Feeding device of mining crusher

Abstract

The utility model discloses a mining crusher feeding device which comprises a main frame, a conveying pipe, a dust falling mechanism, an anti-overloading mechanism and a spring adjusting mechanism, and the dust falling mechanism comprises a dust falling sleeve, a dust falling pipe assembly, a communicating pipe, a water supply pipe and a drainage hopper. The anti-overloading mechanism comprises an anti-overloading pipe, an anti-overloading rod, an anti-overloading groove, a stretching-in frame, a moving block and an anti-overloading spring, the spring adjusting mechanism comprises a sliding sleeve, a sliding rod, a connecting ring, a matching plate, a matching groove, a limiting ring and a rotating block, the conveying pipe is covered with the dust falling sleeve, the dust falling sleeve is combined with the multiple dust falling pipe assemblies, and water is supplied through the water supply pipe; and the anti-overload rod and the anti-overload spring are designed in a linkage mode, when overload occurs in the material conveying or crushing process, the movable block rapidly responds under the action of the spring, the stretching-in frame is made to retreat from the anti-overload groove, overload is prevented from being directly transmitted to a core component, and equipment is protected against damage.

Description

Technical Field

[0001] This utility model relates to the field of feeding technology, and more specifically, to a feeding device for a mining crusher. Background Technology

[0002] Mining crusher feeding devices are material conveying and distribution equipment specifically designed for ore crushing operations. They are mainly used to uniformly and continuously convey raw ore or materials into the crusher for crushing. These devices are widely used in mines, quarries, and mineral processing plants, and can effectively improve the working efficiency of the crusher while reducing equipment wear and blockage risks.

[0003] In existing technologies, the screens on the conveying pipes of some devices generate a large amount of dust. The lack of dust suppression mechanisms leads to the extensive spread of dust at the work site, polluting the environment and endangering workers' health. Dust particles may enter the equipment, accelerating the wear of equipment parts and shortening the equipment's service life. Dust accumulation may also affect the equipment's operating efficiency, such as clogging the screens or affecting material flow, resulting in obstructed conveying. Secondly, if overload occurs during the conveying or crushing process, the lack of an overload protection mechanism will prevent timely response, potentially damaging core components such as transmission components and conveying shafts. Overload may cause equipment shutdown, malfunction, or even mechanical loss of control, posing certain safety hazards and potentially endangering the safety of operators and on-site equipment. The lack of overload protection also leads to an increased frequency of equipment damage, significantly increasing the cost of repair or replacement parts, and increasing equipment downtime, thus affecting production efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a feeding device for a mining crusher to solve the above-mentioned technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a mining crusher, comprising a main frame, a conveying pipe, a dust suppression mechanism, an overload prevention mechanism, and a spring adjustment mechanism. The dust suppression mechanism includes a dust suppression sleeve, dust suppression pipe assemblies, a connecting pipe, a water supply pipe, and a drainage hopper. The dust suppression sleeve is fitted onto the conveying pipe, which is equipped with a screen. Multiple sets of dust suppression pipe assemblies are installed on the dust suppression sleeve, and the connecting pipe connects the multiple sets of dust suppression pipe assemblies. The water supply pipe is installed at one end of the connecting pipe, and the drainage hopper is installed at the bottom of the dust suppression sleeve. The overload prevention mechanism includes an overload prevention pipe, an overload prevention rod, an overload prevention groove, an extension frame, a moving block, and an overload prevention spring. The overload prevention rod is located on the side of the overload prevention rod. The extension frame is laterally slidably mounted on the overload prevention pipe. The moving block moves directionally within the upper longitudinal groove of the overload prevention pipe. The overload prevention spring is connected to the moving block, pushing the moving block against the extension frame, causing the extension frame to extend into the overload prevention groove, thus linking the overload prevention rod and the overload prevention pipe.

[0006] The present invention is further configured such that the spring adjusting mechanism includes a sliding sleeve, a sliding rod, a connecting ring, a mating plate, a mating groove, a limiting ring, and a rotating block. The sliding sleeve is longitudinally slidably disposed on the outer wall of the overload protection tube, and the sliding rod slides longitudinally on the side wall of the overload protection tube. The sliding rod is mounted on the sliding sleeve. The connecting ring is connected to the overload protection spring, and one end of the sliding rod is connected to the connecting ring. The limiting ring is rotatably mounted on the outer wall of the overload protection tube. The rotating block is mounted on the top of the limiting ring, and the mating plate is mounted on the bottom of the sliding sleeve. The mating plate is provided with multiple sets of mating grooves, and the rotating block can extend into different mating grooves to realize that the sliding rod pushes or pulls the spring, thereby adjusting the stiffness coefficient of the overload protection spring.

[0007] The present invention is further configured such that a discharge hopper is installed at one end of the conveying pipe and a filling hopper is installed at the top end of the conveying box. Through the screen design and the setting of the discharge hopper, the conveying pipe can effectively screen materials and discharge them smoothly, ensuring the continuity and efficiency of the conveying process.

[0008] The present invention is further configured such that a drive motor is installed on the main frame, and a transmission component is installed at the output of the drive motor. The drive motor provides a reliable power source for the device, and works with the transmission component to achieve efficient transmission, improve the power transmission efficiency of the entire device, and ensure the stable operation of the device.

[0009] The present invention is further provided that a connecting plate is installed at one end of the overload protection rod, and the connecting plate is connected to one end of the transmission assembly. The connection plate facilitates the stability of the connection.

[0010] The present invention is further configured such that the conveying pipe is internally supported by a conveying shaft, and a conveying blade is installed on the conveying shaft. The conveying shaft, through its internal support rotation design, in conjunction with the conveying blade installed thereon, can efficiently convey materials, ensure uniform flow, improve conveying efficiency, and reduce energy consumption.

[0011] The present invention is further configured such that one end of the overload protection tube is connected to the conveying shaft, and the overload protection mechanism connects the conveying shaft and the transmission assembly. The linkage design of the overload protection tube, the overload protection rod, the overload protection groove and the overload protection spring enables a rapid response and prevents equipment damage when an overload occurs during the material conveying process, thereby improving the safety and reliability of the equipment.

[0012] The present invention is further provided that side fasteners are installed on both sides of the main frame. The device is fixed in the required position by fixing the side fasteners. The side fasteners can stabilize the entire device, ensure the stability of the equipment during operation, avoid vibration or displacement, and improve safety and service life.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1) The present invention is equipped with a dust suppression mechanism, which consists of a dust suppression sleeve, a dust suppression pipe assembly, a connecting pipe, a water supply pipe and a drainage bucket. The dust suppression sleeve covers the outside of the conveying pipe and is combined with multiple sets of dust suppression pipe assemblies. Water is supplied through the water supply pipe to suppress the dust generated during the conveying process. The dust suppression mechanism washes the dust with water and discharges it into the drainage bucket, thereby reducing the pollution of the work site by dust and protecting the safety and health of equipment and personnel.

[0014] 2) This utility model is equipped with an overload protection mechanism, which consists of an overload protection pipe, an overload protection rod, an overload protection groove, an extension frame, a moving block, and an overload protection spring. The overload protection rod and the overload protection spring are linked. When an overload occurs during the conveying or crushing of materials, the moving block responds quickly under the action of the spring, causing the extension frame to exit the overload protection groove, thus preventing the overload from being directly transmitted to the core components and protecting the equipment from damage. The overload protection mechanism can respond to the overload situation of the equipment in a timely manner, avoid equipment failure or even accidents caused by overload, and improve the safety and reliability of equipment operation.

[0015] 3) This utility model is equipped with a spring adjustment mechanism, which includes a sliding sleeve, a sliding rod, a connecting ring, a mating plate, a mating groove, a limiting ring, and a rotating block. By engaging the rotating block with the mating groove on the mating plate, the sliding rod can be pulled or pushed to adjust the compression degree of the overload spring, thereby precisely adjusting the spring stiffness coefficient to adapt to different load requirements and improve the applicability of the equipment. The design of the sliding sleeve and sliding rod makes the adjustment process unnecessary without complicated disassembly; it can be adjusted simply by rotating the block, simplifying the operation and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state.

[0017] Figure 2 This is a schematic diagram of the internal structure of the conveying pipe in this utility model.

[0018] Figure 3 This is a structural schematic diagram of the overload protection connection position in this utility model.

[0019] Figure 4 This is a schematic diagram of the overload prevention mechanism and the spring adjustment mechanism in this utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the overload prevention mechanism and the spring adjustment mechanism in this utility model.

[0021] In the diagram: 1. Main frame; 2. Conveying pipe; 3. Dust suppression sleeve; 4. Dust suppression pipe assembly; 5. Connecting pipe; 6. Water supply pipe; 7. Drainage hopper; 8. Overload protection pipe; 9. Overload protection rod; 10. Overload protection groove; 11. Extension frame; 12. Moving block; 13. Overload protection spring; 14. Sliding sleeve; 15. Sliding rod; 16. Connecting ring; 17. Mating plate; 18. Mating groove; 19. Limiting ring; 20. Rotating block; 21. Discharge hopper; 22. Filling hopper; 23. Drive motor; 24. Transmission assembly; 25. Connecting plate; 26. Conveying shaft; 27. Conveying blade; 28. Side fixing frame. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0025] Please see Figures 1-5 A feeding device for a mining crusher includes a main frame 1, a conveying pipe 2, a dust suppression mechanism, an overload prevention mechanism, and a spring adjustment mechanism. The dust suppression mechanism includes a dust suppression sleeve 3, dust suppression pipe assemblies 4, a connecting pipe 5, a water supply pipe 6, and a drainage hopper 7. The dust suppression sleeve 3 is fitted onto the conveying pipe 2, and the conveying pipe 2 is equipped with a screen. Multiple sets of dust suppression pipe assemblies 4 are installed on the dust suppression sleeve 3, and the connecting pipe 5 connects the multiple sets of dust suppression pipe assemblies 4. The water supply pipe 6 is installed at one end of the connecting pipe 5, and the drainage hopper 7 is installed at the bottom of the dust suppression sleeve 3. The overload protection mechanism includes an overload protection tube 8, an overload protection rod 9, an overload protection groove 10, an extension frame 11, a moving block 12, and an overload protection spring 13. The overload protection rod 9 is located on the side of the overload protection rod 9. The extension frame 11 is laterally slidably mounted on the overload protection tube 8. The moving block 12 moves in a directional manner within the upper longitudinal groove of the overload protection tube 8. The overload protection spring 13 is connected to the moving block 12 and pushes the moving block 12 against the extension frame 11, causing the extension frame 11 to extend into the overload protection groove 10, thereby linking the overload protection rod 9 and the overload protection tube 8.

[0026] In this embodiment, the main function of the dust suppression mechanism is to reduce the dust generated during the crusher's feeding process and maintain a clean working environment. When the equipment starts, the water supply pipe 6 introduces water into the dust suppression pipe assembly 4 through the connecting pipe 5. The dust suppression pipe assembly 4 sprays water mist, which directly acts on the material, suppressing dust from rising. Through the closed design of the dust suppression sleeve 3, the water mist is controlled within the area of ​​the conveying pipe 2, effectively preventing dust diffusion. The drainage hopper 7 collects and removes excess water and waste residue, preventing water accumulation from affecting equipment operation. The overload protection rod 9 is installed on the side of the overload protection pipe 8. On the other hand, the overload protection tube 8 is the supporting part of the entire overload protection mechanism. The overload protection rod 9 works in conjunction with the extension frame 11, the moving block 12 and other components through its side. The extension frame 11 will extend into the overload protection groove 10. At this time, the overload protection spring 13 is used to push the moving block 12, which drives the extension frame 11 to extend into the overload protection groove 10, so that the overload protection rod 9 and the overload protection tube 8 are linked. When the external force is too large, that is, greater than the spring preload force, the extension rod disengages from the overload protection groove 10, and the moving block 12 moves in a direction within the upper longitudinal groove of the overload protection tube 8, realizing the disengagement of the tube and the rod, thus playing a protective role.

[0027] The spring adjustment mechanism includes a sliding sleeve 14, a sliding rod 15, a connecting ring 16, a mating plate 17, a mating groove 18, a limiting ring 19, and a rotating block 20. The sliding sleeve 14 is longitudinally slidably disposed on the outer wall of the overload protection pipe 8. The sliding rod 15 slides longitudinally on the side wall of the overload protection pipe 8 and is mounted on the sliding sleeve 14. The connecting ring 16 is connected to the overload protection spring 13, and one end of the sliding rod 15 is connected to the connecting ring 16. The limiting ring 19 is rotatably mounted on the outer wall of the overload protection pipe 8. The rotating block 20 is mounted on the top of the limiting ring 19. The mating plate 17 is mounted on the bottom of the sliding sleeve 14. The mating plate 17 is provided with multiple sets of mating grooves 18. The rotating block 20 can extend into different mating grooves 18 to realize that the sliding rod 15 pushes or pulls the spring, thereby adjusting the stiffness coefficient of the overload protection spring 13.

[0028] In this embodiment, the function of the spring adjustment mechanism is to adjust the stiffness coefficient of the overload protection spring 13, thereby controlling the sensitivity and response force of the overload protection mechanism. Through the design of the rotating block 20 and the mating plate 17, the operator can adjust the position of the sliding rod 15, so that the sliding rod 15 pushes or pulls the connecting ring 16, thereby adjusting the stiffness coefficient of the overload protection spring 13. The stiffness coefficient of the spring directly affects the response speed and pressure sensing capability of the overload protection mechanism, thus affecting the sensitivity of the overload protection system. By adjusting the spring adjustment mechanism, the protection requirements under different load conditions can be met, ensuring that the crusher equipment can operate normally under different working conditions.

[0029] Please see Figures 1-5As a supplementary embodiment of a mining crusher feeding device for dust suppression mechanism, overload prevention mechanism and spring adjustment mechanism: a discharge hopper 21 is installed at one end of the conveying pipe 2, a filling hopper 22 is installed at the top end of the conveying box, a drive motor 23 is installed on the main frame 1, and a transmission assembly 24 is installed at the output of the drive motor 23, a connecting plate 25 is installed at one end of the overload prevention rod 9, and the connecting plate 25 is connected to one end of the transmission assembly 24, a conveying shaft 26 is rotatably supported inside the conveying pipe 2, and a conveying blade 27 is installed on the conveying shaft 26, one end of the overload prevention pipe 8 is connected to the conveying shaft 26, and the overload prevention mechanism connects the conveying shaft 26 and the transmission assembly 24, and side fasteners 28 are installed on both sides of the main frame 1, and the device is fixed in the required position by fixing the side fasteners 28.

[0030] More specifically, the main frame 1 of the crusher starts operating, the drive motor 23 drives the conveyor box through the transmission assembly 24, and the material enters the conveying pipe 2 through the filling hopper 22. The dust suppression mechanism starts working, and water mist is sprayed onto the material through the dust suppression pipe assembly 4 to suppress dust. The conveying pipe 2, through the rotation of the conveying shaft 26 and the conveying blades 27, conveys the material from the feed end to the crusher. The screen device will screen according to the size of the material to ensure that the appropriate material enters the crushing system. During the material conveying process, the overload protection mechanism continuously monitors the load. If the equipment is overloaded or jammed, the overload protection rod 9 disengages from the overload protection pipe 8 to activate the overload protection mechanism in time to protect the equipment. Excess water after dust suppression is discharged through the drainage hopper 7 to keep the equipment clean and prevent water accumulation.

[0031] The working process of this utility model is as follows: When the dust suppression mechanism is in operation, its main function is to reduce the dust generated during the crusher's feeding process and maintain a clean working environment. When the equipment is started, the water supply pipe 6 introduces water into the dust suppression pipe assembly 4 through the connecting pipe 5. The dust suppression pipe assembly 4 sprays water mist, which directly acts on the material, suppressing the dust from rising. Through the closed design of the dust suppression sleeve 3, the water mist is controlled within the area of ​​the conveying pipe 2, effectively preventing the spread of dust. The drainage hopper 7 collects and removes excess water and waste residue, avoiding water accumulation that could affect the operation of the equipment.

[0032] When the overload protection mechanism is in operation, the overload protection rod 9 is installed on the side of the overload protection tube 8, which is the supporting part of the entire overload protection mechanism. The overload protection rod 9 works in conjunction with the extension frame 11, the moving block 12, and other components through its side. The extension frame 11 extends into the overload protection groove 10. At this time, the overload protection spring 13 is used to push the moving block 12, which drives the extension frame 11 to extend into the overload protection groove 10, so that the overload protection rod 9 and the overload protection tube 8 are linked. When the external force is too large, that is, greater than the spring preload force, the extension rod disengages from the overload protection groove 10, and the moving block 12 moves in a directional manner in the upper longitudinal groove of the overload protection tube 8, realizing the disengagement of the tube and the rod, thus playing a protective role.

[0033] When the spring adjustment mechanism is required to operate, its function is to adjust the stiffness coefficient of the overload protection spring 13, thereby controlling the sensitivity and response force of the overload protection mechanism. Through the design of the rotating block 20 and the mating plate 17, the operator can adjust the position of the sliding rod 15, so that the sliding rod 15 pushes or pulls the connecting ring 16, thereby adjusting the stiffness coefficient of the overload protection spring 13. The stiffness coefficient of the spring directly affects the response speed and pressure sensing capability of the overload protection mechanism, thus affecting the sensitivity of the overload protection system. By adjusting the spring adjustment mechanism, the protection requirements under different load conditions can be met, ensuring that the crusher equipment can operate normally under different working conditions.

[0034] The main frame 1 of the crusher starts operating, and the drive motor 23 drives the conveyor box through the transmission assembly 24. The material enters the conveying pipe 2 through the filling hopper 22. The dust suppression mechanism starts working, and water mist is sprayed onto the material through the dust suppression pipe assembly 4 to suppress dust. The conveying pipe 2, through the rotation of the conveying shaft 26 and the conveying blades 27, conveys the material from the feed end to the crusher. The screen device will screen according to the size of the material to ensure that suitable material enters the crushing system. During the material conveying process, the overload protection mechanism continuously monitors the load. If the equipment is overloaded or jammed, the overload protection rod 9 will disengage from the overload protection pipe 8 to activate the overload protection mechanism in time to protect the equipment. Excess water after dust suppression is discharged through the drainage hopper 7 to keep the equipment clean and prevent water accumulation.

[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a mining crusher, comprising a main frame (1), a conveying pipe (2), a dust suppression mechanism, an overload prevention mechanism, and a spring adjustment mechanism, characterized in that: The dust suppression mechanism includes a dust suppression sleeve (3), dust suppression pipe assemblies (4), a connecting pipe (5), a water supply pipe (6), and a drainage hopper (7). The dust suppression sleeve (3) is fitted onto the conveying pipe (2), and the conveying pipe (2) is equipped with a screen. Multiple sets of dust suppression pipe assemblies (4) are installed on the dust suppression sleeve (3), and the connecting pipe (5) connects the multiple sets of dust suppression pipe assemblies (4). The water supply pipe (6) is installed at one end of the connecting pipe (5), and the drainage hopper (7) is installed at the bottom of the dust suppression sleeve (3). The overload protection... The mechanism includes an overload protection tube (8), an overload protection rod (9), an overload protection groove (10), an extension frame (11), a moving block (12), and an overload protection spring (13). The overload protection rod (9) is located on the side of the overload protection rod (9). The extension frame (11) is slidably located on the overload protection tube (8). The moving block (12) moves in a directional manner in the upper longitudinal groove of the overload protection tube (8). The overload protection spring (13) is connected to the moving block (12) and pushes the moving block (12) to press against the extension frame (11).

2. The feeding device for a mining crusher according to claim 1, characterized in that: The spring adjustment mechanism includes a sliding sleeve (14), a sliding rod (15), a connecting ring (16), a mating plate (17), a mating groove (18), a limiting ring (19), and a rotating block (20). The sliding sleeve (14) is longitudinally slidably disposed on the outer wall of the overload protection pipe (8). The sliding rod (15) slides longitudinally on the side wall of the overload protection pipe (8). The sliding rod (15) is mounted on the sliding sleeve (14). The connecting ring (16) is connected to the overload protection spring (13). One end of the sliding rod (15) is connected to the connecting ring (16). The limiting ring (19) is rotatably mounted on the outer wall of the overload protection pipe (8). The rotating block (20) is mounted on the top of the limiting ring (19). The mating plate (17) is mounted on the bottom of the sliding sleeve (14). The mating plate (17) is provided with multiple sets of mating grooves (18).

3. The feeding device for a mining crusher according to claim 1, characterized in that: One end of the conveying pipe (2) is equipped with a discharge hopper (21), and the top end of the conveying box is equipped with a filling hopper (22).

4. The feeding device for a mining crusher according to claim 1, characterized in that: A drive motor (23) is installed on the main frame (1), and a transmission assembly (24) is installed on the output of the drive motor (23).

5. A feeding device for a mining crusher according to claim 4, characterized in that: One end of the overload protection rod (9) is equipped with a connecting plate (25), and the connecting plate (25) is connected to one end of the transmission assembly (24).

6. A feeding device for a mining crusher according to claim 5, characterized in that: The conveying pipe (2) is internally supported by a conveying shaft (26), and a conveying blade (27) is installed on the conveying shaft (26).

7. A feeding device for a mining crusher according to claim 6, characterized in that: One end of the overload protection tube (8) is connected to the conveyor shaft (26), and the overload protection mechanism connects the conveyor shaft (26) and the transmission assembly (24).

8. A feeding device for a mining crusher according to claim 1, characterized in that: Side brackets (28) are installed on both sides of the main frame (1), and the device is fixed in the required position by fixing the side brackets (28).

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