RU2010145348A - METHOD FOR DETERMINING OPERATIONAL PARAMETERS UNDER QUASILINEAR REGULARITY OF THEIR CHANGE IN TAPE-BODY BRAKES OF DRILLING WINCHES - Google Patents
METHOD FOR DETERMINING OPERATIONAL PARAMETERS UNDER QUASILINEAR REGULARITY OF THEIR CHANGE IN TAPE-BODY BRAKES OF DRILLING WINCHES Download PDFInfo
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- RU2010145348A RU2010145348A RU2010145348/11A RU2010145348A RU2010145348A RU 2010145348 A RU2010145348 A RU 2010145348A RU 2010145348/11 A RU2010145348/11 A RU 2010145348/11A RU 2010145348 A RU2010145348 A RU 2010145348A RU 2010145348 A RU2010145348 A RU 2010145348A
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- brake
- friction
- pulley
- tape
- determined
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- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
1. Способ определения эксплуатационных параметров при квазилинейной закономерности их изменения в ленточно-колодочных тормозах буровых лебедок, содержащих барабан лебедки, покоящийся на подъемном валу, и на который навивается канат талевой системы, и с торцов которого установлены тормозные шкивы, рабочие поверхности которых огибают тормозные ленты с установленными на их дуге обхвата фрикционными накладками с постоянным и переменным шагом и при этом концы сбегающих ветвей тормозных лент через тяги присоединены к балансиру, а их концы набегающих ветвей - к мотылевым шейкам коленчатого вала, который связан через передаточное устройство с рычагом управления тормозом, отличающийся тем, что при квазилинейном законе изменения частоты вращения тормозного шкива от установившегося значения до нуля при спуске загруженного элеватора определение эксплуатационных параметров, сведенных в первую группу, ленточно-колодочного тормоза выполняют в следующей последовательности: ! - режим вращения тормозного шкива описывается зависимостью вида ! ! где ω2, ω0 и t - текущее и начальное значение угловой скорости тормозного шкива и время реализации первого; ω0=εmtк; εm - замедление тормозного шкива; tк - продолжительность процесса торможения; ! - время торможения определяется по зависимости вида ! ! где l - длина одной свечи; υc - линейная скорость спуска свечи; ! - натяжение набегающей ветви (SH) тормозной ленты определяется по зависимости вида ! ! где SC - натяжение сбегающей ветви тормозной ленты; е - основание натурального логарифма; α - угол обхвата накладками шкива; f - коэффициент трения скольжения в паре «накладка-шкив»; ! - мак 1. A method for determining operational parameters with a quasilinear regularity of their change in band-brake brakes of drill hoists containing a winch drum resting on a lifting shaft, and on which a hoist rope is wound, and from the ends of which brake pulleys are installed, the working surfaces of which envelope brake bands with friction linings with constant and variable pitch mounted on their arc of grasp, and the ends of the runaway branches of the brake bands through the rods are attached to the balancer, and their ends are descending branches - to the crank crankshaft necks, which is connected through the transmission device to the brake control lever, characterized in that, with a quasilinear law, the brake pulley rotational speed changes from the established value to zero when the loaded elevator is lowered, the operational parameters are reduced to the first group -brake brake perform in the following sequence:! - the rotation mode of the brake pulley is described by the dependence of the form! ! where ω2, ω0 and t are the current and initial value of the angular velocity of the brake pulley and the time of implementation of the first; ω0 = εmtk; εm - deceleration of the brake pulley; tк is the duration of the braking process; ! - The braking time is determined according to the type! ! where l is the length of one candle; υc - linear velocity of the descent of the candle; ! - The tension of the oncoming branch (SH) of the brake band is determined by the type! ! where SC is the tension of the runaway branch of the brake tape; e is the base of the natural logarithm; α is the angle of coverage of the pulley plates; f is the coefficient of sliding friction in a pair of "slip-pulley"; ! - poppy
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010145348/11A RU2507423C2 (en) | 2010-11-08 | 2010-11-08 | Method for determining operating parameters at quasi-linear law of their change in band-and-shoe brakes of boring winches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010145348/11A RU2507423C2 (en) | 2010-11-08 | 2010-11-08 | Method for determining operating parameters at quasi-linear law of their change in band-and-shoe brakes of boring winches |
Publications (2)
Publication Number | Publication Date |
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RU2010145348A true RU2010145348A (en) | 2012-05-20 |
RU2507423C2 RU2507423C2 (en) | 2014-02-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU2010145348/11A RU2507423C2 (en) | 2010-11-08 | 2010-11-08 | Method for determining operating parameters at quasi-linear law of their change in band-and-shoe brakes of boring winches |
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RU (1) | RU2507423C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117150869A (en) * | 2023-10-31 | 2023-12-01 | 中国航发四川燃气涡轮研究院 | Design method for metal matrix composite blisk fracture simulation test |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1600114B1 (en) * | 1967-02-07 | 1970-04-23 | Stoeckicht Alexander W | Cylinder friction clutch or brake operated by means of fluid pressure |
FR2268192B1 (en) * | 1974-04-16 | 1977-10-07 | Sabes & Cie | |
JP2003194120A (en) * | 2001-12-25 | 2003-07-09 | Sumitomo Heavy Industries Construction Crane Co Ltd | Cooling device of brake or clutch |
RU2279579C2 (en) * | 2004-08-30 | 2006-07-10 | Государственное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ГОУВПО "КубГТУ") | Method of heating and cooling brake pulleys of belt-block brake of draw-works at estimation of their thermal balance |
RU2357130C2 (en) * | 2007-03-27 | 2009-05-27 | Ивано-Франковский национальный технический университет нефти и газа | Method for control of specific loads in strands of brake belt of belt-block brake of draw works |
RU2357132C2 (en) * | 2007-07-23 | 2009-05-27 | Ивано-Франковский национальный технический университет нефти и газа | Method for control of specific loads on strands of brake belt of belt-block brake in draw works |
-
2010
- 2010-11-08 RU RU2010145348/11A patent/RU2507423C2/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117150869A (en) * | 2023-10-31 | 2023-12-01 | 中国航发四川燃气涡轮研究院 | Design method for metal matrix composite blisk fracture simulation test |
CN117150869B (en) * | 2023-10-31 | 2024-01-09 | 中国航发四川燃气涡轮研究院 | Design method for metal matrix composite blisk fracture simulation test |
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Publication number | Publication date |
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RU2507423C2 (en) | 2014-02-20 |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20130806 |