CN206312634U - A kind of resistance to bent fatigue robot drag chain power cable high - Google Patents

Abstract

The utility model provides a kind of resistance to bent fatigue robot drag chain power cable high, including cable core, the cable core is knitted to form by several bundle strand conductors, and angle of weave is 30 45 degree, bundle strand conductor is formed by several wire bundle strands, and the pitch of bundle strand is 12 16 times of stranded diameter.Situations such as turn-knob is bent from conductor break, heart yearn caused by can avoiding because of long-term repeated flex in structure design, even oversheath ftractures；Robotic manipulator can be born operationally ceaselessly to bend and reverse at least up to more than 15,000,000 times, the power cable of ordinary construction cannot even be reused less than 100,000 times；Strong antijamming capability, due to having added screen layer, even also will not mutually produce influence when bunchy is used, can use safely；Mechanical performance is superior, and not only the overall tensile strength of cable is very good, at the same can oily with mechanical resistant, wear-resisting, radioresistance, meet the rigors of use environment.

Description

A kind of resistance to bent fatigue robot drag chain power cable high

Technical field

The utility model is related to cable, and in particular to a kind of resistance to bent fatigue robot drag chain power cable high.

Background technology

Common motive power cable during fabrication conductor, material, structures shape its using process if it is desired to ceaselessly hold Moved by cyclic bending, then cable can bring it about deformation, play " rotation " since conductor quickly, so as to cause conductor to break core, Or insulating materials it is aging, surrender cracking, and produce short circuit.

Increasing occasion substitutes artificial control operation by machine now, such as the robot on streamline undertakes each Kind responsibility, but the service life of product is influenceed due to the middle defect of cable design manufacturing process, cable is regular to be needed to safeguard Change, so as to considerably increase maintenance cost, reduce production efficiency, or even there is security risk.

The content of the invention

A kind of situation of the utility model for prior art, there is provided resistance to bent fatigue robot drag chain power cable high, Turn-knob song, even oversheath cracking etc. from conductor break, heart yearn caused by can avoiding because of long-term repeated flex in structure design Situation；Robotic manipulator can be born operationally ceaselessly to bend and reverse at least up to more than 15,000,000 times, commonly The power cable of structure cannot even be reused less than 100,000 times；Strong antijamming capability, due to having added screen layer, even Also influence will not be mutually produced when bunchy is used, can be used safely；Mechanical performance is superior, not only the overall tensile strength of cable It is very good, at the same can oily with mechanical resistant, wear-resisting, radioresistance, meet the rigors of use environment.

In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of resistance to bent fatigue robot high is dragged Chain power cable, including cable core, the cable core are knitted to form by several bundle strand conductors, and angle of weave is 30-45 degree, bundle strand Conductor is formed by several wire bundle strands, and the pitch of bundle strand is 12-16 times of stranded diameter.

Used as the preferred of such scheme, the quantity of bundle strand conductor is 16 strands, and per share bundle strand conductor is 21 wire bundle strand shapes Into bundle strand line.

Used as the preferred of such scheme, cable core surface is enclosed with insulating barrier, isolation enhancement layer, screen layer and shield successively Set.

Used as the preferred of such scheme, the material of insulating barrier is TPE.

Used as the preferred of such scheme, the average thickness of insulating barrier is 1.0mm.

Used as the preferred of such scheme, isolation enhancement layer is the polyamide fibre yarn for being wrapped in surface of insulating layer.

Used as the preferred of such scheme, screen layer is to be wrapped in the tinned copper wire that layer surface is strengthened in isolation.

Used as the preferred of such scheme, the winding direction of screen layer is identical with the winding direction of isolation enhancement layer.

Used as the preferred of such scheme, the material of sheath is PUR.

Used as the preferred of such scheme, the average thickness of sheath is 1.6mm.

The beneficial effects of the utility model are：

1st, conductor optimizes twisting pitch using the 6th kind or more fine-grade conductor of cable conductor regulation in GB/T3956 Stranded bunchy, then it is woven into conductor by choosing the braid angle of optimization.Such conductor structure, no matter carry out 180 ° bending or It is 180 ° of distortion, internal stress is averagely cancelled out each other all without concentrating on certain point, therefore can be realized curved to greatest extent Qu Xingneng and twisting property.

2nd, insulated using TPE material.Good electric property ensures that the normal of cable is used, and the more important material is simultaneously There is soft and elasticity again, the stress because being produced with distortion by bending can be actively discharged, the deformation for therefore causing is replied.

3rd, the nylon fibre yarn of high intensity is equidirectional is wound, rather than by the way of braiding.The mode of winding makes Cable is more flexible.Fibrous material can also provide more preferable bulk strength for cable, it is to avoid the metal material in cable is subject to Big towing impulsive force.

4th, the shielding of winding tinned copper wire, lifts interference free performance, is used but also as ground connection, winding direction and fibrous material In the same direction, the original flexible and resistance to Qu Xingneng of holding of cable is so made.

5th, the PUR sheaths of squash type, make screen layer be directly embedded into sheath material, and the stress together with sheath more can be big Big lifting cable entirety tensile strength.The wear-resisting of sheath material, oil resistant and softness, can meet use environment again simultaneously It is required that.

6th, whole cable uses environmental-protecting material, without the low cigarette of halogen flame retardant, meets the requirement that RoHS instructs-II.

7th, special structure design, can use in robot drag chain for a long time as power cable, after tested, bending More than 15,000,000 times, continuous reliably working can reach 18 months number of times, meet Special use occasion, greatly reduce when safeguarding Between.

Figure of description

Fig. 1 is structural representation of the present utility model.

Specific embodiment

With reference to specific embodiment, the utility model is described in further detail.

As shown in figure 1, a kind of resistance to bent fatigue robot drag chain power cable high, including cable core 1, cable core surface is wrapped successively It is wrapped with insulating barrier 2, isolation enhancement layer 3, screen layer 4 and sheath 5.

Cable core is knitted to form by several bundle strand conductors, and angle of weave is 30-45 degree, and the angle preferably uses 30 degree, beam Twist conductor to be formed by several wire bundle strands, wire uses electrician's annealed copper wire, and the pitch of bundle strand is 12-16 times of stranded diameter, Preferably 14 times of multiple.

The quantity of bundle strand conductor is 16 strands, and per share bundle strand conductor is the bundle strand line that 21 wire bundle strands are formed.

The 6th kind or more fine-grade conductor that conductor is specified using cable conductor in GB/T3956, the twisting pitch of optimization Stranded bunchy, then conductor i.e. cable core is woven into by choosing the angle of weave of optimization, no matter such conductor structure carries out 180 ° Bending or 180 ° of distortion, internal stress are averagely cancelled out each other all without concentrating on certain point, therefore can be realized most Limits bending property and twisting property.

The material of insulating barrier is TPE.Specially squash type extrudes TPE, insulation average thickness 1.0mm, it is ensured that cable possesses Good electric property, simultaneously because TPE made of soft and with elasticity, can very well filter stress, protects cable conductor.

Isolation enhancement layer is the equidirectional polyamide fibre yarn for being wrapped in surface of insulating layer.Specifically entered by many 20d polyamide fibre yarns Row winding, as insulation and shielding separation layer, while having the effect for strengthening cable strength concurrently, increases cable overall flexibility.

Screen layer is to be wrapped in the tinned copper wire that layer surface is strengthened in isolation.Specifically it is entwined by many tinned copper wires, it is single Silk diameter：0.2mm, winding direction is consistent with isolation enhancement layer direction, winds density about 80%, and winding shielding total cross section is about 2.5mm²。

The material of sheath is PUR.Using polyether-type flexibel polyurethane（PUR）Material squash type is extruded, average thickness 1.6mm, material property is wear-resisting, oil resistant, radioresistance, can meet the requirement of particular service requirement and environment.

For a person skilled in the art, the technical scheme described in foregoing embodiments can still be repaiied Change, or equivalent is carried out to which part technical characteristic, all within spirit of the present utility model and principle, that is made is any Modification, equivalent, improvement etc., should be included within protection domain of the present utility model.

Claims (10)

1. a kind of resistance to bent fatigue robot drag chain power cable high, including cable core, it is characterised in that the cable core is by several Bundle strand conductor is knitted to form, and angle of weave is 30-45 degree, and bundle strand conductor is formed by several wire bundle strands, and the pitch of bundle strand is 12-16 times of stranded diameter.

2. resistance to bent fatigue robot drag chain power cable as claimed in claim 1 high, it is characterised in that the number of bundle strand conductor It is 16 strands to measure, and per share bundle strand conductor is the bundle strand line that 21 wire bundle strands are formed.

3. resistance to bent fatigue robot drag chain power cable as claimed in claim 1 or 2 high, it is characterised in that cable core surface Insulating barrier, isolation enhancement layer, screen layer and sheath are enclosed with successively.

4. resistance to bent fatigue robot drag chain power cable as claimed in claim 3 high, it is characterised in that the material of insulating barrier It is TPE.

5. resistance to bent fatigue robot drag chain power cable as claimed in claim 4 high, it is characterised in that insulating barrier it is average Thickness is 1.0mm.

6. resistance to bent fatigue robot drag chain power cable as claimed in claim 3 high, it is characterised in that isolation enhancement layer is It is wrapped in the polyamide fibre yarn of surface of insulating layer.

7. resistance to bent fatigue robot drag chain power cable as claimed in claim 3 high, it is characterised in that screen layer is winding Strengthen the tinned copper wire of layer surface in isolation.

8. resistance to bent fatigue robot drag chain power cable as claimed in claim 7 high, it is characterised in that the winding of screen layer Direction is identical with the winding direction of isolation enhancement layer.

9. resistance to bent fatigue robot drag chain power cable as claimed in claim 3 high, it is characterised in that the material of sheath is PUR。

10. resistance to bent fatigue robot drag chain power cable as claimed in claim 9 high, it is characterised in that sheath it is average Thickness is 1.6mm.