CN101907110A - Multi-damping-hole buffer sleeve hydraulic cylinder - Google Patents
Multi-damping-hole buffer sleeve hydraulic cylinder Download PDFInfo
- Publication number
- CN101907110A CN101907110A CN 201010278386 CN201010278386A CN101907110A CN 101907110 A CN101907110 A CN 101907110A CN 201010278386 CN201010278386 CN 201010278386 CN 201010278386 A CN201010278386 A CN 201010278386A CN 101907110 A CN101907110 A CN 101907110A
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- Prior art keywords
- hole
- oil
- damping
- hydraulic cylinder
- cushion collar
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- 239000000872 buffer Substances 0.000 title claims abstract description 44
- 238000013016 damping Methods 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000009993 protective function Effects 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000004224 protection Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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Abstract
The invention relates to a multi-damping-hole buffer sleeve hydraulic cylinder. The cylinder bottom is provided with a sixth oil through hole, a ninth oil through hole and a seventh oil through hole, and the sixth oil through hole and the ninth oil through hole are communicated with a valve block arranged on the cylinder bottom through a pipeline; the buffer section of a cylinder body is provided with a buffer sleeve, the end face of one side of the buffer sleeve is provided with a sealing groove for assembling an O-shaped sealing ring, and the other side of the buffer sleeve is contacted with an end cover and tightly pressed by the end cover; the radial direction of the buffer sleeve is provided with 3 to 12 damping holes with different apertures, the diameters of the damping holes are between 1 and 4 millimeters, and the central distance between the damping holes is between 10 and 50 millimeters; and a safety valve playing a role in buffering and overload protection and a one-way valve capable of quickly steering the hydraulic cylinder are arranged at the seventh oil through hole, and the seventh oil through hole is communicated with the one-way valve and the safety valve. The multi-damping-hole buffer sleeve hydraulic cylinder has the advantages of simple structure, convenient assembly, disassembly and maintenance, long service life, high reliability, cost saving, high work efficiency, good buffering effect and stable operation, and is suitable for heavy-duty and high-speed hydraulic cylinders with frequent working condition change.
Description
Technical field
The invention belongs to the oil hydraulic cylinder technical field, relate to a kind of be applicable to heavy duty, at a high speed, the frequent multi-damping-hole buffer sleeve hydraulic cylinder of working conditions change.
Background technique
When the especially heavily loaded high speed hydraulic cylinder of oil hydraulic cylinder required piston motion to oil hydraulic cylinder cylinder head and cylinder bottom, its movement velocity slowed down, and until zero-speed, in order to avoid impact cylinder head and cylinder bottom, damaged oil hydraulic cylinder.Oil hydraulic cylinder buffer structure employing at present has cylindrical buffer plunger, conical buffer plunger, stepped shape buffer plunger, parabola shaped buffer plunger, throttle orifice buffering, the dull and stereotyped buffering of throttling or the like, but for the oil hydraulic cylinder that is higher than the motion of 4m/s speed, above-mentioned buffer structure is difficult to reach cushioning effect well, and exchange buffering component difficulty.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind of simple in structure, dismounting is easy to maintenance, the life-span is long, reliability is high, when the oil hydraulic cylinder working conditions change, exchange buffering cover can reach the multi-damping-hole buffer sleeve hydraulic cylinder of good cushioning effect equally.
The present invention solves the technological method that its technical problem adopts: a kind of multi-damping-hole buffer sleeve hydraulic cylinder, comprise cylinder body, piston and piston rod, have oil through six, oil through nine and oil through seven at the cylinder bottom place, oil through six and oil through nine are connected with valve piece on being installed in cylinder bottom by pipeline, breeze way at cylinder body is equipped with cushion collar, have the seal groove of dress O RunddichtringO in cushion collar one side end face, the opposite side of cushion collar contacts with end cap, is tightly suppressed by cover; Cushion collar radially have a 3-12 damping hole that the aperture is different, the damping hole diameter is between the 1mm to 4mm, the centre distance between the damping hole is between 10mm-50mm; Be equipped with at logical hydraulic fluid port seven places and cushioned and the safety valve of overload protective function, and be equipped with and can make the oil hydraulic cylinder one-way valve rapidly that commutates, oil through seven is connected with one-way valve and safety valve.
