CN217627343U

CN217627343U - Electric hoist with self-locking structure

Info

Publication number: CN217627343U
Application number: CN202221734159.2U
Authority: CN
Inventors: 杜林�; 朱雷雷
Original assignee: Shandong Chengze Intelligent Equipment Technology Co ltd
Current assignee: Shandong Chengze Intelligent Equipment Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-10-21
Anticipated expiration: 2032-07-05

Abstract

The utility model relates to a hoisting equipment, concretely relates to electric block with auto-lock structure, including the crane box, the crane box rear portion is provided with the control box, the crane box surface is provided with plays to rise the motor, the middle part of crane box is provided with the reel, the reel outside is provided with wire rope, be provided with first pulley on the wire rope, first pulley right side is provided with the second pulley, be provided with speed sensor institute on the first pulley, the crane box bottom is provided with the bottom plate, be provided with the locating part on the bottom plate, be provided with the spout on the locating part, be provided with the auto-lock structure in the spout, be provided with locating component directly over the auto-lock structure. The utility model has the advantages of simple structure, safe practicality, can carry out auto-lock and auto-lock fast to wire rope, to the accurate auto-lock of hoisting point, guarantee the security performance of auto-lock, reach dual fail-safe's effect after using with current brake mechanism jointly, improve the security performance greatly.

Description

Electric hoist with self-locking structure

Technical Field

The utility model belongs to the technical field of electric block, especially, relate to an electric block with auto-lock structure.

Background

Along with the improvement of people's standard of living, electric block has become the frequent hoisting equipment of use when producing, install usually on overhead traveling crane, the portal crane, electric block has small, the dead weight is light, easy operation, characteristics such as convenient to use, be used for places such as ore deposit enterprise, storage, pier, in actual industrial production, the goods of electric block handling are bulky mostly, weight is heavier, for guaranteeing safety in production and guarantee workman's personal safety, it has higher security to require electric block, consequently, all install arresting gear on the electric block.

The existing electric hoist is generally directly provided with a braking device to brake the electric hoist as a safety braking electric hoist with the patent number of CN201820908259.X, the braking device is worn or even damaged after being used for a long time, so that the electric hoist cannot brake normally.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the prior art who mentions in the above-mentioned background art, provide an electric block with auto-lock structure, have simple structure, safe practical, can carry out automatic auto-lock and the fast advantage of auto-lock to wire rope, braking effect is better.

In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model provides an electric block with auto-lock structure, including the jack box, the jack box rear portion is provided with the control box, the jack box top is provided with running gear, the jack box surface is provided with and plays to rise the motor, the middle part of jack box is provided with the reel, the reel right side is provided with the stopper, the reel outside is provided with wire rope, the jack box bottom is provided with the bottom plate, be provided with the locating part on the bottom plate, be provided with the spout on the locating part, be provided with auto-lock structure in the spout, be provided with locating component directly over the auto-lock structure, wire rope from the top down passes locating component, auto-lock structure and bottom plate in proper order, wire rope is last to be provided with first pulley, first pulley right side is provided with the second pulley, be provided with speed sensor institute on the first pulley, the control box left side is provided with the battery, the control box is connected with auto-lock structure, speed sensor, battery.

As preferred, self-locking structure is provided with first elasticity piece, first elasticity piece right side is provided with the second elasticity piece, first elasticity piece and second elasticity piece front end are articulated, first elasticity piece rear end is provided with first elastic plate, be provided with the electro-magnet on the first elastic plate, second elasticity piece rear end is provided with the second elastic plate, be provided with the permanent magnet on the second elastic plate, first elasticity piece inboard is provided with the self-locking piece, second elasticity piece inboard is provided with the same self-locking piece.

Preferably, the upper end and the lower end of the self-locking piece are provided with clamping protrusions, the middle of the self-locking piece is provided with a friction protrusion, the clamping protrusions protrude towards the middle of the self-locking piece than the friction protrusion, the tops of the clamping protrusions are provided with arc-shaped recesses, the tops of the friction protrusions are provided with arc-shaped recesses, and the arc-shaped recesses are matched with the steel wire ropes.

Preferably, the middle of the positioning assembly is provided with a first positioning pulley, the right side of the first positioning pulley is provided with a second positioning pulley, the first positioning pulley and the second positioning pulley are mutually attached, a through hole is formed in the middle of the first positioning pulley and the second positioning pulley, the outer sides of the first positioning pulley and the second positioning pulley are provided with a support frame, and the support frame is fixed on the inner side of the lifting box.

Preferably, a groove is formed in the outer ring of the first positioning pulley, the same groove is formed in the outer ring of the second positioning pulley, the grooves form a through hole, and the through hole is a circular through hole and has the same diameter as the steel wire rope.

Preferably, the first pulley is provided with a groove, and the rotating speed sensor is a magnetoelectric rotating speed sensor.

Preferably, the surface of the control box is provided with a solar panel, the surface of the hoisting box is also provided with a solar panel, and the solar panel is connected with the storage battery.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model discloses a set up self-locking structure on wire rope and control wire rope, when wire rope stall, wire rope drives first pulley and second pulley stall rotation, tachometric sensor on the first pulley sends the rotational speed to the control box, the control box makes through the current direction that changes the electro-magnet and holds the permanent magnet, make self-locking structure carry out the auto-lock braking to wire rope, avoid wire rope to continue to slide, through setting up the battery, when having a power failure, make the control box still can control the auto-lock structure and carry out the auto-lock braking, solar panel has then guaranteed the electric quantity of battery, also avoided electric block to have a power failure suddenly at the during operation, the potential safety hazard and the economic loss that the handling object dropped suddenly and brought, electric block has increased behind the self-locking structure simultaneously and has become the secondary braking by the primary braking, adopt the effectual braking effect who has guaranteed electric block of dual braking structure, especially when the stopper breaks down, the auto-locking structure can independently brake the auto-lock, the security when electric block uses has been improved, the incidence of production accident has been reduced, effectual life safety of having guaranteed the workman.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of the overall structure of the present invention provided in embodiment 1;

fig. 2 is a schematic partial sectional view of the present invention provided in embodiment 1;

fig. 3 is a schematic structural view of a self-locking structure of the present invention provided in embodiment 1;

fig. 4 is a schematic structural diagram of a positioning assembly according to the present invention provided in embodiment 1;

fig. 5 is a schematic view of a partial structure of a position limiting element according to the present invention provided in embodiment 1;

in the above figures, 1, a control box, 2, a walking device, 3, a hoisting box, 4, a solar panel, 5, a brake, 6, a hoisting motor, 7, a winding drum, 8, a steel wire rope, 9, a positioning component, 10, a reinforcing rib, 11, a self-locking structure, 12, a bottom plate, 13, a first elastic sheet, 14, a second elastic sheet, 15, a self-locking piece, 16, a first elastic plate, 17, a second elastic plate, 18, an electromagnet, 19, a limiting piece, 20, a first pulley, 21, a second pulley, 22, a rotation speed sensor, 23, a storage battery, 24 clamping protrusions, 25, friction protrusions, 26, a sliding groove, 271, a first positioning pulley, 272, a second positioning pulley, 28, a wheel shaft, 29, a supporting frame, 30 and a permanent magnet.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations set forth in the following description of the specific embodiments.

