CN203532600U - Special-shaped plate spring - Google Patents
Special-shaped plate spring Download PDFInfo
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- CN203532600U CN203532600U CN201320685633.1U CN201320685633U CN203532600U CN 203532600 U CN203532600 U CN 203532600U CN 201320685633 U CN201320685633 U CN 201320685633U CN 203532600 U CN203532600 U CN 203532600U
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- spring
- sheet
- spring sheet
- special
- plate spring
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Abstract
The utility model discloses a special-shaped plate spring, which comprises spring pieces sequentially overlapped from the top down, wherein the middle part of the spring piece is bent downwards to form a concave section with a flat bottom, two ends of the spring piece are straight sections with same thickness, the straight section is thinner than the concave section, and the straight sections are connected with the concave section through transition sections with gradually increased thickness. The special-shaped plate spring has the advantages that, a steel plate spring with composite stiffness applied to a heavy-duty car is provided, the carrying capacity of the car is increased due to reasonable load distribution of each component of the steel plate spring; the steel plate spring has compact structure, light weight, low cost, good maintainability, is convenient to mount, and meets the requirement on lightweight design of modern cars; the motion coordination of a suspension system and a steering system can be obviously improved through the reasonable design of plate spring stiffness and optimized distribution of the steering .
Description
Technical field
The utility model relates to a kind of heavy-duty car production technical field, relates in particular to a kind of special-shaped leaf spring.
Background technique
The elastic element of at present two front axle heavy truck one axle suspensions and two axle suspensions all adopts leaf spring, leaf spring is stacked and be fixed together by spring clip and U bolt successively from top to bottom by some spring sheets, and it along its length roughly linearly or be one-sided hyperbolic shape.Adopt the rigidity of the suspension of few sheet spring or multiple-leaf spring all to immobilize, owing to cannot realizing change rigidity, along with load constantly increases, leaf spring there will be " antiarch " phenomenon, under bad working environments, there will be the fracture of leaf spring main leaf, and because limiting stopper is caused the too early damage of limiting stopper by frequent shock, lose position-limiting action, and then can cause engine sump tank be subjected to front axle shock and damage, cause the serious consequences such as leakage of oil.
Model utility content
The advantages such as the purpose of this utility model is exactly in order to address the above problem, and a kind of special-shaped leaf spring is provided, and it has compact structure, lightweight, and cost is low, and maintainalbility is good and easy for installation.
To achieve these goals, the utility model adopts following technological scheme:
A kind of special-shaped leaf spring, comprise from top to bottom stacked successively spring sheet, spring sheet middle part is bent downwardly and forms flat recessed section, the flat segments that the two ends of spring sheet are uniform thickness, the thickness of flat segments is less than the thickness of recessed section, and flat segments is connected with the changeover portion that recessed section increases gradually by thickness.
Described spring sheet, by upper spring sheet and lower spring sheet, formed, the free end of upper spring sheet flat segments curls into respectively grasswort, and the free end of lower spring sheet flat segments curls into respectively front bag ear and the rear bag ear that surrounds grasswort, and the arc length of front bag ear is greater than the arc length of rear bag ear.
Described spring sheet, is provided with air bag in recessed section of spring sheet.
Described spring sheet, the end between adjacent two flat spring sheets is provided with end anti-attrition sheet, and middle part is provided with middle part anti-attrition sheet.
The female section, its middle part connects by centre bolt.
Abnormity leaf spring adopts tapered spring sheet rational in infrastructure, has effectively reduced the weight of leaf spring, has reduced vehicle fuel consume, has saved cost of transportation.
The middle part of spring sheet is bent downwardly and forms flat recessed section, air bag lower end is positioned at this recessed section, formed the leaf spring that has complex stiffness of spring sheet and air bag stack, by adjusting the camber of spring sheet, carload is carried out to reasonable distribution, and then the rigidity proportioning of adjusting spring sheet and carrying air bag, while realizing automobile zero load, spring sheet plays a major role, and full load spring sheet and air bag concur.
The beneficial effects of the utility model: a kind of leaf spring for heavy-duty car that has complex stiffness is provided, by each components ' load of leaf spring, reasonably distribute, the bearing capacity of automobile increases, the compact structure of leaf spring, lightweight, cost is low, and maintainalbility is good, and easy for installation, meet the requirement of Hyundai Motor light-weight design.
Accompanying drawing explanation
Fig. 1 is the structural representation of special-shaped leaf spring of the present utility model.
Wherein, 1. grasswort, 2. front bag ear, 3. end anti-attrition sheet, 4. flat segments, 5. changeover portion, 6. lower spring sheet, 7. recessed section, 8. upper spring sheet, 9. centre bolt, 10. middle part anti-attrition sheet, 11. rear bag ears.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Special-shaped leaf spring as shown in Figure 1, comprises stacked from top to bottom spring sheet, and the quantity of spring sheet is selected according to the material of load capacity and spring sheet, can, for a plurality of, also can be 1; Near end between adjacent two flat spring sheets and middle part arranges end anti-attrition sheet 3 and middle part anti-attrition sheet 10, reduces the wearing and tearing between adjacent springs sheet; The middle part of spring sheet is bent downwardly and forms flat recessed section 7, and the shape of this recessed section 7 is roughly the shape of cross section of basin; The two ends of spring sheet are the flat segments 4 of uniform thickness, and the thickness of flat segments 4 is less than the thickness of recessed section 7, and flat segments 4 is connected with recessed section 7 changeover portions that increase gradually by thickness 5.The spring sheet of this leaf spring has adopted variable cross section design, compares with traditional Multi-Leaf Springs, can obviously reduce weight.Recessed section 7 of spring sheet is structures of uniform thickness, and recessed section 7 is connected with the joint employing arc transition of changeover portion 5, effectively reduces concentrated stress, and significantly improved the working life of leaf spring.
As further improvement of the utility model, described leaf spring is adopted by being high-strength spring steel 50CrVA by material, be of a size of 20mm thick * 90mm is wide, rigidity is 220N/mm
22 spring sheets form.2 spring sheets are followed successively by upper spring sheet 8 and lower spring sheet 6 from top to bottom.The leaf spring that adopts the spring sheet formation of negligible amounts, makes the simple in structure and lightweight of leaf spring, low cost of manufacture, and the fuel consumption reduction in transportation, has saved cost of transportation.Near the end that is positioned at leaf spring between upper spring sheet 8 and lower spring sheet 6 and middle part arranges end anti-attrition sheet 3 and middle part anti-attrition sheet 10, reduces wearing and tearing, improves the working life of leaf spring; The free end of upper spring sheet 8 flat segments 4 curls into respectively grasswort 1, and the grasswort 1 of leaf spring is hinged by spring pin and flat spring bracket, and grasswort 1 is interference fit with spring pin; The free end of lower spring sheet 6 flat segments 4 curls into respectively encirclement; The front bag ear 2 of grasswort 1 and rear bag ear 11, wrap ear 11 arc length long after the arc length of front bag ear 2; The major part that front bag ear 2 surrounds grasswort 1, this structure is wrapped the larger needs of ear 2 instantaneous impacts before more adapting to when automobile brake; For the fixing relative position of upper spring sheet 8 and lower spring sheet 6, recessed section of 7 middle parts of upper spring sheet 8 and lower spring sheet 6 are fixing by centre bolt 9; Front grasswort 1 centre bolt 9 relative to rear grasswort 1 is non-symmetry structure, and front grasswort 1 and centre bolt 9 distances are greater than the distance of rear grasswort 1 and centre bolt 9.
As of the present utility model, further improve again, on the spring sheet of leaf spring, air bag is set, and its lower end is positioned at recessed section 7 of spring sheet, air bag seat is fixed with two axles together with centre bolt 9 with spring sheet.After installation, air bag can not exist and interfere with spring sheet, and air bag rigidity and spring plate rigidity stack, have stack rigidity, can effectively improve whole bearing capability.The leaf spring of this structure is compared with conventional steel plates spring, because the middle part of its spring sheet has a recessed section 7, air bag can be arranged wherein, make compact structure, saves installing space, effectively reduces arrangement height.This leaf spring has complex stiffness, by adjusting the camber of spring sheet, carload is carried out to reasonable distribution, and then the rigidity proportioning of adjusting spring sheet and carrying air bag, while realizing automobile zero load, the spring sheet of leaf spring plays a major role, and spring sheet and the air bag of full load leaf spring concur.This structural steel and iron spring weight is light, saves fuel oil in transportation process, and especially, concerning automotive industry and motor transport service, cost falls in fuel-economizing becomes key.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. a special-shaped leaf spring, it is characterized in that, comprise from top to bottom stacked successively spring sheet, spring sheet middle part is bent downwardly and forms flat recessed section, the two ends of spring sheet are the flat segments of uniform thickness, the thickness of flat segments is less than the thickness of recessed section, and flat segments is connected with the changeover portion that recessed section increases gradually by thickness.
2. a kind of special-shaped leaf spring as claimed in claim 1, it is characterized in that, described spring sheet, by upper spring sheet and lower spring sheet, formed, the free end of upper spring sheet flat segments curls into respectively grasswort, the free end of lower spring sheet flat segments curls into respectively front bag ear and the rear bag ear that surrounds grasswort, and the arc length of front bag ear is greater than the arc length of rear bag ear.
3. a kind of special-shaped leaf spring as claimed in claim 1, is characterized in that, described spring sheet is provided with air bag in recessed section of spring sheet.
4. a kind of special-shaped leaf spring as claimed in claim 1, is characterized in that, described spring sheet, and the end between adjacent two flat spring sheets is provided with end anti-attrition sheet, and middle part is provided with middle part anti-attrition sheet.
5. a kind of special-shaped leaf spring as claimed in claim 1, is characterized in that, the female section, and its middle part connects by centre bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685633.1U CN203532600U (en) | 2013-11-01 | 2013-11-01 | Special-shaped plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685633.1U CN203532600U (en) | 2013-11-01 | 2013-11-01 | Special-shaped plate spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532600U true CN203532600U (en) | 2014-04-09 |
Family
ID=50418811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685633.1U Expired - Fee Related CN203532600U (en) | 2013-11-01 | 2013-11-01 | Special-shaped plate spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314071A (en) * | 2017-06-30 | 2017-11-03 | 山东联美弹簧科技股份有限公司 | Automobile composite leaf spring |
-
2013
- 2013-11-01 CN CN201320685633.1U patent/CN203532600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314071A (en) * | 2017-06-30 | 2017-11-03 | 山东联美弹簧科技股份有限公司 | Automobile composite leaf spring |
| WO2019001508A1 (en) * | 2017-06-30 | 2019-01-03 | 山东联美弹簧科技股份有限公司 | Automobile composite board 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: 20140409 Termination date: 20171101 |