CN218468199U

CN218468199U - Sealing structure of driving half shaft

Info

Publication number: CN218468199U
Application number: CN202222853417.5U
Authority: CN
Inventors: 朱富文
Original assignee: Wenzhou Renben Motor Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Wenzhou Renben Motor Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-02-10
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a drive semi-axis seal structure, include drive semi-axis body, cup joint the bearing on drive semi-axis body, the lug has been cup jointed on the outer lane of bearing, the lug components of a whole that can function independently sets up to last casing and lower casing, upward be equipped with the sealing member between casing and the lower casing, the sealing member cup joints on drive semi-axis body, the both sides of lug all are equipped with the sealing member, bearing inner race's both ends all be equipped with lug both sides sealing member complex annular groove. Carry out secondary seal to the bearing through setting up the sealing member in the both sides of lug, can prevent effectively that external impurity from getting into the bearing, the curb plate of lug both sides is detachable and connects, makes sealing member easy to assemble and dismantlement to this curb plate makes the connection between last casing and the lower casing inseparabler.

Description

Sealing structure of driving half shaft

Technical Field

The utility model relates to a drive semi-axis seal structure.

Background

The half shafts, also called drive shafts, are the shafts connecting the differential to the drive wheels. The half shaft is a shaft for transmitting torque between a speed reducer of a gearbox and a driving wheel, the inner end and the outer end of the half shaft are respectively provided with a universal joint which is respectively connected with a gear of the speed reducer and an inner ring of a bearing of a hub through a spline on the universal joint, the half shaft is also provided with a bearing for supporting, and the bearing is arranged at the position of an automobile chassis and has a sealing structure, so that the bearing has a lower effect on a severe muddy water environment, and external impurities are easy to enter the inside of the bearing, thereby leading the service life of the bearing to be advanced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a drive semi-axis seal structure carries out the secondary to epaxial bearing of half and seals, prevents that external impurity from getting into inside the bearing, leads to the bearing life-span to advance.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a drive semi-axis seal structure, includes drive semi-axis body, cup joints the bearing on drive semi-axis body, the lug has been cup jointed on the outer lane of bearing, the lug components of a whole that can function independently sets up to last casing and lower casing, go up and be equipped with the sealing member between casing and the lower casing, the sealing member cup joints on drive semi-axis body, the both sides of lug all are equipped with the sealing member, the both ends of bearing inner race all are equipped with lug both sides sealing member complex annular groove.

As a further improvement, all be equipped with the mounting groove that is used for installing the sealing member on going up the casing and the relative face of casing down, the one end interference fit of sealing member external diameter is in the mounting groove, be equipped with first flange, second flange on the sealing member, and first flange, second flange extend towards the direction of bearing, the second flange extend to in the annular groove and with annular groove interference fit.

As a further improvement, the both sides of lug all are equipped with the curb plate, the curb plate passes through on the bolt fastening lug, the bolt just respectively with last casing, lower shell coupling along the circumference equipartition of curb plate, the sealing member of lug both sides passes through the curb plate butt fixedly.

As a further improvement of the utility model, a rubber ring is arranged on the outer diameter surface of the first flange.

The utility model has the advantages that: carry out secondary seal to the bearing through setting up the sealing member in the both sides of lug, can prevent effectively that external impurity from getting into the bearing, the curb plate of lug both sides is detachable and connects, makes sealing member easy to assemble and dismantlement to this curb plate makes the connection between last casing and the lower casing inseparabler.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the upper case, the side plate, and the sealing member of the present invention;

fig. 4 is a schematic view of the sealing member of the present invention.

Reference numbers: 1. a half shaft body; 2. an outer ring; 3. lifting lugs; 31. an upper housing; 32. a lower housing; 4. a seal member; 41. a first flange; 42. a second flange; 5. an annular groove; 6. a rubber ring; 7. a side plate; 8. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1-4, a driving half shaft sealing structure, includes driving half shaft body 1, cup joints the bearing on driving half shaft body 1, the lug 3 has been cup jointed on the outer lane 2 of bearing, and this lug 3 is used for cooperating the bearing to realize hanging or supporting, the components of a whole that can function independently of lug 3 sets up to go up casing 31 and lower casing 32, go up and be equipped with sealing member 4 between casing 31 and the lower casing 32, sealing member 4 cup joints on driving half shaft body 1, the both sides of lug 3 all are equipped with sealing member 4, the both ends of bearing inner race 2 all are equipped with the annular groove 5 with the 4 complex of lug 3 both sides sealing member, form sealedly through setting up sealing member 4 in the both sides of lug 3 and making the annular groove 5 cooperation on sealing member 4 and the bearing inner race 2, in order to prevent that external impurity from getting into inside the bearing, lead to the phenomenon that the bearing appears rustting or the bearing peels off.

Go up casing 31 and all be equipped with the mounting groove 8 that is used for installing sealing member 4 on the face relative with lower casing 32, the one end interference fit of sealing member 4 external diameter is in mounting groove 8, be equipped with first flange 41, second flange 42 on sealing member 4, and first flange 41, second flange 42 extend towards the direction of bearing, be equipped with rubber ring 6 on the external diameter face of first flange 41, set up first flange 41 and make sealing member 4 and drive semi-axis body 1 have longer contact surface, reserve the position for installing rubber ring 6 simultaneously, cup joint the rubber ring 6 on first flange 41 and make the connection between first flange 41 and the drive semi-axis body 1 inseparabler, second flange 42 extend to in the annular groove 5 and with annular groove 5 interference fit.

The both sides of lug 3 all are equipped with curb plate 7, curb plate 7 is on through bolt fastening lug 3, the bolt is just connected with last casing 31, lower casing 32 respectively along the circumference equipartition of curb plate 7, the sealing member 4 of lug 3 both sides is fixed through curb plate 7 butt, curb plate 7 adopts the circular shape in this embodiment to through arranging the bolt in its circumference, make the connection between last casing 31 and the lower casing 32 inseparabler, detachable curb plate 7 makes the installation and the dismantlement of sealing member 4 more convenient, the condition that obviously ages appears in the sealing member 4 of lug 3 one side or both sides, can replace sealing member 4 fast.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a drive semi-axis seal structure, its characterized in that, includes drive semi-axis body, cup joints the bearing on drive semi-axis body, the lug has been cup jointed on the outer lane of bearing, the lug components of a whole that can function independently sets up to last casing and lower casing, be equipped with the sealing member between last casing and the lower casing, the sealing member cup joints on drive semi-axis body, the both sides of lug all are equipped with the sealing member, the both ends of bearing inner race all are equipped with lug both sides sealing member complex annular groove.

2. The drive axle shaft sealing structure according to claim 1, wherein the opposite surfaces of the upper casing and the lower casing are provided with mounting grooves for mounting sealing elements, one end of the outer diameter of each sealing element is in interference fit with the corresponding mounting groove, the sealing elements are provided with first flanges and second flanges, the first flanges and the second flanges extend towards the direction of the bearing, and the second flanges extend into the annular grooves and are in interference fit with the annular grooves.

3. The driving half shaft sealing structure according to claim 1, wherein side plates are arranged on both sides of the lifting lug, the side plates are fixed on the lifting lug through bolts, the bolts are uniformly distributed along the circumferential direction of the side plates and are respectively connected with the upper shell and the lower shell, and sealing elements on both sides of the lifting lug are abutted and fixed through the side plates.

4. The drive axle shaft seal structure of claim 2, wherein a rubber ring is provided on the outer diameter surface of the first flange.