Bucket tooth and tooth base connecting mechanism of engineering machine

A technology of construction machinery and connecting mechanism, which is applied in the direction of earth mover/shovel, construction, etc. It can solve the problems of tooth pin breaking, bucket tooth falling off, wear and so on, so as to achieve not easy falling off, less wear and tear, and reduce the cost of use Effect

Inactive Publication Date: 2014-11-26
刘育超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of serious wear of the existing construction machinery bucket teeth and tooth seat connection mechanism, tooth pin breakage, prolapse, and ...

Method used

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  • Bucket tooth and tooth base connecting mechanism of engineering machine
  • Bucket tooth and tooth base connecting mechanism of engineering machine
  • Bucket tooth and tooth base connecting mechanism of engineering machine

Examples

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Embodiment Construction

[0022] 1. Make the front and rear force-bearing surfaces (1) of the plug and socket vertical and parallel to the tooth symmetry axis (2), so that the reaction force will not be inclined downwards, but a slight inclination within 5 degrees is also allowed (3). In this way, The plug can be tightly driven into the socket without loosening at all, and the force bearing surface (1) is in good contact with uniform force, so the wear is small and the bucket teeth will not slide down.

[0023] 2. Divide the front and rear stress surfaces (1) of the plug and socket into two stages ( figure 1 , figure 2 , image 3 ,) or multilevel ( Figure 4 ) The stepped force-bearing surface makes the plug and socket bigger and smaller, so that the bucket teeth can be tapered.

[0024] 3. After slight wear and tear, when the bucket tooth rotates under the action of excavation force, in order to prevent the slope (4) of the plug and socket in the two-stage front and rear force-bearing surface (1) ...

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Abstract

The invention discloses a bucket tooth and tooth base connecting mechanism of an engineering machine, which has the advantages of low abrasion and difficult dropping of a bucket tooth and a tooth pin. Front and back stress surfaces of a plug and a socket are vertical, are parallel to the symmetry axis of the bucket tooth, and are divided into two-stage or multi-stage step stress surfaces; gaps are reversed between inclined surfaces of the plug and the socket in the two-stage front and back stress surfaces, between planes of the plug and the socket of the multi-stage front and back stress surfaces and between the two ends of the bottom surface of the plug; the bottom surfaces of the plug and the socket are arched; the arc of the bottom surface of the plug is contacted with the arc of the bottom surface of the socket for limiting a gap; the bucket tooth is strung on the tooth base by a screw, and one end is locked by a screw cap; and a screw thread is not beyond the outer edge of the screw cap.

Description

technical field [0001] The invention relates to a construction machinery bucket tooth, in particular to a connection mechanism for connecting the construction machinery bucket tooth to a tooth seat. Background technique [0002] At present, the bucket teeth and tooth seats of construction machinery such as loaders are manufactured in one piece. When the bucket teeth are worn or damaged, the tooth seats must be replaced at the same time, resulting in waste. The gear seat of construction machinery such as excavators is welded on the bucket, and the bucket teeth are installed on the tooth seat. The pins string the bucket teeth on the tooth holders. The plugs and sockets have pyramids and spiral cones. The tooth pins have flat pins and round pins. The most commonly used ones are round pins. There are several problems in their structure: [0003] 1. Because the front and rear force-bearing surfaces of the plug and socket are seriously inclined, under the action of tens of tons o...

Claims

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Application Information

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IPC IPC(8): E02F9/28
Inventor 刘育超
Owner 刘育超
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