KR20200047874A - Power transmission apparatus - Google Patents

Abstract

The present invention relates to a power transmission device including: a control pulley rotated in conjunction with the driving of an actuator; a magnetic force adjusting device which is installed in the control pulley and controls magnetic force by a current; an operation device which is placed on one side of the control pulley and is operated by receiving rotational force; a detachable disk which is placed on the other side of the control pulley and is detachable from the pulley by the operation of the magnetic force adjusting device; a connecting shaft which is connected to the center of the detachable disk and is placed on the same axis as the control pulley; and an inclined gear member which has inclined gear teeth to be coupled to the connecting shaft and is engaged with the operation device in conjunction with the movement of the detachable disk and the connecting shaft.

Description

Power transmission device {POWER TRANSMISSION APPARATUS}

The present invention relates to a power transmission device, and more particularly, to a power transmission device for controlling the connection between the actuator and the actuator.

In general, a compressor of an air conditioner installed in a vehicle is operated by receiving power from an engine. When an operating device such as a compressor is kept connected to the engine, regardless of whether the compressor is operated, the engine is constantly loaded due to physical connection with the compressor.

Background art for the present invention is disclosed in Republic of Korea Patent Publication No. 10-1713468 (name of the invention: power transmission device).

An object of the present invention is to provide a power transmission device capable of solving unnecessarily a load acting on an engine by regulating the connection state between an engine and an operation device as necessary.

The power transmission device according to the present invention, the intermittent pulley is rotated in conjunction with the drive of the actuator; A magnetic force adjusting device installed on the intermittent pulley and the magnetic force controlled by the current; An operation device disposed on one side of the intermittent pulley and operated by receiving rotational force; A removable disk disposed on the other side of the intermittent pulley and detachable from the pulley by operation of the magnetic force adjusting device; A connecting shaft portion connected to the central portion of the removable disk and disposed coaxially with the intermittent pulley; And an inclined gear member that is coupled to the connecting shaft portion with a gear tooth having an inclined shape and is engaged with the operating device in connection with the movement of the detachable disc and the connecting shaft portion.

The intermittent pulley is rotated in conjunction with the actuator, the pulley body portion disposed facing the removable disk; It is formed hollow on the pulley body portion, the magnet installation portion is accommodated in the magnetic force adjustment device; And a guide shaft portion formed in the central portion of the pulley body portion and having a pipe shape through which the connection shaft portion can penetrate.

The intermittent pulley is formed to penetrate through the pulley body portion, and a magnetic force opening portion formed to open between the magnet installation portion and the removable disk.

The connecting shaft portion is connected to the removable disk, an extending shaft portion extending through the guide shaft portion; And an anti-separation stopper part formed at an end portion of the extension shaft portion and having an extended width than an inner diameter portion of the guide shaft portion.

The operating device includes: a driven gear member gear-connected with the inclined gear member; And an operation unit that is operated by receiving the rotational force of the driven gear member.

The driven gear member, a ring portion disposed on the coaxial with the inclined gear member; An internal gear portion formed on the inner circumference of the ring portion and having a first internal gear shape corresponding to the gear tooth and a second internal gear neighboring the first internal gear; And an inlet guide part formed between the first inward gear and the second inward gear, and forming an inclined surface that is drawn inward toward the second inward gear from the end of the first inward gear. It is characterized by.

The inclined gear member, a gear body portion coupled to the connecting shaft portion; An inclined gear portion formed on an outer circumference of the gear body portion and having a gear value inclined with respect to a central axis of the gear body portion; And a damage preventing portion formed at an end of the inclined gear portion facing the operating device and formed by chamfering or rounding an edge portion of the inclined gear portion.

The present invention is characterized in that it further comprises a; installed on the intermittent pulley, disposed in a position opposite to the magnetic force regulating device, the magnetic force is adjusted by the current magnetic force.

When the inclined gear member and the operating device are engaged, the magnetic force regulating device and the magnetic force reinforcing device are controlled to face currents having different polarities, and when the inclined gear member and the operating device are separated, the magnetic force is adjusted. The device and the magnetic force reinforcing device are characterized in that the control of the current is made to face the same polarity with each other.

The present invention is coupled to at least one of the intermittent pulley and the removable disk, including a material that generates frictional force, and is disposed on the contact portion between the intermittent pulley and the removable disk so as not to interfere with the copper wire of the magnetic force adjusting device. It characterized in that it further comprises a contact reinforcing material.

According to the power transmission device according to the present invention, while controlling the current supply of the magnetic force regulating device, it is possible to move the detachable disk into or out of the intermittent pulley, and at the same time connect the inclined gear member connected to the detachable disk to the operating device. Can be unlocked. By controlling the connection state between the actuator and the operating device as necessary by this action, it is possible to prevent an unnecessary load from acting on the actuator.

In addition, according to the present invention, as the inclined gear member has an inclined gear value, movement in the axial direction is interfered with in the engaged state with the inclined gear member, and accordingly the inclined gear member is driven by the inclined gear member during low-speed driving of the operating device. It is possible to stably prevent the escape to the outside.

1 is a conceptual diagram schematically showing a power transmission device according to an embodiment of the present invention.
FIG. 2 is an enlarged view of part A of FIG. 1.
Figure 3 is a bottom view showing the driven gear member of the power transmission apparatus according to an embodiment of the present invention and a B-B 'line developed view.
4 is a plan view and a side view showing the inclined gear member of the power transmission apparatus according to an embodiment of the present invention.
5 is a conceptual diagram schematically showing a state in which the operation device of the power transmission device and the inclined gear member are connected according to an embodiment of the present invention.
6 is an enlarged view of part C of FIG. 5.

Hereinafter, an embodiment of a power transmission device according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a conceptual diagram schematically showing a power transmission device according to an embodiment of the present invention, and FIG. 2 is an enlarged view of part A of FIG. 1.

1, 2, the power transmission device 1 according to an embodiment of the present invention is the intermittent pulley 10, the magnetic force control device 20, the operating device 30, the removable disk 40, the connection It includes a shaft portion 50, an inclined gear member 60, a magnetic force reinforcing device 70, and a contact reinforcing material 80.

The intermittent pulley 10 is rotated in connection with the driving of the actuator 2. The magnetic force adjusting device 20 is installed on the intermittent pulley 10 and has a structure of an electromagnet whose magnetic force is controlled by electric current. The operation device 30 is disposed on one side of the intermittent pulley 10, and is operated by receiving rotational force.

The removable disk 40 is disposed on the other side of the intermittent pulley 10, and is detached from the pulley by the operation of the magnetic force adjusting device 20. The connecting shaft portion 50 is connected to the central portion of the removable disk 40, and is disposed on the coaxial with the intermittent pulley 10. Inclined gear member 60 is coupled to the connecting shaft portion 50 with an inclined gear tooth 63, interlocked with the movement of the removable disk 40 and the connecting shaft portion 50 to the operating device 30 Are engaged.

The magnetic force reinforcing device 70 is installed in the intermittent pulley 10, is disposed at a position opposite to the magnetic force regulating device 20, and the magnetic force is controlled by the current. The contact reinforcing material 80 is coupled to at least one of the intermittent pulley 10 and the removable disk 40, including a material that generates frictional force, and controls the magnetic force on the contact portion between the intermittent pulley 10 and the removable disk 40 It is arranged so as not to interfere with the copper wire of the device 20.

1 and 2, the intermittent pulley 10 according to an embodiment of the present invention is a pulley body portion 11, a magnet installation portion 12, a guide shaft portion 13, a magnetic force opening portion 14 Includes.

The pulley body portion 11 is a device portion that rotates in conjunction with the actuator 2, has a circular outer surface shape, and is disposed facing the detachable disc 40. One side of the pulley body portion 11 facing the detachable disk 40 has a disc shape. The pulley body portion 11 may be connected via an actuator 2 and a belt member.

The magnet installation part 12 is a device part in which the magnetic force adjusting device 20 is accommodated, and is formed to be hollow on the pulley body part 11. The magnet installation portion 12 is formed of a casing structure having a shape corresponding to the magnetic force adjusting device 20, and is formed around a rotation axis of the pulley main body portion 11, that is, a plurality is disposed at regular intervals. Accordingly, when the pulley body portion 11 is rotated, it is possible to prevent the center of gravity from being biased on one side of the pulley body portion 11 by the magnetic force adjusting device 20 and secure structural stability.

The guide shaft portion 13 is a device portion for guiding the contact shaft portion 50, and is formed to extend toward the operation device 30 in the central portion of the pulley body portion 11. The guide shaft portion 13 has a pipe shape through which the connection shaft portion 50 can penetrate, and one end portion is connected to the rotation center portion of the pulley body portion 11.

The magnetic force opening part 14 is a device part for solving that the magnetic force generated by the magnetic force regulating device 20 interferes with the pulley body part 11 and thus the moving force with respect to the removable disk 40 is reduced, the pulley body part ( 11) It is formed to penetrate. The magnetic force opening portion 14 is formed to be opened between the magnet installation portion 12 and the removable disk 40. The magnetic opening part 14 may be arranged in groups of a plurality having a smaller width than the magnet installation part 12 to the magnetic force adjusting device 20. Accordingly, the stiffness of the pulley main body portion 11 can be minimized by forming the magnetic force opening portion 14, and the support structure for supporting the magnetic force adjusting device 20 can be stably maintained.

3 is a bottom view showing a driven gear member of a power transmission device according to an embodiment of the present invention and a B-B 'line developed view, and FIG. 4 is an inclined gear member of a power transmission device according to an embodiment of the present invention It is a plan view and a side view.

1 and 2, the operation device 30 according to an embodiment of the present invention includes a driven gear member 31 and the operation unit 37.

The driven gear member 31 is a device part that is gear-connected with the inclined gear member 60, and the inclined gear member 60 and the driven gear member 31 have a relationship between the main gear and the driven gear. The driven gear member 31 is meshed with the inclined gear member 60, and is not limited to a specific structure and shape, including helical gears, bevel gears, internal gears, etc., if rotational force can be transmitted from the inclined gear member 60. . 2 to 4, the driven gear member 31 according to an embodiment of the present invention has a structure of an internal gear, and includes a ring part 32, an internal gear part 33, and a guide guide part 36. Includes.

The ring portion 32 has a ring shape and is disposed coaxially with the inclined gear member 60. The name of the ring portion 32 means that the inclined gear member 60 includes a ring-shaped device portion that can be inserted, and is not intended to limit the overall shape of the ring portion 32 to a ring shape. The ring portion 32 may have a disk shape or the like.

The internal gear portion 33 is formed to be hollow at the inner circumference of the ring portion 32, and a plurality of internal gear teeth having a shape corresponding to the gear teeth 63 formed on the inclined gear member 60 are spaced at a predetermined interval. Is arranged and formed. More specifically, the inscribed gear portion 33 includes a first inscribed gear 34 and a second inscribed gear 35 disposed adjacent to each other at a predetermined interval from the first inscribed gear 34, This arrangement continues along the inner circumference of the ring portion 32.

The guide unit 36 is a device for guiding the gear teeth 63 of the inclined gear member 60 to the first internal gear 34 or the second internal gear 35, the first internal gear ( 34) and the second internal gear 35 is formed to be inclined. More specifically, as shown in (b) of FIG. 3 (b), the inlet guide part 36 is drawn inwardly toward the second inward gear 35 from the lower end of the first inward gear 34, that is, It forms an inclined surface inclined upward.

FIG. 3 (a) is a bottom view showing the driven gear member 31, and FIG. 3 (b) is B to B in the rotation center of the driven gear member 31 shown in FIG. 3 (a). 'It is a development view looking at the position, that is, looking in the direction of the arrow. In (b) of FIG. 3, the boundary between the first circumferential gear 34 and the second circumferential gear 35 when the lead-in guide portion 36 is not formed is indicated by a dotted line. In addition, there is shown a structure in which the guide portion 36 is inclined to be drawn in from the first internal gear 34 to the second internal gear 35 side by a depth corresponding to d.

When the inclined gear member 60 moves upward in the state as shown in FIGS. 1 and 2, the gear value 63 is accurately drawn into the first internal gear 34 or the second internal gear 35. However, the gear teeth 63 or the internal gear portion 33 may not be positioned at the same angle due to idling of the driven gear member 31 or the removable disk 40.

In this case, when the inclined gear member 60 moves upward, the gear teeth 63 come into contact with the inlet guide portion 36, and naturally the inclined surface of the inlet guide portion 36 by the upward force transmitted from the removable disk 40 Ride through the second internal gear 35. At this time, the driven gear member 31 is preferably freely rotated by an angle corresponding to the inclination angle and the extension length of the gear teeth 63, the slip distance of the inlet guide portion 36.

The operation unit 37 is operated by receiving the rotational force of the driven gear member 31. As the operation unit 37, various devices that are operated by rotational force may be applied, including a compressor of an air conditioning device installed in a vehicle, and the like, and are not limited to a specific structure and shape, including well-known techniques, and thus detailed description Is omitted.

1 and 2, the connection shaft portion 50 according to an embodiment of the present invention includes an extension shaft portion 51 and an anti-separation stopper portion 52.

The extension shaft portion 51 is connected to the rotational center portion of the removable disk 40, and is formed to extend toward the operation device 30 side. The extension shaft portion 51 extends through the guide shaft portion 13, and an inclined gear member 60 is coupled to an end portion passing through the guide shaft portion 13. The extension shaft portion 51 and the inclined gear member 60 are integrally connected to the removable disk 40, and are moved and rotated at the same displacement as the removable disk 40.

The departure preventing stopper portion 52 is for limiting the moving distance of the extension shaft portion 51 and the removable disk 40, and is formed at an end of the extension shaft portion 51 with an extended width than the inner diameter portion of the guide shaft portion 13 do. When the detachable disk 40 moves away from the intermittent pulley 10, further movement is prevented when the detachment preventing stopper portion 52 is caught by the guide recess 13 of the intermittent pulley 10. In addition, by forming the anti-separation stopper portion 52, when the detachable disk 40 is spaced from the intermittent pulley 10, the inclined gear member 60 coupled to the end portion of the extension shaft portion 51, the guide shaft portion 13 It can be prevented from being caught or damaged.

4 (a) is a plan view showing the inclined gear member 60, and FIG. 4 (b) is a front view showing the inclined gear member 60. 4, the inclined gear member 60 according to an embodiment of the present invention includes a gear body portion 61, an inclined gear portion 62, and a damage prevention portion 64.

The gear body portion 61 has a circular outer surface portion and is coupled and fixed to an end portion of the connecting shaft portion 50. The inclined gear portion 62 is formed on the outer periphery of the gear body portion 61 and has a gear value 63 that is inclined with respect to the central axis of the gear body portion 61. The inclined gear portion 62 may be formed in a screw shape in a spiral. As the inclined gear member 60, a helical gear, a bevel gear, or the like can be applied.

When the spur gear is coupled to the end portion of the connecting shaft portion 50, the axial direction (up and down direction in Fig. 1, the extending direction of the connecting shaft portion 50, the inclined gear due to vibration acting during rotation, the weight of the removable disk 40, etc.) The detachment force in the rotational axis direction of the member 60 and the same direction as the rotational axis direction of the driven gear member 31 may act, whereby the spur gear flows in the axial direction, and there is a possibility that it will escape to the outside. In particular, as the rotation speed is lower, the contact force between the spur gear and the driven gear member 31 is reduced correspondingly, and the above-described phenomenon may occur.

According to the present invention, the inclined gear member 60 of the inclined gear member 60 is caught by the inward gear part 33 of the driven gear member 31 and the movement in the axial direction interferes with the inclined gear member 60. It is prevented that the member 31 deviates from the outside. Accordingly, even when the inclined gear member 60 and the driven gear member 31 are rotated at a low speed, it is possible to maintain a stable interconnection between the magnetic gear member 60 and the driven gear member 31.

The damage prevention unit 64 is a device unit for preventing the driven gear member 31 from being damaged by the inclined gear unit 62 when the inclined gear member 60 contacts the driven gear member 31. The damage preventing portion 64 is formed at an end facing the driven gear member 31 of the inclined gear portion 62, and the edge portion of the inclined gear portion 62 is chamfered as shown in FIG. 4 (b) or It is formed by rounding. By forming the damage prevention unit 64, it is possible to prevent the driven gear member 31 from being damaged in the process of the inclined gear member 60 being introduced into the driven gear member 31.

5 is a conceptual diagram schematically showing a state in which the operation device of the power transmission apparatus and the inclined gear member are connected according to an embodiment of the present invention, and FIG. 6 is an enlarged view of part C of FIG. 5.

As the magnetic force regulating device 20 has the structure of an electromagnet, when the current flows through the magnetic force regulating device 20, the magnetic force regulating device 20 has magnetism, and if the current does not flow through the magnetic force regulating device 20, magnetic force regulating The device 20 does not have magnetism. In addition, the polarity of the magnetic force adjusting device 20 also varies depending on the direction in which the current flows. When the current flows in the forward direction on the coil, if the N pole is formed at the top and the S pole is at the bottom, when the current flows in the reverse direction, the S pole is formed at the top and the N pole is formed at the bottom.

1 and 2, the detachable disk 40 is spaced at a predetermined interval from the intermittent pulley 10 in a state in which no current flows through the magnetic force regulating device 20, and the inclined gear member 60 is also a driven gear. It is kept away from the member 31. At this time, the rotational force of the actuator 2 is not transmitted to the operating device 30 side, and the operating device 30 is not operating. On the other hand, the actuator 2 is disconnected from the actuator 30, so that the load caused by the actuator 30 is not applied.

When current is supplied to the magnetic force regulating device 20, the magnetic force regulating device 20 becomes magnetic, and as the magnetic force acts on the metal detachable disk 40, the removable disk 40 as shown in FIGS. ) Is in close contact with the intermittent pulley 10, and at the same time, the inclined gear member 60 is moved to the driven gear member 31 side and meshes with the driven gear member 31. At this time, the rotational force of the actuator 2 is transmitted to the driven gear member 31 of the operating device 30 through the intermittent pulley 10, the removable disk 40, the connecting shaft portion 50, and the inclined gear member 60. The operation device 30 is operated by receiving rotational force through the driven gear member 31.

For reference, in a state in which no current is supplied to the magnetic force regulating device 20, that is, as shown in FIGS. 1 and 2, in a state in which the operating device 30 is not operated, the driven gear member 31 is Free rotation is possible, and the current is being supplied to the magnetic force regulating device 20, that is, as shown in FIGS. 5 and 6, the operating device 30 is operating, the driven gear member 31 ) Is a state in which free rotation is not possible due to the connection with the operation unit 37.

The magnetic force reinforcing device 70 has a structure of an electromagnet as in the magnetic force adjusting device 20. The magnetic force reinforcing device 70 is disposed to face the magnetic force regulating device 20, so that the operation in which the detachable disk 40 is in contact with the intermittent pulley 10 or moved to be spaced apart can be made more clearly.

5 and 6, when the inclined gear member 60 and the driven gear member 31 are engaged, the magnetic force regulating device 20 and the magnetic force reinforcing device 70 control currents with different polarities facing each other. Is made. For example, when the current flows in the forward direction in the magnetic force adjusting device 20 and the N pole is formed at the top and the S pole is formed at the bottom, the magnetic force reinforcing device 70 also flows the current in the forward direction, and the N pole is the upper and the S pole is the lower The composition of the current supply is controlled.

At this time, as compared with the case where the magnetic pole reinforcement device 70 is not installed, while the S pole of the magnetic force control device 20 and the N pole of the magnetic force reinforcement device 70 face each other, the removable disk 40 and the intermittent pulley 10 ), A stronger attraction will act. Accordingly, the removable disk 40 is more firmly contacted with the intermittent pulley 10, and at the same time, the movement in which the inclined gear member 60 having the inclined gear portion 62 is introduced into the driven gear member 31 can be stably performed. have.

1 and 2, when the inclined gear member 60 and the operating device 30 are separated, the magnetic force regulating device 20 and the magnetic force reinforcing device 70 have the same polarity to control the current. Is done. For example, when the current flows in the forward direction in the magnetic force adjusting device 20, the N pole is formed at the top and the S pole is formed at the bottom, the magnetic force reinforcing device 70 flows in the reverse direction, the S pole is at the top, and the N pole is at the bottom. The composition of the current supply is controlled.

At this time, as compared with the case where the magnetic pole reinforcement device 70 is not installed while the S pole of the magnetic force regulating device 20 and the S pole of the magnetic force reinforcement device 70 face each other, the detachable disk 40 and the intermittent pulley 10 ), A stronger repulsive force acts. Accordingly, the detachable disk 40 is more clearly and quickly spaced apart from the intermittent pulley 10, and at the same time, the inclined gear member 60 having the inclined gear portion 62 is moved out of the driven gear member 31. Operation can be made stably.

Since the magnetic force adjusting device 20 and the magnetic force reinforcing device 70 have a structure of a known electromagnet, a detailed description of the structure and operation is omitted.

1 and 5, the contact reinforcing material 80 is coupled to the removable disk 40 including a material that generates frictional force. The contact reinforcing material 80 is coupled to one side of the detachable disk 40 facing the intermittent pulley 10, so that the detachable disk 40 is brought into contact with the intermittent pulley 10 in the state of being moved toward the intermittent pulley 10. . The removable disk 40 and the intermittent pulley 10 can be more firmly adhered to and frictionally contacted by the contact reinforcing material 80.

The contact reinforcing material 80 may be applied in a sheet shape, and is disposed not to interfere with the copper wire of the magnetic force adjusting device 20. More specifically, the magnetic force regulating device 20 has a circular copper wire centered on the rotational center axis of the intermittent pulley 10 by rotation of the intermittent pulley 10, inside the circular copper wire of the magnetic force regulating device 20. It is installed in a circular contact formed and a ring-shaped contact formed outside the circular copper wire of the magnetic force adjusting device 20.

Accordingly, it is possible to prevent the magnetic properties of the magnetic force regulating device 20 and the magnetic force reinforcing device 70 from being weakened due to the contact reinforcing material 80 made of a non-metallic material, and the magnetic force of the magnetic force regulating device 20 is detachable. It is possible to prevent unnecessary transmission to other peripheral devices through the disk 40.

According to the power transmission device 1 according to the present invention having the above configuration, while controlling the current supply of the magnetic force adjusting device 20, the removable disk 40 is in contact with the intermittent pulley 10 or to move away At the same time, it is possible to connect or release the inclined gear member 60 connected to the removable disk 40 to the operating device 30 at the same time. By controlling the connection state between the actuator 2 and the operation device 30 as necessary by this action, it is possible to prevent an unnecessary load from acting on the actuator 2.

In addition, according to the present invention, as the inclined gear member 60 has an inclined gear tooth 63, movement in the axial direction is interfered with in the state engaged with the actuator 30, and accordingly, the actuator 30 ) During operation, it is possible to stably prevent the inclined gear member 60 from escaping to the outside of the driven gear member 31.

The present invention has been described with reference to the embodiment shown in the drawings, but this is only exemplary, and those skilled in the art to which the art belongs can various modifications and equivalent other embodiments from this. Will understand. Therefore, the true technical protection scope of the present invention should be defined by the claims below.

1: Power transmission device 2: Actuator
10: intermittent pulley 11: pulley main body
12: magnet mounting portion 13: guide shaft portion
14: magnetic force open unit 20: magnetic force control device
30: operating device 31: driven gear member
32: ring portion 33: internal gear portion
34: first inscribed value 35: second inscribed value
36: guide section 37: operating section
40: removable disk 50: connecting shaft
51: extension shaft portion 52: departure prevention stopper portion
60: inclined gear member 61: gear body portion
62: inclined gear portion 63: gear teeth
64: damage prevention unit 70: magnetic reinforcement device
80: contact reinforcement

Claims (10)

An intermittent pulley that is rotated in connection with driving of the actuator;
A magnetic force adjusting device installed on the intermittent pulley and the magnetic force controlled by the current;
An operation device disposed on one side of the intermittent pulley and operated by receiving rotational force;
A removable disk disposed on the other side of the intermittent pulley and detachable from the pulley by operation of the magnetic force adjusting device;
A connecting shaft portion connected to the central portion of the removable disk and disposed coaxially with the intermittent pulley; And
And an inclined gear member coupled to the connecting shaft portion with a gear tooth having an inclined shape and engaged with the operating device in connection with movement of the detachable disc and the connecting shaft portion.
According to claim 1,
The intermittent loosening,
A pulley body part rotated in connection with the actuator and disposed to face the detachable disk;
It is formed hollow on the pulley body portion, the magnet installation portion is accommodated in the magnetic force adjustment device; And
It is formed in the central portion of the pulley body portion, the power transmission device comprising a; guide shaft portion having a pipe shape through which the connection shaft portion can pass.
According to claim 2,
The intermittent loosening,
And a magnetic force opening portion formed to penetrate through the pulley body portion and opened to open between the magnet installation portion and the detachable disk.
The method of claim 2 or 3,
The connecting shaft portion,
An extension shaft portion connected to the removable disk and extending through the guide shaft portion; And
It is formed at the end of the extension shaft portion, the power transmission device comprising a; departure-preventing stopper portion formed to be wider than the inner diameter portion of the guide shaft portion.
According to claim 1,
The operating device,
A driven gear member gear-connected with the inclined gear member; And
Power transmission device comprising a; operation unit that is operated by receiving the rotational force of the driven gear member.
The method of claim 5,
The driven gear member,
A ring portion disposed coaxially with the inclined gear member;
An internal gear portion formed on the inner circumference of the ring portion and having a first internal gear value corresponding to the gear value and a second internal gear value adjacent to the first internal gear value; And
It is formed between the first circumscribed gear and the second endo gear, and a guide section that forms an inclined surface that is drawn inward toward the second endo gear side from the end of the first endo gear. Power transmission device characterized in that.
The method of claim 1 or 6,
The inclined gear member,
A gear body part coupled to the connection shaft part;
An inclined gear portion formed on an outer circumference of the gear body portion and having a gear value inclined with respect to a central axis of the gear body portion; And
A power transmission device comprising; a damage preventing part formed at an end of the inclined gear part facing the operating device and formed by chamfering or rounding an edge of the inclined gear part.
According to claim 1,
It is installed on the intermittent pulley, is disposed in a position opposite to the magnetic force control device, the magnetic power reinforcing device that is controlled by the magnetic force; power transmission device further comprising a.
The method of claim 8,
When the inclined gear member and the operating device are engaged, the magnetic force regulating device and the magnetic reinforcing device are controlled with currents having different polarities facing each other.
When separating the inclined gear member and the operating device, the magnetic force regulating device and the magnetic force reinforcing device are power transmission devices characterized in that the same polarity is controlled to face each other.
According to claim 1,
A contact reinforcing material coupled to at least one of the intermittent pulley and the removable disk, including a material that generates frictional force, and disposed on the contact portion between the intermittent pulley and the removable disk so as not to interfere with the copper wire of the magnetic force regulating device; Power transmission device characterized in that it further comprises.

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