Active suspension device for enhancing stability of forklift

Abstract

The utility model discloses an active suspension device for enhancing the stability of a forklift, which comprises a pneumatic support rod, an adjustable enhanced suspension support structure and a suspension support rod, the adjustable reinforced suspension supporting structure comprises a first fixing plate, a second fixing plate, a cushioning supporting spring, a pair of connecting fixing rings, a fixed protective shell, a telescopic protective shell, an air storage tank, a compression conveying air pump, an air conveying pipe and a pair of auxiliary cushioning supporting assemblies. The utility model relates to the technical field of cushioning suspension devices, and has the beneficial effects that the problems that the existing forklift suspension system usually adopts passive suspension, the suspension parameters are fixed after the manufacturing is completed, the real-time adjustment can not be carried out according to the driving state of the forklift and the road surface condition, and the service life of the forklift is influenced are solved; therefore, the problem that the stability and comfort of the forklift under different road conditions cannot be guaranteed optimally is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing suspension devices, in particular to an active suspension device with enhanced stability of a forklift. Background Art

[0002] A forklift is an industrial handling vehicle widely used in ports, stations, airports, freight yards, factory workshops, warehouses, circulation centers and distribution centers. Its main function is to load, unload, stack and transport palletized goods over short distances. It is a mechanized tool for various pallet handling, loading, unloading, stacking and other operations, and is widely used in various industries. Existing forklift suspension systems often use passive suspension. The suspension parameters are fixed after manufacturing and cannot be adjusted in real time according to the forklift's driving status and road conditions. This results in the forklift's stability and comfort under different road conditions not being optimally guaranteed. Utility Model Content

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: an active suspension device for enhancing the stability of a forklift, comprising: a pneumatic support rod, on which an adjustable enhanced suspension support structure is mounted;

[0004] The adjustable enhanced suspension support structure includes: a first fixing plate, a second fixing plate, a shock absorbing support spring, a pair of connecting fixing rings, a fixed protective shell, a telescopic protective shell, an air storage tank, a compression air pump, an air pipe and a pair of auxiliary shock absorbing support components;

[0005] The first fixed plate and the second fixed plate are installed at the upper and lower ends of the pneumatic support rod, the shock-absorbing support spring is installed in the middle position of the first fixed plate and the second fixed plate, a pair of connecting fixing rings are installed on the upper and lower walls of the first fixed plate and the second fixed plate, the fixed protective shell is installed on the wall surface of the first fixed plate, the telescopic protective shell is installed on the lower wall surface of the second fixed plate and movably embedded in the fixed protective shell, the air storage tank is installed on the front wall surface of the fixed protective shell, the compression and delivery air pump is fixed on the outer wall surface of the protective shell and is connected to the air storage tank, the two ends of the air delivery pipe are respectively installed on the compression and delivery air pump and the pneumatic support rod, and a pair of auxiliary shock-absorbing support assemblies are installed on the first fixed plate, the second fixed plate and the fixed protective shell.

[0006] Preferably, a guide rod is provided on the telescopic protective shell.

[0007] Preferably, the gas storage tank is mounted on the fixed protective shell via a pair of connecting frames.

[0008] Preferably, the gas storage tank is filled with low-compressibility inert gas.

[0009] Preferably, each of the pair of auxiliary shock-absorbing support assemblies comprises: a pair of mounting slots, a pair of shock-absorbing support rods, a connecting rod and a spring shock absorber;

[0010] A pair of mounting grooves are respectively provided on the first fixed plate and the second fixed plate; one end of a pair of shock-absorbing support rods is movably installed in the pair of mounting grooves; the connecting rod is movably installed on the other end of the pair of shock-absorbing support rods; one end of the spring shock absorber is installed on the fixed protective shell; the other end of the spring shock absorber is installed on the inner wall surface of the connecting rod.

[0011] Preferably, the connecting rod is mounted on a pair of shock absorbing support rods via a rotating pin.

[0012] Beneficial effects

[0013] The utility model provides an active suspension device for enhancing the stability of a forklift, which has the following beneficial effects: this solution adopts an adjustable enhanced suspension support structure, and adjusts the suspension support strength by filling and extracting inert gas in the shock-absorbing suspension, which can be adaptively adjusted according to different road conditions, and cooperates with the auxiliary support structure to ensure the suspension shock-absorbing effect, thereby solving the problem that the existing forklift suspension system often adopts passive suspension, and the suspension parameters are fixed after manufacturing, and cannot be adjusted in real time according to the forklift driving status and road conditions, which results in the stability and comfort of the forklift under different road conditions cannot be optimally guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of an active suspension device with enhanced forklift stability described in the present invention.

[0015] Figure 2 This is a schematic diagram of a front cross-sectional three-dimensional structure of an active suspension device with enhanced forklift stability described in the present invention.

[0016] Figure 3 This is a side structural schematic diagram of an active suspension device with enhanced forklift stability according to the present invention.

[0017] In the figure: 1-pneumatic support rod; 2-first fixed plate; 3-second fixed plate; 4-shock-absorbing support spring; 5-connecting fixed ring; 6-fixed protective shell; 7-telescopic protective shell; 8-air storage tank; 9-compression air pump; 10-air pipe; 11-guide rod; 12-connecting frame; 13-mounting slot; 14-shock-absorbing support rod; 15-connecting rod; 16-spring shock absorber; 17-rotating pin. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0019] Example: See Figure 1-3 The present invention provides a technical solution: an active suspension device for enhancing the stability of a forklift. This solution takes into account that the existing forklift suspension system has fixed values ​​and cannot be adaptively adjusted according to different usage requirements and driving conditions. The shock absorption effect is poor, which affects the use range of the forklift. Based on the above content, this case provides the following technical means;

[0020] Specifically, the device comprises at least a pneumatic support rod 1, a first fixing plate 2, a second fixing plate 3, a shock absorbing support spring 4, a pair of connecting fixing rings 5, a fixed protective shell 6, a telescopic protective shell 7, an air storage tank 8, a compression and delivery air pump 9, an air delivery pipe 10 and a pair of auxiliary shock absorbing support components;

[0021] A pair of auxiliary shock-absorbing support components each includes: a pair of mounting slots 13, a pair of shock-absorbing support rods 14, a connecting rod 15 and a spring shock absorber 16;

[0022] The pneumatic support rod 1 is used to install and support the entire equipment, and is connected to the vehicle equipment in conjunction with the connecting fixing ring 5 on the first fixing plate 2 and the second fixing plate 3. When using the cushioning, the compressed air pump 9 is started according to the use requirements to fill the inert gas in the air tank 8 into the pneumatic support rod 1 through the air pipe 10. By changing the pressure inside the pneumatic support rod 1 and coordinating with the low compressibility of the inert gas, the support effect of the suspension is enhanced to achieve active suspension adjustment. At the same time, when the suspension is vibrated and expanded and contracted, the distance between the first fixing plate 2 and the second fixing plate 3 changes, driving a pair of cushioning support rods 14 to transmit, and cooperating with the connecting rod 15 to drive the spring shock absorber 16 to expand and contract, thereby assisting the separation of the suspension to ensure the cushioning effect.

[0023] More specifically, the first fixed plate 2 and the second fixed plate 3 are installed at the upper and lower ends of the pneumatic support rod 1, the shock-absorbing support spring 4 is installed in the middle position of the first fixed plate 2 and the second fixed plate 3, a pair of connecting fixing rings 5 ​​are installed on the upper and lower walls of the first fixed plate 2 and the second fixed plate 3, the fixed protective shell 6 is installed on the upper wall of the first fixed plate 2, the telescopic protective shell 7 is installed on the lower wall of the second fixed plate 3 and is movably embedded in the fixed protective shell 6, the air tank 8 is installed on the front wall of the fixed protective shell 6, the compression and delivery air pump 9 is fixed on the outer wall of the protective shell 6 and is connected to the air tank 8, the two ends of the air pipe 10 are respectively installed on the compression and delivery air pump 9 and the pneumatic support rod 1, and a pair of auxiliary shock-absorbing support components are installed on the first fixed plate 2, the second fixed plate 3 and the fixed protective shell 6;

[0024] A pair of mounting grooves 13 are respectively provided on the first fixing plate 2 and the second fixing plate 3, one end of a pair of shock-absorbing support rods 14 is movably installed in the pair of mounting grooves 13, and a connecting rod 15 is movably installed on the other end of the pair of shock-absorbing support rods 14. One end of a spring shock absorber 16 is installed on the fixed protective shell 6, and the other end of the spring shock absorber 16 is installed on the inner wall surface of the connecting rod 15.

[0025] In the specific implementation process, further, a guide rod 11 is provided on the telescopic protective shell 7 .

[0026] In a specific implementation process, further, the gas storage tank 8 is installed on the fixed protective shell 6 through a pair of connecting frames 12.

[0027] In the specific implementation process, further, the gas storage tank 8 is filled with low-compressibility inert gas.

[0028] In a specific implementation process, further, the connecting rod 15 is installed on a pair of shock-absorbing support rods 14 through a rotating pin 17 .

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An active suspension device for enhancing forklift stability, comprising: The pneumatic support rod (1) is characterized in that an adjustable enhanced suspension support structure is installed on the pneumatic support rod (1); The adjustable enhanced suspension support structure comprises: a first fixing plate (2), a second fixing plate (3), a shock absorbing support spring (4), a pair of connecting fixing rings (5), a fixed protective shell (6), a telescopic protective shell (7), an air storage tank (8), a compression delivery air pump (9), an air delivery pipe (10), and a pair of auxiliary shock absorbing support components; The first fixed plate (2) and the second fixed plate (3) are installed at the upper and lower ends of the pneumatic support rod (1); the shock-absorbing support spring (4) is installed at the middle position of the first fixed plate (2) and the second fixed plate (3); a pair of connecting fixed rings (5) are installed on the upper and lower walls of the first fixed plate (2) and the second fixed plate (3); the fixed protective shell (6) is installed on the upper wall of the first fixed plate (2); the telescopic protective shell (7) is installed on the lower wall of the second fixed plate (3) and is movably embedded in the fixed protective shell (6); the air storage tank (8) is installed on the front wall of the fixed protective shell (6); the compression and delivery air pump (9) is installed on the outer wall of the fixed protective shell (6) and is connected to the air storage tank (8); the two ends of the air delivery pipe (10) are respectively installed on the compression and delivery air pump (9) and the pneumatic support rod (1); and a pair of auxiliary shock-absorbing support components are installed on the first fixed plate (2), the second fixed plate (3) and the fixed protective shell (6).

2. The active suspension device for enhancing forklift stability according to claim 1, characterized in that: A guide rod (11) is provided on the telescopic protective shell (7).

3. The active suspension device for enhancing forklift stability according to claim 1, characterized in that: The gas storage tank (8) is mounted on the fixed protective housing (6) via a pair of connecting frames (12).

4. The active suspension device for enhancing forklift stability according to claim 1, characterized in that: The gas storage tank (8) is filled with low-compressibility inert gas.

5. The active suspension device for enhancing forklift stability according to claim 1, characterized in that: A pair of auxiliary shock-absorbing support components each comprises: a pair of mounting slots (13), a pair of shock-absorbing support rods (14), a connecting rod (15) and a spring shock absorber (16); A pair of mounting grooves (13) are respectively provided on the first fixing plate (2) and the second fixing plate (3); one end of a pair of shock absorbing support rods (14) is movably mounted in the pair of mounting grooves (13); a connecting rod (15) is movably mounted on the other end of the pair of shock absorbing support rods (14); one end of a spring shock absorber (16) is mounted on the fixed protective housing (6); and the other end of the spring shock absorber (16) is mounted on the inner wall surface of the connecting rod (15).

6. The active suspension device for enhancing forklift stability according to claim 5, characterized in that: The connecting rod (15) is mounted on a pair of shock absorbing supporting rods (14) via a rotating pin (17).

Images