CN205639433U - But laser welding's shock absorber piston rod assembly - Google Patents
But laser welding's shock absorber piston rod assembly Download PDFInfo
- Publication number
- CN205639433U CN205639433U CN201620438705.6U CN201620438705U CN205639433U CN 205639433 U CN205639433 U CN 205639433U CN 201620438705 U CN201620438705 U CN 201620438705U CN 205639433 U CN205639433 U CN 205639433U
- Authority
- CN
- China
- Prior art keywords
- piston
- ladder
- laser welding
- piston rod
- axial
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model creatively discloses a but laser welding's shock absorber piston rod assembly, has the piston rod, be equipped with in proper order along its axial direction on the piston rod restore restraint seat, restore the piece, piston, circulation piece, spring leaf, adjusting shim and planchet that the cover was equipped with the piston ring, it is cyclic annular for the ladder along its axial to recover the restraint seat, recover restraint seat cover dress at the non - user side of piston rod both piston end to adopt laser welding mode and piston rod to link together, through restoring the restraint seat to circulation piece, spring leaf, adjusting shim and planchet implementation axial constraint and exert the axial precompression. Through restoring the axial ladder shape of restraint seat, the ladder diameter is formed with the level restraint with the combination of difference in height to the axial warpage who restores the piece, makes to restore the piece and be formed with the changeable axial deformation rigidity of level, has both realized restoring the valve and is flow area and changed the complexity and have level control, and then simplified the complexity who restores the damping force timing.
Description
Technical field
The invention belongs to automobile vibration damper piston rod field, be specifically related to a kind of can the shock absorber piston rod of laser welding total
Become, specifically use the solderable damper piston-rod assembly that laser welding links together piston rod with piston and valve system.
Background technology
Damper piston-rod assembly includes piston rod, piston, recuperation valve system, resetting valve system etc., is the weight of shock absorber of automobile suspension
Wanting ingredient, therefore structure and the connected mode of piston-rod assembly has important impact to the performance of vibroshock.Present stage subtracts
Shake device produce time, piston, recuperation valve system, resetting valve system etc. are installed on piston rod, commonly used is threaded adding
Locking mode, its shortcoming is that piston rod " non-user end (both piston ends) " structure is complicated, can adjust and reduce especially for damping
Shake device hollow piston rod manufacture difficulty strengthen.It addition, the spring leaf that resetting valve system commonly used multi-disc thickness is different with diameter
Combine, thus the uncertainty of spring leaf combination adds the complexity of recovery damping force adjustment.
Summary of the invention
The invention purpose be to provide a kind of can the damper piston-rod assembly of laser welding, this piston-rod assembly can pass through laser
The mode of welding links together piston rod with piston and valve system, and this piston-rod assembly is specifically designed in shock absorber of automobile suspension.
By changing piston rod and piston and valve system attachment structure and using laser welding, simplify piston rod construction and Joining Technology；Pass through
Change the way of restraint restoring valve block, reduce resetting valve system number of parts, simplify the complexity of recovery damping force adjustment simultaneously.
The technical scheme that the invention is used is:
A kind of can the damper piston-rod assembly of laser welding, there is piston rod (1), along its axial direction on piston rod (1)
It is sequentially provided with recovery constraint seat (5), recovery sheet (4), is set with the piston (2) of piston ring (3), circulation sheet
(6), spring leaf (7), adjustment pad (8) and planchet (9)；Described recovery constraint seat (5) is axially ladder along it
Ring-type, described recovery constraint seat (5) is sleeved on non-user end both piston ends of piston rod, and uses laser welding mode and work
Stopper rod links together, by restoring constraint seat (5) to circulation sheet (6), spring leaf (7), adjustment pad (8) and circle
Pad (9) is implemented axial constraint and applies axial precompression.
Described a kind of can the damper piston-rod assembly of laser welding, described recovery constraint seat (5) is high-density iron-base powder
Metallurgical material restores constraint seat (5), and wherein the density of ferrous based powder metallurgical material is not less than 7.4g/cm3。
Described a kind of can the damper piston-rod assembly of laser welding, described piston (2) is ferrous based powder metallurgical material piston
(2)。
Described a kind of can the damper piston-rod assembly of laser welding, described recovery constraint seat (5) is axially step ladder circular ring shape
Structure, has four layers of flight, from the piston end of piston rod be followed successively by the first ladder (5.1), the second ladder (5.2),
Three ladders (5.3) and fourth order ladder (5.4), the external diameter of described first ladder (5.1) is Φ d1, the second ladder (5.2)
External diameter be Φ d2, the external diameter of the 3rd ladder (5.3) is Φ d3, fourth order ladder (5.4) external diameter be Φ d4, described Φ
d1>Φd2>Φd3>Φd4。
Described a kind of can the damper piston-rod assembly of laser welding, the height of described fourth order ladder (5.4) is h1, the 3rd
The height of ladder (5.3) is h2, and the height of the second ladder (5.2) is h3, described h3 > h2 > h1.
Resetting valve system flow area change complexity described can the damper piston-rod assembly of laser welding be had by a kind of utilization
Stage control method,
At the initial stage, retrained by restoring the circular surfaces of fourth order ladder (5.4) in constraint seat (5), restore sheet (4) in its two side pressure
The internal diameter in the effect lower generation buckling deformation region of power difference is Φ d4 with the external diameter of fourth order ladder (5.4), buckling deformation region
External diameter is for restoring the external diameter of sheet (4)；The amount allowing buckling deformation is limited by fourth order ladder (5.4) highly h1；
When restoring sheet (4) pressure at both sides difference and continuing to increase, restore the buckling deformation region of sheet (4) under the effect of pressure differential
Continuation is increased, by circular surfaces and fourth order ladder (5.4) constraint of the 3rd ladder (5.3), restores sheet (4) and produce warpage
The internal diameter of deformed region is Φ d3 with the external diameter of the 3rd ladder (5.3), and the external diameter in buckling deformation region is for restoring outside sheet (4)
Footpath；Allow the amount of buckling deformation by fourth order ladder (5.4) highly h1 and the limit of the 3rd ladder (5.3) highly h2 sum
System；
When restoring sheet (4) pressure at both sides difference and again continuing with increase, restore the buckling deformation region work in pressure differential of sheet (4)
Continuation is increased, by the circular surfaces of the second ladder (5.2), the 3rd ladder (5.3) and fourth order in former constraint seat (5) with lower
Ladder (5.4) constraint, the external diameter restoring same second ladder (5.2) of internal diameter that sheet (4) produces buckling deformation region is Φ d2,
The external diameter in buckling deformation region is the external diameter restoring sheet (4), it is allowed to the amount of buckling deformation is by fourth order ladder (5.4) highly
H1, the 3rd ladder (5.3) highly h2 and the restriction of the second ladder (5.2) highly h1 sum；By that analogy；
Finally utilize Elasticity and finite element analysis theoretical, it is achieved to have level to retrain to restoring sheet (4), make recovery sheet (4)
Being formed with the axial deformation rigidity that level is variable, both having realized resetting valve system flow area change complexity has a grade control, it is achieved to multiple
The adjustment of former damping force.
The invention has the advantages that
Restore constraint seat and use high-density iron-base powdered metallurgical material, both can simplify this piston-rod assembly structure, and can reduce again
Manufacturing cost；Using method for laser welding to be welded together with piston rod by recovery constraint seat, commissure is smooth, and welding quality is relatively
High, speed；Restoring constraint seat uses high-density iron-base powdered metallurgical material to be easily achieved axial step shape.
The axial buckling deformation restoring sheet is formed by the constraint seat that restores of axial step shape by the combination of step diameter with difference in height
There is level to retrain, make recovery sheet be formed with the axial deformation rigidity that level is variable, both realized resetting valve system flow area change complexity
There is a grade control, carry out simplifying the complexity of recovery damping force adjustment.The recovery constraint seat of axial step shape decreases recovery
The quantity of sheet is sent out by valve system, simplifies valve architecture, advantageously reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is that the invention is a kind of can the structural representation of damper piston-rod assembly of laser welding.
Fig. 2 is the structural representation restoring constraint seat shown in Fig. 1.
Detailed description of the invention
A kind of can the damper piston-rod assembly of laser welding, there is piston rod 1, axial along it on piston rod 1
Direction is sequentially provided with recovery constraint seat 5, recovery sheet 4, is set with the piston 2 of piston ring 3, circulation sheet 6, spring leaf 7, tune
Whole pad 8 and planchet 9；The described constraint seat 5 that restores is axially stepped annular along it, and described recovery constraint seat 5 is sleeved on piston
Non-user end both piston ends of bar, and use laser welding mode to link together with piston rod, so, by restoring constraint seat
5 pairs of circulation sheets 6, spring leaf 7, the adjustment parts such as pad 8 and planchet 9 are implemented axial constraint, and are the most axially arranged
Fix on the piston rod, circulation sheet 6, spring leaf 7, the adjustment parts such as pad 8 and planchet 9 are applied axial precompressed simultaneously
Power.And use method for laser welding, can reduce under the effect of Thermal Cycle, the heat affected area of weld seam 10 two layers of material
Scope, improves plasticity and the toughness at shock absorber piston rod weld seam 10 two ends, thus reduces weld defect.
Wherein piston and recovery constraint seat 5 all use material to be the powdered metallurgical material of iron-based, it is preferable that described recovery constraint seat
5 is that high-density iron-base powder metallurgy material restores constraint seat 5, and wherein the density of ferrous based powder metallurgical material is not less than
7.4g/cm3.Described piston 2 is ferrous based powder metallurgical material piston 2.Piston rod 1 uses material to be 45# steel.
As shown in Figure 2 it is further preferable that the described constraint seat 5 that restores is axially step ladder circular ring shape structure, there are four layers of flight,
It is followed successively by the first ladder the 5.1, second ladder the 5.2, the 3rd ladder 5.3 and fourth order ladder 5.4, institute from the piston end of piston rod
The external diameter stating the first ladder 5.1 is Φ d1, and the external diameter of the second ladder 5.2 is Φ d2, and the external diameter of the 3rd ladder 5.3 is Φ d3,
The external diameter of fourth order ladder 5.4 is Φ d4, described Φ d1 > Φ d2 > Φ d3 > Φ d4.The height of described fourth order ladder 5.4 is h1,
The height of the 3rd ladder 5.3 is h2, and the height of the second ladder 5.2 is h3, described h3 > h2 ＞ h1.
Restoring constraint seat 5 is axially stairstepping, and the axial buckling deformation restoring sheet is formed by step diameter with the combination of difference in height
There is level to retrain, make recovery sheet be formed with the axial deformation rigidity that level is variable, both realized resetting valve system flow area change complexity
There is a grade control, carry out simplifying the complexity of recovery damping force adjustment.As in figure 2 it is shown, the initial stage is by restoring constraint seat Φ d4 circle
The constraint on surface, restores sheet at the poor (p of its pressure at both sidesRight>pLeft) effect lower produce buckling deformation region be internal diameter be Φ d4,
External diameter is the annulus restoring sheet external diameter；The amount allowing deformation warpage is limited by restoring constraint seat h1；When restoring sheet two side pressure
Poor (the p of powerRight＞ pLeft) continue to increase, then continuation is increased by its deformation warpage, but due to the restriction of h1, then deformation is by multiple
The constraint of former constraint seat Φ d3 circular surfaces, deflection is limited by h1+h2 sum, and the region producing buckling deformation is internal diameter
For Φ d3, external diameter is the annulus restoring sheet external diameter；By that analogy (left and right is the left and right directions in diagram).
From Elasticity and finite element analysis theory, restore the complexity of the axial warpage of sheet and the close phase of ratio of its internal-and external diameter
Closing, both its deformation rigidity was the function of ratio of its internal-and external diameter, therefore can be realized by notch cuttype circular ring structure having restoring sheet
Level constraint so that it is be formed with the axial deformation rigidity that level is variable, both having realized resetting valve system flow area change complexity has level control
System, it is achieved the adjustment to recovery damping force.
Claims (5)
1. one kind can the damper piston-rod assembly of laser welding, it is characterised in that there is piston rod (1), piston rod
(1) it is sequentially provided with along its axial direction on and restores constraint seat (5), restore sheet (4), be set with the piston of piston ring (3)
(2), circulation sheet (6), spring leaf (7), adjustment pad (8) and planchet (9)；Described recovery retrains seat (5) edge
It is axially stepped annular, and described recovery constraint seat (5) is sleeved on non-user end both piston ends of piston rod, and uses laser
Welding manner links together with piston rod, by restoring constraint seat (5) to circulation sheet (6), spring leaf (7), adjustment
Pad (8) and planchet (9) are implemented axial constraint and apply axial precompression.
A kind of can the damper piston-rod assembly of laser welding, it is characterised in that described recovery
Constraint seat (5) is that high-density iron-base powder metallurgy material restores constraint seat (5), and wherein the density of ferrous based powder metallurgical material is not
Less than 7.4g/cm3。
A kind of can the damper piston-rod assembly of laser welding, it is characterised in that described piston
(2) it is ferrous based powder metallurgical material piston (2).
A kind of can the damper piston-rod assembly of laser welding, it is characterised in that described recovery
Constraint seat (5) is axially step ladder circular ring shape structure, has four layers of flight, is followed successively by the first ladder from the piston end of piston rod
(5.1), the second ladder (5.2), the 3rd ladder (5.3) and fourth order ladder (5.4), described first ladder (5.1)
External diameter be Φ d1, the external diameter of the second ladder (5.2) is Φ d2, and the external diameter of the 3rd ladder (5.3) is Φ d3, fourth order ladder
(5.4) external diameter is Φ d4, described Φ d1 > Φ d2 > Φ d3 > Φ d4.
A kind of can the damper piston-rod assembly of laser welding, it is characterised in that the described 4th
The height of ladder (5.4) is h1, and the height of the 3rd ladder (5.3) is h2, and the height of the second ladder (5.2) is h3,
Described h3 > h2 > h1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438705.6U CN205639433U (en) | 2016-05-16 | 2016-05-16 | But laser welding's shock absorber piston rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620438705.6U CN205639433U (en) | 2016-05-16 | 2016-05-16 | But laser welding's shock absorber piston rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639433U true CN205639433U (en) | 2016-10-12 |
Family
ID=57060552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620438705.6U Withdrawn - After Issue CN205639433U (en) | 2016-05-16 | 2016-05-16 | But laser welding's shock absorber piston rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736622A (en) * | 2016-05-16 | 2016-07-06 | 辽宁工业大学 | Laser welded shock absorber piston rod assembly |
-
2016
- 2016-05-16 CN CN201620438705.6U patent/CN205639433U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736622A (en) * | 2016-05-16 | 2016-07-06 | 辽宁工业大学 | Laser welded shock absorber piston rod assembly |
| CN105736622B (en) * | 2016-05-16 | 2017-10-10 | 辽宁工业大学 | It is a kind of can laser welding damper piston-rod assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6464053B1 (en) | Single piece piston | |
| CN101287926B (en) | Amplitude controlled orifice valving | |
| JP6417170B2 (en) | Shock absorber | |
| WO2016067724A1 (en) | Damper | |
| US20140262654A1 (en) | Two position valve with face seal and pressure relief port | |
| JP6482909B2 (en) | Vehicle suspension system | |
| JP5909557B2 (en) | Suspension device | |
| CN104603495B (en) | Multi-tuneable degressive valve | |
| JP2017180801A (en) | Shock absorber | |
| CN205639433U (en) | But laser welding's shock absorber piston rod assembly | |
| CN102888903A (en) | Sleeved viscous damper capable of damping variable parameters and design method thereof | |
| GB2520646A (en) | Regenerative hydraulic vibration damper | |
| JP2001208123A (en) | Hydraulic buffer | |
| JP2004150574A (en) | Damping force generation valve of hydraulic buffer | |
| CN105736622B (en) | It is a kind of can laser welding damper piston-rod assembly | |
| CN109983249A (en) | Frequency dependence damper | |
| US20100294606A1 (en) | Hydraulic shock absorbing apparatus of vehicle | |
| JP2000055103A (en) | Hydraulic shock absorber | |
| JP5798813B2 (en) | Shock absorber | |
| US3002741A (en) | Hydraulic damper | |
| CN104847827B (en) | Semi-active vehicle suspension intelligence friction cylinder vibroshock | |
| CN209012312U (en) | A kind of variation rigidity automobile torsion bar spring | |
| JP2017180607A (en) | Valve mechanism, attenuation force generation device and shock absorber | |
| US20050127587A1 (en) | Hydraulic shock absorbing apparatus of vehicle | |
| CN206874733U (en) | A kind of automobile-used Front fork vibration abatement system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20171010 |