CN115679632A - Balancer, balancing assembly and clothes treatment equipment - Google Patents

Abstract

The utility model relates to a clothing processing technology field provides a balancer, balanced subassembly and clothing treatment facility, and the balancer includes frame and at least one rolling member that is used for with the rolling contact of balancing ring, and the rolling member includes back shaft, at least one axle sleeve and at least one bearing, and the back shaft is connected to on the frame, and on the back shaft was located to the bearing housing, the axle sleeve cover was located on the bearing. The utility model provides a balancer, the cost of axle sleeve is lower and easily change, establishes the axle sleeve at the bearing overcoat, avoids the bearing to be worn and torn, can the effective control cost like this.

Description

Balancer, balancing component and clothes treatment equipment

Technical Field

The application relates to the technical field of clothes treatment, in particular to a balancer, a balancing assembly and clothes treatment equipment.

Background

In the related art, the laundry treating apparatus maintains eccentric balance of the laundry dehydrating stage by means of a balancing ring provided at the washing tub, and in particular, the balancing ring encloses a balancer, which moves in the balancing ring in a direction opposite to the eccentricity of the washing tub when the washing tub is eccentrically rotated, thereby balancing the eccentric mass of the washing tub. The balancer is usually in rolling contact with the inner surface of the balancing ring through a bearing to drive the balancer to move, and the bearing is easily worn.

Disclosure of Invention

In view of the above, embodiments of the present application are directed to providing a balancer, a balancing assembly and a laundry treating apparatus.

To achieve the above object, an aspect of the present invention provides a balancer configured in a balancing ring of a laundry treatment apparatus, including:

the balance ring comprises a frame and at least one rolling part which is used for being in rolling contact with the balance ring, wherein the rolling part comprises a support shaft, at least one shaft sleeve and at least one bearing, the support shaft is connected to the frame, the bearing sleeve is arranged on the support shaft, and the shaft sleeve is arranged on the bearing.

In some embodiments, the width of the sleeve is greater than the width of the bearing located therein in the axial direction of the support shaft.

In some embodiments, the rolling elements project radially outward of the vehicle frame along its circumferential path of motion, and the balancer includes a conductive contact projecting radially inward of the vehicle frame along its circumferential path of motion.

In some embodiments, the frame curves toward the outside of its circular motion trajectory.

In some embodiments, the frame is configured with two mounting plates arranged at an interval along the axial direction of the supporting shaft, the supporting shaft is located between the two mounting plates, two ends of the supporting shaft are respectively connected with the two mounting plates, and the bearing and the shaft sleeve are both located between the two mounting plates.

In some embodiments, the balancer includes a spacer that fits over the support shaft, the spacer being located between the mounting plate and the bearing adjacent the mounting plate.

In some embodiments, each of the rolling elements includes at least two of the bearings and one of the shaft sleeves, the shaft sleeve is disposed on the outer periphery of each of the bearings, and each of the bearings does not extend beyond the end of the shaft sleeve in the axial direction of the support shaft.

In some embodiments, the number of the rolling members is two, and the two rolling members are spaced apart in the moving direction of the balancer.

In some embodiments, the balancer includes a guide provided on the frame, the guide projecting inward of the frame along its circular path of motion.

In some embodiments, the guide member has a plate shape, and an end of the guide member away from the frame is formed with a step surface for abutting against the conductive ring.

Another aspect of the embodiments of the present application provides a balance assembly, including a balance ring and any one of the above balancers, where the balance ring forms an annular cavity, the balancer is located in the annular cavity, and an outer circumferential surface of the shaft sleeve is in rolling contact with a radial wall surface of the annular cavity.

In some embodiments, the balancer includes a ring gear surrounding a wall surface of the annular chamber on a radially inner side thereof, and the balancer includes a power member including a motor located on the frame and a gear rotationally connected to the motor, the gear protruding to an inner side of the frame along a circular motion locus thereof and meshing with the ring gear.

