CN211255077U

CN211255077U - Electric hoist with locking function

Info

Publication number: CN211255077U
Application number: CN201922227079.2U
Authority: CN
Inventors: 李小伟
Original assignee: Smf Heavy Industry Suzhou Co ltd
Current assignee: Smf Heavy Industry Suzhou Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-14
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a belong to electric block technical field, specifically be an electric block of area locking function, including shell body, pivot, wind-up roll and driving motor, the pivot both ends are transversely installed at the inner chamber middle part of shell body through the bearing, the wind-up roll cup joints on the outer wall of pivot, the wire-wrap has the rope on the outer wall of wind-up roll, one end of rope runs through the bottom of shell body and is connected with the couple, driving motor installs the left side at the inner chamber rear side wall of shell body through the motor cabinet, through the cooperation between driven worm wheel, the drive worm, after driving motor stops, has certain locking effect between driven worm wheel, the drive worm to can play the effect of locking to a certain extent; through the setting of locking friction lasso, after driving motor stopped, the electro-magnet adsorbs the armature plate and makes the contact friction between locking friction lasso and the pivot, further promotes the effect of locking.

Description

Electric hoist with locking function

Technical Field

The utility model relates to an electric block technical field specifically is an electric block of area locking function.

Background

The electric hoist is a special hoisting device, is installed on a crown block and a gantry crane, 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.

The electric hoist has compact structure, and the motor axis is vertical to the electric hoist of the winding drum axis by adopting a worm gear transmission device.

Receive and release the rope through driving motor when using, reach and lift or the control action that descends the object, current electric block when stopping makes the rope drive the inside wind-up roll of electric block and rotates easily under the action of gravity of object to cause the damage to the object.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take electric block of locking function to current electric block who proposes in solving above-mentioned background art makes the rope drive the inside wind-up roll of electric block and rotates easily under the action of gravity of object when stopping, thereby causes the problem of damage to the object.

In order to achieve the above object, the utility model provides a following technical scheme: an electric hoist with a locking function comprises an outer shell, a rotating shaft, a winding roller and a driving motor, wherein two ends of the rotating shaft are transversely installed in the middle of an inner cavity of the outer shell through bearings, the winding roller is sleeved on the outer wall of the rotating shaft, a rope is wound on the outer wall of the winding roller, one end of the rope penetrates through the bottom of the outer shell and is connected with a hook, the driving motor is installed on the left side of the rear side wall of the inner cavity of the outer shell through a motor base, a driving worm is connected onto an output shaft of the driving motor, a driven worm wheel is sleeved on the left side of the outer wall of the rotating shaft and is meshed with the driven worm wheel, a locking friction ring is sleeved on the right side of the outer wall of the rotating shaft, supporting springs are connected between the left side and the right side of the bottom of the locking, and an electromagnet is arranged at the bottom of the inner cavity of the outer shell and at a position corresponding to the armature plate.

Preferably, the lower surface of the outer shell is provided with a corrugated buffer sleeve, and the rope penetrates through the corrugated buffer sleeve.

Preferably, the shell body includes casing and top cap down, the downside at the top cap is connected to the casing joint down, and passes through bolted connection between casing and the top cap down.

Preferably, the inner cavity of the locking friction ferrule is circular, the diameter of the inner cavity of the locking friction ferrule is larger than that of the outer wall of the rotating shaft, and a friction plate is bonded on the inner wall of the locking friction ferrule.

Preferably, a locking ring is arranged on the outer wall of the rotating shaft and at a position corresponding to the locking friction ferrule, and friction stripes are uniformly arranged on the outer wall of the locking ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1) through the matching effect between the driven worm wheel and the driving worm, after the driving motor stops, a certain locking effect is achieved between the driven worm wheel and the driving worm, so that the locking effect can be achieved to a certain extent;

2) through the setting of locking friction lasso, after driving motor stopped, the electro-magnet adsorbs the armature plate and makes the contact friction between locking friction lasso and the pivot, further promotes the effect of locking.

Drawings

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

fig. 2 is a cross-sectional view of the present invention.

In the figure: the device comprises an outer shell 1, a corrugated buffer sleeve 2, a rotating shaft 3, a driven worm wheel 4, a wind-up roll 5, a locking friction ferrule 6, a driving motor 7, a driving worm 8, a rope 9, a hook 10, an armature plate 11, a supporting spring 12 and an electromagnet 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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

Example (b):

referring to fig. 1-2, the present invention provides a technical solution: an electric hoist with a locking function comprises an outer shell 1, a rotating shaft 3, a winding roller 5 and a driving motor 7, wherein two ends of the rotating shaft 3 are transversely installed in the middle of an inner cavity of the outer shell 1 through bearings, the winding roller 5 is sleeved on the outer wall of the rotating shaft 3, a rope 9 is wound on the outer wall of the winding roller 5, one end of the rope 9 penetrates through the bottom of the outer shell 1 and is connected with a hook 10, the rope 9 is wound on the outer wall of the winding roller 5, one end of the inner side of the rope is fixed on the winding roller 5, and the winding roller 5 can rotate along with the rotation of the rotating shaft 3;

the driving motor 7 is installed on the left side of the rear side wall of the inner cavity of the outer shell 1 through a motor base, an output shaft of the driving motor 7 is connected with a driving worm 8, the driven worm wheel 4 is sleeved on the left side of the outer wall of the rotating shaft 3, the driving worm 8 is meshed with the driven worm wheel 4, the driving motor 7 can drive the driving worm 8 to rotate, and the driven worm wheel 4 is enabled to rotate through the meshing effect of the driving worm 8 and the driven worm wheel 4;

locking friction ferrule 6 has been cup jointed on the outer wall right side of pivot 3, all be connected with supporting spring 12 between the bottom left and right sides of locking friction ferrule 6 and the 1 inner chamber bottom of shell body, the bottom middle part of locking friction ferrule 6 is connected with

armature plate

11, 1 inner chamber bottom of shell body and the position that corresponds with armature plate 11 are provided with electro-magnet 13, supporting spring 12 can be to 6 elastic support of locking friction ferrule, when electro-magnet 13 adsorbs armature plate 11, thereby can adsorb locking friction ferrule 6 and descend and pivot 3 between the friction, reach the effect to 3 locking of countershaft.

Further, the lower surface of shell body 1 is provided with ripple cushion collar 2, and rope 9 runs through ripple cushion collar 2, through the setting of ripple cushion collar 2, can be to couple 10 limiting effect to avoid couple 10 to cause the impact to shell body 1.

Further, shell body 1 includes casing and top cap down, and the casing joint is at the downside of top cap down, and passes through the screw connection between casing and the top cap down, and the convenience is overhauld the effect to inside.

Further, the inner cavity of the locking friction ferrule 6 is circular, the diameter of the inner cavity of the locking friction ferrule 6 is larger than the diameter of the outer wall of the rotating shaft 3, a friction plate is bonded on the inner wall of the locking friction ferrule 6, and the friction effect between the locking friction ferrule 6 and the rotating shaft 3 is increased through the arrangement of the friction plate.

Further, a locking ring is arranged on the outer wall of the rotating shaft 3 and corresponds to the locking friction ferrule 6, friction stripes are uniformly arranged on the outer wall of the locking ring, and the friction effect between the locking ring and the locking friction ferrule 6 is improved through the arrangement of the locking ring.

The working principle is as follows: a rope 9 is wound on the winding roller 5 in advance, one end of the rope 9 is fixedly connected with the winding roller 5, and the other end of the rope passes through the outer shell 1 and the corrugated buffer sleeve 2 and extends to the lower side of the outer shell 1 to be connected with a hook 10;

the driving motor 7 drives the driven worm wheel 4 to rotate through the driving worm 8, so that the driven worm wheel 4 drives the rotating shaft 3 and the winding roller 5 to rotate, the rope 9 is wound and unwound, and the hook 10 can be driven to lift and fall;

after the stop work of the driving motor 7, through the cooperation of the driving worm 8 and the driven worm wheel 4, the winding roller 5 has a locking effect, meanwhile, the electromagnet 13 is electrified to generate magnetic force and adsorb the armature plate 11, the armature plate 11 drives the locking friction ferrule 6 to descend and compress the supporting spring 12, so that the locking friction ferrule 6 is tightly attached to the outer wall of the rotating shaft 3, through the friction between the rotating shaft 3 and the locking friction ferrule 6, the rotating shaft 3 is prevented from rotating in a locking manner, when the winding roller is used again, the power supply of the electromagnet 13 is cut off, the magnetic force generated by the electromagnet 13 is small, so that under the elastic supporting effect of the supporting spring 12, the locking friction ferrule 6 ascends and is separated from the rotating shaft 3, and the rotating shaft 3 can rotate again under the driving effect of the driving motor 7.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take electric block of locking function, includes shell body (1), pivot (3), wind-up roll (5) and driving motor (7), the inner chamber middle part at shell body (1) is transversely installed through the bearing at pivot (3) both ends, wind-up roll (5) cup joint on the outer wall of pivot (3), it has rope (9) to wind the joint on the outer wall of wind-up roll (5), the one end of rope (9) runs through the bottom of shell body (1) and is connected with couple (10), driving motor (7) are installed in the left side of the inner chamber rear side wall of shell body (1) through the motor cabinet, its characterized in that: be connected with drive worm (8) on the output shaft of driving motor (7), driven worm wheel (4) have been cup jointed on the outer wall left side of pivot (3), drive worm (8) mesh mutually with driven worm wheel (4), locking friction lasso (6) have been cup jointed on the outer wall right side of pivot (3), all be connected with supporting spring (12) between the bottom left and right sides of locking friction lasso (6) and shell body (1) inner chamber bottom, the bottom middle part of locking friction lasso (6) is connected with armature plate (11), shell body (1) inner chamber bottom and the position that corresponds with armature plate (11) are provided with electro-magnet (13).

2. The electric hoist with the locking function according to claim 1, characterized in that: the lower surface of shell body (1) is provided with ripple cushion collar (2), ripple cushion collar (2) are run through in rope (9).

3. The electric hoist with the locking function according to claim 1, characterized in that: the shell body (1) comprises a lower shell body and a top cover, wherein the lower shell body is connected to the lower side of the top cover in a clamping mode, and the lower shell body is connected with the top cover through screws.

4. The electric hoist with the locking function according to claim 1, characterized in that: the inner cavity of the locking friction ferrule (6) is circular, the diameter of the inner cavity of the locking friction ferrule (6) is larger than that of the outer wall of the rotating shaft (3), and a friction plate is bonded on the inner wall of the locking friction ferrule (6).

5. The electric hoist with the locking function according to claim 1, characterized in that: and a locking ring is arranged on the outer wall of the rotating shaft (3) and at a position corresponding to the locking friction ferrule (6), and friction stripes are uniformly arranged on the outer wall of the locking ring.