easy to break suddenly the whole root

With multiple or multi-strand twisted flexible thin wire rope, wire rope is twisted into shares by the multi-layer, then the cord as the center, by a number of strands twisted into a spiral around the rope. In material handling machinery for improved traction, tensioning and load-bearing purposes. Rope, high strength, light weight, smooth, easy to break suddenly the whole root, reliable work.
Structure
⑴ wire
Play a role in load bearing rope, the performance is mainly determined by the wire. Carbon steel or alloy steel wire is cold-drawn or cold-formed by a circular (or shaped) wire, high rider pallet truck and toughness, and according to different environmental conditions for surface treatment of steel.
⑵ rope core
The main function of the core rope to increase the flexibility and toughness of steel wire rope, wire lubrication, reduce hand pallet truck, high rope life. Common types include organic fiber cord (such as hemp, cotton), synthetic fibers, asbestos core (high temperatures) or a soft metal and other materials.
Hierarchical classification
Brief introduction
Rope twist around at the level can be divided into single-winding rope, double and triple roping roping.
Single-roping
By a number of thin wire around a metal core twist from the system, flexibility is poor, easy to wear when bent repeatedly broken, mainly for not exercising taut cable.
Dual roping
Shares by the twisted steel wire rope core and then surrounded by a twisted rope shares. Common core of hemp rope core, high-temperature operation is appropriate asbestos-core or soft steel wire twisted metal core. Dipping the cord in front rope lubricant, wire each other to reduce the damage caused by friction. Dual flexible rope around better, making simple and most widely used.

These are caused by the crane hydraulic system contamination

 Truck Crane hydraulic system contamination
At present, some advanced industrial countries, the company survey showed that 70% of hydraulic mechanical failure from the hydraulic system, hydraulic system so ugly that at least 75% is due to dirty hydraulic oil caused. Domestic crane hydraulic system contamination due to failures and accidents also extremely common. At present, some advanced industrial countries, the company survey showed that 70% of hydraulic mechanical failure from the electric pallet trucks system, hydraulic system so ugly that at least 75% is due to dirty hydraulic oil caused. Domestic crane hand pallet truck system contamination due to failures and accidents also extremely common. Such as hydraulic truck crane hoisting mechanism of the variable motor oil due to blockage of the particulate matter control ports and hinder variables, and even failure; larger than hydraulic truck crane slewing mechanism because of the oil particles clogging unidirectional rotary damping valve can not be executed instruction; pumps, cylinders, motors, locks, valves, early failure due to wear particles. These are caused by the crane hydraulic system contamination, and not unjustly quality hydraulic and hydraulic components and repair underwater.
Hydraulic crane hydraulic system is a core component. Crane operation outrigger cylinder and cylinder luffing all want to support the whole weight and load. Slewing jib crane telescopic and institutions such as motivation to work also depends on the hydraulic system. Oil pollution levels and cleanliness of the hydraulic system, the use of a direct impact on the reliability and service life of the crane.

Crane rental handling large crane lifting Jiangmen Jiangmen crane rental

Hoisting crane mall is an important effort to promote
Posted by: admin Read 320 times Published: October 8, 2012 Print This Page
Crane rental handling large crane lifting Jiangmen Jiangmen crane rental
Global crane hoisting hundred summit and China held in Beijing. China Construction Machinery Industry Association, Qi Chun at the meeting showed that China as the world's cranes career major malls, shopping centers toward the future, has become the focus of global enterprises to pay attention, to promote Chinese crane electric pallet jack career is an important effort undertaken mall.
Qi Chun showed that in 2012 China's macro economy continued to decline, construction machinery along with career growth also presents a rare slowdown. Shopping malls increased demand weakness, occupational decompose further increase competition has become even more intense, as construction machinery industry is an important part of the crane occupation facing important issues. China as the world's cranes career major malls, shopping centers toward the future, has become the focus of global corporate attention.
Qi Chun showed that although the internal environment Qianan, but in 2012 the mall overseas to pallet stacker beyond nature has gained increased to hoist occupation, for example, from 2001 to 2010 this decade, employment income increased by 47.09 times, exports increased 130.05 times. Profession to the world is not only consistent, it is a common career move. Although there are still many needs of the current deal, but the results obtained are also well known, the subsequent occupation of foreign enterprises should further learning, and constantly promoted concept of operations, operational quality, skills development can, try to do better the occupation, Occupation is to promote Chinese crane hoisting mall undertaken important effort.

Domestic construction crane on the market

KBK flexible light combined system including KBK-D monorail crane, KBK-LD single beam, KBK-LS double girder, KBK-LSS telescopic beam, KBK-LM stacker and other various types of hand pallet truck equipment, lifting weight of 0.125t -1t adapt to a very wide range, especially for modern production conveyor line, which features are summarized below:
1, good reliability, high stability KBK light crane components of the system are all standard modules can guarantee high-volume, high-quality production, which system is very reliable; system module is the mainstay of three sizes of rolled profiles, strength, stiffness, light weight, to ensure stability of the system.
2, KBK system adaptable plant each station according to the needs, design and installation flexibility. Transported from the point to multi-point high accuracy, and more automated conveyor line beat, can be freely combined together. The plant can be used for new designs can also be used to modify or extend the old system.
3, easy to install, cost-effective KBK system installation is very convenient. KBK profiles counter balance stackers various standard modules can be used only with bolts, saving factory space and area, thereby reducing energy consumption, improve enterprise efficiency. System can be operated manually or can achieve automatic and semi-automatic operation.And total sales of Shijiazhuang Coal Mining Machinery crane 2370, accounting for the types of products 70.04% of total sales, Xu grew 62.4% over year.
Domestic construction crane on the market, cranes (including all terrain crane) is still the industry's leading products. January to September 2010, truck crane sales 27,572 units, up 35.6%; total exports of 879 units, an increase of 62.1%. Which ,3-June for the automotive crane sales season, the average monthly sales of 3,500 units or more, the peak appeared in March, sales reached 4,429 units; January largest growth rate, an increase of 158.3%; while sales in February and September appeared fell. From the product structure, small and medium-tonnage truck crane sales increased. 1344 crawler crane sales units, up 61.93 percent, close to the 2008 record high. Sales of products to 50t, 70t, 80t, 100t, 150t and 250t crawler crane mainly small and medium level. Truck crane half sales 4796 units, up 38.53 percent.

To ensure the accuracy of the roof moves

Retractable roof comprises a total of nine base plate is divided into two parts: one is 4 , and the other part of the 5 . On either side of each plate are fixed with angled steel . There are 10 frames across 77 meters of the stadium . Each steel wheels supported by a set of ports can be installed in the center court along both sides of the Shop Lifter move . Ready to close the retractable roof , the northernmost part of the stadium to keep the folded state , parked in another part of the southern end . To ensure the accuracy of the roof moves , you need to install a high-precision electronic actuators, servo motor and rocker synthesis system . This system will separate the steel , while steel between the upper and the steel parts of substantially begin until the two parts of the top center of the pitch joints combined stacked flat . Steel is installed on the bottom of the hinge a number of similar components. Schaeffler FAG spherical roller bearings assembled in these hinge . These bearings due to friction is small, and can be carried out right kind of compensation is selected. These bearings are grease lubricated through high-performance , during use, requires minimal maintenance

reduce friction, high rope life

⑴ wire
Play a role in load electric order picker rope, the performance is mainly determined by the wire. Carbon steel or alloy steel wire is cold-drawn or cold-formed by a circular (or shaped) wire, high strength and toughness, and according to different environmental conditions for surface treatment of steel.
⑵ rope core
The main function of the core rope to increase the flexibility and toughness of steel wire rope, wire lubrication, reduce friction, high rope life. Common types include organic fiber cord (such as hemp, cotton), forklift jacks fibers, asbestos core (high temperatures) or a soft metal and other materials.
Hierarchical classification
Brief introduction
Rope twist around at the level can be divided into single-winding rope, double and triple roping roping.
Single-roping
By a number of thin wire around a metal core twist from the system, flexibility is poor, easy to wear when bent repeatedly broken, mainly for not exercising taut cable.
Dual roping
Shares by the twisted steel wire rope core and then surrounded by a twisted rope shares. Common core of hemp rope core, high-temperature operation is appropriate asbestos-core or soft steel wire twisted metal core. Dipping the cord in front rope lubricant, wire each other to reduce the damage caused by friction. Dual flexible rope around better, making simple and most widely used.

Wheeled crane maintenance

This paper focuses on wheeled crane maintenance, cleaning and lubrication is divided into two parts
 Using clean, wipe each other method to clear up various traces of oil and dirt on the machine, remove the dust on the machine and its components. Cleaning of the hydraulic system is particularly important, foreign matter is the main hydraulic system failure original Gang. Ensure that the gas in the pneumatic system clean and dry to prevent pipe corrosion, improve system reliability.
Wheeled cranes on a variety of cleaning devices, such as air filters, fuel filters, oil filters and hydraulic oil filters should be cleaned and checked regularly, cleaning or replacement. counter balance stackers fuel, lubricating oil, cooling water. Hydraulic system hydraulic oil, torque converter work in oil, compressed air cylinders pneumatic system, the liquid in the battery, etc., in the course of a regular basis, or replenish.
 To improve mechanical efficiency, reduce component wear, friction taken for each lubrication antifriction. For taking forced Hydraulic fixed lift table and splash lubricated parts, lubrication focus of the work that is complementary to clean. Such as gearbox or reducer, engine lubrication, it is necessary to ensure adequate cleaning and lubricating oil; bearing lubrication work is usually caused by lubrication equipment in a timely manner complementary to each lubrication point; For open gear, ring gear, rope, clear round, arm and leg and other friction surface with open sails pieces require direct Xu
Grease lubrication.