Miniature motor protection device and protection method

Abstract

The invention relates to the technical field of motor protection, and discloses a micro motor protection device which is characterized by comprising a protection shell, the protection shell is of a cylindrical barrel structure and is coaxially and fixedly connected to the end of a motor, a transmission mechanism is arranged at the end of an output shaft of the motor and comprises a first transmission assembly, and a second transmission assembly is arranged at the end of the output shaft of the motor; the first transmission assembly comprises a first connecting shaft, a first mounting disc, a second mounting disc, a first guide column, a second guide column and a connecting block, the first connecting shaft and an output shaft of the motor are coaxially arranged, a key groove is formed in the circumference of one end of the connecting shaft, the first mounting disc is arranged at the end of the first connecting shaft in a sleeving mode, and when the motor works normally, the output shaft of the motor drives the first connecting shaft to rotate; and then a second connecting shaft is driven to rotate, so that fan blades are driven to rotate, air enters the protective shell through an air inlet of the protective shell, then enters a cleaning ring through an air inlet pipe and a communicating pipe, and finally is exhausted through an exhaust hole, so that air blowing and heat dissipation are carried out on the motor shell.

Description

Technical Field

[0001] The present invention relates to the technical field of motor protection, and in particular to a micro motor protection device and a protection method. Background Art

[0002] Micro motors are small in size and capacity, with output power generally below several hundred watts, and have special requirements for use, performance and environmental conditions. Micro motors will generate a lot of heat under long-term heavy loads, causing the micro motors themselves to be in a high temperature environment for a long time, resulting in a reduced life of the micro motor. When the motor works under load for a long time, if the voltage is not stable enough, it is easy to cause the motor to get stuck and burn out. When the motor is exposed to the outside for a long time, it is easy to generate a lot of dust on the motor, which also affects the heat dissipation of the motor. For this reason, a micro motor protection device is needed. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, an object of the present invention is to provide a micro motor protection device and a protection method.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0005] A micro motor protection device, comprising: The protective shell is a cylindrical structure. The protective shell is coaxially fixedly connected to the end of the motor. A transmission mechanism is arranged at the end of the output shaft of the motor. The transmission mechanism includes a transmission component 1. The transmission component 1 includes a connecting shaft 1, a mounting plate 1, a mounting plate 2, a guide column 1, a guide column 2, and a connecting block. The connecting shaft 1 is coaxially arranged with the output shaft of the motor. A keyway is provided on the circumference of the end of the connecting shaft 1. The mounting plate is set at the end of the connecting shaft 1. The mounting plate 1 is annular. The inner ring surface of the mounting plate 1 is provided with a keyway matching the keyway at the end of the connecting shaft 1. A clamping block and a mounting plate 2 are coaxially fixedly connected to the output shaft end of the motor. A receiving groove is provided on the surface of the mounting plate 2. There are multiple receiving grooves and they are evenly arranged around. One end of the guide column 2 is provided with an external step, and the other end passes through the surface of the mounting plate 1 and is fixedly connected to the connecting block. There are multiple guide columns 2 and they correspond one to one with the receiving grooves. The connecting block matches the receiving groove, and the surface of the connecting block in contact with the edge of the receiving groove is arranged obliquely. A spring 1 is sleeved on the guide column 2, and one end of the spring 1 contacts the connecting block, and the other end contacts the surface of the mounting plate 1.

[0006] As a further improvement of the present technical solution, a shift assembly is arranged below the connecting shaft one, and the shift assembly includes a push plate, a screw rod, a guide rod, a connecting sleeve one, and a connecting sleeve two. The connecting sleeve one and the connecting sleeve two are horizontally fixed to the ends of the motor housing, and the push plate is located below the mounting disk one. A slot is provided on the top of the push plate, and the bottom of the mounting disk one is stuck in the slot. One end of the screw rod is coaxially fixedly connected with a handle, and the other end of the screw rod passes through the push plate and extends into the connecting sleeve one. The guide rod is arranged parallel to one side of the screw rod, and the guide rod extends into the connecting sleeve two. Turning the handle can adjust the distance between the mounting disk one and the mounting disk two, thereby adjusting the transmission force between the mounting disk two and the mounting disk one.

[0007] As a further improvement of the present technical solution, an air inlet is provided on the wall of the protective shell, a cleaning ring is sleeved on the motor housing, the cleaning ring is a hollow ring body, an exhaust hole is provided on the inner ring surface of the cleaning ring, a connecting pipe is connected to the cleaning ring, one end of the connecting pipe is connected to the cleaning ring, and the other end passes through the protective shell and extends into the protective shell, the end of the connecting pipe is connected to the air inlet pipe, and a cooling mechanism is provided on the air inlet pipe, the cooling mechanism includes a support seat and a transmission component 2, the support seat is arranged in the protective shell, the transmission component 2 includes a connecting shaft 2, a bevel gear 1, a rotating shaft 1, a bevel gear 2, a support plate, a bevel gear 3, a fan blade, a bevel gear 3, and the air inlet pipe A fixing plate is vertically fixed on the wall, connecting shaft two is rotatably installed on the fixing plate, connecting shaft two is parallel to connecting shaft one, a bevel gear is coaxially fixedly sleeved on the end of connecting shaft two, rotating shaft one is vertically rotatably arranged in the air inlet pipe, and the two ends of rotating shaft one extend out of the air inlet pipe, bevel gear two is coaxially fixedly sleeved on the top of rotating shaft one, bevel gear two is meshed with bevel gear one, a support plate is fixedly arranged in the air inlet pipe, fan blades are rotatably installed on the support plate, bevel gear three is coaxially fixedly sleeved on the central shaft end of the fan blade, bevel gear three is coaxially fixedly sleeved on rotating shaft one, bevel gear three is meshed with bevel gear three, and connecting shaft two and connecting shaft one are driven by a belt.

