CN200961660Y - Vibration absorber of motor vehicle - Google Patents
Vibration absorber of motor vehicle Download PDFInfo
- Publication number
- CN200961660Y CN200961660Y CN 200620010319 CN200620010319U CN200961660Y CN 200961660 Y CN200961660 Y CN 200961660Y CN 200620010319 CN200620010319 CN 200620010319 CN 200620010319 U CN200620010319 U CN 200620010319U CN 200961660 Y CN200961660 Y CN 200961660Y
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- CN
- China
- Prior art keywords
- cylinder body
- piston rod
- dashpot
- motor vehicle
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automotive vehicle vibration reducer, comprising a vibration reducing oil cylinder equipped with a cylinder and a piston rod, with the technical proposal that the vibration cylinder is equipped with an auxiliary vibration reducing cylinder, wherein the lower end of the cylinder is connected with the vibration reducing cylinder through the shaft and the piston rod is connected with the piston rod of the vibration reducing cylinder. The structure of the utility model can decrease the friction between the piston rod of the vibration reducer and the upper sliding bush and the lower sliding bush in the cylinder and thereby decrease the side wearing of the three devices and eliminate the grease seal wearing of the vibration reducer, furthermore reducing oil leakage for the vibration reducer and lengthening the operation life of the utility model.
Description
Technical field
The utility model is a kind of Motor Vehicle vibration damper.
Background technique
The front-wheel vibration damper that present domestic three-wheel agricultural automobile adopts, by a vibration damping cylinder body, bottom plate, the bottom valve piece, the bottom valve spring, the bottom valve valve block, following spacer sleeve, low sleeve, shock-absorbing spring, piston rod, last spacer sleeve, damper valve plate, restore valve block, dottle pin, piston, throttle valve plate, limiting stopper, stop collar, guide holder, the damping valve rod, upper spring seat, carriage, upper mounted plate, inner cylinders etc. assemble, and vibration damping is housed in advance in the vibration damping cylinder body with oily, the lower end of vibration damping cylinder body is contained in three-wheel agricultural automobile front wheel spindle both sides, when vehicle in the hole during recessed road traveling, pitching of front-wheel causes piston rod to pump in the vibration damping cylinder body, and pumping of piston rod drives pumping of parts such as piston, thereby damping oil is entered in the inner cylinder.When front-wheel was stressed, carriage compressed shock-absorbing spring by upper spring seat, and a kind of resistance to compression pression of motion formation downwards in the oil of part such as piston in inner cylinder; When front-wheel is stressed when alleviating, the vibration damping cylinder body is downward with front-wheel, shock-absorbing spring restores, piston rod is twitched above the vibration damping cylinder body, piston rod drives in the oil of part such as piston in inner cylinder upwards a kind of recovery resistance of motion formation again, piston rod move up and down drive this resistance to compression pression that other part forms and restore resistance make speed that piston rod gos up than sedimentation slowly, improved the travelling comfort of vehicle.
This structure forms eccentric wear by piston rod to low sleeve, upper sliding sleeve, and this eccentric wear very easily causes the premature wear of oil sealing, dust ring, forms the seepage of damping oil, causes damper surface to pollute, and reduces effectiveness in vibration suppression; When the relatively poor vehicle of road conditions jolted comparison severity, piston rod very easily formed phenomenon at the bottom of the very stiff and demanding rammer with the cushion cylinder body.
Summary of the invention
The purpose of this utility model just provides a kind of Motor Vehicle vibration damper that can improve the working life of vibration damper.
The utility model comprises the dashpot that has cylinder body and piston rod, and technological scheme is: vibration damping cylinder body one side is equipped with secondary dashpot, and its cylinder body lower end is connected with the dashpot cylinder body by axle, and its piston rod is fixedlyed connected with the piston rod of dashpot.This structure of the present utility model can make the friction between shock absorber piston rod and in-oil cylinder upper sliding sleeve, the low sleeve reduce, thereby the eccentric wear that has reduced between the three decreases, the oil sealing eccentric wear phenomenon of vibration damper is got a new look, and then the oil leakage phenomenon of vibration damper is further reduced, improve working life of the present utility model.
