Automobile steering tie rod assembly

Abstract

The utility model discloses a kind of automobile steering drag link assembly, which belongs to the technical field of automobile steering. It mainly includes front axle assembly and steering gear, and the two sides of front axle assembly are rotatably connected with steering knuckle, and the shaft end of steering gear is fixedly connected with steering rocker, and the other end of steering rocker is rotatably connected with steering straight drag link, the bottom end of ball pin two is rotatably connected with steering knuckle arm, and the other end of steering knuckle arm is fixedly connected with upper part of steering knuckle, and the bottom of steering knuckle is fixedly connected with trapezoidal arm, and the other end of trapezoidal arm is rotatably connected with steering cross drag link, and the other end of steering cross drag link is connected with another set of steering knuckle through trapezoidal arm. The utility model is provided with steering straight drag link, compared with existing equipment, which reduces ring hoop, avoids slotting in the side wall of straight drag link, improves operability, and improves the structural strength of straight drag link. The utility model is mainly used for vehicle steering system.

Description

Technical Field

[0001] This utility model belongs to the field of automotive steering technology, and more specifically, it relates to an automotive steering tie rod assembly. Background Technology

[0002] The steering tie rod assembly is the core transmission component of the steering system. It is responsible for transmitting the steering force output by the steering gear to the steering knuckles on both sides, and ultimately controlling the wheel deflection to achieve steering. It also directly affects the vehicle's steering accuracy, driving stability and tire wear. The steering tie rod is an important part of the automotive steering mechanism.

[0003] Chinese patent publication number "CN209366265U" discloses an automotive steering tie rod, including a rod body, a standard rod member, and two connector assemblies. One end of the rod body is connected to the standard rod member, and the other end of the rod body is connected to one of the connector assemblies. The end of the standard rod member away from the rod body is connected to the other connector assembly. The steering tie rod body is composed of a rod body and a standard rod member. The standard rod member can be made into a standard part, which is convenient for mass production and improves production efficiency, while the rod body can be made into the required length according to actual needs.

[0004] During later use, the device still has the following problems: the adjustment structure is large in size, the steering tie rod has the smallest gap with the surrounding parts within the overall vehicle design stroke, and in order to avoid the adjustment structure, the structure and position of the corresponding parts will be adjusted, sometimes sacrificing performance parameters; it is heavy; it is costly; the adjustment mechanism is complex and inconvenient to operate. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automotive steering tie rod assembly. By setting a steering tie rod, it reduces the number of rings compared to existing equipment and avoids slotting on the side wall of the tie rod, which improves both operability and structural strength of the tie rod.

[0006] The aforementioned automotive steering tie rod assembly includes a front axle assembly and a steering gear. Both sides of the front axle assembly are rotatably connected to steering knuckles. A steering rocker arm is fixedly connected to the shaft end of the steering gear, and the other end of the steering rocker arm is rotatably connected to a steering tie rod. The steering tie rod includes a ball pin 1, which is rotatably connected to the steering rocker arm. An adjusting nut 1 is threadedly connected to the screw end of the ball pin 1, and the adjusting nut 1 is rotatably connected to the tie rod. Multiple sets of flat openings 1 are fixedly formed on the outer wall of the front part of the tie rod. A ball pin 2 is fixedly connected to the other end of the tie rod. A steering knuckle arm is rotatably connected to the bottom end of the ball pin 2. The other end of the steering knuckle arm is fixedly connected to the upper part of the steering knuckle. A trapezoidal arm is fixedly connected to the bottom of the steering knuckle. A steering tie rod is rotatably connected to the other end of the trapezoidal arm, and the other end of the steering tie rod is connected to another set of steering knuckles through the trapezoidal arm.

[0007] Preferably, an extended shaft extends outward from one side of the steering gear, a base is fixedly provided at the bottom of the extended shaft, a rib is fixedly provided on one side of the base, a lower baffle is fixedly provided at the bottom of the rib, a protrusion one is provided at the bottom of the base, a protrusion two is fixedly provided on the inner side wall of the lower baffle, and screw holes are provided on both protrusion one and protrusion two.

[0008] Preferably, the steering tie rod includes a tie rod, both ends of which are rotatably connected to an adjusting nut two, the adjusting nut two being threadedly connected to a ball pin three, the other end of the ball pin three being rotatably connected to a trapezoidal arm, and a flat opening two is fixedly opened on the side wall of the tie rod.

[0009] Preferably, the front axle assembly includes a main beam steel pipe, with side main beams fixedly connected to both sides of the main beam steel pipe, pins rotatably connected to the side main beams, a plane bearing fixedly installed at the bottom of the side main beams, and both ends of the pins fixedly connected to the steering knuckles. Leaf spring mounting seats are fixedly connected to the outer walls of both sides of the main beam steel pipe, and a front subframe mounting bracket is fixedly installed on the inner side of the leaf spring mounting seat. A shock absorber mounting base is fixedly installed at the lower part of the front subframe mounting bracket.

[0010] Preferably, the side main beam has sun-shaped grooves fixedly opened on both the front and rear sides.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a steering tie rod, the number of ring clamps is reduced compared to existing equipment, and the slotting of the tie rod side wall is avoided, which improves both operability and structural strength of the tie rod; the length of the steering tie rod can be adjusted by simply rotating the adjusting nut, thereby changing the performance of the vehicle steering system. 2. By setting a base and a lower baffle, the steering gear is connected to the top and side of the longitudinal beam of the vehicle body, increasing the stability of the connection. By milling the end faces of protrusion one and protrusion two, the installation accuracy of the steering gear and the vehicle body is ensured. 3. By setting the H-shaped groove, the weight of the side main beam is reduced, while ensuring that the side main beam can still bear the vertical load of the vehicle. Compared with the existing O-shaped groove used in automobile side main beams, the side main beam with the H-shaped groove can withstand a larger torsional moment and has stronger support and more support strength redundancy for various complex torque loads transmitted from the vehicle tires. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the steering gear and steering rocker arm. Figure 3 This is a schematic diagram of the bottom structure of the steering gear; Figure 4 This is a structural diagram of the steering tie rod and steering knuckle arm; Figure 5 This is a schematic diagram of the steering knuckle. Figure 6 This is a structural diagram of the steering tie rod and front axle assembly. Figure 7 This is a structural schematic diagram of the front axle assembly.

[0013] In the diagram, 1. Front axle assembly; 101. Main beam steel tube; 101A. Leaf spring mounting bracket; 101B. Front subframe mounting bracket; 101C. Shock absorber mounting bracket; 102. Side main beam; 102A. H-shaped groove; 2. Steering gear; 201. Extended axle cylinder; 202. Base; 202A. Protrusion one; 203. Rib plate; 204. Lower baffle; 204A. Protrusion two; 3. Steering gear 4. Rocker arm; 5. Steering tie rod; 401. Ball pin one; 402. Tie rod; 402A. Flat end one; 403. Adjusting nut one; 404. Ball pin two; 6. Steering knuckle; 501. Pin shaft; 502. Surface bearing; 7. Steering knuckle arm; 8. Trapezoidal arm; 9. Steering tie rod; 101. Ball pin three; 11. Tie rod; 12. Flat end two; 13. Adjusting nut two. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0015] like Figure 1 and Figure 4As shown, an automotive steering tie rod assembly includes a front axle assembly 1 and a steering gear 2. The steering gear 2 is a recirculating ball steering gear. Both sides of the front axle assembly 1 are rotatably connected to steering knuckles 5. A steering rocker arm 3 is fixedly connected to the shaft end of the steering gear 2. The steering rocker arm 3 converts the rotational motion of the steering gear 2 into the forward and backward movement of the steering tie rod 4. The other end of the steering rocker arm 3 is rotatably connected to the steering tie rod 4. By setting the steering tie rod 4, the ring clamp is reduced compared to existing equipment, and the slotting on the side wall of the tie rod 402 is avoided, which improves both operability and structural strength of the tie rod 402. Only rotation adjustment is required. Adjusting nut 403 allows for adjustment of the length of the steering tie rod 4, thus altering the performance of the vehicle's steering system. The steering tie rod 4 includes a ball pin 401, with a rotating end and a screw end. The ball pin 401 is rotatably connected to the steering rocker arm 3. The screw end of the ball pin 401 is threadedly connected to an adjusting nut 403, which is rotatably connected to a tie rod 402. The front outer wall of the tie rod 402 has multiple sets of flat openings 402A, with four parallel flat openings for wrench engagement. The length of the steering tie rod 4 is adjusted in conjunction with the adjusting nut 403.

[0016] The other end of the tie rod 402 is fixedly connected to a ball joint 404. The bottom end of the ball joint 404 is rotatably connected to a steering knuckle arm 6, and the rotating end of the ball joint 404 is rotatably connected to the steering knuckle arm 6. The other end of the steering knuckle arm 6 is fixedly connected to the upper part of the steering knuckle 5. The steering knuckle arm 6 is driven by the tie rod 4, causing the steering knuckle 5 to rotate and the vehicle to begin steering. The bottom of the steering knuckle 5 is fixedly connected to a trapezoidal arm 7, and the other end of the trapezoidal arm 7 is rotatably connected to a steering tie rod 8. The other end of the steering tie rod 8 is connected to another set of steering knuckles 5 through the trapezoidal arm 7. By setting the trapezoidal arm 7 and the steering tie rod 8, the steering of the two sets of steering knuckles 5 is the same, and the drive of the steering gear 2 is simultaneously transmitted to the two sets of steering knuckles 5, realizing the synchronization of the car's steering wheels.

[0017] like Figure 2 and Figure 3 As shown, an extended shaft 201 extends outward from one side of the steering gear 2. A base 202 is fixedly mounted on the bottom of the extended shaft 201, and a rib 203 is fixedly mounted on one side of the base 202. The rib 203 improves the structural strength of the base 202 and the extended shaft 201. A lower baffle 204 is fixedly mounted on the bottom of the rib 203. A protrusion 1 202A is located on the bottom of the base 202, and a protrusion 204A is fixedly mounted on the inner side wall of the lower baffle 204. Both protrusions 1 202A and 204A have screw holes. By setting the base 202 and the lower baffle 204, the steering gear 2 is connected to the top and side of the vehicle body longitudinal beam, increasing the stability of the connection. The end faces of protrusions 1 202A and 204A are milled to ensure the installation accuracy of the steering gear 2 and the vehicle body.

[0018] like Figure 6 As shown, the steering tie rod 8 includes a tie rod 802, with adjusting nuts 803 rotatably connected to both ends of the tie rod 802. Each adjusting nut 803 is threaded with a ball joint 801, the other end of which is rotatably connected to a trapezoidal arm 7. A flat opening 802A is fixedly provided on the side wall of the tie rod 802. By using a wrench to hold the flat opening 802A and rotating the adjusting nut 803, the length of the steering tie rod 8 can be further adjusted to ensure the synchronous rotation of the two sets of steering knuckles 5.

[0019] like Figure 7 As shown, the front axle assembly 1 includes a main beam steel pipe 101, with side main beams 102 fixedly connected to both sides of the main beam steel pipe 101. The main beam steel pipe 101 and the side main beams 102 are fixed by welding. Figure 5 As shown, a pin 501 is rotatably connected to the side main beam 102, and a plane bearing 502 is fixedly installed at the bottom of the side main beam 102. The plane bearing 502 bears the downward axial load of the side main beam 102. The two ends of the pin 501 are fixedly connected to the steering knuckle 5, and the two ends of the pin 501 are riveted to fix the pin 501 to the steering knuckle 5. Leaf spring mounting seats 101A are fixedly connected to the outer walls of both sides of the main beam steel pipe 101. The leaf springs are supported by the leaf spring mounting seats 101A. A front subframe mounting bracket 101B is also fixedly installed on the inner side of the leaf spring mounting seat 101A. The front subframe is installed by the front subframe mounting bracket 101B. A shock absorber mounting bracket 101C is fixedly installed at the lower part of the front subframe mounting bracket 101B. The shock absorber is installed by the shock absorber mounting bracket 101C.

[0020] The side main beam 102 has H-shaped grooves 102A fixedly provided on both its front and rear sides. By setting the H-shaped grooves 102A, the weight of the side main beam 102 is reduced, while ensuring that the side main beam 102 can still bear the vertical load of the vehicle. Compared with the U-shaped grooves used in existing automotive side main beams, the side main beam 102 with H-shaped grooves 102A can withstand greater torsional moments and has stronger support and more support strength redundancy for various complex torque loads transmitted from the vehicle tires.

[0021] This utility model achieves the connection between the steering gear 2 and the top and side of the vehicle body longitudinal beam by setting the base 202 and the lower baffle 204, thereby increasing the stability of the connection. By milling the end faces of protrusion 1 202A and protrusion 2 204A, the installation accuracy of the steering gear 2 and the vehicle body is ensured. By setting the H-shaped groove 102A, the weight of the side main beam 102 is reduced, while ensuring that the side main beam 102 can still bear the vertical load of the vehicle. Compared with the existing automotive side main beam using the scalloped groove, the side main beam 102 using the H-shaped groove 102A can withstand a larger torsional moment and has stronger support and more support strength redundancy for various complex torque loads transmitted from the vehicle tires.

Claims

1. A car steering tie rod assembly, characterized in that: The system includes a front axle assembly and a steering gear. Both sides of the front axle assembly are rotatably connected to the steering knuckles. The steering gear has a steering rocker arm fixedly connected to the shaft end, and the other end of the steering rocker arm is rotatably connected to the steering tie rod. The steering tie rod includes a ball pin 1, which is rotatably connected to the steering rocker arm. The screw end of the ball pin 1 is threadedly connected to an adjusting nut 1, which is rotatably connected to the tie rod. Multiple sets of flat openings 1 are fixedly opened on the outer wall of the front part of the tie rod. The other end of the tie rod is fixedly connected to a ball pin 2, and the bottom end of the ball pin 2 is rotatably connected to a steering knuckle arm. The other end of the steering knuckle arm is fixedly connected to the upper part of the steering knuckle. The bottom of the steering knuckle is fixedly connected to a trapezoidal arm, and the other end of the trapezoidal arm is rotatably connected to a steering tie rod. The other end of the steering tie rod is connected to another set of steering knuckles through the trapezoidal arm.

2. The automotive steering tie rod assembly according to claim 1, characterized in that: An extended shaft extends outward from one side of the steering gear. A base is fixedly installed at the bottom of the extended shaft. A rib is fixedly installed on one side of the base. A lower baffle is fixedly installed at the bottom of the rib. A protrusion 1 is provided at the bottom of the base. A protrusion 2 is fixedly installed on the inner side wall of the lower baffle. Screw holes are provided on both protrusion 1 and protrusion 2.

3. The automotive steering tie rod assembly according to claim 1, characterized in that: The steering tie rod includes a tie rod, both ends of which are rotatably connected to an adjusting nut two. The adjusting nut two is threadedly connected to a ball pin three. The other end of the ball pin three is rotatably connected to a trapezoidal arm. A flat opening two is fixedly opened on the side wall of the tie rod.

4. The automotive steering tie rod assembly according to claim 1, characterized in that: The front axle assembly includes a main beam steel pipe, with side main beams fixedly connected to both sides of the main beam steel pipe. Pins are rotatably connected to the side main beams, and a plane bearing is fixedly installed at the bottom of the side main beams. Both ends of the pins are fixedly connected to the steering knuckles. Leaf spring mounting seats are fixedly connected to the outer walls of both sides of the main beam steel pipe. A front subframe mounting bracket is also fixedly installed on the inner side of the leaf spring mounting seat. A shock absorber mounting base is fixedly installed at the lower part of the front subframe mounting bracket.

5. The automotive steering tie rod assembly according to claim 4, characterized in that: The main side beam has sun-shaped grooves fixedly opened on both the front and rear sides.

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