CN218118394U

CN218118394U - Cold extrusion maintenance-free thin-wall universal joint

Info

Publication number: CN218118394U
Application number: CN202222727353.4U
Authority: CN
Inventors: 傅海锋; 王俊男
Original assignee: HANGZHOU DINGJIANG MACHINERY CO Ltd
Current assignee: HANGZHOU DINGJIANG MACHINERY CO Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-23
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to a cold extrusion non-maintaining thin wall universal joint of universal joint technical field, including the cross, the one end fixedly connected with dust cover of cross, the one end fixedly connected with axle sleeve of dust cover, the inner wall fixedly connected with sealing washer of axle sleeve one end, the fixed surface of dust cover is connected with anti resistant layer, the fixed surface of anticorrosive coating is connected with the wearing layer. The anti-abrasion layer, the anti-stretching layer, the anti-corrosion layer and the anti-abrasion layer are added to the outer wall of the dust cover in a reinforced mode to play a role in protecting the dust cover, when a vehicle runs, the dust cover is likely to be damaged due to long time in the process of stretching at one end of the universal joint, and therefore the protective layer is added to the surface of the dust cover to play a role in prolonging the service life of the dust cover, and the problem that the protective cover is prone to damage in the prior art is solved; the sealing ring is arranged at one end of the shaft sleeve to play a role in enhancing the sealing performance between the shaft sleeve and the dust cover, and the function of avoiding side leakage between the shaft sleeve and the dust cover is achieved.

Description

Cold extrusion maintenance-free thin-wall universal joint

Technical Field

The utility model relates to a universal joint technical field especially relates to a cold extrusion non-maintaining thin wall universal joint.

Background

The universal joint is a universal joint, and is a machine part for realizing variable-angle power transmission, is used for changing the position of a transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The universal joint is combined with a transmission shaft and is called a universal joint transmission device. On a vehicle driven by a rear wheel of a front engine, a universal joint transmission device is arranged between an output shaft of a transmission and an input shaft of a main speed reducer of a drive axle; the front engine front wheel driven vehicle omits a transmission shaft, and the universal joint is arranged between a front axle half shaft which is responsible for driving and steering and wheels. Unequal velocity universal joints. The universal joint has two shafts connected via universal joint, and when the included angle between the two shafts is greater than zero, the output shaft and the input shaft transmit motion in varying instantaneous angular speed ratio and average angular speed is the same. The cross shaft type rigid universal joint consists of a universal joint fork, a cross shaft, a needle bearing, an oil seal, a sleeve, a bearing cover and the like. The working principle is as follows: one of the rotating forks drives the other fork to rotate through the cross shaft and can swing in any direction around the center of the cross shaft. The needles in the needle bearings can spin during rotation to reduce friction. The shaft connected with the input power is called an input shaft (also called a driving shaft), and the shaft output through the universal joint is called an output shaft (also called a driven shaft). Operating with an angle between the input and output shafts, the angular velocities of the shafts are unequal and therefore can cause torsional vibration of the output shaft and the associated transmission components and affect the life of those components.

The Chinese patent discloses a novel cold extrusion maintenance-free thin-wall universal joint, and the publication number is CN 210174627U, and it is to be solved that in the prior art, the uneven road surface of an automobile in operation generates jumping, the load changes or the potential difference of two assembly installation, and the included angle and the distance between an output shaft of a transmission and an input shaft of a drive axle main reducer can be changed, so that the universal joint transmission form of a rear drive automobile adopts double universal joints, namely, two ends of a transmission shaft are respectively provided with a universal joint, and the included angles at two ends of the transmission shaft are equal, so that the instantaneous angular speeds of the output shaft and the input shaft are always equal, but the vibration amplitude is too large, the bearing load force of the universal joints is too large, the structural deformation of the transmission shaft is easy to generate, the application well solves the problem, but the dust cover is not protected, and the service life of the dust cover can be reduced.

Therefore, a cold extrusion maintenance-free thin-wall universal joint is provided.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a cold extrusion non-maintaining thin wall universal joint has the effect of protection casing.

The technical scheme of the utility model is that: the utility model provides a cold extrusion non-maintaining thin wall universal joint, includes the cross, the one end fixedly connected with dust cover of cross, the one end fixedly connected with axle sleeve of dust cover, the inner wall fixedly connected with sealing washer of axle sleeve one end, the fixed surface of dust cover is connected with resistant layer, the fixed surface on resistant layer is connected with the tensile layer, the fixed surface on tensile layer is connected with the anticorrosive coating, the fixed surface on anticorrosive coating is connected with the wearing layer.

In a further technical scheme, the sealing ring is made of rubber, and plays a role in enhancing the sealing performance between the dust cover and the shaft sleeve.

In a further technical scheme, the material of the anti-corrosion layer is graphite, and the material of the anti-corrosion layer is graphite, so that the anti-corrosion layer has high temperature resistance and has a high temperature resistance effect.

In a further technical scheme, the material of the anti-stretching layer is anti-stretching fiber, and the anti-stretching layer is made of the anti-stretching fiber, so that the anti-stretching layer has anti-stretching performance and plays a role in anti-stretching.

In a further technical scheme, the anticorrosive coating is made of tetrafluoroethylene, and the tetrafluoroethylene has anticorrosive performance and plays a role in corrosion prevention.

In a further technical scheme, the wear-resistant layer is made of polyurethane, so that the wear-resistant layer has wear-resistant performance and has a wear-resistant effect, and the service life of the wear-resistant layer can be prolonged.

In a further technical scheme, the number of dust cover is four, and the cross-sectional dimension is the same, plays and carries out antidetonation effect at different angles.

The beneficial effects of the utility model are that:

1. the anti-abrasion layer, the anti-stretching layer, the anti-corrosion layer and the anti-abrasion layer are added to the outer wall of the dust cover in a reinforced mode to play a role in protecting the dust cover, when a vehicle runs, the dust cover is likely to be damaged due to long time in the process of stretching at one end of the universal joint, and therefore the protective layer is added to the surface of the dust cover to play a role in prolonging the service life of the dust cover, and the problem that the protective cover is prone to damage in the prior art is solved;

2. the sealing ring is arranged at one end of the shaft sleeve to play a role in enhancing the sealing performance between the shaft sleeve and the dust cover, and the function of avoiding side leakage between the shaft sleeve and the dust cover is achieved.

Drawings

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

FIG. 2 is a schematic sectional view of the embodiment of the present invention shown in FIG. 1;

fig. 3 is an enlarged schematic structural view of embodiment a of the present invention;

FIG. 4 is a schematic sectional view of a dust cover according to an embodiment of the present invention;

fig. 5 is a schematic side view of the sealing ring according to the embodiment of the present invention.

Description of reference numerals:

the dustproof universal joint comprises a universal joint pin 1, a dustproof cover 2, a shaft sleeve 3, a sealing ring 4, an anti-corrosion layer 5, an anti-stretching layer 6, an anti-corrosion layer 7 and a wear-resistant layer 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

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 drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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 indicated based on 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.

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; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example (b):

as shown in fig. 1-5, a thin-walled universal joint free of maintenance is extruded in a cold mode, including a cross shaft 1, play the role of enhancing the sealing performance between the universal joint and a dustproof cover 2 by arranging a sealing ring 4 at one end of a shaft sleeve 3, play the role of avoiding side leakage between the shaft sleeve 3 and the dustproof cover 2, add an anti-wear layer 5 through strengthening the outer wall of the dustproof cover 2, an anti-stretching layer 6, an anti-corrosion layer 7 and a wear layer 8 play the role of protecting the dustproof cover 2, when a vehicle runs, the dustproof cover 2 is likely to cause damage to the dustproof cover 2 after a long time in the process of stretching at one end of the universal joint, therefore, an additional protective layer on the surface of the dustproof cover 2 plays the role of prolonging the service life of the dustproof cover 2, the effect that the protective cover 2 is likely to be damaged in the prior art is solved, the one end of the cross shaft 1 is fixedly connected with the dustproof cover 2, the one end of the dust cover 2 is fixedly connected with the shaft sleeve 3, the inner wall at one end of the shaft sleeve 3 is fixedly connected with the sealing ring 4, the surface of the anti-wear layer 5 is fixedly connected with the anti-wear layer 6, the anti-stretching layer 7 is connected with the surface of the dustproof cover 8.

The working principle of the technical scheme is as follows:

the cold extrusion maintenance-free thin-wall universal joint has the characteristics of wear resistance and long service life by adding the anti-resistant layer 5, the anti-stretching layer 6, the anti-corrosion layer 7 and the wear-resistant layer 8 on the outer wall of the dust cover 2, so that the stability and the safety reliability of vehicle operation are improved, and the vibration amplitude of vehicle bumping is reduced.

In another embodiment, as shown in fig. 5, the material of the sealing ring 4 is rubber.

Plays a role in enhancing the sealing performance between the dust cover 2 and the sleeve 3.

In another embodiment, as shown in fig. 4, the material of the resistant layer 5 is graphite.

The material of the anti-corrosion layer 5 is graphite, so that the anti-corrosion layer has high-temperature resistance and has a high-temperature resistance effect.

In another embodiment, as shown in fig. 4, the material of the stretch resistant layer 6 is a tensile fiber.

The tensile layer 6 is made of tensile fiber, so that tensile property is achieved, and the tensile effect is achieved.

In another embodiment, as shown in fig. 4, the material of the corrosion protection layer 7 is tetrafluoroethylene.

The material of the anticorrosive layer 7 is tetrafluoroethylene, so that the anticorrosive effect is achieved.

In another embodiment, as shown in fig. 4, the material of the wear layer 8 is polyurethane.

The wear-resistant layer 8 is made of polyurethane, so that the wear-resistant layer has wear-resistant performance, plays a wear-resistant role and can prolong the service life.

In another embodiment, as shown in FIG. 4, the dust cap 2 is four in number and has the same cross-sectional dimensions.

The function of resisting earthquake at different angles is achieved.

The above embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a cold extrusion non-maintaining thin wall universal joint, includes cross (1), its characterized in that: the one end fixedly connected with dust cover (2) of cross axle (1), the one end fixedly connected with axle sleeve (3) of dust cover (2), the inner wall fixedly connected with sealing washer (4) of axle sleeve (3) one end, the fixed surface of dust cover (2) is connected with resistant layer (5), the fixed surface of resistant layer (5) is connected with stretch-proofing layer (6), the fixed surface of stretch-proofing layer (6) is connected with anticorrosive coating (7), the fixed surface of anticorrosive coating (7) is connected with wearing layer (8).

2. A cold extrusion maintenance-free thin wall universal joint according to claim 1, wherein: the sealing ring (4) is made of rubber.

3. A cold extrusion maintenance-free thin wall universal joint according to claim 1, wherein: the material of the resistant layer (5) is graphite.

4. A cold extrusion maintenance-free thin-walled gimbal according to claim 1, wherein: the material of the anti-stretching layer (6) is tensile fiber.

5. A cold extrusion maintenance-free thin-walled gimbal according to claim 1, wherein: the anticorrosive layer (7) is made of tetrafluoroethylene.

6. A cold extrusion maintenance-free thin-walled gimbal according to claim 1, wherein: the wear-resistant layer (8) is made of polyurethane.

7. A cold extrusion maintenance-free thin-walled gimbal according to claim 1, wherein: the number of the dust covers (2) is four, and the sectional sizes are the same.