CN209947466U - Special counter weight cable for high-flexibility lifting appliance - Google Patents

Abstract

The utility model relates to a special counter weight cable of high flexible hoist has solved the not enough of prior art, and technical scheme is: including transposition cable core, central lead bead chain counter weight strip and peripheral space lead bead chain counter weight strip, the mutual butt of transposition cable core and evenly arranging the periphery of central lead bead chain counter weight strip, the mutual space department of transposition cable core is filled with peripheral space lead bead chain counter weight strip, every cable core all including a plurality of conductors, the outside of every conductor has all wrapped up the insulating layer, and the conductor in same cable core is wrapped up by weaving the enhancement layer, and transposition cable core, central lead bead chain counter weight strip and peripheral space lead bead chain counter weight strip all wrap up in the isolation layer, the outside of isolation layer is equipped with the water blocking layer, and the outside of water blocking layer includes is equipped with the oversheath.

Description

Special counter weight cable for high-flexibility lifting appliance

Technical Field

The utility model relates to a cable, concretely relates to special counter weight cable of high flexible hoist.

Background

The high-grade and high-quality special balance weight cable for the high-flexibility lifting appliance special for the port crane undoubtedly plays an extremely important role. The working state and operation of the port crane frequently determine that the cable matched with the port crane has excellent mechanical property, flexibility and shake and winding resistance. In the field, the hanger cables matched with a plurality of cable manufacturers in China all adopt cables with conventional design, and the cable has very short service cycle and can not ensure the safety performance on the occasion; the research and development of and the application of the special counterweight cable for the high-performance and high-flexibility lifting appliance are urgent, and the application of the special counterweight cable for the high-performance and high-flexibility lifting appliance is imperative, which arouses the high importance of many cable enterprises in China.

The technical requirements of the special counterweight cable for the high-flexibility hanger are fundamentally different from the technical requirements of the common hanger cable in process and material. The common general sling cable can be distorted, bulged and broken when used on a crane, the service life of the cable is short, the general busy crane can be used hundreds of times every day, day after day, the lower end of the cable is over-fatigued and gradually deforms under the action of torsional force and external wind blowing shaking force, the technical requirements for matched cables are greatly different along with the continuous change of the height of the crane, in the operation process of the crane, the cable can be influenced by the external environment and wind power to generate large shaking force, the torsional stress in the cable can be larger, after the traditional port crane cable is used for the crane, the torsional stress can not be timely eliminated or relieved, the core can be frequently broken, and the common sling cable is difficult to be used on the crane for a long time. In order to meet the normal operation of port crane equipment and prolong the service life of cables, a special cable for a special crane must be used under the condition, and a high-performance high-flexibility wind-resistant special cable for the crane is developed and developed, so that the special requirement of the port crane industry can be met. At present, the special balance weight cable for the port high-flexibility lifting appliance in China is vertical up and down in the using process, so that the climbing height of the cable can have great influence on the using stability in the operating process, and the working efficiency is determined. When the height of the suspension bridge is higher, the influence on the cable is larger and larger under the action of wind force generated in the external environment, so that higher requirements on the stability of the cable in resisting swinging and shaking are provided, and the suspension bridge plays an important role in safety and stability as a main energy and signal transmission hub. Due to improper material selection or unreasonable structural design, the cable core of the cable produced by domestic manufacturers is often broken, cracked and powered off when the cable is bent or wound, so that port machinery cannot normally run; because the service life cycle of the cable of the common port machine used in the current market is very short, the replacement frequency is higher; the normal operation of port trade and relevant places in China is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the cable core is often broken and cracked to break off the power when the cable is bent or wound, so that the port machinery can not normally operate in the prior art; because the service life cycle of the cable of the common port machine used in the current market is very short, and the replacement frequency is high, the special counterweight cable for the high-flexibility lifting appliance is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a special counter weight cable of high flexibility hoist, includes transposition cable core, central lead bead chain counter weight strip and peripheral space lead bead chain counter weight strip, the mutual butt of transposition cable core and evenly arranging the periphery of central lead bead chain counter weight strip, the mutual space department of transposition cable core between each other fills out and is equipped with peripheral space lead bead chain counter weight strip, every cable core all including a plurality of conductors, the outside of every conductor has all been wrapped up the insulating layer, the conductor in the same cable core is wrapped up by weaving the enhancement layer, transposition cable core, central lead bead chain counter weight strip and peripheral space lead bead chain counter weight strip all include in the isolation layer, the outside package of isolation layer is equipped with the water blocking layer, and the outside of water blocking layer includes and is equipped with the oversheath. The cable conductor is stranded by adopting a plurality of strands of round annealed copper wires (conductor 6) and is extruded and insulated; placing a plurality of (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights) in the central gap of the twisted cable core, filling the peripheral gap of the twisted cable core with (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights), weaving a polyester fiber reinforced layer outside the twisted cable core, and wrapping an isolation layer and a water-blocking layer outside the compound twisted cable core; and then the high-flexibility outer sheath is extruded. The combined mode can solidify the cable structure into a whole from inside to outside of the cable core, and ensures that the conductor, the insulating core, the counterweight reinforcing core and the sheath cannot be mutually stringed, so that the self weight of the cable can be improved, and the cable can be enhanced in anti-shaking performance. The wind resistance of the cable for the port hoisting machinery is greatly improved, the cable can still keep operation under strong wind, and the weighted cable can still keep the bending performance meeting the use requirement. The fiber woven sleeve of the metal chain outer sleeve not only ensures the strength of the metal chain, but also effectively protects the insulated wire core from being damaged.

Preferably, the conductor is a 6-class soft copper conductor, the insulating layer is a high-strength flame-retardant cold-resistant butyronitrile elastomer mixture insulating layer, and the woven reinforcing layer is a polyester fiber yarn woven reinforcing layer.

Preferably, the central lead bead chain counterweight strip is composed of a plurality of lead bead chains wrapped in an aramid fiber yarn woven layer, and a polyester yarn reinforcing core is erected in the center of each lead bead chain.

Preferably, the lead bead chain counterweight strip with the peripheral gap comprises a lead bead chain, an aramid fiber yarn woven layer wraps the outer side of the lead bead chain, and a polyester yarn reinforcing core is erected at the center of the lead bead chain.

The utility model discloses a substantive effect is: the cable conductor is stranded by adopting a plurality of strands of round annealed copper wires (conductor 6) and is extruded and insulated; placing a plurality of (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights) in the central gap of the twisted cable core, filling the peripheral gap of the twisted cable core with (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights), weaving a polyester fiber reinforced layer outside the twisted cable core, and wrapping an isolation layer and a water-blocking layer outside the compound twisted cable core; and then the high-flexibility outer sheath is extruded. The combined mode can solidify the cable structure into a whole from inside to outside of the cable core, and ensures that the conductor, the insulating core, the counterweight reinforcing core and the sheath cannot be mutually stringed, so that the self weight of the cable can be improved, and the cable can be enhanced in anti-shaking performance. The wind resistance of the cable for the port hoisting machinery is greatly improved, the cable can still keep operation under strong wind, and the weighted cable can still keep the bending performance meeting the use requirement. The fiber woven sleeve of the metal chain outer sleeve not only ensures the strength of the metal chain, but also effectively protects the insulated wire core from being damaged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. Conductor, 2, insulating layer, 3, lead bead chain, 4, braided reinforcing layer, 5, isolating layer, 6, water-blocking layer, 7 and outer sheath.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

Example 1:

the utility model provides a special counter weight cable of high flexibility hoist (see attached figure 1), includes transposition cable core, central lead pearl chain counter weight strip and peripheral space lead pearl chain counter weight strip, the mutual butt of transposition cable core and evenly arrange the periphery of central lead pearl chain counter weight strip, the mutual space department of transposition cable core is filled with peripheral space lead pearl chain counter weight strip, every cable core all including a plurality of conductors 1, the outside of every conductor all wraps up insulating layer 2, the conductor in the same cable core wraps up by weaving enhancement layer 4, transposition cable core, central lead pearl chain counter weight strip and peripheral space lead pearl chain counter weight strip all wrap up in isolation layer 5, the outside of isolation layer includes water blocking layer 6, the outside of water blocking layer 7 includes is equipped with the oversheath. The conductor is a 6-class soft copper conductor, the insulating layer is a high-strength flame-retardant cold-resistant butyronitrile elastomer mixture insulating layer, and the woven reinforcing layer is a polyester fiber woven reinforcing layer. The central lead bead chain counterweight strip is composed of a plurality of lead bead chains 3 wrapped in an aramid fiber woven layer, and a polyester yarn reinforcing core is erected in the center of each lead bead chain. The lead bead chain counter weight strip with the peripheral gap comprises a lead bead chain, an aramid fiber yarn weaving layer is wrapped on the outer side of the lead bead chain, and a polyester yarn reinforcing core is erected at the center of the lead bead chain.

The cable conductor is stranded by adopting a plurality of strands of round annealed copper wires (conductor 6) and is extruded and insulated; placing a plurality of (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights) in the central gap of the twisted cable core, filling the peripheral gap of the twisted cable core with (polyester fiber reinforced cores, lead bead chains and aramid fiber yarns to weave counter weights), weaving a polyester fiber reinforced layer outside the twisted cable core, and wrapping an isolation layer and a water-blocking layer outside the compound twisted cable core; and then the high-flexibility outer sheath is extruded. The combined mode can solidify the cable structure into a whole from inside to outside of the cable core, and ensures that the conductor, the insulating core, the counterweight reinforcing core and the sheath cannot be mutually stringed, so that the self weight of the cable can be improved, and the cable can be enhanced in anti-shaking performance. The wind resistance of the cable for the port hoisting machinery is greatly improved, the cable can still keep operation under strong wind, and the weighted cable can still keep the bending performance meeting the use requirement. The fiber woven sleeve of the metal chain outer sleeve not only ensures the strength of the metal chain, but also effectively protects the insulated wire core from being damaged.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (3)

1. The utility model provides a special counter weight cable of high flexible hoist which characterized in that: the cable comprises stranded cable cores, a central lead bead chain counterweight strip and a peripheral gap lead bead chain counterweight strip, wherein the stranded cable cores are mutually abutted and uniformly distributed on the periphery of the central lead bead chain counterweight strip, the gap between the stranded cable cores is filled with the peripheral gap lead bead chain counterweight strip, each cable core comprises a plurality of conductors, the outer side of each conductor is wrapped with an insulating layer, the conductors in the same cable core are wrapped by a braided reinforcing layer, the stranded cable cores, the central lead bead chain counterweight strip and the peripheral gap lead bead chain counterweight strip are all arranged in an isolating layer, the outer side of the isolating layer comprises a water blocking layer, and the outer side of the water blocking layer comprises an outer sheath; the central lead bead chain counterweight strip is composed of a plurality of lead bead chains wrapped in an aramid fiber woven layer, and a polyester yarn reinforcing core is erected in the center of each lead bead chain.

2. The high-flexibility counterweight cable special for lifting appliances according to claim 1, characterized in that: the conductor is a category 6 soft copper conductor.

3. The high-flexibility counterweight cable special for lifting appliances according to claim 1, characterized in that: the lead bead chain counter weight strip with the peripheral gap comprises a lead bead chain, an aramid fiber yarn weaving layer is wrapped on the outer side of the lead bead chain, and a polyester yarn reinforcing core is erected at the center of the lead bead chain.