High temperature motor internal circulating water cooling casting system

Abstract

The utility model relates to a kind of high-temperature motor inner circulating water cooling casting systems, including motor rotor, front water cooling end cover, plug, water hole, sealing washer, water inlet, machine base, stator, rear water cooling end cover, bearing, water outlet, front water cooling end cover exhaust hole, rear water cooling end cover exhaust hole, machine base exhaust hole, machine base water distribution plate;Front water cooling end cover, machine base, rear water cooling end cover are respectively integrally structured by casting;Multiple front water cooling end cover exhaust holes are equipped on front water cooling end cover;Multiple machine base exhaust holes are equipped on machine base;Multiple rear water cooling end cover exhaust holes are equipped on rear water cooling end cover.The utility model has simplified production process, while reducing manpower and time cost input;It improves product pass rate;It improves the stability and life of motor operation;It reduces the influence of external high-temperature environment and external force on waterway;It ensures that waterway is unobstructed, ensures motor operation safety;It reduces the material cost and transportation cost of motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically to a high-temperature motor internal circulating water-cooled casting system. Background Technology

[0002] In the steel mill production process, the electric motor of the continuous casting machine is used in the straightening process, mainly for stretching and straightening the steel. Its performance and reliability have a significant impact on the production quality and efficiency of the steel. The ambient temperature of the continuous casting machine electric motor is around 100℃~200℃. Due to the relatively high ambient temperature, in order to prevent the motor stator from burning out or the bearing grease from drying out and causing the motor rotor to seize, the frame and end cover of traditional water-cooled electric motors are mostly made of welded steel components.

[0003] The steel welded machine base and end cap have some obvious defects:

[0004] 1. The welding process is relatively complex, requiring professional operators and specific equipment, resulting in high labor and equipment costs. The welding process is also lengthy. After welding is completed, annealing and tempering are required to relieve stress, leading to low production efficiency. Furthermore, the welding quality is heavily dependent on worker skills and is prone to defects such as porosity, slag inclusions, and incomplete penetration, which reduces the product qualification rate.

[0005] 2. On the other hand, the steel welded parts have poor structural strength and rigidity uniformity of the base and end cover, which easily leads to local stress concentration and affects the stability of motor operation.

[0006] 3. Steel welded parts such as the base and end cover are prone to rusting when immersed in water for a long time, which can cause the water circuit of the motor to be blocked and affect the heat dissipation of the motor. Summary of the Invention

[0007] This utility model addresses the aforementioned problems by providing a high-temperature motor internal circulation water-cooled casting system. Its purpose is to simplify the production process, reduce labor and time costs, improve product qualification rates, enhance motor operational stability and lifespan, reduce the impact of external high-temperature environments and forces on the water circuit, ensure unobstructed water flow, guarantee motor operational safety, and reduce motor material and transportation costs.

[0008] To solve the above problems, the technical solution provided by this utility model is as follows:

[0009] A high-temperature motor internal circulation water-cooled casting system includes a motor rotor, a front water-cooled end cover, a plug, a water passage hole, a sealing gasket, a water inlet, a frame, a stator, a rear water-cooled end cover, a bearing, a water outlet, a vent hole in the front water-cooled end cover, a vent hole in the rear water-cooled end cover, a vent hole in the frame, and a water distribution plate in the frame, wherein:

[0010] The motor rotor is supported by the bearings; the bearings are installed inside the bearing chambers of the front and rear water-cooled end covers; the front and rear water-cooled end covers are connected to the frame via a stop fit; the sealing gaskets are respectively installed in the end face grooves of the front and rear water-cooled end covers; the water passage is the water connection channel between the front and rear water-cooled end covers and the frame; the water inlet is the inlet for the cooling medium water to enter the front water-cooled end cover; the water outlet is the outlet for the cooling medium water after carrying away heat from the rear water-cooled end cover; the stator is installed in the inner cavity of the frame and supported; the front water-cooled end cover, the rear ... The base and the rear water-cooled end cover are integral structures cast together. The front water-cooled end cover has multiple vent holes. The base has multiple vent holes. The rear water-cooled end cover has multiple vent holes. The vent holes of the front water-cooled end cover, the base, and the rear water-cooled end cover are used to promptly discharge air from the water chamber and gases generated during the smelting process. The base water distribution plate is a water flow guiding channel inside the base. The plug is assembled into the vent holes of the front water-cooled end cover after casting. The base and the rear water-cooled end cover are solidified using a horizontal casting process.

[0011] Preferably, the base is made of gray cast iron.

[0012] Preferably, both the front water-cooled end cap and the rear water-cooled end cap are made of ductile iron.

[0013] Preferably, the exhaust holes of the front water-cooled end cap are arranged in the 0°, 120° and 240° directions on the circumferential surface of the front water-cooled end cap; the exhaust holes of the rear water-cooled end cap are arranged in the 0°, 120° and 240° directions on the circumferential surface of the rear water-cooled end cap.

[0014] Preferably, the base has three exhaust holes, which are evenly distributed along the horizontal direction of the base.

[0015] Preferably, the sealing gasket is made of silicone material with a temperature resistance range of -60℃ to 200℃; the sealing gasket is used to prevent water leakage when the cooling medium water passes through the water passage.

[0016] Preferably, the base water distribution plate is arranged at a 45° angle to the inner cavity of the base, and the base water distribution plate is used to enhance the mechanical strength of the base and optimize the flow of cooling water.

[0017] Preferably, the water distribution plates on the base are evenly and alternately distributed from the water inlet to the water outlet.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] 1. Since the base and end cap of this utility model are produced by casting process, compared with welding process, the production process is simplified and the input of manpower and time costs is reduced.

[0020] 2. Because the casting process adopted in this utility model has high product quality stability and is not affected by fluctuations in the skill level of operators, the product qualification rate is improved.

[0021] 3. Because the castings used in this invention can better withstand various forces during motor operation compared to steel welded parts, and have better shock absorption, the stability and lifespan of the motor operation are improved.

[0022] 4. Since the base and water-cooled end cover of this utility model are connected through a water passage hole, without the need for an external hose, the impact of external high temperature environment and external force on the water circuit is reduced.

[0023] 5. Because this utility model uses cast iron parts, which contain a certain amount of silicon, manganese and other elements, a relatively dense oxide film can be formed on its surface, preventing water and oxygen from further contacting the cast iron matrix, thereby delaying the corrosion process, ensuring smooth water flow, and ensuring the safe operation of the motor.

[0024] 6. Since the density of the gray cast iron material selected in this utility model is lower than that of steel, and the casting structure design is more reasonable, the motor is lighter, which can effectively avoid the material waste in the cutting process of steel welded parts in the prior art, and effectively reduce the material cost and transportation cost of the motor. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the high-temperature motor internal circulating water-cooled casting system according to a specific embodiment of the present invention;

[0026] Figure 2a This is a schematic cross-sectional view of the front water-cooled end cap of a specific embodiment of the present utility model;

[0027] Figure 2b This is a schematic cross-sectional view of the rear water-cooled end cap of a specific embodiment of the present utility model.

[0028] Figure 3 This is a schematic diagram of the base structure of a specific embodiment of the present utility model;

[0029] Figure 4 This is a plan view of the water channel structure of the base according to a specific embodiment of the present invention.

[0030] The components are: 1. Motor rotor, 2. Front water-cooled end cover, 3. Plug, 4. Water passage hole, 5. Sealing gasket, 6. Water inlet, 7. Frame, 8. Stator, 9. Rear water-cooled end cover, 10. Bearing, 11. Water outlet, 12a. Exhaust hole of front water-cooled end cover, 12b. Exhaust hole of rear water-cooled end cover, 13. Exhaust hole of frame, 14. Water distribution plate of frame. Detailed Implementation

[0031] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0032] This utility model application claims protection for a high-temperature motor internal circulating water-cooled casting system, such as... Figure 1 As shown, it includes a motor rotor 1, a front water-cooled end cover 2, a plug 3, a water passage hole 4, a sealing gasket 5, a water inlet 6, a frame 7, a stator 8, a rear water-cooled end cover 9, a bearing 10, a water outlet 11, a front water-cooled end cover vent hole 12a, a rear water-cooled end cover vent hole 12b, a frame vent hole 13, and a frame water distribution plate 14.

[0033] in:

[0034] The motor rotor 1 is supported by bearings 10; bearings 10 are installed inside the bearing chambers of the front water-cooled end cover 2 and the rear water-cooled end cover 9; the front water-cooled end cover 2 and the rear water-cooled end cover 9 are connected to the frame 7 via a stop fit; sealing gaskets 5 are respectively installed in the end face grooves of the front water-cooled end cover 2 and the rear water-cooled end cover 9; water passage 4 is the water passage connecting the front water-cooled end cover 2 and the rear water-cooled end cover 9 to the frame 7; water inlet 6 is the inlet for the cooling medium water to enter the front water-cooled end cover 2; water outlet 11 is the outlet for the cooling medium water after it carries away heat from the rear water-cooled end cover 9; the stator 8 is installed in the inner cavity of the frame 7 and is supported; the front water-cooled end cover 2, the frame 7, and the rear water-cooled end cover 9 are respectively cast... The machine base 7 is an integral structure; the front water-cooled end cover 2 is provided with multiple front water-cooled end cover vent holes 12a; the machine base 7 is provided with multiple machine base vent holes 13; the rear water-cooled end cover 9 is provided with multiple rear water-cooled end cover vent holes 12b; the front water-cooled end cover vent holes 12a, machine base vent holes 13, and rear water-cooled end cover vent holes 12b are respectively used to timely discharge air in the water cavity and gas generated during the melting process; the machine base water distribution plate 14 is a water flow guiding channel inside the machine base 7; the plug 3 is assembled on the front water-cooled end cover vent holes 12a), rear water-cooled end cover vent holes 12b, and machine base vent holes 13 after casting is completed, and is used to prevent the cooling medium water from flowing out from each vent hole.

[0035] It should be noted that the front water-cooled end cover 2, the base 7, and the rear water-cooled end cover 9 are solidified using a horizontal casting process. The overall quality of the castings is ensured by designing appropriate venting holes in the circumferential direction of the base and end covers.

[0036] It should be further noted that the base 7 is made of gray cast iron. Gray cast iron has good casting properties, which can be used to manufacture complex and high-precision base 7 structures through casting processes. In addition, gray cast iron has good vibration damping properties, which can effectively reduce vibration and noise during motor operation.

[0037] It should be further noted that both the front water-cooled end cover 2 and the rear water-cooled end cover 9 are made of ductile iron. Ductile iron has high strength, toughness and wear resistance, and can withstand the large axial and radial forces generated during motor operation, ensuring the stability and reliability of the connection between the front water-cooled end cover 2, the rear water-cooled end cover 9 and the base 7.

[0038] It should be further explained that the front water-cooled end cover 2, the rear water-cooled end cover 9 and the machine base 7 are connected by water passage holes 4 to ensure smooth flow of cooling water; the three together form an internal circulation water-cooled casting system, which can prevent the high temperature environment of the continuous casting machine from radiating heat to the motor body and can also carry away the heat generated by the bearing 10 and stator 8 during the operation of the motor through cooling water.

[0039] It should be noted that, as Figure 2a , Figure 2b , Figure 3 As shown, the exhaust holes 12a of the front water-cooled end cover are arranged in the 0°, 120° and 240° directions on the circumferential surface of the front water-cooled end cover 2; the exhaust holes 12b of the rear water-cooled end cover are arranged in the 0°, 120° and 240° directions on the circumferential surface of the rear water-cooled end cover 9. There are 3 exhaust holes 13 on the base, which are evenly distributed along the horizontal direction of the base 7.

[0040] It should be further explained that the exhaust holes 12a, 13, and 12b of the front water-cooled end cover, the machine base, and the rear water-cooled end cover make the molten metal filling process during casting more stable, effectively reducing casting defects such as porosity and slag inclusions, ensuring the structural integrity of the machine base 7, the front water-cooled end cover 2, and the rear water-cooled end cover 9, and preventing water leakage or seepage.

[0041] It should be noted that the sealing gasket 5 is made of silicone and has a temperature resistance range of -60℃ to 200℃; the sealing gasket 5 is used to prevent water leakage when the cooling medium water passes through the water passage 4.

[0042] It should be noted that the base water distribution plate 14 is arranged at a 45° angle within the inner cavity of the base 7; there are four base water distribution plates 14; the base water distribution plates 14 are used to enhance the mechanical strength of the base 7 and optimize the flow of cooling water, thereby improving the cooling efficiency of the stator and increasing the heat exchange efficiency.

[0043] It needs to be further explained that, such as Figure 4 As shown, the water distribution plate 14 of the base is evenly and alternately distributed from the water inlet 6 to the water outlet 11 to control the water flow direction inside the base 7. The cooling medium water enters the inner cavity of the front water-cooled end cover 2 through the water inlet 6, and then enters the inner cavity of the base 7 through the water passage 4 above the front water-cooled end cover 2; through the drainage of the base water distribution plate 14, it enters the inner cavity of the rear water-cooled end cover 9 through the water passage 4 below the base 7, and finally flows out from the water outlet 11 above the rear water-cooled end cover 9; the cooling medium water circulates inside the motor from beginning to end, thus forming an internal circulation water-cooled casting system, which not only blocks the heat radiation of the external high temperature environment to the motor body, but also achieves cooling of the bearings and stator, significantly extending the service life of the motor.

[0044] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the present invention is in a state with fewer features than all of the disclosed individual embodiments. Therefore, the appended claims are hereby clearly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the present invention.

[0045] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0046] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-temperature motor internal circulating water-cooled casting system, characterized in that: Includes motor rotor (1), front water-cooled end cover (2), plug (3), water passage hole (4), sealing gasket (5), water inlet (6), frame (7), stator (8), rear water-cooled end cover (9), bearing (10), water outlet (11), front water-cooled end cover vent hole (12a), rear water-cooled end cover vent hole (12b), frame vent hole (13), and frame water distribution plate (14), wherein: The motor rotor (1) is supported by the bearing (10); the bearing (10) is installed in the bearing chamber of the front water-cooled end cover (2) and the rear water-cooled end cover (9); the front water-cooled end cover (2) and the rear water-cooled end cover (9) are connected to the base (7) by a stop fit; the sealing gasket (5) is installed in the end face groove of the front water-cooled end cover (2) and the rear water-cooled end cover (9) respectively; the water passage (4) is the water passage between the front water-cooled end cover (2) and the rear water-cooled end cover (9) and the base (7); the water inlet (6) is the inlet for the cooling medium water to enter the front water-cooled end cover (2); the water outlet (11) is the outlet for the cooling medium water after it carries away heat from the rear water-cooled end cover (9); the stator (8) is installed in the inner cavity of the base (7) and is supported; the front water-cooled end cover (2), the base ( 7) The rear water-cooled end cap (9) is an integral structure cast by casting; the front water-cooled end cap (2) is provided with a plurality of front water-cooled end cap vent holes (12a); the machine base (7) is provided with a plurality of machine base vent holes (13); the rear water-cooled end cap (9) is provided with a plurality of rear water-cooled end cap vent holes (12b); the front water-cooled end cap vent holes (12a), the machine base vent holes (13), and the rear water-cooled end cap vent holes (12b) are respectively used to timely discharge the air in the water cavity and the gas generated during the smelting process during the casting process; the machine base water distribution plate (14) is a water flow guiding channel inside the machine base (7); the plug (3) is assembled on the front water-cooled end cap vent holes (12a), the rear water-cooled end cap vent holes (12b), and the machine base vent holes (13) after casting is completed, and is used to prevent the cooling medium water from flowing out from each vent hole.

2. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The front water-cooled end cover (2), the base (7), and the rear water-cooled end cover (9) are solidified and formed by horizontal casting process.

3. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The base (7) is made of gray cast iron.

4. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: Both the front water-cooled end cap (2) and the rear water-cooled end cap (9) are made of ductile iron.

5. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The exhaust holes (12a) of the front water-cooled end cap are arranged around the circumference of the front water-cooled end cap (2) in the 0°, 120° and 240° directions; the exhaust holes (12b) of the rear water-cooled end cap are arranged around the circumference of the rear water-cooled end cap (9) in the 0°, 120° and 240° directions.

6. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The base has three exhaust holes (13), which are distributed at equal intervals along the horizontal direction of the base (7).

7. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The sealing gasket (5) is made of silicone and has a temperature range of -60℃ to 200℃. The sealing gasket (5) is used to prevent water leakage when the cooling medium water passes through the water passage (4).

8. The high-temperature motor internal circulating water-cooled casting system according to claim 1, characterized in that: The base water distribution plate (14) is arranged in the 45° direction of the inner cavity of the base (7). The base water distribution plate (14) is used to enhance the mechanical strength of the base (7) and optimize the flow of cooling water.

9. The high-temperature motor internal circulating water-cooled casting system according to claim 8, characterized in that: The base water distribution plate (14) is evenly and alternately distributed from the water inlet (6) to the water outlet (11).

Images