A steering shaft kingpin

Abstract

This utility model relates to the field of steering shaft kingpin technology, and discloses a steering shaft kingpin including a threaded pin. An adjustment mechanism is provided on the outer and inner walls of the threaded pin. The adjustment mechanism is used to adjust the installation length. A fixing mechanism is fixedly connected to the bottom of the adjustment mechanism, and the fixing mechanism is used to fix the steering shaft kingpin. The adjustment mechanism includes a fixing plate, which is fixed to the bottom of the outer wall of the threaded pin. A sliding groove is formed on the outer wall of the threaded pin, and an adjustment component is slidably connected to the outer wall of the sliding groove. A rotating component is threadedly connected to the outer wall of the threaded pin. In this utility model, a sliding groove is formed on the outer wall of the threaded pin, and a fixing circular plate fixed to the top of the threaded pin can drive the device fixing the outer wall of the ball bearing to rotate freely through a connecting sleeve, thereby meeting the requirement of freely adjusting the length and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steering shaft kingpin technology, and in particular to a steering shaft kingpin. Background Technology

[0002] In the era of intelligent and electric vehicles, the chassis system, as the core carrier of vehicle handling performance, is particularly critical for the technological iteration of its key components. The kingpin of the steering shaft, as the hub connecting the steering knuckle and the vehicle's suspension system, plays an important role in transmitting steering force, supporting wheel loads, and ensuring vehicle driving stability. According to data from the Society of Automotive Engineers (SAE), this has prompted automakers and research institutions to continuously explore safer, more efficient, and lighter kingpin technology solutions. At the same time, with the rapid increase in the market penetration rate of new energy vehicles, electric platforms have placed higher demands on chassis components: on the one hand, the additional weight of the power battery has increased the load pressure on the kingpin of the steering shaft; on the other hand, the high torque output characteristics of the electric motor have led to an increase in the instantaneous impact force on the steering system.

[0003] Currently, steering shaft kingpins on the market mainly consist of a main structural component and supporting and lubricating components. Traditional steering shaft kingpins often adopt an integral or split fixed structure design, with their length parameters determined during the product design stage. After hot forging, they undergo carburizing and quenching treatment to form a rigid integrated structure. While this design ensures the high strength and stability of the kingpin, it makes it difficult to adjust the length later. Once manufactured, the length parameters are locked and cannot be changed according to the actual needs of the vehicle. To achieve large-scale production and cost control, the automotive manufacturing industry generally adopts a standardized component system, and the steering shaft kingpin, as a common component... The components used need to be adapted to the suspension systems and steering mechanisms of different car models. This requires that the key parameters of their length remain relatively fixed. Multiple models on the same platform share standardized kingpin components, and the length error is controlled within a very small range to ensure the efficient operation of the production line and the interchangeability of parts. At the same time, the manufacturing of kingpins often adopts a combination of forging, machining and heat treatment processes. During the forging process, the plastic deformation characteristics of the metal material determine the basic shape and size of the kingpin. Although subsequent machining can make dimensional corrections, the adjustment range is limited, and the residual stress and surface hardness of the material must be considered. Over-machining may lead to a decrease in the strength of the kingpin and surface damage. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a steering shaft kingpin, which aims to improve the problem that the traditional steering shaft kingpin in the prior art is not easy to adjust in length.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a steering shaft main pin, including a threaded pin, wherein an adjustment mechanism is provided on the outer and inner walls of the threaded pin, the adjustment mechanism is used to adjust the installation length, and a fixing mechanism is fixedly connected to the bottom of the adjustment mechanism, the fixing mechanism is used to fix the steering shaft main pin in place.

[0006] The adjustment mechanism includes a fixing plate, which is fixed to the bottom of the outer wall of the threaded pin. The outer wall of the threaded pin has a sliding groove, and an adjustment component is slidably connected to the outer wall of the sliding groove. A rotating component is threadedly connected to the outer wall of the threaded pin. A connecting component is fixedly connected to the outer wall of the adjustment component, and an installation component is fixedly connected to the bottom of the connecting component.

[0007] As a further description of the above technical solution: the fixing mechanism includes a second fixing plate, which is fixed to the bottom of a first fixing plate. The second fixing plate has an installation hole in the middle of its outer wall. Positioning components are slidably connected to the left and right sides of the outer wall of the second fixing plate. The first fixing component is provided on the front and rear sides of the middle of the outer wall of the second fixing plate. A locking component is fixedly connected to the bottom of the outer wall of the second fixing plate. The second fixing component is threadedly connected to the bottom left and right sides of the inner wall of the locking component.

[0008] As a further description of the above technical solution: the adjusting component includes a threaded sleeve, the outer wall of which is threadedly connected to the bottom of the outer wall of the threaded pin, and the bottom of the threaded sleeve contacts the sliding sleeve.

[0009] As a further description of the above technical solution: the connecting component includes a sliding shaft, the sliding shaft is fixed to the inner wall of the sliding sleeve, and a sliding circular plate is fixedly connected to the middle of the outer wall of the sliding shaft.

[0010] As a further description of the above technical solution: the mounting assembly includes a pin, the top of which is fixed to the bottom of the sliding circular plate, and the bottom of the outer wall of the sliding shaft is provided with a threaded groove.

[0011] As a further description of the above technical solution: the positioning component includes a connecting circular plate, which is slidably connected to the left and right sides of the inner wall of the second fixing plate, and pins are fixedly connected to the left and right sides of the inner wall of the second fixing plate near the edge.

[0012] As a further description of the above technical solution: the rotating assembly includes a fixed circular plate, the bottom of which is fixed to the top of a threaded pin, and rolling balls are rotatably connected to the outer walls of the fixed circular plate, with connecting sleeves rotatably connected to the outer walls of the rolling balls.

[0013] As a further description of the above technical solution: the fixing component one includes a threaded sleeve, the outer wall of the threaded sleeve is fixed to the front and rear sides of the middle part of the inner wall of the fixing plate two, and the inner wall of the threaded sleeve is threadedly connected to a threaded shaft one.

[0014] As a further description of the above technical solution: the locking assembly includes a fixed sleeve, the top of which is fixed to the middle of the bottom surface of the fixed plate two, and pins three are slidably connected to the inner wall of the fixed sleeve near the bottom left and right sides, and threaded shafts three are threadedly connected to the outer wall of the fixed sleeve near the top front and rear sides.

[0015] As a further description of the above technical solution: the second fixing component includes a fixing screw, the outer wall of the fixing screw is threadedly connected to the left and right sides of the bottom of the inner part of the fixing sleeve, and a washer is fixedly connected to the outer wall of the fixing screw.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, a sliding groove is provided on the outer wall of the threaded pin. The sliding groove allows the threaded sleeve to squeeze the sliding sleeve when rotating, and at the same time, the sliding sleeve can drive the sliding circular plate fixed on the outer wall to slide in the inner wall of the threaded pin through the sliding shaft. This allows the pin fixed at the bottom of the sliding circular plate to be installed through the threaded groove. Meanwhile, the fixed circular plate fixed at the top of the threaded pin can drive the device fixed on the outer wall of the ball to rotate freely through the connecting sleeve, thereby meeting the requirement of freely adjusting the length and improving work efficiency.

[0018] 2. In this utility model, connecting circular plates slide on both the left and right sides of the inner wall of the second fixing plate. At the same time, pins two are fixed on both the left and right sides near the middle of the inner wall of the second fixing plate for positioning and connection. Threaded sleeves are fixed on both the front and rear sides of the middle of the inner wall of the second fixing plate. The inner wall of the threaded sleeve is fixed to the second fixing plate by pins two, and can cooperate with pin three to lock pin one. The fixing screws threaded on the left and right sides of the bottom of the inner wall of the fixing sleeve can enhance its fixing effect, maintain its stability, and meet the usage requirements. Attached Figure Description

[0019] Figure 1 A perspective view of the front side of the threaded pin of a steering shaft master pin proposed in this utility model;

[0020] Figure 2 This is a structural diagram of a connecting sleeve for a steering shaft kingpin proposed in this utility model;

[0021] Figure 3 This is a partial structural diagram of a circular plate for fixing a steering shaft kingpin according to the present invention;

[0022] Figure 4This utility model presents a structural diagram of a fixing plate for a steering shaft kingpin.

[0023] Figure 5 This is a schematic diagram of a fixing sleeve structure for a steering shaft kingpin proposed in this utility model.

[0024] Legend:

[0025] 1. Threaded pin; 2. Adjusting mechanism; 201. Sliding groove; 202. Fixed plate one; 203. Adjusting assembly; 2031. Threaded sleeve; 2032. Sliding sleeve; 204. Connecting assembly; 2041. Sliding shaft; 2042. Sliding circular plate; 205. Mounting assembly; 2051. Pin one; 2052. Threaded groove; 206. Rotating assembly; 2061. Fixed circular plate; 2062. Connecting sleeve; 2063. Ball bearing. 3. Fixing mechanism; 301. Fixing plate two; 302. Mounting hole; 303. Positioning component; 3031. Pin two; 3032. Connecting round plate; 304. Fixing component one; 3041. Threaded shaft one; 3042. Threaded sleeve; 305. Locking component; 3051. Fixing sleeve; 3052. Pin three; 3053. Threaded shaft three; 306. Fixing component two; 3061. Fixing screw; 3062. Washer. Detailed Implementation

[0026] 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.

[0027] Please see the appendix Figure 2 - Appendix Figure 4 The present invention provides an embodiment of a steering shaft master pin, including a threaded pin 1. An adjustment mechanism 2 is provided on the outer and inner walls of the threaded pin 1. The adjustment mechanism 2 is used to adjust the installation length. A fixing mechanism 3 is fixedly connected to the bottom of the adjustment mechanism 2. The fixing mechanism 3 is used to fix the steering shaft master pin in place.

[0028] The adjusting mechanism 2 includes a fixing plate 202, which is fixed to the bottom of the outer wall of the threaded pin 1. The outer wall of the threaded pin 1 has a sliding groove 201. The outer wall of the sliding groove 201 is slidably connected to an adjusting component 203. The outer wall of the threaded pin 1 is threadedly connected to a rotating component 206. The outer wall of the adjusting component 203 is fixedly connected to a connecting component 204. The bottom of the connecting component 204 is fixedly connected to an installation component 205. The outer wall of the threaded pin 1 is also connected to the rotating component 206 by a threaded connection. The rotation of the rotating component 206 can drive the adjustment component 203 to move. The outer wall of the adjusting component 203 is fixedly connected to a connecting component 204.

[0029] Specifically, the outer and inner walls of the threaded pin 1 are cleverly equipped with an adjustment mechanism 2. The main function of the adjustment mechanism 2 is to precisely adjust the installation length of the threaded pin 1 to adapt to different installation requirements. To ensure the stability of the threaded pin 1 after adjustment, a fixing mechanism 3 is firmly fixed to the bottom of the adjustment mechanism 2. This fixing mechanism 3 is specifically used to reliably fix the steering shaft main pin, ensuring that it will not loosen or shift during use. The structure of the adjustment mechanism 2 includes several key components, among which the fixing plate 202 is one of the core components. It is fixed to the bottom of the outer wall of the threaded pin 1, providing stable support for the entire adjustment mechanism 2. In order to realize the adjustment function, a sliding groove 201 is specially provided on the outer wall of the threaded pin 1. The outer wall of the sliding groove 201 cooperates with the adjustment component 203 through a sliding connection, so that the adjustment component 203 can slide freely in the sliding groove 201, thereby realizing precise adjustment of the installation length. The installation component 205 is finally connected to the steering shaft main pin, ensuring the stability and reliability of the entire adjustment and fixing process. The threaded pin 1 and its adjustment mechanism 2 can efficiently complete the task of adjusting and fixing the installation length.

[0030] Please see the appendix Figure 3 - Appendix Figure 5 The fixing mechanism 3 includes a second fixing plate 301, which is fixed to the bottom of a first fixing plate 202. A mounting hole 302 is provided in the middle of the outer wall of the second fixing plate 301. Positioning components 303 are slidably connected to the left and right sides of the outer wall of the second fixing plate 301. Fixing components 304 are provided on the front and rear sides of the middle of the outer wall of the second fixing plate 301. A locking component 305 is fixedly connected to the bottom of the outer wall of the second fixing plate 301. Fixing components 304 are provided on the front and rear sides of the middle of the outer wall of the second fixing plate 301. These fixing components 304 are mainly used to provide additional fixing and support to ensure the stability and reliability of the entire mechanism. At the same time, a locking component 305 is fixedly connected to the bottom of the outer wall of the second fixing plate 301. The function of the locking component 305 is to ensure that the mechanism is locked and fixed in a specific position. Fixing components 306 are threadedly connected to the left and right sides of the bottom of the inner wall of the locking component 305.

[0031] Specifically, the fixing mechanism 3 includes a component called fixing plate 2 301, which is securely installed at the bottom of another component called fixing plate 1 202 by a reliable fixing method. In order to realize the installation and connection function, a mounting hole 302 is opened in the middle of the outer wall of fixing plate 2 301. The mounting hole 302 is used for connection and fixing with other components. In addition, the left and right sides of the outer wall of fixing plate 2 301 are designed with sliding positioning components 303. These positioning components 303 can slide flexibly in the horizontal direction to realize precise positioning and adjustment functions. The bottom left and right sides of the inner wall of locking component 305 are equipped with fixing components 2 306 by threaded connection. These fixing components 2 306 can be tightened and loosened by rotating the threads, thereby providing a more flexible and reliable fixing function.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 The adjusting assembly 203 includes a threaded sleeve 2031, the outer wall of which is threadedly connected to the bottom of the outer wall of the threaded pin 1. The bottom of the threaded sleeve 2031 contacts the sliding sleeve 2032. The connecting assembly 204 includes a sliding shaft 2041, which is fixed to the inner wall of the sliding sleeve 2032. A sliding circular plate 2042 is fixedly connected to the middle of the outer wall of the sliding shaft 2041. The mounting assembly 205 includes a first pin 2051, the top of which is fixed to the bottom of the sliding circular plate 2042. A threaded groove 2052 is formed at the bottom of the outer wall of the sliding shaft 2041. The rotating assembly... Component 206 includes a fixed circular plate 2061. A threaded groove 2052 is provided on the bottom of the outer wall of the sliding shaft 2041. The threaded groove 2052 is used to cooperate with other threaded components to realize the adjustment function. The rotating component 206 is mainly composed of a fixed circular plate 2061. The bottom of the fixed circular plate 2061 is fixedly installed on the top of the threaded pin 1 to ensure its stability on the threaded pin 1. The bottom of the fixed circular plate 2061 is fixed to the top of the threaded pin 1. Roller balls 2063 are rotatably connected around the outer wall of the fixed circular plate 2061. A connecting sleeve 2062 is rotatably connected to the outer wall of multiple roller balls 2063.

[0033] Specifically, the adjusting component 203 includes a threaded sleeve 2031. The outer wall of the threaded sleeve 2031 is tightly connected to the bottom of the outer wall of the threaded pin 1 via threads, ensuring a firm and adjustable connection. The bottom of the threaded sleeve 2031 directly contacts the sliding sleeve 2032, forming a sliding fit to allow smooth movement during adjustment. The connecting component 204 mainly consists of a sliding shaft 2041, which is fixedly installed on the inner wall of the sliding sleeve 2032 to ensure stable operation within the sliding sleeve 2032. The outer wall of the sliding shaft 2041... A sliding circular plate 2042 is fixedly connected in the middle. The sliding circular plate 2042 is used to connect with other components and transmit power. The mounting assembly 205 includes a pin 2051. The top of the pin 2051 is firmly fixed to the bottom of the sliding circular plate 2042 to ensure a stable connection between the two. Multiple balls 2063 are mounted around the outer wall of the fixed circular plate 2061 by a rotatable connection. The outer walls of these balls 2063 are rotatably connected to connecting sleeves 2062, thus forming a flexible rotating structure that allows the entire assembly to rotate smoothly and stably during operation.

[0034] Please see the appendix Figure 1 - Appendix Figure 3 The positioning component 303 includes a connecting circular plate 3032, which is slidably connected to the left and right sides of the inner wall of the second fixing plate 301. Pins 3031 are fixedly connected to the left and right sides of the inner wall of the second fixing plate 301 near their edges. The fixing component 304 includes a threaded sleeve 3042, the outer wall of which is fixed to the front and rear sides of the middle of the inner wall of the second fixing plate 301. A threaded shaft 3041 is threadedly connected to the inner wall of the threaded sleeve 3042. The locking component 305 includes a fixing sleeve 3051, the top of which is fixed to the middle of the bottom surface of the second fixing plate 301. Pins 3052 are slidably connected to the left and right sides of the inner wall of the fixing sleeve 3051 near its bottom. Pins 3052 are slidably connected to the outer wall of the fixing sleeve 3051 near its top. The front and rear sides of the component are threaded with threaded shaft 3053. The fixing component 2 306 includes fixing screw 3061. The outer wall of fixing screw 3061 is threaded to the left and right sides of the bottom inside of fixing sleeve 3051. A washer 3062 is fixedly connected to the outer wall of fixing screw 3061. The left and right sides of the outer wall of fixing sleeve 3051 near the top are threaded with threaded shaft 3053. The fixing component 2 306 is mainly composed of a fixing screw 3061. The outer wall of fixing screw 3061 is installed on the left and right sides of the bottom inside of fixing sleeve 3051 through threaded connection. A washer 3062 is also fixedly connected to the outer wall of fixing screw 3061 to enhance the stability and reliability of the connection.

[0035] Specifically, the positioning component 303 includes a connecting circular plate 3032, which is slidably installed on the left and right sides of the inner wall of the second fixing plate 301. Pins 3031 are securely fixed to the left and right sides of the inner wall of the second fixing plate 301 near their edges. The fixing component 304 mainly consists of a threaded sleeve 3042, the outer wall of which is fixed to the front and rear sides of the middle of the inner wall of the second fixing plate 301. The inner wall of the threaded sleeve 3042 is connected to the threaded shaft 3041 via a threaded connection. The locking component 305 includes a fixing sleeve 3051, the top of which is fixed to the middle of the bottom surface of the second fixing plate 301. Pins 3052 are slidably installed on the left and right sides of the inner wall of the fixing sleeve 3051 near the bottom.

[0036] Working principle: A sliding groove 201 is opened on the outer wall of the threaded pin 1. The sliding groove 201 allows the threaded sleeve 2031 to rotate and press against the sliding sleeve 2032. At the same time, when the sliding sleeve 2032 slides, it can drive the sliding circular plate 2042 fixed on the outer wall through the sliding shaft 2041 to slide in the inner wall of the threaded pin 1. This allows the pin 2051 fixed at the bottom of the sliding circular plate 2042 to be installed through the threaded groove 2052. Meanwhile, the fixed circular plate 2061 fixed at the top of the threaded pin 1 can drive the ball 2063 fixed on the outer wall to rotate freely through the connecting sleeve 2062, thereby meeting the requirement of free length adjustment and improving work efficiency.

[0037] Connecting circular plates 3032 slide on both the left and right sides of the inner wall of the second fixing plate 301. Pins 3031 are fixed on both the left and right sides near the center of the inner wall of the second fixing plate 301 for positioning and connection. Threaded sleeves 3042 are fixed on both the front and rear sides of the center of the inner wall of the second fixing plate 301. The inner wall of the threaded sleeves 3042 is fixed to the second fixing plate 301 via pins 3031. Pins 3052 slide on both the left and right sides near the top of the inner wall of the fixing sleeve 3051 fixed at the bottom of the second fixing plate 301. A threaded shaft 3053 is threaded to the front of the bottom of the outer wall of the fixing sleeve 3051, which can cooperate with pins 3052 to lock pin 2051. Fixing screws 3061 are threaded to the left and right sides of the bottom of the inner wall of the fixing sleeve 3051 to enhance its fixing effect, maintain its stability, and meet the usage requirements.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steering shaft kingpin, comprising a threaded pin (1), characterized in that: An adjustment mechanism (2) is provided on the outer and inner walls of the threaded pin (1). The adjustment mechanism (2) is used to adjust the installation length. A fixing mechanism (3) is fixedly connected to the bottom of the adjustment mechanism (2). The fixing mechanism (3) is used to fix the steering shaft main pin. The adjustment mechanism (2) includes a fixing plate (202) fixed to the bottom of the outer wall of the threaded pin (1). The outer wall of the threaded pin (1) is provided with a sliding groove (201). The outer wall of the sliding groove (201) is slidably connected to an adjustment component (203). The outer wall of the threaded pin (1) is threadedly connected to a rotating component (206). The outer wall of the adjustment component (203) is fixedly connected to a connecting component (204). The bottom of the connecting component (204) is fixedly connected to an installation component (205).

2. A steering shaft kingpin according to claim 1, characterized in that: The fixing mechanism (3) includes a second fixing plate (301), which is fixed to the bottom of a first fixing plate (202). The second fixing plate (301) has an installation hole (302) in the middle of its outer wall. The second fixing plate (301) has a positioning component (303) slidably connected to the left and right sides of its outer wall. The second fixing plate (301) has a first fixing component (304) on the front and back sides of its middle outer wall. The second fixing plate (301) has a locking component (305) fixedly connected to the bottom of its outer wall. The second fixing component (306) is threadedly connected to the bottom left and right sides of the inner wall of the locking component (305).

3. A steering shaft kingpin according to claim 1, characterized in that: The adjusting component (203) includes a threaded sleeve (2031), the outer wall of which is threadedly connected to the bottom of the outer wall of the threaded pin (1), and the bottom of the threaded sleeve (2031) is in contact with the sliding sleeve (2032).

4. A steering shaft kingpin according to claim 3, characterized in that: The connecting assembly (204) includes a sliding shaft (2041), which is fixed to the inner wall of the sliding sleeve (2032), and a sliding circular plate (2042) is fixedly connected to the middle of the outer wall of the sliding shaft (2041).

5. A steering shaft kingpin according to claim 4, characterized in that: The mounting assembly (205) includes a first pin (2051), the top of which is fixed to the bottom of the sliding circular plate (2042), and the bottom of the outer wall of the sliding shaft (2041) is provided with a threaded groove (2052).

6. A steering shaft kingpin according to claim 2, characterized in that: The positioning component (303) includes a connecting circular plate (3032), which is slidably connected to the left and right sides of the inner wall of the fixing plate (301). The left and right sides of the inner wall of the fixing plate (301) are fixedly connected with pins (3031) near the edge.

7. A steering shaft kingpin according to claim 1, characterized in that: The rotating assembly (206) includes a fixed circular plate (2061), the bottom of which is fixed to the top of the threaded pin (1). Roller balls (2063) are rotatably connected to the outer walls of the fixed circular plate (2061), and connecting sleeves (2062) are rotatably connected to the outer walls of the plurality of roller balls (2063).

8. A steering shaft kingpin according to claim 2, characterized in that: The fixing component one (304) includes a threaded sleeve (3042), the outer wall of which is fixed to the front and rear sides of the middle part of the inner wall of the fixing plate two (301), and the inner wall of the threaded sleeve (3042) is threadedly connected to a threaded shaft one (3041).

9. A steering shaft kingpin according to claim 2, characterized in that: The locking assembly (305) includes a fixed sleeve (3051), the top of which is fixed to the middle of the bottom surface of the fixed plate (301). The inner wall of the fixed sleeve (3051) is slidably connected to the left and right sides near the bottom, and the outer wall of the fixed sleeve (3051) is threadedly connected to the front and rear sides near the top.

10. A steering shaft kingpin according to claim 9, characterized in that: The second fixing component (306) includes a fixing screw (3061), the outer wall of which is threadedly connected to the left and right sides of the bottom of the fixing sleeve (3051), and a washer (3062) is fixedly connected to the outer wall of the fixing screw (3061).

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