WO2023024420A1 - 一种防撞限位装置 - Google Patents

一种防撞限位装置 Download PDF

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Publication number
WO2023024420A1
WO2023024420A1 PCT/CN2022/071825 CN2022071825W WO2023024420A1 WO 2023024420 A1 WO2023024420 A1 WO 2023024420A1 CN 2022071825 W CN2022071825 W CN 2022071825W WO 2023024420 A1 WO2023024420 A1 WO 2023024420A1
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WIPO (PCT)
Prior art keywords
contact
driving
rod
fixed
contact rod
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PCT/CN2022/071825
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English (en)
French (fr)
Inventor
周志远
张继通
孙中进
张程
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法兰泰克重工股份有限公司
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Publication of WO2023024420A1 publication Critical patent/WO2023024420A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/16—Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/50—Applications of limit circuits or of limit-switch arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track

Definitions

  • the invention relates to the technical field of limit devices, in particular to an anti-collision limit device.
  • Cranes are the main large-scale lifting equipment on the market at present, and safety protection measures during their operation are essential.
  • the safety protection measures for crane cranes that are common in the market are mainly divided into two levels: the first level of safety protection It is a control switch.
  • the second level of safety protection is the buffer installed at both ends of the crane rail beam; if the first level of safety protection fails, the crane will collide with the buffer with all its strength, which is very prone to production accidents.
  • those skilled in the art combine the buffer with the control switch in the second level of safety protection to form a closed-loop signal feedback, that is, when the buffer is compressed by an external force, the control switch will be triggered immediately, and the control switch will generate a contact signal and then feed back to the movement and control its brakes to decelerate to stop, reduce the impact force, facilitate the protection of corresponding equipment, and play a protective role.
  • the two structural forms commonly used in the prior art are: the first, buffer and non-contact The photoelectric switch is combined, the circuit control of the photoelectric switch is more complicated, the use cost is high, and the use stability is average, and the safety hazard is relatively large; the second type, the combination of the buffer and the mechanical contact switch, for some emergencies Or when the machine moves faster, the contact switch has been crushed and damaged before the signal generated by the contact switch can be fed back to the moving machine, or the contact signal generated by the contact switch has disappeared before it can be fed back to the moving machine , causing the moving machine to fail to receive the feedback signal so that it hits the buffer with all its strength, which is very easy to damage the buffer and even cause serious production accidents; Hit limit device.
  • the technical problem to be solved by the present invention is to provide an anti-collision limiting device with safe use, stable control and low cost.
  • an anti-collision limiting device comprising:
  • a contact switch the contact switch is installed on the base plate, and the contact switch is provided with a swinging member for triggering and making it generate a contact signal;
  • the buffer includes a contact rod, the contact rod is slidably installed on the bottom plate, the contact rod is connected with an elastic member for buffering the impact force of the contact rod, and the contact rod is also connected with A driving part, the driving part is provided with a driving surface parallel to the sliding direction of the contact rod, and an end of the driving surface close to the swinging part is provided with an inclined surface smoothly connected with the driving surface, and the contact rod is moved After the impact force of the machine, the contact rod drives the driving part to move synchronously, and the driving part presses the swinging part through the inclined surface and the driving surface in turn, so that the contact switch generates a contact signal to brake the machine.
  • both the contact rod and the driving member are fixed on the upper end of the cylindrical guide rod, and the lower end of the guide rod is fixed with a cylindrical guide block coaxial with it, and the guide block is coaxially slidably installed on the In the matching cylindrical guide cylinder, the lower end of the guide cylinder is fixed on the base plate.
  • the upper end of the guide cylinder is fixed with an annular limiting plate coaxial with it, the inner diameter of the limiting plate is larger than the diameter of the guide rod and smaller than the diameter of the guide block , the guide rod passes through the through hole in the middle of the limiting plate vertically upwards.
