CN211809584U

CN211809584U - Anti-hardening sanding device for rail transit

Info

Publication number: CN211809584U
Application number: CN201922368870.5U
Authority: CN
Inventors: 林丹; 郭培军
Original assignee: Jining Changhang Technology Development Co ltd
Current assignee: Jining Changhang Technology Development Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-30
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a sand spreading device that hardens that prevents that track traffic is used, including sand box fixing base, gas circuit control structure, the inside sand channel that is provided with of sand box fixing base, the sand channel that goes out sets up to slope structure and goes out sand channel bottom plug-in connection and have the end cap, end cap one end fixedly connected with actuating lever, actuating lever sliding connection is inside the valve base member, the end cap lower extreme is provided with sand storage chamber, sand storage chamber one side is provided with gas circuit control structure. The utility model has the advantages of prevent that moisture direction from getting into the sand box and causing the grit to solidify and harden, its mainly used railway locomotive climbing or brake or need increase the adhesion between the wheel rail to increase coefficient of friction between rail and wheel.

Description

Anti-hardening sanding device for rail transit

Technical Field

The utility model relates to a supporting technical field of locomotive, specific prevent hardening sanding device that says so for track traffic.

Background

The sanding device for rail transit is a device for improving the adhesion coefficient between wheel rails so as to reduce the sliding risk of rail vehicles. At present, the sand boxes of the domestic sand spreading device are communicated with the atmosphere, moisture reversely enters the sand boxes through the sand spreading nozzles to increase the moisture in the sand boxes, condensate water is formed during the sudden temperature drop process, and solidification and hardening occur. Therefore, an important research direction of the sanding device is to prevent sand from hardening and improve the sanding efficiency.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a prevent that moisture direction from getting into the sand box and causing the grit to solidify the anti-hardening sanding device that hardens.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a hardening prevention sanding device for track traffic comprises a sand box fixing seat and an air path control structure, wherein a sanding channel is arranged in the sand box fixing seat, the sanding channel is of an inclined structure, the bottom of the sanding channel is connected with a plug in an inserting manner, one end of the plug is fixedly connected with a driving rod, the driving rod is connected in a valve base body in a sliding manner, a first cavity and a second cavity are arranged in the valve base body, a piston block is connected between the first cavity and the second cavity in a sliding manner, the piston block is fixedly connected to the driving rod, a driving spring is connected to the driving rod in the second cavity in a sleeved manner, one end of the driving spring is in abutting connection with the piston block, the other end of the driving spring is in abutting connection with the other end of the second cavity, the other end of the driving rod penetrates through the second cavity, the end cap lower extreme is provided with sand storage chamber, sand storage chamber one side is provided with the gas circuit control structure, gas circuit control structure fixed connection be in valve base body lower extreme, gas circuit control structure one side is provided with inlet channel, inlet channel is connected with first passageway, first passageway end sets up to little blast nozzle, little blast nozzle is just to sand storage chamber bottom one side, be connected with the second route on the first passageway, the second route end sets up to big blast nozzle, big blast nozzle is just to going out the sand pipe, still be connected with the third route on the first passageway, the third route end with first cavity is linked together.

Furthermore, a sand removing plug is arranged at the lower end of the sand storage chamber, and a sand discharging cover is covered on the outer side of the sand removing plug.

Furthermore, an air source transition joint is installed at an air inlet of the air inlet channel.

Furthermore, an air inlet regulating valve is fixedly mounted on the air source transition joint.

Furthermore, an air nozzle is arranged on an air inlet of the air inlet channel on one side of the air inlet quantity regulating valve.

Furthermore, the tail end of the sand outlet pipe is fixedly connected with a sand spreading pipe, and the sand spreading pipe is a flexible bent pipe.

Furthermore, a gasket is arranged at the joint between the sand outlet pipe and the sand spreading pipe.

The utility model has the advantages that: the leaked sand can be stored through the arranged sand storage chamber, the influence of the sealing property of the sand box is avoided, and the sand blocking is not easy to occur; through the sand removing plug additionally arranged and the sand discharging cover covered on the sand removing plug, the accumulated sundries in the sand storage chamber can be removed without removing the sand removing device, and the maintenance and stay time of the locomotive is shortened; the device seals the sand outlet channel through the plug, so that moisture is effectively prevented from reversely entering the sand box, and hardening of the sand is effectively reduced; the opening size of the sand outlet channel can be adjusted according to the quality of the sand, and the opening size of each passage valve can be adjusted to adapt to different sand conditions.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the valve base according to the present invention;

fig. 3 is a schematic view of the connection of the gas circuit control structure of the present invention.

In the figure: the sand box comprises a sand box fixing seat 1, a gas path control structure 2, a sand outlet channel 3, a plug 4, a driving rod 5, a valve base 6, a first cavity 7, a second cavity 8, a piston block 9, a driving spring 10, a pull ring 11, a sand storage chamber 12, a sand box 13, a first passage 14, a small air nozzle 15, a second passage 16, a large air nozzle 17, a sand outlet pipe 18, a third passage 19, a sand clearing plug 20, a sand discharging cover 21, an air source transition joint 22, an air inlet regulating valve 23, an air nozzle 24 and a sand sprinkling pipe 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an anti-hardening sanding device for rail transit comprises a sand box fixing seat 1 and a gas circuit control structure 2, wherein a sanding channel 3 is arranged in the sand box fixing seat 1, the sanding channel 3 is arranged in an inclined structure, a plug 4 is inserted and connected to the bottom of the sanding channel 3, one end of the plug 4 is fixedly connected with a driving rod 5, the driving rod 5 is slidably connected to the inside of a valve base body 6, a first cavity 7 and a second cavity 8 are arranged in the valve base body 6, a piston block 9 is slidably connected between the first cavity 7 and the second cavity 8, the piston block 9 is fixedly connected to the driving rod 5, a driving spring 10 is connected to the driving rod 5 in the second cavity 8 in a sleeved mode, one end of the driving spring 10 is connected to the piston block 9 in an abutting mode, the other end of the driving spring 10 is connected to the other end of the second cavity 8 in an abutting mode, the, the lower extreme of end cap 4 is provided with sand storage chamber 12, sand storage chamber 12 one side is provided with gas

circuit control structure

2, 2 fixed connection of gas circuit control structure are at 6 lower extremes of valve base member, 2 one sides of gas circuit control structure are provided with inlet channel, inlet channel is connected with

first passageway

14, 14 end settings are for little blast nozzle 15 in first passageway, little blast nozzle 15 is just to sand storage chamber 12 bottom one side, be connected with second passageway 16 on the

first passageway

14, 16 end settings are for big blast nozzle 17 in the second passageway, big blast nozzle 17 is just to going out sand pipe 18, still be connected with third passageway 19 on the

first passageway

14, 19 end and the first cavity 7 of third passageway are linked together.

The utility model discloses in, be equipped with sand cleaning stifled 20 in the lower part of sand storage chamber 12, sand cleaning stifled 20 is upper stamped and is put sand lid 21, is equipped with the internal thread in putting sand lid 21, and sand cleaning stifled 20 external screw threads match and connect, when needing to clear away the grit in the sand storage chamber 12, only need to turn round sand cleaning lid 21 and open, clear away the grit, convenient operation. An air source transition joint 22 is installed at an air inlet of the air spraying channel and is connected with a main air cylinder on the rolling stock through the air source transition joint 22, and the connection is firm. An air inlet quantity adjusting valve 23 is arranged on the air source transition joint 22. The air volume adjusting valve can adopt an adjusting nut or an adjusting bolt, and the air volume adjusting valve is fixedly arranged on the air source transition joint 22, so that the air volume adjusting valve is simple and convenient.

The air inlet channel on one side of the air inlet quantity adjusting valve 23 is provided with an air nozzle 24, the air nozzle 24 is arranged on the valve base body 6 through a screw, the pipe diameter of the air nozzle 24 is larger than the pipe diameter of the air inlet channel, an air source in the main air cylinder enters the air nozzle 24 through an air source transition joint 22, and enters the small air nozzle 15 and the large air nozzle 17 after being adjusted through the air nozzle 24 with a larger pipe diameter.

The joint of the sanding pipe 25 and the sand outlet pipe 18 is provided with a gasket, the gasket is positioned at the sand inlet of the sanding pipe 25, and an asbestos gasket is generally adopted to ensure that the joint has good sealing performance and does not leak sand. In the specific implementation mode, the sanding device is made of aluminum alloy, so that the structural strength is high, the sanding device is not easy to damage and deform, and the secondary replacement cost is saved. Generally, the sanding pipe 25 is a flexible elbow that is easily controlled to sand the rolling stock wheels and railroad tracks.

The pull ring 11 is located the protection casing for protect 5 afterbody on the actuating lever, pulling pull ring 11, can make end cap 4 open sand outlet channel 3, impel pull ring 11, can seal sand outlet channel 3, so that maintain, can show the stroke of opening at every turn through pull ring 11, be convenient for observe the switching condition of sanding in-process sand outlet channel 3.

The utility model discloses a theory of operation is: when in use, the air quantity regulating valve is regulated according to the required adhesive force between the rolling stock and the track, so that a proper large air source in the main air cylinder enters the air inlet channel through the air source transition joint 22 and the air nozzle 24, then enters the first passage 14 from the air inlet passage, the first passage 14 is provided with a third passage 19, the first passage 14 between the third passage 19 and the second passage 16 is provided with a vent valve, the vent valve is in a closed state at the moment, the tail end of the third passage 19 is connected with a first cavity 7, and a vent valve is also arranged at the joint, firstly, the third passage 19 is communicated with the first cavity 7, the piston block 9 is pushed to move by adjusting the air inflow, thereby leading the plug 4 to open the sand outlet channel 3, controlling the opening size of the sand outlet channel 3 by adjusting the air inflow, thereby controlling the amount of sand produced, and then closing the connection with the first cavity 7 and communicating the second passage 16; the sand in the sand box 13 flows into the sand storage chamber 12 from the sand outlet channel 3 by means of the self gravity, the air flow is blown to the sand storage chamber 12 through the small air nozzle 15 at the tail end of the first passage 14 to lift the sand in the sand storage chamber 12, one path of the lifted sand enters the sand outlet pipe 18, the other path of the lifted sand directly blows to the sand outlet pipe 18 through the large air nozzle 17 at the tail end of the second passage 16 to blow the lifted sand into the sand outlet pipe 25 from the sand outlet pipe 18, and the sand is sprayed between the wheels of the rolling stock and the railway track through the tail end of the sand outlet pipe 25, so that when the sand in the sand storage chamber 12 needs to be cleaned, the sand discharge cover 21 only needs to be unscrewed to clean the sand.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a sand scattering device that prevents hardening for track traffic, includes sand box fixing base (1), gas circuit control structure (2), its characterized in that: a sand outlet channel (3) is arranged in the sand box fixing seat (1), the sand outlet channel (3) is of an inclined structure, the bottom of the sand outlet channel (3) is connected with a plug (4) in an inserting manner, one end of the plug (4) is fixedly connected with a driving rod (5), the driving rod (5) is connected in a sliding manner in a valve base body (6), a first cavity (7) and a second cavity (8) are arranged in the valve base body (6), a piston block (9) is connected between the first cavity (7) and the second cavity (8) in a sliding manner, the piston block (9) is fixedly connected on the driving rod (5), a driving spring (10) is connected on the driving rod (5) in the second cavity (8) in a sleeved manner, one end of the driving spring (10) is connected with the piston block (9) in an abutting manner, and the other end of the driving spring (10) is connected with the other end of the second cavity, the other end of the driving rod (5) penetrates out of the second cavity (8), the tail end of the driving rod is fixedly connected with a pull ring (11), a sand storage chamber (12) is arranged at the lower end of the plug (4), the air path control structure (2) is arranged on one side of the sand storage chamber (12), the air path control structure (2) is fixedly connected to the lower end of the valve base body (6), an air inlet channel is arranged on one side of the air path control structure (2), the air inlet channel is connected with a first passage (14), the tail end of the first passage (14) is provided with a small air nozzle (15), the small air nozzle (15) is just opposite to one side of the bottom of the sand storage chamber (12), the first passage (14) is connected with a second passage (16), the tail end of the second passage (16) is provided with a large air nozzle (17), the large air nozzle (17) is just opposite to a sand outlet pipe (18), and the first passage (14) is further connected with a third passage (19), the end of the third channel (19) is communicated with the first cavity (7).

2. The hardening and sanding prevention device for rail transit according to claim 1, characterized in that: the sand storage chamber (12) is provided with a sand removal plug (20) at the lower end, and a sand discharge cover (21) is covered on the outer side of the sand removal plug (20).

3. The hardening and sanding prevention device for rail transit according to claim 1, characterized in that: and an air source transition joint (22) is arranged at an air inlet of the air inlet channel.

4. The hardening and sanding prevention device for rail transit according to claim 3, characterized in that: and an air inlet quantity regulating valve (23) is fixedly arranged on the air source transition joint (22).

5. The hardening and sanding prevention device for rail transit according to claim 4, characterized in that: and an air nozzle (24) is arranged on an air inlet of the air inlet channel at one side of the air inlet quantity regulating valve (23).

6. The hardening and sanding prevention device for rail transit according to claim 1, characterized in that: the sand outlet pipe (18) is characterized in that a sand spreading pipe (25) is fixedly connected to the tail end of the sand outlet pipe, and the sand spreading pipe (25) is a flexible bent pipe.

7. The hardening and sanding prevention device for rail transit according to claim 6, characterized in that: a gasket is arranged at the joint between the sand outlet pipe (18) and the sand spreading pipe (25).