CN218825265U - Trolley cable take-up system detection device - Google Patents
Trolley cable take-up system detection device Download PDFInfo
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- CN218825265U CN218825265U CN202222569067.XU CN202222569067U CN218825265U CN 218825265 U CN218825265 U CN 218825265U CN 202222569067 U CN202222569067 U CN 202222569067U CN 218825265 U CN218825265 U CN 218825265U
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- trolley
- cable
- cable drum
- detection device
- photoelectric
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Abstract
The utility model provides a detection device of a trolley cable take-up system, wherein the take-up system comprises a cable drum with a reflecting piece uniformly fixed on the surface; the detection device comprises a photoelectric detection component; the detection surface of the photoelectric detection assembly faces the cable drum; when the cable drum is in a rolling state, the trolley power cable is stored, and meanwhile, the light reflection of the light reflection piece on the surface of the cable drum forms an optical signal which can be detected by the photoelectric detection assembly due to the rotation of the cable drum; the utility model discloses can in time survey cable drum operating condition and survey dolly power cable and accomodate the condition when the travelling bogie operation is rolled up to the aluminium, can effectively reduce equipment operation risk, prevent the fault amplification, improve production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the photoelectric technology and specifically relates to dolly cable take-up system detection device.
Background
Finished aluminum coils at an outlet of the aluminothermic finish rolling are unloaded and moved by using a transport trolley, wherein the trolley transports the aluminum coils back and forth in a fixed track, and a power cable of the trolley applies tension to a cable winding drum through a chain by a torque motor, so that the cable of the trolley extends or is recovered along with the movement of the trolley in the back and forth movement process, and the cable is prevented from scattering on a roller way of the trolley on the ground and being crushed. However, if the torque motor is abnormal and cannot provide tension or a chain between the motor and the cable drum falls off, the cable cannot be effectively recovered, and finally the cable scattered on the track is broken by the transport trolley. Because the transport trolleys all run automatically, production operators cannot find and stop the trolleys in time under the condition of failure, and the cable is damaged and the shutdown rush-repair machine line cannot produce the trolley, so that the loss is large.
Against this background, it is necessary to develop a device capable of detecting the working condition of the cable drum and detecting the cable storage condition in time.
Disclosure of Invention
The utility model provides a dolly cable take-up system detection device can in time survey cable drum operating mode and survey dolly power cable and accomodate the condition when the travelling bogie operation is rolled up to the aluminium, can effectively reduce equipment operation risk, prevents the fault amplification, improves production efficiency.
The utility model adopts the following technical scheme.
The trolley cable take-up system detection device is characterized in that the take-up system comprises a cable drum with a surface uniformly fixed with a light reflecting piece; the detection device comprises a photoelectric detection component; the detection surface of the photoelectric detection assembly faces the cable drum; when the cable drum is in a rolling state, the power cable of the trolley is stored, and meanwhile, the light reflected by the light reflecting piece on the surface of the cable drum forms an optical signal which can be detected by the photoelectric detection assembly due to the rotation of the cable drum.
The light reflecting pieces are a plurality of light reflecting plates which are uniformly distributed on the side surface of the cable drum according to a radial layout; the photoelectric detection assembly comprises a light output end and a light receiving end of the photoelectric sensor; the cable drum is fixed at the running track of the trolley, when the cable drum rotates, the light at the light output end of the photoelectric sensor is reflected to the light receiving end discontinuously by the reflector, and the discontinuous reflected light is an optical signal indicating that the cable drum is normally wound.
The trolley is an aluminum coil transfer trolley which runs at the fixed track back and forth; the cable is a trolley power cable wound at the cable drum; the cable drum is driven by a torque motor through a chain, and the torque motor applies tension to a trolley power cable through the cable drum so as to prevent the cable from falling on a track surface; the photoelectric detection assembly is supported by a sensor bracket at the running track of the trolley.
The photoelectric detection assembly is connected with the alarm device, and when the trolley runs, if the photoelectric detection assembly does not receive an optical signal indicating that the cable drum is normally wound within a preset time period, the alarm device outputs alarm information indicating that the cable drum does not rotate.
The photoelectric detection assembly is connected with the trolley travelling mechanism, and when the trolley runs, if the photoelectric detection assembly does not receive an optical signal indicating that the cable drum normally takes up the cable within a preset time period, the trolley travelling mechanism stops the trolley running and locks the position of the trolley.
The photoelectric sensor is connected with a PLC of the trolley advancing mechanism, when the cable drum rotates, if light at the optical output end of the photoelectric sensor irradiates the reflector, the reflected light of the reflector is received by the optical receiving end, so that the photoelectric sensor outputs a high-level signal to the PLC, and if the light at the optical output end of the photoelectric sensor does not irradiate the reflector, the photoelectric sensor outputs a low-level signal to the PLC.
