Limestone crushing and grading equipment

Abstract

The utility model discloses limestone crushing and grading equipment, and particularly relates to the technical field of limestone processing equipment, the limestone crushing and grading equipment comprises a crushing box, a movable frame is fixedly mounted in the crushing box, and an adjustable screening plate for screening limestone is movably connected in the movable frame; a plurality of limiting grooves are formed in the top face of the adjustable screening plate, a plurality of screening holes of different sizes are formed in the top face of the adjustable screening plate, and the multiple screening holes of different sizes are located among the multiple limiting grooves correspondingly. According to the limestone crushing and grading equipment disclosed by the utility model, in actual work, a first motor drives a threaded rod to rotate, so that two moving blocks can move in opposite directions, and then two driving rods can drive an adjustable screening plate to move, so that screening holes with different sizes are positioned below a second crushing roller; and under the action of a spring, a limiting plate can be inserted into a limiting groove, and therefore limestone of different sizes can be screened out according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of limestone processing equipment, in particular to limestone crushing and grading equipment. Background Art

[0002] Limestone is also called limestone for short. It is a carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and clastic minerals. It has gray, grayish white, grayish black, yellow, light red, brownish red and other colors. It is generally not very hard and has a violent chemical reaction with dilute hydrochloric acid. It is classified as a sedimentary rock according to its genesis. Crushing equipment is required for limestone mining.

[0003] After searching, for example, the utility model with application number 202320899304.0 discloses a limestone crushing and grading device, including a mounting shell, which can hold limestone and can screen and discharge the crushed limestone; a grading crushing mechanism. The utility model screens the crushed limestone through a screening plate, and the screening hole size on the screening plate is relatively fixed, which leads to a relatively fixed size of the screened limestone. When limestone of different sizes needs to be screened, it is more cumbersome. Therefore, in order to solve the above defects, the inventor proposes a limestone crushing and grading device. Utility Model Content

[0004] The main purpose of the utility model is to provide a limestone crushing and grading device, which can effectively solve the cumbersome problem of screening out limestones of different sizes.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A limestone crushing and grading device comprises a crushing box, a feed port is fixedly installed on the top surface of the crushing box, a movable frame is fixedly installed inside the crushing box, an adjustable screening plate for screening limestone is movably connected inside the movable frame, a plurality of limit grooves are opened on the top surface of the adjustable screening plate, a plurality of screening holes of different sizes are opened on the top surface of the adjustable screening plate, and the plurality of screening holes of different sizes are respectively located between the plurality of limit grooves;

[0007] A threaded rod is movably installed on one side of the interior of the movable frame, and a sliding rod is fixedly installed on the other side of the interior of the movable frame, moving blocks are threadedly connected on both sides of the outer surface of the threaded rod, and the two moving blocks are movably connected to the sliding rod, a driving rod is movably installed on one side of the two moving blocks, and the two driving rods are movably connected to the adjustable screening plate, a first motor is fixedly installed on one side of the outer surface of the movable frame, and the output end of the first motor is fixedly connected to the threaded rod.

[0008] Preferably, storage cavities are provided on both sides of the outer surface of the crushing box, springs are fixedly installed inside the two storage cavities, limit plates are fixedly installed on the bottom surfaces of the two springs, and hanging rings are movably installed on one side of the two limit plates, and hooks are fixedly installed on both sides of the outer surface of the crushing box.

[0009] Preferably, two first rotating shafts are movably installed inside the crushing box, and the first crushing rollers are fixedly installed on one side of the outer surfaces of the two first rotating shafts located inside the crushing box, gears are fixedly installed on one end of the two first rotating shafts extending out of the crushing box, and the two gears are meshed, and a third motor is fixedly installed on one side of the gears on the outer surface of the crushing box, and the output end of the third motor is fixedly connected to one of the gears.

[0010] Preferably, movable grooves are provided on both sides of the outer surface of the crushing box, two supporting blocks are movably connected inside the two movable grooves, and two second rotating shafts are movably installed between the four supporting blocks, and second crushing rollers are fixedly installed on one side of the outer surfaces of the two second rotating shafts located inside the crushing box, and the second crushing rollers are located below the first crushing rollers, two second motors are fixedly installed on one side of the four supporting blocks, and the output ends of the two second motors are respectively fixedly connected to the two second rotating shafts, sliders are movably installed on both sides of the outer surface of the crushing box, and two moving rods are movably connected on one side of the two sliders, and the four moving rods are respectively movably connected to the four supporting blocks, cylinders are fixedly installed on both sides of the outer surface of the crushing box, and the output ends of the two cylinders are respectively fixedly connected to the two sliders, a guide plate is fixedly installed inside the crushing box, and the movable frame is located below the second crushing roller.

[0011] Preferably, the material guide plate is located below the movable frame, the material guide plate is inclined, and a material discharge port is provided inside the crushing box on a side of the inclined material guide plate.

[0012] Preferably, the outer surface of the threaded rod is provided with two opposite threads.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses limestone crushing and grading equipment. By setting a movable frame, in actual work, a first motor drives a threaded rod to rotate, so that two moving blocks can move in opposite directions, and then two driving rods can drive an adjustable screening plate to move, so that screening holes of different sizes are located below a second crushing roller, and under the action of a spring, a limiting plate can be inserted into a limiting groove, so that limestone of different sizes can be screened out according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the movable frame of the utility model;

[0017] Figure 3 This is a schematic diagram of the storage cavity structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the front view structure of the crushing box of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the crushing box of the utility model.

[0020] In the figure: 1. crushing box; 2. feed inlet; 3. movable frame; 201. adjustable screening plate; 202. limit slot; 203. screening hole; 204. threaded rod; 205. slide bar; 206. moving block; 207. first motor; 208. driving rod; 101. storage chamber; 102. spring; 103. limit plate; 104. hanging ring; 105. hook; 106. slider; 107. cylinder; 108. movable slot; 109. support block; 110. moving rod; 111. second motor; 112. gear; 113. third motor; 114. first rotating shaft; 115. first crushing roller; 116. second rotating shaft; 117. second crushing roller; 118. guide plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] The utility model discloses a limestone crushing and grading device, such as Figure 1-5 As shown, it includes a crushing box 1, a feed port 2 is fixedly installed on the top surface of the crushing box 1, a movable frame 3 is fixedly installed inside the crushing box 1, an adjustable screening plate 201 for screening limestone is movably connected inside the movable frame 3, a plurality of limiting grooves 202 are provided on the top surface of the adjustable screening plate 201, a plurality of screening holes 203 of different sizes are provided on the top surface of the adjustable screening plate 201, so that limestone of different sizes can be screened out according to actual needs, and the plurality of screening holes 203 of different sizes are respectively located between the plurality of limiting grooves 202.

[0023] A threaded rod 204 is movably installed on one side of the interior of the movable frame 3, and the outer surface of the threaded rod 204 is provided with two opposite threads, and a sliding rod 205 is fixedly installed on the other side of the interior of the movable frame 3. Moving blocks 206 are threadedly connected on both sides of the outer surface of the threaded rod 204, and the two moving blocks 206 are movably connected to the sliding rod 205. When the threaded rod 204 rotates, the two moving blocks 206 can move in opposite directions, and the sliding rod 205 can prevent the two moving blocks 206 from rotating with the rotation of the threaded rod 204.

[0024] A driving rod 208 is movably installed on one side of the two moving blocks 206, and the two driving rods 208 are movably connected to the adjustable screening plate 201. When the two moving blocks 206 move in opposite directions, the two driving rods 208 can push the adjustable screening plate 201 to move. A first motor 207 is fixedly installed on one side of the outer surface of the movable frame 3, and the output end of the first motor 207 is fixedly connected to the threaded rod 204.

[0025] Both sides of the outer surface of the crushing box 1 are provided with storage cavities 101, and springs 102 are fixedly installed inside the two storage cavities 101. Limiting plates 103 are fixedly installed on the bottom surfaces of the two springs 102. When the limiting plates 103 squeeze the springs 102, they can be retracted into the storage cavities 101, and one side of the two limiting plates 103 is movably installed with hanging rings 104. Both sides of the outer surface of the crushing box 1 are fixedly installed with hooks 105. By hanging the hanging rings 104 in the hooks 105, the limiting plates 103 can be prevented from being ejected out of the storage cavities 101 by the springs 102.

[0026] Two first rotating shafts 114 are movably installed inside the crushing box 1, and the first crushing rollers 115 are fixedly installed on one side of the outer surfaces of the two first rotating shafts 114 located inside the crushing box 1, and gears 112 are fixedly installed on one end of the two first rotating shafts 114 extending out of the crushing box 1, and the two gears 112 are meshed, and then when one of the gears 112 rotates, it can drive the other gear 112 to rotate in the opposite direction, and then the two gears 112 can drive the two first rotating shafts 114 to rotate in opposite directions, so as to preliminarily crush the limestone.

[0027] A third motor 113 is fixedly mounted on the outer surface of the crushing box 1 at one side of the gear 112 , and an output end of the third motor 113 is fixedly connected to one of the gears 112 .

[0028] Movable grooves 108 are provided on both sides of the outer surface of the crushing box 1, and two support blocks 109 are movably connected inside the two movable grooves 108. The support blocks 109 can move inside the movable grooves 108, and two second rotating shafts 116 are movably installed between the four support blocks 109. Second crushing rollers 117 are fixedly installed on one side of the outer surface of the two second rotating shafts 116 located inside the crushing box 1, and the second crushing rollers 117 are located below the first crushing rollers 115. When the two second crushing rollers 117 rotate, the limestone that has been initially crushed can be crushed for the second time.

[0029] Two second motors 111 are fixedly mounted on one side of the four support blocks 109 , and output ends of the two second motors 111 are fixedly connected to two second rotating shafts 116 , respectively. The second motors 111 can drive the second rotating shafts 116 to rotate.

[0030] Slide blocks 106 are movably installed on both sides of the outer surface of the crushing box 1, and two moving rods 110 are movably connected to one side of the two slide blocks 106. The four moving rods 110 are movably connected to four support blocks 109 respectively. Cylinders 107 are fixedly installed on both sides of the outer surface of the crushing box 1, and the output ends of the two cylinders 107 are fixedly connected to the two slide blocks 106 respectively. When the cylinder 107 pushes the slide block 106 to rise and fall, the moving rod 110 can push the support block 109 to move, and then the spacing between the two second crushing rollers 117 can be adjusted to crush limestone of different sizes according to actual needs. A guide plate 118 is fixedly installed inside the crushing box 1, and the movable frame 3 is located below the second crushing roller 117. The limestone after two crushings will fall onto the adjustable screening plate 201 for screening.

[0031] The guide plate 118 is located below the movable frame 3, and the guide plate 118 is inclined. A discharge port is provided inside the crushing box 1 on the inclined side of the guide plate 118. The screened limestone can fall onto the guide plate 118, and the inclined guide plate 118 can make the limestone slide to the discharge port for discharge.

[0032] The working principle of the utility model is as follows: the first motor 207 and the two second motors 111 are started to rotate the first crushing roller 115 and the second crushing roller 117, and then the limestone is poured into the crushing box 1 through the feed port 2, and the rotating first crushing roller 115 and the second crushing roller 117 can crush it, and the crushed limestone will fall on the adjustable screening plate 201 for screening, and the screened limestone will fall to the inclined guide plate 118 and be discharged through the discharge port. In this process, the first motor 207 can be started, and the first motor 207 drives the threaded When the rod 204 rotates, the two moving blocks 206 can move in opposite directions, and then the two driving rods 208 can drive the adjustable screening plate 201 to move, so that the screening holes 203 of different sizes are located under the second crushing roller 117 to screen out limestone of different sizes. In addition, the cylinder 107 can be started. When the cylinder 107 pushes the slider 106 to rise and fall, the moving rod 110 can push the supporting block 109 to move, and then the distance between the two second crushing rollers 117 can be adjusted to crush limestone of different sizes according to actual needs.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A limestone crushing and grading device, comprising a crushing box (1), characterized in that: A feed port (2) is fixedly mounted on the top surface of the crushing box (1), a movable frame (3) is fixedly mounted inside the crushing box (1), an adjustable screening plate (201) for screening limestone is movably connected inside the movable frame (3), a plurality of limit grooves (202) are provided on the top surface of the adjustable screening plate (201), a plurality of screening holes (203) of different sizes are provided on the top surface of the adjustable screening plate (201), and the plurality of screening holes (203) of different sizes are respectively located between the plurality of limit grooves (202); A threaded rod (204) is movably mounted on one side of the interior of the movable frame (3), and a sliding rod (205) is fixedly mounted on the other side of the interior of the movable frame (3); both sides of the outer surface of the threaded rod (204) are threadedly connected with moving blocks (206), and both moving blocks (206) are movably connected to the sliding rod (205); a driving rod (208) is movably mounted on one side of the two moving blocks (206), and both driving rods (208) are movably connected to the adjustable screening plate (201); a first motor (207) is fixedly mounted on one side of the outer surface of the movable frame (3), and an output end of the first motor (207) is fixedly connected to the threaded rod (204).

2. The limestone crushing and grading equipment according to claim 1, characterized in that: The outer surface of the crushing box (1) is provided with a storage cavity (101) on both sides, and a spring (102) is fixedly installed inside the two storage cavities (101). The bottom surfaces of the two springs (102) are fixedly installed with a limit plate (103), and one side of the two limit plates (103) is movably installed with a hanging ring (104). The outer surface of the crushing box (1) is fixedly installed with a hook (105) on both sides.

3. The limestone crushing and grading equipment according to claim 1 is characterized in that: Two first rotating shafts (114) are movably installed inside the crushing box (1), and a first crushing roller (115) is fixedly installed on one side of the outer surfaces of the two first rotating shafts (114) located inside the crushing box (1), and a gear (112) is fixedly installed on one end of the two first rotating shafts (114) extending out of the crushing box (1), and the two gears (112) are meshed, and a third motor (113) is fixedly installed on the outer surface of the crushing box (1) located on one side of the gear (112), and the output end of the third motor (113) is fixedly connected to one of the gears (112).

4. The limestone crushing and grading equipment according to claim 1 is characterized in that: Both sides of the outer surface of the crushing box (1) are provided with movable grooves (108), the interiors of the two movable grooves (108) are movably connected with two support blocks (109), and two second rotating shafts (116) are movably installed between the four support blocks (109), and the outer surfaces of the two second rotating shafts (116) are fixedly installed with second crushing rollers (117) on one side located inside the crushing box (1), and the second crushing rollers (117) are located below the first crushing rollers (115), and two second motors (111) are fixedly installed on one side of the four support blocks (109), and the output ends of the two second motors (111) are respectively The crushing box (1) is fixedly connected to two second rotating shafts (116), and sliders (106) are movably installed on both sides of the outer surface of the crushing box (1), and one side of the two sliders (106) is movably connected to two moving rods (110), and the four moving rods (110) are movably connected to four supporting blocks (109), respectively. Cylinders (107) are fixedly installed on both sides of the outer surface of the crushing box (1), and the output ends of the two cylinders (107) are fixedly connected to the two sliders (106), respectively. A guide plate (118) is fixedly installed inside the crushing box (1), and the movable frame (3) is located below the second crushing roller (117).

5. The limestone crushing and grading equipment according to claim 4 is characterized in that: The material guide plate (118) is located below the movable frame (3), the material guide plate (118) is inclined, and a material discharge port is provided inside the crushing box (1) on the inclined side of the material guide plate (118).

6. The limestone crushing and grading equipment according to claim 1 is characterized in that: The outer surface of the threaded rod (204) is provided with two opposite threads.

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