Planetary gear fixing structure

Abstract

The planetary gear fixing structure is applied to the drainage traction speed reduction process of a washing machine and comprises a driving part, an output part, annular teeth and a fixing sleeve, and driving teeth are arranged on the driving part; a planetary gear and output teeth are arranged on the output piece, and the driving teeth are rotationally connected with the planetary gear; the planetary gear is sleeved with the annular gear, an abutting face is arranged on the annular gear, and the output piece is located on the abutting face. The fixing sleeve is assembled on the annular tooth, the output piece is located between the annular tooth and the fixing sleeve, the fixing sleeve is provided with the limiting part, the limiting part limits and fixes the output piece, the output piece can be limited and fixed by arranging the fixing sleeve and the limiting part, and the situation that the planetary gear cannot be connected with the driving tooth is avoided.

Description

Technical Field

[0001] The present application relates to the field of washing machine drainage structures, and in particular to a planetary gear fixing structure. Background Art

[0002] When the washing machine is being pulled by the drainage traction device, the Samsung shell is stuck through the recovery control system, and the rotation of the drainage traction device motor rotor drives the clutch gear, which engages with the Samsung center gear through the pawl of the clutch gear, thereby transmitting the output force of the motor to the traction device transition gear through the Samsung center gear, planetary gears, and Samsung output gear, and further outputs through the fan-shaped output gear to achieve traction.

[0003] In the process of traction transmission, the planetary gear on the output part plays the role of speed change and traction transmission. This component is very important. The existing planetary gear is directly installed on the column of the Samsung output gear. The column has no special design. In the turnover process, the planetary gear is prone to misalignment and loosening. If it is not discovered in time during assembly, when the whole machine is assembled and tested, the drainage traction device will not pull or get stuck, and the function will fail.

[0004] Therefore, how to achieve a stable connection between the output component and the driving component is an important technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a planetary gear fixing structure, which can limit and fix the output member by providing a fixing sleeve and a limiting portion to prevent the planetary gear from being unable to connect with the driving gear.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] The present application provides a planetary gear fixing structure, which is applied to the drainage traction deceleration process of a washing machine, comprising:

[0008] A driving member, wherein the driving member is provided with driving teeth;

[0009] An output member, wherein the output member is provided with a planetary gear and an output tooth, and the driving tooth is rotatably connected to the planetary gear;

[0010] A ring gear, sleeved outside the planetary gear, the ring gear is provided with an abutment surface, and the output member is located on the abutment surface;

[0011] A fixing sleeve is assembled on the ring gear, the output member is located between the ring gear and the fixing sleeve, and a limiting portion is arranged on the fixing sleeve, and the limiting portion limits and fixes the output member.

[0012] Optionally, in some embodiments of the present application, a first fixing portion is provided on the abutting surface, and a second fixing portion is provided on the fixing sleeve at a position corresponding to the first fixing portion, and when the fixing sleeve is assembled on the ring tooth, the first fixing portion is connected to the second fixing portion.

[0013] Optionally, in some embodiments of the present application, the first fixing portion is a first fixing groove, and the second fixing portion is a first fixing pin, and when the first fixing portion is connected to the second fixing portion, the first fixing pin is embedded in the first fixing groove.

[0014] Optionally, in some embodiments of the present application, the first fixing portion is a second fixing pin, and the second fixing portion is a second fixing groove, and when the first fixing portion is connected to the second fixing portion, the second fixing pin is embedded in the second fixing groove.

[0015] Optionally, in some embodiments of the present application, the limiting portion is a limiting ring, an output groove is provided on the fixing sleeve at a position corresponding to the output member, and the limiting ring is located in the output groove;

[0016] The limiting ring abuts against the output member.

[0017] Optionally, in some embodiments of the present application, a fixing member is provided on the output member, an output tooth is provided on one side of the fixing member, a planetary gear is provided on the other side of the fixing member, and the limiting ring abuts against one side of the fixing member facing the output tooth.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The present application can install the fixed sleeve on the ring gear by providing a first fixed part on the ring gear and a second fixed part on the fixed sleeve that cooperate with each other, wherein the output member is located in the output groove on the fixed sleeve, and the limiting part in the output groove limits the output member, so that the planetary gear on the output member is always in contact with the driving tooth on the driving member, thereby realizing a stable deceleration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 A schematic diagram of the overall structure of the planetary gear fixing structure provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of an exploded structure of a planetary gear fixing structure provided in an embodiment of the present application;

[0023] Figure 3 The overall structure of the gear ring provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0024] Figure 4 The overall structure of the fixing sleeve provided in the embodiment of the present application is schematically shown Figure 1 ;

[0025] Figure 5 A schematic diagram of the overall structure of the output element provided in the embodiment of the present application;

[0026] Figure 6 The overall structure of the fixing sleeve provided in the embodiment of the present application is schematically shown Figure 2 ;

[0027] Figure 7 The overall structure of the gear ring provided in the embodiment of the present application is shown in FIG. Figure 2 .

[0028] Description of reference numerals:

[0029] 100, driving member; 110, driving tooth; 200, output member; 210, planetary gear; 220, output tooth; 230, fixing member; 300, ring tooth; 310, abutment surface; 320, first fixing portion; 321, first fixing groove; 330, tooth groove; 340, through hole; 400, fixing sleeve; 410, limiting portion; 411, limiting ring; 420, second fixing portion; 421, first fixing pin; 430, output groove. DETAILED DESCRIPTION

[0030] 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.

[0031] Specifically, Figure 1 and Figure 2 As shown, an embodiment of the present application provides a planetary gear 210 fixing structure, which is mainly used for the deceleration process of the motor in the drainage traction device of the washing machine. The planetary gear 210 arranged therein can decelerate the rotation speed of the motor, thereby facilitating the drainage driving process of the washing machine.

[0032] In order to maintain the stability of deceleration during the deceleration process, the output member 200 needs to be stably connected to the driving member 100 at all times. During the connection process, the ring gear 300 and the fixing sleeve 400 are provided for cooperation. The specific cooperation process is as follows:

[0033] The output member 200 is provided with a fixing member 230, a planetary gear 210 and an output tooth 220. The planetary gear 210 and the output tooth 220 are respectively arranged at opposite sides of the fixing member 230. In the embodiment of the present application, the fixing member 230 is arranged in a circular shape. Figure 5 As shown, the output teeth 220 are located at a circular position on one side of the circular fixing member 230, and the number of planetary gears 210 is set to 3. The three planetary gears 210 are arranged in a ring on the fixing member 230, and the rotation of the output teeth 220 is driven by the overall rotation of the three planetary gears 210, wherein the rotation of the three planetary gears 210 is coordinated by the driving member 100, wherein the driving member 100 is provided with a driving tooth 110, and the driving tooth 110 is meshed with the three planetary gears 210. When the driving tooth 110 rotates, the driving tooth 110 drives The planetary gear 210 rotates, wherein during the rotation process, the outer shell of the planetary gear 210 is provided with a ring gear 300, the ring gear 300 is annularly arranged, and its inner ring is provided with a tooth groove 330 and a through hole 340, and the driving tooth 110 is meshed and connected with the ring gear 300 through the through hole 340, and the tooth groove 330 is rotationally connected with the three planetary gears 210. When the driving tooth 110 drives the three planetary gears 210 to rotate, the three planetary gears 210 all rotate on the ring gear, thereby driving the rotation of the fixing member 230, that is, driving the rotation of the output tooth 220.

[0034] Among them, in the embodiment of the present application, an abutment surface 310 is provided on the ring gear 300, and the output member 200 is arranged on its abutment surface 310, so that the planetary gear 210 on the output member 200 is meshed with the tooth groove 330 on the ring gear 300, and a fixing sleeve 400 is also provided on the ring gear 300, and an output groove 430 is opened on the fixing sleeve 400 at a position corresponding to the output member 200, and a limiting portion 410 is provided in the output groove 430. When the fixing sleeve 400 and the output member 200 are both installed on the ring gear 300, the limiting portion 410 limits the fixing member 230 on the output member 200 on the ring gear 300. Since the first fixing portion 320 and the second fixing portion 420 are provided between the fixing sleeve 400 and the ring gear 300, the fixing sleeve 400 and the ring gear 300 are installed and matched, which facilitates the fixing of the output member 200 on the ring gear 300 and prevents the output member 200 from falling off.

[0035] In the embodiment of the present application, the limiting portion 410 is a limiting ring 411. Since the radii of the output groove 430 and the fixing member 230 are equal, the fixing member 230 contacts the inner wall of the output groove 430, but the contact does not generate any interaction force, which facilitates the rotation of the fixing member 230. Since the limiting ring 411 is arranged in the output groove 430, the limiting ring 411 limits the output member 200, thereby fixing the output member 200 and further enhancing the connection strength between the planetary gear 210 and the driving tooth 110.

[0036] To achieve the above technical effects, the first fixing portion 320 and the second fixing portion 420 need to cooperate with each other, wherein, Figure 3 and Figure 4 As shown, in the embodiment of the present application, the first fixing portion 320 is arranged on the abutting surface 310, and the first fixing portion 320 is a first fixing groove 321, the second fixing portion 420 is arranged on the fixing sleeve 400, and the second fixing portion 420 is a first fixing pin 421, the first fixing pin 421 and the first fixing groove 321 correspond to each other, and the length of the first fixing pin 421 is equal to the length of the first fixing groove 321 and the shape corresponds, so that when the fixing sleeve 400 is matched with the ring tooth 300, the first fixing pin 421 can be completely located in the first fixing groove 321, so as to realize the matching connection between the fixing sleeve 400 and the ring tooth 300.

[0037] In the embodiment of the present application, the number of the first fixing pin 421 and the number of the second fixing pin are both four.

[0038] Preferably, an embodiment may also be provided in the present application, and the embodiment is:

[0039] The first fixing portion 320 is arranged on the abutting surface 310, and the first fixing portion 320 is a second fixing pin, the second fixing portion 420 is arranged on the fixing sleeve 400, and the second fixing portion 420 is a second fixing groove, the first fixing pin 421 corresponds to the first fixing groove 321, and the length of the first fixing pin 421 is equal to the length of the first fixing groove 321 and the shape corresponds, so that when the fixing sleeve 400 is matched with the ring tooth 300, the first fixing pin 421 can be completely located in the first fixing groove 321, thereby realizing the matching connection between the fixing sleeve 400 and the ring tooth 300.

[0040] Preferably, if Figure 6 and Figure 7 As shown, in the embodiment of the present application, the first fixing pin 421 can be set as an annular setting, and the first fixing groove 321 can be set as an annular setting to facilitate the connection relationship between the first fixing pin 421 and the first fixing groove 321.

[0041] 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 fixing structure, applied to the drainage traction deceleration process of a washing machine, characterized in that: include: A driving member, wherein the driving member is provided with driving teeth; An output member, wherein the output member is provided with a planetary gear and an output tooth, and the driving tooth is rotatably connected to the planetary gear; A ring gear, sleeved outside the planetary gear, the ring gear is provided with an abutment surface, and the output member is located on the abutment surface; A fixing sleeve is assembled on the ring gear, the output member is located between the ring gear and the fixing sleeve, and a limiting portion is arranged on the fixing sleeve, and the limiting portion limits and fixes the output member.

2. The planetary gear fixing structure according to claim 1, characterized in that: A first fixing portion is arranged on the abutting surface, and a second fixing portion is arranged on the fixing sleeve at a position corresponding to the first fixing portion. When the fixing sleeve is assembled on the ring gear, the first fixing portion is connected to the second fixing portion.

3. The planetary gear fixing structure according to claim 2, characterized in that: The first fixing portion is a first fixing groove, and the second fixing portion is a first fixing pin. When the first fixing portion is connected to the second fixing portion, the first fixing pin is embedded in the first fixing groove.

4. The planetary gear fixing structure according to claim 2, characterized in that: The first fixing portion is a second fixing pin, and the second fixing portion is a second fixing groove. When the first fixing portion is connected to the second fixing portion, the second fixing pin is embedded in the second fixing groove.

5. The planetary gear fixing structure according to claim 1, characterized in that: The limiting part is a limiting ring, an output groove is provided on the fixed sleeve at a position corresponding to the output member, and the limiting ring is located in the output groove; The limiting ring abuts against the output member.

6. The planetary gear fixing structure according to claim 5, characterized in that: The output member is provided with a fixing member, one side of the fixing member is provided with an output tooth, the other side of the fixing member is provided with a planetary gear, and the limiting ring abuts against a side of the fixing member facing the output tooth.

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