CN220639996U - Lower shaft of pure electric vehicle power-assisted steering device - Google Patents
Lower shaft of pure electric vehicle power-assisted steering device Download PDFInfo
- Publication number
- CN220639996U CN220639996U CN202321749416.4U CN202321749416U CN220639996U CN 220639996 U CN220639996 U CN 220639996U CN 202321749416 U CN202321749416 U CN 202321749416U CN 220639996 U CN220639996 U CN 220639996U
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- Prior art keywords
- spline
- fixedly connected
- shaft
- electric vehicle
- pure electric
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- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 239000002103 nanocoating Substances 0.000 claims abstract description 8
- 239000011195 cermet Substances 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005524 ceramic coating Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Power Steering Mechanism (AREA)
Abstract
The utility model discloses a lower shaft of a pure electric vehicle power-assisted steering device, which comprises a first locking piece, wherein the lower end of the first locking piece is fixedly connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a dust cover, the lower end of the connecting rod is fixedly connected with a fixing structure, the front inner wall of the fixing structure is connected with a fixing column, the outer wall of the fixing column is connected with a connector, the lower end of the connector is connected with a spline shaft, the outer wall of the spline shaft is connected with spline teeth, the outer wall of the spline teeth is connected with a nano coating, the outer wall of the spline shaft, which is close to one side of the spline teeth, is connected with a radiation heat dissipation coating, and the outer wall of the spline shaft, which is close to one side of the radiation heat dissipation coating, is connected with an auxiliary spline.
Description
Technical Field
The utility model relates to the technical field of power-assisted steering gears, in particular to a lower shaft of a power-assisted steering gear of a pure electric vehicle.
Background
The booster is a control device for automobile by means of compressed air and high-pressure oil, etc. to achieve the purpose of light use, taking the booster type servo braking system as an example, and is characterized by that the control device of the servo system uses a brake pedal mechanism to directly control, its output force is acted on a hydraulic main cylinder to pressurize the main cylinder oil together with pedal force, and this is different from "booster type" servo braking system, its "booster type" servo braking system is characterized by that the brake pedal mechanism controls the main cylinder, the hydraulic pressure outputted by main cylinder is transferred to auxiliary cylinder, and controls the servo system, the output force of the servo system and main cylinder hydraulic pressure are acted on auxiliary cylinder together, and the hydraulic pressure outputted by auxiliary cylinder to wheel cylinder is far higher than main cylinder hydraulic pressure.
However, the lower shaft of the electric booster used at present has poor road feel, and particularly, the steering wheel is rapidly rotated, so that the steering wheel is easy to lock.
In view of the above, the present utility model has been made in view of the above problems, and it is an object of the present utility model to provide a lower shaft of a power steering system for a pure electric vehicle, which can increase the sense of gravity when the steering wheel rotates, make the sense of road feel good, and prevent the steering wheel from locking suddenly.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a lower shaft of a pure electric vehicle power-assisted steering device, which comprises a first locking piece, wherein the lower end of the first locking piece is fixedly connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a dust cover, the lower end of the connecting rod is fixedly connected with a fixed structure, the front inner wall of the fixed structure is fixedly connected with a fixed column, the outer wall of the fixed column is rotationally connected with a connector, the lower end of the connector is rotationally connected with a spline shaft, the outer wall of the spline shaft is fixedly connected with spline teeth, the outer wall of the spline teeth is fixedly connected with a nano coating, the outer wall of the spline shaft, which is close to one side of the spline teeth, is fixedly connected with a radiation heat dissipation coating, the outer wall of the spline shaft, which is close to one side of the radiation heat dissipation coating, is fixedly connected with a metal ceramic coating, and the lower end of the spline shaft is fixedly connected with a second locking piece.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
as a further description of the above technical solution:
one end of the fixing structure is provided with a hole, and the other end of the fixing structure is provided with a hole.
As a further description of the above technical solution:
the spline shaft has a size larger than that of the connector, and the fixing structure has a size larger than that of the connecting rod.
As a further description of the above technical solution:
the radiation heat dissipation coating is a good conductor of heat, and the second locking piece and the first locking piece have the same function.
As a further description of the above technical solution:
the nano coating has high strength, and the metal ceramic coating has high strength.
As a further description of the above technical solution:
the connector is rotationally connected with the fixed structure through the fixed column, and the spline shaft is rotationally connected with the fixed structure through the connector.
As a further description of the above technical solution:
the diameter of the auxiliary spline is larger than that of the spline shaft, and the size of the upper end of the dust cover is larger than that of the lower end of the dust cover.
The utility model has the following beneficial effects:
the utility model provides a pure electric vehicle power assisted steering ware lower shaft passes through the integral key, the spline teeth, the setting of vice spline realizes making things convenient for the steering wheel fast rotation, and increase the gravity sense that turns to through vice spline, make driver's way feel good, nanometer coating and cermet coating can increase the wear-resisting effect of integral key and vice spline moreover, make it can not wear and tear easily, rust etc. increase the life-span of using, and through the setting of radiation heat dissipation coating, can give off fast the heat that the integral key produced, and overall structure connects more closely, can not fracture easily and drop, the dust cover can prevent that the dust from getting into to pile up moreover, guarantee can not cause the damage to the component.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a lower shaft of a power steering gear of a pure electric vehicle;
fig. 2 is a plan view of a part of a fixing structure of a lower shaft of a power steering gear of a pure electric vehicle;
fig. 3 is a partially corroded plan view of a spline shaft of a lower shaft of a pure electric vehicle power steering gear.
Legend description:
1. a first locking piece; 2. a connecting rod; 3. a dust cover; 4. a fixed structure; 5. fixing the column; 6. a connector; 7. a spline shaft; 8. spline teeth; 9. a nano coating; 10. a radiant heat-dissipating coating; 11. a secondary spline; 12. a cermet coating; 13. and a second locking piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on those shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as being either fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a pure electric vehicle power assisted steering ware lower shaft, including first locking piece 1, the lower extreme fixedly connected with connecting rod 2 of first locking piece 1, the outer wall fixedly connected with dirt proof boot 3 of connecting rod 2, the lower extreme fixedly connected with fixed knot of connecting rod 2 constructs 4, the positive inner wall fixedly connected with fixed column 5 of fixed knot constructs 4, the outer wall rotation of fixed column 5 is connected with connector 6, the lower extreme rotation of connector 6 is connected with spline shaft 7, the outer wall fixedly connected with spline tooth 8 of spline shaft 7, the outer wall fixedly connected with nanometer coating 9 of spline tooth 8, the outer wall fixedly connected with radiation heat dissipation coating 10 of spline shaft 7 is close to one side of spline tooth 8, the outer wall fixedly connected with auxiliary spline 11 of spline shaft 7 is close to one side of radiation heat dissipation coating 10, the outer wall fixedly connected with cermet coating 12 of auxiliary spline 11, the lower extreme fixedly connected with second locking piece 13 of spline shaft 7.
The utility model provides a pure electric vehicle power assisted steering ware lower shaft passes through spline shaft 7, spline tooth 8, auxiliary spline 11's setting, realize making things convenient for the steering wheel fast rotation, and increase the gravity sense that turns to through auxiliary spline 11, make driver's way feel good, and nano coating 9 and cermet coating 12 can increase the wear-resisting effect of spline shaft 7 and auxiliary spline 11, make it can not wearing and tearing easily fracture, rust etc. and increase the life-span of using, and through the setting of radiant heat coating 10, can give off fast the heat that spline shaft 7 produced, and overall structure connects more closely, can not fracture easily and drop, dust cover 3 can prevent that the dust from getting into to pile up moreover, guarantee can not cause the damage to the component.
Specifically, one end of the fixing structure 4 is provided with a hole, and the other end of the fixing structure 4 is provided with a hole, so that the connector 6 can rotate normally;
specifically, the size of the spline shaft 7 is larger than that of the connector 6, and the size of the fixing structure 4 is larger than that of the connecting rod 2, so that good connection effect is ensured;
specifically, the radiation heat dissipation coating 10 is a good conductor of heat, and the second locking piece 13 has the same function as the first locking piece 1, so as to ensure heat dissipation of the spline shaft 7;
specifically, the nano coating 9 has high strength, and the metal ceramic coating 12 has high strength, so that the abrasion resistance of the spline shaft 7 and the auxiliary spline 11 is improved;
specifically, the connector 6 is rotationally connected with the fixed structure 4 through the fixed column 5, and the spline shaft 7 is rotationally connected with the fixed structure 4 through the connector 6, so that the second locking piece 13 is guaranteed to rotate and move;
specifically, the diameter of the auxiliary spline 11 is larger than that of the spline shaft 7, and the size of the upper end of the dust cover 3 is larger than that of the lower end, so that a good dust prevention effect is ensured.
Working principle: when using, connect fixedly through first locking piece 1 and second locking piece 13 respectively, make it closely with trolley-bus connection, and dust cover 3 can prevent to have the dust to get into, make the accumulation of dust can not appear on its interior component surface, thereby reduce the probability that the damage appears in the component, when turning to, connector 6 can remove spline shaft 7 and second locking piece 13 through fixed column 5, and spline shaft 7 and auxiliary spline 11 can rotate simultaneously, thereby make second locking piece 13 rotate, guarantee to turn to effectually, increase the security, nano coating 9 and cermet coating 12 intensity are high moreover, can reduce the loss that the friction produced, increase of service life.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a pure electric vehicle power assisted steering ware lower shaft, includes first locking piece (1), its characterized in that: the lower extreme fixedly connected with connecting rod (2) of first locking piece (1), the outer wall fixedly connected with dirt proof boot (3) of connecting rod (2), the lower extreme fixedly connected with fixed knot of connecting rod (2) constructs (4), the positive inner wall fixedly connected with fixed column (5) of fixed knot construct (4), the outer wall rotation of fixed column (5) is connected with connector (6), the lower extreme rotation of connector (6) is connected with spline shaft (7), the outer wall fixedly connected with spline tooth (8) of spline shaft (7), the outer wall fixedly connected with nanometer coating (9) of spline tooth (8), the outer wall fixedly connected with radiation heat dissipation coating (10) of spline shaft (7) side is close to radiation heat dissipation coating (10) one side, the outer wall fixedly connected with auxiliary spline (11) of auxiliary spline (11), the outer wall fixedly connected with cermet coating (12), the lower extreme fixedly connected with second locking piece (13) of spline shaft (7).
2. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: one end of the fixing structure (4) is provided with a hole, and the other end of the fixing structure (4) is provided with a hole.
3. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: the spline shaft (7) has a larger size than the connector (6), and the fixing structure (4) has a larger size than the connecting rod (2).
4. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: the radiation heat dissipation coating (10) is a good conductor of heat, and the second locking piece (13) has the same function as the first locking piece (1).
5. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: the nano-coating (9) has high strength, and the cermet coating (12) has high strength.
6. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: the connector (6) is rotationally connected with the fixed structure (4) through the fixed column (5), and the spline shaft (7) is rotationally connected with the fixed structure (4) through the connector (6).
7. A lower shaft of a power steering gear for a pure electric vehicle as defined in claim 1, wherein: the diameter of the auxiliary spline (11) is larger than that of the spline shaft (7), and the size of the upper end of the dust cover (3) is larger than that of the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321749416.4U CN220639996U (en) | 2023-07-05 | 2023-07-05 | Lower shaft of pure electric vehicle power-assisted steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321749416.4U CN220639996U (en) | 2023-07-05 | 2023-07-05 | Lower shaft of pure electric vehicle power-assisted steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220639996U true CN220639996U (en) | 2024-03-22 |
Family
ID=90290488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321749416.4U Active CN220639996U (en) | 2023-07-05 | 2023-07-05 | Lower shaft of pure electric vehicle power-assisted steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220639996U (en) |
-
2023
- 2023-07-05 CN CN202321749416.4U patent/CN220639996U/en active Active
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