WO2022148098A1 - Brushless motor having shaft sealing effect - Google Patents

Brushless motor having shaft sealing effect Download PDF

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Publication number
WO2022148098A1
WO2022148098A1 PCT/CN2021/125727 CN2021125727W WO2022148098A1 WO 2022148098 A1 WO2022148098 A1 WO 2022148098A1 CN 2021125727 W CN2021125727 W CN 2021125727W WO 2022148098 A1 WO2022148098 A1 WO 2022148098A1
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WO
WIPO (PCT)
Prior art keywords
motor
bearing
contact pressure
ring
cover
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PCT/CN2021/125727
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French (fr)
Chinese (zh)
Inventor
林侨
Original Assignee
惠州好盈电机有限公司
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Publication of WO2022148098A1 publication Critical patent/WO2022148098A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/403—Sealings between relatively-moving surfaces by means of fluid by changing the state of matter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/04—Arrangements for conditioning of lubricants in the lubricating system by heating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the present application relates to the technical field of brushless motor rotary shaft sealing, and in particular, to a brushless motor with shaft sealing effect.
  • the existing brushless motor is used in the application of high power, high speed, small size, light weight and high efficiency in the model field, so that the service life of the motor is very short, and the service life of the motor bearing is the service life of the motor, especially in the environment In harsh applications, such as brushless motors used in car models in beach seawater, mountain muddy water for a short time, the bearings of the motor are quickly damaged after water enters, which seriously affects the service life of the motor.
  • the existing brushless motor output shaft is waterproofed by external waterproof seals such as rotary seals (oil seals) and rubber rings, which requires additional cost of parts; assembling these external waterproof seals requires reserving assembly space on the motor, increasing The length of the motor occupies the size of the motor; and the waterproof seals rely on the contact type waterproofing with the motor output shaft and the contact type waterproof bearing waterproofing, the contact means that there will be friction, which will increase the no-load current of the motor and lose part of the motor efficiency, and The contact type waterproof friction of the high-speed motor can easily cause the waterproof seal to fail due to heat, and the same is true for the contact type waterproof bearing.
  • the motor rotates at a high speed, and the waterproof bearing is prone to waterproof failure after soaking in water; and the motor output shaft assembly in the model industry is basically connected with the bearing.
  • the ring clearance fit assembly which results in the motor not being waterproofed, and water can easily flow into the motor from the gap between the motor output shaft and the inner ring of the bearing. Therefore, in the prior art, a waterproof sealing grease is provided, and the heat generated when the motor output shaft rotates causes the sealing grease to expand and melt due to thermal expansion, thereby providing a waterproof effect to the motor output shaft.
  • the oil sealing effect can only be achieved when the motor is working, and the above-mentioned shaft sealing effect cannot be achieved when the motor is not working.
  • the heat generated by the motor operation is transferred to the sealing grease. , or the sealing grease is heated and expanded and melted, it takes a certain time, so within this period of time, it is impossible to effectively waterproof the motor output shaft.
  • the purpose of this application is to solve the problem that in the prior art, the oil sealing effect can only be achieved when the motor is working, and the above-mentioned shaft sealing effect cannot be achieved when the motor is not working. It takes a certain amount of time for the sealing grease or the sealing grease to expand and melt when heated. Therefore, during this period of time, the problem of effectively waterproofing the motor output shaft cannot be achieved. motor.
  • a brushless motor with shaft sealing effect includes a motor body, a cover body, a motor output shaft, a bearing, and waterproof sealing grease.
  • the motor output shaft is rotated and arranged at the output end of the motor body through the bearing. It is closed on the open side of the front end of the motor body.
  • the inside of the cover is provided with a bearing cavity for bearing installation.
  • the grease is clamped in the oil storage tank; a contact pressure cover is slidably and telescopically connected in the outer oil storage tank of the cover body, the inner wall of the contact pressure cover is wound with a spiral infrared heater, and the inner wall of the outer oil storage tank of the cover body slides
  • the snap component includes a contact block and a fixing column, the fixed column is fixed on the inner wall of the oil storage tank, and the contact block is slidably arranged on the fixed column through the sliding column and the touch block matches the outer side wall of the touch cover, a touch switch is fixed on the bottom wall of the sliding column, and the touch switch is electrically connected with the infrared heater, and the touch switch is electrically connected to the infrared heater.
  • An engaging groove is formed in the middle of the block, and a driving bump is fixed at one end of the contact pressure block away from the contact pressure cover.
  • the cover body is specifically fixed on the end of the motor body by bolts, and a through hole for passing the output shaft of the motor is formed at the center of the cover body and the contact pressure cover.
  • the bearing includes an outer bearing ring, an inner bearing ring, and a bearing sealing ring, the bearing sealing ring is disposed between the bearing outer ring and the bearing inner ring, the bearing outer ring is tightly fitted with the bearing cavity, and the bearing outer ring is tightly fitted with the bearing cavity.
  • the inner ring of the bearing fits closely with the output shaft of the motor.
  • a limit ring is fixed on the end wall of the outer oil storage tank of the cover body, and a convex ring used in cooperation with the limit ring is fixed on the outer side wall of the contact pressure cover close to the cover body.
  • the inner wall of the convex ring is provided with a limit groove matching the limit ring, and a compression spring is fixed between the convex ring and the inner wall of the oil storage tank outside the cover body.
  • a storage groove is formed on the inner wall of the external oil storage tank of the cover body, a column groove is formed in the storage groove, the fixing column is fixed in the column groove, and the contact pressure block is placed in the storage groove.
  • a return spring is sleeved on the outer wall of the bottom end of the fixing column, and both ends of the return spring are fixedly connected to the outer wall of the fixing column and the top of the sliding column respectively.
  • a side of the contact pressure block close to the contact pressure cover is provided with an inclined surface, the contact pressure cover can move along the inclined surface, and the engagement groove is used in cooperation with the convex ring.
  • the drive projection is provided with a progressive slope
  • the progressive slope communicates with the engaging groove
  • the slope angle of the progressive slope is greater than the slope angle of the slope.
  • the outer wall of the touch cover is provided with a waterproof membrane.
  • the present application provides a brushless motor with shaft sealing effect, which has the following beneficial effects:
  • the infrared heater when the convex ring is in contact with the contact pressure block on the buckle assembly, the infrared heater is driven to heat and melt the grease, so that the grease is infiltrated into the gap between the through hole and the motor output shaft and reaches the oil level. and when the convex ring is separated from the contact pressure block, the infrared heater stops working; this application is provided with an infrared heater that can heat the waterproof sealing grease, so that the motor can be prepared when the motor is not working or in the early stage of the motor. During the working phase, the motor output shaft is protected against water, so that the protection of the motor can be realized at all times.
  • a limit ring is fixed on the end wall of the oil storage tank outside the cover body, and a convex ring matching the limit ring is arranged on the contact pressure cover, and the limit ring is used to limit the position of the convex ring.
  • the convex ring can be engaged with the limit ring through the limit groove; the convex ring can compress the compression spring when sliding into the oil storage groove, and the compressed compression spring can realize the reset of the convex ring and the contact pressure cover.
  • the presence of the column groove facilitates the installation of the fixed column
  • the existence of the storage groove facilitates the installation of the contact pressure block.
  • the inclined surface is provided on the side of the contact pressure block close to the contact pressure cover, and the existence of the inclined surface facilitates the convex ring to push the contact pressure block to move along the fixed column when moving along the inclined surface, and the existence of the engaging groove It is convenient to define the position of the convex ring.
  • the convex ring by setting the progressive slope on the driving convex ring, when the convex ring is further pushed to move toward the inside of the oil storage tank, the convex ring can be driven to move along the progressive slope, so that the contact pressure block is further moved upward along the oil storage tank.
  • the fixed column moves to realize the separation of the convex ring and the meshing groove, so that the convex ring moves away from the oil storage tank under the action of the restoring force of the compression spring, that is, the complete separation of the convex ring and the contact pressure block is realized, and the convex ring finally moves. until it engages with the limit ring.
  • Fig. 2 is the structural representation of part A in Fig. 1 of this application;
  • Fig. 3 is the structural representation of part B in Fig. 1 of this application;
  • FIG. 4 is a schematic structural diagram of part C in FIG. 3 of the application.
  • FIG. 5 is a schematic structural diagram of part D in FIG. 4 of the application.
  • Fig. 7 is the front view of Fig. 1 of the application.
  • FIG. 8 is a schematic structural diagram of part E in FIG. 7 of the application.
  • FIG. 9 is a schematic structural diagram of part F in FIG. 8 of the application.
  • FIG. 10 is a schematic structural diagram of part G in FIG. 9 of the application.
  • a brushless motor with shaft sealing effect includes a motor body 1, a cover body 2, a motor output shaft 3, a bearing 4, and waterproof sealing grease 5.
  • the motor output shaft 3 passes through the bearing 4 It is rotatably arranged at the output end of the motor body 1, the cover body 2 is covered on the open side of the front end of the motor body 1, and the inner side of the cover body 2 is provided with a bearing cavity 6 for installing the bearing 4, and the cover body 2 is close to the inner side wall of the bearing cavity 6, And the outer side wall of the cover body 2 is provided with an oil storage tank 7, and the waterproof sealing grease 5 is clamped in the oil storage tank 7; the outer oil storage tank 7 of the cover body 2 is slidably telescopically connected with a contact pressure cover 8, and the inner wall of the contact pressure cover 8 is wound.
  • the buckle assembly 10 includes a touch pressure block 10-1 and a fixed column 10-2.
  • the fixed column 10-2 is fixed on the inner wall of the oil storage tank 7
  • the contact pressure block 10-1 is slidably arranged on the fixed column 10-2 through the sliding column 11, and the contact pressure block 10-1 and the outer side wall of the contact pressure cover 8
  • a touch switch 12 is fixed on the bottom wall of the sliding column 11, and the touch switch 12 is electrically connected with the infrared heater 9.
  • An engagement groove 13 is formed in the middle of the touch block 10-1, and the touch block 10- 1.
  • a drive bump 14 is fixed at one end away from the contact pressure cover 8.
  • the cover body 2 is fixed on the end of the motor body 1 by bolts, and a through hole 15 for the motor output shaft 3 to pass through is formed in the center of the cover body 2 and the contact pressure cover 8 .
  • the bearing 4 includes a bearing outer ring 4-1, a bearing inner ring 4-2, and a bearing sealing ring 4-3.
  • the bearing sealing ring 4-3 is arranged between the bearing outer ring 4-1 and the bearing inner ring 4-2.
  • the bearing The outer ring 4-1 is closely matched with the bearing cavity 6, and the bearing inner ring 4-2 is closely matched with the motor output shaft 3.
  • a limit ring 16 is fixed on the end wall of the oil storage tank 7 outside the cover body 2 , and the contact pressure cover 8 is close to the edge of the cover body 2 .
  • the outer side wall is fixed with a convex ring 17 that cooperates with the limit ring 16;
  • the inner wall of the convex ring 17 is provided with a limit groove 18 that matches the limit ring 16, and a compression spring 19 is fixed between the convex ring 17 and the inner wall of the external oil storage tank 7 of the cover body 2.
  • the limit ring 16 is used to align the convex ring 17 For limiting, specifically, the convex ring 17 can be engaged with the limiting ring 16 through the limiting groove 18 .
  • the compression spring 19 can be compressed, and the compressed compression spring 19 can realize the reset of the convex ring 17 and the contact pressure cover 8 .
  • the inner wall of the external oil storage tank 7 of the cover body 2 is provided with a storage slot 20, and a column slot 21 is opened in the storage slot 20.
  • the fixing column 10-2 is fixed in the column slot 21.
  • the existence of the column slot 21 is convenient for the fixing column 10-2.
  • the contact pressure block 10-1 is placed in the storage slot 20, and the existence of the storage slot 20 can facilitate the installation of the contact pressure block 10-1.
  • the bottom outer wall of the fixed column 10-2 is sleeved with a return spring 22, and the two ends of the return spring 22 are respectively fixedly connected with the outer wall of the fixed column 10-2 and the top of the sliding column 11.
  • the side of the contact pressure block 10-1 close to the contact pressure cover 8 is provided with an inclined surface 23, the contact pressure cover 8 can move along the inclined surface 23, the engaging groove 13 is used in conjunction with the convex ring 17, and the existence of the inclined surface 23 facilitates the convex ring 17 to move along the
  • the pressing block 10 - 1 is pushed to move along the fixing column 10 - 2 , and the presence of the engaging groove 13 is convenient for defining the position of the protruding ring 17 .
  • the driving bump 14 is provided with a progressive slope 24, the progressive slope 24 communicates with the engaging groove 13, and the slope of the progressive slope 24 is greater than the slope of the slope 23, when the protruding ring 17 is further pushed to move into the oil storage tank 7 , the convex ring 17 can be driven to move along the progressive slope 24, so that the contact pressure block 10-1 is further moved upward along the fixed column 10-2, so as to realize the separation of the convex ring 17 from the engaging groove 13, so that the pressure spring 19 Under the action of the restoring force, the convex ring 17 moves away from the oil storage tank 7 , that is, the convex ring 17 is completely separated from the contact pressure block 10 - 1 , and the convex ring 17 finally moves to engage with the limit ring 16 .
  • the outer wall of the touch cover 8 is provided with a waterproof membrane, and the existence of the waterproof membrane is beneficial to improve the waterproof effect of the touch cover 8 .
  • the infrared heater 9 When the touch switch 12 on the bottom wall is in contact, the infrared heater 9 is driven to work, and the infrared heater 9 further heats the waterproof sealing grease 5 in the external oil storage tank 7, and the grease is melted by the thermal collision to infiltrate the through hole. In the small gap between 15 and the motor output shaft 3, a sustainable waterproof capability is provided for the motor output shaft 3; when the infrared heater 9 does not need to heat the waterproof sealing grease 5, the contact pressure cover can be further pushed into the oil storage tank 7 8.
  • the convex ring 17 further compresses the compression spring 19 to drive the convex ring 17 to contact the driving bump 14, and when the convex ring 17 moves along the progressive slope 24, it further pushes the contact pressure block 10-1 along the With the movement of the fixing column 10-2, the convex ring 17 is disengaged from the engaging groove 13, and under the action of the restoring force of the compression spring 19, the convex ring 17 and the contact pressure cover 8 move away from the oil storage groove 7, and At this time, the touch block 10-1 moves down along the fixed column 10-2, the touch switch 12 is turned off, the infrared heater 9 stops working, and finally, the touch cover 8 is separated from the buckle assembly 10, and the convex ring 17 moves To cooperate with the limit ring 16 to facilitate the next cycle of work.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present application relates to the technical field of rotating shaft sealing of brushless motors. Disclosed is a brushless motor having a shaft sealing effect. The brushless motor having the shaft sealing effect comprises a motor body, a cover body, a motor output shaft, a bearing, and waterproof sealant grease; the motor output shaft is rotatably arranged at an output end of the motor body by means of the bearing; and the cover body covers an opening side of the front end of the motor body. According to the present application, when a convex ring is in contact with a pressing block on a buckle assembly, an infrared heater is driven to heat and melt the grease, so that the grease is infiltrated into a gap between a through hole and the motor output shaft to achieve an effect of oil sealing; and when the convex ring is separated from the pressing block, the infrared heater stops working. According to the present application, by providing the infrared heater that can heat the waterproof sealant grease, the motor output shaft can be subjected to waterproof protection when the motor does not work, or in the early work preparation stage of the motor, so that full-time protection for the motor can be achieved.

Description

一种具有轴密封效果的无刷电机A brushless motor with shaft sealing effect
相关申请的交叉参考CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求于2021年01月05日提交中国专利局，申请号为202110009006.5，名称为“一种具有轴密封效果的无刷电机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number 202110009006.5 and the title of "A Brushless Motor with Shaft Sealing Effect", which was filed with the China Patent Office on January 5, 2021, the entire contents of which are incorporated herein by reference Applying.
技术领域technical field
本申请涉及无刷电机旋转轴密封技术领域，尤其涉及一种具有轴密封效果的无刷电机。The present application relates to the technical field of brushless motor rotary shaft sealing, and in particular, to a brushless motor with shaft sealing effect.
背景技术Background technique
随着人们的生活水平不断提高，越来越多的人开始玩起了电动遥控车、电动遥控船以及电动模型飞机，其中，稀土永磁无刷电机有宽调速、小体积、高效率和稳态转速误差小等特点，是电动遥控车模型行业的首选。现有无刷电机应用于模型领域为高功率，高转速，体积小，重量轻，效率高的应用场合，使得电机使用寿命很短，而电机轴承使用寿命即为电机使用寿命，特别是在环境恶劣的应用，比如无刷电机应用于车模在沙滩海水，山地泥水中短时泡水工作，电机进水后轴承很快损坏，严重影响电机使用寿命。With the continuous improvement of people's living standards, more and more people have begun to play with electric remote control cars, electric remote control boats and electric model airplanes. Among them, rare earth permanent magnet brushless motors have wide speed regulation, small size, high efficiency and The steady-state speed error is small and other characteristics, it is the first choice in the electric remote control car model industry. The existing brushless motor is used in the application of high power, high speed, small size, light weight and high efficiency in the model field, so that the service life of the motor is very short, and the service life of the motor bearing is the service life of the motor, especially in the environment In harsh applications, such as brushless motors used in car models in beach seawater, mountain muddy water for a short time, the bearings of the motor are quickly damaged after water enters, which seriously affects the service life of the motor.
现有无刷电机输出轴防水都是使用旋转密封圈(油封)、橡胶圈等外部防水密封件防水，需要增加额外的零件成本；装配这些外部防水密封件需要在电机上预留装配空间，增加电机长度，占用电机尺寸；而且防水密封件都是依靠与电机输出轴接触式防水和使用接触式防水轴承防水，接触即意味着会有摩擦，会增加电机空载电流，损失一部分电机效率，且高转速电机接触式防水摩擦很容易使得防水密封件发热失效，接触式防水轴承也是如此，电机高速转动，防水轴承泡水后很容易防水失效；而模型行业电机输出轴装配基本都是与轴承内圈间隙配合装配，这就导致电机不做防水处理，水很容易从电机输出轴与轴承内圈的缝隙流进电机内部。因此，现有技术产生了一种通过设置防水密封润滑脂，电机输出轴在转动时产生的热量造成密封润滑脂受热膨胀融化，从而为 电机输出轴提供防水的效果。但是现有技术的这种做法只有在电机工作的过程中才可实现油密封的效果，而在电机不工作无法实现上述轴密封的效果，此外，无论是电机工作产生的热量传递到密封润滑脂，还是密封润滑脂受热膨胀融化，都需要一定的时间，因此在该段时间内，并无法实现对电机输出轴进行有效的防水。The existing brushless motor output shaft is waterproofed by external waterproof seals such as rotary seals (oil seals) and rubber rings, which requires additional cost of parts; assembling these external waterproof seals requires reserving assembly space on the motor, increasing The length of the motor occupies the size of the motor; and the waterproof seals rely on the contact type waterproofing with the motor output shaft and the contact type waterproof bearing waterproofing, the contact means that there will be friction, which will increase the no-load current of the motor and lose part of the motor efficiency, and The contact type waterproof friction of the high-speed motor can easily cause the waterproof seal to fail due to heat, and the same is true for the contact type waterproof bearing. The motor rotates at a high speed, and the waterproof bearing is prone to waterproof failure after soaking in water; and the motor output shaft assembly in the model industry is basically connected with the bearing. The ring clearance fit assembly, which results in the motor not being waterproofed, and water can easily flow into the motor from the gap between the motor output shaft and the inner ring of the bearing. Therefore, in the prior art, a waterproof sealing grease is provided, and the heat generated when the motor output shaft rotates causes the sealing grease to expand and melt due to thermal expansion, thereby providing a waterproof effect to the motor output shaft. However, in the prior art, the oil sealing effect can only be achieved when the motor is working, and the above-mentioned shaft sealing effect cannot be achieved when the motor is not working. In addition, the heat generated by the motor operation is transferred to the sealing grease. , or the sealing grease is heated and expanded and melted, it takes a certain time, so within this period of time, it is impossible to effectively waterproof the motor output shaft.
申请内容Application content
本申请的目的是为了解决现有技术中只有在电机工作的过程中才可实现油密封的效果，而在电机不工作无法实现上述轴密封的效果，此外，无论是电机工作产生的热量传递到密封润滑脂，还是密封润滑脂受热膨胀融化，都需要一定的时间，因此在该段时间内，并无法实现对电机输出轴进行有效的防水问题，而提出的一种具有轴密封效果的无刷电机。The purpose of this application is to solve the problem that in the prior art, the oil sealing effect can only be achieved when the motor is working, and the above-mentioned shaft sealing effect cannot be achieved when the motor is not working. It takes a certain amount of time for the sealing grease or the sealing grease to expand and melt when heated. Therefore, during this period of time, the problem of effectively waterproofing the motor output shaft cannot be achieved. motor.
为了实现上述目的，本申请采用了如下技术方案：In order to achieve the above object, the application adopts the following technical solutions:
一种具有轴密封效果的无刷电机，包括电机本体、盖体、电机输出轴、轴承、防水密封润滑脂，所述电机输出轴通过轴承转动设置在电机本体的输出端，所述盖体盖合在电机本体前端的开口侧，所述盖体内侧开设有供轴承安装的轴承腔，所述盖体靠近轴承腔的内侧壁、以及盖体外侧壁均开设有储油槽，所述防水密封润滑脂卡合在储油槽内；所述盖体外部储油槽内滑动伸缩连接有触压盖，所述触压盖的内壁缠绕有螺旋状的红外加热器，所述盖体外部储油槽的内壁滑动连接有与触压盖匹配的卡扣组件，所述卡扣组件包括触压块、固定柱，所述固定柱固设在储油槽的内壁，所述触压块通过滑柱滑动设置在固定柱上，且所述触压块与触压盖的外侧壁相匹配，所述滑柱的底壁固设有触控开关，且所述触控开关与红外加热器电性相连，所述触压块的中部开设有啮合槽，所述触压块远离触压盖的一端固设有驱动凸块。A brushless motor with shaft sealing effect includes a motor body, a cover body, a motor output shaft, a bearing, and waterproof sealing grease. The motor output shaft is rotated and arranged at the output end of the motor body through the bearing. It is closed on the open side of the front end of the motor body. The inside of the cover is provided with a bearing cavity for bearing installation. The grease is clamped in the oil storage tank; a contact pressure cover is slidably and telescopically connected in the outer oil storage tank of the cover body, the inner wall of the contact pressure cover is wound with a spiral infrared heater, and the inner wall of the outer oil storage tank of the cover body slides A snap assembly matched with the contact cover is connected, the snap component includes a contact block and a fixing column, the fixed column is fixed on the inner wall of the oil storage tank, and the contact block is slidably arranged on the fixed column through the sliding column and the touch block matches the outer side wall of the touch cover, a touch switch is fixed on the bottom wall of the sliding column, and the touch switch is electrically connected with the infrared heater, and the touch switch is electrically connected to the infrared heater. An engaging groove is formed in the middle of the block, and a driving bump is fixed at one end of the contact pressure block away from the contact pressure cover.
优选的，所述盖体具体通过螺栓固设在电机本体的端部，所述盖体、触压盖的圆心位置开设有供电机输出轴穿过的贯通孔。Preferably, the cover body is specifically fixed on the end of the motor body by bolts, and a through hole for passing the output shaft of the motor is formed at the center of the cover body and the contact pressure cover.
优选的，所述轴承包括轴承外圈、轴承内圈、以及轴承密封圈，所述轴承密封圈设置在轴承外圈和轴承内圈之间，所述轴承外圈与轴承腔紧密配合，所述轴承内圈与电机输出轴紧密配合。Preferably, the bearing includes an outer bearing ring, an inner bearing ring, and a bearing sealing ring, the bearing sealing ring is disposed between the bearing outer ring and the bearing inner ring, the bearing outer ring is tightly fitted with the bearing cavity, and the bearing outer ring is tightly fitted with the bearing cavity. The inner ring of the bearing fits closely with the output shaft of the motor.
优选的，所述盖体外部储油槽的端壁固设有限位环，所述触压盖靠近盖体的外侧壁固设有与限位环配合使用的凸环。Preferably, a limit ring is fixed on the end wall of the outer oil storage tank of the cover body, and a convex ring used in cooperation with the limit ring is fixed on the outer side wall of the contact pressure cover close to the cover body.
优选的，所述凸环内壁开设有与限位环相匹配的限位槽，所述凸环 与盖体外部储油槽的内壁之间固设有压簧。Preferably, the inner wall of the convex ring is provided with a limit groove matching the limit ring, and a compression spring is fixed between the convex ring and the inner wall of the oil storage tank outside the cover body.
优选的，所述盖体外部储油槽内壁开设有置物槽，所述置物槽内开设有柱槽，所述固定柱固设在柱槽内，所述触压块置于置物槽内。Preferably, a storage groove is formed on the inner wall of the external oil storage tank of the cover body, a column groove is formed in the storage groove, the fixing column is fixed in the column groove, and the contact pressure block is placed in the storage groove.
优选的，所述固定柱的底端外壁套设有复位弹簧，所述复位弹簧的两端分别与固定柱外壁、滑柱顶部固定相连。Preferably, a return spring is sleeved on the outer wall of the bottom end of the fixing column, and both ends of the return spring are fixedly connected to the outer wall of the fixing column and the top of the sliding column respectively.
优选的，所述触压块靠近触压盖的一侧设有斜面，所述触压盖可沿着斜面移动，所述啮合槽与凸环配合使用。Preferably, a side of the contact pressure block close to the contact pressure cover is provided with an inclined surface, the contact pressure cover can move along the inclined surface, and the engagement groove is used in cooperation with the convex ring.
优选的，所述驱动凸块上设有递进斜面，所述递进斜面与啮合槽相通，且所述递进斜面的斜角大于斜面的斜角。Preferably, the drive projection is provided with a progressive slope, the progressive slope communicates with the engaging groove, and the slope angle of the progressive slope is greater than the slope angle of the slope.
优选的，所述触压盖的外壁设有防水膜。Preferably, the outer wall of the touch cover is provided with a waterproof membrane.
与现有技术相比，本申请提供了一种具有轴密封效果的无刷电机，具备以下有益效果：Compared with the prior art, the present application provides a brushless motor with shaft sealing effect, which has the following beneficial effects:
1、该申请中，在凸环同卡扣组件上的触压块接触时，带动红外加热器对润滑脂进行加热融化，以使得润滑脂浸润到贯通孔与电机输出轴的间隙内，达到油密封的效果；并在凸环同触压块分离时，红外加热器停止工作；本申请通过设置可对防水密封润滑脂进行加热的红外加热器，可在电机不工作时，或是电机前期准备工作阶段对电机输出轴进行防水保护，从而可实现对电机全时段的保护。1. In this application, when the convex ring is in contact with the contact pressure block on the buckle assembly, the infrared heater is driven to heat and melt the grease, so that the grease is infiltrated into the gap between the through hole and the motor output shaft and reaches the oil level. and when the convex ring is separated from the contact pressure block, the infrared heater stops working; this application is provided with an infrared heater that can heat the waterproof sealing grease, so that the motor can be prepared when the motor is not working or in the early stage of the motor. During the working phase, the motor output shaft is protected against water, so that the protection of the motor can be realized at all times.
2、该申请中，通过在盖体外部储油槽的端壁固设有限位环，且在触压盖上设有与限位环相匹配的凸环，利用限位环对凸环进行限位，具体是凸环可通过限位槽同限位环卡合；凸环在向储油槽内滑动时可对压簧进行压缩，受压缩的压簧可实现凸环以及触压盖的复位。2. In this application, a limit ring is fixed on the end wall of the oil storage tank outside the cover body, and a convex ring matching the limit ring is arranged on the contact pressure cover, and the limit ring is used to limit the position of the convex ring. Specifically, the convex ring can be engaged with the limit ring through the limit groove; the convex ring can compress the compression spring when sliding into the oil storage groove, and the compressed compression spring can realize the reset of the convex ring and the contact pressure cover.
3、该申请中，通过柱槽的存在便于对固定柱进行安装，而置物槽的存在可方便触压块的安装，凸环在向储油槽内移动时，带动触压块沿着固定柱向上移动，以带动固定柱同触控开关接触，在此同时对复位弹簧进行压缩；而当凸环同触压块分离时，在复位弹簧恢复力的作用下，实现触压块的向下移动，以实现触压块的复位。3. In this application, the presence of the column groove facilitates the installation of the fixed column, and the existence of the storage groove facilitates the installation of the contact pressure block. When the convex ring moves into the oil storage tank, the contact pressure block is driven upward along the fixed column. move to drive the fixed column to contact the touch switch, and at the same time compress the return spring; and when the convex ring is separated from the contact block, under the action of the restoring force of the return spring, the contact block moves downwards. In order to realize the reset of the touch block.
4、该申请中，通过在触压块靠近触压盖的一侧设有斜面，斜面的存在便于凸环在沿着斜面移动时，推动触压块沿着固定柱移动，而啮合槽的存在便于对凸环的位置进行限定。4. In this application, the inclined surface is provided on the side of the contact pressure block close to the contact pressure cover, and the existence of the inclined surface facilitates the convex ring to push the contact pressure block to move along the fixed column when moving along the inclined surface, and the existence of the engaging groove It is convenient to define the position of the convex ring.
5、该申请中，通过在驱动凸环上设置递进斜面，在进一步推动凸环向储油槽内部移动时，可带动凸环沿着递进斜面移动，以使得触压块进一步的向上沿着固定柱移动，以实现凸环同啮合槽的分离，从而在压簧恢复力的作用下实现凸环向远离储油槽的方向移动，即实现凸环同触压块的彻底分离，凸环最终移动至同限位环啮合。5. In this application, by setting the progressive slope on the driving convex ring, when the convex ring is further pushed to move toward the inside of the oil storage tank, the convex ring can be driven to move along the progressive slope, so that the contact pressure block is further moved upward along the oil storage tank. The fixed column moves to realize the separation of the convex ring and the meshing groove, so that the convex ring moves away from the oil storage tank under the action of the restoring force of the compression spring, that is, the complete separation of the convex ring and the contact pressure block is realized, and the convex ring finally moves. until it engages with the limit ring.
附图说明Description of drawings
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute limitations of the embodiments, and elements with the same reference numerals in the drawings are denoted as similar elements, Unless otherwise stated, the figures in the accompanying drawings do not constitute a scale limitation.
图1为本申请的剖切示图；1 is a cutaway view of the application;
图2为本申请图1中A部分的结构示意图；Fig. 2 is the structural representation of part A in Fig. 1 of this application;
图3为本申请图1中B部分的结构示意图；Fig. 3 is the structural representation of part B in Fig. 1 of this application;
图4为本申请图3中C部分的结构示意图；FIG. 4 is a schematic structural diagram of part C in FIG. 3 of the application;
图5为本申请图4中D部分的结构示意图；5 is a schematic structural diagram of part D in FIG. 4 of the application;
图6为本申请的整体结构示意图；6 is a schematic diagram of the overall structure of the application;
图7为本申请图1的正视图；Fig. 7 is the front view of Fig. 1 of the application;
图8为本申请图7中E部分的结构示意图；FIG. 8 is a schematic structural diagram of part E in FIG. 7 of the application;
图9为本申请图8中F部分的结构示意图；FIG. 9 is a schematic structural diagram of part F in FIG. 8 of the application;
图10为本申请图9中G部分的结构示意图。FIG. 10 is a schematic structural diagram of part G in FIG. 9 of the application.
图中：1、电机本体；2、盖体；3、电机输出轴；4、轴承；4-1、轴承外圈；4-2、轴承内圈；4-3、轴承密封圈；5、防水密封润滑脂；6、轴承腔；7、储油槽；8、触压盖；9、红外加热器；10、卡扣组件；10-1、触压块；10-2、固定柱；11、滑柱；12、触控开关；13、啮合槽；14、驱动凸块；15、贯通孔；16、限位环；17、凸环；18、限位槽；19、压簧；20、置物槽；21、柱槽；22、复位弹簧；23、斜面；24、递进斜面。In the figure: 1. Motor body; 2. Cover body; 3. Motor output shaft; 4. Bearing; 4-1, Bearing outer ring; 4-2, Bearing inner ring; 4-3, Bearing sealing ring; 5. Waterproof Sealing grease; 6. Bearing cavity; 7. Oil storage tank; 8. Contact pressure cover; 9. Infrared heater; 10. Buckle assembly; 10-1, Contact pressure block; Column; 12. Touch switch; 13. Engagement groove; 14. Drive bump; 15. Through hole; 16. Limit ring; 17. Convex ring; 18. Limit groove; ; 21, column groove; 22, return spring; 23, slope; 24, progressive slope.
具体实施方式Detailed ways
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments.
在本申请的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基 于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of this application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present application.
实施例1：Example 1:
参照图1-3、图6，一种具有轴密封效果的无刷电机，包括电机本体1、盖体2、电机输出轴3、轴承4、防水密封润滑脂5，电机输出轴3通过轴承4转动设置在电机本体1的输出端，盖体2盖合在电机本体1前端的开口侧，盖体2内侧开设有供轴承4安装的轴承腔6，盖体2靠近轴承腔6的内侧壁、以及盖体2外侧壁均开设有储油槽7，防水密封润滑脂5卡合在储油槽7内；盖体2外部储油槽7内滑动伸缩连接有触压盖8，触压盖8的内壁缠绕有螺旋状的红外加热器9，盖体2外部储油槽7的内壁滑动连接有与触压盖8匹配的卡扣组件10，卡扣组件10包括触压块10-1、固定柱10-2，固定柱10-2固设在储油槽7的内壁，触压块10-1通过滑柱11滑动设置在固定柱10-2上，且触压块10-1与触压盖8的外侧壁相匹配，滑柱11的底壁固设有触控开关12，且触控开关12与红外加热器9电性相连，触压块10-1的中部开设有啮合槽13，触压块10-1远离触压盖8的一端固设有驱动凸块14。Referring to Figures 1-3 and 6, a brushless motor with shaft sealing effect includes a motor body 1, a cover body 2, a motor output shaft 3, a bearing 4, and waterproof sealing grease 5. The motor output shaft 3 passes through the bearing 4 It is rotatably arranged at the output end of the motor body 1, the cover body 2 is covered on the open side of the front end of the motor body 1, and the inner side of the cover body 2 is provided with a bearing cavity 6 for installing the bearing 4, and the cover body 2 is close to the inner side wall of the bearing cavity 6, And the outer side wall of the cover body 2 is provided with an oil storage tank 7, and the waterproof sealing grease 5 is clamped in the oil storage tank 7; the outer oil storage tank 7 of the cover body 2 is slidably telescopically connected with a contact pressure cover 8, and the inner wall of the contact pressure cover 8 is wound. There is a spiral infrared heater 9, and the inner wall of the outer oil storage tank 7 of the cover body 2 is slidably connected with a buckle assembly 10 matching the touch cover 8. The buckle assembly 10 includes a touch pressure block 10-1 and a fixed column 10-2. , the fixed column 10-2 is fixed on the inner wall of the oil storage tank 7, the contact pressure block 10-1 is slidably arranged on the fixed column 10-2 through the sliding column 11, and the contact pressure block 10-1 and the outer side wall of the contact pressure cover 8 Matching, a touch switch 12 is fixed on the bottom wall of the sliding column 11, and the touch switch 12 is electrically connected with the infrared heater 9. An engagement groove 13 is formed in the middle of the touch block 10-1, and the touch block 10- 1. A drive bump 14 is fixed at one end away from the contact pressure cover 8.
盖体2具体通过螺栓固设在电机本体1的端部，盖体2、触压盖8的圆心位置开设有供电机输出轴3穿过的贯通孔15。Specifically, the cover body 2 is fixed on the end of the motor body 1 by bolts, and a through hole 15 for the motor output shaft 3 to pass through is formed in the center of the cover body 2 and the contact pressure cover 8 .
轴承4包括轴承外圈4-1、轴承内圈4-2、以及轴承密封圈4-3，轴承密封圈4-3设置在轴承外圈4-1和轴承内圈4-2之间，轴承外圈4-1与轴承腔6紧密配合，轴承内圈4-2与电机输出轴3紧密配合。The bearing 4 includes a bearing outer ring 4-1, a bearing inner ring 4-2, and a bearing sealing ring 4-3. The bearing sealing ring 4-3 is arranged between the bearing outer ring 4-1 and the bearing inner ring 4-2. The bearing The outer ring 4-1 is closely matched with the bearing cavity 6, and the bearing inner ring 4-2 is closely matched with the motor output shaft 3.
实施例2：Example 2:
参照图4、图5、图7-10，与实施例1基本相同，更进一步的是，盖体2外部储油槽7的端壁固设有限位环16，触压盖8靠近盖体2的外侧壁固设有与限位环16配合使用的凸环17；Referring to FIGS. 4 , 5 , and 7-10 , it is basically the same as Embodiment 1, and further, a limit ring 16 is fixed on the end wall of the oil storage tank 7 outside the cover body 2 , and the contact pressure cover 8 is close to the edge of the cover body 2 . The outer side wall is fixed with a convex ring 17 that cooperates with the limit ring 16;
凸环17内壁开设有与限位环16相匹配的限位槽18，凸环17与盖体2外部储油槽7的内壁之间固设有压簧19，利用限位环16对凸环17进行限位，具体是凸环17可通过限位槽18同限位环16卡合。The inner wall of the convex ring 17 is provided with a limit groove 18 that matches the limit ring 16, and a compression spring 19 is fixed between the convex ring 17 and the inner wall of the external oil storage tank 7 of the cover body 2. The limit ring 16 is used to align the convex ring 17 For limiting, specifically, the convex ring 17 can be engaged with the limiting ring 16 through the limiting groove 18 .
凸环17在向储油槽7内滑动时可对压簧19进行压缩，受压缩的压簧19可实现凸环17以及触压盖8的复位。When the convex ring 17 slides into the oil storage tank 7 , the compression spring 19 can be compressed, and the compressed compression spring 19 can realize the reset of the convex ring 17 and the contact pressure cover 8 .
盖体2外部储油槽7内壁开设有置物槽20，置物槽20内开设有柱槽21，固定柱10-2固设在柱槽21内，柱槽21的存在便于对固定柱10-2进行安装，触压块10-1置于置物槽20内，置物槽20的存在可方便触压块10-1的安装。The inner wall of the external oil storage tank 7 of the cover body 2 is provided with a storage slot 20, and a column slot 21 is opened in the storage slot 20. The fixing column 10-2 is fixed in the column slot 21. The existence of the column slot 21 is convenient for the fixing column 10-2. For installation, the contact pressure block 10-1 is placed in the storage slot 20, and the existence of the storage slot 20 can facilitate the installation of the contact pressure block 10-1.
固定柱10-2的底端外壁套设有复位弹簧22，复位弹簧22的两端分别与固定柱10-2外壁、滑柱11顶部固定相连，凸环17在向储油槽7内移动时，带动触压块10-1沿着固定柱10-2向上移动，以带动固定柱10-2同触控开关12接触，以控制红外加热器9工作，在此同时对复位弹簧22进行压缩；而当凸环17同触压块10-1分离时，在复位弹簧22恢复力的作用下，实现触压块10-1的向下移动，以实现触压块10-1的复位，红外加热器9停止工作。The bottom outer wall of the fixed column 10-2 is sleeved with a return spring 22, and the two ends of the return spring 22 are respectively fixedly connected with the outer wall of the fixed column 10-2 and the top of the sliding column 11. When the convex ring 17 moves into the oil storage tank 7, Drive the contact pressure block 10-1 to move up along the fixed column 10-2, so as to drive the fixed column 10-2 to contact the touch switch 12, so as to control the infrared heater 9 to work, and at the same time compress the return spring 22; When the convex ring 17 is separated from the contact pressure block 10-1, under the action of the restoring force of the reset spring 22, the contact pressure block 10-1 is moved downward to realize the reset of the contact pressure block 10-1, and the infrared heater 9 stops working.
触压块10-1靠近触压盖8的一侧设有斜面23，触压盖8可沿着斜面23移动，啮合槽13与凸环17配合使用，斜面23的存在便于凸环17在沿着斜面23移动时，推动触压块10-1沿着固定柱10-2移动，而啮合槽13的存在便于对凸环17的位置进行限定。The side of the contact pressure block 10-1 close to the contact pressure cover 8 is provided with an inclined surface 23, the contact pressure cover 8 can move along the inclined surface 23, the engaging groove 13 is used in conjunction with the convex ring 17, and the existence of the inclined surface 23 facilitates the convex ring 17 to move along the When moving against the inclined surface 23 , the pressing block 10 - 1 is pushed to move along the fixing column 10 - 2 , and the presence of the engaging groove 13 is convenient for defining the position of the protruding ring 17 .
驱动凸块14上设有递进斜面24，递进斜面24与啮合槽13相通，且递进斜面24的斜角大于斜面23的斜角，在进一步推动凸环17向储油槽7内部移动时，可带动凸环17沿着递进斜面24移动，以使得触压块10-1进一步的向上沿着固定柱10-2移动，以实现凸环17同啮合槽13的分离，从而在压簧19恢复力的作用下实现凸环17向远离储油槽7的方向移动，即实现凸环17同触压块10-1的彻底分离，凸环17最终移动至同限位环16啮合。The driving bump 14 is provided with a progressive slope 24, the progressive slope 24 communicates with the engaging groove 13, and the slope of the progressive slope 24 is greater than the slope of the slope 23, when the protruding ring 17 is further pushed to move into the oil storage tank 7 , the convex ring 17 can be driven to move along the progressive slope 24, so that the contact pressure block 10-1 is further moved upward along the fixed column 10-2, so as to realize the separation of the convex ring 17 from the engaging groove 13, so that the pressure spring 19 Under the action of the restoring force, the convex ring 17 moves away from the oil storage tank 7 , that is, the convex ring 17 is completely separated from the contact pressure block 10 - 1 , and the convex ring 17 finally moves to engage with the limit ring 16 .
触压盖8的外壁设有防水膜，防水膜的存在有利于提高触压盖8的防水效果。The outer wall of the touch cover 8 is provided with a waterproof membrane, and the existence of the waterproof membrane is beneficial to improve the waterproof effect of the touch cover 8 .
工作原理：使用时，通过推动触压盖8在外部储油槽7内滑动，以将触压盖8推至储油槽7内部，触压盖8进而带动卡扣组件10工作，具体是，触压盖8外壁的凸环17同触压块10-1接触，凸环17受到推动沿着斜面23移动，从而推动触压块10-1沿着固定柱10-2移动，凸环17同时对压簧19进行压缩，在凸环17移动至啮合槽13内时实现对凸环17以及触压盖8的固定，与此同时，触压块10-1会带动固定柱10-2同滑柱11底壁上的触控开关12相接触时，带动红外加热器9工作，红外加热器9进而对外部储油槽7内的防水密封润滑脂5进行加热，润滑脂受热碰撞融化，以浸润到贯通孔15与电机输出轴3的微小间隙中，为电机输出轴3提供可持续的防水能力；待无需红外加热器9对防水密封润滑脂5进行加热时，可进一步向储油槽7内推动触压盖8，凸环17对压簧19做进一步的压缩，以带动凸环17同驱动凸块14接触，并在凸环17沿着递进斜面24移动时，进一步的推动触压块10-1沿着固定柱10-2移动，以使得凸环17从啮合槽13内脱离，并在压簧19恢复力的作用下，使得凸环17以及触压盖8向远离储油槽7的方向移动，而 此时的触压块10-1沿着固定柱10-2向下移动，触控开关12关闭，红外加热器9停止工作，最终，触压盖8同卡扣组件10分离，凸环17移动至同限位环16配合，以便于下一个循环工作的进行。Working principle: When in use, push the contact pressure cover 8 to slide in the external oil storage tank 7 to push the contact pressure cover 8 into the oil storage tank 7, and the contact pressure cover 8 then drives the buckle assembly 10 to work. The convex ring 17 on the outer wall of the cover 8 is in contact with the contact pressure block 10-1, and the convex ring 17 is pushed to move along the inclined surface 23, thereby pushing the contact pressure block 10-1 to move along the fixed column 10-2, and the convex ring 17 presses against it at the same time The spring 19 is compressed, and when the convex ring 17 moves into the engaging groove 13, the convex ring 17 and the contact pressure cover 8 are fixed. At the same time, the contact pressure block 10-1 will drive the fixed column 10-2 and the sliding column 11. When the touch switch 12 on the bottom wall is in contact, the infrared heater 9 is driven to work, and the infrared heater 9 further heats the waterproof sealing grease 5 in the external oil storage tank 7, and the grease is melted by the thermal collision to infiltrate the through hole. In the small gap between 15 and the motor output shaft 3, a sustainable waterproof capability is provided for the motor output shaft 3; when the infrared heater 9 does not need to heat the waterproof sealing grease 5, the contact pressure cover can be further pushed into the oil storage tank 7 8. The convex ring 17 further compresses the compression spring 19 to drive the convex ring 17 to contact the driving bump 14, and when the convex ring 17 moves along the progressive slope 24, it further pushes the contact pressure block 10-1 along the With the movement of the fixing column 10-2, the convex ring 17 is disengaged from the engaging groove 13, and under the action of the restoring force of the compression spring 19, the convex ring 17 and the contact pressure cover 8 move away from the oil storage groove 7, and At this time, the touch block 10-1 moves down along the fixed column 10-2, the touch switch 12 is turned off, the infrared heater 9 stops working, and finally, the touch cover 8 is separated from the buckle assembly 10, and the convex ring 17 moves To cooperate with the limit ring 16 to facilitate the next cycle of work.
以上所述，仅为本申请较佳的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，根据本申请的技术方案及其申请构思加以等同替换或改变，都应涵盖在本申请的保护范围之内。The above are only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited to this. Equivalent replacements or changes to its application concept shall be covered within the protection scope of the present application.

Claims (10)

  1. 一种具有轴密封效果的无刷电机，包括电机本体(1)、盖体(2)、电机输出轴(3)、轴承(4)、防水密封润滑脂(5)，所述电机输出轴(3)通过轴承(4)转动设置在电机本体(1)的输出端，所述盖体(2)盖合在电机本体(1)前端的开口侧，所述盖体(2)内侧开设有供轴承(4)安装的轴承腔(6)，其特征在于，所述盖体(2)靠近轴承腔(6)的内侧壁、以及盖体(2)外侧壁均开设有储油槽(7)，所述防水密封润滑脂(5)卡合在储油槽(7)内；所述盖体(2)外部储油槽(7)内滑动伸缩连接有触压盖(8)，所述触压盖(8)的内壁缠绕有螺旋状的红外加热器(9)，所述盖体(2)外部储油槽(7)的内壁滑动连接有与触压盖(8)匹配的卡扣组件(10)，所述卡扣组件(10)包括触压块(10-1)、固定柱(10-2)，所述固定柱(10-2)固设在储油槽(7)的内壁，所述触压块(10-1)通过滑柱(11)滑动设置在固定柱(10-2)上，且所述触压块(10-1)与触压盖(8)的外侧壁相匹配，所述滑柱(11)的底壁固设有触控开关(12)，且所述触控开关(12)与红外加热器(9)电性相连，所述触压块(10-1)的中部开设有啮合槽(13)，所述触压块(10-1)远离触压盖(8)的一端固设有驱动凸块(14)。A brushless motor with shaft sealing effect, comprising a motor body (1), a cover body (2), a motor output shaft (3), a bearing (4), a waterproof sealing grease (5), the motor output shaft ( 3) The bearing (4) is rotatably arranged on the output end of the motor body (1), the cover body (2) is closed on the opening side of the front end of the motor body (1), and the inner side of the cover body (2) is provided with a The bearing cavity (6) in which the bearing (4) is installed is characterized in that an oil storage groove (7) is provided on the inner side wall of the cover body (2) close to the bearing cavity (6) and the outer side wall of the cover body (2), The waterproof sealing grease (5) is clamped in the oil storage tank (7); a contact pressure cover (8) is slidably and telescopically connected in the outer oil storage tank (7) of the cover body (2), and the contact pressure cover ( The inner wall of 8) is wound with a spiral infrared heater (9), and the inner wall of the outer oil storage tank (7) of the cover body (2) is slidably connected with a snap-fit assembly (10) matching the touch cover (8), The snap assembly (10) includes a contact pressure block (10-1) and a fixing column (10-2), the fixing column (10-2) is fixed on the inner wall of the oil storage tank (7), and the contact pressure The block (10-1) is slidably arranged on the fixed column (10-2) through the sliding column (11), and the contact pressure block (10-1) is matched with the outer side wall of the contact pressure cover (8). A touch switch (12) is fixed on the bottom wall of the sliding column (11), and the touch switch (12) is electrically connected with the infrared heater (9). An engaging groove (13) is provided, and a driving protrusion (14) is fixed at one end of the contact pressure block (10-1) away from the contact pressure cover (8).
  2. 根据权利要求1所述的一种具有轴密封效果的无刷电机，其特征在于，所述盖体(2)具体通过螺栓固设在电机本体(1)的端部，所述盖体(2)、触压盖(8)的圆心位置开设有供电机输出轴(3)穿过的贯通孔(15)。A brushless motor with a shaft sealing effect according to claim 1, characterized in that the cover body (2) is specifically fixed on the end of the motor body (1) by means of bolts, and the cover body (2) ), a through hole (15) through which the output shaft (3) of the motor passes through is opened at the center of the contact pressure cover (8).
  3. 根据权利要求1所述的一种具有轴密封效果的无刷电机，其特征在于，所述轴承(4)包括轴承外圈(4-1)、轴承内圈(4-2)、以及轴承密封圈(4-3)，所述轴承密封圈(4-3)设置在轴承外圈(4-1)和轴承内圈(4-2)之间，所述轴承外圈(4-1)与轴承腔(6)紧密配合，所述轴承内圈(4-2)与电机输出轴(3)紧密配合。The brushless motor with shaft sealing effect according to claim 1, wherein the bearing (4) comprises an outer bearing ring (4-1), an inner bearing ring (4-2), and a bearing seal ring (4-3), the bearing sealing ring (4-3) is arranged between the bearing outer ring (4-1) and the bearing inner ring (4-2), and the bearing outer ring (4-1) is connected to the bearing outer ring (4-1). The bearing cavity (6) is closely matched, and the bearing inner ring (4-2) is closely matched with the motor output shaft (3).
  4. 根据权利要求1所述的一种具有轴密封效果的无刷电机，其特征在于，所述盖体(2)外部储油槽(7)的端壁固设有限位环(16)，所述触压盖(8)靠近盖体(2)的外侧壁固设有与限位环(16)配合使用的凸环(17)。The brushless motor with shaft sealing effect according to claim 1, characterized in that a limit ring (16) is fixed on the end wall of the outer oil storage tank (7) of the cover body (2), and the contact A convex ring (17) used in cooperation with the limiting ring (16) is fixedly fixed on the outer side wall of the press cover (8) close to the cover body (2).
  5. 根据权利要求4所述的一种具有轴密封效果的无刷电机，其特征在于，所述凸环(17)内壁开设有与限位环(16)相匹配的限位槽(18)，所述凸环(17)与盖体(2)外部储油槽(7)的内壁之间固设有压簧(19)。A brushless motor with a shaft sealing effect according to claim 4, characterized in that a limit groove (18) matching the limit ring (16) is formed on the inner wall of the convex ring (17), so A compression spring (19) is fixed between the convex ring (17) and the inner wall of the outer oil storage tank (7) of the cover body (2).
  6. 根据权利要求5所述的一种具有轴密封效果的无刷电机，其特征在于，所述盖体(2)外部储油槽(7)内壁开设有置物槽(20)，所述置物槽(20)内开设有柱槽(21)，所述固定柱(10-2)固设在柱槽(21)内，所述触压块(10-1)置于置物槽(20)内。The brushless motor with shaft sealing effect according to claim 5, characterized in that a storage slot (20) is opened on the inner wall of the outer oil storage tank (7) of the cover (2), and the storage slot (20) ) is provided with a column groove (21), the fixing column (10-2) is fixed in the column groove (21), and the contact pressure block (10-1) is placed in the storage groove (20).
  7. 根据权利要求6所述的一种具有轴密封效果的无刷电机，其特征在于，所述固定柱(10-2)的底端外壁套设有复位弹簧(22)，所述复位弹簧(22)的两端分别与固定柱(10-2)外壁、滑柱(11)顶部固定相连。The brushless motor with shaft sealing effect according to claim 6, characterized in that a return spring (22) is sleeved on the outer wall of the bottom end of the fixing column (10-2), and the return spring (22) ) are respectively fixedly connected to the outer wall of the fixing column (10-2) and the top of the sliding column (11).
  8. 根据权利要求7所述的一种具有轴密封效果的无刷电机，其特征在于，所述触压块(10-1)靠近触压盖(8)的一侧设有斜面(23)，所述触压盖(8)可沿着斜面(23)移动，所述啮合槽(13)与凸环(17)配合使用。The brushless motor with shaft sealing effect according to claim 7, characterized in that a slope (23) is provided on the side of the contact pressure block (10-1) close to the contact pressure cover (8), so The pressing cover (8) can move along the inclined plane (23), and the engaging groove (13) is used in cooperation with the convex ring (17).
  9. 根据权利要求8所述的一种具有轴密封效果的无刷电机，其特征在于，所述驱动凸块(14)上设有递进斜面(24)，所述递进斜面(24)与啮合槽(13)相通，且所述递进斜面(24)的斜角大于斜面(23)的斜角。A brushless motor with a shaft sealing effect according to claim 8, characterized in that, a progressive slope (24) is provided on the drive projection (14), and the progressive slope (24) engages with the The grooves (13) communicate with each other, and the inclined angle of the progressive inclined surface (24) is larger than that of the inclined surface (23).
  10. 根据权利要求1-9任一项所述的一种具有轴密封效果的无刷电机，其特征在于，所述触压盖(8)的外壁设有防水膜。The brushless motor with shaft sealing effect according to any one of claims 1-9, characterized in that, a waterproof membrane is provided on the outer wall of the contact pressure cover (8).
PCT/CN2021/125727 2021-01-05 2021-10-22 Brushless motor having shaft sealing effect WO2022148098A1 (en)

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