CN219489252U - Automatic constant-tension cable winding and unwinding device for on-line monitoring of gate - Google Patents

Abstract

The utility model discloses a constant tension cable automatic winding and unwinding device for gate online monitoring, which comprises a bracket, wherein one end of the bracket is rotatably connected with a lever through a supporting shaft, one end of the lever is fixedly provided with a weight plate, the other end of the bracket is rotatably provided with a winding drum, two ends of one side of the lever are rotatably provided with pulleys, one end of each pulley is connected with a cable, one end of each cable is wound on the surface of the winding drum, the shaft end of the winding drum is provided with an electric slip ring, the electric slip ring is electrically connected with one end of each cable, the lever and the weight plate are arranged through the bracket, the cable is connected with the winding drum and the pulleys, the problem of uneven tension applied by an automatic rope winder is solved, and the supporting position of the rope winder and the force application position of the cable are separated in the horizontal direction by adopting a lever principle, so that the problem of site installation and site selection are difficult is solved.

Description

Automatic constant-tension cable winding and unwinding device for on-line monitoring of gate

Technical Field

The utility model relates to the field of cable winding and unwinding, in particular to a constant-tension cable automatic winding and unwinding device for on-line monitoring of a gate.

Background

In the running process of the hydraulic steel gate, the parameters such as inclination angle, vibration, stress and the like need to be monitored, and the sensor for monitoring needs to be installed on the gate, supplies power to the gate through a wire and transmits signals.

However, in practice, the cable is required to have a follower function for lifting and lowering the gate, and because the gate is mostly outdoors, the cable is also disturbed by external force under the action of water flow and wind force, and in this case, if an unpowered follower cable scheme similar to an elevator is adopted, the cable is obviously unrealistic, and besides insufficient cable suspension space, the cable is easy to tie or damage under the action of external force on site.

If the automatic rope coiling device with power and locking functions is adopted, the problem that no cable suspension space exists on site can be solved, but the automatic rope coiling device has obvious defects in the aspects of controlling lifting and sensing the tension of a cable, so that damage to the cable or a cable joint caused by mismatching of the tension often occurs in engineering, and engineering safety is affected.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model aims to provide the constant-tension cable automatic winding and unwinding device for the on-line monitoring of the gate, which solves the problems of the start-stop control of an automatic rope coiling device and the uneven tension applied to the cable by the automatic rope coiling device by combining a winding drum with a pulley through a bracket mounting lever and a counterweight sheet, separates the supporting position of the rope coiling device from the force application position of the cable in the horizontal direction by adopting a lever principle, and solves the problem of difficult site installation and site selection.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides an automatic winding and unwinding device of permanent tension cable for gate on-line monitoring, includes the support, the one end of support is connected with the lever through the back shaft rotation, the one end fixed mounting of lever has the counter weight piece, the winding reel is installed in the other end rotation of support, one side both ends of lever all rotate and install the pulley, the one end of pulley is connected with the cable, the one end winding of cable is in the surface of winding reel, electrically conductive sliding ring is installed to the axle head of winding reel, electrically conductive sliding ring passes through the one end of electric power connection in the cable.

Further, a servo motor is arranged at the other end of the winding roll, and the servo motor is fixedly arranged at one side of the support.

Further, the servo motor is connected with an electric box through a circuit, the electric box is fixedly arranged at one end of the support, and the electric box is arranged through the servo motor, so that electric control is facilitated, and operation and use are convenient.

Further, the shaft ends of the supporting shaft, the winding roll and the pulleys are provided with bearings.

Further, sensors are installed on two sides of the support, and the sensors are located on two sides of the lever.

Further, the sensors are four, are symmetrically connected to the surfaces of two sides of the support, are beneficial to supporting connection through the mounting bearings and the sensors, are convenient to detect and control, and are safe and stable.

Compared with the prior art, the utility model has the advantages that:

(1) According to the technical scheme, the lever and the weight stack are installed through the support, the cable is connected with the winding roll and the pulley, the problems of start-stop control of the automatic rope coiling device and uneven pulling force applied to the cable by the automatic rope coiling device are solved, the supporting position of the rope coiling device is separated from the force application position of the cable in the horizontal direction by adopting the lever principle, and the problem of difficulty in site installation and site selection is solved.

(2) The tension of the cable is close to constant, and the cable is greatly protected.

(3) The automatic winding and unwinding device can not cause over-pulling and over-unwinding problems for cables in the operation process.

(4) When the site is disturbed by wind force or water flow, the compensation can be performed through lever angle adjustment, and the motor is not required to be started frequently.

(5) The automatic retraction device gives way to the space right above the cable, and is suitable for being installed in a door slot or a narrow position.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is a schematic structural view of a bracket according to the present utility model;

fig. 5 is a schematic structural view of the winding roll of the present utility model.

