The Future Developing Direction of Crane Produced by Zhengzhou Huazhong Construction Co., Ltd(Ⅱ)

1.Improve the crane structure and reduce self-weight
The honeycomb beam gantry crane produced by Zhengzhou Huazhong Construction Machinery Co., Ltd. uses the computer optimized design to improve the technical performance of the machine and reduce self-weight. The main beam employs the design of unique honeycomb girder beam design, featuring light self-weight, large load, high wind-resistance and high rigidity as well as low deflection. So it is quite safe. Reliable and unique pin connection, short-time installation and Flexible legs, easy to transfer to another site. Frequency-converter can be added to meet customers’need. Imported and high-quality electronic components also ensure the safety of hand operation.

2. Develop towards the large-scale
Since the state pays more attention to and funds more in infrastructure, a large number of medium-sized bridges have been constructed. And the required tonnage becomes bigger and larger. The two gantry cranes of 1200t are manufactured by Zhengzhou Huazhong Construction Machinery Co., Ltd. Currently, with the gradual introduction of national policy, there are many large-scale hydropower, medium and large to be built, which can prove that the need of the crane of large ton and high performance will be huge.

3.Make full use of international and national technology

The Future Developing Direction of Crane Produced by Zhengzhou Huazhong Construction Co., Ltd(Ⅰ)

Along with the rapid development of modern science and technology, the modern design and manufacturing craft has been greatly improved. The competition of technology becomes increasingly important in the market full of fierce competition, which pushes the technology of hoisting machinery enter a new phase.
Some leading companies strive to introduce, process and absorb the advance technology in the world, based on which they closely follow the international developing tendency and they keep employing new theories, new technologies as well as the new methods. They never give up promoting and optimizing the design methods. What’s more important, the products become more automated and intelligent, on the road of information technology development, the sets, large-scale systems and common development, paying more attention to the visual quality such as product rationalization relationships, modeling, painting and others, which helps to improve operational efficiency and operational safety.
Zhengzhou Huazhong Construction Machinery Co., Ltd was established in Zhengzhou, Henan province, China in 1992 with registered capital about USD 6,000,000. It covers an area of about 70,000 square meters with 3 factories. Up to now, it has 650 employees and 86 professional technicians.
The company had acquired ISO 9001 International Quality System Authentication in 2000 as well as has been awarded many certificates of honor by China government agencies. Meanwhile, our company develops cooperation with famous universities such as Xi’an Jiaotong University, Southwest Jiaotong University, Wuhan University of Technology and Dalian University of Technology, which strengthens our technical research power to meet our customers’ different needs of hoist and construction machinery.

Which Measures Should Be Taken When the Bridge Build Crane Perform in the High Air

The bridge building crane often perform in the air, an improper measure may bring in serious result. The technician from Zhengzhou Huazhong Construction Machinery Co., Ltd will tell you the following tips:

The bridge building crane is a kind of equipment that places the precast girder on the bridge pier. And it is also a kind of lifting crane, because its main function is to lift the girder and then place online casino the girder in the right place.
1.The model of the bridge building crane should meet the need of the construction structure. Before it is being put into operation, it should be checked by the relative authority and gain relating certificates.
2.The stress-bearing parts of the bridge building crane should be checked and proved by the experts.
3.The protection of the bridge side face should be taken.
4.Each connecting part of the bridge building crane should be checked.
5.The trail of lifting objects should be done after the assembly of the bridge building crane is completed.

Assembly Precautions of the Bridge Building Crane

1. The assembly should be executed in accordance with the technic proposed ahead of time.
2. The commander, performer as well as the checker should be in position and work under the same commander.
3. The situations of the assembly equipment should be checked closely (Especially, the state of the lifting devices, the steel wire rope and the casino online strapping joints should be checked regularly.)
4. The lifting point and the auxiliary structure of the lifting devices should be well chose. The lifting capacity of the crane should not be over the designed lifting capacity, which should be paid much attention to. Otherwise, the injury accidents may happen.
5. Each part of the crane should be in the right position and the connecting piece in the air should be fixed, firm and effective, and should meet the installation specification requirements.
6. The records should be well kept in the process of assembly and the unforeseen circumstances should be dealt with properly.

Which Factors Influence the Price of the Bridge Building Crane

The bridge building crane is a kind of equipment that puts the precast girders on the bridge piers, which makes great contribution to the bridge construction in our country. Due to the fast development of the high-speed railway, more and more bridge building cranes are used in the railway construction. As a result, there appear more and more manufacturers and the prices of the bridge building crane differ a lot. Why should that happen? The following are the factors that influence the price of the bridge build crane.
1. The brands. The famous brand can ensure not only quality but also the service. You can get more guarantees from the large brands, which causes the differences in brands.
2. The models. Each mode caters to one kind of customer group. The models vary according to the different needs. And hence, the costs are different.
3. New or old equipment. The new equipment can use the new tech and better components, which increases the cost. As time goes by, the price will decrease gradually with the popularity of products.
The important purpose of Zhengzhou Huazhong Construction Co., Ltd features “Become Creative, Become Better”. Welcome to our company to buy the bridge building crane and we will provide sound service for you.

Advantages of the Walking Type Bridge Building Crane

Zhengzhou Huazhong Construction Machinery Co., Ltd is a professional company producing bridge erecting crane, which receive well popularity among customers. Based on the need of the market and the requirements of the actual construction situation, combined with the existing experience and merits of other company’s products, the walking type bridge building crane is a new kind of bridge erecting crane. Lots of people are curious about the merits of the walking type bridge building crane.
Second, it does not need to pave the longitudinal rails. It not only can reduce the stress of bridge, but also can save the cost of construction. And therefore, it has a wide adaptability for the box girder. Front and middle legs can be adjusted randomly and core plate with adjustable angle which can adapt the erection of curved bridge and slope bridge. According to angle of slopebridge, the user can adjust the front and middle legs when slope bridge is erected. Therefore, it can be used for 45 ° and any angle slope less than 45 °.
Above all, the main beam of the walking type bridge building crane produced by Zhengzhou Huazhong Construction Machinery Co., Ltd employs the special structure of the honeycomb girder. It is self-light and highly wind-resisting with huge lifting capacity.

HZP Series Segment Assembled Bridge Girder Launcher

1.The components of the HZP series segment assembled bridge girder launcher
The bridge building crane is made of the main beam, nose beam, the front trigger, the rear trigger, the auxiliary front trigger and rear trigger, hoisting crane, 10t bridge crane, the traverse luffing mechanism and other parts.

2.The advantages of the HZP seizes segment assembled bridge girder launcher

1)The bridge building crane is easy to operate, safe and reliable.
2)The main beam of the bridge building crane employs the structure of superimposed box girder, featuring high strength and low deflection.
3)The design is reasonable and the key structure makes use of the principle of symmetric design.
4)The bridge girder launcher can conduct the construction bidirectionally, which can feed the girder under bridge and at the rear part of the bridge.
5)The structure of the bridge girder launcher is simple and convenient to use.

The launching gantry produced by our company is developed based on the customer’s requirement. An example of specific model is as follows:

Main Technical Parameters:
Item/Data/Type
HZP1600
Span 50m、51m
Lifting height of the trolley 56m
Rated lifting capacity 140t
Max hanging weight 1600t
Max working slope 20‰
Max working transverse slope 20‰
Min curved radius 5500m
Traveling speed 0—1m/min
Speed of erection of girder 10(day/span)
Total power 180KW

How the Bridge Building Crane Building Bridge on the Highway

On the highway, the bridge building crane for highway is usually used to erect bridge. The HZQ honeycomb bridge building crane is one kind of newly made crane, which has gained the national patent. It especially fits the projects with small girder field. It can erect 4 pieces of girder and erect bridge in the opposite direction, which cuts the construction cost and period.
After the assembly of the bridge building crane is completed, the operating situations of each mechanism should be checked. After that, the main beam should be placed levelly and meanwhile, the precast girder should be transported to the end of the machine by the girder transport to pass the hole. The outrigger cylinder must be placed firmly so that the main beam can be elevated to the appropriate height; then insert the pin in the casing, and the legs (with sliding track) move forward 50 meters on its own to be in place. The legs and track are pad solidly; then the cylinders on the front and back legs are forced. After that, the pins are pulled out and the whole machine fell down, so that the main beam falls on the legs and rear bracket idler wheels。
The trolley are lifted to be beside the middle triggers. The mechanism of the middle triggers is started to make the main beam move forward for 20m.

Assembling Steps of Bridge Building Crane(Ⅰ)

 Step 1: the transverse walking track

1.The position of the sleeper: the sleeper should be placed transversely on the head of the bridge or the precast girder. The distance of the two sleepers should be about 0.5 meters, and they should be kept in the same line and paralleled with the bridge pier.

2.The position of the transverse track: each part of the track should be placed on the sleepers through the mobile crane or other lifting equipment.

3.Connection: the transverse track should be level.

4.Jacking pad: the gap between the transverse track and the sleeper should be filled firmly with the jacking pads. The jib of the transverse track should be paid special attention to. The safe technical requirements of this step are as follows:

(1) The transverse lifting should be longitudinally and no staff is allowed to stand under the objects being lifted.

(2) The sleepers under the transverse track should be fixed firmly to avoid the accidents of track rollover.

Reduce the influence of various erosion
The corrosion refers to the phenomenon of the chemical or electrochemical action between the metal surface and the surrounding medium. This corrosive effects will not only affect the normal operation of mechanical appearance of the device, but will corrode the internal mechanical parts. Things like the rain, air, chemicals and other mechanical parts go into the inside machinery through foreign channels, cracks, etc., corroding the mechanical parts inside, accelerating the mechanical wear and increasing the mechanical failure. Due to the invisible corrosive effects, they are easy to overlook, and thus cause greater harm. In use, according to the prevailing conditions of local weather and air pollution, management and operations staff should take effective measures to reduce the impact of chemical corrosion on the machinery, and the focus is to prevent the mechanical intrusion of rain and airborne chemical composition.
Ensure the normal work load
The size and nature of the work load of construction machinery has a significant impact on the mechanical loss process. Generally, the wear of the parts is in proportion to the load increased. When the load of the parts designed to withstand is higher than the average load, the wear will increase. In addition, with the same other conditions, there will be less wear and failure in the condition of the stable load rather than the dynamic load. Tests showed that compared with the stable and unstable load, the later will increase the wear of the cylinder twice. The engine work under the condition of normal work load,has a low failure rate and long life expectancy. Instead, the failure rate of the engine with overload increases significantly, and the life will be less than the designed specifications. The wear of the machinery working with stable load is less than that working with unstable load. Generally, the life of the generator used by the engine is longer than those used by bulldozers, excavators, etc.