CN201916278U - Air cylinder - Google Patents
Air cylinder Download PDFInfo
- Publication number
- CN201916278U CN201916278U CN201020687154XU CN201020687154U CN201916278U CN 201916278 U CN201916278 U CN 201916278U CN 201020687154X U CN201020687154X U CN 201020687154XU CN 201020687154 U CN201020687154 U CN 201020687154U CN 201916278 U CN201916278 U CN 201916278U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- cylinder body
- guide sleeve
- air
- 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
Landscapes
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to an air cylinder, which comprises a cylinder body. An end cover is arranged at one end of the cylinder body; the end cover is provided with an air inlet; a piston rod in the cylinder body is connected with a second piston after passing through a guide sleeve; one end of the second piston is also provided with a first piston; a hydraulic oil chamber is arranged between the second piston and the first piston; the first piston is provided with a first air seal ring; the second piston is provided with an oil seal ring and a second air seal ring; an outer ring of the cylinder body is provided with at least one sound eliminator near the guide sleeve; and an inner ring of the guide sleeve is provided with at least one dust ring. In the air cylinder, a connection mode that one end of the piston rod is connected with a motor and a cylinder body end is connected with an energy accumulator is adopted, accordingly, the air seal performance of the air cylinder is reliable and excellent, the dustproof effect is good and the service life is long.
Description
Technical field
The utility model relates to a kind of cylinder.
Background technique
Existing cylinder seal performance deficiency is not suitable for long operation; Reciprocating cylinder is many need be in the ventilation of cylinder two ends, and structure is comparatively complicated.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of cylinder, can one-sidedly drive, and gas sealing ability is reliable, good dustproof effect, long service life, advantage of simple structure.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of cylinder, comprise cylinder body, end cap is installed in cylinder body one end, and end cap is provided with inlet hole, and the piston rod in the cylinder body passes guide sleeve and is connected with second piston, second piston, one end also is equipped with first piston, be provided with hydraulic fluid chamber between second piston and the first piston, first piston is provided with the first airtight seal, and second piston is provided with the oil seal circle and the second airtight seal;
The cylinder body outer ring is provided with at least one silencing apparatus near the position of guide sleeve;
The guide sleeve inner ring is provided with at least one dust ring.
Described first piston end face also is provided with one-way valve, and one-way valve is communicated with hydraulic fluid chamber.
Described silencing apparatus peripheral hardware has air-strainer.
Described silencing apparatus is two.
Described dust ring is two.
The piston rod tail also is installed on the described piston rod.
Described cylinder body is provided with lubricating cup, and lubricating cup is communicated with the inner ring of guide sleeve by the pipeline on the guide sleeve.
Described first piston end face also is provided with bleed screw, and bleed screw is communicated with hydraulic fluid chamber by pipeline.
A kind of cylinder that the utility model provides adopts piston rod termination motor, the Placement of cylinder body termination accumulator, reliable and good, the good dustproof effect of cylinder gas sealing ability, long service life.The gas tightness of this cylinder is reliable and good to be to adopt three seals, be the oil seal circle and the second airtight seal triple seal on the first airtight seal, hydraulic fluid chamber sealing and second piston on the first piston, hydraulic oil during wherein hydraulic fluid chamber seals, both can seal, also can play lubricated effect cylinder inner bore.Even if when the first airtight seal seal failure, gas acts on the hydraulic oil, this moment, the gentle seal ring of oil seal circle of hydraulic oil back formed very strong oil sealing effect, and the main active force of air pressure obtains buffering on hydraulic oil, relativity is at the oil seal circle like this, particularly its back that together the active force in airtight seal is very little, therefore can prolong the life-span of oil seal circle and neighbour airtight seal.
Because the rod chamber of cylinder directly communicates with atmosphere.In order effectively to avoid dust in air and foreign material to enter cylinder block inside, the cylinder body of this cylinder be equipped with outward can dedusting silencing apparatus, the outer suit air-strainer of silencing apparatus, and guide sleeve is equipped with the twice dust ring, the dust ring left side is provided with lubricating cup that the twice groove installs by the cylinder body cylindrical lubricating grease of packing into, this lubricating grease this both can play lubricated can also and dust ring cooperate dustproof.The dustproof mechanism of lubricating grease is that rod chamber can only enter rod chamber by the silencing apparatus and the air-strainer suction air of cylinder body when the piston rod left lateral, at this moment, because lubricating grease has intercepted the inflow of the air of the annular pass that guide sleeve endoporus and piston rod cylindrical form.Make air enter rod chamber by dust ring and lubricating grease.The dust ring effect is to strike off the dirt on the piston rod, if also have when very fine particle enters by the first layer dust ring, second layer dust ring also can block very fine particle.
Can add hydraulic oil by one-way valve, when oil is filled it up with by bleed screw with hydraulic oil in air discharge.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Embodiment
In Fig. 1, a kind of cylinder comprises cylinder body 10, end cap 1 is installed in cylinder body 10 1 ends, end cap 1 is provided with inlet hole 16, and the piston rod 9 in the cylinder body 10 passes guide sleeve 13 and is connected with second piston 6, and second piston, 6 one ends also are equipped with first piston 18, according to operating mode, scheme one is second piston 6 and first piston 18 no annexations, and promptly in use, first piston 18 is positioned at the top, under action of gravity, can guarantee that the oil of hydraulic fluid chamber 5 can not spill like this.Scheme two is that second piston 6 is connected with first piston 18, is used in the operating mode that first piston 18 is arranged in the below.
Be provided with hydraulic fluid chamber 5 between second piston 6 and the first piston 18, first piston 18 is provided with first airtight seal 3, the second pistons 6 and is provided with the oil seal circle 7 and the second airtight seal 8;
Described first piston 18 end faces also are provided with one-way valve 4, and one-way valve 4 is communicated with hydraulic fluid chamber 5.
Described silencing apparatus 12 peripheral hardwares have air-strainer 11.
Described silencing apparatus 12 is two.
Described dust ring 15 is two.
On the described piston rod 9 piston rod tail 17 is installed also.
Described cylinder body 10 is provided with lubricating cup 14, and lubricating cup 14 is communicated with the inner ring of guide sleeve 13 by the pipeline on the guide sleeve 13.
Described first piston 18 end faces also are provided with bleed screw 2, and bleed screw 2 is communicated with hydraulic fluid chamber 5 by pipeline.
During use, accumulator connects the inlet hole 16 on the end cap 1, piston rod tail 17 connects motor by driving mechanism, pre-gas of filling certain pressure in the accumulator, driven by motor piston rod tail 17, piston rod 9, second piston 6 and first piston 18 pressurized air enter in the accumulator, run into end cap 1 right side up to the left end face of first piston 18, finish stroke left, when motor piston rod tail 17 not, pressurized air in the accumulator promotes piston rod 9, second piston 6 and first piston 18 move to the right, the left side of running into guide sleeve 13 up to second piston, 6 right sides.Owing to have second piston 6, hydraulic fluid chamber 5 and first piston 18 three seals to exist, cylinder of the present utility model can around-the clockly move, in the running, the air in the rod chamber can only be by silencing apparatus 12 and air-strainer 11 turnover, good dustproof effect.
Claims (8)
1. cylinder, comprise cylinder body (10), end cap (1) is installed in cylinder body (10) one ends, end cap (1) is provided with inlet hole (16), it is characterized in that: the piston rod (9) in the cylinder body (10) passes guide sleeve (13) and is connected with second piston (6), second piston (6) one ends also are equipped with first piston (18), be provided with hydraulic fluid chamber (5) between second piston (6) and the first piston (18), first piston (18) is provided with the first airtight seal (3), and second piston (6) is provided with the oil seal circle (7) and the second airtight seal (8);
Cylinder body (10) outer ring is provided with at least one silencing apparatus (12) near the position of guide sleeve (13);
Guide sleeve (13) inner ring is provided with at least one dust ring (15).
