CN109356905A - A kind of hydraulic cylinder with anti-leak function - Google Patents
A kind of hydraulic cylinder with anti-leak function Download PDFInfo
- Publication number
- CN109356905A CN109356905A CN201811469571.4A CN201811469571A CN109356905A CN 109356905 A CN109356905 A CN 109356905A CN 201811469571 A CN201811469571 A CN 201811469571A CN 109356905 A CN109356905 A CN 109356905A
- Authority
- CN
- China
- Prior art keywords
- wall
- bolted
- cylinder
- side outer
- hydraulic cylinder
- 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
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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
-
- 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
- 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
-
- 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
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Actuator (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of hydraulic cylinders with anti-leak function, including cylinder seat, cylinder seat side outer wall has been bolted cylinder barrel, and fixing head has been bolted in cylinder seat other side outer wall, cylinder barrel circumferential inner wall side inner wall is socketed with guide sleeve, and guide sleeve side outer wall is plugged with piston rod, piston has been bolted in piston rod side outer wall, and the outer circumferential walls of piston and the circumferential inner wall of cylinder barrel are slidably connected, guide sleeve side outer wall offers mounting groove, and the inner wall of mounting groove is provided with dustband, the circumferential inner wall of dustband and the outer circumferential walls of piston rod are slidably connected.In the present invention, it is provided with cartridge filter, internal hydraulic oil can be filtered, it prevents from entering sundries in hydraulic oil, avoid relief valve spool damage that hydraulic oil is made directly to leak back towards fuel tank by overflow valve bypass, it ensure that the overflow valve on the second oil return pipe can work normally, the thrust of hydraulic cylinder enable to guarantee.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder more particularly to a kind of hydraulic cylinders with anti-leak function.
Background technique
Hydraulic cylinder is the hydraulic actuator that hydraulic energy is changed into mechanical energy, does straight reciprocating motion.Its structure
Simply, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from it, and do not have drive gap.
But now when hydraulic oil bypasses oil return box through overflow valve.If overflow valve, which enters foul, blocks spool, make overflow
Valve is normally opened, and hydraulic oil can bypass through overflow valve and directly leak back towards fuel tank, and hydraulic cylinder is caused not have oily entrance, if load excessive,
Though the adjusting pressure of overflow valve has reached maximum rating, thrust needed for hydraulic cylinder still cannot get continuous action and it is motionless
Make, the normal operation of work will be will affect in this way, be not easy to staff carry out using.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and the one kind proposed has the function of anti-leak
Hydraulic cylinder, the problem of being put forward with effective solution background technique.
To achieve the goals above, present invention employs following technical solutions:
A kind of hydraulic cylinder with anti-leak function, including cylinder seat, cylinder seat side outer wall have been bolted cylinder barrel,
And fixing head has been bolted in cylinder seat other side outer wall, cylinder barrel circumferential inner wall side inner wall is socketed with guide sleeve, and
Guide sleeve side outer wall is plugged with piston rod, and piston, and the circumference of piston has been bolted in piston rod side outer wall
The circumferential inner wall of outer wall and cylinder barrel is slidably connected, and guide sleeve side outer wall offers mounting groove, and the inner wall of mounting groove is set
It is equipped with dustband, the circumferential inner wall of dustband and the outer circumferential walls of piston rod are slidably connected, and the top exterior walls of the cylinder barrel pass through
It is bolted filtrate housing, and the side outer wall of filtrate housing is plugged with the second oil return pipe, the second oil return pipe is far from filter housing
One end of body extends to the inside of cylinder barrel by cylinder seat.
Preferably, the two sides inner wall of the filtrate housing has been connected by screw to gag lever post, and the top of two gag lever posts
Portion's outer wall is placed with cartridge filter.
Preferably, the top exterior walls of the filtrate housing are pasted with seal washer, and the top exterior walls of filtrate housing pass through
It is bolted end cap, the top exterior walls of end cap are plugged with the first oil return pipe.
Preferably, fixed link, and the bottom of two fixed links has been bolted in the two sides of the bottom outer wall of the end cap
Portion's outer wall is connected by screw to the same horizontal positioned annulus.
Preferably, mounting blocks have been bolted in the two sides of the bottom outer wall of the cylinder barrel, and outside the bottom of mounting blocks
Wall offers sliding groove.
Preferably, the inside of two sliding grooves is rotatably connected to sliding bar, and the side that two sliding bars are opposite
The same horizontal positioned connecting rod is bolted in outer wall.
Preferably, output connecting head has been bolted in piston rod other side outer wall.
Compared with prior art, the invention has the benefit that
1, by being provided with cartridge filter, internal hydraulic oil can be filtered, prevents from entering sundries in hydraulic oil, avoids overflowing
Stream valve core damage makes hydraulic oil directly leak back towards fuel tank by overflow valve bypass, ensure that the overflow valve on the second oil return pipe
It can work normally, the thrust of hydraulic cylinder is enable to guarantee, improve the job stability of hydraulic cylinder, reach good
Anti-leak function, convenient for staff carry out using.
2, by being provided with end cap, fixed link and annulus, it can make cartridge filter is stable to be filtered in filtrate housing
Work, and end cap is bolted, and carries out disassembly, cleaning cartridge filter convenient for staff, improves work efficiency.
3, by being provided with mounting blocks, sliding groove, sliding bar and connecting rod, connecting rod can be made with a suitable position
It is fixed on hydraulic cylinder, is then being fixed on the external world, and the setting of connecting rod, is improving the mounting stability of hydraulic cylinder,
Improve its use scope.
Detailed description of the invention
Fig. 1 is a kind of schematic cross-sectional view of the hydraulic cylinder with anti-leak function proposed by the present invention；
Fig. 2 is a kind of partial enlargement structural representation of the hydraulic cylinder with anti-leak function proposed by the present invention；
Fig. 3 is a kind of schematic view of the front view of the hydraulic cylinder with anti-leak function proposed by the present invention.
In figure: 1 fixing head, 2 cylinder seats, 3 mounting blocks, 4 sliding bars, 5 connecting rods, 6 sliding grooves, 7 dustbands, 8 output connections
Head, 9 piston rods, 10 guide sleeves, 11 filtrate housing, 12 cartridge filters, 13 first oil return pipes, 14 end caps, 15 pistons, 16 second oil returns
Pipe, 17 gag lever posts, 18 annulus, 19 seal washers, 20 fixed links, 21 cylinder barrels.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of hydraulic cylinder with anti-leak function, including cylinder seat 2,2 side outer wall of cylinder seat pass through spiral shell
Bolt is fixed with cylinder barrel 21, and fixing head 1,21 circumferential inner wall side inner wall of cylinder barrel has been bolted in 2 other side outer wall of cylinder seat
It is socketed with guide sleeve 10, and 10 side outer wall of guide sleeve is plugged with piston rod 9,9 side outer wall of piston rod has been bolted
Piston 15, and the outer circumferential walls of piston 15 and the circumferential inner wall of cylinder barrel 21 are slidably connected, 10 side outer wall of guide sleeve offers peace
Tankage, and the inner wall of mounting groove is provided with dustband 7, the circumferential inner wall of dustband 7 and the outer circumferential walls of piston rod 9 are slided and are connected
It connects, filtrate housing 11 has been bolted in the top exterior walls of cylinder barrel 21, and the side outer wall of filtrate housing 11 is plugged with second
Oil return pipe 16, the one end of the second oil return pipe 16 far from filtrate housing 11 extend to the inside of cylinder barrel 21, the second oil return by cylinder seat 2
The top exterior walls of pipe 16 have been connected by screw to overflow valve.
In the present invention, the two sides inner wall of filtrate housing 11 has been connected by screw to gag lever post 17, and two gag lever posts 17
Top exterior walls be placed with cartridge filter 12, the top exterior walls of filtrate housing 11 are pasted with seal washer 19, and filtrate housing 11
End cap 14 has been bolted in top exterior walls, and the top exterior walls of end cap 14 are plugged with the first oil return pipe 13, the bottom of end cap 14
Two sides outer wall has been bolted fixed link 20, and the bottom outer wall of two fixed links 20 be connected by screw to it is same
Horizontal positioned annulus 18, annulus 18 are located at the surface of cartridge filter 12, and the two sides of the bottom outer wall of cylinder barrel 21 is connected by bolt
Mounting blocks 3 are connected to, and the bottom outer wall of mounting blocks 3 offers sliding groove 6, the inside of two sliding grooves 6 is rotatably connected to
Sliding bar 4, and the same horizontal positioned connecting rod 5 is bolted in the opposite side outer wall of two sliding bars 4, installs
Block 3 is connected by bolt with sliding bar 4, and output connecting head 8 has been bolted in 9 other side outer wall of piston rod, and exports
Connector 8 and 1 outer circumferential walls of fixing head are socketed with proof rubber set.
Working principle: the cartridge filter 12 cleaned out is placed on the gag lever post 17 of filtrate housing 11 before work, filter housing
11 top exterior walls of body are pasted with seal washer 19, and then end cap 14 is bolted in filtrate housing 11, in fixed link 20
Annulus 18 cartridge filter 12 is fixed, prevent from moving in its work, then the hydraulic oil of 12 pairs of inside of cartridge filter is filtered,
The overflow valve for having on sundries and then clogging second oil return pipe 16 in hydraulic oil is prevented, keeps overflow valve normally opened, hydraulic oil can be through overflowing
It flows valve and bypasses leakage stream oil return box, hydraulic cylinder is caused not have oily entrance, cause the thrust of hydraulic cylinder insufficient, staff may be used also
With after hydraulic cylinder is stably connected with, then pass through the installation of connecting rod 5, further hydraulic cylinder is fixed, is effectively mentioned
The stability of high equipment.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of hydraulic cylinder with anti-leak function, including cylinder seat (2), which is characterized in that cylinder seat (2) side outer wall
It has been bolted cylinder barrel (21), and fixing head (1), the cylinder barrel has been bolted in cylinder seat (2) other side outer wall
(21) circumferential inner wall side inner wall is socketed with guide sleeve (10), and guide sleeve (10) side outer wall is plugged with piston rod (9), described
Piston rod (9) side outer wall has been bolted piston (15), and the circumference of the outer circumferential walls of piston (15) and cylinder barrel (21)
Inner wall is slidably connected, and guide sleeve (10) side outer wall offers mounting groove, and the inner wall of mounting groove is provided with dustband
(7), the circumferential inner wall of dustband (7) and the outer circumferential walls of piston rod (9) are slidably connected, and the top exterior walls of the cylinder barrel (21) are logical
It crosses and has been bolted filtrate housing (11), and the side outer wall of filtrate housing (11) is plugged with the second oil return pipe (16), second time
The one end of oil pipe (16) far from filtrate housing (11) extends to the inside of cylinder barrel (21) by cylinder seat (2).
2. a kind of hydraulic cylinder with anti-leak function according to claim 1, which is characterized in that the filtrate housing
(11) two sides inner wall has been connected by screw to gag lever post (17), and the top exterior walls of two gag lever posts (17) are placed with filtering
Cylinder (12).
3. a kind of hydraulic cylinder with anti-leak function according to claim 1, which is characterized in that the filtrate housing
(11) top exterior walls are pasted with seal washer (19), and end cap has been bolted in the top exterior walls of filtrate housing (11)
(14), the top exterior walls of end cap (14) are plugged with the first oil return pipe (13).
4. a kind of hydraulic cylinder with anti-leak function according to claim 3, which is characterized in that the end cap (14)
Two sides of the bottom outer wall be bolted fixed link (20), and the bottom outer wall of two fixed links (20) pass through screw connect
It is connected to the same horizontal positioned annulus (18).
5. a kind of hydraulic cylinder with anti-leak function according to claim 1, which is characterized in that the cylinder barrel (21)
Two sides of the bottom outer wall be bolted mounting blocks (3), and the bottom outer wall of mounting blocks (3) offers sliding groove
(6).
6. a kind of hydraulic cylinder with anti-leak function according to claim 5, which is characterized in that two slidings
The inside of slot (6) is rotatably connected to sliding bar (4), and two opposite side outer walls of sliding bar (4) have been bolted
The same horizontal positioned connecting rod (5).
7. a kind of hydraulic cylinder with anti-leak function according to claim 1, which is characterized in that the piston rod
(9) output connecting head (8) have been bolted in other side outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469571.4A CN109356905A (en) | 2018-11-28 | 2018-11-28 | A kind of hydraulic cylinder with anti-leak function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469571.4A CN109356905A (en) | 2018-11-28 | 2018-11-28 | A kind of hydraulic cylinder with anti-leak function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356905A true CN109356905A (en) | 2019-02-19 |
Family
ID=65330987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469571.4A Pending CN109356905A (en) | 2018-11-28 | 2018-11-28 | A kind of hydraulic cylinder with anti-leak function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356905A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094383A (en) * | 2019-03-14 | 2019-08-06 | 江苏顺达机械设备有限公司 | A kind of antiwear energy-saving hydraulic drive apparatus with long service life |
| CN110821917A (en) * | 2019-11-14 | 2020-02-21 | 徐州乐泰机电科技有限公司 | Oil leakage self-checking self-plugging integrated hydraulic oil cylinder of oil filling port |
| CN111980992A (en) * | 2020-08-17 | 2020-11-24 | 刘凯强 | Hydraulic oil cylinder filtering device of excavator |
| CN114263649A (en) * | 2021-12-27 | 2022-04-01 | 无锡申佳液压科技有限公司 | Hydraulic oil cylinder with protective structure and use method |
-
2018
- 2018-11-28 CN CN201811469571.4A patent/CN109356905A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094383A (en) * | 2019-03-14 | 2019-08-06 | 江苏顺达机械设备有限公司 | A kind of antiwear energy-saving hydraulic drive apparatus with long service life |
| CN110821917A (en) * | 2019-11-14 | 2020-02-21 | 徐州乐泰机电科技有限公司 | Oil leakage self-checking self-plugging integrated hydraulic oil cylinder of oil filling port |
| CN111980992A (en) * | 2020-08-17 | 2020-11-24 | 刘凯强 | Hydraulic oil cylinder filtering device of excavator |
| CN114263649A (en) * | 2021-12-27 | 2022-04-01 | 无锡申佳液压科技有限公司 | Hydraulic oil cylinder with protective structure and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190219 |
|
| WD01 | Invention patent application deemed withdrawn after publication |