Driving wheel motor with gearbox

Abstract

The utility model relates to the technical field of accessories of sweeping robots, and discloses a driving wheel motor with a gear box, which comprises a motor rotor, a motor stator core, a motor PCBA (printed circuit board assembly), a motor fixing support, a motor secondary tooth and a gear shaft, the motor stator core is assembled in an inner cavity of the motor rotor, the motor PCBA is connected with the motor rotor, and the gear shaft is connected with the motor stator core. The motor PCBA is connected with the motor fixing support, an inner cavity of the motor fixing support is connected with the motor teeth, the two sides of the motor teeth are connected with the secondary teeth in a meshed mode, the motor fixing support is connected with the gearbox cover, and helical teeth are arranged outside the secondary teeth and the motor teeth. According to the driving wheel motor with the gear box, the planetary reduction gear box and the driving wheel motor of the sweeping robot are integrated, the occupied volume of a traditional external gear box mode is reduced, the additionally-arranged oil inlet is matched with the shapes of the motor teeth and the secondary teeth, and grease can be evenly applied to the interior of the device when the interior of the device is lack of lubrication.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sweeper robot accessories, concretely is drive wheel motor with gear box. BACKGROUND

[0002] Sweeper robot, also known as automatic sweeper, intelligent dust collector, robot dust collector etc., is a kind of intelligent household appliance, can rely on certain artificial intelligence, automatically complete the floor cleaning work in the room. Drive wheel motor is one of the core components of sweeper robot, is responsible for providing power and controlling the moving direction of robot.

[0003] In the traditional sweeper robot design, drive wheel motor and planetary reduction gear box are often designed separately, this kind of external gear box mode will occupy larger space, is not conducive to the miniaturization and compact design of sweeper robot, the drive wheel motor of traditional sweeper robot still has limitations on speed regulation, cannot flexibly adjust the speed of motor according to actual needs, will affect the operation efficiency and cleaning effect of sweeper robot. And sweeper robot transmission device in the long time running process, possibly because of internal lubrication deficiency and lead to operation not smooth, even cause failure. Traditional lubrication mode has uneven lubrication, difficult to maintain etc. problem, therefore, drive wheel motor with gear box is proposed. SUMMARY

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides drive wheel motor with gear box to solve the above technical problems in the traditional sweeper robot design, drive wheel motor and planetary reduction gear box are often designed separately, this kind of external gear box mode will occupy larger space, is not conducive to the miniaturization and compact design of sweeper robot, the drive wheel motor of traditional sweeper robot still has limitations on speed regulation, cannot flexibly adjust the speed of motor according to actual needs, will affect the operation efficiency and cleaning effect of sweeper robot. And sweeper robot transmission device in the long time running process, possibly because of internal lubrication deficiency and lead to operation not smooth, even cause failure.

[0006] (II) technical scheme

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: driving wheel motor with gear box, include: motor rotor, motor stator core, motor PCBA, motor fixed bolster, motor gear two level tooth and gear shaft, and motor stator core is assembled in the inner chamber of motor rotor, motor PCBA is connected with motor rotor, motor PCBA is connected with motor fixed bolster, and the inner chamber of motor fixed bolster is connected with motor gear, both sides of motor gear are engaged connection with two level tooth, motor fixed bolster is connected with gear box cover, the outside of two level tooth and motor gear is all set up with bevel gear, and motor gear is engaged with two level tooth through bevel gear, the outside of gear box cover is connected with oil inlet, and oil inlet is located below between two level tooth and motor gear.

[0008] Preferably, the inside of the motor stator core is assembled with a limiting shaft, and the limiting shaft is connected with the motor rotor through a bearing, the outside of the limiting shaft is sleeved with a spherical bearing, and the spherical bearing is connected with the motor fixed bolster, the limiting shaft is connected with the motor gear, the limiting shaft can support the motor stator core, and the stability of the whole device is improved.

[0009] Preferably, the two level tooth has two groups, and the inside of the two level tooth is inserted with a gear shaft, the gear shaft and the gear box cover are connected through a bearing, and the two level tooth can control the power generated by the device.

[0010] Preferably, the outside of the gear box cover is uniformly provided with a bolt hole, and the inside of the bolt hole is assembled with a bolt, the bolt is connected with the motor fixed bolster, the bolt can assemble the gear box cover and the motor fixed bolster, and then the gear box cover and the motor fixed bolster can be conveniently disassembled and maintained.

[0011] Preferably, the inside of the motor fixed bolster is provided with an assembly groove on both sides, and the two level tooth is assembled in the inside of the assembly groove, and the assembly groove can accommodate and support the two level tooth.

[0012] Preferably, the outside of the motor rotor is rounded, and the inside of the motor rotor is slidingly connected with the outside of the motor stator core, and the rounded motor rotor improves the anti-collision performance during use.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a driving wheel motor with gear box, which has the following

[0015] Beneficial effects:

[0016] The driving wheel motor with a gear box integrates a planetary reduction gear box with a driving wheel motor of a sweeping robot, reduces the volume occupation of a traditional external gear box mode, adjusts the rotating speed of a motor rotor, a motor stator core and a motor PCBA through the added motor teeth and secondary teeth, is suitable for being used as a transmission device of the sweeping robot, and the added oil inlet cooperates with the shapes of the motor teeth and the secondary teeth, facilitates uniform coating of oil in the inside of the device when the inside of the device lacks lubrication, avoids reduction of running fluency due to lack of oil in the inside of the device, and improves the overall running speed of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the utility model;

[0018] Figure 2 It is a bottom view of the utility model;

[0019] Figure 3 It is an explosion view of the utility model.

[0020] In the drawing: 1, motor rotor; 21, limit shaft; 2, motor stator core; 3, motor PCBA; 4, spherical bearing; 5, motor fixed support; 51, assembly groove; 6, motor teeth; 7, secondary teeth; 8, gear shaft; 9, gear box cover; 91, oil inlet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The utility model provides technical schemes, please refer to Figure 1 、 Figure 2 and Figure 3 , the driving wheel motor with a gear box, including: motor rotor 1, motor stator core 2, motor PCBA 3, motor fixed support 5, motor teeth 6 secondary teeth 7 and gear shaft 8, and motor stator core 2 is assembled in the inner chamber of motor rotor 1, motor PCBA 3 is connected with motor rotor 1, motor PCBA 3 is connected with motor fixed support 5, and the inner chamber of motor fixed support 5 is connected with motor teeth 6, the two sides of motor teeth 6 are engagedly connected with secondary teeth 7, motor fixed support 5 is connected with gear box cover 9, and the outside of secondary teeth 7 and motor teeth 6 is all provided with bevel teeth, and motor teeth 6 and secondary teeth 7 are engaged through bevel teeth, the outside of gear box cover 9 is communicated with oil inlet 91, and oil inlet 91 is located below between secondary teeth 7 and motor teeth 6.

[0023] The motor rotor 1, the motor stator core 2 and the motor PCBA 3 are combined into a motor device common in the prior art, used to drive the subsequent device, the spherical bearing 4 can support the limiting shaft 21, the motor fixing support 5 can assemble the motor teeth 6 and the secondary teeth 7, the secondary teeth 7 can be driven by the motor teeth 6, the gear box cover 9 can close the motor fixing support 5, the oil inlet 91 is a common oil inlet device in the prior art, which is composed of a recommended one-way valve device, so that the oil can only enter through the oil inlet 91 and cannot be discharged through the oil inlet 91.

[0024] The motor stator core 2 is assembled with the limiting shaft 21, and the limiting shaft 21 is connected with the motor rotor 1 through a bearing, the limiting shaft 21 is sleeved with the spherical bearing 4 outside, and the spherical bearing 4 is connected with the motor fixing support 5, the limiting shaft 21 is connected with the motor teeth 6, the limiting shaft 21 can support the motor stator core 2, improve the stability of the whole device, the secondary teeth 7 have two groups, and the gear shaft 8 is inserted into the secondary teeth 7, the gear shaft 8 is connected with the gear box cover 9 through a bearing, and the secondary teeth 7 can control the power generated by the device.

[0025] The gear box cover 9 is uniformly provided with bolt holes outside, and the bolt holes are assembled with bolts inside, and the bolts are connected with the motor fixing support 5, the bolts can assemble the gear box cover 9 and the motor fixing support 5, and then the gear box cover 9 and the motor fixing support 5 can be conveniently disassembled and maintained.

[0026] The motor fixing support 5 is provided with assembly grooves 51 on both sides inside, and the secondary teeth 7 are assembled in the assembly grooves 51, the assembly grooves 51 can accommodate and support the secondary teeth 7, the motor fixing support 5 is provided with assembly grooves 51 on both sides inside, and the secondary teeth 7 are assembled in the assembly grooves 51, the assembly grooves 51 can accommodate and support the secondary teeth 7.

[0027] The motor rotor 1, the motor stator core 2 and the motor PCBA 3 drive the motor teeth 6, control the rotating speed of the motor teeth 6 through the secondary teeth 7, and when there is no lubricating oil between the motor teeth 6 and the secondary teeth 7, the oil is injected through the oil inlet 91, the oil is driven by the oblique teeth outside the secondary teeth 7 and the motor teeth 6, and the oil is evenly coated outside the secondary teeth 7 and the motor teeth 6, so that the inside of the device is finally lubricated with oil;

[0028] The motor rotor 1, the motor stator core 2 and the motor PCBA 3 are adjusted in rotation speed by the added motor teeth 6 and the secondary teeth 7, the whole device is small in size, simple in structure, suitable for being used as a transmission device of a small machine, and when the device is short of lubrication, the added oil inlet 91 cooperates with the unique shape of the motor teeth 6 and the secondary teeth 7 to uniformly coat oil in the inside of the device, avoid the inside of the device from being short of oil and reducing the running fluency, and improve the running speed of the whole device.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gear case-equipped drive wheel motor, comprising: The utility model relates to a motor rotor, motor stator core, motor PCBA, motor fixed support, motor gear tooth secondary tooth and gear shaft, and the motor stator core is assembled in the inner chamber of motor rotor, motor PCBA is connected with motor rotor, motor PCBA is connected with motor fixed support, and the inner chamber of motor fixed support is connected with motor gear tooth, both sides of motor gear tooth are engaged with secondary tooth, motor fixed support is connected with gear box cover, characterized by: the outside of secondary tooth and motor gear tooth is all set up with bevel gear tooth, and motor gear tooth and secondary tooth are engaged through bevel gear tooth, the outside of gear box cover is connected with oil inlet, and oil inlet is located below between secondary tooth and motor gear tooth.

2. The gear case-equipped drive wheel motor according to claim 1, characterized by: The inside of the motor stator core is assembled with a limiting shaft, and the limiting shaft is connected with the motor rotor through a bearing, the outside of the limiting shaft is sleeved with a spherical bearing, and the spherical bearing is connected with the motor fixed support, and the limiting shaft is connected with the motor gear tooth.

3. The gear case in-wheel motor according to claim 1, characterized by: The secondary tooth has two groups, and the inside of the secondary tooth is inserted with a gear shaft, and the gear shaft is connected with the gear box cover through a bearing.

4. The gear case in-wheel motor according to claim 1, characterized by: The outside of the gear box cover is uniformly provided with bolt holes, and the inside of the bolt holes is assembled with bolts, and the bolts are connected with the motor fixed support.

5. The gear case in-wheel motor according to claim 1, characterized by: The inside of the motor fixed support is provided with assembly grooves on both sides, and the secondary tooth is assembled in the assembly grooves.

6. The gear case in-wheel motor according to claim 1, characterized by: The outside of the motor rotor is rounded, and the inside of the motor rotor is slidingly connected with the outside of the motor stator core.

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