  • the upper end of the guide rod is fixed with a disc-shaped positioning seat coaxial with it, and the upper end surface of the positioning seat is fixed with a disc-shaped mounting seat coaxial with it, and the contact rod Both the driver and the driver are fixed on the mounting base.
  • the elastic member is a cylindrical spring, and the two ends of the elastic member are respectively sleeved on the outside of the guide cylinder and the outside of the positioning seat, and the two ends of the elastic member are respectively supported on the lower surface and the outer surface of the mounting seat.
  • the upper surface of the base, and the elastic member is in a compressed state.
  • the driving member is in the shape of a cylinder, and the upper end of the driving member is provided with a ring-shaped connecting body protruding inward along its radial direction and integrally formed with it, and the mounting seat is coaxially arranged on the
  • the inside of the driver is fixed with the connecting body, the outer peripheral surface of the driver is the driving surface, and the lower end of the outer peripheral surface is provided with a conical surface that is smoothly connected with it and shrinks inward.
  • the conical surface is As for the inclined surface, the lower end surface of the driving member is higher than the lower end surface of the positioning block.
  • the contact rod is cylindrical, and the lower end of the contact rod is fixed with a disc-shaped connecting plate coaxial with it, and the connecting plate is fixed on the upper surface of the fixing seat, and the The contact rod is coaxial with the guide rod.
  • the contact switch is fixed on a support, and the support is fixed on the bottom plate.
  • the free end of the swing member is rotatably mounted with a roller, and the rotation axis of the roller is perpendicular to the axis of the guide rod, and the roller is tangent to the downward extension of the inclined surface.
  • the bottom plate is provided with a plurality of positioning holes for its installation.
  • the present invention is an anti-collision limit device.
  • the present invention adopts a limit form combining a buffer and a mechanical contact switch. Compared with a photoelectric switch, the circuit control is simple, the use cost is low, and the stability is good;
  • the contact switch of the present invention is arranged on the side of the buffer, and the oscillating member on the contact switch is squeezed through the driving surface on the driving member, so that the contact switch generates a stable feedback signal, and the oscillating member passes through the roller at its front end and the driving member.
  • the contact with the outer surface will not cause the contact switch to be damaged by a large impact force or excessive extrusion due to some unexpected situations.
  • the driving surface of the driving part is always in the state of squeezing the swinging part during the whole process, that is, the contact switch always generates a braking signal to the machine that hits the buffer, and there will be no interruption of the feedback signal, reducing loss of control
  • the situation arises it can effectively deal with some emergencies, reduce the impact force, and effectively protect the corresponding machinery and equipment.
  • Fig. 1 is the front view structure schematic diagram of a kind of anti-collision limiting device of the present invention
  • Fig. 2 is the state diagram after the contact rod of the buffer of the present invention is impacted by an external force F;
  • Fig. 3 is the top view of Fig. 1;
  • Fig. 4 is the individual display figure of each component in the buffer of the present invention.
  • an embodiment of an anti-collision limiting device of the present invention Referring to Figure 1, an embodiment of an anti-collision limiting device of the present invention
  • a kind of anti-collision limit device comprising: contact switch 14, described contact switch 14 is installed on the base plate 11, and described base plate 11 is provided with a plurality of positioning holes 12 for its installation, and described contact switch 14 is provided with There is a pendulum 15 for triggering and making it generate a contact signal; a buffer, the buffer includes a contact rod 30, and the contact rod 30 is slidably installed on the bottom plate 11, and the contact rod 30 is connected with a buffer for buffering
  • the elastic member 24 of the impact force of the contact rod 30, the contact rod 30 is also connected to the driving member 25, the driving member 25 is provided with a driving surface 27 parallel to the sliding direction of the contact rod 30, and the driving member 25 is provided with a driving surface 27 parallel to the sliding direction of the contact rod 30.
  • One end of the surface 27 close to the swinging member 15 is provided with an inclined surface 28 smoothly connected with the driving surface 27, as shown in FIG. 27 contact, reduce setbacks, so that the driving surface 27 can quickly contact with the swinging member 15 and generate a feedback signal, reduce delay, and can effectively protect the driving member 25 and the swinging member 15, reduce wear, and the contact rod 30 is affected by the movement machine After the impact force, the contact rod 30 drives the driving member 25 to move synchronously, and the driving member 25 squeezes the swinging member 15 through the inclined surface 28 and the driving surface 27 in turn, so that the contact switch 14 generates a brake on the Machine contact signal.
  • the contact rod 30 and the driving member 25 are both fixed on the upper end of the cylindrical guide rod 19, and the lower end of the guide rod 19 is fixed with a cylindrical guide block 20 coaxial therewith,
  • the guide block 20 is coaxially slidably installed in the matching cylindrical guide tube 17, the guide block 20 slides freely in the guide tube 17, the sliding direction of the guide block 20 is limited by the guide tube 17, the lower end of the guide tube 17 fixed on the bottom plate 11.
  • the upper end of the guide cylinder 17 is fixed with an annular limiting plate 18 coaxial therewith, the diameter of the inner circle of the limiting plate 18 is larger than the diameter of the guiding rod 19 and Smaller than the diameter of the guide block 20, the guide rod 19 passes through the through hole in the middle of the limit plate 18 vertically upwards, and the guide block 20 in the guide cylinder 17 is limited by the limit plate 18 to prevent the guide block from 20 out of the guide cylinder 17.
  • the upper end of the guide rod 19 is fixed with a disk-shaped positioning seat 22 coaxial therewith, and the positioning seat 22 is used for positioning the elastic member 24.
  • the upper end surface of the positioning seat 22 is fixed with a disc-shaped mounting seat 23 coaxial with it, the contact rod 30 and the driving member 25 are fixed on the mounting seat 23, and the elastic member 24 is a cylindrical spring.
  • the two ends of the member 24 are respectively sleeved on the outside of the guide cylinder 17 and the outside of the positioning seat 22, and the two ends of the elastic member 24 are respectively supported on the lower surface of the mounting seat 23 and the upper surface of the base, and the elastic member 24 is positioned In the compressed state, the guide block 20 is always in contact with the limiting plate 18 through the elastic force of the elastic member 24, so that the structure of the entire buffer is more compact and stable.
  • the driving member 25 is cylindrical, and the upper end of the driving member 25 is provided with an annular connecting body 26 protruding inward along its radial direction and integrally formed with it.
  • the mounting seat 23 is coaxially arranged inside the driving member 25 and fixed with the connecting body 26.
  • the outer peripheral surface of the driving member 25 is the driving surface 27.
  • the lower end of the outer peripheral surface is provided with a conical surface that is smoothly connected with it and shrinks inwardly.
  • the lower end surface of the block so that during the movement of the positioning block, the driver 25 will not contact the bottom plate 11, so as to prevent the driver 25 from being damaged.
  • the contact rod 30 is cylindrical, and the lower end of the contact rod 30 is fixed with a disc-shaped connecting plate 31 coaxial therewith, and the connecting plate 31 is fixed on the fixed The upper surface of the seat, and the contact rod 30 is coaxial with the guide rod 19.
  • the contact switch 14 is fixed on the support 13, and the support 13 is fixed on the bottom plate 11, which facilitates the installation and debugging of the contact switch 14. And the installation stability is good.
  • the free end of the oscillating member 15 is rotatably mounted with a roller 16, and the rotation axis of the roller 16 is perpendicular to the axis of the guide rod 19.
  • the sliding friction force received is changed into rolling friction force, which reduces wear and tear, improves the service life of parts, and makes the swing member 15 more silky and smooth when contacting the driving surface 27 or the inclined surface 28.
  • the roller 16 and the inverted The downward extension surface 29 of the inclined surface 28 is tangent.

Abstract

一种防撞限位装置，包括：接触开关（14），接触开关（14）安装在底板（11）上，接触开关（14）上设有用于触发并使其产生接触信号的摆动件（15）；缓冲器，缓冲器包括接触杆（30），接触杆（30）滑动安装在底板（11）上，接触杆（30）上连接有用于缓冲接触杆（30）所受撞击力的弹性件（24），接触杆（30）上还连接有驱动件（25），驱动件（25）上设有与接触杆（30）滑动方向平行的驱动面（27），驱动面（27）靠近摆动件（15）的一端设有与驱动面（27）平滑连接的倒斜面（28），接触杆（30）受到运动机器的撞击力后，接触杆（30）带动驱动件（25）同步移动，驱动件（25）依次通过倒斜面（28）和驱动面（27）挤压摆动件（15），使得接触开关（14）产生制动机器的接触信号；该装置采用机械式的接触开关（14）和防撞器相结合的防护形式，使用成本低且安全可靠。

Description

一种防撞限位装置 技术领域
本发明涉及限位装置的技术领域，具体涉及一种防撞限位装置。
背景技术
起重机是目前市场上主要的大型起重吊运设备，对其运行中的安全防护措施是必不可少的，目前市场上常见的起重机天车安全防护措施主要分为两级：第一级安全防护是控制开关，第二级安全防护是设置在起重机承轨梁两端的缓冲器；如果第一级安全防护失效，天车就会全力与缓冲器发生碰撞，极易发生生产事故，为了解决上述问题，本领域技术人员在第二级安全防护中将缓冲器与控制开关相结合以形成闭环的信号反馈，即当缓冲器受外力压缩后会立即触发控制开关，控制开关产生接触信号进而反馈给运动的机器并控制其刹车减速至停止运动，减小撞击力，便于保护相应的设备，起到防护作用，但是现有技术中常用的两种结构形式分别为：第一种，缓冲器和非接触的光电开关相结合，其光电开关的电路控制较为复杂，使用成本高,且使用稳定性一般，安全隐患较大；第二种，缓冲器和机械式的接触开关相结合，对于一些突发情况或者机器运动速度较快的情况，接触开关产生的信号还没来得及反馈给运动的机器，接触开关就已经被挤压损坏，或者接触开关产生的接触信号还没来得及反馈给运动的机器就已经消失，导致运动的机器接收不到反馈信号以至于全力撞向缓冲器，极易损坏缓冲器，甚至发生严重的生产事故；因此，本发明基于上述技术问题提出一种控制简单且使用安全稳定的防撞限位装置。
发明内容
本发明要解决的技术问题是提供一种使用安全、控制稳定且成本低廉的防撞限位装置。
为了解决上述技术问题，本发明提供了一种防撞限位装置，包括：
接触开关，所述接触开关安装在底板上，所述接触开关上设有用于触发并使其产生接触信号的摆动件；
缓冲器，所述缓冲器包括接触杆，所述接触杆滑动安装在所述底板上，所述接触杆上连接有用于缓冲接触杆所受撞击力的弹性件，所述接触杆上还连接有驱动件，所述驱动件上设有与所述接触杆滑动方向平行的驱动面，所述驱动面靠近所述摆动件的一端设有与驱动面平滑连接的倒斜面，所述接触杆受到运动机器的撞击力后，所述接触杆带动所述驱动件同步移动，所述驱动件依次通过倒斜面和驱动面挤压所述摆动件，使得接触开关产生制动所述机器的接触信号。
作为本发明的进一步改进，所述接触杆和驱动件均固定在圆柱状导向杆的上端，所述导向杆的下端固定有与其同轴心的圆柱状导向块，该导向块同轴滑动安装在与其匹配的圆筒状导向筒内，所述导向筒的下端固定在所述底板上。
作为本发明的进一步改进，所述导向筒的上端固定有与其同轴心的圆环状限位板，该限位板的内圆直径大于所述导向杆的直径且小于所述导向块的直径，所述导向杆竖直向上贯穿所述限位板中部的通孔。
作为本发明的进一步改进，所述导向杆的上端固定有与其同轴心的圆盘状定位座，所述定位座的上端面固定有与其同轴心的圆盘状安装座，所述接触杆和驱动件均固定在所述安装座上。
作为本发明的进一步改进，所述弹性件为圆柱弹簧，该弹性件的两端分别 套装在导向筒的外部和定位座的外部，所述弹性件的两端分别支撑在安装座的下表面和底座的上表面，且该弹性件处于被压缩状态。
作为本发明的进一步改进，所述驱动件为圆柱筒状，该驱动件的上端设有沿其径向向内凸出且与其一体成形的圆环状连接体，所述安装座同轴设置在驱动件的内部且与所述连接体固定，所述驱动件的外圆周面为所述驱动面，所述外圆周面的下端设有与其平滑连接且向内收缩的圆锥面，该圆锥面为所述倒斜面，所述驱动件的下端面高于所述定位块的下端面。
作为本发明的进一步改进，所述接触杆为圆柱状，所述接触杆的下端固定有与其同轴心的圆盘状连接板，所述连接板固定在所述固定座的上表面，且所述接触杆与所述导向杆同轴心。
作为本发明的进一步改进，所述接触开关固定在支座上，所述支座固定在所述底板上。
作为本发明的进一步改进，所述摆动件的自由端转动安装有滚轮，且所述滚轮的转动轴线与所述导向杆的轴线垂直,所述滚轮与所述倒斜面向下的延长面相切。
作为本发明的进一步改进，所述底板上设有多个用于其安装的定位孔。
本发明的有益效果：
本发明是一种防撞限位装置，首先，本发明采用缓冲器和机械式接触开关相结合的限位形式，相对光电开关，其电路控制简单，使用成本低，且稳定性好；其次，本发明的接触开关设置在缓冲器的侧面，通过驱动件上的驱动面去挤压接触开关上的摆动件，进而使得接触开关产生稳定的反馈信号，摆动件通过其前端的滚轮和驱动件的外侧面接触，不会因为一些突发情况使得接触开关被较大的冲击力撞坏或者被过渡挤压而损坏，使用安全稳定，且能够减少一些不必要的损失；再者，从缓冲器受压运动直至被不能被压缩，整个过程驱动件 的驱动面始终处于挤压摆动件的状态，即接触开关始终对撞击缓冲器的机器产生制动信号，不会出现反馈信号中断的情况，减少失控情况的出现，能够有效应对一些突发情况，减小撞击力，有效保护对应的机器设备。
附图说明
图1为本发明一种防撞限位装置的主视结构示意图；
图2为本发明缓冲器的接触杆受到外力F撞击后的状态图；
图3为图1的俯视图；
图4为本发明缓冲器中各零部件的单独展示图；
图中标号说明：
11、底板；12、定位孔；13、支座；14、接触开关；15、摆动件；16、滚轮；17、导向筒；18、限位板；19、导向杆；20、导向块；22、定位座；23、安装座；24、弹性件；25、驱动件；26、连接体；27、驱动面；28、倒斜面；29、倒斜面向下的延长面；30、接触杆；31、连接板。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明，以使本领域的技术人员可以更好地理解本发明并能予以实施，但所举实施例不作为对本发明的限定。
参照图1所示，本发明一种防撞限位装置的一实施例；
一种防撞限位装置，包括：接触开关14，所述接触开关14安装在底板11上，所述底板11上设有多个用于其安装的定位孔12，所述接触开关14上设有用于触发并使其产生接触信号的摆动件15；缓冲器，所述缓冲器包括接触杆30，所述接触杆30滑动安装在所述底板11上，所述接触杆30上连接有用于缓冲接触杆30所受撞击力的弹性件24，所述接触杆30上还连接有驱动件25，所述驱动件25上设有与所述接触杆30滑动方向平行的驱动面27，所述驱动面27靠 近所述摆动件15的一端设有与驱动面27平滑连接的倒斜面28，参照图2所示，通过倒斜面28使得接触开关14的摆动件15能够平滑过渡至与所述驱动面27接触，减小顿挫，使得驱动面27能够快速与摆动件15接触并产生反馈信号，减小延迟，且能够有效保护驱动件25和摆动件15，减少磨损，所述接触杆30受到运动机器的撞击力后，所述接触杆30带动所述驱动件25同步移动，所述驱动件25依次通过倒斜面28和驱动面27挤压所述摆动件15，使得接触开关14产生制动所述机器的接触信号。
在本发明的一具体实施例中，所述接触杆30和驱动件25均固定在圆柱状导向杆19的上端，所述导向杆19的下端固定有与其同轴心的圆柱状导向块20，该导向块20同轴滑动安装在与其匹配的圆筒状导向筒17内，导向块20在导向筒17内自由滑动，通过导向筒17限定导向块20的滑动方向，所述导向筒17的下端固定在所述底板11上。
在本发明的一具体实施例中，所述导向筒17的上端固定有与其同轴心的圆环状限位板18，该限位板18的内圆直径大于所述导向杆19的直径且小于所述导向块20的直径，所述导向杆19竖直向上贯穿所述限位板18中部的通孔，通过限位板18对导向筒17内的导向块20进行限位，防止导向块20脱离导向筒17。
在本发明的一具体实施例中，参照图4所示，所述导向杆19的上端固定有与其同轴心的圆盘状定位座22，该定位座22用于定位弹性件24，所述定位座22的上端面固定有与其同轴心的圆盘状安装座23，所述接触杆30和驱动件25均固定在所述安装座23上，所述弹性件24为圆柱弹簧，该弹性件24的两端分别套装在导向筒17的外部和定位座22的外部，所述弹性件24的两端分别支撑在安装座23的下表面和底座的上表面，且该弹性件24处于被压缩状态，通过弹性件24的弹力使得导向块20始终与限位板18接触，使得整个缓冲器的结构更加紧凑、稳定。
在本发明的一具体实施例中，所述驱动件25为圆柱筒状，该驱动件25的 上端设有沿其径向向内凸出且与其一体成形的圆环状连接体26，所述安装座23同轴设置在驱动件25的内部且与所述连接体26固定，所述驱动件25的外圆周面为所述驱动面27，缓冲器工作时，该驱动面27始终处于挤压摆动件15的状态，即接触开关14始终对撞击缓冲器的机器产生制动信号，不会出现反馈信号中断的情况，减少失控情况的出现，能够有效应对一些突发情况，减小撞击力，有效保护对应的机器设备；所述外圆周面的下端设有与其平滑连接且向内收缩的圆锥面，该圆锥面为所述倒斜面28，所述驱动件25的下端面高于所述定位块的下端面，使得定位块在运动过程中，驱动件25不会与底板11接触，防止损坏驱动件25。
在本发明的一具体实施例中，所述接触杆30为圆柱状，所述接触杆30的下端固定有与其同轴心的圆盘状连接板31，所述连接板31固定在所述固定座的上表面，且所述接触杆30与所述导向杆19同轴心。
在本发明的一具体实施例中，参照图3所示，所述接触开关14固定在支座13上，所述支座13固定在所述底板11上，方便接触开关14的安装和调试，且安装稳定性好。
在本发明的一具体实施例中，所述摆动件15的自由端转动安装有滚轮16，且所述滚轮16的转动轴线与所述导向杆19的轴线垂直，通过滚轮16使得摆动件15所受的滑动摩擦力变为滚动摩擦力，减小磨损，提高零部件的使用寿命，且使得摆动件15与驱动面27或者倒斜面28接触时更加丝滑平顺,所述滚轮16与所述倒斜面28向下的延长面29相切。
以上所述实施例仅是为充分说明本发明而所举的较佳的实施例，本发明的保护范围不限于此。本技术领域的技术人员在本发明基础上所作的等同替代或变换，均在本发明的保护范围之内。本发明的保护范围以权利要求书为准。

Claims (10)

  1. 一种防撞限位装置，其特征在于，包括：
    接触开关，所述接触开关安装在底板上，所述接触开关上设有用于触发并使其产生接触信号的摆动件；
    缓冲器，所述缓冲器包括接触杆，所述接触杆滑动安装在所述底板上，所述接触杆上连接有用于缓冲接触杆所受撞击力的弹性件，所述接触杆上还连接有驱动件，所述驱动件上设有与所述接触杆滑动方向平行的驱动面，所述驱动面靠近所述摆动件的一端设有与驱动面平滑连接的倒斜面，所述接触杆受到运动机器的撞击力后，所述接触杆带动所述驱动件同步移动，所述驱动件依次通过倒斜面和驱动面挤压所述摆动件，使得接触开关产生制动所述机器的接触信号。
  2. 如权利要求1所述的一种防撞限位装置，其特征在于，所述接触杆和驱动件均固定在圆柱状导向杆的上端，所述导向杆的下端固定有与其同轴心的圆柱状导向块，该导向块同轴滑动安装在与其匹配的圆筒状导向筒内，所述导向筒的下端固定在所述底板上。
  3. 如权利要求2所述的一种防撞限位装置，其特征在于，所述导向筒的上端固定有与其同轴心的圆环状限位板，该限位板的内圆直径大于所述导向杆的直径且小于所述导向块的直径，所述导向杆竖直向上贯穿所述限位板中部的通孔。
  4. 如权利要求2所述的一种防撞限位装置，其特征在于，所述导向杆的上端固定有与其同轴心的圆盘状定位座，所述定位座的上端面固定有与其同轴心的圆盘状安装座，所述接触杆和驱动件均固定在所述安装座上。
  5. 如权利要求4所述的一种防撞限位装置，其特征在于，所述弹性件为圆 柱弹簧，该弹性件的两端分别套装在导向筒的外部和定位座的外部，所述弹性件的两端分别支撑在安装座的下表面和底座的上表面，且该弹性件处于被压缩状态。
  6. 如权利要求5所述的一种防撞限位装置，其特征在于，所述驱动件为圆柱筒状，该驱动件的上端设有沿其径向向内凸出且与其一体成形的圆环状连接体，所述安装座同轴设置在驱动件的内部且与所述连接体固定，所述驱动件的外圆周面为所述驱动面，所述外圆周面的下端设有与其平滑连接且向内收缩的圆锥面，该圆锥面为所述倒斜面，所述驱动件的下端面高于所述定位块的下端面。
  7. 如权利要求6所述的一种防撞限位装置，其特征在于，所述接触杆为圆柱状，所述接触杆的下端固定有与其同轴心的圆盘状连接板，所述连接板固定在所述固定座的上表面，且所述接触杆与所述导向杆同轴心。
  8. 如权利要求6所述的一种防撞限位装置，其特征在于，所述接触开关固定在支座上，所述支座固定在所述底板上。
  9. 如权利要求8所述的一种防撞限位装置，其特征在于，所述摆动件的自由端转动安装有滚轮，且所述滚轮的转动轴线与所述导向杆的轴线垂直,所述滚轮与所述倒斜面向下的延长面相切。
  10. 如权利要求1所述的一种防撞限位装置，其特征在于，所述底板上设有多个用于其安装的定位孔。
PCT/CN2022/071825 2021-08-27 2022-01-13 一种防撞限位装置 WO2023024420A1 (zh)

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