CN103899592B - There is a grade steel ball locking oil hydraulic cylinder - Google Patents
There is a grade steel ball locking oil hydraulic cylinder Download PDFInfo
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- CN103899592B CN103899592B CN201410124212.0A CN201410124212A CN103899592B CN 103899592 B CN103899592 B CN 103899592B CN 201410124212 A CN201410124212 A CN 201410124212A CN 103899592 B CN103899592 B CN 103899592B
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Abstract
There is a grade steel ball locking oil hydraulic cylinder, belong to locking oil hydraulic cylinder technical field, the technical problem solved be to provide a kind of need arbitrarily trip segment all can machine automatization locking have a grade enclosed locking oil hydraulic cylinder, the technological scheme adopted: outer cylinder is threaded with cylinder cap, inner wall of cylinder is provided with multiple tracks radial groove outside, inner cylinder tube be arranged on outer cylinder inner chamber and with outer cylinder inwall Spielpassung, piston rod, lock piston is all arranged on the inner chamber of inner cylinder tube, one end of piston rod and inner cylinder tube inwall Spielpassung, the other end is fixed by locknut through after cylinder cap, the inwall of lock piston and piston rod Spielpassung, outer wall is provided with groove and boss and boss and inner cylinder tube inwall Spielpassung, lock piston is provided with Steel Cable Baffle Ring away from one end of cylinder cap, one end of the other end elasticity linking springs, the other end of spring is arranged on the inner chamber of spring seat, oil pipe one end is through piston rod cavity and inner cylinder tube inner space, the other end reaches outside piston rod cavity, the present invention is used for locking oil hydraulic cylinder.
Description
Technical field
There is a grade steel ball locking oil hydraulic cylinder, belong to locking oil hydraulic cylinder technical field.
Background technique
Along with the raising of world's all trades and professions mechanization degree, the more and more extensive existing locking oil hydraulic cylinder of application of mechanical locking oil hydraulic cylinder is divided into stroke two ends to lock by locked position and needs trip segment to lock two kinds of forms.Steel ball locking is the locking of stroke two ends, and needing trip segment to lock has the forms such as fitting surface interference, outer plug pearl, additional clamping sleeve, screw piston rod, conical surface friction compression.
Outer plug pearl and additional compression lock set are decided to be manual locking, are not suitable with modernization operation.
Screw piston rod is locked as automatic operation, but each root oil hydraulic cylinder requires a spcific power mechanism and power source, and spare system is complicated, mechanism is huge, does not meet equipment hard-cover and simplifies requirement fast.
It is simple that conical surface friction compresses locking framework, but conical surface compression reaction thrust is limited, does not meet large-tonnage armament-related work needs.
Fitting surface interference locking requires very strict to magnitude of interference, magnitude of interference is large, and unlock pressure is large, requires high to oil sources and oil circuit; Magnitude of interference is little, and latching force is little, and it is unreliable to lock, the magnitude of interference of corresponding tonnage oil cylinder controls between several, simultaneously to product raw material, mechanical processing technique, heat treatedly require corresponding raising, cause difficulty of processing large, yield rate is low, is not suitable for the requirement of high-efficient development and energy consumption reduction.
Summary of the invention
The present invention overcome prior art exist deficiency, technical problem to be solved be to provide a kind of need arbitrarily trip segment all can machine automatization locking have a grade enclosed locking oil hydraulic cylinder, meet the special requirement of various equipment.
For solving the problems of the technologies described above, the technical solution adopted in the present invention: have a grade steel ball locking oil hydraulic cylinder, comprise outer cylinder, inner cylinder tube, piston rod, oil pipe, lock piston, steel ball, spring, spring seat and cylinder cap, described outer cylinder is threaded with described cylinder cap, inner wall of cylinder is provided with multiple tracks radial groove outside, described inner cylinder tube be arranged on outer cylinder inner chamber and with outer cylinder inwall Spielpassung, the radial circumference hole that a circle can place steel ball is provided with at inner cylinder tube outer wall, described piston rod, lock piston is all arranged on the inner chamber of inner cylinder tube, one end of piston rod and inner cylinder tube inwall Spielpassung, the other end is fixed by locknut through after cylinder cap, the inwall of described lock piston and piston rod Spielpassung and inwall can be connected with piston rod cavity, the outer wall of lock piston is provided with groove and boss and boss and inner cylinder tube inwall Spielpassung, lock piston is provided with the Steel Cable Baffle Ring to lock piston axial limiting away from one end of cylinder cap, one end of the other end elasticity linking springs, the other end of described spring is arranged on the inner chamber of spring seat, described spring seat is along piston rod to being arranged between inner cylinder tube inner chamber and piston rod external diameter, described oil pipe one end is through piston rod cavity and inner cylinder tube inner space, the other end is through cylinder cap, piston rod reaches outside piston rod cavity,
The inner and outer wall of described lock piston is provided with sealing guide collar, and one end outer wall of described piston rod and inner cylinder tube Spielpassung is also provided with sealing guide collar, at described outer cylinder, one end of cylinder cap is provided with dust ring and guide collar.
Described inner cylinder tube does not arrange spring, one end of spring seat is connected with support bulb, and described support bulb is contained in ball-and-socket chassis, and support bulb is fixed by screw thread by described ball-and-socket chassis and ball-and-socket platen, and described support bulb is provided with seal ring.
Described ball-and-socket chassis can be rotated along support bulb.
The one end reached outside piston rod cavity through cylinder cap, piston rod at described oil pipe is provided with joint.
Axially back-up ring is provided with along inner cylinder tube between described spring seat and inner cylinder tube.
The multiple tracks radial groove of described outer cylinder inwall is that equi-spaced apart is arranged.
Compared to the prior art the present invention has following beneficial effect.
One, inner cavity of cylinder is outside provided with the radial groove that multiple tracks can block steel ball, establishes a circle to place the radial circumference hole of steel ball at inner cylinder tube outer wall, the lock piston with piston rod Spielpassung is set at piston rod external diameter, oil pipe is set along piston rod cavity.When inner cylinder tube is in lockup state, steel ball is stuck between outer cylinder radial groove and inner cylinder tube radial circumference hole, when along oil pipe to the anti-chamber formed between piston rod and inner cylinder tube (i.e. b chamber) fuel feeding time, oil promotes lock piston and Compress Spring moves axially to cylinder cap one end, when the groove on lock piston external diameter moves to position immediately below steel ball, steel ball enters the groove of lock piston external diameter with regard to the groove departing from outer cylinder, make the external diameter of top lower than inner cylinder tube of steel ball, now inner cylinder tube is in released state, inner cylinder tube possesses flexible condition, the outlet that pressure oil communicates from lock piston with piston rod is simultaneously flowed out,
Then to the positive chamber formed between piston rod and inner cylinder tube (i.e. a chamber) fuel feeding, inner cylinder tube starts to extend, along with inner cylinder tube reaches a certain precalculated position, positive and negative chamber does not supply pressure oil, lock piston starts to one end axial direction away from cylinder cap under the action of the spring, so steel ball exits from the groove of lock piston gradually, until steel ball moves on the boss of lock piston, steel ball is stuck between outer cylinder radial groove and inner cylinder tube radial circumference hole again, now steel ball is locked by the groove of outer cylinder, inner cylinder tube is also locked by steel ball simultaneously, this enclosed mechanical caging realized by boss of lock piston is reliable and stable,
Move to the groove of the diverse location of outer cylinder along with steel ball, mechanical caging can be carried out to the trip segment that needs arbitrarily of oil hydraulic cylinder.So, the present invention passes through shirtsleeve operation, do not need the additional control energy and element, with regard to the mechanical caging needing arbitrarily trip segment achieved oil hydraulic cylinder of fast and reliable, avoid the unreliable problem of locking occurred in the total travel mechanical locking mechanism of prior art, profile of the present invention is succinct simultaneously, compact structure, take up room little, the various equipment needing arbitrarily trip segment to lock can be widely used in.
Two, by connecting the support bulb be contained in ball-and-socket chassis in one end of inner cylinder tube, support bulb and seal ring is installed, support bulb to be fixed by screw thread by ball-and-socket chassis and ball-and-socket platen, can by the present invention be used as various military hardware, civil engineering vehicle or other operationally pumping source do not work but can lock reliably and with long-term, in the equipment landing leg hydraulic cylinder without any soft leg phenomenon;
Ball-and-socket chassis can be rotated along support bulb and the adaptability of the present invention to out-of-flatness place is strengthened greatly, easy to use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, invention is further described.
Fig. 1 is the structural representation of invention.
Fig. 2 is the schematic appearance of invention.
Fig. 3 is the left view of Fig. 1.
In figure, 1 is ball-and-socket platen, and 2 is ball-and-socket chassis, 3 for supporting bulb, and 4 is outer cylinder, and 5 is inner cylinder tube, 6 is piston rod, and 7 is oil pipe, and 8 is lock piston, 9 is Steel Cable Baffle Ring, and 10 is steel ball, and 11 is spring, 12 is spring seat, and 13 is back-up ring, and 14 is cylinder cap, 15 is locknut, and 16 is joint, and 17 is sealing guide collar.
Embodiment
Embodiment one
As shown in Figure 1-Figure 3, there is a grade steel ball locking oil hydraulic cylinder, comprise outer cylinder 4, inner cylinder tube 5, piston rod 6, oil pipe 7, lock piston 8, steel ball 10, spring 11, spring seat 12 and cylinder cap 14, described outer cylinder 4 is threaded with described cylinder cap 14, outer cylinder 4 inwall is provided with multiple tracks radial groove, described inner cylinder tube 5 be arranged on outer cylinder 4 inner chamber and with outer cylinder 4 inwall Spielpassung, the radial circumference hole that a circle can place steel ball 10 is provided with at inner cylinder tube 5 outer wall, described piston rod 6, lock piston 8 is all arranged on the inner chamber of inner cylinder tube 5, one end of piston rod 6 and inner cylinder tube 5 inwall Spielpassung, the other end is fixed by locknut 15 through after cylinder cap 14, the inwall of described lock piston 8 and piston rod 6 Spielpassung and inwall can be connected with piston rod 6 inner chamber, the outer wall of lock piston 8 is provided with groove and boss and boss and inner cylinder tube 5 inwall Spielpassung, lock piston 8 is provided with the Steel Cable Baffle Ring 9 to lock piston 8 axial limiting away from one end of cylinder cap 14, one end of the other end elasticity linking springs 11, the other end of described spring 11 is arranged on the inner chamber of spring seat 12, described spring seat 12 is axially arranged between inner cylinder tube 5 inner chamber and piston rod 6 external diameter along piston rod 6, described oil pipe 7 one end is through piston rod 6 inner chamber and inner cylinder tube 5 inner space, the other end is through cylinder cap 14, piston rod 6 reaches outside piston rod 6 inner chamber,
The inner and outer wall of described lock piston 8 is provided with sealing guide collar 17, and described piston rod 6 is also provided with one end outer wall of inner cylinder tube 5 Spielpassung and seals guide collar 17.At described outer cylinder 4, one end of cylinder cap 14 is provided with dust ring and guide collar.
The one end reached outside piston rod 6 inner chamber through cylinder cap 14, piston rod 6 at described oil pipe 7 is provided with joint 16.
Axially back-up ring 13 is provided with along inner cylinder tube 5 between described spring seat 12 and inner cylinder tube 5.
The multiple tracks radial groove of described outer cylinder 4 inwall is that equi-spaced apart is arranged.
Spacing and the large I of the multiple tracks radial groove of outer cylinder 4 inwall of the present invention need design modifying according to real work.
Described lock piston 8 internal diameter and external diameter all install sealing guide collar, can block external impurities and enter in oil pocket b chamber, rise lock piston 8 leading role simultaneously.
The dust ring that described outer cylinder 4 is installed can be isolated the foreign material such as dust, water, vapour and be entered, and ensures the clean of outer cylinder 4 groove.
Described spring 11 is arranged in spring seat 12, can prevent spring 11 from contacting with piston rod 6 with inner cylinder tube 5, can also move axially by restraining spring 11.
Described outer cylinder 4, inner cylinder tube 5, cylinder cap 14, oil pipe 7, Steel Cable Baffle Ring 9, steel ball 10, spring 11, back-up ring 13, locknut 15, joint 16, sealing guide collar 17 is prior art.
Embodiment two
As shown in Figure 1-Figure 3, there is a grade steel ball locking oil hydraulic cylinder, comprise outer cylinder 4, inner cylinder tube 5, piston rod 6, oil pipe 7, lock piston 8, steel ball 10, spring 11, spring seat 12 and cylinder cap 14, described outer cylinder 4 is threaded with described cylinder cap 14, outer cylinder 4 inwall is provided with multiple tracks radial groove, described inner cylinder tube 5 be arranged on outer cylinder 4 inner chamber and with outer cylinder 4 inwall Spielpassung, the radial circumference hole that a circle can place steel ball 10 is provided with at inner cylinder tube 5 outer wall, described piston rod 6, lock piston 8 is all arranged on the inner chamber of inner cylinder tube 5, one end of piston rod 6 and inner cylinder tube 5 inwall Spielpassung, the other end is fixed by locknut 15 through after cylinder cap 14, the inwall of described lock piston 8 and piston rod 6 Spielpassung and inwall can be connected with piston rod 6 inner chamber, the outer wall of lock piston 8 is provided with groove and boss and boss and inner cylinder tube 5 inwall Spielpassung, lock piston 8 is provided with the Steel Cable Baffle Ring 9 to lock piston 8 axial limiting away from one end of cylinder cap 14, one end of the other end elasticity linking springs 11, the other end of described spring 11 is arranged on the inner chamber of spring seat 12, described spring seat 12 is axially arranged between inner cylinder tube 5 inner chamber and piston rod 6 external diameter along piston rod 6, described oil pipe 7 one end is through piston rod 6 inner chamber and inner cylinder tube 5 inner space, the other end is through cylinder cap 14, piston rod 6 reaches outside piston rod 6 inner chamber,
The inner and outer wall of described lock piston 8 is provided with sealing guide collar 17, and described piston rod 6 is also provided with one end outer wall of inner cylinder tube 5 Spielpassung and seals guide collar 17.At described outer cylinder 4, one end of cylinder cap 14 is provided with dust ring and guide collar.
Described inner cylinder tube 5 does not arrange spring 11, one end of spring seat 12 is connected with and supports bulb 3, and described support bulb 3 is contained in ball-and-socket chassis 2, and support bulb 3 is fixed by screw thread by described ball-and-socket chassis 2 and ball-and-socket platen 1, and described support bulb 3 is provided with seal ring.
Described ball-and-socket chassis 2 can be rotated along support bulb 3.
The one end reached outside piston rod 6 inner chamber through cylinder cap 14, piston rod 6 at described oil pipe 7 is provided with joint 16.
Axially back-up ring 13 is provided with along inner cylinder tube 5 between described spring seat 12 and inner cylinder tube 5.
The multiple tracks radial groove of described outer cylinder 4 inwall is that equi-spaced apart is arranged.
Spacing and the large I of the multiple tracks radial groove of outer cylinder 4 inwall of the present invention need design modifying according to real work.
Described lock piston 8 internal diameter and external diameter all install sealing guide collar, can block external impurities and enter in oil pocket b chamber, rise lock piston 8 leading role simultaneously.
The dust ring that described outer cylinder 4 is installed can be isolated the foreign material such as dust, water, vapour and be entered, and ensures the clean of outer cylinder 4 groove.
Described spring 11 is arranged in spring seat 12, can prevent spring 11 from contacting with piston rod 6 with inner cylinder tube 5, can also move axially by restraining spring 11.
Described outer cylinder 4, inner cylinder tube 5, cylinder cap 14, oil pipe 7, Steel Cable Baffle Ring 9, steel ball 10, spring 11, back-up ring 13, locknut 15, joint 16, sealing guide collar 17 is prior art.
Claims (6)
1. there is a grade steel ball locking oil hydraulic cylinder, it is characterized in that: comprise outer cylinder (4), inner cylinder tube (5), piston rod (6), oil pipe (7), lock piston (8), steel ball (10), spring (11), spring seat (12) and cylinder cap (14), described outer cylinder (4) is threaded with described cylinder cap (14), outer cylinder (4) inwall is provided with multiple tracks radial groove, described inner cylinder tube (5) be arranged on outer cylinder (4) inner chamber and with outer cylinder (4) inwall Spielpassung, the radial circumference hole that a circle can place steel ball (10) is provided with at inner cylinder tube (5) outer wall, described piston rod (6), lock piston (8) is all arranged on the inner chamber of inner cylinder tube (5), one end of piston rod (6) and inner cylinder tube (5) inwall Spielpassung, the other end is fixed by locknut (15) through after cylinder cap (14), the inwall of described lock piston (8) and piston rod (6) Spielpassung and inwall can be connected with piston rod (6) inner chamber, the outer wall of lock piston (8) is provided with groove and boss and boss and inner cylinder tube (5) inwall Spielpassung, lock piston (8) is provided with the Steel Cable Baffle Ring (9) to lock piston (8) axial limiting away from one end of cylinder cap (14), one end of the other end elasticity linking springs (11), the other end of described spring (11) is arranged on the inner chamber of spring seat (12), described spring seat (12) is axially arranged between inner cylinder tube (5) inner chamber and piston rod (6) external diameter along piston rod (6), described oil pipe (7) one end is through piston rod (6) inner chamber and inner cylinder tube (5) inner space, the other end is through cylinder cap (14), piston rod (6) reaches outside piston rod (6) inner chamber,
The inner and outer wall of described lock piston (8) is provided with sealing guide collar (17), described piston rod (6) is also provided with one end outer wall of inner cylinder tube (5) Spielpassung and seals guide collar (17), at described outer cylinder (4), one end of cylinder cap (14) is provided with dust ring and guide collar.
2. according to claim 1 have a grade steel ball locking oil hydraulic cylinder, it is characterized in that: described inner cylinder tube (5) does not arrange spring (11), one end of spring seat (12) is connected with and supports bulb (3), described support bulb (3) is contained in ball-and-socket chassis (2), described ball-and-socket chassis (2) and ball-and-socket platen (1) will support bulb (3) by screw thread and fix, and described support bulb (3) is provided with seal ring.
3. according to claim 2 have a grade steel ball locking oil hydraulic cylinder, it is characterized in that: described ball-and-socket chassis (2) can be rotated along support bulb (3).
4. according to claim 1 and 2 have a grade steel ball locking oil hydraulic cylinder, it is characterized in that: at described oil pipe (7), cylinder cap (14), piston rod (6) one end reached outside piston rod (6) inner chamber are provided with joint (16).
5. according to claim 1 and 2 have a grade steel ball locking oil hydraulic cylinder, it is characterized in that: be axially provided with back-up ring (13) along inner cylinder tube (5) between described spring seat (12) and inner cylinder tube (5).
6. according to claim 1 and 2 have a grade steel ball locking oil hydraulic cylinder, it is characterized in that: the multiple tracks radial groove of described outer cylinder (4) inwall is that equi-spaced apart is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124212.0A CN103899592B (en) | 2014-03-31 | 2014-03-31 | There is a grade steel ball locking oil hydraulic cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124212.0A CN103899592B (en) | 2014-03-31 | 2014-03-31 | There is a grade steel ball locking oil hydraulic cylinder |
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| CN103899592A CN103899592A (en) | 2014-07-02 |
| CN103899592B true CN103899592B (en) | 2015-11-25 |
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| CN105986730B (en) * | 2015-02-13 | 2017-11-17 | 宁波欧适节能科技有限公司 | A kind of pneumatics performs device with automatic locking function |
| RU2622684C1 (en) * | 2016-04-28 | 2017-06-19 | АКЦИОНЕРНОЕ ОБЩЕСТВО "Центральный научно-исследовательский институт автоматики и гидравлики" (АО "ЦНИИАГ") | Power hydrocylinder with mechanical fixation of the stock |
| CN107313996B (en) * | 2017-08-23 | 2023-08-11 | 山东弘宇农机股份有限公司 | Oil cylinder capable of adjusting descending speed |
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| CN112096686B (en) * | 2020-08-22 | 2022-03-22 | 无锡恒立液压气动有限公司 | Hydraulic cylinder |
| CN117125197B (en) * | 2023-09-05 | 2024-02-20 | 扬州市江都永坚有限公司 | Cable throwing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2128680A (en) * | 1982-10-08 | 1984-05-02 | Johnston Brothers | Hydraulic cylinder and piston |
| JP2003278713A (en) * | 2002-01-18 | 2003-10-02 | Shin Meiwa Ind Co Ltd | Driver |
| DE10204917B4 (en) * | 2002-02-07 | 2004-04-08 | Maschinenfabrik Bermatingen Gmbh & Co | actuator |
| CN201412409Y (en) * | 2009-06-17 | 2010-02-24 | 江苏恒立高压油缸有限公司 | Mechanical self-locking hydro cylinder |
| CN103089746A (en) * | 2013-01-23 | 2013-05-08 | 南宁燎旺车灯有限责任公司 | Intelligent mechanical self-locking hydraulic device |
| CN203847468U (en) * | 2014-03-31 | 2014-09-24 | 长治清华机械厂 | Stepped steel ball locking hydraulic cylinder |
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2014
- 2014-03-31 CN CN201410124212.0A patent/CN103899592B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2128680A (en) * | 1982-10-08 | 1984-05-02 | Johnston Brothers | Hydraulic cylinder and piston |
| JP2003278713A (en) * | 2002-01-18 | 2003-10-02 | Shin Meiwa Ind Co Ltd | Driver |
| DE10204917B4 (en) * | 2002-02-07 | 2004-04-08 | Maschinenfabrik Bermatingen Gmbh & Co | actuator |
| CN201412409Y (en) * | 2009-06-17 | 2010-02-24 | 江苏恒立高压油缸有限公司 | Mechanical self-locking hydro cylinder |
| CN103089746A (en) * | 2013-01-23 | 2013-05-08 | 南宁燎旺车灯有限责任公司 | Intelligent mechanical self-locking hydraulic device |
| CN203847468U (en) * | 2014-03-31 | 2014-09-24 | 长治清华机械厂 | Stepped steel ball locking hydraulic cylinder |
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| CN103899592A (en) | 2014-07-02 |
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Address after: No. 6 mailbox of Changzhi City, Shanxi Province, Shanxi Co-patentee after: China Academy of Launch Vehicle Technology Patentee after: Shanxi spaceflight Qinghua Equipment Co., Ltd. Address before: No. 6 mailbox of Changzhi City, Shanxi Province, Shanxi Co-patentee before: China Academy of Launch Vehicle Technology Patentee before: Qinghua Machinery Plant, Changzhi |