[0008] As a further improvement of the present technical solution, a transmission component three is arranged on the top of the support seat, and the transmission component three includes a rotating shaft two, a spline sleeve, a limit plate, a limit rod one, and a limit rod two. The rotating shaft two is vertically rotatably arranged on the top of the support seat, and the rotating shaft two is coaxially arranged with the rotating shaft. A key groove is opened on the circumference of the bottom end of the rotating shaft one, and a key groove is opened on the circumference of the top end of the rotating shaft two. The spline sleeve is sleeved on the bottom end of the rotating shaft one and the top end of the rotating shaft two. The limit plate is sleeved on the bottom end of the rotating shaft one, the limit rod one is vertically fixed on the bottom end of the rotating shaft one, the limit rod two is vertically fixed on the wall of the rotating shaft one and away from the limit rod one, and a spring two is sleeved on the rotating shaft one, one end of the spring two is in contact with the limit rod two, and the other end is in contact with the limit plate, and a trigger assembly is arranged on one side of the connecting shaft two.

[0009] As a further improvement of the present technical solution, the trigger assembly includes a connecting ring, a centrifugal telescopic rod, a clamping plate, a connecting plate 2, and a trigger plate. The connecting ring is coaxially fixedly sleeved at the end of the connecting shaft 2, the centrifugal telescopic rod is arranged on the annular surface of the connecting ring, and multiple centrifugal telescopic rods are arranged evenly around. The clamping plate is fixedly connected to the limit plate, and the trigger plate is located above the connecting ring. The trigger plate and the clamping plate are connected by the connecting plate 2. In the initial state, the spline sleeve matches the keyway of the rotating shaft 2.

[0010] As a further improvement of the present technical solution, a collar is sleeved on the connecting shaft one, a connecting rod is fixedly connected to the collar, a support plate is vertically fixedly arranged in the protective shell, the connecting rod and the support plate are connected through a guide column three, one end of the guide column three is fixedly connected to the connecting rod, the other end passes through the surface of the support plate and is provided with an external step, two guide columns three are provided and are arranged in parallel, a spring three is sleeved on the guide column three, one end of the spring three is in contact with the connecting rod, and the other end is in contact with the surface of the support plate, a rack is fixedly arranged on the end of the connecting rod, a gear is coaxially fixedly sleeved on the rotating shaft two, the gear is meshed with the rack, and the end of the rack is connected to the cleaning ring through a connecting plate one.

[0011] As a further improvement of the present technical solution, a cooling mechanism is provided on the wall of the motor housing, and the cooling mechanism includes a reciprocating component 1, a reciprocating component 2, and a cooling component. The reciprocating component 1 includes an exhaust duct 1, a connecting shell, a dial, an exhaust duct 2, and a rocker arm 1. The connecting shell is connected to the cleaning ring through the exhaust duct 1. The connecting shell is a rectangular structure. The dial is rotatably installed in the connecting shell. The center axis of the dial passes through the wall of the connecting shell. One end of the rocker arm 1 is fixedly connected to the end of the center axis of the dial. The other end of the rocker arm 1 is horizontally fixedly connected with a pressure column. The pressure column is parallel to the center axis of the dial. The exhaust duct 2 is connected to the wall of the connecting shell, and the reciprocating component 2 is arranged on the wall of the connecting shell.

[0012] As a further improvement of the present technical solution, the reciprocating component 2 includes a bearing plate, a rotating shaft 3, a coil spring, a rocker rod 2, a rocker rod 3, and a stop rod. The bearing plate is fixedly arranged on the wall portion connected to the shell, the rotating shaft 3 is rotatably arranged on the plate surface of the bearing plate, the rotating shaft 3 is parallel to the pressure column, the rocker rod 2 and the rocker rod 3 are fixedly arranged at the end of the rotating shaft 3, the rocker rod 2 and the rocker rod 3 are close to the rocker rod 1, a coil spring is sleeved between the rotating shaft 3 and the plate surface of the bearing plate, the stop rod is vertically fixed on the plate surface of the bearing plate, and the stop rod is above the rocker rod 2 and close to the rotating shaft 3.

[0013] As a further improvement of the present technical solution, the cooling assembly includes a cooling ring, a slide plate, a fixed rod, and a reciprocating plate. The cooling ring is sleeved on the motor housing. The cooling ring is a circular shell. The cooling ring is filled with coolant. One end of the slide plate is fixedly connected to the wall of the cooling ring, and the other end extends horizontally and is close to the rocker arm. The slide plate is slidably matched with the groove of the motor housing. The fixed rod and the reciprocating plate are fixedly arranged on the top of the slide plate. The fixed rod is close to the end of the slide plate, and the reciprocating plate is close to the cooling ring.

[0014] As a further improvement of the technical solution, a cleaning block is provided on the inner wall of the cleaning ring, and the cleaning block cooperates with the groove of the motor housing.

[0015] Compared with the prior art, the present invention has the following progress and advantages: during the use of the present invention, when the motor is working normally, the output shaft of the motor drives the first connecting shaft to rotate, and then drives the second connecting shaft to rotate, thereby driving the fan blades to rotate, and the wind enters the protective housing through the air inlet of the protective housing, and then enters the cleaning ring through the air inlet pipe and the connecting pipe, and then the wind is discharged through the exhaust hole, thereby blowing and cooling the motor housing; When the connecting shaft 1 is stuck, the connecting shaft 2 does not rotate, and the trigger plate moves down, thereby causing the clamping plate and the limit plate to move down, so that the spline sleeve and the keyway of the rotating shaft 2 are matched, and the transmission of the connecting shaft 2 and the connecting shaft 1 is connected. The handle is turned to adjust the distance between the mounting plate 1 and the mounting plate 2, thereby adjusting the transmission force between the mounting plate 2 and the mounting plate 1. The external step at the end of the guide column 1 contacts the collar, thereby pushing the collar to move, and then driving the rack to move, thereby driving the cleaning ring to move with the motor housing. The rack moves and drives the gear to rotate, thereby driving the rotating shaft 2 and the rotating shaft 1 to rotate, thereby driving the fan blades to rotate, so that the motor housing can be cooled by blowing air. When the gas enters the connection housing through the cleaning ring, it can drive the cooling ring to move back and forth on the motor housing, thereby cooling the motor housing; When the cleaning ring moves along the motor housing, the cleaning block can clean the dust in the groove of the motor housing, thereby improving the heat dissipation effect of the motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the interior of the protective shell of the present invention.

[0019] Figure 3 It is a schematic diagram of the transmission mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of a transmission component of the present invention.

[0021] Figure 5 It is a schematic diagram of the cooperation between the connecting shaft 1 and the mounting plate 2 of the present invention.

[0022] Figure 6 It is a schematic diagram of the cooling mechanism of the present invention.

[0023] Figure 7 It is a second schematic diagram of the transmission assembly of the present invention.

[0024] Figure 8 It is a schematic diagram of the installation of the collar of the present invention.

[0025] Fig. 9 It is a schematic diagram of the trigger component of the present invention.

[0026] Fig.10 It is a schematic diagram of the coordination between the trigger assembly and the transmission assembly of the present invention.

[0027] Fig.11 It is a schematic diagram of the fan blade installation of the present invention.

[0028] Fig.12 Schematic diagram of the transmission assembly of the present invention.

[0029] Fig.13 It is a schematic diagram of a cleaning ring of the present invention.

[0030] Fig.14 It is a schematic diagram of the cooling mechanism of the present invention.

[0031] Fig.15 It is a schematic diagram of the cooperation between the reciprocating component 1, the reciprocating component 2 and the cooling component of the present invention.

[0032] Fig.16 It is a schematic diagram of the installation of the swing rod 1, the swing rod 2 and the swing rod 3 of the present invention.

[0033] The figure shows: 10. Protective housing; 110. Air inlet; 20, cleaning ring; 210, connecting pipe; 220, connecting plate 1; 230, exhaust hole; 240, cleaning block; 30. Transmission mechanism; 310. Transmission assembly 1; 311. Connecting shaft 1; 312. Mounting plate 1; 313. Mounting plate 2; 314. Guide column 1; 315. Accommodating groove; 316. Guide column 2; 317. Connecting block; 320. Displacement assembly; 321. Push plate; 322. Handle; 323. Screw rod; 324. Guide rod; 325. Connecting sleeve 1; 326. Connecting sleeve 2; 40. Cooling mechanism; 410. Support seat; 411. Ring; 412. Connecting rod; 413. Rack; 414. Support plate; 415. Guide column three; 420. Transmission assembly two; 421. Connecting shaft two; 422. Bevel gear one; 423. Rotating shaft one; 424. Bevel gear two; 425. Support plate; 426. Bevel gear three; 427. Fan blade; 428. Bevel gear three; 430. Air inlet pipe; 431. Fixed plate; 440. Trigger assembly; 441. Connecting ring; 442. Centrifugal telescopic rod; 443. Card plate; 444. Connecting plate two; 445. Trigger plate; 450. Transmission assembly three; 451. Rotating shaft two; 452. Gear; 453. Spline sleeve; 454. Limit plate; 455. Limit rod one; 456. Limit rod two; 50. Cooling mechanism; 510. Reciprocating assembly one; 511. Exhaust duct one; 512. Connecting shell; 513. Pulley; 514. Exhaust duct two; 515. Rocker rod one; 516. Pressure column; 520. Reciprocating assembly two; 521. Load-bearing plate; 522. Rotating shaft three; 523. Coil spring; 524. Rocker rod two; 525. Rocker rod three; 526. Stop rod; 530. Cooling assembly; 531. Cooling ring; 532. Slide plate; 533. Fixed rod; 534. Reciprocating plate. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1-13 As shown, a micro motor protection device comprises: The protective shell 10 is a cylindrical structure. The protective shell 10 is coaxially fixedly connected to the end of the motor. The end of the output shaft of the motor is provided with a transmission mechanism 30. The transmission mechanism 30 includes a transmission component 1 310. The transmission component 1 310 includes a connecting shaft 1 311, a mounting plate 1 312, a mounting plate 2 313, a guide column 1 314, a guide column 2 316, and a connecting block 317. The connecting shaft 1 311 is coaxially arranged with the output shaft of the motor. A keyway is provided on the circumference of the end of the connecting shaft 1 311. The mounting plate 1 312 is sleeved on the end of the connecting shaft 1 311. The mounting plate 1 312 is annular, and the inner ring surface of the mounting plate 1 312 is provided with a keyway with the end of the connecting shaft 1 311. The mounting plate 313 is coaxially fixedly connected to the output shaft end of the motor, and a receiving groove 315 is provided on the surface of the mounting plate 313. There are multiple receiving grooves 315 and they are evenly arranged around. One end of the guide column 316 is provided with an external step, and the other end passes through the surface of the mounting plate 312 and is fixedly connected with the connecting block 317. There are multiple guide columns 316 and they correspond one to one with the receiving groove 315. The connecting block 317 matches the receiving groove 315, and the surface of the connecting block 317 in contact with the edge of the receiving groove 315 is arranged obliquely. A spring 1 is sleeved on the guide column 316, and one end of the spring 1 contacts the connecting block 317, and the other end contacts the surface of the mounting plate 312.

[0039] More specifically, a shift assembly 320 is provided below the connecting shaft 1 311, and the shift assembly 320 includes a push plate 321, a screw rod 323, a guide rod 324, a connecting sleeve 1 325, and a connecting sleeve 2 326. The connecting sleeve 1 325 and the connecting sleeve 2 326 are horizontally fixed to the ends of the motor housing. The push plate 321 is located below the mounting disk 1 312. A slot is provided on the top of the push plate 321, and the bottom of the mounting disk 1 312 is stuck in the slot. One end of the screw rod 323 is coaxially fixedly connected with a handle 322, and the other end of the screw rod 323 passes through the push plate 321 and extends into the connecting sleeve 1 325. The guide rod 324 is parallelly arranged on one side of the screw rod 323, and the guide rod 324 extends into the connecting sleeve 2 326. Rotating the handle 322 can adjust the distance between the mounting disk 1 312 and the mounting disk 2 313, thereby adjusting the transmission force between the mounting disk 2 313 and the mounting disk 1 312.

[0040] More specifically, the wall of the protective housing 10 is provided with an air inlet 110, the cleaning ring 20 is sleeved on the motor housing, the cleaning ring 20 is a hollow ring body, the inner ring surface of the cleaning ring 20 is provided with an exhaust hole 230, the cleaning ring 20 is connected with a connecting pipe 210, one end of the connecting pipe 210 is connected with the cleaning ring 20, and the other end passes through the protective housing 10 and extends into the protective housing 10, the end of the connecting pipe 210 is connected with an air inlet pipe 430, and the air inlet pipe 430 is provided with a cooling mechanism 40, and the cooling mechanism 40 includes a support seat 4 10. Transmission assembly 2 420, support seat 410 is arranged in protective housing 10, transmission assembly 2 420 includes connecting shaft 2 421, bevel gear 1 422, rotating shaft 1 423, bevel gear 2 424, support plate 425, bevel gear 3 426, fan blade 427, bevel gear 3 428, the wall of air inlet pipe 430 is vertically fixed with fixing plate 431, connecting shaft 2 421 is rotatably mounted on fixing plate 431, connecting shaft 2 421 is parallel to connecting shaft 1 311, bevel gear 1 422 is coaxially fixedly sleeved on connecting shaft 430, and ... The end of the second shaft 421 is connected, the first shaft 423 is vertically rotatably arranged in the air inlet pipe 430, and the two ends of the first shaft 423 extend out of the air inlet pipe 430. The second bevel gear 424 is coaxially fixedly sleeved on the top of the first shaft 423, and the second bevel gear 424 is meshed with the first bevel gear 422. The support plate 425 is fixedly arranged in the air inlet pipe 430, and the fan blade 427 is rotatably installed on the support plate 425. The third bevel gear 428 is coaxially fixedly sleeved on the central shaft end of the fan blade 427, and the third bevel gear 426 is coaxially fixedly sleeved on the first shaft 42 3, bevel gear three 426 is meshed with bevel gear three 428, connecting shaft two 421 and connecting shaft one 311 are driven by belts, when the motor works normally, the output shaft of the motor drives connecting shaft one 311 to rotate, and then drives connecting shaft two 421 to rotate, thereby driving fan blades 427 to rotate, and wind enters into the protective housing 10 through the air inlet 110 of the protective housing 10, and then enters into the cleaning ring 20 through the air inlet pipe 430 and the connecting pipe 210, and then the wind is discharged through the exhaust hole 230, so as to blow and dissipate heat to the motor housing.

[0041] like Figure 6-12As shown, a transmission assembly 3 450 is arranged on the top of the support seat 410, and the transmission assembly 3 450 includes a second shaft 451, a spline sleeve 453, a limit plate 454, a limit rod 1 455, and a limit rod 2 456. The second shaft 451 is vertically rotatably arranged on the top of the support seat 410, and the second shaft 451 is coaxially arranged with the first shaft 423. A key groove is opened on the bottom circumference of the first shaft 423, and a key groove is opened on the top circumference of the second shaft 451. The spline sleeve 453 is sleeved on the first shaft On the bottom end of rotating shaft 423 and the top end of rotating shaft 2 451, the limiting plate 454 is sleeved on the bottom end of rotating shaft 1 423, the limiting rod 1 455 is vertically fixed on the bottom end of rotating shaft 1 423, the limiting rod 2 456 is vertically fixed on the wall of rotating shaft 1 423 and away from the limiting rod 1 455, a spring 2 is sleeved on rotating shaft 1 423, one end of the spring 2 is in contact with the limiting rod 2 456, and the other end is in contact with the limiting plate 454, and a trigger assembly 440 is provided on one side of connecting shaft 2 421.

[0042] More specifically, the trigger assembly 440 includes a connecting ring 441, a centrifugal telescopic rod 442, a clamping plate 443, a connecting plate 444, and a trigger plate 445. The connecting ring 441 is coaxially fixedly sleeved on the end of the connecting shaft 421, the centrifugal telescopic rod 442 is arranged on the annular surface of the connecting ring 441, and a plurality of centrifugal telescopic rods 442 are arranged evenly around the connecting ring 441. The clamping plate 443 is fixedly connected to the limit plate 454, and the trigger plate 445 is located above the connecting ring 441. The trigger plate 445 and the clamping plate 443 are fixedly connected to the limit plate 454. 3 are connected by a connecting plate 444. In the initial state, the spline sleeve 453 matches the keyway of the second rotating shaft 451. When the motor works normally, the output shaft of the motor drives the connecting shaft 1 311 to rotate, and then drives the connecting shaft 2 421 to rotate, and the centrifugal telescopic rod 442 extends, thereby resisting the trigger plate 445 to move up, thereby driving the clamping plate 443 and the limiting plate 454 to move up, so that the spline sleeve 453 is separated from the keyway of the second rotating shaft 451, and the transmission of the connecting shaft 2 421 and the connecting shaft 1 311 is disconnected.

[0043] like Figure 6-8As shown, a collar 411 is sleeved on the connecting shaft 1 311, and a connecting rod 412 is fixedly connected to the collar 411. A support plate 414 is vertically fixedly arranged in the protective shell 10. The connecting rod 412 and the support plate 414 are connected through a guide column 3 415. One end of the guide column 3 415 is fixedly connected to the connecting rod 412, and the other end passes through the plate surface of the support plate 414 and is provided with an external step. Two guide columns 3 415 are provided and are arranged in parallel. A spring 3 is sleeved on the guide column 3 415, one end of the spring 3 contacts with the connecting rod 412, and the other end contacts with the plate surface of the support plate 414. A rack 413 is fixedly arranged on the end of the connecting rod 412, and a gear 452 is coaxially fixedly sleeved on the rotating shaft 2 451. The gear 452 is meshed with the rack 413. The end of the rack 413 is connected to the cleaning ring 20 through a connecting plate 1 220. When the connecting shaft 1 When 311 is stuck, the second connecting shaft 421 does not rotate, and the trigger plate 445 moves downward, thereby causing the clamping plate 443 and the limit plate 454 to move downward, so that the spline sleeve 453 cooperates with the keyway of the second rotating shaft 451, and the transmission of the second connecting shaft 421 and the first connecting shaft 311 is connected. The handle 322 is turned to adjust the distance between the first mounting plate 312 and the second mounting plate 313, thereby adjusting the transmission force between the second mounting plate 313 and the first mounting plate 312. The external step at the end of the guide column 1 314 abuts against the ring 411, thereby pushing the ring 411 to move, and then driving the rack 413 to move, thereby driving the cleaning ring 20 to move in the motor housing. During the movement of the rack 413, the gear 452 is driven to rotate, thereby driving the second rotating shaft 451 and the first rotating shaft 423 to rotate, thereby driving the fan blades 427 to rotate, so that the motor housing can be cooled by blowing air.

[0044] like Figure 14-16 As shown, a cooling mechanism 50 is provided on the wall of the motor housing, and the cooling mechanism 50 includes a reciprocating component 1 510, a reciprocating component 2 520, and a cooling component 530. The reciprocating component 1 510 includes an exhaust pipe 1 511, a connecting shell 512, a dial 513, an exhaust pipe 2 514, and a swing rod 1 515. The connecting shell 512 is connected to the cleaning ring 20 through the exhaust pipe 1 511. The connecting shell 512 is a rectangular parallelepiped structure. The dial 513 is rotatably installed in the connecting shell 512. The central axis of the dial 513 passes through the wall of the connecting shell 512. One end of the swing rod 1 515 is fixedly connected to the end of the central axis of the dial 513. The other end of the swing rod 1 515 is horizontally fixedly connected with a pressure column 516. The pressure column 516 is parallel to the central axis of the dial 513. The exhaust pipe 2 514 is connected to the wall of the connecting shell 512, and the reciprocating component 2 520 is arranged on the wall of the connecting shell 512.

[0045] More specifically, the reciprocating component 2 520 includes a supporting plate 521, a rotating shaft 3 522, a coil spring 523, a rocker rod 2 524, a rocker rod 3 525, and a blocking rod 526. The supporting plate 521 is fixedly arranged on the wall portion of the connecting shell 512, the rotating shaft 3 522 is rotatably arranged on the plate surface of the supporting plate 521, the rotating shaft 3 522 is parallel to the pressure column 516, the rocker rod 2 524 and the rocker rod 3 525 are fixedly arranged on the ends of the rotating shaft 3 522, the rocker rod 2 524 and the rocker rod 3 525 are close to the rocker rod 1 515, a coil spring 523 is sleeved between the rotating shaft 3 522 and the plate surface of the supporting plate 521, the blocking rod 526 is vertically fixed on the plate surface of the supporting plate 521, and the blocking rod 526 is above the rocker rod 2 524 and close to the rotating shaft 3 522.

[0046] More specifically, the cooling assembly 530 includes a cooling ring 531, a slide plate 532, a fixing rod 533, and a reciprocating plate 534. The cooling ring 531 is sleeved on the motor housing. The cooling ring 531 is a circular shell. The cooling ring 531 is filled with coolant. One end of the slide plate 532 is fixedly connected to the wall of the cooling ring 531, and the other end extends horizontally and is close to the swing rod 515. The slide plate 532 is slidably matched with the groove of the motor housing. The fixing rod 533 and the reciprocating plate 534 are fixedly arranged on the top of the slide plate 532. The fixing rod 533 is close to the end of the slide plate 532, and the reciprocating plate 534 is close to the cooling ring 53 1. When the gas enters the connecting shell 512 through the cleaning ring 20, the gas blows the dial wheel 513 to rotate, thereby driving the pendulum rod 1 515 to deflect, and then the pressure column 516 contacts the fixed rod 533, thereby driving the slide plate 532 to move, thereby driving the cooling ring 531 to move along the motor housing, and then the pressure column 516 rotates and touches the pendulum rod 2 524, thereby driving the pendulum rod 2 524 and the pendulum rod 3 525 to deflect, and then the pendulum rod 3 525 contacts the reciprocating plate 534, thereby pushing the cooling ring 531 to reset, so that the cooling ring 531 reciprocates in the motor housing, thereby cooling the motor housing.

[0047] More specifically, a cleaning block 240 is provided on the inner wall of the cleaning ring 20, and the cleaning block 240 cooperates with the groove of the motor housing. When the cleaning ring 20 moves along the motor housing, the cleaning block 240 can clean the dust in the groove of the motor housing, thereby improving the heat dissipation effect of the motor housing.

[0048] Working principle: During the use of the present invention, when the motor is working normally, the output shaft of the motor drives the connecting shaft 1 311 to rotate, and then drives the connecting shaft 2 421 to rotate, thereby driving the fan blade 427 to rotate, and the wind enters the protective housing 10 through the air inlet 110 of the protective housing 10, and then enters the cleaning ring 20 through the air inlet pipe 430 and the connecting pipe 210, and then the wind is discharged through the exhaust hole 230, thereby blowing and cooling the motor housing. When the motor is working normally, the output shaft of the motor drives the connecting shaft 1 311 to rotate, and then drives the connecting shaft 2 421 to rotate, and the centrifugal telescopic rod 442 extends, thereby contacting the trigger plate 4 45 moves up, thereby driving the clamping plate 443 and the limiting plate 454 to move up, so that the spline sleeve 453 is separated from the keyway of the second rotating shaft 451, and the transmission of the second connecting shaft 421 and the first connecting shaft 311 is disconnected. When the first connecting shaft 311 is stuck, the second connecting shaft 421 does not rotate, and the trigger plate 445 moves down, thereby driving the clamping plate 443 and the limiting plate 454 to move down, so that the spline sleeve 453 is matched with the keyway of the second rotating shaft 451, and the transmission of the second connecting shaft 421 and the first connecting shaft 311 is connected. The handle 322 is turned to adjust the distance between the first mounting plate 312 and the second mounting plate 313, thereby adjusting The transmission force of the second mounting plate 313 and the first mounting plate 312 causes the external step at the end of the guide column 1 314 to contact the collar 411, thereby pushing the collar 411 to move, and then driving the rack 413 to move, thereby driving the cleaning ring 20 to move in the motor housing. During the movement of the rack 413, the gear 452 is driven to rotate, thereby driving the second rotating shaft 451 and the first rotating shaft 423 to rotate, thereby driving the fan blade 427 to rotate, so that the motor housing can be blown and cooled. When the cleaning ring 20 moves along the motor housing, the cleaning block 240 can clean the dust in the groove of the motor housing, thereby improving the cleaning of the motor housing. Heat dissipation effect, when the gas enters the connecting shell 512 through the cleaning ring 20, the gas blows the dial wheel 513 to rotate, thereby driving the pendulum rod 1 515 to deflect, and then the pressure column 516 contacts the fixed rod 533, thereby driving the slide plate 532 to move, thereby driving the cooling ring 531 to move along the motor housing, and then the pressure column 516 rotates and touches the pendulum rod 2 524, thereby driving the pendulum rod 2 524 and the pendulum rod 3 525 to deflect, and then the pendulum rod 3 525 contacts the reciprocating plate 534, thereby pushing the cooling ring 531 to reset, so that the cooling ring 531 moves back and forth on the motor housing, thereby cooling the motor housing.

[0049] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A micro motor protection device, characterized in that: It includes: The protective shell is a cylindrical structure. The protective shell is coaxially fixedly connected to the end of the motor. A transmission mechanism is arranged at the end of the output shaft of the motor. The transmission mechanism includes a transmission component 1. The transmission component 1 includes a connecting shaft 1, a mounting plate 1, a mounting plate 2, a guide column 1, a guide column 2, and a connecting block. The connecting shaft 1 is coaxially arranged with the output shaft of the motor. A keyway is provided on the circumference of the end of the connecting shaft 1. The mounting plate is set at the end of the connecting shaft 1. The mounting plate 1 is annular. The inner ring surface of the mounting plate 1 is provided with a keyway matching the keyway at the end of the connecting shaft 1. A clamping block and a mounting plate 2 are coaxially fixedly connected to the output shaft end of the motor. A receiving groove is provided on the surface of the mounting plate 2. There are multiple receiving grooves and they are evenly arranged around. One end of the guide column 2 is provided with an external step, and the other end passes through the surface of the mounting plate 1 and is fixedly connected to the connecting block. There are multiple guide columns 2 and they correspond one to one with the receiving grooves. The connecting block matches the receiving groove, and the surface of the connecting block in contact with the edge of the receiving groove is arranged obliquely. A spring 1 is sleeved on the guide column 2, and one end of the spring 1 contacts the connecting block, and the other end contacts the surface of the mounting plate 1.

2. A micro motor protection device according to claim 1, characterized in that: A shift assembly is arranged below the connecting shaft one, and the shift assembly includes a push plate, a screw rod, a guide rod, a connecting sleeve one, and a connecting sleeve two. The connecting sleeve one and the connecting sleeve two are horizontally fixed to the ends of the motor housing, and the push plate is located below the mounting disk one. A slot is provided on the top of the push plate, and the bottom of the mounting disk one is stuck in the slot. A handle is coaxially fixedly connected to one end of the screw rod, and the other end of the screw rod passes through the push plate and extends into the connecting sleeve one. The guide rod is arranged parallel to one side of the screw rod, and the guide rod extends into the connecting sleeve two. The distance between the mounting disk one and the mounting disk two can be adjusted by rotating the handle, thereby adjusting the transmission force between the mounting disk two and the mounting disk one.

3. A micro motor protection device according to claim 2, characterized in that: An air inlet is provided on the wall of the protective shell, a cleaning ring is sleeved on the motor housing, the cleaning ring is a hollow ring body, an exhaust hole is provided on the inner ring surface of the cleaning ring, a connecting pipe is connected to the cleaning ring, one end of the connecting pipe is connected to the cleaning ring, and the other end passes through the protective shell and extends into the protective shell, and the end of the connecting pipe is connected to the air inlet pipe, and a cooling mechanism is provided on the air inlet pipe, the cooling mechanism includes a support seat and a transmission component 2, the support seat is arranged in the protective shell, the transmission component 2 includes a connecting shaft 2, a bevel gear 1, a rotating shaft 1, a bevel gear 2, a support plate, a bevel gear 3, a fan blade, and a bevel gear 3, and the wall of the air inlet pipe is vertically fixed A fixing plate is provided, connecting shaft two is rotatably installed on the fixing plate, connecting shaft two is parallel to connecting shaft one, a bevel gear is coaxially fixedly sleeved at the end of connecting shaft two, rotating shaft one is vertically rotatably arranged in the air inlet pipe, two ends of rotating shaft one extend out of the air inlet pipe, bevel gear two is coaxially fixedly sleeved at the top of rotating shaft one, bevel gear two is meshed with bevel gear one, a support plate is fixedly arranged in the air inlet pipe, fan blades are rotatably installed on the support plate, bevel gear three is coaxially fixedly sleeved at the central shaft end of the fan blade, bevel gear three is coaxially fixedly sleeved on rotating shaft one, bevel gear three is meshed with bevel gear three, connecting shaft two and connecting shaft one are driven by a belt.

4. A micro motor protection device according to claim 3, characterized in that: A transmission component three is arranged on the top of the support seat, and the transmission component three includes a rotating shaft two, a spline sleeve, a limit plate, a limit rod one, and a limit rod two. The rotating shaft two is vertically rotatably arranged on the top of the support seat, and the rotating shaft two is coaxially arranged with the rotating shaft. A key groove is opened on the circumference of the bottom end of the rotating shaft one, and a key groove is opened on the circumference of the top end of the rotating shaft two. The spline sleeve is sleeved on the bottom end of the rotating shaft one and the top end of the rotating shaft two, and the limit plate is sleeved on the bottom end of the rotating shaft one. The limit rod one is vertically fixed on the bottom end of the rotating shaft one, and the limit rod two is vertically fixed on the wall of the rotating shaft one and away from the limit rod one. A spring two is sleeved on the rotating shaft one, one end of the spring two is in contact with the limit rod two, and the other end is in contact with the limit plate. A trigger component is arranged on one side of the connecting shaft two.

5. A micro motor protection device according to claim 4, characterized in that: The trigger assembly includes a connecting ring, a centrifugal telescopic rod, a clamping plate, a second connecting plate, and a trigger plate. The connecting ring is coaxially fixedly sleeved at the end of the second connecting shaft. The centrifugal telescopic rod is arranged on the annular surface of the connecting ring. There are multiple centrifugal telescopic rods that are evenly arranged around. The clamping plate is fixedly connected to the limit plate. The trigger plate is located above the connecting ring. The trigger plate and the clamping plate are connected by the second connecting plate. In the initial state, the spline sleeve matches the keyway of the second rotating shaft.

6. A micro motor protection device according to claim 5, characterized in that: A collar is sleeved on the connecting shaft one, and a connecting rod is fixedly connected to the collar. A support plate is vertically fixedly arranged in the protective shell, and the connecting rod and the support plate are connected through a guide column three, one end of the guide column three is fixedly connected to the connecting rod, and the other end passes through the plate surface of the support plate and is provided with an external step. Two guide columns three are provided and are arranged in parallel, and a spring three is sleeved on the guide column three, one end of the spring three contacts with the connecting rod, and the other end contacts with the plate surface of the support plate, a rack is fixedly arranged on the end of the connecting rod, a gear is coaxially fixedly sleeved on the rotating shaft two, the gear is meshed with the rack, and the end of the rack is connected to the cleaning ring through a connecting plate one.

7. A micro motor protection device according to claim 6, characterized in that: A cooling mechanism is provided on the wall of the motor housing, and the cooling mechanism includes a reciprocating component 1, a reciprocating component 2, and a cooling component. The reciprocating component 1 includes an exhaust pipe 1, a connecting shell, a dial, an exhaust pipe 2, and a swing arm 1. The connecting shell is connected to the cleaning ring through the exhaust pipe 1. The connecting shell is a rectangular structure. The dial is rotatably installed in the connecting shell. The central axis of the dial passes through the wall of the connecting shell. One end of the swing arm 1 is fixedly connected to the end of the central axis of the dial. The other end of the swing arm 1 is horizontally fixedly connected with a pressure column. The pressure column is parallel to the central axis of the dial. The exhaust pipe 2 is connected to the wall of the connecting shell, and the reciprocating component 2 is arranged on the wall of the connecting shell.

8. A micro motor protection device according to claim 7, characterized in that: The reciprocating component 2 includes a bearing plate, a rotating shaft 3, a coil spring, a rocker rod 2, a rocker rod 3, and a stopper rod. The bearing plate is fixedly arranged on the wall portion connected to the shell, the rotating shaft 3 is rotatably arranged on the plate surface of the bearing plate, the rotating shaft 3 is parallel to the pressure column, the rocker rod 2 and the rocker rod 3 are fixedly arranged on the ends of the rotating shaft 3, the rocker rod 2 and the rocker rod 3 are close to the rocker rod 1, a coil spring is sleeved between the rotating shaft 3 and the plate surface of the bearing plate, the stopper rod is vertically fixed on the plate surface of the bearing plate, and the stopper rod is above the rocker rod 2 and close to the rotating shaft 3.

9. A micro motor protection device according to claim 8, characterized in that: The cooling assembly includes a cooling ring, a slide plate, a fixed rod, and a reciprocating plate. The cooling ring is sleeved on the motor housing. The cooling ring is a circular ring shell. The cooling ring is filled with coolant. One end of the slide plate is fixedly connected to the wall of the cooling ring, and the other end extends horizontally and is close to the rocker arm. The slide plate is slidably matched with the groove of the motor housing. The fixed rod and the reciprocating plate are fixedly arranged on the top of the slide plate. The fixed rod is close to the end of the slide plate, and the reciprocating plate is close to the cooling ring. A cleaning block is arranged on the inner wall of the cleaning ring, and the cleaning block is matched with the groove of the motor housing.

10. A micro motor protection device and protection method according to claim 9, wherein: S1. When the motor is working normally, the output shaft of the motor drives the connecting shaft 1 to rotate, and then drives the connecting shaft 2 to rotate, thereby driving the fan blades to rotate, and the wind enters the protective housing through the air inlet of the protective housing, and then enters the cleaning ring through the air inlet pipe and the connecting pipe, and then the wind is discharged through the exhaust hole, thereby blowing and cooling the motor housing. When the motor is working normally, the output shaft of the motor drives the connecting shaft 1 to rotate, and then drives the connecting shaft 2 to rotate, and the centrifugal telescopic rod extends, thereby resisting the trigger plate to move up, thereby driving the card plate and the limit plate to move up, so that the spline sleeve is separated from the keyway of the rotating shaft 2, and the transmission of the connecting shaft 2 and the connecting shaft 1 is disconnected; S2. When the connecting shaft 1 is stuck, the connecting shaft 2 does not rotate, and the trigger plate moves down, thereby causing the clamping plate and the limit plate to move down, so that the spline sleeve and the keyway of the rotating shaft 2 are matched, and the transmission of the connecting shaft 2 and the connecting shaft 1 is connected. The handle is turned to adjust the distance between the mounting plate 1 and the mounting plate 2, thereby adjusting the transmission force between the mounting plate 2 and the mounting plate 1. The external step at the end of the guide column 1 contacts the collar, thereby pushing the collar to move, and then driving the rack to move, thereby driving the cleaning ring to move with the motor housing. During the movement of the rack, the gear is driven to rotate, thereby driving the rotating shaft 2 and the rotating shaft 1 to rotate, thereby driving the fan blades to rotate, so that the motor housing can be blown and cooled. When the cleaning ring moves along the motor housing, the cleaning block can clean the dust in the groove of the motor housing; S3. When the gas enters the connecting shell through the cleaning ring, the gas blows the dial to rotate, thereby driving the pendulum rod 1 to deflect, and then the pressure column contacts the fixed rod, thereby driving the slide plate to move, thereby driving the cooling ring to move along the motor housing, and then the pressure column rotates and touches the pendulum rod 2, thereby driving the pendulum rod 2 and pendulum rod 3 to deflect, and then the pendulum rod 3 contacts the reciprocating plate, thereby pushing the cooling ring to reset, so that the cooling ring moves back and forth in the motor housing, thereby cooling the motor housing.

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