CN105692459B - Vibration-proof structure and crane - Google Patents
Vibration-proof structure and crane Download PDFInfo
- Publication number
- CN105692459B CN105692459B CN201610213731.3A CN201610213731A CN105692459B CN 105692459 B CN105692459 B CN 105692459B CN 201610213731 A CN201610213731 A CN 201610213731A CN 105692459 B CN105692459 B CN 105692459B
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- China
- Prior art keywords
- vibration
- damper
- proof structure
- hinged
- structure according
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of vibration-proof structure and cranes, are related to engineering machinery field, to realize the vibration damping to vehicle up direction where vibration-proof structure to disk and driver's cabin.The vibration-proof structure includes damper and is transferred to the vibration transmission member of component to be damped for the vibration by brake, and damper is mounted in vibration transmission member.Above-mentioned technical proposal designs the energy of shock absorber vibration to reduce the vibration of steering wheel and driver's cabin in the transmission path of vibration, according to installation space, selection mounting dampers on steering drag link, to achieve the purpose that vibration damping.
Description
Technical field
The present invention relates to engineering machinery fields, and in particular to a kind of vibration-proof structure and crane.
Background technique
Braking, which is shaken, to be referred to when vehicle driving is braked in certain vehicle speed range, the components such as steering wheel and driver's cabin
Acutely the phenomenon that shake, braking shake is vibration caused by brake torque variation.Cause the factor of brake torque variation very much, than
As processing and installation error, the brake-shoe of brake-shoe and brake drum material abrasion, the variation of brake air chamber pressure, carried
The variation etc. of lotus operating condition.
Current medium and small tonnage mobile crane in translation speed 40km/h to gently touch on the brake between 50km/h brake when, direction
Disk and driver's cabin shake acutely, seriously affect the safety of driver and the comfort of seating.
Inventors have found that at least there are following problems in the prior art: the processing scheme of braking jitter problem is most at present
Using replacement vehicle bridge, brake and steering linkage etc., the success rate that these schemes solve is low, and the later period also easily repeats to make
Dynamic jitter problem.These modes are at high cost, time-consuming and laborious, and the effect is unsatisfactory after changing.Because braking shake occurs
Disabled vehicle is all used for a period of time, due to the abrasion of component, loosens and falls off etc. and influence, causes to influence braking moment wave
Dynamic factor is more, only by replacement vehicle bridge or brake is different is surely fully solved brake torque variation problem；And due to
The abrasion and consumption of damping do not have auxiliary device in the transmission path of vibration to absorb the energy of vibration.By replacing vehicle bridge
Or brake, braking degree of jitter can be mitigated in a short time, but after a period of time, and can repeat to generate braking shake, this
The use in later period and the increase of maintenance cost are not only caused, but also seriously affects the ride comfort and safety of mobile crane in translation
Property.
Summary of the invention
One of purpose of the invention is to propose a kind of vibration-proof structure and crane, to realize to belonging to vibration-proof structure
The vibration damping of steering wheel for vehicle and driver's cabin.
To achieve the above object, the present invention provides following technical schemes:
The present invention provides a kind of vibration-proof structures, to be damped including damper and for the vibration of brake to be transferred to
The vibration transmission member of component, the damper are mounted in the vibration transmission member.
In an alternate embodiment of the invention, the vibration transmission member includes vehicle bridge and steering drag link, the component to be damped
Including steering wheel；One end of the damper and the vehicle bridge are hinged, the other end of the damper and the steering drag link
Hingedly.
In an alternate embodiment of the invention, the damper includes piston rod, piston and cylinder barrel；The piston is slidably installed in the cylinder
In cylinder；The first end of the piston rod is fixed as the first connecting pin, the second end of the piston rod with the piston；The cylinder
The one end of cylinder far from the piston rod is as second connection end；
One of them is hinged with the vehicle bridge for both first connecting pin and the second connection end, wherein another and institute
It is hinged to state steering drag link.
In an alternate embodiment of the invention, first connecting pin is fixed with the first mounting bracket, first mounting bracket with
The vehicle bridge is hinged, and the second connection end is fixed with the second mounting bracket, second mounting bracket and the steering vertical pulling
Bar is hinged.
In an alternate embodiment of the invention, the damper further includes protective case；The protective case is set in the piston rod
Outside, and one end of the protective case is fixed with first connecting pin, the other end is fixed with the cylinder barrel；Wherein, the guarantor
Sheath can stretch with the flexible of the piston rod.
In an alternate embodiment of the invention, the protective case is undulatory leather sheath.
In an alternate embodiment of the invention, one end of the damper and the lower section of the vehicle bridge are hinged, the damper it is another
One end and the lower section of the steering drag link are hinged.
In an alternate embodiment of the invention, the damped coefficient of the damper is determined according to following formula: F=C*V；
Wherein: F is the damping force of damper, and C is the damped coefficient of damper, and V is damper piston relative to cylinder barrel
Movement speed.
The present invention also provides a kind of cranes comprising vibration-proof structure provided by any technical solution of the present invention.
In an alternate embodiment of the invention, the crane is autocrane.
Based on the above-mentioned technical proposal, the embodiment of the present invention at least can produce following technical effect:
Above-mentioned technical proposal designs vibration damping in the transmission path of vibration to reduce the vibration of steering wheel and driver's cabin
Device absorbs the energy of vibration, according to installation space, selection mounting dampers on steering drag link, to achieve the purpose that vibration damping.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of damper on vibration-proof structure provided in an embodiment of the present invention；
Fig. 2 is the speed characteristic curve of damper on vibration-proof structure provided in an embodiment of the present invention；
Fig. 3 is the partial structural diagram of vibration-proof structure provided in an embodiment of the present invention.
Appended drawing reference:
1, damper；2, vehicle bridge；3, steering drag link；
11, piston rod；12, cylinder barrel；13, the first connecting pin；
14, second connection end；15, protective case；
17, the first mounting bracket；18, the second mounting bracket.
Specific embodiment
Technical solution provided by the invention is illustrated in more detail below with reference to FIG. 1 to FIG. 3.
The technical term for needing to use in the present embodiment or explanation of nouns.
Excited frequency: being frequency when instigating the vibratory output for being swashed object acquisition certain forms and size.
Vibration transfer path: vibration source hands on vibrational energy always along the component being attached thereto, from vibration source component
Start, all components vibrated by excitation just constitute vibration transfer path.The component vibrated by excitation also referred to as vibrates
Transferring element.
Damping shock absorber: or referred to as damper.It is by changing the pressure of damper internal flow to change its resistance
Buddhist nun provides damping force, is done work using damping force and absorbs energy progress vibration damping.
Referring to Fig. 1 and Fig. 3, the embodiment of the present invention provides a kind of vibration-proof structure, is preferably on medium and small tonnage crane
Vibration-proof structure.The vibration-proof structure includes that damper 1 and the vibration for the vibration of brake to be transferred to component to be damped pass
Component is passed, damper 1 is mounted in vibration transmission member.
In the present embodiment, component to be damped is mainly by taking steering wheel as an example.Vibration transmission member includes by the vibration of brake
It is transferred to the component of steering wheel, including each component in vibration transfer path between brake and component to be damped.Pass through
Analysis of experiments determines driving source to the vibration transfer path of steering wheel are as follows: brake → knuckle arm → steering drag link 3 → turn
To rocker arm → diverter → steering drive axle → steering wheel (component to be damped).
Above-mentioned technical proposal designs vibration damping in the transmission path of vibration to reduce the vibration of steering wheel and driver's cabin
Device 1 absorbs the energy of vibration, according to installation space, selection mounting dampers 1 on steering drag link 3, to reach the mesh of vibration damping
's.