Embodiment 1, please refer to fig. 1-5, which provides an electric hoist with a self-locking structure, comprising a lifting box 3, a control box 1 on the back of the lifting box 3, and a traveling device 2 above the lifting box 3, wherein a lifting motor 6 is arranged on the surface of the lifting box 3 to control a drum 7 to operate, a drum 7 is provided inside the hoist case 3, a brake 5 is provided on the right side of the drum 7 to brake the drum 7, a wire rope 8 is wound around the outside of the drum 7, a bottom plate 12 is provided at the bottom of the hoist case 3, the bottom plate 12 is provided with a self-locking structure 11, which provides additional guarantee for the secondary braking of the electric hoist when the original brake 5 goes wrong, a positioning component 9 is arranged above the self-locking structure 11 and is used for fixing the position of the steel wire rope 8, so that the steel wire rope 8 led out of the winding drum 7 is always right above the self-locking structure 11, the self-locking of the self-locking structure 11 is facilitated, the self-locking structure 11 is provided with a limiting part 19 at the outer side for limiting the position of the self-locking structure 11 and avoiding the deviation of the self-locking structure 11, the limiting part 19 can also be provided with a groove for fixing a hinged roller to strengthen the limitation on the self-locking structure 11 and avoid the displacement, the limiting part 19 is fixed on the upper end surface of the bottom plate 12, the limiting part 19 is provided with a sliding groove 26 which is convenient for the self-locking structure 11 to loosen and clamp the steel wire rope 8, the steel wire rope 8 sequentially passes through the positioning component 9, the self-locking structure 11 and the bottom plate 12, the steel wire rope 8 is provided with a first pulley 20 and a second pulley 21 and is positioned below the hoisting box 3 and used for hoisting goods, the first pulley 20 is provided with a rotation speed sensor 22 for sensing the rotation speed of the pulley, the rotation speed sensor 22 uses a magnetoelectric rotation speed sensor 22, and a hole or a groove is reserved on the first pulley 20 and is used for the magnetoelectric rotating speed sensor 22 to sense and measure the speed. The self-locking structure 11 comprises a first elastic sheet 13 and a second elastic sheet 14, the first elastic sheet 13 is hinged to the second elastic sheet 14, a first elastic plate 16 is arranged at the other end of the first elastic sheet 13, a second elastic plate 1 and 7 is arranged at the other end of the second elastic sheet 14 and used for controlling the tightness, an electromagnet 18 is arranged on the first elastic plate 16, a permanent magnet 30 is arranged on the second elastic plate 17, a fixing structure is arranged on the first elastic plate 16 and the second elastic plate 17 and used for fixing the electromagnet 18 and the permanent magnet 30, the electromagnet 18 and the permanent magnet 30 are opposite in position, the magnetic pole direction of the electromagnet 18 is controlled by controlling the current flow direction, so that the tightness of the self-locking structure 11 is controlled, the self-locking structure 11 freely clamps and releases a steel wire rope 8 to achieve self-locking, a self-locking part 15 is arranged on the inner sides of the first elastic sheet 13 and the second elastic sheet 14, clamping protrusions 24 protruding towards the middle steel wire rope 8 are arranged at the upper end and the lower end of the self-locking part 15, the steel wire rope is conveniently clamped, a friction protrusion 25 protruding towards the middle steel wire rope 8 is arranged, the friction protrusion 25, and the friction protrusion effect of the self-locking part is improved, and the friction effect of the steel wire rope is convenient for clamping. This locating component 9 includes first locating pulley 271 and second locating pulley 272, form the through-hole in the middle of first locating pulley 271 and the second locating pulley 272, first locating pulley 271 and second locating pulley 272 both sides are provided with support frame 29, support frame 29 is fixed in the inboard of crane case 3, and support frame 29 strengthens with strengthening rib 10, improve the weight that locating component 9 can bear, first locating pulley 271 and second locating pulley 272 are laminated each other, be provided with semicircular recess on first locating pulley 271 and the second locating pulley 272 outer lane, and form jointly the through-hole, the through-hole is circular through-hole and the diameter is the same with wire rope 8's diameter, make this locating component 9 also guarantee from the wire rope 8 that reel 7 was derived no matter from which direction can both smooth transition to directly over self-locking structure 11 when fixing wire rope 8. Be provided with battery 23 on control box 1 left side to auto-lock structure 11, speed sensor 22, battery 23 are connected through the electricity with control box 1, and auto-lock structure 11 still can carry out the auto-lock when having a power failure, and this control box 1 and 3 surfaces of crane box are provided with solar panel 4, and solar panel 4 is connected with battery 23 electricity, for the battery 23 power supply.

