BBD ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING

“SCISSOR LIFT WITH TROLLEY “

Er. Vinay Singh

WHAT IS SCISSOR LIFT

A scissor lift with trolley is a device used for lifting purposes, its objective is to make the table adjustable to desired height.

TYPES OF SCISSOR LIFTING

•Hydraulic lifting

•Electrical lifting

•Pneumatic

What Is Motorised Lifting

- 100 rpm

- 10 Volt DC

-High in torque in less rpm

Mechanism• Extension is achieved by applying

pressure to the outside of a set of supports located at one end of the mechanism, elongating the crossing pattern. This can be achieved through hydraulic, pneumatic, mechanical or simply muscular means.It may require no power to return to its original position, but simply a release of the original pressure.

CALCULATION

DC Motor N=100rpmV=12 VoltI=2 A

P=VIP=12.2P=24wP=2πNT/6024=2π.100.T/60T=2.2918 nmT=f.dF=mg

Case-1

M=0.5 kgF=0.5x9.81F=4.9 NT=f.dD1=2.2918/49D1=49.77 cm

CALCULATIONCase-2

M=0.7 kgF=0.7x9.81F=6.86 NT=f.dD2=2.2918/6.86D2=33.40 cm

Case-3

M=1 kgF=1x9.81F=9.81 NT=f.dD3=2.2918/9.81D3=23.36 cm

2D DRAWING

PARTS AND ITS DIMENSION

• TYRE (4) 7.5 cm

• WOODEN BOARD(4) 22*13.5 cm

• ALUMINIUM STRIP(4) 25.5*1.2*0.25 cm

• THREDED ROD(2) 23*0.5 cm

• Motor Clamp(8) 2.4*2.4 cm

• DC MOTOR(1) 100 rpm

• SLIDER(4) 25*4*1 cm

• ADAPTER 2amp, 12v

• ROD JOINER 2.5 cm

Foam Board

Foam core or Foam board is a very strong, lightweight, and easily cut material used for the mounting of photographic prints, as backing in picture framing.

ELECTRONIC COMPONENT

• DC MOTOR

• CLAMPS

• PCB BOARD

• LED

• 9V BATTERY

Accessories

• DC ADAPTER

• SWITCH

• RF TRANSMITTER

• RF RECIEVER

Wireless System

Adapters - 230 AC volt to 10 DC volt

DIP Bases - IC to translate the signal

Power Jack - Connector

APPLICATION OF SCISSOR LIFT

• Automobile Industry

• Construction Sites

• Railway And Aeronautical ind.

MAINTANENCE

IT WILL BE BASED UPON

1.Monthly maintenance

2.Semi annual maintenance

ADVANTAGE1.Lift High load at less effort

2.Its Compact in size

3.It can wirelessly controllable

4. Highly efficient

Disadvantage

• Skilled Operator Needed.

• Lift raises too slowly with load.

• Motor heated after excessive use.

WARNING

• To avoid personal injury, never go under the lift platform until the load is removed.• Maintenance or servicing, electrical component