CN100368247C - Geluote energy saving high efficiency hydraulic deflector - Google Patents
Geluote energy saving high efficiency hydraulic deflector Download PDFInfo
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- CN100368247C CN100368247C CNB2006100390830A CN200610039083A CN100368247C CN 100368247 C CN100368247 C CN 100368247C CN B2006100390830 A CNB2006100390830 A CN B2006100390830A CN 200610039083 A CN200610039083 A CN 200610039083A CN 100368247 C CN100368247 C CN 100368247C
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Abstract
The present invention relates to a Geluote energy-saving high efficiency hydraulic steering gear which belongs to the technical field of hydraulic transmission. A flow passage communicated with a liquid inlet and a liquid outlet is arranged in an outer shell of the steering gear. A valve core extending to the outer part is supported by one end of a valve body, the inner end of the valve core is connected to one end of a couple axle arranged in the valve body, the couple axle is in transmission connection with a valve sleeve arranged in the valve body, and the other end of the couple axle passes through a separation disc to be engaged with an inner hole of a rotor through a spline gear pair. A top circle of the rotor is provided with a cycloid tooth which is mutually engaged with a needle tooth of an inner circle of a stator to form a cycloid gear pair, the liquid inlet is connected with the liquid outlet through a floating one-way valve, and a blocking piece of the floating one-way valve is used for blocking the one-way valve under the pressure difference between inlet liquid and outlet liquid. When the rated pressure difference between the inlet liquid and the outlet liquid disappears, the present invention is in a drainage floating state. When the present invention does not steer, the blocking piece of the one-way valve is in a floating state so as to form the short circuit of partial liquid flow. Thereby, the present invention prevents the system pressure from rising, the efficiency is improved, and the present invention performs the function of energy saving.
Description
Technical field
The present invention relates to a kind of mechanical energy-hydraulic pressure energy conversion control device, especially a kind of flow passage structure of efficient energy-saving hydraulic steering gear improves, and belongs to hydraulic transmission technology field.
Background technology
Hydraulic steering gear is to realize the commonly used hydraulic actuator of mechanical energy to hydraulic pressure energy conversion and control, and its core component is curve pinwheel Meshing Pair and rotary valve flow distributing mechanism.The effect of curve pinwheel Meshing Pair is the metering that realizes hydraulic flow, and the effect of rotary valve is a control liquid flow path direction.The structure of typical case's deflector can be referring to Fig. 1, valve body 1 is by being connected every dish 8 and stator 9 and bonnet 25, wherein be shaped on the runner that is communicated with inlet and liquid outlet, one end of valve body 1 is supported with and extends to exterior spool 24, the inner of spool 24 is connected with universal driving shaft 7 one ends in being placed in valve body 1, universal driving shaft 7 is in transmission connection with the valve pocket 23 that is installed in rotatable switching runner in the valve body 1, the other end of universal driving shaft 7 passes every dish 8, by spline tooth wheel set and the engagement of rotor 10 endoporus, the cylindrical of rotor 10 is shaped on cycloidal tooth, constitutes intermeshing cycloidal tooth wheel set with the pin tooth of justifying in the stator.
During work, the rotation of spool can drive the valve pocket rotation by universal driving shaft, thereby realizes that the runner in the valve body switches, make feed liquor pass through the cavity volume output of cycloidal tooth wheel set, not only by switch to realize flowing to control, and, realize flow output control by the directional characteristic of cycloidal tooth wheel set.Its advantage is stable performance, and efficient is higher, realizes easily, has therefore obtained at aspects such as Vehicular turns using widely.
Yet the applicant finds that in long-term practice research still there is weak point in existing hydraulic steering gear: at first, when not needing to turn to, pressure fluid also will pass through the bigger runner of valve body internal damping fully, still has certain energy consumption.Secondly, in valve body the comparatively complicated flow passage structure, external lug, interface are more, so volume is bigger, is difficult to satisfy the supporting requirement of miniaturization.In addition, valve pocket and valve body hinder the rotation of valve pocket in the course of the work easily because of distortion, influence stable performance.
Summary of the invention
Primary and foremost purpose of the present invention is: at the main weak point of above prior art existence, by improvement to flow passage structure, propose a kind of when not needing to turn to, the Ge Luote that can cut down the consumption of energy (Ge Luote is the Chinese industry transliteration of English GEROTOR) efficient energy-saving hydraulic steering gear.Further aim of the present invention is: by the improvement to the runner connected structure, propose a kind of compact conformation, motion pulsation-free Geluote energy saving high efficiency hydraulic deflector.
Further object of the present invention is: propose a kind of Geluote energy saving high efficiency hydraulic deflector that can avoid the valve pocket distortion to be obstructed, thereby further improve its working stability.
The technical scheme that the present invention is directed to above-mentioned primary goal of the invention is: Geluote energy saving high efficiency hydraulic deflector, valve body with every dish, stator, the bonnet formation shell that is connected, wherein be shaped on the runner that is communicated with inlet and liquid outlet, one end of described valve body is supported with and extends to exterior spool, the inner of described spool universal driving shaft one end interior with being placed in valve body is connected, described universal driving shaft is in transmission connection with the valve pocket that is installed in the valve body, the other end of described universal driving shaft passes every dish, by spline tooth wheel set and rotor inner hole engagement, the cylindrical of described rotor is shaped on cycloidal tooth, constitute intermeshing cycloidal tooth wheel set with the pin tooth of circle in the stator, its improvements are, described inlet connects liquid outlet through the check valve that floats, the obstruction piece of described unsteady check valve is being advanced, blocking-up check valve when there is difference of pressure in fluid, advancing, when fluid rated pressure difference disappears, but be in the earial drainage quick condition.
During practical application, when steering operation, the runner damping of deflector pressure fluid process of the present invention is bigger, and system's hydraulic pressure is higher, and check valve is subjected to back pressure and closes; When not turning to, the runner damping of pressure fluid process is less, and liquid inlet and outlet rated pressure difference obviously reduces, and the obstruction piece of check valve is in quick condition, can form part liquid flow short-circuit, thereby avoids system pressure to raise, and plays energy-conserving action.
In order to reach above further purpose, the valve body of Geluote energy saving high efficiency hydraulic deflector of the present invention is connected with employing hollow bolt between dish, stator, bonnet and is connected, the outer end of described hollow bolt is shaped on the liquid inlet and outlet mouth structure, and the inner of described hollow bolt is communicated with cooresponding runner.
Because the present invention is reasonably integrated fastening connection piece and liquid inlet and outlet, therefore not only to have simplified design, and made more compact structure, volume is smaller and more exquisite, thereby can better meet the supporting demand of miniaturization, reaches effect efficiently.
In order to reach further object of the present invention, between described valve body and the valve pocket collar is housed, described collar cylindrical cooperates with the endoporus moving (gap) of valve body, and described collar endoporus cooperates the opposing end surface contact matching of described collar end face and valve pocket with the cylindrical of valve pocket quiet (interference).Valve pocket is slick and sly to rotate because of distortion stops in the course of the work can to prevent the part (being generally spring plate group) that is connected of spool and valve pocket like this, guarantees working stability, can realize low-resistance simultaneously, helps energy-conservationly, increases work efficiency.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation (for the purpose of clear, the check valve that floats is not shown) of the preferred embodiment of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the B-B part sectional view of Fig. 2.
Fig. 4 be Fig. 1 upper left corner part install the check valve that floats structural representation.
Fig. 5 is the hydraulic schematic diagram of Fig. 1.
More than 1 be valve body among each figure, the 2nd, dust-proof seal ring, the 3rd, X-shaped seal ring, the 4th, surface bearing, the 5th, baffle ring, the 6th, finger, the 7th, universal driving shaft, the 8th, every dish, the 9th, stator, the 10th, rotor, the 11st, pilot seal circle, the 12nd, hollow bolt, the 13rd, limited post, the 14th, oil sealing, the 15th, collar, the 16th, spring leaf (group), the 17th, plug, the 18th, pressure regulation is revolved stifled (assembly), and the 19th, spring, the 20th, overflow spool (assembly), the 21st, steel ball, the 22nd, locating dowel pin sheet, the 23rd, valve pocket, the 24th, spool, the 25th, bonnet.
The specific embodiment
Embodiment one
Below in conjunction with above-mentioned accompanying drawing, the present invention is described in detail again.
The basic structure of the Geluote energy saving high efficiency hydraulic deflector of present embodiment as shown in Figure 1, valve body 1 is connected by hollow bolt 12 and every dish 8, stator 9, bonnet 25, wherein be shaped on the runner that is communicated with inlet and liquid outlet, the outer end of hollow bolt 12 is shaped on the liquid inlet and outlet threaded connection, inner and cooresponding runner is communicated with, and structure is very compact.One end of valve body 1 is supported with and extends to exterior spool 24, the inner of spool 24 is connected by spring plate group 16 with universal driving shaft 7 one ends in being placed in valve body 1, universal driving shaft 7 is connected by finger 6 with the valve pocket 23 that is installed in valve body 1 interior rotatable switching runner, finger 6 interts in universal driving shaft 7, and valve pocket 23 is stretched at two ends.The other end of universal driving shaft 7 passes every dish 8, by the engagement of spline tooth wheel set and rotor 10 endoporus,, avoid and interfere every dish 8 for reaching the angle requirement of required swing, universal driving shaft 7 body design become step-like variable-diameter structure, and the diameter of axle of close spool 24 1 ends is greater than the diameter of axle near rotor 10 1 ends.The cylindrical of rotor 10 is shaped on the curve tooth, constitutes intermeshing curved tooth cylindrical gear pair with the pin tooth of justifying in the stator.Between valve body 1 and the valve pocket 23 collar 15 is housed, the endoporus running-fit (free-running fit) of the cylindrical of this collar and valve body 1, the cylindrical close fit of endoporus and end face and valve pocket 23 and opposing end surface contact matching, the spring plate group 16 that can prevent spool and universal driving shaft joining place is rotated automatically because of distortion hinders valve pocket 23 in the course of the work, guarantee working stability, it is energy-conservation to help falling resistance.
As shown in Figure 2, totally on the bonnet turn to control mouth A, a B and inlet P that can be communicated with and liquid outlet T by can being communicated with of constituting of four hollow bolts respectively with the spool runner with cycloidal tooth wheel set cavity volume.Be connected between P mouth and T mouth as shown in Figure 3 by 17,18,19,20 pressure-gradient control valves that constitute, its effect is to open automatically when hydraulic pressure is too high, and pressure oil is directly guided to the T mouth, realizes pressure control.In addition, also be parallel with unsteady check valve shown in Figure 4 between P mouth and T mouth, the obstruction piece steel ball 21 of this valve is positioned at ladder reducing place, vertical runner size hole, and this ladder reducing place macropore one side is installed with steel ball and left the locating dowel pin sheet 22 that plays position-limiting action at interval.When system pressure was big, steel ball cut out check valve; When not turning to, system's hydraulic pressure is lower, but steel ball 21 is in the earial drainage quick condition, helps energy-conservation and puies forward effect.
See by Fig. 5, when not turning to, P mouth pressure oil enters valve body 1 by the hollow hole of binding bolt 12, the oil groove of the inflow spool 24 by valve pocket 23, because valve pocket 23 and spool 24 do not have relative angular displacement at this moment, fluid turns back in the empty road in spool 24, the T mouth that behind valve pocket 23, leads to valve body 1, get back to system's fuel tank, owing to P this moment, do not have difference of pressure between the T mouth, deflector is in hydraulic fluid port vertical installation site down usually, steel ball 21 relies on action of gravity, be in quick condition, part oil is directly got back to the T mouth by the runner around the locating dowel pin sheet 22, thereby realizes energy-conservation.
When the power oil manipulation turns to (is the example explanation with the left steering), P mouth pressure oil enters the P mouth of valve body 1 by binding bolt 12, enter the oil groove that valve pocket 23 flows into spool 24, because and spool 24 rotation of turning left this moment, in spring plate group 16, under the effect of finger 6, valve pocket 23 has relative angular displacement with spool 24, pressed in the hole of valve pocket 23 in the runner of fluid in spool 24, radial hole through valve body 1 leads to every the pressure oilhole that coils 8, enter the cavity volume that rotor 10 and Tequ, stator 9 Meshing Pair lattice Lip river line form, the rotor 24 oil effect of being stressed produces rotation, drive universal driving shaft 7 by its female splines and do the circular cone rotation, universal driving shaft 7 drives spool 24 and further rotates (for reaching the pendulum angle requirement of universal driving shaft 7, the structure that universal driving shaft 7 is designed to serve as reasons and attenuates step by step to the other end with finger 6 coupling ends, get out of the way and mechanical interference every dish 8 mesopores, the female splines of rear by external spline teeth and rotor 10 meshes, and the female splines of rotor 10 is a straight-sided flank).Pressure oil goes to the A chamber of deflector through assignment hole, and A chamber fluid enters the steering cylinder of system, and the oil in B chamber is because the effect of A chamber oil flows back to deflector B mouth, through assignment hole to the T mouth case that deoils, thereby forms the circulation of liquid stream, realizes action.
The right steering fluid flow direction and left steering are similar, do not give unnecessary details in addition.Universal driving shaft 7 whenever turns around, and rotor 10 changes four positions, and the extrusion that five flows take place the cycloidal engagement pair cavity volume that rotor 10 and stator 9 form realizes metering.When the oil pressure that enters the P mouth when system is higher than setting value,, realize pressure control by the pressure-gradient control valve (17,18,19,20) of P mouth parallel connection.
When unpowered oil turned to, the steel ball in the check valve (21,22) that floats broke away from the stepped hole of valve body 1 automatically owing to suction function, and oil sucks from the T mouth, and is the same with aforementioned steering procedure, and the oil of displacement A, B oil pocket promotes steering cylinder and moves, and realizes manual steering.
Claims (7)
1. Geluote energy saving high efficiency hydraulic deflector, comprise by valve body, every dish, stator, the shell that bonnet is connected and constitutes, be shaped on the runner that is communicated with inlet and liquid outlet in the described shell, one end of described valve body is supported with and extends to exterior spool, the inner of described spool universal driving shaft one end interior with being placed in valve body is connected, described universal driving shaft is in transmission connection with the valve pocket that is installed in the valve body, the other end of described universal driving shaft passes every dish, by spline tooth wheel set and rotor inner hole engagement, the cylindrical of described rotor is shaped on cycloidal tooth, constitute intermeshing cycloidal tooth wheel set with the pin tooth of circle in the stator, it is characterized in that: described inlet connects liquid outlet through the check valve that floats, the obstruction piece of described unsteady check valve is being advanced, blocking-up check valve when there is the rated pressure difference in fluid, advancing, when fluid rated pressure difference disappears, but be in the earial drainage quick condition.
2. according to the described Geluote energy saving high efficiency hydraulic deflector of claim 1, it is characterized in that: described valve body is connected with employing hollow bolt between dish, stator, bonnet and is connected, the outer end of described hollow bolt is shaped on the liquid inlet and outlet mouth structure, and the inner of described hollow bolt is communicated with cooresponding runner.
3. according to claim 1 or 2 described Geluote energy saving high efficiency hydraulic deflectors, it is characterized in that: between described valve body and the valve pocket collar is housed, the endoporus running-fit of described collar cylindrical and valve body, the cylindrical close fit of described collar endoporus and valve pocket, the opposing end surface contact matching of described collar end face and valve pocket.
4. according to the described Geluote energy saving high efficiency hydraulic deflector of claim 3, it is characterized in that: the plug spare of described check valve is the steel ball that is positioned at ladder reducing place, vertical runner size hole, and macropore one side at described ladder reducing place is installed with steel ball and left locating dowel pin sheet at interval.
5. according to the described Geluote energy saving high efficiency hydraulic deflector of claim 4, it is characterized in that: be connected to pressure-gradient control valve between described inlet and the liquid outlet.
6. according to the described Geluote energy saving high efficiency hydraulic deflector of claim 5, it is characterized in that: described universal driving shaft main body is step-like variable-diameter structure, and the diameter of axle of close spool one end is greater than the diameter of axle near rotor one end.
7. according to the described Geluote energy saving high efficiency hydraulic deflector of claim 6, it is characterized in that: described universal driving shaft is connected by finger with valve pocket, and described finger interts in universal driving shaft, and valve pocket is stretched at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100390830A CN100368247C (en) | 2006-03-27 | 2006-03-27 | Geluote energy saving high efficiency hydraulic deflector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100390830A CN100368247C (en) | 2006-03-27 | 2006-03-27 | Geluote energy saving high efficiency hydraulic deflector |
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| Publication Number | Publication Date |
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| CN1824562A CN1824562A (en) | 2006-08-30 |
| CN100368247C true CN100368247C (en) | 2008-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100390830A Active CN100368247C (en) | 2006-03-27 | 2006-03-27 | Geluote energy saving high efficiency hydraulic deflector |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145712A (en) * | 2011-01-28 | 2011-08-10 | 尹凤金 | Integrated multifunctional full-hydraulic steering gear adopting cross piece connection mode |
| CN102328685A (en) * | 2011-07-13 | 2012-01-25 | 镇江液压件厂有限责任公司 | Hydraulic steering gear |
| CN103241284B (en) * | 2012-02-06 | 2016-08-10 | 镇江液压股份有限公司 | A kind of huge discharge all-hydraulic steering gear |
| CN103693101B (en) * | 2013-12-20 | 2016-04-13 | 华南理工大学 | A kind of vehicle speed variation hydraulic steering gear |
| CN110173426B (en) * | 2019-06-25 | 2020-11-03 | 杭州电子科技大学温州研究院有限公司 | Pulse-reducing balanced type seal-valve-free pressurizing device and pressure balancing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200131A (en) * | 1967-01-18 | 1970-07-29 | Zahnradfabrik Friedrichshafen | Improvements in or relating to servo steering devices, particularly for motor vehicles |
| US4495769A (en) * | 1980-08-19 | 1985-01-29 | Zahnradfabrik Friedrichshafen, Ag. | Booster power steering |
| CN2413972Y (en) * | 2000-02-24 | 2001-01-10 | 济宁伊顿液压有限公司 | Low torque cycloid all hydraulic steering |
| CN2496738Y (en) * | 2001-07-10 | 2002-06-26 | 济宁伊顿液压有限公司 | Combined valve type cycloidal hydraulic steering gear |
| CN1384013A (en) * | 2001-05-03 | 2002-12-11 | 陈大勇 | Normally closed valve type powered steering system |
-
2006
- 2006-03-27 CN CNB2006100390830A patent/CN100368247C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200131A (en) * | 1967-01-18 | 1970-07-29 | Zahnradfabrik Friedrichshafen | Improvements in or relating to servo steering devices, particularly for motor vehicles |
| US4495769A (en) * | 1980-08-19 | 1985-01-29 | Zahnradfabrik Friedrichshafen, Ag. | Booster power steering |
| CN2413972Y (en) * | 2000-02-24 | 2001-01-10 | 济宁伊顿液压有限公司 | Low torque cycloid all hydraulic steering |
| CN1384013A (en) * | 2001-05-03 | 2002-12-11 | 陈大勇 | Normally closed valve type powered steering system |
| CN2496738Y (en) * | 2001-07-10 | 2002-06-26 | 济宁伊顿液压有限公司 | Combined valve type cycloidal hydraulic steering gear |
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| CN1824562A (en) | 2006-08-30 |
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