CN106762946A - A kind of single-action hydraulic cylinder shown with internal leakage - Google Patents
A kind of single-action hydraulic cylinder shown with internal leakage Download PDFInfo
- Publication number
- CN106762946A CN106762946A CN201611253382.4A CN201611253382A CN106762946A CN 106762946 A CN106762946 A CN 106762946A CN 201611253382 A CN201611253382 A CN 201611253382A CN 106762946 A CN106762946 A CN 106762946A
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- cylinder
- piston
- hydraulic cylinder
- oil
- liquid level
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- 239000007788 liquid Substances 0.000 claims abstract description 56
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000003921 oil Substances 0.000 claims description 106
- 239000010727 cylinder oil Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
-
- 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
- F15B15/1428—Cylinders
-
- 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
- F15B15/1433—End caps
-
- 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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of single-action hydraulic cylinder shown with internal leakage, sealed including cylinder body, the first screw, the second screw, upper end cover, piston, piston rod, spring, piston first, piston second is sealed, plug, air cleaner, oil pipe, sealing gasket, hollow screw, articulated joint, etc. oil tube bracket and liquid level sensor；A kind of single-action hydraulic cylinder shown with internal leakage proposed by the present invention, liquid level sensor is mounted with the side in single-action hydraulic cylinder inoperative chamber, the liquid level position sensed by liquid level sensor, and liquid level position data are transferred to ancillary equipment, shown and alarmed, the internal leakage situation of single-action hydraulic cylinder is grasped in time.If liquid level is higher by certain position, the fluid in single-action hydraulic cylinder inoperative chamber is discharged by drain line, prevent fluid external leakage.Simple structure of the present invention, reliable operation, can grasp the internal leakage situation of single-action hydraulic cylinder, prevent fluid external leakage, be with a wide range of applications.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder, and in particular to a kind of single-action hydraulic cylinder shown with internal leakage, belong to electricity
Gas and field of electromechanical technology.
Background technology
At present, the extensive numerous areas of hydraulic cylinder, for double acting hydraulic cylinder, because lower work chamber is involved in work
Make, the micro-leakage inside hydraulic cylinder does not interfere with the normal work of hydraulic cylinder；For single-action hydraulic cylinder, piston and
Piston rod stretches out, and dependence is that the promotion of high-voltage oil liquid realizes that returning needs to be realized by external force, such as spring force
Deng due to single-action hydraulic cylinder only one of which working chamber participation work, such as the cavity of resorption participation of single-action hydraulic cylinder, if piston
On sealing there is micro-leakage, into the epicoele of single-action hydraulic cylinder, the meeting of single-action hydraulic cylinder epicoele is constantly gathered, finally
External leakage is formed, working environment is polluted, for certain some important process place, such as, nuclear power station etc., such case is absolutely not
Allow, so, the present invention proposes a kind of single-action hydraulic cylinder shown with internal leakage, in single-action hydraulic cylinder inoperative chamber
Side is mounted with liquid level sensor, the liquid level position sensed by liquid level sensor, and liquid level position data are transferred to periphery
Equipment, is shown and is alarmed, and the internal leakage situation of single-action hydraulic cylinder is grasped in time.If liquid level is higher by certain position, lead to
The fluid crossed in drain line release single-action hydraulic cylinder inoperative chamber, prevents fluid external leakage.
The content of the invention
It is an object of the invention to provide a kind of single-action hydraulic cylinder shown with internal leakage.
The technical solution adopted by the present invention is：A kind of single-action hydraulic cylinder shown with internal leakage, including cylinder body, the first spiral shell
Nail, the second screw, upper end cover, piston, piston rod, spring, piston first are sealed, piston second is sealed, plug, air filtration
Device, oil pipe, sealing gasket, hollow screw, articulated joint, oil tube bracket and liquid level sensor；The cylinder body is in U shape, described
The bottom of cylinder body offers that hydraulic cylinder oil inlet, hydraulic cylinder first leads to oil circuit and hydraulic cylinder second leads to oil circuit, and the hydraulic cylinder enters
Hydraulic fluid port is located at the side wall of cylinder body, and hydraulic cylinder oil inlet, hydraulic cylinder first leads to oil circuit and hydraulic cylinder second leads to oil circuit and cylinder interior
It is connected, forms " L " type path；The upper end cover is made up of mounting flange, cylinder and upper cover plate, mounting flange, cylinder and on
Cover plate is welded into a upper end cover for entirety from bottom to up, and the left lower of the cylinder is offered and extends radially through the second of cylinder
Screwed hole, the right upper portion of cylinder offers the first screwed hole for extending radially through cylinder, and the lower right side of cylinder is welded with drains the oil
Pipe, offers the 3rd screwed hole for axially penetrating through inside drain line；The oil tube bracket carries central through hole, and oil tube bracket is fixed
Installed in the left side central portion of cylinder；Hollow screw first is offered inside the hollow screw, and to lead to oil circuit and hollow screw second logical
Oil circuit；Annular oil cavity and the logical oil circuit of articulated joint are offered inside the articulated joint, oil circuit and annular oil cavity are led in articulated joint
It is interconnected；The lower end of the oil pipe is integral with the upper end sealing welding of articulated joint, the welding body of oil pipe and articulated joint
The central through hole for inserting from the top down and passing through oil tube bracket, the centre bore that hollow screw is inserted and passes through articulated joint is screwed into
Second screwed hole of cylinder, is installed along with articulated joint together with oil pipe the left side of cylinder, hollow screw, articulated joint, cylinder
Corresponding sealing is installed between the left side outer wall of body, also, the second screwed hole, hollow screw first leads to oil circuit, hollow screw
The endoporus of the second logical oil circuit, annular oil cavity, the logical oil circuit of articulated joint and oil pipe is interconnected；The liquid level sensor is arranged on oil
The upper end of pipe, and the position of oil pipe inner fluid liquid level can be sensed；The air cleaner is arranged on the of cylinder right upper portion
In one screwed hole；The plug is arranged on the right-hand member of drain line；The circumference of the piston is provided with piston first and seals and piston
Second sealing；The piston and piston rod are combined into one, and installed in the inside of cylinder body, piston is together with piston rod, piston
One sealing and the sealing of piston second can be moved up and down in the inside of cylinder body；The spring housing dress is on the piston rod；The upper end
Lid is securedly mounted to the upper end of cylinder body by screw, is provided with sealing gasket between upper end cover and cylinder body, and piston rod is from upper end cover
Upper cover plate centre bore is passed, and the lower end of spring pushes against the upper surface of piston, and the upper end of spring pushes against the lower surface of upper cover plate, piston
Lower surface and the U shape lower inside of cylinder body between formed hydraulic cylinder cavity of resorption, on the upper surface of piston and the inside of cylinder body
Hydraulic cylinder epicoele is formed between side and the inside of cylinder, under the action of the spring, its original position is in cylinder for piston and piston rod
The inside bottom of body.
When high-voltage oil liquid by hydraulic cylinder oil inlet, hydraulic cylinder first leads to oil circuit and hydraulic cylinder second leads to oil circuit, into liquid
Cylinder pressure cavity of resorption, acts on the lower surface of piston, overcomes the active force of spring, promotes piston and piston rod to eject upwards, acts on
Outer load, if the sealing of piston first and piston second are sealed and there is micro-leakage up and down, the fluid of leakage passes through piston first
Sealing and piston second are sealed, and from bottom to top, into hydraulic cylinder epicoele, are got off for a long time, and the fluid of hydraulic cylinder epicoele is progressively accumulated
Poly-, fluid liquid level constantly rises, and when fluid liquid level is higher than the second screwed hole, fluid is by the second screwed hole, hollow screw the
One logical oil circuit, hollow screw second lead to the endoporus that oil circuit, annular oil cavity, the logical oil circuit of articulated joint enter oil pipe, now in oil pipe
Liquid level it is identical with the liquid level in hydraulic cylinder epicoele, by liquid level sensor can sense when in oil pipe liquid level position
Put, and liquid level position data are transferred to ancillary equipment, shown and alarmed, the internal leakage of single-action hydraulic cylinder is grasped in time
Situation.If the liquid level in hydraulic cylinder epicoele is higher by certain position, by turning on plug, the fluid in hydraulic cylinder epicoele is discharged,
Prevent the liquid level in hydraulic cylinder epicoele to be higher by the first screwed hole, produce fluid external leakage；When the oil liquid pressure of hydraulic cylinder cavity of resorption is released
After putting, the active force of spring promotes piston and piston rod to return downwards, and the fluid of hydraulic cylinder cavity of resorption passes through hydraulic cylinder cavity of resorption, liquid
Cylinder pressure first leads to the outside oil extraction of oil circuit, hydraulic cylinder oil inlet.
