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Advanced walking type continuous pushing action, fast pushing speed, stable and reliable moving action.
Ultra high pressure hydraulic technology, with small size and light weight, convenient for field installation and disassembly.
Using frequency conversion synchronous control mode, the speed is accurately adjustable, and has the characteristics of displacement and force double closed-loop synchronous control.
Through perfect hydraulic control and point arrangement, the vertical supporting force of each pier top can be adjusted and balanced automatically, making the pushing more safe and reliable.
The whole equipment can adjust the attitude of the whole bridge in space.
Single device can realize independent movement in X, y and Z directions without mutual interference.
Walking type synchronous pushing hydraulic equipment is a kind of pushing equipment specially used for composite structure bridge, which is suitable for the use of steel box girder, truss girder and other different structure bridge types. Because of the high comprehensive performance of composite structure bridge, it has been widely used in bridge construction in China in recent years. However, the steel structure of composite structure bridge is mostly thin-walled structure, and its local stiffness is much smaller than that of concrete box girder and closed steel box girder. The traditional pulling multi-point continuous pushing equipment can not meet the pushing construction of this kind of bridge.
Through years of field construction experience, KIET has developed a new type of equipment, walking type synchronous pushing hydraulic equipment, which is suitable for the pushing of composite structure bridges. The walking type synchronous pushing hydraulic equipment is mainly composed of hydraulic oil circuit, electrical control, mechanical steel structure support, anti-wear and sliding and other parts, which effectively integrates the machine, electricity and hydraulic into one; in the construction process, it can realize multiple reciprocating lifting, pushing, deviation correction and other actions.
| Model | Capacity(T) | Stroke(mm) | Working Pressure(Mpa) | Cylinder Area(cm2) | |
| KET-BL-250 | Vertical(Z) | 250 | 200 | 70 | 363 |
| Horizontal(X) | 50 | 150 | 70 | 78.5 | |
| Longitudinal(Y) | 50 | 500 | 70 | 78.5 | |
| KET-BL-400 | Vertical(Z) | 400 | 200 | 70 | 572.3 |
| Horizontal(X) | 60 | 150 | 70 | 95 | |
| Longitudinal(Y) | 60 | 400 | 70 | 95 | |
| KET-BL-600 | Vertical(Z) | 600 | 200 | 70 | 855 |
| Horizontal(X) | 100 | 150 | 70 | 133 | |
| Longitudinal(Y) | 100 | 400 | 70 | 133 | |
| KET-BL-1000 | Vertical(Z) | 1000 | 200 | 70 | 1250 |
| Horizontal(X) | 200 | ±60 | 70 | 283 | |
| Longitudinal(Y) | 200 | ±60 | 70 | 283 | |
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| Synchronous lifting of steel box girder across highway | Synchronous lifting of steel box girder across highway | Fast disassembly and assembly of old and new bridges |
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| Synchronous lifting of steel box girder ramp | Synchronous lifting of roof of steel box girder across highway | Synchronous lifting of steel box girder across river |
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