Common Faults and Troubleshooting Methods of Bridge Crane

1. The brake fails (the brake torque is small, and the lifting mechanism slips the hook). Slipping occurs in the operating mechanism. The reason analysis and its solution are described as follows. 1) There is oil on the surface of the brake wheel, and the friction coefficient decreases, resulting in a decrease in the braking torque, so the car cannot be braked. Kerosene or gasoline can be used to clean the surface oil can be solved.

2022-01-24

What is the scrap standard of crane wire rope?

(1) According to the GB6067-85 standard, when the safety factor is less than 6, the number of scrapped broken wires of the alternating twisted steel wire rope is about 10% of the total number of steel wires of the steel wire rope. When the safety factor is 6~7, the number of scrapped broken wires is about 12% of the total number of steel wires of the steel wire rope. When the safety factor is greater than 7, the number of scrapped broken wires is about 14% of the total number of steel wires of steel wires, the number of scrapped broken wires of the same-direction twisted wire rope is half of the number of scrapped broken wires of the alternating twisted wire rope.

2022-01-24

What are the safety requirements in crane operation?

(1) The driver should concentrate on the operation, pay close attention to the surrounding situation, and shall not do anything unrelated to the work. (2) The driver shall not operate under any of the following circumstances: A Overload or object weight is not clear. Such as lifting embedded objects with unclear weight or pulling force, and oblique pull slanting, etc; B structure or parts have defects or damage that affect safe work, such as brake, safety device failure, hook nut anti-loosening device damage, wire rope damage to scrap standards.

2022-01-24

Common Fault Analysis of Crane

This paper analyzes seven aspects of the bridge crane that can cause mechanical failure, such as wire rope, drum and wire rope pressure plate, hook, reducer gear, brake, wheel and rail and safety accessories, and puts forward measures and suggestions to prevent the mechanical failure of the crane.

2022-01-24

Problems worthy of attention in load test of hoisting machinery

Load test is an important indicator to test the quality and safety performance of lifting machinery products. The load test can not only detect the deformation of the metal structure of the crane, such as the deflection value of the bridge crane, but also detect the effective situation of the crane safety device, such as the overload limiter, the movement protection of the moment limiter of the tower crane under the rated load state, etc.

2022-01-24

Fault Analysis and Solution of Common Problems of Bridge Crane

Bridge crane is the construction industry in China on the general configuration of the setting guarantee, in China's industrial system operation has a wide range of coverage, high degree of application, popularization and other characteristics, is the development of major industries in China's basic equipment, has been successfully covered to land, sea and air, civil, military and other corners; on the other hand, bridge crane is important for the safe and effective operation of China's construction engineering system

2022-01-24

National Aerial Work Machinery Leasing Conference Held in Wuxi

The National Aerial Work Machinery Leasing Conference hosted by the Machinery Management and Leasing Branch of China Construction Industry Association was held in Wuxi on March 2, 2017. Du Xuemin, general manager of Zhongsheng Baili, as vice president, served as the vice president to preach the relevant contents of the "China Aerial Work Platform Operation Test and Training System", and conducted in-depth discussions and exchanges with the guests present, and jointly looked forward to the development prospects of the industry. With the acceleration of my country's urbanization construction, China's aerial work machinery leasing industry is booming, and more and more aerial work platform manufacturers and leasing companies have joined this industry. However, compared with the European and American markets, China's awareness of aerial work platforms is far from enough, the development of the leasing market is not mature enough, and there is a lack of good industry order. These are the hot issues currently facing the industry. The theme of this National Aerial Work Machinery Leasing Conference is "Standardize the industry and develop steadily", which aims to create a platform for communication, mutual benefit and win-win for the industry, and maintain and promote the healthy and orderly development of the industry. At the meeting, about 300 elites from leasing companies, manufacturers and users in the industry witnessed the launch ceremony of the new website and training system of the leasing branch of China Construction Association, which indicates that the standardized operation training and certification of aerial work platform will provide further guarantee for the majority of practitioners in production.

2022-01-19

Yancheng Speeds up the Construction of "5 1" High-speed Railway Network and Promotes the Yantai-Xi Changyi Intercity Railway Project

On March 6, it was learned from Yancheng Railway Office that from January to February, the city completed an investment of 0.242 billion yuan in railway construction, of which the Yancheng section of Yanxu Railway completed an investment of 0.188 billion yuan, the Yancheng section of Yanlian Railway completed an investment of 0.054 billion yuan, and the Dongfeng yueda Kia Commercial Car Railway Loading Base was opened for operation, laying a solid foundation for the completion of the railway construction objectives and tasks throughout the year. At present, the city's high-speed rail builders are combining the study and implementation of the spirit of the city's "two sessions" with the in-depth implementation of the spirit of the provincial and municipal party congresses, and in accordance with the requirements of the implementation of the "Five Ones" strategic project, accelerate the construction of modern comprehensive transportation based on high-speed rail. "One network". Our city is speeding up the construction of the "5+1" high-speed railway network that runs from north to south, from east to west, and from inside to outside. The railways under construction include the Yanxu high-speed railway to Beijing and Xi'an, the Yanhuai Yangzhen railway to Nanjing (Yanning high-speed railway connecting line), the Yanlian railway to Qingdao, the Yantong high-speed railway to Shanghai, and the Yantai-Xixi high-Changyi high-speed railway to Hangzhou, and the Yancheng Integrated Passenger Transport Hub. During the 13th five-year Plan period, we will ensure the completion of more than 200 kilometers of high-speed passenger dedicated lines and more than 100 kilometers of passenger and freight lines, so as to speed up the entry into the era of high-speed rail. This year, we will make full use of the advantages of the main battlefield of railway construction in the whole province, speed up the completion of the main project of Yanlian railway, complete the pile foundation and beam erection project of Yanxu high-speed railway bridge, start the construction of Yantong high-speed railway, and accelerate the preliminary work of Yantai Xi Changyi intercity railway project. The construction unit of Yancheng section of Yanxu railway has completed a total investment of 3.378 billion yuan. The pile foundation, pile cap, pier body, beam making and beam erection of the bridge have reached 98.5, 74.9, 65.5, 17.6 and 6.3 of the design number respectively. The construction unit of Yancheng section of Yanlian railway has completed an investment of 0.054 billion yuan this year, with a total investment of 6.141 billion yuan. It has completed roadbed treatment and bridge pile foundation works, and is carrying out beam erection and track laying construction. The girder erection has been completed, and the track laying of the main line has been completed for a total of 119.72 kilometers. Dongfeng Yueda Kia Commercial Vehicle Railway Loading Base is a logistics and transportation base for commercial vehicles in northern Jiangsu built by the municipal government and the Shanghai Railway Administration. It was officially opened for operation on February 18. The first batch of 280 Dongfeng Yueda Kia vehicles were sent to Xi'an by railway., Yinchuan, Taiyuan and other directions. The opening and operation of the base plays an important role in promoting the establishment of railway freight transportation network in Northern Jiangsu Province. It not only serves local key enterprises, reduces enterprise costs, promotes local development, greatly improves the logistics level of Yancheng main urban area, but also is of great significance to improve the railway freight transportation capacity of our city and Xinchang railway. The Municipal Railway Office actively serves the city's railway engineering construction, and actively helps the construction unit to solve the problems of construction access road, beam yard and personnel life according to the construction progress requirements, so as to ensure the rapid entry and construction of the construction unit. At the same time, work closely with relevant municipal departments to open a "green channel" for administrative approval to help construction units quickly apply for municipal land use, river crossing, and road crossing construction permits, and cooperate with the Municipal Federation of Trade Unions and Subei Railway Company to carry out the city's key railway projects. The construction labor competition will organize leadership, publicity and launch, preliminary work, land acquisition and demolition progress, party style and clean government construction, road and land construction, and safety production, etc, vigorously promote the construction of high-speed rail. Previous: National aerial work machinery

2022-01-19

Precautions for Gantry Crane Installation in Outdoor

Gantry crane and bridge crane comparison can be seen, gantry crane installation is relatively more convenient. The relevant precautions must also be strictly observed when installing outdoors. So, crane manufacturers according to many years of experience, from the perspective of practical operation, talk about the gantry crane in the outdoor installation of matters needing attention, for the majority of new and old customers reference. 1. The tonnage of the gantry crane is different, and the requirements for the track and foundation required for installation are also different. So should try to match. 2. The span of the gantry crane is large, and the angle needs to be paid attention to during the installation process. The assembly process of each part needs to be on a horizontal plane. 3. The foundation shall be laid firmly, otherwise the gantry crane will tilt. The foundation must meet the specified requirements and be high for the overall configuration. 4. The track should be processed in strict accordance with the standard, otherwise the gantry crane will deform under heavy pressure, causing secondary friction and prone to accidents. 5. After the installation of the gantry crane is completed, the lifting test requires air operation, ground operation test and compression test for overload.

2022-01-19

Foshan Nanhai Zhaoxi Hardware Factory

Project introduction: our company has designed and manufactured 8 aluminum profile oxidation machines of type 1 1-12.5 and type 1 1-13.5. Foshan Nanhai Zhaoxi Hardware Factory is a professional hardware products manufacturer, located in the top three industrial towns in China-Shishan Town, Foshan City. Project Date: 8/2019

2022-01-18