CN-224211783-U - Automatic loading and unloading position control detection device for freight cableway carrying hopper

Abstract

The utility model provides an automatic loading and unloading position control detection device for a freight cableway carrying hopper, which adopts a magnetic induction switch device to carry out position detection, has accurate and reliable signals, improves the transportation efficiency of the freight cableway, fully ensures the transportation production capacity, comprises a permanent magnet arranged on a carrying hopper suspender and a magnetic induction switch detection device arranged at a loading and unloading station, wherein the magnetic induction switch detection device comprises at least two magnetic induction switch detection probes corresponding to the permanent magnet, the detection probes are connected with a PLC control system through double-layer shielding cables, aviation plugs are arranged at the connection positions of the detection probes and the cables, the detection probes are arranged on an insulating mounting seat with a double-nut fixing structure, the magnetic induction switch detection probes are in redundant configuration, and a plurality of detection probes are arranged at intervals in the vertical direction of the insulating mounting seat to form a multichannel signal detection structure.

Inventors

• PU XIAOHONG
• QIN YONGJUN
• LI XIAOMING
• Tang Xinbing

Assignees

• 四川川矿索道工程有限责任公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (10)

1. 1. The automatic loading and unloading position control detection device for the freight cableway carrying hopper is characterized by comprising a permanent magnet arranged on a carrying hopper suspender and a magnetic induction switch detection device arranged at a loading and unloading station, wherein the magnetic induction switch detection device comprises at least two magnetic induction switch detection probes corresponding to the permanent magnet, the detection probes are connected with a PLC control system through double-layer shielded cables, an aviation plug is arranged at the joint of the detection probes and the cables, and the detection probes are arranged on an insulating mounting seat with a double-nut fixing structure.
2. 2. The automatic loading and unloading position control detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the magnetic induction switch detection probes are in redundant configuration, and a plurality of detection probes are arranged at intervals in the vertical direction of the insulating mounting seat to form a multichannel signal detection structure.
3. 3. The automatic loading and unloading position control detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the insulating mounting seat is provided with an axial fine adjustment groove, the detection probe is fixed on the mounting seat through a double-nut locking structure, and the double nuts adopt locknylon nuts.
4. 4. The automatic loading and unloading position control detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the permanent magnet is an N52-grade sintered NdFeB magnet, a nickel-copper-nickel three-layer composite coating is arranged on the surface of the permanent magnet, the magnet is directly inserted into a magnet mounting seat with a buckle structure, and epoxy resin sealant is filled in a gap of the magnet mounting seat.
5. 5. The automatic loading and unloading position control detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the outer layer of the double-layer shielding cable is sleeved with a metal corrugated hose, a cable shielding layer is arranged in the metal corrugated hose, and the cable shielding layer adopts a composite shielding structure of a copper mesh weaving layer and an aluminum foil layer.
6. 6. The automatic loading and unloading position control and detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the aviation plug is an M12 aviation plug connector, and the plug-in part is filled with epoxy resin sealant.
7. 7. The automatic loading and unloading position control detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the magnetic induction switch detection probe is provided with a composite protective shell, and the composite protective shell comprises an aluminum alloy heat dissipation substrate and a polycarbonate heat preservation cover.
8. 8. The automatic loading and unloading position control and detection device for the freight transportation cableway carrying hopper according to claim 1, wherein the insulating mounting base comprises an insulating hanging rod and an insulating mounting base, the top of the insulating hanging rod is connected with a loading and unloading station, the middle part of the insulating hanging rod horizontally extends towards the carrying hopper hanging rod, the bottom of the insulating hanging rod is provided with a vertical mounting plate, and the insulating mounting base is fixed in a mounting space formed by the middle extending plate of the insulating hanging rod and the mounting plate.
9. 9. The automatic loading and unloading position control and detection device for the freight transportation cableway carrying hopper according to claim 8, wherein the insulating assembly seat is made of polytetrafluoroethylene materials, an anti-slip tooth structure is arranged on the mounting surface of the insulating assembly seat, and M8 standard mounting hole sites are arranged at two ends of the insulating assembly seat to fix the insulating assembly seat on the insulating suspender.
10. 10. The automatic loading and unloading position control detection device for the freight ropeway carrying hopper according to any one of claims 1-9, wherein the installation distance between the permanent magnet and the magnetic induction switch detection probe is 50+/-2 mm, and the magnetic induction intensity detection threshold is 80 mT+/-5 mT.

Description

Automatic loading and unloading position control detection device for freight cableway carrying hopper Technical Field The utility model relates to the technical field of automatic control of freight ropeway, in particular to an automatic loading and unloading position control and detection device for a freight ropeway carrying hopper. Background The automatic loading and unloading position control detection device for the freight cableway carrying hopper is an important device for normal production operation of the freight cableway, when the carrying hopper runs to a loading and unloading point, materials need to be accurately stopped, the loading point is filled into the carrying hopper through a feeder, the carrying hopper automatically turns over and unloads at the unloading point, the carrying hopper runs in place at the loading point, the materials cannot be filled into the carrying hopper, the feeder works to cause the materials to be thrown and piled, the carrying hopper runs in place at the unloading point, the carrying hopper cannot unload, or the carrying hopper cannot completely unload into a discharging bin, and the materials are thrown and piled, so that the normal operation of the whole cableway system is affected under the conditions. The traditional freight cableway carrying hopper position detection commonly adopts a mechanical travel switch, and has the following defects: 1. The mechanical contact is easy to wear, the service life of the conventional switch is only 5-10 ten thousand times, and frequent replacement and maintenance are required; 2. In an open air environment, a metal contact is easy to be corroded by rain and snow, so that poor contact is caused, and the contact is easy to be blocked in a dust environment; 3. The accuracy of the switch action position is limited by a mechanical structure, and the repeated positioning error reaches +/-10 mm; 4. The whole switch assembly needs to be disassembled during maintenance, and the single maintenance time is longer than 30 minutes. The prior improvement scheme attempts to adopt a photoelectric sensor or a laser ranging device and an ultrasonic ranging sensor, but the following problems exist in the dust environment generated by ore loading and unloading: 1. Dust causes pollution of an optical window, and the false detection rate is up to 15%; 2. the laser ranging accuracy is obviously reduced under strong light interference; 3. the protection level of the sensor is insufficient, and the failure rate exceeds 8 times/year. Disclosure of utility model The utility model aims to provide an automatic loading and unloading position control detection device for a freight cableway carrying hopper, which adopts a magnetic induction switching device to carry out position detection, has accurate and reliable signal, improves the transportation efficiency of the freight cableway and fully ensures the transportation production capacity. Embodiments of the present utility model are implemented as follows: The automatic loading and unloading position control detection device for the freight cableway carrying hopper comprises a permanent magnet arranged on a carrying hopper suspender and a magnetic induction switch detection device arranged at a loading and unloading station, wherein the magnetic induction switch detection device comprises at least two magnetic induction switch detection probes corresponding to the permanent magnet, the detection probes are connected with a PLC control system through double-layer shielding cables, an aviation plug is arranged at the joint of the detection probes and the cables, and the detection probes are arranged on an insulation mounting seat with a double-nut fixing structure. In a preferred embodiment of the present utility model, the magnetic induction switch detection probes are in a redundant configuration, and a plurality of detection probes are arranged at intervals in a vertical direction of the insulating mounting base, so as to form a multichannel signal detection structure. In the preferred embodiment of the utility model, the insulating mounting seat is provided with an axial fine adjustment groove, the detection probe is fixed on the mounting seat through a double-nut locking structure, and the double nuts adopt locknylon nuts. In the preferred embodiment of the utility model, the permanent magnet adopts an N52-grade sintered NdFeB magnet, a nickel-copper-nickel three-layer composite coating is arranged on the surface of the N52-grade sintered NdFeB magnet, the magnet is directly inserted into a magnet mounting seat with a buckle structure, and epoxy resin sealant is filled in a gap of the magnet mounting seat. In a preferred embodiment of the present utility model, the outer layer of the double-layer shielded cable is sleeved with a metal corrugated hose, a cable shielding layer is arranged in the metal corrugated hose, and the cable shielding layer adopts a composite shielding structure of a copper m