CN108343726B - V-pulley capable of adjusting the alignment of V-belt and control method thereof - Google Patents

Abstract

The present invention relates to a V-pulley capable of adjusting alignment of a V-belt, and a control method thereof, the V-pulley including: a plurality of rib-shaped guides that protrude along a circumferential surface of the V-pulley; and an alignment corrector that moves the V-shaped transmission belt in a direction toward an inside of the V-pulley when the rib of the V-shaped transmission belt is located outside an outermost rib guide of the plurality of rib guides.

Description

V-pulley capable of adjusting the alignment of V-belt and control method thereof

technical field

The present invention relates to a transmission pulley that transmits power by using a transmission belt that transmits power, and more particularly to a V-shaped pulley capable of adjusting the alignment of the V-shaped transmission belt and a control method thereof, when the V-shaped pulley is wrapped and the The V-belt moves the V-belt into the V-belt and adjusts the alignment of the V-belt when a portion of the V-belt rotating against the V-belt is separated from the V-belt.

Background technique

Various devices for transmitting power are used in various mechanical equipment, including the engine of a vehicle. For example, a drive belt and a drive pulley may be used to transmit power from the drive pulley to the driven pulley. In particular, V-belts are widely used, which can operate at high speed and increase the contact area between the belt and the pulley by making the cross-section of the contact portion between the belt and the pulley have a trapezoidal shape to thereby increase the contact area between the belt and the pulley. Has good power transmission performance.

FIG. 1 shows a V-belt 120 and a V-pulley 110 wound around the V-belt 120 .

A phenomenon in which the V-belt 120 is separated from the V-pulley 110 may occur during operation. For example, when the V-belt 120 is improperly assembled to the V-pulley 110 or for other reasons, a portion of the V-belt 120 may separate from the V-pulley 110 while rotating.

2 shows a state in which a part of the rib 121 of the V-belt 120 is provided on the outer side of the outermost rib guide 111 of the rib guide 111, wherein the rib 121 is formed to be inserted in the V-belt 110 between the rib-shaped guides 111 . When the V-belt 110 and the V-belt 120 are rotated in a state where the V-belt 120 is deviated from the V-belt 110 as described above, noise may be generated or insufficient power may be transmitted. Furthermore, if this phenomenon persists for a long period of time, the V-belt 120 may be damaged or broken.

In addition, when the V-belt 120 and the V-belt pulley 110 are mounted on the engine of the vehicle for driving auxiliary machines and the V-belt 120 rotates while deviating, the engine may overheat due to insufficient power transmitted through the V-belt 120 .

The above content is only intended to help understand the background of the present invention, and is not intended to represent that the present invention falls within the scope of the related art known to those skilled in the art.

SUMMARY OF THE INVENTION

The present invention solves the above-mentioned problems occurring in the related art, and the present invention aims to propose a V-belt capable of adjusting the alignment of the V-belt and a control method thereof, even if the ribs of the V-belt wound around the V-belt The V-shaped pulley is separated from the V-shaped pulley, and the V-shaped pulley can also adjust the alignment state of the V-shaped belt by moving the V-shaped belt to the inside of the V-shaped pulley through the alignment corrector.

According to an aspect of the present invention, a V-shaped pulley includes: a plurality of rib-shaped guides protruding along a circumferential surface of the V-shaped pulley; and an alignment corrector, when the V-shaped pulley is The alignment corrector moves the V-belt in a direction toward the interior of the V-pulley when the rib of the belt is located outside the outermost rib guide of the plurality of rib guides, wherein the alignment The corrector includes an alignment portion and a lever hinged to the side surface of the V-belt for raising the alignment portion when the V-belt deflects and the ribs of the V-belt contact the lever.

The alignment portion is mounted in alignment portion mounting grooves formed on the V-pulley to move up and down and has alignment guides to move the V-belt toward the V-pulley.

The alignment guides in the alignment portion may be formed such that one rib guide of the plurality of rib guides is connected to an adjacent rib guide of the plurality of rib guides.

The alignment guides may be formed in plurality, and the plurality of alignment guides may be arranged parallel to each other.

The number of alignment guides may be one less than the number of rib guides.

An elastic member may be installed in the alignment portion mounting groove, and the elastic member may elastically support the alignment portion in a direction in which the alignment portion is lowered.

A middle portion of the lever may be hinged to the side surface of the V-pulley, one end of the lever may be connected to the alignment portion and the other end may be positioned adjacent the peripheral surface of the V-pulley.

The circumferential surface of the other end portion of the lever may have a circular arc shape, and the circumferential surface of the other end portion of the lever may contact the rib of the V-belt when the rib is located outside the V-belt.

The V-pulley may further include a cover having a groove that accommodates one end of the lever so as to limit rotation of the lever, the cover being engaged on the outside of the V-pulley.

The alignment corrector may be provided at two positions spaced apart from each other along the circumferential direction of the V-pulley, and may be installed to move the V-belt in directions opposite to each other.

The levers may be mounted on opposite sides of the V-belt pulleys, respectively, and the alignment guides of the alignment portion may be formed to move the V-belts in opposite directions to each other.

According to another aspect of the present invention, a control method of a V-pulley capable of adjusting the alignment of a V-belt includes the steps of: when a rib is located on a rib guide formed in a circumferential direction of the V-pulley When the outside of the V-belt, the deflected ribs of the V-belt come into contact with a lever rotatably mounted on the outside of the V-pulley, thereby causing the lever to rotate; the rotation of the lever causes the alignment portion formed on the V-pulley to install the groove The alignment portion in the aligning portion is raised; by raising the alignment portion, the alignment guide formed at the upper end of the alignment portion moves the V-belt toward the inside of the V-pulley to adjust the alignment of the V-belt; lower the alignment portion and make the lever Return to the original position when adjusting the alignment of the V-belt.

According to the V-belt capable of adjusting the alignment of the V-belt and the control method thereof including the above-mentioned configuration, even if the rib of the V-belt is located outside the V-belt and thus deviates, the V-belt can be adjusted by the alignment corrector The drive belt keeps it inside the V-pulley.

Since the V-belt is adjusted to the inside of the V-pulley by self-alignment, the above-mentioned problems such as noise and damage of the V-belt due to deviation can be solved.

Description of drawings

The above and other objects, features and advantages of the present invention will be more clearly understood from the following detailed description presented in conjunction with the accompanying drawings, in which:

1 is a perspective view showing a V-shaped pulley and a V-shaped transmission belt according to a conventional technique;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

3 is a perspective view showing a V-belt and a V-pulley capable of adjusting the alignment of the V-belt according to an exemplary embodiment of the present invention;

4 is a partially enlarged perspective view of the V-pulleys capable of adjusting the alignment of the V-belt according to the present exemplary embodiment;

5 is a partially enlarged perspective view showing an alignment portion mounting groove in a V-belt capable of adjusting the alignment of the V-belt according to the present exemplary embodiment;

6 is a top view showing an alignment portion in a V-pulley capable of adjusting the alignment of a V-belt according to the present exemplary embodiment;

7 is a partially enlarged perspective view showing a state in which the rib-shaped guide of the V-pulley according to the present exemplary embodiment is connected to the alignment guide capable of adjusting the alignment portion in the V-pulley of the V-belt aligned;

8 is a perspective view showing a state in which a deviated V-belt according to the present exemplary embodiment comes into contact with a lever in a V-pulley capable of adjusting the alignment of the V-belt;

9 is a side view showing a state in which the deviated V-belt comes into contact with a lever in the aligned V-pulley capable of adjusting the V-belt according to the present exemplary embodiment;

Figure 10 is a cross-sectional view taken along line C-C of Figure 8;

11 is a perspective view showing a state in which the deviated V-belt operates a lever in the V-pulley capable of adjusting the alignment of the V-belt according to the present exemplary embodiment;

12 is a partially enlarged perspective view of FIG. 10;

Figure 13 is a cross-sectional view taken along line D-D of Figure 11;

14 is a partially enlarged perspective view showing a state in which the deviated V-belt according to the present exemplary embodiment is moved in the lateral direction in the V-pulley capable of adjusting the alignment of the V-belt;

15 is a perspective view showing a state where the adjustment of the alignment state of the V-belt is completed in the V-belt capable of adjusting the alignment of the V-belt according to the present exemplary embodiment;

Figure 16 is a cross-sectional view taken along line E-E of Figure 15;

17 is a flowchart of a control method of a V-pulley capable of adjusting the alignment of a V-belt according to the present exemplary embodiment.

Detailed ways

Hereinafter, a V-shaped pulley capable of adjusting the alignment of a V-shaped transmission belt according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The V-pulley capable of adjusting the alignment of the V-belt according to the exemplary embodiment of the present invention may include: a plurality of rib-like guides 11 and an alignment corrector; the rib-like guides 11 along the V-pulley 10 The circumferential surface of the V-belt 20 protrudes so as to be inserted between the plurality of ribs 21 formed on the V-belt 20; The alignment corrector is used to move the V-belt 20 in the direction in which the plurality of rib-shaped guides 11 are formed when the rib-shaped guides 11 are formed at the outermost portions of the guides 11 .

The cross-sectional surfaces of the V-belt 10 and the V-belt 20 contacting each other may have a trapezoidal shape to increase the contact area with each other, so that the V-belt 10 and the V-belt 20 can be applied at high speed and transmit large power.

A plurality of ribs 21 may be formed at the inner surface of the V-belt 20 and a plurality of rib guides 11 may be formed at the outer surface of the V-belt 10 so that the plurality of ribs 21 are inserted in the plurality of ribs. between the guides 11 .

The rib-shaped guides 11 may be formed on the circumferential surface of the V-shaped pulley 10 in the circumferential direction, and formed at predetermined intervals in the axial direction of the V-shaped pulley 10 .

The rib guide 11 may be inserted between the ribs, and the inclined surface of the rib guide 11 may contact the inclined surface of the rib 21 so that power transmission between the V pulley 10 and the V belt 20 may be performed.

An alignment corrector may be provided on the V-belt 10 when some of the ribs 21 of the ribs of the V-belt 20 are separated from the V-belt 10 externally to deviate as shown in FIG. 2 . The actuator moves the V-belt 20 in the axial direction for alignment.

As shown in FIG. 4 , the alignment corrector can be installed on one side of the V-belt 10 , when some ribs 21 of the V-belt 20 are separated from the V-belt 10 , the alignment corrector can make the V-belt 20 Move in the axial direction of the V-belt pulley 10 .

To mount the alignment corrector, an alignment portion mounting groove 12 may be formed on the V-belt pulley 10 . As shown in FIG. 5 , the alignment portion mounting groove 12 may be formed at a predetermined depth from the circumferential surface of the V-shaped pulley 10 toward the center of the alignment portion mounting groove 12 . Advantageously, the alignment portion mounting grooves 12 are formed with equal cross-sectional areas along its length to move the alignment portion 13 up and down.

The alignment portion 13 can be mounted to move up and down in the alignment portion mounting groove 12 . An alignment guide 13 a having a shape similar to that of the rib-shaped guide 11 may be formed at the upper end of the alignment portion 13 . The alignment guide 13a can be inserted into the rib 21 of the V-belt 20 .

As shown in FIGS. 6 and 7 , the alignment guide 13 a may be formed such that the rib guide 11 is connected to the adjacent rib guide 11 . That is, the rib-shaped guides 11 are not connected in the circumferential direction and are cut off by the alignment portion mounting grooves 12 so that the alignment guides 13 a can connect these rib-shaped guides 11 . In particular, the alignment guide 13a may connect the rib guide 11 with the most adjacent other rib guide 11 . For example, the left end side rib guide 11 in the V-shaped pulley 10 may be connected to the left second rib guide 11 through one alignment guide 13a.

One alignment guide 13a may be connected with the next-most adjacent rib guide 11 , thereby moving the V-belt 20 in the lateral direction to adjust the alignment of the V-belt 20 .

When the V-belt 10 and the V-belt 20 are normally aligned, the alignment portion 13 may be located in the alignment-portion mounting groove 12, but when the alignment state of the V-belt 10 and the V-belt 20 becomes abnormal, the alignment The portion 13 is raised from the alignment portion mounting groove 12 so that the heights of the alignment guide 13a and the rib guide 11 are equal.

The alignment guides 13a may be formed in plural and parallel to each other.

In addition, the alignment guides 13a may be formed to be one less than the number of the rib-shaped guides 11 . For example, as shown in FIG. 6, when there are four rib guides 11, there may be three alignment guides 13a.

When the V-belt 20 is deflected, the lever 14 can raise the alignment portion 13 .

The middle of the lever 14 can be hinged to the V-pulley 10 so that the lever 14 can rotate about the part that is hinged to the V-pulley 10 .

One end of the lever 14 may be connected to the alignment portion 13 so that the lever may be rotated to raise the alignment portion 13 .

The other end of the lever 14 may be mounted adjacent to the circumferential surface of the V-shaped pulley 10 . The other end of the lever 14 can contact the ribs 21 of the V-belt 20 when the V-belt 20 is deflected. The other end of the lever 14 may have a circular arc shape. The other end of the lever 14 may have approximately the same radius of curvature as that of the V-pulley 10 and may be positioned adjacent to the circumferential surface of the V-pulley 10 so that the V-belt 20 is deflected when the V-belt 20 deviates. 20 can immediately contact the other end of lever 14 .

The elastic member 15 may be installed in the alignment portion installation groove 12 .

The elastic member 15 may elastically support the alignment portion 13 such that the alignment portion 13 is inserted into the alignment portion mounting groove 12 .

The elastic member 15 may be provided in the form of a coil spring.

The cover 16 may be joined to the side surface of the V-pulley 10 . The cover 16 may cover the opening portion of the alignment portion mounting groove 12 so as to prevent the alignment portion 13 and the elastic member 15 from being separated.

Additionally, the cover 16 may have a groove for receiving one end of the lever 14 . One end of the lever 14 may be located in the groove to limit the rotation angle of the lever 14 . However, the cover 16 is not shown in the drawings except in FIGS. 3 and 7 .

The operation of the V-belt capable of adjusting the alignment of the V-belt will be described below.

FIG. 3 shows the deviated state, ie the V-belt 20 rotates while some of the ribs 21 of the V-belt 20 are separated to the outside of the V-pulley 10 . At this point, the V-belt 20 is separated from the alignment corrector, and the cross-sectional view along line B-B of FIG. 3 is similar to that shown in FIG. 2 .

After that, if the V-shaped pulley 10 is rotated, as shown in FIGS. 8 to 10 , the V-shaped transmission belt 20 starts to contact the other end of the lever 14 . The outermost rib 21 of the V-belt 20 contacts the other end of the lever 14 through the V-belt 10 .

As shown in FIGS. 11 to 14 , if the rotation of the V-belt 20 continues while the rib 21 contacts the lever 14 , the lever 14 is rotated to raise the alignment portion 13 . If the V-pulley 10 rotates while the rib 21 contacts the lever 14 , the rib 21 presses the other end of the lever 14 so that the lever 14 rotates around the part hinged to the V-pulley 10 . As the other end of the lever 14 is turned to be turned toward the center of the V-shaped pulley 10 , one end of the lever 14 is turned to be turned to the circumferential surface of the V-shaped pulley 10 . The alignment portion 13 accommodated in the alignment portion mounting groove 12 is raised by the rotation of one end of the lever 14 to move toward the circumferential surface of the V-shaped pulley 10 .

If the alignment portion 13 is raised, as shown in FIG. 14, since the V-belt 20 moves along the alignment guide 13a toward the circumferential surface of the V-pulley 10, the V-belt 20 can move in the lateral direction. Since the V-belt 20 moves in the lateral direction, the alignment of the V-belt 20 can be adjusted to form a proper alignment.

If the V-belt 10 is continuously rotated while the alignment state of the V-belt 20 is properly adjusted relative to the V-belt 10 as described above, the ribs 21 are continuously rotated without contacting the alignment corrector. At this time, as shown in FIG. 16 , the cross-sectional state is such that the ribs 21 of the V-belt 20 are not separated toward the outside of the V-belt 10 to be normally aligned.

Alignment correctors may be installed at two different positions of the V-belt pulley 10, respectively, and each alignment corrector may be installed to adjust the alignment position of the V-belt 20 in directions different from each other. That is, the alignment portion mounting grooves 12 may be respectively formed at two different positions spaced apart from each other in the circumferential direction of the V-shaped pulley 10, and the alignment portions 13 may be mounted in directions different from each other with respect to the alignment guide 13a. The levers 14 can be respectively mounted on different surfaces of the V-belt pulley 10 in the alignment portion mounting groove 12 .

Therefore, if two alignment correctors are respectively mounted on the V-belt 10 , the alignment state of the V-belt 20 can be adjusted in both directions of the V-belt 10 .

17 shows a control method of a V-pulley capable of adjusting the alignment of a V-belt according to another exemplary embodiment of the present invention.

The control method of the V-belt capable of adjusting the alignment of the V-belt according to the present exemplary embodiment may include: a lever operation step S110, an alignment portion raising step S120, an alignment state adjustment step S130, and a lever reset step S140; a lever operation In step S110, the deflected rib 21 of the V-belt 20 is brought into contact with the lever 14 mounted on the outside of the V-belt 10 and the lever 14 is rotated; The alignment portion 13 in the alignment portion mounting groove 12 formed on the V-shaped pulley 10 is raised; in the alignment state adjustment step S130, the alignment guide 13a formed at the upper end of the alignment portion 13 is caused by raising the alignment portion 13 The V-belt 20 is moved toward the inside of the V-belt 10 to adjust the alignment state of the V-belt 20; in the lever reset step S140, the alignment portion 13 is lowered and the lever 14 is reset to when the alignment of the V-belt 20 is adjusted the original location.

A plurality of ribs 21 are formed on the V-belt 20 and a plurality of rib guides 11 are formed on the V-belt 10 so as to be inserted between the ribs 21 . If the ribs 21 are rotated in a deviated state, ie the outermost rib 21 of the ribs 21 is located outside the outermost rib guide 11 of the rib guides 11, noise or V may occur The belt 20 may be damaged. However, as described above, since the alignment corrector is provided on the V-belt 10, the alignment state of the V-belt 20 can be adjusted.

The lever operation step S110 is a step in which, when the V-belt 20 is relatively rotated with respect to the V-belt 10 in a deviated state, the deviated ribs 21 of the V-belt 20 are rotatably mounted on the V-belt 10 The lever 14 on the upper contact makes the lever 14 rotate. If the V-belt 20 is rotated in a deviated state, the deviated rib 21 (ie, the rib 21 located outside the rib guide 11 ) is connected to the other end of the lever 14 rotatably mounted on the V-belt 10 touch. After that, if the V-belt 20 is continuously rotated, the deflected rib 21 presses the other end of the lever 14 so that the lever 14 rotates around the part hinged to the V-belt 10 .

The alignment portion raising step S120 moves the alignment portion 13 mounted on the V-shaped pulley 10 up and down by the rotation of the lever 14 . Since the alignment portion 13 is installed to move up and down in the alignment portion mounting groove 12 formed in the V-shaped pulley 10 and contacts the lever 14, if the lever 14 is rotated, the alignment portion 13 is raised.

The alignment state adjustment step S130 is a step of adjusting the alignment state of the deviated V-belt 20 by the alignment guides 13 a formed on the raised alignment portion 13 . The alignment guide 13a may be formed at the upper end of the alignment portion 13 so that the rib guide 11 separated by the alignment portion mounting groove 12 can be connected with the next adjacent rib guide 11 . Therefore, if the alignment portion 13 is raised, the V-belt 20 moves in the lateral direction along the alignment guide 13a so that the alignment state of the V-belt 20 can be adjusted.

When the alignment state of the V-belt 20 is adjusted in the lever reset step S140, since the power to press down the lever 14 disappears, the alignment portion 13 and the lever 14 can be respectively reset to their original positions.

Although the exemplary embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and deletions are possible, without departing from the invention as disclosed in the appended claims the scope and spirit of the invention.

Claims (12)

1. A V-pulley comprising:

a plurality of rib-shaped guides that protrude along a circumferential surface of the V-pulley; and

an alignment corrector that moves the V-shaped transmission belt in a direction toward an inside of the V-shaped pulley when a rib of the V-shaped transmission belt is located outside an outermost rib guide of the plurality of rib guides,

wherein the alignment corrector comprises an alignment portion and a lever hinged to a side surface of the V-shaped pulley, the lever for raising the alignment portion when the V-shaped belt is deflected and a rib of the V-shaped belt contacts the lever.

2. The V-pulley of claim 1 wherein the alignment portion is mounted in an alignment portion mounting groove formed on the V-pulley to move up and down, the alignment portion having an alignment guide to move the V-belt toward the V-pulley.

3. The V-pulley according to claim 2 wherein the alignment guide in the alignment portion is formed such that one rib guide of the plurality of rib guides is connected to an adjacent rib guide of the plurality of rib guides.

4. The V-pulley according to claim 3 wherein the alignment guide is formed in plurality and the plurality of alignment guides are disposed parallel to each other.

5. The V-pulley of claim 4 wherein the number of the plurality of alignment guides is one less than the number of the plurality of rib-like guides.

6. The V-pulley according to claim 2, wherein an elastic member that elastically supports the aligning portion in a direction to lower the aligning portion is installed in the aligning portion installation groove.

7. The V-pulley of claim 2 wherein a middle portion of the lever is hinged to the side surface of the V-pulley, one end portion of the lever being connected to the alignment portion and the other end portion being disposed adjacent to the circumferential surface of the V-pulley.

8. The V-pulley of claim 7 wherein the circumferential surface of the other end of the lever has a circular arc shape that contacts the rib of the V-belt when the rib is outside the V-pulley.

9. The V-pulley of claim 2 further comprising a cover having a groove that receives one end of the lever to limit rotation of the lever, the cover engaging the exterior of the V-pulley.

10. The V-pulley according to claim 2, wherein the alignment corrector is provided at two positions spaced apart from each other in a circumferential direction of the V-pulley, and the alignment corrector is mounted to move the V-belt in opposite directions to each other.

11. The V-pulley of claim 10 wherein the levers are mounted on opposite sides of the V-pulley, respectively, and the alignment guides of the alignment portions are formed to move the V-belt in opposite directions to one another.

12. A method of controlling a V-pulley capable of adjusting the alignment of a V-belt, comprising the steps of:

when the rib is located outside a rib-like guide formed in the circumferential direction of the V-pulley, the offset rib of the V-belt comes into contact with a lever rotatably mounted outside the V-pulley, thereby turning the lever;

raising an alignment portion in an alignment portion mounting groove formed on the V-pulley by rotation of the lever;

adjusting the alignment state of the V-belt by moving the V-belt toward the inside of the V-pulley by an alignment guide formed at an upper end of the alignment portion by raising the alignment portion;

lowering the alignment portion and returning the lever to an original position when adjusting the alignment of the V-belt.

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