600th卸船机垂直臂驱动部分结构设计(8)

洛阳理工学院毕业设计（论文）

参考文献

[1] 机械工业部北京起重运输机械研究所. DTⅡ型固定式带式输机 设计选用手册. 北京: 冶金工业出版社.1994

[2] 吴明龙. 《新编煤矿常用机械设备选型设计使用手册》. 上海: 中国矿业大学出版社. 2002

[3] 中华人民共和国煤炭工业部. 中华人民共和国国家标准和行业标准. 2006

[4] 成大先. 机械设计手册 （第一、二、三、四、五卷）.北京: 化学工业出版社. 2008

[5] 徐灏. 机械设计手册（第一、二、三、四卷），北京: 机械工业出版社.2008 [6] 沈阳起重运输机械厂. DTS型通用带式输送机设计选用手册.1989年 [7] 中华人民共和国国家质量监督检验检疫总局. 中华人民共和国国家标准《机械制图》.2006

[8] 国家质量技术监督局. 中华人民共和国国家标准《技术制图》 [9] 陈维键 齐秀丽. 矿井运输机提升设备，中国矿业大学出版社.1995 [10] 运输机械设计选用手册编组委运输机械设计选用手册（上、下）.北京: 化学工业出版社.1999.1

[11] 王传海,张卫国.带式输送机断带及飞车制动保护装置[J].矿业安全与环保.北京：机械工业出版社 2003.3

[12] 史志远,朱真才. 带式输送机断带保护装置分析[J].煤矿机械.上海:中国矿业大学出版社. 2001

[13] 陈炳耀. 祁开阳. 带式输送机输送带与滚筒之间的打滑分析[J].煤矿机械. 上海:中国矿业大学出版社.2003

[14] 熊云昌. 机械制造技术. 河南科学技术出版社. 2006 [15] 张建中. 机械设计基础. 高等教育出版社. 2007 [16] 廖念钊. 互换性与技术测量. 中国计量出版社.2006

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洛阳理工学院毕业设计（论文）

外文资料翻译

Ergonomics of grab unloaders for bulk materials handling

Alan J. Courtney!, Alan H.S. Chan

\, Department of Industrial and Manufacturing Systems Engineering, University of

Hong Kong, Pokfulam, Hong Kong

\Department of Manufacturing Engineering and Engineering Management, City

University of Hong Kong, Tat Chee Avenue, Hong Kong

Received 15 August 1996; received in revised form 21 January 1997; accepted 15

July 1997

Abstract

An ergonomic study of operator cabs for grab unloaders is presented herein. Our results demonstrated that the drivers adopted poor postures, partially owing to the basic geometry of the situation and partially because they used only the central lower front window for downward vision and control boxes obstructed vision. These problems have been exacerbated by introducing extremely large bulk carriers that have a wider hold than the previous ships used. Relevance to industry

This study evaluated the workplace and workspace design of a cab of grab unloaders for bulk materials handling from an ergonomics perspective. Recommendations for improvements are also presented. ( 1999 Elsevier Science B.V. All rights reserved.

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洛阳理工学院毕业设计（论文）

Keywords: Bulk materials handling; Overhead cab design; Ergonomics 1. Introduction

The bulk unloaders vestigated herein have a grab which removes coal from ships moored at a jetty and, then, transfers the coal to hoppers which control the ?ow onto a conveyor belt. The operators have complained of various aches and pains presumably owing to the shortcomings in the cab design. The drivers of the unloaders sit in a cabin which runs along a jib extended out over the ship's hold. The task involves looking almost vertically down into the ship's hold to load the grab and then lift the loaded grab and transfer it to a hopper which is slightly below eye level to the right of the driver. This study evaluated the cab from an ergonomics perspective. Recommendations for improvements are also presented. The unloaders studied herein were installed about seven years ago. Courtney and Evans (1993) examined much older grab unloader cabs, concluding that because the drivers inclined the trunk forward up to 40o and the neck up to 70o from the vertical direction, the static loadings on the back and neck were likely to cause problems. 2. Method

Information about general operation of the unloaders was obtained from the company. A literature search was also conducted for cranes (Burdorf and Zondervan, 1990; Gustafson-Soderman, 1987), seating (Anderson, 1986) and posture (Buckle et al., 1986). Sixteen grab unloader operators were interviewed using a questionnaire covering

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洛阳理工学院毕业设计（论文）

work space, seat, controls, displays, visibility and lighting, postural functional load, thermal environment, noise and vibration, work schedules and general factors.Cab dimensions of the unloaders were recorded permitting reconstruction of the cabin layout, thereby allowing the solutions to be tested without the need for access to the unloader. Geometrical configurations for the unloader and dimensions for the largest ships were combined to deTne the visual requirements of the task . In addition, the postures adopted and sequences of operation were recorded by still and video photography. One-quarter scale manikins and drawings of existing and proposed cab layout were also used to predict postural reactions to changes in the cab. 3. Results

General layout and detailed drawings of the cab were prepared. The control at the front of the right console opens and closes, as well as raises and lowers the grab. The control at the front of the left console traverses the grab along the jib. Behind this traverse control is a third control that operates the unloader's movement along the jetty (forward and back). The drivers did not complain about the physical layout of the controls. The grab has a semi-automatic system. However, because the drivers found it difficult to set-up, they preferred using the manual mode. Although the drivers did not complain, it was di|cult to get in and out of the seat. The only complaint about the adjustability of the seat was that 31% of the drivers would like some lateral adjustment. One driver thought the seat was too soft; otherwise, all the drivers found the seat

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洛阳理工学院毕业设计（论文）

satisfactory. Nevertheless, 94% of the driv …… 此处隐藏：4784字，全部文档内容请下载后查看。喜欢就下载吧 ……