CN113896075A - Fault detection system of rigid cage guide - Google Patents
Fault detection system of rigid cage guide Download PDFInfo
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- CN113896075A CN113896075A CN202111160905.1A CN202111160905A CN113896075A CN 113896075 A CN113896075 A CN 113896075A CN 202111160905 A CN202111160905 A CN 202111160905A CN 113896075 A CN113896075 A CN 113896075A
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- rigid cage
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- 238000001514 detection method Methods 0.000 title claims abstract description 91
- 238000006073 displacement reaction Methods 0.000 claims abstract description 115
- 239000000523 sample Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1246—Checking means specially adapted for guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
Abstract
The application is applicable to the technical field of vertical shaft hoisting, and provides a fault detection system of a rigid cage guide, which comprises: the fault detection device of the rigid cage guide and a first displacement sensor and a second displacement sensor which are connected with the fault detection device; the first displacement sensor is used for acquiring a first distance value between a probe of the first displacement sensor and the first rigid cage guide; the second displacement sensor is used for acquiring a second distance value between a probe of the second displacement sensor and the second rigid cage guide; the fault detection device is used for acquiring a first distance value and a second distance value which are acquired by the first displacement sensor and the second displacement sensor respectively, determining the sum of the first distance value, the second distance value and the third distance value as a fourth distance value between the first rigid cage guide and the second rigid cage guide, and judging whether the rigid cage guide has a target fault or not based on the relation between the fourth distance value and a preset distance value range, so that the fault detection accuracy of the rigid cage guide is improved, and the labor cost is reduced.
Description
Technical Field
The application relates to the technical field of vertical shaft lifting, in particular to a fault detection system of a rigid cage guide.
Background
The rigid cage guide is a running track of a lifting container in a vertical shaft lifting system, and has the function of limiting the swinging and the rotation of the lifting container in the horizontal direction in the lifting process of the lifting container, so that the lifting container can run stably in the vertical direction. The rigid cage guide usually has faults such as joint gaps or cage guide spacing overrun along with the increase of the service life, the faults usually affect the normal operation of mine lifting operation and even possibly cause safety accidents, and therefore fault detection of the rigid cage guide is the basis for ensuring the normal operation of the mine lifting operation.
In the prior art, a manual detection method is usually adopted to detect faults of the rigid cage guide, however, the fault detection accuracy of the manual fault detection method is low, and the labor cost is high.
Disclosure of Invention
In view of this, the embodiment of the present application provides a fault detection system for a rigid cage guide, so as to solve the technical problems that the fault detection accuracy is low and the labor cost is high due to the fact that a manual detection method is adopted to perform fault detection on the rigid cage guide in the prior art.
The embodiment of the application provides a fault detection system of rigidity cage guide, includes: the system comprises a fault detection device of the rigid cage guide, and a first displacement sensor and a second displacement sensor which are connected with the fault detection device of the rigid cage guide; the first displacement sensor and the second displacement sensor are arranged on the upper edge of the side wall of the lifting container; the lifting container is used for running along a first rigid cage guide and a second rigid cage guide which are vertically arranged; a perpendicular line between the probe of the first displacement sensor and the first rigid cage guide, a connecting line between the probe of the first displacement sensor and the probe of the second displacement sensor, and a perpendicular line between the probe of the second displacement sensor and the second rigid cage guide are on the same straight line;
the first displacement sensor is used for acquiring a first distance value between a probe of the first displacement sensor and the first rigid cage guide in the process that the lifting container runs along the rigid cage guide;
the second displacement sensor is used for acquiring a second distance value between a probe of the second displacement sensor and the second rigid cage guide in the process that the lifting container runs along the rigid cage guide;
the fault detection device of the rigid cage guide is used for acquiring the first distance value and the second distance value which are respectively acquired by the first displacement sensor and the second displacement sensor, determining the sum of the first distance value, the second distance value and the third distance value as a fourth distance value between the first rigid cage guide and the second rigid cage guide, and judging whether the rigid cage guide has a target fault or not based on the relation between the fourth distance value and a preset distance value range; wherein the third distance value is used to describe a distance between the probe of the first displacement sensor and the probe of the second displacement sensor.
Optionally, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is within the preset distance value range, determining that no target fault occurs at a position point corresponding to the target acquisition time on the rigid cage guide; the target collection time is the collection time of the first distance value and the second distance value.
Optionally, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is not within the preset distance value range, determining that a target fault occurs at a position point corresponding to the target acquisition time on the rigid cage guide; the target collection time is the collection time of the first distance value and the second distance value.
Optionally, the target fault includes an out-of-range fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is not within the preset distance value range and the fourth distance value is smaller than or equal to a first preset distance threshold, determining that the distance overrun fault occurs at a position point on the rigid cage guide corresponding to the target acquisition time; the first preset distance threshold is greater than a maximum value of two boundary values of the preset distance value range.
Optionally, the distance overrun fault includes a distance decrease fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
and if the fourth distance value is smaller than the minimum value of the two boundary values of the preset distance value range, determining that the distance reduction fault occurs at the position point corresponding to the target acquisition time on the rigid cage guide.
Optionally, the distance overrun fault includes a distance increase fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
and if the fourth distance value is larger than the maximum value of the two boundary values of the preset distance value range and is smaller than or equal to the first preset distance threshold, determining that the interval enlargement fault occurs at the position point corresponding to the target acquisition time on the rigid cage guide.
Optionally, the target fault comprises a joint clearance fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is not within the preset distance value range and is greater than a first preset distance threshold value, determining that the joint gap fault occurs at a position point on the rigid cage guide corresponding to the target acquisition time; the first preset distance threshold is greater than a maximum value of two boundary values of the preset distance value range.
Optionally, the failure detection device for the rigid cage guide is further configured to:
retrieving the third distance value from a local memory.
Optionally, the first displacement sensor and the second displacement sensor are both laser displacement sensors.
Optionally, the connection between the first displacement sensor and the fault detection device is a wireless connection; the second displacement sensor is connected with the fault detection device in a wireless mode.
The implementation of the fault detection system for the rigid cage guide provided by the embodiment of the application has the following beneficial effects:
the fault detection system of rigid cage guide that this application embodiment provided, through set up first displacement sensor and second displacement sensor on promoting the container, and make the perpendicular line between probe and the first rigid cage guide of first displacement sensor, the line between probe and the second displacement sensor of first displacement sensor and the perpendicular line between probe and the second rigid cage guide of second displacement sensor on same straight line, and gather the first distance value between probe and the first rigid cage guide of first displacement sensor through first displacement sensor, gather the first distance value between probe and the second rigid cage guide of second displacement sensor through the second displacement sensor, thereby make the fault detection device of rigid cage guide can confirm the sum of first distance value, second distance value and the third distance value between probe and the second displacement sensor of first displacement sensor as the fourth distance value between first rigid cage guide and the second rigid cage guide The distance value is obtained, whether the rigid cage guide has a target fault or not is automatically judged based on the relation between the fourth distance value and the preset distance value range, and the distance value acquired through the displacement sensor is more accurate compared with that acquired through manual visual inspection, so that compared with the existing manual fault detection method, the fault detection method provided by the embodiment of the application improves the fault detection accuracy of the rigid cage guide, and reduces the labor cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a vertical shaft hoisting system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fault detection system for a rigid cage guide according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating a relationship between a failure detection system of a rigid cage guide and a vertical shaft lifting system according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It is noted that the terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application. In the description of the embodiments of the present application, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is merely an associative relationship describing an association, meaning that there may be three relationships, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more, and "at least one", "one or more" means one, two or more, unless otherwise specified.
In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
For ease of understanding, some concepts related to the embodiments of the present application are described below.
Shafts, vertical or inclined passages cut from the ground to the ore body in mine construction, which are the main exits of the mine to the ground, are passages for lifting ore, workers, materials and equipment, etc. during mine production. In general, a vertical wellbore is called a vertical well, and an inclined wellbore is called a deviated well.
A vertical shaft lifting system is an operation system used for realizing lifting of ores, operating personnel, materials, equipment and the like in a vertical shaft. Referring to fig. 1, fig. 1 is a schematic structural diagram of a vertical shaft hoisting system according to an embodiment of the present disclosure, in which fig. 1 (a) shows a front view of the vertical shaft hoisting system, and fig. 1 (b) shows a top view of the vertical shaft hoisting system. As shown in fig. 1, the shaft hoisting system comprises: the cage guide beam 11, the first rigid cage guide 121, the second rigid cage guide 122, the hoisting container 13, the roller cage shoe 14, the wire rope 15 and the like.
The shaft guide beam 11 is a fixed rigid shaft guide in the vertical shaft lifting system, and is a cross beam arranged at certain intervals along the longitudinal direction of a vertical shaft.
The first rigid cage guide 121 and the second rigid cage guide 122, which are running rails of the lifting container 13 in the shaft lifting system, function to limit the swing and rotation of the lifting container 13 in the horizontal direction during the running process of the lifting container 13, and ensure that the lifting container 13 can run smoothly in the vertical direction.
And a wire rope 15 for pulling the hoist container 13 so that the hoist container 13 can travel up and down the first and second rigid cage guides 121 and 122.
As shown in fig. 1 (a), four roller lugs 14 may be mounted on the lifting container 13, wherein two roller lugs 14 are mounted on the upper portion of the lifting container 13, and the other two roller lugs 14 are mounted on the lower portion of the lifting container 13. In the shaft hoist system, the hoist container 13 is installed between the first rigid cage guide 121 and the second rigid cage guide 122 by the roller cage shoe 14, and travels up and down along the first rigid cage guide 121 and the second rigid cage guide 122 under the traction of the wire rope 15.
As shown in fig. 1 (a) and (b), in the shaft hoisting system, the cage guide beam 11 is arranged generally vertically to the rigid cage guide, i.e., the cage guide beam 11 is disposed generally horizontally, and the first rigid cage guide 121 and the second rigid cage guide 122 are disposed generally vertically.
Generally, the rigid cage guide has faults such as joint gaps or cage guide spacing overrun along with the increase of the service life, the faults generally affect the normal operation of mine lifting operation, and even may cause safety accidents, for example, roller cage shoes may collide with the rigid cage guide, so that a lifting container generates vibration or impact, and the like, and therefore fault detection of the rigid cage guide is a basis for ensuring the normal operation of mine lifting operation. In the prior art, a manual detection method is usually adopted to detect faults of the rigid cage guide, however, the fault detection accuracy of the manual fault detection method is low, and the labor cost is high.
Based on this, this application embodiment provides a fault detection system of rigid cage guide. Fig. 2 is a schematic structural diagram of a fault detection system for a rigid cage guide according to an embodiment of the present application. As shown in fig. 2, the fault detection system of the rigid cage guide may include: a failure detection device 21 of the rigid cage guide and a first displacement sensor 22 and a second displacement sensor 23 connected to the failure detection device 21 of the rigid cage guide.
The first displacement sensor 22 and the fault detection device 21 of the rigid cage guide may be connected by a wired connection method (for example, a serial interface or a parallel interface), or may be connected by a wireless connection method (for example, bluetooth or a wireless lan), and the connection method is not particularly limited herein.
The second displacement sensor 23 and the failure detection device 21 of the rigid cage guide may be connected by a wired connection (for example, a serial interface or a parallel interface) or by a wireless connection (for example, bluetooth or a wireless lan), and is not particularly limited herein.
In a particular application, by way of example and not limitation, the fault detection means 21 of the rigid cage guide may include, but are not limited to: smart phones, tablet computers, desktop computers, and the like. The first displacement sensor 22 and the second displacement sensor 23 may each be a laser displacement sensor.
In one embodiment of the application, as shown in fig. 3, the first displacement sensor 22 and the second displacement sensor 23 may be arranged on the upper edge of the side wall of the lifting container 13 in the shaft lifting system. In this embodiment, the shaft lifting system further includes a first rigid cage guide 121 and a second rigid cage guide 122 as the running rails of the lifting container 13. The first displacement sensor 22 is used to measure a first distance value between the probe of the first displacement sensor 22 and the first rigid cage 121, and the second displacement sensor 23 is used to measure a second distance value between the probe of the second displacement sensor 23 and the second rigid cage 122. That is, the first distance value is used to describe the shortest distance between the probe of the first displacement sensor 22 and the first rigid cage 121, and the second distance value is used to describe the shortest distance between the probe of the second displacement sensor 23 and the second rigid cage 122.
It should be noted that a perpendicular line BA between the probe of the first displacement sensor 22 and the first rigid cage guide 121, a connecting line BC between the probe of the first displacement sensor 22 and the probe of the second displacement sensor 23, and a perpendicular line CD between the probe of the second displacement sensor 23 and the second rigid cage guide 122 are on the same straight line, and the straight line is perpendicular to both the first rigid cage guide 121 and the second rigid cage guide 122. In a specific application, since the first rigid cage guide 121 and the second rigid cage guide 122 in the shaft raising system are vertically arranged, a perpendicular line BA between the probe of the first displacement sensor 22 and the first rigid cage guide 121, a connecting line BC between the probe of the first displacement sensor 22 and the probe of the second displacement sensor 23, and a perpendicular line CD between the probe of the second displacement sensor 23 and the second rigid cage guide 122 are all parallel to a horizontal line.
In this embodiment, during the process of the lifting container 13 running along the rigid cage guide (including the first rigid cage guide 121 and the second rigid cage guide 122) (for example, during the process of the lifting container 13 rising along the rigid cage guide or during the process of the lifting container 13 falling along the rigid cage guide), the first displacement sensor 22 may acquire the first distance value between the probe of the first displacement sensor 22 and the first rigid cage guide 121 in real time, and record the acquisition time of each first distance value; the second displacement sensor 23 may acquire, in real time, second distance values between the probe of the second displacement sensor 23 and the second rigid cage guide 122, and record the acquisition time of each second distance value.
For convenience of explanation, the embodiment of the present application will describe in detail a failure detection process of the rigid cage guide by taking a process of lifting the container 13 along the rigid cage guide as an example.
Specifically, when fault detection is performed on the rigid cage guide, the fault detection device 21 of the rigid cage guide may acquire the acquisition time of each first distance value and each first distance value acquired by the first displacement sensor 22, and the acquisition time of each second distance value and each second distance value acquired by the second displacement sensor 23 in the process of ascending the lifting container 13 along the rigid cage guide.
Furthermore, the failure detection device 21 of the rigid cage guide can also acquire a third distance value between the probe of the displacement sensor 22 and the probe of the second displacement sensor 23. As an example, the third distance value may be previously measured manually and stored in the local memory of the fault detection device 21 of the rigid cage guide. On this basis, the fault detection device 21 of the rigid cage guide can retrieve the third distance value from its local memory.
After the fault detection device 21 of the rigid cage guide acquires the third distance value and the first distance value and the second distance value corresponding to each collection time, the sum of the third distance value and the first distance value and the second distance value corresponding to each collection time may be respectively determined as the fourth distance value corresponding to each collection time. For example, if the third distance value is L0, the first distance value corresponding to time t1 is d1(t1), and the second distance value corresponding to time t1 is d2(t1), the fault detection device 21 for the rigid cage guide may determine that L0+ d1(t1) + d2(t1) is the fourth distance value corresponding to time t 1.
The fourth distance value corresponding to a certain collection time is used to describe a distance between a first position point on the first rigid cage guide 121 corresponding to the collection time and a second position point on the second rigid cage guide 122 corresponding to the collection time. The first position point refers to an intersection point of the light emitted from the first displacement sensor 22 to the first rigid cage guide 121 and the first rigid cage guide 121 at the time of collection, and the second position point refers to an intersection point of the light emitted from the second displacement sensor 23 to the second rigid cage guide 122 and the second rigid cage guide 122 at the time of collection. For example, if the lifting container 13 is moved to the position shown in fig. 3 at time t1, the first position point corresponding to time t1 is point a, the second position point corresponding to time t1 is point D, and the fourth distance value corresponding to time t1 is used to describe the distance between point a and point D, i.e., the length of the line segment AD.
In one embodiment of the present application, the first location point may be described by the distance between the first location point and the start of the first rigid cage guide 121; the second location point may be described by the distance between the second location point and the start of the second rigid cage guide 122. By way of example and not limitation, the starting point of the first rigid cage guide 121 may be the intersection of the first rigid cage guide 121 and the light emitted by the first displacement sensor 22 towards the first rigid cage guide 121 when the lifting container 13 is at the lowermost end of the shaft; the starting point of the second rigid shaft 122 may be the intersection of the second rigid shaft 122 and the light emitted by the second displacement sensor 23 towards the second rigid shaft 122 when the lifting container 13 is at the lowermost end of the shaft.
For example, if the lifting container 13 starts to ascend from the bottom end of the shaft along the rigid cage guide at time t0, and the ascending speed of the lifting container 13 is v1, the first position point corresponding to time t1 may be described by v1(t1-t0), and v1(t1-t0) is the distance between the first position point on the first rigid pipe 121 and the starting point of the first rigid pipe 121.
In this embodiment of the application, after the fault detection device 21 of the rigid cage guide determines the fourth distance value corresponding to each collection time, it may be determined whether a target fault occurs at a position point corresponding to each collection time on the rigid cage guide based on a relationship between the fourth distance value corresponding to each collection time and a preset distance value range.
The preset distance value range is used for describing a range where the distance between the first rigid cage guide 121 and the second rigid cage guide 122 is located when the rigid cage guide does not have a fault. The preset distance value range may be represented by two boundary values, and for example, the preset distance value range may be [ d1, d2], wherein d2> d1, d1 and d2 are two boundary values for representing the preset distance value range.
Specifically, if the fourth distance value corresponding to a certain collection time is not within the preset distance value range, the fault detection device 21 of the rigid cage guide determines that a target fault occurs at the position point on the rigid cage guide corresponding to the collection time. If the fourth distance value corresponding to a certain collection time is within the preset distance value range, the fault detection device 21 of the rigid cage guide determines that no target fault occurs at the position point on the rigid cage guide corresponding to the collection time. It should be noted that the position points corresponding to a certain collection time on the rigid cage guide include: a first position point on the first rigid cage guide 121 corresponding to the collection time and a second position point on the second rigid cage guide 122 corresponding to the collection time.
More specifically, by way of example and not limitation, the target fault may include, but is not limited to: joint clearance faults or cage guide spacing overrun faults and the like. The joint clearance fault is used for representing the distance increase phenomenon of two adjacent sections of sub-cage guides in the same rigid cage guide in the vertical direction at the joint. The spacing overrun fault is used for indicating that the spacing between the first rigid cage guide and the second rigid cage guide is not within a preset distance value range.
The pitch overrun faults may include a smaller pitch fault and a larger pitch fault. The distance reduction fault is used for indicating that the distance between the first rigid cage guide and the second rigid cage guide is reduced; the spacing increase fault is used for indicating that the spacing between the first rigid cage guide and the second rigid cage guide is increased.
It should be noted that when a joint clearance fault occurs at a first position point on first rigid cage guide 121, the first distance value corresponding to the first position point collected by first displacement sensor 22 is generally much greater than the first distance value collected by first displacement sensor 22 immediately after first rigid cage guide 121 has not failed. When a joint clearance failure occurs at a second position point on the second rigid cage guide 122, the second distance value corresponding to the second position point collected by the second displacement sensor 23 is generally much greater than the second distance value collected by the second displacement sensor 23 when the second rigid cage guide 122 is not failed. Therefore, when a joint misalignment fault or a joint clearance fault occurs at a certain position point of the rigid cage guide, the fourth distance value corresponding to the position point is usually much larger than the maximum value of the two boundary values of the preset distance value range.
Based on this, in an embodiment of the present application, if the fourth distance value corresponding to a certain collection time is not within the preset distance value range, and the fourth distance value corresponding to the collection time is less than or equal to the first preset distance threshold, the fault detection device 21 of the rigid cage guide determines that the distance overrun fault occurs at the position point on the rigid cage guide corresponding to the collection time. Furthermore, if the fourth distance value corresponding to a certain collection time is smaller than the minimum value of the two boundary values of the preset distance value range, the fault detection device 21 of the rigid cage guide determines that a gap-decreasing fault occurs at the position point corresponding to the collection time on the rigid cage guide; if the fourth distance value corresponding to a certain collection time is greater than the maximum value of the two boundary values of the preset distance value range and is less than or equal to the first preset distance threshold value, the fault detection device 21 of the rigid cage guide determines that a distance increasing fault occurs at the position point on the rigid cage guide corresponding to the collection time.
In another embodiment of the present application, if the fourth distance value corresponding to a certain collection time is not within the preset distance value range, and the fourth distance value corresponding to the collection time is greater than the first preset distance threshold, the fault detection device 21 of the rigid cage guide determines that the joint gap fault occurs at the position point on the rigid cage guide corresponding to the collection time.
As can be seen from the above, in the fault detection system of the rigid cage guide provided in this embodiment, the first displacement sensor and the second displacement sensor are arranged on the lifting container, the perpendicular line between the probe of the first displacement sensor and the first rigid cage guide, the connecting line between the probe of the first displacement sensor and the probe of the second displacement sensor, and the perpendicular line between the probe of the second displacement sensor and the second rigid cage guide are on the same straight line, the first displacement sensor is used to acquire the first distance value between the probe of the first displacement sensor and the first rigid cage guide, and the second displacement sensor is used to acquire the first distance value between the probe of the second displacement sensor and the second rigid cage guide, so that the fault detection device of the rigid cage guide can determine the sum of the first distance value, the second distance value, and the third distance value between the probe of the first displacement sensor and the probe of the second displacement sensor as the sum of the first rigid cage guide and the second rigid cage guide And whether the rigid cage guide has a target fault is automatically judged based on the relation between the fourth distance value and the preset distance value range, and the distance value acquired by the displacement sensor is more accurate than that acquired by manual visual inspection, so that compared with the existing manual fault detection method, the fault detection method provided by the embodiment of the application improves the fault detection accuracy of the rigid cage guide and reduces the labor cost.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A fault detection system for a rigid cage guide, comprising: the system comprises a fault detection device of the rigid cage guide, and a first displacement sensor and a second displacement sensor which are connected with the fault detection device of the rigid cage guide; the first displacement sensor and the second displacement sensor are arranged on the upper edge of the side wall of the lifting container; the lifting container is used for running along a first rigid cage guide and a second rigid cage guide which are vertically arranged; a perpendicular line between the probe of the first displacement sensor and the first rigid cage guide, a connecting line between the probe of the first displacement sensor and the probe of the second displacement sensor, and a perpendicular line between the probe of the second displacement sensor and the second rigid cage guide are on the same straight line;
the first displacement sensor is used for acquiring a first distance value between a probe of the first displacement sensor and the first rigid cage guide in the process that the lifting container runs along the rigid cage guide;
the second displacement sensor is used for acquiring a second distance value between a probe of the second displacement sensor and the second rigid cage guide in the process that the lifting container runs along the rigid cage guide;
the fault detection device of the rigid cage guide is used for acquiring the first distance value and the second distance value which are respectively acquired by the first displacement sensor and the second displacement sensor, determining the sum of the first distance value, the second distance value and the third distance value as a fourth distance value between the first rigid cage guide and the second rigid cage guide, and judging whether the rigid cage guide has a target fault or not based on the relation between the fourth distance value and a preset distance value range; wherein the third distance value is used to describe a distance between the probe of the first displacement sensor and the probe of the second displacement sensor.
2. The system for fault detection of a rigid cage guide according to claim 1, characterized in that said means for fault detection of a rigid cage guide are particularly adapted to:
if the fourth distance value is within the preset distance value range, determining that no target fault occurs at a position point corresponding to the target acquisition time on the rigid cage guide; the target collection time is the collection time of the first distance value and the second distance value.
3. The system for fault detection of a rigid cage guide according to claim 1, characterized in that said means for fault detection of a rigid cage guide are particularly adapted to:
if the fourth distance value is not within the preset distance value range, determining that a target fault occurs at a position point corresponding to the target acquisition time on the rigid cage guide; the target collection time is the collection time of the first distance value and the second distance value.
4. The rigid cage guide fault detection system of claim 3, wherein said target fault comprises an out-of-range fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is not within the preset distance value range and the fourth distance value is smaller than or equal to a first preset distance threshold, determining that the distance overrun fault occurs at a position point on the rigid cage guide corresponding to the target acquisition time; the first preset distance threshold is greater than a maximum value of two boundary values of the preset distance value range.
5. The rigid cage guide fault detection system of claim 4, wherein said out-of-pitch fault comprises a down-pitch fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
and if the fourth distance value is smaller than the minimum value of the two boundary values of the preset distance value range, determining that the distance reduction fault occurs at the position point corresponding to the target acquisition time on the rigid cage guide.
6. The rigid cage guide fault detection system of claim 4, wherein said out-of-pitch fault comprises an enlarged-pitch fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
and if the fourth distance value is larger than the maximum value of the two boundary values of the preset distance value range and is smaller than or equal to the first preset distance threshold, determining that the interval enlargement fault occurs at the position point corresponding to the target acquisition time on the rigid cage guide.
7. The rigid cage guide fault detection system of claim 3, wherein said target fault comprises a joint clearance fault; correspondingly, the fault detection device for the rigid cage guide is specifically configured to:
if the fourth distance value is not within the preset distance value range and is greater than a first preset distance threshold value, determining that the joint gap fault occurs at a position point on the rigid cage guide corresponding to the target acquisition time; the first preset distance threshold is greater than a maximum value of two boundary values of the preset distance value range.
8. The system for fault detection of a rigid cage guide according to any one of claims 1 to 7, wherein the fault detection device of a rigid cage guide is further configured to:
retrieving the third distance value from a local memory.
9. A rigid cage guide fault detection system as claimed in any one of claims 1 to 7 wherein said first displacement sensor and said second displacement sensor are both laser displacement sensors.
10. A system for fault detection of a rigid cage guide according to any of claims 1 to 7, wherein the connection between the first displacement sensor and the fault detection means is a wireless connection; the second displacement sensor is connected with the fault detection device in a wireless mode.
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