Intelligent monitoring device for pressure loss at tail end of hydraulic system of mining elevator

Abstract

The utility model provides an intelligent monitoring device for pressure loss at the tail end of a hydraulic system of a mining elevator, which relates to the technical field of elevators and comprises an oil container, an intermediate relay and a PLC (programmable logic controller). The oil containers are placed on the two sides of the lower portion of a brake base of each damper brake. Magnetic control liquid level switches are arranged in the multiple sets of oil containers. Opening points of the multiple sets of magnetic control liquid level switches are connected in parallel through wires. According to the utility model, an oil container with a proper capacity is respectively arranged on two sides below each group of gate seats, magnetic control liquid level switches are arranged in the containers, open points of all the magnetic control liquid level switches are connected in parallel through leads to control the on-off of a coil of an intermediate relay, and then a contact of the intermediate relay is connected into a PLC (Programmable Logic Controller) to control the on-off of the coil of the intermediate relay. And when oil leakage occurs and an alarm position is reached, the elevator gives an alarm and locks a loop, so that the operation safety of the elevator is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hoists, in particular to an intelligent monitoring device for pressure loss at the end of a hydraulic system of a mining hoist. Background Art

[0002] The working reliability of the hoist disc brake is an important part to ensure the safe operation of the hoist. The hoist is responsible for the important tasks of lifting personnel, materials and coal in mine production. The safe operation of the hoist directly affects the safety of underground personnel and coal production. The hoist disc brake relies on disc springs to generate braking force and oil pressure to release the brake;

[0003] The original design of the hoist disc brake does not monitor the disc brake in real time. If the hoist disc brake has a serious oil leakage and the inspectors fail to discover the oil leakage in time, the braking force of the hoist will be too large when it stops, and the hoist will have a slip rope failure, or the brake disc will not be fully opened when the hoist is started, causing the hoist to drag the brake. Both of these situations seriously affect the safe and stable operation of the hoist and cause considerable harm to equipment and personal safety. Therefore, the utility model proposes an intelligent monitoring device for terminal pressure loss of the hydraulic system of a mining hoist to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above-mentioned problems, the utility model proposes an intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist can conveniently monitor in real time whether the brake gate of the hoist is leaking oil. When oil leakage occurs, an early warning can be issued in time, which is convenient for inspection personnel to promptly discover oil leakage of the hoist disc brake at the first time, thereby greatly improving the safety of the mine hoisting system.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an intelligent monitoring device for pressure loss at the end of a hydraulic system of a mining hoist, comprising an oil container, an intermediate relay and a PLC controller, wherein a conduit is connected to the oil container, and the conduit is connected to the brake of a disc brake, and the oil container is placed on both sides of the brake seat of each set of brakes;

[0006] Magnetic liquid level switches are provided inside the multiple groups of oil containers, and the opening points of the multiple groups of magnetic liquid level switches are connected in parallel through wires, and the output ends of the wires are connected to intermediate relays for controlling the on and off of the coils of the intermediate relays. The contacts of the intermediate relays are connected to the PLC controller, and the control end of the PLC controller is connected to the hoist circuit and the alarm.

[0007] A further improvement is that the magnetically controlled liquid level switch is used to monitor oil leakage in the oil container and set an alarm position, and the PLC controller is used to control the alarm to sound an alarm and lock the hoist circuit after oil leakage occurs and reaches the alarm position.

[0008] A further improvement is that the conduit member includes a first conduit, a tee and a second conduit, the first conduits are provided in multiple groups, and two adjacent groups of the first conduits are connected by a tee, and the second conduit is connected to one side of the tee.

[0009] A further improvement is that: a connecting pipe is obliquely connected to one side of the second conduit, and the connecting pipe is used to connect to the brake of the disc brake, and a solenoid valve is provided on the second conduit.

[0010] A further improvement is that a gate seat base plate is provided on the gate seat of the brake, and the first conduit is fixed on the gate seat base plate through a first clamping block.

[0011] A further improvement is that the second conduit is fixed on the gate base plate through a second clamping block, and the second clamping block is located at two sides of the solenoid valve.

[0012] A further improvement is that a clamp is provided on the outer side of the oil container, and mounting holes are provided on both sides of the clamp, and the clamp is fixed to the gate seat base plate through the mounting holes and bolts.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model places an oil container of appropriate capacity on both sides under each group of gate seats, installs a magnetically controlled liquid level switch inside the container, connects the opening points of all the magnetically controlled liquid level switches in parallel through wires, controls the on and off of the coil of an intermediate relay, and then connects the contacts of the intermediate relay to the PLC controller. When oil leakage occurs and reaches the alarm position, the hoist will sound an alarm and lock the circuit to ensure the safe operation of the hoist, facilitate real-time monitoring of whether the hoist brake gate has oil leakage, and can issue an early warning in time when oil leakage occurs, so that the inspection personnel can find the oil leakage of the hoist disc brake in time, which greatly improves the safety of the mine hoisting system.

[0015] 2. The oil container of the utility model is fixed on the brake seat base plate by a clamp, which will not deviate and is more reliable. Multiple groups of first conduits are spliced ​​by a tee pipe, and a second conduit is branched out on one side of the tee pipe, which cooperates with the connecting pipe to receive the oil leakage of the brake brake of the disc brake. Therefore, multiple groups of second conduits can be branched out through the tee pipe, which is convenient for connecting multiple groups of brake brakes of the disc brake and expanding the monitoring range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the composition of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation of the oil container and the conduit member of the utility model.

[0018] Among them: 1. Oil container; 2. Intermediate relay; 3. PLC controller; 4. Conduit parts; 5. Magnetic liquid level switch; 6. Wires; 7. Hoist circuit; 8. Alarm; 9. First conduit; 10. Three-way pipe; 11. Second conduit; 12. Solenoid valve; 13. Connecting pipe; 14. First clamping block; 15. Gate base plate; 16. Second clamping block; 17. Hoop; 18. Bolt. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] Embodiment 1

[0021] according to Figure 1 , 2 As shown, this embodiment proposes an intelligent monitoring device for pressure loss at the end of a hydraulic system of a mining hoist, comprising an oil container 1, an intermediate relay 2 and a PLC controller 3. The oil container 1 is connected to a conduit 4, and the conduit 4 is connected to the brake of a disc brake. The oil container 1 is placed on both sides of the brake seat of each set of brakes.

[0022] Multiple groups of oil containers 1 are provided with magnetically controlled liquid level switches 5 inside, and the opening points of multiple groups of magnetically controlled liquid level switches 5 are connected in parallel through wires 6, and the output end of the wires 6 is connected to the intermediate relay 2, which is used to control the on and off of the coil of the intermediate relay 2. The contacts of the intermediate relay 2 are connected to the PLC controller 3, and the control end of the PLC controller 3 is connected to the hoist circuit 7 and the alarm 8. When in use, an oil container 1 of appropriate capacity is placed on both sides under each group of gate seats, and a magnetically controlled liquid level switch 5 is installed inside the container. The opening points of all magnetically controlled liquid level switches 5 are connected in parallel through wires 6 to control the on and off of the coil of an intermediate relay 2, and then the contacts of the intermediate relay 2 are connected to the PLC controller 3. When oil leakage occurs and reaches the alarm position, the hoist issues an alarm and locks the circuit to ensure the safe operation of the hoist, and facilitates real-time monitoring of whether the hoist brake gate has oil leakage, and an early warning can be issued in time when oil leakage occurs.

[0023] The magnetically controlled liquid level switch 5 is used to monitor the oil leakage in the oil container 1 and set the alarm position. The PLC controller 3 is used to control the alarm 8 to sound an alarm and lock the hoist circuit 7 after the oil leakage occurs and reaches the alarm position. The open points of all magnetically controlled liquid level switches 5 are connected in parallel through the wire 6 to control the on and off of the coil of an intermediate relay 2, and then the contacts of the intermediate relay 2 are connected to the PLC controller 3. When the oil leakage occurs and reaches the alarm position, the hoist sounds an alarm and locks the circuit to ensure the safe operation of the hoist, facilitate real-time monitoring of whether the hoist brake has oil leakage, and timely issue an early warning when oil leakage occurs.

[0024] Embodiment 2

[0025] according to Figure 1 , 2 As shown, this embodiment proposes an intelligent monitoring device for pressure loss at the end of a hydraulic system of a mining hoist, comprising an oil container 1, an intermediate relay 2 and a PLC controller 3. The oil container 1 is connected to a conduit 4, and the conduit 4 is connected to the brake of a disc brake. The oil container 1 is placed on both sides of the brake seat of each set of brakes.

[0026] Multiple groups of oil containers 1 are provided with magnetically controlled liquid level switches 5 inside, and the opening points of multiple groups of magnetically controlled liquid level switches 5 are connected in parallel through wires 6, and the output end of the wires 6 is connected to the intermediate relay 2, which is used to control the on and off of the coil of the intermediate relay 2. The contacts of the intermediate relay 2 are connected to the PLC controller 3, and the control end of the PLC controller 3 is connected to the hoist circuit 7 and the alarm 8. When in use, an oil container 1 of appropriate capacity is placed on both sides under each group of gate seats, and a magnetically controlled liquid level switch 5 is installed inside the container. The opening points of all magnetically controlled liquid level switches 5 are connected in parallel through wires 6 to control the on and off of the coil of an intermediate relay 2, and then the contacts of the intermediate relay 2 are connected to the PLC controller 3. When oil leakage occurs and reaches the alarm position, the hoist issues an alarm and locks the circuit to ensure the safe operation of the hoist, and facilitates real-time monitoring of whether the hoist brake gate has oil leakage, and an early warning can be issued in time when oil leakage occurs.

[0027] The conduit member 4 includes a first conduit 9, a tee 10 and a second conduit 11. The first conduit 9 is provided with multiple groups, and two adjacent groups of the first conduits 9 are connected by a tee 10. The second conduit 11 is connected to one side of the tee 10. A connecting pipe 13 is obliquely connected to one side of the second conduit 11, and the connecting pipe 13 is used to connect the brake of the disc brake. The second conduit 11 is provided with a solenoid valve 12. Multiple groups of first conduits 9 are spliced ​​by the tee 10, and the second conduit 11 is branched out on one side of the tee 10 to cooperate with the connecting pipe 13 to receive the oil leakage of the brake of the disc brake. Therefore, multiple groups of second conduits 11 can be branched out through the tee 10, which is convenient for connecting multiple groups of brakes of the disc brake and expanding the monitoring range. When the brake of a disc brake at a certain location does not need to be monitored, the solenoid valve 12 at the corresponding position can be closed.

[0028] A gate base plate 15 is provided on the gate base of the brake, and the first conduit 9 is fixed on the gate base plate 15 through a first clamping block 14. The second conduit 11 is fixed on the gate base plate 15 through a second clamping block 16, and the second clamping block 16 is located at both sides of the solenoid valve 12. The first conduit 9 is fixed by the first clamping block 14, and the second conduit 11 and the solenoid valve 12 are fixed by the second clamping block 16, so as to avoid loosening and deviation, and be more reliable.

[0029] The outer side of the oil container 1 is provided with a clamp 17, and both sides of the clamp 17 are provided with mounting holes, and the clamp 17 is fixed to the gate base plate 15 through the mounting holes and bolts 18. The oil container 1 is fixed to the gate base plate 15 through the clamp 17, and will not deviate, which is more reliable.

[0030] The intelligent monitoring device for the end pressure loss of the hydraulic system of the mine hoist places an oil container 1 of appropriate capacity on both sides under each group of gate seats, installs a magnetically controlled liquid level switch 5 inside the container, and connects the opening points of all the magnetically controlled liquid level switches 5 in parallel through a wire 6 to control the on and off of the coil of an intermediate relay 2, and then connects the contacts of the intermediate relay 2 to the PLC controller 3. When oil leakage occurs and reaches the alarm position, the hoist will issue an alarm and lock the circuit to ensure the safe operation of the hoist, and it is convenient to monitor whether the hoist brake gate has oil leakage in real time. When oil leakage occurs, an early warning can be issued in time, which is convenient for inspection personnel to promptly discover the oil leakage of the hoist disc brake at the first time, greatly improving the safety of the mine hoisting system. The oil container 1 is fixed on the brake seat base plate 15 by a clamp 17, and will not deviate, which is more reliable. Multiple groups of first conduits 9 are spliced ​​through a tee pipe 10, and a second conduit 11 is branched out on one side of the tee pipe 10, and cooperates with the connecting pipe 13 to receive the oil leakage of the brake brake of the disc brake. Therefore, multiple groups of second conduits 11 can be branched out through the tee pipe 10, which is convenient for connecting multiple groups of brake brakes of the disc brake and expanding the monitoring range.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An intelligent monitoring device for pressure loss at the end of a hydraulic system of a mining hoist, comprising an oil container (1), an intermediate relay (2) and a PLC controller (3), characterized in that: The oil container (1) is connected to a conduit member (4), and the conduit member (4) is connected to the brake of the disc brake, and the oil container (1) is placed on both sides under the brake seat of each set of brakes; A plurality of groups of oil containers (1) are each provided with a magnetically controlled liquid level switch (5). The opening points of the plurality of groups of magnetically controlled liquid level switches (5) are connected in parallel via a wire (6), and the output end of the wire (6) is connected to an intermediate relay (2) for controlling the on and off of the coil of the intermediate relay (2). The contact of the intermediate relay (2) is connected to a PLC controller (3), and the control end of the PLC controller (3) is connected to a hoist circuit (7) and an alarm (8).

2. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 1 is characterized in that: The magnetically controlled liquid level switch (5) is used to monitor oil leakage in the oil container (1) and set an alarm position, and the PLC controller (3) is used to control the alarm device (8) to sound an alarm and lock the hoist circuit (7) when oil leakage occurs and reaches the alarm position.

3. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 1 is characterized in that: The conduit member (4) comprises a first conduit (9), a three-way pipe (10) and a second conduit (11); the first conduits (9) are provided in multiple groups, and two adjacent groups of the first conduits (9) are connected via the three-way pipe (10); the second conduit (11) is connected to one side of the three-way pipe (10).

4. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 3 is characterized in that: A connecting pipe (13) is obliquely connected to one side of the second conduit (11), and the connecting pipe (13) is used to connect to the brake of a disc brake. A solenoid valve (12) is provided on the second conduit (11).

5. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 4 is characterized in that: A gate seat base plate (15) is provided on the gate seat of the brake, and the first conduit (9) is fixed on the gate seat base plate (15) via a first clamping block (14).

6. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 5 is characterized in that: The second conduit (11) is fixed on the gate base plate (15) via a second clamping block (16), and the second clamping block (16) is located at two sides of the solenoid valve (12).

7. The intelligent monitoring device for pressure loss at the end of the hydraulic system of a mining hoist according to claim 1 is characterized in that: The outer side of the oil container (1) is provided with a clamp (17), and mounting holes are provided on both sides of the clamp (17). The clamp (17) is fixed to the gate seat base plate (15) through bolts (18) in the mounting holes.

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