CN203189600U - Ball reinforcement friction damper - Google Patents
Ball reinforcement friction damper Download PDFInfo
- Publication number
- CN203189600U CN203189600U CN 201320115515 CN201320115515U CN203189600U CN 203189600 U CN203189600 U CN 203189600U CN 201320115515 CN201320115515 CN 201320115515 CN 201320115515 U CN201320115515 U CN 201320115515U CN 203189600 U CN203189600 U CN 203189600U
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- piston body
- chambers
- air chamber
- cavity
- friction damper
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Abstract
The utility model relates to a ball reinforcement friction damper, and belongs to the technical field of dampers. The ball reinforcement friction damper changes the frictional damping force through oil and by boosting a boosting air chamber according to vibration source signals. The damper is characterized in that an outer shell body and a piston body are included, the piston body is arranged in the cavity of the outer shell body, the piston body is provided with a hollow inner cavity, a separation net which divides the hollow cavity of the piston body into two chambers is arranged in the inner cavity, both the chambers are filled with oil, one of the chambers is used as the boosting air chamber, a plurality of bag-shaped hollow balls are arranged in the boosting air chamber, a detachable friction plate is mounted on the outer wall of the piston body, and the friction plate is connected with a piston body chamber through a piston pin. When the ball reinforcement friction damper works, frictional force is generated according to the displacement of the outer shell body, and the magnitude of the frictional force corresponds to the magnitude of the displacement. Further, the ball reinforcement friction damper can achieve feedback control.
Description
Technical field
The utility model belongs to the technical field of damper, is a kind of according to signal of vibrating, utilizes fluid and the supercharging of supercharging air chamber to change the damper of friction damping force.
Background technique
Vibration extensively is present in building, the machinery, and oscillation phenomenon is inevitable under complex environment.The harm that causes generally has: destroy mechanism's intensity; Destroy the nominal operating condition of instrument, instrument, even cause instrument work malfunctioning; Cause construct noise, worsen staff's working environment.Vibration has become restriction engineering design performance, reliability and the key factor in life-span.Therefore, vibration control is most important in machinery and structure Design.
Summary of the invention
The utility model utilizes the characteristics of frcition damper, when mechanical oscillatory structure, according to the automatic size of adjusting damping force of amplitude size, obtains better effectiveness in vibration suppression.Produce corresponding big less friction according to displacement size, make damped system can adapt to vibration frequency, situation that the amplitude variations scope is big, have more good energy dissipation capacity.
A kind of sacculus reinforcement frcition damper, it is characterized in that: it comprises frame, piston body, operating bar, fitting seat.Frame is the cavity with an end opening; Piston body is installed in the frame cavity, and is installed on the fitting seat; The piston body outer wall is equipped with detachable friction plate, and friction plate is connected with the piston body cavity by wrist pin; Piston body has the closed hollow inner chamber, and the closed hollow inner chamber of piston body is divided into two chambers by isolation net, all is full of oil in two chambers, away from the supercharging air chamber is installed in the chamber of operating bar.
The supercharging air chamber 7 of described sacculus reinforcement frcition damper is the hollow bead of cryptomere.Operating bar 2 and supercharging air chamber 7 are arranged in two chambers of piston body 4.
Description of drawings
Fig. 1 is plan view of the present utility model
Among the figure: 1, frame, 2, operating bar, 3, upper end cap, 4, piston body, 5, wrist pin, 6, isolation net, 7, the supercharging air chamber, 8, friction plate, 9, lower end cap, 10, fitting seat
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises frame 1, piston body 4, fitting seat 10, described piston body 4 is installed in frame 1 cavity and by being threaded and is installed on the fitting seat 10, piston body 4 outer wall perforates, and installation wrist pin 5, piston body 4 outer walls are equipped with detachable friction plate 8, and friction plate 8 is connected with piston body 4 cavitys by wrist pin 5.Piston body 4 cavitys one end is equipped with the upper end cap 3 that has the hole.Described frame 1 one ends are provided with operating bar 2, operating bar 2 links to each other with piston body 4 cavitys by the aperture on the described upper end cap 3, isolation net 6 is installed in piston body 4 cavitys, isolation net 6 is for having the thin plate of some apertures, isolation net 6 is divided into two chambers with piston body 4 inner chambers, two chambers all are full of fluid, several hollow sacculus are set as supercharging air chamber 7 in the chamber away from operating bar 2.
Frame 1 links to each other with the vibration source structure, and during vibration source structural vibration, operating bar 2 moves downward with respect to piston body 4, the fluid effect supercharging air chamber of piston body 4 inside, and the stressed smaller volume of air chamber rubber barrier film, pressure increases.Fluid is given in the reaction of supercharging air chamber, and its pressure is increased; The stressed increase of wrist pin 5 one end faces has changed the positive pressure of 1 of friction plate 8 and frame, makes friction plate 8 and the frictional force of frame 1 relative movement obtain increasing.
Claims (3)
1. sacculus reinforcement frcition damper, it is characterized in that: it comprises frame (1), piston body (4), operating bar (2), fitting seat (10), and frame (1) is the cavity with an end opening; Piston body (4) is installed in frame (1) cavity, and is installed on the fitting seat (10); Piston body (4) outer wall is equipped with detachable friction plate (8), and friction plate (8) is connected with piston body (4) cavity by wrist pin (5); Piston body (4) has the closed hollow inner chamber, and the closed hollow inner chamber of piston body (4) is divided into two chambers by isolation net (6), all is full of oil in two chambers, away from supercharging air chamber (7) is installed in the chamber of operating bar (2).
2. sacculus reinforcement frcition damper according to claim 1, it is characterized in that: described supercharging air chamber (7) is the hollow bead of cryptomere.
3. sacculus reinforcement frcition damper according to claim 1, it is characterized in that: described operating bar (2) and supercharging air chamber (7) are arranged in two chambers of piston body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115515 CN203189600U (en) | 2013-03-14 | 2013-03-14 | Ball reinforcement friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115515 CN203189600U (en) | 2013-03-14 | 2013-03-14 | Ball reinforcement friction damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189600U true CN203189600U (en) | 2013-09-11 |
Family
ID=49106461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320115515 Expired - Fee Related CN203189600U (en) | 2013-03-14 | 2013-03-14 | Ball reinforcement friction damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526296A (en) * | 2016-01-26 | 2016-04-27 | 济南大学 | Novel friction damper |
| CN105546011A (en) * | 2016-01-26 | 2016-05-04 | 济南大学 | Expansion sealing device |
-
2013
- 2013-03-14 CN CN 201320115515 patent/CN203189600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526296A (en) * | 2016-01-26 | 2016-04-27 | 济南大学 | Novel friction damper |
| CN105546011A (en) * | 2016-01-26 | 2016-05-04 | 济南大学 | Expansion sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20150314 |
|
| EXPY | Termination of patent right or utility model |