CN212672101U - Bearing body, motor shell assembly and circulating pump using motor shell assembly - Google Patents
Bearing body, motor shell assembly and circulating pump using motor shell assembly Download PDFInfo
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- CN212672101U CN212672101U CN202021400775.5U CN202021400775U CN212672101U CN 212672101 U CN212672101 U CN 212672101U CN 202021400775 U CN202021400775 U CN 202021400775U CN 212672101 U CN212672101 U CN 212672101U
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Abstract
The utility model discloses a bearing body, motor housing subassembly and use circulating pump of this motor housing subassembly, include: the bearing comprises a bearing main body and a plurality of protruding parts which are arranged on the circumferential part of the bearing main body at intervals along the axial direction of a shaft hole, and a depressed area is formed between every two adjacent protruding parts. The utility model discloses can effectively improve the firmness under bearing body and the motor housing subassembly cooperation state and the stability when using.
Description
Technical Field
The utility model relates to a circulating pump technical field especially relates to a bearing body, motor casing subassembly and use circulating pump of this motor casing subassembly.
Background
The bearing assembly used in the motor casing in current circulation pumps is formed by the assembly of an upper bearing and an upper bearing seal ring, the bearing assembly being riveted to the bottom of the motor casing to form the motor casing assembly. The circulating pump is used on dish washer usually, and the dish washer operation, the temperature can reach 70 ℃, the duty cycle is 2h, and the sealing washer in the bearing subassembly belongs to the rubber material, and long-time submergence is in hot water, and the sealing washer can expend with heat and contract with cold, and the time is of a specified duration, can take the bearing protrusion, and circulating pump bottom drunkenness volume will reduce like this, and the circulating pump adopts the structure that the graphite bearing was joined in marriage in the water lubrication, in case there is not drunkenness volume or drunkenness volume in the circulating pump bottom to reduce, the.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides a bearing body to solve the anticreep effect technical problem who optimizes the bearing body.
A second object of the present invention is to provide a motor housing assembly to solve the technical problems of strengthening the stability and firmness of the assembly between the bearing body and the housing.
The third objective of the utility model is to provide a circulating pump to the technical problem who strengthens motor casing subassembly stability in use is solved.
The utility model discloses a bearing body is realized like this:
a bearing body, comprising:
a bearing body having a shaft hole adapted for the rotation shaft to pass therethrough;
the plurality of protruding parts are arranged at intervals along the axial direction of the shaft hole in the circumferential direction of the bearing main body; and a concave area is formed between every two adjacent convex parts; and at least one flat end surface is formed on the circumferential side of at least one of the plurality of convex portions.
In an optional implementation of the present invention, two annular protrusions surrounding the shaft hole are disposed on the bearing main body at intervals; and
at least one flat end surface is formed on a circumferential surface of at least one of the two bosses.
In a preferred embodiment of the present invention, the two protrusions have different outer diameters.
In the preferred embodiment of the present invention, two of the protruding portions have a pair of symmetrically distributed flat end surfaces formed on the circumferential sides of the protruding portions having smaller outer diameters.
The utility model discloses in the implementation of preferred, when a plurality of all be formed with the flat terminal surface on every adjacent two bellying in the bellying, the flat terminal surface that forms on these two bellyings sets up along the circumference dislocation of bearing main part.
In the preferred embodiment of the present invention, the ratio of the length of the flat end surface to the outer diameter of the protrusion provided with the flat end surface is not greater than 1/3.
The utility model discloses a motor casing subassembly is realized like this:
a motor casing assembly comprising: the bearing body is arranged in the machine shell;
the bearing body is fixed in the shell in a plasticizing mode; and
the shell body is suitable for being embedded with convex ribs fixed in the concave areas of the bearing bodies in an integral injection molding mode.
In the preferred embodiment of the present invention, one of the plurality of the protrusions is located on the circumferential side of the axial end of the bearing main body.
In a preferred embodiment of the present invention, the motor housing assembly further includes an injection molding magnetic ring disposed in the housing and adapted to contact with a protrusion at an axial end of the bearing body; and
the circumferential side of the protruding part suitable for contacting with the injection molding magnetic ring is not provided with a flat end face.
The utility model discloses a circulating pump is realized like this:
a circulation pump, comprising: the motor housing assembly.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a bearing body, motor casing subassembly and use circulating pump of this motor casing subassembly, a plurality of bellying through being equipped with in the circumference of the bearing main part of bearing body, the depressed area that the cooperation formed between every two adjacent bellyings, the rethread is with the casing complex in-process of moulding plastics, the injection molding material when conveniently moulding plastics enters into the depressed area and fills up the depressed area, prevent to produce the space between bearing body and casing, improve the joint strength of bearing body and casing, thereby improve the stability when adapting to the casing use that has the bearing body.
Furthermore, at least one flat end surface is formed on the circumferential side of at least one protruding part, so that injection molding materials during injection molding can further conveniently enter the concave area to fill the concave area so as to improve the connection strength between the bearing body and the shell, and meanwhile, the relative rotation between the bearing body and the shell can be prevented due to the arrangement of the flat end surfaces.
Drawings
Fig. 1 is a first perspective view of a bearing body according to embodiment 1;
fig. 2 is a second perspective view of the bearing body of the present embodiment 1;
fig. 3 is a third perspective view of the bearing body of the present embodiment 1;
fig. 4 is a fourth perspective view of the bearing body according to the embodiment 1;
fig. 5 is a schematic view of the overall structure of the motor housing assembly of the embodiment 2;
FIG. 6 is a schematic sectional view taken along line A of FIG. 5;
fig. 7 is a schematic structural diagram of a circulation pump according to embodiment 3.
In the figure: the bearing comprises a bearing main body 1, a convex part 11, a concave area 12, a shaft hole 13, a flat end surface K, a shell 2, an injection molding convex rib 21 and an injection molding magnetic ring 22.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 to 4, the present embodiment provides a bearing body, including: the bearing comprises a bearing body 1 and a plurality of protruding parts 11 arranged at intervals along the axial direction of a shaft hole 13 at the circumferential part of the bearing body 1, wherein a recessed area 12 is formed between every two adjacent protruding parts 11.
Specifically, the bearing main body 1 has a shaft hole 13 adapted to have a rotating shaft pass therethrough. In conjunction with the drawings of the present embodiment, the protruding portion 11 of the present embodiment is exemplified by a ring-shaped structure around the shaft hole 13, and the shape of the protruding portion 11 of the ring-shaped structure is regular and is easy to machine.
It should be noted that, regarding the plurality of protruding portions 11 of the present embodiment, in a practical and preferable case, two protruding portions 11 of the plurality of protruding portions 11 are respectively disposed in the circumferential direction of the two axial ends of the bearing main body 1, that is, the two protruding portions 11 and the two axial ends of the bearing main body 1 form a coplanar structure. The significance of such a structure design is that when the bearing body of the present embodiment is applied to a motor casing assembly, the protruding portion 11 at one axial end of the bearing main body 1 can form a larger mating contact surface with the injection-molded magnetic ring 22 included in the motor casing assembly, so as to improve the mating stability of the two, which will be further described in embodiment 2. And for the convex part 11 at one axial end of the bearing main body 1, the contact surface for matching between the axial end of the bearing main body and the motor shell assembly can be improved, so that the matching firmness of the axial end of the bearing main body and the motor shell assembly is improved.
More specifically, at least one flat end surface K is formed on the circumferential side of at least one boss 11 among the plurality of bosses 11. Meaning that a flat end surface K may be formed on an axial side of one or several boss 11 among the several boss 11, and one or more flat end surfaces K may be provided for a circumferential side of the same boss 11. Of course, here too, the flat end face K is not designed for the convenience of machining, but rather for the end faces of other shapes.
It should be noted that, if every adjacent boss 11 in a plurality of boss 11 all is formed with plain end face K, the plain end face K that forms on every two adjacent bosses 11 at this moment is along the circumference dislocation distribution of bearing body, the significance of designing like this lies in forming the echelonment for depressed area 12 between two adjacent bosses 11 not, so, can be so that when the bearing body of this embodiment is moulded plastics to the motor case subassembly, the injection molding material of the casing 2 that forms the motor case subassembly by injection molding enters into depressed area 12, improve filling degree and the degree of compactness behind the depressed area 12 is filled to the injection molding material, thereby improve bearing body and motor case subassembly complex firmness and stability.
In a specific alternative implementation case, in combination with the drawings of the present embodiment, two protruding portions 11 are provided on the bearing main body 1 at intervals; and when there are only two protruding portions 11, the two protruding portions 11 are respectively disposed in the circumferential direction of the two axial ends of the bearing main body 1. At least one flat end face K is formed on the circumferential surface of one of the two protruding portions 11, wherein the pair of flat end faces K are symmetrically distributed, the symmetrical structure is convenient to process on one hand, the stability of the whole structure of the bearing body is good on the other hand, the symmetry is good, the structure is more regular, the stability of the bearing body in corresponding use is higher, and the effect of improving the balance of the structure can be achieved.
In addition to the above-mentioned implementation of the two convex portions 11, in a preferable case, the outer diameters of the two convex portions 11 are set to be different, and the outer diameters of the two convex portions 11 may be set to be the same or different, and this embodiment is not limited in any way. The different significance of the external diameter that this embodiment designed two bellying 11 lies in, to two bellying 11 between the two formed depressed area 12, at this bearing body and motor casing subassembly in-process of carrying out the assembly of moulding plastics, the injection molding material of the casing body 2 that forms the motor casing subassembly can enter into depressed area 12 to make bearing body and motor casing subassembly produce interference fit after the completion of moulding plastics. If the outer diameters of the two convex parts 11 distributed along the axial direction of the bearing body are the same, the stepped structure relative to the concave area 12 does not exist between the two convex parts 11, so that the injection molding material for forming the shell 2 of the motor shell component by injection molding is not favorable to enter the concave area 12; therefore, this embodiment is through the difference that sets up the external diameter of two bellying 11 for the bellying 11 that are located depressed area 12 both sides respectively form the echelonment, so, can be so that the injection molding material of the casing body 2 that forms the motor casing subassembly of moulding plastics enters into depressed area 12, improves filling degree and closely knit degree after the depressed area 12 is filled to the injection molding material, thereby improves bearing body and motor casing subassembly complex firmness and stability.
In addition to the above structure, in an alternative embodiment, the flat end surface K is formed on the circumferential side of the boss 11 having the smaller outer diameter of the two bosses 11. The significance of this design is further elaborated in example 2.
Finally, it should be noted that, regarding the flat end surface K of the bearing body of the present embodiment, the design of the flat end surface K can further facilitate the injection molding material entering the recessed area 12 to fill the recessed area 12 when the bearing body of the present embodiment is fixed in the motor casing assembly by injection molding so as to improve the connection strength between the bearing body and the casing 2, and meanwhile, the flat end surface K can also prevent the bearing body and the casing 2 from rotating relatively. To sum up, to the blunt surface K of this embodiment, the realization of its effect mainly realizes two bellying 11 through blunt surface K further for the stair structure of depressed area 12, consequently does not need blunt surface K's length very big, and considers the intensity of the overall structure of bearing body, still does not influence the structural strength of holistic bearing body on making blunt surface K can normally realize its basis of effect, and the ratio that the length of blunt surface K took up the external diameter of the bellying 11 that is equipped with this blunt surface K is not more than 1/3.
Example 2:
referring to fig. 5 to 7, on the basis of the bearing body of embodiment 1, the present embodiment provides a motor casing assembly, including: a housing 2 and a bearing body as in embodiment 1 provided in the housing 2; the bearing body is fixed in the shell 2 in a plasticizing way; and the housing 2 is integrally injection molded with ribs adapted to be inserted to be fixed in the recessed areas 12 of the bearing body. The embodiment connects the bearing body with casing 2 in a plasticizing fixed manner, not only improves the firmness of the cooperation of the bearing body and the casing 2, but also effectively improves the concentricity of the bearing body and the casing 2.
In addition, to two bellying 11 between the two formed depressed area 12, specifically at the in-process that bearing body and motor casing subassembly were moulded plastics and are assembled, the injection molding material of the casing 2 that forms the motor casing subassembly can enter into depressed area 12 and form protruding muscle 21 of moulding plastics to make bearing body and motor casing subassembly produce interference fit after the completion of moulding plastics, interference fit's structure can prevent that bearing body and casing 2 from moulding plastics and taking place to drop after integrative.
The embodiment firstly completes the injection molding of the bearing body, the bearing body after the injection molding is placed on the mold core of the injection mold of the shell body 2, the bearing body is positioned by the mold core of the mold, then the shell body 2 is formed by injection molding material, so that in the process of forming the shell body 2 by injection molding, the bearing body is also plasticized and fixed in the shell body 2, meanwhile, the injection molding material of the shell body 2 forming the motor shell assembly can enter the concave area 12 to form the injection molding convex rib 21, and thus the bearing body and the motor shell assembly generate interference fit after the injection molding is completed
Still in the case where the bearing body of embodiment 1 includes the two protrusions 11, the two protrusions 11 are provided corresponding to the two ends of the bearing body in the axial direction, respectively. On this basis, the motor casing assembly of the present embodiment further includes an injection-molded magnetic ring 22 disposed in the casing 2 and adapted to contact with one axial end of the bearing body.
In an alternative case, the injection-molded magnetic ring 22 is adapted to contact with the boss 11 having the larger outer diameter of the two bosses 11 corresponding to the bearing body, and the circumferential side of the boss 11 adapted to contact with the injection-molded magnetic ring 22 is not provided with the flat end surface K, that is, for the bearing body provided with the two bosses 11, the boss 11 provided with the flat end surface K is the boss 11 having the smaller outer diameter. The reason for this is that, when the motor housing assembly of the present embodiment is applied to a circulation pump, the injection molded magnetic ring 22 may move in the circumferential direction during the operation of the circulation pump, and therefore, the protruding portion 11 connected to the injection molded magnetic ring 22 is the protruding portion 11 with a larger outer diameter, and the protruding portion 11 is not provided with the flat end surface K, so that the friction surface between the bearing body and the injection molded magnetic ring 22 can be increased, thereby improving the wear resistance of the bearing body.
Example 3:
referring to fig. 7, on the basis of the motor housing assembly of embodiment 2, the present embodiment provides a circulation pump, including: the motor housing assembly of example 2.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, 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 invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A bearing body, comprising:
a bearing body having a shaft hole adapted for the rotation shaft to pass therethrough;
the plurality of protruding parts are arranged at intervals along the axial direction of the shaft hole in the circumferential direction of the bearing main body; and a concave area is formed between every two adjacent convex parts; and at least one flat end surface is formed on the circumferential side of at least one of the plurality of convex portions.
2. The bearing body as claimed in claim 1, wherein two of the protrusions are provided at intervals on the bearing body in an annular configuration around a shaft hole; and
at least one flat end surface is formed on a circumferential surface of at least one of the two bosses.
3. The bearing body as claimed in claim 2, wherein the two lobes differ in outer diameter.
4. The bearing body according to claim 3, wherein a pair of symmetrically distributed flat end surfaces are formed on a circumferential side of a boss of which outer diameter is smaller of the two bosses.
5. The bearing body according to claim 1, wherein when the flat end surface is formed on each of two adjacent ones of the plurality of the convex portions, the flat end surfaces formed on the two convex portions are arranged in a staggered manner along a circumferential direction of the bearing body.
6. The bearing body according to any one of claims 1 to 5, wherein the ratio of the length of the flat end surface to the outer diameter of the convex portion provided with the flat end surface is not more than 1/3.
7. A motor casing assembly, comprising: a machine shell and a bearing body as claimed in any one of claims 1 to 6 arranged in the machine shell;
the bearing body is fixed in the shell in a plasticizing mode; and
the shell body is suitable for being embedded with convex ribs fixed in the concave areas of the bearing bodies in an integral injection molding mode.
8. The motor housing assembly of claim 7, wherein one of the plurality of lobes is located on a circumferential side of an axial end of the bearing body.
9. The motor case assembly of claim 8, further comprising an injection molded magnetic ring disposed within the housing and adapted to contact a projection at an axial end of the bearing body; and
the circumferential side of the protruding part suitable for contacting with the injection molding magnetic ring is not provided with a flat end face.
10. A circulation pump, comprising: comprising a motor housing assembly according to any of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400775.5U CN212672101U (en) | 2020-07-16 | 2020-07-16 | Bearing body, motor shell assembly and circulating pump using motor shell assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400775.5U CN212672101U (en) | 2020-07-16 | 2020-07-16 | Bearing body, motor shell assembly and circulating pump using motor shell assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672101U true CN212672101U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021400775.5U Active CN212672101U (en) | 2020-07-16 | 2020-07-16 | Bearing body, motor shell assembly and circulating pump using motor shell assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212672101U (en) |
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2020
- 2020-07-16 CN CN202021400775.5U patent/CN212672101U/en active Active
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