CN215220330U

CN215220330U - Bending-resistant servo motor wire

Info

Publication number: CN215220330U
Application number: CN202121718482.6U
Authority: CN
Inventors: 余军; 王瑶
Original assignee: Suzhou Fuertai Optoelectronic Technology Co ltd
Current assignee: Suzhou Fuertai Optoelectronic Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-17
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to a cable technical field specifically is a servo motor line of resistant bending, including the oversheath, weave the shielding layer, inner sheath and heart yearn, be equipped with heart yearn sheath and filling rope in the inner sheath, seted up the cavity that holds the heart yearn and pass through in the heart yearn sheath, the inner wall of heart yearn sheath includes the circular arc depressed part that equals with the external diameter of heart yearn, connects the straight limit section at circular arc depressed part both ends to and connect the circular arc protruding section of straight limit section, be equipped with the circular arc transition of sunkening down between circular arc protruding section and the straight limit section, the outer wall of heart yearn sheath just is located the one end integrated into one piece that circular arc protruding section is opposite to and has outer sunken. The utility model discloses a butt between heart yearn sheath and the filling rope is fixed, and the heart yearn runs through and fixes in the cavity in the heart yearn sheath, can increase the toughness of motor line, can improve the resistant bending force of motor line simultaneously.

Description

Bending-resistant servo motor wire

Technical Field

The utility model relates to a cable technical field specifically is a servo motor line of resistant bending.

Background

The servo motor wire is widely applied to a servo motor system as flexible power transmission, the servo motor wire can be prone to cracking due to frequent twisting and moving in the working process, the servo motor wire can crack in the laying process at a place with large bending degree, the copper stranded wire is prone to yielding fatigue and core breaking, and the service life is short

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a servo motor line of resistant bending improves the flexibility of servo motor line and increases the life of servo motor line.

For the purpose of realizing the flexibility and the life of above-mentioned increase servo motor line, the utility model provides a following technical scheme: include oversheath, woven shield, inner sheath and heart yearn that cup joint in proper order from outside to inside, be equipped with heart yearn sheath and packing rope in the inner sheath, the heart yearn sheath uses the packing rope to be annular evenly distributed as the center, set up the cavity that holds the heart yearn and pass through in the heart yearn sheath, the inner wall of heart yearn sheath includes the circular arc depressed section that equals with the external diameter of heart yearn, connects the straight edge section at circular arc depressed section both ends to and connect the circular arc protruding section of straight edge section, be equipped with the circular arc transition of sinking between circular arc protruding section and the straight edge section, the outer wall of heart yearn sheath just is located circular arc protruding section one end integrated into one piece back to back and has outer sunken, outer sunken external diameter with the packing rope equals.

Optionally, the core wire comprises a silver-plated conductor, a conductor shielding layer extruded outside the silver-plated conductor, and a conductor insulating layer extruded outside the conductor shielding layer, and the conductor insulating layer is extruded outside the magnesium hydroxide flame-retardant sheath.

Optionally, the braided shielding layer comprises a shielding FPC film, a shielding aluminum film and a metal braided net from inside to outside in sequence, and the metal braided net is a round pipe structure which is formed by crisscross braiding of tinned copper wires.

Optionally, the inner wall of the outer sheath is integrally formed with elastic strips, and the elastic strips are uniformly distributed in an annular shape by taking the core wire as a center.

Optionally, the outer wall of heart yearn sheath and be located the circular arc sunken transition back to back one end integrated into one piece have the hypotenuse, and the hypotenuse of two adjacent heart yearn sheaths butt each other, the outer wall of heart yearn sheath and be located circular arc sunken section back to back one end integrated into one piece have the outer circular arc, outer circular arc and inner sheath butt.

Compared with the prior art, the utility model provides a servo motor line of resistant bending possesses following beneficial effect: the utility model discloses a butt between heart yearn sheath and the filling rope is fixed, and the heart yearn runs through and fixes in the cavity in the heart yearn sheath, can increase the resistant bending force that can improve the motor line simultaneously of the toughness of motor line, can avoid the motor line because the fracture phenomenon that frequent bending leads to through the elasticity strip.

Drawings

FIG. 1 is a longitudinal sectional view of the present invention;

FIG. 2 is a longitudinal sectional view of the core wire sheath of the present invention;

fig. 3 is a schematic longitudinal section of the middle braided shield of the present invention.

In the figure: 1. an outer sheath; 2. an inner sheath; 3. weaving a shielding layer; 4. a core wire; 5. a core wire sheath; 6. filling a rope; 501. a cavity; 502. a circular arc depressed section; 503. a straight side section; 504. a circular arc convex section; 505. arc concave transition; 506. an outer recess; 507. a bevel edge; 508. an outer circular arc; 7. a silver-plated conductor; 8. a conductor shield layer; 9. a conductor insulation layer; 10. a flame retardant jacket; 11. an elastic strip; 12. a shielding FPC film; 13. a shielding aluminum film; 14. a metal mesh grid.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1 to 3, the present invention provides a bending-resistant servo motor wire, which comprises an outer sheath 1, a braided shield layer 3, an inner sheath 2 and a core wire 4, which are sequentially sleeved from outside to inside, wherein a core wire sheath 5 and a filling rope 6 are arranged in the inner sheath 2, the core wire sheath 5 is uniformly distributed in a ring shape with the filling rope 6 as the center, a cavity 501 for accommodating the core wire 4 is arranged in the core wire sheath 5, the inner wall of the core wire sheath 5 comprises an arc concave section 502 with the same outer diameter as the core wire 4, the core wire 4 penetrates through the cavity 501 arranged in the core wire sheath 5, the outer edge of the core wire 4 is abutted and fixed with the arc concave section 502, a straight section 503 connected with both ends of the arc concave section 502 and an arc convex section 504 connected with the straight section 503, an arc concave transition 505 is arranged between the arc convex section 504 and the straight section 503, the roundness of the core wire sheath 5 near the filling rope 6 is improved, the outer wall of the core wire sheath 5 and the end opposite to the arc convex section 504 are integrally formed with an outer recess 506, the outer recess 506 is equal to the outer diameter of the filling rope 6, and the core wire sheath 5 can be mutually abutted and fixed on the outer side of the filling rope 6 through the outer recess 506.

The core wire 4 is including silver-plated conductor 7, crowded package is in the outer conductor shielding layer 8 of silver-plated conductor 7 to and crowded package is in the outer conductor insulation layer 9 of conductor shielding layer 8, silver-plated conductor 7 can reduce surface resistance, thereby the electric conductivity of conductor has improved on the whole, conductor shielding layer 8 can shield the interference signal of outside to core wire 4, conductor insulation layer 9 is crowded package outward has the fire-retardant sheath of magnesium hydrate 10, fire-retardant sheath 10 can avoid the motor line to take place the unexpected condition and lead to the phenomenon that the motor line is burnt out.

The braided shielding layer 3 sequentially comprises a shielding FPC film 12, a shielding aluminum film 13 and a metal braided net 14 from inside to outside, the metal braided net 14 can be a tinned copper wire or a copper-clad aluminum metal wire which is in a cross-shaped staggered braided circular tube structure, and the braided metal braided net 14 has good impact resistance and elasticity, can have elasticity when a motor wire is bent, and further avoids the phenomena of cracking and the like caused by bending.

The inner wall integrated into one piece of oversheath 1 has elasticity strip 11, and elasticity strip 11 uses heart yearn 4 to be annular evenly distributed as the center, and elasticity strip 11 is made by rubber, has good elasticity and then can have certain elasticity space when the motor line takes place to warp and warp, and elasticity strip 11 can carry out elastic support to oversheath 1.

The outer wall of heart yearn sheath 5 and be located the circular arc sunken transition 505 one end integrated into one piece back to back and have the hypotenuse 507, the hypotenuse 507 butt each other of two adjacent heart yearn sheaths 5, adjacent heart yearn sheath 5 carries out mutual butt and then heart yearn sheath 5 can direct butt fix in the outside of filling rope 6, the outer wall of heart yearn sheath 5 and be located circular arc sunken section 502 one end integrated into one piece back to back and have outer circular arc 508, outer circular arc and inner sheath butt.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a servo motor line of resistant bending, includes oversheath (1), woven shield (3), inner sheath (2) and heart yearn (4) that cup joint in proper order from outside to inside, its characterized in that: be equipped with heart yearn sheath (5) and filling rope (6) in inner sheath (2), heart yearn sheath (5) are annular evenly distributed as the center with filling rope (6), set up cavity (501) that hold heart yearn (4) and pass through in heart yearn sheath (5), the inner wall of heart yearn sheath (5) includes circular arc depressed section (502) that equals with the external diameter of heart yearn (4), connects straight edge section (503) at circular arc depressed section (502) both ends to and circular arc protruding section (504) of connecting straight edge section (503), be equipped with circular arc sunken transition (505) between circular arc protruding section (504) and straight edge section (503), the outer wall of heart yearn sheath (5) just is located circular arc protruding section (504) one end integrated into one piece dorsad and has outer sunken (506), outer sunken (506) equals with the external diameter of filling rope (6).

2. A bend resistant servomotor wire as set forth in claim 1, wherein: the core wire (4) comprises a silver-plated conductor (7), a conductor shielding layer (8) extruded outside the silver-plated conductor (7), and a conductor insulating layer (9) extruded outside the conductor shielding layer (8), wherein a magnesium hydroxide flame-retardant sheath (10) is extruded outside the conductor insulating layer (9).

3. A bend resistant servomotor wire as set forth in claim 1, wherein: the braided shielding layer (3) sequentially comprises a shielding FPC film (12), a shielding aluminum film (13) and a metal braided net (14) from inside to outside, and the metal braided net (14) is a round tube structure which is formed by crisscross braiding of tinned copper wires.

4. A bend resistant servomotor wire as set forth in claim 1, wherein: the inner wall of the outer sheath (1) is integrally formed with elastic strips (11), and the elastic strips (11) are annularly and uniformly distributed by taking the core wire (4) as the center.

5. A bend resistant servomotor wire as set forth in claim 1, wherein: the outer wall of heart yearn sheath (5) just is located circular arc sunken transition (505) one end integrated into one piece back to back and has hypotenuse (507), hypotenuse (507) of two adjacent heart yearn sheaths (5) butt each other, the outer wall of heart yearn sheath (5) just is located circular arc sunken section (502) one end integrated into one piece back to back and has outer circular arc (508), outer circular arc (508) and inner sheath (2) butt.