Gravel sorting device for mining

Abstract

The invention discloses a broken stone sorting device for mine mining, and relates to the technical field of mine mining, the broken stone sorting device comprises a vibration screening machine main body, a placing cavity, a discharging groove, a fixing shaft and a fixing roller, the placing cavity is formed in the vibration screening machine main body, and the discharging groove is formed in one side of the vibration screening machine main body; the distances between the fixing shafts are changed through deformation of the connecting rod assemblies, broken stones can be sorted by adjusting the gaps between the fixing rollers, so that the broken stones are convenient to sort, the gaps between the fixing rollers can be synchronously changed, the positions of the fixing shafts do not need to be independently changed, and the working efficiency is improved. According to the gravel sorting device, it can be guaranteed that the positions of the fixing shafts and the first partition plates are aligned, the situation that the positions of the first partition plates are independently adjusted can be avoided, a second connecting strip and a third connecting sleeve can knock an iron sheet plate, and therefore sorted gravel can be rapidly discharged from the iron sheet plate, discharging of the gravel from a containing cavity is accelerated, and the gravel sorting efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of mining technology, specifically to a crushed stone sorting device for mining. Background Technology

[0002] Crushing is a crucial step in mining, involving the rational utilization of mineral resources and environmental protection. Crushing involves processes such as mining and crushing, screening, grading, shaping, and tailings disposal. It is a systematic process that requires comprehensive consideration of resource utilization and environmental protection requirements to ensure the sustainable development of mining activities. Crushed stone needs to be screened to separate stones of different sizes. Screening equipment such as vibrating screens and cylindrical screens can be used to obtain crushed stone products of different specifications as needed. In existing technologies, after the crushed stone from mining is initially crushed, it needs to be further refined and classified by screening and sorting devices. However, when using a vibrating screen to sort the stone, the distance between each fixed shaft and fixed roller needs to be adjusted. The crushed stone needs to be sorted according to a certain size. The crushed stone in the gap of the fixed roller cannot be sorted out well. The distance between each fixed shaft not only needs to be adjusted one by one, but the position of the fixed shaft is also prone to change during the operation of the equipment after adjustment, which causes the size of the gap of the fixed roller to change, affecting the efficiency of sorting crushed stone in the gap of the fixed shaft. Summary of the Invention

[0003] The purpose of this invention is to provide a crushed stone sorting device for mining, so as to solve the problems mentioned in the background art.

[0004] The objective of this invention can be achieved through the following technical solutions: A crushed stone sorting device for mining includes a vibrating screen body, a placement cavity, a discharge chute, a fixed shaft, and fixed rollers. The placement cavity is located inside the vibrating screen body, and the discharge chute is located on one side of the vibrating screen body. The fixed shaft is horizontally positioned at the upper end of the vibrating screen body, and the fixed rollers are sleeved on the outside of the fixed shaft. A drive motor is installed on one side of the vibrating screen body at the end of each fixed shaft, and the fixed rollers rotate synchronously with the fixed shaft. Spacing adjustment structures are provided at both ends of the fixed shaft and on both sides of the vibrating screen body. Each spacing adjustment structure includes a fixed end cover, which is sleeved on the end of each fixed shaft, and a rotating bearing is located in the center of the fixed end cover. Connecting sections are opened inside the four corners of each fixed end cover. Each of the connecting holes has a telescopic rod inside, which is slidably connected to the inside of the connecting hole. A connecting sleeve is welded to the end of each telescopic rod. A connecting rod assembly is provided between two adjacent fixed end caps, and a connecting rod is provided at each of the four corners of the connecting rod assembly. Each of the four connecting rods is welded to a connecting sleeve, and the connecting rod penetrates the interior of two connecting sleeves. Each connecting sleeve has a through hole at its end, and a connecting rod 2 is provided inside the through hole. The connecting rod 2 is slidably connected to the interior of all the connecting rods 2. The distance between the fixed shafts increases sequentially, and the distance between the connecting rod assemblies also increases sequentially. The connecting rod assembly is located between each fixed shaft, and all connecting rod assemblies extend and retract simultaneously. The connecting rod assembly is used to adjust the distance between each fixed shaft.

