10-09-2016, 04:19 PM
OPTIMIZING AND EFFICIENTLY USING HUMAN WORK TO LIFT
AND TO SCREW OR UNSCREW THE BOLT FROM HEAVY VEHICLES
[attachment=70950]
OBJECTIVE:
Nowadays the technologies have been winding up and it is flourishing like a sea in the
world. The newer generation greatly relies on the efficient usage of human work. We all know
that a greater amount of energy is utilized in screwing and unscrewing the bolt from the wheels.
So, in order to reduce the human work, being wasted, we designed an system so as to reduce the
wastage of energy and to improve the efficiency of work done and also to permit easy screwing
and unscrewing of bolt from vehicles especially heavy duty vehicles. Our system makes use of
gear motor, whose shaft is used for performing the work, and fluid system is used for rotation of
gears. Thus the reciprocating movement is converted into rotational movement which is then
used to obtain the work.
METHODS:
EXISTING MODEL:
The truckers use the lever, in which load is applied vertically to tighten or loosen the
bolt. The entire weight of man applying the load is concentrated on applying the load. The
application of entire load on bolt may lead to destroying the thread that is already in the nut or
on the bolt. This creates a problem to replace the entire set of nut and bolt.
PROPOSED METHOD :
We designed a method, in which, the power from the leg is used to lift the vehicle and to
tighten or loosen the bolt. An external fluid tank is fitted to provide the fluid source and a spring
return reciprocating pump which is operated by the leg provides / permits the fluid to pass
through the tube and then to the hydraulic jack and to the pump and finally returns to the tank.
The reason for the use of fluids is that it can be able to withstand high pressures and highly
incompressible control valve is provided in order to change the flow direction of fluid from
hydraulic jack to the pump.
PRINCIPLE :
The principle behind this method is purely based on the PASCAL’s Law, which states
that ,”the force applied on the incompressible fluid is equally transmitted undiminished in all
directions” , Thus the even a small force when applied by an small surface is made to act on the
large surface the magnitude of force remains constant.
WORKING :
When the reciprocating pump is actuated manually, the piston retracts inside the pump
wall, and suction and exhaust stokes are created in the pump which is used to force the fluid into
the tubes. During suction the piston reaches the left end position, the low pressure is created
which makes the fluid to enter the pump. At the end of suction stroke the exhaust stroke comes
into action where a high pressure fluid is pumped out from the pump to the tube. First the fluid
flows through hydraulic system where the entire weight is lifted by jack and the flow valve is
controlled manually to change the flow of fluid direction into the gear motor. As the high
pressure fluid forces into the gear motor the high pressure energy is converted into the force
which when acting on the gear causes the gear to rotate. This rotation of gears are coupled to the
bolt by shaft. This shaft is used to transmit the torque developed in the gear motor into the
torque needed for the bolt to be screwed or unscrewed from the wheel. Since the fluid is
working in the closed, as there are no air gaps, the fluid will be sucked in easily and high
pressure can be easily developed with the minimum amount of work being done. The fluid after
turning the gear returns back to the tank, which can be used to turn the gear further by utilizing
the same fluid until the work is fully done.
AND TO SCREW OR UNSCREW THE BOLT FROM HEAVY VEHICLES
[attachment=70950]
OBJECTIVE:
Nowadays the technologies have been winding up and it is flourishing like a sea in the
world. The newer generation greatly relies on the efficient usage of human work. We all know
that a greater amount of energy is utilized in screwing and unscrewing the bolt from the wheels.
So, in order to reduce the human work, being wasted, we designed an system so as to reduce the
wastage of energy and to improve the efficiency of work done and also to permit easy screwing
and unscrewing of bolt from vehicles especially heavy duty vehicles. Our system makes use of
gear motor, whose shaft is used for performing the work, and fluid system is used for rotation of
gears. Thus the reciprocating movement is converted into rotational movement which is then
used to obtain the work.
METHODS:
EXISTING MODEL:
The truckers use the lever, in which load is applied vertically to tighten or loosen the
bolt. The entire weight of man applying the load is concentrated on applying the load. The
application of entire load on bolt may lead to destroying the thread that is already in the nut or
on the bolt. This creates a problem to replace the entire set of nut and bolt.
PROPOSED METHOD :
We designed a method, in which, the power from the leg is used to lift the vehicle and to
tighten or loosen the bolt. An external fluid tank is fitted to provide the fluid source and a spring
return reciprocating pump which is operated by the leg provides / permits the fluid to pass
through the tube and then to the hydraulic jack and to the pump and finally returns to the tank.
The reason for the use of fluids is that it can be able to withstand high pressures and highly
incompressible control valve is provided in order to change the flow direction of fluid from
hydraulic jack to the pump.
PRINCIPLE :
The principle behind this method is purely based on the PASCAL’s Law, which states
that ,”the force applied on the incompressible fluid is equally transmitted undiminished in all
directions” , Thus the even a small force when applied by an small surface is made to act on the
large surface the magnitude of force remains constant.
WORKING :
When the reciprocating pump is actuated manually, the piston retracts inside the pump
wall, and suction and exhaust stokes are created in the pump which is used to force the fluid into
the tubes. During suction the piston reaches the left end position, the low pressure is created
which makes the fluid to enter the pump. At the end of suction stroke the exhaust stroke comes
into action where a high pressure fluid is pumped out from the pump to the tube. First the fluid
flows through hydraulic system where the entire weight is lifted by jack and the flow valve is
controlled manually to change the flow of fluid direction into the gear motor. As the high
pressure fluid forces into the gear motor the high pressure energy is converted into the force
which when acting on the gear causes the gear to rotate. This rotation of gears are coupled to the
bolt by shaft. This shaft is used to transmit the torque developed in the gear motor into the
torque needed for the bolt to be screwed or unscrewed from the wheel. Since the fluid is
working in the closed, as there are no air gaps, the fluid will be sucked in easily and high
pressure can be easily developed with the minimum amount of work being done. The fluid after
turning the gear returns back to the tank, which can be used to turn the gear further by utilizing
the same fluid until the work is fully done.