Front suspension assembly of heavy truck cab

Abstract

The utility model discloses a front suspension assembly of a heavy truck cab. The front suspension assembly is composed of a left suspension, a right suspension and a stabilizer bar. The left suspension structurally comprises a front suspension upper support, an air bag damper, a front suspension lower support, a swing arm and a turnover support, one side of the bottom of the front end of the front suspension upper support is connected with the upper end of the air bag damper, the lower end of the air bag damper is connected with a frame through the front suspension lower support, and the other side of the bottom of the front end of the front suspension upper support is connected with the front end of the swing arm. The rear end of the swing arm is connected with a turnover support, a reinforcing support is arranged on the side face of the turnover support, and the other end of the reinforcing support is connected with the frame. The reinforcing support is additionally arranged at the position of the overturning support, so that single-point fixation of the overturning support is changed into two-point fixation, the connection strength of the cab and the frame is improved, and the driving safety and stability are enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of cab suspension, and in particular a front suspension assembly for a heavy truck cab. Technical Background

[0002] As people's living standards improve, their requirements for the comfort, safety, and reliability of commercial vehicles are increasing. The existing front suspension structure, with the rear end of the control arm connected to the frame via a tilting bracket, suffers from insufficient strength, which can easily lead to defects such as deformation of the stabilizer bar when the cab tilts. Utility Model Content

[0003] This utility model proposes a front suspension assembly for heavy truck cabs, aiming to solve the problem of easy deformation of the stabilizer bar in the front suspension.

[0004] To solve the above-mentioned technical problems, the present invention provides a front suspension assembly for a heavy-duty truck cab, comprising a left suspension, a right suspension, and a stabilizer bar. The left suspension comprises an upper front suspension bracket, an airbag shock absorber, a lower front suspension bracket, a control arm, and a tilting bracket. One side of the bottom front end of the upper front suspension bracket is connected to the upper end of the airbag shock absorber, and the lower end of the airbag shock absorber is connected to the vehicle frame via the lower front suspension bracket. The other side of the bottom front end of the upper front suspension bracket is connected to the front end of the control arm, and the rear end of the control arm is connected to the tilting bracket. The tilting bracket is characterized by having a reinforcing bracket on its side, with the other end of the reinforcing bracket connected to the vehicle frame. The left and right suspensions have the same structure, and the control arms in both the left and right suspensions are connected to the stabilizer bar.

[0005] Further defining the above technical solution, the structure of the reinforcing bracket includes a connecting bracket and a reinforcing arm. Multiple connecting holes are distributed along the height direction on the side of the flip bracket. The multiple connecting holes are used to adjust the height of the connecting bracket. The connecting bracket is connected to the flip bracket. The upper end of the reinforcing arm has a bent arc-shaped structure. The upper end of the reinforcing arm is connected to the connecting bracket, and the lower end of the reinforcing arm is connected to the vehicle frame.

[0006] A further improvement to the above technical solution is that multiple shallow weight-reducing grooves are distributed along the length direction on the side of the reinforcing arm.

[0007] A further improvement to the above technical solution is that a height valve is provided on the other side of the flipping bracket, and the height valve swing arm is connected to the front end of the swing arm through a connecting rod.

[0008] Beneficial effects: Adding a reinforcing bracket to the tilting bracket changes the tilting bracket from a single-point fixation to a two-point fixation, increasing the connection strength between the cab and the frame, thereby enhancing driving safety and stability. Attached Figure Description

[0009] Figure 1 This utility model is a three-dimensional Figure 1 .

[0010] Figure 2 This utility model is a three-dimensional Figure 2 .

[0011] Figure 3 This is a diagram of the left-side suspension structure.

[0012] Figure 4 This is a schematic diagram of the left-side suspended explosion. Detailed Implementation

[0013] like Figure 1 and Figure 2 As shown, a front suspension assembly for a heavy-duty truck cab includes a left suspension 1, a right suspension 2, and a stabilizer bar 3. The left suspension has the following structure: it includes an upper front suspension bracket 101, an airbag shock absorber 102, a lower front suspension bracket 103, a swing arm 104, and a tilting bracket 105. The upper end of the upper front suspension bracket is used to connect to the cab. One side of the bottom front end of the upper front suspension bracket is connected to the upper end of the airbag shock absorber via a pivot pin. The lower end of the airbag shock absorber is hinged to the lower front suspension bracket via a pivot pin. The lower front suspension bracket is hinged to the vehicle frame via fasteners. The other side of the bottom front end of the upper front suspension bracket is connected to the front end of the swing arm via a tilting bushing 106. The rear end of the swing arm is connected to the tilting bracket via a hinge bushing 107. A reinforcing bracket 108 is provided on the side of the tilting bracket, and the other end of the reinforcing bracket is connected to the vehicle frame.

[0014] like Figure 3 and Figure 4 As shown, the structure of the reinforcing bracket 108 includes a connecting bracket 1081 and a reinforcing arm 1082. Multiple connecting holes 1083 are distributed along the height direction on the side of the flip bracket. These connecting holes are used to adjust the height of the connecting bracket. The connecting bracket is connected to the flip bracket via fasteners. The upper end of the reinforcing arm has a bent arc-shaped structure. The upper end of the reinforcing arm is connected to the connecting bracket via fasteners, and the lower end of the reinforcing arm is connected to the vehicle frame via fasteners. The advantages of this structure are: 1) The distributed connecting holes and connecting brackets allow for flexible adjustment of the reinforcing arm's installation position, which is beneficial for improving production efficiency and achieving the goal of universal reinforcing arm functionality; 2) The optimized arc-shaped structure can improve strength and reduce weight.

[0015] like Figure 3 and Figure 4 As shown, multiple shallow weight-reducing grooves 1084 are distributed along the length direction on the side of the reinforcing arm; the shallow weight-reducing grooves are beneficial for weight reduction while ensuring strength.

[0016] like Figure 2As shown, the other side of the flip bracket is connected to the height valve 109 by fasteners. The height valve swing arm is hinged to the front end of the swing arm by the connecting rod 110. The height valve is used to control the air intake and exhaust volume of the airbag shock absorber. The height valve is arranged in a more compact and reasonable position, improving space utilization efficiency.

[0017] like Figure 1 and Figure 2 As shown, the left and right suspensions have the same structure, and the swing arms in the left and right suspensions are connected to the stabilizer bar;

[0018] The fasteners described in this specification are bolts and nuts.

Claims

1. A front suspension assembly for a heavy-duty truck cab, comprising a left suspension, a right suspension, and a stabilizer bar; the left suspension structure includes an upper front suspension bracket, an airbag shock absorber, a lower front suspension bracket, a control arm, and a tilting bracket; one side of the bottom front end of the upper front suspension bracket is connected to the upper end of the airbag shock absorber, the lower end of the airbag shock absorber is connected to the vehicle frame via the lower front suspension bracket, the other side of the bottom front end of the upper front suspension bracket is connected to the front end of the control arm, and the rear end of the control arm is connected to the tilting bracket, characterized in that: The side of the flip-up bracket is equipped with a reinforcing bracket, the other end of which is connected to the vehicle frame. The reinforcing bracket has a structure including a connecting bracket and a reinforcing arm. Multiple connecting holes are distributed along the height direction on the side of the flip-up bracket. These holes are used to adjust the height of the connecting bracket. The connecting bracket is connected to the flip-up bracket. The upper end of the reinforcing arm has a bent arc-shaped structure. The upper end of the reinforcing arm is connected to the connecting bracket, and the lower end of the reinforcing arm is connected to the vehicle frame. The left and right suspensions have the same structure. The swing arms in the left and right suspensions are connected to the stabilizer bar.

2. The front suspension assembly for a heavy-duty truck cab according to claim 1, characterized in that: The side of the reinforcing arm has multiple shallow weight-reducing grooves distributed along its length.

3. The front suspension assembly for a heavy-duty truck cab according to claim 1 or 2, characterized in that: A height valve is provided on the other side of the flipping bracket, and the height valve swing arm is connected to the front end of the swing arm through a connecting rod.

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