CN116317289A

CN116317289A - Closed motor with inside and outside cooling structure

Info

Publication number: CN116317289A
Application number: CN202310243243.7A
Authority: CN
Inventors: 吴伟; 杨旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-06-23

Abstract

A closed motor with an internal and external cooling structure belongs to the technical field of motor equipment, and aims to solve the problems that when a cooling fan is arranged in the existing closed motor, a normally open vent hole is arranged on the outer wall of a shell for ventilation, so that external liquid is easy to permeate from the vent hole, and the motor is damaged; according to the invention, the outer wall of the outer shell at the air outlet of the protective cover ring sleeve is utilized, the air guide cover separates the protective cover from the guide cylinder to form the air inlet and air outlet channels, the deflection sealing plate is controlled to move in a linkage manner based on the regulating rope, the winding wheel and the elastic piece, when the air flow fan rotates to blow the rotor winding, the air flow pushes the deflection sealing plate to synchronously open the sealing of the deflection sealing plate to the guide cover when deflecting, and the air flow is automatically reset after the air flow is finished, so that the air flow in and out of the outer shell can be exchanged by virtue of the air inlet and air outlet channels in a rapid circulating manner, and meanwhile, the protective cover separates the air outlet from the guide cylinder port, thereby effectively avoiding the problem that the motor is damaged by the permeation of liquid from the ventilation holes on the side wall of the outer shell.

Description

Closed motor with inside and outside cooling structure

Technical Field

The invention relates to the technical field of motor equipment, in particular to a closed motor with an internal and external cooling structure.

Background

The shell of the closed structure can prevent the free exchange of the air inside and outside the motor, so that the structure has good protective performance, but has poor heat dissipation performance, and the internal parts of the motor are easy to overheat and burn out due to overlong service time, so that the heat dissipation of the closed motor is an urgent problem to be solved urgently.

In the prior art, in order to realize the inside heat dissipation to sealed motor, set up the fan on the outer wall of rotor shaft, utilize the fan to produce highly flowing air current along with the rotation of rotor shaft to dispel the heat to the internals of motor, as the patent of publication No. CN218335565U discloses a sealed motor that is equipped with inside and outside cooling wind way, including outer box, be equipped with the motor group in the outer box, the motor group left side is equipped with cooling module, and outer box bottom is equipped with the liquid collecting subassembly. When the motor group rotates, the fan can be driven to rotate, so that the heat dissipation effect is improved; if the coolant liquid seepage time, rely on self weight to fall into the bottom, fall into the collecting tank through the surface through-hole, take off the caping of liquid outlet at last for the coolant liquid is retrieved and is handled in flowing to the container, prevents that the coolant liquid from detaining inside and causing the damage to the motor unit, improves the life and the security of using of motor unit. However, although the heat dissipation to the parts can be enhanced by arranging the fan inside the existing closed motor, normally open vent holes are needed to be arranged so as to exchange air inside and outside the motor, potential safety hazards exist in the normally open vent holes when the motor is used, and external liquid easily permeates into the motor from the vent holes, so that damage is caused to the motor.

Thus, a closed motor with an internal and external cooling structure is proposed.

Disclosure of Invention

The invention aims to provide a closed motor with an internal and external cooling structure, and aims to solve the problems that in the prior art, when a cooling fan is arranged in the existing closed motor, a normally open vent hole is required to be arranged on the outer wall of a shell for ventilation, and the normally open vent hole is easy to cause penetration of external liquid when the motor is used, so that the motor is damaged.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a closed motor with inside and outside cooling structure, including shell body and fixed connection cooling fin on the outer wall of shell body both sides, the activity is provided with the rotor shaft between the both ends inner wall of shell body, the one end of rotor shaft runs through and extends to the shell body outside, its other end runs through rotor winding setting, fixedly connected with air current fan on the rotor shaft outer wall of rotor winding one side, the outside of rotor winding is provided with the guard frame, the guard frame passes through the dead lever suspension in the shell body inside, the guard frame lifts rotor winding, through dead lever fixedly connected with protection casing on the outer wall of shell body one end, the inner wall fixedly connected with kuppe of protection casing, protection casing and kuppe all overlap in shell body end outside, be provided with annular dust screen between the inner wall of protection casing port department and the outer wall, annular dust screen laminating kuppe port lateral wall sets up, and shell body end lateral wall middle part department fixedly connected with guide cylinder that is linked together, the end of guide cylinder runs through guide cylinder end lateral wall and extends to its opposite side, set up the gas outlet on the shell body end lateral wall of guide cylinder upper and lower both sides, the activity is provided with the deflector seal plate between the inner wall, the outer wall of guide cylinder upper and lower both sides respectively the movable seal plate is provided with the deflector rope on the outer wall of guide cylinder upper and lower both ends respectively, the movable seal plate is connected with the deflector rope fixed connection in the end through the wire casing fixed connection, the end is fixed connection in the end of deflector.

Further, the protective cover is arranged on the outer wall of the outer shell far away from one side of the exposed end of the rotor shaft, the protective cover and the air guide sleeve are both coaxially arranged with the outer shell, the air guide sleeve divides a gap between the protective cover and the outer shell into an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are respectively arranged corresponding to the air guide sleeve and the air outlet.

Further, when the deflection sealing plates are vertically clamped in the air outlet, the movable sealing plates at the upper end and the lower end of the guide cylinder are mutually attached, and the sealing groove on the outer wall of the end head of one movable sealing plate is movably clamped on the outer wall of the protruding part of the other end head, at the moment, the adjusting rope is tightened, and the elastic piece keeps a normal diastole state.

Further, the deflection sealing plate comprises a hollow plate and a sealing gasket fixedly connected to the circumferential side wall of the hollow plate, the hollow plate is movably arranged between the inner walls of the two sides of the air outlet through positioning shafts at the two ends, a counterweight magnetic block is embedded and installed on the outer wall of one end of the hollow plate, and the counterweight magnetic block is flush with the outer wall of the hollow plate and wraps the inner side of the sealing gasket.

Further, the inner wall of the port of the protective cover is provided with a mounting groove, the mounting groove is arranged outside the port of the guide cover, an annular air cushion is arranged inside the mounting groove, a sealing film is fixedly connected between the inner walls of the port of the mounting groove, reaction boxes are uniformly and fixedly connected to the outer wall of the corresponding port of the protective cover at intervals, and the reaction boxes are communicated with the annular air cushion through air ducts.

Further, the protection frame comprises a mounting side plate and an annular support fixedly connected to the outer wall of the mounting side plate, communication holes are uniformly formed in the side wall of the mounting side plate on the inner side of the annular support, the mounting side plate is suspended between the inner walls of the outer shell through fixing rods on the circumferential side wall, the annular supports at the two ends of the inner part of the outer shell are attached to form a frame body to cover the rotor winding, supporting plates are fixedly connected to the inner walls of the ends of the annular support at equal intervals, and the supporting plates are fixedly connected with the rotor winding to lift.

Further, the heat radiation fins comprise heat conduction strips penetrating through the outer walls of the two sides of the outer shell, one ends of the heat conduction strips extend to the inner part of the outer shell, the tail ends of the heat conduction strips are fixedly connected with arc heat conduction plates, the arc heat conduction plates are attached to the side walls of the rotor windings by extending into gaps among the annular supports, the other ends of the heat conduction strips extend to the outer part of the outer shell, and arc heat radiation fins are uniformly and fixedly connected to the outer walls of the tail ends of the heat conduction strips at intervals.

Further, a positioning piece is arranged on the inner wall of the outer shell at one side of the exposed end of the rotor shaft, one end of the rotor shaft is movably sleeved inside the positioning piece and then extends to the outside of the outer shell, a lubricating piece is fixedly connected to the inner wall of the outer shell at the upper end of the positioning piece, a meniscus is fixedly connected to the bottom plate of the outer shell between the positioning piece and the air flow fan, and an oil drain bolt is movably arranged on the bottom plate of the outer shell between the inner wall of the outer shell and the meniscus in a penetrating mode.

Further, the locating piece includes fixed section of thick bamboo on fixed connection in the shell inner wall and sets up in the spacing groove at fixed section of thick bamboo top, spacing groove intercommunication fixed section of thick bamboo inner chamber, fixed section of thick bamboo bottom both sides gomphosis is installed and is fixed the magnetic path, the inside block of fixed section of thick bamboo is provided with the sealing washer, the inside movable block of fixed section of thick bamboo in the sealing washer outside is installed and is fixed bearing, rotor shaft one end activity cup joints and runs through shell body end lateral wall and extends to its outside in locating bearing and sealing washer inner chamber rear end, fixedly connected with gag lever post on the outer steel ring outer wall of locating bearing, the gag lever post end extends to the fixed section of thick bamboo outside through the spacing groove.

Further, the lubricating piece comprises an oil storage box fixedly connected to the inner wall of the end head of the outer shell and an oil injection pipe fixedly connected to the top of the oil storage box, the top end of the oil injection pipe penetrates through the top plate of the outer shell and extends to the outside of the top plate, the bottom of the oil storage box is fixedly connected with an oil-dropping curved pipe, the tail end of the oil-dropping curved pipe is attached to a gap of an inner steel ring and an outer steel ring of a positioning bearing in a hanging mode, the bottom of the oil storage box on one side of the oil-dropping curved pipe is movably connected with a movable shifting plate, the movable shifting plate is arranged corresponding to a limiting rod, the bottom of the oil storage box on the adjacent part of the torsional spring is provided with a positioning cavity, an adjusting rod piece is movably arranged in the positioning cavity, the bottom of the adjusting rod piece is movably connected with a movable connecting rod, and the tail end of the movable connecting rod is movably connected to the side wall of the movable shifting plate;

the adjusting rod piece comprises an L-shaped rod which movably penetrates through the top plate of the positioning cavity, the bottom of the L-shaped rod is connected with a movable connecting rod, a limiting disc is fixedly connected to the outer wall of the L-shaped rod in the positioning cavity, a buffer spring is wound on the outer wall of the L-shaped rod between the limiting disc and the top plate of the positioning cavity, the other end of the L-shaped rod extends into the oil storage box, a sealing plug is fixedly connected to the bottom of the tail end of the L-shaped rod, and the lower end of the sealing plug is movably clamped in a port at the top of the oil dropping curved pipe.

Compared with the prior art, the invention has the following beneficial effects:

according to the closed motor with the internal and external cooling structure, the outer wall of the outer shell at the air outlet of the protective cover ring sleeve is utilized, the protective cover is separated from the guide sleeve to form the air inlet and outlet channels, the deflection sealing plate is controlled to move in a linkage mode based on the adjusting rope, the winding wheel and the elastic piece, when the rotor winding is blown by the air flow fan in the outer shell, the deflection sealing plate is pushed by the air flow to synchronously open the seal of the movable sealing plate to the guide sleeve when deflected, so that the air flow in and out of the outer shell is subjected to rapid circulating flow exchange by the air inlet and outlet channels, meanwhile, the protective cover separates the air outlet from the guide sleeve port, the tightness of the closed motor in use is fully ensured, the problem that the air inlet hole on the side wall of the outer shell is damaged by permeation of liquid is effectively avoided, the deflection sealing plate is deflected automatically by gravity after the air flow is ended, the movable sealing plate is pushed to reset based on the elastic piece, the automatic sealing of the air outlet and the guide sleeve is realized, and the waterproof property of the motor is ensured when the motor is not in use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the outer casing of the present invention;

fig. 3 is a schematic view of a mounting structure of a heat sink fin and a protective frame according to the present invention;

FIG. 4 is a schematic view of the mounting structure of the shield and outer housing of the present invention;

FIG. 5 is a graph of the trend of the airflow inside the shield and outer housing of the present invention;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5A according to the present invention;

FIG. 7 is a cross-sectional view of a deflector seal plate of the present invention;

FIG. 8 is a cross-sectional view of a shield of the present invention;

FIG. 9 is a schematic view of a positioning member and rotor winding mounting structure of the present invention;

FIG. 10 is a schematic view of the protective frame and rotor winding mounting structure of the present invention;

FIG. 11 is an exploded view of a positioning member of the present invention;

FIG. 12 is a schematic view of a lubricant structure according to the present invention;

fig. 13 is a cross-sectional view of the oil reservoir cartridge of the present invention.

In the figure: 1. an outer housing; 2. a heat radiation fin; 201. a heat conducting strip; 202. an arc-shaped heat conducting plate; 203. arc-shaped radiating fins; 3. a rotor shaft; 4. a rotor winding; 5. an air flow fan; 6. a protective frame; 61. installing a side plate; 62. an annular bracket; 63. a communication hole; 64. a support sheet; 7. a protective cover; 71. a mounting groove; 72. an annular air cushion; 73. a sealing film; 74. a reaction cassette; 75. an air duct; 8. a guide cover; 9. an annular dust screen; 10. a guide cylinder; 11. an air outlet; 12. deflecting the sealing plate; 121. a hollow slab; 122. a sealing gasket; 123. a counterweight magnet; 13. moving the sealing plate; 131. sealing grooves; 14. an elastic member; 15. an adjusting rope; 16. a reel; 17. a positioning piece; 171. a fixed cylinder; 172. a limit groove; 173. positioning a magnetic block; 174. a seal ring; 175. positioning a bearing; 176. a limit rod; 18. a lubricating member; 181. an oil storage box; 182. a filler pipe; 183. an oil drip curved pipe; 184. a movable shifting plate; 185. a torsion spring; 186. a positioning cavity; 187. an adjusting rod piece; 187. an adjusting rod piece; 1871. an L-shaped rod; 1872. a limiting disc; 1873. a buffer spring; 1874. a sealing plug; 188. a movable connecting rod; 19. a meniscus; 20. and an oil drain bolt.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, a closed motor with an internal and external cooling structure includes an outer casing 1 and heat dissipation fins 2 fixedly connected to outer walls of two sides of the outer casing 1, a rotor shaft 3 is movably disposed between inner walls of two ends of the outer casing 1, one end of the rotor shaft 3 extends to the outside of the outer casing 1 in a penetrating manner, the other end of the rotor shaft extends through a rotor winding 4, and an air flow fan 5 is fixedly connected to an outer wall of the rotor shaft 3 on one side of the rotor winding 4.

In order to solve the problem that when the existing enclosed motor is internally provided with a cooling fan, the outer wall of the shell is required to be provided with a normally open vent hole for ventilation, and the normally open vent hole is easy to cause penetration of external liquid when the motor is used, so that the motor is damaged, please refer to fig. 1-6 and 10, and the following preferable technical scheme is provided:

the protection frame 6 is suspended inside the outer shell 1 through the dead lever, the rotor winding 4 is lifted to the protection frame 6, fixedly connected with protection casing 7 through the dead lever on the outer wall of outer shell 1 one end, fixedly connected with kuppe 8 on the inner wall of protection casing 7, protection casing 7 and kuppe 8 all ring cover are outside outer shell 1 end, be provided with annular dust screen 9 between inner wall and outer shell 1 outer wall of protection casing 7 port department, annular dust screen 9 is used for preventing that the dust gets into inside the motor shell, annular dust screen 9 laminating kuppe 8 port lateral wall sets up, and shell 1 end lateral wall middle part department fixedly connected with guide tube 10 that is linked together, set up gas outlet 11 on the outer shell 1 end lateral wall at guide tube 10 upper and lower both ends, the activity is provided with deflection closing plate 12 between gas outlet 11 both sides inner wall, the activity is provided with movable sealing plate 13 on the outer wall at guide tube 10 upper and lower both ends respectively, be provided with the elastic component 14 through connecting strip fixedly connected with on the terminal lateral wall of movable sealing plate 13, elastic component 14 end fixedly connected with on guide tube 10 outer wall, the terminal fixedly connected with guide tube 15, the terminal fixedly connected with wire winding reel 15 on the terminal connection rope 15 is adjusted in the terminal connection 15 is fixed in its wire winding groove on the inner wall of guide tube 12 after the guide tube is fixed in the terminal connection of the guide tube 12.

The protection casing 7 is arranged on the outer wall of the outer shell 1 far away from one side of the exposed end of the rotor shaft 3, the protection casing 7 and the air guide sleeve 8 are both coaxially arranged with the outer shell 1, and the air guide sleeve 8 divides a gap between the protection casing 7 and the outer shell 1 into an air inlet channel and an air outlet channel which are respectively arranged corresponding to the guide sleeve 10 and the air outlet 11.

When the deflection sealing plates 12 are vertically clamped in the air outlet 11, the movable sealing plates 13 at the upper end and the lower end of the guide cylinder 10 are mutually attached, and the sealing groove 131 on the outer wall of the end of one movable sealing plate 13 is movably clamped on the outer wall of the protruding part of the other end, at this time, the adjusting rope 15 is tightened, and the elastic piece 14 keeps a normal diastole state.

The protection frame 6 comprises a mounting side plate 61 and an annular support 62 fixedly connected to the outer wall of the mounting side plate 61, communication holes 63 are uniformly formed in the side wall of the mounting side plate 61 on the inner side of the annular support 62, the mounting side plate 61 is suspended between the inner walls of the outer shell 1 through fixing rods on the circumferential side wall, the annular supports 62 at the two ends of the inner part of the outer shell 1 are attached to form a frame body to cover the rotor winding 4, supporting pieces 64 are fixedly connected to the inner walls of the ends of the annular supports 62 at uniform intervals, the supporting pieces 64 are fixedly connected with the rotor winding 4 to lift the rotor winding 4, the rotor winding 4 is suspended in an inner cavity formed by the annular supports 62 and the mounting side plate 61, and air flows wrap the rotor winding 4 between gaps of the annular supports 62 and the mounting side plate 61 to perform comprehensive contact heat dissipation while supporting the rotor winding 4.

The heat radiation fins 2 comprise heat conduction strips 201 penetrating through the outer walls of the two sides of the outer shell 1, one ends of the heat conduction strips 201 extend into the outer shell 1, the tail ends of the heat conduction strips are fixedly connected with arc heat conduction plates 202, the arc heat conduction plates 202 are attached to the side walls of the rotor windings 4 through gaps extending into the annular supports 62, the other ends of the heat conduction strips 201 extend to the outside of the outer shell 1, arc heat radiation fins 203 are fixedly connected to the outer walls of the tail ends of the heat conduction strips at equal intervals, the arc heat conduction plates 202 contact and absorb heat generated by the operation of the rotor windings 4, and the heat absorbed by the arc heat conduction plates 202 is directly emitted from the outside of the outer shell 1 after being conducted by the heat conduction strips 201 and the arc heat radiation fins 203, so that the heat radiation of the motor is assisted while the tightness of the motor is guaranteed.

Specifically, after the motor is electrified and started, the rotor winding 4 drives the rotor shaft 3 to rotate so as to drive the airflow fan 5 to rotate and blow the rotor winding 4, airflow is formed to impact the rotor winding 4 to be dispersed and then flows along the inner wall of the outer shell 1, finally, the airflow blows the deflection sealing plate 12 to deflect, so that hot airflow in the outer shell 1 leaks from the air outlet 11 and is discharged along the air outlet channel between the air guide cover 8 and the outer shell 1, the deflection sealing plate 12 deflects and simultaneously pulls the adjusting rope 15, the adjusting rope 15 is pulled by the deflection sealing plate 12 to bend, the adjusting rope 15 pulls the movable sealing plates 13 at the upper end and the lower end of the air guide cylinder 10 to be separated from each other by utilizing the reel 16, external airflow enters the air guide cylinder 10 through the air inlet channel between the protective cover 7 and the air guide cover 8, and cold airflow in the air guide cylinder 10 is forced to be sucked into the outer shell 1 after the hot airflow is discharged from the air outlet 11, the cold air flow is absorbed and flows along the gap between the protective frame 6 and the rotor winding 4, the rotor winding 4 is subjected to contact heat dissipation, the cold air flow absorbs heat and then is converged into the air flow formed by the rotation of the air flow fan 5 to be discharged, the rapid circulation flow of the air flow inside and outside the shell body 1 is realized, the guiding heat dissipation of the heat dissipation fins 2 is assisted, the inner and outer synchronous heat dissipation of parts such as the rotor winding 4 is formed, the rapid heat dissipation effect of the parts is fully ensured, after the rotor winding 4 is rotated, the inclined deflection sealing plate 12 loses the air flow to push the automatic deflection reset to seal the air outlet 11, the movable sealing plate 13 is automatically attached to the port of the closed guide cylinder 10 under the reset pushing of the elastic piece 14, the air outlet 11 and the guide cylinder 10 are simultaneously blocked by the protective cover 7, the sealing performance of the closed motor is fully ensured, and the problem that the air vent on the side wall of the shell body 1 is permeated by liquid to damage the motor is avoided.

As shown in fig. 7, in order to further optimize the deflection sealing plate 12, the deflection sealing plate 12 includes a hollow plate 121 and a sealing pad 122 fixedly connected to the circumferential side wall of the hollow plate 121, the hollow plate 121 is movably disposed between the inner walls of the two sides of the air outlet 11 through positioning shafts at two ends, a counterweight magnet 123 is mounted on the outer wall of one end of the hollow plate 121 in a fitting manner, and the counterweight magnet 123 is flush with the outer wall of the hollow plate 121 and is wrapped inside the sealing pad 122.

Specifically, the counterweight magnet 123 is located at the bottom of the hollow plate 121, after the air flow pushes the hollow plate 121 to deflect, the counterweight magnet 123 is located below the incline of the hollow plate 121, after the hollow plate 121 loses the air flow pushing, the counterweight magnet 123 forces the hollow plate 121 to deflect and reset automatically by using the weight of the counterweight magnet 123, so that the hollow plate 121 is extruded and clamped between the inner walls of the two sides of the air outlet 11 by means of the sealing gasket 122, the counterweight magnet 123 is pressed close to the bottom plate of the air outlet 11 by using magnetic force, and the air outlet 11 is blocked stably by the hollow plate 121, so that the tightness of the outer shell 1 is ensured.

As shown in fig. 1 and 8, for a further optimized embodiment of the protection cover 7, an installation groove 71 is formed on the inner wall of the port of the protection cover 7, the installation groove 71 is arranged on the outer side of the port of the air guide sleeve 8, an annular air cushion 72 is arranged inside the installation groove 71, a sealing film 73 is fixedly connected between the inner walls of the port of the installation groove 71, reaction boxes 74 are fixedly connected on the outer wall of the port of the protection cover 7 corresponding to the installation groove 71 at uniform intervals, and the reaction boxes 74 are communicated with the annular air cushion 72 through an air guide pipe 75.

Specifically, after the motor accidentally wades, the reaction box 74 on the outer wall of the port of the protective cover 7 contacts water to enter water, the medicine in the reaction box rapidly reacts with water to produce gas, the gas is rapidly introduced into the annular air cushion 72 through the air duct 75, the annular air cushion 72 is inflated to top crack the sealing film 73, the inflated annular air cushion 72 stretches out of the mounting groove 71 and is tightly attached to the outer wall of the outer shell 1, so that a gap between the port of the protective cover 7 and the outer shell 1 is blocked, buffer time is provided for a user to rescue wading motor, and the use safety of the motor is ensured.

In order to prevent the rotor shaft 3 from wearing, please refer to fig. 2, 4 and 9-13, the following preferred solutions are provided:

a positioning piece 17 is arranged on the inner wall of the outer shell 1 on one side of the exposed end of the rotor shaft 3, one end of the rotor shaft 3 is movably sleeved inside the positioning piece 17 and then extends to the outside of the outer shell 1, a lubricating piece 18 is fixedly connected to the inner wall of the outer shell 1 at the upper end of the positioning piece 17, a meniscus 19 is fixedly connected to the bottom plate of the outer shell 1 between the positioning piece 17 and the air flow fan 5, the meniscus 19 isolates falling lubricating oil and the rotor winding 4, an oil drain bolt 20 is movably penetrated through the bottom plate of the outer shell 1 between the inner wall of the outer shell 1 and the meniscus 19, and after the oil drain bolt 20 is pulled out, redundant lubricating oil which is separated and concentrated by the meniscus 19 can be discharged from a drain hole, so that the lubricating oil is prevented from accumulating in the outer shell 1.

The locating piece 17 includes fixed barrel 171 of fixed connection on shell body 1 inner wall and sets up in the spacing groove 172 at fixed barrel 171 top, spacing groove 172 intercommunication fixed barrel 171 inner chamber, fixed barrel 171 bottom both sides gomphosis is installed and is fixed magnet 173, fixed barrel 171 inside block is provided with sealing washer 174, fixed barrel 171 inside movable block in the sealing washer 174 outside installs locating bearing 175, rotor shaft 3 one end activity cup joints in locating bearing 175 and sealing washer 174 inner chamber rear end runs through shell body 1 end lateral wall and extends to its outside, fixedly connected with gag lever post 176 on the outer steel ring outer wall of locating bearing 175, the gag lever post 176 end extends to the outside of fixed barrel 171 through spacing groove 172.

The lubricating piece 18 comprises an oil storage box 181 fixedly connected to the inner wall of the end head of the outer shell 1 and an oil injection pipe 182 fixedly connected to the top of the oil storage box 181, the top end of the oil injection pipe 182 penetrates through the top plate of the outer shell 1 and extends to the outside of the top plate, an oil drop curved pipe 183 is fixedly connected to the bottom of the oil storage box 181, the tail end of the oil drop curved pipe 183 is attached to a gap between the inner steel ring and the outer steel ring of the positioning bearing 175 in a hanging mode, a movable shifting plate 184 is movably connected to the bottom of the oil storage box 181 on one side of the oil drop curved pipe 183, the movable shifting plate 184 is arranged corresponding to a limiting rod 176, the movable shifting plate 184 is connected with the bottom of the oil storage box 181 through a torsion spring 185, a positioning cavity 186 is formed in the bottom of the oil storage box 181 adjacent to the torsion spring 185, an adjusting rod 187 is movably arranged in the positioning cavity 186, the bottom of the adjusting rod 187 is movably connected with a movable connecting rod 188, and the tail end of the movable connecting rod 188 is movably connected to the side wall of the movable shifting plate 184.

The adjusting rod 187 comprises an L-shaped rod 1871 which is movably arranged through the top plate of the positioning cavity 186, the bottom of the L-shaped rod 1871 is connected with a movable connecting rod 188, a limiting plate 1872 is fixedly connected to the outer wall of the L-shaped rod 1871 in the positioning cavity 186, a buffer spring 1873 is wound on the outer wall of the L-shaped rod 1871 between the limiting plate 1872 and the top plate of the positioning cavity 186, the other end of the L-shaped rod 1871 extends into the oil storage box 181, a sealing plug 1874 is fixedly connected to the bottom of the tail end of the L-shaped rod 1871, and the lower end of the sealing plug 1874 is movably clamped in the top port of the oil drip curved pipe 183.

Specifically, the rotor shaft 3 extends to the outside of the outer shell 1 after passing through the positioning bearing 175, when the rotor shaft 3 pushes the inner rim of the positioning bearing 175 to rotate smoothly, the rotation of the inner rim of the positioning bearing 175 is insufficient to enable the outer rim to overcome the friction force between the outer rim and the inner wall of the fixed cylinder 171 and the adsorption force of the positioning magnetic block 173, the outer rim of the positioning bearing 175 is fixed in the fixed cylinder 171, conversely, when the inner rim and the outer rim of the positioning bearing 175 are blocked and unsmooth in sliding, the rotor shaft 3 pushes the outer rim to overcome the friction force between the outer rim and the inner wall of the fixed cylinder 171 and the adsorption force of the positioning magnetic block 173 by utilizing the inner rim of the positioning bearing 175, so that the inner rim and the outer rim of the positioning bearing 175 synchronously rotate along with the rotor shaft 3, the positioning bearing 175 pushes the limiting rod 176 to push the movable shifting plate 184 at the bottom of the oil storage box 181 when the outer rim of the positioning bearing 175, the movable shifting plate 184 squeezes the torsion spring 185 to deflect, and the movable connecting rod 188 is driven to deflect when the movable shifting plate 184 deflects, the L-shaped rod 1871 moves upwards to compress the buffer spring 1873, the sealing plug 1874 at the tail end of the L-shaped rod 1871 is pulled away from the top end port of the oil drip curved tube 183, at this time, the rotation of the outer steel ring is intercepted, the inner steel ring continues to rotate slowly, so that lubricating oil in the oil storage box 181 drips out from the tail end of the oil drip curved tube 183, when the inner steel ring and the outer steel ring of the positioning bearing 175 rotate, smearing and penetrating are carried out along gaps between the inner steel ring and the outer steel ring of the positioning bearing 175 along with the rotation of the inner steel ring, lubricating oil penetrating and filling the space between the inner steel ring and the outer steel ring of the positioning bearing 175, the inner steel ring and the outer steel ring of the positioning bearing 175 are restored to rotate smoothly, at this time, the friction force of the inner steel ring to the outer steel ring is insufficient to enable the outer steel ring to overcome the friction force between the inner wall of the outer steel ring and the fixed cylinder 171 and the adsorption force of the positioning magnetic block 173, the outer steel ring cannot rotate along with the inner steel ring, the movable shifting plate 184 pushes the limiting rod 176 to reset under the reset action of the torsion spring 185, so that automatic lubrication is realized when the inner steel ring and the inner steel ring of the positioning bearing 175 is not smoothly slid, is convenient and practical.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. The utility model provides a closed motor with inside and outside cooling structure, including shell body (1) and fixed connection radiator fin (2) on the outer wall of shell body (1) both sides, the activity is provided with rotor shaft (3) between the both ends inner wall of shell body (1), and the one end of rotor shaft (3) runs through and extends to shell body (1) outside, and its other end runs through rotor winding (4) setting, fixedly connected with air current fan (5) on rotor shaft (3) outer wall of rotor winding (4) one side, its characterized in that: the outside of rotor winding (4) is provided with protection frame (6), protection frame (6) is inside in shell body (1) through the dead lever suspension, protection frame (6) lifts rotor winding (4), through dead lever fixedly connected with protection casing (7) on the outer wall of shell body (1) one end, the inner wall fixedly connected with kuppe (8) of protection casing (7), protection casing (7) and kuppe (8) all overlap in shell body (1) end outside, be provided with annular dust screen (9) between the inner wall of protection casing (7) port department and shell body (1) outer wall, annular dust screen (9) laminating kuppe (8) port lateral wall setting, and shell body (1) end lateral wall middle part department fixedly connected with guide cylinder (10) that are linked together, the end of guide cylinder (10) runs through guide cylinder (8) end lateral wall and extends to its opposite side, set up gas outlet (11) on the shell body (1) lateral wall at both ends about guide cylinder (10), the both sides inner wall is movable between the air outlet (11) is provided with deflection (12), the outer wall of guide cylinder (10) upper and lower both ends is gone up and down the outer wall and is provided with seal plate (13) movable sealing plate (13) through the fixed connection of moving seal plate of moving respectively, the tail end of the elastic piece (14) is fixedly connected to the outer wall of the guide cylinder (10), the tail end of the movable sealing plate (13) is fixedly connected with an adjusting rope (15), and the tail end of the adjusting rope (15) is fixedly connected to the outer wall of the deflection sealing plate (12) after being wound in a wire groove of a winding wheel (16) on the inner wall of the guide cylinder (8).

2. A closed type motor with an internal and external cooling structure as set forth in claim 1, wherein: the protection casing (7) is arranged on the outer wall of the outer shell (1) far away from one side of the exposed end of the rotor shaft (3), the protection casing (7) and the air guide sleeve (8) are coaxially arranged with the outer shell (1), the air guide sleeve (8) divides a gap between the protection casing (7) and the outer shell (1) into an air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are respectively arranged corresponding to the guide sleeve (10) and the air outlet (11).

3. A closed type motor with an internal and external cooling structure as set forth in claim 2, wherein: when the deflection sealing plates (12) are vertically clamped in the air outlet (11), the movable sealing plates (13) at the upper end and the lower end of the guide cylinder (10) are mutually attached, and the sealing groove (131) on the outer wall of the end of one movable sealing plate (13) is movably clamped on the outer wall of the protruding part of the other end, at the moment, the adjusting rope (15) is tightened, and the elastic piece (14) keeps a normal diastole state.

4. A closed type motor with an internal and external cooling structure as set forth in claim 1, wherein: the deflection sealing plate (12) comprises a hollow plate (121) and a sealing pad (122) fixedly connected to the circumferential side wall of the hollow plate (121), the hollow plate (121) is movably arranged between the inner walls of the two sides of the air outlet (11) through positioning shafts at the two ends, a counterweight magnet (123) is embedded and mounted on the outer wall of one end of the hollow plate (121), and the counterweight magnet (123) is flush with the outer wall of the hollow plate (121) and is wrapped on the inner side of the sealing pad (122).

5. A closed type motor with an internal and external cooling structure as set forth in claim 1, wherein: the inner wall of the port of the protective cover (7) is provided with a mounting groove (71), the mounting groove (71) is arranged on the outer side of the port of the guide cover (8), an annular air cushion (72) is arranged inside the mounting groove (71), a sealing film (73) is fixedly connected between the inner walls of the port of the mounting groove (71), reaction boxes (74) are uniformly and fixedly connected to the outer wall of the port of the protective cover (7) corresponding to the mounting groove (71) at intervals, and the reaction boxes (74) are communicated with the annular air cushion (72) through air ducts (75).

6. A closed type motor with an internal and external cooling structure as set forth in claim 1, wherein: the protection frame (6) comprises a mounting side plate (61) and an annular support (62) fixedly connected to the outer wall of the mounting side plate (61), communication holes (63) are uniformly formed in the side wall of the mounting side plate (61) on the inner side of the annular support (62), the mounting side plate (61) is suspended between the inner walls of the outer shell (1) through fixing rods on the circumferential side wall, the annular supports (62) at the two ends of the inner part of the outer shell (1) are attached to form a frame body to cover the rotor winding (4), supporting pieces (64) are uniformly and fixedly connected to the inner walls of the end heads of the annular supports (62) at intervals, and the supporting pieces (64) are fixedly connected with the rotor winding (4) to lift.

7. A closed-type motor with an inside and outside cooling structure as set forth in claim 6, wherein: the heat radiation fins (2) comprise heat conduction strips (201) penetrating through the outer walls of the two sides of the outer shell body (1), one ends of the heat conduction strips (201) extend to the inside of the outer shell body (1), the tail ends of the heat conduction strips are fixedly connected with arc heat conduction plates (202), the arc heat conduction plates (202) are attached to the side walls of the rotor windings (4) by extending into gaps among the annular supports (62), the other ends of the heat conduction strips (201) extend to the outside of the outer shell body (1), and arc heat radiation fins (203) are uniformly and fixedly connected to the outer walls of the tail ends of the heat conduction strips at intervals.

8. A closed type motor with an internal and external cooling structure as set forth in claim 1, wherein: a locating piece (17) is arranged on the inner wall of an outer shell (1) on one side of the exposed end of a rotor shaft (3), one end of the rotor shaft (3) is movably sleeved on the inner side of the locating piece (17) and then extends to the outer part of the outer shell (1), a lubricating piece (18) is fixedly connected to the inner wall of the outer shell (1) on the upper end of the locating piece (17), a meniscus (19) is fixedly connected to the bottom plate of the outer shell (1) between the locating piece (17) and an airflow fan (5), and an oil drain bolt (20) is movably arranged on the bottom plate of the outer shell (1) between the inner wall of the outer shell (1) and the meniscus (19).

9. A closed type motor with an internal and external cooling structure as set forth in claim 8, wherein: the locating piece (17) include fixed section of thick bamboo (171) on fixed connection in shell body (1) inner wall and set up in spacing groove (172) at fixed section of thick bamboo (171) top, spacing groove (172) intercommunication fixed section of thick bamboo (171) inner chamber, fixed section of thick bamboo (171) bottom both sides gomphosis is installed and is fixed magnetic path (173), fixed section of thick bamboo (171) inside block is provided with sealing washer (174), fixed section of thick bamboo (171) inside activity block in the sealing washer (174) outside is installed and is fixed bearing (175), rotor shaft (3) one end activity cup joints and runs through shell body (1) end lateral wall and extends to its outside in rear end of sealing washer (174) inner chamber, fixedly connected with gag lever post (176) on the outer steel ring outer wall of locating bearing (175), gag lever post (176) end extends to fixed section of thick bamboo (171) outside through spacing groove (172).

10. A closed type motor with an internal and external cooling structure as set forth in claim 9, wherein: the lubricating piece (18) comprises an oil storage box (181) fixedly connected to the inner wall of the end head of the outer shell body (1) and an oil injection pipe (182) fixedly connected to the top of the oil storage box (181), the top end of the oil injection pipe (182) penetrates through the top plate of the outer shell body (1) and extends to the outside of the top plate, an oil drop curved pipe (183) is fixedly connected to the bottom of the oil storage box (181), the tail end of the oil drop curved pipe (183) is attached to a gap of an inner steel ring and an outer steel ring of the positioning bearing (175), the bottom of the oil storage box (181) on one side of the oil drop curved pipe (183) is movably connected with a movable shifting plate (184), the movable shifting plate (184) is arranged corresponding to a limiting rod (176), the movable shifting plate (184) is connected with the bottom of the oil storage box (181) through a torsion spring (185), a positioning cavity (186) is formed in the bottom of the oil storage box (181) on the adjacent position of the torsion spring (185), an adjusting rod (187) is movably arranged in the positioning cavity (186), the bottom of the adjusting rod (187) is movably connected with a movable connecting rod (188), and the tail end of the movable connecting rod (188) is movably connected to the side wall of the movable shifting plate (184).

The adjusting rod piece (187) comprises an L-shaped rod (1871) which is movably arranged through the top plate of the positioning cavity (186), the bottom of the L-shaped rod (1871) is connected with a movable connecting rod (188), a limiting disc (1872) is fixedly connected to the outer wall of the L-shaped rod (1871) in the positioning cavity (186), a buffer spring (1873) is wound on the outer wall of the L-shaped rod (1871) between the limiting disc (1872) and the top plate of the positioning cavity (186), the other end of the L-shaped rod (1871) extends into the oil storage box (181), a sealing plug (1874) is fixedly connected to the bottom of the tail end of the L-shaped rod, and the lower end of the sealing plug (1874) is movably clamped in the top port of the oil dropping curved tube (183).