Crushing and screening device

Abstract

The utility model provides a crushing and screening device, which relates to the technical field of ore processing, and comprises a support box body, the two ends of the two side surfaces of the inner cavity of the support box body are fixedly connected with zigzag baffle plates, and the tops of the two side surfaces of the inner cavity of the support box body are fixedly provided with inclined baffle plates; a first through groove is formed in one side of the surface of the top of the supporting box in a penetrating mode, a first protective cover plate is fixedly connected to the top of the supporting box, first motors are fixedly connected to the two ends of the surface of one side of the supporting box, and an interval discharging assembly is arranged in an inner cavity of the first protective cover plate. The bottom of an inner cavity of the supporting box body is sequentially provided with two quick release assemblies from top to bottom, and the surfaces of the two quick release assemblies are connected with sieve plates. According to the utility model, the zigzag baffle plate is used for preventing ores from touching the bottom quick release assembly during falling, the interval falling of the ores is realized through the interval blanking assembly, the quick disassembly and assembly of the sieve plate are realized through the two quick release assemblies, and the ores are sieved through the sieve plate.

Description

Technical Field

[0001] The utility model relates to the technical field of ore processing, in particular to a crushing and screening device. Background Art

[0002] Ore refers to a mineral aggregate from which useful components can be extracted or which has certain properties that can be utilized. It can be divided into metallic minerals and non-metallic minerals. The unit content of useful components (elements or minerals) in an ore is called the ore grade. Precious metal ores such as gold and platinum are expressed in grams per ton, while other ores are usually expressed in percentages.

[0003] In the prior art, a crusher is usually used to crush ores. When some crushers need to collect ores of different sizes after crushing, they usually need to replace screens of different specifications. However, it is inconvenient to disassemble and install the screens inside the crusher, which also affects the safety of the workers.

[0004] Therefore, a crushing and screening device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: a crushing and screening device, comprising: a supporting box body, the bottom of one side surface of the supporting box body is connected to a door panel by a hinge, a handle is fixedly installed on the bottom of one side of the door panel surface, both ends of the inner cavity of the supporting box body are fixedly connected to a zigzag baffle, the top of the inner cavity of the supporting box body is fixedly installed with inclined baffles, one side of the top surface of the supporting box body is provided with a through groove, the top of the supporting box body is fixedly connected to a protective cover plate, both ends of the one side surface of the supporting box body are fixedly connected to a motor, the inner cavity of the protective cover plate is provided with a spacing unloading assembly, the bottom of the inner cavity of the supporting box body is provided with two quick-release assemblies in sequence from top to bottom, the surfaces of the two quick-release assemblies are connected to screen plates, and a collection box is placed at the bottom of the inner cavity of the supporting box body.

[0007] As a preferred embodiment, a triangular block is fixedly connected to the top of the supporting box body, a guide plate is fixedly installed on one end of the two side surfaces of the protective cover plate one, a curved baffle is fixedly connected to the other end of the two side surfaces of the protective cover plate one, a protective cover plate two is fixedly installed on the top of the protective cover plate one, a feed port is connected to the top of the protective cover plate one, the output ends of the two motors one are connected to connecting shafts through one side surface of the supporting box body, the surfaces of the two connecting shafts are fixedly sleeved with crushing rollers, the two ends of the two connecting shafts are respectively embedded in the two ends of the two side surfaces of the inner cavity of the supporting box body through bearings, the two ends of the bottom of the screen plate are fixedly installed with vibration motors, and the two ends of the top of the screen plate are fixedly connected with baffle two.

[0008] As a preferred embodiment, the interval blanking assembly includes two rotating shafts 1, the four ends of the surfaces of the two rotating shafts 1 are fixedly connected with baffles 1, the tops of the two rotating shafts 1 are fixedly sleeved with gears 1, the surfaces of the two gears 1 are meshed with gears 2, the surfaces of the two gears 2 are penetrated by rotating shafts 2, the top of one of the rotating shafts 1 is fixedly connected with motor 2, and both ends of the motor 2 are fixedly installed with L-shaped support columns.

[0009] As a preferred embodiment, the bottoms of the two rotating shafts 1 are respectively embedded in both sides of one end of the top of the supporting box body through bearings, the tops of the two rotating shafts 1 are respectively embedded in both sides of one end of the top of the inner cavity of the protective cover plate 1 through bearings, the bottoms of the two rotating shafts 2 are respectively embedded in both ends of one side of the top of the protective cover plate 1 through bearings, the bottoms of the two L-shaped support columns are fixedly connected to the top of the protective cover plate 1, the multiple baffle plates 1 are evenly divided into two groups, one end of the two groups of baffle plates 1 are both in contact with the surface of the corresponding curved baffle plate, and the motor 2 is located inside the protective cover plate 2.

[0010] As a preferred embodiment, the quick-release component includes two U-shaped clamping plates I. Limiting bars are fixedly connected to the bottoms of the inner surfaces of the two U-shaped clamping plates I. U-shaped clamping plates II are fixedly installed at the tops of the two U-shaped clamping plates I. One ends of the two U-shaped clamping plates II are connected to support plates through movable shafts. Through grooves II are formed through both sides of the tops of the two U-shaped clamping plates I. Spring I is fixedly installed on both sides of the tops of the two U-shaped clamping plates I. The four Spring Is are divided into two groups in pairs. The tops of the two groups of Spring Is are fixedly connected to C-shaped limiting blocks. L-shaped connecting plates are movably embedded in the interiors of the two U-shaped clamping plates I. Through grooves III are formed through the bottoms of one ends of the two L-shaped connecting plates. Limiting blocks are fixedly installed on both sides of the tops of one ends of the two L-shaped connecting plates. Grooves are formed at the tops of the other ends of the two L-shaped connecting plates. Spring II is fixedly connected to both sides of the tops of the other ends of the two L-shaped connecting plates. Telescopic rods are fixedly installed on both sides of the tops of the other ends of the two L-shaped connecting plates.

[0011] As a preferred embodiment, the opposite surfaces of the two U-shaped clamping plates I are respectively connected to the two side surfaces of the inner cavity of the support box. The four through grooves II are divided into two groups in pairs. The bottoms of the two C-shaped limiting blocks are respectively embedded in the two groups of through grooves II. The two limiting bars are respectively embedded in the two through grooves III. The tops of the four Spring IIs and the telescopic rods are respectively connected to the four bottom ends of the sieve plate.

[0012] As a preferred embodiment, the two ends of the triangular block respectively fit the two side surfaces of the inner cavity of the protection cover plate I. One ends of the two guiding plates are respectively fixedly connected to one ends of the two curved baffle plates. The four vibration motors are respectively movably located inside the four grooves. The four zigzag baffle plates are evenly divided into two groups. The tops of the two quick-release components are respectively located at the bottoms of the two groups of zigzag baffle plates. The two crushing rollers are respectively located at the bottoms of the two inclined baffle plates. The through groove I is located at the top of one of the inclined baffle plates.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. The utility model connects the device to an external power supply through a line and starts it through an external controller. When the staff needs to use the device to crush the ore, the two motors 1 and the four vibration motors are started in advance through the external controller, and then the ore is put into the inside of the protective cover plate 1 from the inside of the feed port, and the crushed stone rolls down along the triangular block and is limited by the guide plates on both sides until it touches the baffle plates 1 on both sides, and then the motor 2 is started through the external controller, and the output end of the motor 2 rotates to drive one of the rotating shafts 1 and the gear 1 connected to itself to rotate, and the rotation of one of the gears 1 drives the gear 2 meshing with itself to rotate, and the rotation of the gear 2 drives another gear 2 meshing with itself to rotate, and the other gear The two rotations drive another gear one meshing with itself to rotate, and the rotation of the other gear one drives another rotating shaft one embedded in its surface to rotate. When the two rotating shafts one rotate, they both drive the four baffles one connected to their surfaces to rotate. At this time, the ore can flow out in sections along the gaps between the multiple baffles one on both sides, and the curved baffles on both sides are used to prevent the ore from flowing out from the side. The outflowing ore falls along the through groove one and the inclined baffle on one side to the surface of the two crushing rollers, and then the output ends of the two motors one rotate to drive the two connecting shafts and the crushing rollers to rotate respectively, so as to crush the ore falling on the surface of the crushing roller. In this way, the ore can be put into the crusher in sections, which can reduce the pressure of the crusher and prevent malfunctions from affecting the working efficiency.

