CN202550458U - Electric wire unreeling frame - Google Patents

Abstract

An electric pay-off stand, which belongs to the technical field of electric wires and cables, and its technical proposal is: the composition of the pay-off stand includes a chassis, a cable shaft, a three-phase asynchronous motor, a three-phase torque motor voltage regulation module and a speed regulation potentiometer. The cable shaft is rotatably connected to the base frame through bearings, the three-phase asynchronous motor is fixed on the base frame, and its output shaft drives the cable shaft through a transmission device, and the A1, BI, and C1 terminals of the three-phase torque motor voltage regulation module are connected to three Phase power supply, A2, B2, C2 terminals are connected to the three-phase asynchronous motor, the 3 pins and 5 pins of the control plug are respectively connected to the two ends of the speed regulating potentiometer, and the 4 pins are connected to the sliding end of the speed regulating potentiometer. The utility model utilizes a three-phase asynchronous motor to drive a cable reel mounted on a cable shaft to rotate, thereby unfolding the tightly wound cable, greatly reducing the labor intensity of construction personnel, improving the efficiency of setting out work, and reducing the cost of line construction. The pay-off rack is especially suitable for laying out heavy cables.

Description

An electric wire rack

technical field

The utility model relates to a pay-off rack used for laying out cables during line construction, which belongs to the technical field of electric wires and cables.

Background technique

At present, the pay-off racks used in line construction are generally manually operated by line construction personnel. It includes an underframe and a cable shaft that is rotatably connected to the underframe. Pull the cable head to unwind the tightly wound cable. This kind of pay-off frame is only suitable for the case where the cable reel is light, and when the cable reel is heavy, it is more laborious to operate, especially when the cable shaft of the pay-off frame is corroded due to rain, it often needs to be used during construction. Multiple people work together to release the line, and the labor intensity of the operators is very high, which greatly reduces the work efficiency and increases the construction cost.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art and provide an electric pay-off stand to improve the work efficiency of the pay-off and reduce the construction cost.

The purpose of this utility model is realized with following technical scheme:

An electric pay-off stand, comprising a base frame, a cable shaft, a three-phase asynchronous motor, a three-phase torque motor voltage regulating module and a speed regulating potentiometer, the cable shaft is rotatably connected to the base frame through a bearing, and the three-phase The asynchronous motor is fixed on the chassis, and its output shaft drives the cable shaft through the transmission device. A1, BI, and C1 of the three-phase torque motor voltage regulation module are connected to the three-phase power supply, and A2, B2, and C2 are connected to the three-phase asynchronous motor. , the 3 pins and 5 pins of the control plug are respectively connected to both ends of the speed regulating potentiometer, and the 4 pins are connected to the sliding end of the speed regulating potentiometer.

In the above-mentioned electric pay-off stand, the transmission device includes a belt and two pulleys respectively installed on the cable shaft and the output shaft of the three-phase asynchronous motor, and the two pulleys are connected by the belt.

The utility model utilizes a three-phase asynchronous motor to drive the rotation of the cable reel fitted on the cable shaft, thereby unfolding the tightly wound cable, greatly reducing the labor intensity of construction personnel, improving the efficiency of setting out work, and reducing the construction cost of the line. The pay-off rack is especially suitable for laying out heavy cables.

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

Description of drawings

Fig. 1 is a structural representation of the utility model;

Figure 2 is an electrical schematic diagram.

Detailed ways

The labels in the figure are: 1, underframe; 2, cable reel; 3, cable shaft; 4, pulley; 5, belt; M, three-phase asynchronous motor; TY, three-phase torque motor voltage regulation module, W, speed regulation potentiometer.

Referring to Fig. 1, Fig. 2, the utility model is made up of chassis 1, cable shaft 3, belt pulley 4, belt 5, three-phase asynchronous motor M, three-phase torque motor voltage regulating module TY, speed regulating potentiometer W.

The model of the three-phase asynchronous motor M is Y112-2, and the Y series three-phase asynchronous motor is a basic series of low-voltage three-phase squirrel-cage asynchronous motors for general use. This series can meet the needs of general use at home and abroad, and has the advantages of high efficiency, energy saving, small vibration, low noise, long life, high reliability, convenient maintenance, and large starting torque. The installation size and power level are in full compliance with IEC standards. It adopts Class B insulation, the enclosure protection grade is IP44, and the cooling method is IC411. The rated voltage of the Y series motor is 380V, the rated frequency is 50Hz, the "Y" connection is used for 3kW and below, and the "Δ" connection is used for 4kW and above.

The three-phase torque motor voltage regulation module TY is produced by Shenzhen Aoteke Electronic Technology Co., Ltd., the model is CHH33-25A-III. It uses silicon controlled rectifiers to adjust the motor steplessly, with stable voltage regulation, good starting performance, and easy to use. It has the advantages of long life and overcomes the shortcomings of difficult maintenance of traditional equipment. It is a new type of electronic voltage regulating controller.

The three-phase asynchronous motor M and the cable shaft 3 are driven by pulleys, which can prevent the motor from burning due to overload.

Claims (2)

1. electronic pay off rack; It is characterized in that; It comprises underframe (1), cable axle (3), threephase asynchronous (M), three-phase torque motor voltage regulating module (TY) and speed-regulating potentiometer (W); Said cable axle (3) is rotationally connected through bearing and underframe (1), and said threephase asynchronous (M) is fixed on the underframe (1), and its output shaft is through actuator drives cable axle (3); The A1 of said three-phase torque motor voltage regulating module (TY), BI, C1 termination three phase mains; A2, B2, C2 termination threephase asynchronous (M), 3 pin and 5 pin of its control plug are connected to speed-regulating potentiometer (W) two ends respectively, and 4 pin connect the sliding end of speed-regulating potentiometer (W).

2. according to the said electronic pay off rack of claim 1; It is characterized in that; Said transmission device comprises belt (5) and two belt pulleys (4) that are installed in respectively on cable axle (3) and threephase asynchronous (M) output shaft, and two belt pulleys (4) connect through belt (5).

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