CN209305276U - A kind of press-fitting combined hollow ball pin axis - Google Patents
A kind of press-fitting combined hollow ball pin axis Download PDFInfo
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- CN209305276U CN209305276U CN201822264503.6U CN201822264503U CN209305276U CN 209305276 U CN209305276 U CN 209305276U CN 201822264503 U CN201822264503 U CN 201822264503U CN 209305276 U CN209305276 U CN 209305276U
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- press
- ball pin
- pin axis
- spherical shell
- central siphon
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Abstract
The utility model discloses a kind of press-fitting combined hollow ball pin axis, the especially ball pin axis of automotive suspension distance rod, press-fitting combined hollow ball pin axis is made of internal central siphon and the spherical shell being wrapped in the middle part of central siphon, and spherical shell is hollow, and spherical shell near press-fit is on the step on tubulose axle surface.Hollow sphere pin shaft provided by the utility model has preferable light weight effect compared to solid construction ball pin axis, and structure can pass through die forming on ordinary press, and manufacturing method is simple, reduces manufacturing cost, improves stock utilization.
Description
Technical field
The utility model relates to the metal ball pin shafts of automotive suspension flexural pivot, in particular to commercial vehicle equalizing type of suspension distance rod
Ball pin axis.
Background technique
Distance rod is applied on all kinds of commercial vehicles, engineering truck and the special-purpose vehicle with equalizing type of suspension, and lifting force is divided into
Bar and lower thrust rod are primarily subjected to because of the push-pull effort for drawing, braking between balance doube bridge and vehicle frame, and are risen because turning to road surface
Additional potential, compressive load and torsional moment caused by vehicle bridge spatial position change caused by lying prostrate, to constrain the limit of vehicle bridge
Position guarantees that wheel is in correct track when vehicle driving.Distance rod is by shaft, head and is press-fitted to key inside head
Thrust rod ball hinge or propulsion rod joint are constituted.Thrust rod ball hinge or connector by intermediate metal ball pin and are wrapped in outside
Elastomeric material and the end cap of two sides are constituted, and are generally divided into: joint bearing type flexural pivot and package rubber or polyurethane elastomer
The connector class flexural pivot of class, the former cooperates with bowl-shape oscillating bearing by the spherical surface of ball pin and allows to be freely rotated in a certain range,
The latter allows certain to rock rotation by the flexible deformation of rubber or polyurethane elastomer class material.Thrust rod ball hinge or connector
The metal ball pin of inside and the intensity and fatigue performance for being wrapped in ball pin or ball bowl upper elastic body.Traditional ball pin manufacturing method
It generally forges, is unitary solid structure, it is difficult to meet automotive light weight technology increasingly higher demands.
Summary of the invention
Hollow sphere pin shaft has preferable weight loss effect, but hollow structure brings manufacture difficult, and the utility model discloses one
Kind press-fitting combined hollow ball pin axis, can achieve good light weight effect, reduces the cost of part.
The technical solution of the utility model press-fitting combined hollow ball pin axis are as follows: by internal central siphon and be wrapped in central siphon
The spherical shell in portion is constituted, and the middle part of central siphon is thicker than both sides, forms two steps, and there is tang at the both ends of central siphon；Spherical shell is hollow, and spherical shell is tight
On the close step for being press-fitted to tubulose axle surface.
Further, the spherical shell is that seamless pipe both ends are closed up and glomeration.
Further, spherical shell and central siphon pass through heat treatment reinforcement processing.
The utility model has the advantages that hollow sphere pin shaft structure provided by the utility model has preferably gently compared to solid construction ball pin axis
Quantification effect, hollow pipe fitting can pass through die forming on ordinary press, reduce manufacturing cost, improve material use
Rate.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the press-fitting combined hollow ball pin axis embodiment of the utility model.
Fig. 2 is another schematic cross-sectional view of the press-fitting combined hollow ball pin axis embodiment of the utility model.
Fig. 3 is a kind of process flow diagram of manufacturing method of the press-fitting combined hollow ball pin axis of the utility model.
Fig. 4 product form between a kind of process of manufacturing method of the press-fitting combined hollow ball pin axis of the utility model
Change schematic diagram.
Fig. 5 is a kind of process flow diagram of manufacturing method of the press-fitting combined hollow ball pin axis of the utility model.
Fig. 6 product form between a kind of process of manufacturing method of the press-fitting combined hollow ball pin axis of the utility model becomes
Change schematic diagram.
It is as shown in the figure: 1, central siphon, 2, spherical shell.
Specific embodiment
It is practical to this below in conjunction with attached drawing in order to keep the purpose of this utility model, technical solution and advantage clearer
It is novel to be described in further detail, it is clear that described embodiment is only the utility model some embodiments, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work
Under the premise of all other embodiment obtained, fall within the protection scope of the utility model.
From in Fig. 1 and Fig. 2 it can be seen that press-fitting combined hollow ball pin axis is by internal central siphon and wraps up the ball in the middle part of it
Shell 2 is constituted, and the middle part of central siphon is thicker than both sides, forms two steps, and there is flat portion at the both ends of central siphon；Spherical shell is hollow, and spherical shell is closely pressed
On the step for fitting over tubulose axle surface；Central siphon is hollow structure, can be shaped using seamless pipe, generally squeeze manufacture；Spherical shell 2
To be spherical, inner hollow, oral area cooperates at the step of central siphon 1 respectively, due to the blocking of step, constrains spherical shell 2 and avoids it de-
Out, central siphon 1 and spherical shell 2 can be combined into entirety well.
Since ball pin axis needs to bear very big load in use, in order to further increase between central siphon 1 and spherical shell 2
Bond strength can take the method for welding to fuse together the two in 2 oral area of spherical shell.
Its material of the forming requirements of central siphon 1 and spherical shell 2 has relatively good plasticity, can using 45 steel or 40Cr or
42CrMo material obtains relatively good structural state by appropriate the pre-heat treatment, reduces yield strength, plasticity is improved, with advantageous
In forming；Heat treatment reinforcement is carried out after forming, its intensity can be improved, and meets the requirement of product strength.
As shown in figure 3, simultaneously as shown in connection with fig. 4, the central siphon and package being press-fitted inside combined hollow ball pin axis are on the outside
The spherical shell at middle part is all made of seamless pipe blanking forming, the pre-heat treatment appropriate can be carried out, to improve its plasticity, central siphon shell
After part squeezes flat forming two procedures by axial pressure undergauge preform and shaft end, it is configured to step, the central siphon with flat portion；It
Spherical shell blank pipe fitting and shaped central siphon semi-finished product are put into mold and are press-fitted afterwards, makes its tight interference at step
Cooperation, then drilling or punching are carried out to both ends tang part, more high-intensitive press-fitting group is obtained eventually by bulk heat treatmet
Box-like hollow sphere pin shaft finished product；Its process part processing is successively are as follows: pipe fitting after seamless tubular goods original blank, undergauge squeezes tubulose after flat shaping
The press-fitting combined type after hollow sphere pin shaft semi-finished product, brill (punching) hole after axis, the bit combination of tubulose axle and spherical shell blank, press-fitting
Hollow sphere pin shaft.Since the tang width of some model ball pin axis is greater than ball pin collar diameter, spherical shell forming is caused to there is barrier
Hinder, the flat forming of squeezing of tang part can be placed on press-fitting progress later.
The press-fitting combined hollow ball pin axis obtained by the above process, can further weld in spherical shell and central siphon junction
It is connected in one.
The press-fitting combined hollow ball pin axis obtained shown in Fig. 3, can carry out heat treatment reinforcement, integral quenching or surface
Quenching.
It is possible to further use central siphon elder generation heat treatment reinforcement, the process sequence being then press-fitted again, and using can be in mould
Quenching strengthening material does spherical shell, and completes to quench in mould in press-fitting, and process flow is as shown in Fig. 5.Spherical shell can be selected
Boracic has the micro alloyed steel for comparing high-hardenability containing niobium, is heated to austenitizing temperature, protects in spherical shell necking rear mold
Pressure, quenching strengthening, the martensitic structure of available high intensity, to make the spherical shell after press-fitting that there is high intensity
Process part processing as shown in Fig. 6 is successively are as follows: pipe fitting after seamless tubular goods original blank, undergauge squeezes the pipe after flat shaping
Shape axis bores the central siphon after (punching) hole and heat treatment, the press-fitting of drop stamping necking quenching strengthening in the bit combination of spherical shell blank, mould
Combined hollow ball pin axis.
Manufacture ball pin axis is forged relative to tradition, there are structure provided by the utility model raw material to save significant effect,
Process is short, consuming little energy, it is easy to accomplish the remarkable advantage of automatic batch production.
A kind of press-fitting combined hollow ball pin axis and manufacturing method is presented above, it will be appreciated by those skilled in the art that
It is the processes such as tube extrusion, heat treatment, the utility model specific embodiment can not carry out this all to enumerate, and
Specific implementing process and parameter have no effect on the realization of the utility model embodiment, thus the utility model embodiment to this not
Restriction is given, the citing of the above preferred implementation also should not be construed as limiting the uniqueness of the utility model embodiment.
Claims (2)
1. a kind of press-fitting combined hollow ball pin axis, it is characterized in that: by internal central siphon and the spherical shell structure being wrapped in the middle part of central siphon
At the middle part of central siphon is thicker than both sides, forms two steps, and there is tang at the both ends of central siphon；Spherical shell is hollow, and spherical shell near press-fit is in pipe
On the step on shape axis surface.
2. a kind of press-fitting combined hollow ball pin axis according to claim 1, it is characterized in that: the spherical shell is seamless pipe two
It closes up and glomeration at end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264503.6U CN209305276U (en) | 2018-12-31 | 2018-12-31 | A kind of press-fitting combined hollow ball pin axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264503.6U CN209305276U (en) | 2018-12-31 | 2018-12-31 | A kind of press-fitting combined hollow ball pin axis |
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| Publication Number | Publication Date |
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| CN209305276U true CN209305276U (en) | 2019-08-27 |
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| CN201822264503.6U Active CN209305276U (en) | 2018-12-31 | 2018-12-31 | A kind of press-fitting combined hollow ball pin axis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501543A (en) * | 2018-12-31 | 2019-03-22 | 湖北汽车工业学院 | A kind of press-fitting combined hollow ball pin axis and manufacturing method |
-
2018
- 2018-12-31 CN CN201822264503.6U patent/CN209305276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501543A (en) * | 2018-12-31 | 2019-03-22 | 湖北汽车工业学院 | A kind of press-fitting combined hollow ball pin axis and manufacturing method |
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