CN201255115Y

CN201255115Y - Forced lubrication type high-speed sliding valve vacuum pump

Info

Publication number: CN201255115Y
Application number: CNU2008201641421U
Authority: CN
Inventors: 蔡海涛; 陈加明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-18
Filing date: 2008-09-18
Publication date: 2009-06-10
Anticipated expiration: 2018-09-18

Abstract

The utility model belongs to the field of a vacuum pump, which in particular relates to a forced lubrication-type high-speed slide valve vacuum pump. The rotation rate of the prior slide valve vacuum pump is low; the energy dissipation when the prior slide valve vacuum pump works is large; large space is occupied when the prior slide valve vacuum pump is used; and the manufacturing cost is high. The utility model provides the forced lubrication-type high-speed slide valve vacuum pump, which is compact in structure and small in volume, capable of working without failure at high rotary speed and dissipates low energy while the forced lubrication-type high-speed slide valve vacuum pump works. The forced lubrication-type high-speed slide valve vacuum pump comprises a pump body. A slide valve located through an eccentric rotor, a basic shaft and a slide valve rack is arranged in the working chamber of the pump. A plurality of antifriction bearings is arranged corresponding to the basic shaft. A pump bonnet with a vent is arranged on the pump body; an air evacuation valve communicating with the vent is arranged in the pump body. An oil return hole is arranged on the basic shaft. Axial distribution guide oil grooves are arranged on the internal and external surfaces of the slide valve rack. An oil tank is arranged in the pump body. The oil tank is connected with a small oil pump with an oil distributor. The oil distributor feeds lubricating oil to the antifriction bearings, the rotary oil seal of the basic shaft, the slide valve rack, a slide valve rotary pair and the eccentric rotor through oil pipelines.

Description

Forced lubrication type high-speed sliding valve vacuum pump

[affiliated technical field]

The utility model belongs to field of vacuum, particularly a kind of forced lubrication type high-speed sliding valve vacuum pump.

[background technique]

Sliding valve vacuum pump is a kind of of mechanical type vacuum pump, is usually used in containing in the abominable mixed-gas environment such as dust, steam working.Existing sliding valve vacuum pump is many, and the slide valve pump rotating speed is low by the belt pulley motor that is in transmission connection, and the work energy consumption is big; The vacuum pump volume is big, takes up an area of space many manufacture costs height during use.

[model utility content]

The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the technological deficiency that existing sliding valve vacuum pump exists, a kind of forced lubrication type high-speed sliding valve vacuum pump is provided, described vacuum pump structure compactness, volume are small and exquisite, can be under high rotating speed proper functioning and work energy consumption low.

For achieving the above object, the utility model is taked following technological scheme: forced lubrication type high-speed sliding valve vacuum pump, the pump housing that comprises band active chamber and suction port, be equipped with in the active chamber and pass through eccentric rotor, the guiding valve of main shaft and guiding valve guide rail location, corresponding main shaft is equipped with plurality of rolling bearings on the pump housing, the pump cover of band relief opening is housed on the pump housing, be provided with the outlet valve that is communicated with relief opening in the pump housing, it is characterized in that described main shaft is provided with spill port, in the guiding valve guide rail, all have the oil guide slot of axial distribution on the outer surface, be provided with fuel tank in the pump in the pump housing, described fuel tank connects the little oil pump of a band oil distributor, and described oil distributor is transported to rolling bearing by some transport pipe with lubricant oil, main axis rotation sealing oil sealing, guiding valve guide rail and guiding valve revolute pair, eccentric rotor and guiding valve revolute pair.Lubricating oil path work utilizes pump oil to make lubricant oil revolute pair in the vacuum pump is done compulsory lubricating as shown in Figure 3, and the existing vacuum-packed function of pumping fluid has lubricating functions again, and the gas meltage is very little.Can reduce the intensification of each revolute pair when high speed rotating is worked with the pump oil lubrication, insufficient lubrication such as avoid killing, make vacuum pump can cooperate the high rotating speed of motor output, significantly improve pumping speed, what vacuum pump can be done under the effect same is littler, compacter; Directly connect the more traditional belt wheel of motor by coupling and connect electric-motor-driving, it is little that the slide valve pump time spent is taken up an area of the space, the transmission efficiency height, and energy consumption is low.Good lubricated the utility model that makes can directly connect the motor proper functioning that rotating speed is 3000 rev/mins or 1500 rev/mins by coupling.The effect of oil guide slot is to make things convenient for pump oil between the guiding valve guide rail and the pump housing, flow between guiding valve guide rail and the guiding valve, realizes the full and uniform of guiding valve guide rail and pump housing revolute pair, guiding valve guide rail and guiding valve revolute pair lubricated.

