Cooling device for high-voltage explosion-proof motor shell casting

Abstract

The utility model discloses a cooling device for high-pressure explosion-proof motor casing casting, which belongs to the technical field of motor casing casting and comprises a frame, a cooling box is fixedly mounted on the upper surface of the frame, and a water pump is fixedly mounted on the upper surface of the cooling box. A water outlet of the water pump extends into the cooling box body and is provided with a plurality of U-shaped water pipes, a plurality of fixing blocks are fixedly installed on the U-shaped water pipes, the fixing blocks are fixedly installed on the inner wall of the cooling box body, a plurality of spray heads are installed on the U-shaped water pipes in a communicating mode, and a plurality of workpiece placing racks are fixedly installed on the inner wall of the cooling box body. By arranging a plurality of U-shaped water pipes and a plurality of workpiece placing racks for use, a plurality of castings can be cooled at a time when water is sprayed out to cool the castings, the cooling operation efficiency is improved, cooling can be accelerated by using an exhaust fan in a matched mode, and meanwhile the humidity of exhausted gas can be prevented from being large by using a drying bag in a matched mode.

Description

Technical Field

[0001] This utility model belongs to the field of motor housing casting technology, specifically relating to a cooling device for casting high-pressure explosion-proof motor housings. Background Technology

[0002] Electric motors are an indispensable power device in industrial production and daily life. Sand casting is the most commonly used process in the casting of motor housings. It involves compacting molding sand into a sand mold of a certain shape, then pouring molten metal into it. After the molten metal cools and solidifies, the desired casting can be obtained.

[0003] After the motor housing is cast, it needs to be cooled. Cooling devices are required for this process. However, existing cooling devices cannot cool multiple parts at once, resulting in low cooling efficiency. Furthermore, during the cooling process, metal debris attached to the surface of the casting will also flow with the water, causing the discharged water to be mixed with metal debris. Therefore, we propose a cooling device for casting high-pressure explosion-proof motor housings. Utility Model Content

[0004] The purpose of this utility model is to provide a cooling device for casting high-pressure explosion-proof motor housings, in order to solve the problem that the existing cooling devices mentioned in the background art cannot cool multiple parts at once, have low cooling efficiency, and that metal debris attached to the surface of the casting will also flow with the water during the cooling process, which will lead to the problem that the discharged water contains metal debris.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for casting high-pressure explosion-proof motor housings, comprising a frame, a cooling chamber fixedly mounted on the upper surface of the frame, a water pump fixedly mounted on the upper surface of the cooling chamber, the outlet of the water pump extending into the interior of the cooling chamber and having several U-shaped water pipes installed thereon, several fixing blocks fixedly mounted on the U-shaped water pipes, the fixing blocks fixedly mounted on the inner wall of the cooling chamber, several nozzles connected to the U-shaped water pipes, several workpiece placement platforms fixedly mounted on the inner wall of the cooling chamber, and an opening on the side of the cooling chamber with a hinged sealing door at the opening. A flow guide shroud is installed on the lower surface of the inner wall of the cooling chamber. A connecting pipe is installed on the lower surface of the flow guide shroud. The connecting pipe extends out of the cooling chamber and is fixedly installed with an upper cylinder. A lower cylinder is detachably installed on the lower surface of the upper cylinder. A filter screen and a mounting frame are inserted into the lower cylinder. A motor is fixedly installed on the surface of the mounting frame. A rotating shaft is fixedly installed at the end of the output shaft of the motor. A scraper brush is fixedly installed at the bottom end of the rotating shaft. The scraper brush is closely attached to the inner wall of the filter screen. A water outlet pipe is connected to the lower surface of the lower cylinder. An installation cylinder is fixedly installed on the upper surface of the cooling chamber. An exhaust fan is fixedly installed on the inner wall of the installation cylinder.

[0006] By adopting the above scheme, multiple U-shaped water pipes and multiple workpiece placement frames are used. When water is sprayed to cool the castings, multiple castings can be cooled at the same time, improving the efficiency of the cooling operation. The use of exhaust fans can accelerate the cooling process, and the use of drying bags can prevent the exhaust gas from being too humid. By setting up a lower cylinder and an upper cylinder in conjunction with a filter screen and a scraper brush, the filter screen can filter the cooling water, preventing metal debris from being discharged simultaneously, thus achieving a good metal debris collection effect. The rotation of the scraper brush cleans the filter screen, preventing the mesh from becoming clogged. Both the filter screen and the scraper brush can be easily disassembled and cleaned.

[0007] In the above scheme, it should be noted that the water pump, motor and exhaust fan are all electrically connected to an external power supply.

[0008] In a preferred embodiment, a plurality of movable screws are inserted between the lower cylinder and the upper cylinder, and a nut is threaded onto the outer surface of each movable screw.

[0009] By using the above solution, a stable connection between the upper and lower cylinders can be achieved by using a movable screw in conjunction with a nut. The assembly structure is simple and the operation and disassembly are convenient.

[0010] In a preferred embodiment, a sealing groove is provided on the lower surface of the upper cylinder and the upper surface of the lower cylinder, and a sealing ring is embedded in the sealing groove, with the two sealing rings arranged in a relatively close fit.

[0011] By using the above solution, and employing a sealing groove in conjunction with a sealing ring, a good seal between the lower and upper cylinders can be ensured, preventing water from overflowing.

[0012] In a preferred embodiment, a support ring and several insert plates are fixedly installed on the inner wall of the lower cylinder. The filter screen is fitted onto the upper surface of the support ring. Several insert seats are fixedly installed on the outer surface of the filter screen and the outer surface of the mounting frame, respectively. Two insert seats at the same side position are slidably inserted into the outer surface of the corresponding insert plate. Locking pins are inserted into the insert seats on the mounting frame, and locking grooves for the locking pins are opened on the side of the insert plate.

[0013] By using the above scheme, the insert bar seat is inserted into the insert bar plate and supported by the support ring. With the locking pin inserted into the locking groove, the filter screen cylinder and the mounting frame can be installed. The installation structure is simple and the operation is convenient.

[0014] In a preferred embodiment, the inner wall of the mounting cylinder is provided with a fixed mesh frame, a drying bag, and a movable mesh frame. The fixed mesh frame is fixedly installed on the inner wall of the mounting cylinder, and the drying bag is fitted between the fixed mesh frame and the movable mesh frame.

[0015] The above solution utilizes fixed and movable mesh frames in conjunction with drying bags to dry the exhaust gas, preventing excessive moisture content.

[0016] In a preferred embodiment, a plurality of assembly blocks are fixedly installed on the inner wall of the fixed mesh frame, and a plurality of assembly sleeves are fixedly installed on the inner wall of the movable mesh frame. Fixing screws are fixedly installed on the surface of the assembly blocks, and the fixing screws pass through the assembly sleeves and are threaded with nuts.

[0017] Using the above solution, the movable mesh frame can be fixed by using the movable screw in conjunction with nut two, thereby preventing the drying bag from shifting and facilitating the disassembly and replacement of the drying bag.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This cooling device for casting high-pressure explosion-proof motor housings uses multiple U-shaped water pipes and multiple workpiece placement frames. When water is sprayed out to cool the castings, multiple castings can be cooled at once, improving the efficiency of the cooling operation. In addition, the use of an exhaust fan can accelerate the cooling process, and the use of a drying bag can prevent the exhaust gas from having high humidity.

[0020] This cooling device for casting high-pressure explosion-proof motor housings uses a lower and upper cylinder in conjunction with a filter screen and a scraper brush. The filter screen filters the cooling water, preventing metal debris from being discharged simultaneously, thus achieving a good metal debris collection effect. The rotation of the scraper brush cleans the filter screen, preventing the mesh from becoming clogged. Both the filter screen and the scraper brush are easy to disassemble and clean. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the cooling box of this utility model;

[0023] Figure 3 This is a schematic diagram of the frame structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the upper and lower cylinders of this utility model during an explosion;

[0025] Figure 5 This is a structural schematic diagram of the lower cylinder cross-section of this utility model;

[0026] Figure 6 This is a structural schematic diagram of the cross-section of the mounting cylinder of this utility model.

[0027] In the diagram: 1. Frame; 2. Cooling chamber; 3. Water pump; 4. U-shaped water pipe; 5. Fixing block; 6. Nozzle; 7. Workpiece placement platform; 8. Sealing door; 9. Flow guide; 10. Connecting pipe; 11. Upper cylinder; 12. Lower cylinder; 13. Filter screen cylinder; 14. Mounting frame; 15. Motor; 16. Rotating shaft; 17. Scraper brush; 18. Water outlet pipe; 19. Mounting cylinder; 20. Exhaust fan; 21. Movable screw; 22. Nut one; 23. Sealing ring; 24. Support ring; 25. Insert plate; 26. Insert plate seat; 27. Locking pin; 28. Fixed screen frame; 29. ​​Drying bag; 30. Movable screen frame; 31. Assembly block; 32. Fixing screw; 33. Assembly sleeve; 34. Nut two. Detailed Implementation

[0028] Please see Figure 1-6This utility model provides a cooling device for casting high-pressure explosion-proof motor housings, including a frame 1. A cooling chamber 2 is fixedly installed on the upper surface of the frame 1. A water pump 3 is fixedly installed on the upper surface of the cooling chamber 2. The outlet of the water pump 3 extends into the interior of the cooling chamber 2 and is equipped with several U-shaped water pipes 4. Several fixing blocks 5 are fixedly installed on the U-shaped water pipes 4. The fixing blocks 5 are fixedly installed on the inner wall of the cooling chamber 2. Several nozzles 6 are connected to the U-shaped water pipes 4. Several workpiece placement platforms 7 are fixedly installed on the inner wall of the cooling chamber 2. The side of the cooling chamber 2 has an opening, and a sealing door 8 is hinged at the opening. A flow guide shroud 9 is installed on the lower surface of the inner wall of the cooling chamber 2. A connecting pipe 10 is installed on the lower surface of the flow guide shroud 9. The connecting pipe 10 extends out of the cooling box 2 and is fixedly installed with an upper cylinder 11. A lower cylinder 12 is detachably installed on the lower surface of the upper cylinder 11. A filter screen cylinder 13 and a mounting bracket 14 are inserted into the lower cylinder 12. A motor 15 is fixedly installed on the surface of the mounting bracket 14. A rotating shaft 16 is fixedly installed at the end of the output shaft of the motor 15. A scraper brush 17 is fixedly installed at the bottom end of the rotating shaft 16. The scraper brush 17 is attached to the inner wall of the filter screen cylinder 13. A water outlet pipe 18 is connected to the lower surface of the lower cylinder 12. An installation cylinder 19 is fixedly installed on the upper surface of the cooling box 2. An exhaust fan 20 is fixedly installed on the inner wall of the installation cylinder 19.

[0029] By using multiple U-shaped water pipes 4 and multiple workpiece placement stands 7, multiple castings can be cooled at once when water is sprayed out to cool the castings, improving the efficiency of the cooling operation. In addition, the use of exhaust fans 20 can accelerate the cooling process. At the same time, the use of drying bags 29 can avoid excessive humidity in the exhaust gas. By using the lower cylinder 12 and the upper cylinder 11 in conjunction with the filter screen cylinder 13 and the scraper brush 17, the filter screen cylinder 13 can filter the cooling water, preventing metal debris from being discharged simultaneously, thus achieving a good metal debris collection effect. The rotation of the scraper brush 17 cleans the filter screen cylinder 13, preventing the mesh from becoming clogged. Both the filter screen cylinder 13 and the scraper brush 17 can be easily disassembled and cleaned.

[0030] Several movable screws 21 are inserted between the lower cylinder 12 and the upper cylinder 11. Nuts 22 are installed on the outer surface of the movable screws 21. By using the movable screws 21 in conjunction with the nuts 22, a stable connection between the upper cylinder 11 and the lower cylinder 12 can be achieved. The assembly structure is simple and the operation and disassembly are convenient.

[0031] Both the lower surface of the upper cylinder 11 and the upper surface of the lower cylinder 12 are provided with sealing grooves, and sealing rings 23 are embedded in the sealing grooves. The two sealing rings 23 are arranged in a relatively close manner. By using the sealing grooves in conjunction with the sealing rings 23, a good seal between the lower cylinder 12 and the upper cylinder 11 can be ensured, and water overflow can be prevented.

[0032] A support ring 24 and several insert plates 25 are fixedly installed on the inner wall of the lower cylinder 12. The filter screen cylinder 13 is fitted onto the upper surface of the support ring 24. Several insert seats 26 are fixedly installed on the outer surface of the filter screen cylinder 13 and the outer surface of the mounting frame 14, respectively. Two insert seats 26 at the same position are slidably inserted into the outer surface of the insert plate 25 at the corresponding position. Locking pins 27 are inserted into the insert seats 26 on the mounting frame 14. The side of the insert plate 25 has a locking groove for the locking pins 27 to be inserted. By inserting the insert seats 26 into the insert plates 25 and supporting them with the support ring 24, and by inserting the locking pins 27 into the locking groove, the filter screen cylinder 13 and the mounting frame 14 can be installed. The installation structure is simple and the operation is convenient.

[0033] The inner wall of the mounting cylinder 19 is provided with a fixed mesh plate frame 28, a drying bag 29, and a movable mesh plate frame 30. The fixed mesh plate frame 28 is fixedly installed on the inner wall of the mounting cylinder 19, and the drying bag 29 is closely arranged between the fixed mesh plate frame 28 and the movable mesh plate frame 30. The fixed mesh plate frame 28 and the movable mesh plate frame 30 are used in conjunction with the drying bag 29 to dry the exhaust gas and prevent the exhaust gas from being too humid.

[0034] Several assembly blocks 31 are fixedly installed on the inner wall of the fixed mesh plate frame 28, and several assembly sleeves 33 are fixedly installed on the inner wall of the movable mesh plate frame 30. Fixing screws 32 are fixedly installed on the surface of the assembly blocks 31. The fixing screws 32 pass through the assembly sleeves 33 and are threaded with nuts 34. By using the movable screws 21 in conjunction with nuts 34, the movable mesh plate frame 30 can be fixed, thereby preventing the drying bag 29 from shifting and facilitating the disassembly and replacement of the drying bag 29.

[0035] In use, open the sealing door 8 and place the multiple castings to be cooled onto the multiple workpiece placement frames 7 respectively. Close the sealing door 8, start the water pump 3, motor 15 and exhaust fan 20. The water pump 3 draws cold water from the outside and delivers it through the U-shaped water pipe 4 to the nozzle 6 for spraying. The sprayed water cools the castings. During the cooling process, the water flows downward, flows through the guide shroud 9 and connecting pipe 10 into the upper cylinder 11, and then into the lower cylinder 12. After the metal debris is filtered out by the slag filter screen 13, it is discharged from the outlet pipe 18. At the same time, the motor 15 drives the rotating shaft 16 to drive the scraper brush 1. 7. Rotate the brush 17 to clean the inner wall of the filter screen cylinder 13, preventing the mesh from becoming clogged and affecting water flow. At the same time, the exhaust fan 20 works to exhaust hot gas and dries the exhaust gas in conjunction with the drying bag 29. After the operation is completed, turn the movable screw 21 and nut 1 22 to separate the upper cylinder 11 and the lower cylinder 12. After removing the lower cylinder 12, pull out the locking pin 27 to unlock the mounting bracket 14 and the filter screen cylinder 13. The mounting bracket 14 and the filter screen cylinder 13 can be pulled out. Unscrew nut 2 34 to unlock the movable screen frame 30, and then remove the drying bag 29 for replacement.

Claims

1. A cooling device for casting high-pressure explosion-proof motor housings, characterized in that: The cooling box (2) is fixedly mounted on the upper surface of the frame (1). A water pump (3) is fixedly mounted on the upper surface of the cooling box (2). The outlet of the water pump (3) extends into the interior of the cooling box (2) and is equipped with several U-shaped water pipes (4). Several fixing blocks (5) are fixedly mounted on the U-shaped water pipes (4). The fixing blocks (5) are fixedly mounted on the inner wall of the cooling box (2). Several nozzles (6) are connected to the U-shaped water pipes (4). Several workpiece placement platforms (7) are fixedly mounted on the inner wall of the cooling box (2). The side of the cooling box (2) has an opening and a sealing door (8) is hinged at the opening. A flow guide (9) is installed on the lower surface of the inner wall of the cooling box (2). A connecting channel is installed on the lower surface of the flow guide (9). The tube (10) extends out of the cooling box (2) and is fixedly installed with an upper cylinder (11). The lower surface of the upper cylinder (11) is detachably installed with a lower cylinder (12). The lower cylinder (12) is fitted with a filter screen cylinder (13) and a mounting bracket (14). The mounting bracket (14) is fixedly installed with a motor (15). The output shaft of the motor (15) is fixedly installed with a rotating shaft (16). The bottom end of the rotating shaft (16) is fixedly installed with a scraper brush (17). The scraper brush (17) is attached to the inner wall of the filter screen cylinder (13). The lower surface of the lower cylinder (12) is connected to a water outlet pipe (18). The upper surface of the cooling box (2) is fixedly installed with an installation cylinder (19). The inner wall of the installation cylinder (19) is fixedly installed with an exhaust fan (20).

2. The cooling device for casting high-voltage explosion-proof motor housings according to claim 1, characterized in that: A number of movable screws (21) are inserted between the lower cylinder (12) and the upper cylinder (11), and a nut (22) is threaded on the outer surface of the movable screws (21).

3. The cooling device for casting high-voltage explosion-proof motor housings according to claim 1, characterized in that: The lower surface of the upper cylinder (11) and the upper surface of the lower cylinder (12) are provided with sealing grooves, and sealing rings (23) are embedded in the sealing grooves. The two sealing rings (23) are arranged in a relatively close manner.

4. The cooling device for casting high-voltage explosion-proof motor housings according to claim 1, characterized in that: The inner wall of the lower cylinder (12) is fixedly installed with a support ring (24) and several insert plates (25). The filter screen cylinder (13) is attached to the upper surface of the support ring (24). Several insert seats (26) are fixedly installed on the outer surface of the filter screen cylinder (13) and the outer surface of the mounting frame (14). Two insert seats (26) at the same side position are slidably inserted into the outer surface of the insert plate (25) at the corresponding position. Locking pins (27) are inserted into the insert seats (26) on the mounting frame (14). The side of the insert plate (25) is provided with a locking groove for the locking pins (27) to be inserted.

5. The cooling device for casting high-voltage explosion-proof motor housings according to claim 1, characterized in that: The inner wall of the mounting cylinder (19) is provided with a fixed mesh frame (28), a drying bag (29) and a movable mesh frame (30). The fixed mesh frame (28) is fixedly installed on the inner wall of the mounting cylinder (19), and the drying bag (29) is fitted between the fixed mesh frame (28) and the movable mesh frame (30).

6. The cooling device for casting high-voltage explosion-proof motor housing according to claim 5, characterized in that: The inner wall of the fixed mesh frame (28) is fixedly installed with several assembly blocks (31), and the inner wall of the movable mesh frame (30) is fixedly installed with several assembly sleeves (33). The surface of the assembly block (31) is fixedly installed with a fixing screw (32), and the fixing screw (32) passes through the assembly sleeve (33) and is threaded with a nut (34).

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