CN218806094U - Novel structure of anti-breaking groove of inner steering pull rod based on rack and pinion steering gear - Google Patents
Novel structure of anti-breaking groove of inner steering pull rod based on rack and pinion steering gear Download PDFInfo
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- CN218806094U CN218806094U CN202222851490.9U CN202222851490U CN218806094U CN 218806094 U CN218806094 U CN 218806094U CN 202222851490 U CN202222851490 U CN 202222851490U CN 218806094 U CN218806094 U CN 218806094U
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Abstract
The utility model discloses a novel structure of disconnected groove is prevented to tie in steering based on rack and pinion steering gear, including the tie in steering, the outer pull rod that turns to, the one end of turning to the outer pull rod is seted up threaded hole, the tie in steering includes threaded rod, drag link, the drag link is close to the threaded rod end has been seted up and has been prevented disconnected groove, the tie in steering with the outer pull rod warp the threaded hole with threaded rod threaded connection, the diameter of threaded rod is greater than prevent the diameter of disconnected groove end. The utility model discloses a set up on the interior pull rod of turning to and prevent disconnected groove structure, when making the wheel receive external shock, the earlier deformation energy absorption of the disconnected groove of preventing of interior pull rod of turning to is unlikely to make the threaded rod fracture or rack and pinion meshing department fracture in the fixed vicinity of nut to avoid the vehicle to take place dangerously.
Description
Technical Field
The utility model relates to an automobile parts technical field specifically is a novel structure of disconnected groove is prevented to tie in steering based on rack and pinion steering gear.
Background
In order to prevent the steering failure caused by the breakage of the inner tie rod or the engagement part of the rack and pinion steering gear due to the violent collision of the wheels, the following two schemes are mainly adopted at present: (1) the strength of the steering inner pull rod is increased, so that the pull rod cannot be easily broken under the impact of external force; (2) the strength of the meshing part of the gear rack is greater than that of the inner steering pull rod, when the wheels collide violently, the pull rod at one end of each wheel is broken, the other end of each wheel is not impacted violently, the steering force can be transmitted continuously, the vehicle can run for a period of mileage continuously, and danger caused by instant failure of steering is avoided;
the above mode can solve the problem that when the wheels are in violent collision, the steering system cannot be failed instantaneously to cause danger. But all have certain drawbacks, although scheme (1) can solve the risk of breakage of the inner tie rod of the steering, the too high strength easily causes breakage of the meshing part of the gear and the rack, so that the steering is disabled and the vehicle is in danger; although the risk of steering failure can be avoided in scheme (2), but considering that the inner pull rod can not break because of little impact, certain intensity requirement should have during the design to make rack and pinion meshing department require bigger intensity, and then lead to the corresponding structural strength adaptability of steering gear to increase, cause the waste of design, the increase of cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel structure of an anti-breaking groove of an inner steering pull rod based on a rack and pinion steering gear, aiming at solving the problem of change, aiming at overcoming the defects existing in the prior art; the anti-breaking groove is designed on the inner steering pull rod and made of steel, when the impact force of a wheel is greater than the strength of the anti-breaking groove of the inner steering pull rod, the steel has better ductility, so that the anti-breaking groove can deform to absorb energy firstly when being subjected to larger impact, and cannot be broken instantly;
in order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a novel anti-breaking groove structure of an inner steering pull rod based on a rack and pinion steering gear,
the anti-breakage steering device comprises an inner steering pull rod and an outer steering pull rod, wherein a threaded hole is formed in one end of the outer steering pull rod, the inner steering pull rod comprises a threaded rod and a drag rod, the drag rod is close to the end of the threaded rod and is provided with an anti-breakage groove, the inner steering pull rod and the outer steering pull rod are in threaded connection with the threaded rod through the threaded hole, and the diameter of the threaded rod is larger than that of the anti-breakage groove.
Optionally, a nut is arranged between the inner tie rod and the outer tie rod, and the nut is used for fixing the inner tie rod and the outer tie rod together.
Optionally, the diameter of the threaded rod is smaller than the diameter of the tie rod end.
Optionally, the threaded rod with the drag link sets up to integrated into one piece structure, or the one end fixed weld of threaded rod sets up on one end of drag link.
Optionally, the diameter of the anti-breaking groove is set to be 10-12mm.
Optionally, the inner tie rod is provided as a 40Cr layer.
The utility model has the advantages that
The utility model discloses a set up on the interior pull rod of turning to and prevent disconnected groove structure, when making the wheel receive external shock, the earlier deformation energy absorption of the disconnected groove of preventing of interior pull rod of turning to is unlikely to make the threaded rod fracture or rack and pinion meshing department fracture in the fixed vicinity of nut to avoid the vehicle to take place dangerously.
Drawings
Fig. 1 is a sectional view of the structure of the present invention.
Description of the reference numerals: 1-steering inner pull rod, 2-steering outer pull rod, 3-threaded rod, 4-straight pull rod, 5-anti-breaking groove and 6-nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in figure 1, the utility model provides a novel structure of a steering inner pull rod anti-breaking groove based on a rack and pinion steering gear,
comprises an inner steering pull rod 1 and an outer steering pull rod 2, wherein one end of the outer steering pull rod 2 is provided with a threaded hole, the inner steering pull rod 1 comprises a threaded rod 3 and a drag link 4, the end of the drag link 4 close to the threaded rod 3 is provided with an anti-breaking groove 5, the inner steering pull rod 1 and the outer steering pull rod 2 are in threaded connection with the threaded rod 3 through the threaded hole, the diameter of the threaded rod 3 is larger than that of the end of the anti-breaking groove 5,
the utility model relates to a novel structure of a breaking-proof groove 5 of an inner steering pull rod 1 based on a rack and pinion steering gear, the structural schematic diagram of the inner steering pull rod 1 and an outer steering pull rod 2 is shown in figure 1, in the embodiment, the diameter of a straight pull rod 4 is phi 16.5mm, the diameter of the breaking-proof groove 5 is phi 11.6mm, and the diameter of a threaded rod 3 is phi 14mm, but the breaking-proof groove is not limited to the structure, and the breaking-proof groove can be set according to actual needs;
the inner steering pull rod 1 is connected with the outer steering pull rod 2 through threads and is fixed through a nut 6, the diameter of a threaded rod 3 is smaller than the diameter of the end of a straight pull rod 4 and larger than the diameter of an anti-breaking groove 5, when the threaded rod is impacted by external force, the nut 6 is used as a fulcrum, the stress is maximum near the threads, and when threads are machined, damage such as knife lines or cracks is easily generated, the threaded rod 3 is easily broken by using the nut 6 as the fulcrum, and in order to avoid breakage of the threaded rod 3, the diameter of the threaded rod 3 is larger than the diameter of the straight pull rod 4 of the anti-breaking groove 5, and cost reduction and weight reduction are considered at the same time, and the diameter of the threaded rod 3 is smaller than the diameter of the straight pull rod 4;
in order to avoid the first fracture of the threaded rod 3, the anti-fracture groove 5 is designed on the straight pull rod 4, the diameter of the anti-fracture groove is the smallest, the anti-fracture groove is the weakest part of the straight pull rod 4, the integral strength requirement of the steering gear is met, the anti-fracture groove is smaller than the strength of the meshing part of a gear rack, when the anti-fracture groove is impacted by a large external force, the anti-fracture groove deforms to absorb energy first, so that the meshing part of the threaded rod 3 and the gear rack is protected, the inner steering pull rod 1 is made of 40Cr, the anti-fracture groove has high strength, the strength of the inner steering pull rod 1 is guaranteed, the anti-fracture groove cannot be easily broken when the anti-fracture groove is impacted, and the strength of the steering gear is guaranteed; meanwhile, the wheel has certain ductility, so that the wheel cannot be immediately subjected to brittle fracture when being impacted, and the energy is absorbed through extrusion deformation;
threaded rod 3 with drag link 4 sets up to the integrated into one piece structure, perhaps the one end fixed weld of threaded rod 3 sets up drag link 4 is served, in this embodiment, threaded rod 3 with drag link 4 sets up to the integrated into one piece structure, and the integrated into one piece structure is convenient for provide holistic structural strength.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (4)
1. A novel structure of a steering inner tie rod anti-breaking groove based on a rack and pinion steering gear is characterized in that,
the anti-breakage steering device comprises an inner steering pull rod and an outer steering pull rod, wherein a threaded hole is formed in one end of the outer steering pull rod, the inner steering pull rod comprises a threaded rod and a drag rod, the drag rod is close to the end of the threaded rod and is provided with an anti-breakage groove, the inner steering pull rod and the outer steering pull rod are in threaded connection with the threaded rod through the threaded hole, and the diameter of the threaded rod is larger than that of the anti-breakage groove.
2. The novel structure of the inner tie rod breakage preventing groove of a rack and pinion steering gear according to claim 1,
and a nut is arranged between the inner steering pull rod and the outer steering pull rod and is used for fixing the inner steering pull rod and the outer steering pull rod together.
3. The novel structure of the inner tie rod breakage preventing groove of a rack and pinion steering gear according to claim 1,
the diameter of the threaded rod is smaller than that of the straight pull rod end.
4. The novel structure of the break-proof groove of the steering inner tie rod of the rack and pinion steering gear according to claim 1,
the threaded rod with the drag link sets up to integrated into one piece structure, perhaps the one end fixed weld of threaded rod sets up on the one end of drag link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851490.9U CN218806094U (en) | 2022-10-27 | 2022-10-27 | Novel structure of anti-breaking groove of inner steering pull rod based on rack and pinion steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851490.9U CN218806094U (en) | 2022-10-27 | 2022-10-27 | Novel structure of anti-breaking groove of inner steering pull rod based on rack and pinion steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218806094U true CN218806094U (en) | 2023-04-07 |
Family
ID=87039189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222851490.9U Active CN218806094U (en) | 2022-10-27 | 2022-10-27 | Novel structure of anti-breaking groove of inner steering pull rod based on rack and pinion steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218806094U (en) |
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2022
- 2022-10-27 CN CN202222851490.9U patent/CN218806094U/en active Active
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