Electric drive earthmover travelling driving device

A walking drive and electric motor technology, which is applied to power units, electric steering mechanisms, pneumatic power units, etc., can solve the problems of high cost and complex hydraulic system structure, and achieve low cost, high transmission efficiency, simple and compact structure. Effect

Inactive Publication Date: 2011-05-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the structure of the hydraulic system used by the electric drive bulldozer is relatively complicated and the cost is high

Method used

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  • Electric drive earthmover travelling driving device
  • Electric drive earthmover travelling driving device
  • Electric drive earthmover travelling driving device

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Embodiment Construction

[0021] The present invention is made up of engine 7, generator 6, power inverter 5, electric motor, two-way clutch assembly, differential steering mechanism, wherein motor is three, two-way clutch assembly is three groups, electric motor 4, power inverter 5 , generator 6 and engine 7 are connected in series, the first group of two-way clutch assembly is composed of gear 1, front clutch A, shaft I2, rear clutch B, gear 3 and motor 4, shaft I2 is fixedly connected with clutch A and clutch B respectively , and the right end of the shaft I2 is connected to the motor 4, the shaft II13 is parallel to the shaft I2, the sun gear 19, the sun gear 15 and the sun gear 8 are all fixedly connected to the shaft II13; the first group of two-way clutch assemblies are respectively controlled by the control system Combination or disengagement of clutch A and rear clutch B, when front clutch A is engaged, gear 1 meshes with planetary ring gear 22, at this time rear clutch B is in a disengaged sta...

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Abstract

The invention relates to an electric drive earthmover travelling driving device, which belongs to the technical field of engineering machinery and comprises an engine, a generator, a power inverter, three motors, three sets of bidirectional clutch assemblies and a differential steering mechanism, wherein the bidirectional clutch assemblies comprise front clutches and rear clutches; an output shaft of each motor is connected with an input shaft of a corresponding bidirectional clutch; the bidirectional clutch assemblies are connected with the differential steering mechanism; and each motor is connected with the generator. The power distribution in linear travelling and steering is controlled by adopting a frequency conversion driving technology through controlling the bidirectional clutches to be engaged and disengaged. The invention has few parts, a compact structure, high drive efficiency, simple control and low manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a new-type electric transmission bulldozer traveling drive device, which adopts three sets of two-way clutches, and utilizes frequency conversion drive and control technology to realize stepless steering of a differential steering mechanism. Background technique [0002] In the existing electric transmission bulldozer travel drive system, the general travel drive system is generally completed by two three-phase AC motors and a hydraulic motor. When the bulldozer is traveling in a straight line, it is driven by the two motors, and the hydraulic motor does not work at this time. . When turning, the hydraulic system is used to drive the hydraulic motor for differential steering. [0003] And self shortcoming is arranged in the above-mentioned traveling drive system. The use of a hydraulic system and a hydraulic motor for steering increases the cost of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/20B60K6/36B60K6/38B62D5/04
Inventor 孔德文李涛王宏菲
Owner JILIN UNIV
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