An apron conveyor

Abstract

The utility model relates to scraper conveyor technical field, and disclose a kind of scraper conveyor, including scraper machine body, intermediate drive frame is installed on the scraper machine body, the intermediate drive frame is fixed with motor, motor output end is fixed with coupler, coupler end side is fixed with speed reducer, the output end of speed reducer is fixed with main drive gear, the chain is engaged on the main drive gear, right middle slot is equipped on the scraper machine body, screw one is inserted in right middle slot, left middle slot is connected with cooperation in right middle slot side, pin shaft assembly is equipped between right middle slot and left middle slot, scraper assembly is installed on the chain. The utility model is flexible to move without disassembly when using, can be well adapted to the roadway floor and the environment narrow space of high-low convex uneven in coal mine, and well adapted to the roadway floor and the environment narrow space of high-low convex uneven in coal mine.

Description

Technical Field

[0001] This utility model relates to the field of scraper conveyor technology, specifically a scraper conveyor. Background Technology

[0002] In underground coal mine operations, cleaning up residual coal and slag in areas such as tunnel corners and confined spaces is a routine requirement. The cleaning locations often need to be moved frequently as the working face advances. Large transport machinery is difficult to install and use in such scenarios due to size and weight limitations. For a long time, this type of cleaning work has relied heavily on manual coal shoveling, which is not only labor-intensive but also extremely inefficient. Therefore, there is an urgent need for lightweight scraper conveyors adapted to the complex underground environment to replace manual labor and improve transport efficiency.

[0003] Existing scraper conveyors have significant drawbacks and fail to meet actual needs: On the one hand, some coal mines use lightweight scraper conveyors made of polymer materials, which, although lightweight, cannot be moved as a whole after installation. Adjusting their position requires disassembly and reassembly. Furthermore, the pure polymer material scrapers are prone to bending and breakage and cannot stably carry loads. In addition, gaps in the central trough connection can easily lead to material leakage and obstruct chain operation. When carrying loads, they are also prone to floating due to their light weight, resulting in significant limitations in their use. On the other hand, scraper conveyors with traditional steel central troughs are not only heavy and difficult to move, but their S-shaped drive mechanism results in the main drive gear shaft and the pressure wheel driven shaft being in an up-down structure, making the overall height of the central drive component too high. This makes it difficult to install and use in confined spaces or at roadway corners, and they are also prone to tipping over on uneven roadway floors, posing risks of equipment damage and personnel safety.

[0004] Therefore, we propose a scraper conveyor to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a scraper conveyor to solve the problems mentioned in the background art, such as the inability to move the existing scraper conveyor after installation, the difficulty in installing and using it in narrow spaces and corners of tunnels, and the tendency to tilt and overturn on uneven tunnel floors, which pose risks to equipment damage and personnel safety.

[0006] This utility model provides the following technical solution: a scraper conveyor, including a scraper conveyor body, an intermediate drive frame mounted on the scraper conveyor body, a motor fixed on the intermediate drive frame, a coupling fixed on the output end of the motor, a reducer fixed on the end side of the coupling, a main drive gear fixed on the output end of the reducer, a chain meshing on the main drive gear, a machine head and a machine tail respectively mounted on both sides of the scraper conveyor body, a right middle groove provided on the scraper conveyor body, a screw inserted into the right middle groove, a left middle groove connected to one side of the right middle groove, a pin assembly provided between the right middle groove and the left middle groove, and a scraper assembly mounted on the chain.

[0007] Preferably, a pressure roller is mounted on the intermediate drive frame, and two pressure rollers are symmetrically arranged. The main drive gear is arranged on the same horizontal line as the pressure roller.

[0008] Preferably, the pin assembly includes a left part of the pin inserted into the right middle groove, a right part of the pin inserted into the left middle groove, a screw 2 inserted between the left part of the pin and the right part of the pin, and a pin through hole opened on the left part of the pin.

[0009] Preferably, pin holes are provided inside both the left and right parts of the pin.

[0010] Preferably, the scraper assembly includes a scraper steel structure part, a scraper polymer part, a scraper U-shaped clip hole, and a scraper screw fixing hole. The scraper steel structure part and the scraper polymer part are fixedly connected by fixing screws. The lower part of the scraper polymer part is arranged with an inclined structure. The scraper assembly is fixedly connected to the chain through the U-shaped clip inserted in the scraper U-shaped clip hole and the fixing screw inserted in the scraper screw fixing hole.

[0011] Preferably, both the right and left central slots are equipped with a central slot tongue plate, and a tongue plate fixing screw is installed through the central slot tongue plate. Both sides of the right and left central slots are fastened with a retaining plate, and the retaining plate has a ground anchor hole.

[0012] This utility model has the following beneficial effects:

[0013] 1. This scraper conveyor uses right and left central troughs formed by extrusion of polymer materials, which significantly reduces weight compared to traditional steel central troughs. All central troughs have consistent and interchangeable structural dimensions. Combined with the stable connection of the pin assembly, the whole machine can be moved flexibly without disassembly. It can adapt well to the uneven roadway floor and confined space in underground coal mines. The operation is convenient when adjusting the position of the equipment as the working face advances, greatly reducing the amount of manual handling and installation work, and significantly reducing labor intensity.

[0014] 2. The scraper conveyor is designed with the main drive gear and pressure roller on the intermediate drive frame installed on the same horizontal line, which greatly reduces the structural height of the intermediate drive components and effectively prevents the equipment from tilting or overturning when used underground. This prevents personnel injury and machine damage caused by equipment tipping over, and ensures operational safety.

[0015] 3. The scraper conveyor ensures the strength of the scraper through the scraper assembly to resist bending and breakage. The inclined structure below the polymer section reduces the frictional resistance with the bottom of the central trough and has wear resistance. The combination of the two not only extends the service life of the scraper, but also ensures the efficient transportation of residual coal and slag, avoids frequent downtime for maintenance due to scraper damage, and improves operating efficiency.

[0016] 4. When unevenness in the tunnel causes misalignment between the left and right middle channels, the design of the pin assembly allows the pin to move slightly radially, enabling the middle channel connection structure to adapt to the tunnel terrain and preventing damage to components due to uneven stress. At the same time, the tongue plate of the middle channel can cover the gap at the connection end of the channel body, preventing material from leaking into the lower part and obstructing the chain operation. With this double protection, the transportation operation is continuous and stable, reducing equipment downtime and production losses.

[0017] 5. The equipment is easy to install, use, and move, with low safety risks. It not only improves the working environment of underground coal miners and reduces the probability of safety accidents, but also promotes the efficiency of underground operations by replacing manual coal shoveling with mechanized transportation. Furthermore, the flexible and lightweight movement of the whole machine reduces labor costs. The durable design of the scraper and the central trough, as well as the interchangeability of parts, reduces maintenance and replacement costs. The stable operation of the equipment ensures the continuity of coal mining and transportation, indirectly improving the production efficiency of coal mines. Overall, it has significant social and economic value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a top view of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the left and right middle groove structure of this utility model. Figure 1 .

[0021] Figure 4 This is a schematic diagram of the left and right middle groove structure of this utility model. Figure 2 .

[0022] Figure 5 This is a schematic diagram of the left and right middle grooves of this utility model. Figure 3 .

[0023] Figure 6 This is a schematic diagram of the scraper assembly of this utility model from the left side.

[0024] Figure 7 This is a schematic diagram of the pin assembly structure of this utility model.

[0025] In the diagram: 1. Scraper conveyor body; 2. Motor; 201. Coupling; 3. Reducer; 4. Main drive gear; 5. Pressure roller; 6. Chain; 7. Head; 71. Tail; 8. Right middle groove; 9. Screw 1; 10. Left part of pin shaft; 11. Screw 2; 12. Right part of pin shaft; 13. Pin shaft through hole; 14. Left middle groove; 15. Intermediate drive frame; 16. Scraper steel structure; 17. Scraper polymer part; 18. Scraper U-shaped clamping hole; 19. Scraper screw fixing hole; 21. Middle groove tongue plate; 22. Tongue plate fixing screw; 23. Clamping plate; 24. Ground anchor hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] This embodiment aims to address the problems of lightweight scraper conveyors made of polymer materials being unable to move as a whole, the easy bending and breakage of pure polymer scrapers, the inability to move the scraper conveyor as a whole, the easy damage of scrapers, and poor adaptability in tunnel corners and confined spaces. Please refer to [link / reference]. Figure 1 - Figure 7 A scraper conveyor includes a scraper body 1, an intermediate drive frame 15 mounted on the scraper body 1, a motor 2 fixed to the intermediate drive frame 15, a coupling 201 fixed to the output end of the motor 2, a reducer 3 fixed to the end of the coupling 201, a main drive gear 4 fixed to the output end of the reducer 3, and a chain 6 meshing with the main drive gear 4. A machine head 7 and a machine tail 71 are respectively mounted on both sides of the scraper body 1. A right central groove 8 is provided on the scraper body 1, a screw 9 is inserted into the right central groove 8, and a left central groove 14 is connected to one side of the right central groove 8. A pin assembly is provided between the right central groove 8 and the left central groove 14. A scraper assembly is mounted on the chain 6. Both the right central groove 8 and the left central groove 14 are made of polymer material extruded by an extruder. This design significantly reduces weight compared to traditional steel central grooves, facilitating the overall movement of the equipment to meet the frequent displacement requirements during the advancement of the working face.

[0029] Two pressure rollers 5 are symmetrically arranged on the intermediate drive frame 15, and the main drive gear 4 is positioned at the same horizontal line as the pressure rollers 5. This design reduces the overall height of the intermediate drive frame 15 and the power components. Compared with the tall drive frame caused by the vertical structure of the drive shaft and driven shaft of the traditional intermediate drive scraper conveyor, this design can easily adapt to the installation and movement requirements of roadway corners and narrow spaces, while reducing the risk of the equipment tilting or overturning in uneven roadways, thus ensuring operational safety.

[0030] The pin assembly includes a left pin 10 inserted into the right middle slot 8, a right pin 12 inserted into the left middle slot 14, a screw 11 inserted between the left pin 10 and the right pin 12, and a pin through hole 13 opened on the left pin 10.

[0031] Both the left 10 and right 12 of the pin have pin holes inside. All the central groove structures are the same size and can be replaced.

[0032] The scraper assembly includes a scraper steel structure section 16, a scraper polymer section 17, scraper U-shaped locking holes 18, and scraper screw fixing holes 19. The scraper steel structure section 16 and the scraper polymer section 17 are fixedly connected by fixing screws. The lower part of the scraper polymer section 17 is designed with a sloping structure. This structure can reduce the frictional resistance between the scraper and the bottom of the central trough when pushing residual coal or slag. At the same time, the polymer material has a certain degree of wear resistance and toughness. Combined with the high strength of the scraper steel structure section 16, it can not only prevent the scraper from bending and breaking, but also ensure efficient material pushing. Together with the synchronous movement of the chain 6, it can achieve stable material conveying. The scraper assembly is fixedly connected to the chain 6 through the U-shaped locking holes 18 and the fixing screws 19.

[0033] Both the right middle channel 8 and the left middle channel 14 are equipped with a middle channel tongue plate 21. A tongue plate fixing screw 22 is installed through the middle channel tongue plate 21. When the left middle channel 14 is connected to the right middle channel 8, the gap between their end faces is blocked by the tongue plate, so that coal (material) will not leak into the lower part and block the lower chain 6 from running. Both sides of the right middle channel 8 and the left middle channel 14 are fastened with a clamping plate 23. The clamping plate 23 is provided with a ground anchor hole 24.

[0034] In this embodiment: When it is necessary to clean and transport surplus coal and slag in the corners of underground roadways, narrow spaces, or as the working face advances, the scraper conveyor is required for transportation. First, the motor 2 is started. The motor 2, as the core power source of the equipment, will directly transmit the output power to the coupling 201 after starting. The coupling 201 undertakes the functions of buffering, vibration reduction and overload protection in this stage, which can avoid damage to subsequent components caused by instantaneous power impact. At the same time, it will further transmit the smooth power to the reducer 3.

[0035] After receiving the power transmitted by the coupling 201, the reducer 3 will reduce the high-speed, low-torque power output by the motor 2 and amplify the torque to make the power parameters match the operating requirements of the scraper conveyor. Since the output shaft of the reducer 3 is directly connected to the main drive gear 4, the adapted power will drive the main drive gear 4 to rotate stably in the set direction.

[0036] When the main drive gear 4 rotates, it drives the chain 6 to move through tooth meshing. It can move forward or backward according to the operation requirements. In this embodiment, the main drive gear 4 and the pressure roller 5 are installed together on the intermediate drive frame 15, and the two are strictly on the same horizontal line. The pressure roller 5 will limit the chain 6 in the vertical direction and guide it in the horizontal direction to prevent the chain 6 from deviating or skipping teeth during the movement, and ensure that the chain 6 runs stably along the trajectory in the middle groove.

[0037] Since the scraper is fixedly connected to the chain 6 through the scraper U-shaped card hole 18, the movement of the chain 6 will synchronously drive the scraper to move along the length of the middle trough. The scraper is assembled into a whole by the scraper steel structure part 16 and the scraper polymer part 17 with screws. The steel structure part ensures the strength of the scraper and avoids bending and breakage. The lower part of the polymer part has a sloping structure to reduce the frictional resistance with the bottom of the middle trough. During the movement of the scraper, it will directly push the residual coal or slag in the middle trough and transport the material from one end of the machine head 7 or the machine tail 71 to the other end to complete the material transportation operation.

[0038] Throughout the transportation process, since both the right central groove 8 and the left central groove 14 are extruded from polymer materials and have identical structural dimensions, they are stably connected by a pin assembly. The left end of the pin is inserted into the pin hole of the right central groove 8, and the right end is inserted into the pin hole of the left central groove 14, and then secured with a through bolt. If the unevenness of the underground mine roadway causes relative misalignment of the left and right central grooves 8, the left end of the pin can slightly shift radially due to the preset gap between the left end of the pin and the through bolt. This allows the central groove connection structure to adapt to the roadway terrain, preventing damage to components due to uneven stress and ensuring continuous transportation operations.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A scraper conveyor, comprising a scraper conveyor body (1), characterized in that: The scraper machine body (1) is equipped with an intermediate drive frame (15), the intermediate drive frame (15) is fixed with a motor (2), the output end of the motor (2) is fixed with a coupling (201), the end side of the coupling (201) is fixed with a reducer (3), the output end of the reducer (3) is fixed with a main drive gear (4), the main drive gear (4) is meshed with a chain (6), the scraper machine body (1) is equipped with a machine head (7) and a machine tail (71) on both sides respectively, the scraper machine body (1) is provided with a right middle groove (8), a screw (9) is inserted into the right middle groove (8), the right middle groove (8) is connected to a left middle groove (14) on one side, a pin shaft assembly is provided between the right middle groove (8) and the left middle groove (14), and a scraper assembly is installed on the chain (6).

2. The scraper conveyor according to claim 1, characterized in that: The intermediate drive frame (15) is equipped with pressure rollers (5), and two pressure rollers (5) are symmetrically arranged. The main drive gear (4) is set at the same horizontal line as the pressure rollers (5).

3. A scraper conveyor according to claim 1, characterized in that: The pin assembly includes a left pin (10) inserted into the right middle groove (8), a right pin (12) inserted into the left middle groove (14), a screw (11) inserted between the left pin (10) and the right pin (12), and a pin through hole (13) opened on the left pin (10).

4. A scraper conveyor according to claim 3, characterized in that: Both the left (10) and right (12) parts of the pin have pin holes inside.

5. A scraper conveyor according to claim 1, characterized in that: The scraper assembly includes a scraper steel structure part (16), a scraper polymer part (17), a scraper U-shaped clip hole (18), and a scraper screw fixing hole (19). The scraper steel structure part (16) and the scraper polymer part (17) are fixedly connected by fixing screws. The scraper polymer part (17) is arranged with an inclined structure at the bottom. The scraper assembly is fixedly connected to the chain (6) through the U-shaped clip inserted in the scraper U-shaped clip hole and the fixing screw inserted in the scraper screw fixing hole (19).

6. A scraper conveyor according to claim 1, characterized in that: Both the right central groove (8) and the left central groove (14) are equipped with a central groove tongue plate (21). A tongue plate fixing screw (22) is installed through the central groove tongue plate (21). Both sides of the right central groove (8) and the left central groove (14) are fastened with a clamping plate (23). An anchor hole (24) is opened on the clamping plate (23).

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