A gravel strong impact counter-attack crusher and method with convenient discharging

Abstract

The application belongs to the technical field of crushers, and particularly relates to a gravel strong impact crusher facilitating discharging and a method thereof. The crusher is provided with a certain space in a discharge port area, and the device is inconvenient to discharge, is inconvenient to use, and part of gravel not reaching a crushing standard is prone to entering and staying in the area, so that the part of gravel not reaching the crushing standard is conveyed out, affecting the crushing quality. The following scheme is proposed, including support plate seats and a discharging bin, and the top of each support plate seat is provided with a same crusher body. The disclosed gravel strong impact crusher facilitating discharging and a method thereof have the effect of facilitating gravel discharging and collecting. When in use, the device can automatically collect and discharge gravel, without the assistance of staff, and the safety of the device in use is improved. Meanwhile, the device can screen gravel while discharging, and the crushing quality of gravel of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of crusher technology, and in particular to a powerful impact crusher and method for crushing sand and gravel with convenient material feeding. Background Technology

[0002] Sand and gravel refer to a loose mixture of sand grains and gravel. In geology, mineral or rock particles with a diameter of 0.074 to 2 mm are called sand, while those with a diameter greater than 2 mm are called gravel or breccia (the difference between the two lies in the degree of rounding; for details, see the entries for conglomerate and sandstone).

[0003] If the gravel in sand and gravel is mostly composed of pebbles, it is called gravel. In everyday life, some people also refer to sandstone as sand and gravel.

[0004] Crushed stone is indispensable in modern infrastructure construction, and the quality requirements for crushed stone are becoming increasingly stringent, thus demanding higher standards for stone production equipment. Impact crushers produce stone products with good particle shape and high quality, making them increasingly widely used in stone production lines.

[0005] A search revealed Chinese patent application CN208599855U, which discloses a high-capacity, high-impact impact crusher with large feed capacity, including baffles installed in the inner cavities of both the front and rear upper frames. The high-capacity, high-impact impact crusher in this patent has the following drawbacks: When in use, the discharge port area has a certain space, making it inconvenient to discharge material. Workers are required to collect the sand and gravel within this space, which is inconvenient. Furthermore, during crushing, some sand and gravel that does not meet the crushing standards easily enters and remains in this area, causing it to be conveyed out, affecting the crushing quality. Summary of the Invention

[0006] This invention discloses a powerful impact crusher and method for convenient material feeding, aiming to solve the technical problems in the prior art where the discharge port area of ​​the device has a certain space, making it inconvenient to discharge material and requiring staff to collect the sand and gravel inside the space, which is inconvenient to use. Furthermore, during the crushing of sand and gravel, some sand and gravel that do not meet the crushing standard are prone to enter and remain in this area, causing the un-crushed sand and gravel to be transported out, affecting the crushing quality.

[0007] This invention proposes a powerful impact crusher for sand and gravel with convenient material feeding, comprising a support plate base and a feeding bin. The top of the two support plate bases is provided with the same crusher body. An installation plate is fixedly connected to one side of the outer wall of the crusher body, and a feeding screening module is provided on the installation plate. The feeding screening module includes a fixed bracket and a feeding frame. The fixed bracket is fixedly connected to the top of the installation plate, and the feeding frame is fixedly connected to the bottom of the installation plate. A rectangular opening is provided at the top of the installation plate, and the feeding bin is located between the two support plate bases. A screening and re-crushing module is provided on one side of the outer wall of the feeding bin, and a feeding dust suppression module is provided on both support plate bases.

[0008] The system is equipped with a support plate base, crusher body, mounting plates, a feeding and screening module, a rectangular opening, a screening and re-crushing module, and a feeding and dust suppression module. The feeding and screening module automatically feeds sand and gravel, increasing the convenience of use. It also automatically screens the sand and gravel after feeding, improving the quality of the finished product and meeting the equipment's feeding requirements. The screening and re-crushing module transports the sand and gravel that does not meet the crushing standards back into the crusher body for secondary crushing, increasing the equipment's efficiency and meeting its crushing needs. The feeding and dust suppression module reduces dust generated during feeding, preventing dust from escaping or being inhaled by workers, thus improving the equipment's efficiency and safety, and meeting its operational requirements.

[0009] In a preferred embodiment, two electric telescopic rods are fixedly connected to the fixed bracket. The output ends of the two electric telescopic rods are fixedly connected to the same unloading frame, which is located above the mounting plate. The inner walls of both sides of the unloading frame are movably connected to the same mounting rod. The outer wall of the mounting rod is fixedly connected to a driven gear and two winding wheels. Each winding wheel is equipped with a connecting cable. The top of the unloading frame has two circular holes through which the two connecting cables pass. One end of each connecting cable is fixedly connected to the same closing baffle. Two electric telescopic rods are fixedly connected to the unloading frame. The bottom ends of two telescopic springs are fixedly connected to the top of the closed baffle. A motor is fixedly connected to the inner wall of one side of the feeding frame. The output shaft of motor one is connected to a drive gear via a coupling. The drive gear meshes with the driven gear. Two fixed frame members are fixedly connected to the feeding frame. Each fixed frame member has three feed inlets on its outer wall. Limit rings are fixedly connected to the outer walls of both fixed frames. A screening frame is movably connected to the inner walls of the two limit rings. The screening frame is located between the two fixed frame members. An adjusting frame is movably connected to the outer wall of the screening frame, and the adjusting frame has multiple adjusting orifices on its outer wall. The outer wall of the screening frame is fixedly connected to a gear ring. A connecting bracket is fixedly connected to one side of the outer wall of one of the fixed frame components. One end of the connecting bracket is fixedly connected to a second motor. The output shaft of the second motor is connected to a transmission gear via a coupling. The transmission gear meshes with the gear ring. Two limiting guide blocks are fixedly connected to one side of the outer wall of the feeding frame. Connecting toothed plates are movably connected to the outer walls of both limiting guide blocks. A third motor is fixedly connected to the feeding frame. The output shaft of the third motor is connected to a toothed gear via a coupling. Both connecting toothed plates mesh with the toothed gear. One end of each of the two connecting toothed plates is fixedly connected to... The connecting arc rods are fixedly connected to one end of each of the two connecting arc rods. The outer walls of the two fixed rods are fixedly connected to a fixed ring plate, a feeding push plate, and four agitators. The agitators are located inside the screening frame. The two feeding push plates are located inside the two fixed frame members respectively. The outer walls of the opposite sides of the two fixed ring plates are fixedly connected to a return spring. One end of the two return springs is fixedly connected to one side of the outer wall of the two fixed frame members respectively. The outer walls of the two feeding push plates are fixedly connected to an elastic corrugated ring. The outer walls of the two elastic corrugated rings are fixedly connected to one side of the inner wall of the two fixed frame members respectively.

[0010] By incorporating a material screening module, the device can automatically collect and process sand and gravel, eliminating the need for manual collection of sand and gravel from the crusher's discharge port. This enhances the ease of use and safety of the device. Furthermore, after collection, the screening module separates the sand and gravel, distinguishing between those that do not meet crushing standards and those that do, thereby improving the device's effectiveness and the overall quality of the finished sand and gravel.

[0011] In a preferred embodiment, the screening and re-crushing module includes a mounting frame, which is fixedly connected to one outer wall of the feeding hopper. A partition opening is provided on one outer wall of the feeding hopper, and a drive motor is fixedly connected to one outer wall of the mounting frame. The output shaft of the drive motor is connected to a partition component via a coupling. The partition component is located inside the partition opening. A guide plate and three transmission sleeves are fixedly connected to the top of the mounting frame. The outer wall of the guide plate contacts the outer walls of the three transmission sleeves. A common fixed frame is fixedly connected to the outer walls of the three transmission sleeves. Three universal motors are fixedly connected to the bottom of the mounting frame. The output shafts of the three universal motors are each connected to a transmission screw rod via a coupling. The three transmission screw rods are located inside the three transmission sleeves. A conveying frame is fixedly connected to the fixed frame. Two conveying rollers are movably connected to the conveying frame. The outer walls of the two conveying rollers are provided with the same conveyor belt. A stepper motor is fixedly connected to one outer wall of the conveying frame. The output shaft of the stepper motor is connected to one end of one of the conveying rollers via a coupling.

[0012] By incorporating a screening and re-crushing module, the module can transport the portion of sand and gravel that did not meet the crushing standard back into the crusher body for secondary crushing until it meets the crushing standard. This further enhances the crushing efficiency of the device. Simultaneously, the uncrushed sand and gravel includes those retained in the discharge area, preventing them from being transported out during subsequent finished sand and gravel delivery, thus further improving the quality of the finished crushed sand and gravel product.

[0013] In a preferred embodiment, both of the material feeding and dust suppression modules include a water storage tank, which is respectively mounted on two support plates. Each water storage tank has a water inlet on its outer wall, and a conveying pump is fixedly connected to one side of each water storage tank. A conveying hose is fixedly connected to the output end of each of the two conveying pumps, and a dust suppression water pipe is fixedly connected to the output end of each of the two conveying hoses. Multiple dust suppression nozzles are provided on the outer wall of each of the two dust suppression water pipes. A fixed side plate is fixedly connected to one side of each of the two support plates, and an installation ring frame is fixedly connected to one side of each of the two fixed side plates. An electric push rod is fixedly connected to the inner wall of each of the two installation ring frames, and a fixed ring is fixedly connected to the output end of each of the two electric push rods. The inner wall of each fixed ring is fixedly connected to the outer wall of each of the two dust suppression water pipes.

[0014] By incorporating a material feeding dust suppression module, water mist is sprayed during operation to suppress fine dust generated during the crushing process of sand and gravel. This prevents the escape of fine dust during crushing and feeding, thereby increasing the cleanliness of the working environment. Furthermore, by suppressing fine dust, workers are prevented from inhaling it, thus increasing the versatility of the device and enhancing its safety.

[0015] A convenient material feeding method for a powerful impact crusher for sand and gravel, using the aforementioned convenient material feeding method for a powerful impact crusher for sand and gravel, includes the following steps:

[0016] Step 1: Before use, rotate the adjustment frame to adjust the size of the screen holes on the screening frame that allow sand and gravel to pass through. After the sand and gravel raw materials are crushed by the crusher body, start the feeding screening module. The crushed sand and gravel is taken out from inside the crusher body through the feeding frame and transported to the feeding frame. Then, the sand and gravel is screened by the feeding screening module until the feeding is completed.

[0017] Step 2: During the material feeding and screening process, the material feeding dust suppression module is activated. The material feeding dust suppression module sprays water from the water storage tank to perform material feeding dust suppression treatment until the material feeding is completed.

[0018] Step 3: After the material is fed, start the screening and re-crushing module, which will cause the baffle to rotate into the lower hopper. At the same time, rotate the adjusting frame to allow the sand and gravel that do not meet the crushing standard to fall and land on the mounting support frame through the baffle. Then, the screening and re-crushing module will transport the sand and gravel that do not meet the crushing standard back into the crusher body for secondary crushing.

[0019] As can be seen from the above, the sand and gravel impact crusher provided by the present invention has the function of facilitating the feeding and collection of sand and gravel. When in use, the device can automatically collect and feed sand and gravel without the need for staff assistance, which increases the safety of the device during use. At the same time, the device can screen the sand and gravel while feeding, which increases the crushing quality of the sand and gravel. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a powerful impact crusher for sand and gravel that facilitates material feeding, as proposed in this invention.

[0021] Figure 2 This is a schematic diagram of the overall side view of a powerful impact crusher for sand and gravel that facilitates material feeding, as proposed in this invention.

[0022] Figure 3 This is a schematic diagram of the material feeding and screening module of a powerful impact crusher for sand and gravel with convenient material feeding, as proposed in this invention.

[0023] Figure 4 This is a schematic diagram of the combined structure of the feeding frame and closed baffle of a powerful impact crusher for sand and gravel with convenient feeding, as proposed in this invention.

[0024] Figure 5 This is a partial structural breakdown diagram of the material screening module of a powerful impact crusher for sand and gravel with convenient material feeding, as proposed in this invention.

[0025] Figure 6 For the present invention Figure 5 Partial structural diagram;

[0026] Figure 7 For the present invention Figure 6 Partial structural breakdown diagram;

[0027] Figure 8 This is a schematic diagram of the screening and re-crushing module structure of a powerful impact crusher for sand and gravel with convenient material feeding, as proposed in this invention.

[0028] Figure 9 This is a schematic diagram of the combined structure of the transmission sleeve and the fixed plate frame of a powerful impact crusher for sand and gravel with convenient material feeding, as proposed in this invention.

[0029] Figure 10 This is a schematic diagram of the material feeding and dust suppression module of a powerful impact crusher for sand and gravel that facilitates material feeding, as proposed in this invention.

[0030] In the diagram: 1. Support plate base; 2. Crusher body; 3. Screening and re-crushing module; 301. Mounting support frame; 302. Drive motor; 303. Partition plate; 304. Conveying frame; 305. Conveying belt; 306. Transmission sleeve; 307. Guide plate; 308. Conveying roller; 309. Transmission screw; 310. Fixed plate frame; 311. Stepper motor; 312. General motor; 4. Discharge and dust suppression module; 401. Dust suppression water pipe; 402. Mounting ring frame; 403. Electric push rod; 404. Conveying hose; 405. Fixed side plate; 406. Water storage tank; 407. Water inlet; 408. Conveying pump; 409. Fixed ring; 410. Dust suppression nozzle; 5. Discharge bin; 6. Discharge and screening module; 601. Feeding frame; 602. Adjusting hole frame; 603. Discharge frame; 60 4. Connecting cable; 605. Mounting rod; 606. Fixed bracket; 607. Closing baffle; 608. Telescopic spring; 609. Driven gear; 610. Drive gear; 611. Motor 1; 612. Rewinding reel; 613. Electric telescopic rod; 614. Adjusting orifice; 615. Screening frame; 616. Connecting arc rod; 617. Limiting guide block; 618. Connecting toothed plate; 619. Fixed rod; 620. Fixed ring plate; 621. Connecting bracket; 622. Motor 2; 623. Transmission gear; 624. Gear ring; 625. Agitator; 626. Gear with missing tooth; 627. Motor 3; 628. Fixed frame; 629. Return spring; 630. Feed inlet; 631. Limiting ring; 632. Elastic corrugated ring; 633. Feed push plate; 7. Mounting plate; 8. Rectangular opening. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] The present invention discloses a powerful impact crusher for sand and gravel with convenient material feeding. It is mainly used in scenarios where there is a certain space in the discharge port area, the device is inconvenient to discharge, and it is difficult to use. In addition, some sand and gravel that have not reached the crushing standard are easy to enter and stay in the area, so that the sand and gravel that have not reached the crushing standard will be transported out, affecting the crushing quality.

[0033] Reference Figures 1-10A powerful impact crusher for sand and gravel with convenient material feeding includes a support plate base 1 and a feeding bin 5. The top of the two support plate bases 1 is equipped with the same crusher body 2. An installation plate 7 is fixedly connected to one side of the outer wall of the crusher body 2, and a feeding screening module 6 is provided on the installation plate 7. The feeding screening module 6 includes a fixed bracket 606 and a feeding frame 601. The fixed bracket 606 is fixedly connected to the top of the installation plate 7, and the feeding frame 601 is fixedly connected to the bottom of the installation plate 7. A rectangular opening 8 is opened on the top of the installation plate 7, and the feeding bin 5 is located between the two support plate bases 1. A screening and re-crushing module 3 is provided on one side of the outer wall of the feeding bin 5, and a feeding dust suppression module 4 is provided on both support plate bases 1.

[0034] Specifically, the feeding and screening module 6 can automatically feed sand and gravel, increasing the convenience of the device during use. It can also automatically screen the sand and gravel after feeding, improving the quality of the finished product and meeting the device's feeding requirements. The screening and re-crushing module 3 can transport the sand and gravel that did not meet the crushing standards back into the crusher body 2 for secondary crushing, increasing the device's effectiveness and meeting its crushing requirements. The feeding and dust suppression module 4 can suppress the dust generated during feeding, preventing dust from escaping or being inhaled by workers, increasing the device's effectiveness and safety, and meeting its usage requirements.

[0035] Reference Figures 1-7In a preferred embodiment, two electric telescopic rods 613 are fixedly connected to the fixed bracket 606. The output ends of the two electric telescopic rods 613 are fixedly connected to the same unloading frame 603. The unloading frame 603 is located above the mounting plate 7. The inner walls of both sides of the unloading frame 603 are connected to the same mounting rod 605 via bearings. The outer wall of the mounting rod 605 is fixedly connected to a driven gear 609 and two winding wheels 612. Each of the two winding wheels 612 is provided with a connecting cable 604. The top of the unloading frame 603 has two round holes. Two connecting cables 604 pass through the interior of two circular holes, and one end of each cable 604 is fixedly connected to the same closed baffle 607. Two telescopic springs 608 are fixedly connected to the feeding frame 603, and the bottom ends of both springs 608 are fixedly connected to the top of the closed baffle 607. A motor 611 is fixedly connected to the inner wall of one side of the feeding frame 603. The output shaft of the motor 611 is connected to a drive gear 610 via a coupling. The drive gear 610 meshes with the driven gear 609. Two fixed frame members are fixedly connected to the feeding frame 601. 628, each of the two fixed frame members 628 has three feed inlets 630 on its outer wall. Limiting rings 631 are fixedly connected to the outer walls of both fixed frames. The inner walls of the two limiting rings 631 are rotatably connected to the same screening frame 615, which is located between the two fixed frame members 628. An adjusting frame 602 is rotatably connected to the outer wall of the screening frame 615, and the outer wall of the adjusting frame 602 has multiple adjusting holes 614. A gear ring 624 is fixedly connected to the outer wall of the screening frame 615. A connecting bracket 621 is fixedly connected to one side of the outer wall of one of the fixed frame members 628. One end of the connecting bracket 621 is fixedly connected to a second motor 622. The output shaft of the second motor 622 is connected to a transmission gear 623 via a coupling. The transmission gear 623 meshes with a gear ring 624. Two limiting guide blocks 617 are fixedly connected to one side of the outer wall of the feeding frame 601. Connecting tooth plates 618 are slidably connected to the outer walls of the two limiting guide blocks 617. A third motor 627 is fixedly connected to the feeding frame 601. The output shaft of the third motor 627 is connected to a toothed gear 626 via a coupling. Both connecting tooth plates 618 mesh with the toothed gear 626.Each of the two connecting toothed plates 618 has a connecting arc rod 616 fixedly connected to one end. Each of the two connecting arc rods 616 has a fixing rod 619 fixedly connected to one end. Each of the two fixing rods 619 has a fixing ring plate 620, a feeding push plate 633, and four agitators 625 fixedly connected to its outer wall. All agitators 625 are located inside the screening frame 615. The two feeding push plates 633 are located inside the two fixing frame members 628. Each of the two fixing ring plates 620 has a return spring 629 fixedly connected to its opposite outer wall. One end of each return spring 629 is fixedly connected to one outer wall of each of the two fixing frame members 628. Each of the two feeding push plates 633 has an elastic corrugated ring 632 fixedly connected to one outer wall of each of the two elastic corrugated rings 632. The outer walls of each elastic corrugated ring 632 are fixedly connected to the inner walls of each of the two fixing frame members 628.

[0036] Specifically, before use, rotate the adjusting frame 602 to change the size of the screen holes on the screening frame 615 that allow sand and gravel to pass through. Then, feed the material. During feeding, start the electric telescopic rod 613, which drives the feeding frame 603 into the crusher body 2, allowing sand and gravel to enter the feeding frame 603. Then, start the motor 611, which drives the drive gear 610 to rotate. Since the drive gear 610 meshes with the driven gear 609, the motor 611 drives the driven gear 609 and the mounting rod 605 to rotate, which in turn drives the mounting rod 605 and the winding wheel 612 to rotate. This causes the winding wheel 612 to loosen the connecting cable 604. Then, the telescopic spring 608 drives the closing baffle 607 to descend, closing the sand and gravel inlet area of ​​the feeding frame 603. After that, the electric telescopic rod 613 drives the feeding frame 603 to reset, and the feeding frame... The 603 motor moves the sand and gravel to the rectangular opening 8, causing it to fall into the feeding frame 601. Then, it enters the fixed frame 628 through the feed inlet 630. At this time, the third motor 627 is started, which drives the toothed gear 626 to rotate, thereby driving the connecting toothed plate 618 to move. This, in turn, drives the connecting arc rod 616 and the fixed rod 619 to move, causing the two feeding push plates 633 to move to the opposite side to push the sand and gravel into the screening frame 615. Afterward, the toothed gear 626 and the connecting toothed plate 618 are briefly separated. The return spring 629 drives the feeding push plate 633 to return to its original position for repeated operation. With each operation, the stirring element 625 moves the sand and gravel inside the screening frame 615. At the same time, the second motor 622 is started, which drives the transmission gear 623 to rotate, thereby driving the gear ring 624 and the screening frame 615 to rotate to screen the discharged sand and gravel until the screening is completed.

[0037] In specific application scenarios, the feeding and screening module 6 is suitable for the feeding and screening of sand and gravel. That is, when the feeding and screening module 6 is in use, it can automatically feed and collect sand and gravel, so that the staff does not need to assist in feeding and collecting sand and gravel in the discharge space of the crusher body 2. This increases the convenience and safety of the device during use. After feeding and collecting, the feeding and screening module 6 can screen the sand and gravel, separating the sand and gravel that does not meet the crushing standard from the sand and gravel that does meet the crushing standard. This increases the effectiveness of the device and the overall quality of the finished sand and gravel.

[0038] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9 In a preferred embodiment, the screening and re-crushing module 3 includes a mounting frame 301, which is fixedly connected to one side outer wall of the feeding hopper 5. A partition opening is provided on one side outer wall of the feeding hopper 5, and a drive motor 302 is fixedly connected to the same side outer wall of the mounting frame 301. The output shaft of the drive motor 302 is connected to a partition member 303 via a coupling. The partition member 303 is located inside the partition opening. A guide plate 307 and three transmission sleeves 306 are fixedly connected to the top of the mounting frame 301. The outer wall of the guide plate 307 contacts the outer walls of the three transmission sleeves 306, and the outer walls of the three transmission sleeves 306 are fixedly connected to the same... The fixed plate frame 310 is fixedly connected to the bottom of the mounting support frame 301. The output shafts of the three general-purpose motors 312 are all connected to the transmission screw rods 309 through couplings. The three transmission screw rods 309 are located inside the three transmission sleeves 306 respectively. The fixed plate frame 310 is fixedly connected to the conveying frame 304. The conveying frame 304 is connected to two conveying rollers 308 through bearings. The outer walls of the two conveying rollers 308 are provided with the same conveyor belt 305. A stepper motor 311 is fixedly connected to one side of the outer wall of the conveying frame 304. The output shaft of the stepper motor 311 is connected to one end of one of the conveying rollers 308 through a coupling.

[0039] Specifically, after the material is fed, the drive motor 302 is started, which drives the partition 303 to rotate, so that the partition 303 rotates into the material feeding bin 5. Then, the sand and gravel that do not meet the crushing standard slides down through the partition 303 onto the mounting support frame 301 and enters the transmission sleeve 306 area. At this time, the general motor 312 is started, which drives the transmission screw 309 to transport the sand and gravel that do not meet the crushing standard and convey it to the fixed plate frame 310. As the transmission continues, the sand and gravel will fall onto the conveyor belt 305. At this time, the stepper motor 311 is started, which drives the conveyor roller 308 to rotate, and then the conveyor roller 308 drives the conveyor belt 305 to transport the sand and gravel that do not meet the crushing standard into the crusher body 2 for re-crushing.

[0040] In specific application scenarios, the screening and re-crushing module 3 is suitable for the re-crushing stage of sand and gravel that has not reached the crushing standard. That is, when the screening and re-crushing module 3 is in use, it can transport the sand and gravel that has not reached the crushing standard back into the crusher body 2 for secondary crushing until it reaches the crushing standard, thereby further increasing the crushing effect of the device. At the same time, the sand and gravel that has not reached the crushing standard includes the sand and gravel that is stuck in the space of the device's discharge port area, thereby preventing the sand and gravel that has not reached the crushing standard from being transported out during the subsequent transportation of finished sand and gravel, and further increasing the quality of the finished sand and gravel product of the device.

[0041] Reference Figure 1 , Figure 2 and Figure 10 In a preferred embodiment, both dust suppression modules 4 include a water storage tank 406, which is respectively mounted on two support plates 1. Each water storage tank 406 has a water inlet 407 on its outer wall, and a conveying pump 408 is fixedly connected to one side of each water storage tank 406. A conveying hose 404 is fixedly connected to the output end of each of the two conveying pumps 408, and a dust suppression water pipe 401 is fixedly connected to the output end of each of the two conveying hoses 404. Multiple dust suppression nozzles 410 are provided on the outer wall of the water pipe 401; a fixed side plate 405 is fixedly connected to one side of the outer wall of each of the two support plate seats 1, an installation ring frame 402 is fixedly connected to one side of the outer wall of each of the two fixed side plates 405, an electric push rod 403 is fixedly connected to the inner wall of each of the two installation ring frames 402, a fixed ring 409 is fixedly connected to the output end of each of the two electric push rods 403, and the inner wall of each of the two fixed rings 409 is fixedly connected to the outer wall of each of the two dust suppression water pipes 401.

[0042] Specifically, during the material screening process, the conveying pump 408 is started, and the conveying pump 408 delivers water from the water storage tank 406 to the dust suppression water pipe 401 through the conveying hose 404. The water is then sprayed out through the dust suppression nozzle 410 to suppress dust. At the same time, the electric push rod 403 is started, which drives the fixed ring 409 to move. In turn, the fixed ring 409 drives the dust suppression water pipe 401 to move, so that the two dust suppression water pipes 401 drive the dust suppression nozzle 410 to move back and forth in the material screening area to perform dust suppression treatment.

[0043] In specific application scenarios, the material feeding and dust suppression module 4 is suitable for the sand and gravel feeding process. When in use, the material feeding and dust suppression module 4 can spray water mist to suppress the fine dust generated during the crushing process of sand and gravel feeding, thus preventing the fine dust from escaping during sand and gravel crushing and feeding. This increases the cleanliness of the working environment of the device. At the same time, by suppressing the fine dust, it can prevent workers from inhaling it, thereby increasing the versatility of the device and further improving the safety of the device.

[0044] Furthermore, the traditional lubrication method for the main shaft bearings of crushers is grease lubrication. The bearings generate high temperatures during rotation, which may lead to seizure after a period of operation. Moreover, grease lubrication cannot be used for higher speed applications. Therefore, a new design was developed:

[0045] 1. A radial oil drain hole is provided on the end cover, and an oil inlet hole is provided on the bearing cover. A thin oil station is also added. The thin oil station is connected to the oil inlet hole and the oil drain hole to realize the replacement of grease lubrication with thin oil circulation lubrication, which reduces the heat generation of the bearing and can be applied to higher speed applications.

[0046] 2. Since the thin oil is a fluid, the sealing structure needs to be optimized. An oil slinger is installed between the end cover and the bearing. The main shaft drives the oil slinger to rotate, which plays a certain role in blocking the thin oil and preventing the thin oil from flowing into the gap between the oil slinger and the end cover.

[0047] 3. A sealing ring is provided between the oil slinger and the end cap to further prevent thin oil from flowing out from the gap between the oil slinger and the end cap.

[0048] A convenient material feeding method for a powerful impact crusher for sand and gravel, using the aforementioned convenient material feeding method for a powerful impact crusher for sand and gravel, includes the following steps:

[0049] Step 1: Before use, rotate the adjusting frame 602 to change the size of the screen holes on the screening frame 615 that allow sand and gravel to pass through. After the sand and gravel raw materials are crushed by the crusher body 2, start the electric telescopic rod 613. The electric telescopic rod 613 drives the feeding frame 603 into the crusher body 2, allowing the sand and gravel to enter the feeding frame 603. Then, start the motor 611, which drives the drive gear 610 to rotate. Since the drive gear 610 meshes with the driven gear 609, the motor 611 drives the driven gear 609 and the mounting rod 605 to rotate, which in turn drives the mounting rod 605 and the winding wheel 612 to rotate. This causes the winding wheel 612 to loosen the connecting cable 604. Then, the telescopic spring 608 drives the closing baffle 607 to descend, closing the sand and gravel inlet area of ​​the feeding frame 603. After that, the electric telescopic rod 613 drives the feeding frame 603 to reset, and then... As the feeding frame 603 moves, it moves the sand and gravel to the rectangular opening 8, causing it to fall into the feeding frame 601. Then, it enters the fixed frame 628 through the feed inlet 630. At this time, the third motor 627 is started, which drives the toothed gear 626 to rotate, thereby driving the connecting toothed plate 618 to move. This, in turn, drives the connecting arc rod 616 and the fixed rod 619 to move, causing the two feeding push plates 633 to move to opposite sides to push the sand and gravel into the screening frame 615. After that, the toothed gear 626 and the connecting toothed plate 618 are briefly separated. The return spring 629 drives the feeding push plate 633 to return to its original position for repeated operation. With each operation, the stirring element 625 moves the sand and gravel inside the screening frame 615. At the same time, the second motor 622 is started, which drives the transmission gear 623 to rotate, thereby driving the gear ring 624 and the screening frame 615 to rotate to screen the fed sand and gravel until the feeding is completed.

[0050] Step 2: During the material screening process, the conveying pump 408 is started. The conveying pump 408 delivers water from the water storage tank 406 to the dust suppression water pipe 401 through the conveying hose 404, and sprays the water out through the dust suppression nozzle 410 to suppress dust. At the same time, the electric push rod 403 is started, which drives the fixed ring 409 to move. In turn, the fixed ring 409 drives the dust suppression water pipe 401 to move, so that the two dust suppression water pipes 401 drive the dust suppression nozzle 410 to move back and forth in the material screening area to suppress dust until the material screening is completed.

[0051] Step 3: After the material is fed, start the drive motor 302. The drive motor 302 drives the partition 303 to rotate, so that the partition 303 rotates into the material feeding bin 5. At the same time, rotate the adjusting frame 602 to let the sand and gravel that has not reached the crushing standard fall. Then, the sand and gravel that has not reached the crushing standard slides through the partition 303 onto the mounting support frame 301 and enters the area of ​​the transmission sleeve 306. At this time, start the general motor 312. The general motor 312 drives the transmission screw 309 to transport the sand and gravel that has not reached the crushing standard and convey it to the fixed plate frame 310. As the transmission continues, the sand and gravel will fall onto the conveyor belt 305. At this time, start the stepper motor 311. The stepper motor 311 drives the conveyor roller 308 to rotate, and then the conveyor roller 308 drives the conveyor belt 305 to transport the sand and gravel that has not reached the crushing standard into the crusher body 2 for re-crushing.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A powerful impact crusher for sand and gravel with convenient material feeding, comprising a support plate base and a feeding bin, characterized in that, The same crusher body is set on the top of the two support plates. An installation plate is fixedly connected to one side of the outer wall of the crusher body. A feeding screening module is set on the installation plate. The feeding screening module includes a fixed bracket and a feeding frame. The fixed bracket is fixedly connected to the top of the installation plate, and the feeding frame is fixedly connected to the bottom of the installation plate. A rectangular opening is opened on the top of the installation plate, and the feeding bin is located between the two support plates. A screening and re-crushing module is set on one side of the outer wall of the feeding bin, and a feeding dust suppression module is set on both support plates. Two electric telescopic rods are fixedly connected to the fixed bracket. The output ends of the two electric telescopic rods are fixedly connected to the same feeding frame. The feeding frame is located above the mounting plate. Both winding wheels are equipped with connecting cables. The top of the feeding frame has two round holes. The two connecting cables pass through the inside of the two round holes respectively. One end of the two connecting cables is fixedly connected to the same closed baffle. Two telescopic springs are fixedly connected to the feeding frame. The bottom ends of the two telescopic springs are fixedly connected to the top of the closed baffle. Two fixed frame pieces are fixedly connected to the feeding frame. The outer walls of the two fixed frame pieces are each provided with three feed ports. Limit rings are fixedly connected to the outer walls of the two fixed frames. The inner walls of the two limit rings are rotatably connected to the same screening frame. The screening frame is located between the two fixed frame pieces. An adjustment hole frame is movably connected to the outer wall of the screening frame. The outer wall of the adjustment hole frame is provided with multiple adjustment holes. Furthermore, two limiting guide blocks are fixedly connected to one side of the outer wall of the feeding frame. Connecting toothed plates are movably connected to the outer walls of the two limiting guide blocks. Motor 3 is fixedly connected to the feeding frame. The output shaft of motor 3 is connected to a toothed gear through a coupling. Both connecting toothed plates mesh with the toothed gear. One end of each of the two connecting toothed plates is fixedly connected to a connecting arc rod, and one end of each of the two connecting arc rods is fixedly connected to a fixing rod. The outer walls of each of the two fixing rods are fixedly connected to a fixing ring plate, a feeding push plate, and four agitators. The agitators are located inside the screening frame. The two feeding push plates are located inside the two fixing frames respectively. The outer walls of the opposite sides of the two fixing ring plates are fixedly connected to a return spring. One end of each return spring is fixedly connected to one side of the outer wall of the two fixing frames respectively. The outer walls of each of the two feeding push plates are fixedly connected to an elastic corrugated ring. The outer walls of each elastic corrugated ring are fixedly connected to one side of the inner wall of the two fixing frames respectively.

2. The sand and gravel impact crusher with convenient material feeding as described in claim 1, characterized in that, The inner walls on both sides of the feeding frame are movably connected to the same mounting rod, and the outer wall of the mounting rod is fixedly connected to a driven gear and two winding wheels.

3. The sand and gravel impact crusher with convenient material feeding according to claim 2, characterized in that, A motor is fixedly connected to the inner wall of one side of the feeding frame. The output shaft of the motor is connected to a drive gear through a coupling. The drive gear meshes with the driven gear.

4. A powerful impact crusher for sand and gravel with convenient material feeding as described in claim 3, characterized in that, A gear ring is fixedly connected to the outer wall of the screening frame. A connecting bracket is fixedly connected to one side of the outer wall of one of the fixed frame components. A motor is fixedly connected to one end of the connecting bracket. The output shaft of the motor is connected to a transmission gear through a coupling. The transmission gear meshes with the gear ring.

5. A powerful impact crusher for sand and gravel with convenient material feeding as described in claim 4, characterized in that, The screening and re-crushing module includes a mounting frame, which is fixedly connected to one side of the outer wall of the feeding hopper. A partition opening is provided on one side of the outer wall of the feeding hopper, and a drive motor is fixedly connected to one side of the outer wall of the mounting frame. The output shaft of the drive motor is connected to a partition component via a coupling. The partition component is located inside the partition opening. A guide plate and three transmission sleeves are fixedly connected to the top of the mounting frame. The outer wall of the guide plate contacts the outer wall of the three transmission sleeves, and the outer walls of the three transmission sleeves are fixedly connected to the same fixed plate frame.

6. A powerful impact crusher for sand and gravel with convenient material feeding according to claim 5, characterized in that, Three universal motors are fixedly connected to the bottom of the mounting frame. The output shafts of the three universal motors are all connected to transmission screws via couplings. The three transmission screws are located inside the three transmission sleeves respectively. A conveyor frame is fixedly connected to the fixed plate frame. Two conveyor rollers are movably connected to the conveyor frame. The outer walls of the two conveyor rollers are equipped with the same conveyor belt. A stepper motor is fixedly connected to one side of the outer wall of the conveyor frame. The output shaft of the stepper motor is connected to one end of one of the conveyor rollers via a coupling.

7. A powerful impact crusher for sand and gravel with convenient material feeding according to claim 6, characterized in that, Both material feeding and dust suppression modules include water storage tanks, which are respectively mounted on two support plates. Both water storage tanks have water inlets on their outer walls, and a conveying pump is fixedly connected to one side of the outer wall of each water storage tank. The output ends of both conveying pumps are fixedly connected to conveying hoses, and the output ends of both conveying hoses are fixedly connected to dust suppression water pipes. Multiple dust suppression nozzles are installed on the outer walls of both dust suppression water pipes.

8. A powerful impact crusher for sand and gravel with convenient material feeding according to claim 7, characterized in that, Fixed side plates are fixedly connected to one outer wall of each of the two support plates. Mounting ring frames are fixedly connected to one outer wall of each of the two fixed side plates. Electric push rods are fixedly connected to the inner walls of each of the two mounting ring frames. Fixed rings are fixedly connected to the output ends of each of the two electric push rods. The inner walls of the two fixed rings are fixedly connected to the outer walls of the two dust suppression water pipes, respectively.

9. A convenient feeding method for a powerful impact crusher for sand and gravel, using the convenient feeding method for a powerful impact crusher for sand and gravel as described in claim 8, characterized in that... Includes the following steps: Step 1: Before use, rotate the adjustment frame to adjust the size of the screen holes on the screening frame that allow sand and gravel to pass through. After the sand and gravel raw materials are crushed by the crusher body, start the feeding screening module. The crushed sand and gravel is taken out from inside the crusher body through the feeding frame and transported to the feeding frame. Then, the sand and gravel is screened by the feeding screening module until the feeding is completed. Step 2: During the material feeding and screening process, the material feeding dust suppression module is activated. The material feeding dust suppression module sprays water from the water storage tank to perform material feeding dust suppression treatment until the material feeding is completed. Step 3: After the material is fed, start the screening and re-crushing module, which will cause the baffle to rotate into the lower hopper. At the same time, rotate the adjusting frame to allow the sand and gravel that do not meet the crushing standard to fall and land on the mounting support frame through the baffle. Then, the screening and re-crushing module will transport the sand and gravel that do not meet the crushing standard back into the crusher body for secondary crushing.

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