WO2020156457A1 - 一种标定支架 - Google Patents

一种标定支架 Download PDF

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Publication number
WO2020156457A1
WO2020156457A1 PCT/CN2020/073851 CN2020073851W WO2020156457A1 WO 2020156457 A1 WO2020156457 A1 WO 2020156457A1 CN 2020073851 W CN2020073851 W CN 2020073851W WO 2020156457 A1 WO2020156457 A1 WO 2020156457A1
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WO
WIPO (PCT)
Prior art keywords
worm
rod
fixed rod
rack
worm wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/073851
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English (en)
French (fr)
Inventor
刘连军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autel Intelligent Technology Corp Ltd
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Autel Intelligent Technology Corp Ltd
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Filing date
Publication date
Priority claimed from CN201910218472.7A external-priority patent/CN111521210A/zh
Application filed by Autel Intelligent Technology Corp Ltd filed Critical Autel Intelligent Technology Corp Ltd
Publication of WO2020156457A1 publication Critical patent/WO2020156457A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00

Definitions

  • This application relates to the technical field of vehicle maintenance and equipment calibration, in particular to a calibration bracket.
  • the Advanced Driver Assistant System uses various sensors installed on the car to collect environmental data inside and outside the car at the first time to identify, detect and detect static and dynamic objects. Tracking and other technical processing, which can allow the driver to detect possible dangers in the fastest time, to attract attention and improve safety of active safety technology.
  • the sensors used in ADAS mainly include cameras, radars, lasers and ultrasonics, which can detect light, heat, pressure or other variables used to monitor the state of the car. They are usually located on the front and rear bumpers, side mirrors, steering column or windshield. On the glass. During the use of the vehicle, vibration, collision, environmental temperature and humidity, etc. will change the physical installation status of the above-mentioned sensors, so it needs to be calibrated or calibrated irregularly.
  • an embodiment of the present invention provides a calibration bracket that can realize self-locking after height adjustment.
  • a calibration bracket includes:
  • a fixed rod, the fixed rod is installed on the base
  • a movable rod is connected to the fixed rod, and the movable rod can move relative to the fixed rod along the length of the fixed rod;
  • a drive mechanism the drive mechanism includes a rack, a worm, and a worm wheel
  • the rack is fixedly mounted on the moving rod
  • the rack is arranged along the length of the moving rod
  • the worm and the worm wheel Are mounted on the fixed rod
  • the worm gear is respectively meshed with the worm and the rack
  • the worm can drive the worm wheel to rotate
  • the worm wheel drives the rack along the fixed rod through rotation Move in the length direction of the moving rod, so that the movable rod moves relative to the fixed rod along the length of the fixed rod;
  • a support assembly the support assembly is installed on the moving rod, and is used to support a calibration element, and the calibration element is used to calibrate a device in a driving assistance system of a vehicle.
  • the worm when the worm does not drive the worm wheel to rotate, the worm and the worm wheel are self-locked, so that the moving rod is stationary relative to the fixed rod.
  • the pitch angle of the worm is smaller than the equivalent friction angle of contact between the worm and the worm wheel, so that the worm and the worm wheel are self-locking.
  • the angle range of the pitch angle of the worm is [3.1°, 3.2°].
  • the worm can rotate around a first rotation axis, and the worm wheel can rotate around a second rotation axis;
  • the first rotation axis is perpendicular to the rack, and the second rotation axis is perpendicular to the rack.
  • the driving mechanism further includes a driving member for driving the worm to rotate around the first rotation axis.
  • the driving member includes a handle, and the handle is connected with the worm;
  • the rotation axis of the handle coincides with the rotation axis of the worm, and the handle is used to drive the worm to rotate.
  • a limiting member is provided on the movable rod, and the limiting member is located in the fixed rod;
  • the inner wall of the fixed rod is provided with a flange, and the flange is close to the top end of the fixed rod;
  • the moving rod moves relative to the fixed rod until the stopper abuts the flange, the moving rod stops moving.
  • the rack is a helical rack that meshes with the worm gear, and the gear and the worm gear have the same modulus.
  • the driving mechanism further includes a housing, and the housing is mounted on the fixed rod;
  • the worm and the worm wheel are both installed in the housing;
  • An opening is provided on the housing, and the worm gear part engages with the rack through the opening.
  • the fixed rod is sleeved outside the movable rod.
  • one of the fixed rod and the movable rod includes a guide rail, and the movable rod is guided by the guide rail to move along the length direction of the fixed rod.
  • the driving mechanism in the embodiment of the present invention includes the rack, the worm and the worm wheel, the worm wheel and the worm are mounted on the fixed rod, and the rack is mounted
  • the worm wheel is respectively engaged with the worm and the rack
  • the rotation of the worm can drive the worm wheel to rotate
  • the rotation of the worm wheel can drive the rack along the fixed rod.
  • Move up and down in the length direction and finally drive the moving rod to move up and down along the length of the fixed rod.
  • the worm and the worm wheel can be self-locked, so that the moving rod can be moved along the fixed rod.
  • the length direction of the rod relative to the fixed rod moves to any position to realize self-locking.
  • Fig. 1 is a schematic structural diagram of a calibration bracket provided by one of the embodiments of the present invention
  • Fig. 2 is a schematic structural view of the driving mechanism of the calibration bracket shown in Fig. 1;
  • Fig. 3 is a schematic structural diagram of the calibration bracket shown in Fig. 1, in which some elements are omitted;
  • Figure 4 is a schematic structural diagram of a calibration bracket according to some embodiments, in which some elements are omitted;
  • Fig. 5 is a schematic structural diagram of a calibration bracket provided by another embodiment.
  • the calibration bracket 100 provided by one embodiment of the present invention includes a fixed rod 10, a moving rod 20 and a driving mechanism 30, the moving rod 20 is sleeved in the fixed rod 10,
  • the moving rod 20 can move relative to the fixed rod 10 along the length direction of the fixed rod 10, and the driving mechanism 30 is installed on the fixed rod 10 for driving the moving rod 20 It moves relative to the fixed rod 10 along the length direction of the fixed rod 10.
  • a bottom plate 11 is provided at one end of the fixed rod 10, and the bottom plate 11 is installed on the ground or other supporting surfaces.
  • the end of the movable rod 20 away from the fixed rod 10 is used to support the calibration element.
  • the fixed rod 10 and the movable rod 20 are respectively square through, and the fixed rod 10 is tightly sleeved on the movable rod 20, so that the movable rod 20 can only move along the
  • the length direction of the fixed rod 10 moves relative to the fixed rod 10 and can prevent the movable rod 20 from moving in other directions relative to the fixed rod 10.
  • the fixed rod can be used as the inner rod
  • the movable rod can be used as the outer rod.
  • the driving mechanism 30 is installed on the fixed rod 10 to drive the movable rod 20 along the fixed rod 10.
  • the length direction of ⁇ moves relative to the fixed rod 10.
  • the fixed rod 10 and the movable rod 20 may also be pipes of other shapes, for example, a pipe with a polygonal cross section that matches with each other, so that the movable rod The member 20 can only move relative to the fixed rod 10 along the length direction of the fixed rod 10 and can prevent the movable rod 20 from moving in other directions relative to the fixed rod 10.
  • “cooperating with each other” does not necessarily require that the cross section of the fixed rod 10 and the movable rod 20 must be the same.
  • the cross section of the fixed rod 10 provided outside may be hexagonal, and the cross section of the movable rod 20 provided inside may be Being a quadrilateral connected with the hexagon, the effect that the movable rod 20 can only move relative to the fixed rod 10 along the length direction of the fixed rod 10 can also be achieved.
  • the cross section of the fixed rod 10 and the movable rod 20 can also be elliptical cylindrical pipes that cooperate with each other, and the elliptical cross section can also restrict relative rotation between the two to a certain extent.
  • the fixed rod 10 and the movable rod 20 may also be cylindrical pipes with a circular cross-section.
  • the fixed rod 10 can be prevented from rotating relative to the movable rod 20 by a guide mechanism.
  • a simple guide mechanism is a guide rail and a sliding block device matched with it.
  • a guide rail can be set on one of the fixed rod 10 and the movable rod 20 at the contact surface, and the other Slider devices such as bumps, plastic strips, rollers, balls, gears, etc. are installed on the upper side.
  • the guide rail can be a groove, a linear protrusion, a rack, etc. additionally provided on the pipe wall of the rod, or a groove, a linear protrusion, or between two linear protrusions formed on the pipe wall of the rod.
  • the formed grooves, that is, the rods use special-shaped tube walls, and the tube wall itself has grooves, linear protrusions, etc., which can be used as guide rails.
  • the slider device can be an additional component that is additionally provided on the pipe wall of the rod, or it can be a protruding structure formed by the pipe wall of the rod itself, without the need to provide an additional component on the pipe wall of the rod.
  • racks and other mechanisms that achieve transmission through meshing also have a guiding effect, and this specification also includes them in the category of guide rails.
  • the gear and rack transmission mechanism described in the following embodiments can also achieve the guiding effect.
  • the rack can be arranged in the groove guide rail.
  • the setting positions of the guide rail and the slider device can be interchanged, the guide rail can be set on the moving rod, and the slider device can be set on the fixed rod, or they can be interchanged.
  • the guide mechanism is not limited to the fixed rod 10 and the movable rod 20 with a circular cross-section.
  • the fixed rod 10 and the movable rod 20 with other cross-sectional shapes can also be used with guide mechanisms to enhance the guiding effect, and Obtain more stable or less frictional relative movement.
  • the guide rails may not be used, and only the linear motion device is used to obtain a more stable or less frictional relative movement. At this time, the non-circular external rod itself plays a guiding role.
  • the driving mechanism 30 includes a rack 31, a housing 32, a driving member, and a transmission assembly.
  • the driving member includes a handle 33
  • the transmission assembly includes a worm 34 and a worm gear 35.
  • the rack 31 is fixedly installed on the movable rod 20, and the rack 31 is arranged along the length of the movable rod 20, and the rack 31 can drive the movable rod 20 relative to the fixed rod.
  • the rod 10 moves.
  • the housing 32 includes a housing 320 and a back plate 322.
  • the housing 320 and the back plate 322 together form a receiving cavity, and the back plate 322 is fixedly mounted on the fixed rod 10, on the back plate 322 With openings.
  • the handle 33 is installed on a side of the housing 320 away from the back plate 322, and the handle 33 can rotate around the first rotation axis O1.
  • the transmission assembly can make the movement of the moving rod 20 relative to the fixed rod 10 more accurate and labor-saving, which is beneficial to accurately determining the height of the calibration bracket 100.
  • the worm 34 and the worm gear 35 are both contained in the receiving cavity of the housing 32, and the worm gear 35 passes through the opening of the back plate 322 and contacts the rack 31.
  • the worm 34 is connected to the handle 33, the rotation axis of the worm 34 coincides with the rotation axis of the handle 33, and the worm 34 and the handle 33 can rotate together about the first rotation axis O1.
  • the worm gear 35 is mounted on the back plate 322 of the housing 32, and the worm gear 35 can rotate around the second rotation axis O2.
  • the worm wheel 35 meshes with the worm 34 and the rack 31 respectively, the worm 34 can drive the worm wheel 35 to rotate around the second rotation axis O2, and the rotation of the worm wheel 35 can drive the rack 31 to move along the The length direction of the rod 20 moves relative to the fixed rod 10.
  • the first rotation axis O1 is perpendicular to the second rotation axis O2, and the first rotation axis O1 is perpendicular to the length direction of the rack 31, and the second rotation axis O2 is perpendicular to the rack 31 The length direction.
  • the pitch angle of the worm 34 is smaller than the equivalent friction angle of the contact between the worm 34 and the worm wheel 35, the worm 34 and the worm wheel 35 can be self-locked, and the rack 31 is
  • the helical rack meshed with the worm gear 35 has the same module as the worm gear 35.
  • the worm 34 and the worm wheel 35 can be self-locking at any position, that is, when the worm 34 does not drive the worm wheel 35 to rotate, the worm 34 and the worm wheel 35 are self-locking so that the moving rod member 20 is opposed to each other.
  • the movable rod 20 When the fixed rod 10 is stationary, the movable rod 20 is finally realized to be self-locking at any position of ascending or descending, and the movable rod 20 is fixed at a desired position.
  • the pitch angle of the worm 34 is set between 3.1 and 3.2 degrees, which can make the transmission of the worm 34 and the worm gear 35 smooth and accurate, and have good self-locking performance.
  • the handle 33 can be replaced with a motor, a motor, etc., as long as it can drive the worm 34 to rotate.
  • the movable rod 20 is provided with a limiting member 21, the limiting member 21 is located in the fixed rod 10, and the inner wall of the fixed rod 10 is provided with a convex The flange is close to the top end of the fixed rod member 10.
  • the limiting member 21 is a collar, which is sleeved on the outer wall of the moving rod member 20.
  • the calibration bracket 100 further includes a base 40 and a support assembly, the fixed rod 10 is mounted on the base 40, and the support assembly is mounted on the movable rod.