The plug can be substituted with stop valve；
Seal assembly is installed between the plug and cylinder.
The beneficial effects of the invention are as follows：
The present invention proposes a kind of single-action hydraulic cylinder shown with internal leakage, is installed in the side in single-action hydraulic cylinder inoperative chamber
Liquid level sensor, the liquid level position sensed by liquid level sensor, and liquid level position data are transferred to ancillary equipment, carry out
Display and alarm, grasp the internal leakage situation of single-action hydraulic cylinder in time.If liquid level is higher by certain position, released by drain line
The fluid in single-action hydraulic cylinder inoperative chamber is put, fluid external leakage is prevented.
Brief description of the drawings
The embodiment for being given below in conjunction with the accompanying drawings is described in more detail to the present invention.
Fig. 1 is structural representation of the invention；
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of single-action hydraulic cylinder shown with internal leakage, including cylinder body 1, the first screw 2, second
Screw 14, upper end cover 3, piston 4, piston rod 5, spring 6, sealing 7, piston second sealing 8, plug 9, air filtration of piston first
Device 10, oil pipe 11, sealing gasket 13, hollow screw 16, articulated joint 17, oil tube bracket 18 and liquid level sensor 19；The cylinder body 1
In U shape, the bottom of the cylinder body 1 offers hydraulic cylinder oil inlet 1-1, hydraulic cylinder first and leads to oil circuit 1-2 and hydraulic cylinder
Two-way oil circuit 1-3, hydraulic cylinder oil inlet（1-1）Positioned at cylinder body（1）Side wall, the logical oil of hydraulic cylinder oil inlet 1-1, hydraulic cylinder first
Road 1-2 and hydraulic cylinder second lead to oil circuit 1-3 and are connected inside cylinder body 1, form " L " type path；The upper end cover 3 is by Method for Installation
Blue 3-1, cylinder 3-2 and upper cover plate 3-3 are constituted, and mounting flange 3-1, cylinder 3-2 and upper cover plate 3-3 are welded into one from bottom to up
Overall upper end cover 3, the left lower of the cylinder 3-2 offers the second screwed hole 3-7 for extending radially through cylinder, cylinder 3-2
Right upper portion offer the first screwed hole 3-4 for extending radially through cylinder, the lower right side of cylinder 3-2 is welded with drain line 3-5,
The 3rd screwed hole 3-6 for axially penetrating through is offered inside drain line 3-5；The oil tube bracket 18 carries central through hole, oil pipe branch
Frame 18 is fixedly mounted on the left side central portion of cylinder 3-2；Hollow screw first is offered inside the hollow screw 16 and leads to oil circuit 16-
2 and hollow screw second lead to oil circuit 16-1；Annular oil cavity 17-1 and the logical oil of articulated joint are offered inside the articulated joint 17
Road 17-2, the logical oil circuit 17-2 and annular oil cavity 17-1 of articulated joint is interconnected；The lower end of the oil pipe 11 and articulated joint 17
Upper end sealing welding it is integral, the welding body of oil pipe 11 and articulated joint 17 is inserted and by oil tube bracket 18 from the top down
Central through hole, hollow screw 16 is inserted and by the centre bore of articulated joint 17, is screwed into the second screwed hole 3-7 of cylinder 3-2,
Articulated joint 17 is installed along with the left side of cylinder 3-2, hollow screw 16, articulated joint 17, a left side of cylinder 3-2 together with oil pipe 11
Corresponding sealing is installed between the outer wall of side, also, the second screwed hole 3-7, hollow screw first lead to oil circuit 16-2, hollow screw
The endoporus of the second logical oil circuit 16-1, annular oil cavity 17-1, the logical oil circuit 17-2 of articulated joint and oil pipe 11 is interconnected；The liquid level
Sensor 19 is arranged on the upper end of oil pipe 11, and can sense the position of the inner fluid liquid level of oil pipe 11；The air cleaner 10
In the first screwed hole 3-4 of cylinder 3-2 right upper portions；The plug 9 is arranged on the right-hand member of drain line 3-5；The work
The circumference of plug 4 is provided with the sealing of piston first 7 and the sealing of piston second 8；The piston 4 and piston rod 5 are combined into one, and pacify
Mounted in the inside of cylinder body 1, piston 4 can be in cylinder body 1 together with piston rod 5, the sealing of piston first 7 and the sealing of piston second 8
Portion moves up and down；The spring 6 is sleeved on piston rod 5；The upper end cover 3 is securedly mounted to the upper of cylinder body 1 by screw 2
End, is provided with sealing gasket 13 between upper end cover 3 and cylinder body 1, piston rod 5 is passed from the upper cover plate 3-3 centre bores of upper end cover 3, bullet
The lower end of spring 6 pushes against the upper surface of piston 4, and the upper end of spring 6 pushes against the lower surface of upper cover plate 3-3, the lower surface and cylinder of piston 4
Hydraulic cylinder cavity of resorption 12, the upper surface of piston 4 and the inner upper and cylinder of cylinder body 1 are formed between the U shape lower inside of body 1
Hydraulic cylinder epicoele 15 is formed between the inside of body 3-2, in the presence of spring 6, its original position is in for piston 4 and piston rod 5
The inside bottom of cylinder body 1.
When high-voltage oil liquid by hydraulic cylinder oil inlet 1-1, hydraulic cylinder first leads to oil circuit 1-2 and hydraulic cylinder second leads to oil circuit 1-
3, into hydraulic cylinder cavity of resorption 12, act on the lower surface of piston 4, overcome the active force of spring 6, promote piston 4 and piston rod 5 to
Upper ejection, acts on outer load, if the sealing of piston first 7 and the sealing of piston second about 8 have micro-leakage, the oil of leakage
Liquid seals 7 and the sealing of piston second 8 by piston first, from bottom to top, into hydraulic cylinder epicoele 15, gets off for a long time, hydraulic pressure
The fluid of cylinder epicoele 15 is progressively gathered, and fluid liquid level constantly rises, and when fluid liquid level is higher than the second screwed hole 3-7, fluid leads to
Cross the second screwed hole 3-7, hollow screw first lead to oil circuit 16-2, hollow screw second lead to oil circuit 16-1, annular oil cavity 17-1, hinge
The logical oil circuit 17-2 of joint enters the endoporus of oil pipe 11, now the liquid level in the liquid level and hydraulic cylinder epicoele 15 in oil pipe 11
It is highly identical, the liquid level position in oil pipe 11 can sense when by liquid level sensor 19, and liquid level position data are transferred to
Ancillary equipment, is shown and is alarmed, and the internal leakage situation of single-action hydraulic cylinder is grasped in time.If in hydraulic cylinder epicoele 15
Liquid level is higher by certain position, and by turning on plug 9, the fluid in release hydraulic cylinder epicoele 15 is prevented in hydraulic cylinder epicoele 15
Liquid level is higher by the first screwed hole 3-4, produces fluid external leakage；After the oil liquid pressure of hydraulic cylinder cavity of resorption 12 discharges, the work of spring 6
Firmly, piston 4 and piston rod 5 is promoted to return downwards, the fluid of hydraulic cylinder cavity of resorption 12 passes through hydraulic cylinder cavity of resorption 12, hydraulic cylinder first
Logical oil circuit 1-2, the outside oil extractions of hydraulic cylinder oil inlet 1-1.
Preferably, above-mentioned plug 9 can be substituted with stop valve；
Preferably, seal assembly is installed between above-mentioned plug 9 and cylinder 3-2.
The present invention proposes a kind of single-action hydraulic cylinder shown with internal leakage, in the side in single-action hydraulic cylinder inoperative chamber
Liquid level sensor is mounted with, the liquid level position sensed by liquid level sensor, and liquid level position data are transferred to ancillary equipment,
Shown and alarmed, the internal leakage situation of single-action hydraulic cylinder is grasped in time.If liquid level is higher by certain position, by draining the oil
Fluid in pipe release single-action hydraulic cylinder inoperative chamber, prevents fluid external leakage.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of single-action hydraulic cylinder shown with internal leakage, it is characterised in that：Including cylinder body（1）, the first screw（2）, second
Screw（14）, upper end cover（3）, piston（4）, piston rod（5）, spring（6）, piston first seals（7）, piston second seals（8）、
Plug（9）, air cleaner（10）, oil pipe（11）, sealing gasket（13）, hollow screw（16）, articulated joint（17）, oil tube bracket
（18）And liquid level sensor（19）；The cylinder body（1）In U shape, the cylinder body（1）Bottom offer hydraulic cylinder oil-feed
Mouthful（1-1）, hydraulic cylinder first lead to oil circuit（1-2）Lead to oil circuit with hydraulic cylinder second（1-3）, the hydraulic cylinder oil inlet（1-1）Position
In cylinder body（1）Side wall, hydraulic cylinder oil inlet（1-1）, hydraulic cylinder first lead to oil circuit（1-2）Lead to oil circuit with hydraulic cylinder second（1-
3）And cylinder body（1）Inside is connected, and forms " L " type path；The upper end cover（3）By mounting flange（3-1）, cylinder（3-2）With
Upper cover plate（3-3）Composition, mounting flange（3-1）, cylinder（3-2）And upper cover plate（3-3）Entirety is welded into from bottom to up
Upper end cover（3）, the cylinder（3-2）Left lower offer the second screwed hole for extending radially through cylinder（3-7）, cylinder（3-
2）Right upper portion offer the first screwed hole for extending radially through cylinder（3-4）, cylinder（3-2）Lower right side be welded with and drain the oil
Pipe（3-5）, drain line（3-5）Inside offers the 3rd screwed hole for axially penetrating through（3-6）；The oil tube bracket（18）In carrying
Heart through hole, oil tube bracket（18）It is fixedly mounted on cylinder（3-2）Left side central portion；The hollow screw（16）During inside offers
Empty screw first leads to oil circuit（16-2）Lead to oil circuit with hollow screw second（16-1）；The articulated joint（17）Inside offers ring
Shape oil pocket（17-1）Lead to oil circuit with articulated joint（17-2）, articulated joint leads to oil circuit（17-2）And annular oil cavity（17-1）Mutually interconnect
It is logical；The oil pipe（11）Lower end and articulated joint（17）Upper end sealing welding it is integral, oil pipe（11）And articulated joint
（17）Welding body insert from the top down and by oil tube bracket（18）Central through hole, hollow screw（16）Insert and by hinge
Joint（17）Centre bore, be screwed into cylinder（3-2）The second screwed hole（3-7）, articulated joint（17）Together with oil pipe（11）
It is installed along with cylinder（3-2）Left side, hollow screw（16）, articulated joint（17）, cylinder（3-2）Left side outer wall between pacify
Equipped with corresponding sealing, also, the second screwed hole（3-7）, hollow screw first lead to oil circuit（16-2）, the logical oil of hollow screw second
Road（16-1）, annular oil cavity（17-1）, the logical oil circuit of articulated joint（17-2）And oil pipe（11）Endoporus be interconnected；The liquid level
Sensor（19）Installed in oil pipe（11）Upper end, and oil pipe can be sensed（11）The position of inner fluid liquid level；The air mistake
Filter（10）Installed in cylinder（3-2）First screwed hole of right upper portion（3-4）It is interior；The plug（9）Installed in drain line（3-
5）Right-hand member；The piston（4）Circumference piston first be installed seal（7）Sealed with piston second（8）；The piston（4）
And piston rod（5）It is combined into one, and installed in cylinder body（1）Inside, piston（4）Together with piston rod（5）, piston first seals
（7）Sealed with piston second（8）Can be in cylinder body（1）Inside move up and down；The spring（6）It is sleeved on piston rod（5）On；
The upper end cover（3）By screw（2）It is securedly mounted to cylinder body（1）Upper end, upper end cover（3）And cylinder body（1）Between be provided with
Sealing gasket（13）, piston rod（5）From upper end cover（3）Upper cover plate（3-3）Centre bore is passed, spring（6）Lower end push against piston
（4）Upper surface, spring（6）Upper end push against upper cover plate（3-3）Lower surface, piston（4）Lower surface and cylinder body（1）'s
Hydraulic cylinder cavity of resorption is formed between U shape lower inside（12）, piston（4）Upper surface and cylinder body（1）Inner upper and cylinder
Body（3-2）Inside between formed hydraulic cylinder epicoele（15）, piston（4）And piston rod（5）In spring（6）In the presence of, it rises
Beginning, position was in cylinder body（1）Inside bottom.
2. a kind of single-action hydraulic cylinder shown with internal leakage according to claim 1, it is characterised in that：The plug
（9）Substituted with stop valve.
3. a kind of single-action hydraulic cylinder shown with internal leakage according to claim 1, it is characterised in that：The plug
（9）And cylinder（3-2）Between seal assembly is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253382.4A CN106762946B (en) | 2016-12-30 | 2016-12-30 | A kind of single-action hydraulic cylinder shown with internal leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253382.4A CN106762946B (en) | 2016-12-30 | 2016-12-30 | A kind of single-action hydraulic cylinder shown with internal leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762946A true CN106762946A (en) | 2017-05-31 |
| CN106762946B CN106762946B (en) | 2018-05-18 |
Family
ID=58953066
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611253382.4A Active CN106762946B (en) | 2016-12-30 | 2016-12-30 | A kind of single-action hydraulic cylinder shown with internal leakage |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284943A (en) * | 2020-11-12 | 2021-01-29 | 沈阳仪表科学研究院有限公司 | Guarantee mechanism of bellows fatigue test device |
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| CN105465101A (en) * | 2014-10-23 | 2016-04-06 | 徐州重型机械有限公司 | Internal leakage detection equipment and device for hydraulic oil cylinder |
| CN204783957U (en) * | 2015-07-08 | 2015-11-18 | 武汉科技大学 | Embedded pneumatic cylinder of automatic monitoring internal leakage |
| CN105257618A (en) * | 2015-11-10 | 2016-01-20 | 浙江大学 | Closed oil film visualization device capable of measuring leakage of reciprocating sealing piston |
| CN205117896U (en) * | 2015-11-20 | 2016-03-30 | 常州海宏液压设备有限公司 | In -band leak testing's entry driving machine props boots hydraulic cylinder |
| CN205117897U (en) * | 2015-11-20 | 2016-03-30 | 常州海宏液压设备有限公司 | Freeze dryer hydraulic cylinder with leak measurement function a little |
| CN105526210A (en) * | 2016-01-13 | 2016-04-27 | 中南大学 | Method and device for measuring micro inner leakage amount of any stroke position of hydraulic cylinder |
| CN105526210B (en) * | 2016-01-13 | 2017-09-19 | 中南大学 | A kind of small internal leakage measuring method in hydraulic cylinder arbitrary distance of run position and its device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112284943A (en) * | 2020-11-12 | 2021-01-29 | 沈阳仪表科学研究院有限公司 | Guarantee mechanism of bellows fatigue test device |
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