CN116588774A - Freight elevator service life prediction device and method - Google Patents
Freight elevator service life prediction device and method Download PDFInfo
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- CN116588774A CN116588774A CN202310668133.5A CN202310668133A CN116588774A CN 116588774 A CN116588774 A CN 116588774A CN 202310668133 A CN202310668133 A CN 202310668133A CN 116588774 A CN116588774 A CN 116588774A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 238000005299 abrasion Methods 0.000 claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
-
- 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
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to the technical field of elevator life prediction, in particular to a freight elevator life prediction device and a freight elevator life prediction method, wherein the freight elevator life prediction device comprises a driving traction sheave (1) and a driving steel wire rope (4); the horizontal adjustment can cooperate with the abrasion fracture detection of the driving steel wire rope and the abrasion detection of the driving traction sheave, the safe running distance or the service life of the freight elevator can be predicted by detecting the abrasion degree of the driving steel wire rope and the driving traction sheave respectively, three influencing factors affecting the service life of the elevator, namely the levelness of the driving steel wire and the driving traction sheave can be controlled through cooperation, the service life prediction which is stable and reliable can be established, the timely maintenance of relevant parts is facilitated, and the safe running of the elevator is ensured.
Description
Technical Field
The invention relates to the technical field of elevator life prediction, in particular to a freight elevator life prediction device and method.
Background
The elevator is a vertical elevator taking a motor as power, is provided with a box-shaped nacelle and is used for taking passengers or carrying goods in a multi-storey building; elevators are important in transporting goods, especially heavy goods, as vertical transportation means in buildings, and therefore life prediction of freight elevators is extremely important.
Taking the current common traction type elevator as an example, the main structure of the freight elevator comprises a traction system, an inner and outer door system of a car, a car system and a counterweight mechanism. The outside of the car mostly adopts channel steel as an outer frame of the car; the traction system takes a traction machine as a driving mechanism, a steel wire rope is hung on a traction wheel of the traction machine, one end of the steel wire rope is hung on a car, the other end of the steel wire rope is hung on a counterweight device, and when the traction machine rotates, traction force is generated by friction force between the steel wire rope and a rope wheel to drive the car to move up and down; the counterweight mechanism plays a role in balancing the weight of the elevator car in the traction process, and is connected with the elevator car through a traction steel wire rope.
Therefore, one of key influencing factors of the service life of the freight elevator is the service life or state of the steel wire rope, and if the steel wire rope is damaged and needs to be maintained in time, the service life of the freight elevator can be used as one of judging standards for elevator maintenance due to expiration of the service life; in addition, friction force exists between the steel wire rope and the traction sheave, and the long-term abrasion of the sheave body can also influence the service life of the elevator; if the elevator is not kept in a horizontal state and moves vertically up and down, parts such as a steel wire rope, a traction sheave and the like are seriously worn; in view of the above, in order to facilitate prediction of the life of a freight elevator as a reference for regular maintenance, it is necessary to be able to detect the state of wear or breakage of the wire rope, and to be able to detect the horizontal state of the car and the degree of wear of the traction sheave. In view of this, we propose a freight elevator life prediction device and method.
Disclosure of Invention
In order to make up for the defects, the invention provides a freight elevator service life prediction device and a freight elevator service life prediction method.
The technical scheme of the invention is as follows:
a freight elevator life prediction device comprising a drive traction sheave (1) and a drive wire rope (4), characterized in that: the driving steel wire rope (4) is arranged on the driving traction sheave (1), the driving traction sheave (1) provides a rotation driving force through a driving motor (2), and the freight elevator further comprises a redirecting traction sheave (3) and a safety speed limiting device (5); the intelligent camera (6) and the camera light source (7) are respectively and fixedly arranged at two sides of the corresponding position of the moving path of the driving steel wire rope (4) of the freight elevator; the driving steel wire rope (4) coaxially penetrates into the sleeve ring (11), a moving cavity (10) with the diameter not smaller than that of the driving steel wire rope (4) is arranged inside the sleeve ring (11), the sleeve ring (11) adopts an unclosed annular structure with one side open, and the sleeve ring (11) comprises an outer ring seat (112) and a conductive inner layer (111); the two ends of the non-closed annular structure of the conductive inner layer (111) are electrically connected with a conducting circuit through wires, early warning electronic elements such as an early warning lamp and the like are electrically connected to the circuit, and an insulating protection layer is coated on the surface of the conductive inner layer (111).
Preferably, a floating push rod (8) which can keep relative sliding contact with the wheel groove is fixedly arranged at the wheel groove of the driving traction wheel (1), and a displacement sensor (9) is fixedly arranged at the other end of the floating push rod (8).
A freight elevator life prediction method, employing the freight elevator life prediction apparatus as described above, predicts the safe running distance or service life of the freight elevator by adjusting and detecting the levelness of the freight elevator car, the degree of wear of the drive wire rope (4) and the drive sheave (1).
Preferably, the specific method for detecting the abrasion fracture of the driving steel wire rope (4) comprises the following steps: the intelligent camera (6) is used for monitoring the moving process of the driving steel wire rope (4) in real time and photographing to obtain a surface abrasion picture, judging whether the appearance of the driving steel wire rope (4) is abraded, deformed or broken, and then predicting the safe running distance or the service life of the driving steel wire rope (4).
Preferably, the method for detecting the abrasion fracture of the driving steel wire rope (4) further comprises the following steps: the driving steel wire rope (4) moves in the moving cavity (10), after abrasion and breakage occur, the driving steel wire rope (4) is provided with scattered broken end steel wires, the broken end steel wires are in friction contact with the conductive inner layer (111) to generate short circuit early warning, or the broken end steel wires are in friction to cause the conductive inner layer (111) to generate broken circuit early warning, and abrasion and breakage of the driving steel wire rope (4) can be predicted.
Preferably, the specific method for detecting the wear of the driving traction sheave (1) comprises the following steps: the displacement sensor (9) can measure the distance between the floating push rod (8) at the corresponding end, when the driving traction wheel (1) is worn, the floating push rod (8) is in contact displacement, so that the displacement sensor (9) obtains the displacement distance changed between the floating push rod (8), the wear degree of the driving traction wheel (1) can be judged according to the change of the displacement distance, and then the safe running distance or the service life of the driving traction wheel (1) can be predicted.
Preferably, the specific method for adjusting the horizontal of the freight elevator car comprises the following steps: the horizontal condition of the elevator car is monitored and recorded through an inclination angle sensor arranged on the freight elevator, the levelness of the elevator car is adjusted through a servo motor serving as a horizontal adjusting mechanism, and the vertical running of the elevator is kept.
Preferably, the life prediction algorithm model is used for predicting the life of the freight elevator, specifically:
；
wherein n: driving the traction wheel to rotate for a circle number, wherein n is an approximate integer;
r n : driving the radius (mm) of the traction sheave after n turns;
m: driving traction sheave traction weight (Kg);
h: predicting the service life (h) of the elevator, wherein h is an approximate integer;
r j : driving the radius (mm) of the rope body of the steel wire rope; e is the base of natural logarithm, irrational number, 2.71828;
alpha: coefficient of friction; beta: elevator operating speed (m/s);
t: elevator already running time (h); b: the car levelness changes the number of degrees, and b=0 when horizontal.
Compared with the prior art, the invention has the beneficial effects that:
the freight elevator service life prediction device and the freight elevator service life prediction method can keep the levelness of the elevator car through horizontal adjustment, and can also perform horizontal detection; the horizontal adjustment can cooperate with the abrasion fracture detection of the driving steel wire rope and the abrasion detection of the driving traction sheave, the safe running distance or the service life of the freight elevator is predicted according to the levelness of the freight elevator, the abrasion degree of the driving steel wire rope and the abrasion degree of the driving traction sheave, and a relatively stable and reliable life prediction method can be established through the combined action of the three, so that the elevator is beneficial to timely maintaining relevant parts and ensuring the safe running of the elevator.
Drawings
FIG. 1 is a schematic diagram of the principle of detecting the abrasion and breakage of a driving steel wire rope;
FIG. 2 is a schematic diagram of the principle of the invention for detecting the wear of the driving traction sheave;
FIG. 3 is a diagram showing a second principle of detecting the abrasion and breakage of the driving wire rope according to the present invention.
The meaning of each reference numeral in the figures is:
1. driving a traction sheave; 2. a driving motor; 3. redirecting traction wheels; 4. driving the steel wire rope; 5. a safety speed limiting device; 6. an intelligent camera; 7. a camera light source; 8. a floating push rod; 9. a displacement sensor; 10. a moving chamber; 11. a collar; 111. a conductive inner layer; 112. an outer ring seat.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention is described in detail by the following embodiments:
the predicting method comprises the steps of detecting the abrasion and fracture of the driving steel wire rope 4 and the abrasion and fracture of the driving traction sheave 1, which are carried out in cooperation with the horizontal adjustment of the freight elevator car, and predicting the safe running distance or the service life of the freight elevator by detecting the abrasion degree of the driving steel wire rope 4 and the driving traction sheave 1 respectively.
The driving steel wire rope 4 is arranged on the driving traction sheave 1, the driving traction sheave 1 provides a rotation driving force through the driving motor 2, and the freight elevator also comprises a redirecting traction sheave 3 and a safety speed limiting device 5; the structure is the structure of the existing elevator, so that excessive description is not made, and the service life prediction method based on the existing structure is mainly used.
The freight elevator is fixedly provided with an intelligent camera 6 and a camera light source 7 at two sides of the corresponding position of the moving path of the driving steel wire rope 4 respectively; as shown in one of the schematic diagrams of the abrasion and fracture detection principle of the driving steel wire rope shown in fig. 1, the specific method for detecting the abrasion and fracture of the driving steel wire rope 4 is as follows: the intelligent camera 6 is used for monitoring the moving process of the driving steel wire rope 4 in real time and photographing to obtain a surface abrasion picture, judging whether the appearance of the driving steel wire rope 4 is abraded, deformed or broken, and then predicting the safe running distance or the service life of the driving steel wire rope 4. The existing driving steel wire ropes 4 mostly adopt multi-strand steel wire ropes, taking six-strand steel wire ropes as an example, the intelligent camera 6 monitors the six-strand steel wire ropes in real time, can detect abrasion condition pictures, and establishes a steel wire rope abrasion analysis model according to an abrasion picture detection method of the steel wire ropes, and sets how to break abrasion; transmitting the detection result to a system for abrasion analysis; the service life of the driving steel wire rope 4 and the safe running distance of the steel wire rope are obtained through long-time or multiple detection, and a prediction is made for the maintenance and replacement period.
The driving steel wire rope 4 coaxially penetrates into the lantern ring 11, a moving cavity 10 with the diameter not smaller than that of the driving steel wire rope 4 is arranged inside the lantern ring 11, the lantern ring 11 adopts an unclosed annular structure with one side open, and the lantern ring 11 comprises an outer ring seat 112 and a conductive inner layer 111; the two ends of the conductive inner layer 111, which are not closed to the annular structure, are electrically connected with a conducting circuit through wires, and the circuit is electrically connected with an early warning lamp serving as an early warning electronic element, and the surface of the conductive inner layer 111 is coated with an insulating protective layer polyethylene film.
The method for detecting the abrasion fracture of the driving steel wire rope 4 further comprises the following steps: when the driving steel wire rope 4 moves in the moving cavity 10 and is worn and broken, the driving steel wire rope 4 generates scattered broken end steel wires, the broken end steel wires are in friction contact with the conductive inner layer 111 to generate short circuit early warning, or the broken end steel wires are rubbed to cause the conductive inner layer 111 to generate broken circuit early warning, so that the situation that the driving steel wire rope 4 is worn and broken can be predicted; because when the broken end of the steel wire after the breakage of the driving steel wire rope 4 is opened to the periphery, namely the diameter of the broken end is enlarged, friction can be generated between the broken end and the sleeve ring 11, when the degree of abrasion is too large, the degree of opening is larger, the more abrasion is, loop faults can be caused after the conductive inner layer 111 is to be contacted or ground off, early warning is sent out, the preset breaking limit is reached, and the broken end needs to be replaced in time.
A floating push rod 8 which can keep relative sliding contact with the wheel groove is fixedly arranged at the wheel groove of the driving traction wheel 1, and a displacement sensor 9 is fixedly arranged at the other end of the floating push rod 8;
the specific method for detecting the abrasion of the driving traction sheave 1 comprises the following steps: the displacement sensor 9 can measure the distance between the traction sheave 1 and the floating push rod 8 at the corresponding end, when the traction sheave 1 is driven to be worn, the floating push rod 8 is caused to generate contact displacement, the displacement sensor 9 obtains the displacement distance changed between the traction sheave 1 and the floating push rod 8, the wear degree of the traction sheave 1 can be judged according to the change of the displacement distance, and then the safe running distance or the service life of the traction sheave 1 can be predicted. After the driving traction sheave 1 is worn, the contact surface between the floating push rod 8 and the driving traction sheave 1 is deepened, so that the displacement between the floating push rod 8 and the displacement sensor 9 is increased, the reading of the displacement sensor 9 is increased, and the wear degree of the driving traction sheave 1 can be judged; the safety service life of the driving traction sheave 1 is analyzed through the increase of the reading of the displacement sensor 9, and the maintenance period of the driving traction sheave 1 is made; ensuring the normal running of the lift car in a safe service period.
It is to be noted and understood that: the specific method for adjusting the horizontal of the freight elevator car comprises the following steps: the horizontal condition of the elevator car is monitored through an inclination angle sensor arranged on the freight elevator, and the levelness of the elevator car is adjusted through a servo motor serving as a horizontal adjusting mechanism, so that the aim is that the elevator car can slightly incline due to uneven bearing distribution in the lifting process, and then the driving steel wire rope 4 is driven to shift in position, so that the vertical running of the elevator is not guaranteed; the structure is the prior art adopted by the existing elevator, does not make excessive description, can ensure that a car system always runs vertically in the conveying process, and has the main purposes of reducing abrasion of a driving steel wire rope 4 caused by uneven levelness of the car, being beneficial to improving the running stability of the car, maintaining the stable vertical position of the driving steel wire rope 4, meeting the requirements of the prediction method, avoiding inaccurate prediction caused by abrasion of the driving steel wire rope 4, facilitating stable and accurate prediction judgment, but because the elevator runs dynamically, the levelness of the elevator can change in real time, and the elevator can not always be ensured to be in an absolute horizontal position due to the problem of adjustment accuracy, and further needing to detect the levelness of the elevator in real time as an auxiliary factor for judging the running life of the elevator.
The freight elevator life prediction method of the embodiment comprises the following steps: the worker respectively and fixedly installs a corresponding intelligent camera 6, a camera light source 7, a floating push rod 8 and a displacement sensor 9 according to the position of the driving steel wire rope 4, and a lantern ring 11 is sleeved on the vertical moving path of the driving steel wire rope 4; the driving steel wire rope 4 and the driving traction sheave 1 are worn, and the wear degree of the driving traction sheave 1 is detected through the displacement distance of the floating push rod 8; detecting the state in real time by matching with the intelligent camera 6; the freight elevator predicts the service life according to the formula.
Predicting the service life of the freight elevator by adopting a service life prediction algorithm model, wherein the service life prediction algorithm model specifically comprises the following steps:
；
wherein n: driving the traction wheel to rotate for a circle number, wherein n is an approximate integer;
r n : driving the radius (mm) of the traction sheave after n turns;
m: driving traction sheave traction weight (Kg);
h: predicting the service life (h) of the elevator, wherein h is an approximate integer;
r j : driving the radius (mm) of the rope body of the steel wire rope; e is the base of natural logarithm, irrational number, 2.71828;
alpha: coefficient of friction; beta: elevator operating speed (m/s);
t: elevator already running time (h); b: the car levelness changes the number of degrees, and b=0 when horizontal.
The following table is a life prediction test result according to the actual running condition of the freight elevator, and 5 embodiments are respectively taken for prediction calculation.
According to the freight elevator life prediction method provided by the invention, the safe running distance or the service life of the freight elevator is predicted according to the levelness of the freight elevator, the abrasion degree of the driving steel wire rope and the driving traction sheave, and a relatively stable and reliable life prediction method can be established through the combined action of the freight elevator levelness, the driving steel wire rope and the driving traction sheave, so that the service life prediction method is beneficial to timely maintaining relevant parts and ensuring the safe running of the elevator.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A freight elevator life prediction device comprising a drive traction sheave (1) and a drive wire rope (4), characterized in that: the driving steel wire rope (4) is arranged on the driving traction sheave (1), the driving traction sheave (1) provides a rotation driving force through a driving motor (2), and the freight elevator further comprises a redirecting traction sheave (3) and a safety speed limiting device (5); the intelligent camera (6) and the camera light source (7) are respectively and fixedly arranged at two sides of the corresponding position of the moving path of the driving steel wire rope (4) of the freight elevator; the driving steel wire rope (4) coaxially penetrates into the sleeve ring (11), a moving cavity (10) with the diameter not smaller than that of the driving steel wire rope (4) is arranged inside the sleeve ring (11), the sleeve ring (11) adopts an unclosed annular structure with one side open, and the sleeve ring (11) comprises an outer ring seat (112) and a conductive inner layer (111); the two ends of the non-closed annular structure of the conductive inner layer (111) are electrically connected with a conducting circuit through wires, early warning electronic elements such as an early warning lamp and the like are electrically connected to the circuit, and an insulating protection layer is coated on the surface of the conductive inner layer (111).
2. The freight elevator life prediction device according to claim 1, wherein: a floating push rod (8) which can keep relative sliding contact with the wheel groove is fixedly arranged at the wheel groove of the driving traction wheel (1), and a displacement sensor (9) is fixedly arranged at the other end of the floating push rod (8).
3. A freight elevator life prediction method employing the freight elevator life prediction apparatus according to claim 1 or 2, characterized in that: the prediction method predicts the safe running distance or service life of the freight elevator by adjusting and detecting the levelness of the freight elevator car and the abrasion degree of the driving steel wire rope (4) and the driving traction sheave (1).
4. A freight elevator life prediction method according to claim 3, characterized in that: the specific method for detecting the abrasion and fracture of the driving steel wire rope (4) comprises the following steps: the intelligent camera (6) is used for monitoring the moving process of the driving steel wire rope (4) in real time and photographing to obtain a surface abrasion picture, judging whether the appearance of the driving steel wire rope (4) is abraded, deformed or broken, and then predicting the safe running distance or the service life of the driving steel wire rope (4).
5. The freight elevator life prediction method according to claim 4, wherein: the method for detecting the abrasion fracture of the driving steel wire rope (4) further comprises the following steps: the driving steel wire rope (4) moves in the moving cavity (10), after abrasion and breakage occur, the driving steel wire rope (4) is provided with scattered broken end steel wires, the broken end steel wires are in friction contact with the conductive inner layer (111) to generate short circuit early warning, or the broken end steel wires are in friction to cause the conductive inner layer (111) to generate broken circuit early warning, and abrasion and breakage of the driving steel wire rope (4) can be predicted.
6. A freight elevator life prediction method according to claim 3, characterized in that: the specific method for detecting the abrasion of the driving traction sheave (1) comprises the following steps: the displacement sensor (9) can measure the distance between the floating push rod (8) at the corresponding end, when the driving traction wheel (1) is worn, the floating push rod (8) is in contact displacement, so that the displacement sensor (9) obtains the displacement distance changed between the floating push rod (8), the wear degree of the driving traction wheel (1) can be judged according to the change of the displacement distance, and then the safe running distance or the service life of the driving traction wheel (1) can be predicted.
7. A freight elevator life prediction method according to claim 3, characterized in that: the specific method for adjusting the horizontal of the freight elevator car comprises the following steps: the horizontal condition of the elevator car is monitored and recorded through an inclination angle sensor arranged on the freight elevator, the levelness of the elevator car is adjusted through a servo motor serving as a horizontal adjusting mechanism, and the vertical running of the elevator is kept.
8. A freight elevator life prediction method according to claim 3, characterized in that:
predicting the service life of the freight elevator by adopting a service life prediction algorithm model, wherein the service life prediction algorithm model specifically comprises the following steps:
；
wherein n: driving the traction wheel to rotate for a circle number, wherein n is an approximate integer;
r n : driving the radius (mm) of the traction sheave after n turns;
m: driving traction sheave traction weight (Kg);
h: predicting the service life (h) of the elevator, wherein h is an approximate integer;
r j : driving the radius (mm) of the rope body of the steel wire rope; e is the base of natural logarithm, irrational number, 2.71828;
alpha: coefficient of friction; beta: elevator operating speed (m/s);
t: elevator already running time (h); b: the car levelness changes the number of degrees, and b=0 when horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310668133.5A CN116588774A (en) | 2023-06-07 | 2023-06-07 | Freight elevator service life prediction device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310668133.5A CN116588774A (en) | 2023-06-07 | 2023-06-07 | Freight elevator service life prediction device and method |
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|---|---|
| CN116588774A true CN116588774A (en) | 2023-08-15 |
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|---|---|---|---|
| CN202310668133.5A Pending CN116588774A (en) | 2023-06-07 | 2023-06-07 | Freight elevator service life prediction device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116776655A (en) * | 2023-08-24 | 2023-09-19 | 成都思越智能装备股份有限公司 | Airflow simulation method for elevator car |
| CN116812713A (en) * | 2023-08-28 | 2023-09-29 | 成都思越智能装备股份有限公司 | Elevator steel wire rope defect detection method |
-
2023
- 2023-06-07 CN CN202310668133.5A patent/CN116588774A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116776655A (en) * | 2023-08-24 | 2023-09-19 | 成都思越智能装备股份有限公司 | Airflow simulation method for elevator car |
| CN116776655B (en) * | 2023-08-24 | 2023-10-24 | 成都思越智能装备股份有限公司 | Airflow simulation method for elevator car |
| CN116812713A (en) * | 2023-08-28 | 2023-09-29 | 成都思越智能装备股份有限公司 | Elevator steel wire rope defect detection method |
| CN116812713B (en) * | 2023-08-28 | 2023-11-14 | 成都思越智能装备股份有限公司 | Elevator steel wire rope defect detection method |
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