CN106744118B - Elevator car door leaf opening force testing machine - Google Patents
Elevator car door leaf opening force testing machine Download PDFInfo
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- CN106744118B CN106744118B CN201710004848.5A CN201710004848A CN106744118B CN 106744118 B CN106744118 B CN 106744118B CN 201710004848 A CN201710004848 A CN 201710004848A CN 106744118 B CN106744118 B CN 106744118B
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- box body
- long box
- positive
- door leaf
- elevator car
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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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
Abstract
The invention discloses an elevator car door leaf opening force testing machine which comprises a long box body which is transversely placed, wherein a positive and negative tooth screw rod is arranged in the long box body along the length direction of the long box body, two ends of the positive and negative tooth screw rod are respectively and rotatably connected to two end parts of the long box body, and one end of the positive and negative tooth screw rod extends out of the end part of the long box body and is connected with a driving device; the positive and negative thread screw rod positioned in the long box body comprises two sections of thread structures, the thread turning directions of each section of thread structure are opposite, each section of thread structure is sleeved with a sliding block, one side part of the sliding block extends out of the rear side of the long box body and is connected with a sucking disc, and the two sucking discs respectively correspond to a door leaf of the elevator car; the device also comprises a controller, a displacement sensor for monitoring the relative movement distance of the two suckers and a force sensor for monitoring the stress of the suckers, wherein the displacement sensor, the force sensor and the driving device are all connected with the controller; the opening force of the elevator car door leaf can be tested quickly and accurately.
Description
Technical Field
The invention relates to the technical field of elevator auxiliary devices, in particular to an elevator car door leaf opening force testing machine.
Background
The elevator is a common tool in daily life of people, provides a convenient, quick and labor-saving channel for people to go upstairs and downstairs, but the safety problem of the elevator is an inevitable topic all the time. In the whole elevator system, the door motor system has the highest use rate and therefore has the highest requirement on the stability of the door motor system, and the door motor system has the highest failure rate in the whole elevator system. Therefore, each elevator manufacturer must perform rigorous testing on the door motor system after it is produced.
At present, the opening of an elevator door with the national standard of 100 kilograms of force is required to be less than 5 centimeters, and if the force exceeds 5 centimeters, the elevator door is unqualified, so that a device for testing the opening force is urgently needed.
Disclosure of Invention
The invention aims to provide an elevator car door leaf opening force testing machine which can test the elevator car door leaf opening force quickly and accurately.
In order to achieve the purpose, the invention adopts the following technical scheme:
the elevator car door leaf opening force testing machine comprises a long box body which is transversely placed, wherein a positive and negative threaded screw is arranged in the long box body along the length direction of the long box body, two ends of the positive and negative threaded screw are respectively and rotatably connected to two end parts of the long box body, and one end of the positive and negative threaded screw extends out of the end part of the long box body and is connected with a driving device; the positive and negative thread screw rod positioned in the long box body comprises two sections of thread structures, the thread turning directions of the thread structures are opposite, a sliding block is sleeved on each section of thread structure, one side part of the sliding block extends out of the rear side of the long box body and is connected with a sucking disc, and the two sucking discs respectively correspond to a door leaf of an elevator car;
the sucker force sensor is used for monitoring the distance between the sucker and the sucker, the controller is further included, the displacement sensor is used for monitoring the distance between the sucker and the sucker, the force sensor is used for monitoring the stress of the sucker, and the displacement sensor, the force sensor and the driving device are all connected with the controller.
Preferably, the slider comprises a slider body matched with the thread structure and a connecting piece used for connecting the sucker, the connecting piece comprises a connecting piece body sleeved on the slider body and a connecting part arranged at the rear side part of the connecting piece body, a vertical groove is arranged at the rear side of the connecting part,
the back of the sucker is provided with a vertical connecting bulge, and the connecting bulge is clamped into the groove to be fixed.
Preferably, the connecting protrusion is connected with the groove through a screw.
Preferably, the long box body comprises a bottom plate, and the bottom of the bottom plate is connected with a vertically-arranged and vertically-telescopic supporting rod.
Preferably, the long box body further comprises a first end side plate and a second end side plate which are arranged at the two ends of the bottom plate and protrude upwards, one end of the positive and negative tooth screw rod is rotatably connected to the first end side plate and extends out of the first end side plate to be connected with the driving device, and the other end of the positive and negative tooth screw rod is rotatably connected to the second end side plate.
Preferably, bearings are arranged between the positive and negative tooth screw rods and the first end side plate and between the positive and negative tooth screw rods and the second end side plate respectively.
Preferably, the long box body further comprises a front side plate which is arranged on the front side of the bottom plate and protrudes upwards, and two ends of the front side plate are respectively connected with the first end side plate and the second end side plate.
Preferably, the displacement sensor comprises a strip-shaped body and a sliding rod sleeved in the body, the front end of the sliding rod is connected to the top end of one sliding block, the middle section of the body is connected to the top end of the other sliding block, and when the two sliding blocks move in opposite directions, the sliding rod is driven to stretch into or stretch out of the body.
Preferably, the force sensor is disposed at a side portion of the slider.
Preferably, a limit ring is arranged between the two sections of the thread structures of the screw with the positive and negative teeth.
The elevator car door leaf opening force testing machine provided by the invention has the advantages that during testing, the long box body is placed along the width direction of the two door leaves of an elevator car, so that the two suckers respectively correspond to the two door leaves and adsorb the corresponding door leaves, the controller controls the driving device to act, the driving device drives the positive and negative threaded rods to rotate, at the moment, the two sections of thread structures on the long box body are opposite in direction, one section of thread structure is always in positive rotation, the other section of thread structure is in reverse rotation, therefore, when the two sections of thread structures move oppositely, the thread structure drives the corresponding sliding block to move along the axial direction of the positive and negative threaded rods, the two sliding blocks also move oppositely, and the corresponding two suckers also move oppositely, therefore, the door leaf is driven to move towards the opening trend, in the process, the displacement sensor monitors the opening distance of the door leaf in real time, the force sensor detects the force used for opening the door leaf, when the force sensor 10 detects that the force is 100 kilograms of force, the force sensor 10 sends a signal to the controller, the controller controls the driving device 6 to stop driving, the positive and negative threaded rods 7 stop rotating, the sliding blocks 12 stop moving, the sucking discs 8 stop moving, and the door leaf stops moving, at the moment, the displacement sensor 9 sends a measured displacement signal to the control device, and the displacement signal is sent to an external display device by the control device, so that the opening force of the door leaf of the elevator car can be quickly and accurately tested, and the opening force of the door leaf of the elevator car is ensured to meet the national standard; after the test is finished, the control device controls the driving device to act to drive the positive and negative screw rods to rotate reversely, so that the two slide blocks are driven to move oppositely to return through the two sections of thread structures, and finally the two suckers are driven to return.
Drawings
Fig. 1 is a schematic structural view of an elevator car door opening force tester according to embodiment 1 of the present invention.
In the figure: 1-a support bar; 2-a bottom plate; 3-a first end side plate; 4-a second end side plate; 5-front side plate; 6-a drive device; 7-positive and negative tooth screw; 8, a sucker; 9-a displacement sensor; 10-a force sensor; 11-a clamping jaw; 12-a slide block; 13-base.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Fig. 1 is a schematic structural view of an elevator car door opening force tester according to embodiment 1 of the present invention. Referring to fig. 1, the elevator car door leaf opening force testing machine comprises a long box body which is transversely placed, wherein a positive and negative tooth screw 7 is arranged in the long box body along the length direction of the long box body, two ends of the positive and negative tooth screw 7 are respectively and rotatably connected to two end parts of the long box body, and one end of the positive and negative tooth screw 7 extends out of the end part of the long box body and is connected with a driving device 6; the positive and negative tooth screw 7 in the long box body comprises two sections of thread structures, each section of thread structure is opposite in thread turning direction, each section of thread structure is sleeved with a sliding block 12, one side part of the sliding block 12 extends out of the rear side of the long box body and is connected with a sucking disc 8, and the sucking discs 8 correspond to door leaves of the elevator car respectively.
The elevator car door leaf opening force testing machine further comprises a controller, a displacement sensor 9 and a force sensor 10, wherein the displacement sensor 9 is used for monitoring the relative movement distance of the two suckers 8, the force sensor 10 is used for monitoring the stress magnitude of the suckers 8, and the displacement sensor 9, the force sensor 10 and the driving device 6 are all connected with the controller.
During testing, the long box body is placed along the width direction of two door leaves of an elevator car, so that two suckers 8 respectively correspond to the two door leaves and adsorb the corresponding door leaves, the controller controls the driving device 6 to act, the driving device 6 drives the positive and negative threaded screw 7 to rotate, at the moment, the turning directions of two sections of threaded structures on the long box body are opposite, one section of threaded structure is always positive in rotation, the other section of threaded structure is negative in rotation, when the two sections of threaded structures move in the opposite direction, the threaded structures drive the corresponding slide blocks 12 to move along the axial direction of the positive and negative threaded screw 7, the two slide blocks 12 also move in the opposite direction, the corresponding two suckers 8 also move in the opposite direction, and therefore the door leaves are driven to move towards the opening trend, in the process, the displacement sensor 9 monitors the distance of the opened door leaf in real time, and the force sensor 10 detects the force used for opening the door leaf, so that when the force sensor 10 detects that the force is 100 kilograms of force, the force sensor 10 sends a signal to the controller, the controller controls the driving device 6 to stop driving, the positive and negative screw rods 7 stop rotating, the sliding block stops moving, the sucking disc stops moving, and the door leaf stops acting, at the moment, the displacement sensor sends a measured displacement signal to the control device, and the control device sends the displacement signal to an external display device, so that the opening force of the door leaf of the elevator car can be tested quickly and accurately, and the opening force of the door leaf of the elevator car is ensured to meet the national standard; after the test is finished, the control device controls the driving device to act to drive the positive and negative screw 7 to rotate reversely, so that the two sliders are driven to move oppositely through the two sections of thread structures to return, and finally the two suckers are driven to return.
Preferably, the slider 12 includes the cooperation the slider body of helicitic texture and be used for connecting the connecting piece of sucking disc 8, the connecting piece is including the cover locate the connecting piece body on the slider body with set up in the connecting portion of the rear portion of connecting piece body, the rear side of connecting portion is opened and is equipped with vertical recess. In this embodiment, the sucking disc 8 adopts powerful sucking disc for guarantee absorbent effect, guarantee the reliability, and be provided with vertical joint arch at the back of sucking disc 8, joint arch card is gone into it is fixed in the recess. Through the cooperation of the vertical connecting bulge and the vertical groove, the stress in the transverse direction is reliable when the sucker is driven by the sliding blocks to move back to back. Further preferably, in this embodiment, the connecting protrusion is connected with the groove by a screw.
Preferably, the long box body comprises a bottom plate 2, a first end side plate 3 and a second end side plate 4 which are arranged at two ends of the bottom plate 2 and protrude upwards, and a front side plate 5 which is arranged at the front side of the bottom plate 2 and protrudes upwards, wherein two ends of the front side plate 5 are respectively connected with the first end side plate 3 and the second end side plate 4. In this embodiment, the top and the rear side of the long box body are of an open structure, so that the sucker can be conveniently connected, and the rotation of the threaded structure and the movement of the slider can be conveniently observed.
Preferably, one end of the positive and negative tooth screw 7 is rotatably connected to the first end side plate 3 and extends out of the first end side plate 3 to be connected with the driving device 6, and the other end of the positive and negative tooth screw 7 is rotatably connected to the second end side plate 4; and bearings are respectively arranged between the positive and negative thread screw 7 and the first end side plate 3 and between the positive and negative thread screw and the second end side plate 4.
Preferably, in this embodiment, the bottom of the bottom plate 2 is connected with a vertically-arranged and vertically-retractable support rod 1. By utilizing the flexibility of the supporting rod 1, the opening force test at different height positions can be met, and the application range is wide. In particular, a base 13 is provided at the bottom of the support bar 1 for stably supporting the above structure.
Preferably, the displacement sensor 9 includes a strip-shaped body and a sliding rod sleeved in the body, the front end of the sliding rod is connected to one top end of the sliding block 12, the middle section of the body is connected to the other top end of the sliding block 12, and when the two sliding blocks 12 move in opposite directions, the sliding rod is driven to extend into or extend out of the body.
Preferably, the force sensor 10 is disposed on a side of the slider 12.
Preferably, a limit ring is arranged between the two sections of the thread structures of the screw 7 with the positive and negative teeth. Utilize the spacing ring can be better two sliders of spacing to avoid colliding mutually.
The testing machine is simple in structure, suitable for testing the opening force of the door leaf, convenient to operate, accurate in test and high in reliability.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (6)
1. The elevator car door leaf opening force testing machine is characterized by comprising a transversely placed long box body, wherein a positive and negative threaded rod (7) is arranged in the long box body along the length direction of the long box body, two ends of the positive and negative threaded rod (7) are respectively and rotatably connected to two end parts of the long box body, and one end of the positive and negative threaded rod (7) extends out of the end part of the long box body and then is connected with a driving device (6); the positive and negative thread screw (7) in the long box body comprises two sections of thread structures, the thread turning directions of the thread structures are opposite, a sliding block (12) is sleeved on each section of thread structure, one side part of the sliding block (12) extends out of the rear side of the long box body and is connected with a sucking disc (8), and the two sucking discs (8) respectively correspond to a door leaf of an elevator car;
the device is characterized by also comprising a controller, a displacement sensor (9) for monitoring the relative movement distance of the two suckers (8) and a force sensor (10) for monitoring the stress of the suckers (8), wherein the displacement sensor (9), the force sensor (10) and the driving device (6) are all connected with the controller;
the slider (12) comprises a slider body matched with the threaded structure and a connecting piece used for connecting the sucker (8), the connecting piece comprises a connecting piece body sleeved on the slider body and a connecting part arranged on the rear side part of the connecting piece body, a vertical groove is formed in the rear side of the connecting part, a vertical connecting bulge is arranged on the back surface of the sucker (8), the connecting bulge is clamped into the groove for fixing, and the connecting bulge is connected with the groove through a screw;
the long box body comprises a bottom plate (2), and the bottom of the bottom plate (2) is connected with a vertically arranged and vertically telescopic support rod (1);
the long box body is characterized by further comprising a first end side plate (3) and a second end side plate (4) which are arranged at two ends of the bottom plate (2) and protrude upwards, one end of the positive and negative tooth screw rod (7) can be rotatably connected to the first end side plate (3) and extend out of the first end side plate (3) and then connected with the driving device (6), and the other end of the positive and negative tooth screw rod (7) can be rotatably connected to the second end side plate (4).
2. The elevator car door leaf opening force testing machine according to claim 1, wherein bearings are arranged between the positive and negative thread screws (7) and the first end side plate (3) and the second end side plate (4) respectively.
3. The elevator car door leaf opening force testing machine according to claim 1, wherein the long box body further comprises a front side plate (5) which is arranged on the front side of the bottom plate (2) and protrudes upwards, and two ends of the front side plate (5) are respectively connected with the first end side plate (3) and the second end side plate (4).
4. The elevator car door leaf opening force testing machine according to any one of claims 1-3, characterized in that the displacement sensor (9) comprises an elongated body and a sliding rod sleeved in the body, the front end of the sliding rod is connected to the top end of one of the sliding blocks (12), the middle section of the body is connected to the top end of the other sliding block (12), and when the two sliding blocks (12) move in opposite directions, the sliding rod is driven to extend into or out of the body.
5. Elevator car door leaf opening force tester according to any of claims 1-3, characterized in that the force sensor (10) is arranged at the side of one of the sliders (12).
6. The elevator car door leaf opening force testing machine according to any one of claims 1 to 3, characterized in that a limit ring is arranged between two sections of the thread structures of the screw (7) with the positive and negative teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004848.5A CN106744118B (en) | 2017-01-04 | 2017-01-04 | Elevator car door leaf opening force testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004848.5A CN106744118B (en) | 2017-01-04 | 2017-01-04 | Elevator car door leaf opening force testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106744118A CN106744118A (en) | 2017-05-31 |
| CN106744118B true CN106744118B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710004848.5A Active CN106744118B (en) | 2017-01-04 | 2017-01-04 | Elevator car door leaf opening force testing machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114249200A (en) * | 2021-11-25 | 2022-03-29 | 贵州中航电梯有限责任公司 | Elevator door motor detection device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011157712A (en) * | 2010-01-29 | 2011-08-18 | Selco Corp | Automatic door opening/closing control device, automatic door opening/closing control method, and automatic door equipped with automatic door opening/closing control device |
| CN102768091A (en) * | 2012-07-20 | 2012-11-07 | 长春轨道客车股份有限公司 | Manual door-opening force measuring method of subway vehicle sliding plug door |
| CN103728127B (en) * | 2014-01-21 | 2016-04-27 | 广东省肇庆市质量计量监督检测所 | A kind of checkout equipment of automatic door-closing device |
| CN103969070B (en) * | 2014-04-30 | 2016-05-18 | 中山市鸿勋机械有限公司 | Elevator door deformeter |
| CN103954445B (en) * | 2014-05-16 | 2017-03-15 | 广东省特种设备检测研究院 | Portable elevator layer door load tester and method of testing |
| CN205506275U (en) * | 2016-03-18 | 2016-08-24 | 上海市特种设备监督检验技术研究院 | Elevator power tester that opens door |
| CN105668366B (en) * | 2016-03-24 | 2018-05-25 | 西安特种设备检验检测院 | A kind of elevator door door gap measuring device |
| CN206538061U (en) * | 2017-01-04 | 2017-10-03 | 江苏省特种设备安全监督检验研究院 | Lift car door leaf opening force testing machine |
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2017
- 2017-01-04 CN CN201710004848.5A patent/CN106744118B/en active Active
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