WO2024093206A1 - 一种手动制动机构 - Google Patents

一种手动制动机构 Download PDF

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Publication number
WO2024093206A1
WO2024093206A1 PCT/CN2023/095849 CN2023095849W WO2024093206A1 WO 2024093206 A1 WO2024093206 A1 WO 2024093206A1 CN 2023095849 W CN2023095849 W CN 2023095849W WO 2024093206 A1 WO2024093206 A1 WO 2024093206A1
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WO
WIPO (PCT)
Prior art keywords
pawl
ratchet
manual
wheel
manual wheel
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Application number
PCT/CN2023/095849
Other languages
English (en)
French (fr)
Inventor
刘幻云
陈祖顺
张金发
毕经全
徐勇
涂智文
陈学良
曾德凉
王丽娜
杨刚
刘鹏
蔡青
Original Assignee
中车长江运输设备集团有限公司科技开发分公司
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Application filed by 中车长江运输设备集团有限公司科技开发分公司 filed Critical 中车长江运输设备集团有限公司科技开发分公司
Publication of WO2024093206A1 publication Critical patent/WO2024093206A1/zh

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention belongs to the technical field of railway freight car braking, and in particular relates to a manual braking mechanism.
  • railway freight cars are used as a means of transportation and are widely used in the transportation of goods.
  • the railway freight cars are provided with a braking mechanism, and the braking state of the railway freight cars is maintained by the braking mechanism.
  • Conventional railway freight car manual brakes generally include a handwheel, a driving shaft, a chain, and a brake.
  • the driving shaft is arranged inside the brake, and the handwheel is connected to the driving shaft.
  • One end of the chain indirectly pulls the rotating shaft, and the other end is connected to the brake.
  • manpower is used as the braking motive force to operate the handwheel of the manual brake.
  • the manual brake By rotating the driving shaft to roll the chain into the brake, the manual brake will pull the car body brake system through the chain to generate braking force. This braking force is finally transmitted to the brake shoe, which makes the brake shoe stick to the wheel to generate braking effect.
  • the manual wheel rotates under human action and outputs a torque, which increases with the rotation of the manual wheel.
  • the existing dynamic brake cannot determine whether the torque output by the manual wheel is at a preset torque.
  • a manual brake mechanism to solve the technical problem that the existing dynamic brake cannot determine whether the torque output by the manual wheel is within the preset torque.
  • a manual brake mechanism including: a housing; a manual wheel rotatably mounted on the housing; a pawl assembly mounted on the back of the manual wheel and rotating with the rotation of the manual wheel; the pawl assembly is provided with a retractable pawl; and a brake assembly mounted on the housing.
  • the brake assembly includes a rotating shaft, a chain, a brake member and a ratchet; the rotating shaft is rotatably connected to the housing, one end of the chain indirectly pulls the rotating shaft, and the other end is connected to the brake member, and the brake member brakes the object to be braked as the chain is pulled; the ratchet is sleeved on the rotating shaft, and the pawl is connected to the ratchet or idles.
  • FIG1 is a schematic diagram of a manual brake mechanism according to some embodiments of the present disclosure.
  • FIG2 is a schematic diagram of a pawl assembly of a manual brake mechanism according to some embodiments of the present disclosure.
  • FIG. 3 is a schematic diagram showing the connection between a brake assembly and a pawl assembly of a manual brake mechanism according to some embodiments of the present disclosure.
  • the disclosed embodiment provides a manual brake mechanism to solve the technical problem that the existing dynamic brake cannot determine whether the torque output by the manual wheel is within the preset torque.
  • FIG1 is a schematic diagram of a manual brake mechanism according to some embodiments of the present disclosure
  • FIG2 is a schematic diagram of a pawl assembly of a manual brake mechanism according to some embodiments of the present disclosure
  • FIG3 is a schematic diagram of the connection between a brake assembly and a pawl assembly of a manual brake mechanism according to some embodiments of the present disclosure.
  • an embodiment of the present disclosure provides a manual brake mechanism, which is applied to a railway freight car, and the manual brake mechanism includes a housing 10, a manual wheel 20, a pawl assembly 30, and a brake assembly 40.
  • the housing 10 serves as a support member of the manual brake mechanism, supporting the manual wheel 20, the pawl assembly 30, and the brake assembly 40.
  • the manual wheel 20 is located outside the housing 10 and is rotatably mounted on the housing 10. In some embodiments, the manual wheel 20 located outside the housing 10 is rotated by the user, and the manual wheel 20 rotates under the external force of the user and rotates clockwise. In some embodiments, as the manual wheel 20 rotates clockwise, the torque output by the manual wheel 20 gradually increases.
  • the pawl assembly 30 is installed on the back of the manual wheel 20 and rotates with the rotation of the manual wheel 20 ; the pawl assembly 30 includes a support 31 , a pawl 32 , an elastic member 33 and an adjusting member 34 .
  • the support 31 serves as a supporting member of the pawl assembly 30 and supports the pawl 32, the elastic member 33 and the adjusting member 34.
  • the support 31 is fixed to the back of the manual wheel 20 and rotates with the rotation of the manual wheel 20.
  • the pawl 32 is telescopically mounted on the support 31 and is telescopic relative to the support 31 .
  • the pawl 32 is inserted into the ratchet 43 of the brake assembly 40 and is connected to the ratchet 43 .
  • the elastic member 33 is accommodated in the support 31 and elastically abuts against the pawl 32. In some embodiments, one end of the elastic member 33 elastically abuts against the pawl 32 and applies an elastic force to the pawl 32. In some embodiments, the elastic member 33 is a spring, and the elastic member 33 is sleeved on the pawl 32.
  • the pawl 32 is elastically expanded and contracted relative to the support 31 under the elastic force of the elastic member 33, and is inserted into the inclined groove 431 of the ratchet 43 under the elastic force of the elastic member 33.
  • the elastic force of the elastic member 33 maintains the connection between the pawl 32 and the ratchet 43, ensuring that the ratchet 43 rotates with the rotation of the manual wheel 20 and the ratchet 43 when the torque output by the manual wheel 20 is less than the preset torque, so as to facilitate the adjustment of the rotating shaft 41, the sprocket and the stopper, and the brake member brakes the object to be braked as the chain 42 is pulled.
  • the adjusting member 34 can be arranged above the elastic member 33 and serve as a knob of the support 31; the adjusting member 34 is screwed to the support 31 and adjusts the depth between the adjusting member 34 and the support 31 during the rotation process. As the depth of the adjusting member 34 relative to the support 31 is adjusted, the adjusting member 34 gradually squeezes the elastic member 33 to adjust the elastic force of the elastic member 33 on the pawl 32. Thus, the connection strength between the pawl 32 and the ratchet 43 is adjusted, and then the driving force of the pawl 32 on the ratchet 43 is adjusted.
  • the adjusting member 34 is an adjusting knob.
  • the brake assembly 40 is mounted on the housing 10 and disposed on one side of the pawl 32.
  • the brake assembly 40 includes a rotating shaft 41, a chain 42, a ratchet 43 and a brake member.
  • the rotating shaft 41 is rotatably connected to the housing 10.
  • One end of the chain 42 indirectly pulls the rotating shaft 41, and the other end is connected to the brake member.
  • the brake member brakes the object to be braked as the chain 42 pulls.
  • the ratchet 43 is sleeved on the rotating shaft 41, and the pawl 32 is connected to the ratchet 43 or idles.
  • the pawl assembly 30 is mounted on the back of the manual wheel 20 and rotates with the rotation of the manual wheel 20.
  • the pawl assembly 30 may be provided with a retractable pawl 32, which is retractable in the up and down direction.
  • the rotating shaft 41 is rotatably connected to the housing 10, one end of the chain 42 indirectly pulls the rotating shaft 41, and the other end is connected to the brake.
  • the brake brakes the object to be braked as the chain 42 pulls.
  • the ratchet 43 is sleeved on the rotating shaft 41, and the pawl 32 is connected to the ratchet 43 or idles.
  • the pawl 32 when the torque output by the manual wheel 20 is less than the preset torque, the pawl 32 is plugged into the ratchet 43 and connected to the ratchet 43.
  • the ratchet 43 rotates with the rotation of the manual wheel 20 and the pawl 32, and drives the brake to gradually brake the object to be braked through the chain 42.
  • the torque output by the manual wheel 20 gradually increases with the rotation of the manual wheel 20 and the pawl 32.
  • the pawl 32 idles relative to the ratchet wheel 43 to ensure The torque output by the manual wheel 20 is held.
  • the torque output by the manual wheel 20 can be inferred to be at the preset torque through the idling of the pawl 32 relative to the ratchet 43 and the idling of the manual wheel, and the operator can intuitively feel the phenomenon of the idling of the pawl 32 relative to the ratchet 43 and the idling of the manual wheel 20.
  • the pawl 32 makes a sound with the ratchet 43 when idling relative to the ratchet 43, and the sound can reflect that the torque output by the manual wheel 20 is at the preset torque.
  • the pawl 32 when the torque output by the manual wheel 20 is equal to or greater than the preset torque, the pawl 32 idles relative to the ratchet 43.
  • the idle state of the pawl 32 facilitates intuitively showing the phenomenon that the torque output by the manual wheel 20 is equal to or greater than the preset torque.
  • the pawl 32 makes a sound with the ratchet 43 when idling relative to the ratchet 43, and the sound can reflect that the torque output by the manual wheel 20 is at the preset torque. And when the torque output by the manual wheel 20 is equal to or greater than the preset torque, the pawl 32 idles relative to the ratchet 43, maintaining the torque output by the manual wheel 20.
  • the torque output by the manual wheel 20 is at the preset torque through the idle rotation of the pawl 32 relative to the ratchet 43 and the idle rotation of the manual wheel, and the operator intuitively feels the phenomenon that the pawl 32 idles relative to the ratchet 43 and the idle rotation of the manual wheel 20.
  • the pawl 32 makes a sound with the ratchet 43 when idling relative to the ratchet 43 , and the sound can indicate that the torque output by the manual wheel 20 is at a preset torque.
  • the circumferential side wall of the ratchet 43 may be provided with a plurality of oblique grooves 431, which are sequentially arranged along the circumference of the pawl 32, and the end of each oblique groove 431 is provided with an angled portion 432.
  • the oblique groove 431 is used for the pawl 32 to be inserted, and the inner side wall of the oblique groove 431 contacts the end of the pawl 32.
  • the pawl 32 when the torque output by the manual wheel 20 is less than the preset torque, the pawl 32 is continuously inserted into the inclined slot 431 under the elastic force of the elastic member 33, and the ratchet 43 rotates with the rotation of the manual wheel 20 and the pawl 32. In some embodiments, the pawl 32 is inserted into the inclined slot 431 when in the extended state, and drives the ratchet 43 to rotate.
  • the pawl 32 when the torque output by the manual wheel 20 is equal to or greater than the preset torque, the pawl 32 slides along the inner wall of each inclined groove 431 as the manual wheel 20 rotates, the ratchet 43 remains stationary, and the pawl 32 is in an idling state relative to the ratchet 43.
  • the pawl 32 is extended and retracted on the support 31 driven by the inner wall of the inclined groove 431, and the pawl 32 is reset by the elastic member 33, thereby maintaining the pawl 32 in contact with the ratchet 43 in the idling state.
  • the pawl 32 is retracted relative to the support 31 along the inner wall of the inclined groove 431, and contacts the inner wall of the inclined groove 431 under the elastic force of the elastic member 33.
  • the ratchet 43 may be provided with a square hole 433
  • the rotating shaft 41 may be provided with a square end 411
  • the square end 411 is inserted into the square hole 433
  • the rotating shaft 41 and the ratchet 43 are engaged with each other.
  • the ratchet 43 and the pawl 32 can be disposed on the back of the manual wheel 20 and connected to the manual wheel 20 as a whole.
  • the ratchet 43 and the pawl 32 can be in an idling state, and the pawl 32 can rotate freely along the central axis of the manual wheel 20.
  • the ratchet 43 and the pawl 32 can be arranged on the shaft 41.
  • the shaft 41 can be divided into two parts, the ratchet 43 is installed in the part of the shaft 41 connected with the stopper, and the pawl 32 is installed in the part of the shaft 41 connected with the manual wheel 20.
  • a manual brake mechanism wherein the pawl assembly 30 is mounted on the back of the manual wheel 20 and rotates with the rotation of the manual wheel 20; the pawl assembly 30 is provided with a retractable pawl 32, which is retracted in the up-down direction; the rotating shaft 41 is rotatably connected to the housing 10, one end of the chain 42 pulls the rotating shaft 41, and the other end is connected to the brake member, and the brake member brakes the object to be braked as the chain 42 pulls; the ratchet 43 is sleeved on the rotating shaft 41, and the pawl 32 is connected to the ratchet 43 or idles.
  • the pawl 32 when the torque output by the manual wheel 20 is less than the preset torque, the pawl 32 is inserted into the ratchet 43 and connected to the ratchet 43, and the ratchet 43 rotates as the manual wheel 20 and the pawl 32 rotate, and the brake member is driven by the chain 42 to gradually brake the object to be braked. In some embodiments, the torque output by the manual wheel 20 gradually increases with the rotation of the manual wheel 20 and the pawl 32. When the torque output by the manual wheel 20 is equal to or greater than the preset torque, the pawl 32 idles relative to the ratchet 43, maintaining the torque output by the manual wheel 20.
  • the idling of the pawl 32 relative to the ratchet 43 and the idling of the manual wheel can be inferred that the torque output by the manual wheel 20 is at the preset torque, and the operator's intuitive
  • the pawl 32 can feel the idling of the ratchet wheel 43 and the idling of the manual wheel 20.
  • the pawl 32 can make a sound with the ratchet wheel 43 when idling relative to the ratchet wheel 43, and the sound can reflect that the torque output by the manual wheel 20 is at the preset torque.
  • the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more features.

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

Abstract

一种手动制动机构，包括壳体（10）、手动轮（20）、棘爪组件（30）、制动组件（40）。棘爪组件（30）安装于手动轮（20）的背部，并随着手动轮（20）的转动而转动。棘爪组件（30）设有可伸缩的棘爪（32），棘爪（32）沿上下方向伸缩。转轴可转动地连接于壳体（10），链条（42）的一端间接牵引转轴（41），另一端连接制动件。制动件随着链条（42）的拉动而制动于待制动物体。棘轮（43）套设于转轴（41），并与棘爪（32）连接或空转。在手动轮（20）输出的力矩小于预设力矩时，棘爪（32）插接于棘轮（43），并与棘轮（43）相连接。棘轮（43）随着手动轮（20）和棘爪（32）的转动而转动，并经链条（42）带动制动件逐步制动于待制动物体。手动轮（20）输出的力矩随着手动轮（20）和棘爪（32）的转动而逐步增大。在手动轮（20）输出的力矩等于或大于预设力矩时，棘爪（32）相对于棘轮（43）空转。如此设置解决了现有的制动时无法确定手动轮输出的力矩是否处于预设力矩的技术问题。

Description

一种手动制动机构
相关申请的交叉引用
本申请要求于2022年11月03日提交的申请号为202211373955.2的中国专利申请的优先权，其全部内容通过引用并入本文。
技术领域
本公开属于铁路货车制动的技术领域，尤其涉及一种手动制动机构。
背景技术
随着科技的发展，铁路货车作为运载工具，并广泛应用于货物的运输，其中，铁路货车设有制动机构，并且通过制动机构保持铁路货车的制动状态。
常规的铁路货车手动制动机一般包括手轮、主动轴、链条以及制动件。主动轴设置在制动件内，手轮与主动轴组成相连，链条的一端间接牵引所述转轴，另一端则连接制动件。当铁路货车采用手动制动机进行制动时，以人力为制动原动力，操作手动制动机手轮。通过转动主动轴将链条卷进制动件，手动制动机将通过链条拉动车体制动***产生制动力。这一制动力最终传递至闸瓦，使闸瓦贴靠车轮，产生制动作用。
手动轮在人为作用下旋转，并输出力矩，力矩随着手动轮的旋转而增大。可是，现有的动制动机无法确定手动轮输出的力矩是否处于预设力矩。
发明内容
本公开实施方式提供一种手动制动机构，以解决现有的动制动机无法确定手动轮输出的力矩是否处于预设力矩的技术问题。依据本公开提供了一种手动制动机构，包括：壳体；手动轮，可转动地安装于所述壳体；棘爪组件，安装于所述手动轮的背部，并随着所述手动轮的转动而转动；所述棘爪组件设有可伸缩的棘爪；以及制动组件，安装于所述壳体。所述制动组件包括转轴、链条、制动件和棘轮；所述转轴可转动地连接于所述壳体，所述链条的一端间接牵引所述转轴，另一端连接所述制动件，所述制动件随着所述链条的拉动而制动于待制动物体；所述棘轮套设于所述转轴，所述棘爪与所述棘轮连接或空转。
附图说明
为了更清楚地说明本公开实施方式中的技术方案，下面将对实施方式描述中所需要使用的附图作简单的介绍。显而易见地，下面描述中的附图仅仅是本公开的一些实施方式，对本领域技术人员来说，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。
为了更完整地理解本公开及其有益效果，下面将结合附图来进行说明。其中，在下面的描述中相同的附图标号表示相同部分。
图1为依据本公开的一些实施方式的手动制动机构的示意图；
图2为依据本公开的一些实施方式的手动制动机构的棘爪组件的示意图；以及
图3为依据本公开的一些实施方式的手动制动机构的制动组件与棘爪组件的连接示意图。
具体实施方式
下面将结合本公开实施方式中的附图，对本公开实施方式中的技术方案进行清楚、完整地描述。显然，所描述的实施方式仅仅是本公开一部分实施方式，而不是全部的实施方式。 基于本公开中的实施方式，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本公开保护的范围。
本公开实施方式提供一种手动制动机构，以解决现有的动制动机无法确定手动轮输出的力矩是否处于预设力矩的技术问题。
实施方式1：
图1为依据本公开的一些实施方式的手动制动机构的示意图；图2为依据本公开的一些实施方式的手动制动机构的棘爪组件的示意图；以及图3为依据本公开的一些实施方式的手动制动机构的制动组件与棘爪组件的连接示意图。如图1至图3所示，本公开实施方式提供一种手动制动机构，手动制动机构应用于铁路货车，手动制动机构包括壳体10、手动轮20、棘爪组件30、制动组件40。壳体10作为手动制动机构的支撑件，支撑手动轮20、棘爪组件30、制动组件40。
手动轮20处于壳体10的外侧，并可转动地安装于壳体10。在一些实施方式中，处于壳体10的外侧的手动轮20供使用者旋转，手动轮20在使用者的外力作用下旋转，并沿顺时针进行旋转。在一些实施方式中，随着手动轮20沿顺时针进行旋转，手动轮20输出的力矩逐步增大。
棘爪组件30安装于手动轮20的背部，并随着手动轮20的转动而转动；棘爪组件30包括支座31、棘爪32、弹性件33和调节件34。
支座31作为棘爪组件30的支撑部件，并支撑棘爪32、弹性件33和调节件34。支座31固定于手动轮20的背部，并随着手动轮20的旋转而旋转。
棘爪32可伸缩地安装于支座31，并相对于支座31伸缩，在棘爪32处于伸缩状态时，棘爪32插接于制动组件40的棘轮43，并与棘轮43相连接。
弹性件33容纳于支座31内，并弹性抵接棘爪32。在一些实施方式中，弹性件33的一端弹性抵接棘爪32，并向棘爪32施加弹性作用力。在一些实施方式中，弹性件33为弹簧，弹性件33套设于棘爪32。
棘爪32在弹性件33的弹性作用力下相对于支座31弹性伸缩，并且在弹性件33的弹性作用力下插接于棘轮43的斜槽431。弹性件33的弹性作用力维持棘爪32和棘轮43之间的连接，保证了棘轮43在手动轮20输出的力矩小于预设力矩时随着手动轮20和棘轮43的转动而转动，以便于调整转轴41、链轮和制止件，制动件随着链条42的拉动而制动于待制动物体。
调节件34可以设置于弹性件33的上方，并作为支座31的旋钮；调节件34螺接于支座31，并在旋转过程中调节调节件34与支座31之间的深度，随着调节件34相对于支座31的深度调整，调节件34逐步挤压弹性件33，以调整弹性件33对棘爪32的弹性作用力。从而调整棘爪32与棘轮43之间的连接强度，进而调整棘爪32对棘轮43的驱动力。在一些实施方式中，调节件34为调节旋钮。
制动组件40安装于壳体10，并设置于棘爪32的一侧。制动组件40包括转轴41、链条42、棘轮43和制动件。转轴41可转动地连接于壳体10。链条42的一端间接牵引转轴41，另一端连接制动件。制动件随着链条42的拉动而制动于待制动物体。棘轮43套设于转轴41，棘爪32与棘轮43连接或空转。
在一些实施方式中，棘爪组件30安装于手动轮20的背部，并随着手动轮20的转动而转动。棘爪组件30可以设有可伸缩的棘爪32，棘爪32沿上下方向伸缩。转轴41可转动地连接于壳体10，链条42的一端间接牵引转轴41，另一端连接制动件。制动件随着链条42的拉动而制动于待制动物体。棘轮43套设于转轴41，棘爪32与棘轮43连接或空转。在一些实施方式中，在手动轮20输出的力矩小于预设力矩时，棘爪32插接于棘轮43，并与棘轮43相连接。棘轮43随着手动轮20和棘爪32的转动而转动，并经链条42带动制动件逐步制动于待制动物体。在一些实施方式中，手动轮20输出的力矩随着手动轮20和棘爪32的转动而逐步增大。在手动轮20输出的力矩等于或大于预设力矩时，棘爪32相对于棘轮43空转，保 持着手动轮20输出的力矩。通过棘爪32相对于棘轮43空转和手动轮的空转可以推测出手动轮20输出的力矩处于预设力矩，并且操作者的直观感受到棘爪32相对于棘轮43空转和手动轮20的空转的现象。在一些实施方式中，棘爪32在相对于棘轮43空转时会与棘轮43发出声响，可以通过声音体现出手动轮20输出的力矩处于预设力矩。
在一些实施方式中，在手动轮20输出的力矩等于或大于预设力矩时，棘爪32相对于棘轮43空转。通过棘爪32的空转状态便于直观地显示出手动轮20输出的力矩等于或大于预设力矩的现象。在一些实施方式中，棘爪32在相对于棘轮43空转时会与棘轮43发出声响，可以通过声音体现出手动轮20输出的力矩处于预设力矩。并且在手动轮20输出的力矩等于或大于预设力矩时，棘爪32相对于棘轮43空转，保持着手动轮20输出的力矩。通过棘爪32相对于棘轮43空转和手动轮的空转可以推测出手动轮20输出的力矩处于预设力矩，并且操作者的直观感受到棘爪32相对于棘轮43空转和手动轮20的空转的现象。在一些实施方式中，棘爪32在相对于棘轮43空转时会与棘轮43发出声响，可以通过声音体现出手动轮20输出的力矩处于预设力矩。
在一些实施方式中，棘轮43的周侧壁可以设有多个斜槽431，多个斜槽431沿着棘爪32的周向依次布置，各斜槽431的端部设有斜角部432。在一些实施方式中，斜槽431用于供棘爪32插接，并且斜槽431的内侧壁与棘爪32的端部相接触。
在一些实施方式中，在手动轮20输出的力矩小于预设力矩时，棘爪32在弹性件33的弹性作用力下持续插接于斜槽431，棘轮43随着手动轮20和棘爪32的转动而转动。在一些实施方式中，棘爪32在处于伸出状态时插接于斜槽431，并带动棘轮43转动。
在一些实施方式中，在手动轮20输出的力矩等于或大于预设力矩时，棘爪32随着手动轮20的转动而沿着各斜槽431的内侧壁滑动，棘轮43保持静止状态，棘爪32相对于棘轮43处于空转状态，棘爪32在斜槽431的内侧壁的带动下伸缩于支座31，并且通过弹性件33带动棘爪32的复位，保持了棘爪32在空转状态与棘轮43接触。
在一些实施方式中，棘爪32沿着斜槽431的内侧壁相对于支座31伸缩，并在弹性件33的弹性作用力下接触斜槽431的内侧壁。在一些实施方式中，棘爪32可以具有多个，多个棘爪32沿着棘轮43的周向间隔布置，并共同作用于同一棘轮43。
在一些实施方式中，棘轮43可以设有方形孔433，转轴41设有方形端411，方形端411插接于方形孔433，转轴41和棘轮43相卡合。
实施方式2：
与实施方式1不同的是，棘轮43和棘爪32均可以设置于手动轮20的背部，与手动轮20连接为一体。在一些实施方式中，棘轮43和棘爪32可以处于空转状态时，棘爪32可沿手动轮20的中心轴线自由转动。
实施方式3：
与实施方式1不同的是，棘轮43和棘爪32均可以设置于转轴41上。在一些实施方式中，转轴41可以分为两部分，转轴41中与制止件连接部分安装棘轮43，转轴41中与手动轮20的连接部分安装棘爪32。
依据本公开实施方式的一些技术方案，提供了一种手动制动机构，棘爪组件30安装于手动轮20的背部，并随着手动轮20的转动而转动；棘爪组件30设有可伸缩的棘爪32，棘爪32沿上下方向伸缩，转轴41可转动地连接于壳体10，链条42的一端牵引转轴41，另一端连接制动件，制动件随着链条42的拉动而制动于待制动物体；棘轮43套设于转轴41，棘爪32与棘轮43连接或空转。在一些实施方式中，在手动轮20输出的力矩小于预设力矩时，棘爪32插接于棘轮43，并与棘轮43相连接，棘轮43随着手动轮20和棘爪32的转动而转动，并经链条42带动制动件逐步制动于待制动物体。在一些实施方式中，手动轮20输出的力矩随着手动轮20和棘爪32的转动而逐步增大，在手动轮20输出的力矩等于或大于预设力矩时，棘爪32相对于棘轮43空转，保持着手动轮20输出的力矩，通过棘爪32相对于棘轮43空转和手动轮的空转可以推测出手动轮20输出的力矩处于预设力矩，并且操作者的直观 感受到棘爪32相对于棘轮43空转和手动轮20的空转的现象。在一些实施方式中，棘爪32在相对于棘轮43空转时会与棘轮43发出声响，可以通过声音体现出手动轮20输出的力矩处于预设力矩。在上述实施方式中，对各个实施方式的描述都各有侧重，某个实施方式中没有详述的部分，可以参见其他实施方式的相关描述。
在本公开的描述中，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。
本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施方式的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本公开的限制。

Claims (10)

  1. 一种手动制动机构，包括：
    壳体；
    手动轮，可转动地安装于所述壳体；
    棘爪组件，安装于所述手动轮的背部，并随着所述手动轮的转动而转动；所述棘爪组件设有可伸缩的棘爪；以及
    制动组件，安装于所述壳体；所述制动组件包括转轴、链条、制动件和棘轮；所述转轴可转动地连接于所述壳体，所述链条的一端间接牵引所述转轴，另一端连接所述制动件，所述制动件随着所述链条的拉动而制动于待制动物体；所述棘轮套设于所述转轴，所述棘爪与所述棘轮连接或空转。
  2. 根据权利要求1所述的一种手动制动机构，其中，所述棘轮的周侧壁设有多个斜槽，所述棘爪在处于伸出状态时插接于所述斜槽，并带动所述棘轮转动。
  3. 根据权利要求2所述的一种手动制动机构，其中，所述棘爪组件还包括支座，所述支座固定于所述手动轮的背部，所述棘爪可伸缩地连接于所述支座，并插接于所述斜槽。
  4. 根据权利要求3所述的一种手动制动机构，其中，所述棘爪组件还包括弹性件，所述弹性件容纳于所述支座内，并弹性抵接所述棘爪。
  5. 根据权利要求4所述的一种手动制动机构，其特征在于，所述棘爪组件还包括调节件，所述调节件设置于所述弹性件的上方；所述调节件螺接于所述支座，并挤压所述弹性件，以调整所述弹性件对所述棘爪的弹性作用力。
  6. 根据权利要求5所述的一种手动制动机构，其中，在手动轮输出的力矩小于预设力矩时，所述棘爪在所述弹性件的弹性作用力下持续插接于所述斜槽，所述棘轮随着所述手动轮和所述棘爪的转动而转动。
  7. 根据权利要求6所述的一种手动制动机构，其中，在手动轮输出的力矩等于或大于预设力矩时，所述棘爪随着所述手动轮的转动而沿着各所述斜槽的内侧壁滑动，所述棘轮保持静止状态。
  8. 根据权利要求7所述的一种手动制动机构，其中，所述棘爪沿着所述斜槽的内侧壁相对于所述支座伸缩，并在所述弹性件的弹性作用力下接触所述斜槽的内侧壁。
  9. 根据权利要求2所述的一种手动制动机构，其中，所述棘轮设有方形孔，所述转轴设有方形端，所述方形端插接于所述方形孔，所述转轴和所述棘轮相卡合。
  10. 根据权利要求2所述的一种手动制动机构，其中，多个所述斜槽沿着所述棘爪的周向依次布置，各所述斜槽的端部设有斜角部。
PCT/CN2023/095849 2022-11-03 2023-05-23 一种手动制动机构 WO2024093206A1 (zh)

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CN115899114A (zh) * 2022-11-03 2023-04-04 中车长江运输设备集团有限公司科技开发分公司 一种手动制动机构

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JP2544905Y2 (ja) * 1991-12-27 1997-08-20 豊田鉄工株式会社 パーキングブレーキ操作装置
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