Multi-stage sliding telescopic arm

Abstract

The invention discloses a multi-stage sliding telescopic arm. The multi-stage sliding telescopic arm comprises a basic arm and N telescopic arms, wherein the N telescopic arms comprise a first-stage telescopic arm, a second-stage telescopic arm, and the like, and an Nth-stage telescopic arm; the first-stage telescopic arm is arranged on the basic arm; the second-stage telescopic arm is nested and slides in the first-stage telescopic arm; the Nth-stage telescopic arm is nested and slides in the (N-1)th-stage telescopic arm; sliding assemblies are arranged between the basic arm and the first-stage telescopic arm, between the first-stage telescopic arm and the second-stage telescopic arm and between the (N-1)th-stage telescopic arm and the Nth-stage telescopic arm; and synchronization assemblies are arranged between the first-stage telescopic arm and the second-stage telescopic arm and between the (N-1)th-stage telescopic arm and the Nth-stage telescopic arm. The multi-stage sliding telescopic arm has the advantages that the effective telescopic distance is long, and the number of stages of the telescopic arms can be increased according to needs.

Description

technical field [0001] The invention relates to the technical field of telescopic arms, in particular to a multi-stage sliding telescopic arm. Background technique [0002] At present, the traditional nested telescopic boom structure is mostly two-stage, and its basic boom and telescopic boom transmission forms are generally divided into two types: cylinder transmission and chain transmission. This two-stage telescopic arm structure is generally only used for mechanical equipment used for relatively short telescopic distances. [0003] Notification number is the Chinese invention patent of CN104989797A and proposes a kind of three-stage telescopic arm, and this telescopic arm is connected by chain, and the effective extension distance is longer, and the first and second stage telescopic arms can keep synchronous expansion and contraction. However, due to the increasingly large-scale manufacturing of machinery and equipment in my country, the length of the three-stage telesc...

AI Technical Summary

Problems solved by technology

However, due to the increasingly large-scale manufacturing of machinery and equipment in my country, the length of the three-stage telescopic arm is still insufficient, making it difficult to meet the actual requirements in the actual use process.

The existing arm-to-arm transmission form cannot be expanded to three stages or above, mainly because if the multi-stage telescopic arm adopts the chain transmission form, the existing link structure cannot drive the multi-stage telescopic arm to synchronously expand and contract

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