CN104454782B - Mechanical interlocking support oil cylinder - Google Patents
Mechanical interlocking support oil cylinder Download PDFInfo
- Publication number
- CN104454782B CN104454782B CN201410659206.5A CN201410659206A CN104454782B CN 104454782 B CN104454782 B CN 104454782B CN 201410659206 A CN201410659206 A CN 201410659206A CN 104454782 B CN104454782 B CN 104454782B
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- CN
- China
- Prior art keywords
- outer cylinder
- slider
- sheath
- cylinder sheath
- hydraulic fluid
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of mechanical interlocking support oil cylinder, it sets up outer cylinder sheath, interior fairlead, front-slider, several locking sliding block, outer guide sleeve, rear slider and block circumferentially arranged on the basis of existing support oil cylinder, in the outer cylinder sheath in front-slider front, it is provided with the locking hydraulic fluid port communicated with its inner chamber, in the outer cylinder sheath between block with rear slider, is provided with the unblock hydraulic fluid port communicated with its inner chamber；The present invention promotes locking sliding block to lock respectively by front-slider and rear slider or unclamps the inner cylinder tube of support oil cylinder, has that structure is relatively simple, coupling mechanism force big, the advantage of good reliability, and does not affect the properly functioning of support oil cylinder, easy to use.
Description
Technical field
The present invention relates to the support oil cylinder of a kind of band mechanical interlocking.
Background technology
Support oil cylinder in the engineering machinery such as crane the most often supports bigger weight, if in use occurring that cylinder barrel ruptures or during the accident such as hydraulic oil leakage, is easy for causing relatively major break down, so oil cylinder must install locking device additional；Existing locking device many employings Hydraulic Elements, not only structure is complex, and coupling mechanism force is inadequate, and reliability is poor, and its safety cannot ensure, or affects the properly functioning of support oil cylinder, uses inconvenience.
Summary of the invention
It is an object of the invention to for deficiencies of the prior art, it is provided that a kind of mechanical interlocking support oil cylinder, it has, and structure is relatively simple, coupling mechanism force big, the advantage of good reliability, and does not affect the properly functioning of support oil cylinder, easy to use.
nullFor reaching above-mentioned purpose，The mechanical interlocking support oil cylinder of the present invention，Including the cylinder head being connected and inner cylinder tube、The fairlead being located in inner cylinder tube、Piston rod with piston，Piston rod slide through fairlead，Piston rod is provided with endoporus，Front sealing plate and rear sealing plate it is installed with in piston rod，Rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port it is provided with on rear sealing plate，Before rodless cavity hydraulic fluid port is by being fixed on、Central canal on rear sealing plate is connected with piston ante-chamber，Rod chamber hydraulic fluid port is connected with piston back cavity by the endoporus of piston rod and the connecting hole of several radial direction，It is characterized in that be spaced outside inner cylinder tube is provided with outer cylinder sheath，The front end of outer cylinder sheath couples with cylinder head，The rear end of outer cylinder sheath couples with outer cylinder，Interior fairlead it is provided with in outer cylinder sheath、Front-slider、Several locking sliding blocks circumferentially arranged、Outer guide sleeve、Rear slider and block，Interior fairlead connects firmly with cylinder head，What front-slider slided is located between outer cylinder sheath and interior fairlead，The locking hydraulic fluid port communicated with its inner chamber it is provided with in the outer cylinder sheath in front-slider front，Outer guide sleeve is fixedly arranged in outer cylinder sheath，What locking sliding block all slided is located between outer guide sleeve and inner cylinder tube，Before the inwall of each locking sliding block is provided with、Rear cone section，The tapering of its inner cone section is more than rear cone section，Interior fairlead is provided with the tapering coordinated with inner cone section，Inner cylinder tube is provided with the tapering coordinated with rear cone section，Outer guide sleeve inwall is provided with, with each locking sliding block outer wall, the cone section matched，After all cone Duan Junqian height low，Rear slider is located at locking sliding block rear，It is provided with steam vent in outer cylinder sheath between rear slider and locking sliding block，Rear slider and inner cylinder tube are that gap is arranged，Rear slider is provided with step，The lower surface of the block being fixed in outer cylinder sheath is located on this step，It is equipped with sealing ring in the lower surface of the rear slider excircle adjacent with outer cylinder sheath inwall and block，The unblock hydraulic fluid port communicated with its inner chamber it is provided with in outer cylinder sheath between block with rear slider.
After the inner cylinder tube of the present invention stretches out or retracts, to locking hydraulic fluid port fuel feeding, hydraulic oil moves after promoting front-slider and all locking sliding blocks, outer guide sleeve inwall inwardly extrudes all locking sliding blocks by cone section, locking sliding block shrinks locking inner cylinder tube, the two tapering matched can realize bigger coupling mechanism force, good reliability；When unlocking hydraulic fluid port oil-feed, hydraulic oil enters rear slider, oil pocket between block and outer cylinder sheath, promote rear slider and the reach of all locking sliding blocks, interior fairlead will be supportted outside all locking sliding blocks by the tapering coordinated with inner cone section, the conical surface that locking sliding block matches with inner cylinder tube separates, realizing unlocking, inner cylinder tube can move freely；The locking device of the present invention does not use Hydraulic Elements, and structure is relatively simple, and does not affect the properly functioning of support oil cylinder, easy to use；
As a further improvement on the present invention, the wire ring that described outer guide sleeve is located in outer cylinder sheath by the shoulder fastened with outer cylinder sheath inwall and rear thereof is fixedly arranged in outer cylinder sheath；Location is reliable and is easily installed；
As a further improvement on the present invention, described block is fixedly arranged in outer cylinder sheath by embedding the bulge loop between outer cylinder sheath inboard wall groove and outer cylinder front end face；Easy for installation；
As a further improvement on the present invention, the inside and outside circumference of front-slider is equipped with sealing ring；Sealing can be improved；
In sum, the present invention has that structure is relatively simple, coupling mechanism force big, the advantage of good reliability, and does not affect the properly functioning of support oil cylinder, easy to use.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment of the present invention.
Fig. 2 is the front view of locking sliding block in Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the front view of interior fairlead in Fig. 1.
Fig. 5 is the left view of Fig. 4.
Detailed description of the invention
The present invention is further detailed explanation below in conjunction with the accompanying drawings.
nullAs shown in Figures 1 to 5，This mechanical interlocking support oil cylinder，Including the cylinder head 1 being weldingly connected and inner cylinder tube 2、The fairlead 3 being located in inner cylinder tube 2 by wire ring 4、Piston rod 6 with piston 5，Piston rod 6 slide through fairlead 3，Piston rod 6 is provided with endoporus，In piston rod 6, welding is installed with front sealing plate 7 and rear sealing plate 8，Rear sealing plate 8 is provided with rodless cavity hydraulic fluid port 9 and rod chamber hydraulic fluid port 10，Rodless cavity hydraulic fluid port 9 is fixed on front sealing plate 7 by welding and is connected with piston ante-chamber with the central canal 11 on rear sealing plate 8，Rod chamber hydraulic fluid port 9 is connected with piston back cavity by the endoporus of piston rod and the connecting hole 12 of several radial direction，Outside inner cylinder tube 2, interval is provided with outer cylinder sheath 13，The front end of outer cylinder sheath 13 and cylinder head 1 pass through thread connection，The rear end of outer cylinder sheath 13 and outer cylinder 15 pass through bolt-connection，Interior fairlead 16 it is provided with in outer cylinder sheath 13、Front-slider 17、The locking sliding block 18 of four arrangements the most uniform、Outer guide sleeve 19、Rear slider 20 and block 21，Interior fairlead 16 is connected firmly by bolt 22 with cylinder head 1，What front-slider 17 slided is located between outer cylinder sheath 13 and interior fairlead 16，In front-slider 17、Sealing ring 23 it is equipped with on excircle，The locking hydraulic fluid port 24 communicated with its inner chamber it is provided with in the outer cylinder sheath 13 in front-slider 17 front，The wire ring 27 that outer guide sleeve 19 is located in outer cylinder sheath 13 by the shoulder 19a fastened with outer cylinder sheath inwall and rear thereof is fixedly arranged in outer cylinder sheath 13，What all locking sliding blocks 18 slided is located between outer guide sleeve 19 and inner cylinder tube 2，Four circumferentially spaced settings of locking sliding block 18，The inwall of each locking sliding block 18 is provided with inner cone section 18a and rear cone section 18b，The tapering of its inner cone section 18a is more than rear cone section 18b，Interior fairlead 16 is provided with the tapering coordinated with inner cone section 18a，Interior fairlead 16 is fixedly connected with axial four piece dividing plate 33，In four pieces of dividing plates 33 gap between adjacent two locking sliding blocks 18，Can locking sliding block 18 be carried out axially directed，Inner cylinder tube 2 is provided with the tapering coordinated with rear cone section 18b，Outer guide sleeve 19 inwall is provided with, with all locking sliding block 18 outer walls, the cone section matched，After all cone Duan Junqian height low，Rear slider 20 is located at locking sliding block 18 rear，It is provided with steam vent 28 in outer cylinder sheath 13 between rear slider 20 and locking sliding block 18，Rear slider 20 and inner cylinder tube 2 are arranged in gap，Rear slider 20 is provided with step，Block 21 is fixedly arranged in outer cylinder sheath 13 by embedding the bulge loop between outer cylinder sheath inboard wall groove and outer cylinder 15 front end face，The lower surface of block 21 is located on this step，It is provided with sealing ring 29 at rear slider 20 excircle adjacent with outer cylinder sheath 13 inwall，It is equipped with sealing ring 30 in the lower surface of block 21，The unblock hydraulic fluid port 26 communicated with its inner chamber it is provided with in outer cylinder sheath 13 between block 21 with rear slider 20.
Rodless cavity hydraulic fluid port 9 or rod chamber hydraulic fluid port 10 fuel feeding are controlled by stretching out or retracting of inner cylinder tube 2 by main hydraulic system；By controlling hydraulic system to locking hydraulic fluid port 24 fuel feeding, hydraulic oil moves after promoting front-slider 17 and four locking sliding blocks 18, outer guide sleeve 19 inwall inwardly extrudes locking sliding block 18 by cone section, four locking sliding blocks 18 shrink cone section 18b locking inner cylinder tube 2 thereafter, the two tapering matched can realize bigger coupling mechanism force, four pieces of dividing plates 33 make four locking sliding blocks 18 uniformly lock inner cylinder tube 2, good reliability；When controlling hydraulic system to when unlocking hydraulic fluid port 26 oil-feed, hydraulic oil enters rear slider 20, oil pocket between block 21 and outer cylinder sheath 13, rear slider 20 and four locking sliding blocks 18 are promoted to move forward, interior fairlead 16 is supportted outer for locking sliding block 18 by the tapering coordinated with inner cone section 18a, the conical surface that rear cone section 18b matches with inner cylinder tube 2 separates, realizing unlocking, inner cylinder tube 2 can move freely；Control hydraulic system pressure less than main hydraulic system pressure.The locking device of the present invention does not use Hydraulic Elements, and structure is relatively simple, and does not affect the properly functioning of support oil cylinder, easy to use.
Claims (4)
- null1. a mechanical interlocking support oil cylinder，Including the cylinder head being connected and inner cylinder tube、The fairlead being located in inner cylinder tube、Piston rod with piston，Piston rod slide through fairlead，Piston rod is provided with endoporus，Front sealing plate and rear sealing plate it is installed with in piston rod，Rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port it is provided with on rear sealing plate，Before rodless cavity hydraulic fluid port is by being fixed on、Central canal on rear sealing plate is connected with piston ante-chamber，Rod chamber hydraulic fluid port is connected with piston back cavity by the endoporus of piston rod and the connecting hole of several radial direction，It is characterized in that be spaced outside inner cylinder tube is provided with outer cylinder sheath，The front end of outer cylinder sheath couples with cylinder head，The rear end of outer cylinder sheath couples with outer cylinder，Interior fairlead it is provided with in outer cylinder sheath、Front-slider、Several locking sliding blocks circumferentially arranged、Outer guide sleeve、Rear slider and block，Interior fairlead connects firmly with cylinder head，What front-slider slided is located between outer cylinder sheath and interior fairlead，The locking hydraulic fluid port communicated with its inner chamber it is provided with in the outer cylinder sheath in front-slider front，Outer guide sleeve is fixedly arranged in outer cylinder sheath，What locking sliding block all slided is located between outer guide sleeve and inner cylinder tube，Before the inwall of each locking sliding block is provided with、Rear cone section，The tapering of its inner cone section is more than rear cone section，Interior fairlead is provided with the tapering coordinated with inner cone section，Inner cylinder tube is provided with the tapering coordinated with rear cone section，Outer guide sleeve inwall is provided with, with each locking sliding block outer wall, the cone section matched，After all cone Duan Junqian height low，Rear slider is located at locking sliding block rear，It is provided with steam vent in outer cylinder sheath between rear slider and locking sliding block，Rear slider and inner cylinder tube are that gap is arranged，Rear slider is provided with step，The lower surface of the block being fixed in outer cylinder sheath is located on this step，It is equipped with sealing ring in the lower surface of the rear slider excircle adjacent with outer cylinder sheath inwall and block，The unblock hydraulic fluid port communicated with its inner chamber it is provided with in outer cylinder sheath between block with rear slider.
- 2. mechanical interlocking support oil cylinder as claimed in claim 1, it is characterised in that the wire ring that described outer guide sleeve is located in outer cylinder sheath by the shoulder fastened with outer cylinder sheath inwall and rear thereof is fixedly arranged in outer cylinder sheath.
- 3. profit requires the mechanical interlocking support oil cylinder described in 1, it is characterised in that described block is fixedly arranged in outer cylinder sheath by embedding the bulge loop between outer cylinder sheath inboard wall groove and outer cylinder front end face.
- 4. mechanical interlocking support oil cylinder as claimed in claim 1, it is characterised in that be equipped with sealing ring on the inside and outside circumference of front-slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659206.5A CN104454782B (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659206.5A CN104454782B (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454782A CN104454782A (en) | 2015-03-25 |
| CN104454782B true CN104454782B (en) | 2016-09-28 |
Family
ID=52901357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410659206.5A Active CN104454782B (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454782B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605028B (en) * | 2016-02-02 | 2017-06-16 | 山西平阳重工机械有限责任公司 | Super-pressure titanium alloy drawing oil cylinder |
| CN106855072A (en) * | 2017-02-21 | 2017-06-16 | 泉州市海恩德机电科技发展有限公司 | Hydraulic radial locking device |
| CN109578377A (en) * | 2019-01-30 | 2019-04-05 | 华中科技大学无锡研究院 | The hydraulic cylinder of the two-way dual mechanical locking in any position can be achieved |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH663826A5 (en) * | 1987-02-26 | 1988-01-15 | Bieri Ag Liebefeld H | PRESSURE FLUID TO BE LOCKED, LOCKING CYLINDER PISTON UNIT. |
| DE3811225C2 (en) * | 1988-04-02 | 1996-07-11 | Sitema | Hydraulic support device for vehicles |
| CN201228688Y (en) * | 2008-06-05 | 2009-04-29 | 北京昌平液压机械厂有限公司 | Self locking oil cylinder |
| CN202520703U (en) * | 2011-08-18 | 2012-11-07 | 杜雨轩 | Self-locking hydraulic cylinder with prismatic-table piston rod |
| CN102628463A (en) * | 2012-04-03 | 2012-08-08 | 无锡亿利大机械有限公司 | Mechanical self-locking hydraulic cylinder |
| CN204284080U (en) * | 2014-11-19 | 2015-04-22 | 泸州市巨力液压有限公司 | Mechanical interlocking support oil cylinder |
-
2014
- 2014-11-19 CN CN201410659206.5A patent/CN104454782B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104454782A (en) | 2015-03-25 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |