Greases for elevator slings, elevator slings and traction elevators

A grease, sling technology, applied in lubricating compositions, textile cables, transportation and packaging, etc., can solve problems such as pressure rise, wear increase, sling load increase, etc.

Active Publication Date: 2021-06-15
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, by increasing the contact surface pressure, there is also concern about an increase in wear caused by contact between the sling and the sheave
[0005] Here, the thinning of the sling increases the contact surface pressure of the contact portion, and decreases the tensile strength of the sling
Although the contact surface pressure increases by weighting the car, etc., the load on the sling also increases, so it is necessary to make adjustments considering the safety ratio of the sling
In addition to reducing the size of the device, research has also been carried out on reducing the weight of the car, etc. from the viewpoint of energy saving and long life, and there are many technical restrictions on the method of increasing the contact surface pressure.

Method used

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  • Greases for elevator slings, elevator slings and traction elevators
  • Greases for elevator slings, elevator slings and traction elevators
  • Greases for elevator slings, elevator slings and traction elevators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0126] Hereinafter, the present invention will be specifically described using examples and comparative examples, but the present invention is not limited to these examples.

[0127] (1) Evaluation method of slime oil and grease

[0128] (1-1) Determination of Sports viscosity, consistency and dropout of slime oil

[0129] Sports viscosity (40 ° C, 100 ° C) was determined based on JIS standards (JIS K2283). Further, the consistency of the grease (no mixed consistency, mixing consistency) and droppoint are determined based on the JIS standard (JIS K2220). In addition, the viscosity level is evaluated based on the value of the movement viscosity of the slim oil, based on ISO (International Organization for Standardization, International Standardization) 3448.

[0130](1-2) Determination of traction coefficient

[0131] Traction coefficient measurement is carried out using a Ball on disk (ball) test device. This test device has a mechanism that rotates between the ball and the bilate...

reference example 7

[0183] (2-10) Reference Example 7: Synthesis of Synthetic Oil 11

[0184] Typete olene 1 kg, cyclohexane 200 ml, 1,2-diethoxyethane 100 ml and a cation exchange resin 100 g as a catalyst were added to 60 ° C for 6 hours at 60 ° C for 6 hours. After the reaction, cooled with a water bath at 20 ° C, and the solid catalyst was filtered. The reaction solution is added to the 1L autoclave by the rotary evaporator, 500 g of the reaction liquid is added to the 1L autoclave, and the nickel catalyst for hydrogenation is added, and after seating, it is 50 kg / cm by hydrogen pressure. 2 (G), 120 ° C for 4 hours to hydrogenate, naturally cooled to room temperature, and filter out the catalyst.

[0185] The resulting product was analyzed by gel filtration chromatography, resulting in the formation of dimer components (synthetic oil 11). Decompression distillation was performed on the total reaction mixture and only the dimer component was separated.

[0186] (2-11) Reference Example 8: Synthe...

Embodiment 1

[0191] Examples 17 to 26 modify the synthetic oil of Example 1 to other polycyclic alkane compounds (synthetic oils 6 to 15). The composition and evaluation results of the base oil are shown in Table 4. The high traction coefficient and wear resistance were displayed in the same manner as in Example 1.

[0192] [Table 4]

[0193]

[0194] (2-14) Reference Example 9: Production of Thickeners

[0195] In a 3 L of the glass reactive container, 300 g of ethylenediamine 30g and 12-hydroxyglyctaryic acid were dissolved in meta xylene, and 15 g of ferric chloride (III) (III) hexahydrate as a catalyst was added, and heated and refluxed for 10 hours. After filtering out the product, the product was separated and refined by recrystallization.

[0196] The resulting product was analyzed by gel filtration chromatography, resulting in a fatty acid diamine (N, N'-ethylene-dibly-12-hydroxy stetonlamide).

[0197] (2-15) Examples 27 to 33 and Comparative Example 2 of the production and evaluati...

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Abstract

The present invention provides a lubricating fat for elevator cables that can take into account the characteristics of high traction characteristics and high abrasion resistance, and then closely consolidate with the surface of the cable.Coffee traction elevator.The elevator cable of the present invention is lubricated with lubricating lubricating lubricating lubricating lubricated lubricating cables for the lubricating lubricated lubricated lubricant. The elevator cable has a steel cable and a lubricant layer on the surface of the above steel cable.The characteristics of lubricating fat are formed by lubricating fat containing basic oils. This basic oil contains hydrocarbons and cyclumane hydrocarbons. 2 The liquid or solid of / s contains the above -mentioned hydrocarbon components with 30 % to 90 % of the above -mentioned lubricating fat.

Description

Technical field [0001] The present invention relates to grease, elevator sling, and traction elevators for elevator sling. Background technique [0002] In recent years, elevators in the middle and low-rise buildings are using the traction elevator in the mechanical room. Due to the mechanical chamber, the traction elevator is improved, and the degree of freedom of the design layout of the elevator is improved can also be disposed in a narrow space that is difficult to set. Therefore, popularization is obtained when the new and update of the device. [0003] The elevator is sling (hereinafter referred to as "Elevator Rope"), for example, a sling specified in JIS G 3525. The elevator slings are all stranded strands around 6 or 8 strands around the core formed by the synthetic fibers or natural fibers, and they strand their structure (steel cable, Wire Rope). In addition, the strand is twisted by a plurality of steel wires. When the tension is applied to the sling, in order to supp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M171/02B66B7/12C10M105/04C10M107/08C10M115/02C10M115/08C10M143/00C10N20/02C10N40/32C10N50/10
CPCB66B7/12C10M143/00C10M171/02C10M105/04C10M107/08C10M115/02C10M115/08D07B1/144D07B2501/2007B66B7/1261C10N2050/10
Inventor 布重纯太田亮大部芳树中山真人安部贵
Owner HITACHI LTD
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