CN112392783A - Metal corrugated pipe for energy accumulator - Google Patents
Metal corrugated pipe for energy accumulator Download PDFInfo
- Publication number
- CN112392783A CN112392783A CN202011382193.3A CN202011382193A CN112392783A CN 112392783 A CN112392783 A CN 112392783A CN 202011382193 A CN202011382193 A CN 202011382193A CN 112392783 A CN112392783 A CN 112392783A
- Authority
- CN
- China
- Prior art keywords
- section
- wave
- trough
- crest
- wall
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/12—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
- F15B1/14—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery by means of a rigid annular supporting member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/16—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention belongs to the technical field of mechanical equipment parts, in particular to a metal corrugated pipe for an energy accumulator, which solves the problem that the existing metal corrugated pipe cannot be well applied to the energy accumulator due to poor expansion and contraction capability, inflexible reaction and poor fatigue resistance, and adopts the following scheme: the axial section pipe wall of the metal corrugated pipe is of a wavy ripple and is provided with a wave crest and a wave trough, the wave crest is positioned at the maximum diameter position of the outer wall of the corrugated pipe, the wave trough is positioned at the minimum diameter position of the outer wall of the corrugated pipe, the ripple is provided with a wave crest section containing the wave crest and a wave trough section containing the wave trough, the wave crest section and the wave trough section are in circular arc shapes, a wavy amplitude section is arranged between the wave crest section and the wave trough section, and adjacent wave amplitude sections are in a waveform with the curve bending direction consistent so that the two sections can be attached; the radius of the arc-shaped wave peak section on the pipe wall is 2 to 10 times of the wall thickness; the radius of the arc-shaped wave valley section on the pipe wall is 1 to 10 times of the wall thickness.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment parts, and particularly relates to a metal corrugated pipe for an energy accumulator.
Background
The metal corrugated pipe is commonly used for connecting pipelines with adjacent axes not on a straight line by utilizing the flexibility of the metal corrugated pipe, but the metal corrugated pipe is popularized and used in another product at present, and the product is an energy accumulator;
chinese patent publication No. CN210371395U discloses a bellows type energy accumulator, which uses a common metal bellows as shown in fig. 1, and when the energy accumulator using the bellows is applied to an oil pressure system, compared with the existing bellows inflatable, piston spring type or piston weight type energy accumulator, the energy accumulator has the advantages of good isolation effect of energy storage medium and hydraulic oil, long service life and easy maintenance, but the deformation capability, i.e. the energy storage capability of the common bellows is not obviously improved;
chinese patent publication No. CN111365307A discloses an energy accumulator for an automobile, in which a bellows is a metal bellows, but the publication does not disclose the specific structure of the bellows, and from the displayed bellows pattern, the peak of the outermost ring of the bellows after the expansion and contraction capacity is increased is in a sharp angle shape, and the peak is easy to generate stress concentration to generate fatigue fracture; taking a hydraulic system of a gearbox in an automobile hydraulic system as an example, components need high reliability and long service life, and the energy storage and release of an energy accumulator need to be circulated for dozens of thousands of times and have enough energy storage capacity, so that no metal corrugated pipe which can really meet the requirement of the automobile energy accumulator is available at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is a bellows which can satisfy the use requirements of an energy accumulator for a vehicle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a metal bellows for energy storage ware, bellows axial profile pipe wall just has crest and trough for the ripple of height fluctuation, the crest is located bellows outer wall maximum diameter department, the trough is located bellows outer wall minimum diameter department, the ripple has the crest section that contains the crest and the trough section that contains the trough, crest section and trough section are circular-arcly, be wavy amplitude of wave section between crest section and the trough section, adjacent amplitude of wave section has the unanimous wave form that is convenient for both laminates and is close to of curve bending direction.
In the above scheme, the wall thickness of the corrugated pipe and the circumferential three-dimensional structure of the corrugation are considered, the corrugation refers to a linear corrugation on the outer wall of the axial section of the corrugated pipe, and the amplitude section does not represent the amplitude; the meaning that the adjacent amplitude sections have the same curve bending direction, so that the two adjacent amplitude sections are in close contact with each other is that the curve bending directions of all the amplitude sections are the same, the bending directions of the points, which are equidistant from the axis of the corrugated pipe, on each amplitude section are similar or the same, each ascending amplitude section is the same, each descending amplitude section is the same, but the ascending amplitude section is similar to the descending amplitude section.
Specifically, the radius of the arc-shaped wave peak section on the pipe wall is 2 to 10 times of the wall thickness.
Specifically, the radius of the arc-shaped wave valley section on the pipe wall is 1 to 10 times of the wall thickness.
Specifically, in order to make the amplitude segments easily deform, the shape of two adjacent amplitude segments is a wave segment having two troughs and one peak and one trough and two peaks, and the trough peak mentioned here only refers to the trough peak of the wave amplitude segment.
The invention has the beneficial effects that: redesigned the structural shape of metal bellows, made it become the bellows that the energy storage used of high deformability, high reliability and long-life, specifically be: firstly, designing a wave crest section containing a wave crest and a wave trough section containing a wave trough into circular arcs, improving the fatigue resistance of the corrugated pipe at a node when the corrugated pipe frequently stores and releases energy, wherein the shape of the corrugated pipe is similar to that of the existing corrugated pipe, but the axial deformation capacity of the corrugated pipe needs to be improved, and the arc radiuses of the wave crest section and the wave trough section are required to be as small as possible under the condition of ensuring the fatigue resistance, and are different from the existing corrugated pipe in terms of requirements; secondly, the wave amplitude section is designed into a wave shape, when the corrugated pipe is subjected to energy storage and pressure, the wave amplitude section is equivalent to the end face and can be subjected to extrusion force of the inner ring and the outer ring, the wave-shaped wave amplitude section is easy to deform, the resistance to the extrusion force of the inner ring and the outer ring is reduced, and the deformation capacity and the flexible reaction capacity of the corrugated pipe are improved; thirdly, after the adjacent wave amplitude sections are attached as much as possible, the degree of the corrugated pipe capable of shrinking is only determined by the arc radius of the wave crest section or the wave trough section (generally determined by the arc radius of the wave trough section), and the deformation capacity of the corrugated pipe is improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional metal corrugated pipe;
FIG. 2 is a schematic structural view of a metal bellows of the present invention;
FIG. 3 is an enlarged partial cross-sectional view of a corrugated portion of the metal bellows of the present invention;
FIG. 4 is a view showing a state where the metal bellows of the present invention is applied to an accumulator;
fig. 5 is a comparison of three states of the metal bellows of the present invention.
In the figure: 1. wave crest section, 2 wave trough section, 3 wave amplitude section.
Detailed Description
The following describes technical solutions in embodiments of the present invention in detail with reference to the accompanying drawings of the present specification.
The metal corrugated pipe for the energy accumulator shown in the attached drawings 2 and 3, the axial section pipe wall of the corrugated pipe is corrugated in height and has wave crests and wave troughs, the wave crests are located at the maximum diameter position of the outer wall of the corrugated pipe, the wave troughs are located at the minimum diameter position of the outer wall of the corrugated pipe, the corrugated pipe is provided with wave crest sections 1 containing the wave crests and wave trough sections 2 containing the wave troughs, the wave crest sections 1 and the wave trough sections 2 are arc-shaped, waved amplitude sections 3 are arranged between the wave crest sections 1 and the wave trough sections 2, the adjacent amplitude sections 3 are waveforms which are provided with curve bending directions which are consistent and convenient for the two sections to be attached and close to each other, and the waveforms of.
The radius of the arc-shaped wave crest section on the pipe wall is 2 to 10 times of the wall thickness, the radius of the arc-shaped wave trough section on the pipe wall is 1 to 10 times of the wall thickness, and the design of specific times can be determined according to the parameter requirements of different energy accumulators.
