WO2012024933A1 - 一种电梯补偿装置 - Google Patents

一种电梯补偿装置 Download PDF

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Publication number
WO2012024933A1
WO2012024933A1 PCT/CN2011/072577 CN2011072577W WO2012024933A1 WO 2012024933 A1 WO2012024933 A1 WO 2012024933A1 CN 2011072577 W CN2011072577 W CN 2011072577W WO 2012024933 A1 WO2012024933 A1 WO 2012024933A1
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WIPO (PCT)
Prior art keywords
linkage shaft
safety
elevator
guiding device
fixing device
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PCT/CN2011/072577
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English (en)
French (fr)
Inventor
王友林
张建宏
俞诚
郑尧
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康力电梯股份有限公司
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Priority to RU2013111957/11A priority Critical patent/RU2554726C2/ru
Publication of WO2012024933A1 publication Critical patent/WO2012024933A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/068—Cable weight compensating devices

Definitions

  • the invention relates to a compensation device, in particular to an elevator compensation device, belonging to the technical field of electric lifting devices.
  • the existing elevator compensation device for the medium and low speed elevators is shown in Figure 1. It includes five components: guiding device 1, fixing device 2, travel switch frame 3, limit ram frame 4 and counterweight block 5. . Both ends of the fixture are vertical rails.
  • the guiding device is slidably connected to the guide rails at both ends of the fixing device, and the two tensioning wheels and the fixing device in the guiding device are in the same plane. Both ends of the guiding device are respectively connected with the car and the compensation rope on the counterweight.
  • the compensating rope traction guide moves up and down along the guide rail of the fixture.
  • Two stroke switch holders are arranged above and below each of the guide rails of the fixing device.
  • the travel switch frame can be adjusted up and down along the rails of the fixture.
  • the limit ram frame is mounted on the guide and moves in the vertical direction with the guide.
  • the counterweight block is placed on the underside of the guide.
  • a travel switch is arranged on the travel switch frame, so when the guide device moves beyond the preset travel limit, the limit slamming bow touches the travel switch, and then the safety circuit of the elevator is cut off, and the elevator is braked to ensure the safety of the elevator.
  • the compensation rope has a bouncing due to inertial overshoot or the like during the elevator lifting process. Since the elevator compensation device of the above-mentioned prior structure has no further safety device, the safety brake of the guiding device cannot be realized when the amplitude of the elevator compensation rope is excessively large, and as a result, the elevator equipment may be damaged, and thus there is a safety hazard.
  • the technical problem to be solved by the present invention is to provide an elevator compensation device capable of safely braking a guiding device when the amplitude of the elevator compensation rope is excessively large, thereby protecting the elevator equipment and ensuring high-speed operation of the elevator. Security performance.
  • the technical solution adopted by the present invention is: a compensation device for an elevator, comprising a fixing device having a vertical rail at both ends, a guiding device forming a moving pair with the vertical rail, and being disposed on the fixing device.
  • the safety gear is fixed on the guiding device, and the lower end is connected to the first radial extension arm of the linkage shaft horizontally supported on the guiding device by the lifting rod; the second radial extending arm of the linkage shaft and the rod The upper end is connected, and the lower end of the pull rod is perforated through a positioning plate fixed on the fixing device, and the limiting member is mounted.
  • the safety gear, the lifting rod, the linkage shaft and the pulling rod in the safety device also move upward.
  • the positioning plate since the positioning plate is fixed to the fixing device, it does not move with it. After the rod is moved upward by a certain distance, the limiting member is blocked by the positioning plate, and can not continue to move upward, so that the linkage shaft of the hinge on the guiding device swings around the horizontal axis, and then the safety clamp is pulled by the lifting rod to generate the guiding device. Brake braking to avoid accidents and equipment damage.
  • FIG. 1 is a schematic perspective view of a compensation device of a conventional elevator.
  • FIG. 2 is a schematic perspective view of an embodiment of the present invention.
  • FIG. 3 is a schematic perspective view of the safety device of the embodiment of FIG. 2.
  • the ladder compensation device of the present embodiment includes a guiding device 1, a fixing device 2, a stroke switch frame 3, a limit ram frame 4, a weight bar 5 and a safety device 6. Both ends of the fixing device 2 extend upwardly from the vertical guide rail.
  • the guiding device 1 is slidably engaged with the guide rails at both ends of the fixing device 2 to constitute a moving pair. Both ends of the guiding device 1 respectively connect the car and the compensation rope on the counterweight.
  • the compensating rope traction guide 1 moves up and down along the guide rail of the fixture 2.
  • trip switch frames 3 which are respectively arranged on the upper and lower portions of the guide rails at both ends of the fixing device 2, and the specific positions thereof can be adjusted up and down along the guide rails.
  • Two limit rams 4 are respectively installed at both ends of the guiding device 1 and are located between the upper and lower stroke switch frames 3. The limit ram frame 4 moves up and down with the guiding device 1 in the vertical direction.
  • the safety device 6 includes a safety gear 601, a lifting rod 602, a linkage shaft 603, a tie rod 604, and a positioning plate 605.
  • the extension arm is vertically constrained (with a certain gap in other directions).
  • the linkage shaft 603 is worn in a reserved horizontal hole of the guiding device 1 and can be swung to form a horizontal hinge structure.
  • the upper end of the tie rod 604 is vertically constrainedly connected to the second radially extending arm of the linkage shaft 603, and the lower end passes through the perforation of the positioning plate 605, and the limit nut is mounted.
  • the positioning plate 605 is fixed to the fixture 2.
  • the safety device operates on the principle that when the guiding device 1 moves upward due to the jumping of the compensating rope, the safety gear 601, the lifting rod 602, the linkage shaft 603 and the tie rod 604 also move upward.
  • the positioning plate 605 is fixed to the fixture 2 and therefore cannot move with it. After the pull rod 604 is moved upward by a certain distance (the specific moving distance can be adjusted by the limit nut as needed), the limit nut is blocked by the positioning plate 605, and the pull rod 604 cannot continue to move upward.
  • the pull rod 604 will drive the linkage shaft 603 to swing around the guiding device 1 through the second radial extending arm, and then pull the pulling rod 602 connected thereto through the first radial extending arm, and the lifting rod 602 pulls the safety gear 601 again. Therefore, the safety gear 601 generates a timely braking action on the guiding device 1 with respect to the fixing device 2, and prevents the guiding device 1 from rushing out of the fixing device 2 to cause a malfunction.
  • the safety device 6 further includes a fixing base 606 fixedly connected to the guiding device 1 , and the lifting rod 602 passes through the through hole in the fixing base 606 .
  • the movement of the lifting rod 602 can be restrained by the guiding of the through hole of the fixing seat 606, and the amplitude is prevented from being excessively large, and motion interference is generated.
  • a further improvement of the embodiment is that the plane formed by the two tensioning wheels in the guiding device 1 is perpendicular to the plane in which the fixing device 2 is located (the plane formed by the two tensioning wheels and the plane of the fixing device in the guiding device in the prior art) In the same plane).
  • the space of the elevator shaft pit can be effectively saved, and on the other hand, the force intensity of the entire compensation device in the front, rear, left and right directions is ensured to be uniform, and the local force intensity is uneven, thereby causing unevenness. Damage to the entire compensation device.
  • a further improvement of this embodiment is that the counterweight block 5 is located on both sides of the guiding device 1 (the prior art weighting block is placed on the lower side of the guiding device). This makes it easy for the operator to adjust the weight of the entire compensation device according to the installation situation of the elevator.
  • this embodiment has the following significant advantages over the prior art:
  • the compact structure effectively saves the pit space of the shaft and ensures uniform force of the entire compensation device.
  • the plane formed by the two tensioning wheels in the guiding device is in the same plane as the plane of the fixing device.
  • the plane formed by the two tensioning wheels in the guiding device is perpendicular to the plane in which the fixture is located. In this way, on the one hand, the space of the elevator shaft pit can be effectively saved, and on the other hand, the force intensity of the entire compensation device is ensured to be uniform, and the local force intensity unevenness is avoided, resulting in damage of the entire compensation device.
  • the vertical restraint may employ various structures such as hooking, hinge, etc., for example, the lengths of the first and second radially extending arms may be designed as a labor-saving structure as needed, and the like. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Types And Forms Of Lifts (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Jib Cranes (AREA)

Description

一种电梯补偿装置 技术领域
本发明涉及一种补偿装置，具体涉及一种电梯补偿装置，属于电动升降装置技术领域。
背景技术
据申请人了解，现有中低速电梯常见的电梯补偿装置如图1所示，包括导向装置1、固定装置2、行程开关架3、限位撞弓架4和配重砣块5五个部件。固定装置的两端为竖直的导轨。导向装置与固定装置两端的导轨滑动连接，并且导向装置中的两个张紧轮和固定装置处于同一平面内。导向装置两端分别与轿厢和对重上的补偿绳连接。该补偿绳牵引导向装置沿固定装置的导轨上下运动。固定装置的每根导轨中分别上、下布置两个行程开关架。行程开关架可以沿着固定装置的导轨上下调节。限位撞弓架安装在导向装置上，并随导向装置在铅垂方向运动。配重砣块放置在导向装置的内部下侧。行程开关架上安置有行程开关，因此当导向装置动作超出预设行程限制时，限位撞弓会碰触到行程开关，继而切断电梯的安全回路，制动电梯，保障电梯的安全。
然而，对于高速电梯而言，补偿绳在电梯升降过程中存在由于惯性过冲等原因导致的跳动。上述现有结构的电梯补偿装置由于没有进一步保险装置，因此不能在电梯补偿绳跳动幅度过大时，实现导向装置的安全刹车，结果可能导致电梯设备损坏，因此存在安全隐患。
 技术问题
本发明所要解决的技术问题是，提供一种在可以在电梯补偿绳跳动幅度过大时，使导向装置安全制动的电梯补偿装置，从而对电梯设备起到保护作用，保证电梯高速运行时的安全性能。
 技术解决方案
为解决上述技术问题，本发明采用的技术方案是：一种电梯的补偿装置，包括两端具有垂向导轨的固定装置、与所述垂向导轨构成移动副的导向装置、安置在固定装置上的上下行程开关架、安置在导向装置上且位于上下形成开关架之间的限位撞弓架；其改进之处在于：还含有由安全钳、提拉杆、联动轴、拉杆和定位板构成的安全装置；所述安全钳固定在导向装置上，下端通过提拉杆与水平铰支在导向装置上的联动轴第一径向延伸臂连接；所述联动轴的第二径向延伸臂与拉杆的上端连接，所述拉杆的下端穿过固定在固定装置上的定位板穿孔，且装有限位件。
工作时，当导向装置由于补偿绳的跳动而被牵拉向上运动时，安全装置中的安全钳、提拉杆、联动轴和拉杆也随之向上运动。但由于定位板固定在固定装置上，因此不随之移动。在拉杆向上移动一定距离之后，限位件被定位板挡住，无法继续向上移动，使铰支在导向装置上的联动轴绕水平轴线摆转，进而通过提拉杆拉住安全钳，对导向装置产生刹车制动作用，避免发生意外，导致设备损坏。
 附图说明
图1是现有电梯的补偿装置立体结构示意图。
图2是本发明一个实施例的立体结构示意图。
图3是图2实施例中安全装置的立体结构示意图。
图中，1、导向装置，2、固定装置，3、行程开关架，4、限位撞弓架，5、配重砣块，6、安全装置，601、安全钳，602、提拉杆，603、联动轴，604、拉杆，605、定位板，606、固定座。
 本发明的实施方式
如图2和图3所示，本实施例的梯补偿装置，包括导向装置1、固定装置2、行程开关架3、限位撞弓架4、配重砣块5和安全装置6。固定装置2的两端朝上延伸出垂向导轨。导向装置1与固定装置2两端的导轨滑动衔接，构成移动副。导向装置1的两端分别外接轿厢和对重上的补偿绳。该补偿绳牵引导向装置1沿固定装置2的导轨上下运动。
行程开关架3有四个，分别安置在固定装置2两端导轨的上部和下部，其具体位置可以沿导轨上下调节。两只限位撞弓架4分别安装在导向装置1两端，并且位于上、下行程开关架3之间。该限位撞弓架4随导向装置1在竖直方向上下运动。
安全装置6包括安全钳601、提拉杆602、联动轴603、拉杆604和定位板605。其中安全钳601有两个，分别固定在导向装置1的两端，每个安全钳601的下端与提拉杆602的上端垂向约束连接，提拉杆602的下端与联动轴603的第一径向延伸臂垂向约束连接（其它方向具有一定间隙）。该联动轴603穿装在导向装置1的预留水平孔中，可以摆转，形成水平铰支结构。拉杆604的上端与联动轴603的第二径向延伸臂垂向约束连接，下端穿过定位板605的穿孔后，装有限位螺母。定位板605固定在固定装置2上。
该安全装置的工作原理是：当导向装置1由于补偿绳的跳动而向上运动时，安全钳601、提拉杆602、联动轴603和拉杆604也随之向上运动。但定位板605固定在固定装置2上，因此不能随之移动。当拉杆604向上移动一定距离之后（具体移动距离可以根据需要，通过限位螺母调节），限位螺母被定位板605挡住，拉杆604无法继续向上移动。此时拉杆604将通过第二径向延伸臂带动联动轴603在导向装置1摆转，进而通过第一径向延伸臂拉住与之相连的提拉杆602，提拉杆602又拉住安全钳601，使安全钳601对导向装置1产生相对于固定装置2的及时刹车作用，避免导向装置1冲出固定装置2产生故障。
本实施例中，安全装置6还包括固定座606，该固定座606固定连接在导向装置1上，提拉杆602穿过固定座606上的通孔。这样，可以使提拉杆602的运动受到固定座606通孔的导向约束，避免幅度过大，产生运动干涉。
本实施例进一步的完善是导向装置1中的两个张紧轮形成的平面与固定装置2所处平面相垂直（现有技术中导向装置中两个张紧轮形成的平面与固定装置所在平面处于同一平面）。这样一方面可以有效地节省了电梯井道底坑的空间，另一方面充分保证了整个补偿装置在前、后、左、右四个方向的受力强度均匀，避免局部受力强度不均，导致整个补偿装置的损坏。
本实施例更进一步的完善是配重砣块5位于导向装置1的两侧（现有技术中配重砣块放置在导向装置内部下侧）。这样可以方便操作人员根据电梯现场安装情况调节整个补偿装置的重量。
归纳起来，与现有技术相比，本实施例具有以下显著优点：
1. 当电梯补偿绳跳动幅度过大时，能够安全刹车，保护整个电梯设备的完好无损，提高电梯的安全性能。
2. 结构紧凑，有效地节省井道底坑空间，保证整个补偿装置受力均匀。现有技术中导向装置中两个张紧轮形成的平面与固定装置所在平面处于同一平面。而在本专利中，导向装置中两个张紧轮形成的平面与固定装置所在平面相垂直。这样一方面可以有效地节省了电梯井道底坑的空间，另一方面充分保证了整个补偿装置的受力强度均匀，避免局部受力强度不均，导致整个补偿装置的损坏。
3. 操作人员调节补偿装置的重量方便。
需要说明的是，上述实施例是非限制性的。除上述实施例外，本发明还可以有其他实施方式。例如，垂向约束可以采用钩挂、铰接等各种结构，再如，第一和第二径向延伸臂的长度可以按需设计成省力结构，等等。凡采用等同替换或等效变换形成的技术方案，均落在本实用新型要求的保护范围。

Claims (6)

  1. 一种电梯补偿装置，包括两端具有垂向导轨的固定装置、与所述垂向导轨构成移动副的导向装置、安置在固定装置上的上下行程开关架、安置在导向装置上且位于上下形成开关架之间的限位撞弓架；其特征在于：还含有由安全钳、提拉杆、联动轴、拉杆和定位板构成的安全装置；所述安全钳固定在导向装置上，下端通过提拉杆与水平铰支在导向装置上的联动轴第一径向延伸臂连接；所述联动轴的第二径向延伸臂与拉杆的上端连接，所述拉杆的下端穿过固定在固定装置上的定位板穿孔，且装有限位件。
  2. 根据权利要求1所述的电梯补偿装置，其特征在于：所述行程开关架有四个，分别安置在固定装置两端导轨的上部和下部；所述限位撞弓架有两只，分别安装在导向装置两端的上、下行程开关架之间。
  3. 根据权利要求1或2所述的电梯补偿装置，其特征在于：所述安全钳有两个，分别固定在导向装置的两端；每个安全钳的下端与提拉杆的上端垂向约束连接；所述提拉杆的下端与联动轴的第一径向延伸臂垂向约束连接。
  4. 根据权利要求3所述的电梯补偿装置，其特征在于：所述拉杆的上端与联动轴的第二径向延伸臂垂向约束连接，下端穿过定位板的穿孔后，装有限位螺母。
  5. 根据权利要求4所述的电梯补偿装置，其特征在于：所述导向装置中的两个张紧轮形成的平面与固定装置所处平面相垂直。
  6. 根据权利要求5所述的电梯补偿装置，其特征在于：所述补偿装置含有两个配重砣块，分别位于导向装置的两侧。
PCT/CN2011/072577 2010-08-23 2011-04-10 一种电梯补偿装置 WO2012024933A1 (zh)

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CN102367124A (zh) * 2011-06-28 2012-03-07 苏州新达电扶梯部件有限公司 一种限位撞弓架
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CN103723594A (zh) * 2013-12-20 2014-04-16 康力电梯股份有限公司 一种电梯的极限限位装置
CN103863917A (zh) * 2014-03-03 2014-06-18 西尼电梯(杭州)有限公司 电梯补偿绳涨紧防跳装置
CN104192676B (zh) * 2014-07-29 2016-11-09 河北东方富达机械有限公司 位置可调节并且具有避让空间的电梯垂直涨紧装置
CN104444708B (zh) * 2014-11-18 2017-01-11 怡达快速电梯有限公司 电梯补偿绳的随动张紧方法及随动张紧装置
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