CN1647991A - Shock-proof car frame - Google Patents
Shock-proof car frame Download PDFInfo
- Publication number
- CN1647991A CN1647991A CN 200410098666 CN200410098666A CN1647991A CN 1647991 A CN1647991 A CN 1647991A CN 200410098666 CN200410098666 CN 200410098666 CN 200410098666 A CN200410098666 A CN 200410098666A CN 1647991 A CN1647991 A CN 1647991A
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- Prior art keywords
- vehicle frame
- shock
- frame
- proof car
- car frame
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The shockproof motorcycle frame includes quadrangled front frame, linear back frame and elastic part. One side of the front frame has one end connected movably with one end of the back frame, and the other end connected to the middle part of the back frame via the elastic part. The middle part of the front frame is hinged via hinge axle to the other end of the back frame. The elastic part is inflated hydraulic damper or polyurethane rubber part. Therefore, the present invention has the advantage of decreasing the vibration of motorcycle without increasing the weight and volume of the motorcycle frame.
Description
Technical field
The present invention relates to a kind of shock-proof car frame, relate in particular to a kind of motor bike shock-proof car frame that utilizes single rear shock absorber.
Background technology
Motor bike produce when driving vibration be one quite generally and very serious problem, the vibration source of motorcycle vibration mainly contains driving engine excitation and road excitation two classes.The driving engine excitation comprises cylinder-firing pressure, reciprocal inertia force and centrifugal inertia force.Cylinder-firing pressure mainly causes the vibratory response of parts such as cylinder body, and propagates to vehicle frame, so be one of reason that causes frame weaving.If the natural frequency of vehicle frame then may cause the generation of resonance effect in the scope of the rotational frequency of driving engine.In the driving engine reciprocal inertia force, the single order reciprocal inertia force plays a leading role, and it causes that whole motor bike is the vibration of fundamental frequency with the rotating speed.When motor bike travelled on uneven road surface, if wheel knocks stone, motor bike landed after may jumping up, though the vibration meeting of tire then is delivered on the vehicle frame through vibration damping, the vibration damping Frequency Response of shock absorber and the Frequency Response of vehicle frame are difficult to mate fully.This requires will consider the dynamic characteristics of frame of motorcycle and shock absorber design jointly when motor bike designs.
From the angle of vibrational energy, the size of vibration amplitude has embodied the size of energy, vibration spoke value evenly then embodied exergonic homogeneity.Vibration spoke value is even more then, and it is also minimum to the inside and outside destructiveness of system.From human body feeling to vibration, vibration amplitude, frequency, direction of vibration etc. are the principal elements of human body subjective assessment vibration, low (the most responsive frequency of human body is 4～8HZ) because human body is to the sensivity of high frequency, be difficult to feel that the interior spoke value difference of high-frequency vibration is different, so the homogeneity of high-frequency vibration spoke value is one of key factor that influences traveling comfort.
The method that solves motorcycle vibration at present and generally adopt is exactly to increase the anti-shake performance that rigidity of frame strengthens vehicle frame, but increased the weight and volume of vehicle frame, because the weight and volume of motor bike itself is less relatively, therefore gain in weight and volume can bring a lot of problems.
Summary of the invention
The objective of the invention is under the situation of the weight and volume that does not increase motorbike frame, weaken the vibration that produces when motor bike is driven significantly.
For achieving the above object, the invention provides a kind of shock-proof car frame, comprise a tetragonal front vehicle frame, linear back vehicle frame and elastomeric element, one end on one side of described front vehicle frame flexibly connects with an end of back vehicle frame, and the other end on one side of described front vehicle frame utilizes described elastomeric element to be connected with vehicle frame middle part, back.
Described back vehicle frame is linear or broken line shape.One end of described back vehicle frame and the middle part of front vehicle frame are hinged by rotating shaft.Described elastomeric element is inflation hydra-shock absorber or polyamine fat rubber bodies.
Therefore, the present invention has under the situation of the weight and volume that does not increase motorbike frame, weakens significantly to produce the advantage of ground vibration when motor bike is driven.
Description of drawings
Fig. 1 is the structural representation of shock-proof car frame front vehicle frame of the present invention.
Fig. 2 is the structural representation of vehicle frame behind the shock-proof car frame of the present invention.
Fig. 3 is the structural representation of shock-proof car frame inflation hydra-shock absorber of the present invention.
Fig. 4 is the structural representation of shock-proof car frame of the present invention.
Fig. 5 installs structural representation behind the driving engine for shock-proof car frame of the present invention.
Fig. 6 installs the force analysis figure that is subjected to the engine piston vibrations when travelling for shock-proof car frame of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 1, structural representation for front vehicle frame of the present invention, front vehicle frame 1 is a rhombus, is that the intersection point place on " rhombus " both sides is that an end points place on one side is first point of connection 11 at the middle part of front vehicle frame 1, and front vehicle frame 1 bottom i.e. another end points place on one side is second point of connection 12.As shown in Figure 2, be the structural representation of vehicle frame behind the present invention, back vehicle frame 2 is broken line shape (also can be linear), and the point of connection of front end is the 3rd point of connection 23, and the point of connection at middle part is the 4th point of connection 24.
As shown in Figure 3, be the structural representation of inflation hydra-shock absorber of the present invention.When connecting rod 30 pressurizeds of inflation hydra-shock absorber 3 glided, fluid 32 that valve seat 31 interfaces are following and high pressure nitrogen 33 be pressurized simultaneously.Oil under pressure 32 is washed valve block 37 open by the folding hole 34 on the valve seat 31 and is entered epicoele.High pressure nitrogen 33 shrinks because of the characteristic that becomes the rigidity variable volume is arranged.When restoring stroke, valve block 37 has covered the folding hole 34 on the valve seat 31, refluxes in 32 normal open holes 39 on piston 38 of fluid, and dumping force increases greatly.And high pressure nitrogen 33 produces reverse dumping force because of fluid 32 pressure under valve seat 31 interfaces reduce to increase volume.The point of connection on inflation hydra-shock absorber 3 tops is the 5th point of connection 35, and the point of connection of bottom is the 6th point of connection 36.
As shown in Figure 4, be the structural representation of shock-proof car frame of the present invention.In conjunction with Fig. 1 and 2, first point of connection 11 of front vehicle frame 1 is hinged with the 3rd point of connection 23 of back vehicle frame 2 by rotating shaft 4, second point of connection 12 of front vehicle frame 1 is connected with the 6th point of connection 36 of inflation hydra-shock absorber 3, the 4th point of connection 24 of back vehicle frame 2 is connected with the 5th point of connection 35 of inflation hydra-shock absorber 3, forms shock-proof car frame of the present invention.The inflation hydra-shock absorber can be replaced by polyamine fat rubber bodies elastomeric material.Structural representation behind the shock-proof car frame installation driving engine 5 of the present invention as shown in Figure 5.
The force analysis that shock-proof car frame of the present invention is subjected to engine piston vibrations when travelling as shown in Figure 6.
In motion, the power that produces during driving engine 5 piston upward movements is F
F1, the power that produces when driving engine 5 pistons move downward is F
F2The power that produces during inflation hydra-shock absorber 3 compression upward movements is F
J1, the power that produces during inflation hydra-shock absorber 3 extensional motions is F
J2Power F
F1Passive generation power F during generation
J2Power F
F1Horizontal component of force F
F1xWith power F
J1Horizontal component of force F
J1xDirection is identical, is superimposed and strengthens being power F
X1And power F
F1Vertical component F
F1yWith power F
J1Vertical component F
J1yDirection is opposite, is superimposed and weakens to be power F
Y1Power F
F2Passive generation power F during generation
J1, power F
F2Horizontal component of force F
F2xWith power F
J1Horizontal component of force F
J1xDirection is identical, is superimposed and strengthens being power F
X2And power F
F1Vertical component F
F1yWith power F
J2Vertical component F
J2yDirection is opposite, is superimposed and weakens to be power F
Y2
The vibrations that the driving engine crank motion produces when therefore, travelling can obviously be weakened.In like manner, motor bike passes to vehicle frame and driving engine because of the vibrations of jolting that Uneven road causes by the inflation hydra-shock absorber, because of it is rigid body,, the vibrations that jolt vibrations and engine piston crank motion that motor bike causes because of Uneven road produce also can obviously be weakened so in like manner can drawing the vibrations that the road surface produces by above-mentioned analysis.
Therefore, the present invention utilizes inflation hydra-shock absorber or other shock-damping structure technology to cooperate split type vehicle frame technology, be designed to a kind of vehicle frame that carries shock-damping structure, can obviously weaken two kinds of main factor: a that cause vibrations, the vibrations (launched machine mounting support is delivered to front vehicle frame) that the engine piston crank motion produces; B, jolt (being delivered to front vehicle frame) that cause because of Uneven road by the center rear shock absorber.These two classes vibrations are because in front vehicle frame, had only few part to be delivered to rider's buttocks and arm by " circle limit ".Greatly reduce the frequency and the amplitude of vehicle frame afterbody vertical tremor, improve the anti-shake performance of vehicle frame, make the rider obviously weaken impression vibrations.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1, a kind of shock-proof car frame, it is characterized in that: comprise a tetragonal front vehicle frame, linear back vehicle frame and elastomeric element, one end on one side of described front vehicle frame flexibly connects with an end of back vehicle frame, and the other end on one side of described front vehicle frame utilizes described elastomeric element to be connected with vehicle frame middle part, back.
2, shock-proof car frame according to claim 1 is characterized in that: described back vehicle frame is linear or broken line shape.
3, shock-proof car frame according to claim 1 and 2 is characterized in that: an end of described back vehicle frame and the middle part of front vehicle frame are hinged by rotating shaft.
4, shock-proof car frame according to claim 1 is characterized in that: described elastomeric element is inflation hydra-shock absorber or polyamine fat rubber bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100986661A CN100387480C (en) | 2004-12-10 | 2004-12-10 | Shock-proof car frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100986661A CN100387480C (en) | 2004-12-10 | 2004-12-10 | Shock-proof car frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1647991A true CN1647991A (en) | 2005-08-03 |
| CN100387480C CN100387480C (en) | 2008-05-14 |
Family
ID=34869519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100986661A Expired - Fee Related CN100387480C (en) | 2004-12-10 | 2004-12-10 | Shock-proof car frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387480C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556254A (en) * | 2012-02-29 | 2012-07-11 | 胡达广 | Rear shock damping system of separate motorcycle |
| CN105460134A (en) * | 2015-12-28 | 2016-04-06 | 勾长虹 | Frame for electric vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022484A (en) * | 1976-03-15 | 1977-05-10 | Davis William F | Motorcycle frame and suspension and methods of making and using the same |
| US4660854A (en) * | 1984-12-18 | 1987-04-28 | Yamaha Hatsudoki Kabushiki Kaisha | Frame construction for motorcycles |
| JPH0995279A (en) * | 1995-09-29 | 1997-04-08 | Honda Motor Co Ltd | Car body frame for motorcycle |
| JP2003112683A (en) * | 2001-10-03 | 2003-04-15 | Honda Motor Co Ltd | Shock absorber for motorcycle |
| CN2640895Y (en) * | 2003-08-19 | 2004-09-15 | 重庆宗申技术开发研究有限公司 | Frame of motorcycle |
| CN2661554Y (en) * | 2003-11-11 | 2004-12-08 | 重庆宗申技术开发研究有限公司 | Motorcycle frame |
| CN2767292Y (en) * | 2004-12-10 | 2006-03-29 | 重庆宗申技术开发研究有限公司 | Shock proof carriage |
-
2004
- 2004-12-10 CN CNB2004100986661A patent/CN100387480C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556254A (en) * | 2012-02-29 | 2012-07-11 | 胡达广 | Rear shock damping system of separate motorcycle |
| CN105460134A (en) * | 2015-12-28 | 2016-04-06 | 勾长虹 | Frame for electric vehicle |
| CN105460134B (en) * | 2015-12-28 | 2019-03-22 | 勾长虹 | Vehicle frame for electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100387480C (en) | 2008-05-14 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20161210 |