CN104141873A - Compressor oil pump structure with gear transmission and compressor - Google Patents

Compressor oil pump structure with gear transmission and compressor Download PDF

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Publication number
CN104141873A
CN104141873A CN201410356633.6A CN201410356633A CN104141873A CN 104141873 A CN104141873 A CN 104141873A CN 201410356633 A CN201410356633 A CN 201410356633A CN 104141873 A CN104141873 A CN 104141873A
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CN
China
Prior art keywords
oil pump
gear
compressor
cover plate
main
Prior art date
Application number
CN201410356633.6A
Other languages
Chinese (zh)
Inventor
陈宗华
周鹏
火盈飞
Original Assignee
三一能源重工有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三一能源重工有限公司 filed Critical 三一能源重工有限公司
Priority to CN201410356633.6A priority Critical patent/CN104141873A/en
Publication of CN104141873A publication Critical patent/CN104141873A/en

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Abstract

The invention discloses a compressor oil pump structure with gear transmission and a compressor. The compressor oil pump structure comprises a main oil pump, a cover plate and a main shaft, wherein a shaft of the main oil pump is connected with an oil pump driven gear through keys, the main shaft is sleeved with an oil pump driving gear, the oil pump driven gear is meshed with the oil pump driving gear, the main oil pump is in clearance fit with a straight port of the cover plate, the shaft of the main oil pump is inserted in an eccentric hole in the surface of the cover plate, the cover plate is connected with a box through an O-shaped ring, and the main shaft drives the oil pump driven gear by rotating the oil pump driving gear so as to control the main oil pump to work. According to the compressor oil pump structure with gear transmission, the function of connecting the main oil pump and the box is achieved due to the design of the cover plate of the oil pump; good leakproofness can be achieved due to use of the O-shaped ring; the whole oil pump structure is compact and simple, and facilitates assembly and maintenance.

Description

A kind of gear-driven oil pump structure of compressor and compressor

Technical field

The present invention relates to a kind of oil pump structure, relate in particular to the gear-driven oil pump structure of a kind of compressor and compressor.

Background technique

At present, the main oil pump fuel feeding of centrifugal compressor can drive driven gear by mainshaft gear, thereby drives the work of screw pump.Because of the demand of compact structure design, conventionally wait the gear structure of rotating speed transmission bigger than normal, affect the size of oil pump installation and structure, the present invention makes structure compacter by the design of eccentric oil pump cover plate, and cover plate carries sealing effect because of the design of spill port.

Chinese patent (CN202302667U) discloses a kind of compressor oil pump, and when compressor operating, the gear 21 being fixedly connected with bent axle drives the gear 20 being fixedly connected with gear oil pump shaft 22, thereby actuation gear oil pump 23 is worked.Simultaneously gear oil pump shaft 22 drives lubricating oil pump shaft to rotate, and makes lubricating oil pump 24 enter working state, the cylinder of compressor by lubricant pump through oil pipe and oil return check valve to oil injecting lubricating in cylinder.

But this structure needs gear oil pump to drive lubricating oil pump, complex structure, component are many and loaded down with trivial details; And be not suitable for the long-term running of centrifugal compressor, because lubricants capacity is limited; Also inconvenience is installed, and oil pump gear and gear shaft cannot install rear entirety assembling.

Summary of the invention

In view of this, the present invention proposes the gear-driven oil pump structure of a kind of compressor and compressor, and to solve above-mentioned compressor oil pump structure complexity, lubricants capacity is limited, assembles inconvenient problem.

For achieving the above object, technological scheme of the present invention is achieved in that

The gear-driven oil pump structure of a kind of compressor, comprise main oil pump, cover plate and main shaft, the axle of described main oil pump connects oil pump driven gear by key, on described main shaft, be arranged with oil pump actuation gear, described oil pump driven gear and the engagement of described oil pump driven gear, wherein, the straight mouthful Spielpassung of described main shaft pump and described cover plate, the axle of described main oil pump is inserted in the eccentric opening of described lid surface, described cover plate is connected with casing by O shape circle, described main shaft is by rotating described oil pump actuation gear, drive described oil pump driven gear simultaneously, control described main oil pump work.

The gear-driven oil pump structure of above-mentioned compressor, wherein, described main oil pump is fixed on described cover plate by screw, makes to install more firm.

The gear-driven oil pump structure of above-mentioned compressor, wherein, described cover plate and described main oil pump joint are provided with spill port, reach the object that reclaims lubricant oil.

The gear-driven oil pump structure of above-mentioned compressor, wherein, the axle opposing parallel of described main shaft and described main oil pump arranges, and be arranged in parallel and can make two gears better engage, and rotation is more stable relatively.

The gear-driven oil pump structure of above-mentioned compressor, wherein, described cover plate on described casing, makes to install more firm by described screw fastening.

The gear-driven oil pump structure of above-mentioned compressor, wherein, described casing and described cover plate joint are provided with C type chamfering, for described O shape circle is installed.

The gear-driven oil pump structure of above-mentioned compressor, wherein, described main oil pump and described cover plate joint have gap, and lubricant oil flows in gap, then flows back in casing by described spill port.

Also comprise a kind of compressor, comprise the gear-driven oil pump structure of compressor described in above-mentioned any one.

The present invention is owing to having adopted above-mentioned technology, and the good effect of generation is:

Thereby the present invention realizes by the design of oil pump cover plate the function that main oil pump is connected with casing; The use of enclosing by O shape can reach good sealability; Compact overall structure is easy, is beneficial to assembling and safeguards.

Brief description of the drawings

The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the structural representation of a kind of compressor oil pump in background technique;

Fig. 2 is the structural representation of the gear-driven oil pump structure of a kind of compressor of the present invention and compressor;

Fig. 3 is the side view of the gear-driven oil pump structure of a kind of compressor of the present invention and compressor;

Fig. 4 is the enlarged view at A place in Fig. 2;

Fig. 5 is the enlarged view at B place in Fig. 2.

1 main oil pump, 2 screws, 30 shape circles, 4 cover plates, 5 oil pump driven gears, 6 keys, 7 oil pump actuation gears, 8 main shafts, 9 casings, 10 spill ports, 11 gaps, 12C type chamfering, 20 gears, 21 gears, 22 oil pump shafts, 23 gear oil pumps, 24 lubricating oil pumps.

Embodiment

Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.

Embodiment one

Incorporated by reference to shown in Fig. 2 to Fig. 5, the gear-driven oil pump structure of a kind of compressor of the present invention, comprise main oil pump 1, cover plate 4 and main shaft, the axle of main oil pump 1 connects oil pump driven gear 5 by key 6, on main shaft, be arranged with oil pump actuation gear 7, oil pump driven gear 5 and oil pump driven gear 5 engage, wherein, 4 straight mouthfuls of Spielpassung of main shaft pump 1 and cover plate, make 4 one-tenth of main shaft pump 1 and cover plates as a whole, the axle of main oil pump 1 is inserted in the eccentric opening on cover plate 4 surfaces, cover plate eccentric setting, can reduce the physical dimension of compressor entirety, cover plate 4 is connected with casing 9 by O shape circle 3, the effect of O shape circle 3 is sealings, prevent that lubricant oil from spilling, main shaft 8 is by rotating oil pump actuation gear 7, drive oil pump driven gear 5 simultaneously, controlling main oil pump 1 works.

The present invention also has following mode of execution on the basis of the above, please continue referring to shown in Fig. 2 to Fig. 5,

In further embodiment of the present invention, main oil pump 1 is fixed on cover plate 4 by screw 2, makes installation more firm, and while being unlikely compressor operation, cover plate 4 separates with main oil pump 1.

In further embodiment of the present invention, cover plate 4 is provided with spill port 10 with main oil pump 1 joint, reaches the object that reclaims lubricant oil, and lubricant oil is back in casing by spill port 10.

In further embodiment of the present invention, the axle opposing parallel of main shaft and main oil pump 1 arranges, and be arranged in parallel and can make two gears better engage, and rotation is more stable relatively.

In further embodiment of the present invention, cover plate 4 is anchored on casing 9 by screw 2, makes to install more firm.

In further embodiment of the present invention, casing 9 is provided with C type chamfering 12 with cover plate 4 joints, and the large I of enclosing 3, C type chamfering 12 for O shape is installed is enclosed 3 diameter setting according to O shape.

In further embodiment of the present invention, main oil pump 1 has gap 11 with cover plate 4 joints, and lubricant oil flows in gap 11, then flows back in casing 9 by spill port 10.

User can further be familiar with characteristic of the present invention and function according to following explanation,

When compressor operating, main shaft 8 drives actuation gear 7, and power is delivered to oil pump driven gear 6, thereby drives main oil pump 1 to work; Cover plate 4 can seal with gear housing 9 by O shape circle 3, is being designed with spill port with main oil pump 1 counterface, thereby avoids oil from this leakage (as shown in the zoomed-in view of Fig. 5); In addition, limited because of space layout, the centre distance of oil pump gear design is fixed, and when cover plate 4 is installed with main oil pump 1, need realize by bias, the physical dimension that can reduce compressor entirety is set like this, as shown in Figure 3.

In embodiments of the invention, also comprise a kind of compressor, be provided with the gear-driven oil pump structure of compressor described above.Because the gear-driven oil pump structure of above-mentioned compressor has above-mentioned technique effect, therefore, the compressor that is provided with the gear-driven oil pump structure of this compressor also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.

In sum, thus the present invention realizes by the design of oil pump cover plate the function that main oil pump is connected with casing; The use of enclosing by O shape can reach good sealability; Can reduce the physical dimension of compressor entirety by eccentric setting, make the compact overall structure of compressor easy, be beneficial to assembling and safeguard.

Embodiment two

In the present embodiment, the basic structure of compressor is identical with embodiment one, and unique difference is, can fitting tight pad between cover plate and casing, be used for substituting the seal with O ring at C angle; Gear transmission is not limited only to wait rotating speed transmission, also can be used for main shaft speed change and drives operation of oil pump; Main oil pump is not only selected screw pump, also can replace with gear pump.Adopt these structures also can reach a kind of identical technique effect with embodiment, because embodiment is identical with embodiment one, be not repeated herein.

The foregoing is only preferred embodiment of the present invention; not thereby limit embodiments of the present invention and protection domain; to those skilled in the art; the scheme that being equal to of should recognizing that all utilizations specification of the present invention and diagramatic content done replaces and apparent variation obtains, all should be included in protection scope of the present invention.

Claims (8)

1. the gear-driven oil pump structure of compressor, comprise main oil pump (1), cover plate (4) and main shaft (8), the axle of described main oil pump (1) connects oil pump driven gear (5) by key (6), on described main shaft (8), be arranged with oil pump actuation gear (7), described oil pump driven gear (5) and described oil pump driven gear (5) engagement, it is characterized in that, the straight mouthful Spielpassung of described main shaft pump (1) and described cover plate (4), the axle of described main oil pump (1) is inserted in the eccentric opening on described cover plate (4) surface, described cover plate (4) is connected with casing (9) by O shape circle (3), described main shaft (8) is by rotating described oil pump actuation gear (7), drive described oil pump driven gear (5) simultaneously, control described main oil pump (1) work.
2. the gear-driven oil pump structure of compressor according to claim 1, is characterized in that, it is upper that described main oil pump (1) is fixed on described cover plate (4) by screw (2), makes to install more firm.
3. the gear-driven oil pump structure of compressor according to claim 1, is characterized in that, described cover plate (4) is provided with spill port (10) with described main oil pump (1) joint, reaches the object that reclaims lubricant oil.
4. the gear-driven oil pump structure of compressor according to claim 1, it is characterized in that, described main shaft (8) arranges with the axle opposing parallel of described main oil pump (1), be arranged in parallel and can make two gears better engage, and rotation is more stable relatively.
5. the gear-driven oil pump structure of compressor according to claim 1, is characterized in that, it is upper that described cover plate (4) is anchored on described casing (9) by described screw (2), makes to install more firm.
6. the gear-driven oil pump structure of compressor according to claim 1, it is characterized in that, described casing (9) is provided with C type chamfering (12) with described cover plate (4) joint, for described O shape circle (3) is installed.
7. the gear-driven oil pump structure of compressor according to claim 1, it is characterized in that, described main oil pump (1) has gap (11) with described cover plate (4) joint, lubricant oil flows in gap (11), then flows back in casing (9) by described spill port (10).
8. a compressor, comprises oil pump structure as gear-driven in compressor as described in any one in claim 1-7.
CN201410356633.6A 2014-07-24 2014-07-24 Compressor oil pump structure with gear transmission and compressor CN104141873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410356633.6A CN104141873A (en) 2014-07-24 2014-07-24 Compressor oil pump structure with gear transmission and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410356633.6A CN104141873A (en) 2014-07-24 2014-07-24 Compressor oil pump structure with gear transmission and compressor

Publications (1)

Publication Number Publication Date
CN104141873A true CN104141873A (en) 2014-11-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410356633.6A CN104141873A (en) 2014-07-24 2014-07-24 Compressor oil pump structure with gear transmission and compressor

Country Status (1)

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CN (1) CN104141873A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001295618A (en) * 2000-04-18 2001-10-26 Yamaha Motor Co Ltd Oil pump arrangement structure for internal combustion engine
US20040108169A1 (en) * 2002-12-10 2004-06-10 Dale Eschenburg Modular bearing cage with integrated lubrication pump
CN2799910Y (en) * 2004-03-05 2006-07-26 姜世英 Universal combined gear lubricating oil pump
KR100957685B1 (en) * 2009-10-09 2010-05-12 한갑준 Exhaust fan for lubricating oil storage tank
CN201902811U (en) * 2010-12-28 2011-07-20 杭州萧山东方液压件有限公司 Bidirectional lubricating pump
CN202302667U (en) * 2011-11-07 2012-07-04 重庆气体压缩机厂有限责任公司 Oil pump mechanism for compressor
CN203189999U (en) * 2013-04-22 2013-09-11 浙江三工汽车零部件有限公司 Oil pump
CN203231064U (en) * 2013-04-17 2013-10-09 浙江三工汽车零部件有限公司 Oil pump with dust shield

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001295618A (en) * 2000-04-18 2001-10-26 Yamaha Motor Co Ltd Oil pump arrangement structure for internal combustion engine
US20040108169A1 (en) * 2002-12-10 2004-06-10 Dale Eschenburg Modular bearing cage with integrated lubrication pump
CN2799910Y (en) * 2004-03-05 2006-07-26 姜世英 Universal combined gear lubricating oil pump
KR100957685B1 (en) * 2009-10-09 2010-05-12 한갑준 Exhaust fan for lubricating oil storage tank
CN201902811U (en) * 2010-12-28 2011-07-20 杭州萧山东方液压件有限公司 Bidirectional lubricating pump
CN202302667U (en) * 2011-11-07 2012-07-04 重庆气体压缩机厂有限责任公司 Oil pump mechanism for compressor
CN203231064U (en) * 2013-04-17 2013-10-09 浙江三工汽车零部件有限公司 Oil pump with dust shield
CN203189999U (en) * 2013-04-22 2013-09-11 浙江三工汽车零部件有限公司 Oil pump

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Application publication date: 20141112

RJ01 Rejection of invention patent application after publication