CN216807028U

CN216807028U - Chain breakage signal protection device of scraper conveyor

Info

Publication number: CN216807028U
Application number: CN202123337060.7U
Authority: CN
Inventors: 李志领; 郭博阳; 杨高令; 李继平; 孙梦奇; 杨之冉; 孙晓凯
Original assignee: Huadian Xinzhou Guangyu Coal And Electricity Co ltd
Current assignee: Huadian Xinzhou Guangyu Coal And Electricity Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-24
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a chain breakage signal protection device of a scraper conveyor, belonging to the technical field of scraper conveyors, which is characterized by comprising a conveyor body, wherein a driving roller and a driven roller are respectively arranged at the left end and the right end inside the conveyor body, gears are fixedly sleeved at the front end and the rear end of the outer side wall of the driving roller and the driven roller, so that when the conveyor body is used, the interval time of each scraper body passing through a chain breakage detector is set on a controller, as the intervals of a plurality of scraper bodies are equal and the set interval time is consistent, when the scraper body falls off due to the disconnection of a toothed chain on the conveyor body, the falling scraper body passes through the chain breakage detector, a detection probe on the chain breakage detector always detects no information of a detection piece in a set time range, the controller controls a motor to stop running, so that by detecting each scraper body, the protection signal has more accuracy and pertinence, and the equipment is maintained by stopping operation in time.

Description

Chain breakage signal protection device of scraper conveyor

Technical Field

The utility model relates to the technical field of scraper conveyors, in particular to a chain breakage signal protection device of a scraper conveyor.

Background

In the positive pressure direct-blowing coal pulverizing system, a coal feeder is used for weighing and conveying coal blocks into a coal mill, the coal mill grinds the coal blocks into coal powder, the coal powder is conveyed into a hearth by air to be combusted, therefore, the safe and stable operation of the coal feeder directly influences the load of a unit, the pressure-resistant metering coal feeder inevitably falls to the bottom of the coal feeder from a belt in the transportation process, and a coal feeder cleaning motor (hereinafter referred to as a cleaning motor) drives a chain and a scraper to clean the coal falling at the bottom of the coal feeder so as to prevent the coal falling from being accumulated.

Scraper blade conveyor's scraper blade will drop and scrape to the coal pulverizer in for the coal briquette of coal pulverizer bottom, play the effect of clearance coal breakage, usually the chain other end drives the driven shaft and rotates, install the separation blade on the driven shaft, the periodic rotation of protection signal probe washer through monitoring driven bearing determines the chain behavior, at present because current scraper conveyor, broken chain monitoring probe installs in driven shaft department, judge the behavior of scraper blade through monitoring the driven shaft, if the scraper blade drops and clean chain and driven shaft normal operating, the scraper blade plays not to clean the effect this moment, the coal breakage can not be transported and cleared up, the coal deposit is more and finally leads to equipment to damage the unit to reduce load.

SUMMERY OF THE UTILITY MODEL

The utility model provides a chain breakage signal protection device for a scraper conveyor to solve the problems.

The chain breakage signal protection device of the scraper conveyor comprises a conveyor body, wherein a driving roller and a driven roller are respectively installed at the left end and the right end inside the conveyor body, gears are fixedly sleeved at the front end and the rear end of the outer side walls of the driving roller and the driven roller, toothed chains are movably sleeved between the four gears in a left-right two-by-two mode, a plurality of scraper bodies are installed between the outer side walls of the two toothed chains, and a detection sheet is embedded into one side, far away from the toothed chains, of each scraper body;

the chain breakage detector is fixedly installed at the right end of the inner front end face of the conveyor body, a detection probe is installed on the rear end face of the chain breakage detector, a protective cover fixed on the upper end face of the chain breakage detector is installed at the upper end of the detection probe, and the protective cover is in a U shape.

In order to enable the gear on the driving roller to drive the toothed chain and the driven roller to rotate, the chain breakage signal protection device of the scraper conveyor is preferably characterized in that two ends of inner shafts of the driving roller and the driven roller penetrate through the front end face and the rear end face of the conveyor body and extend to the outside of the conveyor body, a first roller is fixedly sleeved at the rear end of the outer side wall of the inner shaft of the driving roller, a motor is arranged on the right side of the first roller, a second roller is fixedly mounted at the output end of the motor, and a belt is movably sleeved between the first roller and the second roller.

In order to facilitate detection of the time intervals between the movements of the scraper bodies, it is preferable that the scraper conveyor chain breakage signal protection device of the present invention is configured such that the intervals between the scraper bodies are equal.

In order to facilitate the detection of the moving detection piece by the detection probe, it is preferable that the detection probe and the detection piece are located on the same horizontal axis as each other as the scraper conveyor chain breakage signal protection device of the present invention.

In order to facilitate the control of the operation of each component, it is preferable that, as the chain breakage signal protection device of the scraper conveyor, a controller is fixedly installed on the rear end face of the conveyor body, the motor is fixedly installed on the upper end face of the controller, and the controller is electrically connected with the motor and the chain breakage detector respectively.

Compared with the prior art, the utility model has the beneficial effects that:

the chain breaking signal protection device of the scraper conveyor is characterized in that when a conveyor body is used, a motor is started to enable a second roller to rotate to drive a belt and a first roller to rotate, so that a driving roller and a gear rotate, a toothed chain and a scraper body move to convey coal briquettes, at the moment, a chain breaking detector can detect an interval signal passed by each detection piece, the interval time of each scraper body passing through the chain breaking detector is set on a controller, the intervals of a plurality of scraper bodies are equal, the set interval time is consistent, when the scraper body falls off due to the fact that the toothed chain on the conveyor body is broken, the falling scraper body passes through the chain breaking detector, a detection probe on the chain breaking detector cannot detect information of the detection piece all the time within a set time range, the controller controls the motor to stop running, and therefore, through detection of each scraper body, the protection signal has higher accuracy and pertinence, and stopping the operation in time to maintain the equipment.

Drawings

FIG. 1 is a top view structural diagram of a chain breakage signal protection device of a scraper conveyor of the utility model;

FIG. 2 is a right side cross-sectional view of FIG. 1 of the present invention;

fig. 3 is an elevational cross-sectional view of fig. 1 of the present invention.

In the figure, 1, a conveyor body; 2. a drive roll; 201. a driven roller; 202. a gear; 203. a toothed chain; 3. a squeegee body; 301. detecting a sheet; 4. a chain breakage detector; 401. a protective cover; 402. detecting a probe; 5. a first roller; 6. a motor; 601. a second roller; 602. a belt; 7. and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, the chain breakage signal protection device of the scraper conveyor comprises a conveyor body 1, wherein a driving roller 2 and a driven roller 201 are respectively installed at the left end and the right end inside the conveyor body 1, gears 202 are fixedly sleeved at the front end and the rear end of the outer side walls of the driving roller 2 and the driven roller 201, toothed chains 203 are movably sleeved between the four gears 202 at the left side and the right side, a plurality of scraper bodies 3 are installed between the outer side walls of the two toothed chains 203, and a detection sheet 301 is embedded and installed at one side, far away from the toothed chains 203, of each scraper body 3;

the chain breakage detector 4 is characterized in that the chain breakage detector 4 is fixedly arranged at the right end of the front end face inside the conveyor body 1, the detection probe 402 is arranged on the rear end face of the chain breakage detector 4, the protection cover 401 fixed on the upper end face of the chain breakage detector 4 is arranged at the upper end of the detection probe 402, and the protection cover 401 is in a U shape.

In this embodiment: the chain breakage detector 4 (model: SJ30M-W10KA) is characterized in that when the conveyor body 1 is used, the second roller 601 is driven to rotate by operating the motor 6, the second roller 601 drives the belt 602 and the first roller 5 to rotate, the driving roller 2 and the gear 202 are driven to rotate, the toothed chain 203 and the scraper body 3 are driven to move to convey coal blocks, the chain breakage detector 4 can detect the interval signal of each detection piece 301, the interval time of each scraper body 3 passing through the chain breakage detector 4 is set on the controller 7, the intervals of the scraper bodies 3 are equal, the set interval time is consistent, when the scraper body 3 falls off due to the disconnection of the toothed chain 203 on the conveyor body 1, and when the falling scraper body 3 passes through the chain breakage detector 4, the detection probe 402 on the chain breakage detector 4 can not detect the information of the detection piece 301 in a set time range all the time, the controller 7 controls the motor 6 to stop running, so that the protection signals have more accuracy and pertinence by detecting each scraper body 3, and the scraper bodies are stopped in time to maintain equipment.

As a technical optimization scheme of the utility model, two ends of inner shafts of a driving roller 2 and a driven roller 201 penetrate through the front end face and the rear end face of a conveyor body 1 and extend to the outside of the conveyor body 1, a first roller 5 is fixedly sleeved at the rear end of the outer side wall of the inner shaft of the driving roller 2, a motor 6 is arranged on the right side of the first roller 5, a second roller 601 is fixedly installed at the output end of the motor 6, and a belt 602 is movably sleeved between the first roller 5 and the second roller 601.

In this embodiment: by starting the motor 6, the second roller 601 rotates to drive the belt 602 to rotate, the belt 602 drives the first roller 5 to rotate, the first roller 5 rotates to drive the driving roller 2 to rotate, and the gear 202 on the driving roller 2 drives the toothed chain 203 and the driven roller 201 to rotate.

As a technical preferable aspect of the present invention, the intervals between the plurality of squeegee bodies 3 are equal.

In this embodiment: the intervals between the plurality of scraper bodies 3 are equal, so that the intervals between the plurality of detection sheets 301 are also equal, and the interval time for detecting the movement of the plurality of scraper bodies 3 is convenient.

As a technical optimization scheme of the utility model, the detection probe 402 and the detection sheet 301 are positioned on the same horizontal axis.

In this embodiment: by providing the detection probe 402 and the detection piece 301 on the same horizontal axis, the detection probe 402 can detect the moved detection piece 301 easily.

As a technical optimization scheme of the utility model, a controller 7 is fixedly installed on the rear end face of the conveyor body 1, a motor 6 is fixedly installed on the upper end face of the controller 7, and the controller 7 is electrically connected with the motor 6 and the chain breakage detector 4 respectively.

In this embodiment: the controller 7 is arranged, so that the operation of each component is convenient to control.

The working principle and the using process of the utility model are as follows: firstly, the device is arranged below a coal block conveyor, when in use, when a coal block falls into a conveyor body 1 in the process of conveying the coal block by the coal block conveyor, a motor 6 is started, the motor 6 rotates to drive a second roller 601, the second roller 601 drives a belt 602 and a first roller 5 to rotate, so that a driving roller 2 and a gear 202 rotate to drive a toothed chain 203 and a driven roller 201 to rotate, the toothed chain 203 drives a scraper body 3 to move to convey the coal block in the rotating process, when the scraper body 3 runs, the scraper body 3 drives a detection sheet 301 to move, a uniform interval signal between the detection sheets 301 can be detected by a broken chain detector 4, the interval time of each scraper body 3 passing through the broken chain detector 4 (namely the interval time of each detection sheet 301 passing through the broken chain detector 4) is set on a controller 7, because the intervals of the scraper bodies 3 are equal and the set interval time is consistent, when the conveyor body 1 is in operation, the toothed chain 203 is disconnected to make the scraper bodies 3 fall off, when the falling scraper bodies 3 pass through the chain breakage detector 4, and the detection probe 402 on the chain breakage detector 4 cannot detect the information of the detection piece 301 all the time within a set time range, the controller 7 controls the motor 6 to stop operating.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Scraper conveyor broken chain signal protection device, its characterized in that includes:

the detection device comprises a conveyor body (1), wherein a driving roller (2) and a driven roller (201) are respectively installed at the left end and the right end of the interior of the conveyor body (1), gears (202) are fixedly sleeved at the front end and the rear end of the outer side wall of each of the driving roller (2) and the driven roller (201), toothed chains (203) are movably sleeved between the four gears (202) at the left side and the right side, a plurality of scraper blade bodies (3) are installed between the outer side walls of the two toothed chains (203), and a detection sheet (301) is installed at one side, far away from the toothed chains (203), of each scraper blade body (3) in an embedded mode;

chain breakage detector (4), right-hand member of terminal surface before chain breakage detector (4) fixed mounting is inside in conveyer body (1), test probe (402) are installed to the rear end face of chain breakage detector (4), protection casing (401) that are fixed in chain breakage detector (4) up end are installed to the upper end of test probe (402), protection casing (401) are "U" shape.

2. The broken chain signal protection device of the scraper conveyor as claimed in claim 1, wherein: the belt conveyor is characterized in that the two ends of inner shafts of the driving roller (2) and the driven roller (201) penetrate through the front end face and the rear end face of the conveyor body (1) and extend to the outside of the conveyor body (1), a first roller (5) is fixedly sleeved at the rear end of the outer side wall of the inner shaft of the driving roller (2), a motor (6) is arranged on the right side of the first roller (5), a second roller (601) is fixedly mounted at the output end of the motor (6), and a belt (602) is movably sleeved between the first roller (5) and the second roller (601).

3. The broken chain signal protection device of the scraper conveyor as claimed in claim 1, wherein: the intervals between the scraper bodies (3) are equal.

4. The broken chain signal protection device of the scraper conveyor as claimed in claim 1, wherein: the detection probe (402) and the detection sheet (301) are positioned on the same horizontal axis.

5. The broken chain signal protection device of the scraper conveyor as claimed in claim 2, wherein: the rear end face of the conveyor body (1) is fixedly provided with a controller (7), the motor (6) is fixedly arranged on the upper end face of the controller (7), and the controller (7) is electrically connected with the motor (6) and the chain breakage detector (4) respectively.