CN2096658U

CN2096658U - Vane pump

Info

Publication number: CN2096658U
Application number: CN 91218176
Authority: CN
Inventors: 赵熙
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-17
Filing date: 1991-07-17
Publication date: 1992-02-19

Abstract

The utility model relates to a vane pump for transporting paper sheets and sheets making use of attracting force and pressure of air or producing products, which is formed by that inner rotors which are provided with vanes, external rotors which are mutual decenter with the inner rotors, a pump body, an end cover, a press cap, an air cell, an air nozzle, bottom plates and a motor which is connected with the core axle of the inner rotor are assembled together. The external rotors are arranged on the round annular shaft bearings of both ends of the pump body. Spring seats are arranged below the vanes which slide in the slide ways of the surfaces of the inner rotors. After the motor is started, the inner rotors drive the vanes, and the vanes drive the external rotors; the inner rotors, the vanes and the external rotors rotate together, air is absorbed and exhausted with the telescopic motion of the vanes. The utility model reduces frictional heat, dust and noise, extending the service life of machines.

Description

Vane pump

The utility model relates to a kind of vane pump of using by suction and pressure conveyance of sheets, thin plate or the production product of air.

Existing vane pump, be to utilize the internal rotor that blade is housed, with its mutually eccentric cylindric stator in rotate, under the stopping of stator inner wall, the centrifugal force that produces when utilizing internal rotor to rotate makes blade fore and aft motion repeatedly in the blade groove of internal rotor, between the end cap at blade, stator, internal rotor and two ends, form the swept volume that several increase and decrease repeatedly, thereby air is sucked and discharges, so that use in producing.This device, because after the machinery starting, blade edge clashes into repeatedly on stator inner wall and rubs, and can produce a large amount of dust, frictional heat and noise, thus shorten mechanical working life, be unfavorable for staff's health.

The purpose of this utility model is that a kind of improved vane pump will be provided, and it both can give full play to the function as vane pump, can reduce dust, frictional heat and noise that machinery starting back produces again greatly.

The purpose of this utility model is achieved in that this vane pump is on the basis of original device, employing is installed in the stator that external rotor on the pump housing two terminal circle annular bearings replaces existing vane pump, and under the blade that in the inner rotor face sliding-groove, slides, be provided with spring seat, behind motor starting, drive blade by internal rotor, blade is under spring action, supportting external rotor and rotating together, original static friction is being changed over dyanainic friction, and reach the purpose of above-mentioned minimizing dust, frictional heat and noise.

The noise that the utility model has reduced the dust that produces in the machine operation, frictional heat greatly and produced because of blade bump and friction stator inner wall has improved working environment, helps the healthy of people, has prolonged mechanical working life.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 is that vane pump internal structure master looks schematic representation.

Fig. 2 is that schematic representation is looked on a vane pump internal structure left side.

Fig. 3 is blade and spring seat schematic representation.

Below in conjunction with accompanying drawing, describe CONSTRUCTED SPECIFICATION of the present utility model and working condition thereof in detail.

With reference to Fig. 1～3: air chamber 2, the gas that the utility model is connected with the pump housing by the internal rotor 7 that blade 6 is housed, the pump housing 3, end cap 9, pressure cap 18, with screw thread chews 1, base plate 10 and the motor (not shown) that is connected with the mandrel 14 of internal rotor 7 are constituted.The pump housing 3 all is fixed on the base plate 10 with screw 13 with motor, the two ends of the pump housing 3 are provided with circular bearing 4, on the interior ring of bearing 4, external rotor 5 cylindraceous is installed, the center of circle of external rotor 5 and being installed between the center of circle of internal rotor 7 of external rotor inside, be provided with eccentric distance e, among the figure 19,20, be respectively the shaft axis of internal rotor 7 and external rotor 5; Internal rotor 7 is installed on the thrust ball bearing 15 and radial ball bearing 16 on the pump housing, makes the two ends of internal rotor 7 and end cap 9 keep certain intervals and along its shaft axis rotation freely; Blade in vertical chute on the embedding internal rotor 76 times, be provided with spring seat, this spring seat is by batten 8, folding spring 12, bracer 11 constitutes, the two ends of folding spring 12 are separately fixed on batten 13 and the bracer 11, batten 13 is positioned at sliding-groove bottom bracer 11 and then directly withstands on the blade 6, behind motor starting, drive blade 6 rotations by internal rotor 7, blade 6 is under spring and centrifugal action, the blade outer rim is close to the inwall of external rotor 5, be subjected to the restriction of external rotor 5 inwalls, blade 6 drives external rotor 5 again in the reciprocal fore and aft motion and rotates together in blade groove, so internal rotor 7, external rotor 5, the swept volume of the several airtight continuous variation that blade 6 and two ends form is constantly carried out air-breathing and is calmed the anger, respectively by air chamber 2, gas chews 1, form power, the task of finishing the work.

The utility model pump housing material uses the spheroidal graphite cast iron manufacturing, and internal rotor and external rotor then are processed into No. 45 steel, in addition, and because of the earth to the utmost has reduced frictional heat, so blade can be processed into the nylon 1010 molding and forming or with sheet material.

Claims

1, a kind of vane pump, air chamber 2, the gas that is connected with the pump housing by the internal rotor 7 that blade 6 is housed, the pump housing 3, end cap 9, pressure cap 18, with screw thread chew 1, base plate 10 and the motor that is connected with the mandrel 14 of internal rotor 7 are constituted, and it is characterized in that:

1) two ends of the pump housing 3 are provided with circular bearing 4, on the interior ring of bearing 4, external rotor 5 cylindraceous are installed, and the center of circle of external rotor 5 and being installed between the center of circle of internal rotor 7 of external rotor inside is provided with eccentric distance e;

2) blade in the vertical chute on the embedding internal rotor 7 is 6 times, is provided with spring seat.

2, vane pump according to claim 1, it is characterized in that the spring seat under the described blade 6, be made of batten 13, folding spring 12, bracer 11, the two ends of folding spring 12 are separately fixed on batten 13 and the bracer 11, and batten 13 is positioned at sliding-groove bottom bracer 11 and then directly withstands on the blade 6.