CN203335512U - Hydraulic steering device - Google Patents
Hydraulic steering device Download PDFInfo
- Publication number
- CN203335512U CN203335512U CN2013204018109U CN201320401810U CN203335512U CN 203335512 U CN203335512 U CN 203335512U CN 2013204018109 U CN2013204018109 U CN 2013204018109U CN 201320401810 U CN201320401810 U CN 201320401810U CN 203335512 U CN203335512 U CN 203335512U
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- CN
- China
- Prior art keywords
- valve
- valve body
- opening
- oil
- hydraulic steering
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- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic steering device and belongs to the hydraulic technical field. An inner hole of a valve body of the steering device is provided with a valve sleeve. A valve element with a runner is installed in the valve sleeve. A cycloid pin wheel engagement pair is installed at one end of the valve body. A universal driving shaft is installed in the valve element. One end of the universal driving shaft is connected with the valve sleeve through a pull pin for forming a rotary valve flow distributing structure, and the other end of the universal driving shaft is connected with a rotor of the cycloid pin wheel engagement pair for forming a cycloid pin metering motor. The valve body is provided with an oil inlet, an oil return opening, a left oil opening, a right oil opening and a signal oil opening. The signal oil opening is communicated with the runner in the valve body through a safety valve. The valve element of the safety valve is provided with a body forming a safety valve plug. The outer circle of the body is provided with external threads combined with the valve body in a screwing mode. The inner end of the body is provided with a counter bore forming a spring base. The oil inlet, the oil return opening, the left oil opening, the right oil opening and the signal oil opening are formed in the same outer surface of the valve body. The hydraulic steering device is compact in structure and remarkably improves the process property of location and the like during machining.
Description
Technical field
The utility model relates to a kind of commutator, and especially a kind of hydraulic steering gear, belong to the hydraulics field.
Background technique
Hydraulic steering gear is a kind of the steering gear generally applied on engineering machinery, farm machinery and other engineering vehicles, main thrust plate in being arranged on valve body, turn the parts such as stator pair, safety valve and form, be shaped with oil inlet P, oil return inlet T, left oil port A, right oil port B on valve body, and signal hydraulic fluid port Ls.
In prior art, the spring seat of safety valve, lock bolt, stifled three parts of safety valve are package assembly, need at first separately processing respectively, then assembling.This kind of structure is for convenience of assembling, must between all parts, reserve certain space, therefore the length of safety valve is longer, after result causes machining four hydraulic fluid port A, B, P, T on valve body, there is no enough spatial placement Ls mouths in same plane, have to this mouthful is set to the plane vertical with four hydraulic fluid ports (Chinese patent that is 200820040665.5 referring to application number).So, not only add and increased difficulty to the installation of fixture man-hour, and in installation process, the positioned in alignment of hydraulic fluid port has also been increased to difficulty.
Summary of the invention
The purpose of this utility model is: the problem existed for above-mentioned prior art, by architecture advances, proposes the more convenient hydraulic steering gear of a kind of compact structure, processing and installation.
In order to reach above purpose, hydraulic steering gear of the present utility model comprises valve body, and the endoporus of described valve body is equipped with valve pocket, and the spool that is shaped with runner is installed in described valve pocket; One end of described valve body is equipped with cycloidal pinion engaged pair; In described spool, couple axle is housed; One end of described couple axle is connected with valve pocket by finger, forms the rotary valve flow distributing structure; The other end of described couple axle is connected with the rotor of cycloidal pinion engaged pair, forms the cycloid measure motor; Be shaped with filler opening, return opening, left oil port, right oil port and signal hydraulic fluid port on described valve body, described signal hydraulic fluid port is communicated with the valve inner runner by safety valve, its improvements are: the spool of described safety valve has the stifled main body of the safety valve of formation, the cylindrical of described main body has the outside thread screwed with valve body, the inner of described main body has the counterbore that forms spring seat, and described filler opening, return opening, left oil port, right oil port and signal hydraulic fluid port are positioned on the same outer surface of described valve body.
The utility model is because the spring seat by safety valve, lock bolt, safety valve block up three parts for being designed to one, not only time processing forms, simple process, and shortened the length of safety valve, make the signal hydraulic fluid port can be with other hydraulic fluid port in same outer surface, thereby make the diverter structure compactness, the operational characteristiies such as location that add man-hour significantly improve.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The sectional view that Fig. 1 is the utility model front view.
Fig. 2 is plan view of the present utility model.
Embodiment
As depicted in figs. 1 and 2, the endoporus of valve body is equipped with valve pocket to the hydraulic steering gear of the present embodiment, and the spool that is shaped with runner is installed in valve pocket; One end of valve body is equipped with cycloidal pinion engaged pair; Couple axle is housed in spool; One end of couple axle is connected with valve pocket by finger, forms the rotary valve flow distributing structure; The other end of couple axle is connected with the rotor of cycloidal pinion engaged pair, forms the cycloid measure motor; Be shaped with filler opening, return opening, left oil port, right oil port and signal hydraulic fluid port on valve body, the signal hydraulic fluid port is communicated with the valve inner runner by safety valve, and these are same as the prior art, can be referring to the patent documentation of background technique, therefore do not describe in detail.
Safety valve 1 spool be arranged on valve body 2 has the stifled main body of the safety valve of formation, the cylindrical of this main body has the outside thread 1-2 screwed with valve body, the inner has the counterbore 1-3 that forms spring seat, the plug 1-1 that outer end is the embedding sealing circle, and the exterior edge face of this plug has inner hexagonal hole.In figure, 3 is inner flow passages of communications signals hydraulic fluid port.
As shown in Figure 2, oil inlet P, oil return inlet T, left oil port A, right oil port B and signal hydraulic fluid port Ls are positioned on the same outer surface of valve body 2.
Organically combine as a wholely because the spring seat by original safety valve, lock bolt, safety valve are stifled, can disposablely process, thereby make signal hydraulic fluid port and other four hydraulic fluid port can be in the same plane.As a result, both easy processing, also be convenient to install.
Claims (3)
1. a hydraulic steering gear, comprise valve body, and the endoporus of described valve body is equipped with valve pocket, and the spool that is shaped with runner is installed in described valve pocket; One end of described valve body is equipped with cycloidal pinion engaged pair; In described spool, couple axle is housed; One end of described couple axle is connected with valve pocket by finger, forms the rotary valve flow distributing structure; The other end of described couple axle is connected with the rotor of cycloidal pinion engaged pair, forms the cycloid measure motor; Be shaped with filler opening, return opening, left oil port, right oil port and signal hydraulic fluid port on described valve body, described signal hydraulic fluid port is communicated with the valve inner runner by safety valve, it is characterized in that: the spool of described safety valve has the stifled main body of the safety valve of formation, the cylindrical of described main body has the outside thread screwed with valve body, the inner of described main body has the counterbore that forms spring seat, and described filler opening, return opening, left oil port, right oil port and signal hydraulic fluid port are positioned on the same outer surface of described valve body.
2. hydraulic steering gear according to claim 1, is characterized in that: the plug that the outer end of described main body is the embedding sealing circle.
3. hydraulic steering gear according to claim 2, it is characterized in that: the exterior edge face of described plug has inner hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204018109U CN203335512U (en) | 2013-07-08 | 2013-07-08 | Hydraulic steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204018109U CN203335512U (en) | 2013-07-08 | 2013-07-08 | Hydraulic steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335512U true CN203335512U (en) | 2013-12-11 |
Family
ID=49704189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204018109U Expired - Lifetime CN203335512U (en) | 2013-07-08 | 2013-07-08 | Hydraulic steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335512U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179333A (en) * | 2015-09-16 | 2015-12-23 | 郭仁发 | Hydraulic transformer |
| CN106015178A (en) * | 2016-08-05 | 2016-10-12 | 芜湖中意液压科技股份有限责任公司 | Full-hydraulic steering gear with compact safety valve |
| CN106314532A (en) * | 2015-06-23 | 2017-01-11 | 镇江液压股份有限公司 | Composite metering type hydraulic steering unit |
| CN109131550A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity |
| CN109162974A (en) * | 2018-09-05 | 2019-01-08 | 芜湖中意液压科技股份有限责任公司 | A kind of hydraulic steering gear LS oil circuit is integrated with one-way throttle valve |
-
2013
- 2013-07-08 CN CN2013204018109U patent/CN203335512U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314532A (en) * | 2015-06-23 | 2017-01-11 | 镇江液压股份有限公司 | Composite metering type hydraulic steering unit |
| CN105179333A (en) * | 2015-09-16 | 2015-12-23 | 郭仁发 | Hydraulic transformer |
| CN106015178A (en) * | 2016-08-05 | 2016-10-12 | 芜湖中意液压科技股份有限责任公司 | Full-hydraulic steering gear with compact safety valve |
| CN106015178B (en) * | 2016-08-05 | 2018-01-30 | 芜湖中意液压科技股份有限责任公司 | All-hydraulic steering gear with compact safety valve |
| CN109131550A (en) * | 2018-09-05 | 2019-01-04 | 芜湖中意液压科技股份有限责任公司 | A kind of adjustable Flow amplification hydraulic steering gear of discharge capacity |
| CN109162974A (en) * | 2018-09-05 | 2019-01-08 | 芜湖中意液压科技股份有限责任公司 | A kind of hydraulic steering gear LS oil circuit is integrated with one-way throttle valve |
| CN109131550B (en) * | 2018-09-05 | 2021-05-07 | 芜湖中意液压科技股份有限责任公司 | Displacement-adjustable flow amplification hydraulic steering gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212005 No. 300 Xu Nan avenue, Jiangsu, Zhenjiang Patentee after: ZHENJIANG HYDRAULICS Co.,Ltd. Address before: 212005 No. 300 Xu Nan avenue, Jiangsu, Zhenjiang Patentee before: ZHENJIANG HYDRAULICS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |