CN2353019Y - Power cable dysmorphism conductor compact form pinch roller - Google Patents

Abstract

The utility model relates to the technical field of metal rolling, in particular to a power cable conductor compression type pinch roller. The cable pressing groove mainly comprises an upper pressing wheel and a lower pressing wheel, pressing grooves are formed in the two pressing wheels, the structural angle theta of the pressing grooves of the upper pressing wheel is determined according to the structure of a cable and can be any angle, and the pressing grooves of the lower pressing wheel are arc-shaped and have the arc radiusWherein delta is the insulation thickness of the cable insulation core, S is the conductor cross-sectional area of the core, and the width M =2Rsin of the arcWhere Φ = θ -2 arcsin. The special-shaped conductor pressed by the utility model can be twisted into an ideal round cable, and the cable structure has small size and low production cost.

Description

Power cable special-shaped conductor compacting pressing pinch roller

The utility model relates to the rolling technical field of metal, and specifically it is a kind of power cable special-shaped conductor compacting pressing pinch roller.

The existing power cable special-shaped conductor compacting pressing pinch roller that is used for, owing to the moulding hole dimension of its type pinch roller is unreasonable, it is non-circular often making the cable of producing, and construction of cable size is bigger, the production cost height.

The purpose of this utility model is to establish a kind ofly can reduce construction of cable size, reduces the cable production cost, and the special-shaped conductor that pair twist system cable is required presses the type pinch roller of moulding.

The utility model comprises upper pressure wheel, be arranged on upper pressure wheel centre bore and upper pressure wheel indent on the upper pressure wheel, the lower pressure wheel that pushes mutually with upper pressure wheel in the upper pressure wheel bottom, be arranged on lower pressure wheel centre bore and lower pressure wheel indent on the lower pressure wheel, the structure angle of upper pressure wheel indent is determined according to the construction of cable, can be any angle, the lower pressure wheel indent is a circular arc type; The radius of this garden arc is: $R=\frac{360\mathrm{\δ}}{\mathrm{\π\θ}}+\frac{180}{\mathrm{\π\θ}}\sqrt{4{\mathrm{\δ}}^2+\frac{\mathrm{\π\θ}}{90}(S-{\mathrm{\δ}}^2\mathrm{ctg}\frac{\mathrm{\θ}}{2})}.$ Wherein δ is the insulation thickness of cable insulation core, and S is that the cross-sectional area of conductor of core is long-pending; The width M of this garden arc is: $M=2R\sin \frac{\mathrm{\φ}}{2}.$ Wherein $\mathrm{\φ}=\mathrm{\θ}-2\arcsin \frac{\mathrm{\δ}}{R}$ 。

Adopt the power cable of such scheme to lead shape conductor compacting type pinch roller, can make the shape conductor strand of leading of moulding make desirable garden type finished cable, thereby reduce construction of cable size, reduce the cable production cost.

Accompanying drawing has provided embodiment of the present utility model, this figure is an overall structure schematic diagram of the present utility model, and (1) is the upper pressure wheel body among the figure, and (2) are the upper pressure wheel copper sheathing, (3) for pressing down wheel body, (4) be the lower pressure wheel copper sheathing, (5) are the lower pressure wheel indent, and (6) are the lower pressure wheel centre bore, (7) be lower pressure wheel, (8) be the upper pressure wheel centre bore, (9) are upper pressure wheel, and (10) are the upper pressure wheel indent.

In the embodiment that accompanying drawing provides, upper pressure wheel (9) is provided with upper pressure wheel centre bore (8) and upper pressure wheel indent (10), lower pressure wheel (7) be contained in upper pressure wheel (9) bottom and with its extruding, this lower pressure wheel (7) is provided with lower pressure wheel centre bore (6) and lower pressure wheel indent (5).The structure angle of upper pressure wheel indent (10) determines according to the construction of cable, as: second-class core cable is that 180 ° of third-class core cables are 120 °, and fourth class core cable is 90 ° etc.Lower pressure wheel indent (5) is the garden camber, and the radius R of this garden arc is: $R=\frac{360\mathrm{\δ}}{\mathrm{\π\θ}}+\frac{180}{\mathrm{\π\θ}}\sqrt{4{\mathrm{\δ}}^2+\frac{\mathrm{\π\θ}}{90}(S-{\mathrm{\δ}}^2\mathrm{ctg}\frac{\mathrm{\θ}}{2})}$ , be the insulation thickness of insulated wire cores wherein, press GB12706-91 and determine that S is the cross-sectional area of conductor area of core; The width M of this garden arc is: $M=2R\sin \frac{\mathrm{\φ}}{2}.$ Wherein $\mathrm{\φ}=\mathrm{\θ}-2\arcsin \frac{\mathrm{\δ}}{R}$ 。

Claims (1)

1. power cable special-shaped conductor compacting pressing pinch roller, comprise upper pressure wheel (9), be arranged on upper pressure wheel centre bore (8) and upper pressure wheel indent (10) on the upper pressure wheel (9), the lower pressure wheel (7) that pushes mutually with upper pressure wheel (9) in upper pressure wheel (9) bottom, be arranged on lower pressure wheel centre bore (6) and lower pressure wheel indent (5) on the lower pressure wheel (7), the structure angle θ that it is characterized in that upper pressure wheel indent (10), determine according to the construction of cable, can be arbitrarily angled, lower pressure wheel indent (5) is the garden camber, and the radius of this garden arc is: $R=\frac{360\mathrm{\δ}}{\mathrm{\π\θ}}+\frac{180}{\mathrm{\π\θ}}\sqrt{4{\mathrm{\δ}}^2+\frac{\mathrm{\π\θ}}{90}(S-{\mathrm{\δ}}^2\mathrm{ctg}\frac{\mathrm{\θ}}{2})}$ . wherein δ is the insulation thickness of cable insulation core, and S is that the cross-sectional area of conductor of core is long-pending; The width M of this garden arc is: $M=2R\sin \frac{\mathrm{\φ}}{2}$ Wherein $\mathrm{\φ}=\mathrm{\θ}-2\arcsin \frac{\mathrm{\δ}}{R}$ 。