CN210029617U - Cable winch - Google Patents

Abstract

The utility model discloses a cable winch, which comprises a base, a bracket arranged on the base, a winding drum and a control box, wherein a fixed cylinder is arranged on the bracket, the winding drum is sleeved on the fixed cylinder, the winding drum is rotationally connected with the fixed cylinder, a motor and a speed reducer are arranged in the fixed cylinder, an input shaft of the speed reducer is connected with an output shaft of the motor, and the output shaft of the speed reducer extends out of the end surface of the fixed cylinder; a gear is fixed on an output shaft of the speed reducer, a gear ring is arranged at one end, close to the gear, of the inner side of the winding drum, and the gear is meshed with the gear ring. The utility model discloses in, motor and reduction gear are installed in fixed drum, can avoid motor and reduction gear directly to expose in adverse circumstances, have played good guard action to motor and reduction gear, have effectively reduced the fault rate of cable winch in the operation process for direct current ice-melt work can go on smoothly.

Description

Cable winch

Technical Field

The utility model relates to a winch, in particular to cable winch.

Background

The direct-current ice melting work is a method which is developed at present and is used for effectively eliminating the ice coating of the line and preventing the line pole tower from falling down in winter under the weather conditions of low temperature, rain and snow. At present, when a direct-current ice melting device is used for ice melting operation, a cable is used for short-circuiting a wire section needing ice melting, and an ice layer covering the wire is removed by using the heat effect of current. In operation, the cable is released and retracted using the cable winch. The cable winch that uses at present utilizes the motor drive capstan winch to rotate usually, but because traditional cable winch motor and drive mechanism expose outside usually, and carry out direct current ice-melt during operation, ambient environment ambient temperature is very low, still accompanies rain and snow weather usually, and operational environment is abominable, makes motor and drive mechanism that expose outside break down easily, leads to the unable operation of cable winch, influences the job schedule.

Disclosure of Invention

The utility model aims at solving in direct current ice-melt work, traditional cable winch is because motor and drive mechanism expose and lead to cable winch to break down easily under the adverse circumstances of low temperature and lead to cable winch unable operation outside, influence the problem of job schedule, provide a cable winch, can effectively solve above-mentioned problem.

The utility model aims at realizing through the following technical scheme: a cable winch comprises a base, a support arranged on the base, a winding drum and a control box, wherein a fixed cylinder is arranged on the support, the winding drum is sleeved on the fixed cylinder, the winding drum is rotatably connected with the fixed cylinder, a motor and a speed reducer are arranged in the fixed cylinder, an input shaft of the speed reducer is connected with an output shaft of the motor, and an output shaft of the speed reducer extends out of the end face of the fixed cylinder; a gear is fixed on an output shaft of the speed reducer, a gear ring is arranged at one end, close to the gear, of the inner side of the winding drum, and the gear is meshed with the gear ring.

The utility model discloses in, fixed drum rotates as fixed axle support reel on the one hand, and on the other hand, the inside space of fixed drum is used for installing motor and reduction gear. The motor is used as a power source and outputs power. The speed reducer is used for reducing the rotating speed of the motor and increasing the output torque. The output power of the motor is transmitted to the winding drum through the speed reducer, the gear and the gear ring in sequence, and the winding drum rotates. The motor and the speed reducer are arranged in the fixed cylinder, so that the motor and the speed reducer can be prevented from being directly exposed in a severe environment, the motor and the speed reducer can operate in a stable environment, the motor and the speed reducer are well protected, the failure rate of the cable winch in the operation process is effectively reduced, and the direct-current ice melting work can be smoothly carried out. The control box is used for controlling the operation of the motor. The utility model discloses a set up motor and reduction gear in fixed drum, overall structure is compact, has reduced the space that occupies.

Preferably, the two ends of the winding drum are provided with end plates.

Preferably, a bearing is provided between an inner circumferential surface of the drum and an outer circumferential surface of the fixed cylinder. The bearing can effectively reduce the friction between the winding drum and the fixed cylinder when the winding drum rotates, and reduce the resistance of the winding drum when the winding drum rotates.

Preferably, the base is provided with a mounting hole. The mounting hole can be conveniently used for mounting the base on an automobile or other carriers, so that the cable winch can quickly reach a working place under the transportation of the carriers.

Preferably, a sudden stop mechanism capable of rapidly stopping the rotation of the winding drum is further arranged between the fixed cylinder and the winding drum. The emergency stop mechanism can enable the winch to stop rotating quickly in emergency, and accidents are avoided.

Preferably, the emergency stop mechanism comprises an electromagnet, an armature and a locking rod, the electromagnet is annular and is arranged on the inner annular surface of the fixed cylinder, the armature is opposite to the electromagnet, the electromagnet is electrically connected with the control box, and a spring is arranged between the armature and the electromagnet; one end of the locking rod is fixedly connected with the armature, the other end of the locking rod penetrates through the electromagnet to extend to the outside of the fixed cylinder and face the inner annular surface of the winding drum, and a plurality of locking grooves corresponding to the locking rod are formed in the inner annular surface of the winding drum. The working principle of the sudden stop mechanism is as follows: when the winding drum normally rotates, the electromagnet is not electrified and does not have magnetism, the armature is positioned at the position of the principle electromagnet under the action of the elastic force of the spring, the front end of the locking rod is separated from the locking groove, and the winding drum can freely rotate; when emergency needs to be stopped suddenly, the electromagnet is electrified by pressing the corresponding sudden stop button on the control box, the armature moves to a position close to the electromagnet under the attraction of the electromagnet, the locking rod extends into the locking groove under the driving of the armature, at the moment, the winding drum and the fixed cylinder are locked, and the winding drum stops rotating quickly. The emergency stop mechanism is simple and reliable in structure, can quickly stop the rotation of the winding drum under emergency, and guarantees the safety of construction.

The utility model has the advantages that: the utility model discloses in, motor and reduction gear are installed in fixed drum, can avoid motor and reduction gear directly to expose in adverse circumstances for motor and reduction gear can move under a stable environment, have played good guard action to motor and reduction gear, have effectively reduced the fault rate of cable winch at the operation in-process, make direct current ice-melt work can go on smoothly.

Drawings

Fig. 1 is an axonometric view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a sectional view taken along a-a in fig. 2.

Fig. 4 is an enlarged view of a portion a of fig. 3.

Fig. 5 is an enlarged view of a portion b in fig. 3.

In the figure: 1. the device comprises a base, 2, mounting holes, 3, a support, 4, a control box, 5, a fixed cylinder, 6, a winding drum, 7, an end plate, 8, a gear ring, 9, a gear, 10, a motor, 11, a speed reducer, 12, an isolation layer, 13, a bearing, 14, an electric heating wire groove, 15, an electric heating wire, 16, a cushion block, 17, an electromagnet, 18, a spring, 19, an armature, 20, a locking rod, 21 and a locking groove.

Detailed Description

The invention will be further described with reference to the following detailed description and accompanying drawings.

Example (b): as shown in fig. 1 to 5, the cable winch comprises a base 1, a winding drum 6 and a control box 4. The base 1 is a rectangular plate-shaped structure. The periphery of the base 1 is provided with a circular mounting hole. The base 1 is provided with a bracket 3. The support 3 comprises two support plates symmetrically arranged at two sides of the base 1. The supporting plate is triangular. The control box 4 is arranged on the side surface of the supporting plate. The bracket 3 is provided with a fixed cylinder 5. The fixed cylinder 5 is cylindrical in shape. The fixed cylinder 5 is horizontally disposed. Two ends of the fixed cylinder 5 are fixedly connected with the supporting plate. The winding drum 6 is sleeved on the fixed cylinder 5. The winding drum 6 is rotatably connected with the fixed cylinder 5. A bearing 13 is provided between the inner circumferential surface of the winding drum 6 and the outer circumferential surface of the fixed cylinder 5. The bearings 13 are provided in total of two. Bearings 13 are provided on both sides of the drum 6, respectively. The two ends of the drum 6 are provided with end plates 7, respectively. The end plate 7 is circular.

A driving device for driving the winding drum 6 to rotate is arranged in the fixed cylinder 5. A transmission mechanism is arranged between the driving device and the winding drum 6. The driving means comprise a motor 10 and a reducer 11 arranged inside the fixed cylinder 5. The motor 10 is a servo motor. The motor 10 is electrically connected to the control box 4. An output shaft of the motor 10 is connected to an input shaft of the reducer 11. The end face of the fixed cylinder 5 is provided with a through hole. The through hole corresponds to the output shaft of the reducer 11. The output shaft of the reducer 11 extends through the through hole out of the end face of the fixed cylinder 5. The transmission comprises a gear wheel 9 and a ring gear 8. The gear 9 is fixed to an output shaft of the reducer 11. A gear ring 8 is fixed to the inside of the drum 6 near one end of the gear 9. The ring gear 8 is arranged coaxially with the drum 6. The gear 9 meshes with the ring gear 8. The control box 4 is provided with a switch button, a forward rotation button, and a reverse rotation button for controlling the motor 10. The motor is used as a power source 10 to output power. The decelerator 11 serves to decrease the rotation speed of the motor 10 and increase the output torque. The output power of the motor 10 is transmitted to the winding drum 6 through the reducer 11, the gear 9 and the gear ring 8 in sequence, and the winding drum 6 is rotated.

And an emergency stop mechanism which can quickly stop the rotation of the winding drum 6 is also arranged between the fixed cylinder 5 and the winding drum 6. The emergency stop mechanism comprises an electromagnet 17, an armature 19 and a locking rod 20. The electromagnet 17 is ring-shaped. The electromagnet 17 is arranged on the inner annular surface of the fixed cylinder 5. The electromagnet 17 is circular. The bottom of the electromagnet 17 is fixed on the inner ring surface of the fixed cylinder 5 through a cushion block 16. The pad 16 is circular. The armature 19 is of cylindrical construction. The armature 19 faces the electromagnet 17. The electromagnet 17 is electrically connected to the control box 4. A spring 18 is arranged between the armature 19 and the electromagnet 17. The spring 18 is fixedly connected at its two ends to the armature 19 and the electromagnet 17, respectively. The fixed cylinder 5 is provided with a circular hole. The circular hole is opposite to the center of the electromagnet 17. The locking bar 20 is a circular rod-like structure. One end of the locking rod 20 is fixedly connected with the armature 19, and the other end of the locking rod passes through the electromagnet 17 and the round hole and extends out of the fixed cylinder 5. The end of the locking bar 20 extending outside the fixed cylinder 5 faces the inner circumferential surface of the drum 6. The inner ring surface of the winding drum 6 is provided with a plurality of locking grooves 21 corresponding to the locking rods 20. The locking groove 21 is circular in cross section. The control box 4 is provided with an emergency stop button for controlling the operation of the emergency stop mechanism. The working principle of the emergency stop mechanism is as follows: when the winding drum normally rotates, the electromagnet is not electrified and does not have magnetism, the armature is positioned at the position of the principle electromagnet under the action of the elastic force of the spring, the front end of the locking rod is separated from the locking groove, and the winding drum can freely rotate; when emergency needs to be stopped suddenly, the electromagnet is electrified by pressing the corresponding sudden stop button on the control box, the armature moves to a position close to the electromagnet under the attraction of the electromagnet, the locking rod extends into the locking groove under the driving of the armature, at the moment, the winding drum and the fixed cylinder are locked, and the winding drum stops rotating quickly.

The winding drum 6 is provided with a heating device. The heating means comprises a wire groove 14 provided on the outer circumferential surface of the drum. The heater slot 14 is spiral in shape. The heating wire 15 is embedded in the heating wire groove 14. The heating wire 15 is electrically connected to the control box 4. The outer circumferential surface of the winding drum 6 is wrapped with an isolation layer 12. The barrier layer 12 is made of aluminum. The control box 4 is provided with a heating button for controlling the operation of the heating wire 15.

The utility model discloses in, drive arrangement passes through drive mechanism and links to each other with the reel, and the reel rotates under drive arrangement's drive. The fixed cylinder on the one hand supports the drum in rotation as a fixed shaft and, on the other hand, the space inside the fixed cylinder is used for mounting the drive means. Through installing drive arrangement in fixed drum, can avoid drive arrangement directly to expose in adverse circumstances for drive arrangement can move under a stable environment, has played good guard action to drive arrangement, has effectively reduced the fault rate of drive arrangement in the operation, makes direct current ice-melt work go on smoothly. The utility model discloses a set up drive arrangement in fixed drum, overall structure is compact, has reduced the space that occupies. The emergency stop mechanism can enable the winch to stop rotating quickly in emergency, and accidents are avoided. The control box is used for controlling the operation of the driving device and the emergency stop device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a cable winch, includes base (1), sets up support (3), reel (6), control box (4) on base (1), its characterized in that: a fixed cylinder (5) is arranged on the support (3), the winding drum (6) is sleeved on the fixed cylinder (5), the winding drum (6) is rotatably connected with the fixed cylinder (5), a motor (10) and a speed reducer (11) are arranged in the fixed cylinder (5), an input shaft of the speed reducer (11) is connected with an output shaft of the motor (10), and an output shaft of the speed reducer (11) extends out of the end face of the fixed cylinder (5); a gear (9) is fixed on an output shaft of the speed reducer (11), a gear ring (8) is arranged at one end, close to the gear (9), of the inner side of the winding drum (6), and the gear (9) is meshed with the gear ring (8).

2. A cable winch according to claim 1, characterized in that the drum (6) is provided with end plates (7) at both ends.

3. A cable winch according to claim 1, characterized in that a bearing (13) is arranged between the inner circumferential surface of the drum (6) and the outer circumferential surface of the stationary drum (5).

4. The cable winch according to claim 1, characterized in that the base (1) is provided with mounting holes (2).

5. The cable winch according to claim 1 or 2 or 3 or 4, characterized in that a quick stop mechanism is provided between the fixed cylinder (5) and the drum (6) for quickly stopping the rotation of the drum (6).

6. The cable winch according to claim 5, characterized in that the emergency stop mechanism comprises an electromagnet (17), an armature (19) and a locking rod (20), wherein the electromagnet (17) is annular, the electromagnet (17) is arranged on the inner annular surface of the fixed cylinder (5), the armature (19) is opposite to the electromagnet (17), the electromagnet (17) is electrically connected with the control box (4), and a spring (18) is arranged between the armature (19) and the electromagnet (17); one end of the locking rod (20) is fixedly connected with the armature (19), the other end of the locking rod penetrates through the electromagnet (17) to extend to the outside of the fixed cylinder (5) and face the inner annular surface of the winding drum (6), and a plurality of locking grooves (21) corresponding to the locking rod (20) are formed in the inner annular surface of the winding drum (6).

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