CN218183173U

CN218183173U - Motor for cleaning machine

Info

Publication number: CN218183173U
Application number: CN202222610087.7U
Authority: CN
Inventors: 关磊; 秦云峰; 胡计涛
Original assignee: Kingclean Electric Co Ltd; Jiangsu Kingclean Intelligent Appliance Co Ltd
Current assignee: Kingclean Electric Co Ltd; Jiangsu Kingclean Intelligent Appliance Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-30
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a motor for a cleaning machine, which comprises a motor body and a gear box component connected with the motor body, wherein the motor body comprises a lower bracket connected with the gear box component; the gearbox assembly comprises a gearbox main body and a connecting sheet, wherein the gearbox main body is provided with a cavity shell for accommodating a gear; the connecting piece is integrally formed on the cavity shell and is provided with a plurality of first connecting holes, the lower support is correspondingly provided with a plurality of second connecting holes, and the first connecting holes and the second connecting holes are fixedly connected with each other through fixing pieces; the ratio of the distance between the central axis of at least one first connecting hole and the central axis of the cavity shell to the inner diameter of the cavity shell is 0.15-0.35. The utility model discloses can realize that motor body and gear box subassembly lug connection and volume are less, simple structure.

Description

Motor for cleaning machine

Technical Field

The utility model relates to a cleaning machine field, in particular to motor for cleaning machine.

Background

Cleaning machines are commonly used to flush contaminants generated or intruding during the manufacture, assembly, use, and maintenance of filter hydraulic systems; the device can also be suitable for the regular maintenance and filtration of working oil, improves the cleanliness, and avoids or reduces the faults caused by pollution, thereby ensuring the high performance, high reliability and long service life of hydraulic system equipment. An inner rotor motor or an outer rotor motor is often adopted by the existing cleaning machine as a motor for the cleaning machine.

Under the condition of the same rotating speed, the output torque of the traditional inner rotor motor is smaller than that of the outer rotor motor, and the inner rotor motor with the same motor capacity is higher than that of the outer rotor motor, large in size and not compact in structure. However, connecting holes for connecting the traditional outer rotor motor and the gear box are all arranged on the outer side of the cavity shell of the gear box, and in order to ensure the connection reliability of the motor body and the gear box, a metal connecting body needs to be added, so that the mechanism of the motor is complicated; because the metal connecting body exists, the gear box interface extends outwards so that the volume of the motor is increased, and the length of the output shaft of the motor is increased due to the existence of the metal connecting body, a bearing is required to be added in the metal connecting body to reduce the length of the output shaft of the motor, so that the material cost of the motor is high; meanwhile, the metal connector is used for connecting the motor body and the gear box, the tolerance accumulation of the metal connector has larger influence on the motor pump structure and the performance of the motor pump, and the size requirement of the metal connector is higher.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor for cleaning machine, it can realize motor body and gear box subassembly lug connection and volume less, simple structure.

The utility model discloses a following technical scheme realizes:

a motor for a cleaning machine comprises a motor body and a gear box assembly connected with the motor body, wherein the motor body comprises a lower bracket connected with the gear box assembly; the gearbox assembly comprises a gearbox main body and a connecting sheet, wherein the gearbox main body is provided with a cavity shell for accommodating a gear; the connecting piece is integrally formed on the cavity shell and is provided with a plurality of first connecting holes, the lower support is correspondingly provided with a plurality of second connecting holes, and the first connecting holes and the second connecting holes are fixedly connected with each other through fixing pieces; the ratio of the distance between the central axis of the at least one first connecting hole and the central axis of the cavity shell to the inner diameter of the cavity shell is 0.15-0.35.

Furthermore, the number of the first connecting holes is at least three, and the first connecting holes penetrate through the gear box assembly.

Furthermore, the first connecting holes all penetrate through the connecting piece, and at least one first connecting hole penetrates through the top wall of the cavity shell.

Furthermore, the connecting sheet is triangular and matched with the lower bracket in shape.

Further, the thickness of the connecting piece is at least 3mm higher than the top wall of the cavity shell.

Further, the connection piece is provided with the through-hole, cavity shell inside cavity is in order to be formed with the cavity, the cavity is including the main cavity room that is used for holding the gear and the accessory chamber that is used for holding the tip under the motor body, main cavity room, accessory chamber and through-hole communicate each other.

Further, the gear box assembly further comprises a sealing part, the sealing part is arranged in the first connecting hole, and the ratio of the distance between the central axis of the first connecting hole and the central axis of the cavity shell to the inner diameter of the cavity shell is 0.15-0.35.

Furthermore, the second connecting hole is a threaded hole, and the motor body is in threaded connection with the gear box assembly through the first connecting hole and the second connecting hole.

Further, the sealing portion comprises a plug and a sealing ring, the plug is provided with a groove, and the sealing ring is arranged in the groove.

Further, motor body still includes the oil blanket, the oil blanket sets up in the through-hole and with the lateral wall butt of through-hole.

Compared with the prior art, the utility model has the advantages of:

1. the first connecting hole with the ratio of the distance between the central shafts of the central shaft and the cavity shell to the inner diameter of the cavity shell being 0.15-0.35 is arranged, so that the motor body is directly connected with the gear box assembly, the structure of the motor for the cleaning machine is simplified, the volume of the motor is reduced, the influence of tolerance accumulation on the performance of the motor for the cleaning machine in the assembling process is reduced, and the assembling precision of the motor body and the gear box assembly is improved.

2. Through the connection piece with lower carriage shape looks adaptation and the cooperation that the ratio of the distance between the center pin of center pin and cavity shell and the cavity shell internal diameter is 0.15 ~ 0.35's first connecting hole for the first connecting hole of connection piece all sets up around the cavity, very big reduction the distance that the connection piece extends to the cavity shell outside, make the structure of motor for the cleaning machine compacter and make the volume of gear box subassembly littleer.

3. Through setting up the connection piece that thickness is higher than cavity shell top wall 3mm at least, improve the intensity of connection piece, it is more firm when making connection piece and lower carriage be connected.

4. By adopting the connection mode that the motor body is directly connected with the gear box assembly, the oil seal can be directly abutted against the inner wall of the connecting sheet, the sealing structure is simplified, and the sealing part only needs to seal the first connecting hole of which the ratio of the distance between the central shaft and the central shaft of the cavity shell to the inner diameter of the cavity shell is 0.15-0.35, so that the size of the sealing part is reduced, and the sealing effect is improved; meanwhile, the length of the output shaft of the motor is reduced, the vibration and the noise of the motor are reduced, and the structure of the motor is further simplified.

Drawings

Fig. 1 is a schematic structural view of a motor for a cleaning machine according to a preferred embodiment of the present invention;

FIG. 2 is a plan sectional view of a motor for the washer of FIG. 1;

FIG. 3 is a plan sectional view of the motor for the washer of FIG. 1;

FIG. 4 is a cross-sectional view of section F-F of FIG. 2;

FIG. 5 is a partially exploded perspective view of the motor for the washer of FIG. 1;

FIG. 6 is a top view of the gear box assembly of FIG. 5.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, a motor for a cleaning machine according to a preferred embodiment of the present invention includes a motor body 2, a gear box assembly 1 connected to the motor body 2, and a fixing member 3. The motor body 1 is fixedly connected with the gear box component 2 through a fixing part 3.

With further reference to fig. 2 to 6, the gear box assembly 1 includes a gear box main body 10, a connecting piece 11, and a sealing portion 12. The gearbox body 10 is provided with a cavity housing 102 for housing the gears. The chamber case 102 is hollow inside to form the chamber 101. The cavity 101 comprises a main chamber 103 for housing the gear and a secondary chamber 104 for housing the lower end 22 of the motor body 2. The connecting piece 11 is integrally formed on the cavity housing 102, and the thickness of the connecting piece 11 is at least 3mm higher than the top wall 105 of the cavity housing 102. The shape of the connecting piece 11 is adapted to the shape of the lower bracket 20 (to be described later). Meanwhile, the connecting piece 11 is provided with a through hole 112, a first step surface 113, a second step surface 114 and a plurality of first connecting holes 111, which are matched with the motor body 2. The first connection holes 111 are used for accommodating the fixing members 3 and penetrate through the gear box assembly 1. Specifically, the first connection holes 111 all penetrate through the connection piece 11, and at least one first connection hole 111 penetrates through the top wall 105 of the cavity housing 102. Preferably, the connecting piece 11 is provided with at least three first connecting holes 111. The ratio of the distance H1 between the central axis 1001 of the at least one first connection hole 111 and the central axis 1002 of the chamber body housing 102 to the inner diameter H2 of the chamber body housing 102 is 0.15-0.35; the through hole 112, the main chamber 103, and the sub-chamber 104 communicate with each other. The first step surface 113 and the second step surface 114 are respectively abutted against the motor body 2 (to be described later) to limit the motor body 2. The sealing part 12 is disposed in the first connection hole 111 in which the ratio of the distance H1 between the central axis 1001 and the central axis 1002 of the chamber body case 102 to the inner diameter H2 of the chamber body case 102 is 0.15 to 0.35, and includes a plug 121 and a sealing ring 122. The plug 121 abuts against the first side wall 115 enclosing the first connection hole 111, the middle portion of the side wall 116 of the plug 121 is recessed to form a groove 123, and the sealing ring 122 is disposed in the groove 123 to improve the sealing performance when the plug 121 abuts against the first side wall 115. The ratio of the distance H1 between the central shaft 1002 of the central shaft 1001 and the cavity shell 102 and the inner diameter H2 of the cavity shell 102 is 0.15-0.35 of the first connecting hole 111, so that the motor body 2 is directly connected with the gear box assembly 1, the structure of the motor for the cleaning machine is simplified, the volume of the motor is reduced, the influence of tolerance accumulation on the performance of the motor for the cleaning machine in the assembling process is reduced, and the assembling precision of the motor body 2 and the gear box assembly 1 is improved. By arranging the connecting piece 11 matched with the lower support 20 in shape, the first connecting holes 111 of the connecting piece 11 are all arranged around the cavity 101, so that the distance of the connecting piece 11 extending to the outer side of the cavity shell 102 is greatly reduced; meanwhile, compared with the prior art in which the connection between the motor and the gear box component is realized through a metal connector, the structure provided by the utility model realizes the direct connection between the motor body 2 and the gear box component 1, so that the structure of the motor for the cleaning machine is more compact and the volume of the gear box component 1 is smaller; through setting up a plurality of first connecting holes 111, stability when improving motor body 2 and gear box subassembly 1 and being connected.

The motor body 2 includes a driver 23, a lower bracket 20 connected with the gear box assembly 1, and an oil seal 21. The motor body 2 adopts an outer rotor motor. The lower bracket 20 includes a bracket main body 202, an upper connection portion 203 connected with the driver 23, and a lower connection portion 204 connected with the gear box assembly 2. The upper connecting portion 203 is provided above the holder main body 202 and is integrally formed with the holder main body 202. The lower connection portion 204 is provided below the holder main body 202 and is integrally formed with the holder main body 202. The holder main body 202 is provided with a plurality of second coupling holes 201 corresponding to the first coupling holes 111, and the second coupling holes 201 are used to receive the fixing pieces 3. Specifically, the bracket main body 202 is of a triangular structure, and each corner is provided with a second connection hole 201, and the connection piece 11 is of a triangular structure matched with the bracket main body 202, and each corner is provided with a first connection hole 111. The oil seal 21 is sleeved on the output shaft 231 of the driving part 23, and the side wall of the oil seal 21 is abutted against the inner wall 118 of the through hole 112; meanwhile, the bottom wall 211 of the oil seal 21 abuts the second step surface 114; preferably, a second gasket 233 is provided between the bottom wall of the oil seal 21 and the second step surface 114 to enhance sealing. The driving member 23 is inserted into the through hole 112 and abuts against the first step surface 113 of the connecting piece 11. Preferably, a first gasket 232 is disposed between the driving member 23 and the first step surface 113 to enhance sealing. By adopting the driving part 23 as the driving element of the motor for the cleaning machine in the present application, the motor for the cleaning machine in the present application has larger torque under the condition of the same rotating speed, and has higher height, small volume and more compact structure under the condition of the same capacity compared with the motor for the cleaning machine adopting the inner rotor motor as the driving element. Through setting up the connection piece that thickness exceeds 3mm at least for the roof 105 of cavity shell 102, improve the intensity of connection piece and lower carriage, make both connect more firmly.

The fixing member 3 sequentially penetrates through the first connecting hole 111 and the second connecting hole 201 to fixedly connect the motor body 2 and the gear box assembly 1. Specifically, the fixing member 3 is provided in plural, and the number of the fixing member 3 is the same as the number of the first connection holes 111. The fixing member 3 is a screw, the first connection hole 111 is a through hole, and the second connection hole 201 is a threaded hole; so as to realize that the motor body 2 is in threaded connection with the gear box component 1 through the fixing piece 3. The fixing member 3 may also be a fastening member such as a pin or a bolt, and the first connecting hole 111 and the second connecting hole 201 may also be configured as a pin hole coupled with the pin or a through hole coupled with the bolt. The fixing piece 3 is matched with the connecting piece 11 and the bracket main body 202 which are of the triangular structure, so that the connecting piece 11 and the lower bracket 20 form a triangular fixed connecting structure, and the connection between the connecting piece 11 and the lower bracket 20 is more stable.

When the gearbox assembly is assembled, the lower end surface 205 of the middle and lower brackets 20 of the motor body 2 is abutted against the upper end surface of the connecting sheet 11 in the gearbox assembly 1, and the first connecting hole 111 is communicated with the second connecting hole 201. At this time, the driver 23 abuts against the first step surface 113 of the connecting piece 11 via the first gasket 232, and the bottom wall 211 of the oil seal 21 abuts against the second step surface 114 via the second gasket 233. The fixing member 3 sequentially penetrates through the first connection hole 111 and the second connection hole 201. The sealing part 12 is then installed in the first connection hole 111 penetrating the chamber housing 102 and disposed under the fixing member 3.

As can be seen from the above detailed description: the ratio of the distance H1 between the central shaft 1002 of the central shaft 1001 and the cavity shell 102 and the inner diameter H2 of the cavity shell 102 is 0.15-0.35 of the first connecting hole 111, so that the motor body 2 is directly connected with the gear box assembly 1, the structure of the motor for the cleaning machine is simplified, the volume of the motor is reduced, the influence of tolerance accumulation on the performance of the motor for the cleaning machine in the assembling process is reduced, and the assembling precision of the motor body 2 and the gear box assembly 1 is improved. By providing the connecting piece 11 having a thickness higher by at least 3mm with respect to the top wall 105 of the cavity case 102, the strength of the connecting piece 11 is improved, and the connecting piece 11 is more stably connected to the lower bracket 20. Through the connection piece 11 with the lower carriage 20 shape looks adaptation and the cooperation that the ratio of distance H1 between the center pin 1002 of center pin 1001 and cavity shell 102 and the center pin of cavity shell 102 internal diameter H2 is first connecting hole 111 of 0.15 ~ 0.35 for the first connecting hole 111 of connection piece 11 all sets up around cavity 101, very big reduction the distance that connection piece 11 extends to the cavity shell 102 outside, the structure that makes the motor for the cleaning machine is compacter and makes gear box subassembly 1's volume littleer. By adopting the connection mode that the motor body 2 is directly connected with the gear box component 1, the oil seal 21 can be directly abutted against the inner wall 118 of the connecting sheet 11, and the sealing structure is simplified; compared with a motor for a cleaning machine connected by a metal connecting piece, the motor needs to be provided with the sealing part 12 between the metal connecting piece and the gear box, the sealing part 12 in the application only needs to seal the first connecting hole 111 of which the ratio of the distance H1 between the central shaft 1001 and the central shaft 1002 of the cavity shell 102 to the inner diameter H2 of the cavity shell 102 is 0.15-0.35, so that the size of the sealing assembly 12 is greatly reduced, and the sealing effect is improved; meanwhile, the length of the output shaft 231 of the motor is reduced, and the vibration and the noise of the motor are reduced, so that the motor for the cleaning machine does not need to be additionally provided with a bearing on the output shaft 231, and the structure of the motor is further simplified.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A motor for a cleaning machine comprises a motor body (2) and a gear box assembly (1) connected with the motor body (2), and is characterized in that the motor body (2) comprises a lower bracket (20) connected with the gear box assembly (1); the gearbox assembly (1) comprises a gearbox main body (10) and a connecting piece (11), wherein the gearbox main body (10) is provided with a cavity shell (102) for containing a gear; the connecting piece (11) is integrally formed on the cavity shell (102) and is provided with a plurality of first connecting holes (111), the lower support (20) is correspondingly provided with a plurality of second connecting holes (201), and the first connecting holes (111) and the second connecting holes (201) are fixedly connected with each other through fixing pieces (3); the ratio of the distance (H1) between the central axis (1001) of at least one first connecting hole (111) and the central axis (1002) of the cavity shell (102) to the inner diameter (H2) of the cavity shell (102) is 0.15-0.35.

2. The motor for a washing machine according to claim 1, characterized in that the number of the first connecting holes (111) is at least three and all penetrate through the gear box assembly (1).

3. The electric machine for washing machines according to claim 2, characterized in that said first connection holes (111) all penetrate the connection tabs (11) and at least one first connection hole (111) penetrates the top wall (105) of the chamber shell (102).

4. The electric machine for washing machines according to claim 1, characterized in that said connecting piece (11) is triangular in shape and adapted to the shape of the lower bracket (20).

5. The electric machine for washing machines according to claim 1, characterized in that the thickness of the connecting piece (11) is at least 3mm higher than the top wall (105) of the housing (102).

6. The motor for the washing machine according to any one of claims 1 to 5, characterized in that the connecting piece (11) is provided with a through hole (112), the cavity housing (102) is hollow inside to form a cavity (101), the cavity (101) comprises a main chamber (103) for accommodating the gear and a sub chamber (104) for accommodating the lower end (22) of the motor body (2), and the main chamber (103), the sub chamber (104) and the through hole (112) are communicated with each other.

7. The motor for a washing machine according to any one of claims 1 to 5, wherein the gear housing assembly (1) further comprises a sealing part (12), the sealing part (12) is disposed in the first connection hole (111), and a ratio of a distance (H1) between a central axis (1001) of the first connection hole (111) and a central axis (1002) of the chamber housing (102) to an inner diameter (H2) of the chamber housing (102) is 0.15 to 0.35.

8. The motor for the cleaning machine is characterized in that the second connecting hole (201) is a threaded hole, the fixing piece (3) is a screw, and the motor body (2) is in threaded connection with the gear box assembly (1) through the fixing piece (3).

9. The motor for the washing machine as claimed in claim 7, wherein the sealing portion (12) comprises a plug (121) and a sealing ring (122), the plug (121) is provided with a groove (123), and the sealing ring (122) is arranged in the groove (123).

10. The motor for a washer according to claim 9, characterized in that the motor body (2) further comprises an oil seal (21), the oil seal (21) being disposed in the through hole (112) and abutting against an inner wall (118) of the through hole (112).