CN217396113U

CN217396113U - Novel steering driving axle

Info

Publication number: CN217396113U
Application number: CN202123177410.8U
Authority: CN
Inventors: 孙国明; 姜翕伟; 汤辉; 马雍钧; 杨志远; 周玉兵
Original assignee: Shandong Haorui Intelligent Technology Co ltd
Current assignee: Shandong Haorui Intelligent Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-09-09
Anticipated expiration: 2031-12-17

Abstract

The utility model relates to a novel steering drive axle, including horizontal gear box, hydraulic steering hydro-cylinder, brake drum and electronic parking actuating mechanism, horizontal gear box is installed on the axle housing, gear shaft and differential mechanism axle in the horizontal gear box are parallel and are connected with motor or hydraulic motor through flange with the axle pipe, hydraulic steering hydro-cylinder installs hydro-cylinder mount pad department on the axle and is connected with the knuckle, the relative opposite side at gear box power input end of brake drum integration, the brake drum passes through spline and power input shaft or output shaft, electronic parking actuating mechanism sets up on the axle mount pad, be connected with the brake drum through the brake cable, the utility model has the characteristics of high-speed driving straightness nature is good, space utilization is high, turn lateral stability is good, slope way backing stability is good, mountable suspension.

Description

Novel steering driving axle

Technical Field

The utility model belongs to the technical field of the special motor vehicle, especially, relate to a novel steering drive axle.

Background

The existing road sweeper steering modes are generally divided into an articulated steering mode, a front wheel steering mode and a rear wheel steering mode, the articulated steering mode has the advantages of small turning radius, good visual field, easiness for a driver to master a turning critical point, easiness for mounting a wide tread low-pressure tire and the like, but has a series of congenital defects of poor stability during reversing, particularly during reversing on a slope road, poor lateral stability during steering, high power consumption of a steering device, poor linearity during high-speed driving due to the fact that a driving wheel and a steering wheel do not have a positioning angle, poor comfort due to the fact that a front frame and a rear frame do not have an automatic aligning function during high-speed driving, and the like. When the articulated steering system is used for a road sweeper, a steering shaft needs to be installed between the front frame and the rear frame and a steering space is reserved, so that a large amount of space for improving the volume or function is lost, and a large amount of pipeline wire harnesses are repeatedly bent along with articulation, so that the reliability of the whole sweeper is influenced. Although the steering mode of the deflecting wheels can overcome the defects of the articulated steering, compared with the articulated steering, under the condition of the same wheelbase and wheelbase, the turning radius of the steering mode of the deflecting wheels is far higher than that of the articulated steering, so that the road sweeper loses the advantage of flexibility.

The four-wheel steering mode effectively overcomes the defects of the three steering modes while having the advantages, but the steering axle and the driving axle in the existing axle series are generally manufactured separately, a small amount of steering driving axles are used for front axles of off-road vehicles and tractors, and the defects of insufficient bearing capacity, high noise, large space occupation due to the matching use of a transfer case and a transmission shaft and the like exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to improve the not enough of prior art and provide a novel steering drive axle, can be used to sanitation vehicle and special vehicle, four-wheel steering when realizing vehicle four wheel drive through different configuration and steering strategy, the high-speed straightness nature of traveling that has when possessing the wheel steering mode that deflects is good, space utilization is high, turn lateral stability is good, the slope road stability of backing a car is good, advantages such as mountable suspension, it is good to have articulated field of vision that turns to again, turning radius is little, the driver easily masters advantages such as turn critical point, and realize the articulated vehicle crabbing lateral shifting that turns to the mode and can't realize.

The utility model aims at realizing like this, a novel steering drive axle, its characteristics are including horizontal gear box, hydraulic steering hydro-cylinder, brake drum and electronic parking actuating mechanism, wherein:

the transverse gear box is arranged on the axle housing, and a gear shaft and a differential shaft in the transverse gear box are parallel to the axle tube and are connected with the motor or the hydraulic motor through a connecting flange;

the hydraulic steering oil cylinder is arranged at an oil cylinder mounting seat on the axle and is connected with the steering knuckle;

the brake drum is integrated on the other side opposite to the power input end of the gear box, and the brake drum is connected with the power input shaft or the power output shaft through a spline;

the electric parking actuating mechanism is arranged on the axle mounting seat and is connected with the brake drum through a brake cable.

In order to further realize the purpose of the utility model, the transverse gear box can be connected with the axle through the differential mechanism to directly drive the axle.

In order to further realize the utility model discloses an aim at can be that the brake drum is direct to be connected with power input shaft or other gear shafts, utilizes the drive ratio of gear box to amplify braking torque, makes it only need less moment alright carry out reliable parking.

In order to further realize the utility model discloses an aim at, can be that electronic parking actuating mechanism installs on the axle and integrated as an assembly with the axle, electronic parking actuating mechanism passes through driver's cabin electron parking button control.

