Metal rope and lubricant

Patent metadata

Field	Value
Publication number	US-9909255-B2
Application number	US-201213589555-A
Country	US
Kind code	B2
Filing date	Aug 20, 2012
Priority date	May 20, 2010
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

The object of the invention is a traction sheave elevator and a rope that contains metal as a load-bearing material, such as the suspension rope of an elevator, which rope comprises at least one or more strands laid from metal wires and which rope is lubricated with a lubricant. Another object is the use of the aforementioned lubricant for lubricating the rope. The lubricant comprises at least oil and thickener, which thickener in the lubricant comprises at least 10% or more of the mass of the lubricant.

First claim

The invention claimed is:

1. A rope containing metal as a load-bearing material, the rope comprising:
at least one strand laid from metal wires; wherein
the rope is lubricated with a lubricant including at least oil and thickener, the thickener being greater than 65% of the mass of the lubricant, and
the thickener contains at least one of lithium, lithium complex, calcium, calcium complex, calcium carbonate, gypsum, talcum, calcite, fluorite or apatite, and a compound containing calcium.

2. The rope according to claim 1 , wherein the oil is in an amount greater than 15% and less than 35% of the mass of the lubricant.

3. The rope according to claim 2 , wherein the oil is in an amount greater than 20% and less than 30% of the mass of the lubricant.

4. The rope according to claim 1 , wherein the thickener is in the amount of greater than 65% and less than about 85% of the mass of the lubricant.

5. The rope according to claim 1 , wherein the metal wires of the rope are steel wires and the thickener includes one or more solid additives of a material that is softer than the steel wires of the rope.

6. The rope according to claim 1 , wherein the lubricant of the rope contains, in addition to the oil and the thickener, a binding agent in the amount of greater than 0 and less than 10% of the mass of the lubricant.

7. A traction sheave elevator, comprising:
at least an elevator car; and
a plurality of suspension ropes configured to move the elevator car, the plurality of suspension ropes passing over a traction sheave provided with a hoisting machine, and the plurality of suspension ropes being lubricated with a lubricant including at least oil and thickener; wherein
the thickener is greater than 65% of the mass of the lubricant, and
the thickener contains at least one of lithium, lithium complex, calcium, calcium complex, calcium carbonate, gypsum, talcum, calcite, fluorite or apatite, and a compound containing calcium.

8. The traction sheave elevator according to claim 7 , wherein the oil is in an amount of greater than 15% and less than 35% of the mass of the lubricant.

9. The traction sheave elevator according to claim 8 , wherein the oil is in an amount greater than 20% and less than 30% of the mass of the lubricant.

10. The traction sheave elevator of claim 7 , wherein the thickener is in the amount of greater than 65% and less than or equal to about 85% of the mass of the lubricant.

11. The traction sheave elevator of claim 10 , wherein the thickener in the lubricant is in an amount greater than 65% and less than 75% of the mass of the lubricant.

12. The traction sheave elevator according to claim 7 , wherein the lubricant includes, in addition to the oil and the thickener, a binding agent in the amount of greater than 0 and less than 10% of the mass of the lubricant.

13. A rope containing metal as a load-bearing material, the rope comprising:
at least one strand having metal wires, the rope being lubricated with a lubricant; wherein
the lubricant includes at least oil and thickener, the thickener being greater than 65% of the mass of the lubricant, and
the thickener contains at least one of lithium, lithium complex, calcium, calcium complex, calcium carbonate, gypsum, talcum, calcite, fluorite or apatite, and a compound containing calcium.

14. A rope containing metal as a load-bearing material, the rope comprising:
at least one strand laid from metal wires; wherein
the rope is lubricated with a lubricant including at least oil and thickener, the thickener being greater than 65% of the mass of the lubricant.

Assignees

• Aulanko Esko
• Pelto Huikko Raimo
• Korvenranta Sakari
• Myllynen Jarmo
• Torenius Pekka
• Kone Corp

Inventors

• Aulanko Esko
• Pelto Huikko Raimo
• Korvenranta Sakari
• Myllynen Jarmo
• Torenius Pekka

Classifications

• C10M2201/062

  Oxides; Hydroxides; Carbonates or bicarbonates · CPC title

• D07B2201/1036

  nine or more strands respectively forming multiple layers · CPC title

• C10M113/12

  Silica · CPC title

• C10N2030/06

  Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title

• C10M2201/1036

  used as thickening agents · CPC title