Refined metals HS code references

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• What are the types of truck cranes
• 5, What are the models of car cranes?
• 6, What parts does the crane consist of? What is the function of each part?

What kind of lifting equipment are there?

1. Heavy equipment can be divided into several categories according to different structures, such as light and small lifting equipment, elevators, cranes and overhead monorail systems. Light and small lifting equipment mainly includes lifting pulleys, slings, jacks, manual hoists, electric hoists and ordinary winches, most of which are small in size, light in weight and easy to use.

2. Light and small cranes mainly include lifting pulleys, slings, jacks, manual hoists, electric hoists and ordinary winches, most of which are small, light in weight and convenient to use. Except for electric hoists and winches, most of them are driven manually, which is suitable for places where work is not heavy.

3. Bridge cranes mainly include: girder cranes, bridge cranes, gantry cranes, semi-gantry cranes, etc.

four, tower crane Tower crane is a common construction crane, which has the characteristics of large lifting weight, small area and wide working range. The operation steps are as follows: assemble the tower crane and fix it on the construction site. Control the lifting, rotation and amplitude of the tower crane through the console or remote control.

5. Bridge cranes are lifting equipment for lifting materials over workshops, warehouses and feed yards. Because its two ends are located on tall cement columns or metal brackets, it is shaped like a bridge.

6. (1) Light and small lifting equipment mainly refers to cranes with only one lifting device. There are jacks, pulleys, electric manual hoists, etc. ( 2) Crane refers to a crane that can be raised vertically and carried horizontally. Such as overhead cranes (also known as driving or overhead cranes), truck cranes, tower cranes, etc.

What are the classifications of truck cranes?

According to the type of leg: frog leg, x-shaped leg, h-shaped leg.

Most of them are classified according to lifting weight: light truck cranes (lifting weight less than 5 tons), medium truck cranes (lifting weight 5-15 tons), heavy truck cranes (lifting weight 5-50 tons), super heavy truck cranes (lifting weight more than 50 tons). Due to the requirements of use, its improvement ability tends to increase.

There are thousands of models of car cranes from 1t-1200t. Generally, the number in the name of the car crane is the tonnage. For example, qy50k-1 is the k series 50t truck crane.

Tire crane Tire crane is a moving arm rotary crane that uses a tire chassis to walk.Tire crane is a kind of all-turn crane whose crane structure is installed on a special chassis composed of heavy tires and wheel axles. Its superstructure is basically the same as that of a crawler crane. Car crane is also a kind of tire crane.

Types of cranes: movable: automobile cranes, crawler cranes, walking cranes, etc. Fixed type: dock crane, tower crane, gantry crane, etc. The name crane is a unified title. Crane is a kind of lifting and handling machinery widely used in ports, workshops, electricity, construction sites and other places.

Light and small lifting equipment such as jacks, pneumatic hoists, electric hoists, balance hoists (also known as balance cranes), hoists, etc. Bridge-type cranes such as beam cranes, etc. Boom-type cranes such as fixed-turning cranes, tower cranes, truck cranes, tire cranes, crawler cranes, etc.

How to start learning car hoisting from scratch?

1. What should be paid attention to in the chassis of the truck crane? The larger the crane chassis, the larger the contact surface with the ground and the more stable it is. It should be stable. The lifting weight of the truck crane. The pole of the truck crane stands up, and the closer the lifted goods are to the center of the pole, the greater the lifting weight at this time, and there is no need to subtract the cost. Self-respect.

2. Learn the theory first. Understand cranes theoretically and recommend several books, "Crane Design Guidance" and "Crane Structure and Maintenance". Understand the structure of the crane, the working level, and the structural principle of each mechanism. Next, understand electrical knowledge, and at the same time learn how to read mechanical drawing and circuit diagrams.

3. The method of learning to drive from scratch: After learning in the driving school, we will develop a bad habit, that is, when parking, we should step on the clutch first and then step on the brake. In fact, this is an incorrect method.

4. The essentials of the first type of parking space must be poured in. You can learn from the "moving the garage" method learned in the driving school, so that the rear of the car can be in place smoothly. There are two ways to get the second parking space in place, one is to drive in the right direction, and the other is to pour in. It is relatively simple to drive in the front. Pay attention to the distance from the left and right cars, so as not to prevent the left and right cars from opening the door.

What are the types of truck cranes

What are the types of cranes: type introduction. There are many kinds of cranes, and the classification skills are also different.

The types are as follows: (1) Mobile type: car crane, crawler crane, line crane, etc. (2) Fixed type: dock crane, tower crane, gantry crane, etc. Introduction to crane: Crane is a common name for crane, which is a kind of lifting and handling machinery widely used in ports, workshops, electricity, construction sites and other places.

According to the structural form of the boom, it is divided into folding boom, telescopic boom and truss boom truck cranes. What are the types of truck cranes: Working principle: There is a running roller on the inside of the boom, and a steel wire rope is wrapped around the roller. The wire rope pulls out the front boom through the pulley at the top of the next boom, and so on.

What are the models of car cranes?

1. There are thousands of models of car cranes from 1t-1200t. Generally, the number in the name of the car crane is the tonnage. For example, qy50k-1 is the k series 50t truck crane.

2. The tonnage of automobile cranes is roughly divided into 8T, 12T, 16T, 20T, 25T, 30T, 35T, 50T, 70T, 100T, 120T, 160T, 200T, 300T, 400T, 500T and 800T.A car crane is a kind of crane mounted on an ordinary car chassis or a special car chassis. Its driving cab is set separately from the lifting control room.

3. Generally, it is divided according to the tonnage of the crane. Small-tonnage cranes below 15t, medium-tonnage cranes are 16-45t, and large-tonnage cranes with a rated lifting weight of more than 26t. Small-tonnage cranes mainly include 8 tons, 16 tons, 25 tons, 50 tons, 70 tons and 100 tons.

What parts does the crane consist of? What is the function of each part?

1. Cranes are usually composed of three parts: one is the frame; the other is the mechanism (including lifting mechanism, walking mechanism, rotation mechanism, swing mechanism, etc.);The third is the control system. Frame The frame is mainly composed of a bridge frame, a small car frame, a control room and an escalator, which constitute the main body of the crane.

2. The crane is mainly composed of a hydraulic system, a resistance arm and a power arm. In the hydraulic system, there are cylinders and pistons, oil inlet pipes and oil outlet pipes. The piston is in the cylinder, and the position of the piston is adjusted through the hydraulic oil at both ends of the piston. The outer end of the piston is connected to the power arm, and the power arm is connected to the resistance arm through the fulcrum, and there is a heavy hook on the resistance arm.

3. Cranes are usually composed of three major parts: one is the rack; the second is the mechanism (including the lifting mechanism, the operating mechanism, the rotation mechanism, the variable amplitude mechanism, etc.); and the third is the control system. 1. Rack The rack is mainly composed of bridge frame, cart frame, control room, escalator and other parts, which constitute the main body of the crane.

4. The tower crane consists of three parts: working mechanism, metal structure, power device and control system. The composition and function of these three parts are summarized as follows. Working mechanism of tower crane The working mechanism of tower crane is usually composed of lifting mechanism, variable amplitude mechanism, rotation mechanism, hydraulic lifting mechanism and walking mechanism.

5. Ordinary overhead cranes are generally composed of lifting carts, bridge frame operating mechanism and bridge frame metal structure. The lifting cart is composed of three parts: the lifting mechanism, the operation mechanism and the cart frame. The lifting mechanism includes motor, brake, reducer, reel and pulley group.

List of catalogs of this article:

• 1,Refined metals HS code references What kind of listing equipment are there?
• 2, What are the classifications of truck cranes?
• 3, How to start learning car hoisting from scratch?
• 4 、
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