CN208169403U - A kind of subway high-precision shock absorber piston device - Google Patents
A kind of subway high-precision shock absorber piston device Download PDFInfo
- Publication number
- CN208169403U CN208169403U CN201820728161.6U CN201820728161U CN208169403U CN 208169403 U CN208169403 U CN 208169403U CN 201820728161 U CN201820728161 U CN 201820728161U CN 208169403 U CN208169403 U CN 208169403U
- Authority
- CN
- China
- Prior art keywords
- annular groove
- ring annular
- sealing ring
- piston body
- face
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of subway high-precision shock absorber piston devices,Including piston body,Interior ring annular groove and outer ring annular groove,The interior ring annular groove and outer ring annular groove are respectively positioned on piston body upper end face and outer ring annular groove is located on the outside of interior ring annular groove,The piston body side surface is provided with groove,Sealing ring is fixedly connected on the outside of the piston body,Protrusion is provided on the inside of the sealing ring,The protrusion is fixedly connected on inside grooves,Cavity is offered inside the sealing ring,The interior ring annular groove upper end face is provided with No.1 throttle orifice,The outer ring annular groove upper end face is provided with No. two throttle orifices,No. two throttle orifice sides are connected to by recirculation hole with cavity,The utility model is fluted and raised by being arranged,When being installed to sealing ring,Protrusion is put into groove,To which effectively sealing ring be fixed,It effectively avoids sealing ring and falls problem when moving up and down.
Description
Technical field
The utility model relates to shock absorber piston, specially a kind of subway high-precision shock absorber piston device.
Background technique
Subway is a kind of form of railway transportation, refers to the City Rail Transit System based on running in underground, i.e. subway
The abbreviation in road or subway.Many such systems consider construction and operation costs to cooperate the environment of build, can be in city
Area changes into ground or overhead section other than center.It is said from professional angle, the difference of light rail and subway, is not in the sky and ground
Under, and it is its rail weight and maximum section passenger flow：60 kilograms every meter of rail weight is hereinafter, 1.5 ten thousand to 30,000 person-times of the volume of the flow of passengers per hour
It is light rail；60 kilograms every meter of rail weight or more, it is subway 30,000 to 60,000 person-times of the volume of the flow of passengers per hour, and damper is as subway
Important component, damper mainly have hydraulic and two kinds of inflation from this angular divisions of the material of generation damping, and it is variable that there are also one kind
The damper of damping.Damper is mainly used to inhibit concussion when rebounding after spring shock-absorbing and impact from road surface.Passing through
When uneven road surface, although shock-absorbing spring can filter the vibration on road surface, spring itself also has reciprocating motion, and damper is just
It is for inhibiting this spring to jump.Damper is too soft, vehicle body will vertical bounce, damper can bring about very much too big firmly
Resistance interferes spring to work normally.In the retrofit process about suspension, hard damper will mutually be taken with hard spring
Match, and the hardness of spring and car weight are closely bound up, therefore heavier vehicle generally uses harder damper.Crankshaft phase is shaken with drawing
The device connect, for the torsional shaking for the crankshaft that contends with, and the piston inside damper is the important component of damper.
But the sealing ring of existing shock absorber piston is easy to appear abrasion in long-time work up and down, to cause
Piston and piston cylinder generate gap, thus reduce the using effect of damper, and when oil liquid passes through throttle orifice, over time
It is be easy to cause throttle orifice face deformation, seriously reduces the damping force of damper.For this purpose, it is proposed that a kind of subway high-precision
Shock absorber piston device.
Utility model content
The purpose of this utility model is to provide a kind of subway high-precision shock absorber piston devices, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of subway high-precision shock absorber piston
Device, including piston body, interior ring annular groove and outer ring annular groove, the interior ring annular groove and the equal position of outer ring annular groove
In piston body upper end face and outer ring annular groove is on the outside of interior ring annular groove, and the piston body side surface is provided with recessed
Slot, the piston body outside are fixedly connected with sealing ring, are provided with protrusion on the inside of the sealing ring, the protrusion is fixedly connected on
Inside grooves offer cavity inside the sealing ring, and the interior ring annular groove upper end face is provided with No.1 throttle orifice, institute
It states outer ring annular groove upper end face and is provided with No. two throttle orifices, No. two throttle orifice sides are connected by recirculation hole and cavity
It is logical.
Preferably, the No.1 throttle orifice and No. two throttling hole end surfaces are respectively provided with shape in the arc-shaped.
Preferably, piston body upper end face center is provided with pilot hole.
Preferably, the protrusion and groove are the protrusion to match and groove.
Compared with prior art, the utility model has the beneficial effects that：
1. the utility model is fluted and raised by being arranged, when being installed to sealing ring, protrusion is put into recessed
In slot, so that effectively sealing ring be fixed, effectively avoids sealing ring and fall problem when moving up and down.
2. the utility model is by being internally provided with cavity in sealing ring, when sealing ring uses for a long time to wear,
Oil liquid is flowed to recirculation hole by No. two throttle orifices and is flowed in cavity, so that sealing ring expands outwardly, to make sealing ring
It is fitted closely with piston cylinder, to ensure that the using effect of piston.
