CN111779794A - Flywheel impact vibration damper under large impact environment - Google Patents
Flywheel impact vibration damper under large impact environment Download PDFInfo
- Publication number
- CN111779794A CN111779794A CN202010202082.3A CN202010202082A CN111779794A CN 111779794 A CN111779794 A CN 111779794A CN 202010202082 A CN202010202082 A CN 202010202082A CN 111779794 A CN111779794 A CN 111779794A
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- Prior art keywords
- damping
- flywheel
- impact
- rubber
- pad
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
Abstract
The utility model provides a flywheel impact damping device under big impact environment, including damping support, the metal damping pad, the rubber damping pad, fastening screw, regard damping support as the main part, contact through the metal damping pad with the mars detector cabin body, contact through rubber damping pad and flywheel simultaneously, can reduce the response of flywheel under big impact environment effectively, reduce bearing assembly in the flywheel, the risk of optical code dish subassembly inefficacy, damping device overall structure is simple, and stability is good, and the flywheel after adopting the device does not influence former installation interface and overall layout, be applicable to the flywheel damping under the big impact environment.
Description
Technical Field
The invention relates to a flywheel impact vibration reduction device used in a large impact environment, and belongs to the technical field of environment adaptability design.
Background
The first Mars detection launching task in China needs to be adapted to the launching condition of a CZ-5 carrier rocket, a 12-detonating bolt is used on a rocket connecting surface, the detonating impact of the detonating bolt has great influence on the Mars detector, a great transient load is generated instantly, and great impact response is generated on structures and equipment near a compression point. Statistics show that explosive impact environments cause considerable failure of spacecraft.
The Mars detector is provided with 5 flywheels which are all satellite mature application products, and considering factors such as flywheel use configuration, cable trend, thermal environment and the like, the installation positions of 4 flywheels are very close to an explosion bolt, the high frequency band of the impact response is as high as 2500g, and the magnitude of the impact response exceeds that of a bearing assembly and an optical code disc assembly in the flywheels. Therefore, some measures for slowing down the impact load response are needed, including reducing the load at the impact source, optimizing the impact load transmission path, improving the impact resistance of the single machine, and the like.
Disclosure of Invention
The technical problem solved by the invention is as follows: aiming at the problem that the flywheel close to the explosive bolt on the surface of the cabin body of the Mars detector is too large in impact force and difficult to bear in the prior art, the flywheel impact vibration reduction device used in the large impact environment is provided.
The technical scheme for solving the technical problems is as follows:
the utility model provides a flywheel impact vibration damper for under big impact environment, includes damping support, metal damping pad, rubber damping pad, fastening screw for reducing the damping support of the flywheel impact force that receives when mars detector surface operation sets up between flywheel and mars detector, damping support one end surface and flywheel fixed connection, other end surface are connected in the mars detector cabin body, and the rubber damping pad that further weakens the flywheel impact force that receives sets up between damping support and flywheel and hugs closely the flywheel surface, and the metal damping pad that carries out the damping protection to the mars detector surface cabin body sets up between damping support and the mars detector cabin body and hugs closely mars detector cabin body surface, damping support both ends surface all is provided with the mounting hole, fastening screw is respectively through metal damping pad center through-hole and rubber damping pad mounting hole to damping support, The flywheel and the Mars detector are fixed.
4-6 mounting holes are formed in the surfaces of the two ends of the vibration reduction support, and the sizes of the mounting holes in the surfaces of the two ends are the same.
The mounting holes in the surfaces of the two ends of the vibration reduction support are matched with fastening screws, and the fastening screws are matched with central through holes of the metal vibration reduction pads.
The rubber vibration damping pad is provided with mounting through holes, the mounting through holes are matched with the fastening screws, and the number of the mounting through holes is equal to that of the mounting holes in the surfaces of the two ends of the vibration damping support.
The metal vibration damping pad and the rubber vibration damping pad are both annular vibration damping pads.
The metal damping pad is made of aluminum 2A12 or copper H62 or stainless steel 1Cr18Ni9Ti, and the thickness of the metal damping pad is 1 mm.
The rubber vibration damping pad is made of rubber G100.
The damping support is made of aluminum 2A12 and comprises two end connecting surfaces and supporting columns, wherein the connecting surfaces are respectively arranged on two sides of the supporting columns and are respectively connected with the flywheel and the spark detector.
And a damping gasket is arranged between the rubber damping pad and the flywheel, and a central through hole of the rubber damping pad can be filled with a heat conduction material and is assisted to increase the heat conduction performance through the damping gasket.
Compared with the prior art, the invention has the advantages that:
according to the flywheel impact vibration damping device used in the large impact environment, the vibration damping support is arranged between the flywheel and the surface of the satellite cabin body for auxiliary vibration damping, different vibration damping gaskets are arranged at the contact positions of the vibration damping support, the flywheel and the cabin body, so that the response magnitude of impact load of the flywheel is effectively reduced, on the basis of determining the installation layout of the flywheel, the original structural state and installation layout of the flywheel are not required to be changed, the installation precision and rigidity requirements of the flywheel can be met, the vibration damping effect of low frequency bands and high frequency bands is improved, the configuration is simple, the reliability is high, and the flywheel impact vibration damping device has excellent strength and rigidity characteristics.
Drawings
FIG. 1 is a schematic view of a vibration damping mount according to the present invention;
FIG. 2 is a schematic view of a vibration damping shim according to the present invention;
FIG. 3 is a schematic view of the structure of the rubber vibration damping pad provided by the invention;
FIG. 4 is a schematic view of a metal damping pad according to the present invention;
FIG. 5 is a schematic view of the overall structure of the vibration damping device provided by the present invention;
FIG. 6 is a schematic view of the installation of the metal vibration damping pad provided by the present invention;
Detailed Description
A flywheel impact damping device used in large impact environment can reduce the impact force generated by the explosion bolt operation of the flywheel on the surface of a Mars detector and protect the flywheel, the damping device is arranged between the flywheel and the surface cabin of the Mars detector, and mainly comprises a damping bracket, a metal damping pad, a rubber damping pad and a fastening screw, wherein the damping bracket mainly comprises two end connecting surfaces and a supporting column, the connecting surfaces are respectively arranged at two sides of the supporting column and are respectively connected with the flywheel and the Mars detector, one side close to the flywheel is called an upper surface, one side close to the surface of the Mars detector is a lower surface, mounting holes are respectively arranged on the two end connecting surfaces, a rubber damping pad is arranged between the surface of one end of the damping bracket facing the flywheel and the flywheel, and the rubber damping pad for weakening the impact force applied to the flywheel is arranged between the damping bracket and the flywheel, the metal vibration damping pad is arranged between the vibration damping support and the mars detector cabin body and is tightly attached to the surface of the mars detector cabin body, and vibration damping protection is carried out on the mars detector surface cabin body.
4-6 mounting holes are formed in the surfaces of the two ends of the vibration damping support, the sizes of the mounting holes in the surfaces of the two ends are the same, meanwhile, the mounting holes in the surfaces of the two ends of the vibration damping support are matched with fastening screws, and the fastening screws are matched with central through holes of the metal vibration damping pads;
on the rubber vibration damping pad, be provided with the installation through-hole, the installation through-hole matches each other with fastening screw, and installation through-hole quantity is the same with damping support both ends mounting hole quantity on the surface.
The metal vibration damping pad and the rubber vibration damping pad are both annular vibration damping pads, the metal vibration damping pad is made of aluminum 2A12 or copper H62 or stainless steel 1Cr18Ni9Ti, the rubber vibration damping pad is made of rubber G100, the connecting part of the two end surfaces of each vibration damping device is provided with a mounting hole, the rubber vibration damping pad is provided with a through hole, and the specification of a fastening screw is determined according to the parameters of the flywheel.
The following is further illustrated with reference to specific examples:
in this embodiment, the main structure of the damping device for damping the impact applied to the flywheel includes:
as shown in fig. 1, a damping bracket made of aluminum alloy 2a12 has certain rigidity, and the mounting interfaces of the damping bracket and the detector cabin are consistent with the mounting interface of the flywheel, so that the flywheel is ensured to be unchanged in the overall mounting interface after the damping device is added;
the damping material also comprises a rubber damping pad and a metal damping pad, as shown in figures 3 and 4, the rubber damping pad is G100, and the material has the advantages of good aging performance, radiation resistance, wide temperature adaptation range, good rigidity and high damping property, and can play a good damping effect.
The metal vibration damping pad is structurally shown in fig. 4, and in order to ensure the impact buffering performance of the metal vibration damping pad, the metal vibration damping pad should work in a flexible section of a characteristic curve, and can play an excellent vibration damping role under the action of a given screw tightening torque.
Meanwhile, as shown in fig. 2, a damping gasket is arranged between the rubber damping pad and the flywheel, the damping gasket, the rubber damping pad and the damping bracket are completely aligned with each other in the position of the mounting hole facing the end face of one side of the flywheel, and the damping gasket, the rubber damping pad and the damping bracket have the same specification and can be matched with a fastening screw.
The overall structure of the damping device is shown in fig. 5, wherein 1 is a damping bracket, 2 is a damping pad, 3 is a rubber damping pad, 4 is a metal damping pad, 5 is a flywheel, 6 is a spark detector cabin body, and 7 is a fastening screw.
As shown in fig. 6, the metal rubber pad is mounted.
The specifications of the fastening screws are matched with the central through holes of the metal vibration damping pads, and the number of the required metal vibration damping pads is equal to the number of the fastening screws and the number of the mounting holes on the end face of one side of the vibration damping support, and is 4-6.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (9)
1. A flywheel impact damping device for use in large impact environments is characterized in that: including damping support, metal damping pad, rubber damping pad, fastening screw for reducing the damping support of the impact force that the flywheel receives when mars detector surface operation sets up between flywheel and mars detector, damping support one end surface and flywheel fixed connection, other end surface in mars detector cabin body coupling, the rubber damping pad that further weakens the impact force that the flywheel receives sets up between damping support and flywheel and hugs closely the flywheel surface, and the metal damping pad that carries out the damping protection to the mars detector surface cabin body sets up between damping support and the mars detector cabin body and hugs closely mars detector cabin body surface, damping support both ends surface all is provided with the mounting hole, fastening screw fixes damping support, flywheel, mars detector through metal damping pad center through-hole and rubber damping pad mounting hole respectively.
2. A flywheel impact damping device for use in high impact environments as defined in claim 1, wherein: 4-6 mounting holes are formed in the surfaces of the two ends of the vibration reduction support, and the sizes of the mounting holes in the surfaces of the two ends are the same.
3. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the mounting holes in the surfaces of the two ends of the vibration reduction support are matched with fastening screws, and the fastening screws are matched with central through holes of the metal vibration reduction pads.
4. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the rubber vibration damping pad is provided with mounting through holes, the mounting through holes are matched with the fastening screws, and the number of the mounting through holes is equal to that of the mounting holes in the surfaces of the two ends of the vibration damping support.
5. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the metal vibration damping pad and the rubber vibration damping pad are both annular vibration damping pads.
6. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the metal damping pad is made of aluminum 2A12 or copper H62 or stainless steel 1Cr18Ni9Ti, and the thickness of the metal damping pad is 1 mm.
7. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the rubber vibration damping pad is made of rubber G100.
8. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: the damping support is made of aluminum 2A12 and comprises two end connecting surfaces and supporting columns, wherein the connecting surfaces are respectively arranged on two sides of the supporting columns and are respectively connected with the flywheel and the spark detector.
9. A flywheel impact damping device for use in high impact environments according to claim 2, wherein: and a damping gasket is arranged between the rubber damping pad and the flywheel, and a central through hole of the rubber damping pad can be filled with a heat conduction material and is assisted to increase the heat conduction performance through the damping gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202082.3A CN111779794A (en) | 2020-03-20 | 2020-03-20 | Flywheel impact vibration damper under large impact environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010202082.3A CN111779794A (en) | 2020-03-20 | 2020-03-20 | Flywheel impact vibration damper under large impact environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111779794A true CN111779794A (en) | 2020-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010202082.3A Pending CN111779794A (en) | 2020-03-20 | 2020-03-20 | Flywheel impact vibration damper under large impact environment |
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| CN (1) | CN111779794A (en) |
Citations (17)
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| DE102004037178A1 (en) * | 2004-07-30 | 2006-03-23 | Mtu Friedrichshafen Gmbh | Internal combustion engine has flange and/or coupling plate made from electrically non-conducting material with which flywheel and hence crankshaft are electrically isolated from machine, e.g. generator, to be driven |
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2020
- 2020-03-20 CN CN202010202082.3A patent/CN111779794A/en active Pending
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Application publication date: 20201016 |