Belt coal piling backup protection device

Abstract

The utility model relates to the technical field of belt conveyor protection, and discloses a belt coal piling backup protection device which comprises a bottom plate, a conveying structure is arranged at the top end of the bottom plate, the conveying structure comprises a fixing frame, and a protection structure is arranged on one side of the top end of the conveying structure. According to the coal conveying device, in the arranged protection structure, when coal is piled on the conveying belt, a baffle can be driven to deflect, the baffle drives a blocking piece through a first rotating shaft to press a collision head to enable a travel switch to work, so that a first motor stops working, and the conveying belt stops conveying coal; conveying is stopped in time at the initial stage of coal piling, aggravation of the coal piling condition is avoided, the risks of blockage and equipment damage are reduced, the structure is relatively simple, compared with complex electronic detection equipment, maintenance is more convenient, the fault rate is low, the anti-interference capacity is high, and the coal piling device can be used for a long time in the severe working environment and is not prone to being influenced by environmental changes.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor protection, in particular to a belt coal pile backup protection device. Background Art

[0002] Belt conveyor transportation has become the main mode of transporting raw coal in coal mines. However, due to the complex underground production links, harsh production conditions, difficult management, long transportation routes, and many transfer points, mechanical accidents such as belt tearing, deviation, chute overflow and leakage, and baffle damage often occur on belt conveyors. If a shutdown signal cannot be issued in time to prevent the tearing accident from escalating when coal spills, it will cause serious losses to users.

[0003] After searching, the applicant found that a Chinese patent disclosed "a new type of belt conveyor coal pile protection device", and its announcement number is "CN218230666U". This patent mainly monitors coal piles through an actual infrared radiation device. The infrared radiation device is installed in a relatively closed space, so that the monitoring ability of the infrared radiation device in the closed space is not affected. It is worthy of large-scale promotion and use. However, the transmitter and receiver surfaces of the infrared radiation device of the device are easily covered with dust, which affects the normal radiation of the infrared. In order to ensure its detection accuracy, the surface of the device needs to be cleaned regularly, which increases the maintenance workload. In a dusty environment, more frequent maintenance may be required. For this reason, we propose a belt coal pile backup protection device. Utility Model Content

[0004] The purpose of the present utility model is to provide a backup protection device for a belt coal pile, so as to solve the problem that the surfaces of the transmitter and receiver of the infrared radiation device proposed in the above-mentioned background technology are easily covered by dust, which affects the normal radiation of infrared rays. In order to ensure its detection accuracy, the surface of the device needs to be cleaned regularly, which increases the maintenance workload. In a dusty environment, more frequent maintenance may be required.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a belt coal pile backup protection device, comprising a base plate, a conveying structure is provided at the top of the base plate, the conveying structure includes a fixed frame, a protection structure is provided on the top side of the conveying structure, the protection structure includes a bearing seat, a first rotating shaft and a mounting seat, the bearing seat is fixedly installed with a baffle and a baffle through the first rotating shaft, a travel switch is fixedly installed on one side of the mounting seat, a bumper is fixedly installed on the travel switch, and the conveying structure is provided with a spreading structure on one side of the protection structure.

[0006] As a preferred solution, the conveying structure includes a support frame, which is fixedly installed on the top of the base plate, and the fixed frame is fixedly installed on the top of the support frame. Rollers are rotatably installed at both ends of the fixed frame, and a conveyor belt is installed on the roller. A first motor is fixedly installed on the outside of the fixed frame, and the motor shaft of the first motor is fixedly connected to one end of the roller.

[0007] As a preferred solution, the bearing seat is fixedly mounted on the top of the fixing frame, the first rotating shaft is arranged through the bearing seat, and the first rotating shaft is rotatably connected to the bearing seat, the baffle is fixedly mounted on the bottom end of the first rotating shaft, the baffle is fixedly mounted on one end of the first rotating shaft, and the mounting seat is fixedly mounted on the top of the fixing frame.

[0008] As a preferred solution, the distance between the baffle and the surface of the conveyor belt is 5 cm, the travel switch and the first motor are electrically connected to the coal pile protection respectively, and the horizontal angle between the baffle and the bumper is 5°.

[0009] As a preferred solution, the unfolding structure includes a support column and a top plate, the support column is fixedly installed on the top of the fixing frame, the top plate is fixedly installed on the top of the support column, a sliding sleeve is slidably installed on the support column, the mounting frame is fixedly installed between the sliding sleeves, a screw is threadedly installed on the top plate, the end of the screw extends into the mounting frame, and the screw is rotatably connected to the mounting frame.

[0010] As a preferred solution, a second rotating shaft is rotatably installed in the mounting frame, and a first spiral blade and a second spiral blade are fixedly installed at both ends of the second rotating shaft. A second motor is fixedly installed on one side of the mounting frame, and the motor shaft of the second motor is fixedly connected to one end of the second rotating shaft.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. Through the protection structure, when coal piles up on the conveyor belt, the baffle will be driven to deflect. The baffle drives the baffle through the first rotating shaft to press the contact head to activate the travel switch, thereby stopping the first motor and stopping the conveyor belt from conveying coal. The conveyance is stopped in time at the early stage of coal pile up, avoiding the aggravation of coal pile up and reducing the risk of blockage and equipment damage. The structure is relatively simple, and compared with complex electronic detection equipment, it is easier to maintain, has a lower failure rate, and has strong anti-interference ability. It can be used for a long time in harsh working environments and is not easily affected by environmental changes.

[0013] 2. Through the setting of the spreading structure, the second motor drives the second rotating shaft to rotate, thereby rotating the first spiral blade and the second spiral blade, so that the coal in the middle of the conveyor belt is distributed to both sides, avoiding excessive accumulation of coal in the middle of the conveyor belt, thereby reducing the risk and incidence of coal piles. Reducing coal piles helps to stabilize the operation of the conveyor belt system, prevent overload and blockage, and reduce vibration and wear of the conveyor belt caused by uneven force, thereby improving transmission efficiency. The coal distribution can be adjusted in real time, greatly reducing the labor intensity of workers and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the conveying structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the protection structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the unfolded structure of the utility model.

[0018] In the figure: 1. Bottom plate; 2. Conveying structure; 21. Support frame; 22. Fixed frame; 23. Roller; 24. Conveyor belt; 25. First motor; 3. Protective structure; 31. Bearing seat; 32. First rotating shaft; 33. Baffle; 34. Baffle; 35. Mounting seat; 36. Travel switch; 37. Bumper; 4. Spreading structure; 41. Support column; 42. Top plate; 43. Sleeve; 44. Screw; 45. Mounting frame; 46. Second rotating shaft; 47. First spiral blade; 48. Second spiral blade; 49. Second motor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1:

[0021] Please see the attached Figure 1 - Attachment Figure 3A belt coal pile backup protection device includes a base plate 1, a conveying structure 2 is provided on the top of the base plate 1, and the conveying structure 2 includes a supporting frame 21 and a fixing frame 22. The supporting frame 21 is fixedly installed on the top of the base plate 1, and the fixing frame 22 is fixedly installed on the top of the supporting frame 21. Rollers 23 are rotatably installed at both ends of the fixing frame 22, and a conveyor belt 24 is installed on the roller 23. A first motor 25 is fixedly installed on the outside of the fixing frame 22, and the motor shaft of the first motor 25 is fixedly connected to one end of the roller 23.

[0022] A protective structure 3 is provided on one side of the top of the conveying structure 2, and the protective structure 3 includes a bearing seat 31, a first rotating shaft 32 and a mounting seat 35. The bearing seat 31 is fixedly installed on the top of the fixed frame 22, and the first rotating shaft 32 is arranged through the bearing seat 31, and the first rotating shaft 32 is rotatably connected to the bearing seat 31. A baffle 33 is fixedly installed on the bottom end of the first rotating shaft 32, and the surface distance between the baffle 33 and the conveyor belt 24 is 5 cm. A baffle 34 is fixedly installed on one end of the first rotating shaft 32, and the mounting seat 35 is fixedly installed on the top of the fixed frame 22, and the mounting seat 35 and the baffle 34 are on the same side. A limit switch 36 is fixedly installed on one side of the mounting seat 35, and the limit switch 36 is electrically connected to the coal pile protection. The coal pile protection belongs to the existing technology. The first motor 25 is electrically connected to the coal pile protection. A bumper 37 is fixedly installed on the limit switch 36, and the horizontal angle between the baffle 34 and the bumper 37 is 5°.

[0023] Specifically, in the protective structure 3, if coal piles up on the conveyor belt 24, the coal pile will drive the baffle 33 to deflect, and the baffle 33 will prompt the baffle 34 to press the bumper 37 through the first rotating shaft 32, thereby making the travel switch 36 work, so that the first motor 25 stops running, and the conveyor belt 24 immediately stops conveying coal. This structure stops the loss in time at the early stage of coal pile up to avoid the deterioration of the situation. It also has the advantages of simple structure, easy maintenance, low failure rate, strong anti-interference, etc., and can adapt to harsh environment for long-term use.

[0024] Example 2:

[0025] Please see the attached Figure 1 and attached Figure 4, a conveying structure 2 and a spreading structure 4 are provided on one side of the protective structure 3. The spreading structure 4 includes a support column 41 and a top plate 42. The support column 41 is fixedly mounted on the top of the fixing frame 22, and the top plate 42 is fixedly mounted on the top of the support column 41. A sliding sleeve 43 is slidably mounted on the support column 41, and a mounting frame 45 is fixedly mounted between the sliding sleeves 43. A screw 44 is threadedly mounted on the top plate 42, and the end of the screw 44 extends into the mounting frame 45, and the screw 44 is rotatably connected to the mounting frame 45. A second rotating shaft 46 is rotatably mounted in the mounting frame 45, and a first spiral blade 47 and a second spiral blade 48 are fixedly mounted at both ends of the second rotating shaft 46, respectively. The spiral directions of the first spiral blade 47 and the second spiral blade 48 are opposite, and a second motor 49 is fixedly mounted on one side of the mounting frame 45, and the motor shaft of the second motor 49 is fixedly connected to one end of the second rotating shaft 46.

[0026] Specifically, in the spreading structure 4, the second motor 49 drives the second rotating shaft 46 to rotate, driving the first spiral blade 47 and the second spiral blade 48 to operate, and distributing more coal in the middle of the conveyor belt 24 to both sides. This can avoid the coal from piling up too high in the middle, reduce the risk and incidence of coal piling, and facilitate the stable operation of the conveyor belt 24 system, reduce vibration wear, improve transmission efficiency, and can also adjust the distribution of coal in real time, reduce the labor intensity of workers, and improve work efficiency.

[0027] Working principle of the utility model: The utility model is a belt coal pile backup protection device, the coal is placed on the conveyor belt 24, the first motor 25 is started, the motor shaft of the first motor 25 drives the roller 23 to rotate, and the roller 23 drives the conveyor belt 24 to transmit, so as to convey the coal, when the coal is conveyed, the screw 44 is rotated, and the screw 44 moves in the top plate 42, so as to control the mounting frame 45 to drive the sliding sleeve 43 to slide in the support column 41, so that the first spiral blade 47 and the second spiral blade 48 are lowered to contact with the coal, the second motor 49 is started, and the motor shaft of the second motor 49 drives the second rotating shaft 46 to rotate, and the first spiral blade 47 and the second spiral blade 48 are driven to rotate by the second rotating shaft 46, so that the coal accumulated in the middle of the conveyor belt 24 is moved to the conveyor belt 24 by the rotation of the first spiral blade 47 and the second spiral blade 48. The coal is transmitted from both ends, so that the coal is spread out on the conveyor belt 24, and the height of the coal is lowered to less than 5 cm. At this time, the coal will be transmitted from the gap between the conveyor belt 24 and the baffle 33, so that the coal can be transported smoothly to prevent coal piling. When the conveyor belt 24 sends piles of coal, when the height of the coal accumulated on the conveyor belt 24 is greater than 5 cm, the coal will hit the baffle 33 when the conveyor belt 24 is transported, thereby driving the baffle 33 to deflect, and the first rotating shaft 32 is driven to rotate by the baffle 33, and the baffle 34 is driven to rotate by the first rotating shaft 32. When the deflection angle of the baffle 34 reaches 5°, the baffle 34 will press the bumper 37, and the limit switch 36 will work through the bumper 37, and the closed point of the limit switch 36 will be transmitted to the coal pile protection, controlling the first motor 25 to stop rotating, so that the conveyor belt 24 stops transporting the coal, thereby reducing the probability of the accident expanding.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A belt coal pile backup protection device, comprising a bottom plate (1), characterized in that: A conveying structure (2) is provided at the top of the base plate (1), and the conveying structure (2) includes a fixing frame (22) and a first motor (25). A protective structure (3) is provided on one side of the top of the conveying structure (2), and the protective structure (3) includes a bearing seat (31), a first rotating shaft (32) and a mounting seat (35). The bearing seat (31) is fixedly mounted with a baffle (33) and a baffle (34) through the first rotating shaft (32). A travel switch (36) is fixedly mounted on one side of the mounting seat (35), and a bumper (37) is fixedly mounted on the travel switch (36). The conveying structure (2) is provided with an unfolding structure (4) on one side of the protective structure (3).

2. The belt coal pile backup protection device according to claim 1, characterized in that: The conveying structure (2) comprises a support frame (21), the support frame (21) is fixedly mounted on the top of the bottom plate (1), the fixed frame (22) is fixedly mounted on the top of the support frame (21), rollers (23) are rotatably mounted at both ends of the fixed frame (22), a conveyor belt (24) is mounted on the roller (23), the first motor (25) is fixedly mounted on the outside of the fixed frame (22), and the motor shaft of the first motor (25) is fixedly connected to one end of the roller (23).

3. The belt coal pile backup protection device according to claim 1, characterized in that: The bearing seat (31) is fixedly mounted on the top of the fixing frame (22); the first rotating shaft (32) is arranged through the bearing seat (31), and the first rotating shaft (32) is rotatably connected to the bearing seat (31); the baffle (33) is fixedly mounted on the bottom end of the first rotating shaft (32); the baffle (34) is fixedly mounted on one end of the first rotating shaft (32); and the mounting seat (35) is fixedly mounted on the top of the fixing frame (22).

4. The belt coal pile backup protection device according to claim 1, characterized in that: The surface distance between the baffle (33) and the conveyor belt (24) is 5 cm, the travel switch (36) and the first motor (25) are electrically connected to the coal pile protection, and the horizontal angle between the baffle (34) and the bumper (37) is 5°.

5. The belt coal pile backup protection device according to claim 1, characterized in that: The unfolding structure (4) comprises a support column (41) and a top plate (42), wherein the support column (41) is fixedly mounted on the top of the fixing frame (22), and the top plate (42) is fixedly mounted on the top of the support column (41), a sliding sleeve (43) is slidably mounted on the support column (41), and a mounting frame (45) is fixedly mounted between the sliding sleeves (43), and a screw rod (44) is threadedly mounted on the top plate (42), and the end of the screw rod (44) extends into the mounting frame (45), and the screw rod (44) is rotatably connected to the mounting frame (45).

6. The belt coal pile backup protection device according to claim 5, characterized in that: A second rotating shaft (46) is rotatably mounted in the mounting frame (45), a first spiral blade (47) and a second spiral blade (48) are fixedly mounted at both ends of the second rotating shaft (46), a second motor (49) is fixedly mounted on one side of the mounting frame (45), and a motor shaft of the second motor (49) is fixedly connected to one end of the second rotating shaft (46).

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