CN104454761A - Double-acting single-piston-rod hydraulic cylinder - Google Patents
Double-acting single-piston-rod hydraulic cylinder Download PDFInfo
- Publication number
- CN104454761A CN104454761A CN201410715260.7A CN201410715260A CN104454761A CN 104454761 A CN104454761 A CN 104454761A CN 201410715260 A CN201410715260 A CN 201410715260A CN 104454761 A CN104454761 A CN 104454761A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- rod
- hydraulic cylinder
- cylinder barrel
- 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.)
- Pending
Links
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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap sealings
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a double-acting single-piston-rod hydraulic cylinder. The hydraulic cylinder comprises a cylinder bottom, a cylinder barrel, a cylinder cover and guiding sleeve, a piston and a piston rod. One end of the cylinder barrel and the cylinder bottom are welded, the other end of the cylinder barrel and the cylinder cover and guiding sleeve are fixed through a first clamping key, a sleeve and a first spring collar, a first oil port and a second oil port are formed in the two ends of the cylinder barrel, the cylinder barrel is internally provided with the piston and the piston rod, and the piston and the piston rod are connected through a second clamping key, a clamping key cap and a second spring collar. The double-acting single-piston-rod hydraulic cylinder is simple and reasonable in structure, the piston rod cannot deviate from the center through the long guiding sleeve, an outer hole of the guiding sleeve is sealed through an O-shaped sealing ring, and a Y-shaped sealing ring and a dustproof ring are adopted in an inner hole of the guiding sleeve to prevent oil from leaking and prevent dust from being brought into the cylinder. The cylinder and a pin hole in the end of the rod are connected with the outside, the pin hole is internally provided with a nylon bush for resisting abrasion, and the service life of the hydraulic cylinder is prolonged.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, specifically, relate to a kind of two-action single-rod hydraulic cylinder.
Background technique
Two-action single-rod hydraulic cylinder Application comparison in hydraulic equipment, engineering machinery is extensive.But be subject to environmental attack and external force direct collision when single two-way ram bar hydraulic cylinder piston rod stretches out cylinder barrel, cause piston rod surface not only, oil sealing damages, the faults such as leakage of oil and piston rods bend fracture.At present, the two-action single-rod hydraulic cylinder that existing hydraulic equipment, engineering machinery use, do not fully take into account the Environmental Conditions factor of single-piston rod double-acting hydraulic cylinder, therefore oil hydraulic cylinder rate of fault is higher.
Summary of the invention
The present invention, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of two-action single-rod hydraulic cylinder, can solve the problems of the technologies described above completely.
The technological scheme solved the problems of the technologies described above is as follows:
Two-action single-rod hydraulic cylinder, comprise cylinder bottom, cylinder barrel, cylinder cap hold concurrently guide sleeve, piston and piston rod, it is characterized in that, described cylinder barrel one end is welded with cylinder bottom, the other end and cylinder cap guide sleeve of holding concurrently is fixed by the first card key, cover and the first check ring, described cylinder barrel two ends are provided with the first hydraulic fluid port and the second hydraulic fluid port, and cylinder barrel inside is provided with piston and piston rod, and described piston is connected by the second card key, card key cap and the second check ring with piston rod.
Described piston and the joint of cylinder barrel all adopt Y shape polyurethane sealing ring to seal.
Described piston rod and the endoporus of piston are sealed by O-ring seals.
The hold concurrently exit orifice of guide sleeve of described cylinder cap is sealed by O-ring seals.
The present invention is simple and reasonable, and longer guide sleeve can ensure that piston rod does not depart from center, and guide sleeve exit orifice is sealed by O-ring seals, and its endoporus then prevents oil from leaking outside respectively by y-shaped ring and dust ring and dust is brought in cylinder.Cylinder is connected with the external world with rod end pin-and-hole, has nylon lining wear-resistant, extend the working life of oil hydraulic cylinder in pin-and-hole.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention;
In figure: 3 is dust ring, 4 be the first check ring, 17 is the second check ring, and 5 is cover, 6 is the first card key, and 15 is the second card key, and 7,14 is O-ring seals, 8,12 is y-shaped ring, and 9 to hold concurrently guide sleeve for cylinder cap, and 10 is cylinder barrel, 11 is piston, and 13 is wear ring, and 16 is card key cap, 18 is piston rod, and 19 is lining, and 20 is cylinder bottom, A is the first hydraulic fluid port, and B is the second hydraulic fluid port.
