KR102615372B1 - Vibration generator capable of adjusting amplitude of vibration sorting screen - Google Patents

Abstract

The present invention relates to a vibration generator capable of adjusting the amplitude of the vibrating sorting screen, which allows the vibration amplitude of the vibrating sorting screen to be easily adjusted according to the type of sorting target, etc., and more specifically, to connect the two side plates of the vibrating sorting screen. A vibration generating device is installed and transmits a driving force from the outside to provide vibration to the vibration sorting screen, comprising: an eccentric shaft installed to cross between both side plates of the vibration sorting screen and having an eccentric section at the center; Support parts installed on one side and the other side of the eccentric shaft, respectively, and provided with bearings that support the rotation of the eccentric shaft, and allowing the eccentric shaft to be installed on one side and the other side plate of the vibration sorting screen; A drive pulley that is coupled to one end of the eccentric shaft and is connected to a drive motor that provides rotational force by a belt so that the rotational force is transmitted to the eccentric shaft according to the operation of the drive motor; And an amplitude adjustment unit that causes a pair of vibration weights to be coupled to selected positions along the outer periphery of the eccentric shaft between one end and the other end of the eccentric shaft and the support portion to vary the center of gravity of the eccentric shaft.

Description

Vibration generator capable of adjusting amplitude of vibration sorting screen}

The present invention relates to a vibration generating device capable of adjusting the amplitude of a vibrating sorting screen, which allows the vibration amplitude of the vibrating sorting screen to be easily adjusted depending on the type of sorting target, etc.

In general, when producing aggregates using natural rocks from existing stone mountains or recycling aggregates by separating them from construction waste, the rocks or wastes are crushed with a crushing device such as a crusher or cone crusher, and then an aggregate sorting device (screen device) is used. It is used to separate the aggregate from foreign substances by passing through it.

In this type of aggregate sorting device, aggregates, etc. are put into an inclined screen having a sieve shape, and vibration is applied thereto to sort aggregates or soil, etc. into desired sizes.

For this purpose, the aggregate sorting device includes a vibration generating device to generate vibration on the screen, and the conventional vibration generating device is designed to generate vibration by processing the eccentric portion so that the eccentric portion is formed integrally with the central portion of the main shaft.

However, depending on the buffering force of the buffer spring supporting the screen and the strength of the ground on which the aggregate sorting device is installed, the actual amplitude of the rotational imbalance caused by the eccentricity of the main axis may be large or small, so the appropriate amplitude required for vibration sorting work must be maintained. In order to compensate, weights such as eccentric plates are fixedly installed on both sides of the main axis by welding or the like.

After assembly of this conventional vibration generator is completed, vibration of a certain amplitude is generated by the eccentric part of the main shaft, or is fixed at a constant rate by eccentric plates fixed to both sides of the main shaft to correct the amplitude by the eccentric part of the main shaft. Since it only generates vibration of the specified amplitude, even if the aggregate sorting device receives more than necessary load, there is a risk that the amplitude cannot be adjusted, which may have a fatal effect on the machine. In particular, the amplitude of vibration must be changed depending on the type of aggregate to be sorted. If so, there was a problem that it was difficult to deal with.

In other words, in order to change the fixed amplitude in the conventional vibration generator, the eccentric plates welded on both sides of the spindle with the eccentric portion in the center are eccentrically machined and replaced, or the vibration generator is installed to reprocess or replace the eccentric portion of the spindle itself. Because it had to be completely disassembled, this had the problem of causing a significant loss of time and money in repair and maintenance.

Republic of Korea Patent No. 10-1154854

Therefore, the present invention was developed to solve the above-mentioned problems, and the vibration width of the vibrating sorting screen can be easily adjusted to provide appropriate vibration according to the load level of the device or the type and input amount of the sorting target, thereby preventing device failure. The purpose is to provide a vibration generator capable of adjusting the amplitude of a vibrating sorting screen that can improve reduction and sorting efficiency.

As a means to solve the above-mentioned problems, a vibration generator capable of adjusting the amplitude of the vibration screening screen of the present invention (hereinafter referred to as "device of the present invention") is installed to connect both side plates of the vibration screening screen and emits electricity from the outside. A vibration generating device that transmits a driving force to provide vibration to the vibration sorting screen, comprising: an eccentric shaft installed to cross between both side plates of the vibration sorting screen and having an eccentric section at the center; Support parts installed on one side and the other side of the eccentric shaft, respectively, and provided with bearings that support the rotation of the eccentric shaft, and allowing the eccentric shaft to be installed on one side and the other side plate of the vibration sorting screen; A drive pulley that is coupled to one end of the eccentric shaft and is connected to a drive motor that provides rotational force by a belt so that the rotational force is transmitted to the eccentric shaft according to the operation of the drive motor; And an amplitude adjustment unit that causes a pair of vibration weights to be coupled to selected positions along the outer periphery of the eccentric shaft between one end and the other end of the eccentric shaft and the support portion to vary the center of gravity of the eccentric shaft.

As an example, the amplitude adjustment unit has a through hole formed in the center, the eccentric shaft is inserted and penetrated, and the eccentric shaft is coupled to one side and the other side of the eccentric shaft with a key, and a plurality of first fastening holes are formed at equal intervals. A fixture in which a fastening flange is provided on the outer periphery, a fastening ring in which the outer diameter of the fastener is inserted and penetrated and a plurality of second fastening holes are formed at a position opposite to the first fastening hole, and a fan shape on the outer periphery of the fastening ring. It is composed of a weight plate that is coupled and is characterized by including a pair of oscillating weights fastened through bolting at selected positions on one side and the other side of the fastening flange, respectively.

As an example, when two or more vibration generating devices are provided, a timing pulley is coupled to the other end of the eccentric shaft and connected to each other through a timing belt.

As an example, the driving pulley and the timing pulley have an insertion hole formed in the center into which the outer diameter portion of the fixture is inserted, and a plurality of third fastening holes are formed at a position opposite to the first fastening hole and spaced apart from the periphery of the insertion hole. It is characterized by being fastened to the fastening flange of the fixture with the pair of vibrating weights through bolting.

As an example, a plurality of long holes are formed in opposing positions on the weight plate of each vibrating weight, and the driving pulley protrudes from its outer surface, and each vibrating weight is inserted into the opposing long hole with its position adjusted to cause each vibration. It is characterized by the addition of a temporary fixing bar that can fix the weight.

As an example, a spacer pipe has a hollow space and is installed between the supports to accommodate the eccentric shaft; and a pipe protector coupled to the outer periphery of the spacer pipe to protect the spacer pipe.

In this way, according to the device of the present invention, the vibration width is selectively increased or decreased by changing the assembly position of the pair of vibrating weights, and the vibration width is selectively increased or decreased depending on the load level of the device or the type and input amount of the sorting target. Appropriate vibration can be provided.

Accordingly, not only can the occurrence of device failures due to fixed vibration amplitudes be reduced, but there is no need to re-manufacture, replace, or add oscillating weights to respond to various amplitude requirements. It has the effect of reducing costs, enabling efficient operation of the vibrating sorting screen, and improving sorting efficiency.

Figure 1a is a side view showing a vibrating screening screen according to an embodiment of the present invention.
Figure 1b is a side view showing a vibrating screening screen according to another embodiment of the present invention.
Figure 2 is a plan view showing a vibrating screening screen according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view showing the configuration of a device according to an embodiment of the present invention.
Figure 4 is a perspective view showing the coupling structure of the vibration control unit according to an embodiment of the present invention.
Figure 5 is a diagram showing the amplitude increase/decrease state according to the coupling position of the oscillating weight according to an embodiment of the present invention.
Figure 6 is a perspective view showing the coupling structure of the vibration control unit according to another embodiment of the present invention.
Figure 7 is a diagram showing a state in which a vibrating weight is temporarily fixed according to the embodiment shown in Figure 6.

In describing the present invention, the terms and words used in the specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to explain the invention in the best way. It must be interpreted with meaning and concepts consistent with the technical ideas of.

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

Referring to FIGS. 1A and 2, the device 10 of the present invention relates to a vibration generating device for applying vibration to a vibration screening screen 1 that sorts aggregates by particle size. ) is installed to connect the two side plates (4), and a driving force is transmitted from the outside to provide vibration to the vibrating screening screen (1).

At this time, as shown in Figure 1a, the device 10 of the present invention is installed to pass horizontally between both side plates 4 of the vibrating screening screen 1, or has a unitized structure as shown in Figure 1b. It may be assembled between the two side plates (4) at the top of the vibrating screening screen (1). 2 and 3, the structure in which the device 10 of the present invention is installed horizontally penetrating between both side plates 4 of the vibrating screening screen 1 will be described as an example.

In addition, the vibrating screening screen (1) can be fixedly installed at the upper part spaced from the ground by a plurality of frame members (2) and spring members (3), and is a screen network installed inclined in multiple stages between both side plates (4). (5) is provided to select aggregates moving on the screen net (5) according to the desired particle size according to the vibration provided by the device (10) of the present invention.

Since the detailed structure and coupling relationship of the vibrating screening screen 1 can be implemented in various ways through known techniques, detailed descriptions will be omitted.

The device 10 of the present invention is configured to selectively adjust the vibration width without replacing or additionally installing the vibrating weight according to the type of the sorting target, etc. when applying vibration to the vibrating sorting screen 1.

Specifically, the device 10 of the present invention includes an eccentric shaft 100, a support portion 200, a driving pulley 300, and an amplitude adjustment portion 400, as shown in FIG. 3.

The eccentric shaft 100 is installed to cross between both side plates 4 of the vibrating screening screen 1, and an eccentric section 110 is provided in the center. That is, the eccentric shaft 100 rotates by receiving rotational force from the driving pulley 300, which will be described below, and as the eccentric section 110 is provided in the center of the shaft, eccentric movement is performed during rotation, thereby imparting vibration. I do it.

The support portion 200 supports the eccentric shaft 100 so that it can rotate eccentrically and transmits vibration generated from the eccentric shaft 100 to the vibration screening screen 1.

The support portion 200 may be installed on one side and the other side of the eccentric shaft 100, and is provided with a bearing 210 that supports rotation of the eccentric shaft 100 and is provided on one side of the vibration screening screen 1. And the eccentric shaft 100 can be installed on the other side plate 4.

As an example, the support portion 200 is configured to respectively surround the outer periphery of one side and the other side of the eccentric shaft 100 and includes a bearing 210 that supports the eccentric shaft 100 so that it can rotate, and the bearing 210 ), a bearing housing 220 mounted to accommodate the bearing housing 220, a housing cover 230 coupled to the inner and outer sides of the bearing housing 220, and a vibration screening screen ( It may be configured to include a spacer flange 240 to which the side plate 4 of 1) is coupled.

The drive pulley 300 is coupled to one end of the eccentric shaft 100 and is connected to a drive motor 6 that provides rotational force and a belt 310, so that the rotational force is applied to the eccentric shaft according to the operation of the drive motor 6. Let it be delivered to (100).

The drive motor 6 may be fixed to a support installed on the side plate 4 of the vibrating screening screen 1, or may be fixed to an upright frame separately provided adjacent to the side plate 4.

At this time, the driving pulley 300 may be a V-belt pulley, and the belt 310 may be a V-belt.

The amplitude adjustment unit 400 allows a pair of vibration weights 440 to be coupled to selected positions along the outer periphery of the eccentric shaft 100 between one and the other end of the eccentric shaft 100 and the support portion 200. Thus, the center of gravity of the eccentric shaft 100 can be varied.

As shown in FIG. 4, the amplitude adjustment unit 400 according to an embodiment of the present invention includes a fixture 410 that is fixedly installed on the eccentric shaft 100 and rotationally interlocked, and an inner and outer surface of the fixture 410. It may be configured to include a pair of vibrating weights 440 that are each coupled to the side and are coupled to selected positions along the outer periphery of the fixture 410.

First, the fixture 410 has a tubular shape with a through hole 411 formed in the center, and the eccentric shaft 100 is inserted and penetrated through the through hole 411. In addition, the fixture 410 can be coupled and fixed to one side and the other side of the eccentric shaft 100 by a key 430, and a plurality of first fastening holes 421 are formed at equal intervals. A flange 420 is provided on the outer periphery to form seating spaces 412 on the outside and inside of the fastening flange 420, respectively.

The pair of oscillating weights 440 may be placed in the outer and inner seating spaces 412 formed by the fastening flange 420 of the fixture 410, respectively.

As an example, the vibrating weight 440 is a fastening ring 450 through which the outer diameter of the fixture 410 is inserted and penetrated, and a plurality of second fastening holes 451 are formed at a position opposite to the first fastening hole 421. ) is configured so that the second fastening hole 451 of the fastening ring 450 can face the first fastening hole 421 of the fastening flange 420 when placed in the seating space 412. .

In addition, the vibrating weight 440 is further composed of a weight plate 460 coupled to the outer periphery of the fastening ring 450 in a fan shape, and is positioned at selected positions on one side and the other side of the fastening flange 420, respectively. It can be coupled through bolt fastening between the first fastening hole 421 and the second fastening hole 451.

That is, the amplitude adjusting unit 400 changes the coupling angle of the oscillating weight 440 coupled to the fixture 410, thereby changing the distance of the center of gravity, thereby increasing or decreasing the amplitude of vibration.

For example, as shown in FIG. 5, in a combined state in which a pair of oscillating weights 440 are aligned at the same position toward the lower side of the fixture 410, the amplitude of vibration increases as the center of gravity is concentrated at the bottom. Conversely, in the case where the pair of oscillating weights 440 rotate in opposite directions in the fixture 410 and are mutually unfolded, the center of gravity is radially distributed and the amplitude of vibration is reduced.

And in this embodiment, the driving pulley 300 has an insertion hole 301 formed in the center into which the outer diameter portion of the fixture 410 is inserted, and is spaced apart from the periphery of the insertion hole 301 and the first fastening hole ( A plurality of third fastening holes 302 may be formed at positions opposite to 421).

The driving pulley 300 having this structure may be fastened to the fastening flange 420 of the fixture 410 together with the pair of oscillating weights 440 through bolting.

In addition, the end of the eccentric shaft 100 exposed by the insertion hole 301 of the driving pulley 300 can be closed by a finishing cover 320, and the finishing cover 320 is connected to the insertion hole 301. It can be in contact with the end of the eccentric shaft 100 and can be coupled to the eccentric shaft 100 through bolt fastening.

In this way, in the present invention, when assembling a pair of oscillating weights 440 with bolts, the amplitude of vibration due to rotation of the eccentric shaft 100 can be easily adjusted through a simple position change, so that the vibration width is adjusted to respond to various amplitude requirements. There is no need to remanufacture, exchange, or add weights, thereby reducing device manufacturing costs, enabling economical and efficient operation of the device.

Meanwhile, the device 10 of the present invention can be applied to a twin drive method in which two or more vibrating screening screens 1 are provided, as shown in FIG. 3.

In this case, the device 10 of the present invention may further include a timing pulley 500 coupled to the other end of the eccentric shaft 100.

The timing pulley 500 connects the timing pulleys 500 of adjacent devices 10 with a timing belt 510 to enable the eccentric shafts 100 to rotate at a uniform rotation speed.

That is, the timing pulley 500 is installed when the device 10 of the present invention is a twin drive type in which two or more vibration screening screens 2 are provided. This timing pulley 500 is also installed as the above-described driving pulley ( It is natural that it may have the same bonding structure as 300).

Meanwhile, the device 10 of the present invention includes a spacer pipe 600 that has a hollow space and is installed to accommodate the eccentric shaft 100 between the supports 200 to protect the eccentric shaft 100 from external shock, and It may further include a pipe protector 700 that is coupled to the outer periphery of the spacer pipe 600 and protects the spacer pipe 600.

The spacer pipe 600 is installed to accommodate the eccentric shaft 100 exposed between both supports 200, and is provided with a spacer flange 240 for coupling to the side plate 4 of the vibration screening screen 1. ) can be supported and fixed by.

In addition, the pipe protector 700 is configured to surround the entire outer periphery of the spacer pipe 600, or is located at a location where aggregate falling during the selection process can easily hit, for example, outside the upper end of the spacer pipe 600. It may consist only of the main characters.

Preferably, the pipe protector 700 is in the form of an elastic pad and is attached to the outer periphery of the spacer pipe 600 to physically protect the spacer pipe 600 and relieve and absorb the impact.

Meanwhile, in the present invention, an embodiment for easily adjusting the installation angle of the vibration weight 440 in the amplitude adjustment unit 400 is shown in FIGS. 6 and 7.

When the weight of the oscillating weight 440 is large, it is not easy to bolt each pair of oscillating weights 440 through each through hole while manually manipulating each pair. In the following embodiments, bolting can be done in stages. This is to ensure ease of fastening.

For this purpose, in this embodiment, a plurality of long holes 461 are formed at opposing positions in the weight plate 460 of each vibrating weight 440, and the driving pulley 300 protrudes from the outer surface and each vibrating weight ( 440 is characterized in that a temporary fixing bar 303 is further configured to be inserted into the opposing long hole 461 in a state in which the position is adjusted to fix each vibrating weight 440.

In the pair of vibrating weights 440, a plurality of long holes 461 are formed at opposing positions in each weight plate 460. It is reasonable that the long hole 461 is formed to be the same as the curvature of the weight plate 460.

The temporary fixing bar 303 is formed on the outer surface of the driving pulley 300, and as shown in the drawing, is preferably located at the lower side of the third fastening hole 302 and opposite to the long hole 461. Make it protrude.

Configured in this way, as shown in FIG. 7, each vibration occurs with a fixture 410 on the eccentric shaft 100 and a pair of vibration weights 440 placed on the inner and outer surfaces of the fixture 410. After adjusting the weight 440 to the desired angle, the temporary fixing bar 303 is inserted into the opposing long hole 461 of each oscillating weight 440 in the driving pulley 300. is placed on the eccentric shaft 100.

In this way, each oscillating weight 440 is primarily fixed in a state where the angle is adjusted. By this fixation, as shown in FIG. 7, each oscillating weight 440 is inserted into the long hole 461 into which the temporary fixing bar 303 is inserted. ), making it possible to adjust the angle within the range.

Thereafter, the position of each oscillating weight 440 is finely adjusted so that the driving pulley 300, the pair of oscillating weights 440, and the fixture 410 are coupled through bolting as mentioned above. In other words, it is ensured that it is completely fixed secondarily.

As seen above, in the case of this embodiment, temporary fixation is performed to first roughly adjust the angle, and then secondarily fine adjustment is performed to accurately adjust the angle to achieve final bolting, thereby forming a pair of vibrating weights (440). ) can be mounted while easily adjusting the angle on the fixture 410, etc.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also possible. falls within the scope of rights.

1: Vibration screening screen 2: Frame member
3: spring member 4: side plate
5: Screen network 6: Drive motor
10: Device of the present invention
100: Eccentric axis 110: Eccentric section
200: support 210: bearing
220: Bearing housing 230: Housing cover
240: Spacer flange 300: Driving pulley
320: Finishing cover 400: Amplitude adjustment unit
410: fixture 420: fastening flange
430: Key 440: Oscillating weight
450: Fastening ring 460: Weight plate
500: Timing pulley 600: Spacer pipe
700: Pipe protector

Claims (6)

In the vibration generating device, which is installed to connect the two side plates of the vibration screening screen and transmits a driving force from the outside to provide vibration to the vibration screening screen,
An eccentric shaft installed to cross between both side plates of the vibrating sorting screen and having an eccentric section at the center;
Support parts installed on one side and the other side of the eccentric shaft, respectively, and provided with bearings that support the rotation of the eccentric shaft, and allowing the eccentric shaft to be installed on one side and the other side plate of the vibration sorting screen;
A drive pulley that is coupled to one end of the eccentric shaft and is connected to a drive motor that provides rotational force by a belt so that the rotational force is transmitted to the eccentric shaft according to the operation of the drive motor; and
An amplitude adjustment unit that causes a pair of vibration weights to be coupled to selected positions along the outer periphery of the eccentric shaft between one end and the other end of the eccentric shaft and the support portion to vary the center of gravity of the eccentric shaft;
The amplitude adjustment unit,
A through hole is formed in the center, the eccentric shaft is inserted and penetrated, and the fastening flange is coupled to one side and the other side of the eccentric shaft with a key, respectively, and a plurality of first fastening holes are formed at equal intervals. A fastening flange is provided on the outer periphery, and , a fastening ring through which the outer diameter of the fixture is inserted and penetrated and a plurality of second fastening holes are formed at a position opposite to the first fastening hole, and a weight plate coupled to the outer periphery of the fastening ring in a fan-shaped shape, and the fastening flange. A vibration generating device capable of adjusting the amplitude of a vibration screening screen, comprising a pair of vibrating weights fastened through bolting at selected positions on one side and the other side of the screen.
delete According to clause 1,
When two or more vibration generating devices are provided, a timing pulley is coupled to the other end of the eccentric shaft and connected to each other through a timing belt. A vibration generating device capable of adjusting the amplitude of the vibration sorting screen, characterized in that it further includes.
According to clause 3,
The driving pulley and timing pulley,
An insertion hole into which the outer diameter portion of the fixture is inserted is formed in the center, and a plurality of third fastening holes are formed at a position opposite to the first fastening hole and spaced apart from the circumference of the insertion hole to fasten the fixture with the pair of vibrating weights. A vibration generator capable of adjusting the amplitude of a vibration screening screen, which is fastened to a flange by bolting.
According to clause 4,
A plurality of long holes are formed in opposing positions on the weight plate of each oscillating weight, and the driving pulley protrudes from its outer surface and can be inserted into the opposing long hole with the position of each oscillating weight adjusted to fix each oscillating weight. A vibration generator capable of adjusting the amplitude of the vibration screening screen, characterized in that it further consists of a temporary fixing bar.
According to clause 1,
a spacer pipe having a hollow spacer installed between the supports to accommodate the eccentric shaft; and
A vibration generator capable of adjusting the amplitude of the vibration screening screen, further comprising a pipe protector coupled to the outer periphery of the spacer pipe to protect the spacer pipe.

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