CN201166019Y - Double-action plunger type reciprocating movement hydraulic device - Google Patents
Double-action plunger type reciprocating movement hydraulic device Download PDFInfo
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- CN201166019Y CN201166019Y CNU200820028567XU CN200820028567U CN201166019Y CN 201166019 Y CN201166019 Y CN 201166019Y CN U200820028567X U CNU200820028567X U CN U200820028567XU CN 200820028567 U CN200820028567 U CN 200820028567U CN 201166019 Y CN201166019 Y CN 201166019Y
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- plunger
- cylinder barrel
- double
- reciprocating movement
- type reciprocating
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Abstract
The utility model relates to a hydraulic power device, in particular to a dual-functional plunger type reciprocating hydraulic device for driving mechanical components to perform reciprocating movement, which at least comprises a cylinder barrel, a plunger and a sealing element (12) of the plunger. The hydraulic power device is characterized in that the cylinder barrel includes an upper cylinder barrel and a lower cylinder barrel, the plunger which is sealed by the plunger sealing element (12) is disposed inside the upper and lower cylinder barrel, a double-vane-shaped plate (6) extends out two sides of the plunger and is connected with external mechanical components via a frame (3) and a connecting plate (1), an upper and lower closed oil cavities are formed by the upper and lower cylinder barrels and the upper and lower surfaces of the plunger, hydraulic oil inlet and outlet holes are arranged on the upper and lower closed oil cavities. The hydraulic power device is excellent in reliability, long in service life and high in sensibility.
Description
Technical field
The utility model relates to a kind of hydraulic power unit, the double-action plunger type reciprocating movement hydraulic pressure installation that particularly a kind of driving device member moves back and forth.
Background technique
Hydraulic cylinder device consists of the following components usually: be contained in the piston of cylinder barrel inside, stretch out the piston rod of cylinder body outside, front and back cylinder cap, Sealing.Sealing has motive sealing and static seal.Static seal prevent liquid from cylinder cap to external leakage, the piston motive sealing prevents the leakage between two oil pockets of oil hydraulic cylinder, the piston rod motive sealing prevent liquid from piston rod to external leakage.Pistons reciprocating bar and Sealing produce the sassafras wearing and tearing that rub, and this sassafras wearing and tearing that rub are along with pressure surge and service time prolong and aggravates.Cause seal failure, the piston rod wearing and tearing, to external leakage, oil hydraulic cylinder can not continue to use liquid from piston rod.The static seal at cylinder cap place also can damage because of sealing part excesssive gap Sealing is extruded groove under change impacts pressure, and long-term use also can cause liquid to external leakage because of the Sealing aged deterioration damages.
Summary of the invention
The purpose of this utility model provides a kind of good reliability, long service life, highly sensitive double-action plunger type reciprocating movement hydraulic pressure installation.
For achieving the above object, the technical solution of the utility model is: the double-action plunger type reciprocating movement hydraulic pressure installation, which comprises at least cylinder barrel, plunger and plunger seal, it is characterized in that: cylinder barrel is cylinder barrel up and down, plunger by the plunger seal sealing is arranged in cylinder barrel inside up and down, two wing-shaped plates are stretched out in the plunger both sides, and the double-vane shape plate framework that stretch out both sides is connected with the exterior mechanical parts with connecting plate; Cylinder barrel and plunger top and bottom form oil closed cavity up and down up and down, and oil closed cavity has the hydraulic oil manhole appendix up and down.
Described plunger both sides are stretched out two wing-shaped plates and are connected by framework with the exterior mechanical parts.
Two wing-shaped plates and plunger that described plunger stretches out are as a whole.
Described plunger is connected as a whole with two wing-shaped plates by link.
Described Sealing comprises two cover primary seals, secondary sealing and dust sealing, and two cover sealings are set in two ends.
Connect a control valve piece on the described cylinder barrel, the servo control element electrohydraulic control is arranged on the valve piece, epicoele turnover oilhole A, the cavity of resorption turnover oilhole B of oil hydraulic cylinder and the output oil hole epicoele turnover oilhole A of electrohydraulic control, cavity of resorption turnover oilhole B directly are communicated with by the control valve piece, form the oil hydraulic circuit of Hydrauservo System proper functioning.
Described framework has two arms to be connected on two wing-shaped plates with screw.
Two arms of described connecting plate and framework are connected by screw.
Connect two cover guide bearings on the arm of described framework.
Described oil hydraulic cylinder external stability has displacement transducer, and it is parallel with plunger to be contained on another arm of framework.
The utility model has the advantages that: as piston, used the plunger motive sealing identical with the piston motive sealing with two plungers.Cancel piston rod and cylinder cap, do not had piston rod motive sealing cylinder cap static seal, avoided the sassafras wearing and tearing that rub of piston rod and piston rod motive sealing, avoided the inefficacy of cylinder cap static seal.Effectively prevent the leakage of hydraulic cylinder piston rod and cylinder cap place liquid, the reliability and the sensitivity that have improved oil hydraulic cylinder have prolonged oil hydraulic cylinder working life.
Description of drawings
Below in conjunction with embodiment's accompanying drawing the utility model is described further.
Fig. 1 is the utility model example structure plan view schematic representation;
Fig. 2 is the plan view of Fig. 1.
Among the figure: 1, connecting plate; 2, cylinder barrel fastening flange; 3, framework; 4, guide bearing; 5, go up cylinder barrel; 6, two wing-shaped plates; 7, following cylinder barrel; 8, breathing pipe; 9, displacement transducer; 10, protective housing; 11, lower plunger; 12, plunger seal; 13, plunger guide ring; 14, upper plug; A, epicoele turnover oilhole; B, cavity of resorption turnover oilhole; CA, pore; M, control valve plate connect screw.
Embodiment
As shown in Figure 1 and Figure 2, the double-action plunger type reciprocating movement hydraulic pressure installation, which comprises at least cylinder barrel, plunger and plunger seal 12, cylinder barrel is a cylinder barrel up and down, plunger by plunger seal 12 sealings is arranged in cylinder barrel inside up and down, two wing-shaped plates 6 are stretched out in the plunger both sides, and two wing-shaped plates 6 that stretch out both sides are connected by framework 3 with the exterior mechanical parts; Cylinder barrel and plunger top and bottom form oil closed cavity up and down up and down, and oil closed cavity has the hydraulic oil manhole appendix up and down.Hydraulic oil can be liquid medium.
Cylinder barrel fastening flange 2 is fixed on the basis, and is connected with last cylinder barrel 5 usefulness screws, and last cylinder barrel 5 usefulness screws are connecting to descend cylinder barrel 7.Plunger is in last cylinder barrel 5 and following cylinder barrel 7, and plunger can be connected and composed by upper plug 14 and lower plunger 11, and the plunger that is connected with wing plate is moving reciprocatingly in the cylinder barrel up and down.Upper plug 14, lower plunger 11 and double-vane plate 6 can be made an integral body or individual components connects as one.
Two wing-shaped plate 6 usefulness screws are connected with screw with two arms of framework 3, and 3 two arms of framework are connected with connecting plate 1 usefulness screw and follow plunger and move together.Do by driven mechanical component that is threaded at connecting plate 1 middle part and to pump.
When plunger piston fluid pressure cylinder moves reciprocatingly, in order to prevent that plunger (upper plug 14, lower plunger 11) from rotating, two cover guide bearings 4 (rolling bearing) are installed on an arm of framework 3, and frictional force was very little when bearing rolled on the Q plane of last cylinder barrel 5, had limited the degrees of freedom that plunger rotates.
The utility model is used as servo-controlled oil hydraulic cylinder.Displacement transducer 9 can with the coaxial cylinder barrel bottom (as accompanying drawing) that is contained in of plunger.Breathing pipe 8 is used to transmit air protection displacement transducer 9.Protective housing 10 prevents displacement transducer 9 mechanical deteriorations.
When using as servo hydraulic cylinder, connect screw M by four control valve plates on the P plane control valve piece is installed, the servo control element electrohydraulic control is arranged on the valve piece, two cavity oil hole epicoele turnover oilhole A, the cavity of resorption turnover oilhole B of oil hydraulic cylinder and output oil hole epicoele turnover oilhole A, the cavity of resorption turnover oilhole B of electrohydraulic control directly are communicated with by the control valve piece, form the oil hydraulic circuit of Hydrauservo System proper functioning.Pore CA feeds compressed gas the position that last lower plunger exposes cylinder barrel is purged, and prevents that dust and dirt from entering lower plunger and cylinder barrel.
Oil hydraulic cylinder shown in the accompanying drawing is for being used as servo-controlled oil hydraulic cylinder.Cylinder barrel is fixed, the plunger frame movement.Two plungers are isometrical.Cylinder barrel head flanges formula is vertically installed.Displacement transducer can with the coaxial cylinder barrel bottom of being contained in down of plunger.
When oil hydraulic cylinder moves reciprocatingly, rotate in order to prevent plunger, two cover guide bearings 4 (rolling bearing) are installed on an arm of framework 3, frictional force was very little when bearing rolled on the Q plane of last cylinder barrel 5, had limited the degrees of freedom that plunger rotates.
Oil hydraulic cylinder shown in the accompanying drawing is for being used as servo-controlled oil hydraulic cylinder.Cylinder barrel is fixed, the plunger frame movement.Two plungers are isometrical.Cylinder barrel head flanges formula is vertically installed.Displacement transducer 9 can with the coaxial cylinder barrel bottom of being contained in of plunger.
Dynamic performance (sensitivity of response and rapidity) formula according to the reflection oil hydraulic cylinder:
In the formula
β
eThe comprehensive elastic feel quantity of liquid, Sealing, cylinder barrel material in the-oil closed cavity.
The effective active area of A-plunger.
The quality of M-plunger (piston) and connected element.
The effective volume of liquid in the V-oil closed cavity.
ω
h-power system natural frequency.
Same function area A and stroke S, the volume V of liquid in the oil closed cavity that the plunger of the utility model oil hydraulic cylinder and cylinder barrel form is less than the volume V of the oil hydraulic cylinder oil closed cavity liquid with piston rod and cylinder cap.Because the utility model oil hydraulic cylinder has only a sealing (plunger primary seal) to contact with liquid, and the oil hydraulic cylinder with piston rod and cylinder cap has 3 sealings (piston primary seal, piston rod primary seal and cylinder cap static seal) to contact with liquid.The distortion of Sealing can reduce comprehensive elastic feel quantity β
eComprehensive elastic feel quantity β in the utility model oil hydraulic cylinder oil closed cavity
eBe greater than the comprehensive elastic feel quantity β of oil hydraulic cylinder oil closed cavity liquid with piston rod and cylinder cap
eThese two factors all make the ω of the dynamic performance (sensitivity of response and rapidity) of reflection oil hydraulic cylinder
hIncrease.Therefore, the dynamic performance of the utility model oil hydraulic cylinder (sensitivity of response and the rapidity) oil hydraulic cylinder that relatively has piston rod and a cylinder cap increases.
The utility model oil hydraulic cylinder has works fine performance and permanent working life, can be used as common reciprocating oil hydraulic cylinder, also can be used as servo-controlled oil hydraulic cylinder.Can work steady in a long-term in the higher environment that dust and steam arranged of temperature.
According to this oil hydraulic cylinder of the moving direction that is driven mechanical part can vertically install, level is installed or tilt to install and use.
Can fix by cylinder barrel the plunger frame movement according to motion mode; Also can the plunger frame fixation, the cylinder barrel motion.
Change outer portion connecting structure and can realize various Placements: cylinder barrel bottom-hinged formula; Cylinder barrel flange in the bottom formula; Cylinder barrel head flanges formula; Cylinder barrel middle part gudgeon formula; The cylinder barrel base type.According to the load request that is driven mechanical part, two plungers can be isometrical, also can be reducings.
Claims (10)
1, double-action plunger type reciprocating movement hydraulic pressure installation, which comprises at least cylinder barrel, plunger and plunger seal (12), it is characterized in that: cylinder barrel is cylinder barrel up and down, plunger by plunger seal (12) sealing is arranged in cylinder barrel inside up and down, two wing-shaped plates (6) are stretched out in the plunger both sides, and two wing-shaped plates (6) that stretch out both sides are connected with the exterior mechanical parts with connecting plate (1) by framework (3); Cylinder barrel and plunger top and bottom form oil closed cavity up and down up and down, and oil closed cavity has the hydraulic oil manhole appendix up and down.
2, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: described plunger both sides are stretched out two wing-shaped plates (6) and are connected by framework (3) with the exterior mechanical parts.
3, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: two wing-shaped plates (6) and plunger that described plunger stretches out are as a whole.
4, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: described plunger is connected as a whole with two wing-shaped plates (6) by link.
5, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: described plunger seal (12) comprises two cover primary seals, secondary sealing and dust sealing, and two cover sealings are set in two ends.
6, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1, it is characterized in that: a control valve piece is installed on the described cylinder barrel, the servo control element electrohydraulic control is arranged on the valve piece, output oil hole epicoele turnover oilhole (A), the cavity of resorption turnover oilhole (B) of epicoele turnover oilhole (A), cavity of resorption turnover oilhole (B) and the electrohydraulic control of oil hydraulic cylinder directly are communicated with by the control valve piece, form the oil hydraulic circuit of Hydrauservo System proper functioning.
7, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: described framework (3) has two arms to be connected on two wing-shaped plates (6) with screw.
8, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: two arms of described framework (3) and connecting plate (1) are connected by screw.
9, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: two cover guide bearings (4) are installed on the arm of described framework (3).
10, double-action plunger type reciprocating movement hydraulic pressure installation according to claim 1 is characterized in that: described oil hydraulic cylinder external stability has displacement transducer (9), and it is parallel with plunger to be contained on another arm of framework (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820028567XU CN201166019Y (en) | 2008-03-14 | 2008-03-14 | Double-action plunger type reciprocating movement hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820028567XU CN201166019Y (en) | 2008-03-14 | 2008-03-14 | Double-action plunger type reciprocating movement hydraulic device |
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| Publication Number | Publication Date |
|---|---|
| CN201166019Y true CN201166019Y (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820028567XU Expired - Fee Related CN201166019Y (en) | 2008-03-14 | 2008-03-14 | Double-action plunger type reciprocating movement hydraulic device |
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| CN (1) | CN201166019Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257759A (en) * | 2015-10-31 | 2016-01-20 | 重庆市安太弹簧有限责任公司 | Gas spring device with self-cleaning function |
-
2008
- 2008-03-14 CN CNU200820028567XU patent/CN201166019Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257759A (en) * | 2015-10-31 | 2016-01-20 | 重庆市安太弹簧有限责任公司 | Gas spring device with self-cleaning function |
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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: XI'AN WINDPOWER EQUIPMENT CO.,LTD. OF CHINA WATER INVESTMENT Group Assignor: China National Heavy Machinery Research Institute Co.,Ltd. Contract fulfillment period: 2009.8.1 to 2014.8.1 Contract record no.: 2009610000170 Denomination of utility model: Double-action plunger type reciprocating movement hydraulic device Granted publication date: 20081217 License type: Exclusive license Record date: 20091216 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.1 TO 2014.8.1; CHANGE OF CONTRACT Name of requester: XI AN WIND POWER CO., LTD.OF CHINA WATER INVESTMEN Effective date: 20091216 |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Free format text: FORMER NAME: CHINA HEAVY MACHINERY INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee after: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee before: China National Heavy Machinery Research Institute Co.,Ltd. Address after: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee after: China National Heavy Machinery Research Institute Co.,Ltd. Address before: 710032 Shaanxi city in Xi'an province Xin Jiamiao Xi'an Heavy Machinery Research Institute Patentee before: China National Heavy Machinery Research Institute Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20150314 |
|
| EXPY | Termination of patent right or utility model |