A kind of compound vibration-damper
Technical field
The utility model relates to electronic instrument vibration-proof equipment technical field, relates in particular to a kind of NEW TYPE OF COMPOSITE vibration damper with electric linkage function.
Background technique
The vibration damper using is at present all to adopt single block rubber or spring assembly to form conventionally.The two ends of vibration damper are cecum, for fixing by the object of vibration damping.
If publication number is CN2752542, within open day, be that the Chinese patent literature on January 18th, 2006 discloses a kind of nonlinear absorber for the transportation of large-scale precision optical instrument.This model utility is by base, and supported spring, holds out against spring composition.Supported spring is in a row installed on base, for the bottom supporting of instrument, is adjusted the arrangement of supported spring and the quantity of every row's supported spring according to the shape of supported instrument bottom and the specification of spring; In the horizontal direction, the circumferentially multipair spring that holds out against laterally withstands or strains instrument.It is paired holding out against spring, in a direction, a pair of spring that holds out against is installed.This model utility and existing linear vibration damper are compared, not only reduce shock-absorbing spring height, make large-scale precision optical instrument packing external form height can not exceed shipping height restriction, also need not in transportation process, to select transit route, the fixing of instrument once completed simultaneously, operate without supercargo midway.
But adopt that the vibration damper rigidity of form of springs is large, operating noise is high, supporting power is little, shape and stable mechanical performance poor.
Adopt the vibration damper of block rubber form aspect heat-resisting quantity and oil resistance, being difficult to again control, such structural type has determined all cannot in vibration damping, realize electrical connection.
Model utility content
The utility model is intended to for the existing defect of above-mentioned prior art and deficiency, a kind of compound vibration-damper is provided, the utility model utilizes spring buffer, utilizes rubber absorbing vibrational energy, has realized and has used good vibration damping and the assimilation effect of small volume vibration damper to large load.
The utility model is by adopting following technical proposals to realize:
A kind of compound vibration-damper, is characterized in that: comprise the combination damper unit being jointly made up of the rubber pipe of metal coil spring and outside sulfuration thereof; Combination damper unit two ends are provided with the unit that is rotatably connected, and the unit that is rotatably connected is connected with combination damper unit by fastening screw trip bolt; The described inside, unit that is rotatably connected is fixed with electrical connector, and combination damper unit center is provided with cable passing hole, and spiral cable passes and is connected with the electrical connector at two ends from cable-through hole.
The described electrical connector at the upper and lower two ends of described compound vibration-damper is sealed in respectively the electrical connector Seal cage being positioned on lower union joint.
Described electrical connector and combination damper unit composition wire Seal cage, wire Seal cage keeps sealing with the external world.
Described spiral cable is perfluoroethylene-propylene cable.
Described metal coil spring is Beryllium Bronze Spring.
Described vulcanized rubber is silicone rubber.
The utility model is in oil drilling, the vibration damping of instrument in well and designing.The combined vibration-damping that adopts spring vulcanized rubber, all connections have seal approach, have increased electrical connection path simultaneously, have realized the vibration damping to instrument, have also realized the electrical connection between instrument simultaneously.
The utility model adopts rubber to add the composite structure of spring, has higher load capacity and aximal deformation value, damping noise reduction better effects if, stable working, interval of resonance is short, takes into account vibration damping, isolation, absorption simultaneously, effective to the protection of instrument.
The utility model, because there is electrical connection cable inside, can, in vibration damping, complete electric linkage function.
The material of selection of the present utility model is non-magnetic material, and the needs of reply magnetic susceptibility instrument vibration damping, are applicable to non-magnetic environment.
The utility model two ends are the unit that is rotatably connected, and when use, can fast rotational connect and seal.In being rotatably connected, complete electrical connection.
Compared with prior art, the beneficial effect that the utility model reaches is as follows:
1, the utility model adopts rubber and spring to be sulfided into integral structure, utilizes spring buffer, utilizes rubber absorbing vibrational energy, has realized and has used good vibration damping and the assimilation effect of small volume vibration damper to large load.
2, the utility model adopts non-magnetic material design, is applicable to non-magnetic environment, there is no electromagnetic pollution.
3, the utility model adopts rotary connection structure, is electrically connected in mechanical connection and completes simultaneously.
4, the utility model has cable in adopting, and vibration damping can be realized electrical connection simultaneously.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model.
Mark in figure:
1 for the unit that is rotatably connected, 2 is electrical connector, and 3 is insulation base, and 4 is that spring, 5 is that anti-rotation fastening screw trip bolt, 6 is that vulcanized rubber, 7 is that electrical connector seal ring, 8 is that spiral cable, 9 is that electrical connector tightening nut, 10 is electrical connector pressure mother.
Embodiment
With reference to Figure of description, preferred forms of the present utility model is, as shown in Figure 1, compound vibration-damper comprises that the unit 1 that is rotatably connected is fixed on spring 4 two ends by anti-rotation fastening screw trip bolt 5, and the unit 1 that guarantees to be rotatably connected is fixed with the position of spring 4.At the inner mounting electrical joint 2 in the unit 1 that is rotatably connected, first mounting electrical joint sealing circle 7 on insulation base 3, electrical connector 2 was gone here and there to insulation base 3 from front, at insulation base 3 back side mounting electrical joint tightening nuts 9, then spiral cable 8 is welded on to the afterbody of electrical connector 2, the assembly parts welding seals in the middle of the unit 1 that is rotatably connected, after insulation base 3 puts in place with unit 1 assembling that is rotatably connected, press mother 10 at the mounting electrical joint on unit 1 that is rotatably connected, compress insulation base 3 and electrical connector 2.
Installed after the electrical connector of 1 one end, unit that is rotatably connected, other one end is installed in the same description.Finally vulcanized rubber 6 on spring 4.
The described electrical connector at the upper and lower two ends of compound vibration-damper, respectively in the inside, unit that is rotatably connected, is sealed in chamber after electric connecing.Rubber and spring are sulfided into integral structure, utilize spring buffer, utilize rubber absorbing vibrational energy.The unit 1 that is rotatably connected is fixed on spring 4 two ends by anti-rotation fastening screw trip bolt 5, and fastening screw trip bolt can prevent mutual rotation.The unit that is rotatably connected at two ends is multiple thread Placement, simple operation.
Working procedure is as follows:
One end of vibration damper is fixed on and is connected protection of instrumentation cylinder end, and the other end connects by vibration damping instrument.In vibration environment, one end of vibration damper is fixed on protection of instrumentation cylinder, vibrate, and the other end is with respect to space outerpace transfixion, thereby plays damping effect with protection of instrumentation cylinder.Spring stress arrives compression, absorbing vibrational energy, and attenuation vibration energy, in the time being deflected into the deformation limit of rubber, rubber provides vibration damping support, guarantees amount of deformation and the mechanical stability of spring.Electrical connector is connected with upper and lower instrument all the time, and the axial shape of the internal helicoid cable of vibration damper compensation vibration damper changes, thereby has realized the transmission of carrying out power supply and signal between instrument string in vibration damping.
The utility model is adopted the combined vibration-damping that spring adds rubber, both decays, absorbed vibration, and stable working again can not produce resonance phenomenon.In vibration damping, can be electrically connected, and can in non-magnetic environment, use.