CN216471425U - Driving device of coaxial cable conductor tractor - Google Patents

Abstract

The utility model relates to the technical field of cable production equipment, can weaken interference caused by vibration of a motor, can reduce the traction speed, and has the technical characteristics of simple structure and convenience in use. The driving device comprises a mounting frame, a motor fixed at the top of the mounting frame and with a motor shaft facing downwards, a first belt wheel fixed on a rotating shaft of a driving traction wheel, and an intermediate speed reducing assembly, wherein the intermediate speed reducing assembly comprises an intermediate shaft, a second belt wheel and a third belt wheel fixed on the intermediate shaft, the intermediate shaft is vertically fixed on the side face of the mounting frame through two bearings, the diameter of the second belt wheel is smaller than that of the third belt wheel and that of the first belt wheel, the diameter of the first belt wheel is smaller than that of the driving traction wheel, a fourth belt wheel is fixed on the motor shaft, the diameter of the fourth belt wheel is smaller than that of the third belt wheel, the first belt wheel and the second belt wheel are connected through a first belt, and the third belt wheel and the fourth belt wheel are connected through a second belt.

Description

Driving device of coaxial cable conductor tractor

Technical Field

The utility model relates to the technical field of cable production equipment, in particular to a driving device of a coaxial cable conductor tractor.

Background

In the production process of the coaxial cable, a tractor is required to be used for dragging the oxygen-free copper wire conductor. For example, the oxygen-free copper wire conductor is drawn from the payoff end onto an insulation extruder, or the finished cable is drawn to the payoff end. The conventional tractor is generally that a motor and a reduction gearbox drive a traction wheel, the gear of the reduction gearbox can vibrate at high frequency in the working process, the high-frequency vibration can enable the wire diameter of an oxygen-free copper wire conductor to change slightly and invisible, and the changes can affect the echo performance of a cable.

In order to solve the above problem, the applicant provided a split conductor traction device for coaxial cable in chinese utility model patent ZL 201920621737.3, and a motor mounting bracket was provided to the side of the frame of the traction wheel, and a distance was kept between this motor mounting bracket and the frame, and the motor was vertically fixed up on the motor mounting bracket, and through band pulley group drive initiative traction wheel. The conductor traction device is not provided with a reduction gearbox, the motor is not contacted with the frame of the traction wheel, and the vibration of the motor has little influence on the anaerobic copper wire conductor.

For cost reasons, the motor in such split conductor traction devices is typically a 10-stage motor with a speed of 600 rpm. The diameter of the belt pulley on the driving traction wheel is the same as that of the driving traction wheel and can reach 1 meter. Although the motor and the active traction wheel are in a speed reduction relation, the linear speed of the active traction wheel is still high and can reach 6-7 km/h, the speed reduction device is generally suitable for traction of anaerobic copper wire conductors with the wire diameter of about 1.0mm, for anaerobic copper wire conductors with the larger diameter, such as anaerobic copper wire conductors with the wire diameter of 2.15mm, the linear speed needs to be reduced to 3-4 km/h, otherwise, the echo performance of a cable can be influenced, and if a motor with higher grades is purchased, the equipment cost can be increased. In addition, the diameter of the belt pulley on the existing active traction wheel is too large, so that the cost is high, the installation is inconvenient, the energy consumption in traction is increased, and the improvement is still needed.

Disclosure of Invention

The utility model aims to overcome the defects in the background technology and provides a driving device of a coaxial cable conductor tractor, which can weaken the interference caused by the vibration of a motor and reduce the traction speed and has the technical characteristics of simple structure and convenient use.

The technical purpose of the utility model is realized as follows:

the utility model provides a drive arrangement of coaxial cable conductor tractor, including the mounting bracket, fix at the motor that mounting bracket top and motor shaft are down, fix the epaxial first band pulley of pivot at driving traction wheel, still include middle speed reduction subassembly, this middle speed reduction subassembly includes the jackshaft, and fix epaxial second band pulley and the third band pulley of jackshaft, the jackshaft is vertical to be fixed in the side of mounting bracket through two bearings, the diameter of second band pulley is less than third band pulley and first band pulley, the diameter of first band pulley is less than driving traction wheel, be fixed with the fourth band pulley on the motor shaft, the diameter of fourth band pulley is less than the third band pulley, connect through first belt between first band pulley and the second band pulley, connect through the second belt between third band pulley and the fourth band pulley.

Preferably, the outer surfaces of the first pulley, the second pulley, the third pulley and the fourth pulley are provided with ribs along the circumferential direction for increasing the friction force between the first pulley, the second pulley, the third pulley and the fourth pulley.

Compared with the prior art, the utility model has the following advantages: the intermediate speed reducing assembly is arranged between the motor and the driving traction wheel, so that the linear speed of the driving traction wheel can be effectively reduced, the requirement of the driving traction wheel with a large linear diameter is met, compared with a gear box, the intermediate speed reducing assembly is simple in structure, lower in noise, free of daily maintenance work such as oil seal replacement and the like, the speed reducing ratio can be changed by replacing the second belt wheel and the third belt wheel with different diameters, and the driving traction wheel is convenient to use. The diameter of a first belt wheel on the driving traction wheel is smaller than that of the driving traction wheel, so that the driving traction wheel is convenient to mount.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic structural view of the second pulley.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples, so that the objects, solutions and advantages of the present invention can be more clearly understood by those skilled in the art.

In the following description of the embodiments, it is to be noted that, unless otherwise explicitly specified or limited, specific meanings of the general terms in the following embodiments may be specifically understood by those of ordinary skill in the art.

As shown in fig. 1, the driving apparatus of a coaxial cable conductor tractor provided in this embodiment includes a mounting bracket 11 disposed on a side surface of a tractor frame 3, a motor 10 fixed on a top of the mounting bracket 11 and having a shaft of the motor 10 facing downward, a first pulley 4 fixed on a rotating shaft 2 of a driving traction wheel 1, and an intermediate speed reduction assembly.

The intermediate reduction assembly comprises an intermediate shaft 7, and a second pulley 9 and a third pulley 6 fixed to the intermediate shaft 7. The intermediate shaft 7 is vertically fixed on the side surface of the mounting frame 11 through two bearings 8, the diameter of the second belt wheel 9 is smaller than that of the third belt wheel 6 and the first belt wheel 4, the diameter of the first belt wheel 4 is smaller than that of the driving traction wheel 1, the shaft of the motor 10 is fixedly provided with the fourth belt wheel 13, the diameter of the fourth belt wheel 13 is smaller than that of the third belt wheel 6, the first belt wheel 4 is connected with the second belt wheel 9 through the first belt 5, and the third belt wheel 6 is connected with the fourth belt wheel 13 through the second belt 12.

As shown in fig. 2, the outer surfaces of the first pulley 4, the second pulley 9, the third pulley 6 and the fourth pulley 13 are all provided with ribs 9.1 along the circumferential direction for increasing the friction force with the belt.

In this embodiment, the diameter of the fourth belt pulley 13 is smaller than that of the third belt pulley 6, the motor 10 drives the intermediate shaft 7 to rotate so as to reduce the speed, the angular velocity of the third belt pulley 6 is the same as that of the second belt pulley 9, the diameter of the second belt pulley 9 is smaller than that of the third belt pulley 6, which is equivalent to that the linear velocity of the third belt pulley 6 is reduced, the diameter of the second belt pulley 9 is smaller than that of the third belt pulley 6, and the intermediate shaft 7 drives the rotating shaft 2 to rotate so as to reduce the speed. Finally, the linear speed of the driving traction wheel 1 reaches the requirement.

The above description is only a preferred embodiment of the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The utility model provides a coaxial cable conductor tractor's drive arrangement, includes mounting bracket (11), fixes motor (10) down at mounting bracket (11) top and motor (10) axle, fixes first band pulley (4) on pivot (2) of initiative traction wheel (1), its characterized in that: still include middle speed reduction subassembly, this middle speed reduction subassembly includes jackshaft (7), and fix second band pulley (9) and third band pulley (6) on jackshaft (7), jackshaft (7) are through two bearing (8) vertical fixes the side at mounting bracket (11), the diameter of second band pulley (9) is less than third band pulley (6) and first band pulley (4), the diameter of first band pulley (4) is less than driving traction wheel (1), motor (10) are epaxial to be fixed with fourth band pulley (13), the diameter of fourth band pulley (13) is less than third band pulley (6), connect through first belt (5) between first band pulley (4) and the second band pulley (9), connect through second belt (12) between third band pulley (6) and the fourth band pulley (13).

2. The drive of a coaxial cable conductor tractor of claim 1, wherein: the outer surfaces of the first belt wheel (4), the second belt wheel (9), the third belt wheel (6) and the fourth belt wheel (13) are provided with convex ribs (9.1) along the circumferential direction for increasing the friction force between the belt and the belt.

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