Automobile steering knuckle with cooling structure

Abstract

The utility model relates to the technical field of automobile steering knuckles, in particular to an automobile steering knuckle with a cooling structure, which comprises a steering knuckle body and the cooling structure, the steering knuckle body is provided with a disc body part, and the disc body part is provided with a hub disc mounting shaft, two brake arms, a steering arm, a damping arm, a main pin arm, an air hole and a concave cavity. The cooling structure comprises a first cooling channel, a second cooling channel, a circulating pump, a liquid cooling pipe and an air hole, the hub disc mounting shaft is provided with the first cooling channel, the brake arm is provided with the second cooling channel, the circulating pump is located on the side, close to the damping arm, of the disc body part and arranged in the concave cavity, and one end of the liquid cooling pipe is communicated with an outlet of the circulating pump. One end of the liquid cooling pipe is provided with a first cooling channel, the other end of the liquid cooling pipe is wound around the air hole after penetrating through the second cooling channel and is communicated with an inlet of the circulating pump after penetrating through the first cooling channel, and cooling liquid is arranged in the liquid cooling pipe. The advantage of a cooling structure is achieved.

Description

Technical Field

[0001] This application relates to the field of automotive steering knuckle technology, and more specifically to an automotive steering knuckle with a cooling structure. Background Technology

[0002] The steering knuckle is one of the important components in the steering axle of an automobile. Its function is to transmit and bear the load of the front of the vehicle, support and drive the front wheels to rotate around the kingpin so that the vehicle can be steered.

[0003] Patent document (CN222452343U) discloses an automotive steering knuckle, including a steering knuckle body. The steering knuckle body has a hub mounting shaft, two brake arms, a shock absorber arm, a steering arm, and a kingpin arm. The hub mounting shaft is located at one end of the steering knuckle body and is arranged perpendicular to the end face of the steering knuckle body. The brake arms, the shock absorber arms, the steering arms, and the kingpin arm are all arranged in the circumferential direction of the steering knuckle body. An automotive wheel hub is mounted on the hub mounting shaft, and the brake arms are close to the brake disc. During vehicle operation, the brake disc generates significant heat during braking, reaching peak temperatures above 600°C. Aluminum alloy automotive steering knuckles are prone to plastic deformation when the temperature exceeds 500°C, causing changes in their size and shape. Localized high temperatures can lead to slight changes in the steering knuckle's geometry or compromise the fit accuracy between the steering knuckle and external steering tie rods, thereby affecting steering response accuracy and stability.

[0004] Therefore, there is a need for an automotive steering knuckle with a cooling structure that reduces the negative impact of high temperatures on the steering knuckle. Summary of the Invention

[0005] The main objective of this application is to provide an automotive steering knuckle with a cooling structure. The steering knuckle includes a steering knuckle body, which has a disc portion. One side of the disc portion has a wheel hub mounting shaft, one side of the disc portion has two brake arms, and the other side of the disc portion has a steering arm. The other side of the disc portion has a shock absorber arm and a kingpin arm. The side of the disc portion opposite to the wheel hub mounting shaft has a cavity. The cooling structure includes a first cooling channel, a second cooling channel, a circulating pump, a liquid cooling pipe, and air vents. The wheel hub mounting shaft has a first cooling channel, and one side of each of the two brake arms has a second cooling channel. The part also has a through-hole. The steering arm is located on the side of the disc body near the shock absorber arm. The air hole is located on the side of the steering arm near the kingpin arm. The circulation pump is located on the side of the disc body near the shock absorber arm. The circulation pump is located in the cavity and connected to the disc body. One end of the liquid cooling pipe is connected to the outlet of the circulation pump. The other end of the liquid cooling pipe passes through the second cooling channel and is wound around the air hole. After passing through the first cooling channel, it is connected to the inlet of the circulation pump. The liquid cooling pipe contains coolant. The brake arm and wheel hub disc mounting shaft are cooled through the liquid cooling pipe. The air hole dissipates heat and cools the coolant at the same time.

[0006] Another objective of this application is to provide an automotive steering knuckle with a cooling structure, wherein the first cooling channel includes a central section, a side-through section, a first spiral section, and a connecting section. The central section extends a predetermined distance from the region of the disc body portion opposite to the central axis of the wheel disc mounting shaft towards the end face of the wheel disc mounting shaft. The first spiral section is located on the side wall of the wheel disc mounting shaft near the disc body portion. The side-through section extends from the side wall of the wheel disc mounting shaft near the disc body portion towards the central axis of the wheel disc mounting shaft, and both ends of the side-through section are respectively connected to the central section and the first spiral section. Both ends of the connecting section are respectively connected to the air vent and the end of the first spiral section opposite to the side-through section.

[0007] To achieve at least one of the above-mentioned objectives, this application provides an automotive steering knuckle with a cooling structure, wherein the automotive steering knuckle with a cooling structure comprises:

[0008] The steering knuckle body has a disc body portion, one side of which has a hub disc mounting shaft, one side of which has two brake arms, the other side of which has a steering arm, the other side of which has a shock absorber arm and a kingpin arm, and the side of which has a cavity away from the hub disc mounting shaft.

[0009] The cooling structure includes a first cooling channel, a second cooling channel, a circulating pump, a liquid cooling pipe, and an air vent. The first cooling channel is located on the wheel hub mounting shaft, and the second cooling channel is located on one side of each of the two brake arms. The disc body also has a through air vent. The steering arm is located on the side of the disc body near the shock absorber arm, and the air vent is located on the side of the steering arm near the kingpin arm. The circulating pump is located on the side of the disc body near the shock absorber arm and is disposed within the cavity and connected to the disc body. One end of the liquid cooling pipe is connected to the outlet of the circulating pump, and the other end of the liquid cooling pipe passes through the second cooling channel and wraps around the air vent. After passing through the first cooling channel, it is connected to the inlet of the circulating pump. The liquid cooling pipe contains coolant.

[0010] In one or more embodiments of this application, the first cooling channel includes a central section, a side-through section, a first spiral section, and a connecting section. The central section extends a predetermined distance from the region of the disc portion opposite to the central axis of the wheel disc mounting shaft towards the end face of the wheel disc mounting shaft. The first spiral section is located on the side wall of the wheel disc mounting shaft near the disc portion. The side-through section extends from the side wall of the wheel disc mounting shaft near the disc portion towards the central axis of the wheel disc mounting shaft, and both ends of the side-through section are connected to the central section and the first spiral section, respectively. Both ends of the connecting section are connected to the air vent and the end of the first spiral section away from the side-through section, respectively.

[0011] In one or more embodiments of this application, each of the second cooling channels is a U-shaped channel, and both openings of the U-shaped channel are connected to the concave cavity.

[0012] In one or more embodiments of this application, the cooling structure further includes a third cooling channel, which is a spiral groove, and the third cooling channel is disposed on the side wall of the air hole.

[0013] In one or more embodiments of this application, the air hole is a tapered hole, and the end of the tapered hole with a larger diameter is away from the hub disk mounting shaft.

[0014] In one or more embodiments of this application, the liquid cooling pipe has a three-way extension, the three-way extension includes a stepped hole, and the automotive steering knuckle with cooling structure further includes a rubber plug, the rubber plug being disposed in the stepped hole and sealing the stepped hole.

[0015] In one or more embodiments of this application, the stepped hole has an internal thread at one end near the opening, and the automotive steering knuckle with cooling structure further includes a threaded pressing member. The threaded pressing member is connected to the internal thread at the opening of the stepped hole by a threaded connection, and the threaded pressing member abuts against the rubber plug.

[0016] In one or more embodiments of this application, both the shock absorber arm and the main pin arm have a partition groove, a screw hole and a mounting hole, the central axis of the screw hole is arranged perpendicular to the central axis of the mounting hole, and the partition groove cuts off the screw hole.

[0017] In this embodiment, the automotive steering knuckle with a cooling structure includes a steering knuckle body and a cooling structure. The steering knuckle body has a disc portion, which includes a hub disc mounting shaft, two brake arms, a steering arm, a shock absorber arm, a kingpin arm, and a cavity. The cooling structure includes a first cooling channel, a second cooling channel, a circulating pump, a liquid cooling pipe, and an air vent. The hub disc mounting shaft has a first cooling channel, and the two brake arms have second cooling channels. The disc portion also has a through air vent. The steering arm is located on one side of the disc portion, and the air vent is located on the side of the steering arm closer to the kingpin arm. The circulating pump is located on the side of the disc body near the shock absorber arm, and is installed in the cavity and connected to the disc body. One end of the liquid cooling pipe is connected to the outlet of the circulating pump, and the other end of the liquid cooling pipe passes through the second cooling channel and is routed around the air vent. After passing through the first cooling channel, it is connected to the inlet of the circulating pump. The liquid cooling pipe contains coolant, which cools the brake arm and wheel hub disc mounting shaft. The air vent dissipates heat while cooling the coolant. It has the advantages of having a cooling structure and reducing the negative impact of high temperature on the automotive steering knuckle. Attached Figure Description

[0018] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 The figure shows a schematic diagram of the structure of an automobile steering knuckle with a cooling structure at one angle according to this application;

[0020] Figure 2 The figure shows a schematic diagram of the structure of an automobile steering knuckle with a cooling structure at another angle according to this application;

[0021] Figure 3 The illustration shows a cross-sectional view of the first cooling channel from one perspective;

[0022] Figure 4 The diagram shows Figure 1 A magnified view of a portion of point C. Detailed Implementation

[0023] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0027] Schematic illustration of a car steering knuckle with cooling structure, reference Figures 1 to 4 According to a preferred embodiment of the present invention, a car steering knuckle with a cooling structure includes a steering knuckle body 10. The steering knuckle body 10 has a disc portion 101. One side of the disc portion 101 has a hub disc mounting shaft 102. One side of the disc portion 101 has two brake arms 103. The other side of the disc portion 101 has a steering arm 104. The other side of the disc portion 101 has a shock absorber arm 105 and a kingpin arm 106. The side of the disc portion 101 opposite to the hub disc mounting shaft 102 has a cavity 107.

[0028] The wheel hub mounting shaft 102 is used to mount the external wheel hub, and the brake arm 103 is connected to the external brake structure. When the car brakes, the external brake disc will generate a lot of heat, or the part of the steering knuckle body 10 that is close to the external brake disc, namely the wheel hub mounting shaft 102 and the brake arm 103, may undergo slight changes in size under high heat, affecting the steering response accuracy and stability of the car steering knuckle.

[0029] Therefore, the automotive steering knuckle with cooling structure further includes a cooling structure 20, which includes a first cooling channel 201, a second cooling channel 202, a circulating pump 203, a liquid cooling pipe 204, and an air vent 205. The wheel hub mounting shaft 102 has a first cooling channel 201, and each of the two brake arms 103 has a second cooling channel 202 on one side. The disc body 101 also has a through air vent 205. The steering arm 104 is located on the side of the disc body 101 near the shock absorber arm 105, and the air vent 205 is located on the steering arm. 104 is located on the side of the main pin arm 106. The circulating pump 203 is located on the side of the disc body 101 near the shock absorber arm 105. The circulating pump 203 is located in the cavity 107 and connected to the disc body 101. One end of the liquid cooling pipe 204 is connected to the outlet of the circulating pump 203. The other end of the liquid cooling pipe 204 passes through the second cooling channel 202 and is wound around the air hole 205. After passing through the first cooling channel 201, it is connected to the inlet of the circulating pump 203. The liquid cooling pipe 204 contains coolant.

[0030] It should be noted that the liquid cooling pipe 204 on the first cooling channel 201 is used to cool the wheel hub mounting shaft 102, and the liquid cooling pipe 204 on the second cooling channel 202 is used to cool the two brake arms 103. By setting the air vent 205, external cold air can meet the hot air on the side of the steering knuckle body 10 close to the external brake disc, thereby achieving cooling. In addition, by winding the liquid cooling pipe 204 around the air vent 205, the coolant in the liquid cooling pipe 204 is cooled as the external air flows in the air vent 205. The circulation pump 203 circulates the coolant in the liquid cooling pipe 204. Compared with the prior art, this application has the advantages of having a cooling structure and reducing the negative impact of high temperature on the automotive steering knuckle.

[0031] Specifically, the first cooling channel 201 includes a central section 2011, a side-through section 2012, a first spiral section 2013, and a connecting section 2014. The central section 2011 extends a predetermined distance from the area of ​​the disc body portion 101 opposite to the central axis of the wheel hub mounting shaft 102 toward the end face of the wheel hub mounting shaft 102. The first spiral section 2013 is located on the side wall of the wheel hub mounting shaft 102 near the disc body portion 101. The side-through section 2012 extends from the side wall of the wheel hub mounting shaft 102 near the disc body portion 101 toward the central axis of the wheel hub mounting shaft 102, and both ends of the side-through section 2012 are connected to the central section 2011 and the first spiral section 2013, respectively. Both ends of the connecting section 2014 are connected to the air vent 205 and the end of the first spiral section 2013 away from the side-through section 2012, respectively.

[0032] In addition, each of the second cooling channels 202 is a U-shaped channel, and both openings of the U-shaped channel are connected to the cavity 107.

[0033] In addition, the cooling structure 20 also includes a third cooling channel 206, which is a spiral groove, and the third cooling channel 206 is located on the side wall of the air hole 205.

[0034] It should be noted that the liquid cooling pipe 204 includes a first curved pipe section, a first U-shaped pipe section, a second curved pipe section, a second U-shaped pipe section, a third curved pipe section, a first spiral pipe section, a fourth curved pipe section, a second spiral pipe section, an L-shaped pipe section, and a straight pipe section connected in sequence. One end of the first curved pipe section is connected to the outlet of the circulating pump 203, and the other end is connected to the first U-shaped pipe section. One end of the straight pipe section is connected to the L-shaped pipe section, and the other end is connected to the inlet of the circulating pump 203. The first U-shaped pipe section and the second U-shaped pipe section are respectively located within the two second cooling channels 202. The first curved pipe section, the second curved pipe section, and the third curved pipe section are located within the concave cavity 107. The first spiral pipe section is wound around the side wall of the air vent 205 in a spiral shape. A spiral tube segment is located on the third cooling channel 206, and a fourth curved tube segment is located on the side of the disc body 101 near the hub disc mounting shaft 102, that is, the fourth curved tube segment is located on the connecting section 2014 of the first cooling channel 201. The second spiral tube segment is wound around the first spiral section 2013 of the first cooling channel 201. One end of the L-shaped tube segment passes through the side passage section 2012 of the first cooling channel 201, and the other end of the L-shaped tube segment passes through the center section 2011 of the first cooling channel 201. The straight tube segment is located in the cavity 107.

[0035] Furthermore, the air vent 205 is a tapered hole, with the larger diameter end of the tapered hole facing away from the hub mounting shaft 102. It should be noted that when the hub rotates, it generates centrifugal force and forms a negative pressure zone at the end of the tapered hole near the hub mounting shaft 102. By positioning the larger diameter end of the tapered hole away from the hub mounting shaft 102, external cold air can pass through the air vent 205 and exchange heat with the hot air on one side of the hub. Additionally, the tapered hole design increases the overall length of the first spiral tube section, which helps improve the cooling effect on the coolant.

[0036] Furthermore, in order to replenish and replace the coolant in the liquid cooling pipe 204, the liquid cooling pipe 204 has a three-way extension 2041, the three-way extension 2041 includes a stepped hole 2042, and the automotive steering knuckle with cooling structure 20 also includes a rubber plug 2043, the rubber plug 2043 is disposed in the stepped hole 2042 and seals the stepped hole 2042.

[0037] It should be noted that by inserting an external suction device through the rubber stopper 2043, coolant can be injected into or extracted from the liquid cooling pipe 204.

[0038] Furthermore, to secure the rubber plug 2043, the stepped hole 2042 has an internal thread at one end near the opening. The automotive steering knuckle with cooling structure 20 also includes a threaded pressing member 2044. The threaded pressing member 2044 is threadedly connected to the internal thread at the opening of the stepped hole 2042, and the threaded pressing member 2044 abuts against the rubber plug 2043. When pumping coolant, the threaded pressing member 2044 is first unscrewed. Under normal conditions, the threaded pressing member 2044 presses the rubber plug 2043, thus securing the rubber plug 2043 in place and ensuring it fits tightly against the wall of the stepped hole 2042.

[0039] Furthermore, in this application, both the shock absorber arm 105 and the main pin arm 106 have a partition groove 1051, a screw hole 1052, and a mounting hole 1053. The central axis of the screw hole 1052 is arranged perpendicular to the central axis of the mounting hole 1053, and the partition groove 1051 cuts off the screw hole 1052. By setting the partition groove 1051, the two side walls of the partition groove 1051 can be bent and deformed to a certain extent. External bolts can pass through the screw hole 1052. By tightening the external bolts, the two side walls of the partition groove 1051 can move towards each other to tighten the external mounting components.

[0040] In summary, the automotive steering knuckle with cooling structure described in the embodiments of this application is explained, which provides advantages such as having a cooling structure and reducing the negative impact of high temperature on the automotive steering knuckle.

[0041] It is worth mentioning that, in this embodiment, the automotive steering knuckle with cooling structure has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the automotive steering knuckle with cooling structure provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0042] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A car steering knuckle with a cooling structure, characterized in that: The automotive steering knuckle with cooling structure includes The steering knuckle body has a disc body portion, one side of which has a hub disc mounting shaft, one side of which has two brake arms, the other side of which has a steering arm, the other side of which has a shock absorber arm and a kingpin arm, and the side of which has a cavity away from the hub disc mounting shaft. The cooling structure includes a first cooling channel, a second cooling channel, a circulating pump, a liquid cooling pipe, and an air vent. The first cooling channel is located on the wheel hub mounting shaft, and the second cooling channel is located on one side of each of the two brake arms. The disc body also has a through air vent. The steering arm is located on the side of the disc body near the shock absorber arm, and the air vent is located on the side of the steering arm near the kingpin arm. The circulating pump is located on the side of the disc body near the shock absorber arm and is disposed within the cavity and connected to the disc body. One end of the liquid cooling pipe is connected to the outlet of the circulating pump, and the other end of the liquid cooling pipe passes through the second cooling channel and wraps around the air vent. After passing through the first cooling channel, it is connected to the inlet of the circulating pump. The liquid cooling pipe contains coolant.

2. The automotive steering knuckle with cooling structure according to claim 1, characterized in that: The first cooling channel includes a central section, a side-through section, a first spiral section, and a connecting section. The central section extends a predetermined distance from the area of ​​the disc body portion opposite to the central axis of the wheel hub mounting shaft towards the end face of the wheel hub mounting shaft. The first spiral section is located on the side wall of the wheel hub mounting shaft near the disc body portion. The side-through section extends from the side wall of the wheel hub mounting shaft near the disc body portion towards the central axis of the wheel hub mounting shaft, and both ends of the side-through section are connected to the central section and the first spiral section, respectively. Both ends of the connecting section are connected to the air vent and the end of the first spiral section opposite to the side-through section, respectively.

3. The automotive steering knuckle with cooling structure according to claim 2, characterized in that: Each of the second cooling channels is a U-shaped channel, and both openings of the U-shaped channel are connected to the concave cavity.

4. The automotive steering knuckle with cooling structure according to claim 3, characterized in that: The cooling structure also includes a third cooling channel, which is a spiral groove, and the third cooling channel is located on the side wall of the air vent.

5. The automotive steering knuckle with cooling structure according to claim 4, characterized in that: The air vent is a tapered vent, and the end of the tapered vent with the larger diameter is away from the hub mounting shaft.

6. The automotive steering knuckle with cooling structure according to claim 5, characterized in that: The liquid cooling pipe has a three-way extension, the three-way extension includes a stepped hole, and the automotive steering knuckle with cooling structure also includes a rubber plug, the rubber plug being disposed in the stepped hole and sealing the stepped hole.

7. The automotive steering knuckle with cooling structure according to claim 6, characterized in that: The stepped hole has an internal thread at one end near the opening. The automotive steering knuckle with cooling structure also includes a threaded pressing member. The threaded pressing member is connected to the internal thread at the opening of the stepped hole by a threaded connection, and the threaded pressing member abuts against the rubber plug.

8. The automotive steering knuckle with cooling structure according to claim 7, characterized in that: Both the shock absorber arm and the main pin arm have a partition groove, a screw hole and a mounting hole. The central axis of the screw hole is arranged perpendicular to the central axis of the mounting hole, and the partition groove cuts off the screw hole.

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