CN202418089U - Hydraulic support cylinder - Google Patents
Hydraulic support cylinder Download PDFInfo
- Publication number
- CN202418089U CN202418089U CN2012200037267U CN201220003726U CN202418089U CN 202418089 U CN202418089 U CN 202418089U CN 2012200037267 U CN2012200037267 U CN 2012200037267U CN 201220003726 U CN201220003726 U CN 201220003726U CN 202418089 U CN202418089 U CN 202418089U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder
- base
- cavity
- guide sleeve
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a hydraulic support cylinder composed of a cylinder body, a piston rod and a base. The base is provided with an oil hole I which is communicated with an inner cavity of the cylinder body, a guide sleeve is arranged at the cavity opening position of the cylinder, a groove is arranged in the guide sleeve, a locking handle is arranged on the piston rod, a slope is arranged under the locking handle and abuts against the groove of the guide sleeve, an auxiliary cavity is arranged in the piston rod, a seal cover and a press cover are arranged at the auxiliary cavity opening position, a small piston rod provided with a central through hole is arranged in the auxiliary cavity, the bottom of the small piston rod dents and is sleeved at a protruding position of the base, an auxiliary piston is arranged at the end portion of the small piston rod and divides the auxiliary cavity into a rod cavity and a rodless cavity, one end of the central through hole of the small piston rod is communicated with an oil hole II at the protruding position of the base, the other end of the through hole is communicated with a side oil hole and the rod cavity of the auxiliary cavity through the side oil hole. The hydraulic support cylinder has good locking performance, continuous oil supply is not needed for the cylinder, and self-shrinkage of the cylinder is avoided.
Description
Technical field
The utility model relates to a kind of hydraulic ram cylinder, belongs to the hydraulics field.
Background technique
On present many engineering machine vehicles, all use the supporting leg cylinder, just when machine works, need the supporting leg cylinder to prop up car again and work, carry out stable Job Operations to guarantee machine.The quality of supporting leg cylinder directly influences the proper functioning of complete machine, and present most supporting leg cylinder is all locked with hydraulic lock, but oil cylinder itself also has a certain amount of internal leakage, so just needs machine when work, and hydraulic system needs oil supply oil supply cylinder always.Even like this, during most of machine works bigger vibration is arranged all, can cause the hydraulic lock leakage of oil and vibrate when big.And the closed of hydraulic lock is bad, occurs the phenomenon that piston rod shrinks voluntarily easily, and causes machine to work.
The model utility content
The purpose of the utility model provides a kind of hydraulic ram cylinder, has good locking property, need not to continue fuel feeding to oil hydraulic cylinder, and oil cylinder can not produce shrinkage phenomenon voluntarily yet.
To achieve these goals, the technological scheme of the utility model is: a kind of hydraulic ram cylinder comprises cylinder body, piston rod, base; Base is provided with the oilhole I, and with the intracavity inter-connection of cylinder body, described cylinder body accent place is provided with guide sleeve; Groove is set in the guide sleeve; On the described piston rod set lever is set, under the set lever inclined-plane is set, be tight against groove place at guide sleeve; Secondary chamber is set in the described piston rod, and described secondary accent place is provided with sealing cover, gland, is provided with the small piston rod of central through bore in the described secondary chamber; The small piston rod bottom notch is enclosed within the high spot of base, and the small piston rod end is provided with sub-piston; Secondary chamber is divided into rod chamber and rodless cavity; Described small piston rod central through bore one end is connected with the oilhole II at pedestal lobe place, and an end communicates with the side oilhole, is connected with the rod chamber in secondary chamber through the side oilhole.
Further, bottom, described secondary chamber is provided with shock absorber, offsets with the sub-piston that is connected on the small piston rod.
The beneficial effect of the utility model is: the hydraulic ram cylinder of the utility model does not just need hydraulic system oil supply oil supply cylinder again behind mechanical interlocking, lets out the contraction that yet can not influence piston rod even oil cylinder has in slight.No matter it is how abominable that the working surface operating mode of operation has, oil cylinder does not have the phenomenon of shrinking voluntarily yet.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model is done explanation further.
As shown in Figure 1, the hydraulic ram cylinder of the utility model comprises cylinder body 1, piston rod 2, base 3; Base 3 is provided with the oilhole I, and with the intracavity inter-connection of cylinder body 1, described cylinder body 1 accent place is provided with guide sleeve 4; In the guide sleeve 4 groove is set; On the described piston rod 2 set lever 5 is set, set lever is provided with the inclined-plane 5 times, is tight against the groove place at guide sleeve 4; In the described piston rod 2 secondary chamber is set, described secondary accent place is provided with sealing cover 6, gland 7, is provided with the small piston rod 8 of central through bore in the described secondary chamber; Small piston rod 8 bottom notch are enclosed within the high spot of base 3, and small piston rod 8 ends are provided with sub-piston 9; Secondary chamber is divided into rod chamber and rodless cavity; Described small piston rod 8 central through bores one end is connected with the oilhole II of base 3 high spots, and an end communicates with the side oilhole, is connected with the rod chamber in secondary chamber through the side oilhole.Bottom, described secondary chamber is provided with shock absorber 10, offsets with sub-piston 9.
The supporting leg cylinder of the utility model is installed on the engineering machine vehicle, when engineering truck need be standing, and the hydraulic fluid port I oil-feed of base 3, oil gets in the inner chamber of cylinder body 1; Piston rod 2 ejects, the hydraulic fluid port II oil return of base 3, and during piston rod 2 arrival desired positions, twistlock handle 5; Guide sleeve 4 in holding out against cylinder body, at this moment piston rod 2 has been in locking state, and engineering truck is promptly accomplished and is standing, and hydraulic system can stop to supporting leg cylinder and cylinder body fuel feeding; Machine can be started working, and when needing the mobile engineering machinery car after hours, lets the hydraulic fluid port I advance little oil more earlier, and piston rod 2 comes out a little; Manually be screwed to set lever 5 head of piston rod 2, hydraulic fluid port II oil-feed then, the oil return of hydraulic fluid port I this moment again; Piston rod 2 shrinks back, at this moment, and removable engineering machine vehicle.
The hydraulic ram cylinder of the utility model does not just need hydraulic system oil supply oil supply cylinder again behind mechanical interlocking, let out the contraction that yet can not influence piston rod even oil cylinder has in slight.No matter it is how abominable that the working surface operating mode of operation has, oil cylinder does not have the phenomenon of shrinking voluntarily yet.
The technological scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technological scheme of the utility model all falls within the protection domain of the utility model.
Claims (2)
1. a hydraulic ram cylinder comprises cylinder body, piston rod, base, and base is provided with the oilhole I; Intracavity inter-connection with cylinder body; It is characterized in that: described cylinder body accent place is provided with guide sleeve, and groove is set in the guide sleeve, on the described piston rod set lever is set; Under the set lever inclined-plane is set, is tight against groove place at guide sleeve; Secondary chamber is set in the described piston rod, and described secondary accent place is provided with sealing cover, gland, is provided with the small piston rod of central through bore in the described secondary chamber; The small piston rod bottom notch is enclosed within the high spot of base, and the small piston rod end is provided with sub-piston; Secondary chamber is divided into rod chamber and rodless cavity; Described small piston rod central through bore one end is connected with the oilhole II at pedestal lobe place, and an end communicates with the side oilhole, is connected with the rod chamber in secondary chamber through the side oilhole.
2. hydraulic ram cylinder according to claim 1 is characterized in that: bottom, described secondary chamber is provided with shock absorber, offsets with the sub-piston that is connected on the small piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200037267U CN202418089U (en) | 2012-01-06 | 2012-01-06 | Hydraulic support cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200037267U CN202418089U (en) | 2012-01-06 | 2012-01-06 | Hydraulic support cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418089U true CN202418089U (en) | 2012-09-05 |
Family
ID=46742859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200037267U Expired - Fee Related CN202418089U (en) | 2012-01-06 | 2012-01-06 | Hydraulic support cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418089U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154070A (en) * | 2014-08-22 | 2014-11-19 | 实用动力(中国)工业有限公司 | Double-acting nut-locking hydrocylinder |
| CN104817043A (en) * | 2015-04-09 | 2015-08-05 | 山东建筑大学 | Throttle slow descending cylinder of hand operated hydraulic fork-lift |
| CN105257627A (en) * | 2015-11-25 | 2016-01-20 | 湖南特力液压有限公司 | Hydraulic cylinder and engineering machinery |
-
2012
- 2012-01-06 CN CN2012200037267U patent/CN202418089U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154070A (en) * | 2014-08-22 | 2014-11-19 | 实用动力(中国)工业有限公司 | Double-acting nut-locking hydrocylinder |
| CN104817043A (en) * | 2015-04-09 | 2015-08-05 | 山东建筑大学 | Throttle slow descending cylinder of hand operated hydraulic fork-lift |
| CN104817043B (en) * | 2015-04-09 | 2017-01-25 | 山东建筑大学 | Throttle slow descending cylinder of hand operated hydraulic fork-lift |
| CN105257627A (en) * | 2015-11-25 | 2016-01-20 | 湖南特力液压有限公司 | Hydraulic cylinder and engineering machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202418089U (en) | Hydraulic support cylinder | |
| CN201763722U (en) | Double-acting multilevel hydraulic cylinder | |
| CN102133656A (en) | Milling fixture mechanism for crankcase-like workpieces | |
| CN202547876U (en) | Reverse self-locking compression device | |
| CN104358731A (en) | Hydraulic cylinder for locking hydraulic clamp | |
| CN201190704Y (en) | Inside and outside double-drum type hydraulic reinforcement cylinder | |
| CN104196813A (en) | Fast die closingoil cylinder used for high-speed die-casting machine | |
| CN206522298U (en) | A kind of cylinder | |
| CN201705491U (en) | Piston ring structure | |
| CN203756636U (en) | Hydraulic cylinder of closed system type grab bucket | |
| CN203962545U (en) | A kind of quick die cylinder for high speed die casting machine | |
| CN201401387Y (en) | Oil cylinder piston | |
| CN101555849A (en) | Deformation compensation technology of high-pressure fuel pump of diesel engine | |
| CN202387731U (en) | Anti-rotating device | |
| CN205365575U (en) | Parallel two -chamber brake master cylinder | |
| CN204805208U (en) | A novel hydro -cylinder for economizer system | |
| CN219509937U (en) | Hydraulic cylinder buffer mechanism | |
| CN202811637U (en) | High-performance hydraulic cylinder with oil distribution device | |
| CN203441859U (en) | Oil cylinder of steel pushing machine in circulation oil tank structure | |
| CN214837490U (en) | High-pressure oil cylinder body structure | |
| CN202579718U (en) | Air cylinder structure of clutch booster | |
| CN203892293U (en) | Main oil cylinder of wallpaper hydraulic equipment | |
| CN212250692U (en) | Self-locking hydraulic oil cylinder in cylinder | |
| CN212705337U (en) | Press mounting machine for oil cylinder | |
| CN217814930U (en) | Hydraulic pressure handle oil outlet seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20160106 |