Deviation and blanking alarm device for belt conveyor

Abstract

The utility model aims to solve the problem that deviation and blanking of an existing belt conveyor cannot be found in time, and provides a deviation and blanking alarm device for the belt conveyor. The device comprises a sensing unit and an alarm unit, the sensing unit is composed of an upper plate, a bottom plate, a hinge, a switch, a contact, a wire and a spring. The alarm unit is a buzzer alarm and is electrically connected with the switch through a wire. According to the device, the single-control switch is triggered and pressed by the contact through the downward pressing gravity of the concentrate powder, when the concentrate powder falls on the surface of the upper-layer plate of the device, the single-control switch is switched on, the alarm gives an alarm, personnel can be informed to go for maintenance in time, the phenomenon of large-amount material leakage is effectively prevented, and smooth production is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of belt conveyor equipment, and particularly relates to a belt conveyor deviation and material falling alarm device. BACKGROUND

[0002] The concentrate powder obtained through iron ore dressing is generally conveyed to the next production link by a belt conveyor. When the concentrate powder slides from a hopper to a belt, the belt is prone to deviation due to unevenness of the concentrate powder. A sealing cover is usually installed in the belt conveyor during the transfer process of the belt conveyor. When the belt deviates, the concentrate powder will fall onto the ground outside the sealing cover at the head of the belt conveyor. The belt worker usually does not find it in time, and the material outside the cover often accumulates a lot. The worker needs to complete a lot of cleaning work after going to the scene. Since the material outside the cover is cleaned completely by manpower, it is time-consuming and laborious and seriously affects production. SUMMARY

[0003] The utility model aims at the problem that the deviation and material falling of the existing belt conveyor are not found in time, and provides a belt conveyor deviation and material falling alarm device. The device of the utility model utilizes the downward pressure gravity of the concentrate powder to make the contact point press the single control switch. When the concentrate powder falls on the surface of the upper plate of the device, the single control switch is connected, the alarm is alarmed, personnel can be notified in time to go to maintenance, a large amount of material deviation phenomenon is effectively prevented, and production is ensured to proceed smoothly.

[0004] A belt conveyor deviation and material falling alarm device, comprising a sensing unit and an alarm unit.

[0005] The sensing unit is composed of an upper plate, a bottom plate, a hinge, a switch, a contact point, a wire and a spring. One side edge of the upper plate is connected to one side edge of the bottom plate through the hinge. The switch is arranged on the inner side of the upper plate. The contact point is arranged on the inner side of the upper plate, and the positions of the switch and the contact point correspond to each other. The spring is at least two. One end of the spring is fixedly arranged at the two ends of the other side edge of the bottom plate. The other end of the spring is connected to the two ends of the other side edge of the upper plate through a hook. The wire is electrically connected to the switch.

[0006] The alarm unit is a buzzing alarm, which is electrically connected to the switch through the wire.

[0007] Further, the belt conveyor deviation and material falling alarm device, when the upper plate and the bottom plate are folded, the two plates form an included angle of 3-5°.

[0008] Further, the belt conveyor deviation and material falling alarm device is provided with a limiting rod fixed on the bottom plate or a limiting plate arranged on the upper plate in the spring.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The device can send an alarm when the material falls, which can alert the workers to find and handle in time, so as to avoid a large amount of material running accidents, improve the production efficiency, and ensure the smooth production. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The structural schematic diagram of the device in the open state;

[0012] Figure 2 The structural schematic diagram of the device in the folded state;

[0013] Figure 3 The electrical schematic diagram of the device;

[0014] Among them, 1, the upper plate, 2, the bottom plate, 3, the hinge, 4, the wire, 5, the spring, 6, the switch, 7, the contact, 8, the limiting plate, 9, the buzzing alarm, 10, the hook. DETAILED DESCRIPTION

[0015] EMBODIMENT

[0016] A belt conveyor deviation and material falling alarm device, comprising a sensing unit and an alarm unit;

[0017] The sensing unit is composed of an upper plate 1, a bottom plate 2, a hinge 3, a switch 6, a contact 7, a wire 4 and a spring 5; one side edge of the upper plate is connected to one side edge of the bottom plate through the hinge, the switch is arranged on the inner side of the bottom plate, the contact is arranged on the inner side of the upper plate, and the positions of the switch and the contact correspond to each other, the spring is at least two, one end of the spring is fixedly arranged at two ends of the other side edge of the bottom plate, the other end of the spring is connected to the two ends of the other side edge of the upper plate through the hook 10, the wire is electrically connected with the switch, the upper plate and the bottom plate are folded to form an included angle of 3-5° between them; a limiting rod fixed to the bottom plate is arranged in the spring, or a limiting plate 8 is arranged on the upper plate; the alarm unit is a buzzing alarm 9, which is electrically connected with the switch through the wire.

[0018] The use method of the device is:

[0019] The two plates of the device are connected together by the hinge and the spring, and can be freely opened and closed when the spring is removed, and the switch is a 86 single control switch.

[0020] The device is placed outside the head seal cover of the belt conveyor, and the upper plate and the bottom plate are stacked. Due to the support of the spring, the upper plate and the bottom plate are folded at an angle of 3-5°. When the belt deviates and the material falls on the device outside the head seal cover, the gravity of the material presses the spring, the contact is pressed to the switch, and due to the limiting action of the limiting rod or the limiting plate, the material falling on the device will not damage the contact and the switch. For the circuit, the breaker is normally closed, and when the single control switch is pressed and closed, the buzzer is powered on and the siren is sounded, which plays an alarm role.

Claims

1. A belt conveyor deviation and material fall-off alarm device, characterized in that, It comprises a sensing unit and an alarm unit; The sensing unit is composed of an upper plate, a bottom plate, a hinge, a switch, a contact, a wire and a spring; one side of the upper plate is connected with one side of the bottom plate through the hinge; the switch is arranged on the inner side of the bottom plate; the contact is arranged on the inner side of the upper plate and the positions of the switch and the contact correspond to each other; the spring is at least two; one end of the spring is fixedly arranged at two ends of the other side of the bottom plate respectively; the other end of the spring is connected with the two ends of the other side of the upper plate through a hook; and the wire is electrically connected with the switch. The alarm unit is a buzzing alarm and is electrically connected with the switch through the wire.

2. The belt conveyor deviation and material falling alarm device according to claim 1, characterized in that, When the upper plate and the bottom plate are folded, an included angle between the two is 3-5°.

3. The belt conveyor deviation and material fall alarm device according to claim 1, characterized in that, A limiting rod fixed on the bottom plate is arranged in the spring or a limiting plate is arranged on the upper plate.

Images