Overhead Crane Cab

1. Product Introduction:

Double girder overhead crane cab

 

1. Double girder overhead crane cab operating room separate type, closed, insulation three kinds.

 

2. The platform entrance of the double-beam bridge crane control room is divided into three kinds: side, end and top.

 

3.H. Increased height for the bumper.

 

4. Double girder overhead crane cab is divided into indoor and indoor two kinds. When ordering, the highest and lowest temperature of the working environment and the type of power supply should be indicated.

 

5. The overload limiter, large screen display and various protection devices are added to further increase the safety during use.

 

6. The double-beam bridge crane generally adopts the air operation mode, which is different from other ground operation cranes.

 

Air-operated electric double beam bridge crane

 

The air operation is a separate small operation room under the crane, while the ground operation is operated by the operator with a remote control.

 

2. Component:

 

The hoisting action of the crane, the operation of the trolley and the operation of the trolley work together to form a three-dimensional space, so that the material can be hoisted to any position in the hoisting workspace.

 

Large-tonnage overhead cranes generally have two sets of hoisting systems, which are mainly composed of box bridges, hoisting trolleys, cart operating mechanisms and electrical control systems. The retrieval device is the two hooks on the lifting trolley.

 

The trolley runs left and right on the girder, which is mainly used to move the lifted weight to a more precise position. The operation of the trolley is the same as that of the cart, but the directions that can be run are different. The running directions of the trolley and the cart are just perpendicular to each other.

 

3. Applicable Environment:

 

The Double Beam Eot Crane with Double Trolley Hook is suitable for lifting work in machining, assembly workshops, metal structure workshops, metallurgy and foundry workshops and various warehouses;

 

When used in the open air with rain-proof equipment, the total weight and wheel pressure of the outdoor crane will increase by about 5%. The crane is divided into two working systems: intermediate (A5) and heavy (A6) according to the busyness of use. When selecting, the technical requirements such as working system, working environment, temperature and type of power supply should be indicated.

 

 

3. Transportation:

 

Shipping way: by sea, air, land, and Express such as DHL, TNT, UPS, FEDEX. We will choose the suitable shipping method according to your requirements.

4. Establish an equipment inspection system

 

In order to ensure the safe operation of the crane, the first task is to inspect the crane

 

1. Daily inspection:

 

This project is carried out in conjunction with the crane operator handover system. The crane operators who take over the shift mainly inspect the important electromechanical parts of the crane, such as hooks, wire ropes, brakes of each mechanism, controllers, limiters of each mechanism and various Check whether the safety switch action is sensitive and reliable. The specific inspection items are as follows: Check whether the main power switch of the protection box has been cut off. Live inspection is strictly prohibited.

 

Check whether the wire rope has broken strands or broken wires, whether the drum and pulley are wound normally, whether there are any degrooving, knotting, twisting, etc., and whether the pressure plate bolts at the end of the wire rope are tightened. Whether there are cracks in the hook, whether the anti-loosening device of the hook nut is complete, whether the spreader is complete and reliable; whether the brake shoes of each mechanism's brake are close to the brake wheel, what is the wear condition of the brake shoe lining and brake wheel, and whether Whether the position plate is complete, whether the magnet stroke meets the requirements, and whether there is any jamming in the rotation of the rod. Whether the connecting bolts of the rotating parts of each mechanism and the fixing bolts of each component are tight. Check whether the wiring of each electrical equipment is normal, and whether the contact between the conductive slider and the slide wire is good. The crane checks whether the end limit switch is flexible and normal, and the safety protection switch is flexible and works normally. Check whether the rotation of each mechanism of the crane is normal and whether there are any abnormal sounds. Clean the equipment 15 minutes before leaving get off work and maintain a good sanitary environment.

 

2. Weekly inspection

 

Several operators operating the crane jointly conduct a comprehensive inspection of the crane every weekend. The weekly inspection includes:

 

Contact and corrosion conditions of contactors and controller contacts.

 

Wear of brake pads.

 

The connection of the keys on the linkage and the tightening of the screws.

 

The wear and tear of steel wire ropes that have been used for more than half a year.

 

Double brake lifting mechanism, the braking torque of each brake.

 

Whether each electrical limit switch is sensitive and reliable.

 

3. Monthly inspection

 

Crane operators and maintenance personnel (electricians, fitters) jointly inspect the crane. In addition to weekly inspections, the monthly inspections also include the following:

 

The tightening condition of base screws of motors, reducers, bearing supports, angular bearing boxes, etc. and the wear condition of motor brushes

 

The tightening condition of the screws of the wire rope pressure plate, the wear and lubrication of the wire rope after more than 3 months of use, the wear and tear of the wire insulation layer at the nozzle

 

Lubrication condition of each limit switch shaft

 

The amount of lubricating oil in the reducer

 

Wear of the wire rope at the balance wheel

 

Lubrication conditions of open gear rotation

 

4. Half-year inspection

 

It can be combined with the first-level maintenance of the crane and carried out by operators and repairmen together. In addition to weekly and monthly inspections, the half-year inspection should also include the following:

 

The tightening conditions of the control panel, protection box, controller, resistors, terminal blocks, and wiring press screws. The tightening conditions of the end beam screws.

 

The lubrication condition of the brake solenoid cylinder, the oil quantity and quality of the hydraulic brake solenoid

 

Insulation of all electrical equipment

 

Deformation of metal structure and presence or absence of welding

 

Wheel gnaw condition

 

5. Annual inspection

 

It can be combined with the secondary maintenance of the crane. In addition to all the half-year inspections, you should also check whether there are cracks in the metal components and whether the welds are rusted; the wear status of the large and small wheels; measure the span of the cart and the span difference of the cart track, and measure The static winding of the main girder and static and dynamic load tests are carried out; the crane is fully lubricated.

 

Establish equipment responsibility system and evaluation system

 

In order to ensure that the daily maintenance of lifting equipment is carried out in a practical manner, each unit should establish a job responsibility system with fixed machines and fixed personnel. The advantages of the fixed machine and fixed personnel position responsibility system are as follows:

 

It is convenient to strengthen the operator's sense of responsibility and strengthen the operator's sense of responsibility for the correct use and careful maintenance of the equipment.

 

It is convenient to carry out red flag competitions for maintenance equipment, improve the integrity rate of the equipment, and maintain the good condition of the equipment. Dedicated operation makes it easier for the operator to understand the peculiarities and defects of the equipment, so that the equipment can be used to its fullest potential.

 

According to the principle of maintenance when used, cranes operated by one person in one shift are self-service and self-maintaining; cranes operated by several people in shifts are maintained by individuals in each shift. The system of appointing people and machines is determined by Yi Jing and does not allow casual changes. If changes are needed due to special circumstances, the operator should obtain approval from the leader and go through the change procedures before operating.

 

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