CN2235527Y - Damping-adjustable type no resonance vibration-damper - Google Patents
Damping-adjustable type no resonance vibration-damper Download PDFInfo
- Publication number
- CN2235527Y CN2235527Y CN 95239556 CN95239556U CN2235527Y CN 2235527 Y CN2235527 Y CN 2235527Y CN 95239556 CN95239556 CN 95239556 CN 95239556 U CN95239556 U CN 95239556U CN 2235527 Y CN2235527 Y CN 2235527Y
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- China
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- plate group
- spring plate
- linear
- cage shape
- cap
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Abstract
The utility model discloses a damping-adjustable type no resonance vibration damper comprising a casing, a cap, a damper and a spiral spring. The spiral spring is arranged between the cap and the casing composed of an upper casing and a lower casing which are connected with each other through a screw thread; the damper is a cage-shaped spring piece unit which is composed of a linear spring piece unit and an arc-shaped spring piece unit; the linear spring piece unit is composed of linear spring pieces while the arc-shaped spring piece unit is composed of arc-shaped spring pieces; the arc-shaped spring pieces and the linear spring pieces are contiguously arranged. The utility model has adjustable damping, shock resistance and wide application.
Description
The utility model relates to a kind of resonance-free vibration isolator.
In the present disclosed vibration isolator, except that " no resonance peak vibration isolator ", all adopt low rigidity or non-linear elastic element to reduce the natural frequency of system, make resonance appear at lower frequency domain and weaken its harm, this just causes difficulty to impacting to isolate.Though no resonance peak vibration isolator can resonance not occur in the resonance frequency domain, but, because no resonance peak vibration isolator adopts the cause of dolioform spring sheet as damping member, make this invention have following defective: 1. pair load sensitivity, the value that equals to stipulate when load and when making vibration isolator be in the equilibrium position of self, the damping of its setting is effective only.No matter load is the value that is greater than or less than regulation, all will make the equilibrium position skew of vibration isolator, thereby make frictional force become very big, makes vibration isolator not have the vibration isolation effect in quite wide frequency domain.Damping can not according to difference shake the level requirement adjust, identical product, its damping is a certain value, if it is big that amplitude becomes, just can't realize the transmissibility of η=1, resonance will appear in system, if amplitude diminishes, the vibration attenuation in the vibration isolation frequency domain is reduced, do not reach due vibration isolating effect.3. the relative displacement of Yun Xuing is very little, for bigger displacement excitation, owing to relative movement makes vibration isolator depart from the equilibrium position significantly the damping sudden change takes place, and makes system as impacting, and does not reach due vibration isolating effect equally.4. shock isolation excitation effectively, and under excited by impact, the macrobending of crossing owing to friction plate easily makes material generation yield deformation even damage.
Goal of the invention of the present utility model is to provide a kind of damp adjustable resonance-free vibration isolator.
The utility model adopts following technological scheme to realize its goal of the invention:
The utility model is by housing, cap (5), damper and helical spring (13) are formed, helical spring (13) is located between cap (5) and the housing, housing is by upper shell (1), lower shell body (2) is formed, be threaded between upper shell (1) and the lower shell body (2), damper is a cage shape spring plate group, form by linear spring plate group and arcuate bombing leaf group, linear spring plate group is made of linear spring sheet (9), the arcuate bombing leaf group is made of arcuate bombing leaf (10), linear spring sheet (9) and the adjacent setting of arcuate bombing leaf (10), cage shape spring plate group upper area is circular cone shape, the arcuate bombing leaf group that is in cage shape spring plate group central region is arc, the linear spring plate group that is in cage shape spring plate group central region be director circle column and its internal diameter less than, the internal diameter of arcuate bombing leaf group transits to that position that its internal diameter is slightly less than linear spring plate group begins and extends downward the position that equates with the internal diameter of linear spring plate group along the camber line that its internal diameter is increased gradually along camber line in the lower area arcuate bombing leaf group of cage shape spring plate group.
Compared with prior art, the utlity model has following advantage:
1. because housing of the present utility model is made up of upper and lower casing, be threaded therebetween, when the rotation upper shell, can make cage shape spring plate group generation radial deformation, thereby change the pressure of spring sheet, the suffered frictional force of cap is changed, realize that damping is variable cap; Conical ring cover and tapered opening ring that the utility model is set on the cage shape spring plate group can improve the functional reliability that damping mechanism is adjusted.
2. because cage shape spring plate group has three zones, upper, middle and lower, it is different to be in three spring sheets in the zone, and this has just formed three work sections, at upper curtate, two groups of reeds by identical radian to the internal diameter direction bending, the make progress damping limiting area of end motion of the cap that formation may occur.At middle section, the internal diameter of arc reed group is greater than linear spring plate group, and in this section, the outer dome of cap only contacts with linear spring plate group, and the frictional damping when producing system vibration by linear spring plate group and cap.Because the distance of this district's end is longer, its frictional damping is approximately constant in bigger vibration displacement, therefore can adapt to the different levels of shaking; The upper end of lower curtate, arc reed group carries out the transition to the position that its internal diameter is slightly less than linear spring plate group along camber line and begins, and extend downward the position that equates with the internal diameter of linear spring plate group along the camber line that internal diameter is increased gradually, form the approximately equalised big frictional damping of a frictional force district that in this section, acts on the cap dome.When system was hit excitation, impact energy was promptly dissipated in the short distance of this section in a large number, makes shock response much smaller than excitation.So, the utlity model has shock-resistantly, adapt to wide advantage.
3. can adjust the amount of deformation of helical spring (13) owing to the utility model by adjusting bolt, adjusting nut, guide pad and guiding groove easily, thereby can realize the convenient of initial position adjusted according to different load.
Fig. 1 is a structural representation of the present utility model.
With reference to the accompanying drawings, embodiment of the present utility model being done one describes in detail:
The utility model is by housing, cap (5), damper and helical spring (13) are formed, helical spring (13) is located between cap and the housing (5), housing is made up of upper shell (1) and lower shell body (2), be threaded between upper shell (1) and the lower shell body (2), damper is a cage shape spring plate group, form by linear spring plate group and arcuate bombing leaf group, linear spring plate group is made up of linear spring sheet (9), the arcuate bombing leaf group is made of arcuate bombing leaf (10), linear in this example spring sheet (9) adopts the hyperbola spring sheet of near linear, the adjacent setting in cage shape spring plate group of above-mentioned linear spring sheet and arcuate bombing leaf, circumferentially and form cage shape spring plate group, the upper area of cage shape spring plate group is circular cone shape, the arcuate bombing leaf group that is in cage shape spring plate group central region is arc, the linear spring plate group that is in cage shape spring plate group central region is director circle column (the director circle column that is is to be similar to columned shape owing to what the linear spring sheet that adopts near linear formed) and its internal diameter internal diameter less than the semielliptic spring group, lower area in cage shape spring plate group, the arcuate bombing leaf group transits to that position that its internal diameter is slightly less than linear spring plate group begins and extends downward the position that equates with linear spring plate group internal diameter along the camber line that its internal diameter increases gradually along camber line, for improving the functional reliability of Adjustable Damping, the utility model is at the sheathed tapered opening ring in the upper end of cage shape spring plate group (7), go up sheathed conical ring cover (8) at tapered opening ring (7), when rotation upper shell (1), stressed the moving down of conical ring cover (8), tapered opening ring (7) shrinks or moves down, thereby make cage shape spring plate group that radially deformation take place, reach the purpose of Adjustable Damping; The utility model is also set ring (11) and packing ring (12) in the lower end of cage shape spring plate group, this lower end is by ring (11) and packing ring (12) clamp down.Can adjust initial position easily for making the utility model, the utility model is provided with between helical spring (13) and cap (5) regulates bolt (3) and adjusting nut (6), the lower end surface and the helical spring of adjusting nut (6) offset, on adjusting nut (6), be provided with guide pad (14), on the inwall of cap (5), be provided with the guiding groove (15) that can match with guide pad (15), protrude from the hole at cap (5) top the upper end of regulating bolt (3), and limiting stopper (4) is set thereon for ease of operation, limiting stopper (4) adopts the hexagonal circle, the position of regulating bolt protrusion cap upper-end surface is a regular hexagon, and with have in, the hexagonal circle (4) of outer-hexagonal cooperates, and forms the supporting surface of vibration isolator.Clamp the hexagonal position of hexagonal circle and cap upper end respectively with two spanners, rotate the hexagonal circle, the adjusting nut that then is supported on the helical spring is done upper and lower moving in cap.When vibration isolator is loaded onto load and is in state of equilibrium, press aforesaid operations, the outer dome that can make cap is as far as possible near the mid point of spring plate group centre portion.In the available deformation band of spring, regardless of magnitude of load, the height of each mounting points equated when aforesaid operations also can make multiple spot install, or made mounting plane parallel with pedestal.
Claims (6)
1. one kind is used for the normal damp adjustable resonance-free vibration isolator that moves of protection equipment; by housing; cap (5); damper and helical spring (13) are formed; helical spring (13) is located between cap (5) and the housing; it is characterized in that housing is by upper shell (1); lower shell body (2) is formed; be threaded between upper shell (1) and the lower shell body (2); damper is a cage shape spring plate group; form by linear spring plate group and arcuate bombing leaf group; linear spring plate group is made of linear spring sheet (9); the arcuate bombing leaf group is made of arcuate bombing leaf (10); linear spring sheet (9) and the adjacent setting of arcuate bombing leaf (10); cage shape spring plate group upper area is circular cone shape; the arcuate bombing leaf group that is in cage shape spring plate group central region is arc; the linear spring plate group that is in cage shape spring plate group central region is quasi-cylindrical shape and its internal diameter internal diameter less than the arcuate bombing leaf group; at the lower area of cage shape spring plate group, the arcuate bombing leaf group transits to that position that its internal diameter is slightly less than linear spring plate group begins and extends downward internal diameter location of equal with linear spring plate group along the camber line that its internal diameter is increased gradually along camber line.
2. damp adjustable resonance-free vibration isolator according to claim 1 is characterized in that linear spring sheet (9) adopts the hyperbola spring sheet of near linear.
3. damp adjustable resonance-free according to claim 1 is characterized in that at the sheathed tapered opening ring in the upper end of cage shape spring plate group (7) every device, goes up sheathed conical ring cover (8) at tapered opening ring (7).
4. according to claim 1 or 3 described damp adjustable resonance-free vibration isolators, it is characterized in that being provided with at helical spring (13) and between adjusting bolt (3) and adjusting nut (6) by cap (5), the lower end surface and the helical spring of adjusting nut (6) offset, on adjusting nut (6), be provided with guide pad (14), on the inwall of cap (5), be provided with the guiding groove (15) that can match with guide pad (15), protrude from the hole at cap (5) top the upper end of regulating bolt (3), and limiting stopper is set thereon (4).
5. according to claim 1 or 3 described damp adjustable resonance-free vibration isolators, the lower end that it is characterized in that cage shape spring plate group is by ring (11) and packing ring (12) clamp down.
6. damp adjustable resonance-free vibration isolator according to claim 4, the lower end that it is characterized in that cage shape spring plate group is by ring (11) and packing ring (12) clamp down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239556 CN2235527Y (en) | 1995-04-11 | 1995-04-11 | Damping-adjustable type no resonance vibration-damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239556 CN2235527Y (en) | 1995-04-11 | 1995-04-11 | Damping-adjustable type no resonance vibration-damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2235527Y true CN2235527Y (en) | 1996-09-18 |
Family
ID=33881308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239556 Expired - Fee Related CN2235527Y (en) | 1995-04-11 | 1995-04-11 | Damping-adjustable type no resonance vibration-damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2235527Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050884C (en) * | 1995-04-11 | 2000-03-29 | 东南大学 | Damp adjustable resonance-free vibration isolator |
| CN1117225C (en) * | 1998-07-21 | 2003-08-06 | 株式会社大林组 | Vibration eliminating device |
| CN101900177A (en) * | 2010-08-04 | 2010-12-01 | 中国船舶重工集团公司第七二二研究所 | Vibration isolator |
| CN110451180A (en) * | 2019-09-19 | 2019-11-15 | 龙感湖伟达纺织有限公司 | A kind of transmission rail of automatic transportation sliver can |
-
1995
- 1995-04-11 CN CN 95239556 patent/CN2235527Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050884C (en) * | 1995-04-11 | 2000-03-29 | 东南大学 | Damp adjustable resonance-free vibration isolator |
| CN1117225C (en) * | 1998-07-21 | 2003-08-06 | 株式会社大林组 | Vibration eliminating device |
| CN101900177A (en) * | 2010-08-04 | 2010-12-01 | 中国船舶重工集团公司第七二二研究所 | Vibration isolator |
| CN101900177B (en) * | 2010-08-04 | 2013-10-02 | 中国船舶重工集团公司第七二二研究所 | Vibration isolator |
| CN110451180A (en) * | 2019-09-19 | 2019-11-15 | 龙感湖伟达纺织有限公司 | A kind of transmission rail of automatic transportation sliver can |
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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 |