Automatic coal classifying and screening equipment

Abstract

The utility model relates to the technical field of coal processing, and discloses automatic coal classifying and screening equipment which comprises two matching plates, a mounting plate, four open holes, four servo motors and four sliding tables. Through the cooperative use of the sliding table, the linkage assembly, the guide assembly, the gear, the sliding shaft, the connecting piece, the inner wheel shaft and the outer wheel bushing, when the sliding shaft moves between the two guide plates, a bearing can reduce the friction force generated when the sliding shaft moves, and the sliding shaft moves to drive the connecting piece to move; the connecting piece moves to drive the sliding table to receive the materials, so that the problems of high cost, long time consumption, low efficiency, intensive manual screening labor, high efficiency and the like due to the fact that good products and unavailable products are screened by a manual or simple mechanical method and mounting mechanical arms in various areas are solved; the screening accuracy is influenced by fatigue and proficiency of operators, and in addition, a mechanical method also needs regular maintenance, so that the screening accuracy is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal processing, in particular to automatic coal classification and screening equipment. Background Art

[0002] Coal is used as an important energy source in various industries such as power plants, steel mills, and chemical plants. The size and quality of coal determine its use. Therefore, proper classification of coal plays an important role in improving energy efficiency and improving the efficiency of industrial processes. In the coal sorting process, the gangue is mainly removed by a robotic arm. The gangue sorting in coal production is to improve the quality and calorific value of coal, while reducing transportation costs and environmental pollution. Many impurities such as gangue and stones will be mixed into the raw coal during the mining process. These impurities will reduce the calorific value and combustion efficiency of coal. By sorting the gangue, these impurities can be separated from the coal, thereby obtaining purer coal with higher calorific value. In addition, sorting gangue can also help reduce invalid weight in railway transportation, because gangue and other useless materials are no longer transported, which can reduce transportation costs. At the same time, sorting gangue can also reduce pollution to the environment, because gangue and other waste will not be discarded at will, but can be properly handled or reused.

[0003] A Chinese patent discloses a pneumatic manipulator for selecting slag, with the publication number: CN220331298U, comprising a bottom plate, an outer column, an inner column, a first motor, a second motor, a cylinder and a manipulator, and the pneumatic manipulator for selecting slag is provided with a mechanism for easy disassembly and assembly. The pneumatic manipulator for selecting slag, by starting the second motor, adjusting the electric push rod to a suitable length, and the cylinder drives the telescopic rod to rise and fall, so that the manipulator performs a part of the slag selecting work, which solves the problems of troublesome replacement when parts are damaged, high maintenance cost, and time-consuming and labor-intensive maintenance. In addition, the new pneumatic manipulator is not provided with a convenient adjustment device, which makes it inconvenient to adjust the position of the new pneumatic manipulator when in use, and the device cannot work in multiple directions, and manual adjustment is required, which is time-consuming and labor-intensive.

[0004] However, the above device still has the following problems during implementation:

[0005] The existing technology and the above-mentioned scheme make the existing gangue selection through manual or simple mechanical methods and the installation of mechanical arms in various areas to screen good products and unusable products. These methods are costly, time-consuming, inefficient, manual screening is labor-intensive, and the accuracy of screening is affected by the fatigue and proficiency of the operator. In addition, the mechanical method also requires regular maintenance, and the accuracy of screening is limited. Therefore, automatic coal sorting and screening equipment is proposed to solve the above problems. Summary of the invention

[0006] In view of the problems existing in the prior art, the utility model provides automatic coal sorting and screening equipment, which has the advantages of automatic sorting and screening of coal, can overcome the above problems or at least partially solve the problems that gangue selection is done by manual or simple mechanical methods and installing mechanical arms in various areas to screen good products and unusable products. These methods are costly, time-consuming, and inefficient. Manual screening is labor-intensive, and the accuracy of screening is affected by the fatigue and proficiency of the operator. In addition, mechanical methods also require regular maintenance, and the accuracy of screening is limited.

[0007] The utility model is implemented as follows: the automatic coal classification and screening equipment comprises two matching plates, a mounting plate, four openings, four servo motors and four sliding tables, the top of the matching plate is fixedly connected to the mounting plate by bolts, and the top angle of the matching plate is 60 degrees, the openings are opened at the four corners of the top of the mounting plate, the top of the servo motor is fixedly connected to the mounting plate by four bolts, and the top of the servo motor corresponds to the openings, and the sliding table is movably connected to the top of the mounting plate;

[0008] A linkage assembly for controlling the forward and backward movement of the sliding table, wherein the linkage assembly is arranged on the top of the servo motor;

[0009] A guide assembly is used to reduce friction when the linkage assembly moves, and eight of the guide assemblies are arranged on the top of the mounting plate.

[0010] As a preferred embodiment of the utility model, the linkage assembly includes a gear, the top output end of the servo motor passes through an opening and is fixedly connected to the gear, the top of the mounting plate is movably connected to a sliding shaft, the top of the sliding shaft is movably connected to a connecting piece, the bottom of the sliding table is fixedly connected to the sliding shaft and the connecting piece by a fixing pin, the bottom of the sliding shaft is fixedly connected to an inner wheel shaft used in conjunction with the gear, the number of the inner wheel shafts is multiple, and they are meshingly connected to the gear.

[0011] As a preferred embodiment of the utility model, the surface of the inner wheel shaft is sleeved with an outer wheel bushing, and when the outer wheel bushing is engaged with the gear, friction and noise can be reduced.

[0012] As a preferred embodiment of the utility model, the guide assembly includes two guide plates, the bottom of the guide plates are fixedly connected to the mounting plate by a fixing pin, the sliding shaft is movably connected to the opposite side of the two guide plates, and the shape of the opposite side of the guide plate is consistent with the sliding shaft, the top of the guide plate is provided with a first mounting groove, the bottom of the guide plate is provided with a second mounting groove, and the number of the second mounting grooves is three, bearings are fixedly installed on the opposite sides of the first mounting groove and the second mounting groove, and the number of bearings is five, and the surface of the sliding shaft is in contact with the bearing.

[0013] As a preferred embodiment of the utility model, the top of the guide plate is fixedly connected with a support block, the top of the support block is in contact with the sliding table, and the support block is an engineering high-density material with very excellent wear resistance and does not require lubrication when used.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model sets a sliding table, a linkage assembly, a guide assembly, a gear, a sliding shaft, a connecting piece, an inner wheel shaft and an outer wheel bushing for coordinated use. When the sliding shaft moves between the two guide plates, the bearing can reduce the friction force when the sliding shaft moves. The movement of the sliding shaft will drive the connecting piece to move. The movement of the connecting piece can drive the sliding table to pick up the material, thereby solving the problem that gangue selection is done by manual or simple mechanical methods and mechanical arms are installed in various areas to screen good products and unusable products. These methods are costly, time-consuming, and inefficient. Manual screening is labor-intensive, and the accuracy of screening is affected by the fatigue and proficiency of the operator. In addition, the mechanical method also requires regular maintenance, and the problem of limitations in screening accuracy.

[0016] 2. The utility model sets a linkage component. When the sliding table needs to be moved, the rotation of the servo motor will drive the gear to rotate. When the gear and the inner wheel shaft cooperate, they can drive the sliding shaft, the connecting piece and the sliding shaft to move simultaneously.

[0017] 3. The utility model provides an outer wheel bushing, and when the gear is meshing with the inner wheel shaft, the gear designed to be made using the cycloid curve principle rotates naturally when in contact, thereby minimizing the friction coefficient, reducing noise, and improving the durability of the gear.

[0018] 4. The utility model sets a guide component. When the sliding shaft moves, two guide plates wrap the sliding shaft to guide the sliding shaft in a moving state. The setting of the bearing can reduce the friction, so that the thrust required for movement is relatively small. Moreover, the bearing is a friction bearing made of high-density engineering plastic material, which can operate smoothly even in a dusty environment.

[0019] 5. The utility model provides a support block, and when the sliding table moves forward and backward, the support block is made of a high-density engineering material that does not require lubrication and has excellent wear resistance. In this way, when the support block supports the sliding table, it will not increase the friction too much and will not increase the burden on the servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a three-dimensional structure provided by an embodiment of the utility model;

[0021] Figure 2 It is a top perspective schematic diagram provided by an embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional connection diagram of a sliding platform and a linkage assembly provided by an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional connection between the guide plate and the mounting plate provided by the embodiment of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of a mounting plate provided by an embodiment of the utility model;

[0025] Figure 6 It is a three-dimensional schematic diagram of a linkage assembly provided by an embodiment of the utility model;

[0026] Figure 7 It is a three-dimensional schematic diagram of a guide assembly provided by an embodiment of the utility model.

[0027] In the figure: 1. matching plate; 2. mounting plate; 3. opening; 4. servo motor; 5. sliding table; 6. linkage assembly; 7. guide assembly; 61. gear; 62. sliding shaft; 63. connecting piece; 64. inner wheel shaft; 8. outer wheel bushing; 71. guide plate; 72. first mounting groove; 73. second mounting groove; 74. bearing; 9. support block. DETAILED DESCRIPTION

[0028] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0029] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 7 As shown, the automatic coal classification and screening device provided by the embodiment of the utility model comprises two matching plates 1, a mounting plate 2, four openings 3, four servo motors 4 and four sliding tables 5, the top of the matching plate 1 is fixedly connected to the mounting plate 2 by bolts, and the top angle of the matching plate 1 is 60 degrees, the openings 3 are opened at the four corners of the top of the mounting plate 2, the top of the servo motor 4 is fixedly connected to the mounting plate 2 by four bolts, and the top of the servo motor 4 corresponds to the openings 3, and the sliding table 5 is movably connected to the top of the mounting plate 2;

[0031] A linkage assembly 6 for controlling the forward and backward movement of the sliding platform 5, wherein the linkage assembly 6 is arranged on the top of the servo motor 4;

[0032] The guide assembly 7 is used to reduce the friction force when the linkage assembly 6 moves, and eight guide assemblies 7 are arranged on the top of the mounting plate 2.

[0033] refer to Figure 6The linkage assembly 6 includes a gear 61. The top output end of the servo motor 4 passes through the opening 3 and is fixedly connected to the gear 61. The top of the mounting plate 2 is movably connected to a sliding shaft 62. The top of the sliding shaft 62 is movably connected to a connecting piece 63. The bottom of the sliding table 5 is fixedly connected to the sliding shaft 62 and the connecting piece 63 through a fixing pin. The bottom of the sliding shaft 62 is fixedly connected to an inner wheel shaft 64 used in conjunction with the gear 61. There are multiple inner wheel shafts 64, which are meshed with the gear 61.

[0034] The above scheme is adopted: by setting the linkage component 6, when it is necessary to drive the sliding table 5 to move, the rotation of the servo motor 4 will drive the gear 61 to rotate, and when the gear 61 and the inner wheel shaft 64 cooperate, they can drive the three components of the sliding shaft 62, the connecting member 63 and the sliding shaft 62 to move simultaneously.

[0035] refer to Figure 7 The surface of the inner wheel shaft 64 is sleeved with an outer wheel bushing 8. When the outer wheel bushing 8 is engaged with the gear 61, friction and noise can be reduced.

[0036] The above scheme is adopted: by setting the outer wheel bushing 8, when the gear 61 is meshing with the inner wheel shaft 64, the gear 61 designed to be made using the cycloid curve principle rotates naturally when in contact, minimizing the friction coefficient, reducing noise, and improving the durability of the gear 61.

[0037] refer to Figure 7 The guide assembly 7 includes two guide plates 71, the bottom of the guide plates 71 is fixedly connected to the mounting plate 2 through a fixing pin, the sliding shaft 62 is movably connected to the opposite side of the two guide plates 71, and the shape of the opposite side of the guide plates 71 is consistent with the sliding shaft 62, a first mounting groove 72 is opened at the top of the guide plate 71, a second mounting groove 73 is opened at the bottom of the guide plate 71, and the number of the second mounting grooves 73 is three, a bearing 74 is fixedly installed on the opposite side of the first mounting groove 72 and the second mounting groove 73, and the number of the bearings 74 is five, and the surface of the sliding shaft 62 is in contact with the bearing 74.

[0038] The above scheme is adopted: by setting the guide component 7, when the sliding shaft 62 moves, the two guide plates 71 wrap the sliding shaft 62, which can guide the sliding shaft 62 in the moving state, and the setting of the bearing 74 can reduce the friction force, so that the thrust required for movement is relatively small, and the bearing 74 is a friction bearing 74 made of high-density engineering plastic material, which can operate smoothly even in a dusty environment.

[0039] refer to Figure 6 The top of the guide plate 71 is fixedly connected with a support block 9, the top of the support block 9 is in contact with the sliding table 5, and the support block 9 is an engineering high-density material with excellent wear resistance and does not require lubrication during use.

[0040] The above solution is adopted: by setting the support block 9, when the sliding table 5 moves forward and backward, because the support block 9 is an engineering high-density material that does not require lubrication and has very excellent wear resistance, the support block 9 supports the sliding table 5 without increasing the friction force too much and without increasing the burden on the servo motor 4.

[0041] The working principle of this utility model:

[0042] When processing coal, the coal automatic sorting and screening equipment is moved to the rear side of the conveyor belt, and then the placing machine evenly arranges the raw coal blocks on the surface of the conveyor belt. Then a laser sensor will identify the size and position of the gangue blocks, and then the sorting command will be transmitted to the servo motor 4. After receiving the command, the servo motor 4 will control the number of revolutions of the output end. The rotation of the output end will drive the gear 61 to rotate. Because the gear 61 is in a meshing state with the inner wheel shaft 64, the rotation of the gear 61 will drive the sliding shaft 62 of the bottom fixed inner wheel shaft 64 to move. When the sliding shaft 62 moves between the two guide plates 71, the bearing 74 can reduce the friction of the sliding shaft 62 when it moves. The movement of the sliding shaft 62 will drive the connecting member 63 to move. The movement of the connecting member 63 can drive the sliding table 5 to receive the material. The automatic sorting and screening of coal is completed through the above steps;

