Anchoring rod drilling machine support hydraulic cylinder with reinforced connecting sleeve

By introducing a reinforced connecting sleeve and a sealing ring groove structure into the hydraulic cylinder of the anchor drilling rig support, the corrosion problem of the hydraulic cylinder caused by dust and corrosive liquids was solved, improving safety and reducing production costs.

CN224364153UActive Publication Date: 2026-06-16ZHENGMEIJI ZHIDING HYDRAULIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGMEIJI ZHIDING HYDRAULIC CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The hydraulic cylinders supporting anchor drilling rigs are prone to corrosion in dusty and corrosive liquid environments. The existing waterproof and dustproof structures are unreasonable, resulting in a low safety factor and high production costs.

Method used

The design features a reinforced connecting sleeve. The guide sleeve and cylinder have external threads on their outer circumferences and internal threads on their inner walls. The reinforced connecting sleeve is fitted into the joint area between the guide sleeve and the cylinder. Combined with the sealing ring groove and flange structure, it forms a tight fit, eliminating cavities and enhancing sealing performance.

Benefits of technology

It improves the safety factor of thin-walled cylinders, prevents dust and corrosive liquids from entering, reduces production costs, and extends the service life of hydraulic cylinders.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of anchor rod drilling machine support hydraulic cylinder with reinforcing connecting sleeve, including cylinder barrel, guide sleeve and reinforcing connecting sleeve;The inner end of the guide sleeve is sealed and packed in one end of the cylinder barrel, the outer periphery of the guide sleeve and the outer periphery of one end of the cylinder barrel are respectively provided with external thread, and the external thread of two places is spliced and connected;The inner wall of the reinforcing connecting sleeve is provided with internal thread for use with the external thread of two places, and the reinforcing connecting sleeve is threaded on the area where the guide sleeve and the cylinder barrel are spliced.The anchor rod drilling machine support hydraulic cylinder can improve the safety factor of thin-walled cylinder barrel, eliminate the cavity between the reinforcing connecting sleeve and the guide sleeve, and prevent the hydraulic cylinder from rusting.
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