CN206617488U - A kind of piston type particle damped vibration attenuation device - Google Patents
A kind of piston type particle damped vibration attenuation device Download PDFInfo
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- CN206617488U CN206617488U CN201720349181.8U CN201720349181U CN206617488U CN 206617488 U CN206617488 U CN 206617488U CN 201720349181 U CN201720349181 U CN 201720349181U CN 206617488 U CN206617488 U CN 206617488U
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- damper
- piston rod
- cover plate
- guide rod
- particle
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Abstract
The utility model is related to a kind of piston type particle damped vibration attenuation device.The bottom of guide rod (8) is fixedly connected by the screw of screw thread and damper housing (3) blind end, and guide rod (8) lower end is fixedly connected by screw thread with support.The upper end of piston rod (1) couples through cover plate (6) and damper cover (2) with outside mechanical vibrating system, and the bottom kink of piston rod (1) is on guide rod (8) top.Particle damping material (7) is filled up in cavity under cover plate (6).The entirety that piston rod (1) is made up of shaft and revolving body.The lower surface of piston rod (1) is inwardly provided with circular hole along axis, and Circularhole diameter coordinates with guide rod (8) for gap.The utility model is simple and reliable for structure, easily manufactured, cost is low, effectiveness in vibration suppression is stable and operation strategies are wide, larger damping can be produced and size can be damped to it and be adjusted, the vibration damping of periodic vibration equipment is not only suitable for, the vibration damping of impact shock equipment is also applied for.
Description
Technical field
The utility model belongs to piston type granule damper technical field.More particularly to a kind of piston type particle damped vibration attenuation
Device.
Background technology
Particle damping is to be filled into metal either non-metallic particle in one cavity structure by certain packing ratio, is led to
Collision, friction and the momentum-exchange between particle and between particle and cavity inner wall are crossed come the kinetic energy for the system of consuming, so as to reach
To the purpose of vibration damping.It is traditional according to the damping unit number and the difference of damping unit endoparticle number of composition granule damper
Granule damper can be divided into the individual particle impact damper of four classes, i.e. individual unit, the individual particle impact damper of multiple units,
Many granule dampers of individual unit（Or nonobstructive granule damper）And many granule dampers of multiple units.With right
Deepening continuously for particle damping research, has developed out a variety of various forms of granule dampers, has such as overcome directional dependence
Beam type impact damper, particle is wrapped up with soft bag " steamed buns stuffed with sweetened bean paste " damper, with soft material covering chamber wall formed
What impact damper, piston type granule damper, the impact damper with particle vibration damping agent and the particles collision of buffering were damped
Dynamic vibration absorber etc..
Piston type granule damper, such as " a kind of piston type particle damper "（CN103266679A）Patented technology, the skill
Though art has its advantage, also presence damping is smaller and to the uppity defect of size of damping, have impact on its engineer applied.
And for example " a kind of solid particle damper device "（CN104632990A）Patented technology, technology cavity volume when piston rod movement
Volume can change, and damping force is unstable；Its piston rod and particle contact area are small, and immutable with controlling damper damping force
Size.
The content of the invention
The utility model is intended to overcome prior art defect, it is therefore an objective to provide it is a kind of it is simple and reliable for structure, easily manufactured, into
Originally low, effectiveness in vibration suppression is stable and the wide piston type particle damped vibration attenuation device of operation strategies, and the device can produce larger resistance
Buddhist nun, can damp size to it and be adjusted, be not only suitable for the vibration damping of periodic vibration equipment, be also applied for impact shock equipment
Vibration damping.
To achieve the above object, the technical scheme that the utility model is used is：The piston type particle damped vibration attenuation dress
Put including damper housing, particle damping material, cover plate, butterfly spring, piston rod, guide rod and damper cover.
The damper housing is the hollow cylinder that one end is closed, and the center position of blind end is provided with screw, in sky
The openend of heart cylinder is provided with external screw thread, and the housing below the external screw thread is provided with 2 the first passages.Against port
Be provided with interior annular groove at inwall, the distance of the interior annular groove and damper housing bottom for damper body height 90 ~
95%。
The port of damper housing is fixedly connected by screw thread with damper cover, the interior annular groove dress of damper inner walls
There is interior snap ring.Cover plate, the distance of the cover plate and damper housing bottom are housed at the inwall close to damper housing upper
For the 70 ~ 80% of damper body height, butterfly spring is housed between cover plate and interior snap ring.
Guide rod is located at the middle position of damper housing, and the bottom of guide rod passes through screw thread and damper housings close
The screw at end is fixedly connected, and guide rod lower end is fixedly connected by screw thread with support.The upper end of piston rod passes through the center of cover plate
The centre bore of hole and damper cover and outside mechanical vibrating system thread connection, the bottom kink of piston rod is on the guide bar
Portion, the lower end of the piston rod is the 20 ~ 30% of damper body height with the distance of damper housing bottom.By damper shell
Particle damping material is filled up in the cavity that body, cover plate, guide rod and piston rod are surrounded.
The entirety that the piston rod is made up of shaft and revolving body；The revolving body is spheroid or is spheroid or is
Rhombogen.The upper end of piston club body is provided with external screw thread, and the center of piston club body outer wall is provided with outer annular groove；Piston rod
Lower surface is inwardly provided with circular hole along axis, and the Circularhole diameter coordinates with guide rod for gap, and the hole depth of the circular hole is piston
The 70 ~ 80% of pole length；The top of the circular hole is provided with 1 the second passage.
It is bonded with the aperture of damper cover lower plane at the first rubber ring, the aperture of cover plate upper surface and is bonded with the second rubber
Cushion rubber, outer snap ring is arranged in the outer annular groove in the middle part of piston rod, and outer snap ring is located on cover plate.
The particle damping material is shaped as spheroid, a diameter of 0.2~5mm of the spheroid；Particle damping material
Material is one kind in steel, lead, copper and aluminium.
The cover plate is rounded, and cover plate coordinates with damper inner walls for gap.
It is that gap coordinates between the piston rod and cover plate, damper cover.
Due to using above-mentioned technical proposal, the utility model has following good effect compared with existing technical scheme：
Particle damping material is filled with what is surrounded by damper housing, cover plate, guide rod and piston rod in the utility model
Cavity, the elastic force of butterfly spring is acted on particle damping material by cover plate, and particle damping material is unable to free movement, only
It can be moved under the driving of piston rod.The particle of the restrained condition of particle damping material and existing nonobstructive granule damper
The free movement state of damping material is different, and obstructive semi-fluid condition is presented.This obstructive granule damper is increased
Contact force between particle damping material, makes the power consumption increase of the intergranular collision of vibration damping, friction, this improves damper
Damping.Meanwhile, it can adjust damping force by changing the loading of particle damping material, the elastic force of regulation butterfly spring
Size.Therefore the utility model results in larger damping, and size can be damped to it and be adjusted.
Particle damping material in the utility model is in obstructive semi-fluid condition, and piston rod is employed and straight at present
The different structure of bar piston type granule damper, piston-rod lower end portion is rotary structure.The revolving body of underpart of the piston rod increases
The big contact area with particle damping material, when piston rod moves up and down, revolving body promotes particle to be vortexed particle formation
Motion, further increases the damping force of damper.
Piston rod with mechanical vibrating system when making up-down vibration, the damping material motion of driving particle.Shaken for periodicity
It is dynamic, by effects such as the intergranular collision of piston rod and vibration damping, friction and the intergranular collision of vibration damping, frictions come the machinery that dissipates
The energy of vibrational system, to reach the purpose of vibration damping.For impact shock, range of scatter of the impulsive force in particle is wider, makes
More particles produce collision and rubbed come the energy for the mechanical vibrating system that dissipates；Meanwhile, the collision between particle produces particle
Raw small elastic deformation, with certain cushioning effect, reaches the purpose of impact damper system.Because particle damping material is in resistance
The semi-fluid condition of plug property, its damping is larger.Therefore the utility model than existing piston type granule damper result in compared with
Big damping, is not only suitable for the vibration damping of periodic vibration equipment, is also applied for the vibration damping of impact shock equipment.
