CN202867682U - Bidirectional elastic damper based on polymer material - Google Patents
Bidirectional elastic damper based on polymer material Download PDFInfo
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- CN202867682U CN202867682U CN 201220358009 CN201220358009U CN202867682U CN 202867682 U CN202867682 U CN 202867682U CN 201220358009 CN201220358009 CN 201220358009 CN 201220358009 U CN201220358009 U CN 201220358009U CN 202867682 U CN202867682 U CN 202867682U
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- piston rod
- damping
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Abstract
A bidirectional elastic damper based on a polymer material comprises a piston cylinder component, wherein the piston cylinder component comprises a piston rod (3) and a cylinder barrel (4); the cylinder barrel (4) is provided with a rear cover (5); the piston rod penetrates a rod hole in the front cover (9) at the bottom of the cylinder barrel, and extends into a damping cavity (6) of the cylinder barrel; a piston (7) is arranged at the front end of the piston rod; an oscillating bearing is arranged at the rear rod end of the piston rod; a connection hinging rod is arranged on the rear cover; another oscillating bearing is arranged at the rod end of the connection hinging rod; the front cavity and the rear cavity of the piston in the cylinder barrel of the piston cylinder component are filled with the polymer damping material; and a radiating structure is arranged on the outer body of the cylinder barrel, and comprises a plurality of ring-shaped convex flanges. According to the utility model, the safety and reliability of a power transmission tower can be improved in natural disaster environments such as typhoon and earthquakes, and a powerful guarantee is provided for safe and stable operation of a power network in harsh environments.
Description
Technical field
The utility model relates to a kind of damper, especially relates to a kind of bidirectional elastic damper based on having very high viscosity, strong compressibility macromolecular material.
Background technique
Fluid damper is based on the mobile principle in space at present, and by the size of adjusting pore with non-uniform cross section, thereby the span of damping adjusting coefficient has preferably oscillation damping and energy dissipating effect.And, new life has been injected in the in recent years development that appears as damping of the intellectual material take magnetic flow liquid as representative, it will be surrendered the fluid damping technology and combine with the strategy of ACTIVE CONTROL, brought into play very large using value in various vibration dampings field gradually, but the magnetic rheological liquid damper spare overwhelming majority needs power supply control in the market, and often needs stable low-voltage dc power supply.On the other hand, estimate because the destruction of the disasters such as typhoon, earthquake often is difficult to prediction in advance, and effective performance of this damper performance can largely depend on decision-making and the driving of extraneous control system, therefore whole system is had very high requirement.This is so that the application of this damper aspect transmission tower is difficult to realize breakthrough progress always.
Existing damper based on fluid, owing to be by pouring viscous fluid in casing, utilize the flow resistance of viscous fluid to obtain damping, therefore, viscous fluid has become necessary medium.The introducing of viscous fluid, so that for the design of whole device prevents that the sealed member of fluid leakage from becoming necessary link, yet, how well no matter seal, also will inevitably cause being attached to fluid on the body etc. and leak into the outside.Therefore, make the fluid leakage quantity reach veritably zero, in fact almost impossible.
On the other hand, although that the fluid leakage quantity reaches is zero in fact almost impossible, for satisfying better real requirement, then certainly will make the fluid leakage quantity ad infinitum level off to zero, this just must must improve the precision of sealing configuration.Yet the problem of existence is: the precision of sealing configuration is higher, so that cost significantly improves, has so just limited it largely and has used widely.In addition, as will in the situation that does not improve sealed precision, satisfying seal request, then the fastening force of sealing certainly will to be strengthened.But the sealing fastening force is larger, and frictional force is larger, so that the sliding of damper is obstructed, also damper has been produced harmful effect.Therefore, existing damper based on viscous fluid exists the problem that its purposes not only is limited but also can't avoid its manufacture cost significantly to increase.
For remedying the shortcoming of existing leakage based on the viscous damping fluid device, now known have gas is poured gas damper in the cylinder.But if this gas damper also leaks gas, then damper does not almost reach damping, and, prevent fully that the leakage ratio of gas that particle is minimum etc. from preventing that fluid leakage is more difficult.Therefore, this gas damper, even if there is not defective on the structure, but because existing the gas leakage problem greatly to limit its applied environment.In addition, gas damper because of the reason such as the compressibility of gas etc. is strong, has poor sensitivity in the characteristic of oil damper.
In sum, the present situation of prior art is: the damper based on fluid is longer working life, can obtain larger damping force, but its cost that causes because of leakage Upgrade Problem significantly, has greatly limited the prospect of its extensive use; There is short, the problem such as sensitivity is relatively poor in working life in gas damper.
In addition, the heat dispersion of existing damper based on fluid is bad, can make that fluid temperature (F.T.) rises, the viscosity variation damping force descends.
The model utility content
Technical problem to be solved in the utility model just provides a kind of heat dispersion and well need not viscous fluid or gas, the damping force that can obtain to expect be applied to the bidirectional elastic damper of transmission tower based on macromolecular material.
Solve the problems of the technologies described above, the solution that the utility model adopts is as follows:
A kind of bidirectional elastic damper based on macromolecular material, comprise piston cylinder assembly, it is characterized in that: described piston cylinder assembly comprises piston rod 3 and with the cylinder barrel 4 of bonnet 5, the bar hole that piston rod 3 passes cylinder barrel bottom protecgulum 9 puts in cylinder barrel damping cavity 6, the front end of piston rod 3 is piston 7, also be provided with piston rod sheath 2 at cylinder barrel 4 protecgulums 9, piston rod 3 rear rod ends are provided with joint shaft bearing, bonnet 5 is provided with the connection toggle, rod end also is provided with joint shaft bearing, and piston ante-chamber and back cavity in the cylinder barrel of described piston cylinder assembly are full of polymer damping material.
The outer body of described cylinder barrel is provided with radiating structure, and it is protruding stupefied for the outer body of cylinder barrel is provided with many ring-types.
The bidirectional elastic damper based on macromolecular material that the utility model provides, wherein, described macromolecular material is a kind of high polymer elastic damping body material, that is: fiber reinforcement type viscoelastic polymer based composites.It is mingled with the fiber with high elastic modulus by the viscoelasticity matrix and forms.It had both had the catabiotic characteristic of viscous liquid under certain stress, have again the characteristic of elastic solid material power storage.When its produced dynamic stress or strain, some energy was converted into heat energy and dissipates, and another part energy gets up with the form deposit of potential energy, reaches the purpose of power consumption absorbing by vibration mechanical energy being changed into other energy.
The bidirectional elastic damper based on macromolecular material that the utility model provides, wherein, the elastic colloid macromolecular material has very high viscosity, strong compressibility, good chemical inertness, aging quality resistance.Damper based on the elastic colloid macromolecular material, on performance, to obviously be better than existing damper based on viscous fluid, can effectively subdue the vibration of various frequencies, amplitude, simultaneously can absorb rapidly excitation type impact energy, so that it can be widely used under the various operating modes, and can obtain good damping.
The bidirectional elastic damper based on macromolecular material that the utility model provides, its elastic damping material possesses compressibility, and has a strong viscoelastic feature, in minimum displacement, can produce and be equal to the elastic potential energy that large power spring produces, therefore the high frequency that causes for the high-amplitude low-frequency vibrations such as the insurmountable wind of common hydraulic damper carries and external disturbance vibrates by a narrow margin, all can play obvious damping effect, possess the common double effects that produces that uses of spring pull bar and hydraulic damper.
The bidirectional elastic damper based on macromolecular material that the utility model provides is high viscosity and the strong compressibility of giving full play to damping material, and the whole employing of damper is simple in structure, the cylinder structure of installing easily.
The bidirectional elastic damper based on macromolecular material that the utility model provides, for so that damping cavity and high viscosity resisting medium moment produce great frictional force makes impact kinetic energy be converted into rapidly heat energy to discharge fast, the cylinder barrel outer wall in the overall structure is provided with radiating structure.
The bidirectional elastic damper based on macromolecular material that the utility model provides, when being operated in the rugged environment for the guarantee damper, be used for the part piston rod of turnover damping cavity inside not by corrosion, outside housing structure, be provided with the piston rod jacket structure, and adopt sunk screw to be connected with cylinder barrel.
The bidirectional elastic damper based on macromolecular material that the utility model provides, easy for installation for ensureing the damper scene, be provided with spherical plain bearing rod end at the damper two ends, be used for compensating alignment error less in the field-mounted process, be the damper condition of providing safeguard of under operating mode preferably, working.
The model utility beneficial effect: the bidirectional elastic damper based on macromolecular material that the utility model provides has following features: (1) energy-absorbing is than large, and efficient is high, can obtain efficient oscillation damping and energy dissipating effect in minimum displacement; (2) speed responsive wide ranges, dynamic response time is short; (3) ageing resistance is strong, can be applied to for a long time the physical environment at transmission tower place; (4) to excitation type energy jump and by a narrow margin the vibration of high frequency and amplitude low-frequency can both effectively control, the gap that effectively reduces the crucial connection part that common vibration causes changes; (5) huge molecular weight and high molecular viscosity make sealing more reliable than normal hydraulic oil, are difficult for leaking.(6) do not need decision-making and the driving of extraneous control system, can adapt to the suffered randomness natural disaster of transmission tower.
Description of drawings
Fig. 1 is the bidirectional elastic damper basic structure schematic representation based on macromolecular material;
Fig. 2 is the A section enlarged view of Fig. 1.
Among the figure: 1 is that spherical plain bearing rod end 2 is cylinder barrel protecgulum for piston 8 for polymer damping material 9 for damping cavity 7 for cylinder barrel bonnet 6 for flange-cooled cylinder barrel 5 for piston rod 4 for piston rod sheath 3.
Embodiment
As shown in Figure 1, the bidirectional elastic damper based on macromolecular material that the utility model provides, comprise piston cylinder assembly, piston cylinder assembly specifically comprises piston rod 3 and with the cylinder barrel 4 of bonnet 5, the bar hole that piston rod 3 passes cylinder barrel bottom protecgulum 9 puts in cylinder barrel damping cavity 6, the front end of piston rod 3 is piston 7, also be provided with piston rod sheath 2 at cylinder barrel 4 protecgulums 9, and adopt sunk screw to be connected with cylinder barrel, piston rod 3 rear rod ends are provided with joint shaft bearing, bonnet 5 is provided with the connection toggle, rod end also is provided with joint shaft bearing, piston ante-chamber and back cavity in the cylinder barrel of piston cylinder assembly are full of polymer damping material, and the outer body of cylinder barrel is provided with radiating structure, and it is protruding stupefied for the outer body of cylinder barrel is provided with many ring-types.
Claims (2)
1. bidirectional elastic damper based on macromolecular material, comprise piston cylinder assembly, it is characterized in that: described piston cylinder assembly comprises piston rod (3) and with the cylinder barrel (4) of bonnet (5), the bar hole that piston rod passes cylinder barrel bottom protecgulum (9) puts in cylinder barrel damping cavity (6), the front end of piston rod is piston (7), rod end is provided with joint shaft bearing behind the piston rod, bonnet is provided with the connection toggle, connect the toggle rod end and also be provided with joint shaft bearing, piston ante-chamber and back cavity in the cylinder barrel of described piston cylinder assembly are full of polymer damping material.
2. the bidirectional elastic damper based on macromolecular material according to claim 1 is characterized in that: it is protruding stupefied that the outer body of described cylinder barrel is provided with many ring-types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358009 CN202867682U (en) | 2012-07-23 | 2012-07-23 | Bidirectional elastic damper based on polymer material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358009 CN202867682U (en) | 2012-07-23 | 2012-07-23 | Bidirectional elastic damper based on polymer material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867682U true CN202867682U (en) | 2013-04-10 |
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ID=48034404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358009 Expired - Lifetime CN202867682U (en) | 2012-07-23 | 2012-07-23 | Bidirectional elastic damper based on polymer material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153476A (en) * | 2014-05-30 | 2014-11-19 | 重庆大学 | Piston type damper filled with saturated sand |
| CN109372940A (en) * | 2018-11-30 | 2019-02-22 | 重庆怡之驰机械有限公司 | The mounting bracket of gasoline engine |
-
2012
- 2012-07-23 CN CN 201220358009 patent/CN202867682U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153476A (en) * | 2014-05-30 | 2014-11-19 | 重庆大学 | Piston type damper filled with saturated sand |
| CN109372940A (en) * | 2018-11-30 | 2019-02-22 | 重庆怡之驰机械有限公司 | The mounting bracket of gasoline engine |
| CN109372940B (en) * | 2018-11-30 | 2020-05-05 | 重庆怡之驰机械有限公司 | Mounting bracket for gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |