CN204821003U - Car leaf spring with high -efficient shock -absorbing function - Google Patents

Abstract

The utility model discloses an automobile leaf spring with high-efficiency damping function, which comprises a main spring, an upper auxiliary spring, a lower auxiliary spring and bolts. There are leaf spring clamps on the inner side respectively. The leaf spring clamps are composed of clamp bolts, sleeves and nuts. There is a lower auxiliary spring at the lower part of the main spring. The reeds of the lower auxiliary spring are curved downward at both ends. There is an upper auxiliary spring on the upper part of the main spring, and two spacers stacked up and down are arranged between the upper auxiliary spring and the main spring. The upper auxiliary spring is composed of three reeds stacked up and down, and the length of the three reeds is from top to bottom. decrease. The utility model has the advantages of reasonable structure, simple process, easy manufacture, low cost and reliable performance, and can effectively improve the ride comfort and the service life of the automobile during driving.

Description

A kind of automobile leaf spring with high-efficiency damping function

technical field

The utility model relates to the field of automobile shock absorption, in particular to an automobile leaf spring with a high-efficiency shock absorption function.

Background technique

At present, the shock absorption of the automobile body generally uses leaf springs to achieve the purpose of shock absorption. The main components of the leaf spring are leaf springs, leaf spring clamps and bolts. The clip connects the leaf spring as a whole, and the uppermost leaf spring has the largest length, and the two ends of the leaf spring are bent to form lifting lugs, which are used to install the leaf spring under the car body. When the leaf spring is stressed, the elastic force of the leaf spring is used to buffer the pressure. However, due to the linear nature of the leaf spring with equal stiffness, the natural vibration frequency of the leaf spring varies greatly when the car is unloaded, fully loaded, or overloaded. , during the driving process and the friction between the leaf springs is easy to produce, not only abnormal noise during work, but also reduces the life of the leaf spring and affects the service life of the whole vehicle; moreover, the assembly process of the leaf spring is complicated, the labor intensity is high, and the production The cost is high, and the existing technology uses leaf springs of equal stiffness, which cannot solve the problem of empty, full-load, and overloaded self-vibration frequencies, and the continuous friction between the reeds of the leaf springs during driving not only produces abnormal noises, but also shortens the life of the leaf springs. generally lower.

Utility model content

The purpose of this utility model is in order to solve the deficiency of above-mentioned technology, provide a kind of automobile leaf spring that is reasonable in design, simple in structure, excellent in performance, reliable in use, easy to manufacture.

The technical solution adopted by the utility model is: a car leaf spring with high-efficiency damping function, including a main spring, an upper auxiliary spring, a lower auxiliary spring and bolts, and the bolts fix the main spring, the upper auxiliary spring, and the lower auxiliary spring Together, the main spring is composed of two long reeds stacked up and down, and the inner sides of the lifting lugs at both ends of the main spring are respectively provided with leaf spring clips, and the leaf spring clips are made of clip bolts, sleeves , nuts, the lower part of the main spring is provided with a lower auxiliary spring, the reed of the lower auxiliary spring is in an arc structure, the upper part of the main spring is provided with an upper auxiliary spring, and an upper auxiliary spring is arranged between the upper auxiliary spring and the main spring. There are two spacers stacked up and down, the upper secondary spring is composed of three reeds stacked up and down, the length of the three reeds decreases from top to bottom, and there is a plastic block between the upper secondary spring and the main spring , the surface of the main spring is provided with a carbon fiber wrapping layer.

Preferably, a plastic block is further provided between the lower auxiliary spring and the main spring.

Preferably, the lifting lug has a notch structure.

Preferably, a stopper is formed between the main spring and the upper auxiliary spring, and the stopper is movably connected to the surface of the main spring facing the upper auxiliary spring.

Preferably, a stopper is formed between the main spring and the lower auxiliary spring, and the stopper is movably connected to the surface of the main spring facing the lower auxiliary spring.

Preferably, the surface of the plastic block is provided with a nano layer.

The advantages and beneficial effects of the utility model are: because there is a gap between the auxiliary spring and the main spring, when there is no load, only the main spring works, and the auxiliary spring is in a no-load state; when it is fully loaded, the main spring and the auxiliary spring bear the full load together. load. The utility model has the advantages of reasonable structure, simple process, easy manufacture, low cost and reliable performance, and can effectively improve the ride comfort and the service life of the automobile during driving.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Marks in the figure: 1. Lifting lug, 2. Main spring, 3. Lower auxiliary spring, 4. Upper auxiliary spring, 5. Bolt, 6. Leaf spring clamp.

Detailed ways

The specific implementation of the utility model will be further described below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figure 1, it is the structure schematic diagram of the present utility model, and the automobile leaf spring of the present embodiment comprises main spring 2, following auxiliary spring 3, upper auxiliary spring 4, bolt 5, and bolt 5 connects main spring 2, lower auxiliary spring 3 , the upper 4 are connected together, the main spring 2 is composed of two long reeds stacked up and down, and the inner sides of the lifting lugs 1 at both ends of the main spring 2 are respectively equipped with leaf spring clamps 6, and the leaf spring clamps 6 are made of clamps. Composed of bolts, sleeves and nuts, a lower auxiliary spring 3 is provided at the lower part of the main spring 2, and the reeds of the lower auxiliary spring 3 are curved downward at both ends. Between the spring 4 and the main spring 2, there are two spacers stacked up and down, and the upper auxiliary spring 4 is composed of three reeds stacked up and down, and the length of the three reeds decreases from top to bottom.

Preferably, a plastic block is provided between the lower secondary spring and the main spring to reduce friction between the reeds. A plastic block is also arranged between the upper auxiliary spring and the main spring, and a carbon fiber wrapping layer is arranged on the surface of the main spring.

Preferably, the surface of the main spring is provided with a carbon fiber wrapping layer, because the carbon fiber is light in material and resistant to friction, thereby prolonging the service life of the reed.

Preferably, a stopper is formed between the main spring and the upper secondary spring, and the stopper is movably connected to the surface of the main spring facing the upper secondary spring, so that the gap between the main spring and the upper secondary spring can be adjusted. Clearance.

Preferably, a stopper is formed between the main spring and the lower auxiliary spring, and the stopper is movably connected to the surface of the main spring facing the lower auxiliary spring, so that the gap between the main spring and the lower auxiliary spring can be adjusted. Clearance.

Preferably, the protective layer is a nano layer.

Because there is a gap between the auxiliary spring and the main spring, only the main spring works when there is no load, and the auxiliary spring is in a no-load state; when it is fully loaded, the main spring and the auxiliary spring bear the full load together. When fully loaded, because the main spring and auxiliary spring have grooves on one side, the friction of the concave hardened layer is reduced, and the fatigue resistance can be improved. The utility model has the advantages of reasonable structure, simple process, easy manufacture, low cost and reliable performance, and can effectively improve the ride comfort and the service life of the automobile during driving. When fully loaded, because the main spring and auxiliary spring have grooves on one side, the friction of the concave hardened layer is reduced, and the fatigue resistance can be improved.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and replacements can also be made. And replacement should also be regarded as the protection scope of the present utility model.

Claims (6)

1. a kind of automobile leaf spring with high-efficiency damping function, it is characterized in that: comprise main spring, last secondary spring, following secondary spring and bolt, described bolt fixes main spring and last secondary spring, following secondary spring together, The main spring is composed of two long reeds stacked up and down. The inner sides of the lifting lugs at both ends of the main spring are respectively provided with leaf spring clamps. The leaf spring clamps are composed of clamp bolts, sleeves and nuts. , the lower part of the main spring is provided with a lower auxiliary spring, the reed of the lower auxiliary spring is in an arc-shaped structure, the upper part of the main spring is provided with an upper auxiliary spring, and an upper and lower overlapping spring is arranged between the upper auxiliary spring and the main spring. Two gaskets, the upper auxiliary spring is composed of three reeds stacked up and down, the length of the three reeds decreases from top to bottom, and a plastic block is also arranged between the upper auxiliary spring and the main spring. The surface of the main spring is covered with carbon fiber wrapping. 2. The automobile leaf spring according to claim 1, characterized in that: a plastic block is provided between the lower auxiliary spring and the main spring. 3. The automobile leaf spring according to claim 1, wherein the lifting lug has a notch structure. 4. The automobile leaf spring according to claim 1, characterized in that: a stopper is formed between the main spring and the upper secondary spring, and the stopper is movably connected to the side of the main spring facing the upper secondary spring. face. 5. The automobile leaf spring according to claim 1, characterized in that: a stopper is formed between the main spring and the lower secondary spring, and the stopper is movably connected to the side of the main spring facing the lower secondary spring. face. 6. The automobile leaf spring according to claim 1, characterized in that: the surface of the plastic block is provided with a nano-layer.