CN218633550U - Oil leakage prevention mechanical sealing structure of motor - Google Patents

Oil leakage prevention mechanical sealing structure of motor Download PDF

Info

Publication number
CN218633550U
CN218633550U CN202222254358.XU CN202222254358U CN218633550U CN 218633550 U CN218633550 U CN 218633550U CN 202222254358 U CN202222254358 U CN 202222254358U CN 218633550 U CN218633550 U CN 218633550U
Authority
CN
China
Prior art keywords
motor
bearing unit
transmission flange
motor body
labyrinth ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222254358.XU
Other languages
Chinese (zh)
Inventor
章政华
蔡尧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MingYang Smart Energy Group Co Ltd
Original Assignee
MingYang Smart Energy Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MingYang Smart Energy Group Co Ltd filed Critical MingYang Smart Energy Group Co Ltd
Priority to CN202222254358.XU priority Critical patent/CN218633550U/en
Application granted granted Critical
Publication of CN218633550U publication Critical patent/CN218633550U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Motor Or Generator Frames (AREA)

Abstract

The utility model discloses a motor oil leakage prevention mechanical sealing structure, which comprises a motor body; the motor comprises a motor body and is characterized in that a circle of groove matching structure is arranged on the matching surface of a bearing unit outer labyrinth ring of the motor body and a transmission flange along the circumferential direction, a plurality of through holes penetrating through two end faces of the transmission flange are uniformly distributed on the inner side of the groove matching structure on the transmission flange along the circumferential direction, and the matching surface gaps of the transmission flange and the bearing unit outer labyrinth ring are communicated with the outside of the motor body through the through holes. The utility model discloses can effectively avoid causing motor inner bearing unit oil leak, oil impregnate because of cooling blower or fan negative pressure influence, and then lead to the unit trouble problem to appear.

Description

Motor oil leakage prevention mechanical sealing structure
Technical Field
The utility model belongs to the technical field of the technique of bearing unit oil lubrication motor and specifically relates to indicate a motor leak protection oil mechanical seal structure.
Background
At present, an oil lubrication motor of a bearing unit adopts active oil injection to lubricate the bearing unit, a cooling fan or a fan is used to circularly ventilate and radiate a cooling medium on an armature part of the motor, the cooling medium is sucked into the motor through the rear end of the motor, and hot air is discharged out of the motor by the cooling fan or the fan. Cooling blower or fan will cause the inside negative pressure zone that forms of motor when convulsions, and bearing unit cavity and outside intercommunication and inside high temperature oil mist form atmospheric pressure simultaneously, and the inside cavity atmospheric pressure of motor is less than outside atmospheric pressure and the inside atmospheric pressure of bearing unit this moment, leads to the inside lubricating oil of bearing unit to have the risk of being inhaled the motor cavity inside, causes oil leak, oil seepage trouble, and then leads to the unit trouble.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a motor leak protection oil mechanical seal structure, can effectively avoid causing motor inside bearing unit oil leak, oil impregnate because of cooling blower or fan negative pressure influence, and then leads to the unit trouble problem to appear.
In order to achieve the above object, the present invention provides a technical solution: an oil leakage prevention mechanical sealing structure of a motor comprises a motor body; the motor comprises a motor body and is characterized in that a circle of groove matching structure is arranged on the matching surface of a bearing unit outer labyrinth ring of the motor body and a transmission flange along the circumferential direction, a plurality of through holes penetrating through two end faces of the transmission flange are uniformly distributed on the inner side of the transmission flange and positioned on the groove matching structure along the circumferential direction, and the matching surface gaps of the transmission flange and the bearing unit outer labyrinth ring are communicated with the outside of the motor body through the through holes.
Furthermore, a plurality of first grooves distributed at unequal intervals are machined on the inner circumferential surface of the bearing unit outer labyrinth ring matched with the spacing ring of the motor body along the axial direction.
Further, the groove matching structure comprises a boss arranged on the outer labyrinth ring of the bearing unit and a second groove arranged on the transmission flange.
Compared with the prior art, the utility model, have following advantage and beneficial effect:
the utility model discloses a seal structure has advantages such as simple structure, processing convenience, leakproofness are good, can effectively avoid causing the oil leak of motor bearing unit because of the negative pressure reason, reduces the unit fault rate, guarantees the long-term steady operation of unit.
Drawings
Fig. 1 is a schematic view of the overall structure of the sealing structure of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of fig. 2 at B.
Fig. 4 is a schematic structural diagram of the driving flange of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments, but the usage of the present invention is not limited thereto.
As shown in fig. 1 to 4, the oil leakage preventing mechanical sealing structure of the motor according to the present embodiment includes a motor body 1, and a transmission flange 101 and a spacer ring 102 of the motor body 1 are both rotating components and rotate together with a rotating shaft. When cooling fan or fan is used for carrying out air draft heat dissipation on the inside of the motor, the inside and the outside of the motor are separated through the shell 103 of the motor body 1, hot air is exhausted out of the motor through the air draft opening 107 in the shell 103, and at the moment, the air pressure in the motor is lower than the outside air pressure, so that a negative pressure area is formed in the motor. According to the embodiment, a circle of groove matching structure 105 is added on the matching surface of the outer labyrinth ring 104 of the bearing unit of the motor body 1 and the transmission flange 101 along the circumferential direction to form air pressure labyrinth seal, meanwhile, a plurality of through holes 106 are uniformly processed on the transmission flange 101 and near the inner side of the groove matching structure 105 along the circumferential direction, each through hole 106 penetrates through two end faces of the transmission flange 101, the matching surface gap of the outer labyrinth ring 104 of the transmission flange 101 and the bearing unit is communicated with the outside of the motor body 1 through the through holes 106, if the sealing structure at the groove matching structure 105 is insufficient to achieve the sealing effect, as the through holes 106 uniformly distributed along the circumference are communicated with the outside of the motor, an air plug is formed through the rotation of the through holes 106, and therefore, a secondary negative pressure prevention function is achieved for a formed negative pressure area.
In order to further form air pressure isolation between the interior of the bearing unit and the interior cavity of the motor, a plurality of first grooves 107 distributed at unequal intervals can be axially processed on the inner circumferential surface of the outer labyrinth ring 104 of the bearing unit, which is matched with the spacing ring 102, so as to form low pressure isolation.
Specifically, the groove fitting structure 105 includes a boss provided on the bearing unit outer labyrinth ring 104 and a second groove provided on the transmission flange 101.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. An oil leakage prevention mechanical sealing structure of a motor comprises a motor body; the method is characterized in that: the motor comprises a motor body and is characterized in that a circle of groove matching structure is arranged on the matching surface of a bearing unit outer labyrinth ring of the motor body and a transmission flange along the circumferential direction, a plurality of through holes penetrating through two end faces of the transmission flange are uniformly distributed on the inner side of the groove matching structure on the transmission flange along the circumferential direction, and the matching surface gaps of the transmission flange and the bearing unit outer labyrinth ring are communicated with the outside of the motor body through the through holes.
2. The mechanical seal structure of claim 1, characterized in that: a plurality of first grooves distributed at unequal intervals are machined in the axial direction on the inner circumferential surface of the bearing unit outer labyrinth ring matched with the spacing ring of the motor body.
3. The mechanical seal structure of claim 1, characterized in that: the groove matching structure comprises a boss arranged on the labyrinth ring outside the bearing unit and a second groove arranged on the transmission flange.
CN202222254358.XU 2022-08-26 2022-08-26 Oil leakage prevention mechanical sealing structure of motor Active CN218633550U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222254358.XU CN218633550U (en) 2022-08-26 2022-08-26 Oil leakage prevention mechanical sealing structure of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222254358.XU CN218633550U (en) 2022-08-26 2022-08-26 Oil leakage prevention mechanical sealing structure of motor

Publications (1)

Publication Number Publication Date
CN218633550U true CN218633550U (en) 2023-03-14

Family

ID=85463850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222254358.XU Active CN218633550U (en) 2022-08-26 2022-08-26 Oil leakage prevention mechanical sealing structure of motor

Country Status (1)

Country Link
CN (1) CN218633550U (en)

Similar Documents

Publication Publication Date Title
CN106059195A (en) Rotor connection structure with fan blades capable of increasing heat emission efficiency of inner chamber of motor
CN218633550U (en) Oil leakage prevention mechanical sealing structure of motor
CN219287315U (en) Heat radiation system of high-speed motor
CN104018933B (en) For sealing the midfeather of the back cavity of radial compressor
CN103115072B (en) A kind of sealing configuration of oil-lubricated bearing
CN211175031U (en) Bearing cooling system
CN219242233U (en) Sealing structure between motor and impeller of centrifugal air compressor
CN206860479U (en) A kind of high-speed centrifugal vapour compression machine
CN102011746A (en) Automobile water pump bearing sealing device
CN116428368A (en) Sealing structure, main shaft with sealing structure and main shaft processing method
CN216872972U (en) Magnetic suspension vapor compressor
CN214118713U (en) Supporting structure of multi-thread slicer main shaft home roll
CN205036843U (en) Gear box input shaft's seal structure
CN209930084U (en) Ventilation structure of drive motor and transmission
CN110768466B (en) Novel heat dissipation electric spindle
CN216086291U (en) Water-cooled motor
CN108930718B (en) Bearing and motor
CN114069916A (en) Combined oil-cooled motor system
CN220964484U (en) Oil cooling motor, variable speed drive assembly and vehicle with variable speed drive assembly
CN219287267U (en) Sealing system for high-speed motor
CN201836104U (en) Automobile water pump bearing sealing device with water thrower
CN113890233A (en) Water-cooled motor
CN211052533U (en) Main shaft front end goes out water structure
CN210034191U (en) Oil thrower
CN210350924U (en) High-rigidity grinding head motor for glass edge grinding

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant