CN104006022A - Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner - Google Patents
Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner Download PDFInfo
- Publication number
- CN104006022A CN104006022A CN201410234449.4A CN201410234449A CN104006022A CN 104006022 A CN104006022 A CN 104006022A CN 201410234449 A CN201410234449 A CN 201410234449A CN 104006022 A CN104006022 A CN 104006022A
- Authority
- CN
- China
- Prior art keywords
- oil
- cylinder barrel
- hydraulic cylinder
- oil duct
- dam
- 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
Links
Abstract
The invention discloses a hydraulic cylinder capable of automatically and mechanically locating a lift dam in a reciprocating manner. According to the hydraulic cylinder disclosed by the invention, a locking mechanism is arranged in a cylinder barrel (1); an oil return path is arranged on the locking mechanism; with use of a locking pin (7), the cylinder barrel (1) has a function of automatically locking or opening, and is capable of automatically locking a piston rod (2) when the lift dam lifts, so that damage of the hydraulic cylinder because of impact to the lift dam by water flow or accidental fall or closing of the lift dam caused by leakage of the hydraulic cylinder can be avoided, opening and closing stability and safety of the lift dam can be greatly increased; additionally, either locking or loosening is automatic, therefore, the hydraulic cylinder is high in a degree of automation, as well as high in a working efficiency.
Description
Technical field
The invention belongs to hydraulic engineering technical field, relate in particular to automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder.
Background technique
Hydraulic lifting dam is widely used in the construction such as agricultural irrigation, fishery, ship lock, seawater gear tide, city river landscape engineering and small hydropower station,
Realizing in process of the present invention, inventor finds that prior art at least exists following problem: conventional hydraulic hoist dam adopt Driven by Hydraulic Cylinder, at dam body in rising when state, dam body is constantly subject to the impact of current, easily damage oil hydraulic cylinder, or cause oil hydraulic cylinder to lose efficacy, dam body declines, and adopt they sup-port lifting dam easily to cause misoperation, cause the damage on dam.
Summary of the invention
Technical problem to be solved by this invention be a kind of have automatically lock oil hydraulic cylinder function, without by they sup-port lifting dam, safe and reliable automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder, comprise cylinder barrel, piston rod and piston, described piston is arranged on piston rod and axial restraint, described cylinder barrel opening is provided with the guide sleeve with rod seal, near described piston rod upper piston, be set with the axle sleeve of axially locating, axle sleeve is provided with restraining groove, near outer wall described cylinder barrel opening is provided with the spring bolt that stretches into cylinder barrel and can slide on cylinder barrel casing wall, described spring bolt and restraining groove are suitable, also comprise the driving mechanism that drives spring bolt to slide.
Described driving mechanism comprises fixed base, fixed cover and spring, described fixed base is fixedly mounted on cylinder barrel outer wall, fixed cover is fixedly connected with fixed base, described spring bolt is slidably mounted in fixed cover, spring bolt near middle and fixed cover sealing are also divided into two parts by fixed cover inner space, spring bolt one end is the tight lock part that stretches into cylinder barrel, and this side space of fixed cover forms oil back chamber; The other end is connected with spring, and the oil back chamber of described fixed cover is provided with oil duct one, and described oil duct one is connected with hydraulic station; Described tight lock part is provided with the oil duct three being communicated with cylinder barrel, and when the position of oil duct three makes tight lock part depart from inner cavity of cylinder, oil duct three is communicated with oil back chamber.
Restraining groove one side is piston, and opposite side is the boss that approaches inner wall of cylinder on axle sleeve.
Described oil duct three comprises the radial direction oil that is arranged on the axial oil duct of tight lock part end and is communicated with axial oil duct, and in the time that tight lock part departs from inner cavity of cylinder, radial direction oil is communicated with oil back chamber.
Described spring bolt near middle is provided with two steps, is provided with the seal ring with fixed cover sealing between two steps.
At the bottom of described cylinder barrel cylinder, be provided with oil duct two, described oil duct two and oil duct one form the oil duct loop of oil hydraulic cylinder.
Described axle sleeve is provided with stair-stepping step away from one end of piston, and described guide sleeve is provided with the groove suitable with stair-stepping step.
A technological scheme tool in technique scheme has the following advantages or beneficial effect, there is the function of auto lock or unlatching by spring bolt cylinder barrel, can be in the time that dam body rises auto lock cylinder barrel, prevent that dam body cylinder barrel under the impact of current from damaging, dam body is closed, greatly improve stability and Security that dam body opens and closes.
Brief description of the drawings
The automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder of Fig. 1 for providing in the embodiment of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Mark in above-mentioned figure is: 1, cylinder barrel, 2, piston rod, 3, piston, 4, axle sleeve, 41, restraining groove, 42, step, 5, guide sleeve, 51, stepped slot, 6, fixed base, 7, spring bolt, 71, oil duct three, 8, fixed cover, 81, oil duct one, 82, oil back chamber, 9, spring, 10, oil duct two.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Referring to Fig. 1, automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder, comprise cylinder barrel 1, piston rod 2 and piston 3, piston 3 is arranged on piston rod 2 and axial restraint, cylinder barrel 1 opening is provided with the guide sleeve 5 sealing with piston rod 2, near piston rod 2 upper pistons 3, be set with the axle sleeve 4 of axially locating, axle sleeve 4 is provided with restraining groove 41, near outer wall cylinder barrel 1 opening is provided with the spring bolt 7 that stretches into cylinder barrel 1 and can slide on cylinder barrel 1 casing wall, spring bolt 7 is suitable with restraining groove 41, also comprises the driving mechanism that drives spring bolt 7 to slide.
Driving mechanism comprises fixed base 6, fixed cover 8 and spring 9, fixed base 6 is fixedly mounted on cylinder barrel 1 outer wall, fixed cover 8 is fixedly connected with fixed base 6, spring bolt 7 is slidably mounted in fixed cover 8, spring bolt 7 near middles and fixed cover 8 seal and fixed cover 8 inner spaces are divided into two parts, spring bolt 7 one end are the tight lock part that stretches into cylinder barrel 1, and this side space of fixed cover 8 forms oil back chamber 82; The other end is connected with spring 9, and the oil back chamber 82 of fixed cover 8 is provided with oil duct 1, and oil duct 1 is connected with hydraulic station; Tight lock part is provided with the oil duct 3 71 being communicated with cylinder barrel 1, and when the position of oil duct 3 71 makes tight lock part depart from cylinder barrel 1 inner chamber, oil duct 3 71 is communicated with oil back chamber 82.
Restraining groove 41 1 sides are piston 3, and opposite side is the boss that approaches cylinder barrel 1 inwall on axle sleeve 4.
Oil duct 3 71 comprises the radial direction oil that is arranged on the axial oil duct of tight lock part end and is communicated with axial oil duct, and in the time that tight lock part departs from cylinder barrel 1 inner chamber, radial direction oil is communicated with oil back chamber 82.
Spring bolt 7 near middles are provided with two steps, between two steps, are provided with the seal ring sealing with fixed cover 8.
At the bottom of 1 of cylinder barrel, be provided with oil duct 2 10, oil duct 2 10 and oil duct 1 form the oil duct loop of oil hydraulic cylinders.
Axle sleeve 4 is provided with stair-stepping step 42 away from one end of piston 3, and guide sleeve 5 is provided with the stepped slot 51 suitable with stair-stepping step 42, be convenient to piston rod 2 in the time stretching out and cylinder barrel 1 location fixing.
Working procedure is as follows: hydraulic station pump oil, enter from oil duct 2 10, promote piston 3 to left movement, oil in extruding cylinder barrel 1 rod chamber, spring bolt 7 moves upward under oily pressure-acting, departs from gradually the cavity of cylinder barrel 1, the oil duct 3 71 of spring bolt 7 is communicated with oil back chamber 82 afterwards, oil in cylinder barrel 1 rod chamber enters oil back chamber 82 via oil duct 3 71, then gets back to hydraulic station through oil duct 1, completes the circulation of oil circuit.In the time that piston rod 2 moves to left-most position, axle sleeve 4 fits with guide sleeve 5, piston rod 2 remains static, and the oil in cylinder barrel 1 rod chamber is all discharged, and oil pressure reduces greatly until disappear, the pressure of spring bolt 7 suffered oil also disappears thereupon, spring 9 compresses spring bolt 7, and now restraining groove 41 positions on axle sleeve 4 are corresponding with the position of spring bolt 7, under the effect of spring 9, spring bolt 7 snaps in restraining groove 41, latching ram bar 2.In the time that needs unlock, hydraulic station enters oil pump through oil duct 1 in the oil back chamber 82 of fixed cover 8, under the pressure of oil back chamber 82 interior oil, the pressure that spring bolt 7 overcomes spring 9 moves upward, constantly extruding spring bolt 7, spring bolt 7 departs from from restraining groove 41, until the oil duct 3 71 of tight lock part is communicated with oil back chamber 82, hydraulic oil enters the rod chamber of cylinder barrel 1 from oil duct 3 71, the now locking of piston rod 2 is removed, hydraulic oil promotes piston 3, piston rod 2 is moved right, piston rod 2 shrinks, lifting dam dam body declines, oil in cylinder barrel 1 rodless cavity is got back to hydraulic station through oil duct 2 10, and so forth, realize to-and-fro motion the auto lock of piston rod 2, automatically terminate locking.
Adopt after above-mentioned structure, make oil hydraulic cylinder there is the function of auto lock or unlatching by spring bolt 7, can be in the time that lifting dam rises auto lock piston rod 2, prevent that lifting dam oil hydraulic cylinder under the impact of current from damaging or causing lifting dam surprisingly decline or close because oil hydraulic cylinder leaks, and improves stability and Security that lifting dam opens and closes greatly.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or without improving, design of the present invention and technological scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (7)
1. automatic reciprocating mechanical positioned-lifting dam oil hydraulic cylinder, comprise cylinder barrel (1), piston rod (2) and piston (3), described piston (3) is arranged on the upper also axial restraint of piston rod (2), described cylinder barrel (1) opening is provided with the guide sleeve (5) with piston rod (2) sealing, it is characterized in that, near described piston rod (2) upper piston (3), be set with the axle sleeve (4) of axially locating, axle sleeve (4) is provided with restraining groove (41), near outer wall described cylinder barrel (1) opening is provided with the spring bolt (7) that stretches into cylinder barrel (1) and can slide on cylinder barrel (1) casing wall, described spring bolt (7) is suitable with restraining groove (41), also comprise the driving mechanism that drives spring bolt (7) to slide.
2. automatic reciprocating mechanical positioned-lifting as claimed in claim 1 dam oil hydraulic cylinder, it is characterized in that, described driving mechanism comprises fixed base (6), fixed cover (8) and spring (9), described fixed base (6) is fixedly mounted on cylinder barrel (1) outer wall, and fixed cover (8) is fixedly connected with fixed base (6);
Described spring bolt (7) is slidably mounted in fixed cover (8), spring bolt (7) near middle and fixed cover (8) sealing are also divided into two parts by fixed cover (8) inner space, spring bolt (7) one end is for stretching into the tight lock part of cylinder barrel (1), and this side space of fixed cover (8) forms oil back chamber (82); The other end is connected with spring (9);
The oil back chamber (82) of described fixed cover (8) is provided with oil duct one (81), and described oil duct one (81) is connected with hydraulic station; Described tight lock part is provided with the oil duct three (71) being communicated with cylinder barrel (1), when the position of oil duct three (71) makes tight lock part depart from cylinder barrel (1) inner chamber, oil duct three (71) is communicated with oil back chamber (82).
3. described automatic reciprocating mechanical positioned-lifting as claimed in claim 2 dam oil hydraulic cylinder, it is characterized in that, described restraining groove (41) one sides are piston (3), and opposite side is the boss that approaches cylinder barrel (1) inwall on axle sleeve (4).
4. described automatic reciprocating mechanical positioned-lifting as claimed in claim 3 dam oil hydraulic cylinder, it is characterized in that, described oil duct three (71) comprises the radial direction oil that is arranged on the axial oil duct of tight lock part end and is communicated with axial oil duct, in the time that tight lock part departs from cylinder barrel (1) inner chamber, radial direction oil is communicated with oil back chamber (82).
5. described automatic reciprocating mechanical positioned-lifting as claimed in claim 4 dam oil hydraulic cylinder, is characterized in that, described spring bolt (7) near middle is provided with two steps, is provided with the seal ring with fixed cover (8) sealing between two steps.
6. described automatic reciprocating mechanical positioned-lifting as claimed in claim 5 dam oil hydraulic cylinder, it is characterized in that, described cylinder barrel (1) the cylinder end, is provided with oil duct two (10), and described oil duct two (10) and oil duct one (81) form the oil duct loop of oil hydraulic cylinder.
7. described automatic reciprocating mechanical positioned-lifting as claimed in claim 6 dam oil hydraulic cylinder, it is characterized in that, described axle sleeve (4) is provided with stair-stepping step (42) away from one end of piston (3), and described guide sleeve (5) is provided with the stepped slot (51) suitable with stair-stepping step (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234449.4A CN104006022A (en) | 2014-05-29 | 2014-05-29 | Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234449.4A CN104006022A (en) | 2014-05-29 | 2014-05-29 | Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104006022A true CN104006022A (en) | 2014-08-27 |
Family
ID=51366849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410234449.4A Pending CN104006022A (en) | 2014-05-29 | 2014-05-29 | Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006022A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454781A (en) * | 2014-11-04 | 2015-03-25 | 长沙中联消防机械有限公司 | Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle |
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
| CN104533877A (en) * | 2014-12-19 | 2015-04-22 | 常州液压成套设备厂有限公司 | Servomotor with automatic hydraulic locking function |
| CN105402203A (en) * | 2015-12-07 | 2016-03-16 | 郑州宇通重工有限公司 | Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve |
| CN105417176A (en) * | 2015-11-18 | 2016-03-23 | 江苏欣茂制药设备有限公司 | Feeding/discharging valve for bed coating granulator |
| CN112628234A (en) * | 2020-12-30 | 2021-04-09 | 中国航发长春控制科技有限公司 | Multi-position mechanical locking hydraulic cylinder |
| CN113062898A (en) * | 2021-04-20 | 2021-07-02 | 同济大学 | Multi-position mechanical locking hydraulic cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116018A (en) * | 1999-10-18 | 2001-04-27 | Smc Corp | Boosting type fluid pressure cylinder device having lock mechanism |
| CN2758546Y (en) * | 2004-12-28 | 2006-02-15 | 烟台兴德气动机械有限公司 | Mechanical locking hydraulic cylinder |
| EP1669612A2 (en) * | 2004-12-09 | 2006-06-14 | Bosch Rexroth Teknik AB | Linear cylinder unit with locking means |
| CN101725590A (en) * | 2009-11-30 | 2010-06-09 | 南京康尼机电股份有限公司 | Air driving device with locking unit |
| CN202118031U (en) * | 2011-06-23 | 2012-01-18 | 常德汉风液压机械有限公司 | Hydraulic oil cylinder with location lock |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN203856800U (en) * | 2014-05-29 | 2014-10-01 | 芜湖市银鸿液压件有限公司 | Automatic reciprocating mechanical positioning lifting dam hydraulic cylinder |
-
2014
- 2014-05-29 CN CN201410234449.4A patent/CN104006022A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116018A (en) * | 1999-10-18 | 2001-04-27 | Smc Corp | Boosting type fluid pressure cylinder device having lock mechanism |
| EP1669612A2 (en) * | 2004-12-09 | 2006-06-14 | Bosch Rexroth Teknik AB | Linear cylinder unit with locking means |
| CN2758546Y (en) * | 2004-12-28 | 2006-02-15 | 烟台兴德气动机械有限公司 | Mechanical locking hydraulic cylinder |
| CN101725590A (en) * | 2009-11-30 | 2010-06-09 | 南京康尼机电股份有限公司 | Air driving device with locking unit |
| CN202118031U (en) * | 2011-06-23 | 2012-01-18 | 常德汉风液压机械有限公司 | Hydraulic oil cylinder with location lock |
| CN202360504U (en) * | 2011-11-30 | 2012-08-01 | 宁波亚德客自动化工业有限公司 | Self-locking type cylinder |
| CN203856800U (en) * | 2014-05-29 | 2014-10-01 | 芜湖市银鸿液压件有限公司 | Automatic reciprocating mechanical positioning lifting dam hydraulic cylinder |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454780A (en) * | 2014-10-23 | 2015-03-25 | 长沙中联重科环卫机械有限公司 | Oil cylinder with mechanical locking function and hydraulic system |
| CN104454781A (en) * | 2014-11-04 | 2015-03-25 | 长沙中联消防机械有限公司 | Locking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle |
| CN104454781B (en) * | 2014-11-04 | 2017-05-24 | 长沙中联消防机械有限公司 | Locking derricking oil cylinder, oil cylinder control system and climbing fire-fighting truck or fire-fighting operation vehicle |
| CN104533877A (en) * | 2014-12-19 | 2015-04-22 | 常州液压成套设备厂有限公司 | Servomotor with automatic hydraulic locking function |
| CN104533877B (en) * | 2014-12-19 | 2016-08-31 | 常州液压成套设备厂有限公司 | There is the servomotor of automatic hydraulic lock function |
| CN105417176A (en) * | 2015-11-18 | 2016-03-23 | 江苏欣茂制药设备有限公司 | Feeding/discharging valve for bed coating granulator |
| CN105417176B (en) * | 2015-11-18 | 2018-07-31 | 江苏长江药业有限公司 | A kind of coating granulator entry/exit material valve |
| CN105402203A (en) * | 2015-12-07 | 2016-03-16 | 郑州宇通重工有限公司 | Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve |
| CN112628234A (en) * | 2020-12-30 | 2021-04-09 | 中国航发长春控制科技有限公司 | Multi-position mechanical locking hydraulic cylinder |
| CN113062898A (en) * | 2021-04-20 | 2021-07-02 | 同济大学 | Multi-position mechanical locking hydraulic cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104006022A (en) | Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner | |
| CN202280692U (en) | Steel ball locking type hydraulic cylinder | |
| CN203890972U (en) | Hydraulic arc-shaped lifting dam | |
| CN203856800U (en) | Automatic reciprocating mechanical positioning lifting dam hydraulic cylinder | |
| CN105402203A (en) | Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve | |
| CN207568968U (en) | A kind of stroke valve module and multistage hydraulic cylinder | |
| CN202040145U (en) | Multistage locking cylinder | |
| CN104088827B (en) | Bridge of boats springboard hydraulic pressure turn-over device | |
| CN103671344B (en) | Pumping oil cylinder and comprise the pumping equipment of this pumping oil cylinder | |
| CN105317766A (en) | Integrated hydraulic open-close machine | |
| CN104005386B (en) | Hydraulic pressure arc hoists dam | |
| CN205089725U (en) | Self -lock device of cylinder for environmental sanitation special car | |
| CN102094591A (en) | Fracturing packer for barefoot well | |
| CN202754726U (en) | Jacking hydraulic system of tower crane | |
| CN103899594B (en) | Internal expansion type locking cylinder manualemergency operating device and method | |
| RU151393U1 (en) | DUAL ACTION Borehole Pump | |
| CN211965841U (en) | Hydraulic servo system for sliding part of sand shooting molding machine | |
| CN214661199U (en) | Hydraulic cylinder | |
| CN102384124A (en) | Integral type minisize electrohydraulic actuator | |
| CN204573285U (en) | A kind of cylindrical valve servomotor cavity body structure and cylindrical valve servomotor | |
| CN103899598B (en) | Internal expansion type locking cylinder manual-operated emergent tripper and method | |
| CN210769174U (en) | Pneumatic oil pressure pump | |
| CN207921013U (en) | Supporting cylinder | |
| CN203394920U (en) | Hydraulic cylinder of hydraulic lock system for remote opening and closing of single rope grab | |
| CN202883541U (en) | Box integrated electric-hydraulic pusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140827 |
|
| RJ01 | Rejection of invention patent application after publication |