CN115346428A - Linkage test display device of elevator car and test method thereof - Google Patents
Linkage test display device of elevator car and test method thereof Download PDFInfo
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- CN115346428A CN115346428A CN202210428756.0A CN202210428756A CN115346428A CN 115346428 A CN115346428 A CN 115346428A CN 202210428756 A CN202210428756 A CN 202210428756A CN 115346428 A CN115346428 A CN 115346428A
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims description 13
- 230000001174 ascending effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000004088 simulation Methods 0.000 description 6
- 238000011076 safety test Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The invention discloses a linkage test display device of an elevator car and a test method thereof, and the linkage test display device comprises a derrick and a derrick enclosure, wherein a car model is connected in the derrick in a sliding manner through a guide rail, a buffer is arranged at the bottom of the derrick, a collision bow is arranged on the car model, safety tongs are arranged on the left side and the right side of the car model, an electric hoist and a speed limiter are arranged at the top of the derrick through a fixing frame, the output end of the electric hoist is connected with a magnetic sucker for sucking the top end of the car model through a rope, and the speed limiter is connected with a pull rod of the safety tongs through a steel wire rope.
Description
Technical Field
The invention relates to the technical field of elevator car simulation safety brake testing, in particular to a linkage test display device and a test method of an elevator car.
Background
Elevator refers to a fixed installation for transporting passengers or goods between two rows of rigid guide rails, which are vertical or inclined by no more than 15 °, of an electrically driven car. It has a cage which runs between at least two rows of vertical or inclined rigid guide rails with an angle of inclination of less than 15 deg.. The size and the structural form of the lift car are convenient for passengers to access or load and unload goods, and safety parts on the lift mainly comprise a brake (a band-type brake), a speed limiter, a buffer, a safety clamp and the like;
conventional elevator is because factors such as bulky, installation environment are difficult for carrying out the safety test, has great potential safety hazard, and is inconvenient to be used for showing for the public at any time, and the actual conditions in each city also has the difference moreover, if carry out the safety test show to on-the-spot elevator and can have various troubles.
Therefore, a platform device for simulating the safety test of the elevator car needs to be designed to simulate the linkage protection among safety parts under the condition that all hoisting ropes of the elevator car are broken, so that the platform device is used for public display, and the public can know that the car can be reliably stopped even if all steel wire ropes are broken, which is very important for popularization of elevator safety knowledge.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems in the prior art in the background art, the invention provides an elevator car linkage test display device and a test method thereof.
The technical scheme adopted by the invention for solving the technical problem is as follows: a linkage test display device of an elevator car comprises a derrick and a derrick enclosure, wherein a car model is connected in the derrick in a sliding mode through a guide rail, a buffer is arranged at the bottom of the derrick, a collision bow is arranged on the car model, safety tongs are arranged on the left side and the right side of the car model, and an electric switch is arranged on each safety tong; the top of the derrick is provided with an electric hoist and a speed limiter through a fixing frame, the output end of the electric hoist is connected with a magnetic sucker for sucking the top end of the car model through a rope, and the speed limiter is connected with a linkage mechanism of the safety gear through a steel wire rope; the headframe is characterized in that a control cabinet is further arranged at the bottom of the headframe, a button group is arranged on the control cabinet, and the button group is electrically connected with an electric hoist, a magnetic sucker and the like.
The technical scheme that the electric hoist and the magnetic sucker replace the traction machine is adopted, the condition that all traction ropes are broken is conveniently simulated, the linkage condition among safety parts is conveniently tested, the elevator safety simulation test is more convenient and faster by matching with the operation of the electric control cabinet, the elevator safety knowledge can be efficiently and clearly displayed, and the elevator safety simulation test device is better popularized and popularized.
Furthermore, in order to ensure accurate speed response of the speed governor, a tensioning wheel for tensioning a speed governor steel wire rope is further arranged at the bottom of the derrick, the tensioning wheel is installed on the derrick through a fixing plate, and the vertical motion of the elevator is converted into the rotation motion of the speed governor by the steel wire rope. When the rotation speed of the speed governor exceeds a limit value, the speed governor firstly enables the overspeed switch to act to cut off the power supply of the elevator control loop, and the electromagnetic brake is subjected to power-off braking. If the brake is out of order, at the moment, if the elevator goes down, the speed limiter blocks the steel wire rope, the safety tongs are forced to act, the elevator is forced to stop on the guide rail, in order to prevent the electric fuse machine from continuing to rotate, the electric switch of the safety tongs is specially arranged, and when the safety tongs act, the switch acts and is cut off to control the elevator to return. Neither the governor nor the safety gear alone can accomplish the above task. The above tasks are accomplished by their cooperation. Furthermore, the derrick enclosure is also provided with a switch component matched with the running route of the impact bow, and the impact bow collides with the corresponding switch component to trigger an action command when moving up and down along with the car model so as to ensure the running safety of the elevator.
Further, the switch assembly of the invention comprises limit switches arranged at the upper end and the lower end of the pantograph route and a forced switch arranged in the middle.
Further, the connection relationship of the linkage mechanism of the present invention is described as follows: the rope end of the speed limiter pulls the wedge block of the right safety gear through a lever to enable the right safety gear to act; meanwhile, the action of the rope end of the speed limiter pulls the wedge block of the left safety gear through the connecting rod system, so that the left safety gear acts. In the action process of the connecting rod, the electric safety device is actuated through the pulling plate on the lever, and the electric safety loop is cut off to stop the motor.
The test method comprises the following steps:
s1, a main switch in a control cabinet is closed and power is supplied;
s2, turning the test switch to an OFF position, pressing a platform descending button, and loosening the platform descending button when the magnetic suction disc is in contact with the car model;
s3: pressing a 'sucker action' button, lighting a green indicator light, and sucking a sucker and the lift car;
s4: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s5: turning a test switch to an 'ON' position, pressing a 'sucker releasing' button, turning the test switch to an 'OFF' position immediately, and enabling a car model safety gear to act and a car to stop;
s6: pressing a 'platform descending' button, and when the magnetic sucker is contacted with the lift car, loosening the 'platform descending' button;
s7: pressing the 'sucker action' button, and sucking the sucker with the lift car;
s8: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s9: repeating the steps S2-S8 according to the requirement of the test, and pressing a 'platform descending' button after the test is finished to descend the car model to the buffer;
s10: pressing a 'sucker releasing' button, then pressing a 'platform ascending' button, and lifting the magnetic sucker to an initial position;
s11: when the car model is on the buffer and the magnetic sucker is at the initial position, the main switch in the control cabinet is switched off, and the test is finished;
attention is paid to the following points:
1. pressing down an emergency stop button under the condition that the motor cannot stop rotating, and when the lift car does not reach the limit position, please not press down a suction disc release button;
2. the governor and the safety gear can reliably act due to some reasons of operation, machinery or electricity in the running process of the elevator, and the forced switch can force the governor to act.
The invention has the beneficial effects that: the invention provides a platform device for simulating linkage tests among safety components under the condition that a traction rope of an elevator car is completely broken, reduces large-scale elevator equipment to a reasonable test range, greatly reduces test cost and test operation difficulty, provides a set of test method by matching with an electric hoist and a magnetic sucker, is efficient and convenient in test work, facilitates the transportation of the whole set of equipment with reduced size to safety education bases of various cities, and makes great contribution to the popularization and popularization of elevator safety knowledge.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of another embodiment of the present invention;
FIG. 3 is a partial enlarged view of the point A in the present invention.
Fig. 4 to 7 are electrical schematic diagrams in the present invention.
In the figure: 1. the system comprises a derrick, 2 steel wire ropes, 3 a car model, 4 a buffer, 5 a collision bow, 6 a safety gear, 7 a fixed frame, 8 an electric hoist, 9 a speed limiter, 10 a rope, 11 a magnetic sucker, 12 a control cabinet, 13 a tension pulley, 14 a fixed plate, 15 a limit switch and 16 a forcing switch.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The embodiment of the linkage test display device of the elevator car comprises a derrick 1 and a derrick enclosure, wherein the derrick 1 is internally connected with a car model 3 in a sliding manner through a guide rail, a buffer 4 is arranged at the bottom of the derrick 1, a collision bow 5 is arranged on the car model 3, safety tongs 6 are arranged on the left side and the right side of the car model 3, and an electric switch is arranged on the safety tongs 6;
an electric hoist 8 and a speed limiter 9 are mounted at the top of the derrick 1 through a fixed frame 7, the output end of the electric hoist 8 is connected with a magnetic sucker 11 for sucking the top end of the car model 3 through a rope 10, and the speed limiter 9 is connected with a linkage mechanism of the safety gear 6 through a steel wire rope 2;
the derrick is characterized in that a control cabinet 12 is further arranged at the bottom of the derrick 1, a button group is arranged on the control cabinet 12, and the button group is electrically connected with the electric hoist 8, the magnetic sucker 11 and the like.
The bottom of the derrick 1 is also provided with a tension pulley 13 for tensioning a steel wire rope 2 of the speed limiter 9, the tension pulley 13 is installed on the derrick 1 through a fixing plate 14, a switch assembly matched with a running route of the impact bow 5 is also arranged on a derrick enclosure, and the impact bow 5 collides with the corresponding switch assembly to trigger an action command when moving up and down along with the car model 3 so as to ensure the running safety of the elevator. The switch assembly comprises limit switches 15 arranged at the upper end and the lower end of a running line of the impact bow 5 and a forced switch 16 arranged in the middle.
A steel wire rope 2 of the speed limiter 9 pulls a wedge block of the right safety gear 6 through a lever, so that the right safety gear 6 acts; meanwhile, the steel wire rope 2 acts to pull a wedge block of the left safety gear 6 through a connecting rod system to enable the left safety gear 6 to act, the electric safety device acts through a pulling plate on a lever in the action process of the connecting rod, and an electric safety loop is cut off to enable the motor to stop running.
The working principle is as follows: the wire rope converts the vertical motion of the elevator into a rotational motion of the governor. When the rotation speed of the speed governor exceeds a limit value, the speed governor firstly enables the overspeed switch to act to cut off the power supply of the elevator control loop, and the electromagnetic brake is subjected to power-off braking. If the brake fails, the speed limiter blocks the steel wire rope to force the safety gear to act if the elevator goes down, the elevator is forced to stop on the guide rail, in order to prevent the electric fuse machine from continuously rotating, a safety gear electric switch is specially arranged, and when the safety gear acts, the switch acts and is cut off to control the elevator. Neither the governor nor the safety gear alone can accomplish the above task. The above tasks are accomplished by their cooperation.
The elevator safety simulation test system adopts the technical scheme that the electric hoist and the magnetic sucker replace a traction machine, the condition that all traction ropes are broken is conveniently simulated, the linkage condition among safety parts is conveniently tested, the operation of an electric control cabinet is matched, the elevator safety simulation test is more convenient and faster, the elevator safety knowledge can be efficiently and clearly displayed, and the elevator safety simulation test system is better popularized and popularized.
Speed limiter-safety gear linkage test electrical schematic diagram (as shown in fig. 4-7):
the main circuit power supply voltage AC380V is controlled by the three-phase air switch, the phase sequence control relay detects the power supply phase sequence, and the ascending contactor and the descending contactor work independently in an interlocking way. The control circuit supply voltage is DC24V.
1. Controlling the coil of the electromagnetic chuck to be electrified through a KDZ chuck action relay, and hoisting the coil by the electric hoist and simulating the whole fracture of the hauling rope when the coil is electrified;
2. an electric hoist uplink button SPU and a KMS uplink contactor are electrified and attracted, the electric hoist rotates forwards, an upper limit switch acts when the electric hoist reaches a limit position, the motor contactor is cut off, and the lift car is prevented from continuously ascending;
3. the electric hoist is powered on and closed by a descending button SPD and a KMS descending contactor, the electric hoist rotates reversely, and a lower limit switch acts to cut off a motor contactor when the electric hoist reaches a limit position;
4. in a three-position switch SROPN braking mode, a KDZ electromagnetic chuck coil loses power to release the lift car, and a rope breaking switch relay KRG acts;
the test method comprises the following steps:
s1, a main switch in a control cabinet is closed and power is supplied;
s2, turning on the test switch to an OFF position, pressing a platform descending button, and loosening the platform descending button when the magnetic suction disc is in contact with the car model;
s3: when a sucker action button is pressed, a green indicator light is on, and a sucker is attracted with the lift car;
s4: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s5: turning the test switch to an 'ON' position, pressing a 'sucker releasing' button, immediately turning the test switch to an 'OFF' position, and enabling the car model safety gear to act and the car to stop;
s6: pressing a 'platform descending' button, and when the magnetic sucker is contacted with the lift car, loosening the 'platform descending' button;
s7: pressing the 'sucking disc action' button, and sucking the sucking disc and the lift car;
s8: pressing a 'platform ascending' button to lift the lift car to an upper limit position;
s9: repeating the steps S2-S8 according to the requirement of the test again, and pressing a 'platform descending' button to descend the car model onto the buffer after the test is finished;
s10: pressing a 'sucker releasing' button, then pressing a 'platform ascending' button, and lifting the magnetic sucker to an initial position;
s11: and when the car model is on the buffer and the magnetic sucker is at the initial position, the main switch in the control cabinet is switched off, and the test is finished.
Attention is paid to the following points:
1. pressing down an emergency stop button under the condition that the motor cannot stop rotating, and when the lift car does not reach the limit position, please not press down a suction disc release button;
2. the governor and the safety gear can reliably act due to some reasons of operation, machinery or electricity in the running process of the elevator, and the forced switch can force the governor to act.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an elevator car's experimental display device of linkage which characterized in that: the derrick comprises a derrick (1) and a derrick enclosure, wherein a car model (3) is connected in the derrick (1) in a sliding mode through a guide rail, a buffer (4) is arranged at the bottom of the derrick (1), a collision bow (5) is arranged on the car model (3), safety tongs (6) are arranged on the left side and the right side of the car model (3), and an electric switch is arranged on the safety tongs (6);
an electric hoist (8) and a speed limiter (9) are mounted at the top of the derrick (1) through a fixing frame (7), the output end of the electric hoist (8) is connected with a magnetic sucker (11) for sucking the top end of the car model (3) through a rope (10), and the speed limiter (9) is connected with a linkage mechanism of the safety tongs (6) through a steel wire rope (2);
the derrick is characterized in that a control cabinet (12) is further arranged at the bottom of the derrick (1), a button group is arranged on the control cabinet (12), and the button group is electrically connected with the electric hoist (8) and the magnetic sucker (11).
2. The linkage test demonstration device of the elevator car of claim 1, wherein: the derrick is characterized in that a tension wheel (13) used for tensioning a steel wire rope (2) of the speed limiter (9) is further arranged at the bottom of the derrick (1), and the tension wheel (13) is installed on the derrick (1) through a fixing plate (14).
3. The linkage test demonstration device of the elevator car according to claim 1, characterized in that: and the derrick enclosure is also provided with a switch component matched with the running route of the impact bow (5).
4. A linkage test demonstration apparatus for an elevator car according to claim 3, characterised in that: the switch assembly comprises limit switches (15) arranged at the upper end and the lower end of a running route of the impact bow (5) and a forced switch (16) in the middle.
5. The linkage test demonstration device of the elevator car according to claim 1, characterized in that: when the linkage protection is triggered, a steel wire rope (2) of the speed limiter (9) pulls a wedge block of the right safety gear (6) through a lever, so that the right safety gear (6) acts; meanwhile, the steel wire rope (2) acts to pull a wedge block of the left safety gear (6) through a connecting rod system to enable the left safety gear (6) to act, the electric safety device acts through a pull plate on a lever in the action process of the connecting rod, and an electric safety loop is cut off to enable the motor to stop running.
6. A test method of a linkage test display device of an elevator car is characterized in that:
s1, a main switch in a control cabinet (12) is closed and power is supplied;
s2, turning on the test switch to an OFF position, pressing a platform descending button, and loosening the platform descending button when the magnetic suction disc (11) is in contact with the car model (3);
s3: pressing a 'sucker action' button, lighting a green indicator light, and sucking a sucker and the lift car;
s4: pressing a 'platform ascending' button to lift the car model (3) to an upper limit position;
s5: turning a test switch to an 'ON' position, pressing a 'sucker releasing' button, immediately turning the test switch to an 'OFF' position, and enabling a safety gear (6) of a car model (3) to act and a car to stop;
s6: pressing a 'platform descending' button, and when the magnetic suction disc (11) is contacted with the car model (3), loosening the 'platform descending' button;
s7: pressing a sucker action button, and attracting the magnetic sucker (11) with the car model (3);
s8: pressing a 'platform ascending' button to lift the car model (3) to an upper limit position;
s9: repeating the steps S2-S8 according to the requirement of the test again, and pressing a 'platform descending' button to descend the car model (3) to the buffer after the test is finished;
s10: pressing a 'sucker releasing' button, then pressing a 'platform ascending' button, and lifting the magnetic sucker (11) to an initial position;
s11: and (3) ensuring that the car model (3) is on the buffer, and when the magnetic suction disc (11) is at the initial position, disconnecting the main switch in the control cabinet (12), and ending the test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428756.0A CN115346428A (en) | 2022-04-22 | 2022-04-22 | Linkage test display device of elevator car and test method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428756.0A CN115346428A (en) | 2022-04-22 | 2022-04-22 | Linkage test display device of elevator car and test method thereof |
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| CN115346428A true CN115346428A (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210428756.0A Pending CN115346428A (en) | 2022-04-22 | 2022-04-22 | Linkage test display device of elevator car and test method thereof |
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| CN102229395A (en) * | 2011-07-08 | 2011-11-02 | 中国矿业大学 | Multi-functional simulation experiment system for mining elevator |
| CN102862893A (en) * | 2011-07-07 | 2013-01-09 | 刘小泉 | Lifting plier device of elevator car |
| CN203385550U (en) * | 2013-08-19 | 2014-01-08 | 天津市特种设备监督检验技术研究院 | Instantaneous-type anti-drop safety device inspection testbed |
| CN106081783A (en) * | 2016-08-30 | 2016-11-09 | 常熟市佳能电梯配件有限公司 | A kind of electromagnetic brake preventing accidental movement of elevator cage and braking method |
| CN106315338A (en) * | 2016-09-29 | 2017-01-11 | 克莱斯电梯（中国）有限公司 | Passenger elevator for preventing safety accidents caused by accidental movement of lift car from happening |
| CN208368011U (en) * | 2017-12-14 | 2019-01-11 | 常熟理工学院 | Elevator Teaching Model based on PLC touch screen control |
| CN111824882A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | System based on car safety |
| CN112875458A (en) * | 2021-03-22 | 2021-06-01 | 南京市特种设备安全监督检验研究院 | Elevator safety gear operating mechanism |
| CN113998554A (en) * | 2021-12-06 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Online detection method and device for elevator safety device |
-
2022
- 2022-04-22 CN CN202210428756.0A patent/CN115346428A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB121553A (en) * | 1918-03-08 | 1918-12-24 | Waygood Otis Ltd | Improvements in and relating to Elevators and the like. |
| CN201458462U (en) * | 2009-09-14 | 2010-05-12 | 李旭华 | Warehouse elevator |
| CN102862893A (en) * | 2011-07-07 | 2013-01-09 | 刘小泉 | Lifting plier device of elevator car |
| CN102229395A (en) * | 2011-07-08 | 2011-11-02 | 中国矿业大学 | Multi-functional simulation experiment system for mining elevator |
| CN203385550U (en) * | 2013-08-19 | 2014-01-08 | 天津市特种设备监督检验技术研究院 | Instantaneous-type anti-drop safety device inspection testbed |
| CN106081783A (en) * | 2016-08-30 | 2016-11-09 | 常熟市佳能电梯配件有限公司 | A kind of electromagnetic brake preventing accidental movement of elevator cage and braking method |
| CN106315338A (en) * | 2016-09-29 | 2017-01-11 | 克莱斯电梯（中国）有限公司 | Passenger elevator for preventing safety accidents caused by accidental movement of lift car from happening |
| CN208368011U (en) * | 2017-12-14 | 2019-01-11 | 常熟理工学院 | Elevator Teaching Model based on PLC touch screen control |
| CN111824882A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | System based on car safety |
| CN112875458A (en) * | 2021-03-22 | 2021-06-01 | 南京市特种设备安全监督检验研究院 | Elevator safety gear operating mechanism |
| CN113998554A (en) * | 2021-12-06 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Online detection method and device for elevator safety device |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Defeng Inventor after: Liu Lei Inventor after: Zhou You Inventor after: Cao Ming Inventor after: Xie Bin Inventor after: Yin Weiqiang Inventor after: Pan Jinguo Inventor before: Li Defeng Inventor before: Liu Lei Inventor before: Zhou You Inventor before: Cao Mian Inventor before: Xie Bin Inventor before: Yin Weiqiang Inventor before: Pan Jinguo |