CN105221520A - Order oil cylinder - Google Patents
Order oil cylinder Download PDFInfo
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- CN105221520A CN105221520A CN201510730236.5A CN201510730236A CN105221520A CN 105221520 A CN105221520 A CN 105221520A CN 201510730236 A CN201510730236 A CN 201510730236A CN 105221520 A CN105221520 A CN 105221520A
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- piston rod
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Abstract
The present invention discloses a kind of oil cylinder can realize sequentially-operating by designing requirement order oil cylinder when connecting and using, the technological scheme adopted is: order oil cylinder, front end housing is arranged on one end of cylinder body, one end of multilayer piston rod is provided with piston, the other end of multilayer piston rod is provided with connecting head, core bar is hollow shape, core bar is arranged in multilayer piston rod, the arranged outside of cylinder body has the hydraulic fluid port A and hydraulic fluid port B that pass in and out for hydraulic oil, connecting head is provided with the hydraulic fluid port A1 for connecting next stage oil cylinder oil inlet and outlet and hydraulic fluid port B1, one end of core bar is communicated with hydraulic fluid port A, the other end of core bar is provided with oil outlet, when multilayer piston rod does not stretch out, oil outlet on core bar is closed, when multilayer piston rod stretches out, oil outlet on core bar is communicated with the A1 mouth on connecting head, hydraulic fluid port B is communicated with the hydraulic fluid port B1 on connecting head, the present invention can be widely used in hydraulic jack field.
Description
Technical field
The present invention's order oil cylinder, belongs to technical field of hydraulic oil cylinder.
Background technique
Common engineering oil cylinder connect use time, due to the impact by frictional force or load, each oil cylinder stretch out and contraction be do not have sequential, i.e. the frictional force that is subject to of which oil cylinder or the little just first startup optimization of load.Order oil cylinder can realize sequentially-operating by designing requirement, is not subject to the impact of frictional force and load.Such as: the expanding-contracting action of the telescopic boom on lorry-mounted crane, common engineering oil cylinder cannot meet the requirement of sequentially-operating; And order oil cylinder does not make telescopic boom by designing requirement sequential telescopic by the impact of frictional force and load.
Summary of the invention
Instant invention overcomes the deficiency that prior art exists, provide a kind of oil cylinder can realize sequentially-operating by designing requirement order oil cylinder when connecting and using.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: order oil cylinder, comprises cylinder body, multilayer piston rod, piston, front end housing and core bar, described front end housing is arranged on one end of cylinder body, the inner chamber being formed and close is coordinated with cylinder body, described multilayer piston rod and piston are all arranged in the inner chamber of cylinder body, one end of described multilayer piston rod is provided with piston, the other end of described multilayer piston rod is provided with connecting head, the inner chamber of cylinder body is separated into rod chamber and rodless cavity by described piston, described core bar is hollow shape, described core bar is arranged in multilayer piston rod, the arranged outside of described cylinder body has the hydraulic fluid port A and hydraulic fluid port B that pass in and out for hydraulic oil, described connecting head is provided with the hydraulic fluid port A1 for connecting next stage oil cylinder oil inlet and outlet and hydraulic fluid port B1, one end of described core bar is communicated with hydraulic fluid port A, the other end of described core bar is provided with oil outlet, when described multilayer piston rod does not stretch out, oil outlet on described core bar is closed, when described multilayer piston rod stretches out, oil outlet on described core bar is communicated with the A1 mouth on connecting head, described hydraulic fluid port B is communicated with the hydraulic fluid port B1 on connecting head.
Described connecting head is provided with stroke valve, and the rodless cavity of secondary oil cylinder is communicated with core bar by described stroke valve, carries out oil return, for the withdrawal of oil cylinder.
Described cylinder body is provided with one-way valve, and described one-way valve is for regulating the oil pressure of hydraulic fluid port A.
The beneficial effect that the present invention compared with prior art has is: the present invention adopts special piston rod, makes oil cylinder in series operation, realize the sequentially-operating of mechanism.The present invention can realize (oil cylinder cylinder diameter >=80mm) in less oil cylinder in addition.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further.
Fig. 1 is structural representation of the present invention.
Fig. 2 is working oil path schematic diagram of the present invention.
In figure: 1 be cylinder body, 2 be multilayer piston rod, 3 be piston, 4 be front end housing, 5 be one-way valve, 6 be core bar, 7 be stroke valve, 8 for connecting head.
Embodiment
As shown in Figure 1 and Figure 2, the present invention's order oil cylinder, comprises cylinder body 1, multilayer piston rod 2, piston 3, front end housing 4 and core bar 6, described front end housing 4 is arranged on one end of cylinder body 1, the inner chamber being formed and close is coordinated with cylinder body 1, described multilayer piston rod 2 and piston 3 are all arranged in the inner chamber of cylinder body 1, one end of described multilayer piston rod 2 is provided with piston 3, the other end of described multilayer piston rod 2 is provided with connecting head 8, the inner chamber of cylinder body 1 is separated into rod chamber and rodless cavity by described piston 3, described core bar 6 is in hollow shape, described core bar 6 is arranged in multilayer piston rod 2, the arranged outside of described cylinder body 1 has the hydraulic fluid port A and hydraulic fluid port B that pass in and out for hydraulic oil, described connecting head 8 is provided with the hydraulic fluid port A1 for connecting next stage oil cylinder oil inlet and outlet and hydraulic fluid port B1, one end of described core bar 6 is communicated with hydraulic fluid port A, the other end of described core bar 6 is provided with oil outlet, when described multilayer piston rod 2 does not stretch out, oil outlet on described core bar 6 is closed, when described multilayer piston rod 2 stretches out, oil outlet on described core bar 6 is communicated with the A1 mouth on connecting head 8, described hydraulic fluid port B is communicated with the hydraulic fluid port B1 on connecting head 8.
Described connecting head 8 is provided with stroke valve 7, and the rodless cavity of secondary oil cylinder is communicated with core bar 6 by described stroke valve 7, carries out oil return, for the withdrawal of oil cylinder.
Described cylinder body 1 is provided with one-way valve 5, and described one-way valve 5 is for regulating the oil pressure of hydraulic fluid port A.
Working procedure of the present invention: hydraulic fluid port A oil-feed, hydraulic fluid port B oil return when the multilayer piston rod 2 of oil cylinder stretches out in the present invention, all stretches out the multilayer piston rod 2 of oil cylinder; At this moment hydraulic fluid port A is by the oil outlet on core bar 6 and hydraulic fluid port A1 UNICOM, and be connected with the hydraulic fluid port A of next stage oil cylinder by hydraulic fluid port A1, next stage oil cylinder carries out extend action; Hydraulic fluid port B oil-feed when the multilayer piston rod 2 of oil cylinder reclaims, flows into the rod chamber of final stage oil cylinder by hydraulic fluid port B1; At this moment the hydraulic oil of rodless cavity passes through core bar 6 oil return of each oil cylinder; When the multilayer piston rod 2 of final stage oil cylinder is all regained, by the stroke valve 7 of the secondary oil cylinder of mechanism opening, the hydraulic oil of secondary oil cylinder rodless cavity is by core bar 6 oil return; Each oil cylinder according to this order reclaims.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (3)
1. order oil cylinder, is characterized in that: comprise cylinder body (1), multilayer piston rod (2), piston (3), front end housing (4) and core bar (6), described front end housing (4) is arranged on one end of cylinder body (1), the inner chamber being formed and close is coordinated with cylinder body (1), described multilayer piston rod (2) and piston (3) are all arranged in the inner chamber of cylinder body (1), one end of described multilayer piston rod (2) is provided with piston (3), the other end of described multilayer piston rod (2) is provided with connecting head (8), the inner chamber of cylinder body (1) is separated into rod chamber and rodless cavity by described piston (3), described core bar (6) is in hollow shape, described core bar (6) is arranged in multilayer piston rod (2), the arranged outside of described cylinder body (1) has the hydraulic fluid port A and hydraulic fluid port B that pass in and out for hydraulic oil, described connecting head (8) is provided with the hydraulic fluid port A1 for connecting next stage oil cylinder oil inlet and outlet and hydraulic fluid port B1, one end of described core bar (6) is communicated with hydraulic fluid port A, the other end of described core bar (6) is provided with oil outlet, when described multilayer piston rod (2) is not stretched out, oil outlet on described core bar (6) is closed, when described multilayer piston rod (2) is stretched out, oil outlet on described core bar (6) is communicated with the A1 mouth on connecting head (8), described hydraulic fluid port B is communicated with the hydraulic fluid port B1 on connecting head (8).
2. order oil cylinder according to claim 1, is characterized in that: described connecting head (8) is provided with stroke valve (7), and the rodless cavity of secondary oil cylinder is communicated with core bar (6) by described stroke valve (7), carries out oil return, for the withdrawal of oil cylinder.
3. order oil cylinder according to claim 1 and 2, is characterized in that: described cylinder body (1) is provided with one-way valve (5), and described one-way valve (5) is for regulating the oil pressure of hydraulic fluid port A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730236.5A CN105221520A (en) | 2015-11-02 | 2015-11-02 | Order oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510730236.5A CN105221520A (en) | 2015-11-02 | 2015-11-02 | Order oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221520A true CN105221520A (en) | 2016-01-06 |
Family
ID=54990697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510730236.5A Pending CN105221520A (en) | 2015-11-02 | 2015-11-02 | Order oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221520A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023534A (en) * | 2017-05-24 | 2017-08-08 | 合肥长源液压股份有限公司 | A kind of order hydraulic cylinder group |
| CN108006010A (en) * | 2017-11-30 | 2018-05-08 | 徐州徐工液压件有限公司 | The sequential telescopic hydraulic cylinder of mechanical control stroke |
| CN108331797A (en) * | 2018-03-28 | 2018-07-27 | 徐工集团工程机械有限公司 | A kind of sand throwing extinguishing vehicle feeding equipment oil cylinder |
| CN108716495A (en) * | 2018-07-10 | 2018-10-30 | 蚌埠市行星工程机械有限公司 | The built-in oil duct hydraulic cylinder group series connection asynchronous propulsion system of fitted outside |
| CN109973463A (en) * | 2019-04-22 | 2019-07-05 | 韶关市起重机厂有限责任公司 | A kind of oil cylinder, Multi-cylinder sequential telescopic mechanism and engineering machinery that energy reliable sequence is flexible |
| CN111980981A (en) * | 2020-08-27 | 2020-11-24 | 烟台未来自动装备有限责任公司 | Control method for sequential extension of multiple oil cylinders |
| CN113236618A (en) * | 2021-05-11 | 2021-08-10 | 燕山大学 | Multi-cylinder sequential telescopic hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387972B1 (en) * | 2001-05-17 | 2009-03-04 | Hydrauto Ab | Sequence controlled hydraulic cylinders |
| CN201747694U (en) * | 2010-07-15 | 2011-02-16 | 徐州重型机械有限公司 | Single-cylinder pin oil cylinder and telescopic arm and crane with same |
| CN102134044A (en) * | 2010-12-20 | 2011-07-27 | 长治清华机械厂 | Suspension arm sequential stretching/retracting hydraulic system |
| CN102619805A (en) * | 2012-04-27 | 2012-08-01 | 郑州宇通重工有限公司 | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially |
| CN205207322U (en) * | 2015-11-02 | 2016-05-04 | 长治清华机械厂 | Sequential oil cylinder |
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2015
- 2015-11-02 CN CN201510730236.5A patent/CN105221520A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387972B1 (en) * | 2001-05-17 | 2009-03-04 | Hydrauto Ab | Sequence controlled hydraulic cylinders |
| CN201747694U (en) * | 2010-07-15 | 2011-02-16 | 徐州重型机械有限公司 | Single-cylinder pin oil cylinder and telescopic arm and crane with same |
| CN102134044A (en) * | 2010-12-20 | 2011-07-27 | 长治清华机械厂 | Suspension arm sequential stretching/retracting hydraulic system |
| CN102619805A (en) * | 2012-04-27 | 2012-08-01 | 郑州宇通重工有限公司 | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially |
| CN205207322U (en) * | 2015-11-02 | 2016-05-04 | 长治清华机械厂 | Sequential oil cylinder |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023534A (en) * | 2017-05-24 | 2017-08-08 | 合肥长源液压股份有限公司 | A kind of order hydraulic cylinder group |
| CN108006010A (en) * | 2017-11-30 | 2018-05-08 | 徐州徐工液压件有限公司 | The sequential telescopic hydraulic cylinder of mechanical control stroke |
| CN108331797A (en) * | 2018-03-28 | 2018-07-27 | 徐工集团工程机械有限公司 | A kind of sand throwing extinguishing vehicle feeding equipment oil cylinder |
| CN108331797B (en) * | 2018-03-28 | 2023-12-08 | 江苏徐工工程机械研究院有限公司 | Oil cylinder for feeding device of sand throwing fire extinguishing vehicle |
| CN108716495A (en) * | 2018-07-10 | 2018-10-30 | 蚌埠市行星工程机械有限公司 | The built-in oil duct hydraulic cylinder group series connection asynchronous propulsion system of fitted outside |
| CN108716495B (en) * | 2018-07-10 | 2024-03-29 | 蚌埠市行星工程机械有限公司 | Built-in oil duct hydraulic cylinder group series external asynchronous propulsion system |
| CN109973463A (en) * | 2019-04-22 | 2019-07-05 | 韶关市起重机厂有限责任公司 | A kind of oil cylinder, Multi-cylinder sequential telescopic mechanism and engineering machinery that energy reliable sequence is flexible |
| CN109973463B (en) * | 2019-04-22 | 2021-03-02 | 韶关市起重机厂有限责任公司 | Oil cylinder capable of reliably and sequentially stretching, multi-oil-cylinder sequential stretching mechanism and engineering machinery |
| CN111980981A (en) * | 2020-08-27 | 2020-11-24 | 烟台未来自动装备有限责任公司 | Control method for sequential extension of multiple oil cylinders |
| CN113236618A (en) * | 2021-05-11 | 2021-08-10 | 燕山大学 | Multi-cylinder sequential telescopic hydraulic system |
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Application publication date: 20160106 |
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| RJ01 | Rejection of invention patent application after publication |