Motor with good waterproof performance

Abstract

The utility model relates to the technical field of motors, in particular to a motor with good waterproof performance, which comprises a casing, a front end cover and a rear end cover, the front end cover and the rear end cover are respectively positioned at the left end and the right end of the casing, and the circumferential surfaces of the front end cover, the rear end cover and the casing are fixedly connected with flange plates. The inner wall of the front end cover and the inner wall of the rear end cover are both fixedly connected with fixing frames and inner sleeves, the fixing frames are located in the inner sleeves, the interiors of the two fixing frames are both fixedly connected with bearings, the circumferential face of each inner sleeve is provided with two second sealing grooves, and the interiors of the multiple second sealing grooves are both fixedly provided with sealing rings. The front end cover and the rear end cover are each internally provided with two first sealing grooves matched with the sealing rings. According to the utility model, the sealing performance between the front end cover and the casing and between the rear end cover and the casing can be improved, and external rainwater is not easy to enter the casing along the joints of the front end cover and the casing as well as between the rear end cover and the casing in rainy days, so that the waterproof effect of the whole motor is improved, and the motor is not easy to damage due to water inflow.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor with good waterproof performance. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machines.

[0003] The existing motor includes a casing, a front cover, a rear cover, a rotating shaft, a stator and a rotor, wherein the front cover and the rear cover are fixedly installed on the left and right sides of the casing respectively by multiple bolts. When facing rainy weather, rainwater from the outside can easily enter the casing along the connection between the front cover and the rear cover and the casing, which can easily cause damage to the motor. Therefore, it is necessary to design a motor with good waterproof performance. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a motor with good waterproof performance.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motor with good waterproof performance, including a casing, a front end cover and a rear end cover, wherein a stator, a rotor and a rotating shaft are installed inside the casing, and the rotor is sleeved on the circumferential surface of the rotating shaft, the rotor is located inside the stator, the front end cover and the rear end cover are respectively located at the left and right ends of the casing, the front end cover, the rear end cover and the circumferential surface of the casing are fixedly connected with flanges, and the two flanges are connected by bolts, the inner walls of the front end cover and the rear end cover are fixedly connected with a fixing frame and an inner sleeve, the fixing frame is located in the inner sleeve, the interiors of the two fixing frames are fixedly connected with bearings, the rotating shaft passes through the two bearings and is rotatably connected to the two bearings, the circumferential surfaces of the two inner sleeves are each provided with two sealing grooves 2, and sealing rings are fixedly installed inside the multiple sealing grooves, and two sealing grooves 1 that match the sealing rings are each provided inside the front end cover and the rear end cover.

[0006] Furthermore, the ends of the front cover and the rear cover that are away from each other are fixedly connected to fixed sleeves, and oil seals are fixedly installed inside the two fixed sleeves. The rotating shaft passes through the two oil seals and the fixed sleeves and fits tightly with the two oil seals.

[0007] Furthermore, a second sealing gasket is installed at one end of the two bearings away from each other, and the two second sealing gaskets are tightly fitted with the front cover, the rear cover and the rotating shaft respectively.

[0008] Furthermore, an installation groove is formed on one end surface of the two fixing frames that are away from each other. A first sealing gasket is adhered to the inside of the installation groove by glue, and the first sealing gasket is tightly fitted to the rotating shaft.

[0009] Furthermore, a protective shell is threadedly connected to the circumferential surface of the right fixing sleeve, and the protective shell is located at the right end of the front end cover. A waterproof gasket is installed inside the protective shell, and the waterproof gasket fits tightly with the fixing sleeve and the protective shell. The right end faces of the protective shell and the waterproof gasket are both provided with through holes for the rotating shaft to pass through, and the waterproof gasket fits tightly with the rotating shaft.

[0010] Furthermore, the maximum diameter of the inner sleeve matches the inner diameters of the front end cover and the rear end cover, and the inner sleeve extends out of the front end cover and the rear end cover and into the casing.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the existing technology, this motor with good waterproof performance, through the mutual cooperation of the flange, liner, sealing groove 1, sealing groove 2 and sealing ring, after the front cover and the rear cover are fixedly installed at the left and right ends of the casing, the liner is simultaneously extended into the casing, and multiple sealing rings are respectively embedded in multiple sealing grooves 1. At this time, the liner can block the connection between the front cover and the rear cover and the casing, and is sealed by the sealing ring, thereby improving the sealing between the front cover and the rear cover and the casing. When encountering rainy weather, external rainwater is not easy to enter the casing along the connection between the front cover and the rear cover and the casing, thereby improving the waterproof effect of the entire motor and making the motor less likely to be damaged by water ingress.

[0013] Compared with the existing technology, this motor with good waterproof performance can improve the sealing effect between the rotating shaft and the front cover and the rear cover through the mutual cooperation of the oil seal, waterproof gasket, protective shell, second sealing gasket and first sealing gasket. External rainwater is not easy to enter along the connection between the rotating shaft and the front cover and the rear cover, thereby improving the waterproof effect of the entire motor and making the motor less likely to be damaged by water ingress. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a motor with good waterproof performance proposed by the utility model;

[0015] Figure 2 This is a structural diagram of a motor with good waterproof performance proposed by the utility model after the main view of the partial section;

[0016] Figure 3 A motor with good waterproof performance proposed by the utility model Figure 2 Schematic diagram of the enlarged structure of A;

[0017] Figure 4 A motor with good waterproof performance proposed by the utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0018] Legend:

[0019] 1. Casing; 2. Front cover; 3. Rear cover; 4. Rotating shaft; 5. Protective shell; 6. Flange; 7. Stator; 8. Rotor; 9. Inner sleeve; 10. Fixed sleeve; 11. Waterproof gasket; 12. Oil seal; 13. Fixed bracket; 14. First sealing gasket; 15. Bearing; 16. Second sealing gasket; 17. Sealing ring; 18. Sealing groove 1; 19. Sealing groove 2. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and specific embodiments to facilitate understanding of the present invention. The methods used in the present invention are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercially available products unless otherwise specified.

[0021] Reference Figure 1-4 The present invention provides a motor with good waterproof performance, including a housing 1, a front cover 2, and a rear cover 3. A stator 7, a rotor 8, and a rotating shaft 4 are installed inside the housing 1, and the rotor 8 is sleeved on the circumferential surface of the rotating shaft 4. The rotor 8 is located inside the stator 7. The front cover 2 and the rear cover 3 are respectively located at the left and right ends of the housing 1. The front cover 2, the rear cover 3, and the circumferential surface of the housing 1 are fixedly connected to flanges 6, and the two flanges 6 are connected by bolts. The inner walls of the front cover 2 and the rear cover 3 are fixedly connected to a fixing frame 13 and an inner sleeve 9. The fixing frame 13 is located inside the inner sleeve 9. The interiors of the two fixing frames 13 are fixedly connected to bearings 15. The rotating shaft 4 passes through the two bearings 15 and is rotatably connected to the two bearings 15. The circumferential surfaces of the two inner sleeves 9 are each provided with two sealing grooves 19, and a sealing ring 17 is fixedly installed inside the multiple sealing grooves. The interiors of the front cover 2 and the rear cover 3 are each provided with two sealing grooves 18 that cooperate with the sealing ring 17.

[0022] During operation, the utility model can improve the sealing between the front cover 2 and the rear cover 3 and the casing 1. When encountering rainy weather, external rainwater is not easy to enter the casing 1 along the connection between the front cover 2 and the rear cover 3 and the casing 1, thereby improving the waterproof effect of the entire motor and making the motor less likely to be damaged by water ingress.

[0023] The ends of the front and rear covers 2 and 3 facing away from each other are fixedly connected to a fixing sleeve 10. Oil seals 12 are fixedly installed inside the two fixing sleeves 10. The rotating shaft 4 passes through the two oil seals 12 and the fixing sleeves 10 and fits tightly with the two oil seals 12. A protective shell 5 is threadedly connected to the circumferential surface of the right fixing sleeve 10. The protective shell 5 is located at the right end of the front cover 2. A waterproof gasket 11 is installed inside the protective shell 5, and the waterproof gasket 11 fits tightly with the fixing sleeve 10 and the protective shell 5. The right end surfaces of the protective shell 5 and the waterproof gasket 11 each have a through hole for the rotating shaft 4 to pass through, and the waterproof gasket 11 fits tightly with the rotating shaft 4. A second sealing gasket 16 is installed at the ends of the two bearings 15 facing away from each other. The two second sealing gaskets 16 fit tightly with the front and rear covers 2 and 3 and the rotating shaft 4 respectively. The ends of the two fixing brackets 13 facing away from each other each have a mounting groove. A first sealing gasket 14 is glued to the inside of the mounting groove and fits tightly with the rotating shaft 4. The maximum diameter of the inner sleeve 9 matches the inner diameters of the front cover 2 and the rear cover 3 , and the inner sleeve 9 extends out of the front cover 2 and the rear cover 3 and into the housing 1 .

[0024] During operation, the oil seal 12, the waterproof gasket 11, the protective shell 5, the second sealing gasket 16 and the first sealing gasket 14 cooperate with each other to improve the sealing effect between the rotating shaft 4 and the front cover 2 and the rear cover 3, and the outside rainwater is not easy to enter along the connection between the rotating shaft 4 and the front cover 2 and the rear cover 3, thereby improving the waterproof effect of the entire motor and making the motor less likely to be damaged by water ingress.

[0025] Working principle:

[0026] When in use, the oil seal 12 cooperates with the protective shell 5, the waterproof gasket 11, the first sealing gasket 14 and the second sealing gasket 16 to provide multi-layer sealing protection, which can improve the sealing effect between the rotating shaft 4 and the front cover 2 and the rear cover 3. After the front cover 2 and the rear cover 3 are fixedly installed at the left and right ends of the casing 1, the liner is simultaneously extended into the casing 1, and multiple sealing rings 17 are respectively embedded in multiple sealing grooves 18. At this time, the liner can block the connection between the front cover 2 and the rear cover 3 and the casing 1, and is sealed by the sealing ring 17, thereby improving the sealing between the front cover 2 and the rear cover 3 and the casing 1. When encountering rainy weather, external rainwater is not only difficult to enter the casing 1 along the connection between the front cover 2 and the rear cover 3 and the casing 1, but also difficult to enter along the connection between the rotating shaft 4 and the front cover 2 and the rear cover 3, thereby improving the waterproof effect of the entire motor and making the motor less likely to be damaged by water ingress.

[0027] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A motor with good waterproof performance, comprising a housing (1), a front cover (2) and a rear cover (3), characterized in that: The housing (1) is provided with a stator (7), a rotor (8) and a rotating shaft (4), and the rotor (8) is sleeved on the circumferential surface of the rotating shaft (4). The rotor (8) is located inside the stator (7). The front end cover (2) and the rear end cover (3) are respectively located at the left and right ends of the housing (1). The front end cover (2), the rear end cover (3) and the circumferential surface of the housing (1) are fixedly connected with flanges (6). The two flanges (6) are connected by bolts. The inner walls of the front end cover (2) and the rear end cover (3) are fixedly connected with flanges (6). A fixing frame (13) and an inner sleeve (9), wherein the fixing frame (13) is located inside the inner sleeve (9), and bearings (15) are fixedly connected to the interior of the two fixing frames (13), and the rotating shaft (4) passes through the two bearings (15) and is rotatably connected to the two bearings (15). The circumferential surfaces of the two inner sleeves (9) are each provided with two sealing grooves (19), and sealing rings (17) are fixedly installed inside the plurality of sealing grooves. The front end cover (2) and the rear end cover (3) are each provided with two sealing grooves (18) that match the sealing rings (17); The front end cover (2) and the rear end cover (3) are fixedly connected to a fixed sleeve (10) at one end away from each other, and an oil seal (12) is fixedly installed inside the two fixed sleeves (10). The rotating shaft (4) passes through the two oil seals (12) and the fixed sleeves (10) and is tightly fitted with the two oil seals (12). A protective shell (5) is threadedly connected to the circumferential surface of the right fixing sleeve (10). The protective shell (5) is located at the right end of the front cover (2). A waterproof gasket (11) is installed inside the protective shell (5), and the waterproof gasket (11) is tightly fitted with the fixing sleeve (10) and the protective shell (5). The right end surfaces of the protective shell (5) and the waterproof gasket (11) are both provided with a through hole for the rotation shaft (4) to pass through, and the waterproof gasket (11) is tightly fitted with the rotation shaft (4).

2. A motor with good waterproof performance according to claim 1, characterized in that: A second sealing gasket (16) is installed at each end of the two bearings (15) that are away from each other. The two second sealing gaskets (16) are respectively tightly fitted with the front cover (2), the rear cover (3) and the rotating shaft (4).

3. The motor with good waterproof performance according to claim 1, characterized in that: The end surfaces of the two fixing frames (13) that are away from each other are both provided with mounting grooves, and a first sealing gasket (14) is adhered inside the mounting groove by glue, and the first sealing gasket (14) is tightly fitted to the rotating shaft (4).

4. The motor with good waterproof performance according to claim 1, characterized in that: The maximum diameter of the inner sleeve (9) matches the inner diameters of the front end cover (2) and the rear end cover (3), and the inner sleeve (9) extends beyond the front end cover (2) and the rear end cover (3) and into the housing (1).

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