[0015] 2. In this utility model, after the ore is crushed, it freely falls to the top of one of the sieve plates and is subjected to primary screening by the vibrating motors on both sides. The ore after screening continues to fall to the top of another sieve plate and is subjected to secondary screening by the vibrating motors on both sides. Both sieve plates are buffered and limited by the springs II and telescopic rods at their four ends. The ore after secondary screening freely falls into the interior of the collection box. Through this setting, the crushed ore can be screened in three different size specifications. The larger-sized ones are left on the surface of the upper sieve plate, the medium-sized ones are left on the surface of the lower sieve plate, and the smaller-sized ones finally fall into the collection box for the convenience of the staff to collect. Since the two quick-release components have the same structure, only one of them will be described. When it is necessary to replace the sieve mesh to collect ores of other specifications, open the door panel through the handle, then lift the two C-shaped limit blocks and rotate the two support plates so that the tops of the two support plates support the bottoms of the C-shaped limit blocks and store energy for the two springs I at the bottoms of the C-shaped limit blocks. The C-shaped limit blocks rise to release the locking of the two limit blocks. At this time, the sieve plate and the two L-shaped connecting plates can be taken out, enabling the staff to replace the sieve plate outside the device. After the sieve plate is taken out, the two C-shaped limit blocks are driven by the springs I on both sides to automatically fall and lock. After the sieve plate is replaced, slide the through slots III opened at the bottoms of the two L-shaped connecting plates along the two limit strips into the interiors of the two U-shaped clamping plates I. When the two L-shaped connecting plates move, the two limit blocks at their tops respectively push the C-shaped limit blocks on both sides up along the arc until after the two L-shaped connecting plates complete the movement, the two C-shaped limit blocks lose the jacking force and return to the initial position relying on the springs I connected to them. At this time, the limit blocks at both ends are limited by the C-shaped limit blocks on both sides to prevent the two L-shaped connecting plates from disengaging from the U-shaped clamping plates I. At this time, the screening operation can continue. By using this method, the sieve plate can be quickly taken out and placed from inside the device without disassembling and installing the sieve plate inside the crusher, ensuring the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front orthographic view of the three-dimensional structure of a crushing and screening device provided by this utility model;

[0017] Figure 2 is the rear view of the three-dimensional structure of a crushing and screening device provided by this utility model;

[0018] Figure 3 is the sectional view of the three-dimensional structure of a crushing and screening device provided by this utility model;

[0019] Figure 4 is the split view of the support box body of a crushing and screening device provided by this utility model;

[0020] Figure 5 is the sectional view of the protection cover plate of a crushing and screening device provided by this utility model;

[0021] Figure 6 A split view of the protective cover plate of a crushing and screening device provided by the present utility model;

[0022] Figure 7 A split view of the interval feeding assembly of a crushing and screening device provided by the present utility model;

[0023] Figure 8 A split view of the quick-release assembly of a crushing and screening device provided by the present utility model;

[0024] Fig. 9 A disassembly view of the quick-release assembly of a crushing and screening device provided by the present utility model;

[0025] Fig.10 A sectional view of the quick-release assembly of a crushing and screening device provided by the present utility model.

[0026] Legend description:

[0027] 1. Support box body; 101. Door panel; 102. Handle; 103. Zigzag baffle; 104. Inclined baffle; 105. First through groove; 106. First protective cover plate; 107. Triangular block; 108. Guide plate; 109. Curved baffle; 110. Second protective cover plate; 111. Feeding port; 2. First motor; 201. Connecting shaft; 202. Crushing roller; 3. Interval feeding assembly; 301. First rotating shaft; 302. Baffle; 303. First gear; 304. Second gear; 305. Second rotating shaft; 306. Second motor; 307. L-shaped support column; 4. Quick-release assembly; 401. First U-shaped clamping plate; 402. Limit strip; 403. Second U-shaped clamping plate; 404. Support plate; 405. Second through groove; 406. First spring; 407. C-shaped limit block; 408. L-shaped connecting plate; 409. Third through groove; 410. Limit stop block; 411. Groove; 412. Second spring; 413. Telescopic rod; 5. Sieve plate; 501. Vibration motor; 502. Baffle; 6. Collection box. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figure 1-10The utility model provides a technical solution: a crushing and screening device, comprising: a supporting box 1, a door panel 101 is connected to the bottom of one side surface of the supporting box 1 through a hinge, a handle 102 is fixedly installed at the bottom of one side of the door panel 101 surface, both ends of the inner cavity surface of the supporting box 1 are fixedly connected with a tortuous baffle 103, and the top of the inner cavity surface of both sides of the supporting box 1 is fixedly installed with an inclined baffle 104. A through groove 105 is opened through one side of the top surface of the supporting box 1, a protective cover plate 106 is fixedly connected to the top of the supporting box 1, a motor 2 is fixedly connected to both ends of the surface of one side of the supporting box 1, and a spacing unloading component 3 is provided in the inner cavity of the protective cover plate 106. Two quick-release components 4 are arranged in sequence at the bottom of the inner cavity of the supporting box 1 from top to bottom, and the surfaces of the two quick-release components 4 are connected with screen plates 5. A collecting box 6 is placed at the bottom of the inner cavity of the supporting box 1.

[0030] Specifically: a zigzag baffle 103 is used to prevent the ore from touching the bottom quick-release assembly 4 when falling, an inclined baffle 104 is used to prevent the ore from falling to the outside of the two crushing rollers 202, a through slot 105 is used to allow the ore inside the protective cover 106 to enter the inside of the supporting box 1, the interval feeding assembly 3 is used to realize the interval falling of the ore, the two quick-release assemblies 4 are used to realize the quick disassembly and assembly of the screen plate 5, the sieve plate 5 is used to screen the ore, and the size of the sieve holes opened on the surface of the two screen plates 5 becomes smaller from top to bottom, which is convenient for step-by-step screening.

[0031] In one embodiment, a triangular block 107 is fixedly connected to the top of the supporting box body 1, a guide plate 108 is fixedly installed on one end of the two side surfaces of the protective cover plate 106, a curved baffle 109 is fixedly connected to the other end of the two side surfaces of the protective cover plate 106, a protective cover plate 2 110 is fixedly installed on the top of the protective cover plate 106, and a feed port 111 is connected to the top of the protective cover plate 106. The output ends of the two motors 2 pass through one side surface of the supporting box body 1 and are connected to a connecting shaft 201. The surfaces of the two connecting shafts 201 are fixedly sleeved with crushing rollers 202. The two ends of the two connecting shafts 201 are respectively embedded in the two ends of the two side surfaces of the inner cavity of the supporting box body 1 through bearings. Vibration motors 501 are fixedly installed at both ends of the bottom of the screen plate 5, and baffle 2 502 is fixedly connected to both ends of the top of the screen plate 5.

[0032] Specifically: the triangular block 107 is used to allow the ore to roll freely onto the surface of the baffle 1 302, the two guide plates 108 are used to guide the movement of the ore, the two curved baffles 109 are used to prevent the ore from flowing out from the side, the protective cover plate 110 is used to protect the motor 2 306, the material is fed through the feed port 111, the two motors 1 2 drive the two connecting shafts 201 and the crushing roller 202 to crush the ore, the vibrating motors 501 on both sides vibrate the screen plate 5 to screen the ore, the baffles 502 on both sides are used to prevent the ore from hitting the quick-release assembly 4, the bottoms of the two guide plates 108 are both in contact with the top of one side of the triangular block 107, and the bottoms of the two curved baffles 109 are both in contact with the top of one end of the support box 1, so as to better block the ore.

[0033] In one embodiment, the interval blanking component 3 includes two rotating shafts 1 301, and the four ends of the surfaces of the two rotating shafts 1 301 are fixedly connected with baffles 1 302, the tops of the two rotating shafts 1 301 are fixedly sleeved with gears 1 303, the surfaces of the two gears 1 303 are meshed with gears 2 304, and the surfaces of the two gears 2 304 are penetrated and embedded with rotating shafts 2 305, the top of one of the rotating shafts 1 301 is fixedly connected with motor 2 306, and both ends of motor 2 306 are fixedly installed with L-shaped support columns 307.

[0034] Specifically: by starting the motor 2 306, the output end of the motor 2 306 rotates to drive one of the rotating shafts 1 301 and the gear 1 303 connected to itself to rotate, one of the gears 1 303 rotates to drive the gear 2 304 meshing with itself to rotate, the gear 2 304 rotates to drive another gear 2 304 meshing with itself to rotate, the other gear 2 304 rotates to drive another gear 1 303 meshing with itself to rotate, the other gear 1 303 rotates to drive another rotating shaft 1 301 embedded on its surface to rotate, and when the two rotating shafts 1 301 rotate, they both drive the four baffles 1 302 connected to their surfaces to rotate, and at this time, the ore can be made to flow out in sections along the gaps between the multiple baffles 1 302 on both sides.

[0035] In one embodiment, the bottoms of the two rotating shafts 301 are respectively embedded in both sides of one end of the top of the supporting box 1 through bearings, the tops of the two rotating shafts 301 are respectively embedded in both sides of one end of the top of the inner cavity of the protective cover plate 106 through bearings, the bottoms of the two rotating shafts 305 are respectively embedded in both ends of one side of the top of the protective cover plate 106 through bearings, the bottoms of the two L-shaped support columns 307 are fixedly connected to the top of the protective cover plate 106, the multiple baffles 302 are evenly divided into two groups, one end of the two groups of baffles 302 are both in contact with the surface of the corresponding curved baffle 109, and the motor 2 306 is located inside the protective cover plate 110.

[0036] Specifically: The bottoms of the two first rotating shafts 301 are respectively embedded on both sides of one end of the top of the support box body 1 through bearings, and the tops of the two first rotating shafts 301 are respectively embedded through bearings on both sides of one end of the inner cavity top of the first protection cover plate 106, so as to fix the two first rotating shafts 301. The bottoms of the two second rotating shafts 305 are respectively embedded on both ends of one side of the top of the first protection cover plate 106 through bearings, so as to fix the two second rotating shafts 305 and the second gear 304. The bottoms of the two L-shaped support columns 307 are fixedly connected to the top of the first protection cover plate 106, so as to fix the second motor 306. The multiple first baffles 302 are evenly divided into two groups, and one ends of the two groups of first baffles 302 are respectively attached to the surfaces of the corresponding curved baffles 109, so that the ore will not flow out from both sides when the multiple first baffles 302 rotate. The second motor 306 is protected by the second protection cover plate 110. The bottoms of the multiple first baffles 302 are respectively attached to the top of one end of the support box body 1, which is convenient for scraping the items sliding down to the top of the support box body 1.

[0037] In one embodiment, the quick-release assembly 4 includes two first U-shaped clamping plates 401. Limiting strips 402 are fixedly connected to the bottoms of the inner surfaces of the two first U-shaped clamping plates 401. Second U-shaped clamping plates 403 are fixedly installed on the tops of the two first U-shaped clamping plates 401. One ends of the two second U-shaped clamping plates 403 are respectively connected to a support plate 404 through a movable shaft. Through grooves two 405 are respectively formed through both sides of the tops of the two first U-shaped clamping plates 401. First springs 406 are fixedly installed on both sides of the tops of the two first U-shaped clamping plates 401. The four first springs 406 are divided into two groups in pairs. The tops of the two groups of first springs 406 are respectively fixedly connected to C-shaped limiting blocks 407. L-shaped connecting plates 408 are movably embedded in the two first U-shaped clamping plates 401. Through grooves three 409 are respectively formed through the bottoms of one ends of the two L-shaped connecting plates 408. Limiting blocks 410 are fixedly installed on both sides of the tops of one ends of the two L-shaped connecting plates 408. Grooves 411 are formed in the tops of the other ends of the two L-shaped connecting plates 408. Second springs 412 are fixedly connected to both sides of the tops of the other ends of the two L-shaped connecting plates 408. Telescopic rods 413 are fixedly installed on both sides of the tops of the other ends of the two L-shaped connecting plates 408.

[0038] Specifically: By lifting the two U-shaped limit blocks 407, and then rotating the two support plates 404, the tops of the two support plates 404 support the bottoms of the U-shaped limit blocks 407, and store energy for the two first springs 406 at the bottoms of the U-shaped limit blocks 407. The upward movement of the U-shaped limit blocks 407 releases the locking of the two limit stoppers 410. At this time, the sieve plate 5 and the two L-shaped connecting plates 408 can be taken out, enabling the staff to replace the sieve plate 5 outside the device. After the sieve plate 5 is taken out, the two U-shaped limit blocks 407 are driven by the first springs 406 on both sides to automatically fall and lock. When the replacement of the sieve plate 5 is completed, the through grooves 409 opened at the bottoms of the two L-shaped connecting plates 408 are slid into the interiors of the two U-shaped clamping plates 401 along the two limit strips 402. When the two L-shaped connecting plates 408 move, the two limit stoppers 410 at their tops respectively push up the U-shaped limit blocks 407 on both sides along the arc. Until after the movement of the two L-shaped connecting plates 408 is completed, the two U-shaped limit blocks 407 lose the jacking force and return to the initial position relying on the first springs 406 connected to them. At this time, the limit stoppers 410 at both ends are both limited by the U-shaped limit blocks 407 on both sides, preventing the two L-shaped connecting plates 408 from detaching from the U-shaped clamping plates 401. At this time, the replacement of the sieve plate 5 is completed.

[0039] In one embodiment, the opposite side surfaces of the two U-shaped clamping plates 401 are respectively connected to the two side surfaces inside the support box body 1. The four through grooves 405 are divided into two groups in pairs. The bottoms of the two U-shaped limit blocks 407 are respectively embedded in the two groups of through grooves 405. The two limit strips 402 are respectively embedded in the two through grooves 409. The tops of the four second springs 412 and the telescopic rods 413 are respectively connected to the four bottom ends of the sieve plate 5.

[0040] Specifically: By respectively connecting the opposite side surfaces of the two U-shaped clamping plates 401 to the two side surfaces inside the support box body 1, the two U-shaped clamping plates 401 are fixed. By dividing the four through grooves 405 into two groups in pairs and respectively embedding the bottoms of the two U-shaped limit blocks 407 in the two groups of through grooves 405, the movement of the two U-shaped limit blocks 407 is not hindered. By respectively embedding the two limit strips 402 in the two through grooves 409, limiting is carried out. By respectively connecting the tops of the four second springs 412 and the telescopic rods 413 to the four bottom ends of the sieve plate 5, the sieve plate 5 is fixed.

[0041] In one embodiment, the two ends of the triangular block 107 are respectively fitted to the two side surfaces of the inner cavity of the protective cover plate 106, one end of the two guide plates 108 is respectively fixedly connected to one end of the two curved baffles 109, the four vibration motors 501 are respectively movable inside the four grooves 411, the four zigzag baffles 103 are evenly divided into two groups, the tops of the two quick-release assemblies 4 are both located at the bottom of the two groups of zigzag baffles 103, the two crushing rollers 202 are respectively located at the bottom of the two inclined baffles 104, and the through groove 105 is located at the top of one of the inclined baffles 104.

[0042] Specifically: by arranging the four vibration motors 501 to move correspondingly inside the four grooves 411, the four vibration motors 501 will not be touched when vibrating; by dividing the four bending baffles 103 into two groups evenly, the tops of the two quick-release components 4 are located at the bottom of the two groups of bending baffles 103, so that the ore falling from above will not fall to the top of the quick-release component 4 and cause damage to it; by arranging the two crushing rollers 202 at the bottom of the two inclined baffles 104 respectively, the ore will not fall to the sides of the two crushing rollers 202; by arranging the through groove 105 at the top of one of the inclined baffles 104, the freely falling ore can move along the guidance of the inclined baffle 104.

