CN2634189Y - Hydraulic and pneumatic combined vibration reducer - Google Patents
Hydraulic and pneumatic combined vibration reducer Download PDFInfo
- Publication number
- CN2634189Y CN2634189Y CN 03269213 CN03269213U CN2634189Y CN 2634189 Y CN2634189 Y CN 2634189Y CN 03269213 CN03269213 CN 03269213 CN 03269213 U CN03269213 U CN 03269213U CN 2634189 Y CN2634189 Y CN 2634189Y
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- hydraulic pressure
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- piston
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Abstract
The utility model discloses a hydraulic and pneumatic combined vibration reducer which comprises a vibration reducer casing with the inner chamber divided into an upper pneumatic chamber and a lower hydraulic chamber by a separating disk, wherein the upper pneumatic chamber is provided with a pneumatic vibration reducing mechanism, and the lower hydraulic chamber is provided with a hydraulic vibration reducing mechanism. The hydraulic vibration reducing mechanism and the pneumatic vibration reducing mechanism move together and have advantages of good vibration reducing performance and stable working performance. The vibration reducer can be applied in vehicle suspension system and in vibration reduction of impact system like air hammer.
Description
Technical field
The utility model relates to a kind of vibration damping equipment of vehicle, especially a kind of hydraulic pressure, air-pressure combined vibration damper.
Background technique
Used vibration damping equipment on the present various vehicle, majority is hydraulic type vibration damper or pneumatic-typed vibration damper, the hydraulic type vibration damper has transmission safety coefficient height, is easy to realize the advantage of overload protection, the hydraulic oil of hydraulic type vibration damper employing simultaneously is working medium, the relative movement part surface energy is lubricated voluntarily, long service life, its shortcoming are that hydraulic oil self does not have compressibility, and resetting of relative movement device need be by other elastic member; The pneumatic-typed vibration damper has characteristics such as pollution-free, energy-conservation, efficient, but the gas viscosity damping is little than liquid, is unfavorable at a large amount of kinetic energy of short distance internal consumption.
Summary of the invention
The purpose of this utility model provides that a kind of damping property is good, the hydraulic pressure of stable work in work, air-pressure combined vibration damper.
For achieving the above object, the utility model comprises shock absorber casing, and its structural feature is: a separator disc is divided into upper strata atmospheric pressure cavity and lower floor's hydraulic pressure cavity with described shock absorber casing inner chamber; In the atmospheric pressure cavity of upper strata, by the internal layer air pressure casing wall that is located on the separator disc atmospheric pressure cavity bottom, upper strata is divided into internal layer pneumatic cylinder and outer pneumatic cylinder, the air damping piston is housed in the internal layer pneumatic cylinder, be connected with the active piston bar on the air damping piston, the annular air damping piston is housed in outer pneumatic cylinder, be connected with the relay piston bar on the annular air damping piston, the upper end of active piston bar and relay piston bar is connected as a single entity; In lower floor's hydraulic pressure cavity, hydraulic oil is housed, by the hydraulic pressure cavity interlayer lower floor's hydraulic pressure cavity is divided into hydraulic pressure cavity and lower hydraulic pressure chamber, the hydraulic pressure cavity interlayer is provided with throttle valve, be provided with liquid-storing cavity in the last hydraulic pressure cavity, the liquid-storing cavity inner chamber is communicated with internal layer pneumatic cylinder inner chamber, in the passage of its connection, be provided with throttle valve, the liquid entering hole of liquid-storing cavity is provided with unidirectional feed liquor throttle valve, the liquid outlet of liquid-storing cavity is communicated with lower hydraulic pressure chamber through the hydraulic pressure cavity interlayer, the liquid outlet of liquid-storing cavity is provided with unidirectional fluid throttle valve, be provided with hydraulic piston at the lower hydraulic pressure chamber inner bottom part, stretch out the lower bottom cover of shock absorber casing under the liquid presses piston pole on the hydraulic piston.
Described relay piston bar is 4, and is uniform on the intermediate circumference of annular air damping piston, and the top of relay piston bar is " ten " shape and links together.
