Pegasus lifting planetary hoist maintenance

Pegasus lifting planetary hoist maintenance

08

2024

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04

Pegasus lifting planetary hoist use points

Pegasus lifting planetary hoist use points

03

2024

/

04

Key points of safe operation of electric hoist

Key points of safe operation of electric hoist

01

2024

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04

Brief Analysis of General Working Principle of Electric Hoist

Brief Analysis of General Working Principle of Electric Hoist

Electric hoist is commonly used in monorail crane, jib crane and single beam crane, because the electric hoist structure is simple, convenient manufacturing and maintenance, good interchangeability, easy operation, so widely used in the factory. Electric hoist according to the purpose can be divided into general electric hoist and special electric hoist two, two kinds of electric hoist working principle is as follows: Start the lifting motor first to lift the heavy object to an appropriate height, then start the running motor to transport the heavy object to the designated position, and the running trolley walks on the lower edge of the single I-beam beam. When walking, a motor is used to drive the wheels on both sides of the car. Due to the walking speed ratio

19

2019

/

10

How to solve abnormal motor start

How to solve abnormal motor start

When an HBT60A concrete pump stops and starts again after pumping, the motor cannot start. It sounds as if the power is insufficient. At the same time, the AC relay of the star-connected motor power supply "snaps" and snaps. At first, it is suspected that the power supply voltage is insufficient or the phase is small. After inspection, the three-phase voltages are very stable. When we replace the AC relay, the relay no longer beats, but the motor starting sound is still abnormal. After the motor power supply is converted into triangular connection, the motor starting sound returns to normal, but the pressure in the main oil circuit of the machine remains high, while the pumping operation is normal. After stopping pumping, the pressure in the main oil circuit is still

09

2019

/

10

Level of motor protection

Level of motor protection

The motor protection level is expressed by IPXX. The first number after IPXX indicates dustproof, and the numbers are 0, 1, 2, 3, 4, and 5. The larger the number, the higher the dustproof level. The second number indicates waterproof, the numbers are 0, 1, 2, 3, 4, 5, 6, 7, 8, the larger the number, the higher the waterproof level.

09

2019

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10

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