CN114189088A

CN114189088A - Electric motor car motor seal structure

Info

Publication number: CN114189088A
Application number: CN202111422374.9A
Authority: CN
Inventors: 连长春; 刘绍庆; 杜清洁; 高超; 李祥
Original assignee: Xuzhou Mingzun Electrical And Mechanical Co ltd
Current assignee: Xuzhou Mingzun Electrical And Mechanical Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-15
Anticipated expiration: 2041-11-26
Also published as: CN114189088B

Abstract

The invention discloses a motor sealing structure of an electric vehicle, in particular to the technical field of electric vehicles, the existing sealing structure has poor sealing effect when sealing is carried out, is easy to loosen, is not easy to disassemble, replace and refuel an oil seal, and is not provided with a detection mechanism to detect the sealing property inside the motor, the sealing structure comprises a motor shell, a rotating shaft is arranged at the center of the motor shell, sealing mechanisms are respectively arranged at two ends of the motor shell, each sealing mechanism comprises a plurality of buffer springs, a plurality of clamping jaws are arranged at one ends of the plurality of buffer springs, a first oil seal is clamped in inner rings of the plurality of clamping jaws, a second oil seal is fixedly connected at one end of the first oil seal, a cylinder is arranged on the sealing disc at one side, a piston is arranged in the cylinder in a sliding manner, the clamping jaws are clamped in the outer rings of the first oil seals, and the first oil seals and the second oil seals the contact position of the rotating shaft and the sealing disc by matching with the buffer springs, the tightness of the motor is detected by observing whether the piston is reset.

Description

Electric motor car motor seal structure

Technical Field

The invention relates to the technical field of electric vehicle motors, in particular to a sealing structure of an electric vehicle motor.

Background

The electric vehicle motor refers to a driving motor for an electric vehicle. The form is different according to the use environment and the use frequency. The different types of motors are also characterized differently. The motor of the electric vehicle is generally a permanent magnet direct current motor. The electric vehicle motors are classified according to the electrifying form of the motor, and can be divided into two types, namely a brush motor and a brushless motor; the motor assembly is classified into two categories, namely 'toothed' and 'toothless', according to the mechanical structure of the motor assembly.

1. When the motor of the electric vehicle is used, in order to ensure the sealing property of the motor, a sealing structure is required to be arranged to keep the sealing of the interior of the motor, the sealing effect of the existing sealing structure is poor when the sealing is carried out, an oil seal is easy to loosen after long-time use when the sealing is carried out, and the oil seal is not easy to detach when the oil seal of the motor is replaced or refueled;

2. the existing electric vehicle motor is not provided with a detection mechanism to detect the sealing property inside the motor.

Therefore, the sealing structure of the motor of the electric vehicle is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a motor sealing structure of an electric vehicle, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an electric vehicle motor sealing structure comprises a motor body, wherein the motor body comprises a motor shell, a motor stator is arranged in the middle of the inner ring of the motor shell, a motor rotor is arranged in the inner ring of the motor stator, a rotating shaft is arranged at the center of the motor rotor, sealing mechanisms are arranged at two ends of the motor shell respectively and comprise a sealing disc, a first fixing ring and a third fixing ring are arranged at one end, close to the motor shell, of the sealing disc, a rotating ring is arranged between the first fixing ring and the third fixing ring in a rotating mode, an inner gear ring is arranged in the rotating ring, a fixing disc is arranged at one end, far away from the sealing disc, of the third fixing ring, a plurality of rotating rods distributed in an annular mode are symmetrically arranged on the fixing disc through bearing rotation, a first connecting ring and a second connecting ring are symmetrically arranged between the fixing discs, a plurality of rectangular frames distributed in an annular mode are arranged on the first connecting ring and the second connecting ring in a sliding mode, the fixed plate is installed to the one end that the rectangle frame is close to second go-between centre of a circle department, the one end that the rectangle frame was kept away from to the fixed plate is installed a plurality of buffer spring, a plurality of buffer spring the movable plate is installed to the one end that buffer spring kept away from the fixed plate, the one end that the fixed plate was kept away from to the movable plate is installed a plurality of jack catch, a plurality of jack catch inner circle block has first oil blanket, first oil blanket is close to the one end fixedly connected with second oil blanket of sealed dish, one side install detection mechanism on the sealed dish, detection mechanism is including the drum, the inside slip of drum is equipped with the piston.

Preferably, a fixed ring is installed on the outer ring of the motor shell, a plurality of fixed columns which are distributed in a plurality of annular shapes are installed at two ends of the fixed ring, a plurality of fixed plates are distributed in the outer ring of the sealing disc in an annular shape, fastening screws are inserted into the fixed plates, gaskets are arranged between the fastening screws and the fixed plates, and the fastening screws are inserted into the fixed columns in a threaded manner.

Preferably, the packing ring is installed to the one end that sealed dish is close to the motor casing, the packing ring is installed between motor casing and sealed dish, the one end that the packing ring is close to the motor casing distributes and has the first sealing washer of a plurality of, the first recess of a plurality of, a plurality of has all been seted up at the motor casing both ends inside first sealing washer can block respectively and establish into the first recess of a plurality of.

Preferably, the one end annular distribution that sealed dish is close to the motor casing has the spliced pole of a plurality of symmetry, the symmetry the spliced pole is kept away from the one end of sealed dish and is installed the connecting plate, and the annular distributes the solid fixed ring outer lane fixed connection of connecting plate and third.

Preferably, it rotates through the bearing and is provided with the rotation post on the sealed dish, the one end that the rotation post is close to sealed dish has seted up interior hexagonal hole, the one end that the sealed dish was kept away from to the rotation post is installed first external gear, outer ring gear is installed to the swivel becket outer lane, outer ring gear and first external gear meshing.

Preferably, the second recess has all been seted up to the solid fixed ring of one side that is close to each other of first fixed ring and third, the spacing ring is all installed at the swivel becket both ends, the spacing ring can slide in second recess inside, the solid fixed ring of second is installed to the solid fixed ring of first fixed ring and third inner circle, and does not contact with first fixed ring and third fixed ring, the pivot passes second fixed ring center department, the solid fixed ring of second and fixed disk one side fixed connection of symmetry, the third external gear is installed to the dwang near the one end of sealed dish, the third external gear is installed in the solid fixed ring outer lane of second, and meshes with the internal tooth ring.

Preferably, the pivot passes second go-between center department, the spacing groove of the symmetry that a plurality of annular distributes is all seted up to one side that first go-between and second go-between are close to each other, the spacing of symmetry is all installed to the both sides of rectangle frame symmetry, spacing slides and sets up in the spacing inslot portion, rectangle frame internally mounted has the rack, install the second external gear on the dwang, second external gear and rack toothing.

Preferably, inside spacing section of thick bamboo and the gag lever post of being equipped with of buffer spring, spacing post is installed to gag lever post one end, spacing post and gag lever post one end slide to set up inside spacing section of thick bamboo, spacing section of thick bamboo one end and fixed plate fixed connection, the one end and the movable plate fixed connection of spacing post are kept away from to the gag lever post.

Preferably, first oil blanket and second oil blanket rotate to set up in the axis of rotation, and contact the department with the axis of rotation and fill there is lubricating oil, the second oil blanket sets up in sealed dish center department, a plurality of third recess has been seted up to sealed dish inner circle, a plurality of second sealing washer, a plurality of are installed to second oil blanket outer lane the second sealing washer is blocked respectively and is established inside a plurality of third recess.

Preferably, the drum internally mounted has a plurality of spacing disc, a plurality of spacing disc center department slides and is equipped with the carriage release lever, carriage release lever one end and piston fixed connection, the drum is kept away from sealed dish one end and is seted up the gas pocket, the piston can laminate with the gas pocket, spacing piece is installed to the one end that the piston was kept away from to the carriage release lever.

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

1. according to the invention, the second oil seal is sleeved on the rotating shaft and inserted into the center of the sealing disc, then the rotating ring is rotated, so that the clamping jaws on the rectangular frame are clamped into the outer ring of the first oil seal, and the clamping jaws are matched with the buffer spring to clamp the first oil seal all the time, so that the first oil seal and the second oil seal are prevented from loosening or falling off after long-time use, the contact part of the rotating shaft and the sealing disc can be sealed, the sealing disc is fixed at the end part of the motor shell by using the fastening screw, and the gap between the sealing disc and the motor shell is sealed by using the gasket, so that the interior of the motor is sealed.

2. When the oil seal needs to be replaced or oil is added, the jaw does not clamp the first oil seal any more by rotating the rotating column, the first oil seal and the second oil seal are pushed, the first oil seal and the second oil seal can be taken out, and the oil seal is replaced or oil is added to the contact position of the oil seal and the rotating shaft.

3. When the sealing performance of the motor needs to be detected, the moving rod is pulled to enable the piston to move, when the piston moves to be in contact with the side face of the limiting disc, the limiting sheet is loosened, a period of time is waited, and whether the piston resets or not is checked, so that the sealing performance of the motor is detected.

Drawings

Figure 1 is a schematic view of the general structure of the present invention,

FIG. 2 is a schematic cross-sectional view of the present invention,

figure 3 is a schematic diagram of the explosive structure of the sealing and sealing mechanism of the present invention,

FIG. 4 is an enlarged view of the structure at A in FIG. 2,

FIG. 5 is an enlarged view of the structure at B in FIG. 2,

FIG. 6 is an enlarged view of the structure at C in FIG. 2 according to the present invention,

FIG. 7 is an enlarged view of the structure shown at D in FIG. 2,

FIG. 8 is an enlarged view of the structure at E in FIG. 3 according to the present invention,

figure 9 is an enlarged view of the structure at F of figure 7 according to the present invention,

FIG. 10 is an enlarged view of the structure at G in FIG. 7 according to the present invention.

In the figure: 1. a motor body; 101. a motor housing; 102. fixing the circular ring; 103. fixing a column; 104. a motor stator; 105. a motor rotor; 106. a rotating shaft; 2. a sealing mechanism; 201. sealing the disc; 202. a fixing sheet; 203. a gasket; 204. rotating the column; 205. a first external gear; 206. a first retaining ring; 207. a second retaining ring; 208. connecting columns; 209. a connecting plate; 210. a third fixing ring; 211. a rotating ring; 212. an outer ring gear; 213. an inner gear ring; 214. fixing the disc; 215. a first connecting ring; 216. a second connection ring; 217. rotating the rod; 218. a second external gear; 219. a third external gear; 220. a rectangular frame; 221. a limiting strip; 222. a rack; 223. a fixing plate; 224. a buffer spring; 225. a limiting cylinder; 226. a limiting rod; 227. a limiting column; 228. moving the plate; 229. a claw; 230. a first oil seal; 231. a second oil seal; 3. a detection mechanism; 301. a cylinder; 302. a limiting disc; 303. a travel bar; 304. a piston; 305. a limiting sheet.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-10, the present invention provides a motor sealing structure for an electric vehicle, which includes a motor body 1, the motor body 1 includes a motor casing 101, a motor stator 104 is installed in the middle of an inner ring of the motor casing 101, a motor rotor 105 is installed in the inner ring of the motor stator 104, a rotating shaft 106 is installed in the center of the motor rotor 105, sealing mechanisms 2 are installed at both ends of the motor casing 101, each sealing mechanism 2 includes a sealing disc 201, a first fixing ring 206 and a third fixing ring 210 are installed at one end of the sealing disc 201 close to the motor casing 101, a rotating ring 211 is rotatably installed between the first fixing ring 206 and the third fixing ring 210, an inner toothed ring 213 is installed in the rotating ring 211, a fixing disc 214 is installed at one end of the third fixing ring 210 far from the sealing disc 201, a plurality of rotating bars 217 distributed annularly are rotatably installed on the symmetrical fixing disc 214 through bearings, a first connecting ring 215 and a second connecting ring 216 are installed between the symmetrical fixing discs 214, the first connecting ring 215 and the second connecting ring 216 are provided with a plurality of annularly distributed rectangular frames 220 in a sliding manner, a fixed plate 223 is installed at one end, close to the center of the circle of the second connecting ring 216, of each rectangular frame 220, a plurality of buffer springs 224 are installed at one end, far away from the rectangular frame 220, of each buffer spring 224, a movable plate 228 is installed at one end, far away from the fixed plate 223, of each movable plate 228, a plurality of clamping jaws 229 are installed at one end, far away from the fixed plate 223, of each clamping jaw 229, a first oil seal 230 is clamped in the inner ring of each clamping jaw 229, one end, close to the sealing disc 201, of each first oil seal 230 is fixedly connected with a second oil seal 231, a detection mechanism 3 is installed on the sealing disc 201 on one side, the detection mechanism 3 comprises a cylinder 301, and a piston 304 is arranged inside the cylinder 301 in a sliding manner.

Further, a fixed ring 102 is installed on the outer ring of the motor casing 101, a plurality of fixing columns 103 distributed in an annular shape are installed at two ends of the fixed ring 102, a plurality of fixing pieces 202 are distributed in an annular shape on the outer ring of the sealing disc 201, fastening screws are inserted into the fixing pieces 202, gaskets are arranged between the fastening screws and the fixing pieces 202, the fastening screws are inserted into the fixing columns 103 in a threaded manner, the sealing disc 201 is fixed at the end portion of the motor casing 101 through the fastening screws, a gasket 203 is installed at one end, close to the motor casing 101, of the sealing disc 201, the gasket 203 is installed between the motor casing 101 and the sealing disc 201, a plurality of first sealing rings are distributed at one end, close to the motor casing 101, at two ends of the motor casing 101, a plurality of first grooves are formed in the two ends of the motor casing 101, the plurality of first sealing rings can be respectively clamped into the plurality of first grooves, the first sealing rings on the gasket 203 are clamped into the first grooves on the motor casing 101, the gap between the seal disk 201 and the motor case 101 is sealed.

Further, a plurality of symmetrical connecting columns 208 are annularly distributed at one end, close to the motor casing 101, of the sealing disc 201, a connecting plate 209 is installed at one end, far away from the sealing disc 201, of each symmetrical connecting column 208, the connecting plate 209 is fixedly connected with the outer ring of a third fixing ring 210, the third fixing ring 210 is fixed, a rotating column 204 is arranged on the sealing disc 201 in a rotating mode through a bearing, an inner hexagonal hole is formed at one end, close to the sealing disc 204, of each rotating column 201, a first outer gear 205 is installed at one end, far away from the sealing disc 201, of each rotating column 204, an outer gear ring 212 is installed at the outer ring of each rotating ring 211, the outer gear ring 212 is meshed with the first outer gear 205, the rotating column 204 can drive the rotating rings 211 to rotate, second grooves are formed in one sides, close to each other, of the first fixing rings 206 and the third fixing rings 210, limiting rings are installed at two ends of the rotating rings 211, and can slide in the second grooves, the rotating ring 211 is limited, the second fixing ring 207 is installed on the inner rings of the first fixing ring 206 and the third fixing ring 210 and is not in contact with the first fixing ring 206 and the third fixing ring 210, the rotating shaft 106 penetrates through the center of the second fixing ring 207, the second fixing ring 207 is fixedly connected with one side of the symmetrical fixing disc 214, the third outer gear 219 is installed at one end, close to the sealing disc 201, of the rotating rod 217, the third outer gear 219 is installed on the outer ring of the second fixing ring 207 and is meshed with the inner gear ring 213, and the rotating ring 211 is enabled to rotate to drive the plurality of third outer gears 219 to rotate simultaneously.

Further, the rotating shaft 106 passes through the center of the second connecting ring 216, a plurality of symmetrical limiting grooves distributed in an annular shape are formed in the mutually adjacent sides of the first connecting ring 215 and the second connecting ring 216, symmetrical limiting strips 221 are mounted on the symmetrical two sides of the rectangular frame 220, the limiting strips 221 are slidably disposed in the limiting grooves, a rack 222 is mounted in the rectangular frame 220, a second external gear 218 is mounted on a rotating rod 217, the second external gear 218 is meshed with the rack 222, the rotating rod 217 rotates to drive the rectangular frame 220 to move, a limiting cylinder 225 and a limiting rod 226 are disposed in a buffer spring 224, a limiting column 227 is mounted at one end of the limiting rod 226, one ends of the limiting column 227 and the limiting rod 226 are slidably disposed in the limiting cylinder 225, one end of the limiting cylinder 225 is fixedly connected with the fixing plate 223, one end of the limiting rod 226, which is far away from the limiting column 227, is fixedly connected with the moving plate 228, and the moving plate 228 is supported by the limiting cylinder 225 and the limiting rod 226, the first oil seal 230 and the second oil seal 231 are rotatably arranged on the rotating shaft 106, lubricating oil is filled at the contact part of the first oil seal 230 and the rotating shaft 106, the second oil seal 231 is arranged at the center of the sealing disc 201, a plurality of third grooves are formed in the inner ring of the sealing disc 201, a plurality of second sealing rings are arranged on the outer ring of the second oil seal 231, the plurality of second sealing rings are respectively clamped into the plurality of third grooves, the second sealing rings on the second oil seal 231 are clamped into the third grooves on the sealing disc 201 to fix the second oil seal 231 and seal the gap between the sealing disc 201 and the rotating shaft 106, a plurality of limiting discs 302 are arranged inside the cylinder 301, a moving rod 303 is slidably arranged at the center of the plurality of limiting discs 302, one end of the moving rod 303 is fixedly connected with the piston 304, one end of the cylinder 301, which is far away from the sealing disc 201, is provided with an air hole, and the piston 304 can be attached to the air hole, the end of the moving rod 303 far away from the piston 304 is provided with a limiting piece 305, and the tightness of the motor is detected by moving the piston 304 and then checking whether the piston 304 is reset.

The working principle is as follows: when the invention is used, a second oil seal 231 is sleeved on the rotating shaft 106 and inserted into the center of the sealing disc 201, a second sealing ring on the second oil seal 231 is clamped into a third groove on the sealing disc 201 to fix the second oil seal 231, a fixing sheet 202 on the sealing disc 201 is aligned with a fixing column 103, an inner hexagonal wrench is used for rotating the rotating column 204, so that the rotating column 204 drives a first outer gear 205 to rotate, the first outer gear 205 is meshed with an outer toothed ring 212, so that the outer toothed ring 212 rotates along with the first outer toothed ring, the outer toothed ring 212 rotates to drive a rotating ring 211 to rotate, limit the rotating process of the rotating ring 211 is realized by utilizing limiting rings at two ends of the rotating ring 211 to slide in the second grooves on a first fixing ring 206 and a third fixing ring 210, the rotating ring 211 rotates to drive an inner toothed ring 213 to rotate, the inner toothed ring 213 is meshed with a plurality of third outer gears 219, so that the inner toothed ring 213 rotates to drive a plurality of third outer gears 219 to simultaneously rotate in the same direction, the rotating rod 217 at the center of the third external gear 219 rotates on the fixed disk 214 along with the rotating rod 217, the rotating rod 217 rotates to drive the second external gear 218 thereon to rotate, the second external gear 218 is meshed with the rack 222, so that the second external gear 218 can drive the rack 222 to move, the rectangular frame 220 connected with the rack 222 slides inside the limiting groove on the fixed disk 214 by using the limiting strip 221, so that the rectangular frame 220 can linearly move, the fixing plate 223 on the rectangular frame 220 moves along with the rectangular frame 220, and drives the buffer spring 224 and the moving plate 228 to move, so that the clamping jaws 229 on the moving plate 228 are clamped into the outer ring of the first oil seal 230 to limit the first oil seal 230, the limiting rods 226 slide inside the limiting cylinders 225, and the buffer spring 224 is compressed, so that the clamping jaws 229 can clamp the first oil seal 230 all the time, the first oil seal 230 and the second oil seal 231 are prevented from loosening or falling off after long-time use, and the contact position of the rotating shaft 106 and the sealing disk 201 can be sealed, the sealing disc 201 is fixed at the end of the motor casing 101 by fastening screws, and a first sealing ring on the gasket 203 is clamped in a first groove on the motor casing 101 to seal a gap between the sealing disc 201 and the motor casing 101, so that the interior of the motor is sealed;

after the motor is installed or used for a long time, the sealing performance inside the motor needs to be detected, the limiting sheet 305 is pulled to enable the limiting sheet 305 to drive the moving rod 303 to slide on the limiting disc 302, the moving rod 303 moves to drive the piston 304 to move outwards, when the piston 304 moves to be in contact with the side face of the limiting disc 302, the limiting sheet 305 is loosened, a period of time is waited, whether the piston 304 resets or not is checked, and therefore the sealing performance of the motor is detected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric motor car motor seal structure, includes motor body (1), its characterized in that: the motor comprises a motor body (1) and is characterized in that the motor body (1) comprises a motor shell (101), a motor stator (104) is arranged in the middle of the inner ring of the motor shell (101), a motor rotor (105) is arranged on the inner ring of the motor stator (104), a rotating shaft (106) is arranged at the center of the motor rotor (105), sealing mechanisms (2) are arranged at the two ends of the motor shell (101), each sealing mechanism (2) comprises a sealing disc (201), one end, close to the motor shell (101), of each sealing disc (201) is provided with a first fixing ring (206) and a third fixing ring (210), a rotating ring (211) is arranged between each first fixing ring (206) and the third fixing ring (210) in a rotating mode, an inner gear ring (213) is arranged on the rotating ring (211), one end, far away from the sealing disc (201), of each third fixing ring (210) is provided with a fixing disc (214), and is symmetrical, a plurality of rotating rods (217) distributed in an annular mode are arranged on the fixing disc (214) through bearing rotation, symmetrical first connecting ring (215) and second connecting ring (216) are installed between fixed disk (214), first connecting ring (215) and second connecting ring (216) are provided with rectangular frame (220) distributed in a plurality of annular shapes in a sliding mode, fixed plate (223) is installed at the end, close to the circle center of second connecting ring (216), of rectangular frame (220), a plurality of buffer springs (224) are installed at the end, far away from rectangular frame (220), of fixed plate (223), a plurality of movable plate (228) is installed at the end, far away from fixed plate (223), of movable plate (228) and a plurality of clamping jaws (229) are installed at the end, far away from fixed plate (223), of clamping jaws (229) inner rings are clamped with first oil seals (230), and one end, close to sealing disk (201), of first oil seals (230) is fixedly connected with second oil seals (231), one side install detection mechanism (3) on sealed dish (201), detection mechanism (3) are including drum (301), inside slip of drum (301) is equipped with piston (304).

2. The electric vehicle motor sealing structure of claim 1, wherein: fixed ring (102) are installed to motor casing (101) outer lane, a plurality of fixed column (103) that a plurality of annular distributes are all installed at fixed ring (102) both ends, it has a plurality of stationary blade (202) to distribute to seal dish (201) outer lane annular, it is equipped with fastening screw to insert on stationary blade (202), be equipped with the gasket between fastening screw and stationary blade (202), inside fastening screw thread insert established into fixed column (103).

3. The electric vehicle motor sealing structure of claim 1, wherein: seal dish (201) and be close to the one end of motor casing (101) and install packing ring (203), packing ring (203) are installed between motor casing (101) and seal dish (201), the one end that packing ring (203) are close to motor casing (101) distributes and has a plurality of first sealing washer, a plurality of first recess, a plurality of have all been seted up at motor casing (101) both ends first sealing washer can block respectively and establish into inside the first recess of a plurality of.

4. The electric vehicle motor sealing structure of claim 1, wherein: seal dish (201) one end annular distribution that is close to motor casing (101) has spliced pole (208) of a plurality of symmetry, the symmetry the spliced pole (208) are kept away from the one end of sealed dish (201) and are installed connecting plate (209), and the annular distributes connecting plate (209) and the solid fixed ring of third (210) outer lane fixed connection.

5. The electric vehicle motor sealing structure of claim 1, wherein: rotate through the bearing on sealed dish (201) and be provided with rotation post (204), hexagonal hole in having seted up in rotation post (201) is close to the one end of sealed dish (204), the one end of keeping away from sealed dish (201) of rotation post (204) installs first outer gear (205), outer ring gear (212) are installed to rotating ring (211) outer lane, outer ring gear (212) and first outer gear (205) meshing.

6. The electric vehicle motor sealing structure of claim 1, wherein: first solid fixed ring (206) and the solid fixed ring of third (210) one side that is close to each other has all been seted up the second recess, the spacing ring is all installed at swivel becket (211) both ends, the spacing ring can slide in second recess inside, the solid fixed ring of second (207) is installed to first solid fixed ring (206) and the solid fixed ring of third (210) inner circle, and not contact with first solid fixed ring (206) and the solid fixed ring of third (210), solid fixed ring of second (207) center department is passed in axis of rotation (106), the solid fixed ring of second (207) and the fixed disk of symmetry (214) one side fixed connection, third outer gear (219) is installed to the one end that dwang (217) is close to sealed dish (201), third outer gear (219) are installed in the solid fixed ring of second (207) outer lane, and mesh with interior ring of toothings (213).

7. The electric vehicle motor sealing structure of claim 1, wherein: rotation axis (106) pass second go-between (216) center department, the spacing groove of the symmetry of a plurality of annular distribution is all seted up to one side that first go-between (215) and second go-between (216) are close to each other, spacing (221) of symmetry are all installed to the both sides of rectangle frame (220) symmetry, spacing (221) slide and set up at spacing inslot portion, rectangle frame (220) internally mounted has rack (222), install second external gear (218) on dwang (217), second external gear (218) and rack (222) meshing.

8. The electric vehicle motor sealing structure of claim 1, wherein: buffer spring (224) inside is equipped with spacing section of thick bamboo (225) and gag lever post (226), gag lever post (227) are installed to gag lever post (226) one end, gag lever post (227) and gag lever post (226) one end slide to set up inside spacing section of thick bamboo (225), spacing section of thick bamboo (225) one end and fixed plate (223) fixed connection, the one end and the movable plate (228) fixed connection of spacing post (227) are kept away from in gag lever post (226).

9. The electric vehicle motor sealing structure of claim 1, wherein: first oil blanket (230) and second oil blanket (231) rotate and set up on axis of rotation (106), and it has lubricating oil to fill with axis of rotation (106) contact department, second oil blanket (231) set up in sealed dish (201) center department, a plurality of third recess has been seted up to sealed dish (201) inner circle, a plurality of second sealing washer, a plurality of are installed to second oil blanket (231) outer lane the second sealing washer is blocked respectively and is established into inside a plurality of third recess.

10. The electric vehicle motor sealing structure of claim 1, wherein: drum (301) internally mounted has a plurality of spacing disc (302), a plurality of spacing disc (302) center department slides and is equipped with carriage release lever (303), carriage release lever (303) one end and piston (304) fixed connection, the gas pocket has been seted up to drum (301) one end of keeping away from sealed dish (201), piston (304) can laminate with the gas pocket, spacing piece (305) are installed to the one end that piston (304) were kept away from in carriage release lever (303).