Intelligent tensioning device for precast box girder

Abstract

The utility model relates to tensioning device technical field especially relates to a prefabricated box girder intelligence tensioning device, including gantry, the mobile assembly for adjusting the position of gantry is equipped at the bottom of gantry, the position adjusting assembly is equipped at the top of gantry, the movable end of position adjusting assembly is connected with hoisting assembly, hoisting assembly has two movable ends, the two movable ends of hoisting assembly are connected with same first jack, the both ends along the axial direction of first jack and the two movable ends of hoisting assembly are connected respectively. The prefabricated box girder intelligence tensioning device of the utility model adjusts the position of gantry through mobile assembly, then adjusts the position of first jack on horizontal plane through position adjusting assembly, finally adjusts the position of first jack in height direction through hoisting assembly, adjusts the levelness of jack simultaneously, and then realizes quick and accurate installation, improves construction efficiency and construction accuracy.

Claims

1. A precast box girder intelligent tensioning device, characterized in that, The system includes a gantry frame (1), the bottom of which is provided with a moving component for adjusting the position of the gantry frame (1), and the top of which is provided with a position adjustment component (3). The movable end of the position adjustment component (3) is connected to a hoisting component (4). The hoisting component (4) has two movable ends, and the two movable ends of the hoisting component (4) are connected to the same first jack (5). The two ends of the first jack (5) along its own axis are respectively connected to the two movable ends of the hoisting component (4).

2. The intelligent tensioning device for precast box girders according to claim 1, characterized in that, The position adjustment component (3) includes a lateral adjustment component and a longitudinal adjustment component. The lateral adjustment component is connected to the gantry frame (1), the movable end of the lateral adjustment component is connected to the longitudinal adjustment component, and the movable end of the longitudinal adjustment component is connected to the hoisting component (4).

3. The intelligent tensioning device for precast box girders according to claim 2, characterized in that, The lateral adjustment component includes a first guide rail (31), a rack (32), and a lateral sliding plate (33). The first guide rail (31) and the rack (32) are both arranged in the lateral direction. The lateral sliding plate (33) is slidably connected to the first guide rail (31). A first motor (341) is fixedly connected to the lateral sliding plate (33). A gear (34) is fixedly connected to the output end of the first motor (341). The gear (34) meshes with the rack (32).

4. The intelligent tensioning device for precast box girders according to claim 3, characterized in that, The longitudinal adjustment component includes a longitudinal adjustment plate (35), a second motor (351), a screw (353), a second guide rail (352), and a sliding block (354). The longitudinal adjustment plate (35) is fixedly connected to the transverse sliding plate (33). The second motor (351) and the second guide rail (352) are both fixedly connected to the longitudinal adjustment plate (35). The output end of the second motor (351) is coaxially fixed with the screw (353). The sliding block (354) is slidably connected to the second guide rail (352) and threadedly connected to the screw (353).

5. The intelligent tensioning device for precast box girders as described in claim 1, characterized in that, The hoisting assembly (4) includes a crane (41) and a lifting device (42). The crane (41) is fixedly connected to a sliding block (354). The movable end of the crane (41) is connected to the lifting device (42). The lifting device (42) has two lifting ropes, and the two lifting ropes on the lifting device (42) are connected to the first jack (5).

6. The intelligent tensioning device for precast box girders as described in claim 5, characterized in that, Two rotating drums (421) are rotatably connected to the lifting device (42). Each lifting rope is fixedly connected to the side wall of a rotating drum (421). One end of the rotating drum (421) extends out of the lifting device (42) and is connected to a ratchet (422). A pawl (423) is also rotatably connected to the lifting device (42). A torsion spring (424) is provided between the pawl (423) and the lifting device (42). The torsion spring (424) applies torque to the pawl (423) so that the pawl (423) abuts against the ratchet (422). A handwheel (425) is fixedly connected to the end of the rotating drum (421).

7. The intelligent tensioning device for precast box girders as described in claim 1, characterized in that, The moving assembly includes two moving plates (21), and each moving plate (21) has four moving wheels (22) rotatably connected to its bottom.

8. The intelligent tensioning device for precast box girders as described in claim 7, characterized in that, A second jack (23) is fixedly connected to the movable plate (21). The movable end of the second jack (23) extends from top to bottom through the movable plate (21) and is connected to a support plate (24). When the movable end of the second jack (23) extends out, the support plate (24) contacts the ground.

Images