CN202413912U - Steering knuckle for spatial multi-connecting rod straight-line guiding type suspension frame - Google Patents

Abstract

This utility model relates to a steering knuckle for a spatial multi-link linear guided suspension, comprising a steering knuckle body and a hub unit fixing shaft. The steering knuckle body has four lugs: an upper first lug and an upper second lug forming the upper lugs; and a lower first lug and a lower second lug forming the lower lugs. The steering knuckle body also includes a brake caliper support and a shock absorber support. The brake caliper support has a brake caliper connection hole, and the shock absorber support has a spring shock absorber connection hole. The advantages of this utility model are: the steering knuckle has a simple structure, is easy to manufacture, and is lightweight; it also has advantages such as strong design flexibility and convenient assembly and adjustment.

Description

Steering knuckle for spatial multi-link linear guided suspension

technical field

The utility model relates to a steering knuckle of auto parts, in particular to a connection support device for a space multi-link linear guide type independent suspension.

Background technique

The suspension of passenger cars in the market, especially mid-to-high-end cars, mostly adopts multi-link independent suspension. The steering knuckle used in conjunction is one of the key components in the suspension structure. Independent Suspension Each guide bar chain, shock absorber, brake calipers and hub bearings.

Although independent suspensions such as conventional multi-link suspensions can meet the suspension design requirements functionally, when the wheels run out, the wheel alignment parameters will change. In practical applications, any change in the positioning parameters of the wheels will have an adverse effect on the vehicle's handling stability or other aspects of performance. For example, changes in the wheelbase will lead to a decrease in the straight-line driving ability of the car, as well as an increase in rolling resistance and an impact on the steering system; changes in the camber angle of the wheels will lead to abnormal wear of the tires, etc. How to ensure that the wheel positioning parameters will not change when the wheel jumps is an important and difficult point in the innovative design of the independent suspension structure. In response to this problem, our company has invented a space multi-link linear guide suspension that can be used in automobile independent suspension systems, see [1. Zi Xiaolin, Zhao Jingshan, Zhang Jie, Liu Xiang, etc. with 3- Multi-link linear guide independent suspension of RRR telescopic compensation mechanism: China, 201120274238.5 [P]. 2011-08-01.]. The left and right wheelbase, toe-in (rear toe) and front-to-rear wheelbase remain basically unchanged during the up-and-down process of the wheels, thereby improving the car's handling stability, ride comfort and ride comfort, and can effectively reduce tire wear . At the same time, under the premise of strong practicability, the suspension mechanism can be guaranteed to have a relatively large stiffness in all directions, and the deformation under load can be reduced as much as possible.

The currently commonly used steering knuckle cannot match the new multi-link linear guide suspension, and cannot realize the smooth connection between each branch chain of the suspension mechanism and the hub unit, so it is necessary to design a steering knuckle mechanism suitable for this type of suspension .

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned shortcomings, and provide a steering knuckle for a space multi-link linear guide suspension, which can connect the branch chains, shock absorbers and brakes of the linear guide suspension. Calipers and hub bearings.

The purpose of this utility model is accomplished through the following technical scheme, which includes the steering knuckle main body and the fixed shaft of the wheel hub unit. The steering knuckle main body is provided with four lugs, which are respectively the upper first lugs constituting the upper side lugs. , the second lug on the upper side; the first lug on the lower side constituting the lower lug, the second lug on the lower side, and the main body of the steering knuckle is also provided with a brake caliper support and a shock absorber support; The brake caliper support is provided with a brake caliper connection hole, and the shock absorber support is provided with a spring shock absorber connection hole.

As a preference, the first upper lug, the second upper lug, the first lower lug, and the second lower lug are all provided with suspension guide rod branch chain connection holes; The line of intersection of two vertical planes defined by the axis of the connecting hole of the suspension branch chain and the line of intersection of the two vertical planes defined by the axis of the connection hole of the suspension branch chain of the lower lug are coincident or parallel.

As a preference, the first upper lug and the second upper lug, the first lower lug and the second lower lug are all about the vertical plane of the intersection line and the center line of the steering knuckle shaft. symmetry.

Preferably, the suspension guide rod branch chain connection hole is divided into an inner suspension guide rod branch chain connection hole and an outer suspension guide rod branch chain connection hole, the axes of which are the same; and the inner suspension guide rod branch chain connection hole The diameter of the hole is smaller than the diameter of the connecting hole of the outer suspension guide rod branch chain.

Preferably, on the premise of meeting the static strength and durability requirements, in order to reduce the weight of the steering knuckle body, the upper lug, the lower lug and the middle part of the shock absorber support in the steering knuckle body, All have a hollow structure.

Compared with the prior art, the utility model has the following advantages and outstanding effects: the vehicle using the steering knuckle and the linear guide suspension mechanism can realize that the wheel positioning parameters can always remain unchanged during the up and down process of the wheel, Thereby effectively reducing tire wear and tear, and can effectively improve the handling stability, ride comfort and riding comfort of the car; The same, so a sleeve can be put on one end of the pin connecting the suspension guide rod branch chain and the steering knuckle lug, so that the function of adjusting the connection gap and preload of the rotating pair can be achieved by adjusting the nut; the upper side of the steering knuckle body The lugs, the lower side lugs and the middle part of the shock absorber support can be provided with a hollow structure, which can reduce the weight of the steering knuckle under the premise of meeting the static strength and durability requirements; the steering knuckle has a simple structure, easy processing and It is characterized by light weight, and also has the advantages of strong designability and convenient assembly and adjustment.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a schematic diagram of the assembly structure of the suspension guide rod branch chain of the present invention.

Fig. 3 is a structural schematic diagram of Embodiment 2 of the utility model.

The labels in the attached drawings are: 1. Fixed shaft of hub unit, 2. First lug on the upper side, 3. Second lug on the upper side, 4. First lug on the lower side, 5. Second lug on the lower side , 6. Brake caliper connection hole, 7. Spring shock absorber connection hole, 8. Bolt, 9. Gasket, 10. Suspension guide rod branch chain, 11. Sleeve; 12. Nut, 13. Vibration damping Device support, 14. Upper lug, 15. Steering knuckle body, 16. Brake caliper support, 17. Lower lug, 18. Inner suspension guide rod branch chain connection hole, 19. Outer suspension guide Rod branch chain connection hole.

Detailed ways

The utility model will be described in detail below in conjunction with accompanying drawing: as shown in accompanying drawing 1, this steering knuckle is integrally cast, then machining. Including the steering knuckle main body 15 and the fixed shaft 1 of the hub unit, the steering knuckle main body 15 is provided with four lugs, which are respectively the upper first lug 2 and the upper second lug 3 constituting the upper side lug 14; The lower side first lug 4 of the lower side lug 17, the lower side second lug 5, and the steering knuckle main body 15 is also provided with a brake caliper support 16 and a shock absorber support 13; A brake caliper connection hole 6 is provided in the caliper support 16 , and a spring shock absorber connection hole 7 is provided in the shock absorber support 13 .

The upper first lug 2, the upper second lug 3, the lower first lug 4, and the lower second lug 5 are all provided with suspension guide rod branch chain connection holes; the upper lug The intersection line of the two vertical planes determined by the axis of the suspension branch chain connection hole of 14 and the intersection line of the two vertical planes determined by the axis of the suspension branch chain connection hole of the lower lug 17 coincide. or parallel.

The upper lug 14 and the two lugs in the lower lug 17 are all symmetrical about the vertical plane of the intersection line and the center line of the steering knuckle shaft.

The suspension guide rod branch chain connection hole is divided into an inner suspension guide rod branch chain connection hole 18 and an outer suspension guide rod branch chain connection hole 19, the axes of which are the same; and the inner suspension guide rod branch chain connection hole The diameter of 18 is less than the diameter of lateral suspension guide bar branch chain connecting hole 19. As shown in Figure 2, the diameters of the inner and outer connection holes of the suspension guide rod branch chain on the steering knuckle lug are different, so one end of the bolt 8 connecting the suspension guide rod branch chain 10 and the steering knuckle lug can be connected. Put the sleeve 11 on, and put a gasket 9 between the inner and outer connection holes of the suspension guide rod branch chain and the suspension guide rod branch chain 10, so as to adjust the connection gap and preload of the rotating pair by adjusting the nut 12.

In order to reduce the weight of the steering knuckle main body 15 under the premise of meeting the requirements of static strength and durability, the upper side lugs 14, the lower side lugs 17 and the shock absorber support 13 in the steering knuckle main body 15 The middle part is provided with a hollow structure.

As shown in Figure 3, it is the second embodiment of the steering knuckle for space multi-link linear guide suspension provided by the utility model. The steering knuckle is divided into five parts, including the shock absorber support 13, the upper side lug 14. Steering knuckle main body 15, brake caliper support 16; lower lug 17, each part is formed by wire cutting first, and then welded to form a whole.

Except for the above-mentioned embodiments, all technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims (5)

1. steering swivel that is used for spacing multi-connecting-rod linear guiding formula suspension; It is characterized in that: comprise steering swivel main body (15) and hub anchor shaft (1); Offering four journal stirrups on the steering swivel main body (15), is respectively upside first journal stirrup (2), upside second journal stirrup (3) that constitutes upside journal stirrup (14); Constitute downside first journal stirrup (4) of downside journal stirrup (17), downside second journal stirrup (5) also is provided with brake clamp bearing (16) and absorber seat (13) on the described steering swivel main body (15); Be provided with brake caliper connecting bore (6) in this brake clamp bearing (16), be provided with jounce bumper connecting bore (7) in this absorber seat (13).

2. the steering swivel that is used for spacing multi-connecting-rod linear guiding formula suspension according to claim 1; It is characterized in that: described upside first journal stirrup (2); Upside second journal stirrup (3), downside first journal stirrup (4), downside second journal stirrup (5) are equipped with suspension pilot bar side chain connecting bore; The intersection on determined two the vertical planes of suspension side chain connecting bore axis of upside journal stirrup (14), with the intersection on determined two the vertical planes of suspension side chain connecting bore axis of downside journal stirrup (17), both overlap or are parallel.

3. the steering swivel that is used for spacing multi-connecting-rod linear guiding formula suspension according to claim 2; It is characterized in that: described upside first journal stirrup (2) and upside second journal stirrup (3), downside first journal stirrup (4) and downside second journal stirrup (5), all about the vertical plane symmetry of said intersection and steering stub axle line of centers.

4. the steering swivel that is used for spacing multi-connecting-rod linear guiding formula suspension according to claim 2; It is characterized in that: described suspension pilot bar side chain connecting bore is divided into inboard suspension pilot bar side chain connecting bore (18) and outside suspension pilot bar side chain connecting bore (19), its axis heavy with; And the diameter of inboard suspension pilot bar side chain connecting bore (18) is less than the diameter of outside suspension pilot bar side chain connecting bore (19).

5. the steering swivel that is used for spacing multi-connecting-rod linear guiding formula suspension according to claim 1; It is characterized in that: the middle part of upside journal stirrup (14), downside journal stirrup (17) and absorber seat (13) in the described steering swivel main body (15) is equipped with hollow structure.

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