HYDRAULIC FLOOR JACK
DESCRIPTION:
Hydraulic jacks are mechanical devices used to lift heavyweight. They are used in automobile industries to lift vehicles from the ground, which is why they are known as a kind of hydraulic car jack. Normally, jacks are rated for a maximum lifting capacity, for example, 1.5 tons or 3 tons. Industrial jacks can be rated for many tons of load. The force of hydraulic jacks can be calculated with pascal’s law. Hydraulic jacks consist of two pistons inside the cylinder that is responsible for lifting the heavyweight. The bigger and smaller cylinder are connected together. The small piston forces the fluid to lift the big piston. There are two ball valves that work as a check valve, allowing flow and stop the flow while pumping.
-A bar is inserted into the handle socket of the jack, when pumped, the hydraulic fluid forces by a piston and go through a one-way valve. The fluid force acts at the bottom of the bigger cylinder, allowing the ram to go upwards. The other valve is blocked so pressurized fluid can’t back until it is unscrewed. This is how the hydraulic jack works.
APPLICATION:
Jacks as a whole have wide applications in different industries and are used to lift and transport heavy loads, relieve vertical forces from weight-bearing members to create space for repairs. Hydraulic jacks or other kinds are also equipment used in construction work, shipbuilding, automotive repair, and other specialized industries.
-floor jacks are horizontally operated. The shaft pushes on a crank that connects to a lifting pad, which is then lifted vertically.
COMPONENTS OF HYDRAULIC JACK:
To illustrate and understand the components of hydraulic jacks, a typical manually operated hydraulic jack will be considered since it’s commonly used. Below are the major components of hydraulic jacks.
-Reservoir or buffer tank
-Pump with piston or plunger
-Pump lever or handle
-Check valve
-Main cylinder or ram
-Release valve
-Handle
-A reservoir or buffer tank: is a vessel that holds the hydraulic fluid or pumps oil which will be used to transfer applied pressure from the pump to the ram.
-Piston pump: is a part that is mechanically activated by moving the pump lever or handle up and down.
-Pump lever or handle: the movement of the pump lever builds up pressure in the hydraulic fluid which transfers that pressurized fluid through a check valve and into the main cylinder.
-The main cylinder: is also referred to as ram, when drive upwards, it extends out of the hydraulic jack body by the pressure of the hydraulic fluid, creating the required lifting force and lifting the load.
-Release valve: is a part that helps to release the pressure so that the ram can retract and the load can be lowered.
Exploded View
The pieces of the hydraulic floor jack:
Part 1
Part 2
Part 3
Part 4
Part 5: Clevis pin headed
Part 6, 7, 8: Hex bolt
Part 9, 10: Spring pin slotted
Part 11
Part 12 (x2)
Part 13 (x12)
Part 14 (x2)
Part 15 (x2)
Part 16: Bolt
Part 17: Nut
Part 18 (x2)
Part 19
Part 20 (x2)
Part 21
Part 22
Part 23
Part 24 (x2)
Part 25
Part 26
Part 27
Part 28
Part 29: Hexalobular (x2)
Part 30, 31, 32, 33, 34: Bolts and Nuts.
The Assemply of the machine:
How hydraulic floor jack work ?
Hydraulic jacks function based on a concept in fluid mechanics known as Pascal’s Principle. Essentially, if two cylinders (a large and a small one) are connected by an incompressible fluid, and a given amount of pressure is applied to one cylinder, that same pressure is imparted to the second cylinder through the fluid connecting them. However, because pressure is equal to force per unit area, the cylinder that has a larger area will experience a force multiplication effect. Even though the pressure on both cylinders is the same, the force which is produced on the larger cylinder will be higher, proportionally higher based on the area of the cylinder.
Front View
Back View
bottom view
Top View
Left View
Right View
Isometric View
