CN201257884Y - Mechanical type vehicle height automatic centering machine - Google Patents
Mechanical type vehicle height automatic centering machine Download PDFInfo
- Publication number
- CN201257884Y CN201257884Y CNU2008201251844U CN200820125184U CN201257884Y CN 201257884 Y CN201257884 Y CN 201257884Y CN U2008201251844 U CNU2008201251844 U CN U2008201251844U CN 200820125184 U CN200820125184 U CN 200820125184U CN 201257884 Y CN201257884 Y CN 201257884Y
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- link stopper
- vehicle
- suspension
- height
- connecting rod
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Abstract
An automatic mechanical vehicle height adjusting device can ensure that the height in static balance of a suspension bracket automatically achieves and maintains in the vicinity of the preset adjusting height by utilizing the motion of the suspension bracket caused by the uneven pavement according to different dead load in an entire mechanical way, and the adjusting height is altered without the change of the dead load. The vehicle height adjusting device mainly comprises a connecting rod, a swing stem, a rack shaft, a casing, an auxiliary spring, a bidirectional link stopper-type overrunning clutch, a bidirectional wedging block overrunning clutch and a gear, wherein, the bidirectional link stopper-type overrunning clutch, the bidirectional wedging block overrunning clutch and auxiliary coaxial lines of the gear and the rack shaft are mounted in the casing, the casing is fixed on the vehicle frame or on the vehicle body, an upper end of the connecting rod or an lower end of thereof are respectively hinged with one end of the swing stem and a vehicle bridge, the driving shaft of the bidirectional link stopper-type overrunning clutch is fixedly connected at the other end of the swing stem, and an upper end of the auxiliary spring or an lower end thereof are respectively hinged with the rack shaft and the vehicle bridge.
Description
Affiliated technical field
The present invention relates to a kind of self-checking device of vehicle suspension static balance height, especially keep automatically installing in the moderate accent of vehicle suspension height by full mechanical system according to different statics weight.
Background technology
Vehicle suspension is the elastic connecting element between vehicle frame (or vehicle body) and the vehicle bridge (or wheel), and device etc. is partly formed in mainly automatically being transferred by elastic element, shock absorber, guiding mechanism and overall height.Can be divided into independent suspension and dependent suspension by the guiding mechanism pattern, can be divided into metal spring suspension and air (or oil gas) spring suspension by the elastic element pattern, shock absorber is generally double-action type tubular hydraulic shock absorber, and the hydro pneumatic suspension that can use separately has the double action of spring and shock absorber concurrently.The basic training of vehicle suspension is with being: the vibration and the impact that 1. decay and cause by Uneven road, guarantee that automobile has good riding comfort, and make ride comfort and loading intact, and the vehicle body natural frequency is not changed with load; 2. transmit power and moment between vehicle frame (or vehicle body) and the vehicle bridge (or wheel), guarantee that automobile has good road-holding property, makes driving safety and stable performance; 3. reduce overall height and change, reduce body roll and trim, keep suitable body gesture with loading.
When the conventional truck of no overall height self-checking device is suspended in heavy duty or underloading, all can make suspension static balance highly deviated moderate height; If depart from when acquiring a certain degree, will cause bigger infringement to vehicle performance: 1. when running into bigger road bump, can the frequent impact suspension on/following bump rubber, reduce the riding comfort and the road-holding property of vehicle; 2. force tire working at the flank position, change normal tire location and kinematic parameter, cause that tire and road adherence reduce, tyre surface and wear-out of a bearing quickens, the increase of tire running resistance; 3. when vehicle heavy duty and when meeting bigger road bump, it is impaired that the too small ground Clearance may cause the chassis to be contacted to earth; 4. carry when inhomogeneous when vehicle, the body gesture change can make inclination (or trim) stability of vehicle reduce: the static range of passing light is reduced (or increase), jeopardize the driving safety of vehicle (or the other side sends a car and the pedestrian) under dark road conditions.
Therefore, adopt the overall height self-checking device can not only improve suspension property, prolong parts life-span, can also keep body gesture, have the function of static type automatic headlamp alignment device concurrently, make vehicle satisfy concerned countries (or area) automatically at the mandatory rules of law of car headlamp range and standard (to being unkitted the vehicle of device in the highly automated accent of suspension or automatic headlamp alignment device, inclination is relevant with the vehicle body pitch angle that influenced by carrying capacity under the relative ground-surface static state of its dipped beam optical axis).
Traditional overall height self-checking device is mainly realized by passive confession pump formula shock absorber, active air suspension and three kinds of modes of hydro pneumatic suspension.1. confess that pump formula shock absorber (such as the Nivomat system of ZF Sachs company exploitation) has the dual-use function of hydraulic shock absorber and assist spring concurrently, can utilize the up-and-down movement of vehicle suspension to come automatically regulating, make the suspension static balance highly remain near the moderate height with the suspension static balance height that static weight changes; Though this device has plurality of advantages: the vehicle body natural frequency does not change with load substantially, need not extraneous energy supply, compact conformation, be easy to repacking and non-maintaining; But its shortcoming is also more: hydraulic structure complexity, requirement on machining accuracy height, service life are short, maintenance cost is higher; In addition, owing to adopt monotubular to fill high pressure gas formula damper structure, higher though drag in response is very fast to the oil sealing requirement, and frictional damping and suspension rate are enlarged markedly, so be not suitable for heavy duty or low-rate suspension occasion; Thereby this device is only applied on luxury car (or SUV) at present.2. air (or oil gas) suspension employing levelling valve increases and decreases the air supply (or hydraulic pressure oil mass) in air (or oil gas) spring, to keep suitable suspension static balance height; The advantage of this suspension is: can realize that automatically regulating, the vehicle body natural frequency of any overall height and attitude do not change with loading and natural frequency is lower according to load and road conditions; Shortcoming is: need outside energy supply, accessory structure is more, bulking value is big, service life is short, install or repacking inconvenience and manufacturing and maintenance cost higher; So be mainly used in palace car, heavy wrecker truck and luxury car at present.
Summary of the invention
Technical problem to be solved in the utility model is: for remedying the not enough separately of the highly automated control apparatus of conventional truck suspension, the utility model provide a kind of mechanical type vehicle suspension height automatically transfer in device, can keep the suspension static balance highly to be in the default accent near the height automatically by full mechanical system according to different statics weight.
The technical scheme that its technical matters that solves the utility model adopts is: in automatically transferring device connect with axle spring (or automatically in the accent device connect in parallel with axle spring behind the assist spring) be installed on the spring/unsprung weight between, the suspension motion that utilizes Uneven road to cause, by device in the automatic accent back and forth, intermittently, kinematic mechanisms such as anti-reverse, the union end of device in driving axle spring (or assist spring) and transferring automatically, press the static weight size and make back and forth the not intermittent moment of constant amplitude, thereby the static balance distance in this union end of corresponding adjustment and automatic the accent between the device fixed end, and after suspension moves for several times up and down, the suspension static balance is highly reached and remain in the default accent near the height, do not change and do not change with static weight.In addition, be that the operation frequency make device in the accent reduces, work life prolongs, highly be symmetrical arranged one section idle travel in can transferring by suspension, only allow the suspension work amount of deflection that exceeds certain amplitude play in the accent and act on.
The beneficial effects of the utility model are: adopt full mechanical system to realize automatically during vehicle suspension height is transferred, improved the not enough separately of the highly automated control apparatus of conventional truck suspension, have simple in structure, repacking is convenient, need not extraneous energy supply, by changing its mounting structure form, applicable to existing most of automobile-used suspension (comprising heavy duty or low-rate suspension).
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the theory structure of suspension during the overall height of the utility model is transferred automatically.
Fig. 2 is the mounting structure of suspension during the mechanical type overall height of the utility model is transferred automatically.
Fig. 3 is A-A cutaway view of Fig. 2.
Fig. 4 is the mounting structure and the mode of operation of the active two-way link stopper formula overriding clutch of axle outside the utility model.
Fig. 5 is the mounting structure and the mode of operation of the active two-way link stopper formula overriding clutch of axle within the utility model.
The specific embodiment
Below with reference to accompanying drawing the utility model is further described.
1. in the embodiment shown in fig. 1, during the overall height of the utility model is automatically transferred the theory structure of suspension mainly by: axle spring (3), shock absorber (7), bump rubber (6), automatically transfer in formation such as device (2) assembly of etc.ing, its dependency structure mainly comprises: vehicle body (1), wheel (4), tire (5) etc., wherein: device series connection back and shock absorber are installed in parallel between vehicle body and wheel in axle spring and automatic the accent.
The principle of work of suspension is in the highly automated accent of mechanical type: the suspension motion that utilizes Uneven road to cause, by device in the automatic accent back and forth, intermittently and kinematic mechanism such as anti-reverse, drive the axle spring upper end and press the not intermittent reciprocating of the constant amplitude motion up and down of static weight size do, thereby the static balance distance between corresponding adjustment axle spring upper end and vehicle body (when static weight increases, the corresponding increase of static balance distance; Otherwise, corresponding the reducing of static balance distance then), and after suspension motion for several times up and down, the suspension equipoise is reached and remain in the default accent near the height, do not change and do not change with static weight.
Automatically the principal particulars of device is in transferring: the time during the shortening of the transmission specific energy of device was transferred during increase was transferred, but also can strengthen motional amplitude in the accent simultaneously, make departure increase in the accent.Be that the operation frequency make device in the accent reduces, work life prolongs, highly be symmetrical arranged one section idle travel in can transferring by suspension, only allow the suspension work amount of deflection that exceeds certain amplitude play in the accent and act on; But can increase the time in the accent like this, and slightly have departure in certain accent during exciting.Therefore, in accent, during the device structure design, answer its transmitting ratio of reasonable selection and idle travel.
2. in Fig. 2 and 3 illustrated embodiments, during the mechanical type overall height of the utility model is automatically transferred the mounting structure of suspension mainly by: axle spring (3), shock absorber (6), automatically transfer in assembly such as device constitute, its dependency structure mainly comprises: vehicle body (1), vehicle frame (2), wheel (4), vehicle bridge (5) etc., device is mainly by connecting rod (7), fork (8), tooth bar (9), housing (10), assist spring (11), two-way link stopper formula overriding clutch (12), two-way Wedge type over running clutch (13), gear component set-ups such as (14) in automatically transferring.Wherein: two-way link stopper formula overriding clutch, two-way Wedge type over running clutch, rack-and-pinion coaxial line are installed in the housing, housing is fixed on vehicle frame (or vehicle body) and goes up (in order to avoid increase unsprung weight, reduce suspension property), on the connecting rod/lower end is hinged with fork one end and vehicle bridge respectively, the imput shaft of the fork other end and two-way link stopper formula overriding clutch is affixed, on the assist spring/and the lower end connects with tooth bar and vehicle bridge respectively.
The principle of work of suspension was during the mechanical type overall height was automatically transferred: two-way link stopper formula overriding clutch has the intermittent output characteristic of rotating and (promptly rotates to be input as output is arranged when leaving in the accent locality, otherwise no-output then), height during the corresponding default suspension in position is transferred in the accent of its input travel; Two-way Wedge type over running clutch has unidirectional delivery rotational characteristic (being the driven shaft of the two-way link stopper formula of the thrust impassabitity rack-and-pinion reverse drive overriding clutch of assist spring).When the vehicle body static load lotus increases, during transferring, move on the position relative its in the equipoise of connecting rod; On the suspension that Uneven road causes/the following connecting rod fork pair that moves through, make the two-way not constant amplitude of two-way link stopper formula overriding clutch output rotate (this rotation width of cloth difference be that the vehicle body static load lotus causes relatively on move), and by two-way Wedge type over running clutch and pinion and rack, the upper end of assist spring is done/not constant amplitude motion down, assist spring is compressed gradually, produce thrust lifting vehicle body, thereby the equipoise of connecting rod constantly moved down, until get back to its transfer near the position; Characteristics of motion when static weight reduces is opposite when increasing.The suspension static balance is highly remained in the default accent near the height, do not change and do not change with static weight.In addition, for the vehicle body natural frequency after making in the accent does not become with static weight, assist spring can be designed to become stiffness characteristics; Connecting rod fork pair also can be rack-pinion, but for reaching the deceleration purpose, tooth radius may be bigger, the volume and weight of device in being unfavorable for reducing to transfer.
3. in the Figure 4 and 5 illustrated embodiment, the two-way link stopper formula overriding clutch of the utility model can be divided into outer shaft active (Fig. 4) and interior axle active (Fig. 5) two kinds by imput shaft position difference; Its mounting structure mainly by two unidirectional link stopper formula overriding clutchs by just/the coaxial installation of reverse side (a1～3/b1～3) pairing forms; Its mode of operation can be divided into: position (a2 and b2) and clickwise state (a3 and b3) in left-hand revolution state (a1 and b1), the default accent, and the position is corresponding to position in the default suspension accent in the default accent; Wherein, unidirectional link stopper formula overriding clutch mainly is made of: driven shaft (1), imput shaft (2), compression spring push rod (3), roller (4), torsion spring link stopper assemblies such as (5).The characteristics of this mechanism are: load-carrying capacity is strong, impulsive noise is little, frictional damping is low, operate steadily, simple in structure, with low cost and easy to maintenance.
The principle of work that the active unidirectional link stopper formula overriding clutch of outer shaft is positive when installing is: when the imput shaft conter clockwise leaves in the accent rotated position, imput shaft compresses driven shaft by roller, rotate together thereby drive driven shaft, the torsion spring link stopper is subjected to spacing constraint (only allowing to overcome torsion spring clockwise rotates) still to rest on original position; When imput shaft when the position cw returns in transferring, roller overcomes the compression spring push rod and is in loosening state, and driven shaft is broken away from imput shaft and static; When imput shaft crosses that the position continues to clockwise rotate in the accent, promote link stopper by roller and overcome torsion spring and rotate together; When imput shaft when the position conter clockwise returns in transferring, because the repulsion of torsion spring link stopper, roller still can overcome the compression spring push rod and be in loosening state, thereby makes driven shaft still keep quiescence; During the position, link stopper is subjected to spacing constraint to rest on reference position in imput shaft arrive to be transferred, and roller spring spindle by compression promotes to compress again master/slave moving axis.Move in circles by this characteristics of motion, unidirectional link stopper formula overriding clutch is positive when installing only drives driven shaft when the imput shaft conter clockwise leaves in the accent rotated position; Only when leaving in the accent rotated position, the imput shaft cw drives driven shaft when in like manner, reverse side is installed; Therefore, with two unidirectional link stopper formula overriding clutchs by just/during coaxial installations of reverse side pairing, just can realize intermittence rotation output characteristic (i.e. rotation is input as when leaving in the accent locality output, otherwise then no-output).
It is active that the principle of work of the active two-way link stopper formula overriding clutch of interior axle is similar to outer shaft, and different is: interior axle is for active is imported, outer shaft is driven output.Because the active jogger hole of outer shaft can only be processed into through hole from lateral surface, the interior axle of manufacturing cost is active to rise to some extent, but the structural arrangement of device obtains simplifying in the accent because imput shaft in the outer ring, makes, and has reduced the overall cost of device in transferring on the contrary.Therefore, the utility model adopts the active two-way link stopper formula overriding clutch of outer shaft.
Claims (3)
1. device during a mechanical type overall height is transferred automatically, it is characterized in that: mainly by connecting rod, fork, tooth bar, housing, assist spring, two-way link stopper formula overriding clutch, two-way Wedge type over running clutch, gear constitutes, wherein: two-way link stopper formula overriding clutch, two-way Wedge type over running clutch, the rack-and-pinion coaxial line is installed in the housing, housing is fixed on vehicle frame or the vehicle body, on the connecting rod/lower end is hinged with fork one end and vehicle bridge respectively, the imput shaft of the fork other end and two-way link stopper formula overriding clutch is affixed, on the assist spring/and the lower end connects with tooth bar and vehicle bridge respectively.
2. device during mechanical type overall height according to claim 1 is transferred automatically is characterized in that: highly be symmetrical arranged one section idle travel in can transferring by suspension; Assist spring can be designed to become stiffness characteristics; Connecting rod fork pair also can be rack-pinion.
3. device during mechanical type overall height according to claim 1 is transferred automatically is characterized in that: two-way link stopper formula overriding clutch can be divided into active two kinds of the active and interior axle of outer shaft by imput shaft position difference; Its mounting structure mainly by two unidirectional link stopper formula overriding clutchs by just/reverse side matches coaxial installation and forms; Position during transferred corresponding to default suspension the position during it was transferred; Wherein, unidirectional link stopper formula overriding clutch mainly is made of driven shaft, imput shaft, compression spring push rod, roller, torsion spring link stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201251844U CN201257884Y (en) | 2008-03-11 | 2008-07-04 | Mechanical type vehicle height automatic centering machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820056083 | 2008-03-11 | ||
| CN200820056083.6 | 2008-03-11 | ||
| CNU2008201251844U CN201257884Y (en) | 2008-03-11 | 2008-07-04 | Mechanical type vehicle height automatic centering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257884Y true CN201257884Y (en) | 2009-06-17 |
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ID=40772115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201251844U Expired - Fee Related CN201257884Y (en) | 2008-03-11 | 2008-07-04 | Mechanical type vehicle height automatic centering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257884Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303091A (en) * | 2013-06-25 | 2013-09-18 | 中联重科股份有限公司 | Drive axle balancing device and engineering machine |
| CN110242112A (en) * | 2019-06-25 | 2019-09-17 | 珠海格力电器股份有限公司 | A kind of door lock and door |
| CN111016564A (en) * | 2018-10-09 | 2020-04-17 | 上海汽车集团股份有限公司 | Height-adjustable shock absorber, suspension system and vehicle body height control method |
-
2008
- 2008-07-04 CN CNU2008201251844U patent/CN201257884Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103303091A (en) * | 2013-06-25 | 2013-09-18 | 中联重科股份有限公司 | Drive axle balancing device and engineering machine |
| CN103303091B (en) * | 2013-06-25 | 2015-11-25 | 中联重科股份有限公司 | Drive axle balancing device and construction machinery and equipment |
| CN111016564A (en) * | 2018-10-09 | 2020-04-17 | 上海汽车集团股份有限公司 | Height-adjustable shock absorber, suspension system and vehicle body height control method |
| CN111016564B (en) * | 2018-10-09 | 2023-09-26 | 上海汽车集团股份有限公司 | Height-adjustable shock absorber, suspension system and vehicle height control method |
| CN110242112A (en) * | 2019-06-25 | 2019-09-17 | 珠海格力电器股份有限公司 | A kind of door lock and door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CAO MIN Effective date: 20130130 Owner name: LI XUEGANG Free format text: FORMER OWNER: CAO MIN Effective date: 20130130 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200127 PUDONG NEW AREA, SHANGHAI TO: 200032 XUHUI, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130130 Address after: 200032 Shanghai Xuhui District Xietu Road No. 1223 room 2103 Patentee after: Li Xuegang Patentee after: Cao Min Address before: 200127 Shanghai city Pudong New Area Lancun road 31 Lane No. 11 room 1602 Patentee before: Cao Min |
|
| DD01 | Delivery of document by public notice |
Addressee: Li Xuegang Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20140704 |
|
| EXPY | Termination of patent right or utility model |