CN220114687U - Steering motor mounting structure, steering system and vehicle - Google Patents
Steering motor mounting structure, steering system and vehicle Download PDFInfo
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- CN220114687U CN220114687U CN202320739161.7U CN202320739161U CN220114687U CN 220114687 U CN220114687 U CN 220114687U CN 202320739161 U CN202320739161 U CN 202320739161U CN 220114687 U CN220114687 U CN 220114687U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the field of vehicles, and discloses a steering motor mounting structure, a steering system and a vehicle, wherein the mounting structure comprises a steering column (1) and a steering shaft (2) which penetrates through the steering column (1) and is rotatably supported on the steering column (1), the steering motor comprises a steering motor stator (3) coaxially fixed to the steering column (1) and a steering motor rotor (4) which surrounds and is in circumferential transmission connection with the steering shaft (2), and the steering motor rotor (4) can drive the steering shaft (2) to synchronously rotate. The installation structure is convenient for arranging the reversing control gear lever, the light control gear lever and the like, thereby ensuring driving comfort and driving safety, simultaneously omitting complex variable speed transmission mechanisms such as gear sets and the like, having high energy utilization rate, avoiding occupying larger arrangement space, and having the advantages of simple structure, high integration level, low cost and the like.
Description
Technical Field
The utility model relates to the field of vehicles, in particular to a mounting structure of a steering motor. On the basis of the mounting structure, the utility model also relates to a steering system comprising the mounting structure and a vehicle with the steering system.
Background
In recent years, with the rapid development of intelligent emerging industries, vehicle intelligent technologies including agricultural machinery are receiving increasing attention. Among them, the advanced intelligent agricultural machinery technology represented by the agricultural machinery automatic driving technology is an important development direction in the agricultural machinery field, and automatic steering is one of core technologies for realizing unmanned and unmanned operation of the agricultural machinery.
In the conventional art, a steering system of a vehicle mainly includes a steering mechanism mainly composed of a steering wheel, a steering shaft, a steering column, and the like, a steering gear, a steering transmission mechanism, and the like, and a driver turns the steering wheel to apply a steering torque to steering wheels.
In agricultural machinery, such as a tractor, where automatic or electric power steering is enabled, the steering system replaces the steering torque applied to the steering wheel by the driver with torque generated by the steering motor. Conventionally, a steering motor is disposed directly under (integrated with) a steering wheel, which results in an increase in the thickness of the steering wheel, which is disadvantageous for the arrangement and manipulation of steering levers, light steering levers, etc., which a driver may need to bend down during driving to reach, which seriously affects driving comfort and driving safety, or is laterally disposed with respect to a steering shaft; the latter requires a complex transmission mechanism such as a gear set arranged between the steering motor and the steering shaft, and occupies a large arrangement space. In addition, the above arrangement also makes it easy to expose the wire harness for the steering motor to the inside of the cab, reducing the aesthetic appearance.
Disclosure of Invention
The utility model aims to overcome at least part of the problems in the prior art and provide a steering motor mounting structure which can facilitate the arrangement and the operation of a control gear lever, a lamplight control gear lever and the like, does not occupy a larger arrangement space and has the advantages of simple structure, high integration level, low cost and the like.
In order to achieve the above object, an aspect of the present utility model provides a mounting structure of a steering motor including a steering column and a steering shaft extending through and rotatably supported by the steering column, the steering motor including a steering motor stator coaxially fixed to the steering column and a steering motor rotor encircling and circumferentially drivingly engaged to the steering shaft, and being configured to be capable of synchronously rotating the steering shaft by the steering motor rotor.
Preferably, the mounting structure further includes a first bracket fixed to the steering column, the steering motor stator being detachably mounted to the first bracket to be fixed to the steering column by the first bracket.
Preferably, the first bracket is formed with a center circular hole having a diameter equal to an outer diameter of the steering column, and welded to the steering column at the center circular hole position.
Preferably, a plurality of first screw holes are formed at an outer circumference of the first bracket, and the steering motor stator is detachably mounted to the first bracket by a screw fastener screwed to the first screw holes.
Preferably, the mounting structure further comprises a second bracket engaged with the steering shaft by a circumferential drive fit, the steering motor rotor being detachably connected to the second bracket to be circumferentially driven engaged with the steering shaft by the second bracket.
Preferably, the circumferential transmission engagement structure includes an internal spline formed at a central position of the second bracket and an external spline engaged with the internal spline formed on an outer peripheral surface of the steering shaft.
Preferably, a plurality of second screw holes are formed at an outer circumference of the second bracket, and the steering motor rotor is detachably connected to the second bracket by a screw fastener screwed to the second screw holes.
Preferably, the steering motor stator is fixed to an axial end of the steering column.
A second aspect of the utility model provides a steering system including the above-described steering motor mounting structure.
A third aspect of the present utility model provides a vehicle having the steering system described above, wherein the steering motor is installed hidden in a space covered by an instrument panel, and/or a steering wheel is installed at a top end of the steering shaft, and a reversing lever and/or a lamp light lever is arranged between the steering wheel and the steering motor.
Through the technical scheme, the steering motor stator and the steering motor rotor of the steering motor are respectively and integrally arranged on the steering column and the steering shaft, so that the thickness of the steering wheel (if any) is not increased, the steering control rod, the lamplight control rod and the like are conveniently arranged below the steering wheel, and the driving comfort and the driving safety are ensured. Meanwhile, by utilizing the mounting structure, the torque output by the steering motor is directly applied to the steering shaft so that the steering shaft and the steering motor rotor synchronously rotate, and a complex variable speed transmission mechanism such as a gear set and the like is omitted, so that the energy utilization rate is high, the occupation of a larger arrangement space is avoided, and the novel steering motor has the advantages of simple structure, high integration level, low cost and the like.
Drawings
Fig. 1 is a schematic structural view of a mounting structure of a steering motor according to a preferred embodiment of the present utility model;
FIG. 2 is an end view of a first bracket of the mounting structure of FIG. 1;
fig. 3 is an end view of a second bracket of the mounting structure of fig. 1.
Description of the reference numerals
1-steering column; 2-a steering shaft; 3-steering motor stator; 4-steering a motor rotor; 5-a first scaffold; 51-a central round hole; 52-a first screw hole; 6-a second bracket; 61-internal splines; 62-second screw hole.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In the description of the present utility model, it should be noted that the terms "upper," "lower," "inner," "outer," and the like indicate an orientation or a positional relationship as shown in the basic drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a steering motor mounting structure according to a preferred embodiment of the present utility model includes a steering column 1 mounted on a vehicle body, for example, and a steering shaft 2 rotatably supported by the steering column 1. Wherein the steering shaft 2 is passed through the steering column 1 and is rotatably supported by a bearing and a bush provided in the steering column 1. The tip end of the steering shaft 2 may be selectively fitted with a steering wheel as needed, so that the vehicle can be given a normal driving function, steering being achieved by a steering torque applied to the steering wheel by a driver.
Wherein the steering motor comprises a steering motor stator 3 and a steering motor rotor 4. A steering motor stator 3 is coaxially fixed to the steering column 1, and a steering motor rotor 4 is arranged around the steering shaft 2 and is circumferentially drivingly engaged to the steering shaft 2. For example, the steering motor rotor 4 may be fixed circumferentially opposite the steering shaft 2 by the second bracket 6 described later, or directly to the steering shaft 2. Thus, the steering shaft 2 can be driven to rotate relative to the steering column 1, and the rotation speed is equal to the rotation speed of the steering motor rotor 4, namely, the steering motor rotor 4 drives the steering shaft 2 to synchronously rotate.
Therefore, the steering motor stator 3 and the steering motor rotor 4 of the steering motor are respectively and integrally arranged on the steering column 1 and the steering shaft 2 by the mounting structure, so that the thickness of the steering wheel is prevented from being increased due to the fact that the steering motor stator and the steering motor rotor are integrated with the steering wheel (if any), the steering motor stator and the steering motor rotor are convenient to arrange a reversing control gear lever, a lamplight control gear lever and the like below the steering wheel (above the steering motor), a driver can touch the control gear levers without bending down, and driving comfort and driving safety can be guaranteed. In the mounting structure, the steering motor rotor 4 rotates under the action of the magnetic field of the steering motor stator 3 and directly outputs torque to the steering shaft 2, so that the steering shaft 2 and the steering motor rotor 4 synchronously rotate, a complex variable speed transmission mechanism such as a gear set is omitted, the energy utilization rate is high, the space occupied by the steering motor is minimized due to the annular motor structure, and the mounting structure has the advantages of simple structure, high integration level, low cost and the like.
According to the above, the mounting structure of the present utility model disposes the steering motor at a position spaced apart from the steering wheel (if any) below the steering wheel so as to dispose the reversing lever, the lamp operating lever, and the like therebetween. I.e. the middle part of the extension of the steering shaft 2 around which the steering motor rotor 4 is to be arranged, should not be arranged at the top end of the steering shaft 2. In a preferred embodiment, to facilitate the arrangement and installation of the steering motor stator 3 and the steering motor rotor 4, the steering motor stator 3 may be fixed to an axial end of the steering column 1, i.e. a penetrating end of the steering shaft 2. For example, in the illustrated preferred embodiment, the steering motor stator 3 is fixed to the top end of the steering column 1. Accordingly, the steering motor rotor 4 may surround a portion of the steering shaft 2 penetrating the steering column 1 and correspond to the steering motor stator 3 so as to be rotated by electromagnetic action of the steering motor stator 3. In other embodiments, the steering motor may also be disposed at a position corresponding to the middle portion of the steering column 1, but this may limit the winding length and output power of the steering motor, which is inconvenient in terms of component arrangement and installation.
The motor components are typically manufactured separately from components such as a steering column and a steering shaft of a steering system in a vehicle, and then may be assembled into the steering system components. For this purpose, the steering motor stator 3 and the steering motor rotor 4 described above may be fixed or assembled to the steering column 1 and the steering shaft 2, respectively, by intermediate mounts. Specifically, as shown in connection with fig. 2 and 3, in a preferred embodiment of the present utility model, the steering motor stator 3 may be fixed to the steering column 1 by a first bracket 5, and the steering motor rotor 4 may be circumferentially drivingly engaged to the steering shaft 2 by a second bracket 6.
Fig. 2 shows an end view of the first bracket 5. The first bracket 5 is formed with a center circular hole 51, and the diameter of the center circular hole 51 is equal to (or slightly larger than) the outer diameter of the steering column 1. Thereby, the first bracket 5 can be welded to the steering column 1 at the position of the center circular hole 51. In other embodiments, the first bracket 5 may be secured to the steering column 1 by other means (e.g., with fasteners).
The first bracket 5 may also be formed at an outer circumference thereof with a plurality of first screw holes 51, and the steering motor stator 3 may be detachably mounted to the first bracket 5 by a screw fastener screwed to the first screw holes 52. The first bracket 5 thus provides a mounting base of the steering motor stator 3 on the steering column 1, which may be formed in a plate shape or a cylindrical shape.
Fig. 3 shows an end view of the second bracket 6. In a preferred embodiment of the utility model, the second bracket 6 is engaged with the steering shaft 2 by means of a circumferential drive fit, whereby the steering motor rotor 4 connected to the second bracket 6 can be engaged to the rotating shaft 2 by means of the circumferential drive fit. This may allow the steering shaft 2 to change axial position relative to the steering column 1 in order to adjust the height of the steering wheel as required, compared to the way the second bracket 6 or the steering motor rotor 4 is directly fixedly connected to the steering shaft 2.
In the illustrated embodiment, the circumferential transmission engagement structure includes an internal spline 61 formed at a central position of the second bracket 6 and an external spline formed on an outer peripheral surface of the steering shaft 2 to be engaged with the internal spline 61, and the steering motor rotor 4 is detachably connected to the second bracket 6, whereby when the steering motor rotor 4 rotates, the steering shaft 2 can be driven to rotate synchronously by the second bracket 6 to achieve steering running of the vehicle. In other embodiments, the above-described internal and external splines may be replaced with a gear structure as a circumferential transmission engagement structure between the second bracket 6 and the steering shaft 2, or the second bracket 6 may be fixed to the steering shaft 2.
The second bracket 6 may be formed at an outer circumference thereof with a plurality of second screw holes 62, and the steering motor rotor 4 may be detachably coupled to the second bracket 6 by a screw fastener screwed to the second screw holes 62. The second bracket 6 thus provides a drive connection foundation for the steering motor rotor 4 to be coupled to the steering shaft 2 in a circumferential drive manner, which can be formed in a plate-like manner with a certain thickness in order to reliably transmit the steering torque.
On the basis of this, the utility model also provides a steering system comprising the mounting structure of the steering motor, which can be controlled by a controller to enable automatic steering, or which can be switched between an automatic steering mode and a manual steering mode by driver steering.
The mounting structure and the steering system of the steering motor provided by the utility model can be applied to vehicles such as tractors. The steering motor is integrally arranged on the steering column and the steering shaft, and can be installed in the space covered by the instrument panel in a hidden mode, so that wiring harness arrangement in a visible range in a cab can be effectively reduced, outward exposure of motor wiring harnesses is avoided, and use safety and attractiveness are improved. And/or, compared with the arrangement structure of the transmission steering system, in the case that the steering wheel is arranged at the top end of the steering shaft, the arrangement structure of the utility model can lead the steering motor to be arranged at intervals relative to the steering wheel, and keep the reversing control level and/or the lamplight control level in the space below the steering wheel (above the steering motor), so that a driver can control the control levels according to the traditional driving habit of the vehicle, thereby effectively ensuring the driving comfort and the driving safety.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (8)
1. A mounting structure of a steering motor, characterized by comprising a steering column (1) and a steering shaft (2) extending through the steering column (1) and rotatably supported to the steering column (1), the steering motor comprising a steering motor stator (3) coaxially fixed to the steering column (1) and a steering motor rotor (4) circumferentially surrounding and drivingly engaged to the steering shaft (2) and arranged so as to be capable of synchronously rotating the steering shaft (2) by the steering motor rotor (4),
wherein the mounting structure further comprises a first bracket (5) fixed to the steering column (1), the steering motor stator (3) is detachably mounted to the first bracket (5) to be fixed to the steering column (1) by the first bracket (5), the first bracket (5) is formed with a center circular hole (51) having a diameter equal to an outer diameter of the steering column (1), and is welded to the steering column (1) at a position of the center circular hole (51).
2. The steering motor mounting structure according to claim 1, wherein a plurality of first screw holes (52) are formed at an outer periphery of the first bracket (5), and the steering motor stator (3) is detachably mounted to the first bracket (5) by a screw fastener screwed to the first screw holes (52).
3. The steering motor mounting structure according to claim 1, further comprising a second bracket (6) engaged with the steering shaft (2) by a circumferential transmission mating structure, the steering motor rotor (4) being detachably connected to the second bracket (6) to be circumferentially and drivingly engaged to the steering shaft (2) by the second bracket (6).
4. A steering motor mounting structure according to claim 3, wherein the circumferential transmission engagement structure includes an internal spline (61) formed at a center position of the second bracket (6) and an external spline engaged with the internal spline (61) formed on an outer peripheral surface of the steering shaft (2).
5. A steering motor mounting structure according to claim 3, wherein a plurality of second screw holes (62) are formed at an outer periphery of the second bracket (6), and the steering motor rotor (4) is detachably connected to the second bracket (6) by a screw fastener screwed to the second screw holes (62).
6. The steering motor mounting structure according to claim 1, wherein the steering motor stator (3) is fixed to an axial end portion of the steering column (1).
7. A steering system, characterized in that it comprises the steering motor mounting structure according to any one of claims 1 to 6.
8. A vehicle having a steering system according to claim 7, wherein the steering motor is mounted hidden in a space covered by an instrument panel and/or a steering wheel is mounted on top of the steering shaft (2), and a reversing lever and/or a light lever is arranged between the steering wheel and the steering motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320739161.7U CN220114687U (en) | 2023-04-06 | 2023-04-06 | Steering motor mounting structure, steering system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320739161.7U CN220114687U (en) | 2023-04-06 | 2023-04-06 | Steering motor mounting structure, steering system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220114687U true CN220114687U (en) | 2023-12-01 |
Family
ID=88895175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320739161.7U Active CN220114687U (en) | 2023-04-06 | 2023-04-06 | Steering motor mounting structure, steering system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220114687U (en) |
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2023
- 2023-04-06 CN CN202320739161.7U patent/CN220114687U/en active Active
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