5.5-cun hub motor for commercial cleaning robot

Abstract

The 5.5-inch hub motor comprises a motor hub, end covers are symmetrically arranged at the two ends of the motor hub, a rotating shaft is arranged in the middle of an inner cavity of the motor hub in a penetrating mode, a stator and a rotor are sequentially arranged on the outer side of the rotating shaft in a sleeved mode, and a gear set is arranged in the middle of the rotating shaft. The beneficial effects of the utility model are that the stator and the rotor drive the first gear and drive the hub and the end cover which are provided with the fourth gear, thereby effectively optimizing the power density and the installation technology of the motor, reducing the size of the iron core and the magnetic steel, reducing the speed by using two-stage external meshing, and increasing the stability of gear meshing by adding the virtual constraint gear. And compared with the output of an inner gear ring, the size is smaller, so that the selection of the reduction ratio is more flexible, and the cost and the weight are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel hub motor technical field, concretely is a 5.5 inch wheel hub motor for commercial cleaning robot. BACKGROUND

[0002] The wheel hub motor structure of the existing industrial robot generally has the direct drive of the body direct drive motor to solve the problem of large torque requirement, the space ratio of the iron core part is large, the cost of magnetic steel is higher, and the gear box can effectively reduce the cost of iron core and magnetic steel. SUMMARY

[0003] The utility model discloses a 5.5 inch wheel hub motor for commercial cleaning robot to solve the problem in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a 5.5 inch wheel hub motor for commercial cleaning robot, including motor wheel hub, the both ends of motor wheel hub are symmetrically equipped with end cover, the middle part of motor wheel hub inner chamber is equipped with the shaft, the outer side of shaft is sequentially equipped with stator and rotor with sleeve, the middle part of shaft is equipped with gear set.

[0005] Further optimization, the gear set is composed of first gear, second gear, third gear and fourth gear.

[0006] Further optimization, the fourth gear is symmetrically installed in the middle part of the inner wall of the motor wheel hub and the end cover.

[0007] Further optimization, the first gear is connected with the stator and the rotor.

[0008] Further optimization, the rotor is installed on the shaft through the bearing.

[0009] Further optimization, the stator is connected with the end cover through the screw, and the left end cover is connected with the second gear through interference fit.

[0010] Further optimization, the shaft is equipped with planet carrier, and the second gear and the third gear are connected through half shaft interference, and are installed on the planet carrier through the bearing.

[0011] Advantages

[0012] The utility model provides a 5.5 inch wheel hub motor for commercial clearing robot, the first gear of stator drive and drive the wheel hub and end cover with fourth gear are installed, effectively optimize motor power density and installation process, reduce the volume of iron core and magnetic steel, use two stage external meshing deceleration, and increase virtual constraint gear to increase the stability of gear meshing, reduce the stress when single pair of gear meshing, compared with the volume of inner tooth ring output, make the deceleration ratio selection more flexible, reduce the cost and weight. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure section view schematic drawing of the utility model. DETAILED DESCRIPTION

[0014] The following is the specific embodiment of the utility model and combines the drawings, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0015] EMBODIMENT

[0016] As Figure 1 Shown, a kind of 5.5 inch wheel hub motor for commercial clearing robot, including motor wheel hub 1, motor wheel hub 1 both ends are symmetrically provided with end cover 3, motor wheel hub 1 inner chamber middle part is penetrated with shaft 2, shaft 2 outside is sequentially equipped with stator 4 and rotor 5, and shaft 2 middle part is equipped with gear set.

[0017] In the embodiment, gear set is composed of first gear 6, second gear 7, third gear 8 and fourth gear 9.

[0018] Fourth gear 9 is symmetrically installed in the middle part of the inner wall of motor wheel hub 1 and end cover 3, effectively optimizes motor power density and installation process, reduces the volume of iron core and magnetic steel.

[0019] First gear 6 is connected with stator 4 and rotor 5.

[0020] Rotor 5 is installed on shaft 2 by bearing, and is limited by interference in axial direction.

[0021] Stator 4 is connected with end cover 3 by screw, and left end cover 3 is connected with second gear 7 by interference fit, to realize power transmission.

[0022] Shaft 2 is provided with planet carrier, and second gear 7 and third gear 8 are connected by half shaft interference, to realize power output, and the two are installed on planet carrier by bearing.

[0023] The rotor is installed on the rotating shaft through bearings and is axially limited through interference; the iron core is connected with the two side end covers through screws, and the left side end cover is connected with the gear 4 through interference to realize power transmission; the gear 2 and the gear 3 are connected through half shaft interference to realize power transmission and are installed on the planet carrier through bearings; and the planet carrier is installed on the main shaft through interference.

[0024] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the scope of the present application.

Claims

1. A 5.5-inch wheel hub motor for a cleaning robot, characterized in that: Motor hub (1), the motor hub (1) both ends symmetrically provided with end cover (3), the motor hub (1) cavity middle part through the shaft (2) is equipped with, the shaft (2) outside is sequentially provided with stator (4) and rotor (5), the shaft (2) middle part is equipped with gear set, the gear set is composed of first gear (6), second gear (7), third gear (8) and fourth gear (9), the fourth gear (9) symmetry is installed in the middle part of the inner wall of the motor hub (1) and end cover (3), the first gear (6) with the stator (4), rotor (5) is connected.

2. The 5.5-inch wheel hub motor for a cart robot according to claim 1, wherein: The rotor (5) is installed on the shaft (2) through the bearing.

3. The 5.5-inch wheel hub motor for a cart robot according to claim 1, wherein: The stator (4) is connected with the end cover (3) through screw, and the left end cover (3) is connected with the second gear (7) through interference fit.

4. The 5.5-inch wheel hub motor for a cart robot of claim 1, wherein: The shaft (2) is provided with a planet carrier, and the second gear (7) and the third gear (8) are connected through half shaft interference, and are installed on the planet carrier through the bearing.

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