Gear motor and scooter provided with same

Abstract

The invention discloses a speed reduction motor and a scooter provided with the speed reduction motor, and relates to the technical field of motors, the speed reduction motor comprises a shell, a middle shaft is rotationally arranged in the shell, one end, located in the shell, of the middle shaft is connected with a speed reduction gear set, one end, extending out of the shell, of the middle shaft is connected with a scooter body, and the other end of the middle shaft extends out of the shell. A heat dissipation channel is formed in the inner wall of the shell and used for introducing a heat exchange medium to absorb heat generated by the gear motor, and a temperature sensor is arranged in the shell and used for detecting the internal temperature; the gear motor is provided with a water tank in a matched mode, a sealing cover is arranged on the upper side of the water tank, a first partition plate and a second partition plate are sequentially arranged in the water tank from top to bottom, and the opposite ends of the first partition plate and the second partition plate are connected with drivers respectively. According to the invention, the heat dissipation flexibility of the motor is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a reduction motor and a scooter equipped with the reduction motor. Background Art

[0002] A motor is an electrical device that converts electrical energy into mechanical energy (electric motor) or mechanical energy into electrical energy (generator). It is an indispensable power source or energy conversion device in modern industry, transportation, home appliances and other fields. In practical applications, the motor will cooperate with gearboxes and other structures to change the transmission ratio to adapt to different speed requirements.

[0003] A reduction motor is a power transmission device that combines a motor with a reducer. It is mainly used to reduce the output speed of the motor and increase the output torque to meet the speed and torque requirements of different mechanical equipment. The working principle of the reduction motor is to convert the high-speed rotation of the motor into a low-speed and high-torque output through the gear transmission (or worm gear transmission) in the reducer.

[0004] The motor generates heat during operation. High temperature will reduce the motor's operating efficiency and pose certain safety risks. Therefore, motor heat dissipation is a key link to ensure the safe and efficient operation of the motor. The motor generates a lot of heat during operation. If the heat is not dissipated in time, the motor temperature will rise, thereby reducing the motor's efficiency and life, and even damaging the motor. At present, the heat dissipation method of the motor mainly relies on air heat dissipation or liquid heat dissipation. The adjustment is too regular and cannot meet the heat dissipation needs in different environments. Summary of the invention

[0005] The object of the present invention is to provide a reduction motor and a scooter equipped with the reduction motor to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a scooter equipped with a reduction motor, comprising a body, a front wheel and a rear wheel, the front wheel and the rear wheel are rotatably arranged on the front and rear sides of the body respectively, at least one of the front wheel and the rear wheel is equipped with a reduction motor, a cleaning component is arranged on the lower side of the body, the cleaning component is transmission connected to the rear wheel, and is used to clear obstacles on the driving path of the rear wheel.

[0007] A reduction motor comprises a shell, in which a central shaft is rotatably arranged, one end of the central shaft located in the shell is connected to a reduction gear set, one end of the central shaft extends out of the shell and is connected to a vehicle body, a heat dissipation channel is arranged on the inner wall of the shell, for passing a heat exchange medium to absorb the heat generated by the reduction motor, a temperature sensor is arranged in the shell, for detecting the internal temperature, and a wheel hub is fixed on the outer side of the shell, for mounting the front wheel or the rear wheel.

[0008] According to the above technical solution, the reduction motor installed on the rear wheel has its shaft cooperatively connected with the cleaning assembly.

[0009] According to the above technical scheme, the cleaning component includes transmission gear 1, transmission gear 2, a rotating shaft, two fixed blocks, bevel gear 1, bevel gear 2, a connecting frame and a brush module, wherein one set of transmission gears is arranged on the central shaft, the rotating shaft is rotatably arranged on the lower side of the vehicle body through two fixed blocks, the second set of transmission gears is arranged at one end of the rotating shaft and is connected to the transmission gear 1 in transmission, one set of bevel gears is arranged on the rotating shaft, the connecting frame is fixedly connected to the fixed blocks, the brush module is arranged on the connecting frame, and the second set of bevel gears is arranged on the brush module and cooperates with the bevel gear 1.

[0010] According to the above technical solution, the brush module includes a rotating rod, one end of which is connected to a spring, the other end of the spring is connected to a telescopic tube, one end of the telescopic tube is sleeved on the outside of the rotating rod and slidably cooperates with it, and the other end of the telescopic tube is threadedly connected to a brush head.

[0011] According to the above technical solution, a water tank is installed on the rear side of the vehicle body, a cover is provided on the upper side of the water tank, and partition one and partition two are arranged in the water tank from top to bottom. The opposite ends of partition one and partition two are respectively connected to drivers for controlling the deflection of partition one and partition two.

[0012] According to the above technical solution, a liquid level detection module is provided in the water tank to determine whether the water level in the water tank needs to be replenished. If necessary, water is replenished by lifting the cover to expose the upper opening of the water tank.

[0013] According to the above technical solution, a filter plate is connected to the lower side of the cover, and a water inlet is opened on the upper side of the filter plate in the water tank.

[0014] According to the above technical solution, a plurality of blades are arranged on the circumference of the other end of the rotating shaft, a heat dissipation tube is arranged on the outer cover of the blades, a plurality of heat dissipation fins are arranged on the outer circumference of the heat dissipation tube, an inlet is arranged on the upper side of the heat dissipation tube, the inlet is connected to the bottom of the water tank, an outlet is arranged on the lower side of the heat dissipation tube, the outlet is connected to the upper side of the heat dissipation channel.

[0015] According to the above technical solution, an output device is externally connected to the lower side of the heat dissipation channel, and the output end of the output device is connected to the water inlet.

[0016] According to the above technical solution, disc brakes are arranged on the front wheels and the rear wheels, and shock-absorbing springs are arranged between the rear wheels and the vehicle body.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a water tank, can dissipate the heat of the reduction motor, and at the same time, according to different heat dissipation requirements, the heat exchange cycle of the water body can be regulated, and the flexibility is high; by providing a heat dissipation cylinder, the external wind contacted by the scooter during driving can be used to accelerate the cooling process of the water body, thereby improving the heat dissipation efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the scooter of the present invention; Figure 2 It is a schematic diagram of the structure of the cleaning assembly of the present invention; Figure 3 It is a partial schematic diagram of the cleaning assembly of the present invention; Figure 4 is a cross-sectional view of the brush module of the present invention; Figure 5 It is a structural schematic diagram of the heat dissipation tube of the present invention; Figure 6 It is a structural schematic diagram of the reduction motor of the present invention; Figure 7 It is a structural schematic diagram of the water tank of the present invention; Figure 8 is a transverse cross-sectional view of a water tank of the present invention; Fig. 9 is a longitudinal sectional view of a water tank of the present invention; In the figure: 1. body; 2. front wheel; 3. rear wheel; 41. shell; 42. middle shaft; 43. reduction gear set; 44. heat dissipation channel; 45. wheel hub; 5. cleaning component; 51. transmission gear 1; 52. transmission gear 2; 53. rotating shaft; 531. paddle; 532. heat dissipation tube; 533. heat sink; 534. inlet; 535. outlet; 54. fixing block; 55. bevel gear 1; 56. bevel gear 2; 57. connecting frame; 581. rotating rod; 582. spring; 583. telescopic tube; 584. brush head; 6. water tank; 61. cover; 62. partition 1; 63. partition 2; 64. driver; 65. filter plate; 66. water inlet; 7. output device; 8. disc brake; 9. shock-absorbing spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-9The present invention provides a technical solution: a scooter equipped with a reduction motor, comprising a body 1, a front wheel 2 and a rear wheel 3, the front wheel 2 and the rear wheel 3 are rotatably arranged at the front and rear sides of the body 1 respectively, at least one of the front wheel 2 and the rear wheel 3 is equipped with a reduction motor, a cleaning component 5 is arranged at the lower side of the body 1, the cleaning component 5 is transmission-connected with the rear wheel 3, and is used to clear obstacles on the driving path of the rear wheel 3; like Figure 6 As shown, the reduction motor includes a shell 41, in which a central shaft 42 is rotatably arranged, one end of the central shaft 42 located in the shell 41 is connected to a reduction gear set 43, and one end of the central shaft 42 extends out of the shell 41 and is connected to the vehicle body 1, and a heat dissipation channel 44 is arranged on the inner wall of the shell 41 for passing a heat exchange medium to absorb the heat generated by the reduction motor, a temperature sensor is arranged in the shell 41 for detecting the internal temperature, and a wheel hub 45 is fixed on the outer side of the shell 41 for mounting the front wheel 2 or the rear wheel 3.

[0021] It should be additionally explained that the reduction motor installed on the rear wheel 3 has its shaft 42 cooperatively connected with the cleaning assembly 5 .

[0022] like Figure 2~3 As shown, the cleaning component 5 includes a transmission gear 1 51, a transmission gear 2 52, a rotating shaft 53, two fixed blocks 54, a bevel gear 1 55, a bevel gear 2 56, a connecting frame 57 and a brush module, wherein the transmission gear 1 51 is sleeved on the middle shaft 42, the rotating shaft 53 is rotatably set on the lower side of the vehicle body 1 through two fixed blocks 54, the transmission gear 2 52 is sleeved on one end of the rotating shaft 53 and is transmission-connected to the transmission gear 1 51, the bevel gear 1 55 is sleeved on the rotating shaft 53, the connecting frame 57 is fixedly connected to the fixed block 54, the brush module is set on the connecting frame 57, and the bevel gear 2 56 is sleeved on the brush module and cooperates with the bevel gear 1 55.

[0023] In actual operation, the transmission gear 1 51 and the transmission gear 2 52 can be connected by a chain or a belt. When the rear wheel 3 rotates, the transmission gear 1 51 rotates synchronously, driving the transmission gear 2 52 to drive the rotating shaft 53 to rotate, and the bevel gear 1 55 on the rotating shaft 53 rotates accordingly, indirectly driving the bevel gear 2 56 to drive the brush module to rotate, and the brush module rotates to clean the ground.

[0024] Further, such as Figure 4 As shown, the brush module includes a rotating rod 581, one end of which is connected to a spring 582, the other end of which is connected to a telescopic tube 583, one end of which is sleeved on the outside of the rotating rod 581 and slidably cooperated with it, and the other end of the telescopic tube 583 is threadedly connected to a brush head 584.

[0025] Supplementary explanations based on the above structure are as follows: the telescopic cylinder 583 is used to provide a movable margin, which can provide a shock-absorbing effect when the brush head 584 is hit. When encountering uneven terrain, the telescopic cylinder 583 can be freely extended and retracted in length. The brush head 584 is a detachable structure, which is convenient for regular replacement.

[0026] In one embodiment, Figures 7-9 As shown, a water tank 6 is installed on the rear side of the vehicle body 1, a cover 61 is provided on the upper side of the water tank 6, and a partition 1 62 and a partition 2 63 are provided in the water tank 6 from top to bottom. The opposite ends of the partition 1 62 and the partition 2 63 are respectively connected to a driver 64 for controlling the deflection of the partition 1 62 and the partition 2 63.

[0027] Specifically, the baffle 1 62 and the baffle 2 63 are used to extend the waterway, thereby playing an auxiliary heat dissipation effect; further, the deflection states of the baffle 1 62 and the baffle 2 63 are divided into three types: upward, parallel, and downward. When in the upward state, the water body introduced to the upper side of the baffle 1 62 and the baffle 2 63 is in a state of being blocked from flowing downward, and needs to accumulate enough height to flow to the lower space, and the water flow rate is slow; when in the parallel state, the water body introduced to the upper side of the baffle 1 62 and the baffle 2 63 flows normally, and flows into the lower space after reaching the other end; when in the downward state, under the effect of the inclined guide, the water body introduced to the upper side of the baffle 1 62 and the baffle 2 63 is in a fast flow state.

[0028] Preferably, a liquid level detection module is provided in the water tank 6 to determine whether the water level in the water tank 6 needs to be replenished. If necessary, water is replenished by lifting the cover 61 to expose the upper opening of the water tank 6.

[0029] A filter plate 65 is connected to the lower side of the cover 61 , and a water inlet 66 is formed on the upper side of the water tank 6 relative to the filter plate 65 .

[0030] Further, such as Figure 5 As shown, a plurality of blades 531 are arranged on the circumference of the other end of the rotating shaft 53, a heat dissipation tube 532 is arranged on the outer cover of the blade 531, a plurality of heat dissipation fins 533 are arranged on the outer circumference of the heat dissipation tube 532, an inlet 534 is arranged on the upper side of the heat dissipation tube 532, the inlet 534 is connected to the bottom of the water tank 6, an outlet 535 is arranged on the lower side of the heat dissipation tube 532, the outlet 535 is connected to the upper side of the heat dissipation channel 44.

[0031] An output device 7 is externally connected to the lower side of the heat dissipation channel 44 , and an output end of the output device 7 is connected to the water inlet 66 .

[0032] In actual operation, the cooling water in the water tank 6 flows into the heat sink 532, and the paddles 531 inside are driven by the rotating shaft 53, which plays the role of transporting the medium water during the rotation. At the same time, stirring the water body can help to disperse the heat, and transfer the internal heat to the outside through the heat sink 533. With the help of the external wind when the scooter is running, the heat conduction efficiency of the heat sink 533 can be improved, and the cooling of the medium water can be accelerated.

[0033] In one embodiment, disc brakes 8 are provided on the front wheel 2 and the rear wheel 3 , and a shock absorbing spring 9 is provided between the rear wheel 3 and the vehicle body 1 .

[0034] The specific implementation methods are as follows: When the scooter is running normally, the rotation of the rear wheel synchronously drives the rotating shaft 53 to rotate, thereby driving the brush module to rotate, cleaning the ground in front of the rear wheel 3, removing obstacles, preventing the rear wheel 3 from being pierced by sharp objects and causing a tire blowout, thereby increasing the service life and avoiding potential safety hazards.

[0035] During driving, the reduction motor generates heat, which is cooled by the water tank 6. Specifically, medium water is injected into the heat dissipation channel 44 through the water tank 6 to perform heat exchange inside the reduction motor, and the medium water in the heat dissipation channel 44 is transported back to the water tank 6 and filtered through the filter plate 65 to form a circulation cycle. In the initial state, the water level of the cooling water in the water tank 6 is equal to half the height of the water tank 6.

[0036] On this basis, the heat dissipation cycle is regulated according to the internal problems of the reduction motor fed back by the temperature sensor.

[0037] The maximum temperature threshold value of the internal temperature of the reduction motor is set to a, the minimum temperature threshold value is set to b, and the real-time temperature value detected by the temperature sensor is set to t.

[0038] When t is less than b, the interior of the reduction motor is in a low temperature state, and there is no additional heat dissipation requirement. The driver 64 adjusts the partition 1 62 and the partition 2 63 to an upward state. After a certain number of cycles, the water in the water tank 6 will accumulate in the space above the partition 1 62 and the partition 2 63, and no water will flow out from the bottom of the water tank 6. The blades 531 in the heat dissipation cylinder 532 are in an idling state, and no heat exchange medium flows in the heat dissipation channel 44.

[0039] When t is greater than or equal to b and less than or equal to a, the inside of the reduction motor is at a normal working temperature state, and conventional heat dissipation is required at this time. The driver 64 adjusts the partition 1 62 and the partition 2 63 to be parallel, the water in the water tank 6 flows at a normal flow rate, the heat exchange medium flows in the heat dissipation channel 44 with a stable flow rate, and the water is cooled by the heat dissipation tube 532 during the circulation process.

[0040] When t is greater than a, the inside of the reduction motor is in an abnormally high temperature state, and the heat dissipation demand is the highest. The driver 64 adjusts the baffle 1 62 and the baffle 2 63 to a downward state, and the water in the water tank 6 flows rapidly under the guidance of the inclined surface, speeding up each cycle process, thereby helping to accelerate the heat dissipation of the reduction motor and the water itself.

[0041] The water distribution state in the water tank 6 is detected by a liquid level detection module.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reduction motor, comprising a housing (41), characterized in that: A central shaft (42) is rotatably arranged in the shell (41); one end of the central shaft (42) located in the shell (41) is connected to a reduction gear set (43); one end of the central shaft (42) extending out of the shell (41) is connected to the vehicle body (1); a heat dissipation channel (44) is arranged on the inner wall of the shell (41) for passing a heat exchange medium to absorb heat generated by the reduction motor; a temperature sensor is arranged in the shell (41) for detecting the internal temperature; The reduction motor is provided in conjunction with a water tank (6), a cover (61) is provided on the upper side of the water tank (6), a partition plate 1 (62) and a partition plate 2 (63) are provided in sequence from top to bottom in the water tank (6), and the ends of the partition plate 1 (62) and the partition plate 2 (63) facing away from each other are respectively connected to a driver (64) for controlling the deflection of the partition plate 1 (62) and the partition plate 2 (63); The deflection states of the partition plate 1 (62) and the partition plate 2 (63) are divided into three types: upward, parallel, and downward; When in the upward state, the water introduced to the upper side of the partition one (62) and the partition two (63) is in a state of being blocked from flowing downward, and needs to accumulate a sufficient height to flow to the lower space, and the water flow rate is slow; when in the parallel state, the water introduced to the upper side of the partition one (62) and the partition two (63) flows normally, and flows into the lower space after reaching the other end; when in the downward state, under the action of the inclined guide, the water introduced to the upper side of the partition one (62) and the partition two (63) is in a fast flow state.

2. A reduction motor according to claim 1, characterized in that: A liquid level detection module is arranged in the water tank (6).

3. A reduction motor according to claim 2, characterized in that: The lower side of the sealing cover (61) is connected to a filter plate (65), and the water tank (6) is provided with a water inlet (66) on the upper side of the filter plate (65).

4. A scooter equipped with a reduction motor, equipped with a reduction motor as claimed in claim 3, characterized in that: The vehicle comprises a vehicle body (1), a front wheel (2) and a rear wheel (3), wherein the front wheel (2) and the rear wheel (3) are rotatably arranged at the front and rear sides of the vehicle body (1) respectively, and at least one of the front wheel (2) and the rear wheel (3) is equipped with a reduction motor. A cleaning component (5) is arranged at the lower side of the vehicle body (1), and the cleaning component (5) is drivingly connected to the rear wheel (3) and is used to clear obstacles on the travel path of the rear wheel (3); A wheel hub (45) is fixed on the outside of the housing (41) and is used for mounting the front wheel (2) or the rear wheel (3); The reduction motor installed on the rear wheel (3) has its central axis (42) cooperatively connected to the cleaning assembly (5).

5. A scooter equipped with a reduction motor according to claim 4, characterized in that: The cleaning component (5) comprises a transmission tooth 1 (51), a transmission tooth 2 (52), a rotating shaft (53), two fixed blocks (54), a bevel tooth 1 (55), a bevel tooth 2 (56), a connecting frame (57) and a brush module, wherein the transmission tooth 1 (51) is sleeved on the central shaft (42), the rotating shaft (53) is rotatably arranged on the lower side of the vehicle body (1) through the two fixed blocks (54), the transmission tooth 2 (52) is sleeved on one end of the rotating shaft (53) and is transmission-connected to the transmission tooth 1 (51), the bevel tooth 1 (55) is sleeved on the rotating shaft (53), the connecting frame (57) is fixedly connected to the fixed block (54), the brush module is arranged on the connecting frame (57), and the bevel tooth 2 (56) is sleeved on the brush module and cooperates with the bevel tooth 1 (55).

6. A scooter equipped with a reduction motor according to claim 5, characterized in that: The brush module comprises a rotating rod (581), one end of the rotating rod (581) is connected to a spring (582), the other end of the spring (582) is connected to a telescopic tube (583), one end of the telescopic tube (583) is sleeved on the outside of the rotating rod (581) and slidably cooperates with the rotating rod (581), and the other end of the telescopic tube (583) is threadedly connected to a brush head (584); A plurality of paddles (531) are arranged on the circumference of the other end of the rotating shaft (53); a heat dissipation tube (532) is arranged on the outer cover of the paddles (531); a plurality of heat dissipation fins (533) are arranged on the outer circumference of the heat dissipation tube (532); an inlet (534) is provided on the upper side of the heat dissipation tube (532); the inlet (534) is communicated with the bottom of the water tank (6); an outlet (535) is provided on the lower side of the heat dissipation tube (532); the outlet (535) is communicated with the upper side of the heat dissipation channel (44).

7. A scooter equipped with a reduction motor according to claim 6, characterized in that: An output device (7) is externally connected to the lower side of the heat dissipation channel (44), and an output end of the output device (7) is connected to the water inlet (66).

8. A heat dissipation method for a scooter equipped with a reduction motor, applicable to the scooter equipped with a reduction motor as claimed in claim 7, characterized in that: During driving, the reduction motor generates heat, which is cooled by the water tank (6), specifically by injecting medium water into the heat dissipation channel (44) through the water tank (6) to perform heat exchange inside the reduction motor, and then transporting the medium water in the heat dissipation channel (44) back to the water tank (6) and filtering it through the filter plate (65) to form a circulation cycle. In the initial state, the water level of the cooling water in the water tank (6) is equal to half the height of the water tank (6); On this basis, the heat dissipation cycle is regulated according to the internal problems of the reduction motor fed back by the temperature sensor.

9. The heat dissipation method of a scooter equipped with a reduction motor according to claim 8, characterized in that: Set the maximum temperature threshold value of the internal temperature of the reduction motor to a, the minimum temperature threshold value to b, and the real-time temperature value detected by the temperature sensor to t; When t is less than b, the interior of the reduction motor is in a low-temperature state, and no additional heat dissipation is required at this time; the driver (64) adjusts the partition plate 1 (62) and the partition plate 2 (63) to an upward state, and after a certain number of cycles, the water in the water tank (6) will accumulate in the space above the partition plate 1 (62) and the partition plate 2 (63), and no water will flow out of the bottom of the water tank (6), and the blades (531) in the heat dissipation cylinder (532) are in an idling state, and no heat exchange medium flows in the heat dissipation channel (44); When t is greater than or equal to b and less than or equal to a, the interior of the reduction motor is in a normal working temperature state, and conventional heat dissipation is required at this time; the driver (64) adjusts the partition plate 1 (62) and the partition plate 2 (63) to be in a parallel state, the water in the water tank (6) flows at a normal flow rate, the heat exchange medium flows in the heat dissipation channel (44) at a stable flow rate, and the water is cooled by the heat dissipation cylinder (532) during the circulation process; When t is greater than a, the interior of the reduction motor is in an abnormally high temperature state, and the heat dissipation demand is the highest; the driver (64) adjusts the baffle plate 1 (62) and the baffle plate 2 (63) to a downward state, and the water in the water tank (6) flows rapidly under the guidance of the inclined surface, speeding up each circulation process, thereby helping to accelerate the heat dissipation of the reduction motor and the water itself.

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