Automatic control device for turning plate of belt conveyor

Abstract

The utility model provides a belt conveyor turning plate automatic control device which comprises a funnel, an electric turning plate is arranged in the funnel, a first outlet and a second outlet are formed in the two sides of the bottom of the funnel respectively, a turning plate connecting shaft is arranged at the bottom of the electric turning plate, the electric turning plate and the turning plate connecting shaft are in transmission connection, and a crank arm is arranged on the side portion of the turning plate connecting shaft. The metal inductor and the metal inductor are connected through a transmission shaft, a first support and a second support which are arranged in parallel are installed on the side portion of the metal inductor respectively, the first support is provided with a first inductance type proximity switch, and the second support is provided with a second inductance type proximity switch. According to the utility model, plate turning operation can be carried out according to production requirements, so that the electric turning plate can reach a specified position within a set time, the automation level and the operation stability of equipment can be improved, the safety risk of electrical personnel in fault processing and post cleaning and maintenance operation at a narrow side of a belt is eliminated, and the fault processing time is greatly shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment and relates to an automatic control device for a belt conveyor flap. Background Art

[0002] The belt conveyor flap device is the core equipment in the mineral processing production system. It is interlocked with the single-line belt to stop. The flap device is responsible for dividing the materials for the fifth fine belt and the first feeding belt. The original control method is: the post operation hoist electric hoist pulls and rotates the flap to the specified position, and transmits the in-position signal to the electrical circuit through the contact mechanical limit for electrical control.

[0003] The belt flap is operated about 3-6 times per shift, and each operation requires more than two people. This operation is time-consuming and labor-intensive, and it is difficult for personnel to operate. Once a failure occurs, it is easy to cause a great impact on production; in addition, because the mechanical limit is in a dusty and humid area all year round, the limit lever is prone to corrosion and deformation, and the mechanical connecting rod fixing is prone to loosening, resulting in the loss of the induction signal, the shutdown of the precision belt No. 4, and affecting the feeding of the matching feeding belt; and two proximity devices are set on one side to collect two signals, and the frequent signal asynchrony affects the failure of the flap to work properly and the shutdown of the precision belt No. 4. In addition, the north side proximity device is installed in the belt system protection net. After a failure occurs, it cannot be quickly adjusted or replaced, which often makes the fault handling difficult and the impact time long. Utility Model Content

[0004] The utility model aims to provide an automatic control device for a belt conveyor flap in view of the problems existing in the prior art, which solves the problems that the operation of the existing belt conveyor flap device is time-consuming and labor-intensive, and failures are frequent during equipment operation.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A belt conveyor flap automatic control device comprises a funnel, wherein an electric flap is provided inside the funnel, and a first outlet and a second outlet are respectively provided on both sides of the bottom, a flap connecting shaft is provided at the bottom of the electric flap, and the two are transmission-connected, a crank arm is provided on the side of the flap connecting shaft, and the two are connected through a transmission shaft, one end of the crank arm is connected to an electric hydraulic device, and the other end is connected to a metal sensor, a first bracket and a second bracket arranged in parallel are respectively installed on the sides of the metal sensor, the first bracket is provided with a first inductive proximity switch, and the second bracket is provided with a second inductive proximity switch.

[0007] Furthermore, it also includes a plc controller, which is electrically connected to the electric hydraulic device, the first inductive proximity switch and the second inductive proximity switch respectively.

[0008] The beneficial effects of the utility model are:

[0009] The utility model can perform the flip operation according to production needs. The electric flip plate will move immediately after receiving the start signal and reach the specified position within the set time. On the one hand, it improves the automation level of the equipment and the operational stability, and on the other hand, it improves the labor productivity of employees and the output of iron ore concentrate, while eliminating the safety risks of electrical personnel in fault handling and post cleaning and maintenance operations on the narrow side of the belt, thereby greatly shortening the fault handling time. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the figure, 1-funnel, 2-electric flap, 3-flip connecting shaft, 4-metal sensor, 5-first outlet, 6-second outlet, 7-first inductive proximity switch, 8-first bracket, 9-second inductive proximity switch, 10-second bracket, 11-crank arm, 12-electric hydraulic device, 13-transmission shaft. DETAILED DESCRIPTION

[0012] The technical solution of the utility model is described below in conjunction with the accompanying drawings and implementation methods.

[0013] like Figure 1 As shown, a belt conveyor flap automatic control device comprises a hopper 1, an electric flap 2 is arranged inside the hopper 1, and a first outlet 5 and a second outlet 6 are respectively arranged on both sides of the bottom; a flap connecting shaft 3 is arranged at the bottom of the electric flap 2, and the two are transmission connected, a crank arm 11 is arranged on the side of the flap connecting shaft 3, and the two are connected through a transmission shaft 13, one end of the crank arm 11 is connected to an electric hydraulic device 12, and the other end is connected to a metal sensor 4; specifically, the crank arm 11 has the same structure and function as the "mechanical crank arm" in the Chinese utility model patent with application number 201620694335.2 and the name "A coal feeder belt deviation alarm device".

[0014] A first bracket 8 and a second bracket 10 are installed in parallel on the sides of the metal sensor 4. The first bracket 8 is provided with a first inductive proximity switch 7, and the second bracket 10 is provided with a second inductive proximity switch 9. Specifically, the first inductive proximity switch 7 and the second inductive proximity switch 9 are both inductive proximity switches of model GC-8530-FS / S415.

[0015] The utility model further comprises a plc controller, which is electrically connected to the electric hydraulic device 12, the first inductive proximity switch 7 and the second inductive proximity switch 9 respectively.

[0016] The utility model is used in the following process:

[0017] First, start the electric hydraulic device 12 to make the crank arm 11 move back and forth in the clockwise direction, and drive the flap connecting shaft 3 to make a circular motion through the transmission shaft 13. At this time, the electric flap 2 and the metal sensor 4 rotate; if the electric flap 2 reaches the first outlet 5, the first inductive proximity switch 7 coincides with the metal sensor 4, and the first inductive proximity switch 7 sends an in-position signal to the PLC controller, and the PLC controller sends a stop command to control the electric hydraulic device 12 to stop, and the first outlet 5 discharges materials normally; if the second inductive proximity switch 9 coincides with the metal sensor 4, the second inductive proximity switch 9 sends an in-position signal to the PLC controller, and the PLC controller sends a stop command to control the electric hydraulic device 12 to stop, and the second outlet 6 discharges materials normally.

Claims

1. A belt conveyor flap automatic control device, characterized in that: The invention comprises a funnel (1), wherein an electric flap (2) is provided inside the funnel (1), and a first outlet (5) and a second outlet (6) are provided on both sides of the bottom, respectively; a flap connecting shaft (3) is provided at the bottom of the electric flap (2), and the two are in transmission connection; a crank arm (11) is provided on the side of the flap connecting shaft (3), and the two are connected via a transmission shaft (13); one end of the crank arm (11) is connected to an electric hydraulic device (12), and the other end is connected to a metal sensor (4); a first bracket (8) and a second bracket (10) are respectively installed on the side of the metal sensor (4) in parallel; the first bracket (8) is provided with a first inductive proximity switch (7), and the second bracket (10) is provided with a second inductive proximity switch (9).

2. The belt conveyor flap automatic control device according to claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the electric hydraulic device (12), the first inductive proximity switch (7) and the second inductive proximity switch (9) respectively.

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