CN221233856U - Drive-by-wire steering limiting device - Google Patents
Drive-by-wire steering limiting device Download PDFInfo
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- CN221233856U CN221233856U CN202323549474.5U CN202323549474U CN221233856U CN 221233856 U CN221233856 U CN 221233856U CN 202323549474 U CN202323549474 U CN 202323549474U CN 221233856 U CN221233856 U CN 221233856U
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- output shaft
- limiting
- speed reducing
- steering
- wire
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- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a steering-by-wire limiting device, which relates to the technical field of automobile steering and comprises a rotating shaft, an output shaft, a limiting belt, a limiting shell and a speed reducing mechanism, wherein one end of the rotating shaft is connected with a steering wheel, the other end of the rotating shaft is connected with the output shaft, the speed reducing mechanism is sleeved on the peripheral wall of the output shaft, one end of the limiting belt is connected with the output shaft, and the other end of the limiting belt is wound around the output shaft in a curling way and then connected with the limiting shell or the speed reducing mechanism. The steering wheel rotates to drive the rotating shaft to rotate, the rotation drives the output shaft to synchronously rotate, the limiting belt rotates along with the output shaft, and when the winding of the limiting belt is curled to reach a tight state, the limiting belt stops rotating, the rotation of the output shaft is further limited, and finally the rotation number of turns of the steering wheel is limited. When the steering wheel rotates reversely, the limiting belt rotates reversely along with the synchronous output shaft, and when the reverse curling winding of the limiting belt reaches the limit, the limiting belt limits the output shaft to stop rotating and limits the reverse rotation number of turns of the steering wheel.
Description
Technical Field
The utility model relates to the technical field of automobile steering, in particular to a steer-by-wire limiting device.
Background
The steering-by-wire system consists of a steering-by-wire column, a steering-by-wire machine, a wire harness, a power supply and other auxiliary systems. Compared with the traditional automobile steering system, the automobile steering-by-wire system cancels the mechanical connection between the steering wheel and the steering wheel, and realizes steering by electric energy control completely, and although more space is brought to the design of automobile steering characteristics, when the automobile is powered down or the road feel simulation motor fails, the steering wheel cannot limit by using the mechanical connection, endless rotation is carried out, namely the limitation of the number of turns is lost, and further, the electric signals of a steering actuator and the road feel simulator sensor are possibly inconsistent, so that the automobile cannot run under severe conditions.
Disclosure of utility model
1. Technical problem to be solved by the utility model
In order to solve the technical problems, the utility model provides a steer-by-wire limiting device which limits the number of forward and reverse rotation turns of a steering wheel so as to avoid serious problems of influence on the operation confidence of a driver, such as middle position searching and the like of the steering wheel rotation after starting when the angle of the steering wheel of a vehicle is not corresponding to the angle of a sensor of a steering actuator.
2. Technical proposal
In order to solve the problems, the technical scheme provided by the utility model is as follows: the utility model provides a drive-by-wire turns to stop device, includes pivot, output shaft, spacing area, spacing casing and reduction gears, pivot one end is used for being connected with the steering wheel, and the pivot other end and output shaft, reduction gears cover is established at the output shaft periphery wall, spacing area one end and output shaft connection, spacing area other end is connected with spacing casing or reduction gears after winding around the output shaft curl.
Optionally, the other end of the limiting belt is connected with the limiting shell, the output shaft and the limiting shell are both provided with clamping grooves, and two ends of the limiting belt are respectively provided with clamping protrusions matched with the clamping grooves; or the output shaft and the limiting shell are both provided with clamping protrusions, and two ends of the limiting belt are respectively provided with clamping grooves matched with the clamping protrusions.
Optionally, the width of the notch of the clamping groove is smaller than the width of the bottom of the clamping groove, and the clamping protrusion is connected with the clamping groove in an axial fit manner.
Optionally, the reduction gears includes motor, reduction subassembly and speed reduction casing, the reduction subassembly sets up inside the speed reduction casing, reduction subassembly one end is connected with the motor, and the other end cover of reduction subassembly is established at the output shaft periphery wall, the limit band other end is connected with the speed reduction casing.
Optionally, the limit housing is detachably connected with the speed reduction housing.
Optionally, the quantity of draw-in groove is one or more, and when the quantity of draw-in groove is a plurality of, a plurality of draw-in grooves evenly set up along output shaft circumference interval, spacing area and draw-in groove one-to-one setting.
Optionally, the speed reduction casing is equipped with the projection, spacing area one end and output shaft connection, spacing area other end winding is on the projection.
Optionally, the device further comprises a pipe column, wherein the pipe column is arranged on the periphery of the joint of the rotating shaft and the output shaft, and a mounting bracket is arranged on the outer wall of the pipe column.
Optionally, the material of spacing area is fibrous material or flexible metal material.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
The steering wheel rotates to drive the rotating shaft to rotate, the rotation drives the output shaft to synchronously rotate, the limiting belt rotates along with the output shaft, and when the winding of the limiting belt is curled to reach a tight state, the limiting belt stops rotating, the rotation of the output shaft is further limited, and finally the rotation number of turns of the steering wheel is limited. When the steering wheel rotates reversely, the limiting belt rotates reversely along with the synchronous output shaft, and when the reverse curling winding of the limiting belt reaches the limit, the limiting belt limits the output shaft to stop rotating and limits the reverse rotation number of turns of the steering wheel, so that the serious problems that the steering wheel rotates to find the middle position after starting and the like to influence the operation confidence of a driver and the like are avoided when the angle of the steering wheel of the vehicle is not corresponding to the angle of a sensor of a steering actuator.
Drawings
Fig. 1 is a schematic structural diagram of a steer-by-wire limiting device according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of an output shaft, a limiting belt and a limiting housing of the steer-by-wire limiting device according to an embodiment of the present utility model.
Fig. 3 is a cross-sectional view of a steer-by-wire limiting device according to an embodiment of the present utility model.
The marks in the drawings are as follows: 1. a rotating shaft; 2. an output shaft; 21. a clamping groove; 3. a limit belt; 31. a clamping protrusion; 4. a limit housing; 5. a speed reducing mechanism; 51. a motor; 52. a speed reduction housing; 6. a tubular column; 61. and (5) mounting a bracket.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples.
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present utility model, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the utility model.
Example 1
Referring to fig. 1, the steer-by-wire limiting device of the embodiment comprises a rotating shaft 1, an output shaft 2, a limiting belt 3, a limiting shell 4 and a speed reducing mechanism 5, wherein one end of the rotating shaft 1 is used for being connected with a steering wheel, the other end of the rotating shaft 1 is connected with the output shaft 2, the speed reducing mechanism 5 is sleeved on the peripheral wall of the output shaft 2, one end of the limiting belt 3 is connected with the output shaft 2, and the other end of the limiting belt 3 is connected with the limiting shell 4 or the speed reducing mechanism 5 after being curled and wound around the output shaft 2. The steering wheel rotates and drives the rotating shaft 1 to rotate, the rotation drives the output shaft 2 to synchronously rotate, the limiting belt 3 rotates along with the output shaft 2, and when the limiting belt 3 is curled and wound to reach a tight state, the limiting belt 3 stops rotating, so that the rotation of the output shaft 2 is limited, and finally the rotation number of turns of the steering wheel is limited. When the steering wheel reversely rotates, the limiting belt 3 synchronously reversely rotates along with the output shaft 2, when the reverse curling winding of the limiting belt 3 reaches the limit, the limiting belt 3 limits the output shaft 2 to stop rotating and limits the reverse rotation number of turns of the steering wheel, so that serious problems that the steering wheel automatically rotates after being started to find the middle position and the like to influence the operation confidence of a driver and the like are avoided when the angle of the steering wheel of the vehicle is not corresponding to the sensor angle of the steering actuator. The rotating shaft 1 and the output shaft 2 can be connected through a spline.
Example 2
With reference to fig. 2, compared with the technical solution of embodiment 1, the steer-by-wire limiting device of this embodiment can be improved as follows: the other end of the limiting belt 3 is connected with the limiting shell 4, the output shaft 2 and the limiting shell 4 are both provided with clamping grooves 21, and the two ends of the limiting belt 3 are respectively provided with clamping protrusions 31 matched with the clamping grooves 21; in other embodiments, the output shaft 2 and the limiting housing 4 are both provided with a clamping protrusion 31, and two ends of the limiting belt 3 are respectively provided with a clamping groove 21 matched with the clamping protrusion 31.
Example 3
With reference to fig. 2, compared with the technical solution of embodiment 1 or 2, the steer-by-wire limiting device of this embodiment can be improved as follows: the width of the notch of the clamping groove 21 is smaller than the width of the bottom of the clamping groove 21, and the clamping protrusion 31 is axially matched and connected with the clamping groove 21. When the output shaft 2 and the limit housing 4 are both provided with the clamping groove 21, the clamping protrusion 31 at one end of the limit belt 3 is clamped into the clamping groove 21 on the output shaft 2 by the axial direction, the clamping protrusion 31 at the other end of the limit belt 3 is clamped into the clamping groove 21 on the limit housing 4 by the axial direction, the notch of the clamping groove 21 is respectively arranged along the radial direction of the output shaft 2 and the radial direction of the limit housing 4, the width of the notch of the clamping groove 21 is smaller than the width of the notch of the slot bottom of the clamping groove 21, the clamping protrusion 31 is prevented from being separated from the notch in the radial direction, and the stability that the limit belt 3 is respectively connected with the output shaft 2 and the limit housing 4 in the rotating process is ensured.
Example 4
With reference to fig. 1, compared with any one of the technical schemes of embodiments 1 to 3, the steer-by-wire limiting device of the present embodiment can be improved as follows: the speed reducing mechanism 5 comprises a motor 51, a speed reducing assembly and a speed reducing shell 52, wherein the speed reducing assembly is arranged inside the speed reducing shell 52, one end of the speed reducing assembly is connected with the motor 51, and the other end of the speed reducing assembly is sleeved on the peripheral wall of the output shaft 2. One end of the limiting belt 3 is connected with the output shaft 2, and the other end of the limiting belt 3 can be fixed on the speed reduction shell 52. The reduction assembly may be a worm and gear reduction assembly, a planetary reduction or a pulley reduction assembly, as is known in the art.
Example 5
With reference to fig. 1, compared with any one of the technical schemes of embodiments 1 to 4, the steer-by-wire limiting device of the present embodiment can be improved as follows: the limit housing 4 is detachably connected with the speed reduction housing 52. The limit housing 4 and the reduction housing 52 are detachably connected by screws.
Example 6
With reference to fig. 1, compared with any one of the technical schemes in embodiments 1 to 5, the steer-by-wire limiting device of the present embodiment can be improved as follows: the number of the clamping grooves 21 is one or more, when the number of the clamping grooves 21 is multiple, the clamping grooves 21 are uniformly arranged along the circumferential direction of the output shaft 2 at intervals, and the limit belts 3 are arranged in one-to-one correspondence with the clamping grooves 21. The plurality of limit belts 3 increase the overall tensile capacity and durability of the limit belts 3, and the reliability of limit functions is improved. In other embodiments, the slot 21 may extend longitudinally through the output shaft 2.
Example 7
Compared with any one of the technical schemes in embodiments 1 to 6, the steer-by-wire limiting device of the embodiment can be improved as follows: the speed reduction shell 52 is provided with a convex column, one end of the limiting belt 3 is connected with the output shaft 2, and the other end of the limiting belt 3 is wound on the convex column. The limiting belt 3 is tightly wound on the convex column and fixedly connected with the convex column, and the limiting belt 3 can be nailed on the speed reduction shell 52 through pins.
Example 8
Referring to fig. 3, compared with any one of the technical schemes of embodiments 1 to 7, the steer-by-wire limiting device of this embodiment can be improved as follows: the rotary shaft and output shaft combined type electric motor further comprises a pipe column 6, wherein the pipe column 6 is arranged on the periphery of the joint of the rotary shaft 1 and the output shaft 2, and a mounting bracket 61 is arranged on the outer wall of the pipe column 6. The mounting bracket 61 may mount the pipe string 6 on a test rack.
Example 9
With reference to fig. 2, compared with any one of the technical schemes of embodiments 1 to 8, the steer-by-wire limiting device of the present embodiment can be improved as follows: the limiting belt 3 is made of fiber or flexible metal. The fiber material and the flexible metal have larger flexibility and rebound resilience, and can meet the requirement of the limit belt 3.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (9)
1. The utility model provides a drive-by-wire turns to stop device, its characterized in that includes pivot, output shaft, spacing area, spacing casing and reduction gears, pivot one end is used for being connected with the steering wheel, and the pivot other end and output shaft, reduction gears cover is established at output shaft peripheral wall, spacing area one end and output shaft, the spacing area other end is connected with spacing casing or reduction gears after winding around the output shaft curl.
2. The steering-by-wire limiting device according to claim 1, wherein the other end of the limiting belt is connected with a limiting shell, the output shaft and the limiting shell are both provided with clamping grooves, and two ends of the limiting belt are respectively provided with clamping protrusions matched with the clamping grooves; or the output shaft and the limiting shell are both provided with clamping protrusions, and two ends of the limiting belt are respectively provided with clamping grooves matched with the clamping protrusions.
3. The steering-by-wire limiting device of claim 2, wherein the width of the slot opening of the clamping slot is smaller than the width of the slot bottom of the clamping slot, and the clamping protrusion is in axial fit connection with the clamping slot.
4. The steering-by-wire limiting device according to claim 1, wherein the speed reducing mechanism comprises a motor, a speed reducing assembly and a speed reducing shell, the speed reducing assembly is arranged inside the speed reducing shell, one end of the speed reducing assembly is connected with the motor, the other end of the speed reducing assembly is sleeved on the peripheral wall of the output shaft, and the other end of the limiting belt is connected with the speed reducing shell.
5. The steer-by-wire limiting device of claim 4 wherein the limiting housing is removably coupled to the reduction housing.
6. The steering-by-wire limiting device according to claim 2, wherein the number of the clamping grooves is one or more, and when the number of the clamping grooves is multiple, the clamping grooves are uniformly arranged at intervals along the circumferential direction of the output shaft, and the limiting belts are arranged in one-to-one correspondence with the clamping grooves.
7. The steering-by-wire limiting device of claim 4, wherein the reduction housing is provided with a boss, one end of the limiting belt is connected with the output shaft, and the other end of the limiting belt is wound on the boss.
8. The drive-by-wire steering limiting device of claim 1, further comprising a pipe column disposed at the periphery of the junction of the rotary shaft and the output shaft, wherein a mounting bracket is disposed on the outer wall of the pipe column.
9. The steer-by-wire limiting device of claim 1, wherein the limiting strap is a fibrous material or a flexible metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323549474.5U CN221233856U (en) | 2023-12-25 | 2023-12-25 | Drive-by-wire steering limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323549474.5U CN221233856U (en) | 2023-12-25 | 2023-12-25 | Drive-by-wire steering limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221233856U true CN221233856U (en) | 2024-06-28 |
Family
ID=91598651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323549474.5U Active CN221233856U (en) | 2023-12-25 | 2023-12-25 | Drive-by-wire steering limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221233856U (en) |
-
2023
- 2023-12-25 CN CN202323549474.5U patent/CN221233856U/en active Active
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| GR01 | Patent grant | ||
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