阅读说明：本技术 一种电机用简易机械密封装置 (Simple mechanical sealing device for motor ) 是由 郭正华 于 2019-11-19 设计创作，主要内容包括：本发明公开了一种电机用简易机械密封装置,包括机壳和主轴,所述机壳的下表面固定安装有底盘,且底盘的一侧外壁开设有溢流口,所述底盘的下表面固定安装有承重壳体,所述机壳的内部开设有空心轨,所述主轴的外表面套接有密封轴套,所述主轴靠近机壳的外表面套接有码盘,且码盘的上表面设置有防水盘,所述主轴靠近码盘的外表面套接有密封连接套,所述承重壳体的内壁顶部固定安装有密封套管,所述承重壳体的内壁底部设置有承重轴承。本发明中,密封装置能对主轴外露的部分与机壳之间进行密封,避免电机内的机油通过间隙向外泄露,可提高主轴活动时电机的密封性,密封结构安装简单,结构新颖,具有很好的实用性。(The invention discloses a simple mechanical sealing device for a motor, which comprises a machine shell and a main shaft, wherein a chassis is fixedly arranged on the lower surface of the machine shell, an overflow port is formed in the outer wall of one side of the chassis, a bearing shell is fixedly arranged on the lower surface of the chassis, a hollow rail is arranged in the machine shell, a sealing shaft sleeve is sleeved on the outer surface of the main shaft, a coded disc is sleeved on the outer surface of the main shaft, which is close to the machine shell, a waterproof disc is arranged on the upper surface of the coded disc, a sealing connecting sleeve is sleeved on the outer surface of the main shaft, which is close to the coded disc, a sealing sleeve is fixedly arranged on the top of the inner wall. According to the invention, the sealing device can seal the exposed part of the main shaft and the shell, so that engine oil in the motor is prevented from leaking outwards through a gap, the sealing property of the motor can be improved when the main shaft moves, and the sealing structure is simple to install, novel in structure and good in practicability.)

1. A simple mechanical sealing device for a motor comprises a machine shell (1) and a main shaft (6), and is characterized in that a chassis (2) is fixedly mounted on the lower surface of the machine shell (1), an overflow port (3) is formed in the outer wall of one side of the chassis (2), a bearing shell (4) is fixedly mounted on the lower surface of the chassis (2), a hollow rail (14) is formed in the machine shell (1), the main shaft (6) is connected with the machine shell (1), the chassis (2) and the bearing shell (4) in a penetrating manner, a sealing shaft sleeve (13) is sleeved on the outer surface of the main shaft (6), the sealing shaft sleeve (13) is arranged in the hollow rail (14), a coded disc (10) is sleeved on the outer surface of the main shaft (6) close to the machine shell (1), a waterproof disc (8) is arranged on the upper surface of the coded disc (10), a sealing connecting sleeve (9) is sleeved on the outer surface of the main shaft (6), the bearing shell is characterized in that a sealing sleeve (7) is fixedly mounted at the top of the inner wall of the bearing shell (4), the sealing sleeve (7) is sleeved on the outer surface of the main shaft (6), and a bearing (15) is arranged at the bottom of the inner wall of the bearing shell (4).

2. The simple mechanical sealing device for the motor is characterized in that a bearing cavity (5) is formed in the bearing shell (4), and the bearing shell (4) is of an I-shaped structure.

3. A simple mechanical sealing device for an electric motor according to claim 1, characterized in that the inner walls of the housing (1) on both sides are provided with stator windings (11).

4. A simple mechanical seal device for an electric motor according to claim 3, characterized in that the two sets of stator windings (11) are provided with rotors (12) on the side close to the hollow rail (14), and the two sets of stator windings (11) and the two sets of rotors (12) are arranged symmetrically around the hollow rail (14).

5. The simple mechanical seal device for motor according to claim 1, wherein the hollow rail (14) is disposed at the inner center of the housing (1), and the housing (1) is made of cast steel.

6. The simple mechanical sealing device for the motor is characterized in that an overflow cavity (16) is formed in the chassis (2) close to the overflow port (3).

Technical Field

The invention relates to the technical field of mechanical sealing, in particular to a simple mechanical sealing device for a motor.

Background

The mechanical seal is a shaft seal device of rotating machinery, widely applied to equipment such as centrifugal pumps, centrifuges, reaction kettles and compressors, because the transmission shaft runs through inside and outside the equipment, thus, a circumferential gap can exist between the transmission shaft and the equipment, media in the equipment easily leak outwards through the gap, if the pressure in the equipment is lower than the atmospheric pressure, air leaks towards the inside of the equipment, therefore, a sealing device for preventing leakage is necessary, when the traditional mechanical sealing device is used, the vertical motor can bear longitudinal pressure, the pressure can not be buffered to easily cause the motor to be damaged, the sealing structure of the motor is complex, the economic cost is high, the installation is inconvenient, meanwhile, the sealing effect on the position where the transmission shaft is exposed outside and is in a penetrating connection mode is poor, and the sealing effect on the whole motor is reduced.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a simple mechanical sealing device for a motor.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a simple and easy mechanical seal device for motor, includes casing and main shaft, the lower fixed surface of casing installs the chassis, and one side outer wall on chassis has seted up the overflow mouth, the lower fixed surface on chassis has the bearing casing, the inside of casing is seted up empty rail, the main shaft all with casing, chassis and bearing casing through connection, the surface of main shaft has cup jointed sealed axle sleeve, and sealed axle sleeve sets up the inside at empty rail, the main shaft has cup jointed the code wheel near the surface of casing, and the upper surface of code wheel is provided with waterproof dish, the surface that the main shaft is close to the code wheel has cup jointed sealed adapter sleeve, the inner wall top fixed mounting of bearing casing has sealed sleeve pipe, and sealed sleeve pipe cup joints the surface at the main shaft, the inner wall bottom of bearing casing is provided with the bearing.

Preferably, a bearing cavity is formed in the bearing shell, and the bearing shell is of an I-shaped structure.

Preferably, the inner walls of the two sides of the casing are provided with stator windings.

Preferably, rotors are arranged on one sides, close to the hollow rails, of the two groups of stator windings, and the two groups of stator windings and the two groups of rotors are symmetrically arranged by taking the hollow rails as centers.

Preferably, the hollow rail is disposed at an inner center position of the housing, and the housing is made of cast steel.

Preferably, an overflow cavity is formed in the inner part of the chassis at a position close to the overflow port.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the sealing connecting sleeve and the sealing shaft sleeve are arranged, so that the part of the main shaft exposed out of the machine shell can be sealed, the engine oil in the motor is prevented from leaking outwards through a gap, and meanwhile, the movable range of the main shaft is sealed, so that the main shaft is convenient to install and disassemble;

2. according to the invention, the motor can be conveniently placed by arranging the bearing shell, the bearing and the sealing sleeve, and meanwhile, the bottom of the motor is supported when the motor runs, so that the main shaft and the bearing shell can be sealed, the sealing property of the motor when the whole main shaft moves is improved, and the sealing structure is simple to install and has a better effect;

to sum up, sealing device can seal between exposed part of main shaft and the casing, avoids the machine oil in the motor to outwards reveal through the clearance, can improve the leakproofness of motor when whole main shaft activity, and seal structure installation is simple and the effect is better, and novel structure has fine practicality.

Drawings

Fig. 1 is a schematic overall structure diagram of a simple mechanical sealing device for a motor according to the present invention;

fig. 2 is a partial view of a simple mechanical sealing device for a motor according to the present invention.

In the figure: 1 casing, 2 chassis, 3 overflow ports, 4 bearing shells, 5 bearing cavities, 6 main shafts, 7 sealing sleeves, 8 waterproof disks, 9 sealing connecting sleeves, 10 coded disks, 11 stator windings, 12 rotors, 13 sealing shaft sleeves, 14 and 15 bearing bearings and 16 overflow cavities.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a simple mechanical sealing device for a motor comprises a housing 1 and a main shaft 6, a chassis 2 is fixedly arranged on the lower surface of the housing 1, an overflow port 3 is arranged on the outer wall of one side of the chassis 2, a bearing shell 4 is fixedly arranged on the lower surface of the chassis 2, a hollow rail 14 is arranged in the casing 1, the main shaft 6 is connected with the casing 1, the chassis 2 and the bearing shell 4 in a penetrating way, a sealing shaft sleeve 13 is sleeved on the outer surface of the main shaft 6, and the sealing shaft sleeve 13 is arranged inside the hollow rail 14, the coded disc 10 is sleeved on the outer surface of the main shaft 6 close to the machine shell 1, and the upper surface of the coded disc 10 is provided with a waterproof disc 8, the outer surface of the main shaft 6 close to the coded disc 10 is sleeved with a sealing connecting sleeve 9, the top of the inner wall of the bearing shell 4 is fixedly provided with a sealing sleeve 7, and the sealing sleeve 7 is sleeved on the outer surface of the main shaft 6, and the bottom of the inner wall of the bearing shell 4 is provided with a bearing 15.

Bearing chamber 5 has been seted up to the inside of bearing housing 4, bearing housing 4 is the I shape structure, the both sides inner wall of casing 1 all is provided with stator winding 11, one side that two sets of stator winding 11 are close to hollow rail 14 all is provided with rotor 12, two sets of stator winding 11 and two sets of rotors 12 all use hollow rail 14 to set up as central symmetry, hollow rail 14 sets up the inside central point at casing 1 and puts, casing 1 is the cast steel material, overflow chamber 16 has been seted up to the inside position that is close to overflow mouth 3 of chassis 2.

The working principle is as follows: the machine shell 1, the chassis 2 and the bearing shell 4 form a main body frame of the motor, the code disc 10 is used for measuring the rotating speed of the motor, the waterproof disc 8 plays a role in protecting the code disc 10, the stator winding 11 and the rotor 12 drive the main shaft 6 to operate, the hollow rail 14 provides a space for the installation and the activity of the main shaft 6, excessive engine oil flows out through the overflow port 3 through the overflow cavity 16, the sealing connecting sleeve 9 seals the part exposed out of the main shaft 6 and the machine shell 1, the engine oil in the motor is prevented from leaking outwards through a gap, meanwhile, the sealing sleeve 13 seals the activity range of the main shaft 6, the main shaft 6 is convenient to install and disassemble, the bearing shell 4 is convenient to place the motor, the bearing 15 supports the bottom of the motor when the motor operates, the sealing sleeve 7 seals the position between the main shaft 6 and the bearing shell 4, and the sealing performance of the motor when the bearing cavity 5 and the whole, the sealing structure is simple to install and good in effect, the sealing device can seal the exposed part of the main shaft 6 and the shell 1, engine oil in the motor is prevented from leaking outwards through a gap, the sealing performance of the motor during the movement of the whole main shaft 6 can be improved, and the sealing structure is simple to install, good in effect, novel in structure and good in practicability.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.