CN112391883A

CN112391883A - High-speed railway shock pad

Info

Publication number: CN112391883A
Application number: CN201910751115.7A
Authority: CN
Inventors: 乔翔宇; 金传辉; 金菘
Original assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Current assignee: Yangzhou Huajiao Rail Transit Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2021-02-23

Abstract

The invention relates to the technical field of high-speed railway shock absorption, and discloses a high-speed railway shock absorption pad which comprises a lower base layer, wherein a buffer layer is arranged at the top of the lower base layer, a sound insulation layer is arranged at the top of the buffer layer, an elastic cushion layer is arranged at the top of the sound insulation layer, an upper base layer is arranged at the top of the elastic cushion layer, side buffer cavities positioned between the lower base layer and the sound insulation layer are arranged at two sides of an inner cavity of the buffer layer, a middle buffer cavity positioned between the two side buffer cavities is arranged in the middle of the inner cavity of the buffer layer, and a gas outlet communicated with the middle buffer cavity. This high-speed railway shock pad through setting up the puigging between elastic cushion layer and buffer layer, when utilizing the inside enhancement support piece of puigging to ensure the intensity of shock pad itself, inhales the sound cotton through seting up the sound of inhaling of filling in the inside cavity of puigging and cavity, absorbs the noise that shock pad in-process and object vibrations produced, improves the syllable-dividing effect of this shock pad.

Description

High-speed railway shock pad

Technical Field

The invention relates to the technical field of high-speed railway shock absorption, in particular to a high-speed railway shock absorption pad.

Background

The high-speed railway is called high-speed railway for short, and refers to a railway with high infrastructure design speed standard and capable of being used for safe and high-speed running of trains on the railway, the train operation speed is more than 250km/h, the high-speed railway generally adopts ballastless tracks, and a small part of the high-speed railway also adopts ballasted tracks.

However, the existing shock pad for the high-speed railway is simple in structure, when the shock pad is stressed, the existing high-speed railway usually adopts an elastic material to block or utilize a buffering energy-absorbing device to consume impact force, so as to achieve the purposes of buffering and damping and reducing damage to objects caused by the impact force, but the impact force cannot be countershocked and offset, therefore, the existing shock pad for the high-speed railway is poor in using effect, not long in service life, poor in sound insulation effect, and capable of improving the space.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a shock pad for a high-speed railway, which has the advantages of counteracting the impact force borne by the shock pad by reverse impact and improving the buffering and shock absorbing effects and the sound insulation effects, and solves the problems that the structure of the shock pad for the high-speed railway is simple, when the shock pad is stressed, the conventional high-speed railway usually adopts an elastic material to block or utilizes a buffering and energy absorbing device to consume the impact force so as to achieve the purposes of buffering and shock absorbing and reducing the damage of the impact force to an object, but the reverse impact counteracts the borne impact force, so that the shock pad for the high-speed railway has poor using effect and long service life, the sound insulation effect of the shock pad for the high-speed railway is poor, and the space is improved.

The invention provides the following technical scheme: a shock pad for a high-speed railway comprises a lower base layer, wherein a buffer layer is arranged at the top of the lower base layer, a sound insulation layer is arranged at the top of the buffer layer, an elastic cushion layer is arranged at the top of the sound insulation layer, an upper base layer is arranged at the top of the elastic cushion layer, side buffer cavities between the lower base layer and the sound insulation layer are arranged at two sides of an inner cavity of the buffer layer, a middle buffer cavity between the two side buffer cavities is arranged in the middle of the inner cavity of the buffer layer, a gas outlet for communicating the middle buffer cavity and the side buffer cavities is formed in the bottom between the middle buffer cavity and the side buffer cavities, guide rods are fixedly connected with two sides of the bottom of the inner cavity of the middle buffer cavity, a magnetic piston is movably sleeved at the bottom between the two guide rods, a first spring is movably sleeved at the tops of the two guide rods, a magnet, the bottom fixedly connected with movable rod of last basic unit, the top movable sleeve of movable rod is equipped with the second spring, the movable rod runs through elastic cushion, puigging to extend to the side cushion chamber of buffer layer in, and the bottom fixedly connected with of movable rod is located the inside piston plate of side cushion chamber, the movable rod cup joints with the puigging activity.

Preferably, the inside of puigging is equipped with the enhancement support piece of fixed suit between its inner chamber top and bottom, and the cavity has been seted up to the inside of puigging, the cavity intussuseption is filled with and inhales the sound cotton.

Preferably, the side buffer cavities are filled with compressed air.

Preferably, the top of the first spring is fixedly connected with the bottom of the magnet, and the bottom of the first spring is fixedly connected with the top of the magnetic piston.

Preferably, the magnetism of the magnetic piston is the same as that of the magnet, and the magnetic piston is matched with the middle buffer cavity in size and movably sleeved inside the middle buffer cavity.

Preferably, the top of the second spring is fixedly connected with the bottom of the upper base layer, and the bottom of the second spring is fixedly connected with the top of the soundproof layer.

Preferably, the piston plate is matched with the side buffer cavity in size and movably sleeved in the side buffer cavity.

Compared with the prior art, the invention has the following beneficial effects:

1. the shock pad for the high-speed railway is characterized in that through the matching of the elastic cushion layer, the movable rod and the second spring, when the shock pad is stressed, the upper base layer compresses the elastic cushion layer and the second spring and drives the movable rod to descend, the shock absorption pad can consume and absorb the impact force to realize one-time buffering and shock absorption, when the movable rod is pressed down under the stress, the movable rod drives the piston plate to compress the air in the buffer cavity at the side and compress the air into the middle buffer cavity through the air outlet, thereby pressing the magnetic piston upward, causing the magnetic piston to compress the first spring and to be close to the magnet, but the magnet is the same as the magnetic piston, causing the magnet to repel the magnetic piston, the magnetic piston is applied with downward force to form recoil force, so that impact force borne by the shock pad is counteracted, the buffering and shock absorption effects of the shock pad are improved, the damage of the impact force to the shock pad and an object can be reduced, and a better protection effect is achieved.

2. This high-speed railway shock pad through setting up the puigging between elastic cushion layer and buffer layer, when utilizing the inside enhancement support piece of puigging to ensure the intensity of shock pad itself, inhales the sound cotton through seting up the sound of inhaling of filling in the inside cavity of puigging and cavity, absorbs the noise that shock pad in-process and object vibrations produced, improves the syllable-dividing effect of this shock pad.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a structural acoustical layer of the present invention.

In the figure: 1. a lower base layer; 2. a buffer layer; 3. a sound insulating layer; 301. a reinforcing support; 302. a cavity; 303. sound-absorbing cotton; 4. an elastic cushion layer; 5. an upper base layer; 6. a side buffer chamber; 7. an air outlet; 8. a middle buffer cavity; 9. a guide bar; 10. a magnetic piston; 11. a first spring; 12. a magnet; 13. a movable rod; 14. a second spring; 15. a piston plate.

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, a shock pad for a high speed railway comprises a lower base layer 1, a buffer layer 2 is arranged on the top of the lower base layer 1, a sound insulation layer 3 is arranged on the top of the buffer layer 2, a reinforcing support member 301 fixedly sleeved between the top and the bottom of an inner cavity of the sound insulation layer 3 is arranged in the sound insulation layer 3, the reinforcing support member 301 in a shape of 'ii' is used for ensuring the strength of the shock pad after a cavity 302 is formed in the sound insulation layer 3, the cavity 302 is formed in the sound insulation layer 3, sound absorbing cotton 303 is filled in the cavity 302, noise generated by vibration of an object during the use of the shock pad is absorbed by using the cavity 302 and the sound absorbing cotton 303 filled in the cavity 302, the sound insulation effect of the shock pad is improved, an elastic cushion layer 4 is arranged on the top of the sound insulation layer 3, an upper base layer 5 is arranged on the top of the elastic cushion layer 4, side buffer cavities 6 between the lower base, compressed air is filled in the side buffer cavities 6, the middle part of the inner cavity of the buffer layer 2 is provided with a middle buffer cavity 8 positioned between the two side buffer cavities 6, the bottom between the middle buffer cavity 8 and the side buffer cavities 6 is provided with an air outlet 7 communicated with the middle buffer cavity and the side buffer cavities 6, two sides of the bottom of the inner cavity of the middle buffer cavity 8 are fixedly connected with guide rods 9, the guide rods 9 are utilized to support, guide and limit the movement of a magnetic piston 10, so that the stability of the magnetic piston 10 during lifting is ensured, the bottom between the two guide rods 9 is movably sleeved with the magnetic piston 10, the magnetism of the magnetic piston 10 is the same as that of a magnet 12, the magnetic piston 10 is matched with the middle buffer cavity 8 in size and movably sleeved inside the middle buffer cavity 8, the tops of the two guide rods 9 are movably sleeved with first springs 11, the tops of the first springs 11 are fixedly connected with the bottoms of the magnets 12, and the bottoms of the first springs 11 are fixedly connected, the top of the inner cavity of the middle buffer cavity 8 is fixedly connected with a magnet 12, when the shock pad is stressed, the movable rod 13 is pressed downwards to drive a piston plate 15 to compress the air in the side buffer cavity 6, so that the air in the side buffer cavity 6 is compressed into the middle buffer cavity 8 through an air outlet 7, when the middle buffer cavity 8 is filled with compressed air, the compressed air extrudes the magnetic piston 10 to drive the magnetic piston 10 to move upwards and compress a first spring 11, when the magnetic piston 10 is close to the magnet 12, the magnet 12 and the magnetic piston 10 repel each other to apply downward counter impact force to the magnetic piston 10, the downward counter impact force is offset with the impact force, the damage of the impact force to the shock pad and an object can be reduced, and a better protection effect is achieved, the top of the guide rod 9 is fixedly sleeved with the magnet 12, the bottom of the upper base layer 5 is fixedly connected with the movable rod 13, the top of the movable rod 13, the top of second spring 14 and the bottom fixed connection of last basic unit 5, and the bottom of second spring 14 and the top fixed connection of puigging 3, when the shock pad atress, last basic unit 5 compression elastic cushion layer 4 and second spring 14, thereby utilize elastic cushion layer 4 and second spring 14 to consume and absorb the shock pad impact force that receives, realize once buffering shock attenuation, movable rod 13 runs through elastic cushion layer 4, puigging 3, and extend to in buffer layer 2's the side cushion chamber 6, and the bottom fixedly connected with of movable rod 13 is located the inside piston plate 15 of side cushion chamber 6, piston plate 15 and the big or small looks adaptation and the activity suit in side cushion chamber 6 are in the inside of side cushion chamber 6, movable rod 13 cup joints with the activity of puigging 3.

The working principle is as follows: firstly, when the upper base layer 5 is stressed, the upper base layer 5 compresses the elastic cushion layer 4 and the second spring 14, thereby driving the movable rod 13 to press down while consuming and absorbing the received impact force, then the pressed movable rod 13 drives the piston plate 15 to compress the air inside the side buffer chamber 6, thereby compressing the air inside the side buffer chamber 6 into the middle buffer chamber 8 through the air outlet 7, when the middle buffer chamber 8 is filled with the compressed air, the compressed air extrudes the magnetic piston 10, thereby driving the magnetic piston 10 to move upwards and compress the first spring 11, when the magnetic piston 10 is close to the magnet 12, the magnet 12 and the magnetic piston 10 repel each other, thereby applying a downward counter impact force to the magnetic piston 10, and offsetting each other with the impact force, finally, in the using process of the shock absorption pad, the strength of the shock absorption pad is ensured by the reinforcing support 301 inside the sound insulation layer 3, and the sound absorption sound insulation layer 3 and the cotton 303 filled in the cavity 302, and absorbing the noise generated by vibration of the shock pad and the object in the using process.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed railway shock pad, includes lower basic unit (1), its characterized in that: the top of the lower base layer (1) is provided with a buffer layer (2), the top of the buffer layer (2) is provided with a sound insulation layer (3), the top of the sound insulation layer (3) is provided with an elastic cushion layer (4), the top of the elastic cushion layer (4) is provided with an upper base layer (5), two sides of the inner cavity of the buffer layer (2) are provided with lateral buffer cavities (6) positioned between the lower base layer (1) and the sound insulation layer (3), the middle part of the inner cavity of the buffer layer (2) is provided with a middle buffer cavity (8) positioned between the two lateral buffer cavities (6), the bottom between the middle buffer cavity (8) and the lateral buffer cavities (6) is provided with a gas outlet (7) communicated with the middle buffer cavity (8) and the lateral buffer cavities, two sides of the inner cavity bottom of the middle buffer cavity (8) are fixedly connected with guide rods (9), the bottom between the two guide rods (9) is movably sleeved with a magnetic piston (10), well cushion chamber (8) inner chamber's top fixedly connected with magnet (12), the top and the fixed cup joint of magnet (12) of guide bar (9), the bottom fixedly connected with movable rod (13) of upper substrate (5), the top movable sleeve of movable rod (13) is equipped with second spring (14), elastic cushion layer (4), puigging (3) are run through in movable rod (13) to extend to side cushion chamber (6) of buffer layer (2), and the bottom fixedly connected with of movable rod (13) is located inside piston plate (15) of side cushion chamber (6), movable rod (13) cup joint with puigging (3) activity.

2. The high speed railway shock pad of claim 1, wherein: the inside of puigging (3) is equipped with reinforcing support piece (301) of fixed suit between its inner chamber top and bottom, and the inside of puigging (3) has seted up cavity (302), cavity (302) intussuseption is filled with and inhales sound cotton (303).

3. The high speed railway shock pad of claim 1, wherein: the side buffer cavity (6) is filled with compressed air.

4. The high speed railway shock pad of claim 1, wherein: the top of the first spring (11) is fixedly connected with the bottom of the magnet (12), and the bottom of the first spring (11) is fixedly connected with the top of the magnetic piston (10).

5. The high speed railway shock pad of claim 1, wherein: the magnetism of the magnetic piston (10) is the same as that of the magnet (12), and the magnetic piston (10) is matched with the middle buffer cavity (8) in size and movably sleeved inside the middle buffer cavity (8).

6. The high speed railway shock pad of claim 1, wherein: the top of the second spring (14) is fixedly connected with the bottom of the upper base layer (5), and the bottom of the second spring (14) is fixedly connected with the top of the sound insulation layer (3).

7. The high speed railway shock pad of claim 1, wherein: the piston plate (15) is matched with the side buffer cavity (6) in size and movably sleeved in the side buffer cavity (6).