CN201810523U - Oil pumping structure applied to hermetically sealed compressor - Google Patents
Oil pumping structure applied to hermetically sealed compressor Download PDFInfo
- Publication number
- CN201810523U CN201810523U CN2010205453293U CN201020545329U CN201810523U CN 201810523 U CN201810523 U CN 201810523U CN 2010205453293 U CN2010205453293 U CN 2010205453293U CN 201020545329 U CN201020545329 U CN 201020545329U CN 201810523 U CN201810523 U CN 201810523U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- oil
- axle
- compressor
- fixed
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses an oil pumping structure applied to a hermetically sealed compressor. The oil pumping structure comprises a crank shaft, a stator, a rotor, a mandrel, a sleeve, an oil pool, a casing, a crank case and a fixed retainer, wherein the crank shaft, the rotor and the stator are fixed on the crank case respectively, and are maintained to be coaxial; one end of the sleeve is fixed on the lower end of the crank shaft or the rotor, and the other end of the sleeve is arranged in the oil pool; the mandrel is fixed in the sleeve through the fixed retainer, and a certain clearance is reserved between the mandrel and the sleeve; and spiral grooves the ends of which are connected with each other are arranged on the outer wall of the mandrel and the inner wall of the sleeve. The oil pumping structure disclosed by the utility model can work in a wide rotating speed range, and can control the amount of oil pumping according to different structures. The oil pumping structure is simple in structure, can be obtained based on the conventional oil pumping structure through simple machining and installing, is lower in cost, and is especially suitable for a variable frequency compressor.
Description
Technical field
The utility model relates to a kind of pump oil structure, and this structure is used for reciprocating type frequency conversion totally-enclosed compressor, as the oil pumping system of this type of compressor.
Background technique
For hermetically sealed compressor, oil pumping system mainly is responsible for bearing and other component that need lubricate such as connecting rod and the piston fuel feeding to compressor mechanical structure, its objective is it is lubricated, thereby the wearing and tearing when reducing each component operation, play the cooling action of compressor inside simultaneously, improve the working life of compressor movement reliability and prolongation compressor.The rotating speed of frequency-changeable compressor generally is controlled at about 1000 to 6000rpm, to obtain good refrigeration.Compressor rotary speed is in this excursion, can produce apparent in view influence to pump oil structure, the pump oil mass can change along with the size of rotating speed, under the slow-speed of revolution, the pump oil mass can be considerably less, so conventional pump oil structure can't satisfy the demand of each component to refrigeration oil under the slow-speed of revolution.Existing totally-enclosed fixed refrigeration compressor frequently generally adopts centrifugal pump oil structure.Centrifugal pump oil structure can both proper functioning during for 3000-3600rpm at rotating speed, and cost is lower, and therefore for the sealed type invariable frequency compressor, centrifugal pump oil structure is best pump oil structure.Conventional centrifugal pump oil structure comprises bent axle 1, rotor 2, fuel sucking pipe assembly 3, oil sump 4, housing 5, stator 6, crankcase 7 etc. as shown in Figure 1, Figure 2 shows that the structure of crankshaft group, comprises eccentric shaft 8, fuel sucking pipe 9 and blade 10.When invariable frequency compressor was worked, fuel sucking pipe assembly 3 was fixed on the underpart of bent axle 1, and the tapering part of fuel sucking pipe is immersed in the oil sump 4 always, and wherein the oil sump liquid level remains certain height.Stator 6 and rotor 2 formed the motor parts, and bent axle 1 rotates under the drive of motor, and the crankshaft group among this moment Fig. 2 rotates together and keeps a kind of identical rotating speed.In this case, the part that fuel sucking pipe assembly 3 is immersed in the oil sump 4 makes the passage of oil by bent axle 1 inside in the oil sump 4 by rotation, be pumped into eccentric shaft 8 places shown in Fig. 2, and finally make oil arrive inner each position that need lubricate of compressor by action of centrifugal force.The operating range of centrifugal pump is determined that by the difference between r among Fig. 1 and the R its formula is as follows:
W＝[(2*g*h)/(R
2-r
2)]
Wherein: h represents from the oil sump liquid level to the height that needs pump oil bearing;
G is a gravity accleration;
R be fuel sucking pipe than long radius;
R is the small radii of fuel sucking pipe;
W is an angular velocity;
The size that can get pump oil ability h by formula is that the difference by W and R and r determines that the difference of R and r needn't just can reach needed height very greatly under high rotating speed.But R just need could satisfy the fuel feeding demand very greatly under the slow-speed of revolution.As can be known from Fig. 1, R can not increase a lot, otherwise can influence the entire work process and the performance thereof of compressor.So under the slow-speed of revolution, particularly work as rotating speed below 1600rpm, refrigeration oil is difficult to pump from oil sump.Yet the minimum speed of frequency-changeable compressor is generally all below 1600rpm.Therefore under the slow-speed of revolution, this kind pump oil structure can't satisfy the compressor section component to lubricated needs, thereby can influence the stability and the working life of compressor operating, will also can produce very big influence to the noise reduction of compressor.
Meanwhile, the more employing single-volute pump oil of present inverter compressor structure, as shown in Figure 3, comprise bent axle 1, rotor 2, oil sump 4, housing 5, stator 6, crankcase 7, single-screw Oil sucking device 11 etc., this kind structure is about to original fuel sucking pipe and makes existing single-screw Oil sucking device into, its structure generally has two kinds, respectively as Fig. 4, shown in Figure 5.Oil sucking device shown in Figure 4 comprises axle and sleeve, and axle all has spiral, and sleeve does not have spiral chute.When the driven by motor crankshaft rotating, sleeve and bent axle together rotate, and axle spiral outer wall and sleeve lining keep certain clearance, oil can by sleeve lining and along the axle spiral chute to rising, for each component of compressor provide refrigeration oil.This kind structure can (about 1000rpm) can provide enough oil masses to compressor under the slow-speed of revolution, but (more than the 4000rpm) pump oil mass is obviously excessive under high rotating speed, has surpassed the normal demand amount of compressor and freeze oil.Oil sucking device shown in Figure 5 is that interior pipe does not have spiral, and sleeve lining is provided with spiral chute.During crankshaft rotating, drive sleeve rotation, and this moment, sleeve lining kept certain clearance with the axle outer wall by oil film, sleeve and axle formation relative movement, lubricant oil by the axle outer wall and along the spiral chute of sleeve lining to rising, for each component of compressor provide refrigeration oil.This kind structure (more than the 4000rpm) pump oil mass under high rotating speed is proper, and (about 1000rpm) pump oil mass is obviously on the low side under the slow-speed of revolution, is difficult to reach the requirement of compressor proper functioning.Because no matter the pump oil mass is on the low side or higher, all can the normal operation of compressor be exerted an influence, all can not reach optimization, and above two kinds of structures all can not be preferably according to actual conditions control pump oil mass.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of and can works in the speed range of broad, under the slow-speed of revolution, still can be compressor oil-supplying, can be according to different structure control pump oil mass, and simple in structure, the lower-cost pump oil structure that is applied to hermetically sealed compressor.
For addressing the above problem, the pump oil structure that the utility model is applied to hermetically sealed compressor comprises bent axle, stator, rotor, axle, sleeve, oil sump, housing, crankcase and fixed retainer, described bent axle, rotor and stator are individually fixed on the described crankcase, and keep with one heart, one end of described sleeve is fixed on described bent axle lower end or the described rotor, the other end places described oil sump, described axle is fixed in the described sleeve by fixed retainer, keep certain clearance between the two, the outer wall of described axle and the inwall of described sleeve are provided with the spiral groove that the end is connected mutually.
The above-mentioned pump oil structure that is applied to hermetically sealed compressor, the above spiral groove of described axle outer wall starts from the lower end of described axle, and the above spiral groove of described sleeve lining starts from the upper end of described sleeve.
The utility model, drives sleeve and rotates together when crankshaft rotating owing to adopted above-mentioned technical pattern, it is motionless that axle keeps under the effect of fixed retainer, thereby make both produce relative movement, the axle spiral groove has mechanical thrust to the rising of refrigeration oil, and pump oil ability strengthens.When oil arrives the spiral groove place of sleeve, descend apparent in view in the spiral groove place of sleeve thrust, the spiral groove of sleeve mainly play the guiding role to the rising of refrigeration oil, oil can continue along spiral toward rising, is other each component fuel feeding up to the crankshaft eccentric shaft place by centrifugal force, thus the stability when guaranteeing frequency-changeable compressor work and improve its service behaviour.The utility model pump oil structure can be worked in the speed range of broad, even (approximately 1000rpm) still can be compressor oil-supplying under the slow-speed of revolution, lubricated each component, and can be according to different structure control pump oil masses.The utility model is relatively simple for structure simultaneously, only needs just can finish by simple processing and installation on the basis of original pump oil structure, and cost is also lower, is particularly useful for frequency-changeable compressor.
Description of drawings
Fig. 1 is mounted in the schematic representation of the existing centrifugal pump oil structure of totally-enclosed compressor inside;
Fig. 2 is the structural representation of crankshaft group among Fig. 1;
Fig. 3 is the sectional view that existing frequency-changeable compressor pump oil structure is installed in totally-enclosed compressor;
Fig. 4 is a kind of structural representation of existing totally-enclosed frequency-changeable compressor pump oil structure;
Fig. 5 is the another kind of structural representation of existing totally-enclosed frequency-changeable compressor pump oil structure;
Fig. 6 is that the utility model pump oil structure is installed in the schematic representation on the frequency-changeable compressor;
Fig. 7 is the structure for amplifying schematic representation of double helix Oil sucking device among Fig. 6;
Fig. 8 is the structural representation of Fig. 7 central shaft;
Fig. 9 is the structural representation of Fig. 7 middle sleeve.
Embodiment
As shown in Figure 6, the utility model pump oil structure of being applied to the sealed refrigeration frequency-changeable compressor comprises: bent axle 1, rotor 2, double helix Oil sucking device 12, oil sump 4, housing 5, stator 6, crankcase 7 and fixed retainer 13.Bent axle 1, rotor 2, stator 6 are individually fixed on the crankcase 7, and keep with one heart, thereby can rotate together with identical rotating speed.Double helix Oil sucking device 12 comprises axle 14 and sleeve 16, and an end of its middle sleeve 16 is fixed in bent axle 1 lower end, and the other end is as in the oil sump 4; Axle 14 is fixed in the sleeve 16 by fixed retainer 13, keeps certain clearance between the two, and the oil film that forms in the gap helps to guarantee both coaxalitys.Both length is identical, and axle outer wall 14 has spiral groove with sleeve 16 inwalls, and originates in axle 14 lower ends and sleeve 16 upper ends respectively, and both helix length sums are the single tube length overall, can have good transition between two sections spirals.
When bent axle 1 rotation, drive sleeve 16 and rotate together, it is motionless that axle 14 keeps under the effect of fixed retainer 13, thereby make both produce relative movement.The spiral groove of axle 14 has the mechanical thrust effect to the rising of refrigeration oil at this moment, has strengthened the pump oil ability of oil pump greatly.Oil arrives the spiral groove place of sleeve 16, thrust descends apparent in view, but oil still can continue along spiral chute toward rising, and be other each component fuel feeding up to the crankshaft eccentric shaft place by centrifugal force, thus stability and its service behaviour of raising when guaranteeing frequency-changeable compressor work.The pump oil mass of this pump oil structure can be by changing axle 14 outer walls and sleeve 16 inwalls the width A of spiral groove and D, depth of groove B and E and between the two the gap control.Experimental result shows that the size of the width A of the spiral groove of axle 14 outer walls and sleeve 16 inwalls and the size of D and depth of groove B and E is directly proportional within the specific limits with the pump oil mass, and promptly the big more pump oil mass of the value of A, B, D, E is big more; Otherwise then the pump oil mass is more little.Axle 14 and sleeve 16 gap between the two then are inversely proportional to the pump oil mass within the specific limits, and promptly the big more pump oil mass in gap is more little; Otherwise then the pump oil mass is big more.Also exist apparent in view interaction effect between A and C, D and the F simultaneously.Simultaneously, the spiral of sleeve 16 can also suitably reduce supply capability, thereby avoids because of the excessive negative effect that the compressor operating performance is produced of oil pump pump oil mass under high speed (greater than 4000rpm).
Claims (2)
1. be applied to the pump oil structure of hermetically sealed compressor, it is characterized in that, it comprises bent axle, stator, rotor, axle, sleeve, oil sump, housing, crankcase and fixed retainer, described bent axle, rotor and stator are individually fixed on the described crankcase, and keep with one heart, one end of described sleeve is fixed on described bent axle lower end or the described rotor, the other end places described oil sump, described axle is fixed in the described sleeve by fixed retainer, keep certain clearance between the two, the outer wall of described axle and the inwall of described sleeve are provided with the spiral groove that the end is connected mutually.
2. the pump oil structure that is applied to hermetically sealed compressor as claimed in claim 1, it is characterized in that, the above spiral groove of described axle outer wall starts from the lower end of described axle, and the above spiral groove of described sleeve lining starts from the upper end of described sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205453293U CN201810523U (en) | 2010-09-27 | 2010-09-27 | Oil pumping structure applied to hermetically sealed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205453293U CN201810523U (en) | 2010-09-27 | 2010-09-27 | Oil pumping structure applied to hermetically sealed compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810523U true CN201810523U (en) | 2011-04-27 |
Family
ID=43893465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205453293U Expired - Lifetime CN201810523U (en) | 2010-09-27 | 2010-09-27 | Oil pumping structure applied to hermetically sealed compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810523U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943156A (en) * | 2010-09-27 | 2011-01-12 | 加西贝拉压缩机有限公司 | Pump oil structure applied to full-closed refrigeration compressor |
| CN111396319A (en) * | 2019-08-27 | 2020-07-10 | 加西贝拉压缩机有限公司 | Oil pumping structure for refrigerator compressor |
| CN112752904A (en) * | 2018-09-28 | 2021-05-04 | 思科普有限责任公司 | Lubricant extraction device for refrigerant compressor |
-
2010
- 2010-09-27 CN CN2010205453293U patent/CN201810523U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943156A (en) * | 2010-09-27 | 2011-01-12 | 加西贝拉压缩机有限公司 | Pump oil structure applied to full-closed refrigeration compressor |
| CN112752904A (en) * | 2018-09-28 | 2021-05-04 | 思科普有限责任公司 | Lubricant extraction device for refrigerant compressor |
| CN111396319A (en) * | 2019-08-27 | 2020-07-10 | 加西贝拉压缩机有限公司 | Oil pumping structure for refrigerator compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101943156B (en) | Pump oil structure applied to full-closed refrigeration compressor | |
| CN1034603C (en) | Oil pump for a variable speed hermetic compressor | |
| CN104612974B (en) | Rotary compressor | |
| CN202370792U (en) | Crankshaft applied to refrigeration compressor | |
| JP5514737B2 (en) | Oil pump for refrigeration compressor | |
| CN201909022U (en) | Waterwheel type lubricating device for pumping unit speed reducer | |
| CN201810523U (en) | Oil pumping structure applied to hermetically sealed compressor | |
| CN2931908Y (en) | Band axle | |
| CN201103677Y (en) | Scraping-free oil lubrication type speed reducer | |
| CN103189648B (en) | Comprise the hermetic compressor of oil suction component | |
| CN102720659A (en) | Oil suction device of refrigerator compressor | |
| KR101606066B1 (en) | Hermetic compressor | |
| CN103696966B (en) | A kind of self-oiling crankshaft and rotary compressor, air conditioner and heat pump water heater | |
| CN215410096U (en) | Axle main reducer owner awl bearing lubricating structure | |
| CN210769213U (en) | Oil pumping structure for compressor | |
| CN206889200U (en) | A kind of built-in type permanent-magnet double drive pump | |
| CN103758760B (en) | A kind of oil pumping device being suitable for compressor wide range rotating speed | |
| CN208816288U (en) | Crankshaft and frequency-changeable compressor | |
| CN203742998U (en) | Self-lubricating crankshaft as well as rotary compressor, air conditioner and heat pump water heater using same | |
| CN203670215U (en) | Oil pumping device applicable to wide rotating speed range of compressor | |
| CN1086447C (en) | Centrifugal oil pump for a variable speed hermetic compressor | |
| CN102900650A (en) | Oil pumping system, shaft for same and hermetic compressor comprising oil pumping system and/or shaft | |
| CN201687759U (en) | Oil slinger | |
| CN216589546U (en) | Low-wear high-rotating-speed high-lubrication crankshaft | |
| CN208702729U (en) | A kind of slinger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20130501 |
|
| RGAV | Abandon patent right to avoid regrant |