When the PLC receives the rising edge of the high level signal of the photoelectric sensor and the change process of the low level signal of the photoelectric sensor changing to the high level signal, the PLC records the position data of the trolley at the running track according to the laser ranging sensor of the trolley, and then calculates the difference between the recorded position of the trolley and the actual position recorded by the trolley cable drum encoder in real time.
When the PLC receives the rising edge of the high-level signal of the photoelectric sensor and the change process of the low-level signal of the photoelectric sensor changing to the high-level signal, and the difference value between the position recorded by the trolley and the actual position of the trolley is within the allowable range, the PLC judges that the current operation working condition of the cable drum is normal.
When the absolute value of the difference between the actual position of the trolley and the recorded data displayed by the trolley laser ranging sensor is larger than the threshold value, the PLC judges that the cable storage state of the cable drum is abnormal, and outputs a control signal for stopping the movement of the trolley.
When the PLC judges that the cable storage state of the cable drum is abnormal and outputs a control signal for stopping the trolley to move, an alarm signal for prompting an operator to check the trolley cable and the cable drum on site is displayed on the PLC human-computer interaction interface HMI.
The utility model provides a dolly cable is received line system detection device, the device can detect the dolly operation in-process, and whether cable drum rotates the judgement, and whether the cable is successfully retrieved. If the trolley moves and the cable drum of the trolley does not rotate, the cable is judged not to be recovered, the trolley is interlocked after the model is processed by the PLC, the trolley stops running, and alarm information is displayed on a picture through the HMI computer to prompt an operator that the trolley cable is recovered abnormally. Operators check whether the trolley cable is normal on site, if the cable is abnormal, the cable can be processed in time, and the alarm can be reset after the cable is abnormal. The device can effectively reduce the operation risk of equipment, prevent fault amplification and improve the production efficiency.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1-trolley power cables; 2-a cable drum; 3-a reflector; 4-a photodetecting assembly; 5-PLC; 6-human-machine interaction interface HMI.
Detailed Description
As shown in the figure, the trolley cable take-up system detection device comprises a cable drum 2 with a surface uniformly fixed with a light reflecting piece; the detection device comprises a photoelectric detection component 4; the detection surface of the photoelectric detection assembly faces the cable drum; when the cable drum is in a rolling state, the trolley power cable 1 is stored, and meanwhile, the light reflected by the light reflecting piece on the surface of the cable drum forms an optical signal which can be detected by the photoelectric detection assembly due to the rotation of the cable drum.
The light reflecting pieces are a plurality of light reflecting plates 3 which are uniformly distributed on the side surface of the cable drum according to a radial layout; the photoelectric detection assembly comprises a light output end and a light receiving end of the photoelectric sensor; the cable drum is fixed at the running track of the trolley, when the cable drum rotates, the light at the light output end of the photoelectric sensor is reflected to the light receiving end discontinuously by the reflector, and the discontinuous reflected light is an optical signal indicating that the cable drum is normally wound.
The trolley is an aluminum coil transfer trolley which runs at the fixed track back and forth; the cable is a trolley power cable wound at the cable drum; the cable drum is driven by a torque motor through a chain, and the torque motor applies tension to a trolley power cable through the cable drum so as to prevent the cable from falling on a track surface; the photoelectric detection assembly is supported by a sensor bracket at the running track of the trolley.
The photoelectric detection assembly is connected with the alarm device, and when the trolley runs, if the photoelectric detection assembly does not receive an optical signal indicating that the cable drum is normally wound within a preset time period, the alarm device outputs alarm information indicating that the cable drum does not rotate.
The photoelectric detection assembly is connected with the trolley advancing mechanism, and when the trolley runs, if the photoelectric detection assembly does not receive an optical signal indicating that the cable drum is normally wound within a preset time length, the trolley advancing mechanism stops the running of the trolley and locks the position of the trolley.
The photoelectric sensor is connected with a PLC5 of the trolley advancing mechanism, when the cable drum rotates, if light at the light output end of the photoelectric sensor irradiates the reflector, reflected light of the reflector is received by the light receiving end, so that the photoelectric sensor outputs a high-level signal to the PLC, and if the light at the light output end of the photoelectric sensor does not irradiate the reflector, the photoelectric sensor outputs a low-level signal to the PLC.
When the PLC receives the rising edge of the high level signal of the photoelectric sensor and the change process of the low level signal of the photoelectric sensor changing to the high level signal, the PLC records the position data of the trolley at the running track according to the laser ranging sensor of the trolley, and then calculates the difference between the recorded position of the trolley and the actual position recorded by the trolley cable drum encoder in real time.
When the PLC receives the rising edge of the high-level signal of the photoelectric sensor and the change process of the low-level signal of the photoelectric sensor changing to the high-level signal, and the difference value between the position recorded by the trolley and the actual position of the trolley is within the allowable range, the PLC judges that the current operation working condition of the cable drum is normal.
When the absolute value of the difference value between the actual position of the trolley and the recorded data displayed by the trolley laser ranging sensor is larger than the threshold value, the PLC judges that the cable storage state of the cable reel is abnormal, and outputs a control signal for stopping the movement of the trolley.
When the PLC judges that the cable storage state of the cable drum is abnormal and outputs a control signal for stopping the trolley to move, an alarm signal for prompting an operator to check the trolley cable and the cable drum on site is displayed on the PLC human-computer interaction interface HMI 6.
The embodiment is as follows:
in this example, the reflector is installed on the side of the cable drum of the trolley, and 8 reflectors are installed, the photoelectric sensor is installed on the support and used for detecting the reflector on the side of the drum, if the sensor light irradiates on the reflector, the high level is output, and if the sensor light does not irradiate on the reflector, the low level is output.
The level signal of the sensor is connected into the PLC through a cable, and in the PLC program, when the rising edge of the photoelectric sensor is received and the process of changing from low level to high level is carried out, the winding drum is judged to normally run, and the actual position information of the transport trolley at the moment is immediately recorded. The real-time position of the trolley is subtracted from the recorded position, and the absolute value is obtained as a result, so that the deviation between the real-time position of the trolley and the last recorded position can be obtained. When the trolley moves, the cable drum does not rotate abnormally, namely the cable is not recovered, the recorded position cannot be updated, and the deviation becomes very large, namely the cable possibly has the possibility of being loosened and dropped due to non-timely recovery.
When the deviation is larger than the set safety range, the cable is rolled by the trolley for preventing the cable from excessively sagging, the PLC outputs an OFF signal to stop the movement of the trolley, and outputs alarm information on an HMI computer picture to prompt an operator to check the cable and the cable drum of the trolley on site.
In the embodiment, the sensor signal is connected into the PLC and processed to form interlocking protection for the operation of the cable take-up reel and the trolley, and relevant alarm is fed back to an HMI computer picture. Therefore, whether the cable is normally wound up in the running process of the trolley is detected, if the winding up is abnormal, the trolley stops running and alarm information is output on an HMI picture, an operator is prompted to detect whether the cable winding up system of the trolley normally runs, and the situation that the trolley runs and loses tension and is scattered on a trolley track to break due to abnormal winding up caused by the fact that the cable is not wound back is prevented.
Claims (6)
1. Trolley cable take-up system detection device, its characterized in that: the take-up system comprises a cable drum with a light reflecting piece uniformly fixed on the surface; the detection device comprises a photoelectric detection component; the detection surface of the photoelectric detection assembly faces the cable drum; when the cable drum is used for accommodating the trolley power cable, the reflection of the reflection piece on the surface of the cable drum is an optical signal which can be detected by the photoelectric detection assembly when the cable drum rotates.
2. The trolley cable take-up system detection device as claimed in claim 1, wherein: the light reflecting pieces are a plurality of light reflecting plates which are uniformly distributed on the side surface of the cable drum according to a radial layout; the photoelectric detection assembly comprises a light output end and a light receiving end of the photoelectric sensor; the cable drum is fixed at the running track of the trolley, and when the cable drum rotates, the light at the light output end of the photoelectric sensor is reflected to the light receiving end discontinuously by the reflector.
3. The trolley cable take-up system detection device as claimed in claim 2, wherein: the trolley is an aluminum coil transfer trolley which runs at the fixed track back and forth; the cable is a trolley power cable wound at the cable drum; the cable drum is driven by a torque motor through a chain, and the torque motor applies tension to a power cable of the trolley through the cable drum so as to prevent the cable from falling on a track surface; the photoelectric detection assembly is supported by a sensor bracket at the running track of the trolley.
4. The trolley cable take-up system detection device as claimed in claim 2, wherein: the photoelectric detection component is connected with the alarm device.
5. The trolley cable take-up system detection device as claimed in claim 2, wherein: the photoelectric detection assembly is connected with the trolley advancing mechanism.
6. The trolley cable take-up system detection device as claimed in claim 2, wherein: and the photoelectric sensor is connected with a PLC of the trolley advancing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569067.XU CN218825265U (en) | 2022-09-28 | 2022-09-28 | Trolley cable take-up system detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569067.XU CN218825265U (en) | 2022-09-28 | 2022-09-28 | Trolley cable take-up system detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218825265U true CN218825265U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222569067.XU Active CN218825265U (en) | 2022-09-28 | 2022-09-28 | Trolley cable take-up system detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218825265U (en) |
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2022
- 2022-09-28 CN CN202222569067.XU patent/CN218825265U/en active Active
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