CN202657902U - 用于煤矿井下液压支架千斤顶的活塞杆 - Google Patents
用于煤矿井下液压支架千斤顶的活塞杆 Download PDFInfo
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- CN202657902U CN202657902U CN 201220296565 CN201220296565U CN202657902U CN 202657902 U CN202657902 U CN 202657902U CN 201220296565 CN201220296565 CN 201220296565 CN 201220296565 U CN201220296565 U CN 201220296565U CN 202657902 U CN202657902 U CN 202657902U
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CN 201220296565 CN202657902U (zh) | 2012-06-25 | 2012-06-25 | 用于煤矿井下液压支架千斤顶的活塞杆 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889381A (zh) * | 2012-10-31 | 2013-01-23 | 宁波培源电器制造有限公司 | 一种活塞杆 |
CN103737269A (zh) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | 一种包裹焊接加装防腐层液压支架立柱方法 |
CN109531068A (zh) * | 2018-12-17 | 2019-03-29 | 郑州煤矿机械集团股份有限公司 | 一种深孔活塞杆深孔与外圆同轴度控制方法 |
CN112323104A (zh) * | 2020-09-30 | 2021-02-05 | 平顶山平煤机煤矿机械装备有限公司 | 具有熔覆铜基合金的表面镀铬处理方法 |
-
2012
- 2012-06-25 CN CN 201220296565 patent/CN202657902U/zh not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102889381A (zh) * | 2012-10-31 | 2013-01-23 | 宁波培源电器制造有限公司 | 一种活塞杆 |
CN103737269A (zh) * | 2014-01-22 | 2014-04-23 | 淮南巨万实业有限责任公司 | 一种包裹焊接加装防腐层液压支架立柱方法 |
CN103737269B (zh) * | 2014-01-22 | 2016-02-24 | 淮南巨万实业有限责任公司 | 一种包裹焊接加装防腐层液压支架立柱方法 |
CN109531068A (zh) * | 2018-12-17 | 2019-03-29 | 郑州煤矿机械集团股份有限公司 | 一种深孔活塞杆深孔与外圆同轴度控制方法 |
CN109531068B (zh) * | 2018-12-17 | 2020-08-25 | 郑州煤矿机械集团股份有限公司 | 一种深孔活塞杆深孔与外圆同轴度控制方法 |
CN112323104A (zh) * | 2020-09-30 | 2021-02-05 | 平顶山平煤机煤矿机械装备有限公司 | 具有熔覆铜基合金的表面镀铬处理方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: ZMJ LU'AN XINJIANG MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHENGZHOU COAL MINING MACHINERY GROUP CO., LTD. Effective date: 20140520 |
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Free format text: CORRECT: ADDRESS; FROM: 450007 ZHENGZHOU, HENAN PROVINCE TO: 831100 CHANGJI HUI AUTONOMOUS PREFECTURE, XINJIANG UYGUR AUTONOMOUS REGION |
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TR01 | Transfer of patent right |
Effective date of registration: 20140520 Address after: 831100 Changji hi tech Industrial Development Zone, Changji Hui Autonomous Prefecture, the Xinjiang Uygur Autonomous Region (No. 11 science and technology Avenue) Patentee after: ZMJ Lu'an Xinjiang Machinery Co., Ltd. Address before: 450007 Huashan Road, Henan, China, No. 105, No. Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20170625 |