CN105526293A - Frequency-adjustable composite shock absorber based on mobile support - Google Patents
Frequency-adjustable composite shock absorber based on mobile support Download PDFInfo
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- CN105526293A CN105526293A CN201610053639.5A CN201610053639A CN105526293A CN 105526293 A CN105526293 A CN 105526293A CN 201610053639 A CN201610053639 A CN 201610053639A CN 105526293 A CN105526293 A CN 105526293A
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- movable support
- frequency
- leaf spring
- feed screw
- guide
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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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a frequency-adjustable composite shock absorber based on mobile support. The frequency-adjustable composite shock absorber comprises a guide rail plate, two mobile supporting bases, a plate spring, a middle supporting plate and a space adjusting mechanism. The guide rail plate is provided with a linear guide rail. The two mobile supporting bases are arranged on the linear guide rail. The two ends of the plate spring are supported on the two mobile supporting bases in a sliding mode correspondingly. The lower portion of the middle supporting plate and the middle of the plate spring are fixed. The space adjusting mechanism is used for adjusting the distance between the two mobile supporting bases. According to the frequency-adjustable composite shock absorber based on mobile support, the space between the supporting positions of the two ends of the plate spring is adjusted by adjusting the distance between the two mobile supporting bases, so that the effective working segment length of the plate spring is changed, then the effective working stiffness of the plate spring is changed, and frequency adjustment of the shock absorber is achieved; the structure for achieving stiffness adjustment is simple and low in cost; in addition, the combination assembling mode of the independent plate spring and the supporting parts is adopted by the stiffness adjustment part, the characteristic of the long service life of the plate spring is made full use of, and thus the long service life of the shock absorber is ensured.
Description
Technical field
The technical field of the vibration damping that the invention belongs to, is specifically related to a kind of frequency-adjustable compound vibration-damper based on movable support.
Background technique
The vibration that vibration damper is mainly used in reducing vibration source exports, thus noise-decreasing and the impact to miscellaneous part.Common vibration damper mostly is the non-adjustable nodal pattern of rigidity, and namely the natural frequency of vibration damper is fixed, unadjustable.In the engineer applied of reality, often there is inconvenience in the nonadjustable vibration dampers of dynamic characteristic such as above-mentioned rigidity frequency.Such as, the vibration characteristics of main equipment and its platform laid have much relations, adopt rigidity non-adjustable nodal pattern vibration damper that equipment may be caused cannot to reach original design objective in actual use occasion.The mode adopting the vibration damper of many group different-stiffness specifications to carry out on-the-spot coupling can bring many difficulties to the Installation and Debugging of physical device again.Thus, the vibration damper that the dynamic characteristic such as rigidity frequency is adjustable contributes to evading the problems referred to above.
Adjustable shock disclosed in Chinese Patent Application No. 201410169456.0, its way of realization is traditional elastic element parallel connection, need to arrange many group elastic elements and supporting modulator, cost is higher, and the vibration damper of this form can not realize the continuously adjustabe of vibration damper work rigidity, the discrete work stiffness tuning preset can only be realized.
Compound bump leveller disclosed in Chinese Patent Application No. 201410299504.8, its main deficiency existed has: (1) stiffness tuning unit adopts magnetic rheology elastic body, and control comparatively complicated, cost is higher; (2) quality adjustment unit adopts liquor pump to change liquid reserves and then changes the mode of quality, the response time of regulon is longer, and need extra to increase the bulky elements such as water storage box, be unfavorable for its use in engineering, cause its restricted application.
The subject matter that vibration damper disclosed in Chinese Patent Application No. 201410462858.X exists is: adopt magnetic rheology elastic body mode to regulate rigidity, higher to the requirement of control system, and holistic cost is higher, limits its using scope.
Above-mentioned discussion content object be to reader introduce may to below by the All aspects of of technology relevant for the All aspects of of the present invention be described and/or advocate, believe that this discussion content contributes to for reader with background's information, to be conducive to understanding All aspects of of the present invention better, therefore, should be appreciated that it is discuss to read these with this angle, instead of admit prior art.
Summary of the invention
The object of the invention is to avoid deficiency of the prior art and provide a kind of vibration damper, it adopts the regulation scheme of low cost to realize the combined vibration-damping of height frequency in broad frequency band.
Object of the present invention is achieved through the following technical solutions:
A kind of frequency-adjustable compound vibration-damper based on movable support is provided, comprise guide-rail plate, two movable support seats, leaf spring, middle dunnage, distance regulating mechanisms, described guide-rail plate is provided with linear rail, described two movable support seats are slidably disposed on linear rail, the two ends of described leaf spring are supported on two movable support seats respectively slidably, the bottom of described middle dunnage and the middle part of described leaf spring are fixed, and described distance regulating mechanism is for regulating the distance between two movable support seats.
Wherein, described distance regulating mechanism comprises two feed screw nut's seats, two-way feed screw mandrel, feed screw nut's seat is arranged on a movable support seat, half section, a left side, half section, the right side of two-way feed screw mandrel are respectively left-handed thread, right-handed thread, and half section, a left side, half section, the right side of two-way feed screw mandrel coordinate with the screw on feed screw nut's seat respectively.
Wherein, described movable support seat is provided with supporting pin, and described leaf spring is set up on supporting pin.
Wherein, described leaf spring is two panels, is arranged in parallel up and down, is provided with a pair clamping voussoir and clamping bolt group between the middle part of two panels leaf spring, position, hole is offered in the bottom of described middle dunnage, clamps the Kong Weizhong that two panels leaf spring is fixed on middle dunnage by voussoir described in the wedging of described clamping bolt group.
Wherein, also comprise two collateral faggings, top limiting board, described collateral fagging fixedly erects at the two ends of described guide-rail plate, limiting board two ends, described top are fixed on the upper end of collateral fagging, described top limiting board is provided with pilot hole position, described middle dunnage is through described pilot hole position, and the guiding of above-below direction is carried out to described middle dunnage in described pilot hole position.
Wherein, described collateral fagging is provided with adjustment hole, the end of described two-way feed screw mandrel is stretched out from described adjustment hole.
Wherein, described two movable support seats are respectively arranged with guide holder, are provided with directional post between described two guide holders, the two end supports of described directional post is on described collateral fagging.
Wherein, also comprise pedestal, described guide-rail plate is arranged on described pedestal, is provided with damping rubber cushion between guide-rail plate and pedestal.
Wherein, the top of described middle dunnage is provided with by vibration damping main frame leg.
Owing to have employed above-mentioned structure, frequency-adjustable compound vibration-damper based on movable support provided by the invention, comprise guide-rail plate, two movable support seats, leaf spring, middle dunnage, distance regulating mechanism, described guide-rail plate is provided with linear rail, described two movable support seats are slidably disposed on linear rail, the two ends of described leaf spring are supported on two movable support seats respectively slidably, the bottom of described middle dunnage and the middle part of described leaf spring are fixed, described distance regulating mechanism is for regulating the distance between two movable support seats, the present invention adopts movable support seat arranged in pairs as the two end supports of leaf spring, the distance coming between regulator plate both ends of the spring Support Position by regulating the distance between two movable support seats, thus change effective active section length of leaf spring, and then change effective work rigidity of leaf spring, realize the frequency adjustment of vibration damper.The present invention realizes that the structure of stiffness tuning is simple, cost is lower, and stiffness tuning part adopts independent plate spring and support member group to attach together the mode of joining, and takes full advantage of the long service live feature of leaf spring, ensure that the long service live of vibration damper.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the stereogram of the frequency-adjustable compound vibration-damper based on movable support.
Fig. 2 is the sectional view of the frequency-adjustable compound vibration-damper based on movable support.
Fig. 3 is the enlarged view of part in Fig. 2.
Fig. 4 is one of internal structure stereogram of frequency-adjustable compound vibration-damper based on movable support.
Fig. 5 is the internal structure stereogram two of the frequency-adjustable compound vibration-damper based on movable support.
Embodiment
Technological scheme of the present invention is understood better in order to make those skilled in the art, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Core of the present invention is to provide a kind of frequency-adjustable compound vibration-damper based on movable support, and it adopts the regulation scheme of low cost to realize the combined vibration-damping of height frequency in broad frequency band.
As shown in Figures 1 to 5, the frequency-adjustable compound vibration-damper based on movable support of the present invention, mainly includes the assemblies such as supporting mechanism, leaf spring, movable support mechanism, distance regulating mechanism.Wherein, supporting mechanism comprises the parts such as front end panel 201, collateral fagging 202, top limiting board 203; Movable support mechanism includes the parts such as guide-rail plate 301, movable support seat 302, supporting pin 303, guide holder 308, directional post 309; Distance regulating mechanism comprises two-way feed leading screw 307, feed screw nut seat 306.
In supporting mechanism, described guide-rail plate 301 is arranged on described pedestal 5, damping rubber cushion 1 is provided with between guide-rail plate 301 and pedestal 5, described collateral fagging 202 fixedly erects the two ends at described guide-rail plate 301, limiting board 203 two ends, described top are fixed on the upper end of collateral fagging 202, and described front end panel 201, collateral fagging 202, top limiting board 203 are bolted fixing.Described top limiting board 203 be provided with position, hole for limit be connected by vibration damping main frame leg 4 in the moving direction of dunnage 305.Described track base 301 is arranged with damping rubber cushion 1, and is arranged on pedestal 5 by bolt group.
In movable support mechanism, described guide-rail plate 301 is provided with linear rail, described two movable support seats 302 are slidably disposed on linear rail, the two ends of described leaf spring 304 are supported on two movable support seats 302 respectively slidably, described movable support seat 302 is provided with supporting pin 303, and described leaf spring 304 is set up on supporting pin 303, concrete, supporting pin 303 is arranged in the supported hole of movable support seat 302, for dunnage spring 304.The bottom of described middle dunnage 305 and the middle part of described leaf spring 304 are fixed, concrete, described leaf spring 304 is two panels, be arranged in parallel up and down, a pair clamping voussoir 310 and clamping bolt group 311 is provided with between the middle part of two panels leaf spring 304, position, hole is offered in the bottom of described middle dunnage 305, clamps the Kong Weizhong that two panels leaf spring 304 is fixed on middle dunnage 305 by voussoir 310 described in the wedging of described clamping bolt group 310.The top of described middle dunnage 305 is provided with by vibration damping main frame leg 4, describedly to be fixedly connected with described middle dunnage 305 by bolt group Placement by vibration damping main frame leg 4, describedly to be passed to vibration damper of the present invention by the operational vibration of vibration damping main frame by described middle supporting base 305.Described top limiting board 203 is provided with pilot hole position, and described middle dunnage 305 bottom is through described pilot hole position, and the guiding of above-below direction is carried out to described middle dunnage 305 in described pilot hole position.Described two movable support seats 302 are respectively arranged with guide holder 308, are provided with directional post 309 between described two guide holders 308, the two end supports of described directional post 309 is on described collateral fagging 202.Described guide holder 308 and directional post 309 are for limiting the movement direction of described movable support seat 302 better.
Described distance regulating mechanism is for regulating the distance between two movable support seats 302, described distance regulating mechanism comprises two feed screw nut's seats 306, two-way feed screw mandrel 307, feed screw nut's seat 306 is arranged on a movable support seat 302, half section, a left side for two-way feed screw mandrel 307, right half section is respectively left-handed thread, right-handed thread, half section, a left side for two-way feed screw mandrel 307, right half section coordinates with the screw on feed screw nut's seat 306 respectively, two feed screw nut seats are divided into left-handed feed screw nut seat 306 and dextrorotation feed screw nut seat 306, and assemble with two-way feed leading screw 307 and use.Described collateral fagging 202 is provided with adjustment hole, and the end of described two-way feed screw mandrel 307 is stretched out from described adjustment hole, and described in available like this tool into rotation, the extension of two-way feed screw mandrel 307, carries out the adjustment of spacing.
The working procedure of vibration damper of the present invention is: regulate two-way feed leading screw 307 to drive movable support seat 302 locking phase to move to symmetry by rotating, and then the distance between the supporting pin 303 changing on described a pair movable support seat 302, namely change the Support Position spacing of described leaf spring 304.The spacing variation of described leaf spring 304 Support Position will change the work rigidity of leaf spring 304, thus changes the natural frequency of damper system.
