A valve connecting bolt dismantling and tightening equipment

Abstract

The invention discloses a valve connecting bolt dismantling and tightening device, comprising a worktable, a column, a movable connecting arm, a wrench connecting device, a rotating device and a pressing device; a column and a rotating device are installed on the working platform, and the movable connecting arm and the column It is connected with a dead wrench connecting device; a pressing device is installed on the rotating device, a valve is arranged on the rotating device, and the rotating device enables the valve to rotate along its axis. The movable connecting arm includes a casing, a lead screw, a slide block, a hinge ear and a first hydraulic cylinder; both ends of the lead screw are rotatably connected with the upright column; the slide block is threadedly connected with the lead screw, and the side of the slide block far from the lead screw is fixed with the hinge ear connection; a first hydraulic cylinder is installed in the casing, and the piston rod of the first hydraulic cylinder is connected with a dead wrench connecting device. The present invention can automatically tighten and remove the bolts in the case that the position of the connecting bolts of many valves is narrow and the space is limited, and can be suitable for valves of different specifications.

Description

technical field [0001] The invention relates to the technical field of bolting equipment, in particular to a large or heavy valve connecting bolt disassembling and tightening equipment. Background technique [0002] At present, hydraulic wrenches are mainly used for the disassembly and tightening of connecting bolts of large or heavy valves. However, due to the limitation of its own structure, hydraulic wrenches cannot be used for many valve connecting bolts with narrow positions and limited space. In this case, the valve connecting bolts are generally disassembled and tightened by means of a more traditional manual beating method or by using a bolt-screwing mechanism. However, relying on manual tapping, disassembly and tightening results in low production efficiency, long manual operation time, high labor intensity, and safety risks at any time. There is also a problem of uneven force in the way of manual beating, which is easy to cause uneven force on the connecting bolts...

AI Technical Summary

Problems solved by technology

However, relying on manual knocking, disassembly and tightening results in low production efficiency, long manual operation time for operators, high labor intensity, and safety risks at any time. There is also the problem of uneven force in the way of manual beating, which can easily cause uneven force on the connecting bolts of the valve, making the valve connection not tight or there are gaps

At the same time, the general bolt-tightening mechanism often has errors in the machining process due to the center distance of the bolt holes, and the specifications of different valves are inconsistent. The general bolt-tightening machine cannot adapt to valves of different specifications, resulting in low work efficiency.

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