CN2219973Y

CN2219973Y - Blade type vacuum pump

Info

Publication number: CN2219973Y
Application number: CN 95207706
Authority: CN
Inventors: 陈时云; 潘佐焕; 陈炳虎; 陈翔桐
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-28
Filing date: 1995-03-28
Publication date: 1996-02-14
Anticipated expiration: 2005-03-28

Abstract

The utility model relates to a blade type vacuum pump, comprising a blade pump, an electric motor and a lubricating system, wherein, an oil box in the lubricating system is installed at the end surface of the blade pump; an oil feed pipe, an oil return pipe, and an exhaust pipe in the blade pump are distributed in the pump case of the blade pump; the exhaust gas discharged from the blade pump firstly together with the return oil enters the oil box through the oil return pipe and is discharged out the pump through the exhaust pipe. The design makes the structure more compact than the well-known blade type vacuum pumps, so the utility model is more suitable for a micro vacuum packer, making the type of a vacuum packer micromation.

Description

Vane-type vacuum pump

The utility model relates to a kind of vane-type vacuum pump, particularly a kind of vane-type vacuum pump that is used on the miniature vacuum package machine.

The parts that constitute vane-type vacuum pump have vane pump, motor and the moving link in vane pump that the lubrication system of lubricant oil is provided, this lubrication system is made up of fuel tank, oil feed line and return line, because this fuel tank is a split setting with vane pump, the oil feed line and the return line that connect fuel tank and vane pump just need certain length, and be the exposure formula, therefore, it is not compact that known vane-type vacuum pump structurally shows, and causes the type of miniature vacuum package machine to be difficult to further dwindle yet.

The purpose of this utility model provides a kind of vane-type vacuum pump of compact structure.

Solve scheme of the present utility model and be the end face that fuel tank in the lubrication system is installed in vane pump, the outlet pipe of oil feed line, return line and vane pump is laid in the pump case of vane pump, wherein the remittance hydraulic fluid port of return line is opened in the radial position of vane pump pump chamber, and outlet pipe is linked up with return line in fuel tank.

Further illustrate detailed content of the present utility model below in conjunction with drawings and Examples.

Fig. 1: structural drawing of the present utility model;

The side view of Fig. 2: Fig. 1;

The A of Fig. 3: Fig. 1 is to view.

Lubrication system is the vitals of vane-type vacuum pump, by fuel tank 1, in-line 2 and loop pipeline 3 are formed, vane pump is a critical piece of the present utility model, present embodiment adopts the vane pump of single-acting formula, by pump case, pump shaft 4, rotor 5, blade 6 and bearing 7 are formed, wherein form pump chamber 8 in the pump case, and be provided with exhaust pipe 9 and outlet pipe 10, pump shaft 4 is supported on the bearing 7, and with motor shaft 11 connections, be provided with oil sealing 12 in the outside of bearing 7, in the present embodiment, pump case is by rear end cover 13, the pump housing 14 and front cover 15 are formed, and rear end cover 13 is installed on the motor 16, and the utility model is installed in the end face of vane pump, oil feed line 2 with described fuel tank 1, the outlet pipe 10 of return line 3 and vane pump is laid in the pump case of vane pump, wherein the remittance hydraulic fluid port 17 of return line 3 is opened in the radial position of vane pump pump chamber 8, and outlet pipe 10 is linked up with return line 3 in fuel tank 1.In the present embodiment, the lubricant oil in the fuel tank 1 passes blade groove 18 then and enters fore bearing 7 at first entering blade groove 18 in rear bearing 7 and the rotor 5 through oil feed line 2 under the effect of draught head; Flow to lubricant oil in the pump chamber 8 after lubricated and scraped to converging hydraulic fluid port 17 by blade 6 and cross return line 3 with air communication and flow back to fuel tank 1, and the gas that is drawn out of enters outside outlet pipe 10 excavationg pumps through behind the fuel tank 1.For the ease of grasping the oil mass in the fuel tank 1, fuel tank 1 also is provided with oil ga(u)ge 19.

The vane-type vacuum pump of said structure, by side installation and fuel feeding, oil return and outlet pipe the laying pump case in of fuel tank at the vane pump end face, make structure reach compact, therefore, this vane-type vacuum pump is preferably to be used on the miniature vacuum package machine, and and then makes the type of vacuum package machine more become microminiaturized.

Claims

1, a kind of by vane pump, the vane-type vacuum pump that motor and lubrication system constitute, wherein vane pump is provided with exhaust pipe and outlet pipe, lubrication system is by fuel tank, oil feed line and return line are formed, it is characterized in that: described fuel tank (1) is installed in the end face of vane pump, oil feed line (2), the outlet pipe (10) of return line (3) and vane pump is laid in the pump case of vane pump, wherein the remittance hydraulic fluid port (17) of return line (3) is opened in the radial position of the pump chamber (8) of vane pump, and outlet pipe (10) same return line (3) in fuel tank (1) is linked up.