Automatic cleaning device for coal receiving groove at tail of belt conveyor
By designing an automatic cleaning device at the tail of the belt machine, and using proximity switches and vibration motors, the automatic cleaning of coal at the tail of the belt machine is achieved, solving the safety risks and production efficiency problems caused by manual cleaning, and ensuring the continuous operation of the equipment.
Patent Information
- Application Number
- CN202422133259.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, coal falling off the tail of the belt conveyor needs to be manually cleaned, which poses safety risks and affects production efficiency.
An automatic cleaning device for the end of the belt conveyor is designed. Using the proximity switch and vibration motor, the automatic cleaning of coal is realized through the inclination design of the coal connection groove and the coordination of the unloading chute, the gravity effect of the coal accumulation belt conveyor and the vibration of the vibration motor are automatically discharged and re-engaged.
The automatic cleaning of coal at the tail of the belt conveyor is realized, which reduces safety risks, improves production efficiency, avoids manual intervention, and ensures continuous operation of the equipment.
Smart Images
Figure CN223086809U_ABST
Abstract
Description
Technical Field:
[0001] The utility model relates to the technical field of coal accumulation cleaning, in particular to an automatic cleaning device for the coal receiving trough at the tail of a belt conveyor. Background Art:
[0002] Belt conveyors have the advantages of large conveying capacity, simple structure, convenient maintenance, and standardized components, and are widely used in the coal industry; when belt conveyors are conveying coal materials, due to the vibration of belt transmission, some coal material particles or coal dust will roll down from the upper belt. To avoid the impact of coal dust and fallen coal on the normal operation of the belt conveyor, generally, a frame is installed between the upper and lower belts at the tail of the belt conveyor, and a coal receiving trough is installed on the frame. The coal dust and fallen coal are collected through the coal receiving trough. To avoid the coal receiving trough being filled with fallen coal, enterprises need to arrange operators to clean it irregularly. However, when manually cleaning the fallen coal, especially on some steep uphill belts during the operation of the belt conveyor, the safety risk is relatively high; if the belt conveyor is stopped for cleaning, it will cause the enterprise to stop production and delay the project progress. Content of the Utility Model:
[0003] The purpose of the utility model is to provide an automatic cleaning device for the coal receiving trough at the tail of a belt conveyor.
[0004] The purpose of the utility model is implemented by the following technical solution: an automatic cleaning device for the coal receiving trough at the tail of a belt conveyor, which includes a frame, a coal receiving trough, a first vibration motor, a proximity switch, and a discharge chute; the frame is installed between the upper and lower belts at the tail of the coal material belt conveyor, the coal receiving trough is connected to the upper surface of the frame through a spring, the coal receiving trough is inclined perpendicular to the coal material conveying direction, a discharge port is opened at the bottom end of the coal receiving trough, the first vibration motor is fixed on the outer side wall of the coal receiving trough, the proximity switch is arranged on the frame below the coal receiving trough, the proximity switch is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the power switch of the first vibration motor; the discharge chute is inclined below the discharge port of the coal receiving trough.
[0005] Preferably, a coal accumulation belt conveyor is also arranged on the same side as the discharge chute; the discharge chute is inclined from high to low along the material flow direction, the feeding end of the discharge chute is placed below the discharge port of the coal receiving trough, the discharging end of the discharge chute is placed above the feeding end of the coal accumulation belt conveyor, the coal accumulation belt conveyor is inclined from low to high along the conveying direction, and the discharging end of the coal accumulation belt conveyor is placed on the upper belt of the coal material belt conveyor.
[0006] Preferably, a second vibration motor is fixed on the outer bottom wall of the discharge chute, and the output end of the controller is also electrically connected to the power switch of the second vibration motor.
[0007] Preferably, the included angle α between the coal receiving trough and the horizontal direction ranges from 15° to 35°.
[0008] Advantages of the present utility model: The present utility model is provided with a coal receiving trough, a first vibration motor, a proximity switch, a discharge chute, a second vibration motor and an accumulated coal belt conveyor. During the process of transporting coal materials, the accumulated coal belt conveyor always runs. Since the coal receiving trough is inclined, some of the falling coal entering the coal receiving trough rolls down along the bottom surface of the coal receiving trough into the discharge chute due to its own gravity, and some of the falling coal entering the discharge chute rolls down along the bottom surface of the discharge chute onto the accumulated coal belt conveyor and returns to the coal material belt conveyor through the accumulated coal belt conveyor to participate in the transportation again, realizing automatic cleaning; when the falling coal in the coal receiving trough accumulates and the weight gradually increases, the coal receiving trough moves downward to contact and squeeze the proximity switch, and the proximity switch transmits a signal to the controller. The controller controls the switches of the first vibration motor and the second vibration motor to be turned on simultaneously. The first vibration motor and the second vibration motor start to vibrate. The accumulated coal in the coal receiving trough is discharged from the discharge port into the discharge chute, and the accumulated coal in the discharge chute is discharged onto the accumulated coal belt conveyor and returns to the coal material belt conveyor through the accumulated coal belt conveyor to participate in the coal material transportation again, realizing automatic cleaning of the accumulated coal, which can prevent the falling coal from filling the coal receiving trough and entering between the drum and the belt, causing a shutdown failure, and there is no need for manual cleaning of the accumulated coal, reducing the operation risk. At the same time, the production efficiency is improved. Description of the drawings:
[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative labor, other drawings can be obtained based on these drawings.
[0010] Figure 1 It is a structural schematic diagram of the present utility model.
[0011] Figure 2 is Figure 1 the top view of
[0012] Figure 3 is Figure 1 the A-A sectional view of
[0013] Figure 4 It is a schematic diagram of the control principle of the present utility model.
[0014] The marks of each component in the drawings are as follows: frame 1, coal receiving trough 2, discharge port 2.1, first vibration motor 3, proximity switch 4, discharge chute 5, second vibration motor 6, accumulated coal belt conveyor 7, coal material belt conveyor 8, spring 9, controller 10, support 11, fixed frame 12. Specific implementation manner:
[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.
[0016] As Figures 1-4 shown, an automatic cleaning device for a coal receiving trough at the tail of a belt conveyor includes a frame 1, a coal receiving trough 2, a first vibration motor 3, a proximity switch 4, a discharge chute 5, a second vibration motor 6, and a coal accumulating belt conveyor 7;
[0017] The frame 1 is installed between the upper and lower belts at the tail of the coal material belt conveyor 8. The frame 1 is used to install the coal receiving trough 2. The coal receiving trough 2 is connected to the upper surface of the frame 1 through a spring 9. The spring 9 plays a buffering role and can assist the coal receiving trough 2 to vibrate. In this embodiment, four springs 9 are provided at the bottom of the coal receiving trough 2. The bottom end of each spring 9 is fixedly connected to the upper surface of the frame 1, and the top end of each spring 9 is fixedly connected to the bottom of the coal receiving trough 2. The coal receiving trough 2 is used to collect the coal material that falls on the upper surface of the lower belt as the driven roller rotates. The coal receiving trough 2 is inclined along the direction perpendicular to the coal material conveying direction. The included angle range α between the coal receiving trough 2 and the horizontal direction is 15° to 35°. A discharge port 2.1 is opened at the bottom end of the coal receiving trough 2. A first vibration motor 3 is fixed on the outer side wall of the coal receiving trough 2. A proximity switch 4 is provided on the frame 1 below the coal receiving trough 2. The proximity switch 4 is electrically connected to the input end of the controller 10. The output end of the controller 10 is electrically connected to the power switch of the first vibration motor 3. As the weight of the coal falling in the coal receiving trough 2 increases, the bottom of the coal receiving trough 2 moves downward to contact and press the proximity switch 4. The proximity switch 4 transmits a signal to the controller 10. The controller 10 controls the power switch of the first vibration motor 3 to be turned on, and the first vibration motor 3 starts to vibrate, causing the coal receiving trough 2 to discharge. The accumulated coal in the coal receiving trough 2 is discharged from the discharge port 2.1;
[0018] A discharge chute 5 is fixed on the discharge side of the coal receiving trough 2 by a bracket 11, the feed end of the discharge chute 5 is placed below the discharge port 2.1 of the coal receiving trough 2, the discharge chute 5 is tilted from high to low along the material flow direction, the discharge end of the discharge chute 5 is placed above the feed end of the coal accumulation belt conveyor 7, a second vibration motor 6 is fixed on the outer bottom wall of the discharge chute 5, the output end of the controller 10 is also electrically connected to the power switch of the second vibration motor 6, the discharge chute 5 is vibrated by the second vibration motor 6, and the fallen coal is prevented from accumulating in the discharge chute 5; A coal accumulation belt conveyor 7 is fixed on the same side as the discharge chute 5 by a fixing frame 12. The coal accumulation belt conveyor 7 is inclined from low to high along the conveying direction. The discharge end of the coal accumulation belt conveyor 7 is placed on the upper belt of the coal material belt conveyor 8. When the first vibration motor 3 makes the coal receiving chute 2 vibrate, a large amount of accumulated coal in the coal receiving chute 2 is discharged from the discharge port 2.1 into the discharge chute 5; the accumulated coal is first transported to the coal accumulation belt conveyor 7 through the inclined discharge chute 5, and then transported to the coal material belt conveyor 8 through the coal accumulation belt conveyor 7 for re-transportation.
[0019] Working process: During the process of transporting coal by the coal belt conveyor 8, some coal particles or coal dust roll down from the belt and enter the coal receiving chute 2. Since the coal receiving chute 2 is inclined, some of the coal that has entered the coal receiving chute 2 rolls down along the bottom surface of the coal receiving chute 2 to the discharge chute 5 due to its own gravity. During the process of transporting coal, the coal accumulation belt conveyor 7 is kept running. Some of the coal that has entered the discharge chute 5 rolls down along the bottom surface of the discharge chute 5 to the coal accumulation belt conveyor 7, and then returns to the upper belt of the coal belt conveyor 8 through the coal accumulation belt conveyor 7 to participate in transportation again, thus realizing automatic cleaning;
[0020] When the fallen coal in the coal receiving chute 2 accumulates, the weight gradually increases, the coal receiving chute 2 moves down to contact and squeeze the proximity switch 4, the proximity switch 4 transmits a signal to the controller 10, the controller 10 controls the power switch of the first vibration motor 3 and the power switch of the second vibration motor 6 to be turned on at the same time, the first vibration motor 3 and the second vibration motor 6 start to vibrate, so that the accumulated coal in the coal receiving chute 2 is discharged from the discharge port 2.1 into the discharge chute 5, the accumulated coal in the discharge chute 5 is discharged onto the coal accumulation belt conveyor 7, and returns to the upper belt of the coal belt conveyor 8 through the coal accumulation belt conveyor 7, and re-participates in the coal transportation, further realizing automatic cleaning; when a large amount of accumulated coal in the coal receiving chute 2 is vibrated and discharged, the bottom of the coal receiving chute 2 moves up and disengages from the proximity switch 4, the proximity switch 4 transmits a signal to the controller 10, the controller 10 controls the power switch of the first vibration motor 3 to be turned off, and the fallen coal in the coal receiving chute 2 continues to be discharged by its own gravity, and during the entire coal transportation process, there is no need to manually clean the accumulated coal.
[0021] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An automatic cleaning device for the coal receiving chute at the tail of a belt conveyor, characterized in that, It includes a frame, a coal receiving chute, a first vibration motor, a proximity switch and a discharge chute; the frame is installed between the upper and lower belts at the tail of the coal belt conveyor, the coal receiving chute is connected to the upper surface of the frame by springs, the coal receiving chute is inclined perpendicular to the coal conveying direction, a discharge port is provided at the bottom end of the coal receiving chute, the first vibration motor is fixed on the outer side wall of the coal receiving chute, the proximity switch is arranged on the frame below the coal receiving chute, the proximity switch is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the power switch of the first vibration motor; The discharge chute is inclined below the discharge port of the coal receiving chute.
2. The automatic cleaning device for the coal receiving chute at the tail of the belt conveyor according to claim 1, wherein, A coal accumulating belt conveyor is also arranged on the same side as the discharge chute; the discharge chute is inclined from high to low along the material flow direction, the feeding end of the discharge chute is placed below the discharge port of the coal receiving chute, the discharging end of the discharge chute is placed above the feeding end of the coal accumulating belt conveyor, the coal accumulating belt conveyor is inclined from low to high along the conveying direction, and the discharging end of the coal accumulating belt conveyor is placed on the upper belt of the coal belt conveyor.
3. An automatic cleaning device for the coal receiving chute at the tail of a belt conveyor according to claim 1 or 2, characterized in that, A second vibration motor is fixed on the outer bottom wall of the discharge chute, and the output end of the controller is also electrically connected to the power switch of the second vibration motor.
4. An automatic cleaning device for the coal receiving trough at the tail of a belt conveyor according to claim 3, characterized in that, The included angle range α between the coal receiving chute and the horizontal direction is 15° to 35°.