標準解讀

GB/T 44259-2024是一項針對土方機械中高原隧道用純電動液壓挖掘機的技術(shù)標準。此標準具體規(guī)定了此類挖掘機的設計、生產(chǎn)、試驗方法以及檢驗規(guī)則等要求，旨在確保設備在高海拔、低氣壓的極端環(huán)境下仍能保持高效穩(wěn)定的工作性能，同時減少對環(huán)境的影響。

標準適用范圍

該標準適用于工作環(huán)境海拔高度超過2000米，用于高原隧道施工的純電動驅(qū)動、液壓系統(tǒng)操作的挖掘機。這些挖掘機主要用于挖掘、裝載、平整以及其他類似作業(yè)。

關(guān)鍵技術(shù)要求

  1. 高原適應性：規(guī)定了挖掘機需具備的特定高原適應性設計，包括但不限于電動動力系統(tǒng)的高海拔能量輸出穩(wěn)定性、電池組在低溫下的效能與壽命保障、以及電氣元件的絕緣加強措施，以防止高原環(huán)境下空氣稀薄導致的放電效率下降和絕緣性能減弱。

  2. 純電動驅(qū)動系統(tǒng)：詳細說明了純電動驅(qū)動系統(tǒng)的性能指標，如電機功率、電池容量、充電效率及續(xù)航能力，要求在保證作業(yè)效率的同時，實現(xiàn)零排放，符合環(huán)保要求。

  3. 液壓系統(tǒng)：規(guī)定了液壓系統(tǒng)應采用高效、低能耗設計原則，確保在高海拔工況下，液壓元件能穩(wěn)定工作，減少泄露，提高系統(tǒng)整體響應速度和控制精度。

  4. 安全規(guī)范：明確了挖掘機在設計和使用中必須遵循的安全標準，包括防爆、防火、電氣安全及操作人員保護措施，確保在特殊環(huán)境下作業(yè)的安全性。

  5. 環(huán)境適應性測試：制定了詳盡的高原環(huán)境適應性測試方法，包括高低溫循環(huán)試驗、低氣壓模擬試驗等，以驗證設備在極端條件下的可靠性和穩(wěn)定性。

  6. 維護與保養(yǎng)：提供了維護保養(yǎng)的指導原則，確保設備能在高原特殊環(huán)境下得到恰當?shù)木S護，延長使用壽命并維持高效運行。

實施意義

該標準的出臺為高原隧道建設中的純電動液壓挖掘機提供了統(tǒng)一的技術(shù)指導和質(zhì)量評價體系，促進了工程機械行業(yè)的技術(shù)創(chuàng)新和綠色發(fā)展，同時保障了高原施工項目的順利進行和作業(yè)人員的安全健康，對推動我國乃至全球高原地區(qū)基礎設施建設的可持續(xù)發(fā)展具有重要意義。


如需獲取更多詳盡信息，請直接參考下方經(jīng)官方授權(quán)發(fā)布的權(quán)威標準文檔。

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ICS53.100

CCSP97

中華人民共和國國家標準

GB/T44259—2024

土方機械高原隧道用純電動

液壓挖掘機

Earth-movingmachinery—Batteryelectrichydraulicexcavatorfor

plateautunnels

2024?07?24發(fā)布2024?07?24實施

國家市場監(jiān)督管理總局

國家標準化管理委員會發(fā)布

GB/T44259—2024

目次

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

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語和定義··············································································································2

4參數(shù)·······················································································································3

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

6試驗方法·················································································································6

7檢驗規(guī)則···············································································································11

8標志、包裝、運輸和貯存·····························································································13

附錄A（資料性）電動挖掘機主要參數(shù)············································································15

附錄B（資料性）電動挖掘機測試記錄表·········································································16

參考文獻····················································································································19

圖1高壓警告標記·······································································································5

表1其他性能試驗方法·································································································9

表2失效分類及評定準則····························································································10

表3電動挖掘機檢驗項目表·························································································12

表A.1電動挖掘機主要參數(shù)表······················································································15

表B.1液壓缸移動速度測定記錄表·················································································16

表B.2回轉(zhuǎn)速度試驗記錄表··························································································16

表B.3回轉(zhuǎn)制動試驗記錄表··························································································17

表B.4防水試驗記錄表································································································17

表B.5涉水試驗記錄表································································································17

表B.6熱平衡測試記錄表·····························································································18

表B.7換電試驗記錄表································································································18

Ⅰ

GB/T44259—2024

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔識別專利的責任。

本文件由中國機械工業(yè)聯(lián)合會提出。

本文件由全國土方機械標準化技術(shù)委員會（SAC/TC334）歸口。

本文件起草單位：徐州徐工挖掘機械有限公司、山東臨工工程機械有限公司、徐州市檢驗檢測中

心、廈門廈工機械股份有限公司、三一重機有限公司、天津工程機械研究院有限公司、山河智能裝備股

份有限公司、江蘇徐工國重實驗室科技有限公司、雷沃重工集團有限公司、中鐵十四局集團有限公司、

中國十七冶集團有限公司、中鐵十四局集團裝備有限公司、中鐵二十二局集團有限公司、中鐵工程服務

有限公司、太原科技大學、中鐵五局集團貴州工程有限公司。

本文件主要起草人：董玉忠、張建永、孫峰、鄭初源、崔會喜、吳紅麗、郝鵬、楊超、張凱、李慶民、

黃金坤、李東升、劉自明、黃斌、馬立峰、夏真德、宋吉、郭鳳艷、金仁才、鄧啟華。

Ⅲ

GB/T44259—2024

土方機械高原隧道用純電動

液壓挖掘機

1范圍

本文件規(guī)定了高原隧道用純電動液壓挖掘機的參數(shù)、要求、檢驗規(guī)則、標志、包裝、運輸和貯存，描

述了相應的試驗方法。

本文件適用于高原環(huán)境隧道工況使用的運行能量完全由機載可充電儲能系統(tǒng)提供，由電機驅(qū)動的

最大工作電壓為B級電壓的液壓挖掘機的制造和檢測。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于

本文件。

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GB/T4208外殼防護等級（IP代碼）

GB/T5226.1機械電氣安全機械電氣設備第1部分：通用技術(shù)條件

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GB/T7586—2018土方機械液壓挖掘機試驗方法

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GB/T14039—2002液壓傳動油液固體顆粒污染等級代號

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GB18384—2020電動汽車安全要求

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