CN116085339A - Oil leakage prevention hydraulic cylinder - Google Patents
Oil leakage prevention hydraulic cylinder Download PDFInfo
- Publication number
- CN116085339A CN116085339A CN202211465493.7A CN202211465493A CN116085339A CN 116085339 A CN116085339 A CN 116085339A CN 202211465493 A CN202211465493 A CN 202211465493A CN 116085339 A CN116085339 A CN 116085339A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- sealing gasket
- wall
- sealing
- piston rod
- 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
Images
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
- F15B15/1457—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
- 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
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention belongs to the technical field of hydraulic cylinders, and discloses an oil leakage preventing hydraulic cylinder which comprises a hydraulic cylinder main body, wherein a first flange plate is fixedly arranged on one side of the hydraulic cylinder main body, and a piston rod is movably sleeved in the hydraulic cylinder main body. According to the invention, the purpose of oil leakage prevention of the hydraulic cylinder is achieved by arranging the first sealing gasket, the supporting ring, the communication hole and the like, the pressure in the hydraulic cylinder main body is increased in the process of filling oil into the hydraulic cylinder main body, the first sealing gasket is extruded by hydraulic oil in the hydraulic cylinder main body, the inner wall and the outer wall of the first sealing gasket are respectively compressed, the contact area between the inner wall of the first sealing gasket and the outside of the piston rod is increased, the sealing effect between the hydraulic cylinder main body and the piston rod is better, the second sealing is carried out between the hydraulic cylinder main body and the piston rod by the second sealing gasket and the first sealing gasket, the oil leakage phenomenon caused by long-time opening and closing of the hydraulic cylinder is avoided, and the oil leakage prevention effect of the hydraulic cylinder is achieved.
Description
Technical Field
The invention belongs to the technical field of hydraulic cylinders, and particularly relates to an oil leakage preventing hydraulic cylinder.
Background
The veneer press series machine is suitable for neutral furniture factories or small-sized artificial board secondary processing professional veneer factories, is used for hot-press bonding furniture plates, building partitions, wooden doors and various artificial boards, and a hydraulic cylinder is used as a core part of a hydraulic system in the hot-press veneer machine and bears impact pressure at a rapid opening and closing speed, so that the requirements on the structural quality and sealing performance of the hydraulic cylinder are higher.
The Chinese patent published as CN202010625304.2 discloses a leak-proof sealing piece for a hydraulic cylinder, and the problem is solved by the patent: the existing hydraulic oil cylinder leaks oil seriously, so that economic loss and energy waste are caused. The leakage-proof sealing piece for the hydraulic cylinder in life at present is all installed inside the hydraulic cylinder, the whole hydraulic cylinder needs to be detached for installation, mechanical damage is very easy to cause, dust enters the hydraulic cylinder, and the service life of the hydraulic cylinder is reduced.
At present, most wood processing veneer presses adopt a more conventional plunger type hydraulic cylinder, the piston type hydraulic cylinder can be divided into a single-rod type hydraulic cylinder and a double-rod type hydraulic cylinder, in the single-acting type hydraulic cylinder, pressure oil only supplies one cavity of the hydraulic cylinder, the hydraulic pressure is used for enabling the cylinder to move in one direction, the opposite direction is achieved by external force such as spring force, dead weight or external load, and the like, the hydraulic cylinder is frequently and rapidly opened and closed in the use process, the friction force between a working piston rod and a cylinder body is increased during long-time rapid opening and closing, the gap between the piston rod and the cylinder body is increased, oil leakage phenomenon occurs, the working efficiency of the hydraulic cylinder of a light person is reduced, the performance of the whole hot pressing veneer machine is reduced by a heavy person, and the whole hot pressing veneer machine cannot work at the same time; the present application is directed to a single-acting hydraulic cylinder.
Disclosure of Invention
(1) Technical problem to be solved
In order to solve the problems in the prior art, the invention provides the oil leakage prevention hydraulic cylinder, which is in butt joint with the hydraulic cylinder main body through the oil injection pump, and is used for injecting oil into the hydraulic cylinder main body, the piston rod is pushed out through hydraulic oil injected into the hydraulic cylinder main body, the pressure in the hydraulic cylinder main body is increased in the process of injecting oil into the hydraulic cylinder main body, the first sealing gasket is extruded through the hydraulic oil in the hydraulic cylinder main body at the moment, the inner wall and the outer wall of the first sealing gasket are respectively compressed, the contact area between the inner wall of the first sealing gasket and the outer part of the piston rod is increased, the sealing effect between the hydraulic cylinder main body and the piston rod is better, the second sealing is carried out between the hydraulic cylinder main body and the piston rod through the second sealing gasket and the first sealing gasket, the oil leakage phenomenon is avoided when the hydraulic cylinder is opened and closed for a long time, and the oil leakage prevention advantage of the hydraulic cylinder is achieved.
(2) Technical proposal
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an oil leak protection hydraulic cylinder, includes the pneumatic cylinder main part, one side fixed mounting of pneumatic cylinder main part has first ring flange, the inside activity of pneumatic cylinder main part has cup jointed the piston rod, one side fixed mounting of piston rod has the connecting axle, the opposite side fixed mounting of piston rod has the transmission piece, the opposite side fixed mounting of first ring flange has the protection storehouse, one side fixed mounting of protection storehouse has the dust ring, one side fixed mounting of dust ring has the cleaning board, one side fixed mounting of the inside of pneumatic cylinder main part has the supporting ring, one side fixed mounting of supporting ring has first sealing gasket, the opposite side fixed mounting of supporting ring has the second sealing gasket, the communication hole has been seted up to the surperficial annular equiangular degree of supporting ring, the inner wall fixed mounting of dust ring has the dust ring, the middle part fixed mounting of supporting ring inner wall has the second sealing ring, the left and right sides of supporting ring inner wall respectively fixed mounting has first sealing ring.
Preferably, the opposite side fixed mounting of pneumatic cylinder main part has the second ring flange, the four corners of second ring flange one side is fixed mounting respectively has the bracing piece, the opposite side fixed mounting of second ring flange has the oil inlet, the outside equidistance of oil inlet has seted up the joint groove, one side fixed mounting of oil inlet has the sealing washer.
Preferably, the second sealing gasket is located inside the protection bin, the inner wall of the second sealing gasket is in contact with the outer portion of the piston rod, the outer wall of the second sealing gasket is in contact with the inner wall of the protection bin, and one side of the second sealing gasket is made of hard rubber materials.
Preferably, the second sealing gasket is in a shape of C, the outer wall and the inner wall of the second sealing gasket are made of soft silica gel materials, one side of the second sealing gasket is fixedly installed and connected with one side of the supporting ring, and the second sealing gasket is positioned outside the communication hole.
Preferably, the other side of the first sealing pad is made of hard rubber materials, the outer wall and the inner wall of the first sealing pad are made of soft silica gel materials, and the inner parts of the first sealing pad and the second sealing pad are of sealing structures.
Preferably, the inner wall of the first sealing pad is in contact with the outside of the piston rod, and the outer wall of the first sealing pad is in contact with the inner wall of the hydraulic cylinder main body.
Preferably, the first sealing gasket is located inside the hydraulic cylinder main body, the first sealing gasket is fixedly connected with the other side of the support ring, and the first sealing gasket is sleeved outside the communication hole.
Preferably, the first sealing pad is communicated with the inside of the second sealing pad, the piston rod penetrates through the inside of the supporting ring, and the supporting ring is in contact with the inside of the piston rod.
Preferably, one side of the cleaning plate is arc-shaped, the inner wall of the cleaning plate is in contact with the outer wall of the piston rod, and the dustproof ring, the second sealing ring and the first sealing ring are made of rubber materials.
Preferably, the oil inlet is communicated with the inside of the hydraulic cylinder main body, and four sides of the second flange plate and the first flange plate are respectively provided with a limiting hole.
(3) The beneficial effects are that:
according to the invention, the purpose of oil leakage prevention of the hydraulic cylinder is achieved by arranging the first sealing gasket, the supporting ring, the communication hole and the like, the oil injection pump is used for butting the hydraulic cylinder main body, oil is injected into the hydraulic cylinder main body, the piston rod is pushed out by hydraulic oil injected into the hydraulic cylinder main body, the pressure in the hydraulic cylinder main body is increased in the process of injecting oil into the hydraulic cylinder main body, at the moment, the first sealing gasket is extruded by the hydraulic oil in the hydraulic cylinder main body, the inner wall and the outer wall of the first sealing gasket are respectively compressed, the contact area between the inner wall of the first sealing gasket and the outer part of the piston rod is increased, so that the sealing effect between the hydraulic cylinder main body and the piston rod is better, and the second sealing gasket is used for sealing the hydraulic cylinder main body and the piston rod, so that the oil leakage phenomenon of the hydraulic cylinder is avoided when the hydraulic cylinder is opened and closed for a long time, and the oil leakage prevention effect of the hydraulic cylinder is achieved;
the invention achieves the aim of cleaning dust on the surface of the piston rod by arranging the second sealing gasket, the protection bin, the cleaning plate and the like, the piston rod is recovered through reverse acting force after the piston rod is completely pushed out, at this time, the hydraulic oil in the hydraulic cylinder main body is discharged through the oil inlet, the dust impurities on the outer wall of the piston rod are scraped through the cleaning plate in the recovery process of the piston rod, meanwhile, the outer wall of the piston rod is contacted with the inner wall of the second flange plate in the recovery process of the piston rod, the piston rod drives the second flange plate to shrink, and meanwhile, when the hydraulic oil in the hydraulic cylinder main body is discharged, the first sealing gasket is stretched, the gas in the second sealing gasket enters the first sealing gasket, the contact area between the inner wall and the outer part of the piston rod is increased through the compression of the second sealing gasket, the tiny dust outside the piston rod is cleaned through the inner wall of the second sealing gasket, the dust is prevented from entering the inner part of the hydraulic cylinder main body, the service life of the hydraulic cylinder main body is prolonged, and the effect of cleaning dust on the surface of the piston rod is achieved;
according to the invention, the purpose of convenient installation of the hydraulic cylinder is achieved by arranging the oil inlet, the clamping groove, the sealing ring and the like, the hydraulic cylinder main body is installed and fixed on the veneering press through the limiting holes on four sides of the first flange plate and the second flange plate, the oil injection pump is sleeved outside the oil inlet and is fixedly sealed through the clamping groove, and the oil injection pump is used for injecting oil into the hydraulic cylinder main body, so that the piston rod is pushed out, and the effect of convenient installation of the hydraulic cylinder is achieved.
Drawings
FIG. 1 is a schematic view of the overall appearance of the present invention;
FIG. 2 is a schematic view of a side view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is an enlarged schematic view of the portion A of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged schematic view of the portion B of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of an assembly of the present invention;
FIG. 7 is a schematic view of a partial assembly of the present invention;
FIG. 8 is a schematic view of the support ring of the present invention.
In the figure: 1. a hydraulic cylinder main body; 2. a support rod; 3. a first flange; 4. a second flange; 5. a protective bin; 6. a piston rod; 7. a dust-proof ring; 8. a connecting shaft; 9. a support ring; 10. a communication hole; 11. a first seal ring; 12. a second seal ring; 13. a first gasket; 14. a second gasket; 15. a cleaning plate; 16. a dust ring; 17. an oil inlet; 18. a clamping groove; 19. a seal ring; 20. and a transmission block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, the invention provides an oil leakage prevention hydraulic cylinder, which comprises a hydraulic cylinder main body 1, wherein a first flange plate 3 is fixedly arranged on one side of the hydraulic cylinder main body 1, a piston rod 6 is movably sleeved in the hydraulic cylinder main body 1, a connecting shaft 8 is fixedly arranged on one side of the piston rod 6, a transmission block 20 is fixedly arranged on the other side of the piston rod 6, a protection bin 5 is fixedly arranged on the other side of the first flange plate 3, a