CN216377293U

CN216377293U - Lifting mechanism of electric hoist of crane

Info

Publication number: CN216377293U
Application number: CN202220646375.5U
Authority: CN
Inventors: 闫亮; 乔丙海; 郭世超; 谢灵辉
Original assignee: Arfa Cranes Co ltd
Current assignee: Arfa Cranes Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-04-26
Anticipated expiration: 2032-03-24

Abstract

A lifting mechanism of an electric hoist of a crane comprises a winding drum, wherein a supporting device is arranged at the left end of the winding drum and assembled on a hoist bracket, a power mechanism is arranged at the right end of the winding drum and comprises a flange plate, the right end of the flange plate is detachably and fixedly connected with the winding drum, a horizontally arranged sleeve is fixed in the flange plate, and an inner gear ring is arranged in the sleeve; the right side of ring flange is equipped with the motor supporting seat, the lower extreme and the calabash support of motor supporting seat are fixed, the left end and the ring flange assembly of motor supporting seat, the right-hand member of motor supporting seat is equipped with the gear motor that the level set up, fixed connection can be dismantled with the motor supporting seat to gear motor's left end, gear motor's power output shaft extends to in the ring flange, and be fixed with the drive wheel on gear motor's the power output shaft, the outer ring gear that corresponds the setting with the sleeve is seted up in the outside of drive wheel, the drive wheel cover is established in the sleeve. The utility model has simple structure and convenient use.

Description

Lifting mechanism of electric hoist of crane

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a lifting mechanism of an electric hoist of a crane.

Background

The electric hoist is a special hoisting device, and is installed on overhead traveling cranes and gantry cranes, and the electric hoist has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, storage, docks and the like. However, the existing lifting mechanism is mostly composed of a motor, a speed reducer, a brake, a coupler and a winding drum, and is unreasonable in design, not compact in structure, large in design size, relatively troublesome in production and assembly, and inconvenient to disassemble, assemble and maintain. Therefore, the existing electric hoist lifting mechanism has unreasonable structure and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lifting mechanism of an electric hoist of a crane, which aims to solve the technical problem that the structure of the lifting mechanism of the existing electric hoist is unreasonable, and comprises a horizontally arranged winding drum which is a duplex winding drum and is provided with a steel wire rope groove, a steel wire rope is wound on the winding drum and is connected with a lifting appliance, a supporting device is arranged at the left end of the winding drum and can be rotatably assembled on a hoist bracket through a bearing seat, the supporting device comprises a first fixing plate fixed at the left end of the winding drum, a second fixing plate is arranged in the winding drum at the right side of the first fixing plate, the first fixing plate and the second fixing plate both play a role in supporting and fixing, the first fixing plate and the second fixing plate are arranged at intervals, a supporting shaft which is coaxially arranged with the winding drum is arranged in the left end of the winding drum and plays a supporting role, the right end of the supporting shaft is fixed with the second fixing plate, the left end of the supporting shaft is fixed with the first fixing plate and extends out of the first fixing plate, the left end of the supporting shaft is rotatably assembled on the hoist bracket through a bearing seat. The right end of the winding drum is provided with a power mechanism, the power mechanism comprises a flange plate, the flange plate plays a supporting role, the left end of the flange plate extends into the winding drum, the right end of the flange plate is detachably and fixedly connected with the winding drum, the flange plate is hollow, a horizontally arranged sleeve is fixed in the flange plate, and an inner gear ring is arranged in the sleeve; the right side of the flange plate is provided with a motor supporting seat, the motor supporting seat plays a role in supporting and fixing, the lower end of the motor supporting seat is fixed with the hoist bracket, the left end of the motor supporting seat is assembled with the flange plate through a first supporting bearing, the flange plate is rotatably assembled on the motor supporting seat, the right end of the motor supporting seat is provided with a horizontally arranged speed reducing motor, the left end of the speed reducing motor is detachably and fixedly connected with the motor supporting seat, a power output shaft of the speed reducing motor extends into the flange plate, a driving wheel is fixed on the power output shaft of the speed reducing motor, the outer side of the driving wheel is provided with an outer gear ring which is correspondingly arranged with the sleeve, the driving wheel is sleeved in the sleeve, the power output shaft of the speed reducing motor drives the winding drum to rotate clockwise, the winding drum winds a steel wire rope, the steel wire rope pulls the lifting appliance to lift a heavy object, the power output shaft of the speed reducing motor drives the winding drum to rotate anticlockwise, and the winding drum releases the steel wire rope, the spreader is lowered.

Preferably, a plurality of heat dissipation holes are formed in the first fixing plate and the second fixing plate.

Preferably, the heat dissipation holes on the first fixing plate are uniformly arranged around the support shaft at intervals; the radiating holes in the second fixing plate are uniformly arranged at intervals around the supporting shaft.

Preferably, be equipped with the second support bearing between gear motor's power output shaft and the motor supporting seat, gear motor's power output shaft passes through the rotatable assembly of second support bearing on the motor supporting seat, and the setting of second support bearing makes gear motor's power output shaft reduce and rocks, has strengthened gear motor's life.

Preferably, the top end of the gear motor is provided with a lifting lug, and the gear motor is lifted by the lifting lug, so that the gear motor is convenient to install.

The scheme has the following advantages:

the speed reducing motor is in transmission connection with the winding drum through the flange plate, and the transmission wheel is sleeved with the sleeve, so that the lifting mechanism is more compact, convenient to assemble and disassemble and convenient to maintain; the supporting device is arranged, the supporting shaft is fixed through the first fixing plate and the second fixing plate, and compared with the situation that the whole supporting shaft penetrates through the winding drum, the self weight of the winding drum is reduced; the heat dissipation holes formed in the first fixing plate and the second fixing plate play a role in heat dissipation; the arrangement of the second support bearing enables the power output shaft of the speed reducing motor to reduce shaking, and the service life of the speed reducing motor is prolonged; the setting of lug lifts by crane gear motor through the lug, is convenient for install.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an assembly structure of a driving wheel and a sleeve;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B of fig. 1.

Reference numerals: 1. a reel; 2. a support device; 3. a gourd bracket; 4. a power mechanism; 5. a reduction motor; 21. a first fixing plate; 22. a second fixing plate; 23. a support shaft; 24. a bearing seat; 25. heat dissipation holes; 41. a flange plate; 42. a sleeve; 51. a motor supporting seat; 52. a first support bearing; 53. a driving wheel; 54. a second support bearing; 55. and (7) lifting lugs.

Detailed Description

As shown in fig. 1-4, a lifting mechanism of an electric hoist of a crane comprises a horizontally arranged winding drum 1, the winding drum 1 is a duplex winding drum, the winding drum 1 is provided with a steel wire rope groove, and a steel wire rope is wound on the winding drum 1 and connected with a lifting appliance, the left end of the winding drum 1 is provided with a supporting device 2, the supporting device 2 is rotatably assembled on a hoist bracket 3 through a bearing seat 24, the supporting device 2 comprises a first fixing plate 21 fixed at the left end of the winding drum 1, a second fixing plate 22 is arranged in the winding drum at the right side of the first fixing plate 21, the first fixing plate 21 and the second fixing plate 22 both play a role of supporting and fixing, the first fixing plate 21 and the second fixing plate 22 are arranged at intervals, a supporting shaft 23 coaxially arranged with the winding drum 1 is arranged in the left end of the winding drum 1, the supporting shaft 23 plays a role of supporting, the right end of the supporting shaft 23 is fixed with the second fixing plate 22, the left end of the supporting shaft 23 is fixed with the first fixing plate 21 and extends out of the first fixing plate 21, the left end of the support shaft 23 is rotatably fitted to the hoist bracket 3 through a bearing housing 24. The right end of the winding drum 1 is provided with a power mechanism 4, the power mechanism 4 comprises a flange plate 41, the flange plate 41 plays a supporting role, the left end of the flange plate 41 extends into the winding drum 1, the right end of the flange plate 41 is detachably and fixedly connected with the winding drum 1, the flange plate 41 is hollow, a horizontally arranged sleeve 42 is fixed in the flange plate 41, and an inner gear ring is arranged in the sleeve 42; a motor supporting seat 51 is arranged on the right side of the flange 41, the motor supporting seat 51 plays a role in supporting and fixing, the lower end of the motor supporting seat 51 is fixed with the hoist bracket 3, the left end of the motor supporting seat 51 is assembled with the flange 41 through a first supporting bearing 52, the flange 41 is rotatably assembled on the motor supporting seat 51, a horizontally arranged speed reduction motor 5 is arranged at the right end of the motor supporting seat 51, the left end of the speed reduction motor 5 is detachably and fixedly connected with the motor supporting seat 51, a power output shaft of the speed reduction motor 5 extends into the flange 41, a driving wheel 53 is fixed on the power output shaft of the speed reduction motor 5, an outer gear ring arranged corresponding to the sleeve 42 is arranged on the outer side of the driving wheel 53, the driving wheel 53 is sleeved in the sleeve 42, the power output shaft of the speed reduction motor 5 drives the winding drum 1 to rotate clockwise, the winding drum 1 winds a steel wire rope, and the steel wire rope pulls the lifting appliance to lift a heavy object, the power output shaft of the speed reducing motor 5 drives the winding drum 1 to rotate anticlockwise, the winding drum 1 releases the steel wire rope, and the lifting appliance descends.

Preferably, a plurality of heat dissipation holes 25 are formed in each of the first fixing plate 21 and the second fixing plate 22.

Preferably, the heat dissipation holes on the first fixing plate 21 are uniformly spaced around the support shaft 23; the heat radiating holes 25 of the second fixing plate 22 are uniformly spaced around the support shaft 23.

Preferably, a second support bearing 54 is arranged between the power output shaft of the speed reducing motor 5 and the motor support seat 51, the power output shaft of the speed reducing motor 5 is rotatably assembled on the motor support seat 51 through the second support bearing 54, and the arrangement of the second support bearing 52 reduces the shaking of the power output shaft of the speed reducing motor 5, so that the service life of the speed reducing motor 5 is prolonged.

Preferably, the top end of the gear motor 5 is provided with a lifting lug 55, and the gear motor 5 is lifted by the lifting lug 55, so that the gear motor is convenient to mount.

The use process comprises the following steps:

when the hoisting device is used, the speed reducing motor 5 is started, the power output shaft of the speed reducing motor 5 rotates clockwise, the power output shaft of the speed reducing motor 5 drives the transmission wheel 53 to rotate, the transmission wheel 53 drives the sleeve 42 to rotate, the winding drum 1 rotates clockwise, the winding drum 1 winds the steel wire rope, and the steel wire rope pulls the hoisting device to ascend so as to hoist a heavy object; when the power output shaft of the gear motor 5 rotates anticlockwise, the winding drum 1 rotates anticlockwise along with the power output shaft of the gear motor 5, the winding drum 1 releases the steel wire rope, and the lifting appliance descends.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a hoist electric block's hoist mechanism, includes the reel that the level set up, the left end of reel is equipped with strutting arrangement, and strutting arrangement passes through the rotatable assembly of bearing frame on the calabash support, and the right-hand member of reel is equipped with power unit, its characterized in that: the power mechanism comprises a flange plate, the left end of the flange plate extends into the winding drum, the right end of the flange plate is detachably and fixedly connected with the winding drum, the inside of the flange plate is hollow, a horizontally arranged sleeve is fixed in the flange plate, and an inner gear ring is arranged in the sleeve; the right side of ring flange is equipped with the motor supporting seat, the lower extreme of motor supporting seat is fixed with the calabash support, the left end of motor supporting seat is through first support bearing and ring flange assembly, the right-hand member of motor supporting seat is equipped with the gear motor that the level set up, fixed connection can be dismantled with the motor supporting seat to gear motor's left end, gear motor's power output shaft extends to in the ring flange, and be fixed with the drive wheel on gear motor's the power output shaft, the outer ring gear that corresponds the setting with the sleeve is seted up in the outside of drive wheel, the drive wheel cover is established in the sleeve.

2. The lifting mechanism of the electric hoist of the crane according to claim 1, characterized in that: the supporting device comprises a first fixing plate fixed at the left end of the winding drum, a second fixing plate is arranged in the winding drum on the right side of the first fixing plate, the first fixing plate and the second fixing plate are arranged at intervals, a supporting shaft which is coaxial with the winding drum is arranged inside the left end of the winding drum, the right end of the supporting shaft is fixed with the second fixing plate, the left end of the supporting shaft is fixed with the first fixing plate and extends out of the first fixing plate, and the left end of the supporting shaft is rotatably assembled on the hoist support through a bearing seat.

3. The lifting mechanism of the electric hoist of the crane according to claim 2, characterized in that: a plurality of heat dissipation holes are formed in the first fixing plate and the second fixing plate.

4. The lifting mechanism of the electric hoist of the crane as claimed in claim 3, wherein: the radiating holes in the first fixing plate are uniformly arranged at intervals around the supporting shaft; the radiating holes in the second fixing plate are uniformly arranged at intervals around the supporting shaft.

5. The lifting mechanism of the electric hoist of the crane according to claim 1, characterized in that: and a second supporting bearing is arranged between the power output shaft of the speed reducing motor and the motor supporting seat, and the power output shaft of the speed reducing motor is rotatably assembled on the motor supporting seat through the second supporting bearing.

6. The lifting mechanism of the electric hoist of the crane as claimed in claim 5, wherein: the top end of the speed reducing motor is provided with a lifting lug.

7. The lifting mechanism of the electric hoist of crane according to any one of claims 1 to 6, characterized in that: the reel is a duplex reel.