CN114476898B - Method and system for detecting abrasion degree of standard joint in guide rail frame of elevator - Google Patents

Method and system for detecting abrasion degree of standard joint in guide rail frame of elevator Download PDF

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Publication number
CN114476898B
CN114476898B CN202111534101.3A CN202111534101A CN114476898B CN 114476898 B CN114476898 B CN 114476898B CN 202111534101 A CN202111534101 A CN 202111534101A CN 114476898 B CN114476898 B CN 114476898B
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Prior art keywords
standard
cage
actual
passing
standard knot
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CN114476898A (en
Inventor
罗文龙
史宏旻
姚金柯
王鹏
王海峰
王辉
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Beijing Construction Mechanization Research Institute Co ltd
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Beijing Construction Mechanization Research Institute Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00Other common features of elevators
    • B66B7/12Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207Checking means
    • B66B7/1246Checking means specially adapted for guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00Safety gear
    • B66C15/06Arrangements or use of warning devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00Details of instruments

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

The invention discloses a method and a system for detecting the abrasion degree of a standard joint in a guide rail frame of an elevator, wherein the detection method comprises the following steps: pre-storing the total times B of the cage passing through the standard section when the standard section is in failure; acquiring the actual times b of the cage passing through the standard section; at least the actual number of times the cage passes the standard knot B is compared with the total number of times the cage passes the standard knot B when the standard knot is disabled to obtain the wear degree h of the standard knot. The invention compares the actual times of the hanging cage passing through the standard knot with the total times B of the hanging cage passing through the standard knot when the standard knot is in failure to judge whether the standard knot is in failure, thereby effectively avoiding the failure of the standard knot under the condition that personnel are not aware, and avoiding the complicated operation caused by the actual detection of the standard knot by tools such as flaw detection.

Description

Method and system for detecting abrasion degree of standard joint in guide rail frame of elevator
Technical Field
The invention relates to the technical field of construction machinery equipment, in particular to a method and a system for detecting the abrasion degree of a standard joint in a guide rail frame of an elevator.
Background
Elevators for construction generally include a vertically disposed track frame and a cage lifted along the track frame for transporting people and/or construction materials.
Each guide rail frame is formed by vertically butting a plurality of standard joints in sequence, the lifter is provided with a guide part which is used for being in contact with the standard joints, when the lifter moves up and down along the guide rail frames, the guide part can generate friction to a pipe body on the standard joint, the standard joint is enabled to be worn continuously, the standard joint can be disabled when the wear reaches a certain degree, and dangerous situations are caused.
However, there is currently no method for effectively detecting the degree of wear of a standard joint in a rail frame of an elevator in a construction state.
Disclosure of Invention
Aiming at the technical problems in the prior art, the embodiment of the invention provides a method and a system for detecting the abrasion degree of a standard joint in a guide rail frame of an elevator.
In order to solve the technical problems, the technical scheme adopted by the embodiment of the invention is as follows:
A method of detecting the degree of wear of a standard joint in a guide rail frame of an elevator, comprising:
pre-storing the total times B of the cage passing through the standard section when the standard section is in failure;
Acquiring the actual times b of the cage passing through the standard section;
at least the actual number of times the cage passes the standard knot B is compared with the total number of times the cage passes the standard knot B when the standard knot is disabled to obtain the wear degree h of the standard knot.
Preferably, the total number B of times the suspension cage passes the standard knot when the standard knot fails is pre-stored and is operated at a preset basic speed v0 based on the suspension cage; wherein:
The actual times a of the hanging cage passing through the standard knot are integrated with the actual speed influence parameter alpha of the representing hanging cage, and then the integrated actual times a of the hanging cage passing through the standard knot are compared with the total times B of the hanging cage passing through the standard knot when the standard knot is disabled, so that the abrasion degree h of the standard knot is obtained.
Preferably, the actual speed influencing parameter alpha is the ratio of the actual speed v of the lower suspension cage of the root to the preset basic running speed v 0.
Preferably, the obtaining of the actual number of times the cage passes the standard knot b comprises:
Each standard knot is assigned a different ID, and the standard knots are identified based on the IDs to cumulatively calculate the actual number of passes of the cage over the standard knots.
The invention also discloses a system for detecting the abrasion degree of the standard joint in the guide rail frame of the lifter, which comprises the following steps:
A label for attaching to different standard sections, the label on each standard section having a different ID;
the detection device is arranged on the suspension cage and is used for detecting the IDs of the labels on different standard sections;
a memory pre-storing a total number of times the cage passes through the standard knot when the standard knot is disabled, and a number of times the cage passes through each standard knot;
The processor is used for calculating the ratio of the actual number B of the hanging cage passing through the standard knot to the total number B of the hanging cage passing through the standard knot when the standard knot is in failure so as to obtain the abrasion degree h of the standard knot;
And the alarm alarms when the ratio A is greater than 1.
Preferably, the method comprises the steps of,
Pre-storing the total number B of times that the suspension cage passes through the standard section when the standard section is in failure, and operating at a preset basic speed v0 based on the suspension cage;
The system also comprises a speed sensor arranged on the suspension cage; the speed sensor is used for checking the actual speed passing through the standard knot;
the processor is used for comparing the actual times a of the hanging cage passing through the standard knot with the actual speed influence parameter alpha of the representing hanging cage and then with the total times B of the hanging cage passing through the standard knot when the standard knot is in failure so as to obtain the abrasion degree h of the standard knot.
Preferably, the actual speed influencing parameter alpha is the ratio of the actual speed v of the lower suspension cage of the root to the preset basic running speed v 0.
Compared with the prior art, the method and the system for detecting the abrasion degree of the standard joint in the guide rail frame of the elevator have the beneficial effects that:
1. The method of the application judges whether the standard joint is invalid or not by comparing the actual times of the hanging cage passing through the standard joint with the total times B of the hanging cage passing through the standard joint when the standard joint is invalid, thereby effectively avoiding the standard joint from being invalid under the condition of being unknown by personnel, and avoiding the complicated operation caused by the actual detection of the standard joint by tools such as flaw detection.
2. According to the application, the actual speed influence parameter alpha participates in the abrasion degree of the evaluation standard section, so that the evaluation accuracy is improved.
An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components thereof have been omitted.
The invention discloses a method and a system for detecting the abrasion degree of a standard joint in a guide rail frame of an elevator. Each standard section on the guide rail frame is attached with a label, each label is provided with a different ID, the detection device is arranged on the hanging cage, and when the hanging cage slides along the guide rail frame, the detection device can determine the corresponding standard section through identifying the different ID.
The method specifically comprises the following steps:
S10: and pre-storing the total number B of times the cage passes through the standard knot when the standard knot fails. The method comprises the steps of simulating all working conditions of the suspension cage passing through a standard section of a guide rail frame, enabling the suspension cage to pass through the standard section on a guide rail member in a reciprocating mode at a preset basic operation speed v0 of the suspension cage (the preset basic operation speed v0 is usually the rated operation speed of the suspension cage on a construction site), enabling the standard section to reach a failure abrasion result, and enabling the total number B of times of the suspension cage passing through the standard section when the standard section is in failure to be prestored in a memory.
S20, acquiring the actual times b of the cage passing through the standard knot and the actual speed v of the cage passing through the standard knot. During actual use of the elevator, a detection device on the cage is utilized to identify a tag ID on the standard section so as to determine the standard section passing by, and a memory records the actual times b of passing the standard section in real time; the actual speed v of the cage passing through the standard knot is detected by a speed sensor, and stored in a memory.
S30, the actual times a of the hanging cage passing through the standard joint are integrated with the actual speed influence parameter alpha representing the hanging cage by utilizing the processor, and then the integrated actual times a of the hanging cage passing through the standard joint are compared with the total times B of the hanging cage passing through the standard joint when the standard joint is in failure, so that the abrasion degree h of the standard joint is obtained. The actual speed influence parameter alpha is the ratio of the actual speed v of the suspension cage under the root number to the preset basic running speed v 0. When the ratio is greater than 1, the abrasion degree of the standard section is indicated to reach the failure degree, and the alarm gives an alarm. From the above, if the actual speed v of the cage is smaller than the preset basic running speed v0, the number of times the cage passes through the standard knot is even larger than the total number of times B, so that the standard knot cannot be disabled; if the actual speed v of the cage is greater than the preset basic speed v0, the standard knot will be disabled even if the number of times the cage passes through the standard knot is less than the total number of times B.
The method and the system for detecting the abrasion degree of the standard section in the guide rail frame of the elevator provided by the invention have the advantages that:
1. The method of the application judges whether the standard joint is invalid or not by comparing the actual times of the hanging cage passing through the standard joint with the total times B of the hanging cage passing through the standard joint when the standard joint is invalid, thereby effectively avoiding the standard joint from being invalid under the condition of being unknown by personnel, and avoiding the complicated operation caused by the actual detection of the standard joint by tools such as flaw detection.
2. According to the application, the actual speed influence parameter alpha participates in the abrasion degree of the evaluation standard section, so that the evaluation accuracy is improved.
Furthermore, although exemplary embodiments have been described in the present disclosure, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across), adaptations or alterations as would be appreciated by those in the art. The elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the invention. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.

Claims (2)

1. A method of detecting the degree of wear of a standard joint in a rail frame of an elevator, comprising:
pre-storing the total times B of the cage passing through the standard section when the standard section is in failure;
Acquiring the actual times b of the cage passing through the standard section;
At least comparing the actual number of times B that the cage passes through the standard knot with the total number of times B that the cage passes through the standard knot when the standard knot is disabled to obtain the abrasion degree h of the standard knot;
The total number B of times of the hanging cage passing through the standard section when the standard section is in failure by pre-storing is based on the hanging cage to run at a preset basic speed v0; wherein:
The actual times a of the hanging cage passing through the standard joint is integrated with the actual speed influence parameter alpha representing the hanging cage, and then the integrated actual times a of the hanging cage passing through the standard joint are compared with the total times B of the hanging cage passing through the standard joint when the standard joint is invalid, so that the abrasion degree h of the standard joint is obtained;
The actual speed influencing parameter alpha is:
wherein: v is the actual speed of the cage;
the obtaining of the actual times b of the cage passing through the standard knot comprises the following steps:
Each standard knot is assigned a different ID, and the standard knots are identified based on the IDs to cumulatively calculate the actual number of passes of the cage over the standard knots.
2. A system for detecting the degree of wear of a standard joint in a guide rail frame of an elevator, comprising:
A label for attaching to different standard sections, the label on each standard section having a different ID;
the detection device is arranged on the suspension cage and is used for detecting the IDs of the labels on different standard sections;
a memory pre-storing a total number of times the cage passes through the standard knot when the standard knot is disabled, and a number of times the cage passes through each standard knot;
The processor is used for calculating the ratio of the actual number B of the hanging cage passing through the standard knot to the total number B of the hanging cage passing through the standard knot when the standard knot is in failure so as to obtain the abrasion degree h of the standard knot;
the alarm gives an alarm when the ratio A is greater than 1;
Pre-storing the total number B of times that the suspension cage passes through the standard section when the standard section is in failure, and operating at a preset basic speed v0 based on the suspension cage;
The system also comprises a speed sensor arranged on the suspension cage; the speed sensor is used for checking the actual speed passing through the standard knot;
The processor is used for comparing the actual times a of the hanging cage passing through the standard joint with the actual speed influence parameter alpha representing the hanging cage after integrating with the total times B of the hanging cage passing through the standard joint when the standard joint is invalid so as to obtain the abrasion degree h of the standard joint;
The actual speed influence parameter alpha is obtained by adopting the following formula:
Wherein: v is the actual speed of the cage.
CN202111534101.3A 2021-12-15 2021-12-15 Method and system for detecting abrasion degree of standard joint in guide rail frame of elevator Active CN114476898B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663187A (en) * 2013-12-05 2014-03-26 中联重科股份有限公司 Crane, standard knot lifting and adding system thereof and standard knot lifting and adding method
CN112763104A (en) * 2020-12-23 2021-05-07 华中科技大学 Structural member fatigue life management system based on Internet of things and application
CN113307120A (en) * 2021-06-28 2021-08-27 北京建筑机械化研究院有限公司 Safety detection method and system for guide rail frame of elevator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663187A (en) * 2013-12-05 2014-03-26 中联重科股份有限公司 Crane, standard knot lifting and adding system thereof and standard knot lifting and adding method
CN112763104A (en) * 2020-12-23 2021-05-07 华中科技大学 Structural member fatigue life management system based on Internet of things and application
CN113307120A (en) * 2021-06-28 2021-08-27 北京建筑机械化研究院有限公司 Safety detection method and system for guide rail frame of elevator

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