CN201393010Y - Cable traction apparatus equipped with low-angle bevel wheel - Google Patents

Abstract

The utility model relates to cable traction apparatus equipped with a low-angle bevel wheel, and solves the problems of inclination towards interwinding, wire pressing, bowstringing and wire breaking, and low production efficiency in the prior cable traction apparatus. The apparatus comprises a gearbox, a reinforcing rod, a left traction wheel, two gearwheels, a base, a right traction wheel and a pinion, wherein, the reinforcing rod is positioned at an axial end of the left and the right traction wheels 12, the two gearwheels are arranged correspondingly at the other axial end of the left and the right traction wheels respectively, the pinion is positioned in a meshed manner between the two gearwheels, and both the left and the right traction wheels fall in the category of grooved wheel. The utility model is characterized in that the pinion adopts the low-angle bevel wheel, with a helical angle a ranging from 1 to 2 degrees, and the included angle a between the axial directions of the two gearwheels ranges from 2 to 4 degrees. The utility model can independently wind cables in a spiral manner, thereby reducing friction between the cables, improving product quality, reducing wire take-up tension, increasing tractive force, and boosting production efficiency.

Description

Is furnished with the helical gear cable draw-gear of low-angle

Technical field

The utility model relates to a kind of electrical equipment, specifically the cable draw-gear.

Background technology

At present, common cable pulling device adopts wheeled pair of mode of traction that power is driven small Spur gear by output shaft of gear-box, drives two bull gears by small Spur gear, rotates thereby drive two traction sheave.Obvious this structure is when the traction electric wire, can not transmit voluntarily with helical form, and traction will be adjusted the normal traction of position realization by bus cable device, when actual shipment, cable in distraction procedure easily mutually winding, line ball, hang, break, reduced production efficiency, the quality of cable can not guarantee.

Summary of the invention

For solve that existing cable draw-gear exists easily mutually winding, line ball, hang, break, the problem that production efficiency is low, the utility model provides a kind of helical gear cable draw-gear of low-angle of being furnished with.

The technical solution that realizes above-mentioned purpose is as follows:

Be furnished with the helical gear cable draw-gear of low-angle and comprise gearbox 1, bracing piece 3, left traction wheel 4, two gear wheels 5, base 6, right traction wheel 12 and pinions 15; Bracing piece 3 is positioned at left traction wheel 4 and right traction wheel 12 axial ends, and two gear wheels 5 correspondence respectively are located at the left traction wheel 4 and the right traction wheel 12 axial other ends, and pinion 15 engagements are between two gear wheels 5, and left traction wheel 4 and right traction wheel 12 are sheave;

Described pinion 15 is the low-angle helical gear, and its helical angle is 1 °＜α＜2 °;

The angle of described two gear wheels 5 between axially is 2 °＜α＜4 °.

Useful technique effect of the present utility model is embodied in following several aspect:

1, the utility model can be realized twining cable voluntarily in a spiral manner, and the friction that has reduced cable has improved product quality, has eliminated former electric wire winding, line ball, the phenomenon of hanging, breaking mutually.

2, this cable draw-gear has reduced takeup tension when traction, has increased tractive effort, has improved production efficiency.

3, the utility model is reasonable in design, and is simple in structure, do not need other auxiliary equipment (as bus cable device), and (as the helical gear processing of low-angle) with high content of technology, small investment, effect is obvious.

Description of drawings

Fig. 1 is the utility model structural representation,

Fig. 2 is the vertical view of Fig. 1,

Fig. 3 is the A-A cutaway view of Fig. 1,

Fig. 4 is the B-B cutaway view of Fig. 1,

Fig. 5 is that the K of Fig. 1 is to view;

Part sequence number is described as follows among Fig. 1-5: gearbox 1, melt pit lid 2, bracing piece 3, left traction wheel 4, two gear wheels 5, end cap 6, axle 7, spacer pin 8, base 9, spacer 10, spacer 11, right traction wheel 12, gland 13, axle bed 14, low-angle helical gear 15, strand drilling bolt 16, gland 17, axle bed 18, axle bed 19, axle bed 20.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, be furnished with the helical gear cable draw-gear of low-angle and comprise gearbox 1, melt pit lid 2, bracing piece 3, left traction wheel 4, two gear wheels 5, base 6, right traction wheel 12 and pinions 15; Bracing piece 3 is positioned at left traction wheel 4 and right traction wheel 12 axial ends, and two gear wheels 5 correspondence respectively are located at the left traction wheel 4 and the right traction wheel 12 axial other ends, and pinion 15 engagements are between two gear wheels 5, and left traction wheel 4 and right traction wheel 12 are sheave.

When left traction wheel 4 and right traction wheel 12 diameters were 5000 millimeters, the distance on the traction wheel between each groove center was the L=260 millimeter, low-angle helical gear α=2 °, and two gear wheel angles are 4 °.

When left traction wheel 4 and right traction wheel 12 diameters were 2500 millimeters, the distance on the traction wheel between each groove center was the L=100 millimeter, low-angle helical gear α=1 ° 30 ', and two gear wheel angles are 3 °.

When left traction wheel 4 and right traction wheel 12 diameters were 1600 millimeters, the distance on the traction wheel between each groove center was the L=60 millimeter, low-angle helical gear α=1 ° 2 ' 30 ", two gear wheel angles be 2 α=2 ° 5 '.

Gearbox 1 output shaft assembling low-angle helical gear 15 and two gear wheels 5 mesh at an angle alpha respectively, make the wire casing on left traction wheel 4 and the right traction wheel 12 produce angle 2 α mutually, be that the left traction wheel 4 of corresponding installation on the base 6 and right traction wheel 12 angle between axially also is angle [alpha], guarantee two gear wheel angles be 2 ° 5 '.This angle 2 αs of a left side traction wheel 4 and right traction wheel 12 between axially just in time allow electric wire directly be wound into a groove center suitable for reading (angle of 2 α is determined in this position) of second sheave from a groove center suitable for reading of first sheave, electric wire enters the center of the second road groove end opening of first sheave from a groove end opening center of the second road sheave, electric wire initiatively twines traction in a spiral manner by that analogy, change mode of traction in the past fully, reduced the problem that electric wire produces because of mode of traction.

Claims (1)

1, is furnished with the helical gear cable draw-gear of low-angle, comprises gearbox (1), bracing piece (3), left traction wheel (4), two gear wheels (5), base (6), right traction wheel (12) and pinion (15); Bracing piece (3) is positioned at left traction wheel (4) and the axial end of right traction wheel (12), two gear wheels (5) correspondence respectively are located at the left traction wheel (4) and the axial other end of right traction wheel (12), pinion (15) engagement is positioned between two gear wheels (5), left side traction wheel (4) and right traction wheel (12) are sheave, it is characterized in that:

Described pinion (15) is the low-angle helical gear, and its helical angle is 1 °＜α＜2 °;

The angle of described two gear wheels (5) between axially is 2 °＜α＜4 °.

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