CN212304955U

CN212304955U - Motor casing's assembly structure

Info

Publication number: CN212304955U
Application number: CN202021204152.0U
Authority: CN
Inventors: 陈刚军
Original assignee: Zhejiang Taizhou Julong Technology Co ltd
Current assignee: Zhejiang Taizhou Julong Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-01-05
Anticipated expiration: 2030-06-24

Abstract

The utility model provides a motor casing's assembly structure belongs to motor technical field. The axial-loading cooling device solves the problems that the cooling cavity cannot be arranged in the axial loading mode of the existing motor, and the assembly of the cooling cavity and the outer surface of the motor shell is dry. The assembly structure of the motor shell comprises a first shell and a second shell, wherein the first shell and the second shell are respectively and independently molded, a cylindrical driving cavity I is arranged in the first shell, a cylindrical driving cavity II is arranged in the second shell, the first shell and the second shell are oppositely combined and fixedly connected, the driving cavity I and the driving cavity II are oppositely combined in the same axial direction, and a limiting device for preventing the first shell and the second shell from being oppositely combined and shifted is arranged between the first shell and the second shell. The utility model discloses can set up the cooling chamber of large tracts of land in the casing of motor and carry out effectual cooling to the drive cavity of motor, the degree of cooperation is better controlled, the stable in structure of motor, and the radiating effect is better.

Description

Motor casing's assembly structure

Technical Field

The utility model belongs to the technical field of the motor, a motor casing's assembly structure is related to.

Background

The motor is more and more widely applied by the advantages of low magnetic resistance, labor saving in pushing, small size, light weight, large torque, suitability for climbing, convenience in installation and maintenance and the like. The motors generally use higher electromagnetic loads to increase material utilization, and therefore the motors must be cooled to increase their heat dissipation capacity.

The existing motor generally adopts an axial installation mode, the axial installation mode of the motor has certain defects, and a large-area cooling cavity is not easily arranged in a motor shell of the motor, so that the motor can effectively dissipate heat; the outer surface of the motor shell is provided with bulges or depressions to increase the surface area of the motor shell and improve the heat dissipation performance, the two ends of the motor shell are provided with connecting flanges and connected with parts at the two ends through the connecting flanges, when the diameters of the bulges or the outer diameters of the connecting flanges are larger than the inner diameter of the outer lining, the outer lining cannot be axially installed on the outer surface of the motor shell, at the moment, the bulges at one end of the outer lining have to be reduced or the diameters of the connecting flanges are reduced, the interference caused by the axial installation of the outer lining on the outer surface of the motor shell can be avoided, and the heat dissipation performance and the connection strength of the motor.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide one kind and can set up the cooling cavity of large tracts of land in the casing of motor, can not produce the drier with the structure of motor surface to be convenient for install, guarantee motor casing's heat dispersion and connection performance's motor casing's assembly structure.

The purpose of the utility model can be realized by the following technical proposal: the assembly structure of the motor shell comprises a first shell and a second shell, wherein the first shell and the second shell are respectively and independently molded, a cylindrical driving cavity I is arranged in the first shell, a cylindrical driving cavity II is arranged in the second shell, the first shell and the second shell are oppositely and fixedly connected, and the driving cavity I and the driving cavity II are axially oppositely arranged.

The assembling structure of the motor shell mainly manufactures the motor shell in a split manner, is provided with the first shell and the second shell, transversely manufactures the driving cavity in the shell of the motor in a separated manner, is provided with the first driving cavity and the second driving cavity, and then performs axial relative involution and fixation, so that the purpose of the arrangement is to conveniently process a large-area cooling cavity in the shell of the motor, effectively cool the driving cavity of the motor and improve the heat dissipation performance of the motor; the limiting device is arranged between the first shell and the second shell, the first shell and the second shell are limited, closed, assembled and fixed through the limiting device, the first shell and the second shell can be effectively prevented from being relatively moved in a closed mode, the structure is stable, and assembly is convenient. When the first shell and the second shell are oppositely combined and fixed in practical use, the sealing cotton pads are arranged on oppositely combined matching surfaces of the first shell, the second shell and the first driving chamber and the second driving chamber, so that the sealing effectiveness of the first shell, the second shell, the first driving chamber and the second driving chamber in opposite combination is ensured.

In the above-mentioned assembly structure of the motor casing, the limiting device includes that a plurality of locating holes which are axially arranged are circumferentially distributed on the outer wall of the first driving cavity of the first casing at intervals, a plurality of locating pins which are axially arranged are circumferentially distributed on the outer wall of the second driving cavity of the second casing at intervals, the locating holes and the locating pins are in one-to-one correspondence, when the first casing and the second casing are oppositely and fixedly connected, the locating pins penetrate through the corresponding locating holes to enable the first casing and the second casing to be oppositely and fixedly connected, and an auxiliary limiting structure which enables the first casing and the second casing to be oppositely and fixedly connected is further arranged between the first casing and the second casing. The positioning pins are circumferentially distributed on the outer wall of the driving cavity I of the shell I at intervals, the positioning holes are circumferentially distributed on the outer wall of the driving cavity I of the shell I at intervals, the positioning pins are axially inserted into the positioning holes and are matched with the positioning holes, circumferential dislocation and displacement of the shell I and the shell II which are oppositely matched and fixed can be effectively prevented through axial matching of the positioning pins and the positioning holes, the structure is stable, and the service life is long.

In the assembly structure of the motor shell, the auxiliary limiting structure comprises a first assembly groove and a second assembly groove, the first assembly groove and the second assembly groove are axially arranged on the inner wall of the first drive cavity of the first shell at intervals in the circumferential direction, the second assembly groove and the second assembly groove are axially arranged on the inner wall of the second drive cavity of the second shell at intervals in the circumferential direction, and when the first shell and the second shell are oppositely and oppositely closed and fixedly connected, the first assembly groove and the second assembly groove are axially oppositely closed and are used for limiting and assembling a limiting edge of the outer wall of a motor stator. When the stator of the motor is arranged in the driving chamber I of the first shell and the driving chamber II of the second shell, the limiting edges of the stator of the motor are positioned in the corresponding assembly grooves I and II, and the assembly mode can assist in limiting to enable the first shell and the second shell to be oppositely fixed in an involutory mode, so that the structure is stable and the service life is long; during actual manufacturing, the first assembling groove and the second assembling groove are formed by two arc-shaped grooves in parallel.

In the assembly structure of the motor shell, the first shell and the second shell are rectangular boxes, the first driving cavity is located in the rectangular box of the first shell, the second driving cavity is located in the rectangular box of the second shell, and the first shell and the second shell are fixedly connected in a relatively involutive mode through the box opening end faces of the rectangular boxes. The purpose of setting up like this is conveniently to set up the cooling cavity in casing one, casing two rectangular box between them, makes the drive cavity of casing one, the drive cavity of casing two be in the cooling cavity, makes the power cavity of motor carry out effectual heat dissipation, conveniently carries out the processing of cooling cavity.

In the above-mentioned assembly structure of the motor casing, the box opening end faces of the rectangular boxes of the first casing and the second casing are both a flat face, bolt holes which are axially arranged are circumferentially distributed on the box opening end faces of the rectangular boxes of the first casing and the second casing along the circumferential direction of the rectangular boxes, the bolt holes of the first casing are axially opposite to the bolt holes of the second casing, and the first casing and the second casing are arranged in the bolt holes of the rectangular boxes of the first casing and the second casing through bolts in a penetrating manner, so that the first casing and the second casing are oppositely and fixedly connected. The first shell and the second shell are fixedly connected relatively through bolts, so that the first shell and the second shell can be assembled oppositely and oppositely.

In the above-mentioned assembly structure of the motor casing, the cavity opening end face of the first driving cavity of the first casing and the cavity opening end face of the second driving cavity of the second casing are both flat surfaces, bolt holes which are axially arranged are distributed on the cavity opening end faces of the first driving cavity of the first casing and the second driving cavity of the second casing at intervals along the circumferential direction of the bolt holes, the bolt holes of the first driving cavity of the first casing are axially opposite to the bolt holes of the second driving cavity of the second casing, and the first casing and the second casing are penetrated through the bolt holes of the first casing and the second casing to enable the first casing and the second casing to be oppositely and fixedly connected. The purpose of setting up like this is to increase the stability of the relative involution assembly structure of casing one, casing two, long service life.

In the assembling structure of the motor shell, a circular inner boss is arranged on the inner wall of the closed end face of the cavity of the first driving cavity of the first shell, a through hole I is formed in the circular inner boss and is used for axial penetration of one end of a motor spindle, and first reinforcing ribs which are radially arranged are circumferentially distributed at intervals between the circular inner boss and the closed end face of the cavity of the first driving cavity; the inner wall of the closed end face of the cavity of the driving cavity II of the shell II is provided with an annular assembling position, the closed end face of the cavity of the driving cavity II of the shell II in the annular assembling position is provided with a through hole II for the axial penetration of the other end of the motor spindle, reinforcing ribs II which are arranged radially are distributed between the annular assembling position and the closed end face of the cavity of the driving cavity II at intervals in the circumferential direction, and the through hole I and the through hole II are distributed relatively in the axial direction. The purpose of this is: the mechanical strength of the cavity closed end face of the first driving cavity of the first shell and the mechanical strength of the cavity closed end face of the second driving cavity of the second shell are increased, and the stability that two ends of the motor spindle penetrate out of the cavity closed end face of the first driving cavity of the first shell and the cavity closed end face of the second driving cavity of the second shell in opposite directions is guaranteed, the structure is stable, and the service life is long.

Compared with the prior art, this motor casing's assembly structure's advantage does: the shell of the motor is manufactured separately and independently, and a large-area cooling cavity can be arranged in the shell of the motor to effectively cool the driving cavity of the motor, so that the heat dissipation performance of the motor is improved; the shell of the motor is manufactured in a split mode and then is effectively and fixedly connected in an involution mode, so that the motor can be prevented from interfering with a heat dissipation structure on the outer surface of the motor in the assembling process, and the heat dissipation performance of the whole motor is guaranteed; the process that the cooling cavity with a large area is arranged inside the shell of the motor is manufactured in a split mode and then is fixedly connected with the motor in a relatively involutive mode is simpler, the matching degree of the shell of the motor is better controlled, the structure of the motor is stable, and the heat dissipation effect is better.

Drawings

Fig. 1 is a perspective view showing an exploded assembly structure of the motor case of the present invention.

In the figure, 1, a first shell; 2. a second shell; 3. a first driving chamber; 4. a second driving chamber; 5. positioning holes; 6. positioning pins; 7. assembling a first groove; 8. assembling a second groove; 9. bolt holes; 10. a circular inner boss; 11. a first through hole; 12. reinforcing ribs I; 13. a ring-shaped assembly position; 14. a second through hole; 15. and a second reinforcing rib.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the assembly structure of the motor housing mainly comprises a housing I1 and a housing II 2, the housing I1 and the housing II 2 are respectively and independently formed, a cylindrical driving chamber I3 is arranged in the housing I1, a cylindrical driving chamber II 4 is arranged in the housing II 2, the housing I1 and the housing II 2 are oppositely and fixedly connected, the driving chamber I3 and the driving chamber II 4 are oppositely and axially oppositely arranged, and a limiting device for preventing the housing I1 and the housing II 2 from oppositely and oppositely moving is arranged between the housing I1 and the housing II 2.

During actual manufacturing, the specific implementation mode of the limiting device is as follows: two positioning holes 5 which are axially arranged are circumferentially distributed on the outer wall of the first driving cavity 3 of the first shell 1 at intervals, two positioning pins 6 which are axially arranged are circumferentially distributed on the outer wall of the second driving cavity 4 of the second shell 2 at intervals, the positioning holes 5 correspond to the positioning pins 6 one to one, when the first shell 1 and the second shell 2 are oppositely and fixedly connected, the positioning pins 6 penetrate through the corresponding positioning holes 5 to enable the first shell 1 and the second shell 2 to be limited and fixedly connected in an opposite mode, and an auxiliary limiting structure which enables the first shell 1 and the second shell 2 to be oppositely and fixedly connected is further arranged between the first shell 1 and the second shell 2.

In the actual design, the specific implementation of the auxiliary limiting structure is as follows: the inner wall of the first driving cavity 3 of the first shell 1 is circumferentially and alternately provided with three first assembling grooves 7 which are axially arranged, the inner wall of the second driving cavity 4 of the second shell 2 is circumferentially and alternately provided with three second assembling grooves 8 which are axially arranged, and when the first shell 1 and the second shell 2 are oppositely and oppositely fixed, the first assembling grooves 7 and the second assembling grooves 8 are axially and oppositely abutted to limit edges which are used for limiting and assembling the outer wall of the motor stator.

During actual manufacturing, the first shell 1 and the second shell 2 are both rectangular boxes, the first driving chamber 3 is located in the rectangular box of the first shell 1, the second driving chamber 4 is located in the rectangular box of the second shell 2, and the first shell 1 and the second shell 2 are fixedly connected in a relatively involutory manner through the box opening end faces of the rectangular boxes; specifically speaking: the box opening end faces of the rectangular boxes of the first shell 1 and the second shell 2 are flat, bolt holes 9 which are axially arranged are circumferentially distributed on the box opening end faces of the rectangular boxes of the first shell 1 and the second shell 2 along the circumferential direction of the rectangular boxes, the bolt holes 9 of the first shell 1 are axially opposite to the bolt holes 9 of the second shell 2, and the first shell 1 and the second shell 2 are arranged in the bolt holes 9 of the rectangular boxes of the first shell 1 and the second shell 2 in a penetrating mode through bolts so that the first shell 1 and the second shell 2 are oppositely closed and fixedly connected; this casing 1's drive chamber 3's cavity opening terminal surface, casing two 2's drive chamber two 4's cavity opening terminal surface is the planishing face, casing 1's drive chamber 3, it has the bolt hole 9 that is the axial setting to distribute along its circumference interval on the cavity opening terminal surface of casing two 2's drive chamber two 4's the cavity opening terminal surface, this casing 1's drive chamber 3's bolt hole 9 and casing two 2's drive chamber two 4's bolt hole 9 axial is relative, this casing 1, casing two 2 wear to locate casing 1 through the bolt, make casing 1 and casing two 2 relatively to closing in the bolt hole 9 of casing two 2's drive chamber to link firmly.

During actual manufacturing, a circular inner boss 10 is arranged on the inner wall of the closed end face of the cavity of the driving cavity I3 of the shell I1, a through hole I11 is formed in the circular inner boss 10 and is used for axial penetration of one end of a motor spindle, and radially arranged reinforcing ribs I12 are circumferentially distributed between the circular inner boss 10 and the closed end face of the cavity of the driving cavity I3 at intervals; an annular assembling position 13 is arranged on the inner wall of the closed end face of the cavity of the driving cavity II 4 of the shell II 2, a through hole II 14 is formed in the closed end face of the cavity of the driving cavity II 4 of the shell II 2 in the annular assembling position 13 and is used for axial penetration of the other end of the motor spindle, two reinforcing ribs 15 which are radially arranged are circumferentially distributed between the annular assembling position 13 and the closed end face of the cavity of the driving cavity II 4 at intervals, and the through hole I11 and the through hole II 14 are axially distributed oppositely.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the first housing 1 is used more herein; a second shell 2; a first driving chamber 3; a second driving chamber 4; a positioning hole 5; a positioning pin 6; a first assembling groove 7; a second assembling groove 8; bolt holes 9; a circular inner boss 10; a first through hole 11; a first reinforcing rib 12; a ring-shaped assembly site 13; a second through hole 14; the term rib two 15, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an assembly structure of motor casing, includes casing (1) and casing two (2), this casing (1) and casing two (2) independent molding respectively, casing (1) in have and be the drive cavity one (3) of tube-shape, casing two (2) in have and be the drive cavity two (4) of tube-shape, casing (1) and casing two (2) relatively to closing and linking firmly, this drive cavity one (3), the same axial of drive cavity two (4) is closed, its characterized in that, casing (1) and casing two (2) between be provided with and prevent casing one (1), casing two (2) relative stop device who closes the aversion.

2. The motor shell assembling structure of claim 1, wherein the limiting device comprises a plurality of axially-arranged positioning holes (5) circumferentially distributed at intervals on the outer wall of the driving chamber I (3) of the shell I (1), a plurality of positioning pins (6) which are axially arranged are circumferentially distributed on the outer wall of the driving chamber II (4) of the shell II (2) at intervals, the positioning holes (5) and the positioning pins (6) are in one-to-one correspondence, when the first shell (1) and the second shell (2) are oppositely and fixedly connected, the positioning pin (6) is arranged in the corresponding positioning hole (5) in a penetrating way to ensure that the first shell (1) and the second shell (2) are fixedly connected in a limiting and involutive way, and an auxiliary limiting structure for enabling the first shell (1) and the second shell (2) to oppositely close is further arranged between the first shell (1) and the second shell (2).

3. The assembling structure of the motor shell according to claim 2, wherein the auxiliary limiting structure comprises a first assembling groove (7) which is axially arranged and circumferentially distributed on the inner wall of the first driving chamber (3) of the first shell (1), a second assembling groove (8) which is axially arranged and circumferentially distributed on the inner wall of the second driving chamber (4) of the second shell (2), and when the first shell (1) and the second shell (2) are oppositely and oppositely fixed, the first assembling groove (7) and the second assembling groove (8) are axially oppositely and oppositely abutted to limit ribs for limiting and assembling the outer wall of the motor stator.

4. The assembling structure of the motor shell according to claim 1 or 3, wherein the first shell (1) and the second shell (2) are rectangular boxes, the first driving chamber (3) is located in the rectangular box of the first shell (1), the second driving chamber (4) is located in the rectangular box of the second shell (2), and the first shell (1) and the second shell (2) are fixedly connected in an opposite involution mode through box opening end faces of the rectangular boxes.

5. The assembling structure of the motor shell according to claim 4, wherein the box opening end faces of the rectangular boxes of the first shell (1) and the second shell (2) are both a flat surface, bolt holes (9) which are axially arranged are circumferentially distributed on the box opening end faces of the rectangular boxes of the first shell (1) and the second shell (2) along the circumferential direction of the rectangular boxes, the bolt holes (9) of the first shell (1) are axially opposite to the bolt holes (9) of the second shell (2), and the first shell (1) and the second shell (2) are arranged in the bolt holes (9) of the rectangular boxes of the first shell (1) and the second shell (2) in a penetrating manner through bolts so that the first shell (1) and the second shell (2) are oppositely involutively fixed.

6. The assembling structure of the motor shell according to claim 5, wherein the open end faces of the driving chamber I (3) of the first shell (1) and the driving chamber II (4) of the second shell (2) are flat faces, the open end faces of the driving chamber I (3) of the first shell (1) and the driving chamber II (4) of the second shell (2) are circumferentially distributed with axially arranged bolt holes (9) at intervals, the bolt hole (9) of the driving chamber I (3) of the shell I (1) is axially opposite to the bolt hole (9) of the driving chamber II (4) of the shell II (2), the first shell (1) and the second shell (2) are arranged in bolt holes (9) of driving chambers of the first shell (1) and the second shell (2) in a penetrating mode through bolts, so that the first shell (1) and the second shell (2) are oppositely and fixedly connected.

7. The assembling structure of the motor shell according to claim 6, wherein a circular inner boss (10) is arranged on the inner wall of the closed end face of the cavity of the driving cavity I (3) of the shell I (1), a through hole I (11) is arranged on the circular inner boss (10) and is used for axially penetrating one end of a motor spindle, and radially arranged reinforcing ribs I (12) are circumferentially distributed at intervals between the circular inner boss (10) and the closed end face of the cavity of the driving cavity I (3); the inner wall of the closed end face of the cavity of the second driving cavity (4) of the second shell (2) is provided with an annular assembling position (13), the closed end face of the cavity of the second driving cavity (4) of the second shell (2) in the annular assembling position (13) is provided with a second through hole (14) for the axial penetration of the other end of the motor spindle, the closed end faces of the cavities of the annular assembling position (13) and the second driving cavity (4) are circumferentially distributed with a second reinforcing rib (15) which is radially arranged at intervals, and the first through hole (11) and the second through hole (14) are axially distributed relatively.