The design, manufacture and inspection of this crane are in compliance with the latest national standards, and equivalently adopt some foreign standards such as FEM, DIN, and IEC. Compared with the original general QD type bridge crane products, its own weight is reduced by about 15-30%. The maximum wheel pressure is reduced by about 10~35%, which can reduce the requirements of the crane on the structure of the plant and save the manufacturing cost of the plant.
The core components of the transmission mechanism, the reducer, all use hard tooth surfaces, high-precision gear pairs, plus the application of steel reels, forged wheels and variable frequency speed regulation systems, making this type of crane an updated product of the traditional general-purpose bridge crane. It is suitable for machinery manufacturing, assembly, petrochemical, warehousing and logistics, power construction, papermaking, railway and other industries.
The main beam adopts the off-track box structure, and the end beam is connected with high-strength bolts, which is convenient for transportation.
The lifting trolley is an open compact winch structure.
The operating mechanism of large and small vehicles adopts European technology three-in-one drive form, hard-tooth surface reducer, compact structure, low noise and long service life.
The overall size of the whole machine is small, the weight is light, and the height of the plant can be reduced, which effectively reduces the cost of the plant.
The design cycle is short, the degree of generalization is high, and the utilization rate of parts is improved.
Compact structure, low headroom, small size, large working range, effectively improving production efficiency.
Full frequency conversion control, stable operation, no impact, slow heavy load, fast light load, energy-saving and consumption reduction.
Features:
Light weight: The design software developed by the company, combined with three-dimensional modeling and finite element analysis, adopts the most reasonable structure from the lifting mechanism, steel structure to the accessories, and the large-scale application of high-strength materials improves the load-bearing capacity. It reduces its own weight, which is lighter than traditional cranes and has lower wheel pressure.
Small space occupation: the limit distance from the hook to both sides is small, the working range is large, the height above the track surface is small, and the workshop space is effectively used.
Low operation and maintenance cost: Due to the small wheel pressure and small size, it can reduce the investment in the early stage of the plant, and at the same time, the lighting, heating and other facilities can also save a part of the cost. The product performance is reliable and durable, so that the later product is in use. The cost of the required accessories is reduced to a minimum. The optional high-quality, high-performance parts greatly reduce the workload of maintenance and repair, the total installed power is reduced, and the use cost can be saved.
High working performance: using frequency conversion technology, heavy load slow speed, light load fast, speed adjustment range 1:10, the crane runs smoothly, reducing the impact on the plant. Combined with anti-sway technology, high-precision positioning of lifting objects can be realized.
Easy to operate
Green manufacturing technology: adopting green design concept, wide-range application of high-strength materials, seamless blanking of main beams, automatic welding technology and laser cutting technology, realize energy saving and environmental protection in the production process and reduce environmental pollution.
Fast positioning
Trolley (winch-type)
Trolley operating mechanism: three-in-one compact structure of motor, reducer and brake, motor insulation class F, protection class IP55, load continuity rate 40%, with thermal protection, power distribution disk brake, reducer hard tooth surface, and After grinding or shaving, the gearbox does not need to change the oil during its service life.
Forged wheels, rim, and tread hardness HB330 ~ 380.
Frequency conversion speed regulation, heavy load slow speed, light load fast, speed range 1:10, smooth operation without impact.
The trolley limit switch adopts a cross travel limit switch, which reduces the running speed of the trolley to zero before the trolley buffer collides with the end stop of the trolley track.
The lifting mechanism adopts a three-point installation form. Both ends of the reel are directly supported on the end beams on both sides of the trolley frame. The pulley beams are connected by bolts to connect the end beams on both sides to form a longitudinal beam. The output shaft of the reducer is sleeved and connected to the extended winding shaft, and the lifting motor and the reducer adopt an elastic body coupling.
1. Welding reel: The reel is made of a short-shaft steel plate, with bearing seats at both ends, and a sleeve shaft extending from one side. The structure is simple, and the adjustment and installation are convenient.
2. High-strength galvanized steel wire rope: the nominal tensile strength is 1870kN/mm2, the steel wire rope does not need to be coated with anti-rust oil, and it is maintenance-free
3. Hoisting motor: the standard configuration is a frequency conversion motor, optimized air-cooled, insulation class F, protection class IP55, and the power-on duration rate is 40%.
4. Lifting reducer: tooth surface Trolley burizing and hardening treatment, hardness HRC60, and after grinding or shaving, light weight, good sealing and no oil leakage.
5. Lifting brake: Normally closed brake with automatic wear compensation, which can be manually opened and released in an emergency state through a separate manual operation. If necessary, double brakes can be set.
6. Hook group: The hook group is composed of hooks and pulleys. The hook material is DG34CrMo. The pulley material is Q235 hot-rolled, using anti-friction roller bearings, the hook can rotate 360°, and the safety buckle with spring compression can prevent slippage. All pulleys use maintenance-free bearings. The pulley design can effectively prevent the wire rope and the pulley shell from abrasion. The overall structure is exquisite in volume and beautiful in appearance.
7. Lifting limit: cam rotary type, 4-level adjustable, upper and lower limit, automatic reset, safe and reliable. The rising pre-limit reduces the impact, and the limit prevents the hook from rushing to the top.
8. Trolley electric control box: protection grade|P55, aviation plug, quick installation.
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