Bolt connection device

Abstract

The invention discloses a bolt connection device. According to the device, based on an existing bolt connection structure, two layers of conical pin sleeves are added. The conical pin sleeves not onlycan withstand the shear force, but also can increase resistance to loosening in the axial direction. During bolt connection, the pin sleeve structure is adopted and is capable of transmitting rotational torque as compared to a common bolt connection structure. Bolts are protected against the shear force. The axial resistance to loosening of the bolt connection is improved, so that the axial connection of connected parts is reliable. By the adoption of the bolt connection device, the cost is low, and the overall maintenance-free purpose is realized. A shear pin, a shear key and a terminal facetooth structure are high in processing cost, it is difficult to disassemble and assemble a shear pin structure, and the maintenance and repair cost is high. The novel bolt connection mechanism can realize the overall maintenance-free purpose.

Description

technical field [0001] The invention discloses a bolt connection device, which is suitable for an assembly structure requiring high-reliability bolt connection, and is especially suitable for a connection structure with reliable axial connection and transmission of rotational torque. The bolt connection device adopts a pin-sleeve connection structure. Background technique [0002] At present, various new technologies and new ideas of fixed assembly of components are emerging, but bolt connection is still a common connection method in various industries. As an assembly method, bolt connection device is directly related to the operation safety of mechanical systems. The existing bolt connection devices almost generally adopt the connection device of bolt + nut, bolt + threaded hole, and some assembly structure bolts must bear shear force or rotational torque, so it is necessary to design the shear pin / shear key / face tooth when designing. structure to withstand the shear force...

AI Technical Summary

Problems solved by technology

The existing bolt connection devices almost generally adopt the connection device of bolt + nut, bolt + threaded hole, and some assembly structure bolts must bear shear force or rotational torque, so it is necessary to design the shear pin / shear key / face tooth when designing. structure to withstand the shear force, or by increasing the bolt diameter / bolt grade to withstand greater shear force, for structures that require high-reliability bolt connections, the reliability of the connection must be improved by increasing the number of bolts, resulting in The number of accessories increases, the structure is complex, and labor intensity is increased. Excessive bolt connections also reduce the safety and reliability of assembly to a certain extent.

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