CN109780003A - A stroke limit two-stage telescopic thrust double-acting cylinder - Google Patents
A stroke limit two-stage telescopic thrust double-acting cylinder Download PDFInfo
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- CN109780003A CN109780003A CN201910099682.9A CN201910099682A CN109780003A CN 109780003 A CN109780003 A CN 109780003A CN 201910099682 A CN201910099682 A CN 201910099682A CN 109780003 A CN109780003 A CN 109780003A
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- 239000012530 fluid Substances 0.000 description 10
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Abstract
本申请提供一种行程限位二级伸缩推力双作用缸，涉及液压缸技术领域。包括外缸体、一级伸缩缸体和二级伸缩缸体，外缸体的一端设有球头，一级伸缩缸体设置在外缸体内部，二级伸缩缸体设置在一级伸缩缸体内部，二级伸缩缸体沿一级伸缩缸体内壁滑动，一级伸缩缸体与外缸体之间设有一级伸缩活塞，二级伸缩缸体与一级伸缩缸体之间设有二级伸缩活塞，一级伸缩缸体的内部设有一级推力腔和二级推力腔，二级伸缩活塞将二级推力腔分割为二级推力腔I和二级推力腔II，外缸体上设有有杆腔油口和无杆腔油口，无杆腔油口与一级推力腔连通，本申请可以实现两级伸缩缸的推力接近，又保证最大一级缸经不会因为太大而浪费材料，满足其特殊工况的需求。The application provides a stroke limit two-stage telescopic thrust double-acting cylinder, which relates to the technical field of hydraulic cylinders. It includes an outer cylinder, a first-level telescopic cylinder and a second-level telescopic cylinder. One end of the outer cylinder is provided with a ball head, the first-level telescopic cylinder is set inside the outer cylinder, and the second-level telescopic cylinder is set inside the first-level telescopic cylinder Inside, the second-stage telescopic cylinder slides along the inner wall of the first-stage telescopic cylinder, a first-stage telescopic piston is arranged between the first-stage telescopic cylinder and the outer cylinder, and a second-stage telescopic cylinder is arranged between the second-stage telescopic cylinder and the first-stage telescopic cylinder. Telescopic piston, a first-stage thrust cavity and a second-stage thrust cavity are arranged inside the first-stage telescopic cylinder. The second-stage telescopic piston divides the second-stage thrust cavity into two-stage thrust cavity I and two-stage thrust cavity II. The outer cylinder is provided with a second-stage thrust cavity. There is a rod cavity oil port and a rodless cavity oil port, and the rodless cavity oil port is communicated with the first-stage thrust cavity. The application can achieve the thrust of the two-stage telescopic cylinder close to, and ensure that the largest first-stage cylinder will not be wasted because it is too large. materials to meet the needs of its special working conditions.
Description
Technical field
This application involves hydraulic cylinder technical field more particularly to a kind of flexible thrust double acting cylinders of stroke limit second level.
Background technique
The thrust drop of existing two-stage telescopic cylinder, two-stage is big, when one timing of behaviour in service demand minimum thrust, two-stage cylinder
The cylinder that needed to be multiplied warp, wastes material.When applying working condition limits maximum thrust and minimum thrust, this scheme can not be real
It is existing.
Summary of the invention
This application provides a kind of flexible thrust double acting cylinders of stroke limit second level, to solve the problems of the prior art,
Reach and realize that the thrust of the telescopic cylinder of two stages is close, and guarantees maximum first-stage cylinder through the purpose of material will not be wasted because of too big.
The embodiment of the present invention provides a kind of flexible thrust double acting cylinder of stroke limit second level, including outer cylinder body, level-one are stretched
Cylinder body and the flexible cylinder body of second level, one end of outer cylinder body are equipped with bulb, and level-one stretches cylinder body setting in outer cylinder interior, and second level is flexible
Cylinder body setting is stretched cylinder interior in level-one, and the second level cylinder body that stretches stretches inboard wall of cylinder block sliding along level-one, level-one stretch cylinder body with
Level-one telescopic piston is equipped between outer cylinder body, second level, which is stretched, is equipped with second level telescopic piston between cylinder body and the flexible cylinder body of level-one, and one
The inside of the flexible cylinder body of grade is equipped with level-one thrust chamber and second level thrust chamber is divided into second level by second level thrust chamber, second level telescopic piston
Thrust chamber I and second level thrust chamber II, outer cylinder body are equipped with rod chamber hydraulic fluid port and rodless cavity hydraulic fluid port, rodless cavity hydraulic fluid port and level-one thrust
Chamber connection, rod chamber hydraulic fluid port are connected to second level thrust chamber, further include the flexible cylinder body limiting component of level-one and the flexible cylinder body limit of second level
Position component.
Optionally, the sum of sectional area of the second level thrust chamber I and second level thrust chamber II is equal to the section of level-one thrust chamber
Product.
Optionally, the flexible cylinder body limiting component of the level-one includes the first block being arranged on outer cylinder body inner sidewall, and
The first protrusion of the external side wall of level-one telescoping cylinder being adapted with the first block is set, and the first block is for limiting the first protrusion
Movement.
Optionally, the flexible cylinder body limiting component of the second level includes the second block being arranged on outer cylinder body inner sidewall, and
The second protrusion of the external side wall of second level telescoping cylinder being adapted with the second block is set, and the second block is for limiting the second protrusion
Movement.
Optionally, first block uses the positive stop key of 65Mn material.
Optionally, the second level stretches cylinder body equipped with overflow hole.
Optionally, the level-one telescopic piston is equipped with sealing ring.
Optionally, the second level telescopic piston is equipped with sealing ring.Optionally, described；
The prior art is compared, the beneficial effects of the present invention are:
Stroke limit second level in the application is stretched, and there are three thrust chambers for the design of thrust double acting cylinder, and it is one that level-one, which is stretched,
A level-one thrust chamber, second level is flexible, and there are two thrust chambers, including second level thrust chamber I and second level thrust chamber II, because of the thrust of oil cylinder
It is thrust for F=A*P, F, A is oil cylinder piston sectional area, and P is operating pressure.Level-one is stretched, and cylinder bore is big, and A sectional area is big, pushes away
Power is big；The flexible cylinder bore of second level is small, but designs there are two thrust chamber, and the flexible A sectional area of the sectional area and level-one of A1+A2 approaches,
To realize that thrust is close, the thrust that the telescopic cylinder of two stages may be implemented is close, and guarantees that maximum first-stage cylinder warp will not be because of too big
And material is wasted, meet the needs of its special operation condition.
Detailed description of the invention
To be illustrated more clearly that background technique or technical solution of the present invention, below to the prior art or specific embodiment
The attached drawing of middle combined use is briefly described；It should be evident that below in conjunction with the attached drawing side of being only for of specific embodiment
Just understand the embodiment of the present invention, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other drawings based on these drawings；
Fig. 1 is the schematic cross-sectional view of the flexible thrust double acting cylinder of stroke limit second level provided in an embodiment of the present invention；
Fig. 2 is that the flexible thrust double acting cylinder post exercise sectional structure of stroke limit second level provided in an embodiment of the present invention shows
It is intended to；
Wherein: 1- outer cylinder body, 2- level-one are stretched cylinder body, and 3- second level is stretched cylinder body, 4- bulb, 5- level-one telescopic piston, 6-
Second level telescopic piston, 7- level-one thrust chamber, 8- second level thrust chamber I, 9- second level thrust chamber II, 10- rod chamber hydraulic fluid port, 11- is without bar
Chamber hydraulic fluid port, 12- level-one are stretched cylinder body limiting component, and 13- second level is stretched cylinder body limiting component.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Stroke limit second level provided in an embodiment of the present invention is stretched thrust double acting cylinder, including outer cylinder body 1, level-one telescoping cylinder
Body 2 and the flexible cylinder body 3 of second level.
Fig. 1 is the schematic cross-sectional view of the flexible thrust double acting cylinder of stroke limit second level provided in an embodiment of the present invention；
Fig. 2 is the flexible thrust double acting cylinder post exercise schematic cross-sectional view of stroke limit second level provided in an embodiment of the present invention；Such as
Shown in Fig. 1 and Fig. 2, one end of outer cylinder body 1 is equipped with bulb 4, and bulb 4 carries out thrust work for cooperating ball cup, to actual condition
With.
Level-one stretches the setting of cylinder body 2 inside outer cylinder body 1, and the flexible setting of cylinder body 3 of second level is stretched in level-one inside cylinder body 2,
Second level stretch cylinder body 3 along level-one stretch 2 inner wall of cylinder body sliding.
Level-one, which is stretched, is equipped with level-one telescopic piston 5 between cylinder body 2 and outer cylinder body 1, the flexible cylinder body 3 of second level and level-one telescoping cylinder
Second level telescopic piston 6 is equipped between body 2, the inside of the flexible cylinder body 2 of level-one is equipped with level-one thrust chamber 7 and second level thrust chamber, second level
Second level thrust chamber is divided into second level thrust chamber I8 and second level thrust chamber II9 by telescopic piston 6.
Sealing ring is equipped on the level-one telescopic piston 5 and second level telescopic piston 6.
Outer cylinder body 1 is equipped with rod chamber hydraulic fluid port 10 and rodless cavity hydraulic fluid port 11, and rodless cavity hydraulic fluid port 11 and level-one thrust chamber 7 connect
Logical, rod chamber hydraulic fluid port 10 is connected to second level thrust chamber,.
In the present embodiment, the sum of sectional area of the second level thrust chamber I8 and second level thrust chamber II9 is equal to level-one thrust chamber 7
Sectional area.
The application further includes the flexible cylinder body limiting component 12 of level-one and the flexible cylinder body limiting component 13 of second level.
The flexible cylinder body limiting component 12 of the level-one includes the first block being arranged on 1 inner sidewall of outer cylinder body, and setting
It stretches the first protrusion of 2 lateral wall of cylinder body being adapted with the first block in level-one, it is raised that the first block is used to limit first
Movement.
The flexible cylinder body limiting component 13 of the second level includes the second block being arranged on 1 inner sidewall of outer cylinder body, and setting
It stretches the second protrusion of 3 lateral wall of cylinder body being adapted with the second block in second level, it is raised that the second block is used to limit second
Movement.
In the present embodiment, first block and the second block are all made of the positive stop key of 65Mn material.
The flexible cylinder body 3 of the second level is equipped with overflow hole, and oil cylinder is made to realize the effect of control stroke, guarantees that oil cylinder uses peace
Entirely.
The embodiment of the present embodiment are as follows:
Stroke limit second level in the application is stretched, and there are three thrust chambers for the design of thrust double acting cylinder, and it is one that level-one, which is stretched,
A level-one thrust chamber, second level is flexible, and there are two thrust chambers, including second level thrust chamber I and second level thrust chamber II, because of the thrust of oil cylinder
It is thrust for F=A*P, F, A is oil cylinder piston sectional area, and P is operating pressure.Level-one is stretched, and cylinder bore is big, and A sectional area is big, pushes away
Power is big；The flexible cylinder bore of second level is small, but designs there are two thrust chamber, and the flexible A sectional area of the sectional area and level-one of A1+A2 approaches,
To realize that thrust is close, the thrust that the telescopic cylinder of two stages may be implemented is close, and guarantees that maximum first-stage cylinder warp will not be because of too big
And material is wasted, meet the needs of its special operation condition.
The flexible thrust double acting cylinder of stroke limit second level in the embodiment of the present invention is described in detail above.This reality
Applying the "upper" in example, "lower", " left side " and " right side " is with respect to the position description in Figure of description.This part is using specific implementation
Principle and implementation of the present invention are described for example, and it is of the invention that the above embodiments are only used to help understand
Core concept, without departing from the principles of the present invention, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099682.9A CN109780003A (en) | 2019-01-31 | 2019-01-31 | A stroke limit two-stage telescopic thrust double-acting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099682.9A CN109780003A (en) | 2019-01-31 | 2019-01-31 | A stroke limit two-stage telescopic thrust double-acting cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN109780003A true CN109780003A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910099682.9A Pending CN109780003A (en) | 2019-01-31 | 2019-01-31 | A stroke limit two-stage telescopic thrust double-acting cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816286A (en) * | 2021-09-26 | 2021-12-21 | 三一汽车起重机械有限公司 | Telescopic cylinder, crane boom and crane |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865178A (en) * | 2009-04-15 | 2010-10-20 | 北京谊安医疗系统股份有限公司 | Two-stage hydraulic cylinder |
| CN103032406A (en) * | 2012-12-30 | 2013-04-10 | 蚌埠液力机械有限公司 | Synchronized two-stage telescopic cylinder |
| CN203532406U (en) * | 2013-05-14 | 2014-04-09 | 张家口长城液压油缸有限公司 | Multi-stage double-action reinforced hydraulic cylinder |
| CN203614507U (en) * | 2013-12-17 | 2014-05-28 | 泸州市龙马潭区长江液压件有限公司 | Two-stage equal-thrust hydraulic oil cylinder |
| CN103867524A (en) * | 2014-03-26 | 2014-06-18 | 中国建筑科学研究院建筑机械化研究分院 | Double-acting second-level hydraulic cylinder |
| CN208040823U (en) * | 2018-03-27 | 2018-11-02 | 厦门银华机械有限公司 | Etc. pressure 2-level hydraulic cylinder structure |
| CN108953283A (en) * | 2018-09-18 | 2018-12-07 | 重庆市巴山液压附件厂有限公司 | A kind of synchronous hydraulic oil cylinder |
| CN208281274U (en) * | 2018-11-20 | 2018-12-25 | 江苏恒立液压股份有限公司 | Two-stage telescopic cylinder and engineering machinery with it |
| CN209976966U (en) * | 2019-01-31 | 2020-01-21 | 山东万通液压股份有限公司 | Two-stage telescopic thrust double-acting cylinder with stroke limiting function |
-
2019
- 2019-01-31 CN CN201910099682.9A patent/CN109780003A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865178A (en) * | 2009-04-15 | 2010-10-20 | 北京谊安医疗系统股份有限公司 | Two-stage hydraulic cylinder |
| CN103032406A (en) * | 2012-12-30 | 2013-04-10 | 蚌埠液力机械有限公司 | Synchronized two-stage telescopic cylinder |
| CN203532406U (en) * | 2013-05-14 | 2014-04-09 | 张家口长城液压油缸有限公司 | Multi-stage double-action reinforced hydraulic cylinder |
| CN203614507U (en) * | 2013-12-17 | 2014-05-28 | 泸州市龙马潭区长江液压件有限公司 | Two-stage equal-thrust hydraulic oil cylinder |
| CN103867524A (en) * | 2014-03-26 | 2014-06-18 | 中国建筑科学研究院建筑机械化研究分院 | Double-acting second-level hydraulic cylinder |
| CN208040823U (en) * | 2018-03-27 | 2018-11-02 | 厦门银华机械有限公司 | Etc. pressure 2-level hydraulic cylinder structure |
| CN108953283A (en) * | 2018-09-18 | 2018-12-07 | 重庆市巴山液压附件厂有限公司 | A kind of synchronous hydraulic oil cylinder |
| CN208281274U (en) * | 2018-11-20 | 2018-12-25 | 江苏恒立液压股份有限公司 | Two-stage telescopic cylinder and engineering machinery with it |
| CN209976966U (en) * | 2019-01-31 | 2020-01-21 | 山东万通液压股份有限公司 | Two-stage telescopic thrust double-acting cylinder with stroke limiting function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816286A (en) * | 2021-09-26 | 2021-12-21 | 三一汽车起重机械有限公司 | Telescopic cylinder, crane boom and crane |
| CN113816286B (en) * | 2021-09-26 | 2023-08-22 | 三一汽车起重机械有限公司 | Telescopic cylinder, crane boom and crane |
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Application publication date: 20190521 |