In some embodiments, the balancer includes a guide member disposed on the frame, the guide member protrudes from an inner side of the frame along a circumferential movement locus thereof, the balancing assembly includes a conductive ring disposed in the annular cavity, the conductive ring surrounds a wall surface of the annular cavity on a radially inner side thereof, the conductive ring is formed with an annular guide groove opening toward the guide member, and the guide member is slidably inserted into the annular guide groove.

In some embodiments, the guide member has a plate shape, and an end of the guide member away from the frame is formed with a step surface for abutting against the conductive ring.

An embodiment of the present application also provides a laundry treating apparatus, including:

a washing drum; and

the balance assembly of any preceding claim, the balance ring being coaxially arranged and rotating synchronously with the wash drum.

According to the balancer provided by the embodiment of the application, in the moving process of the balancer, the shaft sleeve keeps rolling friction with the radial wall surface of the annular cavity, and the friction resistance is small, so that the balancer can move rapidly. Compared with a shaft sleeve, the bearing is higher in cost, the manufacturing process is more difficult to control, the shaft sleeve is lower in cost and easy to replace, the shaft sleeve is sleeved outside the bearing, the bearing is prevented from being abraded, and therefore the cost can be effectively controlled.

Drawings

Fig. 1 is a schematic structural diagram of a balancer according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a balancing assembly according to an embodiment of the present application;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an exploded view of a portion of the structure shown in FIG. 1;

FIG. 5 is a schematic view of an assembly of a balancer and a balancing ring according to an embodiment of the present application;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is an enlarged view at C of FIG. 6;

fig. 8 is a partially enlarged schematic view of a balancing assembly according to an embodiment of the present application.

Description of the reference numerals

A balancer 100; a frame 10; a mounting plate 11; a rolling member 20; a support shaft 21; a sleeve 22; a bearing 23; a conductive contact 30; a gasket 40; a guide 50; a step surface 50a; a notch 50b; a power member 60; a gear 61; a bolt 70; a bumper 80; a balance ring 200; a ring cavity 200a; a conductive ring 400; annular guide groove 400a

Detailed Description

It should be noted that the embodiments and technical features of the embodiments in the present application may be combined with each other without conflict, and the detailed description in the detailed description should be understood as an explanation of the gist of the present application and should not be construed as an undue limitation to the present application.

In the description of the embodiments of the present application, the "moving direction" orientation or positional relationship of the balancer is based on the orientation or positional relationship in the normal use of the balancer, for example, the orientation or positional relationship shown in fig. 2, for example, the "axial direction of the support shaft" is the orientation or positional relationship shown in fig. 1, it is to be understood that these orientation terms are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Referring to fig. 1 to 4, an embodiment of the present invention provides an equalizer 100 configured in an equalizer ring 200 of a laundry treatment apparatus, wherein the equalizer 100 includes a frame 10 and at least one rolling element 20 configured to be in rolling contact with the equalizer ring 200, the rolling element 20 includes a supporting shaft 21, at least one bushing 22 and at least one bearing 23, the supporting shaft 21 is connected to the frame 10, the bearing 23 is sleeved on the supporting shaft 21, and the bushing 22 is sleeved on the bearing 23.

Taking the balancer 100 disposed in the balancing ring 200 as an example, please refer to fig. 2 and fig. 7, the balancing assembly provided in the embodiment of the present application includes the balancing ring 200 and the balancer 100 in any embodiment of the present application, the balancing ring 200 forms an annular cavity 200a, the balancer 100 is disposed in the annular cavity 200a, and the outer peripheral surface of the shaft sleeve 22 is in rolling contact with the radial wall surface of the annular cavity 200 a.

In the balancer 100 according to the embodiment of the present invention, the sleeve 22 keeps rolling friction with the radial wall surface of the annular chamber 200a during movement of the balancer 100, and the frictional resistance is small, so that the balancer 100 moves rapidly. Compared with the shaft sleeve 22, the cost of the bearing 23 is higher, the manufacturing process is more difficult to control, the cost of the shaft sleeve 22 is lower and easy to replace, the shaft sleeve 22 is sleeved outside the bearing 23, the bearing 23 is prevented from being abraded, and therefore the cost can be effectively controlled.

In one embodiment, referring to fig. 1 to 4, the width of the shaft sleeve 22 is greater than the width of the bearing 23 located therein along the axial direction of the supporting shaft 21. Thus, the contact area between the shaft sleeve 22 and the radial wall surface of the annular cavity 200a is large, the pressure on the radial wall surface of the annular cavity 200a is small, the strength requirement on the balance ring 200 is reduced, the thickness design requirement of the balance ring 200 is reduced to a certain extent, the manufacture is easy, and the cost is reduced. By increasing the width of the sleeve 22 to reduce the compressive stress on the radial wall of the annular chamber 200a, the radial wall of the annular chamber 200a can be stressed more efficiently at a lower cost.

In one embodiment, referring to fig. 7, the outer circumference of the sleeve 22 has a taper, so that the outer circumference of the sleeve 22 can roll along the radial wall of the annular cavity 200 a. Thus, when the sleeve 22 rolls along the radial wall surface of the annular chamber 200a, the contact area between the outer peripheral surface of the sleeve 22 and the radial wall surface of the annular chamber 200a is further increased.

Taking the balancing assembly as an example for a clothes treatment device, the embodiment of the present application provides a clothes treatment device, which comprises a washing drum and the balancing assembly in any embodiment of the present application, and the balancing ring 200 is coaxially arranged with the washing drum and synchronously rotates. That is, the rotation axis of the balance ring 200 coincides with the rotation axis of the washing tub. The balance ring 200 and the washing drum can be fixedly connected by screws, fasteners, welding and the like, so that the balance ring 200 rotates along with the washing drum.

The balancing component can be arranged at any position of the washing drum along the axial direction. For example, the first end of the washing drum in the axial direction, the second end of the washing drum in the axial direction, an intermediate position of the washing drum in the axial direction, and the like.

One or more balancing assemblies may be provided on each washing drum.

For example, in one embodiment, referring to fig. 2, the laundry treating apparatus may be a drum-type laundry treating apparatus, i.e., the rotation axis of the washing drum extends along a horizontal direction. In another embodiment, the laundry treating apparatus may also be a pulsator type laundry treating apparatus, i.e. the rotation axis of the washing drum extends in a vertical direction, which is not limited herein.

The laundry treating apparatus may be a washing machine, a dryer, a washer-dryer, or the like.

In one embodiment, the balancer 100 includes a control device disposed on the frame 10 that communicates with the balancer 100 to control the movement of the balancer 100 within the gimbal 200. That is, the movement of the balancer 100 is actively controlled by the control device.

When the washing drum rotates at a high speed, for example, at a speed greater than 150 rpm, and the load in the washing drum is eccentric, the washing drum may be eccentrically rotated, and the control device may control the balancer 100 to move in the balancing ring 200 according to the load eccentricity of the washing drum, so as to offset the eccentric mass of the washing drum, and suppress the eccentric amplitude of the washing drum, thereby reducing the vibration of the laundry treating apparatus.

In one embodiment, referring to fig. 1 and 3, the balancing assembly includes a ring gear surrounding a radially inner wall of the annular cavity 200a, the balancer 100 includes a power member 60, the power member 60 includes a motor disposed on the frame 10 and a gear 61 rotatably connected to the motor, and the gear 61 protrudes from an inner side of the frame 10 along a circular motion path thereof and is engaged with the ring gear. The motor drives the gear 61 to rotate, and the gear 61 moves along the ring gear, thereby moving the balancer 100 in a circular direction along the balancing ring 200. The gear 61 is engaged with the ring gear to prevent the balancer 100 from slipping during movement, and to improve the smoothness of the movement of the balancer 100.

In one embodiment, referring to fig. 1, 3 to 8, the balancer 100 includes a guide 50 disposed on the frame 10, and the guide 50 protrudes from the frame 10 along the inner side of the circular motion track. The balancing assembly includes a conductive ring 400 located in the annular cavity 200a, the conductive ring 400 surrounding a wall surface of the radially inner side of the annular cavity 200a, the conductive ring 400 being formed with an annular guide groove 400a opened toward the guide 50, the guide 50 being slidably inserted into the annular guide groove 400 a. The annular guide groove 400a serves as a guide and a stopper, and on one hand, the annular guide groove 400a can limit the axial movement of the guide member 50 along the support shaft 21, and the guide member 50 and the rolling members 20 can limit the radial displacement of the balancer 100 along the balancing ring 200, thereby improving the smoothness of the balancer 100 during movement. On the other hand, the balancer 100 can be quickly and smoothly moved along the conductive ring 400 under the guidance of the annular guide groove 400 a.

The specific shape of the guide 50 is not limited, and for example, in an embodiment, referring to fig. 1, 3 and 8, the guide 50 is plate-shaped, and a step surface 50a for abutting against the conductive ring 400 is formed at one end of the guide 50 away from the frame 10. The step surface 50a further restricts the balancer 100 from moving radially inward of the balancer ring 200.

In an embodiment, referring to fig. 8, the free end of the guiding element 50 and the annular guiding groove 400a are disposed at an interval along the radial inner wall surface of the balance ring 200, the step surface 50a abuts against the end surface of the conductive ring 400 along the radial direction of the balance ring 200, and a plurality of notches 50b for separating the step surface 50a are formed on the guiding element 50. In this way, the free end of the guide 50 is not in contact with the wall surface of the annular guide groove 400a along the radial inner side of the balance ring 200, and the contact area of the step surface 50a and the conductive ring 400 is small, thereby reducing frictional resistance between the guide 50 and the conductive ring 400 while ensuring smooth movement of the balancer 100.

In one embodiment, referring to fig. 1 and 3, the rolling elements 20 protrude from the vehicle frame 10 along the radial outer side of the circular motion path, and the balancer 100 includes a conductive contact 30, wherein the conductive contact 30 protrudes from the vehicle frame 10 along the radial inner side of the circular motion path. The conductive contact 30 is used to make conductive contact with the conductive ring 400. The conductive ring 400 provides power and the electricity needed for communication to the balancer 100. The conductive contact 30 is in sliding contact with the conductive ring 400. The number of the conductive rings 400 is at least two, and the balancer 100 takes power from at least one conductive ring 400 to take power required for movement. The balancer 100 communicates with the control apparatus through another conductive ring 400. Under the action of centrifugal force, the outer peripheral surface of the shaft sleeve 22 presses the wall surface on the radial outer side of the annular cavity 200a, the contact area between the shaft sleeve 22 and the wall surface on the radial outer side of the annular cavity 200a is large, the pressure on the wall surface on the radial outer side of the annular cavity 200a is small, and the requirement on the strength of the balance ring 200 is lowered.

It is understood that the number of the conductive rings 400 for supplying power may be one, two, or more, and when one of the conductive rings 400 is damaged, the rest of the conductive rings 400 can continue to supply power to the balancer 100, thereby improving the power supply reliability of the balancing assembly.

In the embodiments of the present application, a plurality means two or more.

The number of the conductive loops 400 used for communication may be one, two, or more. When one of the conductive rings 400 is damaged, the remaining conductive rings 400 can continue to communicate with the balancer 100, improving the communication reliability of the balancing components.

The number of the guiding members 50 is not limited, and in an exemplary embodiment, the number of the guiding members 50 is one. In another embodiment, referring to fig. 1 and 3, the number of the guiding members 50 is plural. The frame 10 is provided with the guide members 50 at intervals in the moving direction of the frame 10, and the frame 10 is also provided with the guide members 50 at intervals in the axial direction of the support shaft 21. A plurality of guides 50 having the same motion trajectory are located in the same annular guide groove 400 a. In this manner, the spacing between the guide 50 and the annular guide groove 400a is reinforced.

In one embodiment, referring to fig. 8, the conductive ring 400 has a substantially U-shaped cross section, the space inside the conductive ring 400 is an annular guide slot 400a, and the conductive contact 30 is a conductive pin structure extending into the annular guide slot 400a, so that the conductive contact 30 and the conductive ring 400 are in good conductive contact.

In one embodiment, referring to FIG. 3, the frame 10 is curved outwardly of its circular path of motion. That is, the center of the circular motion trajectory is located on the concave side of the frame 10. In this manner, movement of the frame 10 within the toroidal cavity 200a is further facilitated.

In one embodiment, referring to fig. 1 and 4, the frame 10 is configured with two mounting plates 11 spaced apart along the axial direction of the supporting shaft 21, the supporting shaft 21 is located between the two mounting plates 11, two ends of the supporting shaft 21 are respectively connected to the two mounting plates 11, and the bearing 23 and the shaft sleeve 22 are located between the two mounting plates 11. In this way, the bearing 23 and the sleeve 22 are assembled using the space between the two mounting plates 11, so that it is possible to avoid increasing the size of the balancer 100 in the axial direction of the support shaft 21, and the structure is simple and the installation is convenient. On the other hand, the two ends of the supporting shaft 21 are respectively connected with the two mounting plates 11, and the assembly of the supporting shaft 21 is more stable.

In one embodiment, referring to fig. 4 and 7, the balancer 100 includes a pad 40 sleeved on the supporting shaft 21, and the pad 40 is located between the mounting plate 11 and the bearing 23 adjacent to the mounting plate 11. That is, the spacer 40 is located between the mounting plate 11 and the bearing 23 closest to the mounting plate 11, and the spacer 40 plays a role of vibration damping and wear resistance.

In one embodiment, referring to fig. 4 and 7, each rolling element 20 includes at least two bearings 23 and a shaft sleeve 22, the shaft sleeve 22 is disposed around the outer periphery of each bearing 23, and each bearing 23 does not extend beyond the end of the shaft sleeve 22 along the axial direction of the support shaft 21. On the one hand, the width of the sleeve 22 in the axial direction of the support shaft 21 is increased as much as possible with cost effective control, and on the other hand, the force applied to the sleeve 22 by the bearing 23 is made more uniform.

In an exemplary embodiment, referring to fig. 4 and 7, each rolling element 20 includes two bearings 23 and a shaft sleeve 22, the shaft sleeve 22 is disposed around the two bearings 23, and end surfaces of the two bearings 23 facing the mounting plate 11 are flush with two end surfaces of the shaft sleeve 22.

The specific form of the support shaft 21 is not limited, and the support shaft 21 may be an optical axis or a stepped axis, for example.

The mounting manner of the support shaft 21 is not limited, and for example, in an embodiment, referring to fig. 4 and fig. 7, threaded holes are formed at two axial ends of the support shaft 21, a mounting hole is formed in the mounting plate 11, the shaft end of the support shaft 21 passes through the mounting hole, and a bolt 70 is inserted into the threaded hole from one side of the mounting plate 11 away from the support shaft 21 and is in threaded fit with the threaded hole. Thus, the support shaft 21 can be easily and quickly attached and detached.

The material of the sleeve 22 is not limited, and for example, the material of the sleeve 22 includes, but is not limited to, plastic or metal, etc. Metals include, but are not limited to, aluminum alloys, and the like.

In one embodiment, referring to fig. 1 and 3, two rolling members 20 are provided, and the two rolling members 20 are spaced apart from each other in the moving direction of the balancer 100. In this manner, it is convenient to further keep the balancer 100 moving smoothly.

In one embodiment, referring to fig. 1 and 3, the balancer 100 includes the impact preventing member 80, and the impact preventing member 80 is disposed at an end of the frame 10 in a moving direction of the balancer 100. The collision preventing member 80 serves to prevent a collision during the movement of the balancer 100.

The material of the bumper 80 is not limited, and the bumper 80 includes, but not limited to, rubber, silicon, etc. by way of example.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (15)

1. A balancer disposed in a balancing ring of a laundry treating apparatus, comprising:

the balance ring comprises a frame (10) and at least one rolling element (20) which is used for being in rolling contact with the balance ring (200), wherein the rolling element (20) comprises a supporting shaft (21), at least one shaft sleeve (22) and at least one bearing (23), the supporting shaft (21) is connected to the frame (10), the bearing (23) is sleeved on the supporting shaft (21), and the shaft sleeve (22) is sleeved on the bearing (23).

2. The balancer as claimed in claim 1, wherein the width of the boss (22) is larger than the width of the bearing (23) located therein in the axial direction of the support shaft (21).

3. The balancer as claimed in claim 1, wherein the rolling members (20) project radially outward of the vehicle frame (10) along its circumferential movement locus, the balancer (100) including a conductive contact portion (30), the conductive contact portion (30) projecting radially inward of the vehicle frame (10) along its circumferential movement locus.

4. The balancer as claimed in claim 1, wherein the frame (10) is curved toward the outside of its circular motion trajectory.

5. The balancer as claimed in claim 1, wherein the frame (10) is provided with two mounting plates (11) disposed at an interval in an axial direction of the support shaft (21), the support shaft (21) is located between the two mounting plates (11), and both ends of the support shaft (21) are connected to the two mounting plates (11), respectively, the bearing (23) and the boss (22) are located between the two mounting plates (11).

6. The balancer of claim 5 wherein the balancer (100) includes a spacer (40) that fits over the support shaft (21), the spacer (40) being located between the mounting plate (11) and the bearing (23) adjacent the mounting plate (11).

7. The balancer as claimed in claim 5 wherein each of said rolling elements (20) comprises at least two of said bearings (23) and one of said bushings (22), said bushings (22) being fitted around the outer periphery of each of said bearings (23), and each of said bearings (23) does not extend beyond the end of said bushing (22) in the axial direction of said support shaft (21).

8. A balancer as claimed in any one of claims 1 to 7 wherein there are two of said rolling members (20), two of said rolling members (20) being spaced apart in the direction of movement of said balancer (100).

9. The balancer as claimed in any one of claims 1 to 7, wherein the balancer (100) includes a guide (50) provided on the vehicle frame (10), the guide (50) being projected inside the vehicle frame (10) along its circular motion locus.

10. The balancer as claimed in claim 9, wherein the guide (50) is plate-shaped, and one end of the guide (50) remote from the frame (10) is formed with a step surface (50 a) for abutting against a conductive ring (400).

11. A balancing assembly, comprising a balancing ring and a balancer (100) according to any one of claims 1 to 8, wherein the balancing ring (200) forms an annular chamber (200 a), the balancer (100) is located in the annular chamber (200 a), and an outer circumferential surface of the sleeve (22) is in rolling contact with a radial wall surface of the annular chamber (200 a).

12. The balancing assembly according to claim 11, characterized in that it comprises a ring gear surrounding the radially inner wall of the annular chamber (200 a), the balancer (100) comprising a power member (60), the power member (60) comprising an electric motor located on the frame (10) and a gear (61) rotationally connected to the electric motor, the gear (61) projecting inside the frame (10) along its circumferential movement trajectory and meshing with the ring gear.

13. The balancing assembly according to claim 11, characterized in that the balancer (100) includes a guide member (50) provided on the vehicle frame (10), the guide member (50) projecting to an inner side of the vehicle frame (10) along a circumferential movement locus thereof, the balancing assembly includes a conductive ring (400) located in the annular cavity (200 a), the conductive ring (400) surrounding a wall surface of the annular cavity (200 a) at a radially inner side thereof, the conductive ring (400) being formed with an annular guide groove (400 a) opened to the guide member (50), the guide member (50) being slidably inserted in the annular guide groove (400 a).

14. The balancing assembly according to claim 13, characterized in that the guide (50) has a plate shape, and an end of the guide (50) remote from the frame (10) is formed with a stepped surface (50 a) for abutment with the conductive ring (400).

15. A laundry treating apparatus, comprising:

a washing drum; and

the balancing assembly of any one of claims 11 to 14, said balancing ring (200) being coaxially arranged and rotating synchronously with said washing drum.

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