2. a kind of cylinder according to claim 1 is characterized in that: described first piston (18) end face also is provided with one-way valve (4), and one-way valve (4) is communicated with hydraulic fluid chamber (5).
3. a kind of cylinder according to claim 1 is characterized in that: described silencing apparatus (12) peripheral hardware has air-strainer (11).
4. a kind of cylinder according to claim 1 is characterized in that: described silencing apparatus (12) is two.
5. a kind of cylinder according to claim 1 is characterized in that: described dust ring (15) is two.
6. a kind of cylinder according to claim 1 is characterized in that: piston rod tail (17) also is installed on the described piston rod (9).
7. a kind of cylinder according to claim 1 is characterized in that: described cylinder body (10) is provided with lubricating cup (14), and lubricating cup (14) is communicated with the inner ring of guide sleeve (13) by the pipeline on the guide sleeve (13).
8. a kind of cylinder according to claim 1 is characterized in that: described first piston (18) end face also is provided with bleed screw (2), and bleed screw (2) is communicated with hydraulic fluid chamber (5) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020687154XU CN201916278U (en) | 2010-12-29 | 2010-12-29 | Air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020687154XU CN201916278U (en) | 2010-12-29 | 2010-12-29 | Air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916278U true CN201916278U (en) | 2011-08-03 |
Family
ID=44416075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020687154XU Expired - Fee Related CN201916278U (en) | 2010-12-29 | 2010-12-29 | Air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798276A (en) * | 2017-11-16 | 2019-05-24 | 赛峰起落架系统英国有限公司 | Center-biased actuator |
-
2010
- 2010-12-29 CN CN201020687154XU patent/CN201916278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798276A (en) * | 2017-11-16 | 2019-05-24 | 赛峰起落架系统英国有限公司 | Center-biased actuator |
| US11565798B2 (en) | 2017-11-16 | 2023-01-31 | Safran Landing Systems Uk Ltd | Center biased actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678507B (en) | Double-acting hydraulic ejecting type vacuumizing and compressing device of double cylinders | |
| CN2924068Y (en) | Hydraulic drive mechanism for two-directional production of compressed gas | |
| CN210423227U (en) | Hydraulic cylinder with buffering effect | |
| CN206290528U (en) | A kind of buffering hydraulic cylinder assembly | |
| CN101865127B (en) | Pumping device and piston of conveying cylinder thereof | |
| CN201916278U (en) | Air cylinder | |
| CN103671357A (en) | Special buffering and sealing device for crust breaking cylinder | |
| CN207827749U (en) | A kind of hydraulic jack of fast lifting | |
| CN102705298A (en) | Hydraulic reciprocating seal leakage recovery device | |
| CN202327069U (en) | Self-lubricating piston structure | |
| CN205744378U (en) | The piston component of diaphragm type electric vacuum pump for automobile | |
| CN102367580B (en) | Electrolytic aluminium crust breaking cylinder sealing system | |
| CN202429190U (en) | Air booster pump of brake system of engineering machinery | |
| CN104747407A (en) | Oil removal compressor with lubrication function | |
| CN105952624A (en) | Air outlet end cover assembly of electric vacuum pump for diaphragm type automobile | |
| CN205383072U (en) | Plunger pump packing device | |
| CN2837159Y (en) | Oil-gas brake master cylinder | |
| CN202297806U (en) | Electrolytic aluminum crust-breaking cylinder sealing system | |
| CN105889041A (en) | Air entering/draining mechanism for membrane type automobile electric vacuum pump | |
| CN212202692U (en) | Composite hydraulic cylinder with stable high-speed output tonnage | |
| CN201884652U (en) | Double guide plunger sealing structure | |
| CN105971861A (en) | Running mechanism of electric vacuum pump for diaphragm type automobile | |
| CN113007355B (en) | Reciprocating compressor packing sealing mechanism | |
| CN202833416U (en) | Hydraulic reciprocating sealing leakage recovery device | |
| CN201588784U (en) | 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: 20110803 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |