CN112483505B - Dustproof steering oil cylinder - Google Patents
Dustproof steering oil cylinder Download PDFInfo
- Publication number
- CN112483505B CN112483505B CN202011354607.1A CN202011354607A CN112483505B CN 112483505 B CN112483505 B CN 112483505B CN 202011354607 A CN202011354607 A CN 202011354607A CN 112483505 B CN112483505 B CN 112483505B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sleeve
- fixedly connected
- piston
- ring
- 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.)
- Active
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
-
- 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
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap 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
- F15B15/08—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
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/227—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having an auxiliary cushioning piston within the main piston or the cylinder end face
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of oil cylinders and discloses a dustproof steering oil cylinder which comprises a cylinder barrel, wherein a piston rod is connected inside the cylinder barrel in a sliding mode, a lower piston assembly is sleeved at one end, close to a nut, of the outer side of the piston rod, a buffer plug is sleeved at one end, close to the lower piston assembly, of the outer side of the piston rod, a friction ring is connected at one end, far away from the buffer plug, of the outer side of the piston rod in a sliding mode, an upper trunnion is fixedly connected to one side, far away from the lower trunnion, of one end of the piston rod, and an upper piston assembly is fixedly connected to the outer side of the friction ring. According to the invention, the lower piston assembly is sleeved on the piston rod, and is limited by the nut and the buffer plug, so that the lower piston assembly can rotate on the piston rod, the rotating sleeve of the lower piston assembly can rotate on the inner sides of the piston sleeve and the end cap, the piston rod can rotate in two directions in the cylinder barrel, the steering of the piston rod is more flexible, and the practicability of the oil cylinder is improved.
Description
Technical Field
The invention relates to the technical field of oil cylinders, in particular to a dustproof steering oil cylinder.
Background
The oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion, has simple structure and reliable work, can avoid a speed reducer when the oil cylinder is used for realizing the reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to various mechanical hydraulic systems, the output force of the oil cylinder is in direct proportion to the effective area of a piston and the pressure difference of two sides of the piston, but dust easily enters the inside of the oil cylinder in the long-time working process of the oil cylinder, so that the working performance of the oil cylinder is reduced and even the oil cylinder is damaged.
Chinese patent discloses a pneumatic cylinder with dust cover (grant No. CN 104329319A), when this patent technology hydro-cylinder moves, highly-compressed air makes inside no matter the volume grow or diminish of dust cover, remain the malleation state throughout, clean highly-compressed air is discharged from the evacuation check valve, make inside the dust can't get into the dust cover, the normal operating of hydro-cylinder has been guaranteed, but its piston rod is in long-time course of the work with handing-over of cylinder, advance the ash easily, and then the work efficiency who causes the pneumatic cylinder is not high, and the steering effect of piston rod is not good, the practicality is not strong.
Disclosure of Invention
The invention aims to provide a dustproof steering oil cylinder to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a dustproof steering oil cylinder comprises a cylinder barrel, wherein a piston rod is connected inside the cylinder barrel in a sliding mode, a lower trunnion is fixedly connected at one end of the cylinder barrel, a nut is fixedly connected at one end of the outer side of the piston rod, a lower piston assembly is sleeved at one end of the outer side of the piston rod, which is close to the nut, a buffer plug is sleeved at one end of the outer side of the piston rod, which is close to the lower piston assembly, a friction ring is connected at one end of the outer side of the piston rod, which is far away from the buffer plug, in a sliding mode, an upper trunnion is fixedly connected at one side of the outer side of the piston rod, which is far away from the lower trunnion, an upper piston assembly is fixedly connected at the outer side of the friction ring, and the upper piston assembly and the lower piston assembly are identical in structure, piston assembly includes the piston sleeve and passes through the end cover of fix with screw in piston sleeve one end down, the outer draw-in groove has been seted up in the outside of piston sleeve, and the outside of piston sleeve is close to the one end of outer draw-in groove and has seted up first open slot, the outside of end cover is close to the one end of first open slot and has seted up the second open slot, and the inboard one end embedding of end cover is provided with the inner seal circle, the inside of piston sleeve and end cover rotates jointly and is connected with the rotation cover, the outside that rotates the cover is located the piston sleeve is provided with the spring, the outer seal circle has been cup jointed in the outside of outer draw-in groove, the guide ring has been cup jointed jointly in the outside of first open slot and second open slot.
As a still further scheme of the invention: the rotating sleeve comprises a long sleeve, one end of the outer side of the long sleeve is fixedly connected with a rotating ring, and one end of the rotating ring is fixedly connected with a short sleeve.
As a still further scheme of the invention: the rotating ring is embedded into the inner side of the end head sleeve, the inner sealing ring is positioned between the end head sleeve and the rotating ring, the short sleeve sequentially penetrates through the inner sealing ring and the inner side of the end head sleeve, the spring is sleeved on the outer side of the long sleeve, and one end of the long sleeve penetrates through the inner side of the piston sleeve.
As a still further scheme of the invention: the cylinder includes the cylinder shell, the one end of cylinder shell is passed through ring flange fixedly connected with lower cylinder cap, and the other end of cylinder shell also passes through ring flange fixedly connected with and goes up the cylinder cap, the outside of cylinder shell is close to the one end fixedly connected with oil inlet of lower cylinder cap, and the outside of cylinder shell is close to the one end fixedly connected with oil return opening of last cylinder cap, the inside of cylinder shell is close to the one end fixedly connected with lower retaining ring of lower cylinder cap, and the inside of cylinder shell is close to the one end fixedly connected with upper retaining ring of last cylinder cap, the cylinder shell all imbeds with the handing-over department of last cylinder cap and cylinder shell and lower cylinder cap and is provided with the cylinder head seal circle, the inboard middle part embedding of going up the cylinder cap is provided with dustproof subassembly.
As a still further scheme of the invention: the upper cylinder cover comprises an upper cylinder cover body, an inner groove is formed in the middle of one end of the upper cylinder cover body, an outer groove is formed in the outer side, close to the inner groove, of one end of the upper cylinder cover body, a cylinder cover sealing ring is embedded into the inner side of the outer groove, and a dustproof assembly is embedded into the inner side of the inner groove.
As a still further scheme of the invention: the dustproof assembly comprises an outer blocking sleeve and an inner blocking sleeve matched with the outer blocking sleeve, a fixing plate is fixedly connected with one end of the outer blocking sleeve, an outer clamping plate is fixedly connected with the other end of the outer blocking sleeve, an inner clamping plate is fixedly connected with one end of the inner blocking sleeve, a rubber ring is embedded between the outer blocking sleeve and the fixing plate, and the outer clamping plate is embedded between the inner blocking sleeve and the inner clamping plate.
As a still further scheme of the invention: the lower piston assembly is located between the lower limiting ring and the upper limiting ring, the upper piston assembly is located between the upper limiting ring and the dustproof assembly, and the dustproof assembly is located between the upper piston assembly and the upper cylinder cover.
As a still further scheme of the invention: the piston rod comprises a piston rod body, a lower rod is fixedly connected to one end of the piston rod body, an upper rod is fixedly connected to the other end of the piston rod body, and a threaded rod is fixedly connected to one end of the lower rod.
As a still further scheme of the invention: the buffer plug and the lower piston assembly are sequentially sleeved on the outer side of the lower rod from right to left, the nut is connected on the outer side of the threaded rod through threaded engagement, and one end of the upper rod is fixedly connected with the upper trunnion.
Compared with the prior art, the invention has the beneficial effects that:
1. through cup jointing lower piston assembly on the piston rod, carry out down piston assembly through nut and buffer plug to lower piston assembly and carry on spacingly to make lower piston assembly can rotate at the piston rod, and the rotating sleeve of lower piston assembly can rotate at the inboard of piston sleeve and end headgear, and then can make the piston rod rotate in the inside both ways of cylinder, make turning to of piston rod more nimble, improved the practicality of hydro-cylinder.
2. The joint of the piston rod and the upper cylinder cover is sealed through the dustproof assembly, and the dustproof assembly is formed by assembling the outer blocking sleeve, the inner blocking sleeve, the rubber ring and the like, so that common sealing is realized, the elasticity of the dustproof assembly is better, the sealing performance is better, the external dust can be effectively prevented from entering the oil cylinder, the working efficiency of the oil cylinder is reduced, and the service life of the oil cylinder is prolonged.
Drawings
FIG. 1 is a schematic view of a dustproof steering cylinder;
FIG. 2 is an exploded view of a lower piston assembly of a dust-tight steering cylinder;
FIG. 3 is a schematic view of the assembly of the lower piston assembly of a dust tight steering cylinder;
FIG. 4 is a schematic view showing a structure of a rotating sleeve in a dustproof steering cylinder;
FIG. 5 is a partially exploded view of a cylinder barrel of a dust-tight steering cylinder;
FIG. 6 is a schematic view of the upper head of a dust-proof steering cylinder;
FIG. 7 is a schematic view of a dust-proof assembly for a steering cylinder;
fig. 8 is a partial structural view of a piston rod in a dustproof steering cylinder.
In the figure: 1. a cylinder barrel; 11. a cylinder barrel housing; 12. a lower retainer ring; 13. an oil inlet; 14. a lower cylinder cover; 15. an oil return port; 16. a cylinder cover sealing ring; 17. a dust-proof assembly; 171. an outer retaining sleeve; 172. an inner blocking sleeve; 173. an inner card; 174. a fixing sheet; 175. an outer card; 176. a rubber ring; 18. an upper cylinder cover; 181. an upper cylinder cover body; 182. an outer tank; 183. an inner tank; 10. an upper confinement ring; 2. a piston rod; 21. a piston rod body; 22. a rod is arranged; 23. a lower rod; 24. a threaded rod; 3. an upper trunnion; 4. an upper piston assembly; 5. a friction ring; 6. a buffer plug; 7. a lower piston assembly; 71. a piston sleeve; 72. an outer sealing ring; 73. a guide ring; 74. a spring; 75. rotating the sleeve; 751. long sleeve; 752. a rotating ring; 753. short sleeve; 76. an inner seal ring; 77. an end cap; 78. an outer clamping groove; 79. a first open slot; 70. a second open slot; 8. a nut; 9. and a lower trunnion.
Detailed Description
Referring to fig. 1 to 8, in the embodiment of the present invention, a dustproof steering cylinder includes a cylinder barrel 1, a piston rod 2 is slidably connected inside the cylinder barrel 1, a lower trunnion 9 is fixedly connected to one end of the cylinder barrel 1, a nut 8 is fixedly connected to one end of the outer side of the piston rod 2, a lower piston assembly 7 is sleeved on one end of the outer side of the piston rod 2 close to the nut 8, a buffer plug 6 is sleeved on one end of the outer side of the piston rod 2 close to the lower piston assembly 7, a friction ring 5 is slidably connected to one end of the outer side of the piston rod 2 far from the buffer plug 6, an upper trunnion 3 is fixedly connected to one side of the outer end of the piston rod 2 far from the lower trunnion 9, an upper piston assembly 4 is fixedly connected to the outer side of the friction ring 5, and the upper piston assembly 4 has the same structure as the lower piston assembly 7, lower piston assembly 7 includes piston sleeve 71 and fixes at the end head cover 77 of piston sleeve 71 one end through the screw, outer draw-in groove 78 has been seted up in the outside of piston sleeve 71, first open slot 79 has been seted up to the outside of piston sleeve 71 near the one end of outer draw-in groove 78, second open slot 70 has been seted up to the outside of end head cover 77 near the one end of first open slot 79, the one end embedding of the inboard of end head cover 77 is provided with interior sealing washer 76, piston sleeve 71 and end head cover 77's inside is rotated jointly and is connected with and rotates cover 75, the outside that rotates cover 75 is located the inboard of piston sleeve 71 is provided with spring 74, outer sealing washer 72 has been cup jointed in the outside of outer draw-in groove 78, guide ring 73 has been cup jointed jointly in the outside of first open slot 79 and second open slot 70.
In fig. 4: the rotary sleeve 75 includes a long sleeve 751, one end of the outside of the long sleeve 751 is fixedly connected with a rotary ring 752, and one end of the rotary ring 752 is fixedly connected with a short sleeve 753, so that the rotary sleeve 75 can be rotated inside the piston sleeve 71 and the end cap sleeve 77, and the piston rod 2 can be rotated together with the rotary sleeve 75.
In fig. 2, 3 and 4: the rotating ring 752 is embedded inside the end cap 77, the inner seal ring 76 is positioned between the end cap 77 and the rotating ring 752, so that the rotating ring 752 can stably rotate inside the end cap 77, the short sleeve 753 sequentially penetrates through the inner seal ring 76 and the inner side of the end cap 77, the short sleeve 753 and the end cap 77 are sealed through the seal ring 76 to prevent leakage, the spring 74 is sleeved outside the long sleeve 751, one end of the long sleeve 751 penetrates through the inner side of the piston sleeve 71, and the rotating sleeve 75 and the piston sleeve 71 are supported through the spring 74 to stably rotate.
In fig. 5: the cylinder 1 includes cylinder shell 11, cylinder shell 11's one end is passed through ring flange fixedly connected with lower cylinder cap 14, cylinder shell 11's the other end also passes through ring flange fixedly connected with upper cylinder cap 18, cylinder shell 11's the outside is close to lower cylinder cap 14's one end fixedly connected with oil inlet 13, cylinder shell 11's the outside is close to upper cylinder cap 18's one end fixedly connected with oil return opening 15, cylinder shell 11's inside is close to lower retaining ring 12 of lower cylinder cap 14's one end fixedly connected with, cylinder shell 11's inside is close to upper retaining ring 10 of upper cylinder cap 18's one end fixedly connected with, cylinder shell 11 and upper cylinder cap 18 and cylinder shell 11 all imbed with lower cylinder cap 14's handing-over department and are provided with cylinder cap seal 16, the inboard middle part embedding of upper cylinder cap 18 is provided with dust-proof component 17.
In fig. 6: the upper cylinder cover 18 comprises an upper cylinder cover body 181, an inner groove 183 is formed in the middle of one end of the upper cylinder cover body 181, an outer groove 182 is formed in the outer side, close to the inner groove 183, of one end of the upper cylinder cover body 181, a cylinder head sealing ring 16 is embedded into the inner side of the outer groove 182, a dustproof assembly 17 is embedded into the inner side of the inner groove 183, and through the cylinder head sealing ring 16, the joint of the cylinder barrel shell 11 and the upper cylinder cover 18 is kept sealed to prevent the cylinder barrel shell from leaking.
In fig. 7: dustproof component 17 includes outer keeping off cover 171 and keeps off cover 172 in the cover 171 assorted with outer, the one end fixedly connected with stationary blade 174 of outer keeping off cover 171, the outer card 175 of the other end fixedly connected with of outer keeping off cover 171, card 173 in the one end fixedly connected with of interior keeping off cover 172, the embedding is provided with rubber circle 176 between outer keeping off cover 171 and the stationary blade 174, between keeping off cover 172 and interior card 173 including the embedding of outer card 175, cross-over department through dustproof component 17 to piston rod 2 and last cylinder head 18 seals, prevent that the dust from entering into in the cylinder shell 11.
In fig. 1 and 5: the lower piston assembly 7 is located between the lower limit ring 12 and the upper limit ring 10, so that the lower piston assembly 7 can move together with the piston rod 2 between the lower limit ring 12 and the upper limit ring 10, the upper piston assembly 4 is located between the upper limit ring 10 and the dustproof assembly 17, and the dustproof assembly 17 is located between the upper piston assembly 4 and the upper cylinder cover 18, so that the upper piston assembly 4 and the dustproof assembly 17 are kept stable and do not move in the horizontal direction.
In fig. 8: the piston rod 2 comprises a piston rod body 21, a lower rod 23 is fixedly connected to one end of the piston rod body 21, an upper rod 22 is fixedly connected to the other end of the piston rod body 21, and a threaded rod 24 is fixedly connected to one end of the lower rod 23.
In fig. 1 and 8: buffering stopper 6 and lower piston assembly 7 cup joint in proper order in the outside of lower beam 23 from the right side left, and nut 8 passes through the thread engagement to be connected in the outside of threaded rod 24, carries on spacingly to buffering stopper 6 and lower piston assembly 7 through nut 8 for buffering stopper 6 and lower piston assembly 7 can carry out micro displacement on lower beam 23, the one end of upper boom 22 and last trunnion 3 fixed connection.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (8)
1. A dustproof steering oil cylinder comprises a cylinder barrel (1) and is characterized in that a piston rod (2) is connected inside the cylinder barrel (1) in a sliding mode, a lower trunnion (9) is fixedly connected to one end of the cylinder barrel (1), a nut (8) is fixedly connected to one end of the outer side of the piston rod (2), a lower piston assembly (7) is sleeved at one end, close to the nut (8), of the outer side of the piston rod (2), a buffer plug (6) is sleeved at one end, close to the lower piston assembly (7), of the outer side of the piston rod (2), a friction ring (5) is connected to one end, far away from the buffer plug (6), of the outer side of the piston rod (2), and one side fixedly connected with of trunnion (9) goes up trunnion (3) down is kept away from to the one end of piston rod (2), piston assembly (4) are gone up to the outside fixedly connected with of friction ring (5), it is the same with the structure of lower piston assembly (7) to go up piston assembly (4), piston assembly (7) include piston sleeve (71) and through end socket cover (77) of fix with screw in piston sleeve (71) one end down, outer draw-in groove (78) have been seted up in the outside of piston sleeve (71), and the one end that the outside of piston sleeve (71) is close to outer draw-in groove (78) has seted up first open slot (79), second open slot (70) have been seted up to the one end that the outside of end socket cover (77) is close to first open slot (79) ) And, the inboard one end embedding of end cover (77) is provided with inner seal circle (76), the inside common rotation of piston bush (71) and end cover (77) is connected with rotates cover (75), the outside that rotates cover (75) is located piston bush (71) is provided with spring (74), outer seal circle (72) have been cup jointed in the outside of outer draw-in groove (78), leading ring (73) have been cup jointed jointly in the outside of first open slot (79) and second open slot (70), cylinder (1) includes cylinder shell (11), flange dish fixedly connected with lower cylinder cap (14) is passed through to the one end of cylinder shell (11), and the other end of cylinder shell (11) also passes through flange dish fixedly connected with upper cylinder cap (18), the outside of cylinder shell (11) is close to the one end fixedly connected with oil inlet (13) of lower cylinder cap (14), and the outside of cylinder shell (11) is close to the one end fixedly connected with oil return opening (15) of upper cylinder cap (18), the inside one end fixedly connected with lower limit ring (12) that is close to lower cylinder shell (14) of cylinder shell (11) and the upper limit ring (11) and the cylinder shell (11) and the upper limit ring (11) and the cylinder shell (11) are all connected with the upper limit cylinder shell (11) of handing-over, the cylinder shell (11) is located to be connected with the cylinder shell (10), the cylinder shell (11) of cylinder shell (11), the cylinder shell (11) is located on cylinder shell (11) and the cylinder shell (11) is connected with upper limit cylinder shell (11), the cylinder shell (11) is located A cylinder cover sealing ring (16) is arranged, and a dustproof component (17) is embedded in the middle of the inner side of the upper cylinder cover (18).
2. The dustproof steering cylinder according to claim 1, wherein the rotating sleeve (75) comprises a long sleeve (751), one end of the outer side of the long sleeve (751) is fixedly connected with a rotating ring (752), and one end of the rotating ring (752) is fixedly connected with a short sleeve (753).
3. The dustproof steering cylinder according to claim 2, wherein the rotating ring (752) is embedded in the end head sleeve (77), the inner sealing ring (76) is located between the end head sleeve (77) and the rotating ring (752), the short sleeve (753) sequentially penetrates through the inner sealing ring (76) and the inner side of the end head sleeve (77), the spring (74) is sleeved on the outer side of the long sleeve (751), and one end of the long sleeve (751) penetrates through the inner side of the piston sleeve (71).
4. The dustproof steering cylinder according to claim 1, wherein the upper cylinder cover (18) comprises an upper cylinder cover body (181), an inner groove (183) is formed in the middle of one end of the upper cylinder cover body (181), an outer groove (182) is formed in one end of the upper cylinder cover body (181) close to the outer side of the inner groove (183), the cylinder cover sealing ring (16) is embedded in the inner side of the outer groove (182), and the dustproof assembly (17) is embedded in the inner side of the inner groove (183).
5. The dustproof steering cylinder according to claim 1, wherein the dustproof assembly (17) comprises an outer blocking sleeve (171) and an inner blocking sleeve (172) matched with the outer blocking sleeve (171), a fixing piece (174) is fixedly connected to one end of the outer blocking sleeve (171), an outer clamping piece (175) is fixedly connected to the other end of the outer blocking sleeve (171), an inner clamping piece (173) is fixedly connected to one end of the inner blocking sleeve (172), a rubber ring (176) is embedded between the outer blocking sleeve (171) and the fixing piece (174), and the outer clamping piece (175) is embedded between the inner blocking sleeve (172) and the inner clamping piece (173).
6. A dust-tight steering cylinder according to claim 1, characterized in that the lower piston assembly (7) is located between the lower retainer ring (12) and the upper retainer ring (10), the upper piston assembly (4) is located between the upper retainer ring (10) and the dust-tight assembly (17), and the dust-tight assembly (17) is located between the upper piston assembly (4) and the upper cylinder head (18).
7. The dustproof steering cylinder according to claim 1, wherein the piston rod (2) comprises a piston rod body (21), one end of the piston rod body (21) is fixedly connected with a lower rod (23), the other end of the piston rod body (21) is fixedly connected with an upper rod (22), and one end of the lower rod (23) is fixedly connected with a threaded rod (24).
8. The dustproof steering cylinder according to claim 7, wherein the buffer plug (6) and the lower piston assembly (7) are sequentially sleeved on the outer side of the lower rod (23) from right to left, the nut (8) is connected on the outer side of the threaded rod (24) through threaded engagement, and one end of the upper rod (22) is fixedly connected with the upper trunnion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354607.1A CN112483505B (en) | 2020-11-27 | 2020-11-27 | Dustproof steering oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354607.1A CN112483505B (en) | 2020-11-27 | 2020-11-27 | Dustproof steering oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112483505A CN112483505A (en) | 2021-03-12 |
| CN112483505B true CN112483505B (en) | 2022-11-11 |
Family
ID=74935690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011354607.1A Active CN112483505B (en) | 2020-11-27 | 2020-11-27 | Dustproof steering oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483505B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737365A (en) * | 2009-12-17 | 2010-06-16 | 长沙中联重工科技发展股份有限公司 | Mobile crane, steering mid positioning and locking device and mid cylinder thereof |
| CN203176046U (en) * | 2012-12-28 | 2013-09-04 | 江苏恒立高压油缸股份有限公司 | Steering cylinder |
| CN104481966A (en) * | 2014-12-30 | 2015-04-01 | 浙江科力车辆控制系统有限公司 | Structure of hydraulic follow-up type oil cylinder of cab |
| CN104879342A (en) * | 2015-06-16 | 2015-09-02 | 中国北方车辆研究所 | Rear wheel steering hydraulic cylinder of automobile |
| CN205806063U (en) * | 2016-06-30 | 2016-12-14 | 蚌埠液力机械有限公司 | Multi-angle pull bar form steering cylinder |
| CN106481611A (en) * | 2015-08-31 | 2017-03-08 | 扬州市江都区方圆气动件厂 | New two-way pneumatic support bar |
| DE102016104763A1 (en) * | 2016-03-15 | 2017-09-21 | Georg Becker | Drive unit and blower with a drive unit |
| CN107299922A (en) * | 2017-08-03 | 2017-10-27 | 安徽科海压缩机制造有限公司 | A kind of buffering hydraulic cylinder |
| CN108150478A (en) * | 2017-12-21 | 2018-06-12 | 芜湖恒隆汽车转向系统有限公司 | A kind of noise-reduction method of steering gear noise test oil cylinder mechanism |
| CN108317125A (en) * | 2018-03-26 | 2018-07-24 | 湖北赞博信息科技股份有限公司 | A kind of two-way multi-steering hydraulic piston oil cylinder of food machinery |
| CN109099025A (en) * | 2018-11-08 | 2018-12-28 | 无锡能手工控科技有限公司 | A kind of rodless cylinder |
| CN209366254U (en) * | 2018-12-20 | 2019-09-10 | 重庆卡福汽车制动转向系统有限公司 | Dust slinger power cylinder assembly |
| CN111894944A (en) * | 2020-08-26 | 2020-11-06 | 张帅 | Servo hydraulic cylinder |
-
2020
- 2020-11-27 CN CN202011354607.1A patent/CN112483505B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737365A (en) * | 2009-12-17 | 2010-06-16 | 长沙中联重工科技发展股份有限公司 | Mobile crane, steering mid positioning and locking device and mid cylinder thereof |
| CN203176046U (en) * | 2012-12-28 | 2013-09-04 | 江苏恒立高压油缸股份有限公司 | Steering cylinder |
| CN104481966A (en) * | 2014-12-30 | 2015-04-01 | 浙江科力车辆控制系统有限公司 | Structure of hydraulic follow-up type oil cylinder of cab |
| CN104879342A (en) * | 2015-06-16 | 2015-09-02 | 中国北方车辆研究所 | Rear wheel steering hydraulic cylinder of automobile |
| CN106481611A (en) * | 2015-08-31 | 2017-03-08 | 扬州市江都区方圆气动件厂 | New two-way pneumatic support bar |
| DE102016104763A1 (en) * | 2016-03-15 | 2017-09-21 | Georg Becker | Drive unit and blower with a drive unit |
| CN205806063U (en) * | 2016-06-30 | 2016-12-14 | 蚌埠液力机械有限公司 | Multi-angle pull bar form steering cylinder |
| CN107299922A (en) * | 2017-08-03 | 2017-10-27 | 安徽科海压缩机制造有限公司 | A kind of buffering hydraulic cylinder |
| CN108150478A (en) * | 2017-12-21 | 2018-06-12 | 芜湖恒隆汽车转向系统有限公司 | A kind of noise-reduction method of steering gear noise test oil cylinder mechanism |
| CN108317125A (en) * | 2018-03-26 | 2018-07-24 | 湖北赞博信息科技股份有限公司 | A kind of two-way multi-steering hydraulic piston oil cylinder of food machinery |
| CN109099025A (en) * | 2018-11-08 | 2018-12-28 | 无锡能手工控科技有限公司 | A kind of rodless cylinder |
| CN209366254U (en) * | 2018-12-20 | 2019-09-10 | 重庆卡福汽车制动转向系统有限公司 | Dust slinger power cylinder assembly |
| CN111894944A (en) * | 2020-08-26 | 2020-11-06 | 张帅 | Servo hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112483505A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112483505B (en) | Dustproof steering oil cylinder | |
| CN210003347U (en) | kinds of braking rocker arms and engine | |
| CN211009895U (en) | Hydraulic oil cylinder | |
| CN109578377A (en) | The hydraulic cylinder of the two-way dual mechanical locking in any position can be achieved | |
| CN210949876U (en) | Pressure-adjustable shaft seal | |
| CN211649404U (en) | Rotary joint with high sealing performance and long service life | |
| CN1114396A (en) | Hydraulically autocontrolled oil cylinder with two-stage dynamic seal | |
| CN210623425U (en) | Rotating shaft braking device with safety function | |
| CN209781333U (en) | Double-blade oscillating hydraulic oil cylinder | |
| CN213361211U (en) | Multifunctional vacuum one-way valve | |
| CN216642625U (en) | Hydraulic cylinder suitable for narrow and small space | |
| CN211820174U (en) | Hydraulic cylinder combination seal structure | |
| CN216767933U (en) | Oil cylinder assembly with high air tightness based on elevator | |
| CN220869772U (en) | Pressurized oil cylinder with double piston sealing elements | |
| CN211778309U (en) | Rotary cylinder | |
| CN210566636U (en) | Spring type reset safety valve piston rod inner and outer sealing structure | |
| CN216199451U (en) | Cylinder with buffering shock-absorbing function | |
| CN214221677U (en) | Improved piston for oil cylinder | |
| CN208381027U (en) | A kind of reeling oil cylinder | |
| CN213775903U (en) | Novel push-and-pull hydraulic cylinder | |
| CN216618738U (en) | Three-level sealing structure at end cover of pneumatic actuator | |
| CN209743628U (en) | Wear-resistant hard sealing disc valve | |
| CN216111526U (en) | Dustproof device for hydraulic cylinder | |
| CN210770238U (en) | Piston rod sealing assembly of piston type hydraulic cylinder | |
| CN215334398U (en) | Hydraulic cylinder with adjustable piston rod buffering force and self-adaptive angle |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |