Integrated electromagnetic clutch structure

Abstract

The utility model discloses an integrated electromagnetic clutch structure which comprises a rotating shaft, a second driving gear, a combination disc, a coil shell, an execution ring inner ring and an execution ring outer ring, the second driving gear is installed on the rotating shaft, and a plurality of roller pins are arranged between the second driving gear and the rotating shaft. The combination disc and the inner ring of the execution ring are both in sliding connection with the rotating shaft in the axial direction, the combination disc is located between the inner ring of the execution ring and the second driving gear and abuts against the second driving gear, and the inner ring of the execution ring is fixedly connected with a push block connected with the combination disc in a clamped mode. The execution ring inner ring is fixedly provided with a magnetic execution ring outer ring, and the coil shell is provided with an electromagnetic coil for driving the execution ring outer ring to move. The utility model has the beneficial effects that the execution ring inner ring and the execution ring outer ring are prevented from accidentally shaking by overcoming the elastic force of the spring, so that the structure is more compact, the effect of convenient installation is achieved, and the advantages of compact structure and better reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch structures, in particular to an integrated electromagnetic clutch structure. Background Art

[0002] The development of new energy vehicles has given people more choices in vehicle powertrain types. The implementation of two-speed and multi-speed powertrain architectures, as well as hybrid vehicle series-parallel architectures, effectively manages powertrain energy, reducing energy consumption and improving efficiency. During gear shifting, the clutch and transmission work together to achieve the shifting function.

[0003] Chinese utility model patent publication number CN111473063B discloses an electromagnetic clutch and clutch assembly, relating to the field of clutch technology. The electromagnetic clutch comprises an active rotating clutch portion and a driven rotating clutch portion rotatably arranged along a first rotational center axis, a clutch bearing, an energized coil, an armature, and a clamping member. The clutch bearing is disposed between the active rotating clutch portion and the driven rotating clutch portion, with a gap defined therebetween. The armature is rotatably disposed about the first rotational center axis, and the clamping member is disposed within the gap and fixedly connected to the armature. With this arrangement, when the energized coil is de-energized, the upper end surface of the armature is pressed against the active rotating clutch portion, the clamping member is retained in the gap, and the active rotating clutch portion, the driven rotating clutch portion, the clamping member, and the armature all rotate synchronously. When the energized coil is energized, the energized coil attracts the armature to move, causing the armature and the energized coil to engage, while simultaneously reducing the friction between the clamping member and the active rotating clutch portion, causing the armature, the clamping member, and the driven rotating clutch portion to stop rotating.

[0004] In the aforementioned electromagnetic clutch and clutch assembly, the armature is located to one side of the energized coil, resulting in an excessively large diameter and volume of the armature structure, making the structure less compact and, in turn, causing the overall volume of the gearbox to be excessively large. During vehicle operation, acceleration and deceleration, uneven terrain, and other factors often cause acceleration in the clutch. The large size of the actuator also results in a heavy weight, making it susceptible to unexpected shaking due to the clutch spring's elastic force during operation, increasing wear on the actuator and even adversely affecting clutch control. Therefore, the electromagnetic clutch structure in the prior art suffers from a less compact structure and poor reliability. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the present utility model is to provide an integrated electromagnetic clutch structure, which includes a rotating shaft, a second drive gear, a coupling disk, a coil housing, an inner ring of an actuator ring and an outer ring of an actuator ring. The integrated electromagnetic clutch structure has the advantages of compact structure and good reliability.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0007] An integrated electromagnetic clutch structure includes a rotating shaft, a second driving gear, a coupling disk, a coil housing, an inner ring of an executing ring and an outer ring of an executing ring. The second driving gear is mounted on the rotating shaft. A plurality of rollers are provided between the second driving gear and the rotating shaft. The coupling disk and the inner ring of the executing ring are both sleeved on the rotating shaft. The coupling disk and the inner ring of the executing ring are both axially slidably connected to the rotating shaft. The coupling disk is located between the inner ring of the executing ring and the second driving gear. The coupling disk is circumferentially clamped to the rotating shaft. The coupling disk abuts against the second driving gear. The inner ring of the executing ring is fixedly connected to a push block clamped to the coupling disk. The inner ring of the executing ring is fixedly mounted with a magnetic outer ring of the executing ring. The coil housing is mounted with an electromagnetic coil that drives the outer ring of the executing ring to move.

[0008] Through such an arrangement: the inner ring and the outer ring of the actuator ring are prevented from accidentally shaking due to overcoming the elastic force of the spring, wear is reduced, and the reliability of the clutch is improved. The outer ring and the inner ring of the actuator ring are both arranged on the inside of the coil housing, making the structure more compact, reducing the space occupied by the coil structure, facilitating installation, and achieving the advantages of compact structure and good reliability.

[0009] Preferably, the rotating shaft is fixedly connected to a baffle, which is located on the side of the coupling disk close to the second driving gear. An elastic member is provided between the baffle and the coupling disk, and a slot for the elastic member to be inserted is provided on the side of the coupling disk close to the baffle.

[0010] This arrangement prevents the coupling disc from accidentally contacting the second drive gear, thereby improving reliability.

[0011] Preferably, a side of the second driving gear close to the coupling disk is provided with an accommodating groove for accommodating a baffle and an elastic member.

[0012] This arrangement prevents the coupling disc from being blocked by the elastic member and the baffle and from being in contact with the second driving gear.

[0013] Preferably, the baffle is engaged with one end of the needle roller.

[0014] This arrangement prevents the needle roller from deviating during rotation, thereby improving reliability.

[0015] Preferably, the rotating shaft is rigidly connected to a first driving gear, the first driving gear is circumferentially engaged with the rotating shaft, and the first driving gear and the baffle are respectively engaged with two ends of the needle roller.

[0016] This arrangement prevents the needle roller from deviating during rotation, thereby improving reliability.

[0017] Preferably, the rotating shaft is equipped with a first bearing and a second bearing, the needle roller and the coupling disk are respectively located on both sides of the baffle, the needle roller, the first drive gear and the first bearing are arranged in sequence in the direction away from the baffle, and the coupling disk, the inner ring of the execution ring and the second bearing are arranged in sequence in the direction away from the baffle.

[0018] Through such an arrangement, the structure is reasonable, the load bearing and force at both ends of the shaft are uniform, and the assembly is convenient.

[0019] Preferably, the first drive gear and the second drive gear have opposite tooth rotation directions.

[0020] This arrangement prevents the first drive gear and the second drive gear from colliding during rotation, thereby improving reliability.

[0021] Preferably, the elastic member is a spring.

[0022] Through such an arrangement, the elastic member drives the coupling disc to move away from the second driving gear.

[0023] Preferably, the rotating shaft is provided with a snap ring, which is snap-engaged with an end of the inner ring of the actuator ring away from the coupling disk.

[0024] Through such a setting, the inner circle of the execution ring is limited.

[0025] Preferably, the coil housing is fixedly connected to a mounting ear, and the mounting ear is provided with a connecting hole.

[0026] With this arrangement, the shaft is rotatably connected to the gearbox housing, and the mounting ears are fixedly mounted on the gearbox through the connection holes. Screws are inserted through the connection holes to facilitate the mounting ears being fixed to the gearbox, thereby facilitating the fixing of the mounting ears and achieving the function of mounting the coil housing on the gearbox.

[0027] Compared with the existing technology, the present invention has achieved beneficial technical effects:

[0028] 1. The present application arranges both the outer ring and the inner ring of the executing ring on the inside of the coil housing, thereby greatly reducing the diameter of the outer ring and the inner ring of the executing ring, thereby reducing the volume and weight of the outer ring and the inner ring of the executing ring, effectively reducing the impact of the outer ring and the inner ring of the executing ring during shaking, and thus preventing the inner ring and the outer ring of the executing ring from accidentally shaking due to the elastic force of the spring, reducing wear, and improving the reliability of the clutch. The outer ring and the inner ring of the executing ring are both arranged on the inside of the coil housing, making the structure more compact, reducing the space occupied by the coil structure, facilitating installation, and achieving the advantages of compact structure and good reliability.

[0029] 2. The inner ring of the actuator ring pushes the clutch to move through the push block, and the volume and weight of the push block are much smaller than those of the inner ring of the actuator ring, which can further reduce the impact of the outer ring and the inner ring of the actuator ring during shaking, thereby preventing the inner ring and the outer ring of the actuator ring from shaking accidentally due to overcoming the elastic force of the spring, thereby improving the reliability of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of an integrated electromagnetic clutch structure in an embodiment of the present utility model;

[0031] Figure 2 It is a structural schematic diagram of the embodiment of the present utility model when the coupling plate is in contact with the second driving gear.

[0032] The technical features indicated by the reference numerals are as follows:

[0033] 11. Rotating shaft; 12. Baffle; 13. First drive gear; 14. First bearing; 15. Second bearing; 16. Snap ring; 21. Second drive gear; 22. Needle roller; 23. Accommodating groove; 31. Combining disk; 32. Elastic member; 33. Snap groove; 41. Coil housing; 42. Inner ring of actuator ring; 43. Outer ring of actuator ring; 44. Push block; 45. Electromagnetic coil; 46. Mounting ear; 47. Connecting hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the present invention is not limited to the following specific embodiments.

[0035] refer to Figure 1 and Figure 2 , an integrated electromagnetic clutch structure, including a rotating shaft 11, a second driving gear 21, a coupling disk 31, a coil housing 41, an inner ring 42 of an actuator ring and an outer ring 43 of an actuator ring.

[0036] The second drive gear 21 is mounted on the rotating shaft 11. The coupling disc 31 and the inner ring of the actuator ring 42 are both sleeved on the rotating shaft 11. The rotating shaft 11 is equipped with a snap ring 16. The snap ring 16 is engaged with the end of the inner ring of the actuator ring 42 away from the coupling disc 31, thereby limiting the position of the inner ring of the actuator ring 42. The coupling disc 31 and the inner ring of the actuator ring 42 are both axially slidably connected to the rotating shaft 11. The coupling disc 31 is located between the inner ring of the actuator ring 42 and the second drive gear 21. The coupling disc 31 is circumferentially engaged with the rotating shaft 11 and abuts against the second drive gear 21. The inner ring of the actuator ring 42 is fixedly connected to a push block 44 engaged with the coupling disc 31. The inner ring of the actuator ring 42 is fixedly mounted with a magnetic outer ring of the actuator ring 43. The inner ring of the actuator ring 42 supports the outer ring of the actuator ring 43. The coil housing 41 is mounted with an electromagnetic coil 45 that drives the outer ring 43 of the actuator ring to move. A mounting ear 46 is fixedly connected to the coil housing 41, and the mounting ear 46 is provided with a connecting hole 47. The rotating shaft 11 is rotationally connected to the housing of the gearbox, and the mounting ear 46 is fixedly mounted to the gearbox via the connecting hole 47. Screws inserted through the connecting hole 47 facilitate the fixing of the mounting ear 46 to the gearbox, facilitating the fixing of the mounting ear 46 and achieving the function of mounting the coil housing 41 on the gearbox. The rotating shaft 11 is fixedly connected to a baffle 12, which is located on the side of the coupling disc 31 close to the second drive gear 21. An elastic member 32 is provided between the baffle 12 and the coupling disc 31. The elastic member 32 is a spring that drives the coupling disc 31 to move away from the second drive gear 21. A slot 33 for the elastic member 32 to engage is provided on the side of the coupling disc 31 close to the baffle 12. When the push block 44 does not push the coupling disc 31 toward the second drive gear 21, the elastic member 32 drives the coupling disc 31 to move away from the second drive gear 21, preventing the coupling disc 31 from accidentally contacting the second drive gear 21, thereby improving reliability. A receiving groove 23 for accommodating the baffle 12 and the elastic member 32 is provided on the side of the second drive gear 21 close to the coupling disc 31. By providing the receiving groove 23, the baffle 12 and the elastic member 32 are located inside the second drive gear 21, making the structure of the baffle 12, the elastic member 32, and the second drive gear 21 more compact. At the same time, the coupling disc 31 is prevented from being blocked by the elastic member 32 and the baffle 12 and unable to contact the second drive gear 21.

[0037] A plurality of needle rollers 22 are disposed between the second drive gear 21 and the rotating shaft 11. These needle rollers 22 are evenly distributed around the circumference of the rotating shaft 11. The needle rollers 22 roll on the rotating shaft 11, enabling the second drive gear 21 to rotate on the rotating shaft 11, acting as bearings. This allows the bearings to be integrated into the second drive gear 21 and the rotating shaft 11, resulting in a more compact structure. A baffle 12 engages one end of the needle roller 22, preventing the needle roller 22 from shifting during rotation and improving reliability. The rotating shaft 11 is rigidly connected to the first drive gear 13, which is circumferentially engaged with the rotating shaft 11. The first drive gear 13 and the baffle 12 respectively engage the ends of the needle roller 22. The first drive gear 13 and the rotating shaft 11 utilize an interference fit. The first drive gear and the baffle 12 limit the ends of the needle roller 22, preventing the needle roller 22 from shifting during rotation and improving reliability. The rotating shaft 11 is equipped with a first bearing 14 and a second bearing 15. The needle roller 22 and the coupling disc 31 are located on either side of the baffle 12. The needle roller 22, the first drive gear 13, and the first bearing 14 are arranged in sequence away from the baffle 12. The coupling disc 31, the inner ring 42 of the actuator ring, and the second bearing 15 are arranged in sequence away from the baffle 12. The coupling disc 31, the inner ring 42 of the actuator ring, and the second bearing 15 are located at the front end of the rotating shaft 11, while the needle roller 22, the first drive gear 13, and the first bearing 14 are located at the rear end of the rotating shaft 11. This rational structure ensures uniform load and force at both ends of the rotating shaft 11, making assembly easier. The tooth profiles of the first drive gear 13 and the second drive gear 21 rotate in opposite directions. Both the first drive gear 13 and the second drive gear 21 are helical cylindrical gears. The teeth of the first drive gear 13 are tilted toward the first bearing 14, while the teeth of the second drive gear 21 are tilted toward the coupling disc 31.

[0038] Specific working process:

[0039] The actuator ring outer ring 43 is made of a magnetically conductive material. In the initial state, the coupling disc 31 is not in contact with the second drive gear 21, allowing the second drive gear 21 to rotate freely on the rotating shaft 11. The rotating shaft 11 then outputs power to the outside through the first drive gear 13. When power is applied to the electromagnetic coil 45, it generates a toroidal magnetic field, which forms a toroidal magnetic field through the coil housing 41 and the actuator ring outer ring 43. Under the action of the toroidal magnetic field, the actuator ring outer ring 43 is subjected to the axial electromagnetic force of the rotating shaft 11 and moves. The actuator ring outer ring 43 drives the push block 44 to move, achieving the function of driving the push block 44 to move. The push block 44 then drives the coupling disc 31 into contact with the second drive gear 21. The friction between the coupling disc 31 and the second drive gear 21 causes the second drive gear 21 to rotate synchronously with the rotating shaft 11, completing the clutch shifting action. As the rotating shaft 11 rotates, power is output to the outside through the second drive gear 21.

[0040] This embodiment has the following advantages:

[0041] In the present application, the outer ring 43 of the execution ring and the inner ring 42 of the execution ring are both arranged on the inner side of the coil housing 41, thereby greatly reducing the diameter of the outer ring 43 of the execution ring and the inner ring 42 of the execution ring, thereby reducing the volume and weight of the outer ring 43 of the execution ring and the inner ring 42 of the execution ring, effectively reducing the impact of the outer ring 43 of the execution ring and the inner ring 42 of the execution ring during shaking, and thus preventing the inner ring 42 of the execution ring and the outer ring 43 of the execution ring from accidentally shaking due to overcoming the elastic force of the spring, reducing wear, and improving the reliability of the clutch. The outer ring 43 of the execution ring and the inner ring 42 of the execution ring are both arranged on the inner side of the coil housing 41, making the structure more compact, reducing the space occupied by the coil structure, facilitating installation, and achieving the advantages of compact structure and good reliability.

[0042] The inner ring 42 of the actuator ring pushes the clutch to move through the push block 44, and the volume and weight of the push block 44 are much smaller than the volume and weight of the inner ring 42 of the actuator ring, which can further reduce the impact of the outer ring 43 of the actuator ring and the inner ring 42 of the actuator ring during shaking, thereby preventing the inner ring 42 and the outer ring 43 of the actuator ring from shaking accidentally due to overcoming the elastic force of the spring, thereby improving the reliability of the clutch.

[0043] The first drive gear 13 and the second drive gear 21 are both helical cylindrical gears, and the tooth profiles of the first drive gear 13 and the second drive gear 21 rotate in opposite directions, so that when the first drive gear 13 is operating, the tooth surface of the first drive gear 13 is subjected to a force tilting in a direction away from the second drive gear 21, so that the first drive gear 13 has a tendency to move away from the second drive gear 21; and when the second drive gear 21 is operating, the tooth surface of the second drive gear 21 is subjected to a force tilting in a direction away from the first drive gear 13, so that the second drive gear 21 has a tendency to move away from the first drive gear 13, thereby preventing the first drive gear 13 and the second drive gear 21 from colliding during rotation, thereby improving reliability.

[0044] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. An integrated electromagnetic clutch structure, characterized in that: The invention comprises a rotating shaft (11), a second driving gear (21), a coupling disc (31), a coil housing (41), an inner ring of an execution ring (42) and an outer ring of an execution ring (43), wherein the second driving gear (21) is mounted on the rotating shaft (11), a plurality of roller needles (22) are provided between the second driving gear (21) and the rotating shaft (11), the coupling disc (31) and the inner ring of the execution ring (42) are both sleeved on the rotating shaft (11), and the coupling disc (31) and the inner ring of the execution ring (42) are both axially slidably connected to the rotating shaft (11). The coupling disc (31) is located between the inner ring (42) of the execution ring and the second drive gear (21); the coupling disc (31) is circumferentially engaged with the rotating shaft (11); the coupling disc (31) abuts against the second drive gear (21); the inner ring (42) of the execution ring is fixedly connected with a push block (44) engaged with the coupling disc (31); the inner ring (42) of the execution ring is fixedly installed with a magnetic outer ring (43); and the coil housing (41) is installed with an electromagnetic coil (45) for driving the outer ring (43) of the execution ring to move.

2. The integrated electromagnetic clutch structure according to claim 1, characterized in that: The rotating shaft (11) is fixedly connected to a baffle (12), and the baffle (12) is located on a side of the coupling disk (31) close to the second driving gear (21). An elastic member (32) is provided between the baffle (12) and the coupling disk (31), and a slot (33) for the elastic member (32) to be inserted is provided on a side of the coupling disk (31) close to the baffle (12).

3. The integrated electromagnetic clutch structure according to claim 2, characterized in that: A receiving groove (23) for receiving the baffle (12) and the elastic member (32) is provided on one side of the second driving gear (21) close to the coupling disk (31).

4. The integrated electromagnetic clutch structure according to claim 2, characterized in that: The baffle (12) is clamped with one end of the roller needle (22).

5. The integrated electromagnetic clutch structure according to claim 4, characterized in that: The rotating shaft (11) is rigidly connected to a first driving gear (13), the first driving gear (13) is circumferentially engaged with the rotating shaft (11), and the first driving gear (13) and the baffle (12) are respectively engaged with two ends of the needle roller (22).

6. The integrated electromagnetic clutch structure according to claim 5, characterized in that: The rotating shaft (11) is equipped with a first bearing (14) and a second bearing (15); the needle roller (22) and the coupling disc (31) are respectively located on both sides of the baffle (12); the needle roller (22), the first driving gear (13) and the first bearing (14) are sequentially arranged in a direction away from the baffle (12); and the coupling disc (31), the inner ring of the actuator ring (42) and the second bearing (15) are sequentially arranged in a direction away from the baffle (12).

7. The integrated electromagnetic clutch structure according to claim 5, characterized in that: The first driving gear (13) and the second driving gear (21) have opposite tooth rotation directions.

8. The integrated electromagnetic clutch structure according to claim 2, characterized in that: The elastic member (32) is a spring.

9. The integrated electromagnetic clutch structure according to claim 1, characterized in that: The rotating shaft (11) is provided with a snap ring (16), and the snap ring (16) is snap-connected with an end of the inner ring (42) of the actuator ring away from the coupling disk (31).

10. The integrated electromagnetic clutch structure according to claim 1, characterized in that: The coil housing (41) is fixedly connected to a mounting ear (46), and the mounting ear (46) is provided with a connecting hole (47).

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