  • the support assembly is used to support the calibration element.
  • the support assembly includes a cross beam assembly 50
  • the calibration element is a pattern plate 60
  • the cross beam assembly 50 is installed at one end of the movable rod 20
  • the length direction of the cross beam assembly 50 is the same as that of the movable rod.
  • the length direction of the 20 is vertical, and the beam assembly 50 can follow the moving rod 20 to move relative to the fixed rod 10 along the length of the fixed rod 10.
  • the pattern plate 60 is installed on the beam assembly 50, and the pattern plate 60 can move relative to the beam assembly 50 along the length direction of the beam assembly 50.
  • the support assembly can also be configured in other structures.
  • the calibration element can also be directly fixed to the movable rod by screws, and only the calibration can be The element can be connected to the moving rod.
  • the calibration element may also be a mirror, a laser, or the like.
  • the driving mechanism 30 includes the rack 31, the worm 34 and the worm wheel 35, and the worm wheel 35 and the worm 34 are mounted on the fixed rod.
  • the rack 31 is installed on the moving rod 20
  • the worm gear 35 is respectively engaged with the worm 34 and the rack 31
  • the worm 34 rotates around the first rotation axis O1 to drive the worm wheel 35 rotates around the second axis of rotation O2 to drive the rack 31 to move up and down along the length of the fixed rod 10
  • the moving rod 20 to move up and down along the length of the fixed rod 10.
  • the worm 34 and the worm wheel 35 can be self-locked, so that the movable rod 20 can be moved to any position relative to the fixed rod 10 along the length of the fixed rod 10 to achieve self-locking.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)

Abstract

一种标定支架（100），包括底座（40）、固定杆件（10）、移动杆件（20）、驱动机构（30）和支撑组件；固定杆件（10）安装于底座（40），移动杆件（20）设于固定杆件（10）内，移动杆件（20）沿固定杆件（10）的长度方向相对固定杆件（10）移动，支撑组件安装于移动杆件（20），用于支撑标定元件；驱动机构（30）包括齿条（31）、蜗杆（34）和蜗轮（35），蜗轮（35）与蜗杆（34）均安装于固定杆件（10），齿条（31）安装于移动杆件（20），蜗轮（35）分别啮合于蜗杆（34）与齿条（31）。

Description

一种标定支架
本申请要求于2019年2月1日提交中国专利局、申请号为201910105255.7、申请名称为“一种标定系统及其标定支架”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。
本申请要求于2019年3月21日提交中国专利局、申请号为201910218472.7、申请名称为“一种标定支架”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。
技术领域
本申请涉及车辆维修及设备标定技术领域，特别涉及一种标定支架。
背景技术
先进驾驶辅助系统(Advanced Driver Assistant System)，简称ADAS，是利用安装于车上的各式各样的传感器，在第一时间收集车内外的环境数据，进行静、动态物体的辨识、侦测与追踪等技术上的处理，从而能够让驾驶者在最快的时间察觉可能发生的危险，以引起注意和提高安全性的主动安全技术。ADAS采用的传感器主要有摄像头、雷达、激光和超声波等，可以探测光、热、压力或其它用于监测汽车状态的变量，通常位于车辆的前后保险杠、侧视镜、驾驶杆内部或者挡风玻璃上。在车辆使用过程中，震动、碰撞、环境温湿度等均会使上述传感器的物理安装状态发生改变，故需要不定期进行校准或标定。
对上述传感器进行校准或标定时，通常会在标定支架上挂载标定元件，以对车辆上的传感器进行校准或标定，过程中需要调节标定支架的高度。然而，目前大多数的标定支架，高度调节不便，也不能很好的限位。
发明内容
为了解决上述技术问题，本发明实施例提供一种标定支架，能够在调节高度后实现自锁。
本发明实施例解决其技术问题采用以下技术方案：
一种标定支架，包括：
底座；
固定杆件，所述固定杆件安装于所述底座上；
移动杆件，所述移动杆件连接于所述固定杆件，所述移动杆件可沿所述固定杆件的长度方向相对于所述固定杆件移动；以及
驱动机构，所述驱动机构包括齿条、蜗杆和蜗轮，所述齿条固定安装于所述移动杆件，所述齿条沿所述移动杆件的长度方向设置，所述蜗杆与所述蜗轮均安装于所述固定杆件，所述蜗轮分别啮合于所述蜗杆和所述齿条，所述蜗杆可驱动所述蜗轮转动，所述蜗轮通过转动带动所述齿条沿所述固定杆件的长度 方向移动，以使所述移动杆件沿所述固定杆件的长度方向相对于所述固定杆件移动；
支撑组件，所述支撑组件安装于所述移动杆件上，用于支撑标定元件，所述标定元件用于标定车辆的辅助驾驶系统中的设备。
可选地，所述蜗杆未驱动所述蜗轮转动时，所述蜗杆与所述蜗轮自锁，以使所述移动杆件相对于所述固定杆件静止。
可选地，所述蜗杆的螺升角小于所述蜗杆与所述蜗轮接触的当量摩擦角，以使所述蜗杆与所述蜗轮自锁。
可选地，所述蜗杆的螺升角的角度范围为[3.1°，3.2°]。
可选地，所述蜗杆可绕第一旋转轴线转动，所述蜗轮可绕第二旋转轴线转动；
所述第一旋转轴线垂直于所述齿条，所述第二旋转轴线垂直于所述齿条。
可选地，所述驱动机构还包括驱动件，所述驱动件用于驱动所述蜗杆绕所述第一旋转轴线转动。
可选地，所述驱动件包括手柄，所述手柄与所述蜗杆连接；
所述手柄的旋转轴线与所述蜗杆的旋转轴线重合，所述手柄用于驱动所述蜗杆转动。
可选地，所述移动杆件上设有限位件，所述限位件位于所述固定杆件内；
所述固定杆件的内壁设有凸缘，所述凸缘靠近所述固定杆件的顶端；
当所述移动杆件相对于所述固定杆件移动至所述限位件抵触所述凸缘时，所述移动杆件停止移动。
可选地，所述齿条为与所述蜗轮相互啮合的斜齿齿条，所述齿轮与所述蜗轮的模数相等。
可选地，所述驱动机构还包括外壳，所述外壳安装于所述固定杆件；
所述蜗杆和所述蜗轮均安装于所述外壳内；
所述外壳上设置有开口，所述蜗轮部分通过所述开口与所述齿条啮合。
可选地，所述固定杆件套设于所述移动杆件外。
可选地，所述固定杆件与所述移动杆件中的一者包含有导轨，所述移动杆件受所述导轨的引导沿所述固定杆件的长度方向移动。
与现有技术相比，本发明的实施例中的所述驱动机构包括所述齿条、所述蜗杆和蜗轮，所述蜗轮与所述蜗杆安装于所述固定杆件，所述齿条安装于所述移动杆件，所述蜗轮分别啮合于所述蜗杆与所述齿条，所述蜗杆转动可驱动所述蜗轮转动，所述蜗轮转动可带动所述齿条沿所述固定杆件的长度方向上下移动，最后带动述移动杆件沿所述固定杆件的长度方向上下移动，所述蜗杆与所述蜗轮之间可自锁，因而可以实现所述移动杆件沿所述固定杆件的长度方向相对所述固定杆件移动到任意位置均实现自锁。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1为本发明其中一实施例提供的一种标定支架的结构示意图；
图2为图1所示的标定支架的驱动机构的结构示意图；
图3为图1所示的标定支架的结构示意图，其中部分元件被省略；
图4为根据一些实施例示出的标定支架的结构示意图，其中部分元件被省略；
图5为另一实施例提供的一种标定支架的结构示意图。
具体实施方式
为了便于理解本发明，下面结合附图和具体实施例，对本发明进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”、“内”、“外”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本发明。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本发明不同实施例中所涉及的技术特征只要彼此之间 未构成冲突就可以相互结合。
请参阅图1，本发明其中一实施例提供的标定支架100，包括：固定杆件10、移动杆件20和驱动机构30，所述移动杆件20套设于所述固定杆件10内，所述移动杆件20可沿所述固定杆件10的长度方向相对于所述固定杆件10移动，所述驱动机构30安装于所述固定杆件10，用于驱动所述移动杆件20沿所述固定杆件10的长度方向相对于所述固定杆件10移动。
所述固定杆件10的一端设有底板11，所述底板11安装于地面或者其他支撑面。所述移动杆件20远离所述固定杆件10的一端用于支承标定元件。
所述固定杆件10和所述移动杆件20分别为方通，所述固定杆件10紧密地套设于所述移动杆件20上，可使得所述移动杆件20仅能沿所述固定杆件10的长度方向相对于所述固定杆件10移动，并且可防止所述移动杆件20相对于所述固定杆件10朝其它方向运动。可以理解，也可以视需要将固定杆件作为内杆，移动杆件作为外杆，驱动机构30安装于所述固定杆件10，用于驱动所述移动杆件20沿所述固定杆件10的长度方向相对于所述固定杆件10移动。
在标定过程中，通常需要利用标定支架100各部件之间固定的相对位置关系，例如，有可能在固定杆件10的外表面固定一个激光器，使用该激光器来定位车辆中心轴线，从而确定横梁组件30上所携带标靶与车辆之间的相对位置。因此，如果各部件之间的相对位置有些许变化，都会使标定精度受到影响，或者需要增设额外的微调机构来弥补。如果各部件之间的相对位置变化较大，还有可能导致增设的额外微调机构失效。因此，在套叠方式下，移动杆件20与固定杆件10之间除了沿长度方向之外的相对运动，例如相对转动，是需要排除的。一个简便的方法是移动杆件20与固定杆件10同为方通，这样能确保两者之间只发生沿长度方向的相对运动。
可以理解的是，在一些其它实施例中，所述固定杆件10和所述移动杆件20也可为其它形状的管材，例如，截面为相互配合的多边形的管材，可使得所述移动杆件20仅能沿所述固定杆件10的长度方向相对于所述固定杆件10移动，并且可防止所述移动杆件20相对于所述固定杆件10朝其它方向运动。此处“相互配合”不一定要求固定杆件10与移动杆件20的截面必须相同，例 如设置在外的固定杆件10的截面可以为六边形，设置在内的移动杆件20的截面可以为与该六边形相接的四边形，同样可以实现使得移动杆件20仅能沿固定杆件10的长度方向相对于固定杆件10移动的效果。固定杆件10和所述移动杆件20的截面也可以为相互配合的椭圆形的圆柱形管材，椭圆形的截面同样可以在一定程度上限制两者之间的相对转动。
所述固定杆件10和所述移动杆件20也可以分别为截面为圆形的圆柱形管材，此时可以通过导向机构防止所述固定杆件10相对于所述移动杆件20转动，用于引导所述移动杆件20稳定地相对于所述固定杆件10移动，或者在标定支架100的其他部件处增设检测及调整固定杆件10相对于移动杆件20发生除长度方向运动的机构。一种简便的导向机构是导轨及与之配合的滑块装置，可以在固定杆件10和所述移动杆件20相互接触的表面处，在该两者之一上设置导轨，在另一者上设置例如凸块、塑料胶条、滚轮、滚珠、齿轮等的滑块装置，此时滑块装置将被限制在导轨上运动，也能确保两个杆件之间只发生沿长度方向的相对运动。导轨可以是附加设置在杆件管壁上的凹槽、线状凸起、齿条等，也可以是杆件管壁自身形成的凹槽、线状凸起、两条线状凸起之间形成的凹槽等，即杆件使用异形管壁，管壁本身形状就带有凹槽、线状凸起等可以作为导轨使用的部分。同样，滑块装置可以是附加设置在杆件管壁上的额外部件，也可以是依靠杆件管壁自身形成的凸起结构，而无需在杆件管壁处设置额外部件。此外，齿条等通过啮合来实现传动的机构，本身也有导向作用，本说明书也将其归入导轨范畴内。如下面实施例所描述的齿轮与齿条的传动机构，也能实现导向效果。可选的，齿条可以设置在凹槽导轨内。
可以理解的是，导轨与滑块装置的设置位置可以互换，可以导轨设置在移动杆件上、滑块装置设置在固定杆件上，也可以互换。
可以理解的是，导向机构并不限于截面为圆形的固定杆件10和移动杆件20，其他截面形状的固定杆件10和移动杆件20上也可以使用导向机构来增强导向作用，并且获得更加稳定或摩擦力更小的相对运动。对于非圆形的截面形状，也可以不使用导轨，仅使用直线运动装置来获得更稳定或摩擦力更小的相对运动，此时非圆形的外部杆件本身就起到导向作用。
请一并参阅图2和图3，所述驱动机构30包括齿条31、外壳32、驱动件 以及传动组件，所述驱动件包括手柄33，所述传动组件包括蜗杆34和蜗轮35。
所述齿条31固定安装于所述移动杆件20，并且所述齿条31沿所述移动杆件20的长度方向设置，所述齿条31可驱动所述移动杆件20相对所述固定杆件10移动。
所述外壳32包括壳体320和背板322，所述壳体320与所述背板322共同形成收容腔，所述背板322固定安装于所述固定杆件10，所述背板322上设有开口。
所述手柄33安装于所述壳体320远离所述背板322的一侧，所述手柄33可绕第一旋转轴线O1转动。
所述传动组件可以使所述移动杆件20相对于所述固定杆件10的移动更加精确及省力，有利于精确地确定所述标定支架100的高度。所述蜗杆34和所述蜗轮35均收容于所述外壳32的所述收容腔内，且所述蜗轮35穿过所述背板322的所述开口与所述齿条31接触。所述蜗杆34与所述手柄33连接，所述蜗杆34的旋转轴线与所述手柄33的旋转轴线重合，所述蜗杆34与所述手柄33可一同绕所述第一旋转轴线O1转动。所述蜗轮35安装于所述壳体32的所述背板322，所述蜗轮35可绕第二旋转轴线O2转动。所述蜗轮35分别与蜗杆34和齿条31啮合，所述蜗杆34可驱动所述蜗轮35绕所述第二旋转轴线O2转动，所述蜗轮35转动可带动所述齿条31沿所述移动杆件20的长度方向相对所述固定杆件10移动。
所述第一旋转轴线O1垂直于所述第二旋转轴线O2，并且所述第一旋转轴线O1垂直于所述齿条31的长度方向，所述第二旋转轴线O2垂直于所述齿条31的长度方向。
所述手柄33绕所述第一旋转轴线O1转动时，驱动所述蜗杆34绕第一旋转轴线O1转动，所述蜗轮35绕第二旋转轴线O2转动，带动所述齿条31沿所述移动杆件20的长度方向上升或下降，使得所述移动杆件20相对于所述固定杆件10上升或下降。
在本实施例中，所述蜗杆34的螺升角小于所述蜗杆34与所述蜗轮35接触的当量摩擦角，所述蜗杆34与蜗轮35之间可以实现自锁，所述齿条31为与所述蜗轮35相互啮合的斜齿齿条，所述齿轮31与所述蜗轮35的模数相等。 所述蜗杆34与蜗轮35可以在任意位置实现自锁，即所述蜗杆34未驱动所述蜗轮35转动时，所述蜗杆34与所述蜗轮35自锁，以使所述移动杆件20相对于所述固定杆件10静止，最终实现所述移动杆件20在上升或者下降的任意位置自锁，将所述移动杆件20固定于需要的位置。较优地，所述蜗杆34的螺升角设置为3.1-3.2度之间，可以使所述蜗杆34和所述蜗轮35传动平稳、精确，自锁性能好。
可以理解的是，在一些其它实施例中，所述手柄33可替换为电机、马达等，只需能驱动所述蜗杆34转动即可。
请一并参阅图4，在一些实施例中，所述移动杆件20设置有限位件21，所述限位件21位于所述固定杆件10内，所述固定杆件10的内壁设置凸缘，所述凸缘靠近所述固定杆件10的顶端，当所述移动杆件20相对于所述固定杆件10移动至所述限位件21抵触所述凸缘时，所述移动杆件20停止移动，可防止所述移动杆件20脱离所述固定杆件10。在本实施例中，所述限位件21为套环，其套设于所述移动杆件20的外壁。
请参阅图5，在其他一些实施例中，所述标定支架100还包括底座40和支撑组件，所述固定杆件10安装于所述底座40上，所述支撑组件安装于所述移动杆件上，所述支撑组件用于支撑标定元件。例如，所述支撑组件包括横梁组件50，所述标定元件为图案板60，所述横梁组件50安装于所述移动杆件20的一端，所述横梁组件50的长度方向与所述移动杆件20的长度方向垂直，所述横梁组件50可跟随所述移动杆件20沿所述固定杆件10的长度方向相对所述固定杆件10移动。所述图案板60安装于所述横梁组件50，所述图案板60可沿所述横梁组件50的长度方向相对所述横梁组件50移动。
可以理解的是，在一些其他实施例中，所述支撑组件也可以设置为其他结构，例如，也可以通过螺钉直接将所述标定元件固定于所述移动杆件，只需能将所述标定元件与所述移动杆件连接即可。
可以理解的是，在一些其他实施例中，所述标定元件也可以为反光镜、激光器等。
与现有技术相比，本发明的实施例中，所述驱动机构30包括所述齿条31、所述蜗杆34和蜗轮35，所述蜗轮35与所述蜗杆34安装于所述固定杆件10， 所述齿条31安装于所述移动杆件20，所述蜗轮35分别啮合于所述蜗杆34与所述齿条31，所述蜗杆34绕第一旋转轴线O1转动可驱动所述蜗轮35绕第二旋转轴线O2转动，带动所述齿条31沿所述固定杆件10的长度方向上下移动，最后带动述移动杆件20沿所述固定杆件10的长度方向上下移动，所述蜗杆34与所述蜗轮35之间可以实现自锁，因而可以实现所述移动杆件20沿所述固定杆件10的长度方向相对所述固定杆件10移动到任意位置均实现自锁。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；在本发明的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本发明的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (12)

  1. 一种标定支架，其特征在于，包括：
    底座；
    固定杆件，所述固定杆件安装于所述底座上；
    移动杆件，所述移动杆件连接于所述固定杆件，所述移动杆件可沿所述固定杆件的长度方向相对于所述固定杆件移动；以及
    驱动机构，所述驱动机构包括齿条、蜗杆和蜗轮，所述齿条固定安装于所述移动杆件，所述齿条沿所述移动杆件的长度方向设置，所述蜗杆与所述蜗轮均安装于所述固定杆件，所述蜗轮分别啮合于所述蜗杆和所述齿条，所述蜗杆可驱动所述蜗轮转动，所述蜗轮通过转动带动所述齿条沿所述固定杆件的长度方向移动，以使所述移动杆件沿所述固定杆件的长度方向相对于所述固定杆件移动；
    支撑组件，所述支撑组件安装于所述移动杆件上，用于支撑标定元件，所述标定元件用于标定车辆的辅助驾驶系统中的设备。
  2. 根据权利要求1所述的标定支架，其特征在于，所述蜗杆未驱动所述蜗轮转动时，所述蜗杆与所述蜗轮自锁，以使所述移动杆件相对于所述固定杆件静止。
  3. 根据权利要求2所述的标定支架，其特征在于，所述蜗杆的螺升角小于所述蜗杆与所述蜗轮接触的当量摩擦角，以使所述蜗杆与所述蜗轮自锁。
  4. 根据权利要求3所述的标定支架，其特征在于，所述蜗杆的螺升角的角度范围为[3.1°，3.2°]。
  5. 根据权利要求1所述的标定支架，其特征在于，所述蜗杆可绕第一旋转轴线转动，所述蜗轮可绕第二旋转轴线转动；
    所述第一旋转轴线垂直于所述齿条，所述第二旋转轴线垂直于所述齿条。
  6. 根据权利要求5所述的标定支架，其特征在于，所述驱动机构还包括驱动件，所述驱动件用于驱动所述蜗杆绕所述第一旋转轴线转动。
  7. 根据权利要求6所述的标定支架，其特征在于，所述驱动件包括手柄，所述手柄与所述蜗杆连接；
    所述手柄的旋转轴线与所述蜗杆的旋转轴线重合，所述手柄用于驱动所述蜗杆转动。
  8. 根据权利要求1所述的标定支架，其特征在于，所述移动杆件上设有限位件，所述限位件位于所述固定杆件内；
    所述固定杆件的内壁设有凸缘，所述凸缘靠近所述固定杆件的顶端；
    当所述移动杆件相对于所述固定杆件移动至所述限位件抵触所述凸缘时，所述移动杆件停止移动。
  9. 根据权利要求1所述的标定支架，其特征在于，所述齿条为与所述蜗轮相互啮合的斜齿齿条，所述齿轮与所述蜗轮的模数相等。
  10. 根据权利要求1所述的标定支架，其特征在于，所述驱动机构还包括外壳，所述外壳安装于所述固定杆件；
    所述蜗杆和所述蜗轮均安装于所述外壳内；
    所述外壳上设置有开口，所述蜗轮部分通过所述开口与所述齿条啮合。
  11. 根据权利要求1所述的标定支架，其特征在于，所述固定杆件套设于所述移动杆件外。
  12. 根据权利要求1所述的标定支架，其特征在于，所述固定杆件与所述移动杆件中的一者包含有导轨，所述移动杆件受所述导轨的引导沿所述固定杆件的长度方向移动。
PCT/CN2020/073851 2019-02-01 2020-01-22 一种标定支架 Ceased WO2020156457A1 (zh)

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