High-capacity stirring type washing machine clutch

Abstract

The utility model discloses a clutch of a high-capacity stirring type washing machine. The clutch comprises a clutch body, a first shaft body, a swing rod and a brake part, wherein a ratchet wheel set is arranged at one end of the clutch body; the first shaft body and the ratchet wheel set are coaxially arranged; a first spring used for maintaining the meshing state of the swing rod and the ratchet wheel set is arranged between the clutch body and the swing rod. The end, away from the ratchet wheel set, of the swing rod rotationally sleeves the first shaft body and is in transmission connection with the brake part. The other end of the brake component is connected with a traction wire of the traction motor; when the traction motor pulls the brake part to rotate, the brake part drives the swing rod to be disengaged from the ratchet wheel set. When the traction motor is powered off, the restoring force of the first spring drives the swing rod to rebound and mesh with the ratchet wheel set, and the swing rod pushes back the brake part. The clutch solves the technical problem that the clutch of the washing machine is various in structure, and achieves the technical effect of simplifying the structure of the clutch of the washing machine.

Description

Technical Field

[0001] This utility model relates to the field of washing machine clutch technology, specifically to a large-capacity agitator washing machine clutch. Background Technology

[0002] The clutch is a key transmission component of a washing machine, enabling the switching between washing and spin-drying functions. A typical clutch includes an impeller shaft, a spin-drying shaft, a mounting plate, a housing, a brake disc, a gearbox, ball bearings, a clutch shaft, an input shaft, a ratchet assembly, a rocker arm assembly, a first shaft, a brake arm, a clutch sleeve, and a clutch spring. The planetary reduction gear system is located inside the brake disc. The gearbox includes a meshing input shaft, planetary gears, and an internal gear ring. The planetary gears are fixed to the planet carrier via planetary shafts. The impeller shaft passes through the mounting plate from top to bottom and connects to the planet carrier. The spin-drying shaft passes through the mounting plate from top to bottom and connects to the brake disc. The clutch shaft passes through the housing from bottom to top and connects to the brake disc, the spin-drying shaft, and the clutch shaft. The internal gear rings are connected, and the input shaft passes through the housing from bottom to top and is fixedly connected to the sun gear. A clutch spring is also installed outside the clutch shaft, and the ratchet is sleeved on the clutch spring for connection. The agitator clutch is characterized by a double ratchet spring clutch structure of a washing and dehydration one-way clutch. The two ratchets are the same size but have opposite tooth directions and rotation directions. The dehydration tank is connected to the clutch dehydration shaft, and the agitator impeller is installed at the impeller shaft. The motor is connected to the clutch pulley via a belt for power input and gearbox reduction. The motor controls the forward and reverse reciprocating motion of the agitator.

[0003] In the prior art, one end of the rocker arm is provided with two pawls that simultaneously engage with two ratchet wheels, one above the other. A brake band is located between the clutch housing and the brake arm. The brake arm abuts against the rocker arm under the pull of the brake band and can drive the rocker arm to disengage from the ratchet wheels after the brake band is activated, thus entering the spin-drying mode. When the brake band is released, the rocker arm and the brake arm rebound under the restoring force of the spring between the rocker arm and the housing, and the rocker arm simultaneously engages with the two ratchet wheels, thus entering the washing mode.

[0004] In the existing technology, when installing brake bands, part of the brake band needs to be installed into the clutch housing, and the other part is connected to the brake arm through a pin. This assembly process is relatively complicated, and the installation accuracy of the brake band is difficult to ensure. This can cause excessive wear of the brake band or insufficient braking force of the brake band, causing the spin tub to rotate. At the same time, the use of brake bands has problems such as poor heat dissipation, rapid wear, and loud noise, requiring frequent inspection and replacement.

[0005] Therefore, it is necessary to optimize the clutch structure of the washing machine. Utility Model Content

[0006] This application provides a large-capacity agitator-type washing machine clutch to solve the technical problems of numerous washing machine clutch structures.

[0007] This application provides a large-capacity agitator washing machine clutch, comprising: a clutch body with a ratchet assembly at one end, a first shaft coaxially arranged with the ratchet assembly, a rocker arm that can be separably engaged with the ratchet assembly, and a brake element rotatably sleeved on the first shaft at one end; a first spring is provided between the clutch body and the rocker arm to maintain the engagement state between the rocker arm and the ratchet assembly; the end of the rocker arm away from the ratchet assembly is rotatably sleeved on the first shaft and connected to the brake element; the other end of the brake element is connected to the traction line of the traction motor; wherein, when the traction motor pulls the brake element to rotate, the brake element drives the rocker arm to disengage from the ratchet assembly; when the traction motor is de-energized, the restoring force of the first spring drives the rocker arm to rebound and engage with the ratchet assembly, and the rocker arm pushes back the brake element.

[0008] By adopting the above technical solution, the brake band and its components in the existing technology are optimized. The left and right rotation of the swing arm is completed by directly driving the brake component with the traction motor and using the first spring to drive the swing arm to reset. This completes the switching of the swing arm and the ratchet group's engagement state, thereby realizing the switching between dehydration and washing modes. While realizing the switching of clutch modes, the structure of the clutch is simplified, and the assembly and production efficiency of the equipment is improved.

[0009] Preferably, the brake and the rocker arm are sequentially mounted on the first shaft from bottom to top. The brake is provided with a support plate that extends upward. When the traction line pulls the brake, the end of the rocker arm away from the ratchet assembly is located on the rotation path of the support plate.

[0010] By adopting the above technical solution, a support plate is set on the brake component. When the brake component rotates, the support plate can push the swing arm to rotate synchronously. The simple structure is easy to manufacture.

[0011] Preferably, the support plate has a threaded first nut and a first screw on the side facing the swing arm. The first nut is fixed to the support plate, and the first screw passes through the first nut and the support plate in sequence. One end of the first screw abuts against the swing arm, and the distance of the first screw extending relative to the support plate can be adjusted by rotation.

[0012] By adopting the above technical solution, an adjustable first screw is set between the support plate and the swing arm. By adjusting the distance between the first screw and the support plate, the distance between the swing arm and the brake component is adjusted, thereby adjusting the braking effect of the brake component.

[0013] Preferably, the brake component is provided with a stop for abutting against the clutch body, and the stop and the clutch body abutting point are arc-shaped; when the traction cable drives the brake component to rotate, the stop disengages from the clutch body; when the traction motor is de-energized and the rocker arm drives the brake component to rebound, the clutch body is located on the rotation path of the brake component.

[0014] By adopting the above technical solution, a stop is set on the brake component to abut against the clutch body, so that after the traction motor is de-energized, the brake component can be stably stopped after rebounding to the preset position under the action of the spring. At the same time, the arc-shaped setting of the stop component prevents the brake component from continuously rubbing against the outer shell of the clutch body when it rebounds, reducing noise during operation and reducing wear between structures.

[0015] Preferably, a fourth hole is provided on one end of the brake component connected to the traction line, and a traction block is provided on one side of the fourth hole. The traction line passes through the fourth hole and is detachably connected to the traction block. The minimum diameter of the traction block is greater than the diameter of the fourth hole.

[0016] By adopting the above technical solution, the traction line is passed through the fourth hole on the fourth plate and fixed to the positioning block in a detachable manner, thus realizing the detachable assembly between the traction line and the braking component.

[0017] Preferably, the ratchet assembly includes a first ratchet and a second ratchet of the same size arranged coaxially, and a first pawl and a second pawl that are axially misaligned are provided on the lever. The first pawl and the second pawl are circumferentially spaced around the outer periphery of the ratchet assembly. The first pawl is adapted to engage with the first ratchet, and the second pawl is adapted to engage with the second ratchet.

[0018] By adopting the above technical solution, the first pawl and the second pawl are axially offset around the ratchet assembly on the rocker arm, which realizes the synchronous engagement or disengagement of the first pawl and the second pawl with the ratchet assembly. Moreover, the first pawl and the second pawl, which are circumferentially spaced, engage with the ratchet assembly in a clamping manner, thereby improving the stability of the rocker arm engagement.

[0019] Preferably, one end of the rocker arm is provided with a rotating shaft extending coaxially with the ratchet assembly, the second pawl is rotatably sleeved on the rotating shaft, a second spring is provided between the second pawl and the rocker arm, the second pawl can be radially deflected in the rotation direction of the second ratchet and reset by the second spring.

[0020] By adopting the above technical solution, a rotatable second pawl is set to engage with the second ratchet, which reduces the risk of misalignment and tooth breakage during engagement or disengagement, reduces noise generation during clutch operation, and improves the stability of clutch operation.

[0021] Preferably, one end of the rocker arm is provided with an axially extending limiting post, and the second pawl is provided with a first limiting member and a second limiting member respectively disposed on both sides of the limiting post. The second spring causes the first limiting member to abut against the limiting post, and the limiting post is located on the rotation path of the second limiting member.

[0022] By adopting the above technical solution, a limiting post is set on the rocker arm, and a first limiting member and a second limiting member are set on the second pawl to limit the rotation angle of the second pawl, so as to avoid the second pawl from rotating too much and causing engagement failure.

[0023] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0024] 1. The brake band and its components in the existing technology have been optimized. By directly driving the brake components with the traction motor and using the first spring to drive the swing arm to reset, the left and right rotation of the swing arm is completed, and the engagement state of the swing arm and the ratchet group is switched, thereby realizing the switching between dehydration and washing modes. While realizing the clutch mode switching, the clutch structure is simplified and the assembly and production efficiency of the equipment is improved.

[0025] 2. A support plate is installed on the brake component, and an adjustable first screw is installed between the support plate and the swing arm. By adjusting the distance between the first screw and the support plate, the distance between the swing arm and the brake component is adjusted, thereby adjusting the braking effect of the brake component.

[0026] 3. A stop is installed on the brake component to abut against the clutch body, so that after the traction motor is de-energized, the brake component can be stably stopped after rebounding to the preset position under the action of the spring. At the same time, the arc-shaped design of the stop component prevents the brake component from continuously rubbing against the outer shell of the clutch body when it rebounds, reducing noise during operation and reducing wear between structures.

[0027] 4. The traction wire is passed through the fourth hole on the fourth plate and fixed to the positioning block in a detachable manner, thus realizing the detachable assembly between the traction wire and the braking component.

[0028] 5. The first and second pawls are axially offset around the ratchet assembly on the rocker arm, which realizes the synchronous engagement or disengagement of the first and second pawls with the ratchet assembly. The first and second pawls, which are circumferentially spaced, engage with the ratchet assembly in a clamping manner, which improves the stability of the rocker arm engagement.

[0029] 6. The rotatable second pawl engages with the second ratchet, reducing the risk of misalignment and tooth breakage during engagement or disengagement, reducing noise during clutch operation, and improving clutch stability.

[0030] 7. Set a limit post on the rocker arm, and set a first limit member and a second limit member on the second pawl to limit the rotation angle of the second pawl, so as to avoid the second pawl from rotating too much and causing engagement failure. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A shaft view of the brake component and rocker arm assembled on the first shaft in a clutch of a large-capacity agitator washing machine provided in this application;

[0033] Figure 2 An isometric view of the braking component in a clutch of a large-capacity agitator washing machine provided in this application;

[0034] Figure 3 An isometric view of a clutch body with a first shaft in a large-capacity agitator washing machine clutch provided in this application;

[0035] Figure 4 A top view of a large-capacity agitator washing machine clutch provided in this application;

[0036] Figure 5 An isometric view of a clutch for a large-capacity agitator washing machine provided in this application;

[0037] Figure 6 An exploded view of the rocker arm and second ratchet pawl of a large-capacity agitator washing machine clutch provided in this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Clutch body; 11. First ratchet; 12. Second ratchet; 13. First shaft; 2. Rocker arm; 21. First pawl; 22. Second pawl; 221. First limiting member; 222. Second limiting member; 23. Limiting post; 3. Braking member; 31. First plate; 311. First hole; 32. Second plate; 33. Third plate; 331. Third hole; 332. Support plate; 34. Fourth plate; 341. Fourth hole; 35. Stop; 351. First rounded corner plate; 352. Second rounded corner plate; 41. First nut; 42. First screw; 51. Traction cable; 52. Traction block; 61. First spring; 62. Second spring. Detailed Implementation

[0039] This application provides a large-capacity agitator-type washing machine clutch to solve the technical problem of numerous structures in existing washing machine clutches.

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0044] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution. Example 1

[0045] like Figures 1 to 5 The embodiment of this application provides a large-capacity agitator washing machine clutch, including: a clutch body 1 with a ratchet assembly at one end, a first shaft 13 coaxially arranged with the ratchet assembly, a rocker arm 2 that can be separably engaged with the ratchet assembly, and a brake member 3 rotatably sleeved on the first shaft 13; the end of the rocker arm 2 away from the ratchet assembly is rotatably sleeved on the first shaft 13 and abuts against the brake member 3; the end of the brake member 3 away from the first shaft 13 is connected to the traction line 51 of the traction motor; wherein, when the traction motor pulls the brake member 3 to rotate, the brake member 3 drives the rocker arm 2 to disengage from the ratchet assembly.

[0046] More preferably, in the embodiments provided in this application, such as Figure 1 , Figure 3 and Figure 5As shown, the upper end of the clutch body 1 is provided with a ratchet assembly, which includes a first ratchet 11 and a second ratchet 12 arranged coaxially. One end of the rocker arm 2 is provided with a first pawl 21 and a second pawl 22, which respectively mesh with the first ratchet 11 and the second ratchet 12. A first shaft 13 is fixedly provided on the housing on one side of the clutch body 1. The first shaft 13 is arranged coaxially with the clutch body 1. The brake 3 and the rocker arm 2 are rotatably sleeved on the first shaft 13 from bottom to top. A first spring 61 is sleeved on the first shaft 13 between the rocker arm 2 and the brake 3. The first spring 61 provides the rocker arm 2 with a rebound force relative to the clutch body 1.

[0047] The braking component 3 includes a first plate 31, a second plate 32, and a third plate 33. The first plate 31 and the third plate 33 are parallel and symmetrically arranged on the same side of the second plate 32. The second plate 32 is perpendicular to the first plate 31 and the third plate 33. The first plate 31 is provided with a first hole 311, and the third plate 33 is provided with a third hole 331. The first hole 311 and the third hole 331 are coaxially arranged and their diameters are the same as the diameter of the first shaft 13. The first shaft 13 passes through the first hole 311 and the third hole 331 from bottom to top.

[0048] The second plate 32 is provided with a fourth plate 34 in the direction away from the first shaft 13. The part of the fourth plate 34 away from the first shaft 13 is provided with a fourth hole 341. The motor is located on one side of the fourth plate 34, and the opposite side of the first plate 31 is provided with a traction block 52. The traction wire 51 of the traction motor passes through the fourth hole 341 and is detachably wound and fixed on the traction block 52.

[0049] The first plate 31 and the third plate 33 are respectively provided with a first rounded corner plate 351 and a second rounded corner plate 352. The first rounded corner plate 351 and the second rounded corner plate 352 are combined to form a stop member 35. The first rounded corner plate 351 and the second rounded corner plate 352 are symmetrically arranged on the same side of the second plate 32. The arc portion of the first rounded corner plate 351 and the arc portion of the second rounded corner plate 352 simultaneously abut against the outer shell of the clutch body 1.

[0050] The swing arm 2 is sleeved above the third plate 33. The third plate 33 is provided with an upwardly extending support plate 332. The support plate 332 is provided with a threaded first nut 41 and a first screw 42. The head of the first screw 42 abuts against the swing arm 2. The screw of the first screw 42 passes through the first nut 41 and the support plate 332 in sequence. The first nut 41 abuts against the support plate 332.

[0051] Among them, the rocker arm 2, the first ratchet 11 and the second ratchet 12 are all made of "POM material".

[0052] During operation, in the initial state, the rocker arm 2 is engaged with the ratchet assembly, and the clutch is in the washing mode; when the traction cable 51 of the traction motor pulls the brake 3 to rotate, the brake 3 drives the rocker arm 2 to rotate and disengage from the ratchet assembly, and the clutch enters the spin-drying mode; when the traction motor is de-energized, the rocker arm 2 rebounds under the action of the spring and re-engages with the ratchet assembly, and the clutch enters the washing mode.

[0053] In this embodiment, the brake band and its related structures in the prior art are eliminated. The left and right rotation of the swing arm 2 is completed by directly driving the brake component 3 through the traction motor, thereby realizing the switching between dehydration and washing modes. While realizing the clutch mode switching, the clutch structure is simplified and the assembly and production efficiency of the equipment is improved. Example 2

[0054] Furthermore, based on the above embodiment 1, as follows: Figure 1 and Figure 4 As shown, the first pawl 21 is fixed to the middle part of the swing rod 2, and the second pawl 22 is rotatably sleeved on the pivot at the end of the swing rod 2. A limiting post 23 is also provided on the swing rod 2 at the pivot. The second pawl 22 is provided with a first limiting member 221 and a second limiting member 222, which are respectively located on both sides of the limiting post 23. A second spring 62 is provided between the second pawl 22 and the swing rod 2. The elastic force provided by the second spring 62 causes the first limiting member 221 to abut against the limiting post 23. When the swing rod... When lever 2 rotates away from the ratchet, the second ratchet 12 gradually begins to rotate. The second pawl 22 rotates slightly under the push of the teeth of the second ratchet 12. After lever 2 disengages from the ratchet, the second pawl 22 springs back to its original position under the restoring force of the second spring 62. When lever 2 returns to its original position and the second pawl 22 contacts the second ratchet 12, the second ratchet 12 is still rotating. The second pawl 22 collides with the teeth of the moving second ratchet 12 and rotates slightly, and is fixed after lever 2 returns to its original position.

[0055] In this embodiment, by setting a rotatable second pawl 22 to engage with the second ratchet 12, the risk of misalignment and tooth breakage during engagement or disengagement is reduced, thereby improving the stability of clutch operation.

[0056] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0057] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0058] This specification and accompanying drawings are merely illustrative examples of this application and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Therefore, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A clutch for a large-capacity agitator washing machine, characterized in that: The device includes a clutch body (1) with a ratchet assembly at one end, a first shaft (13) coaxially arranged with the ratchet assembly, a rocker arm (2) that can be separably engaged with the ratchet assembly, and a brake element (3) rotatably sleeved on the first shaft (13) at one end; a first spring (61) is provided between the clutch body (1) and the rocker arm (2) to maintain the engagement state between the rocker arm (2) and the ratchet assembly; the end of the rocker arm (2) away from the ratchet assembly is rotatably sleeved on the first shaft (13) and connected to the brake element (3) in a transmission connection; the other end of the brake element (3) is connected to the traction line (51) of the traction motor. When the traction motor pulls the brake (3) to rotate, the brake (3) causes the rocker arm (2) to disengage from the ratchet assembly; when the traction motor is de-energized, the restoring force of the first spring (61) drives the rocker arm (2) to rebound and engage with the ratchet assembly, and the rocker arm (2) pushes back the brake (3).

2. The clutch for a large-capacity agitator washing machine according to claim 1, characterized in that, The brake (3) and the rocker arm (2) are sequentially mounted on the first shaft (13) from bottom to top. The brake (3) is provided with a support plate (332), which extends upward. When the traction line (51) pulls the brake (3), the end of the rocker arm (2) away from the ratchet assembly is located on the rotation path of the support plate (332).

3. The clutch for a large-capacity agitator washing machine according to claim 2, characterized in that, The support plate (332) has a threaded first nut (41) and a first screw on the side facing the swing rod (2). The first nut (41) is fixed on the support plate (332). The rod of the first screw passes through the first nut (41) and the support plate (332) in sequence. One end of the first screw abuts against the swing rod (2). The distance of the rod of the first screw extending relative to the support plate (332) can be adjusted by rotation.

4. The clutch for a large-capacity agitator washing machine according to claim 1, characterized in that, The brake (3) is provided with a stop (35) for abutting against the clutch body (1). The stop (35) and the clutch body (1) are in an arc shape. When the traction line (51) drives the brake (3) to rotate, the stop (35) disengages from the clutch body (1). When the traction motor is de-energized and the rocker arm (2) drives the brake (3) to rebound, the clutch body (1) is located on the rotation path of the brake (3).

5. A large-capacity agitator-type washing machine clutch according to claim 1, characterized in that, The brake element (3) is provided with a fourth hole (341) at one end connected to the traction line (51). A traction block (52) is provided on one side of the fourth hole (341). The traction line (51) passes through the fourth hole (341) and is detachably connected to the traction block (52). The minimum diameter of the traction block (52) is greater than the diameter of the fourth hole (341).

6. A large-capacity agitator washing machine clutch according to claim 1, characterized in that, The ratchet assembly includes a first ratchet (11) and a second ratchet (12) of the same size arranged coaxially. The rocker arm (2) is provided with a first pawl (21) and a second pawl (22) that are axially misaligned. The first pawl (21) and the second pawl (22) are circumferentially spaced around the outer periphery of the ratchet assembly. The first pawl (21) is adapted to engage with the first ratchet (11), and the second pawl (22) is adapted to engage with the second ratchet (12).

7. A large-capacity agitator washing machine clutch according to claim 6, characterized in that, One end of the swing arm (2) is provided with a rotating shaft extending coaxially with the ratchet assembly. The second pawl (22) is rotatably sleeved on the rotating shaft. A second spring (62) is provided between the second pawl (22) and the swing arm (2). The second pawl (22) can be radially deflected in the rotation direction of the second ratchet (12) and reset by the second spring (62).

8. A large-capacity agitator-type washing machine clutch according to claim 7, characterized in that, One end of the swing arm (2) is provided with an axially extending limiting post (23). The second pawl (22) is provided with a first limiting member (221) and a second limiting member (222) respectively located on both sides of the limiting post (23). The second spring (62) causes the first limiting member (221) to abut against the limiting post (23). The limiting post (23) is located on the rotation path of the second limiting member (222).

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