Planetary gear anti-falling structure

Abstract

The embodiment of the utility model discloses a planetary gear anti-disengaging structure, and relates to the technical field of washing machine speed reducing mechanisms, the planetary gear anti-disengaging structure is used for the drainage traction speed reducing process of a washing machine and comprises a driving piece and a connecting piece, and the driving piece is provided with a driving wheel and a first positioning part; a second positioning part is arranged at the position, corresponding to the first positioning part, of the connecting piece; the first positioning part and the second positioning part are rotationally butted, so that the driving piece is rotationally connected with the connecting piece; wherein the driving piece is arranged in the drainage tractor, a driving device on the drainage tractor rotates the connecting piece through driving wheels on the driving piece, the drainage traction process of the washing machine is achieved, and the driving wheels on the driving piece can accurately correspond to each other by arranging a first positioning part and a second positioning part.

Description

Technical Field

[0001] The present application relates to the technical field of speed reduction mechanisms for washing machines, and in particular to a planetary gear anti-slip structure. Background Art

[0002] After the three-star center gear and the three-star shell of the existing drainage traction device are assembled, they are prone to misalignment and loosening during the turnover process. When the whole machine is assembled in an assembly line, it needs to be reassembled and inspected, which seriously affects the production efficiency during the assembly of the whole machine. If the misalignment is not discovered in time during assembly, the drainage traction device will not pull or get stuck when the whole machine is assembled and tested, resulting in functional failure.

[0003] In order to solve the problems of misalignment and poor disengagement of the three-star center gear during the rotation of the planetary gear assembly and avoid the failure of the drainage traction device, the structure of the three-star center gear and the three-star shell was improved. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a planetary gear anti-slip structure, which can accurately correspond the driving wheel on the driving member by providing a first positioning portion and a second positioning portion.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] The present application provides a planetary gear anti-slip structure, which is used in the drainage traction deceleration process of a washing machine, and includes:

[0007] A driving member, wherein the driving member is provided with a driving wheel and a first positioning portion;

[0008] A connecting member, wherein a second positioning portion is provided on the connecting member at a position corresponding to the first positioning portion, and the first positioning portion and the second positioning portion are rotatably connected to each other so that the driving member is rotatably connected to the connecting member;

[0009] Wherein, the driving member is arranged in the drainage traction device, and the driving device on the drainage traction device rotates the connecting member through the driving wheel on the driving member to realize the drainage traction process of the washing machine.

[0010] Optionally, in some embodiments of the present application, the first positioning portion is arranged in an annular shape on the driving member, and the first positioning portion includes a first boss, and a first fixing groove is formed in the first boss;

[0011] The second positioning portion is arranged in an annular shape on the connecting member, and the second positioning portion includes a second boss, and a second fixing groove is formed in the second boss;

[0012] The first boss is located in the second fixing groove and abuts against the second fixing groove so that the driving member is connected to the connecting member;

[0013] The inner diameter of the second fixing groove is equal to the outer diameter of the first boss.

[0014] Optionally, in some embodiments of the present application, a first abutment platform is further protruded in the second fixing groove, the outer diameter of the first abutment platform is equal to the inner diameter of the first fixing groove, and the first abutment platform is located in the first fixing groove;

[0015] The first abutting platform abuts against the bottom of the first fixing groove on one side facing the driving member.

[0016] Optionally, in some embodiments of the present application, the driving wheel is disposed in the first fixing groove, a through hole is opened on the connecting member at a position corresponding to the driving wheel, and the driving wheel is located in the through hole.

[0017] Optionally, in some embodiments of the present application, the first positioning portion is configured as a second abutment platform, the second positioning portion includes a third boss, a third abutment platform is formed in the third boss, the second abutment platform abuts and docks with the third abutment platform, and the third boss abuts against the driving member.

[0018] Optionally, in some embodiments of the present application, the first positioning portion is configured as a fourth abutment platform, the second positioning portion is configured as a fifth abutment platform, and the fourth abutment platform abuts against the fifth abutment platform.

[0019] Optionally, in some embodiments of the present application, an abutment groove is formed on the fifth abutment platform, and when the fourth abutment platform abuts against the fifth abutment platform, an opening of the abutment groove abuts against the fourth abutment platform.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In the embodiment of the present application, a first positioning portion on the driving member and a second positioning portion on the connecting member are provided to match the first positioning portion with the second positioning portion, so that the driving wheel on the driving member is connected to the through hole on the connecting member, thereby avoiding misalignment between the driving member and the connecting member, so that the driving wheel on the driving member cannot correspond to the through hole on the connecting member line. Specifically, the first positioning portion is provided with a first boss, and a first fixing groove is formed in the first boss. The second positioning portion on the connecting member is provided with a second boss, and a second fixing groove is formed in the second boss. The first boss is located in the second fixing groove and the outer diameter of the first boss is equal to the inner diameter of the second fixing groove, so that the driving wheel can be docked with the through hole, thereby realizing the assembly relationship between the driving member and the connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of an exploded structure of the assembly of a driving member and a connecting member provided in the first embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the overall cross-section structure of the planetary gear anti-slip structure provided in Example 1 of the present application;

[0025] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 A schematic diagram of the overall cross-section structure of the planetary gear anti-slip structure provided in Example 2 of the present application;

[0027] Figure 5 This is a schematic diagram of the overall cross-section structure of the planetary gear anti-slip structure provided in Example 3 of the present application;

[0028] Figure 6 A schematic diagram of the overall cross-section structure of the planetary gear anti-slip structure provided in the fourth embodiment of the present application;

[0029] Figure 7 A schematic diagram of the overall structure of the deceleration device provided in an embodiment of the present application;

[0030] Figure 8 It is a schematic diagram of the explosion decomposition structure of the deceleration device provided in Example 1 of the present application.

[0031] Description of reference numerals:

[0032] 100, driving member; 110, driving wheel; 120, first positioning portion; 121, first boss; 122, first fixing groove; 123, second abutment platform; 124, fourth abutment platform; 200, connecting member; 210, second positioning portion; 211, second boss; 212, second fixing groove; 213, first abutment platform; 214, third boss; 215, third abutment platform; 216, fifth abutment platform; 217, abutment groove; 220, through hole; 230, annular tooth; 240, fixing groove; 250, limit block; 300, planetary gear; 310, fixing hole; 400, output member; 410, output wheel; 420, fixing column; 430, fixing plate; 500, lubricating grease. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0034] Specifically, Figure 1 As shown, an embodiment of the present application provides a planetary gear anti-slip structure, which is used in the drainage deceleration process of a washing machine. The execution of this process is decelerated by a drainage traction device. Specifically, when the motor is energized, the single-phase winding will generate an axial magnetic field, which is converted into a radial magnetic field through the claw pole mechanism of the housing and the claw pole plate. This radial magnetic field interacts with the outer rotor magnet, causing the magnet to rotate at a synchronous speed. Since the inner and outer magnets are embedded together, the inner magnets will also rotate at the same speed, thereby generating a rotating magnetic field in the inner motor. This rotating magnetic field will cause the copper ring to induce eddy currents, thereby generating torque. As the motor starts working, this torque will be positioned through a linkage mechanism, thereby driving the gear set in the tractor to start rotating. The rotation of the gear set will drive the steel wire (or rack) to be drawn into the tractor, thereby pulling open the drain valve for drainage. In this process, the deceleration effect of the gear set is very critical. It can effectively increase the output torque so that the tractor has enough power to pull open the drain valve. When the drain valve is fully opened and drainage begins, the electrical control part inside the tractor will come into play, and the control circuit board will issue corresponding instructions according to the working status of the washing machine to ensure that the tractor starts to decelerate at the right time. The deceleration process is mainly achieved by controlling the current and voltage of the motor, so that the speed of the motor gradually decreases, thereby driving the gear set to decelerate.

[0035] During the deceleration process of the above-mentioned drainage tractor, a driving member 100 and a connecting member 200 are provided, a first positioning portion 120 is provided on the driving member 100, and a second positioning portion 210 is provided on the connecting member 200 at a position corresponding to the first positioning portion 120 of the driving member 100. The first positioning portion 120 is connected to the second positioning portion 210 to assemble the driving member 100 and the connecting member 200 together.

[0036] In the embodiment of the present application, various embodiments are provided for the first positioning portion 120 and the second positioning portion 210 to connect and cooperate the driving member 100 and the connecting member 200 .

[0037] Embodiment 1 of the present application:

[0038] like Figure 1-Figure 3 As shown, the first positioning portion 120 is configured as an annular groove design, wherein the first positioning portion 120 includes a first boss 121, so that the first boss 121 presents an annular design, a first fixing groove 122 is formed in the first boss 121, and the driving wheel 110 is installed in the first fixing groove 122.

[0039] The second positioning portion 210 is configured as an annular groove like the first positioning portion 120 , wherein the second positioning portion 210 includes a second boss 211 , so that the second boss 211 is annular in design, a second fixing groove 212 is formed in the second boss 211 , and a through hole 220 corresponding to the driving wheel 110 is opened at the bottom of the second fixing groove 212 .

[0040] When the driving member 100 and the connecting member 200 are assembled, the driving wheel 110 is docked through the through hole 220, and the first boss 121 is located in the second fixed groove 212 to limit the lateral movement of the second boss 211. In order to ensure the connection relationship between the driving member 100 and the connecting member 200, the outer diameter of the first boss 121 is equal to the inner diameter of the second fixed groove 212, so that the first boss 121 can abut against the second fixed groove 212 to prevent the first boss 121 from being offset.

[0041] A first abutment platform 213 is also protruded in the second fixing groove 212, wherein a through hole 220 is opened on the first abutment platform 213, and the through hole 220 is installed with the driving wheel 110, and the outer diameter of the first abutment platform 213 is equal to the inner diameter of the second fixing groove 212, so that the second fixing groove 212 is located between the first abutment platform 213 and the second boss 211, wherein, in the embodiment of the present application, the outer diameter of the first abutment platform 213 is equal to the inner diameter of the first boss 121, so that when the first positioning portion 120 and the second positioning portion 210 are docked, the first boss 121 is located in the second fixing groove 212 between the second boss 211 and the first abutment platform 213, which can strengthen the position matching relationship between the driving member 100 and the connecting member 200, and avoid the driving wheel 110 from being unable to correspond to the through hole 220.

[0042] When the driving member 100 is connected to the connecting member 200 , the first abutting platform 213 abuts against the bottom of the first fixing groove 122 on the side facing the driving member 100 .

[0043] Lubricating grease 500 is filled between the first boss 121 and the second boss 211 . The lubricating grease 500 can be filled into the first boss 121 and the second boss 211 to form a vacuum effect and achieve a tightly fitting connection.

[0044] Embodiment 2 of the present application:

[0045] like Figure 4 As shown, the first positioning portion 120 is configured as a second abutment platform 123 , the second positioning portion 210 includes a third boss 214 , a third abutment platform 215 is formed in the third boss 214 , the second abutment platform 123 abuts and docks with the third abutment platform 215 , and the third boss 214 abuts against the driving member 100 .

[0046] When the first positioning portion 120 is docked with the second positioning portion 210, the second abutment 123 and the third abutment 215 will limit the second abutment 123 through the third boss 214, so that the second abutment 123 can abut with the third abutment 215, which can avoid the second abutment 123 being unable to dock with the third abutment 215, wherein the height of the third boss 214 is equal to the sum of the heights of the second abutment 123 and the third abutment 215, so that when the second abutment 123 abuts with the third abutment 215, the third boss 214 can directly abut against the side position of the driving member 100 facing the connecting member 200, and at the same time, combined with the mutual cooperation relationship between the driving wheel 110 and the through hole 220, the driving member 100 can be connected with the connecting member 200.

