The hydraulic system provides power for the operational devices of an engineering crane. Proper maintenance of the hydraulic system is crucial for enhancing the crane‘s operational reliability. Typically, hydraulic systems must undergo flushing before they are officially put into use. The purpose of this flushing process is to remove contaminants, metal debris, fibrous compounds, iron […]
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Mí Feabhra
Mí Feabhra
Load limiters and load moment limiters are collectively referred to as overload protection devices. Overloading is one of the primary causes of crane accidents. In mild cases, overloading can damage crane components, causing motor overload and structural deformation. In severe cases, it can result in broken beams, tower collapse, arm fractures, or even complete machine […]
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Mí Feabhra
Mí Feabhra
Factor 1: Unsafe Conditions of the Crane Itself One of the primary reasons for the falling of loads from crane hooks is the inherent unsafe conditions of the crane itself. These conditions can stem from various sources, including design flaws, manufacturing defects, improper installation, and inadequate maintenance. 1. Design Deficiencies Poorly designed cranes can present […]
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Mí Feabhra
The structure of the short-stroke block brake is shown in Figure 1-17. When the electric motor is powered on, the electromagnet coil connected in parallel with the motor winding is also energized. This generates an attractive force in the stationary core (9), which pulls the moving core (8). Consequently, the push rod (7) is pushed […]
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Mí Feabhra
1. Classification by Length Ball mills can be classified based on the ratio of their length to diameter. This classification affects their grinding efficiency, usage, and application in various industries. (1) Short Ball Mill A ball mill is considered short if its length-to-diameter ratio is less than 2. It is commonly referred to simply as […]
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Mí Feabhra
As a type of lifting and transportation machinery, large tower cranes are prone to rust and corrosion due to various unresolved issues. The steel structures of large tower cranes are particularly susceptible to rusting when exposed to air for extended periods without adequate protective measures. This corrosion occurs when the steel structure reacts chemically with […]
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Mí Feabhra
1. Proper Positioning During Lifting Operations During lifting operations, standing directly beneath the boom, the suspended load, or within the lifting path can be extremely dangerous. The triangular area formed by the guide pulley and steel cable, the surrounding area of the fast rope, or the force direction of a diagonally pulled hook are all […]
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Mí Feabhra
Mí Feabhra
mé. Safety Operation Regulations 1. Operator Qualifications Before operating the plate rolling machine, the operator must undergo proper training to fully understand the machine’s structure, performance, and operating procedures. Only qualified personnel should be allowed to use the equipment to prevent accidents and ensure safety. 2. Pre-Operational Inspection Before starting the machine, the following checks […]
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Mí Feabhra
1. Broken Working Steel Wire Rope When one end of the gondola’s working steel wire rope breaks, the suspended platform will tilt. Once it reaches a certain inclination, the safety lock will automatically engage, securing the platform to the safety wire rope. I gcás den sórt sin, construction personnel inside the gondola should remain calm. It […]
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Mí Feabhra
Mí Feabhra
1. Cothabháil tosaigh do mheaisíní nua tar éis an chéad cheann 250 Uaireanta oibríochta, na tascanna cothabhála seo a leanas a chomhlíonadh: Cuir an scagaire breosla agus an scagaire breosla breise in ionad. Iniúchadh a dhéanamh ar imréiteach comhla an innill. 2. Cothabháil Laethúil Déan na seiceálacha agus na gníomhaíochtaí cothabhála seo ar bhonn laethúil: Iniúch a dhéanamh ó, glan, nó an scagaire aeir a athsholáthar. Glan an […]