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  2024-06-13

  Introduction of Electric Cable Pulling Winch

  Introduction An electric cable pulling winch has a strong lifting capacity, easy speed change, and convenient and safe operation. It is a traction equipment often used in lifting operations. It mainly comprises drums, a reducer, a motor, and an electromagnetic brake. There are many types of electric winches. According to the drum, they are divided into a single cylinder and double cylinder; according to the transmission mode, they are divided into reversible gearbox type and friction type; according to the lifting capacity, they are divided into 0.5t, 1t, 2t, 5t, 10t, 20t, etc. Installation of electric cable pulling winch How well the electric winch is installed directly affects the safe use of the equipment and the reliability of hoisting and transportation. When installing, its location should be selected with a wide field of vision, easy operation, and easy observation by the commander. When used with a mast, the distance between the electric winch and the mast shall not be less than the height of the mast. There are usually three methods for fixing an electric winch: 1. Fixed basis method. Place the electric cable pulling winch on the concrete foundation and fix its base with anchor bolts. This kind of...

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  2024-05-28

  Metallurgical Electric Hoist

  The metallurgical electric hoist is an indoor lifting equipment and one of the most commonly used mechanical equipment in metallurgical work. Due to the small size of the metallurgical electric hoist, it mainly relies on the I-beam track on the roof to operate. Therefore, its track needs to be inspected regularly to avoid wear or obstacles on the track, which will affect the smooth production. How to solve the problem when the track of the metallurgical electric hoist is damaged during operation? When the track of the metallurgical electric hoist is worn, you must first understand the wear situation to see if it is worn on the side of the track or the front. The ways to deal with wear in different places are different. The I-beam side of the metallurgical electric hoist is worn ① The diameter deviation of the electric hoist trolley is large, causing the trolley to run skewed on the I-beam track. ② The parallel deviation of the driving wheel hole of the trolley is large, causing the trolley to run unbalanced. ③ The concentricity deviation between the driving wheel, and the driven wheel axis of the car is large, causing the car to run unevenly. Solution:...

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  2024-05-14

  Industrial Jib Crane – main part and how to choose

  The industrial jib crane is a light-duty crane and a practical light workstation lifting equipment. It has the characteristics of high efficiency, energy saving, trouble-saving, small footprint, easy operation and maintenance. It is especially suitable for short distances, frequent use, and intensive lifting operations. Furthermore, it is mainly composed of a column, a rotating arm, a support arm and a reducer, an electric chain hoist, and electrical parts. Column of industrial jib crane The column supports and fixes the rotating arm of the cantilever crane. Its upper and lower supports are composed of single-row tapered roller bearings that bear radial force and axial force. Rotating arm of industrial jib crane The rotating arm is welded by a combination of I-beam and support. Its function is to realize the horizontal movement of the electric or manual trolley and the up-and-down lifting of the electric hoist and rotate around the column. The support arm and reducer The support arm supports the rotating arm and increases the bending resistance and strength of the rotating arm. The reducer drives the roller to realize the electric rotation of the cantilever crane. Electric hoist on the swing jib crane The electric hoist lifts heavy objects and...

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  2024-04-24

  Analysis of Common Faults of Electric Hoist and Suggestions for Improvement

  Causes of electric hoist failure The mobile flexible cable breaks: the reason is that the cable is fatigued and aged under multiple cycles of stress and high temperatures. Control cable disconnection: due to the long control cable and the large moving distance of the electric hoist, disconnection, and loosening of wiring are often caused by the operator’s tugging. The contactor contacts are burned out. For motors that repeatedly work for short periods of time, the equivalent heating current is too large. In addition, during the conversion process, the phase commutation is too fast, and the arc freewheeling of the contactor can easily cause a phase-to-phase short circuit and burn. Bad contactor contacts. For general motors, the operating current is less than the rated current. Although the starting current is 4 – 7 times the rated current, the time is short after all, and the damage to the contacts is not great. When designing the contactor, as long as the contact capacity is greater than the rated current of the motor 1.25 times is sufficient. However, the electric hoist motor is a motor with special working conditions, such as frequent starts and stops under heavy loads, reverse braking, poor heat dissipation,...

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  2024-04-16

  General Single Pole Busbar Installation Method

  The installation steps of single-pole sliding contact line are as follows: To install the trolley line, first familiarize yourself with the overview and structural characteristics of all cranes, and then set the workshop length according to the on-site power input point before installation. The installation procedures and requirements are listed below, taking the single-pole trolley line as an example: 1. Install the sliding contact line bracket, and install the angle steel bracket on the track beam at the specified spacing using welding or expansion bolts. The erection of the bracket is the key to the installation quality of the trolley line. It is an important link to ensure the smoothness and usability of the trolley line. The flatness of the bracket along the entire line must be ensured. The angle steel must have the same extension size. The angle steel must be parallel and not skewed. The plane of the angle steel with the rectangular hole should be in a horizontal plane, and the square hole should be on a line. Generally, steel wires can be used for leveling and alignment. The distance between the two supports of the light sliding contact line is <1.5m. 2. Install the lifting rack...

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  2024-04-03

  Breakdown and Precautions of New Overhead Traveling Cranes and Overhead Gantry Cranes

  Generally, newly purchased overhead traveling cranes and overhead gantry cranes will go through a running-in period during use. During the running-in period of new cranes, problems such as rapid wear, poor lubrication, and loose parts will occur. Therefore, when using a crane during the running-in period, attention should be paid to controlling the number of operating errors and avoiding lubrication. Defective, check regularly to avoid loosening and leakage. Below, Dejuncranes company will give you a detailed introduction to the faults that will occur during the running-in period of the new crane and the precautions during the running-in period. What faults will occur during the running-in period of a new overhead traveling crane and overhead gantry crane? Wear quickly of new overhead traveling cranes and overhead gantry cranes Due to the influence of factors such as processing, installation, and adjustment of new machine parts of the crane, its friction surface is rough, the contact area of the matching surface is small, and the pressure-bearing condition of the surface is uneven. During the operation of the crane equipment, the concave and convex parts on the surface of the parts fit and conflict with each other, and the metal chips that fall off...