CN111503173B - Electromagnetic clutch device - Google Patents

Abstract

The present disclosure relates to an electromagnetic clutch device, comprising: a first member including a mount, a first coupling member, and a coil, the first coupling member being rotatably provided around an axis with respect to the mount for outputting power; a second part including a second joint for outputting power; the third component is used for inputting power, is coaxially arranged with the first component and the second component, and is axially positioned between the first component and the second component, the third component comprises a connecting piece, an armature and a combining ring, the combining ring is sleeved outside the connecting piece, the armature is axially arranged on one side of the connecting piece, which faces the first component, a first limiting piece is movably arranged on the armature, and a second limiting piece is arranged on the connecting piece; when the coil is powered off, the first limiting piece is in limiting fit with the second limiting piece, and the combination ring is connected with the second combination piece to output power through the second part; when the coil passes through a first preset electric signal, the limiting fit between the first limiting part and the second limiting part is removed, and the combination ring is connected with the first combination part to output power through the first part.

Description

Electromagnetic clutch device

technical field

The present disclosure relates to the technical field of mechanical transmission, and in particular, to an electromagnetic clutch device.

Background technique

In a mechanical transmission system, the instantaneous separation or coupling of the power end and the driven end is achieved by means of a clutch. Generally, there are two types of tooth claw type and friction plate type. The tooth claw type transmits power through the mutual fitting of the teeth, and the friction plate type transmits power through the friction between the contact surfaces of the friction plate pair.

Both of these two clutches transmit power by forcing the two ends to be compressed by a certain pressing force, and the methods of providing the pressing force are also different. Generally, there are three common types: mechanical fork type, hydraulic type, and electromagnetic type. The mechanical multi-purpose lever mechanism is realized, the hydraulic type requires an additional hydraulic system, and the electromagnetic type only needs pre-embedded wires to realize long-distance control. Therefore, the electromagnetic clutch has a wide range of applications in CNC machine tools, electric vehicles and other machinery.

The electromagnetic clutch in the related art can only realize the instant disconnection and combination of one power output, that is, a single clutch cannot realize the instant disconnection and combination of multiple power outputs. It can be realized that when the installation size and weight of the electromagnetic clutch are strictly required, the electromagnetic clutch cannot meet the requirements.

SUMMARY OF THE INVENTION

The embodiments of the present disclosure provide an electromagnetic clutch device, which can realize the switching output of two paths of power through a single electromagnetic clutch device.

Embodiments of the present disclosure provide an electromagnetic clutch device, including:

The first part includes a mounting seat, a first coupling part and a coil arranged between the mounting seat and the first coupling part, the first coupling part is rotatably arranged around the axis of the electromagnetic clutch device relative to the mounting seat, and is configured to output power;

The second component, including the second joint, is configured to output power; and

a third member configured to receive the input power, disposed coaxially with the first member and the second member and positioned axially between the first member and the second member, the third member including a connector, an armature and a coupling ring, The combination ring is sleeved outside the connecting piece, the armature is axially arranged on the side of the connecting piece facing the first part, the armature is movably provided with a first limiting piece, and the connecting piece is provided with a second limiting piece; wherein ,

When the coil is de-energized, the first limiting member and the second limiting member are limitedly engaged to limit the movement of the coupling ring and the armature toward the direction close to the first part, so that the coupling ring and the second coupling part are coupled through the second part output power;

When the coil is connected to the first preset electrical signal, under the action of the electromagnetic force, the first limiting member releases the limiting cooperation with the second limiting member, and the coupling ring and the armature face toward the first component relative to the connecting member. The direction is moved so that the coupling ring is coupled with the first coupling member, thereby outputting power through the first member.

In some embodiments, when the coil is connected to the second preset electrical signal, under the action of the electromagnetic force, the first limiting member releases the limiting cooperation with the second limiting member, and the coupling ring and the armature are relative to the connecting member Moving toward the direction close to the first component until the coupling ring is disengaged from both the first coupling piece and the second coupling piece; the second preset electrical signal is smaller than the first preset electrical signal.

In some embodiments, the third component further includes a hinge seat, which is arranged on the circumferential side wall of the armature; the second limiting member is arranged on the end surface of the connecting piece facing the armature, and is located radially outside the armature; The first end of the positioning member is rotatably connected with the hinge base, and the second end is configured to cooperate with the first limiting member to limit the position when the coil is de-energized.

In some embodiments, an insert is provided on the first end of the first limiting member radially away from the hinge seat, and the insert can be attracted by the electromagnetic force generated by the energization of the coil, so that the rotation of the first limiting member is released from the contact with the hinge. The limit fit of the second limit piece.

In some embodiments, the second limiting member extends outward from the end face of the armature to form a groove between the second limiting member and the end face of the connecting member, and the first limiting member and the second limiting member In the state of restraint matching, the second end of the first restraint member is embedded in the groove and abuts against the coupling ring.

In some embodiments, a guide groove is provided on the side wall of the second limiting member facing the connecting member, the guiding groove is connected with the notch of the groove, and is configured to guide the first limiting member to escape from the groove and restrict the first limiting member to escape from the groove. A limiter is completely separated from the second limiter.

In some embodiments, the binding loop includes:

an annular portion sleeved on the outside of the connecting piece and movably disposed relative to the connecting piece in the axial direction; and

The first annular extension portion and the second annular extension portion are respectively connected to both ends of the annular portion along the axial direction, the first annular extension portion is used for connecting with the first joint, and the second annular extension portion is used for It is connected with the second combination piece, and an accommodating space is formed between the first annular ring extension and the armature, and the first limiting piece and the second limiting piece are located in the accommodating space.

In some embodiments, the third component further includes a first reset element, disposed between the first limit member and the armature, configured to reset the first limit member to the second limit when the coil is de-energized Parts limit fit.

In some embodiments, the armature has a protrusion in the circumferential direction that has a radial dimension beyond the connector, and the end face of the protrusion remote from the first part abuts against the coupling ring.

In some embodiments, the first part further comprises an output shaft, the output shaft is coaxially connected with the first coupling part and protrudes from a side away from the third part;

The second part further includes a toothed ring coaxially connected to a side of the second coupling member away from the third part; and

The third component also includes an input shaft, a through hole is arranged on the second coupling member along the axial direction, the input shaft is coaxially connected to the connecting member, and protrudes from the through hole and the hole of the gear ring.

In some embodiments, the end face of the armature facing the first component is provided with a receiving hole, the bottom of the receiving hole is provided with a guide hole, the inner diameter of the guide hole is smaller than the receiving hole, and the third component further includes:

The guide member includes a guide column and a limit platform connected to the first end of the guide column, the second end of the guide column is connected to the connecting piece through the guide hole from the accommodating hole, and the guide column is movably arranged in the guide hole; and

The second reset element is sleeved on the guide post and is located between the limiting platform and the bottom of the accommodating hole.

In some embodiments, the axially opposite end surfaces of the coupling ring and the first coupling member are provided with a first matching tooth pair, and the axially opposite end surfaces of the coupling ring and the second coupling member are provided with a second matching tooth pair.

In the electromagnetic clutch device according to the embodiment of the present disclosure, when the coil is de-energized, the first limiting member and the second limiting member are limitedly engaged to limit the movement of the coupling ring and the armature toward the direction close to the first component, so that the coupling ring and the The second coupling piece is connected to output power through the second part; when the coil is connected to the first preset electrical signal, the electromagnetic force makes the first limiting piece release the limit fit with the second limiting piece, and the coupling ring and the armature are opposite to each other When the connecting piece moves toward the direction close to the first part, the coupling ring is coupled with the first coupling part, so as to output power through the first part. The electromagnetic clutch device can reliably realize the switching output of two paths of power, can improve the flexibility of the power output in the transmission system, and reduce the overall weight and installation size of the clutch device.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the attached image:

FIG. 1 is a schematic structural diagram of some embodiments of the disclosed electromagnetic clutch device;

Fig. 2 is the enlarged view of A place in Fig. 1;

3 is a schematic diagram of the state of the electromagnetic clutch device of the present disclosure when the coil is powered off;

4 is a schematic diagram of the state of the electromagnetic clutch device of the present disclosure at the moment when the coil is energized;

FIG. 5 is a schematic diagram of the state of the battery clutch device of the disclosure when the coil is connected to a second preset electrical signal;

FIG. 6 is a schematic diagram of the state of the battery clutch device of the present disclosure when the coil is connected to the first preset electrical signal.

Description of reference numerals

1. The first part; 11. The mounting seat; 12. The first joint part; 121. The annular base part; 122, the sleeve part; 13, the output shaft; 131, the flat key; 16. Coil;

2. The second component; 21. The second joint; 211, the connecting plate; 212, the annular structure; 22, the toothed ring;

3. The third component; 31, the connecting piece; 32, the armature; 321, the protruding part; 322, the receiving hole; 323, the guide hole; 33, the coupling ring; 333, the second ring extension; 34, the input shaft; 35, the hinge seat; 36, the first limiter; 361, the insert; 37, the second limiter; 371, the groove; 381, the first reset element; 382, the second reset element; 39, the guide; 391, the guide column; 392, the limit table.

Detailed ways

The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects, unless explicitly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

Terms such as "first" and "second" appearing in the present disclosure are only for the convenience of description, to distinguish different components with the same name, and do not indicate a sequence or a primary-secondary relationship.

Also, when an element is referred to as being “on” another element, it can be directly on the other element or be indirectly on the other element with one or more intervening therebetween. more intermediate elements. Also, when an element is referred to as being "connected to" another element, it can be directly connected to the another element or be indirectly connected to the another element with one or more intervening elements therebetween an intermediate element. In the following, the same reference numerals refer to the same elements.

The description of orientation or positional relationship indicated by "upper", "lower", "top", "bottom", "front", "rear", "inner" and "outer" etc. is used in the present disclosure, which is only for the purpose of It is for the convenience of describing the present disclosure, rather than indicating or implying that the referred device must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present disclosure. Moreover, the "axial", "circumferential" and "radial" mentioned in the following embodiments are all relative to the electromagnetic clutch device.

In the transmission system, one power input is often connected to two power outputs, and the two outputs are a two-way switching mode. In the related art, two electromagnetic clutches need to be set up to be responsible for one power output respectively. When the weight and installation size are strict, it cannot meet the requirements of use. In view of this, the present disclosure provides an improved electromagnetic clutch to replace the conventional two electromagnetic clutches to reduce the overall weight and size of the battery clutch.

As shown in FIG. 1 , the present disclosure provides an electromagnetic clutch device. In some embodiments, the electromagnetic clutch device includes: a first part 1 , a second part 2 and a third part 3 arranged coaxially, and the third part 3 is located between the first part 1 and the second part 2 in the axial direction. These three components can be independent of each other before being installed in the drive train.

The first component 1 includes a mounting seat 11 , a first coupling member 12 and a coil 16 axially arranged between the mounting seat 11 and the first coupling member 12 , and the first coupling member 12 winds the electromagnetic clutch relative to the mounting seat 11 . The axis of the device is rotatably disposed and configured to output power. The mounting seat 11 may have a ring structure, and the end surface of the mounting seat 11 facing the third component 3 is provided with a ring groove, the coil 16 is arranged in the ring groove, and the coil 16 is powered by the power supply interface 15 provided on the mounting seat 11 .

The first joint 12 includes an annular base portion 121 and a sleeve portion 122. The annular base portion 121 is located at the end of the mounting seat 11 facing the third component 3 and covers the coil 16. The sleeve portion 122 is coaxially connected to the annular base. The radially inner end of the portion 121 extends in the inner hole of the annular base portion 121. A bearing 14 is provided between the mounting seat 11 and the sleeve portion 122. The force is balanced during operation, and at least two bearings 14 can be arranged at intervals along the axial direction. The outer region of the end face of the annular base portion 121 facing the third part 3 in the radial direction can be provided with teeth to form a dog-type electromagnetic clutch, or can be provided as a friction surface to form a friction-type electromagnetic clutch.

The mounting seat 11 and the first coupling member 12 can be made of materials that can be magnetized, such as electric pure iron, so as to form a magnetic circuit around the mounting seat 11 and the first coupling member 12 when the coil 16 is energized.

The second part 2 includes a second joint 21 configured to output power. Depending on the type of the clutch device, the radially outer region of the end face of the second coupling piece 21 facing the third part 3 may be provided with teeth or friction surfaces or the like. The second coupling member 21 may include a connecting disc 211 and an annular structure 212 . The annular structure 212 is connected to the radially outer end of the connecting disc 211 and is used for coupling with the coupling ring 33 . The connection force between the second joints 21 . Optionally, the connecting plate 211 and the annular structure 212 are designed as an integral structure.

The third component 3 is configured to receive input power. As shown in FIGS. 1 and 2 , the third part 3 includes a connecting piece 31 , an armature 32 and a coupling ring 33 . The connecting piece 31 can be connected to the input shaft 34 , the axial position of the connecting piece 31 is fixed during the working process, the coupling ring 33 is sleeved outside the connecting piece 31 , and the connecting piece 31 can be of annular or disc-shaped structure. The armature 32 is axially disposed on the side of the connecting piece 31 facing the first component 1 , the armature 32 is movably provided with a first limiting piece 36 , and the connecting piece 31 is provided with a second limiting piece 37 . Depending on the type of the clutch device, teeth or friction surfaces, etc. may be provided on the radially outer regions of the two axial end faces of the coupling ring 33 .

The armature 32 and the coupling ring 33 can be made of materials that can be magnetized, such as electric pure iron, so as to attract the armature 32 and the coupling ring 33 to move toward the first part 1 by the electromagnetic force generated when the coil 16 is energized, so that the coupling ring 33 It is coupled with the first coupling member 12 . The "coupling" mentioned here refers to the ability to transmit input power by means of tooth engagement and friction.

As shown in FIG. 3 , when the coil 16 is de-energized, the first limiting member 36 and the second limiting member 37 are limitedly engaged to limit the movement of the coupling ring 33 and the armature 32 toward the direction close to the first component 1 , so that the The coupling ring 33 is coupled with the second coupling member 21 , and the coupling ring 33 is disengaged from the first coupling member 12 , and the power is output only through the second component 2 .

As shown in FIG. 1 , the armature 32 has a protruding portion 321 whose radial dimension extends beyond the connecting piece 31 in the circumferential direction. Since the position of the connecting member 31 remains unchanged, the first limiting member 36 and the second limiting member 37 can be positioned to fix the position of the armature 32 . Further, under the abutting action of the protruding portion 321, the coupling ring 33 also keeps the position fixed. At this time, the coupling ring 33 is reliably coupled to the second coupling member 21 , and power can be output through the second member 2 .

When the coil 16 is supplied with the first preset electrical signal, for example, the first preset current is supplied, under the action of the electromagnetic force, the first limiting member 36 releases the limiting cooperation with the second limiting member 37, and the coupling ring 33 and the armature 32 move toward the direction close to the first part 1 relative to the connecting piece 31 until the coupling ring 33 is coupled with the first coupling piece 12, at this time, the coupling ring 33 is disengaged from the second coupling piece 21, at this time only through the first coupling. One component 1 outputs power.

The electromagnetic clutch device of the present disclosure can selectively output the input power through the first coupling member 12 or the second coupling member 21, and the power output is reliable, which can improve the flexibility of the power output in the transmission system and reduce the overall size of the clutch device. Weight and installation dimensions.

On the basis of this embodiment, as shown in FIG. 5 , when the coil 16 is connected to the second preset electrical signal, under the action of the electromagnetic force, the first limiting member 36 is released from the limiting position with the second limiting member 37 . The coupling ring 33 and the armature 32 move in a direction close to the first component 1 relative to the connecting member 31 until the coupling ring 33 is disengaged from the first coupling member 12 and the second coupling member 21, that is, the coupling ring 33 is in the axial direction. There are gaps between the two end faces of the 12 and the first combining part 12 and the second combining part 21 respectively; the second preset electrical signal is smaller than the first preset electrical signal. For example, a first preset current is supplied to the coil 16 , and the second preset current is smaller than the first preset current.

When the electromagnetic clutch device of the present disclosure is supplied with the second preset electrical signal, the limit cooperation between the first limiting member 36 and the second limiting member 37 can be invalidated, and the coupling ring 33 and the armature 32 can reach the middle of the magnetic force. position, enter the neutral state, and neither the first coupling part 12 nor the second coupling part 21 outputs power. Thus, the electromagnetic clutch device can be switched between neutral, the first power output and the second power output.

As shown in FIG. 2 , the third component 3 further includes a hinge seat 35 , which is arranged on the circumferential side wall of the armature 32 ; the second limiting member 37 is arranged on the end surface of the connecting piece 31 facing the armature 32 and is located at the end of the armature 32 . The radial outer side; the first end of the first limiting member 36 is rotatably connected with the hinge seat 35 in a plane passing through the axis, and the second end is configured to cooperate with the first limiting member 36 to limit the coil 16 when the power is turned off. bit.

In this embodiment, the first limiting member 36 is switched between the two states of limiting and releasing the limiting in a rotational manner, which can save the axial space of the electromagnetic clutch and can reliably perform state switching. Optionally, the first limiting member 36 can also be switched between two states of limiting and releasing the limiting by means of axial movement.

As shown in FIG. 2 , an insert 361 is provided on the first end of the first limiting member 36 radially away from the hinge seat 35 . The position member 36 is rotated to release the position-limiting cooperation with the second position-limit member 37 . For example, the insert 361 can be made of a material that can be magnetized, such as electric pure iron, and the rest of the first limiting member 36 except the insert 361 can be made of a material that does not have magnetization properties.

Since the insert 361 is located at a position where the first limiting member 36 is far from the hinge seat 35, when the coil 16 is energized, it only attracts the top of the first limiting member 36, and can attract the first limiting member 36 with a small electromagnetic force. The position member 36 rotates, and can reduce the radial force exerted on the rotating shaft between the first position limit member 36 and the hinge seat 35, making the rotation more flexible and improving the reliability of the state switching of the clutch device.

As shown in FIG. 2 , the second limiting member 37 extends outward from the end face of the armature 32 to form a groove 371 between the second limiting member 37 and the end face of the connecting member 31 . The second end of the first limiting member 36 is inserted into the groove 371 and abuts against the coupling ring 33 in a state of limited engagement with the second limiting member 37 . For example, the first limiting member 36 is a trigger, and the second limiting member 37 is a hook.

On this basis, as shown in FIG. 5 , a guide groove 372 is provided on the side wall of the second limiting member 37 facing the connecting member 31 . The guide groove 372 is connected with the notch of the groove 371 and is configured to guide the first The limiting member 36 escapes from the groove 371 , and restricts the first limiting member 36 from being completely separated from the second limiting member 37 .

Specifically, the portion of the guide groove 372 adjacent to the notch has a first inclined surface to guide the first stopper 36 to escape from the groove 371 , and the portion of the guide groove 372 away from the notch is provided with a second inclined surface, and the second inclined surface is connected to the first inclined surface. The inclined surfaces are connected, and the inclination angle of the second inclined surface relative to the axis increases, so as to limit the first limiting member 36 to completely separate from the second limiting member 37, so that the first limiting member 36 can easily enter the concave again after the coil 16 is powered off. Slot 371.

By arranging the groove 371 and the guide groove 372 on the second limiting member 37 , the smoothness and reliability of the clutch device when switching between different states can be improved.

As shown in FIG. 1 , the coupling ring 33 includes: an annular portion 331 sleeved outside the connecting member 31 and movably disposed relative to the connecting member 31 in the axial direction; and a first annular extension portion 332 and a second annular portion 332 The ring extension parts 333 are respectively connected to the two ends of the ring part 331 in the axial direction, the first ring extension part 332 is used for connecting with the first coupling part 12 , and the second circular ring extension part 333 is used for connecting with the second coupling part 21 is connected, and an accommodating space Q is formed between the first annular extension portion 332 and the armature 32 , and the first limiting member 36 and the second limiting member 37 are located in the accommodating space Q.

This embodiment can make full use of the radial space between the armature 32 and the coupling ring 33 to set the first limiting member 36 and the second limiting member 37, so that the structure in the battery clutch device is more compact and the space occupied during installation is reduced ; And the first limiting member 36 and the second limiting member 37 are arranged on the radially inner side of the first annular extension portion 332, which can prevent foreign matter from entering the groove 371 during the use of the battery clutch device, ensuring that the working state of the clutch can be Reliable switching.

As shown in FIG. 2 , the third component 3 further includes a first reset element 381 , which is provided between the first limiting member 36 and the armature 32 and is configured to reset the first limiting member 36 when the coil 16 is de-energized. In order to limit cooperation with the second limiting member 37 , specifically, the second end of the first limiting member 36 enters the groove 371 .

As shown in FIG. 6 , the end face of the armature 32 facing the first component 1 is provided with a receiving hole 322 , and the bottom of the receiving hole 322 is provided with a guide hole 323 , and the inner diameter of the guide hole 323 is smaller than the receiving hole 322 , and the third component 3 further includes: The guide member 39 includes a guide post 391 and a limiting platform 392 connected to the first end of the guide post 391. The second end of the guide post 391 passes through the guide hole 323 from the accommodating hole 322 and is connected to the connector 31. The guide post 391 and a second reset element 382, sleeved on the guide post 391, and located between the limit platform 392 and the bottom of the accommodating hole 322, used to reset the armature 32, and further, the armature 32 pushes the coupling ring 33 to return to be coupled with the second coupling member 21 through the protruding portion 321 .

In practice, a plurality of second reset elements 382 can be arranged at intervals in the circumferential direction to provide a balanced reset force for the armature 32 and the coupling ring 33, and the limit matching structure formed by the first limit member 36 and the second limit member 37 is also A plurality of them can be arranged at intervals in the circumferential direction to provide a balanced limiting effect for the armature 32 and the coupling ring 33 , and the second reset elements 382 and the limiting matching structures can be alternately arranged in the axial direction.

On the basis of the above embodiment, the first component 1 further includes an output shaft 13 which is coaxially connected to the first coupling member 12 and protrudes from a side away from the third component 3 . Specifically, the output shaft 13 is inserted into the sleeve portion 122 of the first coupling member 12 for cooperation, for example, the output shaft 13 may be connected by a flat key 131 or a spline or the like. The second part 2 also includes a toothed ring 22, which is coaxially connected to the side of the second coupling part 21 away from the third part 3. For example, the toothed ring 22 can be provided with at least one of internal teeth or external teeth, so as to be connected with the Other gears mesh to transmit power. The third component 3 further includes an input shaft 34 , the second coupling member 21 is provided with a through hole in the axial direction, the input shaft 34 is coaxially connected to the connecting member 31 and protrudes from the through hole and the hole of the gear ring 22 . For example, one end of the input shaft 34 connected to the connecting member 31 may adopt a disk-shaped structure, so as to facilitate the connection of the ends of the connecting member 31 and provide a connecting area.

Since the third member 3 is provided between the first member 1 and the second member 2, the input shaft 34 is protruded from the through hole of the second coupling member 21 and the hole of the gear ring 22, so that the diameter of the electromagnetic clutch device can be reduced. to size.

Optionally, the first coupling member 12 can also output power by connecting a gear ring on its outer circumference, the second coupling member 21 can also be connected with an output shaft to output power, and the coupling ring 33 can also receive input power by connecting a gear ring on its outer circumference, etc. .

In the above-mentioned embodiment, the electromagnetic clutch device is a jaw type electromagnetic clutch, the end face of the coupling ring 33 and the first coupling member 12 opposite in the axial direction is provided with a first matching tooth pair, and the coupling ring 33 and the second coupling member 21 are along the The axially opposite end faces are provided with a second pair of mating teeth.

Alternatively, the electromagnetic clutch device is a friction-type electromagnetic clutch, the end faces of the coupling ring 33 and the first coupling member 12 opposite in the axial direction are respectively provided with first matching friction surfaces, and the coupling ring 33 and the second coupling member 21 are axially opposite to each other. The end surfaces are respectively provided with second matching friction surfaces.

The working principle of the battery clutch device of the present disclosure will be described below with reference to FIGS. 3 to 6 . 3 to 6 only show the structural views on one side of the axis, in order to reflect the first reset element 381 and the second reset element 382 at the same time, the second reset element 382 is shown in the section where the first reset element 381 is located. The electromagnetic clutch device receives power input through the input shaft 34 and has three working states:

1. The first state:

As shown in FIG. 4 , the coil 16 is in a power-off state and does not generate a magnetic field. Under the action of the first reset element 381 , the first limiting member 36 is embedded in the groove 371 to axially limit the armature 32 and the coupling ring 33 . position, the coupling ring 33 is connected with the second coupling member 21, the rotation of the input shaft 34 drives the third component 3, the second coupling member 21 and the toothed ring 22 to rotate, so as to output the output through the toothed ring 22 on the right side of the second coupling member 21 power.

Since the elastic effect of the second reset element 382 is weak, the first limiter 36 and the second limiter 37 can provide sufficient pressing force for the power transmission of the ring gear 22 through the limit cooperation of the first limiter 36 and the second limiter 37, thereby improving the reliability of power transmission. sex.

2. The second state:

When the coil 16 is connected to the first preset electrical signal, a first magnetic field is generated, and the insert 361 on the first limiter 36 overcomes the force of the first reset element 381 under the action of the electromagnetic force, and wraps around the magnetic field on the hinge seat 35 The rotating shaft rotates to make the second end of the first limiting member 36 come out from the groove 371 . FIG. 4 is a schematic diagram of the state at the moment of power-on.

As shown in FIG. 5 , the second end of the first limiting member 36 escapes from the groove 371 and moves outward along the first inclined surface of the guide groove 372 until the second inclined surface is limited and stops rotating. At this time, the coordinating effect of the first limiting member 36 and the second limiting member 37 is released, the armature 32 overcomes the action of the second reset element 382 and moves towards the first part 1 under the action of the magnetic force, and the armature 32 and the connecting member 31 There is a gap between them, and the coupling ring 33 also moves towards the first part 1 under the action of the magnetic force until it is coupled with the first coupling part 12 , the rotation of the input shaft 34 will drive the third part 3 , the first coupling part 12 and the output shaft 13 to rotate , so that the power is transmitted through the output shaft 13 connected with the first coupling part 12 .

3. The third state:

Different from the second state, the coil 16 is fed with a second preset electrical signal, which is smaller than the first preset electrical signal, and generates a second magnetic field that is weaker than the first magnetic field.

After the restraining cooperation between the first limiting member 36 and the second limiting member 37 is released, the armature 32 moves toward the first component 1 against the action of the second reset element 382 under the action of the magnetic force, and the armature 32 and the connecting member 31 move toward the first component 1 . There is a gap therebetween, and the coupling ring 33 also moves towards the first part 1 under the action of the magnetic force, until the two end faces of the coupling ring 33 in the axial direction are separated from the first coupling part 12 and the second coupling part 21, and the rotation of the input shaft 34 does not stop. It will be transmitted to the first coupling part 12 and the second coupling part 21, and it is in the neutral state.

The electromagnetic clutch device of the present disclosure is only provided with one set of coils 16, which can realize one input and two selective outputs, integrates the functions of two traditional clutches, and increases the output power of the second component 2 on the right side compared with the traditional clutch. Moreover, the solution of the present disclosure is completely different from the structure in which two sets of coils 16 are provided to simply integrate the two clutches. Moreover, since the power output of the second component 2 is guaranteed by the action of the limiting structure, a larger and more stable torque output can be provided, and when applied to the jaw type electromagnetic clutch, the loss of tooth speed can be prevented. In addition, its layout space and weight are also greatly reduced, which can be reduced by about 40%.

The electromagnetic clutch device provided by the present disclosure has been introduced in detail above. The principles and implementations of the present disclosure are described herein by using specific embodiments, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present disclosure. It should be pointed out that for those skilled in the art, without departing from the principles of the present disclosure, several improvements and modifications can also be made to the present disclosure, and these improvements and modifications also fall within the protection scope of the claims of the present disclosure.

Claims (12)

1. An electromagnetic clutch device, comprising: The first component (1) includes a mounting seat (11), a first combining member (12), and a coil (16) provided between the mounting seat (11) and the first combining member (12), so The first coupling member (12) is rotatably arranged around the axis of the electromagnetic clutch device relative to the mounting seat (11), and is configured to output power; The second component (2), including the second joint (21), is configured to output power; and A third part (3), configured to receive the input power, is arranged coaxially with the first part (1) and the second part (2) and is located axially between the first part (1) and the second part (2). Between the second parts (2), the third part (3) includes a connecting piece (31), an armature (32) and a coupling ring (33), and the coupling ring (33) is sleeved on the connection Outside the component (31), the armature (32) is arranged on the side of the connecting piece (31) facing the first component (1) along the axial direction, and the armature (32) is movably arranged on the side of the connecting piece (31). There is a first limiting piece (36), the connecting piece (31) is provided with a second limiting piece (37), the first limiting piece (36) is provided with an insert (361), the insert (361) The member (361) can be attracted by the electromagnetic force generated by the electrification of the coil (16), so that the first limiting member (36) can be rotated to release the limiting cooperation with the second limiting member (37); wherein , When the coil (16) is powered off, the first limiting member (36) is cooperating with the second limiting member (37) to limit the coupling ring (33) and the armature ( 32) moving toward the direction close to the first part (1), so that the coupling ring (33) is coupled with the second coupling part (21) to output power through the second part (2); When the coil (16) is connected to the first preset electrical signal, under the action of the electromagnetic force, the first limiting member (36) releases the limiting cooperation with the second limiting member (37), And the coupling ring (33) and the armature (32) move toward the direction close to the first component (1) relative to the connecting piece (31) until the coupling ring (33) and the first The joint (12) is coupled to output power through the first component (1). 2. The electromagnetic clutch device according to claim 1, wherein when the coil (16) is connected to a second preset electrical signal, under the action of electromagnetic force, the first limiting member (36) is released from the The limit fit of the second limit piece (37), and the coupling ring (33) and the armature (32) are oriented toward the first part (1) with respect to the connecting piece (31). The direction moves until the coupling ring (33) is disengaged from both the first coupling part (12) and the second coupling part (21); the second preset electrical signal is smaller than the first preset electric signal Signal. 3. The electromagnetic clutch device according to claim 1 or 2, wherein the third component (3) further comprises a hinge seat (35) provided on the circumferential side wall of the armature (32); the first Two limiting members (37) are provided on the end surface of the connecting member (31) facing the armature (32), and are located radially outside the armature (32); the first limiting member (36) The first end of the coil is rotatably connected with the hinge seat (35), and the second end is configured to cooperate with the first limiting member (36) to limit the position when the coil (16) is powered off. 4. The electromagnetic clutch device according to claim 3, wherein the insert (361) is provided at a part of the first end of the first limiting member (36) that is radially away from the hinge seat (35) . 5. The electromagnetic clutch device according to claim 3, wherein the second limiting member (37) extends outward from the end face of the armature (32), so that the second limiting member (37) A groove (371) is formed between the end face of the connecting piece (31), and in the state that the first limiting piece (36) and the second limiting piece (37) are cooperating with each other, the The second end of the first limiting member (36) is inserted into the groove (371) and abuts against the coupling ring (33). 6. The electromagnetic clutch device according to claim 5, wherein a guide groove (372) is provided on the side wall of the second limiting member (37) facing the connecting member (31), and the guide groove ( 372) is connected with the notch of the groove (371), and is configured to guide the first limiting member (36) out of the groove (371) and restrict the first limiting member (36) Completely disengage the second limiting member (37). 7. The electromagnetic clutch device according to claim 1, wherein the coupling ring (33) comprises: an annular portion (331) sleeved on the outside of the connecting piece (31) and movably arranged in the axial direction relative to the connecting piece (31); and The first annular extension portion (332) and the second annular extension portion (333) are respectively connected to both ends of the annular portion (331) along the axial direction, and the first annular extension portion (332) is used for For coupling with the first coupling member (12), the second annular extension portion (333) is used for coupling with the second coupling member (21), and the first annular extension portion (332) An accommodating space (Q) is formed between the armature (32), and the first limiting member (36) and the second limiting member (37) are located in the accommodating space (Q). 8. The electromagnetic clutch device according to claim 1, wherein the third component (3) further comprises a first reset element (381) provided between the first limiting member (36) and the armature (32) ), it is configured to reset the first limiting member (36) to the limit matching with the second limiting member (37) when the coil (16) is powered off. 9. The electromagnetic clutch device according to claim 1, wherein the armature (32) has a protruding portion (321) in the circumferential direction whose radial dimension exceeds the connecting piece (31), the protruding portion (321) ) the end face away from the first part (1) abuts against the coupling ring (33). 10. The electromagnetic clutch device according to claim 1, wherein the first component (1) further comprises an output shaft (13), and the output shaft (13) is coaxially connected with the first coupling member (12) , and protrudes from the side away from the third part (3); The second part (2) further comprises a toothed ring (22), the toothed ring (22) is coaxially connected to the side of the second coupling part (21) away from the third part (3); and The third component (3) further includes an input shaft (34), a through hole is provided on the second coupling member (21) in the axial direction, and the input shaft (34) is coaxially connected to the connecting member ( 31), and protrudes from the through hole and the hole of the toothed ring (22). 11. The electromagnetic clutch device according to claim 1, wherein an accommodating hole (322) is provided on the end surface of the armature (32) facing the first component (1), and a bottom of the accommodating hole (322) is provided with an accommodating hole (322). There is a guide hole (323), and the inner diameter of the guide hole (323) is smaller than the accommodating hole (322), and the third component (3) further includes: A guide member (39), comprising a guide post (391) and a limiting platform (392) connected to a first end of the guide post (391), the second end of the guide post (391) extending from the accommodating hole (322) is connected to the connecting piece (31) through the guide hole (323), and the guide post (391) is movably arranged in the guide hole (323); and A second reset element (382) is sleeved on the guide post (391) and is located between the limiting platform (392) and the bottom of the accommodating hole (322). 12. The electromagnetic clutch device according to claim 1, wherein a first matching tooth pair is provided on the axially opposite end surface of the coupling ring (33) and the first coupling member (12), and the coupling ring (33) A second mating tooth pair is provided on the end face opposite to the second coupling member (21) in the axial direction.

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