Quick change structure, workpiece assembly and loader

Abstract

The invention provides a quick change structure, a workpiece assembly and a loader, and relates to the field of engineering mechanical equipment. The quick-change structure is suitable for connecting a workpiece with a mounting surface to the vehicle arm, the quick-change structure comprises a main body, a clamping piece and an adjusting mechanism, and the main body is used for being connected with the vehicle arm. The clamping piece is used for being fixed to the installation face of a work piece, the clamping piece can form a limiting groove with a lateral opening in the installation face, and after the first edge of the main body is clamped into the limiting groove, the first edge of the main body can be fixed. The adjusting mechanism is used for being detachably connected with the main body so as to fix the second edge of the main body and enable the first edge to be embedded in the limiting groove. The structure is compact, operation is easy, in the actual using process, a work piece and the machine arm are stably fixed together through the quick-changing structure, the conditions of separation and shaking are avoided, and the service life of parts such as a pin shaft used for connecting the main body and the machine arm is prolonged.

Description

technical field [0001] The present application relates to the field of construction machinery and equipment, and in particular, to a quick-change structure, a work piece assembly and a loader. Background technique [0002] Loaders can be used for a variety of purposes by installing buckets, forks or other supporting implements. In order to facilitate the replacement of different implements, a quick-change device is usually required. The quick-change devices disclosed at present mostly use quick-change oil cylinders (two-way oil cylinders) or quick-change pins to be fixed on the quick-change brackets. By inserting or disengaging the quick-change oil cylinders or quick-change pins, the quick change of different working tools of the loader is realized. ; but this structure has two disadvantages: [0003] 1. The center hole on the quick-change bracket and the center of the quick-change cylinder have high requirements for concentricity, which is difficult to process and the cos...

AI Technical Summary

Problems solved by technology

[0003] 1. The concentricity between the center hole on the quick-change bracket and the center of the quick-change oil cylinder is very high, and the processing is more difficult and the cost is higher;

[0004] 2. Even if the quick-change oil cylinder or the quick-change pin can be inserted into the fixing hole well, there must be an installation gap between the pin and the fixing hole. If there is no installation gap, the quick-change pin will be difficult to insert into the fixing hole

This structure can only roughly fix the quick change device on the machine tool, and will not cause large shaking, but there will still be small shaking, which makes the pin shaft and other parts easy to wear

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