Anti-blocking device of coal belt conveyor

Abstract

The invention provides an anti-blocking device for a coal belt conveyor, which comprises a dicing mechanism, the dicing mechanism comprises a mounting seat, a rotating shaft is rotatably mounted on the mounting seat, a dicing knife is arranged on the rotating shaft, the dicing knife is arranged on the upper side of a conveying belt of the coal conveyor, and when large coal briquettes fall off from the conveying belt, the dicing knife is driven by the rotating shaft to rotate. According to the coal crusher, coal briquettes are driven by the conveying belt to make contact with the dicing knife, the dicing knife can cut large coal briquettes into small coal briquettes, the size of the coal briquettes is reduced, the dicing mechanism is arranged above the belt of the conveyor on the rear side of the coal crusher, and when large coal briquettes on the crusher fall onto the belt, the large coal briquettes move forwards along with the belt; when the coal briquettes abut against the dicing knife on the dicing mechanism, as the position of the dicing knife is fixed, the coal briquettes on the belt move forwards along with the belt, the large coal briquettes collide with the dicing knife under the driving of the belt, and then the large coal briquettes are cut into small briquettes by the dicing knife, so that material blockage caused by the large coal briquettes in the subsequent process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary tools for coal belt conveyors, and more particularly to a coal belt conveyor anti-blocking device. Background Art

[0002] The coal belt conveyor is the main equipment for timely transporting the pulverized blended coal after pulverization to the next transfer station at the lower part of the pulverizer. Field observation found that due to the high-speed operation of the pulverizer, some coal materials are adhered to the inner cavity of the pulverizer to form hard powdered coal blocks. After the vibrator intermittently vibrates, the powdered coal blocks attached to the inner cavity instantly fall. The sudden impact of the coal materials causes the sudden increase in the amount of coal on the coal belt conveyor, resulting in uneven material volume, leading to the sudden stop of the belt and causing blockage. Due to the uneven material volume of the belt and the sudden increase in the material volume after large pieces enter the belt chute, the rotation speed of the lower belt slows down, causing the chute to return material upward. If not discovered in time, it is easy to cause blockage. In view of this, overcoming the above-mentioned defects of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0003] The present invention provides a coal belt conveyor anti-blocking device, aiming to improve the problem that it is easy to cause blockage when large coal blocks fall into the existing conveyor without timely detection.

[0004] To achieve the above object, the present invention provides a coal belt conveyor anti-blocking device, and the specific technical solution is as follows:

[0005] A coal belt conveyor anti-blocking device includes a cutting mechanism. The cutting mechanism includes a mounting seat, a rotating shaft is rotatably mounted on the mounting seat, a cutting knife is arranged on the rotating shaft, and the cutting knife is arranged on the upper side of the conveyor belt of the coal conveyor. When a relatively large coal block falls on the conveyor belt, the coal block contacts the cutting knife under the drive of the conveyor belt, and the cutting knife can cut the large coal block into small coal blocks, reducing the volume of the coal block.

[0006] In one embodiment, an adjusting mechanism is arranged on the lower side of the mounting seat. The adjusting mechanism includes a support frame, an installation cylinder is fixed on the upper side of the support frame, an installation block is fixed at the bottom end of the installation cylinder, an adjusting screw is screwed on the installation block, the upper end of the adjusting screw passes through the installation block and extends into the interior of the installation cylinder, a top plate is arranged in the installation cylinder, the lower end of the top plate abuts against the top end of the adjusting screw, a connecting rod is fixed at the upper end of the top plate, the upper side of the connecting rod passes through the top end of the installation cylinder and is fixed to the mounting seat. By rotating the adjusting screw, under the drive of the installation block, the adjusting screw can push the connecting rod upward, and then push the mounting seat upward, thereby realizing the height adjustment of the cutting knife, and further realizing the adjustment of the distance between the cutting knife and the conveyor belt.

[0007] In one embodiment, a spring is sleeved outside the connecting rod. The lower end of the spring abuts against the upper surface of the top plate, and the upper end of the spring abuts against the inner upper end of the mounting cylinder. Under the action of the spring, the top plate always abuts against the adjusting screw.

[0008] In one embodiment, a knob is fixed to the lower end of the adjusting screw, and the knob is arranged outside the lower end of the mounting cylinder.

[0009] In one embodiment, sliders are arranged on both sides of the top plate, and sliding grooves adapted to the sliders are formed on the inner wall of the mounting cylinder, and the sliders slide in the sliding grooves.

[0010] In one embodiment, a coal leveling mechanism is arranged at the rear side of the cutting mechanism. The coal leveling mechanism includes a mounting plate, and coal leveling teeth are arranged on the mounting plate. The coal leveling teeth are arranged above the conveying belt of the coal conveyor.

[0011] The beneficial effects of this embodiment are as follows:

[0012] By arranging a cutting mechanism above the belt of the conveyor at the rear side of the coal crusher, when the large coal blocks on the crusher fall onto the belt and move forward with the belt, when they abut against the cutting knives on the cutting mechanism, since the positions of the cutting knives are fixed, the coal blocks on the belt move forward with the belt, and the large coal blocks collide with the cutting knives under the drive of the belt, and then the large coal blocks are cut into small pieces by the cutting knives, avoiding blockage of the subsequent processes caused by large coal blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a schematic diagram of the positional relationship among the cutting mechanism, the adjusting mechanism and the coal leveling mechanism provided by the embodiment of the present invention;

[0015] Figure 2 is a schematic diagram of the positional relationship between the cutting mechanism and the adjusting mechanism provided by the embodiment of the present invention;

[0016] Figure 3 is a schematic diagram of the structure of the cutting mechanism provided by the embodiment of the present invention;

[0017] Figure 4 is an exploded view of the adjusting mechanism provided by the embodiment of the present invention Figure 1 ;

[0018] Figure 5 Explosion of the adjustment mechanism provided by the embodiment of the present invention Figure 2 ;

[0019] Figure 6 Schematic diagram of the internal structure of the installation cylinder provided by the embodiment of the present invention;

[0020] Figure 7 Schematic diagram of the connection relationship between the slider and the chute provided by the embodiment of the present invention;

[0021] Figure 8 Schematic diagram of the contact state between the adjustment screw and the top plate provided by the embodiment of the present invention;

[0022] Figure 9 Schematic diagram of the separated state between the adjustment screw and the top plate provided by the embodiment of the present invention;

[0023] Figure 10 Schematic diagram of the structure of the coal leveling mechanism provided by the embodiment of the present invention;

[0024] Figure 11 Schematic diagram of the positional relationship between the cutting mechanism and the conveyor belt provided by the embodiment of the present invention;

[0025] Figure 12 Schematic diagram of the positional relationship between the coal leveling mechanism and the conveyor belt provided by the embodiment of the present invention.

[0026] Explanation of reference numerals:

[0027] 100, cutting mechanism; 110, mounting seat; 120, rotating shaft; 130, cutting knife;

[0028] 200, adjustment mechanism; 210, support frame; 220, installation cylinder; 221, chute; 230, installation block; 240, adjustment screw; 241, knob; 250, top plate; 251, slider; 260, connecting rod; 261, spring;

[0029] 300, coal leveling mechanism; 310, mounting plate; 320, coal leveling teeth. Specific embodiments

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The following introduces the technical solutions provided by the embodiments of the present invention with reference to the accompanying drawings.

[0032] Please refer to Figure 1 、 Figure 2 and Figure 3 For an embodiment of the present invention, a coal belt conveyor anti-blocking device is provided, which includes a cutting mechanism 100. The cutting mechanism 100 includes a mounting seat 110. There are two mounting seats 110, and the two mounting seats 110 are distributed on both sides of the conveyor belt. A rotating shaft 120 is rotatably installed between the two mounting seats 110 through bearings. The rotating shaft 120 straddles the upper side of the belt. A cutting knife 130 is provided in the middle of the rotating shaft 120. There are multiple cutting knives 130. The cutting knives 130 are disc-shaped. The cutting knives 130 are connected by the rotating shaft 120 and play a driving role during use, reducing resistance and preventing the cutting knives 130 from scratching the belt. In addition, since the belt is provided with a chute, and the shape of the chute is a downward concave arc shape. In order to ensure that the distance between each cutting knife 130 and the chute is the same, the diameters of the cutting knives 130 are different. The diameter of the middle cutting knife 130 is the largest, and the diameters gradually decrease towards both sides (as Figure 11 shown). The cutting knives 130 are arranged on the upper side of the conveyor belt of the coal feeder. When larger coal blocks fall on the conveyor belt, the large coal blocks collide with the cutting knives 130 under the drive of the conveyor belt. The cutting knives 130 can cut the large coal blocks into small coal blocks, thereby reducing the volume of the coal blocks and avoiding subsequent blockage.

[0033] Please refer to Figures 4 - 9 It should be noted that an adjusting mechanism 200 is provided on the lower side of the mounting seat 110. The adjusting mechanism 200 includes a support frame 210. The lower end of the support frame 210 can be fixed to the ground or to the frame of the conveyor. The support frame 210 plays a fixing role. An installation cylinder 220 is fixed on the upper side of the support frame 210. The installation cylinder 220 is a cylindrical shape with an open lower end. An installation block 230 is fixed at the bottom end of the installation cylinder 220. The installation block 230 seals the lower opening of the installation cylinder 220. An adjusting screw 240 is screwed in the middle of the installation block 230. The upper end of the adjusting screw 240 passes through the installation block 230 and extends into the interior of the installation cylinder 220. A top plate 250 is slidably arranged in the installation cylinder 220. The lower end surface of the top plate 250 abuts against the top end of the adjusting screw 240. A connecting rod 260 is fixed in the middle of the upper end of the top plate 250. The upper side of the connecting rod 260 passes through the top end of the installation cylinder 220 and is fixedly connected to the lower end of the mounting seat 110. A knob 241 is fixed at the lower end of the adjusting screw 240. The knob 241 is arranged on the outer side of the lower end of the installation cylinder 220. Rotating the knob 241 on the outside can drive the adjusting screw 240 to rotate;

[0034] Please refer to Figures 4 - 9, In addition, a spring 261 is sleeved outside the connecting rod 260. The lower end of the spring 261 abuts against the upper surface of the top plate 250, and the upper end of the spring 261 abuts against the inner upper end of the mounting cylinder 220. Under the action of the spring 261, the top plate 250 always abuts against the adjusting screw 240. When encountering a relatively large coal block, under the action of the coal block, the cutting knife 130 will be pushed upward by the coal block. Then, the cutting knife 130 drives the rotating shaft 120 to move upward. Then, the rotating shaft 120 drives the mounting seat 110 to move upward. Then, the mounting seat 110 drives the connecting rod 260 to move upward. Then, the connecting rod 260 drives the top plate 250 to move upward. Then, the top plate 250 compresses the upper spring 261. Then, under the action of the downward elastic force of the spring 261, the downward pressure of the cutting knife 130 increases, and it is easier to crush the coal block. Moreover, the cutting knife 130 can automatically float up and down according to the size of the coal block, preventing the coal block from getting stuck between the cutting knife 130 and the conveyor belt. The flexible setting of the cutting knife 130 plays a role in preventing material jamming. Preferably, sliders 251 are provided on both sides of the top plate 250, and sliding grooves 221 adapted to the sliders 251 are formed on the inner wall of the mounting cylinder 220. The sliders 251 slide in the sliding grooves 221. When the top plate 250 slides up and down in the mounting cylinder 220, under the action of the sliders 251 and the sliding grooves 221, the top plate 250 slides vertically up and down inside the mounting cylinder 220, playing a role in guiding and preventing rotation.

[0035] When it is necessary to adjust the height of the cutting knife 130 upward, turn the knob 241 counterclockwise by hand. Then, the knob 241 drives the adjusting screw 240 to rotate. Under the action of the mounting block 230, the adjusting screw 240 moves upward. Then, the adjusting screw 240 pushes the top plate 250 upward. Then, the top plate 250 drives the connecting rod 260 to move upward. Then, the connecting rod 260 pushes the mounting seat 110 upward. The mounting seat 110 drives the rotating shaft 120 to move upward. Then, the rotating shaft 120 drives the cutting knife 130 to move upward, thus realizing the height adjustment of the cutting knife 130. Then, the distance between the cutting knife 130 and the conveyor belt becomes larger. On the contrary, when the knob 241 is rotated clockwise, the distance between the cutting knife 130 and the conveyor belt becomes smaller. The mobility and flexibility of the position of the cutting knife 130 are greatly improved, facilitating use.

[0036] After installing the cutting mechanism 100, it is found through working observation that the amount of material is uneven after the lump coal is crushed by the cutting knife, resulting in uneven feeding of the conveyor belt, affecting statistics. At the same time, material jamming is likely to occur in the subsequent processes.

[0037] Please refer to Figure 1 、 Figure 10 and Figure 12, In view of the above problems, a coal leveling mechanism 300 is provided at the rear side of the cutting mechanism 100. The coal leveling mechanism 300 includes a mounting plate 310 which can be fixedly installed on the frame of the conveyor. A plurality of coal leveling teeth 320 are provided on the lower side of the mounting plate 310, and there are gaps between adjacent coal leveling teeth 320. The coal leveling teeth 320 are arranged on the upper side of the conveyor belt of the coal conveyor. After the coal passes through the coal leveling teeth 320, it is leveled by the coal leveling teeth 320, so that the coal is evenly spread on the conveyor belt.

[0038] It should be noted that: the motion states, motion trajectories, etc. of each mechanism of this device can all be automatically controlled through numerical control programs or PLC programming, etc., and cooperate with position switches, etc. to achieve automatic start-stop and automatic operation. The above programs and programming are common knowledge for those skilled in the art, so they will not be described in detail here;

[0039] The specific model and specification of the cutting knife 130 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0040] The power supply of the cutting knife 130 and the whole device and its principle are clear to those skilled in the art, and will not be described in detail here.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0043] The above description is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal belt conveyor anti-blocking device, including a cutting mechanism (100), characterized in that, The cutting mechanism (100) includes a mounting base (110). A rotating shaft (120) is rotatably mounted on the mounting base (110). A cutting knife (130) is provided on the rotating shaft (120). The cutting knife (130) is arranged above the conveying belt of the coal conveyor. When a relatively large coal block falls onto the conveying belt, the coal block contacts the cutting knife (130) under the drive of the conveying belt, and the cutting knife (130) can cut the large coal block into small coal blocks, reducing the volume of the coal block.

2. The anti-blocking device for a coal belt conveyor according to claim 1, wherein A regulating mechanism (200) is provided below the mounting base (110). The regulating mechanism (200) includes a support frame (210). An installation cylinder (220) is fixed on the upper side of the support frame (210). An installation block (230) is fixed at the bottom end of the installation cylinder (220). An adjusting screw rod (240) is screwed on the installation block (230). The upper end of the adjusting screw rod (240) passes through the installation block (230) and extends into the interior of the installation cylinder (220). A top plate (250) is arranged in the installation cylinder (220). The lower end of the top plate (250) abuts against the top end of the adjusting screw rod (240). A connecting rod (260) is fixed at the upper end of the top plate (250). The upper side of the connecting rod (260) passes through the top end of the installation cylinder (220) and is fixedly connected to the mounting base (110). By rotating the adjusting screw rod (240), under the drive of the installation block (230), the adjusting screw rod (240) can push the connecting rod (260) upward, and then push the mounting base (110) upward, thereby realizing the height adjustment of the cutting knife (130), and further realizing the adjustment of the distance between the cutting knife (130) and the conveying belt.

3. The anti-blocking device for a coal belt conveyor according to claim 2, wherein, A spring (261) is sleeved outside the connecting rod (260). The lower end of the spring (261) abuts against the upper surface of the top plate (250), and the upper end of the spring (261) abuts against the inner upper end of the installation cylinder (220). Under the action of the spring (261), the top plate (250) always abuts against the adjusting screw rod (240).

4. A coal belt conveyor anti-blocking device according to claim 2, characterized in that, A knob (241) is fixed at the lower end of the adjusting screw rod (240). The knob (241) is arranged outside the lower end of the installation cylinder (220).

5. The anti-blocking device for a coal belt conveyor according to claim 2, characterized in that, Sliders (251) are arranged on both sides of the top plate (250). Sliding grooves (221) adapted to the sliders (251) are formed on the inner wall of the installation cylinder (220). The sliders (251) slide in the sliding grooves (221).

6. The anti-blocking device for a coal belt conveyor according to claim 2, characterized in that, A coal leveling mechanism (300) is arranged behind the cutting mechanism (100). The coal leveling mechanism (300) includes a mounting plate (310). Coal leveling teeth (320) are arranged on the mounting plate (310). The coal leveling teeth (320) are arranged above the conveying belt of the coal conveyor.

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