Top cover inboard at shock absorber casing is provided with cushion.
On the sidewall on described shock absorber casing top, be provided with vent.
From the above mentioned, this vibration damper has liquid-springing and the dual double-action mechanism of pneumatic cushioning, when being subjected to external force, vibration damper does the time spent, hydraulic oil in the hydraulic piston extruding lower hydraulic pressure chamber, when the throttle valve of hydraulic oil on the hydraulic pressure cavity interlayer enters in the hydraulic pressure cavity, consume a part of kinetic energy, hydraulic oil in the last hydraulic pressure cavity enters internal layer pneumatic cylinder inner chamber by the unidirectional feed liquor throttle valve on the liquid-storing cavity liquid entering hole, when the resistance that overcomes the air damping piston makes its rising, further consume a part of kinetic energy, so damping property is good, stable work in work.This vibration damper can be used for the suspension system inside of automobile, also can be used for the vibration damping as impact systems such as pneumatic hammers.Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model;
Fig. 2 is an A-A sectional view among Fig. 1.
Embodiment
Fig. 1, hydraulic pressure shown in Figure 2, air-pressure combined vibration damper, in shock absorber casing 1, a separator disc 20 is divided into upper strata atmospheric pressure cavity and lower floor's hydraulic pressure cavity with described shock absorber casing 1 inner chamber; In the atmospheric pressure cavity of upper strata, by the internal layer air pressure casing wall 21 that is located on the separator disc 20 atmospheric pressure cavity bottom, upper strata is divided into internal layer pneumatic cylinder 2 and outer pneumatic cylinder 3, internal layer air pressure casing wall 21 can be processed into one with separator disc 20, also can be two independently parts be installed together use, air damping piston 5 is housed in internal layer pneumatic cylinder 2, be connected with active piston bar 17 on the air damping piston 5, in outer pneumatic cylinder 3, annular air damping piston 4 is housed, be connected with relay piston bar 6 on the annular air damping piston 4, active piston bar 17 is connected as a single entity with the upper end of relay piston bar 6, relay piston bar 6 is 4, uniform on the intermediate circumference of annular air damping piston 4, the top of relay piston bar 6 is " ten " shape and links together; In lower floor's hydraulic pressure cavity, hydraulic oil is housed, by hydraulic pressure cavity interlayer 19 lower floor's hydraulic pressure cavity is divided into hydraulic pressure cavity 7 and lower hydraulic pressure chamber 8, hydraulic pressure cavity interlayer 19 is provided with throttle valve 11, throttle valve 11 is 2-8, be used to control the flow of hydraulic oil, be provided with liquid-storing cavity 12 in the last hydraulic pressure cavity 7, liquid-storing cavity 12 inner chambers are communicated with internal layer pneumatic cylinder 2 inner chambers, in the passage of its connection, be provided with throttle valve 10, the liquid outlet that the liquid entering hole of liquid-storing cavity 12 is provided with unidirectional feed liquor throttle valve 15 liquid-storing cavities 12 is communicated with lower hydraulic pressure chamber 8 through hydraulic pressure cavity interlayer 19, the liquid outlet of liquid-storing cavity 12 is provided with unidirectional fluid throttle valve 16, be that the hydraulic oil folk prescription is to entering internal layer pneumatic cylinder 2 inner chambers through last hydraulic pressure cavity 7, folk prescription is to being back to lower hydraulic pressure chamber 8 by internal layer pneumatic cylinder 2 inner chambers, be provided with hydraulic piston 9 at lower hydraulic pressure chamber 8 inner bottom parts, the liquid presses piston pole on the hydraulic piston 9 stretches out the lower bottom cover of shock absorber casing 1 for 13 times.Upper top cover inboard at shock absorber casing 1 is provided with cushion 14, this cushion 14 be used to increase air damping piston 5 and annular air damping piston 4 spring-back force, avoid the moving piston rod of principal and subordinate to contact with the rigidity of top cover, on the sidewall on shock absorber casing 1 top, also be provided with vent 18, can set up Air Filter on the vent 18, avoid the dust invasion.Certainly, cushion 14 also can be a spring, and this spring contacts with the piston rod part rigidity, increases the falling speed of air damping piston.This vibration damper can be used for the suspension system inside of automobile, also can be used for vibration damping as impact systems such as pneumatic hammers, this vibration damper both can be installed in vertical direction simultaneously, can use by loose joint universal joint on the upper top cover of vibration damper or liquid presses piston pole 13 on the non-perpendicular direction again.
Claims (4)
1, a kind of hydraulic pressure, air-pressure combined vibration damper comprise shock absorber casing (1), it is characterized in that: a separator disc (20) is divided into upper strata atmospheric pressure cavity and lower floor's hydraulic pressure cavity with described shock absorber casing (1) inner chamber; In the atmospheric pressure cavity of upper strata, by the internal layer air pressure casing wall (21) that is located on the separator disc (20) atmospheric pressure cavity bottom, upper strata is divided into internal layer pneumatic cylinder (2) and outer pneumatic cylinder (3), air damping piston (5) is housed in internal layer pneumatic cylinder (2), be connected with active piston bar (17) on the air damping piston (5), annular air damping piston (4) is housed in outer pneumatic cylinder (3), be connected with relay piston bar (6) on the annular air damping piston (4), active piston bar (17) is connected as a single entity with the upper end of relay piston bar (6); In lower floor's hydraulic pressure cavity, hydraulic oil is housed, by hydraulic pressure cavity interlayer (19) lower floor's hydraulic pressure cavity is divided into hydraulic pressure cavity (7) and lower hydraulic pressure chamber (8), hydraulic pressure cavity interlayer (19) is provided with throttle valve (11), be provided with liquid-storing cavity (12) in the last hydraulic pressure cavity (7), liquid-storing cavity (12) inner chamber is communicated with internal layer pneumatic cylinder (2) inner chamber, in the passage of its connection, be provided with throttle valve (10), the liquid entering hole of liquid-storing cavity (12) is provided with unidirectional feed liquor throttle valve (15), the liquid outlet of liquid-storing cavity (12) is communicated with lower hydraulic pressure chamber (8) through hydraulic pressure cavity interlayer (19), the liquid outlet of liquid-storing cavity (12) is provided with unidirectional fluid throttle valve (16), be provided with hydraulic piston (9) at lower hydraulic pressure chamber (8) inner bottom part, stretch out the lower bottom cover of shock absorber casing (1) under the liquid presses piston pole (13) on the hydraulic piston (9).
2, hydraulic pressure according to claim 1, air-pressure combined vibration damper, it is characterized in that: described relay piston bar (6) is 4, uniform on the intermediate circumference of annular air damping piston (4), the top of relay piston bar (6) is " ten " shape and links together.
3, hydraulic pressure according to claim 1 and 2, air-pressure combined vibration damper is characterized in that: be provided with cushion (14) in the top cover inboard of shock absorber casing (1).
4, hydraulic pressure according to claim 1 and 2, air-pressure combined vibration damper is characterized in that: be provided with vent (18) on the sidewall on described shock absorber casing (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269213 CN2634189Y (en) | 2003-07-29 | 2003-07-29 | Hydraulic and pneumatic combined vibration reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269213 CN2634189Y (en) | 2003-07-29 | 2003-07-29 | Hydraulic and pneumatic combined vibration reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634189Y true CN2634189Y (en) | 2004-08-18 |
Family
ID=34299850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03269213 Expired - Fee Related CN2634189Y (en) | 2003-07-29 | 2003-07-29 | Hydraulic and pneumatic combined vibration reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634189Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226176A (en) * | 2017-07-13 | 2017-10-03 | 江苏科技大学 | It is a kind of to subtract the generating ship underframe for shaking vibration damping |
-
2003
- 2003-07-29 CN CN 03269213 patent/CN2634189Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226176A (en) * | 2017-07-13 | 2017-10-03 | 江苏科技大学 | It is a kind of to subtract the generating ship underframe for shaking vibration damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |