Suspension unit and suspension system

Abstract

Provided are a suspension unit and a suspension system, comprising: a lightweight swing arm, which is internally hollow, has a through hole at a first end, and has a mechanical bearing arranged in the through hole and connected to a longitudinal beam through a mounting seat; a wheel hub unit connected to a second end of the lightweight swing arm and provided with a brake; an oil-gas spring arranged vertically and having one end connected to the second end of the lightweight swing arm and the other end connected to a wheel box top plate through a mounting support; a gas chamber support connected to a position of the lightweight swing arm close to the first end and extending vertically upward; a gas chamber having a first end connected to a top of the gas chamber support; and a transmission unit connected between the gas chamber and the brake. The lightweight swing arm, the vertically arranged oil-gas spring, and the gas chamber support are matched to improve the structural stability; compared with a gas bag structure, the overall structure is simplified, the arrangement space is reduced, and installation and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of vehicle suspension, and more particularly to a suspension unit and suspension system. Background Technology

[0002] Modern logistics places increasingly higher demands on the cargo space and / or load capacity of trucks or trailers. However, the existing truck suspension units result in a high chassis, making it difficult to utilize the space below the wheel center, thus requiring further improvement in the truck's loading space. To address this, Chinese Patent ZL201710181651.9 discloses a vehicle suspension device and a vehicle including the same. The vehicle suspension device includes a suspension spring structure disposed above the corresponding wheel, with one end of the suspension spring structure connected to the vehicle body, and the length between the two ends of the suspension spring structure changing under set lifting conditions; for example... Figure 8 As shown, a suspension bracket includes a first position, a second position, and a third position. The first position of the suspension bracket is connected to the other end of the suspension spring structure, the second position of the suspension bracket is connected to the corresponding wheel, and the suspension bracket is rotatable relative to the wheel; and a main bearing is connected between the third position of the suspension bracket and the vehicle body, and the suspension bracket is rotatable relative to the vehicle body.

[0003] However, the suspension bracket has a relatively complex structure, occupies a large space, and its stability needs to be further improved.

[0004] Therefore, it is necessary to study a suspension unit and suspension system to solve one or more of the above-mentioned technical problems. Utility Model Content

[0005] To solve at least one of the above-mentioned technical problems, according to one aspect of the present invention, a suspension unit is provided, characterized in that it comprises:

[0006] The lightweight swing arm has a hollow internal structure with a through hole at the first end. A mechanical bearing is arranged inside the through hole and is connected to the longitudinal beam through a mounting base.

[0007] The hub unit is connected to the second end of the lightweight swing arm and has a brake.

[0008] The gas spring is arranged vertically, with one end connected to the second end of the lightweight swing arm and the other end connected to the top plate of the wheel box via a mounting bracket;

[0009] The air chamber support is connected to the lightweight swing arm near the first end and extends vertically upward;

[0010] The air chamber, with its first end connected to the top of the air chamber support; and

[0011] The transmission unit connects the air chamber and the brake.

[0012] The hub unit and the mounting base are respectively located on opposite sides of the lightweight swing arm, which is provided with weight reduction holes.

[0013] According to another aspect of the present invention, the lightweight swing arm is arranged horizontally.

[0014] According to another aspect of the present invention, the number of weight-reducing holes is greater than one, and the weight-reducing holes penetrate the front and rear sides of the lightweight swing arm.

[0015] According to another aspect of the present invention, the air chamber support and the oil-gas spring are arranged in parallel.

[0016] According to another aspect of the present invention, the air chamber is located between the air chamber support and the oil-gas spring, and the second end is suspended.

[0017] According to another aspect of the present invention, the transmission unit includes: a connecting arm, one end of which is connected to the air chamber and the other end of which is connected to an adjusting rod; and an adjusting arm, one end of which is connected to the adjusting rod and the other end of which is connected to the brake or brake lever.

[0018] According to another aspect of the present invention, the connecting arm can rotate around the pin shaft provided on the air chamber support under the drive of the air chamber, so as to drive the adjusting rod, the adjusting arm and the brake to move.

[0019] According to another aspect of the present invention, a suspension system is also provided, characterized in that it includes:

[0020] The first wheel box is vertically arranged on the first side of the vehicle body;

[0021] The second wheel box is vertically arranged on the second side of the vehicle body; and

[0022] Multiple crossbeams connect the two longitudinal beams of the frame, and wheels are arranged between two adjacent crossbeams;

[0023] The first wheel box and the second wheel box contain the aforementioned suspension units, which are configured corresponding to each wheel. The space enclosed by the first wheel box, the second wheel box, and multiple crossbeams is used to arrange the carriage.

[0024] According to another aspect of the present invention, the height of the plurality of crossbeams from the ground is less than 1 / 2 of the wheel radius.

[0025] According to another aspect of the present invention, no connecting shaft running through the left and right sides is provided between the wheels.

[0026] This utility model can achieve one or more of the following technical effects:

[0027] 1. The use of lightweight swing arms and vertically arranged oil-gas springs and air chamber supports improves structural stability;

[0028] 2. Compared to airbag structures, it simplifies the overall structure, reduces the required installation space, and facilitates installation and maintenance. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 This is a schematic diagram of a suspension system (corresponding to two sets of wheels) according to a preferred embodiment of the present invention.

[0031] Figure 2-3 This is a schematic diagram of a suspension unit (installation state) according to a preferred embodiment of the present invention.

[0032] Figure 4-5 This is a schematic diagram of the suspension unit from the front and rear views according to a preferred embodiment of the present invention.

[0033] Figure 6-7 These are perspective views of a suspension unit according to a preferred embodiment of the present invention from two different angles.

[0034] Figure 8 This is a schematic diagram of the suspension unit of the existing technology ZL201710181651.9. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. These specific embodiments are intended to illustrate the present invention in detail, but should not be construed as limiting the present invention. Various modifications and variations can be made without departing from the spirit and scope of the present invention, and all of these should be included within the protection scope of the present invention.

[0036] Example 1

[0037] According to a preferred embodiment of this utility model, see [link to relevant documentation]. Figure 1-7 A suspension unit is provided, characterized in that it includes:

[0038] The lightweight swing arm 109 has a hollow internal structure and a through hole at the first end. A mechanical bearing 106 is arranged in the through hole and is connected to the longitudinal beam through a mounting base 105.

[0039] The hub unit 108 is connected to the second end of the lightweight swing arm and has a brake.

[0040] The gas spring 110 is vertically arranged with one end connected to the second end of the lightweight swing arm and the other end connected to the top plate of the wheel box via the mounting bracket 111.

[0041] The air chamber support 104 is connected to the lightweight swing arm near the first end and extends vertically upward;

[0042] Air chamber 101, the first end of which is connected to the top of the air chamber support; and

[0043] The transmission unit connects the air chamber and the brake.

[0044] The hub unit and the mounting base are respectively located on opposite sides of the lightweight swing arm, which is provided with weight reduction holes.

[0045] According to another preferred embodiment of this utility model, the lightweight swing arm is arranged horizontally. It is understood that the lightweight swing arm is elongated and has a hollow internal structure.

[0046] According to another preferred embodiment of the present invention, the number of weight-reducing holes is greater than one, and the weight-reducing holes penetrate the front and rear sides of the lightweight swing arm.

[0047] According to another preferred embodiment of the present invention, the air chamber support and the oil-gas spring are arranged in parallel.

[0048] According to another preferred embodiment of the present invention, the air chamber is located between the air chamber support and the oil-gas spring, and the second end is suspended.

[0049] According to another preferred embodiment of the present invention, the transmission unit includes: a connecting arm 103, one end of which is connected to the air chamber and the other end of which is connected to an adjusting rod 102; and an adjusting arm 107, one end of which is connected to the adjusting rod and the other end of which is connected to the brake or brake lever.

[0050] According to another preferred embodiment of the present invention, the connecting arm can rotate around the pin shaft provided on the air chamber support under the drive of the air chamber, so as to drive the adjusting rod, the adjusting arm and the brake to move.

[0051] According to another preferred embodiment of the present invention, a suspension system is also provided, characterized in that it includes:

[0052] The first wheel box 4 is vertically arranged on the first side of the vehicle body;

[0053] The second wheel box is vertically arranged on the second side of the vehicle body; and

[0054] Multiple crossbeams 2 are connected between two longitudinal beams 1 of the frame, and wheels are arranged between two adjacent crossbeams;

[0055] The first wheel box and the second wheel box contain the aforementioned suspension units, which are configured corresponding to each wheel. The space enclosed by the first wheel box, the second wheel box, and multiple crossbeams is used to arrange the carriage.

[0056] Preferably, the first wheel housing 4 includes a frame 3 and a skin. The suspension system can be implemented to include one, two, three, four or more suspension units.

[0057] According to another preferred embodiment of the present invention, the height of the plurality of crossbeams from the ground is less than 1 / 2 of the wheel radius.

[0058] According to another preferred embodiment of the present invention, no connecting shaft running through the left and right sides is provided between the wheels.

[0059] This utility model can achieve one or more of the following technical effects:

[0060] 1. The use of lightweight swing arms and vertically arranged oil-gas springs and air chamber supports improves structural stability;

[0061] 2. Compared to airbag structures, it simplifies the overall structure, reduces the required installation space, and facilitates installation and maintenance.

[0062] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A suspension unit, characterized in that... include: The lightweight swing arm has a hollow internal structure with a through hole at the first end. A mechanical bearing is arranged inside the through hole and is connected to the longitudinal beam through a mounting base. The hub unit is connected to the second end of the lightweight swing arm and has a brake. The gas spring is arranged vertically, with one end connected to the second end of the lightweight swing arm and the other end connected to the top plate of the wheel box via a mounting bracket; The air chamber support is connected to the lightweight swing arm near the first end and extends vertically upward; The air chamber, with its first end connected to the top of the air chamber support; and The transmission unit connects the air chamber and the brake. The hub unit and the mounting base are respectively located on opposite sides of the lightweight swing arm, which is provided with weight reduction holes.

2. The suspension unit according to claim 1, characterized in that... The lightweight swing arm is arranged horizontally.

3. The suspension unit according to claim 2, characterized in that... The number of weight-reducing holes is greater than one, and the weight-reducing holes extend through the front and rear sides of the lightweight swing arm.

4. The suspension unit according to any one of claims 1-3, characterized in that... The air chamber support and the oil-gas spring are arranged in parallel.

5. The suspension unit according to claim 4, characterized in that... The air chamber is located between the air chamber support and the oil-gas spring, with its second end suspended.

6. The suspension unit according to claim 5, characterized in that... The transmission unit includes: a connecting arm, one end of which is connected to the air chamber and the other end of which is connected to an adjusting rod; and an adjusting arm, one end of which is connected to the adjusting rod and the other end of which is connected to the brake or brake lever.

7. The suspension unit according to claim 6, characterized in that... The connecting arm can rotate around the pin on the air chamber support under the drive of the air chamber, thereby driving the adjusting rod, adjusting arm and brake to move.

8. A suspension system, characterized in that... include: The first wheel box is vertically arranged on the first side of the vehicle body; The second wheel box is vertically arranged on the second side of the vehicle body; and Multiple crossbeams connect the two longitudinal beams of the frame, and wheels are arranged between two adjacent crossbeams; The first wheel box and the second wheel box are provided with a suspension unit as described in any one of claims 1-7, the suspension unit is provided corresponding to each wheel, and the space enclosed by the first wheel box, the second wheel box and the multiple crossbeams is used to arrange the carriage.

9. The suspension system according to claim 8, characterized in that... The height of the multiple crossbeams above the ground is less than 1 / 2 of the wheel radius.

10. The suspension system according to claim 8 or 9, characterized in that... There is no connecting shaft running through the left and right sides between the wheels.

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