The Experts below are selected from a list of 87 Experts worldwide ranked by ideXlab platform
Straka Miroslav - One of the best experts on this subject based on the ideXlab platform.
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Crane Hook Block - Lifting Capacity 16 tons
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013Co-Authors: Straka MiroslavAbstract:The aim of this thesis is the design of crane hook Block with a capacity of 16 tons. Pulley Block used for lifting and moving loads in a medium heavy-duty use. It is equipped with a simple hook. The work, therefore, the proposal contains solutions rope transfer, strength and dimensional calculations of components and assembly drawings, axes, Pulleys and nut hook
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Crane Hook Block - Lifting Capacity 16 tons
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013Co-Authors: Straka MiroslavAbstract:Cílem této bakalářské práce je návrh jeřábové kladnice s nosností 16 tun. Kladnice slouží ke zdvihání a přemisťování břemen ve středně těžkém provozu. Je vybavena jednoduchým hákem. Práce tedy obsahuje návrh řešení lanového převodu, pevnostní a rozměrové výpočty jednotlivých komponent a výkresovou dokumentaci sestavy, osy kladek a matice háku.The aim of this thesis is the design of crane hook Block with a capacity of 16 tons. Pulley Block used for lifting and moving loads in a medium heavy-duty use. It is equipped with a simple hook. The work, therefore, the proposal contains solutions rope transfer, strength and dimensional calculations of components and assembly drawings, axes, Pulleys and nut hook.
Hammer Jaroslav - One of the best experts on this subject based on the ideXlab platform.
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Electromechanical alternative of linear hydraulic tractive unit
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008Co-Authors: Hammer JaroslavAbstract:In this diploma thesis is accomplished description of existing condition of decorating linear tractive unit. Analysis of safety requirements for linear tractive unit is also accomplished. Eligible construction concept of frame of electromechanical linear tractive unit is chosen. Selection and calculation of ball screw and nut is made also with draft of its eligible support . Choose of eligible engine and clutch for gearing of engine torque from engine to the ball screw is done too. Further is designed eligible concept of gearing of the rotary motion of ball screw to straight motion of bottom Pulley Block, which now interacting with upper firm Pulley Block provides lifting of tensile rod with coulisse
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Electromechanical alternative of linear hydraulic tractive unit
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008Co-Authors: Hammer JaroslavAbstract:V diplomové práci je proveden popis současného stavu dekoračních prospektových lineárních tahových jednotek a je proveden rozbor bezpečnostních požadavků na lineární tahovou jednotku. Je zvolena vhodná konstrukční koncepce rámu elektromechanické lineární tahové jednotky, je proveden výběr a výpočet kuličkového šroubu s maticí, návrh jeho vhodného uložení, volba vhodného motoru a spojky pro převod kroutícího momentu motoru na kuličkový šroub. Dále je navržena vhodná koncepce převodu rotačního pohybu kuličkového šroubu na přímočarý pohyb spodního kladkostroje, který v součinnosti s pevným horním kladkostrojem zajišťuje zdvih prospektové tahové tyče s kulisami.In this diploma thesis is accomplished description of existing condition of decorating linear tractive unit. Analysis of safety requirements for linear tractive unit is also accomplished. Eligible construction concept of frame of electromechanical linear tractive unit is chosen. Selection and calculation of ball screw and nut is made also with draft of its eligible support . Choose of eligible engine and clutch for gearing of engine torque from engine to the ball screw is done too. Further is designed eligible concept of gearing of the rotary motion of ball screw to straight motion of bottom Pulley Block, which now interacting with upper firm Pulley Block provides lifting of tensile rod with coulisse.
Stanislaw Wolny - One of the best experts on this subject based on the ideXlab platform.
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dynamic loading of the Pulley Block in a hoisting installation in normal operating conditions
Archives of Mining Sciences, 2009Co-Authors: Stanislaw WolnyAbstract:In order to develop reliable criteria for assessing the working condition of hoisting installations incorporating a Pulley Block, in the context of their fatigue endurance in the function of service time and depending on the type of hoisting gear. A thorough fatigue analysis is required to find the real loads and their time variations, necessitating the study of dynamic processes during the normal operating conditions of a hoisting gear and in emergency. This study is limited to dynamic processes during the normal service. Predicted data are verified experimentally through measurements of loading of selected elements of the analysed system using a real object.
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experimental verification of bearing rope loading in typical operating conditions of the hoisting installation
Archives of Mining Sciences, 2009Co-Authors: Stanislaw Wolny, Marek PlachnoAbstract:Theoretical data covering the start-up of a fully loaded conveyance moving from the shaft bottom with constant acceleration and the braking of the loaded conveyance reaching the top station with constant acceleration (Wolny, 2009) are to be verified experimentally, on a real object, to confirm the adequacy of the assumed simplifications. Theoretical results: predicted force levels in conveyance attachments are to be confirmed by experimental tests. Besides, testing facilities available to the authors enabled them to verify the formulas governing the magnitude of force acting in ropes at points the rope passes onto the Pulley Block during the two phases of the hoisting operation (results are obtained for the same model of the hoisting installation).
A Mahmoodian - One of the best experts on this subject based on the ideXlab platform.
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Comparison of the Efficacy and Duration of Three Different Methods of Digital Block
Yasuj University Of Medical Sciences, 2007Co-Authors: M Dehghani, A MahmoodianAbstract:Introduction & Objective: Finger injuries are very common and majority of them can be treated under digital Block anesthesia. Traditional digital Block is one of the most commonly performed Blocks performed by care providers in several medical fields. There are two other less known methods, transthecal (Pulley) Block, in which local anesthesia is injected into the flexor tendon sheat that needs less volume of anesthesia and hasnot neurovascular complications and subcutaneous Block in which local anesthesia is injected subcutaneously at the level of A1 Pulley. This study aimed to compare the results of the three methods of digital Block. Materials & Methods: A prospective randomized clinical trial was performed at Kashani hospital to compare the less known transthecal (Pulley) and subcutaneous methods with traditional digital Block with regard to the length of anesthesia and need to another anesthetic method (due to insufficient anesthesia) as a supplement. We divided 150 patients that were admitted to kashani hospital operating room due to finger injury, randomly, into three groups. In each group the patients were anesthetized by one of the three different methods. All Blocks were performed by the same investigator. Data were analyzed by SPSS software using T test. Results: Mean length of anesthesia was 34.2 min’s in the transthecal digital Block method and 34 min’s in the subcutaneous method and 33.8 min’s in the traditional digital Block method. A repeat injection or local infiltration as a supplement was necessary in 5 instances (7 Blocks) in the traditional digital Block method and 9 instances (11Blocks) in the subcutaneous method (p
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A revisit of transthecal digital Block and traditional digital Block for anesthesia of the finger
Wolters Kluwer Medknow Publications, 2007Co-Authors: M Dehghani, A MahmoodianAbstract:<strong>BACKGROUND</strong>: Finger injuries are very common and the majority can be treated under digital Block anesthesia. Traditional digital Block is one of the most commonly performed Blocks by care providers in several medical fields. There is another less known method, transthecal (Pulley) Block, in which local anesthesia is injected into the flexor tendon sheath.<br /> <strong>METHODS</strong>: A randomized clinical trial was performed to compare the transthecal (Pulley) and traditional digital Block with regard to the length of anesthesia and the need for another anesthetic method (due to insufficient anesthesia) as a supplement. We divided 100 patients who needed digital Block due to finger injury, into two groups randomly. In each group the patients were anesthetized either by traditional or transthecal digital Block. All Blocks were performed by the same investigator.<br /> <strong>RESULTS</strong>: Mean length of anesthesia was 34.2 minutes in the transthecal digital Block method versus 33.8 minutes in the traditional digital Block method (P>0.05). A repeated injection or local infiltration as a supplement was necessary only in 5 instances in the traditional digital Block method (P<0.05).<br /> <strong>CONCLUSIONS</strong>: Regarding fewer injections and reduced amounts of lidocaine, absence of neurovascular bundles damage and comparable length of anesthesia and no need to supplemental anesthesia, transthecal digital Block is an appropriate alternative to traditional digital Block.<br /> <strong>KEY WORDS</strong>: Digital Block, transthecal, Pulley, finger, flexor tendon sheath.<br />
Elsner Ondřej - One of the best experts on this subject based on the ideXlab platform.
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Crab of crane 32t
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011Co-Authors: Elsner OndřejAbstract:This thesis deals with design four-wheel crab of crane for overhead crane with capacity of 32,000 kg. Contains the functional calculations of steel rope , Pulleys, cable drum. The integral part of the thesis constitutes the calculation and choice of driving mechanism for lifting, travel drive and motor drive Pulley Block hook rotation
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Crab of crane 32t
Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011Co-Authors: Elsner OndřejAbstract:Práce se zabývá návrhem čtyřkolové jeřábové kočky mostového jeřábu pro nosnost 32 000 kg. Obsahuje funkční návrh kladkostrojového převodu jeřábu, lana, kladek, lanového bubnu. Dále se práce zabývá výpočtem a volbou pohonu zdvihu, pojezdu a motorickým pohonem otáčení háku kladnice.This thesis deals with design four-wheel crab of crane for overhead crane with capacity of 32,000 kg. Contains the functional calculations of steel rope , Pulleys, cable drum. The integral part of the thesis constitutes the calculation and choice of driving mechanism for lifting, travel drive and motor drive Pulley Block hook rotation.
