CN218971695U

CN218971695U - Long service life oil leakage proof universal joint cross axle

Info

Publication number: CN218971695U
Application number: CN202223518575.1U
Authority: CN
Inventors: 汪钦炯; 傅路萍; 牛晶晶
Original assignee: Hangzhou Genda Machinery Co ltd
Current assignee: Hangzhou Genda Machinery Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-05
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a long-life oil leakage-proof universal joint cross shaft, which relates to the technical field of cross shafts. According to the utility model, the first sealing valve is folded and placed on the second sealing valve, the gap between the shaft body and the shaft sleeve is sealed through the second sealing valve in the using process of the cross shaft, when the second sealing valve is worn, the first sealing valve is contacted with the shaft body through shrinkage of the elastic piece, the elastic piece is similar to a rubber band to shrink the radial center of a circle to apply force, so that the gap between the shaft body and the shaft sleeve is sealed, and the two sealing valves are used for alternately sealing, so that the service life of the cross shaft sealing piece can be nearly doubled, and meanwhile, the tightness is better, and oil leakage can be effectively prevented before the sealing structure is damaged.

Description

Long service life oil leakage proof universal joint cross axle

Technical Field

The utility model relates to the technical field of cross shafts, in particular to a long-service-life oil-leakage-proof universal joint cross shaft.

Background

The universal shaft coupling is called universal shaft or universal joint for short, and is characterized by that it can make two shafts which are not on the same axis and whose axes have included angle still implement transmission and reliably transfer torque and movement, and the universal shaft coupling mainly includes cross shaft type, ball cage type and ball fork type, etc..

The utility model provides a long-life universal joint cross axle of application number 202221372411.X relates to transmission technical field, seals the axle sleeve through the cavity that a plurality of sealing flaps formed, has prevented the leakage of the inside lubricating medium of axle sleeve, makes the inside state that is in the lubricating medium fully lubricated of axle sleeve to when the universal joint cross axle is in operation, can not influence the transmission of universal joint cross axle because of the bearing pin is dry to rub.

The sealing performance of the shaft sleeve is improved by arranging the three sealing petals, so that an oil leakage prevention effect is achieved, the shaft sleeve and the shaft body are in a movable connection state, the sealing petals can be worn after being used for a long time, so that the sealing failure or the sealing effect is reduced, and the three sealing petals of the cross shaft are directly involved in friction, so that the three sealing petals are in a synchronous wear state, and the lifting is not very large in service life.

Disclosure of Invention

Based on the technical scheme, the utility model aims to provide the long-service-life oil-leakage-proof universal joint cross shaft so as to solve the technical problem of small service life improvement.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the long-life oil leakage prevention universal joint cross shaft comprises a shaft body and a shaft sleeve, a needle roller is connected between the shaft body and the shaft sleeve, a sealing ring is connected in the shaft sleeve, a first sealing valve is connected in the sealing ring, a clamping seat is connected to the surface of the first sealing valve, an elastic piece is arranged in the clamping seat, and a second sealing valve is connected in the sealing ring.

By adopting the technical scheme, in the using process of the cross shaft, the gap between the shaft body and the shaft sleeve is sealed through the second sealing valve, when the second sealing valve is worn, the first sealing valve is contacted with the shaft body through the shrinkage of the elastic piece, and the elastic piece is similar to a rubber band to shrink the straight radial center of the circle to apply force, so that the gap between the shaft body and the shaft sleeve is sealed.

Further, the shaft sleeve is movably connected with the shaft body, and the shaft sleeve is positioned outside the shaft body.

Through adopting above-mentioned technical scheme, the universal joint of cross axle is in the transmission process, thereby because four axles of cross axle all can rotate can satisfy complicated transmission mode to the universal joint of cross axle can make two not on same axis and the axle that the axis exists the contained angle still can realize the transmission.

Further, the second sealing valve is L-shaped, and the bottom of the first sealing valve is U-shaped.

By adopting the technical scheme, in the using process of the cross shaft, the gap between the shaft body and the shaft sleeve is sealed through the second sealing valve, and when the second sealing valve is worn, the first sealing valve is contacted with the shaft body through the shrinkage of the elastic piece.

Further, the top of the clamping seat is provided with a groove, and the groove at the top of the clamping seat is in an inverted trapezoid shape.

By adopting the technical scheme, the elastic piece is similar to an elastic band, and the diameter can be reduced to apply force to the direction of the circle center, so that the second sealing valve is always in contact with the shaft body to ensure sealing, and the first sealing valve is always in contact with the shaft body to ensure sealing after the second sealing valve is worn.

Furthermore, the inside of cassette is offered and is annular through-hole, just the elastic component and through-hole looks adaptation.

Further, the shaft sleeve, the sealing ring, the first sealing valve and the second sealing valve are all four, and the four shaft sleeve, the sealing ring, the first sealing valve and the second sealing valve are all distributed in an annular array shape.

Further, the clamping seat and the elastic piece are all provided with eight, and the eight clamping seats and the elastic piece are respectively arranged on the four first sealing petals.

In summary, the utility model has the following advantages:

according to the utility model, the first sealing valve is folded and placed on the second sealing valve, the gap between the shaft body and the shaft sleeve is sealed through the second sealing valve in the using process of the cross shaft, when the second sealing valve is worn, the first sealing valve is contacted with the shaft body through shrinkage of the elastic piece, the elastic piece is similar to a rubber band to shrink the radial center of a circle to apply force, so that the gap between the shaft body and the shaft sleeve is sealed, and the two sealing valves are used for alternately sealing, so that the service life of the cross shaft sealing piece can be nearly doubled, and meanwhile, the tightness is better, and oil leakage can be effectively prevented before the sealing structure is damaged.

Drawings

FIG. 1 is a schematic view of a cross-shaft structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the cross-shaft of the present utility model;

FIG. 3 is a schematic cross-sectional view of a seal ring according to the present utility model;

fig. 4 is an enlarged view of the structure of fig. 3 at a in accordance with the present utility model.

In the figure: 1. a shaft body; 2. a shaft sleeve; 3. needle roller; 4. a seal ring; 5. a first sealing flap; 6. a second sealing flap; 7. a clamping seat; 8. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The utility model provides a long-life leak protection oil universal joint cross-pin, as shown in fig. 1, 2, 3 and 4, including axis body 1 and axle sleeve 2, be connected with the kingpin 3 that is used for reducing wearing and tearing between axis body 1 and the axle sleeve 2, axle sleeve 2 passes through kingpin 3 and is connected with axis body 1 rotation, and axle sleeve 2 is located axis body 1 outside, the axle sleeve 2 inner circle is connected with sealing washer 4, the inside one side of sealing washer 4 is connected with first sealing lamella 5, first sealing lamella 5 outer lane is connected with cassette 7, the groove is seted up to the cassette 7 outer lane, and the groove cross-section of cassette 7 outer lane is trapezoidal, be annular through-hole has been seted up to cassette 7 inside, cassette 7 inside is provided with elastic component 8, and thereby elastic component 8 and through-hole looks adaptation can make first sealing lamella 5 or second sealing lamella 6 contact with axis body 1 all the time, thereby guarantee the leakproofness, the inside opposite side of sealing washer 4 is connected with second sealing lamella 6, second sealing lamella 6 is "L" font, and first sealing lamella 5 bottom is "U" font, can nearly double increase the life of cross-pin seal, the leakproofness also can effectively prevent the damage before seal structure effectively.

Referring to fig. 1, 2, 3 and 4, in the above embodiment, the shaft sleeve 2, the sealing ring 4, the first sealing flap 5 and the second sealing flap 6 are all provided with four, and the four shaft sleeves 2, the sealing ring 4, the first sealing flap 5 and the second sealing flap 6 are all distributed in a ring array shape, the clamping seats 7 and the elastic pieces 8 are all provided with eight, and the eight clamping seats 7 and the elastic pieces 8 are respectively arranged on the four first sealing flaps 5, so that the sealing performance is better.

The implementation principle of the embodiment is as follows: firstly, in the use process of the cross shaft, the second sealing valve 6 is contacted with the shaft body 1, a gap between the shaft body 1 and the shaft sleeve 2 is sealed, the elastic piece 8 is similar to a rubber band, and the diameter can be reduced to apply force to the circle center direction, so that the second sealing valve 6 is always contacted with the shaft body 1 to ensure sealing, and thus oil leakage is prevented, when the second sealing valve 6 is worn, the first sealing valve 5 is contacted with the shaft body 1 through the shrinkage of the elastic piece 8, so that the gap between the shaft body 1 and the shaft sleeve 2 is sealed, and the service life of the sealing piece is prolonged by nearly one time under the condition of not affecting the tightness.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. Long-life leak protection oil universal joint cross axle, including axis body (1) and axle sleeve (2), its characterized in that: the novel sealing device is characterized in that a needle roller (3) is connected between the shaft body (1) and the shaft sleeve (2), a sealing ring (4) is connected in the shaft sleeve (2), a first sealing valve (5) is connected in the sealing ring (4), a clamping seat (7) is connected to the surface of the first sealing valve (5), an elastic piece (8) is arranged in the clamping seat (7), and a second sealing valve (6) is connected in the sealing ring (4).

2. The long life oil spill resistant universal joint cross as recited in claim 1, wherein: the shaft sleeve (2) is movably connected with the shaft body (1), and the shaft sleeve (2) is positioned outside the shaft body (1).

3. The long life oil spill resistant universal joint cross as recited in claim 1, wherein: the second sealing valve (6) is L-shaped, and the bottom of the first sealing valve (5) is U-shaped.

4. The long life oil spill resistant universal joint cross as recited in claim 1, wherein: the top of the clamping seat (7) is provided with a groove, and the groove at the top of the clamping seat (7) is in an inverted trapezoid shape.

5. The long life oil spill resistant universal joint cross as recited in claim 4, wherein: the inside of cassette (7) is offered and is annular through-hole, just elastic component (8) and through-hole looks adaptation.

6. A long life oil spill proof universal joint cross as in claim 3 wherein: the novel sealing device is characterized in that the shaft sleeve (2), the sealing ring (4), the first sealing valve (5) and the second sealing valve (6) are all arranged in four, and the shaft sleeve (2), the sealing ring (4), the first sealing valve (5) and the second sealing valve (6) are distributed in an annular array mode.

7. The long life oil spill resistant universal joint cross as recited in claim 6, wherein: the clamping seats (7) and the elastic pieces (8) are all provided with eight, and the eight clamping seats (7) and the elastic pieces (8) are respectively arranged on the four first sealing petals (5).