Hanging bracket of Balham car

Abstract

The utility model discloses a suspension bracket of a Balham car, and belongs to the technical field of Balham cars. The suspension bracket comprises a front stand column, an A-shaped upper A arm and an A-shaped lower A arm. The front stand column comprises a base, a mounting groove is fixedly connected to one side wall of the base, and a fisheye bearing I is mounted in the mounting groove; a connecting block is fixed to the base, a first threaded hole is formed in the connecting block, a second fisheye bearing is arranged in the first threaded hole, the rod end of the second fisheye bearing is in threaded connection with the first threaded hole, and a fastening nut is in threaded connection with the rod end of the second fisheye bearing; the top end of the upper arm A is connected with the ball head end of a fisheye bearing II, coaxial threaded holes II are formed in the two bottom ends of the upper arm A, fisheye bearings III are arranged in the threaded holes II, the rod ends of the fisheye bearings III are in threaded connection in the threaded holes II, and fastening nuts are also connected to the rod ends of the fisheye bearings III; a third threaded hole is formed in the top end of the lower A arm, and the rod end of the first fisheye bearing is in threaded connection in the third threaded hole. According to the scheme, the number of adjustable parameters of the barham suspension bracket is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bahas car, concretely relates to a bahas car suspension frame. BACKGROUND

[0002] China automobile engineering society bahas competition (BajaSAEChina, namely BSC) is a competition of off-road vehicle design, manufacture and detection participated by students of automobile and related majors in colleges and universities and vocational colleges. The racing car used in the competition is also called "bahas car". Bahas car suspension frame refers to a part of structure constituting a suspension system, which is mainly responsible for connecting wheels and vehicle body and absorbing impact caused by uneven road through shock absorbers and springs and the like to ensure stability and maneuverability of the vehicle. The suspension frame is the basic framework of the whole suspension system and is crucial to bear various dynamic loads.

[0003] Four-wheel alignment of the bahas car refers to adjusting angles and positions of four wheels of the vehicle relative to the vehicle body and each other to ensure optimal driving performance, maneuverability and tire life, but the suspension arm connecting point of the present bahas car suspension frame can only adjust the inclination angle of the tire to the ground and cannot change the inclination angle of the steering axis to the vertical line, so it is impossible to adjust other parameters (kingpin inclination, steering trapezium, etc.) according to the driving habit of the driver. Kingpin inclination refers to the inclination angle of the steering axis to the vertical line forward or backward in the front view. Adjusting the kingpin inclination on the bahas car can significantly improve the driving experience. Increasing the positive kingpin inclination (i.e. the steering axis is inclined forward) can enhance the stability of the vehicle when driving in a straight line, because such a setting will produce a self-centering effect to help the wheels automatically straighten. Although a larger positive kingpin inclination helps the stability of straight driving, too large an angle will make the steering heavy. Therefore, finding a balance point is crucial to ensure fast and accurate steering response. Optimizing the kingpin inclination setting can make the tires more evenly contact the ground during the whole steering process, thereby reducing the risk of uneven wear. SUMMARY

[0004] The utility model intends to provide a bahas car suspension frame to increase the number of adjustable parameters of the bahas car suspension frame.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a bahas car suspension frame, comprising a front upright, an "A"-shaped upper A arm and an "A"-shaped lower A arm.

[0006] The front upright column comprises a base, one side wall of the base is fixedly connected with a mounting groove, a fish-eye bearing one is mounted in the mounting groove, the base is fixedly connected with a connecting block, the connecting block is provided with a threaded hole one, a fish-eye bearing two is arranged in the threaded hole one, the rod end of the fish-eye bearing two is threadedly connected in the threaded hole one, and a fastening nut is threadedly connected on the rod end of the fish-eye bearing two;

[0007] The top end of the upper A arm is connected with the ball head end of the fish-eye bearing two, the two bottom ends of the upper A arm are provided with coaxial threaded holes two, fish-eye bearings three are arranged in the threaded holes two, the rod ends of the fish-eye bearings three are threadedly connected in the threaded holes two, and fastening nuts are also threadedly connected on the rod ends of the fish-eye bearings three;

[0008] The top end of the lower A arm is provided with a threaded hole three, and the rod end of the fish-eye bearing one is threadedly connected in the threaded hole three.

[0009] Further, the front upright column further comprises a knuckle arm, the base is provided with two mounting holes which are located on the same plane, the knuckle arm is fixed on the base through the cooperation of the two mounting holes by bolts, and a steering drag link is mounted on the knuckle arm and used for transmitting the steering force of a steering machine to the knuckle arm.

[0010] Further, an adjusting gasket is arranged between the knuckle arm and the base, and the thickness of the adjusting gasket is 0-2 cm.

[0011] Further, the base is fixedly connected with an axle center for mounting a wheel on the side opposite to the mounting groove, and the lower A arm and the axle center are located on the same horizontal plane.

[0012] Further, the lower A arm is fixedly connected with a mounting piece, the mounting piece comprises a bottom plate fixed on two arm rods of the lower A arm, the upper surface of the bottom plate is fixedly connected with two vertical matching plates, the matching plates are provided with connecting holes, and a shock absorber is fixedly mounted on the mounting piece through the connecting holes.

[0013] The front upright column has the following beneficial effects:

[0014] 1. When four-wheel alignment is performed in the scheme, not only the tire inclination angle can be adjusted, but also the length of the rod end of the fish-eye bearing two entering the threaded hole one can be adjusted by rotating the rod end of the fish-eye bearing two, the fish-eye bearing two is fastened by rotating the fastening nut after the length is adjusted to be appropriate, the front upright column inclination angle is adjusted by adjusting the length of the rod end of the fish-eye bearing two, and when the length of the rod end of the fish-eye bearing two is adjusted and an error exists, the tire is adjusted to be vertical by adjusting the length of the rod end of the fish-eye bearing three on the two bottom ends of the upper A arm.

[0015] 2. By adjusting the length of the rod end of the fish eye bearing three on the two bottom ends of the upper A-arm, the caster angle of the front column kingpin can be adjusted.

[0016] 3. By using adjusting shims of different thicknesses, the position of the knuckle arm can be raised, thus changing the angle of the Ackerman trapezium (the Ackerman trapezium design ensures that the inside and outside wheels have different steering angles when turning, thus reducing tire slip and wear and improving handling).

[0017] 4. The lower A-arm is arranged in a plane at the same height as the axis of the installed wheel, thus raising the spatial position of the lower A-arm, increasing the ground clearance of the lower A-arm, and enabling the buggy to pass over larger obstacles and have better passability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural diagram of a buggy suspension frame of the present application;

[0019] Figure 2 is Figure 1 an enlarged view of the middle A;

[0020] Figure 3 is Figure 1 a structural diagram of the front column;

[0021] Figure 4 is Figure 1 a structural diagram of the knuckle arm. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific embodiments:

[0023] The reference signs in the drawings of the specification include: axis 1, front column 2, connecting block 201, mounting groove 202, base 203, mounting hole 204, fish eye bearing two 3, upper A-arm 4, steering tie rod 5, fish eye bearing three 6, mounting piece 7, fish eye bearing one 8, lower A-arm 9, knuckle arm 10, adjusting shim 11.

[0024] The embodiments are basically as shown in the accompanying Figure 1 , the accompanying Figure 2 , the accompanying Figure 3 , and the accompanying Figure 4 :

[0025] A buggy suspension frame, comprising a front column 2, an upper A-arm 4 in the shape of "A", and a lower A-arm 9 in the shape of "A";

[0026] The front upright column 2 comprises a base 203 and a knuckle arm 10, one side wall of the base 203 is fixedly connected with a mounting groove 202, the fish-eye bearing one 8 is mounted in the mounting groove 202; the base 203 is fixedly connected with a connecting block 201, the connecting block 201 is provided with a threaded hole one, the fish-eye bearing two 3 is arranged in the threaded hole one, the rod end of the fish-eye bearing two 3 is threadedly connected in the threaded hole one, and the rod end of the fish-eye bearing two 3 is threadedly connected with a fastening nut; the base 203 is provided with two mounting holes 204, the two mounting holes 204 are located on the same plane, the knuckle arm 10 is fixed on the base 203 through the cooperation of the two mounting holes 204 and bolts, the knuckle arm 10 is mounted with a steering drag link 5, the steering drag link 5 is used for transmitting the steering force of a steering engine to the knuckle arm 10, the knuckle arm 10 is provided with an adjusting gasket 11 between the mounting surface of the base 203, and the thickness of the adjusting gasket 11 is 0-2 cm. The side of the base 203 opposite to the mounting groove 202 is fixedly connected with an axle center 1 for mounting a wheel, and the lower A arm 9 is located on the same horizontal plane with the axle center 1.

[0027] The top end of the upper A arm 4 is connected with the ball head end of the fish-eye bearing two 3, and the two bottom ends of the upper A arm 4 are provided with coaxial threaded holes two, the fish-eye bearing three 6 is arranged in the threaded hole two, the rod end of the fish-eye bearing three 6 is threadedly connected in the threaded hole two, and the rod end of the fish-eye bearing three 6 is also threadedly connected with a fastening nut;

[0028] The top end of the lower A arm 9 is provided with a threaded hole three, the rod end of the fish-eye bearing one 8 is threadedly connected in the threaded hole three, and the lower A arm 9 is fixedly connected with a mounting piece 7, the mounting piece 7 comprises a bottom plate fixed on two arm rods of the lower A arm 9, two vertical matching plates are fixedly connected on the upper surface of the bottom plate, the matching plates are provided with connecting holes, and the shock absorber is fixedly mounted on the mounting piece 7 through the connecting holes.

[0029] The specific implementation process is as follows:

[0030] In use, the wheel is mounted on the axle center 1, and the two bottom ends of the upper A arm 4 and the lower A arm 9 are connected with the frame, if it is needed to increase the kingpin inclination angle, the rod end of the fish-eye bearing two 3 is rotated to adjust the length of the rod end of the fish-eye bearing two 3 entering into the threaded hole one, the rod end of the fish-eye bearing two 3 is turned out of the threaded hole one, and the length of the rod end of the fish-eye bearing two 3 outside the threaded hole one is increased, so that the kingpin inclination angle is increased. Similarly, the rod end of the fish-eye bearing two 3 is turned into the threaded hole one, and the length of the rod end of the fish-eye bearing two 3 outside the threaded hole one is shortened, so that the kingpin inclination angle is reduced. After the length is adjusted appropriately, the fish-eye bearing two 3 is fastened by rotating the fastening nut, so that the inclination angle of the front upright column 2 is adjusted by adjusting the length of the rod end of the fish-eye bearing two 3. Meanwhile, when the length adjustment of the rod end of the fish-eye bearing two 3 has an error and causes the tire to be skewed, the length of the rod end of the fish-eye bearing three 6 in the threaded hole two is adjusted to compensate, so that the tire is adjusted to be vertical.

[0031] When the angle of the steering trapezium needs to be increased, according to the adjustment requirement, the adjusting gasket 11 with a proper thickness is selected, placed between the base 203 and the steering knuckle arm 10, and fixed by a bolt, so that the height of the steering knuckle arm 10 is increased, and the angle of the steering trapezium is increased. Conversely, when the angle of the steering trapezium needs to be decreased, the adjusting gasket 11 is relatively thin or completely removed, the height of the steering knuckle arm 10 is decreased, and the angle of the steering trapezium is decreased.

Claims

1. A Bahai vehicle suspension hanger characterized by: The front upright column, the upper A-arm and the lower A-arm are in "A" shape. The front upright column comprises a base, one side wall of the base is fixedly connected with a mounting groove, the mounting groove is mounted with a fish-eye bearing one, the base is fixedly connected with a connecting block, the connecting block is provided with a threaded hole one, the threaded hole one is provided with a fish-eye bearing two, the rod end of the fish-eye bearing two is threadedly connected in the threaded hole one, and the rod end of the fish-eye bearing two is threadedly connected with a fastening nut. The top end of the upper A-arm is connected with the ball head end of the fish-eye bearing two, the two bottom ends of the upper A-arm are provided with coaxial threaded holes two, the threaded holes two are provided with fish-eye bearings three, the rod ends of the fish-eye bearings three are threadedly connected in the threaded holes two, and the rod ends of the fish-eye bearings three are also threadedly connected with fastening nuts. The top end of the lower A-arm is provided with a threaded hole three, and the rod end of the fish-eye bearing one is threadedly connected in the threaded hole three.

2. A Bahai vehicle suspension hanger according to claim 1 wherein: The front upright column further comprises a knuckle arm, the base is provided with two mounting holes, the two mounting holes are located on the same plane, the knuckle arm is fixed on the base through bolts matched with the two mounting holes, the knuckle arm is mounted with a steering drag link, and the steering drag link is used for transmitting the steering force of a steering machine to the knuckle arm.

3. A Bahai vehicle suspension hanger according to claim 2, characterised in that: An adjusting gasket is arranged between the knuckle arm and the base, and the thickness of the adjusting gasket is 0-2 cm.

4. A Bahai vehicle suspension hanger according to claim 3 wherein: The base is fixedly connected with an axle center for mounting a wheel on the side opposite to the mounting groove, and the lower A-arm and the axle center are located on the same horizontal plane.

5. A Bahai vehicle suspension hanger according to claim 4 wherein: The lower A-arm is fixedly connected with a mounting piece, the mounting piece comprises a bottom plate fixed on two arm rods of the lower A-arm, the upper surface of the bottom plate is fixedly connected with two vertical matching plates, the matching plates are provided with connecting holes, and a shock absorber is fixedly mounted on the mounting piece through the connecting holes.

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