A mining dump truck lift cylinder shaft assembly

A technology for mining dump trucks and lifting cylinders, which is applied in the direction of tilted load-carrying vehicles, etc., can solve the problems of reducing the strength of the lifting cylinder shaft 2, complicated welding process, welding stress deformation, etc., so as to reduce welding risk and avoid direct welding. Welding, the effect of eliminating stretching deformation

Active Publication Date: 2016-05-25
DATONG ELECTRIC LOCOMOTIVE OF NCR
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This structure cancels the tension bolts, and uses medium-carbon alloy steel to prepare the lift cylinder shaft 2. Although this material has high strength, it also has a high carbon equivalent, so it is difficult to weld and the welding process is complicated. Any irregular operation during the welding process may cause cracks in the lift cylinder shaft 2; in addition, the heat-affected zone generated during direct welding of the lift cylinder shaft 2 will reduce the strength of the lift cylinder shaft 2 and cause welding Stress deformation, thereby reducing the dimensional accuracy and installation accuracy of the lift cylinder shaft 2

Method used

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  • A mining dump truck lift cylinder shaft assembly
  • A mining dump truck lift cylinder shaft assembly
  • A mining dump truck lift cylinder shaft assembly

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Embodiment 1

[0032] like image 3 As shown, the mine dump truck lift cylinder shaft assembly provided in this embodiment includes an end cover 1 , a lift cylinder shaft 2 , a lift cylinder support 3 and a gland 5 .

[0033] The lift cylinder support 3 in this embodiment has a shaft hole for fixing the lift cylinder shaft 2 . In this embodiment, the lifting cylinder support 3 is cast with medium carbon alloy steel, which is an integral casting structure, and its shaft hole is a through hole, so as to facilitate the sand cleaning of the casting structure and the discharge of chips during the subsequent machining process .

[0034] The middle part of the lift cylinder shaft 2 of this embodiment is provided with a shoulder ( image 3 shown at a), the shaft section of the lift cylinder on the shoulder side is installed in the shaft hole of the lift cylinder support 3, the lift cylinder shaft 2 and the lift cylinder support 3 The connection surface is a cylindrical surface; moreover, the lift...

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Abstract

The invention provides a lifting cylinder shaft assembly of a mining dump truck. The lifting cylinder shaft assembly of the mining dump truck comprises a lifting cylinder support, a lifting cylinder shaft, an end cover and a gland, wherein the lifting cylinder support is provided with a shaft hole, the lifting cylinder shaft is provided with a shaft shoulder, a shaft section, at one side of the shaft shoulder, of the lifting cylinder shaft is installed in the shaft hole of the lifting cylinder support, the end cover is arranged at the end of the shaft section, at the other side of the shaft shoulder, of the lifting cylinder shaft, and the gland is axially arranged on the shaft shoulder in a pressing mode and fixed to the lifting cylinder support. The lifting cylinder shaft assembly of the mining dump truck is simple in structure and easy to machine, and the lifting cylinder shaft is high in strength, not damaged easily, stable and reliable in axial fixation, high in size accuracy and installation accuracy, and easy to detach and replace.

Description

technical field [0001] The invention relates to mechanical technology, in particular to a lifting cylinder shaft assembly of a mining dump truck. Background technique [0002] Mining dump truck is a large off-road transport vehicle, which mainly operates in open-pit mines, hydropower projects, civil engineering and other places, and its main function is to load and unload ore and earthwork. The lifting cylinder is the main working part of the mining dump truck. It realizes the lifting and falling of the cargo box through the lifting cylinder shaft installed on the frame. Therefore, how to ensure the strength and reliability of the lifting cylinder shaft is very important . [0003] The lift cylinder shaft of a large tonnage mining dump truck is usually arranged outside the frame, one end of which is connected to the frame longitudinal beam, and the other end is connected to the lift cylinder through a sliding bearing. The lift cylinder shaft protrudes out of the frame and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60P1/16
Inventor 金俊权唐倩王家兵赵波
Owner DATONG ELECTRIC LOCOMOTIVE OF NCR
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