CN102192213A - Internal recycle balance pressure oil cylinder - Google Patents
Internal recycle balance pressure oil cylinder Download PDFInfo
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- CN102192213A CN102192213A CN2011101391954A CN201110139195A CN102192213A CN 102192213 A CN102192213 A CN 102192213A CN 2011101391954 A CN2011101391954 A CN 2011101391954A CN 201110139195 A CN201110139195 A CN 201110139195A CN 102192213 A CN102192213 A CN 102192213A
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Abstract
The invention discloses an internal recycle balance pressure oil cylinder which is composed of a dual-effect oil cylinder assembly, two check valves and two overflow valves, wherein the dual-effect oil cylinder assembly comprises an oil cylinder body, a piston and a piston rod; two end heads of the piston rod respectively extend out of end covers at two ends of the oil cylinder body; the piston is positioned at the middle of the piston rod and divides the oil cylinder into two oil chambers; the oil chambers at two sides are respectively connected with one check valve and one overflow valve; the oil inlets of the two overflow valves are respectively communicated with the oil chambers at the two sides; and the oil outlet of the overflow valve at one side is communicated with the oil inlet of the overflow valve at the other side. The oil cylinder is mainly used for releasing the stress generated by expansion and contraction of a rigid connecting body in a precision machine tool, has a damping characteristic of starting under certain pressure, and has the advantages that the motion trace amount and the flexibility are very high, the structure is simple and practical, the cost is low, and the oil cylinder is convenient to modulate and install.
Description
Technical field
The present invention relates to a kind of hydraulic pressure installation, particularly a kind of oil cylinder of inner circulation type balance pressure.
Background technique
In existing machine tool design, oil hydraulic cylinder and related with it hydraulic control system are indispensable.Usually, the a certain oil hydraulic cylinder that is installed on the lathe must be connected with relevant hydraulic control system, oil hydraulic cylinder is an executive component of hydraulic pressure installation, the control system supporting with oil hydraulic cylinder includes fuel tank, oil pump, valve and pipeline etc., the flow velocity of pressure oil, flow and the flow direction all will be controlled by control system, can guarantee the proper functioning of oil hydraulic cylinder, displacement accurately or rotation take place thereby drive the workpiece that is attached thereto.We can say that existing oil hydraulic cylinder all can not work alone, must be controlled by control system, and this hydraulic pressure installation is not suitable all occasions, for example the thermal distortion stress relief occasion of rigid member.
Summary of the invention
The object of the present invention is to provide a kind of interior cyclic balance oil pressure cylinder, it has under certain pressure opens automatically, reach pressure balance by the fluid internal circulation system in the cylinder body, and have the two-way function function, can solve the stress relief problem that rigid connector produces because of expanding with heat and contract with cold in the precision machine tool.
The technological scheme that realizes above-mentioned purpose is: cyclic balance oil pressure cylinder in a kind of, it is by a two-way cylinder assembly, two one-way valves, two relief valves are formed, described two-way cylinder assembly comprises a cylinder body, a piston and a piston rod, the piston rod two ends is stretched out the end cap at cylinder body two ends respectively, piston is positioned at the neutral position of piston rod and oil cylinder is divided into two oil pockets, the oil pocket on both sides respectively is connected with an one-way valve and a relief valve, the filler opening of two relief valves is communicated with the oil pocket on both sides respectively, on one side the oil outlet of relief valve be communicated with the filler opening of another side relief valve.
As the improvement of above-mentioned technology, the oil pocket on described both sides respectively is connected with a cover oil pocket pressure trimming assembly, is used for getting rid of air and the micro-pressure of adjusting in the oil pocket in the oil pocket.
This device is mainly used in and discharges the stress that the body that is rigidly connected in the precision machine tool produces because of expanding with heat and contract with cold.Cylinder body is fixed on the static relatively pedestal, and an end of piston rod discharges the position with the body stress that is rigidly connected and is connected, and the other end is a free end.Before the work, by two one-way valves two oil pockets are filled with pressure oil earlier, carry out exhaust and trace adjustment by the pressure trimming assembly again, make the pressure balance in the oil pocket of both sides, piston generally is in the central authorities of oil cylinder stroke.During work, when being thrust as if the stress that is connected the body that is rigidly connected of piston rod right-hand member, this thrust is passed to the left chamber of oil cylinder by piston rod, when the pressure of left oil pocket reached setting value, the relief valve on it will be opened, and the intercommunication oil pipe about fluid passes through between two relief valves flows into the right chamber of oil cylinder, at this moment, the pressure of right cavity of cylinder rises and also reaches the right and left pressure balance, like this, causes that because of expanding with heat and contract with cold the be rigidly connected stress deformation thrust of body of lathe just is released; In like manner, when the stress of piston rod acceptance is pulling force, pulling force is passed to right cavity of cylinder by piston rod, when power reaches certain value, the relief valve that is connected with right cavity of cylinder is opened, and piston rod moves to right, and fluid flows into chamber, an oil cylinder left side, the pressure in chamber, an oil cylinder left side rise and make about two oil pockets reach pressure balance, pulling force promptly is released.
About the balance pressure value of two oil pockets determine that by relief valve the cracking pressure of relief valve has determined the external force that cylinder system can bear.This device has the damping characteristic of opening under certain pressure, its motion trace and sensitivity are very high, and it is applied to the stress deformation occasion of the various bodies that are rigidly connected, and it is simple in structure, practical, and is with low cost, debugs easy for installation.
Description of drawings
Fig. 1 is a schematic diagram of structure of the present invention.
Fig. 2 is the plan view of one embodiment of the present of invention.
Fig. 3 is a left view embodiment illustrated in fig. 2.
Fig. 4 is the B-B sectional view of Fig. 3.
Fig. 5 is the A-A sectional view of Fig. 2.
Among the figure: 1,8. one-way valve, 2. piston, 21. piston rods, 3. cylinder body, 31. right cavitys, 32. left cavitys, 4,7. pressure trimming assembly, 5,6. relief valve.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Extremely shown in Figure 5 as Fig. 1, cyclic balance oil pressure cylinder device is by a two-way cylinder assembly in the present invention, two one- way valves 1 and 8, two relief valves 5 and 6 are formed, the two-way cylinder assembly comprises a cylinder body 3, a piston 2 and a piston rod 21, piston rod 21 two ends are stretched out the end cap at cylinder body 3 two ends respectively, piston 2 be positioned at the neutral position of piston rod 21 and cylinder body 3 is divided into about two oil pockets 31 and 32, left side oil pocket 32 is connected with an one-way valve 8 and a relief valve 6, right oil pocket 31 is connected with an one-way valve 1 and a relief valve 5, the filler opening of relief valve 5 is communicated with oil pocket 31, the filler opening of relief valve 6 is communicated with oil pocket 32, the filler opening of the oil outlet of relief valve 6 and relief valve 5 is communicated with, and the filler opening of the oil outlet of relief valve 5 and relief valve 6 is communicated with.In the present embodiment, the oil pocket 31 and 32 on both sides respectively is connected with a cover oil pocket pressure trimming assembly 4 and 7, and trimming assembly 4 and 7 is used for getting rid of air and the micro-pressure of adjusting in the oil pocket in the oil pocket.
Claims (2)
1. cyclic balance oil pressure cylinder device in a kind, it is characterized in that: it is by a two-way cylinder assembly, two one-way valves, two relief valves are formed, described two-way cylinder assembly comprises a cylinder body, a piston and a piston rod, the piston rod two ends is stretched out the end cap at cylinder body two ends respectively, piston is positioned at the neutral position of piston rod and oil cylinder is divided into two oil pockets, the oil pocket on both sides respectively is connected with an one-way valve and a relief valve, the filler opening of two relief valves is communicated with the oil pocket on both sides respectively, on one side the oil outlet of relief valve be communicated with the filler opening of another side relief valve.
2. according to the described cylinder apparatus of claim 1, it is characterized in that: the oil pocket on described both sides respectively is connected with a cover oil pocket pressure trimming assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139195.4A CN102192213B (en) | 2011-05-21 | 2011-05-21 | Internal recycle balance pressure oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139195.4A CN102192213B (en) | 2011-05-21 | 2011-05-21 | Internal recycle balance pressure oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192213A true CN102192213A (en) | 2011-09-21 |
| CN102192213B CN102192213B (en) | 2014-04-16 |
Family
ID=44600896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110139195.4A Expired - Fee Related CN102192213B (en) | 2011-05-21 | 2011-05-21 | Internal recycle balance pressure oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192213B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404316A (en) * | 2015-12-21 | 2016-03-16 | 四川大学 | Array type position attitude fine tuning method |
| CN106870468A (en) * | 2017-03-20 | 2017-06-20 | 姜永达 | Hydraulic pressure positive/negative-pressure interpreter |
| CN108663150A (en) * | 2018-05-10 | 2018-10-16 | 温州大学 | A kind of novel cold-heading power force measuring method and the device for measuring force with this method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221514B (en) * | 2015-09-29 | 2017-03-29 | 中国船舶重工集团公司第七一九研究所 | A kind of integrated hydraulic cylinder with bidirection press safeguard protection |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3233739A1 (en) * | 1981-10-01 | 1983-04-21 | Hoerbiger Ventilwerke AG, 1110 Wien | Device for automatically returning an actuating cylinder |
| DE29609698U1 (en) * | 1996-05-31 | 1996-09-26 | Oil-Control GmbH, 86343 Königsbrunn | Hydraulic rapid shift for hydraulically operated telescopic crane booms |
| CN2709691Y (en) * | 2004-06-29 | 2005-07-13 | 北汽福田汽车股份有限公司 | Autoprotection large speed ratio hydraulic cylinder |
| US20060207247A1 (en) * | 2005-03-18 | 2006-09-21 | Smc Kabushiki Kaisha | Actuator |
| CN101050780A (en) * | 2006-04-05 | 2007-10-10 | 吴应琼 | Hydraulic oil cylinder and its using method |
| CN101059694A (en) * | 2007-06-05 | 2007-10-24 | 西北工业大学 | Friction welding machine closed loop control device |
| CN201653713U (en) * | 2010-03-28 | 2010-11-24 | 荆州恒盛汽车系统有限公司 | Hydraulic device for power steering gear abrasion test |
| CN201827172U (en) * | 2010-07-30 | 2011-05-11 | 伊卡露斯(苏州)车辆系统有限公司 | Supercharging latching hydraulic buffer system |
| CN202091286U (en) * | 2011-05-21 | 2011-12-28 | 汉川机床集团有限公司 | Internal-circulation balanced pressure oil cylinder |
-
2011
- 2011-05-21 CN CN201110139195.4A patent/CN102192213B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3233739A1 (en) * | 1981-10-01 | 1983-04-21 | Hoerbiger Ventilwerke AG, 1110 Wien | Device for automatically returning an actuating cylinder |
| DE29609698U1 (en) * | 1996-05-31 | 1996-09-26 | Oil-Control GmbH, 86343 Königsbrunn | Hydraulic rapid shift for hydraulically operated telescopic crane booms |
| CN2709691Y (en) * | 2004-06-29 | 2005-07-13 | 北汽福田汽车股份有限公司 | Autoprotection large speed ratio hydraulic cylinder |
| US20060207247A1 (en) * | 2005-03-18 | 2006-09-21 | Smc Kabushiki Kaisha | Actuator |
| CN101050780A (en) * | 2006-04-05 | 2007-10-10 | 吴应琼 | Hydraulic oil cylinder and its using method |
| CN101059694A (en) * | 2007-06-05 | 2007-10-24 | 西北工业大学 | Friction welding machine closed loop control device |
| CN201653713U (en) * | 2010-03-28 | 2010-11-24 | 荆州恒盛汽车系统有限公司 | Hydraulic device for power steering gear abrasion test |
| CN201827172U (en) * | 2010-07-30 | 2011-05-11 | 伊卡露斯(苏州)车辆系统有限公司 | Supercharging latching hydraulic buffer system |
| CN202091286U (en) * | 2011-05-21 | 2011-12-28 | 汉川机床集团有限公司 | Internal-circulation balanced pressure oil cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404316A (en) * | 2015-12-21 | 2016-03-16 | 四川大学 | Array type position attitude fine tuning method |
| CN106870468A (en) * | 2017-03-20 | 2017-06-20 | 姜永达 | Hydraulic pressure positive/negative-pressure interpreter |
| CN108663150A (en) * | 2018-05-10 | 2018-10-16 | 温州大学 | A kind of novel cold-heading power force measuring method and the device for measuring force with this method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102192213B (en) | 2014-04-16 |
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