CN202646515U - Improved structure of internal pressure cylinder of oil buffer - Google Patents
Improved structure of internal pressure cylinder of oil buffer Download PDFInfo
- Publication number
- CN202646515U CN202646515U CN 201220240469 CN201220240469U CN202646515U CN 202646515 U CN202646515 U CN 202646515U CN 201220240469 CN201220240469 CN 201220240469 CN 201220240469 U CN201220240469 U CN 201220240469U CN 202646515 U CN202646515 U CN 202646515U
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- oilhole
- cylinder pressure
- buffer
- interior cylinder
- oil
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Abstract
The utility model relates to an improved structure of an internal pressure cylinder of an oil buffer, which is in a cylindrical structure with openings on both ends, wherein the wall of one end of the cylindrical structure is provided with more than two oil holes, and the centers of all the oil holes are on the same straight line; the oil holes have the same size, and the distances between the oil holes are equal; and the axial section of each oil hole is an isosceles trapezoid.
Description
Technical field
The utility model belongs to the vibration damper field, refers to that especially the cylinder pressure structural reform is advanced structure in a kind of hydraulic buffer.
Background technique
Hydraulic buffer is a kind of impact kinetic energy to be converted into hydraulic oil heat energy, realizes the linear a kind of hydraulic pressure installation that slows down and finally steadily stop of object.
In the decompression field, spring, rubber, cylinder buffering the movable object stroke initial stage with minimum linear continuing, along with increasing its reaction force, stroke also strengthens gradually, when stroke approaches end, reaction force also reaches the peak, be temporarily stored because the moving object energy can't be absorbed, moving object finally produces greatly bounce-back inevitably, causes mechanical failure.The existing damper that uses is as damping device, but damper is in the defective of oilhole system aspects, can moving object moment be stopped with the peak reaction force at the damping stroke initial stage, causes great mechanical shock, and then damper slowly slides into end of travel again.
The hydraulic buffer that now uses is from being subject to needing a period of time to realize when impacting of power is steady, this result just cause at short notice repeatedly the buffer function of percussion movement can't realize that the buffer time of namely how to dwindle buffer is the utility model technical issues that need to address.
The hydraulic buffer that now uses mainly is to rely on the interior cylinder pressure body of buffer to be provided with oilhole, when carrying out cushion task, oil in the interior cylinder pressure body enters pressure accumulater by oilhole, by the long-term test to buffer, the oilhole of cylinder pressure body all has relation to the buffer time of buffer and the power of vibrations in finding.
There is following defective in existing oilhole, namely when buffer receives from the beginning of bump, the pressure that oil in the buffer is subject to is maximum, and when oil spread to pressure accumulater by oilhole, oilhole also can have an inhibition to oil, slow down pressure accumulater to the absorption of Impact energy, when piston rod outwards shook, oil was when the inside cylinder pressure body of oil-through hole returns, because of the reason of power, can not make oil all return interior cylinder pressure body, the power absorption of impact buffering next time.
The model utility content
The purpose of this utility model is by the improvement to cylinder pressure body structure in the existing hydraulic buffer, can realize linear slow down and with soft strength with stably stop motion of moving object and shorten the stationary time of buffer.
The cylinder pressure structural reform is advanced structure in a kind of hydraulic buffer, and cylinder body is the cylindrical structure of a both ends open, has plural oilhole on described cylinder one end wall, being centered close on the same straight line of described each oilhole; Oilhole on the described interior cylinder pressure body is 3-9, and the big or small spacing of described oilhole is identical; Described oilhole axial cross section is isosceles trapezoid, is positioned at the limit of pressure outer wall of cylinder block greater than the length of side of inwall, and described hole wall and interior cylinder pressure axon heart line are wired to 30 degree angles with oilhole center and the interior cylinder pressure axon heart.
Described oilhole is circular or square.
As further improvement, the optimal selection of oilhole quantity is 5.
The beneficial effects of the utility model are:
By a plurality of oilholes on the interior cylinder pressure body are set, the cushion effect of a fixed size can be provided to piston rod, reach linear purpose of slowing down, can moving object steadily be stopped enough soft strength.
Description of drawings
Fig. 1, plan view of the present utility model;
The axial, cross-sectional view of cylinder pressure body in Fig. 2, the utility model.
Embodiment
Describe concrete technological scheme of the present utility model in detail below in conjunction with accompanying drawing, specific embodiment of the utility model only is exemplary, can only be used for explaining the utility model and can not be interpreted as to be to restriction of the present utility model.
As shown in the figure, the utility model is achieved through the following technical solutions:
The cylinder pressure structural reform is advanced structure in a kind of hydraulic buffer, and cylinder body 11 is the cylindrical structure of a both ends open, has plural oilhole 12 on described cylinder one end wall, being centered close on the same straight line of described each oilhole; Oilhole on the described interior cylinder pressure body is 3-9, and the big or small spacing of described oilhole 12 is identical; Described oilhole axial cross section is isosceles trapezoid, is positioned at the limit of pressure outer wall of cylinder block greater than the length of side of inwall, and described hole wall and interior cylinder pressure axon heart line are wired to 30 degree angles with oilhole center and the interior cylinder pressure axon heart.
Described oilhole is circular or square.
As further improvement, the optimal selection of oilhole quantity is 5.
Described oilhole end is positioned at the cylinder pressure body and is installed near the pressure accumulater end, when rammer cushion at collision piston setting in motion, the initial movement of piston rod is apart from maximum, then the move distance of piston rod becomes geometrical progression to reduce, until buffer is steady, because initial piston rod movement distance is large, the kinetic energy of accepting is also maximum, these energy are that oil pressure absorbs fast by a plurality of oilholes that are arranged on the interior cylinder pressure body with kinetic transformation, and when Rebound, have again more oil be added back in the cylinder pressure body, be beneficial to the next time impact of piston rod, like this so that buffer can be realized buffer function with relatively soft strength, and dwindle buffer time.
Oilhole on the described interior cylinder pressure body is 3-9, and optimal selection is 5, and the big or small spacing of described oilhole is identical.The oilhole of selecting in the present embodiment is 5, in other embodiment of the present utility model, can select 3 to 9 different oilholes according to the compensator or trimmer pressure scope of hydraulic buffer.
According to the technological scheme of present embodiment, the stroke of described hydraulic buffer has 8mm, 10mm, 16mm, 20mm, 25mm, 50mm, 60mm, the differences such as 75mm.
So that 5 oilholes to be arranged on the interior cylinder pressure body, piston rod stroke 8mm is example, the each energy-absorbing of the hydraulic buffer that now uses is 4Nm, when steady, need about 30 second time, and after using the technical program to improve, be take 8mm stroke hydraulic buffer as example equally, average each energy-absorbing is 16Nm, wherein first absorbed energy is about 20Nm-36Nm, needs 5 seconds-10 second time when hydraulic buffer is steady.Oilhole quantity on the interior cylinder pressure body is inversely proportional to the stationary time of hydraulic buffer, but be not that oilhole can infinitely increase, by repeatedly test, when the oilhole quantity on the interior cylinder pressure body surpasses 9, the stationary time of buffer increases and on the contrary in whole buffering course, vibrations increase, and can't accomplish soft buffering.This mainly is because when the oilhole quantity on the interior cylinder pressure body is too much, although the energy that can absorb when particularly clashing into for the first time when the bump beginning is higher, but the oil mass that enters pressure accumulater by oilhole is too much, reducing can appear in the oil mass in the interior cylinder pressure body, when the Second Wave of bump, can endergonic oil mass reduce, therefore buffer can occur and when the Second Wave of bump, may without the generation of cushioning effect, affect cushioning effect.
The above only is the specific descriptions to technical solutions of the utility model, and those skilled in the art can improve according to the technical program certainly, and these improvement should be considered in the protection domain of the present utility model.
Claims (3)
1. the cylinder pressure structural reform is advanced structure in the hydraulic buffer, and cylinder body is the cylindrical structure of a both ends open, it is characterized in that: have plural oilhole on described cylinder one end wall, being centered close on the same straight line of described each oilhole; Oilhole on the described interior cylinder pressure body is 3-9, and the big or small spacing of described oilhole is identical; Described oilhole axial cross section is isosceles trapezoid, is positioned at the limit of pressure outer wall of cylinder block greater than the length of side of inwall, and described hole wall and interior cylinder pressure axon heart line are wired to 30 degree angles with oilhole center and the interior cylinder pressure axon heart.
2. the interior cylinder pressure structural reform of described a kind of hydraulic buffer is advanced structure according to claim 1, it is characterized in that: described oilhole is for circular or square.
3. the interior cylinder pressure structural reform of described a kind of hydraulic buffer is advanced structure according to claim 1, and it is characterized in that: described oilhole quantity is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240469 CN202646515U (en) | 2012-05-22 | 2012-05-22 | Improved structure of internal pressure cylinder of oil buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240469 CN202646515U (en) | 2012-05-22 | 2012-05-22 | Improved structure of internal pressure cylinder of oil buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646515U true CN202646515U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220240469 Expired - Fee Related CN202646515U (en) | 2012-05-22 | 2012-05-22 | Improved structure of internal pressure cylinder of oil buffer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202646515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504121A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | High sensitivity vibration damper with adjustable damping |
-
2012
- 2012-05-22 CN CN 201220240469 patent/CN202646515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504121A (en) * | 2017-09-28 | 2017-12-22 | 浙江路得坦摩汽车部件股份有限公司 | High sensitivity vibration damper with adjustable damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |