TW201424212A - Motor with oil circulation - Google Patents

Abstract

A motor with oil circulation is disclosed. The motor includes a main body having a bearing at one end; a shaft that passes through the main body to be rotatably received by the bearing; an oil circuit space defined around the bearing; an oil tank having an oil inlet tube and an oil return tube that are communicated with the circuit space, respectively; and a pump serving to circulate cooled oil between the oil circuit space and the oil tank through the oil inlet tube and the oil return tube, thereby cooling the bearing peripherally.

Description

Motor with oil circuit

The invention relates to a motor, in particular a motor having an oil circuit circulation.

According to the general motor bearing, high temperature is generated during high-speed rotation. In order to solve the high temperature problem caused by the rotation, a fan fan rotating with the motor shaft is usually arranged at the end of the motor, and the fan shaft is rotated through the motor shaft. The outside air is introduced into the inside of the motor as a cyclical exchange of space to lower the bearing operating temperature of the bottom motor. However, the effect is not excellent, especially in the process of turning, the component that is often heated is the related component of the rotation, so there is no direct When cooled, the operating temperature cannot be substantially reduced.

Later, in order to solve such problems, there is a way to cool down the bearing parts in the motor by means of cooling oil atomization. However, this method is a small molecular structure after the cooling oil is atomized, and is easy to be sprayed. Diffusion in the factory, resulting in poor air quality, and easy to allow workers to ingest excessive cooling oil and affect health, and if not recycled with oil, it is also a waste of use.

In order to solve the above problems, the present invention discloses a motor having an oil circuit circulation, which directly circulates cooling oil to a peripheral portion of a bearing of the motor to achieve the effect of cooling and cooling.

Therefore, the present invention provides a motor having an oil circuit circulation, comprising a motor body, a bearing is disposed at an end portion, a rotating shaft is disposed through the outer casing, and is rotatably disposed on the bearing, and an oil passage space is disposed at a periphery of the bearing, The oil tank has an oil inlet pipe and a return oil pipe respectively connected to the oil passage space, and a pump circulates the cooling oil in the oil tank through the oil inlet pipe and the oil return pipe between the oil passage space and the oil tank, thereby cooling the peripheral portion of the bearing.

For the above purposes, the present invention is provided with a temperature sensor at the periphery of the bearing for monitoring the bearing temperature.

For a detailed description of the preferred embodiments of the various drawings, reference should be made to the details of the invention.

Please refer to FIG. 1 , which is an external view of a motor having an oil circuit circulation according to the present invention. The motor having the oil circuit circulation includes a motor body 10 and a fuel tank 20 connected to the motor body 10, and is connected to the motor body 10 through the oil tank 20, so that the cooling oil can directly cool and cool the connection portion.

2 and FIG. 3, FIG. 2 is an exploded view of a motor having an oil circuit cycle according to the present invention, and FIG. 3 is a cross-sectional view of the motor body of the present invention. The motor body 10 is provided with a fixing portion 11 and 12 respectively. A rotor 30 and a set of stators 40 are disposed between the two fixing portions 11 and 12. The motor body 10 has a rotating shaft 13 extending therefrom. The bearing 30 is mounted on the rotor 30 and extends to the outside of the two fixing portions 11 and 12, and the two fixing portions 11 and 12 are respectively provided with bearings 50 for providing the rotating shaft 13 to be rotatably disposed on the bearing 50 and rotating relative to the motor body 10.

An oil passage space 14, 15 is disposed around the circumference of the bearing 50 of the two fixing portions 11, 12, and a coupling groove 16, 17 is provided at the side for fixing an outer cover 60, respectively. In the present invention, the two ends of the motor body 10 and the corresponding components are both left and right symmetrical. Therefore, for the sake of explanation and simplicity of the drawings, only the description of FIG. 2 is shown as a representative, wherein the oil passage space 14 is provided. A first oil hole 141 and a second oil hole 142 communicate with each other, and the outer cover 60 has a through hole 61 for the end of the rotating shaft 13, and the outer cover 60 is screwed to the coupling groove 16 and 17 through a plurality of bolts 62. A pair of large and small O-rings 70, 71 are respectively disposed between the outer cover 60 and the coupling grooves 16, 17 to avoid leakage of the cooling oil. In addition, the perforations 61 of the outer cover 60 are provided with a belt. The fixing member 63 of the through hole 64 and the fixing member 63 are also locked to the fixing portion 11 by bolts 65 so that the end portion of the rotating shaft 13 is exposed to the through hole 64.

The oil tank 20 includes a pump 21, and the oil tank 20 communicates with the first oil hole 141 through an oil inlet pipe 22, and the oil tank 20 communicates with the second oil hole 142 through a return oil pipe 23, so that the oil tank 20 is pumped. The cooling oil inside is circulated between the oil passage space 14 and the oil tank 20 via the oil inlet pipe 22 and the oil return pipe 23. By the same token, the oil passage spaces 14, 15 at both ends of the motor body 10 can form an oil circuit circulation with the oil tank 20 by the foregoing structure. In addition, a temperature sensor 80 is disposed between the oil passage space 14 of the present invention and the fixing member 63 and adjacent to the bearing 50 for monitoring the temperature of the bearing 50. When the operating temperature of the bearing 50 exceeds a predetermined value, the motor can be stopped. The operation is suspended, wherein the temperature sensor 80 is similar to the bolt type for threading the screw hole 66 of the fixing member 63 to be screwed to the sensing hole 161 of the periphery of the bearing 50.

Please refer to FIG. 4, which is a partial cross-sectional view of the motor body of the present invention. The present invention provides an oil passage space 14 at the periphery of the bearing 50, and circulates the cooling oil to the oil passage space 14 through the oil inlet pipe 22 and the oil return pipe 23, thereby directly providing cooling oil to the bearing 50 portion of the motor body 10 having a higher operating temperature. The cycle can achieve the effect of cooling and cooling. Wherein, the heat convection is upward, and the return pipe 23 is disposed higher than the inlet pipe 22 to achieve a better cooling effect.

In summary, the motor having the oil circuit circulation is provided with the oil passage space at the peripheral portion of the two bearings of the motor body, and is connected to the oil tank to circulate the cooling oil between the oil passage space and the oil tank, so that it can directly The higher working temperature of the motor body is cooled and cooled to extend the service life of the motor. Further, through the oil circulation path, the oil circulates in the fuel tank, the inlet and outlet pipes, and the oil passage space without contact with the outside world. The utility model can avoid the situation that the conventional structure is easy to generate waste of oil, and does not cause any problems affecting air and human discomfort; in addition, the invention can be provided with a temperature sensor adjacent to the bearing, and can monitor the temperature of the bearing at any time. Exceeding the preset value, to control whether the motor is running or not, so as to protect the bearing.

The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. Any modifications or variations that are made without departing from the spirit of the invention are intended to be protected.

10. . . Motor body

11,12. . . Fixed part

13. . . Rotating shaft

14,15. . . Oil road space

141. . . First oil hole

142. . . Second oil hole

16, 17. . . Combined slot

161. . . Sense hole

20. . . tank

twenty one. . . Pump

twenty two. . . Inlet pipe

twenty three. . . Oil return pipe

30. . . Rotor

40. . . stator

50. . . Bearing

60. . . s

61. . . perforation

62. . . bolt

63. . . Fastener

64. . . Through hole

65. . . bolt

66. . . Screw hole

70, 71. . . O-ring

80. . . Temperature sensor

1 is an external view of a motor having an oil circuit circulation according to the present invention; [FIG. 2] is an exploded view of a motor having an oil circuit cycle according to the present invention; [FIG. 3] is a sectional view of a motor body according to the present invention; 4] is a partial cross-sectional view of the motor body of the present invention.

10. . . Motor body

13. . . Rotating shaft

14. . . Oil road space

141. . . First oil hole

142. . . Second oil hole

twenty two. . . Inlet pipe

twenty three. . . Oil return pipe

50. . . Bearing

Claims (9)

A motor having an oil circuit circulation, comprising: a motor body, wherein a bearing is disposed at an end; a rotating shaft is disposed on the motor body and is rotatably disposed on the bearing; an oil passage space is disposed on the motor a bearing tank; a fuel tank having an oil inlet pipe and a return oil pipe respectively communicating with the oil passage space; and a pump for circulating cooling oil in the oil tank through the oil inlet pipe and the oil return pipe to circulate in the oil passage space Between the fuel tanks. A motor having an oil circuit circulation according to claim 1, wherein an end portion of the motor body is provided with a first oil hole and a second oil hole connected to the oil passage space to be respectively connected to the oil inlet pipe and Return to the oil pipe. A motor having an oil circuit circulation according to claim 1, wherein an end portion of the motor body is provided with a coupling groove communicating with the oil passage space, and the coupling groove is fixed with an outer cover. A motor having an oil circuit circulation according to claim 3, wherein the outer cover has a through hole for the end of the rotating shaft to pass through. A motor having an oil circulation according to claim 3, wherein a pair of large and small O-rings are disposed between the outer cover and the coupling groove. The motor of claim 4, wherein the perforation of the outer cover is sleeved with a fixing member having a through hole, and the fixing member is fixed to the coupling groove, so that the end of the rotating shaft is exposed hole. A motor having an oil circuit circulation according to claim 6, wherein a temperature sensor is disposed between the fixing member and the oil passage space. The motor having the oil circuit circulation according to claim 6, wherein the fixing member has a screw hole, and the oil passage space is provided with a sensing hole at a periphery of the bearing, and the temperature sensor is disposed on the screw hole and the sensing hole. . A motor having an oil circuit circulation as claimed in claim 1, wherein the return pipe is disposed at a position higher than the oil inlet pipe.