The utility model discloses a theory of operation: when the device is used, the control box 1 controls the lifting motor 6 to work and drives the winding drum 7 to rotate, the winding drum 7 drives the steel wire rope 8 to carry articles, when braking is needed, the control box 1 controls the brake 5 and the self-locking structure 11 to brake, when abnormality occurs, such as the brake 5 is broken down or the connection between the steel wire rope 8 and the winding drum 7 is disconnected, the steel wire rope 8 stalls and descends, the steel wire rope 8 descends to drive the first pulley 20 and the second pulley 21 to rotate, the rotating speed sensor 22 arranged on the first pulley 20 detects the rotating speed of the first pulley 20 and transmits the rotating speed to the control box 1, the control box 1 obtains the descending speed of the steel wire rope 8 through analysis and calculation, when the descending speed of the steel wire rope 8 exceeds a set threshold value of the steel wire rope 8, the control box 1 controls the magnetic pole direction of the electromagnet 18 through controlling the current flow direction, thereby make electro-magnet 18 and permanent magnet 30 heteropolar inter attraction, inwards extrude first take-up spring 16 and second take-up spring 17, make the space in the middle of first take-up spring 13 and the second take-up spring 14 diminish, first take-up spring 13 and the inboard 15 tight wire rope 8 of self-locking piece of second take-up spring 14 press from both sides tightly, just so realized the auto-lock to wire rope 8, this kind of mode simple structure, braking effect is good, when having a power failure suddenly, control box 1 supplies power through control battery 23 earlier, control auto-lock structure 11 carries out the auto-lock again, thereby ensure electric block's safety braking, thereby potential safety hazard and economic loss have been reduced, the security performance when having improved electric block and using, the incidence of production accident has been reduced, effectual workman's life safety has been guaranteed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an electric block with auto-lock structure, includes the jack box, the jack box rear portion is provided with the control box, the jack box top is provided with running gear, its characterized in that: the lifting box surface is provided with and plays to rise the motor, the middle part of lifting box is provided with the reel, the reel right side is provided with the stopper, be provided with wire rope on the reel, the lifting box bottom is provided with the bottom plate, be provided with the locating part on the bottom plate, be provided with the spout on the locating part, be provided with auto-lock structure in the spout, be provided with locating component directly over the auto-lock structure, wire rope from the top down passes locating component, auto-lock structure and bottom plate in proper order, be provided with first pulley on the wire rope, first pulley right side is provided with the second pulley, be provided with speed sensor on the first pulley, the control box left side is provided with the battery, the control box is connected with auto-lock structure, speed sensor, battery.

2. The electric hoist with the self-locking structure of claim 1, characterized in that: self-locking structure is provided with first elasticity piece, first elasticity piece right side is provided with the second elasticity piece, first elasticity piece and second elasticity piece front end are articulated, first elasticity piece rear end is provided with first elastic plate, be provided with the electro-magnet on the first elastic plate, second elasticity piece rear end is provided with the second elastic plate, be provided with the permanent magnet on the second elastic plate, first elasticity piece inboard is provided with from the latch fitting, second elasticity piece inboard is provided with the same from the latch fitting.

3. The electric hoist with the self-locking structure of claim 2, characterized in that: the upper end and the lower end of the self-locking piece are provided with clamping protrusions, the middle of the self-locking piece is provided with a friction protrusion, the clamping protrusions protrude towards the middle of the self-locking piece than the friction protrusion, the tops of the clamping protrusions are provided with arc-shaped recesses, the tops of the friction protrusions are provided with arc-shaped recesses, and the arc-shaped recesses are matched with the steel wire ropes.

4. The electric hoist with the self-locking structure of claim 3, characterized in that: the lifting jack is characterized in that a first positioning pulley is arranged in the middle of the positioning assembly, a second positioning pulley is arranged on the right side of the first positioning pulley, the first positioning pulley and the second positioning pulley are attached to each other, a through hole is formed in the middle of the first positioning pulley and the second positioning pulley, a support frame is arranged on the outer sides of the first positioning pulley and the second positioning pulley, and the support frame is fixed on the inner side of the lifting jack.

5. The electric hoist with the self-locking structure of claim 4, characterized in that: the first positioning pulley outer ring is provided with a groove, the second positioning pulley outer ring is provided with the same groove, the grooves form through holes, and the through holes are circular and have the same diameter as that of the steel wire rope.

6. The electric hoist with the self-locking structure of claim 5, characterized in that: the groove that is provided with on the first pulley, revolution speed sensor adopts magnetoelectric revolution speed sensor.

7. The electric hoist with the self-locking structure of claim 6, characterized in that: the control box surface is provided with solar panel, the jack box surface also is provided with solar panel, solar panel is connected with the battery.