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CN-224233454-U - Motor assembly structure and rotating electrical machine

CN224233454UCN 224233454 UCN224233454 UCN 224233454UCN-224233454-U

Abstract

The utility model provides a motor assembly structure and a rotating motor, wherein the motor assembly structure comprises a motor shell and an oil seal seat, an accommodating cavity for accommodating a motor stator is formed in the motor shell, a first shaft hole and a first accommodating groove encircling the periphery of the first shaft hole are formed in the bottom wall of the motor shell, a second shaft hole and a second accommodating groove encircling the periphery of the second shaft hole are formed in the oil seal seat, the first shaft hole corresponds to the second shaft hole, an oil cavity is formed by the first accommodating groove and the second accommodating groove together, a plurality of first fixing structures are formed in the bottom wall of the motor shell, a plurality of second fixing structures are formed in the oil seal seat, and the positions of the first fixing structures and the second fixing structures are in one-to-one correspondence and are connected with each other. In the utility model, the plurality of first fixing structures are fixedly connected with the plurality of second fixing structures, so that the alignment precision between the motor shell and the oil seal seat can be ensured, the concentricity between the first shaft hole and the second shaft hole of the motor is ensured, and the axis stability of the rotating shaft during rotation is further improved.

Inventors

  • CHEN YUNGANG
  • LIN RONG
  • JI WENWEI
  • YAN CHENGGANG

Assignees

  • 利欧集团浙江泵业有限公司

Dates

Publication Date
20260512
Application Date
20250408

Claims (10)

  1. 1. The utility model provides a motor package assembly, includes motor housing (100) and oil blanket seat (200), the inside of motor housing (100) has the chamber of holding that is used for holding motor stator, be formed with first shaft hole (110) on the diapire of motor housing (100) and encircle in first shaft hole (110) first holding tank (120) all around, be formed with second shaft hole (210) on oil blanket seat (200) and encircle in second holding tank (220) all around second shaft hole (210), first shaft hole (110) with second shaft hole (210) position corresponds, first holding tank (120) with second holding tank (220) form the oil pocket jointly, a serial communication port, have a plurality of first fixed knot constructs (130) on the diapire of motor housing (100), have a plurality of second fixed knot constructs (230) on oil blanket seat (200), a plurality of first fixed knot constructs (130) and a plurality of second fixed knot constructs (230) position one-to-one and interconnect.
  2. 2. The motor assembly structure according to claim 1, wherein the motor assembly structure includes a plurality of positioning pins (300), the plurality of first fixing structures (130) includes a plurality of first pin holes, the plurality of second fixing structures (230) includes a plurality of second pin holes, positions of the plurality of second pin holes correspond to positions of the plurality of first pin holes one by one, and the plurality of positioning pins (300) are inserted into the plurality of first pin holes and the plurality of second pin holes, respectively.
  3. 3. The motor assembly structure according to claim 2, wherein the oil seal seat (200) is welded to the bottom wall of the motor housing (100).
  4. 4. The motor assembly structure according to claim 1, wherein the motor assembly structure includes a plurality of fastening connectors (400), the plurality of first fixing structures (130) includes a plurality of first mounting holes, the plurality of second fixing structures (230) includes a plurality of second mounting holes, positions of the plurality of second mounting holes are in one-to-one correspondence with positions of the plurality of first mounting holes, and the plurality of fastening connectors (400) are respectively inserted into the plurality of first mounting holes and the plurality of second mounting holes to fixedly connect the oil seal holder (200) with the bottom wall of the motor housing (100).
  5. 5. The motor assembly structure according to any one of claims 1 to 4, wherein the first accommodation groove (120) is formed on an outer side surface of a bottom wall of the motor housing (100), the oil seal mount (200) is fixed to an outer side of the bottom wall of the motor housing (100), and the second accommodation groove (220) is formed on a side of the oil seal mount (200) facing the motor housing (100), a volume of the first accommodation groove (120) being larger than a volume of the second accommodation groove (220); or the first accommodating groove (120) is formed on the inner side surface of the bottom wall of the motor housing (100), the oil seal seat (200) is fixed on the inner side of the bottom wall of the motor housing (100), the second accommodating groove (220) is formed on one side of the oil seal seat (200) facing the bottom wall of the motor housing (100), and the volume of the first accommodating groove (120) is smaller than that of the second accommodating groove (220).
  6. 6. The motor assembly structure according to any one of claims 1 to 4, wherein the first receiving groove (120) is formed on an outer side surface of a bottom wall of the motor housing (100), the oil seal holder (200) is fixed to an outer side of the bottom wall of the motor housing (100), a bearing groove (a) for receiving a bottom bearing (40) is further formed on an inner side surface of the bottom wall of the motor housing (100), the first shaft hole (110) penetrates a groove bottom of the bearing groove (a), and the first receiving groove (120) surrounds an outer side of the bearing groove (a); Or the oil seal seat (200) is fixed on the inner side of the bottom wall of the motor shell (100), the second accommodating groove (220) is formed on one side, facing the bottom wall of the motor shell (100), of the oil seal seat (200), the bearing groove (a) for accommodating the bottom bearing (40) is formed on one side, facing the inside of the motor shell (100), of the oil seal seat (200), the second shaft hole (210) penetrates through the groove bottom of the bearing groove (a), and the second accommodating groove (220) surrounds the outer side of the bearing groove (a).
  7. 7. The motor assembly structure according to claim 6, wherein the bearing groove (a) includes a bearing positioning groove (a 1) and an inner oil seal groove (a 2), the inner oil seal groove (a 2) is formed at a groove bottom of the bearing positioning groove (a 1), the bearing positioning groove (a 1) is used for accommodating a bottom bearing (40), and the inner oil seal groove (a 2) is used for accommodating an inner oil seal structure (50).
  8. 8. The motor assembly structure according to claim 7, wherein the oil seal seat (200) is fixed to the outer side of the bottom wall of the motor housing (100), the second receiving groove (220) is formed at a side of the oil seal seat (200) facing the bottom wall of the motor housing (100), the outer oil seal groove (b) for receiving the outer oil seal structure (60) is formed at a side of the oil seal seat (200) facing the outer side of the motor housing (100), the second shaft hole (210) penetrates through a groove bottom of the outer oil seal groove (b), and the second receiving groove (220) surrounds the outer side of the outer oil seal groove (b); Or the oil seal seat (200) is fixed on the inner side of the bottom wall of the motor shell (100), the first accommodating groove (120) is formed on the inner side surface of the bottom wall of the motor shell (100), the outer oil seal groove (b) for accommodating the outer oil seal structure (60) is further formed on the outer side surface of the bottom wall of the motor shell (100), the first shaft hole (110) penetrates through the groove bottom of the outer oil seal groove (b), and the first accommodating groove (120) surrounds the outer side of the outer oil seal groove (b).
  9. 9. The motor assembly structure according to claim 7, further comprising an annular gasket (500), the annular gasket (500) surrounding the outer sides of the first and second accommodation grooves (120, 220), and the annular gasket (500) sealing a gap between the oil seal seat (200) and the bottom wall of the motor housing (100).
  10. 10. A rotating electrical machine, characterized by comprising a stator assembly (10), a rotor assembly (20), a rotating shaft (30) and the motor assembly structure according to any one of claims 1 to 9, wherein the stator assembly (10), the rotor assembly (20) and the rotating shaft (30) are all arranged in a motor housing (100) of the motor assembly structure, the rotating shaft (30) passes through a first shaft hole (110) and a second shaft hole (210) of the motor assembly structure, one of the stator assembly (10) and the rotor assembly (20) is fixedly connected with the motor housing (100), and the other is fixedly arranged on the rotating shaft (30).

Description

Motor assembly structure and rotating electrical machine Technical Field The utility model relates to the technical field of motors, in particular to a motor assembly structure and a rotary motor comprising the motor assembly structure. Background The motor generally comprises a stator assembly, a rotor assembly, a rotating shaft and a shell, wherein the rotor assembly is sleeved on the rotating shaft, the stator assembly is arranged around the rotor assembly and fixedly connected with the inner wall of the stator assembly, and one end of the rotating shaft penetrates out of the shell to be connected with a load outside the motor. The shell is generally split into an upper shell and a lower shell which are connected in a butt joint mode, so that the stator assembly and the rotor assembly are contained in a cavity formed by the upper shell and the lower shell, and the upper end and the lower end of the rotating shaft are movably connected with the upper shell and the lower shell through bearings respectively. In order to ensure the service life of the components (e.g., oil seals) connected between the rotating shaft and the lower case, the bottom of the lower case is generally provided with an oil injection chamber. Specifically, the inferior valve has the annular channel of undercut around corresponding to the position of rotation axis departure, and the cover is equipped with the step in the inferior valve, the surface of step and the laminating of the internal surface of inferior valve, the one end of rotation axis passes step and inferior valve in proper order, the step passes through bearing and rotation axis swing joint, the top of annular channel is sealed to the step, in order to form the oil filling chamber, all be provided with the oil blanket between rotation axis and step and the inferior valve, realize the dynamic seal between oil filling chamber upper and lower both sides hole and the rotation axis, still be provided with the sealing washer of encircleing in the annular channel outside between step and the inferior valve, realize the outside static seal of oil filling chamber through the sealing washer. However, the design has the problems of poor neutrality, difficult installation of a sealing ring, short service life and the like of the shaft hole on the lower bearing seat and the shaft hole of the lower shell, so that the whole concentricity and the sealing performance of the motor are poor. Therefore, how to provide a motor assembly structure with high concentricity and good tightness is a technical problem to be solved in the field. Disclosure of utility model The present utility model aims to solve one of the technical problems in the related art to a certain extent. Therefore, the utility model provides a motor assembly structure and a rotary motor comprising the motor assembly structure, and the motor assembly structure has high concentricity and good sealing performance. In order to achieve the above object, as one aspect of the present utility model, there is provided a motor assembly structure, including a motor housing and an oil seal seat, wherein an accommodating cavity for accommodating a motor stator is formed in the motor housing, a first shaft hole and a first accommodating groove surrounding the first shaft hole are formed in a bottom wall of the motor housing, a second shaft hole and a second accommodating groove surrounding the second shaft hole are formed in the oil seal seat, the first shaft hole corresponds to the second shaft hole, the first accommodating groove and the second accommodating groove together form an oil cavity, a plurality of first fixing structures are formed in a bottom wall of the motor housing, a plurality of second fixing structures are formed in the oil seal seat, and the plurality of first fixing structures and the plurality of second fixing structures are in one-to-one correspondence and are connected with each other. Optionally, the positions of the first fixing structures and the second fixing structures are all distributed around the outer sides of the first accommodating groove and the second accommodating groove. Optionally, the positions of the plurality of first fixing structures and the plurality of second fixing structures are equally spaced along the circumferential direction. Optionally, the motor assembly structure includes a plurality of locating pins, a plurality of the first fixed knot constructs including a plurality of first pinholes, a plurality of the second fixed knot constructs including a plurality of second pinholes, a plurality of the second pinholes the position with a plurality of the position one-to-one of first pinhole, a plurality of the locating pin inserts a plurality of respectively first pinhole and a plurality of the second pinhole. Optionally, the motor assembly structure includes 2 locating pins, a plurality of the first fixed knot constructs including 2 first pinhole, a plurality of the second fixed knot constr