CN111996749A - Anti-eccentric rotating device for drum of horizontal washing machine - Google Patents

Abstract

The invention relates to the technical field of household appliances and discloses an anti-eccentric rotation device for a drum of a horizontal washing machine. When the inside clothing quantity of cylinder is more and enter into under the dehydration mode, the belt pulley passes through the driving shaft and drives the cylinder with higher speed and rotate and begin to take place the skew and when vibrating, thereby the driving gear can be along with the cylinder simultaneously shift with the vibration and with driven gear's inside contact and take place the meshing and drive driven gear and begin to rotate this moment, simultaneously, thereby it drives left driven shaft and right driven shaft and rotates to insert a mutual joint through cross-shaped buckle and bar, thereby it prevents the rotational speed of cylinder further to rise and thereby prevent the vibration range restriction of cylinder in driven gear's inside to prevent the aggravation that the cylinder takes place the auto-excitation formula to improve washing machine and carried out the stability when dehydration operation.

Description

Anti-eccentric rotating device for drum of horizontal washing machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a drum anti-eccentric rotation device of a horizontal washing machine.

Background

A washing machine is a very common household appliance, and a cleaning appliance for washing laundry by using mechanical action of electric energy generation is classified into two types of home and collective according to its rated washing capacity, the two types of structures are very similar, both the controllable motor drives the belt pulley to transmit and drives the roller to rotate in various modes through the belt, in the washing process, a step called dehydration is carried out, water in the clothes in the drum is thrown out by centrifugal force through the quick rotation of the drum, so that the clothes can be dried more quickly, wherein, in order to support the drum to reach a faster rotating speed, the drum of the horizontal drum washing machine is generally movably adjusted in a straight drum type box body, the box body is suspended at the top of the outer box body of the washing machine through the stretching of a spring, and the bottom is also connected through a buffer device, so that the vibration generated when the roller rotates quickly is relieved to the maximum extent.

Although the structure has a certain shock absorption effect, the vibration amplitude is not fundamentally relieved, the shock absorption effect is general, the main reason of the vibration of the horizontal type roller is that when the horizontal type roller is arranged, the clothes in the normally washed roller are converged at the bottom of the inner cavity of the roller under the condition of gravity, and until the rotating speed of the roller is accelerated from the washing mode to the spin-drying mode, the clothes in the roller cannot be dispersed to be uniformly distributed on the inner wall of the roller, so that the centrifugal force generated by the part with more gathered clothes is larger, the centrifugal force generated by the part with less gathered clothes is smaller, the roller is deviated from the direction with more gathered clothes, once the displacement occurs, the position with more gathered clothes is far away from the rotating center, so that the rotating radius is increased, and the centrifugal force is intensified due to the unchanged rotating speed, thereby make the vibration of cylinder produce the aggravation of auto-excitation to the vibration of this kind of auto-excitation can aggravate always just can stop the aggravation to making the cylinder and washing machine outer box striking, and original buffer can all lose the effect this moment, transmission system and electric control system in this kind of vibration can make the washing machine receive very big destruction, the washing machine's that greatly shortens life, for this reason, this application file provides a novel horizontal formula washing machine cylinder prevents eccentric rotating device, aim at solving the above-mentioned problem that proposes.

Disclosure of Invention

Aiming at the defects of the prior buffer device in the transverse-type drum washing machine in the use process, the invention provides the anti-eccentric rotation device for the drum of the transverse-type washing machine, which has the advantages of better buffering and damping effects and better adaptability and solves the problem that the buffer device of the prior equipment cannot fundamentally reduce vibration but has common effect.

The invention provides the following technical scheme: the utility model provides an eccentric rotating device is prevented to horizontal formula washing machine cylinder, includes the cylinder, one side fixed mounting of cylinder has the driving shaft, the fixed belt pulley that has cup jointed of surface of driving shaft, the one end fixed mounting of driving shaft has the driving gear, the outside of driving gear is provided with driven gear, driven gear's one end fixed mounting has left driven shaft, bearing I has been cup jointed in the surface activity of left driven shaft, rotating device has been cup jointed in the surface activity of bearing I, rotating device's surface activity has cup jointed the outer bearing.

