CN101737330B - Sealed structure of rolling piston compressor or engine - Google Patents

Sealed structure of rolling piston compressor or engine Download PDF

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Publication number
CN101737330B
CN101737330B CN 201010110332 CN201010110332A CN101737330B CN 101737330 B CN101737330 B CN 101737330B CN 201010110332 CN201010110332 CN 201010110332 CN 201010110332 A CN201010110332 A CN 201010110332A CN 101737330 B CN101737330 B CN 101737330B
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China
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slide block
rolling piston
machine oil
engine
gap
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Expired - Fee Related
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CN 201010110332
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CN101737330A (en
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侯双林
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HEBEI ELECTRIC POWER COMMISSIONING INSTITUDE
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hebei Electric Power Co Ltd
Hebei Electric Power Construction Adjustment Test Institute
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Abstract

本发明提供了一种滚动活塞压缩机或发动机密封结构,涉及滚动活塞压缩机和发动机技术领域。包括缸体、滑块,动力主轴上设有滑动偏心轮,滑动偏心轮外面设有滚套,其主要特征在于滑动偏心轮上设有径向滑槽,该径向滑槽和动力主轴两侧的滑面径向滑动配合;在动力主轴和径向滑槽的顶部间设有间隙,并设有导油结构将上述间隙和液压装置相连。本发明克服了已有技术之不足,具有原理独特、结构简洁紧凑、密封性能好的特点,可使压缩机或发动机效率有较大提高、且节能,使用灵活方便。可广泛应用于空气压缩机、空调、冰箱和滚动活塞发动机上。

Figure 201010110332

The invention provides a rolling piston compressor or engine sealing structure, which relates to the technical field of rolling piston compressors and engines. Including the cylinder block and slider, there is a sliding eccentric wheel on the power main shaft, and a rolling sleeve is arranged outside the sliding eccentric wheel. The sliding surface is radially sliding fit; there is a gap between the power spindle and the top of the radial chute, and an oil guide structure is provided to connect the above gap with the hydraulic device. The invention overcomes the shortcomings of the prior art, has the characteristics of unique principle, simple and compact structure, and good sealing performance, can greatly improve the efficiency of a compressor or an engine, save energy, and is flexible and convenient to use. It can be widely used in air compressors, air conditioners, refrigerators and rolling piston engines.

Figure 201010110332

Description

Rolling piston compressor or seal structure for engine
Technical field
The present invention relates to rolling piston compressor and technical field of engines.
Background technique
Rolling piston is applied in air compressor, air-conditioning, refrigerator and rolling piston motor, and its advantage is not make the piston rod of straight reciprocating motion; Its deficiency is the poor sealing performance of rolling piston mechanism, and the parts machining precision is high, and after the rolling piston component wear, the gap of expansion can't auto-compensation, the leakage that has further strengthened pressurized gas.So improve the structure of rolling piston, when reducing the parts machining precision, improve its sealability, thereby reduce energy consumption, improve its output function, be the key subjects of rolling piston research.
Summary of the invention
The purpose of this invention is to provide a kind of rolling piston compressor or seal structure for engine, it has the characteristics of principle uniqueness, compactness simple for structure, good seal performance, can make compressor or engine efficiency improve a lot, energy-conservation, flexible and convenient to use.Can be widely used on air compressor, air-conditioning, refrigerator and the rolling piston motor.
Main technical schemes of the present invention is: a kind of rolling piston compressor or seal structure for engine, comprise cylinder body, front end housing, back cylinder cover, slide block, power mainshaft is provided with slip eccentric, the slip eccentric outside is provided with roll sleeve, it is characterized in that slip eccentric is provided with radial groove, the sliding surface of this radial groove and power mainshaft both sides radially slides cooperation; Between the top of power mainshaft and radial groove, be provided with the gap, and be provided with oil guide structure with above-mentioned gap and hydraulic pressure installation connection.
Preferably be provided with eccentric shaft bearing between described slip eccentric and roll sleeve.
Described eccentric shaft bearing is preferably two, and the centre is provided with butterfly spring or spring, and the outer shroud of two eccentric shaft bearings is equipped with seal ring, forms the rolling piston end face seal.
Described oil guide structure can be: the one or both ends of power mainshaft are provided with the helix oil groove that all screws in to the centre, and this helix oil groove is communicated with above-mentioned gap and cylinder cap bearing machine oil hand-hole.
Can be provided with machine oil non-return flap snubber in the described gap, the one or both ends of machine oil non-return flap snubber are equipped with machine oil non-return flap.Power mainshaft is provided with the conocave plane, is equipped with gap on the shoulder at two ends, conocave plane above-mentioned gap is connected with the helix oil groove.
Described oil guide structure also can be: the oilhole at power mainshaft center and above-mentioned gap are communicated with, and power mainshaft is communicated with the oilhole at power mainshaft center with the oil-feed axle sleeve of annular oil groove by its radial hole, and oil-feed axle sleeve and hydraulic pressure installation are communicated with.
Described slide block is comprised of master slider and secondary slide block, be slidingly matched for the wedge-type tapered plane between master slider and secondary slide block, secondary slide block is compressed by sliding block spring, and secondary slide block is pressed on the master slider, reach between the outer side surface of master slider and secondary slide block and front end housing, back cylinder cover with cylinder body between be plane sealing and cooperate.Described slide block also can same prior art.
The present invention has outstanding beneficial effect: it has overcome the deficiency of prior art, finely solved that prior art is medium-term and long-term to be existed and an open question always, it has the characteristics of principle uniqueness, compactness simple for structure, good seal performance, compressor or engine efficiency are improved a lot and energy-conservation, flexible and convenient to use.Can be widely used on air compressor, air-conditioning, refrigerator and the rolling piston motor.
Be described further below in conjunction with drawings and Examples, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the plan structure schematic representation of one embodiment of the invention.
Fig. 2 is the A-A sectional structure schematic representation of Fig. 1.
Fig. 3 is the B-B sectional structure schematic representation of Fig. 1.
Fig. 4 is the perspective view of hydraulic pressure auto-compensation rotary-piston among Fig. 3.
Fig. 5 is that perspective view is amplified in the part at C position among Fig. 4.
Fig. 6 is the perspective view of the slide block among Fig. 3.
Number in the figure explanation: 1. front end housing, 11. cylinder cap machine oil hand-hole, 2. cylinder bodies, 21. suction port, 22. fixedly cylinder bolt hole, 3. back cylinder covers, 31. cylinder cap machine oil portals, 4. stationary cylinder bonnet bolt, 5. power mainshaft, (51. power mainshaft 5 both sides) sliding surface, 52. helix oil grooves, 53. oil passageways, 6. safety check, 61. pressurized gas outlet, 7. machine oil non-return flap, 8. slip eccentric, (81. slip eccentric) radial groove, 9. eccentric shaft bearing, 91. seal ring annular groove, 10. roll sleeves, 12. master slider, 13. secondary slide block, 14. sliding block springs, 15. cylinder cap bearings, 151. cylinder cap bearing machine oil hand-hole, 16. machine oil non-return flap snubber, 17. butterfly springs, 18. seal rings.
Embodiment
Referring to Fig. 1~Fig. 6, this rolling piston compressor or seal structure for engine, comprise cylinder body 2, front end housing 1, back cylinder cover 3, slide block, power mainshaft 5 is provided with slip eccentric 8, slip eccentric 8 outsides are provided with roll sleeve 10, be provided with radial groove 81 at slip eccentric 8, the sliding surface 51 of this radial groove 81 and power mainshaft 5 both sides radially slides cooperation; Between the top of power mainshaft 5 and radial groove 81, be provided with the gap, and be provided with oil guide structure above-mentioned gap is linked to each other with hydraulic pressure installation.10 of slip eccentric 8 and roll sleeves are provided with eccentric shaft bearing 9.Eccentric shaft bearing 9 is two, and the outer shroud that the centre is provided with 17, two eccentric shaft bearings 9 of butterfly spring is equipped with seal ring 18, forms the rolling piston end face seal.Oil guide structure is: the one or both ends of power mainshaft 5 are provided with the helix oil groove 52 that all screws in to the centre, and this helix oil groove 52 is communicated with above-mentioned gap and cylinder cap bearing machine oil hand-hole 151.Be provided with machine oil non-return flap snubber 16 in the described gap, the one or both ends of machine oil non-return flap snubber 16 are equipped with machine oil non-return flap 7.The effect of machine oil non-return flap snubber 16 is the distances that limit 7 displacements of machine oil non-return flap, guarantees that machine oil can in time enter when above-mentioned gap inner engine oil is discontented, and machine oil cannot oppositely flow out simultaneously.Power mainshaft 5 is provided with the conocave plane, is equipped with gap on the shoulder of one or both ends, conocave plane connection is connected in above-mentioned gap with the helix oil groove.Described slide block is comprised of master slider 12 and secondary slide block 13, and 13 of master slider 12 and secondary slide blocks be for the wedge-type tapered plane is slidingly matched, the outer side surface of master slider 12 and secondary slide block 13 and front end housing 1,3 of back cylinder covers and with cylinder body between be plane sealing and cooperate.
Power mainshaft 5 stage casings are provided with square neck, form the sliding surface 51 of power mainshaft 5 both sides, and there is helix oil groove 52 the axle one or both ends; Slip eccentric 8, slip eccentric are provided with radial groove 81; Machine oil non-return flap 7; Machine oil non-return flap snubber 16.By order illustrated, machine oil non-return flap 7, machine oil non-return flap snubber 16 are packed in the slip eccentric groove 81 during assembling, then slip eccentric 8 is ridden on the sliding surface 51 of square neck both sides, power mainshaft 5 stage casing.With oil passageway 53 on machine oil non-return flap 7 aiming axis.Then outside slip eccentric 8, put successively two eccentric shaft bearings 9, add a butterfly spring 17 between them, put at last roll sleeve 10.
Referring to Fig. 6, master slider 12 and secondary slide block 13 are combined into a rectangular shaped slider with its hypotenuse, and secondary slide block 13 must have sliding block spring 14 to compress, and secondary slide block 13 is pressed on the master slider 12.Spring can be arranged or without spring on the master slider 12.
Its working procedure is as follows: when power input shaft 5 circulation time of starting working that turns clockwise as shown, motion between screw thread oil passageway 52 and the cylinder cap bearing 14 produces squeezing action to machine oil, force machine oil through cylinder cap machine oil hand-hole 11, cylinder cap bearing machine oil hand-hole 151, screw thread oil passageway 52 and oil passageway 53, push machine oil non-return flap 7 open, enter and be full of between slip eccentric 8 and the axle 5 stage casing square necks 51, with slip eccentric 8 jack-up, force roll sleeve 10 and cylinder body 2 inwalls to be combined closely, reach the purpose of sealing.When a small amount of seepage of machine oil that occurs between the slip eccentric 8 and 51, when perhaps slip eccentric 8, eccentric shaft bearing 9 and roll sleeve 10 wore and tore, machine oil can be charged into by automatic makeup, reaches the purpose of sealing.When the machine oil between slip eccentric 8 and the axle 5 stage casing square necks 51 was subject to the external force extruding, the machine oil pusher oil return check valve lobe 7 of backflow was closed oil passageway 53.The outlet 31 of organic oil circulation on the back cylinder cover 3, also organic oil loop exit of same position place on the front end housing 1.
Master slider 12 and secondary slide block 13 form a rectangular shaped slider, under the compressing of 14 pairs of secondary slide blocks 13 of sliding block spring, produce lateral force by the contact inclined-plane between master slider 12 and the secondary slide block 13, and form sealing with front end housing 1 and back cylinder cover 3.
The eccentric shaft bearing 9 of two transition fit is housed in the roll sleeve 10, annular groove 91 is arranged on the eccentric shaft bearing 9, packing sealing ring 18 is housed in the annular groove.Between two eccentric shaft bearings 9 butterfly spring 17 is arranged, force two eccentric shaft bearings 9 and front end housing 1 and back cylinder cover 3 to form end face seal.
Illustrate: above-mentioned power mainshaft 5 can be the input shaft of compressor or the output shaft of motor.During enforcement, other structures of compressor or motor can same prior art, in this omission.

Claims (4)

1. a rolling piston compressor or seal structure for engine, comprise cylinder body (2), front end housing (1), back cylinder cover (3), slide block, power mainshaft (5) is provided with slip eccentric (8), slip eccentric (8) outside is provided with roll sleeve (10), it is characterized in that slip eccentric (8) is provided with radial groove (81), the sliding surface (51) of this radial groove (81) and power mainshaft (5) both sides radially slides cooperation; Between the top of power mainshaft (5) and radial groove (81), be provided with the gap; The one or both ends of power mainshaft (5) are provided with the helix oil groove (52) that all screws in to the centre, and this helix oil groove (52) is communicated with above-mentioned gap and cylinder cap bearing machine oil hand-hole (151); Be provided with machine oil non-return flap snubber (16) in the described gap, the one or both ends of machine oil non-return flap snubber (16) are equipped with machine oil non-return flap (7).
2. rolling piston compressor according to claim 1 or seal structure for engine is characterized in that being provided with eccentric shaft bearing (9) between described slip eccentric (8) and roll sleeve (10).
3. rolling piston compressor according to claim 1 or seal structure for engine, it is characterized in that described power mainshaft (5) is provided with the conocave plane, be equipped with gap on the shoulder at two ends, conocave plane above-mentioned gap is connected 52 with the helix oil groove) connect.
4. according to claim 1,2 or 3 described rolling piston compressor or seal structure for engines, it is characterized in that described slide block is comprised of master slider (12) and secondary slide block (13), be slidingly matched for the wedge-type tapered plane between master slider (12) and secondary slide block (13), secondary slide block (13) is compressed by sliding block spring (14), secondary slide block (13) is pressed on the master slider (12), reach between the outer side surface of master slider (12) and secondary slide block (13) and front end housing (1) and back cylinder cover (3) with cylinder body between be plane sealing and cooperate.
CN 201010110332 2010-02-10 2010-02-10 Sealed structure of rolling piston compressor or engine Expired - Fee Related CN101737330B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103591022B (en) * 2013-08-02 2016-08-17 西安交通大学 A kind of Slipper-type radial flexible compensation mechanism of rolling piston-like fluid machine
CN114382609B (en) * 2021-12-13 2024-08-16 天津大学 Reciprocating high-low pressure self-adaptive compensation sealing device
CN114688017A (en) * 2022-03-26 2022-07-01 吴艮华 Sliding vane type cam pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106952A (en) * 1984-11-13 1986-07-23 特库姆塞制品公司 The lubricating fitting of rotary compressor
CN2074383U (en) * 1990-07-07 1991-04-03 西安交通大学 Rotary-piston compressor
JP2007291886A (en) * 2006-04-21 2007-11-08 Toshiba Kyaria Kk Fluid machinery and refrigeration cycle equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2574363B2 (en) * 1988-02-08 1997-01-22 松下冷機株式会社 Rotary compressor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106952A (en) * 1984-11-13 1986-07-23 特库姆塞制品公司 The lubricating fitting of rotary compressor
CN2074383U (en) * 1990-07-07 1991-04-03 西安交通大学 Rotary-piston compressor
JP2007291886A (en) * 2006-04-21 2007-11-08 Toshiba Kyaria Kk Fluid machinery and refrigeration cycle equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP平1-203686A 1989.08.16

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