Damping type automobile steering knuckle

Abstract

The utility model discloses a damping type automobile steering knuckle which comprises a flange plate, steering knuckle forks are installed on the left side and the right side of the lower end of the flange plate, buffer grooves are formed in the side portions of the steering knuckle forks, and damping pieces are installed in the buffer grooves. A connecting shaft is mounted at the upper end of the middle of the flange plate through a bearing, the outer side of the connecting shaft is slidably sleeved with an annular shell, the annular shell is mounted above the flange plate, an oil injection mechanism is arranged on the lower portion in the annular shell, and the oil injection mechanism supplements lubricating oil to the bearing of the connecting shaft. According to the damping type automobile steering knuckle, the damping and buffering effects are achieved through the damping piece, the protection capacity is improved, meanwhile, the lubricating operation on the bearing is achieved through the oil injection mechanism, evaporation and liquid leakage can be avoided, and normal use of lubricating oil is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering knuckles, in particular to a shock-absorbing automobile steering knuckle. Background Art

[0002] With the continuous development of society, cars have become one of the main means of transportation for people's daily travel. The steering knuckle, also known as the horn, is one of the components that ensures the stable driving of the car and sensitively transmits the driving direction, and it bears variable impact loads.

[0003] One end of the automobile steering knuckle is connected to the axle, and the other end of the shaft connection drives the wheel to rotate. When steering, there is mechanical vibration at the connection position with the axle, which affects the stability of the steering connection of the vehicle body. Therefore, a shock-absorbing automobile steering knuckle is needed. For example, in the patent application entitled "A shock-absorbing automobile steering knuckle" with authorization publication number CN221585550U and authorization publication date 2024-08-23, when working, multiple groups of spring columns contact the outer wall of the connecting frame through the push plate. When the steering yoke of the steering knuckle is impacted, the multiple groups of spring columns elastically buffer the impact force through the springs inside them to protect the steering knuckle, so as to improve the driving stability of the vehicle. An oil filling port is opened at the upper end of the annular shell, and the stored lubricating oil can be absorbed by the sponge brush, and then the support ring is continuously pushed by the first spring, so that the sponge brush can continuously contact the bearing to achieve the effect of lubricating the bearing to reduce wear; however, in the actual use of the above-mentioned device, there is a sealing problem of the lubricating oil stored in the sponge brush, the lubricating oil loss is large, and there is a volatilization problem, which reduces the amount of lubricating oil in the sponge brush and affects normal use.

[0004] Therefore we propose a shock-absorbing automobile steering knuckle to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model aims to provide a shock-absorbing automobile steering knuckle to solve the problems in the current market raised by the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] To achieve the above object, the utility model provides the following technical solution: a shock-absorbing automobile steering knuckle, comprising a flange, a steering yoke is installed on both the left and right sides of the lower end of the flange, a buffer groove is opened on the side of the steering yoke, and a shock-absorbing member is installed inside the buffer groove;

[0009] A connecting shaft is installed on the middle upper end bearing of the flange, and an annular shell is provided on the outer sliding sleeve of the connecting shaft. The annular shell is installed above the flange, and an oil injection mechanism is provided at the lower part of the annular shell to replenish lubricating oil to the connecting shaft bearing.

[0010] Furthermore, the shock absorber includes a movable shell slidably installed inside the buffer groove, a damping block is fixed to the side outer wall of the movable shell, a buffer spring is installed between the damping block and the steering yoke, and the damping block is slidably arranged inside the steering yoke.

[0011] Through the above technical solution, buffering is achieved under the cooperation of the buffer spring and the damping block.

[0012] Furthermore, a first capsule is installed between the movable housing and the steering yoke.

[0013] Through the above technical solution, the movable shell can squeeze the first capsule during the displacement process.

[0014] Furthermore, a storage box is installed above the interior of the annular shell, and an oil filling pipe is installed at the upper end of the storage box.

[0015] Through the above technical solution, the shell is allowed to fill oil into the storage box through the oil filling pipe.

[0016] Furthermore, the oil filling mechanism includes a movable plate and a fixed plate which are installed in sequence from top to bottom below the storage box, the movable plate is slidably arranged inside the annular shell, and the fixed plate is fixedly installed inside the annular shell, and a second capsule is connected and installed between the upper end of the movable plate and the annular shell, and the second capsule is connected to the first capsule.

[0017] Through the above technical solution, after the first bladder body is squeezed, the second bladder body can be expanded.

[0018] Furthermore, a flow cavity is reserved between the movable plate and the fixed plate, and an oil outlet is installed on the flow cavity corresponding to the connecting shaft bearing, and the flow cavity is connected to the storage box and the oil outlet respectively through a one-way valve.

[0019] Through the above technical solution, when the movable plate moves downward, the lubricating oil in the flow cavity can lubricate the bearing through the oil outlet.

[0020] 3. Beneficial effects:

[0021] By adopting the technical solution provided by the utility model, compared with the prior art, the shock-absorbing automobile steering knuckle of the utility model realizes the shock-absorbing and buffering effect through the shock-absorbing member, and at the same time realizes the lubrication operation of the bearing by using the oil injection mechanism, and can avoid evaporation and leakage to ensure the normal use of the lubricating oil. The specific contents are as follows:

[0022] By designing a shock absorber between the steering yoke and the axle, when the vehicle is running and vibration occurs between the axle and the steering knuckle of the vehicle, the movable shell on the shock absorber slides inside the buffer groove, and when the buffer spring is reset, the friction between the damping block and the steering yoke provides damping force, thereby ensuring the shock absorption effect, achieving buffering, and improving the protection effect;

[0023] When the movable shell slides inside the buffer groove, the movable shell will be squeezed toward the first capsule. Since the first capsule is interconnected with the second capsule, the gas inside the first capsule can enter the second capsule, and the second capsule then expands, squeezing the movable plate, driving the movable plate to move downward. During the downward movement of the movable plate, the lubricating oil in the flow cavity will be injected into the bearing of the connecting shaft through the oil outlet to achieve lubrication. At the same time, when the movable shell does not squeeze the first capsule, under the elastic action of the capsule itself, the second capsule drives the movable plate to move up and return to its original position. During the upward movement, negative pressure is formed in the flow cavity, and the lubricating oil in the storage box can be drawn into the flow cavity for reuse. Since most of the lubricating oil is stored in the storage box, evaporation and leakage are avoided, thereby ensuring the normal use of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall side-view stereoscopic structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the steering yoke of the utility model in side section;

[0026] Figure 3 This is a schematic diagram of the internal structure of the annular housing of the utility model;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the flow chamber of the utility model in side section.

[0028] In the figure: 1. flange; 2. steering yoke; 21. buffer groove; 3. connecting shaft; 4. annular shell; 5. shock absorber; 51. movable shell; 52. damping block; 53. buffer spring; 54. first capsule; 6. storage box; 61. oil filling pipe; 7. movable plate; 8. fixed plate; 9. flow chamber; 10. second capsule; 11. oil outlet. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0033] See also Figure 1-4 A shock-absorbing automobile steering knuckle comprises a flange 1, a steering yoke 2 is installed on both left and right sides of the lower end of the flange 1, a buffer groove 21 is opened on the side of the steering yoke 2, and a shock-absorbing member 5 is installed inside the buffer groove 21; the shock-absorbing member 5 comprises a movable housing 51 slidably installed inside the buffer groove 21, a damping block 52 is fixed to the side outer wall of the movable housing 51, a buffer spring 53 is installed between the damping block 52 and the steering yoke 2, and the damping block 52 is slidably arranged inside the steering yoke 2;

[0034] By designing a shock absorber 5 between the steering yoke 2 and the axle, when the vehicle is running and vibration occurs between the axle and the steering knuckle of the vehicle, the movable housing 51 on the shock absorber 5 slides inside the buffer groove 21, and when the buffer spring 53 is reset, the friction between the damping block 52 and the steering yoke 2 provides a damping force, thereby ensuring the shock absorption effect, achieving buffering, and improving the protection effect;

[0035] The middle upper end bearing of the flange 1 is equipped with a connecting shaft 3, and the outer sliding sleeve of the connecting shaft 3 is equipped with an annular housing 4, and the annular housing 4 is installed above the flange 1, and an oil injection mechanism is provided at the lower part of the annular housing 4, and the oil injection mechanism replenishes the lubricating oil at the bearing of the connecting shaft 3; a first capsule 54 is installed between the movable housing 51 and the steering yoke 2; a storage box 6 is installed above the inner part of the annular housing 4, and an oil injection pipe 61 is installed at the upper end of the storage box 6; the oil injection mechanism includes a plurality of oil injection pipes 61 installed at the storage box 6 from top to bottom. The movable plate 7 and the fixed plate 8 below the box 6 are arranged in a sliding manner inside the annular shell 4, and the fixed plate 8 is fixedly installed inside the annular shell 4, and a second capsule 10 is connected and installed between the upper end of the movable plate 7 and the annular shell 4, and the second capsule 10 is communicated with the first capsule 54; a flow cavity 9 is reserved between the movable plate 7 and the fixed plate 8, and an oil outlet 11 is installed on the flow cavity 9 corresponding to the bearing of the connecting shaft 3, and the flow cavity 9 is communicated with the storage box 6 and the oil outlet 11 respectively through a one-way valve;

[0036] When the movable shell 51 slides inside the buffer groove 21, the movable shell 51 will be squeezed toward the first capsule 54. Since the first capsule 54 and the second capsule 10 are interconnected, the internal gas of the first capsule 54 can enter the second capsule 10, and the second capsule 10 then expands. The second capsule 10 squeezes the movable plate 7 during the expansion process and drives the movable plate 7 to move downward. During the downward movement of the movable plate 7, the lubricating oil in the flow chamber 9 will be injected into the bearing of the connecting shaft 3 through the oil outlet 11 to achieve lubrication. At the same time, when the movable shell 51 does not squeeze the first capsule 54, under the elastic action of the capsule itself, the second capsule 10 drives the movable plate 7 to move up and return to its original position. During the upward movement, negative pressure is formed in the flow chamber 9, and the lubricating oil in the storage box 6 can be drawn into the flow chamber 9 for reuse. Since most of the lubricating oil is stored in the storage box 6, evaporation and leakage are avoided, thereby ensuring the normal use of the lubricating oil.

[0037] Working principle: When using this shock-absorbing automobile steering knuckle, Figure 1-4As shown, a shock absorber 5 is designed between the steering yoke 2 and the vehicle axle. When the vehicle is running and vibration occurs between the vehicle axle and the vehicle steering knuckle, the movable shell 51 on the shock absorber 5 slides inside the buffer groove 21. When the buffer spring 53 is reset, the friction between the damping block 52 and the steering yoke 2 provides a damping force, thereby ensuring the shock absorption effect, achieving buffering, and improving the protection effect. When the movable shell 51 slides inside the buffer groove 21, the movable shell 51 can be squeezed toward the first capsule 54. By utilizing the cooperation between the first capsule 54 and the second capsule 10, the lubricating oil in the flow cavity 9 can be injected into the bearing of the connecting shaft 3 through the oil outlet 11 to achieve lubrication. At the same time, the lubricating oil in the storage box 6 can be pumped into the flow cavity 9 for reuse. Since most of the lubricating oil is stored in the storage box 6, evaporation and leakage are avoided, thereby ensuring the normal use of the lubricating oil.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock-absorbing automobile steering knuckle, characterized in that: It comprises a flange (1), wherein a steering yoke (2) is installed on both left and right sides of the lower end of the flange (1), a buffer groove (21) is opened on the side of the steering yoke (2), and a shock absorbing member (5) is installed inside the buffer groove (21); A connecting shaft (3) is installed at the middle upper end bearing of the flange (1), and an annular housing (4) is provided on the outer sliding sleeve of the connecting shaft (3). The annular housing (4) is installed above the flange (1), and an oil injection mechanism is provided at the lower part of the annular housing (4). The oil injection mechanism replenishes lubricating oil at the bearing of the connecting shaft (3).

2. The shock-absorbing automobile steering knuckle according to claim 1, characterized in that: The shock absorbing member (5) comprises a movable housing (51) slidably mounted inside the buffer groove (21); a damping block (52) is fixed to the side outer wall of the movable housing (51); a buffer spring (53) is installed between the damping block (52) and the steering yoke (2); and the damping block (52) is slidably arranged inside the steering yoke (2).

3. The shock-absorbing automobile steering knuckle according to claim 2, characterized in that: A first capsule (54) is installed between the movable housing (51) and the steering yoke (2).

4. The shock-absorbing automobile steering knuckle according to claim 1, characterized in that: A storage box (6) is installed above the interior of the annular housing (4), and an oil filling pipe (61) is installed at the upper end of the storage box (6).

5. The shock-absorbing automobile steering knuckle according to claim 1, characterized in that: The oil injection mechanism comprises a movable plate (7) and a fixed plate (8) which are sequentially installed below the storage box (6) from top to bottom, the movable plate (7) is slidably arranged inside the annular shell (4), and the fixed plate (8) is fixedly installed inside the annular shell (4), and a second capsule (10) is connected and installed between the upper end of the movable plate (7) and the annular shell (4), and the second capsule (10) is communicated with the first capsule (54).

6. The shock-absorbing automobile steering knuckle according to claim 5, characterized in that: A flow chamber (9) is reserved between the movable plate (7) and the fixed plate (8), and an oil outlet (11) is installed on the flow chamber (9) at a position corresponding to the bearing of the connecting shaft (3), and the flow chamber (9) is connected to the storage box (6) and the oil outlet (11) respectively through a one-way valve.

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