CN204961663U - Second grade damping device - Google Patents

Abstract

The utility model relates to a secondary damping device, which belongs to the technical field of auto parts. The utility model comprises a shock-absorbing telescopic cylinder I, a hardness regulator, a thick shock-absorbing spring, a spring coupler, a thin shock-absorbing spring, and a shock-absorbing telescopic cylinder II; The coarse shock absorbing spring that lives and fits on the shock absorbing telescopic tube Ⅰ, the lower end of the coarse shock absorbing spring presses the spring coupler, the lower end of the spring coupler presses the fine shock absorbing spring, and the fine shock absorbing spring is placed on the shock absorbing telescopic tube Ⅱ above, and the thin damping spring is combined with the lower end of the shock-absorbing telescopic cylinder II. The utility model connects two springs with different spring stiffness coefficients through a spring coupler, so that the two springs work together to achieve a better shock absorption effect than the original shock absorption, and can effectively avoid traffic accidents caused by unsuitable shock absorption hardness. and vehicle wear and tear.

Description

A two-stage shock absorber

technical field

The utility model relates to a secondary damping device, which belongs to the technical field of auto parts.

Background technique

The shock absorber is actually an energy conversion device. Its working principle is to convert the work done by the external force into elastic potential energy, and then consume the elastic potential energy through the friction between the shock absorber arm and the shock absorber cylinder, and finally the external force The work done is dissipated as heat energy, which is what the shock absorber does.

The shock absorber is composed of a shock absorber, a shock absorber arm and a shock absorber spring. The shock-absorbing cylinder and the shock-absorbing arm generate heat through relative sliding friction, which is commonly referred to as the shock-absorbing stroke, while the spring temporarily stores energy as an intermediate! But as far as this intermediate spring is concerned, its spring stiffness coefficient is very important to the shock absorption effect, which is commonly referred to as the hardness of the spring. When the stiffness coefficient of the spring is too large, that is, the spring is too hard, the stroke of the shock absorber will be too small, and the shock absorber cannot perform the shock absorption effect well, thus losing the shock absorption effect. Conversely, if the spring stiffness coefficient is too small, the stroke of the shock absorber will be too large, which may damage the shock absorber.

Generally speaking, as far as vehicles in life are concerned, shock absorption is an essential thing, but traffic accidents often occur because of shock absorption. Usually, if the shock absorber of a vehicle is too soft, it is easy for the vehicle to bend when cornering at high speed. A rollover occurred, causing a traffic accident. And if the spring is too hard, the damping effect will be lost, which will not only make people feel uncomfortable, but also cause great damage to the car body itself.

Contents of the invention

The technical problem to be solved by the utility model is: the utility model provides a two-stage damping device, which is used to eliminate some traffic accidents caused by the original damping with a single stiffness coefficient of the damping spring, and also improves the strength of the damping spring. The loss of the vehicle and the improvement of the comfort of people in the car caused by the excessive degree coefficient.

The technical scheme of the utility model is: a secondary shock absorbing device, including a shock absorbing telescopic cylinder I1, a hardness regulator 2, a thick shock absorbing spring 3, a spring coupler 4, a thin shock absorbing spring 5, and a shock absorbing telescopic cylinder II6;

The shock-absorbing telescopic cylinder I1 is screwed to the hardness regulator 2, the hardness regulator 2 presses and covers the coarse shock-absorbing spring 3 on the shock-absorbing telescopic cylinder I1, and the lower end surface of the coarse shock-absorbing spring 3 presses the spring coupler 4 , the lower end of the spring coupler 4 presses the thin damping spring 5, the thin damping spring 5 is set on the shock absorbing telescopic tube II6, and the thin damping spring 5 is combined with the lower end of the shock absorbing telescopic tube II6.

The thin damping spring 5 can be longer than the thick damping spring 3 .

The thick damping spring 3 can be longer than the thin damping spring 5 .

The working process of the present utility model is:

Two springs (coarse shock-absorbing spring 3 and thin shock-absorbing spring 5) with different stiffness coefficients are stacked together to act as the original independent springs. When the external force is not too large, it is activated through the soft spring telescopic stroke, and when the external force is too large, the thick damping spring 3 and the thin damping spring 5 act together, so that a certain range of external force is controlled within a certain range of expansion and contraction In addition, when the external force is too large, not only will the shock absorber not be damaged, but also the two springs can be coordinated at the same time to achieve a good shock absorption effect. Utilizing this two-stage shock absorber can completely make up for the problems caused by shock absorption in the above-mentioned vehicles. When the vehicle is cornering, the thick shock absorber spring 3 of the two-stage shock absorber will play a role, and it will prevent the travel from over-traveling. Large rollover, and on roads that are not too subverted, the thin shock absorbing spring 5 will play a good role. If it is an independent spring that wants to play a role on a road that is not too bumpy, then its own spring stiffness coefficient It needs to be very small, but if the coefficient is too small, traffic accidents will occur. If you don’t want traffic accidents, then the spring’s stiffness coefficient will be very large. Then, hard springs can’t work well on roads that are not too bumpy. played a role;

Through the up and down sliding of the spring coupler 4, the coordinated work of different damping springs is achieved;

The two-stage damping device can have two kinds of spring matching modes to cooperate by changing the position of the spring coupler 4. The thin damping spring 5 is the main working spring in Fig. 1, the thin damping spring 5 is longer, and the thick damping spring 3 short, thick damping spring 3 is auxiliary buffer spring. Thick damping spring 3 is the main working spring among Fig. 2, thick damping spring 3 is longer, thin damping spring 5 is shorter, and thin damping spring 5 is auxiliary buffer spring. Through two different matching methods, it can better adapt to different road conditions and more vehicles with different needs.