Embodiment
A kind of two-action single-rod hydraulic cylinder as shown in Figure 1, comprise cylinder bottom 20, cylinder barrel 10, cylinder cap hold concurrently guide sleeve 9, piston 11 and piston rod 18, described cylinder barrel 10 one end is welded with cylinder bottom 20, the other end and cylinder cap hold concurrently guide sleeve 9 by the first card key 6, overlap 5 and first check ring 4 fix, described cylinder barrel 10 two ends are provided with the first hydraulic fluid port A and the second hydraulic fluid port B, cylinder barrel 10 inside is provided with piston 11 and piston rod 18, and described piston 11 is connected by the second card key 15, card key cap 16 and check ring 17 with piston rod 18.
Described piston 11 all adopts Y shape polyurethane sealing ring 12 to seal with the joint of cylinder barrel 10.Because piston 11 and cylinder holes have certain interval, adopt wear ring 13 centering pilot be made up of nylon 1010.
Described piston rod 18 and the endoporus of piston 11 are sealed by O-ring seals 14.Longer guide sleeve 9 can ensure that piston rod does not depart from center, and cylinder cap guide sleeve exit orifice of holding concurrently is sealed by O-ring seals 7, and its endoporus then prevents oil from leaking outside respectively by y-shaped ring 8 and dust ring 3 and dust is brought in cylinder.Cylinder is connected with the external world with rod end pin-and-hole, has nylon lining 19 wear-resistant in pin-and-hole.
Claims (4)
1. two-action single-rod hydraulic cylinder, comprise cylinder bottom, cylinder barrel, cylinder cap hold concurrently guide sleeve, piston and piston rod, it is characterized in that, described cylinder barrel one end is welded with cylinder bottom, the other end and cylinder cap guide sleeve of holding concurrently is fixed by the first card key, cover and the first check ring, described cylinder barrel two ends are provided with the first hydraulic fluid port and the second hydraulic fluid port, and cylinder barrel inside is provided with piston and piston rod, and described piston is connected by the second card key, card key cap and the second check ring with piston rod.
2. two-action single-rod hydraulic cylinder according to claim 1, is characterized in that, described piston and the joint of cylinder barrel all adopt Y shape polyurethane sealing ring to seal.
3. two-action single-rod hydraulic cylinder according to claim 1, is characterized in that, described piston rod and the endoporus of piston are sealed by O-ring seals.
4. two-action single-rod hydraulic cylinder according to claim 1, is characterized in that, the hold concurrently exit orifice of guide sleeve of described cylinder cap is sealed by O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715260.7A CN104454761A (en) | 2014-11-29 | 2014-11-29 | Double-acting single-piston-rod hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410715260.7A CN104454761A (en) | 2014-11-29 | 2014-11-29 | Double-acting single-piston-rod hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454761A true CN104454761A (en) | 2015-03-25 |
Family
ID=52901336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410715260.7A Pending CN104454761A (en) | 2014-11-29 | 2014-11-29 | Double-acting single-piston-rod hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454761A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443492A (en) * | 2015-12-11 | 2016-03-30 | 苏州源硕精密模具有限公司 | Single-piston-rod hydraulic cylinder |
| CN107035742A (en) * | 2017-06-21 | 2017-08-11 | 张多艳 | A kind of novel hydraulic cylinder |
-
2014
- 2014-11-29 CN CN201410715260.7A patent/CN104454761A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443492A (en) * | 2015-12-11 | 2016-03-30 | 苏州源硕精密模具有限公司 | Single-piston-rod hydraulic cylinder |
| CN107035742A (en) * | 2017-06-21 | 2017-08-11 | 张多艳 | A kind of novel hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
|
| WD01 | Invention patent application deemed withdrawn after publication |