[0005] As a preferred embodiment of the present invention, the linkage assembly consists of several sets of intersecting linkages, with the number of linkage sets increasing sequentially. A connecting block is provided between the intersecting linkages, and the two ends of the linkages are rotatably connected to the connecting blocks, with the end of the first connecting rod fixed to the connecting block.

[0006] As a preferred embodiment of the present invention, the connecting rod 1 at the upper end of the fixed end cover and the connecting rod 1 at the lower end of the fixed end cover are close to or far apart from each other, the maximum extension distance of the connecting sleeve 1 is less than the depth of the connecting hole 1, and the length of the connecting rod 2 is greater than the distance between the two furthest fixed shafts.

[0007] As a preferred embodiment of the present invention, a fixing hole is provided on the side wall of the vibrating screen body at the end of the fixed shaft located at the edge, and a fixing groove is provided on the side wall of the vibrating screen body at the ends of the other fixed shafts, with the length of the fixing grooves increasing progressively. A fixing block is provided on the side wall of the vibrating screen body at the longest fixing groove, and a threaded rod is threadedly connected to the inside of the fixing block. A nut is threadedly connected to the end of the threaded rod. A connector is welded to the side wall of the fixed end cap at the edge, and a reserved opening is provided on the side wall of the connector. The end of the threaded rod passes through the interior of the reserved opening, and the end of the threaded rod is rotatably connected to the reserved opening.

[0008] In a preferred embodiment of the present invention, the direction of the threaded rod is parallel to the direction of the connecting rod two, and the length of the threaded rod is greater than the length of the longest fixing groove. The end of the threaded rod is used to limit the position of the fixing end cap.

[0009] As a preferred technical solution of the present invention, an interval structure is provided inside the main body of the vibrating screening machine and below the fixed roller. The interval structure includes several interval plates one and two. The interval plates one are located below each fixed shaft. The interval plates one and two are manufactured integrally. The interval plates two are located above the discharge trough. Connecting strip one and connecting sleeve two are welded to both ends of the interval plates one and at both ends of the fixed shaft. The interior of the connecting sleeve two is rotatably connected to the fixed shaft. The interval plates one move synchronously with the fixed shaft. The interval plates one are used to separate crushed stones of different sizes.

[0010] As a preferred embodiment of the present invention, the connecting sleeve two has a connecting hole two inside, the connecting hole two of the connecting sleeve two is fitted with the fixed shaft, and the diameter of the connecting hole two is adapted to the diameter of the fixed shaft.

[0011] As a preferred embodiment of the present invention, a vibration structure is provided at the bottom of the main body of the vibrating screening machine. The vibration structure includes a sheet metal plate, which is located at the bottom of the main body of the vibrating screening machine and is arranged in a curved manner. There is a hollow layer between the sheet metal plate and the placement cavity. The two edges of the sheet metal plate are fixed to the side wall of the main body of the vibrating screening machine by fastening bolts. A row of telescopic springs is provided inside the bottom of the main body of the vibrating screening machine. A matching sleeve is welded to one side wall of the main body of the vibrating screening machine, and a connecting strip two is slidably connected inside the matching sleeve. The bottom end of the connecting strip two is in contact with the sheet metal plate. A connecting sleeve three is provided at one end of the fixed shaft with a cylindrical surface, corresponding to the connecting strip two. The end of the connecting sleeve three is in intermittent contact with the connecting strip two.

[0012] As a preferred technical solution of the present invention, the connecting sleeve three is connected to the fixed shaft by a key, and the connecting sleeve three rotates synchronously with the fixed shaft. The bottom end of the partition plate one is provided with a mating groove, and the mating groove is adapted to the surface of the sheet metal plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: It is equipped with a spacing adjustment structure, which uses the deformation of the connecting rod assembly to change the spacing of each fixed shaft, thereby adjusting the gap of the fixed rollers. Crushed stones can be sorted by adjusting the gap of the fixed rollers, making the sorting of crushed stones more convenient. By adjusting the deformation of the linkage assembly in the spacing adjustment structure, the width of the linkage assembly can be changed, thereby synchronously changing the gap of the fixed rollers without having to change the position of each fixed shaft individually. By determining the position of the threaded rod in the spacing adjustment structure, the end of the threaded rod can restrict the fixed end cap at the edge, preventing the position of the fixed end cap from changing due to equipment operation, and ensuring that the position of each fixed shaft is restricted and does not change. With the interval structure set, when the spacing of each fixed axis changes, the position of the first interval plate can be adjusted synchronously. This not only ensures that the fixed axis and the first interval plate are aligned, but also avoids adjusting the position of each first interval plate individually, which is quite convenient. Equipped with a vibration structure, when the drive motor rotates the fixed shaft, connecting strip two and connecting sleeve three can strike the sheet metal plate, so that the sorted gravel can be quickly discharged from the sheet metal plate, accelerating the discharge of gravel from the placement chamber and improving the efficiency of gravel sorting. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of a crushed stone sorting device used in mining. Figure 2 This is a schematic diagram of the placement chamber and fixing groove of a crushed stone sorting device used in mining. Figure 3 This is a schematic diagram of the spacing adjustment structure of a crushed stone sorting device used in mining. Figure 4 This is a schematic diagram of a linkage assembly for a crushed stone sorting device used in mining. Figure 5 A schematic diagram of the telescopic rod and connecting hole of a crushed stone sorting device used in mining. Figure 6 A schematic diagram of a threaded rod in a crushed stone sorting device used in mining. Figure 7 This is a schematic diagram of the interval structure of a crushed stone sorting device used in mining. Figure 8 This is a schematic diagram of a connecting sleeve 2 and a connecting hole 2 for a crushed stone sorting device used in mining. Figure 9 This is a schematic diagram of the vibration structure of a crushed stone sorting device used in mining. Figure 10 This is a schematic diagram of connecting strip two and connecting sleeve three of a crushed stone sorting device used in mining.

[0016] In the diagram: 1. Vibrating screen body; 2. Placement chamber; 3. Discharge chute; 4. Fixed shaft; 5. Fixed roller; 6. Spacing adjustment structure; 7. Spacing structure; 8. Vibration structure; 9. Drive motor; 10. Fixed groove; 61. Fixed end cover; 62. Rotary bearing; 63. Connecting sleeve one; 64. Connecting rod one; 65. Connecting rod two; 66. Connecting rod assembly; 67. Telescopic rod; 68. Connecting hole one; 69. Fixed block; 610. Threaded rod; 611. Connector; 612. Nut; 613. Reserved opening; 71. Spacing plate one; 72. Spacing plate two; 73. Connecting strip one; 74. Connecting sleeve two; 75. Connecting hole two; 81. Sheet metal plate; 82. Fastening bolt; 83. Connecting strip two; 84. Connecting sleeve three; 85. Mating groove; 86. Mating sleeve; 87. Telescopic spring. Detailed Implementation