The beneficial effects of the present invention are:

1. It can effectively avoid the rollover of the vehicle when cornering at high speed, thereby avoiding traffic accidents.

2. By cooperating with springs of different lengths, it can better adapt to vehicles with different needs and better adapt to different road conditions.

3. Through the cooperation of the two springs, the shock absorber can better exert its shock absorbing effect, reduce the loss of the vehicle itself, and make the car feel more comfortable.

4. This patent can make up the defects of the thick and thin springs, so that the telescopic stroke of the shock absorber itself can be controlled in sections, so that its stroke will not be too large or too small under normal working conditions.

Description of drawings

Fig. 1 is a schematic structural view 1 of the present utility model (the thick shock-absorbing spring is short, and the thin shock-absorbing spring is long);

Fig. 2 is a structural schematic diagram 2 of the present utility model (the thick shock-absorbing spring is long, and the thin shock-absorbing spring is short);

Fig. 3 is a schematic diagram of the hardness adjustment structure of the present utility model;

Fig. 4 is a schematic diagram of the structure of the spring coupler of the present invention (the spring coupler is installed on the thick damping spring);

Fig. 5 is a schematic diagram of the structure of the spring coupler of the present invention (the spring coupler is mounted on a thin damping spring).

Each label in Fig. 1-5: 1-shock-absorbing telescopic tube I, 2-hardness regulator, 3-coarse shock-absorbing spring, 4-spring coupler, 5-fine shock-absorbing spring, 6-shock-absorbing telescopic tube II.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.

Embodiment 1: As shown in Figures 1-5, a two-stage shock absorbing device includes a shock absorbing telescopic tube I1, a hardness regulator 2, a thick shock absorbing spring 3, a spring coupler 4, a fine shock absorbing spring 5, and a shock absorbing spring. Shock telescopic cylinder Ⅱ6;

The shock-absorbing telescopic cylinder I1 is screwed to the hardness regulator 2, the hardness regulator 2 presses and covers the coarse shock-absorbing spring 3 on the shock-absorbing telescopic cylinder I1, and the lower end surface of the coarse shock-absorbing spring 3 presses the spring coupler 4 , the lower end of the spring coupler 4 presses the thin damping spring 5, the thin damping spring 5 is set on the shock absorbing telescopic tube II6, and the thin damping spring 5 is combined with the lower end of the shock absorbing telescopic tube II6.

Embodiment 2: As shown in Figures 1-5, a two-stage shock absorbing device includes a shock absorbing telescopic tube I1, a hardness adjuster 2, a thick shock absorbing spring 3, a spring coupler 4, a fine shock absorbing spring 5, and a shock absorbing spring. Shock telescopic cylinder Ⅱ6;

The shock-absorbing telescopic cylinder I1 is screwed to the hardness regulator 2, the hardness regulator 2 presses and covers the coarse shock-absorbing spring 3 on the shock-absorbing telescopic cylinder I1, and the lower end surface of the coarse shock-absorbing spring 3 presses the spring coupler 4 , the lower end of the spring coupler 4 presses the thin damping spring 5, the thin damping spring 5 is set on the shock absorbing telescopic tube II6, and the thin damping spring 5 is combined with the lower end of the shock absorbing telescopic tube II6.

The thin damping spring 5 can be longer than the thick damping spring 3 .

Embodiment 3: As shown in Figures 1-5, a two-stage shock absorbing device includes a shock absorbing telescopic tube I1, a hardness adjuster 2, a thick shock absorbing spring 3, a spring coupler 4, a fine shock absorbing spring 5, and a shock absorbing spring. Shock telescopic cylinder Ⅱ6;

The shock-absorbing telescopic cylinder I1 is screwed to the hardness regulator 2, the hardness regulator 2 presses and covers the coarse shock-absorbing spring 3 on the shock-absorbing telescopic cylinder I1, and the lower end surface of the coarse shock-absorbing spring 3 presses the spring coupler 4 , the lower end of the spring coupler 4 presses the thin damping spring 5, the thin damping spring 5 is set on the shock absorbing telescopic tube II6, and the thin damping spring 5 is combined with the lower end of the shock absorbing telescopic tube II6.

The thick damping spring 3 can be longer than the thin damping spring 5 .

The specific embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Various changes are made.

Claims (3)

1. a two-step buffer, is characterized in that: comprise damping retracting cylinder I (1), hardness adjuster (2), thick damping spring (3), spring colligator (4), thin damping spring (5), damping retracting cylinder II (6);

Described damping retracting cylinder I (1) is threaded connection hardness adjuster (2), hardness adjuster (2) is pushed down and is enclosed within the thick damping spring (3) above damping retracting cylinder I (1), thick damping spring (3) lower end surface pressing spring colligator (4), thin damping spring (5) is pushed down in spring colligator (4) lower end, thin damping spring (5) is enclosed within damping retracting cylinder II (6), and thin damping spring (5) is combined with damping retracting cylinder II (6) lower end.

2. two-step buffer according to claim 1, is characterized in that: described thin damping spring (5) is longer than thick damping spring (3).

3. two-step buffer according to claim 1, is characterized in that: described thick damping spring (3) is longer than thin damping spring (5).