KR20210093008A - Vibrator system - Google Patents

Abstract

The present invention provides a vibration generation system in which the amplitude of vibration is easily changed according to a user's request, durability is increased by fixing an electric wire applying AC power regardless of vibration of a vibration core, vibration efficiency of a vibration generator is optimized. According to the present invention, since a coil wound around a fixed core and an electric wire are connected when the fixed core is connected and fixed to a support plate, force is not applied to the wire during vibration so that a wire failure is prevented, thereby increasing durability. In addition, since vibration adjustment blocks are added to the upper and both sides of the vibration core, the required vibration amplitude can be easily adjusted depending on the size of the hopper or silo. In addition, since the vibration is optimized according to a vibration control signal with a resonant frequency according to an installation environment, the vibration generation system can be applied to an actual field by responding directly to a user's needs. The vibration generation system comprises a cover, a base plate, a support plate, a fixed core, and a vibration core.

Description

Vibration generating system {VIBRATOR SYSTEM}

The present invention relates to a vibration generating system, and more particularly, to a vibration generating system that is installed at an outlet portion of a hopper or silo to generate vibration to facilitate the discharge of powder.

In various production and processing systems for transporting and discharging powders or granules, powders in pipes, hoppers or silos agglomerate with each other due to moisture or static electricity, thereby significantly reducing transport efficiency.

Therefore, in order to facilitate the transfer of these powders, a vibration generating device that is installed on the outer surface of a pipe, hopper or silo to apply vibration is used. In particular, this vibration generating device is installed at the outlet of a funnel-shaped hopper or silo that discharges the powder to the outside to generate vibration to prevent clogging of the powder inside by a bottleneck phenomenon, and to smoothly transfer the powder to other processes. there is.

As a prior art related to the present invention, the electronic vibrator disclosed in Korean Patent No. 10-2014073 is a vibrator body including a core core and a winding part, a housing containing the core core and winding part, and vibration transmission blades, and a lid covering the vibrator body (Cap) and an elastic member coupled to the upper and lower portions of the vibration transmission blade, wherein the elastic member is disposed at the vertex of a polygon having a symmetrical structure having an even number of (n) sides, n = 6, 8, , Disclosed is an electronic vibrator in which the elastic member is disposed separately into a vibration transmitting group and a vibration dispersing group, wherein the spring constant of the elastic member belonging to the vibration transmitting group is greater than the spring constant of the elastic member belonging to the vibration dispersing group.

However, the prior art has a structure in which it is difficult to change the magnitude of the vibration according to the user's needs because the vibrator body having the core core and the winding part is formed of one housing and the vibration transmission blades extending from the housing. In addition, since the cable for supplying AC power to the winding part wound around the horizontally protruding part of the core that generates vibration by reciprocating up and down is connected to the inside through the handle connected to the upper part of the lid, the cable This may cause damage to the product as a whole.

1. Republic of Korea Patent Publication No. 10-2014073

The present invention has been devised to solve the above problems, and an object of the present invention is to easily change the vibration magnitude according to the user's request according to the installation environment, and the wire to which the AC power is applied regardless of the vibration of the vibration core. An object of the present invention is to provide a vibration generating device capable of improving durability by being fixed.

In order to solve the above problems, the vibration generating system according to an embodiment of the present invention outputs a vibration control signal having a predetermined frequency to a vibration generating device installed on the outer surface of a hopper or silo to generate vibration and a coil of the vibration generating device. It may include a control unit to control to do so.

'형상으로 이루어지는 중앙 돌출부분에 코일이 감겨져 있는 고정코어 및 상기 고정코어 상부에 위치하고, '

'으로 이루어져, 고정코어의 중앙 돌출부분이 삽입되는 진동코어를 포함할 수 있다. In an embodiment of the present invention, the vibration generating device includes a cover, a support connected to the cover and attached to the outside of a hopper or silo for transferring powder, a support plate connected to and fixed to the support, and supported when vibration occurs, and on the support plate connected and fixed,

'A fixed core in which a coil is wound around a central protrusion formed in the shape and located above the fixed core, '

', and may include a vibrating core into which the central protrusion of the fixed core is inserted.

In one embodiment of the present invention, it further comprises a handle 40 connected to the side of the cover and having a wire inlet formed therein, wherein the wire introduced into the inside through the wire inlet is connected to the coil wound around the fixed core. do.

In one embodiment of the present invention, the vibration core is characterized in that at least one vibration adjustment block capable of adjusting the vibration magnitude is connected to the upper portion and both sides of the vibration core case surrounding the vibration core.

In one embodiment of the present invention, a spring guide is installed on one surface of the second vibration adjustment block and the support plate to prevent contact between the inner surface of the spring and the inner surface of the central shaft during vibration, and is installed in a state spaced apart from the central axis when vibration occurs in an embodiment of the present invention. may include

In an embodiment of the present invention, the vibration generating device further includes an acceleration sensor for measuring vibration,

The control unit sequentially outputs each vibration control signal including each of the scanning frequencies f0, f1, f2...fn having a preset frequency range to the vibration generating device to the acceleration sensor Among the vibration detection signals (p1, p2, ......pn) input from , there is a point where the acceleration changes rapidly and the scanning frequency of the vibration control signal matching the vibration detection signal with the largest acceleration is set as the resonance frequency. It may further include a resonance frequency setting unit.

According to the present invention as described above, in a state in which the fixed core is connected to the support plate and fixed, the coil wound around the fixed core and the electric wire are connected, so that no force is applied to the electric wire during vibration, thereby preventing wire defects and improving durability. there is.

Vibration control blocks are added to the upper and both sides of the vibrating core to easily adjust the required vibration size according to the size of the hopper or silo, and by optimizing the vibration according to the vibration control signal with the resonant frequency according to the installation environment, the user’s It can be applied to the actual field by responding directly to the needs.

1A and 1B are external perspective views of a vibration generating device according to an embodiment of the present invention.
2 is an internal configuration diagram of a vibration generating device according to an embodiment of the present invention.
3A and 3B are exploded perspective views of a vibration generating device according to an embodiment of the present invention.
4 is a cross-sectional view of a vibration generating device according to an embodiment of the present invention.
5 and 6 are views for explaining a core part for generating vibration of the vibration generating device according to an embodiment of the present invention.
7 is a view for explaining a structure for preventing wear due to contact during vibration between the shaft and the spring according to an embodiment of the present invention.
8 is a block diagram of a vibration generating system for outputting a control signal to a vibration generating device and setting a resonance frequency according to an embodiment of the present invention.

The detailed description below is merely an example, and only shows an embodiment of the present invention. In addition, the principles and concepts of the present invention are provided for the most useful and easy to understand purposes.

Accordingly, it is not intended to provide a detailed structure more than necessary for a basic understanding of the present invention, and, of course, various forms that can be implemented in the substance of the present invention by those of ordinary skill in the art are illustrated through the drawings.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B are external perspective views of a vibration generating device according to an embodiment of the present invention.

As shown in FIGS. 1A and 1B , the vibration generating device 100 includes a cover 10 , a pedestal 30 connected to the cover and attached to the outside of a hopper or silo that transports powder, and is connected to the pedestal and fixed It may include a support plate 20 for supporting when vibration is generated, and a handle 40 connected to the side of the cover to form a wire inlet.

The cover 10 prevents the inflow of foreign substances into the vibration generating device, and the flange 52 of the cover may be connected to the support plate 20 and the pedestal 30 through screw coupling. In the cover 10 , a joint block 50 connecting the body 51 and the flange 52 may be formed in order to prevent cracks between the body 51 and the flange 52 of the cover by vibration. Although not shown, when connecting the flange 52, the support plate 20, and the pedestal 30 of the cover, an O-ring is inserted between each to prevent water or moisture from penetrating therein.

The handle 40 may be connected to the side of the cover 10 to hold the vibration generating device by hand when transporting and installing it. The handle 40 has an opening therein so that a wire inlet 41 into which a wire capable of supplying AC power to the coil wound around the core is inserted may be formed. The vibration generating device 100 of the present invention will be described later, but a coil (not shown) is wound around a fixed core 91 (refer to FIG. 4), and the fixed core includes a fixed core case 92 surrounding the fixed core and a support plate 20 ) is connected and fixed. Through the wire inlet 41, the wire is connected to the coil wound around the fixed core. Therefore, since the electric wire does not reciprocate even when vibration is generated according to the vertical movement of the vibration core, there is no risk of bending or derailment because the electric wire does not receive force due to vibration, thereby improving the durability of the vibration generating device.

2 is an internal configuration diagram of a vibration generating device according to an embodiment of the present invention, FIGS. 3A and 3B are exploded perspective views of the vibration generating device according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention It is a cross-sectional view of a vibration generating device according to , and FIGS. 5 and 6 are views for explaining a core part for generating vibration of the vibration generating device according to an embodiment of the present invention.

'형상으로 이루어지고 중앙 돌출부분에 코일이 감겨져 코일에 전류가 인가되는 경우, 진동코어(81)에 힘을 가함으로써 진동을 발생시킬 수 있다. 고정코어(91)의 중앙 돌출부분은 코일을 감기위한 보빈(93)이 끼워질 수 있다. 상기 보빈(93)의 하부는 지지판(20) 상부와 접촉되고 진동코어(81)의 상하 운동에 의한 진동시에도 움직이지 않고 고정된다. 따라서 상기 보빈(93)에 감겨져 움직이지 않는 코일과 손잡이(40)의 전선 유입구(41)를 통하여 내부로 인입된 전선이 코일과 연결되더라도 전선은 진동에 따른 힘을 받지 않는다. 따라서 전선과 코일은 서로 단선될 위험이 전혀 없을 뿐만 아니라 전선 자체도 휘거나 구부러지는 반복적인 동작이 없음으로 기존 전선이 진동코어상에 연결되어 있는 구조에서 발생되는 전선 불량의 문제점을 원천적으로 방지할 수 있다. 2 to 6 , the support plate 20 may be connected to the fixed core case 92 and at least two or more central axes 21 . A second vibration adjustment block 70 , an upper spring 23 , and a lower spring 22 may be connected to the central shaft 21 . The fixed core 91 may be inserted into the fixed core case 92 . The fixed core 91 is '

When a current is applied to the coil as the coil is wound around the central protrusion, vibration can be generated by applying a force to the vibrating core 81 . A bobbin 93 for winding a coil may be inserted into the central protrusion of the fixed core 91 . The lower portion of the bobbin 93 is in contact with the upper portion of the support plate 20 and is fixed without moving even when the vibrating core 81 vibrates due to vertical motion. Therefore, even if the coil wound around the bobbin 93 and the wire that is brought into the inside through the wire inlet 41 of the handle 40 is connected to the coil which is not moved, the wire does not receive a force due to vibration. Therefore, there is no risk of disconnection between the wire and the coil, and there is no repeated operation of bending or bending the wire itself, so it is possible to fundamentally prevent the problem of wire defects occurring in the structure in which the existing wire is connected to the vibrating core. can

'으로 이루어져, 고정코어의 중앙 돌출부분이 삽입될 수 있다. 본원발명은 고정코어(91)는 지지판(20)에 고정되고, 고정코어에 코일이 감기고, 고정코어(91) 상부에 위치한 진동코어(81)가 상하로 움직이는 구조로 덮개(10)의 측부로부터 유입된 전선은 진동에 따른 힘을 받지 않음으로 진동에 따른 코일과의 단선 및 케이블 자체 불량을 방지할 수 있다.The vibration core 81 may be introduced into the vibration core case 82 . The fixed core 91 and the vibrating core 81 may be formed by laminating a plurality of thin metal plates. The vibrating core 81 is located above the fixed core, and '

', the central protrusion of the fixed core can be inserted. In the present invention, the fixed core 91 is fixed to the support plate 20, a coil is wound around the fixed core, and the vibrating core 81 located above the fixed core 91 moves up and down from the side of the cover 10. Since the introduced electric wire does not receive the force caused by vibration, it is possible to prevent disconnection of the coil and the cable itself due to vibration.

A second vibration adjustment block 71 capable of adjusting the magnitude of vibration may be coupled to both sides of the vibration core case 82 surrounding the vibration core through welding, riveting, screwing, or the like. On the other hand, the first vibration adjustment block 63 located on the upper part of the vibration core case 52 is screwed by a bolt (not shown) passing through the second vibration adjustment block 71 and the connection holes 64 and 75 . can be connected through

An additional vibration adjustment block may be connected to the first vibration adjustment block 63 and the second vibration adjustment block 71 to adjust the required vibration magnitude according to the size of the hopper or silo, respectively. By connecting the additional first vibration adjustment blocks 61 and 62 on the upper part of the first vibration adjustment block 63 to the connection hole 64 through screw coupling, weight is added during the vertical movement of the vibration core to generate a larger vibration magnitude. can do.

The vibration core case 82 has two vibration adjustment blocks 71 on both sides, and a lower spring 22 and an upper spring 23 fitted with additional second vibration adjustment blocks 72 and 73 on the central shaft 21 . By being connected through the vibration core, it is possible to generate a larger vibration magnitude by adding weight to the vibration core during vertical movement. Although it is illustrated that three of the vibration adjustment blocks 60 and 70 are stacked, a plurality of vibration adjustment blocks may be stacked according to the required vibration magnitude without being limited thereto.

The second vibration adjustment block 70 may be connected to the central shaft 21 coupled to the support plate 20 . The vibration adjustment block 70 is a force applied to the vibration core by the lower spring 22 and the upper spring 23 located on the upper side and the lower spring 22 located on the lower side with respect to the second vibration adjustment block 70 and fitted on the central shaft 21 . The elastic force of each of the springs 22 and 23 may be added to generate vibration.

7 is a view for explaining a structure for preventing wear due to contact during vibration between the shaft and the spring according to an embodiment of the present invention.

When vibration occurs, the second vibration adjustment block 73 connected to both sides of the vibration core moves in the left and right directions as well as up and down to generate vibration. Accordingly, the outer surface of the central shaft 21 and the inner surface of the lower spring 22 are worn due to contact during vibration, which acts as a factor to reduce the durability of the vibration generating device.

Referring to Figure 7, the second vibration adjustment block (73) and the spring guide (22a) which is installed spaced apart from the central axis 21 on one surface of the support plate 20 to guide the lower spring 22 when vibration is generated. can be installed. The spring guide 22a is installed in contact with only a portion of both ends of the lower spring 22, and the distance between the lower spring 22 and the central shaft 21 by the spring guide 22a is larger than the left and right vibration range. The durability of the vibration generating device can be improved by minimizing wear due to contact between the outer surface of the central shaft 21 and the lower spring 22 during vibration.

8 is a block diagram of a vibration generating system for outputting a control signal to a vibration generating device and setting a resonance frequency according to an embodiment of the present invention.

Referring to FIG. 8 , the vibration generating system 1000 is installed on the outer surface of a hopper or silo to generate vibration and output a vibration control signal having a predetermined frequency to a coil of the vibration generating device 100 and the vibration generating device. It may include a control unit 200 to control.

The controller 200 may output a vibration control signal for controlling the vibration of the vibration generating device 100 to the vibration generating device. To this end, the control unit 200 consists of a general inverter, and a converter unit that receives commercial AC power and converts it into DC, a smoothing unit that smoothes the DC rectified in the converter, and PWM control using semiconductor devices such as transistors or IGBTs for DC It may include an inverter unit for outputting a vibration control signal having a predetermined frequency and magnitude according to the method.

Meanwhile, the vibration generating device 100 may include a displacement sensor (see 85 in FIG. 4 ). The displacement sensor may be installed inside the vibration generating device. For example, it may be attached to the upper part of the vibration control block or attached to the upper part of the support plate. The displacement sensor may be an acceleration sensor, and may transmit a vibration detection signal to the controller by detecting the vibration of the vibration generating device according to the reciprocating motion of the vibration core. The vibration generating device 100 is attached to various hoppers or silos having different volumes and shapes to generate vibration, and thus the sizes and shapes of the attached hoppers or silos are different. Therefore, the resonance frequency of the vibration control signal needs to be adjusted according to the installation environment to maximize the vibration efficiency of the vibration generator.

The control unit 200 processes the vibration detection signal input from the displacement sensor 85 to set the resonance frequency setting unit 210 that can set the resonance frequency that can maximize the vibration magnitude of the vibration generating device currently installed in the hopper or silo. ) may be included. The resonance frequency setting unit 210 sequentially generates each vibration control signal including each of the scanning frequencies f0, f1, f2.....fn having a predetermined frequency range set in advance. output as The displacement sensor (acceleration sensor) continuously detects the vibration according to each of the input vibration control signals and transmits each of the vibration detection signals p1, p2, ...... pn to the control unit. The resonance frequency setting unit 210 analyzes the received vibration detection signals (p1, p2, ... pn), respectively, and there is a point where the acceleration changes rapidly and matches the vibration detection signal with the largest magnitude of the acceleration. The scanning frequency of the vibration control signal may be set as the resonance frequency.

The control unit 200 generates a vibration control signal having a resonant frequency set from the resonant frequency setting unit 210 and outputs it to the vibration generator so that the vibration generator can vibrate with vibration optimized for each installation environment. By increasing the vibration efficiency of the hopper and silo, it is possible to smoothly transfer the powder.

In the above, the present invention has been described in detail through representative embodiments, but those of ordinary skill in the art to which the present invention pertains may make various modifications to the above-described embodiments without departing from the scope of the present invention. will understand

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims described below as well as the claims and equivalents.

10: cover 20: support plate
21: central shaft 22: lower spring
22a: spring guide 23: upper spring
30: pedestal 40: handle
41: wire inlet 50: joint block
60: first vibration adjustment block 64,75: connection hole
70: second vibration adjustment block 81: vibration core
82: vibration core case 85: displacement sensor
90: core part 91: fixed core
92: fixed core case 93: bobbin
100: vibration generating device 110: displacement sensor
200: control unit 210: resonance frequency setting unit
1000: vibration generating system

Claims (5)

A vibration generating system comprising: a vibration generating device installed on the outer surface of a hopper or silo to generate vibration; and a control unit controlling to output a vibration control signal having a predetermined frequency to a coil of the vibration generating device, wherein the vibration generating device Is
cover (10),
A pedestal 30 connected to the cover and attached to the outside of a hopper or silo that transports powder,
A support plate 20 that is fixedly connected to the pedestal and supports when vibration occurs,
It is connected and fixed to the support plate 20, '

A fixed core 91 in which a coil is wound around a central protrusion formed in the shape of
Located above the fixed core, '

', and a vibration generating system including a vibrating core 81 into which the central protrusion of the fixed core is inserted.
The method of claim 1,
A vibration generating system, characterized in that it further comprises a handle (40) connected to the side of the cover and having a wire inlet formed, wherein the wire introduced into the inside through the wire inlet is connected to the coil wound around the fixed core.
The method of claim 1,
The vibration core (81) is a vibration generating system, characterized in that at least one vibration adjustment block capable of adjusting the vibration magnitude is connected to the upper and both sides of the vibration core case surrounding the vibration core.
4. The method according to any one of claims 1 to 3,
A vibration generating system further comprising a spring guide installed on one surface of the second vibration adjustment block and the support plate in a state of being spaced apart from the central axis when vibration occurs to guide the inner surface of the spring from contacting the inner surface of the central axis during vibration.
4. The method according to any one of claims 1 to 3,
The vibration generating device further comprises an acceleration sensor for measuring the vibration,
The control unit sequentially outputs each vibration control signal including each of the scanning frequencies f0, f1, f2...fn having a preset frequency range to the vibration generating device to the acceleration sensor Among the vibration detection signals (p1, p2, ......pn) input from , there is a point where the acceleration changes rapidly and the scanning frequency of the vibration control signal matching the vibration detection signal with the largest acceleration is set as the resonance frequency. Vibration generating system further comprising a resonance frequency setting unit.

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