CN116231946A

CN116231946A - Brushless direct current motor system

Info

Publication number: CN116231946A
Application number: CN202310512625.5A
Authority: CN
Inventors: 姚久刚; 陈启军; 张浩杰; 刘文波
Original assignee: Jiangsu Match Well Electrical Products Co ltd
Current assignee: Jiangsu Match Well Electrical Products Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-06-06
Anticipated expiration: 2043-05-09
Also published as: CN116231946B

Abstract

The invention relates to the technical field of motors, in particular to a brushless direct current motor system. This brushless DC motor system includes brushless motor organism, power take off the subassembly, the stationary flow base, two control assembly and vortex wave absorber, through setting up power take off the subassembly and vortex wave absorber, produce the cooling air current, cool down for the operation of brushless motor organism, application control assembly carries out the lubricating oil that is suitable according to brushless motor organism output simultaneously, the smooth performance of operation between vortex wave absorber and the extension axle has been strengthened, equipment operating efficiency and performance have been improved, and excessive lubrication and insufficient lubrication have been avoided, thereby friction loss and energy consumption have been reduced, equipment's life has been prolonged, and utilize control assembly and vortex wave absorber cooperation, when the ripple moment of torsion takes place at the brushless motor organism and produce vibrations, can carry out self-adaptation and shock attenuation, improve driven precision and stability, each part wearing and tearing volume between the device is reduced simultaneously.

Description

Brushless direct current motor system

Technical Field

The invention relates to the technical field of motors, in particular to a brushless direct current motor system.

Background

The brushless motor body consists of a motor main body and a driver, and is a typical electromechanical integrated product. A brushless dc motor is a synchronous motor, that is, the rotational speed of the motor rotor is affected by the speed of the rotating magnetic field of the motor stator and the number of poles of the rotor. Under the condition of fixed number of poles of the rotor, the rotating speed of the rotor can be changed by changing the frequency of the stator rotating magnetic field. The brushless dc motor is a mode of electronically controlling the synchronous motor, controlling the frequency of the stator rotating magnetic field, and transmitting the rotation speed of the motor rotor back to the control center for repeated correction so as to achieve the characteristic approaching to the dc motor.

However, abrasion and ripple torque are generated in the running process of the brushless motor body, so that the rotation frequency of the stator is damaged again after correction, the torque output by the motor is unstable, normal running of equipment is affected, extra energy loss is caused, and the generated friction and abrasion inside the motor shorten the service life of the motor.

Disclosure of Invention

Based on this, it is necessary to provide a brushless dc motor system to solve at least one technical problem in the background art.

The utility model provides a brushless DC motor system, including brushless motor organism, power take off module, the stationary flow base, two control assembly and vortex wave absorber, power take off module includes shaft coupling and extension axle, shaft coupling one end fixed mounting is in brushless motor organism output shaft, the shaft coupling other end fixed mounting is in the input of extension axle, the snap ring has been established to the evagination respectively to the perisporium of extension axle middle part and input, stationary flow base bottom surface fixed mounting is in brushless motor organism top surface, the inside cavity of stationary flow base is formed with the cavity, the rotation hole has all been seted up in the center of stationary flow base top surface and bottom surface, the rotation hole intercommunication cavity, the output shaft of brushless motor organism wears to locate in the rotation hole and the cavity of stationary flow base bottom surface, the shaft coupling is located cavity bottom, the output of extension axle wears to establish through the rotation hole and the external equipment fixed connection of stationary flow base top surface, two control assembly are installed in cavity diagonal angle department respectively, vortex wave absorber fixed mounting is in the snap ring of extension axle, and vortex wave absorber is located the cavity.

As a further improvement of the invention, four first ventilation holes are formed in the bottom surface of the steady flow base in a penetrating way, four second ventilation holes are formed in the top surface of the steady flow base in a penetrating way, the four second ventilation holes and the four first ventilation holes are distributed along the circumference array of the rotating hole, and the four second ventilation holes and the four first ventilation holes are communicated with the hollow cavity.

As a further improvement of the invention, two mutually symmetrical inclined plates are convexly arranged on the opposite angles of the bottom surface of the hollow cavity, and two side walls of the two inclined plates are respectively and fixedly arranged on the inner wall of the hollow cavity, so that a wind collecting cavity is formed between the inclined plates and the inner wall of the hollow cavity in a surrounding way, a first sliding groove is concavely formed in the middle of the bottom surface of the wind collecting cavity, a supporting plate is convexly arranged on the top of the side wall of the wind collecting cavity, a wind collecting gap is formed between the side wall of the supporting plate and the top surface of the inclined plate, and a sliding groove is formed in the middle of the supporting plate in a penetrating way.

As a further improvement of the invention, each control component comprises a control element and an oil delivery element, wherein the control element is arranged at the opposite angles of the wind gathering cavity and the middle part of the hollow cavity, the oil delivery element is arranged at the top of the hollow cavity and is opposite to the control element, and the control element is electrically connected with the oil delivery element.

As a further improvement of the invention, each control element comprises a wind shield, a slide rheostat and a connecting rod, wherein the bottom of the wind shield is slidably arranged in the first chute, the top of the wind shield penetrates through the sliding chute and is slidably arranged in the first chute, an inclined first abutting surface is concavely arranged at the corner part of one side of the top surface of the wind shield, which is far away from the center of the hollow cavity, the slide rheostat is fixedly arranged in the middle part of the inner wall of the hollow cavity, the slide rheostat is opposite to the wind shield, the top of the connecting rod is fixedly arranged in a sliding sheet of the slide rheostat, an inclined second abutting surface is concavely arranged at the corner part of one side of the bottom surface of the connecting rod, which is adjacent to the center of the hollow cavity, and the second abutting surface is abutted against the first abutting surface.

As a further improvement of the invention, each oil conveying element comprises an oil outlet device, a connecting pipeline and a connector, wherein the oil outlet device is fixedly arranged at the top of a hollow cavity and is opposite to the slide rheostat, the oil outlet device is electrically connected with the slide rheostat, the oil outlet end of the oil outlet device is fixedly connected with one end of the connecting pipeline, one end of the connecting pipeline is fixedly connected with the connector, the connector is semicircular, an arc-shaped first mounting surface is concavely arranged in the middle of the side wall of the connector, sealing rings are respectively arranged at the top and the bottom of the first mounting surface, the bottom of the sealing ring at the bottom of the first mounting surface abuts against the top surface of the clamping ring in the middle of the extension shaft, the first mounting surface is rotatably arranged at the top of the extension shaft, the first mounting surfaces of the two oil conveying elements are oppositely arranged, so that the two first mounting surfaces can be surrounded on the outer peripheral surface of the extension shaft, a connecting table is convexly arranged at the bottom of the connector, a conical surface is concavely arranged at the bottom of the outer peripheral surface of the connecting table, the oil outlet cavity is hollow formed in the connector, the oil outlet cavity is communicated with the inner pipeline of the connecting table, the middle of the connecting table is penetratingly provided with an oil outlet hole, and the oil outlet is communicated with the oil outlet cavity.

As a further improvement of the invention, the vortex wave absorber comprises a liquid guide part, a flow dividing part and a vortex fan blade part, wherein the bottom surface of the liquid guide part is fixedly arranged on the top surface of the flow dividing part, the liquid guide part and the flow dividing part are cylindrical, and the inner wall of the vortex fan blade part is fixedly arranged in the outer walls of the liquid guide part and the flow dividing part.

As a further improvement of the invention, the center of the top surface of the liquid guide part is concavely provided with a flow gathering hole, the peripheral wall of the top surface of the flow gathering hole is concavely provided with a second installation surface which is formed into a cone shape, the cone-shaped surface of the connector is rotatably installed in the second installation surface, the center of the flow gathering hole is penetratingly provided with a first installation hole, the two sides of the bottom surface of the flow gathering hole are penetratingly provided with first flow holes, the two first flow holes are symmetrically arranged, the bottom surface of the liquid guide part is provided with rubber blocks, the two rubber blocks are symmetrically arranged on one side of the two first flow holes far away from the center of the liquid guide part, and an inclined extrusion surface is concavely formed at the corner of one side of the bottom surface of each rubber block adjacent to the center of the liquid guide part.

As a further improvement of the invention, a second mounting hole is concavely arranged in the center of the top surface of the flow dividing part, the aperture of the second mounting hole is equal to that of the first mounting hole and communicated with each other, extrusion grooves are concavely arranged on two sides of the top surface of the flow dividing part, two extrusion grooves correspond to the two first flow holes, one end of each extrusion groove adjacent to the center of the flow dividing part is communicated with the first flow hole, a rubber block is positioned at the other end of the top of each extrusion groove, an extrusion ball is arranged on one side of each extrusion groove adjacent to the first flow hole, the diameter of each extrusion ball is equal to that of the first flow hole, the height and the width of each extrusion groove are equal to those of the extrusion ball, a second flow hole, a third flow hole and a fourth flow hole are concavely formed in sequence from the center of the flow dividing part to the outer side in the length direction of each extrusion groove, inclined first flow holes are formed on two sides of the bottom of the second mounting hole, the first flow holes are sequentially communicated with the second flow holes, the third flow holes and the fourth flow holes are communicated with each other, second communication holes are formed on two sides of the bottom of the second mounting hole, the second communication holes are positioned at the lower parts of the first flow holes, suction cavities are concavely arranged on the side walls of the second communication holes, and oil suction cotton is arranged in the suction cavities.

As a further improvement of the invention, the vortex fan blade part comprises a plurality of vortex fan blades which are distributed on the bottom of the liquid guide part and the peripheral wall of the flow dividing part along the circumferential array.

The beneficial effects of the invention are as follows:

1. through setting up power take off subassembly and vortex wave absorber and producing the cooling air current towards the brushless motor organism, the cooling air current carries out cooling for the operation of brushless motor organism through four first ventilation holes, and application control assembly output lubricating oil simultaneously provides whole lubrication, shock attenuation for the part of installing the extension axle of vortex wave absorber, has strengthened the smooth performance of operation between vortex wave absorber and the extension axle, has prolonged the life of equipment.

2. When the brushless motor body vibrates due to ripple torque, the stress balance state of the extrusion balls at the original extrusion groove is broken due to the participation of vibration force, so that the two extrusion balls roll to one side of instantaneous vibration, a third flow hole in the extrusion groove at one side is closed, and a fourth flow hole at the other side is opened, so that the weight at two sides of the split part is different, the gravity generated by the weight difference and the centrifugal force generated by the rotation of the vortex wave absorber offset the vibration generated by the brushless motor body, the self-adaptive vibration reduction effect is achieved, the vibration of equipment is reduced, the transmission precision and stability are improved, the abrasion loss of each part between the devices is reduced, the service life of the equipment is prolonged, and the maintenance cost of the equipment is reduced.

3. The device can change the lubrication quantity of the lubricating oil flowing into the extension shaft according to the output power of the brushless motor body, so that the brushless motor body can avoid excessive lubrication and insufficient lubrication, friction loss and energy consumption are reduced, the running efficiency and performance of the device are improved, the waste and pollution of the lubricating oil are reduced, excessive lubricating oil can be absorbed through oil absorption cotton, and the phenomenon that the lubricating oil flows out into a hollow cavity to pollute the environment of the device is avoided.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a side view of a brushless motor body according to an embodiment of the invention.

FIG. 3 is a cross-sectional view of a ballast bed in accordance with an embodiment of the present invention.

FIG. 4 is a cross-sectional view of an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a ballast base and two control components according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a connecting pipe and a connecting head according to an embodiment of the invention.

Fig. 7 is a schematic perspective view of an eddy current wave absorber according to an embodiment of the invention.

Fig. 8 is a cross-sectional view of a vortex breaker in accordance with an embodiment of the present invention.

In the figure: 10. a brushless motor body; 20. a power take-off assembly; 21. a coupling; 22. an extension shaft; 221. a clasp; 30. a steady flow base; 31. a hollow cavity; 311. a rotation hole; 312. a first vent; 313. a second vent hole; 314. an inclined plate; 315. a wind gathering cavity; 316. a first chute; 317. a support plate; 318. a sliding groove; 319. a wind gathering gap; 40. a control assembly; 41. a control element; 411. a wind deflector; 412. a slide rheostat; 413. a connecting rod; 414. a first abutting surface; 415. a second abutting surface; 42. an oil delivery element; 421. an oil outlet device; 422. a connecting pipeline; 423. a connector; 424. a connection station; 425. a conical surface; 426. an oil outlet cavity; 427. an oil outlet hole; 428. a first mounting surface; 429. a seal ring; 50. an eddy current wave absorber; 51. a liquid guiding part; 511. a coalescing aperture; 512. a second mounting surface; 513. a first mounting hole; 514. a first flow hole; 515. a rubber block; 516. extruding the surface; 52. a split flow section; 520. oil absorbing cotton; 521. a second mounting hole; 522. an extrusion groove; 523. extruding the balls; 524. a second flow hole; 525. a third flow hole; 526. a fourth flow hole; 527. a first communication hole; 528. a second communication hole; 529. a suction flow cavity; 53. a vortex fan blade section; 531. vortex fan blade.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of the present invention, it should be noted that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 8, a brushless dc motor system includes a brushless motor body 10, a power output assembly 20, a steady flow base 30, two control assemblies 40 and an eddy current absorber 50, the power output assembly 20 includes a coupler 21 and an extension shaft 22, one end of the coupler 21 is fixedly installed in an output shaft of the brushless motor body 10, the other end of the coupler 21 is fixedly installed in an input end of the extension shaft 22, a clamping ring 221 is formed in a middle portion of the extension shaft 22 and a peripheral wall of the input end respectively protruding outwards, a bottom surface of the steady flow base 30 is fixedly installed on a top surface of the brushless motor body 10, a hollow cavity 31 is formed in an interior of the steady flow base 30, rotation holes 311 are formed in centers of the top surface and the bottom surface of the steady flow base 30 in a penetrating manner, the rotation holes 311 are communicated with the hollow cavity 31, an output shaft of the brushless motor body 10 penetrates through the rotation holes 311 of the bottom surface of the steady flow base 30 and the hollow cavity 31, the coupler 21 is located at the bottom of the hollow cavity 31, an output end of the extension shaft 22 penetrates through the rotation holes 311 of the top surface of the steady flow base 30 and is fixedly connected with external equipment, the two control assemblies 40 are respectively installed at opposite angles of the hollow cavity 31, the eddy current absorber 50 is fixedly installed in the clamping ring 221, and the eddy current absorber 50 is located in the hollow cavity 31.

As shown in fig. 3, four first ventilation holes 312 are formed in the bottom surface of the steady flow base 30, four second ventilation holes 313 are formed in the top surface of the steady flow base 30, the four second ventilation holes 313 and the four first ventilation holes 312 are all distributed along the circumferential array of the rotation hole 311, and the four second ventilation holes 313 and the four first ventilation holes 312 are all communicated with the hollow cavity 31.

The bottom surface of the hollow cavity 31 is convexly provided with two mutually symmetrical inclined plates 314 on opposite angles, two side walls of the two inclined plates 314 are respectively fixedly arranged on the inner wall of the hollow cavity 31, a wind collecting cavity 315 is formed between the inclined plates 314 and the inner wall of the hollow cavity 31 in a surrounding mode, a first sliding groove 316 is concavely formed in the middle of the bottom surface of the wind collecting cavity 315, a supporting plate 317 is convexly arranged at the top of the side wall of the wind collecting cavity 315, a wind collecting gap 319 is formed between the side wall of the supporting plate 317 and the top surface of the inclined plate 314, and a sliding groove 318 penetrates through the middle of the supporting plate 317.

As shown in fig. 4-6, each control assembly 40 includes a control element 41 and an oil delivery element 42, the control element 41 is mounted at the diagonal positions of the central portion of the air collecting cavity 315 and the hollow cavity 31, the oil delivery element 42 is mounted at the top of the hollow cavity 31 and is disposed opposite to the control element 41, and the control element 41 is electrically connected with the oil delivery element 42.

Each oil delivery element 42 comprises an oil outlet 421, a connecting pipeline 422 and a connector 423, the oil outlet 421 is fixedly mounted at the top of the hollow cavity 31 and is opposite to the slide rheostat 412, the oil outlet 421 is electrically connected with the slide rheostat 412, the oil outlet end of the oil outlet 421 is fixedly connected with one end of the connecting pipeline 422, one end of the connecting pipeline 422 is fixedly connected with the connector 423, the connector 423 is semicircular, an arc-shaped first mounting surface 428 is concavely arranged in the middle of the side wall of the connector 423, sealing rings 429 are respectively arranged at the top and bottom of the first mounting surface 428, the bottom of the sealing ring 429 abuts against the top surface of the clamping ring 221 in the middle of the extension shaft 22, the first mounting surface 428 is rotatably mounted at the top of the extension shaft 22, the first mounting surfaces 428 of the two oil delivery elements 42 are oppositely arranged, so that the two first mounting surfaces 428 can be enclosed on the outer peripheral surface of the extension shaft 22, a connecting table 424 is convexly arranged at the bottom of the connector 423, a conical surface 425 is concavely arranged at the bottom of the outer peripheral surface of the connecting table 424, an oil outlet cavity 426 is hollow inside the connector 423, the oil cavity 426 is communicated with the inner pipeline of the connecting pipeline 422, the bottom of the connecting table 424, the bottom surface 427 is rotatably provided with an oil outlet 427, and the oil outlet 427 is rotatably arranged at the middle of the bottom of the connecting table 424.

As shown in fig. 4, 7 and 8, the vortex wave absorber 50 includes a liquid guiding portion 51, a flow dividing portion 52 and a vortex fan blade portion 53, wherein the bottom surface of the liquid guiding portion 51 is fixedly mounted on the top surface of the flow dividing portion 52, the liquid guiding portion 51 and the flow dividing portion 52 are cylindrical, and the inner wall of the vortex fan blade portion 53 is fixedly mounted in the outer walls of the liquid guiding portion 51 and the flow dividing portion 52.

The central recess in top surface of drain portion 51 is equipped with the drainage hole 511, the concave second installation face 512 that is formed with the taper in drainage hole 511 top surface circumference wall, the taper 425 of connector 423 rotationally installs in second installation face 512, the drainage hole 511 center runs through concave first installation hole 513 that is equipped with, the concave first circulation hole 514 that is equipped with is all run through to drainage hole 511 bottom surface both sides, and two first circulation holes 514 symmetry set up, drain portion 51 bottom surface all is provided with both sides and is provided with rubber piece 515, two rubber piece 515 symmetry set up in two first circulation holes 514 keep away from drain portion 51 center one side, every rubber piece 515 bottom surface is close to drain portion 51 center one side bight department concave being formed with the extrusion face 516 that inclines.

The top surface of the shunt part 52 is concavely provided with a second mounting hole 521, the aperture of the second mounting hole 521 is equal to that of the first mounting hole 513 and the two sides of the top surface of the shunt part 52 are concavely provided with extrusion grooves 522, the two extrusion grooves 522 and the two first flow holes 514 are mutually corresponding, one end of each extrusion groove 522 adjacent to the center of the shunt part 52 is mutually communicated with the first flow holes 514, a rubber block 515 is positioned at the other end of the top of each extrusion groove 522, one side of each extrusion groove 522 adjacent to the first flow hole 514 is provided with an extrusion ball 523, the diameter of each extrusion ball 523 is equal to that of the first flow hole 514, the height and the width of each extrusion groove 522 are equal to that of each extrusion ball 523, each extrusion groove 522 is concavely provided with a second flow hole 524, a third flow hole 525 and a fourth flow hole 526 in sequence from the center of the shunt part 52 to the outside in the length direction, the two sides of the bottom of the second mounting hole 521 are respectively provided with inclined first flow holes 527, the first flow holes 527 are respectively communicated with the second flow holes 524, the third flow holes 525 and the fourth flow holes 526, the two sides of the bottom of the second mounting hole 521 are respectively provided with a second communication hole 528, the second communication hole 528 is respectively, the second communication holes 528 are respectively arranged at the two sides of the bottom of the second mounting hole 521 are located at the second communication holes 528, the first communication holes 528 are located at the lower side of the first communication holes 528, the concave absorption cavities are each concave absorption cavities 520, and the absorption cavities are each absorption cavities is each absorption one is arranged.

In another embodiment, the extrusion groove 522 is concavely formed with a plurality of flow holes sequentially from the center to the outside of the split portion 52 along the length direction, and the plurality of flow holes are all communicated with the first communication hole 527.

The vortex fan blade 53 includes a plurality of vortex fan blades 531, and the plurality of vortex fan blades 531 are distributed along the circumferential array on the bottom of the liquid guiding portion 51 and the outer peripheral wall of the flow dividing portion 52.

For example, in one embodiment: when the brushless motor body 10 is started, the coupling 21 is caused to follow rotation, the extension shaft 22 is caused to follow rotation, the vortex wave absorber 50 is caused to rotate, the vortex blade part 53 is caused to rotate, and thereby cooling air flow towards the brushless motor body 10 is generated, and the cooling air flow cools down for the operation of the brushless motor body 10 through the four first ventilation holes 312.

Meanwhile, part of the airflow generated by the rotation of the vortex fan blade part 53 flows into the wind collecting gap 319 and enters the wind collecting cavity 315 through the acceleration of the wind collecting gap 319, the wind collecting plate 411 is impacted, the wind collecting plate 411 moves along the first sliding groove 316 and the sliding groove 318 to the side far away from the center of the hollow cavity 31, meanwhile, the second abutting surface 415 abuts against the first abutting surface 414, the connecting rod 413 moves upwards, the resistance of the sliding rheostat 412 is reduced, the oil outlet 421 is electrically connected with the sliding rheostat 412, when the resistance is smaller than a first threshold value, the oil outlet 421 is started and discharges lubricating oil, the discharged lubricating oil enters the collecting hole 511 through the connecting pipeline 422 and the connecting head 423, sealing rings 429 are respectively arranged at the top and the bottom of the first mounting surface 428, the lubricating oil part is accumulated in the collecting hole 511 and contacts with the output end of the extension shaft 22 along the collecting hole 511, vibration caused by the operation of external equipment is reduced and is transmitted into the brushless direct current motor system along the extension shaft 22, and accordingly the noise and the service life of the vibration system in the brushless direct current motor system are reduced.

Meanwhile, the lubricant oil introduced into the converging hole 511 is continuously discharged along with the oil discharger 421, when the space of the converging hole 511 is occupied by the lubricant oil, the rest of the lubricant oil enters the first communicating hole 514, enters the extrusion groove 522 along the first communicating hole 514, and pushes against the extrusion ball 523, so that the extrusion ball 523 extrudes the rubber block 515 and moves towards one end of the rubber block 515 along the length direction of the extrusion groove 522, the second communicating hole 524 and the third communicating hole 525 are sequentially opened, the lubricant oil enters the first communicating hole 527 along the second communicating hole 524 and the third communicating hole 525, flows to the input end of the extension shaft 22 along the first communicating hole 527, and lubricates and dampens the input end of the extension shaft 22.

The brushless direct current motor system inevitably encounters a transverse vibration condition during operation due to the operation of the motor and the operation of external equipment, so that gas in a gap between the vortex absorber 50 and the extension shaft 22 is pumped into an output end of the extension shaft 22 along with the transverse vibration and enters into the first flow hole 514 along with the flow of the lubricating oil to carry out circulating flow, and the inflow lubricating oil quantity is reduced due to the fact that the gas quantity entering from one side with severe vibration is large, the mass of one side with severe vibration is lighter, the gravity on the other side is used as the reverse counteracting force of the vibration force, the damping effect is further deepened, meanwhile, the reduction of the gas in the gap enables the middle of the extension shaft 22 to form a negative pressure space, and at the moment, the lubricating oil entering into the input end of the extension shaft 22 moves towards the output end along the length direction of the extension shaft 22 along with the first flow hole 527, so that the whole lubricating and damping are provided for the part of the extension shaft 22 provided with the vortex absorber 50, the smooth performance of the operation between the vortex absorber 50 and the extension shaft 22 is enhanced, and the service life of the equipment is prolonged.

For example, in one embodiment: when the brushless motor body 10 generates ripple torque to generate vibration, the stress balance state of the extrusion balls 523 at the original extrusion groove 522 is broken due to the participation of vibration force, so that the two extrusion balls 523 roll to one side of instantaneous vibration, the third flow through hole 525 in the extrusion groove 522 at one side is closed, the fourth flow through hole 526 at the other side is opened, the weights at two sides of the flow dividing part 52 are different, the gravity generated by the weight difference and the centrifugal force generated by the rotation of the vortex wave absorber 50 offset the vibration generated by the brushless motor body 10, the self-adaptive vibration absorbing effect is achieved, the vibration of equipment is reduced, the transmission precision and stability are improved, the abrasion of all parts among the devices is reduced, the service life of the equipment is prolonged, and the maintenance cost of the equipment is reduced.

For example, in one embodiment: when the output power of the brushless motor body 10 is increased, the rotation speed of the extension shaft 22 is increased, the rotation speed of the vortex wave absorber 50 is increased, the flow speed of cooling air is increased, the wind shield 411 is enabled to move along the first sliding groove 316 and the sliding groove 318 to the side far away from the center of the hollow cavity 31, the connecting rod 413 is enabled to move upwards, the resistance of the sliding rheostat 412 is further reduced, the flow speed of lubricating oil in the connecting pipeline 422 is increased, the extrusion ball 523 is enabled to move towards one end of the rubber block 515 further, the fourth flow hole 526 is enabled to be opened, the flow of lubricating oil entering the input end of the extension shaft 22 is enabled to be further increased, and the lubrication and shock absorption effects are further improved, namely, the device can change the lubrication amount of the lubricating oil flowing into the extension shaft 22 according to the output power of the brushless motor body 10, so that the brushless motor body 10 can avoid excessive lubrication and insufficient lubrication, friction loss and energy consumption are reduced, the running efficiency and performance of the device are improved, and the waste and pollution of the lubricating oil are reduced.

When the brushless motor body 10 instantaneously sprays excessive lubricant at the input end of the extension shaft 22, so that the lubricant flows to one side of the brushless motor body 10 along the extension shaft 22, the excessive lubricant flows into the suction cavity 529 along the second communication hole 528 and is absorbed by the oil absorbing cotton 520, and is prevented from flowing out into the hollow cavity 31, thereby polluting the equipment environment.

The installation process comprises the following steps: the bottom surface of the steady flow base 30 is fixedly arranged on the top surface of the brushless motor body 10, the output shaft of the brushless motor body 10 is penetrated into the rotating hole 311 and the hollow cavity 31 on the bottom surface of the steady flow base 30, one end of the coupler 21 is fixedly arranged in the output shaft of the brushless motor body 10, the other end of the coupler 21 is fixedly arranged in the input end of the extension shaft 22, the coupler 21 is positioned at the bottom of the hollow cavity 31, the output end of the extension shaft 22 is penetrated through the rotating hole 311 on the top surface of the steady flow base 30 and fixedly connected with external equipment, the bottom of the wind shield 411 is slidingly arranged in the first chute 316, the top of the wind shield 411 is penetrated through the sliding groove 318 and slidingly arranged therein, the sliding rheostat 412 is fixedly arranged in the middle part of the inner wall of the hollow cavity 31, the sliding rheostat 412 is arranged opposite to the wind shield 411, the top of the connecting rod 413 is fixedly arranged in the sliding sheet of the sliding rheostat 412, the second abutting surface 415 is abutted against the first abutting surface 414, the oil outlet 421 is fixedly mounted on the top of the hollow cavity 31 and is opposite to the slide rheostat 412, the oil outlet 421 is electrically connected with the slide rheostat 412, the oil outlet end of the oil outlet 421 is fixedly connected with one end of the connecting pipeline 422, one end of the connecting pipeline 422 is fixedly connected with the connecting head 423, the conical surface 425 of the connecting head 423 is rotatably mounted in the second mounting surface 512, the bottom surface of the liquid guiding part 51 is fixedly mounted on the top surface of the flow dividing part 52, the second mounting hole 521 is mutually communicated with the first mounting hole 513, one end of the pressing groove 522 adjacent to the center of the flow dividing part 52 is mutually communicated with the first flow through hole 514, the plurality of vortex blades 531 are distributed on the bottom of the liquid guiding part 51 and the peripheral wall of the flow dividing part 52 along a circumferential array, the vortex breaker 50 is fixedly mounted in the collar 221 of the extension shaft 22 and the vortex breaker 50 is located within the hollow cavity 31.

The beneficial effects are that: 1. through setting up power take off subassembly 20 and vortex wave absorber 50 and producing the cooling air current towards brushless motor organism 10, the cooling air current carries out the cooling for the operation of brushless motor organism 10 through four first ventilation holes 312, utilizes control unit 40 output lubricating oil simultaneously, provides whole lubrication, shock attenuation for the part of the extension axle 22 of installing vortex wave absorber 50, has strengthened the smooth performance of operation between vortex wave absorber 50 and the extension axle 22, has prolonged the life of equipment.

2. When the brushless motor body 10 generates ripple torque to generate vibration, the stress balance state of the extrusion balls 523 at the original extrusion groove 522 is broken due to the participation of vibration force, so that the two extrusion balls 523 roll to one side of instantaneous vibration, the third flow through hole 525 in the extrusion groove 522 at one side is closed, the fourth flow through hole 526 at the other side is opened, the weights at two sides of the flow dividing part 52 are different, the gravity generated by the weight difference and the centrifugal force generated by the rotation of the vortex wave absorber 50 offset the vibration generated by the brushless motor body 10, the self-adaptive vibration absorbing effect is achieved, the vibration of equipment is reduced, the transmission precision and stability are improved, the abrasion of all parts among the devices is reduced, the service life of the equipment is prolonged, and the maintenance cost of the equipment is reduced.

3. The device can change the lubrication quantity of the lubricating oil flowing into the extension shaft 22 according to the output power of the brushless motor body 10, so that the brushless motor body 10 can avoid excessive lubrication and insufficient lubrication, thereby reducing friction loss and energy consumption, improving the running efficiency and performance of the device, reducing the waste and pollution of the lubricating oil, absorbing excessive lubricating oil through the oil absorbing cotton 520, avoiding flowing out into the hollow cavity 31 and polluting the environment of the device.

The above embodiments represent only a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A brushless dc motor system, characterized by: comprises a brushless motor body (10), a power output assembly (20), a steady flow base (30), two control assemblies (40) and an eddy current wave absorber (50), the power output assembly (20) comprises a coupler (21) and an extension shaft (22), one end of the coupler (21) is fixedly arranged in an output shaft of the brushless motor body (10), the other end of the coupler (21) is fixedly arranged in an input end of the extension shaft (22), a clamping ring (221) is respectively outwards convexly arranged in the middle part of the extension shaft (22) and the peripheral wall of the input end, the bottom surface of the steady flow base (30) is fixedly arranged on the top surface of the brushless motor body (10), a hollow cavity (31) is formed in the interior of the steady flow base (30), the centers of the top surface and the bottom surface of the steady flow base (30) are respectively penetrated and provided with a rotating hole (311), the rotating hole (311) is communicated with the hollow cavity (31), the output shaft of the brushless motor body (10) is penetrated in the rotating hole (311) and the hollow cavity (31) of the bottom surface of the base (30), the coupler (21) is positioned at the bottom of the hollow cavity (31), the output end of the extension shaft (22) is penetrated through the top surface of the base (30) and is fixedly connected with two external devices (40) respectively, the vortex wave absorber (50) is fixedly arranged in a clamping ring (221) of the extension shaft (22), and the vortex wave absorber (50) is positioned in the hollow cavity (31).

2. The brushless dc motor system of claim 1, wherein: four first ventilation holes (312) are formed in the bottom surface of the steady flow base (30) in a penetrating mode, four second ventilation holes (313) are formed in the top surface of the steady flow base (30) in a penetrating mode, the four second ventilation holes (313) and the four first ventilation holes (312) are distributed along the circumferential array of the rotating holes (311), and the four second ventilation holes (313) and the four first ventilation holes (312) are communicated with the hollow cavity (31).

3. The brushless dc motor system of claim 2, wherein: the utility model discloses a hollow cavity (31) bottom surface epirelief is equipped with two mutual symmetrical hang plates (314) on opposite angles, and two hang plates (314) both sides wall fixed mounting respectively in hollow cavity (31) inner wall for encircle between hang plate (314) and hollow cavity (31) inner wall and be formed with wind gathering cavity (315), wind gathering cavity (315) bottom surface middle part is concave to be established and is formed with first spout (316), wind gathering cavity (315) lateral wall top protruding is equipped with backup pad (317), and be formed with wind gathering gap (319) between backup pad (317) lateral wall and hang plate (314) top surface, sliding tray (318) have been seted up in the middle part of backup pad (317).

4. A brushless dc motor system as claimed in claim 3, wherein: each control assembly (40) comprises a control element (41) and an oil conveying element (42), the control element (41) is arranged at the opposite angles of the central part of the wind gathering cavity (315) and the central part of the hollow cavity (31), the oil conveying element (42) is arranged at the top of the hollow cavity (31) and is opposite to the control element (41), and the control element (41) is electrically connected with the oil conveying element (42).

5. The brushless dc motor system of claim 4, wherein: each control element (41) comprises a wind shield (411), a slide rheostat (412) and a connecting rod (413), the bottom of the wind shield (411) is slidably installed in the first sliding groove (316), the top of the wind shield (411) penetrates through the sliding groove (318) and is slidably installed therein, a first inclined supporting surface (414) is concavely formed at the corner of one side, far away from the center of the hollow cavity (31), of the top surface of the wind shield (411), the slide rheostat (412) is fixedly installed in the middle of the inner wall of the hollow cavity (31), the slide rheostat (412) is arranged opposite to the wind shield (411), the top of the connecting rod (413) is fixedly installed in the sliding piece of the slide rheostat (412), a second inclined supporting surface (415) is concavely formed at the corner of one side, close to the center of the hollow cavity (31), and the second supporting surface (415) is supported on the first supporting surface (414).

6. The brushless dc motor system of claim 5, wherein: each oil conveying element (42) comprises an oil outlet device (421), a connecting pipeline (422) and a connector (423), the oil outlet device (421) is fixedly arranged at the top of a hollow cavity (31) and is opposite to the sliding rheostat (412), the oil outlet device (421) is electrically connected with the sliding rheostat (412), the oil outlet ends of the oil outlet devices (421) are fixedly connected with one end of the connecting pipeline (422), one end of the connecting pipeline (422) is fixedly connected with the connector (423), the connector (423) is semicircular, an arc-shaped first mounting surface (428) is concavely arranged in the middle of the side wall of the connector (423), sealing rings (429) are respectively arranged at the top and the bottom of the first mounting surface (428), the bottom of the sealing rings (429) at the bottom of the first mounting surface (428) is propped against the top of a clamping ring (221) in the middle of an extension shaft (22), the first mounting surfaces (428) are rotatably arranged at the top of the extension shaft (22), the first mounting surfaces (428) are opposite to each other, the two first mounting surfaces (428) can be enclosed on the outer peripheral surfaces of the extension shaft (22), the connector (424) are convexly arranged at the bottom surfaces of the connection shaft (424), the inner peripheral surfaces (423) are concavely arranged at the bottom of the connector (423), the hollow cavity (426) is formed, the oil outlet cavity (426) is communicated with an inner pipeline of the connecting pipeline (422), an oil outlet (427) is formed in the middle of the bottom surface of the connecting table (424) in a penetrating mode, and the oil outlet (427) is communicated with the oil outlet cavity (426).

7. The brushless dc motor system of claim 6, wherein: the vortex wave absorber (50) comprises a liquid guide part (51), a flow dividing part (52) and a vortex fan blade part (53), wherein the bottom surface of the liquid guide part (51) is fixedly arranged on the top surface of the flow dividing part (52), the liquid guide part (51) and the flow dividing part (52) are cylindrical, and the inner wall of the vortex fan blade part (53) is fixedly arranged in the outer walls of the liquid guide part (51) and the flow dividing part (52).

8. The brushless dc motor system of claim 7, wherein: the central concave of top surface of drain portion (51) is equipped with and gathers flow hole (511), gather flow hole (511) top surface week wall concave set up and be formed with tapered second installation face (512), the tapered face (425) of connector (423) rotationally install in second installation face (512), gather flow hole (511) center run through concave be equipped with first mounting hole (513), gather flow hole (511) bottom surface both sides all run through concave be equipped with first circulation hole (514), and two first circulation hole (514) symmetry set up, drain portion (51) bottom surface is provided with both sides all and is provided with rubber piece (515), two rubber piece (515) symmetry set up in two first circulation holes (514) keep away from drain portion (51) center one side, every rubber piece (515) bottom surface is close to drain portion (51) center one side corner department concave set up and is formed with extrusion face (516) of slope.

9. The brushless dc motor system of claim 8, wherein: the center of the top surface of the flow dividing part (52) is concavely provided with a second mounting hole (521), the aperture of the second mounting hole (521) is equal to that of the first mounting hole (513) and communicated with each other, both sides of the top surface of the flow dividing part (52) are concavely provided with extrusion grooves (522), the two extrusion grooves (522) correspond to the two first flow holes (514) each other, one end of the extrusion groove (522) adjacent to the center of the flow dividing part (52) is communicated with the first flow hole (514) each other, a rubber block (515) is positioned at the other end of the top of the extrusion groove (522), one side of the extrusion groove (522) adjacent to the first flow hole (514) is provided with extrusion balls (523), the diameter of the extrusion balls (523) is equal to that of the first flow hole (514), the height and the width of the extrusion grooves (522) are equal to that of the extrusion balls (523), each extrusion groove (522) is concavely provided with a second flow through hole (524), a third flow through hole (524) and a fourth flow through hole (526) in sequence from the center of the flow dividing part (52) to the outside along the length direction, both sides of the bottom of the second mounting hole (521) are provided with inclined second flow through holes (527), second through holes 528) are formed at both sides of the bottom of the second flow through hole (528) in sequence, the second communication hole (528) is positioned at the lower part of the first communication hole (527), the side wall of the second communication hole (528) is concavely provided with a suction flow cavity (529), and the suction flow cavity (529) is internally provided with oil suction cotton (520).

10. The brushless dc motor system of claim 9, wherein: the vortex fan blade part (53) comprises a plurality of vortex fan blades (531), and the plurality of vortex fan blades (531) are distributed on the bottom of the liquid guide part (51) and the peripheral wall of the flow dividing part (52) along a circumferential array.