Guide rod of the present utility model is threadedly secured to the center position of damper housing, underpart of the piston rod empty set
Portion on the guide bar.Butterfly spring is installed in the upper surface of cover plate, with the interior snap ring installed in damper inner walls to butterfly
Spring carries out axially position.Outer snap ring installed in piston rod is pasted onto damping to the up and down motion position-limiting action of piston rod
Second rubber of the first rubber blanket and cover plate upper surface aperture at device lid lower plane aperture paves cushioning effect.Piston-rod lower end
Portion is rotary structure, is coordinated between the centre bore of bottom and the face of cylinder on guide rod top for gap, piston rod can be along guiding
Rod axis make up-down vibration with mechanical vibrating system, and the damping material motion of driving particle is intergranular with vibration damping by piston rod
Collision, friction and the intergranular collision of vibration damping, friction etc. act on producing required damping.Therefore the utility model is simple in construction
Reliably, easily manufactured and cost is low.
The cavity that the centre bore of the underpart of the piston rod is formed after coordinating with guide rod top passes through the in the middle part of piston rod
Second passage of one passage and damper housing upper is communicated with the air outside granule damper, it is ensured that the pressure in cavity
Power change does not influence the up and down motion of piston rod.
Therefore, the utility model is simple and reliable for structure, easily manufactured, cost is low, effectiveness in vibration suppression is stable and operation strategies wide,
Larger damping can be produced and size can be damped to it and be adjusted, the vibration damping of periodic vibration equipment is not only suitable for,
Suitable for the vibration damping of impact shock equipment.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model；
Fig. 2 is a kind of structural representation of piston rod 1 in Fig. 1；
Fig. 3 is another structural representation of piston rod 1 in Fig. 1.
Embodiment
The utility model will be further described with reference to the accompanying drawings and detailed description, not to its protection domain
Limitation.
Embodiment 1
A kind of piston type particle damped vibration attenuation device.The piston type particle damped vibration attenuation device is as shown in figure 1, including resistance
Buddhist nun's device housing 3, particle damping material 7, cover plate 6, butterfly spring 5, piston rod 1, guide rod 8 and damper cover 2.
As shown in figure 1, the damper housing 3 is the hollow cylinder that one end is closed, the center position of blind end is set
There is screw, external screw thread is provided with the openend of hollow cylinder, the housing below the external screw thread is provided with 2 first ventilations
Hole 10.Provided with interior annular groove at port inner wall, the distance of the interior annular groove and the bottom of damper housing 3 is damper shell
The 90 ~ 93% of the height of body 3.
As shown in figure 1, the port of damper housing 3 is fixedly connected by screw thread with damper cover 2, in damper housing 3
The interior annular groove of wall is equipped with interior snap ring 4.Cover plate 6, the cover plate 6 and resistance are housed at the inwall close to the top of damper housing 3
The distance of the bottom of Buddhist nun's device housing 3 is the 70 ~ 75% of the height of damper housing 3, and butterfly spring 5 is housed between cover plate 6 and interior snap ring 4.
As shown in figure 1, guide rod 8 is located at the middle position of damper housing 3, the bottom of guide rod 8 by screw thread with
The screw of the blind end of damper housing 3 is fixedly connected, and the lower end of guide rod 8 is fixedly connected by screw thread with support.Piston rod 1 it is upper
The centre bore and outside mechanical vibrating system thread connection of the centre bore and damper cover 2 through cover plate 6 are held, piston rod 1
Bottom kink is on the top of guide rod 8, and the lower end of the piston rod 1 is that damper housing 3 is high with the distance of the bottom of damper housing 3
The 20 ~ 25% of degree.Particle damping material 7 is filled up in the cavity surrounded by damper housing 3, cover plate 6, guide rod 8 and piston rod 1.
The entirety that the piston rod 1 is made up of shaft and revolving body；As shown in figure 1, the revolving body is spheroid.Piston
The upper end of the shaft of bar 1 is provided with external screw thread, and the center of the shaft outer wall of piston rod 1 is provided with outer annular groove；The lower surface edge of piston rod 1
Axis is inwardly provided with circular hole, and the Circularhole diameter coordinates with guide rod 8 for gap, and the hole depth of the circular hole is the length of piston rod 1
70 ~ 75%；The top of the circular hole is provided with 1 the second passage 12.
As shown in figure 1, the first rubber ring 13 is bonded with the aperture of the lower plane of damper cover 2, the aperture of the upper surface of cover plate 6
Place is bonded with the second rubber ring 9, and outer snap ring 11 is arranged in the outer annular groove at the middle part of piston rod 1, and outer snap ring 11 is located at cover plate 6
On.
The particle damping material 7 is shaped as spheroid, a diameter of 0.2~3mm of the spheroid；The particle damps material
The material of material 7 is steel.
The cover plate 6 is rounded, and cover plate 6 coordinates with the inwall of damper housing 3 for gap.
It is that gap coordinates between the piston rod 1 and cover plate 6, damper cover 2.
Embodiment 2
A kind of piston type particle damped vibration attenuation device.In addition to following, remaining be the same as Example 1：
The distance of the interior annular groove and the bottom of damper housing 3 is the 92 ~ 94% of the height of damper housing 3；The cover plate
6 with the distance of the bottom of damper housing 3 is the height of damper housing 3 73 ~ 78%；The lower end of the piston rod 1 and damper shell
The distance of the bottom of body 3 is the 23 ~ 28% of the height of damper housing 3；The hole depth of the circular hole is the 73 ~ 78% of the length of piston rod 1；Institute
State a diameter of 1~4mm of spheroid.
The material of the particle damping material 7 is lead.
As shown in Fig. 2 the revolving body is rhombogen.
Embodiment 3
A kind of piston type particle damped vibration attenuation device.In addition to following, remaining be the same as Example 1：
The distance of the interior annular groove and the bottom of damper housing 3 is the 93 ~ 95% of the height of damper housing 3；The cover plate
6 with the distance of the bottom of damper housing 3 is the height of damper housing 3 75 ~ 80%；The lower end of the piston rod 1 and damper shell
The distance of the bottom of body 3 is the 25 ~ 30% of the height of damper housing 3；The hole depth of the circular hole is the 75 ~ 80% of the length of piston rod 1；Institute
State a diameter of 2~5mm of spheroid.
The material of the particle damping material 7 is copper or aluminium.
As shown in figure 3, the revolving body is spheroid.
Present embodiment has following good effect compared with existing technical scheme：
Particle damping material 7 is filled with by damper housing 3, cover plate 6, guide rod 8 and piston in present embodiment
The cavity that bar 1 is surrounded, the elastic force of butterfly spring 5 is acted on particle damping material 7 by cover plate 6, and particle damping material 7 is not
Energy free movement, can only be moved under the driving of piston rod 1.The restrained condition of particle damping material 7 and existing nonobstructive
The free movement state of the particle damping material 7 of granule damper is different, and obstructive semi-fluid condition is presented.It is this obstructive
Granule damper increases the contact force between particle damping material 7, makes the power consumption increase of the intergranular collision of vibration damping, friction,
This improves the damping of damper.Meanwhile, by changing the loading of particle damping material 7, adjusting the bullet of butterfly spring 5
Property power can adjust the size of damping force.Therefore present embodiment results in larger damping, and it can be damped greatly
It is small to be adjusted.
Particle damping material 7 in present embodiment is in obstructive semi-fluid condition, piston rod 1 employ with
The different structure of current straight-bar piston type granule damper, the bottom of piston rod 1 is rotary structure.The bottom of piston rod 1
Revolving body increases the contact area with particle damping material 7, when piston rod 1 moves up and down, and revolving body promotes particle to make
Particle shape further increases the damping force of damper into eddy motion.
Piston rod 1 with mechanical vibrating system when making up-down vibration, and driving particle damping material 7 is moved.For periodically
Vibration, is dissipated by effects such as the intergranular collision of piston rod 1 and vibration damping, friction and the intergranular collision of vibration damping, frictions
The energy of mechanical vibrating system, to reach the purpose of vibration damping.For impact shock, range of scatter of the impulsive force in particle is more
Extensively, more particles are made to produce collision and rub come the energy for the mechanical vibrating system that dissipates；Meanwhile, the collision between particle makes
Grain produces small elastic deformation, with certain cushioning effect, reaches the purpose of impact damper system.Due to particle damping material 7
In obstructive semi-fluid condition, its damping is larger.Therefore present embodiment is than existing piston type granule damper
Larger damping is resulted in, the vibration damping of periodic vibration equipment is not only suitable for, the vibration damping of impact shock equipment is also applied for.This
The guide rod 8 of embodiment is threadedly secured to the center position of damper housing 3, and the bottom empty set of piston rod 1 exists
The top of guide rod 8.Butterfly spring 5 is installed in the upper surface of cover plate 6, with the interior snap ring 4 installed in the inwall of damper housing 3 to butterfly
Shape spring 5 carries out axially position.Outer snap ring 11 installed in piston rod 1 is pasted to the up and down motion position-limiting action of piston rod 1
9 bufferings of the second rubber blanket of the first rubber blanket 13 and the upper surface aperture of cover plate 6 at the lower plane aperture of damper cover 2 are made
With.The bottom of piston rod 1 is rotary structure, is coordinated between the centre bore of bottom and the face of cylinder on the top of guide rod 8 for gap,
Piston rod 1 with mechanical vibrating system can make up-down vibration along the axis of guide rod 8, and driving particle damping material 7 is moved, and passes through piston
Bar 1 and the intergranular collision of vibration damping, friction and the intergranular collision of vibration damping, friction etc. act on producing required damping.Therefore
Present embodiment is simple and reliable for structure, easily manufactured and cost is low.
The cavity that the centre bore of the bottom of piston rod 1 is formed after coordinating with the top of guide rod 8 passes through the middle part of piston rod 1
First passage 10 and second passage 12 on the top of damper housing 3 are communicated with the air outside granule damper, it is ensured that empty
Pressure change in chamber does not influence the up and down motion of piston rod 1.
Therefore, present embodiment is simple and reliable for structure, easily manufactured, cost is low, effectiveness in vibration suppression is stable and uses model
Enclose wide, larger damping can be produced and size can be damped to it be adjusted, be not only suitable for subtracting for periodic vibration equipment
Shake, be also applied for the vibration damping of impact shock equipment.
Claims (4)
1. a kind of piston type particle damped vibration attenuation device, it is characterised in that the piston type particle damped vibration attenuation device includes damping
Device housing (3), particle damping material (7), cover plate (6), butterfly spring (5), piston rod (1), guide rod (8) and damper cover
(2)；
The damper housing (3) is the hollow cylinder that one end is closed, and the center position of blind end is provided with screw, hollow
The openend of cylinder is provided with external screw thread, and the housing below the external screw thread is provided with 2 the first passages (10)；Against end
Provided with interior annular groove at intraoral wall, the distance of the interior annular groove and damper housing (3) bottom is damper housing (3) height
90~95%；
The port of damper housing (3) is fixedly connected by screw thread with damper cover (2), the inner ring of damper housing (3) inwall
Shape groove is equipped with interior snap ring (4)；Cover plate (6), the cover plate (6) and resistance are being housed at the inwall on damper housing (3) top
The distance of Buddhist nun's device housing (3) bottom is the 70~80% of damper housing (3) height, and butterfly is housed between cover plate (6) and interior snap ring (4)
Shape spring (5)；
Guide rod (8) is located at the middle position of damper housing (3), and the bottom of guide rod (8) passes through screw thread and damper shell
The screw of body (3) blind end is fixedly connected, and guide rod (8) lower end is fixedly connected by screw thread with support；The upper end of piston rod (1)
Through the centre bore and the centre bore and outside mechanical vibrating system thread connection, piston rod of damper cover (2) of cover plate (6)
(1) bottom kink is resistance with the distance of damper housing (3) bottom in guide rod (8) top, the lower end of the piston rod (1)
The 20~30% of Buddhist nun's device housing (3) height；Surrounded by damper housing (3), cover plate (6), guide rod (8) and piston rod (1)
Particle damping material (7) is filled up in cavity；
The entirety that the piston rod (1) is made up of shaft and revolving body；The revolving body is spheroid or is spheroid or is
Rhombogen；The upper end of piston rod (1) shaft is provided with external screw thread, and the center of piston rod (1) shaft outer wall is provided with outer annular groove；It is living
The lower surface of stopper rod (1) is inwardly provided with circular hole along axis, and the Circularhole diameter coordinates with guide rod (8) for gap, the circular hole
Hole depth be piston rod (1) length 70~80%；The top of the circular hole is provided with 1 the second passage (12)；
It is bonded with the first rubber ring (13), the aperture of cover plate (6) upper surface and is bonded with the aperture of damper cover (2) lower plane
Second rubber ring (9), outer snap ring (11) is arranged in the outer annular groove in the middle part of piston rod (1), and outer snap ring (11) is located at cover plate (6)
On.
2. piston type particle damped vibration attenuation device according to claim 1, it is characterised in that the particle damping material (7)
Be shaped as spheroid, a diameter of 0.2~5mm of the spheroid；The material of particle damping material (7) is in steel, lead, copper and aluminium
It is a kind of.
3. piston type particle damped vibration attenuation device according to claim 1, it is characterised in that the cover plate (6) is rounded, lid
Plate (6) coordinates with damper housing (3) inwall for gap.
4. piston type particle damped vibration attenuation device according to claim 1, it is characterised in that the piston rod (1) and cover plate
(6) it is, that gap coordinates between damper cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349181.8U CN206617488U (en) | 2017-04-05 | 2017-04-05 | A kind of piston type particle damped vibration attenuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720349181.8U CN206617488U (en) | 2017-04-05 | 2017-04-05 | A kind of piston type particle damped vibration attenuation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617488U true CN206617488U (en) | 2017-11-07 |
Family
ID=60235529
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720349181.8U Expired - Fee Related CN206617488U (en) | 2017-04-05 | 2017-04-05 | A kind of piston type particle damped vibration attenuation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206617488U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917840A (en) * | 2017-04-05 | 2017-07-04 | 武汉科技大学 | A kind of obstructive piston type granule damper |
| CN108049402A (en) * | 2018-01-25 | 2018-05-18 | 西南科技大学 | Prestressed anchor |
| CN108443325A (en) * | 2018-04-02 | 2018-08-24 | 江苏理工学院 | Impact damper for high-speed rotating machine |
| CN114033824A (en) * | 2021-11-04 | 2022-02-11 | 中国船舶重工集团公司第七一九研究所 | Honeycomb structure rotor granule vibration damper |
-
2017
- 2017-04-05 CN CN201720349181.8U patent/CN206617488U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917840A (en) * | 2017-04-05 | 2017-07-04 | 武汉科技大学 | A kind of obstructive piston type granule damper |
| CN108049402A (en) * | 2018-01-25 | 2018-05-18 | 西南科技大学 | Prestressed anchor |
| CN108443325A (en) * | 2018-04-02 | 2018-08-24 | 江苏理工学院 | Impact damper for high-speed rotating machine |
| CN114033824A (en) * | 2021-11-04 | 2022-02-11 | 中国船舶重工集团公司第七一九研究所 | Honeycomb structure rotor granule vibration damper |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20180405 |
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| CF01 | Termination of patent right due to non-payment of annual fee |