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An off-highway mining dump truck hydraulic steering system

A mining dump truck and steering system technology, applied in the direction of fluid steering mechanism, etc., can solve the problem that it is difficult to meet the speed requirements of the steering system of large-tonnage mining dump trucks, and achieve the effect of increasing the output flow and meeting the speed requirements

Active Publication Date: 2018-01-12
XUZHOU XCMG MINING MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the increasing load capacity of this type of vehicle, the current configuration of a single steering gear plus a flow amplifier is difficult to meet the speed requirements of the steering system of a large-tonnage mining dump truck

Method used

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  • An off-highway mining dump truck hydraulic steering system

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing. In the drawings, the same or similar elements are indicated by the same reference numerals, and the drawings are only schematic representations, which are not intended to describe specific parameters of the invention.

[0013] Such as figure 1 As shown, a hydraulic steering system for non-highway mining dump trucks includes hydraulic oil tank 1, oil suction filter 2, oil return filter 3, constant pressure variable pump 4, pressure oil filter 5, steering valve group 6, energy storage Device 7, flow amplifier I9.1, flow amplifier II9.2, right steering cylinder 10, left steering cylinder 11, steering gear I12.1, steering gear II12.2, transfer mechanism 13, direction control mechanism 14; constant pressure variable The pump 4 is connected to the hydraulic oil tank 1 through the oil suction filter 2, absorbs the zero-pressure hydraulic oil from the hydraulic oil tank 1, and conve...

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Abstract

The invention discloses a hydraulic steering system for an off-road mining dump truck. The hydraulic steering system comprises a hydraulic oil tank, an oil suction filter, an oil return filter, a constant-pressure variable pump, an oil pressure filter, a steering valve bank, an energy accumulator, a flow amplifier I, a flow amplifier II, a right steering cylinder, a left steering cylinder, a steering gear I, a steering gear II, a transfer mechanism and a direction control mechanism. Ports P and ports LS of the flow amplifier I and the flow amplifier II are respectively connected to ports P and ports LS of the steering gear I and the steering gear II, ports L and ports R of the flow amplifier I and the flow amplifier II are respectively connected to ports R and ports L of the steering gear I and the steering gear II, and input shafts of the steering gear I and the steering gear II are respectively connected with the direction control mechanism by the transfer mechanism. The hydraulic steering system has the advantages that output flow can be optimally doubled, and accordingly rotational speed requirements of the hydraulic steering system of the large-tonnage mining dump truck can be met.

Description

technical field [0001] The invention relates to a steering system, in particular to a hydraulic steering system of an off-highway mining dump truck, which belongs to the technical field of engineering machinery hydraulic control. Background technique [0002] Off-highway mining dump trucks (off-highway mining dump trucks) refer to a special load for short-distance transportation used to complete the tasks of rock and earth stripping and ore transportation on special roads such as open-pit mines or large civil construction sites. vehicle. Widely used in various open-pit mines, hydropower projects, railway and highway construction projects and large-scale construction projects. Due to the characteristics of heavy load (currently up to 450t) and harsh working road conditions, the vehicle generally uses a hydraulic steering system to realize vehicle steering control. In view of the increasing load capacity of this type of vehicle, the current configuration of a single steering...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/18
CPCB62D5/18
Inventor 孙炳玉袁自成孟庆勇郭振华李涛姚锡江鲁东东朱孝左惠强朱新波
Owner XUZHOU XCMG MINING MACHINERY CO LTD
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