dust-proof ring 7 is fixedly arranged on one side of the protection bin 5, a cleaning plate 15 is fixedly arranged on one side of the dust-proof ring 7, a supporting ring 9 is fixedly arranged on one side of the inside of the hydraulic cylinder main body 1, a first sealing gasket 13 is fixedly arranged on one side of the supporting ring 9, a second sealing gasket 14 is fixedly arranged on the other side of the supporting ring 9, a communication hole 10 is formed in the surface annular equal angle of the supporting ring 9, a dust-proof ring 16 is fixedly arranged on the inner wall of the supporting ring 7, a second sealing ring 12 is fixedly arranged in the middle of the inner wall of the supporting ring 9, and first sealing rings 11 are fixedly arranged at the left and right ends of the inner wall of the supporting ring 9 respectively; the oil injection end of the oil injection pump is abutted with the oil inlet 17, the oil is injected into the hydraulic cylinder body 1 through the oil injection pump, the hydraulic oil is injected into the hydraulic cylinder body 1, the piston rod 6 is pushed out under the acting force of the hydraulic oil, the hydraulic pressure in the hydraulic cylinder body 1 is increased in the process of injecting the oil into the hydraulic cylinder body 1, the first sealing gasket 13 is extruded through the hydraulic oil in the hydraulic cylinder body 1 at the moment, the inner wall and the outer wall of the first sealing gasket 13 are respectively compressed, the contact area with the outer part of the piston rod 6 is increased through the inner wall of the first sealing gasket 13, the sealing effect between the hydraulic cylinder body 1 and the piston rod 6 is better, the hydraulic cylinder body 1 and the piston rod 6 are secondarily sealed through the second sealing ring 12 and the first sealing ring 11, the oil leakage phenomenon is avoided when the hydraulic cylinder is opened and closed for a long time, and the service life of the hydraulic cylinder is prolonged.
As shown in fig. 1, 2, 3 and 5, a second flange 4 is fixedly arranged on the other side of the hydraulic cylinder main body 1, supporting rods 2 are fixedly arranged at four corners of one side of the second flange 4 respectively, an oil inlet 17 is fixedly arranged on the other side of the second flange 4, clamping grooves 18 are formed in the oil inlet 17 at equal intervals, and a sealing ring 19 is fixedly arranged on one side of the oil inlet 17; the hydraulic cylinder main body 1 is installed and fixed through the first flange plate 3 and the second flange plate 4, the oil injection pump is in butt joint with the oil inlet 17, the sealing is carried out through the clamping groove 18, the looseness of the butt joint is avoided, the phenomenon that the connecting pipe falls down due to the increase of the internal hydraulic pressure of the hydraulic cylinder main body 1 is prevented, the internal of the hydraulic cylinder main body 1 is sealed through the sealing ring 19, and the phenomenon of oil seepage is avoided when long-time working occurs.
As shown in fig. 3, 4, 6 and 7, the other side of the first sealing pad 13 is made of hard rubber material, the outer wall and the inner wall of the first sealing pad 13 are made of soft silica gel material, the interiors of the first sealing pad 13 and the second sealing pad 14 are of sealing structures, the inner wall of the first sealing pad 13 is in contact with the exterior of the piston rod 6, the outer wall of the first sealing pad 13 is in contact with the inner wall of the hydraulic cylinder body 1, the first sealing pad 13 is positioned in the hydraulic cylinder body 1, the first sealing pad 13 is fixedly connected with the other side of the supporting ring 9, the first sealing pad 13 is sleeved outside the communication hole 10, the interiors of the first sealing pad 13 and the second sealing pad 14 are communicated, the piston rod 6 penetrates through the interior of the supporting ring 9, and the supporting ring 9 is in contact with the interior of the piston rod 6; the oil injection pump is used for butting the oil inlet 17, the oil is injected into the hydraulic cylinder main body 1 through the oil injection pump, the oil pressure in the hydraulic cylinder main body 1 is increased to push out the piston rod 6, meanwhile, the first sealing gasket 13 is extruded, gas in the first sealing gasket 13 enters the second sealing gasket 14 through the communication hole 10, the inner wall and the outer part of the first sealing gasket 13 are compressed, the contact area between the inner wall of the first sealing gasket 13 and the outer part of the piston rod 6 is increased, the sealing pressure is increased, the wear resistance of the first sealing gasket 13 is improved, the sealing performance is not reduced due to long-time friction, and one side of the first sealing gasket 13 is made of hard silica gel, so that the outer part of the first sealing gasket 13 is pressurized and cannot deform.
As shown in fig. 3, 4, 6 and 7, the second sealing gasket 14 is located inside the protection cabin 5, the inner wall of the second sealing gasket 14 contacts with the outside of the piston rod 6, the outer wall of the second sealing gasket 14 contacts with the inner wall of the protection cabin 5, one side of the second sealing gasket 14 is made of hard rubber material, the second sealing gasket 14 is in a shape of 'C', the outer wall and the inner wall of the second sealing gasket 14 are both made of soft silica gel material, one side of the supporting ring 9 of one side of the second sealing gasket 14 is fixedly installed and connected, and the second sealing gasket 14 is located outside the communication hole 10; the inside of the hydraulic cylinder main body 1 is filled with oil through the oil filling pump, the inside pressure of the hydraulic cylinder main body 1 injects the gas inside the first sealing gasket 13 into the inside of the second sealing gasket 14, after the piston rod 6 is pushed out to a preset position, the piston rod 6 is recycled through external force, at this time, the hydraulic oil inside the hydraulic cylinder main body 1 is discharged through the oil inlet 17, the inside pressure of the hydraulic cylinder main body 1 is reduced, the first sealing gasket 13 is stretched, meanwhile, in the recycling process of the piston rod 6, the outer wall of the piston rod 6 is contacted with the second sealing gasket 14 and drives the second sealing gasket 14, the second sealing gasket 14 is compressed, the gas inside the second sealing gasket 14 enters the inside of the first sealing gasket 13 through the communication hole 10, and because the inner wall and the outer wall of the second sealing gasket 14 are made of soft silica gel materials, the pressure of the inner wall contacting the outer wall of the piston rod 6 through the protection bin 5 is increased, fine dust and impurities of the outer wall of the piston rod 6 are cleaned through the second sealing gasket 14, and normal use of the hydraulic cylinder main body 1 is prevented from being influenced.
As shown in fig. 4, 6, 7 and 8, one side of the cleaning plate 15 is arc-shaped, the inner wall of the cleaning plate 15 is contacted with the outer wall of the piston rod 6, and the dust ring 16, the second sealing ring 12 and the first sealing ring 11 are made of rubber materials; through the inside injection hydraulic oil to pneumatic cylinder main part 1, release the back with piston rod 6, retrieve piston rod 6 through external force, the in-process piston rod 6 that retrieves at piston rod 6 will pass through the inside of dust ring 7, clear up the impurity of piston rod 6 outer wall through cleaning board 15, clear up the outside tiny impurity of piston rod 6 through dust ring 16, increase the stretchability of dust ring 16 through the rubber material of dust ring 16, make dust ring 16 and the outer wall contact of piston rod 6 inseparabler, avoid the dust to get into in the clearance between pneumatic cylinder main part 1 and the piston rod 6.
As shown in fig. 1, 2 and 5, the oil inlet 17 is communicated with the inside of the hydraulic cylinder main body 1, and four sides of the second flange 4 and the first flange 3 are respectively provided with a limiting hole; the hydraulic cylinder main body 1 is installed and fixed through the limiting holes on four sides of the first flange plate 3 and the second flange plate 4, the oil filling pipe of the oil filling pump is abutted with the oil inlet 17, and the limiting is carried out through the clamping groove 18, so that the pressure increase in the hydraulic cylinder main body 1 is avoided, and the abutting pipe is prevented from falling off.
The working principle and the using flow of the invention are as follows:
the hydraulic cylinder main body 1 is installed and fixed on the veneering press through the limit holes on four sides of the first flange plate 3 and the second flange plate 4, the oil injection pump is sleeved outside the oil inlet 17 and is fixedly sealed through the clamping groove 18, oil is injected into the hydraulic cylinder main body 1 through the oil injection pump, the piston rod 6 is pushed out through hydraulic oil injected into the hydraulic cylinder main body 1, the hydraulic pressure in the hydraulic cylinder main body 1 is increased in the process of injecting oil into the hydraulic cylinder main body 1, at the moment, the first sealing gasket 13 is extruded through the hydraulic oil in the hydraulic cylinder main body 1, the inner wall and the outer wall of the first sealing gasket 13 are respectively compressed, the contact area between the inner wall of the first sealing gasket 13 and the outer part of the piston rod 6 is increased, the sealing effect between the hydraulic cylinder main body 1 and the piston rod 6 is better, the second sealing is carried out between the hydraulic cylinder main body 1 and the piston rod 6 through the second sealing ring 12 and the first sealing ring 11, and the oil leakage phenomenon is avoided when the hydraulic cylinder is opened and closed for a long time;
after the piston rod 6 is completely pushed out, the piston rod 6 is recovered through reverse acting force, at this moment, hydraulic oil in the hydraulic cylinder main body 1 is discharged through the oil inlet 17, meanwhile, the piston rod 6 is used for scraping dust impurities on the outer wall of the piston rod 6 through the cleaning plate 15 in the recovery process, secondary cleaning is carried out on fine impurities outside the piston rod 6 through the dust ring 16, meanwhile, the outer wall of the piston rod 6 is contacted with the inner wall of the second flange 4 in the recovery process, the second flange 4 is driven to shrink through the piston rod 6, meanwhile, when hydraulic oil in the hydraulic cylinder main body 1 is discharged, the first sealing gasket 13 is stretched, gas in the second sealing gasket 14 is compressed and added into the first sealing gasket 13, the contact area between the inner wall and the outer part of the piston rod 6 is increased through the second sealing gasket 14, dust outside the piston rod 6 is cleaned through the inner wall of the second sealing gasket 14, the dust is prevented from entering the inner part of the hydraulic cylinder main body 1, and the service life of the hydraulic cylinder main body 1 is prolonged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an leak protection oil hydraulic cylinder, includes pneumatic cylinder main part (1), its characterized in that: one side fixed mounting of pneumatic cylinder main part (1) has first ring flange (3), the inside movable sleeve of pneumatic cylinder main part (1) has piston rod (6), one side fixed mounting of piston rod (6) has connecting axle (8), the opposite side fixed mounting of piston rod (6) has transmission piece (20), the opposite side fixed mounting of first ring flange (3) has protection storehouse (5), one side fixed mounting of protection storehouse (5) has dust collar (7), one side fixed mounting of dust collar (7) has cleaning plate (15), one side fixed mounting of the inside of pneumatic cylinder main part (1) has supporting ring (9), one side fixed mounting of supporting ring (9) has first sealing pad (13), the opposite side fixed mounting of supporting ring (9) has second sealing pad (14), communication hole (10) have been seted up to the surface annular degree of supporting ring (9), the inner wall fixed mounting of dust collar (16), the middle part fixed mounting of supporting ring (9) inner wall has second sealing ring (12), the left and right side fixed mounting of supporting ring (9) has sealing ring (11) respectively.
2. The oil spill resistant hydraulic ram of claim 1 wherein: the hydraulic cylinder is characterized in that a second flange plate (4) is fixedly arranged on the other side of the hydraulic cylinder body (1), supporting rods (2) are fixedly arranged at four corners of one side of the second flange plate (4) respectively, an oil inlet (17) is fixedly arranged on the other side of the second flange plate (4), clamping grooves (18) are formed in the oil inlet (17) at equal intervals, and a sealing ring (19) is fixedly arranged on one side of the oil inlet (17).
3. The oil spill resistant hydraulic ram of claim 1 wherein: the second sealing gasket (14) is located inside the protection bin (5), the inner wall of the second sealing gasket (14) is in contact with the outer portion of the piston rod (6), the outer wall of the second sealing gasket (14) is in contact with the inner wall of the protection bin (5), and one side of the second sealing gasket (14) is made of hard rubber materials.
4. The oil spill resistant hydraulic ram of claim 1 wherein: the second sealing gasket (14) is in a C shape, the outer wall and the inner wall of the second sealing gasket (14) are made of soft silica gel materials, one side of the second sealing gasket (14) is fixedly installed and connected with one side of the supporting ring (9), and the second sealing gasket (14) is located outside the communication hole (10).
5. The oil spill resistant hydraulic ram of claim 1 wherein: the other side of the first sealing gasket (13) is made of hard rubber materials, the outer wall and the inner wall of the first sealing gasket (13) are made of soft silica gel materials, and the interiors of the first sealing gasket (13) and the second sealing gasket (14) are of sealing structures.
6. The oil spill resistant hydraulic ram of claim 1 wherein: the inner wall of the first sealing pad (13) is contacted with the outer part of the piston rod (6), and the outer wall of the first sealing pad (13) is contacted with the inner wall of the hydraulic cylinder main body (1).
