CN101907110B - Multi-damping-hole buffer sleeve hydraulic cylinder - Google Patents
Multi-damping-hole buffer sleeve hydraulic cylinder Download PDFInfo
- Publication number
- CN101907110B CN101907110B CN2010102783864A CN201010278386A CN101907110B CN 101907110 B CN101907110 B CN 101907110B CN 2010102783864 A CN2010102783864 A CN 2010102783864A CN 201010278386 A CN201010278386 A CN 201010278386A CN 101907110 B CN101907110 B CN 101907110B
- Authority
- CN
- China
- Prior art keywords
- oil
- hole
- damping
- hydraulic cylinder
- cushion collar
- 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
Images
Landscapes
- Actuator (AREA)
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 providedwith 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 workefficiency, 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 base, its movement velocity slowed down, and until zero-speed, in order to avoid impact cylinder head and cylinder base, 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 4m/s speeds; 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 existing technology, the present invention provide 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, the 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 base place; Oil through six and oil through nine are connected with valve piece on being installed in cylinder base through pipeline, at the breeze way of cylinder body cushion collar are housed, and have the seal groove of adorning the 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.
Said cushion collar is that copper material is processed.
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 through pipeline or the valve piece that is contained in cylinder base, 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 through pipeline or the valve piece that is contained in cylinder base, is convenient to feed pressure oil promotion hydraulic cylinder piston inverted running.
Lean on the end face of piston one side to open seal groove at cushion collar, load onto seal ring and lean on the radial direction of end cap one side to open seal groove at cushion collar 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 material manufacture, 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 through 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 through pipeline or the valve piece that is contained on the cylinder base, and safety valve pressure can be chosen between 5MPa-25MPa;
6, change when the oil hydraulic cylinder operating mode, when shock-absorbing capacity is had demands of different, can change the cushion collar that adapts to its working condition requirement, can save cost like this, increase work efficiency.
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 base, 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
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Referring to Fig. 1; A kind of multi-damping-hole buffer sleeve hydraulic cylinder mainly comprises cylinder body 15, piston 12, piston rod 17, guide sleeve, cylinder head, cylinder base 11, Sealing, valve piece, safety valve 14 and one-way valve 13, has oil through 66, oil through 99 and oil through 77 at cylinder base 11 places; Oil through 66 and oil through 99 are connected with valve piece on being installed in cylinder base 11 through pipeline; Breeze way at cylinder body 15 is equipped with cushion collar 1, and cushion collar 1 one side end faces have the seal groove of dress O RunddichtringO, and 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, and 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 at cushion collar 1 cylindrical one along axial direction, 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 lean on the damping hole 2 of end cap 8 one sides to flow to groove 3 through cushion collar 1 to 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 oil hydraulic cylinder operating mode changes, only need to change the cushion collar 1 that is fit to this operating mode, can reach good cushioning effect equally; Can save cost like this, increase work efficiency; Be specially adapted to heavy duty, at a high speed, the frequent oil hydraulic cylinder of working conditions change.
Claims (7)
1. multi-damping-hole buffer sleeve hydraulic cylinder; Comprise 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 base place, oil through six and oil through nine are connected with valve piece on being installed in cylinder base through 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; The safety valve of buffering and overload protective function has been housed at oil through seven places, and has been equipped with and can makes 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 oil through nine.
3. according to claim 1 or claim 2 multi-damping-hole buffer sleeve hydraulic cylinder, it is characterized in that: said cushion collar is that copper material is processed.
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 leans on the damping hole of oil through heptalateral to communicate with cushion collar.
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: oil through seven is connected with safety valve through pipeline or the valve piece that is contained in cylinder base, and when buffering, the pressure of safety valve is adjusted between the 5MPa-25MPa; Simultaneously oil through seven is connected with one-way valve through pipeline or the valve piece that is contained in cylinder base, is convenient to feed pressure oil promotion hydraulic cylinder piston inverted running.
7. according to claim 1 or claim 2 multi-damping-hole buffer sleeve hydraulic cylinder; It is characterized in that: lean on the end face of piston one side to open seal groove at cushion collar, load onto seal ring and lean on the radial direction of end cap one side to open seal groove at cushion collar 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 CN101907110A (en) | 2010-12-08 |
| CN101907110B true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094867B (en) * | 2011-03-28 | 2013-04-17 | 长安大学 | Buffer oil cylinder |
| 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 |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410455Y (en) * | 2000-01-24 | 2000-12-13 | 詹丽华 | Damping 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 |
| CN2903588Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Super large diameter hydraulic cylinder |
| 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 |
| CN2903517Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Unconventional hydraulic cylinder displacement sensor |
| CN2903588Y (en) * | 2006-04-28 | 2007-05-23 | 韶关液压件厂有限公司 | Super large diameter hydraulic cylinder |
| CN201330767Y (en) * | 2008-12-05 | 2009-10-21 | 韶关液压件厂有限公司 | Hydraulic cylinder of mechanical dustproof structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101907110A (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907110B (en) | Multi-damping-hole buffer sleeve hydraulic cylinder | |
| CN102410270B (en) | Turning gradient control valve | |
| CN101324245B (en) | Hydraulic cylinder of low friction force | |
| CN202132304U (en) | High-pressure oil cylinder with combined buffering device in rodless cavity | |
| CN204308654U (en) | A kind of main shaft is forged a knife oil cylinder | |
| CN202560686U (en) | Long-stroke buffering cylinder | |
| CN203146480U (en) | Rod-less cavity side buffer structure for hydraulic cylinder | |
| CN203614510U (en) | Hydraulic buffering oil cylinder | |
| CN201836139U (en) | Hydraulic cylinder, hydraulic buffering system, excavator and concrete pump truck | |
| CN104493604A (en) | Double-piston spindle tool unclamping force removing oil cylinder | |
| CN102221025A (en) | Air floating type friction-free cylinder | |
| CN101963168A (en) | Hydro-cylinder for performing buffering by using floating one-way valve sheet | |
| CN202194883U (en) | Air-float zero-friction air cylinder | |
| CN202718966U (en) | Hydraulic oil cylinder buffering sleeve | |
| CN205533530U (en) | Throttle buffering hydro -cylinder with at bottom of integral type cushioned cylinder | |
| WO2006114048A1 (en) | A cushion mehanism in a hydraulic piston cylinder | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN201843851U (en) | Hydraulic oil cylinder with improved buffering effect | |
| CN210422457U (en) | Piston suspension type down-the-hole hammer with static pressure support | |
| CN201843858U (en) | Hydraulic oil cylinder using floating one-way valve plate for cushioning | |
| CN204413711U (en) | A kind of double-piston main shaft is forged a knife and is unloaded power cylinder | |
| CN210412367U (en) | DIN603 bolt mould | |
| CN103148040B (en) | Automatic flow regulating valve for load conversion hydraulic system | |
| CN201565809U (en) | Lathe clamping cylinder oil distributor | |
| CN203230653U (en) | Double-acting rapid hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 Hydraulic Plant Co., Ltd. |