阅读说明：本技术 一种外转子式防水结构及包含其外转子式设备 (Outer rotor type waterproof structure and outer rotor type equipment comprising same ) 是由 黄惠臣 于 2020-12-30 设计创作，主要内容包括：本申请是关于一种外转子式防水结构,用于外转子式设备的防水性能,包括防水组件,防水组件至少覆盖机身上引出转轴的机身通孔的边缘；防水组件包括防水环、防水圈和转轴壳。通过防水环和防水圈的紧密嵌合,能够极大地提升防水性能,防水圈和防水环之间的摩擦方式变为可能存在的通过其嵌合的侧壁进行的相互作较小的侧壁摩擦,本身具有良好的耐磨性；通过改进,橡胶防水圈一方面不与刀盘接触,另一方面也避免了其在设备作业过程中和流体接触,延长了防水圈的寿命。而包括该防水结构的转轴设备,如切片机、搅拌器等具有良好的防水性能。(The application relates to an outer rotor type waterproof structure, which is used for the waterproof performance of outer rotor type equipment and comprises a waterproof component, wherein the waterproof component at least covers the edge of a machine body through hole leading out a rotating shaft on a machine body; the waterproof assembly comprises a waterproof ring, a waterproof ring and a rotating shaft shell. The waterproof ring is tightly embedded with the waterproof ring, so that the waterproof performance can be greatly improved, the friction mode between the waterproof ring and the waterproof ring is changed into the possible side wall friction with small interaction through the embedded side walls, and the waterproof ring has good wear resistance; through improvement, the rubber waterproof ring is not in contact with the cutter head on one hand, and on the other hand, the rubber waterproof ring is prevented from being in contact with fluid in the operation process of equipment, so that the service life of the waterproof ring is prolonged. And the rotating shaft equipment comprising the waterproof structure, such as a slicing machine, a stirrer and the like, has good waterproof performance.)

1. An outer rotor type waterproof structure is characterized by comprising a waterproof component, wherein the waterproof component at least covers the edge of a machine body through hole leading out an outer rotor rotating shaft on a machine body; waterproof assembly includes waterproof ring, waterproof circle and pivot shell, waterproof ring install in around the fuselage through-hole, be equipped with waterproof ring protruding interior edge on the waterproof ring internal periphery, but waterproof ring is protruding along the butt waterproof circle with spacing waterproof circle, waterproof circle cup joints on the pivot shell, the external rotor pivot is worn to locate the pivot shell, so that waterproof construction has: when the outer rotor rotating shaft rotates, the waterproof ring rotates along with the rotating shaft shell, and the outer peripheral surface of the waterproof ring and the inner peripheral surface of the waterproof ring move relatively.

2. The waterproof structure according to claim 1, characterized in that: the waterproof ring faces one side of the machine body and is provided with a waterproof ring bottom groove, two sides of the waterproof ring bottom groove at least form a waterproof ring outer edge and a waterproof ring inner edge respectively, the bottom surface of the waterproof ring outer edge supports against the waterproof ring convex inner edge, and the outer peripheral surface of the waterproof ring outer edge is attached to the inner peripheral surface of the waterproof ring.

3. The waterproof structure according to claim 2, characterized in that: the inner side of the groove at the bottom of the waterproof ring is sleeved with a waterproof ring fixing ring.

4. The waterproof structure according to claim 2, characterized in that: the inner peripheral surface of the waterproof ring inner edge is provided with a waterproof ring side groove, and two sides of the waterproof ring side groove are respectively attached to the outer peripheral surface of the rotating shaft shell.

5. The waterproof structure according to claim 1, characterized in that: at least one part of the waterproof ring is embedded into the through hole of the machine body, and the waterproof ring is outwards turned on the outward side of the machine body and covers at least part of the edge of the through hole of the machine body.

6. The waterproof structure according to claim 5, characterized in that: the turning-up structure of the waterproof ring is provided with a waterproof ring fixing structure, and the waterproof ring fixing structure is used for fixedly connecting the waterproof ring and the machine body.

7. The waterproof structure according to claim 1, characterized in that: the rotating shaft shell is of a cover body structure, and a rotating shaft hole and a plurality of rotating shaft fixing holes are formed in the top surface of the cover body structure and used for being connected with an external rotating shaft.

8. The waterproof structure according to claim 1, characterized in that: the periphery of the rotating shaft shell is provided with an inclined plane and/or a step for guiding splashed fluid to a position far away from the waterproof ring.

9. The waterproof structure according to claim 1, characterized in that: the pivot shell is a driving pulley, the pivot shell inside with pivot fixed connection, waterproof circle cover is located pivot shell middle part, with pivot shell both ends form first transmission portion and second transmission portion respectively.

10. An outer rotor type apparatus, comprising:

a motor, a control circuit, and a waterproof structure according to any one of claims 1 to 9.

Technical Field

The application relates to the technical field of rotating shaft equipment, in particular to an outer rotor type waterproof structure and outer rotor type equipment comprising the same.

Background

At present, in a slicer, a stirrer or other equipment with an outer rotor type output end, a metal waterproof ring is adopted for waterproofing, the metal waterproof ring has good wear resistance, but based on the characteristic that metal lacks elasticity, a gap is possibly generated between the metal waterproof ring and an equipment body, and the waterproof performance is poor; also have the scheme that adopts the waterproof circle of rubber, the waterproof circle of rubber sets up on the fuselage through-hole through the fixed mode of biting the lip to receive the pressure influence of external pivot, therefore the waterproof circle of rubber can produce more serious friction with rotor hole or fuselage when rotating, therefore the wearability is poor. Regardless of the metal waterproof ring or the rubber waterproof ring scheme, splashed fluid is easily accumulated at the waterproof ring, thereby reducing the service life of the waterproof ring due to the corrosiveness of the fluid.

The document of japanese patent application JP2018503813 discloses a waterproof ring member that can be applied on an aircraft, providing the aircraft with a waterproof solution for the outer rotor motor, preventing water droplets from entering the interior of the mechanical equipment.

However, unlike the aircraft field, in slicers, blenders or other devices with external rotor output, it is often necessary to control or drive the output rotor via pulleys or other laterally disposed braking devices, or to replace an externally connected rotor, while taking into account the structural difficulty of mounting and dismounting the rotor.

Therefore, it is desired to design an outer rotor type waterproof structure to improve the above problems.

Disclosure of Invention

In order to overcome the problems in the related art, the application provides an outer rotor type waterproof structure for enhancing the waterproof performance of a rotating shaft, which comprises a waterproof component, wherein the waterproof component at least covers the edge of a through hole of a machine body, which leads out an outer rotor rotating shaft, of the machine body; waterproof assembly includes waterproof ring, waterproof circle and pivot shell, waterproof ring install in around the fuselage through-hole, be equipped with waterproof ring protruding interior edge on the waterproof ring internal periphery, but waterproof ring is protruding along the butt waterproof circle with spacing waterproof circle, waterproof circle cup joints on the pivot shell, the external rotor pivot is worn to locate the pivot shell, so that waterproof construction has: when the outer rotor rotating shaft rotates, the waterproof ring rotates along with the rotating shaft shell, and the outer peripheral surface of the waterproof ring and the inner peripheral surface of the waterproof ring move relatively.

Preferably, one side of the machine body, facing the waterproof ring, is provided with a waterproof ring bottom groove, two sides of the waterproof ring bottom groove at least form a waterproof ring outer edge and a waterproof ring inner edge respectively, the bottom surface of the waterproof ring outer edge is abutted against the waterproof ring convex inner edge, and the peripheral surface of the waterproof ring outer edge is attached to the inner peripheral surface of the waterproof ring.

Preferably, the inner side of the groove at the bottom of the waterproof ring is sleeved with a waterproof ring fixing ring.

Preferably, the inner peripheral surface of the inner edge of the waterproof ring is provided with a waterproof ring side groove, and two sides of the waterproof ring side groove are respectively attached to the outer peripheral surface of the rotating shaft shell.

Preferably, at least one part of the waterproof ring is embedded into the through hole of the fuselage, and the waterproof ring is turned outwards on the outward side of the fuselage and covers at least part of the edge of the through hole of the fuselage.

Preferably, a waterproof ring fixing structure is arranged on the outward turning structure of the waterproof ring and is used for fixedly connecting the waterproof ring and the machine body.

Preferably, the rotating shaft shell is of a cover body structure, and a rotating shaft hole and a plurality of rotating shaft fixing holes are formed in the top surface of the cover body structure and used for being connected with an external rotating shaft.

Preferably, the outer peripheral surface of the shaft housing is provided with a slope and/or a step for guiding splashed fluid to a position away from the waterproof ring.

Preferably, the pivot shell is a driving pulley, the pivot shell inside with pivot fixed connection, waterproof circle cover is located pivot shell middle part, with pivot shell both ends form first transmission portion and second transmission portion respectively.

An outer rotor type apparatus comprising a motor, a control circuit, and a waterproof structure as described in any one of the above.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application. According to the scheme of the invention, the waterproof performance can be greatly improved by tightly embedding the waterproof ring and the waterproof ring, through improvement, the waterproof ring can be made of rubber, plastic, metal and the like, the waterproof ring can also be made of rubber, plastic, metal and the like, the friction mode between the waterproof ring and the waterproof ring is changed into possible smaller side wall friction through the embedded side wall, and the waterproof ring has good wear resistance; through the position of the face of adjustment pivot perpendicular to through-hole place, can adjust the waterproof circle and support the pressure on pressing in the protruding interior edge of waterproof ring for this pressure is as little as possible, thereby reduce the wearing and tearing that the friction between the protruding interior edge of waterproof ring bottom and waterproof ring brought, and laminate through the straight wall of very little clearance again between waterproof ring and the waterproof ring, therefore even if waterproof ring and waterproof ring relative motion, inside the difficult entering fuselage of fluid also, and along with the rotation of waterproof ring, can further prevent the infiltration of fluid from the gap. Through the position adjustment to the relative through-hole's of pivot centrifugation direction, can be so that cup joint on the waterproof circle of pivot shell does not exert the effort or only exert less effort to waterproof ring on to can hardly produce the friction with waterproof ring when waterproof circle rotates, make waterproof circle be nearly empty for waterproof ring like this. By the tight embedding of the structure layer waterproof ring and the waterproof ring, the waterproof performance can be greatly improved, and the friction force between the waterproof ring and the waterproof ring is controlled to be small, so that the waterproof ring can work for a long time. When the outer rotor rotating shaft rotates, the waterproof ring rotates along with the rotating shaft shell, and the outer peripheral surface of the waterproof ring and the inner peripheral surface of the waterproof ring move relatively. Frictional force between waterproof circle and the waterproof ring is evaded through its gomphosis mode, compares the scheme that the waterproof circle lip direct interlock of rubber is fixed in the fuselage, and the cooperation makes waterproof subassembly have better wearability between waterproof circle and the waterproof ring in this scheme.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

FIG. 1 is a schematic view of the overall structure shown in the embodiment of the present application;

FIG. 2 is a schematic view of a waterproof structure shown in an embodiment of the present application;

FIG. 3 is a schematic view of a waterproof ring shown in an embodiment of the present application;

FIG. 4 is a schematic view of another waterproof ring shown in an embodiment of the present application;

FIG. 5 is a schematic view of a waterproof ring shown in an embodiment of the present application;

FIG. 6 is a schematic view of a spindle housing/pulley shown in an embodiment of the present application;

fig. 7 is a schematic view of the installation of the waterproof ring and the waterproof ring according to the embodiment of the present application.

The corresponding meanings of the labels in the figures are as follows:

Detailed Description

Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

An outer rotor type waterproof structure 100 is shown in figures 1 to 2, 5 and 7 of the attached drawings and is used for enhancing the waterproof performance of a rotating shaft, the rotating shaft and a machine body 2 can be determined according to the actual type of outer rotor equipment, the rotating shaft is a transmission rotating shaft 11 in the attached drawings and is used for being externally connected with an external transmission rotating shaft 12, and the external rotating shaft with different shapes and functions can be realized; in addition, the device also comprises a waterproof component 3, wherein the waterproof component at least covers the through hole 21 of the machine body, from which the rotating shaft is led out, of the machine body; the waterproof assembly comprises a waterproof ring 31, a waterproof ring 32 and a rotating shaft shell 33, the waterproof ring is installed on the edge of the through hole of the machine body, the inner peripheral surface of the waterproof ring is provided with a waterproof ring convex inner edge 313, the waterproof ring is abutted against the waterproof ring convex inner edge and is sleeved on the rotating shaft shell, the rotating shaft is penetrated through the rotating shaft shell, the position of the surface of the rotating shaft perpendicular to the through hole is adjusted, the pressure of the waterproof ring on the waterproof ring convex inner edge can be adjusted, the pressure is enabled to be as small as possible, the abrasion caused by the friction between the waterproof ring bottom and the waterproof ring convex inner edge is reduced, the waterproof ring and the waterproof ring are attached through a straight wall of a small gap, and even if the waterproof ring and the waterproof ring move relatively, fluid is difficult to enter the machine body, and along with the rotation of the waterproof ring, the fluid can be further prevented from permeating from the. Through the position adjustment to the relative through-hole's of pivot centrifugation direction, can be so that cup joint on the waterproof circle of pivot shell does not exert the effort or only exert less effort to waterproof ring on to can hardly produce the friction with waterproof ring when waterproof circle rotates, make waterproof circle be nearly empty for waterproof ring like this. By the tight embedding of the structure layer waterproof ring and the waterproof ring, the waterproof performance can be greatly improved, and the friction force between the waterproof ring and the waterproof ring is controlled to be small, so that the waterproof ring can work for a long time. Through improvement, the waterproof ring can be made of rubber, plastic, metal and the like, and the waterproof ring can also be made of rubber, plastic, metal and the like. When the outer rotor rotating shaft rotates, the waterproof ring rotates along with the rotating shaft shell, and the outer peripheral surface of the waterproof ring and the inner peripheral surface of the waterproof ring move relatively. Frictional force between waterproof circle and the waterproof ring is evaded through its gomphosis mode, compares the scheme that the waterproof circle lip direct interlock of rubber is fixed in the fuselage, and the cooperation makes waterproof subassembly have better wearability between waterproof circle and the waterproof ring in this scheme.

In a preferred embodiment, as shown in fig. 3 or fig. 4 of the drawings, a waterproof ring bottom groove 325 is formed on one side of the waterproof ring facing the machine body, at least one waterproof ring outer edge 322 and one waterproof ring inner edge 321 are respectively formed on two sides of the waterproof ring bottom groove, the bottom surface of the waterproof ring outer edge abuts against the waterproof ring convex inner edge, and the outer peripheral surface of the waterproof ring outer edge abuts against the inner peripheral surface of the waterproof ring. The waterproof ring with the waterproof ring bottom groove can be adaptive by utilizing the deformation capacity of the material of the waterproof ring bottom groove, and meanwhile, the space of the groove is utilized for buffering, so that the waterproof ring with a proper size and the rotating shaft shell are matched with each other, a good tightness degree is kept, the waterproof ring is tightly fixed on the rotating shaft shell, and a better waterproof effect is achieved.

In a preferred embodiment, as shown in fig. 2, 4 and 7, a waterproof ring fixing ring 326 is sleeved on the inner side of the waterproof ring bottom groove. The additionally arranged waterproof ring fixing ring is embedded into the groove at the bottom of the waterproof ring, so that the fixing effect of the waterproof ring can be further enhanced, and meanwhile, a new gap cannot be introduced due to the fact that the waterproof ring fixing ring is arranged on one surface of the waterproof ring facing the inner side of the machine body; after the waterproof ring is installed, the waterproof ring fixing ring is sleeved in the waterproof ring bottom groove, so that the fastening effect of the waterproof ring can be realized, and the waterproof ring is more firmly attached to the rotating shaft shell; optionally, the diameter of the ring body of the waterproof ring can be set to be close to the width of the groove at the bottom of the waterproof ring, so that when the waterproof ring is impacted from one side of the outer edge of the waterproof ring, the waterproof ring fixing ring can play a role in deformation and buffering; the waterproof ring fixing ring can be made of flexible materials such as rubber materials or materials such as iron wires and plastics with certain shaping capacity.

In a preferred embodiment, as shown in fig. 4, the inner circumferential surface of the inner edge of the waterproof ring is provided with a waterproof ring side groove 324, and two sides of the waterproof ring side groove are respectively attached to the outer circumferential surface of the shaft housing. The waterproof ring side groove can be obtained by machining the original waterproof ring structure by adopting a cutting process, so that the clearance between the waterproof ring and the rotating shaft shell is reduced by utilizing the elastic characteristic of the waterproof ring, and the possibility of fluid permeation is reduced.

In a preferred embodiment, at least a part of the waterproof ring is inserted into the fuselage through-opening, the waterproof ring being turned outwards on the outward side of the fuselage and covering at least part of the edge of the fuselage through-opening. In a preferred embodiment, the everting structure of the waterproof ring is provided with a waterproof ring fixing structure for fixedly connecting the waterproof ring and the fuselage. As shown in fig. 2 and 7 of the accompanying drawings, a part of the waterproof ring is embedded in the through hole of the fuselage, and the waterproof ring is fixed on the through hole of the fuselage by matching the waterproof ring fixing hole 312 of the everting upper edge 314 of the waterproof ring with the waterproof ring fixing column 311, so as to cover the through hole of the fuselage, reduce the positive gap and enhance the waterproof effect. The back of edge can set up waterproof ring buckle line and be used for cooperating the near structure of fuselage through-hole in waterproof ring turns up to fix and strengthen horizontal waterproof performance to waterproof ring. The waterproof ring fixing column can be a rivet, a screw or a buckle column and the like.

In a preferred embodiment, as shown in fig. 6, the rotating shaft housing is a cover structure, a rotating shaft hole 331 is formed on a top surface of the cover structure for preventing the rotating shaft from coming off the rotating shaft hole, and a screw structure is disposed inside the cover structure for engaging with an external rotating shaft for transmission. The cover body structure is integrally formed, and gaps are reduced. Optionally, the waterproof cover 13 of pivot hole edge is provided with the pivot, can strengthen the water-proof effects between external pivot and the transmission pivot, and external pivot or other accessories can be fixed through the pivot shell fixed orifices 332 that set up on the pivot shell. Alternatively, the external rotating shaft may be a cutter head of the slicer.

In a preferred embodiment, the outer peripheral surface of the shaft housing is provided with a slope and/or a step for guiding splashed fluid to a position away from the waterproof ring. As shown in fig. 6, the inclined surface 333 of the outer peripheral surface of the shaft housing and the step 334 of the outer peripheral surface of the shaft housing are provided to play a role of rebounding or guiding when the fluid splashes, thereby preventing the fluid from penetrating into the interior of the body.

In a preferred embodiment, the rotating shaft shell is a driving belt pulley, the inside of the rotating shaft shell is fixedly connected with the rotating shaft, and the waterproof ring is sleeved in the middle of the rotating shaft shell so as to form a first driving part and a second driving part at two ends of the rotating shaft shell respectively. As shown in fig. 2, the upper limit ring 14 of the rotating shaft, the lower limit inner ring 15 of the rotating shaft, the lower limit outer ring 16 of the rotating shaft, the upper transmission ring 17 of the rotating shaft, the lower transmission ring 18 of the rotating shaft, the limit sleeve 19 of the rotating shaft and the inner peripheral wall of the rotating shaft shell are matched, so that at least the transmission rotating shaft and the rotating shaft shell are fixed, and the transmission rotating shaft is driven by driving the rotating shaft shell; when the transmission rotating shaft rotates under the rotation of the rotating shaft shell, the waterproof ring rotates along with the rotating shaft shell, and the waterproof ring are in contact through the side walls of the waterproof ring and the waterproof ring, so that the waterproof ring has better sealing performance, and fluid retained in the gap can be taken out through centrifugal motion due to rotation; optionally, both ends of the rotating shaft shell are used for transmission respectively, the waterproof assembly is installed in the middle of the belt pulley, one end of the rotating shaft shell on the inner side of the machine body is a first transmission part which can be used for being connected with the motor through a belt, and one end of the rotating shaft shell on the outer side of the machine body is a second transmission part which can be used for being transmitted with an external component. Through improving, compare the rubber waterproof circle of direct and blade disc or other external pivot butts, the rubber waterproof circle does not contact with the blade disc on the one hand in this embodiment, and on the other hand has also avoided its and fluid contact in equipment operation process, has prolonged the life-span of waterproof circle.

An outer rotor apparatus, such as a slicer, blender or other apparatus, comprising a motor, control circuitry and a water resistant structure as in any one of the preceding. As shown in fig. 1 of the accompanying drawings, a transmission rotating shaft extension 111 is arranged on one side of the transmission rotating shaft facing the inside of the machine body, and is optionally connected with the transmission rotating shaft in a thread manner, so that the whole machine can be conveniently assembled, and the abutting force between the waterproof ring and the waterproof ring can be adjusted; the motor can be driven by the rotating shaft shell or the transmission rotating shaft under the drive of the control circuit; the waterproof structure can play a very excellent waterproof effect due to the tight embedding mode.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.