Thin film feedback throttler, throttling method and related device

Abstract

The embodiment of the invention discloses a thin film feedback throttler, a throttling method and a related device. The thin film feedback throttler comprises a multi-layer box body, a first thin film, a second thin film and an annular throttling groove formed in the surface of the multi-layer box body. Wherein a coaxial cavity is formed in the multi-layer box body, the first thin film and the second thin film are sequentially arranged in the coaxial cavity in the axial direction, and the coaxial cavity is divided into at least three independent cavities; the annular throttling groove is communicated with the coaxial cavity to form a throttling structure, and the first thin film and the second thin film are matched with the throttling tables at the corresponding positions to form a thin film feedback structure. Therefore, the two thin film feedback throttlers are connected in series to realize the refinement of regulating and controlling the flow of the oil cavity, the sensitive regulation and control of the throttling flow by the simultaneous deformation of the double thin films when the external load changes are realized, meanwhile, the excessive deformation of the thin films is also avoided, and the throttling performance is effectively improved.

Description

Technical Field

[0001] This application relates to hydrostatic lubrication technology, and more particularly to a thin-film feedback throttling device, throttling method, and related apparatus. Background Technology

[0002] Hydrostatic bearings employ throttles to regulate the flow rate into each oil chamber. The throttle can alter the oil film pressure within the chamber, giving the hydrostatic bearing greater support stiffness and load-bearing capacity. Traditional throttles are classified into fixed throttles and variable throttles based on their throttling characteristics. Fixed throttles, such as orifice throttles and capillary throttles, generate a certain proportion of flow rate change through variations in oil chamber pressure. This throttling method is simple, the throttling characteristics remain unchanged, and they only function when the supported object shifts. Hydrostatic bearings using traditional throttles suffer from technical drawbacks such as low oil film stiffness and poor stability.

[0003] Currently, existing diaphragm throttles and spool valve throttles, when the hydrostatic oil chamber pressure changes, cause the diaphragm or spool valve inside the throttle to deform or displace under the pressure of the oil chamber, thus providing feedback to regulate the flow rate of each oil chamber and compensating for the oil film pressure to a certain extent, thereby improving the oil film stiffness of the hydrostatic support. However, diaphragm throttles are prone to warping deformation when the diaphragm is too thin, and when the diaphragm is too thick, the dynamic response time of the throttle is long and the anti-interference ability is weak; spool valve feedback throttles have large spool valve inertia, resulting in overshoot during regulation and insufficient stability. Summary of the Invention

[0004] In view of this, this application provides a thin-film feedback throttle, a throttle method, and related devices, aiming to achieve precise control of oil chamber flow by connecting two thin-film feedback throttles in series, enabling sensitive control of throttle flow by simultaneous deformation of both thin films when external load changes, while also avoiding excessive deformation of the thin films and effectively improving throttle performance.

[0005] In a first aspect, this application provides a thin-film feedback throttling device, the thin-film feedback throttling device comprising: a multi-layer housing, a first thin film, a second thin film, and an annular throttling groove disposed on the surface of the multi-layer housing; wherein,

[0006] The multi-layered housing forms a coaxial cavity, and the first and second films are sequentially arranged in the coaxial cavity along the axial direction, dividing the coaxial cavity into at least three independent chambers; the annular throttling groove is connected to the coaxial cavity to form a throttling structure, and the first and second films cooperate with the throttling platform at the corresponding positions to form a film feedback structure.

[0007] In one possible embodiment, the multi-layer housing includes a cover plate, an upper housing, a middle housing, and a lower housing that are sequentially sealed together; the cover plate and the upper housing form a pre-compression chamber on the upper side of the first membrane, the upper housing and the middle housing form a first pressure-stabilizing chamber on the lower side of the first membrane, and the middle housing and the lower housing form a second pressure-stabilizing chamber on the upper side of the second membrane and a pressure-regulating chamber on the lower side of the second membrane.

[0008] In one possible embodiment, the first film and the second film are metallic elastic films, the edges of the first film and the second film are fixed between adjacent boxes of the multilayer box, the first film and the second film can be elastically bent relative to the throttling stage; the thickness of the first film is greater than the thickness of the second film.

[0009] In one possible embodiment, the annular throttling groove includes a first annular capillary throttling groove, an annular rectangular throttling groove, and a second annular capillary throttling groove; wherein, the first annular capillary throttling groove is disposed on the upper surface of the upper housing, one end of which is connected to the oil inlet and the other end of which is connected to the pre-pressure chamber; the annular rectangular throttling groove is disposed on the upper surface of the middle housing, one end of which is connected to the oil inlet and the other end of which is connected to the first pressure-stabilizing chamber; the second annular capillary throttling groove is disposed on the upper surface of the lower housing, one end of which is connected to the first pressure-stabilizing chamber and the other end of which is connected to the oil outlet.

[0010] In one possible embodiment, the cross-sections of the first annular capillary flow channel and the second annular capillary flow channel are circular; the cross-section of the annular rectangular throttling channel is rectangular.

[0011] In one possible embodiment, the pre-pressure chamber is connected to the oil inlet via an oil circuit, the first pressure stabilizing chamber and the second pressure stabilizing chamber are connected via the gap between the first diaphragm and the throttling platform, and the second pressure stabilizing chamber and the pressure regulating chamber are connected via the gap between the second diaphragm and the throttling platform.

[0012] In one possible embodiment, the oil inlet is located on the side wall of the upper housing and is divided into two paths that connect to the first annular capillary flow channel and the annular rectangular throttling channel, respectively; the oil outlet is located on the side wall of the lower housing and is connected to the end of the mixing oil path away from the second annular capillary flow channel; one end of the mixing oil path is connected to the second annular capillary flow channel, and the other end is connected to the second pressure stabilizing chamber and the pressure regulating chamber, respectively.

[0013] In one possible embodiment, a sealing ring is provided between the cover plate and the upper box, the upper box and the middle box, and the middle box and the lower box, and the sealing ring is embedded in the sealing groove.

[0014] Secondly, embodiments of this application provide a thin-film feedback throttling method applied to a thin-film feedback throttling device. The thin-film feedback throttling device includes at least two elastic films distributed along the oil passage axial direction, and a support structure that combines with the elastic films to form multiple independent chambers. A fixed throttling unit is provided on the support structure, and the elastic films and the throttling platform combine to form a thin-film feedback throttling unit. The method includes: providing pressure to the multiple independent chambers through the fixed throttling unit, so that the elastic films are in a pre-pressurized initial state; when the oil chamber pressure changes, a pressure difference is formed between the multiple independent chambers to drive the elastic films to elastically deform in the opposite direction; according to the reverse deformation of the elastic films, the hydraulic resistance of the thin-film feedback throttling unit is changed to adjust the flow rate into the oil chamber.

[0015] Thirdly, embodiments of this application provide a thin-film feedback throttling device, which includes any one of the thin-film feedback throttling devices in the first aspect.

[0016] Fourthly, embodiments of this application provide an electronic device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the steps in the second aspect of embodiments of this application.

[0017] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the second aspect of embodiments of this application.

[0018] Sixthly, embodiments of this application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the second aspect of embodiments of this application. The computer program product may be a software installation package.

[0019] As can be seen, the thin-film feedback throttling device, throttling method, and related apparatus provided in this application include: a multi-layer housing, a first thin film, a second thin film, and an annular throttling groove disposed on the surface of the multi-layer housing; wherein, a coaxial cavity is formed inside the multi-layer housing, and the first and second thin films are sequentially disposed in the coaxial cavity along the axial direction, dividing the coaxial cavity into at least three independent chambers; the annular throttling groove is connected to the coaxial cavity to form a throttling structure, and the first and second thin films cooperate with throttling platforms at corresponding positions to form a thin-film feedback structure. Thus, by connecting two thin-film feedback throttling devices in series, the flow rate of the oil chamber is precisely controlled, and the simultaneous deformation of both thin films when the external load changes allows for sensitive control of the throttling flow rate, while also avoiding excessive deformation of the films, effectively improving throttling performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of a thin-film feedback throttling device provided in an embodiment of this application;

[0022] Figure 2 This is a cross-sectional schematic diagram of a thin-film feedback throttling device provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of a throttling groove provided in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the liquid resistance relationship of a thin-film feedback throttle provided in an embodiment of this application;

[0025] Figure 5 This is a schematic diagram illustrating the application of a thin-film feedback throttling device provided in an embodiment of this application;

[0026] Figure 6 This is a schematic flowchart of a thin-film feedback throttling method provided in an embodiment of this application;

[0027] Figure 7 This is a functional unit block diagram of a thin-film feedback throttling device provided in an embodiment of this application;

[0028] Figure 8 This is a structural block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0030] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0031] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0032] In this application's embodiments, "multiple" refers to two or more. In this application's embodiments, "connection" refers to various connection methods, such as direct or indirect connections, to achieve communication between devices; this application's embodiments do not impose any limitations on this.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] The following describes the relevant content, concepts, meanings, technical issues, technical solutions, and beneficial effects involved in the embodiments of this application.

[0035] Hydrostatic bearings utilize flow regulators to adjust the flow rate into each oil chamber. These flow regulators alter the oil film pressure within the chambers, thereby enhancing the bearing's stiffness and load-bearing capacity. Traditional flow regulators are categorized into fixed and variable flow regulators based on their flow characteristics. Fixed flow regulators, such as orifice flow regulators and capillary flow regulators, generate proportional flow rate changes through variations in oil chamber pressure. While simple in method, their flow characteristics remain unchanged, and they only function when the supported object shifts. Hydrostatic bearings using traditional flow regulators suffer from technical drawbacks such as low oil film stiffness and poor stability. Currently, existing diaphragm flow regulators and slide valve flow regulators, when the hydrostatic oil chamber pressure changes, cause the diaphragm or slide valve inside the flow regulator to deform or displace under the influence of the oil chamber pressure, thus providing feedback to regulate the flow rate in each chamber and compensating for the oil film pressure to a certain extent, thereby improving the oil film stiffness of the hydrostatic bearing. However, when the diaphragm of a throttling device is too thin, it is prone to warping and deformation; when the diaphragm is too thick, the dynamic response time of the throttling device is long and its anti-interference ability is weak. The spool valve feedback throttling device has a large spool valve inertia, which leads to overshoot during the adjustment process and insufficient stability.

[0036] In view of this, this application provides a thin-film feedback throttling device, a throttling method, and related apparatus. Please refer to the following for details: Figure 1 , Figure 1 This is a three-dimensional schematic diagram of a thin-film feedback throttling device provided in an embodiment of this application, as shown below. Figure 1 As shown, the thin-film feedback throttling device 100 includes: a multi-layer housing, a first thin film 110, a second thin film 120, and an annular throttling groove disposed on the surface of the multi-layer housing; wherein,

[0037] The multi-layered housing forms a coaxial cavity. The first diaphragm 110 and the second diaphragm 120 are sequentially arranged in the coaxial cavity along the axial direction, dividing the coaxial cavity into at least three independent chambers. The annular throttling groove is connected to the coaxial cavity to form a throttling structure. The first diaphragm 110 and the second diaphragm 120 cooperate with the first throttling platform 140 and the second throttling platform 150 at corresponding positions to form a diaphragm feedback structure.

[0038] The throttling structure and the diaphragm feedback structure form a throttling loop through the oil circuit. The first diaphragm 110 and the second diaphragm 120 undergo elastic deformation in opposite directions as the pressure in the coaxial cavity changes, so as to regulate the oil flow.

[0039] Specifically, in one possible embodiment, the first film 110 and the second film 120 are metallic elastic films, the edges of the first film 110 and the second film 120 are fixed between adjacent boxes of the multilayer box, and the first film 110 and the second film 120 can be elastically bent relative to the first throttling stage 140 and the second throttling stage 150; the thickness of the first film 110 is greater than the thickness of the second film 120.

[0040] As can be seen, in this embodiment, by designing the thickness of the differentiated elastic films, the stiffness of the first film is slightly higher than that of the second film, ensuring the synchronicity of the reverse deformation of the two films when the external load changes, and improving the sensitivity of oil quantity adjustment.

[0041] Specifically, in one possible embodiment, Figure 1 The multi-layered enclosure shown includes a cover plate 160, an upper enclosure 170, a middle enclosure 180, and a lower enclosure 190 that are sequentially and sealed together. Sealing rings are provided between the cover plate 160 and the upper enclosure 170, between the upper enclosure 170 and the middle enclosure 180, and between the middle enclosure 180 and the lower enclosure 190, and the sealing rings are embedded in sealing grooves.

[0042] The diaphragm feedback throttle 100 also includes an oil inlet 1100 and an oil outlet 1110.

[0043] As can be seen, in this embodiment, the dual-film feedback throttle can sensitively regulate the throttling flow rate by deforming the two films simultaneously. While ensuring the throttling effect, it improves the static and dynamic characteristics of the hydrostatic support. At the same time, the multiple sealing design prevents oil leakage and improves the reliability of the throttle.

[0044] Specifically, please refer to Figure 2 , Figure 2 This is a cross-sectional schematic diagram of a thin-film feedback throttling device provided in an embodiment of this application, as shown below. Figure 2 As shown, the cover plate 160 and the upper housing 170 form a pre-compression chamber 210 on the upper side of the first membrane 110; the upper housing 170 and the middle housing 180 form a first pressure-stabilizing chamber 220 on the lower side of the first membrane 110; and the middle housing 180 and the lower housing 190 form a second pressure-stabilizing chamber 230 on the upper side of the second membrane and a pressure-regulating chamber 240 on the lower side of the second membrane. The first pressure-stabilizing chamber 220 and the second pressure-stabilizing chamber 230 are connected.

[0045] The hydraulic pump station provides oil pressure P. SThe hydraulic oil enters through the inlet 1100 and then splits into two streams on the upper surface of the upper housing 170. One stream flows through the annular capillary flow channel on the upper surface of the upper housing 170, splitting into two streams on the other side of the housing, and then enters the upper pre-compression chamber 210 of the first diaphragm 110. The other stream continues to flow to the upper surface of the middle housing 180, and splits into two streams on the other side of the housing through the annular rectangular throttling groove. This stream also splits into two streams: one stream flows to the first pressure-stabilizing chamber 220 below the first diaphragm 110, and is throttled through the gap between the diaphragm and the first throttling platform 140 to enter the second pressure-stabilizing chamber 230 above the second diaphragm 120; the other stream flows through the annular capillary flow channel on the surface of the lower housing 190 to the vicinity of the outlet 1110, where it mixes with the oil flowing out of the second pressure-stabilizing chamber 230 above the second diaphragm 120. Part of the mixed oil flows to the pressure regulating chamber 240 below the second diaphragm 120, and the other part flows out to the oil inlet of the hydrostatic guide slide, providing hydrostatic pressure and supporting the external load.

[0046] Specifically, please refer to Figure 3 , Figure 3 This is a schematic diagram of a throttling groove provided in an embodiment of this application, as shown below. Figure 3 As shown, in one possible embodiment, the annular throttling groove includes a first annular capillary throttling groove 131, an annular rectangular throttling groove 132, and a second annular capillary throttling groove 133; wherein, the first annular capillary throttling groove 131 is disposed on the upper surface of the upper housing 170, one end of which is connected to the oil inlet 1100, and the other end of which is connected to the pre-pressure chamber 210; the annular rectangular throttling groove 132 is disposed on the upper surface of the middle housing 180, one end of which is connected to the oil inlet 1100, and the other end of which is connected to the first pressure stabilizing chamber 220; the second annular capillary throttling groove 133 is disposed on the upper surface of the lower housing 190, one end of which is connected to the first pressure stabilizing chamber 220, and the other end of which is connected to the oil outlet 1110.

[0047] Specifically, in one possible embodiment, the cross-section of the first annular capillary flow channel 131 and the second annular capillary flow channel 133 is circular; the cross-section of the annular rectangular throttling channel 132 is rectangular.

[0048] Specifically, in one possible embodiment, the oil inlet 1100 is opened on the side wall of the upper housing 170 and is divided into two paths that are connected to the first annular capillary flow channel 131 and the annular rectangular throttling channel 132 respectively; the oil outlet 1110 is opened on the side wall of the lower housing 190 and is connected to the end of the mixing oil path away from the second annular capillary flow channel 133; one end of the mixing oil path is connected to the second annular capillary flow channel 133, and the other end is connected to the second pressure stabilizing chamber 230 and the pressure regulating chamber 240 respectively.

[0049] Specifically, in one possible embodiment, the pre-pressure chamber 210 is connected to the oil inlet 1100 via an oil passage, the first pressure stabilizing chamber 220 is connected to the second pressure stabilizing chamber via the gap between the first diaphragm 110 and the first throttling stage 140, and the second pressure stabilizing chamber 230 is connected to the pressure regulating chamber 240 via the gap between the second diaphragm 120 and the second throttling stage 150.

[0050] Please see Figure 4 , Figure 4 This is a schematic diagram of the liquid resistance relationship of a thin-film feedback throttling device provided in an embodiment of this application, as shown below. Figure 4 As shown, R1 and R2 are annular rectangular groove throttling fluid resistances, R3 and R4 are annular capillary throttling fluid resistances, R5 is the fluid resistance of the first throttling stage 140, R6 is the fluid resistance of the second throttling stage 150, and P... s P is the inlet oil pressure. r This refers to the oil outlet pressure.

[0051] Please combine Figure 5 , Figure 5 This is a schematic diagram illustrating the application of a thin-film feedback throttling device provided in an embodiment of this application, such as... Figure 5 As shown, when the external load on the spindle or guide rail increases, the oil chamber pressure P r As the pressure rises, the pressure R3 in the pre-compression chamber 210 on the upper side of the first diaphragm 110 remains constant, causing the first diaphragm 110 to bend upwards. At this time, the gap between the first diaphragm 110 and its first throttling platform 140 increases, the liquid resistance R5 decreases, and the flow rate Q1 flowing through R5 increases; simultaneously, the oil chamber pressure P r As the flow rate increases, the second diaphragm 120 bends downwards, reducing the gap between the second diaphragm 120 and its second throttling platform 150. This increases the hydraulic resistance R6, decreasing the flow rate Q2 through R6. The hydraulic resistance R4 of the auxiliary oil circuit remains constant, meaning the flow rate Q3 remains constant. Therefore, the total flow rate Qtotal = Q1 + Q3 - Q2. Because Q1 increases and Q2 decreases, Qtotal ultimately increases, supplementing the flow rate in the oil chamber and maintaining P. r It stabilizes and counteracts the effects of increased external load.

[0052] Similarly, when the external load decreases, the oil outlet pressure P r As the pressure decreases, the pressure in the first pressure-stabilizing chamber 220 decreases, the first diaphragm 110 bends downwards, the hydraulic resistance R5 increases, and the flow rate Q1 through R5 decreases; as the pressure in the pressure-regulating chamber 240 decreases, the second diaphragm 120 bends upwards, the hydraulic resistance R6 decreases, and the flow rate Q2 through R6 increases; the total flow rate Qtotal decreases, preventing excessively high oil chamber pressure and achieving P r The dynamic equilibrium.

[0053] As can be seen, in this embodiment, precise flow compensation is achieved through the coordinated adjustment of the reverse deformation of the two thin films; the series-parallel design of the composite throttling shortens the lag time of flow regulation, improves the timeliness of the throttling device response, and also avoids excessive deformation of the thin films, effectively improving the throttling performance.

[0054] This application provides a thin-film feedback throttling method; please refer to [link / reference needed]. Figure 6 , Figure 6 This is a schematic flowchart of a thin-film feedback throttling method provided in an embodiment of this application. The method is applied to, for example... Figure 1-5 The thin-film feedback throttling device shown includes at least two elastic diaphragms distributed axially along the oil passage, and a supporting structure that combines with the elastic diaphragms to form multiple independent chambers; a fixed throttling unit is provided on the supporting structure, and the elastic diaphragms and the throttling platform combine to form a thin-film feedback throttling unit; as shown... Figure 6 As shown, the method includes:

[0055] The S610 provides pressure to multiple independent chambers through a fixed throttling unit.

[0056] Specifically, the elastic diaphragms are placed in a pre-compressed initial state. At least two elastic diaphragms are placed in a preset pre-compressed state, meaning they maintain an initial gap with their corresponding throttling platforms. By actively adjusting the pre-compressing chamber pressure through a fixed throttling unit, the initial gap between the two diaphragms is kept within the linear deformation range, avoiding adjustment dead zones caused by excessively large or small initial gaps, and improving response sensitivity under small loads.

[0057] S620: When the oil chamber pressure changes, a pressure difference is formed between multiple independent chambers to drive the elastic diaphragm to elastically deform in the opposite direction.

[0058] Specifically, by using the reverse deformation of the two membranes, when the gap between the two membranes increases, the gap between the other membrane decreases, thus constraining the maximum deformation of the single membrane and enabling effective throttling within the oil cavity.

[0059] S630 adjusts the flow rate into the oil chamber by changing the hydraulic resistance of the diaphragm feedback throttling unit based on the reverse deformation of the elastic diaphragm.

[0060] In this process, the liquid resistance of the diaphragm feedback throttling unit is changed, that is, the gap between the diaphragm and the throttling platform is changed, and the flow rate into the oil chamber is adjusted to achieve dynamic stability of the oil chamber pressure.

[0061] As can be seen, in this embodiment, pressure is first supplied to multiple independent chambers through a fixed throttling unit. Secondly, when the oil chamber pressure changes, a pressure difference is created between the multiple independent chambers, driving the elastic diaphragm to deform elastically in the opposite direction. Finally, based on the reverse deformation of the elastic diaphragm, the hydraulic resistance of the diaphragm feedback throttling unit is changed, thus regulating the flow rate into the oil chamber. This overcomes the limitations of traditional single-diaphragm throttling methods that rely on passive initial gaps based on machining precision, avoiding the inability to adjust due to excessively large or small initial gaps, and effectively improving throttling performance.

[0062] The above primarily describes the solutions of the embodiments of this application from the perspective of the method execution process. It is understood that, in order to achieve the above functions, the device includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments provided herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0063] This application embodiment can divide the electronic device into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional unit. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0064] and Figure 6 The implementation is consistent with the previous one; please refer to [link / reference]. Figure 7 , Figure 7 This is a functional unit block diagram of a thin-film feedback throttling device provided in an embodiment of this application, such as... Figure 7 As shown, the membrane feedback throttling device 700 is equipped with a device such as... Figure 1-5 The thin-film feedback throttling device shown includes at least two elastic diaphragms distributed axially along the oil passage, and a supporting structure that combines with the elastic diaphragms to form multiple independent chambers. A fixed throttling unit is provided on the supporting structure, and the elastic diaphragms and the throttling platform combine to form a thin-film feedback throttling unit. The thin-film feedback throttling device 700 includes: a providing unit 710, a driving unit 720, and an adjusting unit 730; wherein...

[0065] The supply unit 710 is specifically used to provide pressure to multiple independent chambers through a fixed throttling unit, so that the elastic diaphragm is in a pre-compressed initial state; the drive unit 720 is specifically used to create a pressure difference between the multiple independent chambers when the oil chamber pressure changes, so as to drive the elastic diaphragm to elastically deform in the opposite direction; the adjustment unit 730 is specifically used to change the liquid resistance of the diaphragm feedback throttling unit according to the reverse deformation of the elastic diaphragm, so as to adjust the flow rate into the oil chamber.

[0066] It is understood that since the method embodiments and the device embodiments are different presentations of the same technical concept, the content of the method embodiment section in this application should be adapted to the device embodiment section in a synchronous manner, and will not be repeated here.

[0067] Figure 8 This is a structural block diagram of an electronic device provided in an embodiment of this application. For example... Figure 8 As shown, the electronic device 800 may include one or more of the following components: a processor 801 and a memory 802 coupled to the processor 801, wherein the memory 802 may store one or more computer programs, which may be configured to implement the methods described in the examples above when executed by one or more processors 801.

[0068] Processor 801 may include one or more processing cores. Processor 801 connects to various parts within the electronic device 800 using various interfaces and lines, and performs various functions and processes data of the electronic device 800 by running or executing instructions, programs, code sets, or instruction sets stored in memory 802, and by calling data stored in memory 802. Optionally, processor 801 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). Processor 801 may integrate one or more of a Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. It is understood that the aforementioned modem may also not be integrated into processor 801, but may be implemented separately through a communication chip.

[0069] The memory 802 may include random access memory (RAM) or read-only memory (ROM). The memory 802 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 802 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as touch functionality, sound playback functionality, image playback functionality, etc.), and instructions for implementing the various method examples described above. The data storage area may also store data created by the electronic device 800 during use.

[0070] It is understood that the electronic device 800 may include more or fewer structural elements than those shown in the above block diagram, such as a power module, physical buttons, WiFi (Wireless Fidelity) module, speaker, Bluetooth module, sensor, etc., without limitation.

[0071] This application also provides a computer storage medium storing a computer program / instructions thereon, which, when executed by a processor, implements some or all of the steps of any of the methods described in the above method embodiments.

[0072] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments.

[0073] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0075] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0076] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can be physically comprised separately, or two or more units can be integrated into one unit. The integrated unit described above can be implemented in hardware or in the form of hardware plus software functional units.

[0077] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute partial steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes: a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, volatile memory, or non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM), etc., which are various media capable of storing program code.

[0078] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can easily conceive of variations or substitutions without departing from the spirit and scope of the present invention, and various modifications and alterations can be made, including combinations of the different functions and implementation steps described above, as well as software and hardware implementation methods, all of which are within the protection scope of the present invention.

Claims

1. A thin film feedback restrictor characterized by, The thin film feedback restrictor comprises a multilayer box, a first thin film, a second thin film and an annular restrictor groove arranged on the surface of the multilayer box, wherein The multilayer box forms a coaxial cavity inside, the first thin film and the second thin film are arranged in the coaxial cavity in sequence along the axial direction, and the coaxial cavity is divided into at least three independent chambers; the annular restrictor groove is communicated with the coaxial cavity to form a restrictor structure, and the first thin film and the second thin film cooperate with corresponding restrictor platforms to form a thin film feedback structure.

2. The thin film feedback restrictor of claim 1, wherein The multilayer box comprises a cover plate, an upper box, a middle box and a lower box which are sequentially and sealingly connected; The cover plate and the upper box form a pre-pressing chamber on the upper side of the first thin film, the upper box and the middle box form a first stable pressure chamber on the lower side of the first thin film, and the middle box and the lower box form a second stable pressure chamber on the upper side of the second thin film and a pressure regulating chamber on the lower side of the second thin film.

3. The thin film feedback restrictor of claim 2, wherein, The first thin film and the second thin film are metal elastic thin films, the edges of the first thin film and the second thin film are fixed between adjacent boxes of the multilayer box, the first thin film and the second thin film can be elastically bent relative to the restrictor platform, and the thickness of the first thin film is greater than the thickness of the second thin film.

4. The thin-film feedback restrictor of claim 2 or 3, wherein, The annular restrictor groove comprises a first annular capillary restrictor groove, an annular rectangular restrictor groove and a second annular capillary restrictor groove, wherein The first annular capillary restrictor groove is arranged on the upper surface of the upper box, one end of the first annular capillary restrictor groove is communicated with an oil inlet, and the other end of the first annular capillary restrictor groove is communicated with the pre-pressing chamber; the annular rectangular restrictor groove is arranged on the upper surface of the middle box, one end of the annular rectangular restrictor groove is communicated with the oil inlet, and the other end of the annular rectangular restrictor groove is communicated with the first stable pressure chamber; the second annular capillary restrictor groove is arranged on the upper surface of the lower box, one end of the second annular capillary restrictor groove is communicated with the first stable pressure chamber, and the other end of the second annular capillary restrictor groove is communicated with an oil outlet.

5. The thin film feedback restrictor of claim 4, wherein, The cross sections of the first annular capillary restrictor groove and the second annular capillary restrictor groove are circular, and the cross section of the annular rectangular restrictor groove is rectangular.

6. The thin film feedback restrictor of claim 4, wherein, The pre-pressing chamber is communicated with the oil inlet through an oil path, the first stable pressure chamber is communicated with the second stable pressure chamber through the gap between the first thin film and the restrictor platform, and the second stable pressure chamber is communicated with the pressure regulating chamber through the gap between the second thin film and the restrictor platform.

7. The thin film feedback restrictor of claim 6, wherein The oil inlet is arranged on the side wall of the upper box and is communicated with the first annular capillary restrictor groove and the annular rectangular restrictor groove in two paths; The oil outlet is arranged on the side wall of the lower box and is communicated with one end of a mixed oil path away from the second annular capillary restrictor groove; One end of the mixed oil path is communicated with the second annular capillary restrictor groove, and the other end of the mixed oil path is communicated with the second stable pressure chamber and the pressure regulating chamber, respectively.

8. The thin film feedback restrictor of any one of claims 2-7, wherein, Sealing rings are arranged between the cover plate and the upper box, the upper box and the middle box, and the middle box and the lower box, and the sealing rings are embedded in sealing grooves.

9. A thin film feedback throttling method, characterized by, The application is applied to a thin film feedback throttle device, which comprises at least two elastic thin films distributed along an oil path axis and a bearing structure combined with the elastic thin films to form multiple independent chambers; a fixed throttle unit is arranged on the bearing structure, the elastic thin film is combined with a throttle platform to form a thin film feedback throttle unit; the method comprises the following steps: Pressure is provided to the multiple independent chambers through the fixed throttle unit, so that the elastic thin film is in a pre-pressing initial state; When the oil chamber pressure changes, a pressure difference is formed between the multiple independent chambers to drive the elastic thin film to elastically deform in the opposite direction; According to the reverse deformation of the elastic thin film, the liquid resistance of the thin film feedback throttle unit is changed to adjust the flow rate of the inflow oil chamber.

10. A thin film feedback restriction device characterized by, The thin film feedback throttle device comprises the thin film feedback throttle device as claimed in any one of claims 1-9.

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