Upward conveying backstop of belt type coal conveyor

Abstract

The utility model relates to the technical field of coal conveying instruments, and discloses a belt type coal conveyor upward conveying backstop which comprises a main shaft and a supporting plate, backstop mechanisms are arranged on the outer sides of the two ends of the main shaft, a lifting mechanism is fixedly connected to the bottom of the supporting plate, each backstop mechanism comprises a main shaft, clamping assemblies are arranged at the two ends of the main shaft, and the clamping assemblies are fixedly connected to the bottom of the supporting plate. A clamping block is slidably connected to the outer side of the clamping assembly, a groove is formed in one end of the main shaft, a clamping block is slidably connected into the groove of the main shaft, a star wheel is rotatably connected to the outer side of the main shaft, two rows of grooves are formed in teeth of the star wheel, a first deviation prevention rod is fixedly connected into the groove of the star wheel, and a spring is arranged on the outer side of the first deviation prevention rod in a sleeving mode. According to the utility model, the backstop clamping block is reinforced, so that the backstop clamping block is firmly fixed and is convenient for subsequent maintenance, and the height of the backstop is adjustable by adding the connecting rod mechanism, so that the backstop is suitable for conveying belts with different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of coal conveying equipment, in particular to an upper transport backstop for a belt type coal conveyor. Background Art

[0002] Coal plays a vital role in modern society, particularly in energy supply, industrial production, and daily life. Despite the increasing use of renewable and clean energy, coal remains a primary energy source in many regions of the world. Belt conveyors are a common type of material handling equipment used in the coal industry during transportation and processing, and are widely used in coal mines, ports, power plants, metallurgy, and other industries. Their primary function is to transport coal from one location to another. Belt conveyors, particularly in applications requiring large-scale, continuous coal transportation, can provide an efficient and stable transportation solution.

[0003] A belt coal conveyor primarily consists of a conveyor belt, motor, speed reducer, rollers, protective devices, and a backstop. The conveyor belt is responsible for the actual transport of the material, while the motor is the conveyor's power source. The speed reducer reduces the speed and provides sufficient traction. The drive roller, through the motor, drives the conveyor belt. The protective devices reduce the possibility of accidents, and the backstop prevents the machine from reversing after the motor stops. These components work together to deliver coal to the appropriate location, improving efficiency and quality.

[0004] In the prior art, in order to facilitate disassembly and assembly, the clamping block of the check valve is loosely connected and easily damaged, causing production safety accidents. In addition, the height of the check valve is fixed and difficult to adjust. Therefore, a belt coal conveyor upper check valve is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a belt coal conveyor upper transport check valve, which aims to improve the problems in the prior art that the check valve block is not firmly fixed and the height of the check valve cannot be adjusted at will.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A belt-type coal conveyor upper transport check device comprises a main shaft and a supporting plate. Check mechanisms are provided on the outer sides of both ends of the main shaft, and a lifting mechanism is fixedly connected to the bottom of the supporting plate.

[0008] The anti-return mechanism includes a main shaft, two ends of the main shaft are provided with clamping assemblies, the outer side of the clamping assembly is slidably connected with a block, one end of the main shaft is provided with a slot, the block is slidably connected in the slot of the main shaft, the outer side of the main shaft is rotatably connected to the star wheel, two rows of slots are provided inside the teeth of the star wheel, an anti-deflection rod 1 is fixedly connected in the slot of the star wheel, the outer side of the anti-deflection rod 1 is sleeved with a spring, the outer side of the spring is sleeved with a ball, the outer side of the ball is slidably connected in the slot of the star wheel, the top of the ball is slidably connected with a roller, the outer side of the star wheel is rotatably connected to an outer ring, and the outer side of the roller is rotatably connected to the outer ring and the inner side of the star wheel;

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes a rotating shaft 1, the outer side of the bottom end of the rotating shaft 1 is sleeved with a thread, the bottom end of the rotating shaft 1 is threadedly connected to one end of the main shaft, the outer side of the end of the rotating shaft 1 away from the main shaft is rotatably connected to an eccentric block, the inner side of the eccentric block is sleeved on the outer side of the rotating shaft 1, the outer side of the eccentric block is fixedly connected to the handle, and the outer side of the handle is slidably connected to the outer side of the clamping block;

[0011] As a further description of the above technical solution:

[0012] The front side of the outer ring is rotatably connected to the front shell, and the side of the outer ring away from the front shell is rotatably connected to the rear shell. Holes are opened on the inner sides of the outer ring, the front shell, and the rear shell. A screw is slidably connected to the inner side of the hole. One end of the screw is threaded, and a nut is sleeved on the outer side of the screw thread.

[0013] As a further description of the above technical solution:

[0014] The bottom of the outer ring is fixedly connected to a supporting plate, the top groove of the supporting plate is slidably connected to the outside of the front shell, and the top groove of the supporting plate is slidably connected to the outside of the rear shell;

[0015] As a further description of the above technical solution:

[0016] The lifting mechanism includes a supporting plate and a bottom plate. The top two ends of the bottom plate are fixedly connected to vertical blocks. Two holes are provided on the inner side of the vertical blocks. The inner side of the holes of the vertical blocks is fixedly connected to the second anti-deflection rod. The outer side of the second anti-deflection rod is sleeved with a sliding block. The bottom of the sliding block is slidably connected to the top of the bottom plate.

[0017] As a further description of the above technical solution:

[0018] The top of the bottom plate is fixedly connected to a vertical block, the outer side of the vertical block is rotatably connected to a second rotating shaft, the outer side of the second rotating shaft is rotatably connected to a first connecting rod, both ends of the sliding block are fixedly connected to a second rotating shaft, the outer side of the second rotating shaft is rotatably connected to a second connecting rod;

[0019] As a further description of the above technical solution:

[0020] The middle sections of the connecting rod 1 and the connecting rod 2 are provided with holes, the inner sides of the holes are rotatably connected to the outer sides of the rotating shaft 2, the top end of the connecting rod 1 is rotatably connected to the rotating shaft 2, one end of the rotating shaft 2 is fixedly connected to the inner side of the vertical block, and the top end of the vertical block is fixedly connected to the supporting plate;

[0021] As a further description of the above technical solution:

[0022] The top hole of the connecting rod is rotatably connected to the rotating shaft 2, the outer sides of the two rotating shafts 2 are fixedly connected to threaded blocks, the internal threads of the threaded blocks are connected to the bidirectional threaded rod, and the outer sides of the bidirectional threaded rod are threadedly connected to the inner sides of the threaded blocks.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the clamping block is fixed by installing an eccentric block, so that the clamping block will not loosen or fall due to vibration during the rotation and backstop of the main shaft, affecting the subsequent backstop effect. In addition, its structure is simple and easy to operate, which is convenient for subsequent maintenance and replacement, saving time and effort. It is fixed more firmly, effectively reducing the frequency of subsequent maintenance.

[0025] 2. In the utility model, a connecting rod mechanism and a bidirectional threaded rod are installed under the support plate of the backstop to adjust and control the position and height of the backstop, thereby ensuring that the backstop can function normally and prevent the conveyor from reversing or running in the reverse direction, thereby improving the operating safety and efficiency of the conveyor, and can adapt to spindles of different heights for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a belt coal conveyor upper transport backstop proposed by the utility model;

[0027] Figure 2 This is a structural diagram of an eccentric block of a belt-type coal conveyor upper backstop proposed by the utility model;

[0028] Figure 3 This is a structural schematic diagram of the outer ring of a belt-type coal conveyor upper backstop proposed by the utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Main shaft; 2. Rotating shaft 1; 3. Eccentric block; 4. Handle; 5. Clamping block; 6. Star wheel; 7. Anti-deflection rod 1; 8. Spring; 9. Ball; 10. Roller; 11. Outer ring; 12. Front shell; 13. Rear shell; 14. Screw; 15. Support plate; 16. Vertical block; 17. Bottom plate; 18. Rotating shaft 2; 19. Sliding block; 20. Anti-deflection rod 2; 21. Threaded block; 22. Bidirectional threaded rod; 23. Connecting rod 1; 24. Connecting rod 2. DETAILED DESCRIPTION

[0032] 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.

[0033] Reference Figure 1 、 Figure 3 and Figure 4 The utility model provides an embodiment: a belt coal conveyor upper transport check device, comprising a main shaft 1 and a support plate 15, wherein check mechanisms are provided on the outer sides of both ends of the main shaft 1, and a lifting mechanism is fixedly connected to the bottom of the support plate 15;

[0034] The check mechanism includes a main shaft 1, which is the core component of the belt coal conveyor check valve. It not only supports the operation of the entire device, but also keeps the device stable. The surface of the main shaft 1 is treated with an anti-slip treatment and is used to drive the conveyor belt. Clamping assemblies are provided at both ends of the main shaft 1. A clamping block 5 is slidably connected to the outer side of the clamping assembly. The clamping block 5 can be used to fix the main shaft 1 and subsequent components so that the two do not rotate relative to each other, and facilitate disassembly and maintenance of subsequent components. A groove is provided at one end of the main shaft 1. A clamping block 5 is slidably connected to the groove of the main shaft 1. A star wheel 6 is rotatably connected to the outer side of the main shaft 1. The outer side of the star wheel 6 has teeth and can rotate under the drive of the main shaft 1 and the clamping block 5. It is one of the main components of the check valve. Two rows of grooves are provided inside the teeth of the star wheel 6. An anti-deflection rod 7 is fixedly connected to the groove of the star wheel 6. The anti-deflection rod 7 is used to limit the movement direction of the subsequent components to prevent the subsequent components from deviating during movement and failing to achieve their purpose.

[0035] The outer sleeve of the anti-deflection rod 7 is equipped with a spring 8, which can be compressed by subsequent components, forming a gap to facilitate the rotation of subsequent components. The outer sleeve of the spring 8 is equipped with a pin 9, which bears the elastic force of the spring 8 and is used to support subsequent components. It can slide freely within the star wheel 6. The outer side of the pin 9 is slidably connected to the groove of the star wheel 6. The top of the pin 9 is slidably connected to the roller 10. Roller 10 is one of the core components of the backstop. It rotates with the star wheel 6 when it rotates counterclockwise and prevents it from rotating when it rotates clockwise. The outer side of the star wheel 6 is rotatably connected to the outer ring 11. The outer ring 11 is rotatably connected to the star wheel 6, forming a stable bearing system, reducing friction and ensuring stable operation of the device. The roller 10 rotates between the outer ring 11 and the star wheel 6, further increasing the stability of the structure. The outer side of the roller 10 is rotatably connected to the outer ring 11 and the inner side of the star wheel 6.

[0036] The clamping assembly includes a rotating shaft 2, the bottom end of which is threaded. The rotating shaft 2 can be removed by rotation during maintenance, providing a rotation center for subsequent components and enhancing the stability of the structure. The bottom end of the rotating shaft 2 is threadedly connected to one end of the main shaft 1. An eccentric block 3 is rotatably connected to the outside of the end of the rotating shaft 2 away from the main shaft 1. The eccentric block 3 is used to clamp the clamping block 5. The inner side of the eccentric block 3 is sleeved on the outside of the rotating shaft 2. A handle 4 is fixedly connected to the outside of the eccentric block 3. The handle 4 can control the rotation of the eccentric block 3, causing it to loosen or clamp the clamping block 5, and realize quick disassembly for easy maintenance and replacement. The outer side of the handle 4 is slidably connected to the outer side of the clamping block 5.

[0037] Reference Figures 1 to 3 The front side of the outer ring 11 is rotatably connected to the front shell 12. The front shell 12 is used to prevent the star wheel 6 and the roller 10 from falling out of the outer ring 11, providing stable support for the check mechanism, and preventing dust and debris from entering the device and affecting the check effect. The side of the outer ring 11 away from the front shell 12 is rotatably connected to the rear shell 13. The rear shell 13 is used to prevent coal particles on the conveyor belt from entering the device and affecting the check effect, and helps dissipate heat to prevent high temperature from affecting the check effect. Holes are provided on the inner sides of the outer ring 11, the front shell 12, and the rear shell 13. A screw 14 is slidably connected to the inner side of the hole. One end of the screw 14 is threaded, and a nut is sleeved on the outer side of the thread of the screw 14. The screw 14 and the nut are used to fix the outer ring 11, the front shell 12, and the rear shell 13 so that they do not fall off during operation and can be easily disassembled for maintenance.

[0038] A support plate 15 is fixedly connected to the bottom of the outer ring 11. The support plate 15 is used to support and carry the above components to keep them stable and not skew. The top groove of the support plate 15 is slidably connected to the outside of the front shell 12, and the top groove of the support plate 15 is slidably connected to the outside of the rear shell 13.

[0039] The lifting mechanism includes a support plate 15 and a base plate 17. The base plate 17 has high stability, can effectively support the movement of the entire mechanism, and can reduce the displacement of the system caused by vibration during the backstop process. Vertical blocks 16 are fixedly connected to the top two ends of the base plate 17. The vertical blocks 16 are used to carry the limit components. Two holes are provided on the inner side of the vertical blocks 16. The inner side of the holes of the vertical blocks 16 is fixedly connected to the anti-deflection rod 20. The anti-deflection rod 20 is used to limit the movement of the subsequent components on their specified path, so that the subsequent components do not deviate, and the lifting mechanism works smoothly. The outer side of the anti-deflection rod 20 is provided with a sliding block 19. The sliding block 19 is used to drive the subsequent components to move. It can prevent the lifting mechanism from tilting and deviating, so that the subsequent components run according to the specified route. The bottom of the sliding block 19 is slidably connected to the top of the base plate 17.

[0040] The top of base plate 17 is fixedly connected to vertical block 16. Rotating shaft 2 18 is rotatably connected to the outer side of vertical block 16. Rotating shaft 2 18 transmits rotational motion, reduces friction, and supports rotating components. Connecting rod 1 23 is rotatably connected to the outer side of rotating shaft 18. Both ends of sliding block 19 are fixedly connected to rotating shaft 2 18. Rotating shaft 2 24 is rotatably connected to the outer side of rotating shaft 18. Connecting rods 1 23 and 24 serve as a connection and transmission mechanism, providing support and transferring force to subsequent components, allowing the device to be adjusted in height.

[0041] A hole is opened in the middle section of connecting rod 1 23 and connecting rod 2 24, the inner side of the hole is rotatably connected to the outer side of rotating shaft 2 18, the top end of connecting rod 1 23 is rotatably connected to rotating shaft 2 18, one end of rotating shaft 2 18 is fixedly connected to the inner side of vertical block 16, and the top end of vertical block 16 is fixedly connected to support plate 15.

[0042] Connecting rod 1 (23) is rotatably connected to rotating shaft 2 (18) within its top hole. Threaded blocks (21) are fixedly attached to the outer sides of the two rotating shafts (2). These blocks (21) allow the height of connecting rods 1 (23) and 2 (24) to be adjusted as the subsequent components rotate. The inner threads of these blocks (21) are connected to bidirectional threaded rods (22). Rotating these rods (22) allows for precise lifting and lowering control, ensuring efficient operation of the coal conveyor and allowing adjustments to be made for different conveyor belt types. The outer sides of the bidirectional threaded rods (22) are threaded onto the inner sides of the blocks (21).

[0043] Working principle: When the height of the backstop needs to be adjusted, rotate the bidirectional threaded rod 22. The rotation of the bidirectional threaded rod 22 drives the threaded block 21 to move in the opposite direction, so that the connecting rod 1 23 and the connecting rod 2 24 connected to the threaded block 21 rotate. The connecting rod 1 23 and the connecting rod 2 24 rotate on the rotating shaft 2 18 and are limited by the sliding block 19 on the anti-deflection rod 20, so that the device gradually rises. When the rotation of the bidirectional threaded rod 22 stops, the height of the support plate 15 will be fixed. Reverse rotation of the bidirectional threaded rod 22 can also lower the device, thereby realizing the adjustment of the height of the backstop.

[0044] When the backstop is adjusted to the appropriate height, the main shaft 1 is placed into the hole of the star wheel 6, and the block 5 is inserted. There are two fixing columns at one end of the block 5, and the fixing columns extend into the main shaft 1. Then the rotating shaft 2 is installed on the top of the main shaft 1 through threads, and the eccentric block 3 is put on the outside of the rotating shaft 2. Due to the eccentric design of the eccentric block 3, it will press the object backward after rotation. Rotating the eccentric block 3 allows the rotating shaft 2 to press the block 5 tightly into the main shaft 1 to prevent the block 5 from loosening and falling off when the main shaft 1 rotates, so that it is firmly fixed. After the block 5 is installed and fixed, the main shaft 1 rotates with the star wheel 6.

[0045] When the conveyor belt rotates counterclockwise, the spring 8 and pin 9 in the star wheel 6 are pressed down by the roller 10. At this time, the roller 10 has a larger rotation space between the outer ring 11 and the star wheel 6 and will not get stuck. When the conveyor belt rotates clockwise, the roller 10 is pushed into the narrow gap between the outer ring 11 and the star wheel 6 by the spring 8 and pin 9, causing the roller 10 to get stuck, thus achieving reverse stop.

[0046] 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 conveyor upper transport backstop, comprising a main shaft (1) and a support plate (15), characterized in that: The outer sides of both ends of the main shaft (1) are provided with check mechanisms, and the bottom of the support plate (15) is fixedly connected with a lifting mechanism; The check mechanism comprises a main shaft (1), two ends of the main shaft (1) are provided with clamping assemblies, the outer side of the clamping assembly is slidably connected to a clamping block (5), one end of the main shaft (1) is provided with a groove, the groove of the main shaft (1) is slidably connected to the clamping block (5), the outer side of the main shaft (1) is rotatably connected to a star wheel (6), the teeth of the star wheel (6) are provided with two rows of grooves, the groove of the star wheel (6) is fixedly connected to an anti-deflection rod (7), the outer side of the anti-deflection rod (7) is provided with a spring (8), the outer side of the spring (8) is provided with a ball (9), the outer side of the ball (9) is slidably connected to the groove of the star wheel (6), the top end of the ball (9) is slidably connected to a roller (10), the outer side of the star wheel (6) is rotatably connected to an outer ring (11), and the outer side of the roller (10) is rotatably connected to the outer ring (11) and the inner side of the star wheel (6).

2. The belt coal conveyor upper transport backstop according to claim 1, characterized in that: The clamping assembly comprises a rotating shaft (2), the outer side of the bottom end of the rotating shaft (2) is sleeved with a thread, the bottom end of the rotating shaft (2) is threadedly connected to one end of the main shaft (1), the outer side of the end of the rotating shaft (2) away from the main shaft (1) is rotatably connected to an eccentric block (3), the inner side of the eccentric block (3) is sleeved on the outer side of the rotating shaft (2), the outer side of the eccentric block (3) is fixedly connected to a handle (4), and the outer side of the handle (4) is slidably connected to the outer side of the clamping block (5).

3. The belt coal conveyor upper transport backstop according to claim 1, characterized in that: The front side of the outer ring (11) is rotatably connected to the front shell (12), and the side of the outer ring (11) away from the front shell (12) is rotatably connected to the rear shell (13). Holes are provided on the inner sides of the outer ring (11), the front shell (12), and the rear shell (13). A screw (14) is slidably connected to the inner side of the hole. One end of the screw (14) is provided with a thread, and a nut is sleeved on the outer side of the thread of the screw (14).

4. The belt coal conveyor upper transport backstop according to claim 3, characterized in that: The bottom of the outer ring (11) is fixedly connected to a support plate (15), the top groove of the support plate (15) is slidably connected to the outside of the front shell (12), and the top groove of the support plate (15) is slidably connected to the outside of the rear shell (13).

5. The belt coal conveyor upper transport backstop according to claim 1, characterized in that: The lifting mechanism comprises a supporting plate (15) and a bottom plate (17). The top two ends of the bottom plate (17) are fixedly connected with vertical blocks (16). Two holes are provided on the inner side of the vertical blocks (16). The inner side of the holes of the vertical blocks (16) is fixedly connected with an anti-deflection rod (20). The outer side of the anti-deflection rod (20) is provided with a sliding block (19). The bottom of the sliding block (19) is slidably connected to the top of the bottom plate (17).

6. The belt coal conveyor upper transport backstop according to claim 5, characterized in that: The top of the bottom plate (17) is fixedly connected to a vertical block (16), the outer side of the vertical block (16) is rotatably connected to a second rotating shaft (18), the outer side of the second rotating shaft (18) is rotatably connected to a first connecting rod (23), and both ends of the sliding block (19) are fixedly connected to the second rotating shaft (18), and the outer side of the second rotating shaft (18) is rotatably connected to a second connecting rod (24).

7. The belt coal conveyor upper transport backstop according to claim 6, characterized in that: The middle sections of the connecting rod 1 (23) and the connecting rod 2 (24) are provided with holes, the inner sides of the holes are rotatably connected to the outer sides of the rotating shaft 2 (18), the top end of the connecting rod 1 (23) is rotatably connected to the rotating shaft 2 (18), one end of the rotating shaft 2 (18) is fixedly connected to the inner side of the vertical block (16), and the top end of the vertical block (16) is fixedly connected to the supporting plate (15).

8. The belt coal conveyor upper transport backstop according to claim 7, characterized in that: The top end hole of the connecting rod 1 (23) is rotatably connected to the rotating shaft 2 (18), the outer sides of the two rotating shafts 2 (18) are fixedly connected to the threaded blocks (21), the inner threads of the threaded blocks (21) are connected to the bidirectional threaded rod (22), and the outer sides of the bidirectional threaded rod (22) are threadedly connected to the inner sides of the threaded blocks (21).

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