[0043] Working principle: the device is connected to an external power supply through a line and started by an external controller. When the staff needs to use the device to crush the ore, the two motors 12 and the four vibration motors 501 are started in advance by the external controller, and then the ore is put into the protective cover plate 106 from the inside of the feed port 111. The crushed stone rolls down along the triangular block 107 and is limited by the guide plates 108 on both sides until it touches the baffle plates 1 302 on both sides. Then the motor 2 306 is started by the external controller, and the output end of the motor 2 306 rotates to drive one of the rotating shafts 1 301 and the gear 1 303 connected to itself to rotate. The rotation of one of the gears 1 303 drives the gear 2 304 meshing with itself to rotate. The rotation of the gear 2 304 drives another gear 2 304 meshing with itself to rotate. The rotation of gear 304 drives another gear 303 meshing with itself to rotate, and the rotation of another gear 303 drives another rotating shaft 301 embedded on its surface to rotate. When the two rotating shafts 301 rotate, they both drive the four baffles 302 connected to their surfaces to rotate. At this time, the ore can flow out in sections along the gaps between the multiple baffles 302 on both sides, and the curved baffles 109 on both sides prevent the ore from flowing out from the side. The outflowing ore falls along the through groove 105 and the inclined baffle 104 on one side to the surface of the two crushing rollers 202, and then the output ends of the two motors 2 rotate to drive the two connecting shafts 201 and the crushing rollers 202 to rotate respectively, and the ore falling on the surface of the crushing rollers 202 is crushed. In this way, the ore can be put into the crusher in sections, the pressure of the crusher can be reduced, and the failure can be prevented from affecting the working efficiency.After the ore is crushed, it freely falls to the top of one of the sieve plates 5, and is first screened by the vibrating motors 501 on both sides. The ore after screening continues to fall to the top of another sieve plate 5 and is secondarily screened by the vibrating motors 501 on both sides. Both sieve plates 5 are buffered and limited by the springs two 412 and telescopic rods 413 at their four ends. The ore after secondary screening freely falls into the interior of the collection box 6. Through this setting, the crushed ore can be screened in three different size specifications. The larger-sized ore remains on the surface of the upper sieve plate 5, the medium-sized ore remains on the surface of the lower sieve plate 5, and the smaller-sized ore finally falls into the collection box 6, which is convenient for the staff to classify and collect. Since the two quick-release components 4 have the same structure, only one of them will be described. When it is necessary to replace the sieve mesh to collect ores of other specifications, the door panel 101 is opened through the handle 102. Subsequently, by lifting the two U-shaped limit blocks 407 and rotating the two support plates 404, the tops of the two support plates 404 support the bottoms of the U-shaped limit blocks 407, and energy is stored for the two springs one 406 at the bottoms of the U-shaped limit blocks 407. The U-shaped limit blocks 407 rise to release the locking of the two limit blocks 410. At this time, the sieve plate 5 and the two L-shaped connecting plates 408 can be taken out, enabling the staff to replace the sieve plate 5 outside the device. After the sieve plate 5 is taken out, the two U-shaped limit blocks 407 are driven by the springs one 406 on both sides to automatically fall and lock. After the sieve plate 5 is replaced, the through grooves three 409 opened at the bottoms of the two L-shaped connecting plates 408 are slid into the interiors of the two U-shaped clamping plates one 401 along the two limit strips 402. When the two L-shaped connecting plates 408 move, the two limit blocks 410 at their tops respectively push up the U-shaped limit blocks 407 on both sides along the arc until after the two L-shaped connecting plates 408 complete their movement, the two U-shaped limit blocks 407 lose the jacking force and return to their initial positions relying on the springs one 406 connected to them. At this time, the limit blocks 410 at both ends are limited by the U-shaped limit blocks 407 on both sides, preventing the two L-shaped connecting plates 408 from detaching from the U-shaped clamping plates one 401. At this time, the screening operation can continue. By using this method, the sieve plate 5 can be quickly taken out and placed from inside the device without disassembling and installing the sieve plate 5 inside the crusher, ensuring the safety of the staff.

[0044] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A crushing and screening device, characterized in that: include: A support box (1), wherein the bottom of one side surface of the support box (1) is connected to a door panel (101) via a hinge, a handle (102) is fixedly mounted on the bottom of one side surface of the door panel (101), both ends of the inner cavity surfaces of the support box (1) are fixedly connected to curved baffles (103), the tops of the inner cavity surfaces of the support box (1) are fixedly mounted to inclined baffles (104), and a through groove (105) is formed on one side of the top surface of the support box (1), A protective cover plate (106) is fixedly connected to the top of the support box (1), a motor (2) is fixedly connected to both ends of the surface of one side of the support box (1), a spacer blanking assembly (3) is provided in the inner cavity of the protective cover plate (106), two quick-release assemblies (4) are arranged in sequence from top to bottom at the bottom of the inner cavity of the support box (1), and the surfaces of the two quick-release assemblies (4) are connected to sieve plates (5), and a collection box (6) is placed at the bottom of the inner cavity of the support box (1).

2. A crushing and screening device according to claim 1, characterized in that: The top of the support box (1) is fixedly connected with a triangular block (107), one end of the two side surfaces of the protective cover plate 1 (106) is fixedly installed with a guide plate (108), the other end of the two side surfaces of the protective cover plate 1 (106) is fixedly connected with a curved baffle (109), the top of the protective cover plate 1 (106) is fixedly installed with a protective cover plate 2 (110), the top of the protective cover plate 1 (106) is connected with a feed port (111), and the two motors The output ends of the first (2) both penetrate through the surface of one side of the supporting box (1) and are connected to a connecting shaft (201); the surfaces of the two connecting shafts (201) are fixedly sleeved with crushing rollers (202); the two ends of the two connecting shafts (201) are respectively embedded in the two ends of the surface of the inner cavity of the supporting box (1) through bearings; the two ends of the bottom of the sieve plate (5) are fixedly installed with a vibration motor (501); and the two ends of the top of the sieve plate (5) are fixedly connected to a baffle plate 2 (502).

3. A crushing and screening device according to claim 1, characterized in that: The spacing blanking assembly (3) comprises two rotating shafts (301), the four ends of the surfaces of the two rotating shafts (301) are fixedly connected with baffles (302), the tops of the two rotating shafts (301) are fixedly sleeved with gears (303), the surfaces of the two gears (303) are meshed with gears (304), the surfaces of the two gears (304) are penetrated and embedded with rotating shafts (305), the top of one of the rotating shafts (301) is fixedly connected with motors (306), and both ends of the motors (306) are fixedly installed with L-shaped support columns (307).

4. A crushing and screening device according to claim 3, characterized in that: The bottoms of the two first rotating shafts (301) are respectively embedded in the two sides of one end of the top of the support box body (1) through bearings, the tops of the two first rotating shafts (301) are respectively embedded in the two sides of one end of the inner cavity top of the first protective cover plate (106) through bearings, the bottoms of the two second rotating shafts (305) are respectively embedded in the two ends of one side of the top of the first protective cover plate (106) through bearings, the bottoms of the two L-shaped support columns (307) are fixedly connected to the top of the first protective cover plate (106), the multiple first baffles (302) are evenly divided into two groups, one ends of the two groups of first baffles (302) are respectively attached to the surfaces of the corresponding curved baffles (109), and the second motor (306) is located inside the second protective cover plate (110).

5. A crushing and screening device according to claim 1, characterized in that: The quick-release assembly (4) includes two first U-shaped clamping plates (401), the bottoms of the inner surfaces of the two first U-shaped clamping plates (401) are fixedly connected with limiting strips (402), the tops of the two first U-shaped clamping plates (401) are fixedly installed with second U-shaped clamping plates (403), one ends of the two second U-shaped clamping plates (403) are respectively connected with support plates (404) through movable shafts, through slots two (405) are respectively formed in the two sides of the tops of the two first U-shaped clamping plates (401) in a penetrating manner, first springs (406) are fixedly installed on the two sides of the tops of the two first U-shaped clamping plates (401), the four first springs (406) are divided into two groups in pairs, the tops of the two groups of first springs (406) are respectively fixedly connected with C-shaped limiting blocks (407), L-shaped connecting plates (408) are movably embedded in the two first U-shaped clamping plates (401), through slots three (409) are respectively formed in the bottoms of one ends of the two L-shaped connecting plates (408) in a penetrating manner, limiting blocks (410) are fixedly installed on the two sides of the tops of one ends of the two L-shaped connecting plates (408), grooves (411) are formed in the tops of the other ends of the two L-shaped connecting plates (408), second springs (412) are respectively fixedly connected to the two sides of the tops of the other ends of the two L-shaped connecting plates (408), and telescopic rods (413) are fixedly installed on the two sides of the tops of the other ends of the two L-shaped connecting plates (408).

6. A crushing and screening device according to claim 5, characterized in that: The opposite side surfaces of the two first U-shaped clamping plates (401) are respectively connected to the two side surfaces of the inner cavity of the support box body (1), the four through slots two (405) are divided into two groups in pairs, the bottoms of the two C-shaped limiting blocks (407) are respectively embedded in the two groups of through slots two (405), the two limiting strips (402) are respectively embedded in the two through slots three (409), and the tops of the four second springs (412) and the telescopic rods (413) are respectively connected to the four ends of the bottom of the sieve plate (5).

7. A crushing and screening device according to claim 2, characterized in that: The two ends of the triangular block (107) are respectively fitted to the two side surfaces of the inner cavity of the protective cover plate (106); one end of the two guide plates (108) is respectively fixedly connected to one end of the two curved baffles (109); the four vibration motors (501) are respectively movable inside the four grooves (411); the four curved baffles (103) are evenly divided into two groups; the tops of the two quick-release assemblies (4) are both located at the bottom of the two groups of curved baffles (103); the two crushing rollers (202) are respectively located at the bottom of the two inclined baffles (104); and the through slot (105) is located at the top of one of the inclined baffles (104).

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