CN210246476U

CN210246476U - Three-phase motor with shaft seal mechanism

Info

Publication number: CN210246476U
Application number: CN201921437583.9U
Authority: CN
Inventors: Xueming Xu; 徐学明; Zhi Li; 李志�
Original assignee: Nantong Tongde Electric Equipment Co ltd
Current assignee: Nantong Tongde Electric Equipment Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-04-03
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a three-phase motor with shaft seal mechanism, which comprises a main shaft, a rotating shaft and a base, wherein one end of the main shaft is fixedly connected with the middle part of one side of a cooling fan, one side of the inner wall of the main shaft is fixedly provided with an oil baffle ring, one side of the oil baffle ring is connected with one end of one Teflon sealing ring in a clamping way, the other end of one Teflon sealing ring is connected with one end of an oil packing in a laminating way, and the other end of the oil packing is connected with one end of the other Teflon sealing ring in a laminating way, the utility model discloses a three-phase motor with shaft seal mechanism, labyrinth seal is formed between the two Teflon sealing rings, the Teflon sealing rings have better wear resistance and lubricity, the sealing effect of the main shaft can be effectively enhanced, the service life of the motor can be prolonged, meanwhile, the oil packing can play the effect of sealing the main shaft at high temperature, and oil can seep out to lubricate the, to reduce the labor of the operator.

Description

Three-phase motor with shaft seal mechanism

Technical Field

The utility model relates to a three-phase motor, in particular to three-phase motor with bearing seal mechanism belongs to electromechanical technical field.

Background

An AC motor driven by three-phase AC power. The three-phase motor is characterized in that when three-phase stator windings (with the difference of 120 electrical degrees) of the motor are electrified with three-phase alternating current, a rotating magnetic field is generated and cuts a rotor winding to generate electricity. The motor comprises a three-phase synchronous motor and a three-phase asynchronous motor.

The existing three-phase motor is not provided with a shaft seal structure, so that the sealing effect of a main shaft is poor, the service life of the motor is shortened, the lubricating effect between the main shaft and a bearing can be enhanced only by frequently adding oil to the bearing, and the operation is troublesome; the existing three-phase motor does not have a damping and buffering structure, and the motor can generate strong vibration during operation, so that the operation of the motor is subject to error due to the vibration, and the practicability of the motor is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-phase motor with bearing seal mechanism to solve the problem that the current three-phase motor that proposes does not possess the shaft seal structure among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a three-phase motor with a shaft seal mechanism comprises a main shaft, a rotating shaft and a base, wherein one end of the main shaft is fixedly connected with the middle part of one side of a cooling fan, an oil baffle ring is fixedly arranged on one side of the inner wall of the main shaft, one side of the oil baffle ring is clamped and connected with one end of one Teflon sealing ring, the other end of one Teflon sealing ring is attached and connected with one end of an oil packing, the other end of the oil packing is attached and connected with one end of the other Teflon sealing ring, the other end of the other Teflon sealing ring is clamped and connected with one side of a bearing, a rotor is sleeved on the outer wall of the main shaft, a stator is fixedly arranged on one side of the bearing, the middle part of one side of the bearing is fixedly connected with one end of the rotating shaft, the middle part of the rotating shaft is connected with the middle part of one side of, and main shaft, cooling fan, rotor and bearing all set up the inside at the housing, the fixed end cover that is equipped with of opposite side of stator, the fixed bearing cap that is equipped with in middle part of end cover one side, and the middle part of bearing cap one side and the other end alternate of pivot and be connected, the bottom of housing and the bottom of stator respectively with the both sides fixed connection on frame top.

As an optimal technical scheme of the utility model, a plurality of T shape spouts, a plurality of have been seted up to the bottom of frame the top of T shape spout inner wall is all fixed and is equipped with second buffer spring, and is a plurality of second buffer spring's bottom respectively with the top fixed connection of a plurality of T shape slide bars, and the top of a plurality of T shape slide bars respectively with the inner wall sliding connection of a plurality of T shape spouts, a plurality of the bottom of T shape slide bar respectively with the top fixed connection of balancing weight, a plurality of the outer wall of T shape slide bar all overlaps and is equipped with first buffer spring.

As an optimized technical scheme of the utility model, the outer wall cover of main shaft is equipped with the seal cover.

As a preferred technical scheme of the utility model, a plurality of waterproof heat dissipation through-holes have been seted up to one side of housing, and are a plurality of the inside of heat dissipation through-hole is all fixed and is equipped with the dust screen.

As a preferred technical scheme of the utility model, the positive middle part of stator is fixed and is equipped with the terminal box, cooling fan passes through inside circuit and the external power supply electric connection of terminal box.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a three-phase motor with bearing seal mechanism, form labyrinth seal between two teflon sealing rings, and teflon sealing ring self possess better wearability and lubricity, can effectively strengthen the sealed effect of main shaft to prolong the life of motor, oily packing can play the effect of sealed main shaft under high temperature simultaneously, and can ooze the oil body and lubricate main shaft and bearing, in order to lighten operating personnel's the amount of labour; the motor produces vibrations when moving and is mutually supported and slow down by T shape spout, T shape slide bar, first buffer spring and second buffer spring for the motor possesses better shock attenuation shock-absorbing capacity, can effectively avoid the motor error to appear when moving, thereby improves the practicality of motor.

Drawings

Fig. 1 is a schematic front structural view of the present invention.

Fig. 2 is a schematic structural diagram of the spindle of the present invention.

Fig. 3 is an enlarged view of the position a of the present invention.

In the figure: 1. a main shaft; 2. a housing; 3. a cooling fan; 4. a balancing weight; 5. a rotor; 6. a bearing; 7. a stator; 8. a junction box; 9. an end cap; 10. a bearing cap; 11. a rotating shaft; 12. a machine base; 13. a T-shaped slide bar; 14. an oil baffle ring; 15. a Teflon seal ring; 16. an oily packing; 17. sealing sleeves; 18. a first buffer spring; 19. a T-shaped chute; 20. a second buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a three-phase motor with a shaft seal mechanism, including a main shaft 1, a rotating shaft 11 and a base 12, one end of the main shaft 1 is fixedly connected with the middle portion of one side of a cooling fan 3, which can dissipate heat inside the motor, one side of the inner wall of the main shaft 1 is fixedly provided with an oil baffle ring 14, which can block oil in the main shaft 1, one side of the oil baffle ring 14 is connected with one end of one teflon seal ring 15 in a clamping manner, the other end of one teflon seal ring 15 is connected with one end of a packing oil 16 in an attaching manner, the other end of the packing oil 16 is connected with one end of the other teflon seal ring 15 in an attaching manner, which effectively enhances the sealing performance of the main shaft 1, the other end of the other teflon seal ring 15 is connected with one side of a bearing 6 in a clamping manner, the outer wall of the main shaft 1 is provided with, the middle of one side of the bearing 6 is fixedly connected with one end of the rotating shaft 11, the middle of the rotating shaft 11 is connected with the middle of one side of the stator 7 in an inserting manner, the housing 2 is fixedly arranged on the side of one side of the stator 7, the main shaft 1, the cooling fan 3, the rotor 5 and the bearing 6 are all arranged in the housing 2, the end cover 9 is fixedly arranged on the other side of the stator 7, the bearing cover 10 is fixedly arranged in the middle of one side of the end cover 9, the middle of one side of the bearing cover 10 is connected with the other end of the rotating shaft 11 in an inserting manner, and the bottom end of the housing 2 and the bottom end of the stator; the bottom end of the base 12 is provided with a plurality of T-shaped sliding grooves 19, the top ends of the inner walls of the T-shaped sliding grooves 19 are fixedly provided with second buffer springs 20, the bottom ends of the second buffer springs 20 are fixedly connected with the top ends of the T-shaped sliding rods 13 respectively, the top ends of the T-shaped sliding rods 13 are slidably connected with the inner walls of the T-shaped sliding grooves 19 respectively, the bottom ends of the T-shaped sliding rods 13 are fixedly connected with the top ends of the balancing weights 4 respectively, and the outer walls of the T-shaped sliding rods 13 are sleeved with first buffer springs 18, so that the damping and buffering effects of the motor are effectively enhanced; the outer wall of the main shaft 1 is sleeved with a sealing sleeve 17, so that the sealing property of the main shaft 1 can be enhanced; a plurality of waterproof heat dissipation through holes are formed in one side of the housing 2, and dust screens are fixedly arranged in the heat dissipation through holes, so that air in the housing 2 can flow; the middle part of the front surface of the stator 7 is fixedly provided with a junction box 8, and the cooling fan 3 is electrically connected with an external power supply through a circuit inside the junction box 8.

When in use, the utility model relates to a three-phase motor with shaft seal mechanism, one side of the inner wall of a main shaft 1 is provided with an oil baffle ring 14, one side of the oil baffle ring 14 is connected with a Teflon sealing ring 15 in a clamping way, labyrinth seal is formed between the two Teflon sealing rings 15, the Teflon sealing rings 15 have better wear resistance and lubricity, the sealing effect of the shaft seal structure can be effectively improved, high temperature can be generated in the motor operation process, the sealing effect of the labyrinth seal can be reduced under high temperature, at the moment, because the two ends of an oil packing 16 are respectively attached to the two ends of the two Teflon sealing rings 15, the oil packing 16 can replace the labyrinth seal to effectively improve the sealing effect of the shaft seal structure, meanwhile, the oil body can seep out from the inside of the oil packing 16 under high temperature, the seeped oil body can lubricate the main shaft 1 and a bearing 6, the phenomenon that an operator refuels for many times is avoided, thereby reducing the, the T-shaped sliding rod 13 slides in the T-shaped sliding groove 19 when the motor operates to reduce the vibration generated when the motor operates, and meanwhile, the first buffer spring 18 and the second buffer spring 20 can effectively reduce the vibration generated when the motor operates, so that the damping and buffering performance of the motor is improved, the error generated when the motor operates is avoided, and the practicability of the motor is improved.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A three-phase motor with a shaft seal mechanism comprises a main shaft (1), a rotating shaft (11) and a base (12), and is characterized in that one end of the main shaft (1) is fixedly connected with the middle of one side of a cooling fan (3), an oil blocking ring (14) is fixedly arranged on one side of the inner wall of the main shaft (1), one side of the oil blocking ring (14) is connected with one end of one Teflon sealing ring (15) in a clamping manner, the other end of one Teflon sealing ring (15) is connected with one end of an oil packing (16) in an attaching manner, the other end of the oil packing (16) is connected with one end of the other Teflon sealing ring (15) in a bonding manner, the other end of the other Teflon sealing ring (15) is connected with one side of a bearing (6) in a clamping manner, a rotor (5) is sleeved on the outer wall of the main shaft (1), a stator (7) is fixedly arranged on one side of the bearing, the middle part of bearing (6) one side and the one end fixed connection on pivot (11), and the middle part of pivot (11) and the middle part of stator (7) one side alternate and be connected, the avris of stator (7) one side is fixed and is equipped with housing (2), and main shaft (1), cooling fan (3), rotor (5) and bearing (6) all set up the inside at housing (2), the opposite side of stator (7) is fixed and is equipped with end cover (9), the middle part of end cover (9) one side is fixed and is equipped with bearing cap (10), and the middle part of bearing cap (10) one side alternates with the other end of pivot (11) and be connected, the bottom of housing (2) and the bottom of stator (7) respectively with the both sides fixed connection on frame (12) top.

2. The three-phase motor with a shaft seal mechanism according to claim 1, wherein: a plurality of T shape spout (19) have been seted up to the bottom of frame (12), and is a plurality of the top of T shape spout (19) inner wall is all fixed and is equipped with second buffer spring (20), and is a plurality of the bottom of second buffer spring (20) respectively with the top fixed connection of a plurality of T shape slide bar (13), and the top of a plurality of T shape slide bar (13) respectively with the inner wall sliding connection of a plurality of T shape spout (19), a plurality of the bottom of T shape slide bar (13) respectively with the top fixed connection of balancing weight (4), a plurality of the outer wall of T shape slide bar (13) all overlaps and is equipped with first buffer spring (18).

3. The three-phase motor with a shaft seal mechanism according to claim 1, wherein: the outer wall of the main shaft (1) is sleeved with a sealing sleeve (17).

4. The three-phase motor with a shaft seal mechanism according to claim 1, wherein: a plurality of waterproof heat dissipation through holes are formed in one side of the housing (2), and dust screens are fixedly arranged inside the heat dissipation through holes.

5. The three-phase motor with a shaft seal mechanism according to claim 1, wherein: the middle part of the front surface of the stator (7) is fixedly provided with a junction box (8), and the cooling fan (3) is electrically connected with an external power supply through a circuit inside the junction box (8).