[0047] In the above process, when the second abutment platform 123 on the driving member 100 abuts against the third abutment platform 215 on the connecting member 200, lubricating grease 500 is provided between the second abutment platform 123 and the third abutment platform 215. The lubricating grease 500 can be filled into the positions of the second abutment platform 123 and the third abutment platform 215 to form a vacuum effect and achieve a tightly fitting connection relationship.

[0048] Embodiment 3 of the present application:

[0049] like Figure 5 As shown, the first positioning portion 120 is configured as a fourth abutting platform 124 , the second positioning portion 210 is configured as a fifth abutting platform 216 , and the fourth abutting platform 124 abuts against the fifth abutting platform 216 .

[0050] Lubricating grease 500 is disposed between the fourth abutting platform 124 and the fifth abutting platform 216 . The lubricating grease 500 is disposed between the fourth abutting platform 124 and the fifth abutting platform 216 to form a vacuum effect, thereby achieving a tightly fitting connection relationship.

[0051] Embodiment 4 of the present application:

[0052] like Figure 6 As shown, the structure in the fourth embodiment can be improved based on the structure in the third embodiment, wherein an abutment groove 217 is provided on the fifth abutment platform 216, and the opening of the abutment groove 217 can directly abut the fourth abutment platform 124 when the fourth abutment platform 124 abuts the fifth abutment platform 216.

[0053] The space between the fourth abutting platform 124 and the fifth abutting platform 216 and the abutting groove 217 are filled with lubricating grease 500 . The lubricating grease 500 forms a vacuum effect between the fourth abutting platform 124 and the fifth abutting platform 216 to achieve a tightly fitting connection.

[0054] After the above four embodiments, the first positioning part 120 and the second positioning part 210 can be tightly connected, and the deceleration device is formed by the assembly relationship between the driving member 100 and the connecting member 200, so as to realize the deceleration process of the speed of the washing machine traction device.

[0055] The deceleration process is performed based on the cooperation between the plurality of planetary gears 300 and the output member 400 .

[0056] During the deceleration process, it is necessary to perform transmission deceleration through the planetary gear 300. Specifically, the driving member 100 in the deceleration device of the embodiment of the present application is rotationally connected to the output wheel 410 through the planetary gear 300, wherein the driving device in the drainage traction device abuts against the driving member 100, and an output wheel 410 is provided on the output member 400, and the output wheel 410 is connected to the output end of the traction device. The deceleration device is used to realize the speed deceleration process in the drainage traction device.

[0057] In the above deceleration process, if Figure 8 As shown, the driving wheel 110 is meshedly connected with a plurality of planetary gears 300. Three planetary gears 300 are provided. The three planetary gears 300 enclose a triangular structure. The driving wheel 110 is located in the middle of the triangular structure, and the teeth on the driving wheel 110 are meshed with the teeth of the three planetary gears 300. When the driving wheel 110 rotates, the three planetary gears 300 are rotated by the rotation of the driving wheel 110. In the embodiment of the present application, the three planetary gears 300 are separated from each other and have no meshing relationship with each other.

[0058] In the embodiment of the present application, three fixing columns 420 are arranged on the output member 400 in the direction toward the planetary gear 300. The three fixing columns 420 are arranged in an annular direction on the fixing plate 430 and are distributed circumferentially. The center point formed by the three fixing columns 420 is located on the extension line of the axis of the output wheel 410. The three fixing columns 420 are arranged corresponding to the position of the planetary gear 300. A fixing hole 310 is opened on the planetary gear 300. The radius of the fixing hole 310 is equal to the radius of the fixing column 420. The planetary gear 300 is sleeved on the fixing column 420 through the fixing hole 310, so that the rotation of the driving wheel 110 drives the rotation of the planetary gear 300.

[0059] In the above structure, three fixing columns 420 are installed on one side of the fixing plate 430, and an output wheel 410 is arranged on the other side of the fixing plate 430. The output wheel 410 is located at the center of the fixing plate 430. The arrangement of the planetary gear 300 on the fixing plate 430 can only make the rotation of the driving wheel 110 drive the rotation of the planetary gear 300 itself, but cannot drive the rotation of the output wheel 410. In order to realize the rotation of the output wheel 410, in the embodiment of the present application, an annular tooth 230 is arranged inside the connecting member 200. The annular tooth 230 is meshed and connected with the three planetary gears 300. When the driving wheel 110 rotates, the driving wheel 110 drives the planetary gear 300 to rotate. Since the three planetary gears 300 are meshed with the annular tooth 230, when the planetary gear 300 rotates, the rotation of the annular tooth 230 drives the rotation of the three planetary gears 300, thereby rotating the output wheel 410.

[0060] In the embodiment of the present application, since the radius of the annular gear 230 is larger than the radius of the planetary gear 300 and the radius of the driving wheel 110 , the rotation of the planetary gear 300 drives the annular gear 230 to rotate slowly, thereby reducing the rotation speed of the output wheel 410 .

[0061] In the embodiment of the present application, a fixing groove 240 is opened at a position corresponding to the output member 400 on the connecting member 200, and the radius of the fixing groove 240 is equal to the radius of the fixing plate 430. The fixing plate 430 is located in the fixing groove 240. In order to prevent the fixing plate 430 from being separated from the fixing groove 240, a plurality of limit blocks 250 are arranged on the groove wall of the fixing groove 240. In the embodiment of the present application, three limit blocks 250 are arranged, and the three limit blocks 250 can limit the fixing plate 430 to prevent the fixing plate 430 from falling off from the fixing groove 240.

[0062] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A planetary gear anti-slip structure, used in the drainage traction deceleration process of a washing machine, characterized in that: include: A driving member, wherein the driving member is provided with a driving wheel and a first positioning portion; A connecting member, wherein a second positioning portion is provided on the connecting member at a position corresponding to the first positioning portion, and the first positioning portion and the second positioning portion are rotatably connected to each other so that the driving member is rotatably connected to the connecting member; Wherein, the driving member is arranged in the drainage tractor, and the driving device on the drainage tractor rotates the connecting member through the driving wheel on the driving member to realize the drainage traction process of the washing machine; The first positioning portion is configured as a second abutment platform, the second positioning portion includes a third boss, a third abutment platform is formed inside the third boss, the second abutment platform abuts and docks with the third abutment platform, and the third boss abuts against the driving member.

2. The planetary gear anti-slip structure according to claim 1, characterized in that: The first positioning portion is arranged in an annular shape on the driving member, and the first positioning portion includes a first boss, and a first fixing groove is formed in the first boss; The second positioning portion is arranged in an annular shape on the connecting member, and the second positioning portion includes a second boss, and a second fixing groove is formed in the second boss; The first boss is located in the second fixing groove and abuts against the second fixing groove so that the driving member is connected to the connecting member; The inner diameter of the second fixing groove is equal to the outer diameter of the first boss.

3. The planetary gear anti-slip structure according to claim 2, characterized in that: A first abutment platform is also protruded in the second fixing groove, the outer diameter of the first abutment platform is equal to the inner diameter of the first fixing groove, and the first abutment platform is located in the first fixing groove; The first abutment platform abuts against the bottom of the first fixing groove on one side facing the driving member.

4. The planetary gear anti-slip structure according to claim 3, characterized in that: The driving wheel is arranged in the first fixing groove, a through hole is opened on the connecting member at a position corresponding to the driving wheel, and the driving wheel is located in the through hole.

5. The planetary gear anti-slip structure according to claim 1, characterized in that: The first positioning portion is configured as a fourth abutment platform, the second positioning portion is configured as a fifth abutment platform, and the fourth abutment platform abuts against the fifth abutment platform.

6. The planetary gear anti-slip structure according to claim 5, characterized in that: The fifth abutting platform is provided with an abutting groove, and when the fourth abutting platform abuts against the fifth abutting platform, the opening of the abutting groove abuts against the fourth abutting platform.

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