Compared with the prior art, the utility model has the following characteristics of showing and positive effect: the utility model discloses the axle adopts motor or hydraulic motor drive, adopts horizontal gear box to transmit, but adopts hydraulic steering hydro-cylinder to connect the knuckle and realize axle steering and return the function automatically, adopt driver's cabin electronic parking button control electronic parking actuating mechanism, the parking brake drum is integrated in gear box input shaft department, the brake drum that the pulling is integrated in gear box side brakes power input shaft (one) or output shaft and utilizes gear box tooth ratio to enlarge brake torque, realize reliably parking with less moment, parking actuating mechanism and axle integration are one assembly simultaneously, save installation space, the parking brake of traditional mode is located wheel department and service brake share one set of braking system, or is located gearbox output shaft department, integrate in wheel service brake department, or integration and vehicle gearbox department, the utility model discloses with traditional parking structure in the brake cable need be connected to tire brake drum from the driver's cabin and compare, the length of a brake cable is greatly shortened, the operation of a driver is facilitated, more vehicle space and cost are saved, the simultaneous four-wheel steering of the four-wheel drive of the vehicle can be realized through different configurations and steering strategies, the advantages of good high-speed running linearity, high space utilization rate, automatic steering wheel correction, good turning transverse stability, good slope reversing stability, suspension system installation and the like of a steering mode are possessed, meanwhile, the visual field of articulated steering is good, the turning radius is small, the driver can easily master the turning critical point and the like, and the transverse movement of the vehicle, which cannot be realized by the articulated steering mode, is realized; the transverse gear box is arranged on the axle, the gear box is compact in structure, is connected with the half shaft through the differential mechanism to directly drive the axle, and does not need to be matched with the transfer case and the transmission shaft, so that a large amount of vehicle body operation space is saved; the hydraulic steering oil cylinder is used, hydraulic driving is adopted, the hydraulic steering oil cylinder is directly installed on the axle and connected with the steering knuckle, impact of suspension up-and-down movement on a steering system during driving is avoided, and the hydraulic steering oil cylinder is simple to operate and high in reliability. The brake drum integrated on the side surface of the gear box is directly connected with a power input shaft or other gear shafts, and the transmission ratio of the gear box is utilized to amplify braking torque, so that the parking can be reliably carried out only by small torque. The electric parking actuating mechanism is integrated on the axle and is controlled by the electronic parking button in the cab, so that the length of a brake cable is greatly shortened, the operation of a driver is facilitated, and more vehicle spaces and cost are saved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the straight-line driving state of the present invention.

Fig. 3 is a schematic view of the turning state of the present invention.

Fig. 4 is a schematic view of the crab running state of the present invention.

In the figure: 1. the device comprises a transverse gear box 2, a hydraulic steering oil cylinder 3, a brake drum 4 and an electric parking actuating mechanism.

Detailed Description

A novel steering drive axle, refer to fig. 1, includes horizontal gear box 1, hydraulic steering hydro-cylinder 2, brake drum 3 and electronic parking actuating mechanism 4, wherein:

the transverse gear box 1 is installed on an axle housing in the prior art, a gear shaft and a differential mechanism shaft in the transverse gear box 1 are parallel to an axle tube and are connected with an external motor or a hydraulic motor through a connecting flange, the transverse gear shaft and the differential mechanism are adopted, the gear box is compact in structure, the axle is directly driven through the differential mechanism connecting half shaft, the gear box does not need to be matched with a transfer case and a transmission shaft for use, and the gear box can be directly installed on the axle; the hydraulic steering oil cylinder 2 is arranged at an oil cylinder mounting seat on the axle and connected with the steering knuckle, is directly arranged on the axle and connected with the steering knuckle by adopting hydraulic drive, and avoids the impact of suspension up-and-down motion on a steering system during driving; the brake drum 3 is integrated on the other side opposite to the power input end of the transverse gear box 1, the brake drum 3 is connected with an external power input shaft or an external power output shaft through a spline, and the transmission ratio of the gear box is utilized to amplify braking torque, so that the brake can be parked reliably only by small torque;

electric parking actuating mechanism 4 sets up on the axle mount pad, is connected with the brake drum through the brake cable, through driver's cabin electron parking button control, with brake cable need be connected to tire brake drum from the driver's cabin in traditional parking structure and compare, very big shortening the length of brake cable and make things convenient for driver's operation, saved more vehicle space and cost.

When the utility model is used, the front axle of the chassis is a common steering axle, the rear axle is a steering drive axle of the utility model, when the vehicle runs in a straight line at a high speed, the rear axle keeps the rear drive wheel running in a straight line under the action of the hydraulic steering oil cylinder 2, as shown in figure 2; when the operation is carried out in a narrow place, a rear wheel steering switch can be turned on in a cab and the mode can be adjusted, so that the steering angles of the rear wheel and the front wheel are opposite, the turning radius is greatly reduced, and the maneuvering flexibility is improved, as shown in fig. 3; when the vehicle needs to be cleaned along the side or the side space is limited, a rear wheel steering switch can be turned on in the cab and the mode can be adjusted, so that the steering angles of the rear wheels and the front wheels are the same, and the vehicle can crab and move transversely, as shown in fig. 4; after the use is finished, a straight line running mode can be opened in the cab, and the rear wheels return to the middle position under the action of the hydraulic steering oil cylinder 2, so that the vehicle is ensured to realize safe and stable straight line running, as shown in fig. 2.

In summary, the listed contents are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel steering drive axle which characterized in that, includes horizontal gear box, hydraulic steering hydro-cylinder, brake drum and electronic parking actuating mechanism, wherein:

the brake drum is integrated on the other side opposite to the power input end of the gear box, and the brake drum is connected with the power input shaft or the output shaft through a spline;

2. The new steer-drive axle according to claim 1, wherein the transverse gearbox connects the axle shafts through a differential to directly drive the axle.

3. The new steer-drive axle according to claim 1, wherein the brake drum is directly connected to the power input shaft or gear shaft, and the brake torque is amplified by the gear ratio of the gearbox.

4. The novel steering drive axle of claim 1, wherein the electric parking actuator is mounted on the axle and integrated with the axle into an assembly, and the electric parking actuator is controlled by an electronic parking button of a cab.