Airbag suspension drive axle of infield low-speed offset tractor

Abstract

The invention discloses an infield low-speed offset tractor air bag suspension drive axle which comprises a drive axle housing and a brake mechanism, circular shafts are installed on the two sides of the drive axle housing, hub reduction gear assemblies are installed on the circular shafts, and supporting steel plates are installed on the two sides of the drive axle housing. A mounting shell is mounted on one side of the supporting steel plate through bolts, and air bag type air springs are fixedly mounted on the two sides of the surface of the top of the mounting shell. According to the airbag suspension drive axle of the infield low-speed offset tractor, the airbag type air spring design is adopted, the stability and the damping performance of the tractor are effectively enhanced, the power transmission efficiency is remarkably improved through the hub reducers introduced into the drive axle, energy loss is reduced, the performance of an electric drive system can be brought into full play, and the service life of the tractor is prolonged. According to the improved brake system, the brake response speed and reliability are remarkably improved by adopting the design of the high-sensitivity brake cylinder and the optimized connecting rod.

Description

Technical Field

[0001] The invention relates to the field of new energy vehicles, in particular to an airbag suspension drive axle for an infield low-speed offset tractor. Background Art

[0002] As the world pays more attention to environmental protection and sustainable development, the research and development and application of new energy port tractors are receiving more and more attention. Such tractors are mainly used for port cargo transportation, rely on electric drive, and have the advantages of environmental protection, low noise, and low energy consumption. However, the airbag suspension drive axle of the infield low-speed offset tractor in the existing technology often has some shortcomings.

[0003] First, the traditional drive axle structure design is mainly based on mechanical transmission, which easily leads to low transmission efficiency, especially during frequent starting and stopping, the energy loss is significant, and the advantages of the electric drive system cannot be fully utilized. In addition, the shock absorption effect of the traditional drive axle is not ideal, especially in the port environment, the uneven ground and frequent turns will cause the vehicle to drive unsteadily, affecting the working efficiency and operation safety.

[0004] Secondly, the sensitivity and response speed of the braking system directly affect the safety of the tractor. The current braking mechanism design is relatively simple and fails to fully consider the complex operating environment of the port. In an emergency, the braking system may not be able to quickly and effectively reduce the vehicle speed, leading to safety hazards.

[0005] In addition, existing drive axle structures generally have the problem of poor adaptability to the ground, especially under high-load conditions, insufficient stability, which can easily lead to increased tire wear, thereby increasing maintenance costs and frequency of use.

[0006] In view of the above problems, the present invention proposes an improved infield low-speed offset tractor airbag suspension drive axle. Summary of the invention

[0007] The purpose of the present invention is to provide an infield low-speed offset tractor airbag suspension drive axle to address the deficiencies of the prior art and to solve the problems raised in the background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: An airbag suspension drive axle for an infield low-speed offset tractor comprises a drive axle housing and a brake mechanism, round shafts are installed on both sides of the drive axle housing, and wheel-side reducer assemblies are installed on the round shafts, support steel plates are installed on both sides of the drive axle housing, a mounting shell is installed on one side of the support steel plate by bolts, airbag-type air springs are fixedly installed on both sides of the top surface of the mounting shell, an upper cover plate is fixedly installed on the top of the airbag-type air spring, and the brake mechanism is installed at the lower part of the mounting shell.

[0009] As a preferred technical solution of the present invention, the upper part of the cover plate installed on the top of the two airbag-type air springs is connected to the beam of the tractor, and the lower part of the two airbag-type air springs is connected to a mounting shell for enhancing stability.

[0010] As a preferred technical solution of the present invention, a mounting clamp is provided on the support steel plate, the mounting clamp provided on the support steel plate is installed on both sides of the drive axle housing by bolts, and the mounting clamp provided on the support steel plate is rotatably connected to the drive axle housing.

[0011] As a preferred technical solution of the present invention, the brake mechanism includes a brake cylinder, a connecting rod and a brake plate. There are two brake cylinders, and the brake cylinders are respectively arranged on both sides below the mounting shell.

[0012] As a preferred technical solution of the present invention, a brake pad is arranged on the brake plate, one end of the connecting rod is hinged to the output end of the brake cylinder, and the other end of the connecting rod is hinged to one side of the bottom of the brake plate.

[0013] As a preferred technical solution of the present invention, the brake pads arranged on the brake plate can rub the brake drum through the connecting rod when the brake cylinder is activated, so as to reduce the speed of the vehicle and stop it.

[0014] As a preferred technical solution of the present invention, the supporting steel plate is in a Z shape, and the mounting shell is fixedly mounted on the right side of the top surface of the supporting steel plate by bolts.

[0015] Compared with the prior art, the present invention provides an infield low-speed offset tractor airbag suspension drive axle, which has the following beneficial effects: 1. The airbag suspension drive axle of the low-speed offset tractor in the infield of the present invention effectively enhances the stability and shock absorption performance of the vehicle by adopting the airbag air spring design. This design can not only automatically adjust the stiffness of the spring to adapt to different loads, but also effectively absorb the impact caused by uneven ground, thereby ensuring the smooth driving of the vehicle in the complex port environment and reducing the risk of vibration and damage during cargo transportation.

[0016] 2. The wheel-side reducer introduced into the airbag suspension drive axle of the infield low-speed offset tractor of the present invention significantly improves the power transmission efficiency, reduces energy loss, and enables the electric drive system to give full play to its performance. This optimized design is particularly prominent during high-load operations, which not only improves the operating efficiency of the tractor, but also reduces energy consumption, which meets the needs of modern ports for low-carbon and environmental protection.

[0017] 3. The improved brake system of the present invention significantly improves the brake response speed and reliability by adopting a highly sensitive brake cylinder and an optimized connecting rod design. In an emergency, the brakes can take effect quickly to ensure the safe parking of the tractor and reduce safety hazards. In addition, the structural design simplifies the maintenance process, making it more convenient for operators to use and improving overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view schematic diagram of an airbag suspension drive axle of an infield low-speed offset tractor according to the present invention; Figure 2 The present invention is a bottom-up structural schematic diagram of an airbag suspension drive axle of an infield low-speed offset tractor.

[0019] Figure numerals: 1. Drive axle housing; 2. Main reducer assembly; 3. Wheel-side reducer assembly; 4. Air bag air spring; 5. Mounting housing; 6. Support steel plate; 7. Brake cylinder; 8. Connecting rod; 9. Brake plate; 10. Upper cover plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0021] The present embodiment refers to an infield low-speed offset tractor airbag suspension drive axle structure, which comprises a drive axle housing 1 and a brake mechanism. Round shafts are respectively installed on both sides of the drive axle housing 1, and wheel-side reducer assemblies 3 are provided on the round shafts. The reducer is responsible for reducing the speed of the motor and providing power suitable for the tractor to travel. Support steel plates 6 are installed on both sides of the drive axle housing 1. The function of these steel plates is to enhance the stability and strength of the structure and ensure that good performance can be maintained under high load conditions. One side of the support steel plate 6 is fixedly connected to the mounting housing 5 by bolts to form a stable support structure.

[0022] On the top surface of the mounting housing 5, airbag air springs 4 are fixedly mounted on both sides. The airbag air springs 4 are designed to automatically adjust the internal air pressure according to the actual load, thereby changing the stiffness of the spring to ensure that the vehicle is stable and comfortable during driving. The top of the airbag air spring is connected to the beam of the tractor to form an effective shock absorption system, which helps to absorb the impact caused by uneven ground and improve the stability of the vehicle.

[0023] The overall performance is improved by optimizing the design of multiple key components. Specifically, the design of the airbag air spring can not only effectively absorb ground impact, but also automatically adjust the spring stiffness according to the load, ensuring that the vehicle can maintain good stability under various working conditions. At the same time, the setting of the wheel-side reducer can improve transmission efficiency, reduce energy loss, and give full play to the performance of the electric drive system.

[0024] In terms of the brake system, the present invention improves the brake response speed and stability by introducing a highly sensitive brake cylinder and an improved connecting rod design, ensuring quick and effective parking in an emergency, thereby improving operational safety.

[0025] In summary, the present invention aims to improve the performance and safety of the drive axle through an innovative design scheme to meet the requirements of modern port logistics for high efficiency and low emissions, in order to address the technical deficiencies of the existing infield low-speed offset tractor airbag suspension drive axle. Example 2

[0026] In this embodiment, the brake mechanism is composed of a brake cylinder 7, a connecting rod 8 and a brake plate 9. The two brake cylinders 7 are respectively arranged on both sides of the bottom of the mounting shell 5, which can ensure the uniform force of the brake system. The output end of the brake cylinder 7 is hinged to the brake plate 9 through the connecting rod 8. One end of the connecting rod 8 is connected to the output end of the brake cylinder 7, and the other end is hinged to the bottom of the brake plate 9.

[0027] The brake plate 9 is provided with high-performance brake pads, which act on the brake drum through the connecting rod 8 when the brake cylinder 7 is activated, thereby generating friction to reduce the vehicle speed. The friction between the brake pads and the brake drum is precisely designed to ensure that the brake system can respond quickly and effectively under various working conditions, thereby improving safety. This structural design is particularly suitable for use in busy environments such as ports, and can quickly stop the vehicle in an emergency, reducing safety risks. Example 3

[0028] This embodiment emphasizes the design of the support steel plate 6, which adopts a Z-shaped structure to increase the overall load-bearing capacity and stability. The mounting clamps on the support steel plate 6 are fixed to both sides of the drive axle housing 1 by bolts and are rotatably connected to the drive axle housing 1. This design allows for effective load dispersion during vehicle driving and reduces stress concentration caused by high-speed driving or turning, thereby improving the reliability of the entire vehicle.

[0029] In actual application, the electric drive system of the new energy port tractor transmits power to the wheel-side reducer to push the vehicle forward. The airbag air spring 4 monitors the load changes in real time and automatically adjusts the air pressure to maintain the best driving state. When braking is required, the driver operates the brake control system to quickly start the vehicle's brake cylinder 7. The brake cylinder 7 quickly releases the hydraulic pressure and transmits the braking force to the brake plate 9 through the connecting rod 8, thereby achieving effective braking.

[0030] This design not only improves the overall performance of the drive axle, but also enhances its adaptability in complex working environments, ensuring that the new energy port tractor can efficiently and safely perform port cargo transportation tasks. The overall solution has significant advantages in structure and function, meeting the needs of modern ports for high efficiency, low emissions and safe operations.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An infield low-speed offset tractor airbag suspension drive axle, comprising a drive axle housing (1) and a brake mechanism, characterized in that: Round shafts are installed on both sides of the drive axle housing (1), and wheel-side reducer assemblies (3) are installed on the round shafts. Support steel plates (6) are installed on both sides of the drive axle housing (1), and a mounting housing (5) is installed on one side of the support steel plate (6) by bolts. Airbag air springs (4) are fixedly installed on both sides of the top surface of the mounting housing (5), and an upper cover plate (10) is fixedly installed on the top of the airbag air spring (4). The brake mechanism is installed at the bottom of the mounting housing (5), and the brake mechanism includes a brake cylinder (7), a connecting rod (8) and a brake plate (9). There are two brake cylinders (7), and the brake cylinders (7) are respectively arranged on both sides below the mounting housing (5).

2. The airbag suspension drive axle for an infield low-speed offset tractor according to claim 1, characterized in that: The upper cover plate (10) installed on the top of the two airbag-type air springs (4) is connected to the beam of the tractor at the top, and the lower part of the two airbag-type air springs (4) is connected to a mounting shell (5) for enhancing stability.

3. The airbag suspension drive axle for an infield low-speed offset tractor according to claim 1, characterized in that: The support steel plate (6) is provided with a mounting clamp seat, and the mounting clamp seat provided on the support steel plate (6) is mounted on both sides of the drive axle housing (1) by means of bolts, and the mounting clamp seat provided on the support steel plate (6) is rotatably connected to the drive axle housing (1).

4. The airbag suspension drive axle for an infield low-speed offset tractor according to claim 1, characterized in that: A brake pad is provided on the brake plate (9), one end of the connecting rod (8) is hinged to the output end of the brake cylinder (7), and the other end of the connecting rod (8) is hinged to one side of the bottom of the brake plate (9).

5. The airbag suspension drive axle for an infield low-speed offset tractor according to claim 4, characterized in that: The brake pads arranged on the brake plate (9) can rub against the brake drum through the connecting rod (8) when the brake cylinder (7) is activated, thereby reducing the vehicle speed and stopping the vehicle.

6. The airbag suspension drive axle for an infield low-speed offset tractor according to claim 1, characterized in that: The supporting steel plate (6) is in a Z shape, and the mounting housing (5) is fixedly mounted on the right side of the top surface of the supporting steel plate (6) by means of bolts.

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