Movable mounting and dismounting device for mounting and dismounting bottom bolts of large equipment

Abstract

The invention relates to the technical field of mounting and dismounting of mechanical equipment and discloses a movable mounting and dismounting device for mounting and dismounting bottom bolts of large equipment. The movable mounting and dismounting device comprises a moving frame, a jacking mechanism, a rack, a motor, a torque control display mechanism, a speed reducer, a sleeve, a lithium battery power supply and control switches; the torque control display mechanism is connected with the motor and controls the motor to output the torque; the jacking mechanism is fixedly arranged on a bottom plate of the moving frame; the rack is located above a top plate of the moving frame; the jacking mechanism is connected with the rack, supports the rack and controls the rack to rise or fall; themotor is arranged on a bottom plate of the rack; an output shaft of the motor is connected with the speed reducer; an output shaft of the speed reducer is connected with the sleeve; the motor drives the sleeve to rotate through the speed reducer; the lithium battery power supply supplies power to the motor and the jacking mechanism; and the control switches include a forward / reverse rotation switch, a rising / falling switch and a rotation switch. The device is moved under the large equipment conveniently by a worker, is safe and effort-saving to operate and is high in efficiency, a power inputline is not required to be dragged, passing of other equipment is not affected, and accurate control on the torque is realized.

Description

technical field [0001] The invention relates to the technical field of disassembly and assembly of mechanical equipment, in particular to a mobile disassembly and assembly device used for disassembly and assembly of bolts at the bottom of large-scale equipment. Background technique [0002] The bottom of some large-scale equipment is often designed with many bolt links, such as the bolts on the bottom ring of the water turbine used to fix multiple sets of sealing combinations, some as many as 100 or so; There are as many as 30 bolts per car. These bolted connections often need to be installed, tightened or disassembled during equipment assembly and maintenance, and the tightening torque of the bolts must comply with relevant industry standards. [0003] Faced with the bolts at the bottom of this large-scale equipment, at present, the main method in China is to manually drill under the equipment and hold wrenches of various driving modes upward for disassembly and assembly o...

AI Technical Summary

Problems solved by technology

Gas-driven wrench has many advantages such as high power, low price, and no pollution. However, the weakness of this type of wrench is also obvious. Large torque, but the hydraulic drive equipment needs to be accompanied by a set of hydraulic devices, the structure is complex, the size is huge, and it is not easy to maintain; the electric drive wrench has many advantages such as high cost performance, large power-to-volume ratio, good control performance, and easy maintenance. It is a high-precision, The development trend of intelligent wrench

Whether it is a gas-driven wrench, a hydraulic-driven wrench or an external power-driven wrench, it is necessary to connect a long power input line (high-pressure air pipe, oil pipe, cable, etc.), and it is inconvenient to constantly drag the heavy power input line during operation, especially in It is even more inconvenient to work in workshops where motor vehicles such as forklifts often pass through; at the same time, no matter what kind of handle is used, the operation method of manually drilling under the equipment and holding a wrench upward to disassemble and assemble bolts has high labor intensity and low disassembly efficiency. , many safety hazards and poor fastening quality have seriously affected the market competitiveness of related companies; in addition, since high-torque electric wrenches are often equipped with reaction arms, when using high-torque electric wrenches to disassemble bolts, the reaction arm needs to be Focus, due to the complex arrangement of bolts at the bottom of large equipment, the shape and size of the reaction arm are difficult to unify, and often need to be replaced, which greatly reduces work efficiency

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