Self-lubricating automobile steering knuckle

Abstract

The utility model belongs to the technical field of automobile accessories, and particularly relates to a self-lubricating automobile steering knuckle. Comprising a steering knuckle body, and a mounting hole is formed in the steering knuckle body; the outer lubricating chamber is inwards formed in the hole wall of the mounting hole; the outer sealing cover for blocking the outer lubricating chamber is coaxially arranged on the mounting hole; the inner lubricating sleeve is arranged on the side, away from the mounting hole, of the outer sealing cover, and a lubricating hole connected with the outer lubricating chamber is formed in the inner lubricating sleeve; the inner lubricating chamber and the outer lubricating chamber are communicated to form a complete lubricating chamber, so that the overall containing capacity of the lubricating chamber is guaranteed, and the overall practicability of the self-lubricating automobile steering knuckle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, in particular to a self-lubricating automobile steering knuckle. Background Art

[0002] The steering knuckle of an automobile is a universal joint that connects the steering rod under the steering wheel to the steering gear in two sections. The joint between the two sections is a universal joint. The steering knuckle is the hinge for steering the wheel and is generally fork-shaped. The upper and lower forks have two coaxial holes for installing the central pin, and the steering knuckle journal is used to install the wheel. After using the existing steering knuckle for a period of time, its steering part needs to be lubricated. Generally, the vehicle is jacked up or hoisted, and lubricating oil is delivered from the oiling nozzle to the rotating part of the fixed ear and sprayed from the inside for lubrication, or the lubricating oil is sprayed manually. However, this operation requires jacking up the vehicle, which is time-consuming, labor-intensive, and troublesome. Therefore, a steering knuckle is needed to solve this problem. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned technical problems and provide an automobile steering knuckle which has a simple structure, is wear-resistant and has an ideal self-lubricating effect.

[0004] In view of this, the present invention provides a self-lubricating automobile steering knuckle, comprising:

[0005] A steering knuckle body, wherein a mounting hole is formed on the steering knuckle body;

[0006] An external lubrication chamber is formed inwardly on the hole wall of the mounting hole;

[0007] An outer sealing cover is coaxially arranged on the mounting hole to seal the outer lubrication chamber;

[0008] An inner lubricating sleeve is provided on a side of the outer cover away from the mounting hole, and a lubricating hole connected to the outer lubricating chamber is formed on the inner lubricating sleeve.

[0009] In the above technical solution, further comprising:

[0010] An inner lubrication chamber is formed on a side of the outer cover close to the mounting hole, and the outer lubrication chamber is communicated with the inner lubrication chamber;

[0011] The lubrication hole is communicated with the side wall of the inner lubrication chamber.

[0012] In the above technical solution, further, the outer cover includes:

[0013] The side end covers are respectively installed into the mounting holes from both sides of the mounting hole, and a mounting plate is formed on the side of the side end cover close to the end face of the mounting hole to abut against the end face of the mounting hole.

[0014] In the above technical solution, further, the side end cover also includes:

[0015] Oil outlet grooves, a plurality of oil outlet grooves are evenly distributed on one side of the inner lubrication chamber close to the inner lubrication sleeve, and each oil outlet groove is connected to a plurality of lubrication holes.

[0016] In the above technical solution, further, the side end cover also includes:

[0017] Dust-proof block: each oil outlet groove is provided with a dust-proof block.

[0018] In the above technical solution, further, the side end cover also includes:

[0019] End limit edge: a protruding end limit edge is provided on the end surface of the side end cover close to the mounting hole;

[0020] Wherein, end limiting grooves are formed on both sides of the outer wall of the inner lubricating sleeve to abut against the end limiting edge.

[0021] In the above technical solution, further, the inner lubricating sleeve includes:

[0022] A metal outer lining layer is formed on a side abutting against the outer cover, and an end limit groove is formed on the metal outer lining layer;

[0023] An inner lubricating protective layer, which is arranged on the inner side of the metal outer lining;

[0024] The lubrication holes penetrate the metal outer lining and the inner lubrication protective layer.

[0025] In the above technical solution, further comprising:

[0026] An oil filling hole, which is provided on the steering knuckle body and communicates with the external lubrication chamber;

[0027] A plug is provided on the oil filling hole.

[0028] The beneficial effects of the utility model are:

[0029] 1. The setting of the external lubrication chamber enables the steering knuckle body to have a certain oil storage capacity, and then lubricates the internal lubrication sleeve through the lubrication hole;

[0030] 2. The inner lubrication chamber and the outer lubrication chamber are connected to form a complete lubrication chamber, thereby ensuring the overall capacity of the lubrication chamber and further improving the overall practicality of the self-lubricating automobile steering knuckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the utility model;

[0032] Figure 2 It is a cross-sectional schematic diagram of the present utility model;

[0033] Figure 3 yes Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0034] The markings in the figure are: 1-steering knuckle body, 2-external lubrication chamber, 3-external cover, 3a-side end cover, 3b-mounting plate, 3c-oil outlet groove, 3d-dust block, 3e-end limit edge, 4-internal lubrication sleeve, 4a-metal outer lining, 4b-internal lubrication protective layer, 5-lubrication hole, 6-internal lubrication chamber, 7-plug. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0036] Example 1:

[0037] This embodiment provides a self-lubricating automobile steering knuckle, comprising:

[0038] A steering knuckle body 1 is formed with a mounting hole;

[0039] An external lubrication chamber 2 is formed inwardly of the hole wall of the mounting hole;

[0040] An outer cover 3 is coaxially arranged on the mounting hole to seal the outer lubrication chamber 2;

[0041] An inner lubricating sleeve 4 is provided on a side of the outer cover 3 away from the mounting hole, and a lubricating hole 5 connected to the outer lubricating chamber 2 is formed on the inner lubricating sleeve 4 .

[0042] In this embodiment, the provision of the external lubrication chamber 2 enables the steering knuckle body 1 to have a certain oil storage capacity, which is then sealed by the external sealing cover 3. The external lubrication chamber 2 is sealed by the external sealing cover 3 made of the same material as the steering knuckle body 1, thereby ensuring the sealing effect of the external lubrication chamber 2; and the provision of the internal lubrication sleeve 4 is the same as that for accommodating the rotating shaft, and is connected to the external lubrication chamber 2 through the lubrication hole 5 provided on the internal lubrication sleeve 4, so that the external lubrication chamber 2 slowly compensates the lubricant to the inner side of the internal lubrication sleeve 4; thereby reducing the time for the lubricant in the external lubrication chamber 2 to be consumed and then compensated with the lubricant; thereby reducing the time for adding lubricant, thereby reducing the maintenance cost.

[0043] Example 2:

[0044] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Also includes:

[0046] The inner lubrication chamber 6 is formed on the side of the outer cover 3 close to the mounting hole, and the outer lubrication chamber 2 is communicated with the inner lubrication chamber 6;

[0047] The lubrication hole 5 is communicated with the side wall of the inner lubrication chamber 6 .

[0048] In this embodiment, the inner lubrication chamber 6 and the outer lubrication chamber 2 are connected to form a complete lubrication chamber, thereby ensuring the overall capacity of the lubrication chamber and further improving the overall practicality of the self-lubricating automobile steering knuckle.

[0049] Example 3:

[0050] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] The outer cover 3 comprises:

[0052] The side end covers 3a are respectively installed into the mounting holes from both sides of the mounting hole, and a mounting plate 3b is formed on the side of the side end cover close to the end face of the mounting hole to abut against the end face of the mounting hole.

[0053] In this embodiment, the two side end covers 3a are combined to form the outer cover 3, facilitating its processing and installation. The two side end covers 3a are divided into two within the inner lubrication chamber 6. To ensure the structural stability of the side end covers 3a, several support plates are formed on the side walls of the outer lubrication chamber 2, extending toward and abutting the side walls of the inner lubrication chamber 6 of the side end covers 3a. These support plates are also formed with oil grooves, ensuring both the stability of the side end covers 3a and the smooth flow of lubricant. The side end covers 3a are secured to the end faces of the mounting holes via mounting plates 3b with bolts. To ensure sealing, sealing rings may be provided at the locations where the two side end covers 3a abut and where the mounting plates 3b abut the end faces of the mounting holes.

[0054] Example 4:

[0055] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] The side end cover 3a also includes:

[0057] The oil outlet grooves 3 c are evenly distributed on the side of the inner lubrication chamber 6 close to the inner lubrication sleeve 4 , and each oil outlet groove 3 c is connected to a plurality of lubrication holes 5 .

[0058] In this embodiment, the provision of the oil outlet groove 3c ensures that the lubricating liquid in the lubrication chamber flows smoothly into the lubrication holes 5. Furthermore, one lubrication groove is connected to multiple lubrication holes 5. Even if the inner lubrication sleeve 4 rotates radially, some of the lubrication holes 5 can still be connected to the lubrication groove. Furthermore, the cross-section of the groove is arc-shaped.

[0059] Example 5:

[0060] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] The side end cover 3a also includes:

[0062] Dust-proof block 3d: each oil outlet groove 3c is provided with a dust-proof block 3d.

[0063] In this embodiment, the dust block 3d is a sponge structure with a hole structure. The setting of the dust block 3d can not only prevent dust from entering the lubrication chamber, but also reduce the amount and flow rate of lubricating fluid flowing out, thereby further ensuring the long-term effectiveness of lubrication.

[0064] Example 6:

[0065] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] The side end cover 3a also includes:

[0067] End limit edge 3e, a protruding end limit edge 3e is provided on the end surface of the side end cover 3a close to the mounting hole;

[0068] End limiting grooves are formed on both sides of the outer wall of the inner lubricating sleeve 4 to abut against the end limiting edge 3e.

[0069] In this embodiment, the end limit edge 3e is used to clamp the inner lubricating sleeve 4 between the two side end covers 3a, thereby ensuring that the inner lubricating sleeve 4 does not slide or move axially, thereby ensuring the stable installation of the inner lubricating sleeve 4.

[0070] Example 7:

[0071] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0072] The inner lubricating sleeve 4 includes:

[0073] A metal outer lining layer, the metal outer lining layer is formed on the side abutting against the outer cover 3, and the end limit groove is formed on the metal outer lining layer;

[0074] An inner lubricating protective layer 4b is provided on the inner side of the metal outer lining;

[0075] The lubrication hole 5 penetrates the metal outer lining layer and the inner lubricating protective layer 4b.

[0076] In this embodiment, the metal outer lining is made of a high-strength and wear-resistant metal such as a high-chromium alloy; and the inner lubricating protective layer 4b is a stack of a cemented carbide layer, an alumina ceramic layer, a silicon nitride ceramic layer and a cubic boron nitride layer, thereby ensuring its good self-lubricating effect and reducing the wear of the inner lubricating sleeve 4 when it contacts the rotating shaft.

[0077] Example 8:

[0078] This embodiment provides a self-lubricating automobile steering knuckle, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0079] Also includes:

[0080] An oil filling hole, which is provided on the steering knuckle body 1 and communicates with the external lubrication chamber 2;

[0081] Plug 7: A plug 7 is provided on the oil filling hole.

[0082] In this embodiment, the provision of the oil filling hole and the plug 7 can facilitate the replenishment of the lubricating fluid.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A self-lubricating automobile steering knuckle, characterized in that: include: A steering knuckle body (1), wherein a mounting hole is formed on the steering knuckle body (1); An external lubrication chamber (2) is formed inwardly on the hole wall of the mounting hole; An outer sealing cover (3) is coaxially arranged on the mounting hole to seal the outer lubrication chamber (2); An inner lubricating sleeve (4) is provided on a side of the outer cover (3) away from the mounting hole, and a lubricating hole (5) connected to the outer lubricating chamber (2) is formed on the inner lubricating sleeve (4).

2. The self-lubricating automobile steering knuckle according to claim 1, characterized in that: Also includes: An inner lubrication chamber (6) is formed on a side of the outer cover (3) close to the mounting hole, and the outer lubrication chamber (2) is communicated with the inner lubrication chamber (6); The lubrication hole (5) is communicated with the side wall of the inner lubrication chamber (6).

3. The self-lubricating automobile steering knuckle according to claim 2, characterized in that: The outer cover (3) comprises: The side end covers (3a) are respectively installed in the mounting holes from both sides of the mounting holes, and a mounting plate (3b) is formed on one side of the side end cover close to the end face of the mounting hole and abuts against the end face of the mounting hole.

4. The self-lubricating automobile steering knuckle according to claim 3, characterized in that: The side end cover (3a) further comprises: Oil outlet grooves (3c), wherein a plurality of the oil outlet grooves (3c) are evenly distributed on one side of the inner lubrication chamber (6) close to the inner lubrication sleeve (4), and each oil outlet groove (3c) is connected to a plurality of lubrication holes (5).

5. The self-lubricating automobile steering knuckle according to claim 4, characterized in that: The side end cover (3a) further comprises: A dustproof block (3d) is provided on each of the oil outlet grooves (3c).

6. The self-lubricating automobile steering knuckle according to claim 5, characterized in that: The side end cover (3a) further comprises: An end limit edge (3e), a protruding end limit edge (3e) is provided on the end surface of the side end cover (3a) close to the mounting hole; End limiting grooves are formed on both sides of the outer wall of the inner lubricating sleeve (4) to abut against the end limiting edge (3e).

7. The self-lubricating automobile steering knuckle according to claim 6, characterized in that: The inner lubricating sleeve (4) comprises: A metal outer lining layer (4a), wherein the metal outer lining layer (4a) is formed on a side that abuts against the outer cover (3), and an end limit groove is formed on the metal outer lining layer (4a); An inner lubricating protective layer (4b), wherein the inner lubricating protective layer (4b) is arranged on the inner side of the metal outer lining layer (4a); The lubricating hole (5) penetrates the metal outer lining (4a) and the inner lubricating protective layer (4b).

8. The self-lubricating automobile steering knuckle according to claim 1, characterized in that: Also includes: An oil filling hole, the oil filling hole being provided on the steering knuckle body (1) and being in communication with the external lubrication chamber (2); A plug (7) is provided on the oil filling hole.

Images