CN105840490A - Inner-gearing variable gear pump - Google Patents
Inner-gearing variable gear pump Download PDFInfo
- Publication number
- CN105840490A CN105840490A CN201610163246.XA CN201610163246A CN105840490A CN 105840490 A CN105840490 A CN 105840490A CN 201610163246 A CN201610163246 A CN 201610163246A CN 105840490 A CN105840490 A CN 105840490A
- Authority
- CN
- China
- Prior art keywords
- variable
- pump
- compensating plate
- gear
- isolation compensating
- 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.)
- Granted
Links
- 238000002955 isolation Methods 0.000 claims abstract description 57
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Retarders (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses an inner-gearing variable gear pump comprising a main shaft, a pump front cover, a pump rear cover, a pump body, an external gear, an inner gear ring, an annular variable oil cylinder, a variable spring, a front variable isolation compensating plate and a rear variable isolation compensating plate. One end, close to the pump front cover, of the main shaft is rotatably mounted inside the pump front cover through a rolling bearing; the variable spring is arranged at a position close to the outer ring of the rolling bearing and is coaxially mounted on the main shaft; the other side of the variable spring is provided with a baffle plate, and the other side of the baffle plate is provided with an inner gear; the front variable isolation compensating plate and the rear variable isolation compensating plate are respectively mounted at the inner sides of the pump front cover and the pump rear cover; the outer gear ring is mounted between the front variable isolation compensating plate and the rear variable isolation compensating plate. By means of arrangement of the variable spring and the annular variable oil cylinder, the variable purpose of the inner-gearing gear pump is realized, and the inner-gearing variable gear pump has the advantages of high pollution capacity and good self absorption property, and can be applied to harsh working conditions.
Description
Technical field
The present invention relates to a kind of hydraulic pump, be specifically related to a kind of internal messing gear pump with variable capacity, belong to hydraulic components technical field.
Background technology
Along with the development of machinery industry, hydraulic components is also constantly updating.Gear pump is that the hydraulic pressure of a kind of technology relative maturity commonly uses power parts, currently use and more be still external gear rotary pump, compare external gear rotary pump, crescent gear pump is in addition to having that the contamination resistance that external gear rotary pump had is strong, good from absorption, being applicable to bad working environments etc. a little, also there is the advantages such as output flow pulsation is lower, noise is less, but the crescent gear pump of technology maturation the most there is not, especially internal messing gear pump with variable capacity.
Summary of the invention
For the problems referred to above, the present invention provides a kind of internal messing gear pump with variable capacity, and it is provided by a series of adjustment structure, it is achieved that the purpose of crescent gear pump variable.
The technical scheme that the present invention takes is: a kind of internal messing gear pump with variable capacity, including main shaft, pump protecgulum and pump postoperculum, the pump housing, external gear and ring gear, annular variable oil cylinder, variable spring, front variable isolation compensating plate and rear variable isolation compensating plate, it is characterized in that: described pump protecgulum is arranged on pump housing front end by bolt, described pump postoperculum is arranged on pump housing rear end by bolt；Main shaft is rotatably installed in by rolling bearing inside pump protecgulum near one end of pump protecgulum, is provided with axle envelope, is axially fixed on the shaft shoulder of main shaft by rolling bearing inner ring inside rolling bearing outside described rolling bearing；Adjacent housing washer is provided with variable spring, and described variable spring is coaxially mounted on main shaft；The opposite side of variable spring is provided with dividing plate, and described dividing plate opposite side is provided with external gear, and described external gear is provided centrally with spline, and cooperates with the spline on main shaft, and external gear can move axially on main shaft；Described front variable isolation compensating plate and rear variable isolation compensating plate are separately mounted to the inner side of pump protecgulum and pump postoperculum, being connected with each other by a chock between front variable isolation compensating plate and rear variable isolation compensating plate, described chock is arranged on rear variable isolation compensating plate by steady pin；Described ring gear is arranged between front variable isolation compensating plate and rear variable isolation compensating plate, and engages each other with external gear；Main shaft is each passed through front variable isolation compensating plate and rear variable isolation compensating plate, and main shaft is rotatably installed in pump postoperculum by anti-friction bearing near one end of pump postoperculum；Described pump postoperculum is internally provided with cannelure, and pump postoperculum outer surface is provided with Variable Control oil inlet and Variable Control oil export, and described Variable Control oil inlet and cannelure communicate, and described Variable Control oil export communicates with pump body；Described annular variable oil cylinder is slidably mounted in the cannelure in pump postoperculum, and annular variable oil cylinder side is bonded to each other with rear variable isolation compensating plate side.
