KR102562611B1 - Engine pulley structure - Google Patents

Abstract

The present invention relates to an engine pulley structure, comprising: a pulley unit capable of transmitting power by being connected to a crank pulley of an engine; and a protective washer part formed on one side of the pulley part and coupled to a disc hub part interlocked with the pulley part.

Description

Engine pulley structure {ENGINE PULLEY STRUCTURE}

The present invention arranges a washer capable of preventing direct contact with the hub on a pulley applied to the engine to prevent corrosion due to a potential difference between the pulley and the hub, and by applying a coating material to prevent contact to the hub in contact with the washer, It relates to an engine pulley structure capable of more stably preventing corrosion due to a potential difference.

In general, a compressor used as a vehicle air conditioner performs functions of sucking vaporized refrigerant in an evaporator, compressing the sucked refrigerant, and discharging the compressed refrigerant.

As an example of such a compressor, there is a compressor employing a pulley assembly omitting an electronic clutch for connecting and blocking power of a vehicle engine.

When the electronic clutch is omitted from the pulley assembly, it is advantageous in that it is possible to eliminate the occupant's discomfort due to shock during on/off, which is a disadvantage of the electronic clutch.

In general, since the compressor always transmits the power of the engine, the pumping capacity can be varied according to the cooling load of the vehicle air conditioner.

A pulley assembly applied to a conventional compressor is composed of a pulley rotating by receiving power from an engine of a vehicle and a hub assembly transmitting rotational force of the pulley to a drive shaft of the compressor.

Therefore, when the pulley rotates, the rotational force is transmitted to the drive shaft of the compressor by the hub assembly to drive the compressor.

In addition, power is transmitted from the vehicle engine through the unwinding belt.

Specifically, the hub assembly includes an inner hub disposed on one side of the pulley and connected to the drive shaft of the compressor, an outer hub connected to the inner hub and rotating, and a compressor in an inoperable state. It consists of a limiter connected between the inner hub and the outer hub to break.

The hub assembly constructed as described above serves as a medium that allows the drive shaft of the compressor to rotate in conjunction with the rotational force of the pulley.

Therefore, the compressor operates to supply refrigerant by the rotational force of the pulley.

On the other hand, when the compressor is in an inoperable state, the limiter of the hub assembly is broken to cut off power transmitted from the pulley to the drive shaft, thereby preventing damage to other components (belts) interlocking with the compressor or engine overload.

However, in the prior art, since the pulley and the hub assembly are coupled to be in direct contact, there is a problem in that abrasion, corrosion, and the like occur due to a potential difference when the pulley and the hub assembly are rotated.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for derivation of the present invention or acquired in the process of derivation of the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention. .

Korean Patent Registration No. 10-0435967

In the present invention, a washer capable of preventing direct contact with a hub is placed on a pulley applied to an engine to prevent corrosion due to a potential difference between the pulley and the hub, and a coating material for preventing contact is applied to the hub in contact with the washer. , To provide an engine pulley structure capable of more stably preventing corrosion due to a potential difference.

In addition, by generating vibration in the pulley to remove dust and other foreign substances attached to the outer and inner surfaces of the pulley, problems such as damage and wear to the belt mounted on the pulley are prevented from occurring Provide an engine pulley structure that can prevent do.

In addition, by scraping the belt groove formed at regular intervals on the outer surface of the pulley to remove dust and other foreign substances once more, an engine that can more reliably prevent problems such as damage and wear to the belt mounted on the pulley A pulley structure is provided.

In addition, by scraping the inner surface of the pulley to remove dust and other foreign substances once more, it is possible to prevent dust and various foreign substances attached to the inner surface of the pulley from being transferred to the outer surface of the pulley or spreading in the engine room, and a clean pulley It provides an engine pulley structure capable of providing.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

An engine pulley structure according to an embodiment of the present invention includes a pulley unit capable of transmitting power by being connected to a crank pulley of an engine; and a protective washer part formed on one side of the pulley part and coupled to a disc hub part interlocked with the pulley part.

And, a corrosion protection part formed by coating on one surface of the protection washer part or one surface of the disk hub part is further included.

In addition, the pulley unit further includes a removal unit for generating vibration in the pulley unit to remove foreign substances before being connected to the crank pulley of the engine, wherein the removal unit has an accommodation space in which the pulley unit is accommodated, and a bottom surface A box portion having a discharge hole for discharging foreign substances removed from the pulley portion; a support portion supporting one side and the other side of the bottom surface of the box portion, respectively; a seating portion disposed between the support portions and spaced apart from the discharge hole at a predetermined interval; a first mounting block mounted on an inner periphery of the pulley unit located in the accommodating space and protruding upward from the upper side of the pulley unit; a rotation guide bar coupled to an upper surface of the first mounting block and rotating the first mounting block and the pulley in left and right directions; first and second collision plates disposed on one side and the other side of the pulley, respectively; coil springs respectively coupled to one side surfaces of the first collision plate and the second collision plate; a fixing bar fixed to an inner wall surface of the box part and to which a coil spring coupled to the first collision plate is fixed; a moving bar to which a coil spring coupled to the second collision plate is fixed; a first solenoid for moving the moving bar forward and backward at predetermined time intervals so that the pulley part repeatedly collides with the first and second collision plates to generate vibration; And it is seated on the upper surface of the seating part and positioned on a vertical line with the discharge hole, and discharges foreign substances separated from the pulley part due to the pulley part colliding with the first collision plate and the second collision plate to the outside of the box part. includes fans.

And, the belt grooves disposed on one side of the removal unit, formed on the circumferential surface of the pulley unit, and disposed to be spaced apart from each other at regular intervals along the longitudinal direction of the pulley unit. Remove foreign substances by scraping the belt grooves, respectively. And further comprising an external scraper portion, the external scraper portion, a second mounting block mounted on the inner periphery of the pulley portion; a motor for providing power to the second mounting block so that the pulley rotates in one direction; First operating bars accommodated in the belt grooves and having a plurality of first brushes formed at regular intervals on one surface thereof to scrape the outer surface of the pulley part rotated by the rotation of the motor in contact with the outer surface of the pulley part; a first connection bar integrally connecting the first operation bars; a second solenoid that repeatedly advances and reverses the first connection bar so that the first brush scrapes an outer surface of the pulley part rotated by the motor; a first forward/backward drive cylinder for moving the first connecting bar forward/backward so as to accommodate or disengage the first operating bar from the belt groove; It is disposed to face the first actuation bar with the pulley part interposed therebetween, and after the first actuation bar is separated from the belt groove by the first forward and backward driving cylinders, it is accommodated in the belt groove, one side and the other side a second operation bar in which second brushes scraping one side of different gear teeth are formed at regular intervals; a second connecting bar integrally connecting the second operating bars; a third solenoid that repeatedly moves the second connection bar forward and backward so that the second brush scrapes one side surface of the gear tooth on the pulley part rotated by the motor; and a second forward/backward drive cylinder for moving the second connecting bar forward or backward so as to accommodate or disengage the second operating bar from the belt groove.

In addition, it is disposed on one side of the external scraper unit, and includes an internal scraper unit for scraping an inner circumference of the pulley unit to remove foreign substances, and the internal scraper unit includes a mounting cap mounted on an outer circumference of one side of the pulley unit; an additional motor providing power to the mounting cap so that the pulley rotates in one direction; a third operating bar facing the mounting cap with the pulley interposed therebetween, accommodated in an inner space of the pulley, and having a plurality of third brushes formed at regular intervals on an outer circumference of the pulley to scrape an inner circumference of the pulley; a fourth solenoid that repeatedly advances and reverses the third operation bar on the inner space of the pulley unit so that the third brush scrapes the inner periphery of the pulley unit rotated by the additional motor; and a lifting cylinder that raises or lowers the fourth solenoid to accommodate or release the third operation bar into the inner space of the pulley unit.

According to one aspect of the present invention described above, by disposing a washer capable of preventing direct contact with the hub on a pulley applied to an engine, corrosion due to a potential difference between the pulley and the hub is prevented, and contact with the hub in contact with the washer is prevented By applying a coating material for, there is an effect of preventing corrosion due to a potential difference more stably.

In addition, by generating vibration in the pulley to remove dust and other foreign substances attached to the outer and inner surfaces of the pulley, problems such as breakage and abrasion of the belt mounted on the pulley can be prevented from occurring.

In addition, by scraping the belt grooves formed at regular intervals on the outer surface of the pulley to remove dust and other foreign substances once more, problems such as damage and wear to the belt mounted on the pulley are prevented more reliably. there is

In addition, by scraping the inner surface of the pulley to remove dust and other foreign substances once more, it is possible to prevent dust and various foreign substances attached to the inner surface of the pulley from being transferred to the outer surface of the pulley or spreading in the engine room, and a clean pulley There is an effect that can provide.

Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.

1 is a perspective view showing an engine pulley structure according to an embodiment of the present invention;
2 is a cross-sectional view showing an engine pulley structure according to an embodiment of the present invention.
3 is a view showing a removal part applied to an engine pulley structure according to an embodiment of the present invention;
4 is a front view showing an external scraper applied to an engine pulley structure according to an embodiment of the present invention;
5 is a plan view showing an external scraper applied to an engine pulley structure according to an embodiment of the present invention.
6 is a front view illustrating a state in which a first operating bar applied to an engine pulley structure according to an embodiment of the present invention is applied to a pulley part;
7 is a front view illustrating a state in which a second operating bar applied to an engine pulley structure according to an embodiment of the present invention is applied to a pulley part;
8 is a view showing an internal scraper applied to an engine pulley structure according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of illustration, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable one skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in another embodiment without departing from the spirit and scope of the invention in connection with one embodiment. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

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

1 is a perspective view showing an engine pulley structure according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an engine pulley structure according to an embodiment of the present invention, and FIG. 4 is a front view showing an external scraper applied to the engine pulley structure according to an embodiment of the present invention, and FIG. 5 is an engine pulley according to an embodiment of the present invention. 6 is a plan view showing an external scraper applied to a structure, and FIG. 6 is a front view showing a state in which a first operating bar applied to an engine pulley structure according to an embodiment of the present invention is applied to a pulley, and FIG. 7 is an embodiment of the present invention. A front view showing a state in which a second operating bar applied to an engine pulley structure according to an example is applied to a pulley unit, and FIG. 8 is a view showing an internal scraper unit applied to an engine pulley structure according to an embodiment of the present invention.

An engine pulley structure 1 according to an embodiment of the present invention includes a pulley part 10, a protection washer part 20, a corrosion protection part 30, a removal part 40, and an external scraper part ( 50) and at least one or more of the internal scraper unit 60.

The pulley unit 10 is interlocked with the disk hub unit 2 and is connected to a crank pulley of an engine to transmit power.

The disk hub serves as a power transmission medium for transmitting driving force generated in the process of rotating together with the pulley unit 10 to the drive shaft of the compressor.

To this end, the disk hub unit 2 has some components installed on the protection washer unit 20 integrally formed with the pulley unit 10 and other components installed on the drive shaft of the compressor.

At this time, other parts of the disc hub unit 2 are installed on the driving shaft of the compressor in the inner space of the pulley unit 10 .

Since the method in which the disk hub unit 2 is installed on the driving shaft is a commercialized technology, a detailed description thereof will be omitted.

Also, since the method in which the disk hub portion 2 is coupled to the protection washer portion 20 is the same as the conventional method in which the disk hub portion 2 is coupled to the pulley portion 10, a detailed description thereof will be omitted.

Also, gear teeth 11 are formed on the outer periphery of the pulley unit 10 . The gear teeth 11 form a belt groove 10a in which a belt for power transmission is mounted, and a plurality of gear teeth are spaced apart from each other at a predetermined interval so that a plurality of belts can be mounted.

That is, belt grooves 10a are formed between the gear teeth 11, respectively, and the belt can be mounted in the desired belt grooves 10a.

The pulley part 10 is rotatable by being connected to a belt, and when power is applied to the clutch, a driving shaft is connected to transmit the driving force of the engine to a compressor (not shown), and a belt groove 10a is formed on the outer periphery and transmits engine power to the valve.

The disk hub portion 2 is slidably coupled to the driving shaft in the axial direction, is installed inside the pulley portion 10, is formed in a cylindrical shape, and has different outer diameters on both sides in the longitudinal direction.

The protection washer unit 20 is integrally formed on one side of the pulley unit 10 .

The protective washer part 20 has a recessed structure, and a contact surface part 21 in contact with the disk hub part 2 is formed.

A plurality of fastening holes 20a are formed in the contact surface portion 21 at regular intervals so as to be coupled with some components of the disk hub portion 2 through bolts or pins.

Some components of the disk hub portion 2 are combined with some components.

As the disc hub part 2 is prevented from directly contacting the pulley part 10 through the protection washer part 20, corrosion and abrasion of the pulley part 10 due to a potential difference are prevented to prevent the pulley part ( 10) and the life of the disk hub unit 2 can be extended.

The anti-corrosion part 30 is formed by coating on one surface of the disk hub part 2 in contact with the protection washer part 20 .

For example, the anti-corrosion part 30 may be applied with at least one of paint, grease, and a known coating agent capable of being coated on and protecting metals in contact with each other.

As another example, the anti-corrosion part 30 is made of rubber or silicon, and may have a cap-shaped structure so as to be mounted on one surface of the disk hub.

The corrosion preventing part 30 prevents the disc hub part 2 from directly contacting the protective washer part 20 to prevent corrosion and abrasion due to a potential difference, thereby preventing the disc hub part 2 and the protective washer part ( 20) can be extended.

At this time, the anti-corrosion part 30 may be applied to at least one or more of the protection washer part 20 and the disk hub part 2 .

Meanwhile, the removal unit 40 is configured to remove various foreign substances such as dust and oil from the pulley unit 10 before connecting the pulley unit 10 to the crank pulley of the engine.

At this time, the disk hub portion 2 is not coupled to the pulley portion 10 .

The removal part 40 includes the box part 41, the support part 42, the seating part 43, the first mounting block 44, the rotation guide bar 45, the first and second collision plates, , A coil spring, a fixed bar 49, a moving bar 40a, a first solenoid 40b, and a discharge unit.

The removal unit 40 is disposed outdoors or inside a workshop.

The upper surface of the box portion 41 is open, and an accommodation space in which the pulley unit 10 is accommodated is formed.

A discharge hole 41a is formed on the bottom surface of the box portion 41 to discharge foreign substances removed from the pulley portion 10 .

The support part 42 is composed of two pairs and supports one side and the other side of the bottom surface of the box part 41, respectively.

Due to the support part 42, the box part 41 can be separated from the ground by a predetermined interval.

The seating portion 43 is disposed between the support portions 42 and is spaced apart from the discharge hole 41a at a predetermined interval.

The first mounting block 44 is formed in a circular block shape and is mounted in an interference-fitting manner to the upper portion of the inner space of the pulley unit 10 accommodated in the accommodation space, and the upper side protrudes upward from the pulley unit 10.

The first mounting block 44 may be formed of rubber or silicone material having an excellent friction coefficient to prevent separation of the pulley unit 10 .

At this time, the first mounting block 44 may be formed of a metal material, and a cylindrical mounting tube formed of rubber or silicon material may be mounted on the outer periphery.

Since the mounting tube is in close contact with the inner periphery of the pulley unit 10, it is possible to prevent the pulley unit 10 from being separated.

Hinge brackets overlapping each other are formed on the upper surface of the first mounting block 44 and the lower surface of the rotation guide bar 45 .

Through-holes located on the same line are formed in the hinge bracket of the first mounting block 44 and the rotation guide bar 45.

Then, the hinge shaft 451 is installed through the through-holes formed in the brackets of the first mounting block 44 and the rotation guide bar 45 sequentially.

Due to this, the first mounting block 44 and the pulley unit 10 are rotated in left and right directions with respect to the hinge axis 451 .

The first collision plate 46 is disposed on one side of the pulley unit 10 in the accommodation space of the box unit 41 .

The second collision plate 47 is disposed on the other side of the pulley unit 10 in the accommodation space of the box unit 41 .

At least one coil spring is coupled to one side surface of the first collision plate 46 and the second collision plate 47, respectively.

The fixing bar 49 is fixed to one inner wall surface of the box portion 41 .

A coil spring coupled to the first collision plate 46 is fixed to the fixing bar 49 .

The coil spring coupled to the second collision plate 47 is fixed to the floating bar 40a.

The first solenoid 40b is fixed to the inner wall surface of the box portion 41.

The plunger of the first solenoid 40b is coupled to the floating bar 40a.

The first solenoid 40b rotates the moving bar 40a at predetermined time intervals so that the pulley unit 10 repeatedly collides with the first collision plate 46 and the second collision plate 47 to generate vibration. back up

The discharge fan (40c) is seated on the upper surface of the seating part (43) and positioned on a vertical line with the discharge hole (41a), and the pulley part (10) is attached to the first collision plate (46) and the second collision plate (47). Foreign substances separated from the pulley part 10 due to the collision are discharged to the outside of the box part 41 .

Next, the operation of the removal unit 40 described above will be described.

On the outer surface of the box part 41, first and second operation buttons for operating the first solenoid 40b and the discharge fan 40c and first and second stop buttons for stopping the operation of the first solenoid 40b are provided, respectively. installed

First, the first mounting block 44 is mounted on the pulley part 10, and then the first solenoid 40b and the discharge fan 40c are operated by pressing the first and second operation buttons.

The first solenoid 40b is programmed to stop its operation after moving the moving bar 40a forward and backward about 1 to 3 times.

When the first solenoid 40b advances the moving bar 40a, the first coil spring 48a and the second collision plate 47 move forward and collide with the gear teeth 11 of the pulley unit 10.

As a result, the first mounting block 44 is rotated at a predetermined angle in the right direction with respect to the rotation axis, and the pulley unit 10 to which the first mounting block 44 is mounted is also rotated in the same direction, so that the first collision plate 46 ) crashes into

Accordingly, the first collision plate 46 is pushed by the pulley unit 10, and the second coil spring 48b supporting the first collision plate 46 is compressed and then expanded. When the second coil spring 48b expands, the first collision plate 46 moves forward and collides with the gear teeth 11 of the pulley unit 10 .

Due to this, the first mounting block 44 is rotated at a predetermined angle in the left direction with respect to the rotation axis, and the pulley part 10 is also rotated in the same direction to collide with the second collision plate 47 .

That is, the first coil spring 48a and the second coil spring 48b repeatedly compress and expand as the pulley part 10 collides with the first collision plate 46 and the second collision plate 47, respectively. As a result, the pulley unit 10 is repeatedly bounced by the first collision plate 46 and the second collision plate 47, and thus, foreign substances deposited on the outer and inner surfaces of the pulley unit 10 can be shaken off. , The foreign matter separated from the pulley part 10 is sucked into the intake fan and discharged to the outside of the box part 41 .

In particular, when the pulley unit 10 bounces off the first collision plate 46 and the second collision plate 47, it repeatedly rotates in left and right directions like a pendulum by a rotating shaft, so that it repeatedly tilts.

That is, when the pulley unit 10 is rotated in the direction of the first collision plate 46, only the right lower area thereof is inclined in a form of colliding with the first collision plate 46, and is tilted in the direction of the second collision plate 47. When it is rotated, only the lower area of the left side is tilted in such a way that it is charged with the second collision plate 47, so foreign substances present on the belt groove 10a formed between the gear teeth 11 are discharged by vibration It can be made to fall.

In addition, when the pulley part 10 is tilted in the left and right directions, the intake force of the intake fan acts between the gear teeth 11, so that foreign substances present on the belt groove 10a are easily sucked in and the box part 41 ) can be discharged to the outside of the

The engine pulley structure 1 according to an embodiment of the present invention removes foreign substances present in the belt groove 10a between the inner surface of the pulley unit 10 and particularly the gear teeth 11 through the removal unit 40 described above. Accordingly, when coupling the belt to apply the pulley unit 10 to the engine later, it is possible to ensure that no foreign matter exists between the outer surface of the pulley unit 10 and the belt. Therefore, the belt can rotate smoothly without being interfered with by foreign substances.

On the other hand, after the foreign matter is removed from the pulley part 10 through the removal part 40, the foreign matter is removed secondarily through the external scraper part 50.

The external scraper unit 50 is spaced apart from one side of the removal unit 40 at a predetermined interval.

The external scraper unit 50 removes foreign substances that could not be removed through the removal unit 40, and removes the foreign substances by scraping the belt grooves 10a formed between the gear teeth 11, respectively.

To this end, the external scraper unit 50 includes a second mounting block 52, a motor 53, a first operating bar 54, a first connecting bar 55, a second solenoid 56, It includes a first forward/backward drive cylinder 57, a second operating bar 58, a second connection bar 59, a third solenoid 50a, and a second forward/backward drive cylinder 50b. .

At this time, if the vibration unit removes the foreign matter with the pulley unit 10 standing, the external scraper unit 50 removes the foreign material with the pulley unit 10 inverted.

The external scraper unit 50 may further include a first additional box unit 51 having an open upper surface and an accommodation space formed therein, and the pulley unit 10 is located in the accommodation space of the first additional box unit 51. Accepted.

The second mounting block 52 is mounted on one side of the inner space of the pulley unit 10 accommodated in the accommodation space of the first additional box unit 51 in an interference fitting manner, and one side protrudes to one side of the pulley unit 10. .

The second mounting block 52 may be formed of a rubber or silicone material having an excellent friction coefficient to prevent separation of the pulley unit 10 .

At this time, the second mounting block 52 may be formed of a metal material, and a cylindrical mounting tube formed of rubber or silicon material may be mounted on the outer periphery.

Since the mounting tube is mounted in a form in close contact with the inner periphery of the pulley unit 10, it is possible to prevent the pulley unit 10 from being separated.

The motor 53 is fixed to the inner wall surface of the first additional box portion 51, and its shaft is coupled to the second mounting block 52.

For example, the shaft of the motor 53 may be directly coupled to the second mounting block 52 .

As another example, although not shown in the drawings, the motor 53 and the second mounting block 52 may be coupled through a coupler.

To this end, the coupler is formed in the shape of a circular pipe with both sides open.

In addition, a coupling shaft formed in a polygonal cross-sectional shape is formed in the second mounting block 52, and a polygonal groove having the same cross-sectional shape as the coupling shaft is formed inside one side of the coupler.

In addition, a groove into which the shaft of the motor 53 is inserted is formed inside the other side of the coupler.

The shaft of the motor 53 may be coupled to the groove of the coupler with any one selected from among adhesives, bolts, and pieces.

Due to this, when the motor 53 operates, the coupler, the second mounting block 52, and the pulley unit 10 are rotated together.

The first operating bars 54 are accommodated in the belt grooves 10a, respectively.

One surface of the first operating bar 54 is in contact with the outer surface of the pulley part 10 in the belt groove 10a to scrape the outer surface of the pulley part 10 rotated by the rotation of the motor 53 A plurality of first Brushes 541 are formed at regular intervals.

The first connecting bar 55 connects the first operating bars 54 integrally.

That is, the first connecting bar 55 is coupled to the first operating bars 54 arranged in a horizontal direction along the belt groove 10a.

The first operating bars 54 may be integrally connected through the first connection bar 55 .

Accordingly, by the movement of the first connection bar 55, the first operating bars 54 are simultaneously moved in the same direction.

The plunger of the second solenoid 56 is coupled to the first connection bar 55.

The second solenoid 56 repeatedly moves the first connecting bar 55 forward and backward so that the first brush 541 scrapes the outer surface of the pulley unit 10 rotated by the motor 53 .

The first forward/reverse driving cylinder 57 is fixed to the inner wall surface of the first additional box part 51.

The first forward/reverse drive cylinder 57 advances or reverses the first connection bar 55 so that the first operating bar 54 is accommodated in or separated from the belt groove 10a.

The second operating bar 58 is disposed to face the first operating bar 54 with the pulley unit 10 interposed therebetween, and the first operating bar 54 is connected to the first forward and backward driving cylinders 57. After being separated from the belt groove 10a by the second forward and reverse drive cylinders 50b, each of them is accommodated in the belt groove 10a, and scraping one side of the gear teeth 11 different from each other on one side and the other side Second brushes 581 are formed at regular intervals.

The second connecting bar 59 connects the second operating bars 58 integrally.

The plunger of the third solenoid 50a is coupled to the second connection bar 59.

The third solenoid 50a repeatedly rotates the second connecting bar 59 so that the second brush 581 scrapes one side of the gear teeth 11 on the pulley part 10 rotated by the motor 53, respectively. advance and reverse.

The second forward/backward driving cylinder 50b is fixed to the inner wall surface of the first additional box part 51.

The second forward/reverse driving cylinder 50b moves the second connecting bar 59 forward or backward so that the second operating bar 58 is accommodated in or separated from the belt groove 10a.

The external scraper unit 50 may include a first additional discharge fan 50c identical to the discharge fan 40c of the removal unit 40 .

The first additional discharge fan 50c may be disposed on an upper open portion of the first additional box unit 51 or on a bottom surface of the first additional box unit 51 . In addition, the first operating bar 54 and the second operating bar 58 are located on the upper side of the pulley unit 10 when the first additional discharge fan 50c is disposed above the first additional box unit 51. And, when the first additional discharge fan 50c is disposed below the first additional box part 51, it is disposed below the pulley part 10.

The drawing shows an example in which the first operating bar 54, the second operating bar 58, and the additional discharge fan 40c are disposed above the pulley unit 10.

Next, the operation of the external scraper unit 50 described above will be described.

A motor 53, a second solenoid 56, a first forward/backward drive cylinder 57, a third solenoid 50a, and a second forward/backward drive are provided on the outer surface of the first additional box unit 51. An integrated operation button for simultaneously operating the driving cylinder 50b and the additional discharge fan 40c, a motor 53, a second solenoid 56, a first forward/backward driving cylinder 57, and a third solenoid (50a) and an integrated stop button for stopping the operation of the second forward and reverse driving cylinders (50b) and the additional discharge fan (40c) are respectively installed.

First, the second mounting block 52 is mounted on the pulley unit 10, and then the pulley unit 10 is seated on a support 50d formed in a semicircular shape with an open upper surface.

At this time, a plurality of rollers 501d for smoothly rotating the pulley unit 10 may be rotatably coupled to the inner surface of the support 50d.

After that, the operation signal is applied by pressing each of the above-described integrated operation buttons.

At this time, the engine pulley structure 1 according to an embodiment of the present invention sequentially connects the first forward and reverse driving cylinders 57, the additional discharge fan 40c, the motor 53, and the second solenoid 56. , and when a predetermined time elapses, the operation of the second solenoid 56 is stopped, and the first forward/backward drive cylinder 57 moves the first connecting bar 55 backward, and then the third solenoid 50a and the second forward/backward driving cylinder 50b is programmed to operate.

Specifically, when the integrated operation button is pressed, the first forward and backward drive cylinders 57 advance the first connection bar 55 to position the first operation bars 54 in the belt grooves 10a, respectively.

Thereafter, the motor 53 and the second solenoid 56 operate to rotate the pulley unit 10 in the forward or reverse direction, and the second solenoid 56 repeatedly rotates the first connection bar 55 for a preset time. I will backtrack.

Due to this, the first brushes 541 are also repeatedly moved forward and backward to scrape foreign substances while generating friction with the outer surface of the pulley unit 10 .

In addition, the foreign substances separated from the pulley part 10 by the operation of the first brushes 541 are discharged to the outside of the first additional box part 51 by the first additional discharge fan 50c.

At this time, the first operating bars 54 repeatedly move forward and backward in place, but since the motor 53 continues to rotate the pulley unit 10 in the forward or reverse direction, the entire outer periphery of the pulley unit 10 is scraped in place. This will remove foreign matter.

Even when the first operating bar 54 is positioned in the belt groove 10a without the second solenoid 56, the first brush 541 moves through the rotation of the pulley unit 10 by the motor 53. Foreign substances can be scraped by sufficiently generating friction with the outer surface of (10), but when the first operation bar 54 is moved forward or backward through the second solenoid 56, the first brush for the outer surface of the pulley part 10 Efficient scraping can be achieved by further increasing the frictional force of 541.

And, when a predetermined time (which may be about 1 minute to 5 minutes) has elapsed, the operation of the second solenoid 56 is stopped and the first forward/backward driving cylinder 57 moves the first connecting bar 55 backward. to pull out the first operating bars 54 from the belt grooves 10a.

Thereafter, the second forward/reverse drive cylinder 50b advances the second connecting bar 59 to position the second operating bars 58 in the belt grooves 10a, respectively.

At this time, the motor 53 may be programmed to continuously operate or may be temporarily stopped until the second operating bars 58 are located in the belt grooves 10a and then operated again.

The pulley unit 10 is rotated forward or backward, and the third solenoid 50a repeatedly moves the second connection bar 59 forward and backward for a predetermined time (which may be about 1 to 5 minutes).

Due to this, the second brushes 581 are also repeatedly moved forward and backward to scrape foreign substances while generating friction with one side of the gear teeth 11, respectively.

Also, the foreign substances separated from the pulley part 10 by the operation of the second brushes 581 are discharged to the outside of the first additional box part 51 by the first additional discharge fan 50c.

At this time, the second operating bars 58 repeat forward and backward movement in place, but since the motor 53 continues to rotate the pulley unit 10 in the forward or reverse direction, the entire outer periphery of the pulley unit 10 is scraped in place. This will remove foreign matter.

Even when the second operating bar 58 is positioned in the belt groove 10a without the third solenoid 50a, the second brush 581 is rotated by the motor 53 to rotate the pulley unit 10. It is possible to scrape foreign matter by sufficiently generating friction with the outer surface of (11), but if the second operating bar 58 is moved forward or backward through the third solenoid 50a, the second brush 581 for the gear tooth 11 ), it is possible to achieve efficient scraping by further increasing the frictional force.

On the other hand, after the foreign substances are secondarily removed from the pulley unit 10 through the external scraper unit 50, the inner surface of the pulley unit 10 is scraped through the internal scraper unit 60.

The inner scraper part 60 is spaced apart from one side of the outer scraper part 50 by a predetermined interval.

The inner scraper includes the second additional box portion 61, the mounting cap 62, the additional motor 63, the third operating bar 64, and the fourth solenoid to scrape the inner surface of the pulley unit 10 ( 65) and a lifting cylinder 66.

The upper surface of the second additional box unit 61 is opened, and an accommodation space in which the pulley unit 10 is accommodated is formed.

A discharge hole 61a for discharging foreign substances removed from the pulley unit 10 is formed on the bottom surface of the second additional box unit 61 .

Both sides of the bottom surface of the second additional box unit 61 may be supported by a pair of additional support units 67 .

Between the additional support parts 67, an additional seating part 68 is disposed below the discharge hole 61a of the second additional box part 61 by a predetermined interval and on which the second additional discharge fan 69 to be described later is seated. do.

The bottom surface of the mounting cap 62 is open, and an empty space is formed therein to accommodate the upper side of the pulley unit 10 .

The mounting cap 62 may be formed of rubber or silicone material having an excellent friction coefficient to prevent separation of the pulley unit 10 .

At this time, the mounting cap 62 may be formed of a metal material, and a tubular mounting tube made of rubber or silicon material may be mounted on the inner periphery.

Since the mounting tube is mounted in a form in close contact with the outer periphery of the pulley unit 10, it is possible to prevent the pulley unit 10 from being separated.

The shaft of the additional motor 63 is coupled to the upper surface of the mounting cap 62.

For example, the shaft of the additional motor 63 may be directly coupled to the mounting cap 62.

As another example, although not shown in the drawings, the shaft of the additional motor 63 and the mounting cap 62 may be coupled through a coupler.

The coupling of the shaft of the additional motor 63 and the mounting cap 62 is the same as the method of coupling the above-described coupler and the second mounting block 52, so a detailed description thereof will be omitted.

When the additional motor 63 operates, the mounting cap 62 and the pulley 10 are rotated together.

The third operation bar 64 faces the mounting cap 62 with the pulley part 10 interposed therebetween.

The third operation bar 64 is accommodated in the inner space of the pulley unit 10 through the lower open portion of the pulley unit 10 .

A plurality of third brushes 641 scraping the inner surface of the pulley unit 10 along the circumferential surface and the longitudinal direction of the outer periphery of the third operating bar 64 are formed at regular intervals.

The third operating bar 64 is formed to have the same length as the pulley part 10 .

The plunger of the fourth solenoid 65 is coupled to the lower surface of the third operating bar 64.

The fourth solenoid 65 moves the third operating bar 64 on the inner space of the pulley unit 10 so that the third brush 641 scrapes the inner surface of the pulley unit 10 rotated by the additional motor 63. Raise and descend repeatedly.

The fourth solenoid 65 is seated on the upper surface of the lifting bar 60a.

The elevating cylinder 66 is disposed on the bottom surface of the box portion 41 . The lift cylinder 66 raises or lowers the lift bar 60a so that the third operating bar 64 is accommodated in or separated from the inner space of the pulley unit 10 .

The third operation bar 64 is formed to have the same length as the pulley part 10 or to have a longer length than the pulley part 10 .

Accordingly, the third brush 641 is evenly distributed over the entire inner surface of the pulley unit 10 and is in contact with it.

The internal scraper unit 60 may further include a second additional discharge fan 69 identical to the first additional discharge fan 50c.

The second additional discharge fan 69 discharges foreign substances separated from the pulley unit 10 to the outside of the second additional box unit 61 through an air intake operation while seated on the additional seating unit 68 .

A plurality of passage holes through which foreign substances separated from the inner surface of the pulley unit 10 by the third brush 641 pass through may be formed in the lifting bar 60a at regular intervals.

Next, the operation of the above-described internal scraper unit 60 will be described.

On the outer surface of the second additional box unit 61, power is applied to the additional motor 63, the fourth solenoid 65, the second additional discharge fan 69, and the lifting cylinder 66 to operate them simultaneously. An operation button, an integrated stop button for stopping the operation of the additional motor 63, the fourth solenoid 65, the second additional discharge fan 69, and the lifting cylinder 66 are respectively installed.

First, the mounting cap 62 is mounted on the upper side of the pulley unit 10, and then an operation signal is applied by pressing the aforementioned integrated operation buttons.

At this time, the engine pulley structure 1 according to an embodiment of the present invention operates sequentially with the elevating cylinder 66, the second additional discharge fan 69, the additional motor 63, and the fourth solenoid 65. And, when the predetermined time elapses, the operations of the second additional discharge fan 69, the fourth solenoid 65, and the additional motor 63 are stopped, and the lifting cylinder 66 lowers the fourth solenoid 65. is programmed to

Specifically, when the integrated operating button is pressed, the lifting cylinder 66 raises the fourth solenoid 65 to accommodate the third operating bar 64 in the inner space of the pulley unit 10 .

Thereafter, the additional motor 63 and the fourth solenoid 65 operate to rotate the pulley unit 10 in the forward or reverse direction, and the fourth solenoid 65 repeatedly operates the third operation bar 64 for a preset time. will rise and fall.

Due to this, the third brushes 641 are also repeatedly raised and lowered to scrape foreign substances while generating friction with the inner surface of the pulley unit 10 .

Further, foreign substances separated from the pulley part 10 by the operation of the third brushes 641 are discharged to the outside of the second additional box part 61 by the second additional discharge fan 69 .

Even without the fourth solenoid 65, the third operating bar 64 generates sufficient friction between the third brush 641 and the inner surface of the pulley unit 10 by the rotation of the pulley unit 10 by the additional motor 63. However, if the third operation bar 64 is moved forward or backward through the fourth solenoid 65, the frictional force of the third brush 641 against the outer surface of the pulley unit 10 is further increased to achieve efficient Scraping can be done.

And, when the predetermined time (which may be about 1 minute to 5 minutes) has elapsed, the operation of the fourth solenoid 65 is stopped and the lifting cylinder 66 lowers the third operating bar 64 so that the pulley unit 10 ) to the outside of

Therefore, the pulley unit 10 may be separated from the mounting cap 62 and then installed in the engine.

The above-described embodiments are for illustrative purposes, and those skilled in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the following claims rather than the detailed description above, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof. .

1: engine pulley structure 10: pulley part
10a: belt groove 11: gear tooth
20: protection washer part 20a: fastening hole
21: contact surface portion 30: corrosion protection portion
40: removal part 41: box part
41a, 61a: discharge hole 42: support
43: seating part 44: first mounting block
45: rotation guide bar 451: hinge axis
46: first impact plate 47: second impact plate
48a: first coil spring 48b: second coil spring
49: fixed bar 40a: floating bar
40b: first solenoid 40c: discharge fan
50: external scraper unit 51: first additional box unit
52: second mounting block 53: motor
54: first operating bar 541: first brush
55: first connecting bar 56: second solenoid
57: first forward and backward driving cylinder 58: second operating bar
581: second brush 59: second connection bar
50a: third solenoid 50b: second forward and backward drive cylinder
50c: first additional discharge fan 50d: support
501d: roller 60: inner scraper unit
61: second additional box part 62: mounting cap
63: additional motor 64: third operating bar
641: third brush 65: fourth solenoid
66: lifting cylinder 67: additional support
68: additional seating part 69: second additional discharge fan
60a: lifting bar 601a: through hole

Claims (3)

A pulley unit connected to the crank pulley of the engine and capable of transmitting power;
a protective washer part formed on one side of the pulley part and coupled to a disc hub part interlocking with the pulley part;
a removal unit configured to vibrate the pulley unit to remove foreign substances before the pulley unit is connected to the crank pulley of the engine;
It is disposed on one side of the removal unit, is formed on the circumferential surface of the pulley unit, and is disposed to be spaced apart from each other at regular intervals along the longitudinal direction of the pulley unit. External to remove foreign substances by scraping the belt grooves formed between gear teeth, respectively. scraper unit; and
It is disposed on one side of the external scraper unit, and includes an internal scraper unit for removing foreign substances by scraping the inner circumference of the pulley unit,
the removal unit,
a box unit having an accommodation space in which the pulley unit is accommodated and a discharge hole formed on a bottom surface for discharging foreign substances removed from the pulley unit;
a support portion supporting one side and the other side of the bottom surface of the box portion, respectively;
a seating portion disposed between the support portions and spaced apart from the discharge hole at a predetermined interval;
a first mounting block mounted on an inner periphery of the pulley unit located in the accommodating space and protruding upward from the upper side of the pulley unit;
a rotation guide bar coupled to an upper surface of the first mounting block and rotating the first mounting block and the pulley in left and right directions;
first and second collision plates disposed on one side and the other side of the pulley, respectively;
coil springs respectively coupled to one side surfaces of the first collision plate and the second collision plate;
a fixing bar fixed to an inner wall surface of the box part and to which a coil spring coupled to the first collision plate is fixed;
a moving bar to which a coil spring coupled to the second collision plate is fixed;
a first solenoid for moving the moving bar forward and backward at predetermined time intervals so that the pulley part repeatedly collides with the first and second collision plates to generate vibration; and
A discharge fan seated on the upper surface of the seating part, positioned on a vertical line with the discharge hole, and discharging foreign substances separated from the pulley part due to the pulley part colliding with the first and second impact plates to the outside of the box part. including,
The external scraper part,
a second mounting block mounted on an inner periphery of the pulley;
a motor for providing power to the second mounting block so that the pulley rotates in one direction;
First operating bars accommodated in the belt grooves and having a plurality of first brushes formed at regular intervals on one surface thereof to scrape the outer surface of the pulley part rotated by the rotation of the motor in contact with the outer surface of the pulley part;
a first connection bar integrally connecting the first operation bars;
a second solenoid that repeatedly advances and reverses the first connection bar so that the first brush scrapes an outer surface of the pulley part rotated by the motor;
a first forward/backward drive cylinder for moving the first connecting bar forward/backward so as to accommodate or disengage the first operating bar from the belt groove;
It is disposed to face the first actuation bar with the pulley part interposed therebetween, and after the first actuation bar is separated from the belt groove by the first forward and backward driving cylinders, it is accommodated in the belt groove, one side and the other side a second operation bar in which second brushes scraping one side of different gear teeth are formed at regular intervals;
a second connecting bar integrally connecting the second operating bars;
a third solenoid that repeatedly moves the second connection bar forward and backward so that the second brush scrapes one side surface of the gear tooth on the pulley part rotated by the motor; and
A second forward and backward driving cylinder for moving the second connecting bar forward and backward to accommodate or release the second operating bar into the belt groove;
The inner scraper part,
a mounting cap mounted on an outer periphery of one side of the pulley;
an additional motor providing power to the mounting cap so that the pulley rotates in one direction;
a third operation bar facing the mounting cap with the pulley interposed therebetween, accommodated in the inner space of the pulley, and having a plurality of third brushes formed at regular intervals on an outer circumference of the pulley to scrape the inner circumference of the pulley;
a fourth solenoid that repeatedly advances and reverses the third operation bar on the inner space of the pulley unit so that the third brush scrapes the inner periphery of the pulley unit rotated by the additional motor; and
An engine pulley structure comprising a lifting cylinder for raising or lowering the fourth solenoid to accommodate or release the third operating bar into the inner space of the pulley unit.
According to claim 1,
The engine pulley structure further comprises a corrosion protection part formed by coating on one surface of the protection washer part or one surface of the disk hub part.
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