CN111473084A - Frequency valve - Google Patents

Frequency valve Download PDF

Info

Publication number
CN111473084A
CN111473084A CN202010422513.7A CN202010422513A CN111473084A CN 111473084 A CN111473084 A CN 111473084A CN 202010422513 A CN202010422513 A CN 202010422513A CN 111473084 A CN111473084 A CN 111473084A
Authority
CN
China
Prior art keywords
valve
valve body
frequency
control
control chamber
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.)
Granted
Application number
CN202010422513.7A
Other languages
Chinese (zh)
Other versions
CN111473084B (en
Inventor
黄小伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010422513.7A priority Critical patent/CN111473084B/en
Publication of CN111473084A publication Critical patent/CN111473084A/en
Application granted granted Critical
Publication of CN111473084B publication Critical patent/CN111473084B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • 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
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • 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
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • 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
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/066—Variable stiffness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention discloses a frequency valve, which comprises a valve body, wherein the valve body is provided with an inlet, an outlet and a flow channel for communicating the inlet and the outlet, a control cavity is arranged below the flow channel in the valve body, a main valve core is movably arranged in the control cavity, the main valve core moves up and down in the control cavity to adjust the flow between the outlet and the flow channel, a communication hole for communicating the flow channel with the control cavity is formed in the main valve core, a control valve for changing the volume of the control cavity is also arranged at the lower part of the control cavity, and a balance channel communicated with the control cavity is arranged on the valve body. Through the mode, when the up-and-down reciprocating motion frequency of the valve is changed, the main valve core moves up and down to realize the liquid flow regulation effect, the fatigue strength is reduced, and the service life is prolonged.

Description

Frequency valve
Technical Field
The invention relates to the field of valves, in particular to a frequency valve.
Background
Dampers or shock absorbers are well known and widely used in, for example, a variety of vehicles such as automobiles, trucks, buses, and trains. To provide the desired frequency change damping characteristic change. Such frequency valves may be added to or incorporated into known damper configurations to provide for tunable damping characteristics of the shock absorber. On the other hand, such a frequency-selective damper may also be applied in itself in certain applications where a frequency-varying flow rate of fluid flow is required between two (pressure) chambers to also follow the variations.
In patent application cn201680023757.x there is disclosed a frequency varying damping valve and a shock absorber comprising the same, the valve of such construction that when the valve up and down frequency varies, the flow through the valve varies and the damping to the shock absorber varies with frequency.
Disclosure of Invention
The invention mainly solves the technical problem of providing a frequency valve, when the up-and-down reciprocating motion frequency of the valve is changed, the liquid flow regulation effect is realized by the up-and-down movement of a main valve core, and the damping is changed along with the frequency change of a shock absorber.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a frequency valve, includes the valve body, be equipped with import, export and intercommunication runner between them on the valve body, the valve body has the control chamber that is located the runner below, the activity is provided with main valve core in the control chamber, main valve core reciprocates at the control chamber and adjusts the flow between export and the runner, set up the intercommunicating pore that makes runner and control chamber intercommunication on the main valve core, the lower part of control chamber still is equipped with the control valve that changes the control chamber volume, be equipped with the balanced passageway with the control chamber intercommunication on the valve body.
In a preferred embodiment of the invention, the upper side of the main valve element and the valve body are provided with grooves for balancing the port pressure.
In a preferred embodiment of the invention, the groove is positioned at the upper end of the main valve core and the lower section of the valve body, and the shape and the size of the groove are changed to obtain different section pressures of the valve port.
In a preferred embodiment of the invention, the outer side of the main valve core is tightly attached to the inner wall of the valve body, and the main valve core and the valve body form a reciprocating type movable sealing structure.
In a preferred embodiment of the present invention, the inner side of the main valve core is provided with an elastic member connected with the valve body, and the elastic member provides an elastic force for the upward movement of the main valve core.
In a preferred embodiment of the present invention, the balance passage includes a balance hole and a balance chamber opened in the valve body, the balance hole communicates with a lower end of the control chamber, and the balance hole is located at an upper side of the control valve, and the balance chamber is located at an upper side of the balance hole.
In a preferred embodiment of the present invention, the control valve comprises a plurality of elastically deformable valve plates stacked together, two ends of the control valve are fixedly connected to the inner side of the valve body, and a sealing ring for sealing between the control cavity and the valve body is further disposed at the upper end of the control valve.
The invention has the beneficial effects that: when the up-and-down reciprocating frequency of the valve changes, the frequency valve realizes the liquid flow regulation effect by the up-and-down movement of the main valve core, and has the advantages of simple structure, small volume and quick regulation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of a frequency valve according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
the parts in the drawings are numbered as follows: 1. the valve comprises a valve body, 11, an inlet, 12, an outlet, 13, a flow channel, 14, a control cavity, 15, a balance channel, 151, a balance hole, 152, a balance cavity, 16, a boss, 2, a main valve element, 21, a communication hole, 22, a groove wall, 23, a groove, 24, an elastic element, 3, a control valve, 31, a valve sheet, 4 and a sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a frequency valve includes a valve body 1, an inlet 11, an outlet 12 and a flow passage 13 communicating the inlet and the outlet are provided on the valve body, a control chamber 14 located below the flow passage 13 is provided in the valve body 1, a main valve element 2 is movably provided in the control chamber 14, the main valve element 2 moves up and down in the control chamber to adjust a flow between the outlet 12 and the flow passage 13, a communication hole 21 communicating the flow passage 13 and the control chamber 14 is provided on the main valve element 2, a control valve 3 changing a volume of the control chamber 14 is further provided on a lower portion of the control chamber 14, and a balance passage 15 communicating with the control chamber 14 is provided on the valve body.
The outer side of the main valve element 2 is tightly attached to the inner wall of the valve body 1, and the main valve element and the valve body form a reciprocating type movable sealing structure. The frequency of valve up and down movement changes the pressure in chamber 14 causing main spool 2 to move up and down, determining the size of the communication opening between outlet 12 and flow passage 13, thereby regulating the magnitude of the outlet flow.
In addition, the inner side of main spool 2 is provided with an elastic member 24 connected to valve body 1, and elastic member 24 provides an elastic force for upward movement of main spool 2. Since the oil pressure in flow passage 13 is greater than the sum of the oil pressure in control chamber 14 and the upward returning force of elastic member 24, main spool 2 is urged to move downward, the sum of the oil pressure in control chamber 14 and the upward returning force of elastic member 24 is greater than the oil pressure in control chamber 14, and main spool 2 moves upward.
In addition, the balance passage 15 includes a balance hole 151 and a balance chamber 152 opened on the valve body, the balance hole 151 communicates with a lower end of the control chamber 152, and the balance hole 151 is located at an upper side of the control valve 3 and the balance chamber 152 is located at an upper side of the balance hole 151. The change in the frequency of the main valve up-and-down movement causes the change in the amount of oil supplied to the control chamber 3, but since the amount of oil supplied to the equalization passage 15 is fixed, the oil pressure in the control chamber 3 changes, and the higher the frequency of the valve movement, the lower the oil pressure in the control chamber 14. The greater the flow of the valve, the less the damping of the shock absorber.
Referring to fig. 2, in addition, the control valve 3 includes a plurality of elastically deformable valve plates 31 stacked together, two ends of the control valve 3 are fixedly connected to the inner side of the valve body 1, and a sealing ring 4 for sealing between the control cavity 14 and the valve body 1 is further disposed at the upper end of the control valve 3. Due to the influence of the oil pressure of the control chamber 14, the valve plate of the control valve 3 bends downwards to be elastically deformed, so that the volume of the control chamber 14 is changed.
Different from the prior art, when the frequency of the up-and-down reciprocating motion of the valve is changed, the frequency valve realizes the liquid flow regulation effect by the up-and-down movement of the main valve core.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. The utility model provides a frequency valve, includes the valve body, be equipped with import, export and intercommunication runner between them on the valve body, its characterized in that, the valve body has the control chamber that is located the runner below, the activity is provided with main valve core in the control chamber, main valve core reciprocates at the control chamber and adjusts the flow between export and the runner, set up the intercommunicating pore that makes runner and control chamber intercommunication on the main valve core, the lower part of control chamber still is equipped with the control valve block that changes the control chamber volume, be equipped with the balanced passageway with control chamber lower part intercommunication on the valve body.
2. The frequency valve of claim 1, wherein the upper side of the main poppet and the valve body have grooves for balancing port cross-sectional pressure.
3. The frequency valve of claim 2, wherein the groove is located at an upper end of the main valve element and a lower section of the valve body, and the shape and size of the groove are changed to obtain different section pressures of the valve port.
4. The frequency valve of claim 3, wherein the flow passage has projections on both left and right sides thereof for engaging the main spool, the projections engaging the blocking portion to block communication between the outlet and the flow passage.
5. The frequency valve of claim 4, wherein the outer side of the main spool abuts the inner wall of the valve body, both forming a reciprocating dynamic seal.
6. The frequency valve according to any one of claims 1 to 5, wherein the main spool is provided on an inner side thereof with an elastic member connected to the valve body, the elastic member providing an elastic force for upward movement of the main spool.
7. The frequency valve according to claim 6, wherein the balance passage includes a balance hole and a balance chamber opened on the valve body, the balance hole communicates with a lower end of the control chamber, and the balance hole is located at an upper side of the control valve, and the balance chamber is located at an upper side of the balance hole.
8. The frequency valve according to claim 7, wherein the control valve comprises a stack of a plurality of elastically deformable valve plates, two ends of the control valve are fixedly connected to the inner side of the valve body, and a sealing ring for sealing between the control cavity and the valve body is further provided at the upper end of the control valve.
CN202010422513.7A 2020-05-19 2020-05-19 Frequency valve Active CN111473084B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010422513.7A CN111473084B (en) 2020-05-19 2020-05-19 Frequency valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010422513.7A CN111473084B (en) 2020-05-19 2020-05-19 Frequency valve

Publications (2)

Publication Number Publication Date
CN111473084A true CN111473084A (en) 2020-07-31
CN111473084B CN111473084B (en) 2023-06-13

Family

ID=71762457

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010422513.7A Active CN111473084B (en) 2020-05-19 2020-05-19 Frequency valve

Country Status (1)

Country Link
CN (1) CN111473084B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1455823B2 (en) * 1963-06-13 1974-11-07 Regie Nationale Des Usines Renault, Boulogne-Billancourt, Hauts-De-Seine (Frankreich) Fluid shock absorbers for road vehicles
CN103591207A (en) * 2012-08-14 2014-02-19 株式会社万都 Piston valve of shock absorber
CN108713111A (en) * 2016-01-03 2018-10-26 闫石 The improvement of valve is relied on frequency
CN109154353A (en) * 2016-05-23 2019-01-04 蒂森克虏伯比尔斯坦有限公司 Frequency selectivity damper for motor vehicles, with bypass control valve (BCV)
CN110273965A (en) * 2018-03-15 2019-09-24 Zf腓特烈斯哈芬股份公司 Damper related with frequency
CN212479993U (en) * 2020-05-19 2021-02-05 常州普宸电子有限公司 Frequency valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1455823B2 (en) * 1963-06-13 1974-11-07 Regie Nationale Des Usines Renault, Boulogne-Billancourt, Hauts-De-Seine (Frankreich) Fluid shock absorbers for road vehicles
CN103591207A (en) * 2012-08-14 2014-02-19 株式会社万都 Piston valve of shock absorber
CN108713111A (en) * 2016-01-03 2018-10-26 闫石 The improvement of valve is relied on frequency
CN109154353A (en) * 2016-05-23 2019-01-04 蒂森克虏伯比尔斯坦有限公司 Frequency selectivity damper for motor vehicles, with bypass control valve (BCV)
CN110273965A (en) * 2018-03-15 2019-09-24 Zf腓特烈斯哈芬股份公司 Damper related with frequency
CN212479993U (en) * 2020-05-19 2021-02-05 常州普宸电子有限公司 Frequency valve

Also Published As

Publication number Publication date
CN111473084B (en) 2023-06-13

Similar Documents

Publication Publication Date Title
US8833532B2 (en) Shock absorber
CN100476236C (en) Adjustable absorber
JP5961129B2 (en) Shock absorber
US8302746B2 (en) Hydraulic shock absorber
AU2014273843B2 (en) A shock absorber
CN102364152B (en) External electromagnetic throttling valve type double-air-chamber adjustable damp shock absorber
CN102192265A (en) Shock absorber
CN115263976B (en) Multistage regulating damping valve
CN212479993U (en) Frequency valve
CN111365402B (en) Magnetorheological fluid bidirectional damping regulating valve
CN104315063A (en) Damper
CN108713110B (en) Frequency-selectable damping valve and shock absorber and piston with same
CN111473084B (en) Frequency valve
US20230193973A1 (en) Shock absorber
JP4356016B2 (en) Hydraulic shock absorber
CN112240369A (en) Valve device with adjustable compression damping
CN202360662U (en) External electromagnetic throttling valve type double-air chamber damp-adjustable shock absorber
CN108679144B (en) Automotive suspension and pilot type semi-active damper thereof
KR102385442B1 (en) Shock absorber with a frequency unit
CN209875595U (en) Pilot-operated type static-difference-free pressure reducing valve
KR20120025899A (en) Valve structure of a shock absorber
CN220015918U (en) Flow regulating valve for shock absorber, shock absorber and vehicle
CN213628651U (en) Valve device with adjustable compression damping
CN115244313B (en) Slide valve of high-grade hydraulic damper
US20240183423A1 (en) Valve and shock absorber

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant