Rail cooling device

Abstract

The utility model discloses a rail cooling device, comprising: a cooling rack, wherein conveying racks are arranged on the left and right sides of the cooling rack; a conveying mechanism, which is installed on the conveying rack and is used to convey the rails; a spraying mechanism, which is installed on the cooling rack, and the spraying mechanism has a plurality of spraying frames, wherein the plurality of spraying frames are arranged in a distributed manner along the axial direction of the rails, and a plurality of spraying heads for facing the outer side walls of the rails are arranged in a distributed manner on the inner sides of the spraying frames, and the spraying heads are used to spray high-pressure coolant onto the outer side walls of the rails for spray cooling; a clamping mechanism, which is installed on the cooling rack and is used to convey the rails on the cooling rack to the right. The utility model has a reasonable structure, can realize automatic conveying of the rails, is convenient for cooling and lowering the temperature of different positions of the rails, can avoid the accumulation of a large number of bubbles on the surface of the rails, improves the cooling rate, avoids deformation of the rails during cooling, and can better meet the use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to a rail cooling device. Background Art

[0002] Austenitic high manganese steel requires solid solution treatment. The steel is heated to above Acm (the complete austenite transformation point of hypereutectoid steel) and kept warm for a period of time to dissolve the carbides in the cast structure, austenitize the eutectoid type structure, and completely eliminate the cast structure to obtain a single-phase austenite structure with uniform chemical composition; then, it is quickly cooled to obtain a supercooled austenite solid solution structure. The existing solid solution method for casting high manganese steel frog rails is to cool to room temperature after casting, remove the molding sand and riser, stack 8-10 austenitic high manganese steel frog rails together, and then heat them to 1000℃-1050℃, and lift the frog rails to the water tank by an overhead crane for rapid cooling.

[0003] The above cooling method has the following main problems: 1. Since 8-10 frog rails are solution treated together, there is uneven heat dissipation between the stacked frog rails, and the cooling effect is inconsistent; 2. After the frog rails are directly placed in the water tank, bubbles will be generated and attached to the frog rails, hindering further contact between water and the frog rails, so that the frog rails cannot be cooled quickly; 3. Since the frog rails are placed in the water tank after being stacked, the cooling rates of the upper frog rails and the lower frog rails are inconsistent, resulting in large deformation of the frog rails after cooling, and the deformed parts of the frog rails need to be bent and straightened later.

[0004] The invention patent with the authorization announcement number CN104962717B discloses a cooling device for rails, which can significantly improve the cooling rate and cooling efficiency of the rails, while also enabling the waist and bottom of the rails to be well cooled, thereby improving the welding quality of the rail joints.

[0005] However, the above scheme mainly uses air cooling to cool the surface of the rail, which has a relatively low cooling efficiency compared with the water cooling method. In addition, the above scheme cannot realize the automatic transportation of the rail when it is used. It is necessary to use an external lifting mechanism to transfer the rail to the cooling station and then cool it through the cooling device. For longer rails, it is difficult to complete the cooling work in one go. The position of the rail needs to be adjusted frequently to complete the cooling work. The operation is cumbersome and cannot meet the use requirements well. Utility Model Content

[0006] The purpose of the utility model is to provide a rail cooling device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A rail cooling device comprises: a cooling rack, wherein conveying racks are arranged on the left and right sides of the cooling rack; a conveying mechanism, which is installed on the conveying rack and is used to convey the rails; a spraying mechanism, which is installed on the cooling rack, and the spraying mechanism has a plurality of spraying frames, wherein the plurality of spraying frames are arranged in an axial distribution along the rails, and a plurality of spraying heads are arranged on the inner sides of the spraying frames and are used to spray high-pressure coolant on the outer side walls of the rails for spray cooling; and a clamping mechanism, which is installed on the cooling rack and is used to convey the rails on the cooling rack to the right.

[0009] As a preferred solution, the conveying mechanism includes a conveying base plate installed on a conveying frame, and a plurality of conveying seats are distributed and installed on the conveying base plate. A conveying roller is rotatably installed in each of the conveying seats. A conveying motor is also installed on the conveying base plate. The output end of the conveying motor is drivingly connected to the shaft end of the conveying roller, and a chain drive component is also installed between the conveying rollers.

[0010] As a preferred solution, a limiting seat is also installed on the conveying seat, and the upper end of the conveying roller passes through the limiting seat.

[0011] As a preferred solution, the limiting seat is U-shaped.

[0012] As a preferred solution, the spray mechanism includes multiple groups of recovery buckets inserted on the cooling rack, each of the recovery buckets is equipped with a spray frame, each of the spray frames is equipped with a spray pipe, a recovery pipe is installed at the lower end of the recovery bucket, and the other end of the recovery pipe is connected to the sewage treatment tank under the cooling rack.

[0013] As a preferred solution, the clamping mechanism includes multiple groups of clamping frames installed on the cooling frame, each of which has a pair of clamping rollers rotatably installed in it, and the clamping rollers are respectively installed on the upper and lower halves of the clamping frame. A chain drive component 2 is arranged between the clamping rollers in the upper half, a chain drive component 2 is also arranged between the clamping rollers in the lower half, and a chain drive component 3 is also arranged between the clamping rollers in the upper half and the clamping rollers in the lower half. A clamping motor for driving the clamping rollers to rotate is also installed on the cooling frame.

[0014] As a preferred solution, the pinching and conveying racks and the spray frames are staggered.

[0015] As a preferred solution, a protective cover is installed on the cooling rack.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The rails to be cooled are hoisted onto the conveying mechanism on the left, and then transported to the cooling rack by the conveying mechanism. At this time, the rails are transported to the right by the clamping mechanism. At the same time, the rails are sprayed with high-pressure coolant on the outer wall of the rails by multiple nozzles distributed on the inner side of each spray frame. The rails can be sprayed to cool down. The continuous high-pressure coolant spraying can avoid the accumulation of a large number of bubbles on the surface of the rails, thereby realizing rapid cooling of the rails. The cooled rails are transported to the conveying mechanism on the right, and then transported away by the conveying mechanism on the right. The rails can be fully cooled without frequently adjusting the position of the rails by the hoisting equipment. The operation is simple and can better meet the use requirements.

[0018] 2. During the spray cooling process, the clamping mechanism drives the rail to move back and forth, so that all parts of the rail surface are in contact with the high-pressure coolant when moving left and right, ensuring that the cooling rate of all parts of the rail surface is consistent; in addition, the clamping rods distributed up and down can roll and straighten the rails moving back and forth to avoid deformation of the rails during cooling.

[0019] The utility model has a reasonable structure, can realize automatic transportation of rails, is convenient for cooling different positions of rails, can avoid a large number of bubbles gathering on the surface of rails, improves the cooling rate, avoids deformation of rails during cooling, and can better meet use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a rail cooling device;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a conveying mechanism in a rail cooling device;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of a cooling frame in a rail cooling device;

[0023] Figure 4 It is a schematic diagram of a three-dimensional structure of a rail cooling device with an external protective cover hidden at the cooling rack position;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of a spray mechanism in a rail cooling device;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of a clamping and conveying mechanism located at the end of a rail cooling device.

[0026] In the figure: 1-cooling rack, 11-conveying rack, 12-protective cover, 2-conveying mechanism, 21-conveying bottom plate, 22-conveying seat, 23-limiting seat, 24-conveying roller, 25-chain drive component one, 26-conveying motor, 3-pinching mechanism, 31-pinching rack, 32-pinching roller, 33-chain drive component two, 34-chain drive component three, 35-pinching motor, 4-spraying mechanism, 41-spraying pipe, 42-sewage treatment tank, 43-recovery pipe, 44-recovery bucket, 45-spraying frame, 46-spraying head. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example: See Figures 1 to 6 A rail cooling device comprises: a cooling rack 1, wherein conveying racks 11 are arranged on the left and right sides of the cooling rack 1; a conveying mechanism 2, which is installed on the conveying rack 11 and is used to convey the rails; a spraying mechanism 4, which is installed on the cooling rack 1, and the spraying mechanism 4 has a plurality of spray frames 45, and the plurality of spray frames 45 are distributed along the axial direction of the rails, and a plurality of spray heads 46 for facing the outer wall of the rails are distributed and installed on the inner side of the spray frame 45, and the spray heads 46 are used to spray high-pressure coolant to the outer wall of the rails for spray cooling; a clamping mechanism 3, which is installed on the cooling rack 1 and is used to convey the rails on the cooling rack 1 to the right.

[0029] The working principle of the utility model is as follows: when in use, the steel rail to be cooled is hoisted onto the conveying mechanism 2 on the left, and the steel rail to be cooled is conveyed to the cooling rack 1 by the conveying mechanism 2; at this time, the steel rail is transported to the right by the clamping mechanism 3, and at the same time, a plurality of nozzles 46 distributed on the inner side of each spray frame 45 spray high-pressure coolant onto the outer wall of the steel rail, so that the steel rail can be sprayed and cooled. Since continuous high-pressure coolant is used for spraying, a large number of bubbles can be avoided from gathering on the surface of the steel rail, thereby realizing rapid cooling of the steel rail; in addition, during the spray cooling process, the steel rail is driven to move back and forth left and right by the clamping mechanism 3, so that all parts of the surface of the steel rail are in contact with the high-pressure coolant when the rail moves left and right, thereby ensuring that the cooling rate of all parts of the surface of the steel rail is consistent.

[0030] The cooled rails are conveyed to the conveying mechanism 2 on the right, and then conveyed away by the conveying mechanism 2 on the right. The rails can be fully cooled without frequently adjusting the position of the rails through lifting equipment. The operation is simple and can better meet the use requirements.

[0031] As a further solution, the conveying mechanism 2 includes a conveying base plate 21 installed on the conveying frame 11, and a plurality of conveying seats 22 are distributed and installed on the conveying base plate 21. A conveying roller 24 is rotatably installed in each of the conveying seats 22. A conveying motor 26 is also installed on the conveying base plate 21. The output end of the conveying motor 26 is drivingly connected to the shaft end of the conveying roller 24. A chain drive assembly 25 is also installed between the conveying rollers 24. In this embodiment, a limiting seat 23 is also installed on the conveying seat 22. The upper end of the conveying roller 24 passes through the limiting seat 23, and the limiting seat 23 is U-shaped.

[0032] The working principle of the conveying mechanism 2 is: during conveying, the conveying motor 26 is started, and the corresponding conveying roller 24 is driven to rotate by the conveying motor 26. Through the chain drive component 25, the synchronous rotation of multiple groups of conveying rollers 24 can be achieved, thereby completing the conveying work of the steel rail on the conveying roller 24.

[0033] As a further solution, the spray mechanism 4 includes a plurality of recovery buckets 44 inserted on the cooling rack 1, each recovery bucket 44 is equipped with a spray frame 45, each spray frame 45 is equipped with a spray pipe 41, and a recovery pipe 43 is installed at the lower end of the recovery bucket 44, and the other end of the recovery pipe 43 is connected to the sewage treatment tank 42 below the cooling rack 1. In this embodiment, the spray pipe 41 is connected to an external infusion pump, and the cooling liquid is transported into the spray frame 45 through the external infusion pump, and the nozzle 46 is a high-pressure nozzle.

[0034] The working principle of the spray mechanism 4 is as follows: during spraying, high-pressure coolant is delivered to the spray pipe 41 through an external infusion pump, and then the spray pipe 41 transfers the high-pressure coolant to the spray frame 45, and then sprays it out through the nozzle on the spray frame 45, so as to spray the surface of the rail, thereby achieving the cooling of the rail. The sprayed coolant is introduced into the recovery pipe 43 through the recovery bucket 44, and then enters the sewage treatment tank 42 for collection.

[0035] As a further solution, the clamping mechanism 3 includes a plurality of clamping frames 31 mounted on the cooling frame 1, each of the clamping frames 31 is rotatably mounted with a pair of clamping rollers 32, the clamping rollers 32 are respectively mounted on the upper and lower halves of the clamping frames 31, a chain drive assembly 2 33 is arranged between the clamping rollers 32 in the upper half, a chain drive assembly 2 33 is also arranged between the clamping rollers 32 in the lower half, and a chain drive assembly 33 is also arranged between the clamping rollers 32 in the upper half and the clamping rollers 32 in the lower half. Three 34, the cooling rack 1 is also equipped with a pinching motor 35 for driving the pinching rollers 32 to rotate. In this embodiment, the distance between the pinching rollers 32 in the upper half and the pinching rollers 32 in the lower half is adapted to the cross-sectional size of the rail. During the spray cooling process, on the one hand, the pinching rollers 32 distributed up and down can drive the rail to move back and forth under the drive of the pinching motor 35; on the other hand, the pinching rollers 32 distributed up and down can roll and straighten the rail that moves back and forth to avoid deformation of the rail during cooling.

[0036] Chain drive assembly 1 25, chain drive assembly 2 33 and chain drive assembly 3 34 are all existing mature technologies, and can specifically adopt the driving method disclosed in the utility model patent with authorization announcement number CN211520938U (the rotating roller is provided with a sprocket, and adjacent sprockets are connected by chain transmission).

[0037] The working principle of the clamping mechanism 3 is: when clamping, the clamping motor 35 is started, and the clamping motor 35 drives the corresponding clamping roller 32 of the lower half to rotate. At this time, the chain drive component three 34 can drive the corresponding clamping roller 32 of the upper half to rotate. Subsequently, the chain drive component two 33 can realize the synchronous rotation of all the clamping rollers 32 of the upper half and the lower half, so as to transport the steel rails in the middle position to the left and right, which is convenient for cooperating with the spray mechanism 4 to spray and cool the steel rails.

[0038] As a further solution, the pinching rack 31 and the spray frame 45 are staggered, and a protective cover 12 is installed on the cooling rack 1. By providing the protective cover 12, liquid splashing can be effectively prevented.

[0039] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A rail cooling device, characterized in that: include: A cooling rack (1), wherein conveying racks (11) are arranged on the left and right sides of the cooling rack (1); A conveying mechanism (2), mounted on a conveying frame (11), for conveying rails; A spray mechanism (4) is installed on the cooling rack (1), the spray mechanism (4) comprises a plurality of spray frames (45), the plurality of spray frames (45) are arranged in a distributed manner along the axial direction of the rail, a plurality of spray heads (46) are arranged in a distributed manner inside the spray frames (45) and are used to face the outer wall of the rail, the spray heads (46) are used to spray high-pressure coolant onto the outer wall of the rail for spray cooling; The clamping and conveying mechanism (3) is installed on the cooling rack (1) and is used to convey the steel rail on the cooling rack (1) to the right.

2. A rail cooling device according to claim 1, characterized in that: The conveying mechanism (2) comprises a conveying base plate (21) mounted on a conveying frame (11), a plurality of conveying seats (22) are distributedly mounted on the conveying base plate (21), a conveying roller (24) is rotatably mounted in each of the conveying seats (22), a conveying motor (26) is also mounted on the conveying base plate (21), an output end of the conveying motor (26) is drivingly connected to the shaft end of the conveying roller (24), and a chain driving component (25) is also mounted between the conveying rollers (24).

3. A rail cooling device according to claim 2, characterized in that: A limiting seat (23) is also installed on the conveying seat (22), and the upper end of the conveying roller (24) passes through the limiting seat (23).

4. A rail cooling device according to claim 3, characterized in that: The limiting seat (23) is U-shaped.

5. A rail cooling device according to claim 4, characterized in that: The spray mechanism (4) comprises a plurality of recovery buckets (44) inserted on the cooling rack (1), each recovery bucket (44) is provided with a spray frame (45), each spray frame (45) is provided with a spray pipe (41), a recovery pipe (43) is provided at the lower end of the recovery bucket (44), and the other end of the recovery pipe (43) is connected to a sewage treatment tank (42) below the cooling rack (1).

6. A rail cooling device according to claim 5, characterized in that: The clamping mechanism (3) includes a plurality of clamping frames (31) mounted on a cooling frame (1), each of the clamping frames (31) having a pair of clamping rollers (32) rotatably mounted therein, the clamping rollers (32) being mounted on the upper and lower halves of the clamping frames (31), respectively, a chain drive assembly 2 (33) being arranged between the clamping rollers (32) of the upper half, a chain drive assembly 2 (33) being also arranged between the clamping rollers (32) of the lower half, a chain drive assembly 3 (34) being also arranged between the clamping rollers (32) of the upper half and the clamping rollers (32) of the lower half, and a clamping motor (35) for driving the clamping rollers (32) to rotate being also mounted on the cooling frame (1).

7. A rail cooling device according to claim 6, characterized in that: The clamping and conveying rack (31) and the spraying frame (45) are distributed in an alternating manner.

8. A rail cooling device according to claim 7, characterized in that: A protective cover (12) is installed on the cooling rack (1).

Images