CN208704723U - Water immersion type scraping board slag conveyor inclination detection device - Google Patents
Water immersion type scraping board slag conveyor inclination detection device Download PDFInfo
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- CN208704723U CN208704723U CN201821565831.3U CN201821565831U CN208704723U CN 208704723 U CN208704723 U CN 208704723U CN 201821565831 U CN201821565831 U CN 201821565831U CN 208704723 U CN208704723 U CN 208704723U
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- laser
- dragveyer
- plc
- electrically connected
- receiving transducer
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Abstract
Water immersion type scraping board slag conveyor inclination detection device, including laser-correlation optoelectronic switch, power supply unit and PLC device, laser-correlation optoelectronic switch includes transmitting probe and receiving transducer, transmitting probe and receiving transducer are oppositely arranged on the outer steelframe of body lower groove oblique ascension section two sides of dragveyer by different mounting brackets respectively, the laser of transmitting probe transmitting is parallel to the top surface for not tilting scraper plate, the laser of transmitting probe transmitting is lower than the top surface for not tilting scraper plate and is higher than the bottom surface for not tilting scraper plate, receiving transducer is electrically connected with PLC device, transmitting probe and receiving transducer are electrically connected with the both ends of power supply unit respectively, PLC device is electrically connected with the synchronous rotational speed sensor for the upper directive wheel for being installed on dragveyer.When detection after the chain breakage of the prior art is transferred to the inclination of chain breakage front scrapping plate by the utility model, apparatus structure is simple, can effectively detect inclination, prevent chain breakage.
Description
Technical field
The utility model relates to a kind of water immersion type scraping board slag conveyor inclination detection devices.
Background technique
Water immersion type scraping board slag conveyor (hereinafter referred to as dragveyer) is by body, hydraulic motor, tensioning, upper and lower directive wheel, chain
The composition such as scraper plate and electrical control cabinet.Breaker is equipped in electrical control cabinet, the breaker of dragveyer is set to the motor of dragveyer
Between the working power of dragveyer.Body is divided into upper groove body horizontal segment and oblique ascension section and body lower groove horizontal segment and oblique ascension
Section.Main transmission section drives upper directive wheel using hydraulic motor, and can realize stepless speed regulation by hydraulic station variable frequency pump.Chain
Compact form is hydraulic automatic tensioner, auto-tensioning can be achieved under the action of constant pressure, and guarantee the constant of tensioning state, makes chain
In suitable elastic working condition.Upper and lower directive wheel is equipped with rolling bearing, is equipped with synchronization on upper guiding wheel shaft
Rotation-speed measuring device.Lower directive wheel is equipped with chain breakage protection device.Dragveyer chain use garden ring chain (φ 34 × 136), scraper plate with
The connection of chain scrapes plate holder using plug-in type.
In order to detect whether dragveyer chain is broken, one is installed on directive wheel under dragveyer tail portion mostly in the prior art
Broken chain detecting device is covered, the broken chain detecting device is because (working environment is severe at lower directive wheel, there is clinker and boiler water for installation site
Water shutoff) reliability is not high, and the device can only can just detect after dragveyer chain is already off, and cannot be disconnected in chain
Preceding offer early warning.The main reason for dragveyer chain breakage, has, and chain slot, scraper plate side on upper directive wheel take off from chain
Out, the length variation between the chain of wear tension both sides increases chain in the process of running, so that inclination, if cannot be timely
It was found that and handle, both sides chain can be broken because of unbalance stress.
Do not occurred the inclination detection device of water immersion type scraping board slag conveyor in the prior art.
Utility model content
The technical problems to be solved in the utility model is to overcome drawbacks described above of the existing technology, provides a kind of structure
Simply, inclination can be effectively detected, the water immersion type scraping board slag conveyor inclination detection device of chain breakage is prevented.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
Water immersion type scraping board slag conveyor inclination detection device, including laser-correlation optoelectronic switch, power supply unit and PLC dress
It sets, laser-correlation optoelectronic switch includes transmitting probe and receiving transducer, and the transmitting probe of laser-correlation optoelectronic switch and reception are visited
Head is oppositely arranged on the outer steelframe of body lower groove oblique ascension section two sides of dragveyer by different mounting brackets respectively, laser
The top surface for not tilting scraper plate, the transmitting of laser-correlation optoelectronic switch are parallel to the laser that the transmitting probe for penetrating optoelectronic switch emits
The laser of probe transmitting is lower than the top surface for not tilting scraper plate and is higher than the bottom surface for not tilting scraper plate, and laser-correlation optoelectronic switch connects
Receive probe be electrically connected with PLC device, the transmitting probe and receiving transducer of laser-correlation optoelectronic switch respectively with power supply unit two
End electrical connection, PLC device are electrically connected with the synchronous rotational speed sensor for the upper directive wheel for being installed on dragveyer；PLC device also with position
In in the electrical control cabinet of dragveyer breaker be connected, breaker be set to dragveyer motor and dragveyer working power it
Between.
Further, the power supply unit is preferably direct current 24V power supply.
Further, the PLC device includes PLC controller, on-off value data acquisition device, analog quantity data acquisition unit and opens
Data logger is measured in pass, and on-off value data acquisition device, analog quantity data acquisition unit are electrically connected with PLC controller, PLC controller
It is electrically connected with switching value data follower, the receiving transducer of laser-correlation optoelectronic switch and the on-off value data acquisition of PLC device
Device electrical connection.PLC controller is existing mature controller, can be shared with the existing PLC controller of dragveyer.Switching value data is adopted
Storage, analog quantity data acquisition unit, switching value data follower are existing mature device, therefore in this not go into detail.
Further, the PLC device also can be used DCS system to substitute, and DCS system is existing mature control system, such as Nanjing
Section far automates the NT6000 etc. of limited liability company's production.
Further, the analog quantity data acquisition unit of the PLC device turns with the synchronous of upper directive wheel for being installed on dragveyer
Fast sensor electrical connection.
Further, the switching value data follower of the PLC device is electrically connected with warning device, and warning device can be buzzing
Device etc..
Electrical control cabinet, breaker, hydraulic motor and the motor of dragveyer are existing mature equipment, therefore herein no longer in detail
Carefully repeat.The switching value data follower of PLC device is connected with the breaker in the electrical control cabinet for being located at dragveyer, breaker
For receiving the dragveyer trip signal of PLC controller sending.
The radius r of directive wheel is stored in PLC controller, not inclined scraper plate connects by laser-correlation optoelectronic switch
The length a and predetermined inclination of scraper plate cross section protect definite value L when receiving probe.The π of formula V=2 is stored in PLC controller*r*n、
T=a/V、L0=V*(t-T)=V*(t- a/V)=V*t- a=2π*r*n*T- a, V indicate the chain linear velocity of dragveyer, and T is indicated
Time required for receiving transducer when the non-run-off the straight of scraper plate by laser-correlation optoelectronic switch, L0Indicate that scraper plate is moved in chain
The dynamic inclined distance in direction.
Laser-correlation optoelectronic switch is for detecting passing through for scraper plate, when scraper plate passes through laser-correlation optoelectronic switch, scraper plate
The laser that the transmitting probe of laser-correlation optoelectronic switch is issued is sheltered from, the receiving transducer of laser-correlation optoelectronic switch can not be felt
Laser signal should be arrived；The receiving transducer of other time laser-correlation optoelectronic switch can then sense laser signal, and laser is believed
It number is sent to on-off value data acquisition device and forms pulse signal, PLC controller return pulse signal, and obtained according to pulse signal
Scraper plate is t by the time of receiving transducer.PLC controller is existing according to the time that pulse signal show that scraper plate passes through receiving transducer
There is mature technology.As pulse signal be rectangular pulse when, scraper plate by receiving transducer time t be equal to pulse period subtract arteries and veins
It is wide.
Synchronous rotational speed sensor is used to measure the revolving speed n of directive wheel, and revolving speed n is transmitted through analog quantity data acquisition unit
To PLC controller.
As previously mentioned, being previously stored with the radius r of directive wheel, not inclined scraper plate in PLC controller by laser pair
The length a and predetermined inclination of scraper plate cross section protect definite value L when penetrating the receiving transducer of optoelectronic switch.Predetermined inclination protects definite value L
It can be set according to actual conditions by user.When scraper plate run-off the straight, PLC controller passes through the time t of receiving transducer according to scraper plate
With the formula L stored in the revolving speed n and PLC controller of upper directive wheel0= 2π*r*n*It is mobile in chain to obtain scraper plate by t- a
The inclined distance L in direction0, and L will be obtained0It is compared with predetermined inclination pre-stored in PLC controller protection definite value L, if
L0> L, PLC controller issue dragveyer trip signal and are transferred in the electrical control cabinet of dragveyer through switching value data follower
Breaker, breaker disconnects, and so that the motor of dragveyer is lost the job power supply, dragveyer stops working, and prevents because of inclination
Caused by dragveyer chain rupture；Meanwhile PLC controller sends alarm enabling signal and is transferred to alarm dress through switching value data follower
It sets, warning device issues alarm signal, reminds operator's dragveyer that there are chain rupture risks.
Predetermined inclination protection definite value L can be set according to actual conditions by user.
When detection after the chain breakage of the prior art is transferred to the inclination of chain breakage front scrapping plate by the utility model, device
Structure is simple, can effectively detect inclination, prevent chain breakage.The transmitting probe and receiving transducer of laser-correlation optoelectronic switch
It is oppositely arranged on the outer steelframe of body lower groove oblique ascension section two sides of dragveyer, rather than fished out by different mounting brackets respectively
On the lower directive wheel of slag drive end unit, the working environment of probe is preferable, and functional reliability is high.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model laser-correlation optoelectronic switch and the assembling of existing dragveyer；
Fig. 2 is the chain and scraper plate assembling schematic diagram of existing dragveyer；
Fig. 3 is the schematic diagram of the utility model water immersion type scraping board slag conveyor inclination detection device；
Fig. 4 is the electrical connection diagram of the utility model PLC device and receiving transducer, synchronous rotational speed sensor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The specific structure of existing dragveyer is as depicted in figs. 1 and 2, and existing dragveyer includes body lower groove oblique ascension section 5, machine
Body upper groove body oblique ascension section 3, body lower groove horizontal segment 7 and body upper groove body horizontal segment 6, the left side of body lower groove oblique ascension section 5,
The left side in the left side of body upper groove body oblique ascension section 3, the left side of body lower groove horizontal segment 7 and body upper groove body horizontal segment 6 is equipped with
Chain 9-1, the right side of body lower groove oblique ascension section 5, the right side of body upper groove body oblique ascension section 3, body lower groove horizontal segment 7 the right side
Side and the right side of body upper groove body horizontal segment 6 are equipped with another chain 9-2, are equipped with scraper plate 12, the head end of two chains between two chains
It is equipped with directive wheel 4, the end of two chains is equipped with lower directive wheel 2, and upper directive wheel 4 is connected with hydraulic motor 11, hydraulic horse
It is connected up to 11 with the hydraulic pump of dragveyer, hydraulic pump is connected to the motor.Hydraulic pump is driven to generate pressure oil-source, pressure by motor
Oil enters hydraulic motor, and hydraulic motor 11 drives two chains and scraper plate 12 to move by upper directive wheel 4.In Fig. 1, further it is shown that Gu
Determine guide wheel 8, tensioning apparatus 1.Because of the existing mature equipment of dragveyer, therefore no longer excessive herein repeat.
Reference Fig. 3 and Fig. 4, water immersion type scraping board slag conveyor inclination detection device, including laser-correlation optoelectronic switch 10,
Power supply unit 13 and PLC device 14, laser-correlation optoelectronic switch 10 include transmitting probe 10-1 and receiving transducer 10-2, laser pair
The transmitting probe 10-1 and receiving transducer 10-2 for penetrating optoelectronic switch are opposite by different mounting bracket (not shown)s respectively
The transmitting of laser-correlation optoelectronic switch (referring to Fig. 1) is set on the outer steelframe of 5 two sides of body lower groove oblique ascension section of dragveyer
The laser of probe 10-1 transmitting, which is parallel to, does not tilt the scraper plate 12 i.e. top surface of normal walking scraper plate, the hair of laser-correlation optoelectronic switch
The laser for penetrating probe 10-1 transmitting is lower than the top surface for not tilting scraper plate 12 and is higher than the bottom surface for not tilting scraper plate 12, laser-correlation light
The receiving transducer 10-2 of electric switch is electrically connected with PLC device 14, and the transmitting probe 10-1 of laser-correlation optoelectronic switch and reception are visited
Head 10-2 is electrically connected with the both ends of power supply unit 13 respectively, and PLC device 14 turns with the synchronous of upper directive wheel 4 for being installed on dragveyer
Fast sensor 17 is electrically connected；PLC device 14 also be located at dragveyer electrical control cabinet (not shown) in breaker 15
It is connected, breaker 15 is set between the motor (not shown) of dragveyer and the working power (not shown) of dragveyer.
In the present embodiment, the power supply unit 13 is direct current 24V power supply.
In the present embodiment, the PLC device 14 includes PLC controller 14-1, on-off value data acquisition device 14-2, analog quantity
Data collector 14-3 and switching value data follower 14-4, on-off value data acquisition device 14-2, analog quantity data acquisition unit 14-
3 are electrically connected with PLC controller 14-1, and PLC controller 14-1 is electrically connected with switching value data follower 14-4, laser-correlation light
The receiving transducer 10-2 of electric switch is electrically connected with the on-off value data acquisition device 14-2 of PLC device.PLC controller is existing maturation
Controller can be shared with the existing PLC controller of dragveyer.On-off value data acquisition device 14-2, analog quantity data acquisition unit 14-
3, switching value data follower 14-4 is also existing mature equipment, therefore in this not go into detail, as current version is M1104
On-off value data acquisition device, the analog quantity data acquisition unit of model LW MA7108C, model DDMF1-8D0 switching value number
According to follower.
In the present embodiment, the PLC device also can be used DCS system to substitute, and DCS system is existing mature control system, such as
Nanjing section far automates the NT6000 etc. of limited liability company's production.
In the present embodiment, the upper directive wheel 4 of the analog quantity data acquisition unit 14-3 and dragveyer of the PLC device 14
Synchronous rotational speed sensor 17 is electrically connected.
In the present embodiment, the switching value data follower 14-4 of the PLC device 14 is electrically connected with warning device 16, alarm
Device 16 can be buzzer etc..
In the present embodiment, electrical control cabinet, breaker, hydraulic motor and the motor of dragveyer are existing mature equipment,
Therefore in this not go into detail.The switching value data follower 14-4 of PLC device be located at dragveyer electrical control cabinet in
Breaker 15 is connected, and breaker 15 is used to receive the dragveyer trip signal of PLC controller 14-1 sending.
The radius r of directive wheel 4 is stored in PLC controller 14-1, not inclined scraper plate 12 passes through laser-correlation photoelectricity
The length a and predetermined inclination of scraper plate cross section protect definite value L when the receiving transducer 10-2 of switch.Public affairs are stored in PLC controller
Formula V=2 π*r*n、T=a/V、L0=V*(t-T)=V*(t- a/V)=V*t- a=2π*r*n*T- a, V indicate the chain line of dragveyer
Time required for receiving transducer when speed, T indicate scraper plate non-run-off the straight by laser-correlation optoelectronic switch, L0Expression is scraped
Plate is in the inclined distance of chain moving direction.In Fig. 3, label 12 indicates the scraper plate of normal walking, and 12 indicate inclined scraper plate.
Laser-correlation optoelectronic switch 10 is used to detect scraper plate 12 or 12 passes through, when scraper plate 12 or 12 passes through laser-correlation
When optoelectronic switch, scraper plate 12 or 12 shelters from the laser that the transmitting probe 10-1 of laser-correlation optoelectronic switch is issued, laser pair
The receiving transducer 10-2 for penetrating optoelectronic switch can not sense laser signal；The receiving transducer of other time laser-correlation optoelectronic switch
10-2 can then sense laser signal, and laser signal is sent to on-off value data acquisition device 14-2 and forms pulse signal, PLC
Controller 14-1 return pulse signal, and show that scraper plate 12 or 12 is by the time of receiving transducer 10-2 according to pulse signal
t.PLC controller 14-1 is existing mature skill according to the time that pulse signal show that scraper plate 12 or 12 passes through receiving transducer 10-2
Art.As pulse signal be rectangular pulse when, scraper plate 12 or 12 by receiving transducer 10-2 time t be equal to pulse period subtract
Go pulsewidth.
Synchronous rotational speed sensor 17 is used to measure the revolving speed n of directive wheel 4, and by revolving speed n through analog quantity data acquisition unit
14-3 is transferred to PLC controller 14-1.
As previously mentioned, being previously stored with the radius r of directive wheel 4 in PLC controller 14-1, not inclined scraper plate 12 passes through
The length a and predetermined inclination of scraper plate cross section protect definite value L when the receiving transducer 10-2 of laser-correlation optoelectronic switch.It is default
Unequal protection definite value L can be set according to actual conditions by user.When scraper plate run-off the straight, PLC controller is according to scraper plate by connecing
Receive the formula L stored in the time t of probe and the revolving speed n and PLC controller of upper directive wheel0= 2π*r*n*T- a, is inclined
Oblique scraper plate 12 is in the inclined distance L of chain moving direction0, and L will be obtained0It is preset with pre-stored in PLC controller 14-1
Unequal protection definite value L is compared, if L0> L, PLC controller 14-1 issue dragveyer trip signal and export through switching value data
Device 14-4 is transferred to the breaker 15 in the electrical control cabinet of dragveyer, and breaker 15 disconnects, and the motor of dragveyer is made to lose work
Make power supply, dragveyer stops working, dragveyer chain rupture caused by preventing because of inclination；Meanwhile PLC controller sends alarm and opens
Dynamic signal is transferred to warning device 16 through switching value data follower 14-4, and warning device 16 sends alarm signal, reminds operation
There are chain rupture risks for person's dragveyer.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (6)
1. water immersion type scraping board slag conveyor inclination detection device, which is characterized in that including laser-correlation optoelectronic switch, for Denso
It sets and PLC device, laser-correlation optoelectronic switch includes transmitting probe and receiving transducer, the transmitting probe of laser-correlation optoelectronic switch
It is oppositely arranged on the outer steel of the body lower groove oblique ascension section two sides of dragveyer by different mounting brackets respectively with receiving transducer
On frame, the laser of the transmitting probe transmitting of laser-correlation optoelectronic switch is parallel to the top surface for not tilting scraper plate, laser-correlation photoelectricity
The laser of the transmitting probe transmitting of switch is lower than the top surface for not tilting scraper plate and is higher than the bottom surface for not tilting scraper plate, laser-correlation light
The receiving transducer of electric switch is electrically connected with PLC device, the transmitting probe and receiving transducer of laser-correlation optoelectronic switch respectively with confession
The both ends of electric installation are electrically connected, and PLC device is electrically connected with the synchronous rotational speed sensor for the upper directive wheel for being installed on dragveyer；PLC
Device is also connected with the breaker in the electrical control cabinet for being located at dragveyer, motor and dragveyer of the breaker set on dragveyer
Between working power.
2. water immersion type scraping board slag conveyor inclination detection device according to claim 1, which is characterized in that the power supply
Device is direct current 24V power supply.
3. water immersion type scraping board slag conveyor inclination detection device according to claim 1 or 2, which is characterized in that described
PLC device includes PLC controller, on-off value data acquisition device, analog quantity data acquisition unit and switching value data follower, switch
Amount data collector, analog quantity data acquisition unit are electrically connected with PLC controller, PLC controller and switching value data follower
Electrical connection, the receiving transducer of laser-correlation optoelectronic switch are electrically connected with the on-off value data acquisition device of PLC device.
4. water immersion type scraping board slag conveyor inclination detection device according to claim 3, which is characterized in that the PLC
The analog quantity data acquisition unit of device is electrically connected with the synchronous rotational speed sensor for the upper directive wheel for being installed on dragveyer.
5. water immersion type scraping board slag conveyor inclination detection device according to claim 3, which is characterized in that the PLC
The switching value data follower of device is electrically connected with warning device.
6. water immersion type scraping board slag conveyor inclination detection device according to claim 3, which is characterized in that the PLC
The switching value data follower of device is connected with the breaker in the electrical control cabinet for being located at dragveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565831.3U CN208704723U (en) | 2018-09-26 | 2018-09-26 | Water immersion type scraping board slag conveyor inclination detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565831.3U CN208704723U (en) | 2018-09-26 | 2018-09-26 | Water immersion type scraping board slag conveyor inclination detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704723U true CN208704723U (en) | 2019-04-05 |
Family
ID=65947632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821565831.3U Expired - Fee Related CN208704723U (en) | 2018-09-26 | 2018-09-26 | Water immersion type scraping board slag conveyor inclination detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208704723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174223A (en) * | 2019-12-31 | 2020-05-19 | 华电电力科学研究院有限公司 | Deviation and stalling alarm device of plate-type slag conveyor and control method of deviation and stalling alarm device |
-
2018
- 2018-09-26 CN CN201821565831.3U patent/CN208704723U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174223A (en) * | 2019-12-31 | 2020-05-19 | 华电电力科学研究院有限公司 | Deviation and stalling alarm device of plate-type slag conveyor and control method of deviation and stalling alarm device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190405 Termination date: 20190926 |