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CN-224218216-U - Hub gear motor and vehicle using same

CN224218216UCN 224218216 UCN224218216 UCN 224218216UCN-224218216-U

Abstract

The utility model relates to a hub gear motor and a vehicle using the same, wherein the hub gear motor comprises a fixed output shaft and a casing rotatably sleeved on the fixed output shaft, a containing cavity is formed in the casing, a motor structure is arranged in the containing cavity, the motor structure is provided with a fixing seat, a stator and a rotor, the fixing seat is fixedly connected with the fixed output shaft, the stator and the rotor are both arranged on the fixing seat, the stator is used for driving the rotor to rotate so as to drive the casing to rotate through the rotor, a bearing is sleeved between the fixing seat and the casing, and the fixing seat provides support for the casing through the bearing. According to the technical scheme, the shock resistance of the motor structure inside the hub gear motor can be improved.

Inventors

  • Lv Huixing
  • WANG JIAN
  • WANG HUAQING
  • HUANG BOHUA
  • HUANG CHUXIN

Assignees

  • 广东西格传动智能科技有限公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (9)

  1. 1. The hub gear motor is characterized by comprising a fixed output shaft (2) and a casing (1) rotatably sleeved on the fixed output shaft (2), wherein a containing cavity (10) is formed in the casing (1), a motor structure is arranged in the containing cavity (10), the motor structure is provided with a fixed seat (14), a stator (6) and a rotor (7), the fixed seat (14) is fixedly connected with the fixed output shaft (2), the stator (6) and the rotor (7) are both arranged on the fixed seat (14), and the stator (6) is used for driving the rotor (7) to rotate so as to drive the casing (1) to rotate through the rotor (7); The bearing (5) is sleeved between the fixing seat (14) and the machine shell (1), and the fixing seat (14) provides support for the machine shell (1) through the bearing (5).
  2. 2. The hub reduction motor of claim 1, wherein, The fixing seat (14) provides support for the shell (1) through a single bearing (5), and/or the bearing (5) is sleeved at the middle part of the fixing seat (14).
  3. 3. The hub reduction motor of claim 1, wherein, The shell (1) is provided with a first shell (11) and a second shell (12), the first shell (11) is provided with a first opening end, the second shell (12) is provided with a second opening end (121), and the first shell (11) and the second opening end (121) of the second shell (12) are buckled together through the first opening end to form the accommodating cavity (10) between the first shell and the second shell; The bearing (5) is sleeved in the annular flaring groove (111), an outer ring (51) of the bearing is in interference fit with a groove wall (1111) of the annular flaring groove, an inner ring (52) of the bearing is in interference fit with the fixing seat (14), and an annular supporting table (521) for supporting one side, close to the second shell (12), of the inner ring (52) of the bearing is arranged on the fixing seat (14); The second shell (12) supports and fixes the outer ring (51) of the bearing on the bottom surface (1112) of the annular flaring groove through the second opening end (121).
  4. 4. The hub reduction motor of claim 1, wherein, The motor structure further comprises a rotor shaft (9), and the rotor (7) drives the shell (1) to rotate through the rotor shaft (9); The rotor shaft (9) is located on one axial side of the fixed output shaft (2), the accommodating cavity (10) is provided with a first side (101) and a second side (102) which are opposite, the fixed output shaft (2) extends out of the first side (101), and no bearing support exists between one end, away from the fixed output shaft (2), of the rotor shaft (9) and the second side (102).
  5. 5. The hub reduction motor of claim 4, wherein, The rotor (7) is sleeved on the outer side of the stator (6), and the rotor (7) is connected with the rotor shaft (9) through a connecting piece (8) so as to drive the rotor shaft (9) to rotate through the connecting piece (8); Wherein, the one end opposite to the second side (102) of the connecting piece (8) is provided with a connecting hole (81), and one end of the rotor shaft (9) deviating from the fixed output shaft (2) is fixed in the connecting hole (81).
  6. 6. The hub reduction motor of claim 5, wherein, One end of the rotor shaft (9) facing away from the fixed output shaft (2) does not protrude out of the connecting hole (81).
  7. 7. The hub reduction motor according to claim 5 or 6, wherein, The cavity wall of the accommodating cavity (10) at the second side (102) is a plane (103), one end of the connecting piece (8) opposite to the second side (102) is opposite to the plane (103) with a gap between the two, and one end of the rotor shaft (9) facing away from the fixed output shaft (2) is opposite to the plane (103) with a gap between the two.
  8. 8. A vehicle comprising the in-wheel reduction motor according to any one of claims 1 to 7.
  9. 9. The vehicle of claim 8, wherein the vehicle is an electric vehicle, a robotic hub vehicle, or an industrial AGV vehicle.

Description

Hub gear motor and vehicle using same Technical Field The utility model relates to the technical field of hub motors, in particular to a hub gear motor and a vehicle using the same. Background Hub reduction motors are generally products used on vehicle wheels. As shown in fig. 1, the existing hub gear motor comprises a fixed output shaft 2 and a casing 1 rotatably sleeved on the fixed output shaft 2, a containing cavity 10 is formed in the casing 1, a motor structure is arranged in the containing cavity 10, the motor structure is provided with a fixing seat 14, a stator 6 and a rotor shaft 9, the fixing seat 14 is fixedly connected with the fixed output shaft 2, the stator 6 and the rotor shaft 9 are both arranged on the fixing seat 14, the stator 6 is used for driving the rotor shaft 9 to rotate, a transmission tooth 13 is arranged on the inner wall of the casing 1, and the rotor shaft 9 is in transmission connection with the transmission tooth 13 through a gear transmission mechanism 4 so as to drive the casing 1 to rotate. Wherein, fixed output shaft 2 stretches out the one side of holding chamber 10, and rotor shaft 9 is located fixed output shaft 2 axial one side, and the one end that deviates from fixed output shaft 2 of rotor shaft 9 is installed in the bearing frame 16 on casing 1, makes support through first bearing 17 between the one end that deviates from fixed output shaft 2 of rotor shaft 9 and casing 1. The tail end of the rotor shaft 9, i.e. the end facing away from the fixed output shaft 2, is connected with the casing 1 through the first bearing 17, so that when the casing 1 is impacted by external force, such as jolt or fall, the impact force is easily transmitted to the rotor shaft 9 through the first bearing 17, and the inside of the motor structure is damaged. Disclosure of utility model In view of the above, the utility model provides a hub gear motor and a vehicle using the same, and the technical problem to be solved is how to improve the shock resistance of the motor structure inside the hub gear motor. In order to achieve the above purpose, the present utility model mainly provides the following technical solutions: The embodiment of the utility model provides a hub gear motor, which comprises a fixed output shaft and a casing rotatably sleeved on the fixed output shaft, wherein an accommodating cavity is formed in the casing, a motor structure is arranged in the accommodating cavity, the motor structure is provided with a fixed seat, a stator and a rotor, the fixed seat is fixedly connected with the fixed output shaft, the stator and the rotor are both arranged on the fixed seat, and the stator is used for driving the rotor to rotate so as to drive the casing to rotate through the rotor; the bearing is sleeved between the fixing seat and the shell, and the fixing seat provides support for the shell through the bearing. In some embodiments, the fixing base provides support for the casing through a single bearing, and/or the bearing is sleeved in the middle of the fixing base. In some embodiments, the housing has a first shell having a first open end and a second shell having a second open end, the first shell snap-fit together with the second open end of the second shell through the first open end to form the receiving cavity therebetween; The bearing is sleeved in the annular flaring groove, the outer ring of the bearing is in interference fit with the groove wall of the annular flaring groove, and the inner ring of the bearing is in interference fit with the fixing seat; The second shell supports and fixes the outer ring of the bearing on the bottom surface of the annular flaring groove through the second opening end. In some embodiments, the motor structure further comprises a rotor shaft, the rotor drives the shell to rotate through the rotor shaft, the rotor shaft is located on one axial side of the fixed output shaft, the accommodating cavity is provided with a first side and a second side which are opposite, the fixed output shaft extends out of the first side, and no bearing support exists between one end, away from the fixed output shaft, of the rotor shaft and the second side. In some embodiments, the rotor is sleeved outside the stator, and the rotor is connected with the rotor shaft through a connecting piece so as to drive the rotor shaft to rotate through the connecting piece; The rotor shaft is provided with a fixed output shaft, and the fixed output shaft is fixed in the fixed output shaft. In some embodiments, an end of the rotor shaft facing away from the fixed output shaft does not protrude out of the connection hole. In some embodiments, the cavity wall of the accommodating cavity at the second side is a plane, one end of the connecting piece opposite to the second side is opposite to the plane with a gap therebetween, and one end of the rotor shaft facing away from the fixed output shaft is also opposite to the plane with a gap therebetween. The utility model p