Guiding valve described in the utility model, guiding valve guide rail and eccentric rotor are Cuprum alloy and make.The parts that the more traditional cast iron of parts of use Cuprum alloy manufacturing gets have better intensity and anti-fatigue performance, and longer service life can fully satisfy the need of work that vacuum pump and motor direct connection run up.

Be connected with a filter between fuel tank and the little oil pump in the pump described in the utility model.The effect of filter is the various unfavorable lubricated harmful matter in the elimination pump oil, guarantees good lubricated and oil sealing effect, improves to vacuumize quality.

Outlet valve described in the utility model connects a cyclone separating gas oil separator, the suction tude of deaerator and outlet valve butt joint, and the steam outlet pipe of deaerator is connected with relief opening, and the oil outlet tube of deaerator connects fuel tank in the pump.By deaerator the mixed oil and gas that comes out in the vacuum pump outlet valve is separated, reused after pump oil is reclaimed, avoid pump oil to rush down befouling environment, energy-conserving and environment-protective outward with exhaust.

Deaerator described in the utility model is a cyclone separating gas oil separator.The concrete structure of cyclone separating gas oil separator is 200720114763.4 cyclone separating gas oil separator in the patent No. of first to file referring to the claimant.Compare with the conventional gas and oil separator, the cyclone separating gas oil separator working service is convenient, little, the good separating effect of gas-flow resistance.

The utility model carries out pressure lubrication by lubricating oil path is set to each revolute pair in the sliding valve vacuum pump in vacuum pump, cooperate Cuprum alloy to make the mechanical property of parts raising parts such as guiding valve, the sliding valve vacuum pump of making can be connected work under the high rotating speed by coupling and motor, significantly improve pumping speed, effectively dwindle the vacuum pump volume, vacuum pump is high working efficiency under high rotating speed, and energy consumption is low; Use the band velocity ratio with the conventional spool valves pump, sliding valve vacuum pump described in the utility model can be connected transmission with motor by coupling, uses the occupation of land space little, applied widely.

[description of drawings]

Fig. 1: the utility model structural representation.

A-A of Fig. 2: Fig. 1 is to sectional view.

Fig. 3: pressure lubrication oil circuit workflow diagram.

Among the figure: 1. motor, 2. coupling, 3. main shaft, the 4. pump housing, 5. pump cover, 6. vortex type separating gas oil separator, 7. relief opening, 8. oil distributor, 9. little oil pump, 10. fuel tank, 12. outlet valves, 13. suction ports, 14. oil guide slot, 15. guiding valve guide rails, 16. bases, 17. guiding valves, 18. eccentric rotors, 19. motor connection seats, 20. rolling bearings in filter, 11. pumps.

[embodiment]

Below in conjunction with description of drawings and embodiment the utility model is described further.

Shown in Fig. 1～2, forced lubrication type high-speed sliding valve vacuum pump, the pump housing 4 that comprises band active chamber and suction port 13, corresponding main shaft is equipped with plurality of rolling bearings 20 on the pump housing, the pump cover 5 of band relief opening 7 is housed on the pump housing 4, guiding valve 17 by eccentric rotor 18, main shaft 3 and guiding valve guide rail 15 location is housed in the active chamber

All have the oil guide slot 14 of axial distribution on the described guiding valve guide rail 15 inside and outside surfaces, main shaft is provided with spill port, and described guiding valve 17, guiding valve guide rail 15 and eccentric rotor 18 are Cuprum alloy and make;

Be provided with fuel tank 11 in the pump in the pump housing, fuel tank connects the little oil pump 9 of a band oil distributor 8, also be connected with a filter 10 between fuel tank 11 and the little oil pump 9 in the pump, also be provided with the outlet valve 12 that is communicated with relief opening in the pump housing, described outlet valve 12 connects a cyclone separating gas oil separator 6 (described deaerator sees patent formerly for details), the suction tude of deaerator and outlet valve butt joint, the steam outlet pipe of deaerator is connected with relief opening 7, the oil outlet tube of described deaerator connects fuel tank 11 in the pump, and described oil distributor is transported to rolling bearing 20 by some transport pipe with lubricant oil, main axis rotation sealing oil sealing, guiding valve guide rail and guiding valve revolute pair, eccentric rotor and guiding valve revolute pair.

During use, the utility model slide valve pump and motor 1 are separately fixed on the motor coupling seat 19, carry out transmission by coupling 2 between motor and the slide valve pump, and the coupling two ends are connected on motor output shaft and the slide valve pump main shaft.Pressure lubrication oil circuit workflow as shown in Figure 3, the pump of fuel tank oil filters the back through filter and flows into little oil pump in the pump, and little oil pump is not transported to rolling bearing 20, main axis rotation sealing oil sealing, guiding valve guide rail and guiding valve revolute pair, eccentric rotor and guiding valve revolute pair by oil distributor and some transport pipe with the pump oil content.

Fuel tank in the pump is flowed back to by the spill port on the main shaft in the intact back of pump oil lubrication that is transported to main axis rotation sealing oil sealing; Pump oil is lubricated to guiding valve guide rail and guiding valve revolute pair, pass through revolute pair gap and oil guide slot after eccentric rotor and the guiding valve revolute pair, conflux and guiding valve and pump housing revolute pair are lubricated into active chamber, being transported to the pump oil lubrication of rolling bearing also confluxes after intact and into active chamber guiding valve and pump housing revolute pair is lubricated, part in these pump oil flows between the guiding valve guide rail and the pump housing lubricated to guiding valve guide rail and pump housing revolute pair with sliding valve movement, a part of then pump oil stops therewith, all the other pump oil mix the formation mixed oil and gas with the gas that sliding valve vacuum pump extracts, enter outlet valve, then through cyclone separating gas oil separator running (working procedure of cyclone separating gas oil separator sees claimant's patent formerly for details), isolated pump oil is in oil outlet tube is got back to pump in the fuel tank, gas is through steam outlet pipe, relief opening is discharged, and pressure lubrication and so forth circulates.

Claims

1, forced lubrication type high-speed sliding valve vacuum pump, the pump housing (4) that comprises band active chamber and suction port (13), be equipped with in the active chamber by eccentric rotor (18), the guiding valve (17) of main shaft (3) and guiding valve guide rail (15) location, corresponding main shaft is equipped with plurality of rolling bearings (20) on the pump housing, the pump cover (5) of band relief opening (7) is housed on the pump housing (4), be provided with the outlet valve (12) that is communicated with relief opening in the pump housing, it is characterized in that described main shaft is provided with spill port, in the guiding valve guide rail (15), all have the oil guide slot (14) of axial distribution on the outer surface, be provided with fuel tank (11) in the pump in the pump housing, described fuel tank connects the little oil pump (9) of a band oil distributor (8), and described oil distributor is transported to rolling bearing (20) by some transport pipe with lubricant oil, main axis rotation sealing oil sealing, guiding valve guide rail and guiding valve revolute pair, eccentric rotor and guiding valve revolute pair.

2, forced lubrication type high-speed sliding valve vacuum pump according to claim 1 is characterized in that described guiding valve (17), guiding valve guide rail (15) and eccentric rotor (18) are Cuprum alloy and make.

3, forced lubrication type high-speed sliding valve vacuum pump according to claim 1 and 2 is characterized in that being connected with a filter (10) between interior fuel tank (11) of described pump and the little oil pump (9).

4, forced lubrication type high-speed sliding valve vacuum pump according to claim 1 and 2, it is characterized in that described outlet valve (12) connects a cyclone separating gas oil separator (6), the suction tude of deaerator and outlet valve butt joint, the steam outlet pipe of deaerator is connected with relief opening (7), and the oil outlet tube of deaerator connects fuel tank (11) in the pump.

5, forced lubrication type high-speed sliding valve vacuum pump according to claim 3, it is characterized in that described outlet valve (12) connects a cyclone separating gas oil separator (6), the suction tude of deaerator and outlet valve butt joint, the steam outlet pipe of deaerator is connected with relief opening (7), and the oil outlet tube of deaerator connects fuel tank (11) in the pump.