How to calculate the piston force
Bottom area of cylinder inner diameter × System pressure = output force ----- n
for example: bore 40, system pressure 0.5MPa
20 × twenty ×π× 0.5 = 628n
thrust F1 on cylinder piston rod= π/ four × D2 × P ×&# 223; N)
tension on cylinder piston rod F2= π/ four × D2-d2 × P ×&# 223; N)
F1: push force when piston rod is pushed out
F2: pull force when piston rod is pulled back
D: inner diameter of cylinder pipe (piston diameter)
D: diameter of piston rod
P: air source pressure
& Load rate (at slow speed)= About 65% fast time= For example,
air pressure 0.5MPa (5.0985811kg force / square centimeter (kgf / cm))
cylinder diameter 50mm (5cm)
cylinder cross section = 3.14x (5 / 2) ^ 2 = 19.63 (square centimeter)
therefore, The theoretical output under 0.5MPa = 5.0985811 * 19.63 = 100.085 (KGF) can also be directly referred to the following cylinder output table
but it is only the theoretical output. Actually, it will be very fast to look up the table according to the working conditions
The calculation formula of cylinder pressure is: F = P * a-f. F: Cylinder output (KGF) a: sectional area (cm2) P: applied pressure (kgf / cm2) f: frictional resistance (KGF). Calculate the pressure and multiply it by the force area. The pressure is the pressure of the air source, and the stressed area is the area of the piston
the calculation formula of supercharging cylinder output = supercharging ratio * air source pressure * cylinder piston area = cylinder piston area / supercharging rod area * air source pressure * cylinder piston area. The calculation formula can get the supercharging ratio from cylinder piston area / supercharging rod area
in the actual calculation, the cylinder piston area and supercharging rod area of the gas-liquid supercharging cylinder will not be shown in the parameter table, and the details have to be known by consulting the manufacturer
In general, the cylinder force is required according to the theoretical balance condition of external load, and different load rates are selected according to different speeds, so that the cylinder output force has a little margin The cylinder diameter is too small, the output force is not enough, but the cylinder diameter is too large, which makes the equipment bulky, increases the cost, increases the gas consumption and wastes energy. In fixture design, force expanding mechanism should be used as far as possible to rece the overall size of the cylinder When the horizontal cylinder pushes the load, the exhaust throttle is recommended; When the cylinder installed vertically lifts the load, it is recommended to use the intake throttle to adjust the speedtake No. 363 or 206 from Xingning Bridge East, transfer to 359 from Ningbo Institute of technology and get off at Ningbo City College Station
or get off at the Institute of technology and walk directly, it's less than one stop.
bus route 369: Ningbo passenger transport center
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Tongda Road
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Wujia village
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Huancheng West Road
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Huancheng South Road
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TV Center
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Ningxing community
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Nanya new village
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East Gate of Liannan community
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West of Liuting overpass
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women's and children's Hospital (West Road of Nanzhan)
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South Station
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Wanghu market
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Sanshi overpass (China CITIC Bank)
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east of Xingning bridge
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Li Huili hospital (traffic police detachment)
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Feihong New Village
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Jianxing road
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Tiantong North Road (city garden, Hebang building)
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Zhongcui road
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Yongtai Park
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East Lake Xinyuan
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Huatai Cambridge (phase I)
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Middle Maocheng Road (Yinzhou telecommunication bureau)
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West Campus of Wanli College (east of Wanli College)
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International Conference Center
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Ningbo City College (Yinzhou Ecation Center)
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living area of Polytechnic
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living area of City College
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north gate of Xuefuyuan
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living area of Health College
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Ningbo middle school
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Ningbo Yinzhou higher ecation park
bus route 132: Ningbo passenger transport center
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shindanu group (Ouchi New Village)
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Ouchi building
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City street lamp management office
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Zhongji Ningbo Company
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light textile city
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Shiqi Street
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Wanguo mall
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Huamei furniture market
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Guangbo Yangguang Liyuan
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34 provincial road Yinzhou Avenue
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Yayuan South Road
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Wanjin road
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Yinzhou Daqiao East
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Yinzhou senior high school
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Yinzhou senior high school
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Tiantong South intersection of Yinzhou Avenue
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Yinzhou Avenue entrance of Tiantong South Road
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Southern business district
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Yinzhou Park East
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Qianhe intersection of Rili middle road
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- < B R / > -
Nanyu New Village Phase II
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Ningbo Yinzhou Higher Ecation Park
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Ningbo Nottingham University
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Ningbo Nottingham apartment building
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Xuefuyuan
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north gate of Xuefuyuan
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Ningbo City College (Yinzhou Ecation Center)
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Ningbo Institute of technology of Zhejiang University
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Wanli College West Campus (Wanli College East)
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Trade City Middle Road (Yinzhou Telecom Bureau)
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Huatai Cambridge (phase I)
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Donghu Xinyuan
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Yongtai Park
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South Gate of Donghu garden
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Changshou South Road
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Science and Technology Branch Road
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Chunhui road
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Songjiang East Road
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Chunyuan road
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Panhuo community
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< Tongwang
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xinjiayuan
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Xinghe Chenguang < B R / > -
Yuxing Street (East Railway Station)
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east railway station.
1.1km Wanli college north bus stop
by bus: 627 road 660 road 692 road 883 road 902 Road 101 Road 107 Road 108 Road 109 road 153 road 182 road
2. It's better to take a suitcase, if you carry a small handbag, it will be ugly,
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