CN216343595U - Variable-cross-section type leaf spring - Google Patents
Variable-cross-section type leaf spring Download PDFInfo
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- CN216343595U CN216343595U CN202122732675.3U CN202122732675U CN216343595U CN 216343595 U CN216343595 U CN 216343595U CN 202122732675 U CN202122732675 U CN 202122732675U CN 216343595 U CN216343595 U CN 216343595U
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Abstract
The utility model discloses a variable cross-section type steel plate spring, which comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a hexagon bolt and a nut, the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are distributed in sequence from top to bottom, and the centers of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are all provided with bolt through holes, the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are fixed through hexagon bolts and nuts, two ends of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are all in V-shaped structures, the variable cross-section type leaf spring is simple in structure and easy and convenient to operate, reduces the weight of a leaf spring, saves materials, provides weight advantages for light weight of a whole vehicle, reduces abnormal sound during no-load braking, and solves the problem of uneven stress of each bridge pivot caused by welding deformation.
Description
Technical Field
The utility model relates to the technical field of transportation, in particular to a variable cross-section type steel plate spring.
Background
After the automobile industry in China developed for 60 years, particularly after reform and opening, automobile enterprises in various countries in the world enter the China market at a dispute, and then the automobile industry enters a real competitive era. The automobile industry in China has developed into an automobile industry system with complete types, continuous increase of production capacity and increasingly improved product level. Quality, technology, service, price become key factors for competition of various part suppliers;
the suspension is one of the main assemblies of modern automobiles, can elastically connect a frame (automobile body) and an axle (wheel), and has the main tasks of transmitting all forces and moments acting between the frame and the wheel, relieving impact load transmitted to the automobile body due to uneven road surface, attenuating vibration of a bearing system caused by the impact load and ensuring that the suspension of the automobile is generally composed of an elastic element, a guide mechanism and a damping device. The elastic elements mainly comprise a leaf spring, a spiral spring, a rubber spring, an air spring, an oil-gas spring and the like, wherein the leaf spring bears the weight (static load) of a carriage and a load in the driving process of the automobile, and also bears the impact load caused by uneven road surface, so that the unidirectional cyclic bending stress is caused. The main failure modes of the plate spring are fatigue fracture and permanent plastic deformation, and the factors influencing the service life of the plate spring, such as design, installation, lubrication, use and the like, and more importantly, the heat treatment quality and the surface quality of the plate spring are the main failure modes. To ensure and improve the quality of heat treatment, quality management must be enhanced and a quality management system must be perfected; improving the product quality becomes a strategic problem of economic development in China, and is a main means of enterprise competition;
the steel plate spring has the functions of buffering, shock absorption and guiding. Simple structure, reliable use, simple process, low cost, convenient maintenance and the like. The static deflection of the steel plate spring is increased along with the increase of the load, the static deflection changes greatly when the steel plate spring is in no-load and full-load, the smoothness is better when the steel plate spring is in full-load, and the smoothness is poor when the steel plate spring is in no-load. Because the sheets are in collision and friction, the passenger car has noise during working, and the passenger car is not frequently used.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the existing defects and provide a variable cross-section type leaf spring which is simple in structure, simple and convenient to operate, reduces the weight of a leaf spring, saves materials, provides a weight advantage for light weight of a whole vehicle, reduces abnormal sound during no-load braking, solves the problem of uneven stress on each bridge pivot caused by welding deformation, and can effectively solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a variable cross-section type steel plate spring comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a hexagon bolt and a nut, wherein the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are sequentially distributed from top to bottom, bolt through holes are formed in the centers of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate, the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are fixed through the hexagon bolt and the nut, the two ends of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are all of V-shaped structures, an inclination angle of 0.6 degrees is formed between the first steel plate and the second steel plate from the middle to the two sides, the thicknesses of the first steel plate, the second steel plate, the third steel plate and the fourth steel plate are gradually reduced from the middle to the two ends, and abnormal noise during no-load braking is effectively reduced through a gap between the first steel plate and the second steel plate, the problem of uneven stress on each bridge fulcrum caused by welding deformation is solved.
Furthermore, an upper gasket is arranged between the hexagon head bolt and the nut and the first steel plate, a lower gasket is arranged between the first steel plate, the second steel plate, the third steel plate and the fourth steel plate respectively, and the first steel plate, the second steel plate, the third steel plate and the fourth steel plate can be separated by the lower gasket to reduce the direct hard friction of the steel plates, so that the pressure distribution between the steel plates is uniform.
Furthermore, the length of first piece of steel sheet and second piece of steel sheet is 110mm, and the both ends of first piece of steel sheet are oval structure, and the both ends of second piece of steel sheet are equipped with the coupling hook.
Further, the length of third steel sheet is 730mm, and the length of fourth steel sheet is 460mm, and the centre of fourth steel sheet is flat and straight face, and the length of flat and straight face is 200 mm.
Compared with the prior art, the utility model has the beneficial effects that: the abnormal sound during the no-load brake is effectively reduced through the inclination angle clearance between the first steel plate and the second steel plate, the condition that stress of each bridge fulcrum is not uniform due to welding deformation is solved, the first steel plate, the second steel plate, the third steel plate and the fourth steel plate can be separated by the lower gasket to reduce direct hard friction of the steel plates, so that pressure between the steel plates is uniformly distributed, the variable cross-section steel plate spring is simple in structure and convenient to operate, the weight of the plate spring is reduced, materials are saved, the weight advantage is provided for lightening the whole vehicle, the abnormal sound during the no-load brake is reduced, and the condition that stress of each bridge fulcrum is not uniform due to welding deformation is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention.
In the figure: 1 first steel plate, 2 second steel plates, 3 third steel plates, 4 fourth steel plates, 5 lower gaskets, 6 upper gaskets, 7 hexagon head bolts and nuts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the variable-section steel plate spring comprises a first steel plate 1, a second steel plate 2, a third steel plate 3, a fourth steel plate 4 and hexagon bolts and nuts 7, wherein the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 are sequentially distributed from top to bottom, bolt through holes are formed in the centers of the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4, the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 are fixed through the hexagon bolts and the nuts 7, the thickness of the first steel plate 1 is smaller than that of the second steel plate 2, the third steel plate 3 and the fourth steel plate 4, the thicknesses of the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 are gradually reduced from the middle to two ends, and the thicknesses of the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 are gradually reduced from the middle to two ends, The two ends of the third steel plate 3 and the fourth steel plate 4 are both in a V-shaped structure, an inclination angle of 0.6 degree is arranged between the first steel plate 1 and the second steel plate 2 from the middle to the two sides, abnormal sound during no-load braking is effectively reduced through an inclination angle gap between the first steel plate 1 and the second steel plate 2, the problem that stress of each bridge pivot is uneven due to welding deformation is solved, an upper gasket 6 is arranged between the hexagon head bolt and nut 7 and the first steel plate 1, a lower gasket 5 is respectively arranged between the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4, direct hard friction can be reduced by separating the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 through the lower gasket 5, pressure distribution among the first steel plate 1 and the second steel plate 2 is uniform, the length of the first steel plate 1 and the second steel plate 2 is 110mm, and the both ends of first piece steel sheet 1 are oval structure, and the both ends of second piece steel sheet 2 are equipped with the coupling hook, the length of third piece steel sheet is 730mm, and the length of fourth piece steel sheet 4 is 460mm, and the centre of fourth piece steel sheet 4 is flat plane, and the length of flat plane is 200mm, this variable cross section shaped steel plate spring, moreover, the steam generator is simple in structure, and is easy and simple to handle, the weight of leaf spring has been alleviateed, save material, provide the weight advantage for whole car lightweight, abnormal sound when having reduced the no-load brake, the inhomogeneous condition of each bridge fulcrum atress because of welding deformation arouses has been solved.
When in use: the abnormal sound during no-load braking is effectively reduced through the inclination angle clearance between the first steel plate 1 and the second steel plate 2, the problem of uneven stress of each bridge pivot caused by welding deformation is solved, the first steel plate 1, the second steel plate 2, the third steel plate 3 and the fourth steel plate 4 can be separated through the lower gasket 5, the direct hard friction of the steel plates can be reduced, and the pressure distribution between the steel plates is uniform.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a variable cross section type leaf spring, includes first piece steel sheet (1), second piece steel sheet (2), third piece steel sheet (3), fourth piece steel sheet (4) and hexagon head bolt and nut (7), its characterized in that: the first steel plate (1), the second steel plate (2), the third steel plate (3) and the fourth steel plate (4) are distributed in sequence from top to bottom, and the centers of the first steel plate (1), the second steel plate (2), the third steel plate (3) and the fourth steel plate (4) are all provided with bolt through holes, and the first steel plate (1), the second steel plate (2), the third steel plate (3) and the fourth steel plate (4) are fixed through a hexagon bolt and a nut (7), the two ends of the first steel plate (1), the second steel plate (2), the third steel plate (3) and the fourth steel plate (4) are both V-shaped structures, an inclination angle of 0.6 degrees is arranged between the first steel plate (1) and the second steel plate (2) from the middle to the two sides, and the thicknesses of the first steel plate (1), the second steel plate (2), the third steel plate (3) and the fourth steel plate (4) are gradually reduced from the middle to the two ends.
2. The variable cross-section leaf spring of claim 1, wherein: be equipped with gasket (6) between hexagon head bolt and nut (7) and first piece steel sheet (1) to be equipped with one lower gasket (5) between first piece steel sheet (1), second piece steel sheet (2), third piece steel sheet (3) and fourth piece steel sheet (4) respectively.
3. The variable cross-section leaf spring of claim 1, wherein: the length of first piece steel sheet (1) and second piece steel sheet (2) is 110mm, and the both ends of first piece steel sheet (1) are oval structure, and the both ends of second piece steel sheet (2) are equipped with the coupling hook.
4. The variable cross-section leaf spring of claim 1, wherein: the length of third steel sheet is 730mm, and the length of fourth steel sheet (4) is 460mm to the centre of fourth steel sheet (4) is straight face, and the length of straight face is 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122732675.3U CN216343595U (en) | 2021-11-10 | 2021-11-10 | Variable-cross-section type leaf spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122732675.3U CN216343595U (en) | 2021-11-10 | 2021-11-10 | Variable-cross-section type leaf spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343595U true CN216343595U (en) | 2022-04-19 |
Family
ID=81136086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122732675.3U Active CN216343595U (en) | 2021-11-10 | 2021-11-10 | Variable-cross-section type leaf spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343595U (en) |
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2021
- 2021-11-10 CN CN202122732675.3U patent/CN216343595U/en active Active
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