WO2016187823A1

WO2016187823A1 - Axle main cone assembly

Info

Publication number: WO2016187823A1
Application number: PCT/CN2015/079853
Authority: WO
Inventors: 许亮芳
Original assignee: 许亮芳
Priority date: 2015-05-26
Filing date: 2015-05-26
Publication date: 2016-12-01

Abstract

An axle main cone assembly, comprising a bearing (1), a bevel gear (2), a front bearing (3), an O-ring (4), an adjusting washer (5), a rear bearing (6), a bearing cap (7), an oil seal (8), a dust-proof sleeve (9), a flat washer (10), a hex nut (11), and a cotter pin (12). The bearing (1) is arranged at a bottom end of the bevel gear (2), and the bearing (1) is tightly connected to the bevel gear (2). The front bearing covers one end of the bevel gear (2). The O-ring (4) is arranged at an end step position of the bevel gear (2) and at one end of the front bearing (3). The bearing (1), the bevel gear (2), the front bearing (3), the O-ring (4), the adjusting washer (5) and the rear bearing (6) are matchedly connected and mounted at an inner portion of the bearing cap (7), a top portion of the bearing cap (7) is connected to the oil seal (8), and the dust-proof sleeve (9) is sleeved on an outer surface of the oil seal (8). The axle assembly has a simple structure, a good sealing effect, a small frictional force between the components, and a high mechanical transmission efficiency. The axle assembly is highly reliable, and has a long service life.

Description

Axle main cone assembly

Technical field

The invention relates to an automobile component, in particular to an axle main cone structure, and belongs to the field of automobile power transmission systems.

Background technique

At present, with the widespread use of automobiles, the performance requirements of the car are more stringent. The domestic axle market has great potential. The special market environment has more demanding requirements for the axle. The reducer is a relatively precise machine. The purpose of using it is to reduce the speed and increase the torque. The axle is used in various fields of the national economy and the national defense industry. Food light industry, electric machinery, construction machinery, metallurgical machinery, cement machinery, environmental protection machinery, electronic appliances, road construction. Machinery, hydraulic machinery, chemical machinery, mining machinery, conveyor machinery, building materials machinery, rubber machinery, petroleum machinery and other industries have strong demand for reducer products. The axle reducer is a key component of the automotive transmission system, and the main axle of the axle is a component of the transmission system of the reducer. The quality of the main cone is important for the stability, safety and reliability of the vehicle drive train and even the entire vehicle. Impact.

The prior patent CN203431178U describes a novel axle main cone dust seal structure, comprising a drive shaft and a mounting shell, comprising a plurality of lips, an oil seal and a dust cover, the plurality of lips having a main body matched with the surface of the drive shaft a lip, a first secondary lip, a second secondary lip, and a long oblique lip that is obliquely outwardly inserted into the plurality of lips, the outer side of the plurality of lips extending outward to enclose the oil seal, the dust cover It cooperates with the long auxiliary lip and the inner side cooperates with the surface of the transmission shaft, but there are many disadvantages, such as the bevel gear of the axle is easy to wear, the internal friction is large, the oil seal structure is easy to leak, and the internal link of the axle is not tight, etc. It is also a problem existing in the main cone structure of the axle. Therefore, an axle main cone assembly is proposed for the above problem.

Summary of the invention

In view of the deficiencies of the prior art, the object of the present invention is to provide a simple structure, a good sealing effect, small friction between parts, high strength, high mechanical transmission efficiency, high mechanical transmission efficiency, high reliability, and long life. The main cone structure of the axle.

In order to achieve the above object, the present invention provides the following technical solutions: an axle main cone assembly, including a bearing, a bevel gear, a front bearing, an O-ring, an adjustment gasket, a rear bearing, a bearing cover, an oil seal, a dust jacket, and a flat a washer, a hex nut and a split pin; the bearing is disposed at a bottom end of the bevel gear and is tightly coupled to the bevel gear; the front bearing cap is mounted at one end of the bevel gear; the O-ring is disposed at a step of one end of the bevel gear And at one end of the front bearing; the bearing, the bevel gear, the front bearing, the O-ring, the adjusting washer, the rear bearing are cooperatively connected inside the bearing cover, and the top of the bearing cover is connected with the oil seal, outside the oil seal The surface is covered with a dust jacket.

Wherein, the oil seal is provided with a dust jacket outside, and the dust jacket has a circular ring structure.

Wherein, the dust jacket is set on the outer surface of the oil seal, and the dust jacket is detachable structure.

Wherein, the hex nut is tightly fixed by the split pin, and the split pin has a cylindrical structure.

Wherein, the bevel gear has a truncated cone structure.

Wherein, the adjusting gasket is disposed between the front bearing and the rear bearing, and the adjusting gasket has a circular ring structure.

Wherein, the oil seal and the flat washer are cooperatively connected, and a fastening post is arranged between the oil seal and the flat washer.

Compared with the prior art, the invention has the beneficial effects that the structure is provided with a dust jacket outside the oil seal, which effectively prevents dust from entering the oil seal, so that the oil seal is not easily damaged by the outside, and the hex nut is tightly fixed by the split pin. The axle structure is more closely connected, and a pressure reducing gasket is arranged between the front bearing and the rear bearing to make the friction between the bearings smaller. The structure is simple, the sealing effect is good, the friction between the parts is small, and the mechanical transmission High efficiency and high reliability make the axle life longer.

DRAWINGS

Figure 1 is an exploded view of the overall structure of the present invention;

Figure 2 is a combination view of the overall structure of the present invention;

Figure 3 is a selection diagram of the adjusting gasket of the present invention;

Among them: 1, bearing, 2, driving bevel gear, 3, front bearing, 3, O-ring, 4, adjusting gasket, 6, rear bearing, 7, bearing cover, 8, oil seal, 9, dust jacket, 10 , flat washer, 11, hex nut, 12, cotter pin.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 to 3, the present invention provides a technical solution: the axle main cone assembly includes a bearing 1, a bevel gear 2, a front bearing 3, an O-ring 4, an adjustment washer 5, a rear bearing 6, a bearing cover 7, An oil seal 8, a dust jacket 9, a flat washer 10, a hex nut 11 and a split pin 12; the bearing 1 is disposed at the lowermost end of the whole and is tightly coupled to the bevel gear 2; the upper end of the bevel gear 2 passes through the adjustment pad in sequence The sheet 5, the rear bearing 6, the bearing cover 7, the oil seal 8, the dust jacket 9, the flat washer 10 are screwed with the hex nut 11, and are fixed with the hex nut 11 through the split pin 12; the front bearing 3 is set in the bevel gear 2 The upper end portion; the O-ring 4 is disposed at the upper end step of the bevel gear 2, and at the upper end portion of the front bearing 3; the bearing 1, the bevel gear 2, the front bearing 3, the O-ring 4, the adjustment pad The sheet 5 and the rear bearing 6 are fitted and mounted inside the bearing cap 7, and the upper end portion of the bearing cap 7 is connected to the oil seal 8, and a dust jacket 9 is sheathed on the outer surface of the oil seal 8.

As an optimization technical solution of the present invention, the oil seal 8 is provided with a dust jacket 9 outside, and the dust jacket 9 has a circular ring structure; the dust jacket 9 is set on the outer surface of the oil seal 8, and the dust jacket 9 is Disassembly structure; The hex nut 11 is tightly fixed by the split pin 12, and the split pin 12 has a cylindrical structure; the bevel gear 2 is a truncated cone structure; the adjusting shim 5 is disposed between the front bearing 3 and the rear bearing 6, and The adjusting washer 5 is a ring-shaped structure; the oil seal 8 and the flat washer 10 are cooperatively connected, and a fastening post is disposed between the oil seal 8 and the flat washer 10.

The gasket machine of the present invention selects the principle of adjusting the gasket: when selecting the main cone structure gasket of the axle, first, the gasket device is an optional inner ring of a tapered roller bearing, and a standard adjustment washer is added to the top. In the bearing inner ring plus a certain value of the axial load, the axial force generated by the main cone locking torque minus the axial load on the inner ring of the bearing, the height A of the upper and lower ends of the inner ring of the bearing is measured, the gasket device After the measurement, the sub-gasket is removed, and the outer ring of the bearing is added. After the bearing seat is rotated, the height B of the upper and lower ends of the inner ring of the bearing is measured, wherein the height of the gasket is AB, because the force of each part is similar, Therefore, the size of the gasket is selected regardless of the force deformation of each part.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim.

In addition, it should be understood that although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution. The description of the specification is merely for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the respective embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

Claims

An axle main cone assembly, comprising a bearing, a bevel gear, a front bearing, an O-ring, an adjusting washer, a rear bearing, a bearing cap, an oil seal, a dust jacket, a flat washer, a hex nut and a split pin; wherein The bearing is disposed at the bottom end of the whole body and is closely connected with the bevel gear; the end of the bevel gear is sequentially threaded through the adjusting washer, the rear bearing, the bearing cover, the oil seal, the dust jacket, the flat washer and the hex nut, and the hexagon a nut is fixed by a split pin; the front bearing is set at one end of the bevel gear; the O-ring is disposed at a step of one end of the bevel gear and at one end of the front bearing; the bearing, bevel gear, front bearing, O The ring, the adjusting washer and the rear bearing are connected and installed inside the bearing cover, and the top end of the bearing cover is connected with the oil seal, and the outer surface of the oil seal is covered with a dust jacket.
The axle main cone assembly according to claim 1, wherein the oil seal is provided with a dust jacket outside, and the dust jacket has a circular ring structure.
The axle main cone assembly according to claim 2, wherein the dust jacket is sleeved on an outer surface of the oil seal, and the dust jacket is a detachable structure.
An axle main cone assembly according to claim 1, wherein the hex nut is tightly fixed by a split pin, and the split pin has a cylindrical structure.
A vehicle axle main cone assembly according to claim 1, wherein said bevel gear is a truncated cone structure.
An axle main cone assembly according to claim 1, wherein said adjustment washer is disposed between the front bearing and the rear bearing, and the adjustment spacer has a circular ring structure.
The axle main cone assembly according to claim 1, wherein the oil seal and the flat washer are cooperatively coupled, and a fastening post is disposed between the oil seal and the flat washer.