Feeding device of impact crusher for mineral separation

Abstract

The utility model relates to the technical field of impact crushers, and discloses a mineral separation impact crusher feeding device which comprises a crusher body, a feeding port is fixedly connected to the crusher body, a through hole is formed in the upper wall face of the feeding port, a fixing frame is fixedly connected to the position, corresponding to the through hole, of the upper wall face of the feeding port, and the fixing frame is fixedly connected to the crusher body. A plurality of connecting blocks are fixedly connected to the interior of the fixing frame at equal intervals, and a buffer mechanism is arranged between every two adjacent connecting blocks; the buffering mechanism comprises a buffering block, a sliding block, a sliding groove and a spring. According to the large ore feeding device, the buffering mechanism is arranged to be matched with the fixing frame and the connecting block, and the effect of reducing the large ore feeding speed is achieved. When large ore enters, the large ore makes contact with the inclined face of the buffer block, the buffer block moves upwards, the sliding block extrudes the spring, the counter-acting force of the spring decelerates the ore through the buffer block, and the situation that the ore excessively impacts an impact plate and a hammer head in the crusher is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of impact crushers, in particular to a feeding device for an impact crusher used for ore dressing. Background Art

[0002] In the mineral processing industry, the impact crusher is a commonly used crushing equipment, and its main function is to crush large pieces of ore into smaller particles so that the subsequent mineral processing process can be carried out more efficiently. As an important part of the impact crusher, the feed device directly affects the working efficiency and service life of the crusher.

[0003] At present, the common impact crusher feeding device has a relatively simple structure, usually just a feeding port directly connected to the crusher body. This simple feeding device has obvious problems when processing large pieces of ore.

[0004] When large pieces of ore enter the feed port, due to the lack of an effective buffer structure, the ore directly hits the impact plate and hammer head inside the crusher at a high speed. This will cause the impact plate and hammer head to be subjected to huge impacts, and in the long run, these parts will be severely worn. For example, frequent high impacts may cause pits on the surface of the impact plate, and the head of the hammer head will also be deformed due to the impact, which greatly shortens the service life of the impact plate and hammer head, and increases the maintenance cost and replacement frequency of the equipment.

[0005] For this purpose, we proposed a feeding device for impact crusher for mineral processing. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a feeding device for an impact crusher for ore dressing, and to solve the above-mentioned problem.

[0007] The technical solution adopted by the utility model to solve the above technical problems is:

[0008] A feeding device for an impact crusher for mineral processing comprises a crusher body, a feeding port is fixedly connected to the crusher body, a through hole is opened on the upper wall of the feeding port, a fixing frame is fixedly connected to the upper wall of the feeding port at a position corresponding to the through hole, a plurality of connecting blocks are fixedly connected to the inside of the fixing frame at equal intervals, and a buffer mechanism is arranged between two adjacent connecting blocks;

[0009] The buffer mechanism includes a buffer block, a slider, a slide groove and a spring. A buffer block is arranged between the two connecting blocks. Both side walls of the buffer block are fixedly connected to two sliders. Two slide grooves are provided at positions corresponding to the two sliders on a side wall of the connecting block adjacent to the buffer block. The slider is movably clamped in the corresponding slide groove. A spring is fixedly connected to a side wall of the slide groove away from the slider. The free end of the spring is connected to the corresponding slider. The lower end of the buffer block extends through the through hole to the inside of the feed port. The bottom surface of the buffer block is arranged as an inclined surface gradually inclined downward from one side of the feed port opening.

[0010] The sliding groove is an arc-shaped groove.

[0011] An auxiliary material distribution mechanism is arranged at the lower part of the interior of the feed port, and the auxiliary material distribution mechanism includes a connecting rod and a connecting column. The lower end of the interior of the feed port is located at the front position and is fixedly connected to the connecting rod. A side wall of the connecting rod close to the crusher body is equidistantly fixedly connected with a plurality of connecting columns. The connecting column is an L-shaped cylindrical structure, and one end of the connecting column away from the connecting rod is fixedly connected to the inner bottom surface of the feed port.

[0012] An elastic rubber belt is arranged inside the feed port at the rear side of the through hole.

[0013] Two connecting holes are formed on the inner wall surface of the feed port at positions corresponding to the two ends of the rubber belt, and the two ends of the rubber belt respectively pass through the corresponding connecting holes and extend to the outside of the feed port, and the parts of the two ends of the rubber belt located on the outside of the feed port are movably connected to the limit blocks, and the limit blocks are movably connected with fixing bolts, and nuts are threadedly connected to the fixing bolts, and two fixing holes are formed on the two ends of the rubber belt at positions corresponding to the two fixing bolts, and the two ends of the rubber belt are respectively connected to the fixing bolts on the corresponding limit blocks through the fixing holes.

[0014] The rubber belt is arranged to be inclined inwardly and downwardly.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, the buffer mechanism is arranged to cooperate with the fixed frame and the connecting block to achieve the effect of reducing the feeding speed of large ore. When the large ore enters, it contacts the inclined surface of the buffer block, causing the buffer block to move upward, the slider squeezes the spring, and the reaction force of the spring decelerates the ore through the buffer block, preventing the ore from causing excessive impact on the impact plate and hammer head inside the crusher, thereby effectively reducing the wear of equipment components and extending the service life of the equipment.

[0017] 2. In the utility model, the auxiliary material distribution mechanism (including connecting rods and connecting columns) is provided to achieve the effect of screening the ore. The connecting rods and connecting columns in the feed port divide the feed space into two layers, upper and lower. The ore with a diameter smaller than the distance between the connecting columns can directly enter the crusher through the lower layer, while the large ore enters from the upper layer after buffering. This screening method can make small ore enter the crusher quickly, and large ore enters after deceleration, which greatly improves the working efficiency of the equipment. In addition, the number and spacing of the connecting columns can be adjusted according to the actual situation, which enhances the adaptability of the equipment to different ore types.

[0018] 3. In the utility model, by setting a rubber belt that is tilted inward and downward and fixed to the feed port by a limit block, a fixing bolt and a nut, the effect of secondary buffering and precise guiding of the ore is achieved. The elasticity of the rubber belt can buffer the ore again after it passes through the buffer mechanism, reducing the impact of the ore on the inside of the crusher. At the same time, its tilted setting can guide the ore, especially large pieces of ore, to fall accurately on the hammer head inside the crusher for crushing. Moreover, this fixing method is convenient for timely replacement of the rubber belt when it is damaged, ensuring the normal operation of the equipment and reducing maintenance costs.

[0019] 4. In the utility model, the slide is arc-shaped and the buffer block is provided with an inclined surface, so as to achieve the effect of adaptive buffering of ores of different sizes. For ores of different sizes, larger ores will squeeze the buffer block to a higher position, the deformation degree of the spring will be greater, and the reaction force generated will reduce the speed of the ore more significantly. This adaptive characteristic enables the equipment to adapt to the feeding conditions of ores of various sizes, ensuring the stable operation of the equipment under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the feed inlet of the utility model;

[0022] Figure 3 This is a half-section schematic diagram of the feed inlet of the utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly of the connection block and the buffer block of the utility model;

[0024] Figure 5 This is a partial exploded view of the rubber belt and the limit block of the utility model.

[0025] In the figure: 1. Crusher body; 2. Feed inlet; 3. Connecting rod; 4. Connecting column; 5. Through hole; 6. Fixed frame; 7. Connecting block; 8. Buffer block; 9. Slider; 10. Slide groove; 11. Spring; 12. Connecting hole; 13. Rubber belt; 14. Limit block; 15. Fixing bolt; 16. Nut; 17. Fixing hole. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0027] Figure 1~Figure 5 It is the best embodiment of the utility model, and the following Figure 1 ~Attached Figure 5 The utility model is further described.

[0028] A feeding device for an impact crusher for mineral processing, comprising a crusher body 1, a feed port 2 is fixedly connected to the crusher body 1, a through hole 5 is opened on the upper wall of the feed port 2, a fixing frame 6 is fixedly connected to the upper wall of the feed port 2 at a position corresponding to the through hole 5, a plurality of connecting blocks 7 are fixedly connected to the inside of the fixing frame 6 at equal intervals, and a buffer mechanism is provided between two adjacent connecting blocks 7;

[0029] The buffer mechanism includes a buffer block 8, a slider 9, a slide groove 10 and a spring 11. A buffer block 8 is arranged between the two connecting blocks 7. Both side walls of the buffer block 8 are fixedly connected to two sliders 9. Two slide grooves 10 are provided on a side wall of the connecting block 7 adjacent to the buffer block 8 at positions corresponding to the two sliders 9. The slider 9 is movably engaged in the corresponding slide groove 10. A spring 11 is fixedly connected to a side wall of the slide groove 10 away from the slider 9. The free end of the spring 11 is connected to the corresponding slider 9. The lower end of the buffer block 8 extends through the interior of the through hole 5 to the interior of the feed port 2. The bottom surface of the buffer block 8 is arranged as an inclined surface gradually inclined downward from the opening side of the feed port 2.

[0030] During the operation of the equipment, the ore enters the crusher body 1 through the feed port 2 to be impact crushed. When large pieces of ore enter the crusher body 1 from the feed port 2, the buffer mechanism arranged between the two adjacent connecting blocks 7 will play a role. This mechanism can effectively reduce the speed at which large pieces of ore enter the crusher body 1, and play a deceleration and buffering effect. In this way, it can be avoided that the large pieces of ore are fed too fast, causing excessive impact on the impact plate and hammer head inside the crusher body 1 when entering the crusher body 1, thereby slowing down the wear rate of components and extending the service life of the equipment; by means of four sliders 9 arranged on both sides of the buffer block 8, the buffer block 8 can be movably clamped between two adjacent connecting blocks 7, and affected by the limiting influence of the slider 9, the buffer block 8 will not deviate when it moves, and by means of the spring 11 installed in the slide 10, a downward thrust can be applied to the buffer block 8 by the slider 9 when the buffer block 8 moves.

[0031] The slide groove 10 is an arc-shaped groove.

[0032] Since the chute 10 is an arc-shaped groove, and a side wall surface close to the opening on the feed port 2 is provided with an inclined surface inclined inward and downward, when large pieces of ore enter the crusher body 1 from the inside of the feed port 2, the large pieces of ore will first contact and squeeze with the inclined surface of the buffer block 8 on the upper side of the crusher body 1. At this time, the buffer block 8 will move upward between the two adjacent connecting blocks 7 due to the squeezing of the large pieces of ore, during which the slider 9 will be driven to squeeze the spring 11 inside the corresponding chute 10, causing it to deform, and the reaction force generated by the deformation of the spring 11 can be applied to the large pieces of ore through the buffer block 8, hindering the movement of the large pieces of ore, thereby achieving the effect of reducing the movement speed of the large pieces of ore, until the lower end of the buffer block 8 is squeezed to be level with the upper wall surface of the large pieces of ore, and the large pieces of ore can cross the buffer block 8 and continue to move toward the inside of the crusher body 1.

[0033] An auxiliary material distribution mechanism is arranged at the lower part of the interior of the feed port 2, and the auxiliary material distribution mechanism includes a connecting rod 3 and a connecting column 4. The lower end of the interior of the feed port 2 is located at the front position and is fixedly connected with the connecting rod 3. The connecting rod 3 is fixedly connected with a plurality of connecting columns 4 at equal distances on a side wall surface close to the crusher body 1. The connecting column 4 is an L-shaped cylindrical structure, and one end of the connecting column 4 away from the connecting rod 3 is fixedly connected to the inner bottom surface of the feed port 2.

[0034] An elastic rubber belt 13 is arranged inside the feed port 2 at the rear side of the through hole 5. The rubber belt 13 is arranged to be tilted inward and downward. The rubber belt 13 can perform secondary buffering on the large pieces of ore and play a guiding role.

[0035] Two connecting holes 12 are provided on the inner wall surface of the feed port 2 at positions corresponding to the two ends of the rubber belt 13. The two ends of the rubber belt 13 respectively penetrate the corresponding connecting holes 12 and extend to the outside of the feed port 2. The two ends of the rubber belt 13 located on the outside of the feed port 2 are movably sleeved on limit blocks 14. A fixing bolt 15 is movably connected to the limit block 14. A nut 16 is threadedly connected to the fixing bolt 15. Two fixing holes 17 are provided at the two ends of the rubber belt 13 at positions corresponding to the two fixing bolts 15. The two ends of the rubber belt 13 are respectively sleeved with the fixing bolts 15 on the corresponding limit blocks 14 through the fixing holes 17.

[0036] When in use, the auxiliary dividing mechanism will divide the interior of the feed port 2 into two spaces, an upper space and an lower space. Among the ore entering the feed port 2, the ore with a diameter smaller than the distance between two adjacent connecting columns 4 will fall into the lower layer inside the feed port 2 through the distance between two adjacent connecting columns 4, and enter the interior of the crusher body 1 through the lower layer inside the feed port 2, while the large ore with a diameter exceeding the distance between two adjacent connecting columns 4 will continue to enter the interior of the crusher body 1 in the upper layer inside the feed port 2 after being slowed down by the buffer mechanism. In this way, the ore can be quickly screened, allowing small pieces of ore to enter the interior of the crusher body 1 for crushing faster, and large pieces of ore enter after being decelerated, thereby improving the working efficiency of the equipment.

[0037] The working principle of the utility model is:

[0038] During the operation of the equipment, the ore enters the crusher body 1 through the feed port 2 to be impact crushed. When large pieces of ore enter the crusher body 1 from the feed port 2, the buffer mechanism arranged between two adjacent connecting blocks 7 will play a role. This mechanism can effectively reduce the speed at which large pieces of ore enter the crusher body 1, thereby achieving a deceleration and buffering effect. In addition, the rubber belt 13 can perform secondary buffering on the large pieces of ore and play a guiding role.

[0039] The auxiliary material separation mechanism arranged at the lower part of the feed port 2 can quickly screen the large and small pieces in the ore, so as to improve the working efficiency. When in use, the auxiliary material separation mechanism will divide the interior of the feed port 2 into two spaces, the upper and lower spaces. Among the ore entering the feed port 2, the ore with a diameter smaller than the distance between two adjacent connecting columns 4 will fall into the lower layer of the feed port 2 through the distance between two adjacent connecting columns 4, and enter the crusher body 1 through the lower layer of the feed port 2, while the large ore with a diameter larger than the distance between two adjacent connecting columns 4 will continue to enter the crusher body 1 in the upper layer of the feed port 2 after being decelerated by the buffer mechanism, so that the ore can be quickly screened.

[0040] The rubber belt 13 is tilted and elastic, so that when in use, it can not only buffer the ore entering the crusher body 1, but also guide it so that large pieces of ore can accurately fall onto the hammer head inside the crusher body 1 and be broken. At the same time, since the two ends of the rubber belt 13 are threadedly connected by fixing bolts 15 and nuts 16 to fix the limit block 14, the rubber belt 13 can be replaced immediately when it is damaged.

Claims

1. A feeding device for an impact crusher for mineral processing, comprising a crusher body (1), to which a feeding port (2) is fixedly connected, characterized in that: A through hole (5) is provided on the upper wall surface of the feed port (2); a fixing frame (6) is fixedly connected to the upper wall surface of the feed port (2) at a position corresponding to the through hole (5); a plurality of connecting blocks (7) are fixedly connected to the interior of the fixing frame (6) at equal intervals; a buffer mechanism is provided between two adjacent connecting blocks (7); The buffer mechanism comprises a buffer block (8), a slider (9), a slide groove (10) and a spring (11). A buffer block (8) is arranged between the two connecting blocks (7). Both side walls of the buffer block (8) are fixedly connected to the two sliders (9). Two slide grooves (10) are provided at positions corresponding to the two sliders (9) on a side wall of the connecting block (7) adjacent to the buffer block (8). The slider (9) is movably engaged in the interior of the corresponding slide groove (10). A spring (11) is fixedly connected to the side wall of the slide groove (10) away from the slider (9). The free end of the spring (11) is connected to the corresponding slider (9). The lower end of the buffer block (8) passes through the interior of the through hole (5) and extends to the interior of the feed port (2). The bottom surface of the buffer block (8) is arranged as an inclined surface which gradually inclines downward from the opening side of the feed port (2).

2. The feeding device of an impact crusher for ore dressing according to claim 1, characterized in that: The sliding groove (10) is an arc-shaped groove.

3. The feeding device of an impact crusher for ore dressing according to claim 1, characterized in that: An auxiliary material distribution mechanism is arranged at the lower part of the feed port (2), and the auxiliary material distribution mechanism comprises a connecting rod (3) and a connecting column (4). The lower end of the feed port (2) is fixedly connected to the connecting rod (3) at the front position. A wall surface of the connecting rod (3) close to the crusher body (1) is fixedly connected to a plurality of connecting columns (4) at equal intervals. The connecting column (4) is an L-shaped cylindrical structure. One end of the connecting column (4) away from the connecting rod (3) is fixedly connected to the inner bottom surface of the feed port (2).

4. The feeding device of an impact crusher for ore dressing according to claim 1, characterized in that: An elastic rubber belt (13) is arranged inside the feed port (2) at the rear side of the through hole (5).

5. The feeding device of an impact crusher for ore dressing according to claim 4, characterized in that: Two connecting holes (12) are formed on the inner wall surface of the feed port (2) at positions corresponding to the two ends of the rubber belt (13); the two ends of the rubber belt (13) respectively penetrate the interior of the corresponding connecting holes (12) and extend to the outside of the feed port (2); the two ends of the rubber belt (13) located outside the feed port (2) are movably sleeved on the limit blocks (14); the limit blocks (14) are movably connected with fixing bolts (15); the fixing bolts (15) are threadedly connected with nuts (16); two fixing holes (17) are formed on the two ends of the rubber belt (13) at positions corresponding to the two fixing bolts (15); the two ends of the rubber belt (13) are sleeved together with the fixing bolts (15) on the corresponding limit blocks (14) through the fixing holes (17).

6. The feeding device of an impact crusher for ore dressing according to claim 5, characterized in that: The rubber belt (13) is arranged to be inclined inwardly and downwardly.

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