WO2022178843A1 - Ensemble frein pour dispositif de protection de sécurité - Google Patents

Ensemble frein pour dispositif de protection de sécurité Download PDF

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Publication number
WO2022178843A1
WO2022178843A1 PCT/CN2021/078199 CN2021078199W WO2022178843A1 WO 2022178843 A1 WO2022178843 A1 WO 2022178843A1 CN 2021078199 W CN2021078199 W CN 2021078199W WO 2022178843 A1 WO2022178843 A1 WO 2022178843A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic rod
braking
brake
protection device
safety protection
Prior art date
Application number
PCT/CN2021/078199
Other languages
English (en)
Chinese (zh)
Inventor
邹家春
姚荣康
刘坤
张田生
陈明星
戴永强
Original Assignee
杭州沪宁电梯部件股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 杭州沪宁电梯部件股份有限公司 filed Critical 杭州沪宁电梯部件股份有限公司
Priority to PCT/CN2021/078199 priority Critical patent/WO2022178843A1/fr
Publication of WO2022178843A1 publication Critical patent/WO2022178843A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Definitions

  • the invention belongs to the technical field of elevator safety protection, and in particular relates to a braking assembly for a safety protection device.
  • a compression spring is arranged between the casing and the upper end of the braking wedge, the compression spring pushes the braking wedge downward obliquely, and the compression spring is fixed in place by a fixing bolt, and the The bolt is fixed in the brake wedge, but can move relative to the casing through the opening of the casing, and the diameter of the opening is larger than the diameter of the fixing bolt; The spring force on the moving wedge is parallel to the guide surface of the brake wedge.
  • one of the objectives of the present invention is to at least solve one or more of the above-mentioned problems existing in the prior art.
  • one of the objectives of the present invention is to provide one of the aforementioned requirements
  • One or more brake assemblies for a safety protection device is provided.
  • a braking assembly for a safety protection device includes a base and a braking block movably matched with the base, the braking assembly includes an elastic rod, and the elastic rod is along the pulling direction of the braking block Extend, the first end of the elastic rod is against the base, and the second end of the elastic rod is against the brake block; when the brake block is pulled to the target position, the brake block is deformed in conjunction with the elastic rod to prevent the brake block Create a force component towards the dual.
  • the vertical distance between the first end of the elastic rod and the braking surface of the brake pad is greater than the vertical distance between the second end of the elastic rod and the braking surface of the braking pad.
  • the change from the vertical distance between the first end of the elastic rod and the braking surface of the braking pad to the vertical distance between the second end and the braking surface of the braking pad is a linear change or a nonlinear change or a linear change.
  • the nonlinear change is an arc change.
  • the second end of the elastic rod extends to a predetermined depth inside the brake block.
  • the second end of the elastic rod is connected with the brake block to prevent disengagement.
  • elastic rods are respectively installed on both sides of the brake block.
  • a pressure-bearing seat is installed on the first end of the elastic rod, and the pressure-bearing seat, the elastic rod and the brake block form an integrated linkage structure; the pressure-bearing seat and the base are in surface contact fit.
  • the pressure-bearing seat is provided with a limit groove, and the limit groove is in limit fit with the first end of the elastic rod.
  • the base has a slot corresponding to the first end of the elastic rod, and the first end of the elastic rod is snap-fitted with the slot.
  • the present invention has the following beneficial effects:
  • the brake block When the brake block is pulled to the target position, the brake block is linked with the elastic rod to deform, thereby generating a component force on the brake block toward the counterpart, improving the stability of the braking force, and making the braking safer;
  • the elastic rod responds faster under the action of external force, and reduces the stroke to decelerate the safety brake instantly;
  • the occupied space of the elastic rod is smaller than that of the disc spring, which solves the problem that the height of the disc spring increases the structure size and affects the installation space, which is conducive to the miniaturization of the safety protection device; after replacing the disc spring, it solves the problem of the disc spring.
  • the internal resistance causes the defect of unstable force value; and there is no need to install multiple disc springs, and the installation is more convenient;
  • the elastic rod can be extended into the brake block or installed on both sides of the brake block to save space;
  • the pressure bearing seat, the elastic rod and the brake block form an integrated linkage structure, which ensures the force application angle of the elastic rod, and also facilitates the realization of the unilateral pulling motion function of the two-way safety gear;
  • the design of the pressure bearing seat or the card slot makes the deformation of the elastic rod more stable, further improves the stability of the braking force, and further improves the safety of the braking.
  • FIG. 1 is a schematic diagram of the main structure of the one-way safety gear according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural diagram of a left wedge block according to Embodiment 1 of the present invention.
  • Fig. 3 is the structural schematic diagram of the elastic rod of Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural diagram of the seat body of the pressure bearing seat according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of the limit plate of the pressure bearing seat according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic structural diagram of an integrated linkage structure composed of a pressure bearing seat, an elastic rod and a left wedge block according to Embodiment 1 of the present invention
  • FIG. 7 is a schematic diagram of the overall structure of the one-way safety gear according to Embodiment 1 of the present invention.
  • FIG. 8 is a schematic diagram of the main structure of the two-way safety gear according to Embodiment 2 of the present invention.
  • FIG. 9 is a schematic diagram of the overall structure of the two-way safety gear according to Embodiment 2 of the present invention.
  • the braking assembly for the safety protection device of this embodiment is applied to a one-way safety gear, that is, the safety protection device is a one-way safety gear.
  • the one-way safety gear includes a clamp body 1, a left wedge block 2-1 and a right wedge block 2-2.
  • the clamp body 1 vertically forms a U-shaped channel in cross section, and the channel runs through the clamp body.
  • the top surface and the bottom surface are used to install the elevator guide rails;
  • the clamping body 1 is located on both sides of the passage to form the installation recesses of the two wedge blocks, the installation recesses of the two wedge blocks are parallel, and the bottom of the installation recess of the left wedge block 2-1 is opposite to Its top is closer to the channel, and the bottom of the mounting recess of the right wedge 2-2 is further away from the channel than its top.
  • the right wedge 2-2 is connected with the pulling mechanism for pulling and braking. When the right wedge is pulled to the target position, the braking surfaces of the two wedges rub against the elevator guide rail (ie, the pair) to achieve braking.
  • the brake assembly of this embodiment includes an elastic rod 3, which extends along the pulling direction of the wedge block (ie, extends vertically), and the top end of the elastic rod 3 abuts against the mounting recess of the left wedge block 2-1 and the caliper In the transition section between the tops of the bodies, the bottom end of the elastic rod 3 abuts against the left wedge 2-1; wherein, as shown in FIG.
  • the top of the left wedge 2-1 has a deep groove 2a extending along its interior , the bottom end of the elastic rod 3 extends into the deep groove 2a; as shown in Figure 3, the bottom end of the elastic rod 3 has an anti-detachment hole 3a, and the left wedge 2-1 abuts against the anti-detachment hole through the bolt to achieve anti-detachment Installed so that part of the length of the elastic rod 3 is built in, the size of the one-way safety gear can be reduced, and the linkage between the elastic rod 3 and the left wedge 2-1 can be realized.
