A surface coal mine conveyor

Abstract

The present application relates to the field of coal mine conveying, in particular to an open coal mine conveying device, a base is rotationally installed with a lower drag roller; the double drag roller device includes double side drag rollers; additionally, one of the two side drag rollers is a normal roller, and the other is a standby roller; the controller is provided with independent double drag roller devices on both sides of the drag roller; the pulling plate is fixed with the double drag roller support; the wheel speed sensor is fixedly arranged, and the detection end of the wheel speed sensor faces the rotating shaft of the normal roller; the controller is used for receiving the rotating speed signal of the rotating shaft of the normal roller detected by the wheel speed sensor; when the rotating shaft of the normal roller is stuck, the wheel speed sensor transmits the signal to the controller; one end of the telescopic piece is rotationally connected with the pulling plate, and the other end of the telescopic piece is rotationally connected with the rack of the conveyor; in the preset state, the normal roller is in contact with the conveyor belt; when the normal roller is stuck, the telescopic piece is used for rotating the double drag roller support, so that the standby roller is rotated to the position of the original normal roller; the stuck drag roller is automatically discovered, and the fire accident is avoided.

Description

Technical Field

[0001] This invention relates to the field of coal mine conveying, and particularly to an open-pit coal mine conveying device. Background Technology

[0002] V-shaped conveyor belts are a common type of mechanical transmission equipment. They are shaped like an inverted V, hence they are also called V-type conveyor belts or chamfered conveyor belts. V-shaped conveyor belts are widely used in industries such as mining, coal, chemicals, and metallurgy.

[0003] (See 2016201090936) The V-shaped bracket of the V-shaped conveyor belt (composed of 2, lower idler roller; 201, lower idler roller shaft; 3, left idler roller; 301, left idler roller shaft; 4, right idler roller; 401, right idler roller shaft; 5, support seat; 6, left support column; 601, left hinge; 7, right support column; 701, right hinge), among which the shafts of the left and right rollers are relatively easy to be jammed by coal ash and slag, thus preventing them from rotating normally.

[0004] Because the left and right rollers cannot rotate, the conveyor belt slides relative to the jammed rollers as it moves forward, causing the conveyor belt temperature to rise, which greatly affects the lifespan of the conveyor belt and can even lead to fire accidents in severe cases. Summary of the Invention

[0005] This invention provides an open-pit coal mine conveying device. The technical problem to be solved is how to automatically detect idler roller jamming and avoid fire accidents.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] An open-pit coal mine conveying device, wherein a lower drag rod is rotatably mounted on the base;

[0008] The double-trailer includes a double-trailer bracket, side drag rods, and a pull plate; the double-trailer bracket is rotatably connected to the base, and this rotation is called the double-trailer rotation axis; the two side drag rods are rotatably connected to the double-trailer bracket, and the distance between the double-trailer rotation axis and the two side drag rods is the same; in addition, one of the two side drag rods is the commonly used rod, and the other is the spare rod; independent double-trailer units are provided on both sides of the lower drag rod; the pull plate is fixed to the double-trailer bracket.

[0009] The wheel speed sensor is fixedly installed, with its detection end facing the shaft of the commonly used roller;

[0010] The controller is used to receive the rotational speed signal of the shaft of the common roller detected by the wheel speed sensor; when the shaft of the common roller is jammed, the wheel speed sensor transmits the signal to the controller.

[0011] One end of the telescopic component is rotatably connected to the tension plate, and the other end of the telescopic component is rotatably connected to the frame of the conveyor.

[0012] In the default state, the primary roller is in contact with the conveyor belt; when the primary roller gets stuck, the telescopic component is used to rotate the double drag roller bracket, thereby allowing the spare roller to rotate to the position of the original primary roller.

[0013] Furthermore, the elastic sleeve has an opening; when the spare stick is not in use, the elastic sleeve wraps around the spare stick; after the spare stick is rotated to the commonly used stick, the spare stick rotates out from the opening of the elastic sleeve.

[0014] Furthermore, the double drag rod bracket consists of a double drag rod shaft, a mounting end plate, and a special end plate A. The two ends of the double drag rod shaft are fixed to the mounting end plate and the special end plate A, respectively; the two ends of the two side drag rods are rotatably connected to the mounting end plate and the special end plate A.

[0015] Furthermore, the double drag rod shaft of the double drag rod bracket is rotatably connected to the base;

[0016] The pull plate is fixedly connected to the double drag rod shaft.

[0017] Furthermore, a gear surface is provided on the outer periphery of one end of the commonly used rod; the detection end of the wheel speed sensor faces the gear surface.

[0018] Furthermore, the transition plate is an arc-shaped plate. The arc surface of the arc-shaped plate is used to support the transmission belt during the transition between the commonly used and spare rollers, so that the rubber belt side of the V-shaped conveyor belt does not lack support and the items on the rubber belt do not fall off after the rubber belt side bends downward.

[0019] Furthermore, the controller is connected to the light alarm. When the wheel speed sensor transmits a signal indicating that the wheel is stuck to the controller, the controller will activate the light alarm.

[0020] The beneficial effects of this invention are as follows:

[0021] The double-roller device 200 has a primary roller and a backup roller; the double-roller device 200 is rotatably connected to the base 100; in the preset state, the primary roller is in contact with the conveyor belt; the wheel speed sensor 500 can detect whether the primary roller is jammed. When the primary roller is jammed, the controller controls the telescopic component 400 to rotate the double-roller support 210, thereby allowing the backup roller to rotate to the original position of the primary roller; at this time, the backup roller supports the belt; it automatically detects the roller jamming and avoids fire accidents. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the double drag rod 200 Figure 1 View A in the middle;

[0024] Figure 3 This is a schematic diagram showing the state of the spare stick being converted to the original, commonly used stick position.

[0025] Figure 4 Structural view of a spare rod encased in an elastic sleeve 600;

[0026] Figure 5 This is a structural view of Embodiment 2 of this application;

[0027] Appendix Label Reference Table:

[0028] Base 100;

[0029] Double drag bar device 200, double drag bar bracket 210, double drag bar shaft 211, mounting end plate 212, side drag bar 220, pulling plate 230, transition plate 240;

[0030] Lower drag bar 300; telescopic component 400; wheel speed sensor 500. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0032] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0033] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, an open-pit coal mine conveying device,

[0036] The base 100 is rotated to install the lower drag rod 300;

[0037] The double-draft rod device 200 includes a double-draft rod support 210, side drag rods 220, and a pulling plate 230. The double-draft rod support 210 is rotatably connected to the base 100, and this rotation is referred to as the double-draft rod rotation axis. The two side drag rods 220 are rotatably connected to the double-draft rod support 210, and the distance between the double-draft rod rotation axis and the two side drag rods 220 is the same. Furthermore, one of the two side drag rods 220 is a primary rod, and the other is a spare rod; the spare rod is only activated after the primary rod is jammed. Independent double-draft rod devices 200 are provided on both sides of the lower drag rod 300. The pulling plate 230 is fixed to the double-draft rod support 210.

[0038] The wheel speed sensor 500 is fixedly installed, with the detection end of the wheel speed sensor 500 facing the shaft of the commonly used roller;

[0039] The controller (not shown in the figure) is used to receive the rotational speed signal of the shaft of the common rod detected by the wheel speed sensor 500; when the shaft of the common rod is jammed, the wheel speed sensor 500 transmits the signal to the controller.

[0040] One end of the telescopic component 400 is rotatably connected to the pulling plate 230, and the other end of the telescopic component 400 is rotatably connected to the frame of the conveyor; the extension and retraction of the telescopic component 400 can cause the double drag roller 200 to rotate.

[0041] In the default state, the main roller is in contact with the conveyor belt; when the main roller gets stuck, the telescopic component 400 is used to rotate the double drag roller bracket 210, thereby allowing the spare roller to rotate to the position of the original main roller.

[0042] Furthermore, the elastic sleeve 600 has an opening; when the spare rod is idle, the elastic sleeve 600 wraps around the spare rod to prevent the rotating part of the spare rod from being jammed by coal ash; after the spare rod rotates to the commonly used rod, the spare rod rotates out from the opening of the elastic sleeve 600.

[0043] In summary, the double-roller device 200 has a primary roller and a backup roller; the double-roller device 200 is rotatably connected to the base 100; in the preset state, the primary roller is in contact with the conveyor belt; the wheel speed sensor 500 can detect whether the primary roller is jammed. When the primary roller is jammed, the controller controls the telescopic component 400 to rotate the double-roller bracket 210, thereby allowing the backup roller to rotate to the original position of the primary roller; at this time, the backup roller supports the belt; it automatically detects the roller jamming and avoids fire accidents.

[0044] Furthermore, the double drag rod bracket 210 is composed of a double drag rod shaft 211, a mounting end plate 212, and a special end plate 212A. The two ends of the double drag rod shaft 211 are fixed to the mounting end plate 212 and the special end plate 212A, respectively; the two ends of the two side drag rods 220 are rotatably connected to the mounting end plate 212 and the special end plate 212A.

[0045] Furthermore, the double drag rod shaft 211 of the double drag rod bracket 210 is rotatably connected to the base 100;

[0046] The pull plate 230 is fixedly connected to the double drag rod shaft 211.

[0047] Furthermore, a gear surface is provided on the outer periphery of one end of the commonly used rod; the detection end of the wheel speed sensor 500 faces the gear surface.

[0048] Furthermore, the telescopic component 400 is a servo electric cylinder.

[0049] Example 2

[0050] See Figure 5The transition plate 240 is an arc-shaped plate. The arc surface of the arc plate is used to support the transmission belt during the transition between the commonly used and spare rollers, so that the rubber belt side of the V-shaped conveyor belt is not lacking support and the items on the rubber belt fall off after the rubber belt side bends downward.

[0051] Furthermore, the controller is connected to the light alarm. When the wheel speed sensor 500 transmits a signal indicating that the wheel is stuck to the controller, the controller will activate the light alarm.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An open-pit coal mine conveying device, characterized in that, the base is rotationally mounted with a lower drag bar; the double-drag-bar device comprises a double-drag-bar support, a side drag bar, and a pulling plate; the double-drag-bar support is rotationally connected with the base, and the rotation is referred to as a double-drag-bar rotation axis; two side drag bars are rotationally connected with the double-drag-bar support, and the double-drag-bar rotation axis is the same distance from the two side drag bars; in addition, one of the two side drag bars is a regular bar, and the other is a standby bar; each side of the lower drag bar is provided with an independent double-drag-bar device; the pulling plate is fixed with the double-drag-bar support; a wheel speed sensor is fixedly arranged, and a detection end of the wheel speed sensor faces the rotating shaft of the regular bar; a controller is used to receive a rotating speed signal of the rotating shaft of the regular bar detected by the wheel speed sensor; when the rotating shaft of the regular bar is stuck, the wheel speed sensor transmits the signal to the controller; one end of an extension piece is rotationally connected with the pulling plate, and the other end of the extension piece is rotationally connected with a rack of a conveyor; in a preset state, the regular bar is in contact with the conveyor belt; when the regular bar is stuck, the extension piece is used to rotate the double-drag-bar support, so that the standby bar is rotated to the position of the original regular bar; wherein the idle standby bar is wrapped with an elastic sleeve, and the elastic sleeve has an opening; when the standby bar is idle, the standby bar is wrapped with the elastic sleeve; after the standby bar is rotated to the regular bar, the standby bar is rotated out of the opening of the elastic sleeve; the transition plate is an arc-shaped plate, and the arc surface of the arc-shaped plate is used to support the transmission belt during the conversion of the regular bar and the standby bar, so that the side edges of the rubber belt of the V-shaped conveyor belt are not lack of support, and the articles on the rubber belt are prevented from falling off after the side edges of the rubber belt are bent downward.

2. The open-pit coal mine conveying device according to claim 1, characterized in that, the double-drag-bar support is composed of a double-drag-bar rotation shaft, a mounting end plate, and a special end plate A; the two ends of the double-drag-bar rotation shaft are fixed with the mounting end plate and the special end plate A, respectively; and the two ends of the two side drag bars are rotationally connected with the mounting end plate and the special end plate A.

3. The open-pit coal mine conveying device according to claim 2, characterized in that, the double-drag-bar rotation shaft of the double-drag-bar support is rotationally connected with the base; the pulling plate is fixedly connected with the double-drag-bar rotation shaft.

4. The open-pit coal mine conveying device according to claim 3, characterized in that, a gear surface is arranged on an outer periphery of one end of the regular bar; and a detection end of the wheel speed sensor faces the gear surface.

5. The open-pit coal mine conveying device according to claim 4, characterized in that, the controller is connected with a light alarm; when the wheel speed sensor transmits the signal that the regular bar is stuck to the controller, the controller controls the light alarm to alarm.

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