Auxiliary hoisting device for bridge construction

Abstract

The invention provides an auxiliary hoisting device for bridge construction. The device comprises a connecting frame and a hoisting frame; the interior of a base is of a hollow structure, and a planebearing is arranged inside the base; the bottom of a main frame body is connected into the base, a winch is fixedly arranged on the outer side of the main frame body, and the winch is connected with an external control circuit; a lead screw is rotationally connected to the top of the main frame body, and one end of the lead screw is connected with a transmission belt; and an adjusting motor is arranged at the top of the main frame body, and the adjusting motor is connected with the external control circuit. According to the device, according to the requirements of placing angles of a hoisted object, a transmission motor drives a worm inside the connecting frame to rotate, and the worm drives a worm wheel to rotate, so that the worm wheel drives the hoisting frame to rotate, the hoisting frame drives the hoisted object to rotate, and then the requirements of different placing angles of the hoisted object are well met; and after the hoisting frame completes rotating adjusting, through the self-locking characteristic of the worm and the worm wheel, the hoisting frame is fixed, and the stability of the hoisting frame in use is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and more specifically relates to an auxiliary hoisting device for bridge construction. Background technique [0002] A bridge refers to a building built for roads to cross natural or artificial obstacles. It is erected on rivers, lakes and seas to enable vehicles and pedestrians to pass smoothly. Bridges generally consist of superstructures, substructures and subsidiary structures. The superstructure mainly Refers to the bridge span structure and support system; the substructure includes abutments, piers and foundations; the auxiliary structures refer to the bridge head buttress, conical slope protection, revetment, diversion works, etc.; in the construction process of bridges, hoisting is usually used Auxiliary devices to improve the construction progress of the bridge. [0003] The auxiliary hoisting device for bridge construction can refer to patent No. CN108862058B, which mainly ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides an auxiliary hoisting device for bridge construction, to solve the problem that the existing auxiliary hoisting device for bridge construction cannot effectively respond to the requirements of the placement angle of the hoisted items when using the existing similar auxiliary hoisting device for bridge construction. To adjust the rotation, it is usually necessary to manually approach the hanging item to adjust the angle manually. The risk factor is poor, and the hanging item is prone to fall off, which will injure the construction personnel and increase the construction safety risk.

Images