CN202673687U - Integral type sliding vane rotary vacuum pump - Google Patents
Integral type sliding vane rotary vacuum pump Download PDFInfo
- Publication number
- CN202673687U CN202673687U CN 201220032895 CN201220032895U CN202673687U CN 202673687 U CN202673687 U CN 202673687U CN 201220032895 CN201220032895 CN 201220032895 CN 201220032895 U CN201220032895 U CN 201220032895U CN 202673687 U CN202673687 U CN 202673687U
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- mesospore
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- vacuum pump
- rotor
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Abstract
The utility model discloses an integral type sliding vane rotary vacuum pump, and belongs to a vacuum acquisition device. The integral type sliding vane rotary vacuum pump mainly comprises a motor, a support frame, a front cover plate, a stator, a rotor, a rotary vane, a cover plate, a middle wall of double-stage, a post-stator and a post-stator. The stator and the cover plate or the middle wall are made into a whole, or the stator, the middle wall and the post-stator are made into a whole. An inner hole of an one-piece stator is made into a double-circle arc, an oil storage tank is arranged on the inner end face, the outer end face of the one-piece stator is located through double locating pins, sealing grooves are arranged for sealing and the like, the various technical problems of huge leakage rate, poor coaxial degree of parts, low vacuum degree and being difficult in installing and maintaining and the like are solved. The integral type sliding vane rotary vacuum pump is suitable to all vacuum acquisition industries.
Description
Technical field
The utility model belongs to the rotary-vane vaccum pump technical field, particularly relates to the stator structure of small-sized sliding vane rotary vacuum pump.
Background technique
The small-sized sliding vane rotary vacuum pump that existing market is sold, single-stage formed the again increase mesospore of twin-stage, rear class stator, rear class rotor etc. by motor, front shroud, stator, cover plate, rotor, blade etc.Because number of components is many, the plane contact sealing surface is many, leaks easily, easily loosening, displacement, affect the fit up gap between stator, rotor, affect degree of vacuum, because number of components is many, assembling, difficult in maintenance, be difficult to guarantee the coaxality of various parts, the card machine phenomenon occurs easily, affect operational reliability.
The model utility content
The purpose of this utility model is: provide a kind of and can reduce sealing surface, reduce and leak, get rid of displacement, stablize the fit up gap, the integrated type blade vacuum pump of gas clean-up.Gas clean-up refers to reduce gas pressure, below identical.
The technical solution of the utility model is: integrated type blade vacuum pump, mainly comprise motor, support, front shroud, stator, rotor, blade, cover plate, and the mesospore of two-stage vacuum pump, rear class stator, rear class rotor, it is characterized in that stator and cover plate or mesospore make an one-piece stator, or stator, mesospore and rear class stator system stator in aggregates.
Described vacuum pump, the endoporus that it is characterized in that the one or both ends of one-piece stator is made the structural type of two circular arcs.Stator is contacted with rotor line be transformed into face contact, further gas clean-up.
Described vacuum pump, the one or both ends that it is characterized in that one-piece stator are with single-locating pin or two locating stud positioning form and with it supporting part combination.Make correlated parts keep good coaxality.
Described vacuum pump is characterized in that in stator, mesospore and the rear class stator system stator in aggregates, the stator relief opening is connected by a bending or straight casting air flue with rear class stator intakeport, or machined straight air flue connects.Make stator, mesospore and rear class stator system stator structure in aggregates compact, avoid in unfavorable factors such as stator surface boring and port closings.
Described vacuum pump is characterized in that in the scope that the interior edge face of one-piece stator contacts with rotor the circular or circular-arc oil storage tank concentric with rotor being set.Make the pump oil that capacity is arranged in the whole gap, avoid Leakage Gas to affect the raising of degree of vacuum to air-breathing district.
Described vacuum pump is characterized in that the whole circumference in one or both ends of one-piece stator arranges circular seal groove, or 1/4 circle place arranges seal groove at upper semi-circle or in the intakeport outside.Make the sealing surface of each part junction avoid leaking, avoid affecting degree of vacuum.
Described vacuum pump, the mesospore entity part that it is characterized in that the one-piece stator that stator, mesospore and rear class stator are made are the mobile mesospores of engineering plastics material movably.Make the rotor end-face gap of twin-stage even or adjustable, improve operational reliability.
Described vacuum pump is characterized in that in one-piece stator and the endoporus that rotor shaft cooperates spiral or vertical or horizontal oil storage tank being set.Make rotor reliable in one-piece stator.
Described vacuum pump is characterized in that one-piece stator is provided with the pressure lubrication oil duct.Make lubricant oil stablize, be transported to enough lubricated district.
Described vacuum pump is characterized in that one-piece stator is provided with intakeport and the relief opening of casting.The unfavorable factor of bringing for fear of machining.
The beneficial effects of the utility model are: each seal clearance of this pump guarantees by accurate machining, get rid of personal factor, installation precision is stable, reliable, and leakage rate reduces, and degree of vacuum raising, cost, beautiful shape, installation and maintenance are convenient, product and quality scale improve.
Description of drawings
Fig. 1 is the stator of single-stage and the schematic representation that cover plate is made an one-piece stator.
Fig. 2 is the stator of prime and the schematic representation that mesospore is made an one-piece stator.
Fig. 3 is the schematic representation of stator, mesospore and the rear class stator system stator in aggregates of prime.
Fig. 4 is that the endoporus of one-piece stator is the schematic representation of the structural type of two circular arcs.
Fig. 5 is the schematic representation of removable mesospore.
Fig. 6 is the schematic representation that stator faces is located with two locating studs.
Fig. 7 is the air flue schematic representation that the straight front and back level of machining is communicated with.
Fig. 8 is casting air flue schematic representation crooked in the one-piece stator.
Fig. 9 is the circular oil storage tank schematic representation of one-piece stator interior edge face.
Figure 10 is that the one-piece stator endoporus arranges spiral oil storage tank schematic representation.
Figure 11 is the seal groove schematic representation in the intakeport outside.
Specific embodiments
Below in conjunction with accompanying drawing the utility model is further described.
With reference to the accompanying drawings 1, this pump is single-stage rotary vane vacuum pump, and 1 is front shroud, and 2 is rotor, and 3 is blade, and 4 is cover plate, and 5 is stator.Commercially available vacuum pump cover plate 4 and stator 5 is two parts at present, by screw in compression together.Because process equipment is advanced, level of processing improves now, and machining tool is accurate, cover plate 4 and 5 liang of parts of stator can be cast an integral body, and shape, and is and makes an integral body, as shown in Figure 1.This structure has been removed the sealing surface of two part joints, former sealing surface is the plane contact sealing surface, always there is flatness error, also having leakage in a small amount exists, will eliminate this leakage after making an integral body, will gas clean-up, this structure is because the time processing shaping, eliminated each endoporus coaxiality error, eliminated the error of perpendicularity of each plane and axis, make everywhere gap control in a certain rational scope, improve installation precision, improved operational reliability, also improved degree of vacuum.
With reference to the accompanying drawings 2, this pump is the prime part in the twin-stage sliding vane rotary vacuum pump, and 6 is support, and 7 is the prime rotor, and 8 is mesospore, and 9 is the stator of prime, with stator 9 cast solids of mesospore 8 with prime, and shapes, and namely makes one.In order to reduce cost, reduce part, the stator 9 of this pump can be directly installed on the support 6.Again single-stage pump shown in the accompanying drawing 1 is installed on the mesospore 8, the twin-stage sliding vane rotary vacuum pump.Effect, the effect of this structure and accompanying drawing 1 are identical.
With reference to the accompanying drawings 3, this pump is the twin-stage sliding vane rotary vacuum pump, and 10 is the stator of prime, 11 is that mesospore, 12 is that rear class stator, 13 is that rear class rotor, 14 is cover plate, the stator 10 of the prime of this pump, mesospore 11, rear class stator 12 cast solids, and shape, namely the three makes an integral body.The now application of processing center machine tool and universal, this all-in-one-piece stator is processed easily, and can guarantee corresponding machining accuracy.Effect, the effect of this structure and accompanying drawing 1 are identical.This pump body brief introduction, dislocation-free, beautiful shape, inner machining accuracy is high, performance is good, can improve the class of product.
With reference to the accompanying drawings 4, the radially fit up gap of the stator of sliding vane rotary vacuum pump and rotor is generally at 0.01 millimeter, and assembling is difficulty relatively, if increase the fit up gap, must increase the contact width of stator and rotor, make both line contacts be transformed into the face contact, at a stator inner hole orthodrome 16 of processing and a small arc-shaped 15, just can reach above-mentioned requirements, as long as the small arc-shaped arc length is more than 8 millimeters, the fit up gap just can increase and is twice, and this gives production in enormous quantities, the interworking assembling brings great benefit.No matter be the stator of single-stage, twin-stage, prime, rear class, all can according to said method process, the small arc-shaped 15 of twin-stage stator can be in same orientation, also can be in different orientation.
With reference to the accompanying drawings 5, for mesospore and the rotor that makes the twin-stage sliding vane rotary vacuum pump is more wear-resisting, and the processing of forward and backward level stator hole is simple, mesospore 20 can be designed to movably, is used with one-piece stator 17.In order to prevent because of problems such as form error, matching gaps, and a small amount of leakage that occurs, the form error at small arc surface 19 places particularly, one or several seal rings 18 can be set in its peripheral cooperation place, for mesospore movably can quench, the Wear-resistant Treatment such as nitrogenize, also can adopt wear-resisting engineering plastics, such as teflon (PTFE), polyether-ether-ketone (PEEK), polyimide (PI), polyphenylene sulfide (PPS).For economical with materials can be offered the transmission groove at mesospore 20 and rotor end-face non-contacting position.This mesospore 20 also can utilize artificial adjustment axial position to make the axial clearance of front and back level obtain a rational axial clearance.
With reference to the accompanying drawings 6, for make all-in-one- piece stator 5,9,10,12,17 and front shroud 1 or support 6 or cover plate 14 accurately install, need to locate with locating stud, namely at the relevant position of junction plane both sides part processing positioning pin hole 22, by single or two cylindrical positioning pins, two parts are accurately located again.Fastening by screw hole 21 with screw again.For all-in-one-piece various stators, also can adopt short boss, short screw to come fastening.
With reference to the accompanying drawings 7, for above-mentioned various two-stage pumps, in order to make the inner air flue of unitary stator easy to process, the prime relief opening can be set directly to the rear class intakeport, it is the rear class relief opening that the air flue 24,26 that straight prime relief opening 23 and rear class intakeport 25 be communicated with namely is set.
With reference to the accompanying drawings 8, at present because the casting the level rise, can make the loam core of high strength, low roughness, just can make of this loam core for air flue in this one-piece stator, air flue 29,30,31 can form crooked air flue, can connect prime stator relief opening 27 and rear class stator intakeport 32, the best that just can reach the forward and backward level in the two-stage pump connects.To intakeport 28,32 and relief opening 27 can utilize equally the loam core to finish casting, avoided being difficult to the operation of finishing with machining.
With reference to the accompanying drawings 9, various one-piece stator interior edge faces all can arrange circular oil storage tank 33, play the even distribution of oil in the end face, and the effect of trapped fuel oil storage, guarantee good end face oil seal state.Fig. 1 to Fig. 3 is seen in the section signal of this oil storage tank 33.
With reference to the accompanying drawings 10, on the endoporus 38 of one-piece stator, spiral chute 36 or transverse groove 37 are set, play oil-feed, trapped fuel effect, guarantee the operational reliability of pump, for the lubricant oil of capacity is provided, pressure lubrication oilhole 35 can be set, and oilhole 35 links to each other with 34, forms the pressure lubrication oil duct, and from external world's introducing lubricant oil, the oil that oilhole 35 flows out flow to everywhere through the gap of level rotor junction, front and back.
With reference to the accompanying drawings 11, on the exterior edge face 40 of one-piece stator, complete circular seal ring recess can be set, place and can solve the problem that this face leaks after seal ring compresses, can solve the demanding problem of planeness, roughness of this end face.In order to cut down finished cost, only can locate seal groove is set at upper semi-circle or at the intakeport outside 1/4 circle, such as seal groove 39.
Claims (10)
1. integrated type blade vacuum pump, mainly comprise motor, support, front shroud, stator, rotor, blade, cover plate, and the mesospore of two-stage vacuum pump, rear class stator, rear class rotor, it is characterized in that stator and cover plate or mesospore make an one-piece stator, or stator, mesospore and rear class stator system stator in aggregates.
2. vacuum pump according to claim 1 is characterized in that the endoporus of the one or both ends of one-piece stator makes the structural type of two circular arcs.
3. vacuum pump according to claim 1, the one or both ends that it is characterized in that one-piece stator are with single-locating pin or two locating stud positioning form and with it supporting part combination.
4. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that in stator, mesospore and the rear class stator system stator in aggregates, the stator relief opening is connected by a bending or straight casting air flue with rear class stator intakeport, or machined straight air flue connects.
5. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that in the scope that the interior edge face of one-piece stator contacts with rotor the circular or circular-arc oil storage tank concentric with rotor being set.
6. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that the whole circumference in one or both ends of one-piece stator arranges circular seal groove, or 1/4 circle place arranges seal groove at upper semi-circle or in the intakeport outside.
7. according to claim 1 and 2 or 3 described vacuum pumps, the mesospore entity part that it is characterized in that the one-piece stator that stator, mesospore and rear class stator are made is the mobile mesospore of engineering plastics material movably.
8. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that in one-piece stator and the endoporus that rotor shaft cooperates spiral or vertical or horizontal oil storage tank being set.
9. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that one-piece stator is provided with the pressure lubrication oil duct.
10. according to claim 1 and 2 or 3 described vacuum pumps, it is characterized in that one-piece stator is provided with intakeport and the relief opening of casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220032895 CN202673687U (en) | 2012-01-09 | 2012-01-09 | Integral type sliding vane rotary vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220032895 CN202673687U (en) | 2012-01-09 | 2012-01-09 | Integral type sliding vane rotary vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673687U true CN202673687U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220032895 Expired - Fee Related CN202673687U (en) | 2012-01-09 | 2012-01-09 | Integral type sliding vane rotary vacuum pump |
Country Status (1)
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| CN (1) | CN202673687U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195712A (en) * | 2012-01-09 | 2013-07-10 | 浙江振圣机电科技有限公司 | Integral type sliding-vane rotary vacuum pump |
| CN103498795A (en) * | 2013-10-08 | 2014-01-08 | 天津商业大学 | Single-machine and double-grade slide sheet type refrigeration compressor |
| CN104006590A (en) * | 2014-05-28 | 2014-08-27 | 浙江振圣机电科技有限公司 | Portable refrigerant recovery all-in-one machine with vacuum pump |
-
2012
- 2012-01-09 CN CN 201220032895 patent/CN202673687U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195712A (en) * | 2012-01-09 | 2013-07-10 | 浙江振圣机电科技有限公司 | Integral type sliding-vane rotary vacuum pump |
| CN103498795A (en) * | 2013-10-08 | 2014-01-08 | 天津商业大学 | Single-machine and double-grade slide sheet type refrigeration compressor |
| CN104006590A (en) * | 2014-05-28 | 2014-08-27 | 浙江振圣机电科技有限公司 | Portable refrigerant recovery all-in-one machine with vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20170109 |