On the basis of said structure, the connection of two-piston bar can realize by being connected with original carriage on the vehicle respectively.In addition, the utility model also is provided with the damping mechanism that can cooperate with its piston rod in the lower end of secondary dashpot inner chamber of cylinder block.This damping mechanism specifically can be designed to: described damping mechanism comprises the positioning plate that is fixed on the lower end in the secondary vibration damping cylinder body, and bearing pin is housed on the positioning plate, and cover gum cover and guide plate on the bearing pin are equipped with back-up ring on the bearing pin of guide plate top.This resistance to compression pression to vibration damper when stressed shock-absorbing spring bear main pressure and played one and attachedly help effect.Piston rod extends in secondary vibration damping cylinder body simultaneously, begins to contact with guide plate when extending to the desired location piston-rod lower end, and guide plate compression gum cover, gum cover have buffering, the anti-end effect of upsetting; Alleviate when stressed, when shock-absorbing spring restores to the original state, the vibration damping equipment that parts such as the piston rod of dashpot, the piston rod of secondary dashpot and damping valve rod, piston are formed, the recovery speed that can slow down the outer shock-absorbing spring of dashpot effectively, make vibration mild, reach the vibration damping purpose.
For further strengthening effectiveness in vibration suppression, can in existing dashpot, increase oil storage cylinder, its concrete structure is: the damping valve rod in inner cylinder body and the inner cylinder body is arranged in the dashpot, and inner cylinder body is outer, the inboard liquid storage cylinder that is provided with of piston rod, and the liquid storage cylinder is communicated with the vibration damping cylinder body by valve.Like this, in when work, the oil content in the dashpot has been become two-part, a part is to make function oil in the inner cylinder combination, and another part adds less amount of lubrication oil again in the vibration damping cylinder body of liquid storage cylinder outside.Owing to add less amount of lubrication oil again in the vibration damping cylinder body of liquid storage cylinder outside, the piston rod probability of taking lubricant oil out of that pumps is much smaller, thereby the seepage phenomenon of lubricant oil can alleviate greatly.
In the utility model, the liquid storage cylinder can be fixed between vibration damping cylinder body and the inner cylinder by variety of way, also it directly can be fixed on the inner cylinder body.At this moment, the sealing of liquid storage cylinder and inner cylinder port can seal respectively, also can adopt following manner: the guide holder that has damping stem guiding hole is cooperated with the end of inner cylinder body opening and the inwall of liquid storage cylinder, and oil sealing is equipped with in the outside of guide holder, between oil sealing and the guide holder spring is housed.The inner cylinder combination itself has sealing configuration, and there is not the eccentric wear phenomenon in oil sealing, and the travelling comfort of its effectiveness in vibration suppression and vehicle improves greatly, and can prolong the working life of vibration damper.
The utility model vibration damper obviously has the following advantages: (1) is because the existence of secondary vibration damper, friction between shock absorber piston rod and upper sliding sleeve, the low sleeve is reduced, thereby the eccentric wear that has reduced between the three decreases, the oil sealing eccentric wear phenomenon of vibration damper is got a new look, and then the oil leakage phenomenon of vibration damper is further reduced; (2) because vibration damper has unique inner cylinder combination, be greatly improved in the effectiveness in vibration suppression life-span of a whole set of vibration damper; (3), avoided phenomenon at the bottom of the rammer of vibration damper because secondary vibration damping utensil plays the gum cover device of buffer function.This new type vibration isolator has improved damping property, has the favorable damping effect, improves a lot than the life-span of existing vibration damper, has improved the travelling comfort that car load is driven.
Description of drawings
Fig. 1 is the utility model embodiment's a phantom;
Fig. 2 is the enlarged view that A is ordered among Fig. 1;
Fig. 3 is the enlarged view that B is ordered among Fig. 1;
Wherein, 1, secondary vibration damping cylinder body, 2, positioning plate, 3, bearing pin, 4, gum cover, 5, guide plate, 6, back-up ring, 7, low sleeve, 8, axle-steel silk back-up ring, 9, piston rod, 10, the hole Steel Cable Baffle Ring, 11, upper sliding sleeve, 12, oil sealing, 13, gland, 14, dust ring, 15, carriage, 16, M33 * 2 nuts, 17, O type circle, 18, plug screw, 19, M48 * 2 nuts, 20, O type circle, 24, the damping valve rod, 25, upper spring seat, 26, shock-absorbing spring, 27, piston rod, 28, dust ring, 29, gland, 30, oil sealing, 31, upper sliding sleeve, 32, oil cylinder cover, 33, oil sealing base, 34 oil sealings, 35, oil seal gasket, 36, O type circle, 37, spring, 38, guide holder, 39, spacing pad, 40, restore valve block, 41, piston, 42, damper valve plate 1,43, damper valve plate 2,44, dottle pin, 45, the M6 nut, 46, last spacer sleeve, 47, low sleeve, 48, following spacer sleeve, 49, the dashpot cylinder body, 50, inner cylinder, 51, the liquid storage cylinder, 52, the bottom valve combination, 53, bottom plate, 54, M12 groove nut.
Embodiment
As shown in the figure, present embodiment comprises dashpot and secondary dashpot.Be provided with the inner cylinder 50 and the liquid storage cylinder 51 that communicate with the dashpot inner chamber in the dashpot, and have piston rod 27 to be connected with carriage 15.Liquid storage cylinder 51 is between piston rod 15 and inner cylinder 50, and the lower end is fixed on the cylinder body of inner cylinder 50.Upper end at inner cylinder 50 and liquid storage cylinder 51 is equipped with the guide holder 38 that cooperates with inner cylinder 50 upper end-hole and liquid storage cylinder 51 internal surfaces, and the oil sealing 34 that is connected with liquid storage cylinder cylinder body is equipped with in its top.Between oil sealing 34 and the guide holder 38 spring 37 is arranged.Spring 37 installation cavitys communicate with liquid storage cylinder 51 inner chambers by the hole on the guide holder 38.Damping valve rod 24 in the inner cylinder 51 passes oil sealing 34 and is connected with piston 41 with guide holder 38.
Side at dashpot has secondary dashpot, and the lower end of its cylinder body 1 is connected with dashpot cylinder body 49 by axle, and the upper end of its piston rod 9 is connected by nut 16 with carriage 15.Damping mechanism is equipped with in lower end at secondary dashpot inner chamber, this mechanism comprises the positioning plate 2 that is fixed on bottom under the secondary dashpot, bearing pin 3 is housed on the positioning plate 2, is set with the guide plate 5 of gum cover 4 and gum cover 4 tops on the bearing pin 3, on the bearing pin 3 of guide plate 5 tops back-up ring 6 is housed.
The other parts of present embodiment adopt prior art, repeat no more here.
Claims (7)
1, a kind of Motor Vehicle vibration damper, comprise the dashpot that has cylinder body (49) and piston rod (27), it is characterized in that: vibration damping cylinder body one side is equipped with secondary dashpot, its cylinder body (1) lower end is connected with dashpot cylinder body (49) by axle, and its piston rod (9) is fixedlyed connected with the piston rod (27) of dashpot.
2, Motor Vehicle vibration damper according to claim 1 is characterized in that: the interior lower end of secondary dashpot cylinder body (1) is provided with the damping mechanism that can cooperate with its piston rod (9).
3, Motor Vehicle vibration damper according to claim 2, it is characterized in that: described damping mechanism comprises the positioning plate (2) that is fixed on the lower end in the secondary vibration damping cylinder body (1), bearing pin (3) is housed on the positioning plate (2), bearing pin (3) is gone up cover gum cover (4) and guide plate (5), on the bearing pin (3) of guide plate (5) top back-up ring (6) is housed.
4, according to claim 1 or 2 or 3 described Motor Vehicle vibration dampers, it is characterized in that: the piston rod of piston rod of secondary dashpot (9) and dashpot is installed on the carriage.
5, according to claim 1 or 2 or 3 described Motor Vehicle vibration dampers, it is characterized in that: the damping valve rod (24) in inner cylinder body (50) and the inner cylinder body (50) is arranged in the dashpot, inner cylinder body (50) is outer, piston rod (27) inboard is provided with liquid storage cylinder (51), and liquid storage cylinder (51) is communicated with vibration damping cylinder body (49) by valve.
6, Motor Vehicle vibration damper according to claim 5 is characterized in that: described liquid storage cylinder (51) is fixed on the inner cylinder body (50).
7, Motor Vehicle vibration damper according to claim 6, it is characterized in that: the guide holder (39) that has damping stem guiding hole cooperates with the end of inner cylinder body (50) opening and the inwall of liquid storage cylinder (51), oil sealing (34) is equipped with in the outside of guide holder (39), between oil sealing (34) and the guide holder (39) spring (37) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010319 CN200961660Y (en) | 2006-09-27 | 2006-09-27 | Vibration absorber of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010319 CN200961660Y (en) | 2006-09-27 | 2006-09-27 | Vibration absorber of motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961660Y true CN200961660Y (en) | 2007-10-17 |
Family
ID=38798176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620010319 Expired - Fee Related CN200961660Y (en) | 2006-09-27 | 2006-09-27 | Vibration absorber of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961660Y (en) |
-
2006
- 2006-09-27 CN CN 200620010319 patent/CN200961660Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 Termination date: 20091027 |