CN205930880U - Heavily block emergency steering hydro -cylinder - Google Patents
Heavily block emergency steering hydro -cylinder Download PDFInfo
- Publication number
- CN205930880U CN205930880U CN201620873115.6U CN201620873115U CN205930880U CN 205930880 U CN205930880 U CN 205930880U CN 201620873115 U CN201620873115 U CN 201620873115U CN 205930880 U CN205930880 U CN 205930880U
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- Prior art keywords
- cylinder body
- hydraulic fluid
- fluid port
- cylinder
- oil pipe
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- Expired - Fee Related
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Abstract
The utility model provides a heavily block emergency steering hydro -cylinder, relates to automobile power -assisted steering field, and including first cylinder body and second cylinder body, first cylinder body is through an adapter sleeve and second cylinder body coaxial coupling, the one end of first cylinder body is equipped with first hydraulic fluid port, and the other end is equipped with the second hydraulic fluid port, the fixed bidirectional relief valve that is provided with on the first cylinder body, a valve port of bidirectional relief valve passes through oil pipe UNICOM with first hydraulic fluid port, another valve port and the second hydraulic fluid port of bidirectional relief valve pass through oil pipe UNICOM. The utility model discloses can effectively protect heavily block emergency steering hydro -cylinder, prolong its life.
Description
Technical field
The utility model is related to motor turning power-assisted field, and more particularly, to one kind is used for heavy-duty car hydraulic emergency steering system
Steering cylinder in system.
Background technology
Chinese utility model patent CN204801876U discloses a kind of emergent steering cylinder of heavy truck, and it is arranged before and after including
Cylinder body A and cylinder body B, both are coaxially connected through adapter sleeve；In this utility model patent, the emergent steering cylinder of heavy truck can connect two
Cover independent hydraulic-driven oil circuit, after a hydraulic-driven oil circuit breaks down, another hydraulic-driven oil circuit is opened, to ensure weight
Type truck hydraulic steering system normally runs.
The emergent steering cylinder of this heavy truck has first, second, third and fourth totally four hydraulic fluid ports, in normal working condition
Under, the 3rd hydraulic fluid port and the 4th hydraulic fluid port connect steering pump, because the steering pump in main working oil path itself is connected with overflow valve,
Produce compression shock thus without steering cylinder that heavy truck is met an urgent need；And the first hydraulic fluid port and the second hydraulic fluid port are to make under emergency rating
With that is to say, that when the 3rd hydraulic fluid port and the 4th hydraulic fluid port cannot complete work, the first hydraulic fluid port and the second hydraulic fluid port are operated, but should
What in anxious oil circuit, the first hydraulic fluid port and the second hydraulic fluid port connected is high-pressure plunger pump, because high-pressure plunger pump itself does not connect safety
Valve, steering cylinder of therefore heavy truck being met an urgent need produces compression shock, the life-span of the emergent steering cylinder of impact heavy truck.
Utility model content
The purpose of this utility model is to provide a kind of heavy truck to meet an urgent need steering cylinder, thus solving present in prior art
Foregoing problems.
To achieve these goals, the technical solution adopted in the utility model is as follows：A kind of heavy truck is met an urgent need steering cylinder, bag
Include the first cylinder body and the second cylinder body, it is coaxially connected with this second cylinder body that this first cylinder body passes through an adapter sleeve；This first cylinder body
One end is provided with the first hydraulic fluid port, and the other end is provided with the second hydraulic fluid port；It is fixedly installed a bidirectional relief valve, this is two-way on this first cylinder body
One valve port of overflow valve passes through oil pipe UNICOM with this first hydraulic fluid port；Another valve port of this bidirectional relief valve is led to this second hydraulic fluid port
Cross oil pipe UNICOM.
Preferably, this bidirectional relief valve argon arc welding is welded and fixed on the external cylindrical surface being arranged at this first cylinder body.
Preferably, this oil pipe is seamless steel pipe.
Preferably, this oil pipe and the valve port of this bidirectional relief valve are welded to connect.
Preferably, this oil pipe and this first hydraulic fluid port are welded to connect；This oil pipe is welded to connect with this second hydraulic fluid port.
The beneficial effects of the utility model are：The utility model increased bidirectional flooding on heavy truck meets an urgent need steering cylinder
Valve, during work, the oil pressure relief of bidirectional relief valve is set to the rated pressure of steering actuation cylinder, when high-pressure plunger pump offer
After hydraulic pressure exceedes this rated pressure value, or the impact peak value of pressure oscillation exceedes this rated pressure value, this pair
Start overflow to overflow valve, make the pressure of the emergent steering cylinder of heavy truck be less than this rated pressure, protect heavy truck to meet an urgent need and turn to
Oil cylinder, extends its service life.
Brief description
Fig. 1 is a kind of front view of embodiment of the utility model；
Fig. 2 is the A direction view of the utility model embodiment illustrated in fig. 1；
Reference：1- first cylinder body, 2- second cylinder body, 3- adapter sleeve, 4- end cap, 5- fairlead, 6- first piston, 7-
Second piston, 8- first hydraulic fluid port, 9- second hydraulic fluid port, 10- the 3rd hydraulic fluid port, 11- the 4th hydraulic fluid port, 12- bidirectional relief valve, 13,14-
Oil pipe, 15- piston rod.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.It should be appreciated that specific embodiment described herein is only in order to explain this practicality
New, it is not used to limit the utility model.
Fig. 1 is a kind of front view of embodiment of the utility model.
The steering cylinder as shown in figure 1, a kind of heavy truck is met an urgent need, including the first cylinder body 1 and the second cylinder body 2, this first cylinder body 1 leads to
Cross an adapter sleeve 3 coaxially connected with this second cylinder body 2；It is equipped with piston rod 15 inside first cylinder body 1 and the second cylinder body 2；First
The end of cylinder body 1 seals through end cap 4, end cap 4 rear side connecting ball head assembly；The end of the second cylinder body 2 is sealed by fairlead 5,
Piston rod 15 passes in this fairlead 5, the end connecting ball head assembly of piston rod 15；It is provided with first in first cylinder body 1 to live
Plug 6, is provided with second piston 7, piston rod 15 is fixedly connected with first piston 6, second piston 7 in the second cylinder body 2.
Fig. 2 is the A direction view of the utility model embodiment illustrated in fig. 1.
One end of this first cylinder body 1 is provided with the first hydraulic fluid port 8, and the other end is provided with the second hydraulic fluid port 9；As shown in Fig. 2 this first cylinder
One bidirectional relief valve 12 is fixedly installed on body 1, a valve port of this bidirectional relief valve 12 passes through oil pipe 13 with this first hydraulic fluid port 8
UNICOM；Another valve port of this bidirectional relief valve 12 and this second hydraulic fluid port 9 pass through oil pipe 14 UNICOM, bidirectional relief valve 12 again with high pressure
Plunger displacement pump UNICOM, forms emergent oil circuit.
This second cylinder body 2 one end is provided with the 3rd hydraulic fluid port 10, and the other end is provided with the 4th hydraulic fluid port 11；3rd hydraulic fluid port 10 and the 4th oil
Mouth 11 connection steering pumps, form main working oil path.
As preferred embodiment, this bidirectional relief valve 12 argon arc welding is welded and fixed and is arranged at the cylindrical of this first cylinder body 1
On cylinder.
This oil pipe 13,14 is seamless steel pipe or hydralic hose, and the valve port of this oil pipe 13,14 and this bidirectional relief valve 12 can
With threaded by hydraulic joint, those skilled in the art of the present technique can also be using other connected modes.
As preferred embodiment, this oil pipe 13,14 is seamless steel pipe, this oil pipe 13,14 and this bidirectional relief valve 12
Valve port is welded to connect, and this oil pipe 13 is welded to connect with this first hydraulic fluid port 8；This oil pipe 14 is welded to connect with this second hydraulic fluid port 9.
By using technique scheme disclosed in the utility model, having obtained following beneficial effect：The utility model
Increased bidirectional relief valve 12 on heavy truck meets an urgent need steering cylinder, during work, the oil pressure relief of bidirectional relief valve 12 is set to
The rated pressure of the emergent steering cylinder of heavy truck, when the hydraulic pressure that high-pressure plunger pump provides exceedes this rated pressure value, or
After the impact peak value of pressure oscillation exceedes this rated pressure value, this bidirectional relief valve 12 starts overflow, makes heavy truck answer racing
It is less than this rated pressure to the pressure of oil cylinder, protect heavy truck to meet an urgent need steering cylinder, extend its service life.
The above is only preferred embodiment of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should regard protection domain of the present utility model.
Claims (5)
1. the emergent steering cylinder of a kind of heavy truck, including the first cylinder body（1）With the second cylinder body（2）, described first cylinder body（1）By one
Adapter sleeve（3）With described second cylinder body（2）Coaxially connected；
Described first cylinder body（1）One end be provided with the first hydraulic fluid port（8）, the other end is provided with the second hydraulic fluid port（9）；It is characterized in that,
Described first cylinder body（1）On be fixedly installed a bidirectional relief valve（12）, described bidirectional relief valve（12）A valve port
With described first hydraulic fluid port（8）By oil pipe（13）UNICOM；Described bidirectional relief valve（12）Another valve port and described second hydraulic fluid port
（9）By oil pipe（14）UNICOM.
2. heavy truck according to claim 1 meets an urgent need steering cylinder it is characterised in that described bidirectional relief valve（12）Argon arc welding
It is welded and fixed and be arranged at described first cylinder body（1）External cylindrical surface on.
3. heavy truck according to claim 1 meets an urgent need steering cylinder it is characterised in that described oil pipe（13、14）For seamless steel
Pipe.
4. heavy truck according to claim 3 meets an urgent need steering cylinder it is characterised in that described oil pipe（13、14）Double with described
To overflow valve（12）Valve port be welded to connect.
5. heavy truck according to claim 4 meets an urgent need steering cylinder it is characterised in that described oil pipe（13）With the described first oil
Mouthful（8）It is welded to connect；Described oil pipe（14）With described second hydraulic fluid port（9）It is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620873115.6U CN205930880U (en) | 2016-08-13 | 2016-08-13 | Heavily block emergency steering hydro -cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620873115.6U CN205930880U (en) | 2016-08-13 | 2016-08-13 | Heavily block emergency steering hydro -cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205930880U true CN205930880U (en) | 2017-02-08 |
Family
ID=57919925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620873115.6U Expired - Fee Related CN205930880U (en) | 2016-08-13 | 2016-08-13 | Heavily block emergency steering hydro -cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205930880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475773A (en) * | 2022-04-15 | 2022-05-13 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
-
2016
- 2016-08-13 CN CN201620873115.6U patent/CN205930880U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475773A (en) * | 2022-04-15 | 2022-05-13 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
| CN114475773B (en) * | 2022-04-15 | 2022-07-01 | 太重集团榆次液压工业(济南)有限公司 | Automatic steering power-assisted centering device for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190813 |