CN211343549U - Halbach permanent magnet array type hydraulic cylinder composite buffering device - Google Patents
Halbach permanent magnet array type hydraulic cylinder composite buffering device Download PDFInfo
- Publication number
- CN211343549U CN211343549U CN201921832488.9U CN201921832488U CN211343549U CN 211343549 U CN211343549 U CN 211343549U CN 201921832488 U CN201921832488 U CN 201921832488U CN 211343549 U CN211343549 U CN 211343549U
- Authority
- CN
- China
- Prior art keywords
- halbach permanent
- permanent magnet
- hydraulic cylinder
- piston
- magnet array
- 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.)
- Active
Links
- 230000003139 buffering effect Effects 0.000 title description 8
- 239000002131 composite material Substances 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000005389 magnetism Effects 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000003491 array Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Abstract
The utility model relates to a compound buffer of Halbach permanent magnetism array pneumatic cylinder belongs to pneumatic cylinder technical field. The utility model discloses by the piston rod, the pneumatic cylinder body, the piston, the oil blanket, Halbach permanent magnet array I, cylindrical buffer structure, Halbach permanent magnet array II, quiet sealing washer, the oil-out, the pneumatic cylinder bottom, the cylinder bottom shaft shoulder is constituteed. The utility model discloses under the same magnetic force condition, Halbach permanent magnetism array volume is littleer with the quality, and pneumatic cylinder structure is compacter. The two Halbach permanent magnet arrays generate mutually exclusive acting force to effectively slow down impact vibration from the stroke of the piston rod to the terminal, so that the transmission performance of the hydraulic cylinder is improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a compound buffer of Halbach permanent magnetism array pneumatic cylinder belongs to pneumatic cylinder technical field.
Background
The hydraulic cylinder is a main actuating element of the hydraulic transmission system and plays a crucial role in transmission performance. When the working stroke of the hydraulic cylinder reaches the terminal, inertial impact can be generated, so that impact vibration and noise are caused, the work is not stable, and the service life is influenced. Therefore, it is important to improve the damping performance of the hydraulic cylinder.
The Halbach permanent magnet array is an ideal magnetic field model, can generate a single-side strong magnetic field, enables magnetic field energy to be concentrated on one side, and utilizes the magnetic field to the maximum extent. The Halbach permanent magnet array is used for combining the hydraulic cylinder buffer device with the traditional throttling buffer device, so that the buffer performance of the buffer device is improved, the impact vibration and noise of the hydraulic cylinder are reduced, the fatigue damage is reduced, and the service life is prolonged.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a compound buffer of Halbach permanent magnet array pneumatic cylinder, the impact vibration when the purpose reduces pneumatic cylinder working stroke to terminal to improve shock-absorbing capacity, increase of service life.
The technical scheme of the utility model is that: a Halbach permanent magnet array type hydraulic cylinder composite buffering device comprises a piston rod, a hydraulic cylinder body, a piston, an oil seal, a Halbach permanent magnet array I, a cylindrical buffering structure, a Halbach permanent magnet array II, a static sealing ring, an oil outlet, a hydraulic cylinder bottom and a cylinder bottom shaft shoulder.
The piston rod is connected with the piston through threads and is coaxial, and the piston rod is positioned through a shaft shoulder at the tool withdrawal groove on the piston rod. Be equipped with the oil blanket between piston and the pneumatic cylinder body, cylindrical buffer structure and piston integrated into one piece and coaxial, cylindrical buffer structure is located the no pole chamber side of piston, puts at cylindrical buffer structure's central point and is equipped with square groove, I interference fit of Halbach permanent magnet array install in square inslot. A square groove is formed in the center of the cylinder bottom shaft shoulder, and the Halbach permanent magnet array II is installed in the square groove in an interference fit mode. A static sealing ring is additionally arranged at the contact position of the hydraulic cylinder body and the hydraulic cylinder bottom, so that hydraulic oil in the cylinder is prevented from leaking. The rodless cavity is communicated with the buffer cavity, the buffer cavity is communicated with the hole A and the hole B, and the hole B is communicated with the oil outlet.
The utility model has the advantages that:
(1) under the same magnetic force condition, the Halbach permanent magnet array is smaller in size and mass, and the hydraulic cylinder is more compact in structure.
(2) The two Halbach permanent magnet arrays generate mutually exclusive acting force to effectively slow down impact vibration from the stroke of the piston rod to the terminal, so that the transmission performance of the hydraulic cylinder is improved, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the hydraulic cylinder comprises a piston rod 1, a hydraulic cylinder body 2, a piston 3, an oil seal 4, a 5-Halbach permanent magnet array I, a 6-cylindrical buffer structure, a 7-Halbach permanent magnet array II, a 8-static sealing ring, an oil outlet 9, a hydraulic cylinder bottom 10, a cylinder bottom shaft shoulder 11, a hole A I, a hole B, a buffer cavity III and a rodless cavity IV.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Example 1: as shown in fig. 1, a Halbach permanent magnet array type hydraulic cylinder composite buffering device comprises a piston rod 1, a hydraulic cylinder body 2, a piston 3, an oil seal 4, a Halbach permanent magnet array i 5, a cylindrical buffering structure 6, a Halbach permanent magnet array ii 7, a static sealing ring 8, an oil outlet 9, a hydraulic cylinder bottom 10 and a cylinder bottom shaft shoulder 11;
the piston rod 1 and the piston 3 are connected through threads and are coaxial, and are positioned through a shaft shoulder at a tool withdrawal groove on the piston rod 1. An oil seal 4 is arranged between the piston 3 and the hydraulic cylinder body 2, a cylindrical buffer structure 6 and the piston 3 are integrally formed and coaxial, the cylindrical buffer structure 6 is positioned on the rodless cavity side of the piston 3, a square groove is milled in the center of the cylindrical buffer structure 6, and a Halbach permanent magnet array I5 is installed in the square groove in an interference fit mode; a square groove is milled in the center of the cylinder bottom shaft shoulder 11, and a Halbach permanent magnet array II 7 is installed in the square groove in an interference fit manner; a static sealing ring 8 is additionally arranged at the contact position of the hydraulic cylinder body 2 and the hydraulic cylinder bottom 10 to prevent hydraulic oil in the cylinder from leaking. The rodless cavity IV is communicated with a buffer cavity III, the buffer cavity III is communicated with a hole AI and a hole BII, and the hole BII is communicated with an oil outlet 9.
The principle of the utility model is that: the piston rod pushes the piston 3 to move towards the cylinder bottom 10 of the hydraulic cylinder. Oil in the rodless cavity IV flows through the buffer cavity III under the pushing and extruding action of the piston 3, passes through the hole AI and the hole BI, and is discharged from the oil outlet 9. Along with piston 3 is to the motion of pneumatic cylinder bottom of the cylinder 10, the distance between cylindrical buffer structure 6 and pneumatic cylinder bottom of the cylinder 10 reduces, cylindrical buffer structure 6 produces throttle buffering effect after through the shrink cross-section, simultaneously, install the Halbach permanent magnetism array I5 on cylindrical buffer structure 6 and install the Halbach permanent magnetism array 7 II distance on pneumatic cylinder bottom of the cylinder 10 and reduce, magnetic field repulsion increase, produce the hindrance effect to the motion of piston 3, offset with piston inertia force, thereby reach the purpose of speed reduction buffering.
The present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit and scope of the present invention by those skilled in the art.
Claims (1)
1. The utility model provides a compound buffer of Halbach permanent magnetism array pneumatic cylinder which characterized in that: the hydraulic cylinder consists of a piston rod (1), a hydraulic cylinder body (2), a piston (3), an oil seal (4), a Halbach permanent magnet array I (5), a cylindrical buffer structure (6), a Halbach permanent magnet array II (7), a static sealing ring (8), an oil outlet (9), a hydraulic cylinder bottom (10) and a cylinder bottom shaft shoulder (11);
the piston rod (1) is connected with the piston (3) through threads and is coaxial with the piston, an oil seal (4) is arranged between the piston (3) and the hydraulic cylinder body (2), the cylindrical buffer structure (6) and the piston (3) are integrally formed and are coaxial, the cylindrical buffer structure (6) is located on the side of a rodless cavity of the piston (3), a square groove is formed in the center of the cylindrical buffer structure (6), and the Halbach permanent magnet array I (5) is installed in the square groove in an interference fit mode; a square groove is formed in the center of the cylinder bottom shaft shoulder (11), and the Halbach permanent magnet array II (7) is installed in the square groove in an interference fit mode; a static sealing ring (8) is additionally arranged at the contact position of a hydraulic cylinder body (2) and a hydraulic cylinder bottom (10), a rodless cavity (IV) is communicated with a buffer cavity (III), the buffer cavity (III) is communicated with a hole A (I) and a hole B (II), and the hole B (II) is communicated with an oil outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832488.9U CN211343549U (en) | 2019-10-29 | 2019-10-29 | Halbach permanent magnet array type hydraulic cylinder composite buffering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921832488.9U CN211343549U (en) | 2019-10-29 | 2019-10-29 | Halbach permanent magnet array type hydraulic cylinder composite buffering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343549U true CN211343549U (en) | 2020-08-25 |
Family
ID=72136120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921832488.9U Active CN211343549U (en) | 2019-10-29 | 2019-10-29 | Halbach permanent magnet array type hydraulic cylinder composite buffering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803322A (en) * | 2021-08-24 | 2021-12-17 | 昆明理工大学 | Nano magnetic fluid gap sealing high-speed hydraulic cylinder |
-
2019
- 2019-10-29 CN CN201921832488.9U patent/CN211343549U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803322A (en) * | 2021-08-24 | 2021-12-17 | 昆明理工大学 | Nano magnetic fluid gap sealing high-speed hydraulic cylinder |
| CN113803322B (en) * | 2021-08-24 | 2022-11-01 | 昆明理工大学 | Nano magnetic fluid gap sealing high-speed hydraulic cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201636117U (en) | Adjustable gap-buffer hydraulic cylinder | |
| CN201636116U (en) | Gap cushioning hydraulic cylinder | |
| CN206958148U (en) | A kind of new bitubular list goes out pole magnetorheological damper | |
| CN203614510U (en) | Hydraulic buffering oil cylinder | |
| CN211343549U (en) | Halbach permanent magnet array type hydraulic cylinder composite buffering device | |
| CN107299922A (en) | A kind of buffering hydraulic cylinder | |
| CN201489118U (en) | Cylinder type vibroseis vibrator | |
| WO2023279748A1 (en) | Hybrid damping mode-based high-output-force vibration isolation mount | |
| CN102954062A (en) | Low-leakage magnetic buffering hydraulic cylinder | |
| CN102434525B (en) | Pumping mechanism | |
| CN111022421B (en) | Double-acting buffering hydraulic cylinder with external load absorption sleeve structure | |
| CN111425483B (en) | Oil cylinder tail end buffering device | |
| CN102536957A (en) | Pneumatic/hydraulic cylinder with buffering mechanism | |
| CN201916281U (en) | Quantitative throttling buffer hydraulic cylinder | |
| CN111425484A (en) | Oil cylinder tail end buffering device | |
| CN201078424Y (en) | Magnetic oscillating damper | |
| CN207906002U (en) | A kind of hydraulic buffer power generator | |
| CN102777443A (en) | Hydraulic cylinder, hydraulic system and engineering machine | |
| CN104763703A (en) | Energy feedback type magneto-rheological-air floating combined performing device | |
| CN208587443U (en) | A kind of combined type damping | |
| CN202441669U (en) | Pneumatic/hydraulic cylinder with buffering mechanism | |
| CN107246447B (en) | Magnetic control brake of spinning and working method | |
| CN209539895U (en) | A kind of single pole Automatic-resetting buffering device | |
| CN201377479Y (en) | Hydraulic cylinder buffer | |
| CN205117879U (en) | A antidetonation pneumatic cylinder for fire engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |