CN217623023U - Suspension and vehicle - Google Patents

Abstract

The utility model discloses a suspension and vehicle, the suspension includes: a shock absorber; a steering tie rod; the upper end of the steering knuckle is connected to the shock absorber, the side end of the steering knuckle is connected to the steering pull rod, the lower end of the steering knuckle is provided with a first mounting hole and a second mounting hole, and the second mounting hole is positioned at the rear side of the first mounting hole and is arranged close to the upper side; one end of the front control arm is mounted in the first mounting hole, and the other end of the front control arm is connected with the auxiliary frame and is obliquely arranged towards the vehicle head; and one end of the rear control arm is mounted in the second mounting hole, and the other end of the rear control arm is connected with the auxiliary frame and transversely arranged towards the width direction of the frame. The mounting point of preceding control arm is less than the mounting point of back control arm to the one end that preceding control arm and connected of frame set up towards locomotive direction slope, and reducible occupation space provides sufficient arrangement space for power battery, improves the continuation of the journey mileage of whole car.

Description

Suspension and vehicle

Technical Field

The utility model belongs to the technical field of automotive suspension system technique and specifically relates to a suspension and vehicle are related to.

Background

The suspension of the automobile is an assembly for connecting all transmission connecting devices between the automobile body and wheels, mainly has the function of transmitting all forces and moments between the wheels and the automobile body, and comprises a front suspension and a rear suspension. The steering knuckle is a main guide structural part in a suspension, transmits and bears the load of the front part of an automobile, supports and drives a front wheel to rotate around a main pin so as to steer the automobile, enables the automobile to stably run and sensitively transmit the running direction, is one of key parts for determining the performance of the whole automobile, the inner side of the steering knuckle is connected with a front auxiliary frame assembly through a shock absorber and a control arm, and the outer side of the steering knuckle is connected with the wheel through a hub bearing, a brake disc and a brake caliper.

In the correlation technique, the Macpherson suspension of wide use, the control arm is triangle arm structure usually, and not only whole car unsprung weight is heavy, still can occupy great space, leads to power battery package to arrange the space not enough, reduces whole car continuation of the journey mileage to the control arm is articulated with the monosphere of knuckle, can lead to knuckle intensity and rigidity not enough, and then influences whole car driving safety nature and controls the ride comfort.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a suspension, control arm include preceding control arm and back control arm, and the mounting point between preceding control arm and the knuckle is less than the mounting point between back control arm and the knuckle to preceding control arm is towards the plantago slope, can effectively increase battery package arrangement space.

The utility model also provides a vehicle.

According to the utility model discloses suspension of the embodiment of first aspect, the suspension includes: a shock absorber; a steering tie rod; the upper end of the steering knuckle is connected to the shock absorber, the side end of the steering knuckle is connected to the steering pull rod, the lower end of the steering knuckle is provided with a first mounting hole and a second mounting hole, and the second mounting hole is positioned at the rear side of the first mounting hole and is arranged close to the upper side; one end of the front control arm is mounted in the first mounting hole, and the other end of the front control arm is connected with the auxiliary frame and is obliquely arranged towards the vehicle head; and one end of the rear control arm is mounted in the second mounting hole, and the other end of the rear control arm is connected with the auxiliary frame and transversely arranged towards the width direction of the frame.

According to the utility model discloses a suspension, be front control arm and back control arm with the control arm design, wherein, the position of the first mounting hole that the front control arm was installed on the knuckle is higher than the position of the second mounting hole that the back control arm was installed on the knuckle, and front control arm sets up towards locomotive direction slope with connected to the frame's one end, the width direction of frame is transversely set up along with connected to the frame's one end to back control arm, because new energy battery package generally installs at the front axle, between rear axle and the both sides longeron, the arrangement structure of front control arm and back control arm can effectively reduce occupation space, provide sufficient arrangement space for the battery package, effectively improve the continuation of the journey mileage and the fuel economy of whole car, front control arm and back control arm can effectively increase the side direction support area of knuckle simultaneously, with the intensity and the rigidity that promote the knuckle, effectively improve the driving safety and the manipulation ride comfort of whole car. In addition, the front control arm, the rear control arm and the steering knuckle are arranged in the mounting positions to be vertically staggered and longitudinally staggered, so that parameters related to steering, such as a kingpin inclination angle, a kingpin caster angle, a kingpin offset and the like, form a nonlinear relation, the steering sensitivity and the linear driving stability are improved, and the better stability performance is realized.

According to some embodiments of the invention, the front control arm forms an upwardly convex arch in the height direction of the frame; and/or the rear control arm forms a transversely horizontal in-line structure in the width direction of the frame.

