Bolt tightening machine for connecting slewing bearing and hub

A technology of slewing bearings and tightening machines, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve the problems of low quality of bolt tightening, high error, waste of labor and material resources, etc., to improve work efficiency and high intelligence level , the effect of improving the quality
CN101890635AActive Publication Date: 2010-11-24SANY ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SANY ELECTRIC CO LTD
Publication Date
2010-11-24

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Abstract

The invention discloses a bolt tightening machine for connecting a slewing bearing and a hub. The bolt tightening machine comprises a tightening shaft device (1) and a central rotating shaft (21), wherein the central rotating shaft (21) is connected with a positioning bracket rotating with the central rotating shaft (21); the positioning bracket is provided with a circumferential rotation drive device (3); the circumferential rotation drive device (3) is connected with a tightening shaft bracket (4) rotating with the circumferential rotation drive device (3); and the tightening shaft device (1) is arranged on the tightening shaft bracket (4). The bolt tightening machine also comprises a control device connected with the circumferential rotation drive device (3) and the tightening shaft device (1), so that the control device controls the tightening shaft device (1) to move to the position of each bolt needing tightening and completes the tightening action of the bolt. The bolt tightening machine can improve the efficiency of tightening the bolt on one hand, and can improve the quality of tightening the bolt on the other hand.
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Description

technical field

[0001] The invention relates to the technical field of bolt tightening, in particular to a bolt tightening machine for connecting a slewing support and a wheel hub. Background technique

[0002] Bolt connection is a widely used detachable fixed connection, which has the advantages of simple structure, reliable connection, convenient assembly and disassembly, etc. In various large and heavy electromechanical equipment, bolt connection has been widely used.

[0003] In the horizontal axis wind turbine, the essential part is the pitch slewing bearing used to connect the blades and the hub, and the connections between the pitch slewing bearing and the blades and the hub are bolted, and the bolts used for the connection There are a large number of screws, so it needs to be tightened in multiple times according to a specific tightening sequence. In addition, due to the large load and complex load of the pitch slewing bearing, the quality of the bolt connection is ...

Claims

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