CN210310599U

CN210310599U - Light rear suspension assembly of heavy-duty vehicle cab

Info

Publication number: CN210310599U
Application number: CN201921201586.2U
Authority: CN
Inventors: 杨波; 杨益奎
Original assignee: Anhui Ankai Huaxia Auto Parts Hefei Co ltd
Current assignee: Anhui Ankai Huaxia Auto Parts Hefei Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-14
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to a suspension assembly behind heavy-duty vehicle driver's cabin lightweight installs in the frame, include: the damping mechanism is arranged on the fixed seat; the damper includes: the connecting rod is fixed at the top of the fixed seat, the air cylinder is in sliding connection with the connecting rod, and the sealing cylinders are symmetrically fixed on two sides of the air cylinder; through holes are formed in two sides of the air cylinder, a compressible rubber air bag is arranged in the sealing cylinder, an opening is formed in one side, away from the air cylinder, of the rubber air bag, an inflatable air bag is connected to the opening, and the inflatable air bag is communicated with the rubber air bag. The utility model discloses a set up the cylinder and provide taking a breath and dynamic balance environment, through setting up the through-hole exhaust, cushion the connecting rod removal through establishing the replacement air cavity, hold control gas through setting up rubber air bag and aerify in the gasbag holds the cylinder. The device utilizes the air pressure and the gravity of the cab to form dynamic balance, and can effectively improve the overturning and driving stability of the cab as the buffer during the overturning or driving of the cab of vehicles with heavy load, light load and the like.

Description

Light rear suspension assembly of heavy-duty vehicle cab

Technical Field

The utility model relates to the technical field of vehicles, specifically suspension assembly behind heavy-duty vehicle driver's cabin lightweight.

Background

The bottom of the cab of the heavy-duty automobile is provided with a turnover device, and the cab can be contacted with a locking structure when the cab is turned back due to the large weight of the cab, and then the cab is locked. This process is impacted and a cushioning device is provided to absorb the vibration, typically a rear suspension assembly, for cushioning. The existing rear suspension assembly basically adopts springs to buffer and absorb vibration, but only the vibration absorption effect of the springs is limited, and a good hydraulic buffer device is adopted, but the mass and the occupied area are large. The device for absorbing vibration and buffering is suitable for heavy-duty automobiles, and is a light-weight rear suspension assembly and a front suspension assembly matched with the rear suspension assembly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to prior art exist not enough, provide the suspension assembly behind heavy load vehicle driver's cabin lightweight.

In order to solve the above problems, the utility model adopts the following technical proposal:

suspension assembly behind heavy-duty vehicle driver's cabin lightweight installs in the frame, includes: the damping mechanism is arranged on the fixed seat; the damper mechanism includes: the air cylinder is fixed on the top of the fixed seat, the air cylinder is connected with the connecting rod in a sliding mode, and the sealing cylinders are symmetrically fixed on two sides of the air cylinder; the air cylinder is characterized in that through holes are formed in two sides of the air cylinder, a compressible rubber air bag is arranged in the sealing cylinder, an opening is formed in one side, away from the air cylinder, of the rubber air bag, an inflatable air bag is connected to the opening, and the inflatable air bag is communicated with the rubber air bag.

As an improvement of the technical scheme, the end face of the connecting rod is connected with a piston, and the piston is connected with the inner wall of the cylinder in a sliding manner; a rodless cavity in the cylinder is provided with an air exchange cavity; the through holes are positioned on two sides of the ventilation cavity and are positioned above one half of the height of the cylinder.

As an improvement of the technical scheme, the through hole is positioned below three-quarter height of the cylinder, and the thickness of the piston is larger than the diameter of the through hole.

As an improvement of the above technical solution, the through hole and the opening are located at the same height.

As an improvement of the technical scheme, the bottom of the fixing seat is provided with a positioning block, the positioning block is provided with a positioning groove which penetrates through two end faces of the positioning block, and the groove section of the positioning groove is in a semi-circular arc shape.

Compared with the prior art, the utility model discloses an implement the effect as follows:

the utility model discloses a set up the cylinder and provide taking a breath and dynamic balance environment, through setting up the through-hole exhaust, cushion the connecting rod removal through establishing the replacement air cavity, hold control gas through setting up rubber air bag and aerify in the gasbag holds the cylinder. The device utilizes the air pressure and the gravity of the cab to form dynamic balance, and can effectively improve the overturning and driving stability of the cab as the buffer during the overturning or driving of the cab of vehicles with heavy load, light load and the like, and the weight of the device is light, so that the load of the vehicle can be reduced.

Drawings

Fig. 1 is a front view of a rear suspension assembly of the present invention;

fig. 2 is a left side view of the rear suspension assembly of the present invention;

fig. 3 is a partial view a of fig. 2.

In the figure: 1-fixed seat, 11-first locating piece, 111-locating slot, 12-connecting rod, 121-first connecting plate, 13-locating pin, 131-second locating piece, 2-damper, 21-cylinder, 211-air exchange chamber, 212-through hole, 22-first connecting plate, 221-connecting rod, 222-recess, 23-connecting rod, 231-piston, 24-sealed cylinder, 241-rubber air bag, 242-opening, 25-inflatable air bag, 3-supporting plate, 31-second connecting plate, 32-third connecting plate, 33-spring.

Detailed Description

The present invention will be described with reference to specific embodiments.

Fig. 1 is a front view of the rear suspension assembly of the present invention, fig. 2 is a left side view of the rear suspension assembly of the present invention, fig. 3 is a partial view a of fig. 2, and the partial positions in the drawings are clearly shown and are processed in a partial sectional view, as shown in fig. 1-3.

The rear suspension assembly is installed in the frame, include: fixing base 1, install damper 2 on the fixing base 1. The damper mechanism 2 includes: the device comprises a connecting rod 23 fixed on the top of the fixed seat 1, a cylinder 21 in sliding connection with the connecting rod 23, and sealing cylinders 24 symmetrically fixed on two sides of the cylinder 21. Through holes 212 are formed in two sides of the air cylinder 21, a compressible rubber air bag 241 is arranged in the sealing cylinder 24, an opening 242 is formed in one side, away from the air cylinder 21, of the rubber air bag 241, an inflatable air bag 25 is connected to the opening 242, and the inflatable air bag 25 is communicated with the rubber air bag 241.

This device utilizes damper 2 to absorb the driver's cabin and falls the vibration that takes place in the frame, promotes the stability of driver's cabin upset. The specific operation principle of the device is as follows: the connecting rod 23 is arranged on the fixed seat 1, and the air cylinder 21 is fixed on the frame. After the cab is overturned, the cab is dropped on the fixed seat 1, the connecting rod 23 is pressed to move downwards, the air in the air cylinder 21 moves to the through holes 212 at the two sides, and the air in the air cylinder 21 is reduced. The gas exiting from the through hole 212 enters the sealing cylinder 24, the rubber bladder 241 is compressed, and the gas originally in the rubber bladder 241 is discharged into the inflatable bladder 25 by the compression, and the inflatable bladder 25 is deformed.

The end face of the connecting rod 23 is connected with a piston 231, and the piston 231 is connected with the inner wall of the cylinder 21 in a sliding manner. A rodless chamber in the cylinder 21 is provided as a breather chamber 211. The through holes 212 are located at both sides of the air exchanging chamber 211, and the through holes 212 are located at a height of more than one half of the cylinder 21. This arrangement allows the piston 231 to have a certain moving space and to provide a sufficient ventilation space.

The through-hole 212 is located below three-quarters of the height of the cylinder 21, and the thickness of the piston 231 is greater than the diameter of the through-hole 212. This arrangement allows the piston 231 to block the through hole 212 when it moves through the through hole 212, and no gas exchange occurs. The driver's cabin gravity continues to press connecting rod 23 this moment and removes, compresses the gas in the gas exchange chamber 211 for atmospheric pressure in the gas exchange chamber 211 rises, and remaining gas plays the damping effect, slows down piston 231 and removes, plays the cushioning effect, and atmospheric pressure and gravity balance back, atmospheric pressure auto-lock this moment, and this process is a dynamic balance, can constantly self-adjust, adapts to gravity and changes. When the rod 23 is retracted, the air pressure presses the piston 231 to return quickly, and the originally discharged air is filled back into the cylinder 21 due to the strong air pressure in the seal cylinder 24.

In the process, the connecting rod 23 drives the gas to circulate, so that the volume of the gas is changed relatively, the gas pressure is changed, and the movement of the connecting rod 23 is buffered. The device is also suitable for buffering the cab of a heavy-duty vehicle by lifting the original air pressure in the air cylinder and expanding the volume of the air exchange cavity 211.

The through hole 212 is located at the same height as the opening 242, so that the rubber air bag 241 can be well compressed during air exhaust, and air of the rubber air bag 241 can be directly pushed out.

The bottom of the fixed seat 1 is provided with a positioning block 11, the positioning block 11 is provided with a positioning groove 111 penetrating through two end faces of the positioning block 11, and the groove section of the positioning groove 111 is in a semi-circular arc shape. The positioning block 11 is used for contacting with the cab for positioning. The semicircular positioning groove 111 is used, so that the contact surface is enlarged, and the connection stability is improved.

In addition to the above arrangements, there are other conventional arrangements in the prior art, which have been shown in the drawings and will not be described in detail herein.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. Suspension assembly behind heavy-duty vehicle driver's cabin lightweight installs in the frame, and its characterized in that includes: the shock absorption device comprises a fixed seat (1) and a shock absorption mechanism (2) arranged on the fixed seat (1); the damper mechanism (2) includes: the device comprises a connecting rod (23) fixed at the top of a fixed seat (1), a cylinder (21) in sliding connection with the connecting rod (23), and sealing cylinders (24) symmetrically fixed at two sides of the cylinder (21);

through holes (212) are formed in two sides of the air cylinder (21), a compressible rubber air bag (241) is arranged in the sealing cylinder (24), an opening (242) is formed in one side, away from the air cylinder (21), of the rubber air bag (241), an inflatable air bag (25) is connected to the opening (242), and the inflatable air bag (25) is communicated with the rubber air bag (241).

2. The rear suspension assembly for the light weight of the cab of the heavy-duty vehicle as claimed in claim 1, wherein a piston (231) is connected to an end surface of the connecting rod (23), and the piston (231) is slidably connected with an inner wall of the cylinder (21); a rodless cavity in the cylinder (21) is arranged as a gas exchange cavity (211); the through holes (212) are positioned at two sides of the air exchange cavity (211), and the through holes (212) are positioned above one half of the height of the air cylinder (21).

3. The heavy-duty vehicle cab lightweight rear suspension assembly according to claim 2, wherein the through hole (212) is located below three-quarters of the height of the cylinder (21), and the thickness of the piston (231) is greater than the diameter of the through hole (212).

4. The heavy-duty vehicle cab lightweight rear suspension assembly of claim 1, wherein said through hole (212) is at the same height as said opening (242).

5. The rear suspension assembly for the light weight of the cab of the heavy-duty vehicle as claimed in claim 1, wherein a positioning block (11) is disposed at the bottom of the fixing seat (1), positioning grooves (111) penetrating through two end faces of the positioning block (11) are disposed on the positioning block (11), and a groove cross section of each positioning groove (111) is in a shape of a semi-circular arc.