CN102979784B - A kind of hydraulic locking mechanism - Google Patents
A kind of hydraulic locking mechanism Download PDFInfo
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- CN102979784B CN102979784B CN201210524938.4A CN201210524938A CN102979784B CN 102979784 B CN102979784 B CN 102979784B CN 201210524938 A CN201210524938 A CN 201210524938A CN 102979784 B CN102979784 B CN 102979784B
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- net
- locking
- hydraulic
- oil sac
- cylinder body
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Abstract
The invention provides a kind of hydraulic locking mechanism, this hydraulic locking mechanism comprises: locking net, axial support cover and the net support ring of mechanism's cylinder body, flange end cap, hydraulic cylinder piston rod, hydraulic pressure oil sac, elastically deformable; Locking net and net support ring are enclosed within on piston rod, between locking net and piston rod, leave gap, net support ring is arranged on the two ends of locking net with screw, hydraulic pressure oil sac is enclosed within the outside of locking net, and contact with net, axial support cover is arranged on the outside of oil sac, and the outside of axial support cover is mechanism's cylinder body; The oil-in of connecting fluid force feed capsule reaches outer end by the hole on cylinder body, has easy to manufacture, easy to maintenancely, and volume is little, response is fast, reliability high.
Description
Technical field
The present invention relates to a kind of self-locking hydraulic cylinder retaining mechanism, particularly a kind of hydraulic locking mechanism that strain realization locking occurs under action of hydraulic force by resilient metal member.
Background technology
In hydraulic system, during using hydraulic cylinder as actuator, sometimes need to make hydraulic cylinder at an arbitrary position or a certain fixed position keeps stopping and bear certain load force, at this moment hydraulic cylinder needs locking, be widely used at present hydraulic circuit and reach this object, but at the special dimension such as aircraft, submersible, as each point of separation of aircraft door, submarine etc., or when actuator working position is equipped with to high-precision requirement, hydraulic circuit locking is difficult to meet reliability requirement.
Summary of the invention
Goal of the invention: the invention provides a kind of hydraulic locking mechanism, its objective is the solution not high problem of hydraulic circuit reliable lock in the past. The present invention designs a kind of improved hydraulic locking mechanism, and it has easy to manufacture, easy to maintenance, and volume is little, response is fast, reliability high.
Technical scheme:
A kind of hydraulic locking mechanism, is characterized in that: this hydraulic locking mechanism comprises: locking net, axial support cover and the net support ring of mechanism's cylinder body, flange end cap, hydraulic cylinder piston rod, hydraulic pressure oil sac, elastically deformable; Locking net and net support ring are enclosed within on piston rod, between locking net and piston rod, leave gap, net support ring is arranged on the two ends of locking net with screw, hydraulic pressure oil sac is enclosed within the outside of locking net, and contact with net, axial support cover is arranged on the outside of oil sac, and the outside of axial support cover is mechanism's cylinder body; The oil-in of connecting fluid force feed capsule reaches outer end by the hole on cylinder body.
Mechanism's cylinder body locks its circumferential position with dog screw, and mechanism's cylinder body is compressed by end cap.
The antifriction cover that locking net entirety is made for tin bronze wear-resisting and good springiness or the antifriction cover that is inlaid with tin bronze, the mesh on locking net is rectangular track type or ellipse.
Locking net is made up of two parts, comprise main part and the second fixing end block, the first stiff end in main part is screwed on net support ring at one end, the second stiff end of main part and the second fixing end block riveted joint are integrated, and the second fixing end block is fixed on the net support ring of the other end by hold-down screw.
Between main part and the second fixing end block, for inclined-plane is connected, on the inclined-plane between main part and the second fixing end block, scribble sealant layer.
0.02% to 0.1% of the short locking net of the length length of the Length Ratio axial support cover of locking net.
The main body of hydraulic pressure oil sac is made up of plastics or rubber, embeds layer of metal net in the inside of oil sac wall.
Hydraulic pressure oil sac be inside be provided with cavity hollow structure.
Hydraulic pressure oil sac is plastics or rubber paster, with binding agent be attached at locking net on, and two ends by compress baffle plate be pressed on locking net on, now with locking net be integral type.
Axial support cover is divided into multiple parts diametrically, and each part is arc-shaped structure, all leaves logical hydraulic fluid port in every part.
Advantage and effect: the present invention is a kind of hydraulic locking mechanism, this hydraulic locking mechanism comprises locking net, axial support cover, hydraulic pressure oil sac, net support ring and dog screw. Net support ring is arranged on the two ends of locking net, hydraulic pressure oil sac is enclosed within on locking net, in oil sac, being filled with hydraulic oil compressing locking net generation strain holds piston rod tightly and realizes hydraulic cylinder self locking, axial support cover is arranged on the outside of oil sac, the length of its Length Ratio locking net is long by 0.02% to 0.1%, net can be strutted.
The invention has the beneficial effects as follows:
(1) locking net has high resiliency, while therefore locking, respond flexibly, and resistance to bending, the life-span is long;
(2) adopt and there is flexible hydraulic pressure oil sac and carry out liquid carrying force feed, make the in-house leakage that do not produce;
(3) this locking mechanism structure is simple, is easy to manufacture, and installation, maintenance is convenient.
Brief description of the drawings:
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is the schematic diagram at the position of the circle sign of Fig. 1 in the present invention;
Fig. 3 is the another kind of structural representation of Fig. 1;
Fig. 4 is the perspective view of axial support cover;
Fig. 5 is the decomposing schematic representation of this axial support cover;
Fig. 6 is the perspective view that locking net is connected with plastics or rubber paster;
Fig. 7 is the perspective view of locking net;
Fig. 8 is the structural representation of the another kind of form of locking net.
Detailed description of the invention:Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, the invention provides a kind of hydraulic locking mechanism, this hydraulic locking mechanism comprises: mechanism's cylinder body 4, flange end cap 5, hydraulic cylinder piston rod 6, hydraulic pressure oil sac 11, locking net 12, axial support cover 13 and net support ring 14; Locking net 12 and net support ring 14 are enclosed within on piston rod 6, between the locking net 12 of elastically deformable and piston rod 6, leave gap, this gap satisfy condition for: when strain occurs net 12, lock net 12 and can hold piston rod 6 tightly when locking; Net support ring 14 use screws are arranged on the two ends of locking net 12, and hydraulic pressure oil sac 11 is enclosed within the outside of locking net 12, and contacts with net 12, and axial support cover 13 is arranged on the outside of oil sac 11, and the outside of axial support cover 13 is mechanism's cylinder body 4; The oil-in A of connecting fluid force feed capsule 11 reaches outer end by the hole on cylinder body.
Mechanism's cylinder body 4 use dog screw 3 its circumferential positions of locking, mechanism's cylinder body 4 is compressed by end cap 5.
The antifriction cover that locking net 12 entirety are made for tin bronze wear-resisting and good springiness or the antifriction cover that is inlaid with tin bronze, the mesh on locking net 12 is rectangular track type or ellipse.
Locking net 12 is made up of two parts, comprise main part 121 and the second fixing end block 122, the first stiff end in main part 121 is fixed on screw 7 on the net support ring 14 of one end, the second stiff end of main part 121 and the second fixing end block 122 riveted joints are integrated, and the second fixing end block 122 is fixed on the net support ring 14 of the other end by hold-down screw 2.
Between main part 121 and the second fixing end block 122, for inclined-plane is connected, on the inclined-plane between main part 121 and the second fixing end block 122, scribble sealant layer.
0.02% to 0.1% of short locking net 12 length of length of the Length Ratio axial support cover 13 of locking net 12.
The main body of hydraulic pressure oil sac 11 is made up of plastics or rubber, embeds layer of metal net 111 in the inside of oil sac wall.
Hydraulic pressure oil sac 11 for inner be provided with cavity 1 hollow structure.
If figure hydraulic pressure oil sac 11 is plastics or rubber paster 15, with binding agent 131 be attached at locking net on, and two ends by compress baffle plate 16 be pressed on locking net on, now with locking net be integral type.
Axial support cover 13 is divided into multiple parts diametrically, and each part is arc-shaped structure, all leaves logical hydraulic fluid port in every part.
As shown in Figure 2, locking net 12 of the present invention is made up of two parts, wherein 121 main parts for locking net, 122 the second stiff ends for locking net. When installation, first by the main part of net 12 by the first stiff end with screw 7(as Fig. 1) be fixed on net support ring 14, then hydraulic pressure oil sac 11 is enclosed within on locking net 12, finally at the sloped contact surface B(of locking net two parts 121 and 122 as Fig. 2) on smear after one deck fluid sealant, both are connected together and use the method for riveted joint to make it to become one, then the second stiff end 122 is fixed on the net support ring 14 of the other end by hold-down screw 2. Axial support cover 13 is arranged on the outside of oil sac 11, because its internal diameter is less than the external diameter of net support ring 14, so as shown in Figure 4, axial support cover is made up of multiple circular arc portions, and every part all leaves logical hydraulic fluid port, its Length Ratio locking net 12 is long by 0.02% to 0.1% simultaneously, is beneficial to it to strut vertically; After locking device integral installation, pass piston rod 6 and be arranged in mechanism's cylinder body 4, with dog screw 3 its circumferential positions of locking, finally being compressed by the end cap 5 on cylinder body.
Hydraulic locking mechanism of the present invention is applicable to need the hydraulic cylinder of self-locking.
In the time that needs are locked, by oil-in A, to the interior oiling of hydraulic pressure oil sac 11, under the effect of hydraulic oil, there is strain and hold piston rod 6 tightly in hydraulic pressure oil sac 11 compressing locking nets 12, reaches locking object. And in the wall of hydraulic pressure oil sac 11, there is layer of metal net 111, prevent that hydraulic pressure oil sac protrudes the mesh of locking net 12 under pressure, cause the infringement to hydraulic pressure oil sac, as shown in Figure 2.
In the time that piston rod need to move, the oil circuit pressure release that oil-in A connects, there is not strain in locking net 12, returns to original position, separates with piston rod 6, and piston rod 6 just can freely-movable.
As shown in Figure 3, the hydraulic pressure oil sac 11 in Fig. 1 is replaced by a kind of plastics or rubber paster 15 to the mode of another kind of liquid carrying force feed of the present invention, is attached at and locks on net 12, as shown in Figure 6 with binding agent 131; And two ends are pressed on locking net by compressing baffle plate 16, and locking net 12 is now integral type.
In the present invention, the mesh of related locking net has two kinds of shapes, as shown in Figure 7, Figure 8.
Claims (7)
1. a hydraulic locking mechanism, is characterized in that: this hydraulic locking mechanism comprises: locking net (12), axial support cover (13) and the net support ring (14) of mechanism's cylinder body (4), flange end cap (5), hydraulic cylinder piston rod (6), hydraulic pressure oil sac (11), elastically deformable; Locking net (12) and net support ring (14) are enclosed within on piston rod (6), between locking net (12) and piston rod (6), leave gap, net support ring (14) is arranged on the two ends of locking net (12) with screw, hydraulic pressure oil sac (11) is enclosed within the outside of locking net (12), and contact with net (12), axial support cover (13) is arranged on the outside of oil sac (11), and the outside of axial support cover (13) is mechanism's cylinder body (4); The oil-in (A) of connecting fluid force feed capsule (11) reaches outer end by the hole on cylinder body;
Mechanism's cylinder body (4) locks its circumferential position with dog screw (3), and mechanism's cylinder body (4) is compressed by end cap (5);
The antifriction cover that locking net (12) entirety is made for tin bronze wear-resisting and good springiness or the antifriction cover that is inlaid with tin bronze, the mesh on locking net (12) is rectangular track type or ellipse;
Locking net (12) is made up of two parts, comprise main part (121) and the second fixing end block (122), the first screw for stiff end (7) in main part (121) is fixed on the net support ring (14) of one end, the second stiff end of main part (121) and the second fixing end block (122) riveted joint are integrated, and the second fixing end block (122) is fixed on the net support ring (14) of the other end by hold-down screw (2).
2. hydraulic locking mechanism according to claim 1, it is characterized in that: between main part (121) and the second fixing end block (122), for inclined-plane is connected, on the inclined-plane between main part (121) and the second fixing end block (122), scribble sealant layer.
3. hydraulic locking mechanism according to claim 1, is characterized in that: 0.02% to 0.1% of the short locking net of length (12) length of the Length Ratio axial support cover (13) of locking net (12).
4. hydraulic locking mechanism according to claim 1, is characterized in that: the main body of hydraulic pressure oil sac (11) is made up of plastics or rubber, embeds layer of metal net (111) in the inside of oil sac wall.
5. hydraulic locking mechanism according to claim 1, is characterized in that: hydraulic pressure oil sac (11) for inside be provided with cavity (1) hollow structure.
6. hydraulic locking mechanism according to claim 1, it is characterized in that: hydraulic pressure oil sac (11) is plastics or rubber paster, with binding agent be attached at locking net on, and two ends by compress baffle plate (16) be pressed on locking net on, now with locking net be integral type.
7. hydraulic locking mechanism according to claim 1, is characterized in that: axial support cover (13) is divided into multiple parts diametrically, and each part is arc-shaped structure, all leaves logical hydraulic fluid port in every part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524938.4A CN102979784B (en) | 2012-12-10 | 2012-12-10 | A kind of hydraulic locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524938.4A CN102979784B (en) | 2012-12-10 | 2012-12-10 | A kind of hydraulic locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102979784A CN102979784A (en) | 2013-03-20 |
| CN102979784B true CN102979784B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524938.4A Expired - Fee Related CN102979784B (en) | 2012-12-10 | 2012-12-10 | A kind of hydraulic locking mechanism |
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| Country | Link |
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| CN (1) | CN102979784B (en) |
Families Citing this family (6)
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|---|---|---|---|---|
| CN104833489B (en) * | 2014-02-12 | 2017-12-26 | 沈阳工业大学 | A kind of hydraulic locking axle sleeve performance and reliability test platform |
| CN103978235B (en) * | 2014-05-13 | 2017-04-12 | 秦川机床工具集团股份公司 | Compact ring type radial high-accuracy locating and clamping mechanism and manufacturing method thereof |
| WO2017052433A1 (en) * | 2015-09-24 | 2017-03-30 | Saab Ab | A modular fluid actuator system |
| CN107340121A (en) * | 2017-06-19 | 2017-11-10 | 镇江四联机电科技有限公司 | A kind of hydraulic locking axle sleeve experimental rig |
| CN108869445B (en) * | 2018-08-22 | 2020-07-31 | 江苏大学 | Friction-regeneration-controllable friction-free air cylinder |
| CN117984137B (en) * | 2024-04-03 | 2024-06-04 | 宁波天控五轴数控技术有限公司 | Hydraulic clamping mechanism based on force sealing and five-axis swing head clamping system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU754134A1 (en) * | 1977-04-26 | 1980-08-07 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Apparatus for locking hydraulic-engine rod or shaft |
| US5355707A (en) * | 1991-08-14 | 1994-10-18 | Kabushiki Kaisha Kobe Seiko Sho | Rolling mill and method for operating rolling mill |
| EP1898103A2 (en) * | 2006-09-06 | 2008-03-12 | Hydro Leduc | Hydraulic cylinder with automatic locking |
| CN201866011U (en) * | 2010-11-22 | 2011-06-15 | 北京机械设备研究所 | Locking device of rectilinear motion oil cylinder |
| CN202251244U (en) * | 2011-09-08 | 2012-05-30 | 韶关市伟光液压油缸有限公司 | Novel hydraulic force applying locker |
| CN102556013A (en) * | 2012-02-09 | 2012-07-11 | 北京机械设备研究所 | Leveling-locking device of launch vehicle |
| CN202955063U (en) * | 2012-12-10 | 2013-05-29 | 沈阳工业大学 | Hydraulic locking mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176807A (en) * | 2001-12-12 | 2003-06-27 | Komatsu Ltd | Hydraulic cylinder |
| DE102004010987B4 (en) * | 2004-03-03 | 2013-08-22 | Klaus Hofmann | backup unit |
-
2012
- 2012-12-10 CN CN201210524938.4A patent/CN102979784B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU754134A1 (en) * | 1977-04-26 | 1980-08-07 | Челябинский Политехнический Институт Им.Ленинского Комсомола | Apparatus for locking hydraulic-engine rod or shaft |
| US5355707A (en) * | 1991-08-14 | 1994-10-18 | Kabushiki Kaisha Kobe Seiko Sho | Rolling mill and method for operating rolling mill |
| EP1898103A2 (en) * | 2006-09-06 | 2008-03-12 | Hydro Leduc | Hydraulic cylinder with automatic locking |
| CN201866011U (en) * | 2010-11-22 | 2011-06-15 | 北京机械设备研究所 | Locking device of rectilinear motion oil cylinder |
| CN202251244U (en) * | 2011-09-08 | 2012-05-30 | 韶关市伟光液压油缸有限公司 | Novel hydraulic force applying locker |
| CN102556013A (en) * | 2012-02-09 | 2012-07-11 | 北京机械设备研究所 | Leveling-locking device of launch vehicle |
| CN202955063U (en) * | 2012-12-10 | 2013-05-29 | 沈阳工业大学 | Hydraulic locking mechanism |
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| CN102979784A (en) | 2013-03-20 |
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Granted publication date: 20160525 Termination date: 20181210 |
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