According to the utility model discloses a some embodiments, the knuckle is provided with the third mounting hole, the third mounting hole is located the wheel center front side of knuckle, steering linkage's one end with the third mounting hole is articulated.

According to some embodiments of the invention, the center line of the damper in its axial direction is located at the wheel center front side of the knuckle.

According to the utility model discloses a some embodiments, the upper end of knuckle is provided with the mounting groove, the one end of bumper shock absorber peg graft in the mounting groove.

According to some embodiments of the utility model, be provided with the opening on the lateral wall of mounting groove, the open-ended both ends be provided with fastener complex mounting hole.

According to the utility model discloses a some embodiments, preceding control arm with first mounting hole is connected and is formed with first spherical hinge point, back control arm with second mounting hole is connected and is formed with second spherical hinge point, first spherical hinge point with second spherical hinge point is h at the ascending interval of direction of height, h satisfies the relational expression: h is more than or equal to 15mm and less than or equal to 20mm.

According to some embodiments of the present invention, an included angle formed between the axis of the first mounting hole and the axis of the second mounting hole is α, where α satisfies the following relation: alpha is more than or equal to 0 degree and less than or equal to 5 degrees.

According to some embodiments of the utility model, be formed with the indent structure around the wheel center of knuckle for with wheel connection, first ball pivot point and second ball pivot point set up in the inboard of wheel medial surface, just preceding control arm passes at the ascending central line of axial direction first ball pivot point formed the extension line with back control arm passes at the ascending central line of axial direction the nodical point that is located between the extension line that second ball pivot point formed the outside of wheel lateral surface.

According to the utility model discloses vehicle of the embodiment of second aspect includes: the suspension; and the wheel shaft of the wheel penetrates through the wheel center of the steering knuckle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a first perspective of a suspension according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a second perspective of a suspension according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third perspective of a suspension according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a knuckle according to an embodiment of the present invention;

fig. 5 is a partial block diagram of a suspension according to an embodiment of the present invention;

fig. 6 is a schematic view of the fitting of a knuckle and a wheel according to an embodiment of the present invention.

Reference numerals:

100. a suspension;

10. a shock absorber;

20. a steering tie rod;

30. a knuckle; 31. a first mounting hole; 32. a second mounting hole; 33. a third mounting hole; 34. a wheel center; 35. Mounting grooves; 36. an opening; 37. mounting holes;

40. a front control arm; 41. a first ball pivot point;

50. a rear control arm; 51. a second spherical hinge point;

200. an auxiliary frame; 300. a wheel; 400. and (5) braking the calipers.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A suspension 100 according to an embodiment of the present invention is described below with reference to fig. 1-6.

As shown in fig. 1 to 5, the suspension 100 includes: shock absorber 10, steering rod 20, knuckle 30, front control arm 40, and rear control arm 50.

Wherein, the upper end of the knuckle 30 is connected to the shock absorber 10, the side end of the knuckle 30 is connected to the tie rod 20, the lower end of the knuckle 30 is provided with a first mounting hole 31 and a second mounting hole 32, and the second mounting hole 32 is located at the rear side of the first mounting hole 31 and is arranged close to the upper side. So set up, as shown in fig. 1, the one end of bumper shock absorber 10 is connected in the upper end of knuckle 30, the one end of tie rod 20 is connected in the side of knuckle 30, and the high position of first mounting hole 31 is less than the high position of second mounting hole 32, the design of highly staggering not only can provide certain arrangement space for the battery package, but also can optimize the kingpin caster angle relevant with the kingpin axis, the kingpin inclination, performance parameters such as kingpin offset, be favorable to promoting steering sensitivity and straight line stability of traveling, realize better behaviour and stability ability.

And one end of the front control arm 40 is mounted to the first mounting hole 31, the other end of the front control arm 40 is connected to the subframe 200 and is disposed obliquely toward the vehicle head direction, one end of the rear control arm 50 is mounted to the second mounting hole 32, and the other end of the rear control arm 50 is connected to the subframe 200 and is disposed laterally in the width direction of the subframe 200. So set up, preceding control arm 40 is installed in first mounting hole 31, back control arm 50 is installed in second mounting hole 32, and preceding control arm 40 sets up towards locomotive direction slope, back control arm 50 transversely sets up towards width direction, such layout structure occupation space is little, the arrangement space that can greatly increased battery package, compare in the design that traditional preceding control arm 40 transversely set up and back control arm 50 slopes to set up backward, can make suspension 100's overall structure comparatively compact, enough arrangement space has been reserved for the bigger battery package of design volume, thereby effectively improve the continuation of the journey mileage of whole car. Of course, it is possible to provide not only sufficient space for the arrangement of the battery pack but also arrangement space for other components such as the engine.

Furthermore, the front control arm 40 and the knuckle 30 may be connected by a ball joint, and the rear control arm 50 and the knuckle 30 may also be connected by a ball joint, although the connection of the front control arm 40 and the rear control arm 50 to the knuckle 30 includes but is not limited to the above connection.

In the whole vehicle three-dimensional coordinate system of the vehicle, the X-axis direction is the length direction of the vehicle, the Y-axis direction is the width direction of the vehicle, the Z-axis direction is the height direction of the vehicle, the direction from the tail to the head of the vehicle is the positive direction of the X-axis direction of the whole vehicle coordinate system, the direction from the auxiliary driving position to the driving position of the vehicle is the positive direction of the Y-axis direction of the whole vehicle coordinate system, and the direction from the chassis to the roof of the vehicle is the positive direction of the Z-axis direction of the whole vehicle coordinate system. The lateral direction of the vehicle refers to the width direction of the vehicle, and the longitudinal direction of the vehicle refers to the longitudinal direction or the front-rear direction of the vehicle.

Therefore, the control arm is designed into the front control arm 40 and the rear control arm 50 which are independently separated, the position of the first mounting hole 31 of the front control arm 40, which is mounted on the steering knuckle 30, is lower than the position of the second mounting hole 32 of the rear control arm 50, which is mounted on the steering knuckle 30, and the end of the front control arm 40, which is connected with the subframe 200, is obliquely arranged towards the direction of the vehicle head, the end of the rear control arm 50, which is connected with the subframe 200, is transversely arranged along the width direction of the subframe 200, because a battery pack is generally mounted between a front axle, a rear axle and two side longitudinal beams, the arrangement structure of the front control arm 40 and the rear control arm 50 can effectively reduce the occupied space, provide sufficient arrangement space for the battery pack, effectively improve the endurance and the fuel economy of the whole vehicle, and simultaneously, the lateral support area of the steering knuckle 30 can be effectively increased by the front control arm 40 and the rear control arm 50, so as to improve the strength and the rigidity of the steering knuckle 30, and effectively improve the driving safety and the driving smoothness of the whole vehicle. In addition, the front control arm 40, the rear control arm 50 and the steering knuckle 30 are arranged in the mounting positions to be vertically staggered and horizontally staggered, so that steering related parameters such as a kingpin inclination angle, a kingpin caster angle, a kingpin offset and the like form a nonlinear relation, the steering sensitivity and the straight-line driving stability are improved, and better stability in operation is realized.

As shown in fig. 3, the front control arm 40 forms an upwardly convex arch structure in the height direction of the subframe 200, or the rear control arm 50 forms a horizontally horizontal in-line structure in the width direction of the subframe 200, or the front control arm 40 forms an upwardly convex arch structure in the height direction of the subframe 200 and the rear control arm 50 forms a horizontally horizontal in-line structure in the width direction of the subframe 200. So set up, set up preceding control arm 40 to the bellied domes that makes progress, back control arm 50 sets up to the in-line structure, can make and form great span and dodge the space between the hookup location of preceding control arm 40 and sub vehicle frame 200 and the hookup location of back control arm 50 and sub vehicle frame 200, can further provide sufficient space of arranging and provide the space for the installation and the arranging of engine for the battery package, improve whole car continuation of the journey mileage, can also improve the height on preceding control arm 40 and ground simultaneously, prevent that the vehicle from damaging preceding control arm 40 when the ground through unevenness. The front control arm 40 and the rear control arm 50 can be made of forged aluminum materials, so that structural strength and rigidity can be guaranteed, the weight of the whole vehicle can be reduced, and the light-weight design is met. Of course, the material of the forward and rearward control arms 40, 50 includes, but is not limited to, the above-described wrought aluminum materials.

As shown in fig. 4 and 5, the knuckle 30 is provided with a third mounting hole 33, the third mounting hole 33 is located in front of a wheel center 34 of the knuckle 30, and one end of the tie rod 20 is hinged to the third mounting hole 33. So set up, be provided with third mounting hole 33 in the wheel center 34 front side of knuckle 30, the one end of tie rod 20 is installed in third mounting hole 33, and third mounting hole 33 carries out the bulb with tie rod 20 and articulates, on the one hand, can make tie rod 20 keep away from the battery package, for the battery package provides more sufficient arrangement space, increase battery capacity, improve whole car continuation of the journey mileage, on the other hand, arrange tie rod 20 in wheel center 34 front side, can promote the steering precision, make things convenient for the driver to turn to the operation simultaneously, the sense of use of driver has been improved. And, the tie rod 20 is set up in the front of the wheel center 34, correspondingly, the brake caliper 400 is set up in the rear of the wheel center 34, compare with the existing steering structure, exchange the mounting position of the brake caliper 400 and mounting position of the tie rod 20, have realized the leading whole of the steering gear is arranged, improve the abundant space of arrangement for arranging the battery package. Further, the center 34 of the knuckle 30 is the center 34 of the wheel 300.

Also, the center line of the shock absorber 10 in its axial direction is located on the front side of the wheel center 34 of the knuckle 30. So set up, can improve the return positive efficiency that the vehicle turned to when going at a high speed, effectively improve driving safety nature and operating stability. Referring to fig. 4, the center line of the damper 10 in the axial direction is a.

And, the upper end of the knuckle 30 is provided with an installation groove 35, and one end of the shock absorber 10 is inserted into the installation groove 35. By the arrangement, the shock absorber 10 is connected with the steering knuckle 30 in a plug-in manner, so that the camber angle of the wheel 300 can be better kept unchanged, the vehicle can be kept running linearly, and the problem of linear deviation of the vehicle can be effectively reduced.

Wherein, the side wall of the mounting groove 35 is provided with an opening 36, and two ends of the opening 36 are provided with mounting holes 37 matched with the fasteners. With this arrangement, after one end of the shock absorber 10 is inserted into the mounting groove 35, the fastening member sequentially passes through the mounting holes 37 at the two ends of the opening 36, so that the shock absorber 10 and the knuckle 30 can be securely fastened to prevent the shock absorber 10 from being separated from the mounting groove 35.

In addition, the front control arm 40 is connected with the first mounting hole 31 to form a first spherical hinge point 41, the rear control arm 50 is connected with the second mounting hole 32 to form a second spherical hinge point 51, the distance between the first spherical hinge point 41 and the second spherical hinge point 51 in the height direction is h, and h satisfies the relation: h is more than or equal to 15mm and less than or equal to 20mm. With the arrangement, the front control arm 40 and the rear control arm 50 are both hinged with the steering knuckle 30 by the ball joints, so that the front control arm 40, the rear control arm 50 and the steering knuckle 30 can realize multidirectional rotation automation, namely universal rotation. And the design of the height difference between the first spherical hinge point 41 and the second spherical hinge point 51, so that the steering kingpin axis formed by the intersection point of the extension line of the front control arm 40 along the first spherical hinge point 41 and the extension line of the rear control arm 50 along the second spherical hinge point 51 and the connecting line between the elastic central points of the shock absorbers 10 can further optimize performance parameters related to the steering kingpin axis, such as kingpin caster angle, kingpin inclination angle, kingpin offset and the like, effectively reduce the sensitivity to longitudinal force, thereby improving steering sensitivity and straight-line driving stability and realizing better stability performance.

An included angle formed between the axis of the first mounting hole 31 and the axis of the second mounting hole 32 is α, and α satisfies the relation: alpha is more than or equal to 0 degree and less than or equal to 5 degrees. So set up, on the one hand, can make preceding control arm 40 and back control arm 50 relatively knuckle 30's up-and-down motion comparatively nimble to mutual noninterference effectively improves and turns to the performance, on the other hand, in the king pin axis that turns to that constitutes with bumper shock absorber 10, can shorten the shortest distance of wheel center 34 to king pin axis to a certain extent, effectively shortens king pin disturbance arm length promptly, thereby effectively reduces the problem of vehicle off tracking with higher speed. Referring to fig. 4, the center line of the first spherical hinge point 41 in the axial direction is b, and the center line of the second spherical hinge point 51 in the axial direction is c.

And, a concave structure is formed around the wheel center 34 of the knuckle 30 for connection with the wheel 300, the first and second ball-and- socket joints 41 and 51 are provided on the inner side of the wheel 300, and an intersection point between an extension line of a center line of the front control arm 40 in the axial direction passing through the first ball-and-socket joint 41 and an extension line of a center line of the rear control arm 50 in the axial direction passing through the second ball-and-socket joint 51 is located on the outer side of the wheel 300. It will be appreciated that, referring to fig. 6, the center line of the front control arm 40 in the axial direction is elongated along the first ball joint point 41, i.e., forming line d, and the center line of the rear control arm 50 in the axial direction is elongated along the second ball joint point 51, i.e., forming line e, the intersection between line d and line e being a, which is located outside the outer side surface of the wheel 300. So set up, set up the elasticity central point of bumper shock absorber 10 into B point, the line between A point and the B point has constituted king pin axis f, can further realize shortening the distance of king pin disturbance arm length like this to can reduce the problem of steering wheel shake, the vehicle off tracking with higher speed on smooth-going road surface better.

According to the utility model discloses vehicle of the embodiment of second aspect includes: the suspension 100 and the wheel 300, the axle of the wheel 300 is inserted through the center 34 of the knuckle 30. The axial center of the wheel shaft is the wheel center 34 of the knuckle 30.

Therefore, the control arm is designed to be the front control arm 40 and the rear control arm 50 which are independently separated, the position of the first mounting hole 31 of the front control arm 40 mounted on the knuckle 30 is lower than the position of the second mounting hole 32 of the rear control arm 50 mounted on the knuckle 30, and the end of the front control arm 40 connected with the subframe 200 is inclined towards the direction of the vehicle head, the end of the rear control arm 50 connected with the vehicle frame 200 is transversely arranged along the width direction of the vehicle frame 200, because the new energy battery pack is generally mounted between the front axle, the rear axle and the side longitudinal beams on two sides, the arrangement structure of the front control arm 40 and the rear control arm 50 can effectively reduce the occupied space, provide sufficient arrangement space for the new energy battery pack, effectively improve the endurance and the fuel economy of the whole vehicle, and simultaneously the front control arm 40 and the rear control arm 50 can effectively increase the lateral support area of the knuckle 30 to improve the strength and the rigidity of the knuckle 30, and effectively improve the driving safety and the handling smoothness of the whole vehicle. In addition, the front control arm 40, the rear control arm 50 and the steering knuckle 30 are arranged in the mounting positions to be vertically staggered and horizontally staggered, so that steering related parameters such as a kingpin inclination angle, a kingpin caster angle, a kingpin offset and the like form a nonlinear relation, the steering sensitivity and the straight-line driving stability are improved, and better stability in operation is realized.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A suspension, comprising:

a shock absorber;

a steering tie rod;

the upper end of the steering knuckle is connected to the shock absorber, the side end of the steering knuckle is connected to the steering pull rod, the lower end of the steering knuckle is provided with a first mounting hole and a second mounting hole, and the second mounting hole is positioned at the rear side of the first mounting hole and is arranged close to the upper side;

one end of the front control arm is mounted in the first mounting hole, and the other end of the front control arm is connected with the auxiliary frame and is obliquely arranged towards the vehicle head;

and one end of the rear control arm is mounted in the second mounting hole, and the other end of the rear control arm is connected with the auxiliary frame and transversely arranged towards the width direction of the frame.

2. The suspension of claim 1, wherein the front control arm forms an upwardly convex arch in the height direction of the frame; and/or the presence of a gas in the gas,

the rear control arm forms a horizontal in-line structure in the width direction of the frame.

3. The suspension according to claim 1, wherein the knuckle is provided with a third mounting hole located on a front side of a wheel center of the knuckle, and one end of the steering rod is hinged to the third mounting hole.

4. The suspension according to claim 1, wherein a center line of the shock absorber in an axial direction thereof is located on a wheel center front side of the knuckle.

5. The suspension according to claim 1, wherein the upper end of the knuckle is provided with a mounting groove, and one end of the shock absorber is inserted into the mounting groove.

6. The suspension according to claim 5, wherein the side wall of the mounting groove is provided with an opening, and both ends of the opening are provided with mounting holes matched with fasteners.

7. The suspension according to claim 1, wherein the front control arm is connected with the first mounting hole to form a first spherical hinge point, the rear control arm is connected with the second mounting hole to form a second spherical hinge point, the first spherical hinge point and the second spherical hinge point are spaced apart by h in the height direction, and the h satisfies the relation: h is more than or equal to 15mm and less than or equal to 20mm.

8. The suspension of claim 7, wherein the axis of the first mounting hole and the axis of the second mounting hole form an included angle α, and the α satisfies the relationship: alpha is more than or equal to 0 degree and less than or equal to 5 degrees.

9. The suspension according to claim 7, wherein a concave structure is formed around the wheel center of the knuckle for connection with a wheel, the first and second ball joints are disposed inside the inner side surface of the wheel, and an intersection point between an extension line of a center line of the front control arm in the axial direction passing through the first ball joint and an extension line of a center line of the rear control arm in the axial direction passing through the second ball joint is located outside the outer side surface of the wheel.

10. A vehicle, characterized by comprising:

the suspension of any one of claims 1-9;

and the wheel shaft of the wheel penetrates through the wheel center of the steering knuckle.

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