Bolt connection device

A technology for connecting devices and bolts, which is applied in the direction of bolts, connecting components, screws, etc., can solve the problems of increasing labor intensity, increasing the number of assembly parts, reducing assembly safety and reliability, etc.

Inactive Publication Date: 2018-06-05
DATONG ELECTRIC LOCOMOTIVE OF NCR
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  • Abstract
  • Description
  • Claims
  • Application Information

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 g

Method used

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Embodiment Construction

[0014] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. Below in conjunction with accompanying drawing, the present invention is further described.

[0015] Such as Figure 1-Figure 4 As shown, the pin sleeve type bolt connection mechanism provided by the present invention uses two pin sleeves with tapered surfaces, which are respectively transition taper sleeve-4 and inner sleeve-5, and the connected parts of transition taper sleeve-4 during initial installation -1 is in contact with the connected part-2 of the inner sleeve-5 first, and the inner sleeve-5 is pulled axially by the axial tension generated during the tightening of the connecting bolt-6, and the inner sleeve-5 is moving towards the outer sleeve-3 Among them, when the interference is generated between the connected part-1 and the connected part-2,...

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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...

Claims

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Application Information

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IPC IPC(8): F16B39/02
CPCF16B39/023
Inventor 徐艳晖张志和马呈祥
Owner DATONG ELECTRIC LOCOMOTIVE OF NCR
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