CN201739404U - Steel plate spring and automobile thereof - Google Patents
Steel plate spring and automobile thereof Download PDFInfo
- Publication number
- CN201739404U CN201739404U CN2010202799707U CN201020279970U CN201739404U CN 201739404 U CN201739404 U CN 201739404U CN 2010202799707 U CN2010202799707 U CN 2010202799707U CN 201020279970 U CN201020279970 U CN 201020279970U CN 201739404 U CN201739404 U CN 201739404U
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- spring
- leaf spring
- steel plate
- flat segments
- automobile
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Abstract
The utility model discloses a steel plate spring and an automobile thereof, wherein the steel plate spring comprises a central bolt and a plurality of steel plates that are connected with one another by the central bolt in series; the middle parts of the steel plates are the straight segments; and the two sides of each of the straight segments are arc-shaped. The middle parts of the steel plates are designed into the straight segments, so that when the steel plate spring is assembled, a middle ride bolt can not need to overcome the pretightening force of the steel plate spring, thereby enhancing the tightness, avoiding the loosening of the middle ride bolt caused by the vibration, the swaying and the travelling of the automobile, avoiding the potential safety hazard and improving the safety of the automobile.
Description
Technical field
The utility model relates to the motor spring technology, relates in particular to a kind of leaf spring and automobile thereof.
Background technique
Leaf spring is had elasticity, generous unanimity and full arc shape steel disc different in size and is connected in series by centre bolt by a plurality of, and its effect is that vehicle frame and vehicle bridge are linked together with the form that hangs.
Leaf spring exposes between vehicle frame and vehicle bridge, bears the load impacting of wheel to vehicle frame, subdues the high vibration of vehicle body, the stationarity of maintenance vehicle driving and the adaptability to different road conditions.
Leaf spring is divided into front spring spring and rear spring according to the difference of position.
Wherein, rear spring is the leaf spring that is arranged between vehicle frame and the back axle, and the load impacting that it bore is bigger, and especially for the bigger vehicle of load-carryings such as engineering truck, landship, the load impacting that requires rear spring to bear is bigger.
In order to satisfy this demand, prior art increases the load impacting ability to bear of rear spring by the steel plate thickness in the thickening rear spring.
Thisly be: after the rear spring thickening by increasing the defective that steel plate thickness satisfies the load impacting demand, causing the empty wagons frequency increases, the automobile sky, fully loaded load difference is very big, car load is shaken, braking a series of faults such as shake, and, rigidity is big, free state is to little by the distortion of middle U-bolts clamped condition, the free state of theoretical calculation to middle U-bolts clamped condition camber change with actual stand experimental error greatly, about 10～15mm, middle U-bolts torsion is difficult to urgent, leaf spring is contacted fully with back bridge plate holder, active area is too small, and is not steady in the running process, is easy to generate and rocks, and after one section process of vehicle driving, U-bolts can produce loosening, especially under the situation of heavy duty, exists potential safety hazard.
The model utility content
The utility model provides a kind of leaf spring and automobile thereof, in order to solve the potential safety hazard that prior art light plate spring exists.
The utility model provides a kind of leaf spring, comprises centre bolt and a plurality of steel discs of being contacted by described centre bolt, and described a plurality of steel disc intermediate portions are flat segments, and the both sides of described flat segments are arc.
Aforesaid leaf spring, wherein, described leaf spring can be back main steel plate spring, and at this moment, the length of described flat segments equals the floor length of back auxiliary spring at least.
Described leaf spring can be the back auxiliary spring, and at this moment, the length of described flat segments equals the length of cover plate at least.
The two ends of described a plurality of steel discs are the short structure of rolling, and promptly the two ends of steel disc adopt that short rolling mode is rolling forms.
The camber of described leaf spring can equal the camber of full arc shape leaf spring under middle U-bolts clamped condition, to guarantee that leaf spring that the utility model provides can be directly and the car load environment facies coupling at existing full arc shape leaf spring place, as being complementary with the front spring spring.
The utility model provides a kind of automobile, comprise by cover plate, the fixing back main steel plate spring and back auxiliary spring of middle U-bolts, described back main steel plate spring is leaf spring provided by the utility model with the back auxiliary spring, described cover plate, back main steel plate spring and back auxiliary spring laminate successively, clamp by U-bolts in the middle of described.
Aforesaid automobile, wherein, U-bolts clamped in the distance in the middle of the flat segments of described back main steel plate spring and back auxiliary spring was positioned at.
The technological scheme that the utility model provides, intermediate portion by leaf spring is set to flat segments, when making the leaf spring assembling, middle U-bolts need not to overcome the pretightening force of leaf spring, increased tightness, avoided middle U-bolts because of vibrations, rock or that automobile running causes is loosening, avoided potential safety hazard, improved the Security of automobile.
Description of drawings
The structural representation of a kind of leaf spring that Fig. 1 provides for the utility model embodiment;
The structural representation of the another kind of leaf spring that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the schematic perspective view of Fig. 2;
Schematic representation after the leaf spring that Fig. 4 provides for the utility model embodiment compresses;
The automotive department separation structure schematic representation that Fig. 5 provides for the utility model embodiment.
Embodiment
For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
With Fig. 1～Fig. 5 is that example describes.
As shown in Figure 1, leaf spring comprises centre bolt 1, a plurality of steel disc 2 and locating clip 3.
A plurality of steel discs 2 are chained together by centre bolt 1, and fixing with locating clip about 3.
Each steel disc 2 comprises flat segments 21 and arcuate segment 22.
Certainly, also can increase the load impacting ability to bear of rear spring by the thickness of thickening back steel disc 2.
Wherein, flat segments 21 is the intermediate portion of steel disc 2, and promptly the intermediate portion steel disc of steel disc 2 is straight.
Because flat segments is straightened condition, camber is zero substantially, like this, flat segments is in the camber that camber under the clamped condition and leaf spring be under the free state at leaf spring and is consistent substantially, therefore, when being assembled to leaf spring on the automobile, middle U-bolts need not overcome existing full arc shape steel disc intermediate portion owing to the pretightening force that produces for arc, can play fixation preferably, simultaneously, also be easy to assembling, reduced assembling labor intensity.
The both sides of flat segments 21 are arcuate segment 22, and promptly flat segments 21 both sides of steel disc 2 all keep existing arc constant.
Uppermost steel disc two ends are provided with grasswort 4, are used for being connected with vehicle frame.
The two ends of all the other steel discs are the short structure of rolling, and adopt that short rolling mode is rolling forms, and can improve car load smoothness and load, can also reduce noise, can reduce complete vehicle weight again.
In the present embodiment, leaf spring can be rear spring.
When rear spring comprised back main steel plate spring with the back auxiliary spring, back main steel plate spring all can adopt the leaf spring structure that provides in the present embodiment with the back auxiliary spring.That is, the leaf spring that present embodiment provides promptly can be used as back main steel plate spring, also can be used as the back auxiliary spring.
The leaf spring that provides when present embodiment is during as back main steel plate spring, and the length of flat segments 21 is slightly larger than the floor length of back auxiliary spring.
The leaf spring that provides when present embodiment is during as the back auxiliary spring, and the length of flat segments 21 is slightly larger than cover plate length.
Have the leaf spring of grasswort for the steel disc above the base plate, also can adopt the structure that provides in the foregoing description.As Fig. 2, shown in Figure 3, steel disc one end above the leaf spring base plate has grasswort 5, is used for vibration damper is fixed on the vehicle frame.This steel disc intermediate portion that has above the steel disc of grasswort 5 is a flat segments 21, and both sides are arcuate segment.
As shown in Figure 4, leaf spring is under stressing conditions, and all steel discs are straightened condition.
The automobile that the utility model embodiment provides, U-bolts, cover plate and back main steel plate spring, back auxiliary spring in the middle of comprising.
As shown in Figure 5, the steel disc of back main steel plate spring 82 and back auxiliary spring 81 is fixed with the centre bolt that the centre is passed earlier, and cover plate 6, back auxiliary spring 81, auxiliary spring base plate 83, back main steel plate spring 82, back axle 92 are fixedly clamped by middle U-bolts 7 then.Grasswort 5 on the back main steel plate spring 82 is fixed on vibration damper 91 on the back axle 92.
The leaf spring that provides in the foregoing description all is provided for back main steel plate spring, back auxiliary spring.
Wherein, the length of the flat segments of the intermediate portion of steel disc is slightly larger than the length of back auxiliary spring base plate in the back main steel plate spring, and the length of the flat segments of the intermediate portion of steel disc is slightly larger than cover plate length in the back auxiliary spring.
In the present embodiment, back auxiliary spring, back main steel plate spring are compared with existing leaf spring, and middle U-bolts clamps in the distance, and the steel disc of back main steel plate spring, back auxiliary spring is a flat segments, this section steel disc does not have camber, and the tightness of U-bolts is better in the middle of making.Simultaneously the flat segments length of back auxiliary spring suitably and cover plate be complementary, the suitable base plate with the back auxiliary spring of the flat segments length of back main steel plate spring is complementary, be slightly larger than cover plate and auxiliary spring floor length, guaranteed to fit between cover plate and back auxiliary spring, back auxiliary spring and the back main steel plate spring.And short as-rolled condition is adopted at the two ends of back auxiliary spring, back main steel plate spring, has both improved car load smoothness and load, has reduced complete vehicle weight again.
Adopt flat segments in the middle of the rear spring, it is one section flat segments in the middle of back major-minor leaf spring is changed into by original full arc type, because its two ends still are arc, therefore, still there is camber in the back major-minor leaf spring that the utility model embodiment provides, this camber equates with the camber of existing full arc shape leaf spring after middle U-bolts compresses, to guarantee that the improved back major-minor leaf spring that the utility model embodiment provides and the car load environment facies at existing full arc shape leaf spring place mate, thereby make the back major-minor leaf spring after improving directly to replace existing full arc shape leaf spring, and need not again other structures of automobile to be adjusted.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (7)
1. a leaf spring is characterized in that, comprises centre bolt and a plurality of steel discs of being contacted by described centre bolt, and described a plurality of steel disc intermediate portions are flat segments, and the both sides of described flat segments are arc.
2. leaf spring according to claim 1 is characterized in that, described leaf spring is a back main steel plate spring, and the length of described flat segments equals the floor length of back auxiliary spring at least.
3. leaf spring according to claim 1 is characterized in that, described leaf spring is the back auxiliary spring, and the length of described flat segments equals the length of cover plate at least.
4. leaf spring according to claim 1 is characterized in that, the two ends of described a plurality of steel discs are the short structure of rolling.
5. according to each described leaf spring of claim 1-4, it is characterized in that the camber of described leaf spring equals the camber of full arc shape leaf spring under middle U-bolts clamped condition.
6. automobile, it is characterized in that, comprise by cover plate, the fixing back main steel plate spring and back auxiliary spring of middle U-bolts, described back main steel plate spring is each described leaf spring of aforesaid right requirement 1-5 with the back auxiliary spring, described cover plate, back main steel plate spring and back auxiliary spring laminate successively, clamp by U-bolts in the middle of described.
7. automobile according to claim 6 is characterized in that, U-bolts clamped in the distance in the middle of the flat segments of described back main steel plate spring and back auxiliary spring was positioned at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202799707U CN201739404U (en) | 2010-08-02 | 2010-08-02 | Steel plate spring and automobile thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202799707U CN201739404U (en) | 2010-08-02 | 2010-08-02 | Steel plate spring and automobile thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739404U true CN201739404U (en) | 2011-02-09 |
Family
ID=43554679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202799707U Expired - Fee Related CN201739404U (en) | 2010-08-02 | 2010-08-02 | Steel plate spring and automobile thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734364A (en) * | 2012-07-17 | 2012-10-17 | 山东理工大学 | Analytical design method of camber and surface shape of automobile plate spring |
| CN103470667A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Steel plate spring |
-
2010
- 2010-08-02 CN CN2010202799707U patent/CN201739404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734364A (en) * | 2012-07-17 | 2012-10-17 | 山东理工大学 | Analytical design method of camber and surface shape of automobile plate spring |
| CN103470667A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Steel plate spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110209 Termination date: 20170802 |