scholarly journals Design and Analysis of Hydraulic Jack with Different Gear Mechanisms

2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
G. K. Dixit
Keyword(s):  
Hydraulic Jack

scholarly journals USED TIRE AS BASE ISOLATOR TIRE FOR EARTHQUAKE RESISTANT HOUSES

2011 ◽  
Vol 7 (1) ◽  
pp. 37
Author(s):  
Inggemar Särfors
Keyword(s):  
Base Isolation ◽  
Load Ratio ◽  
Earthquake Resistance ◽  
Horizontal Load ◽  
Hydraulic Jack ◽  
Earthquake Energy ◽  
Base Isolator ◽  
Earthquake Resistant ◽  
Earthquake Load ◽  
Better Than

The investigation of foundation on tires for absorbing the earthquake energy on houses structure is described here. The foundations are cut cone in shape. There are two tests have been conducted to investigate the shaking energy absorption. First, the foundation is placed on the sand filled tire. The second one, the double tires support round foundation. For comparison purpose, the foundation on sand test without tire is also conducted. The laboratory tests are performed using double hydraulic jack to generate the applied loads. The first jack is used to give the vertical load on the top of foundation to simulate the house load. The other jack is used to produce the load in the horizontal direction to replicate the earthquake load. The results of the tests are plotted in the terms of horizontal load and displacement corves. The double tires foundation shows the higher horizontal displacement-load ratio compared to the others. It indicates that the double tire based foundation absorbing the earthquake energy better than the others. It is concluded that the tired based foundation can be installed to support in the earthquake resistant houses. Keywords: foundation, earthquake resistance, base isolation

Hydraulic Jack operated Hose Crimping Machine

2015 ◽  
Vol 3 (8) ◽  
pp. 455-458
Author(s):  
Dr Dinesh Keloth Kaithari
Keyword(s):  
Literature Review ◽  
Safety Factor ◽  
Working Condition ◽  
Electrical Power ◽  
Hydraulic Jack ◽  
Critical Components ◽  
Parts Fabrication

The present paper deals with developing of a crimping machine that can crimp hydraulic hoses with its fitting without the use of electricity. Detailed literature review indicates the fabrication of crimping machine that operates with electricity that inspired the authors to develop a hydraulic crimping machine that works without electrical power. Such a crimping machine is very useful when the rig is in movement and suitable for emergency crimping work in order to avoid shutdown time.The author has used Autodesk inventor software for designing critical components of the machine and obtained safety factor more than one for all the critical components. Safety factor less than one leads to the unsafe working condition of the critical parts. Fabrication of the whole assembly has been completed successfully for the required crimping for a hose size of 19.05 mm. The crimping machine has been tested successfully for crimping the required hose size. The design of the machine can be altered so that it can accommodate different die sizes in order to crimp hoses of different sizes.

Case study of a synchronous hydraulic jack-up system for constructing high-rise residential buildings

2010 ◽  
Vol 37 (6) ◽  
pp. 922-926 ◽  
Author(s):  
Jangwoo Seo ◽  
Wi Sung Yoo ◽  
Ung-Kyun Lee ◽  
Chunhak Kim ◽  
Kyung-In Kang ◽  
...  
Keyword(s):  
Residential Buildings ◽  
High Accuracy ◽  
Hydraulic Jack ◽  
High Rise ◽  
Construction Procedure ◽  
Jack Up ◽  
Heavy Structure ◽  
Financial Losses ◽  
Housing Facility

In recent years, contractors have frequently needed to apply innovative technologies to fulfil architects’ creative and intricate designs. They have often encountered abnormal construction conditions. One of the challenging and difficult process is the lifting of a heavy structure called the sky transfer truss (STT), especially if undertaking such a lift is not prevalently experienced. This can result in hazards, accidents, schedule delays, and financial losses to contractors. Traditionally, this structure is fabricated at elevation using scaffolds; however, this approach is costly, time-consuming, and labour-intensive. We introduce a procedure for lifting a 600 metric ton structure that has been fabricated on the ground with a synchronous hydraulic jack-up system. We also discuss the technical difficulties of integrating such a structure into a housing facility. This note addresses several challenging issues: high-accuracy fabrication, design of preventing interference and deformation, and the development of a construction procedure. The case study may be helpful for the flexible construction of extended designs and for the use of a jack-up system in lifting heavy structures of massive sizes and weights.

Cassava Mash Dewatering Parameters

2007 ◽  
Vol 3 (1) ◽  
Author(s):  
Oladele Peter Kolawole ◽  
Leo A.S. Agbetoye ◽  
A. S. Ogunlowo
Keyword(s):  
Pressure Drop ◽  
Pressure Distribution ◽  
Steel Plate ◽  
Pressure Gauge ◽  
Galvanized Steel ◽  
Hydraulic Jack ◽  
Experimental Equipment ◽  
Face Area ◽  
Measuring Cylinder ◽  
Medium Resistance

A study was conducted to evaluate the parameters affecting the dewatering of cassava mash during processing. First, studies on the pressure distribution within the mash during the dewatering were carried out. Experimental equipment consisting of tyre tube filled with water, a copper tube, and a pressure gauge was designed and fabricated to measure pressure used in expressing the juice contained in the grated cassava mash. It also included a cylindrical dewatering tank made of galvanized steel plate and a sack which was used as control. The tank had 7mm holes drilled at the base to allow the flow of juice. The volume of juice was measured using a measuring cylinder and the stopwatch measured the time. IITA TMS 4(2) 1425 variety of cassava at three levels of maturity age of 9, 12 and 15 months was utilized in the study. The dewatering pressure is from hydraulic jack used to press the grated mash. The dewatering parameters investigated were pressure drop, face area of the filter medium and mash resistance. The results showed that mash resistance varied with the age of the cassava with the highest value of 54,000,000,000 m/kg recorded. Medium Resistance also varied with the age, 33,000,000,000/m was the highest value recorded for 15 months old sample. 0.00371m3 volume of filtrate was obtained from the 12 months old sample with 0.0945 kg mash cake deposit on the filtering medium as the highest deposit. The Kozemy constant value for TMS 4(2) 1425 variety of cassava was found to be 11400000 and Porosity 0.0181, the result presents the distribution and values of identified parameters numerically for equipment designers use.

