High-precision front and rear steering knuckles of automotive brake

Abstract

The utility model relates to the technical field of steering knuckles, and discloses a high-precision automotive brake front and rear steering knuckle which comprises a steering knuckle body and a steering knuckle shaft body. And the split type connecting mechanism is arranged at the joint of the steering knuckle main body and the steering knuckle shaft body, and the split type connecting mechanism is used for facilitating maintenance personnel to split the steering knuckle main body and the steering knuckle shaft body. Through the integral design of the split type connecting mechanism, the bolt is disassembled from the inner cavity of the threaded hole, and then the inserting block can be pulled out from the interior of the square groove, so that the function of splitting the steering knuckle main body and the steering knuckle shaft body is realized, and on the contrary, the steering knuckle main body and the steering knuckle shaft body can be connected, and in the maintenance process, the steering knuckle main body and the steering knuckle shaft body can be conveniently detached. After the parts of the steering knuckle main body or the steering knuckle shaft body are damaged, the steering knuckle main body or the steering knuckle shaft body is directly replaced, the whole steering knuckle main body or the whole steering knuckle shaft body does not need to be replaced, and the maintenance cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of steering knuckle technology, specifically to a high-precision front and rear steering knuckle for automotive brakes. Background Technology

[0002] High-precision automotive brake and steering knuckle components are widely used in various types of vehicles, especially those requiring high driving stability and steering precision. By employing high-precision machining processes and high-quality materials, the stability and durability of the steering knuckles are ensured during long-term use. The steering knuckle, also known as the "steering knuckle," enables stable vehicle driving and sensitive transmission of driving direction. Its main function is to transmit and bear the load of the front of the vehicle, supporting and driving the front wheels to rotate around the kingpin, thereby steering the vehicle.

[0003] Chinese patent discloses a rust-proof steering knuckle, publication number CN221023839U. The technical solution disclosed in this patent document is as follows: it includes an integrally formed steering knuckle main shaft and a secondary shaft. A mounting plate is fixed on one side of the steering knuckle main shaft. The feature is that the outer circumference of the secondary shaft is threaded, and a sealing component is installed on the thread.

[0004] To address the issue of exposed threaded structures being easily damaged, existing technologies employ the design of sealing components. However, this approach still results in high maintenance costs. The steering knuckle body is a one-piece structure with numerous connection points. If a part is damaged beyond repair, a new entire unit must be purchased for replacement, further contributing to the high maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision front and rear steering knuckle for automotive brakes, solving the problem that the existing technology with a one-piece main body structure leads to high maintenance costs.

[0006] This utility model provides the following technical solution: a high-precision automotive brake front and rear steering knuckles, comprising:

[0007] Steering knuckle body and steering knuckle shaft;

[0008] A disassembled connection mechanism is provided at the connection between the steering knuckle body and the steering knuckle shaft. The disassembled connection mechanism is used to facilitate maintenance personnel to disassemble the steering knuckle body and the steering knuckle shaft.

[0009] A thread protection mechanism is provided at the end of the steering knuckle shaft body, and the thread protection mechanism is used to seal and protect the exposed threads at the end of the steering knuckle shaft body.

[0010] As a preferred embodiment of the above technical solution, a square groove is provided on the front side of the steering knuckle body, and a hidden groove is provided on the back side of the steering knuckle body, with the inner cavities of the square groove and the hidden groove communicating with each other.

[0011] The above technical solution, through the design of square grooves and hidden grooves, facilitates the concealed installation of the disassembled connection mechanism, avoiding interference with the installation space of other accessories.

[0012] As a preferred embodiment of the above technical solution, the disassembled connection mechanism includes a shaft connecting seat, which is fixedly connected to the back of the steering knuckle shaft. A plug-in block is fixedly connected to the back of the shaft connecting seat, and the plug-in block is movably inserted into the inner cavity of a square groove. A threaded hole is provided on the back of the plug-in block.

[0013] The above technical solution, through the design of the plug-in block, facilitates the movable connection between the steering knuckle body and the steering knuckle shaft by using the square groove.

[0014] As a preferred embodiment of the above technical solution, a bolt is threaded into the inner cavity of the threaded hole, and an alloy washer and a rubber washer are movably sleeved on the outer wall of the bolt.

[0015] The above technical solution, through the design of the alloy pad, can improve the stability of bolt installation by increasing the contact area.

[0016] As a preferred embodiment of the above technical solution, the alloy pad and the rubber pad are fixedly connected on adjacent sides, both the alloy pad and the rubber pad are located in the inner cavity of the hidden groove, and the front side of the rubber pad is movably connected to the front side of the inner wall of the hidden groove.

[0017] The above technical solution, through the design of the rubber pad, can avoid the problem of the mounting bolts causing squeezing damage to the steering knuckle body.

[0018] As a preferred embodiment of the above technical solution, the thread protection mechanism includes an internally threaded pipe fitting, which is threadedly connected to the outer wall of the steering knuckle shaft. A first sealing rubber ring is fixedly connected to one end of the internally threaded pipe fitting near the steering knuckle body, and a second sealing rubber ring is movably connected to the other end of the internally threaded pipe fitting away from the first sealing rubber ring. A protective cover is fixedly connected to the side of the second sealing rubber ring away from the internally threaded pipe fitting.

[0019] The above technical solution, through the design of internally threaded pipe fittings, can wrap and protect the end of the steering knuckle shaft.

[0020] As a preferred embodiment of the above technical solution, an external threaded ring is fixedly connected to the side of the protective cover near the internally threaded pipe fitting, and the outer wall of the external threaded ring is threadedly connected to the inner wall of the internally threaded pipe fitting.

[0021] The above technical solution, through the design of the external threaded ring, allows for a detachable connection between the internal threaded pipe fitting and the protective cover, facilitating the replacement of internal threaded pipe fittings of different lengths.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This utility model, through the overall design of the disassembled connection mechanism, allows the bolt to be removed from the inner cavity of the threaded hole, and the plug block can then be pulled out from the inside of the square slot, thus realizing the function of disassembling the steering knuckle body and the steering knuckle shaft. Conversely, it can connect the steering knuckle body and the steering knuckle shaft. During maintenance, if a part of the steering knuckle body or the steering knuckle shaft is damaged, the steering knuckle body or the steering knuckle shaft can be directly replaced without replacing the whole, which can reduce maintenance costs. Through the overall design of the thread protection mechanism, the exposed threads at the end of the steering knuckle shaft can be sealed and protected, ensuring the safety of the threads of the steering knuckle shaft and extending the service life of the threads of the steering knuckle shaft. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a schematic diagram of the assembled structure of the steering knuckle body and the steering knuckle shaft of this utility model;

[0026] Figure 3 This is a schematic diagram of the disassembled steering knuckle body and steering knuckle shaft of this utility model;

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0028] Figure 5 This is a schematic diagram of the structure of this utility model.

[0029] In the diagram: 1. Steering knuckle body; 11. Square groove; 12. Hidden groove; 2. Steering knuckle shaft; 3. Decomposed connection mechanism; 31. Shaft connecting seat; 32. Insert block; 33. Threaded hole; 34. Bolt; 35. Alloy gasket; 36. Rubber gasket; 4. Thread protection mechanism; 41. Internal threaded pipe fitting; 42. No. 1 sealing rubber ring; 43. Protective cover; 44. No. 2 sealing rubber ring; 45. External threaded ring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] like Figures 1-5As shown, this utility model provides a technical solution: a high-precision automotive brake front and rear steering knuckles, comprising:

[0032] Steering knuckle body 1 and steering knuckle shaft 2;

[0033] The disassembly-type connecting mechanism 3 is installed at the connection between the steering knuckle body 1 and the steering knuckle shaft 2. The disassembly-type connecting mechanism 3 is used to facilitate maintenance personnel to disassemble the steering knuckle body 1 and the steering knuckle shaft 2.

[0034] The thread protection mechanism 4 is located at the end of the steering knuckle shaft 2 and is used to seal and protect the exposed threads at the end of the steering knuckle shaft 2.

[0035] As one implementation method in this embodiment, such as Figure 3 As shown, a square groove 11 is provided on the front of the steering knuckle body 1, and a hidden groove 12 is provided on the back of the steering knuckle body 1. The inner cavities of the square groove 11 and the hidden groove 12 are interconnected. The design of the square groove 11 facilitates the insertion of the plug block 32 into its interior to movably connect the steering knuckle body 1 and the steering knuckle shaft 2. The design of the hidden groove 12 allows the end of the bolt 34, the alloy pad 35, and the rubber pad 36 to be hidden in its inner cavity, avoiding interference with other accessories connected to this structure.

[0036] As one implementation method in this embodiment, such as Figures 1-4As shown, the disassembled connection mechanism 3 includes a shaft connecting seat 31, which is fixedly connected to the back of the steering knuckle shaft 2. A plug-in block 32 is fixedly connected to the back of the shaft connecting seat 31. The plug-in block 32 is movably inserted into the inner cavity of the square groove 11. A threaded hole 33 is provided on the back of the plug-in block 32. A bolt 34 is threaded into the inner cavity of the threaded hole 33. An alloy washer 35 and a rubber washer 36 are movably sleeved on the outer wall of the bolt 34. The alloy washer 35 and the rubber washer 36 are fixedly connected on adjacent sides. Both the alloy washer 35 and the rubber washer 36 are located in the inner cavity of the hidden groove 12. The front of the rubber washer 36 is movably connected to the front of the inner wall of the hidden groove 12. When a part of the steering knuckle body 1 or the steering knuckle shaft 2 is damaged and needs to be replaced, the steering knuckle body 1 is first... The steering knuckle body 1 and steering knuckle shaft 2 are disassembled. The bolt 34 is removed from the inner cavity of the threaded hole 33. Then, the plug block 32 can be pulled out from the inside of the square slot 11, thus realizing the function of disassembling the steering knuckle body 1 and steering knuckle shaft 2. Then, the damaged steering knuckle body 1 or steering knuckle shaft 2 is replaced. Then, the plug block 32 is inserted into the square slot 11. Then, the alloy pad 35 and rubber pad 36 are put on the bolt 34. Then, the bolt 34 is screwed into the inside of the threaded hole 33. The design of the alloy pad 35 increases the contact area between the bolt 34 and the steering knuckle body 1, enhances the locking effect, and prevents loosening. The design of the rubber pad 36 allows for flexible contact between the bolt 34 and the steering knuckle body 1, avoiding the problem of squeezing damage to the steering knuckle body 1.

[0037] As one implementation method in this embodiment, such as Figure 1 , Figure 5As shown, the thread protection mechanism 4 includes an internally threaded pipe fitting 41, which is threadedly connected to the outer wall of the steering knuckle shaft 2. A first sealing rubber ring 42 is fixedly connected to one end of the internally threaded pipe fitting 41 near the steering knuckle body 1. A second sealing rubber ring 44 is movably connected to the other end of the internally threaded pipe fitting 41 away from the first sealing rubber ring 42. A protective cover 43 is fixedly connected to the side of the second sealing rubber ring 44 away from the internally threaded pipe fitting 41. An externally threaded ring 45 is fixedly connected to the side of the protective cover 43 near the internally threaded pipe fitting 41. The outer wall of the externally threaded ring 45 is threadedly connected to the inner wall of the internally threaded pipe fitting 41. After connecting the fittings at the threaded end of the steering knuckle shaft 2, excess material will be exposed. At this time, the internally threaded pipe fitting 41 is rotated and connected to the exposed thread of the steering knuckle shaft 2. At the threaded joint, the No. 1 sealing rubber ring 42 is fitted to the outer wall of the fitting to seal the connection between the fitting and the internally threaded pipe fitting 41. This ensures that the exposed threaded portion of the steering knuckle shaft 2 is enclosed within the inner cavity of the internally threaded pipe fitting 41, guaranteeing the safety of the threads at the steering knuckle shaft 2 and extending the service life of the threads at the steering knuckle shaft 2. Through the design of the external threaded ring 45, the protective cover 43 can be detachably connected to the internally threaded pipe fitting 41. Through the design of the No. 2 sealing rubber ring 44, the connection between the internally threaded pipe fitting 41 and the protective cover 43 can be sealed. This design allows for the selection of an appropriate length of internally threaded pipe fitting 41 based on the length of the exposed threads on the steering knuckle shaft 2, avoiding the problem of the protective cover 43 protruding too much and affecting the installation space of other fittings.

[0038] Working principle: When a part of the steering knuckle body 1 or the steering knuckle shaft 2 is damaged and needs to be replaced, first disassemble the steering knuckle body 1 and the steering knuckle shaft 2, remove the bolt 34 from the inner cavity of the threaded hole 33, and then pull out the plug block 32 from the inside of the square slot 11 to complete the disassembly of the steering knuckle body 1 and the steering knuckle shaft 2. Then replace the damaged steering knuckle body 1 or the steering knuckle shaft 2, and then insert the plug block 32 into the square slot 11. Then put the alloy washer 35 and the rubber washer 36 on the bolt 34, and then screw the bolt 34 into the inside of the threaded hole 33. After the accessories on the steering knuckle shaft 2 are installed, there will be excess part of the thread at the steering knuckle shaft 2. At this time, select an internal threaded pipe fitting 41 of appropriate length and rotate it to connect to the exposed thread at the steering knuckle shaft 2. Then, the protective cover 43 is rotated to the end of the internal threaded pipe fitting 41 through the external threaded ring 45 to protect the exposed thread at the steering knuckle shaft 2.

[0039] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A high-precision automobile brake front and rear steering knuckle, characterized in that, The utility model provides a kind of knuckle body and knuckle axle body; Decomposition type connecting mechanism (3) is arranged at the connecting place of knuckle body (1) and knuckle axle body (2), and the decomposition type connecting mechanism (3) is used to facilitate maintenance personnel to split the processing of knuckle body (1) and knuckle axle body (2); Thread protection mechanism (4) is arranged at the end of knuckle axle body (2), and the thread protection mechanism (4) is used to seal and protect the thread exposed at the end of knuckle axle body (2). The front of the knuckle body (1) is provided with a square groove (11), and the back of the knuckle body (1) is provided with a hidden groove (12), and the inner cavities of the square groove (11) and the hidden groove (12) are connected to each other.

2. The high-precision automobile brake front and rear knuckle according to claim 1, characterized in that: The decomposition type connecting mechanism (3) includes an axle body connecting seat (31) fixedly connected to the back of the knuckle axle body (2), a plug-in block (32) fixedly connected to the back of the axle body connecting seat (31), the plug-in block (32) movably inserted into the inner cavity of the square groove (11), and a threaded hole (33) formed in the back of the plug-in block (32).

3. The high-precision automobile brake front and rear knuckle according to claim 2, characterized in that: The inner cavity of the threaded hole (33) is threadedly connected with a bolt (34), and the outer wall of the bolt (34) movably sleeves an alloy pad (35) and a rubber pad (36).

4. The high-precision automobile brake front and rear knuckle according to claim 3, characterized in that: The alloy pad (35) and the rubber pad (36) are fixedly connected between the adjacent sides, and the alloy pad (35) and the rubber pad (36) are located in the inner cavity of the hidden groove (12), and the front of the rubber pad (36) is movably connected with the front of the inner wall of the hidden groove (12).

5. The high-precision automobile brake front and rear knuckle according to claim 4, characterized in that: The thread protection mechanism (4) includes an internally threaded pipe fitting (41) threadedly connected to the outer wall of the knuckle axle body (2), a first sealing rubber ring (42) fixedly connected to one end of the internally threaded pipe fitting (41) close to the knuckle body (1), a second sealing rubber ring (44) movably connected to the end of the internally threaded pipe fitting (41) away from the first sealing rubber ring (42), and a protective cover (43) fixedly connected to the side of the second sealing rubber ring (44) away from the internally threaded pipe fitting (41).

6. The high-precision automobile brake front and rear knuckle according to claim 1, characterized in that: The protective cover (43) is fixedly connected with an externally threaded ring (45) on the side close to the internally threaded pipe fitting (41), and the outer wall of the externally threaded ring (45) is threadedly connected with the inner wall of the internally threaded pipe fitting (41).

7. The high-precision automobile brake front and rear knuckle according to claim 6, characterized in that: ​

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