Coal interruption early warning device for coal drop pipe

Abstract

The utility model relates to a coal breaking early warning device for a coal drop pipe, which comprises a conveying pipeline and a protective shell arranged on the conveying pipeline, and is characterized in that the protective shell is provided with an adjusting mechanism and a cleaning mechanism, the conveying pipeline is provided with two monitoring through holes, the cleaning mechanism comprises a protective cover, a cleaning brush roll and a tensioning wheel, and the cleaning brush roll is arranged on the conveying pipeline. The number of the cleaning brush rollers is three, the cleaning brush rollers and the tensioning wheel are rotationally installed on the protective shell, and the protective cover is arranged at the bottom of the protective shell. According to the coal interruption early warning device for the coal drop pipe, through the arrangement of the cleaning mechanism and the adjusting mechanism, a radio wave receiver and a radio wave transmitter can rapidly move backwards and turn over in a coal conveying gap to brush off coal slag, then the coal slag of a probe is directly brushed off, the cleaning effect is better, and meanwhile the coal interruption early warning device is convenient to use. In the operation process of the cleaning mechanism, the comb-shaped plate cleans the cleaning brush roller, the coal cinder cleaning effect of the probe is further improved, and therefore the coal interruption early warning effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal production technical field, concretely for a coal falling pipe's coal breaking early warning device. BACKGROUND

[0002] Coal transmission is an indispensable step in the process of mining, processing and using coal. The commonly used coal transmission device now includes a support frame, a receiving belt, a feeding belt and a coal falling pipe. The coal falling pipe is a general term for coal, port, thermal power, coal transfer station, coal washing plant and coal-fired industrial boiler industries. In the use of the coal falling pipe, a radio wave device is used to monitor the coal transportation situation, so as to early warn the coal falling pipe blockage and avoid the coal transportation breaking situation.

[0003] In the Chinese patent publication No. CN211711916U, a coal falling pipe coal breaking early warning device of a coal feeder is provided. The electric cylinder drives the rack to move forward and backward, drives the gear ring to rotate back and forth through meshing transmission, and drives the hollow round frame, wireless wave receiver and wireless wave transmitter to rotate back and forth, so as to shake off the coal adhered to the transmitting probe and receiving probe. The wireless wave transmitter and wireless wave receiver accurately and timely detect the coal quantity between them, avoiding the influence of the adhered coal on the transmission of wireless wave.

[0004] In the implementation of the present application, the inventors found that the coal on the probe can be shaken off by rotating the wireless wave receiver and wireless wave transmitter back and forth, which can make part of the coal ash separate, but the coal ash itself has a large adhesion, and is mostly in powder and granular form, and has a light mass, so that it will not easily leave during the shaking process, and the probe still has coal ash affecting the monitoring effect, so further improvement is needed. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model provides a coal breaking early warning device for a coal falling pipe, which has the advantages of easy cleaning and solves the problem of poor coal ash cleaning effect of the existing radio wave equipment.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a coal breaking early warning device for a coal falling pipe, including a transportation pipeline and a protective shell provided thereon, the protective shell is provided with an adjusting mechanism and a cleaning mechanism, the transportation pipeline is provided with two monitoring perforations;

[0007] The cleaning mechanism comprises a protective cover, cleaning brush rollers and tensioning wheels, the number of the cleaning brush rollers is three, and the cleaning brush rollers and the tensioning wheels are rotationally installed on the protective shell, the protective cover is arranged at the bottom of the protective shell, the protective cover is provided with a servo motor, the cleaning brush rollers and the output end of the servo motor are provided with linkage toothed pulleys, the linkage toothed pulleys are integrally transmissionally installed with transmission belts, and the tensioning wheels are in contact with the transmission belts.

[0008] Preferably, the adjusting mechanism comprises linear guides, double-column cylinders and adjusting racks, the number of the adjusting racks is four, the number of the linear guides is two, and the linear guides, the double-column cylinders and the adjusting racks are arranged on the protective shell, the output end of the double-column cylinder is provided with a connecting plate, the connecting plate is rotationally installed with a rotating shaft having one end rotationally connected with the output end of the linear guide, the rotating shaft is externally fixedly installed with a bearing plate and two driving gears, the driving gears are in engagement with the adjusting racks, and the bearing plate is provided with a radio wave receiver and a radio wave transmitter.

[0009] Preferably, the protective shell is further provided with three comb-shaped plates and a cleaning door for cleaning the inside of the protective shell, and the inner bottom wall of the protective shell is a left-to-right inclined surface.

[0010] Preferably, the probes of the radio wave receiver and the radio wave transmitter are respectively matched with two monitoring perforations.

[0011] Compared with the prior art, the technical scheme has the following beneficial effects:

[0012] The coal falling pre-warning device for the coal falling pipe is provided with the cleaning mechanism and the adjusting mechanism, so that the radio wave receiver and the radio wave transmitter can quickly move backward and flip to brush the coal dregs in the coal conveying gap, and then directly brush the coal dregs with the probes, so that the cleaning effect is better, and the comb-shaped plates clean the cleaning brush rollers during the operation of the cleaning mechanism, so that the probe coal dregs cleaning effect is further improved, and the coal falling pre-warning is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a structural schematic view of the utility model;

[0015] Figure 3 It is a structural schematic view of the adjusting mechanism of the utility model;

[0016] Figure 4 It is a structural schematic view of the cleaning mechanism of the utility model;

[0017] Figure 5 It is a structural schematic view of the comb-shaped plate of the utility model;

[0018] Figure 6 It is a schematic diagram of the bearing plate structure of the utility model.

[0019] In the figure: 1, transport pipeline; 2, monitoring perforation; 3, protective shell; 4, cleaning door; 5, linear guide rail; 6, double-column air cylinder; 7, connecting plate; 8, rotating shaft; 9, comb plate; 10, bearing plate; 11, radio wave receiver; 12, radio wave transmitter; 13, adjusting rack; 14, driving gear; 15, cleaning brush roller; 16, linkage toothed pulley; 17, tension pulley; 18, transmission belt; 19, protective cover; 20, servo motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-6 The coal falling pipe coal breaking early warning device in the embodiment comprises a transport pipeline 1 and a protective shell 3 arranged on the transport pipeline 1. The protective shell 3 is provided with an adjusting mechanism and a cleaning mechanism. The transport pipeline 1 is provided with two monitoring perforations 2. The protective shell 3 is further provided with three comb plates 9 and a cleaning door 4 for cleaning the inside of the protective shell 3. The inner bottom wall of the protective shell 3 is a left-to-right inclined surface.

[0022] The arrangement of the inclined surface of the inner bottom wall of the protective shell 3 enables the fallen coal ash to be guided to fall, so that the inside of the device as a whole can be conveniently maintained.

[0023] The cleaning mechanism comprises a protective cover 19, cleaning brush rollers 15 and tension pulleys 17. The number of the cleaning brush rollers 15 is three. The cleaning brush rollers 15 and the tension pulleys 17 are both rotationally installed on the protective shell 3. The protective cover 19 is arranged at the bottom of the protective shell 3. The protective cover 19 is provided with a servo motor 20. The cleaning brush rollers 15 and the servo motor 20 are both provided with linkage toothed pulleys 16. The linkage toothed pulleys 16 are integrally transmissionally installed with a transmission belt 18. The tension pulleys 17 are in contact with the transmission belt 18.

[0024] The arrangement of the tension pulleys 17 enables the tension of the transmission belt 18 to be adjusted, so that the transmission belt 18 can stably drive the linkage toothed pulleys 16 to rotate, thereby realizing the stable cleaning of the three cleaning brush rollers 15.

[0025] Specifically, when the adjusting mechanism moves backward out of the monitoring perforation 2 and is turned over, at this time, the servo motor 20 is started to drive the linkage toothed pulley 16 to rotate, so that the transmission belt 18 drives the three cleaning brush rollers 15 to rotate simultaneously, thereby directly cleaning the cinder, and the cleaning effect is better.

[0026] Preferably, the adjusting mechanism comprises a linear guide rail 5, a double-column cylinder 6 and adjusting racks 13, the number of the adjusting racks 13 is four, the number of the linear guide rail 5 is two, and the linear guide rail 5 and the double-column cylinder 6 are arranged on the protective shell 3, the output end of the double-column cylinder 6 is provided with a connecting plate 7, the connecting plate 7 is rotatably installed with a rotating shaft 8 having one end rotatably connected with the output end of the linear guide rail 5, the rotating shaft 8 is externally fixedly installed with a bearing plate 10 and two driving gears 14, the driving gears 14 are engageable with the adjusting racks 13, the bearing plate 10 is provided with a radio wave receiver 11 and a radio wave transmitter 12, and the probes of the radio wave receiver 11 and the radio wave transmitter 12 are respectively matched with the two monitoring perforations 2.

[0027] Specifically, in the coal conveying gap of the transportation pipeline 1, the double-column cylinder 6 is started to drive the rotating shaft 8 to move to the right side, thereby realizing that the probes of the radio wave receiver 11 and the radio wave transmitter 12 are separated from the inside of the monitoring perforation 2, at this time, the front and rear driving gears 14 enter the inside of the upper and lower adjusting racks 13, the adjusting racks 13 are driven by the driving gears 14 to drive the rotating shaft 8 to rotate downward, so that the probes of the radio wave receiver 11 and the radio wave transmitter 12 enter between the three cleaning brush rollers 15, thereby enabling the cleaning brush rollers 15 to directly brush off the cinder on the surface of the probes, and then the double-column cylinder 6 drives the radio wave receiver 11 and the radio wave transmitter 12 to repeat the above steps in reverse to restore, and effective monitoring and early warning are performed again.

[0028] Among them, the three comb-shaped plates 9 are arranged one by one corresponding to the three cleaning brush rollers 15, and one comb-shaped plate 9 is arranged on the cleaning door 4, thereby enabling the cinder adhered to the cleaning brush roller 15 to be cleaned, and the cleaning effect is ensured.

[0029] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0030] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A coal-cutting early warning device for a coal drop pipe, comprising a transport pipe (1) and a protective shell (3) arranged thereon, characterized in that, The protective shell (3) is provided with an adjusting mechanism and a cleaning mechanism, and the transportation pipeline (1) is provided with two monitoring perforations (2); The cleaning mechanism comprises a protective cover (19), cleaning brush rollers (15) and tension pulleys (17), the cleaning brush rollers (15) are three in number and are rotationally installed on the protective shell (3) together with the tension pulleys (17), the protective cover (19) is arranged at the bottom of the protective shell (3), the protective cover (19) is provided with a servo motor (20), the cleaning brush rollers (15) and the servo motor (20) are provided with linkage toothed pulleys (16) at the output ends, the linkage toothed pulleys (16) are integrally transmissionally installed with transmission belts (18), and the tension pulleys (17) are in contact with the transmission belts (18).

2. The coal-cutting early warning device for a coal chute according to claim 1, characterized in that: The adjusting mechanism comprises linear guides (5), double-column air cylinders (6) and adjusting racks (13), the adjusting racks (13) are four in number, the linear guides (5) are two in number and are arranged on the protective shell (3) together with the adjusting racks (13) and the double-column air cylinders (6), the double-column air cylinders (6) are provided with connecting plates (7) at the output ends, the connecting plates (7) are rotationally installed with rotating shafts (8) rotationally connected with the output ends of the linear guides (5) at one end, the rotating shafts (8) are externally fixedly installed with a bearing plate (10) and two driving gears (14) in number, the driving gears (14) are meshable with the adjusting racks (13), and the bearing plate (10) is provided with a radio wave receiver (11) and a radio wave transmitter (12).

3. The coal-cutting early warning device for a coal chute according to claim 1, characterized in that: The protective shell (3) is further provided with three comb-shaped plates (9) and a cleaning door (4) for cleaning the interior, the comb-shaped plates (9) are used for cleaning of the cleaning brush rollers (15), and the inner bottom wall of the protective shell (3) is a left-to-right inclined surface.

4. The coal-cutting early warning device for a coal chute according to claim 2, characterized in that: The probes of the radio wave receiver (11) and the radio wave transmitter (12) are respectively matched with the two monitoring perforations (2).

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