CN104405637A - Vacuum scroll compressor - Google Patents
Vacuum scroll compressor Download PDFInfo
- Publication number
- CN104405637A CN104405637A CN201410796064.7A CN201410796064A CN104405637A CN 104405637 A CN104405637 A CN 104405637A CN 201410796064 A CN201410796064 A CN 201410796064A CN 104405637 A CN104405637 A CN 104405637A
- Authority
- CN
- China
- Prior art keywords
- bent axle
- bearing
- eccentric shaft
- orbiting scroll
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2220/00—Application
- F04C2220/10—Vacuum
Abstract
The invention relates to a vacuum scroll compressor, in particular to a vacuum scroll compressor which doesn't use a cross ring to limit rotation of a removable scroll pan. The vacuum scroll compressor comprises the removable scroll pan and a crankshaft penetrating through the base, wherein the crankshaft comprises a front crankshaft section and a rear crankshaft section, the front crankshaft section has preset crankshaft eccentricity relative to the rear crankshaft section, the removable scroll pan is mounted at the front end of the crankshaft and connected with the base through an eccentric shaft, and the eccentricity and the rotation angle vector of an eccentric shaft section connected with the removable scroll pan relative to the eccentric shaft section connected with the base are equal to the preset crankshaft eccentricity and the rotation angle vector of the front crankshaft section relative to the rear crankshaft section. According to the vacuum scroll compressor, equipment vibration and noise are reduced, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of swirl vacuum compressor, particularly a kind of swirl vacuum compressor without the need to being rotated by partition ring restriction movable orbiting scroll.
Background technique
Vacuum compressor has the function of vacuum pump and compressor concurrently, and swirl vacuum compressor coils to coordinate by movable orbiting scroll and quiet whirlpool to form compression chamber, by the change of compression chamber volume, and the function realizing compression or vacuumize.Existing swirl vacuum compressor structure, comprise casing, casing top arranges a pedestal, quiet whirlpool dish is arranged on pedestal top, is usually fixedly connected with pedestal, movable orbiting scroll be arranged on quiet whirlpool coil below and above pedestal, and coil with quiet whirlpool and complement each other to form compression chamber, connect a bent axle in the middle part of movable orbiting scroll, bent axle lower end is driven by motor, drives movable orbiting scroll by bent axle.Crank rotation is followed for avoiding movable orbiting scroll, make movable orbiting scroll translation, existing mode is between movable orbiting scroll and pedestal, arrange a cross slip-ring simultaneously, and cross slip-ring can slide along a direction by opposite base, movable orbiting scroll can vertically slide by cross slip-ring relatively, thus achieves above-mentioned functions.
But the deficiency of existing mode is, no matter be movable orbiting scroll or cross slip-ring, it is all sliding movement, and the motion mode slided rubs large on the one hand, and particularly when oil starvation, friction is generated heat rapidly, causes frictional force to strengthen further, the damage aggravation of parts; Noise is high on the other hand, and particularly when vacuum compressor runs up, the reciprocal high frequency motion of movable orbiting scroll and cross slip-ring causes the vibration of equipment, produces noise very large.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved by this invention is: provide a kind of swirl vacuum compressor, reduces vibration equipment and noise, improves working life.
Swirl vacuum compressor of the present invention, comprise movable orbiting scroll and the bent axle through pedestal, bent axle comprises bent axle leading portion and bent axle back segment, bent axle leading portion has default crankshaft eccentric degree relative to bent axle back segment, movable orbiting scroll is arranged on crankshaft front end, movable orbiting scroll is connected by eccentric shaft with pedestal, and the degree of eccentricity of the eccentric shaft part be relatively connected with pedestal with the eccentric shaft part that movable orbiting scroll connects, angle of rotation vector and the crankshaft eccentric degree preset, bent axle leading portion are identical relative to the angle of rotation vector of bent axle back segment.
During crank rotation, the center line of bent axle leading portion flexing axle back segment rotates, simultaneously, bent axle leading portion drives the center line of movable orbiting scroll center flexing axle back segment to rotate, due to the degree of eccentricity of eccentric shaft and angle of rotation vector consistent with bent axle, in crankshaft rotating process, eccentric shaft and bent axle keep synchronous axial system, on movable orbiting scroll, any point is constant all the time to the line angle of movable orbiting scroll central point, as constant all the time to the angle in the line relative level face of central point with the tie point of eccentric shaft on movable orbiting scroll, namely movable orbiting scroll can only carry out translation, can not rotate, thus meet that movable orbiting scroll coils relative to quiet whirlpool rotate requirement.
Described eccentric shaft is made up of the pre-eccentric axle connected successively, link arm, rear eccentric shaft, and pre-eccentric axle is connected with movable orbiting scroll, and corresponding movable orbiting scroll arranges the first mounting hole, and rear eccentric shaft is connected with pedestal, and corresponding pedestal arranges the second mounting hole.
Described eccentric shaft is at least one group.
Described eccentric shaft is three groups, and corresponding first mounting hole arranges three, and bent axle leading portion center line is evenly arranged relatively, and corresponding second mounting hole arranges three, and bent axle back segment center line is evenly arranged relatively.
Described pre-eccentric axle is arranged in the first mounting hole by clutch shaft bearing, and rear eccentric shaft is arranged in the second mounting hole by the second bearing.
Be provided with through oil-through hole in described eccentric shaft, in pedestal, be provided with the oil hole communicated with the second mounting hole.
Described movable orbiting scroll back is provided with annular boss, and bent axle leading portion is arranged in annular boss by the 3rd bearing, and the 3rd bearing is NA needle bearing.
Described movable orbiting scroll is provided with the positioning disk of locating eccentric shaft towards the one side of pedestal.
Described crankshaft front end connects frontal plane bearing, frontal plane bearing is arranged on bottom annular boss, and back plane bearing is fixed at susceptor through-holes place, and back plane bearing is made up of retainer, needle roller components, retainer arranges step towards frontal plane bearing side, and needle roller components is fixed on this step.
Described susceptor through-holes is built with the 4th bearing, and the 4th bearing is arranged on front side of back plane bearing, and its rear end is against retainer step place, and the 4th bearing is NUP roller bearing.
Compared with prior art, the beneficial effect that the present invention has is:
1, this swirl vacuum compressor eliminates the Placement of cross slip-ring, adopt eccentric shaft that pedestal is connected with movable orbiting scroll, synchronously rotated by the relative bent axle of eccentric shaft, realize movable orbiting scroll relatively quiet whirlpool dish and do translation, original sliding friction mode is changed to the rolling friction of the relative movable orbiting scroll of eccentric shaft and pedestal, friction factor and frictional force reduce greatly, and vibration and the noise of equipment decline to a great extent thereupon, and the working life of equipment improves more than 10 times.
2, original cross slip-ring Placement, be slidably connected owing to adopting, its lubrication system is extremely important, a large amount of lubricant oil is needed to lubricate connection part during work, once oil starvation, temperature will raise rapidly, cause the damage of link, adopt eccentric shaft Placement, reduce the requirement to lubrication system, oil filling amount is little, and maintenance workload reduces, can realize without oily transmission, greatly improve special trade.
3, original movable orbiting scroll, cross slip-ring and pedestal are face contact, in the course of the work, Relative friction is each other very large, motor needs to consume more power to overcome this part resistance, after adopting eccentric shaft to connect, pedestal and movable orbiting scroll spaced apart, each other without Relative friction, resistance significantly reduces, and energy consumption of electrical machinery saves more than 30%.
4, when installed, due to can not observe movable orbiting scroll the back side under to the situation in pedestal, eccentric shaft easily misplaces, causing installing unsuccessfully, by arranging positioning disk at the movable orbiting scroll back side, eccentric shaft being positioned, eccentric shaft is made to be stabilized in the first mounting hole, convenient installation.
5, by arranging frontal plane bearing, avoiding bent axle to deviate from by annular boss, reducing equipment failure rate, by back plane bearing restriction bent axle axial float; Back plane bearing is fixed on pedestal, and its retainer arranges step, and by the barrier effect of step, restriction needle roller components and the 4th bearing play backward, and then restriction bent axle play backward, when ensureing compression, bent axle normally works, and reduces equipment noise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is eccentric shaft structure schematic diagram;
Fig. 3 is movable orbiting scroll and pedestal relative status schematic diagram in a rotation period.
In figure: 1, bent axle; 2, shaft seal room; 3, bearing housing; 4, pedestal; 5, movable orbiting scroll; 6, frontal plane bearing; 7, the 3rd bearing; 8, the first mounting hole; 9, clutch shaft bearing; 10, eccentric shaft; 11, the second bearing; 12, the second mounting hole; 13, oil hole; 14, the 4th bearing; 15, back plane bearing; 16, counterweight; 17, positioning disk; 18, quiet whirlpool dish; 101, bent axle leading portion; 102, bent axle back segment; 501, annular boss; 1001, pre-eccentric axle; 1002, link arm; 1003, rear eccentric shaft; 1004, oil-through hole.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
As shown in Figure 1, this swirl vacuum compressor, comprises quiet whirlpool dish 18, movable orbiting scroll 5 and the bent axle 1 through pedestal 4, and quiet whirlpool dish 18, movable orbiting scroll 5 complement each other to form active chamber.Bent axle 1 comprises bent axle leading portion 101 and bent axle back segment 102, crankshaft front end 101 is connected by crank throw with bent axle back segment 102, bent axle leading portion 101 relatively bent axle back segment 102 has default crankshaft eccentric degree, movable orbiting scroll 5 is arranged on bent axle 1 front end, movable orbiting scroll 5 is connected by eccentric shaft 10 with pedestal 4, and the degree of eccentricity of the eccentric shaft part be relatively connected with pedestal 4 with the eccentric shaft part that movable orbiting scroll 5 connects, angle of rotation vector and the crankshaft eccentric degree preset, bent axle leading portion are identical relative to the angle of rotation vector of bent axle back segment.Wherein, identical the referring to of angle of rotation vector is being X-axis with horizontal axis, and be in the rectangular coordinate system of Y-axis with pivotal axis, the angle direction of angle of rotation and angle value are all equal.
Eccentric shaft 10 is made up of the pre-eccentric axle 1001 connected successively, link arm 1002, rear eccentric shaft 1003, pre-eccentric axle 1001 is connected with movable orbiting scroll 5, corresponding movable orbiting scroll 5 arranges the first mounting hole 8, and rear eccentric shaft 1003 is connected with pedestal 4, and corresponding pedestal 4 arranges the second mounting hole 12.Be provided with through oil-through hole 1004 in eccentric shaft 10, for lubrication, and be provided with the oil hole 13 communicated with the second mounting hole 12 in pedestal 4, for charging-up lubricant oil.Eccentric shaft 10 is at least one group, for obtaining preferably effect and reasonably manufacture cost, preferably arranges three groups.Corresponding first mounting hole 8 arranges three, and bent axle leading portion 101 center line is evenly arranged relatively, and corresponding second mounting hole 12 arranges three, and bent axle back segment 102 center line is evenly arranged relatively.
Pre-eccentric axle 1001 is arranged in the first mounting hole 8 by clutch shaft bearing 9, and rear eccentric shaft 1003 is arranged in the second mounting hole 12 by the second bearing 11, and clutch shaft bearing 9, second bearing 11 is NU bearing.
Movable orbiting scroll 5 back is provided with annular boss 501, bent axle leading portion 101 is arranged in annular boss 501 by the 3rd bearing 7,3rd bearing 7 is NA needle bearing, NA needle bearing has certain restriction effect to bent axle 1 play, bent axle 1 front end connects frontal plane bearing 6, frontal plane bearing 6 is arranged on bottom annular boss 501, back plane bearing 15 is fixed in pedestal 4 through hole along bent axle 1, back plane bearing 15 is made up of retainer 1501, needle roller components 1502, retainer 1501 arranges step towards frontal plane bearing 6 side, and needle roller components 1502 is fixed on this step.Pedestal 4 through hole is arranged on front side of back plane bearing 15 built with the 4th bearing the 14, four bearing 14, and its rear end is against retainer 1501 step place.The crank throw of bent axle 1 is arranged between the 3rd bearing 7 and the 4th bearing 14, and the 4th bearing 14 is NUP roller bearing.
Movable orbiting scroll 5 is provided with the positioning disk 17 of locating eccentric shaft 10 towards the one side of pedestal 4, when installed, due to can not observe movable orbiting scroll 5 the back side under situation in pedestal 4, eccentric shaft 10 easily misplaces, causing installing unsuccessfully, by arranging positioning disk 17 at movable orbiting scroll 5 back side, eccentric shaft 10 being positioned, eccentric shaft 10 is made to be stabilized in the first mounting hole 8, convenient installation.
Bent axle 1 after back plane bearing 15 is equipped with counterweight 16, for eliminating the eccentric force of movable orbiting scroll 5, on rear side of pedestal 4, setting gradually bearing housing 3, shaft seal room 2, in bearing housing 3, being provided with the NU roller bearing coordinated with bent axle 1, seal arrangement is provided with, the rear end connecting drive device of bent axle 1 in shaft seal room 2.
As shown in Figure 3, during work, a is original state, along with the rotation of bent axle 1, as schemed b, first crank throw goes to most bottom-right location, front bent 1001 handles of each eccentric shaft 10 go to most bottom-right location simultaneously, as schemed c, crank throw goes to most upper-right position, the pre-eccentric axle 1001 of each eccentric shaft 10 goes to most upper-right position simultaneously, as schemed d, crank throw goes to uppermost position, the pre-eccentric axle 1001 of each eccentric shaft 10 goes to uppermost position simultaneously, as schemed e, crank throw goes to most top-left position, the pre-eccentric axle 1001 of each eccentric shaft 10 goes to most top-left position simultaneously, as schemed f, crank throw goes to most lower left position, the pre-eccentric axle 1001 of each eccentric shaft 10 goes to lowermost position simultaneously and puts, finally, as schemed a, crank throw goes to bottom position, the pre-eccentric axle 1001 of each eccentric shaft 10 goes to bottom position simultaneously, movable orbiting scroll 5 completes the action of one-period, and remain translation.
Claims (10)
1. a swirl vacuum compressor, comprise movable orbiting scroll (5) and the bent axle (1) through pedestal (4), bent axle (1) comprises bent axle leading portion (101) and bent axle back segment (102), bent axle leading portion (101) relatively bent axle back segment (102) has default crankshaft eccentric degree, movable orbiting scroll (5) is arranged on bent axle (1) front end, it is characterized in that: movable orbiting scroll (5) is connected by eccentric shaft (10) with pedestal (4), the degree of eccentricity of the eccentric shaft part that with pedestal (4) be connected relative to the eccentric shaft part that movable orbiting scroll (5) connects, angle of rotation vector and the crankshaft eccentric degree preset, bent axle leading portion is identical relative to the angle of rotation vector of bent axle back segment.
2. swirl vacuum compressor according to claim 1, it is characterized in that: described eccentric shaft (10) is made up of the pre-eccentric axle (1001) connected successively, link arm (1002), rear eccentric shaft (1003), pre-eccentric axle (1001) is connected with movable orbiting scroll (5), corresponding movable orbiting scroll (5) arranges the first mounting hole (8), rear eccentric shaft (1003) is connected with pedestal (4), and corresponding pedestal (4) arranges the second mounting hole (12).
3. swirl vacuum compressor according to claim 2, is characterized in that: described eccentric shaft (10) is at least one group.
4. swirl vacuum compressor according to claim 3, it is characterized in that: described eccentric shaft (10) is three groups, corresponding first mounting hole (8) arranges three, and bent axle leading portion (101) center line is evenly arranged relatively, corresponding second mounting hole (12) arranges three, and bent axle back segment (102) center line is evenly arranged relatively.
5. swirl vacuum compressor according to claim 2, it is characterized in that: described pre-eccentric axle (1001) is arranged in the first mounting hole (8) by clutch shaft bearing (9), and rear eccentric shaft (1003) is arranged in the second mounting hole (12) by the second bearing (11).
6. swirl vacuum compressor according to claim 2, it is characterized in that: in described eccentric shaft (10), be provided with through oil-through hole (1004), in pedestal (4), be provided with the oil hole (13) communicated with the second mounting hole (12).
7. swirl vacuum compressor according to claim 1, it is characterized in that: described movable orbiting scroll (5) back is provided with annular boss (501), bent axle leading portion (101) is arranged in annular boss (501) by the 3rd bearing (7), and the 3rd bearing (7) is NA needle bearing.
8. swirl vacuum compressor according to claim 1, is characterized in that: described movable orbiting scroll (5) is provided with the positioning disk (17) of locating eccentric shaft (10) towards the one side of pedestal (4).
9. swirl vacuum compressor according to claim 1, it is characterized in that: described bent axle (1) front end connects frontal plane bearing (6), frontal plane bearing (6) is arranged on annular boss (501) bottom, back plane bearing (15) is fixed in pedestal (4) through hole, back plane bearing (15) is made up of retainer (1501), needle roller components (1502), retainer (1501) arranges step towards frontal plane bearing (6) side, and needle roller components (1502) is fixed on this step.
10. swirl vacuum compressor according to claim 9, it is characterized in that: described pedestal (4) through hole is built with the 4th bearing (14), 4th bearing (14) is arranged on back plane bearing (15) front side, its rear end is against retainer (1501) step place, and the 4th bearing (14) is NUP roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796064.7A CN104405637A (en) | 2014-12-18 | 2014-12-18 | Vacuum scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796064.7A CN104405637A (en) | 2014-12-18 | 2014-12-18 | Vacuum scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104405637A true CN104405637A (en) | 2015-03-11 |
Family
ID=52643291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410796064.7A Pending CN104405637A (en) | 2014-12-18 | 2014-12-18 | Vacuum scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104405637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3686430A1 (en) * | 2019-01-24 | 2020-07-29 | MAN Energy Solutions SE | System and method for evacuating a process room |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141883A (en) * | 1989-10-27 | 1991-06-17 | Hitachi Ltd | Scroll compressor |
| US20050002816A1 (en) * | 2001-12-03 | 2005-01-06 | Toyoji Okayama | Power generating device |
| CN101876341A (en) * | 2010-05-24 | 2010-11-03 | 杭州钱江压缩机有限公司 | Plane bearing of compressor crankshaft |
| CN202391685U (en) * | 2011-12-20 | 2012-08-22 | 杭州麦迪冷暖设备有限公司 | Compressor crank shaft rotating device |
| CN204327497U (en) * | 2014-12-18 | 2015-05-13 | 淄博昊驰泵业有限公司 | Swirl vacuum compressor |
-
2014
- 2014-12-18 CN CN201410796064.7A patent/CN104405637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141883A (en) * | 1989-10-27 | 1991-06-17 | Hitachi Ltd | Scroll compressor |
| US20050002816A1 (en) * | 2001-12-03 | 2005-01-06 | Toyoji Okayama | Power generating device |
| CN101876341A (en) * | 2010-05-24 | 2010-11-03 | 杭州钱江压缩机有限公司 | Plane bearing of compressor crankshaft |
| CN202391685U (en) * | 2011-12-20 | 2012-08-22 | 杭州麦迪冷暖设备有限公司 | Compressor crank shaft rotating device |
| CN204327497U (en) * | 2014-12-18 | 2015-05-13 | 淄博昊驰泵业有限公司 | Swirl vacuum compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3686430A1 (en) * | 2019-01-24 | 2020-07-29 | MAN Energy Solutions SE | System and method for evacuating a process room |
| CN111502955A (en) * | 2019-01-24 | 2020-08-07 | 曼恩能源方案有限公司 | System and method for evacuating a process space |
| US11473573B2 (en) | 2019-01-24 | 2022-10-18 | Man Energy Solutions Se | System and method for evacuating a process space |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
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| RJ01 | Rejection of invention patent application after publication |