Composite wear-resistant sanding pipe

Abstract

The utility model discloses a composite wear-resistant sanding pipe, which relates to the technical field of rail train accessories and comprises a sanding pipe body, a butt-joint base is fixedly mounted on the sanding pipe body, a butt-joint through hole is arranged at the edge of the butt-joint base, a metal sand outlet is fixedly mounted at the other end of the sanding pipe body, and the metal sand outlet is communicated with the butt-joint base. A heating assembly is fixedly mounted on the outer side of the metal sand outlet, the heating assembly comprises a positioning cover body fixedly mounted on the outer side of the metal sand outlet, an induction heating coil is fixedly mounted in the positioning cover body, a mounting groove is formed in the positioning cover body, a sealing ring is arranged in the mounting groove, and the metal sand outlet is formed in the positioning cover body. According to the composite wear-resistant sanding pipe, the sealing mechanism can prevent rain and snow from entering the sanding pipe body, and the heating assembly can enable the temperature of the metal sand outlet to be rapidly increased, so that ice blocks in the metal sand outlet can be rapidly melted.

Description

Technical Field

[0001] The utility model relates to the technical field of rail train accessories, in particular to a composite wear-resistant sand-spreading pipe. Background Art

[0002] Sand-spreading braking is an important auxiliary braking method in locomotive braking systems. It increases friction by spreading sand between the wheels and the track, thereby improving the braking effect and operational safety of the locomotive. Due to the frequent and severe rain and snow in northern winter, locomotives are affected by the real-time rain and snow while pulling trains, and rain and snow will condense and freeze at the sand-spreading nozzles.

[0003] Publication No. CN221775824U discloses a locomotive sand-spreading pipe heating device comprising a curved fixing plate, a curved clamping plate, a curved heating plate, and a driving assembly. The locomotive sand-spreading pipe heating device provided by the utility model comprises a curved fixing plate, curved clamping plates hingedly mounted on both sides of the curved fixing plate, the axes of the two curved clamping plates being parallel to the axis of the curved fixing plate, and a curved heating plate mounted on the inner wall of the curved clamping plate.

[0004] The above-mentioned device can heat the sand-spreading pipe mouth through the arc-shaped heating plate to melt the ice at the sand-spreading pipe mouth. However, the heating speed of the heating plate is slow and cannot quickly melt the ice at the sand-spreading pipe mouth. In an emergency, the sand may not be sprinkled out in time, which poses a certain risk. In addition, the sand-spreading pipe mouth is often open, and rain and snow can easily enter the sand-spreading pipe, causing the inside of the sand-spreading pipe to be frozen. Utility Model Content

[0005] The utility model aims to provide a composite wear-resistant sand spreading pipe to solve the problem in the prior art that ice at the opening of the sand spreading pipe cannot be melted quickly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite wear-resistant sand-spreading pipe, comprising a sand-spreading pipe body, the sand-spreading pipe body is fixedly installed with a docking base, a docking through-hole is provided at the edge of the docking base, a metal sand outlet is fixedly installed at the other end of the sand-spreading pipe body, a heating component is fixedly installed on the outside of the metal sand outlet, the heating component comprises a positioning cover body fixedly installed on the outside of the metal sand outlet, an induction heating coil is fixedly installed in the positioning cover body, an installation groove is provided on the positioning cover body, a sealing ring is provided in the installation groove, and a sealing mechanism is provided on the inside of the metal sand outlet.

[0007] Preferably, docking legs are fixedly installed at both ends of the positioning cover body, docking screw holes are opened on the docking legs, fixing bolts are connected in the docking screw holes, and the docking legs are docked together by the fixing bolts.

[0008] Preferably, an inlet and outlet hole is provided on the positioning cover, and the power line of the induction heating coil extends out of the positioning cover through the inlet and outlet hole.

[0009] Preferably, the sealing ring is installed on the positioning cover through the installation groove, the fixing bolt is connected to the docking support leg through the docking screw hole, and the positioning cover is fixed to the metal sand outlet through the fixing bolt.

[0010] Preferably, the sealing mechanism includes a mounting base fixedly installed in the metal sand outlet, a mounting foot fixedly installed on the mounting base, a movable shaft fixedly installed on the mounting foot, an iron end cover rotatably installed on the movable shaft, torsion springs are provided at both ends of the movable shaft, a movable notch is opened on the iron end cover, and an electromagnet is fixedly installed on one side of the iron end cover in the metal sand outlet.

[0011] Preferably, a fixing hole is provided on the mounting foot, and the movable shaft is fixed to the mounting foot through the fixing hole.

[0012] Preferably, the movable shaft is installed in the metal sand outlet through a mounting base, the iron end cover is movably installed on the movable shaft through a movable notch, one end of the torsion spring is fixed on the movable shaft, and the other end of the torsion spring is fixed on the iron end cover, the electromagnet is aligned front to back with the iron end cover, and the iron end cover is restricted in the metal sand outlet by the electromagnet.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present application, when alternating current acts on the induction heating coil, an alternating magnetic field will be generated inside the coil. This magnetic field is constantly adjusted with the periodic changes of the current, thereby forming a dynamic electromagnetic field environment. The metal sand outlet is placed in the magnetic field area generated by the induction coil. Since the metal sand outlet is conductive, when the magnetic field changes, an induced electromotive force will be induced inside it. Subsequently, the induced electromotive force excites an induced current inside the metal sand outlet. The induced current flows inside the metal sand outlet, forming an eddy current effect, which in turn generates heat, causing the metal sand outlet to heat up rapidly, thereby achieving rapid melting of the ice inside.

[0015] 2. In this application, when the electromagnet is energized, the magnetic field it generates attracts the iron end cap, sealing the metal sand outlet to prevent rain, snow, and other foreign matter from entering the sand spreading tube. When the electromagnet is de-energized, the torsion spring forces the iron end cap to rotate about its pivot, automatically opening it and facilitating sand spreading operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the heating component of the present invention;

[0019] Figure 4 This is a schematic diagram of the sealing mechanism of the present invention.

[0020] Numbers in the figure: 1. Docking hole; 2. Docking base; 3. Sanding tube body; 4. Metal sand outlet; 5. Heating component; 501. Positioning cover; 502. Docking foot; 503. Fixing bolt; 504. Mounting groove; 505. Docking screw hole; 506. Sealing ring; 507. Induction heating coil; 6. Sealing mechanism; 601. Mounting base; 602. Mounting foot; 603. Movable shaft; 604. Torsion spring; 605. Movable notch; 606. Iron end cover; 607. Electromagnet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution for a composite wear-resistant sand-spreading pipe, including a sand-spreading pipe body 3, on which a docking base 2 is fixedly installed, and a docking through-hole 1 is provided at the edge of the docking base 2. A metal sand outlet 4 is fixedly installed at the other end of the sand-spreading pipe body 3, and a heating component 5 is fixedly installed on the outside of the metal sand outlet 4. A sealing mechanism 6 is provided on the inside of the metal sand outlet 4. The sealing mechanism 6 can prevent rain and snow from entering the interior of the sand-spreading pipe body 3, and the heating component 5 can quickly heat up the metal sand outlet 4 and quickly melt the ice in the metal sand outlet 4.

[0023] like Figure 2 and Figure 3As shown, the heating component 5 includes a positioning cover 501 fixedly installed on the outside of the metal sand outlet 4, an induction heating coil 507 is fixedly installed in the positioning cover 501, a mounting groove 504 is provided on the positioning cover 501, a sealing ring 506 is provided in the mounting groove 504, docking legs 502 are fixedly installed at both ends of the positioning cover 501, docking legs 502 are provided with docking screw holes 505, and the docking screw holes 505 are connected with fixing bolts 503, and the docking legs 502 are docked together by the fixing bolts 503, and an inlet and outlet hole is provided on the positioning cover 501, and the power cord of the induction heating coil 507 extends out of the positioning cover 501 through the inlet and outlet hole.

[0024] Specifically, when alternating current flows through the induction heating coil 507, an alternating magnetic field will be generated inside the coil. This magnetic field continues to change with the change of current, forming a dynamic electromagnetic environment. The metal sand outlet 4 is placed within the magnetic field generated by the induction coil. Given that the metal sand outlet 4 has conductive properties, when the magnetic field changes, an induced potential will be induced inside the metal sand outlet 4, thereby prompting an induced current to be formed inside the metal sand outlet 4. The induced current flows inside the metal sand outlet 4 in the form of eddy current, thereby generating heat, causing the temperature of the metal sand outlet 4 to rise rapidly, thereby achieving rapid melting of ice cubes in the metal sand outlet 4.

[0025] like Figure 2 and Figure 4 As shown, the sealing mechanism 6 includes a mounting base 601 fixedly installed in the metal sand outlet 4, a mounting foot 602 is fixedly installed on the mounting base 601, a movable shaft 603 is fixedly installed on the mounting foot 602, an iron end cover 606 is rotatably installed on the movable shaft 603, a torsion spring 604 is provided at both ends of the movable shaft 603, a movable notch 605 is provided on the iron end cover 606, an electromagnet 607 is fixedly installed on one side of the iron end cover 606 in the metal sand outlet 4, a fixing hole is provided on the mounting foot 602, and the movable shaft 603 is fixed to the mounting foot 602 through the fixing hole.

[0026] Specifically, when the electromagnet 607 is powered on, it immediately generates a magnetic force, attracting the iron end cap 606. Under the magnetic force of the electromagnet 607, the iron end cap 606 is tightly attached to the surface of the electromagnet 607. This effectively blocks the metal sand outlet 4, preventing rainwater, snowflakes, and other foreign matter from entering the interior of the sand spreading tube body 3. This design ensures that the sand spreading tube body 3 remains dry and clean even in inclement weather, thereby ensuring the normal operation of the sand spreading equipment.

[0027] On the other hand, when sand spreading operation is required, we only need to disconnect the power supply of electromagnet 607. At this time, the torsion spring 604 will play its role, generate torque, and drive the iron end cover 606 to rotate around the movable shaft 603, so that the iron end cover 606 is released from the adsorption state. As the iron end cover 606 rotates, it will automatically open the metal sand outlet 4, facilitating the sand spreading operation.

[0028] Working principle: When in use, the sand spreading tube body 3 is installed on the sand spreading device of the machine tool through the docking base 2, and the induction heating coil 507 can be installed on the outside of the metal sand outlet 4 through the positioning cover 501. Once the metal sand outlet 4 is frozen, the power supply of the induction heating coil 507 can be turned on. When the alternating current passes through the induction heating coil 507, an alternating magnetic field will be generated in the coil. This magnetic field will continue to change with the change of current, forming a dynamic electromagnetic field. The metal sand outlet 4 is located in the magnetic field of the induction coil. Since the metal sand outlet 4 is a conductor, when the magnetic field changes, an induced potential will be generated inside the metal sand outlet 4, and then An induced current is formed inside the metal sand outlet 4, and this induced current flows inside the metal sand outlet 4 to form an eddy current. The eddy current can make the metal sand outlet 4 heat up, generate heat, and quickly heat up the metal sand outlet 4, quickly melting the ice in the metal sand outlet 4. At the same time, after the power of the electromagnet 607 is turned on, it will adsorb the iron end cover 606, so that the iron end cover 606 blocks the metal sand outlet 4 to prevent rain and snow from entering the inside of the sand spreading tube body 3. At the same time, after the power of the electromagnet 607 is turned off, the torsion spring 604 will drive the iron end cover 606 to rotate around the movable shaft 603, so that the iron end cover 606 is automatically opened, which is convenient for sand spreading operations.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A composite wear-resistant sand-spreading pipe, comprising a sand-spreading pipe body (3), wherein the sand-spreading pipe body (3) is fixedly mounted with a docking base (2), and a docking through hole (1) is provided at the edge of the docking base (2), characterized in that: A metal sand outlet (4) is fixedly mounted on the other end of the sand spreading tube body (3); a heating assembly (5) is fixedly mounted on the outside of the metal sand outlet (4); the heating assembly (5) comprises a positioning cover (501) fixedly mounted on the outside of the metal sand outlet (4); an induction heating coil (507) is fixedly mounted inside the positioning cover (501); a mounting groove (504) is provided on the positioning cover (501); a sealing ring (506) is provided in the mounting groove (504); and a sealing mechanism (6) is provided on the inside of the metal sand outlet (4).

2. The composite wear-resistant sand-spreading pipe according to claim 1, characterized in that: The two ends of the positioning cover (501) are fixedly mounted with docking legs (502), the docking legs (502) are provided with docking screw holes (505), the docking screw holes (505) are connected with fixing bolts (503), and the docking legs (502) are docked together by the fixing bolts (503).

3. The composite wear-resistant sand-spreading pipe according to claim 2, characterized in that: An inlet and outlet hole is provided on the positioning cover (501), and a power line of the induction heating coil (507) extends out of the positioning cover (501) through the inlet and outlet hole.

4. The composite wear-resistant sand-spreading pipe according to claim 3, characterized in that: The sealing ring (506) is installed on the positioning cover (501) through the installation groove (504), the fixing bolt (503) is connected to the docking leg (502) through the docking screw hole (505), and the positioning cover (501) is fixed to the metal sand outlet (4) through the fixing bolt (503).

5. The composite wear-resistant sand spreading pipe according to claim 1, characterized in that: The sealing mechanism (6) comprises a mounting base (601) fixedly mounted in the metal sand outlet (4), a mounting foot (602) fixedly mounted on the mounting base (601), a movable shaft (603) fixedly mounted on the mounting foot (602), an iron end cover (606) rotatably mounted on the movable shaft (603), torsion springs (604) are provided at both ends of the movable shaft (603), a movable notch (605) is provided on the iron end cover (606), and an electromagnet (607) is fixedly mounted on one side of the iron end cover (606) in the metal sand outlet (4).

6. The composite wear-resistant sand-spreading pipe according to claim 5, characterized in that: A fixing hole is provided on the mounting foot (602), and the movable shaft (603) is fixed to the mounting foot (602) through the fixing hole.

7. The composite wear-resistant sand spreading pipe according to claim 6, characterized in that: The movable shaft (603) is installed in the metal sand outlet (4) through the installation base (601); the iron end cover (606) is movably installed on the movable shaft (603) through the movable notch (605); one end of the torsion spring (604) is fixed on the movable shaft (603); the other end of the torsion spring (604) is fixed on the iron end cover (606); the electromagnet (607) and the iron end cover (606) are aligned front to back, and the iron end cover (606) is restricted in the metal sand outlet (4) by the electromagnet (607).

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