Specifically, vibration transmission member includes vehicle bridge 2 and steering drag link 3, and component to be damped includes steering wheel.Damper
1 one end and vehicle bridge 2 are hinged, and the other end and steering drag link 3 of damper 1 are hinged.
By analysis of experiments determine driving source to steering wheel vibration transfer path are as follows: brake → knuckle arm → steering
3 → pitman arm of Drag link → diverter → steering drive axle → steering wheel.Damper 1 is installed according to the requirement of installation space
Between vehicle bridge 2 and steering drag link 3, it is not only able to achieve vibration damping in this way, but also do not influence the assembly of complete machine, installation and removal are also just
It is prompt.
It, can be by carrying out braking shake road driving test to disabled vehicle during designing 1 specific structure of damper
And the time-domain and frequency-domain of test data is analyzed, determine vibration transfer path, driving frequency and the critical component of braking shake
Vibration amplitude.
F=C*V (1)
In formula (1), F is the damping force of damper, and C is the damped coefficient of damper, and V is damper piston relative to cylinder
The movement speed of cylinder.According to the road driving test of braking shake, its width is adjusted centered on calculating determining damped coefficient
Value is tested, and according to the decaying of steering wheel and cab vibration amplitude, determines optimal damped coefficient.
Above-mentioned technology basic scheme is tested according to braking shake road driving determine steering wheel and cab vibration first
Excited frequency, vibration amplitude and vibration transfer path determine the installation site and fixation of damper 1 according to the transmission path of vibration
Rack form；The dampening range for determining damper 1 is designed according to driving frequency and vibration amplitude, is done work using damping force and is absorbed system
The energy generated during dynamic changes the vibration amplitude of steering wheel and driver's cabin, realizes and reduces steering wheel when vehicle braking and drive
The vibration for sailing room improves the safety of driving and the comfort of seating.
As the above analysis, the vibration-proof structure that above-mentioned technical proposal provides is designed from the transmission path of analysis vibration
Damper 1 absorbs vibrational energy and achievees the purpose that vibration damping by increasing damping force；By verification experimental verification, after mounting dampers 1
Carry out the road driving test of braking shake, the vibration acceleration value of steering wheel and driver's cabin within the control range of enterprise,
Vibration is obviously reduced.
Referring to Fig. 1, damper 1 can specifically use following structures: damper 1 includes piston rod 11, piston and cylinder barrel 12；
Piston is slidably installed in cylinder barrel 12；For the first end of piston rod 11 as the first connecting pin 13, the second end and piston of piston rod 11 are solid
It is fixed；The one end of cylinder barrel 12 far from piston rod 11 is as second connection end 14；Both first connecting pin 13 and second connection end 14 its
One of it is hinged with vehicle bridge 2, wherein another hinged with steering drag link 3.
The damper 1 that above-mentioned technical proposal provides, damper 1 utilize the damping hole on piston, valve seat upper valve when working
Hydraulic oil generates damping effect in the opening and closing master cylinder of door, is done work using damping force and absorbs vibrational energy, realizes and reduces
The effect of steering wheel and cab vibration., with a kind of simple and reliable, convenient for disassembly and assembly, low-cost scheme solves braking and trembles for it
Dynamic problem, and cost of implementation is low, effectiveness in vibration suppression is reliable.
Referring to Fig. 3, the first connecting pin 13 and the first mounting bracket 17 are fixed, and the first mounting bracket 17 and vehicle bridge 2 are hinged.The
Two connecting pins 14 and the second mounting bracket 18 are fixed, and the second mounting bracket 18 and steering drag link 3 are hinged.
First mounting bracket 17, the second mounting bracket 18 can be there are many structure types.Pass through the first mounting bracket 17, second
Mounting bracket 18 can be easily hinged by vibration-proof structure and vehicle bridge 2, steering drag link 3.
Further, at least one damping hole (not shown go out) is offered on piston.By change damping hole quantity and
Openings of sizes, thus it is possible to vary the damped coefficient of damper 1.
In practical application, the impulse stroke of damper 1 can be determined according to the extreme position of steering wheel left-right rotation；By turning to
The correlation of torque and steering resisting moment can substantially determine the damping force range of damper 1；It can according to braking joggling test
To measure the vibration velocity of steering drag link 3, the speed of 1 oil cylinder of damper is substantially determined, therefore according to the calculating of damping force
Formula (1) can determine the approximate range of 1 damped coefficient of damper.
Since the range of 3 front and back working limit position of steering drag link is not much different, 1 compression and tension row of damper
The damping characteristic of journey is designed to that unanimously speed characteristic curve is symmetrically, as shown in Figure 2.
Referring to Fig. 1, herein, damper 1 further includes protective case 15；Protective case 15 is set in the outside of piston rod 11, and protects
One end of sheath 15 and the first connecting pin 13 are fixed, and the other end and cylinder barrel 12 are fixed；Wherein, protective case 15 can be with piston rod 11
It is flexible and stretch.Protective case 15 can prevent external grieshoch from falling between piston rod 11 and cylinder barrel 12, to avoid to subtracting
The damped coefficient of vibration device 1 impacts.
Specifically, protective case 15 is undulatory leather sheath.Piston rod 11 stretches out, and protective case 15 is stretched；Otherwise it is compressed.
Under the limitation of the convenience and installation space installed in view of damper 1, one end of damper 1 and vehicle bridge 2
Side is hinged, and the lower section of the other end and steering drag link 3 of damper 1 is hinged.
The embodiment of the present invention also provides a kind of crane, including vibration-proof structure provided by any technical solution of the present invention.
The crane is specifically as follows autocrane, the autocrane of especially medium and small tonnage.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as in present invention protection
The limitation of appearance.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
But these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (13)
1. a kind of vibration-proof structure, which is characterized in that be damped including damper (1) and for the vibration of brake to be transferred to
The vibration transmission member of component, the damper (1) are mounted in the vibration transmission member；
The vibration transmission member includes vehicle bridge (2) and steering drag link (3), and the component to be damped includes steering wheel；It is described
Hingedly, the other end of the damper (1) and the steering drag link (3) are cut with scissors for one end and the vehicle bridge (2) of damper (1)
It connects.
2. vibration-proof structure according to claim 1, which is characterized in that the damper (1) includes piston rod (11), piston
With cylinder barrel (12)；The piston is slidably installed in the cylinder barrel (12)；The first end of the piston rod (11) is as the first connecting pin
(13), the second end of the piston rod (11) is fixed with the piston；The one of the cylinder barrel (12) separate the piston rod (11)
End is used as second connection end (14)；
Both described first connecting pin (13) and described second connection end (14) one of them with the vehicle bridge (2) hingedly, wherein
It is another hinged with the steering drag link (3).
3. vibration-proof structure according to claim 2, which is characterized in that first connecting pin (13) and the first mounting bracket
(17) fixed, hingedly, the second connection end (14) installs branch with second for first mounting bracket (17) and the vehicle bridge (2)
Frame (18) is fixed, and second mounting bracket (18) and the steering drag link (3) are hinged.
4. vibration-proof structure according to claim 2 or 3, which is characterized in that the damper (1) further includes protective case
(15)；The protective case (15) is set in the outside of the piston rod (11), and one end of the protective case (15) and described the
One connecting pin (13) is fixed, and the other end and the cylinder barrel (12) are fixed；Wherein, the protective case (15) can be with the piston rod
(11) flexible and stretch.
5. vibration-proof structure according to claim 4, which is characterized in that the protective case (15) is undulatory leather sheath.
6. vibration-proof structure according to claim 1 to 3, which is characterized in that one end of the damper (1) with it is described
The lower section of vehicle bridge (2) is hinged, and the lower section of the other end and the steering drag link (3) of the damper (1) is hinged.
7. vibration-proof structure according to claim 4, which is characterized in that one end and the vehicle bridge (2) of the damper (1)
Lower section it is hinged, the lower section of the other end and the steering drag link (3) of the damper (1) is hinged.
8. vibration-proof structure according to claim 5, which is characterized in that one end and the vehicle bridge (2) of the damper (1)
Lower section it is hinged, the lower section of the other end and the steering drag link (3) of the damper (1) is hinged.
9. vibration-proof structure according to claim 2 or 3, which is characterized in that the damped coefficient of the damper (1) is under
It states formula to determine: F=C*V；
Wherein: F is the damping force of damper, and C is the damped coefficient of damper, and V is movement of the damper piston relative to cylinder barrel
Speed.
10. vibration-proof structure according to claim 4, which is characterized in that the damped coefficient of the damper (1) is according to following
Formula determines: F=C*V；
Wherein: F is the damping force of damper, and C is the damped coefficient of damper, and V is movement of the damper piston relative to cylinder barrel
Speed.
11. vibration-proof structure according to claim 5, which is characterized in that the damped coefficient of the damper (1) is according to following
Formula determines: F=C*V；
Wherein: F is the damping force of damper, and C is the damped coefficient of damper, and V is movement of the damper piston relative to cylinder barrel
Speed.
12. a kind of crane, which is characterized in that including any vibration-proof structure of claim 1-11.
13. crane according to claim 12, which is characterized in that the crane is autocrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213731.3A CN105692459B (en) | 2016-04-07 | 2016-04-07 | Vibration-proof structure and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213731.3A CN105692459B (en) | 2016-04-07 | 2016-04-07 | Vibration-proof structure and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105692459A CN105692459A (en) | 2016-06-22 |
| CN105692459B true CN105692459B (en) | 2019-01-08 |
Family
ID=56219360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213731.3A Active CN105692459B (en) | 2016-04-07 | 2016-04-07 | Vibration-proof structure and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105692459B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204184442U (en) * | 2014-09-16 | 2015-03-04 | 鼎佳（天津）汽车电子有限公司 | Steering indicator |
| CN104500638A (en) * | 2014-12-10 | 2015-04-08 | 四川川南减震器集团有限公司 | Steering damper |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6340153B1 (en) * | 2000-11-02 | 2002-01-22 | General Dynamics Advanced Technology Systems, Inc. | Shock and acoustic mount |
| CN101514731B (en) * | 2009-03-25 | 2010-12-01 | 中国电力科学研究院 | Viscous fluid damper |
| CN101975238A (en) * | 2010-10-29 | 2011-02-16 | 重庆长安汽车股份有限公司 | Adjustable front shock absorber assembly |
| CN204041827U (en) * | 2014-08-07 | 2014-12-24 | 宁波鸿裕工业有限公司 | Vibration damper cylinder ends mounting structure |
| CN105059359B (en) * | 2015-08-13 | 2018-02-02 | 枞阳县金源汽车零部件有限公司 | A kind of special vibration absorber of vehicle steering based on parallel institution |
-
2016
- 2016-04-07 CN CN201610213731.3A patent/CN105692459B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204184442U (en) * | 2014-09-16 | 2015-03-04 | 鼎佳（天津）汽车电子有限公司 | Steering indicator |
| CN104500638A (en) * | 2014-12-10 | 2015-04-08 | 四川川南减震器集团有限公司 | Steering damper |
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| Publication number | Publication date |
|---|---|
| CN105692459A (en) | 2016-06-22 |
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Address after: 221000 No.68, Gaoxin Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: Xuzhou Heavy Machinery Co.,Ltd. Address before: 221004 No. 165 Copper Mountain Road, Jiangsu, Xuzhou Patentee before: Xuzhou Heavy Machinery Co.,Ltd. |
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