Open groove at the cushion collar cylindrical one along axial direction, the groove closed at both ends, the groove end face is a rectangle, area is 6mm
2-12mm
2, groove communicates with logical hydraulic fluid port nine.
Described cushion collar is that copper material is made.
The buffer plunger termination that is positioned at the cushion collar of piston nose is taper shape, and semi-cone angle is 3 °-6 °, and length is for when buffer plunger runs to the end, and the fluid of buffer cavity communicates with the damping hole of cushion collar by logical hydraulic fluid port heptalateral.
Matching gap is 0.1mm-0.15mm between buffer plunger and the cushion collar.
Logical hydraulic fluid port seven is connected with safety valve by pipeline or the valve piece that is contained in cylinder bottom, and when cushioning, the pressure of safety valve is adjusted between the 5MPa-25MPa; Logical simultaneously hydraulic fluid port seven is connected with one-way valve by pipeline or the valve piece that is contained in cylinder bottom, is convenient to feed pressure oil promotion hydraulic cylinder piston inverted running.
Open seal groove at cushion collar by the end face of piston one side, load onto seal ring and open seal groove at cushion collar by the radial direction of end cap one side and load onto seal ring, leak when preventing to cushion.
The invention has the beneficial effects as follows:
1, adopting copper is the cushion collar of made, has 3-12 the damping hole that the aperture is different in the cushion collar radial direction, and the damping hole diameter is 1mm to 4mm, and the center is chosen between 10mm to 50mm between the damping hole, chooses between the cushion collar length 50mm to 500mm;
2, open groove at the cushion collar cylindrical one along axial direction, the groove closed at both ends, the groove end face is a rectangle, area is 6mm
2To 12mm
2Between choose;
3, the buffer plunger termination is conical, and semi-cone angle is to choose between 3 °-6 °, and length is for when buffer plunger runs to the end, and the fluid of buffer cavity can flow out by the damping hole in the outside, and the long right angle side length of its semi-cone angle is decided to be processing semi-cone angle length;
4, buffer plunger and cushion collar matching gap are that 0.1mm-0.15mm chooses;
5, logical hydraulic fluid port seven is connected with one-way valve with safety valve by pipeline or the valve piece that is contained on the cylinder bottom, and safety valve pressure can be chosen between 5MPa-25MPa;
6, change when the oil hydraulic cylinder operating mode, when having difference to require, can change the cushion collar that adapts to its working condition requirement, can save cost like this, increase work efficiency shock-absorbing capacity.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structure enlarged diagram of cushion collar described in Fig. 1.
Among the figure: 1-cushion collar, 2-damping hole, 3-groove, 4-seal groove four, 5-buffer cavity, 6-oil through six, 7-oil through seven, 8-end cap, 9-oil through nine, 10-buffer plunger, 11-cylinder bottom, 12-piston, 13-one-way valve, 14-safety valve, 15-cylinder body, 16-seal ring, 17-piston rod, 18-seal groove 18,19-seal ring 19.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Referring to Fig. 1, a kind of multi-damping-hole buffer sleeve hydraulic cylinder, mainly comprise cylinder body 15, piston 12, piston rod 17, guide sleeve, cylinder head, cylinder bottom 11, Sealing, the valve piece, safety valve 14 and one-way valve 13,15 places have oil through 66 at cylinder bottom, oil through 99 and oil through 77, oil through 66 and oil through 99 are connected with valve piece on being installed in cylinder bottom 11 by pipeline, breeze way at cylinder body 15 is equipped with cushion collar 1, cushion collar 1 one side end faces have the seal groove of dress O RunddichtringO, the opposite side of cushion collar 1 contacts with end cap 8, pushed down tightly by end cap 8, it is that material forms that cushion collar 1 adopts copper, thickness is between the 20mm-40mm, cushion collar 1 radially have a 3-12 damping hole 2 that the aperture is different, the diameter of damping hole 2 is chosen between 1mm-4mm, and the centre distance between the damping hole 2 is chosen between 10mm-50mm; As shown in Figure 2, have groove 3 one along axial direction at cushion collar 1 cylindrical, the closed at both ends of groove 3, enclosed baffle thickness is 10mm-20mm; Be positioned at piston 12 front ends cushion collar 1 buffer plunger 10 end machining coning, semi-cone angle is 3 °-6 ° to be chosen, length is that buffer cavity 5 fluid can flow to groove 3 by the damping hole 2 of end cap 8 one sides through cushion collar 1 and get final product; Buffer plunger 10 is that 0.1mm-0.15mm chooses with cushion collar 1 matching gap; Logical hydraulic fluid port 77 passes through straight ejector half or the type pilot or the cartridge-type safety valve 14 of pipeline or packaged 6mm of going up of valve or 10mm latus rectum, the outer buffer function of 14 safe overload protections of this safety valve and cylinder, and when buffering, the pressure of safety valve 14 is adjusted between the 5MPa-25MPa; Also load onto simultaneously the one-way valve 13 suitable with the oil hydraulic cylinder flow, this one-way valve 13 adopt tubular types or board-like or cartridge-type all can, purpose is a fuel feeding when making the oil hydraulic cylinder reversing motion.
Therefore, that the present invention has is simple in structure, dismounting is easy to maintenance, the life-span is long, reliability is high, the advantage of good buffer effect and working stability, when the hydraulic cylinder operating mode changes, only need to change the cushion collar 1 that is fit to this operating mode, can reach equally good buffering effect, can save cost like this, increase work efficiency; Be specially adapted to heavy duty, at a high speed, working conditions change hydraulic cylinder frequently.
Claims (7)
1. a multi-damping-hole buffer sleeve hydraulic cylinder comprises cylinder body, piston and piston rod, it is characterized in that: have oil through six, oil through nine and oil through seven at the cylinder bottom place, oil through six and oil through nine are connected with valve piece on being installed in cylinder bottom by pipeline; Breeze way at cylinder body is equipped with cushion collar, has the seal groove of dress O RunddichtringO in cushion collar one side end face, and the opposite side of cushion collar contacts with end cap, and is tightly suppressed by cover; Cushion collar radially have a 3-12 damping hole that the aperture is different, the damping hole diameter is between the 1mm to 4mm, the centre distance between the damping hole is between 10mm-50mm; Be equipped with at logical hydraulic fluid port seven places and cushioned and the safety valve of overload protective function, and be equipped with and can make the oil hydraulic cylinder one-way valve rapidly that commutates, oil through seven is communicated with one-way valve and safety valve.
2. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 1 is characterized in that: open groove at the cushion collar cylindrical one along axial direction, and the groove closed at both ends, the groove end face is a rectangle, area is 6mm
2-12mm
2, groove communicates with logical hydraulic fluid port nine.
3. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 1 or 2 is characterized in that: described cushion collar is that copper material is made.
4. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 1, it is characterized in that: the buffer plunger termination that is positioned at the cushion collar of piston nose is taper shape, semi-cone angle is 3 °-6 °, length is for when buffer plunger runs to the end, and the fluid of buffer cavity communicates with the damping hole of cushion collar by logical hydraulic fluid port heptalateral.
5. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 4 is characterized in that: the matching gap between buffer plunger and the cushion collar is 0.1mm-0.15mm.
6. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 1 is characterized in that: logical hydraulic fluid port seven is connected with safety valve by pipeline or the valve piece that is contained in cylinder bottom, and when cushioning, the pressure of safety valve is adjusted between the 5MPa-25MPa; Logical simultaneously hydraulic fluid port seven is connected with one-way valve by pipeline or the valve piece that is contained in cylinder bottom, is convenient to feed pressure oil promotion hydraulic cylinder piston inverted running.
7. multi-damping-hole buffer sleeve hydraulic cylinder as claimed in claim 1 or 2, it is characterized in that: open seal groove at cushion collar by the end face of piston one side, load onto seal ring and open seal groove at cushion collar by the radial direction of end cap one side and load onto the seal ring that leaks when preventing to cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102783864A CN101907110B (en) | 2010-09-12 | 2010-09-12 | Multi-damping-hole buffer sleeve hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102783864A CN101907110B (en) | 2010-09-12 | 2010-09-12 | Multi-damping-hole buffer sleeve hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101907110A true CN101907110A (en) | 2010-12-08 |
| CN101907110B CN101907110B (en) | 2012-08-15 |
Family
ID=43262658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102783864A Active CN101907110B (en) | 2010-09-12 | 2010-09-12 | Multi-damping-hole buffer sleeve hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101907110B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094867A (en) * | 2011-03-28 | 2011-06-15 | 长安大学 | Buffer oil cylinder |
| CN102943788A (en) * | 2012-10-10 | 2013-02-27 | 太原双塔刚玉股份有限公司 | Composite rigid buffering cylinder for ladle receiving tray |
| CN103216486A (en) * | 2013-04-18 | 2013-07-24 | 湖南华菱湘潭钢铁有限公司 | Hydraulic cylinder |
| CN103233938A (en) * | 2013-05-06 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Tilt cylinder and concrete pump truck tilting mechanism |
| CN103452946A (en) * | 2013-09-05 | 2013-12-18 | 常州大学 | Novel hydraulic cylinder |
| CN113696205A (en) * | 2021-08-11 | 2021-11-26 | 李书阳 | Servo manipulator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410455Y (en) * | 2000-01-24 | 2000-12-13 | 詹丽华 | Damping hydraulic cylinder |
| CN2903588Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Super large diameter hydraulic cylinder |
| CN2903517Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Unconventional hydraulic cylinder displacement sensor |
| CN201330767Y (en) * | 2008-12-05 | 2009-10-21 | 韶关液压件厂有限公司 | Hydraulic cylinder of mechanical dustproof structure |
-
2010
- 2010-09-12 CN CN2010102783864A patent/CN101907110B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410455Y (en) * | 2000-01-24 | 2000-12-13 | 詹丽华 | Damping hydraulic cylinder |
| CN2903588Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Super large diameter hydraulic cylinder |
| CN2903517Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Unconventional hydraulic cylinder displacement sensor |
| CN201330767Y (en) * | 2008-12-05 | 2009-10-21 | 韶关液压件厂有限公司 | Hydraulic cylinder of mechanical dustproof structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094867A (en) * | 2011-03-28 | 2011-06-15 | 长安大学 | Buffer oil cylinder |
| CN102943788A (en) * | 2012-10-10 | 2013-02-27 | 太原双塔刚玉股份有限公司 | Composite rigid buffering cylinder for ladle receiving tray |
| CN102943788B (en) * | 2012-10-10 | 2015-01-28 | 太原双塔刚玉股份有限公司 | Composite rigid buffering cylinder for ladle receiving tray |
| CN103216486A (en) * | 2013-04-18 | 2013-07-24 | 湖南华菱湘潭钢铁有限公司 | Hydraulic cylinder |
| CN103233938A (en) * | 2013-05-06 | 2013-08-07 | 华菱星马汽车（集团）股份有限公司 | Tilt cylinder and concrete pump truck tilting mechanism |
| CN103233938B (en) * | 2013-05-06 | 2015-08-19 | 华菱星马汽车（集团）股份有限公司 | A kind of tilt cylinder and concrete mixer swing mechanism |
| CN103452946A (en) * | 2013-09-05 | 2013-12-18 | 常州大学 | Novel hydraulic cylinder |
| CN113696205A (en) * | 2021-08-11 | 2021-11-26 | 李书阳 | Servo manipulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101907110B (en) | 2012-08-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190510 Address after: 056000 No. 64 Rubber Road, Fuxing District, Handan City, Hebei Province Patentee after: Hebei Shaoyue Machinery Technology Co.,Ltd. Address before: 512027 No. 8, Shaonan Avenue, Shujiang District, Shaoguan City, Guangdong Province Patentee before: SHAOGUAN HYDRAULICS FACTORY CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A multi damping hole type buffer sleeve hydraulic cylinder Granted publication date: 20120815 Pledgee: Bank of China Limited by Share Ltd. Handan branch Pledgor: Hebei Shaoyue Machinery Technology Co.,Ltd. Registration number: Y2024980036035 |