CN212935622U - Direct-drive variable-frequency permanent magnet synchronous motor for centrifugal refrigerator - Google Patents
Direct-drive variable-frequency permanent magnet synchronous motor for centrifugal refrigerator Download PDFInfo
- Publication number
- CN212935622U CN212935622U CN202021556114.1U CN202021556114U CN212935622U CN 212935622 U CN212935622 U CN 212935622U CN 202021556114 U CN202021556114 U CN 202021556114U CN 212935622 U CN212935622 U CN 212935622U
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- lubricating oil
- casing
- rear bearing
- outer cover
- front bearing
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The utility model discloses a centrifugal chiller directly drives and uses frequency conversion permanent magnet synchronous motor, including the frame bottom plate, fix the casing on the frame bottom plate, the center is provided with the pivot in the casing, be provided with stator and rotor in the casing, be fixed with the lubricating oil system on the outer wall of casing, the lubricating oil system includes the lubricating-oil tank, the lubricating-oil pump, electric heater and oil cooler, top at the casing is fixed with the outlet box, both ends at the casing are provided with front bearing and rear bearing respectively, the pivot is passed through front bearing and rear bearing and is connected in the casing, front bearing department is provided with the front bearing enclosing cover, rear bearing department is provided with the rear bearing enclosing cover, lubricating oil guide passageway has been seted up on the casing. The utility model discloses a structure sets up rationally, and it not only has better cooling performance, is favorable to improving the life of motor, has saved heavy gear box simultaneously, very big reduction motor operation noise, also is favorable to reducing the volume of motor simultaneously, and the suitability is strong and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of motor for the centrifugal refrigerator, concretely relates to send out.
Background
The motor for the centrifugal refrigerator is a common technical structure, the motor in the prior art mainly comprises a rotor, a front end cover, a stator, a bearing outer cover and the like, although the motor can meet the market demand, the motor can generate a large amount of heat when in use, the cooling effect in the motor in the prior art is poor, the use stability of the motor can be influenced, the motor in the prior art is controlled by adopting a gear box more, the running noise is large, and the applicability and the practicability are limited.
Disclosure of Invention
The utility model aims at providing a structure sets up rationally and uses steady reliable centrifugal refrigerator to directly drive and use frequency conversion permanent magnet synchronous motor.
The technical scheme for realizing the purpose of the utility model is that the frequency conversion permanent magnet synchronous motor for direct drive of the centrifugal refrigerator comprises a base bottom plate and a casing fixed on the base bottom plate, a rotating shaft is arranged at the center in the casing, a stator and a rotor are arranged in the casing, the rotor is arranged at the outer side of the rotating shaft, the stator is arranged at the outer side of the rotor, a lubricating oil system is fixed on the outer wall of the casing, the lubricating oil system comprises a lubricating oil tank, a lubricating oil pump, an electric heater and an oil cooler, a wire outlet box is fixed at the top of the casing, a front bearing and a rear bearing are respectively arranged at two ends of the casing, the rotating shaft is connected in the casing through the front bearing and the rear bearing, a front bearing outer cover is arranged at the front bearing, a rear bearing outer cover is arranged at the rear bearing, and a lubricating oil guide channel, one end of the lubricating oil guide channel extends to a position between the rear bearing and the outer cover of the rear bearing, the other end of the lubricating oil guide channel is connected with the lubricating oil pump, an oil inlet pipe of the lubricating oil pump extends into the lubricating oil tank, enters the front bearing and the rear bearing through the lubricating oil guide channel and then flows back to the lubricating oil tank through the oil cooler, and the electric heater is wrapped on the lubricating oil guide channel.
The side wall of the casing is provided with a sealing ring groove, the sealing ring groove and the rotating shaft are concentrically arranged, the side surfaces of the front bearing outer cover and the rear bearing outer cover are integrally provided with a sealing snap ring, and when the front bearing outer cover and the rear bearing outer cover are connected with the casing, the sealing snap ring is clamped into the sealing ring groove to realize sealing.
And a threaded sight glass is fixed on the outer cover of the rear bearing.
Sealing gaskets are fixed between the front bearing outer cover and the surface of the rotating shaft, and between the rear bearing outer cover and the surface of the rotating shaft.
The utility model discloses has positive effect: the utility model discloses a structure sets up rationally, and it not only has better cooling performance, is favorable to improving the life of motor, has saved heavy gear box simultaneously, very big reduction motor operation noise, also is favorable to reducing the volume of motor simultaneously to can guarantee the motor and operate steady reliability, the suitability is strong and the practicality is good.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional structure diagram of the present invention.
Detailed Description
(example 1)
Fig. 1 and 2 show an embodiment of the present invention, wherein fig. 1 is a schematic structural diagram of the present invention; fig. 2 is a sectional structure diagram of the present invention.
Referring to fig. 1 and 2, a direct-drive variable frequency permanent magnet synchronous motor for a centrifugal refrigerator comprises a base bottom plate 1 and a casing 2 fixed on the base bottom plate, wherein a rotating shaft 3 is arranged at the center in the casing, a stator 4 and a rotor 5 are arranged in the casing, the rotor is positioned at the outer side of the rotating shaft, the stator is positioned at the outer side of the rotor, a lubricating oil system 6 is fixed on the outer wall of the casing, the lubricating oil system comprises a lubricating oil tank 61, a lubricating oil pump 62, an electric heater 63 and an oil cooler 64, a wire outlet box 7 is fixed at the top of the casing, a front bearing 8 and a rear bearing 9 are respectively arranged at two ends of the casing, the rotating shaft is connected in the casing through the front bearing and the rear bearing, a front bearing outer cover 14 is arranged at the front bearing, a rear bearing outer cover 15 is arranged at the rear bearing, and a lubricating oil guide channel 10, one end of the lubricating oil guide channel extends to a position between the rear bearing and the outer cover of the rear bearing, the other end of the lubricating oil guide channel is connected with the lubricating oil pump, an oil inlet pipe of the lubricating oil pump extends into the lubricating oil tank, enters the front bearing and the rear bearing through the lubricating oil guide channel and then flows back to the lubricating oil tank through the oil cooler, and the electric heater is wrapped on the lubricating oil guide channel.
The side wall of the casing is provided with a sealing ring groove 11, the sealing ring groove and the rotating shaft are concentrically arranged, the side surfaces of the front bearing outer cover and the rear bearing outer cover are integrally provided with a sealing snap ring 12, and when the front bearing outer cover and the rear bearing outer cover are connected with the casing, the sealing snap ring is clamped into the sealing ring groove to realize sealing.
A screw sight glass 13 is fixed to the rear bearing outer cover.
Sealing gaskets are fixed between the front bearing outer cover and the surface of the rotating shaft, and between the rear bearing outer cover and the surface of the rotating shaft.
The utility model discloses a structure sets up rationally, and it not only has better cooling performance, is favorable to improving the life of motor, has saved heavy gear box simultaneously, very big reduction motor operation noise, also is favorable to reducing the volume of motor simultaneously to can guarantee the motor and operate steady reliability, the suitability is strong and the practicality is good.
The standard parts used in the present embodiment can be purchased directly from the market, and the non-standard structural parts described in the specification can also be obtained directly by processing according to the common general knowledge of the prior art without any doubt, and the connection mode of the parts adopts the conventional means matured in the prior art, and the machines, parts and equipment adopt the conventional models in the prior art, so that the detailed description is not given here.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (4)
1. The utility model provides a centrifugal chiller directly drives with frequency conversion permanent magnet synchronous motor, includes the frame bottom plate, fixes casing on the frame bottom plate the center is provided with the pivot in the casing be provided with stator and rotor in the casing, the outside that the rotor is in the pivot and the outside that the stator is in the rotor, its characterized in that: a lubricating oil system is fixed on the outer wall of the shell and comprises a lubricating oil tank, a lubricating oil pump, an electric heater and an oil cooler, an outlet box is fixed on the top of the shell, a front bearing and a rear bearing are respectively arranged at two ends of the shell, the rotating shaft is connected in the shell through the front bearing and the rear bearing, a front bearing outer cover is arranged at the front bearing, a rear bearing outer cover is arranged at the rear bearing, a lubricating oil guide channel is arranged on the shell, one end of the lubricating oil guide channel extends to a position between the rear bearing and the outer cover of the rear bearing, the other end of the lubricating oil guide channel is connected with a lubricating oil pump, an oil inlet pipe of the lubricating oil pump extends into the lubricating oil tank, enters the front bearing and the rear bearing through the lubricating oil guide channel, then flows back into the lubricating oil tank through the oil cooler, and the electric heater is wrapped on the lubricating oil guide channel.
2. The direct-drive variable-frequency permanent magnet synchronous motor of the centrifugal chiller according to claim 1, characterized in that: the side wall of the casing is provided with a sealing ring groove, the sealing ring groove and the rotating shaft are concentrically arranged, the side surfaces of the front bearing outer cover and the rear bearing outer cover are integrally provided with a sealing snap ring, and when the front bearing outer cover and the rear bearing outer cover are connected with the casing, the sealing snap ring is clamped into the sealing ring groove to realize sealing.
3. The direct-drive variable-frequency permanent magnet synchronous motor of the centrifugal chiller according to claim 2, characterized in that: and a threaded sight glass is fixed on the outer cover of the rear bearing.
4. The direct-drive variable-frequency permanent magnet synchronous motor of the centrifugal chiller according to claim 3, characterized in that: sealing gaskets are fixed between the front bearing outer cover and the surface of the rotating shaft, and between the rear bearing outer cover and the surface of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556114.1U CN212935622U (en) | 2020-07-31 | 2020-07-31 | Direct-drive variable-frequency permanent magnet synchronous motor for centrifugal refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021556114.1U CN212935622U (en) | 2020-07-31 | 2020-07-31 | Direct-drive variable-frequency permanent magnet synchronous motor for centrifugal refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212935622U true CN212935622U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021556114.1U Active CN212935622U (en) | 2020-07-31 | 2020-07-31 | Direct-drive variable-frequency permanent magnet synchronous motor for centrifugal refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212935622U (en) |
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2020
- 2020-07-31 CN CN202021556114.1U patent/CN212935622U/en active Active
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