Blockage protection device for belt conveyor

Abstract

The utility model discloses a material blocking protection device of a belt conveyor, which comprises a machine head dustproof cover, a material receiving hole is arranged at the top of the machine head dustproof cover, the machine head dustproof cover is fixedly connected with a material receiving hole, the belt conveyor is arranged in the machine head dustproof cover, a square hole is arranged on one side of the machine head dustproof cover, and a material blocking triggering assembly is arranged in the square hole of the machine head dustproof cover. According to the anti-blocking device for the belt conveyor, the belt conveyor can be powered off and shut down in time at the initial stage of blocking through the cooperation of the trigger cover plate and the travel switch, and meanwhile the infrared sensor is arranged to process the blocking situation which cannot be responded by the trigger cover plate. Damage to the conveying belt body or the driving device is avoided, and the service life of the machine is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyor devices and relates to a material blocking protection device for a belt conveyor. Background Art

[0002] Belt conveyors have the advantages of large conveying capacity, simple structure, convenient maintenance, and standardized components. They are widely used in mining, metallurgy, coal and other industries to convey loose materials or finished items. According to the conveying process requirements, they can be transported by a single unit, or they can be composed of multiple units or combined with other conveying equipment to form a horizontal or inclined conveying system to meet the needs of different layout types of work lines. In most cases, belt conveyors are required to transport large pieces of materials, foreign objects and iron parts. At present, in the process of conveying materials by belt conveyors, the problem of transmission failure caused by blockage has not been promptly fed back, which will not only cause damage to the belt conveyor body or drive device, but also take a long time to clean up and repair after a large amount of blockage, which will seriously restrict the production of the entire conveying line. Utility Model Content

[0003] The utility model aims to provide a material blocking protection device for a belt conveyor, which has the characteristic of accurate material blocking detection.

[0004] The technical solution adopted by the utility model is a belt conveyor material blocking protection device, comprising a machine head dust cover, a material receiving hole is opened on the top of the machine head dust cover, the machine head dust cover is fixedly connected with the material receiving device, a belt conveyor is arranged in the machine head dust cover, a square hole is opened on one side of the machine head dust cover, a trigger material blocking component is installed in the square hole of the machine head dust cover, the trigger material blocking component is connected to the belt conveyor controller, and an infrared sensor is installed on the inner wall of the machine head dust cover.

[0005] The utility model is also characterized in that:

[0006] One end of the belt conveyor is installed inside the dust cover of the machine head, and the other end is installed with a belt conveyor controller.

[0007] The trigger blocking assembly includes a trigger cover, one side of the trigger cover is connected to the machine head dust cover through a hinge, the other side of the trigger cover is connected to a travel switch, the travel switch is connected to the belt conveyor controller, the bottom of the travel switch is connected to a fixed base, and the fixed base is connected to the machine head dust cover.

[0008] The size of the square hole of the machine head dust cover is 300mm*400mm.

[0009] The size of the trigger cover is 305mm*405mm.

[0010] The beneficial effect of the utility model is that the utility model can promptly cut off the power to the belt conveyor and stop it in the early stage of material blockage by cooperating with the trigger cover plate and the travel switch. At the same time, an infrared sensor is provided to deal with the material blockage situation that fails to trigger the cover plate, thereby avoiding damage to the conveyor belt body or the driving device and extending the service life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the material blocking protection device for a belt conveyor of the utility model;

[0012] Figure 2 The utility model is a schematic diagram of the structure of a travel switch in an embodiment of a material blocking protection device for a belt conveyor.

[0013] In the figure, 1. receiving hopper, 2. machine head dust cover, 3. trigger cover plate, 4. trigger blocking assembly, 5. fixed base, 6. travel switch, 7. belt conveyor, 8. belt conveyor controller. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0015] Example 1

[0016] The utility model belt conveyor material blocking protection device is as follows Figure 1 As shown, it includes a head dust cover 2, a receiving hole is opened on the top of the head dust cover 2, the head dust cover 2 is fixedly connected to the receiving hopper 1, a belt conveyor 7 is arranged in the head dust cover 2, a square hole is opened on one side of the head dust cover 2, a trigger blocking component 4 is installed in the square hole of the head dust cover 2, the trigger blocking component 4 is connected to the belt conveyor controller 8, an infrared sensor 9 is installed on the inner wall of the head dust cover 2, the infrared sensor 9 is installed in the middle of the head dust cover 2, one end of the belt conveyor 7 is installed inside the head dust cover 2, and the other end is installed with the belt conveyor controller 8, the trigger blocking component 4 includes a trigger cover 3, one side of the trigger cover 3 is connected to the head dust cover 2 through a hinge, the other side of the trigger cover 3 is connected to a travel switch 6, the travel switch 6 is connected to the conveyor controller 8, the bottom of the travel switch 6 is connected to a fixed base 5, the travel switch 6 uses a model of LX19-111, and the fixed base 5 is connected to the head dust cover 2.

[0017] Example 2

[0018] The utility model belt conveyor material blocking protection device is as follows Figure 1As shown, it includes a head dust cover 2, a receiving hole is opened on the top of the head dust cover 2, the head dust cover 2 is fixedly connected to the receiving hopper 1, a belt conveyor 7 is arranged in the head dust cover 2, a square hole is opened on one side of the head dust cover 2, a trigger material blocking component 4 is installed in the square hole of the head dust cover 2, the trigger material blocking component 4 is connected to a belt conveyor controller 8, an infrared sensor 9 is installed on the inner wall of the head dust cover 2, the infrared sensor 9 is installed in the middle of the head dust cover 2, one end of the belt conveyor 7 is installed inside the head dust cover 2, and the other end is installed with a belt conveyor Conveyor controller 8, trigger blocking assembly 4 includes a trigger cover 3, one side of the trigger cover 3 is connected to the machine head dust cover 2 through a hinge, the other side of the trigger cover 3 is connected to a travel switch 6, the travel switch 6 is connected to the belt conveyor controller 8, the bottom of the travel switch 6 is connected to a fixed base 5, the travel switch 6 uses model LX19-111, the fixed base 5 is connected to the machine head dust cover 2, the size of the square hole of the machine head dust cover 2 is 300mm*400mm, and the size of the trigger cover 3 is 305mm*405mm.

[0019] Example 3

[0020] The utility model belt conveyor material blocking protection device is as follows Figure 1 As shown, it includes a head dust cover 2, a receiving hole is opened on the top of the head dust cover 2, the head dust cover 2 is fixedly connected to the receiving hopper 1, a belt conveyor 7 is arranged in the head dust cover 2, a square hole is opened on one side of the head dust cover 2, a trigger blocking component 4 is installed in the square hole of the head dust cover 2, the trigger blocking component 4 is connected to a belt conveyor controller 8, an infrared sensor 9 is installed on the inner wall of the head dust cover 2, the infrared sensor 9 is installed in the middle of the head dust cover 2, one end of the belt conveyor 7 is installed in the head dust cover 2, and the other end is installed with the conveyor controller 8, the trigger blocking component 4 comprises a trigger cover plate 3, one side of the trigger cover plate 3 is connected to the machine head dust cover 2 through a hinge, the other side of the trigger cover plate 3 is connected to a travel switch 6, the travel switch 6 is connected to a belt conveyor controller 8, the bottom of the travel switch 6 is connected to a fixed base 5, the travel switch 6 is used in a model of LX19-111, the fixed base 5 is connected to the machine head dust cover 2, the size of the square hole of the machine head dust cover 2 is 300mm*400mm, the size of the trigger cover plate 3 is 305mm*405mm, and the size of the receiving hole of the machine head dust cover 2 is 200mm*300mm.

[0021] The working principle of the utility model is as follows: a fixed base 5 is welded to one side of the square hole of the machine head dust cover 2, a hinge is installed on the other side of the square hole of the machine head dust cover 2, a trigger cover plate 3 is installed through the hinge, a travel switch 6 is installed on the fixed base, the roller end of the travel switch 6 presses the trigger cover plate 3, the travel switch 6 is electrically connected to the belt conveyor controller 8, the action angle of the roller end of the travel switch 6 does not exceed 30°, an infrared sensor 9 is provided in the middle of the inner wall of the machine head dust cover 2, when the infrared signal emitted by the infrared sensor 9 is blocked for a long time, the motor of the belt conveyor 7 is immediately powered off through the belt conveyor controller 8, when the material received by the hopper 1 is blocked, the material accumulation causes the material to push open the trigger cover plate 3, the opening of the material cover plate 3 drives the roller end of the travel switch 6 to the working position, the motor of the belt conveyor 7 is immediately powered off through the belt conveyor controller 8, so that the belt conveyor stops immediately.

Claims

1. The belt conveyor material blocking protection device is characterized by: The machine head dust cover (2) comprises a machine head dust cover (2), a material receiving hole is provided at the top of the machine head dust cover (2), a material receiving hopper (1) is fixedly connected to the machine head dust cover (2), a belt conveyor (7) is arranged inside the machine head dust cover (2), a square hole is provided on one side of the machine head dust cover (2), a trigger material blocking component (4) is installed in the square hole of the machine head dust cover (2), the trigger material blocking component (4) is connected to a belt conveyor controller (8), and an infrared sensor (9) is installed on the inner wall of the machine head dust cover (2).

2. The belt conveyor material blocking protection device according to claim 1, characterized in that: One end of the belt conveyor (7) is installed inside the machine head dust cover (2), and the other end is installed with a belt conveyor controller (8).

3. The belt conveyor material blocking protection device according to claim 1, characterized in that: The trigger blocking assembly (4) comprises a trigger cover (3), one side of the trigger cover (3) is connected to the machine head dust cover (2) via a hinge, the other side of the trigger cover (3) is connected to a travel switch (6), the travel switch (6) is connected to a belt conveyor controller (8), the bottom of the travel switch (6) is connected to a fixed base (5), and the fixed base (5) is connected to the machine head dust cover (2).

4. The belt conveyor material blocking protection device according to claim 3, characterized in that: The size of the square hole of the machine head dust cover (2) is 300mm*400mm.

5. The belt conveyor material blocking protection device according to claim 3, characterized in that: The size of the trigger cover plate (3) is 305 mm*405 mm.

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