CN113847375A - A multi-stage energy-absorbing buffer device - Google Patents

Abstract

The invention relates to a multi-stage energy-absorbing buffer device, comprising an anti-shock mechanism and a honeycomb interlayer, and the honeycomb sandwich is arranged inside the anti-shock mechanism. The anti-shock mechanism includes an upper bottom plate, a connecting curved beam, and a lower bottom plate. The upper bottom plate and the lower bottom plate are arranged up and down, and the surrounding areas are connected by the connecting curved beams; the honeycomb interlayer is arranged in the inner space formed by the upper bottom plate, the connecting curved beam and the lower bottom plate. , the honeycomb interlayer is fixed on the lower bottom plate. The upper and lower bottom plates are provided with a plurality of grooves around them, and pin holes are provided on the sides of the grooves. . The invention has an anti-shock mechanism and a honeycomb interlayer two-stage anti-shock energy-absorbing structure, which can effectively improve the energy-absorbing and buffering capacity of the buffering energy-absorbing device.

Description

A multi-stage energy-absorbing buffer device

technical field

The invention belongs to the technical field of buffer energy absorption, and in particular relates to a multi-stage energy absorption buffer device.

Background technique

In military, civil, transportation, industrial and other fields, automobiles, aerospace, ships, construction machinery and equipment are easily affected by vibration and shock. Vibration, collision and shock will shorten the life of the equipment, damage it, and even threaten human life in severe cases. In the case of automobile collision, ship collision, aircraft take-off and landing, elevator falling, impact ground pressure, etc., the impact time of the collision impact is short, the impact force is strong, and the damage degree is large, but it cannot be avoided. method. When subjected to an impact, the energy-absorbing buffer device absorbs the energy generated by the impact through plastic deformation or destruction of the internal device structure, and at the same time weakens the impact strength and reduces the impact speed. However, the existing energy-absorbing buffer device has no obvious energy-absorbing effect, low energy-absorbing efficiency, and single energy-absorbing path.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the present invention provides a multi-stage energy absorption buffer device to solve the problems of the existing energy absorption device having a single energy absorption path and low energy absorption utilization rate.

A multi-stage energy absorbing buffer device comprises an anti-shock and abdication mechanism and a honeycomb interlayer, and the honeycomb interlayer is arranged inside the anti-shock and abdicate mechanism.

The honeycomb interlayer is a honeycomb structure composed of regular hexagonal back-to-back symmetrical arrangement.

The honeycomb interlayer is made of stainless steel.

The anti-shock yielding mechanism includes an upper bottom plate, a connecting curved beam, and a lower bottom plate, the upper bottom plate and the lower bottom plate are arranged up and down, and the surrounding is connected by the connecting curved beams; the honeycomb interlayer is arranged on the upper bottom plate, the connecting curved beam and the lower bottom plate. In the interior space, the honeycomb interlayer is fixed on the lower bottom plate.

The upper and lower base plates are provided with a plurality of grooves around the sides, and pin holes are formed on the sides of the grooves. .

The honeycomb interlayer is connected and fixed with the lower bottom plate by means of bonding.

The upper bottom plate and the lower bottom plate are made of Q235 steel.

The connecting curved beam is "U"-shaped and uses 65 manganese material.

A space is left between the honeycomb interlayer and the upper bottom plate.

The beneficial effects of the present invention are as follows: the present invention is provided with a honeycomb interlayer and an anti-shock mechanism. During static loading, the buckling properties of the connected curved beams are used to maintain a stable state. When a high-strength impact occurs, the plastic deformation of the connecting curved beam is used to absorb the energy generated by the impact, and the first-level energy absorption buffer is realized. Can buffer. The two-stage energy absorption of the anti-shock mechanism and the honeycomb interlayer can effectively improve the buffer energy absorption capacity and energy absorption efficiency of the buffer energy absorption device, and effectively solve the problem of low energy absorption efficiency and insignificant energy absorption effect of the energy absorption buffer device.

Description of drawings

1 is a schematic diagram of a multi-stage energy-absorbing buffer device provided in the present invention;

Fig. 2 is the schematic diagram of the anti-shock mechanism in the present invention;

Fig. 3 is the schematic diagram of connecting curved beams in the present invention;

Fig. 4 is the schematic diagram of the honeycomb interlayer in the present invention;

in,

1 upper base plate, 2 connecting curved beam, 3 lower base plate, 4 honeycomb interlayer.

Detailed ways

In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments.

As shown in FIG. 1, a multi-stage energy absorption buffer device includes an anti-shock mechanism and a honeycomb interlayer 4, and the honeycomb sandwich 4 is arranged inside the anti-shock mechanism; as shown in FIG. 2, the anti-shock mechanism includes an upper bottom plate 1 , connect the curved beam 2, the lower base plate 3, the upper base plate 1 and the lower base plate 3 are arranged up and down, and the four sides are connected by connecting the curved beam 2; A pin hole is opened on the side, and the connecting curved beam 2 is arranged in the groove around the upper base plate 1 and the lower base plate 3 through the pin shaft to connect the upper base plate 1 and the lower base plate 3 . The honeycomb interlayer 4 is arranged in the inner space formed by the upper bottom plate 1, the connecting curved beam 2 and the lower bottom plate 3, the honeycomb interlayer 4 is fixed on the lower bottom plate 3, and there is a space between the honeycomb interlayer and the upper bottom plate. According to the actual working situation, a connecting device needs to be installed on the lower bottom plate 3 by itself, so as to play the role of multi-level buffering for different occasions.

