WO2021098188A1 - 双向自锁防坠落滑轮 - Google Patents

双向自锁防坠落滑轮 Download PDF

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Publication number
WO2021098188A1
WO2021098188A1 PCT/CN2020/094682 CN2020094682W WO2021098188A1 WO 2021098188 A1 WO2021098188 A1 WO 2021098188A1 CN 2020094682 W CN2020094682 W CN 2020094682W WO 2021098188 A1 WO2021098188 A1 WO 2021098188A1
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WIPO (PCT)
Prior art keywords
shaft
pulley
driven
driven shaft
locking anti
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PCT/CN2020/094682
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English (en)
French (fr)
Inventor
陈根平
Original Assignee
陈根平
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Publication date
Application filed by 陈根平 filed Critical 陈根平
Publication of WO2021098188A1 publication Critical patent/WO2021098188A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/50—Features essential to rope pulleys

Definitions

  • the utility model relates to the technical field of pulleys, in particular to a two-way self-locking anti-falling pulley.
  • the pulley block is formed by matching several fixed pulleys and movable pulleys, which can save effort and change the direction of force. In use, the amount of effort saved and the winding method of the rope depend on the effect of the pulley block.
  • the pulley is borne by two ropes, that is, the force of each rope bearing the object and the moving pulley is a fraction of the total weight of the object and the moving pulley.
  • the purpose of the present utility model is to provide a two-way self-locking anti-falling pulley, so as to solve the problem that the existing two-way self-locking pulley proposed in the background art cannot adapt to heavy goods. Self-locking the pulley under the condition of high speed, the goods are easy to fall The problem.
  • a two-way self-locking anti-falling pulley includes a pulley body.
  • the pulley body is provided with a driving shaft and a driven shaft.
  • the driving shaft is externally fixed with a driving shaft disk
  • the driven shaft is provided with a driven shaft disk
  • the driven shaft disk is provided with a clamping wheel
  • the clamping wheel is provided with a limiting groove
  • the driven shaft is penetrated with a clamping needle
  • the clamping wheel is
  • a clamping post is provided, a transmission rod is arranged on the clamping post to connect with the active rotating shaft, and a hanging ring is arranged on the top of the pulley body.
  • the pulley body is provided with a cover plate, and the cover plate is provided with holes at positions corresponding to the sizes of the driving shaft and the driven shaft.
  • the driving shaft and the clamping column are cylindrical, and both the driving shaft and the clamping column are provided with an inner groove having the same width as the transmission rod.
  • the driven shaft is in the shape of a hollow ring cylinder, and the driven shaft is provided with two sets of channels opposite to each other, and the cross-sections of the channels and the clamping needles are the same.
  • the length of the pin is greater than the distance from the top of the driven shaft to the bottom of the limiting groove, and greater than the distance from the bottom of the driven shaft to the top of the limiting groove.
  • the transmission rod is made of elastic rubber.
  • the beneficial effect of the present invention is that the two-way self-locking anti-falling pulley transports goods through the driving gear, drives the rotation of the driven gear, and then transfers the goods through the clamping wheel provided on the driven turntable.
  • the design-like gear with the pin in the limit slot locks the driven shaft under the condition of high speed, thereby preventing the goods from falling.
  • Figure 1 is a schematic diagram of the structure of the two-way self-locking anti-falling pulley of the utility model
  • Figure 2 is a schematic diagram of the clamping wheel structure of the two-way self-locking anti-falling pulley of the present invention
  • Figure 3 is a schematic diagram of the cover structure of the two-way self-locking anti-falling pulley of the present invention.
  • this utility model provides a technical solution: a two-way self-locking anti-fall pulley, including a pulley body 1, on the pulley body 1 is provided with a driving shaft 5 and a driven shaft 7, the driving shaft 5 is externally fixed
  • the driving shaft disk 4, the driven shaft 7 is provided with a driven shaft disk 6, and the pulley body 1 is provided with a cover plate 14, and the cover plate is provided with holes corresponding to the size of the driving shaft 5 and the driven shaft 7, so The parts between them can be fixed by the pulley body 1 and the cover 14.
  • the driven shaft plate 6 is provided with a clamping wheel 8, and the clamping wheel 8 is provided with a limit slot 9 and the driven shaft 7 is penetrated with a clamping pin 10, and the driven shaft 7 is in the shape of a hollow ring cylinder, and the driven shaft 7 is provided with two sets of channels opposite to each other, and the cross-sections of the channels and the clamping needle 10 are the same, so that the clamping needle 10 can be moved from under normal speed
  • the channel falls due to gravity, and is stuck at the bayonet of the limit slot 9 due to the effect of inertia when the speed is fast, thereby preventing the goods from falling, and the length of the clamping needle 10 is greater than the top of the driven shaft 7
  • the distance to the bottom of the limiting slot 9 is greater than the distance from the bottom of the driven shaft 7 to the top of the limiting slot 9, so that the pin 10 will not fall out of the driven shaft 7, and a pin 13 is provided on the card wheel 8.
  • the clamping column 13 is provided with a transmission rod 11 connected with the driving shaft 5, and the driving shaft 5 and the clamping column 13 are cylindrical, and both the driving shaft 5 and the clamping column 13 are provided with inner grooves having the same width as the transmission rod 11 In this way, the transmission rod 11 can be clamped on the driving shaft 5 and the clamping column 13, and the transmission rod 11 is made of elastic rubber material, so that the transmission rod 11 has a certain degree of elasticity and exerts a pulling force on the moving chucking wheel 8, and The top of the pulley body 1 is provided with a hanging ring 12.
  • the pin 10 When the goods are falling at extreme speed, due to acceleration inertia, the pin 10 will be directly stuck at the bayonet of the limit slot 9, making the driven shaft disk 6 unable to move, and the driven shaft disk 6 There is a chucking wheel 8, and a transmission rod 11 is connected between the chucking wheel 8 and the driving shaft plate 4 through the clamping column 13 and the driving shaft 5. Through the pulling force of the transmission rod 11, the chucking wheel group can be self-locked. Working process of two-way self-locking anti-falling pulley.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulleys (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

一种双向自锁防坠落滑轮，包括滑轮主体（1），滑轮主体（1）上设有主动转轴（5）和从动转轴（7），主动转轴（5）外固定设有主动轴盘（4），从动转轴（7）外设有从动轴盘（6），从动轴盘（6）上设有卡轮（8），卡轮（8）内设有限位槽（9），且从动转轴（7）内穿有卡针（10），卡轮（8）上设有卡柱（13），卡柱（13）上设有传动杆（11）和主动转轴（5）相连接，且滑轮主体（1）顶部设有挂环（12），滑轮主体（1）上设有盖板（14），盖板（14）上设有和主动转轴（5）与从动转轴（7）大小对应位置的孔洞。该双向自锁防坠落滑轮通过主动齿轮对货物进行运输，带动从动齿轮的转动，进而通过从动转盘上设有的卡轮对货物进行自锁，卡针在限位槽内的设计使得齿轮在速度较快的情况下对从动转轴进行卡位，进而防止货物的坠落。

Description

双向自锁防坠落滑轮 技术领域
本实用新型涉及滑轮技术领域，具体为双向自锁防坠落滑轮。
 背景技术
滑轮组是由若干个定滑轮和动滑轮匹配而成，可以达到既省力又改变力作用方向的目的。使用中，省力多少和绳子的绕法，决定于滑轮组的使用效果。滑轮被两根绳子承担，即每根绳承担物体和动滑轮力就是物体和动滑轮总重的几分之一。
现有公开的一种双向自锁滑轮，申请号CN201721556599.2，通过滚动轴承绕承重轴转动，偏心凸轮设置在滚动轴承的上方，并且偏心凸轮能够绕固定轴转动，进而通过锁止面和限位销限制偏心凸轮的转动，实现滑轮的自锁，但是该设备无法适应过重货物在速度较快的情况下对滑轮进行自锁，货物容易坠落，现设计一种双向自锁防坠落滑轮，通过从动轴盘上设有的卡轮，用卡针卡合在限位槽内，实现滑轮的自锁防坠落功能。
 技术问题
本实用新型的目的在于提供双向自锁防坠落滑轮，以解决上述背景技术中提出的现有的双向自锁滑轮无法适应过重货物在速度较快的情况下对滑轮进行自锁，货物容易坠落的问题。
 技术解决方案
为实现上述目的，本实用新型提供如下技术方案，双向自锁防坠落滑轮，包括滑轮主体，所述滑轮主体上设有主动转轴和从动转轴，所述主动转轴外固定设有主动轴盘，所述从动转轴外设有从动轴盘，所述从动轴盘上设有卡轮，所述卡轮内设有限位槽，且从动转轴内穿有卡针，所述卡轮上设有卡柱，所述卡柱上设有传动杆和主动转轴相连接，且滑轮主体顶部设有挂环。
优选的，所述滑轮主体上设有盖板，所述盖板上设有和主动转轴与从动转轴大小对应位置的孔洞。
优选的，所述主动转轴和卡柱为圆柱状，且主动转轴和卡柱上均设有和传动杆宽度相等的内槽。
优选的，所述从动转轴为空心环柱体状，且从动转轴上对立开设有两组通道，且该通道和卡针的截面相同。
优选的，所述卡针的长度大于从动转轴顶部到限位槽底部的距离，且大于从动转轴底部到限位槽顶部的距离。
优选的，所述传动杆为弹性橡胶材质。
 有益效果
与现有技术相比，本实用新型的有益效果是：该双向自锁防坠落滑轮通过主动齿轮对货物进行运输，带动从动齿轮的转动，进而通过从动转盘上设有的卡轮对货物进行自锁，卡针在限位槽内的设计似的齿轮在速度较快的情况下对从动转轴进行卡位，进而防止货物的坠落。
 附图说明
图1为本实用新型双向自锁防坠落滑轮结构示意图；
图2为本实用新型双向自锁防坠落滑轮的卡轮结构示意图；
图3为本实用新型双向自锁防坠落滑轮的盖板结构示意图。
图中：1、滑轮主体，2、主动齿轮，3、从动齿轮，4、主动轴盘，5、主动转轴，6、从动轴盘，7、从动转轴，8、卡轮，9、限位槽，10、卡针，11、传动杆，12、挂环，13、卡柱，14、盖板。
 本发明的最佳实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参阅图1-3，本实用新型提供一种技术方案：双向自锁防坠落滑轮，包括滑轮主体1，滑轮主体上1设有主动转轴5和从动转轴7，主动转轴5外固定设有主动轴盘4，从动转轴7外设有从动轴盘6，且滑轮主体1上设有盖板14，盖板上设有和主动转轴5与从动转轴7大小对应位置的孔洞，这样可以通过滑轮主体1和盖板14对其之间的零件进行固定，从动轴盘6上设有卡轮8，卡轮8内设有限位槽9，且从动转轴7内穿有卡针10，且从动转轴7为空心环柱体状，且从动转轴7上对立开设有两组通道，且该通道和卡针10的截面相同，这样卡针10可以在速度正常的情况下从该通道中因重力下落，而在速度较快的情况下因惯性的作用卡在限位槽9的卡口处，进而可以防止货物的掉落，且卡针10的长度大于从动转轴7顶部到限位槽9底部的距离，且大于从动转轴7底部到限位槽9顶部的距离，使得卡针10不会从从动转轴7内掉落出来，卡轮8上设有卡柱13，卡柱13上设有传动杆11和主动转轴5相连接，且主动转轴5和卡柱13为圆柱状，且主动转轴5和卡柱13上均设有和传动杆11宽度相等的内槽，这样可以使得传动杆11卡合在主动转轴5和卡柱13上，且传动杆11为弹性橡胶材质，这样传动杆11具有一定的弹性，对运动的卡轮8起到拉力的作用，且滑轮主体1顶部设有挂环12。
工作原理：在使用该双向自锁防坠落滑轮时，先将需要运输的货物固定在绳索上，将绳索卡合在滑轮主体1和盖板14之间，并和主动齿轮2相咬合，将滑轮主体1通过挂环12固定在高空，通过拉动绳索的另一端，对货物进行拉伸，主动齿轮2通过主动轴盘4进行旋转，接着带动咬合在主动齿轮2上的从动齿轮3，从动齿轮3和从动转轴7固定连接，因此从动转轴7进行同步旋转，此时拉动货物的速度正常，卡针10因为重力的原因，在进行周期运动的时候，卡针10从从动转轴7内设有的通道下落，当货物极速下落的时候，由于加速度惯性的原因，卡针10会直接卡在限位槽9的卡口处，使得从动轴盘6无法运动，从动轴盘6上设有卡轮8，卡轮8和主动轴盘4之间通过卡柱13和主动转轴5连接有传动杆11，通过传动杆11拉力的作用，对卡轮组实现自锁，以上为本双向自锁防坠落滑轮工作过程。
尽管参照前述实施例对本实用新型进行了详细的说明，对于本领域的技术人员来说，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，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。

Claims (6)

  1. 双向自锁防坠落滑轮，包括滑轮主体（1），其特征在于：所述滑轮主体上（1）设有主动转轴（5）和从动转轴（7），所述主动转轴（5）外固定设有主动轴盘（4），所述从动转轴（7）外设有从动轴盘（6），所述从动轴盘（6）上设有卡轮（8），所述卡轮（8）内设有限位槽（9），且从动转轴（7）内穿有卡针（10），所述卡轮（8）上设有卡柱（13），所述卡柱（13）上设有传动杆（11）和主动转轴（5）相连接，且滑轮主体（1）顶部设有挂环（12）。
  2. 根据权利要求1所述的双向自锁防坠落滑轮，其特征在于：所述滑轮主体（1）上设有盖板（14），所述盖板上设有和主动转轴（5）与从动转轴（7）大小对应位置的孔洞。
  3. 根据权利要求1所述的双向自锁防坠落滑轮，其特征在于：所述主动转轴（5）和卡柱（13）为圆柱状，且主动转轴（5）和卡柱（13）上均设有和传动杆（11）宽度相等的内槽。
  4. 根据权利要求1所述的双向自锁防坠落滑轮，其特征在于：所述从动转轴（7）为空心环柱体状，且从动转轴（7）上对立开设有两组通道，且该通道和卡针（10）的截面相同。
  5. 根据权利要求1所述的双向自锁防坠落滑轮，其特征在于：所述卡针（10）的长度大于从动转轴（7）顶部到限位槽（9）底部的距离，且大于从动转轴（7）底部到限位槽（9）顶部的距离。
  6. 根据权利要求1所述的双向自锁防坠落滑轮，其特征在于：所述传动杆（11）为弹性橡胶材质。
PCT/CN2020/094682 2019-11-21 2020-06-05 双向自锁防坠落滑轮 WO2021098188A1 (zh)

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CN201922026448.1 2019-11-21
CN201922026448.1U CN211226137U (zh) 2019-11-21 2019-11-21 双向自锁防坠落滑轮

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07267588A (ja) * 1994-03-31 1995-10-17 Ootaka Densetsu Kk チェーンのロック装置
CN2364013Y (zh) * 1999-02-09 2000-02-16 黄明辉 手动葫芦
US20030071253A1 (en) * 2001-01-10 2003-04-17 Lob Charles J. Lifting device
CN201518649U (zh) * 2009-11-02 2010-07-07 晋江市中兴农牧机械有限公司 一种双向自锁卷扬机
CN205472404U (zh) * 2016-02-01 2016-08-17 国网冀北电力有限公司秦皇岛供电公司 自锁滑轮装置
CN206088873U (zh) * 2016-08-30 2017-04-12 福建省东山县辉永泰体育用品实业有限公司 一种带制停保护的滑轮组
CN207497957U (zh) * 2017-11-21 2018-06-15 谢宇轩 一种双向自锁滑轮

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07267588A (ja) * 1994-03-31 1995-10-17 Ootaka Densetsu Kk チェーンのロック装置
CN2364013Y (zh) * 1999-02-09 2000-02-16 黄明辉 手动葫芦
US20030071253A1 (en) * 2001-01-10 2003-04-17 Lob Charles J. Lifting device
CN201518649U (zh) * 2009-11-02 2010-07-07 晋江市中兴农牧机械有限公司 一种双向自锁卷扬机
CN205472404U (zh) * 2016-02-01 2016-08-17 国网冀北电力有限公司秦皇岛供电公司 自锁滑轮装置
CN206088873U (zh) * 2016-08-30 2017-04-12 福建省东山县辉永泰体育用品实业有限公司 一种带制停保护的滑轮组
CN207497957U (zh) * 2017-11-21 2018-06-15 谢宇轩 一种双向自锁滑轮

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