CN209781436U

CN209781436U - Sleeve structure of inhaul cable

Info

Publication number: CN209781436U
Application number: CN201920593959.9U
Authority: CN
Inventors: 谭作见; 王成; 罗觉波; 李强
Original assignee: CHONGQING QIANCHENG AUTOMOBILE PARTS Co Ltd
Current assignee: CHONGQING QIANCHENG AUTOMOBILE PARTS Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2019-12-13
Anticipated expiration: 2029-04-26

Abstract

The utility model provides a sleeve structure of cable, includes interior bushing pipe, be equipped with bandlet and round wire on interior bushing pipe's the outer peripheral face, be equipped with the spacing groove on the both sides wall of bandlet respectively, the bandlet is the heliciform and coils on interior bushing pipe, and has the interval space between the bandlet of adjacent circle, round wire is the heliciform and coils on interior bushing pipe, and is the same with the spiral direction of bandlet, and round wire is arranged in the interval space between the bandlet, and is spacing by the spacing groove on the bandlet lateral wall, and the radial thickness d of interior bushing pipe is less than the thickness s of bandlet along the cross section of this round wire, and round wire, bandlet are along the length direction alternate arrangement of interior bushing pipe, cover the outer peripheral face of interior bushing pipe, form the supporting layer, the outer parcel plastic layer of. The utility model discloses simple structure, low in production cost, the pliability is good, can effectively satisfy the demand at narrow, the long-time normal work in complicated space.

Description

Sleeve structure of inhaul cable

Technical Field

The utility model relates to a cable field, in particular to sleeve pipe structure of cable.

Background

Guy cables, such as throttle guy cables, control guy cables and the like, are widely applied to the operation of throttle, turbine and the like of automobiles, motorcycles, unmanned planes, airplanes and the like.

generally, a sleeve of a cable needs to have better flexibility on the premise of ensuring toughness so as to meet the requirement of flexible arrangement in a narrow and complex space. However, toughness and flexibility are contradictory, and the existing cable sleeve is difficult to meet the requirements of flexibility and toughness at the same time. In addition, the inhaul cable sleeve is in the bending process, the situation that one side is pulled to be lengthened and the other side is pressed to be shortened can appear, the steel wire in the inhaul cable sleeve displaces, the plastic layer is extruded, the outer plastic layer is broken, the service life of the inhaul cable is seriously shortened, the steel wire in the inhaul cable sleeve frequently collides the lining pipe of the sleeve in the vibration environment of the inhaul cable, the lining pipe is further caused to deform along the radial direction, and the normal action of the steel wire in the lining pipe is seriously influenced.

disclosure of Invention

The utility model aims at the not enough of prior art, provide a sleeve pipe structure of cable, its simple structure, low in production cost, the pliability is good, can effectively satisfy the demand at narrow, the long-time normal work in complicated space.

the technical scheme of the utility model is that: the utility model provides a sleeve structure of cable, includes interior bushing pipe, be equipped with bandlet and round wire on interior bushing pipe's the outer peripheral face, be equipped with the spacing groove on the both sides wall of bandlet respectively, the bandlet is the heliciform and coils on interior bushing pipe, and has the interval space between the bandlet of adjacent circle, round wire is the heliciform and coils on interior bushing pipe, and is the same with the spiral direction of bandlet, and round wire is arranged in the interval space between the bandlet, and is spacing by the spacing groove on the bandlet lateral wall, and the radial thickness d of interior bushing pipe is less than the thickness s of bandlet along the cross section of this round wire, and round wire, bandlet are along the length direction alternate arrangement of interior bushing pipe, cover the outer peripheral face of interior bushing pipe, form the supporting layer, the outer parcel plastic layer of.

A cutting plane is arranged on one side of the round wire, which faces the lining pipe, and a space is arranged between the cutting plane and the outer peripheral surface of the lining pipe; or, the side of the round wire facing the lining pipe and the side of the round wire facing away from the lining pipe are respectively provided with a cutting plane, and a spacing space is arranged between the cutting plane facing the side of the lining pipe and the peripheral surface of the lining pipe.

The top point of the cross section of the round wire does not exceed the outer side surface of the flat belt.

The flat belt is made of 70# steel, and the thickness of the flat belt is 0.65 +/-0.05 mm.

The round wire is made of 70# steel, and the diameter of the round wire is smaller than the thickness of the flat belt.

The lining pipe is made of PTFE material, the inner diameter of the lining pipe is 1.8 +/-0.05 mm, and the outer diameter of the lining pipe is 2.75 +/-0.05 mm.

The plastic layer is made of PEP materials, and the thickness of the plastic layer is 0.5 +/-0.05 mm.

Adopt above-mentioned technical scheme to have following beneficial effect:

1. the sleeve structure of the inhaul cable comprises an inner lining pipe, and a pipe cavity of the inner lining pipe is used for assembling steel wires of the inhaul cable. The outer peripheral surface of the lining pipe is provided with a flat belt and a round wire, the flat belt and the round wire are used for keeping the shape of the lining pipe, and the lining pipe has toughness, can be bent in any direction and has flexibility. The utility model discloses a steel wire winding device, including ribbon, circle silk, liner pipe, limiting groove, limiting. The circular wires and the flat belts are alternately arranged along the length direction of the lining pipe to cover the peripheral surface of the lining pipe to form a supporting layer, the flat belts and the circular wires are alternately arranged to form the supporting layer, and the requirement of the pipe arrangement in narrow and complex spaces is flexibly met on the premise that the supporting strength of the lining pipe is guaranteed. The supporting layer is externally wrapped with a plastic layer, the plastic layer is combined to form a sleeve structure, the plastic layer plays an anti-corrosion role on the flat belt and the round wire, the round wire is limited by the limiting groove of the flat belt and is radially constrained along the inner lining pipe, and the sleeve structure can effectively prevent the round wire from radially displacing to extrude the plastic layer when being randomly bent, so that the plastic layer is prevented from being broken, and the service life of the stay cable sleeve is effectively prolonged.

2. The side of the round wire facing the lining pipe is provided with a cutting plane, and a spacing space is arranged between the cutting plane and the outer peripheral surface of the lining pipe, so that the round wire and the lining pipe form surface-to-surface contact, the strength of the round wire impacting the lining pipe is effectively reduced in a vibration environment, the deformation of the lining pipe is avoided, and the normal action of the steel wire is ensured.

The following further description is made with reference to the accompanying drawings and detailed description.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a diagram illustrating an arrangement of flat belts and round wires according to an embodiment of the present invention;

Fig. 4 is a cross-sectional view of a second embodiment of the present invention;

Fig. 5 is an enlarged view of fig. 4 at B.

In the attached drawing, 1 is a lining pipe, 2 is a flat belt, 3 is a round wire, 31 is a cutting plane, 4 is a limiting groove, 5 is a supporting layer, and 6 is a plastic layer.

Detailed Description

Example one

Referring to fig. 1 to 3, a specific embodiment of a sleeve structure of a cable is shown. The sleeve structure of the inhaul cable comprises a lining pipe 1, wherein a flat belt 2 and a round wire 3 are arranged on the outer peripheral surface of the lining pipe 1, the lining pipe is made of PTFE materials in the embodiment, the inner diameter of the lining pipe 1 is 1.8 +/-0.05 mm, and the outer diameter of the lining pipe 1 is 2.75 +/-0.05 mm. The two side walls of the flat belt 2 are respectively provided with a limiting groove 4, specifically, the limiting grooves are arc-shaped open grooves, the arc-shaped open grooves are formed in the lower portion of the side walls of the flat belt and face the opening of the lining pipe, the flat belt 2 is made of 70# steel, and the thickness of the flat belt 2 is 0.65 +/-0.05 mm. The flat belts 2 are spirally wound on the lining pipe 1, and space is reserved between adjacent circles of flat belts, so that the distance between the outer side faces of the adjacent circles of flat belts is smaller than the diameter of the steel wire, and the distance between the inner side faces of the adjacent circles of flat belts is larger than the diameter of the steel wire. The round wire 3 is spirally wound on the lining pipe 1 and is the same as the flat belts 2 in the spiral direction, the round wire 3 is positioned in the space between the flat belts 2 and limited by the limiting grooves 4 on the side walls of the flat belts, and particularly, the round wire 3 is made of 70# steel. In the present embodiment, a cutting plane 31 is disposed on a side of the circular wire 3 facing the lining tube 1, a space is provided between the cutting plane 31 and the outer circumferential surface of the lining tube 1, a vertex of the cross section of the circular wire 3 is flush with the outer circumferential surface of the flat belt 2, of course, the cutting plane 31 may be disposed on a side of the circular wire 3 facing the lining tube 1 and a side facing away from the lining tube, and a space may be provided between the cutting plane 31 facing the lining tube 1 and the outer circumferential surface of the lining tube 1. The round wires 3 and the flat belts 2 are alternately arranged along the length direction of the lining pipe 1 to cover the peripheral surface of the lining pipe 1 to form a supporting layer 5, the supporting layer 5 is wrapped by a plastic layer 6 to form a sleeve structure in a combined mode, in the embodiment, the plastic layer 6 is made of PEP materials, and the thickness of the plastic layer 6 is 0.5 +/-0.05 mm.

Example two

Referring to fig. 4 and 5, in the present embodiment, the diameter of the round wire 3 is set to be smaller than the thickness of the flat band 2, specifically, 0.6 ± 0.0.2 mm. The other structures are the same as those of the first embodiment.

The sleeve structure of the inhaul cable can normally work under the condition of-40-200 ℃, has good flexibility on the premise of meeting toughness, meets the requirement that the sleeve is bent along any direction, and can be used for narrow and complex space calandria. Through spacing to the circle silk, can also effectively avoid the plastic layer to break, effectively prolong bushing structure's life.

Claims

1. The utility model provides a sleeve pipe structure of cable which characterized in that: comprises a lining pipe (1), a flat belt (2) and round wires (3) are arranged on the peripheral surface of the lining pipe (1),

Two side walls of the flat belts (2) are respectively provided with a limiting groove (4), the flat belts (2) are spirally wound on the inner liner pipe (1), and an interval space is arranged between adjacent circles of the flat belts,

The round wire (3) is spirally wound on the lining pipe (1) and is identical to the spiral direction of the flat belt (2), the round wire (3) is positioned in a space between the flat belts (2) and limited by the limiting groove (4) on the side wall of the flat belt, the cross section of the round wire (3) is smaller than the thickness s of the flat belt (2) along the radial thickness d of the lining pipe (1), the round wire (3) and the flat belt (2) are alternately arranged along the length direction of the lining pipe (1) to cover the peripheral surface of the lining pipe (1) to form a supporting layer (5), and the plastic layer (6) is wrapped outside the supporting layer (5) to form a sleeve structure in a combined mode.

2. the sleeve structure of the traction cable according to claim 1, characterized in that: one side of the round wire (3) facing the lining pipe (1) is provided with a cutting plane (31), and a space is formed between the cutting plane (31) and the outer peripheral surface of the lining pipe (1); or the side of the round wire (3) facing the lining pipe (1) and the side of the round wire facing away from the lining pipe are respectively provided with a tangent plane (31), and a space is arranged between the tangent plane (31) facing the lining pipe (1) and the outer peripheral surface of the lining pipe (1).

3. The sleeve structure of the traction cable according to claim 1, characterized in that: the top point of the cross section of the round wire (3) does not exceed the outer side surface of the flat belt (2).

4. The sleeve structure of the traction cable according to claim 1, characterized in that: the flat belt (2) is made of 70# steel, and the thickness of the flat belt (2) is 0.65 +/-0.05 mm.

5. The sleeve structure of the traction cable according to claim 1, characterized in that: the round wire (3) is made of 70# steel, and the diameter of the round wire (3) is smaller than the thickness of the flat belt (2).

6. The sleeve structure of the traction cable according to claim 1, characterized in that: the lining pipe (1) is made of PTFE material, the inner diameter of the lining pipe (1) is 1.8 +/-0.05 mm, and the outer diameter of the lining pipe is 2.75 +/-0.05 mm.

7. The sleeve structure of the traction cable according to claim 1, characterized in that: the plastic layer (6) is made of PEP materials, and the thickness of the plastic layer (6) is 0.5 +/-0.05 mm.