Site Measurement of Modularized Low-Position Hydraulic Jacking Formwork System

2013 ◽  
Vol 405-408 ◽  
pp. 3108-3112
Author(s):  
Ji Zhong Zhou ◽  
Ming Pi Liao ◽  
Jin Ping Zhuang ◽  
Qi Lin ◽  
Xue Feng Cai
Keyword(s):  
Tall Buildings ◽  
Construction Site ◽  
Hydraulic Jack ◽  
Supporting System ◽  
Steel Columns ◽  
Site Monitoring ◽  
Monitoring Result ◽  
Steel Truss ◽  
Platform System ◽  
Hydraulic Jacking

Jacking formwork system has been widely used in the construction of tall buildings and modularized low-position jacking steel platform formwork system is made up of several assembled and turnover subsystems, including steel truss platform system, steel columns supporting system, formwork and rack system, two-way-acting hydraulic jack and its control system.The paper described the application of the system in Fuzhou Yu Yang Central Golden Plaza Project and construction site monitoring were conducted. According to the site monitoring result, the performance of the jacking formwork system is further illustrated. In the end some suggestions were put forward to ensure construction safet .

scholarly journals Rancang Bangun Alat Mounting Dan Dismounting Bearing Dengan Menggunakan Hydraulic Jack

2016 ◽  
Vol 4 (2) ◽  
pp. 84
Author(s):  
Ulia Ridhani ◽  
Aminuddin Aminuddin ◽  
Riky Susanto ◽  
Adhim Abdul Jabbar
Keyword(s):  
Hydraulic Jack

scholarly journals Diseño de un sistema mecánico para elevación de vehículos

2019 ◽  
pp. 14-19
Author(s):  
Enrique Contreras-Calderón ◽  
Iván Alcalá-Barojas ◽  
Jorge Salvador Valdez-Martínez ◽  
Alberto Miguel Beltrán-Escobar
Keyword(s):  
Automotive Industry ◽  
Collision Detection ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Gear Train ◽  
Hydraulic Jack ◽  
Air Bags ◽  
Long Time ◽  
Automatic Parking ◽  
Day By Day

The automotive industry has always been concerned with improving day by day all of its vehicle models, developing more comfortable systems for its users, such as rear cameras, automatic parking systems, collision detection, air bags, etc. However, it has neglected certain aspects like the replacement of tires when having a puncture, using devices that have not changed in a long time. We present the design of a protoype coupled to a bottle-type hydraulic jack to elevate automotive vehicles, replacing the mechanical energy provided by the human with electrical energy of direct current provided by the car’s battery. The prototype consists of a 12 V gear motor that moves a gear train mechanism to activate a crank that will be coupled to the jack to produce the lifting.

scholarly journals Pengembangan Alat Kempa Panas (Hot Press) Penekanan Dongkrak Hidrolik untuk Pembuatan Papan Komposit ukuran 25 cm x 25 cm

2020 ◽  
Vol 13 (1) ◽  
pp. 25-31
Author(s):  
Junaidi Junaidi
Keyword(s):  
Flat Surface ◽  
Electric Heating ◽  
Heating Element ◽  
Surface Shape ◽  
Small Scale ◽  
Hydraulic Jack ◽  
Hot Press ◽  
Pressure Plate ◽  
Composite Board ◽  
Electric Heating Element

Human needs with wood continue to increase along with the increasing population, on the other hand Indonesia has a very large supply of wood. One way to overcome this is by substituting the use of wood from composite board products from wood or non-wood waste materials such as sawdust, coconut fiber, OPEFB fiber, bamboo fiber, bagasse and others. Composite board manufacturing technology is strongly influenced by the temperature, time and pressure contained in the hot press, either the system works manually or mechanically. The use of a hot press machine has so far been simple using an electric heating element from an iron element. For a n area of 40 cm x 40 cm board molding required 2 iron elements, the heat generated is not optimal (up to 1200 C), to heat the board to 1500 C the heating element often breaks / burns, this is certainly less efficient. Stripe heater type electric heating element is a flat plate heating element (Hot Plate) which can be used to heat a flat surface on pressing lignocellulosic material. The purpose of this research is to engineer and design and manufacture small scale heat press for 40 cm x 40 cm mold size, to test hot press and to test the physical and mechanical properties of composite boards. From the results of the manufacture of hot pressing tools obtained tool size 100 cm x 60 cm using iron profile u size 12 cm x 6 cm x 6 cm with a thickness of 0.4 cm. The pressure unit consists of a base plate measuring 40 cm x 40 cm x 1.5 cm, a pressure plate measuring 40 cm x 40 cm x 0.8 cm, a heating element measuring 40 cm x 40 cm x 0.5 cm using a power of 1.5 Kw each one. The suppressor component uses a hydraulic jack with a pressure of 50 tons. The heating element circuit is contained in the electrical panel box consisting of MCB, sign lights, thermocouple, amperemeter, and electrical wires. From the results of the heat test on the surface of the pressure plate obtained heat spread evenly on the entire surface of the plate and the pressure applied to the pressure plate is able to withstand the pressure from the hydraulic jack with a flat surface shape.

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