WO2020211662A1 - Roller speed measuring apparatus - Google Patents
Roller speed measuring apparatus Download PDFInfo
- Publication number
- WO2020211662A1 WO2020211662A1 PCT/CN2020/083160 CN2020083160W WO2020211662A1 WO 2020211662 A1 WO2020211662 A1 WO 2020211662A1 CN 2020083160 W CN2020083160 W CN 2020083160W WO 2020211662 A1 WO2020211662 A1 WO 2020211662A1
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- WIPO (PCT)
- Prior art keywords
- roller
- guide rail
- speed measuring
- center
- rollers
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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Definitions
- the invention belongs to the technical field of elevator equipment, and specifically relates to a roller speed measuring device.
- the elevator speed limiter monitors and controls the speed of the car at any time. When an overspeed situation occurs, it can send out a signal in time, and then generate a mechanical action to cut off the power supply circuit or trigger other safety devices to brake the elevator car.
- One of the safety control components in the safety protection system One of the safety control components in the safety protection system.
- the working principle of the elevator speed limiter is to match the speed limiter with the same reference object of the car motion state, such as timing belt, wire rope, guide rail, etc., to drive the speed limiter to rotate to detect the motion state of the car.
- the existing speed limiter Synchronous belts and steel wire ropes are used for coordination.
- the speed limiter using synchronous belts and steel wire ropes will cause synchronous belts and long wire ropes, which is extremely inconvenient to install, and the synchronous belts or wire ropes will shake Affecting the car, the requirements for the tensioning device are also relatively high, and the guide rail is in a fixed state relative to the timing belt and the wire rope, and the stability is high. Therefore, the use of the roller speed limiter to replace the timing belt and the wire rope can greatly save installation costs. At the same time, the stability of the speed limiter's speed measurement is improved.
- the present invention provides a roller speed measuring device.
- a roller speed measuring device comprising at least two rollers matched with an elevator guide rail, a first roller and a second roller respectively, the first roller and the second roller are respectively located on both sides of the guide rail, the center of the first roller is to The distance of the guide rail is smaller than the radius of the first roller, the distance from the center of the second roller to the guide rail is smaller than the radius of the second roller, and at least one of the first roller and the second roller has a speed measuring structure.
- the center of the first roller and the center of the second roller are located on the same plane perpendicular to the guide rail.
- the center of the first roller and the center of the second roller are located on the same straight line perpendicular to the guide rail.
- the radius of the first roller and the radius of the second roller are the same.
- the distance from the center of the first roller to the side is equal to the distance from the center of the second roller to the side.
- the roller speed measuring device further includes a base and a swing connection part, the swing connection part is used to fixedly connect the first roller and the second roller, and the swing connection part is swingably connected to the base.
- the first roller has a mechanical and/or electronic speed measurement structure
- the second roller has a mechanical and/or electronic speed measurement structure
- first roller surface and the second roller surface are respectively provided with elastic rings.
- the present invention Compared with the prior art, the present invention has the following beneficial effects: the present invention uses the guide rail as the detection of the speed limit of the car operation, eliminating the need for steel wire ropes and timing belts. Cooperate without departing from the track, so that the speed measurement is more accurate, the synchronization is better, and the effectiveness of the elevator safety protection device is enhanced.
- Fig. 1 is a schematic diagram of the overall structure of a roller speed measuring device according to the first embodiment of the present invention
- the roller speed measuring device of this embodiment is used in the process of matching the roller speed governor with the elevator guide rail A to avoid the risk of derailment of the speed governor, including the first roller 1 and the first roller matching the elevator guide rail A.
- Two rollers 2, the first roller 1 and the second roller 2 are respectively located on both sides of the guide rail A, apply a certain pre-pressure to the first roller 1 and the second roller 2, so that the first roller 1 and the second roller 2 are always in contact with the guide rail A contact to avoid derailment, wherein at least one of the first roller 1 and the second roller 2 has a speed measuring structure.
- the first roller 1 and the second roller 2 are fixed on the car through the base 4 and the swing connecting portion 3 and respectively match the two side guide surfaces of the elevator guide rail A, so that the center of the first roller 1 reaches the first roller 1
- the distance between the guide surface on the side of the guide rail A is less than the radius of the first roller 1
- the distance from the center of the second roller 2 to the guide surface on the side A of the guide rail where the second roller is located is less than the radius of the second roller 2.
- the first roller 1 is on the elevator guide rail
- the second roller 2 has pre-pressure on the other side of elevator guide rail A. The directions of the two pre-pressures are opposite.
- the speed of the first roller and the second Roller 2 can be closely matched with guide rail A.
- a single roller speed governor has a rigid contact, and there will be a disengagement between the roller and guide rail A.
- the roller When the elevator car moves, the roller Cannot fit well with guide rail A, the speed is 0 or does not match the speed of the car movement; the center of the first roller 1 and the center of the second roller 2 are located on the same plane perpendicular to the guide rail A, and in the same straight line perpendicular to the guide rail A Above, at this time, the pre-pressure of the first roller 1 and the pre-pressure of the second roller 2 are opposite, and are located in the same straight line direction, and no resolution force in other directions is generated, and the structural stability is high.
- the swing connecting portion 3 is fixedly connected to the roller shafts of the first roller 1 and the second roller 2, and is swingably connected to the base 4 through the axle and other bearings, so that the first roller 1 and the second roller 2 can be fixed relative to the base 4
- the swing movement of the stroke leaves a buffer space for the shaking during the movement of the car; preferably, an elastic member is added between the swing connection 3 and the base 4 to reset the swing movement of the swing connection 3.
- the first roller 1 and the second roller 2 use rollers with the same radius to facilitate the synchronization of the speed of the two rollers, reducing the complexity of structure, setting and debugging and maintenance; the distance from the center of the first roller 1 to the side and the distance from the center of the second roller 2 to the side
- the distance between the two rollers is equal, and the installation accuracy is easy to control.
- the interaction force of the two pre-pressures tends to be balanced, which facilitates the synchronization of the loss of the two rollers, and facilitates later debugging and maintenance.
- the difference between the distance between the center of the first roller 1 and the guide rail A and the radius of the first roller 1 is less than 2cm, and the difference between the distance between the center of the second roller 2 and the guide rail A and the radius of the second roller 2 Less than 2cm, after long-term test and debugging, the loss of the rollers in the process of matching with the guide rail A within this difference range is small, and the pre-pressure generated at the same time can make the two rollers and the guide rail A effectively cooperate.
- the difference between the distance between the center of the first roller 1 and the guide rail A and the radius of the first roller 1 is 0.5 cm
- the difference between the distance between the center of the second roller 2 and the guide rail A and the radius of the second roller 2 is 0.5 cm. It is convenient to install the roller speed measuring device, and the installation accuracy is easy to control. The loss of the roller and the guide rail A is small, and the pre-pressure generated at the same time can make the two rollers and the guide rail A effectively cooperate; due to the different characteristics of different roller materials, the actual The difference distance can be adjusted according to the material of the roller.
- the first roller 1 has a mechanical speed measurement structure such as a centrifugal mechanism to cooperate with a trigger mechanism
- the second roller 2 has an electronic speed measurement structure such as an encoder and a trigger mechanism for measuring the rotation speed of the roller.
- the two roller speed limiter trigger mechanisms are linked and connected for lifting
- the device or braking device adopts redundant design to detect the running status of the elevator car.
- the surface of the first roller and the surface of the second roller are respectively provided with elastic rings, and the material can be rubber, silica gel, etc., to reduce friction loss when the roller is matched with the guide rail A.
- the center of the roller refers to the center of the surface of the roller where the center point of the contact surface of the roller matches the guide rail A. If the first roller surface and the second roller surface are respectively provided with elastic rings, the radius of the first roller 1 and the radius of the second roller 2 include the thickness of the elastic ring.
- the roller speed measuring device of the utility model is equipped with two rollers on both sides of the elevator guide rail A and applies a certain pre-pressure, so that the rollers always fit with the guide rail A without leaving the track, effectively avoiding the rollers from disengaging from the elevator guide rail A.
- the rollers have Speed measurement structure, the speed measurement is more accurate, the synchronization is better, and the redundant design is adopted to enhance the effectiveness of the elevator safety protection device.
- the center of the first roller and the center of the second roller are located on the same plane perpendicular to the guide rail instead of on the same straight line.
- the center of the first roller and the center of the second roller can be staggered back and forth at the same height of the guide rail, and the corresponding structure can be selected according to the site installation conditions.
- the center of the first roller and the center of the second roller are not located on the same plane perpendicular to the guide rail.
- the center of the first roller and the center of the second roller can be staggered at different heights of the guide rail, and the corresponding structure can be selected according to the site installation conditions.
- the radius of the first roller is different from the radius of the second roller. Different roller radii limit the speed of the rollers according to the actual car speed limit requirements. Compared with the first embodiment, the corresponding structure is selected according to the site installation conditions.
- the distance from the center of the first roller to the side surface is not equal to the distance from the center of the second roller to the side surface, and the distance is adapted according to the actual roller material. Compared with the first embodiment, the distance from the center of each roller to the side surface is not limited.
- Embodiment 6 is a diagrammatic representation of Embodiment 6
- the base and the swing connection part can be omitted, and the first roller and the second roller can be directly fixed on the car through the mounting frame. Compared with the first embodiment, the structure is simplified.
- the first roller There is an electronic speed measuring structure in the first roller, and a mechanical speed measuring structure in the second roller; or there is no speed measuring structure in the first roller; or there is no speed measuring structure in the second roller; or the combination of the speed measuring structures in the two rollers can be dual mechanical , Dual electronic type, etc.; or the first roller also has an electronic speed measurement structure, and the second roller also has a mechanical speed measurement structure.
- the specific structure and combination of the first roller speed measurement structure and the second roller speed measurement structure are not limited.
- Embodiment 8 is a diagrammatic representation of Embodiment 8
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- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
A roller speed measuring apparatus, comprising at least two rollers matching an elevator guide rail (A), the rollers being respectively a first roller (1) and a second roller (2). The first roller (1) and the second roller (2) are located on two sides of the guide rail (A), respectively; a distance from the circle center of the first roller (1) to the guide rail (A) is smaller than the radius of the first roller (1); a distance from the circle center of the second roller (2) to the guide rail (A) is smaller than the radius of the second roller (2); at least one of the first roller (1) and the second roller (2) is provided with a speed measuring structure. According to the roller speed measuring apparatus, the two rollers are provided on the two sides of the elevator guide rail and a certain pre-pressure is applied; the rollers always match the guide rail without being separated from the guide rail, the rollers are effectively prevented from being separated from the elevator guide rail, a speed measuring structure is provided in the rollers, speed measurement is more accurate, synchronism is better, and effectiveness of an elevator safety protection apparatus is enhanced.
Description
本发明属于电梯设备技术领域,具体涉及一种滚轮测速装置。The invention belongs to the technical field of elevator equipment, and specifically relates to a roller speed measuring device.
电梯限速器,它随时监测控制着轿厢的速度,当出现超速度情况时,能及时发出信号,继而产生机械动作切断供电电路或触发其他安全装置,对电梯轿厢进行制动,是电梯安全保护***中的安全控制部件之一。The elevator speed limiter monitors and controls the speed of the car at any time. When an overspeed situation occurs, it can send out a signal in time, and then generate a mechanical action to cut off the power supply circuit or trigger other safety devices to brake the elevator car. One of the safety control components in the safety protection system.
电梯限速器工作原理是通过限速器与轿厢运动状态相同的参照物相配,比如同步带、钢丝绳、导轨等,来带动限速器转动从而检测轿厢的运动状态,现有的限速器采用同步带、钢丝绳的配合较多,但是在随着电梯楼层的不断提升,采用同步带、钢丝绳的限速器会出现同步带、钢丝绳过长,安装极其不便,并且同步带或钢丝绳会晃动影响轿厢,对涨紧装置的要求也比较高,而导轨相对同步带和钢丝绳,导轨处于固定状态,稳定性高,因而配合滚轮限速器代替同步带、钢丝绳能够极大的节约安装成本,同时限速器测速的稳定性提高。The working principle of the elevator speed limiter is to match the speed limiter with the same reference object of the car motion state, such as timing belt, wire rope, guide rail, etc., to drive the speed limiter to rotate to detect the motion state of the car. The existing speed limiter Synchronous belts and steel wire ropes are used for coordination. However, with the continuous improvement of elevator floors, the speed limiter using synchronous belts and steel wire ropes will cause synchronous belts and long wire ropes, which is extremely inconvenient to install, and the synchronous belts or wire ropes will shake Affecting the car, the requirements for the tensioning device are also relatively high, and the guide rail is in a fixed state relative to the timing belt and the wire rope, and the stability is high. Therefore, the use of the roller speed limiter to replace the timing belt and the wire rope can greatly save installation costs. At the same time, the stability of the speed limiter's speed measurement is improved.
针对以上技术问题,提出一种新型的滚轮测速装置。Aiming at the above technical problems, a new type of roller speed measuring device is proposed.
发明内容Summary of the invention
基于现有技术中存在的上述不足,本发明提供一种滚轮测速装置。Based on the above-mentioned shortcomings in the prior art, the present invention provides a roller speed measuring device.
为了达到上述发明目的,本发明采用以下技术方案:In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:
一种滚轮测速装置,包括与电梯导轨相配的至少两个滚轮,分别为第一滚轮和第二滚轮,所述第一滚轮和第二滚轮分别位于导轨的两侧,所述第一滚轮圆心到导轨的距离小于第一滚轮半径,所述第二滚轮圆心到导轨的距离小于第 二滚轮半径,所述第一滚轮和第二滚轮中至少有一个滚轮具有测速结构。A roller speed measuring device, comprising at least two rollers matched with an elevator guide rail, a first roller and a second roller respectively, the first roller and the second roller are respectively located on both sides of the guide rail, the center of the first roller is to The distance of the guide rail is smaller than the radius of the first roller, the distance from the center of the second roller to the guide rail is smaller than the radius of the second roller, and at least one of the first roller and the second roller has a speed measuring structure.
作为优选方案,所述第一滚轮圆心和第二滚轮圆心位于垂直于导轨的同一平面上。As a preferred solution, the center of the first roller and the center of the second roller are located on the same plane perpendicular to the guide rail.
作为优选方案,所述第一滚轮圆心和第二滚轮圆心位于垂直于导轨的同一直线上。As a preferred solution, the center of the first roller and the center of the second roller are located on the same straight line perpendicular to the guide rail.
作为优选方案,所述第一滚轮半径与第二滚轮半径相同。As a preferred solution, the radius of the first roller and the radius of the second roller are the same.
作为优选方案,所述第一滚轮圆心到侧面的距离等于第二滚轮圆心到侧面的距离。As a preferred solution, the distance from the center of the first roller to the side is equal to the distance from the center of the second roller to the side.
作为优选方案,所述滚轮测速装置还包括基座及摆动连接部,所述摆动连接部用于固定连接第一滚轮和第二滚轮,所述摆动连接部摆动式连接于所述基座。As a preferred solution, the roller speed measuring device further includes a base and a swing connection part, the swing connection part is used to fixedly connect the first roller and the second roller, and the swing connection part is swingably connected to the base.
作为优选方案,所述第一滚轮具有机械和/或电子测速结构,所述第二滚轮具有机械和/或电子测速结构。As a preferred solution, the first roller has a mechanical and/or electronic speed measurement structure, and the second roller has a mechanical and/or electronic speed measurement structure.
作为优选方案,其特征在于,所述第一滚轮表面和第二滚轮表面分别设有弹性圈。As a preferred solution, it is characterized in that the first roller surface and the second roller surface are respectively provided with elastic rings.
本发明与现有技术相比,有益效果是:本发明通过导轨作为轿厢运行限速的检测,省去钢丝绳、同步带,测速装置设置两个滚轮于电梯导轨两侧,使滚轮始终与导轨配合而不脱离轨道,使速度测量更准确,同步性更好,增强电梯安全保护装置的有效性。Compared with the prior art, the present invention has the following beneficial effects: the present invention uses the guide rail as the detection of the speed limit of the car operation, eliminating the need for steel wire ropes and timing belts. Cooperate without departing from the track, so that the speed measurement is more accurate, the synchronization is better, and the effectiveness of the elevator safety protection device is enhanced.
图1是本发明实施例一的滚轮测速装置的整体结构示意图;Fig. 1 is a schematic diagram of the overall structure of a roller speed measuring device according to the first embodiment of the present invention;
图2是本发明实施例一的滚轮测速装置的基座及摆动连接部示意图。2 is a schematic diagram of the base and the swing connection part of the roller speed measuring device according to the first embodiment of the present invention.
其中:A.导轨;1.第一滚轮;2.第二滚轮;3.摆动连接部;4.基座。Among them: A. Guide rail; 1. First roller; 2. Second roller; 3. Swing connection part; 4. Base.
为了更清楚地说明本发明实施例,下面将对照附图说明本发明的具体实施方式。显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,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,并获得其他的实施方式。In order to explain the embodiments of the present invention more clearly, the specific embodiments of the present invention will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings and obtained Other embodiments.
实施例一:Example one:
如图1-2所示,本实施例的滚轮测速装置用于滚轮限速器与电梯导轨A相配过程中,避免限速器脱轨的风险,包括与电梯导轨A相配的第一滚轮1和第二滚轮2,第一滚轮1和第二滚轮2分别位于导轨A的两侧,对第一滚轮1和第二滚轮2施加一定的预压力,使第一滚轮1和第二滚轮2始终与导轨A接触,避免脱轨,其中第一滚轮1和第二滚轮2中至少有一个具有测速结构。As shown in Figure 1-2, the roller speed measuring device of this embodiment is used in the process of matching the roller speed governor with the elevator guide rail A to avoid the risk of derailment of the speed governor, including the first roller 1 and the first roller matching the elevator guide rail A. Two rollers 2, the first roller 1 and the second roller 2 are respectively located on both sides of the guide rail A, apply a certain pre-pressure to the first roller 1 and the second roller 2, so that the first roller 1 and the second roller 2 are always in contact with the guide rail A contact to avoid derailment, wherein at least one of the first roller 1 and the second roller 2 has a speed measuring structure.
具体的,第一滚轮1和第二滚轮2通过基座4及摆动连接部3固定在轿厢上并分别和电梯导轨A的两个侧导向面相配,使第一滚轮1圆心到第一滚轮1所在导轨A侧导向面的距离小于第一滚轮1半径,第二滚轮2圆心到第二滚轮所在导轨A侧导向面的距离小于第二滚轮2半径,此时,第一滚轮1对电梯导轨A的一侧存在预压力,第二滚轮2对电梯导轨A的另一侧存在预压力,两个预压力的方向相反,在两个相反的预压力作用下,第一滚轮限速和第二滚轮2都能够与导轨A紧密的配合,相比单个滚轮限速器配合导轨A,单个滚轮限速器配合存在刚性接触,会出现滚轮与导轨A之间脱离配合,电梯轿厢运动时,滚轮无法与导轨A很好配合,转速为0或与轿厢运动速度不匹配;第一滚轮1圆心和第二滚轮2圆心位于垂直于导轨A的同一平面上,且位于垂直于导轨A的同一直线上,此时第一滚轮1的预压力与第二滚轮2的预压力相对,位于同一直线方向上,没有其他方向的分解力产生,结构稳定性高。摆动连接部3固定连接第一滚轮1和第二滚轮2的滚轮轴,并通过轮轴等轴承件摆动式连接 于基座4,使第一滚轮1和第二滚轮2相对基座4能做一定行程的摆动运动,为轿厢运动过程中的晃动留有缓冲空间;优选的,在摆动连接部3和基座4之间增设弹性件,可以对摆动连接部3的摆动动作复位。Specifically, the first roller 1 and the second roller 2 are fixed on the car through the base 4 and the swing connecting portion 3 and respectively match the two side guide surfaces of the elevator guide rail A, so that the center of the first roller 1 reaches the first roller 1 The distance between the guide surface on the side of the guide rail A is less than the radius of the first roller 1, and the distance from the center of the second roller 2 to the guide surface on the side A of the guide rail where the second roller is located is less than the radius of the second roller 2. At this time, the first roller 1 is on the elevator guide rail There is pre-pressure on one side of A, and the second roller 2 has pre-pressure on the other side of elevator guide rail A. The directions of the two pre-pressures are opposite. Under the action of two opposite pre-pressures, the speed of the first roller and the second Roller 2 can be closely matched with guide rail A. Compared with a single roller speed governor with guide rail A, a single roller speed governor has a rigid contact, and there will be a disengagement between the roller and guide rail A. When the elevator car moves, the roller Cannot fit well with guide rail A, the speed is 0 or does not match the speed of the car movement; the center of the first roller 1 and the center of the second roller 2 are located on the same plane perpendicular to the guide rail A, and in the same straight line perpendicular to the guide rail A Above, at this time, the pre-pressure of the first roller 1 and the pre-pressure of the second roller 2 are opposite, and are located in the same straight line direction, and no resolution force in other directions is generated, and the structural stability is high. The swing connecting portion 3 is fixedly connected to the roller shafts of the first roller 1 and the second roller 2, and is swingably connected to the base 4 through the axle and other bearings, so that the first roller 1 and the second roller 2 can be fixed relative to the base 4 The swing movement of the stroke leaves a buffer space for the shaking during the movement of the car; preferably, an elastic member is added between the swing connection 3 and the base 4 to reset the swing movement of the swing connection 3.
