In order to understand the structure of the forklift and its working principle, the two types of forklifts, power and internal combustion, are analyzed and compared with their respective advantages and disadvantages.

First, the overall structure of the forklift

There are many types of forklifts, but regardless of the type of forklift, basically consist of the following four parts:

(1) Power section. Powered by the forklift, it is usually mounted on the rear of the forklift and has a balanced counterweight.

(2) Chassis. The power of the power unit is accepted to move the forklift and ensure its normal walking.

(3) Working part. Used to fork and lift goods.

(4) Electrical equipment.

Different types of forklifts are formed due to the difference in the structure and installation position of the above four parts that make up the forklift. Counterbalanced forklifts are one of the most common forms of forklifts. Below we take this type of forklift as an example to introduce the composition of each part of the forklift.

1. Power section

The power part of the internal combustion forklift is mostly powered by a reciprocating piston internal combustion engine. It has a gasoline engine, a diesel engine and a liquid petroleum gas engine; the power unit of the electric forklift is composed of a battery and a DC series motor. In recent years, new forklifts have been introduced, and their power is dual fuel or dual power.

The drive train is a device that receives power and transmits power to the drive train. It generally has two types of mechanical drive trains and hydromechanical drive trains. The former consists of a friction clutch, a gear transmission, a universal transmission and a main transmission and a differential mounted in the transaxle; the latter replaces the friction clutch with a hydraulic torque converter, and the rest is the same as the former. In recent years, a new type of forklift has been introduced, using a full hydraulic transmission system. Reduces the components of the drive and ensures reliability.

2. Chassis part

The driving system is a device that ensures the rolling operation of the forklift and supports the entire forklift. It consists of a bracket, an axle, a wheel and a suspension device. The front axle of the forklift is a drive axle. This is to increase the axle load of the front axle during loading and unloading. In order to improve the adhesion quality on the drive wheel, the ground adhesion is increased to ensure that the driving force of the engine is fully utilized. The rear axle is a steering axle. The steering device is located in front of the driver, and the lever member such as the shift lever is placed on the right side of the driver's seat.

The steering system is a system for moving the forklift in a direction determined by the driver's will. The steering of the forklift can be divided into a mechanical steering system and a power steering system depending on the energy required for steering. The former uses the driver's physical energy as the steering energy, and is composed of a steering gear, a steering transmission mechanism and a steering mechanism. The latter is a steering device that uses both the driver's physical energy and engine power as a steering energy source. Under normal conditions, the forklift turns to the required energy, only a small part is provided by the driver, and most of it is through the engine. Provided by a steering booster. However, when the steering force device fails, it should generally be possible for the driver to independently undertake the vehicle steering task. When the forklift is in operation, the steering is varied, and in order to reduce the driver's handling burden, the internal combustion forklift uses a power steering device. Commonly used power steering devices include three types of integral power steering, semi-integral power steering and steering booster.

The brake system is a system that slows or stops the forklift. It consists of a brake and a brake transmission. Braking system can be divided into three types: human braking system, dynamic braking system and servo braking system according to braking energy. The former uses the driver's physical energy as the braking energy; the middle is completely dependent on the engine's power to convert the potential energy into the air pressure or hydraulic form; the latter is the combination of the former and the middle.

On the counterbalanced forklift, the rear of the forklift is provided with a counterweight to balance the quality of the cargo at the front of the forklift. The power unit (internal combustion engine) or battery of the forklift is usually installed at the rear of the forklift to partially balance the load.

3. Working part

The working part is the direct working mechanism of the forklift for loading and unloading operations. It consists of the following 5 points:

(1) Picking tools. It is a variety of work attachments represented by forks, used to fork, pick up, and shovel goods.

(2) Lifting shelves. Used to install forks or other work attachments, and drag the goods together to lift.

(3) Door Frame. It is the skeleton of the working device, and most of the working parts are mounted on the gantry. The two-section gantry consists of an outer gantry and an inner gantry that can be lifted up and down along the outer gantry; the three-section gantry consists of three gantry inner, middle and outer.

(4) Gantry tilt mechanism. The front and rear tilt of the gantry is mainly composed of a tilting cylinder.

(5) Lifting mechanism. Drag the power unit and the traction device that lifts the cargo up and down. It is mainly composed of a sprocket, a chain and a lifting cylinder that drives the shelves to lift.

(6) Hydraulic control system. It is the sum of the lifting of the cargo and the inclination of the gantry and the other actions performed by the hydraulic system to achieve timely control. It consists of hydraulic components, piping and steering mechanisms.

4. electrical equipment

Electrical equipment consists primarily of batteries, forklift lighting, various warnings, alarm signaling devices, and other electrical components and wiring. The battery forklift has a series of DC motors; the internal combustion engine forklift has an electric starter; in addition, the gasoline engine forklift also has a high-voltage electric spark ignition device.

Second, the working principle of the forklift

Generally, forklifts are mostly balanced forklifts, just like the seesaw, so you must first find the center of gravity of the load. This center of gravity is called the load center, which is half the length of the pallet. For example, the size of the tray is 1000mm in length (D) and 1200mm in width (W), then the center of the load is 500mm. The load center of the forklift is mostly 500mm or 600mm, so to know the standard load center of the forklift, you must find out from the specification table or forklift chart of the forklift. The tonnage of the forklift refers to the maximum load value of the forklift loading and unloading and handling goods. It is designed according to the structural strength hydraulic system pressure and stability of each part. The stability of the counterbalance forklift is simply the principle of leverage (the seesaw). In the critical state, if there is a slight force on the cargo side, the forklift will roll forward.

Drip Tray

Drip trays are often made of stainless steel. Other alternative materials include brass bronze, aluminum etc. The surface treatment method includes zinc plated, nickel plated, tin plated, brass plated, silver plated, gold plated, anodizing, Heat treatment, salt fog test, chain plating, hanging plating, rolling plating, etc.

Drip trays are high customizable products (in different material, shape, size, height, function etc). We could produce drip trays according to your own idea. We have experienced engineers to study your drawing and calculate the cost for you. If you don`t have your drawing of product, we could prepare drawing according to your idea as well.

drip tray,Kitchen Sink,Steel Kitchen Sink,Single Bowl Sink,Stainless Steel Sink Drip Tray,Drip Tray With Drain,Drip Tray Beer,Drip Tray Stainless Steel

Huiye Hardware & Electrical Equipment Company Ltd. , https://www.hardwarehuiye.com