CN211768305U - Automatic tensioning device for chain of voice recognition scraper conveyor - Google Patents
Automatic tensioning device for chain of voice recognition scraper conveyor Download PDFInfo
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- CN211768305U CN211768305U CN201922346499.2U CN201922346499U CN211768305U CN 211768305 U CN211768305 U CN 211768305U CN 201922346499 U CN201922346499 U CN 201922346499U CN 211768305 U CN211768305 U CN 211768305U
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Abstract
A sound recognition scraper conveyor chain automatic tensioning device comprises a liquid discharge mechanism, a liquid supply mechanism, a control center and a machine tail actuating mechanism, wherein the machine tail actuating mechanism is provided with a displacement monitoring device and a tension monitoring device, and a machine tail arc-shaped chain pressing plate is provided with a sound recognition device; and the control center receives data of the displacement monitoring device, the tension monitoring device and the voice recognition device, and performs logic analysis and judgment according to the data, and finally controls the tail actuating mechanism to push the tail frame to slide. This application control tail frame and headstock between distance to the realization is to the elasticity tension control of chain, has guaranteed that scraper conveyor chain can be safe and reliable's operation above that, has prolonged the life of relevant mechanical part like chain, sprocket, tooth cover, scraper blade etc. simultaneously, and has reduced unnecessary frictional force, has practiced thrift certain electric energy, really realizes tail unmanned on duty, has guaranteed mining personnel's life safety, thereby improves the working property and the work efficiency of complete machine.
Description
Technical Field
The utility model relates to a coal mine machinery technical field, especially a sound identification scraper conveyor chain automatic tensioning device and control method thereof.
Background
At present, mineral products produced by a coal mine scraper conveyor and a reversed loader are upwards conveyed to a ground warehouse through a belt conveyor, and as for system composition, the mineral products are generally composed of a headstock, a tailstock, a scraper conveyor chain and other parts, and along with the change of working condition terrain and the change of triangular coal at the head and the tail of a cutting machine, the distance between a chain wheel on the headstock and a chain wheel on the tailstock can be changed, so that the tension of the chain is changed, mechanical faults are easily caused, the service lives of the chain, the chain wheel, a gear sleeve, a scraper and the like are reduced, the working performance of the whole machine is influenced, a series of serious safety accidents can be caused, and the working efficiency of mining is influenced.
The traditional automatic tensioning generally has four detection modes: firstly, a detection mechanism represented by German DBT has pressure displacement and motor current detection, and has the defect that the engine tail frame is blocked, or the friction force of the engine tail frame is increased due to gangue blockage of the engine tail frame, so that the engine tail frame cannot work normally; secondly, the representative or near switch of the United states JOY participates in the detection, and the defects are as follows: the proximity switch has too short detection distance, too poor temperature resistance, no wear resistance and too high damage rate; thirdly, the detection of JOY or stress sheets in the United states has the defects of poor shock resistance and temperature resistance and high damage rate; fourthly, the domestic part is detected by image recognition, and the defects are as follows: for caving, or bottom coal coverage at tail return; the dust amount of the tail of the machine is too large; no image is visible; it cannot be used effectively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide one kind and can keep scraper conveyor's chain tension suitable, increase of service life, improve work efficiency's automatic overspeed device tensioner of voice recognition scraper conveyor chain.
The utility model aims to solve the technical problem that realize through following technical scheme, a sound identification scraper conveyor chain automatic tensioning device, its characteristics are: the tail end monitoring device comprises a tail end executing mechanism for pushing a tail frame of the scraper conveyor to move along a sliding groove, wherein a displacement monitoring device and a tension monitoring device are arranged in the tail end executing mechanism, and a sound recognition device is arranged on a tail end arc-shaped chain pressing plate of the scraper conveyor; the displacement monitoring device, the tension monitoring device and the voice recognition device are respectively connected with a control center through signal lines, the control center is respectively connected with the liquid draining mechanism and the liquid supply mechanism through signal lines, and the liquid draining mechanism and the liquid supply mechanism are both connected with the tail execution mechanism;
the displacement monitoring device is arranged in the tail actuating mechanism, monitors the tail displacement and transmits the displacement data to the control center;
the tension monitoring device is arranged in the tail actuating mechanism, monitors the pressure value of the tail oil cylinder and transmits the pressure value data to the control center;
the voice recognition device is arranged on the tail arc-shaped chain pressing plate, directly recognizes the tightness of the tail chain and transmits voice recognition data to the control center;
the control center is arranged on the scraper conveyor, collects data of the displacement monitoring device, the tension monitoring device and the sound recognition device, performs logic analysis and judgment according to the data, sends a command to the liquid discharge mechanism or the liquid supply mechanism, and then controls the tail execution mechanism to push the tail frame to slide, so that the distance between a chain wheel on the headstock and a chain wheel on the tail frame is changed, the tightness tension value of a chain is adjusted, and the stable and reliable operation of the chain of the whole scraper conveyor and the chain of the reversed loader is ensured;
after receiving the command of the control center, the liquid draining mechanism completes the action of draining the liquid from the tail executing mechanism;
and the liquid supply mechanism completes the liquid supply action of the tail execution mechanism after receiving the command of the control center.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, tail actuating mechanism be the pneumatic cylinder.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, displacement monitoring device be displacement sensor.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, tension monitoring device be tension sensor.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, the sound identification device be the sound identification sensor.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, drainage mechanism, supply liquid mechanism be electromagnetism valves.
Compared with the prior art, the utility model, utilize control center to gather the data of displacement monitoring devices, tension monitoring devices and sound identification device and carry out relevant logic analysis and judgement, final control tail actuating mechanism promotes the tailstock to slide, makes the distance between sprocket and the tailstock sprocket on the headstock change, thereby reaches the purpose of adjusting the scraper conveyor chain to suitable tension, guarantees the steady reliable operation of whole scraper conveyor; the liquid draining mechanism is used for receiving a command of the control center and finishing the action of draining the liquid from the tail executing mechanism; receiving a command of a control center by using the liquid supply mechanism to complete the action of supplying liquid to the tail execution mechanism; the utility model discloses a tension of scraper conveyor chain is adjusted to the distance between adjustment headstock sprocket and the tailstock sprocket, make the chain keep at suitable tension, guarantee that scraper conveyor chain can reliable and stable operation, make colliery scraper conveyor transportation system can reliable and stable serve in production, the life of relevant mechanical parts like chain, the sprocket, the tooth cover, the scraper blade has been prolonged simultaneously, thereby improve the working property and the work efficiency of whole scraper conveyor, the cost is reduced, really realize unmanned on duty automation.
Drawings
FIG. 1 is a schematic diagram of the electrical control of the present invention;
fig. 2 is a schematic diagram of a voice recognition apparatus.
Detailed Description
The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
A sound recognition scraper conveyor chain automatic tensioning device comprises a tail actuating mechanism used for pushing a tail frame of a scraper conveyor to move along a sliding groove, wherein a displacement monitoring device and a tension monitoring device are arranged in the tail actuating mechanism, and a sound recognition device is arranged on a tail arc-shaped pressing chain plate of the scraper conveyor; the displacement monitoring device, the tension monitoring device and the voice recognition device are respectively connected with a control center through signal lines, the control center is respectively connected with the liquid draining mechanism and the liquid supply mechanism through signal lines, and the liquid draining mechanism and the liquid supply mechanism are both connected with the tail execution mechanism;
the displacement monitoring device is arranged in the tail actuating mechanism, monitors the tail displacement and transmits the displacement data to the control center;
the tension monitoring device is arranged in the tail actuating mechanism, monitors the pressure value of the tail oil cylinder and transmits the pressure value data to the control center;
the voice recognition device is arranged on the tail arc-shaped chain pressing plate, directly recognizes the tightness of the tail chain and transmits voice recognition data to the control center;
the control center is arranged on the scraper conveyor, collects data of the displacement monitoring device, the tension monitoring device and the sound recognition device, performs logic analysis and judgment according to the data, sends a command to the liquid discharge mechanism or the liquid supply mechanism, and then controls the tail execution mechanism to push the tail frame to slide, so that the distance between a chain wheel on the headstock and a chain wheel on the tail frame is changed, the tightness tension value of a chain is adjusted, and the stable and reliable operation of the chain of the whole scraper conveyor and the chain of the reversed loader is ensured;
after receiving the command of the control center, the liquid draining mechanism completes the action of draining the liquid from the tail executing mechanism;
and the liquid supply mechanism completes the liquid supply action of the tail execution mechanism after receiving the command of the control center.
The tail actuating mechanism is a hydraulic cylinder.
The displacement monitoring device is a displacement sensor.
The tension monitoring device is a tension sensor.
The voice recognition device is a voice recognition sensor.
The liquid discharging mechanism and the liquid supplying mechanism are electromagnetic valve groups.
Electromagnetic valve group and control center all install on scraper conveyor, fixed sliding tray sets up on scraper conveyor's bottom plate along material direction of delivery, tail actuating mechanism installs and promotes the tailstock on scraper conveyor's bottom plate and slide along fixed sliding tray, tail actuating mechanism is equipped with liquid supply mouth and drain port, the liquid supply mouth meets through the solenoid valve of pipeline with the liquid supply mechanism, the drain port meets through the solenoid valve of pipeline with the drain mechanism, the electromagnetic valve group meets with the pneumatic cylinder, the electromagnetic valve group all installs in tail actuating mechanism with displacement monitoring device and tension monitoring device, the control center circuit meets with displacement monitoring device, tension monitoring device, the electromagnetic valve group of drain mechanism and liquid supply mechanism respectively.
The control method of the automatic chain tensioning device of the voice recognition scraper conveyor comprises the following steps:
(1) setting a tension value: setting a tension value range of a tail execution structure when the scraper conveyor and the reversed loader chain work normally;
(2) data feedback:
a, when the actual working tension of the tail actuating mechanism is larger than the upper limit value of a set tension value range, feeding data back to a control center by a displacement monitoring device, a tension monitoring device and a sound recognition device, calculating by the control center through the collected displacement, tension data and data of the sound recognition device, and controlling a liquid discharge mechanism to discharge liquid, wherein the tail actuating mechanism drives a tail frame to slide inwards along a sliding groove, so that the distance between a headstock chain wheel and a tail frame chain wheel is reduced, the chain tension is reduced, and the chain tension requirement is met; meanwhile, the control center monitors the working displacement and the working tension of the tail actuating mechanism in real time through the displacement monitoring mechanism, the tension monitoring mechanism and the voice recognition device, and when the real-time monitored tension value is smaller than or equal to the upper limit value of the set tension value range, the control center controls the liquid discharge mechanism to be closed;
b, when the actual working tension of the tail actuating mechanism is smaller than the upper limit value of the set tension value range, the tension monitoring device and the sound recognition device feed data back to the control center, the control center controls the liquid supply mechanism to supply liquid after calculating through the displacement of the displacement monitoring device, and the tail actuating mechanism drives the tail frame to slide outwards along the sliding groove, so that the distance between the headstock chain wheel and the tail frame chain wheel is increased, the chain tension is increased, and the chain tension requirement is met; meanwhile, the control center monitors the working tension and the working displacement of the tail actuating mechanism in real time through the tension monitoring mechanism and the displacement monitoring mechanism, and when the tension value monitored in real time is larger than or equal to the lower limit value of the set tension value range, the control center controls the liquid supply mechanism to be closed;
c, when the data of the voice recognition device is larger than or equal to the upper limit value, the control center controls the tail execution mechanism to drain liquid until reaching the intermediate value of the data of the voice recognition device, and the step (1) is returned to execute; and (3) when the data of the voice recognition device is less than or equal to the lower limit value, the control center controls the tail execution mechanism to supply liquid until the data of the voice recognition device reaches the middle value, and the step (1) is returned to execute.
And (3) when the control center controls the liquid supply mechanism to supply liquid to the tail execution mechanism in the step (2), the control center judges and protects the liquid supply times and whether the liquid supply is overtime, so that the chain is prevented from being broken due to excessive liquid supply.
And (3) when the control center controls the liquid draining mechanism to drain the tail actuating mechanism in the step (2), the control center judges and protects the liquid draining times and whether the liquid draining is overtime, and chain accumulation and chain stacking caused by excessive liquid draining are prevented.
Claims (6)
1. The utility model provides a sound identification scraper conveyor chain automatic tensioning device which characterized in that: the tail end monitoring device comprises a tail end executing mechanism for pushing a tail frame of the scraper conveyor to move along a sliding groove, wherein a displacement monitoring device and a tension monitoring device are arranged in the tail end executing mechanism, and a sound recognition device is arranged on a tail end arc-shaped chain pressing plate of the scraper conveyor; the displacement monitoring device, the tension monitoring device and the voice recognition device are respectively connected with a control center through signal lines, the control center is respectively connected with the liquid draining mechanism and the liquid supply mechanism through signal lines, and the liquid draining mechanism and the liquid supply mechanism are both connected with the tail execution mechanism;
the displacement monitoring device is arranged in the tail actuating mechanism, monitors the tail displacement and transmits the displacement data to the control center;
the tension monitoring device is arranged in the tail actuating mechanism, monitors the pressure value of the tail oil cylinder and transmits the pressure value data to the control center;
the voice recognition device is arranged on the tail arc-shaped chain pressing plate, directly recognizes the tightness of the tail chain and transmits voice recognition data to the control center;
the control center is arranged on the scraper conveyor, collects data of the displacement monitoring device, the tension monitoring device and the sound recognition device, performs logic analysis and judgment according to the data, sends a command to the liquid discharge mechanism or the liquid supply mechanism, and then controls the tail execution mechanism to push the tail frame to slide, so that the distance between a chain wheel on the headstock and a chain wheel on the tail frame is changed, the tightness tension value of a chain is adjusted, and the stable and reliable operation of the chain of the whole scraper conveyor and the chain of the reversed loader is ensured;
after receiving the command of the control center, the liquid draining mechanism completes the action of draining the liquid from the tail executing mechanism;
and the liquid supply mechanism completes the liquid supply action of the tail execution mechanism after receiving the command of the control center.
2. The voice recognition face conveyor chain automatic tensioning device of claim 1, wherein: the tail actuating mechanism is a hydraulic cylinder.
3. The voice recognition face conveyor chain automatic tensioning device of claim 1, wherein: the displacement monitoring device is a displacement sensor.
4. The voice recognition face conveyor chain automatic tensioning device of claim 1, wherein: the tension monitoring device is a tension sensor.
5. The voice recognition face conveyor chain automatic tensioning device of claim 1, wherein: the voice recognition device is a voice recognition sensor.
6. The voice recognition face conveyor chain automatic tensioning device of claim 1, wherein: the liquid discharging mechanism and the liquid supplying mechanism are electromagnetic valve groups.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922346499.2U CN211768305U (en) | 2019-12-24 | 2019-12-24 | Automatic tensioning device for chain of voice recognition scraper conveyor |
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| CN201922346499.2U CN211768305U (en) | 2019-12-24 | 2019-12-24 | Automatic tensioning device for chain of voice recognition scraper conveyor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086836A (en) * | 2019-12-24 | 2020-05-01 | 连云港天明装备有限公司 | Automatic chain tensioning device of voice recognition scraper conveyor and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086836A (en) * | 2019-12-24 | 2020-05-01 | 连云港天明装备有限公司 | Automatic chain tensioning device of voice recognition scraper conveyor and control method thereof |
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