CN202441621U

CN202441621U - Compressor without speed-up mechanism

Info

Publication number: CN202441621U
Application number: CN2012200329570U
Authority: CN
Inventors: 周震贤; 周晓菁
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-02
Filing date: 2012-02-02
Publication date: 2012-09-19
Anticipated expiration: 2022-02-02

Abstract

The utility model relates to a compressor, in particular to a compressor without a speed-up mechanism. The compressor without the speed-up mechanism comprises a compressor mainframe and a drive motor and is characterized in that a rotation shaft of the drive motor and an impeller of the compressor are located on a same axis, and the rotation shaft is directly connected with the impeller of the compressor. According to the utility model, the novel motor is adopted to be directly connected with the drive compressor so as to directly drive the compressor without the speed-up mechanism, so that a series of defects of power loss, easily generated vibrations and the like of the speed-up mechanism are reduced, and the compressor without the speed-up mechanism is simple in structure, low in fault rate and simple to maintain.

Description

Compressor without speed increasing mechanism

Technical field

The utility model relates to a kind of compressor, especially a kind of compressor without speed increasing mechanism.

Background technique

Centrifugal compressor and dry screw compressor must be under high rotating speed effective pressurized gas; For satisfying operation and energy-conservation needs; The normal motor driving centrifugal compressor that adopts needs configuration one to overlap the speed-changing gear box of single output shaft or multi-output shaft between motor and compressor.Normally adopt asynchronous induction machine, be connected with gear-shift transmission through coupling, centrifugal compressor and dry screw compressor rated speed generally are higher than 5000rpm.Use speed increaser, rotating speed of motor is increased to required rotating speed, this design originates from Hesperian technology in last century, and reliability is high, and efficient is high, and pressurized gas does not have oil, and price is high, is a kind of high end compression machine, also is unique selection so far.But its price is high, the gear distress rate is higher, maintaining is difficult.

Summary of the invention

The purpose of the utility model be to provide a kind of simple in structure, rate of fault is lower, maintaining is simply without the compressor of speed increasing mechanism.

For reaching above purpose; The technological scheme that the utility model adopted is: should comprise compressor host and drive motor without the compressor of speed increasing mechanism; It is characterized in that: the rotating shaft of said drive motor and compressor impeller are positioned on the same axis, and rotating shaft directly links to each other with compressor impeller.

Said drive motor is a brushless direct current motor.

The utility model adopts brshless DC motor, replaces induction motor, the synchronous motor of common induction motor, synchronous motor and frequency control of motor speed.Adopt novel motor direct connection Driven Compressor; Because the high speed performance of brshless DC motor is good, be fit to dry screw compressor and centrifugal compressor, directly Driven Compressor; Do not need speed increasing mechanism, the power loss and the speed increasing mechanism that have reduced speed increasing mechanism are prone to produce a series of disadvantages such as vibration.

Because the low speed torque of brshless DC motor is big, can save belt transmission and speed reducer, just make compressor direct connection driving easily, the result improves efficiency and reduces unreliable factor.Make compressor more reliable, more energy-conservation.Adopt the brshless DC motor system, set of systems becomes brshless DC motor+driver, and motor can directly use Ac or direct current.Simple in structure, rate of fault is low, maintaining is simple.

Description of drawings

Fig. 1 is an embodiment's of the utility model a structural representation.

Embodiment

As shown in Figure 1, said compressor without speed increasing mechanism comprises compressor host 4 and drive motor 1, and said drive motor 1 is a brushless direct current motor.The rotating shaft 3 and the compressor impeller 2 of said drive motor 1 are positioned on the same axis, and rotating shaft 3 directly links to each other with compressor impeller 2.The rotating shaft 3 of drive motor 1 can be simultaneously as the rotating shaft of impeller 2, and promptly drive motor 1 has common rotating shaft with impeller 2.As another embodiment of the utility model, when drive motor 1 and impeller 2 have independent rotating shaft separately, also can link together through the rotating shaft of coupling with drive motor 1 and impeller 2.

The utility model has two kinds of designs, and a kind of is that single stage compressor as shown in Figure 1 directly drives design, and another kind is the above compressor design of two-stage and two-stage.The above compressor design of two-stage and two-stage adopts divides the motoring design, and each stage compressor is provided with a drive motor, the same Fig. 1 of its structure.Adopt incorporate servo-drive controller for a plurality of drive motors, guarantee each stage compressor synchronous operation.

Claims

1. without the compressor of speed increasing mechanism; Comprise compressor host (4) and drive motor (1); It is characterized in that: the rotating shaft (3) of said drive motor (1) is positioned on the same axis with compressor impeller (2), and rotating shaft (3) directly links to each other with compressor impeller (2).

2. the compressor without speed increasing mechanism according to claim 1 is characterized in that: said drive motor (1) is a brushless direct current motor.