WO2007137463A1

WO2007137463A1 - A method for reducing decelerator noise of washing machine and a decelerator of washing machine thereof

Info

Publication number: WO2007137463A1
Application number: PCT/CN2006/003096
Authority: WO
Inventors: Jun Liu; Hualin Xue
Original assignee: Ningguo Julong Industry Co.Ltd
Priority date: 2006-05-27
Filing date: 2006-11-17
Publication date: 2007-12-06

Abstract

A method for reducing decelerator noise of washing machine and a decelerator of washing machine thereof are disclosed. The method substantially comprises using one of a belt transmission, a chain transmission and a flexible gear transmission or their combination as the transmission mechanism of the decelerator of washing machine. The decelerator of washing machine is a fix axle transmission or a planetary transmission, in which an output shaft and/or an output bushing is/are driven by the input shaft via a belt, a chain or a flexible gear. The decelerator of washing machine according to the present invention is advantageous in that the instantaneous velocity is uniform and that the oil resistance and the abrasion resistance are excellent and that it is easy and inexpensive to maintain the decelerator. Furthermore the noise of the decelerator can be reduced, so that the working noise in an idling condition is not more than 52db. The washing machine with the decelerator of the present invention can steadily run, be good at shockproof performance, cause less noise and be durable, thereby the general quality of the washing machine can be improved significantly.

Description

Method for reducing noise of washing machine reducer and washing machine reducer thereof

The technical solution of the present invention relates to the technical field of washing machines, and in particular to a washing machine reducer. Background technique

The reducer of the conventional pulsator washing machine is generally a spur gear or a planetary gear transmission. The input shaft is driven by a speed reducer to drive the pulsator or drive the inner drum at the same time, and rotates according to a set ratio, but the stability of the conventional gear transmission is poor. The noise is large, and it is difficult to meet the standard requirements for the working noise of the washing machine in the national standard for household electric washing machines, and the washing machine reducer is the main generating component of the washing machine noise. How to reduce the working noise of the washing machine reducer has become a top priority. Summary of the invention

The object of the invention is: to invent a method for reducing the noise of a washing machine reducer and a washing machine reducer thereof, and to provide a transmission scheme, which completely or partially replaces the gear transmission in the conventional pulsator washing machine reducer, so that the washing machine works smoothly and reduces the washing machine Working noise.

The technical solution adopted by the present invention is as follows:

A method for reducing the noise of a washing machine reducer, characterized in that: mainly, the transmission mechanism of the washing machine reducer is used alone or in combination of at least one of a belt drive, a chain drive and an elastic gear transmission to reduce the noise of the washing machine reducer .

The first basic technical solution of the noise reduction washing machine reducer is: The washing machine reducer is a fixed shaft transmission, mainly composed of a housing, an input shaft, a driving wheel, one or more driven wheels and one or more output shafts; the driving wheel is fixed in On the input shaft, the driven wheel is fixed on the output shaft; the utility model is characterized in that: the driving wheel and the driven wheel can be a pulley, a sprocket or an elastic gear, and the input shaft is correspondingly driven by a transmission belt, a transmission chain or an elastic gear to reduce the output. The axis rotates.

The output shaft can be offset, the number can be 1~6, and the output shaft can have a camber angle, that is, the angle between the center line of the input shaft is 0°~60°, and the main and driven wheels should be corresponding. Elastic straight or bevel gear drive.

The upper end of the input shaft can be extended above the reducer as a central output small shaft.

The drive belt and drive chain can be transitioned through the intermediate wheel and automatically tensioned by the tensioning wheel.

The second basic technical solution of the noise reduction washing machine reducer is: The washing machine reducer is a planetary gear The transmission type is mainly composed of a housing, an input shaft, a driving wheel, a planetary wheel, a planet carrier, an inner wheel, a center wheel, an output shaft and an output sleeve; the driving wheel or the carrier is fixed on the input shaft, the center wheel or The planet carrier is fixed on the output shaft, and the inner wheel is fixed on the casing or the output sleeve; the utility model is characterized in that: the driving wheel and the planetary wheel can be a pulley, a sprocket or an elastic gear, and the inner wheel can be a timing belt. Wheel, the input shaft correspondingly drives the output shaft through the belt, the drive chain or the elastic gear to reduce the rotation of the output shaft.