Further, described pump housing outer surface one end is provided with oil-in, and the other end is provided with oil-out, and described oil-in and oil-out all communicate with pump body.
Further, described ring gear excircle being evenly equipped with logical hydraulic fluid port, described logical hydraulic fluid port all communicates with pump body, and the axis of each logical hydraulic fluid port is axially mutually perpendicular to ring gear.
Further, it is provided with sealing ring between described front variable isolation compensating plate and rear variable isolation compensating plate and pump protecgulum and pump postoperculum.
Further, described main shaft is provided with keyway on one end of pump protecgulum.
Further, the diameter of described front variable isolation compensating plate central through hole is more than the external diameter of external gear；The external diameter of described dividing plate is more than the external diameter of external gear, and the diameter of the central through hole less than front variable isolation compensating plate.
Owing to present invention employs technique scheme, the invention have the advantages that the present invention is provided by variable spring and annular variable oil cylinder, achieve the purpose of crescent gear pump variable, have that pollution capacity is strong, good from absorption, be applicable to the advantages such as bad working environments.
Accompanying drawing explanation
Fig. 1 is the overall assembling perspective view of the present invention.
Fig. 2 is the perspective view after pump protecgulum, pump postoperculum and the pump housing being hidden in the present invention.
Fig. 3 is the perspective view after pump protecgulum, pump postoperculum, the pump housing, annular variable oil cylinder, external toothing being hidden in the present invention.
Fig. 4 is the perspective view after pump protecgulum, pump postoperculum, the pump housing, annular variable oil cylinder, external toothing, front variable isolation compensating plate being hidden in the present invention.
Fig. 5 is the perspective view of main shaft in the present invention.
The perspective view of chock in the present invention of Fig. 6 position.
Drawing reference numeral: 1-main shaft；2-pump protecgulum；The 3-pump housing；4-pump postoperculum；5-axle seals；6-rolling bearing；7-variable spring；Variable isolation compensating plate before 8-；9-ring gear；Variable isolation compensating plate after 10-；11-sealing ring；12-annular variable oil cylinder；13-external gear；14-anti-friction bearing；15-chock；16-dividing plate；101-keyway；102-spline；301-oil-in；302-oil-out.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, and the illustrative examples invented at this and explanation are for explaining the present invention, but not as a limitation of the invention.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of internal messing gear pump with variable capacity, including main shaft 1, pump protecgulum 2 and pump postoperculum 4, the pump housing 3, external gear 13 and ring gear 9, annular variable oil cylinder 12, variable spring 7, front variable isolation compensating plate 8 and rear variable isolation compensating plate 10, it is characterized in that: described pump protecgulum 2 is arranged on the pump housing 3 front end by bolt, described pump postoperculum 4 is arranged on the pump housing 3 rear end by bolt；It is internal that main shaft 1 is rotatably installed in pump protecgulum 2 near one end of pump protecgulum 2 by rolling bearing 6, is provided with axle envelope 5, is axially fixed on the shaft shoulder of main shaft 1 by rolling bearing 6 inner ring inside rolling bearing 6 outside described rolling bearing 6；Adjacent rolling bearing 6 outer ring is provided with variable spring 7, and described variable spring 7 is coaxially mounted on main shaft 1；The opposite side of variable spring 7 is provided with dividing plate 16, and described dividing plate 16 opposite side is provided with external gear 13, and described external gear 13 is provided centrally with spline, and cooperates with the spline 102 on main shaft 1, and external gear 13 can move axially on main shaft 1；Described front variable isolation compensating plate 8 and rear variable isolation compensating plate 10 are separately mounted to pump protecgulum 2 and the inner side of pump postoperculum 4, being connected with each other by a chock 15 between front variable isolation compensating plate 8 and rear variable isolation compensating plate 10, described chock 15 is arranged on rear variable isolation compensating plate 10 by steady pin；Described ring gear 9 is arranged between front variable isolation compensating plate 8 and rear variable isolation compensating plate 10, and engages each other with external gear 13；Main shaft 1 is each passed through front variable isolation compensating plate 8 and rear variable isolation compensating plate 10, and main shaft 1 is rotatably installed in pump postoperculum 4 by anti-friction bearing 14 near one end of pump postoperculum 2；Described pump postoperculum 4 is internally provided with cannelure, and pump postoperculum 4 outer surface is provided with Variable Control oil inlet and Variable Control oil export, and described Variable Control oil inlet and cannelure communicate, and described Variable Control oil export is internal with the pump housing 3 to be communicated；Described annular variable oil cylinder 12 is slidably mounted in the cannelure in pump postoperculum 4, and annular variable oil cylinder 12 side is bonded to each other with rear variable isolation compensating plate 10 side.
Further, the described pump housing 3 outer surface one end is provided with oil-in 301, and the other end is provided with oil-out 302, and described oil-in 301 and oil-out 302 are all internal with the pump housing 3 to be communicated.
Further, described ring gear 9 excircle being evenly equipped with logical hydraulic fluid port, described logical hydraulic fluid port is all internal with the pump housing 3 to be communicated, and the axis of each logical hydraulic fluid port is axially mutually perpendicular to ring gear 9.
Further, it is provided with sealing ring 11 between described front variable isolation compensating plate 8 and rear variable isolation compensating plate 10 and pump protecgulum 2 and pump postoperculum 4.
Further, described main shaft 1 is provided with keyway 101 on one end of pump protecgulum 2.
Further, the diameter of described front variable isolation compensating plate 8 central through hole is more than the external diameter of external gear 13；The external diameter of described dividing plate 16 is more than the external diameter of external gear 13, and the diameter of the central through hole less than front variable isolation compensating plate 8.
The operation principle of the present invention is: the present invention is in use, introduced by Variable Control oil inlet on pump postoperculum 4 and control oil and drive the annular variable oil cylinder 12 of inside, so that internal gear 13 moves axially along the spline 102 on main shaft 1 and changes the length of action of outer internal gear 13 and ring gear 9 thus reach variable purpose.It is controlled with the oil of certain rule Variable Control oil inlet to leading on pump postoperculum 4, then pump can be made to reach different variable mode, adapt to different work process with this, greatly expanded the range of gear pump.
