A cantilever flange connection device

Abstract

The invention discloses a cantilever flange connection device, which comprises a cantilever flange joint and a fixed flange joint. The cantilever flange joint is provided with an alignment piece capable of ensuring that the central axes of the cantilever flange joint and the fixed flange joint coincide. The cantilever flange joint is detachably connected with the fixed flange joint through a locking mechanism. When the device of the present invention is in use, the center axis of the cantilever flange joint and the fixed flange joint can be coincident through the alignment piece, ensuring accurate positioning between the two, and ensuring the coaxiality of the two; through the locking mechanism The fixed connection of the cantilever flange joint and the fixed flange joint, so as to accurately define the relative position between the cantilever part and the fixed part. The invention provides an aligning member and a locking mechanism, simultaneously restricts all six degrees of freedom between the cantilever and the fixed member, up, down, left, right, front, back, and front, and can effectively solve the problem of loosening and offset between the cantilever and the fixed member.

Description

technical field [0001] The invention relates to a cantilever flange connection device. Background technique [0002] In the cantilever connection structure, the traditional flange connection structure can be used to achieve accurate positioning and reliable connection, but it is inconvenient to operate and cannot meet the needs of frequent disassembly and assembly. Its structural form specifically has the following defects: [0003] (1) The operation process is cumbersome: when connecting traditional cantilever flanges, it is necessary to align and fit the two flange plates first, then install the fasteners while maintaining the alignment of the two flange plates, and finally use Tighten all fasteners one by one with two wrenches; when disassembling a traditional cantilever flange, it is necessary to use two wrenches to unscrew all fasteners one by one, then remove the flange structure, and finally remove the fasteners ; The process of assembly and disassembly is too cumbe...

AI Technical Summary

Problems solved by technology

[0003] (1) The operation process is cumbersome: when connecting traditional cantilever flanges, it is necessary to align and fit the two flange plates first, then install the fasteners while maintaining the alignment of the two flange plates, and finally use Tighten all fasteners one by one with two wrenches; when disassembling a traditional cantilever flange, it is necessary to use two wrenches to unscrew all fasteners one by one, then remove the flange structure, and finally remove the fasteners ;The process of assembly and disassembly is too cumbersome and usually requires two people to cooperate to complete

[0004] (2) Too many fasteners: In the traditional cantilever flange connection structure, it is necessary to use many standard fasteners of specified specifications to connect and fasten, which is inconvenient to manage

[0005] (3) The required operating space is large: when tightening or disassembling the fasteners, two wrenches need to be used to clamp the fasteners on both sides of the main flange at the same time, and then rotate one of the wrenches; There is enough operating space outside the flange, but when there are other structures (such as insulation structures) outside the flange, the available operating space is very limited

[0006] (4) Poor working conditions: Due to the need for frequent disassembly and assembly, the fit between the fastener and the connecting hole can only be designed as a clearance fit. Therefore, in the traditional cantilever flange connection structure, only the flange can be used. The static friction force between the surfaces is used to overcome the self-weight of the connected parts; in the case of shock, vibration, variable load and large temperature changes, the static friction force is not stable and may disappear instantly, affecting the connection between the flange surfaces. Tightness of connection

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