CN210596682U - Variable damping type vibration damper for pulsator washing machine - Google Patents
Variable damping type vibration damper for pulsator washing machine Download PDFInfo
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- CN210596682U CN210596682U CN201920399959.5U CN201920399959U CN210596682U CN 210596682 U CN210596682 U CN 210596682U CN 201920399959 U CN201920399959 U CN 201920399959U CN 210596682 U CN210596682 U CN 210596682U
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Abstract
The utility model provides a variable damping formula vibration damper of rotary drum washing machine, include: the suspension rod comprises a suspension rod, wherein one end of the suspension rod is provided with a suspension rod seat, the other end of the suspension rod is provided with a limiting part, the suspension rod is provided with a guide sleeve and a spring support in a sliding manner, and the guide sleeve is arranged between the limiting part and the guide sleeve; a damping spring is arranged between the spring support and the guide sleeve, and damping is carried out by the damping spring; the guide sleeve is provided with a sleeve, one end of the sleeve is provided with an opening, the spring support is sleeved with a damping ring which rubs with the inner wall of the sleeve, and the spring support drives the damping ring to rub with the sleeve when sliding, so that the damping effect is improved by friction damping; the sleeve is including installing the first sleeve section of thick bamboo portion on the uide bushing, still including being connected to the second sleeve section of thick bamboo portion on the first sleeve section of thick bamboo portion, and the bore of second sleeve section of thick bamboo portion is greater than the bore of first sleeve section of thick bamboo portion, and when the spring held in the palm is gone into first sleeve section of thick bamboo portion by second sleeve section of thick bamboo portion slip, improved frictional force, further strengthened damping effect and washing machine's result of use.
Description
Technical Field
The utility model belongs to the technical field of the washing machine technique and specifically relates to a variable damping formula vibration damper of rotary drum washing machine is related to.
Background
The bottom of the barrel of the impeller washing machine is provided with an impeller, and water flow in the barrel forms a right-handed and left-handed alternating vortex under the driving of the impeller so as to drive fabrics to rotate and roll, thereby cleaning clothes. In the working process, due to the effect of the load of the washing articles, the pulsator washing machine can generate resonance in the washing process, on one hand, the noise in the working process is increased, on the other hand, the pulsator washing machine can be damaged, and the vibration damping assembly is used for bearing the load of the whole washing machine and absorbing vibration and damping vibration.
At present, vibration dampers used for pulsator washing machines at home and abroad are roughly divided into two types, one is a pure friction damping type vibration damper for small-capacity washing machines, and the other is a vibration damper combining friction and air damping. However, the vibration reduction and energy absorption processes of the structures are constant, in the operation process, when the washing machine is influenced by factors such as clothes winding and the like, the vibration applied to the washing machine is increased steeply, the vibration reduction amplitude of the vibration reduction spring is enabled to be changed suddenly, and when the constant vibration reduction process is not matched with the amplitude of the vibration reduction spring, the vibration reduction process is extremely uneven, the vibration reduction effect of the vibration reduction assembly is influenced, and the use effect of the washing machine is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a variable damping formula vibration damper of rotary drum washing machine has promoted vibration damper's damping capacity, has improved washing machine's result of use.
The technical scheme of the utility model is realized like this:
variable damping formula vibration damper of rotary drum washing machine includes: the suspension rod comprises a suspension rod, wherein a suspension rod seat is installed at one end of the suspension rod, a limiting part is arranged at the other end of the suspension rod, a guide sleeve and a spring support are installed on the suspension rod in a sliding mode, the guide sleeve is arranged between the suspension rod seat and the limiting part, and the spring support is arranged between the limiting part and the guide sleeve;
a damping spring is arranged between the spring support and the guide sleeve and sleeved on the hanging rod;
a sleeve is fixedly arranged on the guide sleeve far away from the hanging rod seat, one end of the sleeve is provided with an opening, the other end of the sleeve is provided with a seal, the spring support and the damping spring are both arranged in the sleeve, and the spring support is sleeved with a damping ring which rubs with the inner wall of the sleeve;
the sleeve comprises a first sleeve part arranged on the guide sleeve and a second sleeve part connected to the first sleeve part, the caliber of the second sleeve part is larger than that of the first sleeve part, and a closing part used for the spring support to slide in a transition mode is connected between the first sleeve part and the second sleeve part.
As an improvement mode, an annular mounting groove used for restraining the damping ring is arranged on the peripheral surface of the spring support.
As a refinement, at least one grease storage groove for storing lubricating grease is arranged on the circumferential surface of the spring support.
As an improvement mode, the number of the grease storage grooves is two, and the two grease storage grooves are respectively positioned on two sides of the annular mounting groove.
As a modification, the other end of the sleeve is sealed by a sealing plug.
As an improvement mode, a first air damping cavity is arranged in the sealing plug, and a plurality of vent holes communicated with the first air damping cavity and the inner part of the sleeve are formed in the spring support.
As an improvement mode, the second sleeve part is further connected with a third sleeve part, and a second air damping cavity communicated with the first air damping cavity is arranged in the third sleeve part;
and the third sleeve part is provided with a limiting convex edge for limiting the spring support to extend into the second air damping cavity.
As an improvement mode, the lower end of the guide sleeve is provided with a spring mounting groove for restraining the damping spring.
As an improvement mode, the damping ring is formed by winding damping sheets wrapped on the annular mounting groove.
As an improved mode, the damping ring is an elastic damping ring with openings at two ends, and the damping ring is sleeved on the annular mounting groove.
By adopting the technical scheme, the beneficial effects of the utility model are that:
variable damping formula vibration damper of rotary drum washing machine includes: the suspension rod comprises a suspension rod, wherein a suspension rod seat is installed at one end of the suspension rod, a limiting part is arranged at the other end of the suspension rod, a guide sleeve and a spring support are installed on the suspension rod in a sliding mode, the guide sleeve is arranged between the suspension rod seat and the limiting part, and the spring support is arranged between the limiting part and the guide sleeve; a damping spring is arranged between the spring support and the guide sleeve, and the damping spring is sleeved on the suspender and is used for damping vibration by virtue of the damping spring; a sleeve is fixedly arranged on the guide sleeve far away from the hanging rod seat, an opening is formed in one end of the sleeve, a seal is formed in the other end of the sleeve, the spring support and the vibration reduction spring are both arranged in the sleeve, a damping ring which rubs with the inner wall of the sleeve is sleeved on the spring support, and the spring support drives the damping ring to rub with the sleeve when sliding to form friction damping; the sleeve is including installing in first sleeve section of thick bamboo on the uide bushing still including connect in second sleeve section of thick bamboo on the first sleeve section of thick bamboo, the bore of second sleeve section of thick bamboo is greater than the bore of first sleeve section of thick bamboo, be connected with between first sleeve section of thick bamboo and the second sleeve section of thick bamboo and be used for the gliding receipts mouth portion of spring support transition, when the spring support slides into first sleeve section of thick bamboo by second sleeve section of thick bamboo, improved frictional force, further strengthened damping effect and washing machine's result of use.
Because the circumferential surface of the spring support is provided with the annular mounting groove for restraining the damping ring, the damping ring is firmly mounted and installed, and the use reliability is ensured.
Because the peripheral face of the spring support is provided with at least one grease storage groove for storing lubricating grease, the damping ring is lubricated by the lubricating grease stored in the grease storage groove when sliding, and the damping process is smoother.
Because the grease storage grooves are two, the two grease storage grooves are respectively positioned on two sides of the annular mounting groove, the damping ring is lubricated by the grease storage grooves on two sides of the annular mounting groove, the damping ring can slide smoothly along two directions, and the damping effect is further improved.
Because the other end of the sleeve is sealed through a sealing plug, the split structure is more convenient and quicker to install.
Because the sealing plug is internally provided with the first air damping cavity, the spring support is provided with a plurality of air holes for communicating the first air damping cavity with the interior of the sleeve, the spring support compresses air in the sleeve during vibration reduction, and the air enters the first air damping cavity through the air holes after being compressed, so that air damping is formed, the energy-absorbing and vibration-reducing effects are achieved, and the vibration-reducing effect is further improved.
The second sleeve part is also connected with a third sleeve part, and a second air damping cavity communicated with the first air damping cavity is arranged in the third sleeve part; the third sleeve part is provided with a limiting convex edge for limiting the spring support to extend into the second air damping cavity, air pressure in the second air damping cavity balance sliding cavity is set, air damping is smoother, and the damping effect is improved.
Because the lower extreme of uide bushing is provided with the spring mounting recess that is used for retraining damping spring, guarantees that damping force of damping spring openly acts on the uide bushing, further guarantees the damping effect.
Because the damping ring is formed by rolling the damping sheet wrapped on the annular mounting groove, the installation is convenient.
Because the damping ring is the elastic damping ring with openings at two ends, the damping ring is sleeved on the annular mounting groove, and when vibration damping slides, the damping ring is always positioned in the annular mounting groove, so that the use effect is improved.
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 diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural view of the guide sleeve of the present invention;
fig. 4 is a schematic structural view of the spring holder of the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural view of the damping ring of the present invention;
FIG. 7 is an expanded view of FIG. 6;
FIG. 8 is a schematic structural view of another embodiment of the damping ring of the present invention;
wherein: 1-a suspender, 2-a suspender seat, 3-a limiting part, 4-a guide sleeve, 5-a spring support, 6-a damping spring, 7-a sleeve, 8-a sliding cavity, 9-a damping ring, 10-an annular mounting groove, 11-an oil storage tank, 12-a sealing plug, 13-a first air damping cavity, 14-a vent hole, 15-a spring mounting groove, 16-lubricating oil, 17-a first sleeve part, 18-a second sleeve part, 19-a closing part, 20-a third sleeve part, 21-a second air damping cavity and 22-a limiting convex edge.
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.
Example one
As shown in fig. 1, the variable damping type vibration damper of the pulsator washing machine includes: the suspension rod comprises a suspension rod 1, a suspension rod seat 2 is installed at one end of the suspension rod 1, a limiting portion 3 is arranged at the other end of the suspension rod 1, a guide sleeve 4 and a spring support 5 are installed on the suspension rod 1 in a sliding mode, the guide sleeve 4 is arranged between the suspension rod seat 2 and the limiting portion 3, and the spring support 5 is arranged between the limiting portion 3 and the guide sleeve 4.
A damping spring 6 is arranged between the spring support 5 and the guide sleeve 4, and the damping spring 6 is sleeved on the suspender 1.
Keep away from 2 fixed mounting of lifting rod seat on uide bushing 4 and have a sleeve 7, the one end opening setting of sleeve 7, the other end of sleeve 7 is for sealing the setting, and spring holder 5 and damping spring 6 all set up in sleeve 7, set up in the sleeve 7 to be used for spring holder 5 gliding slip chamber 8, and the cover is equipped with one on the spring holder 5 and is equipped with one with sleeve 7 inner wall frictional damping ring 9.
As shown in fig. 6 and 7, the damping ring 9 can be made by wrapping the damping sheet on the annular mounting groove 10, and is simple to manufacture and mount.
As shown in fig. 8, the damping ring 9 may also be an elastic damping ring 9 with two open ends, and the damping ring 9 is directly sleeved on the annular mounting groove 10.
The damping ring 9 is preferably made of polyurethane, which has the advantages of high wear resistance and high fatigue resistance, and the friction with the sleeve 7 is soft friction, so that the noise caused by friction damping is greatly reduced.
As shown in fig. 1, the sleeve includes a first sleeve part 17 mounted on the guide sleeve, and further includes a second sleeve part 18 connected to the first sleeve part 17, the diameter of the second sleeve part 18 is larger than that of the first sleeve part 17, a closing part 19 for the spring support 5 to slide transitionally is connected between the first sleeve part 17 and the second sleeve part 18, when the spring support slides gradually into the first sleeve part 17 from the second sleeve part 18, the pressure from the sleeve 7 borne by the damping ring 9 is increased, thereby increasing the friction force and further improving the damping effect.
In order to ensure that the damping ring 9 does not move axially, the circumferential surface of the spring support 5 is provided with an annular mounting groove 10 for restraining the damping ring 9. Meanwhile, in order to prolong the service life of the damping ring 9, two grease storage grooves 11 for storing lubricating grease 16 are further arranged on the circumferential surface of the spring support 5, and the two grease storage grooves 11 are respectively located on two sides of the annular mounting groove 10.
In order to facilitate the assembly the utility model discloses, the other end of sleeve 7 is sealed through a sealed stifled 12, and the sealed equipment of components of a whole that can function independently is convenient.
As shown in fig. 4 and 5, a first air damping cavity 13 is arranged in the sealing plug 12, eight vent holes 14 communicating the first air damping cavity 13 with the interior of the sleeve 7 are arranged on the spring support 5, and the eight vent holes 14 are uniformly distributed along the radial direction of the spring support 5; during damping, the spring support 5 compresses air in the sleeve 7, and the air enters the first air damping cavity 13 through the vent hole 14 after being pressurized to form air damping, so that the damping effect is further improved.
As shown in fig. 3, the lower end of the guide sleeve 4 is provided with a spring mounting groove 15 for restraining the damping spring 6, so as to ensure that the damping force of the damping spring 6 acts on the guide sleeve 4 in a positive manner, and further ensure the damping effect.
Example two
As shown in fig. 2, the present embodiment is different from the first embodiment in that: the second sleeve part 18 is also connected with a third sleeve part 20, and a second air damping cavity 21 communicated with the first air damping cavity is arranged in the third sleeve part 20; install the spacing protruding stupefied 22 that restriction spring holds in the palm 5 and stretch into in the second air damping chamber 21 on the third sleeve portion 20, through setting up second air damping chamber 21, increased the space in damping chamber, when the air carries out the damping in the spring support compression sleeve, guarantee that compressed air passes through the air vent and gets into in the second air damping chamber 21 to pressure in the balance sleeve 7 makes air damping gentler, has further improved the damping effect.
The utility model discloses when using, will the utility model discloses install on washing machine, the outside box of davit seat 2 and washing machine links together, and the inside staving of washing machine is installed on uide bushing 4, uses 4 usually the utility model discloses hang washing machine's interior bucket in washing machine's box. When the inner barrel of the washing machine is unloaded, the guide sleeve 4 plays a role of guiding, the damping ring 9 arranged on the spring support 5 and the second sleeve part 18 only perform first sliding friction, and when the inner barrel of the washing machine is loaded, the damping ring 9 and the second sleeve part 18 generate first sliding friction under the action of the gravity of the inner barrel; along with the rotation of the inner barrel or when the load is increased, the spring support 5 enters the first sleeve part 17, the damping ring 9 and the first sleeve part 17 generate second sliding friction, and after the damping ring 9 enters the first sleeve part 17 with smaller diameter, the acting force between the damping ring 9 and the first sleeve part 17 is larger than the acting force between the damping ring 9 and the second sleeve part 18 because the diameter of the second sleeve part 18 is larger than that of the first sleeve part 17, so that the friction force of the second sliding friction is larger than that of the first sliding friction, the friction damping effect is further improved, and the vibration damping effect of the washing machine is further improved.
In addition, the spring support 5 compresses the air in the sliding cavity 8, the air enters the first air damping cavity 13 through the vent hole 14 after being compressed, and air damping is formed under the compression effect of the vibration reduction spring 6, so that the damping effect is further improved, and the vibration reduction is more stable.
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 (10)
1. Variable damping formula vibration damper of rotary drum washing machine includes: the suspension rod is characterized in that a suspension rod seat is installed at one end of the suspension rod, a limiting part is arranged at the other end of the suspension rod, a guide sleeve and a spring support are installed on the suspension rod in a sliding mode, the guide sleeve is arranged between the suspension rod seat and the limiting part, and the spring support is arranged between the limiting part and the guide sleeve;
a damping spring is arranged between the spring support and the guide sleeve and sleeved on the hanging rod;
a sleeve is fixedly arranged on the guide sleeve far away from the hanging rod seat, one end of the sleeve is provided with an opening, the other end of the sleeve is provided with a seal, the spring support and the damping spring are both arranged in the sleeve, and the spring support is sleeved with a damping ring which rubs with the inner wall of the sleeve;
the sleeve comprises a first sleeve part arranged on the guide sleeve and a second sleeve part connected to the first sleeve part, the caliber of the second sleeve part is larger than that of the first sleeve part, and a closing part used for the spring support to slide in a transition mode is connected between the first sleeve part and the second sleeve part.
2. The variable damping vibration damping device of a pulsator washing machine as claimed in claim 1, wherein an annular mounting groove for restraining the damping ring is provided on a circumferential surface of the spring holder.
3. The variable damping type vibration damper of a pulsator washing machine as claimed in claim 2, wherein at least one grease storage groove for storing grease is provided on a circumferential surface of the spring holder.
4. The variable damping type vibration damper of a pulsator washing machine according to claim 3, wherein there are two grease storage tanks, and the two grease storage tanks are respectively located at both sides of the annular mounting groove.
5. The variable damping vibration damping device of a pulsator washing machine as claimed in claim 1, wherein the other end of the sleeve is sealed by a sealing plug.
6. The variable damping vibration damper of rotary drum washing machine according to claim 5, characterized in that a first air damping chamber is provided in said seal block, and a plurality of vent holes communicating said first air damping chamber and the interior of the sleeve are provided in said spring holder.
7. The variable damping vibration damping device of a pulsator washing machine as claimed in claim 6, wherein a third sleeve part is further connected to the second sleeve part, and a second air damping chamber communicated with the first air damping chamber is provided in the third sleeve part;
and the third sleeve part is provided with a limiting convex edge for limiting the spring support to extend into the second air damping cavity.
8. The variable damping type vibration damping device of a pulsator washing machine as claimed in claim 1, wherein a spring mounting groove for restraining the vibration damping spring is provided at a lower end of the guide bushing.
9. The variable damping vibration damping device of a pulsator washing machine as claimed in claim 2, wherein the damping ring is wound by damping fins wrapped on the annular mounting groove.
10. The variable damping vibration damping device of a pulsator washing machine according to claim 2, wherein the damping ring is an elastic damping ring having both ends opened, and the damping ring is fitted in the annular mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920399959.5U CN210596682U (en) | 2019-03-27 | 2019-03-27 | Variable damping type vibration damper for pulsator washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920399959.5U CN210596682U (en) | 2019-03-27 | 2019-03-27 | Variable damping type vibration damper for pulsator washing machine |
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| Publication Number | Publication Date |
|---|---|
| CN210596682U true CN210596682U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920399959.5U Active CN210596682U (en) | 2019-03-27 | 2019-03-27 | Variable damping type vibration damper for pulsator washing machine |
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| CN (1) | CN210596682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004660A (en) * | 2019-03-27 | 2019-07-12 | 昌邑市永富弹簧有限公司 | Rotary drum washing machine variable damping vibration absorber |
-
2019
- 2019-03-27 CN CN201920399959.5U patent/CN210596682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004660A (en) * | 2019-03-27 | 2019-07-12 | 昌邑市永富弹簧有限公司 | Rotary drum washing machine variable damping vibration absorber |
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