标准解读

GB/T 44259-2024是一项针对土方机械中高原隧道用纯电动液压挖掘机的技术标准。此标准具体规定了此类挖掘机的设计、生产、试验方法以及检验规则等要求，旨在确保设备在高海拔、低气压的极端环境下仍能保持高效稳定的工作性能，同时减少对环境的影响。

标准适用范围

该标准适用于工作环境海拔高度超过2000米，用于高原隧道施工的纯电动驱动、液压系统操作的挖掘机。这些挖掘机主要用于挖掘、装载、平整以及其他类似作业。

关键技术要求

  1. 高原适应性：规定了挖掘机需具备的特定高原适应性设计，包括但不限于电动动力系统的高海拔能量输出稳定性、电池组在低温下的效能与寿命保障、以及电气元件的绝缘加强措施，以防止高原环境下空气稀薄导致的放电效率下降和绝缘性能减弱。

  2. 纯电动驱动系统：详细说明了纯电动驱动系统的性能指标，如电机功率、电池容量、充电效率及续航能力，要求在保证作业效率的同时，实现零排放，符合环保要求。

  3. 液压系统：规定了液压系统应采用高效、低能耗设计原则，确保在高海拔工况下，液压元件能稳定工作，减少泄露，提高系统整体响应速度和控制精度。

  4. 安全规范：明确了挖掘机在设计和使用中必须遵循的安全标准，包括防爆、防火、电气安全及操作人员保护措施，确保在特殊环境下作业的安全性。

  5. 环境适应性测试：制定了详尽的高原环境适应性测试方法，包括高低温循环试验、低气压模拟试验等，以验证设备在极端条件下的可靠性和稳定性。

  6. 维护与保养：提供了维护保养的指导原则，确保设备能在高原特殊环境下得到恰当的维护，延长使用寿命并维持高效运行。

实施意义

该标准的出台为高原隧道建设中的纯电动液压挖掘机提供了统一的技术指导和质量评价体系，促进了工程机械行业的技术创新和绿色发展，同时保障了高原施工项目的顺利进行和作业人员的安全健康，对推动我国乃至全球高原地区基础设施建设的可持续发展具有重要意义。


如需获取更多详尽信息，请直接参考下方经官方授权发布的权威标准文档。

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文档简介

ICS53.100

CCSP97

中华人民共和国国家标准

GB/T44259—2024

土方机械高原隧道用纯电动

液压挖掘机

Earth-movingmachinery—Batteryelectrichydraulicexcavatorfor

plateautunnels

2024⁃07⁃24发布2024⁃07⁃24实施

国家市场监督管理总局

国家标准化管理委员会发布

GB/T44259—2024

目次

前言··························································································································Ⅲ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································2

4参数·······················································································································3

5要求·······················································································································3

6试验方法·················································································································6

7检验规则···············································································································11

8标志、包装、运输和贮存·····························································································13

附录A（资料性）电动挖掘机主要参数············································································15

附录B（资料性）电动挖掘机测试记录表·········································································16

参考文献····················································································································19

图1高压警告标记·······································································································5

表1其他性能试验方法·································································································9

表2失效分类及评定准则····························································································10

表3电动挖掘机检验项目表·························································································12

表A.1电动挖掘机主要参数表······················································································15

表B.1液压缸移动速度测定记录表·················································································16

表B.2回转速度试验记录表··························································································16

表B.3回转制动试验记录表··························································································17

表B.4防水试验记录表································································································17

表B.5涉水试验记录表································································································17

表B.6热平衡测试记录表·····························································································18

表B.7换电试验记录表································································································18

Ⅰ

GB/T44259—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国机械工业联合会提出。

本文件由全国土方机械标准化技术委员会（SAC/TC334）归口。

本文件起草单位：徐州徐工挖掘机械有限公司、山东临工工程机械有限公司、徐州市检验检测中

心、厦门厦工机械股份有限公司、三一重机有限公司、天津工程机械研究院有限公司、山河智能装备股

份有限公司、江苏徐工国重实验室科技有限公司、雷沃重工集团有限公司、中铁十四局集团有限公司、

中国十七冶集团有限公司、中铁十四局集团装备有限公司、中铁二十二局集团有限公司、中铁工程服务

有限公司、太原科技大学、中铁五局集团贵州工程有限公司。

本文件主要起草人：董玉忠、张建永、孙峰、郑初源、崔会喜、吴红丽、郝鹏、杨超、张凯、李庆民、

黄金坤、李东升、刘自明、黄斌、马立峰、夏真德、宋吉、郭凤艳、金仁才、邓启华。

Ⅲ

GB/T44259—2024

土方机械高原隧道用纯电动

液压挖掘机

1范围

本文件规定了高原隧道用纯电动液压挖掘机的参数、要求、检验规则、标志、包装、运输和贮存，描

述了相应的试验方法。

本文件适用于高原环境隧道工况使用的运行能量完全由机载可充电储能系统提供，由电机驱动的

最大工作电压为B级电压的液压挖掘机的制造和检测。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于

本文件。

GB3838—2002地表水环境质量标准

GB/T4208外壳防护等级（IP代码）

GB/T5226.1机械电气安全机械电气设备第1部分：通用技术条件

GB/T6572土方机械液压挖掘机术语和商业规格

GB/T7586—2018土方机械液压挖掘机试验方法

GB/T8419土方机械司机座椅振动的实验室评价

GB/T8499土方机械测定重心位置的方法

GB/T8595土方机械司机的操纵装置

GB/T13332土方机械液压挖掘机和挖掘装载机挖掘力的测定方法

GB/T14039—2002液压传动油液固体颗粒污染等级代号

GB/T14711中小型旋转电机通用安全要求

GB/T14848—2017地下水质量标准

GB/T16935.1—2023低压供电系统内设备的绝缘配合第1部分：原理、要求和试验

GB/T16937土方机械司机视野试验方法和性能准则

GB/T17921土方机械座椅安全带及其固定器性能要求和试验

GB18384—2020电动汽车安全要求

GB/T18488电动汽车用驱动电机系统

GB/T18826工业用1，1，1，2—四氟乙烷（HFC⁃134a）

GB/T19929土方机械履带式机械制动系统的性能要求和试验方法

GB/T19930土方机械小型挖掘机倾翻保护结构的试验室试验和性能要求

GB/T19930.2土方机械挖掘机保护结构的实验室试验和性能要求第2部分

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