CN114252260A - Double-chain asynchronous deviation automatic detection system and detection method - Google Patents
Double-chain asynchronous deviation automatic detection system and detection method Download PDFInfo
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- CN114252260A CN114252260A CN202210028193.6A CN202210028193A CN114252260A CN 114252260 A CN114252260 A CN 114252260A CN 202210028193 A CN202210028193 A CN 202210028193A CN 114252260 A CN114252260 A CN 114252260A
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Abstract
The invention provides a double-chain asynchronous deviation automatic detection system and a double-chain asynchronous deviation automatic detection method, wherein the double-chain asynchronous deviation automatic detection system comprises a controller, an incremental pulse encoder, a display screen and a plurality of pitch groups, each pitch group is uniformly arranged in the extending direction of a chain, each pitch group comprises a first pitch, a second pitch and a swing rod for connecting the first pitch and the second pitch, and the first pitch and the second pitch are respectively arranged on chains at two sides and are opposite; setting a pitch group as a first pitch group, wherein the first pitch and the second pitch of the first pitch group are both provided with initial detection brackets with detection heads, and two wallboards close to the two chains are both provided with initial proximity switches; two ends of the swing rod are provided with detection characteristic points, and two opposite detection proximity switches are arranged on the two wallboards; the incremental pulse encoder is opposite to the driving motor, and the initial proximity switch, the detection proximity switch, the incremental pulse encoder and the display screen are respectively and electrically connected with the controller. The invention can automatically detect out-of-sync deviation and improve efficiency.
Description
Technical Field
The invention belongs to the technical field of engineering machinery manufacturing, and particularly relates to a double-chain asynchronous deviation automatic detection system and a double-chain asynchronous deviation automatic detection method.
Background
In the existing engineering machinery manufacturing, a product conveying system usually relates to a double-chain driving conveying system or a double-belt driving conveying system, namely, a set of driving motors are adopted to drive double chains or double belts and other equipment to convey products between processes for corresponding value-added work. However, in the long-term operation of such a conveying system, the asynchronous accumulated deviation of the double chains or the double belts is larger and larger due to the factors such as the material, the deformation, the mutual abrasion, the deformation of the rails, and the lack of the lubricating oil, and the like, and the maintenance is required by a maintainer.
Aiming at the problem of asynchronous accumulated deviation, in the prior art, a special measuring tool is firstly manufactured, then a maintainer is arranged to measure the sizes of double chains or double belts between working procedures and on the total length regularly, then the working procedure deviation and the total length deviation are obtained through measurement data analysis, the deviations are respectively compared with corresponding deviation standards, and whether equipment needs to be adjusted and maintained is determined, so that overlarge deviation is prevented, and the danger of product disconnection is avoided.
The existing asynchronous deviation detection of double chains adopts a manual measurement mode, and special measurement tools need to be manufactured aiming at different double-chain drive conveying systems, and the tools have no universality; meanwhile, manual measurement is adopted, and measurement can be performed only when the equipment stops running, so that the measurement period is long, the workload is large, and the efficiency is not high. Therefore, how to design an automatic detecting system and a detecting method for asynchronous deviation of double chains to realize automatic detection of the deviation so as to avoid the above problems becomes a technical problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide an automatic double-chain asynchronous deviation detection system to solve the technical problems in the prior art. The invention also provides a detection method.
In order to achieve the purpose, the invention provides the following technical scheme:
a double-chain asynchronous deviation automatic detection system comprises a controller, an incremental pulse encoder, a display screen and a plurality of pitch groups, wherein each pitch group is uniformly arranged in the extending direction of a chain, each pitch group comprises a first pitch, a second pitch and a swing rod, the first pitch is arranged on the chain on one side, the second pitch is arranged on the chain on the other side, and the first pitch and the second pitch are oppositely arranged; the first pitch and the second pitch are connected through the swing rod; setting one pitch group as a first pitch group, wherein an initial detection bracket is arranged on a first pitch and a second pitch of the first pitch group, initial proximity switches are arranged on two wall plates close to the two chains, and a detection head for the initial proximity switches to identify is arranged on the initial detection bracket; detection characteristic points are arranged at two ends of the swing rod, two opposite detection proximity switches are arranged on the two wallboards, and the two detection proximity switches are respectively used for identifying the two detection characteristic points; the detection proximity switch is arranged close to the initial proximity switch, and the initial proximity switch and the detection proximity switch are respectively and electrically connected with the controller; the incremental pulse encoder is opposite to a driving motor for driving the two chains to run, and the incremental pulse encoder and the display screen are respectively and electrically connected with the controller.
Preferably, the device further comprises an alarm, and the alarm is electrically connected with the controller.
Preferably, the alarm is a buzzer.
Preferably, the alarm is an audible and visual alarm.
Preferably, the display screen is a touch display screen.
A detection method based on the double-chain asynchronous deviation automatic detection system comprises the following steps:
s1, operating the double chains, firstly identifying the detection head on the initial detection bracket by the initial proximity switch, and naming each section of chain between every two adjacent swing rods by the controller according to the detection head, so that the measured data correspond to each section of chain one by one;
s2, recognizing the detection characteristic points at the two ends of the swing rods by the two detection proximity switches, and starting to record the pulse number of the encoder by the controller and counting the pulse number of the encoder between the two adjacent swing rods; then, simulating and calculating the distance between two adjacent oscillating bars, namely the length of two chains between the two adjacent oscillating bars; the controller compares the distance with a set value to compare out asynchronous deviation of chains on two sides between two adjacent oscillating bars, and displays a comparison result on a display screen;
s3, by analogy, measuring from the swing rods of the first pitch group, respectively measuring the distances between every two adjacent swing rods, and displaying all comparison results on a display screen in real time through a controller;
s4, the controller compares the distances between all two adjacent swing rods with the total set value to obtain the total deviation of the chains at two sides in the whole length, and the comparison result is displayed through the display screen.
Preferably, when the comparison result is not in the set range, the controller gives an alarm through the alarm and controls the double-chain conveying system to stop.
Preferably, when the comparison result is not in the set range, a warning character is displayed on the display screen.
The invention has the beneficial effects that:
the double-chain asynchronous deviation automatic detection system can automatically detect asynchronous deviation data of double chains in real time and analyze and feed back the asynchronous deviation data, does not need stopping the double-chain driving conveying system, and does not need manual measurement, thereby greatly reducing the workload and the measurement time and further greatly improving the measurement efficiency; meanwhile, the detection system can be suitable for different double-chain or double-belt driving conveying systems, so that the detection system has better universality. The detection method of the present invention also has the above-described advantageous effects.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein
FIG. 1 is a schematic view of a side chain according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an incremental pulse encoder provided in an embodiment of the present invention during installation.
In the drawings, the reference numbers:
11. a first pitch, 12, a detection head, 21, a swing rod, 22, a detection characteristic point,
31. an initial proximity switch, 32, a detection proximity switch, 41, a side chain,
51. incremental pulse encoder 52, mounting bracket 61 and driving motor.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides an automatic double-chain asynchronous deviation detection system, which includes a controller, an incremental pulse encoder 51, a display screen, and a plurality of pitch groups, wherein each pitch group is uniformly arranged in an extending direction of a chain, the pitch group includes a first pitch 11, a second pitch, and a swing link 21, the first pitch is arranged on a chain 41 on one side, the second pitch is arranged on a chain on the other side, and the first pitch 11 is arranged opposite to the second pitch; the first pitch and the second pitch are connected through the swing rod 21; setting one pitch group as a first pitch group, wherein an initial detection bracket is arranged on a first pitch and a second pitch of the first pitch group, initial proximity switches 31 are arranged on two wall plates close to two chains, and a detection head 12 for the initial proximity switches to identify is arranged on the initial detection bracket; detection characteristic points 22 are arranged at two ends of the swing rod, two opposite detection proximity switches 32 are arranged on the two wallboards, and the two detection proximity switches are respectively used for identifying the two detection characteristic points; the detection proximity switch is arranged close to the initial proximity switch, and the initial proximity switch and the detection proximity switch are respectively and electrically connected with the controller; the incremental pulse encoder is opposite to a driving motor for driving the two chains to run, and the incremental pulse encoder and the display screen are respectively and electrically connected with the controller.
The double-chain asynchronous deviation automatic detection system provided by the embodiment of the invention can automatically detect the asynchronous deviation data of the double chains in real time and analyze and feed back the asynchronous deviation data, does not need the stopping of a double-chain driving conveying system and does not need manual measurement, thereby greatly reducing the workload and the measurement time and further greatly improving the measurement efficiency. Meanwhile, the detection system can be suitable for different double-chain or double-belt driving conveying systems, so that the detection system has better universality.
Further, this asynchronous deviation automatic check out system of double-chain still includes the alarm, the alarm with the controller electricity is connected to when detecting asynchronous deviation of double-chain and not being in the settlement scope, can begin to report to the police through controller control alarm, so that in time remind the operative employee to handle. It will be appreciated that the incremental pulse encoder 51 may be connected to the drive motor attachment mount by a mounting bracket 52; because the parts arranged on the chains at two sides are oppositely arranged, the parts arranged on the chain at the other side are the same as the parts arranged on the chain at one side in the figure 1.
Specifically, the alarm is a buzzer.
Preferably, the alarm is an audible and visual alarm.
Further, the display screen is a touch display screen.
The embodiment of the invention also provides a detection method based on the double-chain asynchronous deviation automatic detection system, which comprises the following steps:
s1, operating the double chains, firstly identifying the detection head 12 on the initial detection bracket by the initial proximity switch 31, and naming each section of chain between every two adjacent swing rods by the controller according to the identification head 12, so that the measured data correspond to each section of chain one by one;
s2, recognizing the detection characteristic points 22 at the two ends of the swing rod 21 by the two detection proximity switches 32, starting to record the pulse number of the encoder by the controller, and counting the pulse number of the encoder between two adjacent swing rods, namely counting the pulse number sent by the encoder in the time period between the detection characteristic point recognized by the detection proximity switch on one swing rod and the detection characteristic point recognized by the detection proximity switch on the next adjacent swing rod; then, simulating and calculating the distance between two adjacent oscillating bars 21, namely the length of two chains between two adjacent oscillating bars 21; the controller compares the distance with a set value to compare out the asynchronous deviation of the chains at two sides between two adjacent oscillating bars, namely the asynchronous deviation of the chains at two sides on the chain between two adjacent oscillating bars, and displays the comparison result on a display screen;
s3, by analogy, measuring from the swing rods 21 of the first pitch group, respectively measuring the distances between every two adjacent swing rods 21, and displaying all comparison results on a display screen in real time through a controller; it can be understood that the asynchronous deviation of each chain section on the two sides can be obtained by comparison;
s4, the controller compares the distances between all the two adjacent swing rods 21 with the total set value to compare the total deviation of the chains at the two sides in the whole length, and the comparison result is displayed through the display screen.
In one embodiment, when the comparison result is not in the set range, the controller gives an alarm through the alarm and controls the double-chain conveying system to stop so that an operator can process the comparison result in time.
In another embodiment, when the comparison result is not within the set range, a warning character is displayed on the display screen.
It will be appreciated that a certain pitch group may be set to pitch group number one as desired. It may be preferred that the controller is a PLC controller. The detection system and the detection method are also suitable for the double-belt driving conveying system; preferably, the distance data and the comparison result can be derived for statistical analysis by maintenance personnel, so that the total deviation of the chains or the belts on the two sides can be fed back, and the single deviation of the chains or the belts on the two sides between the two adjacent swing rods can also be analyzed.
In the detection system, each circle of the incremental pulse encoder can have more than 1000 pulses; the controller calculates the distance between the chains or belts at two sides between two adjacent swing rods through a calculation model such as multiplying the pulse number by the sawtooth precision according to the counted pulse number when the detection proximity switch identifies the detection characteristic points on the two adjacent swing rods 21 and the sawtooth precision of the incremental pulse encoder, so that the asynchronous deviation of the chains or belts at two sides in the section between the two adjacent swing rods, namely the section length, is compared.
The detection system can automatically detect deviation data in real time and analyze feedback; the method adopts a set of encoder and a plurality of pairs of proximity switches to realize the detection of the asynchronous deviation of double chains or double belts; the deviation and the total deviation between the working procedures are calculated through simulation of a controller and are fed back to maintenance personnel through a display screen to be used as a diagnosis basis; the method and the system have the advantages that the analysis on the deviation data is accurate and reliable, maintenance personnel can conveniently judge the running state of the equipment, the maintenance plan of the equipment is made in advance, and the normal running of the equipment is ensured.
The invention can be applied to product lines of double-chain or double-belt driving conveying systems adopted in various industries, and asynchronous deviation needs to be monitored in real time in order to ensure that products are accurately conveyed to a specified position, so that timely maintenance is facilitated, and normal operation of equipment is ensured.
The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
Claims (8)
1. The double-chain asynchronous deviation automatic detection system is characterized by comprising a controller, an incremental pulse encoder, a display screen and a plurality of pitch groups, wherein each pitch group is uniformly arranged in the extending direction of a chain, each pitch group comprises a first pitch, a second pitch and a swing rod, the first pitch is arranged on the chain on one side, the second pitch is arranged on the chain on the other side, and the first pitch and the second pitch are oppositely arranged; the first pitch and the second pitch are connected through the swing rod; setting one pitch group as a first pitch group, wherein an initial detection bracket is arranged on a first pitch and a second pitch of the first pitch group, initial proximity switches are arranged on two wall plates close to the two chains, and a detection head for the initial proximity switches to identify is arranged on the initial detection bracket; detection characteristic points are arranged at two ends of the swing rod, two opposite detection proximity switches are arranged on the two wallboards, and the two detection proximity switches are respectively used for identifying the two detection characteristic points; the detection proximity switch is arranged close to the initial proximity switch, and the initial proximity switch and the detection proximity switch are respectively and electrically connected with the controller; the incremental pulse encoder is opposite to a driving motor for driving the two chains to run, and the incremental pulse encoder and the display screen are respectively and electrically connected with the controller.
2. The system according to claim 1, further comprising an alarm electrically connected to said controller.
3. The system for automatically detecting asynchronous deviation of double chains according to claim 2, wherein the alarm is a buzzer.
4. The system for automatically detecting asynchronous deviation of double chains according to claim 2, wherein the alarm is an audible and visual alarm.
5. The system for automatically detecting asynchronous deviation of double chains according to any one of claims 1 to 4, wherein the display screen is a touch display screen.
6. A detection method of an automatic detection system for asynchronous deviation of double chains based on claim 1, characterized in that it comprises the following steps:
s1, operating the double chains, firstly identifying the detection head on the initial detection bracket by the initial proximity switch, and naming each section of chain between every two adjacent swing rods by the controller according to the detection head, so that the measured data correspond to each section of chain one by one;
s2, recognizing the detection characteristic points at the two ends of the swing rods by the two detection proximity switches, and starting to record the pulse number of the encoder by the controller and counting the pulse number of the encoder between the two adjacent swing rods; then, simulating and calculating the distance between two adjacent oscillating bars, namely the length of two chains between the two adjacent oscillating bars; the controller compares the distance with a set value to compare out asynchronous deviation of chains on two sides between two adjacent oscillating bars, and displays a comparison result on a display screen;
s3, by analogy, measuring from the swing rods of the first pitch group, respectively measuring the distances between every two adjacent swing rods, and displaying all comparison results on a display screen in real time through a controller;
s4, the controller compares the distances between all two adjacent swing rods with the total set value to obtain the total deviation of the chains at two sides in the whole length, and the comparison result is displayed through the display screen.
7. The detection method according to claim 6, wherein when the comparison result is not in the set range, the controller gives an alarm through the alarm and controls the double-chain conveying system to stop.
8. The detection method according to claim 6, wherein when the comparison result is not within the set range, a warning word is displayed on the display screen.
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| CN111099458A (en) * | 2020-01-08 | 2020-05-05 | 新疆农业大学 | Double-chain transmission synchronism monitoring device and double-chain transmission fault detection method of film collecting machine |
| CN214269145U (en) * | 2020-11-23 | 2021-09-24 | 株洲天桥舜臣选煤机械有限责任公司 | Multi-chain operation monitoring mechanism |
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- 2022-01-11 CN CN202210028193.6A patent/CN114252260B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001232531A (en) * | 2000-02-22 | 2001-08-28 | Toshiba Mach Co Ltd | Device and method for detecting chain elongation |
| JP2002370816A (en) * | 2001-06-13 | 2002-12-24 | Fuji Electric Co Ltd | Position-synchronized controller |
| CN102167222A (en) * | 2011-03-24 | 2011-08-31 | 神龙汽车有限公司 | Transmission double-chain synchronism monitoring method and device |
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