A brake device for a speed reduction clutch of a washing machine

Abstract

The utility model discloses a washing machine deceleration clutch's brake device, include: brake band subassembly, including brake band and fixed in the both ends of brake band's first brake band pin and second brake band pin, brake arm subassembly, including brake arm and brake arm pin, the through pin hole is set up on the brake arm, brake arm pin is installed in the through pin hole, one end of brake band is fixedly installed in the first position of brake arm through first brake band pin, the other end of brake band is fixedly installed in the second position of brake arm through second brake band pin, and the first position, second position are located two sides of the through pin hole respectively. The utility model discloses a washing machine deceleration clutch's brake device can realize the bidirectional braking of brake wheel, can cancel the design of the existing one -way bearing, avoids the dependence on one -way bearing, solves the technical problem of the braking mode of the existing one -way bearing + brake band.

Description

Technical Field

[0001] This utility model relates to the technical field of washing machine deceleration clutch equipment, specifically to a braking device for a washing machine deceleration clutch. Background Technology

[0002] Traditional washing machine reduction clutches need to perform different transmission and braking functions during washing and spin-drying processes to meet the operating requirements of the washing machine. Currently, common reduction clutches use a simple belt braking structure combined with a one-way bearing design to achieve unidirectional braking and reverse locking of the brake wheel.

[0003] In this structure, the band brake typically consists of a brake band, brake lever, and return spring. It applies radial clamping force to the brake wheel through mechanical or electromagnetic drive, thereby generating an effective friction braking effect in a single rotational direction (usually the reverse direction during washing). However, due to the design characteristics of the band brake, it cannot provide sufficient braking force for the reverse rotation of the brake wheel (usually the forward rotation direction during washing). In this case, it mainly relies on the one-way bearing (such as an overrunning clutch) installed inside the clutch to achieve reverse rotation locking and prevent the brake wheel from rotating freely in the opposite direction.

[0004] While this structure meets the basic braking requirements of the washing machine to some extent, it still has the following technical limitations:

[0005] Strong dependence on one-way braking: The band brake can only be effectively applied in a single direction of rotation. Reverse braking relies entirely on the one-way bearing. Long-term use may lead to wear of the one-way bearing and reduce braking reliability.

[0006] Uneven braking efficiency: The braking performance in both forward and reverse directions is asymmetrical. Reverse locking is achieved only through the mechanical meshing of a one-way bearing, which lacks flexible buffering and is prone to impact noise or component fatigue.

[0007] High maintenance costs: One-way bearings are precision components, and once they fail, the entire bearing needs to be replaced, which increases the complexity and cost of maintenance.

[0008] In view of the above, this utility model patent is hereby proposed. Utility Model Content

[0009] To solve the above problems, this utility model aims to provide a braking device for a washing machine deceleration clutch, specifically, the following technical solution is adopted:

[0010] A braking device for a washing machine deceleration clutch includes:

[0011] A brake band assembly includes a brake band and a first brake band pin and a second brake band pin fixed at both ends of the brake band;

[0012] A brake arm assembly includes a brake arm and a brake arm pin. A through pin hole is formed on the brake arm, and the brake arm pin is installed in the through pin hole. One end of the brake band is fixedly installed on a first position of the brake arm by a first brake band pin, and the other end of the brake band is fixedly installed on a second position of the brake arm by a second brake band pin. The first position and the second position are respectively located on both sides of the through pin hole.

[0013] As an optional embodiment of this utility model, the brake arm of this utility model has a brake bottom wall and two brake side walls located at opposite ends of the brake bottom wall. The brake bottom wall and the two brake side walls form a groove-shaped structure. The groove-shaped structure includes a first mounting groove located at the first end of the brake arm. The through pin hole is disposed through the two opposite brake side walls of the first mounting groove. The first position is a first brake band pin hole on the first mounting groove located on one side of the through pin hole. The second position is a second brake band pin hole on the first mounting groove located on the opposite side of the through pin hole. The first brake band pin hole and the second brake band pin hole are both through holes that penetrate the two opposite brake side walls of the first mounting groove. The first brake band pin is fixedly installed in the first brake band pin hole, and the second brake band pin is fixedly installed in the second brake band pin hole.

[0014] As an optional embodiment of this utility model, the brake band has narrowing sections at both ends, and the narrowing sections at both ends of the brake band are fixedly connected to the first brake band pin and the second brake band pin, respectively. The width of the narrowing section is smaller than the width of the first mounting groove.

[0015] As an optional embodiment of this utility model, a braking device for a washing machine deceleration clutch includes a traction connecting block. The groove structure includes a second mounting groove located at the second end of the brake arm, and the traction connecting block is engaged with the second mounting groove.

[0016] As an optional embodiment of this utility model, the traction device connecting block of this utility model has a card interface, the card interface has a card connector and a limiting member, the bottom wall of the second mounting groove is provided with a card hole, the second mounting groove is inserted into the card interface, the card connector is inserted into the card hole, and the limiting member abuts against and limits the second mounting groove.

[0017] As an optional embodiment of this utility model, the snap-fit ​​component of this utility model is a snap-fit ​​plate body that is disposed in the snap-fit ​​interface and extends at an angle from the first side to the second side for a certain length, wherein the first side and the second side are opposite sides inside the snap-fit ​​interface.

[0018] As an optional embodiment of the present invention, the limiting member of the present invention includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are snap-fit ​​plates that are disposed in the snap-fit ​​interface and extend at an angle from the second side toward the first side for a certain length. The first limiting member and the second limiting member respectively abut against the two opposite braking sidewalls of the second mounting groove.

[0019] As an optional embodiment of the present invention, the bottom of the two opposing braking sidewalls of the second mounting groove of the present invention are provided with limiting protrusions, and the first limiting member and the second limiting member respectively abut against the limiting protrusions of the two opposing braking sidewalls of the second mounting groove.

[0020] As an optional embodiment of this utility model, the traction connecting block of this utility model has a traction snap-fit ​​groove, the traction snap-fit ​​groove and the snap-fit ​​interface are located at opposite ends of the traction connecting block, and the traction snap-fit ​​groove is used to fix the traction line of the traction motor.

[0021] As an optional embodiment of this utility model, the washing machine deceleration clutch of this utility model includes a reducer housing and a brake wheel disposed inside the reducer housing. The brake arm assembly is mounted on the reducer housing. The reducer housing has a brake band window. The brake band wraps around the outer periphery of the brake wheel, and both ends of the brake band extend out from the brake band window.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention discloses a braking device for a washing machine deceleration clutch. Both ends of the brake band are fixedly mounted on the brake arm via a first brake band pin and a second brake band pin, respectively. Thus, regardless of whether the brake wheel rotates clockwise or counterclockwise, braking is achieved by pulling the brake arm to cause different areas of the brake band to engage with the brake wheel. Therefore, this braking device for a washing machine deceleration clutch enables bidirectional braking of the brake wheel, eliminating the need for existing one-way bearings and avoiding reliance on them, thus solving the technical problems associated with existing one-way bearing + brake band braking methods. Attached image description:

[0024] Figure 1 A three-dimensional structural schematic diagram of a braking device for a washing machine deceleration clutch according to an embodiment of this utility model;

[0025] Figure 2 An overall assembly diagram of the brake arm and traction device connecting block of this utility model embodiment;

[0026] Figure 3 A schematic diagram of the traction device connecting block according to an embodiment of this utility model;

[0027] Figure 4 This utility model provides a schematic diagram of the installation of a braking device for a washing machine deceleration clutch. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] See Figure 1 and Figure 4 As shown, the braking device of a washing machine deceleration clutch in this embodiment includes:

[0034] The brake band assembly includes a brake band 101 and a first brake band pin 102 and a second brake band pin 103 fixed at both ends of the brake band 101.

[0035] The brake arm assembly includes a brake arm 201 and a brake arm pin 210. The brake arm 201 has a through pin hole 207. The brake arm pin 210 is installed in the through pin hole 207. One end of the brake band 101 is fixedly installed on the brake arm 201 at a first position by a first brake band pin 102. The other end of the brake band 101 is fixedly installed on the brake arm 210 at a second position by a second brake band pin 103. The first position and the second position are respectively located on both sides of the through pin hole 207.

[0036] This embodiment of a washing machine deceleration clutch braking device has a brake band 101 whose two ends are fixedly mounted on the brake arm 210 via a first brake band pin 102 and a second brake band pin 103, respectively. Thus, regardless of whether the brake wheel rotates forward or backward, braking is achieved by pulling the brake arm 210, causing different areas of the brake band 101 to engage with the brake wheel 500. Therefore, this embodiment of a washing machine deceleration clutch braking device can achieve bidirectional braking of the brake wheel 500, eliminating the need for existing one-way bearings, avoiding reliance on one-way bearings, and solving the technical problems associated with existing one-way bearing + brake band braking methods.

[0037] As an optional implementation method in this embodiment, see Figure 2 As shown, the brake arm 201 in this embodiment has a brake bottom wall 204 and two brake side walls (brake upper side wall 205 and brake lower side wall 206) located at opposite ends of the brake bottom wall 204. The brake bottom wall 204 and the two brake side walls form a groove structure. The groove structure includes a first mounting groove 202 located at the first end of the brake arm 201. The through pin hole 207 is disposed through the two opposite brake side walls of the first mounting groove 202. The first position is a first brake band pin hole on the first mounting groove 202 located on one side of the through pin hole 207. The second position is a second brake band pin hole on the first mounting groove 202 located on the opposite side of the through pin hole 207. The first brake band pin hole and the second brake band pin hole are both through holes that penetrate the two opposite brake side walls of the first mounting groove 202. The first brake band pin 102 is fixedly installed in the first brake band pin hole, and the second brake band pin 103 is fixedly installed in the second brake band pin hole.

[0038] In this embodiment, the brake band 101 has narrowing sections 104 at both ends. The narrowing sections 104 at both ends of the brake band 101 are fixedly connected to the first brake band pin 102 and the second brake band pin 103, respectively. The width of the narrowing section 104 is smaller than the width of the first mounting groove 202. This facilitates the connection between the brake band 101 and the first mounting groove 202 without affecting the pulling of the brake band 101.

[0039] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, a braking device for a washing machine deceleration clutch in this embodiment includes a traction connecting block 300. The groove structure includes a second mounting groove 203 located at the second end of the brake arm 201, and the traction connecting block 300 is engaged with the second mounting groove 203.

[0040] In this embodiment, a braking device for a washing machine deceleration clutch is provided. The brake arm 201 is snapped into the traction connector block 300, enabling quick installation and preventing it from falling off. Furthermore, during the process of the traction motor pulling the traction connector block 300 and the brake arm 201, the brake arm 201 will not slide relative to the traction connector block 300, thus preventing the brake arm 201 from having an excessively short travel.

[0041] Specifically, in this embodiment, the traction device connecting block 300 has a locking interface 301, which contains a locking member 303 and limiting members (304, 305). A locking hole 208 is formed on the bottom wall of the second mounting groove 203. The second mounting groove 203 is inserted into the locking interface 301, and the locking member 303 is inserted into the locking hole 208. The limiting member abuts against the second mounting groove 203 for limitation. In this embodiment, the connection stability between the traction device connecting block 300 and the second mounting groove 203 of the brake arm 201 is achieved by inserting the locking member 303 into the locking hole 208 and by the limiting member abutting against the second mounting groove 203 for limitation.

[0042] The snap-fit ​​component 303 described in this embodiment is a snap-fit ​​plate body that extends at an angle from the first side to the second side within the snap-fit ​​interface 301 for a certain length. The first side and the second side are opposite sides within the snap-fit ​​interface 301.

[0043] The limiting member described in this embodiment includes a first limiting member 304 and a second limiting member 305. The first limiting member 304 and the second limiting member 305 are snap-fit ​​plates that are disposed in the snap-fit ​​interface 301 and extend at an angle from the second side toward the first side for a certain length. The first limiting member 304 and the second limiting member 305 respectively abut against the two opposite braking sidewalls of the second mounting groove 203.

[0044] In order to achieve the limiting engagement of the first limiting member 304, the second limiting member 305 and the two opposing braking sidewalls of the second mounting groove 203, in this embodiment, the bottom of the two opposing braking sidewalls of the second mounting groove 203 are provided with limiting protrusions 209, and the first limiting member 304 and the second limiting member 305 respectively abut against the limiting protrusions 209 of the two opposing braking sidewalls of the second mounting groove 203.

[0045] Furthermore, the traction connector block 300 described in this embodiment has a traction card slot 302. The traction card slot 302 and the card interface 301 are located at opposite ends of the traction connector block 300. The traction card slot 302 is used to fix the traction line of the traction motor.

[0046] See Figure 4 As shown, the washing machine reduction clutch of this embodiment includes a reducer housing and a brake wheel 500 disposed inside the reducer housing. The brake arm assembly is mounted on the reducer housing. The reducer housing has a brake band window 403. The brake band 101 surrounds the outer periphery of the brake wheel 500, and both ends of the brake band 101 extend out of the brake band window 403. Specifically, the reducer housing of this embodiment includes an upper reducer housing 402 and a lower reducer housing 401, which are fixedly connected to enclose an installation space for mounting the brake wheel 500. In this embodiment, the brake arm pin 210 of the brake arm assembly is fixedly mounted on the upper reducer housing 402.

[0047] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A braking device for a washing machine deceleration clutch, characterized in that, include: A brake band assembly includes a brake band and a first brake band pin and a second brake band pin fixed at both ends of the brake band; A brake arm assembly includes a brake arm and a brake arm pin. A through pin hole is formed on the brake arm, and the brake arm pin is installed in the through pin hole. One end of the brake band is fixedly installed on a first position of the brake arm by a first brake band pin, and the other end of the brake band is fixedly installed on a second position of the brake arm by a second brake band pin. The first position and the second position are respectively located on both sides of the through pin hole.

2. The braking device for a washing machine deceleration clutch according to claim 1, characterized in that, The brake arm has a brake bottom wall and two brake side walls located at opposite ends of the brake bottom wall. The brake bottom wall and the two brake side walls form a groove-shaped structure. The groove-shaped structure includes a first mounting groove located at the first end of the brake arm. A through pin hole is provided through the two opposite brake side walls of the first mounting groove. The first position is a first brake band pin hole on the first mounting groove located on one side of the through pin hole. The second position is a second brake band pin hole on the first mounting groove located on the opposite side of the through pin hole. The first brake band pin hole and the second brake band pin hole are both through holes that penetrate the two opposite brake side walls of the first mounting groove. The first brake band pin is fixedly installed in the first brake band pin hole, and the second brake band pin is fixedly installed in the second brake band pin hole.

3. The braking device for a washing machine deceleration clutch according to claim 2, characterized in that, Both ends of the brake band have narrowed sections, and the narrowed sections at both ends of the brake band are fixedly connected to the first brake band pin and the second brake band pin, respectively. The width of the narrowed section is less than the width of the first mounting groove.

4. The braking device for a washing machine deceleration clutch according to claim 2, characterized in that, The device includes a traction device connecting block, and the groove structure includes a second mounting groove located at the second end of the brake arm, wherein the traction device connecting block is engaged with the second mounting groove.

5. The braking device for a washing machine deceleration clutch according to claim 4, characterized in that, The traction device connecting block has a card interface, which contains a card connector and a limiting member. A card connector hole is opened on the bottom wall of the second mounting groove. The second mounting groove is inserted into the card interface, the card connector is inserted into the card connector hole, and the limiting member abuts against and limits the second mounting groove.

6. The braking device for a washing machine deceleration clutch according to claim 5, characterized in that, The card connector is a card connector plate that is disposed inside the card interface and extends at an angle from the first side to the second side for a certain length. The first side and the second side are opposite sides inside the card interface.

7. The braking device for a washing machine deceleration clutch according to claim 6, characterized in that, The limiting member includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are snap-fit ​​plates that extend at an angle from the second side toward the first side within the snap-fit ​​interface. The first limiting member and the second limiting member abut against two opposing braking sidewalls of the second mounting groove, respectively.

8. The braking device for a washing machine deceleration clutch according to claim 7, characterized in that, The bottom of the two opposing braking sidewalls of the second mounting groove has a limiting protrusion, and the first limiting member and the second limiting member respectively abut against the limiting protrusions of the two opposing braking sidewalls of the second mounting groove.

9. The braking device for a washing machine deceleration clutch according to claim 5, characterized in that, The traction connector block has a traction slot, and the traction slot and the card interface are located at opposite ends of the traction connector block. The traction slot is used to fix the traction line of the traction motor.

10. The braking device for a washing machine reduction clutch according to claim 1, characterized in that, The washing machine deceleration clutch includes a reducer housing and a brake wheel disposed inside the reducer housing. The brake arm assembly is mounted on the reducer housing. The reducer housing has a brake band window. The brake band wraps around the outer periphery of the brake wheel, and both ends of the brake band extend out from the brake band window.

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