Novel closed type chain link group applied to drag chain

Abstract

The invention relates to a novel closed type chain link group applied to a drag chain. The novel closed type chain link group comprises a plurality of chain link units, all the chain link units are sequentially connected end to end, each chain link unit comprises a side plate and a supporting connecting panel, the side plate is divided into a left side plate and a right side plate, the left side plates and the right side plates are arranged on the two sides of each supporting connecting panel, the two adjacent chain link units are movably connected, the novel closed type chain link group is characterized in that each supporting connecting panels is provided with a front connecting panel and a rear connecting panel, the end face of the rear connecting panel is machined into a rear plane with a downward recess, the front connecting panel is arranged at the front end of the rear connecting panel, the lower side of the front connecting panel is processed into an arc-shaped inwards-concave surface, inwards-arranged fluctuation is formed, the rear plane is machined into a convex face matched with the arc-shaped inwards-concave face, and an inwards-concave arc-shaped area is formed between the rear plane and the rear connecting panel, when one chain link unit is connected with the adjacent chain link unit, the front connecting panel of one chain link unit is located on the rear plane of the other adjacent chain link unit, and a closed face with a gap of 0.1-0.5 mm is formed by the front connecting panel of one chain link unit and the rear plane of the other adjacent chain link unit, and when the adjacently connected chain link units are in a plane state, the end part of the front connecting panel positioned on the rear plane is arranged in the inwards-concave arc-shaped area. The closed face structure is designed structurally, the protection grade is better, particles with the particle size of 0.3 mm or above can be prevented through the novel closed face during normal operation of a product, and the problems of instability of drag chain operation and short service life caused by falling of the particles at present are solved.

Description

Technical field [0001] Technical Field The present invention relates to a drag chain, in particular applied to the new closed towline link set. Background technique [0002] Towline, also known as wire and cable protection towline (Cable carrier), without a cable or wire is a pneumatic or hydraulic tube and the tube to facilitate movement of the apparatus and the rotation thereof. [0003] Characteristics of continuous operation of the towline, towline for laying cables and oil and gas pipelines, the current towline mainly by different width dimensions, a high pitch assembled chain links, the protection need to move back and forth occasions cable, tubing, pipe, etc., in order to prevent their entanglement, wear, pull-off, scattered and hooking towline to be loaded in its protected form, and moved back and forth to achieve, facilitate the work of laying the pipeline, in particular in place of some staff to enter the inconvenience of use, placed inside the pipeline towline, towline...

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a new type of closed chain link group applied to drag chains, which solves the problem of excessive noise in the use process of the prior art

Images