Steel rail heat preservation device

Abstract

The utility model provides a steel rail heat preservation device which comprises a drying box, inlets and outlets are formed in the two parallel side faces of the drying box, a plurality of vertical holes are evenly formed in the top of the drying box, circular shafts are inserted into the vertical holes, the lower ends of the circular shafts extend into the drying box and are provided with fan blade parts, and the fan blade parts are provided with fan blades. The upper end of the circular shaft is fixedly connected with an output shaft of the motor through a connecting piece, the circular shaft is sleeved with a water jacket fixedly connected with the circular shaft, the water jacket is installed at the top of the drying box, a movable seal is installed at the position, making contact with the circular shaft, of the water jacket, and a first pipe connector connected with a cooling water inlet pipe is installed on one side of the outer surface of the water jacket. A second pipe connector connected with a cooling water return pipe is installed on the side, away from the first pipe connector, of the outer surface of the water jacket, and the motor is fixedly connected with the water jacket through a supporting piece.

Description

Technical Field

[0001] The utility model relates to a rail insulation device, belonging to the field of rail processing. Background Art

[0002] The rail enters the drying box from the entrance at one end through the conveying mechanism (transmission roller), is electrically dried in the drying box, and then output from the outlet at the other end of the drying box. The length of the drying box is adapted to the conveying speed of the rail. There are electric heaters, high-temperature resistant rollers, and fans on the top. The fans can make the internal heat more uniform. The heating temperature is generally 260-300 degrees, and the time can be 2-3 hours according to different needs. After the heat preservation treatment, the crystal structure of the rail is made more uniform and dense, and some stress generated during plasma strengthening can also be eliminated. The motor part of the fan is generally installed on the outside of the drying box, and the fan blade part of the fan is inside the drying box. Because the temperature in the drying box is high, under the action of heat conduction, the heat in the drying box will be conducted to the motor part of the fan through the fan blade part, causing the motor to fail due to the increase in temperature, affecting the service life of the motor. Therefore, it is necessary to design a rail insulation device to prevent the motor part of the fan from being affected by the heat in the drying box. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a rail insulation device to solve the problems raised in the above-mentioned background technology. The utility model prevents the motor part of the fan from being affected by the heat in the drying box.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a rail insulation device, including a drying box, wherein inlets and outlets are provided on two parallel sides of the drying box, a plurality of vertical holes are evenly provided on the top of the drying box, a round shaft is inserted in the vertical hole, the lower end of the round shaft extends into the drying box and is equipped with a fan blade portion, the upper end of the round shaft is connected and fixed to the output shaft of the motor through a connecting piece, a water jacket connected and fixed to the round shaft is provided on the round shaft, the water jacket is installed on the top of the drying box, a dynamic seal is installed at the contact portion between the water jacket and the round shaft, a first pipe joint connected to a cooling water inlet pipe is installed on one side of the outer surface of the water jacket, a second pipe joint connected to a cooling water return pipe is installed on the side of the outer surface of the water jacket away from the first pipe joint, and the motor is connected and fixed to the water jacket through a support.

[0005] Furthermore, the connecting member includes a connecting shaft, a connecting shaft arranged concentrically with the circular shaft is provided on the upper side of the circular shaft, the end of the connecting shaft away from the circular shaft is connected and fixed to the output end of the motor, and a connecting disk is installed at the lower end of the connecting shaft, and the connecting disk is connected and fixed to the circular shaft by multiple screws.

[0006] Furthermore, the support member includes a support rod, two support rods are symmetrically installed on the upper surface of the water jacket, and the upper ends of the support rods are connected and fixed to the motor.

[0007] Furthermore, two rectangular sleeves are symmetrically installed on the upper surface of the water jacket, a plug is connected and fixed to the lower end of the support rod, the plug is inserted in the rectangular sleeve, the cross-section of the plug is rectangular, a threaded hole is opened at the upper position of one side surface of the rectangular sleeve, and a positioning screw for limiting the relative position of the plug and the rectangular sleeve is threadedly connected in the threaded hole.

[0008] Furthermore, a first flange is fixedly connected to one end of the first pipe joint away from the water jacket, and a second flange is installed on one end of the second pipe joint away from the water jacket.

[0009] Furthermore, a water retaining frame is installed at the top edge of the drying box, and a drainage pipe head connected to the drainage pipe is installed at the lower part of one side of the water retaining frame.

[0010] Beneficial effects of the utility model:

[0011] 1. Use multiple screws to connect the round shaft and the connecting plate to complete the assembly of the connecting shaft and the round shaft. When the motor fails and needs to be removed for maintenance, after removing the screws, the connecting shaft and the round shaft are separated. Therefore, when disassembling the motor, there is no need to remove the fan blade part in the drying box, which reduces the number of disassembly and assembly of parts and improves the convenience of motor disassembly and assembly.

[0012] 2. Connect the first pipe joint to the cooling water inlet pipe, and connect the second pipe joint to the cooling water return pipe, so that the cooling water in the cooling water system enters the space formed by the water jacket and the round shaft and absorbs the heat on the round shaft. The cooling water that absorbs the heat flows back to the cooling water system through the cooling water return pipe, so that the round shaft is in a low temperature state, preventing the heat in the drying box from being transferred to the motor through the fan blades, the round shaft, and the connecting shaft, and preventing the motor part of the fan from being affected by the heat in the drying box.

[0013] 3. When the connection between the first pipe joint and the cooling water inlet pipe or the connection between the second pipe joint and the cooling water return pipe leaks due to sealing failure, the dripping water will drip into the space formed by the drying box and the water retaining frame under the action of its own gravity, which will limit the diffusion range of the dripping water. Then the dripping water will be discharged into the collection container through the channel formed by the drain pipe head and the drainage pipe, which is conducive to maintaining the cleanliness of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1This is a structural schematic diagram of a rail insulation device of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a three-dimensional diagram of a drying box in a rail insulation device of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of a water jacket in a rail insulation device of the utility model;

[0019] Figure 5 It is a schematic diagram of the assembly of the fan blade part and the circular shaft in a rail insulation device of the utility model;

[0020] In the figure: 1-drying box, 2-inlet and outlet, 3-water jacket, 4-motor, 5-water retaining frame, 6-support rod, 7-connecting shaft, 8-drain pipe head, 9-positioning screw, 10-rectangular sleeve, 11-round shaft, 12-first pipe joint, 13-connecting plate, 14-fan blade part, 15-vertical hole, 16-second pipe joint. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 and Figure 3 The utility model provides a technical solution: a rail insulation device, including a drying box 1, two parallel sides of the drying box 1 are provided with an inlet and outlet 2, the design of the inlet and outlet 2 is convenient for the rail to enter and exit the drying box 1, an electric heater is installed on the top of the drying box 1, and after the circuit of the electric heater is turned on, the electric heater heats the inside of the drying box 1.

[0023] See also Figure 1 , Figure 2 , Figure 3 and Figure 5A plurality of vertical holes 15 are evenly provided on the top of the drying box 1, and a round shaft 11 is inserted in the vertical hole 15. The lower end of the round shaft 11 extends into the drying box 1 and is installed with a fan blade part 14. A connecting shaft 7 arranged concentrically with the round shaft 11 is provided on the upper side of the round shaft 11. One end of the connecting shaft 7 away from the round shaft 11 is connected and fixed to the output end of the motor 4. A connecting plate 13 is installed at the lower end of the connecting shaft 7. The connecting plate 13 is connected and fixed to the round shaft 11 by a plurality of screws. The round shaft 11 and the connecting plate 13 are connected by a plurality of screws to complete the assembly of the connecting shaft 7 and the round shaft 11. When the motor 4 fails and needs to be removed for maintenance, after removing the screws, the connecting shaft 7 is separated from the round shaft 11, so that when disassembling the motor 4, it is not necessary to remove and take out the fan blade part 14 in the drying box 1 together, which reduces the number of disassembly and assembly of parts and improves the convenience of disassembly and assembly of the motor 4. When the motor 4 is working, the fan blade part 14 is driven to rotate in the drying box 1, which is beneficial to the flow of air in the drying box 1 and makes the temperature in the drying box 1 uniform.

[0024] See also Figure 1-Figure 5 , a water jacket 3 connected and fixed to the circular shaft 11 is sleeved on the circular shaft 11, and the water jacket 3 is installed on the top of the drying box 1. A dynamic seal is installed at the contact position between the water jacket 3 and the circular shaft 11, and the water jacket 3 realizes the blocking of the vertical hole 15. At the same time, the design of the dynamic seal realizes that the water jacket 3 does not rotate when the circular shaft 11 rotates, that is, the water jacket 3 is rotatably connected to the circular shaft 11 while the seal is realized. Two rectangular sleeves 10 are symmetrically installed on the upper surface of the water jacket 3. A plug is connected and fixed at the lower end of the support rod 6. The plug is inserted in the rectangular sleeve 10. The cross section of the plug is rectangular. A threaded hole is opened at the upper position of one side surface of the rectangular sleeve 10. A positioning screw 9 is threadedly connected in the threaded hole to limit the relative position of the plug and the rectangular sleeve 10, so that the plug at the lower end of the support rod 6 is inserted in the rectangular sleeve 10, and then the plug is fixed in the rectangular sleeve 10 by the positioning screw 9, so that the support rod 6 and the water jacket 3 are assembled. At this time, the water jacket 3 is used to support the motor 4, so that the supporting part on the motor 4 is relative to the water jacket 3 in the low temperature state. Contact, further improve the heat insulation effect of the motor 4, a first pipe joint 12 connected to the cooling water inlet pipe is installed on one side of the outer surface of the water jacket 3, and a second pipe joint 16 connected to the cooling water return pipe is installed on the side of the outer surface of the water jacket 3 away from the first pipe joint 12. The end of the first pipe joint 12 away from the water jacket 3 is connected and fixed with a first flange, and the end of the second pipe joint 16 away from the water jacket 3 is installed with a second flange, so that the first pipe joint 12 is connected to the cooling water inlet pipe, and the second pipe joint 16 is connected to the cooling water return pipe, and then the cooling water in the cooling water system enters the space formed by the water jacket 3 and the circular shaft 11 and absorbs the heat on the circular shaft 11. The cooling water that absorbs the heat flows back to the cooling water system through the cooling water return pipe, so that the circular shaft 11 is in a low temperature state, preventing the heat in the drying box 1 from being conducted to the motor 4 through the fan blade part 14, the circular shaft 11, and the connecting shaft 7, and preventing the motor 4 part in the fan from being affected by the heat in the drying box 1.

[0025] See also Figure 1 and Figure 4 A water retaining frame 5 is installed at the top edge of the drying box 1, and a drainage pipe head 8 connected to the drainage pipe is installed at the lower position of one side of the water retaining frame 5. When the connection part between the first pipe joint 12 and the cooling water inlet pipe or the connection part between the second pipe joint 16 and the cooling water return pipe leaks due to sealing failure, the dripping water will drip into the space formed by the drying box 1 and the water retaining frame 5 under the action of its own gravity, which limits the diffusion range of the dripping water. Then the dripping water is discharged into the collection container through the channel formed by the drainage pipe head 8 and the drainage pipe, which is conducive to maintaining the cleanliness of the working environment.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rail insulation device, comprising a drying box (1), characterized in that: The drying box (1) is provided with an inlet and outlet (2) on two parallel sides. The top of the drying box (1) is evenly provided with a plurality of vertical holes (15). A round shaft (11) is inserted into the vertical hole (15). The lower end of the round shaft (11) extends into the drying box (1) and is provided with a fan blade portion (14). The upper end of the round shaft (11) is connected and fixed to the output shaft of the motor (4) via a connecting piece. A water jacket (3) connected and fixed to the round shaft (11) is sleeved on the round shaft (11). The water jacket (3) is installed on the top of the drying box (1). A dynamic seal is installed at a portion where the water jacket (3) contacts the round shaft (11). A first pipe joint (12) connected to a cooling water inlet pipe is installed on one side of the outer surface of the water jacket (3). A second pipe joint (16) connected to a cooling water return pipe is installed on a side of the outer surface of the water jacket (3) away from the first pipe joint (12). The motor (4) is connected and fixed to the water jacket (3) via a supporting piece.

2. A rail insulation device according to claim 1, characterized in that: The connecting member comprises a connecting shaft (7), a connecting shaft (7) arranged concentrically with the circular shaft (11) being provided on the upper side of the circular shaft (11), an end of the connecting shaft (7) away from the circular shaft (11) being connected and fixed to an output end of the motor (4), and a connecting disk (13) being installed at the lower end of the connecting shaft (7), the connecting disk (13) being connected and fixed to the circular shaft (11) by a plurality of screws.

3. A rail insulation device according to claim 1, characterized in that: The support member comprises a support rod (6), two support rods (6) are symmetrically mounted on the upper surface of the water jacket (3), and the upper ends of the support rods (6) are connected and fixed to the motor (4).

4. A rail insulation device according to claim 3, characterized in that: Two rectangular sleeves (10) are symmetrically mounted on the upper surface of the water jacket (3); a plug is fixedly connected to the lower end of the support rod (6); the plug is inserted into the rectangular sleeve (10); the cross section of the plug is rectangular; a threaded hole is provided at the upper position of one side surface of the rectangular sleeve (10); a positioning screw (9) for limiting the relative position of the plug and the rectangular sleeve (10) is threadedly connected to the threaded hole.

5. A rail insulation device according to claim 1, characterized in that: One end of the first pipe joint (12) away from the water jacket (3) is connected and fixed with a first flange, and one end of the second pipe joint (16) away from the water jacket (3) is installed with a second flange.

6. A rail insulation device according to claim 1, characterized in that: A water retaining frame (5) is installed at the top edge of the drying box (1), and a drainage pipe head (8) connected to a drainage pipe is installed at the lower part of one side of the water retaining frame (5).

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