CN104565358A - Hydraulic cylinder - Google Patents
Hydraulic cylinder Download PDFInfo
- Publication number
- CN104565358A CN104565358A CN201410547275.7A CN201410547275A CN104565358A CN 104565358 A CN104565358 A CN 104565358A CN 201410547275 A CN201410547275 A CN 201410547275A CN 104565358 A CN104565358 A CN 104565358A
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- CN
- China
- Prior art keywords
- cylinder
- heating element
- piston
- region
- section
- 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.)
- Granted
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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
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
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- 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
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
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- 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
- F15B15/1485—Special measures for cooling or heating
-
- 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
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- 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
- F15B21/0427—Heating
Abstract
The invention discloses a cylinder device. The cylinder device comprises a heating element which can heat part of the cylinder device or the whole cylinder device, wherein the heating element heats the cylinder device by a heat-carrying fluid.
Description
Technical field
The present invention relates to a kind of by the cylinder as described in the preamble of claim 1, especially oil hydraulic cylinder.
Background technique
This cylinder generally has cylinder housing, and piston is guided in described cylinder housing in the mode that can move axially.In described cylinder housing, two cylinder rooms are separated from each other by described piston.Piston rod extends from described piston, and this piston rod is passed completely through at least one the cylinder room in described cylinder room and stretched out from described cylinder housing by bar guide mechanism.Can setting example such as form be the Sealing of seal ring in described bar guide mechanism.In addition, described piston can have such as form on its outer lateral surface is equally the Sealing of seal ring.If use this cylinder under very low ambient temperature, such as under-40 DEG C, so the fact shows, no longer can carry out enough sealings at said temperatures.The conventional material of described Sealing and the conventional of described cylinder, especially the material of metal no longer can or can only use limitedly at said temperatures.Even if " special material " of the function of described cylinder also can be realized at such low temperatures because cost is high and unfavorable.This extreme temperature conditions such as can use during described cylinder and occur in the field of petroleum pump drive unit.
Know from prior art, such as, by electric heating cover, this cylinder be made up of material that commonly using is heated.In general described electric heating cover circumferentially surrounds described cylinder housing completely from the outside.But, this electric heating cover has following shortcoming: it can not or can only use limitedly in anti-explosion area.In addition, it installs trouble relatively.
Summary of the invention
In contrast, task of the present invention is, provide a kind of cylinder, it can manufacture inexpensively, and it can reliably start at quite low temperatures and/or run.
This task is resolved by the cylinder described in a kind of feature according to claim 1.
Other favourable improvement project of the present invention is the theme of other dependent claims.
A kind of cylinder for low temperature (oil hydraulic cylinder) cylinder assembly is in other words provided with according to the present invention.This cylinder has cylinder housing, and described cylinder housing then has the piston that can axially movably obtain guiding wherein.First cylinder room and the second cylinder room fluidly separate at this by described piston.Piston rod is with described piston for starting point extends, and this piston rod passes described cylinder housing and stretches out from described cylinder housing.Be advantageously provided heating element for heating at least one section of at least one section of described piston rod and/or at least one section of described piston and/or described cylinder housing.The section of described piston rod and/or the section of described piston then such as can be heated by described heating element to the corresponding section of described cylinder housing together.Described heat is carried by means of heat transport fluid by described heating element.
This solution has the following advantages: with little expense to provide a kind of cylinder that at least can partly heat, this cylinder also can use in anti-explosion area, heats because it is not electricity consumption.In addition advantageously, utilize this heating element not to be heat whole cylinder, but only specific section is heated.As there being section to be heated, be especially provided with the region of sealing.By described heating element, thus can by " standard cylinder " for low temperature, " special construction " under this low temperature with special material is in the past necessary.
Also can imagine, described heat transport fluid is used for cool described cylinder.
In other design proposal of the present invention, described heating element is preferably placed in in the shaft seal of described piston rod and/or the region of bar guiding element and/or be arranged in in the piston seal of described piston and/or the region of piston guide part.Described cylinder is utilized to achieve heating circuit thus, first this heating circuit heats near the guiding for reliably starting described cylinder and seal element or central region crucial especially, holds it in suitable temperature range in other words in running.Be guaranteed to the reliable in function of described shaft seal, this point why particular importance is because corresponding blow-by phenomenon can cause to external leakage.
If use two heating elements, so these two heating elements just correspondingly can have common or independent heating circuit.
Preferred described heat transport fluid is hydraulic oil.Described heating element can utilize the fluid identical with described cylinder to run inexpensively thus.Can imagine, the hydraulic oil of the oil hydraulic circuit of that use described cylinder or adjacent hydraulic mechanism.
In another kind of design proposal of the present invention, described heating element configuration is heating resistance collar, and this heating resistance collar surrounds described cylinder housing.Described heating resistance collar then preferably together defines fluid chamber or liquid chamber with described cylinder housing.Described fluid chamber or liquid chamber can be mounted with described heat transport fluid, and described heat transport fluid can be released from described fluid chamber.Preferred described heating element has inlet attack and outlet connection to carry out heat transport fluid supply to described fluid chamber.Also can imagine, described joint construction is on described cylinder housing or the inside.Described heating resistance collar is structurally extremely simple additional member, and it can not have a negative impact to the basic structure of described cylinder.Such as can imagine, described heating resistance collar is arranged on traditional cylinder.And the heat transport fluid of after heat can easily flow in especially narrow fluid chamber by described inlet attack, in described fluid chamber, heat is distributed to adjacent component.
Described fluid chamber is formed advantageous by the recess in the inwall being in described heating resistance collar and/or in the outer wall of described cylinder housing.Described fluid chamber is presented in one or two abutment facings be between described heating resistance collar and described cylinder housing thus.Described heating resistance collar is preferably configured as hollow cylindrical or circular.As recess, can groove, such as circular groove be set.
In order to the major part in heat imports in described cylinder, described heating resistance collar is made up of the material with low capacity of heat transmission low heat conductivity in other words substantially or completely.Almost the heat of heat transport fluid is not imported in described heating resistance collar from described fluid chamber thus, but import in the section adjacent with described heating resistance collar of described cylinder housing.As an alternative or additional project, described heating resistance collar can have coating, and this coating has low capacity of heat transmission low heat conductivity in other words equally.Described heating resistance collar is preferably configured as adiabatic structure thus and/or is made up of substantially adiabatic material.
In the region can transferred to desired by described cylinder housing to make the share of the maximum possible in heat, at least described region is made up of the material with good capacity of heat transmission heat conductivity good in other words substantially.As this region, be preferably provided with the region of described shaft seal and/or the region of described piston seal.Scheme or replacement scheme as a supplement, described cylinder housing at least can have coating in the region of described shaft seal and/or in the region of described piston seal, and this coating can realize good capacity of heat transmission heat conductivity good in other words.Described cylinder housing is preferably provided with the material of energy heat conduction thus in the region of described shaft seal and/or in the region of described piston seal.
In another kind of design proposal of the present invention, described cylinder housing for described in such as there is the shaft seal of multiple seal ring and there is for described bar guiding element the casing section of sleeve-shaped.Described casing section then can the material of preferred at least partly portion Duan Youneng heat conduction form and/or at least partly portion's section have can the coating of heat conduction.
Described casing section then preferably forms especially preassembled unit with described heating resistance collar.Described unit can be accomplished in the following manner: be threaded connection described casing section and described heating resistance collar positive portion's material in locking manner or force closure be connected.Sealing fast can be carried out by the described unit be made up of casing section and heating resistance collar to change and/or sealing system replacing.Can imagine as an alternative, described casing section and described heating resistance collar are configured to the structure of one.
So can design the geometrical shape of described fluid chamber, thus heat conduction is given described shaft seal by the best possibly.
Described casing section is such as a part for the cylinder cap (Zylinderkopf) of described cylinder or forms described cylinder cap.
The region of described piston seal can be preferably the cylinder sleeve (Zylinderrohr) of described cylinder housing, wherein said cylinder sleeve then surround by heating resistance collar.
Described heating resistance collar is then axially seen completely or be partially surround described cylinder sleeve.In another kind of design proposal of the present invention, described heating resistance collar is preferably positioned on described cylinder sleeve in the region of the final position of described piston (Endposition).
As Sealing, described piston can in its outer side surface and/or the described casing section for shaft seal can have at least one lip ring in side within it.
Be advantageously provided a kind of device for carrying out temperature detection.Can imagine at this, lower than using described heating element during predetermined temperature.
The described device for carrying out temperature detection is such as temperature transducer, and this temperature transducer is then connected with the controller for controlling described heating element.Scheme or replacement scheme as a supplement, can arrange thermodynamic valve, temp control switch and/or thermoregulator.
Described heating element can be made automatically, that is can to activate when needed when there is no manual intervention for the device carrying out temperature detection described in utilizing.
Preferably detecting described temperature from described fluid chamber outlet side out.
Accompanying drawing explanation
Preferred embodiment be described in detail of the present invention by accompanying drawing below.Unique accompanying drawing 1 with longitudinal section show according to a kind of embodiment, by cylinder of the present invention.
reference numerals list:
1 cylinder
2 cylinder housings
4 cylinder sleeves
6 cylinder bottoms
8 cylinder caps
10 pistons
12 piston rods
14 cylinder rooms
16 cylinder rooms
18 penetrating parts
20 abutment facings
22 casing section
24 penetrating parts
26 Sealings
27 slip rings
28 Sealings
The 30 axial collars
32 annular end faces
34 inner sleeves
36 annular end faces
38 inner side surfaces
40 inner side surfaces
42 compression fittingss
44 recesses
46 compression fittingss
48 first heating elements
50 second heating elements
52 inner side surfaces
The 54 axial collars
The 56 radial collars
58 ring surfaces
60 screws
62 circular grooves
64 inlet attacks
66 outlet connections
68 flanges
70 devices
72 inner side surfaces
74 circular grooves
76 ring surfaces
78 ring surfaces
80 outer side surfaces
82 inlet attacks
84 outlet connections
86 temperature transducers.
Embodiment
According to accompanying drawings that show cylinder 1 cylinder assembly in other words.Described cylinder 1 is the oil hydraulic cylinder that can be used in low temperature.This oil hydraulic cylinder has the cylinder housing 2 with cylinder sleeve 4.Described cylinder sleeve 4 is closed with cylinder bottom 6 and cylinder cap 8.In described cylinder sleeve 4, piston 10 is can mode be guided in axial sliding.Piston rod 12 is connected with described piston 10, and described piston rod is from the axial extension in described piston 10s.First cylinder room 14 and the second cylinder room 16 separate by described piston 10 in described cylinder sleeve 4.Described piston rod 12 through described first cylinder room 14, forms the fluid chamber of ring-type at this thus in described first cylinder room.In addition, described piston rod 12 passes through the penetrating part 18 of roughly column through described cylinder cap 8.
At described cylinder cap 8 place, casing section 22 is connected on the abutment facing 20 of described piston 10 dorsad.Described casing section is passed by penetrating part 24 by described piston rod 12 equally, and wherein said piston rod 12 is then protruding from described casing section 22.In described penetrating part 18 and 24, be correspondingly provided with Sealing and slider.Ensure that described Sealing leak free relative to external environment condition is configured to lip ring at this, wherein in described penetrating part 24, be provided with two lip rings 26.Described slider is configured to slip ring 27 and for guiding described piston rod 12 slidably.
Described piston 10 has the Sealing and two slip rings 27 that form is lip ring 28 on its outer lateral surface equally, wherein axially sees that described lip ring 28 is arranged between described slip ring 27.
Described cylinder cap 8 is embedded in described cylinder sleeve 4 with the axial collar (Axialbund) 30, the wherein said axial collar 30, point to the abutment facing stop surface in other words that the annular end face 32 of piston 10 is used as described piston 10.Described cylinder bottom 6, the axial collar 34 be arranged in the second cylinder room 16 forms another stop surface abutment facing in other words, the wherein said axial collar 34 is embedded in described cylinder sleeve 4 equally.Annular end face 36 that be then provided with described cylinder bottom 6 as abutment facing, that point to piston 10.The inner side surface 40 of described cylinder bottom 6 defines the recess of blind hole shape, and compression fittings 42 direction is radially passed in described recess.Another compression fittings is provided with in the region of described cylinder cap 8.Described cylinder cap 8 has the recess 44 of roughly blind hole shape equally, and compression fittings 46 is radially passed in described recess.Pressure medium hydraulic oil in other words can be loaded to described second cylinder room 16 by described compression fittings 42, or pressure medium can be released from described second cylinder room 16.Pressure medium can be loaded to described first cylinder room 14 by described compression fittings 46, or pressure medium can be released from described first cylinder room 14.
In order to heat described cylinder 1 in the region of the Sealing 26,28 of described cylinder 1, be provided with the first and second heating elements 48,50.Described first heating element 48 is configured to heating resistance collar and has columned inner side surface 52 substantially.Described cylinder cap 8 is embedded in described inner side surface 52 hermetically with the axial collar 54 of the described axial collar 30 dorsad.In addition, described first heating element 48 surrounds described casing section 22, and the maximum outer diameter of this casing section is roughly equivalent to the maximum outer diameter of the described axial collar 54.Described casing section 22 has the radial collar 56, and this radial collar is resisted against on described first heating element 48 with the ring surface 58 that it points to the direction of described piston 10.The described radial collar 56 is used as flange, and this flange is connected with described first heating element 48 by screw 60.
In the section in the region surrounded by the first heating element 48, be placed to by circular groove 62 in described casing section 22, this circular groove 62 is used as the fluid chamber holding heat transport fluid.Direction is axially seen, described circular groove 62 separates with the radial collar 56 of described casing section 22 and separates with the axial collar 54 of described cylinder cap 8.In order to fluid connects the fluid chamber formed by described circular groove 62, in described first heating element 48, direction roughly is radially provided with inlet attack 64 and outlet connection 66.Described first heating element 48 has flange 68 equally, can fix described cylinder 1 with this flange.Described first heating element 48 and described cylinder cap 8 are fixed on described cylinder 1 by conventional device 70.Described first heating element 48 and described casing section 22 are preferably formed a unit.Described casing section 22 such as can by can heat conduction well and the material with high thermal conductivity form, described first heating element 48 is then preferably made up of the material with the low capacity of heat transmission and low heat conductivity.The casing section 22 of heat conduction well heat transport fluid can be directed into described Sealing 26 described penetrating part 24 in other words from the described fluid chamber formed by circular groove 62 by described.The heat transport fluid of heat is then flowed to described circular groove 62 by described inlet attack 64 and is discharged by described outlet connection 66.
Described second heating element 50 is configured to heating resistance collar and the cylinder sleeve 4 of roughly open column shape described in surrounding equally.The width that described heating element 50 is axially seen roughly is in the order of magnitude of the width of described piston 10.Described second heating element 50 is fixed on described cylinder sleeve 4 by conventional device.Circular groove 74 be presented to described second heating element 50, general arrangement is in columned inner side surface 72.This circular groove 74 direction axially see with the second heating element 50 of described sleeve-shaped, dorsad ring surface 76 and 78 each other separate.This circular groove 74 together defines fluid chamber with the outer side surface 80 of described cylinder sleeve 4.In order to heat transport fluid being input in described fluid chamber, radially inlet attack 82 is placed in described second heating element 50, and in order to discharge heat transport fluid, equally radially outlet connection 84 is placed in described heating element 50.By being placed to the Sealing in described second heating element 50, vertically the described fluid chamber consisted of circular groove 74 is sealed.
If described piston 10 be resisted against described cylinder bottom 6, as on the annular end face 36 of stop surface, so this piston just by its seal arrangement in the region of the circular groove 74 of described second heating element 50.Described heating element 50 is preferably made up of the material of thermal insulation corresponding to described first heating element 48.In order to described piston 10 in other words its Sealing 28 heat, the heat transport fluid of heat is flowed to the described fluid chamber that consists of circular groove 74 by described inlet attack 82 and is discharged by described outlet connection 84.
The joint 64 and 66 of described first heating element 48 second heating element 50 in other words 82 and 84 is circumferentially seen and is separated as far as possible away from each other in other words, so that the heat transport fluid entering into corresponding fluid chamber arrives corresponding outlet connection 66 88 places in other words through distance long as far as possible, thus distribute heat as much as possible.
Described heating element 48,50 can be connected with heat transport fluid by common fluid circuit.Also can imagine as an alternative, it carrys out heat supply by the loop of self respectively.If hydraulic oil is used as heat transport fluid, so described heating element 48 and 50 such as also can use by the oil hydraulic circuit of described cylinder 1 or adjacent hydraulic package.
In the outlet connection 66 of described first heating element 48 or in its downstream, be provided with temperature transducer 86, this temperature transducer detects the temperature of described heat transport fluid.Described first heating element 48 or described two heating elements 48,50 can be controlled by detected temperature.Can imagine as an alternative, the heat transport fluid of extra sensor for flowing out from described second heating element 50 is set.Also can imagine, only be used for described temperature transducer 86 detecting the temperature of the heat transport fluid flowed out from described second heating element 50.
Disclose a kind of cylinder assembly, this cylinder assembly has the heating element for heating section or the whole cylinder assembly of this cylinder assembly, and wherein said heating element utilizes heat transport fluid to run.
Claims (14)
1. there is the cylinder of cylinder housing (2), in described cylinder housing, piston (10) is guided movably, first cylinder room (14) and the second cylinder room (16) separate by described piston, wherein from described piston, (10)s extended and passed described cylinder housing (2) piston rod (12), it is characterized in that, be provided with heating element (48, 50) for heating a section of at least one section (26) of described piston rod (12) and/or at least one section (4) of described cylinder housing (2) and/or described piston (10), heat can flow to described section by heat transport fluid.
2., by cylinder according to claim 1, wherein said heating element (48,50) is arranged in the region for the shaft seal (26) of described piston rod (12) and/or is arranged in the region for the piston seal (28) of described piston (10).
3., by the cylinder described in claim 1 or 2, wherein said heat transport fluid is hydraulic oil.
4. by the cylinder according to any one of Claim 1-3, wherein said heating element (48,50) has the heating resistance collar (48,50) surrounding described cylinder housing (2), described heating resistance collar and described cylinder housing (2) together define fluid chamber (62,74) and described heating resistance collar has inlet attack (64,82) and outlet connection (66,84), and described inlet attack and outlet connection are connected with described fluid chamber (62,74) fluid respectively.
5., by cylinder according to claim 4, wherein groove (62,64) is placed in the inwall (72) of described heating resistance collar and/or in the outer wall of described cylinder housing (2) to construct described fluid chamber (62,74).
6. by cylinder in any one of the preceding claims wherein, wherein said heating element (48,50) is made up of a kind of material with the low capacity of heat transmission at least substantially, and/or wherein said heating element (48,50) at least part of portion section has a kind of coating with the low capacity of heat transmission.
7. by the cylinder according to any one of claim 2 to 6, wherein said cylinder housing (2) is substantially made up of a kind of material with good heat conductive ability in the region of described shaft seal (26) and/or in the region of described piston seal (28), and/or wherein said cylinder housing (2) at least has a kind of coating with good heat conductive ability in the region of described shaft seal (26) and/or at least in the region of described piston seal (28).
8., by the cylinder according to any one of claim 2 to 7, wherein said cylinder housing (2) has the casing section (22) of sleeve-shaped in order to described shaft seal (26).
9., by cylinder according to claim 8, wherein said casing section (22) forms a unit together with described heating element (48).
10., by the cylinder described in claim 8 or 9, wherein said casing section (22) is a part or the cylinder cap of cylinder cap (8).
11. by cylinder according to any one of claim 2 to 10, the region of wherein said piston seal (28) is the cylinder sleeve (4) of described cylinder housing (2), wherein said cylinder sleeve (4) surround by described heating element (50).
12. by cylinder according to claim 11, and the direction wherein along the axis of described cylinder (1) is seen, described heating element (50) surrounds described cylinder sleeve (4) in the region of the final position of described piston (10).
13. by cylinder in any one of the preceding claims wherein, is wherein provided with the device (86) for carrying out temperature detection, and wherein lower than using described heating element (48,50) during predetermined temperature.
14. by cylinder according to claim 13, and wherein said device is temperature transducer (86), thermodynamic valve, temp control switch and/or thermoregulator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310221082 DE102013221082A1 (en) | 2013-10-17 | 2013-10-17 | hydraulic cylinders |
| DE102013221082.5 | 2013-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565358A true CN104565358A (en) | 2015-04-29 |
| CN104565358B CN104565358B (en) | 2020-09-15 |
Family
ID=52775041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410547275.7A Active CN104565358B (en) | 2013-10-17 | 2014-10-16 | Hydraulic cylinder |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104565358B (en) |
| DE (1) | DE102013221082A1 (en) |
| RU (1) | RU2668515C1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697452A (en) * | 2016-03-22 | 2016-06-22 | 周玉翔 | High-power hydraulic device with temperature protection device |
| CN106321557A (en) * | 2016-10-10 | 2017-01-11 | 合肥协力液压科技有限公司 | Hydraulic cylinder |
| CN106438749A (en) * | 2015-08-07 | 2017-02-22 | Fte汽车股份有限公司 | Hydraulic cylinder, particularly slave cylinder for a hydraulic clutch actuating system for motor vehicles |
| CN107923420A (en) * | 2015-08-25 | 2018-04-17 | Ｋｙｂ株式会社 | Fluid-pressure cylinder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762956B (en) * | 2017-01-24 | 2018-03-09 | 常州液压成套设备厂有限公司 | Quick response airdraulic actuator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030930U (en) * | 1988-03-17 | 1989-01-18 | 浙江大学 | Thermal insulating cooling sleeve for precision spindle system |
| JP2002061769A (en) * | 2000-08-17 | 2002-02-28 | Mitsubishi Heavy Ind Ltd | Actuator for control valve for cryogenic fluid |
| CN2900863Y (en) * | 2006-04-19 | 2007-05-16 | 宝鸡石油机械有限责任公司 | Automatic compensating plunger seal device for well drilling pump |
| CN201121575Y (en) * | 2007-10-16 | 2008-09-24 | 宝鸡石油机械有限责任公司 | Total travel cooling drilling pump cylinder jacket piston |
| CN201715842U (en) * | 2010-06-24 | 2011-01-19 | 云南民汇投资开发有限公司 | Cooling device for main shaft bearing of rotary dryer |
| CN102562298A (en) * | 2012-02-13 | 2012-07-11 | 陈名辉 | Heat-insulation internal cooling engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4439454C2 (en) * | 1994-11-04 | 1997-09-04 | Man Takraf Foerdertechnik Gmbh | Circuit arrangement for preheating hydraulic circuits |
| RU2351810C1 (en) * | 2007-11-19 | 2009-04-10 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" | Hydraulic cylinder |
| RU94649U1 (en) * | 2008-10-13 | 2010-05-27 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" | HYDRAULIC ENGINE |
| US20110139270A1 (en) * | 2009-12-11 | 2011-06-16 | Veilleux Jr Leo J | Thermal switched cooling orifice for actuation systems |
| KR101163510B1 (en) * | 2010-10-07 | 2012-07-10 | 주식회사 삼우에코 | heat resistant for cylinder |
-
2013
- 2013-10-17 DE DE201310221082 patent/DE102013221082A1/en active Pending
-
2014
- 2014-10-16 RU RU2014141783A patent/RU2668515C1/en active
- 2014-10-16 CN CN201410547275.7A patent/CN104565358B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030930U (en) * | 1988-03-17 | 1989-01-18 | 浙江大学 | Thermal insulating cooling sleeve for precision spindle system |
| JP2002061769A (en) * | 2000-08-17 | 2002-02-28 | Mitsubishi Heavy Ind Ltd | Actuator for control valve for cryogenic fluid |
| CN2900863Y (en) * | 2006-04-19 | 2007-05-16 | 宝鸡石油机械有限责任公司 | Automatic compensating plunger seal device for well drilling pump |
| CN201121575Y (en) * | 2007-10-16 | 2008-09-24 | 宝鸡石油机械有限责任公司 | Total travel cooling drilling pump cylinder jacket piston |
| CN201715842U (en) * | 2010-06-24 | 2011-01-19 | 云南民汇投资开发有限公司 | Cooling device for main shaft bearing of rotary dryer |
| CN102562298A (en) * | 2012-02-13 | 2012-07-11 | 陈名辉 | Heat-insulation internal cooling engine |
Cited By (6)
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| CN106438749A (en) * | 2015-08-07 | 2017-02-22 | Fte汽车股份有限公司 | Hydraulic cylinder, particularly slave cylinder for a hydraulic clutch actuating system for motor vehicles |
| CN106438749B (en) * | 2015-08-07 | 2019-11-22 | Fte汽车股份有限公司 | Hydraulic cylinder, particularly for the slave cylinder of motor vehicle hydraulic clutch actuation system |
| CN107923420A (en) * | 2015-08-25 | 2018-04-17 | Ｋｙｂ株式会社 | Fluid-pressure cylinder |
| CN107923420B (en) * | 2015-08-25 | 2020-02-14 | Ｋｙｂ株式会社 | Fluid pressure cylinder |
| CN105697452A (en) * | 2016-03-22 | 2016-06-22 | 周玉翔 | High-power hydraulic device with temperature protection device |
| CN106321557A (en) * | 2016-10-10 | 2017-01-11 | 合肥协力液压科技有限公司 | Hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565358B (en) | 2020-09-15 |
| RU2668515C1 (en) | 2018-10-01 |
| DE102013221082A1 (en) | 2015-04-23 |
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