阅读说明：本技术 一种多级吸能缓冲装置 (Multistage energy-absorbing buffer device ) 是由 苏金鹏 张强 姜玉燕 臧万顺 冯龙 濮远峰 于 2021-09-24 设计创作，主要内容包括：本发明涉及一种多级吸能缓冲装置,包括防冲机构和蜂窝夹层,蜂窝夹层设置在防冲机构的内部。所述防冲机构包括上底板、连接曲梁、下底板,所述上底板与下底板上下布置,四周通过连接曲梁连接；蜂窝夹层设置在上底板、连接曲梁和下底板构成的内部空间,蜂窝夹层固定在下底板上。所述上底板和下底板的四周开设有多个凹槽,凹槽侧面开设有销孔,连接曲梁通过销轴设置在上底板和下底板四周的凹槽内,将上底板和下底板连接。本发明具有防冲机构和蜂窝夹层两级防冲吸能结构,能够有效提高缓冲吸能装置的吸能缓冲能力。(The invention relates to a multistage energy-absorbing buffer device which comprises an anti-impact mechanism and a honeycomb interlayer, wherein the honeycomb interlayer is arranged inside the anti-impact mechanism. The anti-impact 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. 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. The energy-absorbing and energy-absorbing device is provided with the two-stage anti-impact and energy-absorbing structure comprising the anti-impact mechanism and the honeycomb interlayer, and the energy-absorbing and energy-absorbing capacity of the energy-absorbing and energy-absorbing device can be effectively improved.)

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.

Technical Field

The invention belongs to the technical field of buffering and energy absorption, and particularly relates to a multistage energy absorption buffering device.

Background

In the fields of military, civil use, transportation, industry and the like, automobiles, aerospace, ships, engineering machinery and equipment and the like are susceptible to vibration impact. The vibration and collision impact can cause the shortening and damage of the service life of the equipment, and even threaten the life safety of people when serious. The impact time of collision impact in the conditions of automobile collision, ship collision, airplane landing, elevator falling, rock burst and the like is short, the impact strength is strong, the damage degree is large, but the method cannot avoid the situation, and the energy absorption buffer device is a method for effectively relieving impact damage. When the energy absorption buffer device is impacted, the energy absorption buffer device is subjected to plastic deformation or destruction through an internal device structure to absorb energy generated by impact, and simultaneously, the impact force is weakened, and the impact speed is reduced. However, the existing energy absorption buffer device has the disadvantages of unobvious energy absorption effect, low energy absorption efficiency and single energy absorption way.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a multistage energy absorption buffer device to solve the problems of single energy absorption way and low energy absorption utilization rate of the conventional energy absorption device.

The utility model provides a multistage energy-absorbing buffer, includes that the scour protection lets a mechanism and honeycomb intermediate layer, the honeycomb intermediate layer sets up the inside at the scour protection mechanism of stepping down.

The honeycomb sandwich layer is a honeycomb structure formed by symmetrically arranging and combining regular hexagons back to back.

The honeycomb interlayer is made of stainless steel.

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.

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.

The honeycomb interlayer is fixedly connected with the lower bottom plate in a bonding mode.

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

The connecting curved beam is U-shaped and made of 65 manganese materials.

And a space is reserved between the honeycomb interlayer and the upper bottom plate.

The invention has the beneficial effects that: the invention is provided with a honeycomb interlayer and an anti-impact mechanism. And during static load, the stable state is kept by utilizing the buckling characteristic of the connecting curved beam. When high-strength impact occurs, the plastic deformation of the connecting curved beam is utilized to absorb the energy generated by the impact, so that primary energy absorption and buffering are realized, and the energy absorption and buffering effect of the high-strength impact effect is realized by utilizing the efficient energy absorption characteristic of the honeycomb structure, so that secondary energy absorption and buffering are realized. The two-stage energy absorption of the anti-impact mechanism and the honeycomb interlayer can effectively improve the buffering energy absorption capacity and the energy absorption efficiency of the buffering energy absorption device, and effectively solves the problems of low energy absorption efficiency and unobvious energy absorption effect of the energy absorption buffer device.

Drawings

FIG. 1 is a schematic view of a multi-stage energy absorbing bumper system provided in the present invention;

FIG. 2 is a schematic view of an anti-impingement mechanism in the present invention;

FIG. 3 is a schematic view of a connecting curved beam in the present invention;

FIG. 4 is a schematic view of a honeycomb sandwich of the present invention;

wherein the content of the first and second substances,

1 upper plate, 2 connecting curved beam, 3 lower plate, 4 honeycomb intermediate layers.

Detailed Description

For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, a multi-stage energy absorption buffer device comprises an anti-impact mechanism and a honeycomb sandwich layer 4, wherein the honeycomb sandwich layer 4 is arranged inside the anti-impact mechanism; as shown in fig. 2, the impact prevention mechanism comprises an upper base plate 1, a connecting curved beam 2 and a lower base plate 3, wherein the upper base plate 1 and the lower base plate 3 are arranged up and down and are connected at the periphery through the connecting curved beam 2; a plurality of grooves are formed in the peripheries of the upper base plate 1 and the lower base plate 3, pin holes are formed in the side faces of the grooves, and the connecting bent beam 2 is arranged in the grooves in the peripheries of the upper base plate 1 and the lower base plate 3 through pin shafts to connect the upper base plate 1 and the lower base plate 3. The honeycomb sandwich layer 4 is arranged in an inner space formed by the upper base plate 1, the connecting curved beam 2 and the lower base plate 3, the honeycomb sandwich layer 4 is fixed on the lower base plate 3, and a space is reserved between the honeycomb sandwich layer and the upper base plate. According to the needs of actual work occasion, a connecting device is automatically arranged on the lower bottom plate 3, so that the effect of multi-stage buffering on different occasions is achieved.

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 multistage energy absorption buffer device is used for resisting rock burst of the hydraulic support. The upper bottom plate 1 is in direct contact with a roadway top plate and is used for supporting, reinforcing and protecting the top plate; lower plate 3 and hydraulic support back timber direct contact, lower plate 3 is connected fixedly through connecting plate and hydraulic support, welds the connecting plate respectively in four angle departments of lower plate 3 promptly, and hydraulic support both sides side guard plate welds the connecting plate respectively simultaneously, passes through bolted connection between the connecting plate of four angle departments of lower plate 3 and the connecting plate of hydraulic support both sides side guard plate, and fixed energy-absorbing buffer prevents the drunkenness. Through two-stage energy absorption and buffering of the energy absorption and buffering device, the energy of rock burst is reduced, the impact speed is reduced, the hydraulic support is prevented from deforming, and the service life of the hydraulic support is prolonged.

As shown in fig. 3, the connecting curved beam 2 is U-shaped, is a core member of the impact prevention mechanism, and consumes a part of energy generated by an impact load by utilizing a self-buckling characteristic to play an impact prevention role. Connect curved beam 2 and adopt 65 manganese material, 65 manganese's intensity, elasticity and hardness are compared in other materials height, can improve the scour protection performance of connecting curved beam. In the embodiment, the number of the connecting curved beams 2 is 12, wherein 4 connecting curved beams are respectively arranged at the front side and the rear side which are opposite, and 2 connecting curved beams are respectively arranged at the left side and the right side.

The honeycomb interlayer 4 is made of stainless steel, so that the energy absorption efficiency is improved. As shown in fig. 4, the honeycomb sandwich layer 4 is a honeycomb structure formed by symmetrically arranging and combining regular hexagons back to back, and the honeycomb sandwich layer 4 is connected and fixed with the lower base plate 3 in a bonding manner to absorb energy generated by impact load.

When in static load, the connecting curved beam 2 keeps a stable state; when impact occurs and the energy generated by the impact load is less than the energy which can be absorbed by the connecting curved beam 2, the connecting curved beam 2 absorbs the external impact energy through deformation to realize energy absorption and buffering; when high-speed impact load acts and energy generated by the load is larger than the energy which can be absorbed by the connecting curved beam 2, the upper base plate 1 moves downwards, the connecting curved beam 2 is stressed and bent, rapid instability and damage are caused by the buckling characteristic of the connecting curved beam 2, the upper base plate 1 is in contact with the honeycomb interlayer 4, the honeycomb interlayer 4 utilizes the high-efficiency energy absorption characteristic of the honeycomb interlayer, and plastic deformation is used for buffering and absorbing energy. Through the two-stage energy absorption buffering of the anti-impact mechanism and the honeycomb interlayer 4, the energy generated by impact load can be effectively reduced, and the impact force is reduced.