Detection and alarm device for coal overflow and coal scattering

Abstract

The utility model relates to the technical field of coal transportation, and discloses a coal overflow and scattering detection alarm device, the end part of one side of a rotating support plate is connected with a connecting seat and is detachably connected with a baffle plate, and the edge part of a linkage shaft is connected with a trigger rotating rod at the position on the inner side of a back shell; a coal blocking microswitch is installed at the position, corresponding to the trigger rotating rod, in the back shell, and through the shaft seat, the rotating supporting plate, the baffle, the linkage shaft, the trigger rotating rod and the coal blocking microswitch, when the coal piling phenomenon occurs in the discharging hopper, the piled coal is used for driving the baffle to overturn upwards, the rotating supporting plate and the linkage shaft are driven to deflect synchronously, and the coal blocking phenomenon is avoided. The linkage shaft drives the triggering rotating rod to deflect, the triggering block at the end of the triggering rotating rod can make contact with the coal blocking microswitch to act, a coal blocking signal is sent to a central controller, alarm response is carried out, meanwhile, the belt conveying motor is closed, continuous coal conveying is stopped, the material blocking situation is detected and responded in time, and larger losses are prevented from being further caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal transportation technical field, concretely is a detection alarm device of coal overflow and coal scattering. BACKGROUND

[0002] Coal overflow and coal scattering in the coal conveying line is a problem encountered in the process of coal transportation, the reason of coal overflow and coal scattering is often that the material in the belt conveyor is not discharged properly, which may cause the material in the belt to be large or small, when the material is large, the discharge port may not be timely, causing the discharge bucket to be blocked, and further causing coal overflow, if the belt deviates during transportation, it may cause coal scattering, when the belt conveyor and the upstream and downstream equipment are not smooth or the distance is not appropriate, it may also cause coal scattering, in some designs, the small curvature radius of the concave section may cause the belt to be suspended, thereby causing the material to leak to both sides, such as plough coal device failure or push rod falling off, which may also cause coal overflow or coal scattering, coal overflow and coal scattering in the coal conveying line is a problem that needs to be paid attention to and solved, as the current design does not have equipment to detect coal overflow and coal scattering, technical improvement is needed to realize the detection of coal overflow and coal scattering.

[0003] The existing detection system may not accurately identify all coal overflow and coal scattering conditions, especially when the conveyor belt is severely worn or the coal leakage pipe is blocked, the coal overflow and coal scattering conditions may be more serious, the detection equipment may be constrained by conditions and cannot accurately detect, coal overflow and coal scattering not only causes waste of coal resources, but also pollutes the site, coal overflow and coal scattering causes the equipment to be damaged, at the same time, long-term work in a serious dust pollution environment also threatens the health of workers. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a detection alarm device for coal overflow and coal scattering, which solves the problem that the existing detection system may not accurately identify all coal overflow and coal scattering conditions, especially when the conveyor belt is severely worn or the coal leakage pipe is blocked, the coal overflow and coal scattering conditions may be more serious, the detection equipment may be constrained by conditions and cannot accurately detect, coal overflow and coal scattering not only causes waste of coal resources, but also pollutes the site, coal overflow and coal scattering causes the equipment to be damaged, at the same time, long-term work in a serious dust pollution environment also threatens the health of workers.

[0006] (II) Technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a detection alarm device of coal overflow and coal scattering, including detection switch casing and back shell, one side of detection switch casing is detachably connected with back shell, the side edge of detection switch casing is symmetrically welded with two installation supports, the inside of installation support is equipped with oval hole, and the other side edge of detection switch casing is installed with wiring round box;

[0008] The edge of the back shell is provided with an axle seat, the inner side of the axle seat is embedded with a linkage shaft connected in rotation, one end of the linkage shaft is detachably connected with a rotating support plate through a screw, one side end of the rotating support plate is connected with a connecting seat, and a baffle is detachably connected with the connecting seat, the edge of the back shell is connected with a horizontal support at the position of the side edge of the rotating support plate, the edge of the linkage shaft is connected with a trigger lever at the position inside the back shell, and a coal blocking micro switch is installed at the position corresponding to the trigger lever inside the back shell.

[0009] The side edge of the connecting side plate is bonded with a sealing block, the detection switch casing and the back shell are connected in position through the connecting side plate, and the connecting side plates between the side edges of the detection switch casing and the back shell are detachably connected through connecting bolts.

[0010] As an optimal technical scheme of the detection alarm device of coal overflow and coal scattering of the utility model, the detection switch casing and the back shell are made of stainless steel, the detection switch casing is installed in the drop hopper through the installation support, the rotating support plate and the baffle are in a horizontal state, the rotating support plate is horizontally supported through the horizontal support, and the inner side of the horizontal support is provided with a buffer pad.

[0011] As an optimal technical scheme of the detection alarm device of coal overflow and coal scattering of the utility model, the rotating support plate rotates the linkage shaft to deflect along the axle seat, the linkage shaft drives the trigger lever to contact the coal blocking micro switch, and the signal output end of the coal blocking micro switch is connected with the signal input end of the central control.

[0012] As an optimal technical scheme of the detection alarm device of coal overflow and coal scattering of the utility model, the inside of the connecting seat is embedded with two limiting strip plates arranged in parallel, the baffle is embedded and installed between the two limiting strip plates, and the edge of the baffle is detachably connected with the limiting strip plates through the fixing bolt.

[0013] As an optimal technical scheme of the detection alarm device of coal overflow and coal scattering of the utility model, the end of the rotating support plate is provided with an L-shaped segment, the connecting seat is connected with the L-shaped segment of the rotating support plate through the screw, the inside of the connecting seat is provided with a matching groove, the limiting strip plate is clamped in the matching groove, and the limiting strip plate is detachably connected with the connecting seat through the dismounting bolt.

[0014] As an optimal technical scheme of the detection alarm device for coal overflow and coal scattering, the limit rail is installed at the edge of the back shell corresponding to the rotating support plate, the guide step groove is formed in the limit rail, and the movable roller is connected to the inner side of the guide step groove.

[0015] As an optimal technical scheme of the detection alarm device for coal overflow and coal scattering, the movable roller is driven to move along the guide step groove by the connecting disc during the deflection of the rotating support plate, and the rotating support plate cannot drive the movable roller to move downward in the horizontal state.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the detection alarm device for coal overflow and coal scattering has the following beneficial effects:

[0018] 1. The detection structure is composed of the shaft seat, the rotating support plate, the baffle, the linkage shaft, the trigger lever and the coal blocking micro switch. When the coal stacking phenomenon occurs in the falling hopper, the baffle is turned upward by the stacked coal, the rotating support plate and the linkage shaft are synchronously deflected, the linkage shaft drives the trigger lever to deflect, the trigger block at the end of the trigger lever can contact and act on the coal blocking micro switch, a coal blocking signal is sent to the central control for alarm response, the belt conveying motor is turned off, and the coal conveying is stopped, so that the material blocking condition is detected and responded in time, further loss is prevented, and the efficiency and safety of coal transportation are improved.

[0019] After the coal blocking phenomenon disappears, the baffle is reset under the action of gravity and keeps the horizontal support state, so that the accuracy and reliability of the device in the detection process are ensured, and the detection structure is simple and fine in design, is suitable for relatively extensive coal conveying sites, has strong environmental adaptability, and does not need frequent adjustment and maintenance.

[0020] 2. The connecting seat, the limit strip and the fixing bolt are used for conveniently and quickly limiting and connecting the baffle and the rotating support plate, so that the baffle is conveniently assembled, the limit strip has a certain length, the bottom of the baffle can keep stable, the stability of the assembled baffle is improved, the horizontal support is used for conveniently supporting the rotating support plate, so that the baffle can only drive the rotating support plate to deflect under the material blocking and extruding action, and after the baffle is reset by gravity, the horizontal support is used for supporting the rotating support plate to keep the horizontal support state.

[0021] 3, by limiting rail, guide step groove, movable roller and connecting disc, can in baffle drive rotating branch plate deflection, connecting disc will movable roller and rotating branch plate connection, make rotating branch plate deflection synchronous drive movable roller along the guide step groove inside the limiting rail and carry out limiting guide sliding, convenient for the deflection path of rotating branch plate is limited, make it can stably drive linkage shaft and trigger the deflection of the rotating lever, improve the precision of detection reaction, prevent the position deviation of rotating branch plate makes the detection of misoperation rate is high.

[0022] 4, by connecting side plate convenient detection switch shell and back shell quick alignment connection, combined with sealing block and connecting bolt, ensure the tightness of the connecting contact position between them, with split type connection mode, convenient for the installation of detection device, also convenient for subsequent maintenance of detection switch shell and back shell inside detection device, make operation simple and convenient, and use mounting support and oval hole, convenient for adjustable installation of detection switch shell and back shell, make it can stably install in detection position, realize higher precision of coal overflow and coal scattering detection. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure diagram of the utility model.

[0024] Figure 2 It is the front view of the utility model.

[0025] Figure 3 It is the internal structure diagram of the back shell of the utility model.

[0026] Figure 4 It is the structure diagram of the sealing block of the utility model.

[0027] Figure 5 It is the structure diagram of the rotating branch plate of the utility model.

[0028] Figure 6 It is the structure diagram of the limiting rail of the utility model.

[0029] In the drawing: 1, detection switch shell;2, connecting side plate;3, mounting support;4, oval hole;5, wiring round box;6, back shell;7, shaft seat;8, rotating branch plate;9, connecting seat;10, limiting strip;11, baffle;12, fixed bolt;13, horizontal support;14, linkage shaft;15, trigger rotating lever;16, coal plugging micro switch;17, limiting rail;18, guide step groove;19, movable roller;20, connecting disc;21, sealing block;22, connecting bolt. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the present application more clear, specific embodiments will be further described in detail below with reference to the drawings. However, it should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0031] In the description of the present application, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] In the description of the present application, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product is used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation, and cannot be understood as indicating or implying relative importance. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically limited. "Several" means one or more, unless otherwise specifically limited.

[0033] In the description of the present application, it should be noted that unless otherwise specifically defined and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment

[0034] Please refer to Figures 1-6The present invention provides the following technical solution: a detection alarm device for coal spillage and coal scattering, comprising a detection switch housing 1 and a back shell 6, wherein the back shell 6 is detachably connected to one side of the detection switch housing 1, and two mounting supports 3 are symmetrically welded to one side of the detection switch housing 1, wherein the mounting supports 3 have elliptical holes 4 inside, and a wiring box 5 is installed on the other side of the detection switch housing 1, wherein the wiring box 5 facilitates the wiring connection of the detection devices in the detection switch housing 1 and the back shell 6;

[0035] A bearing seat 7 is installed on the edge of the back shell 6. A linkage shaft 14 is rotatably connected to the inner side of the bearing seat 7. One end of the linkage shaft 14 is detachably connected to a rotating support plate 8 via screws. A connecting seat 9 is detachably connected to a baffle 11 on one side of the rotating support plate 8. A horizontal support 13 is connected to the edge of the back shell 6 corresponding to the side position of the rotating support plate 8. The detection switch housing 1 and the back shell 6 are made of stainless steel. The detection switch housing 1 is installed in the hopper via the mounting support 3. When the rotating support plate 8 and the baffle 11 are in a horizontal state, the rotating support plate 8 is horizontally supported by the horizontal support 13. A buffer pad is provided on the inner side of the horizontal support 13. The mounting support 3 and the elliptical hole 4 facilitate convenient and adjustable installation of the detection switch housing 1 and the back shell 6, allowing them to be stably installed in the detection position. The horizontal support 13 supports the rotating support plate 8. Maintaining a horizontal support state, the side of the linkage shaft 14 is connected to the trigger rod 15 at the position inside the back shell 6. A coal blockage micro switch 16 is installed inside the back shell 6 at the corresponding position of the trigger rod 15. The rotating support plate 8 rotates the linkage shaft 14 to deflect along the shaft seat 7. The linkage shaft 14 drives the trigger rod 15 to contact the coal blockage micro switch 16. The signal output terminal of the coal blockage micro switch 16 is connected to the signal input terminal of the central control. When coal pile-up occurs in the hopper, the piled-up coal can be used to drive the baffle 11 to flip upward, thereby driving the rotating support plate 8 and the linkage shaft 14 to deflect synchronously. This allows the linkage shaft 14 to drive the trigger rod 15 to deflect, and the trigger block at the end of the trigger rod 15 to contact the coal blockage micro switch 16, causing the coal blockage micro switch 16 to activate, sending a coal blockage signal to the central control for an alarm response, and simultaneously shutting down the belt conveyor motor.

[0036] The detection switch housing 1 and the back cover 6 are both fixedly connected to the opposite side of the side plate 2, and the side plate 2 is bonded with a sealing block 21. The detection switch housing 1 and the back cover 6 are aligned and connected by the side plate 2, and the side plate 2 of the detection switch housing 1 and the back cover 6 are detachably connected by the connecting bolt 22.

[0037] The inside of the connecting seat 9 is embedded with two parallel limiting strip plates 10, the baffle 11 is embedded and installed between the two limiting strip plates 10, and the edge of the baffle 11 is detachably connected with the limiting strip plate 10 through the fixing bolt 12, the end of the rotating support plate 8 is provided in an L shape, and the connecting seat 9 is connected with the L-shaped segment of the rotating support plate 8 through a screw, the inside of the connecting seat 9 is provided with a matching groove, the limiting strip plate 10 is clamped in the matching groove, and the limiting strip plate 10 is detachably connected with the connecting seat 9 through a detachable bolt, so that the baffle 11 and the rotating support plate 8 are quickly and conveniently limited and connected, the baffle 11 is more convenient to assemble, and the limiting strip plate 10 has a certain length, so that the bottom of the baffle 11 can be kept stable during assembly, and the stability of the baffle 11 after assembly is improved.

[0038] The edge of the back shell 6 is provided with a limiting rail 17 at the position of the rotating support plate 8, the inside of the limiting rail 17 is provided with a guide step groove 18, and the inside of the guide step groove 18 is matched and connected with a movable roller 19, one end of the movable roller 19 is connected with the edge of the rotating support plate 8 through a connecting disc 20, and the movable roller 19 is driven to move along the guide step groove 18 through the connecting disc 20 during the deflection of the rotating support plate 8, and the movable roller 19 cannot be driven to move downward when the rotating support plate 8 is in a horizontal state, so that the deflection path of the rotating support plate 8 is limited, the linkage shaft 14 and the trigger lever 15 can be stably deflected, and the sensitivity of the detection reaction is improved.

[0039] The working principle and use process of the utility model are as follows: firstly, the installation support 3 and the oval hole 4 are used to conveniently and adjustably install the detection switch shell 1 and the back shell 6, so that they can be stably installed at the detection position in the material drop hopper, high-precision coal overflow and coal scattering detection is realized, the wiring round box 5 is convenient for wiring connection of the detection devices in the detection switch shell 1 and the back shell 6, the connecting side plate 2, the sealing block 21 and the connecting bolt 22 are convenient for quick alignment connection between the detection switch shell 1 and the back shell 6, and the tightness of the connection position therebetween is ensured, so that the detection devices are conveniently installed in a split type connection mode, and the detection devices inside the detection switch shell 1 and the back shell 6 are also convenient to maintain subsequently;

[0040] When the baffle 11 needs to be installed, the connecting seat 9, the limiting strip 10 and the fixing bolt 12 are used to quickly limit the connection between the baffle 11 and the rotating support plate 8, making the assembly of the baffle 11 more convenient. The limiting strip 10 has a certain length, so that the edge of the baffle 11 can remain stable with the limiting strip 10 during assembly, improving the stability of the baffle 11. The horizontal support 13 facilitates the support of the rotating support plate 8, so that the baffle 11 can only drive the rotating support plate 8 to deflect under the action of material blockage and squeezing. After resetting, the rotating support plate 8 is restored to a horizontal support state through the support of the horizontal support 13.

[0041] In actual material blockage detection, when coal piles up in the hopper, the piled-up coal drives the baffle 11 to flip upward, thereby causing the rotating support plate 8 and the linkage shaft 14 to deflect synchronously. This allows the linkage shaft 14 to drive the trigger rod 15 to deflect. During the deflection of the linkage shaft 14 by the rotating support plate 8, the movable roller 19 is connected to the rotating support plate 8 through the connecting plate 20. This allows the movable roller 19 to slide along the guide step groove 18 inside the limiting track 17 when the rotating support plate 8 deflects, thus limiting the deflection path of the rotating support plate 8 and enabling it to stably drive the linkage shaft 14 and the trigger rod 15 to deflect. This improves the sensitivity of the detection response and prevents the high false detection rate caused by the positional deviation of the rotating support plate 8.

[0042] When the trigger lever 15 deflects, the trigger block at the end of the trigger lever 15 can contact the coal blockage micro switch 16, causing the coal blockage micro switch 16 to activate and send a coal blockage signal to the central control system for an alarm response. The central control system then controls the belt conveyor motor to shut down and stop coal feeding, enabling timely detection and response to material blockage and preventing further losses. After the coal blockage disappears, the baffle 11 resets under gravity, maintaining its horizontal support state and ensuring the accuracy and reliability of the device during the detection process.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detection and alarm device for coal spillage, comprising a detection switch housing (1) and a back cover (6), characterized in that: A back shell (6) is detachably connected to one side of the detection switch housing (1). Two mounting supports (3) are symmetrically welded to one side of the detection switch housing (1). An elliptical hole (4) is opened inside the mounting support (3). A junction box (5) is installed on the other side of the detection switch housing (1). A bearing seat (7) is installed on the side of the back shell (6). A linkage shaft (14) is rotatably connected to the inner side of the bearing seat (7). One end of the linkage shaft (14) is detachably connected to a rotating support plate (8) by screws. A connecting seat (9) is detachably connected to a baffle (11) at one end of the rotating support plate (8). A horizontal support (13) is connected to the side of the back shell (6) corresponding to the side of the rotating support plate (8). A trigger rod (15) is connected to the side of the linkage shaft (14) located inside the back shell (6). A coal blockage micro switch (16) is installed inside the back shell (6) at the position corresponding to the trigger rod (15). The detection switch housing (1) and the back shell (6) are fixedly connected to each other on one side, and a sealing block (21) is bonded to the side of the connecting side plate (2). The detection switch housing (1) and the back shell (6) are aligned and connected through the connecting side plate (2), and the connecting side plates (2) on the sides of the detection switch housing (1) and the back shell (6) are detachably connected through the connecting bolt (22).

2. The detection and alarm device for coal spillage and scattering according to claim 1, characterized in that: The detection switch housing (1) and back shell (6) are made of stainless steel. The detection switch housing (1) is installed in the hopper by the mounting bracket (3). When the rotating support plate (8) and the baffle (11) are in a horizontal state, the rotating support plate (8) is horizontally supported by the horizontal support (13), and a buffer pad is provided on the inner side of the horizontal support (13).

3. The detection and alarm device for coal spillage and scattering according to claim 1, characterized in that: The rotating support plate (8) rotates the linkage shaft (14) along the shaft seat (7). The linkage shaft (14) drives the trigger rod (15) to contact the coal blockage micro switch (16). The signal output terminal of the coal blockage micro switch (16) is connected to the signal input terminal of the central control.

4. The detection and alarm device for coal spillage and scattering according to claim 1, characterized in that: The connecting seat (9) has two parallel limiting strips (10) embedded on both sides inside. The baffle (11) is embedded between the two limiting strips (10), and the edge of the baffle (11) is detachably connected to the limiting strips (10) by a fixing bolt (12).

5. The detection and alarm device for coal spillage and scattering according to claim 4, characterized in that: The end of the rotating support plate (8) is L-shaped, and the connecting seat (9) is connected to the L-shaped section of the rotating support plate (8) by screws. The connecting seat (9) has a fitting groove inside, and the limiting strip (10) is snapped into the fitting groove. The limiting strip (10) and the connecting seat (9) are detachably connected by disassembly bolts.

6. The detection and alarm device for coal spillage and scattering according to claim 3, characterized in that: A limiting track (17) is installed on the side of the back shell (6) corresponding to the rotating support plate (8). The limiting track (17) has a guide step groove (18) inside, and a movable roller (19) is connected to the inner side of the guide step groove (18). One end of the movable roller (19) is connected to the side of the rotating support plate (8) through a connecting plate (20).

7. The detection and alarm device for coal spillage and scattering according to claim 6, characterized in that: During the deflection process, the rotating support plate (8) drives the movable roller (19) to move along the guide step groove (18) through the connecting plate (20). When the rotating support plate (8) is in a horizontal state, it cannot drive the movable roller (19) to move downward.

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