CN201918197U

CN201918197U - High-strength flexible cable for electric hoist of crane

Info

Publication number: CN201918197U
Application number: CN201020686619XU
Authority: CN
Inventors: 陆云春; 李永江
Original assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Current assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-08-03
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses a high-strength flexible cable for an electric hoist of a crane. The high-strength flexible cable comprises a core conductor formed by stranding a plurality of tin plated copper wires, an ethylene propylene rubber insulating layer is arranged outside the core conductor, three insulating core conductors are stranded to form a cable bundle, fillers are arranged among clearances of the insulating core conductors, an inner sheath is extruded outside the cable bundle, a fiber braided layer is arranged outside the inner sheath, an outer sheath is extruded outside the fiber braided layer, self-bearing steel wires are fixed on the outer side of the outer sheath along the length direction of the outer sheath and are steel wire bundles covered with a sheath, and each steel bundle is formed by stranding a plurality of fine steel wires. The problem that the cable serving as a bearing part of the crane is easy to be damaged or even broken due to stretching force and then has short service life is solved by means of fixing the bearing steel wires on the outside of the cable, and the cable can be used for port cranes and ocean engineering.

Description

Loop wheel machine used for electric hoist high strength flexible cable

Technical field

The utility model relates to a kind of cable, particularly a kind of loop wheel machine used for electric hoist high strength flexible cable.

Background technology

Fast development along with China's water transportation industry, the dynamics of investment of port construction is progressively accelerated, riverine, coastal cargo throughput of port is risen progressively year by year, thereby driven harbour cargo handling equipment to scientific, the development of automation aspect is particularly active, emerged in large numbers all kinds of harbours loop wheel machine of many novel high-performances, because the needs of loop wheel machine operation principle, the motor power transmission line then needs frequent lifting in the loop wheel machine, be wound on back and forth on the reel of loop wheel machine, in the prior art, a kind of harbour loop wheel machine cable is arranged, publication number is: CN201256014, comprise the cable core that is made of many rubber-covered heart yearns and a reinforcements, cable core twines the compound strap of single-layer polyester nonwoven successively and twines separator, the bilayer strap that blocks water twines water blocking layer and extrudes the neoprene outer jacket, and reinforcement is through whole cable core central authorities.Its weak point is: cable is subjected to the effect of tensile force, simultaneously through being commonly used to load-bearing, be subjected to the influence of waters, weather, humiture and solar irradiation, make cable aging, impaired, even fracture, useful life is extremely short, brings difficulty and inconvenience to loading and unloading.

The utility model content

The purpose of this utility model is to provide a kind of loop wheel machine used for electric hoist high strength flexible cable, makes that the anti-mechanical pulling force ability of cable is strong, ageing-resistant, corrosion-resistant, long service life.

For solving above technical problem, the utility model provides a kind of loop wheel machine used for electric hoist high strength flexible cable, comprise the some stranded cored wire conductors that form of tinned copper wire, cored wire conductor is provided with ethylene propylene rubber insulated layer outward, three thoroughly do away with the edge cored wire conductor is twisted into bunch of cables, the described gap of respectively insulating between the cored wire conductor is provided with fills out core, described bunch of cables is extruded with inner sheath outward, inner sheath is provided with the fibrage layer outward, described braid is extruded with oversheath outward, the described oversheath length direction in oversheath outer is parallel to be bonded with the self-bearing type steel wire, and described self-bearing type steel wire is the steel tendon that external packets is covered with sheath, and described steel tendon is by some stranded the forming of finer wire.

With respect to prior art, the utility model has been obtained following beneficial effect: the self-bearing type steel wire of fixing side by side at its edge when extruding oversheath, as the vertical weight of bearing electric block that connects, make cable only do the electrical communications effect, and needn't the load of commitment external broach, avoided cable to cause cable bad because of action of pulling stress, even fracture, thereby useful life of cable prolonged; Ethylene-propylene rubber has the high fillibility of low-density, resistance to ag(e)ing, corrosion resistance, and the insulating barrier of ethylene-propylene rubber material also is beneficial to the mechanical strength that improves cable, can be used in harbour loop wheel machine and the ocean engineering.

As improvement of the present utility model, the described core of filling out is the rope made of hemp.Strengthen the resistance to tension of cable, further improved the mechanical strength of cable, thereby prolonged the useful life of cable.

As further improvement of the utility model, described inner sheath material is a neoprene.Neoprene has good heat-resisting, oil resistant, firing resistance, helps prolonging the useful life of cable.

As further improvement of the utility model, described jacket material is an elastomer rubber.The elastomer rubber flexibility is good, is beneficial to the bending of cable, is beneficial to the coiling of cable, makes that cable can be because of undue crooked the damage.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure: 1 steel tendon, 2 oversheaths, 3 braids, 4 cored wire conductors, 5 are filled out core, 6 insulating barriers, 7 inner sheaths, 8 sheaths.

Embodiment

As shown in Figure 1, be loop wheel machine used for electric hoist high strength flexible cable, comprise the some stranded cored wire conductors that form 4 of tinned copper wire, be provided with ethylene propylene rubber insulated layer 6 outside the cored wire conductor 4, three thoroughly do away with the edge cored wire conductor is twisted into bunch of cables, each gap of insulating between the cored wire conductor 4 is provided with the rope made of hemp and fills out core 5, bunch of cables is extruded with inner sheath 7 outward, the inner sheath 7 outer fibrage layers 3 that are provided with, the braid 3 outer oversheaths 2 that are extruded with, the parallel self-bearing type steel wire that is bonded with of described oversheath 2 length directions in oversheath 2 outers, the self-bearing type steel wire is the steel tendon 1 that external packets is covered with sheath 8, described steel tendon 1 is by some stranded the forming of finer wire, and inner sheath 7 materials are neoprene, and oversheath 2 materials are elastomer rubber.

The self-bearing type steel wire of fixing side by side at its edge when extruding oversheath 2, as the vertical weight of bearing electric block that connects, make cable only do the electrical communications effect, and needn't the load of commitment external broach, avoided cable to cause cable bad because of action of pulling stress, even fracture, thereby prolonged useful life of cable; Ethylene-propylene rubber belongs to flexible material, and the insulating barrier 6 of ethylene-propylene rubber material also is beneficial to the bending of cable, improves the pliability of cable; Use the rope made of hemp to do and fill 5, help improving the resistance to tension of cable; The inner sheath 7 that neoprene is made, physical and mechanical properties is good, can prolong the useful life of cable, the oversheath 2 that elastomer rubber is made, flexibility height.

In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.

Claims

1. loop wheel machine used for electric hoist high strength flexible cable, it is characterized in that, comprise the some stranded cored wire conductors that form of tinned copper wire, cored wire conductor is provided with ethylene propylene rubber insulated layer outward, three thoroughly do away with the edge cored wire conductor is twisted into bunch of cables, the described gap of respectively insulating between the cored wire conductor is provided with fills out core, described bunch of cables is extruded with inner sheath outward, inner sheath is provided with the fibrage layer outward, described braid is extruded with oversheath outward, the described oversheath length direction in oversheath outer is parallel to be fixed with the self-bearing type steel wire, and described self-bearing type steel wire is the steel tendon that external packets is covered with sheath, and described steel tendon is by some stranded the forming of finer wire.

2. loop wheel machine used for electric hoist high strength flexible cable according to claim 1 is characterized in that, the described core of filling out is the rope made of hemp.

3. loop wheel machine used for electric hoist high strength flexible cable according to claim 1 and 2 is characterized in that described inner sheath material is a neoprene.

4. loop wheel machine used for electric hoist high strength flexible cable according to claim 1 and 2 is characterized in that described jacket material is an elastomer rubber.