Claims (6)
1. an internal messing gear pump with variable capacity, including main shaft (1), pump protecgulum (2) and pump postoperculum (4), the pump housing (3), external gear (13) and ring gear (9), annular variable oil cylinder (12), variable spring (7), front variable isolation compensating plate (8) and rear variable isolation compensating plate (10), it is characterized in that: described pump protecgulum (2) is arranged on the pump housing (3) front end by bolt, described pump postoperculum (4) is arranged on the pump housing (3) rear end by bolt；It is internal that main shaft (1) is rotatably installed in pump protecgulum (2) near one end of pump protecgulum (2) by rolling bearing (6), described rolling bearing (6) outside is provided with axle envelope (5), and rolling bearing (6) inner side is axially fixed on the shaft shoulder of main shaft (1) by rolling bearing (6) inner ring；Adjacent rolling bearing (6) outer ring is provided with variable spring (7), and described variable spring (7) is coaxially mounted on main shaft (1)；The opposite side of variable spring (7) is provided with dividing plate (16), described dividing plate (16) opposite side is provided with internal gear (13), described external gear (13) is provided centrally with spline, and cooperate with the spline (102) on main shaft (1), external gear (13) can move axially on main shaft (1)；Described front variable isolation compensating plate (8) and rear variable isolation compensating plate (10) are separately mounted to pump protecgulum (2) and the inner side of pump postoperculum (4), being connected with each other by a chock (15) between front variable isolation compensating plate (8) and rear variable isolation compensating plate (10), described chock (15) is arranged on rear variable isolation compensating plate (10) by steady pin；Described ring gear (9) is arranged between front variable isolation compensating plate (8) and rear variable isolation compensating plate (10), and engages each other with external gear (13)；Main shaft (1) is each passed through front variable isolation compensating plate (8) and rear variable isolation compensating plate (10), and main shaft (1) is rotatably installed in pump postoperculum (4) by anti-friction bearing (14) near one end of pump postoperculum (2)；Described pump postoperculum (4) is internally provided with cannelure, pump postoperculum (4) outer surface is provided with Variable Control oil inlet and Variable Control oil export, described Variable Control oil inlet and cannelure communicate, and described Variable Control oil export is internal with the pump housing (3) to be communicated；Described annular variable oil cylinder (12) is slidably mounted in the cannelure in pump postoperculum (4), and annular variable oil cylinder (12) side is bonded to each other with rear variable isolation compensating plate (10) side.
2. a kind of internal messing gear pump with variable capacity as claimed in claim 1, it is characterized in that: the described pump housing (3) outer surface one end is provided with oil-in (301), the other end is provided with oil-out (302), and described oil-in (301) and oil-out (302) are all internal with the pump housing (3) to be communicated.
3. a kind of internal messing gear pump with variable capacity as claimed in claim 1, it is characterized in that: on described ring gear (9) excircle, be evenly equipped with logical hydraulic fluid port, described logical hydraulic fluid port is all internal with the pump housing (3) to be communicated, and the axis of each logical hydraulic fluid port is axially mutually perpendicular to ring gear (9).
4. a kind of internal messing gear pump with variable capacity as claimed in claim 1, it is characterised in that: it is provided with sealing ring (11) between described front variable isolation compensating plate (8) and rear variable isolation compensating plate (10) and pump protecgulum (2) and pump postoperculum (4).
5. a kind of internal messing gear pump with variable capacity as claimed in claim 1, it is characterised in that: described main shaft (1) is provided with keyway (101) on one end of pump protecgulum (2).
6. a kind of internal messing gear pump with variable capacity as claimed in claim 1, it is characterised in that: the diameter of described front variable isolation compensating plate (8) central through hole is more than the external diameter of external gear (13)；The external diameter of described dividing plate (16) is more than the external diameter of external gear (13), and the diameter of the central through hole less than front variable isolation compensating plate (8).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308168.7A CN108644110B (en) | 2016-03-19 | 2016-03-19 | Internal gearing variable gear pump |
| CN201610163246.XA CN105840490B (en) | 2016-03-19 | 2016-03-19 | A kind of internal messing gear pump with variable capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163246.XA CN105840490B (en) | 2016-03-19 | 2016-03-19 | A kind of internal messing gear pump with variable capacity |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308168.7A Division CN108644110B (en) | 2016-03-19 | 2016-03-19 | Internal gearing variable gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840490A true CN105840490A (en) | 2016-08-10 |
| CN105840490B CN105840490B (en) | 2018-06-22 |
Family
ID=56588366
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610163246.XA Active CN105840490B (en) | 2016-03-19 | 2016-03-19 | A kind of internal messing gear pump with variable capacity |
| CN201810308168.7A Active CN108644110B (en) | 2016-03-19 | 2016-03-19 | Internal gearing variable gear pump |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308168.7A Active CN108644110B (en) | 2016-03-19 | 2016-03-19 | Internal gearing variable gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105840490B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905094A (en) * | 1955-06-01 | 1959-09-22 | Carrier Corp | Automatically reversible positive displacement internal gear rotary pump |
| US3364868A (en) * | 1967-01-17 | 1968-01-23 | Koerper Engineering Associates | Rotary piston engine |
| US4492539A (en) * | 1981-04-02 | 1985-01-08 | Specht Victor J | Variable displacement gerotor pump |
| JP2005530953A (en) * | 2002-06-26 | 2005-10-13 | ブヒット エス．ピー．エー． | Internal gear machine with various capabilities |
| CN201218200Y (en) * | 2008-05-30 | 2009-04-08 | 上海通用汽车有限公司 | Displacement-variable inner-meshing rotor pump |
| CN104088784A (en) * | 2014-07-08 | 2014-10-08 | 南通恒好液压科技有限公司 | Internally meshed variable gear pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410212B (en) * | 2011-12-06 | 2015-01-21 | 张意立 | Tower spring compensation inner and outer gear wheel pump |
| DE102012019906B3 (en) * | 2012-10-11 | 2014-02-20 | Audi Ag | Gear control oil pump, particularly external gear control oil pump for internal combustion engine of motor vehicle, comprises two conveyor gears and spring elements designed such that latter conveyor gear is pushed in intermediate position |
| US9163628B2 (en) * | 2013-03-11 | 2015-10-20 | Imo Industries, Inc. | Self adjusting gear pump |
| CN204082528U (en) * | 2014-07-08 | 2015-01-07 | 南通恒好液压科技有限公司 | Novel internal messing gear pump with variable capacity |
-
2016
- 2016-03-19 CN CN201610163246.XA patent/CN105840490B/en active Active
- 2016-03-19 CN CN201810308168.7A patent/CN108644110B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905094A (en) * | 1955-06-01 | 1959-09-22 | Carrier Corp | Automatically reversible positive displacement internal gear rotary pump |
| US3364868A (en) * | 1967-01-17 | 1968-01-23 | Koerper Engineering Associates | Rotary piston engine |
| US4492539A (en) * | 1981-04-02 | 1985-01-08 | Specht Victor J | Variable displacement gerotor pump |
| JP2005530953A (en) * | 2002-06-26 | 2005-10-13 | ブヒット エス．ピー．エー． | Internal gear machine with various capabilities |
| CN201218200Y (en) * | 2008-05-30 | 2009-04-08 | 上海通用汽车有限公司 | Displacement-variable inner-meshing rotor pump |
| CN104088784A (en) * | 2014-07-08 | 2014-10-08 | 南通恒好液压科技有限公司 | Internally meshed variable gear pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108644110A (en) | 2018-10-12 |
| CN108644110B (en) | 2020-08-28 |
| CN105840490B (en) | 2018-06-22 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Yegang Inventor after: Fan Nengsheng Inventor after: Huan Qiaosheng Inventor before: The inventor has waived the right to be mentioned |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180328 Address after: No. 68 salt Xing Road, Yancheng City, Jiangsu Province, Jiangsu Applicant after: Jiangsu Sheng an Tiomin Resources Inc Address before: Dingxing County in Hebei province 072659 Baoding city high in the North Village West District No. 7 Applicant before: Liu Fan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.68 Yanxing Road, Yandu District, Yancheng City, Jiangsu Province Patentee after: Jiangsu Sheng'an transmission Co., Ltd Address before: No.68, Yanxing Road, Yandu District, Yancheng City, Jiangsu Province, 224016 Patentee before: JIANGSU SHENG'AN RESOURCES Co.,Ltd. |