Clutch-type motor rotor structure

Abstract

The present invention discloses a clutch-type motor rotor structure, belonging to the technical field of permanent magnet synchronous motors. The clutch-type motor rotor structure of the present invention includes a rotor and a main shaft, and further includes a torque output clutch device arranged between the rotor and the main shaft in a clutch state. The torque output clutch device includes a rotor bracket end face gear, an internal tooth end face gear, an end face gear clutch bearing, and an electromagnetic clutch slider. The internal tooth end face gear, the end face gear clutch bearing, and the electromagnetic clutch slider are integrally arranged. The rotor bracket end face gear is in clutch engagement with the internal tooth end face gear. The internal tooth end face gear and the main shaft are coaxially meshed and arranged together. The rotor bracket end face gear is arranged together with the rotor. A first rotor bracket bearing and a second rotor bracket bearing for supporting the idle rotation of the rotor are further arranged between the main shaft and the rotor. Compared with the prior art, the present invention has the characteristics of simple structure, reliable performance, and high stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of permanent magnet synchronous motors, and more specifically, belongs to a clutch-type motor rotor structure for a permanent magnet synchronous motor. Background Art

[0002] In the existing permanent magnet synchronous motor equipment, there are two common structures for permanent magnet synchronous motor equipment. One is an inner rotor structure with coils outside and permanent magnets inside, and the other is an outer rotor structure with coils inside and permanent magnets outside. However, no matter which structure of the permanent magnet synchronous motor, they all have a common feature, that is, compared with an asynchronous motor of the same specification volume, the torque is larger. With a larger torque, a larger braking or reverse torque is required. However, in the current braking and reverse field, for brakes or reverse brakes with a large torque, as the torque increases, the volume of the brake or reverse brake becomes larger, occupying a large space, and the price becomes more expensive. Moreover, the structure also changes. For example, a hydraulic brake requires a hydraulic station with a certain capacity, which not only has a high procurement cost, occupies a large space, but also requires regular maintenance, increasing the failure points of the entire set of equipment and raising the maintenance cost of the entire set of equipment. Summary of the Invention

[0003] In order to effectively solve the above technical problems, the present invention provides a separable motor rotor structure.

[0004] A clutch-type motor rotor structure of the present invention includes a rotor and a main shaft. It is characterized in that it further includes a torque output clutch device arranged between the rotor and the main shaft in a clutch state. The torque output clutch device includes a rotor bracket end face gear, an internal tooth end face gear, an end face gear clutch bearing, and an electromagnetic clutch sliding member. The internal tooth end face gear, the end face gear clutch bearing, and the electromagnetic clutch sliding member are integrally arranged. The rotor bracket end face gear is in clutch cooperation with the internal tooth end face gear. The internal tooth end face gear and the main shaft are coaxially meshed and arranged together. The rotor bracket end face gear is arranged together with the rotor.

[0005] According to the above-mentioned clutch-type motor rotor structure, preferably, the rotor bracket end face gear is provided with bracket end face teeth that cooperate with the internal tooth end face gear, and the internal tooth end face gear is provided with internal tooth end face teeth that cooperate with the rotor bracket end face gear. The bracket end face teeth and the internal tooth end face teeth cooperate with each other to achieve the clutch between the rotor bracket end face gear and the internal tooth end face gear.

[0006] According to the above-mentioned clutch-type motor rotor structure, preferably, the main shaft is provided with a main shaft outer gear that cooperates with the internal tooth end face gear, and the internal tooth end face gear is provided with an end face gear internal gear that cooperates with the main shaft. The main shaft outer gear and the end face gear internal gear are meshed with each other.

[0007] According to the clutch motor rotor structure described above, preferably, the electromagnetic clutch slider, the end face gear clutch bearing and the internal tooth end face gear are coaxially arranged, the internal tooth end face gear is connected to the end face gear clutch bearing sleeve, and the end face gear clutch bearing is connected to the electromagnetic clutch slider sleeve.

[0008] According to the above-mentioned clutch motor rotor structure, preferably, the internal tooth end face gear is sleeve-connected to the inner ring of the end face gear clutch bearing.

[0009] According to the above-mentioned clutch motor rotor structure, preferably, the outer ring of the end gear clutch bearing is connected to the electromagnetic clutch sliding piece.

[0010] According to the above-mentioned clutch motor rotor structure, preferably, a closing spring is provided between the electromagnetic clutch slider and the housing.

[0011] According to the clutch motor rotor structure described above, preferably, the number of the closing springs is 8.

[0012] According to the above-mentioned clutch motor rotor structure, preferably, the rotor bracket end gear is coaxially arranged with the rotor via a fastener.

[0013] According to the above-mentioned clutch motor rotor structure, preferably, a first rotor support bearing and a second rotor support bearing for supporting the idling of the rotor are further provided between the main shaft and the rotor.

[0014] Compared with the prior art, the present invention has the characteristics of simple structure, reliable performance, high stability, etc. The torque output clutch device in the clutch-type permanent magnet synchronous motor of the present invention makes the rotor and the main shaft a separable structure, and the rotor and the main shaft can move in the same rotation relative to each other or rotate together in a connected body. The rotor and the main shaft can realize the clutch switching of the motor main shaft and the motor rotor at any time through the torque output clutch device. When the permanent magnet synchronous motor needs the main shaft to output torque, the torque output clutch device is closed, and when the permanent magnet synchronous motor needs to reduce speed or stop, the torque output clutch device is separated; after the clutch device is separated, the transmission power source can be cut off, and the permanent magnet synchronous motor enters an idling state, and the motor main shaft is in a non-rotating free state, which provides a better braking and stopping state for the brake or the stop, and at the same time, the adopted or selected braking and stopping equipment can be appropriately reduced in specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1A It is a structural schematic diagram of a separated state of a permanent magnet synchronous motor with a detachable motor rotor structure of the present invention;

[0016] Attached Figure 1BIt is a schematic diagram of the closed state structure of the permanent magnet synchronous motor with a separable motor rotor structure according to the present invention;

[0017] Appendix Figure 2A It is a schematic diagram of the overall exploded structure of the permanent magnet synchronous motor according to the present invention;

[0018] Appendix Figure 2B It is a schematic diagram of the exploded structure of the separable motor rotor structure according to the present invention;

[0019] Appendix Figure 3A It is a schematic diagram of the exploded structure of the separable motor rotor structure according to the present invention;

[0020] Appendix Figure 3B It is a schematic diagram of the structure of the main shaft with an external gear on the main shaft according to the present invention;

[0021] Appendix Figure 3C It is a schematic diagram of the structure of the internal gear end face gear according to the present invention;

[0022] Appendix Figure 3D It is a schematic diagram of the structure of the rotor bracket end face gear according to the present invention;

[0023] Appendix Figure 4A It is a schematic diagram of the first separated state structure of the separable motor rotor structure according to the present invention;

[0024] Appendix Figure 4B It is a schematic diagram of the second separated state structure of the separable motor rotor structure according to the present invention;

[0025] Appendix Figure 4C It is a schematic diagram of the first closed state structure of the separable motor rotor structure according to the present invention;

[0026] Appendix Figure 4D It is a schematic diagram of the second closed state structure of the separable motor rotor structure according to the present invention. Detailed implementation manners

[0027] Figure 1A It is a schematic diagram of the separated state structure of the permanent magnet synchronous motor with a separable motor rotor structure according to the present invention; Figure 1BIt is a schematic diagram of the closed - state structure of the permanent - magnet synchronous motor with a separable motor rotor structure according to the present invention; the clutch - type permanent - magnet synchronous motor of the present invention includes a stator 4, a rotor 3, a main shaft 2, and a housing 5. The rotor 3 is arranged on the main shaft 2, the stator 4 is arranged on the housing 5, the rotor 3 is arranged on the main shaft 2, the stator 4 is fixedly arranged in the housing 5, and the rotor 3 rotates relative to the stator 4. It further includes a torque - output clutch device 1. The torque - output clutch device 1 is connected to the main shaft 2 in a clutch state and is arranged between the main shaft 2 and the rotor 3 in a clutch state. The torque - output clutch device 1 can achieve the separation state and the closed state between the main shaft 2 and the rotor 3. A first rotor - support bearing 301 and a second rotor - support bearing 302 are arranged between the main shaft 2 and the rotor 3. The torque - output clutch device 1 includes a rotor - support end - face gear 101, an internal - tooth end - face gear 102, an end - face - gear clutch bearing 103, and an electromagnetic - clutch slider 104.

[0028] Whether the rotor - support end - face gear 101 and the internal - tooth end - face gear 102 are engaged in transmission cooperation determines whether the rotor 3 outputs torque outward. If the rotor - support end - face gear 101 and the internal - tooth end - face gear 102 are engaged together, the rotor 3 can transmit torque to the main shaft 2, and the rotor 3 and the main shaft 2 rotate together to output torque to the outside. If the rotor - support end - face gear 101 is not engaged with the internal - tooth end - face gear 102, the rotor 3 only idles and cannot transmit torque to the main shaft 2. At this time, the rotor 3 arranged on the first rotor - support bearing 301 and the second rotor - support bearing 302 at both ends, and the rotor - support end - face gear 101 coaxially connected to the rotor 3 can only rotate idly around the main shaft 2 synchronously, and the main shaft 2 cannot obtain any torque from the rotor 3. The rotor 3 cannot output any torque to the outside under this working condition.

[0029] The internal - tooth end - face gear 102 is connected to the end - face - gear clutch bearing 103, and the electromagnetic - clutch slider 104 is connected to the end - face - gear clutch bearing 103. The internal - tooth end - face gear 102, the end - face - gear clutch bearing 103, and the electromagnetic - clutch slider 104 form a whole. The whole of the internal - tooth end - face gear 102, the end - face - gear clutch bearing 103, and the electromagnetic - clutch slider 104 moves left and right along the axial direction of the main shaft 2 to achieve the meshing transmission cooperation between the rotor - support end - face gear 101 and the internal - tooth end - face gear 102. After the electromagnetic - clutch slider 104 is energized and affected by the electromagnetic force, it can overcome the spring force, or when the electromagnetic - clutch slider 104 is not affected by the electromagnetic force and is only affected by the spring force, it drives the internal - tooth end - face gear 102 and the end - face - gear clutch bearing 103 to move left and right reciprocally along the main shaft 2. For example Figure 1AWhen the electromagnetic clutch slider 104 shown is under the action of electromagnetic force and overcomes the spring force, and the electromagnetic clutch slider 104 drives the inner tooth end face gear 102 and the end face gear clutch bearing 103 to move leftward along the main shaft 2, the rotor bracket end face gear 101 and the inner tooth end face gear 102 are disengaged from contact; as Figure 1B When the electromagnetic clutch slider 104 shown is not under the action of electromagnetic force but only under the action of spring force, the electromagnetic clutch slider 104 drives the inner tooth end face gear 102 and the end face gear clutch bearing 103 as a whole to be on the right side of the main shaft 2, then the rotor bracket end face gear 101 and the inner tooth end face gear 102 are engaged and in contact with each other, the end face gear clutch bearing 103 is arranged behind the electromagnetic clutch slider 104, and a hole bearing snap ring is arranged in the electromagnetic clutch slider 104 for limiting and fixing the end face gear clutch bearing 103.

[0030] Whether the rotor 3 outputs torque outward or not, the internal gear 1022 on the end face gear of the internal gear 102 and the external gear 201 on the main shaft 2 are always meshed and matched. At the same time, under the driving action of the electromagnetic force of the electromagnetic clutch slider 104, the internal gear end face gear 102 moves horizontally left and right along the axial direction of the main shaft 2 against the spring resistance of the closing spring 105. The internal gear 1022 on the internal gear end face gear 102 is always meshed with the external gear 201 on the main shaft 2. The tooth surface of the external gear 201 on the main shaft is longer than the tooth surface of the internal gear 1022 on the end face gear of the internal gear. The internal gear 1022 on the end face gear of the internal gear can slide left and right relative to the external gear 201 on the main shaft. Synchronously, the internal gear end face gear 102 can slide left and right relative to the main shaft 2, so that the end face gear 101 of the rotor bracket and the internal gear end face gear 102 can be disengaged and engaged with each other. When the internal gear end face gear 102 moves to be meshed and matched with the end face gear 101 of the rotor bracket under the action of the electromagnetic clutch slider 104 and obtains the output torque, the internal gear end face gear 102 will drive the main shaft 2 to rotate synchronously and output torque to the outside; if the electromagnetic clutch slider 104 does not act on the internal gear end face gear 102 to realize the meshing and matching of the internal gear end face gear 102 and the end face gear 101 of the rotor bracket, at this time the internal gear end face gear 102 cannot obtain the output torque, then the internal gear end face gear 102 will remain stationary synchronously with the main shaft 2. In this working condition, the main shaft 2 cannot output the output torque of the rotor 3 to the outside. As shown in the figure, when the internal gear end face gear 102 slides to the left relative to the main shaft 2, the end face gear 101 of the rotor bracket and the internal gear end face gear 102 are separated from each other, then the rotor 3 and the internal gear end face gear 102 only rotate idly together, and the rotor 3 cannot transmit the torque to the main shaft 2. The rotor 3 and the internal gear end face gear 102 arranged on the first rotor bracket bearing 301 and the second rotor bracket bearing 302 rotate idly around the main shaft 2 together, and the main shaft 2 cannot output any torque to the outside at this time; as shown in the figure, when the internal gear end face gear 102 slides to the right relative to the main shaft 2, the end face gear 101 of the rotor bracket and the internal gear end face gear 102 are in contact with each other, then the rotor 3 transmits the torque to the main shaft 2 through the end face gear 101 of the rotor bracket and the internal gear end face gear 102 that are only matched together, and the rotor 3 and the main shaft 2 rotate together to transmit the torque to the outside.

[0031] The rotor bracket end face gear 101 is provided with bracket end face teeth 1011 that cooperate with the inner tooth end face gear 102, and the inner tooth end face gear 102 is provided with inner tooth end face teeth 1021 that cooperate with the rotor bracket end face gear 101; the rotor bracket end face gear 101 is provided with bracket end face teeth 1011 that cooperate with the inner tooth end face teeth 1021 on the inner tooth end face gear 102, and the inner tooth end face gear 102 is provided with inner tooth end face teeth 1021 that cooperate with the bracket end face teeth 1011 on the rotor bracket end face gear 101. When the end face gear inner gear 1022 on the inner tooth end face gear 102 can slide left and right along the main shaft outer gear 201 on the main shaft 2, the bracket end face teeth 1011 and the inner tooth end face teeth 1021 are mutually engaged; as Figure 1A shown, when the end face gear inner gear 1022 on the inner tooth end face gear 102 slides to the left along the main shaft outer gear 201 on the main shaft 2, the bracket end face teeth 1011 and the inner tooth end face teeth 1021 are disengaged from contact; as Figure 1B shown, when the end face gear inner gear 1022 on the inner tooth end face gear 102 slides to the right along the main shaft outer gear 201 on the main shaft 2, the bracket end face teeth 1011 and the inner tooth end face teeth 1021 are engaged in contact. The effective cooperation between the rotor bracket end face gear 101 and the inner tooth end face gear 102 realizes the separation state and the closed state between the main shaft 2 and the rotor 3, enabling the permanent magnet synchronous motor to have a clutch function.

[0032] The housing 5 includes a housing body 501, a first housing end cover 502, and a second housing end cover 503; the first housing end cover 502 and the second housing end cover 503 are respectively arranged at both ends of the housing body 501. The first housing end cover 502 can be arranged at one end of the housing body 501 through fastening bolts, and the second housing end cover 503 can be arranged at the other end of the housing body 501 through fastening bolts; the first housing end cover 502 and the second housing end cover 503 are respectively provided with a first end cover bearing 303 and a second end cover bearing 304. The first housing end cover 502, the second housing end cover 503, the first end cover bearing 303, and the second end cover bearing 304 are coaxially arranged with the main shaft 2. The first housing end cover 502 and the second housing end cover 503 are respectively provided with the first end cover bearing 303 and the second end cover bearing 304 for supporting the main shaft 2. The first housing end cover 502 has a sliding component limiting chamber 5021 for accommodating the electromagnetic clutch slider 104. The electromagnetic clutch slider 104 drives the inner tooth end face gear 102 and the end face gear clutch bearing 103 to slide left and right as a whole in the sliding component limiting chamber 5021; there are 8 evenly distributed closing springs 105 arranged in the sliding component limiting chamber 5021. According to different actual motor models, the number of the evenly distributed closing springs 105 arranged in the sliding component limiting chamber 5021 can be appropriately adjusted.

[0033] Figure 2A It is a schematic diagram of the overall exploded structure of the permanent magnet synchronous motor of the present invention; Figure 2B It is a schematic diagram of the exploded structure of the separable motor rotor structure of the present invention; Figure 3A It is a schematic diagram of the exploded structure of the separable motor rotor structure of the present invention; Figure 3B It is a schematic diagram of the structure of the main shaft with an external gear on the main shaft of the present invention; the first rotor support bearing 301 and the second rotor support bearing 302 on the main shaft 2 are used to set the two ends of the rotor 3, and the rotor 3 can rotate idly around the common rotation axis of the main shaft 2, the first rotor support bearing 301 and the second rotor support bearing 302; the first end cover bearing 303 and the second end cover bearing 304 on the main shaft 2 are used to set the main shaft 2 on the housing 5, and the main shaft 2 and the rotor 3 can rotate together around the common rotation axis of the main shaft 2, the first end cover bearing 303 and the second end cover bearing 304 to output torque outward.

[0034] Figure 3C It is a schematic diagram of the structure of the internal tooth face gear of the present invention; Figure 3D It is a schematic diagram of the structure of the rotor support face gear of the present invention; the support face teeth 1011 that cooperate with the internal tooth face gear 102 are provided on the rotor support face gear 101, and the internal tooth face teeth 1021 that cooperate with the rotor support face gear 101 are provided on the internal tooth face gear 102; the support face teeth 1011 that cooperate with the internal tooth face teeth 1021 provided on the rotor support face gear 101, and the internal tooth face teeth 1021 that cooperate with the support face teeth 1011 provided on the internal tooth face gear 102 effectively cooperate with each other to realize the separation state and the closed state between the main shaft 2 and the rotor 3, so that the permanent magnet synchronous motor has an automatic clutch function. The internal gear 1022 of the face gear on the internal tooth face gear 102 can slide left and right along the external gear 201 on the main shaft 2, so that the support face teeth 1011 and the internal tooth face teeth 1021 can cooperate with each other.

[0035] The support face teeth 1011 that cooperate with the internal tooth face teeth 1021 provided on the rotor support face gear 101, and the internal tooth face teeth 1021 that cooperate with the support face teeth 1011 provided on the internal tooth face gear 102 effectively cooperate with each other to realize the separation state and the closed state between the main shaft 2 and the rotor 3, so that the permanent magnet synchronous motor has a clutch function. The internal gear 1022 of the face gear on the internal tooth face gear 102 can slide left and right along the external gear 201 on the main shaft 2, so that it can be determined whether the support face teeth 1011 and the internal tooth face teeth 1021 cooperate with each other.

[0036] Figure 4A It is a schematic diagram of the first separation state structure of the separable motor rotor structure of the present invention; Figure 4BIt is the second structural schematic diagram of the separated state of the separable motor rotor structure of the present invention; as Figure 4A and Figure 4B shown, the internal gear 1022 on the end face gear 102 of the internal gear end face gear can slide to the left along the external gear 201 on the main shaft 2. At this time, the electromagnetic clutch slider 104 receives external power, and the electromagnetic force released by the electromagnetic clutch slider 104 overcomes the elastic force of the closing spring 105, causing the electromagnetic clutch slider 104, the end face gear clutch bearing 103, and the internal gear end face gear 102 as a whole to slide axially to the left along the main shaft 2. The closing spring 105 is in a compressed state at this time, causing the bracket end face teeth 1011 and the internal gear end face teeth 1021 to disengage from the contact fit. The disengagement of the bracket end face teeth 1011 and the internal gear end face teeth 1021 results in a separated state between the main shaft 2 and the rotor 3.

[0037] The electromagnetic clutch slider 104 is engaged with the external gear ring of the end face gear clutch bearing 103, and the electromagnetic clutch slider 104 and the external gear ring of the end face gear clutch bearing 103 as a whole do not rotate circumferentially relative to the main shaft 2; the internal gear end face teeth 1021 are engaged with the internal gear ring of the end face gear clutch bearing 103. When the bracket end face teeth 1011 are not in contact with the internal gear end face teeth 1021, the internal gear end face teeth 1021 and the internal gear ring of the end face gear clutch bearing 103 as a whole do not rotate to output torque with the main shaft 2, and the internal gear end face teeth 1021, the internal gear ring of the end face gear clutch bearing 103 as a whole, and the main shaft 2 all remain stationary synchronously.

[0038] Figure 4C It is the first structural schematic diagram of the closed state of the separable motor rotor structure of the present invention; Figure 4D It is the second structural schematic diagram of the closed state of the separable motor rotor structure of the present invention; the bracket end face teeth 1011 provided on the rotor bracket end face gear 101 and engaged with the internal gear end face teeth 1021, and the internal gear end face teeth 1021 provided on the internal gear end face gear 102 and engaged with the bracket end face teeth 1011 effectively cooperate with each other to achieve the clutch function. The torque output clutch device 1 can achieve the separated state and the closed state between the main shaft 2 and the rotor 3. The internal gear 1022 on the internal gear end face gear 102 can slide left and right along the external gear 201 on the main shaft 2, enabling the bracket end face teeth 1011 and the internal gear end face teeth 1021 to cooperate with each other, Figure 4C and Figure 4D in which the bracket end face teeth 1011 and the internal gear end face teeth 1021 are effectively meshed together, resulting in a closed state between the main shaft 2 and the rotor 3.

[0039] such as Figure 4C and Figure 4DThe internal gear 1022 of the face gear on the shown internal gear face gear 102 can slide to the right along the external gear 201 of the main shaft 2. At this time, the electromagnetic clutch slider 104 has no electromagnetic force to overcome the elastic force of the 8 closing springs 105 to make the internal gear face gear 102 closely engage with the rotor bracket face gear 101. The closing springs 105 are in the extended state at this time, so that the bracket face teeth 1011 and the internal gear face teeth 1021 achieve contact fit.

[0040] The electromagnetic clutch slider 104 is engaged with the external gear ring of the face gear clutch bearing 103. The electromagnetic clutch slider 104 and the external gear ring of the face gear clutch bearing 103 as a whole do not rotate circumferentially relative to the main shaft 2; the internal gear face teeth 1021 are engaged with the internal gear ring of the face gear clutch bearing 103. When the bracket face teeth 1011 and the internal gear face teeth 1021 are in contact fit, the internal gear face teeth 1021 and the internal gear ring of the face gear clutch bearing 103 as a whole can rotate with the main shaft 2 to output torque to the outside world. The internal gear face teeth 1021, the internal gear ring of the face gear clutch bearing 103 as a whole and the main shaft 2 all rotate synchronously.

Claims

1. A clutch-type motor rotor structure, comprising a rotor (3) and a main shaft (2), characterized in that , further comprising a torque output clutch device (1) arranged between the rotor (3) and the main shaft (2) in a disengaged or engaged state. The torque output clutch device (1) includes a rotor bracket end face gear (101), an internal tooth end face gear (102), an end face gear clutch bearing (103), and an electromagnetic clutch slider (104). The internal tooth end face gear (102), the end face gear clutch bearing (103), and the electromagnetic clutch slider (104) are integrally arranged. The rotor bracket end face gear (101) is in clutch engagement with the internal tooth end face gear (102). The internal tooth end face gear (102) and the main shaft (2) are coaxially meshed and arranged together. The rotor bracket end face gear (101) and the rotor (3) are arranged together; The rotor bracket end face gear (101) is provided with a bracket end face tooth (1011) that cooperates with the internal tooth end face gear (102). The internal tooth end face gear (102) is provided with an internal tooth end face tooth (1021) that cooperates with the rotor bracket end face gear (101). The bracket end face tooth (1011) and the internal tooth end face tooth (1021) cooperate with each other to achieve the clutch between the rotor bracket end face gear (101) and the internal tooth end face gear (102); The main shaft (2) is provided with a main shaft outer gear (201) that cooperates with the internal tooth end face gear (102). The internal tooth end face gear (102) is provided with an end face gear internal gear (1022) that cooperates with the main shaft (2). The main shaft outer gear (201) and the end face gear internal gear (1022) are meshed with each other; The electromagnetic clutch slider (104), the end face gear clutch bearing (103), and the internal tooth end face gear (102) are coaxially arranged. The internal tooth end face gear (102) is sleeved and connected with the end face gear clutch bearing (103). The end face gear clutch bearing (103) is sleeved and connected with the electromagnetic clutch slider (104); The internal tooth end face gear (102) is sleeved and connected with the inner ring of the end face gear clutch bearing (103); The outer ring of the end face gear clutch bearing (103) is sleeved and connected with the electromagnetic clutch slider (104); A closing spring (105) is arranged between the electromagnetic clutch slider (104) and the machine housing (5).

2. The clutch-type motor rotor structure according to claim 1, wherein , the number of the closing springs (105) is eight.

3. The clutch-type motor rotor structure according to claim 1, wherein , the rotor bracket end face gear (101) is coaxially arranged with the rotor (3) through a fastener.

4. The clutch-type motor rotor structure according to claim 1, wherein , a first rotor bracket bearing (301) and a second rotor bracket bearing (302) for supporting the idle rotation of the rotor (3) are further arranged between the main shaft (2) and the rotor (3).

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