear cover plate are sequentially connected, the male rotor and the female rotor are both arranged in the shell, the male rotor is meshed with the female rotor, and the synchronous gear is connected between the male rotor and the female rotor, and the structure is characterized in that: the driving motor is provided with a motor shaft; the motor shaft of the driving motor is fixed with one end of the male rotor through a spline, or the motor shaft of the driving motor is fixed with one end of the male rotor through a coupler, or the motor shaft of the driving motor and the male rotor are of an integrated structure. The utility model has simple structure and reasonable design, and is convenient for installation and maintenance.
Description
Technical Field
The utility model relates to a driving connection structure used in a two-stage dry oil-free screw compressor.
Background
The current commonly used double-stage dry oil-free screw compressor comprises a driving motor, a gear box and a male rotor, wherein a motor shaft is arranged on the driving motor, the motor shaft on the driving motor is connected with the gear box, the gear box is connected with the male rotor, the driving motor drives the motor shaft to rotate during working, then the motor shaft drives the gear box to rotate, and the gear box drives the male rotor to rotate. The gear box is arranged in the existing common two-stage dry type oil-free screw compressor, so that the two-stage dry type oil-free screw compressor is complex in structure, and the workload of equipment installation and maintenance is high.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide the drive connection structure for the two-stage dry oil-free screw compressor, which has the advantages of simple structure, reasonable design and convenience in installation and maintenance.
The utility model solves the problems by adopting the following technical scheme: this a drive connection structure for in doublestage dry-type does not have oil screw compressor includes driving motor, connection casing, exhaust end, back shroud, male rotor, female rotor and synchro-pinion, driving motor, connection casing, exhaust end and back shroud connect gradually, male rotor and female rotor are all installed in the casing, and this male rotor and female rotor meshing, be connected with synchro-pinion between male rotor and the female rotor, its structural feature lies in: the driving motor is provided with a motor shaft; the motor shaft of the driving motor is fixed with one end of the male rotor through a spline, or the motor shaft of the driving motor is fixed with one end of the male rotor through a coupler, or the motor shaft of the driving motor and the male rotor are of an integrated structure.
Preferably, the driving motor is a variable frequency motor.
Preferably, the synchronous gear is positioned at the other end of the male rotor.
Compared with the prior art, the utility model has the following advantages and effects: simple structure, reasonable in design, be convenient for installation and maintenance. In the double-stage dry oil-free screw compressor, a motor shaft of a driving motor is fixed with one end of a male rotor through a spline, or the motor shaft of the driving motor is fixed with one end of the male rotor through a coupler, or the motor shaft of the driving motor and the male rotor are of an integrated structure, and the motor shaft and the male rotor are connected simply and reliably, so that the transmission efficiency is high, and the performance is stable.
In practical application, the two driving motors are used for respectively controlling the rotating speeds of the high-pressure male rotor and the low-pressure male rotor, the high-pressure small host machine and the low-pressure small host machine are relatively independent, and the rotating speeds of the high-pressure male rotor and the low-pressure male rotor can be respectively and accurately controlled, so that the two-stage dry oil-free screw compressor has better performance. The motor shaft is directly connected with one end of the low-pressure male rotor through a spline (or a coupler) to drive the male rotor to rotate together. And a pair of meshed synchronous gears are respectively arranged at the other ends of the male rotor and the female rotor, and after the male rotor is driven, the synchronous gears on the male rotor rotate together with the male rotor and drive the synchronous gears on the female rotor, and the female rotor rotates together with the synchronous gears. The spline (or the coupler) is directly arranged on the motor shaft and the male rotor and is positioned in the connecting shell, the synchronous gears are meshed with each other and are respectively arranged on the female rotor and the male rotor, and the female rotor and the male rotor are meshed with each other and are arranged in the shell. When the motor shaft and the male rotor of the driving motor are of an integrated structure, the low-voltage male rotor and the motor shaft are one part, the male rotor can rotate when the driving motor is started, the male rotor rotates, the synchronous gear on the male rotor rotates together with the male rotor, the synchronous gear on the female rotor is driven, and the female rotor rotates together with the synchronous gear. The high pressure stage power transmission is consistent with the low pressure stage. The high-pressure small host and the low-pressure small host are relatively independent and are fastened on the oil tank through bolts. The low-pressure stage shell and the high-pressure stage shell are respectively provided with an air inlet and an air outlet.
Drawings
In order to more clearly illustrate the embodiments of the utility model and/or the technical solutions of the prior art, the drawings that are required in the description of the embodiments and/or the prior art will be briefly described below, it being obvious that the drawings in the description below are only some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a drive connection structure for use in a two-stage dry oil-free screw compressor in accordance with embodiment 1 of the present utility model.
FIG. 2 is a schematic cross-sectional view of the A-A plane of FIG. 1.
Fig. 3 is a schematic sectional structure view of a drive connection structure for use in a two-stage dry oil-free screw compressor in embodiment 2 of the present utility model.
Fig. 4 is a schematic view of the structure of the drive connection structure for use in the two-stage dry oil-free screw compressor in embodiment 3 of the present utility model.
FIG. 5 is a schematic cross-sectional view of the plane B-B of FIG. 4.
Detailed Description
The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.
Example 1.
Referring to fig. 1 to 2, the drive connection structure for use in the two-stage dry type oil-free screw compressor in the present embodiment includes a drive motor 1, a connection housing 2, a housing 3, an exhaust end 4, a back cover plate 5, a male rotor 6, a female rotor, a synchronizing gear 7, and a spline 8, wherein the drive motor 1 is a variable frequency motor, and the drive motor 1 is provided with a motor shaft 11.
The driving motor 1 and the connection housing 2 in this embodiment are fixed, the connection housing 2 and the housing 3 are fixed, the housing 3 and the exhaust end 4 are fixed, and the exhaust end 4 and the rear cover plate 5 are fixed, that is, the driving motor 1, the connection housing 2, the housing 3, the exhaust end 4 and the rear cover plate 5 are sequentially connected.
The male rotor 6 and the female rotor in the embodiment are both arranged in the shell 3, the male rotor 6 and the female rotor can rotate in the shell 3, the male rotor 6 and the female rotor are meshed, a synchronous gear 7 is connected between the male rotor 6 and the female rotor, and the synchronous gear 7 is positioned at the other end of the male rotor 6.
The motor shaft 11 of the driving motor 1 in the embodiment is fixed with one end of the male rotor 6 through the spline 8, the connection between the motor shaft 11 and the male rotor 6 is simple and reliable, the transmission effect is good, the installation and the maintenance are convenient, and the simplification of the integral structure of the two-stage dry oil-free screw compressor is facilitated.
Example 2.
Referring to fig. 3, the driving connection structure for use in the two-stage dry type oil-free screw compressor of the present embodiment includes a driving motor 1, a connection housing 2, a housing 3, an exhaust end 4, a back cover plate 5, a male rotor 6, a female rotor, a synchronizing gear 7, and a coupling 9, and is different from embodiment 1 in that a motor shaft 11 of the driving motor 1 is fixed through one end of the coupling 9 and the male rotor 6, and other structures are the same as or similar to embodiment 1.
The motor shaft 11 of the driving motor 1 in the embodiment is fixed with one end of the male rotor 6 through the coupler 9, the structure is simple, the transmission effect is good, the structure of a gear box is omitted, the installation and the maintenance are convenient, and the simplification of the integral structure of the two-stage dry oil-free screw compressor is facilitated.
Example 3.
Referring to fig. 4 to 5, the driving connection structure for the two-stage dry type oil-free screw compressor of the present embodiment includes a driving motor 1, a connection housing 2, a housing 3, a discharge end 4, a back cover plate 5, a male rotor 6, a female rotor and a synchronizing gear 7, and is different from embodiment 1 in that a motor shaft 11 and a male rotor 6 of the driving motor 1 are integrated, i.e., the motor shaft 11 and the male rotor 6 are combined into one piece, and other structures are the same as or similar to embodiment 1.
The motor shaft 11 and the male rotor 6 of the driving motor 1 in the embodiment are of an integrated structure, the structure is simple and firm, the concentricity is high, the transmission effect is good, the structure of a gear box is omitted, the installation and the maintenance are convenient, and the simplification of the integral structure of the two-stage dry oil-free screw compressor is facilitated.
In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present utility model. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.
Claims (3)
1. The utility model provides a drive connection structure for in doublestage dry-type does not have oil screw compressor, includes driving motor (1), connection casing (2), casing (3), exhaust end (4), back shroud (5), male rotor (6), female rotor and synchro-pinion (7), driving motor (1), connection casing (2), casing (3), exhaust end (4) and back shroud (5) connect gradually, male rotor (6) and female rotor are all installed in casing (3), and this male rotor (6) and female rotor meshing, be connected with synchro-pinion (7) between male rotor (6) and the female rotor, its characterized in that: the driving motor (1) is provided with a motor shaft (11); the motor shaft (11) of the driving motor (1) is fixed with one end of the male rotor (6) through a spline (8), or the motor shaft (11) of the driving motor (1) is fixed with one end of the male rotor (6) through a coupler (9), or the motor shaft (11) of the driving motor (1) and the male rotor (6) are of an integrated structure.
2. The drive connection for use in a dual stage dry oil free screw compressor of claim 1 wherein: the driving motor (1) is a variable frequency motor.
3. The drive connection for use in a dual stage dry oil free screw compressor of claim 1 wherein: the synchronous gear (7) is positioned at the other end of the male rotor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320206429.0U CN219570333U (en) | 2023-02-14 | 2023-02-14 | Driving connection structure for two-stage dry oil-free screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320206429.0U CN219570333U (en) | 2023-02-14 | 2023-02-14 | Driving connection structure for two-stage dry oil-free screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570333U true CN219570333U (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320206429.0U Active CN219570333U (en) | 2023-02-14 | 2023-02-14 | Driving connection structure for two-stage dry oil-free screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570333U (en) |
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2023
- 2023-02-14 CN CN202320206429.0U patent/CN219570333U/en active Active
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