Set forth a lot of detail in description above so that fully understand the present invention, but the present invention can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as limiting the scope of the invention.
In a word; those skilled in the art although the present invention illustrates above-mentioned preferred implementation, should illustrate, although can carry out various change and remodeling; unless such change and remodeling deviate from scope of the present invention, otherwise all should be included in protection scope of the present invention.
Claims (9)
1. the frequency-adjustable compound vibration-damper based on movable support, it is characterized in that: comprise guide-rail plate (301), two movable support seats (302), leaf spring (304), middle dunnage (305), distance regulating mechanism, (301) are provided with linear rail to described guide-rail plate, described two movable support seats (302) are slidably disposed on linear rail, the two ends of described leaf spring (304) are supported on two movable support seats (302) respectively slidably, the bottom of described middle dunnage (305) and the middle part of described leaf spring (304) are fixed, described distance regulating mechanism is for regulating the distance between two movable support seats (302).
2. the frequency-adjustable compound vibration-damper based on movable support according to claim 1, it is characterized in that: described distance regulating mechanism comprises two feed screw nut's seats (306), two-way feed screw mandrel (307), feed screw nut's seat (306) is arranged on a movable support seat (302), half section, a left side, half section, the right side of two-way feed screw mandrel (307) are respectively left-handed thread, right-handed thread, and half section, a left side, half section, the right side of two-way feed screw mandrel (307) coordinate with the screw on feed screw nut's seat (306) respectively.
3. the frequency-adjustable compound vibration-damper based on movable support according to claim 1, it is characterized in that: described movable support seat (302) is provided with supporting pin (303), and described leaf spring (304) is set up on supporting pin (303).
4. the frequency-adjustable compound vibration-damper based on movable support according to claim 1, it is characterized in that: described leaf spring (304) is two panels, be arranged in parallel up and down, a pair clamping voussoir (310) and clamping bolt group (311) is provided with between the middle part of two panels leaf spring (304), position, hole is offered in the bottom of described middle dunnage (305), clamps the Kong Weizhong that two panels leaf spring (304) is fixed on middle dunnage (305) by voussoir (310) described in the wedging of described clamping bolt group (310).
5. the frequency-adjustable compound vibration-damper based on movable support according to any one of claim 2 to 4, it is characterized in that: also comprise two collateral faggings (202), top limiting board (203), described collateral fagging (202) fixedly erects the two ends in described guide-rail plate (301), limiting board (203) two ends, described top are fixed on the upper end of collateral fagging (202), described top limiting board (203) is provided with pilot hole position, described middle dunnage (305) is through described pilot hole position, the guiding of above-below direction is carried out to described middle dunnage (305) in described pilot hole position.
6. the frequency-adjustable compound vibration-damper based on movable support according to claim 5, it is characterized in that: described collateral fagging (202) is provided with adjustment hole, the end of described two-way feed screw mandrel (307) is stretched out from described adjustment hole.
7. the frequency-adjustable compound vibration-damper based on movable support according to claim 5, it is characterized in that: described two movable support seats (302) are respectively arranged with guide holder (308), be provided with directional post (309) between described two guide holders (308), the two end supports of described directional post (309) is on described collateral fagging (202).
8. the frequency-adjustable compound vibration-damper based on movable support according to claim 5, it is characterized in that: also comprise pedestal (5), described guide-rail plate (301) is arranged on described pedestal (5), is provided with damping rubber cushion (1) between guide-rail plate (301) and pedestal (5).
9. the frequency-adjustable compound vibration-damper based on movable support according to claim 5, is characterized in that: the top of described middle dunnage (305) is provided with by vibration damping main frame leg (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053639.5A CN105526293B (en) | 2016-01-25 | 2016-01-25 | The adjustable compound vibration-damper of frequency based on mobile support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053639.5A CN105526293B (en) | 2016-01-25 | 2016-01-25 | The adjustable compound vibration-damper of frequency based on mobile support |
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| CN105526293A true CN105526293A (en) | 2016-04-27 |
| CN105526293B CN105526293B (en) | 2018-09-25 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2289285A1 (en) * | 1997-04-17 | 1998-10-22 | Ohio Mattress Company Licensing And Components Group | Composite material spring modules with integrally formed attachment fittings |
| CN2375390Y (en) * | 1999-05-16 | 2000-04-26 | 张胜田 | Spring stiffness adjustable electromagnetic vibrator |
| CN2491641Y (en) * | 2001-07-17 | 2002-05-15 | 山西鸿基实业有限公司 | Connector for gearing and shaft of combing machine |
| CN201300680Y (en) * | 2008-11-28 | 2009-09-02 | 陕西同力重工有限公司 | Balanced suspension device |
| CN201694015U (en) * | 2010-02-04 | 2011-01-05 | 陕西同力重工股份有限公司 | Front suspension device of primary and secondary double-plate spring structure |
| CN202117195U (en) * | 2011-06-13 | 2012-01-18 | 天津商业大学 | Vibration absorber with multiple natural frequencies |
| US20120049037A1 (en) * | 2010-08-25 | 2012-03-01 | Hon Hai Precision Industry Co., Ltd. | Connecting apparatus |
| CN102619821A (en) * | 2012-03-30 | 2012-08-01 | 苏州唐峰电器有限公司 | Pre-tightening device |
| CN202879180U (en) * | 2012-10-29 | 2013-04-17 | 李大海 | Double-leaf-spring front shock adsorption device of small-sized tractor |
| CN103629294A (en) * | 2013-12-05 | 2014-03-12 | 哈尔滨工程大学 | Simply supported beam type dynamic vibration absorber with adjustable frequency |
| CN203730471U (en) * | 2014-02-20 | 2014-07-23 | 内蒙古北方重工业集团有限公司 | Wedge block locking mechanism adjusted through bolt |
| CN104896002A (en) * | 2015-06-16 | 2015-09-09 | 广东工业大学 | Frequency-adjustable composite absorber |
-
2016
- 2016-01-25 CN CN201610053639.5A patent/CN105526293B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2289285A1 (en) * | 1997-04-17 | 1998-10-22 | Ohio Mattress Company Licensing And Components Group | Composite material spring modules with integrally formed attachment fittings |
| CN2375390Y (en) * | 1999-05-16 | 2000-04-26 | 张胜田 | Spring stiffness adjustable electromagnetic vibrator |
| CN2491641Y (en) * | 2001-07-17 | 2002-05-15 | 山西鸿基实业有限公司 | Connector for gearing and shaft of combing machine |
| CN201300680Y (en) * | 2008-11-28 | 2009-09-02 | 陕西同力重工有限公司 | Balanced suspension device |
| CN201694015U (en) * | 2010-02-04 | 2011-01-05 | 陕西同力重工股份有限公司 | Front suspension device of primary and secondary double-plate spring structure |
| US20120049037A1 (en) * | 2010-08-25 | 2012-03-01 | Hon Hai Precision Industry Co., Ltd. | Connecting apparatus |
| CN202117195U (en) * | 2011-06-13 | 2012-01-18 | 天津商业大学 | Vibration absorber with multiple natural frequencies |
| CN102619821A (en) * | 2012-03-30 | 2012-08-01 | 苏州唐峰电器有限公司 | Pre-tightening device |
| CN202879180U (en) * | 2012-10-29 | 2013-04-17 | 李大海 | Double-leaf-spring front shock adsorption device of small-sized tractor |
| CN103629294A (en) * | 2013-12-05 | 2014-03-12 | 哈尔滨工程大学 | Simply supported beam type dynamic vibration absorber with adjustable frequency |
| CN203730471U (en) * | 2014-02-20 | 2014-07-23 | 内蒙古北方重工业集团有限公司 | Wedge block locking mechanism adjusted through bolt |
| CN104896002A (en) * | 2015-06-16 | 2015-09-09 | 广东工业大学 | Frequency-adjustable composite absorber |
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| CN105526293B (en) | 2018-09-25 |
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Effective date of registration: 20210903 Address after: 528000 room 103a, building 1, No.28, East 1st block, Jiansha Road, Danzao Town, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: Foshan Huadao Chaojing Technology Co.,Ltd. Address before: 510090 Dongfeng East Road 729, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG University OF TECHNOLOGY |
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