Modularized anti-blocking elbow coal dropping device

Abstract

The invention relates to a modularized anti-blocking elbow coal dropping device which comprises an elbow coal dropping device body, an adjusting mechanism is arranged at the top of the elbow coal dropping device body, and an anti-blocking auxiliary mechanism is arranged at the bottom of the elbow coal dropping device body; according to the anti-blocking coal conveying system, by arranging the anti-blocking auxiliary mechanism, the common problem that a bent pipe is blocked in a traditional coal conveying system is effectively solved, and due to the fact that coal particles are large and prone to accumulation in a traditional coal conveying pipeline, especially at the bent pipe part, the pipeline is often blocked, smooth flowing of the coal is affected, and the coal conveying efficiency is improved. The combined design of the transmission blades and the transmission wheel is adopted, it is ensured that coal can flow smoothly in the bent pipe and is not prone to accumulation and blockage through the self weight of coal and the mechanical transmission principle, meanwhile, through the combination of the magnetic attraction principle and the knocking mechanism, when coal is accumulated, a knocking rod can generate impact force through a reset spring, and therefore the coal can be knocked out. And the accumulated coal is effectively dredged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining equipment, in particular to a modular anti-blocking elbow pipe coal falling device. BACKGROUND

[0002] The elbow pipe coal falling device is a device specially designed to solve the problem of blockage of the elbow pipe part in the coal conveying pipeline. When coal is conveyed in the pipeline, due to the curved part of the pipeline, coal particles are easy to accumulate and pile up, causing blockage of the pipeline. The purpose of the elbow pipe coal falling device is to reduce or prevent coal accumulation at the elbow pipe through specific design and technical means, thereby ensuring the smoothness of the conveying pipeline and the smooth transportation of coal.

[0003] In actual implementation process, there are still some problems:

[0004] 1. By setting the automatic adjustment mechanism, the need for manual intervention is effectively reduced, and the maintenance cost is greatly reduced. In the traditional coal conveying system, the elbow pipe is often manually cleaned, which is not only cumbersome to operate, but also has safety hazards.

[0005] 2. At present, there are some anti-blocking elbow pipe technologies on the market, such as increasing the air pressure of the pipeline, using reverse flow or manual cleaning to dredge the pipeline. However, these methods have certain limitations, such as increasing the air pressure and reverse flow, which cannot completely remove the accumulated coal and easily increase energy consumption; manual cleaning is not only inefficient, but also has great safety hazards. In addition, the existing anti-blocking device is designed as a fixed type, which lacks flexibility and modular advantages, and is difficult to adapt to the diversified needs in different coal conveying environments. SUMMARY

[0006] The purpose of the present application is to provide a modular anti-blocking elbow pipe coal falling device to solve the problems of elbow pipe blockage and manual intervention proposed in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a modular anti-blocking elbow pipe coal falling device, comprising an elbow pipe coal falling device body, an adjusting mechanism is arranged at the top of the elbow pipe coal falling device body, and an anti-blocking auxiliary mechanism is arranged at the bottom of the elbow pipe coal falling device body. The anti-blocking auxiliary mechanism comprises transmission leaves, transmission wheels, transmission belts, lead screws and connecting plates. Two transmission leaves are provided with two transmission wheels on one side, transmission belts are sleeved between adjacent two transmission wheels, the inner sides of two transmission wheels are fixedly connected with the output shafts of two transmission leaves, the inner sides of the other two transmission wheels are arranged on the outer sides of two lead screws, connecting plates are threadedly connected to the two ends of two lead screws, and a speed detector, an alarm lamp, a motor and an output shaft are arranged in the adjusting mechanism. The speed detector is electrically connected with the alarm lamp, and the alarm lamp is electrically connected with the motor.

[0008] Further, the bottom of the bent pipe coal falling device body is provided with two conveying belts, the top end of the bent pipe coal falling device body is fixedly connected with a feeding hopper, and the two transmission leaves are rotationally connected to the inner wall of the feeding hopper.

[0009] Further, the feeding hopper is communicated with the inside of the bent pipe coal falling device body, the middle part of the inner wall of the feeding hopper is fixedly connected with a partition plate, the inner side of the other two transmission wheels is fixedly connected with a connecting rod, one end of the two connecting rods is fixedly connected with one end of the two lead screws respectively, and the threads at the two ends of the two lead screws are opposite.

[0010] Further, the back of the bent pipe coal falling device body is fixedly connected with a support frame, the other two transmission wheels are rotationally connected to the inner side of the support frame, and the middle part of the inner side of the support frame is fixedly connected with two limiting rods.

[0011] Further, the front of the bent pipe coal falling device body is fixedly connected with two limiting plates, the other end of the two lead screws is rotationally connected to the inner side of one of the limiting plates, and one end of the two limiting rods is fixedly connected to the inner side of the other limiting plate.

[0012] Further, the middle part of each connecting plate is fixedly connected with a reinforcing plate, the reinforcing plate is slidably connected with the limiting rod, the inner side of each connecting plate is fixedly connected with a first magnetic attraction, the inner wall of the bent pipe coal falling device body is fixedly connected with a sleeve on both sides, the inner wall bottom end of each sleeve is fixedly connected with a rubber plate, the inside of each sleeve is slidably connected with a buffer plate, and the outer side of each buffer plate is fixedly connected with a knocking rod.

[0013] Further, the middle part of each knocking rod is fixedly connected with a fixing ring, a reset spring is sleeved on the middle part of each knocking rod, one end of the reset spring is fixedly connected to the inner side of the fixing ring, the other end of the reset spring is fixedly connected with a support ring, and the support ring is fixedly connected to the inner wall of the sleeve.

[0014] Further, one end of the knocking rod penetrates through the sleeve and is fixedly connected with a second magnetic attraction, the first magnetic attraction and the second magnetic attraction are magnetically attracted and connected with each other, and the two transmission wheels are rotationally connected to the outer side of the feeding hopper.

[0015] Further, the bottom end of the motor is fixedly connected with a support plate, one end of the support plate is fixedly connected to the inner side of the bent pipe coal falling device body, and the front of the bent pipe coal falling device body is clampedly connected with a quick release plate.

[0016] Further, the output end of the motor is fixedly connected with a transmission shaft, one end of the transmission shaft penetrates through the quick-release plate and is fixedly connected with a switching plate, the two rotation speed detectors are fixedly connected to the front of the feeding hopper respectively, the detection ends of the two rotation speed detectors are connected with the output shafts of the two transmission vanes respectively, and the alarm lamp is fixedly connected to the middle part of the front of the feeding hopper.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1、In the present application, the anti-blocking auxiliary mechanism is provided, which effectively solves the common problem of pipe blockage in traditional coal conveying systems. In traditional coal conveying pipelines, especially in the curved pipe part, due to the large particle size of coal and the easy accumulation of coal, the pipeline is often blocked, affecting the smooth flow of coal. The present application adopts a combination design of transmission vanes and transmission wheels, which ensures the smooth flow of coal in the curved pipe by the self-weight of coal and the principle of mechanical transmission, and prevents accumulation and blockage. At the same time, through the combination of magnetic attraction principle and knocking mechanism, when the coal accumulates, the knocking rod will generate impact force through the return spring to effectively dredge the accumulated coal. This innovative design not only improves the flowability of coal during conveying, but also effectively reduces downtime and maintenance costs caused by blockage. By combining the transmission system with automatic adjustment function, the present application can dynamically adjust according to the changes of coal flow and pipeline state, ensuring the efficient and stable operation of the coal conveying system under various working conditions.

[0019] 2、In the present application, the automatic adjustment mechanism is provided, which effectively reduces the need for manual intervention and greatly reduces maintenance costs. In traditional coal conveying systems, pipe blockage often requires manual cleaning, which is not only cumbersome to operate, but also has safety hazards. In order to avoid this situation, the present application adopts a rotation speed detector and alarm lamp system that can monitor the rotation speed of the transmission vane in real time. When the rotation speed is too fast, the alarm lamp will issue a warning in time to prompt the operator to check and make necessary adjustments. At the same time, the motor-driven switching plate system can automatically adjust the state of the conveying pipeline to ensure uniform discharge of the two pipelines and avoid excessive accumulation of coal. Through this automatic control, the operator only needs to perform simple monitoring and a small amount of inspection, greatly reducing manual intervention and equipment maintenance frequency. This design not only improves the automation level of the system, but also reduces faults caused by improper manual operation, further reducing the maintenance and operation cost of the system. Therefore, the application of the device not only improves the economy of coal conveying, but also improves the safety, ensuring long-term stable operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0021] Figure 1 Structure diagram of the back of the present application;

[0022] Figure 2 Structure diagram of the back of the present application;

[0023] Figure 3 Structure diagram of the bottom of the present application;

[0024] Figure 4 Structure diagram of the present application Figure 3 Enlarged view of A in the present application;

[0025] Figure 5 Structure diagram of the connecting plate part of the present application;

[0026] Figure 6 Structure diagram of the present application Figure 5 Enlarged view of B in the present application;

[0027] Figure 7 Structure sectional view of the material inlet hopper part of the present application;

[0028] Figure 8 Structure diagram of the present application Figure 7 Enlarged view of C in the present application.

[0029] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0030] In the drawings: 1, conveying belt; 2, bent pipe coal falling device body; 3, anti-blocking auxiliary mechanism; 301, transmission leaf; 302, transmission wheel; 303, transmission belt; 304, support frame; 305, limiting plate; 306, sleeve; 307, connecting plate; 308, first magnetic attraction; 309, rubber plate; 310, buffer plate; 311, fixed ring; 312, reset spring; 313, support ring; 314, second magnetic attraction; 315, knocking rod; 316, reinforcing plate; 317, partition plate; 318, lead screw; 319, connecting rod; 320, limiting rod; 4, adjusting mechanism; 401, motor; 402, support plate; 403, rotation speed detector; 404, alarm lamp; 405, switching plate; 406, transmission shaft; 407, quick release plate; 5, material inlet hopper. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0032] Please refer to Figures 1 to 8 The modular anti-blocking elbow coal falling device provided by the present application, as shown in the drawings, comprises an elbow coal falling device body, an adjusting mechanism is arranged on the top of the elbow coal falling device body, an anti-blocking auxiliary mechanism is arranged on the bottom of the elbow coal falling device body, the anti-blocking auxiliary mechanism comprises transmission leaves, transmission wheels, a transmission belt, lead screws and connecting plates, two transmission wheels are arranged on one side of each of the two transmission leaves, the transmission belt is sleeved between every two adjacent transmission wheels, the inner sides of the two transmission wheels are fixedly connected with the output shafts of the two transmission leaves respectively, the inner sides of the other two transmission wheels are arranged on the outer sides of the two lead screws, the connecting plates are threadedly connected to the two ends of the two lead screws, the adjusting mechanism comprises a rotating speed detector, an alarm lamp, a motor and an output shaft, the rotating speed detector is electrically connected with the alarm lamp, and the alarm lamp is electrically connected with the motor.

[0033] Optionally, two conveying belts are arranged on the bottom of the elbow coal falling device body, and a feeding hopper is fixedly connected to the top end of the elbow coal falling device body, and the two transmission leaves are rotationally connected to the inner wall of the feeding hopper. In the actual implementation process, first, the feeding hopper is connected with the inside of the elbow coal falling device body, so that the coal can smoothly enter the inside of the elbow coal falling device body, and the coal slides into the elbow coal falling device body along the feeding hopper under the action of gravity. The design of the partition plate on the inner wall of the feeding hopper effectively separates the coal into two parts, so that the coal can uniformly enter the areas of the two transmission leaves. The transmission leaves rotate and drive the connected transmission wheels to rotate, thereby generating power to further convey the coal. At this time, the rotation of the transmission wheels drives the transmission belt to work, further drives the other transmission wheel to rotate, and then drives the connecting plate to interact with the second magnetic attraction through the lead screw.

[0034] Optionally, the inlet hopper is in communication with the interior of the elbow coal falling device body, a partition plate is fixedly connected to the middle of the inner wall of the inlet hopper, the inner sides of the other two transmission wheels are fixedly connected with connecting rods, one end of each of the two connecting rods is fixedly connected with one end of a screw rod, and the threads of the two ends of the screw rod are opposite. In actual implementation, the partition plate enables the coal to be effectively divided into two parts, which not only helps the coal to be evenly distributed in the interior of the elbow coal falling device body, but also ensures that the transmission leaf rotates more stably. The two screw rods are connected through opposite threads, which ensures that the connecting plate can move accurately under the driving of the screw rod, thereby effectively adjusting the working state of the elbow coal falling device body. The limiting rods in the middle of each connecting plate are slidingly connected, so that the connecting plate maintains an accurate movement track when running, avoiding excessive deviation. At the same time, the mutual attraction of the first magnetic attraction and the second magnetic attraction can quickly push the coal out through the impact force generated by the knocking rod when the coal is accumulated, avoiding the problem of blockage caused by coal accumulation. This design improves the reliability of coal transportation and reduces the frequency of maintenance work.

[0035] Optionally, the back of the elbow coal falling device body is fixedly connected with a support frame, the other two transmission wheels are rotatably connected to the inner side of the support frame, and two limiting rods are fixedly connected to the middle of the inner side of the support frame. In actual implementation, the two transmission wheels are rotatably connected to the inner side of the support frame, which effectively enhances the stability and structural strength of the elbow coal falling device body. The limiting rods on the inner side of the support frame ensure that the transmission wheels and other components can work normally within a set range, avoiding excessive movement or misalignment. The design of the limiting plate enables the two ends of the screw rod to be correctly connected, thereby ensuring that the coal can stably pass through the pipeline, avoiding instability caused by structural problems. This design of the elbow coal falling device body optimizes the efficiency of coal transportation, reduces the number of failures and repairs during transportation due to the stable structure, and further reduces the operating cost.

[0036] Optionally, the front of the elbow coal falling device body is fixedly connected with two limiting plates, the other ends of the two lead screws are rotatably connected to the inner sides of one of the limiting plates, and the one ends of the two limiting rods are fixedly connected to the inner sides of the other limiting plate. In actual implementation, the sliding connection of the connecting plates and the limiting rods enables each connecting plate to move stably and accurately, and the first magnetic attraction and the second magnetic attraction on the inner side of each connecting plate not only effectively control the conveying and dredging of coal through magnetic attraction, but also timely clean the coal through the impact force generated thereby to prevent blockage. In addition, the design of the sleeve, the rubber plate, the buffer plate and the knocking rod ensures the smoothness and safety of the coal during transportation. The buffer plate, through cooperation with the knocking rod, can absorb and eliminate the impact force generated by the accumulation of coal, reduce damage to the pipeline, effectively prolong the service life of the equipment, and reduce the need for manual intervention through automation design, thereby optimizing the overall economic benefits of coal transportation.

[0037] Optionally, the middle of each connecting plate is fixedly connected with a reinforcing plate, the reinforcing plate is in sliding connection with the limiting rod, the inner side of each connecting plate is fixedly connected with a first magnetic attraction, the inner wall of the elbow coal falling device body is fixedly connected with a sleeve on both sides, the inner wall bottom end of each sleeve is fixedly connected with a rubber plate, the inside of each sleeve is slidingly connected with a buffer plate, and the outer side of each buffer plate is fixedly connected with a knocking rod. In actual implementation, the middle of the knocking rod cooperates with the return spring to enable the equipment to automatically generate sufficient impact force to clean the blockage point when the coal accumulates. When the return spring is compressed, the impact force of the knocking rod can be quickly transmitted to the rubber plate, thereby reducing the stagnation and accumulation of coal in the pipeline. Through the elastic recovery of the return spring, the knocking rod will automatically reset to complete the periodic cleaning operation, thereby ensuring the continuity and stability of coal conveying. Through this design, the coal will not stagnate during transportation due to blockage, thereby reducing the need for shutdown and manual cleaning, reducing operation and maintenance costs, improving the overall efficiency of coal conveying, and ensuring efficient operation of the equipment.

[0038] Optionally, the middle of each knocking rod is fixedly connected with a fixing ring, the middle of each knocking rod is sleeved with a return spring, one end of the return spring is fixedly connected to the inner side of the fixing ring, the other end of the return spring is fixedly connected with a supporting ring, and the supporting ring is fixedly connected to the inner wall of the sleeve. In actual implementation, the knocking rod is set in the sleeve and is attracted to the second magnetic attraction, thereby forming an efficient cleaning mechanism. When the magnetic attraction changes, the knocking rod can quickly generate a cleaning effect to release the coal accumulated at the elbow, thereby avoiding system failure due to blockage. Through this design, the coal can smoothly pass through the elbow during transportation, and the equipment can ensure that no blockage occurs during long-term use.

[0039] Optionally, one end of the knocking rod penetrates through the sleeve and is fixedly connected with a second magnetic attraction, the first magnetic attraction and the second magnetic attraction are magnetically attracted and connected with each other, and the two transmission wheels are rotationally connected to the outside of the feeding hopper.

[0040] Optionally, the bottom end of the motor is fixedly connected with a support plate, one end of the support plate is fixedly connected to the inside of the body of the elbow pipe coal falling device, and the front surface of the body of the elbow pipe coal falling device is clampedly connected with a quick release plate.

[0041] Optionally, the output end of the motor is fixedly connected with a transmission shaft, one end of the transmission shaft penetrates through the quick release plate and is fixedly connected with a switching plate, the two rotation speed detectors are fixedly connected to the front surface of the feeding hopper respectively, the detection ends of the two rotation speed detectors are connected with the output shafts of the two transmission leaves respectively, and the alarm lamp is fixedly connected to the middle of the front surface of the feeding hopper.

[0042] Working principle: the working principle of the bent pipe coal falling device body starts from the top of the inlet hopper, the coal enters into the bent pipe coal falling device body through the inlet hopper, the inner wall of the inlet hopper is provided with a partition plate, the partition plate divides the coal into two parts evenly, ensures that the coal can flow into the two sides of the bent pipe coal falling device body smoothly, the weight of the coal starts to drive the transmission leaf in the bent pipe coal falling device body to rotate under the action of gravity, each transmission leaf is rotationally connected on the inner wall of the inlet hopper, the transmission leaf starts to rotate with the weight of the coal, and further drives the transmission wheel attached to the transmission leaf to rotate, the transmission wheel is connected through the transmission belt, the adjacent two transmission wheels transmit power through the transmission belt, so that the adjacent transmission wheels also start to rotate, at this time, one side of the transmission wheel is connected with the lead screw installed at the bottom of the bent pipe coal falling device body, the threads at both ends of the lead screw are opposite, when the transmission wheel rotates, the lead screw also rotates correspondingly, the rotation of the lead screw drives the connecting plate connected therewith to move, thereby driving the first magnetic attraction displacement, the movement of the first magnetic attraction generates mutual attraction with the second magnetic attraction located outside the first magnetic attraction, forming magnetic attraction, when the first magnetic attraction is displaced to the outside of the second magnetic attraction, the magnetic force drives the knocking rod to be displaced, the movement of the knocking rod compresses the return spring on the upper part of the knocking rod, the return spring stores elastic potential energy when being compressed, and restores quickly after the magnetic attraction disappears, thereby driving the knocking rod to return to the original position, when the magnetic attraction disappears, the return spring pushes the knocking rod to return to the original position, in the process of returning of the knocking rod, the knocking rod will contact with the rubber plate on the inner wall of the bent pipe coal falling device body, the rubber plate transmits the force to the whole bent pipe coal falling device body by absorbing the vibration force, thereby realizing effective knocking effect, helping to dredge the possible accumulated coal, and preventing the coal from being blocked due to accumulation, the transmission leaf can realize intermittent feeding through special design, the flow of the coal in the pipeline is effectively controlled, and the phenomenon of blockage or poor flow due to too large or too small amount of coal is avoided, each transmission leaf is composed of multiple blades, the blades can intermittently feed the coal into the pipeline, ensure that the coal is evenly distributed, and reduce the accumulation of the coal in the pipeline, the rotation speed of the transmission leaf is controlled by the adjusting mechanism in the bent pipe coal falling device body, when the rotation speed of the transmission leaf is too fast, it indicates that the discharging pressure of the bent pipe coal falling device body is too large, which may cause the coal to accumulate or block, at this time, the rotation speed detector in the bent pipe coal falling device body can detect this abnormality in time, and the alarm lamp is started to issue an alarm to remind the staff to check and adjust, when the rotation speed is too fast, after the alarm lamp issues a warning, the connected motor is automatically started, the output end of the motor adjusts the feeding pipeline in the bent pipe coal falling device body through the switching plate, so that the two pipelines can uniformly discharge, avoiding the blockage of one pipeline due to the accumulation of coal, in this process, the output shaft of the motor drives the switching plate to work through rotation, so that the two pipelines in the bent pipe coal falling device body can discharge, ensuring smooth conveying of the coal, the whole modular anti-blocking bent pipe coal falling device body drives the coal to smoothly pass through the bent pipe part through the cooperation of self-weight driving and mechanical transmission, through a plurality of technologies,Like gravity self-transmission, mechanical transmission, magnetic attraction principle, vibration knock and so on, the bent pipe coal falling device body can not only effectively avoid the blockage of coal, but also timely adjust through automatic adjusting mechanism when abnormal situation occurs, keep the stable conveying of coal, in addition, the modular design also makes the bent pipe coal falling device body can be flexibly adjusted and installed according to different application scenes, has high adaptability and maintainability.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A modular anti-clogging bend-pipe coal cutting device, comprising a bend-pipe coal cutting device body (2), characterized in that: The top of the curved coal cutting device body (2) is provided with an adjustment mechanism (4), and the bottom of the curved coal cutting device body (2) is provided with an anti-blocking auxiliary mechanism (3). The anti-blocking auxiliary mechanism (3) includes a transmission blade (301), a transmission wheel (302), a transmission belt (303), a lead screw (318), and a connecting plate (307). Two transmission wheels (302) are provided on one side of each of the two transmission blades (301), and a transmission belt (303) is sleeved between each pair of adjacent transmission wheels (302). 2) The inner side of the transmission wheel (302) is fixedly connected to the output shaft of the two transmission blades (301), and the inner side of the other two transmission wheels (302) is placed on the outside of the two lead screws (318). The two ends of the two lead screws (318) are threaded with connecting plates (307). The adjustment mechanism (4) includes a speed detector (403), an alarm light (404), a motor (401), and an output shaft. The speed detector (403) is electrically connected to the alarm light (404), and the alarm light (404) is electrically connected to the motor (401).

2. The modular anti-blocking bend coal cutting device according to claim 1, characterized in that: The bottom of the curved coal dropping device body (2) is provided with two conveyor belts (1), and the top of the curved coal dropping device body (2) is fixedly connected to a feed hopper (5). The two transmission blades (301) are rotatably connected to the inner wall of the feed hopper (5).

3. The modular anti-blocking bend coal cutting device according to claim 2, characterized in that: The feed hopper (5) is connected to the interior of the curved coal dropping device body (2). A partition plate (317) is fixedly connected to the middle of the inner wall of the feed hopper (5). The inner sides of the other two transmission wheels (302) are fixedly connected to connecting rods (319). One end of the two connecting rods (319) is fixedly connected to one end of the two lead screws (318). The threads at both ends of the two lead screws (318) are opposite.

4. The modular anti-clogging bend coal cutting device according to claim 3, characterized in that: A support frame (304) is fixedly connected to the back of the main body (2) of the curved coal cutting device, wherein the other two transmission wheels (302) are rotatably connected to the inner side of the support frame (304), and two limiting rods (320) are fixedly connected to the middle of the inner side of the support frame (304).

5. A modular anti-clogging bend coal cutting device according to claim 4, characterized in that: The front of the main body (2) of the curved coal cutting device is fixedly connected to two limiting plates (305), the other ends of the two screws (318) are rotatably connected to the inner side of one of the limiting plates (305), and one end of each of the two limiting rods (320) is fixedly connected to the inner side of the other limiting plate (305).

6. A modular anti-blocking bend coal cutting device according to claim 5, characterized in that: A reinforcing plate (316) is fixedly connected to the middle of each connecting plate (307), and the reinforcing plate (316) is slidably connected to the limiting rod (320). A first magnetic attraction (308) is fixedly connected to the inner side of each connecting plate (307). A sleeve (306) is fixedly connected to both sides of the inner wall of the curved coal dropping device body (2). A rubber plate (309) is fixedly connected to the bottom of the inner wall of each sleeve (306). A buffer plate (310) is slidably connected inside each sleeve (306). A striking rod (315) is fixedly connected to the outer side of each buffer plate (310).

7. A modular anti-blocking bend coal cutting device according to claim 6, characterized in that: Each of the striking rods (315) is fixedly connected to a fixing ring (311) in the middle, and a return spring (312) is sleeved in the middle of each striking rod (315). One end of the return spring (312) is fixedly connected to the inner side of the fixing ring (311), and the other end of the return spring (312) is fixedly connected to a support ring (313). The support ring (313) is fixedly connected to the inner wall of the sleeve (306).

8. A modular anti-clogging bend coal cutting device according to claim 7, characterized in that: One end of the striking rod (315) passes through the sleeve (306) and is fixedly connected to a second magnet (314). The first magnet (308) and the second magnet (314) are magnetically attracted to each other, and both of the transmission wheels (302) are rotatably connected to the outside of the feed hopper (5).

9. A modular anti-blocking bend coal cutting device according to claim 8, characterized in that: The bottom end of the motor (401) is fixedly connected to a support plate (402), one end of the support plate (402) is fixedly connected to the inner side of the body (2) of the curved coal dropping device, and the front side of the body (2) of the curved coal dropping device is engaged with a quick-release plate (407).

10. A modular anti-blocking bend coal cutting device according to claim 9, characterized in that: The output end of the motor (401) is fixedly connected to a drive shaft (406). One end of the drive shaft (406) passes through a quick-release plate (407) and is fixedly connected to a switching plate (405). Two speed detectors (403) are fixedly connected to the front of the feed hopper (5). The detection ends of the two speed detectors (403) are connected to the output shafts of the two drive blades (301). The alarm light (404) is fixedly connected to the center of the front of the feed hopper (5).

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