A new top shaft combination device

By designing a new type of jacking assembly, using solenoid valves and unloading valves to control the jacking oil input, and adding a front pump assembly to ensure continuous oil supply, the problems of automatic oil injection at specific speeds and oil supply when the lubrication system fails have been solved, thus protecting the rotor and bearings.

CN224396550UActive Publication Date: 2026-06-23ZHEJIANG JIETEYOU POWER MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JIETEYOU POWER MACHINERY
Filing Date
2025-06-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing jacking device cannot automatically supply jacking oil at a specific speed, and cannot supply oil when the lubrication system fails or is under maintenance, which may lead to wear of the rotor and bearings.

Method used

A novel jacking assembly was designed, comprising a main oil pump assembly, a control integrated block assembly, a filter assembly, a pre-pump assembly, and an outlet integrated block assembly. The input of jacking oil is controlled by solenoid valves and unloading valves, and the pre-pump assembly is allowed to draw oil directly from the main oil tank, ensuring continuous oil supply in case of failure.

Benefits of technology

It enables the rotor to automatically add top shaft oil at a specific speed, solving the oil supply problem when the lubrication system fails, protecting the rotor and bearings, and avoiding wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel top shaft combination device relates to top shaft device technical field, specifically is a kind of novel top shaft combination device, including stainless steel pipe, instrument accessory, still include main oil pump subassembly, control integrated block subassembly, filter subassembly, front pump subassembly, base, outlet integrated block subassembly, main oil pump subassembly with control integrated block subassembly, filter subassembly, front pump subassembly between, control integrated block subassembly and outlet integrated block subassembly between all be connected through stainless steel pipe, this novel top shaft combination device, by increasing solenoid valve and unloading valve, with solenoid valve interlock, control unloading valve on-off oil, solve the problem that rotor is automatically put into top shaft oil under certain speed, by increasing front pump subassembly, directly from main oil tank oil suction, by front pump subassembly and give top shaft main oil pump oil, solved the problem that top shaft main oil pump cannot be supplied with oil when lubricating oil system fails or overhauls.
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