Gear motor

Abstract

The utility model discloses a gear motor, which comprises a motor shell and a speed reducer shell, and the motor shell is provided with a first connecting part and a first connecting surface; a second connecting part and a second connecting surface are arranged on the speed reducer shell, and the second connecting part is riveted with the first connecting part, so that the speed reducer shell is connected with the motor shell; the first connecting face is used for being attached to the second connecting face after the first connecting part and the second connecting part are riveted in place. According to the utility model, the motor shell and the speed reducer shell are riveted to realize connection and attachment of connecting surfaces, so that the use of parts such as screws and the like is avoided, the problem of unstable connection caused by manual missed screwing of the screws can be avoided, the overall size of the device is reduced, and the integration level of the motor and the speed reducer is improved; and meanwhile, external rainwater, dust and other impurities are prevented from entering the motor shell and the speed reducer shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a speed reducer motor. BACKGROUND

[0002] At present, some motors and speed reducers on the market are usually independently arranged, adopt a separate connection structure, arrange flange structures on the motor and the speed reducer respectively, and fix the motor on the speed reducer through connecting pieces such as bolts.

[0003] Although this connection mode can ensure a certain connection strength, it needs more parts to realize the connection, and since it depends on manual assembly, there is a problem of connection falling off in the use process due to missed screwing. At the same time, due to the arrangement of the connection flange structure, the overall volume of the whole device is large. In some application scenarios with strict space requirements, such as small household appliances, precision instruments and equipment, the large volume not only occupies more space, but also may affect the overall layout and portability of the equipment. UTILITY MODEL CONTENTS

[0004] In order to overcome at least one of the defects of the prior art, the utility model provides a speed reducer motor, which realizes connection and connection of the connection surface by riveting the motor shell and the speed reducer shell, eliminates the use of screws and other parts, can avoid the unstable connection problem caused by missed screwing by manual operation, and reduces the overall volume of the device; at the same time, it avoids the entry of external rainwater, dust and other impurities into the interior of the motor shell and the speed reducer shell.

[0005] The utility model adopts the technical scheme to solve the problem:

[0006] A speed reducer motor, comprising,

[0007] A motor shell, the motor shell is provided with a first connecting part and a first connecting surface;

[0008] A speed reducer shell, the speed reducer shell is provided with a second connecting part and a second connecting surface, the second connecting part is riveted with the first connecting part by riveting process, so that the speed reducer shell is connected with the motor shell; the first connecting surface is used for being matched with the second connecting surface after the first connecting part and the second connecting part are riveted in place.

[0009] Therefore, by riveting the motor shell and the speed reducer shell, reliable connection strength can be provided, effectively resisting external forces such as vibration and impact caused by high-speed operation of the motor and torque output of the speed reducer, ensuring stable operation of the speed reducer motor, and reducing the risk of failure caused by loose connection.

[0010] Compared with the traditional flange and bolt connection mode, the application can avoid the unstable connection problem caused by manual missed screwing, and realize the foolproof function. At the same time, due to the reduction of the use of flanges and other connecting parts during connection, the overall structure is more compact and occupies less space. In addition, after the first connecting part and the second connecting part are riveted in place, the first connecting surface and the second connecting surface are attached, which can effectively prevent dust, water vapor and other impurities from entering the motor and the reducer.

[0011] Further, the first connecting surface is provided with a boss, and the first connecting part is protruded on the outer circumferential surface of the boss; the second connecting surface is provided with a notch, and the second connecting part is recessed on the inner circumferential surface of the notch; the boss is used for inserting and assembling with the notch when the first connecting part and the second connecting part are riveted.

[0012] Therefore, the boss on the motor shell and the notch on the reducer shell are inserted and assembled, which plays a positioning role during riveting, and improves the relative position accuracy of the first connecting part and the second connecting part of the motor shell and the reducer shell during riveting.

[0013] Further, the first connecting part includes a circular arc protrusion, and the circular arc protrusion is provided with a first guide surface; the second connecting part includes a circular ring groove, and the circular ring groove has a shaft shoulder on the side close to the second connecting surface, and the shaft shoulder is provided with a second guide surface; the second guide surface and the first guide surface are matched with each other to guide the circular arc protrusion to pass over the shaft shoulder along the second guide surface and / or guide the shaft shoulder to pass over the circular arc protrusion along the first guide surface when the circular arc protrusion and the circular ring groove are riveted.

[0014] Therefore, the first guide surface and the second guide surface provide a guiding effect for the riveting process. During riveting, they can guide the circular arc protrusion to pass over the shaft shoulder along the guide surface, thereby improving the success rate and efficiency of riveting.

[0015] Further, the motor shell is provided with a first limiting part, and the reducer shell is provided with a second limiting part; the second limiting part is used for connecting with the first limiting part to limit the motor shell and the reducer shell in the circumferential direction.

[0016] Therefore, the limiting connection of the first limiting part and the second limiting part can effectively resist the circumferential force caused by torque change, vibration and other factors, and prevent the relative rotation between the motor shell and the reducer shell.

[0017] Further, the boss is provided with a mounting table, and the first limiting part includes a plurality of first limiting teeth, which are arranged on the outer periphery of the mounting table in the circumferential direction, and a first limiting groove is formed between adjacent two first limiting teeth.

[0018] The second limiting part comprises a plurality of second limiting teeth, which are arranged at the inner periphery of the notch in a circumferential direction, and a second limiting groove is formed between two adjacent second limiting teeth; the second limiting teeth are inserted into the first limiting groove, and the first limiting teeth are inserted into the second limiting groove, so that the first limiting teeth and the second limiting teeth are engaged with each other in the circumferential direction.

[0019] Therefore, the plurality of teeth are simultaneously subjected to force, which disperses the impact force caused by the torque and vibration, so that the connection between the motor housing and the reducer housing is more stable, and the stable circumferential limiting ensures that the transmission between the motor and the reducer is more stable.

[0020] Further, the side wall of the first limiting tooth is provided with a first guide slope for guiding the insertion of the first limiting tooth into the second limiting groove; and the side wall of the second limiting tooth is provided with a second guide slope for guiding the insertion of the second limiting tooth into the first limiting groove.

[0021] Therefore, the provision of the guide slope reduces the operation difficulty in the assembly process, so that the initial position does not need to be controlled too accurately when the motor housing is pushed, and the guide slope automatically guides the limiting tooth into the limiting groove, greatly simplifying the assembly operation process and improving the success rate of assembly.

[0022] Further, the reduction motor comprises a protective sleeve, which is sleeved on the outside of the motor housing, and the end of the protective sleeve extends towards the reducer housing and covers the joint of the first connecting surface and the second connecting surface.

[0023] Therefore, by providing the protective sleeve on the outside of the reduction motor, the protective sleeve can prevent rainwater and dust from entering the inside of the motor housing when the reduction motor is used in an outdoor environment, avoiding the corrosion and wear of the internal structure of the motor and the reducer caused by these impurities, thereby prolonging the service life of the reduction motor.

[0024] Further, the motor housing comprises a housing body and an end cover, which is arranged at the end of the housing body away from the reducer housing; and the end cover is clamped with the housing body.

[0025] Therefore, by clamping the end cover with the housing body, the connection of fasteners such as screws is avoided, and the problem of disengagement of the end cover from the housing body caused by missing screws is avoided.

[0026] Further, the housing body is provided with a clamping groove and a limiting groove, and the end cover is provided with a clamping buckle and a limiting block, the limiting block is matched with the limiting groove to circumferentially limit the end cover, and the clamping buckle is clamped with the clamping groove when the limiting block and the limiting groove are connected in place.

[0027] Therefore, through the matched connection of the limiting block and the limiting groove, the circumference of the end cover can be limited, and stable support can be provided for components such as the rotor and the stator in the shell body.

[0028] Further, the speed reducer motor further comprises a motor assembly and a speed reduction gear assembly, the motor assembly is installed in the motor shell, and the speed reduction gear assembly is installed in the speed reducer shell; the motor assembly is provided with a motor shaft, the speed reduction gear assembly is provided with an input end, and the motor shaft is connected with the input end.

[0029] Therefore, by using the speed reduction characteristics of the speed reducer, the high rotating speed of the motor can be reduced to the low rotating speed required by the equipment, so that the requirements of different working scenes on the rotating speed are met. Meanwhile, the riveting part of the motor shell and the speed reducer shell can effectively resist external forces such as vibration and impact caused by high-speed rotation of the motor and torque output of the speed reducer, so that stable operation of the speed reducer motor is ensured.

[0030] In summary, the speed reducer motor provided by the utility model has the following technical effects:

[0031] 1) The motor shell and the speed reducer shell are riveted through the first connecting part and the second connecting part to realize firm connection, the use of screws and other components is avoided, the problem of unstable connection caused by manual missed screwing can be avoided, the foolproof function is realized, and the assembly quality and reliability of the product are improved. Meanwhile, the first connecting surface is attached to the second connecting surface after the first connecting part and the second connecting part are riveted in place, so that external rainwater, dust and other impurities can be prevented from entering the inside of the motor shell and the speed reducer shell.

[0032] 2) The utility model adopts the mode of riveting connection of the motor shell and the speed reducer shell, compared with the traditional flange connection mode, no additional bolts and other connecting pieces are needed, and no complex flange structure needs to be arranged on the shell, so that the overall volume of the device is reduced on the basis of ensuring the connection strength, the integration of the motor and the speed reducer is improved, and the utility model is suitable for application scenes with high requirements on space and integration. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is an overall structural schematic view of the speed reducer motor of the utility model embodiment;

[0034] Figure 2 It is an exploded view of the speed reducer motor of the utility model embodiment;

[0035] Figure 3 It is a structural schematic view of the motor shell of the utility model embodiment;

[0036] Figure 4 It is a structural schematic view of the speed reducer shell of the utility model embodiment;

[0037] Figure 5 It is longitudinal section view of the speed reducer shell of the utility model embodiment;

[0038] Figure 6 It is transverse section view when the motor shell and the speed reducer shell are connected of the utility model embodiment;

[0039] Figure 7 It is longitudinal section view when the motor shell and the speed reducer shell are connected of the utility model embodiment.

[0040] Wherein, the meaning of reference signs is as follows:

[0041] 1, motor shell;11, first connecting part;111, first guide surface;12, first connecting surface;13, boss;14, mounting table;15, first limit tooth;16, first limit slot;17, shell body;171, limit slot;172, clamping groove;18, end cover;181, limit block;182, buckle;183, bottom wall;184, side wall;19, motor assembly;191, motor shaft;2, speed reducer shell;20, connecting flange;21, second connecting part;210, shaft shoulder;211, second guide surface;22, second connecting surface;23, notch;24, second limit tooth;25, second limit slot;26, speed reduction gear assembly;261, output shaft;262, gear set;3, protective sleeve. DETAILED DESCRIPTION

[0042] In order to better understand and implement, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0043] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0045] Reference Figure 1 And Figure 2The utility model discloses a speed reducer motor, it includes motor casing 1 and speed reducer casing 2, specifically, refer to Figure 3 , motor casing 1 is equipped with first connecting portion 11 and first connecting face 12, refer to Figure 4 , speed reducer casing 2 is equipped with second connecting portion 21 and second connecting face 22, wherein, second connecting portion 21 and first connecting portion 11 rivet with riveting process rivet, to make speed reducer casing 2 with motor casing 1 connect.And first connecting face 12 is used to be in first connecting portion 11 and second connecting portion 21 rivet in place after with second connecting face 22 adhere.

[0046] On the basis of this structure, when using the speed reducer motor of the utility model, when assembling, the internal components of motor and speed reducer are assembled in respective casing first, then the speed reducer casing 2 with second connecting portion 21 is aligned with the motor casing 1 with first connecting portion 11, makes two connecting portions align, and makes first connecting face 12 and second connecting face 22 opposite. Then using professional riveting equipment, such as oil press, first connecting portion 11 and second connecting portion 21 are riveted. Specifically, by oil press, appropriate pressure or impact force is applied, two connecting portions are fixed tightly together, the connection of motor casing 1 and speed reducer casing 2 and the adhesion of two connecting faces are completed.

[0047] When the speed reducer motor is connected to the power supply, the motor starts to work, the stator winding in the motor is electrified to generate a rotating magnetic field, which drives the rotor to rotate at high speed. The rotating motion of the motor rotor is transmitted to the speed reducer casing 2 connected to the motor casing 1 through the motor output shaft 261. In the speed reducer, the input high-speed rotating motion is transmitted through the meshing of each gear, and according to the transmission ratio of the speed reducer, the output rotating motion with reduced speed and increased torque is obtained to meet the working requirements of different equipment.

[0048] Therefore, by riveting the motor casing 1 and the speed reducer casing 2, a reliable connection strength can be provided, making them a stable whole. During the operation of the motor, this firm connection can effectively resist external forces such as vibration and impact caused by high-speed operation of the motor and torque output of the speed reducer, ensuring stable operation of the speed reducer motor and reducing the risk of failure caused by loose connection.

[0049] It should be noted that the motor casing 1 and the speed reducer casing 2 are connected by riveting process, which can avoid the instability caused by missed screwing by manual operation compared with the traditional connection method through flange and bolt, realizing the foolproof function. At the same time, the use of flanges and other connecting parts is reduced during connection, making the overall structure more compact and occupying less space. This has obvious advantages in some application scenarios with strict requirements on equipment size, such as small household appliances and precision instruments.

[0050] Further, in the utility model, the reducer housing 2 can be made of aluminum alloy or cast iron material. Preferably, the motor housing 1 is made of engineering plastic. When riveting the reducer housing 2 and the motor housing 1, the oil press is used to apply appropriate pressure or impact force to make the motor housing 1 plastically deform, so that the first connecting part 11 and the second connecting part 21 are fixed together tightly.

[0051] Because the shrinkage of the engineering plastic is small under the influence of temperature, the size stability of the riveting part can be ensured when the temperature changes. For example, in the outdoor use scenario of the motor, the environmental temperature has large day and night difference. The motor housing 1 made of engineering plastic can keep the riveting part tightly combined all the time, prevent the connection from loosening due to thermal expansion and cold shrinkage, maintain the stability of the motor and the reducer connection, and ensure the continuous and stable operation of the equipment.

[0052] When the first connecting part 11 and the second connecting part 21 are riveted in place, the first connecting surface 12 and the second connecting surface 22 are attached, which can effectively prevent impurities such as dust and water vapor from entering the inside of the motor and the reducer. This sealing structure can protect the internal parts of the motor and the reducer, reduce wear and corrosion caused by impurities, and prolong the service life of the equipment.

[0053] Further, referring to Figure 3 , the first connecting surface 12 is provided with a boss 13, and the first connecting part 11 is protruded on the outer peripheral surface of the boss 13. Referring to Figure 4 , the second connecting surface 22 is provided with a slot 23, and the second connecting part 21 is recessed on the inner peripheral surface of the slot 23. Referring to Figure 7 , wherein the boss 13 is used for inserting and assembling with the slot 23 when the first connecting part 11 and the second connecting part 21 are riveted.

[0054] On the basis of this structure, when assembling, the first connecting surface 12 on the motor housing 1 is first brought into close proximity with the second connecting surface 22 of the reducer housing 2, then the boss 13 on the first connecting surface 12 is aligned with the slot 23 of the second connecting surface 22 and inserted, and preliminary positioning is performed. Then, the oil press is used to apply pressure to make the boss 13 and the slot 23 further insert and assemble. In this process, the first connecting part 11 on the boss 13 and the second connecting part 21 on the slot 23 are riveted and connected.

[0055] Therefore, the boss 13 on the motor housing 1 and the slot 23 on the reducer housing 2 are inserted and assembled, which plays a positioning role in the riveting process, improves the relative position accuracy of the first connecting part 11 and the second connecting part 21 when the motor housing 1 and the reducer housing 2 are riveted, and provides a guarantee for reliable riveting.

[0056] Further, referring to Figure 3 and Figure 7, the first connecting part 11 comprises a circular-arc protrusion, and the circular-arc protrusion is provided with a first guide surface 111. Referring to Figure 4 and Figure 5 , the second connecting part 21 comprises a circular-ring groove, and the circular-ring groove is provided with an axial shoulder 210 on the side close to the second connecting surface 22, and the axial shoulder 210 is provided with a second guide surface 211. The second guide surface 211 and the first guide surface 111 are matched with each other, so as to guide the circular-arc protrusion to pass over the axial shoulder 210 along the second guide surface 211 and / or guide the axial shoulder 210 to pass over the circular-arc protrusion along the first guide surface 111 when the circular-arc protrusion and the circular-ring groove are riveted.

[0057] On the basis of the above structure, when assembling, the boss 13 of the first connecting surface 12 of the motor shell 1 is inserted into the notch 23 of the second connecting surface 22 of the reducer shell 2 to preliminarily position them. At this time, the circular-arc protrusion of the motor shell 1 is in a corresponding position with the circular-ring groove of the reducer shell 2.

[0058] When the riveting operation is started, an external force is applied to gradually approach the motor shell 1 and the reducer shell 2. Since the circular-arc protrusion is provided with the first guide surface 111 and the axial shoulder 210 is provided with the second guide surface 211, the second guide surface 211 and the first guide surface 111 are matched with each other in the approaching process. With the continuous action of the external force, the first guide surface 111 slides along the second guide surface 211 to guide the circular-arc protrusion to gradually pass over the axial shoulder 210, so that the circular-arc protrusion is embedded into the circular-ring groove.

[0059] The first guide surface 111 and the second guide surface 211 can be guide bevels or guide circular-arc surfaces. Thus, the first guide surface 111 and the second guide surface 211 provide a guide function for the riveting process. They can guide the circular-arc protrusion to pass over the axial shoulder 210 along the guide surfaces during riveting, thereby improving the success rate and efficiency of riveting.

[0060] In addition, when the circular-arc protrusion passes over the axial shoulder 210 and completes riveting, the circular-arc protrusion is embedded into the circular-ring groove, and the bottom of the circular-arc protrusion and the axial shoulder 210 are axially interlocked to form an interlocking structure. This can further enhance the connection strength between the motor shell 1 and the reducer shell 2, so that they are not easily relatively displaced or separated when subjected to external forces such as vibration and impact, thereby improving the reliability and stability of the whole speed-reducing motor.

[0061] Further, referring to Figure 2 and Figure 3 , the motor shell 1 is further provided with a first limiting part, referring to Figure 4 and Figure 5 , the reducer shell 2 is provided with a second limiting part, and the second limiting part is used to connect with the first limiting part to limit the motor shell 1 and the reducer shell 2 in the circumferential direction.

[0062] On this basis, during assembly, the motor housing 1 and the reducer housing 2 can be brought close to each other, so that the first limiting part and the second limiting part are aligned and connected. After the first limiting part and the second limiting part are connected, the motor housing 1 and the reducer housing 2 are limited in the circumferential direction relative to each other.

[0063] When the reduction motor is in operation, the torque generated by the high-speed rotation of the motor is transmitted to the reducer through the motor shaft 191. In this process, the first limiting part and the second limiting part jointly act to prevent the motor housing 1 and the reducer housing 2 from rotating relative to each other in the circumferential direction.

[0064] In this way, during operation of the motor, the limiting part can effectively resist circumferential forces generated by factors such as torque changes and vibrations, preventing the motor housing 1 and the reducer housing 2 from rotating relative to each other. This stability is crucial for ensuring the normal operation of the reduction motor, reducing failures caused by loose connections, and prolonging the service life of the equipment.

[0065] Further, the boss 13 is also provided with a mounting table 14, and the first limiting part includes a plurality of first limiting teeth 15, as shown in Figure 3 The plurality of first limiting teeth 15 are circumferentially spaced apart on the outer periphery of the mounting table 14, and a first limiting groove 16 is formed between adjacent two first limiting teeth 15. Figure 4 The second limiting part includes a plurality of second limiting teeth 24, which are circumferentially spaced apart on the inner periphery of the slot 23, and a second limiting groove 25 is formed between adjacent two second limiting teeth 24.

[0066] As shown in Figure 6 The second limiting teeth 24 are inserted into the first limiting grooves 16, and the first limiting teeth 15 are inserted into the second limiting grooves 25, so that the first limiting teeth 15 and the second limiting teeth 24 are circumferentially engaged with each other.

[0067] On this basis, during assembly, the motor housing 1 and the reducer housing 2 are brought close to each other, so that the first limiting teeth 15 on the mounting table 14 and the second limiting teeth 24 on the inner periphery of the slot 23 are circumferentially staggered. Then the motor housing 1 is pushed axially, so that the second limiting teeth 24 are gradually inserted into the first limiting grooves 16, and the first limiting teeth 15 are inserted into the second limiting grooves 25.

[0068] At this time, the first limiting part and the second limiting part have achieved a preliminary positioning function, and then an external force can be applied to insert the boss 13 into the slot 23, and the arc protrusions on the outer periphery of the boss 13 are riveted with the circular groove on the inner periphery of the slot 23. In this process, the first limiting part and the second limiting part can also be firmly connected by means of insertion and riveting.

[0069] Thus, the first limiting teeth 15 and the second limiting teeth 24 can effectively resist the circumferential force when the motor is running. Since multiple teeth are simultaneously subjected to force, the impact force caused by torque and vibration is dispersed, making the connection between the motor housing 1 and the reducer housing 2 more stable, and the stable circumferential limiting ensures smoother transmission between the motor and the reducer.

[0070] Further, the side wall of the first limiting tooth 15 is provided with a first guide slope, and the first guide slope is used to guide the insertion of the first limiting tooth 15 into the second limiting groove 25. Correspondingly, the side wall of the second limiting tooth 24 is provided with a second guide slope, and the second guide slope is used to guide the insertion of the second limiting tooth 24 into the first limiting groove 16.

[0071] Wherein, when the motor housing 1 is axially advanced, the first limiting tooth 15 is inserted into the second limiting groove 25, and the second limiting tooth 24 is inserted into the first limiting groove 16, the first guide slope and the second guide slope can play a guiding function. Specifically, when the first limiting tooth 15 approaches the second limiting groove 25, the first guide slope can guide the first limiting tooth 15 into the second limiting groove 25, and even if there is a slight deviation in the initial position, it can also be gradually adjusted in position under the action of the guide slope, realizing accurate insertion. Similarly, the second guide slope can also guide the second limiting tooth 24 to be accurately inserted into the first limiting groove 16.

[0072] Thus, the setting of the guide slope reduces the operation difficulty of the assembly process, so that when the motor housing 1 is advanced, it is not necessary to control the initial position too accurately, and the guide slope will automatically guide the limiting tooth into the limiting groove, greatly simplifying the assembly operation process and improving the success rate of assembly.

[0073] Further, the reduction motor further comprises a protective sleeve 3, and the protective sleeve 3 is sleeved on the outside of the motor housing 1, and the end of the protective sleeve 3 extends towards the reducer housing 2 and covers the abutting part of the first connecting surface 12 and the second connecting surface 22.

[0074] On the basis of this structure, after the motor housing 1 and the reducer housing 2 are riveted, the protective sleeve 3 can be sleeved on the outside of the motor housing 1, and the protective sleeve 3 covers the connecting part of the first connecting surface 12 and the second connecting surface 22.

[0075] Specifically, the protective sleeve 3 can be made of rubber material, TPU material, etc., and the end of the protective sleeve 3 is sealingly connected to the outside of the reducer housing 2, and the protective sleeve 3 is wrapped on the outside of the motor housing 1. Wherein, the protective sleeve 3 is provided with a wire channel, and the connecting line of the motor can be stretched out to the outside through the wire channel. The wire channel can be tightened by using a tie or a hoop, so as to avoid the entry of external rainwater into the motor from the wire channel.

[0076] Therefore, by arranging the protective sleeve 3 outside the reduction motor, the protective sleeve 3 can prevent rain and dust from entering the motor housing 1 when the reduction motor is used in outdoor environment, avoiding the corrosion and abrasion of the impurities to the internal structure of the motor and the reducer, thereby prolonging the service life of the reduction motor.

[0077] Further, referring to Figure 2 , the motor housing 1 further comprises a shell body 17 and an end cover 18, wherein the end cover 18 is arranged at one end of the shell body 17 away from the reducer housing 2, and the end cover 18 is clamped with the shell body 17.

[0078] On the basis of this structure, when assembling, the internal components of the motor can be first installed in the shell body 17, and then the end cover 18 is aligned with the connecting port at the end of the shell body 17, and the end cover 18 is inserted and assembled in the connecting port at the end of the shell body 17 by applying pressure, realizing the stable connection between the two.

[0079] Therefore, through the clamping of the end cover 18 and the shell body 17, a stable support structure can be provided for the rotor, stator and other components inside the motor. At the same time, the connection of screws and other fasteners can be avoided, avoiding the problem of disconnection of the end cover 18 and the shell body 17 due to missed screws, ensuring the normal use of the motor.

[0080] Further, the shell body 17 is provided with a clamping groove 172 and a limiting groove 171, and the end cover 18 is provided with a clamping buckle 182 and a limiting block 181, wherein the limiting block 181 is matched with the limiting groove 171 to limit the end cover 18 in the circumferential direction; and the clamping buckle 182 is used to clamp with the clamping groove 172 when the limiting block 181 and the limiting groove 171 are connected in place.

[0081] On the basis of this structure, the end cover 18 comprises a bottom wall 183 and a side wall 184 surrounding the outer periphery of the bottom wall 183, the limiting block 181 is arranged at the bottom end of the side wall 184, and the clamping buckle 182 is arranged at the upper end of the side wall 184. When assembling, the side wall 184 of the end cover 18 is first butt-jointed with the connecting port on the shell body 17, and the clamping buckle 182 on the end cover 18 is preliminarily aligned with the clamping groove 172 on the shell body 17, and at the same time the limiting block 181 is moved to the opening position of the limiting groove 171.

[0082] Then, pressure is applied to press the side wall 184 of the end cover 18 into the connecting port, and in this process, the limiting block 181 is axially clamped into the limiting groove 171, and at the same time the clamping buckle 182 approaches the clamping groove 172 along the inner wall of the shell body 17. When the limiting block 181 and the limiting groove 171 are inserted in place, the clamping buckle 182 is connected with the clamping groove 172 under the action of the elastic force.

[0083] Thus, by the cooperation of the limiting block 181 and the limiting groove 171, the circumferential direction of the end cover 18 can be limited, and stable support can be provided for the rotor, the stator and other components in the shell body 17.

[0084] Further, the speed reducer motor further comprises a motor assembly 19 and a speed reduction gear assembly 26.

[0085] On the basis of the structure, the motor assembly 19 comprises a stator winding, a rotor and the like, and the speed reduction gear assembly 26 comprises a plurality of gear sets 262.

[0086] Thus, by the speed reduction characteristics of the speed reducer, the high speed of the motor can be reduced to the low speed required by the equipment, so as to meet the requirements of different working scenes on the speed.

[0087] In addition, the end of the speed reducer shell 2 is further provided with a connecting flange 20, which is used for connecting with the shell of the external equipment, and provides movement support for the output shaft 261.

[0088] It is worth noting that, since the motor shell 1 and the speed reducer shell 2 are connected by the riveting process, the riveting parts of the motor shell 1 and the speed reducer shell 2 can effectively resist the external force such as vibration and impact caused by high-speed operation of the motor and torque output of the speed reducer during the operation of the motor, so as to ensure the stable operation of the speed reducer motor.

[0089] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A geared motor, characterized in that: include, A motor housing, wherein the motor housing is provided with a first connecting portion and a first connecting surface; A reducer housing is provided with a second connecting part and a second connecting surface. The second connecting part is riveted to the first connecting part to connect the reducer housing to the motor housing. The first connecting surface is used to fit against the second connecting surface after the first connecting part and the second connecting part are riveted in place.

2. The geared motor according to claim 1, characterized in that: The first connecting surface is provided with a boss, and the first connecting part protrudes from the outer peripheral surface of the boss; the second connecting surface is provided with a groove, and the second connecting part is recessed in the inner peripheral surface of the groove; the boss is used to insert into the groove when the first connecting part and the second connecting part are riveted together.

3. The geared motor according to claim 2, characterized in that: The first connecting portion includes an arcuate protrusion with a first guiding surface; the second connecting portion includes an annular groove with a shoulder on the side near the second connecting surface, the shoulder having a second guiding surface, the second guiding surface cooperating with the first guiding surface to guide the arcuate protrusion along the second guiding surface past the shoulder and / or guide the shoulder along the first guiding surface past the arcuate protrusion when the arcuate protrusion is riveted to the annular groove.

4. The geared motor according to claim 2 or 3, characterized in that: The motor housing is provided with a first limiting part, and the reducer housing is provided with a second limiting part. The second limiting part is used to connect with the first limiting part so that the reducer housing and the motor housing are mutually limited in the circumferential direction.

5. The geared motor according to claim 4, characterized in that: The protrusion is provided with a mounting platform, and the first limiting part includes a plurality of first limiting teeth. The plurality of first limiting teeth are arranged circumferentially on the outer periphery of the mounting platform, and a first limiting groove is formed between two adjacent first limiting teeth. The second limiting part includes a plurality of second limiting teeth, which are circumferentially spaced on the inner circumference of the slot, and a second limiting groove is formed between two adjacent second limiting teeth; the second limiting teeth are used to be inserted into the first limiting groove, and the first limiting teeth are used to be inserted into the second limiting groove, so that the first limiting teeth and the second limiting teeth mesh with each other in the circumferential direction.

6. The geared motor according to claim 5, characterized in that: The sidewall of the first limiting tooth is provided with a first guiding slope, which is used to guide the first limiting tooth to be inserted into the second limiting groove; the sidewall of the second limiting tooth is provided with a second guiding slope, which is used to guide the second limiting tooth to be inserted into the first limiting groove.

7. The geared motor according to claim 2, characterized in that: The geared motor includes a protective sleeve, which is fitted onto the outside of the motor housing, with the end of the protective sleeve extending toward the gearbox housing and covering the contact area between the first connecting surface and the second connecting surface.

8. The geared motor according to claim 1, characterized in that: The motor housing includes a housing body and an end cap, the end cap being disposed at the end of the housing body away from the reducer housing; the end cap is snapped into the housing body.

9. The geared motor according to claim 8, characterized in that: The shell body is provided with a slot and a limiting groove, and the end cover is provided with a buckle and a limiting block. The limiting block cooperates with the limiting groove to limit the end cover circumferentially. The buckle is used to engage with the slot when the limiting block is connected to the limiting groove.

10. The geared motor according to claim 1, characterized in that: The geared motor further includes a motor assembly and a reduction gear assembly. The motor assembly is installed inside the motor housing, and the reduction gear assembly is installed inside the reducer housing. The motor assembly has a motor shaft, and the reduction gear assembly has an input end. The motor shaft is connected to the input end.

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