Stepped coal vibration sorting machine

Abstract

The utility model provides a step type coal vibration sorting machine which comprises a screening box and a transfer frame, a conveying frame is installed on the side, away from the transfer frame, of the screening box, a vibration excitation box is installed in the screening box, three sieve plates are arranged on the inner wall of the vibration excitation box, and the three sieve plates are installed on the inner wall of the vibration excitation box in a step mode. Gangue outlets are formed in the positions, corresponding to the screen plates, of the side wall of the vibration excitation box, adjusting devices are arranged on the positions, corresponding to the screen plates, of the inner wall of the vibration excitation box, collecting devices are arranged on the positions, corresponding to the gangue outlets, of the side wall of the screening box, and butt joint devices are arranged on the positions, corresponding to the gangue outlets, of the side wall of the vibration excitation box. An auxiliary box is installed at the bottom end of the screening box. The vibration excitation box in the screening box is used for carrying out vibration screening on coal on the sieve plates, the sieve plates in the whole vibration excitation box are placed in a stepped mode, and then the stepped coal vibration sorting technology is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal sorting machines, in particular to a step-type coal vibration sorting machine. Background Art

[0002] In the deep processing of coal, pre-selection of coal gangue is an important link in coal mine production, which can greatly improve the quality and utilization rate of coal and reduce the transportation cost of coal. In order to facilitate the sorting and transportation of coal, larger coal should be crushed. The size of the crushed coal is reasonable, but the coal still needs to be sorted, which is more common in daily life.

[0003] Traditional methods of gangue sorting mostly use manual methods to sort the gangue in coal, that is, manually picking and separating the gangue in the coal on both sides of the conveyor belt that transports the coal. This method consumes a lot of manpower, has low sorting efficiency, and has certain safety accidents. At the same time, during the picking process, the surface of the coal will cause dust due to mechanical vibration. These dusts will not only interfere with manual vision, but also cause harm to the bodies of the gangue sorters.

[0004] In addition, in the prior art, a single sieve plate is often used for vibration sorting for screening, which utilizes coal vibration sorting equipment for screening. However, there are problems such as low efficiency of vibration screening and unclear purity distinction of screened clean coal. Summary of the invention

[0005] Based on the technical problems existing in the prior art, the utility model provides a step-type coal vibration sorting machine, which solves the problem that a single sieve plate is often used for vibration sorting in the prior art. It uses coal vibration sorting equipment for screening, but there are problems such as low vibration screening efficiency and unclear purity distinction of screened clean coal. The vibration screening is performed on the coal on the sieve plate through the vibration box in the screening box, and the sieve plates in the entire vibration box are placed in a stepped manner, thereby realizing a step-type coal vibration sorting process.

[0006] According to the technical solution of the utility model, a stepped coal vibration sorting machine includes a screening box and a transfer frame, a conveying frame is installed on the side of the screening box away from the transfer frame, a vibration box is installed inside the screening box, three sieve plates are arranged on the inner wall of the vibration box, and the three sieve plates are installed in a stepped manner on the inner wall of the vibration box, and gangue outlets are arranged at positions of the sieve plates on the side walls of the vibration box, an adjusting device is arranged at positions of the sieve plates on the inner walls of the vibration box, a collecting device is arranged at positions of the gangue outlets on the side walls of the screening box, and a docking device is arranged at positions of the gangue outlets on the side walls of the vibration box; an auxiliary box is installed at the bottom end of the screening box.

[0007] Preferably, the collecting device includes a guide frame, a collecting box and a sliding assembly. The guide frame is fixedly connected to the screening box. The bottom end of the collecting box is rotatably connected to four pulleys. The four pulleys are distributed in a rectangular shape. A pull rod is rotatably connected to one side of the collecting box. Both end side walls of the collecting box are fixedly connected to positioning plates. Positions of the auxiliary boxes corresponding to the positioning plates are fixedly connected to positioning blocks. The surfaces of the positioning plates and the positioning blocks are slidably penetrated by the same moving rod. The arc surface of the moving rod is sleeved with a tension spring. Both ends of the tension spring are respectively fixedly connected to the moving rod and the positioning block. The sliding assembly includes a slide plate. One side of the slide plate is fixedly connected to the auxiliary box.

[0008] Furthermore, the adjusting device includes four fixing plates, a limiting component and a cleaning component.

[0009] Preferably, the four fixing plates are all fixedly connected to the inner wall of the excitation box, the upper ends of the four fixing plates are all fixedly connected to the first telescopic rods, and the upper ends of the four first telescopic rods are fixedly connected to the same protective frame.

[0010] Preferably, the arc surfaces of the first telescopic rods are sleeved with first springs, both ends of the first springs are fixedly connected to the protection frame and the fixing plate respectively, and the cross-sectional dimensions of the protection frame are matched with the cross-sectional dimensions of the sieve plate.

[0011] Preferably, the cleaning assembly includes a fixed frame, which is fixedly connected to one side of the protective frame, a servo motor is fixedly connected to the inner wall of the fixed frame, an output end of the servo motor is fixedly connected to a drive rod, and one end of the drive rod is rotatably connected to the inner wall of the protective frame.

[0012] Preferably, the arc surface thread of the driving rod passes through a movable plate, one end of the movable plate slides through a limiting rod, both ends of the limiting rod are fixedly connected to the inner wall of the protective frame, the surface of the movable plate is fixedly connected to the limiting frame, and the inner wall of the limiting frame is slidably connected to a rack.

[0013] Preferably, a driving motor is fixedly connected to a position on the surface of the movable plate corresponding to the limit frame, and a gear is fixedly connected to an output end of the driving motor, and the tooth surface of the gear meshes with the tooth surface of the rack.

[0014] Preferably, the bottom end of the rack is fixedly connected to a connecting plate, the bottom surface of the connecting plate is fixedly connected to a second telescopic rod, the bottom end of the second telescopic rod is fixedly connected to a cleaning plate, and the bottom surface of the cleaning plate is fixedly connected to a plurality of cleaning hair columns.

[0015] Preferably, the limiting assembly includes two fixing rings, which are respectively fixedly connected to both sides of the movable plate, the inner walls of the two fixing rings are slidably connected with sliding rods, the bottom ends of the sliding rods are fixedly connected to the connecting plate, and a number of limiting columns are slidably penetrated through the two end surfaces of the connecting plate, the bottom ends of the number of limiting columns are fixedly connected to the cleaning plate, the arc surfaces of the limiting columns are each covered with a second spring, and the two ends of the second spring are respectively fixedly connected to the connecting plate and the cleaning plate; the arc surface of the sliding rod is fixedly connected with a protective cover, and the arc surface of the protective cover is slidably connected to the inner wall of the fixing ring.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] 1. When the utility model ladder-type coal vibration separator vibrates and separates the coal, the conveying frame on one side of the screening box is first used to convey the coal, and then the coal on the screen plate is vibrated and screened by the vibration box in the screening box, so that the entire coal is effectively and conveniently screened in a ladder-like manner, and then the transfer frame on one side of the screening box is used to transfer the screened coal, and the blower on one side of the auxiliary box can recycle the distribution of the entire purification cycle into the blast port. In this process, in order to better protect the coal on the screen plate, it is operated and used through the adjustment device.

[0018] 2. The utility model provides a step-type coal vibration sorting machine with an adjusting device. When the entire vibration box is operated, in order to prevent the coal on the screen plate inside the vibration box from splashing around, the fixing plate on the side wall of the vibration box and the first telescopic rod are fixed and limited, and then the protective frame on the first telescopic rod is used for effective protection. The tension generated by the first spring on the arc surface of the first telescopic rod can squeeze the position of the protective frame to prevent the protective frame and the vibration box from being damaged by collision. The protective frame is then used to protect the coal on the screen plate, thereby preventing the coal from vibrating excessively during the screening process, which may cause coal splashing and damage. After the screen plate is used for a long time, in order to facilitate the cleaning of the screen plate, the servo motor on the protective frame is used to allow the driving rod on the servo motor to drive the position of the moving plate. The cleaning plate is then driven by the connecting plate at the bottom end of the rack to clean the surface of the screen plate. When the cleaning plate is limited in position, in order to better clean, the sliding rods at both ends of the connecting plate and the fixed ring on the moving plate are used for sliding limit, and then the limiting column sliding through the connecting plate and the cleaning plate are used for moving limit. The tension generated by the second spring on the arc surface of the limiting column can adjust the position of the connecting plate and limit it, so as to better squeeze and clean the cleaning plate. When the fixed ring and the sliding rod are used for sliding movement, the protective cover on the sliding rod can be used to protect the sliding rod to avoid excessive friction and damage between the sliding rod and the fixed ring.

[0019] 3. The utility model provides a step-type coal vibration sorting machine with a collecting device. In the process of collecting gangue, in order to facilitate the operation of the collecting box, the collecting box is conveniently moved by the rollers on the bottom end, and the positioning plate on the collecting box is abutted against the positioning block on the auxiliary box, and the positioning plate and the positioning block are plugged and limited by the moving rod, and the tension generated by the tension spring on the moving rod can limit and fix the position of the moving rod, thereby effectively and conveniently fixing the position of the entire collecting box. When collecting gangue in the collecting box, in order to facilitate the sliding adjustment of the position of the collecting box, the auxiliary frame on the collecting box is used to allow the rotating roller on the auxiliary frame to slide and limit with the slide plate on the auxiliary box, thereby effectively and conveniently adjusting the position of the entire collecting box. In the process of operating the roller, in order to facilitate the protection of the arc surface of the roller, the friction sleeve of rubber material on the roller is used for protection.

[0020] 4. The utility model ladder-type coal vibration sorting machine is provided with auxiliary devices. When the gangue outlet is used for the transportation and conveying of the gangue, in order to facilitate the docking and limiting between the gangue outlet and the screening frame, the bellows are used for docking and fixing. During the operation and use of the bellows, the position of the bellows needs to be fixed and limited. At this time, the fixing frame at one end of the collecting device is used to rotate the rotating rod on the fixing frame, and then the docking block at one end of the rotating rod is used to abut against the connecting block on the positioning frame, and then the connecting block and the docking block are threadedly fixed and limited by the rotating shaft, thereby effectively facilitating the limiting and fixing protection of the position of the entire bellows. When the third telescopic rod on the positioning frame is operated and used, the tension generated by the third spring can be used to better squeeze and protect the position of the entire connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural schematic diagram of a stepped coal vibration separator is proposed for the utility model;

[0022] Figure 2 The utility model provides a three-dimensional side structural schematic diagram of a stepped coal vibration separator;

[0023] Figure 3 The utility model provides a schematic diagram of the three-dimensional structure of a stepped coal vibration separator;

[0024] Figure 4 The utility model provides a structural schematic diagram of an adjustment device of a stepped coal vibration separator;

[0025] Figure 5The utility model provides a partial structural schematic diagram of an adjustment device of a stepped coal vibration separator;

[0026] Figure 6 The utility model proposes a ladder-type coal vibration separator Figure 4 A schematic diagram of the enlarged structure at B;

[0027] Figure 7 The utility model provides a structural schematic diagram of a collecting device of a stepped coal vibrating separator;

[0028] Figure 8 The utility model proposes a ladder-type coal vibration separator Figure 7 A schematic diagram of the enlarged structure at point A;

[0029] Fig. 9 The utility model provides a partial structural schematic diagram of a collecting device of a stepped coal vibration separator;

[0030] Fig.10 The utility model provides a structural schematic diagram of an auxiliary device of a stepped coal vibrating separator;

[0031] Fig.11 The utility model provides a partial structural schematic diagram of an auxiliary device of a stepped coal vibration separator;

[0032] Fig.12 The utility model provides a schematic diagram of the disassembled structure of an auxiliary device of a stepped coal vibration separator.

[0033] Description of the reference numerals in the accompanying drawings: 1. screening box; 2. transfer rack; 3. conveying rack; 4. auxiliary box; 5. blower; 6. adjusting device; 61. protection frame; 62. fixing plate; 63. first telescopic rod; 64. first spring; 65. cleaning assembly; 6501. fixing frame; 6502. servo motor; 6503. driving rod; 6504. limiting rod; 6505. moving plate; 6506. limiting frame; 6507. driving motor; 6508. gear; 6509. rack; 6510. connecting plate; 6511. second telescopic rod; 6512. cleaning plate; 66. limiting assembly; 661. fixing ring; 662. sliding rod; 6 63. Protective sleeve; 664. Limit column; 665. Second spring; 7. Docking device; 71. Bellows; 72. Fixed frame; 73. Rotating rod; 74. Docking block; 75. Positioning frame; 76. Third telescopic rod; 77. Third spring; 78. Connecting block; 79. Rotating shaft; 8. Collecting device; 81. Guide frame; 82. Collecting box; 83. Pulley; 84. Pull rod; 85. Sliding assembly; 851. Slide plate; 852. Slide groove; 853. Auxiliary frame; 854. Roller; 855. Friction sleeve; 86. Positioning block; 87. Positioning plate; 88. Moving rod; 89. Tension spring; 9. Gangue outlet; 10. Excitation box; 11. Screen plate. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0036] The utility model discloses a step-type coal vibrating separator, which includes a screening box, an auxiliary box is installed at the bottom of the screening box, a blower is installed on one side of the auxiliary box, and a transfer frame is installed on the side wall of the auxiliary box. A conveying frame is installed on the side of the screening box away from the transfer frame, an exciting box is installed inside the screening box, and three sieve plates are arranged on the inner wall of the exciting box in a step-like manner.

[0037] Preferably, the side wall of the excitation box is provided with a gangue outlet at a position corresponding to the sieve plate, and the inner wall of the excitation box is provided with an adjustment device at a position corresponding to the sieve plate, and the adjustment device includes four fixed plates, a limit assembly and a cleaning assembly. The four fixed plates are fixedly connected to the inner wall of the excitation box, the upper ends of the four fixed plates are fixedly connected to a first telescopic rod, and the upper ends of the four first telescopic rods are fixedly connected to the same protective frame.

[0038] Preferably, the arc surface of the first telescopic rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the protection frame and the fixed plate, and the cross-sectional size of the protection frame is adapted to the cross-sectional size of the sieve plate. The cleaning assembly includes a fixed frame, the fixed frame is fixedly connected to one side of the protection frame, the inner wall of the fixed frame is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a drive rod, and one end of the drive rod is rotatably connected to the inner wall of the protection frame.

[0039] Preferably, the arc surface thread of the driving rod passes through a movable plate, one end of the movable plate slides through a limiting rod, both ends of the limiting rod are fixedly connected to the inner wall of the protective frame, the surface of the movable plate is fixedly connected to the limiting frame, and the inner wall of the limiting frame is slidably connected to a rack.

[0040] Preferably, a driving motor is fixedly connected to the position of the movable plate surface corresponding to the limit frame, and a gear is fixedly connected to the output end of the driving motor, and the tooth surface of the gear meshes with the tooth surface of the rack. The bottom end of the rack is fixedly connected to a connecting plate, and the bottom surface of the connecting plate is fixedly connected to a second telescopic rod, and the bottom end of the second telescopic rod is fixedly connected to a cleaning plate, and the bottom surface of the cleaning plate is fixedly connected to a plurality of cleaning hair columns.

[0041] Preferably, the limiting assembly includes two fixing rings, which are respectively fixedly connected to both sides of the movable plate, the inner walls of the two fixing rings are slidably connected with sliding rods, the bottom ends of the sliding rods are fixedly connected to the connecting plate, and a number of limiting columns are slidably penetrated through the two end surfaces of the connecting plate, the bottom ends of the number of limiting columns are fixedly connected to the cleaning plate, the arc surfaces of the limiting columns are each covered with a second spring, and the two ends of the second spring are respectively fixedly connected to the connecting plate and the cleaning plate; the arc surface of the sliding rod is fixedly connected with a protective cover, and the arc surface of the protective cover is slidably connected to the inner wall of the fixing ring.

[0042] The ladder-type coal vibration separator of the present invention is described in detail below in conjunction with the accompanying drawings.

[0043] like Figure 1-12 As shown, the utility model provides a stepped coal vibration separator, comprising a screening box 1, an auxiliary box 4 is installed at the bottom end of the screening box 1, a blower 5 is installed on one side of the auxiliary box 4, a transfer frame 2 is installed on the side wall of the auxiliary box 4, a conveying frame 3 is installed on the side of the screening box 1 away from the transfer frame 2, an exciting box 10 is installed inside the screening box 1, three sieve plates 11 are arranged on the inner wall of the exciting box 10 in a stepped manner, gangue outlets 9 are arranged at positions of the sieve plates 11 on the side walls of the exciting box 10, an adjusting device 6 is arranged at positions of the sieve plates 11 on the inner wall of the exciting box 10, a collecting device 8 is arranged at positions of the gangue outlet 9 on the side walls of the screening box 1, and a docking device 7 is arranged at positions of the gangue outlet 9 on the side walls of the exciting box 10.

[0044] The specific settings and functions of the adjusting device 6, the collecting device 8 and the docking device 7 are described in detail below.

[0045] like Figure 4 , Figure 5 and Figure 6 As shown, the adjusting device 6 includes four fixed plates 62, a limit assembly 66 and a cleaning assembly 65. The four fixed plates 62 are fixedly connected to the inner wall of the excitation box 10. The upper ends of the four fixed plates 62 are fixedly connected to the first telescopic rods 63. The upper ends of the four first telescopic rods 63 are fixedly connected to the same protective frame 61. The arc surface of the first telescopic rod 63 is sleeved with a first spring 64. The two ends of the first spring 64 are fixedly connected to the protective frame 61 and the fixed plate 62 respectively. The cross-sectional size of the protective frame 61 is adapted to the cross-sectional size of the sieve plate 11. The cleaning assembly 65 includes a fixed frame 6501, and the fixed frame 6501 and the protective frame 61 are connected to each other. 1 is fixedly connected to one side of the fixed frame 6501, the inner wall of the fixed frame 6501 is fixedly connected to a servo motor 6502, the output end of the servo motor 6502 is fixedly connected to a driving rod 6503, one end of the driving rod 6503 is rotatably connected to the inner wall of the protective frame 61, the arc surface thread of the driving rod 6503 penetrates a moving plate 6505, one end of the moving plate 6505 slides through a limiting rod 6504, both ends of the limiting rod 6504 are fixedly connected to the inner wall of the protective frame 61, the surface of the moving plate 6505 is fixedly connected to the limiting frame 6506, the inner wall of the limiting frame 6506 is slidably connected to a rack 6509, and the moving plate 6505 The position of the surface corresponding to the limit frame 6506 is fixedly connected with a driving motor 6507, and the output end of the driving motor 6507 is fixedly connected with a gear 6508, and the tooth surface of the gear 6508 is meshed with the tooth surface of the rack 6509. The bottom end of the rack 6509 is fixedly connected with a connecting plate 6510, and the bottom surface of the connecting plate 6510 is fixedly connected with a second telescopic rod 6511, and the bottom end of the second telescopic rod 6511 is fixedly connected with a cleaning plate 6512, and the bottom surface of the cleaning plate 6512 is fixedly connected with a plurality of cleaning hair columns. The limiting component 66 includes two fixing rings 661, and the two fixing rings 661 are respectively connected to the movable plate 6505 The two sides are fixedly connected, and the inner walls of the two fixed rings 661 are slidably connected with sliding rods 662. The bottom ends of the sliding rods 662 are fixedly connected to the connecting plate 6510. The two end surfaces of the connecting plate 6510 are slidably penetrated by a number of limiting columns 664. The bottom ends of the limiting columns 664 are fixedly connected to the cleaning plate 6512. The arc surfaces of the limiting columns 664 are sleeved with second springs 665. The two ends of the second spring 665 are respectively fixedly connected to the connecting plate 6510 and the cleaning plate 6512. The arc surface of the sliding rod 662 is fixedly connected with a protective sleeve 663. The arc surface of the protective sleeve 663 is slidably connected to the inner wall of the fixed ring 661.

[0046] The effect achieved by the entire adjustment device 6 is that the fixed plate 62 on the side wall of the vibration box 10 and the first telescopic rod 63 are fixed and limited, and then effective protection is provided by the protective frame 61 on the first telescopic rod 63. The tension generated by the first spring 64 on the arc surface of the first telescopic rod 63 can squeeze the position of the protective frame 61 to avoid collision and damage between the protective frame 61 and the vibration box 10, and then the protective frame 61 is used to protect the coal on the screen plate 11, thereby avoiding excessive vibration of the coal during the screening process, which may cause splashing and damage of the coal.

[0047] like Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the collecting device 8 includes a guide frame 81, a collecting box 82 and a sliding assembly 85. The guide frame 81 is fixedly connected to the screening box 1. The bottom end of the collecting box 82 is rotatably connected to four pulleys 83, and the four pulleys 83 are distributed in a rectangular shape. One side of the collecting box 82 is rotatably connected to a pull rod 84. The two end side walls of the collecting box 82 are fixedly connected to positioning plates 87. The positions of the auxiliary box 4 corresponding to the positioning plates 87 are fixedly connected to positioning blocks 86. The surfaces of the positioning plates 87 and the positioning blocks 86 are slidably penetrated by the same moving rod 88. The arc surface of the moving rod 88 It is sleeved with a tension spring 89, and the two ends of the tension spring 89 are fixedly connected to the moving rod 88 and the positioning block 86 respectively. The sliding assembly 85 includes a slide plate 851, one side of the slide plate 851 is fixedly connected to the auxiliary box 4, and slide grooves 852 are provided on both sides of the slide plate 851. Auxiliary frames 853 are fixedly connected to both sides of the collection box 82, and rollers 854 are rotatably connected at both ends of the auxiliary frame 853. The arc surface of the roller 854 is slidably connected to the inner wall of the slide groove 852, and the arc surface of the roller 854 is sleeved with a friction sleeve 855, which is a rubber sleeve.

[0048] The effect achieved by the entire collecting device 8 is that the collecting box 82 is conveniently moved by the roller 854 on the bottom end, and the positioning plate 87 on the collecting box 82 is used to abut against the positioning block 86 on the auxiliary box 4, and the positioning plate 87 and the positioning block 86 are inserted and limited by the moving rod 88, and the tension generated by the tension spring 89 on the moving rod 88 can limit and fix the position of the moving rod 88, thereby effectively and conveniently fixing the position of the entire collecting box 82.

[0049] like Fig.10 , Fig.11 and Fig.12As shown, the docking device 7 includes a bellows 71, one end of the bellows 71 slides through the side wall of the screening box 1, one end of the bellows 71 is fixedly connected to four fixing frames 72, the four fixing frames 72 are distributed in a rectangular shape, the inner walls of the four fixing frames 72 are rotatably connected to rotating rods 73, one end of the rotating rods 73 is fixedly connected to a docking block 74, and a positioning frame 75 is fixedly connected to the position of the rotating rod 73 on the surface of the screening box 1. The positioning frame 75 is fixedly connected to the third telescopic rod 76 at one end close to the rotating rod 73, and the third telescopic rod 76 is fixedly connected to a connecting block 78 at one end, and the connecting block 78 abuts against the docking block 74. The arc surface of the connecting block 78 and the docking block 74 is threadedly connected to the same rotating shaft 79, and the arc surface of the third telescopic rod 76 is sleeved with a third spring 77, and the two ends of the third spring 77 are respectively fixedly connected to the connecting block 78 and the fixed end of the third telescopic rod 76.

[0050] The effect achieved by the entire docking device 7 is that the bellows 71 is docked and fixed. During the operation and use of the bellows 71, the position of the bellows 71 needs to be fixed and limited. At this time, the fixing frame 72 at one end of the bellows 71 is used to rotate the rotating rod 73 on the fixing frame 72, and then the docking block 74 at one end of the rotating rod 73 is used to abut against the connecting block 78 on the positioning frame 75, and then the rotating shaft 79 is used to thread and fix the connecting block 78 and the docking block 74, thereby effectively and conveniently limiting and fixing the position of the entire bellows 71 for protection.

[0051] Modifications are made on the basis of the above embodiment. The overall working principle after the modification is that when the coal is vibrated and sorted, the conveying frame 3 on one side of the screening box 1 is first used to convey the coal, and then the coal on the sieve plate 11 is vibrated and screened by the exciting box 10 in the screening box 1, so that the entire coal is effectively and conveniently step-screened, and then the transfer frame 2 on one side of the screening box 1 is used to transfer the screened coal, and the blower 5 on one side of the auxiliary box 4 can recycle the distribution of the entire purification cycle into the blast port. In this process, in order to better protect the coal on the sieve plate 11, it is operated and used at this time through the adjustment device 6.

[0052] When the entire vibration box 10 is operated and used again, in order to prevent the coal on the sieve plate 11 inside the vibration box 10 from splashing around, the fixed plate 62 on the side wall of the vibration box 10 and the first telescopic rod 63 are fixed and limited, and then the protective frame 61 on the first telescopic rod 63 is effectively protected, and the tension generated by the first spring 64 on the arc surface of the first telescopic rod 63 can squeeze the position of the protective frame 61 to prevent the protective frame 61 and the vibration box 10 from being damaged by collision. The protective frame 61 is used to protect the coal on the sieve plate 11, thereby preventing excessive vibration of the coal during the screening process, which may cause coal splashing and damage. After the sieve plate 11 is used for a long time, in order to facilitate the cleaning of the sieve plate 11, the servo motor 6502 on the protective frame 61 is used to drive the driving rod 6503 on the servo motor 6502 to drive the movement of the position of the moving plate 6505, so that the moving plate 6505 is slid and limited along the limiting rod 6504, and then the driving motor 6 507 drives the gear 6508 and the rack 6509 to rotate, allowing the rack 6509 to slide along the limit frame 6506 on the movable plate 6505, and then the connecting plate 6510 on the bottom end of the rack 6509 drives the cleaning plate 6512 to clean the surface of the sieve plate 11. When the position of the cleaning plate 6512 is limited, in order to better clean, the sliding rods 662 at both ends of the connecting plate 6510 and the fixed ring 661 on the movable plate 6505 are slidably limited, and then the connecting plate The limiting column 664 sliding through 6510 is moved and limited by the cleaning plate 6512, and the tension generated by the second spring 665 on the arc surface of the limiting column 664 can adjust and limit the position of the connecting plate 6510, so as to better squeeze and clean the cleaning plate 6512. When the fixing ring 661 and the sliding rod 662 are used to slide, the protective cover 663 on the sliding rod 662 can be used to protect the sliding rod 662 to avoid excessive friction and damage between the sliding rod 662 and the fixing ring 661.

[0053] In the process of collecting the gangue, in order to facilitate the operation of the collection box 82, the collection box 82 is conveniently moved by the roller 854 at the bottom, and then the positioning plate 87 on the collection box 82 is abutted against the positioning block 86 on the auxiliary box 4, and then the positioning plate 87 and the positioning block 86 are inserted and limited by the moving rod 88, and the tension generated by the tension spring 89 on the moving rod 88 can limit the position of the moving rod 88, thereby effectively and conveniently fixing the position of the entire collection box 82. When the box 82 is collecting gangue, in order to facilitate the sliding adjustment of the position of the collection box 82, the auxiliary frame 853 on the collection box 82 is used to allow the rotating roller 854 on the auxiliary frame 853 and the slide plate 851 on the auxiliary box 4 to slide and limit, thereby effectively and conveniently adjusting the position of the entire collection box 82. During the operation of the roller 854, in order to facilitate the protection of the arc surface of the roller 854, the friction sleeve 855 made of rubber on the roller 854 is used for protection.

[0054] When using the gangue outlet 9 to transport and convey the gangue, in order to facilitate the docking and limiting between the gangue outlet 9 and the screening frame, the bellows 71 is used for docking and fixing. During the operation and use of the bellows 71, the position of the bellows 71 needs to be fixed and limited. At this time, the fixing frame 72 at one end of the bellows 71 is used to rotate the rotating rod 73 on the fixing frame 72, and then the docking block 74 at one end of the rotating rod 73 is docked with the connecting block 78 on the positioning frame 75, and then the rotating shaft 79 is used to threadably fix the connecting block 78 and the docking block 74, thereby effectively facilitating the limiting and fixing protection of the position of the entire bellows 71. When the third telescopic rod 76 on the positioning frame 75 is operated and used, the tension generated by the third spring 77 can be used to better squeeze and protect the position of the entire connecting block 78.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A step-type coal vibrating separator, comprising a screening box (1) and a transfer frame (2), characterized in that: A conveying frame (3) is installed on a side of the screening box (1) away from the transfer frame (2), an excitation box (10) is installed inside the screening box (1), three sieve plates (11) are arranged on the inner wall of the excitation box (10), and the three sieve plates (11) are installed on the inner wall of the excitation box (10) in a stepped manner, and gangue outlets (9) are arranged at positions of the side walls of the excitation box (10) corresponding to the sieve plates (11), an adjusting device (6) is arranged at positions of the inner walls of the excitation box (10) corresponding to the sieve plates (11), a collecting device (8) is arranged at positions of the side walls of the screening box (1) corresponding to the gangue outlets (9), and a docking device (7) is arranged at positions of the side walls of the excitation box (10) corresponding to the gangue outlets (9); an auxiliary box (4) is installed at the bottom end of the screening box (1).

2. A step-type coal vibrating separator according to claim 1, characterized in that: The collecting device (8) comprises a guide frame (81), a collecting box (82) and a sliding assembly (85), wherein the guide frame (81) is fixedly connected to the screening box (1), the bottom end of the collecting box (82) is rotatably connected to four pulleys (83), the four pulleys (83) are arranged in a rectangular shape, one side of the collecting box (82) is rotatably connected to a pull rod (84), both end side walls of the collecting box (82) are fixedly connected to positioning plates (87), the auxiliary box (4) is fixedly connected to a positioning block (86) at a position corresponding to the positioning plate (87), the surfaces of the positioning plate (87) and the positioning block (86) are slidably penetrated by a moving rod (88), the arc surface of the moving rod (88) is sleeved with a tension spring (89), the two ends of the tension spring (89) are respectively fixedly connected to the moving rod (88) and the positioning block (86), and the sliding assembly (85) comprises a slide plate (851), one side of the slide plate (851) is fixedly connected to the auxiliary box (4).

3. A step-type coal vibrating separator according to claim 2, characterized in that: The adjusting device (6) comprises four fixing plates (62), a limiting assembly (66) and a cleaning assembly (65).

4. A step-type coal vibrating separator according to claim 3, characterized in that: The four fixing plates (62) are all fixedly connected to the inner wall of the excitation box (10), the upper ends of the four fixing plates (62) are all fixedly connected to a first telescopic rod (63), and the upper ends of the four first telescopic rods (63) are fixedly connected to the same protective frame (61).

5. A step-type coal vibrating separator according to claim 4, characterized in that: The arc surfaces of the first telescopic rods (63) are sleeved with first springs (64), and the two ends of the first springs (64) are respectively fixedly connected to the protection frame (61) and the fixing plate (62), and the cross-sectional dimensions of the protection frame (61) are adapted to the cross-sectional dimensions of the screen plate (11).

6. The step-type coal vibrating separator according to claim 3, characterized in that: The cleaning assembly (65) comprises a fixed frame (6501), the fixed frame (6501) being fixedly connected to one side of the protective frame (61), the inner wall of the fixed frame (6501) being fixedly connected to a servo motor (6502), the output end of the servo motor (6502) being fixedly connected to a driving rod (6503), and one end of the driving rod (6503) being rotatably connected to the inner wall of the protective frame (61).

7. A step-type coal vibrating separator according to claim 6, characterized in that: The arc surface thread of the driving rod (6503) penetrates a movable plate (6505), one end of the movable plate (6505) slides through a limit rod (6504), both ends of the limit rod (6504) are fixedly connected to the inner wall of the protection frame (61), the surface of the movable plate (6505) is fixedly connected to the limit frame (6506), and the inner wall of the limit frame (6506) is slidably connected to a rack (6509).

8. The step-type coal vibrating separator according to claim 7, characterized in that: A driving motor (6507) is fixedly connected to a position of the surface of the movable plate (6505) corresponding to the limit frame (6506), and a gear (6508) is fixedly connected to the output end of the driving motor (6507), and the tooth surface of the gear (6508) meshes with the tooth surface of the rack (6509).

9. The step-type coal vibrating separator according to claim 8, characterized in that: The bottom end of the rack (6509) is fixedly connected to a connecting plate (6510), the bottom surface of the connecting plate (6510) is fixedly connected to a second telescopic rod (6511), the bottom end of the second telescopic rod (6511) is fixedly connected to a cleaning plate (6512), and the bottom surface of the cleaning plate (6512) is fixedly connected to a plurality of cleaning hair columns.

10. The step-type coal vibrating separator according to claim 9, characterized in that: The limiting assembly (66) comprises two fixing rings (661), the two fixing rings (661) are respectively fixedly connected to the two sides of the movable plate (6505), the inner walls of the two fixing rings (661) are slidably connected with a sliding rod (662), the bottom ends of the sliding rods (662) are fixedly connected to the connecting plate (6510), the surfaces of both ends of the connecting plate (6510) are slidably penetrated by a plurality of limiting columns (664), the bottom ends of the plurality of limiting columns (664) are fixedly connected to the cleaning plate (6512), the arc surfaces of the limiting columns (664) are sleeved with a second spring (665), the two ends of the second spring (665) are respectively fixedly connected to the connecting plate (6510) and the cleaning plate (6512); the arc surface of the sliding rod (662) is fixedly connected with a protective sleeve (663), and the arc surface of the protective sleeve (663) is slidably connected to the inner wall of the fixing ring (661).

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