Novel steering outer pull rod structure

Abstract

The utility model discloses a novel steering outer pull rod structure which comprises a ball pin shell, a ball pin base is fixedly connected to the end of the ball pin shell, a ball pin is connected to the inner wall of the ball pin base in an inserted mode, a fixing structure is arranged outside the ball pin, the fixing structure comprises a first upper shell, the first upper shell is connected to the inner wall of the ball pin shell in an inserted mode, and a second upper shell is arranged outside the first upper shell. And the lower part of the inner wall is attached to the outer wall of the ball pin seat. The utility model relates to the technical field of automobile parts, in particular to a novel steering outer pull rod structure which is characterized in that a first dustproof cover, a second upper shell, a second inner diameter, a second outer diameter, a second clamping ring and a second dustproof cover are matched; the device can be matched with dust covers with different large-end sizes, effectively avoids corrosion prevention failure caused by falling of a coating on the surface of a riveting edge of a ball pin shell, and solves the problems that multiple sets of dies need to be developed according to different swing angle requirements, and meanwhile, the coating in a riveting area falls off and loses the corrosion prevention effect due to the fact that an existing outer ball head assembly process is riveting.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a novel steering tie rod structure. Background Technology

[0002] In automotive steering systems, the outer steering tie rod is a crucial component connecting the steering knuckle and the steering tie rod. It engages with the knuckle arm via a ball joint cone. Depending on the hard points and overall vehicle layout requirements of different models, there are varying requirements for the swing angle of the outer ball joint. To ensure the required swing angle of the outer ball joint, the current process involves adjusting the size of the opening end.

[0003] Therefore, multiple sets of molds need to be developed to meet different swing angle requirements, and different dust covers need to be matched according to different customer requirements. Currently, there are two main dust cover structures: one with an internal clamp at the large end and the other with an external clamp at the large end. Even with other requirements being the same, different molds still need to be developed to accommodate the two dust cover structures. All of the above will result in high prices and too many models that are difficult to manage. At the same time, the current assembly process for the external ball joint is riveting, which causes the coating in the riveting area to peel off and lose its anti-corrosion effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel steering tie rod structure, which solves the problems of needing to develop multiple sets of molds for different swing angle requirements, needing to match different dust covers according to different customer requirements, still needing to develop different molds to cope with two dust cover structures, and the current external ball joint assembly process of press riveting, which causes the coating in the press riveting area to fall off and lose its anti-corrosion effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel steering tie rod structure, comprising a ball pin housing, a ball pin seat fixedly connected to the end of the ball pin housing, a ball pin inserted into the inner wall of the ball pin seat, and a fixing structure provided on the outside of the ball pin, the fixing structure comprising a first upper housing, the first upper housing being inserted into the inner wall of the ball pin housing, and the lower part of the inner wall being attached to the outer wall of the ball pin seat; a first retaining ring being snapped into the outer wall of the first upper housing; and a first dust cover being fixedly connected to the inner wall of the first retaining ring; wherein, the first dust cover is fixed to the ball pin housing by the first upper housing and the first retaining ring.

[0006] Preferably, the fixing structure includes a second upper housing, which is inserted into the inner wall of the ball pin housing and the lower part of the inner wall is attached to the outer wall of the ball pin seat; a second retaining ring is sleeved on the outer wall of the second upper housing; and a second dust cover is fixed to the inner wall of the second retaining ring; wherein the second dust cover is fixed to the ball pin housing by the second upper housing and the second retaining ring.

[0007] Preferably, the inner wall of the first upper shell has a first inner diameter, and the outer wall of the first upper shell has a first outer diameter.

[0008] Preferably, the inner wall of the second upper housing has a second inner diameter, and the outer wall of the second upper housing has a second outer diameter.

[0009] Preferably, a lubrication structure is provided below the ball pin housing. The lubrication structure includes a pipe that connects to the lower outer wall of the ball pin housing; a first channel is respectively opened in the inner wall of the ball pin housing and the inner wall of the ball pin seat, and is connected to the end of the pipe; a second channel is opened in the inner wall of the ball pin seat and is connected to the end of the first channel; an oil outlet is opened in the inner wall of the ball pin seat and is connected to the outer wall of the second channel; wherein, lubricating oil flows into the first channel through the pipe, then into the second channel, and finally flows into the bottom of the ball pin seat and the ball pin through the oil outlet.

[0010] Preferably, the beginning of the pipeline is connected to an oil storage tank, the oil storage tank is fixed to the bottom of the ball pin shell, and a pump body is fixed to the outer wall of the end of the pipeline near the oil storage tank.

[0011] This utility model provides a novel steering tie rod structure. It offers the following advantages: This novel steering tie rod structure, through the cooperation of a first upper housing, a first inner diameter, a first outer diameter, a first retaining ring, a first dust cover, a second upper housing, a second inner diameter, a second outer diameter, a second retaining ring, and a second dust cover, achieves compatibility with dust covers of different large-end sizes and effectively avoids corrosion failure caused by coating peeling off the surface coating of the ball joint shell riveting edge. It solves the problems of needing to develop multiple sets of molds for different swing angle requirements, needing to match different dust cover structures according to different customer requirements, still needing to develop different molds to accommodate two dust cover structures, and the current ball joint assembly process using press riveting, which leads to coating peeling off in the press riveting area and loss of corrosion protection.

[0012] By coordinating the pipes, oil reservoir, pump body, first channel, second channel, and oil outlet, an oil film is formed on the contact surface between the ball pin and the ball pin seat, which plays a lubricating role, reduces the coefficient of friction, and ensures that the steering tie rod can work smoothly and stably. This solves the problem of excessive wear caused by long-term dry friction or insufficient lubrication between the ball pin and the ball pin seat, which in turn affects the service life of the steering tie rod and the steering accuracy of the vehicle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 An exterior schematic diagram;

[0015] Figure 3 for Figure 1 Another structural diagram;

[0016] Figure 4 for Figure 1A schematic diagram of the structure of the first upper shell;

[0017] Figure 5 for Figure 3 Schematic diagram of the structure of the second upper shell;

[0018] Figure 6 for Figure 1 A schematic diagram of the structure of the central pipeline, oil storage tank, and first channel.

[0019] In the diagram: 1. Ball pin housing; 2. Ball pin; 3. Fixing structure; 31a. First upper housing; 311a. First inner diameter; 312a. First outer diameter; 32a. First retaining ring; 33a. First dust cover; 31b. Second upper housing; 311b. Second inner diameter; 312b. Second outer diameter; 32b. Second retaining ring; 33b. Second dust cover; 4. Lubrication structure; 41. Pipeline; 411. Oil reservoir; 412. Pump body; 42. First channel; 43. Second channel; 44. Oil outlet; 5. Ball pin seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Different swing angle requirements necessitate the development of multiple sets of molds. Different dust covers with different structures are required to meet the needs of different customers. To accommodate the two dust cover structures, different molds still need to be developed. Furthermore, the current assembly process for the external ball head is press riveting, which causes the coating in the press riveting area to peel off, resulting in a loss of anti-corrosion effect.

[0022] In view of this, the present invention provides a novel steering tie rod structure. Through the cooperation between the first upper housing, the first inner diameter, the first outer diameter, the first retaining ring, the first dust cover, the second upper housing, the second inner diameter, the second outer diameter, the second retaining ring, and the second dust cover, it achieves the ability to match dust covers with different large end sizes and effectively avoids the coating peeling off the surface of the ball joint shell riveting edge, which leads to corrosion failure. It solves the problems of needing to develop multiple sets of molds for different swing angle requirements, needing to match different dust covers according to different customer requirements, still needing to develop different molds to cope with two dust cover structures, and the current ball joint assembly process of press riveting, which causes the coating in the press riveting area to peel off, resulting in loss of corrosion protection.

[0023] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle below, where the electrical components are connected in the order of operation. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0024] Example 1, by Figure 1-5 As can be seen, the novel steering tie rod structure in this case includes a ball pin housing 1, a ball pin seat 5 fixedly connected to the end of the ball pin housing 1, a ball pin 2 inserted into the inner wall of the ball pin seat 5, and a fixing structure 3 provided on the outside of the ball pin 2. The fixing structure 3 includes a first upper housing 31a, a first retaining ring 32a, and a first retaining ring 32a. The first upper housing 31a is inserted into the inner wall of the ball pin housing 1, and the lower part of the inner wall is attached to the outer wall of the ball pin seat 5. The first retaining ring 32a is engaged with the outer wall of the first upper housing 31a. The first dust cover 33a is fixed to the inner wall of the first retaining ring 32a. The first dust cover 33a is fixed to the ball pin housing 1 by the first upper housing 31a and the first retaining ring 32a.

[0025] In the specific implementation process, it is worth noting that after the staff presses the ball pin 2 into the ball pin seat 5, the staff puts the whole into the concave hole inside the ball pin shell 1. The first upper shell 31a is provided with a positioning step. First, the first retaining ring 32a is fitted onto the outer wall of the first upper shell 31a and fits against the top flange of the first upper shell 31a. It is pressed into the reserved position of the ball pin shell 1 using an interference fit press machine. When pressing, a retaining adhesive is applied to the mating surface of the first upper shell 31a and the ball pin shell 1 to further improve the strength and ensure that the first upper shell 31a will not be pulled out when it is impacted. Alternatively, after pressing into the reserved position of the ball pin shell 1 using an interference fit press machine, the first retaining ring 32a is pressed down so that it passes over the top flange of the first upper shell 31a through its own elastic deformation and is locked between 31a and the ball pin shell 1. The first dust cover 33a and the first retaining ring 32a can be fixed by gluing, embedding or other methods.

[0026] Example 2, by Figure 3 , 4 As shown in Figure 5, the fixing structure 3 includes a second upper housing 31b, a second retaining ring 32b, and a second dust cover 33b. The second upper housing 31b is inserted into the inner wall of the ball pin housing 1, and the lower part of the inner wall is attached to the outer wall of the ball pin seat 5. The second retaining ring 32b is sleeved on the outer wall of the second upper housing 31b. The second dust cover 33b is fixed to the inner wall of the second retaining ring 32b. The second dust cover 33b is fixed to the ball pin housing 1 by means of the second upper housing 31b and the second retaining ring 32b.

[0027] In the specific implementation process, it is worth noting that after the staff presses the ball pin 2 into the ball pin seat 5, the whole assembly is placed into the inner hole of the ball pin shell 1. The second upper shell 31b is provided with a positioning step, and it is pressed into the design position with the ball pin shell 1 using an interference fit. When pressing, a retaining adhesive is applied to the mating surface of the second upper shell 31b and the ball pin shell 1 to further improve the strength and ensure that the second upper shell 31b will not be pulled out when subjected to impact. Finally, the staff presses the second dust cover 33b into the second retaining ring 32b using a press. The second retaining ring 32b and the second upper shell 31b can be fixed by threaded connection, welding or interference fit.

[0028] Furthermore, the inner wall of the first upper shell 31a is provided with a first inner diameter 311a, and the outer wall of the first upper shell 31a is provided with a first outer diameter 312a.

[0029] In the specific implementation process, it is worth noting that by adjusting the first inner diameter 311a on the first upper shell 31a, the staff can achieve different swing angles. By adjusting the first outer diameter 312a on the first inner diameter 311a, the first dust cover 33a with different large end sizes can be matched. At the same time, it can effectively prevent the coating on the riveted edge of the ball pin shell 1 from falling off, which would lead to corrosion failure.

[0030] Furthermore, the inner wall of the second upper housing 31b is provided with a second inner diameter 311b, and the outer wall of the second upper housing 31b is provided with a second outer diameter 312b.

[0031] In the specific implementation process, it is worth noting that the staff can achieve different swing angles by adjusting the second inner diameter 311b on the second upper shell 31b. By adjusting the second outer diameter 312b on the second upper shell 31b, the second dust cover 33b with different large end sizes can be matched, while effectively preventing the coating on the riveted edge of the ball pin shell 1 from falling off and causing corrosion failure.

[0032] Example 3, by Figure 1 , 2 As can be seen from points 3 and 6, a lubrication structure 4 is provided below the ball pin housing 1. The lubrication structure 4 includes a pipe 41, a first channel 42, a second channel 43, and an oil outlet 44. The pipe 41 is connected to the lower outer wall of the ball pin housing 1. The first channel 42 is opened on the inner wall of the ball pin housing 1 and the inner wall of the ball pin seat 5, and is connected to the end of the pipe 41. The second channel 43 is opened on the inner wall of the ball pin seat 5 and is connected to the end of the first channel 42. The oil outlet 44 is opened on the inner wall of the ball pin seat 5 and is connected to the outer wall of the second channel 43. Lubricating oil flows into the first channel 42 through the pipe 41, then into the second channel 43, and finally flows into the bottom of the ball pin seat 5 and the ball pin 2 through the oil outlet 44.

[0033] In the specific implementation process, it is worth noting that the lubricating oil flows into the first channel 42 through the pipe 41, then into the second channel 43 through the first channel 42, and finally into the oil outlet 44 through the second channel 43. The lubricating oil then flows into the bottom of the ball pin seat 5 and the ball pin 2 through the oil outlet 44, forming an oil film on the contact surface between the ball pin 2 and the ball pin seat 5, thereby achieving a lubricating effect, reducing the coefficient of friction, and ensuring that the steering tie rod can work smoothly and stably.

[0034] Furthermore, the beginning of the pipeline 41 is connected to an oil storage tank 411, the oil storage tank 411 is fixed to the bottom of the ball pin shell 1, and a pump body 412 is fixed to the outer wall of the end of the pipeline 41 near the oil storage tank 411.

[0035] In the specific implementation process, it is worth noting that the side of the oil storage tank 411 is connected to an oil inlet pipe, and a valve is fixed to the outer wall of the oil inlet. The operator opens the valve to inject lubricating oil into the oil storage tank 411 for storage. The pump body 412 is model CBF-F412.5-ALP. When lubrication is needed, the operator starts the pump body 412 to draw the lubricating oil from the oil storage tank 411 into the pipeline 41.

[0036] Specifically, when lubrication is required, the operator starts the pump body 412 to draw out the lubricating oil from the oil tank 411 and put it into the pipe 41. The lubricating oil then flows into the first channel 42 through the pipe 41.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel steering tie rod structure, comprising a ball pin housing (1), characterized in that: The ball pin housing (1) is fixedly connected to a ball pin seat (5) at its end. A ball pin (2) is inserted into the inner wall of the ball pin seat (5). A fixing structure (3) is provided on the outside of the ball pin (2). The fixing structure (3) includes: The first upper housing (31a) is inserted into the inner wall of the ball pin housing (1), and the lower part of the inner wall is attached to the outer wall of the ball pin seat (5); The first retaining ring (32a) is engaged with the outer wall of the first upper housing (31a); The first dust cover (33a) is fixed to the inner wall of the first retaining ring (32a); The first dust cover (33a) is fixed to the ball pin shell (1) by the first upper shell (31a) and the first retaining ring (32a).

2. The novel steering tie rod structure according to claim 1, characterized in that: The fixing structure (3) includes: The second upper housing (31b) is inserted into the inner wall of the ball pin housing (1), and the lower part of the inner wall is attached to the outer wall of the ball pin seat (5); The second retaining ring (32b) is fitted onto the outer wall of the second upper housing (31b); The second dust cover (33b) is fixed to the inner wall of the second retaining ring (32b); The second dust cover (33b) is fixed to the ball pin shell (1) by the second upper housing (31b) and the second retaining ring (32b).

3. The novel steering tie rod structure according to claim 1, characterized in that: The inner wall of the first upper shell (31a) is provided with a first inner diameter (311a), and the outer wall of the first upper shell (31a) is provided with a first outer diameter (312a).

4. A novel steering tie rod structure according to claim 2, characterized in that: The inner wall of the second upper housing (31b) is provided with a second inner diameter (311b), and the outer wall of the second upper housing (31b) is provided with a second outer diameter (312b).

5. A novel steering tie rod structure according to claim 1, characterized in that: A lubrication structure (4) is provided below the ball pin housing (1), the lubrication structure (4) comprising: Pipe (41) is connected to the lower part of the outer wall of the ball pin shell (1); The first channel (42) is respectively opened on the inner wall of the ball pin shell (1) and the inner wall of the ball pin seat (5), and is connected to the end of the pipe (41); The second channel (43) is opened on the inner wall of the ball pin seat (5) and is connected to the end of the first channel (42); The oil outlet (44) is located on the inner wall of the ball pin seat (5) and is connected to the outer wall of the second channel (43); The lubricating oil flows into the first channel (42) through the pipe (41), then into the second channel (43), and finally into the bottom of the ball pin seat (5) and the ball pin (2) through the oil outlet (44).

6. A novel steering tie rod structure according to claim 5, characterized in that: The beginning of the pipe (41) is connected to an oil storage tank (411), the oil storage tank (411) is fixed to the bottom of the ball pin shell (1), and a pump body (412) is fixed to the outer wall of the end of the pipe (41) near the oil storage tank (411).

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