Sliding lubricating oil for large components and its blending method and blending device

A technology of large components and lubricating oil, applied in the direction of lubricating compositions, petroleum industry, underwater structures, etc., can solve the problem of easy wear and deformation of sliding base surfaces, reduce the friction coefficient of large components, and prone to failure of power equipment, etc. problems, to avoid frequent failures of power equipment, reduce friction coefficient, and meet the effect of friction coefficient

Active Publication Date: 2020-11-24
CCCC FOURTH HARBOR ENG CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that in the prior art, during the sliding process of large components, the power equipment used to provide the power source is prone to failure due to the excessive friction coefficient, and the sliding base surface is prone to wear and deformation. The problem is to provide a large component sliding lubricating oil and its deployment method and deployment device. The lubricating oil of this invention can effectively reduce the friction coefficient of large components when sliding, so that when large components slide, they can avoid power generation of power equipment. Failure, at the same time, effectively protect the two friction surfaces of the two pairs of sliding, and reduce the wear and deformation between the friction surfaces

Method used

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  • Sliding lubricating oil for large components and its blending method and blending device
  • Sliding lubricating oil for large components and its blending method and blending device
  • Sliding lubricating oil for large components and its blending method and blending device

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Experimental program
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Effect test

Embodiment 1

[0053] The sliding lubricating oil for large components includes the following components by weight percentage: 70-77% of engine oil, and 23-30% of molybdenum sulfide.

[0054] Due to the large size and weight of large components, molybdenum sulfide is used as a component. Molybdenum sulfide is suitable for high-pressure environments. Molybdenum disulfide is made of natural molybdenum concentrate powder after chemical purification and changes in molecular structure. Solid powder, when added to the engine oil, can form an alternate state of non-bonding, which greatly increases the lubricity of the engine oil, and forms a protection for the skateboard, prolonging the service life of the skateboard.

[0055] After molybdenum sulfide is processed by supersonic airflow crushing, its particle size can reach 325-2500 mesh, its microparticle hardness is 1-1.5, and its friction coefficient is 0.05-0.1. It can be added to engine oil to play a better role. Anti-friction effect.

[0056]...

Embodiment 2

[0066] In this embodiment, the matching ratio of engine oil and molybdenum sulfide corresponding to the lowest friction coefficient is adopted: engine oil 75% molybdenum sulfide 25%, and the lubricating oil of this mixing ratio is applied to the push-up of the immersed pipe joint of the Hong Kong-Zhuhai-Macao Bridge. Test the push-up friction coefficients of three pipe sections E23, E25, and E27. The length of the pipe section is 180m, and the weight is about 72,000 tons. Each pipe section is composed of 8 sections with a length of 22.5m, including S1, S2, S3, S4, S5, S6, S7 and S8, the segment width is 37.95m, and the height is 11.4m. The first segment to be poured is S8. After S8 is poured, it will be pushed, and then S7 will be poured at the end of the S8 pipe joint. , after the pouring of S7 is completed, it is pushed together with S8, and so on, until the last pipe section S1 is poured, and all the pipe sections are pushed into place, that is, the big push.

[0067] After...

Embodiment 3

[0069] Such as figure 1 As shown, the deployment method of sliding lubricating oil for large components includes the following steps:

[0070] a. Determine the composition of the sliding lubricating oil;

[0071] b. Prepare sliding lubricating oil, weigh each component of lubricating oil according to different weight ratios, and obtain different ratios of sliding lubricating oil;

[0072] c. Calculate the friction force and friction coefficient. On the same test platform, measure and calculate the maximum static friction force of the slide plate lubricated by the lubricating oil with different proportions obtained in step b respectively, and obtain the relevant friction coefficient. When measuring and calculating the slides lubricated by lubricating oil of different ratios, the calculations are carried out for each situation in which the number of slides is increased sequentially;

[0073] d. Comparing the friction coefficients of lubricating oils under different proportions...

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Abstract

The invention relates to the technical field of immersed tube tunnels, and concretely relates to lubricating oil for large-scale component slippage as well as a preparation method and preparation device of the lubricating oil. The lubricating oil for the large-scale component slippage comprises 67-77% by weight of engine oil and 23-33% by weight of molybdenum sulfide, the lubricating oil makes a large-scale component safe in a whole slippage process, power equipment is avoided from breakdown, abrasion deformation is avoided, and the service life is prolonged; through adopting the components with the above percentages, the lubricating oil can make the friction coefficient of a large-scale component with over ten thousands of tons controlled within a range required by design, and the large-scale component is transferred successfully; the lubricating effect of the lubricating oil with the above ratio achieves an optimum effect, in the preparation method, measure calculation is performed by adopting coating sliding plates and supporting face plates with lubricating oil with different ratios, and adopting a manner of increasing the number of the sliding plates in sequence, so that a ratio of lubricating oil with maximum static friction force to lubricating oil with a minimum friction coefficient is measured and calculated, the purposes of simulating and pushing large-scale components with different weights are achieved, and the prepared lubricating oil is suitable for occasions of the large-scale component slippage.

Description

technical field [0001] The invention relates to the technical field of immersed tube tunnels, in particular to a sliding lubricating oil for large components, a blending method, and a blending device. Background technique [0002] The subsea immersed tube tunnel of the Hong Kong-Zhuhai-Macao Bridge Island Tunnel Project has a total length of 5664m and is composed of 33 pipe sections. A single standard pipe section is 180m long and weighs about 72,000 tons. Each pipe section is composed of 8 sections with a length of 22.5m. , the weight of each section also reaches thousands of tons. The pipe section adopts the cross-section form of two holes and one pipe gallery, with a width of 37.95m and a height of 11.4m. [0003] The segment matching prefabrication method is adopted for the prefabrication of pipe joints: the construction of 1# segment is completed after pouring the pedestal, and after the concrete of 1# segment reaches the strength of pushing and moving, the pipe joint i...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C10M125/22E02D29/073C10N30/06
CPCC10M125/22C10M2201/066C10N2030/06E02D29/073C10N2020/06
Inventor陈伟彬张文森董政赵国臻王斌刘远林
OwnerCCCC FOURTH HARBOR ENG CO LTD