CN214271502U

CN214271502U - Sound-absorbing noise-reducing railway concrete sleeper

Info

Publication number: CN214271502U
Application number: CN202023138831.5U
Authority: CN
Inventors: 邹永吉; 李卓英; 赵燕
Original assignee: Weihai Ruihe Railway Sleeper Co ltd
Current assignee: Weihai Ruihe Railway Sleeper Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-09-24
Anticipated expiration: 2030-12-22

Abstract

The application relates to a sound-absorbing and noise-reducing railway concrete sleeper, which belongs to the technical field of concrete sleeper manufacturing and comprises a sleeper body; bearing grooves are formed in the two sides of the upper end face of the sleeper body; elastic pads are fixedly arranged on two opposite side surfaces of the sleeper body; sound-absorbing cotton is fixedly arranged in the elastic pad; a first sound absorption plate is fixedly arranged on the lower end face of the sleeper body; and the first sound absorption plate is internally provided with a wave-shaped sound absorption hole. This application has the effect that improves the noise reduction nature of sleeper.

Description

Sound-absorbing noise-reducing railway concrete sleeper

Technical Field

The application relates to the field of concrete sleeper manufacturing technology, in particular to a sound-absorbing and noise-reducing railway concrete sleeper.

Background

At present, sleepers, also called sleepers, are objects used for fixing steel rails. The concrete sleeper can save a large amount of high-quality steel, has long service life and good track stability, and can meet the requirements of high speed and large transportation capacity.

In the related art, reference may be made to a utility model patent with an authorization publication number of CN207091837UY, which discloses a sleeper, including a sleeper body, first fixing plates embedded at both ends of the sleeper body, a supporting plate fixed on each first fixing plate, the supporting plate bent at an obtuse angle and bent outward; vertical plates are respectively protruded downwards at two ends of the lower end surface of the sleeper body. This sleeper can play certain limiting action to the sleeper displacement change through riser, backup pad and the confrontation board of setting on the sleeper body, has guaranteed the safety in utilization of sleeper.

In view of the above-mentioned related technologies, the applicant finds that the sleeper lacks a certain sound absorption structure, and the railway track usually generates noise due to unevenness of the track and other reasons during operation, and most of the noise is transmitted to the surrounding environment, and when the noise reaches a certain decibel, the sleeper affects the daily life of residents around the railway.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of unable noise absorption in the sleeper use, this application provides one kind and inhales sound and fall type of making an uproar railway concrete sleeper

The application provides a inhale sound and fall type of making an uproar railway concrete sleeper adopts following technical scheme:

a sound-absorbing noise-reducing railway concrete sleeper comprises a sleeper body; bearing grooves are formed in the two sides of the upper end face of the sleeper body; elastic pads are fixedly arranged on two opposite side surfaces of the sleeper body; sound-absorbing cotton is fixedly arranged in the elastic pad; a first sound absorption plate is fixedly arranged on the lower end face of the sleeper body; and the first sound absorption plate is internally provided with a wave-shaped sound absorption hole.

Through adopting above-mentioned technical scheme, install the sleeper on ground during the use, install the rail in the accepting the groove simultaneously. The train can produce the noise when traveling on the rail, and the noise is to the inside transmission of sleeper body this moment, and partly noise is in transversely transmitting to the cushion along the sleeper body, is absorbed by the cotton of inhaling of sound in the cushion. In addition, a part of sound is transmitted along the longitudinal direction of the sleeper body, after the noise is transmitted into the first sound absorption plate, the noise is continuously transmitted to the direction close to the ground along the hole wall of the wavy sound absorption hole and is continuously collided by the hole wall of the wavy sound absorption hole, sound energy is gradually converted into heat energy, and the technical effects of sound absorption and noise reduction are achieved.

Optionally, a second sound-absorbing plate is fixedly arranged on the lower end face of the first sound-absorbing plate; a plurality of silencing cavities are formed in the second sound-absorbing plate; the wave-shaped sound absorption holes are arranged in a plurality of equal intervals along the length direction of the first sound absorption plate; the sound attenuation cavity and the wave-shaped sound absorption hole are arranged in a staggered mode; and a sound absorption ball is fixedly arranged in the sound absorption cavity.

Through adopting above-mentioned technical scheme, after in the noise transmission first abatvoix, have partial sound to pass in can following the space between two adjacent wave sound absorption holes, this part sound can enter into the second abatvoix thereupon to move to the amortization intracavity, can drive the sound ball of inhaling under the impact of noise this moment and make a round trip to rock, inhale on the sound ball rocks the time can reflect the noise to amortization intracavity wall, make the noise constantly at the amortization chamber and inhale the round trip movement between the sound ball, play the technological effect of amortization.

Optionally, a notch is formed in the lower end face of the second sound-absorbing plate; the notches are arranged in a plurality of and are distributed on the lower surface of the second sound-absorbing plate at equal intervals.

Through adopting above-mentioned technical scheme, the setting up of breach makes between second abatvoix and the ground incomplete contact, because the noise is fast in the propagation velocity ratio gas of solid, so the breach can carry out the separation to the noise, also plays certain noise reduction effect.

Optionally, vertical plates are vertically and fixedly arranged on two sides of the lower end face of the sleeper body; the first sound-absorbing plate and the second sound-absorbing plate are arranged between the two vertical plates; the height of the vertical plate is larger than the sum of the thicknesses of the first sound-absorbing plate and the second sound-absorbing plate.

Through adopting above-mentioned technical scheme, after the sleeper is installed on ground, the riser can insert ground inside, improves the joint strength between sleeper and the ground, makes more firm of sleeper installation.

Optionally, a connecting block is fixedly arranged on the upper end face of the first sound-absorbing plate; the lower end face of the sleeper body is provided with a connecting groove clamped with the connecting block.

Through adopting above-mentioned technical scheme, when first abatvoix was installed at sleeper lower terminal surface, can with the connecting block joint in the spread groove, had the technological effect who improves joint strength between first abatvoix and the sleeper body.

Optionally, connecting sleeves are fixedly arranged on two opposite side surfaces of the sleeper body; a fastener is inserted into the elastic cushion; the fastener passes through the elastic pad and the end part of the fastener is in threaded connection in the connecting sleeve.

Through adopting above-mentioned technical scheme, when the cushion was installed on the side of sleeper body, establish the cushion in inserting the fastener to make its tip threaded connection in the connecting sleeve, can be with firm the connection of cushion on the sleeper side.

Optionally, a rubber pad is fixedly arranged in the bearing groove; the upper surface of the rubber pad is fixedly provided with an anti-skid bulge.

Through adopting above-mentioned technical scheme, the rubber pad pressurized produces deformation and can cushion the vibration impact to rail and sleeper body among the train driving process. The friction between the steel rail and the sleeper body can be increased due to the arrangement of the anti-skidding protrusions, and the sleeper body is prevented from moving.

Optionally, the lateral surface of the sleeper body is fixedly provided with an elastic folded plate; the elastic pair folding plate penetrates through the elastic pad and obliquely extends in a direction away from the elastic pad; the two elastic couple folded plates are symmetrically arranged and are respectively positioned between two adjacent sleeper bodies; the end parts of the two elastic folded plates are connected with each other and form a certain included angle therebetween.

Through adopting above-mentioned technical scheme, elasticity can be integrative with two adjacent sleeper body couplings to the setting up of folded plate, prevents that the sleeper body long-term pressurized from leading to taking place to remove subaerially.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when in use, the sleeper is arranged on the ground, and the steel rail is arranged in the bearing groove. The train can produce the noise when traveling on the rail, and the noise is to the inside transmission of sleeper body this moment, and partly noise is in transversely transmitting to the cushion along the sleeper body, is absorbed by the cotton of inhaling of sound in the cushion. The other part of sound is transmitted along the longitudinal direction of the sleeper body, when the noise is transmitted into the first sound absorption plate, the noise is continuously transmitted to the direction close to the ground along the hole wall of the wavy sound absorption hole and is continuously collided by the hole wall of the wavy sound absorption hole, the sound energy is gradually converted into heat energy, and the technical effects of sound absorption and noise reduction are achieved;

2. after in the noise transmits first abatvoix, have partial sound to pass in can following the space between two adjacent wave sound absorption holes, this part sound can enter into the second abatvoix thereupon to move to the amortization intracavity, can drive the sound absorption ball and make a round trip to rock under the impact of noise this moment, can reflect the noise to amortization intracavity wall when inhaling the sound ball and rock on, make the noise constantly at the amortization chamber and inhale the round trip movement between the sound ball, play the technological effect of amortization.

Drawings

Fig. 1 is a schematic view showing the overall structure of a sound-absorbing and noise-reducing railroad concrete sleeper according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a tie in an embodiment of the present application;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a sleeper body; 11. a receiving groove; 12. connecting grooves; 2. a vertical plate; 3. an elastic folded plate; 4. a rubber pad; 41. anti-skid projections; 5. an elastic pad; 6. sound-absorbing cotton; 7. connecting sleeves; 8. a fastener; 9. a first sound-absorbing panel; 91. a sound absorption hole; 92. connecting blocks; 10. a second sound-absorbing panel; 101. a sound-deadening chamber; 102. a sound absorbing ball; 103. and (4) a notch.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses inhale sound and fall type of making an uproar railway concrete sleeper. Referring to fig. 1, the concrete sleeper includes a sleeper body 1, and receiving grooves 11 for installing rails are provided on both sides of an upper end surface of the sleeper body 1. Vertical plates 2 are vertically and fixedly arranged on two sides of the lower end face of the sleeper body 1. When the sleeper body 1 is used, the sleeper body 1 is placed on the ground, the vertical plate 2 is inserted into the ground, and then the rail is installed in the receiving groove 11.

Referring to fig. 1, in order to improve sleeper body 1's installation stability, set firmly elasticity to folded plate 3 on sleeper body 1 side, elasticity is provided with two to folded plate 3 symmetry, and two elasticity set up and tip interconnect together to folded plate 3 equal slopes to another elasticity to folded plate 3 fixed connection on adjacent sleeper body 1. The elastic pulling of the folded plate 3 on two adjacent sleeper bodies 1 prevents the sleeper bodies 1 from displacement caused by long-term extrusion from the rail.

Referring to fig. 2 and 3, the sleeper body 1 may receive a load from a rail when in use, and in order to prevent the sleeper body 1 from being damaged due to excessive pressure, a rubber pad 4 is glued in the receiving groove 11, and the deformation generated by the rubber pad 4 is used for buffering the pressure, so that the sleeper body 1 can be protected.

Referring to fig. 2 and fig. 3, in order to prevent the relative displacement between the rail and the receiving groove 11, a plurality of anti-slip protrusions 41 for increasing the friction force between the rail and the rubber pad 4 are fixed on the upper surface of the rubber pad 4.

Referring to fig. 2 and 3, the train can produce certain noise when traveling on the rail, and in order to prevent the noise from transmitting to the air and influencing the rest of the surrounding residents, the two opposite sides of the sleeper body 1 are respectively glued with an elastic pad 5, and the elastic pads 5 are internally and fixedly provided with sound-absorbing cotton 6 for absorbing the noise.

Referring to fig. 3, in order to improve the connection strength between the elastic pad 5 and the sleeper body 1, a connecting sleeve 7 is fixedly arranged in the sleeper body 1, a fastening piece 8 is inserted on the elastic pad 5, the fastening piece 8 penetrates through the elastic pad 5, and the end part of the fastening piece is in threaded connection with the connecting sleeve 7. The elastic pad 5 can be tightly connected to the side surface of the sleeper body 1 by the action of the fastening member 8 and the connecting sleeve 7.

Referring to fig. 2 and 3, in order to prevent sound from being transmitted to the ground along the sleeper body 1, a first sound-absorbing plate 9 is fixedly arranged between two vertical plates 2 on the lower end surface of the sleeper body 1, and a plurality of wavy sound-absorbing holes 91 are formed in the first sound-absorbing plate 9 at equal intervals along the length direction of the first sound-absorbing plate 9. The sound-absorbing holes 91 extend in the height direction of the first sound-absorbing plate 9 and penetrate the upper and lower surfaces of the first sound-absorbing plate 9.

Referring to fig. 2 and 3, when sound enters the first sound absorbing plate 9 through the sleeper body 1, the sound continuously moves in the sound absorbing holes 91 and is continuously collided with the hole walls of the sound absorbing holes 91, so that the sound energy gradually disappears.

Referring to fig. 2 and 3, after noise enters the first sound absorbing plate, a part of the noise may pass through the interval between two adjacent sound absorbing holes 91, in order to better absorb the noise, a second sound absorbing plate 10 is fixedly arranged on the lower end surface of the first sound absorbing plate 9, a sound absorbing cavity 101 staggered with the sound absorbing holes 91 is formed in the second sound absorbing plate 10, and sound absorbing balls 102 are fixedly arranged in the sound absorbing cavity 101.

Referring to fig. 2 and 3, after the noise is transmitted into the sound-deadening chamber 101, the sound-absorbing ball 102 is driven to vibrate, so that the noise is transmitted to the inner wall of the sound-deadening chamber 101 and reciprocates in the sound-deadening chamber 101 until disappearing. In order not to hinder the installation of the sleeper body 1, the sum of the heights of the first and second sound-absorbing panels 9, 10 is less than the height of the riser 2.

Referring to fig. 2 and 3, a plurality of gaps 103 are formed on the lower surface of the second sound-absorbing plate 10 at equal intervals, and after the sleeper body 1 is installed on the ground, a gap is left between the second sound-absorbing plate 10 and the ground, so that a cavity filled with air is formed in each gap 103, the propagation speed of noise is reduced, and a certain noise reduction effect is achieved.

Referring to fig. 2 and 3, in order to improve the connection strength between the first connection plate and the sleeper body 1, a plurality of connection blocks 92 are fixedly arranged on the upper surface of the first sound absorption plate 9, and a connection groove 12 clamped with the connection blocks 92 is formed in the lower end surface of the sleeper body 1.

The implementation principle of the sound-absorbing and noise-reducing railway concrete sleeper in the embodiment of the application is as follows: first, the elastic pad 5 is fixed to the side of the sleeper body 1 by passing the fastener 8 through the elastic pad 5 and screwing the end portion thereof into the connecting sleeve 7. Then, the sleeper body 1 is placed on the ground with the riser 2 inserted inside the ground. Finally, part of the noise generated when the train runs is transmitted into the elastic pad 5 and is absorbed by the sound absorption cotton 6; the other part is transmitted into the first sound-absorbing plate 9 and is continuously hit by the sound-absorbing holes 91, and a part of the sound enters the sound-deadening chamber 101 and is continuously bounced by the inner wall of the sound-deadening chamber 101 until it disappears.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sound-absorbing and noise-reducing railway concrete sleeper comprises a sleeper body (1); the method is characterized in that: bearing grooves (11) are formed in the two sides of the upper end face of the sleeper body (1); elastic pads (5) are fixedly arranged on two opposite side surfaces of the sleeper body (1); sound-absorbing cotton (6) is fixedly arranged in the elastic pad (5); a first sound absorption plate (9) is fixedly arranged on the lower end face of the sleeper body (1); and a wave-shaped sound absorption hole (91) is formed in the first sound absorption plate (9).

2. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 1, characterized in that: a second sound-absorbing plate (10) is fixedly arranged on the lower end face of the first sound-absorbing plate (9); a plurality of silencing cavities (101) are formed in the second sound-absorbing plate (10); the wave-shaped sound absorption holes (91) are arranged in a plurality and are distributed at equal intervals along the length direction of the first sound absorption plate (9); the sound attenuation cavities (101) and the wave-shaped sound absorption holes (91) are arranged in a staggered mode; a sound absorption ball (102) is fixedly arranged in the sound attenuation cavity (101).

3. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 2, characterized in that: a notch (103) is formed in the lower end face of the second sound-absorbing board (10); the notches (103) are arranged in a plurality of equal intervals and distributed on the lower surface of the second sound-absorbing board (10).

4. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 2, characterized in that: vertical plates (2) are vertically and fixedly arranged on two sides of the lower end face of the sleeper body (1); the first sound-absorbing plate (9) and the second sound-absorbing plate (10) are arranged between the two vertical plates (2); the height of the vertical plate (2) is larger than the sum of the thicknesses of the first sound-absorbing plate (9) and the second sound-absorbing plate (10).

5. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 1, characterized in that: a connecting block (92) is fixedly arranged on the upper end face of the first sound-absorbing plate (9); the lower end face of the sleeper body (1) is provided with a connecting groove (12) which is clamped with the connecting block (92).

6. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 1, characterized in that: connecting sleeves (7) are fixedly arranged on two opposite side surfaces of the sleeper body (1); a fastener (8) is inserted on the elastic cushion (5); the fastener (8) penetrates through the elastic cushion (5) and the end part of the fastener is in threaded connection with the connecting sleeve (7).

7. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 1, characterized in that: a rubber pad (4) is fixedly arranged in the bearing groove (11); the upper surface of the rubber pad (4) is fixedly provided with an anti-skid bulge (41).

8. The sound-absorbing noise-reducing railroad concrete sleeper according to claim 1, characterized in that: the lateral surface of the sleeper body (1) is fixedly provided with an elastic folded plate (3); the elastic pair folding plate (3) penetrates through the elastic pad (5) and extends obliquely in a direction away from the elastic pad (5); the two elastic pair folded plates (3) are symmetrically arranged and are respectively positioned between two adjacent sleeper bodies (1); the end parts of the two elastic folded plates (3) are connected with each other and form a certain included angle therebetween.