Shop Bridge Crane

1. Product Introduction:

European double girder overhead shop bridge crane

 

The lifting capacity of the European double girder overhead shop bridge crane, when operated from the driver's cab, is six tonnages of 5T, 10T, 16T, 20T, and 32T. The three tonnages of 16T, 20T, and 32T are correspondingly equipped with 3T, 5T, and 10T tonnages as auxiliary hooks. There are only three tonnages of 5T, 10T and 16T when operated on the ground. The span is 10.5~22.5m. The European double girder overhead shop bridge crane has two forms of operation: ground and operating room. The operating room has two types: open and closed. It can be divided into left-hand and right-hand according to the actual situation. There are three entry directions: side, end and top. kind.

 

2.Compose

 

Double-girder bridge cranes generally consist of three major parts: mechanical, electrical and metal structures. The appearance of a double-girder bridge crane is like a single-span flat bridge with both ends supported on two parallel overhead rails and running in translation.

The mechanical part of the double-girder bridge crane: it is divided into three mechanisms, namely the lifting mechanism, the trolley operating mechanism and the cart operating mechanism. The lifting mechanism is used to lift objects vertically, the trolley operating mechanism is used to move the load laterally; the cart operating mechanism is used to move the lifting trolley and objects longitudinally to achieve the purpose of transporting and loading and unloading goods in a three-dimensional space. .

3. Product Features

 

The space utilization distance will be smaller, which is lower. Using a European-style crane will make the layout of the workshop fully utilize the workshop space and be more reasonable. The distance between the hook and the wall will be smaller, which will make the layout of the workshop more reasonable;

 

The crane is light in weight because it adopts the most advanced domestic technology, so its dead weight is far superior to previous cranes and will save more effective space;

 

The operating equipment of the crane is simpler. It uses a variety of artificially synthesized scientific and technological principles, and its development requires a lot of manpower, saves a lot of time, and the safety factor is also improved a lot. What is more advanced is that some lifting equipment is equipped with a display, which can effectively control the operation through the display, which is both safe and reliable. Now some companies are equipped with wireless remote control devices to control cranes, which provides guarantee for working in difficult environments;

 

After the frequency change of the crane, the efficiency of the crane has been improved. By using advanced technology, the stability of the crane has been greatly improved, and the large swing of the suspended objects has been avoided as much as possible. The safety factor has been improved, and the positioning accuracy of the reproduced objects has also been improved. precise. This type of crane is mainly used for many horizontal lifting tasks that require high accuracy;

 

This type of European crane has low maintenance costs. It should be because it adopts the green and environmentally friendly technology in today's society, so that the power consumption of the crane will be very low during use, and due to its good quality and low power consumption, it will reduce the losses caused by the failure of machine equipment and also reduce A lot of maintenance costs.

 

4. Applicable Environment:

 

The working levels of European double girder overhead shop bridge crane are mainly A5, A6, A7, A8, etc., which are suitable for lifting work in mechanical processing, assembly workshops, metal structure workshops, metallurgy and casting workshops and various warehouses; equipped with grab bucket, it is suitable for handling bulk materials in fixed span indoors or outdoors in metallurgy, cement, chemical industry and other industrial sectors.

 

 

5. Testing of European bridge cranes

 

Testing standards: The company's standard inspections and tests are carried out according to FEM/ISO/GB general bridge crane factory testing and quality control regulations to meet the needs of most customers;

 

Each crane component electronic control system undergoes full-function no-load testing in accordance with IEC standards to ensure that all electronic control systems are reliable and effective and reduce the workload of on-site installation and debugging;

 

Check the complete vehicle function through the factory no-load test, adjust the speed and hook distance, and review it by the quality inspection personnel;

 

If required, crane components can be inspected by a third party to ensure that the equipment is manufactured according to technical requirements. However, a fee for this part of the test will be charged;

 

If required, customer-specified inspections and tests can also be arranged for each component of the crane. Such tests and detailed test procedures must be approved by both parties before testing. However, a fee for this part of the test will be charged. Customers are welcome to be present during factory testing prior to shipping/delivery.

 

Double girder bridge crane parts:

 

The spare parts of double-girder bridge crane mainly include: bearings, pulleys, wheels, drive shafts, wire ropes, brake shoes, buffers, and couplings.

 

1. Hook group: It is a device for picking up objects. Note: There must be no cracks on the surface of the hook; wear and tear on the hook mouth and breakage of the pulley rim.

 

2. Pulley block: divided into movable pulley block and fixed pulley block. Note: Whether there are cracks on the surface; whether the working pulley rotates flexibly, and whether the pulley rim is broken. After the pulley is damaged, users often use brazing (brass water welding) or electric welding to repair it to continue using it. Due to uneven heating, the pulley will be deformed and the hardness will be uneven, which will cause abnormal wear of the wire rope and make it difficult to ensure the welding quality, so welding repair is not allowed.

 

3. Wire rope: Pay attention to: broken wires, broken strands, knots, rust, and pitting corrosion. Lubricate the drum with lithium grease.

 

4. Drum set: It is the component used to wind the wire rope in the lifting mechanism. The gear-connected disk drum group is a closed transmission with good grouping performance.

 

5. Reducer: It reduces the high speed of the motor to the working speed required by each mechanism. Commonly used horizontal reducers ZQ and vertical reducers ZSC. Note: Check the oil level; the reducer runs smoothly, there should be no beating, impact and violent or intermittent noise, and the sound is uniform; there should be no looseness in fastening parts and joints.

 

6. Coupling: used to connect two coaxially arranged or basically parallel rotating shafts to transmit torque while compensating for slight angular and radial offsets. Commonly used are CL type gear coupling, CLZ type gear coupling, and brake wheel gear coupling.

 

Note: Lubrication, tooth wear.

 

7. Brake: Generally installed on the high-speed shaft of the mechanism to reduce braking torque. The electric hydraulic block brake model is YWZ. Note: Lubricate the rotating pin part; observe whether the brake pad is burnt or has a burnt smell; whether there is oil on the friction surface of the brake wheel.

 

8. Wheel set: The wheels and angular bearing boxes are assembled together to form a wheel set. Wheels are divided into rims: double rim wheels, single rim wheels; note: rim wear. If the rim is less than 10 mm, it must be reported in time and observed closely.

 

9. Buffer: used to absorb the energy generated when the crane (or trolley) collides with the frame (or collision) or adjacent cranes on the same span. Divided into: rubber buffer and spring buffer. NOTE: Check that it is intact.

 

10. Resistor: An electrical appliance used to limit the current of the motor. The mechanism starts smoothly and reduces impact.

 

11. Conductive device: power conductive device and trolley conductive device. Safety trolley wire Current collector Cable trolley

 

12. Travel switch: According to its use, it can be divided into end switch (limit switch) and safety switch (protection switch).

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