  • the vertical distance between the top end of the elastic rod 3 and the braking surface of the left wedge 2-1 is greater than the vertical distance between its bottom end and the braking surface of the left wedge 2-1, and the top end of the elastic rod 3
  • the change from the vertical distance from the braking surface of the left wedge block 2-1 to the vertical distance between its bottom end and the braking surface of the left wedge block 2-1 is an arc change, that is, the elastic rod 3 is an arc shape Bent rod structure.
  • the top end of the elastic rod 3 is installed with a pressure bearing seat 4, and the pressure bearing seat 4 is located below the transition section between the installation recess of the left wedge 2-1 of the caliper body and the top of the caliper body; specifically, as shown in FIG. 1
  • the pressure-bearing seat 4 includes a seat body located on the upper side and a limit plate 40 fixedly mounted on the lower side of the seat body.
  • the seat body has a limit groove 4a, the limit groove 4a and the elastic rod 3
  • the lower side of the spherical top of the elastic rod 3 has a clamping groove 3b (as shown in FIG.
  • the clamping position of the limit plate 40 is engaged with the clamping groove of the elastic rod, and the limit plate It is fixedly installed on the body of the pressure-bearing seat, so that the pressure-bearing seat 4 is linked with the elastic rod 3, so as to ensure the stability of the braking force generated by the deformation of the elastic rod.
  • the pressure-bearing seat 4, the elastic rod 3 and the left wedge block 2-1 form an integrated linkage structure, that is, the three move with the movement of the left wedge block, and the pressure-bearing seat 4 and the clamp body 1 are connected. There is a surface contact fit between them. On the one hand, it is used to prevent the top end of the elastic rod 3 from being displaced under the action of external force, and on the other hand, it ensures the force application angle of the elastic rod 3 .
  • the braking assembly for the safety protection device of this embodiment is applied to a two-way safety gear, that is, the safety protection device is a two-way safety gear.
  • the two-way safety gear includes a clamp body 1, a left wedge 2-1 and a right wedge 2-2.
  • the clamp body 1 vertically forms a U-shaped channel in cross section, and the channel runs through the top of the clamp body.
  • the surface and the bottom surface are used to install the elevator guide rail;
  • the clamping body 1 is located on both sides of the passage to form two wedge mounting recesses, the mounting recesses of the two wedges are parallel, and the bottom of the mounting recess of the left wedge 2-1 is opposite to its
  • the top is closer to the channel and the bottom of the mounting recess of the right wedge 2-2 is further away from the channel than its top.
  • the left wedge 2-1 and the right wedge 2-2 are respectively connected with their respective pulling mechanisms for pulling and braking.
  • the brake assembly of this embodiment includes two elastic rods 3 respectively disposed corresponding to the two wedges, and the elastic rods 3 extend along the pulling direction of the wedges (ie, extend vertically).
  • the top end of the elastic rod 3 abuts against the transition section between the installation recess of the left wedge 2-1 and the top of the caliper body, and the bottom end of the elastic rod 3 abuts against the left wedge 2- 1;
  • the top of the left wedge 2-1 has a deep groove extending along its interior (refer to Embodiment 1), and the bottom end of the elastic rod 3 is installed in the deep groove, so that part of the length of the elastic rod 3 is built in, which can be The size reduction of the two-way safety gear is realized.
  • the vertical distance between the top end of the elastic rod 3 and the braking surface of the left wedge 2-1 is greater than the vertical distance between its bottom end and the braking surface of the left wedge 2-1, and the top end of the elastic rod 3
  • the change from the vertical distance from the braking surface of the left wedge block 2-1 to the vertical distance between its bottom end and the braking surface of the left wedge block 2-1 is an arc change, that is, the elastic rod 3 is an arc shape Bent rod structure.
  • the bottom end of the elastic rod 3 abuts against the transition section between the installation recess of the right wedge 2-2 and the bottom of the caliper body, and the top end of the elastic rod 3 abuts against the right wedge 2- 2;
  • the bottom of the right wedge 2-2 has a deep groove extending along its interior, and the bottom end of the elastic rod 3 is installed in the deep groove, so that part of the length of the elastic rod 3 is built-in, and the size of the two-way safety gear can be reduced. .
  • the vertical distance between the bottom end of the elastic rod 3 and the braking surface of the right wedge 2-2 is greater than the vertical distance between its top end and the braking surface of the right wedge 2-2, and the bottom of the elastic rod 3
  • the change from the vertical distance between the end and the braking surface of the right wedge block 2-2 to the vertical distance between its top end and the braking surface of the right wedge block 2-2 is an arc change, that is, the elastic rod 3 is an arc shape Bent rod structure.
  • a pressure-bearing seat 4 is installed on the top thereof, and the specific installation structure can refer to Embodiment 1, which is used to prevent the top end of the elastic rod 3 from shifting under the action of external force.
  • the structure of the pressure bearing seat 4 reference may be made to Embodiment 1, and details are not described here.
  • the pressure bearing seat 4 is also installed at the bottom, and the installation structure of the left wedge block, the elastic rod on the left side and the pressure bearing seat is rotated 180 degrees to obtain the right wedge block, the elastic rod on the right side and the The installation structure of the pressure bearing seat.
  • the change from the vertical distance between the top end of the elastic rod and the braking surface of the corresponding wedge to the vertical distance between the bottom end and the braking surface of the corresponding wedge is a linear change.
  • the wedge blocks generate a component force towards the elevator guide rail, which realizes structural diversification and meets the needs of different applications.
  • Embodiment 1 For other structures, refer to Embodiment 1 or Embodiment 2.
  • the change from the vertical distance between the top end of the elastic rod and the braking surface of the corresponding wedge to the vertical distance between the bottom end and the braking surface of the corresponding wedge is linear change + non-linear change, for example: the upper half of the elastic rod is linear
  • the changing section, the lower half is an arc section, can also realize the component force on the corresponding wedge block towards the elevator guide rail, realize the structure diversification, and meet the needs of different application occasions.
  • Embodiment 1 For other structures, refer to Embodiment 1 or Embodiment 2.
  • the elastic rod can not be fixedly installed with the corresponding wedge block, that is, the elastic rod can be inserted into the deep groove of the corresponding wedge block, as long as it does not break away from the wedge block or the elastic rod is fixed with the pressure bearing seat within the movable stroke of the wedge block, so as to realize various structures. to meet the needs of different applications.
  • Embodiment 1 For other structures, refer to Embodiment 1 or Embodiment 2.
  • the installation methods and quantities of the elastic rods are different.
  • the elastic rods can be installed on the front and rear sides of the wedge, that is, lugs or installation grooves are distributed and formed on the front and rear sides of the wedge, and the elastic rods abut against the corresponding
  • the lugs are embedded in the corresponding installation grooves, and the corresponding wedges can also generate a force component toward the elevator guide rail, realize the structure diversification, and meet the needs of different application occasions.
  • Embodiment 1 For other structures, refer to Embodiment 1 or Embodiment 2.
  • a clamping groove can be designed directly at the corresponding position of the clamp body corresponding to the end of the elastic rod. Generates stability in braking force. Realize structure diversification to meet the needs of different applications.
  • Embodiment 1 For other structures, refer to Embodiment 1 or Embodiment 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

L'invention concerne un ensemble frein pour un dispositif de protection de sécurité. Le dispositif de protection de sécurité comprend une base et un bloc de frein qui s'ajuste de façon mobile sur la base. L'ensemble frein comprend une tige élastique (3), la tige élastique (3) s'étendant dans la direction de traction du bloc de frein ; une première extrémité de la tige élastique (3) vient en butée contre la base, et une seconde extrémité de la tige élastique (3) vient en butée contre le bloc de frein ; et lorsqu'il est tiré vers une position cible, le bloc de frein est relié à la tige élastique pour faire se déformer celle-ci, de sorte qu'une force composante vers un élément d'accouplement soit produite sur le bloc de frein. Dans l'ensemble frein, la taille globale est réduite, et l'espace d'installation est réduit ; l'ensemble frein, qui est intégré à un élément élastique, peut se déplacer vers le haut et vers le bas, et ainsi un freinage bidirectionnel est obtenu facilement, ce qui réduit considérablement la hauteur globale d'un dispositif frein bidirectionnel ; et la stabilité du frein est améliorée au moyen de la réaction rapide de la tige élastique, ce qui améliore la sécurité de freinage.
PCT/CN2021/078199 2021-02-26 2021-02-26 Ensemble frein pour dispositif de protection de sécurité WO2022178843A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/078199 WO2022178843A1 (fr) 2021-02-26 2021-02-26 Ensemble frein pour dispositif de protection de sécurité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/078199 WO2022178843A1 (fr) 2021-02-26 2021-02-26 Ensemble frein pour dispositif de protection de sécurité

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WO2022178843A1 true WO2022178843A1 (fr) 2022-09-01

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1266826A1 (ru) * 1984-07-16 1986-10-30 Центральное Проектно-Конструкторское Бюро По Лифтам Всесоюзного Промышленного Объединения "Союзлифтмаш" Ловитель кабины лифта
US5782319A (en) * 1996-02-12 1998-07-21 Montgomery Kone Inc. Elevator car and counterweight safety
CN203497871U (zh) * 2013-10-22 2014-03-26 宁波赛富特电梯部件有限公司 一种渐进式安全钳
JP2017048011A (ja) * 2015-09-02 2017-03-09 フジテック株式会社 エレベータ用非常止め装置
CN106494962A (zh) * 2015-09-08 2017-03-15 奥的斯电梯公司 一种电梯用安全装置
CN111776911A (zh) * 2020-07-20 2020-10-16 台州学院 防失效电梯安全钳及电梯
CN111977488A (zh) * 2020-09-09 2020-11-24 山东劳动职业技术学院（山东劳动技师学院） 一种电梯用双向安全钳
CN212222084U (zh) * 2020-06-03 2020-12-25 苏州东方富力电梯部件有限公司 一种电梯用安全钳

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1266826A1 (ru) * 1984-07-16 1986-10-30 Центральное Проектно-Конструкторское Бюро По Лифтам Всесоюзного Промышленного Объединения "Союзлифтмаш" Ловитель кабины лифта
US5782319A (en) * 1996-02-12 1998-07-21 Montgomery Kone Inc. Elevator car and counterweight safety
CN203497871U (zh) * 2013-10-22 2014-03-26 宁波赛富特电梯部件有限公司 一种渐进式安全钳
JP2017048011A (ja) * 2015-09-02 2017-03-09 フジテック株式会社 エレベータ用非常止め装置
CN106494962A (zh) * 2015-09-08 2017-03-15 奥的斯电梯公司 一种电梯用安全装置
CN212222084U (zh) * 2020-06-03 2020-12-25 苏州东方富力电梯部件有限公司 一种电梯用安全钳
CN111776911A (zh) * 2020-07-20 2020-10-16 台州学院 防失效电梯安全钳及电梯
CN111977488A (zh) * 2020-09-09 2020-11-24 山东劳动职业技术学院（山东劳动技师学院） 一种电梯用双向安全钳

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