[0017] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0018] Please see Figure 1 - Figure 3As shown, a crushed stone sorting device for mining includes a vibrating screen body 1, a placement chamber 2, a discharge chute 3, a fixed shaft 4, and a fixed roller 5. The placement chamber 2 is located inside the vibrating screen body 1, and the discharge chute 3 is located on one side of the vibrating screen body 1. Crushed stone is poured into the placement chamber 2 from one side of the vibrating screen body 1, and then falls from the placement chamber 2 into the discharge chute 3, from which it is discharged. The fixed shaft 4 is horizontally positioned at the upper end of the vibrating screen body 1, and the fixed roller 5 is sleeved on the outside of the fixed shaft 4. A drive motor 9 is provided on one side of the vibrating screen body 1 at the end of each fixed shaft 4. The fixed roller 5 rotates synchronously with the fixed shaft 4. The drive motor 9 can drive the fixed shaft 4, so that the fixed shaft 4 and the fixed roller 5 rotate synchronously, causing the crushed stone above the fixed roller 5 to move, thereby causing crushed stone of different sizes to fall from the gaps of each fixed roller 5.At both ends of the fixed shaft 4 and on both sides of the vibrating screening machine body 1, a spacing adjustment structure 6 is provided. The spacing adjustment structure 6 includes a fixed end cover 61, which is sleeved on the end of each fixed shaft 4. A rotating bearing 62 is provided in the center of the fixed end cover 61. When the drive motor 9 drives each fixed shaft 4 to rotate, the inner ring of the fixed shaft 4 and the rotating bearing 62 rotate synchronously, and the outer ring of the fixed end cover 61 and the rotating bearing 62 rotate synchronously. Therefore, the rotation of the fixed shaft 4 will not affect the position of the fixed end cover 61. The four corners of each fixed end cover 61 are equipped with... A connecting hole 68 is provided, and a telescopic rod 67 is provided inside each connecting hole 68. The telescopic rod 67 is slidably connected to the inside of the connecting hole 68, and a connecting sleeve 63 is welded to the end of each telescopic rod 67. The two connecting sleeves 63 at the top of the fixed end cover 61 rise and fall synchronously, and the two connecting sleeves 63 at the bottom of the fixed end cover 61 also rise and fall synchronously. A connecting rod assembly 66 is provided between two adjacent fixed end covers 61, and a connecting rod 64 is provided at each of the four corners of the connecting rod assembly 66. The four connecting rods 64 of the connecting rod assembly 66 are respectively connected to the connecting sleeves 63. The connecting rods 64 are welded together, and the connecting rod 64 passes through the interior of the two connecting sleeves 63. The connecting rod assembly 66 is compressed, causing it to deform and thus changing the position of the four corners. At this time, the four connecting rods 64 of the connecting rod assembly 66 rise and fall synchronously, thereby changing the position of the connecting sleeves 63. Each connecting sleeve 63 has a through hole at its end, and a connecting rod 65 is installed inside the through hole. The connecting rod 65 is slidably connected to all the connecting rods 63 inside. The deformation of the connecting rod assembly 66 causes the connecting rod to deform. The first sleeve 63 moves along the second connecting rod 65, and the distance between the fixed shafts 4 increases sequentially. The distance between the connecting rod assemblies 66 also increases sequentially, and the connecting rod assemblies 66 are located between each fixed shaft 4. The connecting rod assemblies 66 extend and retract simultaneously, adjusting the distance between the fixed shafts 4. Because the distance between the fixed shafts 4 increases, the fixed rollers 5 can screen different sizes of gravel. Changing the shape of the connecting rod assemblies 66 changes the gap between the fixed rollers 5, thus allowing the distance between the fixed rollers 5 to be adjusted according to the needs of screening gravel.

[0019] Please see Figure 3 - Figure 5 As shown, the connecting rod assembly 66 consists of several sets of intersecting connecting rods, with the number of connecting rod sets increasing sequentially. Connecting blocks are provided between the intersecting connecting rods, and the two ends of the connecting rods are rotatably connected to the connecting blocks. When the connecting rods of the connecting rod assembly 66 deform, the two ends of the connecting rods can be connected to the connecting blocks, which can change the width of the connecting rod assembly 66. The end of the connecting rod 64 is fixed to the connecting block. The change in the width of the connecting rod assembly 66 changes the spacing of the fixed rollers 5. The spacing of the fixed rollers 5 can be adjusted, so that the crushed stone falls from the gaps between the fixed rollers 5 and is discharged from the inside of the discharge chute 3.

[0020] Please see Figure 4 and Figure 5 As shown, the connecting rod 64 at the upper end of the fixed end cap 61 and the connecting rod 64 at the lower end of the fixed end cap 61 move closer or further apart, causing the connecting rod assembly 66 to deform. This causes the distance between the upper and lower connecting rods 64 to change, allowing the connecting sleeve 63 to rise or fall. The maximum extension distance of the connecting sleeve 63 is less than the depth of the connecting hole 68. The telescopic rod 67 always remains inside the connecting hole 68 during its rise and fall, preventing the telescopic rod 67 from detaching from the connecting hole 68. Furthermore, the length of the connecting rod 65 is greater than the distance between the two furthest fixed shafts 4. When the connecting rod assembly 66 deforms, the position of the fixed end cap 61 changes, ensuring that the fixed end cap 61 can move along the inside of the through hole.

[0021] Please see Figure 4 and Figure 6 As shown, a fixing hole is provided at the end of the fixed shaft 4 located on the side wall of the vibrating screen body 1 at the edge. A fixing groove 10 is provided at the ends of the other fixed shafts 4 on the side wall of the vibrating screen body 1, and the length of the fixing groove 10 increases. The position of the fixed shaft 4 located at the fixing hole does not change, but the fixed roller 5 located in the fixing groove 10 can change. A fixing block 69 is provided on the side wall of the vibrating screen body 1 at the longest fixing groove 10. The fixing block 69 is welded to the side wall of the vibrating screen body 1. A threaded rod 610 is threadedly connected to the inside of the fixing block 69. The threaded rod 610 can be screwed into the inside of the fixing block 69, thereby changing the length of the threaded rod 610 extending out. The threaded rod 610 has a nut 612 threadedly connected to its end. A connector 611 is welded to the side wall of the fixed end cap 61 on the edge. The side wall of the connector 611 has a reserved opening 613. The end of the threaded rod 610 passes through the reserved opening 613 and is rotatably connected to the reserved opening 613. The end of the threaded rod 610 is inserted into the reserved opening 613 of the connector 611. The nut 612 is screwed into the end of the threaded rod 610. The rotation of the threaded rod 610 can restrict the end of the threaded rod 610 inside the connector 611. Since the connector 611 is welded to the fixed end cap 61 on the edge, the position of the fixed end cap 61 can be adjusted.

[0022] Please see Figure 6 As shown, the direction of the threaded rod 610 is parallel to the direction of the connecting rod 65, and the length of the threaded rod 610 is greater than the length of the longest fixing groove 10. The end of the threaded rod 610 is used to limit the position of the fixing end cover 61. When the threaded rod 610 moves along its axial direction, the connecting head 611 drives the fixing end cover 61 to move, thereby changing the position of the fixing end cover 61, and thus changing the position of the fixing roller 5.

[0023] It should be noted that the crushed stone is poured into the placement chamber 2 from one end of the vibrating screen body 1. The crushed stone is sorted by the gaps between the fixed rollers 5. Smaller crushed stone enters from the gap of one side of the fixed roller 5, and larger crushed stone enters from the gaps of the other fixed rollers 5. Thus, crushed stone of different sizes is screened and discharged from the discharge chute 3. When it is necessary to adjust the gaps between the fixed rollers 5, the spacing of the fixed rollers 5 can be adjusted by the spacing adjustment structure 6. Specifically, the threaded rod 610 is rotated so that the threaded rod 610 moves along its axis, and the nut 612 at the end of the threaded rod 610 is located inside the connector 611. The movement of the fixed end cap 61 at the end of the threaded rod 610 can change the position of the fixed end cap 61. When the position of the fixed end cap 61 changes, it pulls each connecting rod assembly 66 to change. The connecting rod of the connecting rod assembly 66 deforms, making the width of the connecting rod assembly 66 wider or narrower, thereby adjusting the gap of each fixed roller 5 at the same time, avoiding individual adjustment of each fixed roller 5. During this period, when the connecting rod assembly 66 changes, the connecting sleeve 63 and the telescopic rod 67 can be extended or retracted, thereby changing the gap. At the same time, the connecting sleeve 63 also moves along the connecting rod 65, thereby ensuring that the fixed shaft 4 moves along the interior of each fixed groove 10.

[0024] Please see Figure 2 and Figure 7 As shown, an interval structure 7 is provided inside the main body 1 of the vibrating screening machine and below the fixed roller 5. The interval structure 7 includes several interval plates 1 71 and interval plates 2 72. The interval plates 1 71 are located below each fixed shaft 4. The interval plates 1 71 and 2 72 are manufactured as a single piece, so that the fixed shaft 4 can adjust the position of the interval plates 1 71 and 2 72 under the control of the spacing adjustment structure 6. The interval plates 2 72 are located above the discharge trough 3. The interval plates 2 72 can discharge the crushed stone that falls into the bottom of the placement chamber 2 from the discharge trough 3, avoiding the mixing of the crushed stone at the discharge trough 3. The two ends of the interval plates 1 71 and the two ends of the fixed shaft 4 are welded with connecting strips 1 73 and connecting sleeves 2 74. The connecting strips 1 73 weld the connecting strips 1 73 and the interval plates 2 72 together, and the interior of the connecting sleeves 2 74 is rotatably connected to the fixed shaft 4. The interval plates 1 71 move synchronously with the fixed shaft 4. The interval plates 1 71 are used to separate crushed stone of different sizes. When the position of the fixed shaft 4 changes, the interval plates 1 71 can be moved.

[0025] Please see Figure 7 and Figure 8As shown, the connecting sleeve 2 74 has a connecting hole 2 75 inside. The connecting hole 2 75 of the connecting sleeve 2 74 fits into the fixed shaft 4, and the diameter of the connecting hole 2 75 is adapted to the diameter of the fixed shaft 4. When the connecting hole 2 75 of the connecting sleeve 2 74 is fitted onto the end of the fixed shaft 4, the fixed shaft 4 moves the spacer 1 71 along with the fixed shaft 4, so that the change in position of the fixed shaft 4 will also cause the spacer 1 71 to move synchronously, without the need to adjust the position of the spacer 1 71 separately.

[0026] It should be noted that by adjusting the gap of the fixed roller 5 through the gap adjustment structure 6, the position of the fixed shaft 4 inside the fixed groove 10 changes. In order to ensure that the position of the partition plate 71 corresponds to the position of the fixed shaft 4, the fixed shaft 4 moves along the inside of the fixed groove 10. The connecting strip 73 drives the partition plate 71 to move synchronously. The connecting hole 75 of the connecting sleeve 74 rotates to ensure that the rotation of the fixed shaft 4 does not affect the position of the partition plate 71. The falling gravel is separated by the partition plate 71, and the gravel falls along the gap of the partition plate 71 into the partition plate 72 inside the discharge chute 3 and is discharged from the discharge chute 3. When adjusting the position of the fixed shaft 4, it is not necessary to adjust the position of the partition plate separately, which is more convenient.

[0027] Please see Figure 2 and Figure 9 As shown, a vibration structure 8 is provided at the bottom of the inner interior of the vibrating screen body 1. The vibration structure 8 includes a sheet metal plate 81, which is located at the bottom of the inner interior of the vibrating screen body 1 and is arranged in a bent manner. There is a hollow layer between the sheet metal plate 81 and the placement cavity 2, so that the sheet metal plate 81 can be bent and deformed. The two edges of the sheet metal plate 81 are fixed to the side wall of the vibrating screen body 1 by fastening bolts 82, which can fix the sheet metal plate 81 to the inner wall of the placement cavity 2. A row of telescopic springs 87 is provided inside the bottom of the vibrating screen body 1. A mating sleeve 86 is welded to one side wall of the vibrating screen body 1, and the inner part of the mating sleeve 86... A connecting strip 2 83 is slidably connected to the part, and the bottom end of the connecting strip 2 83 contacts the sheet metal plate 81. One end of the fixed shaft 4 is cylindrical and a connecting sleeve 3 84 is provided at the position corresponding to the connecting strip 2 83. The end of the connecting sleeve 3 84 is in intermittent contact with the connecting strip 2 83. When the fixed shaft 4 rotates, it can drive the connecting sleeve 3 84 to rotate. The rotation of the connecting sleeve 3 84 will cause it to intermittently contact the connecting strip 2 83, so that the connecting strip 2 83 moves up and down along the inside of the mating sleeve 86. The end of the connecting strip 2 83 can strike the sheet metal plate 81, so that the sheet metal plate 81 can be deformed or bent, thereby shaking the gravel on the surface of the sheet metal plate 81.

[0028] Please see Figure 9 and Figure 10As shown, the connecting sleeve 84 and the fixed shaft 4 are connected by a key, and the connecting sleeve 84 and the fixed shaft 4 rotate synchronously. The bottom end of the partition plate 71 is provided with a mating groove 85, and the mating groove 85 is adapted to the surface of the sheet metal plate 81. When the fixed shaft 4 rotates, the connecting sleeve 84 will rotate, thereby striking the sheet metal plate 81. Under the action of the telescopic spring 87, the sheet metal plate 81 contacts the mating groove 85, preventing the sheet metal plate 81 from deforming too much and causing the sheet metal plate 81 to detach.

[0029] It should be noted that when the fixed shaft 4 rotates, the connecting sleeve 3 84 on the fixed shaft 4 rotates synchronously. The connecting sleeve 3 84 can push the end of the connecting strip 2 83, so that the connecting strip 2 83 moves up and down along the direction of the mating sleeve 86. The end of the connecting strip 2 83 can strike the edge of the sheet metal plate 81, which can strike the sheet metal plate 81 to deform or bend it. The gravel on the upper surface of the sheet metal plate 81 can be shaken, and the gravel is discharged from the discharge chute 3. Under the action of the telescopic spring 87, the sheet metal plate 81 is reset. When the sheet metal plate 81 contacts the mating groove 85 of the partition plate 1 71, it can prevent the sheet metal plate 81 from deforming too much and causing the sheet metal plate 81 to detach.

[0030] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crushed stone sorting device for mining, comprising a vibrating screen body (1), a placement cavity (2), a discharge chute (3), a fixed shaft (4), and a fixed roller (5), wherein the placement cavity (2) is opened inside the vibrating screen body (1), and the discharge chute (3) is disposed on one side of the vibrating screen body (1), the fixed shaft (4) is transversely disposed at the upper end of the vibrating screen body (1), and the fixed roller (5) is sleeved on the outside of the fixed shaft (4), and a drive motor (9) is disposed on one side of the vibrating screen body (1) and at the end of each fixed shaft (4), and the fixed roller (5) rotates synchronously with the fixed shaft (4); characterized in that, At both ends of the fixed shaft (4) and on both sides of the vibrating screening machine body (1), a spacing adjustment structure (6) is provided. The spacing adjustment structure (6) includes a fixed end cover (61), which is sleeved on the end of each fixed shaft (4). A rotating bearing (62) is provided in the center of the fixed end cover (61). A connecting hole (68) is provided inside each of the four corners of each fixed end cover (61). A telescopic rod (67) is provided inside each connecting hole (68). The telescopic rod (67) is slidably connected to the inside of the connecting hole (68). A connecting sleeve (63) is welded to the end of each telescopic rod (67). A connecting rod assembly (66) is provided between two adjacent fixed end covers (61). 6) Each of the four corners is provided with a connecting rod 1 (64), and the four connecting rods 1 (64) of the connecting rod assembly (66) are welded to the connecting sleeve 1 (63) respectively. The connecting rod 1 (64) passes through the interior of the two connecting sleeves 1 (63). Each end of the connecting sleeve 1 (63) is provided with a through hole, and a connecting rod 2 (65) is provided inside the through hole. The connecting rod 2 (65) is slidably connected to all the connecting rod 2 (65) inside. The distance between the fixed shafts (4) increases in sequence, and the distance between the connecting rod assemblies (66) increases in sequence. The connecting rod assembly (66) is located between each fixed shaft (4). The connecting rod assemblies (66) extend and retract simultaneously. The connecting rod assembly (66) is used to adjust the distance between each fixed shaft (4).

2. The crushed stone sorting device for mining according to claim 1, characterized in that, The linkage assembly (66) consists of several sets of intersecting links, with the number of links increasing sequentially. A connecting block is provided between the intersecting links, and the two ends of the links are rotatably connected to the connecting blocks. The end of the first connecting rod (64) is fixed to the connecting block.

3. A crushed stone sorting device for mining according to claim 2, characterized in that, The connecting rod 1 (64) at the upper end of the fixed end cap (61) and the connecting rod 1 (64) at the lower end of the fixed end cap (61) are close to or far from each other. The maximum extension distance of the connecting sleeve 1 (63) is less than the depth of the connecting hole 1 (68), and the length of the connecting rod 2 (65) is greater than the distance between the two furthest fixed shafts (4).

4. A crushed stone sorting device for mining according to claim 3, characterized in that, A fixing hole is provided at the end of the fixed shaft (4) on the side wall of the vibrating screen body (1) and at the edge. A fixing groove (10) is provided at the end of the other fixed shafts (4) on the side wall of the vibrating screen body (1), and the length of the fixing groove (10) is getting larger and larger. A fixing block (69) is provided at the longest fixing groove (10) on the side wall of the vibrating screen body (1). A threaded rod (610) is threadedly connected inside the fixing block (69). A nut (612) is threadedly connected to the end of the threaded rod (610). A connector (611) is welded to the side wall of the fixed end cap (61) on the edge. A reserved opening (613) is provided on the side wall of the connector (611). The end of the threaded rod (610) passes through the interior of the reserved opening (613), and the end of the threaded rod (610) is rotatably connected to the reserved opening (613).

5. A crushed stone sorting device for mining according to claim 4, characterized in that, The direction of the threaded rod (610) is parallel to the direction of the connecting rod (65), and the length of the threaded rod (610) is greater than the length of the longest fixing groove (10). The end of the threaded rod (610) is used to limit the position of the fixing end cap (61).

6. A crushed stone sorting device for mining according to any one of claims 1-5, characterized in that, The vibrating screen body (1) is provided with an interval structure (7) inside and below the fixed roller (5). The interval structure (7) includes several interval plates one (71) and interval plates two (72). The interval plates one (71) are located below each fixed shaft (4). The interval plates one (71) and interval plates two (72) are manufactured as a single unit. The interval plates two (72) are located above the discharge trough (3). The two ends of the interval plates one (71) and the two ends of the fixed shaft (4) are welded with connecting strip one (73) and connecting sleeve two (74). The interior of the connecting sleeve two (74) is rotatably connected to the fixed shaft (4). The interval plates one (71) and the fixed shaft (4) move synchronously. The interval plates one (71) are used to separate crushed stones of different sizes.

7. A crushed stone sorting device for mining according to claim 6, characterized in that, The connecting sleeve 2 (74) has a connecting hole 2 (75) inside. The connecting hole 2 (75) of the connecting sleeve 2 (74) fits into the fixed shaft (4), and the diameter of the connecting hole 2 (75) is compatible with the diameter of the fixed shaft (4).

8. A crushed stone sorting device for mining according to claim 7, characterized in that, The vibrating screen body (1) is provided with a vibration structure (8) at the bottom of its interior. The vibration structure (8) includes a sheet metal plate (81). The sheet metal plate (81) is located at the bottom of the vibrating screen body (1) and is arranged in a bent manner. There is a hollow layer between the sheet metal plate (81) and the placement cavity (2). The two edges of the sheet metal plate (81) are fixed to the side wall of the vibrating screen body (1) by fastening bolts (82). A row of telescopic springs (87) is provided inside the bottom of the vibrating screen body (1). A matching sleeve (86) is welded to one side wall of the vibrating screen body (1). A connecting strip two (83) is slidably connected inside the matching sleeve (86). The bottom end of the connecting strip two (83) is in contact with the sheet metal plate (81). A connecting sleeve three (84) is provided at one end of the fixed shaft (4) on a cylindrical surface and at a position corresponding to the connecting strip two (83). The end of the connecting sleeve three (84) is in intermittent contact with the connecting strip two (83).

9. A crushed stone sorting device for mining according to claim 8, characterized in that, The connecting sleeve three (84) is connected to the fixed shaft (4) by a key, and the connecting sleeve three (84) and the fixed shaft (4) rotate synchronously. The bottom end of the partition plate one (71) is provided with a mating groove (85), and the mating groove (85) is adapted to the surface of the sheet metal plate (81).

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