[0043] There are multiple sliding tables 5 on the structure formed by the sliding table 5 at an angle of 60 degrees, and the sliding table 5 can adjust the angle and automatic falling speed according to the situation to reduce or increase the angle, and the coal slides along the sliding table 5 for classification. The number of sliding tables 5 can be adjusted according to the width of the conveyor. The sliding table 5 determines the position and size of the object according to the command of the laser sensor, and the servo motor 4 moves the sliding table 5 to the end of the conveyor according to the command, which improves the creativity of the automatic coal classification and screening equipment and is convenient for users to use.

[0044] It should be noted that the servo motor 4 and the laser sensor are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and the specific composition and principle of the power supply of the servo motor 4 and the laser sensor are clear to those skilled in the art, so they will not be described in detail.

[0045] In summary: the automatic coal classification and screening equipment, through the setting of the sliding table 5, the linkage assembly 6, the guide assembly 7, the gear 61, the sliding shaft 62, the connecting piece 63, the inner wheel shaft 64 and the outer wheel bushing 8, when the sliding shaft 62 moves between the two guide plates 71, the bearing 74 can reduce the friction force of the sliding shaft 62 when it moves, and the movement of the sliding shaft 62 will drive the connecting piece 63 to move, and the movement of the connecting piece 63 can drive the sliding table 5 to receive the material, which solves the problem that the selection of gangue is done by manual or simple mechanical methods and the installation of mechanical arms in various areas to screen good products and unusable products. These methods are costly, time-consuming, and inefficient. Manual screening is labor-intensive, and the accuracy of screening is affected by the fatigue and proficiency of the operator. In addition, the mechanical method also requires regular maintenance, and the accuracy of screening is limited.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Automatic coal sorting and screening equipment, comprising two matching plates (1), a mounting plate (2), four openings (3), four servo motors (4) and four sliding tables (5), characterized in that: The top of the matching plate (1) is fixedly connected to the mounting plate (2) by bolts, and the top angle of the matching plate (1) is 60 degrees. The openings (3) are opened at the four corners of the top of the mounting plate (2). The top of the servo motor (4) is fixedly connected to the mounting plate (2) by four bolts, and the top of the servo motor (4) corresponds to the openings (3). The sliding platform (5) is movably connected to the top of the mounting plate (2); A linkage assembly (6) for controlling the forward and backward movement of the sliding platform (5), wherein the linkage assembly (6) is arranged on top of the servo motor (4); A guide assembly (7) for reducing friction when a linkage assembly (6) moves, wherein eight guide assemblies (7) are arranged on the top of a mounting plate (2).

2. The automatic coal sorting and screening equipment according to claim 1, characterized in that: The linkage assembly (6) comprises a gear (61); the top output end of the servo motor (4) passes through the opening (3) and is fixedly connected to the gear (61); the top of the mounting plate (2) is movably connected to a sliding shaft (62); the top of the sliding shaft (62) is movably connected to a connecting piece (63); the bottom of the sliding platform (5) is fixedly connected to the sliding shaft (62) and the connecting piece (63) via a fixing pin; the bottom of the sliding shaft (62) is fixedly connected to an inner wheel shaft (64) used in conjunction with the gear (61); the number of the inner wheel shafts (64) is plural and meshingly connected to the gear (61).

3. The automatic coal sorting and screening equipment according to claim 2, characterized in that: The surface of the inner wheel shaft (64) is sleeved with an outer wheel bushing (8), and when the outer wheel bushing (8) is meshed with the gear (61), friction and noise can be reduced.

4. The automatic coal sorting and screening equipment according to claim 2, characterized in that: The guide assembly (7) comprises two guide plates (71), the bottom of the guide plates (71) is fixedly connected to the mounting plate (2) via a fixing pin, the sliding shaft (62) is movably connected to the opposite side of the two guide plates (71), and the shape of the opposite side of the guide plate (71) matches the sliding shaft (62), the top of the guide plate (71) is provided with a first mounting groove (72), the bottom of the guide plate (71) is provided with a second mounting groove (73), and the number of the second mounting grooves (73) is three, the first mounting groove (72) and the second mounting groove (73) are both fixedly installed with bearings (74) on the opposite side, and the number of the bearings (74) is five, and the surface of the sliding shaft (62) is in contact with the bearing (74).

5. The automatic coal classification and screening equipment according to claim 4, characterized in that: The top of the guide plate (71) is fixedly connected with a support block (9), the top of the support block (9) is in contact with the sliding table (5), and the support block (9) is made of an engineering high-density material with excellent wear resistance and does not require lubrication when in use.

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