CN201012979Y - Vibration damping support structure of inclined horizontal drum washing machine - Google Patents

Abstract

The utility model discloses a vibration damping supporting structure of an inclined horizontal drum washing machine, which comprises a washing machine bottom plate, a vertical inclined vibration damper and a fixing part of a washing device, wherein the central axis of the fixing part is inclined horizontal, the vertical inclined vibration damper is supported between the fixing part and the bottom plate, and the vibration damping supporting structure is characterized in that the vibration damping supporting structure consists of 3 vibration damping supports, wherein two front vibration dampers adopt vertical inclined vibration dampers, the lower ends of the front vibration dampers are fixed on the bottom plate, and the upper ends of the front vibration dampers are arranged at the left side and the right side of the front part of the fixing part; and a 3 rd vibration reduction support, namely a rear support piece, is arranged in the middle of the rear part of the fixing piece, the upper end of the rear support piece is connected with the fixing piece, and the lower end of the rear support piece is fixed on the bottom plate. The utility model discloses a damping bearing structure adopts 3 point bearing structure, and this structure possesses the required intensity of supporting this damping bearing structure on the one hand, and this 3 point bearing structure of on the other hand can bear certain range of swaying, has fine anti vibration effect.

Description

A vibration-damping support structure for an inclined-horizontal drum washing machine

technical field

The utility model relates to a support structure of a drum washing machine, in particular to a vibration-damping support structure of an oblique drum washing machine which is beneficial to eliminating the resonance generated when the drum rotates at high speed.

Background technique

In the prior art, the drum of the front-loading washing machine is generally a horizontal structure, that is, the central axis of the rotating drum is located at the horizontal position, and its support mechanism adopts a structure in which the upper part of the drum is suspended on the frame, and the lower part of the drum is provided with a buffer connected to the bottom plate. The disadvantage of this method is that when the drum is loaded, if the load is unevenly distributed in the drum, it is easy to cause the drum to resonate during dehydration, resulting in obvious amplitude and vibration displacement of the washing machine.

In recent years, another type of inclined-horizontal drum washing machine has been developed, that is, the central axis of the rotating drum and the horizontal line form a horizontal inclination angle α, and α is an acute angle, which constitutes a structural form in which the front end of the drum is higher than the rear end, and its supporting mechanism has a drum suspension structure , there is also a lower support method. Chinese invention patent application 200610000552.8 "Drum Washing Machine" discloses an inclined drum washing machine (referring to Fig. 1 ) that adopts a drum suspension support mechanism. Its disadvantage is that the supporting mechanism is relatively complicated, and the overall strength requirement of the water tank 12 is relatively high, so the production cost is relatively high; The gravity of the drum can be decomposed into two components perpendicular to or parallel to the central axis of the drum. Therefore, when the drum 11 is in a dynamic state, especially in the dehydration state, it is inevitable to shake back and forth. The control strength of rocking back and forth is not ideal, which means that a larger gap needs to be reserved between the outer frame 1 of the washing machine and the water tank 12 to ensure that the parts will not collide during operation.

The other kind of oblique drum adopting the lower support method, its support mechanism adopts several vertical oblique shock absorbers to support the drum on the bottom plate of the washing machine, Chinese utility model patent 200420072886. What is disclosed is the oblique drum washing machine that adopts this type of support mechanism. Referring to Figure 2, the washing machine consists of a shell 5, a drum 4, a vertical oblique front shock absorber 1 and a rear shock absorber 2, parallel to the central axis of the drum. Longitudinal shock absorber 3, a number of drum axial struts 8 and a fixed bracket formed by the rear seat 14 connected thereto, etc., wherein the setting of longitudinal shock absorber 3 is to control the front and rear movement of the drum. It is composed of two The rear propulsion bearing composed of two low-friction plates, one of which is set at the rear of the fixed water tank or the fixed bracket, and the other is set at the corresponding position of the shell through a compression spring, under the action of the spring, the two low-friction plates Always press together. However, after trial production, it was found that this technical solution still has shortcomings: in a certain speed range of the drum (such as about 600 rpm), the washing machine will generate a large resonance, resulting in increased noise and vibration displacement of the whole machine , Frequent resonance will also affect the service life of the washing machine.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a vibration-damping support structure of an inclined-horizontal drum washing machine that can effectively reduce vibration and is beneficial to reduce manufacturing costs.

The technical scheme adopted by the utility model to solve the technical problem is: a vibration-damping support structure of an inclined-horizontal drum washing machine, which includes a washing machine bottom plate, a vertical oblique shock absorber and a fixing part of a washing device, wherein the The central axis of the fixing part is oblique and horizontal, and the vertical oblique shock absorber is supported between the fixing part and the bottom plate. It is characterized in that the vibration-damping support structure is composed of 3 vibration-damping supports, two The front shock absorber adopts a vertical oblique shock absorber, and their lower ends are fixed on the bottom plate, and their upper ends are arranged on the left and right sides of the front part of the fixing part; It is called the rear support, the upper end of the rear support is connected with the fixing piece, and the lower end is fixed on the base plate.

The vibration-damping support structure of the utility model adopts a 3-point support structure, and the 3 vibration-damping supports are located on the three vertices of the triangle. The structure can withstand a certain swing range, has a good damping effect, and can eliminate the resonance phenomenon of the drum at a certain speed range.

The rear support described in the utility model is a vibration-damping elastic structure, which includes an upper support block, a vibration-damping elastic block and a lower support block, wherein the vibration-damping elastic block is located in the middle of the upper and lower support blocks, and is connected to the upper and lower support blocks. The supporting blocks are fixedly connected, wherein, the upper supporting block is connected with the rear part of the roller fixing part, and the lower supporting block is the supporting foot of the rear supporting part, and its lower end is fixed on the base plate.

The utility model can be improved as follows: the rear supporting part is fixed on the bottom plate below the rear part of the fixing part, and its upper part has a connection structure adapted to the connection part of the rear part of the roller fixing part. Correspondingly, the rear part of the fixing part is connected A support block is provided at the connection structure corresponding to the upper part of the rear support member, and the rear part of the fixing member is supported on the rear support member through the support block.

The utility model can be further improved as follows: the rear support is composed of upper and lower parts, wherein the lower part is the elastic support foot of the rear support, which is made of elastic members and connected with the bottom plate, and the upper part of the rear support It is a rigid support block, the lower end of which is fixedly connected with the elastic support feet, and the upper end has a connection structure adapted to the support block on the fixing piece.

The elastic support feet of the rear support in the utility model can adopt one or more combinations of damping rubber, damping springs or plate springs.

The connection structure of the supporting block on the rear supporting part described in the utility model that is compatible with the supporting block on the fixing part of the washing device can be an arc-shaped groove, and the corresponding supporting block on the fixing part is The circular-arc-shaped projection protruding downwards is joined together; the grooves and projections of the two can also be exchanged.

The connecting structure adapted to the supporting block on the fixing part of the washing device at the upper end of the rear supporting part described in the utility model can also be a right-angled column whose end face is L-shaped, and the supporting block on the corresponding fixing part is Rectangular columns, the two are joined; both L-shaped right-angled columns and columns can be reversed.

The fixing part of the washing device described in the utility model can be a fixed bracket, and can also be a fixed outer bucket of the drum. The drum is located in the fixed bracket or the fixed outer bucket and is coaxially arranged with it. It is positioned on the rear end face of the fixed bracket or the fixed outer barrel.

The lower surface of the bottom plate of the utility model is also provided with a reinforcing support for supporting the bottom plate at a position corresponding to the supporting feet of the rear support member. During the working process of the washing machine, the rear support member is subjected to a relatively large force, and the setting of the reinforced support can prevent the base at the supporting foot from being deformed due to the fact that the base at the supporting foot is always subjected to a large force.

The front shock absorber of the utility model is mainly composed of a hollow main body, a strut, a compression spring and a connecting end block, wherein the lower part of the strut is inserted into the main body and connected with the compression spring installed in the middle and lower part of the inner cavity of the main body , constituting an elastic support main body, the connecting end blocks are arranged at both ends of the elastic supporting main body, which is a flexible connection structure connecting the front shock absorber with the fixing part and the base of the washing device. Composed of abrasive discs, wherein the end block and the vibration-damping rubber block are set on the connecting shaft at the lower end of the main body, or the upper part of the pillar, and the vibration-damping rubber block is located between the lower end surface of the main body and the end block, or the pillar positioning piece and the end block Between them, the wear-resistant sheets are respectively fixed on the corresponding end faces of the end block and the rubber block.

Compared with the prior art, the beneficial effect of the utility model is: the utility model adopts 3-point damping support roller components, which not only simplifies the support structure, but also makes the manufacture and installation of the vibration damping support structure easier and simpler, thereby It is beneficial to reduce the manufacturing cost of the washing machine; and because the longitudinal shock absorber in the prior art is removed, the resonance phenomenon of the washing machine at a certain speed range is avoided, thereby eliminating the noise caused by the resonance and solving the problem that the resonance affects the service life of the washing machine. adverse effects.

Description of drawings

The utility model will be described in further detail below in conjunction with embodiment and accompanying drawing:

Fig. 1 is a front sectional view of an oblique drum washing machine adopting a drum suspension support mechanism in the prior art (the numbers in the figure follow the numbers in the original patent document, and only the corresponding content in the background technology is applicable);

Fig. 2 is a front cross-sectional view of an oblique drum washing machine adopting a support method under the drum in the prior art (the numbers in the figure follow the numbers in the original patent document, and only the corresponding content in the background technology is applicable);

Fig. 3 is a side view sectional view of the first embodiment of the utility model;

Fig. 4 is the rear view sectional view of the utility model 1st embodiment;

Fig. 5 is the front section view of the structure of the front shock absorber in the first embodiment of the utility model;

Fig. 6 is a rear view sectional view of the second embodiment of the utility model;

Figure 7 is a partial enlarged view of Figure 6;

Fig. 8 is a rear view sectional view of the third embodiment of the utility model;

Fig. 9 is a partial enlarged view of Fig. 8;

Fig. 10 is a rear view sectional view of the fourth embodiment of the utility model;

Figure 11 is a partial enlarged view of Figure 10;

Fig. 12 is a rear view sectional view of the fifth embodiment of the utility model;

Figure 13 is a partial enlarged view of Figure 12;

Fig. 14 is a rear view sectional view of the sixth embodiment of the present invention;

Figure 15 is a partial enlarged view of Figure 14;

Fig. 16 is a rear view sectional view of the seventh embodiment of the present utility model;

Figure 17 is a partial enlarged view of Figure 14;

The parts and components in all the embodiments in the figures of the utility model are labeled uniformly, and are not related to the components with the same labels in the background art.

Detailed ways

Embodiment one

The damping supporting structure of a kind of oblique horizontal drum washing machine shown in Figure 3～5 is the first embodiment of the present utility model, and the washing device of washing machine is installed in the washing machine casing 1, and this damping supporting structure is formed by washing machine Bottom plate 5, 3 shock-absorbing support and fixing part 2 of washing device, wherein, fixing part 2 of washing device is to fix the outer tub, its central axis is oblique and horizontal, and two of the three shock-absorbing supports are front damping supports. The shock absorber 4 adopts a vertical oblique shock absorber, and their lower ends are respectively fixed on the left and right sides of the front part of the base plate, and the upper ends are respectively connected to the left and right sides of the front part of the fixed outer barrel 2; the third damping support is Supported in the middle of the rear of the fixed outer tub 2, it is called the rear support 3. The upper end of the rear support 3 is connected to the fixed outer tub 2, and its lower end is fixed on the bottom plate 5. The three vibration-damping support feet are located in the triangular On the three vertices, wherein the supporting feet of the rear supporting member 3 are located on the center line of the line connecting the other two supporting feet, the rear supporting member 3 is vertically fixed on the base plate 5 .

As shown in Fig. 3 and Fig. 4, the rear support member 3 in the utility model is a damping elastic structure, which is a cylindrical structure as a whole, and it includes an upper support block 31, a vibration damping elastic block 32 and a lower support block 33, wherein The shock-absorbing elastic block 32 is made of shock-absorbing rubber, it is located in the middle of the upper and lower support blocks 31,33, and is fixedly connected with the upper and lower support blocks 31,33, wherein the upper support block 31 is connected with the fixed outer barrel 2 The supporting blocks arranged correspondingly at the rear are connected in plane, and the lower supporting block 33 is the supporting foot of the rear supporting member 3 , which is fixed on the bottom plate 5 . The damping elastic block 32 can also be made of other elastic materials.

The drum in this embodiment is located in the fixed outer tub 2 and arranged coaxially therewith, and the rotating shaft driving the drum is positioned on the rear end surface of the fixed outer tub 2 through bearings.

The lower surface of the bottom plate 5 of the utility model is also provided with a reinforcing support 6 at the position corresponding to the rear support 3 , and the outer edge size of the reinforcing support 6 is preferably larger than the outer edge size of the rear support 3 .

As shown in Figure 5, the front shock absorber of this embodiment is mainly composed of a hollow main body part 41, a strut 42, a compression spring 43 and a connecting end block 44, wherein the lower part of the strut 42 is inserted into the upper part of the main body part 41 and installed in the The compression spring 43 in the middle and lower part of the inner chamber of the main body part 41 is connected to form an elastic supporting body, and the connecting end blocks 44 are arranged at the two ends of the elastic supporting body, which are the fixed outer tub 2 and the base 5 of the front shock absorber and the washing device. The flexible connection structure of the connection is composed of an end block, a vibration-damping rubber block and a wear-resistant sheet, wherein the end block and the vibration-damping rubber block are sleeved on the connecting shaft at the lower end of the main body 41, or the upper part of the pillar 42, and the vibration-damping rubber The block is located between the lower end surface of the main body part 41 and the end block, or between the positioning part of the pillar 42 and the end block, and the wear-resistant sheet is respectively fixed on the corresponding end surfaces of the end block and the rubber block.

Embodiment two

The vibration-damping support structure of an inclined drum washing machine shown in Fig. 6 and Fig. 7 is the second embodiment of the present utility model. The difference from the first embodiment is that the rear support 3 is divided into upper and lower parts. The lower part is the elastic support foot of the rear support 3, which is made of shock-absorbing rubber. The elastic support foot is connected to the bottom plate 5, and the upper part of the rear support 3 is a rigid support block, and its lower end is fixedly connected with the elastic support foot. The upper end has a connection structure adapted to the rear of the fixed outer tub 2, the rear of the fixed outer tub 2 is provided with a support block 21 corresponding to the rear support member 3, and the rear of the fixed outer tub 2 is supported on the rear support member 3 through the support block 21 Correspondingly, the upper support block of the rear support 3 has a connection structure adapted to the support block on the fixed outer tub 2, the upper support block of the rear support 3 is a protruding semicircular bump, and The corresponding support block 21 on the fixed outer barrel 2 is a semicircular groove with an opening downward, and the two are engaged with each other.

Embodiment three

The damping support structure of a kind of oblique drum washing machine shown in Fig. 8 and Fig. 9 is the third embodiment of the present utility model. The difference from the second embodiment is that the rear support member 3 in this embodiment is connected with the fixed outer The connection structure of the support block 21 of the barrel 2 is a semicircular groove, and the corresponding support block 21 on the fixed outer barrel 2 is a semicircular protrusion protruding downward, and the two are mutually engaged.

Embodiment four

The damping support structure of a kind of oblique drum washing machine shown in Fig. 10 and Fig. 11 is the fourth embodiment of the present utility model. The difference from the second embodiment is that the elastic support of the rear support member 3 in this embodiment Made of damping springs 7, the damping springs 7 are two, symmetrically arranged below the upper support block.

Embodiment five

Figure 12 and Figure 13 show a vibration-damping support structure for an inclined drum washing machine, which is the fifth embodiment of the present utility model. The difference from the above-mentioned embodiment is that the rear support 3 is a single piece, and its It is a spring plate 8, which is fixed on the bottom plate 5, and the support block 21 on the fixed outer tub 2 has an arched top that is compatible with the rear support 3, and the rear support 3 is a protruding semicircular bump, with which The corresponding support block 21 on the fixed outer barrel 2 is a downward semicircular groove, and the two cooperate with each other.

Embodiment six

The vibration-damping support structure of a kind of inclined-horizontal drum washing machine shown in Fig. 14 and Fig. 15 is the sixth embodiment of the present utility model. The difference from Embodiment 2 is that the connection structure of the support block on the rear support 3 in this embodiment and the support block 21 on the fixed outer tub 2 is a rectangular columnar body, and the corresponding fixing member The supporting block 21 on the 2 is a right-angled column whose end face is "L" shape, and the right-angled parts where the two are in contact all adopt circular arc transitions. The L-shaped right-angled column opens inward.

Embodiment seven

16 and 17 show a vibration-damping support structure of an inclined drum washing machine, which is the seventh embodiment of the present invention. The difference from Embodiment 6 is that the connection structure of the support block on the rear support 3 in this embodiment that is compatible with the support block 21 on the fixed outer tub 2 is an L-shaped right-angle column, and the corresponding fixed The support block 21 on the part 2 is a rectangular column, and the two are connected.

Claims (10)

1. the vibration-damping supporting structure of a horizontally-inclined barrel washing machine, it comprises washing machine base plate, vertical oblique damper and the fixture of wash mill, wherein, the axis of described fixture is a horizontally-inclined, vertical oblique damper is supported between described fixture and the base plate, it is characterized in that: described vibration-damping supporting structure is supported by 3 vibration dampings to be formed, wherein two front dampers adopt vertical oblique damper, their lower end is fixed on the base plate, and the upper end then is arranged on the right and left of described fixture front portion; The 3rd vibration damping is set in the middle of the fixture rear portion supports, be called the back support member, the upper end of this back support member links to each other with fixture, and its lower end is fixed on the base plate.

2. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 1, it is characterized in that: described back support member is the damping elastomer structure, it comprises upper support piece, damping elastomer piece and lower support piece, wherein the damping elastomer piece is positioned at the centre of upper and lower back-up block, and be fixedly linked with upper and lower back-up block, wherein, the upper support piece links to each other with the rear portion of cylinder fixture, the lower support piece is the feet of back support member, and its lower end is fixed on the base plate.

3. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 1, it is characterized in that: described back support member is fixed on the base plate of fixture lower rear, its top has the syndeton that adapts with junction, cylinder fixture rear portion, correspondingly, the syndeton on support member top is provided with back-up block after the correspondence of junction, fixture rear portion, and the fixture rear portion is supported on the support member of back by described back-up block.

4. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 3, it is characterized in that: described back support member is that two parts are formed up and down, wherein, the bottom is the resiliency supported pin of back support member, made by elastic component, and be connected with base plate, the top of back support member is the rigid support piece, fixedly connected with the resiliency supported pin in its lower end, the upper end have with fixture on the syndeton that adapts of back-up block.

5. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 4 is characterized in that: described resiliency supported pin is for adopting one or more the combination in vibration isolation rubber or shock-absorbing spring or the plate-shaped springs.

6. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 4, it is characterized in that: the syndeton that the back-up block with on the wash mill fixture that described back support member upper support piece is had adapts is the groove of circular arc, back-up block on the Dui Ying fixture then is the circular arc projection that protrudes downwards with it, and both engage; The groove of the two, projection are exchanged and also can.

7. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 4, it is characterized in that: the syndeton that the back-up block with on the wash mill fixture that support member upper end, described back is had adapts is that end face is L shaped quarter pillar, back-up block on the Dui Ying fixture is the column of rectangle then with it, and both engage; The L shaped quarter pillar of the two, column are exchanged and also can.

8. according to the vibration-damping supporting structure of the arbitrary described a kind of horizontally-inclined barrel washing machine of claim 1 to 7, it is characterized in that: the fixture of described wash mill is fixing outer bucket, cylinder is positioned at described fixedly water tank and coaxial with it setting, drives rotating shaft that cylinder rotates and is positioned on the rear portion end face of fixing water tank by bearing.

9. according to the vibration-damping supporting structure of the arbitrary described a kind of horizontally-inclined barrel washing machine of claim 1 to 7, it is characterized in that: the feet opposite position place of the lower surface of described base plate and described back support member also is provided with the reinforcement bearing.

10. the vibration-damping supporting structure of a kind of horizontally-inclined barrel washing machine according to claim 9, it is characterized in that: front damper comprises the main component of hollow, pillar, compress spring and be connected the end block composition, wherein, be inserted in the main component pillar bottom, and be connected with the compression spring of the middle and lower part that is installed in the main component inner chamber, constitute a resiliency supported main body, connect the two ends that end block is arranged on this resiliency supported main body, the flexible connecting structure that to be front damper be connected with base with the fixture of wash mill, it is by end block, vibration isolation rubber piece and wear plate are formed, wherein, end block and vibration isolation rubber piece are enclosed within on the connecting axle of main component lower end, the vibration isolation rubber piece is between main component lower surface and end block, and wear plate is fixed on the end face of end block and block rubber correspondence.

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