Safety protection type ore crushing device

Abstract

The utility model discloses a kind of safety protection type ore crushing equipment, belong to ore crushing technical field, this safety protection type ore crushing equipment, including the crushing box of crushing ore and two groups of crushing roller rotationally installed in crushing box, feed cover is installed in the upper end surface of crushing box, support frame is fixedly installed outside feed cover, fixed net cover is fixedly installed in the both end direction of crushing roller on support frame, and rotating shaft is rotationally connected on support frame, mobile net cover is fixedly connected on the upper end of rotating shaft, mobile net cover and fixed net cover are vertically distributed;Power mechanism for controlling the reciprocating rotation of mobile net cover to assist gravel recovery is provided on the crushing box;Fixed net cover and mobile net cover can effectively protect the gravel block that equipment splashes outward, and guide gravel block to re-enter crushing box inside through recovery port, improve the security of equipment application.

Description

Technical Field

[0001] This utility model relates to the field of ore crushing technology, specifically a safety-protected ore crushing equipment. Background Technology

[0002] Ore crushing equipment reduces ore particle size through mechanical actions such as squeezing, impact, and shearing, providing qualified raw materials for subsequent mineral processing, smelting, and building material processing. Roller crushers consist of two or more parallel rotating rollers, which crush materials through squeezing or shearing between the rollers. During the crushing process, small pieces of gravel are easily splashed outwards, posing a safety hazard to nearby workers.

[0003] For example, patent CN221360141U discloses a closed-type ore crushing device, including a crushing chamber with a guide bucket installed on it. Two protective plates have springs mounted on their rotating shafts, with one end of the spring abutting against the protective plate and the other end against the inner wall of the feed hopper opening. Sliding plates are slidably mounted on two slide rails. Eccentric wheels are mounted on the output shafts of two motors. Under the influence of the ore's gravity, the two protective plates symmetrically flip inward and open. The continuous rotation of the eccentric wheels drives the pull rod to reciprocate linearly within the hollow tube. When crushed stone is stuck in the guide bucket, the reciprocating motion of the sliding plates shakes the stone away. The dispersion of material helps to clear blockages and provides protection, effectively improving the safety of ore crushing equipment and preventing excessive material feeding that could clog production. While sealed-in feed inlets prevent material from splashing outwards, they hinder the continuous feeding of ore. The operation involves opening the hatch, feeding, closing the hatch, and crushing the ore, which involves many steps and reduces processing efficiency. Open-type crushing equipment is not suitable for protecting and guiding splashed material, posing a significant safety hazard. The splashed material also increases material loss, requiring workers to clean up the accumulated material around the equipment, increasing workload.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing ore crushing equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a safe and protective ore crushing equipment to solve the problems mentioned in the background art. Although the sealed feed inlet crushing equipment can prevent the crushed stone from splashing outward, it is not conducive to the continuous feeding of ore raw materials into the equipment. The operation process includes opening the hatch - feeding - closing the hatch - crushing ore, which involves many operation steps and affects the ore processing efficiency. On the other hand, the open crushing equipment is not convenient for protecting and guiding the splashed crushed stone, which poses a great safety hazard. The splashed crushed stone will increase the loss of raw materials, and the workers will need to clean up the accumulated crushed stone around the equipment later, which will increase the workload.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety-protected ore crushing equipment, comprising a crushing box for crushing ore and two sets of crushing rollers rotatably installed in the crushing box. A feed hood is installed through the upper end face of the crushing box, and a support frame is fixedly installed outside the feed hood. Fixed screens are fixedly installed on the support frame at both ends of the crushing rollers, and a rotating shaft is rotatably connected to the support frame. A movable screen is fixedly connected to the upper end of the rotating shaft, and the movable screen is perpendicular to the fixed screen. A power mechanism is provided on the crushing box to control the reciprocating rotation of the movable screen to assist in the recovery of crushed stone.

[0007] Preferably, the movable mesh cover is fitted and rotatably installed in the support frame, and two sets of movable mesh covers and two sets of fixed mesh covers are distributed around the four sides of the feed hood.

[0008] Preferably, the power mechanism includes a driven rotating rod fixedly connected to the rotating shaft, and a transmission support rod rotatably connected to the driven rotating rod; a longitudinal groove is opened on the outside of the crushing box, and a lifting frame is slidably connected through the groove; an active rotating rod is fixedly connected to the lifting frame, and the active rotating rod is rotatably connected to the driven rotating rod.

[0009] Preferably, a hydraulic lifter is fixedly installed on the outside of the crushing box, and the output end of the hydraulic lifter is fixedly connected to the lifting frame.

[0010] Preferably, the feed hood is inclined on both sides near the two sets of movable screens, and a recovery port for guiding and recovering crushed stone is opened on the inclined surface of the feed hood; a dustproof recovery mechanism for guiding the movement of crushed stone is provided in the crushing box.

[0011] Preferably, the recycling mechanism includes two sets of guide covers symmetrically fixedly installed inside the crushing box, and the two sets of guide covers are symmetrically arranged outside the two sets of crushing rollers; the guide covers and the middle channel of the crushing box are connected to the recycling port.

[0012] Preferably, a sliding frame is longitudinally slidably connected to the crushing box, and the sliding frame is fixedly connected to the lifting frame; a dustproof guide plate is fixedly installed on the lower end face of the sliding frame, and the dustproof guide plate is sealed between the guide cover and the crushing box.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the safety protection type ore crushing equipment has fixed and movable net covers installed outside the feed hood, which can effectively protect the splashed crushed stone and maintain the normal material guiding function of the feed hood. At the same time, the splashed crushed stone can be guided and collected, so that it can re-enter the crushing box and be discharged outward, reducing the waste rate of ore raw material production.

[0014] Furthermore, the crushing box is equipped with a power mechanism that controls the reciprocating rotation of the moving screen to assist in the recovery of crushed stone. The mechanism controls the lifting frame to move up and down. Under the transmission action of the active rotating rod, the transmission support rod, and the driven rotating rod, the rotating shaft and the moving screen can be controlled to reciprocate. The moving screen reciprocates towards the feed hood, which can push the splashed crushed stone towards the feed hood and the recovery port, making it convenient to recover and process the flying crushed stone pieces.

[0015] Furthermore, the crushing chamber is equipped with a dustproof and guide mechanism for the movement of crushed stone. The guide cover divides the crushing chamber into a crushing area and a recycling area. The crushed stone entering through the recycling port is guided into the bottom of the crushing chamber by the guide cover. A dustproof guide plate is installed between the guide cover and the crushing chamber. It moves up and down with the lifting frame, which can guide the crushed stone into the interior of the crushing chamber while preventing dust particles in the crushing chamber from overflowing out through the recycling port, thus reducing the pollution caused by the operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the crushing box of this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the crushing box of this utility model.

[0018] Figure 3 This is a schematic diagram of the fixed and movable mesh cover structures of this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the feed hood of this utility model.

[0020] Figure 5 This is a schematic diagram of the guide cover structure of this utility model.

[0021] Figure 6 This is a partial structural diagram of the lifting frame of this utility model.

[0022] Figure 7 This is a schematic diagram of the sliding frame structure of this utility model.

[0023] Figure 8 This is a schematic diagram of the transmission support rod structure of this utility model.

[0024] In the diagram: 1. Crushing box; 2. Crushing roller; 3. Feed hood; 4. Support frame; 5. Fixed mesh cover; 6. Rotating shaft; 7. Moving mesh cover; 8. Driven rotating rod; 9. Transmission support rod; 10. Slide chute; 11. Lifting frame; 12. Driving rotating rod; 13. Hydraulic lifter; 14. Guide cover; 15. Recovery port; 16. Sliding frame; 17. Dustproof guide plate. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-5 The present invention provides the following technical solution: a safety protection type ore crushing equipment, including a crushing box 1 for crushing ore and two sets of crushing rollers 2 rotatably installed in the crushing box 1. A feed hood 3 is installed through the upper end face of the crushing box 1. A support frame 4 is fixedly installed on the outside of the feed hood 3. Fixed screens 5 are fixedly installed on the support frame 4 at both ends of the crushing rollers 2. A rotating shaft 6 is rotatably connected to the support frame 4. A movable screen 7 is fixedly connected to the upper end of the rotating shaft 6. The movable screen 7 is perpendicular to the fixed screen 5. A power mechanism is provided on the crushing box 1 to control the reciprocating rotation of the movable screen 7 to assist in the recovery of crushed stone.

[0027] Please see Figures 2-6 and Figure 8 The movable screen 7 is fitted and rotatably installed in the support frame 4, and two sets of movable screens 7 and two sets of fixed screens 5 are distributed around the four sides of the feed hood 3. The power mechanism includes a driven rotating rod 8 fixedly connected to the rotating shaft 6, and a transmission support rod 9 rotatably connected to the driven rotating rod 8; a longitudinal groove 10 is opened on the outside of the crushing box 1, and a lifting frame 11 is slidably connected through the groove 10. A driving rotating rod 12 is fixedly connected to the lifting frame 11, and the driving rotating rod 12 is rotatably connected to the driven rotating rod 8. A hydraulic lifter 13 is fixedly installed on the outside of the crushing box 1, and the output end of the hydraulic lifter 13 is fixedly connected to the lifting frame 11.

[0028] The ore blocks are guided into the crushing box 1 through the feed hood 3. The external motor controls the crushing roller 2 to rotate and crush the ore blocks inside. During the crushing process, some of the fragments will fly outward. The flying fragments come into contact with the fixed net cover 5 and the moving net cover 7. They are deflected inward by the elastic buffering effect of the net cover, so that most of the flying fragments can be intercepted and protected, thus improving the safety of the equipment.

[0029] The hydraulic lifter 13 controls the lifting frame 11 to move up and down. The lifting frame 11 drives the active rotating rod 12 to move up and down synchronously. The transmission support rod 9 connected between the active rotating rod 12 and the driven rotating rod 8 rotates at both ends. The rotating transmission support rod 9 pushes the driven rotating rod 8 to rotate back and forth, thereby controlling the moving screen 7 to rotate back and forth towards the feed hood 3. The rotating moving screen 7 can intercept the crushed stone pieces to move further towards the feed hood 3, so that the splashed crushed stone pieces can re-enter the interior of the crushing box 1 through the feed hood 3 and the recovery port 15, reducing the raw material waste rate of ore processing.

[0030] Example 2: Please refer to Figure 2 , Figures 4-7 Based on Embodiment 1, a recycling mechanism is also disclosed, the specific structure of which is as follows: the feed hood 3 is inclined on both sides near the two sets of movable mesh covers 7, and a recycling port 15 for guiding and recycling crushed stone is opened on the inclined surface of the feed hood 3; a dustproof recycling mechanism for guiding the movement of crushed stone is provided in the crushing box 1. The recycling mechanism includes two sets of guide covers 14 symmetrically fixedly installed inside the crushing box 1, and the two sets of guide covers 14 are symmetrically arranged outside the two sets of crushing rollers 2; the guide covers 14 and the middle channel of the crushing box 1 are connected through the recycling port 15.

[0031] Please see Figures 5-8 A sliding frame 16 is longitudinally slidably connected to the crushing box 1, and the sliding frame 16 is fixedly connected to the lifting frame 11; a dustproof guide plate 17 is fixedly installed on the lower end face of the sliding frame 16, and the dustproof guide plate 17 is sealed between the guide cover 14 and the crushing box 1.

[0032] The crushed stone blocks intercepted and protected by the mobile net cover 7 remain outside the feed hood 3. Guided by the inclined surface outside the feed hood 3, the crushed stone blocks can be controlled to enter the recovery port 15. The crushed stone blocks enter between the guide cover 14 and the crushing box 1 and stay on the dustproof guide plate 17. The sliding frame 16 on the dustproof guide plate 17 is fixedly connected to the lifting frame 11 and moves up and down synchronously with the lifting frame 11. The sliding frame 16 drives the dustproof guide plate 17 to move up and down synchronously, so that the crushed stone blocks on the dustproof guide plate 17 can intermittently enter the interior of the crushing box 1. The dustproof guide plate 17 can protect and block the area below the recovery port 15, which can prevent the crushed stone blocks inside the crushing box 1 from splashing out through the recovery port 15 and also prevent dust particles from overflowing out through the recovery port 15, further improving the protective effect of the crushing box 1.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safety-protected ore crushing device, comprising a crushing box (1) for crushing ore and two sets of crushing rollers (2) rotatably installed in the crushing box (1), characterized in that: The upper end face of the crushing box (1) is provided with a feed hood (3), and a support frame (4) is fixedly installed on the outside of the feed hood (3). Fixed mesh covers (5) are fixedly installed on the support frame (4) at both ends of the crushing roller (2), and a rotating shaft (6) is rotatably connected to the support frame (4). A movable mesh cover (7) is fixedly connected to the upper end of the rotating shaft (6). The movable mesh cover (7) is perpendicular to the fixed mesh cover (5). The crushing box (1) is equipped with a power mechanism that controls the reciprocating rotation of the moving mesh cover (7) to assist in the recovery of crushed stone.

2. The safety-protected ore crushing equipment according to claim 1, characterized in that: The movable mesh cover (7) is fitted and rotated in the support frame (4), and two sets of movable mesh covers (7) and two sets of fixed mesh covers (5) are distributed around the four sides of the feed cover (3).

3. The safety-protected ore crushing equipment according to claim 1, characterized in that: The power mechanism includes a driven rotating rod (8) fixedly connected to the rotating shaft (6), and a transmission support rod (9) is rotatably connected to the driven rotating rod (8). The crushing box (1) has a longitudinally opened groove (10) on the outside. A lifting frame (11) is slidably connected through the groove (10). An active rotating rod (12) is fixedly connected to the lifting frame (11). The active rotating rod (12) is rotatably connected to the driven rotating rod (8).

4. The safety-protected ore crushing equipment according to claim 3, characterized in that: A hydraulic lifter (13) is fixedly installed on the outside of the crushing box (1), and the output end of the hydraulic lifter (13) is fixedly connected to the lifting frame (11).

5. The safety-protected ore crushing equipment according to claim 1, characterized in that: The feed hood (3) is inclined on both sides near the two sets of movable net covers (7), and a recycling port (15) for guiding and recycling crushed stone is opened on the inclined surface of the feed hood (3). The crushing box (1) is equipped with a dustproof and guide mechanism for the movement of crushed stone.

6. A safety-protected ore crushing equipment according to claim 5, characterized in that: The recycling mechanism includes two sets of guide covers (14) symmetrically fixedly installed inside the crushing box (1), and the two sets of guide covers (14) are symmetrically arranged outside the two sets of crushing rollers (2); The middle channel between the guide cover (14) and the crushing box (1) is connected to the recovery port (15).

7. A safety-protected ore crushing equipment according to claim 6, characterized in that: The crushing box (1) is longitudinally slidably connected to a sliding frame (16), and the sliding frame (16) is fixedly connected to the lifting frame (11); A dustproof guide plate (17) is fixedly installed on the lower end face of the sliding frame (16), and the dustproof guide plate (17) is sealed between the guide cover (14) and the crushing box (1).

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