A kind of Oil-gas Separation formula vibration damper
Technical field
The utility model relates to the vibration damper of automobile-use, particularly a kind of Oil-gas Separation formula vibration damper.
Background technique
In recent years, domestic vibration damper manufacture level is greatly improved, and all is the world of homemade vibration damper basically in low and middle-grade cars field.The technical merit of vibration damper also progressively improving, is dwindled with the gap of international most advanced level in addition.
The vibration damper that the current mobility car is commonly used is hydraulic damper mostly, arrives the gas-filled type vibration damper then, and the shortcoming of gas-filled type vibration damper is that oil sealing is required height, manufacturing process and maintenance technique complexity.Particularly vibration damper can cause air pressure to weaken when prolonged exercise or direct gas leak phenomenon, and that will make damping force not reach design requirement just, thereby causes changing vibration damper the corresponding cost that increased.
Still be in the budding stage at home as for Oil-gas Separation formula vibration damper, as the Chinese patent publication number is the designed Motor Vehicle oil gas separated type vibration damper of CN2685651, it includes Piston and rod assembly, oily clutch release slave cylinder assembly and oil seal assembly, oil clutch release slave cylinder inner chamber is divided into air chamber and accumulator by the floating piston assembly, Piston and rod assembly includes the piston of connecting rod assembly and band valve system, and the piston of Piston and rod assembly is in oily clutch release slave cylinder accumulator.It is more limited that described air chamber bears pressure 2-3Mpa, along with the continuous lifting of automotive performance, the pressure that bears of vibration damper required also can increase, and the vibration damper component of described patent disclosure are various, the structure more complicated, and performance is further improved.
The model utility content
The utility model provides a kind of Oil-gas Separation formula vibration damper, designs simplification at deficiency of the prior art, wideer damping force excursion is provided, and effectively oil/gas is separated and seal, the corresponding usability that improves product is installed and used all very convenient.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of Oil-gas Separation formula vibration damper, it comprises the vibration damper clutch release slave cylinder of monotubular formula, be arranged on floating piston sub-assembly, piston sub-assembly and the oil sealing guider sub-assembly of vibration damper clutch release slave cylinder inside, and through the connecting rod of described oil sealing guider sub-assembly and piston sub-assembly.
Described floating piston sub-assembly comprises floating piston with the O-ring seals that adopts the fluorine rubber material to make that is arranged on above the floating piston, and the described O-ring seals that is used to seal effectively separates the fluid of vibration damper clutch release slave cylinder upper end and the pressurized gas of vibration damper clutch release slave cylinder lower end.
Described fluid is stored in the shoe cream room, and described pressurized gas are stored in the air storing cavity;
Described piston sub-assembly comprises piston, and described piston is the high-strength nylon piston of one for collection flowing valve, recuperation valve, compression valve.
The twice piston ring is set on the described piston, and one motive sealing is with static seal; The piston body both sides are provided with pad, compression valve valve block, rebuilt valve valve block respectively, and screw with the rebuilt valve nut; On the described oil sealing Upper gasket oil sealing is set, oil sealing is connected on the guider, and guider forms sealing by O-ring seals.
Described oil sealing guider sub-assembly comprises equipped mutually oil sealing, guider and O-ring seals;
Described piston sub-assembly and floating piston sub-assembly are arranged in the inner chamber of vibration damper clutch release slave cylinder;
Outer chamber wall between piston sub-assembly and oil sealing guider sub-assembly is provided with dust-proof cover, prevents that impurity such as extraneous earth, spot are fade-in in the vibration damper, influence its performance.
Described connecting rod is arranged in the vibration damper inner chamber, and an end extends outside the vibration damper inner chamber, and the other end runs through oil sealing guider sub-assembly and piston sub-assembly, until the end of piston sub-assembly.
In the space between described connecting rod and the vibration damper clutch release slave cylinder inner chamber bumper is set, the effective working stroke of control link, and vehicle body played auxiliary cushioning effect.
The outer small end portion of vibration damper clutch release slave cylinder is provided with the dust-proof cover backing plate, and dust-proof cover backing plate bottom is fitted with the dust-proof cover inner ring, is provided with collar and is located between connecting rod and dust-proof cover backing plate; And riveted joint has the beam bushing pipe on connecting rod, and dust-proof cover is played fixation.
The upper end of vibration damper clutch release slave cylinder is a vibration damper fluid, and the lower end is full of high-pressure inert gas.Described high-pressure inert gas pressure can reach 15Mpa, thereby wideer damping force excursion is provided.
The utility model adopts guider radially to slot, and the mode in the clutch release slave cylinder outside by the extruding type rolling realizes the integral sealing requirement of product.
The utility model compared with prior art has following beneficial effect:
A kind of Oil-gas Separation formula of the utility model vibration damper, be on the basis of inflation vibration damper, pour the gas (can reach 15Mpa) of bigger pressure in the clutch release slave cylinder thus wideer damping force excursion is provided, and effectively oil/gas is separated and seal, improved the usability of product greatly.In addition, because this product has only a clutch release slave cylinder (tradition is double-barrel structure), simple in structure, cost of production significantly reduces, and director costs descends 15%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the exploded view of part-structure among Fig. 1.
Among the figure, 1-clutch release slave cylinder, 2-floating piston sub-assembly, 3-piston sub-assembly, 4-dust-proof cover, 5-oil sealing guider sub-assembly, 6-bumper, 7-dust-proof cover inner ring, 8-dust-proof cover backing plate, 9-collar, 10-beam bushing pipe, 11-connecting rod, 12-bottom, 13-air storing cavity, 14-shoe cream room; The 21-floating piston, 22-O shape seal ring, 23-piston, 24-oil sealing, 25-guider, 26-O shape seal ring, 27-rebuilt valve nut, the big pad of 28-, 29-compression valve valve block, 30-rebuilt valve valve block, the big pad of 31-, 321-oil sealing Upper gasket, 322-oil sealing Upper gasket.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Embodiment:
Referring to Fig. 1 and Fig. 2, a kind of Oil-gas Separation formula vibration damper, comprise monotubular formula structural damping device clutch release slave cylinder 1, be arranged on floating piston sub-assembly 2, piston sub-assembly 3 and the oil sealing guider sub-assembly 5 of vibration damper clutch release slave cylinder 1 inside, and through the connecting rod 11 of described oil sealing guider sub-assembly 5 with piston sub-assembly 3.
Floating piston sub-assembly 2 comprises floating piston 21 with the O-ring seals 22 that adopts the fluorine rubber material to make that is arranged on the floating piston 21, and the described O-ring seals that is used to seal effectively separates vibration damper clutch release slave cylinder 1 upper end and is stored in fluid and vibration damper clutch release slave cylinder 1 lower end in the shoe cream room 14 and is stored in the interior pressurized gas of air storing cavity 13.Air storing cavity 13 is positioned on the bottom 12, and dock with the floating piston 21 that is positioned at floating piston sub-assembly 2 bottoms on the top of air storing cavity 13, and the O-ring seals 22 on the floating piston sub-assembly 2 docks with the bottom of shoe cream room 14.
Piston sub-assembly 3 comprises piston 23, and described piston 23 is the high-strength nylon piston of one for collection flowing valve, recuperation valve, compression valve;
The piston ring that twice are made by the Teflon material is set on the piston 23, and one motive sealing is with static seal; Piston 23 both sides successively are provided with big pad 28, rebuilt valve valve block 30, compression valve valve block 29, big pad 31, and screw with rebuilt valve nut 27; On described oil sealing Upper gasket 321 and the oil sealing Upper gasket 322 oil sealing 24 is set, oil sealing 24 is connected on the guider 25, and guider 25 forms sealing by O-ring seals 26.
Described oil sealing guider sub-assembly 5 comprises equipped mutually oil sealing 24, guider 25 and O-ring seals 26;
Outer chamber wall between piston sub-assembly 3 and oil sealing guider sub-assembly 5 is provided with dust-proof cover 4, prevents that impurity such as extraneous earth, spot are fade-in in the vibration damper, influence its performance.
Described connecting rod 11 is arranged in vibration damper clutch release slave cylinder 1 inner chamber, and an end extends outside vibration damper clutch release slave cylinder 1 inner chamber, and the other end runs through oil sealing guider sub-assembly 5 and the end of piston sub-assembly 3 until piston sub-assembly 3.
In the space between described connecting rod 11 and vibration damper clutch release slave cylinder 1 inner chamber bumper 6 is set, the working stroke of connecting rod 11 has been carried out effective control, bumper 6 also can reduce the effect of external shock to connecting rod 11.
Vibration damper clutch release slave cylinder 1 outer connecting rod 11 upper end portions are provided with dust-proof cover backing plate 8, and dust-proof cover backing plate 8 bottoms are fitted with dust-proof cover inner ring 7, be provided with collar 9 and located between connecting rod 11 and dust-proof cover backing plate 8; And riveted joint has beam bushing pipe 10 on connecting rod 11, and dust-proof cover 4 is played fixation.
The upper end of vibration damper clutch release slave cylinder 1 is a vibration damper fluid, and the lower end is full of high-pressure inert gas.Described high-pressure inert gas pressure can reach 15Mpa, thereby wideer damping force excursion is provided.
Sealing process: adopt the A place of guider 25 radially to slot, by the mode of extruding type rolling, realize the integral sealing requirement of product in vibration damper clutch release slave cylinder 1 outside.
A kind of Oil-gas Separation formula of the described product of the foregoing description vibration damper is through overtesting 3,000,000 times (GB only is 1,000,000 times), and product is oil-proof, does not lose efficacy, and can carry out mass production.
The utility model adopts the vibration damper clutch release slave cylinder of monotubular formula to change traditional double barreled structure in the past, makes structure simpler, is easy to realize; Wideer damping force excursion is provided, and effectively vibration damper interior oil/gas has been separated and seal, performance is more superior than traditional vibration damper.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.