CN205401574U - Hydraulic damper and piston assembly - Google Patents
Hydraulic damper and piston assembly Download PDFInfo
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- CN205401574U CN205401574U CN201620155571.7U CN201620155571U CN205401574U CN 205401574 U CN205401574 U CN 205401574U CN 201620155571 U CN201620155571 U CN 201620155571U CN 205401574 U CN205401574 U CN 205401574U
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Abstract
The utility model provides a hydraulic damper and piston assembly. Piston assembly includes: the piston body has the centre bore, ring outside having in centre bore first the ring on the first terminal surface of piston body and surrounding in first ring first, ring outside the second of ring in having in the second of centre bore the ring on the second terminal surface of piston body and surrounding the second, the piston body still has at least one first throttle pore and at least one second throttle pore, the first port in first throttle pore lies in first ring and its second port lies in second excircle intra -annular, the first port in second throttle pore lies in first excircle intra -annular and its second port lies in the second ring, first switching piece is established with the normal first port that seals first throttle pore on the first terminal surface of piston body, second switching piece is established with the normal second port that seals second throttle pore on the second terminal surface of piston body. According to the utility model discloses a piston assembly, few, the simple easy assembly of part.
Description
Technical field
This utility model relates to a kind of piston component and has the hydraulic buffer of this piston component.
Background technology
For ensureing that rail vehicle runs on the line safely and smoothly, existing rail vehicle, namely all widely used hydraulic buffer above such as EMU, rolling stock, light rail, subway carries out vibration damping, its Main Function is to reduce vehicle to be in operation from wheel to the vibration caused during with rail contact and impact, thus improving the comfortableness of safety, stationarity, economy and passenger that vehicle runs.
Hydraulic buffer operation principle be the negative work utilizing hydraulic oil viscosity resistance to do to absorb vibrational energy, its essence is exactly a damping element.When there being dynamic excitation, it plays buffering, absorbs and catabiotic effect, and the energy (such as heat energy) converting mechanical energy into other forms is dispersed in surrounding.It is provided with multiple damping hole and valve mechanism in hydraulic buffer, produces frictional damping effect when hydraulic oil flows back and forth in duct, absorb the vibrational energy of vehicle, thus reaching the purpose of decay vibration.
In correlation technique, the piston element of hydraulic buffer includes piston body, piston body is provided with one and above orifice valve, also has one and the above spring matched with orifice valve and adjusting nut.The hydraulic buffer of correlation technique, building block is more, structure relative complex, causes that efficiency of assembling is not high.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique at least to a certain extent.
For this, a purpose of the present utility model is in that to propose that a kind of building block is less, simple in construction, be easy to the piston component of assembling.
Another object of the present utility model is in that to propose a kind of hydraulic buffer with above-mentioned piston component.
nullAccording to piston component of the present utility model，Including: piston body，Described piston body has the centre bore axially through described piston body along described piston body，First end face of described piston body has annulus in first of the first port around described centre bore and in described first first outer toroid of annulus，Second end face of described piston body has annulus in second of the second port around described centre bore and in described second second outer toroid of annulus，Described piston body also has at least one first throttle duct and at least one second section discharge orifice road，First port at least one described first throttle duct is positioned at second port in described first annulus and at least one described first throttle duct and is positioned at described second outer toroid，First port at least one described second section discharge orifice road is positioned at second port in described first outer toroid and at least one described second section discharge orifice road and is positioned at described second annulus；For often closing the first opening and closing sheet of first port at least one described first throttle duct, described first opening and closing sheet is located on the first end face of described piston body；For often closing the second opening and closing sheet of second port at least one described second section discharge orifice road, described second opening and closing sheet is located on the second end face of described piston body.
According to piston component of the present utility model, building block is less, simple in construction, be easy to assembling.Hydraulic buffer according to piston component of the present utility model is installed, when piston component by the first end face of piston body towards piston body second end face motion time, the hydraulic oil of the second end face side being in piston body enters from second port in first throttle duct, wash the first opening and closing sheet open so that first port in first throttle duct is opened, enter eventually into the first end face side of piston body, meanwhile, the hydraulic oil of the second end face side of piston body can also make the second opening and closing sheet close second port in second section discharge orifice road more reliably；When piston component by the second end face of piston body towards piston body first end face motion time, the hydraulic oil of the first end face side being in piston body enters from first port in second section discharge orifice road, wash the second opening and closing sheet open so that second port in second section discharge orifice road is opened, enter eventually into the second end face side of piston body, meanwhile, the hydraulic oil of the first end face side of piston body can also make the first opening and closing sheet close first port in first throttle duct more reliably.
It addition, the piston component according to this utility model above-described embodiment can also have following additional technical characteristic:
Advantageously, in described first, in annulus and described second, annulus is arranged symmetrically with on described piston body, and described first outer toroid and described second outer toroid are arranged symmetrically with on described piston body.
Advantageously, the first end face of described piston body also has in the outer rim and described first of the first port of described centre bore the first bulge loop between the inner edge of annulus, the 3rd bulge loop of the second bulge loop between outer rim and the inner edge of described first outer toroid of annulus and the outer rim around described first outer toroid in described first；Second end face of described piston body also has in the outer rim and described second of the second port of described centre bore the 4th bulge loop between the inner edge of annulus, the 6th bulge loop of the 5th bulge loop between outer rim and the inner edge of described second outer toroid of annulus and the outer rim around described second outer toroid in described second.
Advantageously, described first bulge loop and described 4th bulge loop are arranged symmetrically with on described piston body, and described second bulge loop and described 5th bulge loop are arranged symmetrically with on described piston body, and described 3rd bulge loop and described 6th bulge loop are arranged symmetrically with on described piston body.
Advantageously, the height of described first bulge loop is lower than the height of the height of described second bulge loop and the described second bulge loop height lower than described 3rd bulge loop, and the height of described 4th bulge loop is lower than height lower than described 6th bulge loop of the height of described 5th bulge loop and the height of described 5th bulge loop.
Advantageously, the shape at least one described first throttle duct is identical with the shape in second section discharge orifice road at least one described, the shape of first port at least one described first throttle duct is identical with the shape of second port in second section discharge orifice road at least one described, and the shape of second port at least one described first throttle duct is identical with the shape of first port in second section discharge orifice road at least one described.
Advantageously, first port at least one described first throttle duct radial dimension on the first end face of described piston body is more than second port in first throttle duct radial dimension on the second end face of described piston body at least one described, and first port at least one described first throttle duct circumferential size on the first end face of described piston body is less than second port in first throttle duct circumferential size on the second end face of described piston body at least one described；First port at least one described second section discharge orifice road radial dimension on the first end face of described piston body is less than second port in second section discharge orifice road radial dimension on the second end face of described piston body at least one described, and first port at least one described second section discharge orifice road circumferential size on the first end face of described piston body is more than second port in second section discharge orifice road circumferential size on the second end face of described piston body at least one described.
Advantageously, the quantity in the quantity in described first throttle duct and described second section discharge orifice road is three, wherein, the circumferential uniform intervals of first port in three described first throttle ducts annulus along described first is arranged, second port in three described first throttle ducts is arranged along the circumferential uniform intervals of described second outer toroid, first port in three described second section discharge orifice roads is arranged along the circumferential uniform intervals of described first outer toroid, and the circumferential uniform intervals of the second port annulus along described second in three described second section discharge orifice roads is arranged.
Advantageously, described piston component also includes the first backup plate and the second backup plate, described first backup plate is connected with described first opening and closing sheet so that described first opening and closing sheet is against the first end face of described piston body, and described second backup plate is connected with described second opening and closing sheet so that described second opening and closing sheet is against the second end face of described piston body.
According to hydraulic buffer of the present utility model, including the piston component described in any of the above-described item.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the hydraulic buffer according to one embodiment of this utility model；
Fig. 2 is the close-up schematic view of A in Fig. 1；
Fig. 3 is the schematic diagram of the piston body of the hydraulic buffer according to one embodiment of this utility model；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the right view of Fig. 3.
Detailed description of the invention
Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
Below with reference to the accompanying drawings it is described in detail according to piston component of the present utility model.
As shown in Figures 1 to 5, according to piston component of the present utility model, including: piston body 100, the first opening and closing sheet 200 and the 3rd opening and closing sheet 300.
Specifically, piston body 100 has the centre bore 101 of axial (namely indicated about arrow as shown in Figure 3 direction) the through piston body 100 along piston body 100.
As shown in Figure 4, the first end face of piston body 100 has annulus 102 in first of the first port 1011 (i.e. the left port of centre bore 101 as shown in Figure 3) around centre bore 101 and in first first outer toroid 103 of annulus 102.
As it is shown in figure 5, the second end face of piston body 100 has annulus 104 in second of the second port 1012 (i.e. the right output port of centre bore 101 as shown in Figure 3) around centre bore 101 and in second second outer toroid 105 of annulus 104.
Piston body 100 also has at least one first throttle duct 106 and at least one second section discharge orifice road 107.First port 1061 (i.e. the left port in first throttle duct 106 as shown in Figure 3) at least one first throttle duct 106 is positioned at second port 1062 (i.e. the right output port in first throttle duct 106 as shown in Figure 3) in the first annulus 102 and at least one first throttle duct 106 and is positioned at the second outer toroid 105.First port 1071 at least one second section discharge orifice road 107 is positioned at second port 1072 in the first outer toroid 103 and at least one second section discharge orifice road 107 and is positioned at the second annulus 104.
First opening and closing sheet 200 is located on the first end face of piston body 100 for often closing first port 1061 at least one first throttle duct 106.
Second opening and closing sheet 300 is located on the second end face of piston body 100 for often closing second port 1072 at least one second section discharge orifice road 107.
According to piston component of the present utility model, building block is less, simple in construction, be easy to assembling.
According to a concrete example of the present utility model, in first, in annulus 102 and second, annulus 104 is arranged symmetrically with (as it is shown on figure 3, in first, in annulus 102 and second, annulus 104 is symmetrically arranged on piston body 100) on piston body 100.First outer toroid 103 and the second outer toroid 105 are arranged symmetrically with (as it is shown on figure 3, the first outer toroid 103 and the second outer toroid 105 are arranged symmetrically with on piston body 100) on piston body 100.
Advantageously, the shape at least one first throttle duct 106 is identical with the shape at least one second section discharge orifice road 107.The shape of first port 1061 at least one first throttle duct 106 is identical with the shape of second port 1072 at least one second section discharge orifice road 107.The shape of second port 1062 at least one first throttle duct 106 is identical with the shape of first port 1071 at least one second section discharge orifice road 107.Thus, it is possible to make the orifice size of piston body both sides identical, and then it is equal with recuperability to realize hydraulic buffer compression stress operationally.
Further, the quantity in first throttle duct 106 is three with the quantity in second section discharge orifice road 107.Wherein, the circumferential uniform intervals of the first port 1061 annulus 102 along first in three first throttle ducts 106 is arranged, second port 1062 in three first throttle ducts 106 is arranged along the circumferential uniform intervals of the second outer toroid 105.First port 1071 in three second section discharge orifice roads 107 is arranged along the circumferential uniform intervals of the first outer toroid 103, and the circumferential uniform intervals of the second port 1072 annulus 104 along second in three second section discharge orifice roads 107 is arranged.Thus, it is possible to it is equal with recuperability to realize hydraulic buffer compression stress operationally further.
According to embodiments more of the present utility model, first port 1061 at least one first throttle duct 106 radial dimension on the first end face of piston body 100 is more than radial dimension on the second end face of piston body 100 of second port 1062 at least one first throttle duct 106, and first port 1061 at least one first throttle duct 106 circumferential size on the first end face of piston body 100 is less than circumferential size on the second end face of piston body 100 of second port 1062 at least one first throttle duct 106.First port 1071 at least one second section discharge orifice road 107 radial dimension on the first end face of piston body 100 is less than radial dimension on the second end face of piston body 100 of second port 1072 at least one second section discharge orifice road 107, and first port 1071 at least one second section discharge orifice road 107 circumferential size on the first end face of piston body 100 is more than circumferential size on the second end face of piston body 100 of second port 1072 at least one second section discharge orifice road 107.
Further illustrate for first throttle duct 106 below.As shown in Figure 4, on the first end face of piston body 100, first port 1061 in first throttle duct 106 is general rectangular；As it is shown in figure 5, second port 1062 in first throttle duct 106 is also general rectangular.
So, above-mentioned " radial dimension " should be understood to rectangular width dimensions, and above-mentioned " circumferential size " should be understood to rectangular length dimension.From Fig. 4 and Fig. 5 it will be clear that, the width of first port 1061 in first throttle duct 106 is more than the width of second port 1062 in first throttle duct 106, and the length of first port 1061 in first throttle duct 106 is less than the length of second port 1062 in first throttle duct 106.The structure in second section discharge orifice road 107 is identical with the structure in first throttle duct 106, repeats no more here.Thus, it is possible to make piston body structure novel,
As shown in Figures 3 to 5, according to a specific embodiment of the present utility model, the first end face of piston body 100 also has in the outer rim and first of the first port 1011 of centre bore 101 the first bulge loop 108 between the inner edge of annulus 102, the 3rd bulge loop 110 of the second bulge loop 109 between outer rim and the inner edge of the first outer toroid 103 of annulus 102 and the outer rim around the first outer toroid 103 in first.Second end face of piston body 100 also has in the outer rim and second of the second port 1012 of centre bore 101 the 4th bulge loop 111 between the inner edge of annulus 104, the 6th bulge loop 113 of the 5th bulge loop 112 between outer rim and the inner edge of the second outer toroid 105 of annulus 104 and the outer rim around the second outer toroid 105 in second.
Advantageously, the first bulge loop 108 and the 4th bulge loop 111 are arranged symmetrically with (as it is shown on figure 3, the first bulge loop 108 and the 4th bulge loop 111 are symmetrically arranged on piston body 100) on piston body 100.Second bulge loop 109 and the 5th bulge loop 112 are arranged symmetrically with (as it is shown on figure 3, the second bulge loop 109 and the 5th bulge loop 112 are symmetrically arranged on piston body 100) on piston body 100.3rd bulge loop 110 and the 6th bulge loop 113 are arranged symmetrically with (as it is shown on figure 3, the 3rd bulge loop 110 and the 6th bulge loop 113 are symmetrically arranged on piston body 100) on piston body 100.
Further, the height of the first bulge loop 108 is lower than height lower than the 3rd bulge loop 110 of the height of the second bulge loop 109 and the height of the second bulge loop 109.As shown in Figure 3, with the first end face of piston body 100 for benchmark, the left surface of the first bulge loop 108 to the distance of the first end face of piston body 100 be the height of the first bulge loop 108, the second bulge loop 109 left surface to the distance of the first end face of piston body 100 be the height of the second bulge loop 109, the 3rd bulge loop 110 left surface to the height that distance is the 3rd bulge loop 110 of the first end face of piston body 100.
The height of the 4th bulge loop 111 is lower than height lower than the 6th bulge loop 113 of the height of the 5th bulge loop 112 and the height of the 5th bulge loop 112.As shown in Figure 3, with the second end face of piston body 100 for benchmark, the right surface of the 4th bulge loop 111 to the distance of the second end face of piston body 100 be the height of the 4th bulge loop 111, the 5th bulge loop 112 right surface to the distance of the second end face of piston body 100 be the height of the 5th bulge loop 112, the 6th bulge loop 113 right surface to the height that distance is the 6th bulge loop 113 of the second end face of piston body 100.
In other words, first bulge loop the 108, second bulge loop 109 and the 3rd bulge loop 110 constitute step on the first end face of piston body 100, so that the first opening and closing sheet 200 can often close first port 1061 in first throttle duct 106 better；4th bulge loop the 111, the 5th bulge loop 112 and the 6th bulge loop 113 constitute step on the second end face of piston body 100, so that the second opening and closing sheet 300 can often close second port 1072 in second section discharge orifice road 107 better.
Advantageously, as in figure 2 it is shown, described piston component also includes the first backup plate 400 and the second backup plate 500.First backup plate 400 is connected with the first opening and closing sheet 200 so that the first opening and closing sheet 200 is against the first end face of piston body 100.Second backup plate 500 is connected with the second opening and closing sheet 300 so that the second opening and closing sheet 300 is against the second end face of piston body 100.
According to hydraulic buffer of the present utility model, including the piston component described in any of the above-described item.
Specifically, piston cylinder 600 and piston rod 700 are included according to hydraulic buffer of the present utility model.The left end of piston rod 700 is connected with piston cylinder 600, is located at the right-hand member of piston rod 700 according to piston component of the present utility model.
More specifically, as depicted in figs. 1 and 2, first, first backup plate the 400, first opening and closing sheet 200, piston body the 100, second opening and closing sheet 300 and the second backup plate 500 are through successively the right-hand member of piston rod 700, are then fixed with nut 800.
In other words, being full of hydraulic oil in piston cylinder 600, the piston rod 700 with piston component inserts in piston cylinder 600, and piston cylinder 600 is divided into two parts space by piston component.Piston body 100 has first throttle duct 106 and second section discharge orifice to 107 so that the hydraulic oil in two parts space separated by piston component can complement each other.Damp and produce when having sticking hydraulic oil by first throttle duct 106 or second section discharge orifice road 107, and owing to the circulation area of piston body both sides is equal, it is possible to make hydraulic buffer operationally produced compression stress identical with recuperability.
Hydraulic buffer according to piston component of the present utility model is installed operationally, when piston component by the first end face of piston body towards piston body second end face motion time (motion from left to right as shown in Figure 3), the hydraulic oil of the second end face side being in piston body enters from second port in first throttle duct, wash the first opening and closing sheet open so that first port in first throttle duct is opened, enter eventually into the first end face side of piston body, simultaneously, the hydraulic oil of the second end face side of piston body can also make the second opening and closing sheet close second port in second section discharge orifice road more reliably.When piston component by the second end face of piston body towards the first end face motion of piston body time (right-to-left motion) as shown in Figure 3, the hydraulic oil of the first end face side being in piston body enters from first port in second section discharge orifice road, wash the second opening and closing sheet open so that second port in second section discharge orifice road is opened, enter eventually into the second end face side of piston body, meanwhile, the hydraulic oil of the first end face side of piston body can also make the first opening and closing sheet close first port in first throttle duct more reliably.
According to piston component of the present utility model, processing technology is simple, and assembly process is succinct, and precision is high, and cost is low, and production efficiency is high；Can meeting bullet train and the city railway vehicle characteristic requirements to vibroshock, good damping result, in vehicle operation, its property retention is highly stable, long service life.This product meets the job requirement to vibroshock of the modern railway vehicle, can reach good ideal effect during work, and damping regulates simple, convenient.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In description of the present utility model, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner.Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is illustrative of, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in scope of the present utility model, revises, replace and modification by those of ordinary skill in the art.
Claims (10)
1. a piston component, it is characterised in that including:
nullPiston body，Described piston body has the centre bore axially through described piston body along described piston body，First end face of described piston body has annulus in first of the first port around described centre bore and in described first first outer toroid of annulus，Second end face of described piston body has annulus in second of the second port around described centre bore and in described second second outer toroid of annulus，Described piston body also has at least one first throttle duct and at least one second section discharge orifice road，First port at least one described first throttle duct is positioned at second port in described first annulus and at least one described first throttle duct and is positioned at described second outer toroid，First port at least one described second section discharge orifice road is positioned at second port in described first outer toroid and at least one described second section discharge orifice road and is positioned at described second annulus；
For often closing the first opening and closing sheet of first port at least one described first throttle duct, described first opening and closing sheet is located on the first end face of described piston body；
For often closing the second opening and closing sheet of second port at least one described second section discharge orifice road, described second opening and closing sheet is located on the second end face of described piston body.
2. piston component according to claim 1, it is characterised in that in described first, in annulus and described second, annulus is arranged symmetrically with on described piston body, described first outer toroid and described second outer toroid are arranged symmetrically with on described piston body.
3. piston component according to claim 1 and 2, it is characterized in that the first end face of described piston body also having in the outer rim and described first of the first port of described centre bore the first bulge loop between the inner edge of annulus, the 3rd bulge loop of the second bulge loop between outer rim and the inner edge of described first outer toroid of annulus and the outer rim around described first outer toroid in described first；Second end face of described piston body also has in the outer rim and described second of the second port of described centre bore the 4th bulge loop between the inner edge of annulus, the 6th bulge loop of the 5th bulge loop between outer rim and the inner edge of described second outer toroid of annulus and the outer rim around described second outer toroid in described second.
4. piston component according to claim 3, it is characterized in that, described first bulge loop and described 4th bulge loop are arranged symmetrically with on described piston body, described second bulge loop and described 5th bulge loop are arranged symmetrically with on described piston body, and described 3rd bulge loop and described 6th bulge loop are arranged symmetrically with on described piston body.
5. piston component according to claim 3, it is characterized in that, the height of described first bulge loop is lower than the height of the height of described second bulge loop and the described second bulge loop height lower than described 3rd bulge loop, and the height of described 4th bulge loop is lower than height lower than described 6th bulge loop of the height of described 5th bulge loop and the height of described 5th bulge loop.
6. piston component according to claim 1, it is characterized in that, the shape at least one described first throttle duct is identical with the shape in second section discharge orifice road at least one described, the shape of first port at least one described first throttle duct is identical with the shape of second port in second section discharge orifice road at least one described, and the shape of second port at least one described first throttle duct is identical with the shape of first port in second section discharge orifice road at least one described.
7. piston component according to claim 6, it is characterized in that, first port at least one described first throttle duct radial dimension on the first end face of described piston body is more than second port in first throttle duct radial dimension on the second end face of described piston body at least one described, and first port at least one described first throttle duct circumferential size on the first end face of described piston body is less than second port in first throttle duct circumferential size on the second end face of described piston body at least one described；First port at least one described second section discharge orifice road radial dimension on the first end face of described piston body is less than second port in second section discharge orifice road radial dimension on the second end face of described piston body at least one described, and first port at least one described second section discharge orifice road circumferential size on the first end face of described piston body is more than second port in second section discharge orifice road circumferential size on the second end face of described piston body at least one described.
8. the piston component according to claim 1 or 6 or 7, it is characterized in that, the quantity in the quantity in described first throttle duct and described second section discharge orifice road is three, wherein, the circumferential uniform intervals of first port in three described first throttle ducts annulus along described first is arranged, second port in three described first throttle ducts is arranged along the circumferential uniform intervals of described second outer toroid, first port in three described second section discharge orifice roads is arranged along the circumferential uniform intervals of described first outer toroid, the circumferential uniform intervals of the second port annulus along described second in three described second section discharge orifice roads is arranged.
9. piston component according to claim 1, it is characterized in that, also include the first backup plate and the second backup plate, described first backup plate is connected with described first opening and closing sheet so that described first opening and closing sheet is against the first end face of described piston body, and described second backup plate is connected with described second opening and closing sheet so that described second opening and closing sheet is against the second end face of described piston body.
10. a hydraulic buffer, it is characterised in that include the piston component according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620155571.7U CN205401574U (en) | 2016-03-01 | 2016-03-01 | Hydraulic damper and piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620155571.7U CN205401574U (en) | 2016-03-01 | 2016-03-01 | Hydraulic damper and piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401574U true CN205401574U (en) | 2016-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620155571.7U Withdrawn - After Issue CN205401574U (en) | 2016-03-01 | 2016-03-01 | Hydraulic damper and piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546015A (en) * | 2016-03-01 | 2016-05-04 | 山东凌博瑞轨道交通科技有限公司 | Hydraulic shock absorber and piston assembly |
-
2016
- 2016-03-01 CN CN201620155571.7U patent/CN205401574U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546015A (en) * | 2016-03-01 | 2016-05-04 | 山东凌博瑞轨道交通科技有限公司 | Hydraulic shock absorber and piston assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20171226 |