A crushing device for coal mining with automatic feeding function

Abstract

The utility model relates to the technical field of coal crushing, and specifically to a crushing device for coal mining with an automatic feeding function, comprising: a base, a top side of the base being fixedly connected with a crushing box; the setting of an anti-blocking mechanism, through the setting of a plurality of partition plates, is conducive to forming a plurality of feeding channels in a feeding frame, when a conveyor belt automatically transports the coal to the feeding frame, the plurality of feeding channels are used for feeding, which is conducive to dispersing the coal during feeding and avoiding aggregation during feeding, and at the same time, during feeding, by driving a cam to rotate continuously, and under the action of a spring, the trigger plate drives the round rod and the moving rod to move back and forth laterally, which is conducive to the reciprocating movement of the moving rod to push the coal accumulated above the partition plate back and forth, so that the coal accumulated above is loosened and falls downward through the feeding channel, thereby avoiding blockage during feeding, ensuring the coal feeding speed, and improving the coal crushing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of coal crushing, in particular to a crushing device used in coal mining with an automatic feeding function. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. In the process of coal mining, coal crushing is an indispensable operation link. The raw coal can only be transported to the next link for processing and treatment after being crushed.

[0003] The Chinese patent "A feeding structure for a coal crushing device" authorization announcement number "CN 219377446U" is provided with a first motor to drive the conveyor belt to drive the coal discharge transportation and a feeding mechanism. When the coal reaches the end of the conveyor belt and falls onto the fixed support plate, it is then pushed along the upper surface of the fixed support plate by the rotating push plate and rotates with the push plate. When the push plate pushes and rotates the coal to the discharge port, the coal automatically falls into the crushing device from the feed port for crushing to complete a feeding. There is no need for manual transportation and loading, which saves labor costs and saves time and effort.

[0004] The above scheme can realize automatic loading operation, but when it uses the push plate to push the coal on the fixed plate for unloading, the pushed coal will fall into the feed port at once, which may easily cause coal to accumulate at the feed port and cause blockage, thereby reducing the unloading speed and affecting the crushing efficiency.

[0005] Therefore, a coal mining crushing device with automatic feeding function is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a coal mining crushing device with an automatic feeding function in order to solve the above-mentioned problem, thereby improving the problem that when the coal on the fixed plate is pushed by a pushing plate for unloading, the pushed coal will fall into the feed port at one time, which easily leads to coal accumulation at the feed port and causes blockage, thereby reducing the unloading speed and affecting the crushing efficiency.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a crushing device for coal mining with automatic feeding function, comprising: a base, a crushing box is fixedly connected to one side of the top of the base, two crushing rollers are rotatably connected to the inner wall of the crushing box, a feed frame is fixedly connected to the top of the crushing box, a storage box is fixedly connected to the other side of the top of the base, a fixed frame is fixedly connected to the top of the feed frame, one end of the fixed frame is fixedly connected to one side of the storage box, a conveyor belt is installed on the inner side of the fixed frame, and an anti-blocking mechanism is arranged inside the feed frame; wherein, the anti-blocking mechanism comprises a plurality of partition plates fixedly connected to the inner wall of the feed frame, round rods are slidably connected to both sides of the partition plates, moving rods distributed in equal rows are fixedly connected to the surface of the round rods, and a driving assembly is arranged on one side of the feed frame.

[0008] Preferably, the driving assembly includes a first motor fixedly connected to one side of the feed frame, a cam is fixedly connected to the surface of the output shaft of the first motor, a spring is fixedly connected to one side of the feed frame, a trigger plate is fixedly connected to the other end of the spring, the other side of the trigger plate is in contact with the surface of the cam, and one end of the plurality of round rods passes through the feed frame and is fixedly connected to one side of the trigger plate. When feeding, the cam is driven to rotate continuously, and under the action of the spring, the trigger plate drives the round rod and the moving rod to move back and forth laterally, which is conducive to the reciprocating movement of the moving rod to move the coal accumulated above the partition back and forth, so that the coal accumulated above is loosened and falls downward through the feeding channel, thereby avoiding blockage when the coal is discharged, ensuring the feeding speed of the coal, and improving the coal crushing efficiency.

[0009] Preferably, both sides of the partition plate are provided with a slide groove, the inner wall of the slide groove is slidably connected with a slider, and the other side of the slider is fixedly connected to the surface of the round rod, which is conducive to limiting the movement of the round rod.

[0010] Preferably, a protective plate is fixedly connected to the upper end of the surface of the round rod, the protective plate is inclined, and the top of the protective plate is in contact with the surface of the partition plate, so as to prevent coal from falling between the round rod and the partition plate, ensure the stability of the round rod movement, and at the same time, be conducive to protecting the chute.

[0011] Preferably, a guide rod is fixedly connected to the top of the partition plate, and the vertical cross section of the guide rod is an isosceles triangle, thereby reducing the resistance between the coal and the partition plate when the coal is unloaded.

[0012] Preferably, the overall shape of the moving rod is "L"-shaped, which is conducive to better moving the coal piled above.

[0013] Preferably, the middle part of the other side of the trigger plate is rotatably connected with round rollers distributed in equal rows, which is helpful to reduce the friction force when the cam rotates to push the trigger plate to move.

[0014] The beneficial effects of the utility model are:

[0015] 1. The setting of the anti-blocking mechanism is conducive to forming multiple material discharge channels in the feeding frame by setting multiple partition plates. When the conveyor belt automatically transports the coal to the feeding frame, multiple material discharge channels are used for discharge, which is conducive to dispersing the coal during discharge and avoiding aggregation during discharge. At the same time, during discharge, the cam is driven to rotate continuously, and under the action of the spring, the trigger plate drives the round rod and the moving rod to move back and forth horizontally, which is conducive to the reciprocating movement of the moving rod to move the coal accumulated above the partition plate back and forth, so that the coal accumulated above is loosened and falls downward through the material discharge channel, thereby avoiding blockage during coal discharge, ensuring the coal discharge speed, and improving the coal crushing efficiency;

[0016] 2. When unloading coal, the setting of the protective plate prevents the coal from falling between the round rod and the partition plate, ensures the stability of the round rod movement, and at the same time, is conducive to protecting the chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the fixing frame, crushing box and feeding frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the anti-blocking mechanism structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the connection structure between the round rod and the trigger plate of the utility model;

[0021] Figure 5 This is an exploded view of the partition plate and the round rod of the utility model.

[0022] In the figure: 1. base; 2. crushing box; 3. crushing roller; 4. feed frame; 5. storage box; 6. fixed frame; 7. conveyor belt; 8. anti-blocking mechanism; 81. partition plate; 82. round rod; 83. moving rod; 84. driving assembly; 841. first motor; 842. cam; 843. trigger plate; 844. spring; 845. round roller; 846. slide groove; 847. slider; 848. protective plate; 849. guide rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] When implementing: Figure 1-5 As shown, a crushing device for coal mining with automatic feeding function includes: a base 1, a crushing box 2 is fixedly connected to one side of the top of the base 1, two crushing rollers 3 are rotatably connected to the inner wall of the crushing box 2, a feed frame 4 is fixedly connected to the top of the crushing box 2, a storage box 5 is fixedly connected to the other side of the top of the base 1, a fixed frame 6 is fixedly connected to the top of the feed frame 4, one end of the fixed frame 6 is fixedly connected to one side of the storage box 5, a conveyor belt 7 is installed on the inner side of the fixed frame 6, and an anti-blocking mechanism 8 is arranged inside the feed frame 4; wherein the anti-blocking mechanism 8 includes a plurality of partition plates 81 fixedly connected to the inner wall of the feed frame 4, round rods 82 are slidably connected to both sides of the partition plates 81, and moving rods 83 distributed in equal rows are fixedly connected to the surface of the round rods 82, and a driving assembly 84 is arranged on one side of the feed frame 4.

[0025] The conveyor belt 7 is composed of two rotating rollers and a transmission belt. The two rotating rollers are rotatably connected to the inner wall of the fixed frame 6. The transmission belt is transmission-connected between the two rotating rollers. A second motor is fixedly connected to one side of the storage box 5. One of the rotating rollers is fixedly connected to the output shaft of the second motor. When the second motor is started, the transmission belt and the other rotating roller are driven to rotate through one of the rotating rollers. One end of the fixed frame 6 is connected to the storage box 5, and the opening of the other end is located above the feed frame 4. When automatic loading is required, the conveyor belt 7 is driven to run, and the coal in the storage box 5 can be transported to the feed frame 4.

[0026] One end of the two crushing rollers 3 passes through the crushing box 2 and is fixedly connected with gears. The two gears are meshed and connected. One side of the crushing box 2 is fixedly connected with a third motor. The other end of one of the gears is fixedly connected to the output shaft of the third motor. When the coal is crushed, the third motor is started, and the two crushing rollers 3 are driven to rotate in opposite directions through the two gears to crush the coal. A discharge port is opened on one side of the crushing box 2, and the crushed coal can be discharged from the discharge port.

[0027] The number of partition plates 81 is set to three. Through the interaction between the inner wall of the feed frame 4 and the three partition plates 81, four feeding channels are formed inside the feed frame 4. When the coal is transported to the feed frame 4, part of the coal will enter the crushing box 2 through the four feeding channels.

[0028] like Figure 2, Figure 3 , Figure 4 and Figure 5 As shown, the driving assembly 84 includes a first motor 841 fixedly connected to one side of the feed frame 4, a cam 842 is fixedly connected to the surface of the output shaft of the first motor 841, a spring 844 is fixedly connected to one side of the feed frame 4, the other end of the spring 844 is fixedly connected to a trigger plate 843, the other side of the trigger plate 843 is in contact with the surface of the cam 842, and one end of a plurality of round rods 82 passes through the feed frame 4 and is fixedly connected to one side of the trigger plate 843.

[0029] When the coal is transported to the feed frame 4, the first motor 841 is started by the controller, and the output shaft of the first motor 841 drives the cam 842 to rotate. When the cam 842 rotates from the lowest point to the highest point and contacts the trigger plate 843, the cam 842 pushes the trigger plate 843 to move in the direction of the feed frame 4. At this time, the spring 844 is compressed. When the trigger plate 843 moves in the direction of the feed frame 4, it pushes multiple round rods 82 to move synchronously and drives the corresponding moving rods 83 to move horizontally. When the cam 842 rotates from the highest point to the lowest point and contacts the trigger plate 843, the trigger plate 843 will be reset under the action of the spring 844, thereby driving the corresponding round rod 82 and the moving rod 83 to reset. Therefore, when the cam 842 continues to rotate, under the action of the cam 842 and the spring 844, the round rod 82 drives the corresponding moving rod 83 to move back and forth in the horizontal direction, and the moving rod 83 is moved to move the coal accumulated above the partition plate 81, so that the coal is loosened and falls down.

[0030] like Figure 5 As shown, both sides of the partition plate 81 are provided with a slide groove 846 , the inner wall of the slide groove 846 is slidably connected with a slider 847 , and the other side of the slider 847 is fixedly connected to the surface of the round rod 82 .

[0031] When the round rod 82 moves, it will drive the slider 847 to slide in the slide groove 846 synchronously.

[0032] like Figure 5 As shown, a protective plate 848 is fixedly connected to the upper end of the surface of the round rod 82, and the protective plate 848 is inclined, and the top of the protective plate 848 is in contact with the surface of the partition plate 81. When the round rod 82 moves, the protective plate 848 is driven to move synchronously, and when the protective plate 848 moves, the top of the protective plate 848 is always in contact with the surface of the partition plate 81.

[0033] like Figure 4 and Figure 5 As shown, the top of the partition plate 81 is fixedly connected with a guide rod 849, and the vertical cross section of the guide rod 849 is an isosceles triangle. The bottom width of the guide rod 849 is the same as the width of the partition plate 81.

[0034] like Figure 4 and Figure 5 As shown, the overall shape of the moving rod 83 is "L" shaped. The top of the moving rod 83 is curved in an arc shape, and two adjacent moving rods 83 are staggered in the longitudinal direction.

[0035] like Figure 4 As shown, the middle of the other side of the trigger plate 843 is rotatably connected to the round rollers 845 distributed in equal rows. The surface of the round rollers 845 fits the surface of the cam 842. When the cam 842 rotates to push the trigger plate 843 to move, the cam 842 rotates to rotate the round rollers 845.

[0036] When the utility model is in use, when it is necessary to crush the coal, the conveyor belt 7 is driven to run, and the coal in the storage box 5 is transported to the feed frame 4. Part of the coal enters the crushing box 2 through the four feeding channels formed by the partition plate 81. At this time, the two crushing rollers 3 are driven to rotate in opposite directions to crush the coal. At the same time, the first motor 841 is started by the controller to drive the cam 842 to rotate. When the cam 842 rotates from the lowest point to the highest point and contacts the trigger plate 843, it pushes the trigger plate 843 to make the round rod 82 drive the corresponding moving rod 8 3 moves horizontally and compresses the spring 844. When the cam 842 rotates from the highest point to the lowest point and contacts the trigger plate 843, the trigger plate 843 will drive the corresponding round rod 82 and the moving rod 83 to reset under the action of the spring 844. Therefore, when the cam 842 continues to rotate, the trigger plate 843 will drive the round rod 82 and the moving rod 83 to move back and forth in the horizontal direction. The moving rod 83 is used to move the coal accumulated on the partition plate 81 back and forth, so that the coal is loosened and falls downward through the feeding channel, thereby avoiding blockage when the coal is fed.

[0037] It should be noted that the first motor 841, the second motor and the third motor in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the first motor 841, the second motor and the third motor can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crushing device for coal mining with automatic feeding function, characterized in that: include: A base (1), wherein a crushing box (2) is fixedly connected to one side of the top of the base (1), two crushing rollers (3) are rotatably connected to the inner wall of the crushing box (2), a feed frame (4) is fixedly connected to the top of the crushing box (2), a storage box (5) is fixedly connected to the other side of the top of the base (1), a fixed frame (6) is fixedly connected to the top of the feed frame (4), one end of the fixed frame (6) is fixedly connected to one side of the storage box (5), a conveyor belt (7) is installed on the inner side of the fixed frame (6), and an anti-blocking mechanism (8) is arranged inside the feed frame (4); The anti-blocking mechanism (8) comprises a plurality of partition plates (81) fixedly connected to the inner wall of the feed frame (4), round rods (82) are slidably connected to both sides of the partition plates (81), and movable rods (83) distributed in equal rows are fixedly connected to the surface of the round rods (82), and a driving assembly (84) is provided on one side of the feed frame (4).

2. A crushing device for coal mining with automatic feeding function according to claim 1, characterized in that: The driving assembly (84) comprises a first motor (841) fixedly connected to one side of a feed frame (4); a cam (842) is fixedly connected to the surface of an output shaft of the first motor (841); a spring (844) is fixedly connected to one side of the feed frame (4); the other end of the spring (844) is fixedly connected to a trigger plate (843); the other side of the trigger plate (843) is in contact with the surface of the cam (842); and one end of each of the plurality of round rods (82) passes through the feed frame (4) and is fixedly connected to one side of the trigger plate (843).

3. The crushing device for coal mining with automatic feeding function according to claim 1, characterized in that: Slide grooves (846) are provided on both sides of the partition plate (81), and a slider (847) is slidably connected to the inner wall of the slide groove (846), and the other side of the slider (847) is fixedly connected to the surface of the round rod (82).

4. The crushing device for coal mining with automatic feeding function according to claim 1, characterized in that: The upper end of the surface of the round rod (82) is fixedly connected with a protective plate (848), the protective plate (848) is arranged in an inclined manner, and the top end of the protective plate (848) is in contact with the surface of the partition plate (81).

5. The crushing device for coal mining with automatic feeding function according to claim 1, characterized in that: A guide rod (849) is fixedly connected to the top end of the partition plate (81), and the vertical cross-section of the guide rod (849) is an isosceles triangle.

6. The crushing device for coal mining with automatic feeding function according to claim 1, characterized in that: The overall shape of the moving rod (83) is "L"-shaped.

7. A crushing device for coal mining with automatic feeding function according to claim 2, characterized in that: The middle part of the other side of the trigger plate (843) is rotatably connected to round rollers (845) distributed in equal rows.

Images