locking pin

A technology of locking pins and pin bodies, which is applied to earth movers/excavators, construction, etc., can solve problems such as difficult assembly, short service life, and complex structure, and achieve easy assembly, reduced aging speed, and simple cooperation Effect
CN104358287BActive Publication Date: 2017-04-05GUANGXI LIUGONG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI LIUGONG MASCH CO LTD
Publication Date
2017-04-05

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Abstract

The invention discloses a locking pin, and relates to the technical field of mechanical connecting components. The locking pin comprises a pin body, wherein the pin body is a straight rod, a groove is formed in the side of the pin body, a cover plate used for sealing the notch of the groove is mounted on the pin body, a movable tenon and an elastomer are clamped and arranged in a cavity which is formed by surrounding the cover plate and the groove, the movable tenon is provided with a tenon head which extends out of the pin body from the groove wall of the groove and limiting parts which are placed in the groove, one ends which are connected with the tenon head of the limiting parts are butted against to the groove wall of the groove, the free ends of the limiting parts are in butted connection to the elastomer, and the limiting parts and the elastomer are sealed in the cavity. Compared with the prior art, the locking pin disclosed by the invention has the advantages that the locking pin is more suitable for the severe environment, the service life is long, the structure is simple, the processing and the assembling are easy, the component replacement is convenient, and the usage cost is low.
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Description

technical field

[0001] The invention relates to the technical field of mechanical connectors, in particular to a pin for locking and fixing the tips of bucket teeth and the like to the joints of excavating equipment in the construction machinery industry, mining machinery and other fields. Background technique

[0002] Excavators, loaders, and mining machines in the field of construction machinery and mining machinery excavate or reload with buckets, and the buckets play the role of cutting and loading materials. In order to reduce the insertion resistance and increase the cutting capacity of the bucket, it is necessary to install a bucket tooth assembly at the front of the bucket. Keep bucket working ends sharp while reducing maintenance usage costs by replacing worn tooth assemblies.

[0003] The bucket tooth assembly is usually designed into several parts, such as bucket tooth, tooth holder and locking piece. The front end of the tooth holder has a protruding part, which...

Claims

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