Both the upper bottom plate 1 and the lower bottom plate 3 are made of Q235 steel, so that the buffer device has better plasticity and toughness.

The multi-stage energy absorbing buffer device described in this embodiment is used for the hydraulic support to resist impact ground pressure. The upper bottom plate 1 is in direct contact with the roadway roof, and is used to support, reinforce and protect the roof; The connecting plates are welded at the four corners respectively, and the connecting plates are welded on the side shields on both sides of the hydraulic support respectively. Energy-absorbing buffer device to prevent movement. Through the two-stage energy absorption and buffering of the energy absorption buffer device, the impact ground pressure energy is reduced, the impact speed is slowed down, the deformation of the hydraulic support is prevented, and the service life of the hydraulic support is prolonged.

As shown in Fig. 3, the connecting curved beam 2 is "U"-shaped, which is the core component of the anti-shock mechanism. It uses its own buckling characteristics to consume part of the energy generated by the impact load to play the role of anti-shock. The connecting curved beam 2 is made of 65 manganese material, and the strength, elasticity and hardness of 65 manganese are higher than other materials, which can improve the impact resistance of the connecting curved beam. In this embodiment, there are a total of 12 connecting curved beams 2 , of which 4 are provided on each of the opposite front and rear sides, and 2 are provided on each of the left and right sides.

The honeycomb interlayer 4 is made of stainless steel to improve its energy absorption efficiency. As shown in FIG. 4 , the honeycomb interlayer 4 is a honeycomb structure composed of regular hexagonal back-to-back symmetrical arrangement. The honeycomb interlayer 4 is connected and fixed with the lower bottom plate 3 by means of bonding to absorb the energy generated by the impact load.

When static load, the connecting curved beam 2 remains in a stable state; when an impact occurs, and the energy generated by the impact load is less than the energy that the connecting curved beam 2 can absorb, the connecting curved beam 2 absorbs the external impact energy through deformation to achieve energy absorption Cushioning; when a high-speed impact load acts, and the energy generated by the load is greater than the energy that the connecting curved beam 2 can absorb, the upper bottom plate 1 moves down, and the connecting curved beam 2 is bent under force. The upper bottom plate 1 is in contact with the honeycomb interlayer 4, and the honeycomb interlayer 4 utilizes its own high-efficiency energy absorption characteristics, and plastic deformation buffers energy absorption. Through the two-stage energy absorption buffer of the anti-shock mechanism and the honeycomb interlayer 4, the energy generated by the impact load can be effectively reduced, and the impact force can be slowed down.

Claims (9)

1. The utility model provides a multistage energy-absorbing buffer which characterized in that: including scour protection abdicating mechanism and honeycomb intermediate layer, the honeycomb intermediate layer sets up in the inside of scour protection abdicating mechanism.

2. The multi-stage energy absorbing bumper system defined in claim 1, wherein: the honeycomb sandwich layer is a honeycomb structure formed by symmetrically arranging and combining regular hexagons back to back.

3. The multi-stage energy absorbing bumper system defined in claim 1, wherein: the honeycomb interlayer is made of stainless steel.

4. The multi-stage energy absorbing bumper system defined in claim 1, wherein: the anti-impact abdicating mechanism comprises an upper bottom plate, a connecting curved beam and a lower bottom plate, wherein the upper bottom plate and the lower bottom plate are arranged up and down and are connected at the periphery through the connecting curved beam; the honeycomb interlayer is arranged in an inner space formed by the upper base plate, the connecting curved beam and the lower base plate, and the honeycomb interlayer is fixed on the lower base plate.

5. The multi-stage energy absorbing bumper system defined in claim 4, wherein: a plurality of grooves are formed in the peripheries of the upper base plate and the lower base plate, pin holes are formed in the side faces of the grooves, and connecting bent beams are arranged in the grooves in the peripheries of the upper base plate and the lower base plate through pin shafts to connect the upper base plate and the lower base plate.

6. The multi-stage energy absorbing bumper system defined in claim 4, wherein: the honeycomb interlayer is fixedly connected with the lower bottom plate in a bonding mode.

7. The multi-stage energy absorbing bumper system defined in claim 4, wherein: the upper bottom plate and the lower bottom plate are made of Q235 steel.

8. The multi-stage energy absorbing bumper system defined in claim 4, wherein: the connecting curved beam is U-shaped and made of 65 manganese materials.

9. The multi-stage energy absorbing bumper system defined in claim 4, wherein: and a space is reserved between the honeycomb interlayer and the upper bottom plate.

Images