WO2024037284A1 - Electric adjusting structure for steering column, and vehicle - Google Patents
Electric adjusting structure for steering column, and vehicle Download PDFInfo
- Publication number
- WO2024037284A1 WO2024037284A1 PCT/CN2023/108714 CN2023108714W WO2024037284A1 WO 2024037284 A1 WO2024037284 A1 WO 2024037284A1 CN 2023108714 W CN2023108714 W CN 2023108714W WO 2024037284 A1 WO2024037284 A1 WO 2024037284A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rack
- gear
- steering column
- shaft
- worm
- Prior art date
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- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000009467 reduction Effects 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/181—Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
Definitions
- This application relates to the technical field of automobile steering systems, and specifically to an electric steering column adjustment structure and a vehicle.
- the steering system is a series of devices used to change or maintain the driving or reverse direction of a vehicle.
- the steering column is used to connect the steering wheel and the steering gear and is one of the important components of the automobile steering system.
- the steering column allows the position of the steering wheel to be adjusted up and down, forward and backward within a certain range to adapt to the driver's operating habits.
- it is convenient to adjust the spatial position of the steering wheel, so that the driver can easily change different spatial positions according to different needs.
- the purpose of this application is to provide an electric steering column adjustment structure and vehicle with fast adjustment speed and simple structure.
- the electric steering column adjustment structure includes: a support, a steering column, a motor and a reduction mechanism;
- the steering column is slidably mounted on the support;
- the steering column includes a moving outer tube, the motor includes a housing and an output shaft, and the housing is connected to the moving outer tube;
- the reduction mechanism includes a worm and a worm gear, the worm is connected to the output shaft, and the worm gear is meshed with the worm;
- a gear is coaxially provided on the gear shaft of the worm gear, a first rack is fixedly provided on the support, and the length direction of the first rack is arranged parallel to the axial direction of the steering shaft;
- a second rack is fixedly provided on the moving outer tube, and the second rack and the first rack are arranged in parallel; the gears are meshed with the first rack and the second rack respectively for transmission. Steering shaft.
- the steering column further includes a steering shaft, the steering shaft is movably sleeved in the moving outer tube, and the steering shaft is arranged parallel to the output shaft.
- the worm is coaxially connected to the output shaft.
- the second rack and the first rack are respectively located above and below the gear, and the teeth of the second rack and the first rack are arranged oppositely.
- the second rack and the first rack are spaced apart on the circumferential side of the gear, and the second rack and the first rack are spaced 180° apart.
- the axis of the gear shaft is arranged perpendicularly to the direction of the steering axis.
- the gear is a spur gear.
- the moving outer tube is movably connected to the housing, the housing is movably connected to the support, and the steering shaft is movably connected to the moving outer tube;
- the movable outer tube can move along the axis of the steering shaft relative to the housing, the housing can move along the axis of the steering shaft relative to the support, and the steering shaft can move relative to the bearing.
- the moving outer tube moves in the direction of the turning axis.
- At least part of the steering shaft extends outside the first end of the moving outer tube, and the second rack is located at the second end of the moving outer tube.
- a vehicle in another aspect, includes the electric steering column adjustment structure of the present application.
- this application uses a worm gear reduction mechanism as the transmission mechanism.
- the motor drives the gear through the reduction mechanism to mesh with the first rack provided on the support. Since the first rack is fixedly provided on the support, the gear is subject to The reaction force drives the reduction mechanism and the motor to move relative to the support.
- the housing of the motor is connected to the moving outer tube of the steering column, thereby driving the steering column to move relative to the support; at the same time, the gear meshes with the second rack. , the second rack is fixedly placed on the movable outer tube.
- the electric steering column adjustment structure of the present application can use the motor, the reduction mechanism, the gear, the first rack, the second rack, etc. to realize the adjustment of the steering column. Move quickly to achieve rapid adjustment Purpose: It is more suitable for long-stroke adjustment of the steering column, and the adjustment time is shorter, which is beneficial to reducing the driver's waiting time.
- Figure 1 is a schematic diagram of the steering column adjustment structure in related technology
- FIG. 1 is an overall schematic diagram of the electric steering column adjustment structure in this application.
- Figure 3 is a schematic diagram of part of the structure in Figure 2;
- Figure 4 is a schematic structural diagram of the motor and worm gear
- Figure 5 is a schematic diagram of the cooperation between gears and racks.
- first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features.
- plurality means two or more than two, unless otherwise explicitly and specifically limited.
- Several means one or more than one, unless otherwise expressly and specifically limited.
- connection should be understood in a broad sense.
- connection can be a fixed connection or a detachable connection.
- Connection, or integral connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
- the related art discloses the following technical solution: as shown in Figure 1, it includes a rotatable axial adjustment screw 2 provided on the lower column assembly, a telescopic tube assembly 1 and the axial adjustment screw 2 forming a spiral transmission.
- the axial adjustment screw 2 and the nut 3 cooperate to form a screw nut transmission mechanism.
- the telescopic motor 4 drives the axial adjustment screw 2 to rotate
- the nut 3 can make reciprocating linear motion
- the nut 3 drives the telescopic tube assembly 1 to reciprocate synchronously. Linear motion to adjust the up and down position of the steering wheel.
- the telescopic motor 4 is arranged vertically with the axis of the telescopic tube assembly 1, which occupies a large space.
- the rotation speed of the rotating shaft of the telescopic motor 4 is decelerated and turned by the worm gear reduction mechanism 5 to drive the axial adjustment screw 2 to rotate.
- the forward or backward stroke of the nut 3 is equal to the forward or backward stroke of the telescopic tube assembly 1, and the adjustment speed only depends on the rotation speed of the telescopic motor 4, and the adjustment speed is relatively slow.
- Figure 2 is a schematic diagram of the entire electric steering column adjustment structure in this application;
- Figure 3 is a schematic diagram of the partial structure in Figure 2;
- Figure 4 is a schematic diagram of the structure of the motor and worm gear;
- Figure 5 is a schematic diagram of the cooperation between the gear and the rack.
- the electric steering column 20 adjustment structure provided by this application includes: a support 10, a steering column 20, a motor 30 and a reduction mechanism.
- a steering column 20 is slidably disposed on the support 10; the steering column 20 includes a moving outer tube 21, the motor 30 includes a housing 31 and an output shaft 32, and the housing 31 is connected to the moving outer tube 21; the reduction mechanism includes a worm 40 and a worm gear 50 , the worm 40 is connected with the output shaft 32, and the worm gear 50 meshes with the worm 40.
- a gear 52 is coaxially provided on the gear shaft 51 of the worm gear 50 , a first rack 11 is fixedly provided on the support 10 , and the length direction of the first rack 11 is parallel to the axis direction of the steering shaft 23 ; the mobile outer tube 21 A second rack 22 is fixedly provided on the upper body, and the second rack 22 and the first rack 11 are arranged in parallel; the gear 52 meshes with the first rack 11 and the second rack 22 to drive the steering shaft 23 respectively.
- this application omits the screw nut mechanism and uses the worm gear 50 and the worm 40 reduction mechanism as the transmission mechanism.
- the motor 30 drives the gear 52 through the reduction mechanism to mesh with the first rack 11 provided on the support 10. Since the first rack 11 is fixedly arranged on the support 10, the gear 52 receives a reaction force, driving the reduction mechanism and the motor 30 to move relative to the support 10.
- the housing 31 of the motor 30 is connected to the moving outer tube 21 of the steering column 20. , thereby driving the steering column 20 to move relative to the support 10 .
- the gear 52 meshes with the second rack 22.
- the second rack 22 is fixedly arranged and moves on the outer tube 21. As the gear 52 rotates, the second rack 22 moves relative to the gear 52 under the action of the meshing teeth. moves, so that the second rack 22 drives the moving column to move relative to the gear 52, the reduction mechanism and the motor 30, and the moving speed is twice that of the gear 52 and the gear shaft 51, so that the electric steering column 20 adjustment structure of the present application,
- the motor 30, the reduction mechanism, the gear 52, the first rack 11, the second rack 22, etc. can be used to realize the rapid movement of the steering column 20 to achieve the purpose of rapid adjustment. It is more suitable for long-stroke adjustment of the steering column 20. The adjustment time is shorter, which helps reduce the driver's waiting time.
- the gear shaft 51 is rotationally connected to the housing 31 of the motor 30 , and the gear shaft 51 , the gear 52 and the worm gear 50 can move integrally with the motor 30 .
- the gear 52 meshes with the second rack 22, and the second rack 22 is pushed to move in the same direction as the moving direction of the gear shaft 51.
- the moving speed V2 of the second rack 22 is equal to the gear
- the moving speed V0 of the shaft 51 relative to the first rack 11 is added to the moving speed V1 of the second rack 22 relative to the gear shaft 51 .
- the second rack 22 can drive the outer tube 21 and the steering column 20 to move at twice the speed, which can quickly adjust the axial position of the steering column 20. Adjust the up and down position of the steering wheel.
- the motor 30 drives the worm 40 to rotate
- the worm 40 drives the worm gear 50 to rotate
- the worm gear 50 drives the gear shaft 51 to rotate
- the gear shaft 51 drives the gear 52 to rotate
- the gear 52 rotates in the counterclockwise direction, and at the first tooth Under the action of the rack 11, the first rack 11 pushes the gear 52 to move to the left at the moving speed V0; and as the gear 52 rotates, the second rack 22 will be affected by the action of the gear 52, and the second rack 22 will be pushed in the same direction.
- the moving speed of the second rack 22 relative to the gear 52 is V1
- the actual moving speed V2 of the second rack 22 is equal to the movement of the gear 52 relative to the first rack 11
- the speed V0 is added to the moving speed V1 of the second rack 22 relative to the gear shaft 51. It can be seen that the second rack 22 can move faster than the gear shaft 51.
- the steering column 20 also includes a steering shaft 23 .
- the steering shaft 23 is movably sleeved in the moving outer tube 21 .
- the steering shaft 23 is arranged parallel to the output shaft 32 .
- the steering shaft 23 is located in the movable outer tube 21, can rotate relative to the movable outer tube 21, and can move in the axial direction with the movable outer tube 21, so that when the movable outer tube 21 is driven by the second rack 22 to move in the axial direction, The steering shaft 23 moves axially, thereby driving the steering wheel connected to the steering shaft 23 to move axially.
- the steering shaft 23 drives the steering wheel to move up and down in the vertical direction, so that the height position of the steering wheel in the cab can be adjusted.
- the worm 40 is coaxially connected to the output shaft 32 , and the worm 40 is parallel to the axis direction of the steering shaft 23 , that is, the worm 40 is connected to the first rack 11 and the first rack 11 .
- the two racks 22 are parallel at the same time.
- the motor 30 includes a stator and a rotor, and the output shaft 32 is coaxially connected to the rotor, or one axial end of the rotor extends outside the housing 31 to form the output shaft 32 .
- the size of the motor 30 in the axial direction is relatively large.
- the rotor and the output shaft 32 of the motor 30 are respectively arranged parallel to the steering shaft 23.
- the lateral size of the steering column 20 occupied by the motor 30 is smaller, and the lateral size of the entire electric steering column 20 adjustment structure is also smaller, which is beneficial to reducing the lateral volume of the electric steering column 20 adjustment structure and reducing the electric steering
- the space occupied by the adjustment structure of the column 20 reduces the volume occupied by the adjustment structure of the electric steering column 20 in the vehicle and improves the space utilization of the vehicle.
- the worm 40 with a larger axial size is also arranged parallel to the rotation axis, which is not only beneficial to controlling the lateral size of the adjustment structure of the electric steering column 20, but also makes full use of the axial space to increase the stroke of the worm 40, thereby The movement strokes of the worm gear 50, the gear shaft 51 and the gear 52 are increased, thereby increasing the movement strokes of the steering column 20 and increasing the adjustment strokes of the steering shaft 23 and the steering wheel.
- the second rack 22 and the first rack 11 are spaced apart from each other on the circumferential side of the gear 52 , and between the second rack 22 and the first rack 11 180° apart.
- the second rack 22 and the first rack 11 are meshed and connected at different positions of the gear 52 respectively, and the distance between the second rack 22 and the first rack 11 is 180°, which can ensure that the gear 52 is relative to the first rack 11 When moving, the second rack 22 can move in the same direction and at twice the speed.
- the second rack 22 is located above the gear 52
- the first rack 11 is located below the gear 52
- the second rack 22 and the first rack 11 are respectively in contact with the gear. 52 mesh.
- the modules of the first rack 11, the second rack 22 and the gear 52 are the same.
- the module is the factor that determines the tooth size.
- the rack module is the distance between two teeth, which is the ratio of the tooth pitch p between two adjacent teeth on the same side of the tooth profile and the pi ratio ⁇ .
- the first rack 11 and the second rack 22 of the same module can ensure reliable meshing with the gear 52, and when the gear 52 rotates at a certain angle, the relative displacement of the first rack 11 and the gear 52 is equal to that of the second rack 11.
- the relative displacement of the bar 22 and the gear 52 is the same, which is beneficial to accurately designing the adjustment parameters of the adjustment structure of the electric steering column 20 .
- the axis of the gear shaft 51 is arranged perpendicularly to the direction of the steering shaft 23 . Utilizing the vertically arranged gear shaft 51 and the steering shaft 23 can simplify the meshing scenario of the gear 52 and the steering shaft 23 and improve the stability and reliability of the meshing transmission.
- the gear 52 is a spur gear 52 .
- the spur gear 52 can be used to convert the rotational motion of the gear 52 into the linear motion of the gear shaft 51 and the second rack 22 .
- the movable outer tube 21 is movably connected to the housing 31
- the housing 31 is movably connected to the support 10
- the steering shaft 23 is movably connected to the mobile outer tube 21 .
- the movable outer tube 21 can move along the axial direction of the steering shaft 23 relative to the housing 31 , the housing 31 can move along the axial direction of the steering shaft 23 relative to the support 10 , and the steering shaft 23 can move along the steering axis relative to the movable outer tube 21 . Movement in axis direction.
- one of the movable outer tube 21 and the housing 31 of the motor 30 is provided with a guide groove, the support 10 or the other upper guide rail portion of the movable outer tube 21, and the guide groove and the guide rail portion are slidably matched, so that the Support the linear sliding of the support 10 and the moving outer tube 21.
- one of the support 10 or the movable outer tube 21 is provided with a guide groove, and the other of the support 10 or the movable outer tube 21 has a guide rail portion.
- the guide groove and the guide rail portion are in sliding fit, thereby being able to support The support 10 and the moving outer tube 21 slide linearly.
- this embodiment provides an electric steering column adjustment structure, which includes a support 10.
- a steering column 20 is slidably provided on the support 10, and the housing 31 of the motor 30 is connected to the steering column.
- the moving outer tube 21 of the steering column 20 is connected to the steering shaft 23 of the steering column 20 (the axis of the steering shaft 23 coincides with the axis of the steering column 20 core) and the output shaft 32 of the motor 30 (the axis of the output shaft 32 is consistent with the motor).
- the axes of the 30 shaft cores coincide with each other) and are arranged in parallel.
- a worm 40 is arranged on the motor 30 for coaxial rotation.
- the worm gear 50 meshes with the worm 40 to form a worm gear reduction mechanism.
- a gear 52 is arranged coaxially on the gear shaft 51 of the worm gear 50.
- the gear 52 and the worm 40 are arranged in parallel.
- the first rack 11 provided on the support 10 engages in transmission, and the length direction of the first rack 11 is parallel to the direction of the steering axis 23 of the steering column 20 .
- the worm gear 50 meshes with the worm 40 to form a worm gear reduction mechanism, which can decelerate the power output by the motor 30 and increase the torque.
- the motor 30 starts running.
- the gear shaft 51 is driven to rotate.
- the gear 52 provided on the gear shaft 51 meshes with the first rack 11 fixed on the support 10 , during the rotation of the gear shaft, the gear shaft 51 will drive the motor 30 and push the steering column 20 to move the outer tube 21 to extend or shorten along its axial direction, thereby achieving the purpose of adjustment.
- this application The screw nut mechanism is omitted, and the necessary worm gear reduction mechanism is used as the transmission mechanism to drive the gear 52 to mesh with the first rack 11 provided on the support 10, thereby pushing the steering column 20 to perform linear reciprocating motion.
- the motor 30 and the steering column 20 are arranged coaxially, saving space.
- a second rack 22 is fixed on the moving outer tube 21 .
- the second rack 22 and the first rack 11 are arranged in parallel.
- the gear 52 meshes with the second rack 22 for transmission.
- the motor 30 starts running.
- the gear shaft 51 is driven to rotate.
- the gear 52 provided on the gear shaft 51 meshes with the first rack 11 provided on the support 10.
- the gear shaft 51 will drive the motor 30 and the second rack 22 to move.
- the gear 52 meshes with the second rack 22, it will drive the second rack 22 to move relative to the gear 52, that is, the second rack 22 will move relative to the gear 52.
- the second rack 22 will move at twice the speed of the gear shaft 51 to achieve the purpose of speed increase. It is suitable for long-stroke adjustment pipe strings, reducing the adjustment time delay and reducing the driver's waiting time.
- the second rack 22 and the first rack 11 are respectively placed above and below the gear 52 , and the teeth of the second rack 22 and the first rack 11 are arranged oppositely.
- the second rack 22 and the first rack 11 sandwich the gear 52 in the middle.
- they realize meshing transmission, and on the other hand, they also limit the upper and lower positions of the gear 52.
- the force on the gear 52 is even, preventing it from shaking. This further ensures the smoothness of movement of the steering column 20 .
- the axis of the gear shaft 51 of the worm gear 50 is arranged perpendicularly to the direction of the steering axis 23 of the steering column 20, and the gear 52 is a spur gear.
- a linear guide fit is formed between the movable outer tube 21 and the support 10 through a guide groove.
- the length of the guide groove is arranged parallel to the direction of the steering axis 23 of the steering column 20 to ensure that the steering column 20 Smoothness of linear motion.
- the housing 31 of the motor 30 and the first rack 11 form a linear guide fit through a guide groove, and the length of the guide groove is arranged parallel to the direction of the steering axis 23 of the steering column 20 , thereby ensuring the stability of the linear motion of the steering column 20.
- the worm 40 is coaxially connected to the rotor of the motor 30 .
- the axis of the rotor of the motor 30 coincides with the axis of the output shaft 32 and the axis of the shaft core of the motor 30 .
- the worm 40 and the rotor may be connected integrally or connected using a coupling.
- the rotor of the motor 30 drives the worm 40 to rotate along the same axis.
- the second rack 22 is disposed at the bottom of the rear end of the movable outer tube 21. This structure can ensure that it takes up the least space without affecting the action of the transmission mechanism.
- the motor 30 is located outside the steering column 20, and the height of the overall mechanism is moderate and takes up little space.
- this embodiment provides a vehicle including the electric steering column adjustment structure of the present application.
- the vehicle of this embodiment includes the electric steering column adjustment structure of the present application and has all the beneficial technical effects of the present application.
- the vehicle may be any form of vehicle with a steering wheel system, including but not limited to passenger cars, commercial vehicles, engineering vehicles, special vehicles, where passenger cars are such as family cars, etc., and commercial vehicles are such as large trucks.
- passenger cars are such as family cars, etc.
- commercial vehicles are such as large trucks.
- Medium-sized buses, trucks, pickup trucks, etc. engineering vehicles such as heavy transport vehicles, cranes, loaders, excavators, bulldozers, etc.
- special vehicles including fire trucks, ambulances, RVs, etc.
- first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more features.
- plurality means two or more than two, unless otherwise explicitly and specifically limited.
- the term “above” or “below” a first feature to a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but through additional characteristic contacts between them.
- the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
- “Below”, “below” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
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Abstract
Provided are an electric adjusting structure for a steering column, and a vehicle. The electric adjusting structure for a steering column comprises a support seat (10), a steering column (20), an electric motor (30) and a speed reduction mechanism. The steering column is slidably arranged on the support seat, and comprises a movable outer tube (21) and a steering shaft (23); the electric motor comprises a housing (31) and an output shaft (32), the housing being connected to the movable outer tube; the speed reduction mechanism comprises a worm (40) and a worm gear (50), the worm being connected to the output shaft, the worm gear meshing with the worm, and a gear (52) being coaxially arranged on a gear shaft (51) of the worm gear; a first rack (11) is fixedly arranged on the support seat, and the lengthwise direction of the first rack is arranged parallel to the axial direction of the steering shaft; a second rack (22) is fixedly arranged on the movable outer tube, the second rack and the first rack being arranged in parallel; and the gear respectively meshes with the first rack and the second rack so as to transmit the steering shaft. In the electric adjusting structure for a steering column, the speed reduction mechanism, which comprises the worm gear and the worm, is utilized to drive the gear to mesh with the first rack, which is arranged on the support seat, for transmission, thereby pushing the steering column to perform a linear reciprocating motion; and the electric motor and the steering column are coaxially arranged, such that the amount of space occupied thereby is saved on.
Description
本申请要求于2022年8月17日提交的申请号为202210987326.2、发明名称为“电动转向管柱调节结构”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application with application number 202210987326.2 and the invention name "Electric Steering Column Adjustment Structure" submitted on August 17, 2022, the entire content of which is incorporated into this application by reference.
本申请涉及汽车转向***技术领域,具体涉及一种电动转向管柱调节结构及车辆。This application relates to the technical field of automobile steering systems, and specifically to an electric steering column adjustment structure and a vehicle.
转向***是用来改变或保持车辆行驶或倒退方向的一系列装置,其中,转向管柱用于连接方向盘和转向器,是汽车转向***的重要组件之一。在车辆工程领域中,转向管柱可使转向盘的位置在一定范围内上下、前后调节以适应驾驶员的操作习惯。为了实现方向盘的上下和前后位置的调节,便于实现方向盘空间位置的调节,使得驾驶员方便地依不同需求而变换不同的空间位置。The steering system is a series of devices used to change or maintain the driving or reverse direction of a vehicle. The steering column is used to connect the steering wheel and the steering gear and is one of the important components of the automobile steering system. In the field of vehicle engineering, the steering column allows the position of the steering wheel to be adjusted up and down, forward and backward within a certain range to adapt to the driver's operating habits. In order to realize the adjustment of the up and down and front and rear positions of the steering wheel, it is convenient to adjust the spatial position of the steering wheel, so that the driver can easily change different spatial positions according to different needs.
发明内容Contents of the invention
本申请的目的是提供一种调节速度快且结构简单的电动转向管柱调节结构及车辆。The purpose of this application is to provide an electric steering column adjustment structure and vehicle with fast adjustment speed and simple structure.
为了实现上述目的,本申请采用的技术方案:In order to achieve the above purpose, the technical solution adopted in this application is:
一方面,提供了一种电动转向管柱调节结构,所述电动转向管柱调节结构包括:支座、转向管柱、电机和减速机构;On the one hand, an electric steering column adjustment structure is provided. The electric steering column adjustment structure includes: a support, a steering column, a motor and a reduction mechanism;
所述支座上滑动设置所述转向管柱;The steering column is slidably mounted on the support;
所述转向管柱包括移动外管,所述电机包括壳体和输出轴,所述壳体与所述移动外管连接;The steering column includes a moving outer tube, the motor includes a housing and an output shaft, and the housing is connected to the moving outer tube;
所述减速机构包括蜗杆和蜗轮,所述蜗杆与所述输出轴连接,所述蜗轮与所述蜗杆啮合;The reduction mechanism includes a worm and a worm gear, the worm is connected to the output shaft, and the worm gear is meshed with the worm;
所述蜗轮的齿轮轴上同轴设置有齿轮,所述支座上固定设置有第一齿条,且所述第一齿条的长度方向与所述转向轴的轴线方向平行布置;
A gear is coaxially provided on the gear shaft of the worm gear, a first rack is fixedly provided on the support, and the length direction of the first rack is arranged parallel to the axial direction of the steering shaft;
所述移动外管上固定设置有第二齿条,所述第二齿条和所述第一齿条平行布置;所述齿轮分别与所述第一齿条和所述第二齿条啮合传动转向轴。A second rack is fixedly provided on the moving outer tube, and the second rack and the first rack are arranged in parallel; the gears are meshed with the first rack and the second rack respectively for transmission. Steering shaft.
在一些可能的实现方式中,所述转向管柱还包括转向轴,所述转向轴活动套接在所述移动外管内,所述转向轴与所述输出轴平行布置。In some possible implementations, the steering column further includes a steering shaft, the steering shaft is movably sleeved in the moving outer tube, and the steering shaft is arranged parallel to the output shaft.
在一些可能的实现方式中,所述蜗杆与所述输出轴同轴连接。In some possible implementations, the worm is coaxially connected to the output shaft.
在一些可能的实现方式中,所述第二齿条和所述第一齿条分别位于所述齿轮的上方和下方,且所述第二齿条和所述第一齿条的齿相对布置。In some possible implementations, the second rack and the first rack are respectively located above and below the gear, and the teeth of the second rack and the first rack are arranged oppositely.
在一些可能的实现方式中,所述第二齿条和所述第一齿条间隔位于所述齿轮的周侧,且所述第二齿条和所述第一齿条之间间隔180°。In some possible implementations, the second rack and the first rack are spaced apart on the circumferential side of the gear, and the second rack and the first rack are spaced 180° apart.
在一些可能的实现方式中,所述齿轮轴的轴线与所述转向轴方向垂直布置。In some possible implementations, the axis of the gear shaft is arranged perpendicularly to the direction of the steering axis.
在一些可能的实现方式中,所述齿轮为直齿轮。In some possible implementations, the gear is a spur gear.
在一些可能的实现方式中,所述移动外管与所述壳体活动连接,所述壳体与所述支座活动连接,所述转向轴与所述移动外管活动连接;In some possible implementations, the moving outer tube is movably connected to the housing, the housing is movably connected to the support, and the steering shaft is movably connected to the moving outer tube;
所述移动外管能够相对于所述壳体沿所述转向轴的轴线方向移动,所述壳体能够相对于所述支座沿所述转向轴的轴线方向移动,所述转向轴能够相对于所述移动外管沿所述转向的轴线方向移动。The movable outer tube can move along the axis of the steering shaft relative to the housing, the housing can move along the axis of the steering shaft relative to the support, and the steering shaft can move relative to the bearing. The moving outer tube moves in the direction of the turning axis.
在一些可能的实现方式中,所述转向轴的至少部分延伸至所述移动外管的第一端外侧,所述第二齿条位于所述移动外管的第二端。In some possible implementations, at least part of the steering shaft extends outside the first end of the moving outer tube, and the second rack is located at the second end of the moving outer tube.
另一方面,提供了一种车辆,所述车辆包括本申请的电动转向管柱调节结构。In another aspect, a vehicle is provided that includes the electric steering column adjustment structure of the present application.
与相关技术相比,本申请利用蜗轮蜗杆减速机构作为传动机构,电机通过减速机构带动齿轮与支座上设置的第一齿条啮合传动,由于第一齿条固定设置在支座上,齿轮受到反作用力,带动减速机构、电机相对于支座移动,电机的壳体与转向管柱的移动外管连接,从而带动转向管柱相对于支座移动;与此同时,齿轮与第二齿条啮合,第二齿条固定设置再移动外管上,随着齿轮的旋转,第二齿条在啮合齿的作用下相对于齿轮移动,从而第二齿条带动移动管柱相对于齿轮、减速机构和电机移动,并且移动速度是齿轮、齿轮轴的两倍,从而本申请的电动转向管柱调节结构,能够利用电机、减速机构、齿轮和第一齿条、第二齿条等实现转向管柱的快速移动,达到快速调节的
目的,较为适用于转向管柱的长行程调节,调节时间更短,有利于减少驾驶员的等待时间。Compared with related technologies, this application uses a worm gear reduction mechanism as the transmission mechanism. The motor drives the gear through the reduction mechanism to mesh with the first rack provided on the support. Since the first rack is fixedly provided on the support, the gear is subject to The reaction force drives the reduction mechanism and the motor to move relative to the support. The housing of the motor is connected to the moving outer tube of the steering column, thereby driving the steering column to move relative to the support; at the same time, the gear meshes with the second rack. , the second rack is fixedly placed on the movable outer tube. As the gear rotates, the second rack moves relative to the gear under the action of the meshing teeth, so that the second rack drives the moving pipe column relative to the gear, reduction mechanism and The motor moves, and the moving speed is twice that of the gear and gear shaft. Therefore, the electric steering column adjustment structure of the present application can use the motor, the reduction mechanism, the gear, the first rack, the second rack, etc. to realize the adjustment of the steering column. Move quickly to achieve rapid adjustment Purpose: It is more suitable for long-stroke adjustment of the steering column, and the adjustment time is shorter, which is beneficial to reducing the driver's waiting time.
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.
图1为相关技术中转向管柱调节结构示意图;Figure 1 is a schematic diagram of the steering column adjustment structure in related technology;
图2为本申请中电动转向管柱调节结构整体示意图;Figure 2 is an overall schematic diagram of the electric steering column adjustment structure in this application;
图3为图2中部分结构示意图;Figure 3 is a schematic diagram of part of the structure in Figure 2;
图4为电机和蜗轮蜗杆结构示意图;Figure 4 is a schematic structural diagram of the motor and worm gear;
图5为齿轮与齿条配合示意图。Figure 5 is a schematic diagram of the cooperation between gears and racks.
图1中各标记说明如下:
1、伸缩管总成;2、轴向调节螺杆;3、螺母;4、伸缩电机;5、蜗轮蜗杆减速机
构;The description of each mark in Figure 1 is as follows:
1. Telescopic tube assembly; 2. Axial adjustment screw; 3. Nut; 4. Telescopic motor; 5. Worm gear reduction mechanism;
1、伸缩管总成;2、轴向调节螺杆;3、螺母;4、伸缩电机;5、蜗轮蜗杆减速机
构;The description of each mark in Figure 1 is as follows:
1. Telescopic tube assembly; 2. Axial adjustment screw; 3. Nut; 4. Telescopic motor; 5. Worm gear reduction mechanism;
图2至图5中各标记说明如下:
10、支座;11、第一齿条;
20、转向管柱;21、移动外管;22、第二齿条;23、转向轴;
30、电机;31、壳体;32、输出轴;
40、蜗杆;
50、涡轮;51、齿轮轴;52、齿轮。The descriptions of each mark in Figures 2 to 5 are as follows:
10. Support; 11. First rack;
20. Steering column; 21. Moving outer tube; 22. Second rack; 23. Steering shaft;
30. Motor; 31. Housing; 32. Output shaft;
40. Worm;
50. Turbine; 51. Gear shaft; 52. Gear.
10、支座;11、第一齿条;
20、转向管柱;21、移动外管;22、第二齿条;23、转向轴;
30、电机;31、壳体;32、输出轴;
40、蜗杆;
50、涡轮;51、齿轮轴;52、齿轮。The descriptions of each mark in Figures 2 to 5 are as follows:
10. Support; 11. First rack;
20. Steering column; 21. Moving outer tube; 22. Second rack; 23. Steering shaft;
30. Motor; 31. Housing; 32. Output shaft;
40. Worm;
50. Turbine; 51. Gear shaft; 52. Gear.
为了使本申请所要解决的技术问题、技术方案及有益效果更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clear, this application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.
需要说明的是,当元件被称为“固定于”或“设置于”另一个元件,它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件,它可以是直接连接到另一个元件或间接连接至该另一个元件上。
It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。“若干”的含义是一个或一个以上,除非另有明确具体的限定。In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" means two or more than two, unless otherwise explicitly and specifically limited. "Several" means one or more than one, unless otherwise expressly and specifically limited.
在本申请的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
相关技术公开了以下技术方案:如图1所示,包括可旋转的设置于下管柱总成上的轴向调节螺杆2、设置于伸缩管总成1上与轴向调节螺杆2构成螺旋传动的螺母3、用于提供使轴向调节螺杆2旋转的驱动力的伸缩电机4以及与伸缩电机4和轴向调节螺杆2连接的蜗轮蜗杆减速机构5。轴向调节螺杆2和螺母3相配合,构成丝杆螺母传动机构,伸缩电机4驱动轴向调节螺杆2旋转时,可以使得螺母3做往复直线运动,螺母3带动伸缩管总成1同步做往复直线运动,实现方向盘上下方向位置的调节。The related art discloses the following technical solution: as shown in Figure 1, it includes a rotatable axial adjustment screw 2 provided on the lower column assembly, a telescopic tube assembly 1 and the axial adjustment screw 2 forming a spiral transmission. The nut 3, the telescopic motor 4 used to provide the driving force to rotate the axial adjustment screw 2, and the worm gear reduction mechanism 5 connected with the telescopic motor 4 and the axial adjustment screw 2. The axial adjustment screw 2 and the nut 3 cooperate to form a screw nut transmission mechanism. When the telescopic motor 4 drives the axial adjustment screw 2 to rotate, the nut 3 can make reciprocating linear motion, and the nut 3 drives the telescopic tube assembly 1 to reciprocate synchronously. Linear motion to adjust the up and down position of the steering wheel.
在上述的技术方案中,伸缩电机4与伸缩管总成1的轴芯垂直布置,占用空间大,伸缩电机4转轴的转速经蜗轮蜗杆减速机构5减速、转向后带动轴向调节螺杆2转动,从而带动螺母3做直线运动,螺母3的前进行程或后退行程等于伸缩管总成1的前进行程或后退行程,且调节速度仅仅依靠伸缩电机4的转速,调节速度比较慢。In the above technical solution, the telescopic motor 4 is arranged vertically with the axis of the telescopic tube assembly 1, which occupies a large space. The rotation speed of the rotating shaft of the telescopic motor 4 is decelerated and turned by the worm gear reduction mechanism 5 to drive the axial adjustment screw 2 to rotate. This drives the nut 3 to move linearly. The forward or backward stroke of the nut 3 is equal to the forward or backward stroke of the telescopic tube assembly 1, and the adjustment speed only depends on the rotation speed of the telescopic motor 4, and the adjustment speed is relatively slow.
这种技术方案只能适用于短行程的调节管柱上,在长行程的调节管柱上,调节时间延长,这增加的驾驶员的等待时间,降低了驾驶员的驾驶体验。This technical solution can only be applied to short-stroke adjustment pipes. On long-stroke adjustment pipes, the adjustment time is extended, which increases the driver's waiting time and reduces the driver's driving experience.
图2为本申请中电动转向管柱调节结构整体示意图;图3为图2中部分结构示意图;图4为电机和蜗轮蜗杆结构示意图;图5为齿轮与齿条配合示意图。
Figure 2 is a schematic diagram of the entire electric steering column adjustment structure in this application; Figure 3 is a schematic diagram of the partial structure in Figure 2; Figure 4 is a schematic diagram of the structure of the motor and worm gear; Figure 5 is a schematic diagram of the cooperation between the gear and the rack.
结合图2-5所示,本申请提供的电动转向管柱20调节结构包括:支座10、转向管柱20、电机30和减速机构。As shown in Figures 2-5, the electric steering column 20 adjustment structure provided by this application includes: a support 10, a steering column 20, a motor 30 and a reduction mechanism.
支座10上滑动设置转向管柱20;转向管柱20包括移动外管21,电机30包括壳体31和输出轴32,壳体31与移动外管21连接;减速机构包括蜗杆40和蜗轮50,蜗杆40与输出轴32连接,蜗轮50与蜗杆40啮合。A steering column 20 is slidably disposed on the support 10; the steering column 20 includes a moving outer tube 21, the motor 30 includes a housing 31 and an output shaft 32, and the housing 31 is connected to the moving outer tube 21; the reduction mechanism includes a worm 40 and a worm gear 50 , the worm 40 is connected with the output shaft 32, and the worm gear 50 meshes with the worm 40.
蜗轮50的齿轮轴51上同轴设置有齿轮52,支座10上固定设置有第一齿条11,且第一齿条11的长度方向与转向轴23的轴线方向平行布置;移动外管21上固定设置有第二齿条22,第二齿条22和第一齿条11平行布置;齿轮52分别与第一齿条11和第二齿条22啮合传动转向轴23。A gear 52 is coaxially provided on the gear shaft 51 of the worm gear 50 , a first rack 11 is fixedly provided on the support 10 , and the length direction of the first rack 11 is parallel to the axis direction of the steering shaft 23 ; the mobile outer tube 21 A second rack 22 is fixedly provided on the upper body, and the second rack 22 and the first rack 11 are arranged in parallel; the gear 52 meshes with the first rack 11 and the second rack 22 to drive the steering shaft 23 respectively.
与相关技术相比,本申请省去了丝杆螺母机构,利用蜗轮50蜗杆40减速机构作为传动机构,电机30通过减速机构带动齿轮52与支座10上设置的第一齿条11啮合传动,由于第一齿条11固定设置在支座10上,齿轮52受到反作用力,带动减速机构、电机30相对于支座10移动,电机30的壳体31与转向管柱20的移动外管21连接,从而带动转向管柱20相对于支座10移动。Compared with the related technology, this application omits the screw nut mechanism and uses the worm gear 50 and the worm 40 reduction mechanism as the transmission mechanism. The motor 30 drives the gear 52 through the reduction mechanism to mesh with the first rack 11 provided on the support 10. Since the first rack 11 is fixedly arranged on the support 10, the gear 52 receives a reaction force, driving the reduction mechanism and the motor 30 to move relative to the support 10. The housing 31 of the motor 30 is connected to the moving outer tube 21 of the steering column 20. , thereby driving the steering column 20 to move relative to the support 10 .
与此同时,齿轮52与第二齿条22啮合,第二齿条22固定设置再移动外管21上,随着齿轮52的旋转,第二齿条22在啮合齿的作用下相对于齿轮52移动,从而第二齿条22带动移动管柱相对于齿轮52、减速机构和电机30移动,并且移动速度是齿轮52、齿轮轴51的两倍,从而本申请的电动转向管柱20调节结构,能够利用电机30、减速机构、齿轮52和第一齿条11、第二齿条22等实现转向管柱20的快速移动,达到快速调节的目的,较为适用于转向管柱20的长行程调节,调节时间更短,有利于减少驾驶员的等待时间。At the same time, the gear 52 meshes with the second rack 22. The second rack 22 is fixedly arranged and moves on the outer tube 21. As the gear 52 rotates, the second rack 22 moves relative to the gear 52 under the action of the meshing teeth. moves, so that the second rack 22 drives the moving column to move relative to the gear 52, the reduction mechanism and the motor 30, and the moving speed is twice that of the gear 52 and the gear shaft 51, so that the electric steering column 20 adjustment structure of the present application, The motor 30, the reduction mechanism, the gear 52, the first rack 11, the second rack 22, etc. can be used to realize the rapid movement of the steering column 20 to achieve the purpose of rapid adjustment. It is more suitable for long-stroke adjustment of the steering column 20. The adjustment time is shorter, which helps reduce the driver's waiting time.
在一些可能的实现方式中,齿轮轴51与电机30的壳体31转动连接,齿轮轴51、齿轮52以及蜗轮50能够随电机30一体的移动。齿轮轴51移动过程中,齿轮52与第二齿条22啮合,第二齿条22被推动,沿着与齿轮轴51的移动方向相同的方向移动,第二齿条22的移动速度V2等于齿轮轴51相对于第一齿条11的移动速度V0,加上第二齿条22相对于齿轮轴51的移动速度V1。由于第一齿条11和第二齿条22与相同的齿轮52啮合,因此第一齿条11和第二齿条22相对与齿轮轴51的移动速率相同,移动速度V0和移动速度V1相同,也即移动速度V2等于两倍的移动速度V0,第二齿条22能够带动移动外管21及转向管柱20以两倍的速度移动,能够实现快速调节转向管柱20的轴向位置,快速调节转向盘的上下位置。
In some possible implementations, the gear shaft 51 is rotationally connected to the housing 31 of the motor 30 , and the gear shaft 51 , the gear 52 and the worm gear 50 can move integrally with the motor 30 . During the movement of the gear shaft 51, the gear 52 meshes with the second rack 22, and the second rack 22 is pushed to move in the same direction as the moving direction of the gear shaft 51. The moving speed V2 of the second rack 22 is equal to the gear The moving speed V0 of the shaft 51 relative to the first rack 11 is added to the moving speed V1 of the second rack 22 relative to the gear shaft 51 . Since the first rack 11 and the second rack 22 mesh with the same gear 52, the first rack 11 and the second rack 22 move at the same speed relative to the gear shaft 51, and the moving speed V0 and the moving speed V1 are the same, That is, the moving speed V2 is equal to twice the moving speed V0. The second rack 22 can drive the outer tube 21 and the steering column 20 to move at twice the speed, which can quickly adjust the axial position of the steering column 20. Adjust the up and down position of the steering wheel.
以图3、5为例,电机30带动蜗杆40旋转,蜗杆40带动蜗轮50旋转,蜗轮50带动齿轮轴51旋转,齿轮轴51带动齿轮52旋转,齿轮52沿逆时针方向旋转,在第一齿条11的作用下,第一齿条11推动齿轮52以移动速度V0向左移动;而随着齿轮52旋转,第二齿条22会受到齿轮52的作用,第二齿条22被推动同样的向左移动,第二齿条22相对于齿轮52的移动速度为V1,但是由于齿轮52本身在移动,因此第二齿条22的实际运动速度V2等于齿轮52相对于第一齿条11的移动速度V0,加上第二齿条22相对于齿轮轴51的移动速度V1,如此可以看出,第二齿条22能够以超过齿轮轴51的速度快速的进行移动。Taking Figures 3 and 5 as an example, the motor 30 drives the worm 40 to rotate, the worm 40 drives the worm gear 50 to rotate, the worm gear 50 drives the gear shaft 51 to rotate, the gear shaft 51 drives the gear 52 to rotate, the gear 52 rotates in the counterclockwise direction, and at the first tooth Under the action of the rack 11, the first rack 11 pushes the gear 52 to move to the left at the moving speed V0; and as the gear 52 rotates, the second rack 22 will be affected by the action of the gear 52, and the second rack 22 will be pushed in the same direction. Moving to the left, the moving speed of the second rack 22 relative to the gear 52 is V1, but since the gear 52 itself is moving, the actual moving speed V2 of the second rack 22 is equal to the movement of the gear 52 relative to the first rack 11 The speed V0 is added to the moving speed V1 of the second rack 22 relative to the gear shaft 51. It can be seen that the second rack 22 can move faster than the gear shaft 51.
结合图2所示,在一些可能的实现方式中,转向管柱20还包括转向轴23,转向轴23活动套接在移动外管21内,转向轴23与输出轴32平行布置。转向轴23位于移动外管21内,能够相对于移动外管21转动,并能够随移动外管21沿轴向移动,从而在移动外管21被第二齿条22带动沿轴向移动时,转向轴23进行轴向移动,从而能够带动与转向轴23连接的转向盘轴向移动。As shown in FIG. 2 , in some possible implementations, the steering column 20 also includes a steering shaft 23 . The steering shaft 23 is movably sleeved in the moving outer tube 21 . The steering shaft 23 is arranged parallel to the output shaft 32 . The steering shaft 23 is located in the movable outer tube 21, can rotate relative to the movable outer tube 21, and can move in the axial direction with the movable outer tube 21, so that when the movable outer tube 21 is driven by the second rack 22 to move in the axial direction, The steering shaft 23 moves axially, thereby driving the steering wheel connected to the steering shaft 23 to move axially.
当转向管柱20处于轴向为竖直方向的使用场景时,转向轴23变现为带动转向盘沿竖直方向上下移动,从而能够调节转向盘在驾驶室内的高度位置。When the steering column 20 is in a usage scenario where the axial direction is vertical, the steering shaft 23 drives the steering wheel to move up and down in the vertical direction, so that the height position of the steering wheel in the cab can be adjusted.
结合图2-图5所示,在一些可能的实现方式中,蜗杆40与输出轴32同轴连接,蜗杆40与转向轴23的轴线方向平行,也即蜗杆40与第一齿条11、第二齿条22同时平行。示例性地,电机30包括定子和转子,输出轴32与转子同轴连接,或者转子的轴向一端延伸到壳体31外部,形成为该输出轴32。As shown in FIGS. 2 to 5 , in some possible implementations, the worm 40 is coaxially connected to the output shaft 32 , and the worm 40 is parallel to the axis direction of the steering shaft 23 , that is, the worm 40 is connected to the first rack 11 and the first rack 11 . The two racks 22 are parallel at the same time. Exemplarily, the motor 30 includes a stator and a rotor, and the output shaft 32 is coaxially connected to the rotor, or one axial end of the rotor extends outside the housing 31 to form the output shaft 32 .
受限于电机30的结构,电机30在轴向的尺寸较大,本申请中电机30的转子、输出轴32分别与转向轴23平行布置,当电机30布置在转向管柱20一侧时,电机30所占据的转向管柱20的横向尺寸较小,整个电动转向管柱20调节结构的横向尺寸也较小,这有利于减小电动转向管柱20调节结构的横向体积,减小电动转向管柱20调节结构的空间占用,减小电动转向管柱20调节结构在车辆中的占用体积,提高车辆的空间利用率。Limited by the structure of the motor 30, the size of the motor 30 in the axial direction is relatively large. In this application, the rotor and the output shaft 32 of the motor 30 are respectively arranged parallel to the steering shaft 23. When the motor 30 is arranged on one side of the steering column 20, The lateral size of the steering column 20 occupied by the motor 30 is smaller, and the lateral size of the entire electric steering column 20 adjustment structure is also smaller, which is beneficial to reducing the lateral volume of the electric steering column 20 adjustment structure and reducing the electric steering The space occupied by the adjustment structure of the column 20 reduces the volume occupied by the adjustment structure of the electric steering column 20 in the vehicle and improves the space utilization of the vehicle.
进一步的,轴向尺寸较大的蜗杆40同样以平行于转动轴的方式布置,不仅有利于控制电动转向管柱20调节结构的横向尺寸,还能够充分利用轴向空间增加蜗杆40的行程,从而增加了蜗轮50、齿轮轴51以及齿轮52的运动行程,进而增加转向管柱20的运动行程,增加转向轴23、转向盘的调节行程。
Furthermore, the worm 40 with a larger axial size is also arranged parallel to the rotation axis, which is not only beneficial to controlling the lateral size of the adjustment structure of the electric steering column 20, but also makes full use of the axial space to increase the stroke of the worm 40, thereby The movement strokes of the worm gear 50, the gear shaft 51 and the gear 52 are increased, thereby increasing the movement strokes of the steering column 20 and increasing the adjustment strokes of the steering shaft 23 and the steering wheel.
结合图2-图5所示,在一些可能的实现方式中,第二齿条22和第一齿条11间隔位于齿轮52的周侧,且第二齿条22和第一齿条11之间间隔180°。As shown in FIGS. 2 to 5 , in some possible implementations, the second rack 22 and the first rack 11 are spaced apart from each other on the circumferential side of the gear 52 , and between the second rack 22 and the first rack 11 180° apart.
第二齿条22和第一齿条11分别啮合连接在齿轮52的不同位置,并且第二齿条22和第一齿条11之间间隔180°,能够保证齿轮52相对于第一齿条11移动时,第二齿条22能够沿同向、且两倍速度的移动。The second rack 22 and the first rack 11 are meshed and connected at different positions of the gear 52 respectively, and the distance between the second rack 22 and the first rack 11 is 180°, which can ensure that the gear 52 is relative to the first rack 11 When moving, the second rack 22 can move in the same direction and at twice the speed.
以图3、5中所示的方位来看,第二齿条22位于齿轮52的上方,第一齿条11位于齿轮52的下方,并且第二齿条22和第一齿条11分别与齿轮52啮合。Viewed from the orientation shown in Figures 3 and 5, the second rack 22 is located above the gear 52, the first rack 11 is located below the gear 52, and the second rack 22 and the first rack 11 are respectively in contact with the gear. 52 mesh.
可选地,第一齿条11、第二齿条22和齿轮52的模数相同。其中,模数是决定齿大小的因素。齿条模数为两齿间的距离,也就是相邻两轮齿同侧齿廓间的齿距p与圆周率π的比值。齿轮52的模数m=分度圆直径d/齿数z=齿距p/圆周率π。Optionally, the modules of the first rack 11, the second rack 22 and the gear 52 are the same. Among them, the module is the factor that determines the tooth size. The rack module is the distance between two teeth, which is the ratio of the tooth pitch p between two adjacent teeth on the same side of the tooth profile and the pi ratio π. Module m of the gear 52 = pitch circle diameter d/number of teeth z = tooth pitch p/pi ratio π.
相同模数的第一齿条11和第二齿条22,能够保证与齿轮52的可靠啮合,并且齿轮52转动某一角度时,第一齿条11与齿轮52的相对位移量和第二齿条22与齿轮52的相对位移量相同,这有利于准确的设计电动转向管柱20调节结构的调节参数。The first rack 11 and the second rack 22 of the same module can ensure reliable meshing with the gear 52, and when the gear 52 rotates at a certain angle, the relative displacement of the first rack 11 and the gear 52 is equal to that of the second rack 11. The relative displacement of the bar 22 and the gear 52 is the same, which is beneficial to accurately designing the adjustment parameters of the adjustment structure of the electric steering column 20 .
结合图2-图5所示,在一些可能的实现方式中,齿轮轴51的轴线与转向轴23方向垂直布置。利用垂直布置的齿轮轴51和转向轴23,能够简化齿轮52和转向轴23的啮合场景,提高啮合传动的稳定性和可靠性。As shown in FIGS. 2 to 5 , in some possible implementations, the axis of the gear shaft 51 is arranged perpendicularly to the direction of the steering shaft 23 . Utilizing the vertically arranged gear shaft 51 and the steering shaft 23 can simplify the meshing scenario of the gear 52 and the steering shaft 23 and improve the stability and reliability of the meshing transmission.
结合图2-图5所示,在一些可能的实现方式中,齿轮52为直齿轮52。利用直齿轮52能够将齿轮52的旋转运动转化为齿轮轴51、第二齿条22的直线运动。As shown in FIGS. 2-5 , in some possible implementations, the gear 52 is a spur gear 52 . The spur gear 52 can be used to convert the rotational motion of the gear 52 into the linear motion of the gear shaft 51 and the second rack 22 .
结合图2-图5所示,在一些可能的实现方式中,移动外管21与壳体31活动连接,壳体31与支座10活动连接,转向轴23与移动外管21活动连接。As shown in FIGS. 2 to 5 , in some possible implementations, the movable outer tube 21 is movably connected to the housing 31 , the housing 31 is movably connected to the support 10 , and the steering shaft 23 is movably connected to the mobile outer tube 21 .
移动外管21能够相对于壳体31沿转向轴23的轴线方向移动,壳体31能够相对于支座10沿转向轴23的轴线方向移动,转向轴23能够相对于移动外管21沿转向的轴线方向移动。The movable outer tube 21 can move along the axial direction of the steering shaft 23 relative to the housing 31 , the housing 31 can move along the axial direction of the steering shaft 23 relative to the support 10 , and the steering shaft 23 can move along the steering axis relative to the movable outer tube 21 . Movement in axis direction.
可选地,移动外管21与电机30的壳体31的其中一个上设有导向槽,支座10或者移动外管21的其中另一个上导轨部,导向槽和导轨部滑动配合,从而能够支持支座10和移动外管21的直线滑动。Optionally, one of the movable outer tube 21 and the housing 31 of the motor 30 is provided with a guide groove, the support 10 or the other upper guide rail portion of the movable outer tube 21, and the guide groove and the guide rail portion are slidably matched, so that the Support the linear sliding of the support 10 and the moving outer tube 21.
另一可选地,支座10或者移动外管21的其中一个上设有导向槽,支座10或者移动外管21的其中另一个上导轨部,导向槽和导轨部滑动配合,从而能够支持支座10和移动外管21的直线滑动。
Alternatively, one of the support 10 or the movable outer tube 21 is provided with a guide groove, and the other of the support 10 or the movable outer tube 21 has a guide rail portion. The guide groove and the guide rail portion are in sliding fit, thereby being able to support The support 10 and the moving outer tube 21 slide linearly.
如图2-图5所示,本实施例提供了一种电动转向管柱调节结构,包括支座10,支座10上滑动设置有转向管柱20,电机30的壳体31与转向管柱20的移动外管21连接,转向管柱20的转向轴23(该转向轴23的轴线与转向管柱20管芯的轴线重合)与电机30的输出轴32(该输出轴32的轴线与电机30轴芯的轴线重合)平行布置,电机30上同轴转动设置有蜗杆40,蜗轮50与蜗杆40啮合构成蜗轮蜗杆减速机构,蜗轮50的齿轮轴51上同轴设置有齿轮52,齿轮52与支座10上设置的第一齿条11啮合传动,第一齿条11的长度方向与转向管柱20转向轴23方向平行布置。As shown in Figures 2 to 5, this embodiment provides an electric steering column adjustment structure, which includes a support 10. A steering column 20 is slidably provided on the support 10, and the housing 31 of the motor 30 is connected to the steering column. The moving outer tube 21 of the steering column 20 is connected to the steering shaft 23 of the steering column 20 (the axis of the steering shaft 23 coincides with the axis of the steering column 20 core) and the output shaft 32 of the motor 30 (the axis of the output shaft 32 is consistent with the motor). The axes of the 30 shaft cores coincide with each other) and are arranged in parallel. A worm 40 is arranged on the motor 30 for coaxial rotation. The worm gear 50 meshes with the worm 40 to form a worm gear reduction mechanism. A gear 52 is arranged coaxially on the gear shaft 51 of the worm gear 50. The gear 52 and the worm 40 are arranged in parallel. The first rack 11 provided on the support 10 engages in transmission, and the length direction of the first rack 11 is parallel to the direction of the steering axis 23 of the steering column 20 .
其中,蜗轮50与蜗杆40啮合构成蜗轮蜗杆减速机构能够起到对电机30输出的动力进行减速并增加扭矩的作用。Among them, the worm gear 50 meshes with the worm 40 to form a worm gear reduction mechanism, which can decelerate the power output by the motor 30 and increase the torque.
长度调节指令启动后,电机30启动运转,通过蜗轮50与蜗杆40减速增矩后,带动齿轮轴51转动,齿轮轴51上设置的齿轮52与固定在支座10上的第一齿条11啮合,在齿轮轴旋转过程中,齿轮轴51会带动电机30并推动转向管柱20的移动外管21沿着其轴向伸长或缩短,从而实现调节的目的,与相关技术相比,本申请省去了丝杆螺母机构,利用本身就必需的蜗轮蜗杆减速机构作为传动机构,带动齿轮52与支座10上设置的第一齿条11啮合传动,从而推动转向管柱20做直线往复运动,且电机30与转向管柱20同轴布置,节省占地空间。After the length adjustment command is started, the motor 30 starts running. After the worm gear 50 and the worm 40 decelerate and increase torque, the gear shaft 51 is driven to rotate. The gear 52 provided on the gear shaft 51 meshes with the first rack 11 fixed on the support 10 , during the rotation of the gear shaft, the gear shaft 51 will drive the motor 30 and push the steering column 20 to move the outer tube 21 to extend or shorten along its axial direction, thereby achieving the purpose of adjustment. Compared with related technologies, this application The screw nut mechanism is omitted, and the necessary worm gear reduction mechanism is used as the transmission mechanism to drive the gear 52 to mesh with the first rack 11 provided on the support 10, thereby pushing the steering column 20 to perform linear reciprocating motion. Moreover, the motor 30 and the steering column 20 are arranged coaxially, saving space.
作为本申请的优选方案,移动外管21上固定有第二齿条22,第二齿条22和第一齿条11平行布置,齿轮52与第二齿条22啮合传动。长度调节指令启动后,电机30启动运转,通过蜗轮50与蜗杆40减速增扭后,带动齿轮轴51转动,齿轮轴51上设置的齿轮52与支座10上设置的第一齿条11啮合,在齿轮轴51旋转过程中,齿轮轴51会带动电机30及第二齿条22移动,同时齿轮52与第二齿条22啮合后,会带动第二齿条22相对于齿轮52移动,即第二齿条22会以两倍于齿轮轴51的速度移动,达到增速的目的,适用于长行程调节管柱上,调节时间延减少,减少的驾驶员的等待时间。As a preferred solution of this application, a second rack 22 is fixed on the moving outer tube 21 . The second rack 22 and the first rack 11 are arranged in parallel. The gear 52 meshes with the second rack 22 for transmission. After the length adjustment command is started, the motor 30 starts running. After the worm gear 50 and the worm 40 decelerate and increase the torque, the gear shaft 51 is driven to rotate. The gear 52 provided on the gear shaft 51 meshes with the first rack 11 provided on the support 10. During the rotation of the gear shaft 51, the gear shaft 51 will drive the motor 30 and the second rack 22 to move. At the same time, after the gear 52 meshes with the second rack 22, it will drive the second rack 22 to move relative to the gear 52, that is, the second rack 22 will move relative to the gear 52. The second rack 22 will move at twice the speed of the gear shaft 51 to achieve the purpose of speed increase. It is suitable for long-stroke adjustment pipe strings, reducing the adjustment time delay and reducing the driver's waiting time.
如图5所示,第二齿条22和第一齿条11分置于齿轮52的上方和下方,且第二齿条22和第一齿条11的齿相对布置。第二齿条22和第一齿条11将齿轮52夹置于中间,一方面实现啮合传动的,另一方面还对齿轮52上下方进行限位,齿轮52受力均匀,防止其发生抖动,进一步保证了转向管柱20移动的平稳性。As shown in FIG. 5 , the second rack 22 and the first rack 11 are respectively placed above and below the gear 52 , and the teeth of the second rack 22 and the first rack 11 are arranged oppositely. The second rack 22 and the first rack 11 sandwich the gear 52 in the middle. On the one hand, they realize meshing transmission, and on the other hand, they also limit the upper and lower positions of the gear 52. The force on the gear 52 is even, preventing it from shaking. This further ensures the smoothness of movement of the steering column 20 .
优选的,蜗轮50的齿轮轴51的轴线与转向管柱20转向轴23方向垂直布置,齿轮52为直齿轮。
Preferably, the axis of the gear shaft 51 of the worm gear 50 is arranged perpendicularly to the direction of the steering axis 23 of the steering column 20, and the gear 52 is a spur gear.
为了防止转向管柱20运动发生倾斜,移动外管21与支座10之间通过导向槽构成直线导向配合,导向槽的长度与转向管柱20转向轴23方向平行布置,从而保证转向管柱20直线运动的平稳性。In order to prevent the steering column 20 from tilting during movement, a linear guide fit is formed between the movable outer tube 21 and the support 10 through a guide groove. The length of the guide groove is arranged parallel to the direction of the steering axis 23 of the steering column 20 to ensure that the steering column 20 Smoothness of linear motion.
同理,为了防止电机30启动后绕其自身轴线旋转,电机30的壳体31与第一齿条11通过导向槽构成直线导向配合,导向槽的长度与转向管柱20转向轴23方向平行布置,从而保证转向管柱20直线运动的平稳性。Similarly, in order to prevent the motor 30 from rotating around its own axis after starting, the housing 31 of the motor 30 and the first rack 11 form a linear guide fit through a guide groove, and the length of the guide groove is arranged parallel to the direction of the steering axis 23 of the steering column 20 , thereby ensuring the stability of the linear motion of the steering column 20.
进一步的,蜗杆40同轴连接在电机30的转子上。电机30的转子的轴线与输出轴32的轴线、电机30轴芯的轴线重合。蜗杆40与转子的连接方式可以是一体连接,也可以是利用联轴器连接。电机30的转子带动蜗杆40沿相同的轴旋转。Further, the worm 40 is coaxially connected to the rotor of the motor 30 . The axis of the rotor of the motor 30 coincides with the axis of the output shaft 32 and the axis of the shaft core of the motor 30 . The worm 40 and the rotor may be connected integrally or connected using a coupling. The rotor of the motor 30 drives the worm 40 to rotate along the same axis.
第二齿条22设置在移动外管21后端底部位置处,这种结构能够保证在不影响传动机构动作的前提下,又能够实现占用空间最小的效果。The second rack 22 is disposed at the bottom of the rear end of the movable outer tube 21. This structure can ensure that it takes up the least space without affecting the action of the transmission mechanism.
优选的,电机30位于转向管柱20外侧,整体机构的高度适中,占用空间小。Preferably, the motor 30 is located outside the steering column 20, and the height of the overall mechanism is moderate and takes up little space.
另一方面,本实施例提供了一种车辆,车辆包括本申请的电动转向管柱调节结构。On the other hand, this embodiment provides a vehicle including the electric steering column adjustment structure of the present application.
本实施例的车辆包括本申请的电动转向管柱调节结构,具有本申请的全部有益技术效果。The vehicle of this embodiment includes the electric steering column adjustment structure of the present application and has all the beneficial technical effects of the present application.
在一些示例中,车辆可以是具有转向盘***的随意形式的车辆,这包括但不限于乘用车、商用车、工程车辆、特种车辆,其中乘用车例如家用轿车等等,商用车例如大中型客车、货车、皮卡等等,工程车辆例如重型运输车辆、吊车、装载机、挖掘机、推土机等等,特种车辆包括消防车、救护车、房车等等。In some examples, the vehicle may be any form of vehicle with a steering wheel system, including but not limited to passenger cars, commercial vehicles, engineering vehicles, special vehicles, where passenger cars are such as family cars, etc., and commercial vehicles are such as large trucks. Medium-sized buses, trucks, pickup trucks, etc.; engineering vehicles such as heavy transport vehicles, cranes, loaders, excavators, bulldozers, etc.; special vehicles including fire trucks, ambulances, RVs, etc.
需要指出的是,在本申请中,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。It should be noted that in this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.
除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
Unless otherwise expressly provided and limited, the term "above" or "below" a first feature to a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but through additional characteristic contacts between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “below” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
在本说明书的描述中,参考术语“某些实施方式”、“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。In the description of this specification, reference is made to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples." By description it is meant that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application.
以上所述仅为本申请的实施例,并不用以限制本申请,凡在本申请的原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
The above are only examples of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.
Claims (10)
- 一种电动转向管柱调节结构,其中,所述电动转向管柱调节结构包括:支座(10)、转向管柱(20)、电机(30)和减速机构;An electric steering column adjustment structure, wherein the electric steering column adjustment structure includes: a support (10), a steering column (20), a motor (30) and a deceleration mechanism;所述支座(10)上滑动设置所述转向管柱(20);The steering column (20) is slidably mounted on the support (10);所述转向管柱(20)包括移动外管(21),所述电机(30)包括壳体(31)和输出轴(32),所述壳体(31)与所述移动外管(21)连接;The steering column (20) includes a moving outer tube (21), the motor (30) includes a housing (31) and an output shaft (32), and the housing (31) and the moving outer tube (21) )connect;所述减速机构包括蜗杆(40)和蜗轮(50),所述蜗杆(40)与所述输出轴(32)连接,所述蜗轮(50)与所述蜗杆(40)啮合;The reduction mechanism includes a worm (40) and a worm gear (50), the worm (40) is connected to the output shaft (32), and the worm gear (50) meshes with the worm (40);所述蜗轮(50)的齿轮轴(51)上同轴设置有齿轮(52),所述支座(10)上固定设置有第一齿条(11),且所述第一齿条(11)的长度方向与所述转向轴(23)的轴线方向平行布置;A gear (52) is coaxially provided on the gear shaft (51) of the worm gear (50), a first rack (11) is fixedly provided on the support (10), and the first rack (11) ) is arranged parallel to the axis direction of the steering shaft (23);所述移动外管(21)上固定设置有第二齿条(22),所述第二齿条(22)和所述第一齿条(11)平行布置;所述齿轮(52)分别与所述第一齿条(11)和所述第二齿条(22)啮合传动转向轴。A second rack (22) is fixedly provided on the movable outer tube (21), and the second rack (22) and the first rack (11) are arranged in parallel; the gears (52) are respectively connected with the first rack (11). The first rack (11) and the second rack (22) engage the transmission steering shaft.
- 根据权利要求1所述的电动转向管柱调节结构,其中,所述转向管柱(20)还包括转向轴(23),所述转向轴(23)活动套接在所述移动外管(21)内,所述转向轴(23)与所述输出轴(32)平行布置。The electric steering column adjustment structure according to claim 1, wherein the steering column (20) further includes a steering shaft (23), and the steering shaft (23) is movably sleeved on the moving outer tube (21). ), the steering shaft (23) and the output shaft (32) are arranged in parallel.
- 根据权利要求2所述的电动转向管柱调节结构,其中,所述蜗杆(40)与所述输出轴(32)同轴连接。The electric steering column adjustment structure according to claim 2, wherein the worm (40) and the output shaft (32) are coaxially connected.
- 根据权利要求1至3中任一项所述的电动转向管柱调节结构,其中,所述第二齿条(22)和所述第一齿条(11)分别位于所述齿轮(52)的上方和下方,且所述第二齿条(22)和所述第一齿条(11)的齿相对布置。The electric steering column adjustment structure according to any one of claims 1 to 3, wherein the second rack (22) and the first rack (11) are respectively located at the end of the gear (52). Above and below, the teeth of the second rack (22) and the first rack (11) are arranged oppositely.
- 根据权利要求1至3中任一项所述的电动转向管柱调节结构,其中,所述第二齿条(22)和所述第一齿条(11)间隔位于所述齿轮(52)的周侧,所述第二齿条(22)和所述第一齿条(11)之间间隔180°。 The electric steering column adjustment structure according to any one of claims 1 to 3, wherein the second rack (22) and the first rack (11) are spaced apart from the gear (52). On the circumferential side, the second rack (22) and the first rack (11) are spaced 180° apart.
- 根据权利要求1至5中任一项所述的电动转向管柱调节结构,其中,所述齿轮轴(51)的轴线与所述转向轴(23)方向垂直布置。The electric steering column adjustment structure according to any one of claims 1 to 5, wherein the axis of the gear shaft (51) is arranged perpendicularly to the direction of the steering shaft (23).
- 根据权利要求6所述的电动转向管柱调节结构,其中,所述齿轮(52)为直齿轮。The electric steering column adjustment structure according to claim 6, wherein the gear (52) is a spur gear.
- 根据权利要求1至7中任一项所述的电动转向管柱调节结构,其中,所述移动外管(21)与所述壳体(30)活动连接,所述壳体(30)与所述支座(10)活动连接,所述转向轴(23)与所述移动外管(21)活动连接;The electric steering column adjustment structure according to any one of claims 1 to 7, wherein the moving outer tube (21) is movably connected to the housing (30), and the housing (30) is connected to the housing (30). The support (10) is movably connected, and the steering shaft (23) is movably connected with the mobile outer tube (21);所述移动外管(21)能够相对于所述壳体(30)沿所述转向轴(23)的轴线方向移动,所述壳体(30)能够相对于所述支座(10)沿所述转向轴(23)的轴线方向移动,所述转向轴(23)能够相对于所述移动外管(21)沿所述转向轴(23)的轴线方向移动。The movable outer tube (21) can move along the axial direction of the steering shaft (23) relative to the housing (30), and the housing (30) can move along any direction relative to the support (10). The steering shaft (23) moves in the axial direction, and the steering shaft (23) can move in the axial direction of the steering shaft (23) relative to the moving outer tube (21).
- 根据权利要求1至8中任一项所述的电动转向管柱调节结构,其中,所述转向轴(23)的至少部分延伸至所述移动外管(21)的第一端外侧,所述第二齿条(22)位于所述移动外管(21)的第二端。The electric steering column adjustment structure according to any one of claims 1 to 8, wherein at least part of the steering shaft (23) extends to the outside of the first end of the moving outer tube (21), and the The second rack (22) is located at the second end of the moving outer tube (21).
- 一种车辆,所述车辆包括权利要求1至9中任一项所述的电动转向管柱调节结构。 A vehicle including the electric steering column adjustment structure according to any one of claims 1 to 9.
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CN202210987326.2 | 2022-08-17 | ||
CN202210987326.2A CN115195846A (en) | 2022-08-17 | 2022-08-17 | Electric steering column adjusting structure |
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DE102019114991A1 (en) * | 2019-06-04 | 2020-12-10 | Bayerische Motoren Werke Aktiengesellschaft | Steering column cover and steering column with a steering column cover |
US11884316B2 (en) * | 2021-10-27 | 2024-01-30 | Steering Solutions Ip Holding Corporation | Axially adjustable steering column assembly |
US11999408B2 (en) * | 2022-07-12 | 2024-06-04 | Steering Solutions Ip Holding Corporation | Translating power adjustable steering column with geared rack for an absolute sensor |
CN115195846A (en) * | 2022-08-17 | 2022-10-18 | 奇瑞汽车股份有限公司 | Electric steering column adjusting structure |
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- 2022-08-17 CN CN202210987326.2A patent/CN115195846A/en active Pending
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