CN104930020A - Oiling and exhausting structure of hydraulic actuator - Google Patents
Oiling and exhausting structure of hydraulic actuator Download PDFInfo
- Publication number
- CN104930020A CN104930020A CN201510225215.8A CN201510225215A CN104930020A CN 104930020 A CN104930020 A CN 104930020A CN 201510225215 A CN201510225215 A CN 201510225215A CN 104930020 A CN104930020 A CN 104930020A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- oiling
- piston rod
- valve block
- hydraulic actuator
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Abstract
The invention discloses an oiling and exhausting structure of a hydraulic actuator, and fully considers the convenience and the feasibility of oiling and exhausting in structural design. An exhaust port positioned on the upper surface of a valve block is located in a highest point when the hydraulic actuator is horizontally placed, so that air in a closed oil cylinder is totally exhausted. An oil injecting port is formed in the bottom of a cylinder to inject oil for the whole actuator; and a manual hydraulic package is specially arranged for injecting oil for the actuator. The hydraulic actuator is compact in design structure; the hydraulic package is directly connected with the oil cylinder; a connecting pipeline is short; the valve block is compact in design; and the oiling and the exhausting are facilitated. The center of a piston rod of the hydraulic cylinder is drilled for loading a sensor; aiming at the structure, a small hole is designed in one end of the piston rod, and is communicated with a sensor hole; and a screw plug at the end of the piston rod is additionally arranged to prevent residual air in the sensor hole from being incompletely exhausted.
Description
Technical field
The present invention relates to a kind of hydraulic actuator structure, be specifically related to a kind of oiling exhaust structure of hydraulic actuator.
Background technique
Hydraulic system is frequent meeting entrained air in installation process; after installing, the air of internal system may cause creeping of actuator, forms cavitation erosion and damages internal structure, make actuator movement precise decreasing; influential system normally runs, and also can produce very large noise etc.In order to avoid the generation of above problem, to get rid of during action first in new hydraulic system of installing and be present in inner air.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, provide a kind of oiling exhaust structure of hydraulic actuator.
The present invention for addressing this problem taked technological scheme is:
An oiling exhaust structure for hydraulic actuator, comprises oil cylinder, valve block and hydraulic pressure bag, and the upper surface of valve block is provided with a valve block relief opening, relief opening is sealed by relief opening plug screw; Oil cylinder bottom part is provided with a cylinder bottom pouring orifice, and cylinder bottom pouring orifice is sealed by cylinder bottom pouring orifice plug screw; Oil cylinder is provided with rod chamber pipe joint.
One end of piston rod is provided with an elongated hole, and the hole on the sensor installed with piston rod center is communicated with, and arranges tailpiece of the piston rod plug screw at elongated hole place.
This structure also comprises hand-hydraulic bag, is actuator oiling by cylinder bottom pouring orifice.
Advantage of the present invention and good effect are:
Hydraulic actuator of the present invention, takes into full account the convenience and feasibility of refueling and be vented when structural design.The relief opening be positioned on valve block upper surface is at the highest notch when hydraulic actuator horizontal positioned, can ensure emptying air in the oil cylinder closed.Cylinder bottom arranges a pouring orifice to whole actuator oiling, also arranges a hand-hydraulic bag specially, for being actuator oiling.This hydraulic actuator project organization is compact, and hydraulic pressure bag is directly connected with oil cylinder, and connecting tube is short out, valve block compact design, is conducive to refueling and exhaust.Hydraulic cylinder piston rod central punch dress sensor, for this structure, devises an aperture, is communicated with gauge hole, set up tailpiece of the piston rod plug screw in piston rod one end, get rid of unclean to avoid residual air in gauge hole.
Accompanying drawing explanation
Fig. 1 is the plan view of hydraulic actuator of the present invention;
Fig. 2 is the plan view of hydraulic actuator of the present invention.
Critical piece label declaration in figure:
1: oil cylinder 2: hydraulic pressure bag
3: cylinder bottom pouring orifice 4: rod chamber pipe joint
5: tailpiece of the piston rod plug screw 6: valve block relief opening
7: valve block.
Embodiment
Below in conjunction with the drawings and specific embodiments, the oiling exhaust structure in confined space of the present invention is described further.Following each embodiment is not only limitation of the present invention for illustration of the present invention.
Fig. 1 is the plan view of hydraulic actuator of the present invention; Fig. 2 is the plan view of hydraulic actuator of the present invention.As depicted in figs. 1 and 2, the oiling exhaust structure of hydraulic actuator of the present invention, comprises oil cylinder 1, valve block 7 and hydraulic pressure bag 2.The upper surface of valve block 7 is provided with a valve block relief opening 6, valve block relief opening 6 is sealed by relief opening plug screw.Valve block relief opening 6 is at the highest notch when hydraulic actuator horizontal positioned, can ensure emptying air in the oil cylinder closed.
Oil cylinder bottom part is provided with a cylinder bottom pouring orifice 3, to whole actuator oiling.Cylinder bottom pouring orifice 3 is sealed by cylinder bottom pouring orifice plug screw.The rod chamber of oil cylinder 1 is provided with rod chamber pipe joint 4.
One end of piston rod is provided with an elongated hole, and the hole on the sensor installed with piston rod center is communicated with, and arranges tailpiece of the piston rod plug screw 5 at elongated hole place, gets rid of unclean to avoid residual air in gauge hole.
Hydraulic pressure bag 2 is hand-hydraulic bag, is connected on valve block 7, is actuator oiling by cylinder bottom pouring orifice 3.
Hydraulic actuator of the present invention, takes into full account the convenience and feasibility of refueling and be vented when structural design.This hydraulic actuator project organization is compact, and hydraulic pressure bag is directly connected with oil cylinder, and connecting tube is short out, valve block compact design, is conducive to refueling and exhaust.
Working principle of the present invention is: hydraulic oil is full of rodless cavity, is vented from low to high, first arranges rodless cavity gas, then arranges rod chamber gas.The refueling unit gas method of hydraulic actuator is: first keep flat non-loaded for actuator, hydraulic pressure wraps in top, allow the stroke of piston rod get back to zero-bit, the plug screw of the plug screw of cylinder bottom pouring orifice, valve block relief opening, the plug screw that is arranged on the pipe joint of the oil pipe of rod chamber, the earrings of piston rod and tailpiece of the piston rod are turned on.Then utilize hand-hydraulic bag to cylinder bottom pouring orifice pump oil, tighten plug screw immediately when tailpiece of the piston rod is fuel-displaced, piston rod continues to stretch out, when piston rod stroke reach maximum after a period of time, after valve block relief opening is fuel-displaced, tighten plug screw immediately, stop manual pump oil, the plug screw of cylinder bottom pouring orifice is tightened.Then connected with the mains and optical fiber by hydraulic pressure bag, starting electrical machinery, to rod chamber pump oil, when rod chamber oil pipe is fuel-displaced, stops pump oil, the pipe joint of oil pipe and rod chamber hydraulic fluid port is tightened immediately, complete the process of oiling exhaust.
Claims (3)
1. an oiling exhaust structure for hydraulic actuator, comprises oil cylinder (1), valve block (7) and hydraulic pressure bag (2), it is characterized in that: the upper surface of valve block (7) is provided with a valve block relief opening (6), valve block relief opening (6) is sealed by relief opening plug screw; Oil cylinder bottom part is provided with a cylinder bottom pouring orifice (3), and cylinder bottom pouring orifice (3) is sealed by cylinder bottom pouring orifice plug screw; Oil cylinder is provided with rod chamber pipe joint (4).
2. the oiling exhaust structure of hydraulic actuator according to claim 1, is characterized in that: piston rod one end is provided with an elongated hole, and the hole on the sensor installed with piston rod center is communicated with, and arranges tailpiece of the piston rod plug screw (5) at elongated hole place.
3. the oiling exhaust structure of hydraulic actuator according to claim 1, is characterized in that: this structure also comprises a hand-hydraulic bag, is actuator oiling by cylinder bottom pouring orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225215.8A CN104930020A (en) | 2015-05-06 | 2015-05-06 | Oiling and exhausting structure of hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510225215.8A CN104930020A (en) | 2015-05-06 | 2015-05-06 | Oiling and exhausting structure of hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104930020A true CN104930020A (en) | 2015-09-23 |
Family
ID=54117355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510225215.8A Pending CN104930020A (en) | 2015-05-06 | 2015-05-06 | Oiling and exhausting structure of hydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930020A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113619A (en) * | 2005-10-19 | 2007-05-10 | Nippon Sharyo Seizo Kaisha Ltd | Hydraulic unit |
| CN201554714U (en) * | 2009-10-24 | 2010-08-18 | 中船重工中南装备有限责任公司 | Built-in linear displacement sensor hydraulic cylinder |
| CN202545386U (en) * | 2012-04-16 | 2012-11-21 | 上海板机液压设备有限公司 | Multi-inlet oil cylinder |
| CN202834137U (en) * | 2012-10-09 | 2013-03-27 | 上海神开石油化工装备股份有限公司 | Underwater gate valve with hydraulic actuator |
| CN103307059A (en) * | 2013-06-03 | 2013-09-18 | 天津优瑞纳斯液压机械有限公司 | Hydraulic actuator |
| CN104235123A (en) * | 2013-12-18 | 2014-12-24 | 柳州欧维姆机械股份有限公司 | Hydraulic actuator and method for realizing positioning control and position feedback thereof |
-
2015
- 2015-05-06 CN CN201510225215.8A patent/CN104930020A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007113619A (en) * | 2005-10-19 | 2007-05-10 | Nippon Sharyo Seizo Kaisha Ltd | Hydraulic unit |
| CN201554714U (en) * | 2009-10-24 | 2010-08-18 | 中船重工中南装备有限责任公司 | Built-in linear displacement sensor hydraulic cylinder |
| CN202545386U (en) * | 2012-04-16 | 2012-11-21 | 上海板机液压设备有限公司 | Multi-inlet oil cylinder |
| CN202834137U (en) * | 2012-10-09 | 2013-03-27 | 上海神开石油化工装备股份有限公司 | Underwater gate valve with hydraulic actuator |
| CN103307059A (en) * | 2013-06-03 | 2013-09-18 | 天津优瑞纳斯液压机械有限公司 | Hydraulic actuator |
| CN104235123A (en) * | 2013-12-18 | 2014-12-24 | 柳州欧维姆机械股份有限公司 | Hydraulic actuator and method for realizing positioning control and position feedback thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周进民等: "《液压与气动技术》", 31 December 2012, 机械工业出版社 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |
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| RJ01 | Rejection of invention patent application after publication |