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Hydraulic moving driving device of land levelling machine

A walking drive and grader technology, which is applied to mechanically driven excavators/dredgers, earth movers/shovelers, construction, etc., can solve the problem of unstable quality of graders, quality cannot be guaranteed, and many non-standard parts, etc. problem, to achieve the effect of simple structure, low production cost and high degree of automation

Inactive Publication Date: 2006-04-12
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the reliability is poor, the average trouble-free working time and the service life of the first overhaul period are much lower than foreign products
This is because there are many non-standard parts, small batches, and quality cannot be guaranteed, which causes the quality of some motor graders to be unstable.
With the traditional electrical control system, it is impossible to use automatic leveling, operating condition monitoring system and electronic fault diagnosis system for graders

Method used

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  • Hydraulic moving driving device of land levelling machine
  • Hydraulic moving driving device of land levelling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] exist figure 1 Among them, the hydraulic travel driving device of the motor grader in this embodiment is composed of a variable hydraulic pump 1 and a combined hydraulic motor 2 connected through conduits.

[0015] The variable hydraulic pump 1 is installed on the engine of the motor grader and connected with the output shaft of the engine with a coupling. The engine provides power for the variable hydraulic pump 1. The variable hydraulic pump 1 communicates with the combined hydraulic motor 2 through a conduit. This embodiment The combined hydraulic motor 2 is a combination of a variable hydraulic motor and another variable hydraulic motor. The combined hydraulic motor 2 provides driving force for the rear wheel of the motor grader. The combined hydraulic motor 2 is connected with the universal transmission of the grader. The mechanisms 6 are connected, and the universal transmission mechanism 6 is connected with the drive axle 3 of the motor grader with a coupling pie...

Embodiment 2

[0017] exist figure 2 Among them, the combined hydraulic motor 2 of this embodiment is connected with the drive axle 3 of the motor grader with a coupling. The combined hydraulic motor 2 is a combination of a variable hydraulic motor and another variable hydraulic motor. The variable hydraulic pump 1 is connected to The combined hydraulic motors 2 are connected, and the combined hydraulic motors 2 provide driving force for the rear wheels of the motor grader. This hydraulic travel driving device of the present embodiment is directly connected with the driving axle 3 of the grader, and the universal transmission mechanism 6 of the grader is removed, the output power loss is reduced, and the structure of the four-wheel drive device of the grader is more compact. Simple, reducing production costs. Other components and the coupling relationship of the components are the same as in Embodiment 1.

Embodiment 3

[0019] In Embodiments 1 and 2, the combined hydraulic motor 2 is a combination of a quantitative hydraulic motor and a quantitative hydraulic motor. The variable hydraulic pump 1 communicates with the combined hydraulic motor 2 through a conduit, and the combined hydraulic motor 2 is the motor grader. The rear wheels provide drive. The other components and the coupling relationship of the components are the same as those in the corresponding embodiments.

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Abstract

A hydraulic running driver system for the ground leveling machine is composed of a variable hydraulic pump on the engine, and a (combined) hydraulic motor on the drive bridge or the drive mechanism linked with said drive bridge and communicated with said variable hydraulic pump. Its advantages are simple structure, wide speed regulation range, and high automation level.

Description

technical field [0001] The invention belongs to the technical field of paving and repairing machines, tools or auxiliary equipment for pavement of roads or other similar structures, and in particular relates to a hydraulic driving device for a grader. Background technique [0002] The grader is a kind of construction machinery that can be engaged in various operations. In construction engineering, the main operation of the grader is to level the ground on a large area of ​​ground. In addition, it can also perform operations such as trenching, scraping, and bulldozing. Motor graders are usually used in the construction of large-scale earthworks such as airports, railways, and highways, and are an important construction machine in mechanized construction. [0003] In recent years, the scope of use of motor graders has been expanding. With the continuous development of economic construction and science and technology, the scale of human transformation of nature is also increas...

Claims

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Application Information

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IPC IPC(8): E02F9/20E02F3/76
Inventor 赵铁栓
Owner CHANGAN UNIV
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