阅读说明：本技术 一种铁路碎石床道填砂装置 (Sand filling device for railway gravel bed ) 是由 付士健 于 2021-10-11 设计创作，主要内容包括：本发明提供了一种铁路碎石床道填砂装置,属于铁路维护设备技术领域。填砂装置包括能够在两条铁轨之间移动的载砂车,载砂车包括车身、若干滚轮和砂箱,车身上设置有出砂机构和喷气式压砂机构,出砂机构包括设置在砂箱底部的出砂嘴和转动连接在出砂嘴内的转筒,转筒的外壁面具有若干储砂槽,喷气式压砂机构包括设置在车身上的气泵、固定在车身上的混压箱,混压箱的底部设置有若干若干喷气组件,喷气组件包括与混压箱固定相连的接管和铰接在接管下端的喷气管,接管与喷气管之间通过一软管相连通,喷气管的下端具有出气孔,喷气管能够绕铰接点向载砂车移动方向的反方向摆动,出砂嘴位于车身前端。本发明具有效率高等优点。(The invention provides a sand filling device for a railway gravel bed, and belongs to the technical field of railway maintenance equipment. The sand filling device comprises a sand-carrying vehicle capable of moving between two rails, the sand-carrying vehicle comprises a vehicle body, a plurality of rollers and a sand box, a sand outlet mechanism and a jet-propelled sand pressing mechanism are arranged on the vehicle body, the sand outlet mechanism comprises a sand outlet nozzle arranged at the bottom of the sand box and a rotary drum rotatably connected in the sand outlet nozzle, the outer wall surface of the rotary drum is provided with a plurality of sand storage grooves, the jet-propelled sand pressing mechanism comprises an air pump arranged on the vehicle body, a mixed pressure box fixed on the vehicle body, the bottom of the mixed pressure box is provided with a plurality of jet assemblies, each jet assembly comprises a connecting pipe fixedly connected with the mixed pressure box and a jet pipe hinged at the lower end of the connecting pipe, the connecting pipe and the jet pipe are communicated through a hose, the lower end of the jet pipe is provided with an air outlet hole, the jet pipe can swing around a hinge point in the opposite direction of the sand-carrying vehicle, and the sand outlet nozzle is positioned at the front end of the vehicle body. The invention has the advantages of high efficiency and the like.)

1. A sand filling device for a railway gravel bed is provided with two rails (11) which are arranged in parallel and a plurality of sleepers (12) for supporting the rails (11), and is characterized in that the sand filling device comprises a sand carrying vehicle which can move between the two rails (11), the sand carrying vehicle comprises a vehicle body (21), a plurality of rollers (22) and a sand box (23), a sand outlet mechanism and an air jet type sand pressing mechanism are arranged on the vehicle body (21), the sand outlet mechanism comprises a sand outlet nozzle (24) arranged at the bottom of the sand box (23) and a rotary drum (25) rotatably connected in the sand outlet nozzle (24), the outer wall surface of the rotary drum (25) is provided with a plurality of sand storage grooves (26), the air jet type sand pressing mechanism comprises an air pump (31) arranged on the vehicle body (21) and a mixed pressing box (32) fixed on the vehicle body (21), and a plurality of air jet assemblies are arranged at the bottom of the mixed pressing box (32), the air injection assembly comprises a connecting pipe (33) fixedly connected with the mixed pressure box (32) and an air injection pipe (34) hinged to the lower end of the connecting pipe (33), the connecting pipe (33) is communicated with the air injection pipe (34) through a hose, an air outlet hole (35) is formed in the lower end of the air injection pipe (34), the air injection pipe (34) can swing around a hinged point in the direction opposite to the moving direction of the sand-carrying vehicle, and the sand outlet nozzle (24) is located at the front end of the vehicle body (21).

2. A gravel bed sand-filling device of a railway according to claim 1, characterized in that a torsion spring is arranged between the connecting pipe (33) and the gas ejector pipe (34) to drive the connecting pipe (33) and the gas ejector pipe (34) to be coaxial.

3. A railroad gravel bed sand-packing device according to claim 2, wherein the lower end of the air injection pipe (34) has a flat insert plate (36), the air outlet holes (35) are located at the bottom of the insert plate (36), and the insert plate (36) is vertical to the ground.

4. A railroad gravel bed sand pack apparatus as claimed in claim 1, 2 or 3, wherein the drum (25) is perpendicular to the rail (11), and the power for the rotation of the drum (25) is from one of the rollers (22).

5. A railroad gravel bed sand-packing device according to claim 1, 2 or 3, wherein the longitudinal position of the mixing tank (32) on the vehicle body (21) is adjustable.

6. A railroad gravel bed sand-packing device according to claim 1, 2 or 3, wherein the air-jet units are arranged in a matrix on the mixing box (32).

7. A device for gravel bed packing of the railway of claim 1, 2 or 3, wherein the sand truck is pulled by a power mechanism running on the rails (11).

8. A railroad gravel bed sand-packing device according to claim 1, 2 or 3, wherein the sand-carrying vehicle is provided with a power source for rotating the rollers (22).

Technical Field

The invention belongs to the technical field of railway maintenance equipment, and relates to a sand filling device for a railway gravel bed.

Background

The rail of the rail transit is supported by the sleeper, the bed below the sleeper is a gravel bed which can play a role of buffering the train, so that the bearing capacity and impact force of the train are relatively uniformly transmitted to the roadbed below the bed, the gravel bed can also effectively deal with small-amplitude deformation of the sleeper and the rail, such as thermal expansion and cold contraction deformation, and the gravel bed can also effectively drain rail facilities above a road base, the gravel bed is formed by paving large-particle-diameter stones and small-particle-diameter stones on the roadbed, and along with rain wash and vibration of the train on the rail, small-particle-diameter gravel continuously sinks to the bottom and even flows out from two sides of the bed, the gravel bed needs to be regularly filled with sand, the existing mode is generally that the sand is directly scattered between two rails, and the sand and the large-particle-diameter stones are uniformly mixed by using vibration caused by the train running on the rail, this kind of mode can cause the small-size grit to run off before sinking between the big particle size stone, mainly is that there is great air current in the train operation process, causes splashing of small-size grit easily, causes the potential safety hazard to the track both sides simultaneously.

Therefore, a sand-packing device with low labor intensity, high efficiency and good sand-packing effect is needed.

Disclosure of Invention

The invention aims to provide a sand filling device for a railway gravel bed aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to reduce the sand filling labor intensity and improve the efficiency.

The purpose of the invention can be realized by the following technical scheme: a railway gravel bed sand filling device is characterized in that the sand filling device comprises a sand carrying vehicle capable of moving between the two rails, the sand carrying vehicle comprises a vehicle body, a plurality of rollers and a sand box, a sand outlet mechanism and an air jet type sand pressing mechanism are arranged on the vehicle body, the sand outlet mechanism comprises a sand outlet nozzle arranged at the bottom of the sand box and a rotary drum rotatably connected in the sand outlet nozzle, the outer wall surface of the rotary drum is provided with a plurality of sand storage grooves, the air jet type sand pressing mechanism comprises an air pump arranged on the vehicle body and a mixing pressure box fixed on the vehicle body, the bottom of the mixing pressure box is provided with a plurality of air jet assemblies, each air jet assembly comprises a connecting pipe fixedly connected with the mixing pressure box and an air jet pipe hinged at the lower end of the connecting pipe, and the connecting pipe is communicated with the air jet pipe through a hose, the lower end of the air ejector pipe is provided with an air outlet, the air ejector pipe can swing around a hinged point to the direction opposite to the moving direction of the sand-carrying vehicle, and the sand outlet nozzle is positioned at the front end of the vehicle body.

Furthermore, a torsion spring for driving the connecting pipe to be coaxial with the gas ejector pipe is arranged between the connecting pipe and the gas ejector pipe.

Furthermore, the lower end of the gas ejector pipe is provided with a flat inserting disc, the gas outlet hole is located at the bottom of the inserting disc, and the inserting disc is vertical to the ground.

Further, the rotating drum is perpendicular to the rail, and the rotating drum rotates by power from one of the rollers.

Further, the longitudinal position of the mixing box on the vehicle body is adjustable.

Furthermore, each air injection assembly is distributed on the mixing and pressing box in a matrix manner.

Furthermore, the sand carrying vehicle is pulled by a power mechanism running on a rail.

Furthermore, a power source for driving the rollers to rotate is arranged on the sand carrier.

In the process that the sand carrying vehicle automatically walks or is dragged to walk on the rails, the rotary drum rotates to enable small-particle-size sand in the sand box to be uniformly scattered on a bed between the two rails, and each air injection assembly carries out high-pressure filling on the small-particle-size sand on the bed, so that the small-particle-size sand can sink below the surface layer of the bed and be distributed in gaps between large particle sizes.

The connecting pipe is hinged with the air injection pipe, and the torsion spring drives the air injection pipe to be in a longitudinal state, so that the inserting plate positioned at the lower end of the air injection pipe can have a pressing force on the bed prop, and further can be inserted into a gap of the stone, so that the air injection airflow acts below the surface layer of the bed, not only can the small-particle-size gravel be reduced, but also the small-particle-size gravel can be relatively uniformly existed between the large-particle-size stones under the action of strong airflow and under the flow guide effect of the stone.

The air injection assemblies distributed in the matrix can enable the inserting disc to inject air gradually on the bed channel to fill sand, namely the inserting depth of the inserting disc on the bed channel, which is closer to the rear part of the vehicle body, is deeper, so that small gravels sink step by step and are distributed more uniformly.

But the sleeper is dodged to articulated takeover and jet-propelled pipe self-adaptation each other, also drags the smooth stone that makes on the bed way and is lain about because of the jet-propelled pipe on the bed way between two rails and is lain about flatly, and the jet-propelled effect and the effect of lying about flatly of jet-propelled pipe can also make the gravel that probably exists on the sleeper push away to between the adjacent sleeper.

What is more important is that the traditional sand filling mode can not fill fine sand below the sleepers, the sleepers directly support the rails, the space below the sleepers is sunken or only supported by large stones, the theoretical effect of a gravel bed can be seriously influenced, especially, the buffer effect and the noise reduction effect of impact force caused by the movement of a train can be greatly reduced.

Drawings

Fig. 1 is a schematic structural view of the sand-packing device.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a schematic structural view of the gravel bed.

Fig. 4 is a schematic structural view of the air injection assembly.

In the figure, 11, rails; 12. crossties; 21. a vehicle body; 22. a roller; 23. a sand box; 24. a sand outlet nozzle; 25. a rotating drum; 26. a sand storage tank; 31. an air pump; 32. a mixing and pressing box; 33. taking over a pipe; 34. a gas ejector tube; 35. an air outlet; 36. and (5) inserting a disc.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the railway gravel bed is provided with two parallel rails 11 and a plurality of sleepers 12 for supporting the rails 11, the sand filling device comprises a sand carrier capable of moving between the two rails 11, the sand carrier comprises a body 21, a plurality of rollers 22 and a sand box 23, a sand outlet mechanism and an air jet type sand pressing mechanism are arranged on the body 21, the sand outlet mechanism comprises a sand outlet 24 arranged at the bottom of the sand box 23 and a rotary drum 25 rotatably connected in the sand outlet 24, the outer wall surface of the rotary drum 25 is provided with a plurality of sand storage grooves 26, the air jet type sand pressing mechanism comprises an air pump 31 arranged on the body 21 and a mixing and pressing box 32 fixed on the body 21, the bottom of the mixing and pressing box 32 is provided with a plurality of air jet assemblies, each air jet assembly comprises a connecting pipe 33 fixedly connected with the mixing and pressing box 32 and an air jet pipe 34 hinged at the lower end of the connecting pipe 33, the connecting pipe 33 is communicated with the air jet pipe 34 through a hose, the lower end of the air ejector pipe 34 is provided with an air outlet hole 35, the air ejector pipe 34 can swing around a hinge point to the direction opposite to the moving direction of the sand carrier, and the sand outlet nozzle 24 is positioned at the front end of the vehicle body 21.

A torsion spring for driving the connecting pipe 33 and the gas injection pipe 34 to be coaxial is arranged between the connecting pipe 33 and the gas injection pipe 34.

The lower end of the gas nozzle 34 is provided with a flat plug 36, the gas outlet 35 is positioned at the bottom of the plug 36, and the plug 36 is vertical to the ground.

The drum 25 is perpendicular to the rail 11 and the power for rotating the drum 25 is from one of the rollers 22. The longitudinal position of the mixing tank 32 on the vehicle body 21 is adjustable. The air injection components are distributed on the mixed pressure box 32 in a matrix, namely, a plurality of air injection components parallel to the rails are positioned on the same straight line, and a plurality of air injection components in the direction vertical to the rails are arranged alternately, so that the air injection components are uniformly distributed on the gravel bed between the two rails, and the moving tracks of the rear inserting disc and the front inserting disc coincide.

The sand carrier is drawn by a power mechanism running on the rail 11 and can also be driven by a power source arranged on the sand carrier.

In the process of self-walking or traction walking of the sand carrier on the rails 11, the rotary drum 25 rotates to enable small-particle-size sand in the sand box 23 to be uniformly scattered on a bed between two rails 11, and each air injection assembly performs high-pressure filling on the small-particle-size sand on the bed, so that the small-particle-size sand can sink below the surface layer of the bed and be distributed in gaps between large particles.

Because the connecting pipe 33 is hinged with the gas injection pipe 34 and the torsion spring drives the gas injection pipe 34 to be in a longitudinal state, the inserting disc 36 positioned at the lower end of the gas injection pipe 34 can have a compression force on the bed, and further can be inserted into the gap of the stone, so that the gas injection airflow acts below the surface layer of the bed, not only can the gravel with small particle size be reduced, but also the gravel with small particle size can be relatively uniformly existed between the stones with large particle size under the action of strong airflow and the diversion effect of the stone.

The air injection assemblies distributed in the matrix can enable the insert disc 36 to inject air gradually on the bed channel to fill sand, namely, the insert disc 36 closer to the rear of the vehicle body 21 is deeper in the bed channel insertion depth, so that small gravel can sink step by step and is distributed more uniformly.

Articulated takeover 33 and gas ejector 34 each other can be from the adaptation dodge sleeper 12, also because of gas ejector 34 drags on the bed between two rails 11 smooth and make the stone on the bed be lain flat, and the effect of gas-jet and gas ejector 34 lie flat the effect and can also make the gravel that probably exists on the sleeper 12 push to between the adjacent sleeper 12.

What is more important is that the traditional sand filling mode can not fill fine sand below the sleepers 12, the sleepers 12 directly support the rails 11, the space below the sleepers 12 is sunken or is only supported by large stones, the theoretical effect of a gravel bed can be seriously affected, and especially the buffer effect and the noise reduction effect on the impact force caused by the movement of a train can be greatly reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.