The drag chain mainly plays a certain role in pulling and protecting the cables on the machine tool equipment. What kinds of drag chains are commonly used on the machine tool? It can be roughly divided into steel drag chain, conduit maintenance sleeve and rectangular hose. What are the performances and uses of the common types of drag chains on these machine tools? Due to the extensive application and excellent characteristics of drag chain, it can be perfectly applied in machine tools.

Steel drag chain

1、 Structure

The cable or rubber tube and the drag chain are free from relative movement and distortion. The shape of the chain wrench after chrome plating is novel, reasonable, smart and high strength. The main body of the TL series steel drag chain is composed of the chain wrench (high-quality steel plate chrome plating), the support wrench (extruded aluminum alloy), the axle pin (alloy steel) and other components. It is rigid without deformation, easy to use, reliable and easy to disassemble and assemble. In particular, it uses high-strength wear-resistant materials, alloy copper as shaft pin, which improves the wear-resistant strength of the product, makes bending more flexible, has less resistance, and reduces noise, so as to ensure that it will not deform and sag after long use.

2、 Features

1. The drag chain can adapt to the maximum moving speed of 40m/min.

2. The noise sound pressure level is not more than 68 dB, including when the drag chain is at the maximum moving speed.

3. The safe service life of the drag chain shall not be less than 1 million times (reciprocating).

Plastic drag chain

1、 Structure

1. The drag chain looks like a tank chain and is composed of many unit links, which can rotate freely.

2. The inner height, outer height and pitch of the same series of drag chains are the same, and the inner width and bending radius R of drag chains can be selected differently.

3. The unit chain link is composed of left and right chain plates and upper and lower cover plates. Each section of the drag chain can be opened, which is convenient for assembly and disassembly, without wiring. After the cover plate is opened, the cable, oil pipe, gas pipe, water pipe, etc. can be put into the drag chain.

4. In addition, spacers can be provided to separate the space in the chain as required.

2、 Features

1. Material: reinforced nylon, with high pressure and tensile load, good toughness, high elasticity and wear resistance, flame retardant, stable performance at high and low temperatures, can be used outdoors.

2. Resistance: oil resistance, salt resistance, and certain acid and alkali resistance.

3. Operating speed and acceleration (the specific speed and acceleration depend on the operating conditions).

4. Long service life.

Purpose of drag chain

1. It is suitable for reciprocating movement, and can pull and protect the built-in cable, oil pipe, air pipe, water pipe, etc.

2. Each section of the drag chain can be opened for easy installation and maintenance. Low noise, wear resistance, and high-speed movement.

3. Drag chain has been widely used in electronic equipment, fire fighting equipment, stone machinery, glass machinery, door and window machinery, manipulator, overweight transportation equipment, automated warehouse, etc.

Selection principle of drag chain

1. Determine the height hg of chain plate and the model of drag chain according to the maximum aperture Dma of the support plate.

2. The inner cavity diameter of the support plate D1=d ＋ is about 0.1d (integer). Where d=outer diameter of wires, cables, liquid and gas hoses.

3. Determine the bending radius of the support plate type drag chain according to the functional requirements of the drag chain:

(1) When the size of the pipe joint of the pipe cable is larger than the hole diameter of the inner cavity of the support plate or it is necessary to disassemble and repair frequently, the separated type support plate can be selected;

(2) When the drag chain needs to bear large pipe and cable loads, the high-strength support plate type - monolithic type shall be selected;

(3) When there are many specifications and varieties of pipe cables to be installed, the frame type support plate can be selected.

4. When the use of machine tool drag chain is restricted or affected by the environment, steel belt protection support plate is required.

5. The width b1 of the support plate is determined according to the number of installed pipe cables, so as to know the drag chain width B.