CN111156282A - Vibration damping component for washing machine - Google Patents
Vibration damping component for washing machine Download PDFInfo
- Publication number
- CN111156282A CN111156282A CN202010072365.0A CN202010072365A CN111156282A CN 111156282 A CN111156282 A CN 111156282A CN 202010072365 A CN202010072365 A CN 202010072365A CN 111156282 A CN111156282 A CN 111156282A
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- CN
- China
- Prior art keywords
- sleeve
- piston rod
- washing machine
- vibration damping
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides a vibration damping assembly for a washing machine, which comprises a piston rod and a sleeve, wherein the upper end of the vibration damping assembly is provided with an upper spring seat, the open mouth at the upper end of the sleeve is fixedly provided with a lower spring seat, a load spring is arranged between the upper spring seat and the lower spring seat, the load spring is sleeved on the piston rod, the lower end of the piston rod penetrates through the lower spring seat and is slidably arranged in the sleeve, a sliding piston is fixedly arranged on the piston rod positioned in the sleeve, the circumferential surface of the sliding piston is provided with a friction element, the bottom end of the sleeve is fixedly provided with a sealing plug, the sliding piston is arranged in the sleeve and forms an upper cavity with the lower spring seat, a lower cavity is formed between the sliding piston and the sealing plug, the sliding piston is provided with at least one flow guide. The invention can better meet the requirements of different speeds, different amplitudes and different frequencies, such as low speed, high speed and the like during the starting and normal operation of the washing machine, greatly improves the vibration reduction effect and greatly reduces the operation noise.
Description
Technical Field
The invention relates to the technical field of washing machine accessories, in particular to a damping assembly for a washing machine.
Background
At present, vibration reduction components used for drum washing machines at home and abroad are mainly of a single friction type or a hydraulic vibration reducer type at the bottom, a suspension spring is used for bearing load at the top, and vibration reduction components of the pulsator washing machine are also of two types, wherein one type is a pure friction damping type vibration reduction device for a small-capacity washing machine, and the other type is a vibration reduction device combining friction and air damping. The vibration damping device for the friction damping and the air damping is composed of a plastic guide sleeve and a rubber piston which are installed on a piston rod, and vibration damping of the pulsator washing machine is achieved through friction between the plastic guide sleeve and the piston rod and air damping generated when the rubber piston slides. The vibration reduction assemblies of the two washing machines are integrated, the load mode is concentrated on the top of the washing machine, so that the gravity center of a stress point is close to the upper part, the vibration and noise of the washing machine are relatively high during working, and the inner barrel shakes relatively greatly.
Disclosure of Invention
The invention provides a vibration damping assembly for a washing machine, which can better meet the requirements of different speeds, different amplitudes and different frequencies, such as low speed, high speed and the like during starting and normal operation of the washing machine, greatly improve the vibration damping effect and greatly reduce the operation noise.
The technical scheme of the invention is realized as follows: damping subassembly for washing machine, including piston rod and sleeve, the upper end of piston rod is equipped with the spring seat of honour, telescopic uncovered department fixed mounting in upper end has the spring seat of honour, be equipped with load spring between spring seat of honour and the spring seat of honour, the load spring cover is located on the piston rod, the lower extreme of piston rod passes the spring seat of honour and slidable mounting in the sleeve, be located in the sleeve fixed mounting has the slip piston on the piston rod, install friction element on the global of slip piston, telescopic bottom fixed mounting has the closure plug, form the upper portion cavity between slip piston and the spring seat of honour, slip piston and closure plug between form the lower part cavity, be equipped with at least one water conservancy diversion passageway on the slip piston, the water conservancy diversion passageway communicates respectively upper portion cavity and lower part cavity.
As a preferred technical scheme, the upper end part of the piston rod is provided with a top connecting component connected with an outer barrel of the washing machine.
As a preferred technical scheme, the top connecting assembly comprises a top inner damping block, a top connecting piece, a top outer damping block and a top locking nut which are sleeved on the piston rod from bottom to top.
As an optimal technical scheme, a top inner gasket is sleeved on a piston rod between the spring upper seat and the top inner damping block, and a top outer gasket is sleeved on a piston rod between the top outer damping block and the top locking nut.
As a preferred technical scheme, the bottom end of the sleeve is provided with a bottom connecting component connected with the bottom platform of the washing machine.
As a preferred technical scheme, the bottom connecting assembly comprises a bolt sleeved on the sealing plug, the bolt extends out of the sleeve, and a bottom inner damping block, a bottom connecting piece, a bottom outer damping block and a bottom locking nut are sequentially sleeved on the bolt from top to bottom.
As a preferred technical scheme, a bottom inner gasket is sleeved on a bolt between the sealing plug and the bottom inner damping block, and a bottom outer gasket is sleeved on a bolt between the bottom outer damping block and the bottom locking nut.
As a preferable technical solution, the friction element is a friction ring, an annular groove adapted to the friction ring is formed on the circumferential surface of the sliding piston, and the friction ring is disposed in the annular groove.
As a preferred technical solution, the friction elements are a plurality of friction plates, the circumferential surface of the sliding piston is provided with a plurality of grooves adapted to the friction plates, and the friction plates are arranged in the grooves.
As a preferred technical scheme, the top inner damping block, the top outer damping block, the bottom inner damping block and the bottom outer damping block are all damping rubber blocks.
By adopting the technical scheme, the invention has the beneficial effects that: because the lower end of a piston rod of the vibration damping component for the washing machine is arranged in a sleeve in a sliding way, a sliding piston is fixedly arranged on the piston rod, a friction element is arranged on the circumferential surface of the sliding piston, a sealing plug is fixedly arranged at the bottom end of the sleeve, at least one flow guide channel is arranged on the sliding piston and is respectively communicated with an upper cavity and a lower cavity, when the sliding piston moves up and down, the air in the sleeve convects up and down through the flow guide hole on the sliding piston, meanwhile, the flow velocity of the air in the piston rod assembly can be controlled by setting the size of the flow guide hole during the production of the piston rod assembly so as to adjust the dynamic damping force of the shock absorber, and the higher the vibration amplitude and frequency, the higher the relative damping force is, so that the requirements of different speeds, different amplitudes and different frequencies, such as low speed when the washing machine is started and high speed when the washing machine is normally operated, can be better met.
The sleeve of the vibration reduction assembly is sealed by the sealing plug and the lower spring seat, the friction element is fixed on the sliding piston, the sliding piston can move up and down under the action of the piston rod when vibration is generated in the operation of the equipment, and the friction force between the friction element and the sleeve plays a role in slowing down the vibration and avoiding resonance, so that the vibration of the machine and the equipment is reduced.
The load spring is a load spring and is used for supporting the weight of an object and for damping, and when the load is changed, the length of the spring is changed to adapt to different loads.
In addition, the invention is different from the installation position of the vibration reduction assembly of the existing washing machine, the load and the vibration reduction of the invention are integrally installed at the bottom of the washing machine, and the load of the vibration reduction assembly of the existing washing machine is installed at the top of the washing machine through a suspension spring.
The damping component is simple to manufacture, low in cost and wide in application range, and can be used for various washing machines, dewaterers, vegetable washers and the like.
The upper end of the piston rod is provided with a top connecting component connected with the outer barrel of the washing machine. The bottom end of the sleeve is provided with a bottom connecting component connected with the bottom platform of the washing machine. The angle and the connection mode of the shock absorber can be changed through the top connecting piece and the bottom connecting piece which are different in shape, so that the installation and use requirements of various machines are met.
The top connecting assembly comprises a top inner damping block, a top connecting piece, a top outer damping block and a top locking nut which are sleeved on the piston rod from bottom to top. The bottom connecting assembly comprises a bolt sleeved on the sealing plug, the bolt extends out of the sleeve, and the bolt is sequentially sleeved with a bottom inner damping block, a bottom connecting piece, a bottom outer damping block and a bottom locking nut from top to bottom. Top coupling assembling and bottom coupling assembling are an solitary shock attenuation unit for connect the outside transmission vibrations of position and noise about reducing, improve the stability of complete machine equipment, guarantee the fastness of damper through lock nut, it is not hard up to prevent to connect the position in the use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and 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 creative efforts.
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 of FIG. 1 at B
FIG. 4 is an enlarged view of the structure of FIG. 1 at C
Wherein: 1. a piston rod; 2. a sleeve; 3. a spring upper seat; 4. a spring lower seat; 5. a load spring; 6. a sliding piston; 7. a friction element; 8. sealing the plug; 9. an upper chamber; 10. a lower chamber; 11. a flow guide channel; 12. a top inner damping block; 13. a top connector; 14. a top outer shock block; 15. a top locking nut; 16. a top inner gasket; 17. a top outer pad; 18. a bolt; 19. a bottom inner damping block; 20. a bottom outer shock block; 21. a bottom lock nut; 22. a bottom inner gasket; 23. a bottom outer gasket; 24. a bottom connector.
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.
As shown in fig. 1 and 2 together, the vibration damping assembly for the washing machine includes a piston rod 1 and a sleeve 2, an upper spring seat 3 is disposed at an upper end of the piston rod 1, a lower spring seat 4 is fixedly mounted at an upper opening of the sleeve 2, a load spring 5 is disposed between the upper spring seat 3 and the lower spring seat 4, the load spring 5 is sleeved on the piston rod 1, a lower end of the piston rod 1 passes through the lower spring seat 4 and is slidably mounted in the sleeve 2, a sliding piston 6 is fixedly mounted on the piston rod 1 located in the sleeve 2, a friction element 7 is mounted on a circumferential surface of the sliding piston 6, lubricating grease is coated on an inner wall of the sleeve 2, a sealing plug 8 is fixedly mounted at a bottom end of the sleeve 2, an upper chamber 9 is formed between the sliding piston 6 and the lower spring seat 4, a lower chamber 10 is formed between the sliding piston 6 and the sealing plug 8, at least one flow guide channel 11 is disposed on the sliding piston 6.
In this embodiment, the upper end of the piston rod 1 is provided with a top connection assembly connected with the outer tub of the washing machine. The bottom end of the sleeve 2 is provided with a bottom connecting component connected with the bottom platform of the washing machine.
As shown in fig. 3, the top connection assembly includes a top inner damping block 12, a top connection member 13, a top outer damping block 14, and a top lock nut 15, which are sleeved on the piston rod 1 from bottom to top. A top inner gasket 16 is sleeved on the piston rod 1 between the spring upper seat 3 and the top inner damping block 12, and a top outer gasket 17 is sleeved on the piston rod 1 between the top outer damping block 14 and the top locking nut 15.
As shown in fig. 4, the bottom connecting assembly includes a bolt 18 sleeved on the sealing plug 8, the bolt 18 extends out of the sleeve 2, and the bolt 18 is sleeved with a bottom inner damping block 19, a bottom connecting member 24, a bottom outer damping block 20 and a bottom locking nut 21 in sequence from top to bottom. A bottom inner gasket 22 is sleeved on the bolt 18 between the sealing plug 8 and the bottom inner damping block 19, and a bottom outer gasket 23 is sleeved on the bolt 18 between the bottom outer damping block 20 and the bottom locking nut 21. The top inner damping block 12, the top outer damping block 14, the bottom inner damping block 19 and the bottom outer damping block 20 are all damping rubber blocks.
In this embodiment, the friction element 7 is a friction ring, the circumferential surface of the sliding piston 6 is provided with an annular groove adapted to the friction ring, and the friction ring is disposed in the annular groove. Or the friction elements 7 are a plurality of friction plates, the circumferential surface of the sliding piston 6 is provided with a plurality of grooves matched with the friction plates, and the friction plates are arranged in the grooves.
When the sliding piston 6 moves up and down, air in the sleeve 2 flows up and down in a convection mode through the flow guide holes in the sliding piston 6, and meanwhile, the flow velocity of the air in the shock absorber can be controlled by setting the size of the flow guide channel 11 when the shock absorption assembly is produced, so that the dynamic damping force of the shock absorber can be adjusted, the relative damping force can be increased when the vibration amplitude and the frequency are higher, and the requirements of low speed, high speed and the like during normal operation of the washing machine on different speeds, different amplitudes and different frequencies can be better met. In addition, the invention is different from the installation position of the vibration reduction assembly of the existing washing machine, the load and the vibration reduction of the invention are integrally installed at the bottom of the washing machine, and the load of the vibration reduction assembly of the existing washing machine is installed at the top of the washing machine through a suspension spring.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The vibration damping component for the washing machine is characterized by comprising a piston rod and a sleeve, wherein the upper end of the piston rod is provided with a spring upper seat, a lower spring seat is fixedly arranged at an open position at the upper end of the sleeve, a load spring is arranged between the upper spring seat and the lower spring seat, the load spring is sleeved on the piston rod, the lower end of the piston rod penetrates through the lower spring seat and is slidably installed in the sleeve, a sliding piston is fixedly installed on the piston rod in the sleeve, the circumferential surface of the sliding piston is provided with a friction element, the bottom end of the sleeve is fixedly provided with a sealing plug, an upper chamber is formed between the sliding piston and the lower spring seat, a lower chamber is formed between the sliding piston and the sealing plug, the sliding piston is provided with at least one flow guide channel, and the flow guide channel is communicated with the upper cavity and the lower cavity respectively.
2. The vibration damping module of claim 1, wherein the piston rod has a top connecting member at its upper end for connecting to the outer tub of the washing machine.
3. The vibration damping module for a washing machine as claimed in claim 2, wherein said top connecting member comprises a top inner damping block, a top connecting member, a top outer damping block and a top lock nut which are fitted to said piston rod from the bottom up.
4. The vibration damping assembly for a washing machine as claimed in claim 3, wherein a top inner spacer is fitted over the piston rod between the spring upper seat and the top inner damping block, and a top outer spacer is fitted over the piston rod between the top outer damping block and the top lock nut.
5. The vibration damping module for a washing machine as claimed in claim 1, wherein the bottom end of the sleeve is provided with a bottom coupling member coupled to a bottom plate of the washing machine.
6. The vibration damping assembly according to claim 5, wherein the bottom connecting assembly comprises a bolt sleeved on the sealing plug, the bolt extends out of the sleeve, and a bottom inner damping block, a bottom connecting piece, a bottom outer damping block and a bottom locking nut are sequentially sleeved on the bolt from top to bottom.
7. The vibration damping assembly for a washing machine as claimed in claim 6, wherein the bolt between the sealing plug and the bottom inner damping block is sleeved with a bottom inner gasket, and the bolt between the bottom outer damping block and the bottom lock nut is sleeved with a bottom outer gasket.
8. The vibration damping module according to claim 1, wherein the friction member is a friction ring, and the sliding piston is provided at a circumferential surface thereof with an annular groove adapted to the friction ring, and the friction ring is disposed in the annular groove.
9. The vibration damping module according to claim 1, wherein the friction member is a plurality of friction plates, and the sliding piston is provided at a circumferential surface thereof with a plurality of grooves adapted to the friction plates, the friction plates being disposed in the grooves.
10. A vibration damping module for a washing machine as claimed in any one of claims 1 to 9, wherein the top inner, outer, inner and outer vibration damping blocks are vibration damping rubber blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072365.0A CN111156282A (en) | 2020-01-21 | 2020-01-21 | Vibration damping component for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010072365.0A CN111156282A (en) | 2020-01-21 | 2020-01-21 | Vibration damping component for washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156282A true CN111156282A (en) | 2020-05-15 |
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ID=70565318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010072365.0A Pending CN111156282A (en) | 2020-01-21 | 2020-01-21 | Vibration damping component for washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111156282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644801A (en) * | 2020-09-21 | 2021-04-13 | 中山市哈工朗德智能科技有限公司 | Novel horizontal sealing guide device |
-
2020
- 2020-01-21 CN CN202010072365.0A patent/CN111156282A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644801A (en) * | 2020-09-21 | 2021-04-13 | 中山市哈工朗德智能科技有限公司 | Novel horizontal sealing guide device |
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