7. The oil spill resistant hydraulic ram of claim 1 wherein: the first sealing gasket (13) is located inside the hydraulic cylinder main body (1), the first sealing gasket (13) is fixedly connected with the other side of the supporting ring (9), and the first sealing gasket (13) is sleeved outside the communication hole (10).
8. The oil spill resistant hydraulic ram of claim 1 wherein: the first sealing pad (13) is communicated with the inside of the second sealing pad (14), the piston rod (6) penetrates through the inside of the supporting ring (9), and the supporting ring (9) is in contact with the inside of the piston rod (6).
9. The oil spill resistant hydraulic ram of claim 1 wherein: one side of the cleaning plate (15) is arc-shaped, the inner wall of the cleaning plate (15) is in contact with the outer wall of the piston rod (6), and the dustproof ring (16), the second sealing ring (12) and the first sealing ring (11) are made of rubber materials.
10. The oil spill resistant hydraulic ram of claim 2 wherein: the oil inlet (17) is communicated with the inside of the hydraulic cylinder main body (1), and limit holes are respectively formed in four sides of the second flange plate (4) and the first flange plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211465493.7A CN116085339A (en) | 2022-11-22 | 2022-11-22 | Oil leakage prevention hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211465493.7A CN116085339A (en) | 2022-11-22 | 2022-11-22 | Oil leakage prevention hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116085339A true CN116085339A (en) | 2023-05-09 |
Family
ID=86198159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211465493.7A Pending CN116085339A (en) | 2022-11-22 | 2022-11-22 | Oil leakage prevention hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116085339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816761A (en) * | 2023-05-29 | 2023-09-29 | 无锡宏锦液压技术有限公司 | Anti-impact balance type hydraulic cylinder |
-
2022
- 2022-11-22 CN CN202211465493.7A patent/CN116085339A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116816761A (en) * | 2023-05-29 | 2023-09-29 | 无锡宏锦液压技术有限公司 | Anti-impact balance type hydraulic cylinder |
| CN116816761B (en) * | 2023-05-29 | 2024-02-13 | 无锡宏锦液压技术有限公司 | Anti-impact balance type hydraulic cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116085339A (en) | Oil leakage prevention hydraulic cylinder | |
| CN215032672U (en) | High-precision stamping die for automobile covering parts | |
| CN213540904U (en) | Combined sealing structure for hydraulic cylinder | |
| CN211525268U (en) | Novel coal slurry coal mill barrel bolt seal assembly | |
| CN213791531U (en) | Pressurization structure of cubic apparatus press for diamond synthesis | |
| CN212920304U (en) | Sealing assembly of clamping mechanism for full-automatic injection molding machine | |
| CN209800407U (en) | Anti-leakage hydraulic oil cylinder | |
| CN218062896U (en) | Double-oil-seal hydraulic oil cylinder for oil seal vulcanizing machine | |
| CN215798164U (en) | Hydraulic jack with replaceable inner cavity | |
| CN218440610U (en) | Oil press with multiple sealing structures | |
| CN214533799U (en) | Cylinder for stamping push-pull series aluminum profiles | |
| CN209959605U (en) | Hydraulic cylinder | |
| CN218644428U (en) | Water drainage gas production plunger device | |
| CN214682652U (en) | Novel dispensing valve | |
| CN212055641U (en) | Oil seal device for piston rod of shock absorber | |
| CN211231108U (en) | Novel telescopic hydraulic cylinder | |
| CN215245567U (en) | Airplane power steering gear with unloading valve | |
| CN219220900U (en) | Leak-proof hydraulic cylinder | |
| CN213451679U (en) | Sealing structure for high-pressure pneumatic butter machine | |
| CN219409075U (en) | High-tightness hydraulic jack guide sleeve | |
| CN220015681U (en) | Water conservancy oil cylinder | |
| CN212028222U (en) | Hydro-cylinder convenient to overhaul | |
| CN216842474U (en) | Oil cylinder of finishing mill | |
| CN213478809U (en) | Hydraulic cylinder with good sealing performance | |
| CN215409514U (en) | Super wear-resisting leak protection hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |