CN204284080U - Mechanical interlocking support oil cylinder - Google Patents
Mechanical interlocking support oil cylinder Download PDFInfo
- Publication number
- CN204284080U CN204284080U CN201420693185.4U CN201420693185U CN204284080U CN 204284080 U CN204284080 U CN 204284080U CN 201420693185 U CN201420693185 U CN 201420693185U CN 204284080 U CN204284080 U CN 204284080U
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- CN
- China
- Prior art keywords
- outer cylinder
- guide sleeve
- slider
- sheath
- cylinder sheath
- 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.)
- Withdrawn - After Issue
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a kind of mechanical interlocking support oil cylinder, it sets up outer cylinder sheath, interior guide sleeve, 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, be provided with the locking hydraulic fluid port communicated with its inner chamber, in the outer cylinder sheath between block with rear slider, be provided with the unblock hydraulic fluid port communicated with its inner chamber; The utility model promotes locking sliding block locking respectively by front-slider and rear slider or unclamps the inner cylinder tube of support oil cylinder, has that structure is comparatively simple, coupling mechanism force is large, the advantage of good reliability, and does not affect the normal operation of support oil cylinder, easy to use.
Description
Technical field
The utility model relates to a kind of support oil cylinder with mechanical interlocking.
Background technique
Support oil cylinder in the engineering machinery such as hoist in use often supports larger weight, if in use occur cylinder barrel break or the accident such as hydraulic oil leakage time, just easily cause comparatively major break down, so oil cylinder must install locking device additional; Existing locking device many employings hydraulic element, not only structure is comparatively complicated, and coupling mechanism force is inadequate, and reliability is poor, and its Security cannot ensure, or affects the normal operation of support oil cylinder, uses inconvenience.
Model utility content
The purpose of this utility model is for prior art above shortcomings, provides a kind of mechanical interlocking support oil cylinder, and it has, and structure is comparatively simple, coupling mechanism force is large, the advantage of good reliability, and does not affect the normal operation of support oil cylinder, easy to use.
For achieving the above object, mechanical interlocking support oil cylinder of the present utility model, comprise connected cylinder head and inner cylinder tube, be located at the guide sleeve in inner cylinder tube, with the piston rod of piston, what piston rod slided passes guide sleeve, piston rod is provided with endoporus, front sealing plate and rear sealing plate is installed with in piston rod, rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port is provided with on rear sealing plate, rodless cavity hydraulic fluid port is by before being fixed on, center tube 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 attachment hole of several radial direction, it is characterized in that being provided with outer cylinder sheath at the outer interval of inner cylinder tube, the front end of outer cylinder sheath connects with cylinder head, the rear end of outer cylinder sheath connects with outer cylinder, interior guide sleeve is provided with in outer cylinder sheath, front-slider, several locking sliding block circumferentially arranged, outer guide sleeve, rear slider and block, interior guide sleeve and cylinder head connect firmly, what front-slider slided is located between outer cylinder sheath and interior guide sleeve, the locking hydraulic fluid port communicated with its inner chamber 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 greater than rear cone section, interior guide sleeve 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 each locking sliding block outer wall the cone section matched, low after all cone Duan Junqian height, rear slider is located at locking sliding block rear, exhaust port is provided with 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 end surface being fixed on the block in outer cylinder sheath is located on this step, seal ring is equipped with in the lower end surface of the rear slider excircle adjacent with outer cylinder sheath inwall and block, the unblock hydraulic fluid port communicated with its inner chamber is provided with in outer cylinder sheath between block with rear slider.
After inner cylinder tube of the present utility model 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 larger coupling mechanism force, good reliability; When unlocking hydraulic fluid port oil-feed, hydraulic oil enters the oil pocket between rear slider, block and outer cylinder sheath, promote rear slider and the reach of all locking sliding blocks, all locking sliding blocks are supportted outward by the tapering coordinated with inner cone section by interior guide sleeve, the conical surface that locking sliding block and inner cylinder tube match is separated, realize unlocking, inner cylinder tube can move freely; Locking device of the present utility model does not adopt hydraulic element, and structure is comparatively simple, and does not affect the normal operation of support oil cylinder, easy to use;
As further improvement of the utility model, described outer guide sleeve is fixedly arranged in outer cylinder sheath by the shoulder that fastens with outer cylinder sheath inwall and the rear wire ring be located in outer cylinder sheath thereof; Locate reliable and be convenient to install;
As further improvement of the utility model, described block is fixedly arranged in outer cylinder sheath by the bulge loop embedded between outer cylinder sheath inboard wall groove and outer cylinder front-end face; Easy for installation;
As further improvement of the utility model, be circumferentially equipped with seal ring the inside and outside of front-slider; Sealing can be improved;
In sum, the utility model has that structure is comparatively simple, coupling mechanism force large, the advantage of good reliability, and does not affect the normal operation of support oil cylinder, easy to use.
Accompanying drawing explanation
Fig. 1 is the plan view of the utility model embodiment.
Fig. 2 is the plan view of locking sliding block in Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the plan view of interior guide sleeve in Fig. 1.
Fig. 5 is the left view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 5, this mechanical interlocking support oil cylinder, comprise the cylinder head 1 and inner cylinder tube 2 that are weldingly connected, the guide sleeve 3 in inner cylinder tube 2 is located at by wire ring 4, with the piston rod 6 of piston 5, what piston rod 6 slided passes guide sleeve 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 center tube 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 attachment hole 12 of several radial direction, outer cylinder sheath 13 is provided with at the outer interval of inner cylinder tube 2, front end and the cylinder head 1 of outer cylinder sheath 13 pass through scyewed joint, rear end and the outer cylinder 15 of outer cylinder sheath 13 pass through Bolt Connection, interior guide sleeve 16 is provided with in outer cylinder sheath 13, front-slider 17, the locking sliding block 18 of four circumferentially uniform arrangements, outer guide sleeve 19, rear slider 20 and block 21, interior guide sleeve 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 guide sleeve 16, in front-slider 17, excircle is equipped with seal ring 23, the locking hydraulic fluid port 24 communicated with its inner chamber is provided with in the outer cylinder sheath 13 in front-slider 17 front, outer guide sleeve 19 is fixedly arranged in outer cylinder sheath 13 by the shoulder 19a that fastens with outer cylinder sheath inwall and the rear wire ring 27 be located in outer cylinder sheath 13 thereof, what all locking sliding blocks 18 slided is located between outer guide sleeve 19 and inner cylinder tube 2, four locking sliding blocks 18 are in circumferentially interval setting, 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 greater than rear cone section 18b, interior guide sleeve 16 is provided with the tapering coordinated with inner cone section 18a, interior guide sleeve 16 is fixedly connected with four pieces of axial dividing plates 33, in four pieces of dividing plates 33 gap between adjacent two locking sliding blocks 18, can carry out axially directed to locking sliding block 18, inner cylinder tube 2 is provided with the tapering coordinated with rear cone section 18b, outer guide sleeve 19 inwall is provided with all locking sliding block 18 outer walls the cone section matched, low after all cone Duan Junqian height, rear slider 20 is located at locking sliding block 18 rear, exhaust port 28 is provided with in outer cylinder sheath 13 between rear slider 20 and locking sliding block 18, rear slider 20 is arranged in gap with inner cylinder tube 2, rear slider 20 is provided with step, block 21 is fixedly arranged in outer cylinder sheath 13 by the bulge loop embedded between outer cylinder sheath inboard wall groove and outer cylinder 15 front-end face, the lower end surface of block 21 is located on this step, seal ring 29 is provided with at rear slider 20 excircle adjacent with outer cylinder sheath 13 inwall, seal ring 30 is equipped with in the lower end surface of block 21, the unblock hydraulic fluid port 26 communicated with its inner chamber is provided with in outer cylinder sheath 13 between block 21 with rear slider 20.
Stretching out or retracting of inner cylinder tube 2 is controlled by rodless cavity hydraulic fluid port 9 or rod chamber hydraulic fluid port 10; 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 bores thereafter section 18b locking inner cylinder tube 2, the two tapering matched can realize larger coupling mechanism force, good reliability; When unlocking hydraulic fluid port 26 oil-feed, hydraulic oil enters the oil pocket between rear slider 20, block 21 and outer cylinder sheath 13, promotion rear slider 20 and four locking sliding blocks 18 move forward, interior guide sleeve 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 and inner cylinder tube 2 match is separated, realize unlocking, inner cylinder tube 2 can move freely; Locking device of the present utility model does not adopt hydraulic element, and structure is comparatively simple, and does not affect the normal operation of support oil cylinder, easy to use.
Claims (4)
1. a mechanical interlocking support oil cylinder, comprise connected cylinder head and inner cylinder tube, be located at the guide sleeve in inner cylinder tube, with the piston rod of piston, what piston rod slided passes guide sleeve, piston rod is provided with endoporus, front sealing plate and rear sealing plate is installed with in piston rod, rodless cavity hydraulic fluid port and rod chamber hydraulic fluid port is provided with on rear sealing plate, rodless cavity hydraulic fluid port is by before being fixed on, center tube 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 attachment hole of several radial direction, it is characterized in that being provided with outer cylinder sheath at the outer interval of inner cylinder tube, the front end of outer cylinder sheath connects with cylinder head, the rear end of outer cylinder sheath connects with outer cylinder, interior guide sleeve is provided with in outer cylinder sheath, front-slider, several locking sliding block circumferentially arranged, outer guide sleeve, rear slider and block, interior guide sleeve and cylinder head connect firmly, what front-slider slided is located between outer cylinder sheath and interior guide sleeve, the locking hydraulic fluid port communicated with its inner chamber 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 greater than rear cone section, interior guide sleeve 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 each locking sliding block outer wall the cone section matched, low after all cone Duan Junqian height, rear slider is located at locking sliding block rear, exhaust port is provided with 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 end surface being fixed on the block in outer cylinder sheath is located on this step, seal ring is equipped with in the lower end surface of the rear slider excircle adjacent with outer cylinder sheath inwall and block, the unblock hydraulic fluid port communicated with its inner chamber is provided with in outer cylinder sheath between block with rear slider.
2. mechanical interlocking support oil cylinder as claimed in claim 1, is characterized in that the wire ring that described outer guide sleeve is located in outer cylinder sheath by the shoulder that fastens with outer cylinder sheath inwall and rear thereof is fixedly arranged in outer cylinder sheath.
3. mechanical interlocking support oil cylinder as claimed in claim 1, is characterized in that described block is fixedly arranged in outer cylinder sheath by the bulge loop embedded between outer cylinder sheath inboard wall groove and outer cylinder front-end face.
4. mechanical interlocking support oil cylinder as claimed in claim 1, is characterized in that circumferentially being equipped with seal ring the inside and outside of front-slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693185.4U CN204284080U (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693185.4U CN204284080U (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284080U true CN204284080U (en) | 2015-04-22 |
Family
ID=52867245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693185.4U Withdrawn - After Issue CN204284080U (en) | 2014-11-19 | 2014-11-19 | Mechanical interlocking support oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454782A (en) * | 2014-11-19 | 2015-03-25 | 泸州市巨力液压有限公司 | Mechanically-locked support oil cylinder |
-
2014
- 2014-11-19 CN CN201420693185.4U patent/CN204284080U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454782A (en) * | 2014-11-19 | 2015-03-25 | 泸州市巨力液压有限公司 | Mechanically-locked support oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160928 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |