Outward-rotating waterproof motor

Abstract

The utility model discloses an external rotation waterproof motor, which comprises a motor body and a shell, the tail part of the motor body is fixedly connected with a tail shell, the outer surface of the tail shell is provided with a first sealing groove used for installing a first sealing ring, the end surface of the tail part of the tail shell is provided with a second sealing groove used for installing a second sealing ring, and the tail part of the tail shell is fixedly connected with a plug; the shell is sleeved on the motor body and the tail shell, the shell is fixedly connected with the tail shell, an opening for a motor steel shaft of the motor body to extend out is arranged at the front end of the shell, and an oil seal sleeved on the motor steel shaft is arranged at the position of the opening. According to the outward-rotating waterproof motor provided by the embodiment of the invention, the shell is additionally arranged outside the motor body, the tail shell is additionally arranged at the tail part, and the first sealing ring, the second sealing ring and the oil seal are combined, so that the whole motor can be in a sealed state, the IP protection grade of the motor is improved, the use scene of the motor is expanded, and the service life of the motor is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and particularly relates to an outer-rotation waterproof electric machine. BACKGROUND

[0002] In the prior art, the IP protection level of the outer-rotation electric machine is generally low, and even lacks clear protection level identification, which leads to the fact that the outer-rotation electric machine cannot adapt to the use requirements in special environments such as underwater and rainy days. Therefore, how to significantly improve the IP protection level of the outer-rotation electric machine through technical improvement so that the outer-rotation electric machine can meet the use requirements in harsh environments such as underwater has become a subject to be studied by the technical personnel in the field. CONTENT OF THE INVENTION

[0003] One of the purposes of the application is to provide an outer-rotation waterproof electric machine, which increases a shell outside the electric machine body and guarantees the IP level of the whole electric machine through cooperation of some sealing members, so as to solve the above technical problems.

[0004] To achieve the above application purposes, the technical scheme adopted by the application is as follows:

[0005] The outer-rotation waterproof electric machine provided by the application includes an electric machine body and a shell, the tail part of the electric machine body is fixedly connected with a tail shell, the outer surface of the tail shell is provided with a first sealing groove for installing a first sealing ring, the tail end surface of the tail shell is provided with a second sealing groove for installing a second sealing ring, and the tail part of the tail shell is fixedly connected with a plug.

[0006] The shell is sleeved on the electric machine body and the tail shell, the shell and the tail shell are fixedly connected, the front end of the shell is provided with an opening through which a motor steel shaft of the electric machine body extends out, and the opening position is provided with an oil seal which is sleeved and installed on the motor steel shaft.

[0007] In some embodiments, a bearing cooperating with the motor steel shaft is further arranged inside the shell.

[0008] In some embodiments, the shell and the tail shell are fixedly connected through a first screw.

[0009] In some embodiments, the tail shell is fixedly connected with the tail part of the electric machine body through a machine screw, and the machine screw is axially arranged.

[0010] In some embodiments, the plug is fixedly connected with the tail part of the tail shell through a second screw.

[0011] Compared with the prior art, the beneficial effects of the embodiments of the application are as follows:

[0012] The outer rotation waterproof motor provided by the embodiment of the application can be in a sealed state by adding a shell outside the motor body and a tail shell at the tail of the motor body, in combination with a first sealing ring, a second sealing ring and an oil seal, so as to improve the IP protection level of the motor, and expand the use scene and service life of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0014] Figure 1 A structure schematic diagram of an outer rotation waterproof motor provided by the embodiment of the application is shown;

[0015] Figure 2 An exploded view of an outer rotation waterproof motor provided by the embodiment of the application is shown;

[0016] Figure 3 A sectional view of an outer rotation waterproof motor provided by the embodiment of the application is shown;

[0017] Figure 4 A structure schematic diagram of a motor body provided by the embodiment of the application is shown;

[0018] Figure 5 A left structure schematic diagram of a tail shell provided by the embodiment of the application is shown;

[0019] Figure 6 A right structure schematic diagram of a tail shell provided by the embodiment of the application is shown.

[0020] FIGURE DESCRIPTION:

[0021] 11, oil seal; 12, shell; 13, first screw; 14, bearing; 15, motor body; 151, motor steel shaft; 16, machine screw; 17, tail shell; 171, first fixing hole; 172, first sealing groove; 173, second fixing hole; 174, second sealing groove; 18, second sealing ring; 19, plug; 20, first sealing ring; 21, second screw. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects of the application more clearly understood, the application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

[0023] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0025] In order to illustrate the technical solutions described in the present application, the following will be described by specific embodiments.

[0026] Please refer to Figures 1 to 6 As shown in the figure, the present application provides an outer rotation waterproof motor, which comprises a motor body 15 and a shell 12. The tail of the motor body 15 is fixedly connected with a tail shell 17. The outer surface of the tail shell 17 is provided with a first sealing groove 172 for installing a first sealing ring 20. The tail end surface of the tail shell 17 is provided with a second sealing groove 174 for installing a second sealing ring 18. The tail of the tail shell 17 is fixedly connected with a plug 19.

[0027] The shell 12 is sleeved on the motor body 15 and the tail shell 17. The shell 12 and the tail shell 17 are fixedly connected. The front end of the shell 12 is provided with an opening for the motor steel shaft 151 of the motor body 15 to extend out. The opening position is provided with an oil seal 11 which is sleeved and installed on the motor steel shaft 151.

[0028] In some embodiments, a bearing 14 cooperating with the motor steel shaft 151 is further arranged inside the shell 12.

[0029] In some embodiments, the shell 12 and the tail shell 17 are fixedly connected by a first screw 13.

[0030] In some embodiments, the tail shell 17 is fixedly connected with the tail of the motor body 15 by a machine screw 16. The machine screw 16 is axially arranged through the first fixing hole 171.

[0031] In some embodiments, the plug 19 is fixedly connected with the tail of the tail shell 17 by penetrating the second fixing hole 173 through a second screw 21.

[0032] In some embodiments, the sealing ring and the screw mentioned above are made of corrosion-resistant materials, which can improve the service life of the entire structure.

[0033] In summary, the waterproof principle of the outer rotation waterproof motor provided by the embodiments of the application is as follows:

[0034] (1) The front end of the shell 12 is provided with a sealing oil seal 11, which can effectively prevent water from entering the inside of the motor after being matched with the motor steel shaft 151. The shell 12 is internally provided with a bearing 14, which ensures that the shell 12 is concentric with the motor after being matched with the motor steel shaft 151.

[0035] (2) The tail shell 17 is fixed at the tail of the motor body 15 through a hex socket cap screw 16. The side wall of the tail shell 17 is provided with a first sealing groove 172 on the outer surface, which is used for installing a first sealing ring 20. After the first sealing ring 20 is installed, the tail shell 17 is assembled with the shell 12 to ensure the sealing between the two. Then, the tail shell 17 and the shell 12 are fixed together through the screw holes in the side wall by using the first screw 13, so that the entire structure is fixed.

[0036] (3) The tail end surface of the tail shell 17 is provided with a second sealing groove 174, which is used for installing a second sealing ring 18. The plug 19 is fixed on the tail shell 17 through the second fixing hole 173 and the second screw 21.

[0037] (4) Through the above settings, the entire motor is in a sealed state, so as to improve the IP protection level of the motor, expand the use scene and use life of the motor.

[0038] The above-described embodiments are only used to illustrate the technical solutions of the application, rather than limit them. Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features. Such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the protection scope of the application.

Claims

1. An outside-rotating water-proof motor, characterized by, The motor body is fixedly connected with a tail shell at the tail thereof, the outer surface of the tail shell is provided with a first sealing groove for mounting a first sealing ring, the tail end surface of the tail shell is provided with a second sealing groove for mounting a second sealing ring, and the tail of the tail shell is fixedly connected with a plug. The shell is sleeved on the motor body and the tail shell, the shell and the tail shell are fixedly connected, the front end of the shell is provided with an opening for the motor steel shaft of the motor body to extend out, and the opening position is provided with an oil seal which is sleeved and mounted on the motor steel shaft.

2. An externally-rotating, water-proof motor according to claim 1, wherein A bearing which cooperates with the motor steel shaft is further arranged in the shell.

3. An externally-rotating, water-proof motor according to claim 1, wherein The shell and the tail shell are fixedly connected through a first screw.

4. An externally-rotating, water-proof motor according to claim 1, wherein The tail shell is fixedly connected with the tail of the motor body through a machine screw, and the machine screw is axially arranged.

5. An externally-rotating, water-proof motor according to claim 1, wherein The plug is fixedly connected with the tail of the tail shell through a second screw.

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