Power electric cable hoist ( current, voltage and power ) measurement process

Electric cable hoist detection of power transformer 2 ton chain hoist analog measured parameter , and sent to the transmitter power, transmitter power shift from the analog signal will be measured as 0 ~ 5V voltage signal , ratchet lever chain hoist and then through the isolated analog input terminal board into the IPC, and finally by the display the measurement results are displayed visually 2 ton chain hoist, and record the results. Brake has been a decline in the amount of electric cable hoist test of a problem , we pioneered the use of laser distance sensor in the industry to measure the amount of braking decline , the specific detection process is : Laser distance sensor via an asynchronous serial interface (RS232C) and IPC to communicate in real time and displays the position of the weight on the screen ; the test, issued a " stop" signal to the hoist by the IPC electric cable hoist, the motor stops running ; according to the storage location of the initial weight at this time ; the motor stops running, 2 ton chain hoist due to gravity , weight also fell 2 Ton Electric Chain Hoist, then the CPU will continue to send the value of laser distance sensor reading in three consecutive.

When time ( or within the time specified ) weight position to achieve approximately equal values read request , indicating that the weight has stopped falling ; weights Electric Chain Hoist And Trolley and weight position last position value will be subtracted from the initial read , that get electric hoist decline in the amount of braking . Other 2 ton chain hoist ( such as lifting speed , car speed, etc. ) of the measurement, and the measurement is similar to the amount of brake decline , but at the same time recording the movement of displacement test of time electric cable hoist, and then the displacement and movement time was compared to the speed value. 2.7 overall design and control software required by the system function, you can get the following sub-module software 20 Ton Chain Hoist architecture .

optimization of the design 2 ton chain hoist in lightweight design object

The goal is the lightest weight 2 ton chain hoist, considering the cost of a variety of factors electric cable hoist, technology manual hoist, production management and carrying capacity . Optimization Design and implementation of a long period of difficulty is not to determine the optimal design solution 2 ton hoists, so as to consider design objects from the main parameters to various factors such as the main structural components 2 ton chain blocks, to achieve the desired goal.the finite element method can be applied for the actual working conditions of products, reasonable structure using boundary conditions electric cable hoist, the structure of the actual use of quantitative analysis and calculation , which for analyzing the structure of complex systems analysis is very effective , and the method can be combined with 2 ton chain hoist relevant software gives a comprehensive and effective calculation and image graphics ( dynamic and static display manual hoist) .

Using the finite element method manual hoist, the object can be analyzed as a solid model to calculate , given the structure of a comprehensive stress value 2 ton chain hoist, thereby laying the foundation for optimal design and lightweight design .

Main modular design makes parts and components are completely interchangeable with , for example, shorten design cycles 2 ton manual hoist, reduce production costs , but the most important thing is to achieve the best lightweight products to meet the performance requirements under the premise of user manual hoist configuration . At present the new design philosophy is to use modular design approach , integrating market data, historical reference design information , under strict guidance of scientific theory 2 ton chain hoist, to complete the modular components of the database system electric cable hoist, in order to build the desired product .

Liftech Equipment manual hoist

The small manual hoist design to improve stiffness mainly applied to the "reasonable layout support , cross-sectional shape of the 2 ton chain hoist design standards, guidelines with ribs ," these three criteria

lifting chain hoists.  the strength of the theoretical strength of four kinds of failures in the form of the theory by two main categories : plastic yield ( or shear ) strength theory, including the maximum shear stress theory and distortion energy theory ; other is brittle fracture strength theory, including the maximum tensile stress theory and maximum elongation strain theory .

Because of the small frame used in the analysis of electric cable hoist, the application is distortion energy theory that the fourth strength theory , modal analysis below focuses on them to do a technique is used to determine the vibration characteristics of the structure air chain hoist, which can determine the structure of the natural frequencies chain block hoists, mode shapes correlation manual hoists coefficient. Because the vibration characteristics of the structure determines the structure of the response of the various power loads , thereby affecting the dynamic characteristics of the overall system manual block, it can be seen as dynamic analysis infrastructure design studies 2 ton chain hoist.

Modal analysis of manual hoist design allows electric cable hoist the structure to avoid resonance or make a particular frequency vibration, structural design engineers recognize the different types of dynamic loads is how to respond and help to solve the control lever blcoks parameter estimation in other dynamic analysis 2 ton chain hoist. The 14 modal analysis is another starting point for kinetic analysis , such as the transient dynamics electric cable hoist, harmonic analysis and spectral analysis manual hoists manufacturer. Conducted on the crane bridge vibration stability studies and structural optimization design work needs to be completed on the basis of the establishment of the modal analysis, so this small frame structure optimization design analysis must be carried out before the first modal analysis 2 ton chain hoist.

Lightweight technology under the current situation has entered a broad space for

hand lifting hoists development electric cable hoist, mainly modern lightweight technology limit state method, optimized design method, finite element method and modular design method .

Liftech Equipment electric cable hoist

The main contents are as follows :

1 ) First, according to modern design manual hoist and electric cable hoist, with a small frame integrated parametric design system to generate three-dimensional solid model of a small frame 2 ton chain hoist; then thought simplified finite element model of the small frame manual hoist as a whole , using the finite element software analysis of the original car frame in the most unfavorable conditions of stress and strain distributions and the inherent electric cable hoist vibration characteristics 2 ton chain hoist, found deficiencies in the design of the car and take a flexible approach to deal with in the process according to the problems encountered electric cable lever hoist.

2 ) According to the results , the original car for loose structure , such as excessive weight status of the car lightweight structural redesign .In the main components is analyzed, 2 ton chain hoist designed for small frame structure analysis, the new car program meets lightweight design standards.

3 ) The maximum structural rigidity as the goal, volume , static equilibrium structure as the constraints on the use of topology optimization method to optimize small frame manual hoist, small frame parts cloud density derived optimized structure , in accordance with this cloud electric cable block, you can analyze the structure of lightweight 2 ton electric chain blocks parts and related details.

4 ) the use of designs and sizes to optimize processes and assembly characteristics combined with the design requirements of small lightweight frame structure drawn 2 ton chain hoist, and then repeated use optimization software to improve and optimize the little frame mechanics and modal analysis 10 ton electric cable hoist , verification and optimization improvements reasonableness of the results , the conclusion that the final design of the structure of the 160 tons of lightweight small frame .

Small frame for overhead crane design calculations electric cable hoist manufacturer, it is to abandon the traditional simplified calculation method Charpy or box section , using the finite element method to calculate the solid model will be small parts of the frame , with separate dynamics and static analysis , given the local stress , strain , high reliability of the results obtained , while providing an important manual hoist basis for the re- design of small lightweight frame .

Elaborated on the background and significance of the subject electric cable hoist supplier, analysis and : with tension and compression instead of bending standards ; reasonable layout support manual hoist; reasonable shape design criteria section 10 ; with ribs or partitions criteria ; satisfaction with pre-deformation harmful distortion criterion ; improve surface contact stiffness criteria electric cable hoist.

Liftech Equipment 2 ton chain hoist

2 ton chain hoist out redundant components or components of the redundant portion electric cable hoist;in combination to optimize the structure manual hoist, such as a monolithic structure can be split into several parts, placed in different positions ; reduced parts Outline size electric cable hoist.2 ton chain hoist is preferably a lightweight material. high strength steel instead of normal steel : As high-strength steel, high strength steel than ordinary strength under conditions of equal strength electric cable hoist, the production of parts with high strength steel Liftech Equipment manual chain hoists, compared with ordinary steel thin-walled components produced or small overall dimensions , which can make zero component quality reduced.selection of lightweight materials instead of steel: aluminum abrasion resistance , good processability , good heat dissipation manual block, high recovery rate , wide use 2 ton cable hoist. Maintaining the reduced mass of 1/ 2 of the thickness will only increase the strength of steel and other comparable. Aluminum alloy material prices are relatively high electric cable hoist, but long-term benefits to consider bringing their energy conservation and sustainable development benefits manual hoists , will make the result of the increased share of the cost is negligible .

Engineering Plastics: manual chain hoist to maintain long-term stability and performance of the same size , corrosion resistance 2 ton electric chain hoist,electric cable hoist excellent mechanical properties , the disadvantage is more expensive.lightweight composite materials : a lightweight material as the matrix , adding steel , ceramic fiber reinforced composite materials such as steel. Aluminum strength to overcome the weaknesses of lower than steel lever block , while maintaining the advantages of a lightweight . other lightweight materials: such as magnesium alloy, with a density of 2 ton chain hoist, lighter electric cable hoist than aluminum , high specific strength and stiffness than aluminum, in cars, cranes and other heavy machinery lightweight application of promising new materials.  the preferred processing method .

From the viewpoint of weight reduction in the mechanical properties of components meeting the prerequisite equivalent performance lighter than casting quality weldment to the lifting roll 2 ton chain hoist, for example, welding roll casting roll lighter than 30% to 40 %. Liftech Equipment manual hoist composite applications . The above method lightweight integration of applications electric cable hoist, can greatly improve the effect of weight reduction . Paper cranes for the domestic small lightweight frame research insufficient to Dalian Sinovel crane 160 tons bridge crane small frame for the study, a small frame on the original electric cable hoist research and analysis Liftech Equipment lever hoist, argumentation original small frame design is too conservative 2 ton chain hoist, the safety factor is too large , does not match the structure and lightweight design ideas.The small frame come the need for structural lightweight redesign conclusions electric cable hoist; then according to the principles and guidelines lightweight frame with agencies to optimize the design of a small frame 2 ton chain hoist, initially established in seven new small frame structure manual hoists; design new small frame to improve and optimize the analysis, the final design of the new car ; small frame the final design of the new scheme and compare the original car design electric cable hoist, small frame gives new working parameters to meet the original program lightweight results under the premise 2 ton chain hoist.