Preferably, rotating device includes the rolling disc, sliding tray I and sliding tray II have been seted up respectively on the inside position that is located both sides of rolling disc, the inside at sliding tray I is cup jointed in the activity of bearing I, bearing II has been cup jointed in the inside activity of sliding tray II, right driven shaft has been cup jointed in the inside activity of bearing II, the balancing weight has been cup jointed in the surface activity of right driven shaft, circular recess and inslot fixed mounting have been seted up on the position of the inside top of rolling disc and bottom to reset device, reset device's surface activity has been cup jointed the chain, reset device cup joints through chain and left driven shaft and right driven shaft activity.

Preferably, the rotating disc is fixed with the inner ring of the outer bearing in a clamping manner.

Preferably, the axis of the left driven shaft and the axis of the right driven shaft are located on the same center.

Preferably, the one end fixed mounting of a left side driven shaft has cross to detain, the one end fixed mounting of right side driven shaft has the bar to insert the strip, cross knot and the mutual joint of bar to insert the strip, the opening part radian of cross is ninety degrees, the appearance of cross is the contained angle between cross and the opening direction and is ninety degrees, the length of bar is less than the opening width of cross.

Preferably, the resetting device comprises a rotating shaft, a rotating disc is movably sleeved on the outer surface of the rotating shaft, the outer surface of the rotating disc is in contact with the chain, the two sides of the rotating disc are both fixedly provided with resetting springs, and one ends of the resetting springs are connected with the rotating disc.

The invention has the following beneficial effects:

1. the invention arranges the driven gear outside the driving gear, when the inner clothing of the drum is more and enters into the dehydration mode, the belt pulley drives the drum to accelerate and rotate through the driving shaft and starts to generate deviation and vibration, the driving gear can simultaneously deflect and vibrate along with the drum and contact and mesh with the inner part of the driven gear to drive the driven gear to start rotating, simultaneously, the driving gear and the strip-shaped inserting strip are mutually clamped and connected through the cross buckle to drive the left driven shaft and the right driven shaft to rotate, thereby increasing the load to prevent the rotating speed of the drum from further rising and limiting the vibration amplitude of the drum in the inner part of the driven gear to prevent the drum from generating self-excitation aggravation, improving the stability of the washing machine during dehydration operation, and the balancing weight is movably sleeved on the outer surface of the right driven shaft, and the rotating center of the right driven shaft does not deflect to drive the balancing weight to rotate, thereby avoided the cylinder to make the balancing weight take place to rotate when not making driven gear take place the skew thereby aggravating the produced centrifugal effect of cylinder and make the problem of vibration aggravation, improved the device job stabilization nature.

2. The invention is movably sleeved in the sliding groove I through the bearing I, so that excessive clothes in the roller can prevent the vibration amplitude of the driving gear from being limited in the driven gear, the driven gear deflects under the vibration of the driving gear, the driven gear can drive the left driven shaft to deflect synchronously, the reset device is movably sleeved with the left driven shaft and the right driven shaft through the lock chain, the right driven shaft can deflect in the opposite direction through the dragging of the lock chain when the left driven shaft deflects, the strip-shaped inserting strip is separated from the inside of the cross buckle, so that the left driven shaft and the right driven shaft lose the clamping effect and lose the transmission effect, and the left driven shaft and the right driven shaft are dislocated at the moment and become the transmission device of the rotating device so as to drive the rotating device to rotate in the inner ring of the outer bearing, the offset directions of the left driven shaft and the right driven shaft are opposite, so that the offset direction of the right driven shaft is in the opposite direction of the position where more clothes are gathered in the drum, meanwhile, the right driven shaft can swing the balancing weight to synchronously rotate when offsetting the original rotation center in the rotating device, the centrifugal force generated by the balancing weight is opposite to the centrifugal force generated by the drum and causing vibration, so that the centrifugal force is balanced with each other, the centrifugal effect of the drum is reduced, the vibration amplitude of the drum is reduced, the larger the centrifugal force of the drum is, the larger the vibration amplitude is, the larger the offset of the left driven shaft and the right driven shaft is, the larger the rotation radius of the balancing weight is, the centrifugal force is increased, the dynamic balance state of the centrifugal force of the drum and the centrifugal force of the balancing weight is kept, the vibration amplitude of the drum is reduced fundamentally, and the condition of, the phenomenon that the vibration amplitude of the drum of the washing machine is easily intensified in a self-excitation mode due to the fact that the vibration amplitude cannot be fundamentally relieved by an original buffering and damping structure, and therefore the internal structure of the drum is damaged is avoided.