The reference numerals in the figures illustrate:

1 support, 11 back shaft, 12 levers, 13 weight plates, 14 winding roll, 15 pulleys, 16 cables, 17 conductive slip rings, 18 servo motors, 19 electric boxes, 2 bearings and 21 sensors.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Referring to fig. 1-5, the automatic constant tension cable winding and unwinding device for on-line monitoring of a gate comprises a support 1, wherein one end of the support 1 is rotatably connected with a lever 12 through a support shaft 11, one end of the lever 12 is fixedly provided with a weight plate 13, the other end of the support 1 is rotatably provided with a winding drum 14, two ends of one side of the lever 12 are rotatably provided with pulleys 15, one end of each pulley 15 is connected with a cable 16, one end of each cable 16 is wound on the surface of the winding drum 14, the shaft end of the winding drum 14 is provided with a conductive slip ring 17, and the conductive slip ring 17 is connected with one end of each cable 16 through electric power.

The servo motor 18 is installed to the other end of take-up reel 14, servo motor 18 fixed mounting is in one side of support 1, servo motor 18 has electric box 19 through circuit connection, electric box 19 fixed mounting is in one end of support 1, electric box is installed through servo motor, do benefit to electric control, convenient operation uses, bearing 2 is all installed to the axle head of back shaft 11, take-up reel 14 and pulley 15, sensor 21 is installed to the both sides of support 1, sensor 21 is located the both sides of lever 12, sensor 21 has four, and symmetrical connection is in the both sides surface of support 1, through installing bearing and sensor, do benefit to the support connection, convenient detection control, safety and stability.

In use, the bracket 1 is mounted on a gate slot or hoist frame by means of anchor bolts, electrically connected by means of the electrical box 19, and the weight stack 13 is configured as desired.

The cable 16 passes through the pulley 15, passes through the hole of the lever 12 and is wound on the winding roll 14, and the connector is electrically connected with the rotating part of the conductive slip ring 17 arranged on the same shaft through the hole of the winding roll; the sensor 21, the servo motor 18 and the fixed part of the electrical slip ring 17 are electrically connected to the control part via the electrical box 19, and the appropriate weight plate is mounted to the recess of the lever 12.

When the cable 16 is loosened, the pulley end of the lever 12 is tilted up due to the counterweight function, when the cable 16 is tilted up to a certain angle, the position signal of the lever 12 is captured by the sensor 21, at this time, the controller controls the servo motor 18 to perform the winding operation with a fixed rotation angle, the lever 12 is gradually turned from tilted up to be close to the horizontal during the winding process, the winding period is ended, and when the cable 16 is continuously loosened, the above-mentioned actions are repeated.

When the cable 16 is tensioned, the pulley end of the lever 12 is sunk against the counterweight effect, when the cable is sunk to a certain angle, the position signal of the lever 12 is captured by the sensor, at the moment, the controller controls the servo motor 18 to carry out the paying-off operation of reverse fixed rotation angle, during the paying-off process, the lever 12 is gradually changed from sunk to nearly horizontal, the paying-off period is ended, and when the cable is continuously tensioned, the above-mentioned actions are repeated.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a gate on-line monitoring is with automatic winding and unwinding devices of constant tension cable, includes support (1), its characterized in that: one end of support (1) is connected with lever (12) through back shaft (11) rotation, the one end fixed mounting of lever (12) has weight stack (13), take-up reel (14) are installed in the other end rotation of support (1), pulley (15) are all installed in rotation of one side both ends of lever (12), the one end of pulley (15) is connected with cable (16), the one end winding of cable (16) is in the surface of take-up reel (14), electrically conductive sliding ring (17) are installed at the axle head of take-up reel (14), electrically conductive sliding ring (17) are connected in the one end of cable (16) through electric power.

2. The constant tension cable automatic retraction device for on-line monitoring of a gate according to claim 1, wherein: the other end of the winding roll (14) is provided with a servo motor (18), and the servo motor (18) is fixedly arranged on one side of the bracket (1).

3. The constant tension cable automatic winding and unwinding device for on-line monitoring of a gate according to claim 2, wherein: the servo motor (18) is connected with an electric box (19) through a circuit, and the electric box (19) is fixedly arranged at one end of the bracket (1).

4. The constant tension cable automatic retraction device for on-line monitoring of a gate according to claim 1, wherein: the shaft ends of the supporting shaft (11), the winding roll (14) and the pulley (15) are respectively provided with a bearing (2).

5. The constant tension cable automatic retraction device for on-line monitoring of a gate according to claim 1, wherein: the two sides of the bracket (1) are provided with sensors (21), and the sensors (21) are positioned on the two sides of the lever (12).

6. The constant tension cable automatic retraction device for on-line monitoring of a gate according to claim 5, wherein: the number of the sensors (21) is four, and the sensors are symmetrically connected to the two side surfaces of the bracket (1).