CN108050056A - A kind of internal messing cycloidal gear type hydraulic pressure transformers - Google Patents
A kind of internal messing cycloidal gear type hydraulic pressure transformers Download PDFInfo
- Publication number
- CN108050056A CN108050056A CN201711390324.0A CN201711390324A CN108050056A CN 108050056 A CN108050056 A CN 108050056A CN 201711390324 A CN201711390324 A CN 201711390324A CN 108050056 A CN108050056 A CN 108050056A
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- Prior art keywords
- end cover
- hydraulic fluid
- rotor
- housing
- fluid port
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- 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.)
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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
- F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
A kind of internal messing cycloidal gear type hydraulic pressure transformers, including a housing (1), the eccentric bushing (2) being built on housing (1), the internal messing cycloid rotor being set in eccentric bushing (2) secondary (3) and upper end cover (4), the bottom end cover (5) that housing (1) both sides are connected to by bolt (6)；The beneficial effects of the invention are as follows, have the function of small, light-weight, simple in structure, easy to manufacture, compression frequency is high, flow pulsation is small, it is stable, more than remarkable advantage, set cycloidal gear type hydraulic pressure transformers are put for the shunting gear between off-load hydraulic fluid port and supercharging hydraulic fluid port, and different supercharging can be realized or be depressured multiplying power by exchanging off-load hydraulic fluid port and supercharging hydraulic fluid port.
Description
Technical field
It, can be by the pressure oil of input in hydraulic circuit the present invention relates to a kind of internal messing cycloidal gear type hydraulic pressure transformers
Pressure becomes higher or is lower, and possesses pressure holding function, belongs to machine-building hydraulic pressure transformers technology.
Technical background
Hydraulic system in industrial equipment usually various pressure working conditions and is deposited, and in circuit of boosting, commonly uses two methods, and one
To be pumped using double (more) connection, low pressure and mass flow, it is necessary to when high pressure be switched to small flow, it is not only complicated, of high cost, but also liquid
The maximum pressure of press pump is relatively low, limits the design application of hydraulic system.Another is with hydraulic intensifier, such hydraulic pressure increasing
Depressor is the integrated of a variety of Hydraulic Elements, and parts are more, complicated, and flow pulsation is big, expensive.Therefore, exploitation is a kind of
It is small, light-weight, simple in structure, flow pulsation is small, stable, cheap fluid pressure converter can further letter
Change hydraulic system structure, effectively reduce cost.
The content of the invention
To solve the above problems, the present invention provides a kind of internal messing cycloidal gear type hydraulic pressure transformers, pass through cycloid gear
The pressure oil pressure of input is become higher or is lower by external rotor radial perforate flow, and with pressure holding function.
The present invention is completed by following technical proposal：
A kind of internal messing cycloidal gear type hydraulic pressure transformers, including a housing, the eccentric bushing being built on housing is arranged
Internal messing cycloid rotor in eccentric bushing is secondary and upper end cover, the bottom end cover of housing both sides are connected to by bolt；Its
In：
Housing both ends offer upper end cover step, bottom end cover step respectively, uniformly offer on two steps and mutually pass through
Logical bolt hole offers a sets of holes in the step center；Oil inlet and pressurised oil are offered in a side of housing
Mouthful, offer off-load hydraulic fluid port in its offside, three hydraulic fluid ports with sets of holes penetrate through, three hydraulic fluid ports be all provided with connection screw thread for it is outer
If equipment is connected；It is located at a drift angle on the right side of oil inlet in sets of holes to open up there are one outer positioning half bore；
Eccentric bushing is opened up in side ring circumference there are three radial direction diversion channel, between three diversion channels using three current limliting shelves into
Row is connected and separated, and two of which current limliting gear is located at inner and outer rotors and exits meshing point and the positive outside position into meshing point respectively
It puts, another current limliting gear enters meshing point in inner and outer rotors and exits the outer fix between meshing point；Three diversion channels point
It is not communicated with oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port, oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port are separated by three current limliting gears
Three mutual indepedent regions；It is opened up in the left circumference of eccentric bushing the widest part current limliting shelves there are one interior positioning half bore, this is default
Position half bore is combined into a circle with positioning half bore outside casing radial face, using positioning pin eccentric bushing is made to consolidate with housing relative position
It is fixed；
Internal messing cycloid rotor is secondary to include outer rotor, internal rotor and the shaft being located on internal rotor mesoporous；Wherein outer rotor
Radial direction assignment hole is opened up between the curved tooth of adjacent two garden, hole shape includes but not limited to, between the flow hole number and outer rotor garden curved tooth
Tooth lacks that quantity is identical, and flow hole width is of same size with the current limliting shelves, flow bore closure when both making to be overlapped, when rotary shifted
Assignment hole is opened；Shaft both ends overhang one section and rabbet respectively with two end cap central recess；
Its each comfortable medial center of upper end cover, bottom end cover offers upper end cover groove, bottom end cover groove respectively, and opens respectively
Equipped with upper end cover bolt hole, the bottom end cover bolt hole corresponded, one of bolt of cover pore area screw thread.
Assignment hole on the outer rotor of internal messing cycloid rotor pair of the present invention radially opens up.
The step end face that the present invention is connected on housing with circular upper lid, bottom end cover respectively offers seal groove and adopts
It is sealed with sealing ring.
The eccentricity of eccentric bushing of the present invention is identical with the eccentricity of internal messing cycloid rotor pair, makes sets of holes in housing, bias
It is concentric to cover excircle, upper and lower ends lid and internal rotor.
The present invention upper end cover groove, bottom end cover groove two round recesseds on open axial lubrication slot, ensure inner rotor shaft
End is lubricated with round recessed scarf.
The operation principle of the present invention is, when pressure oil enters oil inlet, passes through and turns outside eccentric bushing radial direction diversion channel and cycloid
Sub- radial direction assignment hole enters the sealed volume (hereinafter referred to as " primitive ") of cycloid inner and outer rotors formation, promotes blance line inner-rotor rotation simultaneously
Band dynamic cycloid outer rotor is close to rotation on the inside of eccentric bushing, when a certain element volume communicated with oil inlet gradually increases to maximum
When, the assignment hole of the primitive is gradually Chong Die to closing with the current limliting gear between oil inlet and off-load hydraulic fluid port, at this time the element volume
No longer increase；Inner and outer rotors continue to rotate, while the assignment hole is opened with current limliting gear dislocation, this primitive space reduces, fluid quilt
Compression flows to unloading port oil return box, at this time the primitive no-load；Inner and outer rotors continue to rotate, this primitive assignment hole is gradually by off-load
Current limliting gear gradually Chong Die closing between hydraulic fluid port and supercharging hydraulic fluid port, thereafter dislocation are opened, and inner and outer rotors rotating torques are added at this time
It is downloaded on the primitive, fluid is pressed into supercharging hydraulic fluid port, realizes supercharging.Multiplying power is pressurized to be kept off by the current limliting between unloading port and boost port
Position determines.
When being pressurized to pressure balance, rotor is gradually slack-off to be finally stopped, and pressure oil overflows by the overflow valve on circuit, when
When boost port pressure reduces, rotor rotates again, and pressure holding function is realized with this.
Pressure oil enters supercharging hydraulic fluid port, inner and outer rotors is promoted to reversely rotate, unloading port repairing at this time (avoiding cavitation) low pressure
Oil is flowed out from oil inlet, realizes buck functionality.
The invention has the advantages that having, small, light-weight, simple in structure, easy to manufacture, compression frequency is high, stream
Amount pulsation is small, stable, the remarkable advantage more than function, is put for the shunting gear between off-load hydraulic fluid port and supercharging hydraulic fluid port set
Cycloidal gear type hydraulic pressure transformers, different supercharging can be realized with being pressurized hydraulic fluid port or be depressured multiplying power by exchanging off-load hydraulic fluid port.
Description of the drawings
Fig. 1 is half section schematic of the present invention；
Fig. 2 is the left-hand structure diagram that Fig. 1 removes part 5；
Fig. 3 is the A-A schematic cross-sectional views of Fig. 2；
Fig. 4 is internal messing cycloid rotor pair schematic cross-sectional view；
Fig. 5 is Fig. 4 top views；
Fig. 6 is eccentric bushing structure schematic diagram；
Fig. 7 is Fig. 6 top views；
Fig. 8 is bottom end cover schematic cross-sectional view；
Fig. 9 is upper end cover schematic cross-sectional view.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.
See Fig. 1, Fig. 2, Fig. 3, a kind of internal messing cycloidal gear type hydraulic pressure transformers including a housing 1, are built in housing
Eccentric bushing 2 on 1, the internal messing cycloid rotor pair being set in eccentric bushing 23 and are connected to 1 liang of housing by bolt 6
Upper end cover 4, the bottom end cover 5 of side；Wherein：
1 both ends of housing offer upper end cover step 1.1, bottom end cover step 1.2 respectively, are uniformly offered on two steps
The bolt hole 1.3 being mutually communicated offers a sets of holes 1.4 in the step center；Offered in a side of housing 1 into
Hydraulic fluid port 1.5 and supercharging hydraulic fluid port 1.6, offer off-load hydraulic fluid port 1.7, which penetrates through with sets of holes 1.4, three in its offside
Hydraulic fluid port is all provided with connection screw thread for being connected with peripheral apparatus；It is located at 1.5 one drift angle in right side of oil inlet in sets of holes 1.4 to offer
Positioning half bore 1.8 outside one；
See Fig. 6, Fig. 7, eccentric bushing 2 is opened up in side ring circumference there are three radial direction diversion channel 2.1, three diversion channels 2.1 it
Between be attached and separate using three current limliting shelves 2.2,2.3,2.4, two of which current limliting gear 2.3,2.2 is located inside and outside turn respectively
Son exit meshing point and into meshing point positive outer fix, another current limliting gear 2.4 be located at inner and outer rotors enter meshing point and
Exit the outer fix between meshing point；Three diversion channels 2.1 communicate respectively with oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port, and three
Oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port are separated into three mutual indepedent regions by a current limliting gear；In eccentric bushing the widest part current limliting
It is opened up in the left circumference of shelves 2.3 there are one interior positioning half bore 2.5, the interior positioning half bore 2.5 outside casing radial face with positioning
Half bore 1.8 is combined into a circle, using positioning pin 7 eccentric bushing is made to be fixed with housing relative position；
See Fig. 4, Fig. 5, internal messing cycloid rotor pair 3 includes outer rotor 3.1, internal rotor 3.2 and is located at 3.2 mesoporous of internal rotor
On shaft 3.3；Radial direction assignment hole 3.4 wherein is opened up between 3.1 adjacent two garden curved tooth of outer rotor, hole shape includes but not limited to 3.4,
Tooth between 3.4 quantity of assignment hole and 3.1 garden curved tooth of outer rotor lacks that quantity is identical, and 3.4 width of assignment hole and the current limliting shelves are wide
Spend identical, assignment hole 3.4 is closed when both making to be overlapped, and assignment hole 3.4 is opened when rotary shifted；3.3 both ends of shaft overhang one
Section is rabbeted respectively with two end cap central recess；
See Fig. 8, Fig. 9, its each comfortable medial center of upper end cover 4, bottom end cover 5 offers upper end cover groove 4.1, lower end respectively
Lid groove 5.1, and the upper end cover bolt hole 4.2 corresponded, bottom end cover bolt hole 5.2, one of end cap are offered respectively
Bolt hole is threaded.
3.4 radial direction of assignment hole on the outer rotor 3.1 of internal messing cycloid rotor pair 3 of the present invention opens up.
The step end face that the present invention is connected on housing 1 with circular upper lid 4, bottom end cover 5 respectively offers seal groove
And it is sealed using sealing ring.
The eccentricity of eccentric bushing 2 of the present invention is identical with the eccentricity of internal messing cycloid rotor pair 3, make sets of holes in housing, partially
Heart set excircle, upper and lower ends lid and internal rotor are concentric.
The present invention upper end cover groove 4.1, bottom end cover groove 5.1 two round recesseds on open axial lubrication slot, in guarantee
Rotor shaft end is lubricated with round recessed scarf.
The sealing space formed to following inner and outer rotors claims " primitive ".All primitives are separated by current limliting gear cooperation assignment hole
Three flow regions being connected respectively with oil inlet, off-load hydraulic fluid port, supercharging hydraulic fluid port, set M1, M2, M3 as the three of same primitive
A operating status, pressure oil enter oil inlet by eccentric bushing diversion channel, outer rotor assignment hole into the primitive communicated therewith, push away
Dynamic cycloid inner and outer rotors are rotated clockwise, and when rotating to the position of primitive M1, primitive assignment hole 3.4 keeps off 2.2 with current limliting
It being overlapped, flow bore closure, the element volume no longer increases at this time, continues assignment hole 3.4 and 2.2 dislocation of current limliting gear during rotation, by
It gradually opens, the element volume reduces at this time, and fluid enters off-load hydraulic fluid port (such as primitive M2), this process is the primitive off-load, is not disappeared
Consume rotor torque energy.Rotor continues to rotate, and when the primitive assignment hole, dislocation is opened again thereafter with the 2.4 Chong Die closing of current limliting gear
When, rotor torque is loaded on this primitive at this time, which reduces, and fluid is pressed into supercharging hydraulic fluid port (such as M3), is realized and is increased
Pressure.
With reference to attached drawing 2 when high pressure oil enters supercharging hydraulic fluid port and enters supercharging primitive by eccentric bushing diversion channel, inside and outside promotion
Rotor counterclockwise rotates, off-load hydraulic fluid port repairing (preventing cavitation), and oil inlet is decompression big flow oil outlet at this time, realizes drop
Press function.
Claims (5)
1. a kind of internal messing cycloidal gear type hydraulic pressure transformers, which is characterized in that including a housing (1), be built in housing (1)
On eccentric bushing (2), the internal messing cycloid rotor that is set in eccentric bushing (2) secondary (3) and be connected to by bolt (6)
The upper end cover (4), bottom end cover (5) of housing (1) both sides；Wherein：
Housing (1) both ends offer upper end cover step (1.1), bottom end cover step (1.2) respectively, are uniformly opened up on two steps
There is the bolt hole (1.3) being mutually communicated, a sets of holes (1.4) are offered in the step center；In a side of housing (1)
Offer oil inlet (1.5) and supercharging hydraulic fluid port (1.6), offer off-load hydraulic fluid port (1.7) in its offside, three hydraulic fluid ports with set
Hole (1.4) penetrates through, and three hydraulic fluid ports are all provided with connection screw thread for being connected with peripheral apparatus；It is located at oil inlet in sets of holes (1.4)
(1.5) one drift angle in right side is opened up positions half bore (1.8) there are one outer；
Eccentric bushing (2) is opened up in side ring circumference there are three radial direction diversion channel (2.1), and three are used between three diversion channels (2.1)
A current limliting shelves (2.2), (2.3), (2.4) are attached and separate, and two of which current limliting gear (2.3,2.2) is located inside and outside turn respectively
Son exits meshing point and the positive outer fix into meshing point, another current limliting gear (2.4) is located at inner and outer rotors and enters meshing point
With exiting the outer fix between meshing point；Three diversion channels (2.1) respectively with oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port phase
Logical, oil inlet, off-load hydraulic fluid port and supercharging hydraulic fluid port are separated into three mutual indepedent regions by three current limliting gears；In eccentric bushing the widest part
It is opened up in the left circumference of current limliting shelves (2.3) there are one interior positioning half bore (2.5), the interior positioning half bore (2.5) and shell sets of holes
Half bore (1.8) is positioned outside cambered surface and is combined into a circle, using positioning pin (7) eccentric bushing is made to be fixed with housing relative position；
Internal messing cycloid rotor pair (3) includes outer rotor (3.1), internal rotor (3.2) and is located on internal rotor (3.2) mesoporous to turn
Axis (3.3)；Radial direction assignment hole (3.4) wherein is opened up between the adjacent two gardens curved tooth of outer rotor (3.1), hole shape includes but not limited to
(3.4), it is identical to lack quantity for the tooth between assignment hole (3.4) quantity and outer rotor (3.1) garden curved tooth, assignment hole (3.4) width with
The current limliting shelves are of same size, and close assignment hole (3.4) during the two overlapping, assignment hole (3.4) is opened when rotary shifted；Shaft
(3.3) both ends overhang one section and rabbet respectively with two end cap central recess；
Its each comfortable medial center of upper end cover (4), bottom end cover (5) offers upper end cover groove (4.1), bottom end cover groove respectively
(5.1), the upper end cover bolt hole (4.2) corresponded, bottom end cover bolt hole (5.2), one of end cap and are offered respectively
Bolt hole is threaded.
A kind of 2. internal messing cycloidal gear type hydraulic pressure transformers according to claim 1, which is characterized in that internal messing cycloid
Assignment hole (3.4) on the outer rotor (3.1) of rotor pair (3) radially opens up.
3. a kind of internal messing cycloidal gear type hydraulic pressure transformers according to claim 1, which is characterized in that in housing (1)
The upper step end face being connected respectively with circular upper lid (4), bottom end cover (5) is offered seal groove and is sealed using sealing ring.
A kind of 4. internal messing cycloidal gear type hydraulic pressure transformers according to claim 1 or 3, which is characterized in that eccentric bushing
(2) eccentricity is identical with the eccentricity of internal messing cycloid rotor secondary (3), makes sets of holes in housing, eccentric bushing excircle, upper and lower two
End cap is concentric with internal rotor.
5. a kind of internal messing cycloidal gear type hydraulic pressure transformers according to claim 1, which is characterized in that recessed in upper end cover
Slot (4.1), bottom end cover groove (5.1) two round recesseds on open axial lubrication slot, ensure that internal rotor shaft end is rabbeted with round recessed
Place's lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390324.0A CN108050056B (en) | 2017-12-21 | 2017-12-21 | A kind of internal messing cycloidal gear type hydraulic pressure transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390324.0A CN108050056B (en) | 2017-12-21 | 2017-12-21 | A kind of internal messing cycloidal gear type hydraulic pressure transformers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108050056A true CN108050056A (en) | 2018-05-18 |
| CN108050056B CN108050056B (en) | 2019-04-09 |
Family
ID=62130909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711390324.0A Expired - Fee Related CN108050056B (en) | 2017-12-21 | 2017-12-21 | A kind of internal messing cycloidal gear type hydraulic pressure transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050056B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759533A (en) * | 2024-01-16 | 2024-03-26 | 南京孚奥智能技术有限公司 | Internal gear pump and external rotor of internal gear pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097295U (en) * | 1991-04-16 | 1992-02-26 | 王浩钧 | Internal-engagement internal cycloidal oil pump |
| US5711660A (en) * | 1995-06-30 | 1998-01-27 | Jatco Corporation | Internal gear type rotary pump having a relief groove |
| JP3161471U (en) * | 2010-05-21 | 2010-07-29 | 日本オイルポンプ株式会社 | Gear pump |
| CN201747591U (en) * | 2009-04-29 | 2011-02-16 | 赵来福 | Arc cycloid rotary oil transfer pump |
| CN103541893A (en) * | 2013-11-04 | 2014-01-29 | 株洲高精传动技术有限公司 | Inner gearing shaft head cycloid gear pump |
-
2017
- 2017-12-21 CN CN201711390324.0A patent/CN108050056B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097295U (en) * | 1991-04-16 | 1992-02-26 | 王浩钧 | Internal-engagement internal cycloidal oil pump |
| US5711660A (en) * | 1995-06-30 | 1998-01-27 | Jatco Corporation | Internal gear type rotary pump having a relief groove |
| CN201747591U (en) * | 2009-04-29 | 2011-02-16 | 赵来福 | Arc cycloid rotary oil transfer pump |
| JP3161471U (en) * | 2010-05-21 | 2010-07-29 | 日本オイルポンプ株式会社 | Gear pump |
| CN103541893A (en) * | 2013-11-04 | 2014-01-29 | 株洲高精传动技术有限公司 | Inner gearing shaft head cycloid gear pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117759533A (en) * | 2024-01-16 | 2024-03-26 | 南京孚奥智能技术有限公司 | Internal gear pump and external rotor of internal gear pump |
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| Publication number | Publication date |
|---|---|
| CN108050056B (en) | 2019-04-09 |
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