CN115296485B

CN115296485B - Generating motor with overheat protection function

Info

Publication number: CN115296485B
Application number: CN202211224029.9A
Authority: CN
Inventors: 秦金玉; 王伟东; 恽维明
Original assignee: Sanlinglu Changzhou Electric Co ltd
Current assignee: Sanlinglu Changzhou Electric Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-01-03
Anticipated expiration: 2042-10-09
Also published as: CN115296485A

Abstract

The invention discloses a power generation motor with an overheat protection function, and belongs to the technical field of generators. The generator cooling device comprises a shell, wherein a coil is arranged in the shell, a front end cover and a rear end cover are respectively arranged at two ends of the shell, bearings are arranged at positions, close to the front end cover and the rear end cover, of the shell, rotor shafts are arranged on inner rings of the two bearings, a cooling pipe network and a distribution box are arranged on the outer side of the shell, the cooling pipe network is connected with an oil cooling assembly, a circulating assembly is further arranged on the outer portion of the shell, the circulating assembly is connected with the inner portion of the shell through a pipeline, a temperature sensor is arranged on the shell and used for detecting the temperature of the generator, the oil cooling assembly and the circulating assembly cool the generator, the circulating assembly utilizes air flow to cool the generator and simultaneously carry out sealed lubrication on the generator, water vapor is prevented from entering the generator to corrode the generator, and the service life of the generator is prolonged.

Description

Generating motor with overheat protection function

Technical Field

The invention relates to the technical field of generators, in particular to a generating motor with an overheat protection function.

Background

The generator is a mechanical device capable of converting mechanical energy into electric energy, and is indispensable in the environments of industrial power generation, production and manufacturing, and emergency rescue, although the working principle of the generator is based on the electromagnetic induction law, the structural form of the generator is slightly different according to different power generation powers, for a small-sized and small-power generator, a rotor shaft is a coil, a stator is a permanent magnet, current in the rotor shaft is led out through an electric brush, the rotor shaft of the generator can obtain the maximum kinetic energy to generate power, and for a medium-sized and large-sized power generator, the rotor shaft is the permanent magnet, and the stator is the coil so as to lead large current conveniently.

Resistance heat generated by the generator cannot be avoided, the larger the power of the generator is, the larger the heat productivity of the generator is, the more unstable the magnetic flux change of the permanent magnet can be caused when the generator is overheated, and the power generation efficiency is seriously influenced, so that the generator is often internally provided with a heat dissipation device for preventing the motor from being overheated, the heat dissipation device utilizes the flow of gas to cool the generator, but dust is easily accumulated in the generator, the lubricating effect of the rotating connection part of the rotor shaft is influenced, water vapor in the air enters the generator, further erosion is caused to the generator, and the service life of the generator is shortened.

Disclosure of Invention

The present invention is directed to a generator motor with overheat protection function, so as to solve the problems in the background art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a generating motor with overheat protection function, includes the shell, inside coil that is provided with of shell, front end housing, rear end cap are installed respectively at the both ends of shell, and the position department that the shell is close to front end housing and rear end cap is provided with the bearing, two circle the interior epaxial rotor shaft of installing of bearing, it is a pair of permanent magnet, at least a pair of to rotate at least on the rotor shaft the permanent magnet sets up relatively, the shell outside is provided with cooling pipe network and block terminal, the cooling pipe network is connected with the cold subassembly of oil, the outside of shell still is provided with the circulation subassembly, the circulation subassembly passes through the internal connection of pipeline with the shell, the cold subassembly of oil and circulation subassembly cool down the generator.

Further, every to the different magnetic pole of permanent magnet is close to each other, every be provided with the arc on the permanent magnet, seted up the curved surface groove on every arc, the inside coaxial inner core that is provided with of rotor shaft, the rotor shaft is stretched out to the one end of inner core, installs the extension spring between the other end of inner core and the rotor shaft, rotates on the inner core and is provided with a ring, be provided with the hook with the same number of permanent magnet on the ring, every hook and curved surface groove sliding connection rotate as the rotor shaft of external device drive generator, the magnetic induction line cutting coil of permanent magnet, produce induced electromotive force in the coil, the generator begins the electricity generation, and the both ends of ring and the position department of inner core contact all are provided with a thrust ball bearing, and the inner core remains motionless when the rotor shaft is rotatory, and all hooks of ring are along with the permanent magnet rotation, drive the ring through thrust ball bearing and slide simultaneously during inner core axial displacement.

Furthermore, a cavity is formed in the rear end cover, a sliding block is slidably mounted in the cavity, the sliding block is connected to one end, extending out of the rotor shaft, of the inner core, a U-shaped oil pipe is connected to one end, close to the rear end cover, of the cooling pipe network, and one end of the U-shaped oil pipe is communicated with the cavity.

Further, the oil cooling subassembly includes the oil tank, advances oil pipe, oil cooler, the one end of advancing oil pipe is connected in the one end that the cooling pipe network is close to the front end housing, advances oil pipe's the other end and is connected with the oil tank, advances oil pipe's middle part and is provided with the oil pump, the outside of shell is provided with temperature sensor, temperature sensor and oil pump and control system circuit connection, the inside packing of oil cooler has the cotton wool, is connected with back oil pipe between oil cooler's one end and the oil tank, and when the coil temperature rose, the generator began to generate heat, and the temperature sensor temperature rose, starts the oil pump through control system and begins work, utilizes advancing oil pipe and takes out the oil in the oil tank and carry the cooling pipe network, and the heat is taken away through the generator outside to the cooling pipe network, and the oil pump oil mass that the high temperature was taken out is more, and the cooling pipe network can absorb heat to the shell more fast, and the oil after the heat absorption enters into the rear end housing through U-shaped oil pipe.

Furthermore, a throttle pipe and an unloading pipe are arranged at the bottom of the cavity, the throttle pipe is close to the shell, a throttle valve is arranged inside the throttle pipe, the slide block plugs the unloading pipe, one ends of the throttle pipe and the unloading pipe are both connected with a connecting oil pipe, one end of the connecting oil pipe is connected with an oil cooler, oil after heat absorption flows into the connecting oil pipe through the throttle pipe and then flows into the oil cooler for heat dissipation, filter cotton adsorbs and filters impurities in the oil, the filtered and cooled oil returns to the oil tank through an oil return pipe to complete flow circulation, and when small-flow oil passes through the throttle valve, the oil amount in the cavity cannot be increased; the oil in the cavity is increased when the flow of the oil is increased, the oil pushes the sliding block to slide, the sliding block pulls the inner core to move, a plurality of hooks on the inner core slide in the curved surface groove, all the permanent magnets deflect, an included angle is formed between a magnetic induction line of the permanent magnets and the coil, induced electromotive force in the coil is reduced, the heat productivity of the coil is reduced, the unloading pipe is opened when the sliding block moves to the end, the oil which cannot flow out in time flows into a connecting oil pipe from the unloading pipe until the temperature of the generator is reduced, the oil pumping amount of the oil pump is reduced, the sliding block is not extruded by the oil, the inner core resets under the action of a tension spring, all the permanent magnets return to the right, the generator works normally, the heating degree of the motor is detected by using a temperature sensor, the generator is cooled by using oil cooling, the sliding block is pushed to move according to the size of the heat dissipation oil amount while being cooled, the sliding block drives the inner core to deflect the permanent magnets, the size of induced electromotive force in the coil is further reduced, the heat generated by the coil due to work caused by induced current, and the generator is cooled without stopping.

Furthermore, the circulation assembly comprises a wind exhaust wheel, an air inlet pipe and an air supply pipe, the wind exhaust wheel is arranged on the rotor shaft, the cross section of the position of the shell corresponding to the wind exhaust wheel is oval, the space above the wind exhaust wheel is larger than the space below the wind exhaust wheel, the air inlet pipe is positioned at the position of the shell close to the front end cover, the air supply pipe and the air inlet pipe are communicated with the inside of the shell, and one end of the air supply pipe is arranged at the position of the shell corresponding to the position above the wind exhaust wheel.

Further, the circulation component comprises a fan, the fan is installed below the oil cooler, a fan blade and a turbine are arranged inside the fan in a rotating mode, the fan blade and the turbine are coaxially installed, the fan blade is located above the turbine, one-way valves are arranged on the air supply pipe and the air inlet pipe, a filter screen and lime powder are further arranged inside the air inlet pipe, one end of the air supply pipe is connected to the position, corresponding to the turbine, of the fan, the rotor shaft rotates and meanwhile drives the exhaust wheel to rotate, air inside the shell flows into the air supply pipe under the action of the exhaust wheel, the one-way valves on the air supply pipe are opened, air pressure inside the shell is reduced, the one-way valves on the air supply pipe are opened, air outside the air inlet pipe is wetted through the lime powder and then enters the generator, the air inside the shell is cooled through the air flow, the air flow in the air supply pipe enters the fan and pushes the turbine to rotate, the turbine drives the fan blade to rotate, air blowing and heat dissipation of the oil cooler is achieved, the effect of heat dissipation of cooling oil cooler is achieved, and the heat dissipation effect of the oil cooler is enhanced.

Furthermore, an annular groove is formed in the front end cover, a floating sealing ring is arranged in the annular groove, an oil hole and a lubricating groove are formed in the floating sealing ring, the floating sealing ring is in contact with the rotor shaft, a sealing ring is further arranged between the floating sealing ring and the front end cover, and a pressure oil pipe is connected below the annular groove.

The circulating assembly further comprises a lubricating oil bin and an air outlet pipe, the oil pressing pipe is communicated with the lubricating oil bin, one end of the air outlet pipe is connected to the lubricating oil bin, the other end of the air outlet pipe is connected to the position, corresponding to a turbine, of the fan, three valves are arranged on the lubricating oil bin, the three valves are evenly distributed in a circular shape, magnetic stripes are arranged at the positions, in contact with each other, of every two valves, the magnetic stripes in mutual contact attract each other, air flows out of the fan and enters the lubricating oil bin through the air outlet pipe, the lubricating oil bin is opened without deformation due to the suction force of the magnetic stripes on the three valves, the air pressure in the lubricating oil bin rises, lubricating oil is stored in the lubricating oil bin, the lubricating oil is pressed into an annular groove through the oil pressing pipe under the action of the air pressure and then reaches the lubricating groove through an oil hole, after the lubricating oil in the lubricating groove is filled up, the rotor shaft rotates along with the rotation of the rotor shaft, an oil film is formed by the rotor shaft and the floating sealing ring, and the lubricating oil film is extruded in the floating sealing effect when the lubricating oil in the floating sealing ring is extruded after the air pressure in the lubricating oil bin is continuously raised.

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

1. utilize temperature sensor to detect the degree of generating heat of motor, utilize oil cold to cool down the generator, in the cooling, promote the slider according to the size of heat dissipation oil mass and remove, the slider drives inner core deflection permanent magnet, further plays the size that reduces the induced electromotive force in the coil, reduces the coil because of the heat that induced-current work produced for the generator realizes cooling refrigerated function under the state of not shutting down.

2. Utilize the rotor shaft to drive the exhaust wheel rotatory, press the inside gas pressure of shell to the blast pipe in, outside air passes through lime powder and absorbs moisture and enters into the generator inside after the filter screen filters, utilize the air current to cool off the shell is inside, the air current in the blast pipe gets into the fan, it blows the heat dissipation to drive the flabellum rotation to the oil cooler, not only reached and carried out radiating effect to the generator inside, still play to go the cooling oil and carry out radiating effect, strengthen the radiating effect of oil cooler.

3. The lubricating oil bin is pressurized by utilizing cooled gas, lubricating oil is pressed into the lubricating groove, after the lubricating oil in the lubricating groove is filled, an oil film is formed between the rotor shaft and the floating sealing ring along with the rotation of the rotor shaft, so that the lubricating and sealing effects are achieved, after the air pressure in the lubricating oil bin is continuously increased, the three valves are opened to exhaust outwards, the lubricating oil in the oil pressing pipe stops flowing, and the three valves press the lubricating oil in the floating sealing ring to assist the generation of the oil film when the generator is started every time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic diagram of the structure of the generator portion of the present invention;

FIG. 3 is a schematic view of the internal structure of the generator of the present invention;

FIG. 4 is an enlarged view of a portion of the area A of FIG. 3 in accordance with the present invention;

FIG. 5 is a cross-sectional view of the generator of the present invention;

FIG. 6 is a rear view of the generator of the present invention;

FIG. 7 is a schematic view of the internal structure of the rotor shaft of the present invention;

FIG. 8 is a schematic cross-sectional view of a rotor shaft according to the present invention;

FIG. 9 is a schematic view of the oil cooler portion of the present invention;

in the figure: 1. a housing; 201. a front end cap; 202. a rear end cap; 3. a coil; 4. a rotor shaft; 5. a bearing; 6. a temperature sensor; 7. cooling the pipe network; 8. a distribution box; 9. a floating seal ring; 10. a wind discharging wheel; 111. an inner core; 112. a hook; 12. a permanent magnet; 13. a tension spring; 14. a slider; 15. an oil inlet pipe; 161. a U-shaped oil pipe; 162. connecting the oil pipe; 163. an oil return pipe; 17. an oil cooler; 18. an oil tank; 19. an oil pump; 20. an air supply pipe; 21. an air outlet pipe; 221. a fan; 222. a fan blade; 223. a steam turbine; 23. a lubricating oil bin; 24. a valve; 25. pressing a oil pipe; 26. an air inlet pipe; 27. an unloading pipe; 28. a throttle tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 to 9, the present invention provides a technical solution: the utility model provides a generator motor with overheat protection function, which comprises a

housing

1, 1 inside coil 3 that is provided with of shell, front end housing 201 is installed respectively at the both ends of shell 1, rear end housing 202, the position department that shell 1 is close to front end housing 201 and rear end housing 202 is provided with bearing 5, circle in two bearing 5 and install rotor shaft 4, it installs three pairs of permanent magnet 12 to rotate on the rotor shaft 4, three pairs of permanent magnet 12 set up relatively, every pair of permanent magnet 12 dissimilar magnetic pole is close to each other, the shell 1 outside is provided with cooling pipe network 7 and block terminal 8, cooling pipe network 7 is connected with the cold subassembly of oil, the outside of shell 1 still is provided with the circulation subassembly, the circulation subassembly passes through the internal connection of pipeline with shell 1, cold subassembly of oil and circulation subassembly are cooled down to the generator.

Each permanent magnet 12 is provided with an arc plate, each arc plate is provided with a curved groove, an inner core 111 is coaxially arranged inside the rotor shaft 4, one end of the inner core 111 extends out of the rotor shaft 4, a tension spring 13 is installed between the other end of the inner core 111 and the rotor shaft 4, a ring is rotatably arranged on the inner core 111, hooks 112 with the same number as the permanent magnets 12 are arranged on the ring, each hook 112 is connected with the curved groove in a sliding mode, when an external device drives the rotor shaft 4 of the generator to rotate, a magnetic induction line of the permanent magnet 12 cuts the coil 3, induced electromotive force is generated in the coil 3, the generator starts to generate electricity, a thrust ball bearing is arranged at the position where the two ends of the ring are in contact with the inner core 111, the inner core 111 keeps still when the rotor shaft 4 rotates, the ring and all the hooks 112 rotate along with the permanent magnet 12, and the inner core 111 slides together by being driven by the thrust ball bearing when moving axially.

The rear end cover 202 is internally provided with a cavity, a sliding block 14 is slidably mounted in the cavity, the sliding block 14 is connected to one end, extending out of the rotor shaft 4, of the inner core 111, one end, close to the rear end cover 202, of the cooling pipe network 7 is connected with a U-shaped oil pipe 161, one end of the U-shaped oil pipe 161 is communicated with the cavity, the oil cooling assembly comprises an oil tank 18, an oil inlet pipe 15 and an oil cooler 17, one end of the oil inlet pipe 15 is connected to one end, close to the front end cover 201, of the cooling pipe network 7, the other end of the oil inlet pipe 15 is connected with the oil tank 18, an oil pump 19 is arranged in the middle of the oil inlet pipe 15, a temperature sensor 6 is arranged outside the shell 1, the temperature sensor 6 and the oil pump 19 are connected with a control system circuit, filter cotton is filled inside the oil cooler 17, an oil return pipe 163 is connected between one end of the oil cooler 17 and the oil tank 18, when the temperature of the coil 3 rises, the generator starts to generate heat, the temperature of the temperature sensor 6 rises, the oil pump 19 starts to work through the control system, the oil pump 15 pumps oil pump to pump into the cooling pipe network 7, the cooling pipe network 7 extracts heat from the heat, the heat absorbing pipe network when the temperature of the coil 19 rises, the cooling pipe network 7 can absorb more quickly, and the heat, and the heat absorbing oil of the shell 1, and the oil pipe network 202 enters the U-shaped oil pump.

The bottom of the cavity is provided with a throttle pipe 28 and an unloading pipe 27, the throttle pipe 28 is close to the shell 1, a throttle valve is arranged inside the throttle pipe 28, the slide block 14 blocks the unloading pipe 27, one end of each of the throttle pipe 28 and the unloading pipe 27 is connected with a connecting oil pipe 162, one end of each connecting oil pipe 162 is connected and communicated with the oil cooler 17, oil after heat absorption flows into the connecting oil pipe 162 through the throttle pipe 28 and then flows into the oil cooler 17 for heat dissipation, impurities in the oil are adsorbed and filtered by filter cotton, the filtered and cooled oil returns to the oil tank 18 through an oil return pipe 163 to complete flow circulation, and when small-flow oil passes through the throttle valve, the oil in the cavity cannot be increased; when the flow of oil is increased, the oil in the cavity is increased, the oil pushes the sliding block 14 to slide, the sliding block 14 pulls the inner core 111 to move, the hooks 112 on the inner core 111 slide in the curved groove, so that all the permanent magnets 12 deflect, an included angle is formed between a magnetic induction line of the permanent magnets 12 and the coil 3, the induced electromotive force in the coil 3 is reduced, the heat productivity of the coil 3 is reduced, the unloading pipe 27 is opened when the sliding block 14 moves to the end, the oil which cannot flow out in time flows into the connecting oil pipe 162 from the unloading pipe 27 until the temperature of the generator is reduced, the oil pumping amount of the oil pump 19 is reduced, the sliding block 14 is not extruded by the oil, the inner core 111 resets under the action of the tension spring 13, all the permanent magnets 12 return to the normal state, the generator normally works, the heating degree of the motor is detected by using the temperature sensor, the generator is cooled by using the oil cooling, the sliding block 14 is pushed to move according to the size of the heat dissipation oil amount while the cooling is reduced, the sliding block 14 drives the inner core 111 to deflect the permanent magnets 12, the coil 3, the size of the induced electromotive force is further reduced, the induced electromotive force generated by reducing the heat induced current in the coil 3, and the cooling function of the generator without stopping of the cooling machine is realized.

The circulating assembly comprises an exhaust wheel 10, an air inlet pipe 26 and an air supply pipe 20, the exhaust wheel 10 is arranged on the rotor shaft 4, the section of the position, corresponding to the exhaust wheel 10, of the shell 1 is oval, the space above the exhaust wheel 10 is larger than the space below the exhaust wheel 10, the air inlet pipe 26 is arranged at the position, close to the front end cover 201, of the shell 1, the air supply pipe 20 and the air inlet pipe 26 are both communicated with the inside of the shell 1, one end of the air supply pipe 20 is arranged at the position, corresponding to the position above the exhaust wheel 10, of the shell 1, the circulating assembly comprises a fan 221, the fan 221 is arranged below the oil cooler 17, a fan blade 222 and a turbine 223 are rotatably arranged in the fan 221, the fan blade 222 and the turbine 223 are coaxially arranged, the fan blade 222 is arranged above the turbine 223, check valves are arranged on the air supply pipe 20 and the air inlet pipe 26, a filter screen and lime powder are further arranged in the air inlet pipe 26, one end of the air supply pipe 20 is connected to a position, corresponding to the turbine 223, of the fan 221, the rotor shaft 4 drives the exhaust wheel 10 to rotate while rotating, air inside the shell 1 flows towards the air supply pipe 20 under the effect of the exhaust wheel 10, a check valve on the air supply pipe 20 is opened, air pressure inside the shell 1 is reduced, the check valve on the air inlet pipe 26 is opened, outside air is absorbed through lime powder and enters the generator after being filtered by a filter screen, the inside of the shell 1 is cooled through air flow, the air flow in the air supply pipe 20 enters the fan 221 and pushes the turbine 223 to rotate, the turbine 223 drives the fan blades 222 to rotate, air blowing and heat dissipation are performed on the oil cooler 17, the effect of performing heat dissipation on the inside of the generator is achieved, the effect of performing heat dissipation through removing of cooling oil is also achieved, and the heat dissipation effect of the oil cooler 17 is enhanced.

An annular groove is formed in the front end cover 201, a floating sealing ring 9 is arranged in the annular groove, an oil hole and a lubricating groove are formed in the floating sealing ring 9, the floating sealing ring 9 is in contact with the rotor shaft 4, a sealing ring is further arranged between the floating sealing ring 9 and the front end cover 201, a pressure oil pipe 25 is connected below the annular groove, the circulating component further comprises a lubricating oil bin 23 and an air outlet pipe 21, the pressure oil pipe 25 is communicated with the lubricating oil bin 23, one end of the air outlet pipe 21 is connected to the lubricating oil bin 23, the other end of the air outlet pipe 21 is connected to a position, corresponding to a turbine 223, of the fan 221, three valves 24 are arranged on the lubricating oil bin 23, the three valves 24 are circularly and uniformly distributed, magnetic stripes are arranged at the positions, in which the three valves 24 are in contact with each other, and the magnetic stripes in which the two valves are in contact with each other attract each other, the air flows out from the fan 221 and enters the lubricating oil bin 23 through the air outlet pipe 21, the lubricating oil bin 23 is opened without deformation among the valves 24 due to the suction force of magnetic strips on the three valves 24, the air pressure in the lubricating oil bin 23 rises, lubricating oil is stored in the lubricating oil bin 23, the lubricating oil is pressed into the annular groove through the oil pressing pipe 25 under the action of the air pressure and then reaches the lubricating groove through the oil hole, after the lubricating oil in the lubricating groove is filled, the rotor shaft 4 and the floating sealing ring 9 form an oil film along with the rotation of the rotor shaft 4 to play a role in lubrication and sealing, after the air pressure in the lubricating oil bin 23 continues rising, the three valves 24 are opened to exhaust outwards, the lubricating oil in the oil pressing pipe 25 stops flowing, and the three valves 24 press the lubricating oil into the floating sealing ring 9 to assist the generation of the oil film when the generator is started each time.

The working principle of the invention is as follows: when the power generation motor is used, an external device drives a rotor shaft 4 of a generator to rotate, a magnetic induction line of a permanent magnet 12 cuts a coil 3, induced electromotive force is generated in the coil 3, the generator starts to generate power, a thrust ball bearing is arranged at the position where two ends of a ring are in contact with an inner core, the inner core 111 is kept still when the rotor shaft 4 rotates, the ring and all hooks 112 rotate along with the permanent magnet 12, the inner core 111 drives the ring to slide through the thrust ball bearing when moving axially, when the temperature of the coil 3 rises, the generator starts to generate heat, the temperature sensor 6 rises, an oil pump 19 is started to work through a control system, oil in an oil tank 18 is extracted through an oil inlet pipe 15 and conveyed to a cooling pipe network 7, the cooling pipe network 7 takes heat away through the outside of the generator, the cooling pipe network 7 can absorb heat to a shell 1 more quickly as the temperature is higher, the oil amount extracted by the oil pump 19 is higher, and the oil after heat absorption enters a rear end cover 202 through a U-shaped oil pipe 161.

The oil after heat absorption flows into the connecting oil pipe 162 through the throttle pipe 28 and then flows into the oil cooler 17 for heat dissipation, the filter cotton adsorbs and filters impurities in the oil, the filtered and cooled oil returns to the oil tank 18 through the oil return pipe 163 to complete flow circulation, and when the small-flow oil passes through the throttle valve, the oil amount in the cavity is not increased; when the flow of oil is increased, the oil in the cavity is increased, the oil pushes the sliding block 14 to slide, the sliding block 14 pulls the inner core 111 to move, the hooks 112 on the inner core 111 slide in the curved groove, so that all the permanent magnets 12 deflect, the magnetic induction lines of the permanent magnets 12 form an included angle with the coil 3, the induced electromotive force in the coil 3 is reduced, the heat productivity of the coil 3 is reduced, the unloading pipe 27 is opened when the sliding block 14 moves to the end, the oil which cannot flow out in time flows into the connecting oil pipe 162 from the unloading pipe 27 until the temperature of the generator is reduced, the oil pumping amount of the oil pump 19 is reduced, the sliding block 14 is not extruded by the oil, the inner core 111 is reset under the action of the tension spring 13, all the permanent magnets 12 return to the right, and the generator works normally.

The rotor shaft 4 drives the wind exhaust wheel 10 to rotate while rotating, the air inside the housing 1 flows towards the air supply pipe 20 under the action of the wind exhaust wheel 10, the check valve on the air supply pipe 20 is opened, the air pressure inside the housing 1 is reduced, the check valve on the air inlet pipe 26 is opened, the outside air is absorbed by lime powder, is filtered by the filter screen and enters the generator, the inside of the housing 1 is cooled by the air flow, the air flow in the air supply pipe 20 enters the fan 221 and pushes the turbine 223 to rotate, the turbine 223 drives the fan blades 222 to rotate, and the oil cooler 17 is blown to dissipate heat, so that the effect of dissipating heat inside the generator is achieved, the effect of removing cooling oil to dissipate heat is also achieved, and the heat dissipation effect of the oil cooler 17 is enhanced, the air flows out from the fan 221 and enters the lubricating oil bin 23 through the air outlet pipe 21, the lubricating oil bin 23 is opened without deformation among the valves 24 due to the suction force of magnetic strips on the three valves 24, the air pressure in the lubricating oil bin 23 rises, lubricating oil is stored in the lubricating oil bin 23, the lubricating oil is pressed into the annular groove through the oil pressing pipe 25 under the action of the air pressure and then reaches the lubricating groove through the oil hole, after the lubricating oil in the lubricating groove is filled, the rotor shaft 4 and the floating sealing ring 9 form an oil film along with the rotation of the rotor shaft 4 to play a role in lubrication and sealing, after the air pressure in the lubricating oil bin 23 continues rising, the three valves 24 are opened to exhaust outwards, the lubricating oil in the oil pressing pipe 25 stops flowing, and the three valves 24 press the lubricating oil into the floating sealing ring 9 to assist the generation of the oil film when the generator is started each time.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a generating motor with overheat protection function which characterized in that: the cooling device comprises a shell (1), wherein a coil (3) is arranged inside the shell (1), a front end cover (201) and a rear end cover (202) are respectively installed at two ends of the shell (1), bearings (5) are arranged at positions, close to the front end cover (201) and the rear end cover (202), of the shell (1), rotor shafts (4) are installed on inner rings of the two bearings (5), at least one pair of permanent magnets (12) are rotatably installed on each rotor shaft (4), at least one pair of permanent magnets (12) are oppositely arranged, a cooling pipe network (7) and a distribution box (8) are arranged on the outer side of the shell (1), the cooling pipe network (7) is connected with an oil cooling assembly, a circulating assembly is further arranged outside the shell (1), the circulating assembly is connected with the inside of the shell (1) through a pipeline, and the oil cooling assembly and the circulating assembly cool a generator;

every is close to each other to permanent magnet (12) dissimilar magnetic pole, every be provided with the arc on permanent magnet (12), seted up the curved surface groove on every arc, the inside coaxial inner core (111) that is provided with of rotor shaft (4), rotor shaft (4) are stretched out to the one end of inner core (111), install extension spring (13) between the other end of inner core (111) and rotor shaft (4), rotate on inner core (111) and be provided with a ring, be provided with hook (112) with permanent magnet (12) the same number on the ring, every hook (112) and curved surface groove sliding connection.

2. A power generating motor with an overheat protection function according to claim 1, characterized in that: the cavity has been seted up to the inside of rear end cap (202), slidable mounting has slider (14) in the cavity, the one end that rotor shaft (4) are stretched out in inner core (111) is connected in slider (14), the one end that cooling pipe net (7) are close to rear end cap (202) is connected with U-shaped oil pipe (161), the one end and the cavity intercommunication of U-shaped oil pipe (161).

3. A power generating motor with an overheat protection function according to claim 2, characterized in that: the oil cooling assembly comprises an oil tank (18), an oil inlet pipe (15) and an oil cooler (17), one end of the oil inlet pipe (15) is connected to one end, close to the front end cover (201), of the cooling pipe network (7), the other end of the oil inlet pipe (15) is connected with the oil tank (18), an oil pump (19) is arranged in the middle of the oil inlet pipe (15), a temperature sensor (6) is arranged outside the shell (1), the temperature sensor (6) and the oil pump (19) are connected with a control system circuit, filter cotton is filled inside the oil cooler (17), and an oil return pipe (163) is connected between one end of the oil cooler (17) and the oil tank (18).

4. A power generating motor with an overheat protection function according to claim 3, characterized in that: the bottom of the cavity is provided with a throttle pipe (28) and an unloading pipe (27), the throttle pipe (28) is close to the shell (1), a throttle valve is arranged inside the throttle pipe (28), the unloading pipe (27) is plugged by the sliding block (14), one ends of the throttle pipe (28) and the unloading pipe (27) are connected with a connecting oil pipe (162), and one end of the connecting oil pipe (162) is connected with the oil cooler (17) in a communicating manner.

5. A power generating motor with an overheat protection function according to claim 1, characterized in that: circulation subassembly is including arranging wind wheel (10), intake pipe (26), air feed pipe (20), it sets up on rotor shaft (4) to arrange wind wheel (10), the cross-section that shell (1) corresponds the position department of arranging wind wheel (10) is oval, the space of arranging wind wheel (10) top is greater than the space of arranging wind wheel (10) below, intake pipe (26) are located shell (1) and are close to the position department of front end housing (201), air feed pipe (20) and intake pipe (26) all communicate with shell (1) is inside, and the one end setting of air feed pipe (20) corresponds the position department of arranging wind wheel (10) top in shell (1).

6. A power generating motor with an overheat protection function according to claim 5, wherein: the circulation subassembly includes fan (221), fan (221) are installed in the below of oil cooler (17), and the inside rotation of fan (221) is provided with flabellum (222), turbine (223), flabellum (222) and turbine (223) coaxial arrangement, flabellum (222) are located the top of turbine (223), all be provided with the check valve on air feed pipe (20) and intake pipe (26), the inside of intake pipe (26) still is provided with filter screen and lime powder, the one end of air feed pipe (20) is connected in the position department that fan (221) corresponds turbine (223).

7. A power generating motor with an overheat protection function according to claim 6, characterized in that: the utility model discloses a rotor shaft, including front end cover (201), front end cover (201) has seted up the annular groove in the inside, the inside in annular groove is provided with floating seal ring (9), oilhole and lubrication groove have been seted up to floating seal ring (9) inside, and floating seal ring (9) contact with rotor shaft (4), still are provided with the sealing washer between floating seal ring (9) and front end cover (201), and the below in annular groove is connected with presses oil pipe (25).

8. A power generating motor with an overheat protection function according to claim 7, characterized in that: the circulation subassembly still includes lubricating oil storehouse (23), outlet duct (21), press oil pipe (25) to be linked together with lubricating oil storehouse (23), the one end of outlet duct (21) is connected on lubricating oil storehouse (23), and the position department that fan (221) corresponds turbine (223) is connected to the other end of outlet duct (21), be provided with three valve (24) on lubricating oil storehouse (23), it is three valve (24) are circular equipartition, and the position department of three valve (24) two liang of mutual contact is provided with the magnetic stripe, two liang of mutual contact the magnetic stripe inter attraction.