FIG. 4 is a state diagram of the metal bellows used in the accumulator of the present invention, the right end of the accumulator is connected to the hydraulic oil circuit, the bellows is pushed to compress when the oil pressure is increased instantly, the accumulator stores energy, and the bellows releases energy to supplement the hydraulic pressure of the system under the action of the internal medium when the oil pressure of the system is decreased. The bellows is in an expanded state as shown in fig. 5.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (4)
1. The utility model provides a metal bellows for energy storage ware, bellows axial section pipe wall is the ripple of fluctuation and has crest and trough, the crest is located bellows outer wall maximum diameter department, the trough is located bellows outer wall minimum diameter department, characterized by: the ripple has the crest section that contains the crest and the trough section that contains the trough, crest section and trough section are circular-arc, be wavy amplitude section between crest section and the trough section, adjacent amplitude section has the curve and bends the unanimous wave form that the direction is convenient for both laminating are close to.
2. The metal bellows for an accumulator according to claim 1, wherein: the radius of the arc-shaped wave peak section on the pipe wall is 2 to 10 times of the wall thickness.
3. The metal bellows for an accumulator according to claim 1, wherein: the radius of the arc-shaped wave valley section on the pipe wall is 1 to 10 times of the wall thickness.
4. The metal bellows for an accumulator according to claim 1, wherein: the shapes of two adjacent wave amplitude sections are respectively wave sections with two wave troughs and one wave crest and two wave crests of one wave trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382193.3A CN112392783A (en) | 2020-12-01 | 2020-12-01 | Metal corrugated pipe for energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382193.3A CN112392783A (en) | 2020-12-01 | 2020-12-01 | Metal corrugated pipe for energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112392783A true CN112392783A (en) | 2021-02-23 |
Family
ID=74605640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011382193.3A Pending CN112392783A (en) | 2020-12-01 | 2020-12-01 | Metal corrugated pipe for energy accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112392783A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514948A (en) * | 2023-11-22 | 2024-02-06 | 安徽威远新能源科技有限公司 | Vehicle, hydraulic suspension system, energy accumulator and operation method thereof |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
-
2020
- 2020-12-01 CN CN202011382193.3A patent/CN112392783A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514948A (en) * | 2023-11-22 | 2024-02-06 | 安徽威远新能源科技有限公司 | Vehicle, hydraulic suspension system, energy accumulator and operation method thereof |
| CN117759794A (en) * | 2024-02-22 | 2024-03-26 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
| CN117759794B (en) * | 2024-02-22 | 2024-05-24 | 沈阳欧施盾新材料科技有限公司 | Seamless S-shaped swing hose and rocket engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2204593B1 (en) | Threaded tubular connection which is resistant to bending stresses | |
| CN112392783A (en) | Metal corrugated pipe for energy accumulator | |
| CN109630773B (en) | Cam type corrugated metal hose and forming method | |
| CN102478139B (en) | Pipe joint | |
| CN115076219B (en) | Laminated type foil dynamic pressure bearing and shaft system | |
| CN213808250U (en) | Metal corrugated pipe for energy accumulator | |
| CN110206964B (en) | Ocean flexible pipe cable bending limiter with annular cavity | |
| CN205605710U (en) | Multilayer wave spring | |
| CN210800037U (en) | Self-sealing alloy double-corrugation sealing composite gasket | |
| CN215763710U (en) | High-strength metal corrugated pipe | |
| CN214272476U (en) | Metal corrugated pipe-laminated composite damper | |
| CN218494074U (en) | Non-deformable's multilayer wave spring | |
| CN2310914Y (en) | Bellows | |
| CN213117453U (en) | High-elasticity graphite self-sealing packing ring | |
| CN212563186U (en) | Real-time pressure control positioner for well completion sand control pipe column | |
| CN210599981U (en) | All-metal elastic supporting pad | |
| CN217177242U (en) | Dish-shaped wave spring | |
| CN202171405U (en) | Tube and shell type heat exchanger and heavy oil catalysis device with same | |
| CN203286922U (en) | Corrugated oval heat exchange tube | |
| CN113710945A (en) | Fluid line with wave shaped portion | |
| CN219865846U (en) | Corrosion-resistant mica composite gasket | |
| CN110206885B (en) | Self-sealing alloy double-corrugation sealing composite gasket with inner ring and outer ring | |
| CN218844945U (en) | Toothed wave spring | |
| CN2379770Y (en) | Corrugated heat exchange tube | |
| CN118328074A (en) | Dynamic pressure air radial bearing adopting double-layer circumferential Xiang Bian rigid wave foil |
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 |