CN209170102U - Motor output shaft seal assembly - Google Patents

Abstract

This application discloses a kind of motor output shaft seal assemblies, including motor front end cover, outside framework oil seal and sealing shroud；The motor front end cover is sheathed on motor output shaft；The ending cover hole that the motor front end cover is equipped with annular convex platform and motor output shaft can be made to pass through；The annular convex platform is equipped with rhone；The ending cover hole is equipped with limited step；The outside framework oil seal is installed in the limited step；The sealing shroud is installed in the annular convex platform；The sealing sets of holes that the sealing shroud is equipped with sealing shroud end face and motor output shaft can be made to pass through；The sealing sets of holes are equipped with the zigzag contact surface matched with motor output shaft.Seal assembly described in the utility model has the double-layer seal guarantee of outside framework oil seal and sealing shroud, can prevent the intrusion of dirt, water, sand mud, improve the leakproofness of motor and the security performance of vehicle.

Description

Motor output shaft seal assembly

Technical field

The utility model relates to motor seal component technology fields, and in particular to a kind of motor output shaft seal assembly.

Background technique

Since vehicle is needed in various severe road conditions downward drivings, national standard IP67 has been unable to meet the protection requirements of vehicle. For eliminating the direct-drive type drive assembly scheme of gearbox, the front end portion of motor is an exposure to external；Therefore, direct-drive type Drive assembly scheme is very high for the seal request of motor.

Application No. is the Chinese invention patents of CN201810289197.3 to disclose a kind of motor seal dress of electric car It sets；The technical solution includes: bearing (ball) cover, and bearing (ball) cover has the extraneous inner hole with inside of connection, is provided with annular in inner hole Positioning step；The first sealing ring that can be installed in the inner hole of bearing (ball) cover, the side of the first sealing ring are connected to positioning On step, the first sealing ring is relative to positioning step close to external；The second sealing ring being installed in the inner hole of bearing (ball) cover, the For two sealing rings relative to the first sealing ring close to outside, the end of motor output shaft is located at the first sealing ring and the second sealing ring It is interior；First sealing ring and the second sealing ring surround lubricant reservoir, and lubricant reservoir is exported for holding lubricating oil, lubricating oil in motor Axis and the first sealing ring and the formation sealing oil film between motor output shaft and the second sealing ring.In the technical scheme, One sealing ring and the second sealing ring constitute first layer sealing, and sealing oil film constitutes second layer sealing.Electricity in the technical solution Secret seal apparatus can provide good sealing for motor, but structure is complicated, and cost is high, and maintenance process is cumbersome.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of motors for improving motor seal performance Export shaft seal assembly.

The technical solution that the utility model solves the problems, such as is: the seal assembly, including motor front end cover, outside framework oil seal and Sealing shroud；The motor front end cover is sheathed on motor output shaft；The motor front end cover is equipped with annular convex platform and can make motor The ending cover hole that output shaft passes through；The annular convex platform is equipped with rhone；The ending cover hole is equipped with limited step；The outside framework oil seal It is installed in the limited step；The sealing shroud is installed in the annular convex platform；The sealing shroud is equipped with sealing shroud end face and energy The sealing sets of holes for enough passing through motor output shaft；The sealing sets of holes are equipped with and contact with the zigzag that motor output shaft matches Face.

Further, the annular convex platform is set there are two the rhone；The rhone is wedge-type shape.

Further, the zigzag contact surface favours the sealing shroud end face, the inclination of the zigzag contact surface The variation of the diameter of axle of degree and motor output shaft is adapted.

Further, the sealing shroud is connected through a screw thread part and is installed in the annular convex platform, the sealing shroud and described Seal washer is equipped between annular convex platform.

Further, the seal washer is made of rubber material.

Compared with the existing technology, the beneficial benefit of the utility model is: 1. seal assemblies described in the utility model have bone The double-layer seal guarantee of frame oil sealing and sealing shroud, can prevent the intrusion of dirt, water, sand mud, improve the sealing performance of motor with And the security performance of vehicle.2. seal assembly described in the utility model is equipped with sealing shroud, the sewage to splash can be further prevented Into inside motor.3. the motor front end cover of seal assembly described in the utility model is equipped with rhone, avoid depositing after into water dirty Water, convenient for the discharge of ponding.

Detailed description of the invention

Fig. 1 is the main view of seal assembly described in the utility model.

Fig. 2 is the A-A cross-sectional view of seal assembly described in the utility model.

Description of symbols: 0- motor；1- motor output shaft；2- motor front end cover；3- outside framework oil seal；4- sealing shroud；5- Annular convex platform；6- ending cover hole；The first rhone of 7-；8- limited step；9- sealing shroud end face；10- seals sets of holes；11- zigzag Contact surface；12- threaded connector；13- seal washer；14- connection spline；The second rhone of 15-.

Specific embodiment

In the description of the present invention, it should be understood that it is to be appreciated that the instructions such as term " on ", "lower" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation Make, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result, The feature of " first ", " second " etc. can explicitly or implicitly include one or more of the features.

As depicted in figs. 1 and 2, seal assembly described in the utility model includes motor front end cover 2, outside framework oil seal 3 and sealing Set 4；Motor front end cover 2 is sheathed on motor output shaft 1；Motor front end cover 2 is equipped with annular convex platform 5 and can make motor output shaft 1 The ending cover hole 6 passed through；Ending cover hole 6 is equipped with limited step 8；Outside framework oil seal 3 is installed in limited step 8；Sealing shroud 4 is installed in annular Boss 5；The sealing sets of holes 10 that sealing shroud 4 is equipped with sealing shroud end face 9 and motor output shaft 1 can be made to pass through；Sealing sets of holes 10 are set There is the zigzag contact surface 11 matched with motor output shaft 1；Annular convex platform 5 is equipped with the first rhone 7 and the second rhone 15； First rhone 7 and the second rhone 15 are up-narrow and down-wide wedge-type shape, set on the lower end of annular convex platform 5.

Further, zigzag contact surface 11 favours sealing shroud end face 9, the inclined degree and electricity of zigzag contact surface 11 The diameter of axle variation of machine output shaft 1 is adapted.

Further, sealing shroud 4 is connected through a screw thread part 12 and is installed in annular convex platform 5, sealing shroud 4 and annular convex platform 5 it Between be equipped with seal washer 13.

Further, seal washer 13 is made of rubber material.

In new-energy automobile field, for eliminating the direct-drive type drive assembly scheme of gearbox, for installing connection The motor output shaft 1 of spline 14 is an exposure to external thus very high for the seal request of motor 0.Outside framework oil seal 3 can be kept away Exempt from the liquid such as water, oil to enter inside motor 0；Motor front end cover 2 and sealing shroud 4 can further stop the external pollution splashed Object；First rhone 7 and the second rhone 15 can be such that the ponding between motor front end cover 2 and sealing shroud 4 is easily drained；Annular Seal washer 13 can further strengthen sealing function.

The utility model is not limited to the above embodiment, without departing substantially from the utility model in essence content, this Any deformation, improvement, the replacement that field technical staff is contemplated that each fall within the protection scope of the utility model.

Claims (5)

1. a kind of motor output shaft seal assembly, it is characterised in that: including motor front end cover, outside framework oil seal and sealing shroud；It is described Motor front end cover is sheathed on motor output shaft；The motor front end cover is equipped with annular convex platform and motor output shaft can be made to pass through Ending cover hole；The annular convex platform is equipped with rhone；The ending cover hole is equipped with limited step；The outside framework oil seal is installed in the limit Position step；The sealing shroud is installed in the annular convex platform；The sealing shroud is equipped with sealing shroud end face and motor can be made to export The sealing sets of holes that axis passes through；The sealing sets of holes are equipped with the zigzag contact surface matched with motor output shaft.

2. motor output shaft seal assembly according to claim 1, it is characterised in that: the annular convex platform is set there are two institute State rhone；The rhone is wedge-type shape.

3. motor output shaft seal assembly according to claim 1, it is characterised in that: the zigzag contact surface favours The diameter of axle variation of the sealing shroud end face, the inclined degree and motor output shaft of the zigzag contact surface is adapted.

4. motor output shaft seal assembly according to claim 1, it is characterised in that: the sealing shroud is connected through a screw thread Part is installed in the annular convex platform, and seal washer is equipped between the sealing shroud and the annular convex platform.

5. motor output shaft seal assembly according to claim 4, it is characterised in that: the seal washer is by rubber material It is made.