CN215417665U

CN215417665U - Novel cable for servo motor

Info

Publication number: CN215417665U
Application number: CN202120713775.9U
Authority: CN
Inventors: 杜文斌
Original assignee: Huai'an Shengtong Special Cable Co ltd
Current assignee: Huai'an Shengtong Special Cable Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-01-04
Anticipated expiration: 2031-04-08

Abstract

The utility model provides a novel cable for a servo motor, which comprises a plurality of cable cores, wherein an insulating layer is sleeved outside each cable core, the insulating layers are twisted to form a cable core layer, the twisting pitches are different, a cable core wrapping tape is sleeved outside each N insulating layers, and N is an integer greater than 1; the outside cover of many sinle silk band is equipped with first shielding layer, and first shielding layer outside cover is equipped with the second shielding layer, and the outside cover of second shielding layer is equipped with the outer jacket. The utility model has excellent transmission stability, bending resistance and wear resistance, and prolongs the service life.

Description

Novel cable for servo motor

Technical Field

The utility model belongs to the technical field of servo cables, and particularly relates to a novel cable for a servo motor.

Background

In recent years, with the rapid development of the industrial automation industry, the development of related supporting industries is greatly promoted, particularly, in the power provider-servo motor industry, a servo motor is high-precision transmission equipment and can accurately position each command action of a system, so that each command sent by the servo motor must be accurate, the transmission process is guaranteed to be free from distortion, and meanwhile, the motor moves along with the equipment in the working process, so that a servo cable which plays a decisive role in signal transmission of the servo motor needs to have high transmission stability, super-strong bending resistance and super-strong wear resistance.

In the prior art, the cable for the servo motor adopts a pure copper conductor, so that the strength is low and the bending resistance effect is poor; the insulating layer is made of PVC material, so that the friction coefficient is high, the dielectric loss is high, and the insulating layer is easy to crack when bent; the wire cores adopt the same twisting pitch, and signals are easy to interfere with each other; the shielding layer is a single-layer shielding woven by copper wires, so that the signal shielding effect is poor; the sheath adopts the PVC material, if the cable uses under the environment of low temperature, high greasy dirt, high humidity for a long time, the easy fracture of cable sheathing layer, current cable can't satisfy high transmission stability and resistant bending property.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel cable for a servo motor, which has excellent transmission stability, bending resistance and wear resistance and prolongs the service life.

The utility model provides the following technical scheme:

a novel cable for a servo motor comprises a plurality of cable cores, wherein an insulating layer is sleeved on the outer side of each cable core, the insulating layers are twisted to form a cable core layer, the twisting pitches of the insulating layers are different, a cable core wrapping tape is sleeved on the outer side of each N insulating layers, and N is an integer greater than 1; the outside cover of many sinle silk band is equipped with first shielding layer, first shielding layer outside cover is equipped with the second shielding layer, and second shielding layer outside cover is equipped with the outer jacket.

Preferentially, the cable core adopts a high-strength tinned copper-aluminum alloy wire conductor and is filled with high-strength fiber wires, and the stranding pitch is 8 times.

Preferably, the insulating layer for reducing the friction coefficient and increasing the anti-electromagnetic interference performance is made of a polyetheretherketone material.

Preferentially, the first shielding layer is made of an aluminum-plastic composite tape, so that the signal shielding effect is enhanced.

Preferentially, the second shielding layer is made of copper wire braided belts, so that the signal shielding effect is enhanced.

Preferably, the outer protective layer is made of an environment-friendly fluoroplastic material.

The utility model has the beneficial effects that:

1. the cable core adopts a high-strength tinned copper-aluminum alloy wire conductor and is filled with high-strength fiber wires, so that the conductor is prevented from being broken in the reciprocating bending use process of the cable, and the service life of the cable is prolonged;

2. the insulating layer is made of polyether-ether-ketone materials, so that the cable has excellent high and low temperature resistance, bending resistance, low friction coefficient and excellent anti-electromagnetic interference performance, the friction loss of the cable is reduced, and the transmission distortion caused by mutual interference between signals is avoided;

3. the insulating layers are twisted by adopting various twisting pitches, so that the difference of the twisting pitches among different wire groups is ensured, the signal transmission distortion caused by the fact that the signal emission frequency between different wire groups cannot cause resonance is realized, and meanwhile, the double-shielding-layer structure is adopted, so that the interference of an external signal to the motor is prevented;

4. the outer sheath is made of environment-friendly fluoroplastic materials, so that the bending resistance, low friction coefficient, high wear resistance, high and low temperature resistance and oil stain resistance of the cable are improved, and the application range is expanded.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic cross-sectional view of a cable of the present invention.

Labeled as: 1. the cable comprises a cable core, 2 insulating layers, 3 core wrapping tapes, 4 first shielding layers, 5 second shielding layers and 6 outer protective layers.

Detailed Description

As shown in figure 1, a novel cable for servo motor, including many cable cores 1, cable core 1 adopts high-strength tin-plated copper aluminum alloy silk conductor and packs and has high strength cellosilk, and the transposition pitch is 8 times, can guarantee that the cable avoids the conductor fracture in reciprocating bending use, can make the cable reciprocate more than 2000 ten thousand times in the tow chain box.

As shown in figure 1, an insulating layer 2 is sleeved on the outer side of each cable core 1, the insulating layer 2 is made of a polyether-ether-ketone material, the material has excellent high and low temperature resistance and bending resistance, and simultaneously has a low friction coefficient, so that insulation and peeling are not caused and signal transmission is not influenced due to mutual friction between the insulating wire cores when the cable is used, and meanwhile, the material has excellent anti-electromagnetic interference performance and avoids mutual interference between signals and transmission distortion. The insulating layers 2 are twisted to form cable core layers, the twisting pitches are different, the scientific pitch design is adopted, the twisting pitch difference between different line groups is guaranteed, and signal transmission distortion caused by the fact that the signal emission frequency between different line groups cannot cause resonance is achieved. Every N insulating layer 2 outside cover is equipped with sinle silk band 3, and N is for being greater than 1 integer. As shown in fig. 1, a wire core wrapping tape 3 is sleeved outside each 2 insulating layers 2.

As shown in fig. 1, the outer side of the wire core wrapping belts 3 is sleeved with a first shielding layer 4, the first shielding layer 4 is made of an aluminum-plastic composite belt, the outer side of the first shielding layer 4 is sleeved with a second shielding layer 5, the second shielding layer 5 is made of a copper wire braided belt, the signal shielding effect is enhanced, and the external signal is prevented from interfering with the motor.

As shown in fig. 1, an outer protective layer 6 is sleeved outside the second shielding layer 5, the outer protective layer 6 is made of an environment-friendly fluoroplastic material, and the material has excellent bending resistance, low friction coefficient, high wear resistance, high and low temperature resistance and various oil stains resistance, so that the cable can be used at the temperature of-40 ℃ for a long time in an environment with high oil stains and high humidity, the electric wire cannot crack, and the use range of the cable is expanded.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel cable for servo motor which characterized in that: the cable comprises a plurality of cable cores, wherein an insulating layer is sleeved outside each cable core, the insulating layers are twisted to form a cable core layer, the twisting pitches of the insulating layers are different, a cable core wrapping tape is sleeved outside each N insulating layers, and N is an integer greater than 1; a first shielding layer is sleeved outside the wire core wrapping belts, a second shielding layer is sleeved outside the first shielding layer, and an outer protective layer is sleeved outside the second shielding layer;

the cable core adopts a high-strength tinned copper-aluminum alloy wire conductor and is filled with high-strength fiber wires, and the stranding pitch is 8 times; the insulating layer for reducing the friction coefficient and increasing the anti-electromagnetic interference performance is made of a polyether-ether-ketone material; the first shielding layer is made of an aluminum-plastic composite tape; the second shielding layer is made of a copper wire braided belt; the outer jacket is made of environment-friendly fluoroplastic materials.