CN211734776U - Washing machine bearing seat and washing machine with same - Google Patents

Abstract

The utility model provides a washing machine bearing frame and have its washing machine, washing machine bearing frame package rubbing board body and bearing fixed part set up mounting groove and reference column on the plate body, the mounting groove is used for holding the fastener on the fixed outer bucket set up the locating hole on the reference column. Washing machine bearing frame and washing machine, through setting up less part, realize the location of stator and bearing frame and the fixed connection of stator and outer bucket, rational in infrastructure, the production of being convenient for improves assembly efficiency, guarantees the washing machine efficiency, reduction in production and cost of maintenance.

Description

Washing machine bearing seat and washing machine with same

Technical Field

The utility model relates to a washing machine field particularly, relates to a washing machine bearing frame and have its washing machine.

Background

At present, the driving mode of the drum washing machine mainly has two major directions, one of which is a belt transmission type drum washing machine represented by European brands such as Siemens; the other direction is a direct drive type drum washing machine represented by the korean brand such as LG. The difference between the two is that: the belt is used for transmission, and the kinetic energy generated by the motor is transmitted to a belt pulley of the washing machine through the belt, so that the drum is driven to rotate to wash clothes; the DD directly drives the transmission, and the rotor of the DD motor is directly connected with the main shaft of the roller to drive the roller to rotate and wash clothes. The DD direct drive is larger in motor load than belt drive, and has advantages over belt drive in the aspect of reducing noise of the washing machine.

For the existing motor direct drive type drum washing machine, the direct drive of the motor of the drum washing machine works as follows: the motor stator is fixed on a bearing seat, the bearing seat is connected with the barrel body into a whole (the bearing seat is embedded when the barrel body is produced), the motor rotor is fixed on a rotating shaft of an inner barrel (also called a roller), a bearing inner ring (rotating) is arranged on the rotating shaft of the inner barrel, and a bearing outer ring (not rotating) is fixed on the bearing seat. Namely, the motor stator is fixed with the barrel body, the motor rotor is fixed with the inner barrel, and the barrel body and the inner barrel rotate relatively.

The DD that is sold in the market at present directly drives drum type washing machine's bearing frame structure:

1. the bearing seat is mostly an aluminum casting or an iron casting, and is embedded and injected into the rear wall of the rear outer cylinder in the injection molding process of the rear outer cylinder;

2. the stator of the DD motor is fixed on a bearing seat through a bolt, and a pre-positioning structure for assembling the stator is arranged on the bearing seat so as to ensure the rotating concentricity of the assembled stator and the main shaft of the roller;

3. the rotor of the DD motor is fixedly connected to the roller main shaft through a bolt or a nut;

however, the fixed structure and the positioning structure of the DD stator are both designed on the bearing seat, so that the bearing seat is easily affected by a large load when the washing machine operates, the service life of the bearing seat is shortened, and a user is not good in experience.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a washing machine bearing frame and washing machine who has it, washing machine bearing frame package rubbing board body and bearing fixed part set up mounting groove and reference column on the plate body, the mounting groove is used for holding the fastener on the fixed outer bucket, the reference column is used for the positioning of bearing frame and stator.

The utility model discloses a bearing seat of a washing machine, which realizes the positioning of a stator during the installation by the bearing seat and the fixation of the stator and an outer barrel through the arranged installation groove and the positioning column, thereby not only ensuring the concentricity of a motor stator and a rotor, but also reducing the power loss caused by the non-coaxial of the motor stator and the rotor; and the external force load on the bearing seat during use is reduced, so that the production cost of the bearing seat is reduced, the structural strength of the bearing seat is ensured, the service life of the bearing seat is prolonged, the use performance of the washing machine is greatly improved, and the production cost and the maintenance cost are further saved.

Furthermore, the mounting groove is provided with a plurality of mounting grooves, and the outer wall surface of the mounting groove is provided with circumferential reinforcing ribs and/or radial reinforcing ribs.

This setting is through setting up a plurality of fastener and stator fixed connection on the one hand, guarantees the stability that stator and outer bucket are connected, and on the other hand circumference strengthening rib and/or radial strengthening rib that set up on the mounting groove outer wall have guaranteed the intensity of mounting groove avoids the mounting groove to take place to warp when using.

Furthermore, a plurality of circumferential reinforcing ribs are arranged on the plate body, and are respectively arranged between the two mounting grooves; the bearing fixing part is characterized in that a plurality of radial reinforcing ribs are arranged on the plate body, and the radial reinforcing ribs are arranged between the outer wall surface of the bearing fixing part and the outer contour of the plate body.

This setting is avoided plate body and mounting groove because the deformation that the atress is inhomogeneous leads to when using.

Furthermore, the positioning column is arranged between the two mounting grooves, and the positioning column is arranged on the radial reinforcing rib.

This setting discloses a structure that sets up of reference column, has guaranteed the structural strength of reference column on the one hand, and on the other hand also makes the stator after the assembly, avoids stress concentration or atress inhomogeneous to lead to the bearing frame to warp.

Furthermore, the plate body comprises a first plate body and a second plate body, the circumferential reinforcing ribs are arranged at the joint of the first plate body and the second plate body, and through holes are formed in the second plate body.

This setting is through set up the through-hole on the second plate body for plastics on the outer bucket pass the through-hole and fill in the through-hole, thereby reach the wrapping force of increase outer bucket plastics to the bearing frame, simultaneously, still reduced the material quantity of bearing frame, reach reduce cost's purpose.

Further, plate body 8 is the level and smooth curved plate structure of sunken form for the centre, the mounting groove the circumference strengthening rib the radial strengthening rib all sets up the sunken side at level and smooth curved plate.

This set up and reach and simplify outer bucket structure on the one hand, make things convenient for outer bucket shaping, improve the purpose of preparation machining efficiency, on the other hand also reaches the increase bearing fixed part degree of depth, mentions the supporting effect to bearing and pivot, has further increased the contact surface of moulding plastics of bearing frame with outer bucket, and the wrapping power of outer bucket to the bearing frame of increase.

Further, radial strengthening rib includes first strengthening rib, second strengthening rib, first strengthening rib sets up on the first plate body, the second strengthening rib sets up on the second plate body the circumference strengthening rib is kept away from one side of bearing fixed part sets up the third strengthening rib, the third strengthening rib sets up on the second plate body.

This setting discloses a structure of radial strengthening rib, and a plurality of radial strengthening ribs encircle the bearing fixed part setting and are the form of dispersing, through circumference strengthening rib and the radial strengthening rib that sets up, not only can strengthen the bulk strength of plate body, can also further strengthen outer bucket to the wrapping power of bearing frame, further strengthen the intensity at the bottom of the outer bucket of reinforcing.

The application also discloses a washing machine, include as above-mentioned washing machine bearing frame, still include outer bucket and motor, the bearing frame sets up the rear portion of outer bucket, the motor includes stator and rotor, the stator with the bearing frame passes through positioner location assembly, the stator with the rear end of outer bucket passes through connecting device fixed connection.

This setting discloses a washing machine, through adopting as above-mentioned bearing frame, with the stator of motor with the bearing frame passes through positioner location assembly to with the stator with the rear end of outer bucket passes through connecting device fixed connection, the assembly of the stator of being convenient for on the one hand guarantees the concentricity of motor stator and rotor, and on the other hand improves washing machine efficiency, reduces production and cost of maintenance.

Furthermore, the positioning device comprises a stator inserting column arranged on the stator, and the stator inserting column can be inserted into the positioning hole.

The device is simple in structure, convenient to produce and assemble.

Further, the connecting device comprises a fastening device and a connecting bolt, the fastening device and the connecting bolt are arranged on the outer barrel, the fastening device can be inserted into the mounting groove on the bearing seat, and the connecting bolt penetrates through a penetrating hole in the stator and is detachably connected with the fastening device.

This setting discloses a fastener's structure, simple structure, and the dismouting is high-efficient, and it is convenient to use, the production of being convenient for.

Compared with the prior art, washing machine bearing frame and washing machine that has it have following advantage:

washing machine bearing frame and washing machine, through setting up less part, realize the location of stator and bearing frame and the fixed connection of stator and outer bucket, rational in infrastructure, the production of being convenient for improves assembly efficiency, guarantees the washing machine efficiency, reduction in production and cost of maintenance.

Drawings

Fig. 1 is a schematic structural view illustrating an assembly of an outer tub and a bearing seat according to an embodiment of the present invention;

fig. 2 is a schematic front view of the assembly of the outer barrel and the bearing seat according to the embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2;

fig. 4 is a schematic structural diagram of a bearing seat according to an embodiment of the present invention;

fig. 5 is a schematic front view of a bearing seat according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of B-B in FIG. 5;

fig. 7 is a schematic structural view illustrating the assembly of the motor and the outer barrel according to the embodiment of the present invention;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

FIG. 9 is an enlarged view of a portion D of FIG. 7;

fig. 10 is a partial enlarged view of the stator and the tub at D in a non-bolt-fastened state;

description of reference numerals:

1-outer barrel, 3-fastening device, 301-connecting column, 302-bolt hole, 4-bearing seat, 5-bearing fixing part, 6-mounting groove, 7-positioning column, 701-positioning hole, 8-plate body, 801-first plate body, 802-second plate body, 9-circumferential reinforcing rib, 10-radial reinforcing rib, 1001-first reinforcing rib, 1002-second reinforcing rib, 1003-third reinforcing rib, 11-through hole, 12-stator, 1201-stator plug column, 1202-through hole, 13-rotor and 14-connecting bolt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

As shown in fig. 4-6, the present application provides a bearing seat for a washing machine, which comprises a plate body 8 and a bearing fixing portion 5, wherein the plate body 8 is provided with a mounting groove 6 and a positioning column 7, the mounting groove 6 is used for accommodating a fastening device 3 on a fixed outer barrel 1, and the positioning column 7 is used for assembling and positioning the bearing seat and a stator.

The arrangement discloses a bearing seat 4 of a washing machine, a bearing fixing part 5 is arranged at the center of the bearing seat 4, a bearing for supporting a rotating shaft can be arranged on the bearing fixing part 5, a plate body 8 is arranged in the direction of the radial extension of the bearing fixing part 5, the outer contour of the plate body 8 is approximately in a circular shape, an installation groove 6 is arranged on the plate body 8, the installation groove 6 is used for accommodating a fastening device 3 fixed on an outer barrel 1, the fastening device 3 can penetrate through the installation groove 6 to be detachably and fixedly connected with a stator 12, and a positioning column 7 is used for assembling and positioning the bearing seat and the stator, such as a positioning hole 701 arranged on the positioning column 7, and is used for positioning when the stator 12 is assembled; or, a positioning assembly hole may be formed in the stator 12, and the positioning column 7 is inserted into the positioning assembly hole of the stator 12 to realize the assembly positioning of the bearing seat and the stator.

The utility model discloses a bearing seat 4 of a washing machine, which realizes the fixation with an outer barrel 1 by positioning a stator 12 with the bearing seat 4 when the stator is installed through a mounting groove 6 and a positioning column 7, thereby not only ensuring the concentricity of a motor stator 12 and a rotor 13, but also reducing the power loss caused by the non-coaxial of the motor stator 12 and the rotor 13; and the external force load on the bearing seat 4 in use is reduced, so that the production cost of the bearing seat 4 is reduced, the structural strength of the bearing seat 4 is ensured, the service life of the bearing seat 4 is prolonged, the service performance of the washing machine is greatly improved, and the production cost and the maintenance cost are further saved.

As an example of the present invention, as shown in fig. 6, the bearing fixing portion 5 includes two bearing fixing accommodating cavities, and the two fixing accommodating cavities can be used for fixing a large bearing and a small bearing respectively.

Preferably, as a preferred embodiment of the present invention, the mounting groove 6 is provided with a plurality of circumferential ribs 9 and/or radial ribs 10 on the outer wall surface of the mounting groove 6.

This setting is through setting up a plurality of fastener 3 and stator 12 fixed connection on the one hand, guarantees the stability that stator 12 and outer bucket 1 are connected, and on the other hand circumference strengthening rib 9 and/or radial strengthening rib 10 that set up on the mounting groove outer wall have guaranteed the intensity of mounting groove 6 avoids mounting groove 6 to take place to warp when using.

As an example of the present invention, a plurality of circumferential reinforcing ribs 9 are disposed on the plate body 8, and the plurality of circumferential reinforcing ribs 9 are respectively disposed between two mounting grooves 6; the plate body 8 is provided with a plurality of radial reinforcing ribs 10, the radial reinforcing ribs 10 are arranged between the outer wall surface of the bearing fixing part 5 and the outer contour of the plate body 8, and the radial reinforcing ribs 10 on the same axis are separated by the mounting grooves 6.

This setting discloses a structure of circumference strengthening rib 9 and radial strengthening rib 10 that sets up on plate body 8, circumference strengthening rib 9 with the coaxial annular strengthening rib of plate body 8, radial strengthening rib 10 be for setting up bearing fixed part 5 outer wall face and along its radial extension and in the radial strengthening rib 10 of being separated by mounting groove 6 in the circumferential direction. This arrangement avoids deformation of the plate body 8 and the mounting groove 6 due to uneven stress when in use.

As a preferred example of the present invention, the positioning column 7 is disposed between two of the mounting grooves 6, and the positioning column 7 is disposed on the radial reinforcing rib 10.

This setting discloses a structure that sets up of reference column, has guaranteed the structural strength of reference column 7 on the one hand, and on the other hand also makes stator 12 after the assembly, avoids stress concentration or atress inhomogeneous to lead to bearing frame 4 to warp. As an example of the present invention, as shown in fig. 5, the positioning columns 7 are provided in two or more numbers, and the positioning columns 7 and the mounting grooves 6 are coaxially provided along the central axis of the plate body 8 in the axial direction.

As a preferred example of the present invention, the plate body 8 includes a first plate body 801 and a second plate body 802, the circumferential reinforcing rib 9 is disposed at a joint of the first plate body 801 and the second plate body 802, and the second plate body 802 is provided with a through hole 11.

In the arrangement, the through hole 11 is formed in the second plate body 802, so that the plastic on the outer barrel 1 passes through the through hole 11 and is filled in the through hole 11, the wrapping force of the plastic on the outer barrel 1 on the bearing seat 4 is increased, the material consumption of the bearing seat 4 is reduced, and the purpose of reducing the cost is achieved.

As a preferred example of the present invention, the plate body 8 is a smooth curved plate structure with a concave middle portion, and the mounting groove 6, the circumferential reinforcing rib 9, and the radial reinforcing rib 10 are all disposed on the concave side of the smooth curved plate.

This set up and reach and simplify outer barrel 1 structure on the one hand, make things convenient for outer barrel 1 shaping, improve the purpose of preparation machining efficiency, on the other hand also reaches the 5 degree of depth of increase bearing fixed part, mentions the supporting effect to bearing and pivot, has further increased the contact surface of moulding plastics of bearing frame 4 with outer barrel 1, and the wrapping power of outer barrel 1 to bearing frame 4 is increased.

As a preferred example of the present invention, the radial reinforcing rib 10 includes a first reinforcing rib 1001 and a second reinforcing rib 1002, the first reinforcing rib 1001 is disposed on the first plate body 801, and the second reinforcing rib 1002 is disposed on the second plate body 802. As an example of the present invention, a third reinforcing rib 1003 is disposed on one side of the circumferential reinforcing rib 9 away from the bearing fixing portion 5, and the third reinforcing rib 1003 is disposed on the second plate body 802.

This setting discloses a structure of radial strengthening rib, and a plurality of radial strengthening ribs 10 encircle bearing fixed part 5 and set up and be the form of dispersing, through circumference strengthening rib 9 and the radial strengthening rib 10 that sets up, not only can strengthen the bulk strength of plate body 8, can also further strengthen outer bucket 1 to the wrapping power of bearing frame 4, further strengthen the intensity at the bottom of the outer bucket 1 bucket.

Embodiment 2, the utility model also discloses a washing machine, as shown in fig. 1 ~ 10, including outer bucket 1, bearing frame 4 and motor, bearing frame 4 sets up the rear portion of outer bucket 1, the motor includes stator 12 and rotor 13, stator 12 with bearing frame 4 passes through positioner location assembly, stator 12 with the rear end of outer bucket 1 passes through connecting device fixed connection.

The arrangement discloses a washing machine, wherein the bearing seat 4 is adopted as in embodiment 1, the stator 12 of the motor is positioned and assembled with the bearing seat 4 through the positioning device, and the stator 12 is fixedly connected with the rear end of the outer barrel 1 through the connecting device, so that on one hand, the assembly of the stator 12 is facilitated, the concentricity of the stator 12 and the rotor 13 of the motor is ensured, the energy efficiency of the washing machine is improved, and the production and maintenance cost is reduced.

As a preferred example of the present invention, the positioning device includes a stator insertion column 1201 provided on the stator 12, and the stator insertion column 1201 can be inserted into the positioning hole 701.

As shown in fig. 8, when the stator 12 is assembled, the stator 12 and the bearing seat 4 are positioned by inserting the stator inserting column 1201 into the positioning hole 701, so that concentricity of the stator 12 and the bearing seat 4 is ensured when the stator 12 and the bearing seat 4 are installed, and the stator 12 and the bearing seat 4 can be relatively fixed. The device is simple in structure, convenient to produce and assemble.

As a preferred example of the present invention, the connecting device includes a fastening device 3 and a connecting bolt 14 provided on the outer tub 1, the fastening device 3 can be inserted into the mounting groove 6 on the bearing seat 4, and the connecting bolt 14 can be detachably connected with the fastening device 3 through a penetrating hole 1202 on the stator 12.

Specifically, as shown in fig. 7, 9, 10, as an example of the present invention, the fastening device 3 includes a connecting column 301, the connecting column 301 extends into the inner side of the mounting groove 6 and contacts the limiting position, a bolt hole 302 is provided on the connecting column 301, the connecting bolt 14 can extend into the bolt hole 302 for bolt connection, so as to fix the stator 12 and the outer barrel 1.

This setting discloses a fastener 3's structure, simple structure, and the dismouting is high-efficient, and it is convenient to use, the production of being convenient for. Fastener 3 is used for realizing stator 12 and outer barrel 1's releasable connection, can be in order to adopt bolted connection, also can adopt arbitrary detachable connected mode such as grafting, joint, rotary fit.

As a preferred example of the present invention, a mounting hole is disposed at the center of the bottom of the outer barrel 1, and the mounting hole is used for accommodating and fixing the bearing fixing portion 5 of the bearing seat 4, and the plurality of fastening devices 3 on the bottom of the outer barrel 1 can correspondingly pass through the plurality of mounting grooves 6 on the bearing seat 4.

As a preferred example of the present invention, the outer tub 1 may be integrally formed, or may be detachably fixed by a plurality of separate parts, for example, the front outer tub and the rear outer tub are detachably fixed by bolts. This setting has further strengthened the utility model discloses an application scope.

Washing machine, through setting up less part, realize stator 12 and bearing frame 4's location and stator 12 and outer barrel 1's fixed connection, rational in infrastructure, the production of being convenient for improves assembly efficiency, guarantees the washing machine efficiency, reduction in production and cost of maintenance.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The utility model provides a washing machine bearing frame, includes plate body (8) and bearing fixed part (5), its characterized in that set up mounting groove (6) and reference column (7) on plate body (8), mounting groove (6) are used for holding fastener (3) on the fixed outer bucket (1), reference column (7) are used for the positioning of bearing frame and stator.

2. The bearing housing for washing machine according to claim 1, characterized in that the mounting groove (6) is provided in plurality, and the outer wall surface of the mounting groove (6) is provided with a circumferential rib (9) and/or a radial rib (10).

3. The bearing housing for washing machines according to claim 1 or 2, characterized in that a plurality of circumferential stiffeners (9) are provided on said plate body (8), said circumferential stiffeners (9) being respectively provided between two of said mounting slots (6); the bearing fixing plate is characterized in that a plurality of radial reinforcing ribs (10) are arranged on the plate body (8), and the radial reinforcing ribs (10) are arranged between the outer wall surface of the bearing fixing part (5) and the outer contour of the plate body (8).

4. Bearing housing for a washing machine according to claim 3, characterized in that the positioning posts (7) are arranged between two mounting slots (6), the positioning posts (7) being arranged on the radial reinforcement ribs (10).

5. The bearing seat of the washing machine according to claim 2 or 4, characterized in that the plate body (8) comprises a first plate body (801) and a second plate body (802), the circumferential reinforcing rib (9) is arranged at the joint of the first plate body (801) and the second plate body (802), and a through hole (11) is arranged on the second plate body (802).

6. The bearing housing of a washing machine according to claim 5, characterized in that the plate body (8) is a smooth curved plate structure with a concave middle part, and the mounting groove (6), the circumferential reinforcing rib (9) and the radial reinforcing rib (10) are all arranged on the concave side of the plate.

7. The bearing housing of the washing machine according to claim 6, characterized in that the radial ribs (10) comprise a first rib (1001) and a second rib (1002), the first rib (1001) is disposed on the first plate body (801), the second rib (1002) is disposed on the second plate body (802), a third rib (1003) is disposed on one side of the circumferential rib (9) away from the bearing fixing portion (5), and the third rib (1003) is disposed on the second plate body (802).

8. A washing machine, characterized by comprising the washing machine bearing seat according to any one of claims 1-7, and further comprising an outer barrel (1) and a motor, wherein the bearing seat (4) is arranged at the rear part of the outer barrel (1), the motor comprises a stator (12) and a rotor (13), the stator (12) and the bearing seat (4) are positioned and assembled through a positioning device, and the stator (12) is fixedly connected with the rear end of the outer barrel (1) through a connecting device.

9. A washing machine according to claim 8, characterized in that the positioning means comprise a stator plug-in post (1201) provided on the stator (12), the stator plug-in post (1201) being insertable into a positioning hole (701) on the positioning post (7).

10. Washing machine according to claim 8, characterized in that the connection means comprise fastening means (3) provided on the outer tub (1) and a connection bolt (14), the fastening means (3) being insertable into the mounting groove (6) on the bearing block (4), the connection bolt (14) being detachably connected with the fastening means (3) through a through hole (1202) in the stator (12).

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