CN2910722Y - High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear - Google Patents
High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear Download PDFInfo
- Publication number
- CN2910722Y CN2910722Y CN 200620074376 CN200620074376U CN2910722Y CN 2910722 Y CN2910722 Y CN 2910722Y CN 200620074376 CN200620074376 CN 200620074376 CN 200620074376 U CN200620074376 U CN 200620074376U CN 2910722 Y CN2910722 Y CN 2910722Y
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- valve
- rotor
- steering gear
- cycloidal
- hydraulic steering
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Abstract
The utility model relates to a high terminal sensing, torque cycloid rotating valve type full hydraulic steering gear, belonging to hydraulic drive technical field. The end of the valve of the steering gear is provided with a front cover, the other end is provided with a cycloid pin wheel meshing pair; a valve housing of a inner bore of the valve is provided with a spool with an interval channel, and the spool is inside provided with a couple shaft; the end of the couple shaft is connected with the valve housing through a pin, forming a rotating valve distributing mechanism which is cooperating with the interval channel; the other end of the couple shaft is connected with the rotor of the cycloid pin wheel meshing pair through the spline gear, forming a cycloid measuring motor; at least one end face of a side of a rotor is provided with a ring sealing groove, wherein, the sealing groove is provided with a support plate with one side outwards and the other side leaning against a sealing ring in the groove, the bottom of the ring sealing groove is communicated with the outer surface of the rotor through an opening. The utility model can make the support plate lifted all along during processing, thereby guaranteeing the reliable sealing between the rotor and the adjacent fixed assembly and achieving the high terminal sensing, torque function of the full hydraulic steering gear.
Description
Technical field
The utility model relates to a kind of hydraulic steering gear, and especially a kind of off-the-road vehicle whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense belongs to the hydrostatic drive field of engineering technology.
Background technology
Cycloid steering valve all-hydraulic steering gear is the commonly used driving device of mechanical energy to the conversion of hydraulic pressure energy, and the core component of cycloid steering valve all-hydraulic steering gear is cycloidal pinion engaged pair and rotary valve flow distributing mechanism.Wherein, the effect of cycloidal pinion engaged pair is the metering of hydraulic flow, and the effect of rotary valve is the direction of control oil flow.Usually, cycloid steering valve all-hydraulic steering gear is mainly by valve body (3), spool (7), valve pocket (6), finger (5), spring plate group (4), universal driving shaft (8), form every dish (14), stator (12), rotor (9), bonnet (11), steel ball (15) etc.Because it has advantages such as volume is little, weight per unit power is light, efficient is high, easy realization, therefore obtained using comparatively widely.
Yet the terminal point slippage and the steering hydraulic noise height of existing cycloid steering valve all-hydraulic steering gear are when being applied on the vehicle, the driver differentiates the feel of steering procedure and is difficult to accurately, therefore the in-use performance of complete machine is not good enough, and the temperature rise control of system's fluid is bad, is easy to generate energy dissipation.Tracing it to its cause, is due to motion sealing problem between rotor and the adjacent fixed part does not obtain properly settling.
The utility model content
The purpose of this utility model is: the problem at above prior art exists, be adjacent fixing hermetically-sealed construction by improving rotor, and a kind of whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense is proposed.
In order to reach above purpose, valve body one end of whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense of the present utility model is equipped with the protecgulum that supports the spool termination, and the other end is equipped with at the cycloidal pinion engaged pair between dish and bonnet; The spool that is shaped on runner is installed in the valve pocket of valve body inner bore, universal driving shaft is housed in the spool; One end of described universal driving shaft is connected with valve pocket by finger, forms the rotary valve flow distributing mechanism that cooperates with valve flowing channel; The other end of described universal driving shaft is connected with the rotor of cycloidal pinion engaged pair by the spline tooth wheel set, constitutes cycloid metering motor; Its improvements are that at least one side end face of described rotor is shaped on annular seal groove, one side are housed outwardly in the described seal groove, and another side leans against the supporting slice of groove inner seal ring, and the bottom land passing hole channel of described annular seal groove communicates with the outside face of rotor.
Like this, during the rotor rotary work, the side end face seal groove is introduced pressure oil through the duct rear end of seal ring, make it near supporting slice, supporting slice is held up in the course of the work all the time, thereby guarantee the positiver sealing between rotor and the adjacent fixed part, and then realize the high terminal point sense moment of torsion function of all-hydraulic steering gear.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the end face structure scheme drawing (B-B) of cycloidal pinion engaged pair among Fig. 1.
Fig. 3 is the A-A section-drawing of Fig. 2.
Fig. 4 is the partial enlarged drawing of Fig. 3.
The specific embodiment
Embodiment one
In conjunction with above-mentioned drawings and Examples, the utility model is carried out following detailed description.
Vital parts among Fig. 1 has: cross contiguous block 1, protecgulum 2, valve body 3, spring leaf 4, finger 5, valve pocket 6, spool 7, universal driving shaft 8, rotor 9, limited post 10, bonnet 11, stator 12, O RunddichtringO 13 is every dish 14, steel ball 15, big back-up ring 16, needle roller thrust bearing 17, little back-up ring 18, O RunddichtringO 19, X RunddichtringO 20, O RunddichtringO 21.Whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense basic structure among this figure is same as the prior art, and the left end of valve body 3 is equipped with the protecgulum 2 that supports spool 7 terminations, and right-hand member is equipped with at the cycloidal pinion engaged pair between dish 14 and bonnet 11.Valve pocket 6 is housed in the endoporus of valve body 3, the spool 7 that is shaped on runner is installed in this valve pocket, rotating universal driving shaft 8 is installed in the spool.One end of universal driving shaft 8 is connected with valve pocket 6 by the finger 5 that interts therein, and valve pocket 6 is connected mutually by the spring leaf 4 that is inserted in its end and spool 7 spring grooves, forms the rotary valve flow distributing mechanism that cooperates with valve flowing channel.The other end of universal driving shaft 8 is connected (referring to Fig. 2) by the spline tooth wheel set with rotor 9 in the cycloidal pinion engaged pair, and the formation cycloid measures motor.The end face that rotor relies on bonnet one side is shaped on annular seal groove (referring to Fig. 3 and Fig. 4), the supporting slice 23 that be equipped with in the sealing groove simultaneously outwardly, another side leans against groove inner seal ring 22.The bottom land of annular seal groove is offered aperture 25, and this hole communicates with the outside face of rotor 9 by the radially duct 25 at a place.
Conclusion is got up, and the whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense of present embodiment comprises direction control rotary valve group, cycloid metering motor, hydraulic pressure flow-distribution mechanism.Direction control rotary valve group mainly places valve pocket, valve pocket to place valve body, spring leaf to place that bending combines spool meta return in the spring groove of spool and valve pocket by spool.Protecgulum is connected in the valve body front end by screw, hydraulic pressure flow-distribution mechanism and cycloid metering motor and bonnet by bolted connection in valve rear end.Cycloid metering motor is made up of the Meshing Pair of sealed stator and rotor.The Meshing Pair of sealed stator and rotor places bore of stator by rotor, and seal ring and supporting slice are loaded in the rotor end-face seal groove, towards bonnet one side.The side end face passing hole channel (24) of rotor is introduced the seal groove of seal ring and supporting slice with pressure oil, guarantees supporting slice in the course of the work, is held up all the time, realize supporting slice all the time with the bonnet sealing of fitting.
Facts have proved, technique scheme has guaranteed that all-hydraulic steering gear has desirable leak-tight seal performance, therefore terminal point sense moment of torsion is obvious, the driver is accurately differentiated the feel of steering procedure, avoid maloperation, promote the in-use performance of complete machine, can make the temperature rise of system oil liquid be controlled energy savings simultaneously.In a word, the whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense of present embodiment has the following advantages:
1. increased substantially the terminal point sense moment of torsion of all-hydraulic steering gear;
2. can improve the resolution accuracy rate of driver, intensified response speed effect to the steering procedure feel;
3. help to reduce the heating of steering swivel system, improve performance;
4. simple in structure, be convenient to manufacture, help cost-cutting.
Claims (4)
1, a kind of whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense, valve body one end are equipped with the protecgulum that supports the spool termination, and the other end is equipped with at the cycloidal pinion engaged pair between dish and bonnet; The spool that is shaped on runner is installed in the valve pocket of valve body inner bore, universal driving shaft is housed in the spool; One end of described universal driving shaft is connected with valve pocket by finger, forms the rotary valve flow distributing mechanism that cooperates with valve flowing channel; The other end of described universal driving shaft is connected with the rotor of cycloidal pinion engaged pair by the spline tooth wheel set, constitutes cycloid metering motor; It is characterized in that: at least one side end face of described rotor is shaped on annular seal groove, the supporting slice that be equipped with in the described seal groove simultaneously outwardly, another side leans against the groove inner seal ring, and the bottom land passing hole channel of described annular seal groove communicates with the outside face of rotor.
2, according to the described whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense of claim 1, it is characterized in that: the end face that described rotor relies on bonnet one side is shaped on annular seal groove, the bottom land of described seal groove is offered aperture, and described aperture communicates with the outside face of rotor by the radially duct at a place.
3, according to the described whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense of claim 2, it is characterized in that: seal ring in the described annular seal groove and supporting slice adopt the manufacturing of hard oil proof rubber respectively, and the hardness of supporting slice is higher than seal ring.
4, according to claim 1,2 or 3 described whole hydraulic steering gear of cycloidal steering valve of torsion moment of high destination sense, it is characterized in that: described valve pocket is connected mutually by the spring leaf that is inserted in its end and the valve core spring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074376 CN2910722Y (en) | 2006-07-03 | 2006-07-03 | High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074376 CN2910722Y (en) | 2006-07-03 | 2006-07-03 | High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2910722Y true CN2910722Y (en) | 2007-06-13 |
Family
ID=38132581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620074376 Expired - Lifetime CN2910722Y (en) | 2006-07-03 | 2006-07-03 | High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2910722Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314530A (en) * | 2015-06-26 | 2017-01-11 | 镇江液压股份有限公司 | Accurate oil distribution hydraulic steering device |
| CN106314529A (en) * | 2015-06-25 | 2017-01-11 | 镇江液压股份有限公司 | Full-hydraulic rear wheel steering accurate positioning control system and method |
-
2006
- 2006-07-03 CN CN 200620074376 patent/CN2910722Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314529A (en) * | 2015-06-25 | 2017-01-11 | 镇江液压股份有限公司 | Full-hydraulic rear wheel steering accurate positioning control system and method |
| CN106314529B (en) * | 2015-06-25 | 2019-03-05 | 镇江液压股份有限公司 | A kind of all-hydraulic rear-axle steering precise positioning control system and position control method |
| CN106314530A (en) * | 2015-06-26 | 2017-01-11 | 镇江液压股份有限公司 | Accurate oil distribution hydraulic steering device |
| CN106314530B (en) * | 2015-06-26 | 2019-05-10 | 镇江液压股份有限公司 | It is a kind of accurately to match oily hydraulic steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang Dadi Hydraulic Liability Co., Ltd. Assignor: Zhenjiang Hydraulic Part Factory Co., Ltd. Contract fulfillment period: 2007.6.13 to 2016.7.3 Contract record no.: 2009320000602 Denomination of utility model: High terminal sensing, torque cycloid rotating valve type full hydraulic steering gear Granted publication date: 20070613 License type: exclusive license Record date: 20090417 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.6.13 TO 2016.7.3; CHANGE OF CONTRACT Name of requester: ZHENJIANG DADI HYDRAULIC PRESSURE CO.,LTD. Effective date: 20090417 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070613 |
|
| EXPY | Termination of patent right or utility model |