第一滚轮1和第二滚轮2选用相同半径的滚轮,便于两个滚轮转速同步,降低结构、设置及调试维护的复杂度;第一滚轮1圆心到侧面的距离与第二滚轮2圆心到侧面的距离相等,安装精度便于控制,同时两个预压力的相互作用力趋于平衡,利于两个滚轮损耗趋于同步,便于后期的调试维护。选用常规材质的滚轮,如不锈钢滚轮时,第一滚轮1圆心到导轨A的距离与第一滚轮1半径差值小于2cm,第二滚轮2圆心到导轨A的距离与第二滚轮2半径差值小于2cm,经长期的试验调试,此差值范围内滚轮的与导轨A配合过程中损耗较小,同时产生的预压力大小能够使两个滚轮与导轨A有效配合。优选的,第一滚轮1圆心到导轨A的距离与第一滚轮1半径差值为0.5cm,第二滚轮2圆心到导轨A的距离与第二滚轮2半径差值为0.5cm,此差值便于滚轮测速装置的安装,安装精度便于控制,滚轮的与导轨A配合过程中损耗较小,同时产生的预压力大小能够使两个滚轮与导轨A有效配合;由于不同滚轮材质的特性不同,实际差值距离可根据滚轮材质调整。The first roller 1 and the second roller 2 use rollers with the same radius to facilitate the synchronization of the speed of the two rollers, reducing the complexity of structure, setting and debugging and maintenance; the distance from the center of the first roller 1 to the side and the distance from the center of the second roller 2 to the side The distance between the two rollers is equal, and the installation accuracy is easy to control. At the same time, the interaction force of the two pre-pressures tends to be balanced, which facilitates the synchronization of the loss of the two rollers, and facilitates later debugging and maintenance. When using conventional rollers, such as stainless steel rollers, the difference between the distance between the center of the first roller 1 and the guide rail A and the radius of the first roller 1 is less than 2cm, and the difference between the distance between the center of the second roller 2 and the guide rail A and the radius of the second roller 2 Less than 2cm, after long-term test and debugging, the loss of the rollers in the process of matching with the guide rail A within this difference range is small, and the pre-pressure generated at the same time can make the two rollers and the guide rail A effectively cooperate. Preferably, the difference between the distance between the center of the first roller 1 and the guide rail A and the radius of the first roller 1 is 0.5 cm, and the difference between the distance between the center of the second roller 2 and the guide rail A and the radius of the second roller 2 is 0.5 cm. It is convenient to install the roller speed measuring device, and the installation accuracy is easy to control. The loss of the roller and the guide rail A is small, and the pre-pressure generated at the same time can make the two rollers and the guide rail A effectively cooperate; due to the different characteristics of different roller materials, the actual The difference distance can be adjusted according to the material of the roller.
第一滚轮1内具有机械测速结构比如离心机构配合触发机构,第二滚轮2内具有电子测速结构比如用于测量滚轮转速的编码器及触发机构,两个滚轮限速器触发机构联动连接提拉装置或制动装置,采用冗余式设计,检测电梯轿厢运行状态。优选的,第一滚轮表面和第二滚轮表面分别设有弹性圈,材质可以选用橡胶,硅胶等,减小滚轮与导轨A配合时的摩擦损耗。The first roller 1 has a mechanical speed measurement structure such as a centrifugal mechanism to cooperate with a trigger mechanism, and the second roller 2 has an electronic speed measurement structure such as an encoder and a trigger mechanism for measuring the rotation speed of the roller. The two roller speed limiter trigger mechanisms are linked and connected for lifting The device or braking device adopts redundant design to detect the running status of the elevator car. Preferably, the surface of the first roller and the surface of the second roller are respectively provided with elastic rings, and the material can be rubber, silica gel, etc., to reduce friction loss when the roller is matched with the guide rail A.
需要说明的是,由于滚轮存在轮宽厚度,本申请中,滚轮圆心指滚轮与导轨A相配的接触面中心点所在的滚轮的面的圆心。若第一滚轮表面和第二滚轮表面分别设有弹性圈,则第一滚轮1半径和第二滚轮2半径包括弹性圈厚度。It should be noted that because the roller has a wheel width and thickness, in this application, the center of the roller refers to the center of the surface of the roller where the center point of the contact surface of the roller matches the guide rail A. If the first roller surface and the second roller surface are respectively provided with elastic rings, the radius of the first roller 1 and the radius of the second roller 2 include the thickness of the elastic ring.
本实用新型的滚轮测速装置设置两个滚轮于电梯导轨A两侧并施加一定 的预压力,使滚轮始终与导轨A配合而不脱离轨道,有效避免滚轮脱离与电梯导轨A的配合,滚轮中具有测速结构,速度测量更准确,同步性更好,采用冗余式设计,增强电梯安全保护装置的有效性。The roller speed measuring device of the utility model is equipped with two rollers on both sides of the elevator guide rail A and applies a certain pre-pressure, so that the rollers always fit with the guide rail A without leaving the track, effectively avoiding the rollers from disengaging from the elevator guide rail A. The rollers have Speed measurement structure, the speed measurement is more accurate, the synchronization is better, and the redundant design is adopted to enhance the effectiveness of the elevator safety protection device.
实施例二:Embodiment two:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮圆心和第二滚轮圆心位于垂直于导轨的同一平面而不位于同一直线上。相比实施例一,第一滚轮圆心和第二滚轮圆心在导轨同一高度处可以前后错位设置,根据现场安装条件选择相应结构。The center of the first roller and the center of the second roller are located on the same plane perpendicular to the guide rail instead of on the same straight line. Compared with the first embodiment, the center of the first roller and the center of the second roller can be staggered back and forth at the same height of the guide rail, and the corresponding structure can be selected according to the site installation conditions.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例三:Example three:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮圆心和第二滚轮圆心不位于垂直于导轨的同一平面。相比实施例一,第一滚轮圆心和第二滚轮圆心可以在导轨不同高度处错位设置,根据现场安装条件选择相应结构。The center of the first roller and the center of the second roller are not located on the same plane perpendicular to the guide rail. Compared with the first embodiment, the center of the first roller and the center of the second roller can be staggered at different heights of the guide rail, and the corresponding structure can be selected according to the site installation conditions.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例四:Embodiment four:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮半径与第二滚轮半径不同,不同滚轮半径根据实际轿厢限速要求对滚轮转速分别限制,相比实施例一,根据现场安装条件选择相应结构。The radius of the first roller is different from the radius of the second roller. Different roller radii limit the speed of the rollers according to the actual car speed limit requirements. Compared with the first embodiment, the corresponding structure is selected according to the site installation conditions.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例五:Embodiment five:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮圆心到侧面的距离不等于第二滚轮圆心到侧面的距离,距离根据实际滚轮材料进行适配。相比实施例一,不限定各滚轮圆心到侧面的距离。The distance from the center of the first roller to the side surface is not equal to the distance from the center of the second roller to the side surface, and the distance is adapted according to the actual roller material. Compared with the first embodiment, the distance from the center of each roller to the side surface is not limited.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例六:Embodiment 6:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
基座及摆动连接部可以省略,将第一滚轮和第二滚轮直接通过安装架固定在轿厢上即可。相比实施例一,简化结构。The base and the swing connection part can be omitted, and the first roller and the second roller can be directly fixed on the car through the mounting frame. Compared with the first embodiment, the structure is simplified.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例七:Embodiment Seven:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮内具有电子测速结构,第二滚轮内具有机械测速结构;或第一滚轮内没有测速结构;或第二滚轮内没有测速结构;或两个滚轮内测速结构组合方式可以为双机械式、双电子式等;或第一滚轮内还具有电子测速结构,第二滚轮内还具有机械测速结构。相比实施例一,不限定第一滚轮测速结构和第二滚轮测速结构的具体结构及组合方式。There is an electronic speed measuring structure in the first roller, and a mechanical speed measuring structure in the second roller; or there is no speed measuring structure in the first roller; or there is no speed measuring structure in the second roller; or the combination of the speed measuring structures in the two rollers can be dual mechanical , Dual electronic type, etc.; or the first roller also has an electronic speed measurement structure, and the second roller also has a mechanical speed measurement structure. Compared with the first embodiment, the specific structure and combination of the first roller speed measurement structure and the second roller speed measurement structure are not limited.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
实施例八:Embodiment 8:
本实施例与实施例一的滚轮测速装置的不同之处在于:The difference between the roller speed measuring device of this embodiment and the first embodiment is:
第一滚轮侧和/或第二滚轮侧还可以增加多个滚轮,多个滚轮中的滚轮可以具有限速机构作为备用,或设置多级限速。相比实施例一,不限定滚轮的数量,多个滚轮设置具有备用或多级限速的功能。A plurality of rollers may be added to the first roller side and/or the second roller side, and the rollers of the plurality of rollers may have a speed limit mechanism as a backup, or set a multi-level speed limit. Compared with the first embodiment, the number of rollers is not limited, and multiple rollers are set to have the function of backup or multi-level speed limit.
其他结构参考实施例一。Refer to Embodiment 1 for other structures.
应当说明的是,上述实施例均可根据需要自由组合。以上所述仅是对本发明的优选实施例及原理进行了详细说明,对本领域的普通技术人员而言,依据本发明提供的思想,在具体实施方式上会有改变之处,而这些改变也应视为本发明的保护范围。It should be noted that the above embodiments can be freely combined as required. The above is only a detailed description of the preferred embodiments and principles of the present invention. For those of ordinary skill in the art, according to the ideas provided by the present invention, there will be changes in specific implementations, and these changes should also It is regarded as the protection scope of the present invention.
Claims (7)
- 一种滚轮测速装置,其特征在于,包括与电梯导轨相配的至少两个滚轮,分别为第一滚轮和第二滚轮,所述第一滚轮和第二滚轮分别位于导轨的两侧,所述第一滚轮圆心到导轨的距离小于第一滚轮半径,所述第二滚轮圆心到导轨的距离小于第二滚轮半径,所述第一滚轮和第二滚轮中至少有一个滚轮具有测速结构。A roller speed measuring device, which is characterized in that it comprises at least two rollers matched with an elevator guide rail, a first roller and a second roller respectively, the first roller and the second roller are respectively located on both sides of the guide rail, and the first roller The distance from the center of a roller to the guide rail is less than the radius of the first roller, the distance from the center of the second roller to the guide rail is less than the radius of the second roller, and at least one of the first roller and the second roller has a speed measuring structure.
- 如权利要求1所述的一种滚轮测速装置,其特征在于,所述第一滚轮圆心和第二滚轮圆心位于垂直于导轨的同一平面上。The roller speed measuring device according to claim 1, wherein the center of the first roller and the center of the second roller are located on the same plane perpendicular to the guide rail.
- 如权利要求2所述的一种滚轮测速装置,其特征在于,所述第一滚轮圆心和第二滚轮圆心位于垂直于导轨的同一直线上。The roller speed measuring device according to claim 2, wherein the center of the first roller and the center of the second roller are located on the same straight line perpendicular to the guide rail.
- 如权利要求3所述的一种滚轮测速装置,其特征在于,所述第一滚轮半径与第二滚轮半径相同。A roller speed measuring device according to claim 3, wherein the radius of the first roller is the same as the radius of the second roller.
- 如权利要求4所述的一种滚轮测速装置,其特征在于,所述第一滚轮圆心到侧面的距离等于第二滚轮圆心到侧面的距离。A roller speed measuring device according to claim 4, wherein the distance from the center of the first roller to the side is equal to the distance from the center of the second roller to the side.
- 如权利要求5所述的一种滚轮测速装置,其特征在于,所述滚轮测速装置还包括基座及摆动连接部,所述摆动连接部用于固定连接第一滚轮和第二滚轮,所述摆动连接部摆动式连接于所述基座。A roller speed measuring device according to claim 5, characterized in that, the roller speed measuring device further comprises a base and a swing connection part, the swing connection part is used to fixedly connect the first roller and the second roller, the The swing connection part is swing-connected to the base.
- 如权利要求1-6任一项所述的一种滚轮测速装置,其特征在于,所述第一滚轮具有机械和/或电子测速结构,所述第二滚轮具有机械和/或电子测速结构。The rolling wheel speed measuring device according to any one of claims 1 to 6, wherein the first rolling wheel has a mechanical and/or electronic speed measuring structure, and the second rolling wheel has a mechanical and/or electronic speed measuring structure.
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EP3130554B1 (en) * | 2015-08-13 | 2021-11-24 | KONE Corporation | An elevator |
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JP2002020054A (en) * | 2000-06-21 | 2002-01-23 | Otis Elevator Co | Variable traction mechanism |
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