CN202320474U - Automobile steering power cylinder assembly - Google Patents
Automobile steering power cylinder assembly Download PDFInfo
- Publication number
- CN202320474U CN202320474U CN 201120485142 CN201120485142U CN202320474U CN 202320474 U CN202320474 U CN 202320474U CN 201120485142 CN201120485142 CN 201120485142 CN 201120485142 U CN201120485142 U CN 201120485142U CN 202320474 U CN202320474 U CN 202320474U
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- CN
- China
- Prior art keywords
- cylinder
- assembly
- cylinder barrel
- piston
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an automobile steering power cylinder assembly comprising a cylinder barrel assembly, a piston assembly, a cylinder cover assembly and a threaded piston rod, wherein the cylinder barrel assembly comprises a cylinder barrel taking the shape of a hollow cylinder; a threaded connecting cover is welded at one end of the cylinder barrel; a left oil inlet/outlet joint and a right oil outlet/inlet joint are welded on the wall of the cylinder barrel; the piston assembly is fixed on the piston rod through a self-locking nut; the left oil inlet/outlet joint and the right oil outlet/inlet joint are arranged on two sides of the piston assembly respectively; the cylinder cover assembly is fixed on the cylinder barrel through a hole-used steelwire check ring and a shaft-used steelwire check ring; and the whole steering power cylinder has high leak tightness, is sealed through welding, adopts a re-designed internal structure, and comprises a left cavity and a right cavity. When a driver rotates a steering wheel, oil discharged from an oil pump enters into the left cavity or the right cavity through the control valve under the pushing of the control valve; and pressure is formed under the action of ground steering resistance, so that a high-pressure cavity and a low-pressure cavity are formed to serve a steering power assisting function.
Description
Technical field
The utility model relates to autotruck power steering device, is specifically related to a kind of motor turning actuator cylinder assembly.
Background technology
On autotruck, use power cylinder, can reduce the motor turning hand-power greatly, alleviate the labour intensity of chaufeur, improve the sensitieness of vehicle mobility and driving.According to the difference of flow mode in the system, can be divided into gerotor type hydraulic booster and permanent current formula hydraulic booster.The characteristics of gerotor type hydraulic booster system are that no matter bearing circle is in center position or steering position, bearing circle keeps static or are rotating that the fluid in the system pipeline always keeps high pressure conditions; Though and the power steerig pump of permanent current formula hydraulic power-assisted steering system is worked all the time, when hydraulic booster system was not worked, oil pump was in idling conditions, and the load of pipeline is littler than gerotor type, and present most of hydraulic power-assisted steering system all adopts the permanent current formula.Can see that no matter which kind of mode, power steerig pump all is indispensable parts, it can be converted into the engine output power of input the pressure of fluid.Whole power cylinder assembly has high leakproofness, particularly passes in and out oily joint and need improve sealing intensity, and its in-to-in oil liquid pressure is high, need possess dynamic seal and cooperate.
The utility model content
The purpose of the utility model is to provide a kind of motor turning actuator cylinder assembly, and it passes in and out oily joint and has high sealing intensity and high leakproofness, and its inside possesses the dynamic seal cooperation.
For achieving the above object; The technical scheme of the utility model is: motor turning actuator cylinder assembly; Comprise cylinder barrel assembly, piston assembly, cylinder cap assembly and threaded piston rod; Said cylinder barrel assembly comprises the cylinder barrel of hollow circular cylinder, and an end of cylinder barrel is welded with a threaded connection cover, two oily joints of turnover about being welded with on the cylinder barrel wall; Fixed a piston assembly through self lock nut on the said piston rod, said piston assembly comprises that lead ring and the hole between piston, piston and the inner wall of cylinder use combined seal ring, and the oily joint of left side turnover and the oily joint of right turnover lay respectively at the both sides of piston assembly; Said cylinder cap assembly comprises the axle that is provided with between cylinder cap, cylinder cap and the piston rod with combined seal ring and self-lubricating bearing, and said cylinder cap assembly is fixed on the cylinder barrel with elastic spring and an axle-steel silk back-up ring through a hole.
When adopting technique scheme, connection cover with about two oily joints of turnover and cylinder barrel weld together, hermetically-sealed construction is a welding manner, helps improving sealing intensity.Threaded connection cover is connected with flexural pivot with piston rod is convenient.And two chambers about whole cylinder barrel assembly is divided into by piston assembly.Left chamber passes in and out oily joint through a left side and communicates with the oil pump oil return line, and right chamber passes in and out oily joint through the right side and communicates with the oil pump oil return line, and whole power cylinder has high leakproofness, through welded seal and design its inner structure again.When the chaufeur steering wheel rotation, promote down in control cock, the fluid that oil pump is discharged is a chamber wherein, two chambeies through about the control cock entering; Under the cornering resistance effect of ground, produce pressure; Promote piston assembly, form high-low pressure two chambeies, difference of pressure works the power-assisted effect that turns to.Reduce the motor turning hand-power greatly, alleviate the labour intensity of chaufeur, improve the sensitieness of vehicle mobility and driving.
Further, the oily joint of said left turnover all is equipped with the screw thread obstruction with the oily joint of right turnover.
Further, the external screw-thread of said piston rod and connection cover is equipped with protecting sleeve for thread.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of the utility model motor turning actuator cylinder assembly embodiment.
The specific embodiment
As shown in Figure 1; The utility model motor turning actuator cylinder assembly; Comprise cylinder barrel assembly 3, piston assembly 4, cylinder cap assembly 5 and threaded piston rod 6; Said cylinder barrel assembly 3 comprises the cylinder barrel 31 of hollow circular cylinder, and an end of cylinder barrel 31 is welded with a threaded connection cover 32, is welded with oily joint 311 of left side turnover and the oily joint 312 of left side turnover on the wall of cylinder barrel 31; Fixed a piston assembly 4 through self lock nut 61 on the said piston rod 6, said piston assembly 4 comprises that the hole of piston 41, lead ring 42 and nitrile rubber tetrafluoroethylene is with combined seal ring 43.Oily joint 311 of left side turnover and the oily joint 312 of right turnover lay respectively at the both sides of piston assembly 4, and oily joint 311 of said left side turnover and the oily joint 312 of right turnover all are equipped with screw thread and stop up; Said cylinder cap assembly 5 comprises that cylinder cap 51, axle are with combined seal ring 52 and self-lubricating bearing 53.Because the interior oil hydraulic coupling is high, need dynamic seal to cooperate, common O shape circle, Y shape circle sealing property fail to satisfy requirements, and the axle that therefore adopts the government rubber tetrafluoroethylene at the cylinder cap 51 and the sealing position of piston rod 6 is with combined seal ring 52.The self-lubricating bearing 53 that also has a composite material here, this part are pressed into cylinder cap 51 backs and cylinder cap 51 accurate applyings, support and seal this position better.Above-mentioned cylinder cap assembly 5 belongs to static seal with sealing, the piston assembly 4 of cylinder barrel 31 with the sealing of piston 41, so adopt little O-ring seals 44 and big O RunddichtringO 55 sealings respectively.Said cylinder cap assembly 5 is fixed on the cylinder barrel 32 with elastic spring 54 and an axle-steel silk back-up ring 56 through a hole.
Above-described only is the preferred implementation of the utility model; Should be understood that; For a person skilled in the art, under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement; These also should be regarded as the protection domain of the utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (3)
1. motor turning actuator cylinder assembly; It is characterized in that; Comprise cylinder barrel assembly, piston assembly, cylinder cap assembly and threaded piston rod; Said cylinder barrel assembly comprises the cylinder barrel of hollow circular cylinder, and an end of cylinder barrel is welded with a threaded connection cover, two oily joints of turnover about being welded with on the cylinder barrel wall; Fixed a piston assembly through self lock nut on the said piston rod, said piston assembly comprises that lead ring and the hole between piston, piston and the inner wall of cylinder use combined seal ring, and the oily joint of left side turnover and the oily joint of right turnover lay respectively at the both sides of piston assembly; Said cylinder cap assembly comprises the axle that is provided with between cylinder cap, cylinder cap and the piston rod with combined seal ring and self-lubricating bearing, and said cylinder cap assembly is fixed on the cylinder barrel with elastic spring and an axle-steel silk back-up ring through a hole.
2. motor turning actuator cylinder assembly according to claim 1 is characterized in that, the oily joint of said left side turnover all is equipped with screw thread with the oily joint of right turnover and stops up.
3. motor turning actuator cylinder assembly according to claim 1 and 2 is characterized in that the external screw-thread of said piston rod and connection cover is equipped with protecting sleeve for thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120485142 CN202320474U (en) | 2011-11-30 | 2011-11-30 | Automobile steering power cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120485142 CN202320474U (en) | 2011-11-30 | 2011-11-30 | Automobile steering power cylinder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202320474U true CN202320474U (en) | 2012-07-11 |
Family
ID=46432465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120485142 Expired - Lifetime CN202320474U (en) | 2011-11-30 | 2011-11-30 | Automobile steering power cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202320474U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244503A (en) * | 2013-05-21 | 2013-08-14 | 成都海凌达机械有限公司 | Dump lifting hydro-cylinder |
| CN105691448A (en) * | 2014-11-26 | 2016-06-22 | 四平市方向机械有限公司 | Truck steering hydraulic force assisting oil cylinder and production process thereof |
| CN111926251A (en) * | 2020-07-23 | 2020-11-13 | 泰州市振亚机械设备有限公司 | Ultrahigh pressure oil cylinder and production process thereof |
| CN112682387A (en) * | 2021-01-14 | 2021-04-20 | 山东浩睿智能科技有限公司 | Automatic turn to hydro-cylinder in return |
-
2011
- 2011-11-30 CN CN 201120485142 patent/CN202320474U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244503A (en) * | 2013-05-21 | 2013-08-14 | 成都海凌达机械有限公司 | Dump lifting hydro-cylinder |
| CN105691448A (en) * | 2014-11-26 | 2016-06-22 | 四平市方向机械有限公司 | Truck steering hydraulic force assisting oil cylinder and production process thereof |
| CN111926251A (en) * | 2020-07-23 | 2020-11-13 | 泰州市振亚机械设备有限公司 | Ultrahigh pressure oil cylinder and production process thereof |
| CN112682387A (en) * | 2021-01-14 | 2021-04-20 | 山东浩睿智能科技有限公司 | Automatic turn to hydro-cylinder in return |
| CN112682387B (en) * | 2021-01-14 | 2023-05-09 | 山东浩睿智能科技有限公司 | Automatic return steering oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |