CN204878278U

CN204878278U - Stopper push -and -pull sleeve pipe for flexible axle of shifting

Info

Publication number: CN204878278U
Application number: CN201520478249.3U
Authority: CN
Inventors: 张薇; 徐锡平; 蒋海滨; 常海浪
Original assignee: JIANGYIN TAIYANGCHENG CABLE INDUSTRY Co Ltd
Current assignee: JIANGYIN TAIYANGCHENG CABLE INDUSTRY Co Ltd
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2015-12-16
Anticipated expiration: 2025-07-06

Abstract

The utility model relates to a stopper push -and -pull sleeve pipe for flexible axle of shifting, it makes steel wire layer (3), second bandlet layer (4) and outer coat (5) from interior bushing pipe (1), first bandlet layer (2), the sth. Made by twisting of extremely including in proper order outward its characterized in that, the internal surface of interior bushing pipe (1) is the regular polygon structure, first bandlet layer (2) are closely around placing in on the surface of interior bushing pipe (1), second bandlet layer (4) interval is on arranging the surface of twisting with the fingers system steel wire layer (3) in, and opposite direction is put with winding of first bandlet layer (2) in second bandlet layer (4). The utility model discloses stopper push -and -pull sleeve pipe for flexible axle of shifting has reduction frictional resistance, raises the efficiency, improves life's advantage.

Description

Gearshift flexible axle stopper push-and-pull sleeve pipe

Technical field

The utility model relates to a kind of gearshift flexible axle stopper push-and-pull sleeve pipe.

Background technique

See Fig. 3 ~ Fig. 4, traditional gearshift flexible axle stopper push-and-pull sleeve pipe is three-decker, is from inside to outside respectively circular plastic inner lining pipe, twisting steel wire floor and outer coating layer.In use, particularly heavily on card automobile, due to gearshift flexible axle curved arrangement, for bending position, gearshift flexible axle particularly sheathed casing needs to bear very large curved pressure stress, ordinary casing easily occurs that internal lining pipe destroys, cause losing efficacy, in addition heavily card motor be arranged in below operator cabin, gearshift flexible axle requires the high temperature bearing 180 °, common flexible axle is difficult to ensure, secondly also require under the condition of curved arrangement, in an environment of high temperature, the shift control of flexible axle is wanted flexibly, and in cable core working procedure in sleeve pipe constantly and sleeve pipe there is the contact of axial relative displacement, this contact is arc shaped surface contact, form larger frictional force, not only reduce efficiency but also the working life of sleeve pipe and cable core is reduced.Therefore seek a kind of reduction surface friction drag, raise the efficiency, the gearshift flexible axle stopper push-and-pull sleeve pipe improving working life is particularly important.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and reduces surface friction drag, raise the efficiency, improve the gearshift flexible axle stopper push-and-pull sleeve pipe in working life.

The purpose of this utility model is achieved in that

A kind of gearshift flexible axle stopper push-and-pull sleeve pipe, it comprises internal lining pipe, the first bandlet layer, twisting steel wire floor, the second bandlet layer and outer coating layer from the inside to the outside successively, the internal surface of described internal lining pipe is regular polygon structure, described first bandlet layer is closely wound on the outer surface of internal lining pipe, described second bandlet interlayer is on the outer surface being wound on twisting steel wire floor, and the second bandlet layer is contrary with the direction around the home of the first bandlet layer.

Compared with prior art, the beneficial effects of the utility model are:

The utility model gearshift flexible axle stopper push-and-pull sleeve pipe has reduction surface friction drag, raises the efficiency, improves the advantage in working life.

Accompanying drawing explanation

Fig. 1 is the cross sectional representation of the utility model gearshift flexible axle stopper push-and-pull sleeve pipe.

Fig. 2 is the Longitudinal cross section schematic of the utility model gearshift flexible axle stopper push-and-pull sleeve pipe.

Fig. 3 is the cross sectional representation of tradition gearshift flexible axle stopper push-and-pull sleeve pipe.

Fig. 4 is the Longitudinal cross section schematic of tradition gearshift flexible axle stopper push-and-pull sleeve pipe.

Wherein:

Internal lining pipe 1

First bandlet layer 2

Twisting steel wire floor 3

Second bandlet layer 4

Outer coating layer 5.

Embodiment

See Fig. 1 ~ Fig. 2, the one gearshift flexible axle stopper push-and-pull sleeve pipe that the utility model relates to, it comprises internal lining pipe 1, first bandlet layer 2, twisting steel wire floor 3, second bandlet layer 4 and outer coating layer 5 from the inside to the outside successively.

The outer surface of described internal lining pipe 1 is round structure, and the internal surface of described internal lining pipe 1 is regular polygon structure, and polygonal is preferably regular hexagon.The material of internal lining pipe 1 is PTFE, farthest can reduce the surface friction drag between the metallic material of cable core and the nonmetallic material of internal lining pipe, and become line contact because the contact between cable core and the internal lining pipe of regular polygon inwall is contacted from traditional arc shaped surface, reduce surface friction drag.

Described first bandlet layer 2 is closely wound on the outer surface of internal lining pipe 1; first bandlet layer 2 can farthest under bending condition; still can protect the unimpeded use of internal lining pipe; intercept the thermal stress that engine high-temperature passes to internal lining pipe to a certain extent simultaneously, be unlikely to the PTFE plastic tube hot mastication making internal lining pipe.

Described twisting steel wire floor 3 adopts steel wire twisting in the first bandlet layer 2 outer surface.

Described second bandlet layer 4 interval is wound on the outer surface of twisting steel wire floor 3.Due to the second bandlet layer 4 interval around the home, improve the cased bearing capacity of bending condition preferably, protect internal lining pipe, improve the life-span.Second bandlet layer 4 is contrary with the direction around the home of the first bandlet layer 2.

Described outer coating layer 5 is coated on the outer surface of the second bandlet layer 4.

Claims

1. a gearshift flexible axle stopper push-and-pull sleeve pipe, it is characterized in that it comprises internal lining pipe (1), the first bandlet layer (2), twisting steel wire floor (3), the second bandlet layer (4) and outer coating layer (5) from the inside to the outside successively, the internal surface of described internal lining pipe (1) is regular polygon structure, described first bandlet layer (2) is closely wound on the outer surface of internal lining pipe (1), described second bandlet layer (4) interval is wound on the outer surface of twisting steel wire floor (3), and the second bandlet layer (4) is contrary with the direction around the home of the first bandlet layer (2).