3. the utility model is effectively subtracted by the way that No.1 throttle orifice and No. two throttling hole end surfaces are respectively provided with shape in the arc-shaped
Resistance and impact of the small oil liquid to No.1 throttle orifice and No. two throttle orifices, and avoid No.1 throttle orifice and No. two throttle orifices
Face deformation problem.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model schematic cross-sectional view.
In figure：1 piston body, 2 No.1 throttle orifices, ring annular groove, 4 No. two throttle orifices, 5 outer ring annular grooves, 6 dresses in 3
Distribution, 7 sealing rings, 8 recirculation holes, 9 protrusions, 10 grooves, 11 cavitys.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2,：A kind of subway high-precision shock absorber piston dress
It sets, including piston body 1, interior ring annular groove 3 and outer ring annular groove 5, the interior ring annular groove 3 and outer ring annular groove 5
It is respectively positioned on 1 upper end face of piston body and outer ring annular groove 5 is located at interior 3 outside of ring annular groove, 1 side surface of piston body is set
It is equipped with groove 10, sealing ring 7 is fixedly connected on the outside of the piston body 1, protrusion 9 is provided on the inside of the sealing ring 7, it is described convex
It plays 9 to be fixedly connected on inside groove 10, cavity 11, interior 3 upper end face of ring annular groove is offered inside the sealing ring 7
It is provided with No.1 throttle orifice 2, outer 5 upper end face of ring annular groove is provided with No. two throttle orifices 4, No. two throttle orifices 4
Side is connected to by recirculation hole 8 with cavity 11.
Further, the No.1 throttle orifice 2 and No. two 4 end faces of throttle orifice are respectively provided with shape in the arc-shaped, effective to reduce
Resistance and impact of the oil liquid to No.1 throttle orifice 2 and No. two throttle orifices 4, and avoid No.1 throttle orifice 2 and No. two throttlings
4 face deformation problem of hole.
Further, the 1 upper end face center of piston body is provided with pilot hole 6, and pilot hole 6 carries out piston rod
Installation.
Further, described raised 9 and groove 10 are the protrusion 9 to match and groove 10, convenient for protrusion 9 to be fixedly mounted
Inside groove 10.
Specifically, protrusion 9 is put into groove 10, when being installed to sealing ring 7 thus effectively to sealing ring
7 are fixed, and effectively avoid sealing ring 7 and fall problem when moving up and down, and when 7 long-time of sealing ring is using grinding
When damage, oil liquid is flowed to recirculation hole 8 by No. two throttle orifices 4 and is flowed in cavity 11, so that sealing ring 7 expands outwardly, from
And fit closely sealing ring 7 with piston cylinder, to ensure that the using effect of piston, and by No.1 throttle orifice 2 and No. two
4 end face of throttle orifice is respectively provided with shape in the arc-shaped, effectively reduces oil liquid to the resistance of No.1 throttle orifice 2 and No. two throttle orifices 4
With impact, and No.1 throttle orifice 2 and No. two 4 face deformation problems of throttle orifice are avoided.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of subway high-precision shock absorber piston device, including piston body (1), interior ring annular groove (3) and outer ring annular
Groove (5), the interior ring annular groove (3) and outer ring annular groove (5) are respectively positioned on piston body (1) upper end face and outer ring annular
Groove (5) is located on the outside of interior ring annular groove (3), it is characterised in that：Fluted (10) are arranged in piston body (1) side surface,
It is fixedly connected with sealing ring (7) on the outside of the piston body (1), raised (9), the protrusion is provided on the inside of the sealing ring (7)
(9) it is internal to be fixedly connected on groove (10), is offered cavity (11) inside the sealing ring (7), the interior ring annular groove (3)
Upper end face is provided with No.1 throttle orifice (2), and outer ring annular groove (5) upper end face is provided with No. two throttle orifices (4), institute
No. two throttle orifice (4) sides are stated to be connected to by recirculation hole (8) with cavity (11).
2. a kind of subway according to claim 1 high-precision shock absorber piston device, it is characterised in that：The No.1 section
Discharge orifice (2) and No. two throttle orifice (4) end faces are respectively provided with shape in the arc-shaped.
3. a kind of subway according to claim 1 high-precision shock absorber piston device, it is characterised in that：The piston body
(1) upper end face center is provided with pilot hole (6).
4. a kind of subway according to claim 1 high-precision shock absorber piston device, it is characterised in that：The protrusion
It (9) is the protrusion (9) to match and groove (10) with groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728161.6U CN208169403U (en) | 2018-05-16 | 2018-05-16 | A kind of subway high-precision shock absorber piston device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728161.6U CN208169403U (en) | 2018-05-16 | 2018-05-16 | A kind of subway high-precision shock absorber piston device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169403U true CN208169403U (en) | 2018-11-30 |
Family
ID=64366943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820728161.6U Expired - Fee Related CN208169403U (en) | 2018-05-16 | 2018-05-16 | A kind of subway high-precision shock absorber piston device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169403U (en) |
-
2018
- 2018-05-16 CN CN201820728161.6U patent/CN208169403U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |