KR20170028462A - Dual-row gear pump - Google Patents
Dual-row gear pump Download PDFInfo
- Publication number
- KR20170028462A KR20170028462A KR1020150120794A KR20150120794A KR20170028462A KR 20170028462 A KR20170028462 A KR 20170028462A KR 1020150120794 A KR1020150120794 A KR 1020150120794A KR 20150120794 A KR20150120794 A KR 20150120794A KR 20170028462 A KR20170028462 A KR 20170028462A
- Authority
- KR
- South Korea
- Prior art keywords
- gear
- housing
- oil
- operational oil
- hydraulic oil
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/063—Pump driven by vehicle engine
-
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
-
- 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
- F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
-
- 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
- F04C14/28—Safety arrangements; Monitoring
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
-
- 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
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
The present invention relates to a hydraulic gear pump which is attached to a power pack of an engine and receives a rotational power from an internal combustion engine such as an engine or an electric motor and forcibly flows a necessary flow rate to generate a force required for steering.
A typical gear pump is a pump that puts two gears that mesh with each other into a case circumscribing it and rotates the gear to flow the fluid through a space between the groove of the tooth and the peripheral wall.
Regarding this, Registration No. 10-1413694 has been disclosed.
The structure and operation principle of the gear pump will be described with reference to Figs. 1 to 3. First, the gear housing is provided with a bearing housing 1 forming an outer tube, and a
A first reduction gear 5 connected to a motor 4 via a motor (not shown) and rotated by receiving a driving force of the motor, and a second reduction gear 5 rotated in a state of being engaged with the first reduction gear. A
The bearing housing 1 is provided with a first
A first
A bearing that supports the shaft and smoothly rotates the shaft is coupled to the shaft of the motor and the shaft that connects the gears.
A fluid from a shaft portion rotating at high speed under a high temperature and a high pressure is introduced between the first
An
In such a conventional gear pump, a power is applied to generate a rotational force while a motor (not shown) is driven to rotate the shaft 4 connected to the motor, and the rotation shaft 4 rotates the shaft 4 in the
The
The first
At the same time, the second
Also, the first and
Therefore, the fluid introduced into the
The fluid transferred along the space formed between the inner surface of the
On the other hand, the working pressure in the above-mentioned gear pump (i.e., the pressure of the fluid) is determined by the rotational speed of the gear, which is generally set at a very high pressure (170 bar) Lt; / RTI >
Therefore, excessive pressure is applied to the actuator, which may easily damage or malfunction the actuator.
To solve this problem, it is possible to add a separate pressure reducing device, but in this case, additional cost is incurred and the structure of the device becomes complicated.
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems of the prior art.
Specifically, it is an object of the present invention to provide a two-row gear that can be stably and continuously pumped out of a gear pump having a single structure, thereby stably supplying hydraulic energy required for steering.
In order to accomplish the above object, a two-row gear pump according to the present invention includes: a rotary shaft (100) rotated by receiving external rotational power; Two rows of
As described above, the present invention can stably and continuously pump the operating oil due to the engagement of the two rows of the
1 is an exemplary view for explaining a conventional gear pump;
2 is an exemplary view for explaining an existing gear pump;
3 is an exemplary view for explaining a conventional gear pump;
4 is a front and rear perspective view of a two-row gear pump according to an embodiment of the present invention;
5 is a cross-sectional view of a two-row gear pump in accordance with an embodiment of the present invention;
6 is a diagram illustrating a gear operation of a two-row gear pump according to an embodiment of the present invention;
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the scope of the present invention.
Referring to FIGS. 4 and 5, the double row gear pump according to the present invention includes: a
Specifically, the present invention relates to a device for attaching to a power pack of an engine and generating a hydraulic energy required for steer by flowing a required flow rate by receiving rotational power from an internal combustion engine or an electric motor such as an engine, And the
6, the engagement of the gears forms an operating mechanism in which the hydraulic fluid on the front surface of the gear is continuously moved to the rear surface of the gear, It is a principle that is continuously pumped.
The
As described above, when the
At this time, it is preferable that the directionality of the 'V' -shaped end of the double helical gear is directed toward the pushing direction of the hydraulic oil.
6, the
At this time, the separated part of the separated
Next, an oil sealing (OS) is interposed between the
The rotating
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.
100:
200: Two gear housings
210: Driving gear
220: idler gear
300: housing with hydraulic oil
310: hydraulic oil inflow hole
320: Oil drain hole
400: valve housing
410: Flow rate outlet
420: relief valve
430: Priority valve
500: Mounting flange
510: Rotating shaft receiving hole
520: Oil bearing
Claims (4)
Two rows of driving gears 210 coupled to the rotation center through the rotation shaft 100 and rotated by the rotation of the rotation shaft 100;
Two rows of idler gears 220 rotating in engagement with the driving gear 210;
Two gear housings 200 having inner diameters corresponding to the outer diameters of the driving gear 210 and the idler gear 220 and accommodating the driving gear 210 and the idler gear 220;
A housing 300 as an operating oil interposed between the two gear housings 200 and formed with a working oil inlet hole 310 through which the working oil flows into one side and an operating oil discharge hole 320 through which the working oil is discharged from the other side;
A hydraulic oil inlet hole 310 through which the hydraulic oil is introduced into the gear housing 200 and a hydraulic oil discharge hole 320 through which the hydraulic oil is discharged to the other side of the gear housing 200 and an overflow oil discharge hole 410 through which the hydraulic oil is discharged, A valve housing (400) having a relief valve (420) for discharging excessive pressure and having a priority valve (430) for distributing and adjusting the flow rate of hydraulic oil;
And a mounting flange 500 coupled to the other gear housing 200 on the side where the valve housing 400 is coupled and having a rotation shaft receiving hole 510 for receiving the rotation shaft 100. [ Two-row gear pump.
The rotary shaft 100 is separated from each other so as to include a portion connected to the driving gears 210 in the two rows and is coupled to a connecting shaft 110 for connecting the separated portions to each other in a dynamic manner. Thermal gear pump.
(OS) that prevents leakage of operating oil is interposed between the gear housing (200), the hydraulic oil housing (300), the valve housing (400), and the mounting flange (500) Pump.
Wherein the rotary shaft receiving hole (510) of the mounting flange (500) further includes an oil bearing (520) for preventing the hydraulic oil from flowing out due to rotation of the rotary shaft (100).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150120794A KR20170028462A (en) | 2015-08-27 | 2015-08-27 | Dual-row gear pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150120794A KR20170028462A (en) | 2015-08-27 | 2015-08-27 | Dual-row gear pump |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20170028462A true KR20170028462A (en) | 2017-03-14 |
Family
ID=58459922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150120794A KR20170028462A (en) | 2015-08-27 | 2015-08-27 | Dual-row gear pump |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20170028462A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108443473A (en) * | 2018-04-23 | 2018-08-24 | 浙江创想节能科技有限公司 | A kind of mating anti-oil leakage device for valve actuator |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070100366A (en) | 2005-01-20 | 2007-10-10 | 티알더블유 오토모티브 게엠베하 | A power steering system hydraulic pump |
KR100892716B1 (en) | 2007-12-13 | 2009-04-15 | 현대자동차주식회사 | Variable displacement pump |
KR20120009019A (en) | 2010-07-21 | 2012-02-01 | 지효근 | Rotary Disc Pump |
-
2015
- 2015-08-27 KR KR1020150120794A patent/KR20170028462A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070100366A (en) | 2005-01-20 | 2007-10-10 | 티알더블유 오토모티브 게엠베하 | A power steering system hydraulic pump |
KR100892716B1 (en) | 2007-12-13 | 2009-04-15 | 현대자동차주식회사 | Variable displacement pump |
KR20120009019A (en) | 2010-07-21 | 2012-02-01 | 지효근 | Rotary Disc Pump |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108443473A (en) * | 2018-04-23 | 2018-08-24 | 浙江创想节能科技有限公司 | A kind of mating anti-oil leakage device for valve actuator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application | ||
E801 | Decision on dismissal of amendment | ||
E601 | Decision to refuse application |