Tensile Forces in Lift Carrier Ropes Exerted by the Fluid Pressure

• Autorzy: Hrabovský Leopold

Identyfikatory

DOI

10.12913/22998624/110050

• Języki publikacji: EN

Abstrakty

EN

This paper describes the methodology by which it is possible to compare different tensile forces that are caused by the uneven distribution of loads in carrier ropes of lifts. In order to compare the applied tensile forces in a certain number of carrier ropes, it is possible to use the device called “rope hydraulic tension compensator”, when, for example, building new elevators, changing carrier ropes during renovations or servicing existing lifts. The comparison of tensile forces in lift carrier ropes by the described device is based on the method of liquid pressure diffusion in a closed vessel. The rope hydraulic tension compensator consists of a number of structural parts, the main of which are double-acting hydraulic cylinders. The number of these cylinders is equal to the number of carrier ropes of the given lift. The pressure of the hydraulic fluid, which is supplied to the inner shell of individual hydraulic cylinders, controls the length of extension of individual piston rods of the hydraulic cylinders. The position of the piston in each of the hydraulic cylinders is directly proportional to the length of the extended piston rod, which corresponds to compression of the cylindrical coiled spring, above which the respective hydraulic cylinder is located. Different compressions of individual cylindrical springs exert different magnitude of tensile forces in suspension eye-bolts, into whose longitudinal axes the total load size is distributed unevenly. The paper also describes the description and hydraulic circuit diagram of a hydraulic power unit, which is used to control the piston positions of two-way hydraulic cylinders.

Słowa kluczowe

EN

tensile force; lift; carrier rope; fluid pressure

PL

siła rozciągająca; winda; lina nośna; ciśnienie płynu

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2019
• Tom: Vol. 13, no 3
• Strony: 31--37
• Opis fizyczny: Bibliogr. 6 poz., fig.

Twórcy

autor

Hrabovský Leopold

• VŠB – Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava – Poruba, Czech Republic

Bibliografia

• 1. Hrabovský, L.: Apparatus Producing an Even Distribution of Strain into Carries. 022097World Multidisciplinary Civil Engineering-Architecture- Urban Planning Symposium’2017. Vol. 245, 2017, 1–6, DOI: 10.1088/1757–899X/245/2/022097.
• 2. Hrabovský, L., Michalik, P.: A tension equalizes in lidt carrying ropes. Advances in Science and Technology Research Journal, 11(4), 2017, 326–332, DOI: 10.12913/22998624/80936.
• 3. Hrabovský, L., Maslarić M.: Device designed for detection and setting the required tensile force in ropes. Advances in Science and Technology Research Journal, 12(1), 2018, 200–206, DOI: 10.12913/22998624/86614.
• 4. http://www.liftecgroup.com/lana.html
• 5. https://www.brugglifting.com/elevator/images/ downloads/manu/RLE_Manual.pdf
• 6. Hrabovský, L., Mantič, M., Voštová, V.: Adhesion Coefficient on the Limit of Slippage at Star-Up of the Manual Crane Trolley. Advances in Science and Technology Research Journal, 13(2), 2019, 92–99, DOI: 10.12913/22998624/106244.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).