CN209959702U - Lightweight distance rod bulb structure - Google Patents
Lightweight distance rod bulb structure Download PDFInfo
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- CN209959702U CN209959702U CN201920448953.2U CN201920448953U CN209959702U CN 209959702 U CN209959702 U CN 209959702U CN 201920448953 U CN201920448953 U CN 201920448953U CN 209959702 U CN209959702 U CN 209959702U
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- connecting rod
- ball head
- arc
- ball
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- 230000007704 transition Effects 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract description 4
- 235000011613 Pinus brutia Nutrition 0.000 abstract description 4
- 241000018646 Pinus brutia Species 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
A lightweight thrust rod ball head structure comprises a ball head shell, a connecting rod and a transition section for connecting the ball head shell and the connecting rod; the method is characterized in that: the connecting rod is provided with a corrugated structure, the corrugated structure consists of a plurality of concave parts with radian and a plurality of convex parts with radian, and the concave parts and the convex parts are alternately arranged on the connecting rod at intervals; the concave part is provided with a wave trough, and the convex part is provided with a wave crest; for each convex part, a first transition arc is arranged between the convex part and the adjacent concave part close to one side of the ball head shell, a second transition arc is arranged between the convex part and the adjacent concave part far away from one side of the ball head shell, and the radius of the first transition arc is smaller than that of the second transition arc. The utility model discloses a distance rod bulb structure can guarantee that sleeve pipe and bulb junction are difficult for taking place the pine and take off, and the sleeve pipe is inseparable with the connecting rod laminating, changes the shaping when riveting in the pressure, and connecting rod department is difficult for producing the fracture, and the reliability is higher, and life is longer.
Description
Technical Field
The utility model relates to a distance rod for car, concretely relates to distance rod bulb structure.
Background
The automobile thrust rod is widely applied to the heavy truck with a double-axle or multi-axle balanced suspension, is used for keeping the axle position relatively fixed, transmitting the longitudinal force and the transverse force of the truck, relieving the vibration and the impact caused by uneven road surfaces, and plays a vital role in the aspects of force transmission, limiting, vibration isolation, impact relieving and the like during the running of the truck.
At present, a common split type thrust rod is basically of a sleeve-ball head type structure, namely the thrust rod is composed of a sleeve, a ball head and a ball hinge, the ball head is composed of a ball head shell and a connecting rod, the sleeve and the ball head are connected in a hot-pressing riveting mode, so that in the existing thrust rod structure, a corrugated structure is usually arranged on the connecting rod, a trough is usually straight, a transition position between the trough and a crest does not have a circular arc chamfer, and the crest is of a symmetrical size. The corrugated structure has the defects that the pressing riveting is not beneficial to the close fit of the sleeve and the corrugation, and the loosening phenomenon between the sleeve and the ball head is easy to occur in the use process. In addition, the joint of the ball head shell and the connecting rod is usually in one-time arc transition, and the ball head shell is easy to be broken due to stress concentration under the condition of large-tonnage external load.
Disclosure of Invention
The utility model provides a lightweight distance rod bulb structure, sleeve pipe and bulb junction on its aim at solved current distance rod take place the pine easily and take off, reliable and bulb stress concentration's problem inadequately.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a thrust rod ball head structure comprises a ball head shell, a connecting rod and a transition section for connecting the ball head shell and the connecting rod; the connecting rod is provided with a corrugated structure, the corrugated structure consists of a plurality of concave parts with radian and a plurality of convex parts with radian, and the concave parts and the convex parts are alternately arranged on the connecting rod at intervals; the concave part is provided with a wave trough, and the convex part is provided with a wave crest; for each convex part, a first transition arc is arranged between the convex part and the adjacent concave part close to one side of the ball head shell, a second transition arc is arranged between the convex part and the adjacent concave part far away from one side of the ball head shell, and the radius of the first transition arc is smaller than that of the second transition arc.
The relevant content in the above technical solution is explained as follows:
1. in the scheme, the ball head shell is provided with a ball head inner hole for mounting the ball joint. The ball head is characterized in that a shaft shoulder is arranged on the hole wall of the ball head inner hole, a groove is formed in the hole wall of the ball head inner hole corresponding to the shaft shoulder, and an elastic check ring for fixing the ball hinge is arranged in the groove.
2. In the above aspect, the peak heights of the peaks of at least two convex portions are different for all the convex portions. That is, all the convex portions include a case where the peak heights of the peaks of the respective convex portions are different, and a case where the peak heights of the peaks of some of the convex portions are the same.
3. In the above aspect, the concave direction of the concave portion and the convex direction of the convex portion are based on the central axis of the connecting rod, the "concave" means toward the central axis of the connecting rod, and the "convex" means away from the central axis of the connecting rod.
Taking transverse wave as an example, the highest point of the protrusion is the peak, and the lowest point of the depression is the trough. Thus, the highest point of the projection in the male portion is the peak and the lowest point of the depression in the female portion is the valley.
4. In the scheme, one end of the transition section is provided with a first arc-shaped circular truncated cone, the other end of the transition section is provided with a second arc-shaped circular truncated cone, and the peripheral surfaces of the first arc-shaped circular truncated cone and the second arc-shaped circular truncated cone are both arc surfaces which are sunken towards the central shaft direction of the connecting rod; the first arc-shaped round platform is integrally connected with one end of the connecting rod, and the second arc-shaped round platform is integrally connected with the ball head shell, so that the transition section is used as a connecting part between the ball head shell and the connecting rod; the diameter of the cross section of the first arc-shaped round platform, which is connected with the connecting rod, is not smaller than the maximum outer diameter of the connecting rod, and in practice, the diameter of the cross section of the first arc-shaped round platform, which is connected with the connecting rod, is slightly larger than the maximum outer diameter of the connecting rod, so that the connecting rod and the transition section are riveted together.
5. In the above scheme, the connecting rod is a rod body, and the peripheral surface of the rod body is provided with a corrugated structure.
6. In the above scheme, the fixed assembly of the ball head structure and the sleeve can be realized by adopting a common hot riveting process in the prior art, that is, the connecting rod of the ball head structure is used for being matched and inserted with the sleeve of the thrust rod, and the connecting rod and the sleeve are in interference fit and riveted together by utilizing the hot riveting process.
7. In the above aspect, the corrugated structure is composed of a plurality of concave portions having a curvature and a plurality of convex portions having a curvature, where "a plurality" means at least three.
The utility model discloses for prior art's advantage lie in:
1. the utility model discloses a be equipped with the ripple structure on the connecting rod, be equipped with first transition circular arc and second transition circular arc between adjacent convex part and the concave part in the ripple structure, on the one hand more do benefit to the material in the pressure riveting production and fully warp, make sleeve pipe and connecting rod laminating inseparable, change the shaping when riveting in the pressure, on the other hand also can produce the pretightning force under the excessive pressure condition, improves distance rod performance, improves the qualification rate simultaneously, and the non-circular arc passes through and easily produces the crackle when excessive pressure.
2. The utility model discloses a radius of first transition circular arc is less than the radius of second transition circular arc among the ripple structure, and first transition circular arc looks steeper than second transition circular arc promptly, and when the distance rod was drawn and is taken off the power, first transition circular arc position atress was greater than second transition circular arc, forms type buckle structure, and it is big more to draw and takes off the power, and first transition circular arc is big more to sheathed tube locking force, is difficult for the pine to take off more.
3. The utility model discloses a ripple structure on the connecting rod is asymmetric structure, and the peak height that has the crest of two convex parts at least in the ripple structure is different promptly, is difficult for taking off in the use, and the reliability is higher, and life is longer.
4. The utility model discloses a both ends of connecting the changeover portion of bulb casing and connecting rod are equipped with first arc round platform and second arc round platform respectively, and the outer peripheral face of two arc round platforms is the cambered surface sunken towards the center pin direction of connecting rod, and such design does benefit to and reduces stress concentration, makes the whole atress of bulb even. Of course, the transition section can be regarded as being composed of multiple sections of round tables, so that demolding during ball head forging or casting molding is facilitated, and the service life of the mold is prolonged.
In a word, the utility model discloses a distance rod bulb structure can guarantee that sleeve pipe and bulb junction are difficult for taking place the pine and take off, and the sleeve pipe is inseparable with the connecting rod laminating, changes the shaping when riveting in the pressure, and connecting rod department is difficult for producing the fracture, and the reliability is higher, and life is longer.
Drawings
FIG. 1 is a perspective view of the ball head structure of the thrust rod of the present invention;
FIG. 2 is a schematic structural view of a connecting rod in the ball head structure of the thrust rod of the present invention;
FIG. 3 is a schematic structural view of the ball joint structure of the thrust rod of the present invention with a ball pivot;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a side view of the ball head structure of the thrust rod of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at I;
fig. 7 is a partial enlarged view of the section ii in fig. 5.
In the above drawings: 1. a ball head housing; 2. a connecting rod; 3. an inner hole of the ball head; 4. a groove; 5. a transition section; 6. a first transition arc; 7. a second transition arc; 8. spherical hinge; 9. a shaft shoulder; 10. a circlip; 11. a concave portion; 12. a male portion; 13. a first arc-shaped circular truncated cone; 14. a second arc round table.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): lightweight distance rod bulb structure
Referring to fig. 1 to 7, the thrust rod ball structure is composed of a ball housing 1, a connecting rod 2, and a transition section 5 connecting the ball housing 1 and the connecting rod 2; and a ball head inner hole 3 for mounting a ball joint 8 is formed in the ball head shell 1. The ball head inner hole 3 is characterized in that a shaft shoulder 9 is arranged on the hole wall of the ball head inner hole 3, a groove 4 is arranged on the hole wall of the ball head inner hole 3 corresponding to the shaft shoulder 9, and an elastic retainer ring 10 used for fixing a ball hinge 8 is arranged in the groove 4. As shown in fig. 4, when the ball hinge 8 is installed, the ball hinge 8 is placed from one side until the ball hinge abuts against the shaft shoulder 9, then the elastic retainer ring 10 is pressed in, the elastic retainer ring 10 enters the groove 4, the ball hinge 8 is fixed in a limiting manner from two ends, and the ball hinge 8 is prevented from being separated.
The connecting rod 2 is provided with a corrugated structure, the corrugated structure consists of a plurality of concave parts 11 with radian and a plurality of convex parts 12 with radian, and the concave parts 11 and the convex parts 12 are alternately arranged on the connecting rod 2 at intervals; the concave part 11 is provided with wave troughs, and the convex part 12 is provided with wave crests; for each convex part 12, a first transition circular arc 6 is arranged between the convex part 12 and the adjacent concave part 11 close to one side of the ball head shell 1, a second transition circular arc 7 is arranged between the convex part 12 and the adjacent concave part 11 far from one side of the ball head shell 1, and the radius of the first transition circular arc 6 is smaller than that of the second transition circular arc 7. The peaks of at least two of the convex portions 12 have different peak heights for all of the convex portions 12.
A first arc-shaped round table 13 is arranged at one end of the transition section 5, a second arc-shaped round table 14 is arranged at the other end of the transition section 5, and the peripheral surfaces of the first arc-shaped round table 13 and the second arc-shaped round table 14 are both arc surfaces which are sunken towards the direction of the central shaft of the connecting rod 2; the first arc-shaped round platform 13 is integrally connected with one end of the connecting rod 2, and the second arc-shaped round platform 14 is integrally connected with the ball head shell 1, so that the transition section 5 is used as a connecting part between the ball head shell 1 and the connecting rod 2; the diameter of the cross section of the first arc-shaped round platform 13 connected with the connecting rod 2 is not less than the maximum outer diameter of the connecting rod 2.
Explanation of the examples:
1. "the peak heights of at least two peaks of the convex portions 12 are different for all the convex portions 12", which excludes the case where the peak heights of the peaks of all the convex portions 12 are the same, that is, the case where the conventional corrugated structure is symmetrical.
2. The concave direction of the concave portion 11 and the convex direction of the convex portion 12 are based on the central axis of the tie rod 2, "concave" means toward the central axis of the tie rod 2, and "convex" means away from the central axis of the tie rod 2. The highest point of the projection in the convex portion 12 is the peak, and the lowest point of the depression in the concave portion 11 is the valley. The central axis of the tie rod 2 means the central axis in the longitudinal direction of the tie rod 2.
3. In practice, the diameter of the cross section of the first rounded frustum 13, which is connected to the connecting rod 2, is slightly larger than the maximum outer diameter of the connecting rod 2, so that the connecting rod 2 and the transition section 5 are more adaptive and easier to weld together.
4. The fixed assembly of the ball head structure and the sleeve of the embodiment can be realized by adopting a common hot riveting process in the prior art, that is, the connecting rod 2 of the ball head structure is used for being matched and inserted with the sleeve of the thrust rod, and the connecting rod 2 and the sleeve are in interference fit and riveted together by utilizing the hot riveting process.
5. The corrugated structure is composed of a plurality of concave portions 11 having a curvature and a plurality of convex portions 12 having a curvature, wherein "plurality" means at least three, and "plurality" means broadly, for the corrugated structure, the connecting rod 2 has a plurality of concave portions 11 and convex portions 12.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A lightweight thrust rod ball head structure comprises a ball head shell (1), a connecting rod (2) and a transition section (5) for connecting the ball head shell (1) and the connecting rod (2); the method is characterized in that: the connecting rod (2) is provided with a corrugated structure, the corrugated structure is composed of a plurality of concave parts (11) with radian and a plurality of convex parts (12) with radian, and the concave parts (11) and the convex parts (12) are alternately arranged on the connecting rod (2) at intervals; the concave part (11) is provided with a wave trough, and the convex part (12) is provided with a wave crest; for each convex part (12), a first transition circular arc (6) is arranged between the convex part (12) and the adjacent concave part (11) close to one side of the ball head shell (1), a second transition circular arc (7) is arranged between the convex part (12) and the adjacent concave part (11) far away from one side of the ball head shell (1), and the radius of the first transition circular arc (6) is smaller than that of the second transition circular arc (7).
2. The lightweight thrust rod ball structure of claim 1, wherein: the ball head shell (1) is provided with a ball head inner hole (3) for installing a ball hinge (8).
3. The lightweight thrust rod ball structure of claim 2, wherein: the ball head is characterized in that a shaft shoulder (9) is arranged on the hole wall of the ball head inner hole (3), a groove (4) is arranged on the hole wall of the ball head inner hole (3) corresponding to the shaft shoulder (9), and an elastic retainer ring (10) used for fixing the ball hinge (8) is arranged in the groove (4).
4. The lightweight thrust rod ball structure of claim 1, wherein: the peaks of at least two of the convex portions (12) have different peak heights for all of the convex portions (12).
5. The lightweight thrust rod ball structure of claim 1, wherein: one end of the transition section (5) is provided with a first arc-shaped round table (13), the other end of the transition section (5) is provided with a second arc-shaped round table (14), and the peripheral surfaces of the first arc-shaped round table (13) and the second arc-shaped round table (14) are both arc surfaces which are sunken towards the direction of the central axis of the connecting rod (2); the first arc-shaped round platform (13) is integrally connected with one end of the connecting rod (2), and the second arc-shaped round platform (14) is integrally connected with the ball head shell (1), so that the transition section (5) is used as a connecting part between the ball head shell (1) and the connecting rod (2); the diameter of the cross section of the first arc-shaped circular truncated cone (13) connected with the connecting rod (2) is not less than the maximum outer diameter of the connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920448953.2U CN209959702U (en) | 2019-04-03 | 2019-04-03 | Lightweight distance rod bulb structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920448953.2U CN209959702U (en) | 2019-04-03 | 2019-04-03 | Lightweight distance rod bulb structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959702U true CN209959702U (en) | 2020-01-17 |
Family
ID=69241760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920448953.2U Expired - Fee Related CN209959702U (en) | 2019-04-03 | 2019-04-03 | Lightweight distance rod bulb structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959702U (en) |
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2019
- 2019-04-03 CN CN201920448953.2U patent/CN209959702U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 |