Anti-blocking and breaking device for mining machinery
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN BAOSHAN NONFERROUS METALS & MINERALS
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-21
Smart Images

Figure CN224524905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing or similar machinery technology, specifically to a mining machinery anti-blocking crushing device. Background Technology
[0002] In the mining and mineral processing industries, crushing equipment is used to reduce the particle size of ore. Traditional mining crushing devices typically consist of a crushing box and a drive unit, using crushing rollers to crush the ore. However, this single crushing method has many limitations.
[0003] During the crushing process, the unevenness of ore hardness, shape, and particle size can easily lead to material accumulation and blockage within the crushing chamber, especially when crushing ores with high hardness or irregular shapes, where blockage in a single crushing chamber is particularly prominent. Furthermore, traditional crushing devices typically use a simple discharge port to directly discharge the crushed material, which easily leads to material accumulation, especially at the discharge port, where material accumulation further exacerbates the blockage problem. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a mining machinery anti-blocking crushing device, comprising a main crushing box, a suspension plate fixed to the outer wall of the main crushing box, a feed hopper connected to the main crushing box, a drive motor installed on the main crushing box, a rotating rod extending into the main crushing box connected to the output end of the drive motor, and a main crushing cutter fixed to the outer side of the rotating rod; the bottom of the main crushing box is open, and through grooves are opened at the bottom of the two opposite side walls of the main crushing box, with two receiving plates slidably connected to the grooves; a smaller secondary crushing box is set below the main crushing box, and the main crushing box and the secondary crushing box are fixed together by a connecting box, with the rotating rod extending into the secondary crushing box, and semi-circular grooves for the rotating rod to pass through at the ends of the two receiving plates, with a secondary crushing cutter fixed to the outer side of the part of the rotating rod in the secondary crushing box, and a discharge pipe fixed to the bottom of the rotating rod.
[0005] Furthermore, a receiving box is installed below the secondary crushing box, and a dredging rod is installed between the discharge pipe and the receiving box. A long plate is fixed to the bottom of the dredging rod, and linear actuators are installed below both ends of the long plate. The telescopic ends of the linear actuators are fixed to the long plate through a mounting bracket.
[0006] Furthermore, the cross-section of the long plate is triangular.
[0007] Furthermore, two leak-proof plates are symmetrically fixed on the long plate, with the leak-proof plates positioned above the edges of both ends of the receiving box.
[0008] Furthermore, two mounting seats are fixed to the outer wall of the secondary crushing box, and electric push rods are installed on the mounting seats. The telescopic ends of the two electric push rods are fixed to the ends of the two receiving plates respectively through connecting frames.
[0009] The beneficial effects of this utility model are as follows: 1. By setting up a main crushing box and a secondary crushing box, two-stage crushing of ore is achieved. The ore is first initially crushed by the main crushing roller, and then further crushed by the secondary crushing roller. Compared with traditional single-layer crushing devices, this device can crush the ore into finer and more uniform pieces, reducing the risk of ore accumulation and blockage during the crushing process.
[0010] 2. The unblocking rod and linear actuator between the discharge pipe and the receiving box form an unblocking device. Driven by the linear actuator, the unblocking rod can unblock the material in the discharge pipe, effectively preventing the material from accumulating and blocking in the discharge pipe. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 1 A schematic diagram of the side structure of the medium-length plate.
[0012] The reference numerals in the attached drawings are explained as follows: 1. Main crushing box; 2. Auxiliary crushing box; 3. Receiving box; 4. Suspension plate; 5. Feed hopper; 6. Drive motor; 7. Rotary rod; 8. Main crushing roller; 9. Receiving plate; 10. Auxiliary crushing roller; 11. Discharge pipe; 12. Unblocking rod; 13. Long plate; 14. Linear actuator; 15. Leak-proof plate; 16. Mounting base; 17. Electric push rod; 18. Connecting box. Detailed Implementation
[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0015] The present invention will be further described below with reference to the accompanying drawings: Mining machinery anti-clogging crushing devices, such as Figure 1 and Figure 2 As shown, the system includes a main crushing box 1, with a suspension plate 4 fixed to its outer wall. A feed hopper 5 is connected to the main crushing box 1. A drive motor 6 is installed on the main crushing box 1, and the output end of the drive motor 6 is connected to a rotating rod 7 extending into the main crushing box 1. A main crushing roller cutter 8 is fixed to the outer side of the rotating rod 7. The main crushing box 1 has an opening at the bottom, and through grooves are opened at the bottom of the two opposite side walls. Two receiving plates 9 are slidably connected to the grooves. Two mounting seats 16 are fixed to the outer wall of the auxiliary crushing box 2. Electric push rods 17 are installed on the 16. The telescopic ends of the two electric push rods 17 are fixed to the ends of the two receiving plates 9 respectively through the connecting frame. A smaller secondary crushing box 2 is set below the main crushing box 1. The main crushing box 1 and the secondary crushing box 2 are fixed together by the connecting box 18. The rotating rod 7 extends into the secondary crushing box 2. The ends of the two receiving plates 9 are provided with semi-circular grooves for the rotating rod 7 to pass through. The secondary crushing roller 10 is fixed on the outer side of the part of the rotating rod 7 in the secondary crushing box 2. The discharge pipe 11 is fixed at the bottom of the rotating rod 7.
[0016] The main crushing box 1, together with the drive motor 6 and the main crushing roller 8, achieves initial crushing; the receiving plate 9, together with the electric push rod 17, can adjust the opening to control the ore to enter the secondary crushing box 2; the secondary crushing box 2 and the secondary crushing roller 10 perform secondary crushing of the ore, and the discharge pipe 11 is used to discharge the crushed material.
[0017] like Figure 2 and Figure 3 As shown, in this embodiment, a receiving box 3 is provided below the secondary crushing box 2. A dredging rod 12 is provided between the discharge pipe 11 and the receiving box 3. A long plate 13 is fixed to the bottom of the dredging rod 12. Linear actuators 14 are provided below both ends of the long plate 13. The telescopic ends of the linear actuators 14 are fixed to the long plate 13 through a mounting bracket. The cross-section of the long plate 13 is triangular. Two leak-proof plates 15 are symmetrically fixed on the long plate 13. The leak-proof plates 15 are located above the edges of both ends of the receiving box 3.
[0018] The linear actuator 14 drives the unblocking rod 12 to move up and down to prevent the discharge pipe 11 from becoming blocked; the triangular long plate 13 works in conjunction with the anti-leak plate 15 to prevent material from overflowing and ensure that the material is collected completely.
[0019] The working principle of this utility model is as follows: The ore enters the main crushing box 1 through the feed hopper 5. The drive motor 6 starts, driving the rotating rod 7 and the main crushing roller 8 to rotate. During the rotation, the main crushing roller 8 collides and squeezes with the ore, crushing the ore into smaller particles.
[0020] The electric push rod 17 controls the sliding of the receiving plate 9, feeding the initially crushed ore into the secondary crushing box 2. The rotating rod 7 extends into the secondary crushing box 2, where the secondary crushing rollers 10 on its outer side continue to crush the ore. After secondary crushing, the particle size of the ore is further reduced, meeting the requirements of subsequent processing.
[0021] The crushed ore is discharged through the discharge pipe 11 and enters the receiving box 3 below. During material conveying, if a blockage occurs, the linear actuator 14 is activated, driving the long plate 13 to move up and down. The unblocking rod 12 at the bottom of the long plate 13 moves accordingly, clearing the channel of the discharge pipe 11. The triangular cross-section of the long plate 13 prevents material from accumulating on it. Simultaneously, the leak-proof plate 15 on the long plate 13 effectively prevents material from escaping the receiving box 3, ensuring smooth collection and conveying of materials.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A mining machinery anti-blocking crushing device, comprising a main crushing box (1), wherein a suspension plate (4) is fixed to the outer wall of the main crushing box (1), a feed hopper (5) is connected to the main crushing box (1), a drive motor (6) is installed on the main crushing box (1), and a rotating rod (7) extending into the main crushing box (1) is connected to the output end of the drive motor (6), and a main crushing roller (8) is fixed to the outer side of the rotating rod (7); characterized in that: The main crushing box (1) has an opening at the bottom. The main crushing box (1) has through grooves at the bottom of its two side walls. Two receiving plates (9) are slidably connected to the grooves. A smaller secondary crushing box (2) is provided below the main crushing box (1). The main crushing box (1) and the secondary crushing box (2) are fixed together by a connecting box (18). The rotating rod (7) extends into the secondary crushing box (2). The ends of the two receiving plates (9) are provided with semi-circular grooves for the rotating rod (7) to pass through. The outer side of the part of the rotating rod (7) in the secondary crushing box (2) is fixed with a secondary crushing cutter (10). The bottom of the rotating rod (7) is fixed with a discharge pipe (11).
2. The anti-blocking crushing device for mining machinery according to claim 1, characterized in that: A receiving box (3) is provided below the secondary crushing box (2). A dredging rod (12) is provided between the discharge pipe (11) and the receiving box (3). A long plate (13) is fixed to the bottom of the dredging rod (12). Linear actuators (14) are provided below both ends of the long plate (13). The telescopic ends of the linear actuators (14) are fixed to the long plate (13) through the mounting bracket.
3. The anti-blocking crushing device for mining machinery according to claim 2, characterized in that: The cross-section of the long plate (13) is triangular.
4. The anti-blocking crushing device for mining machinery according to claim 2, characterized in that: Two leak-proof plates (15) are symmetrically fixed on the long plate (13), and the leak-proof plates (15) are located above the edges of both ends of the receiving box (3).
5. The anti-blocking crushing device for mining machinery according to claim 1, characterized in that: The outer wall of the secondary crushing box (2) is fixed with two mounting seats (16), and electric push rods (17) are installed on the mounting seats (16). The telescopic ends of the two electric push rods (17) are fixed to the ends of the two receiving plates (9) respectively through the connecting frame.