The upper end of the input shaft can pass from the hollow output shaft to the top of the reducer as a central output small shaft. The belt can be a timing belt, a V-belt, a V-ribbed belt or a circular belt.

The drive belt is preferably a timing belt.

The timing belt can be a double-sided toothed belt or a single-toothed belt, and the tooth shape can be trapezoidal, circular or involute.

The drive chain is preferably a toothed chain.

The planetary gear drive can be a small tooth difference, a cycloidal tooth or a movable tooth drive.

The elastic gear is composed of an elastic wear resistant material.

The elastic gear can also be composed of a rigid gear body coated with an elastic wear-resistant material.

Advantages and benefits of the present invention against the prior art

1. The invention adopts a reducer with a belt drive, a chain drive and an elastic gear alone or in combination, and the instantaneous speed is even and stable, the transmission efficiency is high, and the impact vibration is good.

2. The belt-driven washing machine reducer made by the invention has the advantages of simple and compact structure, good oil resistance and wear resistance, no lubrication, simplified sealing structure, simple and economical maintenance, durable components and long service life.

3. The washing machine reducer made according to the invention can effectively reduce the noise and operate under no-load condition, and the working noise is not more than 52dB.

4. The washing machine equipped with the reducer of the invention has stable work, good impact and vibration resistance, low noise, reliability, durability, long service life, time saving and power saving, and can effectively improve the overall quality of the washing machine. DRAWINGS

1 is a schematic structural view of an embodiment of a low-noise washing machine reducer, a fixed-shaft transmission type, an offset double-output shaft (a counter-rotating) type, and a single double-sided toothed belt drive according to the present invention, and FIG. 1A is an outward view of FIG. FIG. 1B is a schematic plan view of the tensioning tensioner of the tensioning wheel of FIG. 1; FIG.

Figure 2 is a low noise washing machine reducer of the present invention, fixed shaft transmission type, offset double output shaft (counting rotation) Schematic diagram of an embodiment of a single-type, double-sided toothed belt drive, and FIG. 2A is a schematic view of the top view of FIG.

3 is a structural schematic view of an embodiment of a low-noise washing machine speed reducer, a fixed-shaft transmission type, an offset double-output shaft (counter-rotation) type, a single-face tooth synchronous belt and a double-sided tooth timing belt combination drive according to the present invention, FIG. 3A is a schematic view Figure 3 is a schematic view of the transmission;

4 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer, a fixed-shaft transmission type, an offset double-output shaft (counter-rotation) type, a single-face tooth synchronous belt and a pair of elastic gears, and FIG. 4A is a view 4 schematic view of the transmission;

5 is a structural schematic view of an embodiment of a low-noise washing machine reducer, a fixed-shaft transmission type, an offset dual-output shaft (counter-rotation) type, a single-face tooth synchronous belt and a circular belt combined transmission according to the present invention, and FIG. 5A is FIG. a schematic view of the transmission;

6 is a structural schematic view of an embodiment of a low-noise washing machine speed reducer, a fixed-shaft transmission type, an offset double-output shaft (counter-rotation) type, a single-face tooth synchronous belt and two large elastic gears combined with the present invention, FIG. 6A is a schematic view Figure 6 is a schematic view of the transmission;

7 is a schematic structural view of an embodiment of a low-noise washing machine reducer, a fixed-shaft transmission type, an offset double-output shaft (co-rotating) type, a single double-sided tooth synchronous belt transmission, and FIG. 7A is a top view transmission diagram of FIG. ;

8 is a schematic structural view of an embodiment of a low-noise washing machine reducer, a fixed-shaft transmission type, an offset double-output shaft (co-rotating) type, and a double-single-single-tooth synchronous belt drive according to the present invention, and FIG. 8A is a top view transmission of FIG. Schematic diagram

Figure 9 is a schematic view showing the structure of an embodiment of the elastic gear transmission of the low-noise washing machine reducer of the present invention, the fixed-shaft transmission type, the offset double-output shaft (without the intermediate wheel rotating in the same direction and the intermediate wheel rotating), Fig. 9A, 9B is a schematic view of the top view of FIG. 9;

10 is a schematic structural view of a low-noise washing machine speed reducer of the present invention, a planetary transmission type, a concentric single output shaft type, and a double-sided toothed belt drive, and FIG. 10A is a schematic view of the top view of FIG.

11 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer, a planetary transmission type, a concentric single output shaft type, a double-sided tooth synchronous belt and a double-sided tooth synchronous belt assembly, and FIG. 11A is a top view transmission diagram of FIG. 11;

12 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer, a planetary transmission type, a concentric single output shaft type, an elastic planetary gear transmission, and FIG. 12A is a top view transmission diagram of FIG. Figure 13 is a schematic view showing the structure of a low-noise washing machine reducer of the present invention, a planetary transmission type, a concentric double output shaft type, a double double-sided tooth synchronous belt and a double inner wheel combined transmission, and Figs. 13A and 13B are the two of Fig. 13 a schematic view of the transmission;

14 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer of the present invention, a planetary transmission type, a concentric double output shaft type, a single-sided tooth synchronous belt, a double-sided tooth synchronous belt and a double planetary gear combination transmission, and FIGS. 14A and 14B are diagrams. Figure 2 is a schematic view of two top views of the transmission;

Figure 15 is a structural schematic view of an embodiment of a low-noise washing machine speed reducer of the present invention, a planetary transmission type, a concentric double output shaft type, a double double-sided tooth synchronous belt and a double-drive driving wheel, and Figs. 15A and 15B are two of Fig. 15 a schematic view of the transmission;

Figure 16 is a schematic view showing the structure of a low-noise washing machine reducer, a planetary transmission type, a concentric double output shaft type, and a double-set elastic planetary gear combination transmission, and Figure 16A is a schematic view of the top view of Figure 16; FIG. 17A is a schematic diagram of the top view of FIG. 17 and FIG. 17 is a schematic view of the low-noise washing machine of the present invention; FIG. FIG. 18A is a schematic view showing the structure of the transmission of the transmission type, the concentric double output shaft type, the double-drive driving wheel and the elastic planetary wheel; FIG.

19 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer of the present invention, a planetary transmission type, a concentric double output shaft type, a double single-sided tooth synchronous belt and a differential center wheel combined transmission, and FIG. 19A is a top view transmission diagram of FIG. ;

20 is a schematic structural view of an embodiment of a low-noise washing machine speed reducer, a planetary transmission type, a concentric double output shaft type, an elastic transmission of a planetary wheel and a differential center wheel, and FIG. 20A is a top view of the transmission diagram of FIG. FIG. 21A is a schematic diagram of the top view of the noise canceling machine, the planetary transmission type, the concentric double output shaft type, the planetary wheel and the differential inner wheel elastic transmission. FIG.

Where: (The arc arrows in the figure indicate the relationship between the rotation directions of the relevant parts)

1. Housing 2. Input shaft 3, 3a. Driving wheel 4. Drive wheel

5. Double-sided toothed timing belt 6. Output shaft 7. Tensioning wheel 8, 8a. Intermediate wheel

9. Single-toothed timing belt 10. Round belt 11. Round pulleys 12, 13, 14. Elastic gears 15, 15a~e. Planetary wheels 16. Planetary carriages 17, 17a. Inner wheels 18a, 18b. Center wheels • 19. Output sleeve 20. Fixed planetary shaft detailed description

1 and 2 are a schematic diagram of a low-noise washing machine speed reducer, a fixed-shaft transmission type, an offset double-output shaft (counter-rotating) type transmission, and a single double-sided tooth synchronous belt transmission. The speed reducer is mainly composed of a housing 1, an input shaft 2, a driving wheel 3, a driven wheel 4, a double-sided toothed timing belt 5, an output shaft 6, a tensioning pulley 7 and/or an intermediate wheel 8; the input shaft 2 can be in the shell The center hole of the lower part of the body 1 rotates, and the driving wheel 3 is fixed on the upper end of the input shaft 2, and two output shafts 6 offset from the center of rotation of the input shaft 2, wherein the driven wheel 4 and the driving wheel 3 are fixed by the double The surface tooth timing belt 5 simultaneously drives the two driven wheels 4 and the two output shafts 6 to rotate in opposite directions.

Figure 1A has an outwardly tensioned tensioning pulley 7. The double-sided toothed timing belt 5 can be a normal double-sided trapezoidal tooth, a special double-sided circular tooth or a special double-sided multi-ribbed belt, and is equipped with a corresponding pulley.

Figure 1B shows the tensioning wheel 7 which is tensioned inward (if the belt length is suitable, the tensioning wheel is not included), the inner circumference of the double-sided toothed belt 5 is a common trapezoidal tooth or an arc tooth, and the outer circumference is a special standard tooth height. Involute teeth, and with the corresponding pulley and involute driven external gear.

Figure 2 has an outwardly tensioned tensioning pulley 7 and an intermediate wheel 8, which can be a common double-sided trapezoidal tooth, a special double-sided circular arc tooth or a special double-sided multi-ribbed tooth belt, and correspondingly With the pulley, all of the pulleys of this embodiment have a large wrap angle.

3, FIG. 4 is an embodiment of a low-noise washing machine speed reducer, a fixed-shaft transmission type, and a biased dual output shaft (counter-rotating) type transmission according to the present invention, wherein FIG. 3 is a single-sided toothed timing belt and two-sided Tooth timing belt combined transmission, Figure 4 is a single-face timing belt and a pair of elastic gear combination transmission. They are mainly composed of a housing 1, an input shaft 2, a driving wheel 3, a driven wheel 4, a double-sided toothed timing belt 5, a single-sided toothed timing belt 9, an output shaft 6, a tensioning pulley 7, and/or elastic gears 12, 13. The input shaft 2 is rotatable in a central hole in the lower portion of the housing 1, and the driving wheel 3 has upper and lower portions, or includes a gear 12 fixed to the upper end of the input shaft 2 and offset from the center of rotation of the input shaft 2 The output shafts 6 are respectively provided with a driven wheel 4 or a gear 13 respectively, and the driving wheel 3 passes through the single-face timing belt 9 and the double-sided tooth timing belt 5 or the elastic gears 12 and 13, simultaneously driving two The output shafts 6 rotate in opposite directions to each other, and the double-sided toothed timing belt 5 can be a common double-sided trapezoidal tooth or a special double-sided circular arc tooth or a special double-sided multi-ribbed tooth belt, and the single-sided tooth synchronous belt 9 can be a common trapezoidal tooth. Arc teeth, V-ribbed belts, V-belts or toothed chains with corresponding pulleys or sprockets. All or one of the gears 12, 13 may be an elastic gear. The elastic gear may be entirely composed of an elastic wear-resistant material, or may be composed of a rigid gear body coated with an elastic wear-resistant material. 5, FIG. 6 is an embodiment of a low-noise washing machine speed reducer, a fixed-shaft transmission type, and a biased dual output shaft (counter-rotating) type transmission according to the present invention, wherein FIG. 5 is a single-sided toothed timing belt and a circular belt. Combined drive, Figure 6 is a single-sided toothed timing belt combined with two large elastic gears. They are mainly composed of a housing 1, an input shaft 2, a driving wheel 3, a driven wheel 4, a single-toothed timing belt 9, an output shaft 6, a tensioning pulley 7, a circular belt 10, a circular pulley 11 or a large elastic gear 14. The input shaft 2 is rotatable in a central hole in the lower part of the casing 1, the driving wheel 3 is fixed on the upper end of the input shaft 2, and the middle and upper parts of the two output shafts 6 are fixed with two circular pulleys 11 or two. The elastic bull gear 14 has a driven wheel 4 fixed to the middle and lower part of one of the output shafts. The driving wheel 3 drives a driven wheel 4 through the single-faced timing belt 9, and the circular belt 10 crosses to drive the other circular pulley. Or by two elastic bull gears 14 meshing transmission, while driving the two output shafts 6 to rotate in opposite directions. The single-faced timing belt 9 can be a common trapezoidal tooth, a circular arc tooth, a V-ribbed belt, a V-belt or a toothed chain, and is equipped with a corresponding pulley or sprocket. All or one of the two large gears 14 may be an elastic gear.

7 , 8 and 9 , which are embodiments of a low-noise washing machine reducer, a fixed-shaft transmission type, and a biased dual-output shaft type transmission, wherein FIG. 7 is a single double-sided tooth synchronous belt transmission, and an output shaft Rotating in the same direction, Figure 8 is a double-single-plane toothed belt drive with the output shaft rotating in the same direction. Figure 9 shows the elastic gear drive. They are mainly composed of a housing 1, an input shaft 2, a driving wheel 3, a driven wheel 4, an output shaft 6, a tensioning pulley 7, a double-sided toothed timing belt 5 or a single-sided toothed timing belt 9 or an elastic gear 13, and an elastic intermediate wheel 8a. The input shaft 2 is rotatable in a central hole in the lower portion of the casing 1, the driving wheel 3 is fixed on the upper end of the input shaft 2, and the driven wheel 4 is fixed on the two output shafts 6 offset from the center of rotation of the input shaft. The elastic gear 13, the driving wheel 3 passes through a single double-sided toothed belt 5 or a double single-toothed timing belt 9 or an elastic gear 13, or includes an elastic intermediate wheel 8a to simultaneously drive the two output shafts 6 to rotate in the same direction or in opposite directions. Fig. 9A shows that the driving wheel 3 is directly meshed with the two elastic gears 13, and the two output shafts 6 rotate in the same direction, and Fig. 9B shows that the driving wheel 3 is directly meshed with one elastic gear 13, and the other elastic gear 13 is meshed with the intermediate wheel 8a. The two output shafts 6 rotate in opposite directions to each other.

In the elastic gear transmission of Fig. 9, the output shaft 6 is biased, which may be 1~6, and the output shaft may have a camber angle, that is, the angle between the center line of the input shaft 2 and the center line of the input shaft 2 may be 0° to 60°. The main and driven wheels should be driven by corresponding elastic straight or bevel gears.

10, FIG. 11 and FIG. 12, which are embodiments of a low-noise washing machine speed reducer, a planetary transmission type, and a concentric single output shaft type transmission, wherein FIG. 10 is a double-sided tooth synchronous belt transmission, and FIG. 11 is a double-sided belt. The tooth timing belt is combined with the single-face timing belt, and Figure 12 is the elastic planetary gear transmission. They are mainly composed of a housing 1, an input shaft 2, a driving pulley 3, a double-sided tooth timing belt 5, a single-sided tooth timing belt 9, a planetary gear 15a, 15b, a carrier 16, and an inner wheel 17; the input shaft 2 can be in the shell Rotating in the center hole of the lower part of the body 1, the driving wheel 3 is fixed At the upper end of the input shaft 2, the planetary carrier 16 and the output shaft 6 fixed thereto are rotated by the single-stage planetary transmission deceleration; the inner wheel 17 of Fig. 10 is an internal tooth synchronous pulley, the driving wheel 3 and the planetary gear 15a. All of the timing pulleys, the single-face timing belt 9 of Fig. 11 is fixed to the inner circumference of the casing 1 for the inner wheel, and the driving wheel 3 is the timing pulley, and the lower portion of the planetary pulley 15a is driven by the double-sided tooth timing belt 5. The upper portion is meshed with the single-toothed timing belt 9; the driving wheel 3 of FIG. 12 and the inner wheel 17 fixed to the inner circumference of the casing 1 are conventional involute gears, and the planetary gear 15b is an elastic gear, and the driving wheel 3 The inner wheel 17 is meshed by the elastic gear 15b. The double-sided toothed timing belt 5 can be a common double-sided trapezoidal tooth or a special double-sided circular arc tooth or a special double-sided multi-ribbed belt, and the single-sided toothed timing belt 9 can be a common trapezoidal or arc-shaped tooth, and is equipped with a corresponding pulley. .

13, FIG. 14 and FIG. 15, which are embodiments of a low-noise washing machine reducer, a planetary transmission type, a concentric double output shaft, and a double-drive type transmission, wherein FIG. 13 is a double-sided double-sided toothed belt and a double The inner wheel combination transmission, Fig. 14 is a single-face tooth synchronous belt, a double-sided tooth synchronous belt and a double planetary gear combined transmission, and Fig. 15 is a double double-sided tooth synchronous belt and a double-drive driving combination drive. They are mainly composed of a housing 1, an input shaft 2, a driving pulley 3, a double-sided toothed timing belt 5 or a single-sided toothed timing belt 9, an output shaft 6, a planetary gear 15b, 15c or a double planetary gear 15d, 15e, a carrier 16 The inner wheel 17, 17a, the center wheel 18a or 18b, the output sleeve 19 and the fixed planet shaft 20; the input shaft 2 is rotatable in a central hole in the lower part of the casing 1, and the driving wheels 3 and 3a are fixed on the input shaft 2 The upper end, the inner wheels 17, 17a are internal tooth synchronous pulleys, the inner wheel 17 is fixed on the lower end of the output sleeve 19, the inner wheel 17a is fixed to the casing, and the carrier 16 or the center wheel 18b is fixed on the output shaft 6. At the lower end, the center wheel 18a is fixed at the lower end of the carrier 16, and the input shaft 2 is decelerated by the timing belt and the pulleys of the two-stage planetary transmission, so that the concentric output shaft 6 and the output sleeve 19 can be driven to rotate in opposite directions.

16, FIG. 17, and FIG. 18, which are embodiments of a low-noise washing machine speed reducer, a planetary transmission type, a concentric double output shaft, and a double-drive type transmission, wherein FIG. 16 is a double-set elastic planetary gear combination transmission, 17 is a schematic diagram of the transmission structure of the double elastic planetary gear combination, and FIG. 18 is a combined transmission of the double driving wheel and the elastic planetary gear. They are mainly composed of a housing 1, an input shaft 2, a driving wheel 3, 3a, a planetary gear 15b, 15c or a double planetary gear 15d, 15e, a carrier 16, an inner wheel 17, 17a, a center wheel 18a or 18b, an output bushing 19 and a fixed planetary shaft 20; the input shaft 2 is rotatable within a central bore of the lower portion of the housing 1, the drive wheel 3 (or including 3a) is fixed to the upper end of the input shaft 2, and the inner wheel 17 is fixed to the output sleeve 19 The lower end, the inner wheel 17a is fixed to the casing, the carrier 16 or the center wheel 18b is fixed to the lower end of the output shaft 6, and the center wheel 18a is fixed to the lower end of the carrier 16; wherein, the driving wheel 3, 3a, the center wheel 18a, 18b and the inner wheels 17, 17a are conventional involute gears, the planetary gears 15b, 15c and 15d, 15e are elastic gears, and the driving wheels 3, 3a mesh with the inner wheel 17 via the elastic planet wheels 15b, 15c and 15d, 15e . Input shaft 2 passes through two-stage planetary transmission The dynamic deceleration can simultaneously drive the concentric output shaft 6 and the output sleeve 19 to rotate in opposite directions.

19, FIG. 20 and FIG. 21, which are embodiments of a low-noise washing machine reducer, a planetary transmission type, a concentric dual output shaft, and a double-drive type transmission, wherein FIG. 19 is a double-single-sided toothed belt and a difference. The dynamic center wheel combined transmission, Fig. 20 is the elastic transmission of the planetary wheel and the differential center wheel, and Fig. 21 is the elastic transmission of the planetary wheel and the differential inner wheel. They are mainly composed of a housing 1, an input shaft 2, a carrier 16, a single-sided timing belt 9, an output shaft 6, an output sleeve 19, a carrier 16, a double planet 15d, 15e, a center wheel 18a, 18b or The wheels 17 and 17a are composed; the input shaft 1 is rotatable in a central hole in the lower portion of the casing 1, the carrier 16 is fixed on the upper end of the input shaft 2, and FIG. 19 has no inner wheel, and the input shaft 2 passes through the carrier 16, the planetary gear 15d. 15e double single-toothed timing belt 9 drives the central wheels 18a, 18b and the output shaft 6 and the output sleeve 19 respectively fixed with them, and is mutually differentially rotated; FIG. 20 has no inner wheel, its planetary wheel and center All or part of the wheel is an elastic gear, and the input shaft 2 drives the center wheels 18a, 18b through the carrier 16, the planet wheels 15d, 15e, and the output shaft 6 and the output sleeve 19 respectively fixed to them to rotate in opposite directions; Without the center wheel, the planetary wheel and the inner wheel are all or part of the elastic gear, and the input shaft 2 drives the inner wheels 17, 17a through the carrier 16, the planetary gears 15d, 15e, and the output bushing 19 and the output shaft respectively fixed to them. 6 mutual differential rotation.

Claims

Claim

A method for reducing the noise of a reducer of a washing machine, characterized in that: the driving mechanism of the speed reducer of the washing machine is used alone or in combination with at least one of a belt drive, a chain drive and an elastic gear drive to reduce the noise of the washer reducer.

2. A washing machine reducer manufactured by the method for reducing noise of a washing machine reducer according to claim 1, which is a fixed shaft transmission type, mainly composed of a housing (1), an input shaft (2), and a driving wheel (3) More than one driven wheel (4) and more than one output shaft (6); the driving wheel (3) is fixed on the input shaft, and the driven wheel (4) is fixed on the output shaft; the characteristic wheel is: (3) The driven wheel (4) is a pulley, a sprocket or an elastic gear, and the input shaft (2) is correspondingly driven to rotate by the transmission belt, the transmission chain or the elastic gear to reduce the output shaft (6).

3. A washing machine speed reducer according to claim 2, characterized in that the drive belt and the drive train are transitioned through the intermediate wheel (8) and automatically tensioned by the tensioning wheel (7).

4. The washing machine reducer according to claim 2, wherein: said output shaft (6) is biased, the number of which is 1 to 6, and the inner tilt angle of the output shaft, that is, the input shaft (2) The angle between the center lines is 0 ° ~ 60 °, when the main and driven wheels are the corresponding elastic straight or bevel gear transmission.

The washing machine speed reducer according to claim 2, characterized in that: the input shaft (2) has an upper end projecting above the speed reducer as a center output small shaft.

6. A washing machine reducer manufactured by the method of claim 1 for reducing noise of a washing machine reducer, which is a planetary gear transmission type, mainly comprising a housing (1), an input shaft (2), and a driving wheel (3) ), planetary gear (15), planet carrier (16), inner wheel (17), center wheel (18a or 18b), output shaft (6) and output bushing (19); drive wheel (3) or planet carrier (16) fixed on the input shaft (2), the center wheel (18a or 18b) or the carrier (16) is fixed on the output shaft (6), and the inner wheel (17) is fixed in the housing (1) or The output sleeve (19); characterized in that: the driving wheel (3), the planetary gear (15) is a pulley, a sprocket or an elastic gear, the inner wheel (17) is a synchronous pulley, and the input shaft (2) Accordingly, the output shaft (6) is driven by the belt, the drive chain or the elastic gear to reduce the rotation of the output shaft (19).

7. The washing machine speed reducer according to claim 6, wherein: the input shaft (2) has an upper end passing through the hollow output shaft (6) to the top of the speed reducer as a center output small shaft.

8. A washing machine speed reducer according to claim 2 or claim 6 wherein: said drive belt is selected from the group consisting of a timing belt, a V-belt, a V-ribbed belt and a circular belt.

9. The washing machine speed reducer according to claim 8, wherein: the timing belt is a double-sided tooth timing belt (5) or a single-sided tooth timing belt (9), and the tooth shape is trapezoidal or circular. Or involute tooth profile.

A washing machine speed reducer according to claim 2 or 6, wherein: said transmission chain is a toothed chain.

11. The washing machine speed reducer according to claim 6, wherein: the planetary gear transmission is a small tooth difference, a cycloidal tooth or a movable tooth drive.

A washing machine speed reducer according to claim 2 or 6, wherein: said elastic gear is made of an elastic wear resistant material.

The washing machine reducer according to claim 2 or 6, wherein the elastic gear is composed of a rigid gear body covered with an elastic wear-resistant material.