Outer ball cage with dustproof structure

Abstract

This utility model discloses an outer ball cage with a dustproof structure, relating to the field of outer ball cage technology. It includes: an outer ball cage body, a drive shaft mounted on one side of the outer wall of the outer ball cage body, a mounting mechanism disposed between the outer ball cage body and the mounting mechanism, and a dustproof mechanism disposed between the outer ball cage body and the drive shaft. The dustproof mechanism includes a dust cover and a fixing component. The dust cover is movably fitted onto the outer wall of the outer ball cage body, and the fixing component is disposed on the outer ball cage body. This dustproof outer ball cage, through the mounting mechanism, allows the drive shaft to be detached from the outer ball cage body. When the dust cover needs to be replaced, the drive shaft can be removed with a simple rotation operation, thus facilitating the removal and installation of the dust cover without disassembling the entire outer ball cage and related transmission components, greatly shortening maintenance time and reducing maintenance costs. The dust cover is accurately fixed from both ends by the first and second fixing components.

Description

Technical Field

[0001] This utility model relates to the field of external ball cage technology, specifically an external ball cage with a dustproof structure. Background Technology

[0002] In automotive transmission systems, the outer CV joint is an important component of the constant velocity joint. It can smoothly and efficiently transmit the engine's power to the wheels, enabling stable driving of the vehicle under different driving conditions. However, during operation, the delicate transmission structure inside the outer CV joint is easily invaded by external dust, mud, and other impurities, which will accelerate the wear of internal components and lead to a decrease in transmission accuracy.

[0003] The authorized publication number "CN221665144U" describes "a dustproof external ball joint, comprising an input shaft, a dust cover, a bell-shaped cover, and an output shaft, wherein the bell-shaped cover has a cavity inside, one end of the bell-shaped cover has an opening communicating with the cavity, and the end of the input shaft extends into the cavity. The feature is that: a first dustproof ring is provided outside the opening, a second dustproof ring is sleeved on the input shaft, the dust cover wraps around the outside of the first and second dustproof rings, multiple first rubber strips are provided inside the first dustproof ring, and multiple second rubber strips are provided outside the second dustproof ring. The advantages of this utility model compared to the prior art are: the first and second dustproof rings are located inside the dust cover, which can form a certain barrier to prevent dust particles from entering when the dust cover is damaged; the ball joint already in use can be easily disassembled to install the first and second dustproof rings."

[0004] The first and second dustproof rings of the aforementioned patent are set inside the dustproof cover. When the dustproof cover is damaged, they can form a certain barrier to prevent dust particles from entering. Lubricating oil can be applied to the surface of the rubber strip to improve the ability to adsorb solid particles. However, the installation method of the aforementioned patented dustproof cover is relatively complicated and difficult to disassemble. When the dustproof cover is damaged and needs to be replaced, it often takes a lot of time and effort, and may even require disassembling the entire outer ball cage and related transmission components, which increases maintenance costs and time costs. Utility Model Content

[0005] This utility model provides an outer CV joint with a dustproof structure. Through the installation mechanism, the drive shaft and the outer CV joint body are detachable. When the dust cover needs to be replaced, the drive shaft can be removed with a simple rotation operation, thus facilitating the removal and installation of the dust cover without disassembling the entire outer CV joint and related transmission components. This greatly shortens maintenance time and reduces maintenance costs. The dust cover is fixed from both ends by the first and second fixing components, respectively, ensuring accurate positioning and firm installation. The cooperation between the positioning rod and the positioning hole, as well as the tightening effect of the double steel wire clamps, ensure that the dust cover will not shift or fall off during vehicle operation, guaranteeing the stability and reliability of the dustproof structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an outer ball cage with a dustproof structure, comprising:

[0007] Outer ball cage body;

[0008] The drive shaft is installed on one side of the outer wall of the outer ball cage body;

[0009] The installation mechanism is located between the outer ball cage body and the installation mechanism;

[0010] A dustproof mechanism is provided between the outer ball cage body and the drive shaft. The dustproof mechanism includes a dust cover and a fixing component. The dust cover is movably sleeved on the outer wall of the outer ball cage body, and the fixing component is provided on the outer ball cage body.

[0011] Furthermore, the mounting mechanism includes an internal threaded groove and an external threaded block. The internal threaded groove is formed on one side of the outer wall of the outer ball cage body, and the external threaded block is fixedly disposed on one side of the outer wall of the drive shaft. The external threaded block is threadedly connected to the inner wall of the internal threaded groove.

[0012] Furthermore, the fixing component includes a first limiting frame, a second limiting frame, a first fixing component, and a second fixing component. The first limiting frame is fixedly sleeved on the outer wall of the outer ball cage body, the second limiting frame is fixedly disposed on the outer wall of the drive shaft, and the first fixing component and the second fixing component are respectively disposed at both ends of the dust cover.

[0013] Furthermore, the first fixing component includes a mounting plate, multiple positioning holes, and multiple positioning rods. The mounting plate is fixedly disposed on the outer wall of the dust cover. Each positioning hole is equidistantly opened at the top of the outer wall of the mounting plate along the circumferential direction. Each positioning rod is equidistantly fixed at the top of the outer wall of the first limiting frame along the circumferential direction, and each positioning rod is slidably engaged with the positioning hole. The mounting plate is installed on one side of the outer wall of the first limiting frame by bolts.

[0014] Furthermore, the second fixing component includes a mounting frame and a double steel wire clamp. The mounting frame is fixedly disposed on the outer wall of the dust cover, the double steel wire clamp is installed on the outer wall of the mounting frame, and the dust cover is wrapped around the outer wall of the second limiting frame.

[0015] Furthermore, the dust cover is made of highly elastic silicone rubber and thermoplastic polyurethane.

[0016] This utility model provides an outer ball cage with a dustproof structure. It has the following beneficial effects:

[0017] (1) The dustproof outer CV joint allows the drive shaft to be detached from the outer CV joint body through the installation mechanism. When the dust cover needs to be replaced, the drive shaft can be removed by simple rotation, which makes it easy to remove and install the dust cover without disassembling the entire outer CV joint and related transmission components, greatly shortening the maintenance time and reducing the maintenance cost.

[0018] (2) The dustproof outer ball cage is fixed from both ends of the dust cover by the first fixing component and the second fixing component respectively. The positioning is accurate and the installation is firm. The cooperation between the positioning rod and the positioning hole and the tightening effect of the double steel wire clamp ensure that the dust cover will not be displaced or fall off during vehicle operation, thus ensuring the stability and reliability of the dustproof structure. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the outer ball cage body of this utility model;

[0022] Figure 4 This is an exploded view of the dustproof mechanism of this utility model.

[0023] In the diagram: 1. Outer ball cage body; 2. Drive shaft; 3. Mounting mechanism; 301. Internal threaded groove; 302. External threaded block; 4. Dustproof mechanism; 401. Dust cover; 402. First limit frame; 403. Second limit frame; 404. Mounting plate; 405. Positioning hole; 406. Positioning rod; 407. Double steel wire clamp; 408. Mounting frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an outer ball cage with a dustproof structure, comprising:

[0026] Outer ball cage body 1;

[0027] Drive shaft 2 is installed on one side of the outer wall of outer ball cage body 1;

[0028] The mounting mechanism 3 is located between the outer ball cage body 1 and the mounting mechanism 3;

[0029] The dustproof mechanism 4 is located between the outer ball cage body 1 and the drive shaft 2. The dustproof mechanism 4 includes a dust cover 401 and a fixing component. The dust cover 401 is movably sleeved on the outer wall of the outer ball cage body 1, and the fixing component is located on the outer ball cage body 1.

[0030] In this implementation scheme: the drive shaft 2 is responsible for transmitting power from the outer CV joint body 1 to the wheels or other transmission components to realize the power transmission of the vehicle. The installation mechanism 3 makes the drive shaft 2 and the outer CV joint body 1 detachable to facilitate the replacement of the dust cover 401. The dustproof mechanism 4 can prevent external dust from entering the interior of the outer CV joint. The dust cover 401 can prevent dust and impurities from entering the interior of the outer CV joint. The fixing component is used to firmly fix the dust cover 401 between the outer CV joint body 1 and the drive shaft 2, increasing the stability of the dust cover 401 installation.

[0031] Specifically, the installation mechanism 3 includes an internal threaded groove 301 and an external threaded block 302. The internal threaded groove 301 is opened on one side of the outer wall of the outer ball cage body 1, and the external threaded block 302 is fixedly installed on one side of the outer wall of the drive shaft 2. The external threaded block 302 is threadedly connected to the inner wall of the internal threaded groove 301.

[0032] In this embodiment, the threaded connection between the internal threaded groove 301 and the external threaded block 302 makes the installation and disassembly of the drive shaft 2 and the outer ball cage body 1 simple and quick. The connection or separation of the two can be achieved simply by rotating the drive shaft 2, which makes it easy to remove and install the dust cover 401 without disassembling the entire outer ball cage and related transmission components, greatly shortening the maintenance time and reducing the maintenance cost.

[0033] Specifically, the fixing components include a first limiting frame 402, a second limiting frame 403, a first fixing component, and a second fixing component. The first limiting frame 402 is fixedly sleeved on the outer wall of the outer ball cage body 1, the second limiting frame 403 is fixedly set on the outer wall of the drive shaft 2, and the first fixing component and the second fixing component are respectively set at both ends of the dust cover 401.

[0034] In this embodiment: the first limiting frame 402 and the second limiting frame 403 limit the installation position of the dust cover 401, and the first fixing component and the second fixing component fix both ends of the dust cover 401.

[0035] Specifically, the first fixing component includes a mounting plate 404, multiple positioning holes 405, and multiple positioning rods 406. The mounting plate 404 is fixedly disposed on the outer wall of the dust cover 401. Each positioning hole 405 is equidistantly opened at the top of the outer wall of the mounting plate 404 along the circumferential direction. Each positioning rod 406 is equidistantly disposed at the top of the outer wall of the first limiting frame 402 along the circumferential direction, and each positioning rod 406 is slidably engaged with the positioning hole 405. The mounting plate 404 is installed on one side of the outer wall of the first limiting frame 402 by bolts.

[0036] In this embodiment: when installing the dust cover 401, the positioning rod 406 is inserted into the corresponding positioning hole 405 to achieve the initial positioning of the dust cover 401. Then, the mounting plate 404 is installed on one side of the outer wall of the first limiting frame 402 by bolts, so that one end of the dust cover 401 is firmly fixed. This fixing method is accurate in positioning and firmly installed, which can effectively prevent the dust cover 401 from loosening during use.

[0037] Specifically, the second fixing component includes a mounting frame 408 and a double steel wire clamp 407. The mounting frame 408 is fixedly set on the outer wall of the dust cover 401, the double steel wire clamp 407 is installed on the outer wall of the mounting frame 408, and the dust cover 401 is wrapped around the outer wall of the second limiting frame 403.

[0038] In this embodiment, the dust cover 401 is tightly fixed to the second limiting frame 403 by the tightening action of the double steel wire clamp 407, which further enhances the sealing performance of the dust cover 401 and ensures that dust and impurities cannot enter the interior of the outer ball cage from the connection between the dust cover 401 and the drive shaft 2.

[0039] Specifically, the dust cover 401 is made of highly elastic silicone rubber and thermoplastic polyurethane.

[0040] In this embodiment, the dust cover 401 is a double-layer design. The inner layer is made of highly elastic silicone rubber with a smooth surface to reduce friction, and the outer layer is made of thermoplastic polyurethane to enhance tear resistance and UV resistance.

[0041] In use, first, the dust cover 401 is fitted onto the outer wall of the outer ball cage body 1, so that one end of the dust cover 401 is embedded in the first limiting frame 402. At the same time, the positioning rod 406 is inserted into the corresponding positioning hole 405 to achieve the initial positioning of the dust cover 401. Then, the mounting plate 404 is installed on one side of the outer wall of the first limiting frame 402 with bolts to firmly fix one end of the dust cover 401, which can effectively prevent the dust cover 401 from loosening during use. Then, the external thread block 302 of the drive shaft 2 is aligned with the internal thread groove 301 of the outer ball cage body 1, and slowly rotated. The drive shaft 2 is rotated so that the external threaded block 302 and the internal threaded groove 301 are tightly threaded together, realizing the installation of the drive shaft 2 and the outer ball cage body 1. At the same time, the second limiting frame 403 is wrapped around the other end of the dust cover 401, and the mounting frame 408 is wrapped around the outer wall of the second limiting frame 403. Through the tightening action of the double steel wire clamp 407, the dust cover 401 is tightly fixed on the second limiting frame 403, and the sealing performance of the dust cover 401 is further enhanced, ensuring that dust and impurities cannot enter the interior of the outer ball cage from the connection between the dust cover 401 and the drive shaft 2.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An outer ball cage with a dustproof structure, characterized in that, include: Outer ball cage body (1); The drive shaft (2) is installed on one side of the outer wall of the outer ball cage body (1); The installation mechanism (3) is located between the outer ball cage body (1) and the installation mechanism (3); A dustproof mechanism (4) is provided between the outer ball cage body (1) and the drive shaft (2). The dustproof mechanism (4) includes a dust cover (401) and a fixing component. The dust cover (401) is movably sleeved on the outer wall of the outer ball cage body (1), and the fixing component is provided on the outer ball cage body (1).

2. The outer ball cage with a dustproof structure according to claim 1, characterized in that: The installation mechanism (3) includes an internal threaded groove (301) and an external threaded block (302). The internal threaded groove (301) is opened on one side of the outer wall of the outer ball cage body (1), and the external threaded block (302) is fixedly installed on one side of the outer wall of the drive shaft (2). The external threaded block (302) is threadedly connected to the inner wall of the internal threaded groove (301).

3. The outer ball cage with a dustproof structure according to claim 2, characterized in that: The fixing components include a first limiting frame (402), a second limiting frame (403), a first fixing component, and a second fixing component. The first limiting frame (402) is fixedly sleeved on the outer wall of the outer ball cage body (1), and the second limiting frame (403) is fixedly disposed on the outer wall of the drive shaft (2). The first fixing component and the second fixing component are respectively disposed at both ends of the dust cover (401).

4. The outer ball cage with a dustproof structure according to claim 3, characterized in that: The first fixing component includes a mounting plate (404), a plurality of positioning holes (405) and a plurality of positioning rods (406). The mounting plate (404) is fixedly disposed on the outer wall of the dust cover (401). Each positioning hole (405) is equidistantly opened at the top of the outer wall of the mounting plate (404) along the circumferential direction. Each positioning rod (406) is equidistantly fixed at the top of the outer wall of the first limiting frame (402) along the circumferential direction. Each positioning rod (406) is slidably engaged with the positioning hole (405). The mounting plate (404) is installed on one side of the outer wall of the first limiting frame (402) by bolts.

5. The outer ball cage with a dustproof structure according to claim 4, characterized in that: The second fixing component includes a mounting frame (408) and a double steel wire clamp (407). The mounting frame (408) is fixedly disposed on the outer wall of the dust cover (401), and the double steel wire clamp (407) is installed on the outer wall of the mounting frame (408). The dust cover (401) is wrapped around the outer wall of the second limiting frame (403).

6. The outer ball cage with a dustproof structure according to claim 5, characterized in that: The dust cover (401) is made of high-elasticity silicone rubber and thermoplastic polyurethane.

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