3. According to the invention, the reset springs are fixedly arranged on both sides of the rotary disc, one end of each reset spring is connected with the rotary disc, so that the rotary disc can elastically deform the reset springs after rotating under the cheap action of the left driven shaft and the right driven shaft, and the reset springs can reset and drive the rotary disc to rotate and reset after the dehydration step of the roller is finished, so that the left driven shaft and the right driven shaft are restored to the initial positions, preparation work is prepared for the next step flow, and the stability of the device during working is improved.

4. According to the invention, the radian of the opening of the cross buckle is ninety degrees, the cross buckle is in a cross shape, the included angle between the opening directions is ninety degrees, and the length of the strip-shaped inserting strip is smaller than the opening width of the cross buckle, so that the strip-shaped inserting strip can enter the approach of the cross buckle at any angle when the left driven shaft and the right driven shaft are reset, and the strip-shaped inserting strip can be automatically matched with the cross buckle through the inclined plane design at the two ends of the strip-shaped inserting strip and the design of the opening of the cross buckle and the self-carrying property that the inner rings of the bearing I and the bearing II are very easy to rotate, so that the preparation work can be carried out on the strip-shaped inserting strip for the next step flow.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic view of the main part of the structure of the present invention;

FIG. 4 is a schematic sectional view of a main portion of the structure of the present invention;

FIG. 5 is an enlarged view A of FIG. 4 according to the present invention;

FIG. 6 shows the connection between the left driven shaft, the right driven shaft and the reset device according to the present invention;

FIG. 7 is a schematic view of a structural balance structure of the present invention;

FIG. 8 is a schematic cross-sectional view taken along the line A in FIG. 7 according to the present invention;

FIG. 9 is a schematic view of a left driven shaft of the present invention construction;

FIG. 10 is a schematic view of the right driven shaft of the present invention.

In the figure: 1. a drum; 2. a drive shaft; 3. a belt pulley; 4. a driving gear; 5. a driven gear; 6. a left driven shaft; 7. a bearing I; 8. a rotating device; 81. rotating the disc; 82a and a sliding groove I; 82b, a sliding groove II; 83. a resetting device; 831. a rotating shaft; 832. a turntable; 833. a return spring; 84. a chain; 9. an outer bearing; 10. a bearing II; 11. a right driven shaft; 12. a balancing weight; 13. cross buckling; 14. and (5) strip-shaped inserting strips.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, an anti-eccentric rotation device for a drum of a horizontal washing machine comprises a drum 1, a driving shaft 2 is fixedly installed on one side of the drum 1, a belt pulley 3 is fixedly sleeved on the outer surface of the driving shaft 2, a driving gear 4 is fixedly installed at one end of the driving shaft 2, a driven gear 5 is arranged on the outer side of the driving gear 4, a left driven shaft 6 is fixedly installed at one end of the driven gear 5, a cross buckle 13 is fixedly installed at one end of the left driven shaft 6, a bearing i 7 is movably sleeved on the outer surface of the left driven shaft 6, a rotation device 8 is movably sleeved on the outer surface of the bearing i 7, the rotation device 8 comprises a rotation disc 81, sliding grooves i 82a and sliding grooves ii 82b are respectively formed in positions on two sides inside the rotation disc 81, the bearing i 7 is movably sleeved inside the sliding grooves i 82a, the bearing ii 10 is, the bearing II 10 is movably sleeved with a right driven shaft 11, one end of the right driven shaft 11 is fixedly provided with a strip-shaped inserting strip 14, a cross buckle 13 and the strip-shaped inserting strip 14 are clamped with each other, the radian of an opening of the cross buckle 13 is ninety degrees, the shape of the cross buckle 13 is cross-shaped, an included angle between opening directions is ninety degrees, the length of the strip-shaped inserting strip 14 is smaller than the width of the opening of the cross buckle 13, the outer surface of the right driven shaft 11 is movably sleeved with a balancing weight 12, the positions of the top and the bottom inside a rotating disc 81 are provided with circular grooves, a resetting device 83 is fixedly arranged in each groove, the resetting device 83 comprises a rotating shaft 831, the outer surface of the rotating shaft 831 is movably sleeved with a rotating disc 832, the outer surface of the rotating disc 832 is contacted with a lock chain 84, both sides of the rotating disc 832 are fixedly provided with a resetting spring 833, one end, the reset device 83 is movably sleeved with the left driven shaft 6 and the right driven shaft 11 through a chain 84, the axis of the left driven shaft 6 and the axis of the right driven shaft 11 are positioned on the same center, the outer bearing 9 is movably sleeved on the outer surface of the rotating device 8, and the rotating disc 81 is fixed with the inner ring of the outer bearing 9 in a clamping mode.

Wherein, the driven gear 5 is arranged outside the driving gear 4, when the quantity of clothes in the drum 1 is large and the drum enters into a dehydration mode, the belt pulley 3 drives the drum 1 to rotate with high speed through the driving shaft 2 and starts to generate deviation and vibration, at the moment, the driving gear 4 can simultaneously perform deviation and vibration along with the drum 1 and contact with the inside of the driven gear 5 and mesh with the inside of the driven gear 5 so as to drive the driven gear 5 to rotate, meanwhile, the cross buckle 13 and the strip-shaped insert strip 14 are mutually clamped and connected so as to drive the left driven shaft 6 and the right driven shaft 11 to rotate, thereby increasing the load to prevent the rotating speed of the drum 1 from further rising and limit the vibration amplitude of the drum 1 in the driven gear 5 so as to prevent the drum 1 from generating self-excitation aggravation, improving the stability of the washing machine during dehydration operation, and the balancing weight 12 is movably sleeved on, and thereby right driven shaft 11's rotation center does not take place the skew this moment and can't drive balancing weight 12 and rotate, avoided cylinder 1 not make driven gear 5 take place the skew often make balancing weight 12 take place to rotate thereby aggravate the produced centrifugal effect of cylinder 1 and make the problem of vibration aggravation, improved the stability of the device work.

Wherein, the bearing I7 is movably sleeved in the sliding groove I82 a, so that the inside of the roller 1 is excessively coated, the vibration amplitude of the driving gear 4 cannot be limited in the driven gear 5, the driven gear 5 deflects under the vibration of the driving gear 4, at the moment, the driven gear 5 drives the left driven shaft 6 to synchronously deflect, the reset device 83 is movably sleeved with the left driven shaft 6 and the right driven shaft 11 through the lock chain 84, so that the right driven shaft 11 deflects in the opposite direction through the dragging of the lock chain 84 when the left driven shaft 6 deflects, at the moment, the strip-shaped inserting strip 14 is separated from the inside of the cross buckle 13, so that the left driven shaft 6 and the right driven shaft 11 lose the clamping effect and lose the transmission effect, and the left driven shaft 6 and the right driven shaft 11 dislocate at the moment and become the transmission device of the rotating device 8, so as to drive the rotating device 8 to rotate in the inner, it can be known from the background art that the offset vibration direction of the drum 1 is in the direction of the position where more laundry is gathered in the drum 1, and the offset directions of the left driven shaft 6 and the right driven shaft 11 are opposite, so that the offset direction of the right driven shaft 11 is in the opposite direction of the position where more laundry is gathered in the drum 1, and at the same time, when the right driven shaft 11 offsets the original rotation center and rotates in the rotating device 8, the counterweight 12 can be swung to rotate synchronously, at this time, the centrifugal force generated by the counterweight 12 is opposite to the centrifugal force generated by the drum 1 and causing vibration, so that the centrifugal force is balanced mutually, thereby reducing the centrifugal effect of the drum 1 and reducing the vibration amplitude of the drum 1, and at the same time, the larger the centrifugal force of the drum 1 is, the larger the offset amount of the left driven shaft 6 and the right driven shaft 11 is also caused, so that the, therefore, the centrifugal force of the roller 1 and the centrifugal force of the balancing weight 12 are kept in a dynamic balance state, so that the vibration amplitude of the roller 1 is reduced fundamentally, the condition of self-excitation aggravation is eliminated, and the phenomenon that the vibration amplitude of the roller of the washing machine is aggravated easily in a self-excitation mode due to the fact that the original buffering and damping structure cannot relieve the vibration amplitude fundamentally to damage the internal structure of the roller is avoided.

Wherein, all fixed mounting has reset spring 833 through the both sides of carousel 832, the one end of reset spring 833 is connected with rolling disc 81, make carousel 832 can make reset spring 833 take place elastic deformation after taking place to rotate under the cheap effect of left driven shaft 6 and right driven shaft 11, reset spring 833 can reset and drive carousel 832 and rotate and reset after the dehydration step of cylinder 1, thereby make left driven shaft 6 and right driven shaft 11 resume to initial position on, prepare work for next step flow, the stability of the device during operation has been improved.

Wherein, the radian of the opening through the cross buckle 13 is ninety degrees, the appearance of the cross buckle 13 is cross-shaped, the included angle between the opening directions is ninety degrees, the length of the strip-shaped inserting strip 14 is smaller than the opening width of the cross buckle 13, so that the strip-shaped inserting strip 14 can enter the closing opening of the cross buckle 13 at any angle when the left driven shaft 6 and the right driven shaft 11 are reset, the strip-shaped inserting strip 14 can automatically cooperate with the cross buckle 13 through the inclined plane design at the two ends of the strip-shaped inserting strip 14 and the design at the opening of the cross buckle 13, and meanwhile, the self-contained property that the inner rings of the bearing I7 and the bearing II 10 are easy to rotate is adopted, so that the preparation work is well carried out for the next step flow, and the stability of the device during.

Wherein, the outside through driving gear 4 is provided with driven gear 5, make driving gear 4 not contact with driven gear 5 under normal conditions, make inside clothing of drum 1 not enough to make the drum 1 take place under the condition of vibration can let the main part in the device be in the state of stopping standby, avoided the main part to keep moving with drum 1 is synchronous all the time, make the condition that the life of main part reduces, avoided the problem that the power unit of washing machine seriously influences the life of washing machine under the long-time too high condition of load simultaneously, the life of the device has been improved.

The using method of the invention is as follows:

when the amount of laundry in the drum 1 is small, the vibration amplitude of the drum 1 cannot make the driving gear 4 contact with the driven gear 5, and at this time, the main part of the apparatus is in a standby state.

Great when the clothing volume in the cylinder 1, the vibration range of cylinder 1 just makes driving gear 4 and driven gear 5 contact, thereby it is rotatory to drive driven gear 5 through driving gear 4 and driven gear 5's meshing this moment to thereby it makes driven gear 5 drive left driven shaft 6 and right driven shaft 11 to rotate in step through the mutual joint between cross 13 and the bar cutting 14, thereby it prescribes a limit to the purpose of the inboard of driven gear 5 thereby reaching restriction cylinder 1 amplitude with driving gear 4 to improve the load.

When the amount of the laundry in the drum 1 is very large, the amplitude of the drum 1 is also large, so that the driving gear 4 drives the driven gear 5 to deviate, and therefore the left driven shaft 6 connected with the driven gear 5 synchronously deviates, and the deviation direction of the left driven shaft 6 is the same as the deviation vibration direction of the drum 1, the left driven shaft 6 deviates and simultaneously the right driven shaft 11 deviates in the opposite direction through the dragging of the chain 84, at this time, the strip-shaped inserting strip 14 is separated from the inside of the cross buckle 13, so that the left driven shaft 6 and the right driven shaft 11 lose the clamping effect and lose the transmission effect, and the left driven shaft 6 and the right driven shaft 11 dislocate at this time and become the transmission device of the rotating device 8, so as to drive the rotating device 8 to rotate in the inner ring of the outer bearing 9, and the right driven shaft 11 can swing the counterweight 12 to synchronously rotate when deviating the original rotation center in, at this time, the centrifugal force generated by the weight 12 is opposite to the centrifugal force generated by the drum 1 to cause vibration, so that they are balanced with each other.

After the dewatering step is finished, the return spring 833 can return and drive the chain 84 to return, and the left driven shaft 6 and the right driven shaft 11 are returned and restored to the clamping state through the dragging effect of the chain 84.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a horizontal washing machine cylinder prevents eccentric rotating device, includes cylinder (1), its characterized in that: one side fixed mounting of cylinder (1) has driving shaft (2), belt pulley (3) have been cup jointed to the external fixed surface of driving shaft (2), the one end fixed mounting of driving shaft (2) has driving gear (4), the outside of driving gear (4) is provided with driven gear (5), the one end fixed mounting of driven gear (5) has left driven shaft (6), the surface activity of left driven shaft (6) has cup jointed bearing I (7), rotating device (8) have been cup jointed to the surface activity of bearing I (7), outer bearing (9) have been cup jointed to the surface activity of rotating device (8).

2. A drum anti-eccentric rotation device of a side-by-side washing machine according to claim 1, characterized in that: the rotating device (8) comprises a rotating disc (81), the positions on two sides in the rotating disc (81) are respectively provided with a sliding groove I (82a) and a sliding groove II (82b), the bearing I (7) is movably sleeved in the sliding groove I (82a), the bearing II (10) is movably sleeved in the sliding groove II (82b), a right driven shaft (11) is movably sleeved in the bearing II (10), a balancing weight (12) is movably sleeved on the outer surface of the right driven shaft (11), circular grooves are arranged at the top and the bottom of the rotating disc (81) and a reset device (83) is fixedly arranged in the grooves, the outer surface of the reset device (83) is movably sleeved with a chain (84), and the reset device (83) is movably sleeved with the left driven shaft (6) and the right driven shaft (11) through the chain (84).

3. A drum anti-eccentric rotation device of a side-by-side washing machine according to claim 2, characterized in that: the rotating disc (81) is fixed with the inner ring of the outer bearing (9) in a clamping mode.

4. A drum anti-eccentric rotation device of a side-by-side washing machine according to claim 2, characterized in that: the axis of the left driven shaft (6) and the axis of the right driven shaft (11) are positioned on the same center.

5. A drum anti-eccentric rotation device of a side-by-side washing machine according to claim 2, characterized in that: the one end fixed mounting of a left side driven shaft (6) has cross (13), the one end fixed mounting of right side driven shaft (11) has bar cutting (14), cross (13) and bar cutting (14) joint each other, the opening part radian of cross (13) is ninety degrees, the appearance of cross (13) is that the contained angle between cross and the opening direction is ninety degrees, the length of bar cutting (14) is less than the opening width of cross (13).

6. A drum anti-eccentric rotation device of a side-by-side washing machine according to claim 2, characterized in that: resetting means (83) are including pivot (831), carousel (832) have been cup jointed in the surface activity of pivot (831), the surface and chain (84) of carousel (832) contact, the equal fixed mounting in both sides of carousel (832) has reset spring (833), the one end of reset spring (833) is connected with rolling disc (81).

Images