CN104454760A - Hydraulic cylinder - Google Patents
Hydraulic cylinder Download PDFInfo
- Publication number
- CN104454760A CN104454760A CN201410698040.8A CN201410698040A CN104454760A CN 104454760 A CN104454760 A CN 104454760A CN 201410698040 A CN201410698040 A CN 201410698040A CN 104454760 A CN104454760 A CN 104454760A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- hydraulic cylinder
- cylinder body
- cavity
- oil hydraulic
- 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
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a hydraulic cylinder which comprises a cylinder body and a piston and further comprises a heat insulation sleeve and a guide cylinder. The guide cylinder is arranged between the piston and the cylinder body. The heat insulation sleeve is arranged on the periphery of the cylinder body in a sleeving mode. An outer cavity is formed between the heat insulation sleeve and the cylinder body. Air vents are formed in the outer cavity. According to the hydraulic cylinder, both the inner surface and the outer surface of the hydraulic cylinder are provided with cavity structures, and compressed air flows in the two cavity layers to take away and discharge the heat, so that the whole hydraulic cylinder is fully cooled.
Description
Technical field
The present invention relates to technical field of hydraulic equipment, especially a kind of oil hydraulic cylinder for hot environment.
Background technique
At present, the ubiquitous technological level of domestic hydraulic product manufacturing enterprise and technical equipment fall behind, product is under the high temperature condition of 400 DEG C, working life only has about 1 month, although oil hydraulic cylinder production line is constantly carrying out technical renewal transformation, but overall technical merit still has larger gap with comparing abroad, therefore, to this situation oil hydraulic cylinder that a structure is simple, cost is low in the urgent need to developing, easy to use, resistance to high temperature good, the life-span is long.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of oil hydraulic cylinder, structure is ingenious, long service life.
In order to realize foregoing invention object, the invention provides following technological scheme: a kind of oil hydraulic cylinder, comprising cylinder body and piston, also comprise collet and guide cylinder, this guide cylinder is established between piston and cylinder; This collet is set in cylinder body periphery, is provided with external cavity between the two; This external cavity is provided with vent.
Further, inner cavity is provided with between this guide cylinder and cylinder body.
Further, this cylinder body is provided with the through hole being communicated with inner cavity and external cavity.
Compared with prior art, the present invention has the following advantages: be equipped with cavity structure at the inner and outer surface of oil hydraulic cylinder, adopts pressurized air fluxion strap in two cavity layers to walk heat and discharges, liquid cylinder entity is fully cooled.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of oil hydraulic cylinder as shown in Figure 1, comprises piston 1 and cylinder body 2, also comprises collet 3 and guide cylinder 4, is provided with an annular air chamber between guide cylinder 4 and cylinder body 2 internal surface; This collet 3 is set in cylinder body 2 periphery, is provided with annular compression air cavity between the two; This annular compression air cavity is provided with import 31 and outlet 32.Two annular air chambeies, the annular compression air cavity especially between collet 3 and cylinder body 2, can import cryogen, can reduce the temperature of cylinder body 2 fast.
Cylinder body 2 is provided with the through hole 21 being communicated with annular air cavity and annular compression air cavity, this structural design can make pressurized air enter the annular compression air cavity between collet 3 and cylinder body 2 parts from the compressed air inlet port 31 collet 3, annular air chamber between these sky airflow passes guide cylinder 4 and cylinder body 2 parts, gas in two air cavitys can take away most of heat on oil hydraulic cylinder surface, thus formation thermal air current, finally discharge from the air vent of the front end of guide cylinder 4.
Therefore, this technology can realize adopting the pressurized air of flowing the temperature of oil hydraulic cylinder outer surface to be taken away as the air cooling way of cooling source, thus in the temperature range that normally uses of the Sealing that oil hydraulic cylinder inside temperature can be made to drop to seal arrangement, its resistance to high temperature is very good, extends oil hydraulic cylinder operating life in high temperature environments widely.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. an oil hydraulic cylinder, comprises cylinder body and piston, it is characterized in that: also comprise collet and guide cylinder, and this guide cylinder is established between piston and cylinder; This collet is set in cylinder body periphery, is provided with external cavity between the two; This external cavity is provided with vent.
2. oil hydraulic cylinder as claimed in claim 1, is characterized in that: be provided with inner cavity between this guide cylinder and cylinder body.
3. oil hydraulic cylinder as claimed in claim 2, is characterized in that: this cylinder body is provided with the through hole being communicated with inner cavity and external cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698040.8A CN104454760A (en) | 2014-11-28 | 2014-11-28 | Hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698040.8A CN104454760A (en) | 2014-11-28 | 2014-11-28 | Hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454760A true CN104454760A (en) | 2015-03-25 |
Family
ID=52901335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410698040.8A Pending CN104454760A (en) | 2014-11-28 | 2014-11-28 | Hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438557A (en) * | 2016-10-10 | 2017-02-22 | 合肥协力液压科技有限公司 | Hydraulic cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773369Y (en) * | 2005-01-25 | 2006-04-19 | 杜南勇 | Temperature-resistant hydraulic cylinder |
| JP2009270605A (en) * | 2008-05-02 | 2009-11-19 | Koganei Corp | Pneumatic cylinder |
| CN202007807U (en) * | 2011-03-28 | 2011-10-12 | 柳州威力士液压设备有限公司 | Air-cooling high temperature resistance hydraulic cylinder |
| CN102678666A (en) * | 2012-06-04 | 2012-09-19 | 格力乐液压系统(常州)有限公司 | Water cooling type hydraulic oil cylinder |
| CN103016448A (en) * | 2012-11-30 | 2013-04-03 | 天津市三特电子有限公司 | Air-cooled-type pneumatic actuator device |
| CN202955057U (en) * | 2012-12-10 | 2013-05-29 | 泰州市旺鑫耐火材料有限公司 | Oil cylinder of tundish quick changing mechanism |
| CN104014985A (en) * | 2013-02-28 | 2014-09-03 | 柳州威力士液压设备有限公司 | High-temperature-resistant hydraulic cylinder manufacturing technology |
-
2014
- 2014-11-28 CN CN201410698040.8A patent/CN104454760A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773369Y (en) * | 2005-01-25 | 2006-04-19 | 杜南勇 | Temperature-resistant hydraulic cylinder |
| JP2009270605A (en) * | 2008-05-02 | 2009-11-19 | Koganei Corp | Pneumatic cylinder |
| CN202007807U (en) * | 2011-03-28 | 2011-10-12 | 柳州威力士液压设备有限公司 | Air-cooling high temperature resistance hydraulic cylinder |
| CN102678666A (en) * | 2012-06-04 | 2012-09-19 | 格力乐液压系统(常州)有限公司 | Water cooling type hydraulic oil cylinder |
| CN103016448A (en) * | 2012-11-30 | 2013-04-03 | 天津市三特电子有限公司 | Air-cooled-type pneumatic actuator device |
| CN202955057U (en) * | 2012-12-10 | 2013-05-29 | 泰州市旺鑫耐火材料有限公司 | Oil cylinder of tundish quick changing mechanism |
| CN104014985A (en) * | 2013-02-28 | 2014-09-03 | 柳州威力士液压设备有限公司 | High-temperature-resistant hydraulic cylinder manufacturing technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438557A (en) * | 2016-10-10 | 2017-02-22 | 合肥协力液压科技有限公司 | Hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |