CN218582106U

CN218582106U - Universal joint and vehicle with same

Info

Publication number: CN218582106U
Application number: CN202222806085.5U
Authority: CN
Inventors: 路宽; 董占新; 于绍峰; 吴永彬
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-07
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a universal joint and vehicle that has it, the universal joint includes: the cross shaft comprises a shaft body part and a shaft head part, wherein the shaft head part is connected with the shaft body part, and a sealing surface is formed on the outer peripheral wall of one end, close to the shaft body part, of the shaft head part; the shaft sleeve is sleeved at the shaft head part; and one end of the dust cover is hermetically sleeved outside the sealing surface, and the other end of the dust cover is hermetically sleeved outside the shaft sleeve. The utility model discloses an universal joint, the sealed cover of one end of its dust cover is located outside the sealing surface to the one end and the sealed cooperation of cross of making the dust cover, and the sealed cover of the other end of dust cover is located outside the axle sleeve, so that the other end and the sealed cooperation of axle sleeve of dust cover, thereby be convenient for strengthen the leakproofness of dust cover, cause the damage to the oil blanket in order to prevent that impurity from entering into universal joint is inside, do benefit to improvement universal joint life.

Description

Universal joint and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a universal joint and vehicle that has it are related to.

Background

The propeller shaft assembly is an extremely important part in an automobile chassis system, and particularly, a universal joint in the propeller shaft assembly needs to have good sealing performance.

However, in the prior art, part of the universal joint is not provided with a dust cover assembly, an oil seal of the universal joint is directly exposed in the external environment, and impurities in the environment can directly damage the oil seal, so that the universal joint fails; another part universal joint has the dust cover subassembly, but its dust cover subassembly is fixed on the axle sleeve, leads to there being the clearance between dust cover subassembly and the cross axle, can not effectively prevent the entering of tiny particle, can't effectively keep apart external environment, can't guarantee the sealing performance of universal joint promptly, has reduced the life of universal joint.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a universal joint can strengthen the leakproofness of dust cover to prevent that impurity from entering into the universal joint inside and causing the damage to the oil blanket, do benefit to and improve universal joint life.

According to the utility model discloses universal joint, include: the cross shaft comprises a shaft body part and a shaft head part, wherein the shaft head part is connected with the shaft body part, and a sealing surface is formed on the outer peripheral wall of one end, close to the shaft body part, of the shaft head part; the shaft sleeve is sleeved at the shaft head part; and one end of the dust cover is hermetically sleeved outside the sealing surface, and the other end of the dust cover is hermetically sleeved outside the shaft sleeve.

According to the utility model discloses the universal joint, the sealed cover of one end of its dust cover is located outside the sealing surface to the one end and the sealed cooperation of cross of making the dust cover, and the sealed cover of the other end of dust cover is located outside the axle sleeve, so that the other end and the sealed cooperation of axle sleeve of dust cover, thereby be convenient for strengthen the leakproofness of dust cover, cause the damage to the oil blanket in order to prevent that impurity from entering into the universal joint is inside, do benefit to improvement universal joint life.

According to the utility model discloses the universal joint of some embodiments, the dust cover includes axial part and radial portion, axial part with radial portion buckles and links to each other, just the axial part deviates from the one end of radial portion cup joint in outside the axle sleeve, radial portion cup joint in outside the sealing surface.

According to the utility model discloses the universal joint of some embodiments, the axle head portion with the periphery wall of the one end that the axle body portion links to each other is formed with the cooperation annular, the radial inner of radial portion extends in the cooperation annular with sealed face offsets.

According to the utility model discloses the universal joint of some embodiments, the internal face of cooperation annular including support the pressure face with sealed face, the inner peripheral surface of radial portion support press in sealed face, the deviation of radial portion the inside part laminating of the terminal surface of axial portion in support the pressure face.

According to the utility model discloses the universal joint of some embodiments, the axle sleeve is equipped with the sealing, the sealing with the axial region is just right.

According to some embodiments of the invention, the sealing portion is configured as a sealing ring groove, the sealing ring groove facing the axial portion.

According to some embodiments of the universal joint of the present invention, the seal ring groove has a plurality of, a plurality of the seal ring grooves are distributed along the axial interval of the shaft sleeve.

According to the utility model discloses the universal joint of some embodiments, axial part with axle sleeve clearance fit.

According to the utility model discloses the universal joint of some embodiments, the axle sleeve with the dust cover all has a plurality ofly, and is a plurality of the dust cover is with a plurality of the axle sleeve one-to-one.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle, including any one above-mentioned embodiment universal joint.

The vehicle has the same advantages as the universal joint described above with respect to the prior art and will not be described in detail here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic illustration of a gimbal according to some embodiments of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic view of the sleeve of the universal joint shown in fig. 1.

Reference numerals are as follows:

the joint (100) is a universal joint,

cross 10, sealing surface 101, abutment surface 102,

the shaft body portion 11, the shaft head portion 12,

the axial sleeve 20, the sealing ring groove 21,

the dust shield 30, the axial portion 31, the radial portion 32,

oil seal 40, kingpin 50, abrasionproof pad 60.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A universal joint 100 according to an embodiment of the present invention is described below with reference to fig. 1-3.

According to the utility model discloses universal joint 100, include: cross 10, sleeve 20, and dust shield 30.

Specifically, the universal joint pin 10 includes a shaft body 11 and a shaft head 12, the shaft head 12 is connected to the shaft body 11, the shaft head 12 is formed with a sealing surface 101 at an outer peripheral wall near one end of the shaft body 11, the shaft sleeve 20 is sleeved on the shaft head 12, one end (left end in fig. 1) of the dust cover 30 is sleeved outside the sealing surface 101 in a sealing manner, and the other end (right end in fig. 1) of the dust cover 30 is sleeved outside the shaft sleeve 20 in a sealing manner.

It will be appreciated that one end (the left end in fig. 1) of the dust cap 30 is mounted to the end of the shaft head portion 12 near the shaft body portion 11, i.e., the dust cap 30 is mounted to the connection of the shaft body portion 11 and the shaft head portion 12.

Wherein, locate the one end (as the left end in fig. 1) sealing sleeve of dust cover 30 outside sealed face 101 to be fixed in dust cover 30 on cross 10, be convenient for strengthen dust cover 30's structural stability, and make dust cover 30 and cross 10 sealing fit, in order to strengthen the leakproofness between dust cover 30 and the cross 10, avoid impurity to enter into the inside oil blanket 40 that causes of universal joint 100 by the clearance between dust cover 30 and the cross 10.

Further, the other end (right end in fig. 1) of the dust cover 30 is sleeved outside the shaft sleeve 20 in a sealing manner, that is, the other end of the dust cover 30 is in sealing fit with the shaft sleeve 20, so that the sealing performance between the dust cover 30 and the shaft sleeve 20 is enhanced, the oil seal 40 is prevented from being damaged by impurities entering the universal joint 100, and the service life of the universal joint 100 is prolonged.

For example, as shown in fig. 1, the universal joint 100 includes a cross 10, a dust cover 30, an oil seal 40, a sleeve 20, a needle roller 50, and an anti-wear pad 60, the cross 10 includes a shaft portion 11 and four shaft head portions 12, four sleeve portions 20 are provided, one axial end of each sleeve portion 20 has an open opening, and the other axial end of each sleeve portion 20 is of a closed structure, so that the sleeve portion 12 can be sleeved with the sleeve 20, and when the sleeve portion 20 is mounted on the shaft head portion 12, the open opening of the sleeve portion 20 is open toward the shaft portion 11.

The four shaft sleeves 20 are respectively sleeved on the four shaft head portions 12, an anti-abrasion pad 60 is installed between one end of each shaft head portion 12, which is away from the shaft body portion 11, and the inner side bottom of each shaft sleeve 20, so as to reduce friction between the shaft head portion 12 and the corresponding shaft sleeve 20, a plurality of roller pins 50 are arranged between the outer peripheral wall of each shaft head portion 12 and the inner peripheral wall of each shaft sleeve 20, the oil seal 40 is installed at an opening of each shaft sleeve 20, a sealing surface 101 is formed on the outer peripheral wall of one end, which is close to the shaft body portion 11, of each shaft head portion 12, the sealing surface 101 is located on one side, which is far away from the shaft sleeve 20, of each oil seal 40, one end of each dust cover 30 is installed on the corresponding sealing surface 101, the other end of each dust cover 30 is hermetically sleeved outside the shaft sleeve 20, so that the oil seal 40 is located in an installation space defined by the shaft sleeves 20 and the dust covers 30, and therefore the oil seal 40 is protected, and external impurities are prevented from entering the universal joint 100 to damage the oil seal 40.

From this, install dust cover 30 on cross 10, be convenient for strengthen dust cover 30's structural stability, and make dust cover 30 and the sealed cooperation of cross 10, with the leakproofness between reinforcing dust cover 30 and the cross 10, avoid impurity to enter into the inside damage to oil blanket 40 of universal joint 100 by the clearance between dust cover 30 and the cross 10, and outside the axle sleeve 20 was located to the other end (as the right-hand member in fig. 1) sealing cover of dust cover 30, the other end and the sealed cooperation of axle sleeve 20 of dust cover 30 promptly, thereby strengthen the leakproofness between dust cover 30 and the axle sleeve 20, in order to prevent that impurity from entering into the inside damage to oil blanket 40 of universal joint 100, do benefit to improvement universal joint 100 life.

According to the utility model discloses universal joint 100, the sealed cover of one end of its dust cover 30 is located outside sealed face 101 to make the one end of dust cover 30 and the sealed cooperation of cross 10, and the other end seal cover of dust cover 30 locates outside the axle sleeve 20, so that the other end of dust cover 30 and the sealed cooperation of axle sleeve 20, thereby be convenient for strengthen the leakproofness of dust cover 30, to prevent that impurity from entering into universal joint 100 inside and causing the damage to oil blanket 40, do benefit to improvement universal joint 100 life.

In some embodiments, as shown in fig. 2, the dust cover 30 includes an axial portion 31 and a radial portion 32, the axial portion 31 is connected to the radial portion 32 in a bent manner, an end of the axial portion 31 facing away from the radial portion 32 is sleeved outside the sleeve 20, and the radial portion 32 is sleeved outside the sealing surface 101.

Therefore, the design difficulty of the dust cover 30 is reduced, wherein the radial portion 32 is sleeved outside the sealing surface 101 so as to enhance the connection stability between the radial portion 32 and the cross shaft 10, and one end of the axial portion 31, which is away from the radial portion 32, is sleeved outside the shaft sleeve 20 in the radial direction, so that the projection of at least part of the axial portion 31 in the radial direction of the shaft head portion 12 falls on the shaft sleeve 20, and the sealing performance between the axial portion 31 and the shaft sleeve 20 is enhanced.

It should be noted that, the oil seal 40 is installed in the opening department of axle sleeve 20, after actual assembly, as shown in fig. 2, the oil seal 40 exposes in the outside of axle sleeve 20 towards at least part of the one end of axle body portion 11, and the utility model discloses in, through cup jointing the radial portion 32 of dust cover 30 outside sealed face 101, and the axial portion 31 of dust cover 30 cup joints outside axle sleeve 20 to play the effect of sheltering from to oil seal 40, prevent that impurity from entering into the inside damage that causes oil seal 40 of universal joint 100, do benefit to and improve universal joint 100 life.

Further, the shaft head portion 12 is formed with a fitting annular groove in an outer peripheral wall of an end connected to the shaft body portion 11, and a radially inner end of the radial portion 32 extends into the fitting annular groove to abut against the sealing surface 101.

Therefore, the radial part 32 is installed in the matching ring groove, so that the radial part 32 is conveniently limited and fixed through the matching ring groove, and the structural stability of the radial part 32 is enhanced.

Further, the inner wall surface of the fitting ring groove includes a pressing surface 102 and a sealing surface 101, the inner peripheral surface of the radial portion 32 is pressed against the sealing surface 101, and an inner portion of the end surface of the radial portion 32 facing away from the axial portion 31 is fitted against the pressing surface 102.

Thereby, it is facilitated to increase a contact area of the radial portion 32 and the mating ring groove to enhance the structural stability of the radial portion 32.

In some embodiments, dust cap 30 may be press fit onto cross-shaft 10, thereby facilitating enhanced structural stability of dust cap 30.

In some embodiments, as shown in fig. 2, the sleeve 20 is provided with a sealing portion, which is directly opposite to the axial portion 31.

From this, through setting up the sealing to sealing and axial part 31 sealing cooperation, thereby reinforcing dust cover 30's leakproofness, in order to prevent that impurity from entering into the inside damage to oil blanket 40 that causes of universal joint 100, do benefit to and improve universal joint 100 life.

Further, as shown in fig. 2 and 3, the seal portion is configured as a seal ring groove 21, and the seal ring groove 21 is open toward the axial portion 31.

Thus, by configuring the sealing portion as the seal ring groove 21, the liquid impurities and the fine particle impurities can enter the seal ring groove 21, that is, the seal ring groove 21 can store the liquid impurities and the fine particle impurities, thereby enhancing the sealing effect.

Optionally, the sealing ring groove 21 has a plurality of sealing ring grooves 21, and the plurality of sealing ring grooves 21 are distributed at intervals along the axial direction of the shaft sleeve 20.

For example, as shown in fig. 3, the sealing ring grooves 21 are two, and the two sealing ring grooves 21 are spaced apart from each other in the axial direction of the shaft sleeve 20, so that the storage capacity of the sealing ring grooves 21 for liquid impurities and fine particle impurities can be enhanced, and the sealing effect can be enhanced.

Of course, the number of sealing ring grooves 21 may be other, and the two sealing ring grooves 21 are only used for illustration and do not represent a limitation.

In some embodiments, the axial portion 31 is a clearance fit with the sleeve 20.

That is, there is a certain gap between the radially inner side of the axial portion 31 and the radially outer side of the sleeve 20, but the gap is small in size, on one hand, it is possible to prevent large-sized impurities from entering the inside of the universal joint 100 to damage the oil seal 40, and on the other hand, so that liquid impurities and fine particle impurities can enter the seal ring groove 21 to be stored by the seal ring groove 21, thereby enhancing the sealing effect.

In some embodiments, there are multiple bushings 20 and dust caps 30, with one-to-one correspondence between multiple dust caps 30 and multiple bushings 20.

For example, as shown in fig. 1, the cross 10 includes a shaft portion 11 and four shaft head portions 12, four shaft sleeves 20 are provided, and four shaft head portions 12, four shaft sleeves 20 and four dust covers 30 are respectively provided in a one-to-one correspondence manner, that is, each shaft head portion 12 is provided with one shaft sleeve 20 and one corresponding dust cover 30.

Therefore, each dust cover 30 can be matched with the corresponding shaft sleeve 20 conveniently, the sealing performance of the universal joint 100 is enhanced, impurities are prevented from entering the universal joint 100 to damage the oil seal 40, and the service life of the universal joint 100 is prolonged.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle, including any one above-mentioned embodiment universal joint 100.

According to the utility model discloses vehicle, the one end seal cover of its universal joint 100's dust cover 30 is located outside sealed face 101 to make the one end of dust cover 30 and the sealed cooperation of cross 10, and the other end seal cover of dust cover 30 locates outside the axle sleeve 20, so that the other end of dust cover 30 and the sealed cooperation of axle sleeve 20, thereby be convenient for strengthen the leakproofness of dust cover 30, cause the damage to oil blanket 40 in order to prevent that impurity from entering into universal joint 100 is inside, do benefit to improvement universal joint 100 life.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A universal joint (100), comprising:

the universal joint pin (10), the universal joint pin (10) comprises a pin body part (11) and a pin head part (12), the pin head part (12) is connected with the pin body part (11), and the pin head part (12) is provided with a sealing surface (101) at the outer peripheral wall close to one end of the pin body part (11);

the shaft sleeve (20), the said shaft sleeve (20) is fitted on the said axle head (12);

one end of the dust cover (30) is sleeved outside the sealing surface (101) in a sealing manner, and the other end of the dust cover (30) is sleeved outside the shaft sleeve (20) in a sealing manner.

2. The universal joint (100) according to claim 1, wherein the dust cover (30) comprises an axial portion (31) and a radial portion (32), the axial portion (31) and the radial portion (32) are connected in a bending manner, one end of the axial portion (31) facing away from the radial portion (32) is sleeved outside the shaft sleeve (20), and the radial portion (32) is sleeved outside the sealing surface (101).

3. A joint (100) according to claim 2, wherein the head portion (12) is formed with a mating annular groove in the peripheral wall at the end connected to the body portion (11), the radially inner end of the radial portion (32) extending into the mating annular groove to abut against the sealing surface (101).

4. A joint (100) according to claim 3, wherein the inner wall surface of the mating ring groove comprises an abutting surface (102) and the sealing surface (101), the inner circumferential surface of the radial portion (32) abuts against the sealing surface (101), and an inner portion of the end surface of the radial portion (32) facing away from the axial portion (31) abuts against the abutting surface (102).

5. A joint (100) according to claim 2, wherein said sleeve (20) is provided with a sealing portion, said sealing portion being opposite to said axial portion (31).

6. The joint (100) according to claim 5, wherein the sealing portion is configured as a sealing ring groove (21), the sealing ring groove (21) being open towards the axial portion (31).

7. The joint (100) according to claim 6, wherein the sealing ring groove (21) has a plurality, and the plurality of sealing ring grooves (21) are distributed at intervals in the axial direction of the sleeve (20).

8. A joint (100) according to claim 2, wherein the axial portion (31) is clearance-fitted with the sleeve (20).

9. The universal joint (100) according to claim 1, wherein each of said sleeve (20) and said dust cover (30) has a plurality of said dust covers (30) and said sleeve (20) in a one-to-one correspondence.

10. A vehicle, characterized in that it comprises a joint (100) according to any one of claims 1-9.