KR101599230B1 - Compact type hoist having hoisting embedded motor of which capacity is changeable - Google Patents

Abstract

The present invention relates to a compact type-hoist having a hoisting embedded motor with an easily changeable capacity, comprising: a hook; a wire drum; a module type-hoisting embedded motor; and an embedded brake. The hook is used to hang an object with a heavy weight. The wire drum forms a place where a wire is wound or released to allow an upward/downward movement of the wire connected to the hook and is rotated about a center shaft as a rotation axial core. The module type-hoisting embedded motor provides power for a normal/reverse directional rotation of the wire drum, is embedded in the interior of the wire drum, and is arranged along the center shaft. The embedded brake is embedded in the interior of the wire drum and restricts the rotation of the wire drum when a stop signal is input. The module type-hoisting embedded motor comprises: a stator; and a rotor. The stator is coupled to the module shaft. The rotor is spaced from the stator and is fixated to the inner surface of the wire drum. The center shaft is coupled to the module shaft.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a compact type hoist having a hoist built-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact type hoist including a motor having a built-in hoisting structure capable of easily changing its capacity, and more particularly, to a compact type hoist having a hoisting motor and a brake built- By changing the motor as well as changing the capacity, it is possible to reduce the overall size as well as reduce the weight of the motor. It is also easy to change the capacity and freely change the hoisting speed. The present invention relates to a compact type hoist which can contribute to productivity improvement and cost reduction due to increase in convenience of product production and reduction of fatigue of a worker.

A hoist is a device that integrates a motor decelerating device and a wire drum. The hoist is a device for moving a heavy object by lifting up a heavy object on a hook and lifting it up, down, left, and right.

A hoist is a hook that can be hoisted around a heavy object, a wire drum with a groove that allows the wire to be rolled up or pulled down for up and down movement, that is, And a speed reducer having a speed reducer, which will be described with reference to FIG.

1 is a structural view of a hoist according to the prior art.

Referring to this figure, in the case of the hoist according to the prior art, the wire drum 1 is disposed at the center, the speed reducer 2 is attached to one side of the wire drum 1, And has a structure in which the sting motor 3 and the brake 4 are mounted.

As described above, in the prior art, since the speed reducer 2, the hoisting motor 3 and the brake 4 are disposed to the left and right of the wire drum 1, the manufacturing costs of the hoist are increased due to their sizes, There is a problem that its own weight is increased.

In other words, since the conventional hoist is a structure in which the structures of the speed reducer 2, the hoisting motor 3 and the brake 4 are all mounted on the outer side of the wire drum 1, the volume of the hoist must be increased. There are various problems such as a dead zone where work can not be performed due to the volume when hanging and moving.

In addition, since the size of the wire drum 1 must be changed according to the size of the heavy object, the hoisting motor 3 having different capacities must be employed, which causes a rise in manufacturing cost.

Korea Patent Office Application No. 10-2012-0138007

It is an object of the present invention to reduce the overall size by changing the hoisting motor and the brake to the built-in type without using the decelerator which has been applied before, Of course, it is possible to reduce the self weight, the capacity can be changed easily, and the hoisting speed can be freely changed, so that it is possible to implement various customized speeds according to the production site, thereby increasing the convenience of product production, And to provide a compact type hoist that can contribute to cost reduction.

The object is achieved by a hook for hooking a heavy object; A wire drum rotatable around the center shaft as a rotation axis, forming a place where the wire is wound or unwound for up and down movement of a wire connected to the hook; A modular hoisting built-in motor provided with power for normal and reverse rotation of the wire drum, the modular hoisting motor being embedded in the wire drum and disposed along the center shaft; And a built-in brake embedded in the wire drum and restricting the rotation of the wire drum when a stop signal is input, wherein the modular hoisting built-in motor comprises: a stator coupled to a module shaft; And a rotor spaced from the stator and fixed to an inner surface of the wire drum, wherein the center shaft is coupled with the module shaft. The compact type hoist includes a motor having a built- Lt; / RTI >

The modular hoisting built-in motor may be detachably coupled to a modular hoisting built-in motor provided with flanges at both ends and arranged adjacent to each other.

Wherein the built-in brake includes a brake pad for restricting rotation of the wire drum while being pressed against the inner surface of the wire drum at a radially inner side of the wire drum; A plurality of brake pads disposed radially inwardly of the wire drums with the brake pads interposed therebetween for movably supporting the brake pads; An electronic solenoid module connected to the plurality of levers and electronically driving the plurality of levers; And a return spring connected to the plurality of levers and biased elastically when the operation of the electromagnetic solenoid module is stopped to return the plurality of levers to their original positions.

The electronic solenoid module includes: a module casing; A solenoid module shaft disposed at the center of the module casing and having both ends exposed to the outside of the module casing and coupled to the levers; A coil coupled to the solenoid module shaft within the module casing, the coil being energized; And a module spring coupled to the solenoid module shaft at both sides of the coil.

Wherein the built-in brake is coupled to an anchor pin formed on a back plate, which is key-engaged with the center shaft, while the end of the lever is engaged with the lever, and the module casing is coupled to the back plate .

According to the present invention, it is possible to reduce the overall size by changing the hoisting motor and the brake to the built-in type and changing the capacity easily, unlike in the past without using the decelerator which has been applied before It is possible to change the hoisting speed freely and it is possible to implement various customized speeds according to the production site so that it is possible to increase the convenience of product production and improve the productivity by reducing the fatigue of the worker, A compact type hoist is provided that can contribute to savings.

1 is a structural view of a hoist according to the prior art.
FIG. 2A is a structural view of a compact type hoist including a motor with a built-in hoist that facilitates capacity change according to an embodiment of the present invention, and FIG. 2B is a structural view of each modular hoisting built-in motor shown in FIG.
3 is a partial cross-sectional structural view of the built-in brake region shown in Fig.
4 is a detailed structural view of the electronic solenoid module.
5 is a control block diagram of a compact type hoist according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 2 (a) is a structural view of a compact type hoist including a motor with a built-in hoisting facilitating capacity change according to an embodiment of the present invention, FIG. 2 (b) is a structural view of each modular hoisting- FIG. 4 is a detailed block diagram of the electronic solenoid module, and FIG. 5 is a control block diagram of a compact type hoist according to an embodiment of the present invention.

Referring to these drawings, a compact type hoist including a motor with a built-in hoist that facilitates capacity change according to the present embodiment can be applied to a hoist without using a speed reducer 2 (see FIG. 1) By changing the motor and brake to the built-in hoist motors 140a to 140c and the built-in brake 150 and improving the efficiency of the motor, the overall size can be reduced and the weight can be reduced. Further, So that they can contribute.

The compact type hoist including the motor with the built-in hoisting which facilitates the capacity change according to the present embodiment performing this role includes the hook 110, the hoisting built-in motors 140a to 140c and the built-in brake 150 And may include a wire drum 130.

The hook 110 has a hook shape and is used for hanging a heavy object. A wire bundle 111 for the operation of the wire 115 is provided around the hook 110.

The wire drum 130 forms a place where the wire 115 is wound or unwound for the up and down movement of the wire 115 connected to the hook 110.

A plurality of wire grooves 130a are formed on the surface of the wire drum 130 so that the wire 115 can be wound well without being tangled.

Such a wire drum 130 may be disposed in the frame cover 120. The frame cover 120 should be rigid so as to support the built-in structures, and may be designed to support the left-and-right moving assembly.

A carrier 125 for moving the compact type hoist using the high efficiency motor according to the present embodiment is provided on the frame cover 120.

The wire drum 130 is rotated in the normal and reverse directions with the center shaft 131 as the central axis to wind or unwind the wire 115. In the wire drum 130, 140a to 140c and a built-in brake 150, respectively.

Therefore, the compact type hoist according to the present embodiment can be made very compact in size smaller than the conventional one.

First, the hoist built-in motors 140a to 140c provide power for rotating the wire drums 130 in the forward and reverse directions, but they can be embedded in the wire drums 130 as before.

A plurality of such hoisting built-in motors 140a to 140c may be arranged horizontally and continuously along the center shaft.

In the illustrated embodiment of the present invention, each of the hoisting built-in motors 140a-140c includes a stator S coupled to the module shaft X as shown in Figure 2b, And a modular hoisting built-in motor 140 having a pair of rotors R fixedly installed and having flanges P at both ends thereof so as to be mutually engageable. The one module shaft X can be engaged with the center shaft 131 by using a bolt or the like by the flange P. [ The coupling between the module shaft X and the center shaft 131 is not limited to the coupling using the flange and the bolt, and various known methods can be applied.

In the embodiment shown in FIG. 2A, a plurality of modular hoisting built-in motors 140 are disposed, but the number is not limited to the illustrated number, and may be changed depending on the required capacity .

That is, since the motor 140 is equipped with a modular hoisting structure, it is possible to attach and detach the modular hoisting built-in motor 140, and the modular hoisting built-in motor 140 can be selectively added or removed according to the capacity, .

Accordingly, the outer size of the wire drum 130, that is, the width of the wire drum 130 may vary depending on the size of the heavy material. Instead of changing the hoisting motor itself for changing the capacity, The motor capacity can be easily changed by varying the number of the modular hoisting built-in motors 140. Thus, it is possible to make a significant contribution to the reduction of the manufacturing sense.

In addition, since the capacity can be easily changed, the hoisting speed can be freely changed, and various speeds can be customized according to the production site, which can greatly contribute to the convenience of the production of the product and the productivity improvement due to the reduction of the fatigue of the worker.

Therefore, when current flows to the stator (S1 to S3) of the hoisting built-in motors (140 to 140c) by the control of the controller (180), the stator (R1 to R3) are rotated. Since the rotors R1 to R3 are fixed to the inner surface of the wire drum 130, the rotation of the wire drums 130 can be induced by the rotation of the rotors R1 to R3, It can be moved up and down.

In this embodiment, to improve the efficiency of the motor, the rotors R1 to R3 are formed of permanent magnets and the rotors R1 to R3 are rotated by the electromagnetic force from the stator S1 to S3, It is not necessary to use the speed reducer 2 (see Fig. 1) as in the past.

Next, the built-in brake 150 is built in the wire drum 130 and serves to constrain the rotation of the wire drum 130 when the stop signal is input.

The module shafts X and the center shaft 131 to which the stator S1 to S3 are coupled are not rotated but the rotors R1 to R3 are not rotated. The rotation of the wire drum 130 must be stopped by rotation of the wire drum 130 coupled with the wire drum 130. If the wire drum 130 is formed on the outside as before, In a manner to stop the motor.

The built-in brake 150 may include a brake pad 151, a lever 152, an electronic solenoid module 160, and a return spring 153.

The brake pad 151 is pressed against the inner surface of the wire drum 130 at a radially inner side of the wire drum 130 to restrict rotation of the wire drum 130. As shown in FIG. 3, the brake pads 151 may be disposed in pairs in the radially inner side of the wire drums 130.

A plurality of levers 152 are disposed radially inwardly of the wire drum 130 with the brake pads 151 interposed therebetween to movably support the brake pads 151. In the case of this embodiment, the levers 152 are disposed correspondingly to the brake pads 151 one by one.

The electronic solenoid module 160 is connected to the plurality of levers 152 and electronically drives the plurality of levers 152. The electronic solenoid module 160 may be controlled by the controller 180.

The electronic solenoid module 160 includes a module casing 161 having flanges 161a on both sides thereof and a pair of levers 161 disposed at the center of the module casing 161 and having both ends exposed to the outside of the module casing 161, A solenoid module shaft 162 coupled to the solenoid module shaft 162 and coupled to the solenoid module shaft 162 in the module casing 161 and having a coil 163 to which current is applied, And a module spring 164 coupled to the shaft 162.

The return spring 153 is connected to the plurality of levers 152 and elastically biased when the operation of the solenoid module 160 is stopped to return the plurality of levers 152 to the original position.

When the electric current flows to the coil 163 side of the electronic solenoid module 160 by the control of the controller 180, the module spring 164 is compressed and the return spring 153 pulls the lever 152, The brake pad 151 attached to the lever 152 is lifted from the inner side of the wire drum 130 so that the wire drum 130 can be rotated.

In this state, when the current is interrupted, the return spring 153 returns, and the brake pad 151 is extended to the inner side of the wire drum 130, so that the brake pad 151 presses the inner side of the wire drum 130, The driving of the motor 130 can be stopped, i.e., restrained.

In the present embodiment, the built-in brake 150 is mounted on the anchor pin 156 formed on the back plate 155, which is key-engaged with the center shaft 131, The module casing 161 can be coupled to the back plate 155 so that the lever 152 can move.

That is, the built-in brake 150 may be installed in a state where the end of the lever 152 is pin-coupled to the anchor pin 156 formed on the back plate 155 that is key-engaged with the center shaft 131.

The module casing 161 is coupled to the back plate 155 so that the lever 152 can be moved without being fixed at both ends of the lever 152, The built-in brake 150 can be mounted.

Meanwhile, the compact type hoist including the motor having the built-in hoisting facilitating capacity change according to the present embodiment may further include an input unit 170 and a controller 180 for driving the apparatus.

The input unit 170 is a means for inputting an operation or a stop signal of the hoisting built-in motors 140a to 140c. Both the wired line and the wireless line may be the target of the input unit 170. [

The controller 180 controls the operation of the built-in motors 140a to 140b and the built-in brake 150 based on the signal of the input unit 170. [

Particularly, the controller 180 controls the intensity and the direction of the current applied to the stator (S1 to S3) of the hoisting built-in motors (140a to 140c), and controls the intensity and direction of the current applied to the coil (163) side of the solenoid module Control so that a positive current flows or a current flow is interrupted.

The controller 180 in charge of this role may include a central processing unit 181 (CPU), a memory 182 (MEMORY), and a support circuit 183 (SUPPORT CIRCUIT).

The central processing unit 181 is connected to various computers 110 that can be industrially applied to control the operation of the built-in motors 140a to 140c and the built-in brakes 150 based on the signal of the input unit 170 in this embodiment. ) Processors.

The memory 182 (MEMORY) is connected to the central processing unit 181. The memory 182 may be a local or remote storage medium readable by the computer 110 and may be, for example, a random access memory (RAM), a ROM, a floppy disk, a hard disk, At least one readily available memory.

The support circuit 183 (SUPPORT CIRCUIT) is coupled with the central processing unit 181 to support the typical operation of the processor. The support circuit 183 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 180 controls the operation of the built-in motors 140a to 140c and the built-in brake 150 based on the signal of the input section 170. [ At this time, a series of processes or the like in which the controller 180 controls the operation of the built-in motors 140a to 140c and the built-in brake 150 based on the signal of the input section 170 may be stored in the memory 182 . Typically, a software routine may be stored in the memory 182. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on the computer 110 system, or in hardware such as an integrated circuit, or in a combination of software and hardware.

According to the present embodiment having the structure and operation as described above, the hoisting motor and the brake can be replaced with the hoisting-type motors 140a-140d, respectively, unlike in the past, without using the decelerator 2 (see Fig. 1) 140c and the built-in brake 150, the overall size can be reduced as well as the weight can be reduced. Further, the capacity can be varied, contributing to the manufacturing cost reduction.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

100: Compact type hoist 110: Hook
115: wire 120: frame cover
130: wire drum 131: center shaft
133: bearings 140a to 140c: motor with built-in hoist
S1 to S3: stator R1 to R3: rotor
150: Built-in brake 151: Brake pad
152: lever 153: return spring
155: back plate 156: anchor pin
160: Electronic solenoid module 161: Module casing
161a: Flange 162: Solenoid module shaft
163: coil 164: module spring
170: input unit 180: controller

Claims (5)

Hooks for hanging heavy objects;
A wire drum rotatable around the center shaft as a rotation axis, forming a place where the wire is wound or unwound for up and down movement of a wire connected to the hook;
A modular hoisting built-in motor provided with power for normal and reverse rotation of the wire drum, the modular hoisting motor being embedded in the wire drum and disposed along the center shaft; And
And a built-in brake embedded in the wire drum for restricting rotation of the wire drum when a stop signal is input,
The modular hoisting built-in motor
A stator coupled to the module shaft;
And a rotor spaced from the stator and fixed to an inner surface of the wire drum,
The center shaft being coupled to the module shaft,
Wherein the modular hoisting built-in motor is detachably coupled to a modular hoisting built-in motor provided with flanges at both ends thereof and disposed adjacent to the modular hoisting built-in motor.
delete The method according to claim 1,
Wherein the built-
A brake pad for restricting the rotation of the wire drum while being pressed against the inner surface of the wire drum at a radially inner side of the wire drum;
A plurality of brake pads disposed radially inwardly of the wire drums with the brake pads interposed therebetween for movably supporting the brake pads;
An electronic solenoid module connected to the plurality of levers and electronically driving the plurality of levers; And
And a return spring connected to the plurality of levers and biased elastically when the operation of the electronic solenoid module is stopped to return the plurality of levers to their original positions. Compact type hoist.
The method of claim 3,
In the electronic solenoid module,
Module casing;
A solenoid module shaft disposed at the center of the module casing and having both ends exposed to the outside of the module casing and coupled to the levers;
A coil coupled to the solenoid module shaft within the module casing, the coil being energized; And
And a module spring coupled to the solenoid module shaft at both sides of the coil. 2. The compact type hoist of claim 1,
The method of claim 3,
Wherein the built-in brake is coupled to an anchor pin formed on a back plate, which is key-engaged with the center shaft, while the end of the lever is pinned, and the module casing is coupled to the back plate so that the lever can be moved Compact type hoist equipped with a built-in hoist motor which is easy to change the capacity.

Images