CN214300817U - Vibration damper for pulsator washing machine - Google Patents
Vibration damper for pulsator washing machine Download PDFInfo
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- CN214300817U CN214300817U CN202022725666.7U CN202022725666U CN214300817U CN 214300817 U CN214300817 U CN 214300817U CN 202022725666 U CN202022725666 U CN 202022725666U CN 214300817 U CN214300817 U CN 214300817U
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- spring
- damping
- damping sleeve
- vibration damper
- washing machine
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Abstract
The utility model provides a vibration damper for a pulsator washing machine, which comprises a suspender, a suspender seat is arranged at the upper end of the suspender, a spring lower support is arranged at the lower end of the suspender, a spring upper support is slidably arranged on the suspender, the spring upper support is arranged between the suspender seat and the spring lower support, a damping sleeve is fixedly arranged at the lower end of the spring upper support, the damping sleeve is provided with a damping spring sleeved on the suspender, one end of the damping spring is propped against the upper end of the damping sleeve or the lower end of the spring upper support, the lower end of the damping sleeve is open, the other end of the damping spring extends out of the damping sleeve and is propped against the spring lower support, the inner surface of the damping sleeve is a friction surface, and the friction surface and the damping spring are in interference fit, the utility model adopts the damping spring and the damping sleeve to rub in the interference fit mode, thereby playing the roles of buffering and shock absorption, and improving the heat dissipation and noise reduction effects and the stability of the vibration damper, and the service life of the whole vibration damper is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the washing machine technique and specifically relates to a damping device for rotary drum washing machine is related to.
Background
The pulsator washing machine has a pulsator driven by a motor, and the clothes roll up and down with water. In the working process, due to the load action of clothes and water and the centrifugal action generated by water rotation, the water collecting cylinder of the washing machine inevitably generates resonance, so that the washing machine generates larger noise in the working process and even damages the washing machine, and therefore, a vibration damping device is needed to bear the load of the water collecting cylinder of the washing machine and eliminate the resonance.
The vibration damper who uses among current rotary drum washing machine mainly is friction and air damping and uses simultaneously, comprises through sleeve and the rubber piston of installing on the jib, realizes rotary drum washing machine's damping through the friction between sleeve and the jib to and the air damping that produces when the rubber piston slides, but the main problem that exists of the vibration damper of above-mentioned structure is: the damping effect generated by the movement of the rubber piston is limited, and the damping effect on the resonance of the water accumulating cylinder of the washing machine is poor; and the rubber piston can be worn after being used for a long time, and the air damping effect is seriously influenced.
Therefore, there is a need for a vibration damping device for a pulsator washing machine capable of solving the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vibration damper for rotary drum washing machine adopts damping spring and damping sleeve pipe to rub with interference fit's mode, plays buffering and absorbing effect to improve vibration damper's heat dissipation noise reduction effect and stability, and prolonged whole vibration damper's life.
The technical scheme of the utility model is realized like this:
vibration damper for rotary drum washing machine, including a jib, the jib seat is installed to the upper end of jib, hold in the palm under the spring is installed to the lower extreme of jib, slidable mounting has the spring to hold in the palm on the jib, the spring hold in the palm set up in between jib seat and the spring hold in the palm down, the lower extreme fixed mounting that the spring held in the palm has the damping sleeve pipe, the damping sleeve pipe is provided with one set and locates damping spring on the jib, damping spring's one end support lean on in the lower extreme that damping sleeve pipe's upper end or spring held in the palm on, the sheathed tube lower extreme of damping is uncovered setting, damping spring's the other end stretches out damping sleeve pipe and support in hold in the palm under the spring, damping sleeve pipe's internal surface is the friction surface, the friction surface with be interference fit between the damping spring.
As a preferable technical solution, a plurality of friction stripes are arranged on a friction surface of the damping sleeve, and each friction stripe extends along an axial direction of the damping sleeve.
As a preferable technical solution, the upper end surface of the spring lower support is provided with a positioning step for preventing the damping spring from radially deviating.
As a preferred technical scheme, a first limiting block for supporting the lower support of the spring is arranged at the lower end of the suspension rod, and a second limiting block for fixing the suspension rod seat is arranged at the upper end of the suspension rod.
As a preferable technical scheme, the upper end of the damping sleeve is provided with an inserting hole, the end part of the spring upper support is provided with an inserting part matched with the inserting hole, and the inserting parts are inserted into the inserting hole.
As a preferable technical scheme, the outer surface of each hanger rod seat is provided with an annular groove for storing lubricating oil and increasing lubrication.
As a preferred technical scheme, a plurality of reinforcing ribs are arranged on the outer surface of the damping sleeve, and each reinforcing rib extends along the axial direction of the damping sleeve.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the vibration damper for the pulsator washing machine comprises a suspension rod, a spring upper support, a spring lower support and a suspension rod seat, wherein in the pulsator washing machine, four vibration dampers are uniformly arranged at the outer side of a water accumulation cylinder of the washing machine, the bottom of the water accumulation cylinder of the washing machine is suspended on the spring upper support in the vibration dampers, the suspension rod seat is suspended at the upper end of a washing machine box body, and a motor clutch and a whole water accumulation cylinder assembly of the washing machine are suspended in the washing machine box body through the four vibration dampers in the whole washing machine, so that the vibration damper has the functions of loading, balancing, noise reduction and vibration reduction for the operation of the washing machine.
Because the damping device comprises a suspension rod, a spring lower support, a damping sleeve, a damping spring, a spring upper support and a suspension rod seat, the inner surface of the damping sleeve is provided with a plurality of raised friction stripes, each friction stripe and the outer surface of the damping spring are in reasonable interference fit, and no matter the damping spring is pressed in or ejected out of the damping sleeve, a certain friction force exists between the damping spring and the friction stripe on the inner surface of the damping sleeve, so that the resonance in the working process of the washing machine is buffered and absorbed, and the vibration of the washing machine in the working process is greatly reduced; meanwhile, compared with the matching between the piston and the inner wall of the sleeve in the prior art, the raised friction stripes on the inner surface of the middle damping sleeve of the damping sleeve pipe can play a better role in heat dissipation and noise reduction, thereby avoiding the damage to the damping device caused by poor heat dissipation and prolonging the service life of the whole damping device; moreover, also there is certain friction between jib and the spring pop-up, and the friction stripe on the supplementary damping sleeve internal surface is cushioned, thereby has improved the utility model discloses a shock attenuation effect.
Because be equipped with the strengthening rib on damping sleeve's the surface the utility model discloses in, bellied strengthening rib on the damping sleeve surface, the effectual intensity that improves damping sleeve has ensured that damping spring is when impressing or popping out damping sleeve in the vibration damper use, and damping sleeve can not produce axial deformation.
Because the up end that holds in the palm under the spring is provided with a location step the utility model discloses in, the external diameter of location step is identical with damping spring's internal diameter, and the location step inserts in the seat circle that corresponds the damping spring bottom to carry out radial ascending spacing to damping spring, guaranteed in the damping device use, any radial ascending skew can not appear in damping spring, has improved damping device's stability.
Because damping sleeve's upper end all is equipped with a spliced eye, the tip that the spring held in the palm is equipped with the grafting portion with spliced eye looks adaptation the utility model discloses in, the diameter of spliced eye and the external diameter looks adaptation of grafting portion, grafting portion are used for fixing a position damping sleeve, insert the grafting portion in the back, ensured damping device in the use, any ascending skew can not take place for damping sleeve to damping device's stability has been improved.
Because be equipped with on the surface of davit seat and be used for storing lubricating oil and increase lubricated annular groove the utility model discloses in, washing machine is at the during operation, the sphere of davit seat can contact and have the friction phenomenon with the washing machine box, set up and to save certain lubricating oil on the annular groove that sets up on the davit seat sphere, lubricate the contact surface of davit seat and washing machine box, reduced the wearing and tearing between davit seat and the washing machine box holding surface, and reduced the noise that its friction produced, prolonged damping device's life.
Because damping spring's one end is supported and is leaned on the lower extreme that holds in the palm on damping sleeve's upper end or spring the utility model discloses in, if damping sleeve upper end is for sealing the setting, then damping spring supports and leans on the internal flat surface in damping sleeve upper end, if damping sleeve's upper end is the opening end, then damping spring supports and leans on the lower tip that holds in the palm on the spring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
fig. 4 is a perspective view of the present invention.
Wherein: 1. a boom; 2. the spring is supported; 3. a spring lower support; 4. a damping sleeve; 5. a damping spring; 6. rubbing the stripes; 7. reinforcing ribs; 8. a boom base; 9. an annular groove; 10. positioning a step; 11. a first stopper; 12. a second limiting block; 13. inserting holes; 14. a plug-in part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, the vibration damping device for the pulsator washing machine includes a suspension rod 2, a suspension rod seat 8 is installed at the upper end of the suspension rod 2, a lower spring support 3 is installed at the lower end of the suspension rod 2, a upper spring support 2 is installed on the suspension rod 2 in a sliding manner, the upper spring support 2 is arranged between the suspension rod seat 8 and the lower spring support 3, a damping sleeve 4 is fixedly installed at the lower end of the upper spring support 2, the damping sleeve 4 is provided with a set of damping springs 5 installed on the suspension rod 2, one end of each damping spring 5 is abutted against the upper end of the damping sleeve 4 or the lower end of the upper spring support 2, the lower end of the damping sleeve 4 is open, the other end of each damping spring 5 extends out of the damping sleeve 4 and is abutted against the lower spring support 3, the inner surface of the damping sleeve 4 is a friction surface, and the damping spring 5 is in interference fit.
The friction surface of the damping sleeve 4 is provided with a plurality of friction stripes 6, each friction stripe 6 extends along the axial direction of the damping sleeve 4, in the utility model, the friction stripe 6 raised on the inner surface of the damping sleeve 4 and the outer surface of the damping spring 5 are in reasonable interference fit, the spring lower support 3 presses the damping spring 5 into the damping sleeve 4, or the damping spring 5 pops out of the damping sleeve 4, the friction is generated between the damping spring 5 and the friction stripe 6, the resonance generated during the work of the washing machine is buffered and absorbed, thereby the vibration of the washing machine is reduced; meanwhile, the friction stripes 6 have the functions of heat dissipation and noise reduction, so that the noise of the washing machine during working is reduced, and the service life of the whole vibration damper is prolonged; the raised reinforcing ribs 7 on the outer surface of the damping sleeve 4 enhance the strength of the damping sleeve 4, so that the damping sleeve 4 cannot deform axially.
The up end that holds in the palm 3 under the spring is provided with the location step 10 that is used for preventing damping spring 5 from taking place radial skew the utility model discloses in, location step 10 carries out radial ascending location to damping spring 5, makes damping spring 5 can not take place radial ascending skew, has improved damping device's stability.
The lower end part of the suspender 2 is provided with a first limit block 11 for supporting the spring lower support 3, and the upper end part of the suspender 2 is provided with a second limit block 12 for fixing the suspender seat 8.
The outer surface of the hanger rod seat 8 is provided with an annular groove 9 for storing lubricating oil and increasing lubrication.
The outer surface of the damping sleeve 4 is provided with a plurality of reinforcing ribs 7, and each reinforcing rib 7 extends along the axial direction of the damping sleeve 4.
To sum up, the utility model provides a vibration damper for rotary drum washing machine adopts damping spring 5 and damping sleeve 4 to rub with interference fit's mode, plays buffering and absorbing effect to improve vibration damper's heat dissipation noise reduction effect and stability, and prolonged whole vibration damper's life.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Vibration damper for rotary drum washing machine, its characterized in that, including a jib, the jib seat is installed to the upper end of jib, hold in the palm under the spring is installed to the lower extreme of jib, slidable mounting has the spring to hold in the palm on the jib, the spring hold in the palm set up in between jib seat and spring hold in the palm down, the lower extreme fixed mounting that the spring held in the palm has the damping sleeve pipe, the damping sleeve pipe is provided with one set and locates damping spring on the jib, damping spring's one end support lean on in the lower extreme that the damping sleeve pipe's upper end or spring held in the palm on, the lower extreme of damping sleeve pipe is uncovered setting, damping spring's the other end stretches out damping sleeve pipe and support lean on in hold in the palm under the spring, damping sleeve pipe's internal surface is the friction surface, the friction surface with be interference fit between the damping spring.
2. The vibration damper for a pulsator washing machine as claimed in claim 1, wherein a plurality of friction stripes are provided on the friction surface of the damping sleeve, each of the friction stripes extending in an axial direction of the damping sleeve.
3. The vibration damper for a pulsator washing machine as claimed in claim 1, wherein a positioning step for preventing the vibration damper from being radially offset is provided on an upper end surface of the spring lower holder.
4. The vibration damper for the pulsator washing machine as claimed in claim 1, wherein a first stopper for holding the lower holder of the spring is provided at a lower end of the suspension lever, and a second stopper for fixing the suspension lever seat is provided at an upper end of the suspension lever.
5. The vibration damper of claim 1, wherein the damping sleeve has an insertion hole at its upper end, and the spring support has an insertion part at its end adapted to the insertion hole, and the insertion parts are inserted into the insertion hole.
6. The vibration damper for the pulsator washing machine as claimed in claim 1, wherein the outer surface of the hanger bar seat is provided with an annular groove for storing lubricating oil for increasing lubrication.
7. The vibration damper for a pulsator washing machine as claimed in claim 1, wherein a plurality of reinforcing ribs are provided on an outer surface of the damping bushing, each of the reinforcing ribs extending in an axial direction of the damping bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725666.7U CN214300817U (en) | 2020-11-23 | 2020-11-23 | Vibration damper for pulsator washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725666.7U CN214300817U (en) | 2020-11-23 | 2020-11-23 | Vibration damper for pulsator washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214300817U true CN214300817U (en) | 2021-09-28 |
Family
ID=77843312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022725666.7U Active CN214300817U (en) | 2020-11-23 | 2020-11-23 | Vibration damper for pulsator washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214300817U (en) |
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2020
- 2020-11-23 CN CN202022725666.7U patent/CN214300817U/en active Active
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