Variable-frequency clutch with novel traction structure

Abstract

The utility model discloses a variable-frequency clutch with a novel traction structure. The variable-frequency clutch comprises a shell, a connector and a connecting rod, wherein an input shaft is arranged at one end of the shell; the middle of the connecting rod is rotatably connected with the shell, one end of the connecting rod is connected with a traction line of the traction motor, the other end of the connecting rod is located on the side, away from the shell, of the connector, and the connecting rod can drive the connector to move on the input shaft when rotating. When one end of the connecting rod is driven by the traction motor to move in the direction away from the shell, the other end of the connecting rod drives the connector to move on the input shaft in the direction close to the shell. 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 new traction structure variable frequency clutch. Background Technology

[0002] The clutch is the main transmission component of a washing machine, enabling the switching between washing and spin-drying functions.

[0003] In the prior art, the clutch housing includes a clutch shaft, a washing shaft, a spin-drying shaft, a brake disc, and a planetary reduction gear system. The planetary reduction gear system is housed within the brake disc and includes a sun gear, planet gears, and an internal gear ring that mesh with each other. The planet gears are fixed to the planet carrier via planet shafts. The washing shaft passes through the housing from top to bottom and connects to the planet carrier. The spin-drying shaft passes through the housing from top to bottom and connects to the brake disc. The clutch shaft passes through the housing from bottom to top and connects to both the brake disc and the internal gear ring. The input shaft passes through the housing from bottom to top and is fixedly connected to the sun gear. When the connector is connected to the input shaft and the clutch shaft, the input shaft sequentially drives the connector and the clutch shaft. The rotation of the coupling shaft, brake disc, and spin-dry shaft constitutes the spin-drying mode. When the connector moves upward and disengages from the input shaft, connecting with the clutch shaft, the input shaft sequentially drives the planetary reduction gear train, planetary carrier, and washing shaft to rotate, which constitutes the washing mode. When the connector continues to move upward and disengages from the clutch shaft, and the connector is fixed to the housing and planetary carrier, the input shaft sequentially drives the planetary reduction gear train, brake disc, and spin-dry shaft to rotate, which constitutes the washing mode. The movement of the connector is driven by a connecting rod, which in turn is connected to the traction motor via a lever. In other words, the traction motor drives the lever, the lever drives the connecting rod, and the connecting rod drives the connector.

[0004] Therefore, existing clutches require the installation of a lever, lever pin, and lever spring during assembly. The lever connects the traction motor and the connecting rod, resulting in numerous assembly steps. Furthermore, initial positional deviations of the lever during installation can lead to operational instability. Therefore, it is necessary to optimize the clutch structure of the washing machine. Utility Model Content

[0005] This application provides a novel traction structure variable frequency clutch to solve the technical problems of the numerous clutch structures in washing machines.

[0006] This application provides a novel traction structure variable frequency clutch, comprising: a housing with an input shaft at one end, a connector movably sleeved on the input shaft, and a connecting rod; the middle part of the connecting rod is rotatably connected to the housing, one end of the connecting rod is connected to the traction line of the traction motor, and the other end of the connecting rod is located on the side of the connector away from the housing, and the connecting rod can drive the connector to move on the input shaft when it rotates; wherein, when one end of the connecting rod moves away from the housing under the drive of the traction motor, the other end of the connecting rod drives the connector to move closer to the housing on the input shaft; the middle part of the connecting rod is provided with a first through hole for installing a hinge, the housing is provided with a detachable connecting base, and the connecting rod is hinged to the connecting base.

[0007] By adopting the above technical solution, the connecting rod is directly connected to the traction line of the traction motor, which optimizes the setting of the traditional lever, simplifies the drive structure of the connecting rod, and improves the assembly efficiency of the clutch. At the same time, the direct drive of the connecting rod by the traction motor avoids the installation error caused by the intermediate transmission structure and improves the stability of clutch operation.

[0008] Preferably, the end of the connecting rod connected to the traction line has a groove, the opening of which faces away from the housing. A detachable positioning post is provided inside the groove, and the traction line is connected to the positioning post. A second through hole is provided on each of the two opposite inner walls of the groove. The two ends of the positioning post pass through the two second through holes and are located outside the connecting rod. Nuts are threaded to both ends of the positioning post to fix the positioning post to the connecting rod. A detachable positioning block is provided on the positioning post, and the end of the traction line away from the traction motor is connected to the positioning block. A second hole is provided on the positioning block for the positioning post to be inserted into. The positioning post is inserted into the second hole on the positioning block and is rotatably damped connected to the positioning block.

[0009] By adopting the above technical solution, the groove of the connecting rod provides space for the installation of the positioning post, reducing the space occupied by the positioning post. At the same time, the positioning post and the positioning block are installed in the groove of the connecting rod in a detachable manner, which facilitates the disassembly of the positioning post and the positioning block.

[0010] Preferably, a spring is provided between the connector and the lower end of the housing, with the two ends of the spring abutting against the housing and the connector, respectively.

[0011] By adopting the above technical solution, a spring is set between the connector and the housing. When the traction motor is de-energized, the restoring force of the spring drives the connector to reset. The simple structure is easy to manufacture.

[0012] Preferably, the connecting rod has a forked structure at one end near the connector, and the connector has a frustum for the forked structure to rest against.

[0013] By adopting the above technical solution, a forked structure is set on the connecting rod to abut against the frustum of the connector. The setting of the forked structure around the connector improves the stability of the connecting rod driving the connector to move, thereby improving the stability of the clutch operation.

[0014] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0015] 1. By directly connecting the connecting rod to the traction line of the traction motor, the traditional lever setting is optimized, the drive structure of the connecting rod is simplified, and the assembly efficiency of the clutch is improved. At the same time, the direct drive of the connecting rod by the traction motor avoids the installation error caused by the intermediate transmission structure and improves the stability of clutch operation.

[0016] 2. The groove in the connecting rod provides space for the installation of the positioning post, reducing the space occupied by the positioning post. At the same time, the positioning post and the positioning block are installed in the groove of the connecting rod in a detachable manner, which facilitates the removal of the positioning post and the positioning block.

[0017] 3. A spring is installed between the connector and the housing. When the traction motor is de-energized, the restoring force of the spring drives the connector to reset. The simple structure is easy to manufacture.

[0018] 4. A forked structure is set on the connecting rod to abut against the frustum of the connector. The forked structure surrounding the connector improves the stability of the connecting rod driving the connector's movement, thereby improving the stability of the clutch operation. Attached Figure Description

[0019] 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.

[0020] Figure 1 Exploded view of the connecting rod of a novel traction structure variable frequency clutch provided in this application;

[0021] Figure 2 Axonometric drawing of a novel traction structure variable frequency clutch provided in this application;

[0022] Figure 3 Axonometric drawing of the connecting rod and fixing component of a novel traction structure variable frequency clutch provided in this application;

[0023] Figure 4 Exploded view of the connecting rod and connector of a novel traction structure variable frequency clutch provided in this application;

[0024] Figure 5 An exploded view of the connector, input shaft, and spring of a novel traction structure variable frequency clutch provided in this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Input shaft; 2. Traction line; 3. Connecting rod; 31. Groove; 32. First through hole; 33. Positioning pin; 34. Positioning block; 341. Second hole; 35. Second through hole; 36. Forked structure; 4. Connector; 41. Frustum; 5. Fixing component; 51. Connecting base; 6. Spring. Detailed Implementation

[0026] This application provides a novel traction structure variable frequency clutch to solve the technical problem of the numerous structures in existing washing machine clutches.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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

[0032] like Figures 1 to 5 The embodiment of this application provides a novel traction structure variable frequency clutch, including: a housing 1 with an input shaft 11 at one end, a connector 4 movably sleeved on the input shaft 11, and a connecting rod 3; the middle part of the connecting rod 3 is rotatably connected to the housing 1, one end of the connecting rod 3 is connected to the traction line 2 of the traction motor, and the other end of the connecting rod 3 is located on the side of the connector 4 away from the housing 1, and the connecting rod 3 can drive the connector 4 to move on the input shaft 11 when it rotates; wherein, when one end of the connecting rod 3 moves away from the housing 1 under the drive of the traction motor, the other end of the connecting rod 3 drives the connector 4 to move on the input shaft 11 towards the housing 1.

[0033] Preferably, in the embodiment provided in this application, the housing 1 has a cavity, within which are housed an input shaft 11 driven by a motor, a clutch shaft, a washing shaft, a spin-drying shaft, a brake disc, and a planetary reduction gear system. The brake disc is located within the housing 1, and the planetary reduction gear system is located within the brake disc. The planetary reduction gear system includes a sun gear, planet gears, and an internal gear ring that mesh with each other. The planet gears are fixed to the planet carrier via planet shafts. The washing shaft passes through the housing 1 from top to bottom and connects to the planet carrier. The spin-drying shaft passes through the housing 1 from top to bottom and connects to the brake disc. The clutch shaft passes through the housing 1 from bottom to top and connects to both the brake disc and the internal gear ring, as shown in Figures 1 and 2. The lower end is recessed inward to form a bearing. The input shaft 11 passes through the housing 1 from bottom to top and is fixedly connected to the sun gear. A detachable fastener 5 is fixedly provided at the lower end of the housing 1. The fastener 5 and the lower end of the housing 1 can be fixed by one or more combinations such as screws and rivets. The fastener 5 is provided with a connecting base 51 that extends outward relative to the housing 1. The connecting rod 3 is rotatably fixed to the connecting base 51 by bolt hinge. The upper end of the connecting rod 3 is connected to the traction line 2 of the traction motor. The lower end of the connecting rod 3 abuts against the side of the connector 4 away from the housing 1. During the rotation of the connecting rod 3 relative to the housing 1, the connector 4 can move up and down.

[0034] like Figure 1 and Figure 2 As shown, the positioning block 34 has a second hole 341. The positioning block 34 is sleeved on the positioning post 33 through the second hole 341. The positioning block 34 and the positioning post 33 are rotatably damped connected. The upper end of the connecting rod 3 has a groove 31. Two through holes are symmetrically provided on the left and right sides of the groove 31. The positioning post 33 passes through the two through holes. The two ends of the positioning post 33 are fixed to the connecting rod 3 by nuts. The positioning block 34 is located in the groove 31. The traction line 2 of the traction motor is embedded in the positioning block 34.

[0035] like Figure 4As shown, the connector 4 is provided with a frustum 41. The diameter of the lower part of the connector 4 is smaller than that of the frustum 41 and protrudes relative to the frustum 41. The lower part of the connecting rod 3 that abuts against the connector 4 is provided with a forked structure 36. The forked structure 36 surrounds the lower part of the connector 4 and abuts against the frustum 41.

[0036] like Figure 5 As shown, a spring 6 is sleeved on the mounting shaft of the housing 1. The two ends of the spring 6 abut against the upper ends of the housing 1 and the connector 4, respectively. When the traction motor is de-energized, the restoring force of the spring 6 pushes the connector 4 back, so that the connector 4 is reset.

[0037] During use, the traction motor starts and pulls the upper end of the connecting rod 3 away from the housing 1 through the traction line 2. The connecting rod 3 rotates relative to the housing 1. At the same time, the lower end of the connecting rod 3 pushes the connector 4 to move closer to the housing 1. When the traction motor is de-energized, the connector 4 returns to its initial position under the push of the restoring force of the spring 6.

[0038] In the initial state, when connector 4 is connected to input shaft 11 and clutch shaft, input shaft 11 sequentially drives connector 4, clutch shaft, brake disc, and spin-dry shaft to rotate, entering the spin-dry mode. When connector 4 moves upward under the action of connecting rod 3, disengaging from input shaft 11 and connecting to clutch shaft, input shaft 11 sequentially drives planetary reduction gear train, planetary carrier, and washing shaft to rotate, entering the washing mode. When connector 4 continues to move upward under the action of connecting rod 3, disengaging from clutch shaft, and connector 4 is fixed to housing 1 and planetary carrier, input shaft 11 sequentially drives planetary reduction gear train, brake disc, and spin-dry shaft to rotate, entering the spin-dry mode. When the traction motor is de-energized, connector 4 returns to its initial position under the restoring force of spring 6, re-entering the spin-dry mode.

[0039] In this embodiment, the lever and other structures in the prior art are eliminated. The connector 4 is moved up and down by directly connecting the connecting rod 3 to the traction motor, thereby realizing the three-mode switching of dehydration shaft dehydration, washing shaft washing and dehydration shaft washing. While realizing the clutch mode switching, the clutch structure is simplified and the assembly and production efficiency of the equipment is improved.

[0040] 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.

[0041] 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.

[0042] 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 new traction structure variable frequency clutch, characterized by: It includes a housing (1) with an input shaft (11) at one end, a connector (4) movably sleeved on the input shaft (11), and a connecting rod (3); the middle part of the connecting rod (3) is rotatably connected to the housing (1), one end of the connecting rod (3) is connected to the traction line (2) of the traction motor, the other end of the connecting rod (3) is located on the side of the connector (4) away from the housing (1), and the connecting rod (3) can drive the connector (4) to move on the input shaft (11) when it rotates; When one end of the connecting rod (3) moves away from the housing (1) under the drive of the traction motor, the other end of the connecting rod (3) drives the connector (4) to move closer to the housing (1) on the input shaft (11).

2. A novel traction structure variable frequency clutch according to claim 1, characterized in that, The connecting rod (3) has a first through hole (32) in the middle for installing the hinge, and the housing (1) has a detachable connecting base (51), and the connecting rod (3) is hinged to the connecting base (51).

3. A novel traction structure variable frequency clutch according to claim 1, characterized in that, The connecting rod (3) is provided with a groove (31) at one end connected to the traction line (2). The opening of the groove (31) is away from the housing (1). A detachable positioning post (33) is provided in the groove (31). The traction line (2) is connected to the positioning post (33).

4. A novel traction structure variable frequency clutch according to claim 3, characterized in that, A second through hole (35) is provided on each of the two opposite inner walls of the groove (31). The two ends of the positioning post (33) pass through the two second through holes (35) and are located outside the connecting rod (3). Nuts are threaded to both ends of the positioning post (33) so that the positioning post (33) is fixedly connected to the connecting rod (3).

5. A novel traction structure variable frequency clutch according to claim 4, characterized in that, The positioning column (33) is provided with a detachable positioning block (34), and the end of the traction line (2) away from the traction motor is connected to the positioning block (34).

6. A novel traction structure variable frequency clutch according to claim 5, characterized in that, The positioning block (34) is provided with a second hole (341) suitable for the insertion of the positioning post (33). The positioning post (33) is inserted into the second hole (341) on the positioning block (34) and is rotatably damped connected to the positioning block (34).

7. A novel traction structure variable frequency clutch according to claim 1, characterized in that, A spring (6) is provided between the connector (4) and the lower end of the housing (1), and the two ends of the spring (6) abut against the housing (1) and the connector (4) respectively.

8. A novel traction structure variable frequency clutch according to claim 1, characterized in that, The connecting rod (3) has a forked structure (36) at one end near the connector (4), and the connector (4) has a frustum (41) for the forked structure (36) to abut against.

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